| 摘要 |
A mounting device (20) has a ball-and-socket element (22) that is can be fastened by a locking device (30) in a chosen position and is held in a bearing (21) on the mounting device. On its upper side (2'), a base part (2) has a guide element (10), into which the mounting device can be interchangeably inserted. When inserted, the ball-and-socket element fits over the surface of the base part. |
