EP3208567B1 - Sound absorber - Google Patents

Description

The invention relates to a silencer for a firearm, comprising an assembly consisting of a damping element with an expansion chamber, and with a connecting device for connecting the assembly to a firearm.

A generic muffler is from the DE 44 10 625 A1 known. Further mufflers for firearms and devices for connecting the same with the firearms are, for example, in DE 100 01 374 C1 or the DE 10 2014 119 734 A1 described.

From the DE 199 35 929 C1 a molded on a gun barrel connection is known in which a perpendicular to the direction pivotable ring can lock on a projection for fixing a muffler.

From the US 2007/0095198 A1 a mounting system for a muffler is known in which a vertically displaceable to the direction fuse secures the muffler on the barrel.

From the US 2015/0253098 A1 a system for mounting a muffler on a gun barrel is known in locking lugs can be brought against a spring force in an end position in recesses provided for this purpose to fix the muffler on the barrel.

The known muffler have several disadvantages: Firstly, the connection between the muffler and the weapon is usually solved by a thread that, although a fairly simple, but very time-consuming connection between these two components.

It is an object of the present invention to provide a silencer for a firearm, which eliminates the disadvantages mentioned above.

According to the invention, this object is achieved by the features mentioned in claim 1.

The muffler according to the invention has a connection device for connecting the muffler with the firearm and allows a very simple and fast connection of these two parts, so that the muffler according to the invention is ready for use within a very short time. Such a mounted muffler has the further advantage that it has a very firm and secure fit to the firearm. Accordingly, it is provided to connect a separately formed connecting device for connecting the assembly to the firearm, wherein the connecting means is provided for a particular releasable connection to the end of a firearm barrel, and on the other for releasable connection to the assembly has at least one projection, which to interact with a molding on the assembly by means of a positive guide by overcoming a spring force in the direction in which a positive engagement is engageable, so that the assembly is held on the connecting device, wherein the assembly at least two with the connecting device cooperating, in particular symmetrically to each other and oppositely arranged bolts (20) as a formation which extend in an aligned at least approximately perpendicular to a longitudinal axis of the muffler plane spaced from each other, and at least two arranged on a provided for engagement with the bolt engaging member having projections, wherein the engagement member has a width which is less than the distance of the bolts, and wherein the projections have such an extent that they engage behind the bolts after insertion of the engagement element between the bolts and a rotation of the engagement member and a locking of the engagement member with the bolts effect.

As a result, the silencer according to the invention can be easily attached to the firearm via the connecting device and removed again. For this purpose, it is only necessary to connect the connecting device with the firearm, which can be done via a screw on a thread introduced at the firearm barrel on its circumference.

In this embodiment, the connection means with the two bolts and the same in the locking position behind engaging projections on the engagement element results in an easy to implement embodiment and it is on the other hand a smooth operation of the same during locking and unlocking guaranteed. The bolts must only be inserted through bores formed perpendicular to the running direction. This simplifies the production. The design is advantageous in that a rotation by at least 90 ° for a latching must be carried out.

Preferably, the assembly consists of a damping element, which has an expansion chamber and a reflection chamber, with a cladding tube surrounding the damping element.

In a very advantageous development of the invention can be provided that between the assembly and connecting device at least one elastic ring is arranged, which is compressed at least in the end position of the connecting device in the positive position and thus the spring force in the direction of the connecting device against the assembly exercises. Such an example formed as a sealing ring elastic ring generated when locking the assembly to the connecting device such a holding force that accidental or unwanted dismantling of the muffler is prevented by the firearm. Rather, when unlocking the connection must overcome a corresponding, the holding force generated by the sealing ring Force to be applied. Furthermore, this sealing ring also reduces the penetration of dirt into the muffler and the discharge of gas from the muffler.

In order to achieve a simple and secure locking of the two parts, it can further be provided that the projections have a respective inclined surface, which leads to a Verrastnut, in which the bolts are in their engagement with the engagement member.

