Title:
MOTORCYCLE
Document Type and Number:
WIPO Patent Application WO/2003/091059
Kind Code:
A1
Abstract:
The bank angle of a motorcycle is prevented from being reduced during cornering and damage to the AMT mechanism is reduced even when the vehicle falls. A motorcycle (1) comprises a cylinder block (47) of an engine, a crankcase (49) located under the cylinder block (47), a transmission (55) having a multi-shift mechanism that is located behind of the crankcase (49) and comprises a speed change gear with plural stages, a clutch for engaging/disengaging transmission of rotation when the speed change gear of the transmission (55) is switched, and an AMT mechanism (63) for automatically conducting clutch operation and switching of the speed change gear of the transmission (55). Because the AMT mechanism (63) is located behind the cylinder block (47) and above the transmission (55), the bank angle during cornering is prevented from being reduced and serious damage to the AMT mechanism when the motorcycle falls can be reduced.
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Inventors:
KOSUGI MAKOTO (JP)
ZENNO TORU (JP)
YAMADA MASAICHI (JP)
ZENNO TORU (JP)
YAMADA MASAICHI (JP)
Application Number:
PCT/JP2003/005365
Publication Date:
November 06, 2003
Filing Date:
April 25, 2003
Export Citation:
Assignee:
YAMAHA MOTOR CO LTD (JP)
KOSUGI MAKOTO (JP)
ZENNO TORU (JP)
YAMADA MASAICHI (JP)
KOSUGI MAKOTO (JP)
ZENNO TORU (JP)
YAMADA MASAICHI (JP)
International Classes:
B60K20/00; B62J27/00; B62K11/04; B62M11/04; F16H61/28; (IPC1-7): B60K20/00; B62M11/04; F16H61/28
Foreign References:
| JPH1159551A | 1999-03-02 | |||
| JP2002067741A | 2002-03-08 | |||
| JPS6181042U | 1986-05-29 | |||
| US6357545B1 | 2002-03-19 | |||
| JP2001124203A | 2001-05-11 | |||
| US20020023795A1 | 2002-02-28 |
Other References:
See also references of EP 1502801A4
Attorney, Agent or Firm:
Miyoshi, Hidekazu (2-8 Toranomon 1-chome, Minato-k, Tokyo 01, JP)
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