| 摘要 |
PROBLEM TO BE SOLVED: To simplify a structure of an extended seat used in a second seat, simplify folding operation, ensure a getting-on-and-off space to/from a side seat, and reduce cost. SOLUTION: This extended seat used in the second seat includes an extended seat cushion 11 offsetting a cushion rear 13 properly more forward than the second seat 20 and supported on a seat cushion 21 of the second seat 20 by arranging it on a cushion side 26 of the seat cushion 21 of the second seat 20 on a walk-through side of the second seat 20 and an extended seat back 12 supported on at least the extended seat cushion 11 by left and right arm type hinge brackets 14, 15 and capable of falling forward on the extended seat cushion 11.
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