Honda Giken Kogyo Kabushiki Kaisha

Kouji Kuroda

Tetsuro Hamada

Kentaro Kato

Toshimitsu Takaishi

Katsumi Fujimoto

Kazuhito Ito

Kazuhiro Nakano

Yoshikazu Konishi

Kazuhito Itoh

Hideaki Fukui

A motor vehicle transmission system, for use on a motorcycle, for example, includes a sensor for detecting a direction in which a shift pedal is operated for an upshift or a downshift, a torque direction sensor for detecting a direction in which the torque is transmitted between an engine and a drive wheel, and an engine output power control assembly responsive to output signals from the sensors for temporarily increasing or reducing the output power of the engine, so that a transmission mechanism can be shifted without disengagement of a clutch.

Motor vehicle transmission system

A spline connection which comprises a spline boss having inward spline teeth; and a spline shaft engaged slidably with the spline boss and having outward spline teeth is disclosed. A header passage for a lubricant is formed along a core of the spline shaft and oil passages are further formed in the spline shaft in such a manner as to pierce therethrough radially from the header passage. At least one of the outward spline teeth of the spline shaft is provided at the top thereof with a groove crossing transversely the outer spline tooth so as to have the open end of the oil passage disposed in the groove.

Spline connection

Growing community of inventors

Kawagoe, Japan

Kouji Kuroda