| 摘要 |
PROBLEM TO BE SOLVED: To relieve the frictional force generated between a game ball and a sprocket in a game ball moving device using the sprocket. SOLUTION: A put-out device 1 has the sprocket 2 for capturing a game ball in a tooth recess 6 and moving the game ball T by the rotation, and a free roller 7 for bringing a side surface 7a into contact with the game ball T captured in the tooth recess 6 is attached to the sprocket 2 with the rotating axis of the free roller parallel to the rotating axis of the sprocket 2. Accordingly, if the game ball T captured in the tooth recess 6 starts to rotate in the tooth recess 6 when the game ball moves in contact with an inner wall surface 3a of a housing 3 while the sprocket 2 is rotating, the free roller 7 with the side face 7a in contact with the game ball T is rotated, and therefore, the frictional force generated between the game ball T and the sprocket 2 (the inner surface of the tooth recess 6) can be relieved and the sprocket 2 can be smoothly rotated. COPYRIGHT: (C)2007,JPO&INPIT
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