| 摘要 |
An entertainment button device includes: an entertainment button that a player can push; and a button-up-and-down mechanism configured to move the entertainment button up and down from a predetermined 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 includes: a bias member configured to bias the entertainment button in a moving-up direction; 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 on an outer periphery of the shaft member in a spiral manner, wherein the engagement part engages with the spiral guide part. |
