| 摘要 |
PROBLEM TO BE SOLVED: To provide a means not interfering with opening and closing of a back mechanism set panel, and capable of constraining and holding a front frame in a desired opened position while reducing loads to the front frame and an outer frame in a pachinko game machine. SOLUTION: The front frame hold-open mechanism for the pachinko game machine is composed so a rotatively displaceable hold-open member for fixedly holding the front frame in the desired opened position to the outer frame can be provided between an upper edge part of the outer frame and an upper edge part of the front frame.
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