Patent ID: 8198559

Claim:
An illumination switch device comprising: a manipulation knob in which a light shielding portion is provided in a front outer surface of a body formed of a light transmitting material except for an illumination portion; a hollow slider, which is incorporated into the manipulation knob and is formed of a light shielding material; a casing, which vertically guides the slider; a switch element, which is operated by the vertical movement of the slider; and a light source, which irradiates light to a rear surface of the manipulation knob via an inner space of the slider, wherein a front end portion of the slider is disposed so as to protrude forward from the casing and the manipulation knob is snap-connected to the front end portion of the slider protruding from the casing, wherein the manipulation knob includes: a skirt portion, which protrudes backward from a peripheral edge portion of the body so as to surround the front end portion of the slider; a connection piece, which protrudes backward from a rear surface of the body more than the skirt portion so as to be inserted into the slider; and a locking hole, which is provided in the connection piece so as to be located on a lower side of the skirt portion, and wherein a locking claw is provided on an inner wall surface of the slider and is snap-connected to the locking hole.