Free floating actuating sleeve for keyless chuck
AssigneeThe Singer Company
InventorThomas G. Glore
Life of this patent
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Abstract
A compact keyless chuck having means therein for isolating inasmuch as possible, impact and abrasion on an operator's hand normally encountered when the chuck jaws bottom, for example, about a rotatable work tool. A free floating sleeve, rotatable and slidable with respect to the chuck encircles the same and is provided with a surface thereon for implementing actuation of the tightening or loosening of the rotatable work tool upon motorized operation of the machine spindle.
Claims3
A keyless chuck for a motorized tool having a body supporting a drivemotor, a spindle shaft rotatable by said drive motor, and a chuck supported for rotation on said spindle shaft, said chuck comprising:
- a chuck body;
- chuck jaws retained for rotation with said chuck and constrained for sliding movement on said chuck body toward and away from the axis thereof;
- grip actuating means responsive to rotation of said chuck by selective manipulation by an operator for sliding said chuck jaws into and out of gripping relation about a rotatable work tool;
- said grip actuating means including an annular collar axially constrained and rotatable on said chuck body;
- and means threadedly interconnecting said collar and each of said chuck jaws;
- the improvement rendering said chuck keyless comprising:
- a sleeve freely slidable and rotatable about said chuck body and encircling said annular collar;
- and means cooperating with means on said body and rendered effective by operator influenced slidable motion of said sleeve for establishing effectiveness of said grip actuating means to slide said chuck jaws about a rotatable work tool in response to rotation of said chuck, whereby movement of said grip actuating means is isolated from said operator by said sleeve.
Dependencies are inferred from the claim text.