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:
Apr. 02, 2019
Filed:
Jun. 06, 2016
Applicant:
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Inventors:
Kenji Imanishi, Kishiwada, JP;
Kenji Tamura, Takatsuki, JP;
Ken Yoshino, Guangdong, CN;
Kunihiro Yabuno, Matsubara, JP;
Koichiro Ishihara, Kyoto, JP;
Assignee:
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 3/04 (2006.01); F16F 15/24 (2006.01); F16C 3/20 (2006.01); F16C 3/08 (2006.01); F16F 15/28 (2006.01); F16C 3/14 (2006.01);
U.S. Cl.
CPC ...
F16C 3/20 (2013.01); F16C 3/08 (2013.01); F16F 15/24 (2013.01); F16F 15/283 (2013.01); F16C 3/14 (2013.01); F16C 2202/06 (2013.01); F16C 2360/22 (2013.01);
Abstract
A crankshaft includes journals serving as a central axis of rotation, crank pins decentered from the journals, and crank arms connecting the journals and the crank pins. Some or all of the crank arms have counterweights integrated therewith. At least one of the crank arms has a recess in a crank pin facing surface. The crank arm includes ribs formed respectively in two side portions of the recess along a periphery of the crank arm.