Title:
ROTATING TOOL
Document Type and Number:
WIPO Patent Application WO/2018/180775
Kind Code:
A1
Abstract:
One embodiment of a rotating tool has a cylindrical body that extends from a first end to a second end, and the body has, in order in the direction of rotation about an axis of rotation, a second twisted blade, a second twisted groove, a first twisted blade, and a first twisted groove. The first twisted blade and the second twisted blade twist from the first end side toward the second end side, the first twisted groove follows along the first twisted blade, and the second twisted groove follows along the second twisted blade. The body further has, in order from the second twisted groove in the direction of rotation, a reverse twisted blade and a reverse twisted groove, the reverse twisted blade and the reverse twisted groove twist opposite to the second twisted groove from the second twisted groove to the second end, and the reverse twisted groove follows along the reverse twisted blade. The reverse twisted blade is positioned to intersect with the extension line of the trajectory of the first twisted blade and not to intersect with extension line of the trajectory of the second twisted blade.
Inventors:
TAKATAKE YUUSAKU (JP)
Application Number:
PCT/JP2018/011052
Publication Date:
October 04, 2018
Filing Date:
March 20, 2018
Export Citation:
Assignee:
KYOCERA CORP (JP)
International Classes:
B23C5/10
Domestic Patent References:
| WO2013164342A1 | 2013-11-07 |
Foreign References:
| JPS54119198A | 1979-09-14 | |||
| JPS6347007A | 1988-02-27 | |||
| JP2013022657A | 2013-02-04 | |||
| JP2015510845A | 2015-04-13 | |||
| JP3204151U | 2016-05-19 |
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