| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas discharge device capable of further downsizing, and capable of synchronizing emission timing of a vortex ring in a gun barrel part.SOLUTION: This gas discharge device includes at least two air gun parts 51, 52 provided with an energizing means 523 for energizing a piston 520 to one side, at least two driving motors 530 for imparting a driving force against an energizing force of the energizing means 523, release mechanisms 522a, 532c for releasing the driving forces imparted to a piston rod 522 by the respective driving motors 530, a detecting means 72 for detecting the presence of the piston rod, and a control means 100 for stopping an operation of the driving motor 530 for driving the detected piston rod 522, when any of the piston rods is detected by the detecting means 72, and for arrangement-controlling the timing for releasing concurrently the piston rod by the release mechanisms 522a, 532c with all of the driving motors held stopped temporarily. |
