DE102015111066B4 - Reduction system for a handgun - Google Patents

Abstract

Reduction system (1) for a handgun, for insertion into a carrier barrel (30) and with an axial bore (2) for a caliber reduced compared to the carrier barrel (30), comprising an insertion barrel (4) through which at least part of the axial Bore (2), characterized by a silencer (3) which, in the inserted state, is arranged at least predominantly within the carrier barrel (30) and at least in the inserted state is connected to the insert barrel (4), the reducing system (1) consisting of an interconnected insert barrel (4) and silencer (3) as a means for releasably locking in the carrier barrel (30) has clamping devices that can be fixed and released again by means of screws, individually adjustable clamping devices being available on different sides of the reduction system, by means of which an alignment of the axial Bore (2) relative to the carrier barrel (30) is adjustable in order to match a target point de Allow s reducing system (1) with a target point of the carrier run (30).

Description

The invention relates to a reduction system for a handgun according to the preamble of claim 1, as well as a barrel arrangement of a handgun.

In the prior art, insert barrels are used to retrofit a large-caliber weapon in such a way that it can fire projectiles of a smaller caliber. The insert barrel is inserted into the carrier barrel with which the weapon is originally equipped and is then used to fire the projectile. If necessary, the weapon can also be converted for a different type of ammunition, e.g. if a shotgun is equipped with a barrel that is suitable for firing bullets. Such a run can then also be drawn, for example. In addition to shotguns, insert barrels are also used in other handguns such as pistols. The insert barrel is normally secured in the carrier barrel by a clamp connection or the like. The connection is usually adjustable so that the insertion barrel can be set up on the target point of the carrier barrel. Furthermore, so-called feed runners are also known, which are introduced into a carrier run in a similar manner, but are then connected to it in a materially bonded manner, for example glued or soldered. Insert barrels and feed barrels can also be referred to as reduction barrels or reduction systems, since they reduce the caliber of the respective weapon.

Silencers are used on handguns to reduce the noise caused by escaping muzzle gases. This noise is based on the fact that the hot muzzle gases hit the cold air of the environment when they exit the muzzle, the noise being triggered by the strong pressure difference. The effect of the muffler is based on the fact that the outlet gases first expand inside the muffler before they exit and are decelerated and / or swirled here by the internal structure of the muffler, which has, for example, internal lamellae or the like. Such silencers are also used, for example, in hunting weapons, above all in order to keep noise pollution low in urban areas. In addition, there is also an effort to protect the shooter (e.g. a hunter) from noise as much as possible in order to prevent hearing damage. Often insert runners or feed runners are used together with silencers.

In any case, the silencer is generally not an integral part of the weapon, but is screwed onto the muzzle end of the weapon if necessary. And to perform its function efficiently, the silencer needs a certain minimum length, which increases the overall length of the weapon in an undesirable manner, deteriorates its manageability and impairs the classic appearance of the hunting weapon.

The published registration document GB 2 381 060 A shows a reduction system comprising an insertion barrel for insertion into the carrier barrel of a firearm. The barrel has an outer diameter that corresponds to the caliber of the barrel and ends within the barrel, so that a free section is formed inside the barrel beyond the mouth of the barrel, which allows a projectile fired from the barrel to be unintentional Movement of the weapon does not touch the inner wall of the carrier barrel in the area of the free section.

The patent specification US 6 079 311 A proposes a silencer that can be used within the muzzle part of a barrel of a weapon. The space for this can be created by a barrel extension screwed onto an original muzzle or by drilling open the barrel in its end area.

In the patent specification U.S. 1,173,687 A a silencer is proposed which can be inserted into the barrel of a firearm and which consists of several modules held in the barrel by an end cap screwed onto the muzzle. The modules are inserted into an area in which the axial bore of the barrel is widened so that its diameter corresponds to the diameter of the modules.

The present invention is therefore based on the object of improving the compactness of a handgun with a silencer.

