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. 16, 2024
Filed:
Mar. 10, 2020
Applicant:
Thk Co., Ltd., Tokyo, JP;
Inventors:
Assignee:
THK CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16C 3/02 (2006.01); B21D 41/04 (2006.01); B21D 51/10 (2006.01); B21D 53/10 (2006.01); F16C 29/06 (2006.01);
U.S. Cl.
CPC ...
F16C 3/02 (2013.01); B21D 41/04 (2013.01); B21D 51/10 (2013.01); B21D 53/10 (2013.01); F16C 29/06 (2013.01); F16C 2220/42 (2013.01); F16C 2220/46 (2013.01);
Abstract
This hollow shaft memberincludes paired diameter-reduced sectionsrespectively formed at both shaft ends of a hollow shaft-like tubular material by performing swaging processing on both the shaft ends, and an intermediate sectionlocated between the paired diameter-reduced sections, and having an outer diameter larger than an outer diameter of the paired diameter-reduced sections. Shapes of connection boundaries between the intermediate sectionand the diameter-reduced sectionsare formed as perpendicular step-shaped sectionsstepped substantially perpendicular to an axial direction, and the perpendicular step-shaped sectionsare formed by the swaging processing.