Abstract

An aerodynamic system for a truck (12) is provided that has a faring (14) carried by the truck with an outer surface (24) that is an air flow surface across which air flows when the truck is moving forward. The faring has a tailing end with a first kick out (22) that has a first kick out exit surface (24) oriented at a first angle with respect to the air flow surface. The tailing end has a second kick out (28) with a second kick out exit surface (30) oriented at a second angle with respect to the air flow surface. The first angle is different than the second angle. The truck has a longitudinal axis, a longitudinal direction and a vertical direction. The air flow surface is located forward from the tailing end in the longitudinal direction, and the first kick out is located higher than the second kick out in the vertical direction.

IPC Classes  ?

• B62D 35/00 - Vehicle bodies characterised by streamlining

Abstract

A method of mounting a non-pneumatic tire (102) onto a hub (300) to provide a non-pneumatic wheel (100). Certain portions of spokes (106) of the non-pneumatic tire (102) are connected to grooves (318) along the hub (300). The tire (102) is repeatedly rotated and deformed to allow the remaining portions of the spokes (106) to be connected with the grooves (318) in order to fully mount the non- pneumatic tire (102) onto the hub (300).

IPC Classes  ?

• B60B 1/04 - Attaching spokes to rim or hub
• B60C 7/18 - Non-inflatable or solid tyres characterised by means for increasing resiliency using springs of helical or flat coil form disposed radially relative to wheel axis
• B60C 7/10 - Non-inflatable or solid tyres characterised by means for increasing resiliency
• B60C 7/14 - Non-inflatable or solid tyres characterised by means for increasing resiliency using springs
• B60B 21/06 - Rims characterised by means for attaching spokes
• B60B 9/04 - Wheels of high resiliency using springs in leaf form
• B60B 9/26 - Wheels of high resiliency comprising resilient spokes

Abstract

A non-pneumatic wheel (100) including a hub (300) and a non- pneumatic tire (102), as well as a method for mounting the non- pneumatic tire (102) onto the hub (300). The hub (300) is formed, with grooves (318) that receive the radially-inner ends (110) of spokes (106) of the non-pneumatic tire (102). To secure the tire (102) onto the hub (300) during assembly, the grooves (318) with the radially inner ends (110) of the spokes (106) received therein are pulled radially inward to decrease the diameter of the hub (300) and increase tension in the spokes (106).

IPC Classes  ?

• B60B 1/04 - Attaching spokes to rim or hub
• B60C 7/24 - Non-inflatable or solid tyres characterised by means for securing tyres on rim or wheel body

Abstract

A hub (300) for a non-pneumatic wheel (102) and the non-pneumatic wheel (102) incorporating such hub (300). The hub (300) includes an annular receiver (302) with a plurality of projections (312) and grooves (318) arranged in an alternating manner along the circumferential direction of the hub (300). The grooves (318) are configured to receive tension-transmitting elements or spokes (106) of the non-pneumatic wheel (102). The annular receiver (302) may be manufactured from a single sheet of metal that is folded and welded to create the projections (312) and grooves (318).

IPC Classes  ?

• B60B 1/04 - Attaching spokes to rim or hub
• B60C 7/24 - Non-inflatable or solid tyres characterised by means for securing tyres on rim or wheel body

Abstract

An apparatus for a vehicle is provided that includes a spindle sleeve with a spindle sleeve inner surface axis. The spindle sleeve has a spindle sleeve outer surface axis that is not coaxial with the spindle sleeve inner surface axis. A hub with a hub axis coaxial with the spindle sleeve outer surface axis is also present. Also included are first and second bearings within the hub, and a containment seal that engages the hub and the spindle sleeve. A sleeve washer is included, and the containment seal is located between the first bearing and the sleeve washer in an axial direction of the hub.

IPC Classes  ?

• B60B 27/00 - Hubs
• B62D 17/00 - Means on vehicle for adjusting camber, castor, or toe-in

Abstract

Embodiments of the present invention include a tire tread, a tire including the tire tread, and methods of reducing tread wear on a tire. Particular embodiments of the tread include a plurality of tread elements, where for each of the plurality of tread elements, an average radial inclination angle comprising a combined average of an average radial first-side angle and an average radial second-side angle for all of the plurality of tread elements along the first and second longitudinally-spaced sides is substantially greater than zero. Additionally, as to the plurality of tread elements, an average axial inclination angle comprising a combined average of the average axial first-side angle and an average axial second-side angle for all of the one or more tread elements along the first and second longitudinally-spaced sides is substantially greater than zero.

IPC Classes  ?

• B60C 11/03 - Tread patterns
• B60C 11/13 - Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
• B60C 19/00 - Tyre parts or constructions not otherwise provided for

Abstract

The invention relates to a device (1) for handling tyre casings, which comprises: at least one first actuator (7) capable of pushing a roll (18) comprising tyre casings arranged in series in the roll in a non-vertical general direction, so as to transfer the roll from a first mounting (3, 11) to a second mounting (3, 11); and at least one second actuator (7) capable of retaining the roll during the transfer.

IPC Classes  ?

• B29D 30/00 - Producing pneumatic or solid tyres or parts thereof

Abstract

The invention relates to a tyre (1), the tread (9) of which comprises a peripheral reinforcement (20) consisting of a material of a higher rigidity than that of the rubber mixture of the rest of the tread, the tyre having an outer side E and an inner side I, the peripheral reinforcement (20) comprising a reinforcement layer placed in the tread pattern blocks arranged axially on the outside in relation to one of the first (11) and second (12) peripheral grooves of the tread, from the outside inwards and axially close to said peripheral groove.

IPC Classes  ?

• B60C 11/13 - Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping

Abstract

The invention relates to a mould for manufacturing a tyre, said mould comprising a moulding ring, said ring comprising a plurality of sectors, each sector comprising a plurality of interchangeable elements (18), said elements supporting a moulding surface (20) from which at least two raised elements rise on the left and right (22G, 22D) separated by a transverse distance (D22), the mould comprising a blade (24) for transversely placing a reinforcement (10) in the transverse direction (DT) between the two raised elements (22G, 22D) and offering two intermediate bearing points (PIG, PID) separated by a recessed portion, said intermediate bearing points (PIG, PID) being located at a height (HIG, HID) no higher than the height (H22G, H22D) of the raised elements (22G, 22D), the bearing distance (DA) separating said two intermediate bearing points (PIG, PID) being smaller than the transverse distance (D22) separating the two raised elements (22G, 22D), and the recessed portion of the blade not offering any bearing points.

IPC Classes  ?

• B29D 30/06 - Pneumatic tyres or parts thereof
• B29D 30/66 - Moulding treads on to tyre casings, e.g. non-skid treads with spikes

Abstract

The invention relates to a tyre comprising a tread layer (10), said tread layer comprising at least one elongate block (13) extending over the entire circumference of the tyre. The elongate block (13) is delimited by at least one side wall (15) and a contact face (17), said contact face (17) being intended to come into contact with a roadway. The tyre comprises at least one channel (19) extending in the elongate block (13) and opening out on the side wall (15) of said elongate block. The tyre also comprises an incision (21) extending from the channel (19) towards the contact face (17), said incision (21) opening out onto the side wall (15) of the elongate block (13) at an exit zone of the side wall. The side wall (15) of the elongate block (13) is inclined with respect to a radial direction (Z), at least in the exit zone of the side wall of the incision (21), at an angle θ of between 20 degrees and 60 degrees with respect to said radial direction (Z).

IPC Classes  ?

• B60C 11/03 - Tread patterns
• B60C 11/12 - Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes
• B60C 11/13 - Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping
• B60C 11/04 - Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag

Abstract

The invention relates to a tyre including a tread (1) comprising a plurality of blocks (3) separated by grooves (5), each block (3) including a contact surface (7) intended for engaging with the ground and at least one complex incision (9) with a depth P and a length L defined by two rubber walls facing one another. Every wall of at least one complex incision (9) comprises an alternation of bumps (11) and recesses (13) extending from the contact surface of the block to a depth Pa lower than the depth P. The alternations of bumps and recesses of the two walls defining the complex incision are complementary so that the space between same is constant overall in said alternation area. The complex incision widens from the depth Pa to form a recess (15) with width W extending in the length L.

IPC Classes  ?

• B60C 11/12 - Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes

Abstract

Method for evaluating thermal stresses associated with the use of a tyre mounted on a rim, comprising the steps during which: - a temperature of a gaseous fluid contained in an internal cavity of the tyre and a temperature of the rim are measured at regular intervals of time, - a temperature at least in an internal zone of the materials of which the tyre is made is estimated using a pre-established law connecting this temperature to the temperature of the gaseous fluid contained in the internal cavity of the tyre and to the temperature of the rim.

IPC Classes  ?

• B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre
• B60C 23/20 - Devices for measuring or signalling tyre temperature

Abstract

The present invention relates to a rubber composition based at least on a diene elastomer, a reinforcing filler comprising a reinforcing inorganic filler, a 1,3-dipolar compound bearing an imidazole function and a blocked mercaptosilane, the blocked mercaptosilane being a blocked thiol comprising an organooxysilyl or silanol group. Such a composition has improved processing without adversely affecting the dispersion of the reinforcing inorganic filler.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 3/36 - Silica
• C08K 5/544 - Silicon-containing compounds containing nitrogen
• C08L 21/00 - Compositions of unspecified rubbers
• C08K 5/3445 - Five-membered rings
• C08K 5/548 - Silicon-containing compounds containing sulfur

Abstract

The present invention relates to a tyre, the tread of which includes a rubber composition including at least: a diene elastomer, 50 to 150 parts per hundred elastomer of a reinforcing filler, a cross-linking system, a plasticising system including greater than 15 and at most 80 parts per hundred elastomer of a non-polymeric phenolic compound, the melting temperature of which is less than 170°C. The use of phenolic plasticisers of which the melting temperature is less than 170°C makes it possible to obtain rubber compositions for tyre treads that have improved cohesion properties, and even significantly improved tyre wear properties, while maintaining low, or even negligible, rolling resistance and a good plasticising capacity.

