Abstract

The invention relates to a method for producing a heat exchanger, wherein the method comprises the following steps: providing a plate composite composed of at least two overlapping plates which are integrally connected to one another in coupling surfaces, wherein the plates are separated outside the coupling surfaces; producing at least one opening, running transversely to a plane formed by the plates, through at least one of the plates; forming at least one channel between the plates outside the coupling surfaces by deforming at least one of the plates by means of internal high-pressure forming. The invention also relates to a heat exchanger and to a tool for use in the method.

IPC Classes  ?

• B21D 26/021 - Deforming sheet bodies
• B21D 28/34 - Perforating toolsDie holders
• B21D 53/04 - Making other particular articles heat exchangers, e.g. radiators, condensers of sheet metal
• F28F 3/14 - Elements constructed in the shape of a hollow panel, e.g. with channels by separating portions of a pair of joined sheets to form channels, e.g. by inflation

Abstract

The invention relates to a method for producing endless profiles from fibre-reinforced plastics material, comprising the following steps: pultruding a preliminary profile (P40) in a preforming device (40), the preliminary profile being cured to different degrees in successive first and second profile portions (P40a, P40b), the first profile portions (P40a) being cured so that they are dimensionally stable and the second profile portions (P40b) remaining deformable; shaping and irradiating the second profile portions (P40b) in a shaping and irradiating unit (50), the second profile portions (P40b) being shaped by a shaping tool into a shape differing from the first profile portions, and being cured by irradiation with electromagnetic radiation while the shaping tool is in interlocking engagement with the second profile portion. The invention further relates to an assembly for carrying out the method.

IPC Classes  ?

• B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
• B29C 35/08 - Heating or curing, e.g. crosslinking or vulcanising by wave energy or particle radiation
• B29C 59/02 - Surface shaping, e.g. embossingApparatus therefor by mechanical means, e.g. pressing

Abstract

The invention relates to a heat exchanger, in particular in the form of a battery cooling device for an electric battery module of an electric drive on an electric vehicle, wherein the heat exchanger has a cooling circuit for circulating a temperature-control fluid, wherein the cooling circuit is formed between two plates connected to each other in regions by roll bonding, wherein the plates are integrally connected in joined regions and are widened in non-connected hollow regions in order to form the cooling circuit, wherein flow elements which are surrounded by flow on all sides and which influence the flow of the temperature-control fluid through the cooling circuit are formed by the joined regions.

IPC Classes  ?

• F28F 3/14 - Elements constructed in the shape of a hollow panel, e.g. with channels by separating portions of a pair of joined sheets to form channels, e.g. by inflation
• H01M 10/65 - Means for temperature control structurally associated with the cells

Abstract

A battery cooling device for an electric battery module of an electric drive on an electric vehicle forms a substantially closed flow chamber for circulating a temperature control fluid. A plurality of flow elements are arranged in the flow chamber, which influence a flow of the temperature control fluid through the flow chamber.

IPC Classes  ?

• H01M 10/613 - Cooling or keeping cold
• H01M 10/625 - Vehicles
• H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange

Abstract

A coupling rod comprises a connecting element made of a fiber-reinforced plastic by a pultrusion process, the connecting element having a strut portion with a longitudinal axis and a connecting portion; a joint element; and a carrier element connected to the connecting element and the joint element, the carrier element being made of plastic by overmolding; wherein the matrix of the fiber-reinforced plastic is a thermoset and the connecting portion is formed relative to the strut portion, wherein an interlocking connection is formed between the connecting portion and the carrier element by the overmolded carrier element. A method of producing a coupling rod is further described.

IPC Classes  ?

• B60G 7/00 - Pivoted suspension armsAccessories thereof
• B29C 45/14 - Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mouldApparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
• B29C 70/20 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length oriented in a single direction, e.g. roving or other parallel fibres
• B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
• B29C 70/54 - Component parts, details or accessoriesAuxiliary operations
• B29L 31/06 - Rods, e.g. connecting rods
• B60G 21/055 - Stabiliser bars
• F16C 7/02 - Constructions of connecting-rods with constant length

Abstract

The invention relates to a wheel suspension (1) for a motor vehicle, comprising: a spring link (2) which is designed as a leaf spring element (3); at least one fastening device (4) which has two fastening elements (6, 7) which each have a respective abutment surface (8, 9) between which the spring link (2) is arranged and connected in a force-fitting manner to the fastening device (4); at least one holding device (14) which has two holding parts (16, 17) which each have a respective support surface (18, 19) between which the spring link (2) is arranged and connected in a force-fitting manner to the holding device (14) via the support surfaces (18, 19), wherein the first fastening element (6) has a receiving opening (26) and the second fastening element (7) has a connection part (27) which is arranged in the receiving opening (26) to form a form-fitting connection (27a), and/or the holding parts (16, 17) are designed separately from one another and at least the support surface (18, 19) of one of the holding parts (16, 17) is connected in a form-fitting manner to the spring link (2).

IPC Classes  ?

• B60G 11/02 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only
• B60G 11/08 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only arranged substantially transverse to the longitudinal axis of the vehicle
• B60G 11/10 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
• F16F 1/368 - Leaf springs

Goods & Services

Scooters [vehicles]; electrically operated scooters; push scooters [vehicles].

Goods & Services

Scooters [vehicles]; electrically operated scooters; push scooters [vehicles].

Abstract

A housing assembly for electrical storage comprises a base tray with a base and a circumferentially closed tray frame, that is formed in one piece from a metallic material; a structural frame with a plurality of frame elements and reinforcing elements that are each produced from steel material and are connected to one another to form the structural frame, the structural frame being inserted into the base tray and connected thereto; wherein the yield strength of the steel material of the structural frame is at least 10% greater than the yield strength of the metallic material of the tray frame; and a cover which is releasably connectable to the tray frame, wherein the tray frame and the cover enclose a receiving space for electrical storage.

IPC Classes  ?

• B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
• H01M 50/224 - Metals
• H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion

Abstract

A shaft assembly comprises: a hollow shaft with an axis of rotation, and a hub body connected to the hub body in a force-locking manner, wherein the hollow shaft comprises, viewed in cross-section, a circumferentially closed wall with a plurality of circumferentially distributed support portions in abutting contact with the hub body and with spring portions spaced from an inner circumferential face of the hub body, wherein inner surface regions of the spring portions lie on a smaller radius around the axis of rotation than inner face regions of the support portions, wherein the wall comprises a varying thickness over the circumference, wherein the thickness in the support portions is smaller than in the spring portions.

IPC Classes  ?

• F16D 1/072 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving plastic deformation
• F16D 1/08 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hubCouplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with hub and longitudinal key
• F16D 1/10 - Quick-acting couplings in which the parts are connected by simply bringing them together axially
• F16D 1/12 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements allowing adjustment of the parts about the axis

Goods & Services

Scooters [vehicles]; Electrically operated scooters; Push scooters [vehicles].

Goods & Services

Scooters [vehicles]; Electrically operated scooters; Push scooters [vehicles].

Abstract

A stabilizer assembly for a two-track vehicle comprises: a first and a second stabilizer section; a spring element between the stabilizer sections; a hydraulic actuator having an actuator outer part and an actuator inner part, each of which is non-rotatably connected to one of the stabilizer sections, and an intermediate element connected to the actuator outer part and actuator inner part respectively via outer and inner engagement means, wherein one of the engagement means has a pitch component in the axial direction and the other runs parallel to the longitudinal axis, so that a relative rotational movement of the actuator parts is converted into an axial movement of the intermediate element, wherein the intermediate element pressurises a first and second hydraulic chamber respectively; the hydraulic chambers being hydraulically connected to one another with interposition of a control element.

IPC Classes  ?

• B60G 11/64 - Resilient suspensions characterised by arrangement, location, or kind of springs having springs of different kinds not including leaf springs having both torsion-bar springs and fluid springs
• B60G 17/02 - Spring characteristics
• B60G 21/055 - Stabiliser bars

Abstract

The invention relates to a coupling rod, comprising: a connection element (3) which is produced from a fibre-reinforced plastic material by means of a pultrusion process, wherein the connection element (3) has a strut portion (8) having a longitudinal axis (A3) and a connection portion (9, 9'); an articulation element (4, 5); and a support element (6, 7) which is connected to the connection element (3) and to the articulation element (4, 5) and is produced from a plastic material by means of overmoulding; wherein the matrix of the fibre-reinforced plastic material is a thermoset and the connection portion is deformed relative to the strut portion, wherein an interlocking connection between the connection portion (9, 9') and the support element (6, 7) is formed by the overmoulded support element. The invention also relates to a method for producing a coupling rod.

IPC Classes  ?

