Patent ID: 8835784

Claim:
A push button structure comprising: a plurality of buttons rotating about respective rotation centers, each button having a button body, a base section extending from a first end of the button body, and a leg extending from a second end opposite the first end; a panel having a plurality of openings for exposing the respective buttons, and a plurality of support sections each of which is provided at a position adjacent to the corresponding opening and supports the corresponding button; a plurality of switches to be pressed down by the respective buttons; and a circuit board in which the plurality of switches are mounted, wherein the circuit board is provided slanted with respect to the panel in such manner as to reduce or eliminate, at a contact point between one of the legs and a corresponding switch, an angle between a direction tangential to a rotational path of the one of the legs and a stroke direction of the corresponding switch compared to a case in which the circuit board is provided parallel with respect to the panel, and wherein the leg of the button located in the shorter position between the panel and the circuit board is formed shorter than the leg of the button located in the longer position between the panel and the circuit board.