IPC Classes  ?

• C08K 5/13 - PhenolsPhenolates
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08L 7/00 - Compositions of natural rubber
• C08L 9/06 - Copolymers with styrene

Abstract

The invention relates to a drum (2) for producing a tyre casing blank, comprising sections (8) forming a circumferential face of the drum, expansion means (40, 36, 28, 30, 32) that can move the sections in the radial direction such that all of the sections extend at the same distance from the shaft at any given moment, and regulating means (12, 22) different from the expansion means and able to move the sections in the radial direction such that all of the sections extend at the same distance from the shaft at any given moment. The expansion means can be used in any position of the sections under the effect of the regulating means.

IPC Classes  ?

• B29D 30/24 - Drums

Abstract

A sensor device is provided for use in tire inspection. The sensor device is configured for removable placement along the inner surface of the tire. The sensor device includes multiple rows of sensors, which are used to provide signals that can compensate for the effect of vibrations or mechanical agitation as the sensors are passed over the inner surface of the tire. The sensor device may have a profile that allows for placement of the multiple rows of sensors in close proximity to the inner surface of the tire.

IPC Classes  ?

• G01M 17/02 - Tyres
• G01N 27/82 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws
• G01B 7/32 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring areas

Abstract

A method of using a sensor device for tire inspection is provided. Signals are received from multiples rows of sensors separated by a predetermined distance. The sensors are positioned next to the inner surface of the tire for inspection. Signals from the different rows of sensors are used to identify e.g., breaks in the reinforcements of the tire and also used to identify undesirable signals generated from vibration or jarring of the sensor device.

IPC Classes  ?

• G01M 17/02 - Tyres

Abstract

A sensor device is provided for use in tire inspection. The sensor device is configured for removable placement along the inner surface of the tire. The sensor device includes multiple rows of sensors, which are used to provide signals that can compensate for the effect of vibrations or mechanical agitation as the sensors are passed over the inner surface of the tire. The sensor device may have a profile that allows for placement of the multiple rows of sensors in close proximity to the inner surface of the tire.

IPC Classes  ?

• B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre

Abstract

A method of using a sensor device for tire inspection is provided. Signals are received from multiples rows of sensors separated by a predetermined distance. The sensors are positioned next to the inner surface of the tire for inspection. Signals from the different rows of sensors are used to identify e.g., breaks in the reinforcements of the tire and also used to identify undesirable signals generated from vibration or jarring of the sensor device.

IPC Classes  ?

• B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre

Abstract

The invention relates to a matrix element for a tyre mould which includes a body (12) defining a moulding surface (14) intended for at least partially moulding a tread of the tyre, at least one injection nozzle (26) arranged on the body and provided with at least one outlet opening (26a), at least one supply channel extending into the body and the injection nozzle, communicating with said outlet opening, and at least one sealing member (30) which is movable relative to the injection nozzle between a closed position and an open position of said outlet opening. The body (12), the injection nozzle (26) and the sealing member (30) are manufactured by deposition and selective melting of stacked powder layers.

IPC Classes  ?

• B29D 30/06 - Pneumatic tyres or parts thereof
• B29D 30/66 - Moulding treads on to tyre casings, e.g. non-skid treads with spikes
• B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
• B29C 33/10 - Moulds or coresDetails thereof or accessories therefor with incorporated venting means
• B29C 45/26 - Moulds
• 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

Abstract

A tire tread comprising a rubber composition that is based upon a cross -linkable elastomer composition, the cross-linkable elastomer composition comprising, per 100 parts by weight of rubber (phr) a highly unsaturated rubber and greater than 45 phr of a terpene phenolic resin. The rubber composition may further include a reinforcing filler and a curing system. Optionally the highly unsaturated rubber may be functionalized with an end-chain silanol group and in some embodiments, the entire rubber content of the rubber composition may be such a functionalized rubber, e.g., a silanol end-chain functionalized SBR.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

A rubber substrate has a material diffusion barrier, and a method produces the same. In an embodiment, a method for producing a material diffusion barrier on a rubber substrate includes exposing the rubber substrate to a cationic solution to produce a cationic layer on the rubber substrate. The method also includes exposing the cationic layer to an anionic solution 5 to produce an anionic layer on the cationic layer. The anionic layer comprises graphene oxide. The layer includes the cationic layer and the anionic layer. The layer comprises the material diffusion barrier.

IPC Classes  ?

• B05D 5/12 - Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
• B05D 7/02 - Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
• H01B 1/12 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances organic substances

Abstract

Particular embodiments of the invention include a closed-loop tread strip forming unit (100) and methods for forming tread strips using a closed-loop unit. Embodiments of such forming units include a tread strip extruder (110) located at a pre-cure end of the closed-loop tread strip forming unit. Such units include an uncured tread strip handling assembly (120) configured to transport the first uncured tread strip from the first tread strip extruder and to a first tread strip mold member (130). The unit further includes a curing press (150) having an inlet and an outlet, a pre-cure mold handling assembly (140) configured to insert the loaded tread strip mold member into the curing press, a post-cure mold handling assembly (160) configured to receive the loaded tread strip mold member from the outlet of the curing press, a return assembly (170) configured to transfer the first tread strip mold member to the pre-cure end to complete a closed-loop.

IPC Classes  ?

• B29D 30/00 - Producing pneumatic or solid tyres or parts thereof
• B29D 30/06 - Pneumatic tyres or parts thereof

Abstract

Particular embodiments of the invention include apparatus and methods for compensating for shrinkage of a polymeric material in a mold during curing operations. Embodiments of the method include providing a mold comprising a molding cavity defining an interior mold volume separated from an exterior environment and introducing a volume of polymeric material into the molding cavity. Such methods further include impeding the development of a void in the volume of polymeric material by, either: isolating the volume of polymeric material within the molding cavity from the exterior environment, or reducing the interior mold volume of the molding cavity to at least substantially consume a volume of polymeric material shrinkage. Such methods further include curing the polymeric material to form a molded polymeric form.

IPC Classes  ?

• B29C 39/00 - Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressureApparatus therefor
• B29C 37/00 - Component parts, details, accessories or auxiliary operations, not covered by group or
• B29C 39/26 - Moulds or cores
• B29C 39/40 - Compensating volume change, e.g. retraction

Abstract

Embodiments of the invention include a method for balancing a pneumatic tire including the following steps: determining that a tire is imbalanced, the tire having an interior side including an undertread region spaced apart by a thickness of the tire from a tread of the tire; identifying a balancing weight amount for application to the interior side of the tire at a balancing location; applying a sealant coating annularly around the tire along the undertread region, the coating formed of a sealant material having a thickness that is variable in an annular direction of the tire, the variation in thickness providing a balancing mass arranged at a balancing location to substantially reduce the imbalance, the balancing mass substantially comprising the balancing weight amount. Embodiments also include a tire having a coating formed by the method and an apparatus for performing the method.

IPC Classes  ?

• B60C 19/12 - Puncture preventing arrangements
• B60C 19/00 - Tyre parts or constructions not otherwise provided for
• B29C 73/16 - Auto-repairing or self-sealing arrangements or agents
• B29D 30/06 - Pneumatic tyres or parts thereof

Abstract

The invention relates to a device for coating a wire with a coating material, including: a housing (2) which includes a holder (4) and a cover (5) mounted on the holder, defining a chamber (6), and a die body (18) installed in said chamber, between the holder and the cover. An inlet passage (41) and an outlet passage (42) are arranged between the holder and the cover, the die body comprising a lower part and an upper part (18a, 18b), a sized die channel (35) being arranged therebetween, said inlet and outlet passages and said sized die channel being aligned such that the wire (2) can pass longitudinally therethrough. The device includes a duct (43) for transporting the coating product, having a lower outlet end located near the wire (2), between the upstream through-passage and the die channel.

IPC Classes  ?

• B29B 15/12 - Coating or impregnating of reinforcements of indefinite length
• B29B 15/14 - Coating or impregnating of reinforcements of indefinite length of filaments or wires

Abstract

The invention relates to a tyre comprising a rubber composition based on at least one diene elastomer, a reinforcing filler, a specific polyfunctional acrylate derivative, silica as predominant reinforcing filler, a guanidine derivative, and a peroxide, the polyfunctional acrylate derivative and peroxide contents being such that the ratio of the polyfunctional acrylate derivative content to the peroxide content is greater than or equal to 6.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
• C08K 5/14 - Peroxides
• C08K 5/31 - GuanidineDerivatives thereof
• C08L 7/00 - Compositions of natural rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

Abstract

The invention concerns a deposition device (10) for depositing a crimped wire (12) on a receiving surface (14), the deposition device (10) being characterised in that it comprises a support (16) and a depositing head (18) for depositing the crimped wire (12) on the receiving surface (14), said depositing head (18) comprising a right-hand conveyor (20D) and a left-hand conveyor (20G), each conveyor (20D,20G) transporting a plurality of elements (22) for gripping the wire (12), giving the wire (12) a crimped shape and bringing the crimped wire (12) to the receiving surface (14), the elements (22) of each conveyor (20D,20G) being aligned along a closed circuit unique to each conveyor, the elements (22) of each conveyor (20D,20G) extending towards the outside of the closed circuit of same, the elements (22) of each conveyor (20D,20G) being moved along the closed circuit of same, the right-hand conveyor (20D) and left-hand conveyor (20G) being mounted facing each other on the support (16) such that each element (22) of one of the conveyors (20D,20G) intersects the closed circuit in two locations followed by the elements (22) of the other conveyor (20D,20G) when said element (22) performs a complete turn of the closed circuit of the conveyor of same, and the moving of the elements (22) of one conveyor (20D,20G) being synchronised with the moving of the elements (22) of the other conveyor (20D,20G).