The object is achieved according to the invention by a reducing system for insertion into a carrier barrel, the reducing system having an axial bore for a caliber reduced compared to the carrier barrel, the reducing system comprising an insert barrel through which at least part of the axial bore extends, and a silencer which in the inserted state is at least predominantly arranged within the carrier barrel and connected to the insert barrel, the reducing system having clamping devices as a means for releasably locking in the carrier barrel, which can be fixed and released again by means of screws, individually adjustable clamping devices being present on different sides of the reducing system are, by means of which an alignment of the axial bore is adjustable relative to the carrier run in order to match the target point of the reduction system with the target point of the To enable carrier run, as well as solved by a barrel arrangement with the features of claim 11.

The invention provides a reduction system for a handgun for insertion into a carrier barrel. Rifles, in particular, but also other weapons such as. B. pistols in question. In the context of the invention, it is irrelevant whether it is a single-barreled or multi-barreled handgun. The carrier barrel represents a self-functioning barrel of the handgun, from which projectiles of a certain caliber can be fired. It can, for example, also include a cartridge chamber at an end remote from the muzzle. The carrier barrel is the barrel that the weapon is normally equipped with at the factory. The reduction system is here provided with an axial bore, which is positioned coaxially or radially offset, for a caliber that is reduced compared to the carrier barrel. I.e. the carrier barrel is intended for a larger caliber, while the bore of the reduction system is intended for a smaller caliber. The axial bore can have different diameters in sections, for example a cartridge chamber can be formed in one area, which of course has a larger diameter. Insofar as a diameter is mentioned here and in the following, this term is to be understood in the sense of a transverse dimension and should not be interpreted to mean that only circular cross-sections come into consideration. Deviations from the circular shape are conceivable both with regard to the inner bore of the carrier run itself and with regard to the axial bore of the reduction system (e.g. solely due to the fact that trains are provided).

With regard to an attachment of the reduction system within the carrier run, there are basically various possibilities, such as, for example, a detachable or non-detachable attachment, which can be implemented by a form-fitting, force-fitting and / or material connection. Some options for this are explained below.

According to the invention, the reduction system comprises a silencer which, in the inserted state, is arranged at least predominantly within the carrier run. In other words, the reduction system is designed in such a way that the silencer, in the inserted state, is arranged at least predominantly within the carrier run. That is to say, in contrast to conventional silencers, which are typically screwed onto the muzzle of the weapon and are therefore at least predominantly outside the barrel, the silencer according to the invention is at least predominantly in the carrier barrel. The invention makes use of the fact that, due to the smaller caliber of the reducing system, part of the internal volume of the carrier barrel is lost anyway, or is not used by the projectile itself. The silencer is arranged in this volume. Thus, on the one hand, the space within the carrier barrel resulting from the caliber reduction is effectively used and an external silencer, which increases the length of the weapon, is unnecessary. The weapon is thus compact despite the silencer and, moreover, the silencer is also protected against damage within the carrier barrel. The muffler can end within the girder run, end flush with it, or it can protrude beyond it. It goes without saying that the axial bore runs through the silencer, the diameter of the bore being able to change (e.g. increase) within the silencer.

In principle, the silencer can be constructed similarly to the silencer known in the prior art, i. H. its operating principle is also conventional in this regard. The reduction system can be designed in several parts, the individual parts, however, being connected to one another at least in the inserted state. In addition, the reduction system can also be designed in one piece.

In particular, the handgun can be a rifle with a shotgun barrel, the reduction system being designed for insertion into a carrier barrel of the shotgun. This means that the dimensions of the reduction system are adapted to the internal dimensions of the corresponding carrier run.

According to the invention, the reduction system comprises an insertion barrel, which is connected to the silencer at least in the inserted state and through which at least part of the axial bore extends. The plug-in barrel can be viewed as that part of the reducing system which mainly serves to receive and guide the projectile and which is not structurally designed to dampen the sound. A precise demarcation between the silencer and the insert barrel may not always be possible. The muffler will normally be located in the region of the mouth of the carrier barrel, while the plug-in barrel is connected in the axial direction on a side facing away from the mouth. However, configurations are also conceivable in which the insertion barrel is at least partially arranged within the silencer. The insertion barrel typically extends into the area of the end of the carrier barrel remote from the muzzle, since a projectile to be fired is introduced into the insertion barrel there. This does not necessarily mean that the end of the insertion barrel must be flush with the named end of the carrier barrel, but rather it can be within of the carrier barrel or protrude beyond it.

