| 摘要 |
PROBLEM TO BE SOLVED: To provide a seat lifter structure which suppresses the relative rotation of an output shaft with respect to an input shaft caused by the weight of a seat and a seated occupant at a descending operation of a seat cushion, and can reduce an operation force at an ascending operation of the seat cushion.SOLUTION: A seat lift structure 20 comprises: an input shaft 66 which is rotatably arranged at a seat cushion 24 of a seat 22 arranged on a vehicle body floor 40, and rotates around an axial line when inputted with an operation force; an output shaft 58 which is connected to the input shaft 66, and rotates to the same direction when the input shaft 66 rotates; a link mechanism 46 which is connected to the output shaft 58, moves a seat cushion 24 downwardly in a vehicle body vertical direction when the output shaft 58 rotates in a first direction, and moves the seat cushion 24 upwardly in the vehicle vertical direction when the output shaft rotates to a second direction; and an abutment part 72A which is arranged at the output shaft 58, and abuts on a friction face 70A formed at the seat cushion 24 when the input shaft 66 rotates to the first direction.SELECTED DRAWING: Figure 8 |
