| 摘要 |
<p>PROBLEM TO BE SOLVED: To integrate an essential mechanism within a toy gas blow-back type air gun and to improve a gas flowing efficiency. SOLUTION: The gas blow-back type air gun comprises a magazine case 2 containing a compressed gas and a bullet chamber 60 and a valve disc 42 for opening or closing a supply of the gas into a cylindrical hole 4 by an impact valve 41 interlocked with an operation of a trigger 808 in a gun body. Thus, a nozzle piece 11 is moved forward to close a gas channel, released from a retracting piston 25. Meanwhile, after the bullet is shot, a magnet 17 provided at a rear end is sucked to the piston 25 by forward movement of the piston 25 operating after the bullet is shot to move backward the piece 11 to open the gas channel.</p> |
