OPERATING APPARATUS OF GAME MACHINE

PURPOSE: To enjoy a game with a site presence feeling by providing an operating device for a game machine with an air chamber whose volume is changed by receiving a striking operation, an air pressure transmitting tube communicating with the air chamber, and a pressure sensor by which the air pressure inside the air pressure transmitting tube is converted into an electric signal. CONSTITUTION: When a push button 21 is struck by a player from the above of the buttom cover 33, the push button is instantaneously moved downward to move down a piston 25, so that the volume of the cylinder chamber is instantaneously reduce to increase the pressure; however, since an air vent hole 30 of a small diameter is formed in the bottom wall of the cylinder chamber, the pressure rise is restricted. The air vent hole 30 functions as an orifice that restricts the movement as the downward moving velocity of the piston 25 is increased, and the pressure produced in the cylinder chamber varies in accordance with the strength of the striking force. The pressure is detected by a pressure sensor C through an air tube 28 and is converted into voltage, so that the strength of the striking force is detected so that it enters any of four stages including 0. Thus, the strength of the striking force can be detected, and game with a site presence feeling can be enjoyed.