Tool holder device

Details Tool holder device Tool holder device

1982-06-25

1985-01-01

Briggs, William R.

Gear cutting, milling, or planing

Milling

With cutter holder

173 48, 173114, 279 194, 279 196, 279 75, B23Q 312, B23B 3110, E02D 702

Patent

active

044914440

ABSTRACT:
A tool holder for a drill capable of performing only rotary drilling or the combination of rotary and percussive drilling includes a tubular retainer member in which the shank of a tool can be inserted. Locking members mounted in the retainer member fit into recesses in the tool shank for holding it in the retainer member. During percussive drilling the locking members are axially displaceable in the recesses and the tool experiences a certain amount of axial play, however, when only rotary drilling is performed the locking members are held against axial displacement by stops so that the tool does not have any axial play. One stop forms a part of the retainer member and another stop is part of a member slidably displaceable relative to the retainer member.

REFERENCES:
patent: 3000225 (1961-09-01), Taylor
patent: 3507337 (1970-04-01), Chromy
patent: 3536335 (1970-10-01), Schmuck
patent: 4107949 (1978-08-01), Wanner et al.
patent: 4131165 (1978-12-01), Wanner et al.
patent: 4174113 (1979-11-01), Eckman
patent: 4366869 (1983-01-01), Bereiter
patent: 4434859 (1984-03-01), Rumpp et al.

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