EP1939576A1 - Luftgewehr - Google Patents

Luftgewehr Download PDF

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Publication number
EP1939576A1
EP1939576A1 EP06027082A EP06027082A EP1939576A1 EP 1939576 A1 EP1939576 A1 EP 1939576A1 EP 06027082 A EP06027082 A EP 06027082A EP 06027082 A EP06027082 A EP 06027082A EP 1939576 A1 EP1939576 A1 EP 1939576A1
Authority
EP
European Patent Office
Prior art keywords
blowback
valve
firing
chamber
bullet
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
Application number
EP06027082A
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English (en)
French (fr)
Other versions
EP1939576B1 (de
Inventor
Tetsuo Maeda
Yoshiyuki Maeda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Maruzen Co Ltd
Original Assignee
Maruzen Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Maruzen Co Ltd filed Critical Maruzen Co Ltd
Priority to DE200660015212 priority Critical patent/DE602006015212D1/de
Priority to EP20060027082 priority patent/EP1939576B1/de
Publication of EP1939576A1 publication Critical patent/EP1939576A1/de
Application granted granted Critical
Publication of EP1939576B1 publication Critical patent/EP1939576B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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

  • This invention relates to an air gun for carrying out firing and blowback with a compressed gas as an energy source, and has a structure for supplying energy for both firing of a bullet and carrying out blowback from a single compressed gas.
  • the invention relates to an air gun that performs firing of a bullet and blowback more efficiently than a conventional air gun for firing and carrying out blowback, and with which design of bullet firing and blowback adjustment can be made more simple.
  • a mechanism of a conventional air gun, for firing a bullet using compressed gas and performing blowback has a single air chamber, and a single valve is provided inside the air chamber. By distributing the gas inside the air chamber for firing use and blowback use, both firing and blowback are carried out by operating the single valve.
  • an air gun as described above in which the cylinder section is provided freely moving inside a gun rear side of the slide, and there is no hit pin.
  • the firing operation and the blowback operation can not be independently adjusted separately at the design stage. That is, since distribution of gas pressure of the compressed gas is difficult, adjustment of bullet speed and adjustment of blowback strength and period, etc. at the time of design is extremely difficult.
  • an air gun for firing a bullet using compressed gas, and having a mechanism for performing blowback, 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.
  • an air gun for firing a bullet using compressed gas, and having a mechanism for performing blowback, wherein the blowback mechanism is provided with a firing chamber and a blowback chamber, being two cavities capable of 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, and the firing valve is opened by actuation of a barrel latch actuated by a trigger operation, and the blowback valve is opened by actuation of a hammer actuated by the trigger operation.
  • the blowback mechanism is provided with a firing chamber and a blowback chamber, being two cavities capable of 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, and the firing valve is opened by actuation of a barrel latch actuated by a trigger operation, and the blowback valve is opened by actuation
  • an air gun having either of the two blowback mechanisms described above, wherein the firing chamber and the blowback chamber, being two cavities, are connected by a narrow connection passage having a small volume compared to the volume of the respective cavities between two air chambers.
  • the valve for bullet firing is opened by means of actuation of a barrel latch due to actuation of the trigger
  • the valve for blowback is opened by means of impact of a hammer due to actuation of the trigger. Therefore, the respective chambers and valves operate independently and are not constrained by each other. Accordingly, factors such as extent of respective valve open areas, shortening of open time, and ease of opening etc. can be arbitrarily adjusted at the time of design, and the degree of distributing gas pressure of the compressed gas is also simplified. Adjustment of bullet speed and adjustment of blowback therefore become possible with adjustment in the design. For example, by shortening the open time of the bullet firing valve and widening the open area, substantially independently of the opening of the blowback valve, it is possible to send more compressed gas to the inner barrel, and the rate of fire of the bullets can be increased.
  • timing for bullet firing and blowback are respectively adjustable, which means that causing a blowback operation to be carried out after firing a bullet can be reliably performed in design. In this way, design and development of an air gun with further improved accuracy of fire is made easy.
  • FIG. 1 is an internal explanatory drawing, being a central cross sectional front view for describing the overall structure of an air gun having the blowback mechanism of one embodiment
  • Fig. 2 to Fig. 14 are internal explanatory drawings, being central cross sectional front views showing operation of one cycle up to bullet firing of the air gun having the blowback mechanism.
