| 摘要 |
A seat reclining mechanism including a cushion arm (15) pivotally connected to a squab arm (13) by a planetary gear arrangement, the planetary gear arrangement including a pair of side by side ring gears (12, 14), one of the ring gears (12, 14) being secured to the squab arm (13) and the other of the ring gears being secured to the cushion arm (15), a sun and planetary gear arrangement common to both ring gears (12, 14), the sun and planetary gear arrangement including radially movable planetary gears (18) surrounding at least one sun gear (16) having a fruso-conical form which is biased in an axial direction so as to urge the planetary gears (18) in a radially outwards direction and into contact with the ring gears (12, 14). |
