Chucks or sockets – Socket type – Obliquely guided reciprocating jaws
Patent
1994-03-18
1995-11-07
Bishop, Steven C.
Chucks or sockets
Socket type
Obliquely guided reciprocating jaws
279140, 279902, B23B 3112
Patent
active
054642302
ABSTRACT:
A drill chuck has a first body rotatable about an axis and formed with a plurality of angularly spaced angled guides, respective jaws slidable in the guides, and a second body axially fixed but rotatable on the first body. Interengaging screwthread formations on the second body and engaged with the jaws radially displace the jaws on the first body toward each other on forward rotation of one of the bodies relative to the other body in a tightening direction and radially displace of the jaws away from each other on opposite backward rotation of the one body relative to the other body in a loosening direction. A locking ring axially displaceable on the other body is formed with at least one tooth and the one body is formed with another tooth axially meshable with the locking-ring tooth in a front locking position of the locking ring to inhibit rotation of the bodies relative to each other. A holding ring axially fixed on the other body is rotatable thereon between angularly offset locked and unlocked positions. Interengaging cam formations on the rings displace the locking ring into the rear position on rotation of the holding ring from the locked into the unlocked position. Stops on the other body and on the holding ring are engageable with each other for limiting angular travel of the holding ring on the other body.
REFERENCES:
patent: 4836563 (1989-06-01), Rohm
patent: 5145192 (1992-09-01), Rohm
patent: 5145193 (1992-09-01), Rohm
patent: 5174588 (1992-12-01), Reibetanz et al.
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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