Chucks or sockets – Radially reciprocating jaws – Wedge actuated
Patent
1981-01-14
1983-10-18
Bilinsky, Z. R.
Chucks or sockets
Radially reciprocating jaws
Wedge actuated
279123, B23B 3116
Patent
active
044101929
ABSTRACT:
Three gripping jaws are slidably engaged in respective radial guide grooves in the front face of an annular jaw carrier for holding work to be machined. Each gripping jaw has a wedge integrally projecting rearwardly therefrom. The wedge is of T-shaped cross section, including a web extending radially of the jaw carrier and a flange at the inner end of the web. Slidably mounted in the jaw carrier for axial movement therein, a plunger has undercut wedge grooves for slidably receiving the flanges and parts of the webs of the respective wedges, causing the radial motion of the gripping jaws by a wedging action upon axial motion of the plunger. A pair of opposed overhanging portions formed by each undercut wedge groove in the plunger are caught between the jaw carrier and the flange of one of the wedges. Thus, in spite of the unavoidable centrifugal displacement of the gripping jaws during the high-speed rotation of the chuck, the overhanging portions of the plunger are subject to no significant bending stresses, being held against the jaw carrier, and so are protected from rupture or strain.
REFERENCES:
patent: 1886083 (1932-01-01), Church
patent: 2704214 (1955-01-01), Beausoleil
patent: 3198533 (1965-01-01), Goodrum
patent: 3494627 (1967-11-01), Pirman
patent: 3682491 (1972-08-01), Sakazaki
patent: 3765691 (1973-01-01), Saruhashi
patent: 3926446 (1975-01-01), Rohm
patent: 4288085 (1981-09-01), Antoni
Nobukawa Akira
Sawaguchi Tatsuei
Bilinsky Z. R.
Howell Daniel W.
Kabushiki Kaisha Kitagawa Tekkosho
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