Drill chuck

Details Drill chuck Drill chuck

1997-02-21

1998-11-10

Bishop, Steven C.

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

279140, 279902, B23B 3112

Patent

active

058332472

ABSTRACT:
A drill chuck includes clamping jaws guided in openings inclined toward each other in a chuck body and displaced via a manually rotatable clamping sleeve and a blocking sleeve, which is axially displaceable and partially rotated in relation to the chuck body. The blocking sleeve can be connected with the clamping sleeve by being displaced into its axial end position. A spring operating in the circumferential direction between the chuck body and the blocking sleeve, which prestresses the blocking sleeve in relation to the chuck body in a direction corresponding to the closing direction of the clamping sleeve is provided. To increase the service life of the drill chuck it is embodied in such a way that the end of the spring on the blocking sleeve side is disposed on a plate- or disk-shaped adjusting disk which encloses the shaft of the chuck body, is interlockingly taken along with the rotation of the blocking sleeve and is axially displaceable on the blocking sleeve, and in such a way that, for limiting the rotation of the blocking sleeve in relation to the chuck body, a cam is provided, which operates between the surface of the shaft of the chuck body and the adjusting disk and is limited by two detents.

REFERENCES:
patent: 5375858 (1994-12-01), Rohm
patent: 5435578 (1995-07-01), Rohm
patent: 5464230 (1995-11-01), Rohm
patent: 5499829 (1996-03-01), Rohm

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