Title:
ROTARY TOOL
Document Type and Number:
WIPO Patent Application WO/2003/002316
Kind Code:
A1
Abstract:
A rotary tool, wherein a tubular bush (20) having an axial center part partly formed thin so as to be reduced in diameter is fittingly inserted into a center hole (12) of a tubular tool main body (11), the bush is fixed to both ends of the center hole of the tool main body by shrinkage fit, brought into contact with the center hole, in fluid−tight state, on both end sides of the tool main body, and provided with annular space parts (24a, 25a) in the spaces thereof from the center hole at the axial intermediate parts of the tool main body, and fluid is sealed into the annular space part and pressurized to reduce the diameter of the thin walled part of the bush in the state of a rotating shaft (31) being fittingly inserted into the center hole through the bush, whereby the rotary tool can be fixed to the rotating shaft.
Inventors:
UMEDA TADASHI (JP)
IDE TSUYOSHI (JP)
IDE TSUYOSHI (JP)
Application Number:
PCT/JP2001/005537
Publication Date:
January 09, 2003
Filing Date:
June 27, 2001
Export Citation:
Assignee:
KANEFUSA KNIFE & SAW (JP)
UMEDA TADASHI (JP)
IDE TSUYOSHI (JP)
UMEDA TADASHI (JP)
IDE TSUYOSHI (JP)
International Classes:
B27G13/06; (IPC1-7): B27G13/06
Foreign References:
| JPS6275902U | 1987-05-15 | |||
| JPS60127007A | 1985-07-06 |
Attorney, Agent or Firm:
Watanabe, Kohji (12-9 Ohe 3-chom, Ichinomiya-shi Aichi, JP)
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