Title:
CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2018/194003
Kind Code:
A1
Abstract:
The purpose of the present invention is to compact a double roller toroidal type continuously variable transmission, including a control member. The continuously variable transmission according to the present invention includes a plurality of trunnions 36 which is disposed between an input disk 20 and an output disk 22 and each of which rotatably supports a first roller 24 and a second roller 26. The first roller 24 of each trunnion 36 forms a first friction surface 24a which is in contact, at a point A, with a first toroidal surface 20a formed on the input disk 20, and the first roller 24 and the second roller 26 of each trunnion 36 form second friction surfaces 24b which are in contact with each other at a point B. The second roller 26 of each trunnion 36 forms a first friction surface 26a which is in contact, at a point C, with the second toroidal surface 22a formed on the output disk 22. The points A, B and C are arranged substantially on a straight line. Each trunnion 36 is tiltably supported by a stator 40 provided integrally with a fixed shaft 1, such that the point A and the point C change radially about the point B, and each trunnion 36 can be tilted by rotating a control shaft 12 provided within the outer diameter of the input disk 20 and the output disk 22.
Inventors:
HIRAIWA KAZUYOSHI (JP)
Application Number:
PCT/JP2018/015635
Publication Date:
October 25, 2018
Filing Date:
April 16, 2018
Export Citation:
Assignee:
FINEMECH CO LTD (JP)
International Classes:
F16H15/38
Foreign References:
| US20150211632A1 | 2015-07-30 | |||
| FR796188A | 1936-03-31 |
Attorney, Agent or Firm:
YOSHIDA, Yoshiharu (JP)
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