EP2151660A1 - Air gun with a blowback mechanism - Google Patents
Air gun with a blowback mechanism Download PDFInfo
- Publication number
- EP2151660A1 EP2151660A1 EP08014231A EP08014231A EP2151660A1 EP 2151660 A1 EP2151660 A1 EP 2151660A1 EP 08014231 A EP08014231 A EP 08014231A EP 08014231 A EP08014231 A EP 08014231A EP 2151660 A1 EP2151660 A1 EP 2151660A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- valve
- rear end
- valve body
- barrel
- discharge valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 title claims abstract description 28
- 239000007789 gas Substances 0.000 description 81
- 238000010304 firing Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41B—WEAPONS FOR PROJECTING MISSILES WITHOUT USE OF EXPLOSIVE OR COMBUSTIBLE PROPELLANT CHARGE; WEAPONS NOT OTHERWISE PROVIDED FOR
- F41B11/00—Compressed-gas guns, e.g. air guns; Steam guns
- F41B11/70—Details not provided for in F41B11/50 or F41B11/60
- F41B11/72—Valves; Arrangement of valves
- F41B11/723—Valves; Arrangement of valves for controlling gas pressure for firing the projectile only
Definitions
- the present invention relates to an air gun, for firing a bullet and performing blowback using compressed gas, and having a mechanism for both firing a bullet and performing blowback with energy supplied from compressed gas. More specifically, the structure of the air gun is more simplified compared to air guns having conventional blowback mechanisms and the air gun has a blowback mechanism that shoots a bullet and performs blows-back more effectively.
- a mechanism of a conventional air gun that shoots a bullet and performs blowback by compressed gas includes a magazine, a compressed air source, a slide, a cylinder, an inner barrel, a barrel body, and trigger.
- a valve pin is provided in a valve body air chamber that is a space containing compressed gas in the valve body.
- a hit pin is provided in a gun rear end side of the valve pin. The hit pin has a hammer that rotates backward by the action of the trigger. The hammer that rotates by the action of the trigger hits the hit pin to move the hit pin and valve pin towards the muzzle side of gun, causing the gas in the valve body air chamber to spout onto the valve pin to shoot a bullet and perform blowback.
- a US patent, USP 7,353,816 (Related Art 3) is a divisional application of the Related Art 2 and has become common knowledge.
- a gun has a structure where a cylinder that is provided in a gun rear end side of the slide capable of free movement, has a hammer and no hit pin.
- an air gun with a blowback mechanism disclosed in the Related Art 1 to 4 at least has a hammer at the rear end of the gun.
- the hammer rotates by a trigger bar or a shear that transmits the movement of the trigger, hits a hit pin from behind and moves the hit pin and valve pin from the muzzle side of the gun to eject the gas in the valve body air chamber to the valve pin for firing a bullet and performing blowback.
- an air gun with a blowback mechanism has members such as a hammer, a shear, a trigger bar, a bullet supplying nozzle, a bullet supplying nozzle link and their fittings, making the structure complicated.
- the members move every time a bullet is fired so that members are likely to be worn, and the air gun is easily damaged and likely to have problems with durability.
- compressed gas functions as a force to press the cylinder backward, then compressed gas starts applying power on a bullet on the muzzle side.
- a bullet is fired while the cylinder is retreating, and shooting a bullet during the retreat of the cylinder decreases the grouping on a target.
- an object of this invention is to provide an air gun comprising a magazine, a compressed gas source, a slide, a cylinder, an inner barrel, a valve body, a trigger and a mechanism that shoots a bullet using compressed gas and performs blowback
- the valve body is provided with a space that is a valve body air chamber capable of being supplied with compressed gas from a compressed gas source and being sealed to contain the compressed gas and a discharge valve that can move from the muzzle side to the gun rear end side in the valve body air chamber
- the discharge valve is provided with a valve through hole extending from the muzzle side to the gun rear end side and a gas supply port that opens and closes the valve body air chamber and the valve through hole by movement from the muzzle side to the gun rear end side
- a blowback mechanism is provided, which moves the discharge valve towards the gun rear end side by the retreat of the inner barrel so that the gas supply port of the discharge valve opens to eject compressed gas to the valve through hole from the valve body air chamber for shooting a
- an air gun comprising a magazine, a compressed gas source, a slide, a cylinder, an inner barrel, a valve body, a barrel latch, a trigger, and a mechanism that shoots a bullet by compressed gas and performs blowback
- the valve body is provided with a space that is a valve body air chamber capable of being supplied with compressed gas from a compressed gas source and being sealed to contain the compressed gas and a discharge valve that can move from the muzzle side to the gun rear end side in the valve body air chamber
- the discharge valve is provided with a valve through hole extending from the muzzle side to the gun rear end side and a gas supply port that opens and closes the valve body air chamber and the valve through hole by the movement from the muzzle side to the gun rear end side
- a pin through hole positioned on the muzzle side of the discharge valve that extends from the muzzle side to the gun rear end side is provided, a hit pin that can move from the muzzle side to the gun rear end side and move the discharge valve
- the present invention eliminates the need for members such as a hammer, a shear, a trigger bar, a bullet supplying nozzle, a bullet supplying link and fittings that were conventionally used for air guns with a blowback mechanism, and the number of parts is decreased compared to the Related Art, reducing the cost of manufacturing and problems, and improving durability of an air gun.
- an air gun with a conventional blowback mechanism becomes ready to shoot a bullet by rotating a hammer through retreat of a slide.
- the retreat energy of a slide is smaller than the Related Art because a hammer is not rotated when a slide is retreated so that compressed gas can be used more effectively.
- compressed gas according to the present invention can shoot a bullet before retreating a cylinder, different from the Related Art 1. Consequently, an air gun does not move because of retreat of a cylinder, and grouping is rarely affected to improve performance of the air gun.
