Drill chuck

Details Drill chuck Drill chuck

1989-03-13

1991-02-12

Bilinsky, Z. R.

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

279 61, 279 1K, B23B 522

Patent

active

049918605

ABSTRACT:
Clamp jaws are arranged symmetrically about a rotation axis in a chuck body and guided in a direction inclined to the rotation axis. A tightening ring is mounted rotatable and axially nonslidable on the chuck body and is provided with a tightening thread for moving the clamp jaws which is engaged with a row of teeth on each of the clamp jaws. An opening for connection of a drill spindle is located in the tightening ring. As seen in a direction running from the drill spindle to the clamp jaws, the tightening thread has a direction of rotation, by which the clamp jaws are moved toward the drill tool or tighten on the drill tool in clockwise rotation of the tightening ring on the chuck body. Thus the drill chuck has aftertightening and selftightening properties.

REFERENCES:
patent: 893348 (1908-07-01), Morrow
patent: 933179 (1909-09-01), Jacobs
patent: 3462164 (1969-08-01), Wightman
patent: 3992020 (1976-11-01), Derbyshire

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