| 摘要 |
The invention provides a game machine enabling a self-running body to smoothly run even in a corner section by using a plurality measurement lines provided at a constant pitch with reference to the inner circumference of a round track. The game machine (2) includes a game machine main body (10) having a plurality of measurement lines (36) arranged at a constant pitch (PTm) in the longitudinal direction of a round track (35) with reference to the inner circumference of the round track (35), and a self-running body (30) capable of self-running on the round track (35), wherein the self-running body (30) is provided with a measurement line detecting device (52) which has a plurality of detecting elements (60) arranged in the longitudinal direction of the self-running body at a constant pitch (PTms) and respectively capable of detecting the measurement lines (36), and controls its running on the round track (35) based on the results of detection. The pitch PTm of the measurement lines (36) on the inner circumference of the round track (35) is set to be integral multiples of the pitch PTms of the detecting elements (60), and the product of the number of detecting elements (60) and the pitch PTms of the detecting elements (60) is set to be larger than the maximum pitch PTout of the measurement lines (36) on the outer circumference of the round track (35).
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