Abstract: A seat includes a device for adjusting the position of a seat part relative o its support. The device is operated by a rotary knob which rotates a pinned disc of a lantern wheel gearing arrangement. The pins of the disc cooperate with teeth of a gear wheel which is connected to a pinion that rolls on a toothed segment articulated to the seat support. The teeth of the gear wheel are constructed so that reaction forces due to contact between the flanks and the pins are directed so as to pass through the rotational axis of the disc. Therefore no torque is applied to the disc and it remains stable.

Abstract: A pressurized medium distributor device has a respective push rod valve been the common inlet and each outlet. The push rod valves can be opened against a spring force by operation of an actuating member so that pressure medium connection can be made between the distributor line and the relevant actuated pressurized medium outlet connection or connections.

Abstract: A slide rail assembly includes a U-shaped guiding rail and a U-shaped gui rail. The guided rail has turned-in portions along the longitudinal free edges of its legs, which turned-in portions engage behind adjacent legs of the U-shaped guiding rail. One leg of the guided rail together with its turned-in portion is recessed from one end of the rail to substantially the center of the rail. The other leg of the guided rail is recessed from the other end of the rail to the center.

Abstract: A rear seat for a motor vehicle includes a seat part and a back rest pivo to the seat part. The seat is mounted so that it can be moved between an inoperative position, in which the seat part and back rest are folded together and positioned approximately parallel to the back rest of the vehicle's front seat, and several operative positions. The seat part is mounted to the floor of the vehicle by a first link. A second link is pivotally mounted at one end to the back rest and has a journal at the other end. A locking member is movable between a locking position in which it holds the journal pivotably to an adjacent part of the vehicle and an unlocked position in which the journal is released to allow the seat to be moved to its inoperative position.

Abstract: A vehicle seat has a subframe carrying an adjustment device which adjusts a eat portion by lifting it and moving it simultaneously forward. The adjustment device includes two linkages at the front and rear of the subframe respectively for supporting the front and rear of the seat portion. Each linkage carries a segment. A pawl is engageable with the segment to lock the linkage against movement thereby also locking the seat portion against movement. A spring biases the rear linkage with respect to the subframe to raise the seat portion upwardly. The segment of the front linkage forms a separate pivotal link in the linkage.

Abstract: A vehicle seat includes a subframe arranged to be secured to the vehicle or and an upper frame mounted on the subframe by four pivotal levers to form two pairs of parallelogram linkages and so constrain movement of the upper frame relative to the lower frame along an arcuate path.A pair of mounting plates carrying a back rest are pivotally secured to opposite sides of the upper frame. A pair of control levers couple the mounting plates to respective levers in a manner such that when the mounting plates are pivoted by tilting the back rest forward into a horizontal attitude, the upper frame is caused to move along its arcuate path and so draw the back rest forward to allow greater access to the area behind the back rest.