Abstract: An upholstery support for a vehicle seat consisting of a first shell with a raised edge and made from a fiber-reinforced plastic and a second shell arranged on the side of the first shell facing the upholstery, which second shell is also made from a fiber-reinforced plastic, is connected with the first shell along the edge of the first shell, covers only portions of the first shell and is spaced from the first shell in predetermined areas. The second shell has a central cut-out and forms, together with the raised edge of the first shell, a hollow box-like frame and in both shells the reinforcing fibers are carbon fibers.

Abstract: A hinge joint for use in the seats of motor vehicles to bring about changes of inclination of the back of the seat has a first component which is secured to the body supporting portion of the seat, a second component which is affixed to the back of the seat, and a shaft which has an eccentric cylindrical portion rotatably journalled in the first component and two conical portions which are disposed at opposite axial ends of the cylindrical portion and are received in complementary openings of two spaced-apart sections of the second component. A diaphragm spring biases the shaft axially to urge the conical portions deeper into the respective openings.

Abstract: The frame of the seat in a motor vehicle has a base for the cushion which carries the weight of the occupant and a back rest which carries the cushion for the back of the occupant. The back rest has two upwardly extending parallel frame members and a connector between the upper ends of the frame members. The upper end of one frame member carries a takeup reel for the safety belt whose latch plate can be inserted into a buckle adjacent the lower end of the other frame member. When the belt is applied and is tensioned, such as in the event of an accident, it applies to the one frame member a force acting diagonally of the back rest and tending to bend the one frame member forwardly and toward the other side of the seat. The cross-sectional outline of the one frame member and the orientation of such cross-sectional outline are selected in such a way that the one frame member offers maximum resistance to deformation by the belt in the direction in which the belt acts thereon in the event of an accident.

Abstract: A hinge joint wherein one of the leaves is secured to a fixed part and the other leaf is secured to the pivotable back rest of a seat in motor vehicle and is pivotable with reference to the fixed leaf about the axis of a pintle which can be rotated by a hand wheel or a motor. The other leaf carries a braking member with a cylindrical or frustoconical internal surface which is engaged by the peripheral surface of a prestressed elastic split ring defining a gap for the projection of a blocking element which is affixed to the pintle and urges the split ring into stronger frictional engagement with the braking member when the back rest is acted upon to pivot the other leaf. A coupling device is secured to the hand wheel or to the motor to disengage the split ring from the braking member when the pintle is rotated by the hand wheel or by the motor. The end portions of the split ring flank the projection of the blocking element and are flanked by two protuberances of the coupling device.

Abstract: Apparatus for adjusting various parts of the seat in a motor vehicle has first and second adjustable units which receive motion from discrete first and second rotary driving elements in the form of gears or clutch sections. The driving elements flank an axially movable disc which has teeth or claws movable into engagement with the teeth or claws of the one or the other driving element in response to depression of a pushbutton which is surrounded by a hand wheel serving to rotate the selected driving element by way of a hollow shaft which non-rotatably carries the disc and surrounds an actuating member which transmits motion from the pushbutton to the disc. A locking device operates between the shaft and a pin which is reciprocable with the disc to releasably hold the disc in torque-transmitting engagement with the selected driving element.

Abstract: In a back rest for a vehicle seat, the upholstery support is provided at least in one upper corner area in its front side with an opening to form a receptacle for a belt retraction device, which receptacle is open toward the front and closed at the rear by a back wall lying behind and spaced from the front side. An upper and a lower wall, which form the top and bottom of the receptacle, are connected with the front wall and/or the back wall and are spaced from each other so as to allow the receptacle to receive the belt retraction device without play. Form-fitting, overlapping restraining elements on the upper wall and the facing upper side of the belt retraction device, as well as on the back wall and the facing back side of the belt retraction device, together with a connecting element that engages the underside of the belt retraction device, secure the retraction device against being moved out of the receptacle.

Abstract: The stationary component of a hinge joint between the lower part and the back of a seat in a motor vehicle is coupled to a pivotable component of the back of the seat by a shaft which carries an eccentric for the inner race of a ball bearing whose outer race is non-rotatably secured to a spur gear forming an integral part of the stationary component and mating with one or more teeth of an internal gear in the pivotable component. The outer race has a frustoconical internal surface engaged by the convex surface of a lever which is pivotally connected to and rotates with the shaft when the latter is turned by an operator to change the inclination of the back of the seat. An elastic pad or one or more springs are used to bias the eccentric radially of the shaft. The shaft is non-rotatably connected with but can move radially of the eccentric.

Abstract: A hinge fitting for pivotably and selectively locking the back rest of a vehicle seat to the vehicle frame has two planetary gear sets, formed as mirror-images of one another. Both sets have the same reduction ratio and the eccentrics of the two planetary gear sets are rotated toward each other at most by a small angle.

Abstract: The back of the seat in a motor vehicle is connected to the base of the seat by a shaft which has a cylindrical eccentric of lesser eccentricity and a frustoconical eccentric of more pronounced eccentricity. The base has a first gear with a first internal surface surrounding the cylindrical eccentric and a second internal surface surrounding the second eccentric. One or more teeth of the first gear mate with the teeth of an internal gear on the back. The shaft is journalled in the back and can be rotated by a handle to thereby change the inclination of the back relative to the base. The second surface is movable axially of the shaft and is biased in such a direction by one or more springs to bear against the surface of the frustoconical eccentric. The cylindrical eccentric is effective during the initial stage of angular movement of the shaft for the purpose of changing the inclination of the back.

Abstract: An upholstery support for the back rest of a vehicle seat, particularly a motor vehicle seat, has two reinforced half-shells connected with each other along a portion of their edges. The half-shells form hollow box-like arms which distance themselves from each other from a hollow box-like joining area toward their free ends. The free ends of both arms form the lower end of the upholstery support, which has a V-like shape that is open toward the lower end.

Abstract: A vehicle seat has a back rest and support surface for supporting the vehicle user, in which at least one portion of the support surface facing the seat user forms at least the outside of a wall, the inner side of which wall borders at least one channel through which air flows. The wall is at least substantially impermeable to air at the pressure prevailing in the channel and comprises a material which, when there is a drop in the water vapor partial pressure from the outside to the air flowing through the channel, transfers water vapor in the direction of this partial pressure drop.

Abstract: A vehicle seat having an upholstery support that supports the upholstery of the back rest has at least one arm provided on the upholstery support which extends over the shoulder of a seat user and restrains the user in the upward and outward directions during vehicle collision. A side restraint member is connected with the arm and configured so as to protect the user in a lateral direction without interfering with the freedom of movement of the user.

Abstract: A protective circuit for a manually controllable adjusting device for motor vehicle seats, which is driven by an electric motor, has a current sensor (11) with an output voltage which corresponds to the sum of all instantaneous currents flowing in the motor electrical circuit of the adjusting device. Furthermore, a threshold switch stage (14, 16, 24, 25, 26) which responds to a predetermined value of the output sensor (11) and a switch (12) which lies in the electrical circuit of the electric motor are provided. This switch (12) can be switched from its closed condition into its opened condition by the threshold switch stage when a threshold value is exceeded.

Abstract: In an articulated fitting for vehicle seats, particularly motor vehicle seats, having an upper fitting element (4) to be connected with the back rest, a lower fitting element (3) to be connected with the seat portion, an intermediate element (5), which is pivotably connected both with the upper fitting element and with the lower fitting element about a hinged axis (6) and a lower-lying folding axis (13), respectively, and having an adjusting and holding device that engages the upper fitting element (4) and the intermediate element (5) for the adjustment of the angle of inclination of the back rest and the folding lock (14,17,18,20) which permits a pivoting of the upper fitting element (4) and the intermediate element (5) about the folding axis (13) only when in the opened condition, the connecting line between the pivot axis (6) and the folding axis (13) when the folding lock is closed, encompasses an angle of at most 30.degree.

Abstract: The present invention relates to an adjusting device for vehicle seats having a threaded spindle (4) and a spindle nut arranged thereon, each of which is connected in an axially immovable manner with one or the other of elements (1, 2) to be adjusted relative to each other. The spindle nut (13) is provided with a full-length (or continuous) channel (20) running parallel to the threaded bore which receives the threaded spindle (4), which channel receives a bar (22) which prevents a rotation of the spindle nut (13) about the longitudinal axis of its threaded bore. The opposing boundary surfaces (21) of the channel (20), which cooperate with the bar (22) are spaced from each other such that at the midpoint of the channel (20) the space is equal to the bar thickness and uniformly increases toward the two ends of the channel.

Abstract: A seat rail for vehicle seats, particularly motor vehicle seats, is formed as a housing in which at least one drive element of a seat adjustment device is arranged. A slide rail which serves the longitudinally movable adjustment in a guide rail is formed on the seat rail. Seat adjustment devices to control the height, longitudinal movement or the angle of inclination of the seat may be included in the seat rail.

Abstract: A motor vehicle seat having a backrest pivotable about the seat which includes a thin plate with longitudinal beams welded to the edges of the plate and a reinforcing element connected to the backrest adjacent the pivot axis.

Abstract: In an articulated fitting for vehicle seats, two fitting elements are mounted on a bushing (4) which serves as a hinge pin allowing the fitting elements to be rotatable and pivotable relative to each other. In order to be able to rigidly connect an activating member (17) with one end of the bushing and a pin (19), which engages in the bushing, with the other end without danger of a misalignment, the two end surfaces (4', 4") of the bushing (4) are provided with axially projecting projections that penetrate into an annular shoulder (19) of the pin (18) and into the activating member (17), respectively. In addition, the end of the pin (18) that projects beyond the activating member (17) is formed as a rivet head (18") which holds the annular shoulder (19) and the activating member (17) in forced abutment against the bushing (4).

Abstract: A hinge for a seat, particularly a power vehicle seat, has a stationary hinge member associated with a seat part of the seat, a pivotable hinge member associated with a backrest part of the seat, a pivot axle pivotally connecting the hinge members with one another, an adjusting and fixing device arranged to determine a position of the hinge members relative to one another and formed as a wobble transmission including an eccentric member associated with a cam region of the pivot axle and rotatable together with the latter, an accumulator arranged in the cam region of the pivot axle to radially adjust an eccentricity which determines an engaging point of the wobble transmission and formed as an eccentric ring with an inner longitudinal opening in direction of eccentricity and surrounding a centric portion of the pivot axle, a pressing member located between the longitudinal opening and the centric portion of the pivot axle and arranged to be pressed by the accumulator for maintaining an extreme eccentricity in

Abstract: A seat, particularly a power vehicle seat, has seat rail elements arranged at both longitudinal sides and forming a connection between a vehicle body and the seat part, each of the seat rail elements has a guide rail and a movable rail displaceably longitudinally relative to the guide rail, each of the movable rails includes a carrying member and a holding member together forming a T-shaped movable rail, a hinge connected with the seat part and connecting the movable rail with the back part, the hinge includes two hinge parts formed as a position adjusting and fixing transmission, wherein one of the hinge parts is fixedly connected with the carrying member of the T-shaped movable rail, whereas the other hinge part is connected with the back part and surrounded by the holding member of the T-shaped movable rail.