| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine enabled to elevate a movable body of a performance accessory device smoothly up and down even if it cannot support the movable body near the center of gravity.SOLUTION: A performance accessory device 1 comprises: a movable body 10; a lift mechanism 20 connected to one side face side of the movable body 10 for moving the movable body 10 in vertical directions; a first guide part 30 arranged at a position transversely spaced from a perpendicular L extending through the center of gravity of the movable body 10 for supporting the movable body 10 vertically movably and for regulating the transverse movements of the movable body 10; and a second guide part 41 arranged on the opposite side of the first guide part across the perpendicular L for regulating the transverse movement of the movable body 10.SELECTED DRAWING: Figure 4 |
