Clamp using elastic tension member

Details Clamp using elastic tension member Clamp using elastic tension member

1994-03-04

1995-05-02

Watson, Robert C.

Work holders

Plural holders to hold workpieces relative to each other

Workpieces normal to each other

269109, 269115, 269130, B25B 120

Patent

active

054112443

ABSTRACT:
A free clamp for holding the sides of a closed frame, box, chair legs, etc. during gluing or the like wherein the workpiece is engaged by clamp corner elements biased inwardly by an elastic tension cord. All of the corner elements, except one, include anti-friction rollers engaging the rubber tension member cord, and the ends of the cord are connected to an anchor corner element including a lock for receiving the elastic tension member and maintaining the tension therein. The tension member cord is mounted upon the corner elements in an asymmetrical relationship to permit the tension forces imposed upon the corner elements to be most advantageously applied to the frame sides during clamping.

REFERENCES:
patent: 1053556 (1913-02-01), Bergstrom
patent: 3224754 (1965-12-01), Graham
patent: 4047710 (1977-09-01), Wilson
patent: 4163547 (1979-08-01), Jerome
patent: 4171799 (1979-10-01), Elko
patent: 4527784 (1985-07-01), Schwab
patent: 4560153 (1985-12-01), Han
patent: 5161789 (1992-11-01), Rogers

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