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:
May. 16, 1995
Filed:
Sep. 21, 1993
Applicant:
Inventor:
Tetsuaki Numata, Kitakatsuragi, JP;
Assignee:
Koyo Seiko Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; F16C / ;
U.S. Cl.
CPC ...
192 / ; 192 451 ; 1921 / ; 384492 ; 384625 ; 384912 ;
Abstract
In a one-way clutch, an outer ring has an internal portion whose hardness is substantially the same as that of its periphery, both hardnesses preferably being HRC 55 or more. When sprags interposed between the outer ring and inner ring are engaged with an inner peripheral surface of the outer ring and press the inner peripheral surface radially outwardly, the internal portion having the hardness of HRC 55 or more backs up the inner peripheral surface to prevent the inner peripheral surface from being deformed radially outwardly. Therefore, 'roll-over' can be prevented and the maximum transmission torque is increased.