EP3699541B1 - System for mounting of a sound suppressor to a barrel of a firearm - Google Patents

Description

FIELD OF THE INVENTION

• ein eine erste Längsachse aufweisendes Mündungselement, welches über einen Anbindungsabschnitt direkt oder indirekt am Lauf der Schusswaffe befestigbar ist;
• ein eine zweite Längsachse aufweisendes Verbindungselement, welches direkt oder indirekt mit dem Schalldämpfer verbindbar ist und zumindest abschnittsweise über das Mündungselement schiebbar ist, wobei das Verbindungselement und das Mündungselement in einer Montageposition, in welcher die erste Längsachse und die zweite Längsachse in einer gemeinsamen Längsachse zusammenfallen, mechanisch miteinander verriegelbar sind.

The invention relates to a system for mounting a silencer on a barrel of a firearm, comprising the system

• a mouth element which has a first longitudinal axis and which can be fastened directly or indirectly to the barrel of the firearm via a connection section;
• a connecting element having a second longitudinal axis, which can be connected directly or indirectly to the silencer and at least in sections can be pushed over the mouth element, the connecting element and the mouth element in an assembly position in which the first longitudinal axis and the second longitudinal axis coincide in a common longitudinal axis, are mechanically interlocked.

The mechanical locking ensures that a silencer mounted on the barrel by means of the system does not detach itself from the barrel, at least during the correct firing of a shot by the firearm, and so on the one hand the functionality of the silencer is preserved and on the other hand safe use of the firearm is guaranteed. It is advantageous if the mechanical locking also enables the usual handling or the typical transport of the firearm with the mounted silencer without the silencer becoming detached from the firearm. However, it should generally be possible to remove the silencer from the barrel by unlocking it.

STATE OF THE ART

In the field of weapons technology, a large number of different systems are known by means of which a silencer can be detachably mounted on the barrel of firearms can (e.g. US 2009/193963 A1 ). Such systems basically consist of a muzzle element which can be attached directly to the barrel and a connecting element which can be connected to the silencer or which is formed by the silencer. The muffler together with the connecting element is usually plugged onto the mouth element. For the mechanical locking, a separate locking element is necessary, by means of which the secure mechanical locking is effected. The locking element can function, for example, on the basis of spring force, on the basis of a displaceable bolt or on the basis of a tensioning lever.

A disadvantage of the prior art is that, on the one hand, to mount the silencer on the barrel by means of the known systems, a plurality of different handles is always necessary to lock the connecting element to the muzzle element, which prevents the silencer from being quickly assembled or disassembled . On the other hand, the sometimes complex structure of the locking elements means that they cannot be reliably actuated if they are dirty or if they are used frequently.

OBJECT OF THE INVENTION

It is therefore an object of the invention to overcome the disadvantages of the prior art and to propose a system for mounting a silencer on a barrel of a firearm which enables the silencer to be installed easily, quickly and safely without a separate locking element having to be actuated .

DISCLOSURE OF THE INVENTION

• ein eine erste Längsachse aufweisendes Mündungselement, welches über einen Anbindungsabschnitt direkt oder indirekt am Lauf der Schusswaffe befestigbar ist;
• ein eine zweite Längsachse aufweisendes Verbindungselement, welches direkt oder indirekt mit dem Schalldämpfer verbindbar ist und zumindest abschnittsweise über das Mündungselement schiebbar ist,

wobei das Verbindungselement und das Mündungselement in einer Montageposition, in welcher die erste Längsachse und die zweite Längsachse in einer gemeinsamen Längsachse zusammenfallen, mechanisch miteinander verriegelbar sind, dadurch gelöst, dass das Mündungselement eine erste Zentrierfläche sowie zumindest zwei erste Fixierelemente aufweist, dass das Verbindungselement eine zweite Zentrierfläche sowie zumindest zwei mit den ersten Fixierelementen korrespondierende zweite Fixierelemente aufweist, wobei die zumindest zwei ersten Fixierelemente und die zumindest zwei zweiten Fixierelemente ausgebildet sind, um in einem ersten Schritt durch Ineinanderschieben von Mündungselement und Verbindungselement in Richtung der gemeinsamen Längsachse in einer Einschubposition miteinander in Eingriff gebracht zu werden und in einem zweiten Schritt aus der Einschubposition durch eine Verschwenkung von Mündungselement und Verbindungselement um die gemeinsame Längsachse relativ zueinander in die Montageposition gebracht zu werden, wobei die zumindest zwei ersten Fixierelemente und die zumindest zwei zweiten Fixierelemente weiters derart ausgebildet sind, dass durch das Zusammenwirken der ersten Fixierelemente und der zweiten Fixierelemente während der Verschwenkung von der Einschubposition in die Montageposition die Zentrierflächen aneinander gepresst werden, sodass Mündungselement und Verbindungselement in der Montageposition miteinander verriegelt sind.This object is achieved in a system according to the invention for mounting a silencer on a barrel of a firearm, comprising the system

• a mouth element which has a first longitudinal axis and which can be fastened directly or indirectly to the barrel of the firearm via a connection section;
• a connecting element having a second longitudinal axis, which can be connected directly or indirectly to the silencer and at least in sections can be pushed over the mouth element,

wherein the connecting element and the mouth element can be mechanically locked to one another in an assembly position in which the first longitudinal axis and the second longitudinal axis coincide in a common longitudinal axis second centering surface as well as at least two second fixing elements corresponding to the first fixing elements, wherein the at least two first fixing elements and the at least two second fixing elements are designed to be inserted into one another in a first step by sliding the mouth element and connecting element into one another in the direction of the common longitudinal axis in an insertion position To be brought into engagement and in a second step out of the insertion position by pivoting the mouth element and connecting element about the common longitudinal axis relative to one another into the assembly to be brought eposition, wherein the at least two first fixing elements and the at least two second fixing elements are further designed such that the centering surfaces are pressed against one another by the interaction of the first fixing elements and the second fixing elements during the pivoting from the insertion position into the assembly position, so that the mouth element and connecting element are locked together in the assembly position.