The term “insert barrel” is to be interpreted broadly in this context and describes any barrel of smaller caliber that can be used in a carrier barrel of larger caliber. There is no restriction with regard to the type of attachment within the carrier run. For example, the reducing system including the insert barrel can be glued or soldered into the carrier barrel, in which case one can also speak of a feed barrel. According to another embodiment, the reducing system is designed for releasable locking in the carrier barrel. In particular, the reducing system can include means for releasably locking in the carrier run. These can be, for example, clamping devices that are fixed and released again by means of screws.

According to one embodiment, the muffler and the insert barrel are formed in one piece. This is to be understood in such a way that although the silencer and / or the insert barrel can possibly consist of several separately manufactured components, there is at least one component that is part of both the silencer and the insert barrel. The production can take place, for example, in such a way that the axial bore in the plug-in barrel is drilled out from the mouth and this widened area is used as a silencer. It goes without saying that the outer diameter of the plug-in barrel is greater than the clear diameter created by the widening of the axial bore. In this embodiment, the reduction system, even if it comprises several parts, is generally used as a whole in the carrier run. Similarly, the muffler and insert barrel can consist of separately manufactured parts, but they can be connected to one another in a non-detachable manner, which in terms of handling comes close to a one-piece design.

According to an alternative embodiment, the silencer and the insert barrel can be detachably connected to one another. That is, the reduction system consists of at least two separate components, which are connected to one another either before being inserted into the carrier run or in the course of being inserted. The connection can be made, for example, by screwing. This configuration can, for. B. be advantageous as each of the two parts - can be replaced individually - for example when worn.

Another advantage is obtained if, according to one embodiment, the silencer and the insert barrel can be inserted into the carrier barrel from opposite ends and can be locked to one another within the same. I.e. normally the silencer is pushed through the muzzle into the carrier barrel, while the insert barrel is inserted into the carrier barrel from the opposite end remote from the muzzle. The two parts are then connected to one another within the carrier run and locked to one another or to one another. The locking can for example be given by a screw connection. However, it is also conceivable here that the two parts are only plugged into one another (which in itself does not represent a complete locking), although the silencer and insert barrel are each locked separately in the carrier barrel, whereby the two parts are also fixed relative to one another.

In particular, but not exclusively, for use with a shotgun, it is preferred that the insertion barrel is designed for at least partial insertion into a cartridge chamber of the carrier barrel. That is to say, at least a part of the insertion barrel is arranged in the cartridge chamber in the inserted state. The insertion barrel is typically arranged within the chamber along the entire length of the chamber. In this case, as in other cases, the ends of the carrier barrel facing away from the muzzle and of the insert barrel can possibly be flush with one another.

In order to enable the target point of the reducing system to match that of the carrier barrel or, in the case of multi-barrel weapons, that of another barrel, the invention provides that an alignment of the axial bore is adjustable relative to the carrier barrel. There is of course the possibility of locking in a certain orientation. This can mean that the entire reducing system is adjustable with respect to the carrier run or that, if necessary, only a part of the reducing system within which the axial bore is formed is adjustable. Such adjustability is made possible according to the invention by the clamping devices described above, in that individually adjustable clamping devices are provided on different sides of the reduction system.

According to one embodiment, the silencer comprises at least one expansion chamber which is arranged radially on the outside of the axial bore and is connected to it via at least one gas take-off opening. The expansion chamber can in particular be arranged circumferentially around the axial bore and concentrically therewith. The expansion chamber can be separated from the axial bore by an intervening, in particular cylindrical, wall, this wall, however, being pierced by at least one gas take-off opening through which gases from the axial bore into the expansion chamber when a projectile is fired can flow in. Configurations are also conceivable in which there is no wall between the axial bore and the expansion chamber, in particular when the silencer comprises several expansion chambers.

Similar to what is known in the prior art in the case of silencers, the silencer can comprise a plurality of expansion chambers following one another in the axial direction with partition walls in between. These partitions can optionally be referred to as lamellae. For example, they can be in the form of circular rings or truncated cones. If necessary, openings can in turn be provided within the partition walls, via which a gas exchange between adjacent chambers is possible. If there is a wall between the chamber and the axial bore, the partition walls can consist of the same material as the wall and, if necessary, also be formed in one piece with it.

