| 摘要 |
<p>This invention relates to a head support unit with a mechanism which is developed for the head support part of the passenger seats; comprising the assembly of the side support piece-1 (6) and the side support piece-2 (7) to the central piece (8) with a centerline shaft (1), a spring (2), a union nut (3), a shim (4) and a spring washer (5). By side support's being pulled by the user with hand, it is provided to be opened by changing it to a wide angled U shape from its parallel form to the seat back by means of rotating the mentioned side supports (6, 7) on the axles of the centerline shaft bearing (10) which is placed on the central piece (8) and the adjuster (9); closed by rendering it to its previous form; and placed at gradual stages.</p> |