IPC Classes  ?

• B60C 9/02 - Carcasses
• B29D 30/38 - Textile inserts, e.g. cord or canvas layers, for tyresTreatment of inserts prior to building the tyre
• B29C 70/16 - Fibrous reinforcements only characterised by the structure of fibrous reinforcements using fibres of substantial or continuous length
• B60C 9/20 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers built-up from rubberised plies each having all cords arranged substantially parallel

Abstract

The invention concerns, in particular, a device (1) for preparing an undulating reinforcing strip intended for the production of a tyre, said device (20) comprising: - a carousel (4) capable of guiding a plurality of fingers (5) in a generally circular motion about a carousel axis (AC), - a rotary star wheel (6) rotatable about a star wheel axis (AE), said rotary star wheel carrying a plurality of rotary rollers (7) having axes parallel to the star wheel axis, said rollers being distributed on a circle (61) concentric to the star wheel axis, - means for synchronising the generally circular motion of the fingers and the rotation of the star wheel, - guide means (9, 10) for guiding the flat reinforcement strip entering the device.

IPC Classes  ?

• B29D 30/22 - Breaker plies being applied in the unexpanded state
• B29D 30/38 - Textile inserts, e.g. cord or canvas layers, for tyresTreatment of inserts prior to building the tyre
• B29D 30/30 - Applying the layersGuiding or stretching the layers during application

Abstract

The invention concerns, in particular, a method for producing a tyre comprising a step consisting of assembling a blank (1) on a shouldered drum (2), said blank comprising at least one carcass ply (3) and circumferential bead reinforcements (11, 12), said method being characterised in that: - the shouldered drum comprises shoulders (21) having a height (H) at least equal to 25 mm, - the circumferential bead reinforcements are reinforcements wound in several turns around the blank, - the circumferential bead reinforcements are positioned spirally against the shoulder of the drum, the circumferential bead reinforcements being positioned in said blank in a substantially definitive arrangement, - the carcass ply does not comprise a fold around the circumferential bead reinforcements. The invention further concerns a tyre obtained according to said method.

IPC Classes  ?

• B60C 15/00 - Tyre beads, e.g. ply turn-up or overlap
• B29D 30/12 - Cores
• B29D 30/58 - Applying bands of rubber treads, i.e. applying camel backs
• B29D 30/16 - Applying the layersGuiding or stretching the layers during application
• B29D 30/48 - Bead-rings or bead-coresTreatment thereof prior to building the tyre
• B29D 30/18 - Fitting the bead-rings or bead-coresFolding the textile layers around the rings or cores

Abstract

A tire has a material diffusion barrier, and a method produces the same. In an embodiment, a method for producing a material diffusion barrier on a tire comprises exposing a surface of the tire to a cationic solution to produce a cationic layer on the surface. The method further comprises exposing the cationic layer to an anionic solution to produce an anionic layer on the cationic layer, wherein a layer comprises the cationic layer and the anionic layer. The layer comprises the material diffusion barrier.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08L 71/02 - Polyalkylene oxides
• C08L 79/02 - Polyamines

Abstract

Embodiments of the invention provide a tire tread and a tire including the tread, the tread having an improved sacrificial groove arranged along each of one or both opposing lateral sides of the tread. A sacrificial groove is referred to as an intervening longitudinal groove extending into a thickness of the tread from an outer, ground-engaging side of the tread along a depthwise path initiating at an entry location and extending along a first portion of the path to a widthwise extent of the path offset laterally from the entry location towards the first lateral side by a distance substantially equal to 1 mm to 6 mm, and where the depthwise path extends further into the thickness to the terminal end along a second portion of the path, the terminal end being offset laterally from the widthwise extent towards the lateral centerline of the tread.

IPC Classes  ?

• B60C 11/01 - Shape of the shoulders between tread and sidewall, e.g. rounded, stepped or cantilevered
• B60C 11/03 - Tread patterns

Abstract

The present invention includes methods and apparatus for curing retreaded tires, which includes restricting the transfer of polymeric material within a tread strip mold (10). The steps of the method include placing a volume of polymeric material within a tread strip mold comprising a tread cavity (30) and a demolding member cavity (40). The demolding member cavity includes a buffer (50) and a demolding tongue cavity (60). The demolding cavity is connected to one end of the tread cavity with the buffer cavity between. A barrier (100) partially separates the demolding member cavity and the tread cavity. The steps of the method further include distributing the volume of polymeric material at least partially within the molding cavity wherein an excess volume of polymeric material in the demolding member cavity is substantially restricted from transferring into the tread cavity by the barrier.

IPC Classes  ?

• B29C 33/00 - Moulds or coresDetails thereof or accessories therefor
• B29D 30/06 - Pneumatic tyres or parts thereof
• B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles
• B29D 30/08 - Building tyres

Abstract

Present invention provide a tread (1) for a tire having a plurality of grooves (3) formed in the tread, a plurality of contact elements (4) delimited by a plurality of grooves (3) and having circumferential surfaces, transverse surfaces (41, 42) and a contact surface (2) intended to come into contact with ground during rolling, the contact element (4) having a height H, and at least one connecting member (5) connecting the transverse surface (41, 42) of the contact element to the transverse surface (41, 42) of the circumferentially adjacent contact element, a distance h between one of the connecting members and the contact face (2) is at most equal to 30% of the height H, and a material of the connecting member (5) is different from a material of the contact element (4), and a Young modulus of the material of the connecting member (5) is higher than a Young modulus of the material of the contact element (4).

IPC Classes  ?

• B60C 11/03 - Tread patterns
• B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
• B60C 11/13 - Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping

Abstract

Present invention provides a tire (1) intended to be mounted on a mounting rim, the tire comprising a summit (2) surrounded on both sides by sidewalls (3) terminating in beads (4) provided to cooperate with the mounting rim of the tire, the tire comprising a carcass reinforcement (5) extending in the summit and the sidewalls, and anchored at its two ends in the beads, the carcass reinforcement being surmounted radially on the outside by a summit reinforcement (6) composed of a plurality of reinforcing plies (61, 62, 63), said summit reinforcement being surmounted radially on the outside by a tread (10) intended to come into contact with a ground during use of the tire, the tire comprising in its summit, at least one cavity (1 1) acting as a resonator and in fluid communication with the outside of the tire, when the tire is mounted onto a mounting rim each cavity (1 1) having an appropriate volume to form a calibrated resonator to attenuate the noise in a frequency range between 500 and 2000 Hz, the tire being characterized in that each cavity (11) is arranged substantially uniformly in the circumferential direction and is filled with a fibrous or a filamentary material.

IPC Classes  ?

• B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts

Abstract

A tire with an improved grip on, preferably, snow ground includes a tread formed of a rubber composition. The rubber composition comprises at least, a diene elastomer, 0 to less than 45 phr of a reinforcing filler, between 30 and 180 phr of a plasticizer chosen from the group consisting of liquid plasticizers, hydrocarbon resins and the mixtures thereof, and between 2 and 50 phr of short fibers.

IPC Classes  ?

• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 7/02 - Fibres or whiskers

Abstract

The invention relates to a rubber composition based on at least one diene elastomer, a reinforcing filler, a cross-linking system and a hydrocarbonated resin, said hydrocarbonated resin having a number average molecular weight (Mn) of between 700 and 1000 g/mol, an average molecular weight Mz of more than 6000 g/mol, and a polymolecularity index (PI) higher than 2.4.

IPC Classes  ?

• C08L 7/00 - Compositions of natural rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08L 45/00 - Compositions of homopolymers or copolymers of compounds having no unsaturated aliphatic radicals in a side chain, and having one or more carbon-to-carbon double bonds in a carbocyclic or in a heterocyclic ring systemCompositions of derivatives of such polymers
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

A tread (10) for a heavy truck tyre, said tread comprising four grooves (21, 22) of general circumferential orientation delimiting a central region (30), intermediate regions (40) and edge regions (50), each of the intermediate regions (40) being divided into a plurality of elongate relief elements (41), said elongate relief elements (41) delimiting oblique grooves (44) opening into the circumferential grooves (21, 22) and being inclined at an average angle of between 30 degrees and 60 degrees relative to the circumferential direction, said elongate relief elements (40) having an average length in the circumferential direction of between 50 and 70 mm, the depth of the oblique grooves (44) being at least equal to 30% of the depth of the circumferential grooves (21, 22), each elongate relief element (41) comprising a plurality of incisions (45) opening into the oblique grooves (44). This tread is designed such that each elongate relief element (41) further comprises an oblique internal cutout (46) having a total depth at least equal to 75% of the thickness of material to be worn PMU, said oblique cutout comprising a wide portion and a portion forming an incision, said incision being extended by a channel intended to form a new groove after wear.

