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:
Jul. 18, 2017
Filed:
Dec. 28, 2015
Jtekt Corporation, Osaka-shi, Osaka, JP;
Koyo Machine Industries Co., Ltd., Yao-shi, Osaka, JP;
Futoshi Kamimura, Okazaki, JP;
Kiyoshi Iwase, Nissin, JP;
Mitsuharu Ozaki, Kashiba, JP;
Daiki Yano, Shiki-gun, JP;
Kazuhide Honda, Okazaki, JP;
Yasutaka Fukumoto, Toyota, JP;
Osamu Honda, Fujiidera, JP;
Naoki Fujimoto, Kashiwara, JP;
Takashi Maeda, Nara, JP;
JTEKT CORPORATION, Osaka-shi, JP;
KOYO MACHINE INDUSTRIES CO., LTD., Yao-shi, JP;
Abstract
A telescopic shaft includes: an inner shaft where a pair of recessed grooves that face each other in a direction perpendicular to an axis and extend in an axial direction are formed; an outer shaft where a pair of recessed grooves that face each other in the direction perpendicular to the axis and extend in the axial direction are formed; a plurality of rolling bodies that are disposed between each of the recessed grooves and the corresponding recessed groove so as to form a line in the axial direction; a pair of stoppers; and a buffer body unit. Each of the stoppers restricts falling of a rolling body at an end portion of the corresponding line from the corresponding recessed groove of the inner shaft. The buffer body unit integrally includes a pair of buffer bodies, and a connection portion that connects the pair of buffer bodies.