| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine which prevents the de-skilling of the game from occurring by imparting unexpectedness, non-predictability and variations to an electric role object device, and can suppress and prevent the loss of a social role such as the provision of a public amusement from occurring. SOLUTION: A start winning port device 49 which becomes the trigger for a special pattern display is constituted of an element 57 to be won in which a game ball P enters, a pair of retractable right and left opening/closing valves 58 which increases the winning probability of the game ball P by projecting upward from the element 57 to be won, a solenoid which makes the pair of opening/closing valves 58 appear/disappear, and a start winning ball sensing sensor which senses the winning entry of the game ball P into the element 57. Each opening/closing valve 58 is constituted of a first guiding piece 65 which is fixed on a supporting plate, a second guiding piece 66 which is supported to the upper section of the first guiding piece 65 through a pin, and can rotate to the outside in the lateral direction, and a torsion spring 67 which rotate-urges the second guiding piece 66 to the outside in the lateral direction when the opening/closing valves 58 project. COPYRIGHT: (C)2006,JPO&NCIPI
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