IPC Classes  ?

• B60C 11/03 - Tread patterns
• B60C 11/12 - Tread patterns characterised by the use of narrow slits or incisions, e.g. sipes

Abstract

The invention relates to a tyre comprising a rubber composition containing at least one diene elastomer, a reinforcing filler, a specific polyfunctional acrylate derivative and a peroxide, the polyfunctional acrylate derivative and peroxide contents being such that the ratio of the polyfunctional acrylate derivative content to the peroxide content is higher than or equal to 6.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 5/103 - EstersEther-esters of monocarboxylic acids with polyalcohols
• C08K 5/14 - Peroxides

Abstract

The invention concerns a deposition device (10) for depositing a crimped wire on a receiving surface, the deposition device (10) depositing the wire such that the crimps of the wire extend in the width of the receiving surface, the deposition device (10) comprising a support and a depositing head (18) for depositing the crimped wire, said depositing head (18) comprising a right-hand conveyor (20D) and a left-hand conveyor (20G), each conveyor (20D,20G) transporting a plurality of elements (22) for gripping the wire, giving the wire a crimped shape and bringing the crimped wire to the receiving surface, and at least one conveyor (20D,20G) being mounted movable relative to the other conveyor such that the movement of one conveyor relative to the other makes it possible to modify the amplitude of the crimps of the deposited wire.

IPC Classes  ?

• B29D 30/30 - Applying the layersGuiding or stretching the layers during application

Abstract

A method and apparatus for molding non-pneumatic wheels is provided. The exemplary method and apparatus allow for the use of the same molding system to manufacture wheels with different hub constructions. Different configurations of removable mold elements are utilized within the same molding system to provide wheels with different hub constructions.

IPC Classes  ?

• B29D 30/02 - Solid tyres

Abstract

A method and apparatus for molding non-pneumatic wheels is provided. The exemplary method and apparatus allow for the use of the same molding system to manufacture wheels with different hub constructions. Different configurations of removable mold elements are utilized within the same molding system to provide wheels with different hub constructions.

IPC Classes  ?

• B29D 30/02 - Solid tyres

Abstract

Methods of forming rubber-based composites and tire components that can incorporate the rubber-based composites are described. The methods can be utilized to form composites in which one or more formation materials incorporated in the composite can have a structure on the microscopic level. The materials that form the composite can be provided in the microstructured composite in a layered arrangement with one another, and can include at least about 20 layers, and the composite can include a large average number of layers, generally more than 20, per millimeter of composite thickness.

IPC Classes  ?

• B32B 25/04 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

A method and apparatus for molding non-pneumatic wheels is provided. The exemplary method and apparatus allow for the use of the same molding system to manufacture wheels with different hub constructions. Different configurations of removable mold elements are utilized within the same molding system to provide wheels with different hub constructions.

IPC Classes  ?

• B29D 30/02 - Solid tyres
• B60C 7/00 - Non-inflatable or solid tyres
• B60C 7/10 - Non-inflatable or solid tyres characterised by means for increasing resiliency

Abstract

The invention relates to a method for detecting a defect on a surface of a tyre (4), in which automated means calculate values of a gradient of a plurality of texture parameters from an image of the surface (18) of the tyre (4), determine an image of the gradient (20), and threshold the image of the gradient in order to obtain a thresholded image (22).

IPC Classes  ?

• G06T 7/00 - Image analysis
• G06T 7/40 - Analysis of texture

Abstract

The invention relates to a tyre with an inflation pressure no lower than 6 bars, made up of at least two layers (2, 6) of reinforcing elements. The first layer (2) is folded back around the bead wires and the second layer (6) extends from one bead to the other, the ends thereof being axially external to the most axially external of each of the bead wires. According to the invention, each of the carcass reinforcement layers (2, 6) has a breaking strength per unit of width of more than 2250 daN/dm, the minimum rigidity per unit of width, measured for an elongation of less than 10 %, of the second carcass reinforcement layer being strictly greater than a value equal to 20 % of the minimum rigidity per unit of width, measured for an elongation of less than 10 %, of the first carcass reinforcement layer, the reinforcing elements of the two carcass reinforcement layers having a yarn count of less than 750 tex, the elongation of the reinforcement layers of the second carcass reinforcement layer being greater than 4 % under a force of 20 daN, and the secant modulus of elasticity under tension at 10 % elongation Mt, Mj comply with the relation Mt/Mj > 1.

IPC Classes  ?

• B60C 15/00 - Tyre beads, e.g. ply turn-up or overlap
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• B60C 9/02 - Carcasses
• B60C 15/04 - Bead cores

Abstract

The invention relates to a snow tyre with improved grip on dry or wet ground, the tread thereof having a rubber composition comprising at least: between 50 and 100 pce of a butyl rubber; optionally, between 0 and 50 pce of another diene rubber; between 50 and 200 pce of an inorganic reinforcing filler such as silica; and more than 30 phr of a liquid phosphate plasticiser having a glass transition temperature lower than -80°C.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/36 - Silica
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08L 23/22 - Copolymers of isobuteneButyl rubberHomopolymers or copolymers of other iso-olefins
• C08L 23/28 - Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bondCompositions of derivatives of such polymers modified by chemical after-treatment by reaction with halogens or halogen-containing compounds

Abstract

The invention relates to a system for evaluating the contact area of a vehicle, said system comprising: a system for evaluating the condition of a tyre, comprising a casing that is positioned on the ground; means for determining at least one instant at which the vehicle passes over a distinct passage point of the casing of the evaluation system; and means for calculating at least one local contact area length of at least one tyre of the vehicle according to the passage of the vehicle and dimensional data of the casing and/or the vehicle and the speed of the vehicle.

IPC Classes  ?

• G01M 17/02 - Tyres
• B60C 11/24 - Wear-indicating arrangements
• G01P 3/64 - Devices characterised by the determination of the time taken to traverse a fixed distance
• B60C 23/06 - Signalling devices actuated by deformation of the tyre

Abstract

The invention relates to a system for evaluating the condition of a tyre, said system comprising a first casing which is positioned on the ground. The system comprises: a first sensor installed in the casing and intended to measure a first characteristic of a tyre travelling over the casing; and a second sensor installed in the casing and intended to measure a second characteristic of a tyre travelling over the casing, said first and second sensors being positioned such that the instants at which a vehicle travels over the casing at each of the sensors are different. The system also comprises an electronic control unit including means for determining the direction of travel of the vehicle on the casing according to the positions of each of the sensors in the casing and the instants at which a vehicle travels over each of the sensors.

IPC Classes  ?

• G01M 17/02 - Tyres

Abstract

The invention relates to a tyre tread having a rubber composition based on at least one natural or synthetic polyisoprene, in a proportion of between 50 pce and 100 pce, a reinforcing filler comprising predominantly in terms of weight of the inorganic filler, a coupling agent, a plasticiser in a proportion lower than or equal to 10 pce and a sulphur cross-linking system, characterised in that the composition contains between 0.7 and 2 pce of zinc.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/06 - Sulfur
• C08K 3/22 - OxidesHydroxides of metals
• C08K 3/36 - Silica
• C08L 7/00 - Compositions of natural rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

Abstract

The bead wire (52) for a tyre is substantially rotationally symmetric around an axis comprising several windings of at least one wire arranged axially beside one another over N layers Ci radially superimposed on top of one another. The bead wire (52) for a tyre comprises a base hexagonal bead wire (56) comprising: - radially external and internal layers (C'sup, C'inf) of N1 windings, - two axially and radially external lateral alignments (F1, F2) of N1 windings, - two axially external and radially internal lateral alignments (F3, F4) of N1 windings. The bead wire (52) for a tyre comprising a winding (E3.1, E4.1) for axial continuation of the radially internal layer (C'inf). The bead (52) for a tyre comprising an additional layer (Ca3) of N2 windings forming the radially external layer of the bead (52) for a tyre (10).

IPC Classes  ?

• B60C 15/04 - Bead cores

Abstract

The invention relates to a selective laser sintering method of manufacturing a tread molding element (1), said tread molding element (1) comprising at least a fine lamella (20) adapted to mold a shallow sipe in a tread tyre, the fine lamella having a length (L2). The fine lamella is sintered in a plurality of portions (p2) at different layers (N), in each layer (N) the laser beam sinters the portion (p2) of the fine lamella in only one passage in the length (L2) of the fine lamella (20) without round-trip passage of the laser beam, the direction (D1) of this passage being the same at the different layers (N) for building the different portions (p2) of the fine lamella (20). The thickness (w) of the fine lamella is smaller than 0,2 mm, and the height (h) of the fine lamella 20 is smaller than or equal to 2 mm.

IPC Classes  ?

• B22F 3/105 - Sintering only by using electric current, laser radiation or plasma
• B29D 30/06 - Pneumatic tyres or parts thereof
• B29C 33/38 - Moulds or coresDetails thereof or accessories therefor characterised by the material or the manufacturing process
• B29C 67/00 - Shaping techniques not covered by groups , or
• B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
• B29D 30/66 - Moulding treads on to tyre casings, e.g. non-skid treads with spikes
• B60C 11/03 - Tread patterns
• B22F 5/00 - Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product

Abstract

Tyre having an inner and/or outer surface comprising a receiving region, an adhesive layer deposited on said receiving region and a protective film deposited on said adhesive layer, characterized in that said adhesive layer is made from a block thermoplastic elastomer (TPE) comprising an elastomer block made from a diene elastomer having a molecular (or mass) unsaturation level greater than 0%.

