| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine having a board case capable of preventing easy release of the joining of sealing sections of a base body and a cover body. SOLUTION: In this game machine, sealing states leaving traces of unsealing when unsealing the cover member, are formed on both a base-side welding portion and a cover-side welding portion by dissolving welding projections 274 and 275 by a predetermined welding device and welding a base-side welding surface 261a and a cover-side welding surface 271a. In the sealed state, projecting strips 263 and 263 projectingly formed on a non-welded surface 261b disposed at the peripheral section of the base-side welding surface 261a enter into recessed strip grooves 273a and 273a recessedly formed on a non-welded surface 261b disposed at the peripheral section of the cover-side welding surface 271a to prevent easy insertion of a cutting blade such as a cutter between the welding surfaces so as to make it hard to separate the welding portions and fraudulently unseal them. COPYRIGHT: (C)2011,JPO&INPIT
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