| 摘要 |
PROBLEM TO BE SOLVED: To improve the efficiency of assembly and disassembly work of a plurality of component parts forming a decoration structure for a game machine. SOLUTION: The decoration structure is a center accessory 30 made by stacking a plurality of component parts 31 to 36 in the direction vertical to the surface of a game board 26. Boss portions 36a extending toward an inner side component parts 31 located in the innermost side are provided at a front side component part 36 located in the front side of the stacking direction from among component parts 31 to 36, and insertion holes 31h, 32h, 34h and 35h into which the boss portions 36a are inserted are formed in intermediate component parts 32 to 35 except the interior side component part 31 and the front side component part 36 and the inner side component part 31. By assembling retaining rings 37 into groove portions M formed at the tips of the boss portions 36a, the inner side component part 31 and the intermediate component parts 32 to 35 are assembled in a manner that pinches them by the front side component part 36 and the retaining rings 37. COPYRIGHT: (C)2006,JPO&NCIPI
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