US Patent 7341261 Skate

A skate includes a shoe body and a skating device, wherein the sole of the shoe body comprises a front part, a middle bow part and a rear part. The skating device is mounted only under the middle bow part. Therefore, the toe of the front part and the heel of the rear part can respectively contact with the ground easily. When the toe of the front part contacts with the ground, the angle A between the plane of the sole and the ground is less than 45°. When the heel of the rear part contacts with the ground, the angle B between the plane of the sole and the ground is less than 45°.