| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing device of a case housing a control board of a game machine or the like and sealed, which shows an abnormal appearance visually and easily detected on the basis of breakage of the sealing device. SOLUTION: A board box is provided with a case body housing the control board of the game machine such as a pachinko machine, a cover body and a plurality of sealing structures for sealing the main body and the cover body. The sealing structure is provided with one or more pair of caps protrusively supported via a joining arm provided on the main body and the cover body and facing each other and a cylindrical and sealing body engaged-fixed inside the pair of the caps. The sealing body has a retaining piece engaged with retaining projections formed inside the caps. A fill room consists of a small room inside the sealing body and a cover body for closing an opening of the small room. Dispersive matter is enclosed inside the fill room. COPYRIGHT: (C)2009,JPO&INPIT
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