Drill chuck

Details Drill chuck Drill chuck

1979-04-04

1980-10-28

Briggs, William R.

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

279 60, B23B 3112

Patent

active

042303273

ABSTRACT:
A drill chuck has a chuck body provided with jaws that are surrounded by a tightening sleeve which can be rotated on the body to tighten or loosen the jaws. This sleeve has an array of radially inwardly projecting sleeve teeth spaced above an annular surface on the body and normally bearing downwardly on top of similarly constituted teeth of a bearing ring bearing via balls on this bearing surface of the body. The bearing ring can be fitted underneath these teeth bayonet-fashion by passing its teeth through the gaps between the teeth of the sleeve and then rotating it. Thereafter a locking element having fingers engaging axially in the gaps between the teeth of the ring and the sleeve locks these two elements rotationally together.

REFERENCES:
patent: 2621054 (1952-12-01), Kasmr
patent: 2931660 (1960-04-01), Barwinkel
patent: 3599999 (1971-08-01), Schnizler et al.

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