Suzuki Motor Corporation

Kyohei Ikoma

Daisuke Hatano

Kenta Suzuki

A seat rail structure installed on a vehicle body of a motorcycle. In such a seat rail structure, each of two lateral members and a first coupling member configured to allow a seat to be placed thereon has a laminated structure made of a fiber reinforced resin, each lateral member includes a vertical wall and an upper flange, the first coupling member includes two upper surface contact portions in contact with the upper flanges of the two lateral members, respectively, and two side surface contact portion extending downward from outer edges of the two upper surface contact portions, respectively, each upper surface contact portion is fastened to the upper flange being in contact with the upper surface contact portion, and each side surface contact portion is fastened to the vertical wall being in contact with the side surface contact portion.

Motorcycle seat rail structure

The present invention relates to a seat rail structure for a motorcycle having a seat rail on a vehicle body. In this structure, the seat rail has a side member being a bent product of continuous fiber reinforced resin, the side member has: a side wall at an outer end in a width direction of a vehicle body; and an upper flange at an upper end of the side wall to protrude from the side wall inward in the width direction, the side wall has an upper fastening portion at an upper end section of a front end region, fastened to a main frame, the upper fastening portion has an upper corner edge portion straddling front edge and upper edge portions, the upper corner edge portion is arcuate, and a rear end of the upper corner edge portion is frontward relative to a front edge portion of the upper flange.

Seat rail structure for motorcycle

In a seat rail structure according to the present invention, a seat rail of a vehicle body of a motorcycle has a side wall positioned lateralward in a width direction of the vehicle body, and the side wall has a bulge portion formed at a front upper region positioned frontward in the vehicle body and upward in the vehicle body. The bulge portion bulges outward in the width direction of the vehicle body relative to a peripheral portion positioned at surroundings of the bulge portion, and the seat rail has a front flange positioned at an upper end of the side wall and protrudes inward in the width direction of the vehicle body from an upper end of the bulge portion.

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Hamamatsu, Japan

Kyohei Ikoma