One aspect of the invention relates to the centering surfaces formed on the mouth element and the connecting element, which are used to make contact with one another and through the contacting the mouth element and connecting element relative to one another or relative to the common longitudinal axis center. The two centering surfaces are usually designed to correspond to one another, so that the largest possible contact surface is achieved. This can be achieved, for example, in that the centering surfaces are conical and have the same or only a slightly different opening angle.

The centering surfaces that contact one another in the assembly position mean that the connecting element and thus also the silencer that can be fastened to the connecting element are aligned centrally with respect to the opening element. When the muzzle element is mounted centered on the barrel, the common longitudinal axis of the assembled system is also centered in the assembly position relative to the barrel core axis of the barrel, so that the common longitudinal axis advantageously forms a continuation of the barrel core axis.

In order to achieve a secure and uniform locking at at least two points, the mouth element has at least two first fixing elements and the connecting element has at least two second fixing elements which correspond to the first fixing elements. The mutually corresponding design ensures that, on the one hand, the mouthpiece and the connecting piece have the same number of fixing elements and, on the other hand, the shapes and dimensions of the fixing elements formed by the mouthpiece and the connecting piece enable contacting and locking with one another. Exactly two fixing elements can be provided as well as three, four, six or more fixing elements.

Another aspect of the invention relates to the structural design of the at least two first fixing elements of the mouth element and the at least two second fixing elements of the connecting element. The structural design of the fixing elements enables, on the one hand, that the connecting element can be pushed onto the mouthpiece, in that the fixing elements are designed to be brought into engagement with one another in an insertion position in the first step by sliding the mouth element and connecting element into one another, preferably in the direction of the longitudinal axis. On the other hand, the structural design of the fixing elements enables the mouth element and connecting element with already engaged fixing elements to be pivoted relative to one another about the common axis into the assembly position in which the mouth element and connecting element are locked to one another, in that the fixing elements are designed to allow in the second step to be brought from the insertion position by pivoting the mouth element and connecting element about the common longitudinal axis relative to one another into the assembly position.

It is advantageous here that the first fixing elements are guided through the second fixing elements (or vice versa) in order to enable high positioning accuracy and simple handling. It is, for example, conceivable that the first fixing elements formed on the mouth element or the second fixing elements formed on the connecting element are configured like a link and the other fixing elements are guided as guide lugs in the link-like, preferably having link sections. The fixing elements, which are configured like a link, can have an essentially axially extending axial section for the first step of sliding into one another and a substantially radially extending radial section for the second step of pivoting.

In order to ensure that the muzzle element and connecting element are not only pivoted relative to one another, but that the muzzle element and connecting element are locked to one another and cannot detach from one another with sufficient security during a proper firing of a shot, the pivoting of the first, which is in engagement with one another Fixing elements and second fixing elements generate a clamping force against one another, which presses the centering surfaces of the mouth element and connecting element against one another. This clamping force can be generated, for example, by an elastic deflection or deformation of the first or second fixing elements caused by the pivoting. Such an elastic deformation of the fixing elements formed by the mouth element or the connecting element can be achieved, for example, by spreading or a deflection by changing the relative distances between centering surfaces and fixing elements, wherein such a deflection can be brought about by a forced deflection predetermined by the other fixing elements. In particular, such a clamping force can be achieved by a corresponding design of the course of the first or second fixing elements, which are configured like a connecting link, in particular their essentially radially extending radial sections. Correspondingly, the first and the second fixing elements are designed in such a way that the centering surfaces are pressed against one another by the interaction of the first fixing elements and the second fixing elements during the pivoting from the insertion position into the assembly position. It is particularly advantageous if the clamping force increases, preferably linearly, as the pivot angle increases.

Due to the inventive design of the fixing elements, a single two-stage movement, namely the telescoping and pivoting, a secure locking between the mouth element and connecting element can be achieved without an additional locking element being necessary.

In one embodiment of the invention it is provided that the first centering surface and the second centering surface are designed such that a non-positive connection exists or is established between the centering surfaces in the assembly position and that the first fixing elements and the second fixing elements are designed such that between the first fixing elements and the second Fixing elements in the assembly position a positive connection exists or is established. A particularly secure locking can be achieved in the assembly position through the combination of a force-fit connection, in particular through frictional and clamping forces, and a form-fit connection. This is particularly because the non-positive connection between the centering surfaces is achieved by pivoting, which is also necessary in order to move the system from the insertion position into the assembly position and thus to establish the form-fit. In this context, too, it is particularly advantageous if the first or the second fixing elements are designed in the manner of a link in order to produce the form fit in the assembly position and to exert the clamping force from which the force fit results. A further advantageous effect can be achieved if the centering surfaces are conical in relation to the longitudinal axes and the opening angle is selected in such a way that there is self-locking.

