| 摘要 |
PROBLEM TO BE SOLVED: To provide a rectangular outer frame of which the assembly is easy, and which is strong. SOLUTION: The rectangular outer frame 10 which covers the game machine main body 2 is constituted of right and left vertical frame rods 11a and 11b, and top and bottom lateral frame rods 20a and 20b. In this case, the right and left vertical frame rods 11a and 11b comprise an aluminum cast article (an aluminum die-cast), and a connecting rib 12 which protrudes inward is formed at the upper and lower ends. The top and bottom lateral frame rods 20a and 20b are bridged between the top and bottom connecting ribs 12 and 12, and of which both ends are respectively fixed to the connecting ribs 12 and 12. Then, the lateral frame rods 20a and 20b are connected through the connecting ribs 12 and 12 which are integrally formed on the vertical frame rods 11a and 11b by an aluminum cast article (an aluminum die-cast). Thus, a sufficient assembling strength can be kept.
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