Abstract: A seat underframe for motor vehicle seats, with two pairs of rails arranged at a distance from each other and each having a seat rail and a floor rail, a seat carrier, in each case two pivoting arms which are connected at one end in an articulated manner to the seat carrier and at the other end in an articulated manner to the seat rails and fix the maximum distance between the seat carrier and the seat rails, and a drive unit adjusting the seat carrier between a lower starting position and an end position. The drive unit for adjusting the seat carrier is formed beyond a height end position which is fixed during normal operation.

Abstract: The spindle drive of an adjustment device of a motor vehicle seat comprises a spindle (24) and a nut unit (28), wherein the nut unit (28) comprises a nut (30) made from plastic and a retainer. The nut (30) is in engagement with the spindle (24) by means of an internal thread (34) and retained in the retainer. The nut (30) has an outer jacket comprising recesses (38, 40). The retainer is configured as a tube section (32) comprising an inner space adapted to the outer jacket. The tube section (32), in the area of the recesses (38, 40) is deformed towards the inside such that material of the tube section (32) is located within the recesses (38, 40).

Abstract: A wobble joint fitting for an adjustment device of a motor vehicle seat, in particular for a seat back hinge fitting, comprises (a) a first fitting part comprising an internal ring gear, (b) a toothed eccentric gear that engages the internal ring gear and that has an eccentric hole, (c) an eccentric to which a rotatable drive part is associated and which comprises wedge segments, (d) a second fitting part that is adjustable with respect to the first fitting part, and (e) a wrap spring. The wrap spring is a flat open spring ring and extends over an angle of less than 360°. The eccentric gear comprises a collar for the spring ring to fit against.

Abstract: A wobble joint fitting for an adjustment device of a motor vehicle seat, in particular for a seat back hinge fitting, comprises (a) a first fitting part comprising an internal ring gear, (b) a toothed eccentric gear that engages the internal ring gear and that has an eccentric hole, (c) an eccentric to which a rotatable drive part is associated and which comprises wedge segments, (d) a second fitting part that is adjustable with respect to the first fitting part, and (e) a wrap spring. The wrap spring is a flat open spring ring and extends over an angle of less than 360°. The eccentric gear comprises a collar for the spring ring to fit against.

Abstract: A length adjustable steering column module for a motor vehicle has a support beam attachable to the motor vehicle. The module includes a steering column rotatable about a longitudinal axis, and has an upper and a lower steering tube. The upper steering tube is displaceable in the direction of the longitudinal axis and is non-rotatably connected to the lower steering tube. An adjusting device adjusts the distance of the upper steering tube from the lower steering tube. A jacket tube has an annular area, a crash member, and an upper and a lower end portion, the upper end portion grasps around the upper steering tube, and axially fixes and rotatably supports the upper steering tube. A central bearing is disposed between the annular area and the upper steering tube. The crash member, located between the central bearing and the lower end portion, shortens in the event of an accident.

Abstract: The invention relates to a longitudinal adjustment device of a motor vehicle seat, comprising a stationary bottom rail connectable to a motor vehicle and a seat rail connectable to the vehicle seat and longitudinally displaceably supported on the bottom rail between a front and a rear end position. In order to provide a longitudinal adjustment device which protects the seat rail against a crash-induced displacement with respect to the bottom rail in the area of its rear end position, it is provided that the detachment lock in effective connection with the bottom rail and the seat rail in the area of their rear end position is formed in such a manner that it blocks a crash-induced separation of the seat rail from the bottom rail.

Abstract: Disclosed is an adjustment device for a motor vehicle seat having an adjusting element adjustably disposed in its longitudinal direction and in the area of one end, connectable in an articulated manner to a vehicle seat structure, and a drive unit driving the adjusting element. In order to provide an adjustment device of the initially named type, that can be disposed at a vehicle seat component in a simple and reliable manner, it is provided that the drive unit comprises means for the articulated, particularly pivotal, connection to a vehicle seat component, particularly a side member of a seat base frame.

Abstract: A wobble joint fitting for a vehicle seat has a first joint arm, which carries an internal gear and forms a first bearing surface, which are central to a main axis, and a second joint arm to which an eccentric gear is allocated, which comprises an externally toothed pinion and a second bearing surface. The pinion and the second bearing surface are central to an eccentric axis. An eccentric driving part is disposed in the area between the first bearing surface and the second bearing surface. Clamping parts, in a clamping state, displace the eccentric axis relative to the main axis. The eccentric driving part defines the eccentric. The rotary drive of the eccentric driving part causes a rotation of the pinion relative to the internal gear even without the clamping parts being present, wherein only play compensation is not obtained without the presence of the clamping parts.

Abstract: An adjustable motor vehicle seat comprises an adjustment device. The adjustment device comprises a spindle drive equipped with a spindle, and having a first articulation area and a second articulation area. The adjustment device is adjustable in an adjustment direction. The spindle extends in an angle of one of alpha (?) >2° and alpha >10°, to the adjustment direction.

Abstract: An under-frame apparatus for a motor vehicle seat may include a basic body, a seat frame adjustable with respect to the basic body between an utmost rear and front positions, a pair of front and rear vibration levers joint-connected to the basic body and the seat frame, respectively, an adjustment arm joint-connected one of the front and rear vibration levers and including a saw teeth engagement part on a free end region thereof, an adjustment device rotatably coupled to the seat frame and engaged to the free end region to adjust a position of the seat frame with respect to the basic body, wherein the adjustment device includes a pinion gear engaged to the adjustment arm and driven by an operation unit, and an elastic member attached to the seat frame and applying a restoring force to the seat frame toward a starting position.

