초록 ▼

A gas-fired gun having a handgrip defining a chamber for receiving a gas-containing cartridge and a lever coupled to the handgrip at its lower end for pivotal movement between positions opening and closing the chamber. The lower end of the lever carries a seat on opposite sides of which are first an

A gas-fired gun having a handgrip defining a chamber for receiving a gas-containing cartridge and a lever coupled to the handgrip at its lower end for pivotal movement between positions opening and closing the chamber. The lower end of the lever carries a seat on opposite sides of which are first and second cam surfaces. The first cam surface cams the cartridge into an operative position in the chamber with its upper end in engagement with a cartridge piercing mechanism upon movement of the lever from the first to the second position. The seat enables the cartridge to back off the piercing mechanism when the lever is in the second position to improve the gas flow from the cartridge into the gas-fired gun. The second cam surface displaces the cartridge from the chamber upon movement of the lever from the second position toward its first position. A limit surface, forming part of the flat lower end of the handgrip, abuts a limit shoulder on the handgrip body to prevent movement of the lever in a direction away from the grip past its first position.

대표청구항 ▼

A gas-fired gun comprising: a gun frame having a barrel and a handgrip including a fixed body portion; means defining an elongated chamber in said handgrip body portion for receiving a gas-containing cartridge; means carried by the gun adjacent one end of said chamber for releasably retaining one en

A gas-fired gun comprising: a gun frame having a barrel and a handgrip including a fixed body portion; means defining an elongated chamber in said handgrip body portion for receiving a gas-containing cartridge; means carried by the gun adjacent one end of said chamber for releasably retaining one end of the gas cartridge within said chamber and including means for piercing said one end of the cartridge, a gas cartridge extraction assembly forming a part of said handgrip and including a lever coupled to said handgrip body portion for pivotal movement about an axis adjacent the opposite end of said chamber and movable between a position closing said chamber and a position opening said chamber enabling extraction of the gas cartridge from the chamber, said gas cartridge extraction assembly further including surface means at the opposite end of said chamber on said lever and movable therewith laterally outwardly from the chamber about said axis for engaging the opposite end of the gas cartridge in response to pivotal movement of said lever from its chamber closing position toward its chamber opening position to displace the cartridge outwardly of said chamber and enable release of the one cartridge end from said releasable retaining means, said surface means being located on the inboard side of an imaginary line extending between said pivotal axis and said piercing means when the lever is in said position closing the chamber, said lever moving away from said imaginary line in the outboard direction as the lever moves from the chamber closing to the chamber opening position, said chamber being open and unobstructed from said one end thereof to said surface means when the lever is in said chamber closing position whereby to define an area for the acceptance of a cartridge that extends from said one end of the chamber to said surface means.