• B60G 7/00 - Pivoted suspension armsAccessories thereof
• B29C 70/52 - Pultrusion, i.e. forming and compressing by continuously pulling through a die
• B29C 70/84 - Moulding material on preformed parts to be joined
• F16C 7/02 - Constructions of connecting-rods with constant length
• F16C 11/06 - Ball-jointsOther joints having more than one degree of angular freedom, i.e. universal joints

Abstract

Battery cooling device for an electrical battery module of an electric drive in an electric vehicle, wherein the battery cooling device forms a substantially closed flow chamber for circulating a temperature-control fluid and wherein a large number of flow elements are arranged in the flow chamber, said flow elements influencing a flow of the temperature-control fluid through the flow chamber.

IPC Classes  ?

• H01M 10/625 - Vehicles
• H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange

Abstract

The invention relates to a housing assembly for electrical storage means, comprising: a base tray (3) having a base (7) and a peripherally closed tray frame (6) which is produced in one piece from a metal material by shaping; a structural frame (4) having a plurality of frame elements (8, 9, 10, 11) and reinforcing elements (12) which are each made of steel material and are connected to one another to form the structural frame, the structural frame (4) being inserted into the base tray (3) and being connected thereto, the yield strength of the steel material of the structural frame (4) being at least 10% greater than the yield strength of the metal material of the tray frame (6); and a cover (5) which can be releasably connected to the tray frame (6), the tray frame (6) and the cover (5) enclosing a receiving space for electrical storage means.

IPC Classes  ?

• H01M 50/224 - Metals
• H01M 50/233 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions

Abstract

A running gear for small electrical vehicles provides the possibility of inclining and of steering the vehicle and of damping bumps in the carriageway, the chassis comprising a frame connection to the vehicle frame, a rigid or damped rocker beam assembly, a central bolt, a flexible transverse link plate, two uprights for keeping hold of the two front wheels, and two steering rods which each connect one of the two uprights to the steering device. The area of use comprises multi-wheeled small vehicles.

IPC Classes  ?

• B62K 5/08 - Cycles with handlebars, equipped with three or more main road wheels with steering devices acting on two or more wheels
• B62D 21/11 - Understructures, i.e. chassis frame on which a vehicle body may be mounted with resilient means for suspension
• B62K 3/00 - Bicycles

Abstract

An apparatus for processing metallic strip material comprises a feeder for feeding strip material; a strip drive with at least one controllable traction drive with a carrier and a motor, a drivable traction loop and a press assembly, wherein the power of the motor and the pressing force of the press assembly are variably controllable; a roller assembly for flexible rolling; a measuring device for measuring a physical parameter of a component acting on the strip material; wherein the driving power of the motor is controllable on the basis of the physical parameter measured by the measuring device.

IPC Classes  ?

• B21B 37/58 - Roll-force controlRoll-gap control
• B21B 1/24 - Metal rolling methods or mills for making semi-finished products of solid or profiled cross-sectionSequence of operations in milling trainsLayout of rolling-mill plant, e.g. grouping of standsSuccession of passes or of sectional pass alternations for rolling bands or sheets of indefinite length in a continuous process

Abstract

A foldable self-supporting scooter comprises at least three wheels, a steering column, a footboard, a front axle for receiving at least one front wheel, a rear suspension for receiving at least one rear wheel, and a folding mechanism that autonomously folds the scooter, wherein a synchronization rod provides that the center of gravity of the scooter remains between the front and rear wheels at all times during the folding operation, without the need for the scooter to be held by the user and without tipping over.

IPC Classes  ?

• B62K 15/00 - Collapsible or foldable cycles
• B62K 5/00 - Cycles with handlebars, equipped with three or more main road wheels
• B62K 5/08 - Cycles with handlebars, equipped with three or more main road wheels with steering devices acting on two or more wheels
• B62K 25/12 - Axle suspensions for mounting axles resiliently on cycle frame or fork with rocking arm pivoted on each fork leg

Abstract

The disclosure relates to a housing assembly for receiving electrical storage means for an electrically drivable motor vehicle, comprising: a frame comprising a plurality of frame elements made of a metallic material, with at least one of said frame elements having a variable sheet thickness over a longest length; a base connected to the frame so as to form a sealed shell; and a cover releasably connectable to the frame, wherein the base, the frame and the cover enclose a receiving space for electrical storage means, wherein the base comprises an integral cooling structure through which a coolant can flow.

IPC Classes  ?

• H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange
• H01M 10/613 - Cooling or keeping cold
• H01M 10/625 - Vehicles
• H01M 10/647 - Prismatic or flat cells, e.g. pouch cells
• H01M 50/22 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by the material of the casings or racks
• H01M 50/236 - Hardness
• H01M 50/244 - Secondary casingsRacksSuspension devicesCarrying devicesHolders characterised by their mounting method
• H01M 50/249 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders specially adapted for aircraft or vehicles, e.g. cars or trains

Abstract

The invention relates to a stabilizer assembly of a two-track vehicle for stabilizing a rolling movement, the stabilizer assembly being operable on at least two different spring characteristics, comprising a first and a second stabilizer half, each coupled to a wheel of the vehicle, wherein the first and the second stabilizer halves are coupled such that they can rotate relative to each other about their longitudinal axis by means of a spring element, whereby the stabilizer is operable with a first spring characteristic, and wherein the first and the second stabilizer halves can be hydraulically coupled such that they can rotate relative to each other about their longitudinal axis by means of a hydraulic actuator, whereby the stabilizer is operable using at least one second spring characteristic. The actuator comprises at least two work chambers which are filled with a hydraulic medium and coupled to each other by a fluid-conducting connection, and the actuator comprises a transmission unit which is designed such that a rotational movement of the stabilizer halves can be converted into a translational movement of an intermediate element arranged between the two work chambers, and a volume flow of the hydraulic medium from the one work chamber into the other work chamber can thus be produced.

IPC Classes  ?

• B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper
• B60G 17/02 - Spring characteristics
• B60G 17/08 - Characteristics of fluid dampers
• B60G 21/055 - Stabiliser bars

Abstract

The invention relates to a stabilizer assembly for a two-track vehicle, comprising: a first and a second stabilizer section (3, 4); a spring element (5) between the stabilizer sections (3, 4); a hydraulic actuator (6) with an outer actuator part (7) and an inner actuator part (8), each of which is rotationally fixed to one of the stabilizer sections (3, 4); and an intermediate element (9) which is connected to the outer actuator part and the inner actuator part (7, 8) via outer and inner engagement means (18, 19), respectively. One of the engagement means (18, 19) has an inclined component in the axial direction and the other runs parallel to the longitudinal axis such that a relative rotational movement of the actuator parts (7, 8) is converted into an axial movement of the intermediate element (9), wherein the intermediate element (9) applies pressure to a first or second hydraulic chamber (20, 21), and the hydraulic chambers (20, 21) are hydraulically connected together with the interposition of a control element (22).

IPC Classes  ?

• B60G 11/30 - Resilient suspensions characterised by arrangement, location, or kind of springs having fluid springs only, e.g. hydropneumatic springs having pressure fluid accumulator therefor, e.g. accumulator arranged in vehicle frame
• B60G 11/64 - Resilient suspensions characterised by arrangement, location, or kind of springs having springs of different kinds not including leaf springs having both torsion-bar springs and fluid springs
• B60G 17/02 - Spring characteristics
• B60G 21/055 - Stabiliser bars

Abstract

The invention relates to a method for producing coated steel strip, comprising: heating a steel strip (2) made of a hardenable steel to a strip target temperature (T3) of less than 625°C, and hot-dip coating the steel strip (2), heated to the strip target temperature (T3), in a melt (4) which contains at least aluminium and silicon, wherein the melt (4) has a temperature (T4) of less than 620°C. The invention also relates to a method for producing a hardened steel product from the specified method and to a hot-formed part (42) produced therefrom.

IPC Classes  ?

• C22C 38/02 - Ferrous alloys, e.g. steel alloys containing silicon
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C22C 38/06 - Ferrous alloys, e.g. steel alloys containing aluminium
• C22C 38/28 - Ferrous alloys, e.g. steel alloys containing chromium with titanium or zirconium
• C22C 38/32 - Ferrous alloys, e.g. steel alloys containing chromium with boron
• C23C 2/12 - Aluminium or alloys based thereon
• C23C 2/40 - PlatesStrips
• C21D 1/18 - HardeningQuenching with or without subsequent tempering
• C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
• C23C 2/26 - After-treatment

Abstract

A shaft assembly comprises: a hollow shaft with an axis of rotation, and a hub body connected to the hub body in a force-locking manner, wherein the hollow shaft comprises, viewed in cross-section, a circumferentially closed wall with a plurality of circumferentially distributed support portions in abutting contact with the hub body and with spring portions spaced from an inner circumferential face of the hub body, wherein inner surface regions of the spring portions lie on a smaller radius around the axis of rotation than inner face regions of the support portions, wherein the wall comprises a varying thickness over the circumference, wherein the thickness in the support portions is smaller than in the spring portions.

IPC Classes  ?

