Drill chuck

Details Drill chuck Drill chuck

2006-11-21

2010-12-07

Gates, Eric A (Department: 3726)

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

C279S152000, C279S902000

Reexamination Certificate

active

07845650

ABSTRACT:
A drill chuck has a body formed with a forwardly open threaded bore and a holder sleeve rotatable on the body and formed with a plurality of forwardly open angled guides angularly equispaced about the axis. Respective jaws are shiftable radially along the guides between a widely spaced outer position and a closely spaced inner position. Each jaw has a central tool-engaging tooth and a pair of faces flanking the respective tooth, and each tooth and the adjacent flanking faces are so dimensioned and oriented relative to each other that in the inner position the flanking faces of adjacent jaws bear on one another. A pusher threaded into the bore bears axially forward on the jaws and is angularly coupled to the jaws and holder sleeve so that relative rotation or the chuck body and pusher moves the jaws between their inner and outer positions.

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