The present invention relates to an assembly for rotating a vehicle steering column connected to a steering mechanism comprising: - a fixed support element; - a central steering shaft (14) mounted so as to rotate with respect to the fixed support element (16); - and an angular end-of-travel stop device, which limits the angular travel of the central steering shaft (14) with respect to the fixed support element and which comprises: -- a rotating front ring (26) rotatably connected to the central steering shaft (14); -- a fixed rear ring rotatably connected to the fixed support element (16); characterized in that an elastically deformable member (32), axially interposed between the rotating front ring (26) and an axial bearing element connected to the central steering shaft (14), ensures a rotational elastic return function. Figure for the abstract: 5
The present invention relates to an assembly for rotating a steering column comprising a fixed support element (16), a steering shaft (14) and an angular end-of-travel stop device which comprises a rotating front ring (26) connected in rotation to the steering shaft, a fixed rear angular-stop ring (28), and at least one intermediate transmission ring (30i) interposed axially between the rotating front ring (26) and the fixed rear ring (28), and wherein the rotating front ring (26), the at least one intermediate ring (30i) and the fixed rear ring (28) comprise means for mutual driving in rotation, characterized in that the rotating front ring (26) and the fixed rear ring (28) each comprise means for radial centring of the intermediate ring (30i) which is traversed axially, with a radial clearance, by the central steering shaft (14).
The present invention relates to a steering column assembly for a vehicle, the assembly comprising: - a column body that is intended to be mounted on a vehicle structure; - an arm mounted so as to be translatable relative to the column body between a retracted state and a deployed state, the position of a steering wheel of the vehicle being dependent on the positional state of the arm; - an electromechanical actuator (24) comprising: -- an electric rotational drive motor (26); -- a transmission system (28) comprising a movement converter assembly (30) for converting a rotation provided by the electric motor into a translation of the arm; -- a module for evaluating the positional state of the arm, the module comprising: -- two detectors (44a, 44b) that emit signals in response to a rotation of an element of the transmission system; -- a computing unit (46) that communicates with the two detectors.
A sleeve of a steering column includes (i) an outer tube and an inner tube that are movable relative to each other, and (ii) an adjustment system. The adjustment system includes a screw for adjusting the axial position along an adjustment axis constrained to move in translation with a first of the two elements by at least two guide bearings for rotationally guiding the adjusting screw about the adjustment axis. At least one of the bearings supporting the adjusting screw is a guide bearing with axial force take-up for blocking the translational movement of the adjusting screw.
B62D 1/181 - Steering columns yieldable or adjustable, e.g. tiltable with power actuated adjustment, e.g. with position memory
B62D 1/185 - Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
F16C 19/16 - Bearings with rolling contact, for exclusively rotary movement with bearing balls essentially of the same size in one or more circular rows for both radial and axial load with a single row of balls
F16C 19/36 - Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with a single row of rollers
5.
Steering column sleeve comprising a system for adjusting a relative position between two tubes
A steering column sleeve includes (i) a translationally movable outer tube and inner tube, and (ii) an adjusting system for adjusting the relative position of the tubes. The adjusting system includes a screw for adjusting the axial position of the two elements. The adjusting system further includes an adjusting device for adjusting a resistance force opposing the relative movement between the tubes. The adjusting device has a friction pad and a clamping surface against which the friction pad moves between operating and adjustment positions. The adjusting system also includes a kinematic chain so that, beyond a threshold resistance torque transmitted by the screw to a single motor that it drives, its torque is transmitted to the adjusting device so as to move the friction pad from its operating position to its adjustment position.
A steering column sleeve includes two elements made up of an outer tube and an inner tube, and a system for adjusting a resistive force against a relative translational movement between the elements. A friction pad is supported by a first of the elements, and a clamping surface is rigidly connected to a second of the elements, wherein the friction pad is configured to contact and bear on the clamping surface, and an adjustment mechanism. The adjusting mechanism includes a cam bearing on a support member to generate a variation in pressure of the friction pad on the clamping surface parallel to a reference axis that is fixed relative to the first element, between a use position and an adjustment position. The adjustment mechanism of the adjustment system is configured to generate a relative rotational movement between the cam and the support member about the reference axis.