In this context, it is preferable if at the end of the central bore of the muffler facing the firearm, a sealing ring for sealing against the Expansion chamber is arranged, since in this way the escape of gases in the direction of the user of the firearm is prevented.

To allow a preferred mounting position of the muffler on the firearm and to prevent an undesirable mounting position, may further be provided that between the muffler and the firearm against rotation is formed, with a molding, in particular in the form of a grub screw, which in an asymmetric engages formed at the connection device exemption.

In order to facilitate the outflow of gases from the firing channel into the expansion chamber and / or the reflection chamber of the assembly, it can further be provided that at least some of the connecting bores extending from a firing channel to the expansion chamber and / or the reflection chamber are radially widening, in particular funnel-shaped , are designed.

By virtue of the expansion module detachable from the muffler, in which the expansion chamber is arranged, it is possible to achieve a reduction in the overall length of the muffler, since the expansion module can be located outside the barrel of the firearm, so that the muffler in principle passes over the firearm to which it is mounted extends. By this solution, the silencer per se is longer than in known solutions, but the overall length of the firearm with the mounted on the same silencer does not exceed the length of known solutions.

A simple gas exchange between the expansion module and the expansion chamber results when the expansion module is connected by means of a plurality of openings with the expansion chamber.

Embodiments of the invention are shown in principle with reference to the drawings.

Fig. 1

eine sehr schematische Darstellung einer Feuerwaffe mit einem erfindungsgemäßen Schalldämpfer;

Fig. 2

eine schematische Querschnittsdarstellung durch einen erfinderischen Schalldämpfer,

Fig. 3

eine Detailansicht des Bereichs B aus Fig. 2,

Fig. 4

eine schematische Querschnittsdarstellung in einer Schrägansicht durch den Schalldämpfer aus Fig. 2,

Fig. 5

eine Detailansicht des Bereichs D aus Fig. 4,

Fig. 6

eine schematische Querschnittsdarstellung des noch nicht montierten Schalldämpfers,

Fig. 7

eine schematische Querschnittsdarstellung des Schalldämpfers aus Fig. 6 mit eingelegten elastischen Ringen,

Fig. 8

eine schematische Querschnittsdarstellung des Schalldämpfers aus Fig. 7 mit eingeschobenem Verbindungsstück vor Verdrehung zur Endlage,

Fig. 9

eine schematische Querschnittsdarstellung des Schalldämpfers aus Fig. 8 mit Verbindungsstück in Endlage,

Fig. 10

eine schematische Querschnittsdarstellung des Schalldämpfers aus Fig. 9 mit noch nicht montiertem Expansionsmodul,

Fig. 11

eine Seitenansicht eines Dämpfungselements eines Schalldämpfers;

Fig. 12

einen Schnitt nach der Linie III - III aus Fig. 11;

Fig. 13

eine perspektivische Ansicht des Dämpfungselements aus Fig. 11;

Fig. 14

eine Ansicht gemäß dem Pfeil V aus Fig. 11;

Fig. 15

eine Seitenansicht eines Dämpfungselements eines Schalldämpfers;

Fig. 16

einen Schnitt nach der Linie VII - VII aus Fig. 15

Fig. 17

eine perspektivische Ansicht des Dämpfungselements aus Fig. 15;

Fig. 18

eine Ansicht gemäß dem Pfeil IX aus Fig. 15;

Fig. 19

einen Schnitt durch ein Hüllrohr des eines Schalldämpfers;

Fig. 20

eine perspektivische Ansicht des Hüllrohrs aus Fig. 19;

Fig. 21

eine perspektivische Ansicht eines Deckels für das Hüllrohr gemäß der Figuren 19 und 20;

Fig. 22

eine Draufsicht auf den Deckel gemäß Fig. 21;

Fig. 23

einen Schnitt nach der Linie XIV-XIV aus Fig. 22;

