| 摘要 |
<p>1. Height adjustment device of the rear part of a vehicle seat, comprising a L-shaped part (4) which is fixed on the mobile upper part of each slide (1) of the seat, then the upright part (4a) of this L-shaped part (4) is used as a support for a part (30) bearing a rear sector (39) having teeth (40) provided to cooperate with a triangular part (14) pivotally mounted on an axis (15), this triangular part (14) being provided at its rear part with a toothing (16) in engagement with the teeth (40), characterized in that, when the part (30), which is slidingly mounted, is drawn toward the front of the seat while, under action of an isosceles triangular part (21) moving in a button hole (33), the toothing (16) frees from the teeth (40), a pin (7), placed at the end of a support piece (6) carrying the seat frame, can move vertically in button holes of a suitable shape (18, 60) pierced in the parts (4) and (30), this movement being caused on an automatic manner on the one hand, because of the mounting on a pin (5) of the support (6) and on the other hand by action of a jack (11) which pivots the triangular part (14) the rear end of which is fixed to the pre-mentioned pin (7) ; the return movement of the isosceles triangular part (21) which carries a catch (22) being obtained under action of a return spring (50).</p> |
