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:
Nov. 17, 2020
Filed:
Nov. 18, 2014
Applicant:
Komatsu Ltd., Tokyo, JP;
Inventors:
Masayuki Ohishi, Neyagawa, JP;
Masaharu Amano, Hirakata, JP;
Assignee:
KOMATSU LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B 5/00 (2006.01); B23K 9/04 (2006.01); B23K 9/00 (2006.01); C21D 9/38 (2006.01); B21K 23/02 (2006.01); C21D 9/32 (2006.01); B21K 1/10 (2006.01); B21K 1/06 (2006.01); B21J 5/00 (2006.01); C21D 7/13 (2006.01); B21L 9/06 (2006.01); B21J 1/00 (2006.01); B21K 1/30 (2006.01); B23K 9/173 (2006.01); B23K 9/23 (2006.01); B32B 15/01 (2006.01); B23K 101/04 (2006.01); C21D 7/00 (2006.01); B62D 55/12 (2006.01);
U.S. Cl.
CPC ...
B23K 9/04 (2013.01); B21J 1/003 (2013.01); B21J 5/002 (2013.01); B21K 1/06 (2013.01); B21K 1/063 (2013.01); B21K 1/10 (2013.01); B21K 1/30 (2013.01); B21K 23/02 (2013.01); B21L 9/065 (2013.01); B23K 9/0026 (2013.01); B23K 9/044 (2013.01); B23K 9/173 (2013.01); B23K 9/23 (2013.01); B32B 15/01 (2013.01); C21D 7/13 (2013.01); C21D 9/32 (2013.01); C21D 9/38 (2013.01); B23K 2101/04 (2018.08); B62D 55/12 (2013.01); C21D 7/00 (2013.01); C21D 2251/04 (2013.01);
Abstract
A sprocket wheel, which is a machine component configured to slide relative to a bushing while being in contact with the bushing in an outer peripheral surface, includes a base made of a first metal, and an overlay that covers the base so as to constitute the outer peripheral surface. The surface of the overlay constituting the outer peripheral surface has been smoothed. Such a smoothed surface of the overlay makes the sprocket wheel less damaging to the bushing.