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EP3504501B1 - Schalldämpfervorrichtung für feuerwaffe - Google Patents

Schalldämpfervorrichtung für feuerwaffe Download PDF

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Publication number
EP3504501B1
EP3504501B1 EP17737835.3A EP17737835A EP3504501B1 EP 3504501 B1 EP3504501 B1 EP 3504501B1 EP 17737835 A EP17737835 A EP 17737835A EP 3504501 B1 EP3504501 B1 EP 3504501B1
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EP
European Patent Office
Prior art keywords
barrel
silencer device
mobile
firearm
passage
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.)
Active
Application number
EP17737835.3A
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English (en)
French (fr)
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EP3504501A1 (de
Inventor
Antonio BARCHERINI
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.)
Brevex SA
Original Assignee
Brevex SA
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 Brevex SA filed Critical Brevex SA
Priority to RS20201440A priority Critical patent/RS61121B1/sr
Priority to SM20200635T priority patent/SMT202000635T1/it
Priority to SI201730516T priority patent/SI3504501T1/sl
Priority to HRP20201908TT priority patent/HRP20201908T1/hr
Publication of EP3504501A1 publication Critical patent/EP3504501A1/de
Application granted granted Critical
Publication of EP3504501B1 publication Critical patent/EP3504501B1/de
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
    • F41A21/30—Silencers

Definitions

  • the present invention relates to a sound neutralizer device for a firearm, in particular a rifle or other long or short firearm, and a sound neutralization method for a firearm.
  • the present invention relates more specifically to a sound neutralizer for a firearm, such as a rifle or other long or short firearm.
  • the invention proposes a method of neutralizing the sound for a firearm, in particular for a rifle or another firearm when a shot is fired.
  • the invention provides a firearm, in particular a rifle, comprising an improved sound neutralizer device.
  • the publication WO 96/03612 reveals a sound moderating device for Ball Trap rifles or recreation with superimposed barrels of all calibers.
  • This firearm silencer consisting of a tubular body mounted on the gun barrel and comprising an annular expansion chamber behind said tubular body, as well as a series of internal transverse baffles supported by spacers and provided with openings allowing passage lead shot and fluff.
  • the silencer is intended to dampen noise and thus reduce noise pollution.
  • WO 2011/035111 A1 and WO 2014/000805 reveal other examples of silencer for firearm, in particular for automatic rifle or other long firearm, comprising a silencer mounted on the Parma barrel, a muzzle brake, which can be screwed to the silencer, being fixed on the barrel.
  • DE2238834 A relates to a sound neutralizer device for a firearm, in particular a rifle or other long or short firearm and a method of sound neutralization for a firearm.
  • a classic silencer or sound moderator is a device that can be added to a firearm, gas or air, to reduce the noise and the flash of light it produces when a shot is fired, and thus gain stealth .
  • the silencer generally takes the form of a cylindrical tube that can adapt to the muzzle of the barrel, and whose internal mechanism, which varies according to the ammunition used, allows the gases used to propel the gun to be relaxed. projectile, in order to attenuate as much as possible their release into the atmosphere.
  • the silencer only slows down the gas at the exit of the barrel, it does not interfere with the noise caused by the passage of the projectile in supersonic speed (speed greater than that of sound which is about 340 m / s in the air at 15 ° C) which, by passing the sound barrier, itself produces a detonation noise on its path.
  • the phenomenon is especially noticeable on high initial speed calibers such as the 5.56 mm.
  • calibers of cartridges notably for handguns, there is subsonic ammunition created specifically for use with a silencer, in order to minimize the noise of the shot.
  • a silencer is primarily a tool of comfort, as it reduces the muzzle wave of a gun.
  • This mouth wave is the cause of ENT trauma, in the area of the nose, throat and ears, which the usual means cannot protect (earplugs, shooting helmets, etc.).
  • the two main factors affecting the value of the speed of sound are the density and the elasticity constant (or compressibility) of the propagation medium:
  • the propagation of sound is all the more rapid as the density of the medium and its compressibility are small. From one medium to another, the two parameters change.
  • the compressibility of which is about equal to that of air, but whose density is, under the same conditions of temperature and pressure, much lower, the speed of sound is almost three times larger than in the air.
  • the speed of sound is much lower than in a liquid: although the density of the gas is much lower, it is almost infinitely more compressible than liquid (which is often considered incompressible) .
  • sound propagates at exactly 1,482.343 m / s in pure water at 20 ° C, approximately 340 m / s in air at 15 ° C, and about 1,500 m / s in sea water. .
  • the effectiveness of the silencers is relative: the sound reducer suppresses the muzzle wave and consequently the consequent detonation and makes the sound more diffuse while suppressing the flame at the muzzle of the weapon.
  • the term sound moderator is sometimes used; the performance of this type of device is very variable, depending on the type of reducer used by its employee and the Parma used.
  • the shot is heard less far, it is also more difficult to identify as a gunshot as well as more difficult to locate both because of the distortion of the sound and the absence of visible flame.
  • the reduction in noise intensity is of the order of 25 to 35 db in the case of an assault rifle, or 115 to 125 db (comparable to a jackhammer) instead of 150 db.
  • the classic silencers while being able to have different shapes and techniques, are despite everything quite similar to each other.They are generally sleeves that Pon fixes, either by a bayonet system or by a threaded screw thread, at the end of the barrel.
  • the diameter of the holes separating the various elements of the silencer through which the projectiles pass being much larger than the caliber, they allow part of the gases to escape towards the front of the projectile, thus disturbing the precision of the projectile and reducing its speed. 'about 4 to 6 m / s.
  • the classic silencer is expensive, difficult to maintain (to clean it, it must be completely dismantled component by component), and, for certain models of rifle, its life does not exceed 800 rounds.
  • the projectile passing the various baffles lets the gases behind it relax in the alveoli and thereby reduce the intensity of the sound wave.
  • the noise reduction depends on the size of the chambers (cells).
  • the noise normally produced by a firearm detonation is of the order of 120 to 170 db. Sudden noise or prolonged exposure to too high a sound environment (over 100 db) can cause temporary or permanent hearing impairment.