- FIGS. 1 to 9 are front section explanatory drawings showing one cycle of actions until shooting of a bullet from an air gun
- Figs. 10 to 18 that are enlarged front cutaway sections of essential parts
- Figs. 19 to 23 that are the discharge valve used in the air gun of the present invention
- Fig. 24 to 26 that show the relationships among the inner barrel, the barrel housing and the barrel latch.
- Fig. 1 is a front cutaway section showing the overall structure of an air gun with a blowback mechanism according to an embodiment of the present invention, with a magazine containing bullets and a cylinder containing compressed gas inserted into the air gun.
- An air gun according to an embodiment of the present invention is an automatic air gun that shoots a bullet W using gas pressure of compressed carbon dioxide gas while performing blowback and loading of the next bullet.
- compressed dioxide gas is used.
- the gun may be operated by other compressed gases such as compressed nitrogen gas and compressed air.
- compressed dioxide gas is called compressed gas in this embodiment.
- a frame (grip) 2 is provided at the bottom of the gun rear end side of the air gun main body 1.
- the frame 2 contains a replacable gas cylinder A that is a compressed gas source supplying compressed gas.
- An accumulator may be provided in the frame 2 as a compressed gas source other than an accumulator cylinder A.
- the gas cylinder A is inserted from the side of the frame 2 and pressed upward by a cap screw so that a gas supplying port C at the upper end is opened and the compressed gas is supplied to a valve body air chamber 17a via a gas passage 18.
- the gas cylinder A of compressed gas is contained in the frame 2.
- the gas cylinder A may be attached to the outside of the frame 2 or gas may be supplied from a gas cylinder worn by a user to the air gun main body 1 via hose, etc.
- the major parts of the air gun of the present invention include an air gun main body with a frame 2 (grip) at the back side, a magazine 15 detachable to and from the frame 2, an inner barrel 5 that is a bullet path, an outer barrel 4 provided outside the inner barrel, a slide 3 slidably provided parallel to the outer barrel 4, a cylinder 23 fixed to the inside of the gun rear end side of the slide 3, a chamber 11 provided at the gun rear side of the barrel 5, a valve body 17 with a hollow valve body air chamber 17a provided between a chamber 11 and cylinder 23, a discharge valve 19 provided in the valve body air chamber 17a, a hit pin 22 provided between the inner barrel 5 and the discharge valve 19, and barrel latch 9 operated by a trigger 13.
- the slide 3 can be slid along the outer barrel 4 and is biased on the muzzle side by the tensile force of a recoil spring 12.
- the inner barrel 5 is provided inside the outer barrel 4, both of which are cylindrical.
- a barrel housing 8 is fixed in an integrated manner close to the center of the longitudinal direction of the inner barrel 5, can be freely slid along the outer barrel 4, and is biased towards the gun rear end side by the barrel spring 6.
- a barrel latch 9 is rotatably provided on the barrel housing 8 centering on the barrel latch rotational axis 9c. The uniform barrel latches 9 are attached to the two sides of the barrel housing 8 and the inner barrel 5 (Refer to Figs. 24 to 26 ).
- a barrel spring washer 7 is provided at the muzzle side of the barrel housing 8 and abuts on the gun rear end side of the barrel spring 6.
- the barrel spring 6 and barrel spring washer 7 are slidably provided between the tip of the muzzle side of the inner barrel 5 and the side of the muzzle of the barrel housing 8.
- the barrel spring washer 7 forms the lower part as a frame locking part 7a.
- the frame locking part 7a abuts on a barrel spring washer retreat stop part 2b to stop retreat of the barrel.
- the lower part of the barrel latch 9 is biased to the muzzle side in the barrel housing 8 by the barrel latch spring 10.
- the gun rear end side is downwardly biased centering on the barrel latch rotational axis 9c.
- the barrel latch 9 is locked when the barrel housing locking part 9b formed at the gun rear end side of the barrel latch 9 abuts against the barrel latch locking part 8a of the barrel housing 8.
- the barrel latch 9 and the trigger abutment 9a formed on the gun rear end side lock and release the lock of the trigger upper top 13b and trigger 13.
- the chamber 11 is a cylindrical space positioned between the rear end of the inner barrel 5 and the front end of the valve body 17.
- the lower surface opening 11a is provided on the lower surface of the chamber. The bullet W supplied from the magazine 15 is supplied into the chamber 11 via the lower surface opening 11a.
- the trigger 13 is rotatably centered on the trigger axis provided on the air gun main body 1.
- the upper end of the trigger 13 is biased against the gun rear end side by the trigger spring 14.
- the magazine 15 is detachably provided in the frame 2. Multiple bullets W are loaded in the magazine 15.
- a magazine spring 16 is provided in the magazine 15. Bullets W are always biased upwards by the magazine spring 16.
- a bullet W abuts against the lower part of the outer circumferential surface of the rear end of the inner barrel 5 and is locked.
- a bullet W moves upwards by the urging force of the magazine spring 16 and is placed in the chamber 11 (the bullet is loaded in the chamber).
- the valve body 17 fixed to the frame 2 is provided between the chamber 11 on the muzzle side and the cylinder 23 on the gun rear side and incorporates a hollow valve body air chamber 17a inside.
- the valve body 17 can be sealed to contain the compressed gas.
- the discharge valve 19 is provided in the valve body air chamber 17a capable of moving away from the muzzle side to the gun rear end side.
- the discharge valve 19 has a valve through hole 190 passing from the muzzle side to the gun rear end side in the valve body air chamber 17a, is cylindrical, has the flange part 19a on the circumference, and has a valve spring 21 that biases the discharge valve 19 towards the muzzle on the circumferential surface.
- the diameter of the flange part 19a is larger than the other outer diameters of the discharge valve 19. If the discharge valve 19 is biased towards the muzzle side by the valve spring 21, the flange part 19a abuts against the valve packing 20 provided in front of the valve body air chamber 17a to close the gas inlet port 19b and the inside of the valve body air chamber 17a.
