| 摘要 |
PROBLEM TO BE SOLVED: To crease a rearward withstand load (load against whiplash) at a rotary end during a rear-end collision in a headrest device with a headrest body freely turnably supported on a horizontal shaft of a headrest stay attached to a seat bag.SOLUTION: In the headrest device, the first and second rear rotation regulation means for regulating a rear rotation end of the headrest body when the headrest body is rearwardly rotated around the horizontal shaft are disposed between the headrest stay and the headrest body. |
