Vise with clamping jaws

Details Vise with clamping jaws Vise with clamping jaws

1988-10-14

1990-03-20

Watson, Robert C.

Work holders

Relatively movable jaws

With means for 'hold-down' component of force

B23Q 302

Patent

active

049094947

ABSTRACT:
A vise with clamping jaws (7,8), which are provided on the frame (1), makes possible a drawing-down motion with respect to a bearing surface (17) for the workpiece (16) when the gripping force is applied via a drive mechanism. The clamping jaws (7,8) have on their side facing toward the workpiece (16) a gripping edge (18,19) or gripping surface and, downwardly adjoining thereto, in each case an undercut surface (20,21), set back with respect to a vertical plane through the gripping edge or gripping surface. The clamping jaws (7,8) are mounted pivotably about horizontal pivot axes (14, 15), which are arranged underneath the bearing surface (17) for the workpiece (16) and on the side of the vertical plane facing toward the workpiece. Restoring springs are designed as tension springs (25,26) and thus for absorbing the gripping forces in the elastic range.

REFERENCES:
patent: 2587025 (1952-02-01), Beck et al.
patent: 2760535 (1956-08-01), Mertz
patent: 2811771 (1957-11-01), Ericsson
patent: 4039115 (1977-08-01), Randolph et al.
patent: 4771999 (1988-09-01), Takeuchi et al.
Western Electric, Technical Digest, No. 22, "Clamp", Behrens et al., Apr. 1971.

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