- the discharge valve 19 has the gas inlet port 19b that can open or close the valve body air chamber 17a and valve through hole 190 depending on the movement from the muzzle to the gun rear end side on the muzzle side of the flange part 19a and further has a discharge valve front part 19c with a front through hole 190b on the muzzle side of the gas supply port 19b.
- the cylindrical diameter of the discharge valve front part 19c is smaller than the cylindrical diameter of the rear of the flange part 19a.
- the cylindrical diameter of the discharge valve front part 19c can fit the internal cylindrical diameter of the hit pin 22 described below.
- the valve through hole 190 passes completely from the muzzle to the gun rear end side.
- a rear through hole 190a is formed at the gun rear end side of the gas supply port 19b and a front through hole 190b is formed at the muzzle side.
- the hit pin 22 is positioned at the muzzle side of the discharge valve 19, has a pin through hole 22a that completely pass from the muzzle to the gun rear end side, and can move in the longitudinal direction.
- the hit pin 22 fits the discharge valve front part 19c of the discharge valve 19.
- the hit pin 22 can move the discharge valve 19 in the longitudinal direction by the retreat of the inner barrel 5.
- the cylinder 23 is slidably provided on the slide 3 in an integrated manner.
- the cylinder 23 is cylindrical and provided with the rear wall surface on the gun rear end side.
- the inner surface of the wall is constituted as the cylinder pressure receiving surface 23a.
- the rear part of the valve body 17 is inserted into the cylinder 23.
- the gas cylinder A is provided in the frame 2 of the air gun main body.
- the gas cylinder is inserted into the frame 2.
- the compressed gas in the gas cylinder A passes through the gas supply port C and gas passage to impregnate the valve body air chamber 17a so that the initial state is obtained.
- Figs. 2 and 11 show a state in which a user manually pulls the trigger 13 towards the gun rear end side starting from the state shown in Fig. 1 .
- the trigger 13 rotates centering on the trigger axis 13a and the upper tip part 13b of the trigger abuts against and presses the trigger abutting part 9a of the barrel latch 9.
- the barrel housing 8 presses the barrel spring washer 7 towards the muzzle side.
- the barrel spring washer 7 moves to the muzzle side while pressing the barrel spring 6.
- the inner barrel 5 and the barrel housing 8 move towards the muzzle.
- Figs. 3 and 12 will be explained. If the trigger 13 is pulled further towards the gun rear end side, the upper tip part 13b of the trigger is tripped from the trigger abutting part 9a of the barrel latch 9 and the abutment between the trigger 13 and the barrel latch 9 is released.
- a bullet W is biased above the magazine spring 16 in the magazine 15 and the bullet cannot move into the chamber 11 because it abuts on the lower part of the circumference of the rear end of the inner barrel 5.
- the inner barrel 5 moves towards the muzzle side and the lower surface opening 11a of the chamber 11 opens and a bullet W is inserted into the chamber 11 from the lower surface opening 11a to be loaded.
- Figs, 5 and 14 will now be explained.
- the inner barrel 5 moves further towards the gun rear end side from the state shown in Figs. 4 and 13 .
- the barrel spring washer 7 stops retreating towards the gun rear end side because the frame locking part 7a formed below the barrel spring washer 7 abuts on the barrel spring washer retreat stop part 2b formed in the frame 2.
- the inner barrel 5 and the barrel housing 8 keep on moving towards the gun rear end side by the movement inertial force due to their own weight, even though the barrel spring washer 7 has stopped retreating.
- the barrel spring washer 7 is removed from the barrel housing 8.
- the gun rear end side of the inner barrel 5 keeps on moving backward due to its inertial force, enters the inner circumference of the chamber 11, hits the hit pin 22 and presses and moves the hit pin 22 towards the gun rear end side.
- Figs. 7 and 16 will now be explained.
- the remaining gas enters the valve through hole 190 from the valve body air chamber 17a via the gas supply port 19b, and discharged from the opening at the rear end of the discharge valve 19 to press the cylinder pressure receiving surface 23a.
- This pressure thrusts back the cylinder 23 and the slide 3 consolidated with the cylinder 23.
- the slide 3 and the cylinder 23 further keep on retreating while resisting the urging force of the recoil spring 12 because the gas in the valve body air chamber 17a keep on blowing out.
- the slide 3 stops retreating when the slide locking part 3b provided on the lower part of the muzzle side of the slide 3 abuts on the slide retreat stopping part 2a provided on the frame 2.
- the gas remaining in the cylinder 23 is discharged into the atmosphere from the muzzle side opening of the cylinder 23.
- Figs. 9 and 19 will now be explained.
- the trigger 13 rotates in a clockwise direction centering on the trigger axis 13a by the urging force of the trigger spring 14 to return to the original position (the state shown in Fig. 1 ).
- the barrel latch 9 is raised by the upper tip part 14b of the trigger 13 due to the movement of the trigger 13 to return to the original position. After that, the barrel latch 9 is locked when the barrel housing locking part 9b of the barrel latch 9 abuts on the barrel latch locking part 8a of the barrel housing 8.
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Abstract
Description
- The present invention relates to an air gun, for firing a bullet and performing blowback using compressed gas, and having a mechanism for both firing a bullet and performing blowback with energy supplied from compressed gas. More specifically, the structure of the air gun is more simplified compared to air guns having conventional blowback mechanisms and the air gun has a blowback mechanism that shoots a bullet and performs blows-back more effectively.
- A mechanism of a conventional air gun that shoots a bullet and performs blowback by compressed gas includes a magazine, a compressed air source, a slide, a cylinder, an inner barrel, a barrel body, and trigger. A valve pin is provided in a valve body air chamber that is a space containing compressed gas in the valve body. A hit pin is provided in a gun rear end side of the valve pin. The hit pin has a hammer that rotates backward by the action of the trigger. The hammer that rotates by the action of the trigger hits the hit pin to move the hit pin and valve pin towards the muzzle side of gun, causing the gas in the valve body air chamber to spout onto the valve pin to shoot a bullet and perform blowback.
