| 摘要 |
The purpose of the present invention is to provide a head rest in which the position of a movable member can be adjusted in stages forwards and backwards during normal operation. This head rest (1) is provided with a first and second head rest pillar (2a, 2b), a fixed member (4) provided between the first and second head rest pillars (2a, 2b), a movable member (5) which can move in the direction forwards away from or backwards returning towards the fixed member (4), an X-link mechanism which links the fixed member (4) and the movable member (5) and which has an inside link (6) and an outside link (7) rotatably connected through a cross connection unit (8) in the center, and a forward-backward lock mechanism which comprises an engaged unit (15) and a locking member (16) for engaging said engaged unit (15) and which locks, and releases locking of, movement of the movable member (5) forwards and backwards relative to the fixed member (4). |
