| 摘要 |
PROBLEM TO BE SOLVED: To provide a rotary switch that has a rotary knob with a lower part of the rotary knob, corresponding to the collision criteria of the head. SOLUTION: A rotary switch 1 is provided with breakages 5, 6 attached to a rotary knob 2 or a lower part 3 of the rotary knob. In this way, when a large force is applied to the rotary switch 1, crushes occur in the breakage 5, 6 and the rotary knob 2 moves to the lower part 3 of the rotary knob.
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