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.

Date of Patent:
Jul. 27, 2021

Filed:

Apr. 19, 2017
Applicant:

Ntn Corporation, Osaka, JP;

Inventors:

Tatsuro Sugiyama, Shizuoka, JP;

Kazuhiro Azuma, Shizuoka, JP;

Ritsuki Sakihara, Shizuoka, JP;

Assignee:

NTN CORPORATION, Osaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 3/227 (2006.01);
U.S. Cl.
CPC ...
F16D 3/227 (2013.01); F16D 2300/12 (2013.01); Y10S 403/07 (2013.01); Y10S 464/906 (2013.01); Y10T 82/10 (2015.01);
Abstract

A plunging type constant velocity universal joint includes outer and inner joint members that transmit torque therebetween through intermediation of a ball while allowing angular displacement. The outer joint member is configured to receive an internal component comprising the ball and the inner joint member so that the internal component is slidable in an axial direction. The universal joint also includes a stopper mechanism that has an annular groove, and is configured to restrict axial displacement of the internal component by allowing the ball to interfere with a circlip fitted to the annular groove. The annular groove has a conical surface, which is inclined with respect to an axial direction so that the conical surface and an axial tangent line at a contact point between the ball and the circlip form a wedge angle opened from an opening end portion of the outer joint member toward a far side.


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