IPC Classes  ?

• B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/04 - Carbon
• C09J 153/02 - Vinyl aromatic monomers and conjugated dienes
• C08L 53/02 - Compositions of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bondsCompositions of derivatives of such polymers of vinyl aromatic monomers and conjugated dienes

Abstract

The invention relates to a tire blank, said method comprising, in sequence, the steps involving: - positioning plies of rubber on a drum (2) consisting of segments (8) which are radially movable between an extended position and a collapsed position of the drum, wherein said segments form the outer circumferential surface (10) of the drum (2) of the main axis (6), - positioning bead wires - raising the edges of the plies extending axially beyond the bead wires toward the ends of the drum using blades (45) extending axially and arranged circumferentially about the main axis (6), - folding the edges of the plies using roller elements (90) separate from the drum (2) and which move in the axial direction across the circumferential surface of the drum to roll the edges of the plies up around the bead wire, - moving said blades (45) into longitudinal slots (40) extending parallel to the axis (6) at the ends of the segments (8) to raise the edges of the plies of rubber placed on the drum before folding same.

IPC Classes  ?

• B29D 30/08 - Building tyres
• B29D 30/32 - Fitting the bead-rings or bead-coresFolding the textile layers around the rings or cores
• B29D 30/48 - Bead-rings or bead-coresTreatment thereof prior to building the tyre

Abstract

In this method for referencing stripes present in numerical representations (10) of tyres, automated means perform the following steps in order to reference the types of striation: - determining at least one representation comprising one type of stripe (1, 2) to be referenced, - identifying at least one segment of pixels or voxels in the representation (10), and - recording at least a value relating to differences between the grey scale levels or colour levels of pixels or voxels in the segment.

IPC Classes  ?

• G06T 7/00 - Image analysis
• G06T 7/40 - Analysis of texture

Abstract

A structurally supported, non-pneumatic wheel is provided. The wheel includes a hub constructed from a polymeric material, which can more readily resist deformation during an impact event and provide improvements in noise generation and manufacturing cost. A plurality of tension-transmitting web elements connect the hub with a compliant, load supporting band.

IPC Classes  ?

• B60C 7/00 - Non-inflatable or solid tyres

Abstract

Methods of forming rubber-based composites and tire components that can incorporate the rubber-based composites are described. The methods can be utilized to form composites in which one or more formation materials incorporated in the composite can have a structure on the microscopic level. The materials that form the composite can be provided in the microstructured composite in a layered arrangement with one another, and can include at least about 20 layers, and the composite can include a large average number of layers, generally more than 20, per millimeter of composite thickness.

IPC Classes  ?

• B32B 25/00 - Layered products essentially comprising natural or synthetic rubber
• B32B 25/02 - Layered products essentially comprising natural or synthetic rubber with fibres or particles embedded in it or bonded with it
• B32B 25/04 - Layered products essentially comprising natural or synthetic rubber comprising rubber as the main or only constituent of a layer, next to another layer of a specific substance
• B32B 27/00 - Layered products essentially comprising synthetic resin
• B32B 27/30 - Layered products essentially comprising synthetic resin comprising vinyl resinLayered products essentially comprising synthetic resin comprising acrylic resin
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition

Abstract

A method is provided for forming an impermeable barrier layer on an inner tire surface of a tire. An assembly is also provided along with a kit for forming an impermeable barrier layer on an inner tire surface of a tire accordingly.

IPC Classes  ?

• B05B 13/06 - Machines or plants for applying liquids or other fluent materials to surfaces of objects or other work by spraying, not covered by groups specially designed for treating the inside of hollow bodies
• B05C 9/12 - Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by groups , or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation being performed after the application
• B29D 30/06 - Pneumatic tyres or parts thereof

Abstract

A structurally supported, non-pneumatic wheel is provided. The wheel includes a hub constructed from a polymeric material, which can more readily resist deformation during an impact event and provide improvements in noise generation and manufacturing cost. A plurality of tension-transmitting web elements connect the hub with a compliant, load supporting band.

IPC Classes  ?

• B60C 7/00 - Non-inflatable or solid tyres
• B60C 7/10 - Non-inflatable or solid tyres characterised by means for increasing resiliency
• B60C 7/24 - Non-inflatable or solid tyres characterised by means for securing tyres on rim or wheel body

Abstract

A method and apparatus for molding non-pneumatic wheels is provided. The exemplary method and apparatus allow for the use of the same molding system to manufacture wheels with different hub constructions. Different configurations of removable mold elements are utilized within the same molding system to provide wheels with different hub constructions.

IPC Classes  ?

• B29D 30/02 - Solid tyres

Abstract

Heavy truck tire tread having a longitudinal direction, a transverse direction and a thickness direction, said tread having a ground engaging surface and comprising a series of similar tread features repeated along its longitudinal direction, each tread feature comprising:- two ducts extending from the ground-engaging surface in the thickness direction, said ducts being apart one from the other and having a duct section area of at least 10 mm2 and a length comprised between 50% and 100% of a thickness of said tread; - one void being in fluidic connection with said two ducts, said void extending substantially parallel to the ground-engaging surface of the tread and at a distance therefrom and having a void section area of at least 10 mm; and -one sipe joining said two ducts and said void; wherein said feature is otherwise blind and said series comprises 50 of said similar tread features.

IPC Classes  ?

• B60C 11/03 - Tread patterns

Abstract

A snow tire with an improved grip on snow ground includes a tread formed of a rubber composition. The rubber composition comprises at least, more than 50 and up to 100 phr of a first diene elastomer chosen from the group consisting of natural rubber, synthetic polyisoprenes, polybutadienes and the mixtures thereof, optionally, 0 to less than 50 phr of another diene elastomer, 40 to 200 phr of a reinforcing filler comprising an inorganic filler, a carbon black or the mixture thereof, wherein a content of the carbon black is less than 20 phr, more than 10 phr and less than 100 phr of a liquid phosphate plasticizer having a glass transition temperature less than -80°C.

IPC Classes  ?

• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/04 - Carbon
• C08K 3/36 - Silica
• C08K 5/521 - Esters of phosphoric acids, e.g. of H3PO4
• C08L 7/00 - Compositions of natural rubber

Abstract

The invention relates to a tyre comprising a tangential direction XX', an axial direction YY' and a radial direction ZZ' and comprising at least one carcass reinforcement (2) surmounted radially on the outside by a crown reinforcement (3), itself radially on the inside of a tread (4), the said crown reinforcement (3) consisting of at least one layer of reinforcing elements, the said tread comprising reinforcers (8) and being connected to two beads (5) by two sidewalls (6), the said beads (5) being intended to come into contact with a rim, each bead (5) comprising at least one circumferential reinforcing element (7). The tyre is characterized in that the tread (4) is made of a rubber composition having a shear modulus greater than or equal to 0.4MPa and less than 1MPa, in that the reinforcers (8) of the tread (4) have, in the direction in which they are present, an extensibility less than or equal to 30%, and in that the extensibility of the reinforcers is identical or different in the directions YY' and XX' or only in the direction YY'.

IPC Classes  ?

• B60C 11/14 - Anti-skid inserts, e.g. vulcanised into the tread band
• B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
• B60C 9/18 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers
• B60C 11/18 - Anti-skid inserts, e.g. vulcanised into the tread band or strip form, e.g. metallic combs, rubber strips of different wear resistence

Abstract

The invention relates to a tyre having a load index no lower than 118, made up of at least two layers (2, 6) of reinforcing elements. The first layer (2) is folded back around the bead wires and the second layer (6) extends from one bead to the other, the ends thereof being axially external to the most axially external of each of the bead wires. According to the invention, each of the carcass reinforcement layers (2, 6) has a breaking strength per unit of width of more than 2900 daN/dm, the minimum rigidity per unit of width, measured for an elongation of less than 10 %, of the second carcass reinforcement layer being strictly greater than a value equal to 20 % of the minimum rigidity per unit of width, measured for an elongation of less than 10 %, of the first carcass reinforcement layer, the reinforcing elements of the first carcass reinforcement layer having a yarn count of more than 300 tex, the reinforcing elements of the two carcass reinforcement layers having a yarn count of less than 750 tex, the elongation of the reinforcement layers of the second carcass reinforcement layer being greater than 8% under a force of 20 daN, and the secant modulus of elasticity under tension at 10 % elongation Mt, Mj comply with the relation Mt/Mj > 1.

IPC Classes  ?

• B60C 15/00 - Tyre beads, e.g. ply turn-up or overlap
• B60C 15/06 - Flipper strips, fillers, or chafing strips
• B60C 9/02 - Carcasses
• B60C 15/04 - Bead cores

Abstract

The invention relates to a tyre sidewall having a rubber composition based on at least one blend of polyisoprene, natural rubber or synthetic polyisoprene, and polybutadiene BR, a reinforcing filler comprising carbon black and silica, a crosslinking system, characterized in that the reinforcing filler predominantly comprises carbon black, that the content of carbon black ranges from 20 to 30 parts per hundred parts of elastomer, phr, and the content of silica ranges from 1 to 7 phr and that the total content of reinforcing filler is less than or equal to 35 phr, the dispersion of the filler in the elastomeric matrix having a Z value greater than or equal to 75.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08L 7/00 - Compositions of natural rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• C08J 3/20 - Compounding polymers with additives, e.g. colouring

Abstract

The invention relates to a method for measuring the thickness of a layer of rubber-like material, said layer of material comprising a free face in contact with the air and a face connected to an adjacent casing formed by elements which are electrically insulated from one another and contain at least one hysteresis material having a magnetic permeability above that of air. The method comprises the following steps: a step during which a sensor element that emits an alternating magnetic field is brought close to the layer of material of which the thickness is to be measured; a step during which the hysteresis losses in the adjacent casing are measured at the terminals of the sensor element; and a step during which the thickness of the layer of material is evaluated according to the hysteresis losses.

