Quick-change holder

Details Quick-change holder Quick-change holder

1981-02-06

1983-07-26

Bilinsky, Z. R.

Chucks or sockets

Socket type

Radially reciprocating jaws

279 1B, 279 22, 279 82, 285316, B23B 3122

Patent

active

043950515

ABSTRACT:
A quick-change holder for a machine tool wherein a nut holding a tool can be attached and detached by a single action. In the quick-change holder of the type, in which the nut charged with the tool can be attached to and detached from a holder body by the radial movements of a plurality of balls which are so loosely fitted in a plurality of radial through-holes formed in the holder body as to be made movable in the radial direction, according to the present invention, the aforementioned holder body is formed with an outwardly diverging conical inner circumference in which a spring having free wire ends with a gap therebetween so as to be compressible radially inwardly is fitted under radially inward compression in an inscribed relationship therewith, and the aforementioned spring is brought into abutment engagement with the balls, when the nut is not inserted, thereby to push the balls outwardly in the radial direction.

REFERENCES:
patent: 1119276 (1914-12-01), Griffith et al.
patent: 2673750 (1954-03-01), Scheiwer
patent: 2970844 (1961-02-01), Better
patent: 3266825 (1966-08-01), Magorien
patent: 4275893 (1981-06-01), Bilanceri

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