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Title:
CONTINUOUSLY VARIABLE TRANSMISSION DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/021360
Kind Code:
A1
Abstract:
This continuously variable transmission device is provided with: an input shaft (20); an output shaft (30); an input roller (50); an output ring (80); a transmission ring (90); a plurality of planetary rollers (60) having a first conical section (61), which contacts the outside of the input roller and contacts the inside of the output ring, and a second conical section (62), which contacts the inside of the transmission ring; a mobile holder (70) that holds the plurality of planetary rollers in a manner able to rotate around the respective rotational axes and in a manner so as to be able to revolve around a central axis; and loading cam mechanisms (CM1, CM2) that generate a thrust loading. The surfaces (52, 82, 91) of the input roller (50), output ring (80), and transmission ring (90) that contact the planetary rollers are formed in a convex curved surface having a predetermined curvature, and the planetary rollers (60) are held in the mobile holder in a manner so that the angle of obliquity of the rotational axes (S) with respect to the central axis is variable. As a result, it is possible to automatically balance the moment acting on the planetary rollers to a position that is constantly sero.

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Inventors:
SEKIYA MITSURU (JP)
Application Number:
PCT/JP2013/070701
Publication Date:
February 06, 2014
Filing Date:
July 31, 2013
Export Citation:
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Assignee:
MIKUNI KOGYO KK (JP)
International Classes:
F16H13/08; F16H25/20
Foreign References:
JP2010112451A2010-05-20
JPH09501760A1997-02-18
JP2004036853A2004-02-05
JP2009057993A2009-03-19
JPH06280961A1994-10-07
JPH10274306A1998-10-13
JPH09177920A1997-07-11
JP2007255699A2007-10-04
Other References:
See also references of EP 2881619A4
Attorney, Agent or Firm:
YAMAMOTO TAKATOSHI (JP)
Takatoshi Yamamoto (JP)
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