IPC Classes  ?

• G01M 17/02 - Tyres
• G01B 7/06 - Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width, or thickness for measuring thickness

Abstract

The invention relates to a method for detecting the under-inflation state of a tyre mounted on a vehicle, said method comprising the following steps: a step of determining a first contact area measurement of a first tyre mounted on the vehicle, a step of determining a second contact area measurement of a second tyre mounted on the vehicle, and a step of comparing the first and second contact area measurements and, if the difference between the two measurements is above a pre-determined alarm threshold, inferring the existence of an under-inflation situation.

IPC Classes  ?

• B60C 23/06 - Signalling devices actuated by deformation of the tyre

Abstract

The invention relates to a system for evaluating the condition of a tyre, said system comprising a first casing which is positioned on the ground and a device for detecting the wear of a tyre as it passes over the first casing. The system also comprises: a first device for detecting the presence of a tyre on the first casing; and electronic means for activating the wear-detection device when the presence of a tyre is detected by the presence-detection device.

IPC Classes  ?

• G01M 17/02 - Tyres
• G01B 11/22 - Measuring arrangements characterised by the use of optical techniques for measuring depth
• G01B 11/25 - Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. moiré fringes, on the object

Abstract

The invention relates to a tyre comprising at least one rubber composition made from at least one diene elastomer, a reinforcing filler, a plasticizing system and a cross-linking system, characterized in that the composition comprises hexagonal boron nitride having a BET specific surface area greater than or equal to 10 m2/g as the reinforcing filler with a content from 30 to 350 parts per hundred of elastomer, phr, and a coupling agent capable of binding the boron nitride to the diene elastomer.

IPC Classes  ?

• C08K 3/38 - Boron-containing compounds
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08L 21/00 - Compositions of unspecified rubbers
• C08K 5/548 - Silicon-containing compounds containing sulfur
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 5/00 - Use of organic ingredients

Abstract

The invention relates to a tyre sidewall having a rubber composition based on at least one blend of polyisoprene, natural rubber or synthetic polyisoprene, and polybutadiene BR, a reinforcing filler comprising carbon black and silica, a crosslinking system, characterized in that the reinforcing filler predominantly comprises silica, that the content of silica ranges from 20 to 40 parts per hundred parts of elastomer, phr, and the content of carbon black is less than or equal to 5 phr and that the total content of reinforcing filler is less than or equal to 45 phr.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/36 - Silica
• C08L 7/00 - Compositions of natural rubber
• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons

Abstract

The invention relates to a mold (20) for vulcanizing an annular adapter (1) for fitting a tire onto a rim of a vehicle. Said mold comprises: - a bottom mold (17) that does not change shape and defines the outer surface of the adapter; - two side shells (24, 26) used for molding the front surfaces of the adapter; and - a peripheral ring divided into a plurality of segments (22) for molding of the inner surface of the adapter. According to the invention, said bottom mold (17) that does not change shape includes a rigid mounting (10) having a flexible ring (15) mounted thereon. Said mold is created such that the flexible ring (15) fits inside the mold (20) when said mold is in the closed position.

IPC Classes  ?

• B29D 30/06 - Pneumatic tyres or parts thereof
• B29C 33/44 - Moulds or coresDetails thereof or accessories therefor with means for, or specially constructed to facilitate, the removal of articles, e.g. of undercut articles

Abstract

The invention relates to a method for predicting the speed of a driver driving a vehicle, comprising the following steps: - measuring the speed of the driver over a first driving zone, - comparing said measured speed with a set of speed profiles, each profile corresponding to a predetermined driver category, - as a function of the result of said comparison, selecting the relevant category for the driver of the vehicle, and - predicting the speed of the driver over a second driving zone as a function of the reference profile of the selected category. The invention also relates to a method for determining speed profiles for the prediction method according to the invention.

IPC Classes  ?

• B60W 40/09 - Driving style or behaviour

Abstract

The invention relates to a system for evaluating the speed of a vehicle, said system comprising: a system for evaluating the condition of a tyre, comprising a casing that is positioned on the ground; means for determining at least two instants at which the vehicle passes over two optionally-different passage points of the casing of the measurement system; and means for calculating the passage speed of the vehicle over the casing according to the aforementioned passage instants and dimensional data of the casing and/or the vehicle. The invention also relates to a method using such a system.

IPC Classes  ?

• G01P 3/64 - Devices characterised by the determination of the time taken to traverse a fixed distance
• B60C 11/24 - Wear-indicating arrangements
• G01M 17/02 - Tyres

Abstract

The invention relates to a method for controlling a fuel cell with an ion exchange membrane, the cell being mounted in a system which comprises, in addition, a liquid coolant circuit and a liquid coolant circulation pump, wherein the method comprises a fuel cell start-up phase with the following steps: ∙ the internal temperature of the fuel cell is determined; ∙ the temperature in the liquid coolant circuit is measured; ∙ a start-up current is applied to the fuel cell and, in parallel, - when the internal temperature of the cell is higher than a first predetermined threshold, and the temperature of the coolant circuit is lower than a predetermined threshold, the cooling pump is driven in a pulsed manner, and - when the temperature in the coolant circuit exceeds the second predetermined threshold, the cooling pump is driven in a continuous manner.

IPC Classes  ?

• H01M 8/04029 - Heat exchange using liquids
• H01M 8/04223 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-downDepolarisation or activation, e.g. purgingMeans for short-circuiting defective fuel cells
• H01M 8/0432 - TemperatureAmbient temperature
• H01M 8/04746 - PressureFlow
• H01M 8/04119 - Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants with simultaneous supply or evacuation of electrolyteHumidifying or dehumidifying
• H01M 8/1018 - Polymeric electrolyte materials

Abstract

The invention relates to a system for measuring the hygrometry of an ion exchange membrane in a fuel cell comprising N electrochemical cells separated by bipolar plates, where N is a natural number, the system comprising: - an electrical current generator for applying an electrical current to the fuel cell; - a device for measuring the voltage in the cells; and - means for determining the impedance of a membrane as a function of a voltage ripple measured by the measuring device across the terminals of the corresponding cell when an electrical current is applied by the electrical current generator, these means being mounted in the device for measuring voltage in the cells.

IPC Classes  ?

• H01M 8/04492 - HumidityAmbient humidityWater content
• G01R 31/36 - Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
• H01M 8/04537 - Electric variables

Abstract

The invention relates to a fuel cell system comprising: - a stack of electrochemical cells (10) separated by bipolar plates, each of the cells comprising an anode, a cathode and an ion exchange membrane, - a fuel gas supply circuit and an oxidant gas supply circuit, and - a coolant circuit for circulating a liquid coolant, the coolant circuit comprising a secondary circuit and a primary circuit smaller than the secondary circuit, the primary and secondary circuits being isolated from each other by a thermostatic valve (2), - a micropump (6) mounted at the outlet of the stack and allowing the volume of water inside the stack to be agitated, the system further comprising means for determining an inner temperature of the core of the stack, and means for activating the primary coolant circuit when the inner temperature exceeds a predetermined threshold.

IPC Classes  ?

• H01M 8/04 - Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
• H01M 8/10 - Fuel cells with solid electrolytes

Abstract

The invention relates to a patch (1) for an electronic module of a tyre, said patch comprising a compartment (2) that does not have an opening and houses an electronic identification data module (11), the patch also comprising a second compartment (3) for housing an electronic module (12) with complementary functions, which is suitable for receiving the identification data from the identification data module (11), wherein the second compartment comprises a closable opening.

IPC Classes  ?

• B60C 23/04 - Signalling devices actuated by tyre pressure mounted on the wheel or tyre

Abstract

The invention relates to a method for installing a mounting (10) made of elastomer material for an electronic module (11) against a wall of a tyre (12), including the steps in which: i) a moulding cavity (2) is provided in a mould (1); ii) a non-vulcanised mounting (10) is arranged in said moulding cavity (2); and iii) the non-vulcanised mounting (10) is vulcanised simultaneously with the other elements that make up the tyre.

IPC Classes  ?

• B29D 30/00 - Producing pneumatic or solid tyres or parts thereof

Abstract

The present invention relates to a compound of formula (II) and its use in the preparation of a functional or telechelic polyolefin: Y((CH2)P-B')m (II) m = 2 or 3; Y being and alkaline earth or zinc when m = 2, Y being aluminium when m = 3; B' being selected from the group comprising N(SiMe3)2; N(SiMe2CH2CH2SiMe2); C6F5; C3F7; C6F13; para-C6H4-NMe2; para-C6H4-0-Me; para-C6H4-N(SiMe3)2; and CH(OCH2CH20); p being an integer between 0 and 50.

IPC Classes  ?

