Patent ID: 7387117

Claim:
A gas powered toy gun comprising: a gas supplying portion from which a gas leading passage extends; a valve for controlling the gas leading passage to be open and closed selectively; a slider provided to be movable along a barrel portion connected with a bullet holding chamber in which a sham bullet is put, and provided with a pressure receiving portion fixed to be positioned at a back of the barrel portion for moving backward in order to supply the bullet holding chamber with the sham bullet; a movable member having an inner space formed therein and provided to be movable in the slider so as to be put selectively in a first state wherein the inner space is coupled with the gas leading passage and in a second state wherein the inner space is removed from the gas leading passage; a gas passage controller provided to be movable in the inner space and operative to guide gas flowing through the gas leading passage to the bullet holding chamber through the inner space so that the sham bullet put in the bullet holding chamber is shot with gas pressure acting thereon and to guide further the gas flowing through the gas leading passage to the pressure receiving portion through the inner space so that the slider is moved backward with gas pressure acting on the pressure receiving portion in the first state when the valve is operative to control the gas leading passage to be open; and gas flow adjusting means provided in the inner space formed in the movable member for adjusting the amount of gas flowing through the inner space to the pressure receiving portion in response to pressure of gas led into the inner space through the gas leading passage by the gas passage controller, wherein the gas passage controller moves relative to the gas flow adjusting means to control gas flow between the gas leading passage and the gas flow adjusting means, wherein said gas flow adjusting means is operative to limit the amount of gas flowing through the inner space to the pressure receiving portion when the pressure of gas led into the inner space through the gas leading passage has a value not less than a predetermined value, wherein said gas flow adjusting means comprises: a fixed member provided in a part of the inner space through which the gas flows when flowing to the pressure receiving portion; and a gas flow limiting member provided to be selectively movable in the inner space relative to the fixed member and the pressure receiving portion, wherein said gas flow limiting member is forced by a force exerted by a resilient member to be put in a tendency of moving away from the pressure receiving portion and moved with a gas pressure acting thereon to move close to the pressure receiving portion against the force exerted by the resilient member so that the amount of gas flowing to the pressure receiving portion is limited by the gas flow limiting member and the fixed member when the pressure of gas led into the inner space has the value not less than the predetermined value.