  • Fig. 15 to Fig. 18 are essential enlarged drawings of Fig. 5 to Fig. 8
  • Fig. 19 to Fig. 23 are essential enlarged view of Fig. 9 to Fig.
  • Fig. 27 is an essential enlarged internal front explanatory view of a valve body
  • Fig. 28 is a perspective view along arrow XX in Fig. 27
  • Fig. 29 is a perspective view along arrow YY in Fig. 27
  • Fig. 30 is a perspective view along arrow ZZ in Fig. 27
  • Fig. 31 is a perspective view along arrow WW in Fig. 27 , and is a horizontal cross sectional view in the vicinity of through holes.
  • the air gun of this embodiment of the invention is an automatic type air gun that fires a bullet W using gas pressure of compressed carbon dioxide, and also supplies the next bullet by blowback.
  • carbon dioxide is used as the compressed gas, but it is also possible to operate using another compressed gas such as compressed nitrogen gas or compressed air.
  • the compressed carbon dioxide will be referred to as compressed gas.
  • a frame (handle section) 2 is provided at a gun rear end lower part of the air gun body 1.
  • a gas canister A which is a compressed gas source for supplying compressed gas, is interchangeably housed inside the frame 2.
  • the compressed gas source it is also possible to provide a pressurized reservoir inside the frame 2, besides a pressurized canister such as the gas canister A.
  • the gas canister A is inserted from a side surface of the frame 2, and by pressing upwards using a press screw B is opened by a lower tip end of a gas supply port C, that will be described later, and compressed gas is supplied from the gas supply port C.
  • This embodiment is configured so that the gas canister A of compressed gas is housed inside the frame 2, but it is also possible to have a structure where the gas canister is housed outside the frame 2, or where compressed gas is supplied to the air gun body 1 using a hose or the like from a gas canister fitted by the user.
  • the main structural components of the air gun of this invention are a gun body 1 having a frame 2 (grip section) at a rear part, an inner barrel 5, which is a ballistic path, an outer barrel 4 provided outside the inner barrel 5, a slide 3 capable of sliding parallel to the outer barrel 4, a cylinder 33 fixed to a gun rear end side inner section of the slide 3, a hit pin 32 provided projecting from a hollow inner part of the cylinder 33 to the gun rear side and slidable in the muzzle direction, a hammer 20 capable of pushing the hit pin as a result of operation of a trigger 14, a valve body 24 provided between a chamber 11 and the cylinder 33, a bullet firing air chamber 25a and a blowback air chamber 25b provided as two hollow sections inside the valve body 24, a bullet firing valve 26 provided in the bullet firing air chamber 25b, a blowback valve 29 provided in the blowback air chamber 25b, and a barrel latch 9 actuated by the trigger 14.
  • Reference numeral 22 is a magazine, which can be attached and removed to and from
  • the slide 3 is capable of sliding along the outer barrel 4. This slide 3 is urged to the muzzle side by the tension of a recoil spring 13.
  • the outer barrel 4 and the inner barrel 5 are both cylindrical.
  • the inner barrel 5 is a ballistic path, and is provided at an inner part of the outer barrel 4.
  • a box-shaped barrel housing 8 having a hollow inner section is provided in the vicinity of a central section, in the longitudinal direction, of the inner barrel, as shown in Fig. 24 to Fig. 26 , capable of sliding on an outer surface of the inner barrel 5, and is urged to the rear by a barrel spring 6.
  • a barrel latch 9 is provided on the barrel housing 8 so as to be capable of rotation relative to the barrel housing 8 with the rotation shaft 9C as a center.
  • the barrel latch 9 is provided in the same shape on both sides of the barrel housing 8 and the inner barrel 5.
  • a barrel spring washer 7 is provided at a muzzle side of the barrel housing 8, and is provided in contact with a gun rear end surface of the barrel spring 6.
  • the barrel spring 6 and the barrel spring washer 7 are provided capable of sliding between a muzzle side tip end of the inner barrel 6 and a muzzle side surface of the barrel housing 8.
  • the barrel spring washer 7 has a lower part formed as a frame engagement section 7a, and rearward movement is stopped by the frame engagement section 7a coming into contact with a barrel spring washer retreat prevention section 2b provided on the frame 2.
