Drill chuck with plastic chuck body

Details Drill chuck with plastic chuck body Drill chuck with plastic chuck body

1999-01-06

2000-10-10

Bishop, Steven C.

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

279 60, 279 63, 279902, 279158, 403355, 403383, 411438, 524494, B23B 3112

Patent

active

061293636

ABSTRACT:
A drill chuck has a body element formed of fiber-reinforced plastic, centered on and rotatable about an axis, and formed centered on the axis with a rearwardly open spindle hole and a forwardly open tool hole. A ring element is axially fixed but rotatable about the axis on the body element and one of the elements is formed with a plurality of angled guide passages opening axially forward into the tool hole and the other of the elements is formed centered on the axis with a screwthread exposed in the passages. Respective jaws axially and radially displaceable in the passages are each formed with a row of teeth meshing with the screwthread so that rotation of the ring element in one direction displaces the jaws toward one another and opposite rotation displaces them away from one another.

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patent: 5816583 (1998-10-01), Middleton
patent: 5918887 (1999-07-01), Miles

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