| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine for emitting a sound of a high tone quality toward a head part of a game player without reducing rigidity of a window frame. SOLUTION: A vibrating plate 67 is arranged in front of a glass window 70, and air pressure acts on the vibrating plate 67 via an acoustic space 71 from an acoustic passage 73 when driving a loudspeaker 76, and the sound is emitted on the basis of vibration of the vibrating plate 67. This constitution emits the sound toward the head part of the game player by arranging the vibrating plate 67 near the head part in a seating state of the game player. Clearness of the sound is improved by eliminating a sound insulating object from the front of the vibrating plate 67. Thus, reduction in the rigidity of the window frame 60 can be prevented by eliminating the necessity for forming a through-hole-shaped sound emitting hole in the window frame 60. Since the vibrating plate 67 having a large diameter can be used by reducing spatial restriction more than when arranging the loudspeaker on a front door, the sound of the high tone quality can be generally emitted toward the head part of the game player without reducing the rigidity of the window frame 60. COPYRIGHT: (C)2004,JPO
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