| 摘要 |
A clamp has a pair of parallel rails (2) at one end of which is a clamp head (8) slidable on the upper ends of the rails and including an upper clamp jaw (5). A lower clamp jaw (6) can slide freely along the rails on carriages (16). The carriages jam on the rails when the lower jaw is subjected to a clamping load. An eccentric mechanism (22, 28) operated by a handle (20) pivoted on the rails, pulls the upper jaw towards the lower jaw to effect final clamping and jamming of the lower jaw on the rails. Finger grips (38, 44) are associated with the lower and upper jaws. The finger grips and handle are so arranged that all of the movements of the jaws and handle necessary to clamp an article can be performed by the fingers and thumb of a single hand without the user releasing his grip on the clamp. The top jaw may have a port (54) and retaining mechanism so that a vice or other ancillary device can be mounted on top of the clamp. |
