Drill bit chuck for drilling and cutting devices

Details Drill bit chuck for drilling and cutting devices Drill bit chuck for drilling and cutting devices

1986-11-12

1987-09-08

Weidenfeld, Gil

Chucks or sockets

Socket type

Lost motion

279 1B, 279 194, 279 81, B23B 3110

Patent

active

046919295

ABSTRACT:
A tool chuck for securing a tool bit in a drilling and cutting device includes a guide tube into which the tool bit is inserted and an adjusting sleeve displaceable relative to the guide tube. The guide tube has spaced first and second apertures with the first apertures holding locking members and the second apertures holding entrainment strips. The adjusting sleeve has alternating first and second pockets in its inside surface for receiving the locking members and the entrainment strips. With a tool bit having slots for both the locking members and the entrainment strip, both the locking members and entrainment strips can be displaced radially inwardly by the adjusting sleeve. If the tool bit has only slots for the locking members, the locking action can be effected with the entrainment strips maintained radially outwardly from the tool bit.

REFERENCES:
patent: 3985368 (1976-10-01), Bettes et al.
patent: 4107949 (1978-08-01), Wanner et al.
patent: 4131165 (1978-12-01), Wanner et al.
patent: 4502824 (1985-03-01), Dohse et al.
patent: 4626146 (1986-12-01), Neumaier

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