According to a further embodiment of the system according to the invention, it is provided that each first fixing element has a first axial locking surface and each second fixing element has a second axial locking surface for contacting the first axial locking surface of the mouth element during the pivoting from the insertion position into the assembly position, the first being axial Locking surfaces or the second axial locking surfaces are designed as a screw surface in relation to the respective longitudinal axis. The first locking surfaces formed by the first fixing elements are in engagement with the second locking surfaces of the second fixing elements at least during the pivoting and contact them. For example, the locking surfaces of the first or second fixing elements can be formed by side walls of the link sections, in particular the radial sections. Axial alignment is to be understood as meaning that the locking surfaces are transverse to the are aligned with the respective longitudinal axis and are not aligned parallel to the respective longitudinal axis.

Because the first locking surfaces of the first fixing elements of the mouth element or the second locking surfaces of the second fixing elements of the connecting element are designed as screw surfaces, the clamping force acting on the centering surfaces can be generated by the sliding of the locking surfaces during pivoting, since the locking surfaces, which are not in the form of screw surfaces, can be generated by the screw surface-shaped locking surfaces are elastically deflected or deformed and corresponding tensions are brought about in the mouth element and / or in the connecting element between the fixing elements. The design as a screw surface also ensures that the clamping force increases linearly, at least in sections, with increasing pivoting angle.

In order to achieve a particularly advantageous effect, the other locking surfaces are not designed in the form of screw surfaces. However, it is entirely conceivable that the locking surfaces have a curvature or the screw surface does not have a constant slope.

The locking surfaces are particularly easy to manufacture and kinematically designed when the screw surface is designed as a helical surface so that the individual generating straight lines of the screw surface are normal to the respective longitudinal axis, and when the other locking surfaces are oriented normal to the respective longitudinal axis, around the largest possible contact surface to reach. Due to the appropriately designed locking surfaces, for example, simple production using a conventional CNC milling machine is also easily possible. A preferred embodiment variant therefore provides that the locking surfaces designed as screw surfaces are designed as helical surfaces and those locking surfaces which are not are designed as a helical surface, are aligned normal to the respective longitudinal axis.

Another preferred embodiment of the invention provides that the locking surface designed as a screw surface has a pitch of between 1 mm and 3 mm, in particular between 1.2 mm and 2 mm, preferably between 1.4 mm and 1.5 mm per 90 ° screw angle has, the screw angle between 30 ° and 120 °, preferably between 60 ° and 100 °, in particular at 80 ° +/- 5 °. In other words, the normal distance between a normal plane passing through the starting point of the screw surface and a normal plane passing through a point of the screw surface defined by means of a screw by a quarter turn, i.e. 90 °, is between 1 mm and 3 mm. The extension of the screw surface is at a screw angle between 30 ° and 120 °, the number of fixing elements being decisive for the choice of pitch height and screw angle. The specified values are particularly suitable for mouth elements and connecting elements made of a metallic material, in particular steel, particularly preferably a heat-treatable steel, since the dimensions related to the modulus of elasticity of metallic materials such as steel cause an advantageous clamping force.

According to a further embodiment of the invention, it is provided that the at least two first fixing elements in the mouth element are designed as link-like recesses formed in the direction of the first longitudinal axis and each have a first axial locking surface and that the at least two second fixing elements in the connecting element than in the direction of the second longitudinal axis aligned guide lugs are formed and each have a second axial locking surface, wherein the first axial locking surfaces are formed with respect to the first longitudinal axis screw surface-shaped. Regarding the advantageous combination of link-shaped sections and guide lugs guided therein as well as screw surface-shaped, in particular helical surface-shaped, To avoid repetition, reference is made to the corresponding explanations above for locking surfaces. Because the first fixing elements are designed as link-shaped recesses, the mouthpiece has no protruding parts or geometries which could lead to injury to the user if the mouthpiece is mounted on the barrel. This also makes it possible for the muzzle piece to remain permanently mounted on the barrel without the connecting element having to be locked all the time. The guide lugs are formed in the interior of the connecting element and are directed inwards, so that there is no risk of injury here either during the assembly of the system.

In order to enable the most uniform possible locking and force distribution, a further embodiment of the invention provides that the at least two first fixing elements are arranged symmetrically to the first longitudinal axis and that the at least two second fixing elements are arranged symmetrically to the second longitudinal axis. For example, two fixing elements are each offset from one another by 180 ° or three fixing elements are offset from one another by 120 ° each. Of course, in alternative design variants it is also conceivable to arrange the fixing elements asymmetrically, for example in order to always ensure that the silencer is aligned relative to the barrel.

In a further embodiment variant of the invention it is provided that the mouth element has three first fixing elements and the connecting element has three second fixing elements. This represents a particularly advantageous combination of the distribution of the clamping force, manufacturing effort and operational reliability.

To connect the connecting element to the muffler, it is usually necessary to apply a torque to the connecting element. As the connecting element is usually almost completely accommodated in the muffler and external attachment edges are avoided should be, it is advantageous to apply the torque via the, preferably located in the interior of the connecting element, second fixing elements. The second fixing elements are therefore arranged in such a way that a hexagonal element, that is to say an element which is at least partially prismatic with a regular hexagonal outline, can be inserted into the connecting element and rests against the fixing elements. A torque can thus be introduced into the connecting element by rotating the hexagonal element. Therefore, a further preferred embodiment of the system according to the invention provides that the second fixing elements are arranged such that a hexagonal element can be inserted into the connecting element, each second fixing element being contactable with a different surface of the hexagonal element.

