| 摘要 |
The invention relates to an adjustable steering column (1) for a motor vehicle comprising: a) a steering shaft (2) which is mounted in such a manner as to be able to rotate about its axis (11) in an adjusting part (4), b) a holding clamp (5) attached to the vehicle for holding the steering column (1), c) a holding part (3) and d) a fixing device (6) and when the fixing device is in the open state the adjusting part (4) can be adjusted with respect to the holding part (3) at least in the axial direction of the steering shaft (2) to adjust the position of the steering column (1) and when the fixing device is in the closed state the adjusting part (4) with respect to the holding part (3) is fixed by the fixing device (6). In order to ensure that substantial holding forces can be applied in the axial direction to prevent the adjusting part (4) being displaced with respect to the holding part (3), wherein the actuating travel distances and actuating forces at the adjusting lever correspond to the comfort requirements of the driver, it is proposed that e) the surface, directed away from the steering shaft (2), of the adjusting part (4) comprises in the peripheral direction a plurality of first planar surface portions (7a, 7b, 7c, 7d, 7e), f) the surface, directed towards the steering shaft (2), of the holding part (3) which at least partially surrounds the adjusting part (4) comprises second planar surface portions (8a, 8b, 8c, 8d, 8e), g) wherein the first and second surface portions extend in the direction of the axis (11) of the steering shaft (2) and wherein at least three pairs of first and second planar surface portions (7a, 8a, 7b, 8b, 7c, 8c, 7d, 8d, 7e, 8e) can be brought at least partially into non-positive or non-positive and positive contact for fixing the adjusting part (4), h) and wherein the holding part (3) is mounted in the holding clamp (5) in such a manner as to be able to rotate about a pivot axis (21).
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