• F16D 1/072 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving plastic deformation
• F16D 1/08 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with clamping hubCouplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end with hub and longitudinal key
• F16D 1/10 - Quick-acting couplings in which the parts are connected by simply bringing them together axially
• F16D 1/12 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements allowing adjustment of the parts about the axis

Abstract

A belt tensioning device includes a first tensioning arm mounted on a base body pivotably about a first pivot axis and includes a rotatable first tensioning roller. A second tensioning arm is pivotably mounted relative to the base body about a second pivot axis and includes a rotatable second tensioning roller. Via a spring arrangement between the first tensioning arm and the second tensioning arm, the first and second tensioning arms are resiliently supported against one another in the circumferential direction. A damping mechanism is operatively arranged between the base body and the first tensioning arm for damping relative rotational movement between the first tensioning arm and the base body. The damping mechanism generates a varying damping torque dependent on the rotational position and/or rotational direction of the first tensioning arm relative to the base body upon pivoting of the first tensioning arm relative to the base body.

IPC Classes  ?

• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
• F16H 7/08 - Means for varying tension of belts, ropes, or chains

Abstract

wherein a pressure sensor is arranged in the hydraulic drive for determining the hydraulic pressure.

IPC Classes  ?

• B21B 37/50 - Tension controlCompression control by looper control
• B21B 39/08 - Braking or tensioning arrangements

Abstract

A method for dynamic roll gap control for flexible rolling of metallic strip material can include: defining a nominal thickness profile with defined nominal corner points and with profile sections lying in between, wherein two profile sections adjoining a nominal corner point each have different average gradients; flexible rolling of the strip material according to the nominal thickness profile; measuring an actual thickness profile of the flexibly rolled strip material; determining actual corner points corresponding to the nominal corner points and actual intermediate points corresponding to the nominal intermediate points; determining corner point comparison values from the nominal corner points and the corresponding actual corner points, as well as intermediate point comparison values from the nominal intermediate points with the corresponding actual intermediate points; controlling a roll gap depending on the corner point comparison values and the intermediate point comparison values.

IPC Classes  ?

• B21B 37/26 - Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
• B21B 38/04 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product

Abstract

A roll stand with at least one working roll for rolling strip material and with a hydraulic arrangement for controlling a roll gap of the roll stand, comprises at least one hydraulic adjustment unit for adjusting the roll gap, the hydraulic adjustment unit comprising a cylinder and an adjusting piston dividing the cylinder into a first chamber and a second chamber; a first double-acting valve arrangement and a second double-acting valve arrangement which are each connected to the first chamber and the second chamber for variable control of the adjusting unit, wherein the second double-acting valve arrangement is connected in parallel with the first valve arrangement and has a larger nominal volume flow than the latter; and wherein the adjusting unit can be pressurized with an working pressure of more than 200 bar.

IPC Classes  ?

• B21B 37/62 - Roll-force controlRoll-gap control by control of a hydraulic adjusting device
• B21B 37/26 - Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
• B21B 38/02 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips
• B21B 38/04 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
• B21B 31/32 - Adjusting rolls by moving rolls perpendicularly to roll axis by liquid pressure

Abstract

The invention relates to a system for processing metal strip material, comprising: a feeding unit (3) for feeding strip material (4); a strip driving apparatus (5, 5') having at least one controllable traction means drive unit (10, 10') with a support (17) and a motor (13, 13'), a drivable continuous traction means (14, 14') and a pressing unit (11, 11'), wherein the power of the motor (13, 13') and the pressing force (F1, F2, F5, F6) of the pressing unit (11, 11') can be variably controlled; a rolling apparatus (6) for flexible rolling; a measuring apparatus (7, 35, 36) for recording a physical variable (F4, F6, s) of a component acting on the strip material (4); wherein the drive power of the motor (13, 13') can be controlled on the basis of the physical variable (F4, F6, s) determined by the measuring apparatus (7, 35, 36). The invention further relates to a corresponding method for processing strip material.

IPC Classes  ?

• B21B 37/48 - Tension controlCompression control
• B21B 37/26 - Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness

Abstract

Small electrical vehicles, such as, for example, multi-wheeled electrically assisted scooters, have simple chassis, and therefore bumps in the carriageway, such as paving stones or kerbs, represent an obstacle. A full-featured chassis, as in cars, is too expensive for this application. There is the need for a chassis specially designed for small electrical vehicles. A chassis for small electrical vehicles is disclosed which provides the possibility of inclining and of steering the vehicle and of damping bumps in the carriageway, the chassis comprising a frame connection (4) to the vehicle frame (2), a rigid or damped tilting support structure (5), a central bolt (7), a flexible transverse link plate (8), two uprights (9) for keeping hold of the two front wheels (1), and two steering rods (10) which each connect one of the two uprights (9) to the steering device (3). The area of use comprises multi-wheeled small vehicles.

IPC Classes  ?

• B62K 3/00 - Bicycles
• B62K 5/05 - Tricycles characterised by a single rear wheel
• B62K 5/08 - Cycles with handlebars, equipped with three or more main road wheels with steering devices acting on two or more wheels
• B62K 5/10 - Cycles with handlebars, equipped with three or more main road wheels with means for inwardly inclining the vehicle body on bends

Abstract

The invention relates to a housing arrangement for receiving electrical storage means for an electrically powered motor vehicle, comprising: a frame (5), which comprises a plurality of frame elements (31, 32, 33, 34) made of a metallic material, at least one of the frame elements (31, 32, 33, 34) having a variable sheet thickness over a longest edge; a base (4), which is connected to the frame (5) in such a way that a sealed trough is formed; and a lid (6), which is separably connectable to the frame (5), with the base (4), the frame (5) and the lid (6) enclosing a receiving space for electrical storage means (3), the base (4) having an integrated cooling structure, through which a coolant can flow.

IPC Classes  ?

• H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
• H01M 10/613 - Cooling or keeping cold
• H01M 10/625 - Vehicles
• H01M 10/6556 - Solid parts with flow channel passages or pipes for heat exchange

Abstract

A tensioning device for a traction drive comprises: a base member; at least one tensioning arm pivotably supported on the base member around a pivot axis, with a tensioning roller which is rotatably supported on a bearing carrier of the tensioning arm; spring means for resiliently loading the tensioning arm, wherein the spring means extend between a first spring support of the tensioning arm and a second spring support of the tensioning device over a circumferential length around the pivot axis; an adjusting mechanism for adjusting the first spring support relative to the bearing carrier of the tensioning roller in circumferential direction about the pivot axis. A method includes adjusting the torque of the tensioning device.

IPC Classes  ?

• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
• F16H 7/08 - Means for varying tension of belts, ropes, or chains

Abstract

The invention relates to a housing assembly for receiving electrical storage means for powering a motor vehicle that can be electrically powered, comprising a base (4), a frame (5) and a cover (6) which can be at least connected to one another and form a receiving space for electrical storage means (3), wherein the base (4) has at least three integrally connected sheet elements (9, 10, 11) made of a metal material, of which a lateral first sheet element (9) has a first average thickness (D9m), a lateral second sheet element (10) has a second average thickness (D10m), and a central third sheet element (11) has a third average thickness (D11), wherein the third average thickness (D11) differs from the first and second average thickness (D9m, D10m).

IPC Classes  ?

• H01M 2/10 - Mountings; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
• B21B 37/26 - Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
• H01M 10/625 - Vehicles
• H01M 10/655 - Solid structures for heat exchange or heat conduction

Abstract

The invention relates to a stabilizer assembly for a two-track vehicle for stabilizing a rolling movement, the stabilizer assembly being operable on at least two different load-deflection curves, comprising a first and a second stabilizer half, each coupled to a wheel of the vehicle, wherein the first and the second stabilizer halves are coupled such that they can rotate relative to each other about their longitudinal axis by means of a spring element, whereby the stabilizer is operable with a first load-deflection curve, and wherein the first and the second stabilizer halves can be hydraulically coupled such that they can rotate relative to each other about their longitudinal axis by means of a hydraulic actuator, whereby the stabilizer is operable using at least one second load-deflection curve. The actuator comprises at least two work chambers which are filled with a hydraulic medium and coupled to each other by a fluid-conducting connection, and the actuator comprises a transmission unit which is designed such that a rotational movement of the stabilizer halves can be converted into a translational movement of an intermediate element arranged between the two work chambers, and a volume flow of the hydraulic medium from the one work chamber into the other work chamber can thus be produced.

IPC Classes  ?

• B60G 21/055 - Stabiliser bars
• B60G 15/06 - Resilient suspensions characterised by arrangement, location, or type of combined spring and vibration- damper, e.g. telescopic type having mechanical spring and fluid damper
• B60G 17/08 - Characteristics of fluid dampers

Abstract

A disc pack coupling for torque transmission between shafts has coupling discs. A locking unit is provided that maintains a contact pressure acting on the coupling discs when the disc pack coupling is closed. The locking unit has a locking part, a guide part, an actuating element, and a pressure element. The guide part is non-rotatably and non-displaceably arranged in relation to a first shaft. The locking part has a locking part axis and is rotatable about and displaceable axially relative to the locking part axis. Locking part and guide part are provided with interacting control surfaces positioned at a slant to a rotational direction of the locking part. The control surfaces are provided to move the locking part into a first and a second stop position. In the first stop position, the locking part maintains the contact pressure on the coupling discs.

