| 摘要 |
PROBLEM TO BE SOLVED: To provide a push-button switch for alighting signals capable of assuring visibility of the push-button and reducing wrong operations of the push-button. SOLUTION: In a push-button switch for alighting signals so configured as to light an illumination part provided on the surface of the casing when the push-button on the casing is pressed by a preset quantity of displacement. The push-button switch is provided in the recessed portion provided on the surface of the casing. The periphery of the recessed portion has an irregular curve portion. COPYRIGHT: (C)2008,JPO&INPIT
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