Fig. 24

eine Seitenansicht einer Verbindungseinrichtung zur Verbindung des Schalldämpfers mit der Feuerwaffe;

Fig. 25

einen Schnitt nach der Linie XXII-XXII aus Fig. 24;

Fig. 26

eine Ansicht gemäß dem Pfeil XXIII aus Fig. 24;

Fig. 27

einen Schnitt nach der Linie XXIV-XXIV aus Fig. 24;

Fig. 28

eine erste perspektivische Darstellung der Verbindungseinrichtung aus Fig. 24; und

Fig. 29

eine weitere perspektivische Darstellung der Verbindungseinrichtung aus Fig. 24.

It shows:

Fig. 1

a very schematic representation of a firearm with a silencer according to the invention;

Fig. 2

a schematic cross-sectional view through an inventive silencer,

Fig. 3

a detailed view of the area B from Fig. 2 .

Fig. 4

a schematic cross-sectional view in an oblique view through the muffler Fig. 2 .

Fig. 5

a detailed view of the area D from Fig. 4 .

Fig. 6

a schematic cross-sectional view of the not yet mounted muffler,

Fig. 7

a schematic cross-sectional view of the muffler Fig. 6 with inserted elastic rings,

Fig. 8

a schematic cross-sectional view of the muffler Fig. 7 with inserted connector before rotation to the end position,

Fig. 9

a schematic cross-sectional view of the muffler Fig. 8 with connector in end position,

Fig. 10

a schematic cross-sectional view of the muffler Fig. 9 with not yet mounted expansion module,

Fig. 11

a side view of a damping element of a muffler;

Fig. 12

a section along the line III - III off Fig. 11 ;

Fig. 13

a perspective view of the damping element Fig. 11 ;

Fig. 14

a view according to the arrow V out Fig. 11 ;

Fig. 15

a side view of a damping element of a muffler;

Fig. 16

a section along the line VII - VII from Fig. 15

Fig. 17

a perspective view of the damping element Fig. 15 ;

Fig. 18

a view according to the arrow IX from Fig. 15 ;

Fig. 19

a section through a cladding of a muffler;

Fig. 20

a perspective view of the cladding tube Fig. 19 ;

Fig. 21

a perspective view of a cover for the cladding tube according to the FIGS. 19 and 20 ;

Fig. 22

a plan view of the lid according to Fig. 21 ;

Fig. 23

a section along the line XIV-XIV Fig. 22 ;

Fig. 24

a side view of a connecting device for connecting the muffler with the firearm;

Fig. 25

a section along the line XXII-XXII Fig. 24 ;

Fig. 26

a view according to the arrow XXIII Fig. 24 ;

Fig. 27

a section according to the line XXIV-XXIV Fig. 24 ;

Fig. 28

a first perspective view of the connecting device Fig. 24 ; and

Fig. 29

another perspective view of the connecting device Fig. 24 ,

The same reference numerals in the figures designate the same or equivalent elements.

Fig. 1 shows in a very schematic representation of a firearm 1, to which a muffler 2 is attached. The muffler 2 and its individual parts are described below with reference to the FIGS. 2 to 29 described in detail. The firearm 1 is designed in the present case as a gun, but it can also be a rifle or a different type of firearm 1 with firearm barrel 111.

Shown is a muffler 2 for a firearm 1, wherein the firearm with a firearm barrel 111 defines a direction, with an assembly consisting of a damping element 3 with an expansion chamber 4, wherein a separately formed connection means 19 is provided for connecting the assembly to the firearm 1 wherein the connecting means 19 is provided for a particular releasable connection to the end of a firearm barrel, and on the other for releasable connection with the assembly at least one projection 22 which cooperates with a formation on the assembly by means of a positive guide by overcoming a spring force in the running direction can be brought into a positive engagement, so that the assembly is held on the connecting device 19.

