EP2631588A1 - Druckgaswaffe mit Feuerimpulsausgleichsvorrichtung - Google Patents

Druckgaswaffe mit Feuerimpulsausgleichsvorrichtung Download PDF

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Publication number
EP2631588A1
EP2631588A1 EP13156817.2A EP13156817A EP2631588A1 EP 2631588 A1 EP2631588 A1 EP 2631588A1 EP 13156817 A EP13156817 A EP 13156817A EP 2631588 A1 EP2631588 A1 EP 2631588A1
Authority
EP
European Patent Office
Prior art keywords
compressed gas
mass
projectile
compensation device
firing
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
EP13156817.2A
Other languages
English (en)
French (fr)
Other versions
EP2631588B1 (de
Inventor
Giovanni Pietro Pardini
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.)
Pardini Armi Srl
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Pardini Armi Srl
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Filing date
Publication date
Application filed by Pardini Armi Srl filed Critical Pardini Armi Srl
Publication of EP2631588A1 publication Critical patent/EP2631588A1/de
Application granted granted Critical
Publication of EP2631588B1 publication Critical patent/EP2631588B1/de
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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
    • F41B11/721—Valves; Arrangement of valves for controlling gas pressure for both firing the projectile and for loading or feeding
    • 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
    • F41B11/60—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas
    • F41B11/64—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot
    • F41B11/642—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated
    • F41B11/644—Compressed-gas guns, e.g. air guns; Steam guns characterised by the supply of compressed gas having a piston effecting a compressor stroke during the firing of each shot the piston being spring operated having an additional slidable mass moving in the opposite direction to the piston, e.g. for recoil reduction