- An air gun that has a blowback mechanism with this construction is disclosed in
USP 6,026,797 (Related Art 1) that the applicant of the present invention applied for and owns a patent right. The Related Art discloses a following air gun: - This invention can make a valve compact in function and improve usage efficiency of a compressed gas and make an air gun compact. To achieve this object, an air gun is constructed by a hit pin arranged in a cylinder portion, a valve body arranged within a hollow portion of the cylinder portion and having a bullet supplying nozzle chamber and a valve pin chamber, a gas inlet port opened to a sleeve-shaped circumferential face of the valve pin chamber, a bullet supplying nozzle arranged within the bullet supplying nozzle chamber, and a valve pin arranged within the valve pin chamber. The hit pin is pressed on a muzzle side and the valve pin is slid to the muzzle side so that an airtight state between a valve pin flange portion and a side face of the valve pin chamber on its gun rear end side is released. A compressed gas is supplied to a nozzle chamber side opening and a valve pin chamber side opening from a clearance between the valve pin flange portion and the gun rear end side face of the valve pin chamber.
- Additionally,
USP 7,267,119 (Related Art 2) that the applicant of the present invention applied for and owns a patent discloses as follows: - An air gun including a slide, a barrel, a cylinder portion, a hit pin, a hollow valve pin chamber, a valve body, a gas supply port, a valve pin, a pressing section, a bullet feed nozzle link connected to a trigger; and a bullet feed nozzle. When the hit pin is pressed to the muzzle side and made to slide to the muzzle side, the valve pin slides to the muzzle side against an urging force to release an airtight state between the valve pin flange section and the gun rear end side side surface of the valve pin chamber; compressed gas supplied to the valve pin chamber from the gas supply port is supplied from between the valve pin chamber gun rear end side side surface and the valve pin flange section to the valve pin chamber side opening; and a bullet is fired from the muzzle by passing compressed gas through the bullet feed nozzle insertion section a supplying to the muzzle side of the bullet feed nozzle; and compressed gas is supplied from a clearance between the pressing section and through holes into which the pressing section is inserted to the gun rear end side to cause the cylinder section to move to the gun rear end side.
- A US patent,
USP 7,353,816 (Related Art 3) is a divisional application of theRelated Art 2 and has become common knowledge. In his technology, a gun has a structure where a cylinder that is provided in a gun rear end side of the slide capable of free movement, has a hammer and no hit pin. - Further, the applicant of the present invention applied for a patent of an air gun having a blowback mechanism with a barrel latch in Taiwan on December 7, 2006 as follows (Taiwan Patent Application Number
95145714 USP A11/655,205 ,EPA 06027082.4 - An air gun, for firing a bullet using compressed gas, and having a mechanism for blowing back, wherein
- the blowback mechanism is provided with a firing chamber and a blowback chamber, being two cavities capable of being supplied with compressed gas from a compressed gas source and being sealed to contain the compressed gas, inside a valve body, a firing valve inside the firing chamber, a blowback valve inside the blowback chamber, and two valves that are capable of actuation independent of each other by operation of a trigger.
- However, an air gun with a blowback mechanism disclosed in the
Related Art 1 to 4 at least has a hammer at the rear end of the gun. The hammer rotates by a trigger bar or a shear that transmits the movement of the trigger, hits a hit pin from behind and moves the hit pin and valve pin from the muzzle side of the gun to eject the gas in the valve body air chamber to the valve pin for firing a bullet and performing blowback. - Therefore, an air gun with a blowback mechanism has members such as a hammer, a shear, a trigger bar, a bullet supplying nozzle, a bullet supplying nozzle link and their fittings, making the structure complicated. The members move every time a bullet is fired so that members are likely to be worn, and the air gun is easily damaged and likely to have problems with durability.
- Additionally, in an air gun with a blowback mechanism disclosed in the
Related Art 1, in some cases, at first, compressed gas functions as a force to press the cylinder backward, then compressed gas starts applying power on a bullet on the muzzle side. A bullet is fired while the cylinder is retreating, and shooting a bullet during the retreat of the cylinder decreases the grouping on a target. - Therefore, in consideration of these problems, an object of this invention is to provide an air gun comprising a magazine, a compressed gas source, a slide, a cylinder, an inner barrel, a valve body, a trigger and a mechanism that shoots a bullet using compressed gas and performs blowback, wherein
the valve body is provided with a space that is a valve body air chamber capable of being supplied with compressed gas from a compressed gas source and being sealed to contain the compressed gas and a discharge valve that can move from the muzzle side to the gun rear end side in the valve body air chamber;
the discharge valve is provided with a valve through hole extending from the muzzle side to the gun rear end side and a gas supply port that opens and closes the valve body air chamber and the valve through hole by movement from the muzzle side to the gun rear end side; and
a blowback mechanism is provided, which moves the discharge valve towards the gun rear end side by the retreat of the inner barrel so that the gas supply port of the discharge valve opens to eject compressed gas to the valve through hole from the valve body air chamber for shooting a bullet and performing blowback. - Further, it is an object of the present invention to provide an air gun comprising a magazine, a compressed gas source, a slide, a cylinder, an inner barrel, a valve body, a barrel latch, a trigger, and a mechanism that shoots a bullet by compressed gas and performs blowback, wherein
the valve body is provided with a space that is a valve body air chamber capable of being supplied with compressed gas from a compressed gas source and being sealed to contain the compressed gas and a discharge valve that can move from the muzzle side to the gun rear end side in the valve body air chamber;
the discharge valve is provided with a valve through hole extending from the muzzle side to the gun rear end side and a gas supply port that opens and closes the valve body air chamber and the valve through hole by the movement from the muzzle side to the gun rear end side;
a pin through hole positioned on the muzzle side of the discharge valve that extends from the muzzle side to the gun rear end side is provided, a hit pin that can move from the muzzle side to the gun rear end side and move the discharge valve by retreat of the inner barrel is provided; and
a blowback mechanism is provided, in which the inner barrel moves by the movement of the barrel latch moved by the movement of the trigger, the hit pin is moved towards the gun rear end side by the retreat of the inner barrel, the gas supply port of the discharge valve is opened by the movement of the discharge valve towards the gun rear end side, and compressed gas blows out into the valve through hole from the valve body air chamber to shoot a bullet and perform blowback. - The present invention eliminates the need for members such as a hammer, a shear, a trigger bar, a bullet supplying nozzle, a bullet supplying link and fittings that were conventionally used for air guns with a blowback mechanism, and the number of parts is decreased compared to the Related Art, reducing the cost of manufacturing and problems, and improving durability of an air gun.
