| 摘要 |
The clamp consists of a plate (1), a central disc (2) joined to the plate by links (3), two end plates (11,12) mounted to rotate in relation to the central disc (2) on a shaft (13) about the axis (14) and situated on either side of the central disc (2). Two gripping claws (21,22) are connected one to either of the end plates (11,12) and the operation in rotation to open or close the claws (21,22) is by a cam unit (30) acting against return springs (51) mounted in the body of the clamp.
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