According to one embodiment, at least one expansion chamber is open to the outside in the radial direction and is designed in such a way that in the inserted state it is closed to the outside by the carrier barrel, i. That is, the outer wall of the expansion chamber in the radial direction is formed in the inserted state by the carrier barrel. In this case, all the chambers can optionally be designed in the manner shown. In this case, the silencer can be described as “without a jacket” because it does not have an outer jacket on its own. This configuration is advantageous in that material is saved and the reduction system becomes lighter overall. A somewhat larger internal volume of the individual expansion chambers is also possible here, which can also support their function.

It is also possible that at least one expansion chamber is closed to the outside in the radial direction, i. H. the corresponding expansion chamber has an outer wall which is normally connected to the partition walls or is even formed in one piece with them. In particular, all of the chambers can be closed to the outside in the manner described. In this case, the silencer has a jacket as a whole. However, mixed forms are also conceivable, e.g. if the silencer protrudes over the mouth of the girder barrel. In this case, for example, a first expansion chamber, which is located outside the carrier run, could have a jacket, while the further expansion chambers, which are arranged inside the carrier run, are designed without a jacket. Although the above-mentioned advantages of a casing-free design are omitted, a separate casing of the silencer has the advantage that the carrier barrel does not come into contact with the explosion gases, which has an advantageous effect on its service life.

The invention also provides a barrel assembly for a handgun. This comprises a carrier barrel of a handgun and a reducing system according to the invention.

Preferred configurations of the barrel arrangement correspond to the preferred configurations of the reducing system according to the invention.

Further details, features and advantages of the invention can be found in the following part of the description, in which an embodiment according to the invention is reproduced with reference to the drawings.

• 1: eine Schnittdarstellung einer erfindungsgemäßen Laufanordnung; sowie
• 2: eine Schnittdarstellung des Reduziersystems der Laufanordnung aus 1.

Show it:

• 1 : a sectional view of a barrel arrangement according to the invention; such as
• 2 Figure 3 shows a sectional view of the reduction system of the barrel assembly 1 .

1 Figure 10 shows a sectional view of a barrel assembly 40 a shotgun. This includes a carrier run 30th with a mouth 31 as well as an end remote from the mouth 32 . An inner hole 33 of the carrier run widens in the area of the end remote from the mouth 32 to a cartridge chamber 34 for a shotshell. A reduction system is used in the carrier run 1 , which extends over almost the entire length of the carrier run 30th extends. For a better overview is the reduction system 1 in 2 shown individually. A silencer 3 of the reduction system 1 is adjacent to the estuary 31 of the carrier barrel arranged, the end of which is flush with the mouth 31 of the carrier run 30th concludes.

With the silencer 3 connected is an insert barrel 4th that extends to the end remote from the mouth 32 extends and there in the chamber 34 is used. The external dimensions of the insert barrel 4th are in this area to the shape of the cartridge chamber 34 customized. In the present case, the insert barrel closes 4th not flush with the end remote from the mouth 32 of the carrier run 30th but it ends a short distance within the carrier run 30th . Inside the insert barrel 4th is another chamber 5 formed, which is of course designed for a smaller caliber than the cartridge chamber 34 of the carrier run 30th .

From the chamber mentioned 5 to the silencer 3 runs through the reduction system 1 an axial bore 2 . On the one hand, their diameter is in the area of the cartridge chamber 5 enlarged, on the other hand it shows an enlarged area 6th in the area of the silencer 3 on. To the extended area 6th around it are three tangential chambers 7th , 8th , 9 formed by the axial bore 2 through a wall 10 and from each other through interposed lamellas 11 are separated. The foremost chamber 9 is through a slat 11 closed to the outside. Each of the expansion chambers 7th , 8th , 9 however communicates with the axial bore 2 via gas tapping holes 12 which extend essentially in the radial direction. The chambers point outward in the radial direction 7th , 8th , 9 no wall on, but through the carrier run 30th completed. The chamber furthest from the mouth 7th has a length that is several times greater than that of the two chambers near the mouth 8th , 9 and is through a support ring 13 divided in two, but with through holes 14th has, over which a gas exchange is possible.

