POWER-TRANSMISSION DEVICE

Title:

POWER-TRANSMISSION DEVICE

Document Type and Number:

WIPO Patent Application WO/2012/147868

Kind Code:

A1

Abstract:

[Problem] To provide a power-transmission device whereby power-transmission efficiency is increased, gear-shifting time lag is decreased, and manufacturing costs are reduced by making a seal member, which is attached so as to surround a supply-port opening, easily mountable to the outer surface of an input shaft. [Solution] A configuration is used in which a hydraulic oil is selectively supplied to a hydraulic chamber (either S1 or S2) in order to press together drive-side clutch plates and driven-side clutch plates in a desired gear-stage clutch means, thereby allowing power transmission at a prescribed gear ratio. Annular seal members (12 and 13) are attached so as to surround the openings of supply ports (P1 and P2) at the outer surface of an input shaft (6), recessed portions (6c) having flat bottoms (a) are formed in regions containing the openings of the supply ports at the outer surface of the input shaft (6), and the seal members (12 and 13) are made attachable along said recessed portions (6c).

Inventors:

ASATSUKE SHOUJI (JP)
NAGATA TAKUMI (JP)
ISHIMURA JUN (JP)
HASHIMOTO SHUJI (JP)
HASEGAWA KENICHI (JP)

Application Number:

PCT/JP2012/061254

Publication Date:

November 01, 2012

Filing Date:

April 26, 2012

Export Citation:

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Assignee:

FCC KK (JP)
ARAI SEISAKUSHO CO LTD (JP)
KANETA KOGYO CO LTD (JP)
ASATSUKE SHOUJI (JP)
NAGATA TAKUMI (JP)
ISHIMURA JUN (JP)
HASHIMOTO SHUJI (JP)
HASEGAWA KENICHI (JP)

International Classes:

F16D25/12; F16D25/0638; F16D25/10

Domestic Patent References:

WO2011016533A1

2011-02-10

Foreign References:

JPH0861396A

1996-03-08

Other References: