Title:
REDUCTION GEAR
Document Type and Number:
WIPO Patent Application WO/2007/018181
Kind Code:
A1
Abstract:
A low-noise reduction gear low in energy loss despite the fact that its structure
is simple and its size is small. Two stages of gears, i.e., the large diameter gear
(65) and the small diameter gear (66) of a third external gear (63) are supported
on a support shaft (59), and a one stage of second external gear (58) meshed with
the small diameter gear (66) is fitted to the axial one end of a crankshaft (40).
Accordingly, the axial length of the entire part of the reduction gear can be reduced
to reduce the size thereof. Furthermore, since gears are meshed with each other
only at two positions before a drive force is transmitted from a first external
gear (54) to the crankshaft (40), noise can be reduced and energy loss can be reduced.
Inventors:
NAKAMURA KOJI
Application Number:
PCT/JP2006/315602
Publication Date:
February 15, 2007
Filing Date:
August 07, 2006
Export Citation:
Assignee:
NABTESCO CORP (JP)
NAKAMURA KOJI
NAKAMURA KOJI
International Classes:
F16H1/32; B25J17/00; F16H1/06; F16H57/02; F16H57/023; F16H57/028; F16H57/029; F16H57/03
Foreign References:
| JP2005061519A | 2005-03-10 | |||
| JPH0926014A | 1997-01-28 | |||
| JPS624586A | 1987-01-10 |
Other References:
See also references of EP 1914444A4
Attorney, Agent or Firm:
OGURI, Shohei et al. (7-13 Nishi-Shimbashi 1-chome, Minato-k, Tokyo 03, JP)
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