| 摘要 |
PURPOSE:To obtain a powerful shooting echo by simultaneously injecting only smoke without large percussion sound at the time of shooting a bullet by providing a small hole having a function for injecting or sucking the smoke. CONSTITUTION:A small hole B is formed at a part of an inner barrel A, and a periphery of the hole is sealed by a smoke storage tank D adhered with an external injection port C. First, smoke substance of smoke screen, etc., is ignited and injected from the port C. The tank D is fully filled with concentrated smoke, which is fed from the hole B into the barrel A. When a bullet is shot, the smoke in the barrel A is simultaneously injected by pressure of the air, the concentrated smoke is sucked by the hole B by the flow of the air to become the state for waiting next shooting of a bullet. It can be shot until the smoke in the tank D becomes thin while repeating such a state. A position of the hole B formed at the barrel A is preferably nearer to a muzzle since the pressure of the air is continued, but automatically decided from the relationship to designing. |