- Additionally, an air gun with a conventional blowback mechanism becomes ready to shoot a bullet by rotating a hammer through retreat of a slide. According to the present invention, the retreat energy of a slide is smaller than the Related Art because a hammer is not rotated when a slide is retreated so that compressed gas can be used more effectively.
- Further, compressed gas according to the present invention can shoot a bullet before retreating a cylinder, different from the
Related Art 1. Consequently, an air gun does not move because of retreat of a cylinder, and grouping is rarely affected to improve performance of the air gun. -
-
Fig. 1 is a front cutaway section of the overall structure of an air gun with a blowback mechanism according to an embodiment of the present invention having a magazine containing bullets and a cylinder containing compressed gas inserted into the air gun; -
Fig. 2 is a front cutaway section of an action of the air gun with a blowback mechanism according to an embodiment of the present invention, and showing a state immediately after a shooter has started manually sliding a slide towards the gun rear end side ; -
Fig. 3 is a front cutaway section of the state after the state shown inFig. 2 ; -
Fig. 4 is a front cutaway section of the state after the state shown inFig. 3 ; -
Fig. 5 is a front cutaway section of the state after the state shown inFig. 4 ; -
Fig. 6 is a front cutaway section of the state in which a bullet is shot after the state shown inFig. 4 ; -
Fig. 7 is a front cutaway section of the state in which a slide moves towards a gun rear end side by gas pressure from a valve body air chamber after the state shown inFig. 6 ; -
Fig. 8 is a front cutaway section of the state in which a slide has reached a gun rear end and is moving towards the muzzle side of the air gun by the force urged by a barrel spring after the state shown inFig. 7 ; -
Fig. 9 is a front cutaway section of the state in which a trigger is returning to the original position after a series of bullet shooting and blowback actions have completed after the state shown inFig. 8 ; -
Fig. 10 is an enlarged front cutaway section of essential parts showing an initial state of a valve body air chamber, a discharge valve, a hit pin, barrel latch, etc shown inFig. 1 ; -
Fig. 11 is an enlarged front cutaway section of essential parts showing operations of a valve body air chamber, a discharge valve, a hit pin, barrel latch, etc. shown inFig. 2 ; -
Fig. 12 is an enlarged front cutaway section of essential parts showing operations of a valve body air chamber, a discharge valve, a hit pin, barrel latch, etc. shown inFig. 3 ; -
Fig. 13 is an enlarged front cutaway section of essential parts showing operations of a valve body air chamber, a discharge valve, a hit pin, barrel latch, etc. shown inFig. 4 ; -
Fig. 14 is an enlarged front cutaway section of essential parts showing operations of a valve body air chamber, a discharge valve, a hit pin, barrel latch, etc. shown inFig. 5 ; -
Fig. 15 is an enlarged front cutaway section of essential parts showing operations of a valve body air chamber, a discharge valve, a hit pin, barrel latch, etc. shown inFig. 6 ; -
Fig. 16 is an enlarged front cutaway section of essential parts showing operations of a valve body air chamber, a discharge valve, a hit pin, barrel latch, etc. shown inFig. 7 ; -
Fig. 17 is an enlarged front cutaway section of essential parts showing operations of a valve body air chamber, a discharge valve, a hit pin, barrel latch, etc. shown inFig. 8 ; -
Fig. 18 is an enlarged front cutaway section of essential parts showing operations of a valve body air chamber, a discharge valve, a hit pin, barrel latch, etc. shown inFig. 9 ; -
Fig. 19 is a front drawing of an embodiment of the discharge valve used in the present invention; -
Fig. 20 is a plane drawing of the discharge valve; -
Fig. 21 is a left side drawing of the discharge valve seen from the muzzle side; -
Fig. 22 is a right side drawing of the discharge valve seen from the gun rear end side; -
Fig. 23 is a front cross-sectional drawing of the discharge valve; -
Fig. 24 is an enlarged front cross-sectional drawing of the essential parts according to an embodiment of the present invention showing the relationship among the barrel housing, the barrel latch and the inner barrel; -
Fig. 25 is an enlarged plane cross-sectional drawing of the essential parts according to an embodiment of the present invention showing the relationship among the barrel housing, the barrel latch and the inner barrel; and -
Fig. 26 is an enlarged side cross-sectional drawing of the essential parts according to an embodiment of the present invention showing the relationship among the barrel housing, the barrel latch and the inner barrel. - An air gun with a blowback mechanism according to an embodiment of the present invention will now be explained referring to
Figs. 1 to 9 that are front section explanatory drawings showing one cycle of actions until shooting of a bullet from an air gun,Figs. 10 to 18 that are enlarged front cutaway sections of essential parts,Figs. 19 to 23 that are the discharge valve used in the air gun of the present invention, andFig. 24 to 26 that show the relationships among the inner barrel, the barrel housing and the barrel latch. -
Fig. 1 is a front cutaway section showing the overall structure of an air gun with a blowback mechanism according to an embodiment of the present invention, with a magazine containing bullets and a cylinder containing compressed gas inserted into the air gun. - A structure of an air gun with a blowback mechanism according to an embodiment of the present invention will now be explained referring to
Fig. 1 andFig. 10 that is a partially enlarged drawing ofFig. 1 . An air gun according to an embodiment of the present invention is an automatic air gun that shoots a bullet W using gas pressure of compressed carbon dioxide gas while performing blowback and loading of the next bullet. In this embodiment, compressed dioxide gas is used. However, the gun may be operated by other compressed gases such as compressed nitrogen gas and compressed air. Hereinafter, compressed dioxide gas is called compressed gas in this embodiment. - A frame (grip) 2 is provided at the bottom of the gun rear end side of the air gun
