Title:
BORING TOOL AND BORING METHOD USING SAME
Document Type and Number:
WIPO Patent Application WO/2015/001838
Kind Code:
A1
Abstract:
Provided is an art capable of accurately cutting the inner peripheral surfaces of through-holes formed in a workpiece. A boring tool (1) for boring a workpiece (W) having coaxially arranged through-holes is provided with: a shaft member (11) which is rotated and driven by a machine tool; a first cutting edge (12) which cuts the inner peripheral surfaces of the through-holes; a first guide (13) which slides on the inner peripheral surfaces of the through-holes having been cut by the first cutting edge (12); a second cutting edge (14) which cuts the inner peripheral surfaces of the through-holes having been cut by the first cutting edge (12); and a second guide (15) which slides on the inner peripheral surfaces of the through-holes having been cut by the second cutting edge (14). During the cutting of the through-holes by the second cutting edge (14), the first guide (13) slides on the inner peripheral surface of at least one through-hole having been cut by the first cutting edge (12), and during the cutting of the through-holes by the second cutting edge (14), the second guide (15) slides on the inner peripheral surface of at least one through-hole having been cut by the second cutting edge (14).
Inventors:
TERANISHI TAKASHI (JP)
Application Number:
PCT/JP2014/061836
Publication Date:
January 08, 2015
Filing Date:
April 28, 2014
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
International Classes:
B23B29/02; B23B41/00; B23B41/12; B23B49/00
Foreign References:
JPS5531549U | 1980-02-29 | |||
JPH0493105A | 1992-03-25 | |||
JP2001525733A | 2001-12-11 | |||
US6287057B1 | 2001-09-11 | |||
JP2006305641A | 2006-11-09 | |||
JP2012030344A | 2012-02-16 | |||
JPH0852616A | 1996-02-27 |
Attorney, Agent or Firm:
YANO Juichiro (JP)
Juichiro Yano (JP)
Juichiro Yano (JP)
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