Patent ID: 8707942
Filing Date: 2014-04-29
Classification: A63B,F41B

Abstract:
1. A rotary wheel for a ball pitching machine, comprising: a wheel body including first and second surfaces opposite along an axis and a shaft hole provided in the wheel body and adapted to be extended through by a shaft of a motor of the ball pitching machine, with the rotary wheel further including an annular spring portion formed between the shaft hole and an outer periphery of the wheel body in a radial direction perpendicular to the axis, with the spring portion including a first bending portion protruding outwardly from the first surface and a second bending portion protruding outwardly from the second surface of the wheel body, with each of the first and second bending portions capable of being compressed or stretched in the radial direction, and a resilient member engaged on the outer periphery of the wheel body.