| 摘要 |
An illumination structure of a dial knob of a multi-switch is provided to prevent a light source from directly exposing between the dial knob and a body plate by doubly cutting off lights. An illumination structure of a dial knob(22) of a multi-switch(20) has an illumination guide hole(40) having a light emitting unit(41), an exposure unit(43), and a cutoff plate. The light emitting unit, formed at one part of the illumination guide hole, receives light from a light source(11), has a settling groove at a lower end of which a part is concave. The exposure unit, formed at the other part of the illumination guide hole, emits light transferred from the light emitting unit. The cutoff plate prevents light from coming through to the outside. The exposure unit is separated from an illuminating center shaft of the light source.
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