B62D 1/184 - Mechanisms for locking columns at selected positions
B62D 1/181 - Steering columns yieldable or adjustable, e.g. tiltable with power actuated adjustment, e.g. with position memory
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
An X-axis steering column includes a cap, a U-shaped tab attached to the cap, and an upper tube that slides relative to a lower tube. An attachment for attaching the cap to the U-shaped tab includes two screws and at least one stop in contact with at least one lateral groove. The at least one stop is configured to absorb lateral loads without any longitudinal movement of the steering column being impeded, including during adjustment of the steering column or during an impact due to a collision.
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
B62D 1/184 - Mechanisms for locking columns at selected positions
8.
Method for detecting an absolute angular position or an absolute angular movement path of a rotating member
A multi-pole annular encoder having 2N poles distributed irregularly is positioned facing a sensor that detects transitions between the poles. Times corresponding to the detected transitions are stored and the times that have elapsed between each transition and the previous transition of order 2N, which constitute durations for a complete revolution of a rotating member, are calculated. When the durations thus calculated are stable, a time that has elapsed between a tested transition and the previous transition is calculated, and a characteristic angle of the tested transition is deduced therefrom, this being proportional to a ratio between a time that has elapsed since the previous transition and a stabilized duration for a complete revolution. An index transition is identified and is used to ascertain absolute position of the encoder with respect to the sensor.
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
G01D 5/14 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage
G01D 5/245 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
G01P 3/487 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
9.
SYSTEM FOR ABSORBING COLLISION ENERGY FOR A STEERING COLUMN WITH MOTORISED DEPTH ADJUSTMENT
The invention relates to a system for absorbing collision energy for a steering column (2), preferably with motorised adjustment at least in terms of depth, by sliding an internal tube (8) in an external tube (11) along an adjustment axis (X). The system for absorbing collision energy comprises a blocking device (15) for the internal tube (8) in the external tube (11) comprising an actuator (16) which drives a clamping mechanism (14) which is capable of applying at least one pressure force (F) to the internal tube (8), which brings about an axial friction force which acts counter to the sliding of the internal tube (8) in the external tube (11). The system for absorbing collision energy further comprises a control unit (UC) which is capable of controlling the actuator (16) in order to modulate the at least one pressure force (P) in a travel mode of a vehicle (1) in accordance with parameters which represent a morphology and a position of a driver. In order to control the actuator (16), the control unit (UC) also uses parameters which repre- sent dynamic conditions of the vehicle (1) in travel mode before a collision.
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
10.
Steering column impact energy absorber, with loop closed by a breakaway link
An absorber of steering column shock energy includes a plastically deformable part forming a loop, a breakaway link closing this loop on itself, and a first attachment interface and a second attachment interface separate from the breakaway link and arranged on either side of the loop. The part and the fusible link are arranged so that the exertion of forces in opposite directions on the first attachment interface and on the second attachment interface respectively, causes a stress leading to a deformation of the loop, breaking of the breakaway link and further deformation of the loop after this break.
B62D 1/181 - Steering columns yieldable or adjustable, e.g. tiltable with power actuated adjustment, e.g. with position memory
B62D 1/184 - Mechanisms for locking columns at selected positions
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
11.
SYSTEM FOR ADJUSTING A RESISTIVE FORCE AGAINST A RELATIVE TRANSLATIONAL MOVEMENT BETWEEN TWO TELESCOPIC ELEMENTS
The invention relates to a steering column sleeve (103) comprising two elements made up of an outer tube (101) and an inner tube (102), and a system (100) for adjusting a resistive force against a relative translational movement between the two elements (101, 102), the adjustment system (100) comprising: at least one friction pad (20) that is supported by a first (101) of the two elements (101, 102); a clamping surface (30) rigidly connected to a second (102) of the two elements (101, 102), wherein the friction pad (20) is configured to be in contact with and bear on the clamping surface (30); an adjustment mechanism (10) comprising a cam (11) directly or indirectly bearing on a support member in order to generate a variation in the pressure of the friction pad (20) on the clamping surface (30) parallel to a reference axis (X) that is fixed relative to the first (101) of the two elements (101, 102) so as to vary the pressure exerted by the friction pad (20) on the clamping surface (30) of the second (102) of the two elements (101, 102), between a use position and an adjustment position, wherein the steering column sleeve (103) is characterised in that the adjustment mechanism (10) of the adjustment system (100) is configured to generate a relative rotational movement between the cam (11) and the support member (12) about the reference axis (X).