When using the rifle, a cartridge (not shown) is inserted into the chamber 5 used and ignited. The bullet traverses the axial bore 2 and enters through the extended area 6th of the silencer 3 finally to the outside world. The gases driving the projectile do not exit directly, but first pass through the gas take-off bores 12 and partly through the through-holes 14th into the expansion chambers 7th , 8th , 9 . The gases cool down, are swirled and slowed down before they finally exit through the mouth. This significantly reduces the muzzle bang.

Although this is in 1 not shown, comprises the reduction system 1 Means for locking within the carrier barrel 30th , these means simultaneously serving to adjust a position of the reducing system within the carrier run. These include clamp connections that are operated using screws.

The expansion chambers 7th , 8th , 9 are in the embodiment according to 1 formed without an outer wall. Alternatively, at least some, typically all, chambers 7th , 8th , 9 an outer wall can be provided so that the muffler 3 would not have a jacket as shown, but would have a jacket. In the embodiment shown, the muffler 3 and the insert barrel 4th firmly connected and are run as a unit in the carrier 30th used. Alternatively, a detachable connection between the silencer could also be used 3 and insert barrel 4th be provided, if necessary the insert barrel 4th from the end remote from the mouth 32 would be inserted from and the muffler from the muzzle 31 out.

List of reference symbols

1

Reducing system

2

axial bore

3

silencer

4th

Insert barrel

5

Cartridge chamber

6th

extended area

7, 8, 9

Expansion chamber

10

Wall

11

Lamella

12

Gas take-off hole

13

Support ring

14th

Through hole

30th

Carrier run

31

mouth

32

end remote from the mouth

33

inner bore

34

Cartridge chamber

40

Barrel arrangement

Claims (12)

Reduction system (1) for a handgun, for insertion into a carrier barrel (30) and with an axial bore (2) for a caliber reduced compared to the carrier barrel (30), comprising an insertion barrel (4) through which at least part of the axial Bore (2) extends, characterized by a silencer (3) which, in the inserted state, is arranged at least predominantly within the carrier barrel (30) and at least in the inserted state is connected to the insert barrel (4), the reduction system (1) being composed of interconnected Insert barrel (4) and silencer (3) as a means for releasably locking in the carrier barrel (30) has clamping devices that can be fixed and released again by means of screws, individually adjustable clamping devices being available on different sides of the reduction system, by means of which an alignment of the axial bore (2) is adjustable relative to the carrier barrel (30) to match a target point of the reducing system (1) with a target point of the carrier run (30). Reduction system according to Claim 1 , characterized in that a diameter of the axial bore (2) changes within the silencer (3), in particular increases. Reduction system according to one of the preceding claims, characterized in that the silencer (3) and the insert barrel (4) are constructed in one piece. Reduction system according to one of the Claims 1 or 2 , characterized in that the silencer (3) and the insert barrel (4) can be detachably connected to one another. Reduction system according to Claim 4 , characterized in that the silencer (3) and the plug-in barrel (4) can be inserted into the carrier barrel (30) from opposite ends (31, 32) and can be locked to one another within the same. Reduction system according to one of the Claims 3 to 5 , characterized in that the insertion barrel (4) is designed for at least partial insertion into a cartridge chamber (34) of the carrier barrel (30). Reduction system according to one of the preceding claims, characterized in that the silencer (3) comprises at least one expansion chamber (7, 8, 9) which is arranged radially on the outside of the axial bore (2) and is connected to it via at least one gas take-off opening (12) . Reduction system according to Claim 7 , characterized in that the muffler (3) comprises a plurality of expansion chambers (7, 8, 9) following one another in the axial direction with partition walls (11) in between. Reduction system according to Claim 7 or 8th , characterized in that at least one of the expansion chambers (7, 8, 9) is open to the outside in the radial direction and is designed such that it is closed to the outside by the carrier barrel (30) in the inserted state. Reduction system according to one of the Claims 7 to 9 , characterized in that at least one of the expansion chambers (7, 8, 9) is closed to the outside in the radial direction. Barrel assembly (40) of a handgun, comprising a carrier barrel (30) of the handgun in which a reduction system (1) according to one of Claims 1 to 10 is used. Barrel arrangement according to Claim 11 , characterized in that the silencer (3) ends completely within the carrier run (30) or flush with it.

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