In order to enable a particularly simple attachment of the mouth element to the barrel or to an intermediate element, for example a thread adapter, a further variant embodiment provides that the connection section of the mouth element is designed as a threaded section.

A further variant of the invention provides that the system further comprises a thread adapter which has a first adapter thread section for screwing to a barrel thread section formed on the barrel and a second adapter thread section for screwing to the connecting section of the mouth element formed as a thread section . By using a thread adapter, it is possible to use a structurally identical system for mounting the silencer for a large number of different barrels or different firearms, since the connection section of the muzzle element does not have to be adapted to the respective barrel. The muzzle piece is fastened indirectly via the interposed thread adapter, so that only a corresponding thread adapter has to be selected in order to fasten the muzzle piece to the barrel.

According to a further embodiment of the system according to the invention, it is provided that the connecting element forms a bottom surface of the silencer and a housing of the silencer can be connected, preferably screwed, to the connecting element via a connecting section. The fact that the connecting element forms a bottom surface of the silencer enables a particularly space-saving construction and connection of the silencer to the barrel. The connection of the housing of the muffler or a support element of the muffler by means of a connecting section, preferably by means of a threaded section, enables simple assembly and disassembly of the muffler, for example for cleaning purposes.

In order to prevent dirt and soot particles from getting from the inside of the silencer to the centering surfaces or the fixing elements, a further variant embodiment of the invention provides that the mouth element has a first sealing section and the connecting element has a second sealing section corresponding to the first sealing section, wherein the sealing sections preferably have sealing grooves designed as a labyrinth seal. It is advantageous if the first sealing section is arranged behind the first fixing elements and the first centering surface of the muzzle element in the weft direction and the second sealing section is arranged behind the second fixing elements and the second centering surface of the connecting element in the weft direction.

To reduce the recoil when the firearm is fired, a further variant embodiment of the invention provides that the muzzle element is designed as a muzzle brake and has a plurality of radial deflection bores. In other words, the muzzle element has a muzzle brake section. Thus, the muzzle piece also fulfills a technical purpose as a muzzle brake when the silencer is dismantled. The deflection holes are included in the form of a reactive muzzle brake distributed over the circumference and arranged in several rows.

The invention also relates to a firearm comprising a barrel and a system according to the invention which is in the assembly position, the muzzle element being attached to the barrel directly or indirectly, preferably indirectly via a thread adapter, a silencer on the connecting element, preferably by means of a connecting section is mounted, wherein the connecting element is pushed at least in sections over the mouth element and is pivoted relative to the insertion position, the at least two first fixing elements of the mouth element and the at least two second fixing elements of the connecting element engage in one another and the first centering surface of the The mouth element and the second centering surface of the connecting element are pressed against one another, so that the mouth element and the connecting element are locked together. It is thus a firearm that is coupled to a silencer mounted via the system according to the invention, the silencer being locked in the mounting position via the fixing elements and the centering surfaces.

BRIEF DESCRIPTION OF THE FIGURES

The invention will now be explained in more detail using an exemplary embodiment. The drawings are exemplary and are intended to explain the concept of the invention, but in no way restrict it or reproduce it conclusively.

Fig. 1

eine Explosionsdarstellung eines Ausführungsbeispiels eines erfindungsgemäßen Systems,

Fig. 2

eine Seitenansicht eines erfindungsgemäßen Mündungselements aus Fig. 1;

Fig. 3

eine Schnittansicht des Mündungselements gemäß Linie AA aus Fig. 2;

Fig. 4a

eine dreidimensionale Ansicht eines erfindungsgemäßen Verbindungselements aus Fig. 1 im Eingriff mit einem Sechskantelement;

Fig. 4b

eine Frontalansicht gemäß Fig. 4a;

Fig. 5

eine Schnittansicht des Verbindungselements aus Fig. 1;

Fig. 6a,6b,6c

unterschiedliche Ansichten des Systems gemäß Fig. 1 in einer ersten Position;

Fig. 7a,7b,7c

unterschiedliche Ansichten des Systems gemäß Fig. 1 in einer Einschubposition;

Fig. 8

eine Frontalansicht des Systems gemäß Fig. 1 in einer Montageposition;

Fig. 9

einen Längsschnitt des Systems gemäß Linie BB aus Fig. 6;

Fig. 10

Querschnitt des Systems gemäß Fig. 1 in der gegenüber der Einschubposition verschwenkten Montageposition;

Fig. 11

Längsschnitt eines mittels eines erfindungsgemäßen Systems am Lauf einer Schusswaffe montierten Schalldämpfers.

It shows:

Fig. 1

an exploded view of an embodiment of a system according to the invention,

Fig. 2

a side view of a mouth element according to the invention from Fig. 1 ;

Fig. 3

a sectional view of the mouth element according to line AA Fig. 2 ;

Figure 4a

a three-dimensional view of a connecting element according to the invention Fig. 1 in engagement with a hexagonal element;

Figure 4b

a front view according to Figure 4a ;

Fig. 5

a sectional view of the connecting element Fig. 1 ;

Figures 6a, 6b, 6c

different views of the system according to Fig. 1 in a first position;

Figures 7a, 7b, 7c

different views of the system according to Fig. 1 in an insertion position;

Fig. 8

a front view of the system according to Fig. 1 in a mounting position;

Fig. 9

a longitudinal section of the system according to line BB Fig. 6 ;

Fig. 10

Cross-section of the system according to Fig. 1 in the mounting position pivoted with respect to the insertion position;

Fig. 11

Longitudinal section of a silencer mounted on the barrel of a firearm by means of a system according to the invention.

