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. 23, 2018
Filed:
Feb. 02, 2015
Applicant:
Ntn Corporation, Osaka, JP;
Inventors:
Naotsugu Kitayama, Shizuoka, JP;
Shintaro Ishikawa, Shizuoka, JP;
Koji Sato, Shizuoka, JP;
Takahide Saito, Shizuoka, JP;
Assignee:
NTN CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 27/108 (2006.01); F16D 41/067 (2006.01); F16D 41/066 (2006.01); F16D 41/08 (2006.01); F16D 23/12 (2006.01);
U.S. Cl.
CPC ...
F16D 27/108 (2013.01); F16D 41/066 (2013.01); F16D 41/067 (2013.01); F16D 41/088 (2013.01); F16D 2023/123 (2013.01);
Abstract
A rotation transmission device includes an electromagnetic clutch which selectively engages and disengages a two-way clutch configured to selectively perform and stop transmission of torque between an input shaft and an output shaft. A spring holder fitted on the input shaft prevents rollers from axially moving. Spring holding pieces mounted to the spring holder are formed with respective engagement surfaces engaging with cam surfaces of an outer periphery of an inner ring such that the spring holder is rotationally fixed.