Title:
CONTINUOUSLY VARIABLE TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2007/029451
Kind Code:
A1
Abstract:
A continuously variable transmission capable of operating without slippage
even if a friction coefficient is reduced in low surface pressure, high temperature
operating conditions. The continuously variable transmission has a first shaft
(12) rotatably supported by a housing (10), a second shaft (36) rotatably supported
by the housing (10), a V-pulley (16) having a variable groove width and supported
by the first shaft (12), a ring (30) in contact with the V-pulley (16) at both surfaces
of the ring and is supported by the V-pulley, and a guide plate (40) for moving the
ring (30) around the second shaft (36), in the direction in which the ring (30)
is pressed to the V-pulley (16). The transmission has a mechanism for increasing
pressing force produced by the guide plate (40), and the mechanism increases
contact loads on contact sections in an operating condition in which a friction
coefficient reduces.
Inventors:
SAKAGUCHI TOMOYA (JP)
ITOH YUICHI (JP)
ITOH YUICHI (JP)
Application Number:
PCT/JP2006/315938
Publication Date:
March 15, 2007
Filing Date:
August 11, 2006
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD (JP)
SAKAGUCHI TOMOYA (JP)
ITOH YUICHI (JP)
SAKAGUCHI TOMOYA (JP)
ITOH YUICHI (JP)
International Classes:
F16H15/42
Foreign References:
| JP2005172065A | 2005-06-30 | |||
| JP2004108482A | 2004-04-08 | |||
| JPH06294463A | 1994-10-21 |
Attorney, Agent or Firm:
EHARA, Syogo et al. (Edobori 1-chome Nishi-k, Osaka-shi Osaka02, JP)
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