| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent a player from illegally using a small-diameter game ball, a large-diameter game ball and a stringed game ball, and to secure evidence of the illegal use of the stringed game ball. <P>SOLUTION: A rotor 88 has ball storage parts 73 for storing a game ball, and is rotatably supported between a disk cover 50 and a disk base 80. A drive part 90 rotates the rotor 88 such that each ball storage part 73 passes through a first rotation position where a game ball is received, a second rotation position where the small-diameter game ball is discharged, a third rotation position where a game ball is supplied to a ball shooting device 9, and a fourth rotation position where the large-diameter game ball is discharged. The disk base 80 has: a small-diameter ball discharge hole 83 having size to allow insertion of a game ball having a diameter not larger than a reference minimum diameter and blocks insertion of a game ball having a diameter larger than the reference minimum diameter; and an outflow hole 84 having size to allow insertion of a game ball having a diameter not larger than a reference maximum diameter larger than the reference minimum diameter and blocks insertion of a game ball having a diameter larger than the reference maximum diameter. A large ball discharge part 85 discharges the game ball stored in the ball storage part 73. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
