Yamaha Hatsudoki Kabushiki Kaisha

Kenichi Watanabe

Tatsuya Suzuki

Nobuo Hara

Kazuhiro Nishida

Tomohito Maeda

Yasuhiro Oomura

Yu Kitamura

Takafumi Nonaka

A straddle-type vehicle including left and right front wheels effectively prevents deterioration of a travel feeling caused by vibrations occurring in the left and right front wheels. The straddle-type vehicle includes a body frame, left and right front wheels, a link mechanism configured to connect the left and right front wheels with the body frame, a shock absorber configured to damp vibrations in the same phase occurring in the left and right front wheels, and a damper configured to damp vibrations in opposite phases occurring in the left and right front wheels. The damper is configured such that its damping force increases at least in a certain frequency range as the frequency of the vibrations in the opposite phases increases.

Straddle-type vehicle

A saddle riding type vehicle includes a support mechanism arranged to support a pair of wheels to be movable up and down relative to a vehicle body, a lock mechanism connectable to the support mechanism and arranged to limit up-and-down motion of the pair of wheels, various sensors arranged to detect vehicle states, and a controller arranged to control the lock mechanism based on results of detection by the various sensors. The controller controls the lean limitation to the up-and-down motion of the pair of wheels and its cancellation automatically. The rider need not carry out a special control for operating the lock mechanism. In addition, the lock mechanism is controlled according to the vehicle states, which allows the rider to travel lightly and comfortably.

Saddle riding type vehicle

Growing community of inventors

Shizuoka, Japan

Kenichi Watanabe