Patent ID: 7932474

Claim:
A switch comprising: a switch case that supports a switch board; a pusher member that is provided in the switch case, is operative to be pushed from a first position to a second position located closer to the switch board than the first position, and includes a spherical guide surface on a side opposite to the switch board and a through hole; an internal knob that is operated by a user and includes a plurality of legs supported by the guide surface; a light source that is provided on the switch board and illuminates the internal knob by projecting light into the internal knob through the through hole; and an annular external knob that is operated by the user and surrounds the internal knob, wherein, when the external knob is pushed toward the switch board, the guide surface allows sliding action of the plurality of legs to tilt both the external knob and the internal knob, wherein, when the internal knob is pushed toward the switch board while the internal knob and the external knob remain tilted, the plurality of legs are prohibited from performing sliding action, thereby causing the internal knob to linearly move toward the switch board along with the external knob, wherein the pusher member is pushed by the internal knob from the first position to the second position in response to the internal knob linearly moving toward the switch board along with the external knob, and wherein the switch board includes an external switch that is operated in response to the external knob linearly moving toward the switch board and an internal switch that is operated by way of the pusher member in response to the internal knob linearly moving toward the switch board.