Invention Application
- Patent Title: FRICTION ROLLER-TYPE TRANSMISSION
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Application No.: US15313167Application Date: 2015-03-25
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Publication No.: US20170191552A1Publication Date: 2017-07-06
- Inventor: Hiroyasu YOSHIOKA , Yasuyuki MATSUDA , Kazutaka TANAKA , Takashi IMANISHI
- Applicant: NSK LTD.
- Applicant Address: JP Tokyo
- Assignee: NSK LTD.
- Current Assignee: NSK LTD.
- Current Assignee Address: JP Tokyo
- Priority: JP2014-107325 20140523
- International Application: PCT/JP2015/059229 WO 20150325
- Main IPC: F16H13/10
- IPC: F16H13/10 ; F16H13/04 ; F16H13/08

Abstract:
A sun roller of a friction roller-type transmission includes a movable sun roller element (23) 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 (12), the loading cam mechanism having a first cam surface (75), a second cam surface (77) arranged facing the first cam surface (75) and secured to the input shaft (12), rolling elements (63) held between the first and second cam surfaces (75, 77), and an annular holding device (51), and the loading cam mechanism axially displacing the movable sun roller element (23). The holding device (51) has an inside-diameter-surface guiding part (81) 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.
Public/Granted literature
- US10309501B2 Friction roller-type transmission Public/Granted day:2019-06-04
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