The at least one elastic ring 27, 29 is held in a groove 27a, 29a on the assembly and compressed by a conical portion 19a on the connecting means 19 in the groove 27a, 29a. This is in Fig. 3 detailed. This results in that the at least one elastic ring 27, 29 is compressed in the end position of the connecting device 19 in the positive-locking position and so the spring force is exerted in the direction of the connecting device 19 against the assembly. See the history of the Fig. 6 to 10 and afterwards 2.

The projections on the connecting device 19 interact with at least two symmetrically to each other and oppositely arranged bolts 20 on the assembly together as a formation extending in an aligned at least approximately perpendicular to a longitudinal axis of the muffler 2 plane spaced from each other, and at least two at one to Engaging with the bolts 20 provided engagement member 21 arranged projections 22, wherein the engagement member 21 has a width which is smaller than the distance of the bolts 20, and wherein the projections 22 have such an extent that they are after insertion of the engagement member 21 between the Bolt 20 and a rotation of the engaging member 21, the bolts 20 engage behind and cause a locking of the engaging member 21 with the bolts 20.

Advantageously, the projections 22 on a respective inclined surface 25 which leads to a Verrastnut 26 in which the bolts 20 are in their engagement with the engagement member 21.

The assembly of the damping element 3, the expansion chamber 4 and the reflection chamber 5 are surrounded by a surrounding the damping element 3 sheath 6.

In the FIGS. 2 to 10 the damping element 3 is shown in its mounted inside the cladding tube 6 state. The connection of the damping element 3 with the cladding tube 6 takes place It can be seen that the front area facing away from the firearm 1 is closed off by means of a cover 14. The lid 14 is in the FIGS. 21 to 23 shown in more detail. It can be seen that the firing channel 9 or a section of the firing channel 9 also extends through the cover 14. Furthermore, a peripheral chamfer 15 can be seen, which cooperates with a corresponding circumferential bevel 16 on the front side of the damping element 3. Due to the two bevels 15 and 16 results in a centering of the lid 14 relative to the damping element 3. Due to the chamfer 15 on the lid 14 and the corresponding chamfer 16 on the damping element 3 is an exact alignment of extending in the lid 14 portion of the firing channel. 9 to the extending in the damping element 3 portion of the firing channel 9 and thus also a straight course of the firing channel 9 ensured by the damping element 3 and the lid 14.

In the Figures 2 . 4 and 10 Furthermore, an expansion module 17 is shown, which is removable from the muffler 2 and which forms part of the expansion chamber 4. The expansion module 17 is connected by means of a plurality of openings 18, in particular in the form of bores with the expansion chamber 4 and is preferably screwed to the damping element 3. The openings 18 are in the present case in the damping element 3 and are in particular in Fig. 14 clearly visible. The expansion module 17 extends partially over the barrel of the firearm 1, whereby the total length of the fire waffle is reduced with the muffler 2. By the expansion module 17 and the shortening achieved thereby Furthermore, the expansion chamber 4 simplifies the mechanical processing of the damping element 3. By the screw-on expansion module 17, the damping performance of the muffler 2 is also increased. Furthermore, it is possible to use expansion modules 17 of different lengths so as to vary the damping performance.

The FIGS. 2 to 10 further show a connecting device 19 which serves to connect the silencer 2 with the firearm 1. The connecting device 19 is formed in the present case so that a very simple assembly and disassembly of the muffler 2 to and from the firearm 1 is made possible.

The exemplary connection device 19 is also made in particular Fig. 2 to 9 can be seen in the area in which it is located enlarged. In the present case, the connecting device 19 has two bolts 20, which in the present case are assigned to the muffler 2, in particular the damping element 3 of the muffler 2. Furthermore, the connecting device 19 has an engagement element 21, which has two projections 22 in the present case.

The Fig. 6 to 10 and then 2 show how the assembly is mounted on a firearm barrel 111.

