| 摘要 |
<p>A steering column assembly (100) has an adjustable shroud comprising a fixed portion (5) secured to the vehicle body and a moving portion (4) which can be collapsed telescopically through a normal range of adjustment relative to the fixed portion, a support bracket (6) secured to a fixed part of the vehicle and a clamp mechanism (13, 12). The assembly includes a blocking mechanism (12b) which is an integral part of a locking lever (12) of the clamp assembly so arranged that when the clamp mechanism is in undamped the blocking mechanism prevents the moving portion from collapsing beyond the normal range of movement in the collapse direction by providing a path for axial forces applied to the moving portion to pass through the blocking mechanism to a stopper (21) fixed relative to the vehicle body and when the clamp mechanism is clamped the blocking mechanism is held clear of the stopper to permit additional telescopic movement of the moving portion towards the fixed portion beyond the normal range of adjustment.</p> |
