| 摘要 |
A clamping arrangement with a means comprising first downwardly facing surface (36) and a second upwardly facing surface (38), the first and second surfaces each comprising two levels, the first levels being arranged to define the clamping position for the clamp member (2), and the second levels being arranged to define a second non-clamping position for the clamp member (2), wherein said clamp member (2) is arranged to contact, on an upper surface, the first surface and to contact on a lower surface the second surface, whereby movement of said clamp member (2) relative to said first and second surfaces causes said clamp member (2) to move between said first clamping and second non-clamping positions. |
