| 摘要 |
PROBLEM TO BE SOLVED: To provide a thin head rest and a vehicular seat provided with a head rest with excellent general purpose capable of certainly performing switching of the head part support state and the storage state. SOLUTION: The head rest is provided with a support member 1 attached to an upper part of a back rest seat S2; a frame 2 swingably engaged with the support member 1; a frame urging means 3 for urging the frame 2; and a lock mechanism 4 provided between the frame 2 and the support member 1. The lock mechanism 4 has engagement members 41, 42 arranged on the support member 1 and formed with engagement groove parts 41a, 42a; a movable operation rod 44 having a recession part 44b formed toward the support member 1 side; a fixing member 46 swingably pivoted on the frame 2 and removaly engaged while crossing to the engagement groove parts 41a, 42a with movement of the operation rod 44; and an operation rod urging means 45 for urging the operation rod 44. The operation rod 44 clamps one circular end side of the fixing member 46 and allows turning of the fixing member 46. COPYRIGHT: (C)2008,JPO&INPIT
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