Title:
CHUCK FOR CUTTING TOOL
Document Type and Number:
WIPO Patent Application WO/1996/037326
Kind Code:
A1
Abstract:
A chuck for a cutting tool, which facilitates exchange of a collet. A fastening collar (12) is threaded onto an outside of a chuck cylinder (14), and is formed inside thereof with a guide groove (24) which comprises a deep groove (24a) and a shallow groove (24b). Received axially slidably in the chuck cylinder (14) is a drive shaft (16), from which an ear shaft (26a) laterally extends to be fitted into the guide groove (24). A collet (20) is detachably mounted to a tip end of the drive shaft (16). The fastening collar (12) is turned so as to guide the ear shaft (26a) to a position other than the deep groove (24a) in the guide groove (24), thereby lifting the drive shaft (16) for supporting the collet (20). Also, the fastening collar (12) is turned so as to guide the ear shaft (26a) into the deep groove (24a), thereby pushing the drive shaft (16) for dismounting the collet (20). Accordingly, only turning of the fastening collar (12) can mount and dismount the collet (20).
Inventors:
TAGAMI TETSURO (JP)
Application Number:
PCT/JP1996/001361
Publication Date:
November 28, 1996
Filing Date:
May 23, 1996
Export Citation:
Assignee:
TAGAMI TETSURO (JP)
International Classes:
B23B31/20; (IPC1-7): B23B31/20
Foreign References:
| JPH0337853B2 | 1991-06-06 | |||
| JPH0340497B2 | 1991-06-19 | |||
| JPH0135765B2 | 1989-07-27 |
Other References:
See also references of EP 0773081A4
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