| 摘要 |
A seesaw type switch is provided having a light permeating indicator capable of being illuminated, and at the same time preventing ingress of dust. The switch includes a switch knob supported on left-to-right walls on both sides of a cylindrical knob fixture for oscillating operation, and a boss having a curved surface concentric with the center of the support on the side of an operation lever of the switch knob and existing over a light permeating indicator zone. Fore-to-aft facing sections facing contiguously with the curved surface on both sides before and behind the support center are provided on fore-to-aft walls of the knob fixture. Left-to-right curved surfaces facing contiguously along both sides of the curved surface of the left-to-right facing boss are provided on the left-to-right walls of the knob fixture. The light permeating indicator zone of the boss is formed by using a light permeating material.
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