B62D 1/18 - Steering columns yieldable or adjustable, e.g. tiltable
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
12.
STEERING COLUMN SLEEVE COMPRISING A SYSTEM FOR ADJUSTING A RELATIVE POSITION BETWEEN TWO TUBES
The invention relates to a steering column sleeve (103) comprising a translationally movable outer tube (101) and inner tube (102), and a system (10) for adjusting the relative position of said tubes comprising a screw (200) for adjusting the axial position of the two elements and a device (100) for adjusting a resistance force opposing the relative movement between the tubes, the adjustment device comprising a friction pad and a clamping surface, against which the friction pad moves between operating and adjustment positions, the adjustment system comprising a kinematic chain (12) so that, beyond a threshold resistance torque transmitted by the adjustment screw to a single motor (11) that it drives, its torque is transmitted to the adjustment device so as to move the friction pad from its operating position to its adjustment position.
The invention relates to a sleeve (103) of a steering column comprising an outer tube (101) and an inner tube (102) that are movable relative to each other and an adjustment system (10) comprising a screw (200) for adjusting the axial position along an adjustment axis (X') constrained to move in translation with a first (101) of the two elements (101, 102) by means of at least two guide bearings (211, 212) for rotationally guiding the adjusting screw (200) about the adjustment axis (X'), wherein the steering column sleeve (103) is characterised in that at least one of the bearings (211, 212) supporting the adjusting screw (200) is a guide bearing with axial force take-up for blocking the translational movement of the adjusting screw (200), the engine (11) being offset from the bearings (211, 212).
The present invention relates to a meshing plate (10) of a steering column energy absorbing device, comprising a base plate (9) formed of a first material and comprising a row of first meshing shapes (91) extending along a longitudinal axis (A); the meshing plate comprises lateral protrusions (11) overmoulded onto said base plate so that each comprises a rear abutment surface (92) and/or a lateral bearing surface (93).
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
15.
METHOD FOR DETECTING AN ABSOLUTE ANGULAR POSITION OR AN ABSOLUTE ANGULAR MOVEMENT PATH OF A ROTATING MEMBER
A multi-pole annular encoder (24) whose 2N poles are distributed irregularly is positioned facing a sensor (26) that detects transitions between poles. The times corresponding to the detected transitions are stored and the times that have elapsed between each transition and the previous transition of order 2N, which constitute durations for the complete revolution of the rotating member, are calculated. When the durations thus calculated are stable, the time that has elapsed between a tested transition and the previous transition is calculated, and a characteristic angle of the tested transition is deduced therefrom, this being proportional to a ratio between the time that has elapsed since the previous transition and the stabilized duration for a complete revolution. It is then possible to identify an index transition that makes it possible to ascertain the absolute position of the encoder (24) with respect to the sensor (26).
G01D 5/244 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains
G01D 5/245 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains using a variable number of pulses in a train
G01D 5/246 - Mechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means influencing characteristics of pulses or pulse trainsMechanical means for transferring the output of a sensing memberMeans for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for convertingTransducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains by varying the duration of individual pulses
said device being designed such that the exertion of forces in opposite directions on the support and on the tooth, respectively, brings about stress on the coiled portion of the absorber, tending to deform the latter.
