Tool chuck

Details Tool chuck Tool chuck

1992-03-30

1992-12-22

Bishop, Steven C.

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

279140, 279157, 279902, B23B 3112

Patent

active

051729237

ABSTRACT:
A tool chuck has a plurality of inclined chuck claws mounted centrally of a forward end of a chuck body to be slidable toward and away from one another, a nut ring meshed with the chuck claws and rotatable to screw-feed the chuck claws toward and away from one another, and a torque amplifying mechanism interposed between the nut ring and a control ring fitted to an outer peripheral surface of the chuck body, whereby the control ring is turned directly by hand to cause the chuck claws to hold a tool. A torque limiter is incorporated into the torque amplifying mechanism for allowing the tool to be clamped by a force not exceeding a predetermined value. Excessive tightening of the tool is thereby avoided so that the tool is removable when desired, and at the same time the above torque limiter is formed compact.

REFERENCES:
patent: 5044643 (1991-09-01), Nakamura

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