Motorcycle frame construction

Details Motorcycle frame construction Motorcycle frame construction

1992-11-20

1993-11-16

Focarino, Margaret A.

Motor vehicles

Special wheel base

Having only two wheels

180227, 180291, B62K 1104, B62M 704

Patent

active

052615049

ABSTRACT:
Two embodiments of motorcycles having improved frame constructions that are comprised of a head pipe and a pair of downwardly and rearwardly extending main frame members. The frame is further reinforced against loads from the front wheel by means of a center main frame member that is affixed to the head pipe at a point below the pair of main frame members and extends rearwardly therefrom at a different angle from the pair of main frame members but which is affixed to the pair of main frame members by a reinforcing cross member.

REFERENCES:
patent: 4427087 (1984-01-01), Inoue et al.
patent: 4660854 (1987-04-01), Suzuki et al.
patent: 4673053 (1987-06-01), Tanaka et al.
patent: 4781264 (1988-11-01), Matsuzaki et al.
patent: 4805716 (1989-02-01), Tsunoda et al.
patent: 5054571 (1991-10-01), Takasaka

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