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
B62D 1/184 - Mechanisms for locking columns at selected positions
B62D 1/185 - Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
F16F 7/12 - Vibration-dampersShock-absorbers using plastic deformation of members
The invention relates to an X-axis steering column (1) and comprises a cap (2), a U-shaped tab (3) attached to the cap (2) and an upper tube (4) that slides relative to a lower tube (5), the invention being characterised in that the attachment for attaching the cap (2) to the U-shaped tab (3) comprises two screws and at least one stop (32) in contact with at least one lateral groove (21). Said stop (32) makes it possible for lateral loads to be absorbed without any longitudinal movement of the column (1) being impeded, whether in the event of adjustment thereof or in the event of an impact due to a collision.
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
18.
SHOCK ENERGY ABSORBER OF A STEERING COLUMN WITH LOOP CLOSED BY FUSIBLE LINK
The invention concerns an absorber of steering column shock energy, comprising - a plastically deformable part (4) forming a loop, - a fusible link (40) closing this loop on itself, - a first attachment interface (41) and a second attachment interface (42) separate from the fusible link, arranged on either side of the loop, the part and the fusible link being arranged so that the exertion of forces in opposite directions on the first attachment interface and on the second attachment interface respectively, causes a stress leading to a deformation of the loop, breaking of the fusible link and further deformation of the loop after this break.
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
B62D 1/181 - Steering columns yieldable or adjustable, e.g. tiltable with power actuated adjustment, e.g. with position memory
B62D 1/184 - Mechanisms for locking columns at selected positions
The present invention relates to a modular energy-absorbing device (9) comprising: – a support (91) with fixing portions (81) forming the sole fixings of the device to a steering column, – a deforming member (94) fixedly connected to the support, – an absorber (93) wound around the deforming member and fixedly assembled at each of its ends to the support, – a catching member (96) formed of a component distinct from the support and having a first side fixedly connected to the absorber and a second side having at least one first engagement shape (96a), said device being arranged in such a way that the application of forces, in opposite directions, to the support and to the tooth respectively, leads to stressing of the wound portion of the absorber tending to deform the absorber.
F16F 7/12 - Vibration-dampersShock-absorbers using plastic deformation of members
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
20.
MESHING PLATE OF A DEVICE FOR ABSORBING ENERGY FROM A STEERING COLUMN
The present invention relates to a meshing plate (10) of a device for absorbing energy from a steering column, comprising a base plate (9) formed of a first material and comprising a row of first meshing shapes (91) extending along a longitudinal axis (A); the meshing plate comprises lateral projections (11) overmoulded on the base plate so as to each comprise a rear abutment surface (92) and/or a lateral bearing surface (93).
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
The present invention concerns a clamping mechanism (5) for immobilising an adjustable steering column (1) comprising a lever (6), a clamping screw (7), a radial rack (8) comprising a stop (81), the clamping screw (7) allowing the lever (6) to rotate on the radial rack (8), the lever (6) comprising an opening (61) defining a guide in which the stop (81) slides, characterised in that the opening (61) has a recess (63) in which a braking element (62) constituted by a flexible material is arranged. The stop (81) rubs on the braking element (62) when it moves in the housing (63), thereby causing it to slow down. The friction of the stop (81) on this flexible element slows down the movement of the stop when the lever opens or closes.
Steering column comprising a cradle (21) mounted so that it can tilt on the body of the vehicle and receiving, in a deformable bearing (22), a sleeve (2) provided with a tube bearing the steering wheel. A clamping device (3) comprising a control lever (32) bearing a clamping axis (31) and pressed against a bearing block (34) by a connection with ramps (341) and by an escutcheon (33) with teeth (331). The bearing block (34) has a ramp (341) for each tooth (331) ending in a stop (343) projecting into the circular segments (335) between two teeth (331). One of the teeth (331) has, on its releasing side, a damping element (334).
B62D 1/184 - Mechanisms for locking columns at selected positions
B62D 1/189 - Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustmentSteering columns yieldable or adjustable, e.g. tiltable with tilt and axial adjustment the entire steering column being tiltable as a unit
The invention relates to a steering column with adjustment of the longitudinal extension and the incline of the steering wheel, comprising a sleeve (4) carried by a deformable bearing (2) provided with a clamping mechanism consisting of a clamping axle (51). The deformable bearing (2) has two side limbs (21) that are connected by a cross-member formed by two inclined faces (22) joined by a bottom (23). The two side limbs (21) each form a first side support (7a, 7b) close to the end of the limb (21) and the two inclined faces (22) each form an inclined second side support (7c, 7d) located opposite the first side supports (7a, 7b), the bottom (23) forming an intermediate support (7e) between the two inclined side supports (7c, 7d). The clamping axle (51) passes through the end of the two side limbs (21), beyond the first two side supports (7a, 7b).
B62D 1/184 - Mechanisms for locking columns at selected positions
B62D 1/189 - Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustmentSteering columns yieldable or adjustable, e.g. tiltable with tilt and axial adjustment the entire steering column being tiltable as a unit
A steering column having: an adjustable body intended to be mounted so as to be free to slide on a support and comprising two walls, a tube fixed to the adjustable body, a wedge inside the adjustable body and mobile between an unlocked position and a locking position inside the adjustable body between and at a distance from the walls, driving means and guiding means for the wedge, arranged with the wedge so as to be able to drive the wedge in a simple translation movement so that the wedge can come to bear against the adjustable body to immobilize the adjustable body relative to the wedge.
ROBERTS BOSCH AUTOMOTIVE STEERING VENDÔME (France)
Inventor
Sauquet, Mickael
Carrer, Alain
Bernard, Rémi
Abstract
The present invention relates to a steering column (1) of a vehicle comprising: a supporting base (2) intended for being attached to the chassis and including two clamping walls (20); a steering member intended for being connected to a steering wheel, hingedly mounted on the supporting base and arranged between the clamping walls; a clamping mechanism for locking the column, so that each clamping wall has an inner contact area in contact with an outer contact area of the steering member; in this column, the inner contact areas (28) and/or the outer contact areas have increased roughness compared with the rest of the faces (26) that support them.
A steering column mechanism (10) comprises a lower body (14), an upper tube (16) that is movable depthwise relative to the lower body (14) along an extension and retraction path, in a direction of retraction and in a direction of extension opposite the direction of retraction, and a locking mechanism (34) for locking the upper tube (16) relative to the lower body (14), movable between a locked position and an unlocked position. A retractable stop (58) is movable relative to the lower body (14) and relative to the locking mechanism (34) between an active position and a retracted position. In the active position, the retractable stop (58) limits the travel of the upper tube (16) in the direction of retraction to an adjustment stop position, whereas in the retracted position, it does not interfere with the upper tube (16). The retractable stop (58) is linked to the locking mechanism via an interlock (65) in such a way as to be in the active position when the locking mechanism (34) is in the unlocked position. The lower body (14) comprises one or more supports (76, 78, 96) for at least partially taking up forces generated by the upper tube (16) on the retractable stop (58) when the locking mechanism (34) is in the unlocked position and the upper tube (16) is in the adjustment stop position in abutment against the retractable stop (58). Preferably, the lower body is provided with guide means (74, 76, 78, 90) for guiding the retractable stop between the retracted position and the active position.
B62D 1/184 - Mechanisms for locking columns at selected positions
B62D 1/185 - Steering columns yieldable or adjustable, e.g. tiltable adjustable by axial displacement, e.g. telescopically
B62D 1/19 - Steering columns yieldable or adjustable, e.g. tiltable incorporating energy-absorbing arrangements, e.g. by being yieldable or collapsible
27.
SYSTEM FOR BLOCKING RADIAL MOVEMENT OF THE STEERING COLUMN
The present invention relates to a steering column (1) comprising: - a steering member (3) articulated in rotation to a support base intended to be fixed in relation to the chassis of a vehicle - clamping means for being able to lock the steering member to said support base, - first blocking shapes (14a) borne by a mobile clamping element, - second blocking shapes (15a) borne by a sheet metal plate (11) blocked against the support base, the steering column being arranged in such a way that the first blocking shapes are able, during blocking, to engage between the second blocking shapes so as to block the rotation of the steering member relative to the support base.