IPC Classes  ?

• F16D 13/75 - Features relating to adjustment, e.g. slack adjusters
• F16D 23/12 - Mechanical clutch-actuating mechanisms arranged outside the clutch as such
• F16D 13/52 - Clutches with multiple lamellae
• F16D 25/08 - Fluid-actuated clutches with fluid-actuated member not rotating with a clutching member

Abstract

The invention relates to an axial spring ring for separating plates in a multi-plate clutch, having circumferentially distributed ring segment portions (4) and offsets (5, 6), wherein the ring segment portions (4) define a plane (E), and the offsets (5, 6) of the ring segment portions (4) are bent out of the plane (E) and are elastically deformable in the direction of the plane under axial action of force, wherein the axial spring ring (2) is produced from a wire which is bent to form a ring and which is joined in a circumferential region of an offset (5, 6). The invention further relates to a multi-plate clutch (23) having such an axial spring ring.

IPC Classes  ?

• F16D 13/69 - Arrangements for spreading lamellae in released state
• F16D 25/0638 - Fluid-actuated clutches in which the fluid actuates a piston incorporated in the clutch the clutch having friction surfaces with clutch members exclusively moving axially with flat friction surfaces, e.g. discs with more than two discs, e.g. multiple lamellae

Abstract

The invention relates to a shaft assembly, comprising: a hollow shaft (3), which has an axis of rotation (B); and a hub body (4), which is frictionally connected to the hollow shaft (3), wherein: the hollow shaft (3) has, in cross-section, a peripherally closed wall (5) having a plurality of supporting portions (6) distributed over the periphery, which lie in contact with the hub body (4), and spring portions (7), which are spaced apart from an inner peripheral surface of the hub body (4); inner surface regions of the spring portions (7) lie on a smaller radius around the axis of rotation (B) than inner surface regions of the supporting portions (6); the wall (5) has a variable thickness (d5) over the periphery; the thickness (d6) in the supporting portions (6) is less than the thickness in the spring portions (7).

IPC Classes  ?

• F16D 1/072 - Couplings for rigidly connecting two coaxial shafts or other movable machine elements for attachment of a member on a shaft or on a shaft-end non-disconnectable involving plastic deformation

Abstract

Apparatus for controlling a strip tension during the flexible rolling of metal strip, wherein the device comprises the following: a roll arrangement (11, 17) with at least one dancer roll (12, 18), the position of which is adjustable for controlling the strip tension of the metal strip (8), at least one hydraulic drive (22), which is coupled to the dancer roll (12, 18) for adjusting the same, a hydraulic tank (27) for hydraulic fluid, which is connected to the hydraulic drive in a fluid-conducting manner by way of a hydraulic feed line (38), a controllable valve arrangement (29) between the hydraulic tank (27) and the hydraulic drive (22) for controlling the hydraulic drive (22), a hydraulic pump (28), with which the hydraulic drive (22) is supplied with hydraulic fluid from the hydraulic tank (27), and at least one hydraulic pressure accumulator (33) for buffer-storing hydraulic fluid delivered in advance by the hydraulic pump (28), wherein the hydraulic pressure accumulator (33) is arranged between the hydraulic pump (28) and the valve arrangement (29), wherein a pressure sensor (36) for determining the hydraulic pressure is arranged in the hydraulic drive (22).

IPC Classes  ?

• B21B 39/08 - Braking or tensioning arrangements

Abstract

The invention relates to a method for producing a hardened steel product, comprising the steps: providing a steel substrate (2) made of a hardenable steel; coating the steel substrate (2) with an aluminum pre-coating (4), the pre-coating (4) being applied to the steel substrate (2) with a thickness (d1) of at least 34 μm; flexibly rolling the pre-coated steel substrate (2) in order to produce a variable thickness over the length of the pre-coated steel substrate (2), the pre-coating being rolled out to a reduced first thickness (d2a) of less than 33 μm in thinner first portions and to a reduced second thickness (d2b), which is thicker than the reduced first thickness (d2a), in thicker second portions; creating a blank (22) from the flexibly rolled steel substrate (2); heating the blank (22) to the austenitization temperature, diffusion processes between the base material and the pre-coating (4) occurring; and hot-forming (S4) the heated blank (22), the heated blank (22) being formed and being quickly cooled in such a way that a hardened steel product (42) having a coating is produced.

IPC Classes  ?

• C21D 1/673 - Quenching devices for die quenching
• B21B 37/24 - Automatic variation of thickness according to a predetermined programme
• B21B 37/26 - Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
• C23C 2/12 - Aluminium or alloys based thereon

Abstract

The invention relates to a method for avoiding strips sticking on flexibly rolled metal strip, wherein after flexible rolling (S10), a metal strip (2) is wound to form a coil (3) and is subject to thermal treatment (S40), wherein before thermal treatment (S40), the flexibly rolled metal strip (2) is wound at least in an annular section (13) of the coil (3) with a winding tension (F13) of less than 40 N/mm² in relation to a cross-section area (A) of the metal strip (2).

IPC Classes  ?

• B21C 47/00 - Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
• B21B 37/26 - Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
• C21D 1/74 - Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material

Abstract

A B-pillar for a motor vehicle body extends along a longitudinal axis, and comprises an upper metal portion for connecting the B-pillar to a roof area of the motor vehicle body and a lower metal portion for connecting the B-pillar to a sill area of the motor vehicle body; and a fiber composite component comprising fibers and a plastic matrix, the upper metal portion comprising an upper region for force introduction, and the lower metal portion comprising a lower region for force introduction being axially spaced from the upper region for force introduction, the upper region for force introduction and the lower region for force introduction being embedded into the fiber composite component.

IPC Classes  ?

• B62D 25/04 - Door pillars
• B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
• B62D 25/06 - Fixed roofs
• B62D 29/00 - Superstructures characterised by material thereof

Abstract

The invention relates to a method for producing a product made of a flexibly rolled metal strip material, having the steps of: supplying (S10) a flexibly rolled strip material (3); ascertaining (S20) a measurement thickness profile of the strip material over the length of the strip material and calculating a target cutting position (P30) for a blank (4) to be produced from the strip material; separating (S30) a blank (4) from the strip material (3) in the target cutting position; rotating (S40) the blank (4) on the basis of the ascertained measurement thickness profile such that the thickness profile of the blank (4) is aligned in a defined machining position (P50) that differs from the target cutting position; and machining (S50) the blank (4) in the machining position (S50) using a machining unit (50), wherein the blank (4) is machined into a product (5). The invention additionally relates to a system for producing a product.

IPC Classes  ?

• B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
• B21B 15/00 - Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
• B21B 38/04 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
• B21D 43/02 - Advancing work in relation to the stroke of the die or tool

Abstract

The invention relates to a method for dynamic nip control during flexible rolling of metallic strip material, having the following steps: specifying (V10) a target thickness profile (1) having defined target corner points (E) and profile sections (2', 2'', 3', 3'') therebetween, each pair of profile sections which adjoin at a target corner point having different average gradients; flexibly rolling (V40) the strip material (11) according to the target thickness profile (1); measuring (V50) an actual thickness profile (14) of the flexibly rolled strip material (11'); determining (V60) actual corner points (E') corresponding to the target corner points (E) and actual intermediate points (S') corresponding to the target intermediate points (S); determining (V70) corner point comparative values (ΔD, ΔL) from the target corner points (E) and the corresponding actual corner points (E') and intermediate point comparative values (ΔD', ΔL') from the target intermediate points (S) and the corresponding actual intermediate points (S'); controlling (V80) a nip (12) in accordance with the corner point comparative values (ΔD, ΔL) and the intermediate point comparative values (ΔD', ΔL').

IPC Classes  ?

• B21B 37/26 - Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness

Abstract

The invention relates to a roll stand, having at least one working roll for rolling strip material and having a hydraulic assembly for controlling a nip of the roll stand, comprising: at least one hydraulic positioning unit (1) for setting the nip (19), the hydraulic positioning unit (1) comprising a cylinder (17) and a positioning piston (2), which divides the cylinder (17) into a first chamber (3) and a second chamber (4); a first double-acting valve assembly (9) and a second double-acting valve assembly (10, 10'), which are each connected to the first chamber (3) and to the second chamber (4) in order to variably control the positioning unit (1), wherein: - the second double-acting valve assembly (10, 10') is connected in parallel with the first valve assembly (9) and has a greater nominal volumetric flow rate than the first valve assembly; and - a working pressure of greater than 200 bar can be applied to the positioning unit (1). The invention further relates to a corresponding method for controlling a nip in the rolling process.

IPC Classes  ?

