Clamping device

Details Clamping device Clamping device

1979-12-13

1981-07-14

Watson, Robert C.

Work holders

Relatively movable jaws

Means to actuate jaw

269237, 269242, B25B 110

Patent

active

042782465

ABSTRACT:
A clamping device is provided having a pair of outwardly curved arms with pivotally mounted clamping jaws at one end thereof. A rotatable leverage screw threadedly engages pivot members which are pivotally mounted at the other end of the arms. A rotatable fulcrum screw threadedly engages pivot members which are pivotally mounted on the arms intermediate the ends thereof, so that rotation of the fulcrum screw causes the arms to rotate about the pivot members associated with the leverage screw to open and close the jaws at a suitably high speed and rotation of the leverage screw causes the arms to rotate about the pivot members associated with the fulcrum screw to open and close the jaws with the force required to obtain a good clamping action. A pair of telescoping support members which permit relative lateral movement between the fulcrum and leverage screws and prevent relative axial movement between the same screws are mounted on the fulcrum and leverage screws to limit skewing of the arms when the jaws are open.

REFERENCES:
patent: 1716718 (1929-06-01), Castagna
patent: 2530203 (1950-11-01), Lear

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