The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2015
Filed:
Dec. 08, 2009
Jiro Osawa, Toyokawa, JP;
Takuma Aoyama, Toyokawa, JP;
Tasuku Itoh, Toyokawa, JP;
Ikuo Takikawa, Toyokawa, JP;
Jiro Osawa, Toyokawa, JP;
Takuma Aoyama, Toyokawa, JP;
Tasuku Itoh, Toyokawa, JP;
Ikuo Takikawa, Toyokawa, JP;
OSG Corporation, Aichi, JP;
Abstract
A throw-away rotating tool includes plural protrusions formed in a part of an outer peripheral wall of a projecting coupling portion. Since the twist angle and a twist direction of the protrusions are set in such a way that with relative rotation when coupling the projecting coupling portion and erected portions together, due to the reaction force received by the protrusions from inner peripheral walls, the projecting coupling portion is pulled to the rear and side of the erected portions and the projecting coupling portion is stably held between the erected portions. Since the number of portions that require stringent dimension control and high machining accuracy can be reduced, productivity can be improved.