Chuck with gripping mechanism stop

Details Chuck with gripping mechanism stop Chuck with gripping mechanism stop

1997-10-08

1999-06-22

Bishop, Steven C.

Chucks or sockets

Socket type

Obliquely guided reciprocating jaws

279 48, 279 52, 279 56, 279 59, 279 69, 279123, 279902, B23B 3112

Patent

active

059135247

ABSTRACT:
A chuck for use with a manual or powered driver having a drive shaft is provided. A generally cylindrical body has a forward section and a rearward section, the rearward section adapted to mate with the drive shaft of the driver. A gripping mechanism is actuatable to a closed position in which the gripping mechanism axially and rotationally retains a tool with respect to the body and to an open position in which the gripping mechanism does not so retain a tool. An annular nut is disposed about the body and has a threaded portion in threaded engagement with the gripping mechanism so that rotation of the nut about the body in a closing direction actuates the gripping mechanism to the closed position and rotation of the nut in an opening direction, opposite the closing direction, actuates the gripping mechanism to an open position. One of the nut and the gripping mechanism includes a rotational stop which, when the gripping mechanism reaches a predetermined position while being actuated by rotation of the nut in the opening direction, abuts the other of the nut and the gripping mechanism in a rotational direction with respect to the axis of the body to oppose further rotation of the nut in the opening direction.

REFERENCES:
patent: 2075031 (1937-03-01), Emrick
patent: 4775159 (1988-10-01), Manshitz

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