First, as in Fig. 6 shown basically the seal inserted, which produces the holding force of the muffler in the positive connection.

Then, the connecting device 19 gem. Fig. 7 inserted. To Fig. 8 rotated while moving forward.

And finally Fig. 9 locked to the bolt by means of the projections.

The expansion module 17 is after Fig. 10 pushed over the barrel and fixed by means of a thread. Of course, the expansion module 17 can also be previously screwed the connection between the barrel and assembly.

The structure of the muffler itself is shown in more detail in the following figures. The muffler 2 has a in the FIGS. 11 to 14 in a first and in the FIGS. 15 to 18 in a second embodiment shown damping element 3.

The damping element 3 has, in a manner known per se, an expansion chamber 4 and a reflection chamber 5. The expansion chamber 4 and the reflection chamber 5 result in connection of the damping element 3 with a in the FIGS. 19 and 20 individually shown cladding tube 6, which surrounds the damping element 3. The damping element 3 and the cladding tube 6 may for example consist of aluminum.

In the FIGS. 11 to 13 it can be seen that at least one helical wall 7 is arranged within the reflection chamber 5. In the in the FIGS. 11 to 13 illustrated embodiment is two substantially mutually parallel helical walls 7 and 8. In the embodiment of the damping element 3 according to the FIGS. 11 to 14 is through the two helical Walls 7 and 8, the reflection chamber 5 in principle divided into two sub-chambers or into two sub-chambers. By the at least one helical wall 7 and the two helical walls 7 and 8, the expansion speed of the combustion gases is reduced due to the resulting turbulence. As a result, this construction enables a simultaneous and homogeneous gas expansion in both directions, resulting in a better cooling of the gas flowing through a central firing channel 9 of the damping element 3, which is produced when the firearm 1 is fired. This gas can flow through a plurality of bores 10, which are located in the damping element 3, from the firing channel 9 in the reflection chamber 5 and in the expansion chamber 4. This overflow of the gas from the firing channel 9 into the expansion chamber 4 and / or into the reflection chamber 5 is known per se and will therefore not be described in detail below.

In the FIGS. 11, 12 and 13 is further seen that at one end of the at least one helical wall 7, in the present case at the end of the helical walls 7 and 8, a reflection chamber 5 occlusive partition member 11 is arranged. In the illustrated embodiment, respective separating elements 11 are provided at both ends of the helical walls 7 and 8. In this case, one of the separating elements 11 forms the separation between the reflection chamber 5 and the expansion chamber 4 and the other separating element 11 forms the front, ie the firearm 1 facing away from the damping element 3. The two helical walls 7 and 8 are via respective dividers 12 with the separating elements 11 connected.

In the embodiment of the damping element 3 according to the FIGS. 15 to 18 is within the reflection chamber 5, a further separating element 13 is provided, which divides the reflection chamber 5 again and thus in a total of four sub-chambers. Optionally, it is also possible to arrange two separating elements 13 parallel to each other, so as to form a separation chamber within the reflection chamber 5. This leads to an even better cooling of the gases flowing into the reflection chamber 5.

In particular in Fig. 15 It can be seen that the bores 10 extending from the firing channel 9 to the expansion chamber 4 are widened in a funnel shape. The funnel-shaped enlargement of the holes 10 is preferably provided only in such a region that a weakening of the damping element 3 is prevented.

The bores 10 which extend from the firing channel 9 into the reflection chamber 5 and into the expansion chamber 4 are arranged spirally around the circumference of the damping element 3, ie. H. They follow the course of the two spiral walls 7 and 8. In the present case, seven holes 10 are arranged over a revolution of the helical wall 7 and 8, that is, by an angle of 360 °.