• C07F 7/08 - Compounds having one or more C—Si linkages

Abstract

The present invention relates to an aeroplane tyre and, in particular, to its protective reinforcement, and has the objective of increasing its resistance to perforation and cutting by foreign objects. According to the invention, the protective reinforcement (3) has a mean radial thickness T at least equal to 2 times the diameter D of a reinforcer (4), the protective reinforcement (3) comprises, on its radially inner face (31) and on its radially outer face (32), respectively, parts made of an elastomer compound (7) having an axial width W at least equal to the diameter D of a reinforcer (4), and the trajectory of any reinforcer (4) of the protective reinforcement (3), in the circumferential direction (XX') of the tyre, varies radially between the first radially inner face (31) and the second radially outer face (32), such that the trajectories of the reinforcers (4) of the protective reinforcement (3) together form a three-dimensional lattice.

IPC Classes  ?

• B60C 9/26 - Folded plies
• B60C 9/18 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers

Abstract

The present invention relates to an aeroplane tyre and, in particular, to its protective reinforcement, and has the objective of increasing its resistance to perforation and cutting by foreign objects. According to the invention, the protective reinforcement (3) has a mean radial thickness T at least equal to 2 times the diameter D of a reinforcer (4), comprises, on its radially inner face (31) and on its radially outer face (32), respectively, parts made of an elastomer compound (7) having an axial width W at least equal to the diameter D of a reinforcer (4), and the trajectory of any reinforcer (4), in the circumferential direction (XX'), varies radially between the first radially inner face (31) and the second radially outer face (32), such that the trajectories of the reinforcers (4) of the protective reinforcement (3) together form a three-dimensional lattice. Moreover, the trajectory of any reinforcer (4), in the circumferential direction (XX'), is a zigzag curve extending axially across the entire axial width L of the protective reinforcement (3).

IPC Classes  ?

• B60C 9/26 - Folded plies
• B60C 9/18 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers

Abstract

The invention relates to a textile cord (50) having an at least triple twist (T1, T2, T3), comprising at least N strands (20a, 20b, 20c, 20d), where N is greater than 1, which are twisted together to a final twist T3 in a final direction D2, each strand being made up of M pre-strands (10a, 10b, 10c), where M is greater than 1, which pre-strands are in turn twisted to an intermediate twist T2 (T2a, T2b, T2c, T2d) in an intermediate direction D1 which is opposite to D2, with every pre-strand consisting of a spun fibre (5) that has been twisted on itself to an initial twist T1 (T1a, T1b, T1c) in the direction D1, wherein at least half the N times M spun fibres have an initial modulus of elasticity Mi greater than 800 cN/tex. This textile cord can advantageously be used as reinforcement in vehicle pneumatic tires, especially in the belt or the carcass ply of said pneumatic tires.

IPC Classes  ?

• D02G 3/48 - Tyre cords

Abstract

The invention relates to an aramid textile cord (50) having an at least triple twist (T1, T2, T3), comprising at least N strands (20a, 20b, 20c, 20d), where N is greater than 1, which strands are twisted together to a final twist T3 in a final direction D2, each strand being made up of M pre-strands (10a, 10b, 10c), where M is greater than 1, which pre-strands are in turn twisted to an intermediate twist T2 (T2a, T2b, T2c, T2d) in an intermediate direction D1 which is opposite to D2, with every pre-strand consisting of a spun fibre (5) that has been twisted on itself to an initial twist T1 (T1a, T1b, T1c) in the direction D1, wherein at least half the N times M spun fibres are spun aramid fibres. The textile cord can advantageously be used as reinforcement in vehicle pneumatic tires, especially in the belt or the carcass ply of said pneumatic tires.

IPC Classes  ?

• D02G 3/48 - Tyre cords

Abstract

The invention relates to a high modulus textile cord (50) having an at least triple twist (T1, T2, T3), comprising at least N strands (20a, 20b, 20c, 20d), where N is greater than 1, which strands are twisted together to a final twist T3 in a final direction D2, each strand being made up of M pre-strands (10a, 10b, 10c), where M is greater than 1, which pre-strands are in turn twisted to an intermediate twist T2 (T2a, T2b, T2c, T2d) in an intermediate direction D1 which is opposite to D2, wherein every pre-strand consists of a spun fibre (5) that has been twisted on itself to an initial twist T1 (T1a, T1b, T1c) in the direction D1 and wherein at least half the N times M spun fibres have an initial modulus of elasticity Mi greater than 2000 cN/tex. The textile cord can advantageously be used as reinforcement in vehicle pneumatic tires, especially in the belt or the carcass ply of said pneumatic tires.

IPC Classes  ?

• D02G 3/48 - Tyre cords

Abstract

The invention relates to a tire tread comprising at least one groove defined by two facing sidewalls (21, 22), said sidewalls being connected to one another by a groove bottom (20), said tread being such that at least one groove (2) comprises a plurality of noise-reducing devices (5), each device comprising at least two flexible strips, a first flexible strip (500) rigidly connected to the groove bottom (20) and provided to bend about a first axis and a second flexible strip (51, 52) rigidly connected to a sidewall defining the groove and provided to bend about a second axis, said tread being such that the strips have geometries suitable for mutually engaging with each other in order to close at least 70% of the cross-section of the groove, and such that the thickness of the first flexible strip (500) supported by the groove bottom is less than the thickness of each second flexible strip (51, 52) supported by a sidewall.

IPC Classes  ?

• B60C 11/04 - Tread patterns in which the raised area of the pattern consists only of continuous circumferential ribs, e.g. zig-zag
• B60C 11/13 - Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping

Abstract

The present invention concerns an elastomeric laminate comprising a layer A consisting of a diene rubber composition, a layer B comprising a highly unsaturated diene elastomer B, n layers Ci disposed between layer A and layer B, n being an integer ≥2, i being an integer ranging from 1 to n, layer C1 being disposed between layer A and layer C2, layer Cn being disposed between layer B and layer Cn-1, layer Ci being disposed between Ci-1 and layer Ci+1 for values of i ranging from 2 to n-1 when n >2, layer C1 comprising a diene elastomer E comprising ethylene units and more than 10% by weight of diene units, layer Cn comprising a highly unsaturated diene elastomer N, the content expressed in phr of diene elastomer N being higher in layer Cn than in layer C1, the content expressed in phr of diene elastomer E being higher in layer C1 than in layer Cn, when n >2, layers Ci comprising a diene elastomer I chosen from the group consisting of diene homopolymers and copolymers having more than 10% by weight of diene units, for values of i ranging from 2 to n-1. Such a laminate has good resistance against the separation of the layers that constitute same.

IPC Classes  ?

• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 25/14 - Layered products essentially comprising natural or synthetic rubber comprising copolymers in which synthetic rubber constituents predominate
• B32B 25/16 - Layered products essentially comprising natural or synthetic rubber comprising polydienes or poly-halodienes
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C09J 123/06 - Polyethene
• C09J 123/12 - Polypropene
• C08L 23/06 - Polyethene
• C08L 23/12 - Polypropene

Abstract

The present invention concerns an aircraft tyre and, in particular, the protective reinforcement of same, and has the aim of increasing the resistance of same to puncturing and cutting by foreign objects. According to the invention, the protective reinforcement (3) has an average radial thickness T at least equal to twice the diameter D of a reinforcement (4), comprises respectively on the radially inner face (31) of same and on the radially outer face (32) of same parts made from an elastomer mixture (7) having an axial width W at least equal to the diameter D of a reinforcement (4) and the path of any reinforcement (4), in the circumferential direction (XX'), varies radially between the first radially inner face (31) and the second radially outer face (32), in such a way that the set of paths of the reinforcements (4) of the protective reinforcement (3) constitutes a three dimensional lattice. Moreover, the protective reinforcement (3) comprises a first family of reinforcements (41) each having a path, in the circumferential direction (XX'), contained in a circumferential plane (XZ) and a second family of reinforcements (42) each having a path, in the circumferential direction (XX'), in a zigzag curve.

IPC Classes  ?

• B60C 9/26 - Folded plies
• B60C 9/18 - Structure or arrangement of belts or breakers, crown-reinforcing or cushioning layers

Abstract

The invention relates to a cellulose textile cord (50) having an at least triple twist (T1, T2, T3), comprising at least N strands (20a, 20b, 20c, 20d), where N is greater than 1, which strands are twisted together to a final twist T3 in a final direction D2, each strand being made up of M pre-strands (10a, 10b, 10c), where M is greater than 1, which pre-strands are in turn twisted to an intermediate twist T2 (T2a, T2b, T2c, T2d) in an intermediate direction D1 which is opposite to D2, with every pre-strand consisting of a spun fibre (5) that has been twisted on itself to an initial twist T1 (T1a, T1b, T1c) in the direction D1, wherein at least half the N times M spun fibres are spun cellulose fibres. The textile cord can advantageously be used as reinforcement in vehicle pneumatic tires, especially in the belt or the carcass ply of said pneumatic tires.

IPC Classes  ?

• D02G 3/48 - Tyre cords

Abstract

The invention concerns a self-powered electronic system, intended to be embedded in a tyre installed on a vehicle or aircraft, the system comprising: an electronic device for measuring and/or recording (11) data concerning the vehicle or the use of same, · means for transmitting said data (13) to a remote querying system, the system being characterised in that it further comprises a medium for storing passive data (10), that can be remotely queried, and means for communicating between the electronic recording device and the passive storage medium.

IPC Classes  ?