WAYS OF CARRYING OUT THE INVENTION

Figure 1 shows an embodiment of a system according to the invention for mounting a silencer 3 on a barrel 4 of a firearm (see FIG. 12). The system comprises a muzzle element 1, which can be connected to the barrel 4 of the firearm directly or indirectly via a connection section 8, and a connection element 2 on which the silencer 3 can be mounted.

The mouth element 1 and the connecting element 2 are in an assembly position (see e.g. Fig. 6 , 10a, 10b ) can be mechanically locked to one another in order to prevent unintentional loosening of the mouth element 1 and connecting element 2 and thus to be able to ensure a secure fit of the silencer 3 on the barrel 4. Due to the mechanical locking Muzzle element 1 and connecting element 2 can also be detached from one another in a simple manner in order to be able to quickly separate the silencer 3 from the barrel 4.

The mouth element 1 has a first longitudinal axis 5, which in the present exemplary embodiment represents an axis of rotation for at least the outer contours of the mouth element 1. This makes it possible, for example, that some production steps for producing the mouth element 1 can be carried out by means of a lathe or a CNC lathe. The muzzle element 1 has a through-hole which is necessary so that a bullet fired from the firearm can reach the silencer 3 via the muzzle element 1.

The muzzle element 1 also has a muzzle brake section 25 on the side facing away from the connection section 8 (see FIG Fig. 2 ), in which a plurality of radial deflection bores 20 are arranged to dampen the recoil when the firearm is fired. In the present embodiment, the muzzle brake section 25 is designed in the manner of a reactive muzzle brake and has four rows a each of eight radially distributed deflection bores 20, with only one deflection bore 20 per row being provided with a reference number for the sake of clarity.

The connecting element 2 is designed like a sleeve so that it can be pushed over the mouth element 1 at least in sections. The connecting element 2 has a second longitudinal axis 6, the second longitudinal axis 6 representing an axis of rotation for at least the outer contours of the connecting element 2, so that the connecting element 2 can also be at least partially manufactured as a turned part.

In the present exemplary embodiment, both the mouth element 1 and the connecting element 2 are made from a heat-treatable steel, more precisely from 42CrMo4, the surfaces being hardened.

In order to be able to lock the mouth element 1 with the connecting element 2, the mouth element 1 has three first fixing elements 9 and a first centering surface 10. Analogously to this, the connecting element 2 has a second centering surface 13 and three second fixing elements 12, which correspond to the respective corresponding first fixing elements 9 and the first centering surface 10 of the mouth element 1. Due to the structural design of the first and second fixing elements 9, 12 and the first and second centering surface 10, 13, which will be described in detail below, the following locking mechanism is implemented:
If the longitudinal axes 5, 6 of the mouth element 1 and connecting element 2 are aligned coaxially with one another, so that the first longitudinal axis 5 and second longitudinal axis 6 coincide in a common longitudinal axis 7, the mouth element 1 and connecting element 2 can be pushed into one another in a first step, with the first fixing elements 9 and the second fixing elements 12 are in engagement with one another and are mutually guided. If a slot position (see Figures 7a, 7b, 7c ) is reached, the mouth element 1 and connecting element 2 are pivoted relative to each other into an assembly position in a second step (see Figure 8, 9 , 10 ). Due to the structural design of the fixing elements 9, 12, the centering surfaces 10, 13 are pressed against one another by means of the pivoting. As a result, a positive connection is established in the assembly position between the first fixing elements 9 and the second fixing elements 12 and a non-positive connection is established between the first centering surface 10 and the second centering surface 13, whereby the mouth element 1 and the connecting element 2 are locked accordingly.

the Figures 2 and 3 show a detailed representation of the mouth element 1, in which the structural design can be seen. The mouth element 1 comprises the above described muzzle brake section 25, which has the smallest outer diameter and merges into a first sealing section 18. In the first sealing section 18, two radial sealing grooves 24 spaced apart from one another in the axial direction are arranged, which correspondingly interact with the sealing grooves 24 of the corresponding second sealing section 19 of the connecting element 2 in the manner of a labyrinth seal (see FIG Fig. 5 respectively. Fig. 9 ).

The first centering surface 10, which in the present exemplary embodiment is conical to the first longitudinal axis 5, is formed next to the first sealing section 18. The diameter of the conical first centering surface 10 tapers in the direction of the muzzle brake section 25.

The three first fixing elements 9 are designed as link-like recesses in the present exemplary embodiment, each first fixing element 9 having an axial link section 9b extending axially to the first longitudinal axis 5, via which the telescoping is realized. The axial link section 9b forms an opening in the first centering surface 10, via which the second fixing elements 12 can be pushed into the mouth element 1. On the other hand, each first fixing element 9 comprises a radial link section 9a which adjoins the axial link section 9b and which extends essentially in the circumferential direction in relation to the first longitudinal axis 5. Since the first fixing elements 9 are designed as a recess, a locking web 11a is formed between the first centering surface 10 and the radial link section 9a. The radial link section 9a has, on the one hand, a first locking surface 11 formed by the locking web 11a and, on the other hand, has a guide surface 27 opposite the locking surface 11.

