Ntn Corporation

Takeru Ito

Tatsuo Kawase

Tatsuya Hayashi

Takeshi Maeda

A windmill includes a shaft, a blade, and a supporting member. The windmill is rotatable about a center axis of the shaft. The blade has a blade main body portion extending along an axial direction that is a direction of the center axis. When viewed in a cross sectional view orthogonal to the axial direction, the blade main body portion includes a front edge and a rear edge, the front edge being an end on a front side in a rotation direction of the windmill, the rear edge being an end on a rear side in the rotation direction. The supporting member extends along a radial direction orthogonal to the axis direction and passing through the center axis, so as to connect the shaft and the blade main body portion to each other.

Windmill and wind power generation apparatus

A vertical axis wind turbine () includes a vertical rotation shaft () and a plurality of vertical blades () arranged around the rotation shaft and attached to the rotation shaft through an arm (). Each of the blades () includes a blade main part () and blade-tip inclined parts () extending from upper and lower ends of the blade main part () toward the rotation shaft (). Each of the blade-tip inclined parts () has a smaller thickness than a thickness of the blade main part (). A wind power generating device () includes a vertical axis wind turbine () having the above configuration and a generator ().

Growing community of inventors

Kuwana, Japan

Takeru Ito