B62D 1/184 - Mechanisms for locking columns at selected positions
B62D 1/189 - Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustmentSteering columns yieldable or adjustable, e.g. tiltable with tilt and axial adjustment the entire steering column being tiltable as a unit
B62D 1/187 - Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustmentSteering columns yieldable or adjustable, e.g. tiltable with tilt and axial adjustment
A cam lock mechanism used for locking an adjustable steering column in a position comprises a fixed cam (52) defining a geometric reference plane (101) for the lock mechanism, a tensioning member (16), the tensioning member being able to move at least translationally with respect to the fixed cam parallel to a locking axis (100) perpendicular to the reference plane, in a tensioning direction; and a mobile cam (54) able to move with respect to the fixed cam along a pathway in a locking direction and interacting with the fixed cam in such a way that movement of the mobile cam along the pathway in the locking direction causes translational movement of the tensioning member (16) parallel to the locking axis in the tensioning direction. The mobile cam (54) and the fixed cam (52) are configured in such a way that there is a continuous function linking the movement of the mobile cam in the locking direction with the translational movement of the tensioning member parallel to the locking axis in the tensioning direction, this continuous function having a derivative which is a decreasing non-constant function.
A steering column mechanism (10) comprises a lower body (14), an upper tube (16) that is movable depthwise relative to the lower body (14) along an extension and retraction path, in a direction of retraction and in a direction of extension opposite the direction of retraction, and a locking mechanism (34) for locking the upper tube (16) relative to the lower body (14), movable between a locked position and an unlocked position. A retractable stop (58) is movable relative to the lower body (14) and relative to the locking mechanism (34) between an active position and a retracted position. In the active position, the retractable stop (58) limits the travel of the upper tube (16) in the direction of retraction to an adjustment stop position, whereas in the retracted position, it does not interfere with the upper tube (16). The retractable stop (58) is linked to the locking mechanism via an interlock (65) in such a way as to be in the active position when the locking mechanism (34) is in the unlocked position. The lower body (14) comprises one or more supports (76, 78, 96) for at least partially taking up forces generated by the upper tube (16) on the retractable stop (58) when the locking mechanism (34) is in the unlocked position and the upper tube (16) is in the adjustment stop position in abutment against the retractable stop (58). Preferably, the lower body is provided with guide means (74, 76, 78, 90) for guiding the retractable stop (58) between the retracted position and the active position.
The present invention relates to a steering column comprising: - an adjustable body (20) intended to be mounted so as to slide freely with a support and comprising two walls (26, 27), - a tube attached to said adjustable body, - a chock (40) inside said adjustable body and able to move between an unlocked position and a locked position inside said adjustable body, between said walls (26, 27) and spaced apart from same, - drive means (50) and guidance means (50, 23, 24) of said chock (40), arranged therewith so to drive the chock in a simple translational movement, in such a way that the chock can come to bear against the adjustable body in order to block movement of the adjustable body with respect to said chock.
A steering column mechanism a movable subassembly including a tube body and a steering shaft rotating around an rotation axis in the tube body, and a connecting articulation between the movable subassembly and a fixed support to guide pivoting of the movable subassembly relative to the fixed support around a pivot axis perpendicular to the rotation axis. An antitheft locking mechanism includes a locking body that is movable relative to the fixed support between a retracted position and at least one locking position and a matching member mounted on the shaft. In the locking position, the locking member ensures with the matching member positive locking to lock the rotation of the steering shaft. The locking member and the matching member have, in the locking position, a mutual contact zone which, in reference to a direction parallel to the rotation axis, extends on either side of the pivot axis.
B60R 25/021 - Fittings or systems for preventing or indicating unauthorised use or theft of vehicles operating on vehicle systems or fittings, e.g. on doors, seats or windscreens operating on the steering mechanism restraining movement of the steering column or steering wheel hub, e.g. restraining means controlled by ignition switch
The steering column having a lug, a casing, an inner tube, an outer tube, a steering wheel end-piece, and at least one adjustment gear motor. The lug is axially movable and the column includes a gear motor controlling the lug. Having a movable lug makes it possible to increase the stowing length of the steering wheel. The range of movement is the sum of the movements of the lug and the adjustment gear motor.
