Title:
FRICTION-TYPE STEPLESS TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2016/052044
Kind Code:
A1
Abstract:
A friction-type stepless transmission has: annular first to third rotating bodies (31-33) centered on the main axis (J); planetary rollers (20) arranged in the circumferential direction of the main axis (J); support pins (21) for rotatably supporting the planetary rollers (20); and a planetary roller support section (22) for supporting the support pins in a tiltable manner in a cross-section including the main axis (J). The planetary rollers (20) each have an annular recess (230) in the outer peripheral surface thereof centered on the support pin (21). The first rotating body (31) is in contact with the rolling surfaces (23) of the planetary rollers (20) from one radial side at a position axially below the recesses (230). The first rotating body (31) is in contact with the rolling surfaces (23) of the planetary rollers (20) from the one radial side at a position axially above the recesses (230). The third rolling body (33) is in contact with the recesses (230) in the planetary rollers (20) from the other radial side and is supported so as to be vertically movable relative to the planetary roller support sections (22).
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Inventors:
OKAMURA KIKUO (JP)
INOUE HITOSHI (JP)
DEGUCHI NORIO (JP)
INOUE HITOSHI (JP)
DEGUCHI NORIO (JP)
Application Number:
PCT/JP2015/074647
Publication Date:
April 07, 2016
Filing Date:
August 31, 2015
Export Citation:
Assignee:
NIDEC SHIMPO CORP (JP)
International Classes:
F16H15/52; F16H15/04
Foreign References:
| US2469653A | 1949-05-10 | |||
| JPS3728132Y1 | ||||
| JP2008516165A | 2008-05-15 | |||
| JP2003021212A | 2003-01-24 | |||
| JPS5969565A | 1984-04-19 | |||
| JP2012122567A | 2012-06-28 |
Other References:
See also references of EP 3203114A4
Attorney, Agent or Firm:
KITAMURA, HIDEAKI (JP)
Hideaki Kitamura (JP)
Hideaki Kitamura (JP)
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