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Patent Searching and Data


Title:
REDUCTION GEAR AND VARIABLE VALVE TIMING DEVICE USING SAME
Document Type and Number:
WIPO Patent Application WO/2010/004880
Kind Code:
A1
Abstract:
A reverse input torque which is input into the output shaft of a reduction device is to be prevented from being transmitted to the input shaft of the reduction device. The reduction gear comprises a housing (11), the input shaft (12) and the output shaft (13), an internal gear (14) secured to the housing (11), and rollers (21) so held between eccentric shaft sections (17) formed on the input shaft (12) and the internal gear (14) as to be rollable in a roller retainer section (22).  A lock means for so holding a pair of engagement elements (26) by an engagement element retainer section (28) as to be engageable with and disengageable from the housing (11) and the output shaft (13) and a lock releasing means for releasing the engagement of the housing (11) and the output shaft (13) by pressing either one of the pair of engagement elements (26) to a wedge-shaped space (25) increasing side by the engagement element retainer section (28) when an input torque acts on the input shaft (12) are installed in a plurality of wedge-shaped spaces (25) formed between the housing (11) and the output shaft (13).

Inventors:
SATO KOJI (JP)
SAITO TAKAHIDE (JP)
IMADA DAISUKE (JP)
NAKAKOJI MASAFUMI (JP)
YAMAGATA AKIRA (JP)
KAZUNO KEISUKE (JP)
Application Number:
PCT/JP2009/061616
Publication Date:
January 14, 2010
Filing Date:
June 25, 2009
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD (JP)
SATO KOJI (JP)
SAITO TAKAHIDE (JP)
IMADA DAISUKE (JP)
NAKAKOJI MASAFUMI (JP)
YAMAGATA AKIRA (JP)
KAZUNO KEISUKE (JP)
International Classes:
F16H1/32; F01L1/34; F16D13/08; F16D15/00; F16D41/10; F16D41/20
Foreign References:
JPS6293565A1987-04-30
JP2007255605A2007-10-04
JP2007139029A2007-06-07
JP2006057688A2006-03-02
JP2002357224A2002-12-13
JP2005299685A2005-10-27
JP2007333022A2007-12-27
JP2007333011A2007-12-27
JP2007127107A2007-05-24
JP2005315343A2005-11-10
Attorney, Agent or Firm:
KAMADA Bunji et al. (JP)
Bunji Kamata (JP)
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