Automatic gas powered gun
a gas-powered gun and automatic technology, applied in the direction of white arms/cold weapons, weapon components, weapons types, etc., can solve problems such as gun cracking, and achieve the effect of not reducing the efficiency of the gun
Inactive Publication Date: 2006-12-14
FX AIRGUNS AB
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Benefits of technology
[0004] It is therefore an object of the present invention to provide an automatic or semi-automatic gas powered gun, without reducing the efficiency of the gun.
[0006] The invention is based on the insight that the gas that has been used to discharge the bullet is only partly expanded, and thus does still contain a considerable amount of energy. It is this energy that typically is transformed into sound waves, to result in a crack of the gun. According to the invention, this energy is instead used to reload the gun. As the energy in the partly expanded gas is extracted after the bullet has been discharged, the efficiency of the gun is not reduced. However, the noise of the gun is reduced.
[0007] Preferably, the partly expanded gas is collected only after the bullet has left the gun, and as a consequence, the recoil from the reload will not affect the precision of the gun.
Problems solved by technology
It is this energy that typically is transformed into sound waves, to result in a crack of the gun.
Method used
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Embodiment Construction
[0018]FIG. 1 shows an air gun according to a first embodiment of the invention. The gun 1 is of the kind where a cartridge 2 of compressed air or other gas is fitted to the body 3 of the gun. Typically, the cartridge 2 is fitted in the back, and may be enclosed in the stock of the gun (not shown / see FIG. 3). The gun further comprises a barrel 4, and a feeder pin 5 slidably arranged in a housing 6 behind the barrel 4, biased in the forward direction by a biasing means, here a return spring 7. In a space between barrel and the feeder pin is fitted a magazine 8 for providing projectiles e.g. in the firm of diabolo bullets 9. The magazine can for example be of the kind disclosed in EP 341090. The feeder pin 5 is arranged to be slid back, thereby allowing a bullet 9 to be provided from the magazine 8, and then to be slid forward, thereby feeding the bullet 9a into a firing position in the barrel 4.
[0019] The gun further comprises an open-close valve 10 for allowing passage of compressed...
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A gas powered gun is disclosed for repeated discharge of projectiles. The gun includes a barrel adapted to receive a projectile from a magazine, a pressure chamber adapted to communicate with a compressed gas cartridge fitted to the gun, an open-close valve for exhausting compressed gas from said chamber to discharge a projectile in the barrel, and a hammer arranged to actuate the open-close valve. The gun further includes a chamber for collecting partly expanded compressed gas after the gas has been used to discharge the projectile, a piston arranged in a housing and being mechanically connected to the hammer, and a channel for directing the partly expanded gas into the housing, so that the gas will force said piston to move, thereby bringing the hammer to a ready-for-fire-position.
Description
FIELD OF THE INVENTION [0001] The present invention relates to a gas powered gun for repeated discharge of projectiles, comprising a barrel adapted to receive a projectile from a magazine, a pressure chamber adapted to communicate with a compressed gas cartridge fitted to the gun, an open-close valve for exhausting compressed gas from said chamber to discharge a projectile in the barrel, and a hammer arranged to actuate said open-close valve. More specifically, the invention relates to automatic reloading of such a gun, to enable repeated firing. BACKGROUND OF THE INVENTION [0002] In a conventional gas powered gun, the user manually reloads the gun after firing, by moving a handle backwards and forwards. This motion brings the hammer back to a loaded position, while at the same time brings a feeder pin back to allow for a new bullet to be inserted, and then forward, to feed this bullet into the barrel. In case of a gun provided with a magazine, the back-forward motion can be consecu...
Claims
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Login to View More IPC IPC(8): F41B11/02F41B11/72
CPCF41B11/723
Inventor AXELSSON, FREDRIK
Owner FX AIRGUNS AB