| 摘要 |
PROBLEM TO BE SOLVED: To mutually accommodate token supply devices with tokens while taking account of the amount of tokens in a token supply device supplying the tokens. SOLUTION: Two token supply devices 4a and 4b are so formed that tokens to be supplied to main lifts 32 are stored in upper tanks 34 and lower tanks 28, tokens lifted by the main lifts 32 are stored in supply tanks 44, and tokens of token use machines 2 and 3 of a game island 1 are supplied by a conveyer 46. An island crossing conveyer 22 is disposed between the token supply devices 4a and 4b. Starting conditions of a conveyance between the supply devices are so set that the main lift 32 of one token supply device 4a has a trouble and the storage amount of the supply tank 44 of the supply device 4a is less than a first amount. Subject to the starting conditions, a control part 68 actuates the island crossing conveyer 22 to convey tokens from the token supply device 4b to the token supply device 4a. The control part 68 adds the storage amounts of the tanks 28, 34 and 44 of the token supply device 4b for the starting conditions of the token conveyance. COPYRIGHT: (C)2008,JPO&INPIT
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