  • the barrel latch 9 has a lower part urged to the muzzle side inside the barrel housing 8 by the barrel latch spring 10, and as a result a gun rear end side is urged downwards from the rotation shaft 9C.
  • a barrel housing engagement section 9b formed at a gun rear end side of the barrel latch 9 is engaged by contact with a barrel latch engagement section 8a of the barrel housing 8.
  • a trigger contact section 9a formed on a gun rear end side of the barrel latch 9 and an upper tip section 14b of the trigger 14 have a function of engaging and disengaging with operation of the trigger 14.
  • the barrel body 24 is fixed to the frame 2, and is provided between the muzzle side chamber 11 and the gun rear side cylinder 33.
  • a bullet firing air chamber 25a and a blowback air chamber 25b that are two hollow sections capable of holding compresses gas in an air-tight manner, are provided inside the valve body 24.
  • the bullet firing air chamber and the blowback air chamber are separated by a separating wall 25c, and connected by a microscopic connecting passage 25d having a small area compared to the area of the respective hollow sections between the two air chambers.
  • the bullet firing air chamber 25a is provided at a nozzle side, while the blowback air chamber 25b is provided at a gun rear side.
  • gas inside the gas canister A flows into the bullet firing air chamber 25a from a gas passage A1 in the lower part of the valve body 24 due to gas pressure inside the gas canister A, passes through the microscopic passage 25d provided in the separating wall 25c and also flows to the blowback air chamber 25b.
  • gas inside the gas canister A initially flows to the blowback air chamber 25b from a gas passage A1 in the lower part of the valve body 24 due to gas pressure inside the gas canister A, then passes through the microscopic passage 25d provided in the separating wall 25c and flows to the bullet firing air chamber 25a.
  • the bullet firing chamber 25a and the blowback chamber 25b are constructed as independent hollow sections that are not connected to each other, and respectively have connecting passages A1 connecting to independent gas canisters A.
  • a through hole is formed in a muzzle side wall surface of the bullet firing air chamber 25a, and a bullet firing valve 26 is slidably provided in this through hole.
  • the bullet firing valve 26 is a cylindrical shape with a gun rear end surface closed and a nozzle side end surface open, with the inside of the cylinder being provided as a gas passage 25d inside the bullet firing valve, and a firing valve opening section 26c provided at a gun rear side lower surface.
  • the bullet firing valve 26 is urged to the muzzle side by tension of a bullet firing valve spring 28 provided inside the bullet firing air chamber 25a, and is provided capable of sliding in the through hole.
  • a bullet firing valve large diameter section 26b having a large cylindrical diameter is formed on the outer peripheral surface of the bullet firing valve 26 at a central section in the longitudinal direction.
  • a muzzle side tip end of the bullet firing valve 26 is provided with a bullet firing valve small diameter section 26a having a cylindrical diameter that is smaller than the bullet firing valve large diameter section 26b.
  • the bullet firing valve small diameter section 26a is capable of being fitted into a gun rear end side inner diameter of the inner barrel 5.
  • a gun rear end side of the bullet firing valve 26 is fitted into the bullet firing air chamber 25a, and a large diameter bullet firing valve flange section 26e is formed inside the bullet firing air chamber 25a.
  • a bullet firing valve packing 27 is attached to a muzzle side wall surface of the bullet firing air chamber 25a.
  • the bullet firing air chamber 25a is urged to the muzzle side by tension of the bullet firing valve spring 28, with the bullet firing valve flange section 26e pressing the bullet firing valve packing 27 to the muzzle side to effect sealing, and at the same time, in this state, the bullet firing valve opening section 26c is sealed by the bullet firing valve packing 27. As a result, the bullet firing air chamber 25a is kept air-tight inside.
  • a through hole is formed in a gun rear end side wall surface of the blowback air chamber 25b, and a blowback valve 29 is slidably provided in this through hole.
  • the blowback valve 29 is a cylindrical shape with a gun rear end surface open and a nozzle side end surface closed, with the inside of the cylinder being provided as a gas passage 29b inside the blowback valve, and a blowback valve opening section 29a is provided at a muzzle end side lower surface.
  • the blowback valve 29 has a muzzle end section fitted inside the blowback air chamber 25b, and a large diameter blowback valve flange section 29c is formed at an outer peripheral section of the blowback valve 29.
  • the blowback valve 29 is urged to the gun rear end side by tension of the blowback valve spring 31 provided inside the blowback air chamber 25b.
