| 摘要 |
PROBLEM TO BE SOLVED: To achieve both weight reduction and strengthening of a casing of a slot machine. SOLUTION: A box body 2 is formed in the shape of a vertically long box whose front is open and which has the depth from the front to the rear by combining a left structure 7, a right structure 8, a back structure 9, a top structure 10 and a bottom structure 11 with one another. A front frame 3 is formed in the shape of a vertically long rectangular frame surrounding a through hole which is opened in the front/rear direction by connecting an angled tube-shaped left structure 12, an angled tube-shaped right structure 13, an angled tube-shaped upper structure 14 and an angled tube-shaped lower structure 14 by the welding to one another. The rear edge of the front frame 3 is fit into the outside of the front edge from the front of the box body 2, and a bolt 16 is fastened into a bolt connection hole 18 in the front frame 3 from the opening side of the box body 2 via a bolt insertion hole 17. COPYRIGHT: (C)2007,JPO&INPIT
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