• B21B 31/32 - Adjusting rolls by moving rolls perpendicularly to roll axis by liquid pressure
• B21B 37/62 - Roll-force controlRoll-gap control by control of a hydraulic adjusting device

Abstract

The invention relates to a system and method for separating flexibly rolled strip material, comprising: a storage device (9) for temporarily storing the flexibly rolled strip material (3); a first feed device (15) behind the storage device (9); at least one length measuring device (16) for continuously measuring a length (L3) of the strip material (3); a thickness measuring device (14) for continuously measuring a thickness (D3) of the strip material (3) along the length (L3); a second feed device (17) behind the first feed device (15); a separation device (19) behind the second feed device (17); wherein the first and second feed devices (15, 17) are designed to move the strip material (3) from the storage device (9) to the separation device (19) in accordance with the thickness measurement and the length measurement; wherein the thickness measuring device (14) is positioned between the storage device (9) and the first feed device (15); and wherein the length measuring device (16) is positioned behind the first feed device (15).

IPC Classes  ?

• B21B 15/00 - Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills

Abstract

A housing assembly for electrical storage means for a drive of an electrically powered motor vehicle comprises a tray arrangement, into which electrical storage means can be inserted, and a cover arrangement, which can be placed on the tray arrangement and can be releasably connected thereto, wherein the tray arrangement and/or the cover arrangement has a first formed part and a second formed part, each having a base and side walls; said first formed part and said second formed part being arranged adjacent to each other and joined together in a longitudinally extending joining region; said first formed part and said second formed part each being made of flexibly rolled steel sheet so as to have a variable sheet thickness in the longitudinal direction of the respective formed part.

IPC Classes  ?

• B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
• B60K 1/04 - Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
• H01M 50/20 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders
• H01M 50/24 - MountingsSecondary casings or framesRacks, modules or packsSuspension devicesShock absorbersTransport or carrying devicesHolders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
• H01M 50/258 - Modular batteriesCasings provided with means for assembling

Abstract

A structural component for a motor vehicle body comprises: an outer panel with an outer wall and two outer flange portions; an inner panel with an inner wall and two inner flange portions; a reinforcing profile with a profile base, two profile walls opposite one another and two connecting portions connected thereto; wherein, in an upper pillar section, a maximum profile height of the reinforcing profile is greater than a maximum profile height of the outer panel, wherein the connecting portions of the reinforcing profile are supported against the inner wall, and wherein the connecting portions of the reinforcing profile are supported against the inner wall, and wherein the outer flange portions and the inner flange portions directly abut one another and are fixed to one another, wherein the connecting portions of the reinforcing profile are fixed, at least in a lower section of the structural component, between the outer flange portions and the inner flange portions.

IPC Classes  ?

• B62D 25/04 - Door pillars
• B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body

Abstract

A tensioning device for tensioning a traction mechanism of a belt drive comprises a base member; a first tensioning arm pivotably supported on the base member and carrying a first tensioning roller; a second tensioning arm pivotably supported on the base member and carrying a second tensioning roller; a spring arrangement with first and second springs arranged to be effective between the first and second tensioning arms; wherein the two tensioning arms, when being pivoted relative to each other within a first tensioning angle range, are force-loaded against each other by the first spring, wherein the second spring is force-free relative at least to one of the tensioning arms; and wherein the tensioning arms, when being pivoted relative to each other within a second tensioning angle range comprising larger tensioning angles than the first tensioning angle range, are force-loaded against each other by the first spring and the second spring.

IPC Classes  ?

• F16H 7/14 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of a driving or driven pulley
• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
• F16H 7/08 - Means for varying tension of belts, ropes, or chains

Abstract

A belt tensioning device comprises: a base member; a first tensioning arm, which is pivotably supported by a bearing sleeve on the base member around a first pivot axis and which comprises a first tensioning roller, wherein the bearing sleeve is configured radially elastically and is connected to one of the components, the base member and the first tensioning arm in a rotationally fixed manner, and which is rotatable relative to the other of the components, the base member and the tensioning arm a second tensioning arm, which is pivotably supported on the base member around a second pivot axis and comprises a second tensioning roller; a spring arrangement that pre-tensions the first tensioning arm and the second tensioning arm in circumferential direction relative to each other; pre-tensioning means, which that are arranged radially between a circumferential face of the bearing sleeve and a circumferential face of the component connected to the bearing sleeve to exert a radial force in direction relative to the component rotatable thereto.

IPC Classes  ?

• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
• F16H 7/08 - Means for varying tension of belts, ropes, or chains

Abstract

The invention relates to a method and a device for ascertaining the flatness of transported strip material, having the steps of: moving the strip material (3) through a strip machining device, wherein a tensile force (Fx) of at least 10 N/mm2 is applied to the strip material (3); generating at least one projection pattern (5, 5') in the shape of a projection grid on the surface (6) of the strip material (3) by means of a projection-producing optical system (4, 4'), said projection pattern (5, 5') being projected onto the surface (6) of the strip material (3) from a position (P) which is laterally offset to the central plane (M) of the strip material (3), such that a projection angle (a) formed between the surface (6) of the strip material (3) and a projection beam (9) equals between 1° and 45°; and detecting the projection pattern (5, 5') by means of a camera (7), said camera (7) being arranged on a transverse plane (E) above the strip material (3) when viewed in the movement direction (X).

IPC Classes  ?

• B21B 38/02 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips

Abstract

The invention relates to a clamping device (2) for a traction drive, comprising: a base element (3); at least one clamping arm (4, 6), which is swivel-mounted about a swivel axis (A4, A6) relative to the base element (3) and has a tension pulley (5, 7), which is rotatably mounted on a bearing carrier (17) of the clamping arm (4, 6); spring means (8) for spring-loading the clamping arm (4, 6), wherein the spring means (8) extend between a first spring support (9) of the clamping arm (4) and a second spring support (10) of the clamping device (2) about the swivel axis (A4, A6), wherein the clamping device (2) furthermore has an adjustment mechanism (11) for adjusting the first spring support (9) in relation to the bearing carrier (17) of the tension pulley (5) in the circumferential direction about the swivel axis (A4, A6).

IPC Classes  ?

• F16H 7/10 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley
• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley

Abstract

A process includes flexible rolling of a strip made of a metallic material, wherein a thickness profile with different sheet thicknesses along the length of the strip is produced such that successive regions of the flexibly rolled strip each correspond to a target thickness profile of a sheet metal blank to be cut out of same; determining a measured thickness profile of a plurality of successive regions of the strip; calculating a target position in the strip for a sheet metal blank to be cut out of the strip depending on the generated measured thickness profile of at least two successive regions of the strip; cutting the flexibly rolled strip by at least one cutting device along the target position for producing the sheet meal blank. A plant is further provided for producing a sheet metal blank.

IPC Classes  ?

• B21B 37/16 - Control of thickness, width, diameter or other transverse dimensions
• B21B 38/04 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
• B21D 28/06 - Making more than one part out of the same blankScrapless working
• B21B 15/00 - Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
• B21B 37/26 - Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness

Abstract

The invention relates to a structural component for a vehicle body, comprising: an outer panel (3) with an outer wall (7) and two outer flange sections (9, 9'); an inner panel (4) with an inner wall (10) and two inner flange sections (12, 12'); a reinforcing profile (5) with a profile bottom (13), two opposing profile walls (14, 14'), and two connection sections (15, 15') connected thereto; wherein, in an upper pillar region (Pa), a maximum profile height (H5) of the reinforcing profile (5) is higher than a maximum profile height (H3) of the outer panel (3), the connection sections (15, 15') of the reinforcing profile (5) are supported against the inner wall (10) and the outer flange sections (9, 9') and the inner flange sections (12, 12') directly abut and are fixed to each other, and the connecting sections (15, 15') of the reinforcing profile (5), at least in a lower region (Pc) of the structural component (2), are fixed between the outer flange sections (9, 9') and the inner flange sections (12, 12').

IPC Classes  ?

• B62D 25/04 - Door pillars
• B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body

Abstract

A B-pillar for a motor vehicle body comprises a sheet metal formed part having a head portion, a central portion and a base portion, and an inner side and an outer side. The head portion, on the inner side, comprises a connecting region for connection to a roof region of the motor vehicle body. The base portion can connect to a sill region. The central portion extends between the head portion and the base portion and defines a longitudinal direction of the B-pillar. The sheet metal formed part comprises a hat profile such that on the inner side a hollow chamber is formed; and a fiber composite part having an upper portion, a central portion and a lower portion, wherein the upper portion comprises a contact region that laterally embraces a supporting region and is supported against same in the longitudinal direction.

IPC Classes  ?

