BALL INVENTORY DETECTION DEVICE FOR BALL STORAGE TANK IN GAME ISLAND

摘要

PROBLEM TO BE SOLVED: To provide a ball inventory detection device for a ball storage tank in a game island with a simple structure capable of always accurately detecting and grasping a ball inventory inside a ball storage tank equipped in the game island. SOLUTION: The game island has a plurality of pachinko game machines provided side by side; a ball lifting device lifting a pachinko ball as polishing the pachinko ball; a supply trough supplying the pachinko ball discharged from the ball lifting device to the pachinko game machine; and the ball storage tank having a length storing a large number of pachinko balls. At least one ball storage tank is provided inside the game island. A first detection sensor counting the number of the pachinko balls supplied into the ball storage tank and a second detection sensor counting the number of the pachinko balls discharged from the ball storage tank are provided in arbitrary positions. COPYRIGHT: (C)2003,JPO