POWER TRANSMISSION DEVICE

Title:

POWER TRANSMISSION DEVICE

Document Type and Number:

WIPO Patent Application WO/2010/090140

Kind Code:

A1

Abstract:

Power is more reliably transmitted, without increasing manufacturing costs or hindering miniaturization. A mechanical paradox gear mechanism is constructed from a sun gear member (31), a planetary gear member (35), a first ring gear member (33), and a second ring gear member (34), and a clutch mechanism (60) is interposed between an input gear member (40) and the first ring gear member (33) and disengages power transmission to the input gear member (40) when the first ring gear member (33) is rotated while the first ring gear member (33) is being caused to rotate when the input gear member (40) has been rotated, wherein the sun gear member (31) and first ring gear member (33) each constitute individual input elements, so that the second ring gear member (34) is respectively driven by selectively rotating the sun gear member (31) and first ring gear member (33).

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Inventors:

SHINYA MASASHI (JP)
TAMURA TAKASHI (JP)

Application Number:

PCT/JP2010/051250

Publication Date:

August 12, 2010

Filing Date:

January 29, 2010

Export Citation:

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Assignee:

TAMRON KK (JP)
SHINYA MASASHI (JP)
TAMURA TAKASHI (JP)

International Classes:

F16H1/28; F16H1/36; F16H13/04; F16H37/06; F16H57/02; F16H57/028; F16H57/029; F16H57/03

Foreign References:

JPS6449739A	1989-02-27
JPH08210444A	1996-08-20
JP2004109392A	2004-04-08

Attorney, Agent or Firm:

SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)

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