  • An object of the invention is to provide an improved sound neutralizer device for a firearm, in particular a rifle or other long or short firearm.
  • the aim of the present invention is therefore to provide a device making it possible to eliminate and completely inhibit the sound produced when a shot is fired. , by letting it run out in a natural way and thus gain in discretion.
  • the purpose of the device is to inhibit the sound wave (noise) generated by the ammunition of a firearm.
  • the sound neutralizer device for a firearm comprises the characteristics of the characterizing part of claim 1.
  • the barrel is temporarily closed just after the passage of the projectile and the combustion gases and the sound wave are redirected to an expansion vessel for its final treatment.
  • the actuation unit comprises a movable part (31) of the barrel, moved by the projectile as soon as the latter has completely passed through the flaps and extended by a rod connected to the locking ring. ordered.
  • a small part of the barrel is made mobile.
  • This part can be terminal or middle.
  • the projectile passes through the moving part (31)
  • it is pushed axially forward in the part (38) of the downstream barrel by the pressure of the gases inside the barrel.
  • the axial movement of the movable part (31) causes the shutters to close by means of the coupling of the amplitude lever arm (8) to the shutter mechanism (10) for closing.
  • the moving part will be median at least on long guns.
  • the moving part In the case where the moving part is median, it forms the seal with the part of the barrel emerging from the seats of the flaps and the end part of the barrel.
  • the inside of the barrel (in which the projectile moves) is broken down into 3 perfectly aligned parts.
  • the movable part part has a covering part and a covered part.
  • the moving part covers the barrel, and in its covered part it is covered by the final part of the barrel.
  • the length of the part of the barrel which passes through the seat of the flaps has in principle a fixed length which is equal to the length of the bullet.
  • the moving part reproduces the part of the barrel which comes out of the shutters and it in turn is covered.
  • the final part of the barrel which is grafted onto the seats of the shutters will entirely contain the moving part.
  • the final part of the barrel can be very short.
  • this final part forms the muzzle of the barrel. It is the same configuration for both bullet guns and chokes. While for bullet guns the mobile part is preferably cylindrical and quite short, for shotguns the mobile part preferably has the shapes, designs and length of a traditional choke.
  • the control mechanism comprises a guide and transmission ring adapted to slide on the barrel, the ring cooperating with the rod of the movable part of the barrel to transmit the movement to the lever arms.
  • the closing flap (s) is / are arranged in a seat placed transversely to the axis of the barrel and of predetermined length and if there are two slightly offset from each other along the axis of the barrel, so that in the closed position they partially overlap without colliding.
  • each shutter has an opening adapted to receive the end of the amplitude lever arm to transmit the pivoting movement of the amplitude lever and to actuate the shutter in a direction transverse to the axis. of the barrel.
  • the guide ring further comprises two wedge-shaped support pieces comprising an angled edge surface directed towards the flaps adapted to allow actuation of the lever arms in pivoting on the pivots and the closing of the flaps.
  • control mechanism comprises at least a first return spring associated with the guide ring so that it returns to its initial position, the gas pressure decreasing.
  • the exhaust unit further comprises an expansion vessel connected to said at least one exhaust pipe for receiving the gases conveyed by said at least one exhaust pipe, the vessel expansion chamber with vents allowing combustion gases to escape from the expansion vessel.
  • the expansion vessel comprises an internal tube connected to flaps adapted to close the openings, and in which the gases enter the expansion vessel through an opening made in the internal tube once the latter has been pushed. at the end of the stroke and thus blocked the vents and, with the pressure lowering, the inner tube returns to its initial position thanks to a return spring, thus allowing the combustion gases to escape out of the expansion tank through the vents when sound melts exhausted herself naturally.
  • the movable part of the substantially cylindrical actuating unit joins a part of the barrel which passes through the seat of the closing flaps and an end part of the barrel, and comprises a covering part and a covered part. separated by a shoulder, the covering cylindrical part being adapted to cover the part of the barrel which passes through the seat of the flaps, and the covered cylindrical part being adapted to be covered by the end part of the barrel.
  • the final part of the barrel comprises a housing comprising a first cylindrical part adapted to receive the covering part of the moving part and a second cylindrical part of a smaller diameter adapted to receive the covered part of the moving part, the first part cylindrical and the second cylindrical part of the end part being separated by a shoulder.
  • the first cylindrical part of the end part is longer than the covering cylindrical part of the movable part to allow axial movement of the movable part, the second cylindrical part of the end part being substantially of the same length as the covered cylindrical part. of the moving part.
  • the covering part of the moving part has an inside diameter corresponding to the outside diameter of the part of the barrel which passes through the seat, and has an outside diameter corresponding to the inside diameter of the first cylindrical part of the end part.
  • the movable part of the substantially cylindrical actuating unit forms the end part of the barrel and comprises a covering part and a final part separated by a shoulder, the covering cylindrical part of the movable part. being adapted to cover a part of the barrel which passes through the seat of the closing flaps, and the end part forming the muzzle of the barrel.
  • the covering part of the moving part comprises a housing comprising a cylindrical part adapted to receive the cylindrical part of the barrel which passes through the seat of the flaps and allow the axial movement of the movable part, the cylindrical part of the barrel being substantially of the same length as the covering cylindrical part of the movable part.
  • the covering part of the moving part has an inside diameter corresponding to the outside diameter of the part of the barrel which passes through the seat of the flaps.
  • the terminal movable part to the barrel forms a choke, the internal diameter of which is reduced towards the muzzle of the barrel, the covering cylindrical part covering the barrel, and the end part comprising an internal conical part of a maximum diameter equal to the internal diameter of the barrel and narrowing towards the area of the outlet of the barrel.
  • a second pair of shutters independent of the first (or a single shutter), is located at the outlet of the cartridge chamber, can be placed on automatic or semi-automatic weapons.
  • This variant using a second pair of shutters for automatic or semi-automatic weapons can be used alone for simple modification of a weapon without resorting to the sound inhibitor which, for its part, requires at least the replacement or modification of the barrel.
