Drill tool holder

Details Drill tool holder Drill tool holder

1989-03-29

1991-05-21

Schwartz, Larry I.

Chucks or sockets

Socket type

Side detent

279 19, 279 1Q, 173 48, B23B 3122

Patent

active

050168924

ABSTRACT:
A drill tool-holder comprises close to its end at least two radial cavities each opening outwardly of the tool-holder and inwardly of its axial bore, and each adapted for housing a ball, or cylinder, the outlet orifices of the cavities being dimensioned so that the ball, or cylinder, may be introduced from the outside into these cavities, but cannot come out thereof towards the inside of the tool-holder axial bore, which tool-holder is characterized by the fact that there is associated therewith a piece made from a hard material (3) whose body (10) has the same form as the cavities and may be housed therein without play, and has on each of its opposite faces a projecting portion (11,12) in the form of a small bar.

REFERENCES:
patent: Re31755 (1984-12-01), Wanner et al.
patent: 1283173 (1918-10-01), Heinkel
patent: 2386469 (1945-10-01), Iversen
patent: 2501758 (1950-03-01), Cauchois
patent: 3536335 (1970-10-01), Schmuck
patent: 4629375 (1986-12-01), Lieser
patent: 4691929 (1987-09-01), Neumaier et al.

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