| 摘要 |
PROBLEM TO BE SOLVED: To prevent a glass door frame from sagging when opened. SOLUTION: In this sagging preventive device 1, a supporting arm 7 pivotally fixed at a base end 7a so as to be rotatable on the horizontal plane, is disposed at a back face of a front frame 2 formed in an openable/closable manner in a pachinko machine, and a slider 8 is disposed to be freely reciprocated in the axial direction of the arm 7. An open side upper end 3b1 of the glass door frame formed in an openable/closable manner at the back face of the front frame 2 is suspension-supported by a pin 9 hanging from the slider 8.
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