| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine capable of supporting a rack gear for associating a movable object, stably while retaining a space around the rack gear.SOLUTION: A performance unit 300 comprises: rack gears 312L and 312R for moving between an initial position and a movement position in response to the actions of pinion gears 311L and 311R for transmitting the driving forces of performance motors 310L and 310R; and movable objects 313L and 313R for operating in associations with the rack gears 312L and 312R. The performance unit 300 is equipped with pluralities of support pieces 350 and 351 and support protrusions 315a to 315c for supporting the tack gears 312L and 312R from the lower sides. These support pieces 350 and 351 and support protrusions 315a to 315c are arranged to support by any of themselves the rack gears 312L and 312R no matter where the rack gears 312L and 312R might be at any position between the initial position and the movement position. |
