Yamaha Hatsudoki Kabushiki Kaisha

Michiya Hayashi

Makoto Kosugi

Masaichi Yamada

Toshimasa Nakagawa

Toshio Tanaka

Takayuki Yoshida

A speed change controller is provided on a saddle-ride type vehicle and is suited to manipulation by a foot. The speed change controller for saddle-ride type vehicles comprises a detection mechanism that detects operation by a driver for speed change, and a speed change mechanism that performs speed change on the basis of speed change operation detected by the detection mechanism. The detection mechanism provided by the invention comprises an operation part manipulated by a foot for speed change and including a moving part, which moves relative to the vehicle on the basis of manipulation by a foot, and a detection unit that detects that the moving part moves a predetermined amount or more.

Speed change controller for saddle-ride type vehicles

A rotor such as a brake disk for a vehicle has a spring holder that circumferentially extends around an axis of the disk. A coil spring extends around the axis along the spring holder. The spring is loaded onto the spring holder by its own resilience. The spring has a load rate that generates a tension that allows the spring to move circumferentially relative to the spring holder.

Growing community of inventors

Shizuoka, Japan

Michiya Hayashi