| 摘要 |
PURPOSE:To enable to set a large lift quantity and reduce an operating force, by a method wherein an oscillating link and a geared driving link are connected to each other, and the driving link is rotated by an operating mechanism provided with a pinion. CONSTITUTION:A lower bracket 1 provided on a seat track is provided with an oscillating shaft 3 and an oscillation center shaft 4, to which the oscillating links 5, 6 are respectively fixed at one end thereof, and the shafts 3, 4 are connected to each other through interlocking links 7, 8 and an interlocking lever 9. The lower bracket 1 is provided with the driving link 14 which is provided with the gear 15, and the link 14 is connected to the link 5 by a motion-transmitting link 16. The pinion 21 of the operating mechanism 20 is engaged with the gear 15 of the link 14, whereby the rotation of the pinion 21 is transmitted to the oscillating links 5, 6 through the link 16, and a seat frame 11 is moved upwards or downwards. |