  • the invention provides a long or short firearm, in particular a rifle, comprising a neutralizer device of the aforementioned type in which the barrel of the firearm comprises a fixing system formed by said pivots and a seat arranged transversely to the axis of the barrel receiving said closing flap mechanism to fix the neutralizer device to the barrel in a removable manner.
  • the barrel is temporarily closed off just after the projectile has passed and the combustion gases and the sound wave are redirected to an expansion vessel for its final treatment.
  • the first sound wave is that produced by the combustion of the explosive charge.
  • the second is the famous “bang” produced by the projectile when crossing the sound barrier, which is the case for approximately 96% of ammunition. This "bang" occurring inside the barrel, is not certain but supposed, but it is on the other hand certain that it never occurs outside the barrel. To the human ear, these two sound waves are perceived as a single sound.
  • the third occurs at the exit of the projectile from the barrel, like a whip in the air. This has an intensity of 72 to 80 db and can in no way be controlled.
  • the sound wave produced by the combustion and the bang moves (at this temperature) at about 1500-1800m / s, immediate speed, while the projectile is still in acceleration phase, it does not reach its speed maximum only after about 60 cm of travel.
  • the sound wave has three properties which interest us: the first is that, when it encounters an obstacle, it bounces (echo phenomenon), the second is that it does not propagate in the empty, and the third and more interesting for the sound neutralizer device of the present invention is that it has a fleeting life. We cannot store a sound wave in any way: by preventing it from spreading it disappears.
  • the sound wave does not stick to the projectile. By striking it it bounces back towards the breech which in turn sends it forward towards the projectile. It then follows incessant back and forth between these two obstacles until the projectile exits through the muzzle of the barrel, at a variable speed, depending on the temperature of the medium in which it operates and that of the gases which convey it. . At the exit of the barrel the sound wave then propagates in the air.
  • the sound inhibitor of the present invention While a conventional silencer of the aforementioned type, also called a sound moderator, tries to mechanically reduce the latter, the sound inhibitor of the present invention, by retaining the sound for a very short time inside the barrel, leaves it to exhaust itself completely in a natural way and manages to eliminate it completely.
  • the firearm sound neutralizer device of the present invention has the advantage of weight (about 50 grams in total), cost of manufacture, and efficiency. According to the invention, the sound wave produced inside the barrel is completely annihilated, because it is retained behind the shutter (s).
  • the firearm sound neutralizer device of the present invention allows the sound wave to destroy itself naturally and mostly deals with the pressure generated by the gases. If there was no exhaust provided by an exhaust pipe, the gases would remain compressed inside the barrel, keeping the shutter (s) closed. They would relax only when the gun was opened, safe but with some inconvenience.
  • the internal volume of the barrel it has been judged preferable to increase, by one or two exhaust pipes, the internal volume of the barrel.
  • This additional volume lowers the gas pressure and allows the shutter (s) to open by the system of recoil springs and allows the gases to escape naturally forward and through the end of the escapement temporarily closed by shutters similar in size to those placed on the barrel.
  • the drop in gas pressure inside the barrel is also caused by their rapid cooling.
  • FIG 1 illustrates a sound neutralizer device for a firearm in one embodiment of the invention.
  • two closing shutters (10) are mounted transversely to the axis on the barrel of the weapon to temporarily close the barrel after the passage of a projectile and prevent the passage of combustion gases and sound probe towards the muzzle of the gun.
  • barrel (42) when a shot is fired.
  • the closing flaps (10) are arranged in a seat (37) placed transversely to the axis of the barrel and are of predetermined length and slightly offset from one another along the axis of the barrel, so that in the closed position they partially overlap. without clashing.
  • the control mechanism (6) comprises two amplitude lever arms (8) mounted on pivots (7) to allow transverse movement of the two closing shutters (10) between an open position in which the shutters (10) ensure the passage of a projectile towards the muzzle and a closed position preventing the passage of combustion gases and the sound wave after the passage of the projectile.
  • the exhaust unit (11) has two exhaust pipes (11) arranged upstream of the closing flaps (10) to redirect and allow the combustion gases and the sound wave to escape out of the barrel (42). .
  • the control mechanism (6) is positioned upstream of the flaps (10).
  • the control mechanism (6) operates the amplitude lever arms (8) which close the flaps (10), thus allowing the gases to escape through the pipes (11).
  • the flaps (10) (and their seat 37) are placed transversely to the axis of the barrel (42) and are of predetermined length and slightly offset from one another along the axis of the barrel, so that in the closed position they partially overlap without s 'clash.
  • each flap (10) has an opening adapted to receive the end of the amplitude lever arm (8) to transmit the pivoting movement of the amplitude lever (8) and actuate the flap (10) in a direction transverse to the axis of the barrel (42).
  • the element (6) of the actuating mechanism is set in motion in a direction generally parallel to the axis of the barrel (42).
  • control mechanism (6) comprises a guide ring (6) adapted to slide on the barrel and connected to the rod of the movable part of the barrel (31) to transmit the movement to the lever arms (8).
  • the guide ring (6) further comprises two base pieces arranged laterally to the axis of the barrel (42) each forming an elongated opening to receive the end of one of the lever arms (8) and comprising a surface angle guide (rectilinear or curvilinear) directed towards the shutters (10) adapted to allow actuation of the lever arms (8) in pivoting on the pivots (7) to close and open the shutters (10).
  • a surface angle guide rectilinear or curvilinear
  • the guide ring (6) comprises two wedge-shaped base pieces arranged laterally to the axis of the barrel (42) and comprising an angled ridge surface (rectilinear or curvilinear) directed towards the shutters (10) adapted to allow actuation of the lever arms (8) in pivoting on the pivots (7) to close and open the shutters (10).
  • the whole mechanism can be protected by a cover for current use and to prevent damage in use with a firearm, but it will depend on the weapon and its components. Since the cover is not essential for proper operation, it is not described in further detail.
  • the two flaps (10) close the barrel after the bullet has passed, so that the sound wave and the gases are redirected to an expansion vessel.
