Abstract: A device for selectively monitoring and reducing a backward displacement of a vehicle seat in the event of an accident, having at least one stop element (4) which arranged on a pair (1) of seat rails and has a stop face (5) which is inclined with respect to a longitudinal axis of the pair (1) of seat rails, and having at least one stop body (6) which is arranged on the vehicle seat, having a contact face (8) which is arranged in a normal position at a distance from the stop face.

Abstract: A mechanism housing (140) for an adjustment mechanism (100) for a vehicle seat includes a first housing part (150) and a second housing part (160). A first cylinder segment (155) of the first housing part (150) and a second cylinder segment (165) of the second housing part (160) join as a pair to form a cylinder portion (170) through which a spindle (4) extending along an axis (A) can be passed. In the radial direction relative to the axis (A), facing away from each other, the two housing parts (150, 160) are held together by two spring clips (180).

Abstract: A bearing unit including an outer guide sleeve having an opening, as well as an inner receiving sleeve that is rotatably arranged inside the outer guide sleeve opening and that includes a recess. A rotational axis of the inner receiving sleeve in the outer guide sleeve and a central axis of the recess in the inner receiving sleeve are arranged at a distance from each another about an eccentricity. The bearing unit allows the position in which securing elements are mounted to be adapted in a simple and reproducible manner, and which is formed from just a few components so as to permit simple and cost-effective assembly. A device is provided between the outer guide sleeve and the inner receiving sleeve for the purpose of force and/or form-fittingly securing an adjusted receiving sleeve position relative to the guide sleeve.

Abstract: A device and a method for operating an electromechanical adjustment device having an electric drive device, include a control unit that detects the reaching of a mechanical end stop of the adjustment device and controls and/or regulates the electric drive device. After a mechanical end stop of the adjustment device is reached, a change in the direction of rotation is automatically actuated in the electric drive device for a predefinable period of time or a predefinable traveling distance.

Abstract: A fitting for a motor vehicle seat adjusting device and a method for producing same is based on a relatively adjustable fitting top part and a fitting bottom part, a transmission gear unit, in operative connection with the fitting parts, for adjusting the fitting top part relative to the fitting bottom part, and a drive shaft (21) extending at one end through the fitting in a longitudinal axial direction of a fitting axis and in engagement with the gear unit. The drive shaft (21) is wobble riveted to a bushing (6) to axially secure the fitting top part (2) relative to the fitting bottom part (3). The bushing is arranged in an opening (11), coaxially to the fitting axis, of the fitting top part or fitting bottom part. The drive shaft rests, on the side opposite the bushing, with a stop (12) against the fitting.

Abstract: A fitting (1) for an adjustment device, in particular inclination adjustment of a motor vehicle seat, includes a fitting upper part (2) having a first internal toothing (4), a fitting lower part (3) which is adjustable relative to the fitting upper part about a fitting axis and has a second internal toothing (5) arranged coaxially with respect to the first internal toothing, at least two, preferably, three, rotatably arranged planet gears (7) which are in engagement with the first and second internal toothings, and a drive shaft (6) which is in operative connection with the at least two planet gears by means of a pinion (23). Noise loads and buckling effects are avoided even after a relatively long period of operation, with a spring element (11) prestressing the planet gears (7) in the direction of the axis of rotation onto the fitting lower part (3) or fitting upper part (2).

Abstract: A motor vehicle seat fitting includes a fitting top part with a ring gear (21) having internal toothing, a fitting bottom part with a gear wheel (4), having external toothing and which is in engagement with the ring gear, an eccentric arranged rotatably in a bore (7) of the bottom part running axially to the gear wheel, for rolling adjustment of the gear wheel relative to the hollow gear, and a drive shaft, which drives the eccentric and extends axially to the ring gear. A cam receptacle (17) is arranged on one of the gear wheel or the ring gear (21) and a stop cam (16), that engages in the cam receptacle, is arranged on the other of the gear wheel or ring gear, in a ring portion between the external toothing and the bore and on the ring gear in a zone which may overlap the ring portion.

Abstract: A rail guide that has at least one rail pair consisting of a floor rail (22) and a seat rail (24). The seat rail (24) has connectors (30) for fastening a seat frame to be arranged above the rail pair. The rails can be moved relative to each other in a longitudinal direction along a movement path (20). The floor rail (22) and the seat rail (24) are curved by the same circular radius of curvature (42) that ranges between 1,500 and 3,000 mm, in particular between 1,800 and 2,500 mm. The center point of curvature (44) is on the side of the rail pair facing away from the seat frame. The rail guide is a longitudinal adjustment device having a stationary spindle (52) and an associated spindle nut (54) that is longitudinally movable thereon, the spindle (52) being curved at the same circular radius of curvature (42). Also described is a suitable method for producing said curved rails by at least one stamping mold (68) or by bending strips (96).

Abstract: An actuating drive for a rail guide of a longitudinal adjustment of a motor vehicle seat has a rotational drive, which has an output shaft (70), and a transmission, which has a spindle nut (54), which is rotationally connected to the output shaft (70) and which has a spindle (52). The spindle (52) has a spindle thread, with which the spindle nut (54) is engaged. The spindle (52) is curved in a circular radius of curvature (42). The radius of curvature (42) is between 1,500 and 3,000 mm. The spindle nut (54) is a straight nut.

Abstract: A device and a method for operating an electromechanical adjustment device having an electric drive device, include a control unit that detects the reaching of a mechanical end stop of the adjustment device and controls and/or regulates the electric drive device. After a mechanical end stop of the adjustment device is reached, a change in the direction of rotation is automatically actuated in the electric drive device for a predefinable period of time or a predetinable traveling distance.

Abstract: A device for selectively monitoring and reducing a backward displacement of a vehicle seat in the event of an accident, having at least one stop element (4) which arranged on a pair (1) of seat rails and has a stop face (5) which is inclined with respect to a longitudinal axis of the pair (1) of seat rails, and having at least one stop body (6) which is arranged on the vehicle seat, having a contact face (8) which is arranged in a normal position at a distance from the stop face.

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).