| 摘要 |
PROBLEM TO BE SOLVED: To provide a unit for presentations and a game machine provided therewith that can easily and flexibly adjust a projection direction of irradiation light by a projector.SOLUTION: A projection direction of irradiation light by a projector can be easily and flexibly adjusted through the two steps of an attachment of an attachment pedestal, and an attachment of an adjustment pedestal. The attachment pedestal 1121 and a ceiling board 1300a are supported by screws at four attachment positions. An allowance within a prescribed adjustment range is provided between the screw shaft outside diameter of the screws and the inner diameter of attachment holes, which enables a two-dimensional position adjustment. The attachment pedestal 1121 and the adjustment pedestal 1122 are, at three attachment positions, supported by springs and screws near the springs. The gaps between the attachment pedestal 1121 and the adjustment pedestal 1122 are adjusted by turning the respective screws, which enables a three-dimensional position adjustment. |