  • a second pair of flaps can be used to close the barrel at the base in case of automatic or semi-automatic weapons.
  • the control ring (6) is actuated by the passage of the projectile after the flaps in a small portion (31) of the barrel which is movable and connected to the control ring (6) by a rod.
  • This part (31) of the barrel (of the same caliber as the latter) is placed after the flaps (10) at a distance from them equal to the length of the body of the projectile (without its possible point).
  • This part (31) is mobile and moves about 0.5mm, which serves to close the flaps (10) immediately after the passage of the ball.
  • the proportion of the amplitude levers depends on the caliber of the weapon, the maximum being 10 for a 12 caliber single-barrel or superimposed, 20 for a juxtaposed 12 caliber (lateral), because for this weapon we are obliged to have a single shutter (10).
  • the repositioning to the normal position of the parts (31, 6, 8 and 10) is provided by a return spring (32).
  • the control mechanism (6) comprises a transmission rod and the movable part (31) comprises a coupling assembly (34-36) for setting the control ring (6) in motion.
  • All coupling (34-36) comprises a connection arm (34) fixed to the movable part (31) by a connection screw (35) and secured to the transmission rod by a bolt and nut (36).
  • the elongated opening made in the transmission rod allows the axial adjustment of the position of the rod relative to the connection arm (34) and to the movable part (31) by tightening the nut (36).
  • the transmission rod is positioned in a direction generally parallel to the axis of the barrel defining the direction of the projectile.
  • the movable part (31) is actuated axially and allows the transmission of the movement to the control mechanism (6) by coupling to the coupling assembly (34-36) and to the transmission rod .
  • the control mechanism (6) with the rod is associated with a return spring (32) arranged on a fixing anchor (33) to the barrel.
  • the axial force on the part (31) falling, the rod and the control mechanism (6) return to their initial position thanks to the return spring (32).
  • the addition is done either by screwing, welding, interlocking or by any other means.
  • the part (31), as an extension of the barrel, is mobile, its beginning being located after the flaps (10) at an exact distance corresponding to the length of the body of the projectile.
  • the projectile passing through it gives it an axial movement which activates the entire device and causes the complete and immediate closing of the shutters (10).
  • the gases and the sound wave are therefore diverted by the exhaust (11) for their treatment.
  • the projectile continues its course in the part (38) of the weapon, which is the extension of the barrel.
  • the axial force produced on the part (31) by the projectile being far greater than the needs of the device, it can be reduced either by judiciously increasing the diameter of said part (31) which is in principle of the same caliber as the barrel, either by adding a spring (not shown) around the right part of the part (31) which goes into the part (38), or both. Note that the part (31) does not hit the part (38) which receives it at the end.
  • the moving part (31) is median to the barrel.
  • This movable part (31) forms the seal with the part of the barrel (42) coming out of the seats (37) of the flaps (10) and the end part (38) of the barrel.
  • This movable part (31) is cylindrical and has an internal bore adapted to allow the passage of a ball.
  • the interior of the barrel in which the projectile moves is divided into 3 parts (42,31, 38) which must be perfectly aligned.
  • the cylindrical movable part (31) comprises a covering part and a covered part separated by a shoulder. In its covering cylindrical part, the movable part (31) covers the barrel (42), and in its covered cylindrical part it is covered by the final part (38) of the barrel.
  • the length of the part of the barrel (42) which passes through the seat (37) of the flaps (10) has a fixed length which is equal to the length of a bullet for this type of weapon. If the part of the part (31) instead of being covered were covered, then it could move back inside the part (42) and thus prevent the shutters (10) from closing properly.
  • the part (31) reproduces the part (42) which comes out of the shutters (10) and it in turn is covered.
  • the part (38) which is grafted onto the seats (37) of the shutters (10) will contain the part (31) in its entirety ( figures 2 and 5 ).
  • the final part (38) of the barrel comprises a housing comprising a first cylindrical part adapted to receive the part covering of the movable part (31) and a second cylindrical part of a smaller diameter adapted to receive the covered part of the movable part (31).
  • the first cylindrical part and the second cylindrical part of the final part (38) are separated by a shoulder.
  • the first cylindrical part of the final part (38) is longer than the covering cylindrical part of the movable part (31) to allow axial movement of the movable part (31).
  • the second cylindrical part of the final part (38) can be of the same length as the covered cylindrical part of the movable part (31).
  • the final part (38) of the barrel can be very short.
  • the covering part of the movable part (31) has an inner diameter corresponding to the outer diameter of the part of the barrel (42) which passes through the seat (37), and has an outer diameter corresponding to the inner diameter of the first cylindrical part of the final part (38).
  • the covered part of the movable part (31) has an inside diameter corresponding to the inside diameter of the part of the barrel (42) which passes through the seat (37), and has an outside diameter corresponding to the inside diameter of the second cylindrical part of the cylinder. final part (38).
  • the assembly can in particular be done so that the device (31,37,38) is incorporated into the weapon during its manufacture.
  • the seat (37) of the flaps (10) is fixed to part 38 of the weapon, which is the extension of the barrel.
  • the straight part of the moving part (31) is inserted between the seat (37) and the part 38.
  • the connecting arm (34) and the part (35) are added to the part 31 after assembly.
  • the part (38) of the device as shown in figure 1 forms the end part (38) of the barrel and comprises a part provided for the assembly to the seat (37) of the flaps (10) and to receive the moving part (31).
  • the alternative for shotguns is to use a mini-part (38) at the outer end of which we will screw a choke ( Figure 10 ) of the aforementioned type forming a constriction or constriction to be mounted on the barrel to reduce the outlet diameter, so as to increase the range of the shot and to limit the spray of shot.
  • FIGS 8 , 12 and 9 show a moving part (31) mounted in the final part of the barrel. It is the same configuration for the balls as for the chokes. While for bullet guns part (31) will be cylindrical and quite short, for shotguns part (31) will have the shapes, configurations, and length of a traditional choke ( figure 10 ).
  • the movable part (31) is terminal to the barrel.
  • This movable part (31) is mounted on the part of the barrel (42) coming out of the seats (37) of the flaps (10).