main body 1. Theframe 2 contains a replacable gas cylinder A that is a compressed gas source supplying compressed gas. An accumulator may be provided in theframe 2 as a compressed gas source other than an accumulator cylinder A. The gas cylinder A is inserted from the side of theframe 2 and pressed upward by a cap screw so that a gas supplying port C at the upper end is opened and the compressed gas is supplied to a valvebody air chamber 17a via agas passage 18. In this embodiment, the gas cylinder A of compressed gas is contained in theframe 2. However, the gas cylinder A may be attached to the outside of theframe 2 or gas may be supplied from a gas cylinder worn by a user to the air gunmain body 1 via hose, etc. - The major parts of the air gun of the present invention include an air gun main body with a frame 2 (grip) at the back side, a
magazine 15 detachable to and from theframe 2, aninner barrel 5 that is a bullet path, anouter barrel 4 provided outside the inner barrel, aslide 3 slidably provided parallel to theouter barrel 4, acylinder 23 fixed to the inside of the gun rear end side of theslide 3, achamber 11 provided at the gun rear side of thebarrel 5, avalve body 17 with a hollow valvebody air chamber 17a provided between achamber 11 andcylinder 23, adischarge valve 19 provided in the valvebody air chamber 17a, ahit pin 22 provided between theinner barrel 5 and thedischarge valve 19, andbarrel latch 9 operated by atrigger 13. - The
slide 3 can be slid along theouter barrel 4 and is biased on the muzzle side by the tensile force of arecoil spring 12. Theinner barrel 5 is provided inside theouter barrel 4, both of which are cylindrical. - A
barrel housing 8 is fixed in an integrated manner close to the center of the longitudinal direction of theinner barrel 5, can be freely slid along theouter barrel 4, and is biased towards the gun rear end side by thebarrel spring 6. Abarrel latch 9 is rotatably provided on thebarrel housing 8 centering on the barrel latchrotational axis 9c. The uniform barrel latches 9 are attached to the two sides of thebarrel housing 8 and the inner barrel 5 (Refer toFigs. 24 to 26 ). - A
barrel spring washer 7 is provided at the muzzle side of thebarrel housing 8 and abuts on the gun rear end side of thebarrel spring 6. Thebarrel spring 6 andbarrel spring washer 7 are slidably provided between the tip of the muzzle side of theinner barrel 5 and the side of the muzzle of thebarrel housing 8. Thebarrel spring washer 7 forms the lower part as aframe locking part 7a. Theframe locking part 7a abuts on a barrel spring washer retreat stoppart 2b to stop retreat of the barrel. - The lower part of the
barrel latch 9 is biased to the muzzle side in thebarrel housing 8 by thebarrel latch spring 10. The gun rear end side is downwardly biased centering on the barrel latchrotational axis 9c. Thebarrel latch 9 is locked when the barrelhousing locking part 9b formed at the gun rear end side of thebarrel latch 9 abuts against the barrellatch locking part 8a of thebarrel housing 8. Thebarrel latch 9 and thetrigger abutment 9a formed on the gun rear end side lock and release the lock of the trigger upper top 13b andtrigger 13. - The
chamber 11 is a cylindrical space positioned between the rear end of theinner barrel 5 and the front end of thevalve body 17. Thelower surface opening 11a is provided on the lower surface of the chamber. The bullet W supplied from themagazine 15 is supplied into thechamber 11 via thelower surface opening 11a. - The
trigger 13 is rotatably centered on the trigger axis provided on the air gunmain body 1. The upper end of thetrigger 13 is biased against the gun rear end side by thetrigger spring 14. - The
magazine 15 is detachably provided in theframe 2. Multiple bullets W are loaded in themagazine 15. Amagazine spring 16 is provided in themagazine 15. Bullets W are always biased upwards by themagazine spring 16. When themagazine 15 is inserted into theframe 2, a bullet W abuts against the lower part of the outer circumferential surface of the rear end of theinner barrel 5 and is locked. When theinner barrel 5 moves towards the muzzle, a bullet W moves upwards by the urging force of themagazine spring 16 and is placed in the chamber 11 (the bullet is loaded in the chamber). - The
valve body 17 fixed to theframe 2 is provided between thechamber 11 on the muzzle side and thecylinder 23 on the gun rear side and incorporates a hollow valvebody air chamber 17a inside. Thevalve body 17 can be sealed to contain the compressed gas. Thedischarge valve 19 is provided in the valvebody air chamber 17a capable of moving away from the muzzle side to the gun rear end side. - As shown in
Fig 19 to 23 , thedischarge valve 19 has a valve throughhole 190 passing from the muzzle side to the gun rear end side in the valvebody air chamber 17a, is cylindrical, has theflange part 19a on the circumference, and has avalve spring 21 that biases thedischarge valve 19 towards the muzzle on the circumferential surface. The diameter of theflange part 19a is larger than the other outer diameters of thedischarge valve 19. If thedischarge valve 19 is biased towards the muzzle side by thevalve spring 21, theflange part 19a abuts against the valve packing 20 provided in front of the valvebody air chamber 17a to close thegas inlet port 19b and the inside of the valvebody air chamber 17a. - The
discharge valve 19 has thegas inlet port 19b that can open or close the valvebody air chamber 17a and valve throughhole 190 depending on the movement from the muzzle to the gun rear end side on the muzzle side of theflange part 19a and further has a discharge valvefront part 19c with a front throughhole 190b on the muzzle side of thegas supply port 19b. The cylindrical diameter of the discharge valvefront part 19c is smaller than the cylindrical diameter of the rear of theflange part 19a. The cylindrical diameter of the discharge valvefront part 19c can fit the internal cylindrical diameter of thehit pin 22 described below. - The valve through
hole 190 passes completely from the muzzle to the gun rear end side. A rear throughhole 190a is formed at the gun rear end side of thegas supply port 19b and a front throughhole 190b is formed at the muzzle side. - The
hit pin 22 is positioned at the muzzle side of thedischarge valve 19, has a pin through hole 22a that completely pass from the muzzle to the gun rear end side, and can move in the longitudinal direction. In this embodiment, thehit pin 22 fits the discharge valvefront part 19c of thedischarge valve 19. Thehit pin 22 can move thedischarge valve 19 in the longitudinal direction by the retreat of theinner barrel 5. - The