Definitions

  • the invention relates to the sector of sport guns.
  • the invention relates to a compressed gas gun with firing impulse compensation device.
  • the push to launch the projectile is obtained by compressing a gas, which can be air or a different gas, such as carbon dioxide.
  • Compression of the gas can take place at the time of firing, or prior to firing, and in this case pulling the trigger causes its sudden expansion, with consequent firing of the projectile.
  • the firing impulse is the movement made by a weapon at the moment in which a projectile is hurled or exploded, and usually creates unwanted effects for the shooter, also jeopardising the precision of the shot.
  • recoil occurs at the moment in which the action of the force which pushes the projectile starts.
  • the compressed gas which is released when the trigger is pressed can only expand horizontally, it pushes the projectile forwards and the breech, and consequently the weapon, backwards.
  • the patent DE 102009011718 A1 discloses a firing impulse compensation system comprising a compensation mass which acts pushed in a direction opposite to that of the fired projectile, balancing the forces acting on the weapon.
  • said compensation mass is kept in an initial position by retaining means comprising a magnet and the magnetic contact produced is then broken by the pushing action of a portion of compressed gas released when the trigger is pressed, which acts, at least indirectly, on said mass.
  • Said portion of compressed gas flows into a connection duct which places the barrel of the gun in communication with the compensation mass.
  • a firing impulse compensation device of this type has an evident drawback: the push of the compensation mass is entrusted to additional mechanical elements which are difficult to calibrate, such as the coil spring, also causing an increase in the weight of the gun, an addition of components which can also be subject to wear and interact with difficulty with one another, also causing friction.
  • the elasticity of said spring can vary over time, jeopardising the efficacy of the device.
  • the efficacy of the absorbing effect of the firing impulse has the disadvantage of depending also on parameters correlated to the projectile used, such as weight, calibre, shape, and on characteristics of the weapon, such as dominating compression, barrel wear, as well as opening time of the discharge valve of the compressed gas.
  • Optimal setting of the gun, and therefore also of the firing impulse compensation device is therefore extremely difficult and necessarily subject to be varied in time, making it necessary to disassemble and reassemble the weapon, without it being possible to check the new calibration until the weapon is once again completely reassembled.
  • the invention intends to overcome these limits, by producing a compressed gas gun provided with firing impulse compensation device which can be easily adjusted and calibrated in time, is effective, light, precise, which is not subject to wear and which does not cause losses of load of the compressed gas.
  • a compressed gas gun with firing impulse compensation device comprising:
  • said adjustment means are arranged along said connection duct to modify the section thereof.
  • said adjustment means comprise a screw provided with a threaded portion and a smooth end needle, where the reversible tightening of said screw causes a greater or lesser penetration of said needle into said duct.
  • said retaining means comprise a toroidal gasket made of elastic material and a perforated flange provided with a rim for housing said gasket suitable for retaining said compensation mass in the initial position by interference.
  • said compensation mass at its end facing towards said barrel, comprises a groove suitable for cooperating with said gasket by interference.
  • said perforated flange has a section at least partly of frustoconical shape, with a flaring increasing towards said compensation mass.
  • said compensation mass released from the retaining means, is pushed inertially, due to the effect of the impulse of the compressed gas only, into a tubular guide.
  • a compressed gas gun provided with firing impulse compensation device according to the invention has many advantages.
  • the push of the compensation mass is entrusted entirely to the pressing force of the compressed gas which not only releases this mass from said retaining means, but can be suitably metered also to ensure that the mass moves away in a direction opposite to the projectile.
  • the quantity of compressed gas suitable for releasing and moving said mass can, in fact, be calibrated by means of specific adjustment means that are advantageously accessible from the outside of the gun and which therefore make it possible for the gun to be constantly adjusted, without the need to disassemble and reassemble it.
  • the user of the gun by acting on said adjustment means, can modify the quantity of compressed gas acting on the compensation mass, to take account of a variety of disturbing environmental factors or wear factors which may occur and which can interfere with the firing precision and with the efficacy of the firing impulse compensation device.
  • Adjustment advantageously takes place promptly and precisely, also due to the type of screw selected: by modifying the section of the connection duct with the smooth end needle, this ensures a micrometric modification of the area of said duct, due to the pitch of the thread of the screw.
  • the flange is provided with a frustoconical shaped flaring. This design choice increases the pushing surface on which the gas acts, thus making increasingly small quantities of gas necessary for the release and movement of said mass, being said quantities of gas well directed.
  • FIG. 1 With reference to Fig. 1 , there is shown a compressed gas gun 1 with firing impulse compensation device 2 according to the invention.
  • Said gun 1 substantially comprises:
  • a firing impulse compensation device 2 is mounted on said gun 1.
  • said device 2 comprises a compensation mass 6, cylindrical in shape, which slides inside a specific tubular guide 11, arranged on the weapon 1 on the opposite side with respect to said barrel 4 and aligned along its longitudinal axis x.
  • Said retaining means comprise a toroidal gasket 9 made of elastic material, of known O-Ring type, and a perforated flange 10.
  • said flange 10 is provided with a rim 12 for housing said gasket 9.
  • Said gasket 9 is suitable for retaining, by interference, said compensation mass 6 which is provided, in its end facing towards said barrel 4, with a groove 13 to contain said gasket 9.
  • connection duct 7 is arranged between said barrel 4 and said guide 11, aligned along said longitudinal axis x, having a capillary section if placed in relation to the diameters of said barrel 4 and of said guide 11.
  • connection duct 7 is suitable for enabling the passage of a metered quantity of compressed gas, coming from said reservoir 3 and released by means of said firing mechanisms, towards said compensation mass 6.
  • Said flange 10, interposed between said guide 11 and said connection duct 7, is suitably perforated to also enable the passage of said gas.
  • the hole of said flange has a section at least partially of frustoconical shape, with a flaring with increasing section facing towards said compensation mass.
  • adjustment means are arranged along said connection duct 7, orthogonally to its axis x, said adjustment means being suitable for modifying the dimension of the section of said connection duct.
  • Said adjustment means comprise a screw 8 suitable for cooperating with a micrometric thread obtained in a seat 7'.
  • said screw 8 is provided with a threaded portion 8' cylindrical in shape and headless, and with a smooth end needle 8", suitable for sliding in a specific seat 7" obtained in said duct 7.
  • Tightening or loosening of said screw 8 which can be obtained by means of a hexagonal key acting directly from the outside of the gun, respectively causes a greater ( Fig. 4 ) or lesser ( Fig. 5 ) penetration of said needle 8" into said duct 7 and therefore a narrowing or widening of its free section.
  • the user acts on the adjustment means, tightening or loosening the corresponding screw 8 to decrease or increase the section of the connection duct 7 for passage of the compressed gas.
  • the force of the compressed gas releases the mass 6 from the O-Ring retaining gasket.
  • the compensation mass 6 is pushed inertially, due to the effect of the impulse of the compressed gas only, and moves in the guide 11 from the initial position represented by Fig. 2 to the final position represented by Fig. 3 .
  • the air present in the guide 11 and shifted from the compensation mass 6 is discharged from the gun 1 directly from the bottom opening of said guide.
  • the user restores the interference between the compensation mass 6 and the retaining means by acting on the loading lever, to simultaneously move the guide 11, the flange 10 and the gasket 9 back towards the end portion of the gun in which the compensation mass 6 is located, so that it is once again coupled and at the same time frees the entrance of the barrel 4 for positioning of a new projectile.
  • the compensation mass 6 is moved back towards the barrel 4, i.e. to its initial position prior to firing.
  • the user also acts on the screw adjustment means 8 to vary and optimise compensation of the firing impulse for the next shot.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
EP13156817.2A 2012-02-27 2013-02-26 Druckgaswaffe mit Abschussimpulsausgleichsvorrichtung Active EP2631588B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT000004A ITLU20120004A1 (it) 2012-02-27 2012-02-27 Arma a gas compresso con dispositivo di compensazione dell'impulso di sparo

