| 摘要 |
The holder has a base-body (18) and a bearing bush (19), which are movable relative to each other, where the base-body and the bearing bush have a threaded section (27) corresponding to threads of a threaded bolt (26) in such a manner that the base-body and the bush are moved relative to each other by the rotation of the threaded bolt. The base-body and the bearing bush have a guiding unit corresponding to the bolt, and the threaded section is arranged at an edge of the base-body. |
