Compact chuck assembly for a power drill

Details Compact chuck assembly for a power drill Compact chuck assembly for a power drill

1998-06-05

1999-07-27

Pitts, Andrea L.

Cutting by use of rotating axially moving tool

Tool-support

With tool-retaining means

279 60, 279 62, B23B 3102

Patent

active

059279141

ABSTRACT:
A chuck has a chuck body formed centered on an axis with a rearwardly open hole adapted to receive a drill spindle and with a plurality of axially forwardly and axially rearwardly open guide passages, an adjustment ring axially fixed but rotatable about the axis on the chuck body and formed with an internal screwthread, and respective jaws displaceable in the passages between axially front and radially closely spaced positions and axially back and radially widely spaced positions and having teeth meshing with the screwthread. The jaws project in the back positions rearward from the chuck body axially rearward past the hole receiving the spindle so that rotation of the ring in a forward direction on the chuck body displaces the jaws axially forward and radially inward and opposite rotation of the ring in a reverse direction on the chuck body displaces the jaws axially rearward and radially apart.

REFERENCES:
patent: 896051 (1908-08-01), Ashey
patent: 1053530 (1913-02-01), North
patent: 3000642 (1961-09-01), Kawasaki
patent: 4775159 (1988-10-01), Manschitz
patent: 5072954 (1991-12-01), Mack
patent: 5232230 (1993-08-01), Lin

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