| 摘要 |
The clamping unit of the power tool is fitted with a control device (10a) in the shape of a rotating sleeve (20a), joined with inner teeth to the outer teeth of a control ring (16a). The ring (16a) is provided with differently shaped areas integrated in its inner surface acting on a locking unit (12a) axially movable inside a locking sleeve (36a). After the tool (34a) is inserted, the sleeve (20a) is pushed towards the clamping jaws (26a) by a spring (24a) and can be rotated in order to move the differently shaped areas integrated in the inner surface of the control ring (16a) in a position which increases the clamping forces. |