Publications (2)

Publication Number Publication Date
EP2631588A1 true EP2631588A1 (de) 2013-08-28
EP2631588B1 EP2631588B1 (de) 2017-09-27

Family

ID=45998428

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13156817.2A Active EP2631588B1 (de) 2012-02-27 2013-02-26 Druckgaswaffe mit Abschussimpulsausgleichsvorrichtung

Country Status (2)

Country Link
EP (1) EP2631588B1 (de)
IT (1) ITLU20120004A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170184372A1 (en) * 2015-12-29 2017-06-29 Xisico Usa, Inc. Device and Method of Recoil Reduction for Air Guns

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785405A2 (de) * 1996-01-19 1997-07-23 Gerätebau GmbH Gasdruckwaffe
DE19747586A1 (de) * 1997-10-28 1999-04-29 Anschuetz Gmbh J G Gasdruckwaffe
EP0922922A2 (de) * 1997-12-10 1999-06-16 Western Arms Luftdruckwaffe mit atomatischer Geschosszuführung
DE10139868A1 (de) * 2000-08-25 2002-03-07 Davorin Sonenvald Druckgasbetriebene Schusswaffe mit Rückstoßbremse
US20030230296A1 (en) * 2002-06-14 2003-12-18 Farrell Kenneth R. Pneumatic gun recock flow control
EP1939576A1 (de) * 2006-12-29 2008-07-02 Maruzen Company Limited Luftgewehr
DE102009011718A1 (de) 2009-03-04 2010-09-09 Carl Walther Gmbh Gasdruckbetriebene Schusswaffen-Vorrichtung

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0785405A2 (de) * 1996-01-19 1997-07-23 Gerätebau GmbH Gasdruckwaffe
DE19747586A1 (de) * 1997-10-28 1999-04-29 Anschuetz Gmbh J G Gasdruckwaffe
EP0922922A2 (de) * 1997-12-10 1999-06-16 Western Arms Luftdruckwaffe mit atomatischer Geschosszuführung
DE10139868A1 (de) * 2000-08-25 2002-03-07 Davorin Sonenvald Druckgasbetriebene Schusswaffe mit Rückstoßbremse
US20030230296A1 (en) * 2002-06-14 2003-12-18 Farrell Kenneth R. Pneumatic gun recock flow control
EP1939576A1 (de) * 2006-12-29 2008-07-02 Maruzen Company Limited Luftgewehr
DE102009011718A1 (de) 2009-03-04 2010-09-09 Carl Walther Gmbh Gasdruckbetriebene Schusswaffen-Vorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170184372A1 (en) * 2015-12-29 2017-06-29 Xisico Usa, Inc. Device and Method of Recoil Reduction for Air Guns
US10767959B2 (en) * 2015-12-29 2020-09-08 Xisico Usa, Inc Device and method of recoil reduction for air guns

Also Published As

Publication number Publication date
ITLU20120004A1 (it) 2013-08-28
EP2631588B1 (de) 2017-09-27

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