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:
Dec. 12, 2017
Filed:
Jun. 18, 2014
Shiroki Corporation, Fujisawa-shi, Kanagawa, JP;
Hirohito Aoi, Kanagawa, JP;
Tomohiro Enokijima, Kanagawa, JP;
SHIROKI CORPORATION, Kanagawa, JP;
Abstract
A method of manufacturing a connecting rod is provided. The method includes the steps of (1) forming, on a long rod material, a rotation transmitting portion having a non-circular cross section; (2) cutting the rod material to provide the rotation transmitting portion at each of both ends; and (3) forming, by cutting work, a small-diameter column portion and a tapered portion at a first end of the cut rod material from a tip-end side. The small-diameter column portion has a diameter smaller than a diameter of the rotation transmitting portion. The tapered portion is provided continuously from the small-diameter column portion and gradually increases in diameter. The rotation transmitting portion is provided continuously from the tapered portion.