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:
Jul. 05, 2016
Filed:
Nov. 19, 2013
Sumitomo Heavy Industries, Ltd., Tokyo, JP;
Yuichi Nishitani, Obu, JP;
Tetsuzo Ishikawa, Obu, JP;
Yoshitaka Shizu, Obu, JP;
Sakae Mitsufuji, Obu, JP;
Shinichi Nishibe, Obu, JP;
SUMITOMO HEAVY INDUSTRIES, LTD., Tokyo, JP;
Abstract
In a shaft coupling structure in which a first shaft and a second shaft are coupled with each other by a combination of a key coupling and a clamp coupling, the first shaft has a cylindrical portion into which the second shaft is inserted and slits which are formed in the cylindrical portion by cutting off portions thereof in the axial direction, and a clamping fastener is mounted on portions of the outer circumference of the first shaft in which the slits are formed and the slit can be also used as a keyway of the key, and the plurality of slits are formed in the circumferential direction.