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

B - Operations, Transporting

25

D

77/28

B25D 17/08 (2006.01)

Patent

CA 1273831

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, so that both the locking members and entrainment strips can be displaced radially inwardly by the adjusting sleeve in one mode, and in another mode, the locking action can be effected with the entrainment strips maintained radially outwardly from the tool bit.

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