| 摘要 |
<p>An upper arm (4b), which constitutes a suspension device for a vehicle, is configured from: a casing (12) which is supported in a manner so as to be able to oscillate relative to a vehicle body; a pair of screw shafts (20) which are supported by the casing (12) in a manner so as to be able to move only in the axial direction; a pair of screw nuts (21) which engage with the perimeters of the screw shafts (20), and which are supported by the casing (12) in a manner so as to be only able to rotate; a worm reduction gear (14) which rotates the screw nuts (21); and a pair of link arms (29a), the base-end sections of which are connected to the tip sections of the screw shafts (20), the tip end sections of which are connected to a knuckle (3), in a manner so as to be able to rotate around the vertical axis of the vehicle. The screw shafts (20) are moved in opposite directions from one another in the axial direction, the angle by which the pair of link arms (29a) are open is altered, and the entire length of the upper arm (4b) relative to the width-wise direction of the vehicle body is altered.</p> |
