Motorcycle engine and transmission mounting system

Details Motorcycle engine and transmission mounting system Motorcycle engine and transmission mounting system

1999-07-30

2001-04-10

Johnson, Brian L. (Department: 3618)

Motor vehicles

Special wheel base

Having only two wheels

C180S299000, C267S281000

Reexamination Certificate

active

06213240

ABSTRACT:

FIELD OF THE INVENTION
The invention relates to mounting systems for motorcycle engine and transmission assemblies.
BACKGROUND
U.S. Pat. No. 4,776,423 discloses an engine and transmission assembly mounting system incorporating a plurality of tie rods, each of which permit substantially uniplanar vibration. The system also includes a resilient mounting point on the frame where the engine and transmission assembly is joined to the frame and the swing arm.
SUMMARY
The present invention provides an improvement on the mounting system disclosed in U.S. Pat. No. 4,776,423. The invention provides a motorcycle including a frame, an engine and transmission assembly, a swingarm mounted to the engine and transmission assembly at a pivot point, a tie link interconnecting the engine and transmission assembly with the frame, a front resilient mount interconnecting the engine with the frame, and a rear resilient mount interconnecting the transmission with the frame. The rear resilient mount is positioned above the pivot point where the swing arm is mounted to the engine and transmission assembly.
Other features and advantages of the invention will become apparent to those skilled in the art upon review of the following detailed description, claims, and drawings.


REFERENCES:
patent: 4066142 (1978-01-01), Hopper
patent: 4237996 (1980-12-01), Matsuda et al.
patent: 4323135 (1982-04-01), Tominaga et al.
patent: 4421195 (1983-12-01), Aiba
patent: 4487285 (1984-12-01), Tomita et al.
patent: 4776423 (1988-10-01), Buell
patent: 5390758 (1995-02-01), Hunter et al.
patent: 5639075 (1997-06-01), Tyree
patent: 5829730 (1998-11-01), Ott
patent: 5918695 (1999-07-01), Matsuura et al.
patent: 2075444 (1981-11-01), None

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