• B62D 29/00 - Superstructures characterised by material thereof
• B62D 25/04 - Door pillars
• B62D 21/15 - Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body

Abstract

The invention relates to a leaf spring arrangement for a motor vehicle, comprising: a leaf spring (1) made of a fiber-plastics composite and an attachment device (2) for attaching a chassis component of the motor vehicle to the leaf spring (1), wherein the attachment device (2) comprises a lower clamping element (5) which bears against a lower contact surface (15) of the leaf spring (1) and an upper clamping element (3) which bears against an upper contact surface (13) of the leaf spring (1), and first connecting means (4) and second connecting means (6) which brace the lower clamping element (5) against the upper clamping element (3) with the leaf spring (1) lying therebetween, wherein the first connecting means (4) and the second connecting means (6) are mutually spaced in a longitudinal direction and at least one of the lower and upper clamping elements (3) has micro-toothing (25) in a middle portion (17) which forms an interlocking connection with the leaf spring (1), and outer portions (19, 21) which bear against the leaf spring (1).

IPC Classes  ?

• B60G 11/113 - Mountings on the axle
• F16F 1/368 - Leaf springs

Abstract

A device for transporting elongated metal material comprises two chain drive units with a continuous chain, which are arranged such that the elongated material is passed through between the chains with frictional contact so that the elongated material is moved; two controllable pressure units configured to apply pressure forces to the chains towards each other; at least one controllable adjusting unit which is mechanically connected to at least one of the chain drive units and which is configured to move same in a longitudinal direction of the elongated material during operation. A plant can have such a device, and a process is used for controlling such a device.

IPC Classes  ?

• B65G 15/14 - Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface with two or more endless belts the load being conveyed between the belts
• B65G 21/20 - Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
• B65G 21/12 - Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors movable, or having interchangeable or relatively- movable partsDevices for moving framework or parts thereof to allow adjustment of position of load-carrier or traction element as a whole
• B21D 43/00 - Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profilesAssociations therewith of cutting devices
• B21D 43/12 - Advancing work in relation to the stroke of the die or tool by means in mechanical engagement with the work by chains or belts
• B21C 1/30 - Drives, e.g. carriage-traversing mechanismsDriving elements, e.g. drawing chainsControlling the drive
• B65H 51/14 - Aprons, endless belts, lattices, or like driven elements
• B21C 47/34 - Feeding or guiding devices not specially adapted to a particular type of apparatus

Abstract

A leaf spring for a wheel suspension of a motor vehicle, comprises a first spring part made from a fiber reinforced plastic material and a second spring part made from a steel material. The first spring part and the second spring part are connected to each other. The ratio of the length of the first spring part to the length of the second spring part is larger than two. A leaf spring assembly can include such a leaf spring and receiving devices.

IPC Classes  ?

• B60G 11/04 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only arranged substantially parallel to the longitudinal axis of the vehicle
• B60G 11/10 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
• F16F 3/10 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
• F16F 1/368 - Leaf springs
• B60G 11/02 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only

Abstract

A process includes flexible rolling of a strip made of a metallic material, wherein a thickness profile with different sheet thicknesses along the length of the strip is produced such that successive regions of the flexibly rolled strip each correspond to a target thickness profile of a sheet metal blank to be cut out of same; determining a measured thickness profile of a plurality of successive regions of the strip; calculating a target position in the strip for a sheet metal blank to be cut out of the strip depending on the generated measured thickness profile of at least two successive regions of the strip; cutting the flexibly rolled strip by at least one cutting device along the target position for producing the sheet meal blank. A plant is further provided for producing a sheet metal blank.

IPC Classes  ?

• B21B 37/16 - Control of thickness, width, diameter or other transverse dimensions
• B21B 38/04 - Methods or devices for measuring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring thickness, width, diameter or other transverse dimensions of the product
• B21D 28/06 - Making more than one part out of the same blankScrapless working
• B21B 15/00 - Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
• B21B 37/26 - Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness

Abstract

A belt tensioning device comprises a base member; at least one tensioning arm which, relative to the base member, is pivotably supported around a pivot axis; a tensioning roller for tensioning the belt; a spring for resiliently supporting the tensioning arm; and a connecting assembly for connecting the tensioning arm to the base member, wherein the connecting assembly comprises at least two base member connecting portions and at least two tensioning arm connecting portions which are connected to one another by an insertion and rotational movement; wherein, between a first base member connecting portion and a first tensioning arm connecting portion a first contact surface region is formed which is greater than a second contact surface region which is formed between a second base member connecting portion and a second tensioning arm connecting portion.

IPC Classes  ?

• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
• F16H 7/08 - Means for varying tension of belts, ropes, or chains

Abstract

The present invention relates to an accessory drive belt tensioner for use in an engine for motor vehicles, comprising a base, a tensioner arm and a pulley mounted on the tensioner arm, wherein the base and the tensioner arm are arranged in a pivotal arrangement, the base and the tensioner arm are tension loaded and the pivotal arrangement confines a space being aimed for receiving a generator pulley, wherein the tensioner arm is made of a specific thermally conductive plastic composition; comprises cooling fins, the cooling fins being positioned in the vicinity of, or at least partially inside the space confined by the pivotal arrangement; and comprises a bearing surface part, for sliding contact with the base (A) within the pivotal arrangement, consisting of metal.

IPC Classes  ?

• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley

Abstract

A B-pillar for a motor vehicle body has an inner panel made of sheet metal material and a multi-component outer panel connected to the inner panel. The outer panel comprises a lower formed part made of sheet metal material and an upper formed part made of fiber reinforced plastic, which two formed parts are arranged along a region of overlap so as to overlap one another and are connected to one another such that the lower formed part projects from the upper formed part beyond the upper formed part beyond the region of overlap in a first direction of longitudinal extension of the B-pillar and that the upper formed part projects from the lower formed part beyond the region of overlap in a second direction of longitudinal extension of the B-pillar.

IPC Classes  ?

• B62D 25/04 - Door pillars
• B62D 29/00 - Superstructures characterised by material thereof
• B62D 29/04 - Superstructures characterised by material thereof predominantly of synthetic material

Abstract

A stabilizer bar for a chassis of a motor vehicle comprises a torsion spring portion and two arms bent away from the torsion spring portion; wherein the arms each comprise a formed end portion with a through-opening and a tubular portion, wherein the torsion spring portion comprises a hardened structure with a strength of at least 1000 MPa; and wherein the formed end portions comprise a hardened structure with a strength of at least 800 MPa. A process of producing a corresponding stabilizer is further disclosed.

IPC Classes  ?

• B60G 17/005 - Suspension locking arrangements
• B60G 21/055 - Stabiliser bars
• B21D 53/88 - Making other particular articles other parts for vehicles, e.g. cowlings, mudguards
• B21C 37/08 - Making tubes with welded or soldered seams
• B23K 31/02 - Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by any single one of main groups relating to soldering or welding
• B60G 11/18 - Resilient suspensions characterised by arrangement, location, or kind of springs having torsion-bar springs only
• C21D 1/18 - HardeningQuenching with or without subsequent tempering
• C21D 9/08 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for tubular bodies or pipes
• C22C 38/04 - Ferrous alloys, e.g. steel alloys containing manganese
• C21D 9/00 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor
• B23K 101/06 - Tubes
• B23K 103/04 - Steel alloys
• C21D 1/10 - Surface hardening by direct application of electrical or wave energySurface hardening by particle radiation by electric induction
• C21D 1/42 - Induction heating
• C21D 1/25 - Hardening, combined with annealing between 300 °C and 600 °C, i.e. heat refining ("Vergüten")
• C21D 1/673 - Quenching devices for die quenching

Abstract

The invention relates to a tensioning device for a traction drive, comprising a receiving housing, a roller carrier which is pivotably connected to the receiving housing, a helical tension spring which is supported at the receiving housing and at the roller carrier in circumferential and axial direction, wherein the roller carrier and the receiving housing are axially fixed relative to one another by the helical tension spring, a bearing arrangement by which the roller carrier is supported in the receiving housing so as to be rotatable around a rotational axis, a damping arrangement for damping a rotational movement of the roller carrier relative to the receiving housing, wherein the damping arrangement is arranged so as to be axially spaced from the bearing arrangement and is axially loaded by a tensile load of the helical tension spring.

IPC Classes  ?

• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
• F16H 7/08 - Means for varying tension of belts, ropes, or chains

Abstract

A spring assembly comprises a spring with a coating, a spring retainer made of plastic material, an adhesive layer by which the spring and the spring retainer are bounded adhesively to one another, wherein the hardness of the adhesive layer is lower than the hardness of the coating. Further, a process of producing such a spring assembly is provided.

IPC Classes  ?

• F16F 1/06 - Wound springs with turns lying in cylindrical surfaces
• F16F 1/12 - Attachments or mountings
• B60G 11/14 - Resilient suspensions characterised by arrangement, location, or kind of springs having helical, spiral, or coil springs only
• B29C 65/48 - Joining of preformed partsApparatus therefor using adhesives
• F16F 1/02 - Springs made of steel or other material having low internal frictionWound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
• B29L 31/00 - Other particular articles

Abstract

A leaf spring assembly for a wheel suspension of a motor vehicle comprises a leaf spring of fibre-reinforced plastics for resiliently supporting a wheel carrier of the motor vehicle. The leaf spring comprises a first end portion, a spring portion, a bendable portion and a second end portion. The leaf spring further comprises a first receiving device for supporting the first end portion and a second receiving device for supporting a second end portion. The first receiving device and the second receiving device are designed such that the first end portion and the second end portion are held in a non-displaceable way relative to one another. At least one of the first and second receiving devices are designed such that the respective associated end portion is supported in a moment-free way in the receiving device.

IPC Classes  ?

• B60G 11/02 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only
• B60G 11/04 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only arranged substantially parallel to the longitudinal axis of the vehicle
• F16F 1/368 - Leaf springs
• B60G 11/12 - Links, pins, or bushes

Abstract

A belt tensioning device comprises a base member having an attachment portion and an opening for a drive shaft; first and second tensioning arms that are pivotably supported by first and second bearings on the base member around first and second pivot axes and have first and second tensioning rollers 5, 7. A spring arrangement pretensions the two tensioning arms in a circumferential direction towards each other; wherein the spring arrangement has at least one bow-shaped spring that has a circumferential extension of less than 360° around the first and the second pivot axis; wherein the at least one bow-shaped spring has first and second support portions that are supported on the first and second tensioning arm as well as a spring portion extending between the first and second support portion; wherein the at least one bow-shaped spring has an axial length in the area of the first and the second support portion which is axially shorter than a total axial length of the bow-shaped spring.

IPC Classes  ?

• F16H 7/08 - Means for varying tension of belts, ropes, or chains
• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley

Abstract

2 of the second formed part 3; 23; 33, wherein the second formed part 3; 23; 33 has a connection portion 7; 27; 37 for being connected to the first formed part 2; 32; 42, wherein the connection portion 7; 27; 37 is distanced from an outer edge 13 of the first formed part 2; 32; 42 such, that the structural component 1; 21; 31; 41 has a one-layered flange portion 12 of the first formed part 2; 32; 42 between the connection portion 7; 27; 37 and the outer edge 13, and wherein the first formed part 2; 32; 42 and the second formed part 3; 23; 33 are connected to each other by means of a high energy beam welding seam 19 along a connection edge 18 of the connection portion 7; 17; 27. Furthermore, the present invention relates to a method for manufacturing a structural component 1; 21; 31; 41.

IPC Classes  ?

• B62D 25/04 - Door pillars
• B21D 47/01 - Making rigid structural elements or units, e.g. honeycomb structures beams or pillars
• B23K 15/00 - Electron-beam welding or cutting
• B62D 29/00 - Superstructures characterised by material thereof
• C21D 1/18 - HardeningQuenching with or without subsequent tempering

Abstract

A hardened formed part is manufactured with the steps: producing a blank from a hardenable strip material; heating of the blank to an austenitization temperature; forming and hardening of the blank to a hardened formed part; cleaning the hardened formed part; coating the hardened formed part with a metallic coating in an dipping bath with an electrolyte solution, wherein during the coating process, at least one auxiliary element is used in the dipping bath, such, that the deposition of the coating is partially influenced. A plant is used for manufacturing a hardened formed part.

IPC Classes  ?

• C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
• C21D 9/52 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for wiresHeat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for strips
• C21D 9/54 - Furnaces for treating strips or wire
• C23C 2/02 - Pretreatment of the material to be coated, e.g. for coating on selected surface areas
• C25D 5/34 - Pretreatment of metallic surfaces to be electroplated
• B32B 15/01 - Layered products essentially comprising metal all layers being exclusively metallic
• C25D 17/00 - Constructional parts, or assemblies thereof, of cells for electrolytic coating
• C25D 5/02 - Electroplating of selected surface areas
• C25D 5/16 - Electroplating with layers of varying thickness
• C25D 5/18 - Electroplating using modulated, pulsed or reversing current
• C25D 5/36 - Pretreatment of metallic surfaces to be electroplated of iron or steel
• C25D 17/12 - Shape or form

Abstract

The invention relates to a leaf spring for a wheel suspension of a motor vehicle, comprising a first spring part (3) made from fibre-reinforced plastic material and a second spring part (4) made from steel material, said first spring part (3) and the second spring part (4) being interconnected. The ratio of the length of the first spring part (3) to the length of the second spring part is greater than two. The invention also relates to a leaf spring assembly comprising said type of spring leaf and receiving devices.

IPC Classes  ?

• F16F 3/10 - Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of a material having high internal friction, e.g. rubber combined with springs made of steel or other material having low internal friction
• F16F 1/368 - Leaf springs
• B60G 11/04 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only arranged substantially parallel to the longitudinal axis of the vehicle
• B60G 11/10 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
• F16F 1/22 - Leaf springs with means for modifying the spring characteristic

Abstract

A formed and hardened component made from a metallic material is post-treated by a device for electric resistance heating that has at least one first pair of contact pieces and at least one second pair of contact pieces; contacting a first partial region of the component with the contact pieces of the first pair such that the first partial region is arranged between the contact pieces of the first pair; contacting the second partial region of the component with the contact pieces of the second pair such that the second partial region is arranged between the contact pieces of the second pair; heating of the first partial region of the component to a first temperature by conducting electric current through the component by the first pair of contact pieces; setting the second partial region of the component to a second temperature by the second pair of contact pieces, which is set independently of the first temperature.

IPC Classes  ?

• C21D 1/40 - Direct resistance heating
• C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
• C21D 8/04 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
• C21D 9/48 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for sheet metals deep-drawing sheets
• H05B 3/00 - Ohmic-resistance heating

Abstract

The invention relates to a leaf spring arrangement for a wheel suspension of a motor vehicle, comprising: a leaf spring (3) composed of fibre-reinforced plastics material for the resilient support of a wheel carrier of the motor vehicle, wherein the leaf spring (3) has a first end section (5), a spring suspension section (8), a bending section (10) and a second end section (7); a first receiving device (4) for the mounting of the first end section (5); a second receiving device (6) for the mounting of the second end section (7); wherein the first receiving device (4) and the second receiving device (6) are designed in such a manner that the first end section (5) and the second end section (7) are held in a displacement-resistant manner relative to each other; wherein at least one of the first and second receiving devices (4, 6) is designed in such a manner that the respectively associated end section (5, 7) is mounted in a torque-free manner in the receiving device (4, 6).

IPC Classes  ?

• F16F 1/368 - Leaf springs

Abstract

A belt tensioning device for a belt drive which comprises a driving machine with a driving belt pulley drivable by a driveshaft around a driving axis, and a plurality of further belt pulleys and with an infinite belt which is wrapped around the driving belt pulley and the further belt pulleys wherein the belt tensioning device comprises a housing in which two tensioning arms are supported so as to be pivotable around a common pivot axis, in which tensioning arms there are supported tensioning rollers with axes of rotation extending parallel to the driving axis, wherein the tensioning arms are supported relative to one another by spring means, wherein, with the driving belt pulley mounted at the driving machine, the housing can be mounted in that, in an annular region surrounding the driveshaft of the driving belt pulley, the housing is contact-free relative to the driving machine.

IPC Classes  ?

• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
• F16H 7/08 - Means for varying tension of belts, ropes, or chains

Abstract

The invention relates to a method for producing a product from rolled strip material, comprising the following steps: rolling a strip material made of sheet steel; creating a blank from the rolled material; shaping the blank into a shaped part; cleaning the shaped part in such a way that an amount of at most 0.7 ppm of diffusible hydrogen is introduced into the shaped part by the cleaning; and coating the shaped part with a metal coating material in order to produce a corrosion protection coating, wherein the coating is performed in an immersion bath having an electrolyte solution, wherein a flow is produced between the shaped part and the electrolyte solution.

IPC Classes  ?

• C25D 3/22 - ElectroplatingBaths therefor from solutions of zinc
• C25D 3/56 - ElectroplatingBaths therefor from solutions of alloys
• C25D 5/08 - Electroplating with moving electrolyte, e.g. jet electroplating
• C25D 5/18 - Electroplating using modulated, pulsed or reversing current
• C25D 5/36 - Pretreatment of metallic surfaces to be electroplated of iron or steel
• C25D 5/50 - After-treatment of electroplated surfaces by heat-treatment
• C25D 7/06 - WiresStripsFoils
• C25D 21/10 - Agitating of electrolytesMoving of racks
• B21B 37/26 - Automatic variation of thickness according to a predetermined programme for obtaining one strip having successive lengths of different constant thickness
• B21D 1/00 - Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefromStretching sheet metal combined with rolling

Abstract

A spring, especially for use in a belt tensioning device, with a number of at least 1.25 and at a maximum 2.5 coils, which extend around a spring axis A8, wherein a first coil end 42 has an axial offset Va relative to a first coil region 48, arranged at an angle of 360° around the spring axis A8, and wherein a second coil end 49 has an radial offset Vr relative to a second coil region 50 arranged at an angle of 360° around the spring axis A8. A belt tensioning device and an assembly with such a belt tensioning device include such a spring.

