| 摘要 |
PURPOSE: To enable increase in the number of patterns per unit length of a pattern display belt by forming an endless pattern display belt in such a manner that only one of both end parts of a belt body is twisted once as a whole after turned inside out to be moved in circulation. CONSTITUTION: Three pattern display belts 5 which are so arranged to display patterns in variation are mounted side by side in parallel in a case body set behind a rectangular frame-shaped window frame fitted on a game board. Here, the pattern display belts 5 are each formed in an endless Mobius's belt by joining both ends of a belt body with guide rollers 8a and 8a in such a manner that one only of both ends of the belt body is twisted once as a whole after turned inside out. Then, a plurality of patterns 5a are arranged on both sides of each of the belts 5 at an equal interval along the length of the belt 5. Thus, when the belts are driven in circulation by a step motor 10 through a drive roller 6, the patterns 5a both on the surface and rear sides are displayed sequentially. |
