| 摘要 |
<P>PROBLEM TO BE SOLVED: To adjust an urging force of a spring for raising a seat structure not to excessively develop momentum of a rasing speed. <P>SOLUTION: A vehicle seat 1 has a seat back 2 (seat structure) hinge-connected to a seat cushion 3 in the state of being rotatable to be raised. A link mechanism 6 connected between the seat back 2 and the seat cushion 3 includes a four link mechanism which includes a first link member 6A integrally provided in the seat back 2, a second link member 6B rotatably and axially connected to the seat cushion 3, a third link member 6C axially connected to each of the first link member 6A and second link member 6B, and a fourth link member 6D comprising the seat cushion 3. A spiral spring 7 for urging the link mechanism 6 to perform link movement in the raising rotation direction of the seat back 2 is set in a part (joint part) for connecting the second link member 6B and the fourth link member 6D together. <P>COPYRIGHT: (C)2013,JPO&INPIT |