cylinder 23 is slidably provided on theslide 3 in an integrated manner. Thecylinder 23 is cylindrical and provided with the rear wall surface on the gun rear end side. The inner surface of the wall is constituted as the cylinderpressure receiving surface 23a. The rear part of thevalve body 17 is inserted into thecylinder 23. - In this embodiment, the gas cylinder A is provided in the
frame 2 of the air gun main body. The gas cylinder is inserted into theframe 2. When the gas supply port C is opened by the pin in the frame, the compressed gas in the gas cylinder A passes through the gas supply port C and gas passage to impregnate the valvebody air chamber 17a so that the initial state is obtained. - One cycle of shooting a bullet from an air gun with a blowback mechanism according to an embodiment of the present invention will now be explained referring to
Figs. 2 to 9 andFigs. 11 to 18 that are enlarged front cutaway sections of essential parts corresponding toFigs. 2 to 9 . -
Figs. 2 and11 show a state in which a user manually pulls thetrigger 13 towards the gun rear end side starting from the state shown inFig. 1 . Thetrigger 13 rotates centering on thetrigger axis 13a and theupper tip part 13b of the trigger abuts against and presses thetrigger abutting part 9a of thebarrel latch 9. At the same time, thebarrel housing 8 presses thebarrel spring washer 7 towards the muzzle side. Thebarrel spring washer 7 moves to the muzzle side while pressing thebarrel spring 6. At the same time, theinner barrel 5 and thebarrel housing 8 move towards the muzzle. - Now,
Figs. 3 and12 will be explained. If thetrigger 13 is pulled further towards the gun rear end side, theupper tip part 13b of the trigger is tripped from thetrigger abutting part 9a of thebarrel latch 9 and the abutment between thetrigger 13 and thebarrel latch 9 is released. - In
Fig. 2 and11 , a bullet W is biased above themagazine spring 16 in themagazine 15 and the bullet cannot move into thechamber 11 because it abuts on the lower part of the circumference of the rear end of theinner barrel 5. In the state shown inFigs. 3 and12 , theinner barrel 5 moves towards the muzzle side and the lower surface opening 11a of thechamber 11 opens and a bullet W is inserted into thechamber 11 from thelower surface opening 11a to be loaded. -
Figs. 4 and13 will now be explained. When the abutment between thetrigger 13 and thebarrel latch 9 is released, thebarrel spring 6 presses and moves thebarrel spring washer 7 towards the gun rear end side by its urging force. The urging force of thebarrel spring 6 moves theinner barrel 5 andbarrel housing 8 towards the gun rear end side in an integrated manner via thebarrel spring washer 7. When theinner barrel 5 moves further towards the gun rear end side, the bullet W loaded in thechamber 11 is inserted into the inner diameter of theinner barrel 5 from the gun rear end of the inner barrel. At the same time, the next bullet W2 in themagazine 15 abuts on the rear end circumferential surface of theinner barrel 5 and stops. -
Figs, 5 and14 will now be explained. Theinner barrel 5 moves further towards the gun rear end side from the state shown inFigs. 4 and13 . Then, thebarrel spring washer 7 stops retreating towards the gun rear end side because theframe locking part 7a formed below thebarrel spring washer 7 abuts on the barrel spring washer retreat stoppart 2b formed in theframe 2. Theinner barrel 5 and thebarrel housing 8 keep on moving towards the gun rear end side by the movement inertial force due to their own weight, even though thebarrel spring washer 7 has stopped retreating. Thus, thebarrel spring washer 7 is removed from thebarrel housing 8. - The gun rear end side of the
inner barrel 5 keeps on moving backward due to its inertial force, enters the inner circumference of thechamber 11, hits thehit pin 22 and presses and moves thehit pin 22 towards the gun rear end side. -
Figs. 6 and15 will now be explained. When theinner barrel 5 retreats to make thehit pin 22 move towards the gun rear end, thedischarge valve 19 which fits thehit pin 22 also retreats towards the gun rear end side. Theflange part 19a moves away fromvalve gasket 20 due to the retreat of thedischarge valve 19, and thegas supply port 19b communicates with the valvebody air chamber 17a. Therefore, the gas filled in the valvebody air chamber 17a enters the valve throughhole 190 via thegas supply port 19b. Some of the gas enters theinner barrel 5 from the front throughhole 190b via pin through path 22a. The gas pressure shoots the bullet W in theinner barrel 5 from the muzzle. -
Figs. 7 and16 will now be explained. The remaining gas enters the valve throughhole 190 from the valvebody air chamber 17a via thegas supply port 19b, and discharged from the opening at the rear end of thedischarge valve 19 to press the cylinderpressure receiving surface 23a. This pressure thrusts back thecylinder 23 and theslide 3 consolidated with thecylinder 23. Theslide 3 and thecylinder 23 further keep on retreating while resisting the urging force of therecoil spring 12 because the gas in the valvebody air chamber 17a keep on blowing out. Theslide 3 stops retreating when the slide locking part 3b provided on the lower part of the muzzle side of theslide 3 abuts on the slideretreat stopping part 2a provided on theframe 2. The gas remaining in thecylinder 23 is discharged into the atmosphere from the muzzle side opening of thecylinder 23. -
Figs. 8 and17 will now be explained. Theslide 3 starts advancing towards the muzzle by the urging force of therecoil spring 12. This advancing movement stops when the rear part of thevalve body 17 is inserted into thecylinder 23 and the cylinder pressure receiving surface in thecylinder 23 abut on the gun rear side end surface of thevalve body 17. -
Figs. 9 and19 will now be explained. When a user releases the finger from thetrigger 13 from the state ofFig. 17 , thetrigger 13 rotates in a clockwise direction centering on thetrigger axis 13a by the urging force of thetrigger spring 14 to return to the original position (the state shown inFig. 1 ). - The
barrel latch 9 is raised by theupper tip part 14b of thetrigger 13 due to the movement of thetrigger 13 to return to the original position. After that, thebarrel latch 9 is locked when the barrelhousing locking part 9b of thebarrel latch 9 abuts on the barrellatch locking part 8a of thebarrel housing 8. - It is also possible, returning to the initial state shown in
Fig. 1 from the state shown inFig. 9 , and following the operations fromFigs. 2 to 9 , to repeat a series of shooting operations.
