Chucks or sockets – Socket type – Obliquely guided reciprocating jaws
Patent
1994-04-11
1995-07-25
Bishop, Steven C.
Chucks or sockets
Socket type
Obliquely guided reciprocating jaws
279140, 279902, B23B 3112
Patent
active
054355788
ABSTRACT:
A self-tightening chuck has a chuck body centered on an axis and adapted to be rotated thereabout, a plurality of jaws radially displaceable on the body, and an adjustment sleeve rotatable on the body, formed with radially inwardly directed teeth, and engaged with the jaws such that rotation of the adjustment sleeve on the body in a forward direction displaces the jaws radially inward on the body and opposite rotation in a reverse direction displaces the jaws radially outward. A tightening ring rotatable on the body has stop formations for limiting its rotation on the body to a predetermined angular travel and a tightening spring braced angularly between the tightening ring and the body urges the tightening ring angularly in the forward direction. A locking body radially displaceable on the tightening ring is formed with teeth meshable with the tightening-ring teeth. A locking spring braced radially against the locking body urges the locking-body teeth into mesh with the adjustment-sleeve teeth. A locking ring angularly displaceable on the chuck body has a formation engageable with the body and displaceable between an unlocked position displacing the locking body radially inward out of engagement with the adjustment sleeve and a locked position leaving the locking body pressed radially by its locking spring against the adjustment sleeve. Stop formations engageable with the locking ring limit angular travel of the locking ring on the chuck.
REFERENCES:
patent: 4272087 (1981-06-01), Rohm
patent: 4583751 (1986-04-01), Rohm
patent: 5236206 (1993-08-01), Rohm
patent: 5375857 (1994-12-01), Rohm
patent: 5375858 (1994-12-01), Rohm
Bishop Steven C.
Dubno Herbert
Wilford Andrew
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