| 摘要 |
PROBLEM TO BE SOLVED: To provide a basic structure capable of realizing various forward and backward moving loci in a longitudinal position adjusting mechanism of a headrest. SOLUTION: In the headrest device 1 having a frame 4 and a stay 2 built in a headrest body 2, the stay 2 sliding along the frame 4 is provided with a guide rod part 23 extended in the longitudinal direction of the seat back.
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