  • a blowback valve packing 30 is attached to a gun rear end side wall surface of the blowback air chamber 25b.
  • the blowback valve flange section 29c is pressed to the gun rear end side by the urging force of the blowback valve spring 31, and brought into close contact with the blowback valve packing 30, and at the same time, in this state the blowback valve opening section 29a is made airtight by the blowback valve packing 30.
  • the blowback air chamber 25b is kept air-tight inside.
  • a rear end section of the blowback valve 29 is provided either separated from or in contact with a position where it can contact the hit pin 32.
  • the cylinder 33 is provided capable of sliding integrally with the slide 3.
  • the cylinder 33 is cylindrical, with a rear side wall 330 provided at a gun rear end side, and an inner side wall of the cylinder 33 is constructed as a cylinder pressure surface 33a.
  • a pin hole 331 is provided on the rear side wall 330, and a hit pin 32 is provided capable of sliding in the pin hole 331.
  • a rear section of the valve body 24 is fitted inside the cylinder 33.
  • the bullet firing valve opening section 26c formed in the bullet firing valve 26 is opened and it becomes possible for gas that has been filled into the bullet firing air chamber 25a from the gas canister A to flow from the opening section through the gas passage 26d inside the bullet firing valve to the inside of the inner barrel 5.
  • blowback valve 29 when the blowback valve 29 is slid to the muzzle side against the urging of the blowback valve spring 31, the blowback valve opening section formed in the blowback valve 29 is opened, gas that has been filled into the blowback air chamber 25b flows from the opening section through the gas passage 29b inside the blowback valve 29 to the inner gap of the cylinder 33, and it becomes possible for the cylinder pressure surface 33a, which is a gun rear end side inner surface of the cylinder 33, to be pushed.
  • the hammer 20 is urged to the muzzle side by the hammer spring 21, and is positioned inside the gun body 1 so as to be capable of rotation about the hammer rotation shaft 20b as a rotational center.
  • a shear locking section 20a is provided on the hammer 20, and it is possible to lock the hammer 20 in a state rotated to the gun rear end side.
  • a shear 18 is urged to the gun rear end side by the shear spring 19, and is provided inside the gun body 1 so as to be capable of rotation about a shear rotation shaft 18c as a rotational center.
  • a hammer locking section 18a is provided for locking the hammer 20 in the rotated state when the hammer 20 is rotated to the gun rear end side.
  • a trigger engagement lug section 18b capable of engaging with a shear engagement lug section 16c of the trigger 16 is provided on an upper end of the shear 18.
  • the trigger 14 is provided in the gun body 1 capable of rotation about the trigger shaft 14a as a center of rotation.
  • the trigger shaft 16a is fitted into the trigger 14, and a trigger bar 16 is linked to the trigger 14.
  • the trigger 14 is constructed so that an upper end thereof is urged to the gun rear end side by a trigger spring 15.
  • the trigger bar 16 is positioned so that the rear is capable of rotation about the trigger bar shaft 16a as a center of rotation, and is urged upwards by a trigger bar spring 17.
  • a magazine 22 is case-shaped, and removably provided inside the frame 2.
  • a plurality of bullets W are loaded inside the magazine 22.
  • a magazine spring 23 is provided inside the magazine 22, and the bullets W are constantly urged upwards by this magazine spring 23. If the magazine 22 is fitted into the frame 2, a bullet W comes into contact with a rear end peripheral lower surface part of the inner barrel 5 and is locked. If the inner barrel 5 is moved to the muzzle side, the bullet W is moved upwards by the urging of the magazine spring 23 and placed inside the chamber 11.
  • the chamber 11 is cylindrical, positioned at the muzzle side of the valve body 24, and has a rear end surface that contacts the muzzle side surface of the valve body 24, with the inner barrel 5 and the bullet firing valve 26 respectively fitted inside the cylinder of the chamber 11 capable of sliding.
  • Fig. 2 to Fig. 14 which are internal front explanatory views
  • Fig. 15 to Fig. 18 which are essential enlarged internal front explanatory views showing the bullet firing air chamber and operation of the bullet firing valve
  • Fig. 19 to Fig. 23 which are essential enlarged internal explanatory views showing the blowback air chamber and operation of the blowback valve
  • Fig. 24 to Fig. 26 showing the barrel housing and a relationship between the barrel latch and the inner barrel.
