Honda Giken Kogyo Kabushiki Kaisha

Honda Motor Co., Ltd.

Kinuo Hiramatsu

Yoshiyuki Kurayoshi

Takashi Kudo

Kazuo Honda

Yoshiaki Horii

Shuhei Nakamoto

To concentrate mass, to lower the center of gravity, to efficiently and optimally arrange an intake part for making a compact vehicle body. A cylinder inclined to the rear is arranged under a fuel tank and a body of an intake box is housed between a radiator arranged in front of the cylinder and the cylinder. An upper part of the body of the intake box is fixed to a body frame at the bottom of the fuel tank and air taken in is supplied to an intake port through an intake funnel and a throttle body respectively built-in. A lid of an intake duct can be extractably inserted into a window hole provided to the front of the body, a duct part integrated with the lid is arranged over the radiator, and an air intake guide port takes a flow of air in front of the radiator.

Motorcycle

An air intake structure for a motorcycle includes a pair of hollow laterally spaced frames extending from a headpipe to a rear portion of the motorcycle, a hollow cross member connecting the frames together at an intermediate portion thereof, wherein the hollow interior of the cross member communicates with the hollow interiors of the frames. Intake openings are provided at a front portion of the frames for feeding air into the frames, while an exhaust opening is formed on the bottom of the cross member for exhausting air downward to the engine air intakes. A fuel tank cover is provided to cover a flexible fuel tank disposed between the laterally spaced hollow frames. The fuel tank cover includes a hollow fairing stay formed integrally therewith for supporting a motorcycle fairing, wherein the hollow fairing stay forms an air duct for directing air from an air inlet in the fairing to the intake openings of the frame.

Air duct device for a motorcycle

For at least a portion of a body frame, a pipe member is used, which includes therein a longitudinal partition wall for defining passages. The pipe member is provided with an inlet and an outlet to be in communication with the passages. A plurality of passages defined in the pipe member are used for various purposes including cable insertion passages, engine breeder passages or air feeding passages.

Body frames

A frame material for a motor vehicle comprising a structure having an elongated hollow body of a rectangular cross section and a honeycomb member having a multiplicity of independent chambers and arranged in the hollow body such that central axes of the chambers are directed substantially perpendicularly to longer sides of the rectangular cross section of the hollow body. A frame construction for use in a motor vehicle includes the frame material as a main frame interconnecting a head pipe and a rear fork pivot rectilinearly in side elevation.

Growing community of inventors

Saitama, Japan

Kinuo Hiramatsu