| 摘要 |
PROBLEM TO BE SOLVED: To provide a game machine with a button lock device which enables the accurate locking of an operation button both at the forward and backward positions and moreover, the automatic depression of it down to the backward position from the forward position.SOLUTION: The button lock device 44 has a locking member 60 which is freely turnably supported on a base member 41 to its forward lock position of getting engaged with a performance button 42 at the forward position to lock it, to its backward lock position of getting engaged with the performance button 42 at the backward position to lock it and to its unlock position and a turning drive mechanism 70 which can drive the locking member 60 to turn over to the forward lock position, to the backward lock position and to the unlock position. |
