| 摘要 |
<p>The head-rest (1) has an articulation device (4) connecting an additional structure (3) and a main structure (2). Two housings are provided on one of the structures and separated by a transition zone. A latch is provided on the other structure. A spring actuates the latch in locking by insertion in one of the housings, and defines two angular locking positions. A passage of the spring from one position to other position is done by a continuity of intermediate positions, where the latch rests against the zone to opposition of the spring.</p> |
