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:
Jun. 04, 2019
Filed:
Mar. 25, 2015
Nsk Ltd., Tokyo, JP;
Hiroyasu Yoshioka, Fujisawa, JP;
Yasuyuki Matsuda, Fujisawa, JP;
Kazutaka Tanaka, Fujisawa, JP;
Takashi Imanishi, Fujisawa, JP;
NSK LTD., Tokyo, JP;
Abstract
A sun roller of a friction roller-type transmission includes a movable sun roller element () capable of moving in an axial direction. Furthermore, the sun roller is provided with a loading cam mechanism which is formed along the circumferential direction of an input shaft (), the loading cam mechanism having a first cam surface (), a second cam surface () arranged facing the first cam surface () and secured to the input shaft (), rolling elements () held between the first and second cam surfaces (), and an annular holding device (), and the loading cam mechanism axially displacing the movable sun roller element (). The holding device () has an inside-diameter-surface guiding part () for positioning the holding device relative to the input shaft by being fitted over the input shaft, the guiding part being provided to the inside diameter surface.