| 摘要 |
PROBLEM TO BE SOLVED: To provide a clutch mechanism for a vehicular seat capable of preventing tension from being excessively applied to an operation cable or the like even when backrest load of an occupant is heavy when the tension is applied to the operation cable or the like by the backrest load of the occupant generated by rear-end collision of the vehicle. SOLUTION: When a pressure-receiving member 50 receives backrest load of the occupant sitting on the seat and is turned in such a state that inertia force generated by the rear-end collision is applied to a weight 64, a connection arm 60 turns a first pivoting member 70 attached to a back frame by the turning to transmit the backrest load of the occupant to the first pivoting member 70. A second pivoting member 75 turned, along with the turning of the first pivoting member 70, in a reverse direction to the turning direction, is attached to the back frame, and even when the first pivoting member 70 is turned while exceeding a predetermined angle, the second pivoting member 75 is retained in the turning state when the first pivoting member 70 reaches the predetermined angle. COPYRIGHT: (C)2010,JPO&INPIT
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