Abstract: A vehicle seat may have adjustment kinematics and a drive device for driving the adjustment kinematics. The adjustment kinematics may have at least one movable rocker and a transverse tube which is mounted rotatably about an axis of rotation. An end region of the rocker may be connected to the transverse tube for rotation therewith. A toothed segment which is curved about the axis of rotation may be connected to the transverse tube for rotation therewith, and, in order to drive the adjustment kinematics, the toothed segment is rotatable about the axis of rotation by the drive device.

Abstract: An adjusting device for a vehicle seat for adjusting a component of the vehicle seat, may have a tube, a motor and a pinion which is drivable by the motor. The motor and the pinion may be arranged in the tube. In addition, a vehicle seat may have a transverse tube, a component which is movable relative to the transverse tube and the adjusting device for adjusting the component relative to the transverse tube.

Abstract: A gearing assembly for torque transmission may have an epicyclic gearing unit having two ring gears, each having a toothing with a different number of teeth. At least three planetary gears may roll in the two ring gears. One of the ring gears may be stationary and the other ring gear is designed to move. Two of the planetary gears may be bearing gears and a third planetary gear rolls in both ring gears as a force-transmitting gear.

Abstract: A gearing assembly for torque transmission may have an epicyclic gearing unit having two ring gears, each having a toothing with a different number of teeth. At least three planetary gears may roll in the two ring gears. One of the ring gears may be stationary and the other ring gear is designed to move. Two of the planetary gears may be bearing gears and a third planetary gear rolls in both ring gears as a force-transmitting gear.

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: 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: An electrically height-adjustable head rest device of a motor vehicle seat having a head rest, one or two bars carrying the head rest, a cross member, which is connected to at least one bar and comprises an internal thread, and a motor-spindle unit comprising a spindle engaging the internal thread. On the cross member and/or on the motor-spindle unit there is provided a guide seat for a guide part.

Abstract: An electrically height-adjustable head rest device of a motor vehicle seat having a head rest, one or two bars carrying the head rest, a cross member, which is connected to at least one bar and comprises an internal thread, and a motor-spindle unit comprising a spindle engaging the internal thread. On the cross member and/or on the motor-spindle unit there is provided a guide seat for a guide part.

Abstract: A step down gear train for an adjusting device of an automotive vehicle seat which has an input shaft and an output shaft that is connected to a pinion. At least one first cogwheel and one second cogwheel are provided in the path between input shaft and output shaft. A follower wheel is provided, in engagement with the first cogwheel, and is not located in the path between the input shaft and the output shaft. A pusher wheel is provided, that is likewise not located in the path between input shaft and output shaft, and is in engagement with both the follower wheel and the second cogwheel, and is carried so as to be longitudinally slidable. An elastic means is provided, that is associated with the pusher wheel, and which elastically biases said pusher wheel into engagement with the follower wheel and the second cogwheel.

Abstract: A gear train is provided including an output shaft rotatable about an output axis, a housing rotatable relative to the shaft, a toothed washer having a circumferential first toothed surface, an eccentric that is rotatably disposed on the shaft and has an eccentric driving surface offset relative to the axis by an eccentricity, the eccentric comprising a driving region, an annular gear comprising a circumferential second toothed surface, a circumferential third toothed surface and an eccentric driven surface cooperating with the driving surface, a gearwheel comprising a circumferential fourth toothed surface, the first toothed surface of the washer and the second toothed surface of the annular gear meshing together in a first angular position and forming a first nutating gear having the eccentricity and the third toothed surface of the annular gear and the fourth toothed surface of the gearwheel meshing together in a second angular position.

Abstract: A step down gear train, more specifically for an adjusting device of a motor vehicle seat, comprising an output shaft (22) rotating about an output axis (34), a pinion (20) that is connected to the output shaft (22), a housing (24) that comprises a housing portion (26) which is located in immediate proximity to the pinion (20) and has a passageway (28) for the output shaft (22), a first fixed gear wheel having external teeth that is connected to the housing portion (26) and comprises a bearing hole (32) which is centered on the output axis (34), a second gear wheel having external teeth that is connected to the pinion (20) and comprises a bearing protrusion (38) which is adapted to mate with the bearing hole (32), a cam gear (39) having internal teeth that meshes with both the first and the second gear wheel (30, 36), that has a gear axis which is offset an eccentricity value e relative to the output axis (34), that has a bearing hole (44) which is adapted to mate with the output shaft (22) and has the same a

Abstract: “A step down gear train is provided including an output shaft that rotates about an output axis, a housing that is rotatable relative to the output shaft, a toothed washer having a circumferential first toothed surface, an eccentric that is rotatably disposed on said output shaft and has an eccentric driving surface which is offset relative to the output axis by an eccentricity, the eccentric comprising a driving region, an annular gear comprising a circumferential second toothed surface, a circumferential third toothed surface and an eccentric driven surface cooperating with the driving surface, a gearwheel comprising a circumferential fourth toothed surface, said first toothed surface of the toothed washer and said second toothed surface of the annular gear meshing together in a first angular position and forming a first nutating gear having the eccentricity and the third toothed surface of the annular gear and the fourth toothed surface of the gearwheel meshing together in a second angular position that is

Abstract: A step down gear train, more specifically for an adjusting device of a motor vehicle seat, comprising an output shaft (22) rotating about an output axis (34), a pinion (20) that is connected to the output shaft (22), a housing (24) that comprises a housing portion (26) which is located in immediate proximity to the pinion (20) and has a passageway (28) for the output shaft (22), a first fixed gear wheel having external teeth that is connected to the housing portion (26) and comprises a bearing hole (32) which is centered on the output axis (34), a second gear wheel having external teeth that is connected to the pinion (20) and comprises a bearing protrusion (38) which is adapted to mate with the bearing hole (32), a cam gear (39) having internal teeth that meshes with both the first and the second gear wheel (30, 36), that has a gear axis which is offset an eccentricity value e relative to the output axis (34), that has a bearing hole (44) which is adapted to mate with the output shaft (22) and has the same a

Abstract: The invention relates to a step down gear train for an adjusting device of an automotive vehicle seat, said step down gear train having an input shaft and an output shaft that is connected to a pinion. In the path between input shaft and output shaft there is at least one first cogwheel and one second cogwheel. The invention explains that there is provided a follower wheel that engages the first cogwheel and that is not located in the path between the input shaft and the output shaft. A pusher wheel is further provided, which is not located in the path between input shaft and output shaft. Said pusher wheel engages both the follower wheel and the second cogwheel and is carried so as to be longitudinally slidable.