• G07C 5/00 - Registering or indicating the working of vehicles
• G07C 5/08 - Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle, or waiting time

Abstract

The invention relates to a tire tread (1) having a tread surface (10) intended to come into contact with a road surface and comprising at least one groove (2) having a depth P and defined by two facing sidewalls (21, 22), said sidewalls being connected to one another by a bottom (20), at least one groove comprising a plurality of closure devices (5) to reduce the resonant noise generated by said groove during driving, each device (5) comprising at least two series of flexible strips, a first series (50) being connected to the bottom (20) of the groove and provided to bend about a first axis (XX') and at least a second series (51) connected to a sidewall defining the groove, said second series (51) being provided to bend about a second axis (ΥΥ'), said second axis being separate from the first axis, said tread being such that each second series (51) comprises at least two flexible strips (511) extending across at least half the width of the groove, the flexible strips of the first and second series having matching geometries suitable for mutually engaging with each other in order to close at least 70% of the cross-section of the groove.

IPC Classes  ?

• B60C 11/13 - Tread patterns characterised by the groove cross-section, e.g. for buttressing or preventing stone-trapping

Abstract

The invention relates to a tyre for a rolling assembly comprising a rim and a tyre, said tyre having at least one carcass reinforcement (2) comprising an inner wall (2a) surmounted radially on the outside by a crown reinforcement (3), which is itself radially on the inside of a tread (4) having two axially outermost ends, said crown reinforcement (3) being made up of at least one layer of reinforcing elements, said tread (4) being connected to two beads (5) by way of two sidewalls (6), said beads (5) being intended to come into contact with a rim (7) having rim flange tops (7b), each bead (5) having at least one circumferential reinforcing element, said sidewalls (6) having, on their outer surfaces, a series of protuberances (8) alternating with recesses (9), said tread (4) comprising, at at least one axially outermost end (4a), a circumferential furrow (10), characterized in that each protuberance (8) is disposed at the surface of a sidewall, the different protuberances being disposed in a regular or irregular manner, and in a continuous or discontinuous manner, between a point A and a point E, and in that the inner wall (2a) of the carcass ply (2) of the tyre is partially or entirely covered with at least one layer of a self-sealing composition (2b).

IPC Classes  ?

• B60C 13/02 - Arrangement of grooves or ribs
• B60C 19/12 - Puncture preventing arrangements
• B60C 13/00 - Tyre sidewallsProtecting, decorating, marking, or the like, thereof

Abstract

The invention relates to a process for preparing a modified natural rubber comprising the following steps: a) a step of oxidation of the natural rubber leading to the generation of an oxidized natural rubber, then b) a step of reaction of the oxidized natural rubber with a modifier of the following formula (I): n being an integer greater than or equal to 1, X being an oxygen atom or a group selected from alkylene, arylene, aralkylene, alkylenoxy, arylenoxy and aralkylenoxy groups, R being a group that is interactive with respect to a reinforcing filler.

IPC Classes  ?

• C08C 19/04 - Oxidation
• C08C 19/22 - Incorporating nitrogen atoms into the molecule

Abstract

The invention relates to an elastomer laminate comprising three layers, the first layer consisting of a diene rubber composition comprising a first elastomer matrix; the second layer consisting of a diene rubber composition comprising a second elastomer matrix, which second elastomer matrix comprises a second ethylene terpolymer elastomer consisting of an α-olefin and an unconjugated diene and containing more than 10% by mass diene units; the third layer consisting of a diene rubber composition comprising a third diene elastomer with a diene unit mass rate greater than 50%, the second layer being disposed between the first layer and the third layer. A laminate of this type has good resistance to separation of its constituent layers.

IPC Classes  ?

• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 25/14 - Layered products essentially comprising natural or synthetic rubber comprising copolymers in which synthetic rubber constituents predominate
• B32B 25/16 - Layered products essentially comprising natural or synthetic rubber comprising polydienes or poly-halodienes
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C09J 123/06 - Polyethene
• C09J 123/12 - Polypropene
• C08L 23/06 - Polyethene
• C08L 23/12 - Polypropene

Abstract

The invention relates to an elastomer laminate comprising three layers, the first layer consisting of a diene rubber composition comprising a first elastomer matrix; the second layer consisting of a diene rubber composition comprising a second elastomer matrix, which second elastomer matrix comprises a second elastomer comprising ethylene units and diene units comprising a carbon-carbon double bond, the units being statistically distributed within the second elastomer; the third layer consisting of a diene rubber composition comprising a third diene elastomer with a diene unit mass rate greater than 50%, the second layer being disposed between the first layer and the third layer. A laminate of this type has good resistance to separation of its constituent layers.

IPC Classes  ?

• B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
• B32B 25/14 - Layered products essentially comprising natural or synthetic rubber comprising copolymers in which synthetic rubber constituents predominate
• B32B 25/16 - Layered products essentially comprising natural or synthetic rubber comprising polydienes or poly-halodienes
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C09J 123/06 - Polyethene
• C09J 123/12 - Polypropene
• C08L 23/06 - Polyethene
• C08L 23/12 - Polypropene
• C08K 3/04 - Carbon

Abstract

Present invention provide a molding element (1) for a mold used for manufacturing a tire having an intended rotational direction and/or a tire axial orientation, the molding element (1) having an inner molding surface for a tread including a treated mold surface (2) with predetermined unevenness so as to form a contact face of the tire as a treated tread surface which improves performance of the tire during break-in period, the molding element (1) comprising at least one measurement zone (4) being devoid of the predetermined unevenness and placed in the treated mold surface, characterized in that the measurement zone (4) indicates at least one of the intended rotational direction and a tire axial orientation.

IPC Classes  ?

• B29C 33/02 - Moulds or coresDetails thereof or accessories therefor with incorporated heating or cooling means
• B29C 33/42 - Moulds or coresDetails thereof or accessories therefor characterised by the shape of the moulding surface, e.g. ribs or grooves
• B29C 35/02 - Heating or curing, e.g. crosslinking or vulcanising
• B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts
• B60C 11/03 - Tread patterns

Abstract

The invention relates to a method for producing at least first and second assemblies (26, 28) of M1 wire-type elements and M2 wire-type elements, at least one of the first and second assemblies (26, 28) comprising a plurality of the wire-type elements (14) wound together in the form of a helix. The method comprises a step of assembling M wire-type elements (14) together in a layer of the M wire-type elements (14) around a transitional core (16) in order to form a transitional assembly (22), and a step of splitting the transitional assembly (22) into at least the first and second assemblies (26, 28) of M1 wire-type elements and M2 wire-type elements.

IPC Classes  ?

• D07B 3/00 - General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
• D07B 7/02 - Machine detailsAuxiliary devices
• D02G 3/48 - Tyre cords
• D07B 1/06 - Ropes or cables built-up from metal wires, e.g. of section wires around a hemp core

Abstract

The invention relates to a facility (10) that allows the production of at least first and second assemblies (26, 28) of M1 wire-type elements and M2 wire-type elements, comprising a plurality of the wire-type elements (14) wound together in the form of a helix. The facility (10) comprises: means for assembling M wire-type elements (14, 17) together in a layer of M wire-type elements (17) around a transitional core (16) in order to form a transitional assembly (22), and means (24) for splitting the transitional assembly (22) into at least the first and second assemblies (26, 28) of M1 wire-type elements and M2 wire-type elements.

IPC Classes  ?

• D07B 7/02 - Machine detailsAuxiliary devices
• D07B 3/00 - General-purpose machines or apparatus for producing twisted ropes or cables from component strands of the same or different material
• D02G 3/28 - Doubled, plied, or cabled threads

Abstract

The invention relates to a tyre provided with an outer sidewall, said outer sidewall including at least one elastomeric composition made from: a) an elastomeric matrix including at least one diene elastomer, b) a cross-linking system, and c) at least one polymer that is incompatible with the elastomeric matrix. The invention also relates to a method for preparing an elastomeric composition for an outer sidewall.

IPC Classes  ?

• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08L 7/00 - Compositions of natural rubber

Abstract

A rubber composition, which can be used in particular as tread(s) for winter tire(s) capable of rolling over ground surfaces covered with ice or black ice, while at least maintaining or even improving a grip on wet, comprising a diene elastomer, between 50 and 150 phr of a reinforcing filler, between 20 and 160 phr of a plasticizer comprising more than 10 phr and less than 80 phr of a vegetable oil, between 2 and 40 phr of microparticles of a water soluble sulfate of an alkali metal or an alkaline earth metal.

IPC Classes  ?

• C08L 9/00 - Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
• B60C 1/00 - Tyres characterised by the chemical composition or the physical arrangement or mixture of the composition
• C08K 3/00 - Use of inorganic substances as compounding ingredients
• C08K 3/04 - Carbon
• C08K 3/24 - AcidsSalts thereof
• C08L 7/00 - Compositions of natural rubber
• C08L 91/00 - Compositions of oils, fats or waxesCompositions of derivatives thereof

Abstract

Present invention provides a tread (1) for a tire having a contact face (2) intended to come into contact with ground, the contact face (2) being given surface treatment so as to have a treated surface for improving performance during break-in period and having at least one indication (4) indicating at least one of a intended rotational direction DR and a axial orientation DA, the tread being characterized in that the indication (4) is formed by being devoid of the surface treatment. According to the present invention tire mounding efficiency is enhanced while easy recognition of tire break-in completion is obtainable.

IPC Classes  ?

• B60C 11/00 - Tyre tread bandsTread patternsAnti-skid inserts