Body frame for motorcycle

Details Body frame for motorcycle Body frame for motorcycle

1996-09-27

1998-12-08

Hurley, Kevin

Motor vehicles

Special wheel base

Having only two wheels

180311, B62K 1106

Patent

active

058457283

ABSTRACT:
A body frame for a motorcycle is disclosed wherein a head pipe is provided for pivotally supporting a front fork. A main pipe extends from the head pipe, the main pipe is curved to extend rearwardly and downwardly. A pivot unit is secured to the downwardly extending portion of the main pipe for pivotally supporting a rear swing arm thereon. The main pipe includes a transversely elongated cross section and extends in a vertical plane including a longitudinal axis of the motorcycle. The body frame includes a seat rail for supporting a seat, the seat rail is connected to a rear portion of the main pipe and includes a transversely elongated cross section extending in a vertical plane including the longitudinal axis of the motorcycle. Down tubes are provided for supporting a forward portion of an engine. The down tubes connected to the main pipe include a transversely elongate cross section and extend downwardly from the head pipe in a vertical plane including the longitudinal axis of the motorcycle.

REFERENCES:
patent: 4280582 (1981-07-01), Kouyama et al.
patent: 4427087 (1984-01-01), Inoue et al.
patent: 4618019 (1986-10-01), Ando et al.
patent: 4727953 (1988-03-01), Kudo et al.
patent: 4776422 (1988-10-01), Sakuma
patent: 5183130 (1993-02-01), Nakamura et al.
patent: 5480001 (1996-01-01), Hara

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