| 摘要 |
<p>A rake adjustment column device (25) in which a first clamping means (26, 27) is provided to clamp a steering column (21) in a desired adjustment position, and a second means (29, 30) is provided to maintain substantially the adjustment position in the event of a vehicle crash. The second means is a cam (29) pivotally mounted so as to engage with a suitably formed engagement surface (30). A similar arrangement may be provided for reach adjustment and the maintenance of the adjustment. The cam is so shaped that it has one extremity (32) at a greater radial distance from its cam pivot (26) than another extremity (33) near the cam pivot, thereby to result in a greater engaging force as the can rotates in one direction.</p> |
