A seat slide locking apparatus comprises a lower rail provided with a plurality of locking holes, and a plurality of locking pieces provided on the lower rail. The locking pieces include a first locking piece 4a having a broad width inserting section 46 an...

The coupling system (5) comprises at least one first member (6) on which a second member (7) is slidable, step-adjusting means (26, 37a, 37b) for the position of the second member (7) on the first member (6) and a release device (46, 56) carried by the sec...

A compact ratchet drive, e.g. for position control in a vehicle seat, has a control arm (5) with a hand grip sliding between two lines of ratchet teeth ( 3, 4) and the movable support (2). One side of the control arm is fitted with a pair of grip pawls (8)...