Chuck device

Details Chuck device Chuck device

1990-10-29

1992-10-27

Schwartz, Larry I.

Gear cutting, milling, or planing

Milling

With cutter holder

279103, 279903, B23B 3104

Patent

active

051584085

ABSTRACT:
In a support device to hold a tool or a workpiece, a tightening cylinder is provided at inside with an insertion hole for a substance to be held and on an outer circumference with a taper surface, a rotary cylinder is rotatably and externally fitted to outside of the tightening cylinder through a number of rollers, the rotary cylinder is rotated thereby the rotary cylinder is moved towards diameter side of the tightening cylinder and the tightening cylinder is contracted so as to tighten the substance to be held. Since a number of strain absorbing holes are provided on the inner circumferential surface of the tightening cylinder and scattered uniformly in the axial direction and in the circumferential direction, the deflection adaptability of the tightening cylinder is high and the tightening cylinder can be contracted by a relatively small force.

REFERENCES:
patent: 3521896 (1970-07-01), Matsumoto
patent: 3671050 (1972-06-01), Andersson et al.
patent: 4379667 (1983-04-01), Yoshimoto et al.
patent: 4630980 (1986-12-01), Kubo
patent: 4660840 (1987-04-01), Haruki
patent: 4721423 (1988-01-01), Kubo

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