| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas gun having a structure of a discharge valve that is particularly adapted to pressure of carbon dioxide gas, in the gas gun using carbon dioxide gas as power source of the gas gun.SOLUTION: While a gas path is closed as an O-ring mounted in an annular groove formed in a head part of a discharge valve comes in close contact with a seating part of a valve seating member due to elastic force of a valve spring provided in an inner cavity of a valve sleeve, the gas path is closed while an annular protrusion formed between an annular groove and a neck part of the discharge valve is fitted in a step inner peripheral part formed between the seating part of the valve seating member and a gas hole when the discharge valve is moved in a direction of the valve seating member as a back end of the discharge valve is hit with a hammer or a striker, and when a throttle part of the discharge valve is moved to an inner periphery of the gas hole, compressed gas flows through the gas passage through a clearance produced between the inner periphery of the gas hole of the valve sleeve and the throttle part of the discharge valve. |