  • This mobile part (31) is cylindrical and has a bore interior adapted to allow the passage of a ball.
  • the interior of the barrel in which the projectile moves is divided into two parts (42,31) which must be perfectly aligned.
  • the cylindrical movable part (31) comprises a covering part and a final part separated by a shoulder. In its covering cylindrical part, the movable part (31) covers the barrel (42), and in its final cylindrical part it forms the muzzle of the barrel.
  • the part (31) reproduces the part (42) which comes out of the shutters (10).
  • the part (31) is grafted onto the part (42) which comes out of the shutters (10) ( figure 9 ).
  • the covering part of the movable part (31) comprises a housing comprising a cylindrical part adapted to receive the cylindrical part of the final part (42) of the barrel and allow the axial movement of the movable part (31).
  • the cylindrical part of the final part (42) can be of the same length as the covering cylindrical part of the movable part (31).
  • the final part (38) of the barrel can be very short.
  • the covering part of the movable part (31) has an inside diameter corresponding to the outside diameter of the part of the barrel (42) which passes through the seat (37).
  • the specific dimensions recommended for the device added to the existing weapon may be as follows:
  • the mobile part (31) is terminal to the barrel and forms a choke used in particular for shotguns, the choke forming a passage for the lead, which extends in the extension of the barrel and whose internal diameter is reduced to direction of the muzzle.
  • the cylindrical movable part (31) comprises a covering part and a final part separated by a shoulder.
  • the movable part (31) covers the barrel (42), and in its final part forming the muzzle of the barrel it comprises a conical part having a maximum diameter equal to the internal diameter of the barrel and narrowing towards the area of the outlet.
  • the resistance of the part (31) to axial movement can be reinforced with return springs (40) interposed between an element (41) of the part (31) and a rod (39) fixed to the seat (37) of the flaps (10) to allow the part (31) to resist axial movement and regain its initial position.
  • the version of the figure 11 is similar to Figures 8 , 12 , 9 and presents a reinforced version of the part (31) in the final position.
  • the bullet length of shotguns roughly matches the length of the wad. This depends on the ammunition used and the length of the gun chamber. The length of the latter is 68mm (almost obsolete), 70mm, 76mm and 82mm.
  • the length of a skirted wad for a 70mm ammunition is approximately 40mm. Part 6 provides an adjustment for adaptation.
  • an expansion vessel with timer (22-27) is associated with the exhaust pipes (21) for the treatment of the recovered gases and the inhibition of the sound wave.
  • Other solutions are possible.
  • the expansion tank (27) is coupled to the exhaust pipes (21) and comprises an internal axis (23) driven by the gas pressure to redirect these gases.
  • the expansion vessel 27 receives the gases conveyed by the recovery pipes (21) which enter the expansion vessel 20 27 through the opening (22) made on the axis (23) once the latter has been pushed to the end of the stroke and thus have closed the openings (24).
  • a pressure relief valve (25) is present (but could be replaced by small holes). As the pressure drops, the axis returns to its initial position thanks to the return spring (26) and the gases are discharged through the vents (24).
  • the final aim of the device achieved by the invention described here is the inhibition of the sound wave produced by the firing of the ammunition (rifle shot).
  • This shutter intended to inhibit the sound wave produced by the firing of the ammunition (gun shot) prevents the escape of combustion gases and sound waves through the muzzle by deflecting them towards a treatment area adequate, while leaving intact the prerogatives specific to ammunition (speed, precision).
  • the motricity of the device is ensured only by the passage of the ball in the part (31) which is mobile (displacement of the order of a maximum of one millimeter).
  • the section of the barrel is very slightly smaller than the caliber of the bullet, this to ensure a lateral seal so as to make the best use of the gas pressure.
  • the ball traveling from left to right in relation to the drawings - eg. Fig. 2 ) as soon as it has crossed the level of the flaps (10) to its full length, enters the movable part of the barrel (31) giving it an axial forward movement.
  • the moving part (31) actuates the control ring (6) which, also moving from left to right, closes the shutter (s) (10) by means of the lever arms (8).
  • the gases and the sound wave are thus deflected by the exhaust (s) (11).
  • the parts (31, 6, 8 and 10) return to the initial position thanks to the return spring (32).
  • the device is incorporated into the barrel during its manufacture (in which case the device is located well before the muzzle of the barrel, and therefore an end of the barrel is added after part (31), or part 38 ) - illustrated by the drawings ( Fig. 2 ) or the device is added to the end of the barrel on the muzzle side ( Fig. 8 ) as an extension of the existing or in place of part of the existing, after having shortened it accordingly.
  • This addition can be done according to several methods: brazing, screwing, bayonet, etc.).
  • the proportion of the amplitude arms depends directly on the caliber of the weapon: 1 to 4 for an 8 mm (bullet), 1 to 1 0 for a caliber 1 2 (shot), and will therefore be fixed.
  • the closing mechanism consists of lever arms (8) actuated by a part (6) whose shape can be variable. Once the projectile has passed level with the flaps, they close directly behind and the gases are directed to one or two exhaust pipes leading to an expansion tank with timer. The gases conveyed by the recovery pipes (21) enter the expansion vessel through the opening (22) made on the shaft (23) once the latter has been pushed to the end of its travel and thus closed. the openings (24). A pressure relief valve (25) is present (but could be replaced by small holes). As the pressure drops, the axis returns to its initial position thanks to the spring (26) and the gases are discharged through the vents.
  • the projectile enters a movable part of the barrel (31) by pushing it forward.
  • the rod of this part (31) being connected to the ring (6) pulls the latter forward which has the consequence of actuating the lever arms (8) on the pins (7) which will close the shutters (10) , the gases being thus diverted to the exhaust (11), and then treated in the expansion vessel (27).
  • this expansion vessel can have any shape and is made from any material, solid or elastic; it can be applied anywhere on the weapon (for example laterally on the barrel or below);
  • the setting in motion of the entire device will be controlled by the thrust that the projectile exerts on the movable part of the barrel (31).
