| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a pattern display device of a game machine capable of complexly varying patterns drawn on a spherical body by means of a simple structure. <P>SOLUTION: The pattern display device of a game machine has a spherical body 1, on the surface of which many patterns are drawn and a rolling mechanism rolling the spherical body 1. The rolling mechanism , a plurality of permanent magnets 2 embedded beneath a circumference 5 encircling the surface of the spherical body and a plurality of electromagnets 3 arranged close to the surface of the spherical body 1 correspondingly to the circumference 5. The electromagnets 3 synchronously excited attract the permanent magnets 2 and roll the spherical body 1. The permanent magnets 2 are arranged at a required interval beneath two or three circumferences where two planes intersecting each other through the center of the spherical body 1 and the electromagnets 3 are arranged at an interval smaller than that of the permanent magnets 2 correspondingly to the two or three circumferences. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