Abstract: The rail of a longitudinal guide of a longitudinal adjustment device of a motor vehicle seat includes one rail profile, at least one bearing block including a bearing hole, a bearing shaft extending through the bearing hole and a flap, which is pivotal about the bearing shaft. The bearing block is made from the material of the rail profile by cutting out a border of the bearing block and by bending the thus obtained blank for the bearing block about a bending line.

Abstract: The invention relates to an adjustment device of an automotive vehicle. It comprises a movable adjustment part the position of which is adjustable according to the user's wishes. The adjustment part comprises at least a first piece and a second piece. These pieces are fixedly joined together in a connection region. Each piece comprises a border that is connected to the border of the other piece in the connection region. One piece may be made from a higher quality material and the other piece from a lower quality material. One piece may be made from a thinner material and the other piece from a thicker material.

Abstract: An actuator for an electric adjusting device of a vehicle seat has several adjusting functions. The actuator includes a frame, an electric drive motor disposed on the frame, having an output shaft and a pinion gear disposed on the output shaft, and rotating between a first position and a second position, a first toothed wheel disposed on the frame and engaging with a pinion gear at a first position of the drive motor, a second toothed wheel disposed on the frame and engaging with the pinion gear at a second position of the drive motor, and an adjusting unit disposed on the frame and selectively moving an electric or mechanical actuating part and a motor to the first position or the second position.

Abstract: The invention relates to an adjustment device for a motor vehicle seat having an adjusting element adjustably disposed in its longitudinal direction and in the area of one end, connectable in an articulated manner to a vehicle seat structure, and a drive unit driving the adjusting element. In order to provide an adjustment device of the initially named type, that can be disposed at a vehicle seat component in a simple and reliable manner, it is provided that the drive unit comprises means for the articulated, particularly pivotal, connection to a vehicle seat component, particularly a side member of a seat base frame.

Abstract: A forward tiltable motor vehicle seat having a seat carrier, a seat back and a hinge mounting arranged therebetween. The hinge mounting has an upper hinge arm connected to the seat back and a lower hinge arm hinged to the seat carrier about a forward tilt axis. The hinge mounting comprises a locking device on one seat side and at least one detent bight that is arranged to move together with the upper hinge arm on the other seat side. A movable detent part is provided and comprises at least one detent projection that: cooperates with the detent bight, is normally not engaged with the detent bight, and when the seat back is tilted forward about the forward tilt axis, is at least ready for engagement with the detent bight or engaged therewith.

Abstract: The invention relates to a headrest for motor vehicle seats, comprising an upholstery support (2), a support rod (3) displaceably arranged relative to the upholstery support (2), connecting the headrest (1) to a backrest of the motor vehicle seat and at least two bearing elements (4) arranged in the longitudinal axial direction of the support rod (3), spaced apart from one another on the upholstery support (2) and at least partially encompassing the support rod (3), for guiding the support rod (3), the bearing elements (4) being elastically pretensioned in the direction of the support rod (3). In order to provide a headrest which permits a rattle-free arrangement of the upholstery support on the support rod and which has easy adjustability, it is provided that the bearing elements (4) comprise guide webs (20) distributed over their inner periphery, protruding toward the support rod (3) and extending in the longitudinal axial direction of the support rod (3).

Abstract: The invention relates to a longitudinal adjustment device of a motor vehicle seat, comprising a stationary bottom rail connectable to a motor vehicle and a seat rail connectable to the vehicle seat and longitudinally displaceably supported on the bottom rail between a front and a rear end position. In order to provide a longitudinal adjustment device which protects the seat rail against a crash-induced displacement with respect to the bottom rail in the area of its rear end position, it is provided that the detachment lock in effective connection with the bottom rail and the seat rail in the area of their rear end position is formed in such a manner that it blocks a crash-induced separation of the seat rail from the bottom rail.

Abstract: The base frame of the motor vehicle seat comprises two rail pairs, two front rockers, two rear rockers and one seat support. The seat support has two side parts, a front cross member and a rear cross member. Each rail pair is hinged to a side part via a front rocker and a rear rocker. An adjustment device is provided for the height adjustment of the seat support. A rocker is connected to a transverse part. A support part is provided which is connected to the transverse part and comprises a hinge area for an adjustment part of the adjustment device and a contact area on the adjacent cross member.

Abstract: An adjustable hinge mountings has a first hinge arm, a second hinge arm, a toothed quadrant centered on a hinge axis and connected to the first hinge arm, a detent part which has a toothed surface feature cooperating with the toothed quadrant and a control part associated with the detent part. The hinge arms can be pivoted between an active angular range in which the detent part is allowed to engage the toothed quadrant and a passive angular range in which the detent part is not located opposite the toothed quadrant so that the detent part is not allowed to engage the toothed quadrant. In the passive angular range, the detent part is retained by the control part in a passive position in which it is not in the range of movement of the toothed quadrant. In the active angular range, the detent part adopts an active position in which the detent part can be brought into engagement with the toothed quadrant.

Abstract: The actuator for a motor vehicle has an electric motor having an output shaft. A gear comprising a spindle nut and a gear case is connected to the output shaft. A spindle engages the spindle nut. A bracket forms an at least partial surrounding grip abut the gear case. A pivot bearing is provided between the gear case and the bracket. Further, an abutment lying substantially opposite the pivot bearing is formed between the gear case and the bracket.