  • the amplitude coefficient will be calculated according to the caliber so that the flaps close immediately after the passage of the projectile, letting it advance by less than a millimeter.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Silencers (AREA)
  • Pipe Accessories (AREA)
  • Toys (AREA)

Claims (20)

  1. Schalldämpfervorrichtung für Feuerwaffe, insbesondere für Gewehr oder eine andere Lang- oder Kurzfeuerwaffe, umfassend:
    einen Klappenmechanismus (10), der mindestens eine Verschlussklappe (10) umfasst, die quer zur Achse am Lauf (42) der Feuerwaffe angebracht ist, um, wenn ein Schuss abgefeuert wird, den Lauf nach dem Durchgang einer Munition zeitweilig zu verschließen und den Durchgang der Verbrennungsgase und der Schallwelle zur Mündung des Laufs hin zu verhindern,
    eine Betätigungseinheit (31,34,35), die einen beweglichen Teil (31) aufweist, der axial auf dem Lauf der Feuerwaffe angeordnet ist, um einen Steuermechanismus (6) in Bewegung zu setzen, wobei der axial bewegliche Teil (31) eine Innenbohrung aufweist, die dafür ausgelegt ist, den Durchgang einer Munition zu ermöglichen,
    wobei der Steuermechanismus (6) mindestens einen Schwingungsweitenhebelarm (8) aufweist, der schwenkbar auf einem am Lauf befestigten Drehzapfen (7) gelagert ist, wobei jeder Schwingungsweitenhebelarm (8) jeweils an eine Verschlussklappe (10) gekoppelt ist,
    wobei die bewegliche Betätigungseinheit (31,34,35) mit dem Steuermechanismus (6) zusammenwirkt, um eine Querbewegung der genannten, mindestens einen Verschlussklappe (10) zwischen einer geöffneten Stellung, in der der Klappenmechanismus (10) den Durchgang einer Munition zur Mündung des Laufs (42) hin sicherstellt, und einer geschlossenen Stellung, in der er den Durchgang der Verbrennungsgase und der Schallwelle nach dem Durchgang der Munition verhindert, zu ermöglichen, und
    eine Austrittseinheit (11, 21-27) mit mindestens einem Austrittsrohr (11, 21), das am Lauf dem Verschlussklappenmechanismus (10) vorgelagert angeordnet ist, um die Verbrennungsgase und die Schallwelle umzulenken und aus dem Lauf austreten zu lassen.
  2. Schalldämpfervorrichtung nach Anspruch 1, wobei der bewegliche Teil (31) der Betätigungseinheit (31,34,35) im Wesentlichen zylindrisch (31) ist und dafür ausgelegt ist, in eine Aufnahme im Inneren des Laufs eingeschoben zu werden, wobei der bewegliche Teil (31), der die Innenbohrung des beweglichen Teils (31) bildet, einen Durchmesser aufweist, der im Wesentlichen gleich dem Innendurchmesser des 10 Laufs (42) ist, um den Durchgang der Munition zu ermöglichen.
  3. Schalldämpfervorrichtung nach Anspruch 1 oder 2, wobei der Steuermechanismus (6) eine Übertragungsstange umfasst und der bewegliche Teil (31) eine Kupplungsanordnung (34-36) aufweist, die mit der Übertragungsstange gekoppelt ist, um den Steuermechanismus (6) in einer Richtung im Allgemeinen parallel zur Achse des Laufs (42) in Bewegung zu setzen.
  4. Schalldämpfervorrichtung nach einem der vorhergehenden Ansprüche, wobei der Steuermechanismus (6) einen Führungs- und Übertragungsring (6) aufweist, der dafür ausgelegt ist, auf dem Lauf zu gleiten, wobei der Ring (6) mit der Stange und dem beweglichen Teil (31) zusammenwirkt, um die Bewegung auf den Hebelarm (8) zu übertragen.
  5. Schalldämpfervorrichtung nach einem der vorhergehenden Ansprüche, wobei der Klappenmechanismus (10) zwei Verschluss- (10) Klappen (10) umfasst, die in einem quer zur Achse des Laufs platzierten Sitz (37) angeordnet sind und die eine vorbestimmte Länge aufweisen und entlang der Achse des Laufs (42) geringfügig gegeneinander versetzt sind, damit sie in der geschlossenen Stellung einander teilweise überdecken, ohne aneinanderzuschlagen.
  6. Schalldämpfervorrichtung nach einem der vorhergehenden Ansprüche, wobei der Klappenmechanismus (10) zwei Verschluss- (10) Klappen (10) umfasst, wobei jede Klappe (10) eine Öffnung aufweist, die dafür ausgelegt ist, das Ende des Schwingungsweitenhebelarms (8) aufzunehmen, um die Schwenkbewegung des Schwingungsweitenhebels (8) zu übertragen und die Klappe (10) in einer Richtung quer zur Achse des Laufs zu betätigen.
  7. Schalldämpfervorrichtung nach einem der vorhergehenden Ansprüche, wobei der Klappenmechanismus (10) zwei Verschluss- (10) Klappen (10) umfasst und der Führungsring (6) ferner zwei seitlich der Achse des Laufs angeordnete Basisteile umfasst, die jeweils eine längliche Öffnung bilden, um das Ende eines der Hebelarme (8) aufzunehmen und um ein Betätigen der Hebelarme(8) als Schwenken um die Drehzapfen (7) zu ermöglichen, um die Klappen (10) zu schließen und zu öffnen.
  8. Schalldämpfervorrichtung nach einem der vorhergehenden Ansprüche, wobei der Steuermechanismus (6) mindestens eine erste Rückstellfeder (32) umfasst, die mit dem Führungsring (6) in Verbindung steht, damit er in seine Ausgangsstellung zurückkehrt, wenn der Druck der Gase sinkt.
  9. Schalldämpfervorrichtung nach einem der vorhergehenden Ansprüche, wobei die Austrittseinheit (11, 21-27) ferner einen Ausgleichsbehälter (27) umfasst, der an dem mindestens einen Austrittsrohr (11, 21) angeschlossen ist, um die von dem genannten, mindestens einen Austrittsrohr (11, 21) transportierten Gase aufzunehmen, wobei der Ausgleichsbehälter (27) Schall-/Lüftungsöffnungen (24) aufweist, die ermöglichen, dass die Verbrennungsgase und die Schallwelle aus dem Ausgleichsbehälter (27) austreten können.
