IDiyas

For the Inventor, By the Inventor

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.:

US 10857582 B1

PDFFull Text
Date of Patent:
Dec. 08, 2020

Filed:

Jan. 07, 2016

Method of manufacturing tooth-shaped component, and tooth-shaped component

Applicant:

Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;

Inventors:

Mitsuharu Yamagata, Chiba, JP;

Shuji Yamamoto, Kitakyushu, JP;

Yasushi Tsukano, Kitakyushu, JP;

Assignee:

NIPPON STEEL CORPORATION, Tokyo, JP;

Attorney:

Birch, Stewart, Kolasch & Birch, LLP

Primary Examiner:

Gregory D Swiatocha

Int. Cl.
CPC ...
B21D 22/30 (2006.01); B21D 53/28 (2006.01); B21D 51/12 (2006.01); B21D 41/04 (2006.01); B21K 1/30 (2006.01); F16H 55/17 (2006.01); B21D 45/02 (2006.01); B21D 22/02 (2006.01); B21D 45/00 (2006.01);
U.S. Cl.
CPC ...
B21D 22/30 (2013.01); B21D 41/04 (2013.01); B21D 51/12 (2013.01); B21D 53/28 (2013.01); B21K 1/30 (2013.01); F16H 55/17 (2013.01); B21D 22/025 (2013.01); B21D 45/003 (2013.01); B21D 45/02 (2013.01);
Abstract

A method of manufacturing a tooth-shaped component including a process of draw-forming a workpiece so as to obtain a cylindrical container, which has a bottom surface portion and a side surface portion; a diameter-reducing process of reducing the diameter of a particular part in which a tooth tip portion is to be formed in the side surface portion of the cylindrical container, so as to increase the thickness of a corner portion such that an external shape of the corner portion between the bottom surface portion and the side surface portion satisfies the following conditional expression (ΔR+ΔH)≤2t; and a tooth shape-forming process of forming the tooth tip portion in the particular part of the cylindrical container reduced in diameter in the diameter-reducing process, so as to obtain a tooth-shaped component which has the bottom surface portion, the side surface portion, and the tooth tip portion.

Find Patent Forward Citations

Loading…