In order to ensure that the first centering surface 10 and the second centering surface 13 are pressed against one another by pivoting from the insertion position into the assembly position, the first locking surface 11 is designed as a screw surface in the present embodiment, so that the distance between the first locking surface 11 and the first centering surface 10 increases the further the radial link section 9a is removed in the circumferential direction from the axial link section 9b. In the present exemplary embodiment, the height of the slope between the beginning and the end of the radial link section 9a is 1.3 mm at a helix angle of 81 °.

The screw axis is formed by the first longitudinal axis 5. Since the first fixing elements 9 in the present exemplary embodiment can be produced by means of a milling process, the guide surfaces 27 are accordingly designed to run parallel to the first locking surfaces 11 and also form a parallel screw surface.

It is advantageous if the screw surfaces are designed as helical surfaces, which can be achieved, for example, by a milling process with a cylindrical milling head, so that the generators of the screw surface are each normal to the first longitudinal axis 5.

As in Figure 3 As can be seen, the mouth element 1 has three identically designed first fixing elements 9, which are distributed symmetrically to the first longitudinal axis 5 and are each offset from one another by 120 °. An intermediate web 26 is formed between two first fixing elements 9. Each radial link section 9a of the respective first fixing element 9 extends over an angle of approximately 80 °. In order to be able to guarantee the function even with manufacturing-related tolerance fluctuations, the radial link section 9a is longer than necessary to achieve the clamping force, so that the second fixing elements 12 usually the intermediate web 26 at the end of the axial link section 9a in the assembly position - such as in Fig. 10 shown - do not contact.

In the Figures 4a, 4b and 5 the connecting element 2 is shown in detail. It is in the Figures 4a and 4b On the one hand, it can be seen that the connecting element 2 has three second fixing elements 12, which are designed as guide lugs oriented inwardly in the direction of the second longitudinal axis 6. The three second fixing elements 12 - like the first fixing elements 9 - are arranged symmetrically to the second longitudinal axis 6 and are each offset from one another by 120 °. the Figures 4a and 4b also show a hexagonal element 21 which is inserted into the connecting element 2. The second fixing elements 12 are designed in such a way that each second fixing element 12 can be contacted by a side surface of the hexagonal element 21. As a result, the connecting element 2 can be fastened to the silencer 3 in a simple manner by means of the hexagonal element 21 or connected to a housing 16 of the silencer 3 by introducing a torque via the hexagonal element 21. This means that no external geometries are necessary for introducing a torque. In the present exemplary embodiment, the hexagonal element 21 has a width across flats of 20 mm.

Figure 5 FIG. 11 shows a sectional view of the connecting element 2, wherein it can be seen in particular that the connecting element 2 also has a through-hole in order to be able to be pushed onto the mouth element 1. Furthermore, the inner second sealing section 19 can also be seen with two axially spaced sealing grooves 24. The second sealing section 19 merges into the second centering surface 13 which, in the present exemplary embodiment, is conical to the second longitudinal axis 6. The diameter of the conical second centering surface 13 tapers from the attachment of the second fixing elements 12 to the second sealing section 19, the opening angle of the cone corresponding to the opening angle of the cone of the first centering surface 10 by the largest possible To achieve contact surface. The second fixing elements 12 each have a second locking surface 14 facing the second centering surface 13, which in the present exemplary embodiment is oriented normally to the second longitudinal axis 6. The side of the second fixing elements 12 facing away from the second centering surface 13 is provided with a bevel, so that the cross section of the second fixing elements 12 is reduced from the attachment to the free end. This improves elastic deformation of the second fixing elements 12, which are designed as guide lugs, in the context of the pivoting in order to generate a clamping force.

The connecting element 2 has a larger outer diameter on the side facing the mouthpiece 1 and having the second fixing elements 12. That section with a larger outer diameter is designed as a housing section 28 in the present exemplary embodiment. The housing of the silencer 3 can be pushed or pressed onto this housing section 28, so that the connecting element 2 in the assembled state (see FIG Fig. 11 ) forms a bottom surface of the muffler 3. The housing section 28 has a shoulder designed as a stop.

On the side facing away from the mouthpiece 1, the connecting element 2 has a shoulder which forms a transition to an area with a smaller diameter. This section of the connecting element 2 with a smaller diameter, which is arranged inside the silencer 3 in the assembled state, has a connecting section 23 by means of which the silencer 3 can further be fixed on the connecting element 2. In the present example, the connecting section 23 is designed as a threaded section.

Based on Figures 6abc, 7abc , 8, 9 and 10 the following explains how the system can be transferred from a non-assembled state to an assembled state.

In the Figures 6a, 6b, 6c It can be seen that the mouth piece 1 and connecting piece 2 are aligned coaxially to the common longitudinal axis 7, the second fixing elements 12 of the connecting element 2, which are designed as guide lugs, being inserted into the first fixing elements 9 of the mouth element 1, more precisely into the axial link sections 9b. Those areas of the connecting element 2 which lie in the circumferential direction between the second fixing elements 12 are pushed over the locking web 11a.