IPC Classes  ?

• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
• F16F 1/04 - Wound springs
• F16H 7/08 - Means for varying tension of belts, ropes, or chains

Abstract

A metal reinforcement for a B-pillar of an automotive vehicle includes a lower flange and an upper structure. The lower flange is adapted to adjoin a door sill structure of the automotive vehicle, and the upper structure includes a central portion, surrounded by a plurality of spaced, paired regions. In each paired region, members are identically ordered in position from the central portion, and both members of each paired region have the same profile thickness.

IPC Classes  ?

• B62D 25/04 - Door pillars
• B62D 29/00 - Superstructures characterised by material thereof

Abstract

A belt tensioning device for a belt drive having at least one apparatus with a housing, a driveshaft and a belt pulley, as well as an infinite belt for driving the belt pulley. The belt tensioning device includes a base that can be or is firmly connected to the apparatus, exactly one tensioning arm that, relative to the base, is supported so as to be pivotable around a pivot axis and that, via a torsion spring, is supported in the circumferential direction against the base. The belt tensioning device also includes a tensioning roller that, at the tensioning arm, is supported so as to be rotatable around an axis of rotation and serves to tension the belt. When the belt tensioning device is mounted at the apparatus, the pivot axis of the tensioning arm is arranged inside the outer diameter of the belt pulley of the apparatus.

IPC Classes  ?

• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley
• F16H 7/08 - Means for varying tension of belts, ropes, or chains

Abstract

The invention relates to a leaf spring (1) for motor vehicles, which is made of a fiber-reinforced synthetic material and can absorb potentially occurring lateral forces and transfer them to a leaf spring receiving device, comprises a first end (2) and a second end (3), which can each be fixed in a leaf spring receiving device in a torsion-proof and non-displaceable manner, and a bending joint section (11), which can compensate for a change in length of a resilient section (8) of the leaf spring (1) during a load-induced deformation of the resilient section (8). The leaf spring (1) comprises a first spring limb (5) and a second spring limb (6) which are connected to each other via a transition section (7). In a non-loaded state, both the first spring limb (5) and the second spring limb (6) are approximately planar and disposed at an angle relative to each other. The first spring limb (5) forms the resilient section (8). The bending joint section (11) contains the second spring limb (6). The second spring limb (6) is shorter than the first spring limb (5) and oriented approximately perpendicularly to the first spring limb (5). The leaf spring (1) is integrally produced from unidirectional prepregs having a duroplastic or thermoplastic matrix by means of a pressing method.

IPC Classes  ?

• B60G 11/10 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
• F16F 1/368 - Leaf springs
• F16F 1/18 - Leaf springs

Abstract

The invention relates to a leaf spring (1) for motor vehicles, which is made of a fiber-reinforced synthetic material and can absorb potentially occurring lateral forces and transfer them to a leaf spring receiving device, comprises a first end (2) and a second end (3), which can each be fixed in a leaf spring receiving device in a torsion-proof and non-displaceable manner, and a bending joint section (11), which can compensate for a change in length of a resilient section (8) of the leaf spring (1) during a load-induced deformation of the resilient section (8). The leaf spring (1) comprises a first spring limb (5) and a second spring limb (6) which are connected to each other via a transition section (7). In a non-loaded state, both the first spring limb (5) and the second spring limb (6) are approximately planar and disposed at an angle relative to each other. The first spring limb (5) forms the resilient section (8). The bending joint section (11) contains the second spring limb (6). The second spring limb (6) is shorter than the first spring limb (5) and oriented approximately perpendicularly to the first spring limb (5). The leaf spring (1) is integrally produced from unidirectional prepregs having a duroplastic or thermoplastic matrix by means of a pressing method.

IPC Classes  ?

• F16F 1/368 - Leaf springs
• B60G 11/10 - Resilient suspensions characterised by arrangement, location, or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle

Abstract

A method for annealing a strip of steel having a variable thickness in its length direction with at least thicker and thinner sections, wherein the strip has been cold rolled to form the thicker and thinner sections, one thicker and one thinner section having a length of at most a few meter. The annealing is performed by continuous annealing.

IPC Classes  ?

• C21D 8/02 - Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
• C23C 2/28 - Thermal after-treatment, e.g. treatment in oil bath
• C23C 2/06 - Zinc or cadmium or alloys based thereon

Abstract

A belt tensioning device for a belt drive which comprises a driving machine with a driving belt pulley drivable by a driveshaft around a driving axis, and a plurality of further belt pulleys and with an infinite belt which is wrapped around the driving belt pulley and the further belt pulleys wherein the belt tensioning device comprises a housing in which two tensioning arms are supported so as to be pivotable around a common pivot axis, in which tensioning arms there are supported tensioning rollers with axes of rotation extending parallel to the driving axis, wherein the tensioning arms are supported relative to one another by spring means, wherein, with the driving belt pulley mounted at the driving machine, the housing can be mounted in that, in an annular region surrounding the driveshaft of the driving belt pulley, the housing is contact-free relative to the driving machine.

IPC Classes  ?

• F16H 7/12 - Means for varying tension of belts, ropes, or chains by adjusting the axis of a pulley of an idle pulley

Abstract

2.

IPC Classes  ?

• C21D 1/04 - General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering with simultaneous application of supersonic waves, magnetic or electric fields
• C21D 1/54 - Determining when the hardening temperature has been reached by measurement of magnetic or electrical properties

Abstract

axially shortening the cam 11 between a lower die 22 that is situated between the mold 21 and the arbor 23 and on which the cam 11 lies with a first end face 14 and an upper die 25 that is guided between the mold 21 and the arbor 23 and acts upon the second end face 15 of the cam 11.

IPC Classes  ?

• B21D 39/00 - Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by platingTube expanders
• B21D 53/84 - Making other particular articles other parts for engines, e.g. connecting-rods
• F01L 1/04 - Valve drive by means of cams, camshafts, cam discs, eccentrics, or the like

Abstract

A wheel suspension is described with a wheel-guiding McPherson strut unit which has a helical compression support spring, a shock absorber which is connected on one end to the body and on the other end to the wheel, and a suspension arm, the helical compression spring being made such that the helical compression spring at least partially compensates for transverse forces which occur on the shock absorber without the action of the helical compression spring. To enable the weight of the helical compression spring to be reduced, the helical compression spring is constructed and arranged so that the stress in the spring is at least approximately, preferably exactly, the same on the side of the spring center line or line of action of the spring force facing the wheel as on the side facing away from the wheel. This makes it possible to reduce the weight throughout by roughly 10%.

IPC Classes  ?

• B60G 11/56 - Resilient suspensions characterised by arrangement, location, or kind of springs having springs of different kinds not including leaf springs having helical, spiral or coil springs, and also fluid springs

Abstract

A process for producing plate springs or undulating springs wherein surface regions which are subjected to tensile stresses when the spring is under load are provided with an internal compressive stress in the boundary layer, wherein said surface regions are rollingly compressed by a ball or roller or subjected to tensile stress and compressed by shot peening.

IPC Classes  ?

• C21D 7/06 - Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
• F16F 1/32 - Cup springsDished disc springs
• B23P 9/02 - Treating or finishing by applying pressure, e.g. knurling
• B24C 1/10 - Methods for use of abrasive blasting for producing particular effectsUse of auxiliary equipment in connection with such methods for compacting surfaces, e.g. shot-peening
• C21D 1/78 - Combined heat-treatments not provided for above
• C21D 9/02 - Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articlesFurnaces therefor for springs

Goods & Services

Flexibly rolled metal parts, included in this class, namely tubes. Flexibly rolled vehicle parts made of metal, included in this class, namely shaped parts made from tubes.

Goods & Services

Flexibly rolled metal parts, included in this class, namely sheet metals. Flexibly rolled vehicle parts made of metal, included in this class, namely shaped parts made from sheet metals.

Goods & Services

Flexibly rolled metal parts, included in this class, in particular sheet metals, tubes and profiles. Flexibly rolled vehicle parts made of metal, included in this class, in particular shaped parts made from sheet metals, tubes and profiles.

Goods & Services

Ressorts en métal, en particulier ressorts cylindriques comme ressorts à pression et de traction, ressorts filiformes, ressorts plats, ressorts pour moules lourds, ressorts à spirales plats, ressorts à disques, ressorts à barre de torsion, douilles de serrage et manchons de serrage et de fixation métalliques, quincaillerie. Machines-outils, en particulier cisailles, poinçonneuses, machines à encocher, appareils à marquer et tables de perçage à coordonnées pour tôle d'acier, acier en barres, acier plat et acier profilé, ainsi qu'outils pour ces machines, machines de cisaillage et cintreuses pour fers à béton et outils pour ces machines. Outils à main, en particulier cisailles, poinçonneuses, outils à encocher et à marquer pour tôle d'acier, acier en barres, acier plat et acier profilé; ouvre-boîtes de conserves.