  10. Schalldämpfervorrichtung nach Anspruch 9, wobei der Ausgleichsbehälter (27) ein Innenrohr (23) umfasst, das mit Klappen verbunden ist, die dafür ausgelegt sind, die Schall-/Lüftungsöffnungen (24) zu verschließen, und
    wobei die Gase durch eine in dem Innenrohr (23) eingearbeitete Öffnung (22) in den Ausgleichsbehälter (27) eintreten, sobald dieses bis zur Endstellung gedrückt worden ist und somit die Schall-/Lüftungsöffnungen (24) verschlossen hat, und wobei das Innenrohr (23) aufgrund einer Rückstellfeder (26) bei sinkendem Druck in seine Ausgangsstellung zurückkehrt, wodurch die Verbrennungsgase und die Schallwelle durch die Schall-/Lüftungsöffnungen (24) aus dem Ausgleichsbehälter (27) austreten können.
  11. Schalldämpfervorrichtung nach einem der vorhergehenden Ansprüche, wobei der bewegliche Teil (31) der Betätigungseinheit (31,34,35), der im Wesentlichen zylindrisch (31) ist, einen Teil des Laufs (42), der den Sitz (37) des Verschlussklappenmechanismus (10) durchquert, und einen Endteil (38) des Laufs verbindet und einen überdeckenden Teil und einen durch eine Schulter getrennten überdeckten Teil umfasst, wobei der zylindrische überdeckende Teil dafür ausgelegt ist, den Teil des Laufs (42) zu überdecken, der den Sitz (37) des Klappenmechanismus (10) durchquert, und der zylindrische überdeckte Teil dafür ausgelegt ist, durch den Endteil (38) des Laufs überdeckt zu werden.
  12. Schalldämpfervorrichtung nach Anspruch 11, wobei der Endteil (38) des Laufs eine Aufnahme umfasst, die einen ersten zylindrischen Teil aufweist, der dafür ausgelegt ist, den überdeckenden Teil des beweglichen Teils (31) aufzunehmen, und einen zweiten zylindrischen Teil mit einem kleineren Durchmesser, der dafür ausgelegt ist, den überdeckten Teil des beweglichen Teils (31) aufzunehmen, wobei der erste zylindrische Teil und der zweite zylindrische Teil des Endteils (38) durch eine Schulter getrennt sind.
  13. Schalldämpfervorrichtung nach Anspruch 12, wobei der erste zylindrische Teil des Endteils (38) länger ist als der zylindrische überdeckende Teil des beweglichen Teils (31), um die axiale Bewegung des beweglichen Teils (31) zu ermöglichen, wobei der zweite zylindrische Teil des Endteils (38) im Wesentlichen die gleiche Länge wie der überdeckte zylindrische Teil des beweglichen Teils (31) aufweist.
  14. Schalldämpfervorrichtung nach einem der Ansprüche 12 oder 13, wobei der überdeckende Teil des beweglichen Teils (31) einen Innendurchmesser aufweist, der dem Außendurchmesser des Teils des Laufs (42) entspricht, der den Sitz (37) durchquert, und einen Außendurchmesser aufweist, der dem Innendurchmesser des ersten zylindrischen Teils des Endteils (38) entspricht.
  15. Schalldämpfervorrichtung nach einem der Ansprüche 1 bis 10, wobei der bewegliche Teil (31) der Betätigungseinheit (31,34,35), der im Wesentlichen zylindrisch (31) ist, den Endteil des Laufs bildet und einen überdeckenden Teil und einen durch einen Schulter getrennten Endteil aufweist, wobei der zylindrische überdeckende Teil des beweglichen Teils (31) dafür ausgelegt ist, einen Teil des Laufs (42) zu überdecken, der den Sitz (37) des Verschlussklappenmechanismus (10) durchquert, und der Endteil die Mündung des Laufs bildet.
  16. Schalldämpfervorrichtung nach Anspruch 15, wobei der überdeckende Teil des beweglichen Teils (31) eine Aufnahme umfasst, die einen zylindrischen Teil aufweist, der dafür ausgelegt ist, den zylindrischen Teil des Laufs (42) aufzunehmen, der den Sitz (37) des Klappenmechanismus (10) durchquert, und die axiale Bewegung des beweglichen Teils (31) zu ermöglichen, wobei der zylindrische Teil des Laufs (42) im Wesentlichen die gleiche Länge wie der überdeckende zylindrische Teil des beweglichen Teils (31) aufweist.
  17. Schalldämpfervorrichtung nach einem der Ansprüche 15 oder 16, wobei der überdeckende Teil des beweglichen Teils (31) einen Innendurchmesser aufweist, der dem Außendurchmesser des Teils des Laufs (42) entspricht, der den Sitz (37) des Klappenmechanismus (10) durchquert.
  18. Schalldämpfervorrichtung nach einem der Ansprüche 15 bis 17, wobei der bewegliche Endteil (31) am Lauf einen Choke bildet, dessen Innendurchmesser sich zur Mündung des Laufs hin verringert, wobei der zylindrische überdeckende Teil den Lauf (42) überdeckt und der Endteil einen konischen Innenteil mit einem maximalen Durchmesser aufweist, der gleich dem Innendurchmesser des Laufs ist und sich zur Zone der Mündung des Laufs hin verengt.
  19. Lang- oder Kurzfeuerwaffe, insbesondere Gewehr, umfassend eine Schalldämpfervorrichtung nach einem der vorhergehenden Ansprüche, wobei der Lauf der Feuerwaffe ein Befestigungssystem umfasst, das von den genannten Drehzapfen (7) und einem quer zur Achse des Laufs angeordneten Sitz (37) zur Aufnahme des genannten Verschlussmechanismus (10) gebildet ist, um die genannte Schalldämpfervorrichtung am Lauf zu befestigen.
