Patent ID: 8795075

Claim:
An entertainment button device comprising: an entertainment button; and a button-up-and-down mechanism configured to move the entertainment button up and down from a normal operation position to a protruding position in which the entertainment button protrudes upward from the normal operation position, the button-up-and-down mechanism including: a shaft member extending in a moving direction of the entertainment button; a rotating mechanism configured to rotate the shaft member; an engagement part configured to move up and down together with the entertainment button; and a spiral guide part formed in a spiral manner on an outer periphery of the shaft member, the engagement part engaging with the spiral guide part, wherein: when the rotating mechanism rotates the shaft member in a specific direction, the engagement part moves to an upper end of the shaft member, engaging with the spiral guide part, so that the entertainment button moves to the protruding position; and when the rotating mechanism rotates the shaft member in an opposite direction from the specific direction, the engagement part moves to a lower end of the shaft member, engaging with the spiral guide part, so that the entertainment button moves to the normal operation position, the entertainment button further comprising: a push operation detector which uses hardware to detect that the button is pushed down from a normal position, and uses said hardware to also detect that the entertainment button is pushed down from the protruding position.