| 摘要 |
PROBLEM TO BE SOLVED: To simplify the operation at the time of operation by performing lock release of a turn lock mechanism in a turning and lifting device for a seat automatically. SOLUTION: A seat S is supported by a turn and support mechanism 20 so as to turn between a position where it faces the front and a turn position directed toward a door opening part and is lifted and lowered by a lifting mechanism 50 through the door opening part at the turn position. The turn of the seat at the position where it faces the front is locked by a turn and lock mechanism 30. The lifting mechanism is a quadric link mechanism consisting of a base plate 49 supported on the turn and support mechanism so as to advance and retract in the forward and backward directions of the seat, upper and lower link arms 52, 53 which are pivotally supported on its upper part and lower part and extend forward, respectively, and a lifting plate which is connected with tip parts of both link arms so as to turn in order to support the seat. Consequently, locking by means of the turn and lock mechanism is released by a lock release mechanism 35 operating in the interlocking relationship with the advance of the base plate in the vicinity of a retraction position.
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