  • Fig. 2 and Fig. 3 show a state when the user slides the slide 3 to the gun rear end side with their hand.
  • the cylinder 33 that is integrally provided in the slide 3 is also lowered to the gun rear end side. If this is done, the hammer 20 comes into contact with the rear lower surface 33b of the cylinder 33, and starts rotating towards the gun rear end side about the hammer rotation shaft 20b.
  • a slide backward movement prevention section 2a is provided in the frame 2. Movement of the slide 3 towards the gun rear end side is stopped by the muzzle side lower tip section 3b of the slide 3 coming into contact with this side backward movement prevention section 2a (refer to Fig. 3 ).
  • Fig. 4 will now be explained. If the backwardly moved slide 3 is manually separated from the hand, the slide 3 moves to the muzzle side under tension of the recoil spring 13.
  • the cylinder 33 also moves to the rear together with the slide 3, and moves to the muzzle side together with the slide 3. This movement of the slide causes a rear section of the valve body 24 to be inserted into the cylinder 33, and is stopped by contact between a gun rear end side wall surface inside the cylinder 33 and a gun rear end side wall surface of the valve body 24.
  • the hammer 20 starts rotating toward the muzzle side due to the urging of the hammer spring 21, but the shear locking section 20a of the hammer 20 comes into contact with the hammer locking section 18a of the shear 18 to stop the rotation of the hammer 20, and the hammer and the shear are locked.
  • Fig. 5 and Fig 15 will be described.
  • the trigger 14 is manually pulled to the gun rear end side. If this is done, the trigger 14 rotates about the trigger shaft 14a, and an upper tip end section 14b of the trigger 14 contacts and presses a trigger contact section 9a of the barrel latch 9. Together with this action, the barrel housing 8 pushes the barrel spring washer 7 to the muzzle side. The barrel spring washer 7 compresses the barrel spring 6 while moving to the muzzle side. At the same time, the inner barrel 5 and the barrel housing 8 also move to the muzzle side.
  • Fig. 6 and Fig 16 will be described. If the trigger 14 is pulled further to the gun rear end side, an upper tip end section of the trigger 14 moves away from the trigger contact section 9a of the barrel latch 9, and contact between the trigger 14 and the barrel latch 9 is released.
  • Fig. 7 and Fig 17 will be described.
  • the barrel spring 6 moves, under its own urging force, to push the barrel spring washer 7 to the gun rear end side.
  • Urging force of the barrel spring 6 causes the inner barrel 5 and the barrel housing 8 to move integrally to the gun rear end side by means of the barrel spring washer 7. If the inner barrel 5 is moved further to the gun rear end side, a bullet W loaded inside the chamber 11 is inserted into the bore from a gun rear end of the inner barrel 5. At the same time, the next bullet W inside the magazine 22 contacts the rear end outer peripheral surface of the inner barrel 5 and stops.
  • Fig. 8 and Fig 18 will be described. From the state of Fig. 7 and Fig 17 , by moving the inner barrel 5 further to the gun rear end side, the barrel spring washer 7 has rearward movement towards the gun rear end side stopped by a frame engagement section 7a formed on a lower part of the barrel spring washer 7 coming into contact with a barrel spring washer rearward movement prevention section 2b formed inside the frame 2. Regardless of rearward movement prevention of the barrel spring washer 7, the inner barrel 5 and the barrel housing 8 continue to move to the gun rear end side because of inertial force of movement due to their own weight, and so the barrel spring washer 7 and the barrel housing 8 move apart.
  • Fig. 9 and Fig 19 will be described.
  • the bullet W is fired by gas pressure of gas that has flowed into the gun rear end of the inner barrel that is inserted into the chamber 11. If the trigger 14 is pulled further to the rear, as shown in Fig. 9 , the trigger bar 16 that is linked to the trigger 14 moves forward. If this happens, a shear engagement lug section 16c provided on the trigger bar 16 moves forward, and comes into contact with a trigger bar engagement lug section 18b of the shear 18. As a result of this, the shear 18 rotates to the muzzle side about the shear shaft 18c as a center of rotation, while overcoming the urging force of the shear spring 19.
  • the hammer engagement section 18a of the shear 18 is inclined to the muzzle side, and therefore engagement between the hammer engagement section 18a of the shear 18 and the shear engagement section 20a of the hammer 20 is removed, and the hammer 20 starts to rotate in an anti-clockwise direction due to the urging force of the hammer spring 21.