The engagement member 21 with the projections 22 is in the FIGS. 24 to 29 shown connecting device 19 in the form of an adapter 23 with screw thread assigned to the essay on one end of a firearm barrel or a part thereof. The adapter 23 may for example be connected via an internal thread 24 with an external thread of the firearm 1 and preferably always remains on the firearm 1, so that the muffler 2 can be easily connected to the firearm 1 at any time. On the adapter 23 can be mounted with the same principle described below, the connecting device 19 instead of the muffler 2, a so-called and basically known muzzle brake.

The two bolts 20 extend in a direction at least approximately perpendicular to a longitudinal axis of the muffler 2 and at least approximately perpendicular to the firing channel 9 aligned plane at a distance from each other. The engagement member 21 has a width which is smaller than the distance of the two bolts 20, so that the engagement member 21 can be passed through the two bolts 20. After the insertion of the engaging member 21 between the bolts 20 and a rotation of the engaging member 21, in the present case by about 90 °, engage behind the projections 22, the bolts 20, as in Fig. 5 is shown. As a result, a latching of the engagement element 21 with the bolts 20 is effected. Finally, in this way, the damping element 3 and thereby the entire muffler 2 on the adapter 23 and thus mounted on the firearm 1.

Optionally, the connecting device 19 could also have more than the two bolts 20 and more than the two projections 22. However, it should be ensured in such a case that the protrusions 22 having engagement element 21 can still be passed through the bolts 20.

How best in Fig. 24 can be seen, the two projections 22 have a respective inclined surface 25 which to a Verrastnut 26 leads, in which the bolts 20 in their latching with the engagement member 21, ie in the in Fig. 5 position shown, are. The latching groove 26 thus forms a repository seat for the respective bolt 20 in its latched position. The transition from the inclined surface 25 into the Verrastnut 26 is preferably cured, for example by means of surface hardening to prevent wear.

In order to generate an even higher holding force of the damping element 3 and thus of the muffler 2 on the adapter 23, a sealing ring 27 is arranged on one of the firearm 1 dressed end of a central bore of the muffler 2, which extends in extension of the firing channel 9 and this , For receiving the sealing ring 27, the damping element 3 has a corresponding circumferential groove 27a.

By combining the engagement of the bolts 20 by the projections 22 and the presence of the sealing ring 27, the correct engagement of the connecting device 19 by the operator by overcoming the caused by the elastic ring 27 resistance in engaging behind the / e behind the / the Bolt 20 are felt. Furthermore, 6 marking points can be provided at corresponding locations on the cladding tube, at which the correct connection of the muffler 2 with the adapter 23 and thus with the firearm 1 are also visually recognizable. The reliably producible and releasable closure is therefore based on the positive connection between the projections 22 and the bolts 20 and the adhesion, which is supported by the sealing ring 27.

In its region facing away from the internal thread 24, the adapter 23 also has a cylindrical mating surface, which engages or bears against a corresponding bore in the damping element 3.

Another sealing ring 29 is also provided between the damping element 3 and the adapter 23 in a region remote from the firearm 1, as seen from the sealing ring 27, again with a groove 29a inserted in the damping element 3 to receive the sealing ring 29. The two sealing rings 27 and 29 are also in the enlarged view of Fig. 3 to recognize.

Between the muffler 2 and the firearm 1 is further provided an anti-rotation 31a, 31b and 31c, which is a in Fig. 12 having to be recognized threaded hole 31a. In the threaded hole 31 a can in Fig. 2 and 5 illustrated grub screw 31b are screwed, which engages in the assembly of the muffler 2 on the connecting device 19 designed as an adapter 23 in a guide groove 31c. See also Fig. 24 . 28 and 29 , Due to the presence of the two projections 22 which engage behind the two bolts 20, the muffler 2 could in principle be mounted in two positions rotated by 180 ° relative to one another on the firearm 1 or on the adapter 23. In order to assemble the muffler 2 only in a preferred position in which, for example, the muffler 2 is aligned more precisely with respect to the firearm 1, the threaded pin described above is screwed into the threaded hole 31 a. Since the adapter 23 has only one guide groove 31c, the muffler 2 can be fixed in this way only in exactly one position on the adapter 23. By way of example, the concentricity of the section of the firing channel 9 extending in the cover 14 relative to that of the firearm 1 can be measured by means of a dial indicator and thus the preferred mounting position of the silencer 2 on the firearm 1 can be determined.