Claims (2)
- An air gun comprising: a magazine, a compressed gas source, a slide, a cylinder, an inner barrel, a barrel body, a trigger and a mechanism that shoot a bullet and perform blowback using compressed air, wherein
the valve body is provided with a valve body air chamber that can be sealed to contain the compressed gas supplied from a compressed gas source, and a discharge valve that can move from the muzzle to the gun rear end side in the valve body air chamber;
the discharge valve has a valve through hole extending from the muzzle to the gun rear end, and a gas supply port that can open and close the valve body air chamber and valve through hole by the movement of the discharge valve in the longitudinal direction; and
the discharge valve that has moved towards the gun rear end by the retreat of the inner barrel opens the gas supply port of the discharge valve and makes compressed gas blow into the valve through hole from the valve body air chamber to shoot a bullet and perform blowback. - An air gun comprising: a magazine, a compressed gas source, a slide, a cylinder, an inner barrel, a valve body, a valve latch, a trigger, and a mechanism that shoots a bullet and performs blowback using compressed air, wherein
the valve body is provided with a valve body air chamber that can be sealed to contain the compressed gas supplied from the compressed gas source, and a discharge valve that can move from the muzzle to the gun rear end side in the valve body air chamber;
the discharge valve is provided with a valve through hole completely passing from the muzzle to the gun rear end, and a gas supply port that can open and close the valve body air chamber and valve through hole by the movement of the discharge valve in the longitudinal direction; and
a hit pin positioned at the muzzle side of the discharge valve, provided with a pin through hole which completely passes from the muzzle to the gun rear end, can move in a longitudinal direction and move the discharge valve towards the gun rear end side by the retreat of the inner barrel; and
a blowback mechanism moves the inner barrel by the operation of the barrel latch activated by the action of the trigger, moves the hit pin towards the gun rear end side by the retreat of the inner barrel, and opens the gas supply port of the discharge valve by moving the discharge valve towards the gun rear end side to make the compressed gas blow out into the valve through hole from the valve body air chamber to shoot a bullet and perform blowback.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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EP20080014231 EP2151660B1 (en) | 2008-08-08 | 2008-08-08 | Air gun with a blowback mechanism |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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EP20080014231 EP2151660B1 (en) | 2008-08-08 | 2008-08-08 | Air gun with a blowback mechanism |
Publications (2)
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EP2151660A1 true EP2151660A1 (en) | 2010-02-10 |
EP2151660B1 EP2151660B1 (en) | 2011-12-28 |
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EP20080014231 Active EP2151660B1 (en) | 2008-08-08 | 2008-08-08 | Air gun with a blowback mechanism |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016181426A1 (en) * | 2015-05-13 | 2016-11-17 | 株式会社スカイロボット | Color ball shooting device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6026797A (en) | 1998-09-25 | 2000-02-22 | Maruzen Company Limited | Air gun |
US6458009B1 (en) | 2000-06-07 | 2002-10-01 | Chuan-Tien Chuang | Fishing toy |
US20060162711A1 (en) * | 2004-12-30 | 2006-07-27 | Maruzen Company Limited | Air gun |
US20070181116A1 (en) * | 2006-02-06 | 2007-08-09 | Wilson Wei | Air gun |
EP1939576A1 (en) | 2006-12-29 | 2008-07-02 | Maruzen Company Limited | Air gun |
-
2008
- 2008-08-08 EP EP20080014231 patent/EP2151660B1/en active Active
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6026797A (en) | 1998-09-25 | 2000-02-22 | Maruzen Company Limited | Air gun |
DE19847638A1 (en) * | 1998-09-25 | 2000-04-27 | Company Limited Tokio Maruzen | Air gun for shooting a bullet by supplying compressed gas and performing blow-back for shooting the next bullet by moving a sliding portion backwards in the gun |
US6458009B1 (en) | 2000-06-07 | 2002-10-01 | Chuan-Tien Chuang | Fishing toy |
US20060162711A1 (en) * | 2004-12-30 | 2006-07-27 | Maruzen Company Limited | Air gun |
US7267119B2 (en) | 2004-12-30 | 2007-09-11 | Maruzen Company Limited | Air gun |
US7353816B2 (en) | 2004-12-30 | 2008-04-08 | Maruzen Company Limited | Air gun |
US20070181116A1 (en) * | 2006-02-06 | 2007-08-09 | Wilson Wei | Air gun |
EP1939576A1 (en) | 2006-12-29 | 2008-07-02 | Maruzen Company Limited | Air gun |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2016181426A1 (en) * | 2015-05-13 | 2016-11-17 | 株式会社スカイロボット | Color ball shooting device |
JP6097448B1 (en) * | 2015-05-13 | 2017-03-15 | 株式会社 スカイロボット | Color ball launcher |
Also Published As
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EP2151660B1 (en) | 2011-12-28 |
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