| 摘要 |
PROBLEM TO BE SOLVED: To provide an outer casing for a game machine, which conserves wood resources, saves resources, can be recyclably used and can deal with the problem that holding position of a shelf board or the like is different for every production maker by reducing its weight while using resin materials and setting its product strength at a degree sufficiently immune to the total load applied to the outer casing at its storage and transport time. SOLUTION: Each of upper surface board 14, left and right side surface boards 12 and 13 and back board 11 is composed of a resin board 20 composed of a pair of mutually confronted wall surface bodies 21 and 22 and a rib 23 connecting both the wall surface bodies 21 and 22. The rib 23 is located in a prescribed situation immune to the load from the upside to the resin board 20. Inside the respective left and right side surface boards 12 and 13, a lock part 36 is provided for holding a shelf board 16 at a desired position but in order to change the position of the lock part 36, when molding the resin board 20 forming the left and right side surface boards 12 and 13, a metal mold is used to exchange the metal die cavity of a fixed area portion E including a portion corresponding to the lock part 36.
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