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:
Mar. 27, 2001
Filed:
Aug. 03, 1998
Koji Ishikawa, Fujisawa, JP;
Hiroyuki Ito, Fujisawa, JP;
Hisashi Machida, Fujisawa, JP;
Nobuo Goto, Fujisawa, JP;
Makoto Fujinami, Chiba, JP;
Hiroshi Kato, Fujisawa, JP;
NSK Ltd., Tokyo, JP;
Abstract
A continuously variable transmission provided with a rotary shaft characterized in that a ball spline is formed between an inner peripheral surface of a first disc and an outer peripheral surface of an intermediate portion of a rotary shaft, a restraining members for limiting displacement of balls of a ball spline is provided on an inner side of the inner peripheral surface of the first disc, a small-diametered portion is formed on the outer peripheral surface of the intermediate portion of the rotary shaft and between the first disc and a second disc, and the restraining members is mountable through the small-diametered portion with the restraining members and the small-diametered portion axially aligned with each other.