Drill chuck for a hand-held drilling device

Details Drill chuck for a hand-held drilling device Drill chuck for a hand-held drilling device

1984-03-20

1986-01-07

Briggs, William R.

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

279 1K, 279 60, B23B 3112

Patent

active

045630135

ABSTRACT:
A drill chuck for a hand-held drilling device, such as a hammer drill, percussion drill or the like, includes a chuck body mounting a plurality of clamping jaws. An adjusting sleeve is rotatably mounted on the chuck body for positioning a partly frusto-conically shaped bracing sleeve for radially positioning the clamping jaws to secure or release a tool shank. The adjusting sleeve includes gear teeth which can be engaged by a ring gear key for rotating the adjusting sleeve relative to the chuck body. A locking sleeve is axially displaceably mounted on the adjusting sleeve. In a first position, the locking sleeve blocks engagement of the key with the ring gear teeth. In a second position, the locking sleeve is moved affording access by the key to the ring gear teeth so that the adjusting sleeve can be rotated and the clamping jaws radially positioned by the bracing sleeve.

REFERENCES:
patent: 3677657 (1972-07-01), Brucker
patent: 4083571 (1978-04-01), Schadlich et al.
patent: 4213622 (1980-07-01), Rohm
patent: 4213623 (1980-07-01), Rohm
patent: 4395170 (1983-07-01), Clarey
patent: 4418927 (1983-12-01), Rohm

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