| 摘要 |
PURPOSE:To easily adjust only the front end of the seat vertically without moving the entire seat, by vertically moving the front end without stages. CONSTITUTION:The seat 10 comprises a seat front end vertically adjuster 18 provided on the front of frame 12, an elastic member 16, and a cushion 22 which is set on the adjuster 18 and has such a groove 20 that the front of the cushion can swung together with the adjuster 18. When a handle 54 f a driving unit 28 of the adjuster 18 is turned in the direction of te arrow, a first member 38 is eccentrically swung through an eccentric wheel 46 provided on a shaft 48 coupled with the handle so that an internal gear 36 on a first member 38 gets its position of engagement with an external gear 40 on a second member 42 moved by the tooth number ratio. Thereby, a shaft 32 is turned through a third member 70 fixed to the first member 38 to swing the front end 82 of the seat 10 and a panel 34 centering the groove 20. |