  • Fig. 10 and Fig 20 will be described.
  • the hammer 20 rotates in an anti-clockwise direction, passes through a pin hole 331 in the rear end surface 330 of the cylinder 33, and hits a rear end surface of the hit pin 32 projecting from the cylinder 33.
  • the hit pin 32 moves to the muzzle side, and the blowback valve 29 in contact with the hit pin 32 is caused to move to the muzzle side against the urging force of the blowback valve spring 31.
  • blowback valve flange section 29c is separated from the blowback valve packing 30 by the forward movement of the blowback valve 29 towards the muzzle side, and together with this the blowback valve opening section 29a is also separated from the blowback valve packing 30 thus releasing the airtight state, and opening to the inside of the blowback air chamber 25b.
  • gas inside the blowback air chamber 25b passes from the blowback valve opening 29a through the gas passage 29b inside the blowback valve and flows out to a clearance of the cylinder pressure surface 33a that exists at a gun rear end side of the cylinder 33, and as a result of the cylinder pressure surface 33a pressing backwards the cylinder 33 and the slide 3 integrally provided with the cylinder 33 start to move backwards to the gun rear end side.
  • the bullet firing valve 26 slides to the muzzle side under the urging force of the bullet firing valve spring 28 that has been compressed, and the bullet firing valve large diameter section 26b presses the gun rear end of the inner barrel 5 it is in contact with to the muzzle side. Together with this, a bullet firing valve flange section 26e of the bullet firing valve 26 comes into contact with the bullet firing valve packing 27 of the bullet firing air chamber 25a, and the bullet firing valve opening section is closed by the bullet firing valve packing 27.
  • This state is the same as the state shown in Fig. 1 , so flow of gas from the bullet firing air chamber 25a is stopped, and the bullet firing air chamber 25a is put in an airtight state.
  • Fig. 11 and Fig 21 will be described.
  • the slider 3 and the cylinder 33 continue to move further rearwards against the urging force of the recoil spring 13, because gas inside the blowback air chamber 25b continues to gush into the cylinder 33.
  • the hammer 20 is rotated about the hammer rotation shaft 20b clockwise towards the gun rear end side.
  • the engagement lug section 16b of the trigger bar 16 slides on an inclined surface inside a disconnect indent 3a of the slide 3, to be pressed downwards in the gun.
  • engagement between the trigger engagement lug section 18b of the shear 18 and the shear engagement lug section 16c of the trigger 16 is broken.
  • the shear 18 rotates clockwise (to the hammer 20 side) about the shear shaft 18c under the urging force of the shear spring 19, and returns to a position engaged with the hammer 20.
  • blowback valve 29 slides to the gun rear end side due to the resilience of the compressed blowback valve spring 31.
  • the blowback valve 29 has the blowback valve flange section 29c coming into contact with the blowback valve packing 30 of the blowback air chamber 25b, and at the same time the blowback valve opening section 29a is closed up by the blowback valve packing 30.
  • This state is the same as the state shown in Fig. 1 , so outflow of gas from the blowback air chamber 25b is stopped, and the blowback air chamber 25b is put in an airtight state.
  • Fig. 13 and Fig 23 will be described.
  • the slide 3 starts to slide forwards towards the muzzle side under the urging force of the recoil spring 13. This forward movement causes a rear section of the valve body 24 to be inserted into the cylinder 33, and is stopped by contact between a cylinder pressure surface 33a inside the cylinder 33 and a gun rear end surface of the valve body 24.
  • the hammer 20 starts rotating in an anti-clockwise direction about the hammer shaft 20b due to the urging force of the hammer spring 21, but the shear locking section 20a of the hammer 20 comes into contact with the hammer locking section 18a of the shear 18 to stop the rotation of the hammer 20, and the hammer and the shear 18 are locked.
  • Fig. 14 will be explained. If, from the state of Fig. 13 , the user takes their finger off the trigger 14, the trigger 14 is returned to its original position (state of Fig. 1 ) by rotating in a clockwise direction about the trigger shaft 14a due to the urging force of the trigger spring 15.