In the Figures 7a, 7b, 7c is the connecting element 2 opposite that in the Figures 6a, 6b, 6c position shown in the direction of the common longitudinal axis 7 or in the direction of the in Figure 6c arrow shown and is in the insertion position. The second fixing elements 12 of the connecting element 2, which are designed as guide lugs, are completely pushed into the axial link sections 9b so that the first locking surfaces 11 and the second locking surfaces 14 can be brought into engagement with one another or the second fixing elements 12 can be transferred into the radial link section 9a in order to to be able to pivot the connecting piece 2 relative to the mouthpiece 1. The first centering surface 10 rests against the second centering surface 13 or is only slightly spaced therefrom.

Figure 8 shows the system in the assembly position in which connecting element 2 and mouth element 1 are pivoted relative to each other by a pivot angle α in relation to the insertion position, the pivot angle α in the present exemplary embodiment being approximately 60 ° +/- 5 °. Due to the partial section shown, a second fixing element 12 and the corresponding axial link section 9b can be seen, the pivoting being evident from their relative position. In Figure 10 a full section is shown which shows all three first fixing elements 9 and second fixing elements 12.

In Figure 9 it can be seen that the first locking surfaces 11 contact the second locking surfaces 14 and thus the first centering surface 10 and the second centering surface 13 are pressed against one another. This pressing or clamping force is achieved by the design of the first fixing elements 9 described above: Since the radial link sections 9a follow a helical line, the pivoting through the pivot angle α causes the second locking surfaces 14 of the second fixing elements 12 to become increasingly outward with increasing pivoting pressed and thus elastically deformed. Due to Hooke's law, the elastic deformation creates tensions in the second fixing elements 9, so that a clamping force caused by the fixing elements 9, 12 the

Centering surfaces 10, 13 pressed against one another and thus effected the locking. It is particularly advantageous if the slope of the conical centering surfaces 10, 13 causes self-locking.

If the steps are carried out in reverse order, the connecting element 2 and the mouth element 1 can be separated again in a simple manner by first pivoting the connecting element 2 back into the insertion position and pulling it down in the axial direction from the mouth element 1 in a second step .

In conclusion shows Figure 11 the system according to the invention in the assembly position in the assembled state. The muzzle piece 1 is indirectly connected to the barrel 4 of the firearm via a threaded adapter 15. For this purpose, the connection section 8 of the mouth element 1 is designed as a threaded section into which a second adapter threaded section 17 of the threaded adapter 15 is screwed. Correspondingly, the inside diameter of the connection section 8 is larger than the inside diameter of the muzzle brake section 25 in order to be able to accommodate the thread adapter 15. The barrel 4 also has a barrel threaded section 22 on its outside, which is screwed to a first adapter threaded section 16. Of course, in alternative exemplary embodiments, it is also conceivable that the mouth element 1 is screwed directly to the barrel thread section 22.

The silencer 3 mounted on the connecting element 2 in the present exemplary embodiment includes on the one hand the aforementioned housing 16, in which chambers (not shown) for soundproofing are arranged in a known manner, and a central support element 29. The housing 16 is on the housing section 28 of the connecting element 2 postponed and is due to its paragraph. The carrier element 29 is connected to the connecting section 23 of the connecting element 2, the connecting section 23 in the present exemplary embodiment being designed as a threaded section and the carrier element 29 being screwed to the connecting section 23. A sealing element in the form of a sealing ring is arranged between the carrier element 29 and the housing 16 resting on the outside of the carrier element 29.

Although exactly three fixing elements 9, 12 are provided in the present exemplary embodiment, it should not go unmentioned that only two fixing elements 9, 12 are necessary to ensure the function or four, six or more fixing elements 9, 12 can be provided.

It is also conceivable in alternative exemplary embodiments that the first fixing elements 9 are designed as guide lugs and the second fixing elements 12 as link-like recesses.

Alternative structural configurations are also conceivable instead of the screw surface, for example latching surfaces or surfaces that are ellipsoidal in relation to the first longitudinal axis 5 as locking surfaces 11, 14.

REFERENCE LIST

1

Mouth element

2

Connecting element

3

silencer

4th

Run

5

first longitudinal axis

6th

second longitudinal axis

7th

common longitudinal axis

8th

Connection section

9

first fixing element
9a radial link section
9b axial link section

10

first centering surface

11

first locking surface
11a locking bar

12th

second fixing element

13th

second centering surface

14th

second locking surface

15th

Thread adapter

16

first adapter thread section

17th

second adapter thread section

18th

first sealing section

19th

second sealing section

20th

Deflection hole

21

Hexagon element

22nd

Barrel thread section

23

Connection section

24

Sealing groove

25th

Muzzle brake section

26th

Intermediate bridge

27

Guide surface

28

Housing section

29

Support element
α swivel angle

Claims (15)

1. System for mounting a silencer (3) on a barrel (4) of a firearm, the system comprising:

   - a muzzle element (1) which has a first longitudinal axis (5) and which can be directly or indirectly fastened to the barrel (4) of the firearm by way of an attachment portion (8);

