| 摘要 |
A clamping jaw (20) has a longitudinal slot (24) and at least one inclined surface (30,32) which is axially movable towards a complimentary inclined surface in a cylindrical receptacle (16) of the manipulating device, using an actuator. The actuator (76,74,68,66,58,46) has a dead-point mechanism (74,68,66,58) which travels beyond its dead-point shortly before reaching its end position.
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