| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a game machine that prevents a situation where no sound is output from a sound output device depending on a rotation position of a rotary switch. <P>SOLUTION: A shaft member 98 constituting a rotary switch 97 is covered with a volume control knob 91. The volume control knob 91 projects from an opening part 76b formed in a step part 76 of a cover 75. On the peripheral face of the volume control knob 91, a plurality of projection parts 92 each having a curved surface are formed. On the periphery of the opening part 76b, a biasing member 77 is formed. A press part 77d formed at a free end of the biasing member 77 presses the projection part 92. When the volume control knob 91 is rotated, the press part 77 gets over each projection part 92 without stagnating at a top part of each projection part 92, and slips down into a recess 92b formed between the projection parts. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
