| 摘要 |
<p>PURPOSE:To permit stabilized feeding and improve quick firing property, by branching the flow of gas into two directions and the flow of gas from one direction is collided against a projectile through an air nozzle. CONSTITUTION:The pressure of gas in a gas bomb 1 is branched by a branching unit 11 and is applied on a full-automatic unit 3 and a magazine 4. When a projectile is not fed, an O-ring is not sealed and the gas is released continuously from a sub chamber 7 and an air nozzle 8. The flow rate of air in the branching unit 11 is determined by adjusting the diameter of the air nozzle 8. The diameter of the nozzle of the sub chamber 7 is smaller than the same of the air nozzle 8 and, therefore, a vacuum is generated around a dropping hole 9 whereby a BB(ball billet) projectile 5 around the dropping hole 9 is blown off from the air nozzle 8 by the pressure of gas and the projectile is fed. The magazine 4 is pressurized as the extension of a chamber 10 whereby the residual pressure of previous projectile firing remains in the magazine 4 and a pressurizing time for next firing projectile after feeding may be shortened thereby realizing quick firing property.</p> |
