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:
Aug. 03, 2010
Filed:
Sep. 09, 2008
Yoshihiro Sakaguchi, Itabashi-ku, JP;
Naoto Fujii, Itabashi-ku, JP;
Ryosuke Ikeya, Itabashi-ku, JP;
GC Corporation, Tokyo, JP;
Abstract
For accurate holding, easy attachment and detachment, and sufficient rotation force, a rotary tool has a holding and transmitting partto hold a hexagonal column of a rotated body and give rotation force, comprising a recessed part, which has an inner face having an approximately regular triangle cross sectional shape, run-off partsat corners of the triangle shape, and a uniform shape in depth direction, and plate springs, which are fixed at a bottom of the recessed partand have pawl partsat tips thereof positioned at the opening side of the recessed part, and the pawl partscan be moved into the run-off partswhile contacting to three side faces of the hexagonal column H and generate spring force, when the hexagonal column H is inserted into the recessed part