Title:
STEPLESS TRANSMISSION
Document Type and Number:
WIPO Patent Application WO/2014/069141
Kind Code:
A1
Abstract:
A stepless transmission is provided with: a shaft (60); first and second rotating bodies (10, 20); a sun roller (30); a carrier (40); planetary balls (50); axial force generation devices (71, 72) which generate axial force in the axial direction, the axial force pressing the first and second rotating bodies (10, 20) against the planetary balls (50); and a tilting force application section (46) which changes the transmission ratio between the input and the output by tilting the planetary balls (50). The Young's moduli of a contact section (P1, (P2)) and an additional contact section, the contact section (P1, (P2)) and the additional contact section being the contact sections where one of the first and second rotating bodies (10, 20) and each ball (50) are in contact with each other, are set to be greater than the Young's moduli of a contact section (P2, (P1)) and an additional contact section, the contact section (P2, (P1)) and the additional contact section being the contact sections where the other of the first and second rotating bodies (10, 20) and each ball (50) are in contact with each other.
Inventors:
OGAWA HIROYUKI (JP)
HIBINO AKIRA (JP)
ARATSU YUKI (JP)
HIBINO AKIRA (JP)
ARATSU YUKI (JP)
Application Number:
PCT/JP2013/076594
Publication Date:
May 08, 2014
Filing Date:
September 30, 2013
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
OGAWA HIROYUKI (JP)
HIBINO AKIRA (JP)
ARATSU YUKI (JP)
OGAWA HIROYUKI (JP)
HIBINO AKIRA (JP)
ARATSU YUKI (JP)
International Classes:
F16H15/52
Domestic Patent References:
| WO2011114494A1 | 2011-09-22 | |||
| WO2010092661A1 | 2010-08-19 |
Foreign References:
| JP2010101496A | 2010-05-06 | |||
| JP2004044686A | 2004-02-12 | |||
| JP2009138924A | 2009-06-25 | |||
| JP2012112424A | 2012-06-14 | |||
| JP2002188702A | 2002-07-05 | |||
| JP2012524225A | 2012-10-11 | |||
| JP2012501418A | 2012-01-19 | |||
| JP2009541663A | 2009-11-26 | |||
| JPS4720535B | ||||
| EP0528381A1 | 1993-02-24 | |||
| JP2011202699A | 2011-10-13 | |||
| JP2011190882A | 2011-09-29 | |||
| JP2010101496A | 2010-05-06 | |||
| JP2005180498A | 2005-07-07 |
Other References:
See also references of EP 2916041A4
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
Hiroaki Sakai (JP)
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