| 摘要 |
A mechanism (16) adjusts a relative position of a component (14) within the vehicle. The mechanism has a mounting bracket (18). A drive drum (20) is mounted rotatably on the bracket for providing a rotary output to adjust the component (14). An actuation handle (22) is rotatably mounted to the drive drum (20) and rotatable relative to the drive drum (20) from a neutral position. A coil spring (24) surrounds the drive drum (20) in a sliding engagement. A return spring assembly (54) engages the coil spring (24). The handle (22) engages the coil spring (24) and the return spring assembly (54). As the handle (22) is rotated from the neutral position, the coil spring (24) is rotated in a winding sense about the drive drum (20) and against the return spring (54) thereby coupling the handle (22) and the drive drum (20) for rotation. As the handle (22) is counter rotated towards the neutral position, the return spring assembly (54) urges the coil spring (24) to rotate in an unwinding sense, uncoupling the handle (22) from the drive drum (20).
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