Chucks or sockets – Socket type – Obliquely guided reciprocating jaws
Patent
1996-03-05
1997-11-11
Bishop, Steven C.
Chucks or sockets
Socket type
Obliquely guided reciprocating jaws
279 60, 279902, B23B 3110
Patent
active
056855494
ABSTRACT:
A chuck assembly for a tool bit includes a hollow chuck body which has a front end formed with a locking portion and which is formed with at least one radial opening therethrough, a cylindrical push member which is disposed slidably in the chuck body and which is formed with an external screw thread, a hollow truncated cone-shaped seater which is disposed in front of the push member and which is formed with a plurality of angularly spaced and longitudinally extending slits, a plurality of elongated clamping members which extend slidably and respectively into the slits and which have rear ends connected to the push member, a hollow truncated cone-shaped front cap which encloses the seater and which has a rear end connected to the locking portion of the chuck body, and a drive ring which is provided rotatably around the chuck body and which is formed with an internal screw thread that meshes with the external screw thread of the push member.
REFERENCES:
patent: 1321969 (1919-11-01), Avis
patent: 1775994 (1930-09-01), Emrick
patent: 4527809 (1985-07-01), Umbert
patent: 5031925 (1991-07-01), Tatsu et al.
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