  • the barrel latch 9 is then pushed up by the upper tip section 14b of the trigger 14 due to the movement of the trigger 14 returning to the original position. After that, at the point in time where the barrel housing engagement section 9b of the barrel latch 9 comes into contact with the barrel latch engagement section 8a of the barrel housing 8, the barrel latch 9 is locked.
  • Fig. 14 is the same state as Fig. 4 .
  • Fig. 14 is the same state as Fig. 4 .
  • the present invention is used as an air gun having a blowback function.
EP20060027082 2006-12-29 2006-12-29 Druckluftwaffe Active EP1939576B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE200660015212 DE602006015212D1 (de) 2006-12-29 2006-12-29 Druckluftwaffe
EP20060027082 EP1939576B1 (de) 2006-12-29 2006-12-29 Druckluftwaffe

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EP20060027082 EP1939576B1 (de) 2006-12-29 2006-12-29 Druckluftwaffe

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EP1939576A1 true EP1939576A1 (de) 2008-07-02
EP1939576B1 EP1939576B1 (de) 2010-06-30

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2103894A1 (de) * 2008-03-21 2009-09-23 Maruzen Company Limited Luftgewehr und Magazin für Luftgewehr
EP2151660A1 (de) 2008-08-08 2010-02-10 Maruzen Company Limited Luftgewehr mit Rückstoßmechanismus
US7766000B2 (en) 2008-08-05 2010-08-03 Maruzen Company Limited Air gun with a blowback mechanism
EP2631588A1 (de) * 2012-02-27 2013-08-28 Pardini Armi Srl Druckgaswaffe mit Feuerimpulsausgleichsvorrichtung
EP3674650A1 (de) * 2018-12-28 2020-07-01 Maruzen Company Limited Vorrichtung zum anbringen und lösen eines verschlusses für eine spielzeugpistole

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CN205505851U (zh) * 2016-01-15 2016-08-24 中山市新山禾技术服务有限公司 一种新型气压式气枪

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EP0928945A2 (de) 1998-01-08 1999-07-14 Western Arms Luftdruckwaffe mit einem Geschosszuführmechanismus
US6026797A (en) * 1998-09-25 2000-02-22 Maruzen Company Limited Air gun
EP1103778A1 (de) * 1999-06-07 2001-05-30 Maruzen Company Limited Automatische luftdruckwaffe
US20030230296A1 (en) * 2002-06-14 2003-12-18 Farrell Kenneth R. Pneumatic gun recock flow control
EP1503166A1 (de) * 2003-07-29 2005-02-02 Western Arms Gasdruckspielzeugwaffe

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EP0928945A2 (de) 1998-01-08 1999-07-14 Western Arms Luftdruckwaffe mit einem Geschosszuführmechanismus
US6026797A (en) * 1998-09-25 2000-02-22 Maruzen Company Limited Air gun
EP1103778A1 (de) * 1999-06-07 2001-05-30 Maruzen Company Limited Automatische luftdruckwaffe
US20030230296A1 (en) * 2002-06-14 2003-12-18 Farrell Kenneth R. Pneumatic gun recock flow control
EP1503166A1 (de) * 2003-07-29 2005-02-02 Western Arms Gasdruckspielzeugwaffe

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2103894A1 (de) * 2008-03-21 2009-09-23 Maruzen Company Limited Luftgewehr und Magazin für Luftgewehr
US8127755B2 (en) 2008-03-21 2012-03-06 Maruzen Company Limited Air gun and magazine for air gun
US7766000B2 (en) 2008-08-05 2010-08-03 Maruzen Company Limited Air gun with a blowback mechanism
EP2151660A1 (de) 2008-08-08 2010-02-10 Maruzen Company Limited Luftgewehr mit Rückstoßmechanismus
EP2631588A1 (de) * 2012-02-27 2013-08-28 Pardini Armi Srl Druckgaswaffe mit Feuerimpulsausgleichsvorrichtung
ITLU20120004A1 (it) * 2012-02-27 2013-08-28 Pardini Armi Srl Arma a gas compresso con dispositivo di compensazione dell'impulso di sparo
EP3674650A1 (de) * 2018-12-28 2020-07-01 Maruzen Company Limited Vorrichtung zum anbringen und lösen eines verschlusses für eine spielzeugpistole
US10866058B2 (en) 2018-12-28 2020-12-15 Maruzen Company Limited Device for attachment-detachment of slide for toy gun

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EP1939576B1 (de) 2010-06-30

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