| 摘要 |
<p>A seat reclining mechanism comprises a squab plate (10) with a ring gear (14), a cushion plate (12) with a spur gear (16) having at least one tooth less than the ring gear (14) and a hinge pivot (22) with an eccentric (20) by means of which the gears (14, 16) are held in mesh at one location, the pivot (22) being rotatable to shift the position of mesh with consequent rolling of the gears (14, 16) relative to one another and angular adjustment of the plates (10, 12). To simplify mass manufacture, an elastomeric ring (30) is incorporated into the mechanism and some degree of play is permitted between the pivot (22) and the aperture in which it is journalled which play is taken up by the ring (30). Freedom of movement perpendicularly of the direction of eccentricity, which could otherwise lead to rocking of one plate relative to the other, is restricted by appropriate shaping of opposing peripheral surfaces associated with the hinge pivot (22) and one of the hinge plates.</p> |