  20. Schalldämpfungsverfahren für Feuerwaffe, insbesondere für Gewehr oder eine andere Lang- oder Kurzfeuerwaffe, wenn ein Schuss abgegeben wird, wobei das Verfahren die Schritte umfasst:
    zeitweiliges Verschließen des Laufs nach dem Durchgang einer Munition und Verhindern des Durchgangs der Verbrennungsgase und der Schallwelle zur Mündung des Laufs (42) hin, wenn ein Schuss abgegeben wird, durch einen Verschlussklappenmechanismus (10), der mindestens eine Verschlussklappe (10) umfasst, die quer zur Achse am Lauf der Feuerwaffe angebracht ist,
    In-Bewegung-Setzen einer Betätigungseinheit (31) und eines Steuermechanismus (6) durch den Druck einer Munition, die durch ein bewegliches Teil (31) der Betätigungseinheit (31) hindurchgeht, das axial auf dem Lauf der Feuerwaffe angeordnet ist, wobei das axial bewegliche Teil (31) eine innere Bohrung aufweist, die dafür ausgelegt ist, den Durchgang von Munition zu ermöglichen,
    wobei der Steuermechanismus (6) mindestens einen Schwingungsweitenhebelarm (8) aufweist, der schwenkbar auf einem am Lauf befestigten Drehzapfen (7) gelagert ist, wobei jeder Schwingungsweitenhebelarm (8) jeweils an eine Verschlussklappe (10) gekoppelt ist,
    Erzeugen, mittels der Betätigungseinheit (31) und des Steuermechanismus (6), einer Querbewegung der mindestens einen Verschlussklappe (10) zwischen einer geöffneten Stellung, in der der Klappenmechanismus (10) den Durchgang einer Munition zur Mündung des Laufs (42) hin sicherstellt, und einer geschlossenen Stellung, in der er den Durchgang der Verbrennungsgase und der Schallwelle nach dem Durchgang der Munition verhindert, und
    Umlenken und Austretenlassen der Verbrennungsgase und der Schallwelle aus dem Lauf mittels einer Austrittseinheit (11, 21-27), die mindestens ein Austrittsrohr (11, 21) aufweist, das am Lauf (42) dem Verschlussklappenmechanismus (10) vorgelagert angeordnet ist.
EP17737835.3A 2016-08-29 2017-07-14 Schalldämpfervorrichtung für feuerwaffe Active EP3504501B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
RS20201440A RS61121B1 (sr) 2016-08-29 2017-07-14 Neutralizator zvuka za vatreno oružje
SM20200635T SMT202000635T1 (it) 2016-08-29 2017-07-14 Dispositivo silenziatore per arma da fuoco
SI201730516T SI3504501T1 (sl) 2016-08-29 2017-07-14 Dušilna naprava za strelno orožje
HRP20201908TT HRP20201908T1 (hr) 2016-08-29 2017-07-14 Prigušujuća naprava za vatreno oružje

Applications Claiming Priority (2)

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LU93184A LU93184B1 (fr) 2016-08-29 2016-08-29 Dispositif neutralisateur de son pour arme à feu
PCT/EP2017/067876 WO2018041462A1 (fr) 2016-08-29 2017-07-14 Dispositif neutralisateur de son pour arme à feu

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EP3504501B1 true EP3504501B1 (de) 2020-09-02

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US11927410B2 (en) * 2021-09-27 2024-03-12 Jacob KUNSKY Firearm suppressor with remote chamber
US11976896B2 (en) * 2022-02-25 2024-05-07 True Velocity Ip Holdings, Llc Firearm muzzle brake with gas-actuated valve
CN117516261B (zh) * 2023-12-18 2025-12-02 山东第二机械有限公司 枪口减振降噪增压装置

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DE129989C (de) *
US1331474A (en) * 1919-07-11 1920-02-17 Shaverksha D Master Gun
BE347810A (de) * 1927-04-27
FR634990A (fr) * 1927-05-05 1928-03-03 Appareil destiné à atténuer le bruit et le recul des canons, mitrailleuses et carabines
BE345878A (de) * 1927-09-01 1900-01-01
DE2238834A1 (de) * 1972-08-07 1974-02-14 Ernst Kitzmann Schalldaempfer fuer waffen verschiedener art
FR2719937B1 (fr) 1994-05-16 1996-08-02 Bernard Louvat Dispositif modérateur de son.
WO2011035111A1 (en) 2009-09-18 2011-03-24 Silencerco, Llc Firearm sound suppressor
CN102735099A (zh) * 2012-06-14 2012-10-17 浙江新华体育器材制造有限公司 一种带有消音器的射击枪械
HUE030584T2 (en) 2012-06-28 2017-06-28 Steindl Andreas Silencer for handgun
CN203518810U (zh) * 2013-11-07 2014-04-02 梁启明 狙击步枪消声器
CN105157473B (zh) * 2015-08-18 2017-03-22 西南大学 一种可改变出膛力度的防暴枪

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HUE051791T2 (hu) 2021-03-29
CY1123553T1 (el) 2022-03-24
EA036578B1 (ru) 2020-11-25
CA3034443A1 (fr) 2018-03-08
RS61121B1 (sr) 2020-12-31
JP2019526779A (ja) 2019-09-19
CN109844443A (zh) 2019-06-04
WO2018041462A1 (fr) 2018-03-08
DK3504501T3 (da) 2020-11-30
HRP20201908T1 (hr) 2021-01-22
LU93184B1 (fr) 2018-03-28
LT3504501T (lt) 2020-11-10
PL3504501T3 (pl) 2021-03-22
PT3504501T (pt) 2020-11-17
SI3504501T1 (sl) 2020-12-31
MX2019002389A (es) 2019-09-06
EP3504501A1 (de) 2019-07-03
SMT202000635T1 (it) 2021-01-05
US20190249943A1 (en) 2019-08-15
ES2828312T3 (es) 2021-05-26
BR112019004131A2 (pt) 2019-05-28
EA201900131A1 (ru) 2019-11-29

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