   - a connecting element (2) which has a second longitudinal axis (6) and which can be connected directly or indirectly to the silencer (3) and can be pushed at least partially over the muzzle element (1),

   wherein the connecting element (2) and the muzzle element (1) can be mechanically locked to one another in an assembled position, in which the first longitudinal axis (5) and the second longitudinal axis (6) coincide in a common longitudinal axis (7),
   wherein the muzzle element (1) has a first centring surface (10) and at least two first fixing elements (9),
   and the connecting element (2) has a second centring surface (13) and at least two second fixing elements (12) corresponding to the first fixing elements (9),
   wherein the at least two first fixing elements (9) and the at least two second fixing elements (12) are designed to be brought into engagement with one another in a first step by pushing the muzzle element (1) and the connecting element (2) one inside the other in the direction of the common longitudinal axis (7) into a pushed-in position and to be moved from the pushed-in position to the assembled position in a second step by pivoting the muzzle element (1) and the connecting element (2) relative to one another about the common longitudinal axis (7),
   wherein the at least two first fixing elements (9) and the at least two second fixing elements (12) are further designed in such a way that the centring surfaces (10, 13) are pressed against one another as a result of the interaction of the first fixing elements (9) and the second fixing elements (12) during the pivoting from the pushed-in position to the assembled position, so that the muzzle element (1) and the connecting element (2) are locked to one another in the assembled position.
2. System according to claim 1, characterized in that the first centring surface (10) and the second centring surface (13) are designed in such a way that a force-fitting connection is established between the centring surfaces (10, 13) in the assembled position, and in that the first fixing elements (9) and the second fixing elements (12) are designed in such a way that a form-fitting connection is established between the first fixing elements (9) and the second fixing elements (12) in the assembled position.
3. System according to any one of claims 1 to 2, characterized in that each first fixing element (9) has a first axial locking surface (11) and each second fixing element (12) has a second axial locking surface (14) for contacting the first axial locking surface (11) during the pivoting from the pushed-in position to the assembled position, wherein the first axial locking surfaces (11) or the second axial locking surfaces (14) are designed as a screw surface relative to the respective longitudinal axis (5, 6).
4. System according to claim 3, characterized in that the locking surfaces (11) designed as a screw surface are designed as a helical surface, and those locking surfaces (14) that are not designed as a helical surface are oriented normal to the respective longitudinal axis (5, 6).
5. System according to any one of claims 3 to 4, characterized in that the locking surface (11, 14) designed as a screw surface has a pitch of between 1 mm and 3 mm, in particular between 1.2 mm and 2 mm, preferably between 1.4 mm and 1.5 mm per 90° screw angle, wherein the screw angle is between 30° and 120°, preferably between 60° and 100°, in particular 80°+/-5°.
6. System according to any one of claims 1 to 5, characterized in that the at least two first fixing elements (9) in the muzzle element (1) are designed as guide-like recesses formed towards the first longitudinal axis (5) and each have a first axial locking surface (11), and in that the at least two second fixing elements (12) in the connecting element (2) are designed as guide lugs oriented towards the second longitudinal axis (6) and each have a second axial locking surface (14), wherein the first axial locking surfaces (11) are designed in the form of a screw surface, preferably in the form of a helical surface, relative to the first longitudinal axis (5).
7. System according to any one of claims 1 to 6, characterized in that the at least two first fixing elements (9) are arranged symmetrically in relation to the first longitudinal axis (5), and in that the at least two second fixing elements (12) are arranged symmetrically in relation to the second longitudinal axis (6).
8. System according to any one of claims 1 to 7, characterized in that the muzzle element (1) has three first fixing elements (9) and the connecting element (2) has three second fixing elements (12).
9. System according to claim 8, characterized in that the second fixing elements (12) are arranged in such a way that a hexagonal element (21) can be pushed into the connecting element (2), wherein each second fixing element (12) can be contacted by a different surface of the hexagonal element (21) .
10. System according to any one of claims 1 to 9, characterized in that the attachment portion (8) of the muzzle element (1) is designed as a threaded portion.
11. System according to claim 10, characterized in that the system further comprises a threaded adapter (15), which has a first adapter threaded portion (16) for screwing to a barrel threaded portion (22) formed on the barrel (4) and a second adapter threaded portion (17) for screwing to the attachment portion (8) of the muzzle element (1), which is designed as a threaded portion.
12. System according to any one of claims 1 to 11, characterized in that the connecting element (2) forms a bottom surface of the silencer (3), and a casing (16) of the silencer (3) can be connected to the connecting element (2) by way of a connecting portion (23), preferably by screwing.
13. System according to any one of claims 1 to 12, characterized in that the muzzle element (1) has a first sealing portion (18) and the connecting element (2) has a second sealing portion (19) corresponding to the first sealing portion (18), wherein the sealing portions (18, 19) preferably have sealing grooves (24) designed as a labyrinth seal.
14. System according to any one of claims 1 to 13, characterized in that the muzzle element (1) is designed as a muzzle brake and has a plurality of radial deflection bores (20) .
15. Firearm comprising a barrel (4) and a system according to any one of claims 1 to 14, which is in the assembled position, wherein the muzzle element (1) is directly or indirectly fastened to the barrel (4), preferably by way of the threaded adapter (15),

    wherein a silencer (3) is mounted on the connecting element (2), preferably by means of the connecting portion (23), wherein the connecting element (2) is pushed at least partially over the muzzle element (1) and is pivoted relative to the pushed-in position,

    wherein the at least two first fixing elements (9) of the muzzle element (1) and the at least two second fixing elements (12) of the connecting element (2) engage in one another and, as a result of the interaction of the fixing elements (9, 11) during the pivoting, the first centring surface (10) of the muzzle element (1) and the second centring surface (13) of the connecting element (2) are pressed against one another, so that the muzzle element (1) and the connecting element (2) are locked to one another.

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