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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2014/002862
Kind Code:
Provided is a very short bit which has excellent durability, can prevent shaking, and is suitable for angular rotary tools. A very short bit (10) is constituted of a cutting edge (12), a trunk (18) that is fitted into a socket section of a rotary tool and receives rotational force coming from the rotary tool, a torsion section (16) which is thinner than the diameter in other regions and into which a locking member in the socket section of the rotary tool fits, and a circular cross-section region (14) provided with a circular cross-section shape inscribed in the cross-section shape of the trunk (18). The torsion section (16) prevents twisting during application of an overload that would destroy the cutting edge (12), and the circular cross-section region (14) of the very short bit (10), fitted into the socket section, abuts against a hexagonal hole inner surface of the socket section and minimizes shaking.

TAGUCHI Yasuaki (14-22, Suwa 2-chome, Joto-ku, Osaka-sh, Osaka 21, 〒5360021, JP)
TAGUCHI Jiro (14-22, Suwa 2-chome, Joto-ku, Osaka-sh, Osaka 21, 〒5360021, JP)
CHIDO Koji (14-22, Suwa 2-chome, Joto-ku, Osaka-sh, Osaka 21, 〒5360021, JP)
DOHI Koji (14-22, Suwa 2-chome, Joto-ku, Osaka-sh, Osaka 21, 〒5360021, JP)
Application Number:
Publication Date:
January 03, 2014
Filing Date:
June 20, 2013
Export Citation:
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VESSEL INDUSTRIAL CO., LTD. (17-25, Fukaekita 2-chome Higashinari-ku, Osaka-sh, Osaka 01, 〒5370001, JP)
International Classes:
Foreign References:
Attorney, Agent or Firm:
YASUDA Toshio et al. (YASUDA & OKAMOTO, 7 & 6th Floor Shori Building, 7-19, Takaida-hondori 7-chome, Higashi-Osaka-sh, Osaka 66, 〒5770066, JP)
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