In the slot machine 1, it is provided the hinge construction for rotatably supporting the frame plate 63 of the frame 6 against the door 3, and the hinge construction is basically constructed from: the lower bracket 82 arranged at the lower position in one side of an opening 80 which is formed in the door 3 corresponding to the frame 6; the support hole 83 formed in the ceiling plate 81 positioned at the upper side of the door 3 and the support hole 84 formed in the lower bracket 82; and the support shaft 64 that the upper end thereof inserted in the through hole 633 of the upper support plate 634 is rotatably supported in the support hole 83 of the ceiling plate 81 and the lower end thereof inserted in the through hole 635 of the lower support plate 636 is rotatably supported in the support hole 84 of the lower bracket 82.