In Fig. 27 It should also be noted that the adapter 23 has a plurality of flats 32 formed by grooves in the otherwise cylindrical body of the adapter 23 and which serve to bring a tool into engagement with the adapter 23 to provide it with sufficient high force on the external thread of the firearm 1 and the barrel 111 to screw.

Claims (10)

1. A silencer (2) for a firearm (1), wherein the firearm with a firearm barrel (111) defines a running direction, with an assembly consisting of a damping element (3) with an expansion chamber (4),
   wherein a separately formed connection means (19) for connecting the assembly to the firearm (1) is provided,
   wherein the connecting means (19) is provided for a particular releasable connection with the end of a firearm barrel,
   and on the other hand for releasable connection with the assembly at least one projection (22),
   which can be brought into cooperation with a molding on the assembly by means of a positive guide by overcoming a spring force in the direction of rotation in an interlocking fit, so that the assembly is held on the connecting device (19), whereas
   the assembly comprises at least two bolts (20) cooperating with the connecting means (19), which bolts in particular are symmetrical to each other and oppositely arranged, as a molding, which bolts extend on a plane at least approximately perpendicular to a longitudinal axis of the silencer (2) and spaced apart from one another, and at least two projections (22) arranged on an engagement element (21) provided for engagement with the bolts (20), wherein the engagement member (21) has a width which is smaller than the distance of the bolts (20), and wherein the projections (22) have such an extension, that after insertion of the engagement element (21) between the bolts (20) and a rotation of the engagement element (21), mesh into the bolts (20) and cause the engagement element (21) to lock in the bolts (20).
2. A silencer (2) according to claim 1, characterised in
   that at least one elastic ring (27, 29) is arranged between the assembly and connecting means (19), which ring is compressed in the positive-locking position at least in the end position of the connecting device (19) and thus exerts the spring force in the direction of the connecting device (19) against the assembly.
3. A silencer (2) according to claim 1 or 2, characterised in
   that said at least one elastic ring (27, 29) is held in a groove (27a, 29a) on the assembly and compressed by a conical portion (19c) on the connecting means (19) in the groove (27a, 29a).
4. A silencer according to one of claims 1 to 3, characterised in
   that the projections (22) have a respective oblique surface (25) which leads to a latching groove (26) in which the bolts (20) are locked in the engagement element (21).
5. A silencer (2) according to any of the claims 1 to 4, characterised in
   that the assembly consists of a damping element (3) which has an expansion chamber (4) and a reflection chamber (5) with a cladding tube (6) surrounding the damping element (3).
6. A silencer according to one of claims 1 to 5, characterised in
   that at least one sealing ring (29) for sealing against the expansion chamber (4) is arranged at the end of the central bore of the silencer (3) and facing the firearm (1).
7. A silencer according to one of claims 1 to 6, characterised in
   that an anti-rotation device (31a, 31b, 31c) is formed between the silencer (2) and the firearm (1), with a molding, in particular in the form of a grub screw 31b, which engages in a release position 31c which is formed asymmetrical at the connecting device (19), in particular in the form of a groove.
8. A silencer according to one of claims 6 or 7, characterised in
   that at least some of the connecting bores (10), which extend from a firing channel (9) to the expansion chamber (4) and/or a reflection chamber (5) in the assembly, are designed to expand radially.
9. A silencer according to one of claims 1 to 8, characterised in
   that at least one portion of the expansion chamber (4) is associated with an expansion module (17) which can be removed from the silencer (3).
10. A silencer according to claim 9, characterised in
    that the expansion module (17) is connected to the expansion chamber (4) by means of a plurality of openings (18).

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