The invention relates to an electric locking system (1) for locking the position of a steering column of a vehicle relative to the dashboard of said vehicle, the steering column including a tube-body movably mounted in a supporting assembly for enabling the manual adjustment of said steering column. The locking system includes means (2) for locking the tube-body on the supporting assembly, an electric motor (4) coupled to the locking means (2) for driving the latter and placing the steering column in an unlocked state or a locked state, motor control means providing motor actuation instructions for placing the steering column in the locked state and/or in the unlocked state, and means for detecting the state of the steering column and for generating an electric signal representative of the state of the column.
A steering column including an upper body, two connection flanges for connecting the upper body to a support element, and a tightening and blocking device the upper body in position on an internal tube, where the tightening and blocking device includes a clamp screw extending through the flanges, a set of cams comprising a fixed cam and a movable cam mounted such that it can move freely in translation along the clamp screw and arranged so that it can bear on one of the flanges, a rack capable of cooperating with a notched arrangement provided on the other flange, and a resilient means arranged between the movable cam and the rack in order to exert a return force on the rack in the direction of the notched flange.
B62D 1/18 - Steering columns yieldable or adjustable, e.g. tiltable
B62D 1/184 - Mechanisms for locking columns at selected positions
B62D 1/187 - Steering columns yieldable or adjustable, e.g. tiltable with tilt adjustmentSteering columns yieldable or adjustable, e.g. tiltable with tilt and axial adjustment
The steering column (1) according to the invention includes a lug (3), a casing (2), an inner tube (4), an outer tube (5), a steering wheel end-piece (6), and at least one adjustment gear motor, (7, 8) characterized in that the lug (3) is axially movable and in that the column (1) includes a gear motor (9) controlling the lug (3). Having a movable lug (3) makes it possible to increase the stowing length of the steering wheel. Indeed, the range of movement is the sum of the movements of the lug (3) and the adjustment gear motor (7, 8) whereas, in the prior art, only the outer tube (5) is translatably or vertically movable.
The invention relates to an assembly for a double universal ball joint (10), which comprises a universal joint jaw (12A, 12B) forming a first part, and a ball element (22A, 22B) which can either be integrated in the jaw or form a second part assembled to the first part. The jaw comprises a base (12.1) having a cavity (12.2) for accommodating a shaft end, the cavity (12.2) defining a geometric insertion axis (100A, 100B) for a shaft end, the cavity (12.2) having a constant cross-section between two open axial ends, a geometric shell of the cavity being defined by a generatrix parallel to the geometric insertion axis and describing the constant cross-section of the cavity (12.2) of the base. Two side flanges (12.5) are connected to the base (12.1), the two flanges (12.5) facing one another and defining, therebetween, a space (24A, 24B) for receiving a universal joint journal cross (20A, 20B), the two flanges (12.5) each being provided with a bearing recess (12.6) for guiding the universal joint journal cross (20A, 20B), the two recesses (12.6) defining a pivoting axis (200) of the journal cross, perpendicular to the geometric insertion axis (100). A connecting bridge (12.7) connects the two side flanges (12.5), the two bearing recesses (12.6) being located, in reference to the insertion axis (100), between the base (12.1) and the connecting bridge (12.7). The connecting bridge 12.7) comprises a through-hole (12.8) that is coaxial to the insertion axis (100). The ball element (22A, 22B) can be a female ball element formed by the through-hole (12.7) or an inserted male or female element having an end (22A.1, 22B.1) that has a shape that is complementary to the through-hole (12.8), and accommodated in the through-hole (12.8). The through-hole (12.8) has a cross-section located at all points radially outside of, or coinciding with, the geometric wall of the cavity of the base, which enables the cavity to be machined (12.2) by broaching.
F16D 3/32 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected in which the coupling is specially adapted to constant velocity-ratio by the provision of two intermediate members each having two relatively- perpendicular trunnions or bearings
F16D 3/38 - Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another
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