| 摘要 |
PROBLEM TO BE SOLVED: To increase the size of a slide rail, to considerably suppress the increase in weight, and to enable considerable reduction in weight. SOLUTION: The seat comprises a seat cushion 1 forming a seating surface and a seat back 3 forming a back surface, a lower part of the seat back 3 is coupled with a connection member 7 slidably supported in the longitudinal direction by the slide rail 21 on a vehicle body side, a forward portion of the seat cushion 1 is supported by a floor side, and a rear portion thereof is supported by the connection member 7 in the seat S. The connection member 7 is positioned to an arbitrary slide position of the slide rail 21 by fitting forward and rear lock pins 23 at least in the seat slidable direction to a locking hole 25 in an attachable/detachable manner, and the load from the connection member is received by the lock pin 23 and the locking hole 25.
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