Abstract: In hinge structures for seats having adjustable backrests, a hinge piece attached to the fixed seat (12) and a hinge piece (6) attached to the adjustable backrest (13) are connected on a pivot axle (7) with an eccentric portion (7a). One hinge piece has inwardly projecting teeth (6a) defining a toothed zone into which extend the outwardly projecting teeth (8a) of a spur gear zone of the second hinge piece, thus forming a wobble-plate gear unit. In addition to both of these toothed zones, there is provided on the first hinge piece a second inwardly projecting toothed zone (6b) concentric with an axially displaced from the first inwardly projecting toothed zones and meshed with a second spur gear zone (8b) concentric with and axially displaced from the first spur gear zone.

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 safety belt link point assembly for attachment to a pillar of the vehicle at a location adjacent the shoulder of a vehicle occupant, includes a slotted guide with one link provided with a series of locking openings. The guide is secured to the pillar. A slide member is mounted on the guide and has one limb lying adjacent and parallel to the limb of the guide. The slide member limb has one opening which can be made coincident with any of the openings of the guide member limb. A slide piece carries a link point for receiving the belt webbing and is movable in the slot of the guide. A link is movable with the slide piece and carries a projection which can engage in a selected opening of the guide limb and with the opening of the slide member to lock the device.

Abstract: A seat for an automobile or other vehicle includes a seat part and an adjable back-rest part. The two parts are connected pivotally by a linkage which includes an eccentric disc having a large ratio of diameter to thickness. The disc engages in a recess in the back-rest part and is mounted on the seat part for rotation whereby the inclination of the two parts can be adjusted without relative translational movement between the two parts.