| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotor division type single component urethane rubber ring allowing an easy replacement of urethane rubber alone when the urethane rubber stuck to a rotor part for feeding balls at a high-speed rotation is abraded in a rotor type pitching machine. SOLUTION: This division type rotor has a structure for separating the integration between a metal part and the urethane rubber of a rotor to allow the replacement of the urethane rubber alone, wherein the urethane rubber is defined to have a ring shape, and this rotor consists of a metal rotor 1 (a metal wheel), an intermediate plate ring (a spacer), the urethane rubber ring 2 and an urethane rubber ring presser 3. The urethane rubber may be formed of a plurality of shapes according to the material of a ball. The urethane rubber is molded by taking account of the hardness and the stability at the high speed rotation. COPYRIGHT: (C)2009,JPO&INPIT
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