EP3367042B1 - Integral sound damper for rifle barrel - Google Patents

Description

The invention relates to an integral muffler for a gun barrel according to the preamble of claim 1. Such integral muffler is known from EP 3 023 729 A1 known.

Integral mufflers for rifles are characterized by the fact that they are not only placed on the muzzle, but extend almost completely or possibly completely over the gun barrel in the longitudinal direction and enclose this like a coat. Such a design not only optimizes damper performance, but also improves the balance of the rifle and visual appearance.

One from the EP 3 023 729 A1 known integral muffler includes a trained for enclosing the gun barrel in the longitudinal direction tubular housing which is mounted on a gun barrel and secured by an internal thread on a provided in the mouth of the gun barrel external thread. The tubular housing consists of a hollow cylindrical body made of metal, which is surrounded by an integrally formed on this envelope element of an injection molding material. Within the housing, a deflection device for deflecting the resulting gas during firing is arranged.

The object of the invention is to provide an integral muffler of the type mentioned, which has an optimal guidance and arrangement on the gun barrel and allows the most effective and easy reduction of unwanted side effects of firing with little effort.

This object is achieved by a Intergralschalldämpfer with the features of claim 1. Advantageous embodiments and advantageous developments of the invention are specified in the dependent claims.

In the integral muffler according to the invention, a deflection device for deflecting the gas produced during the firing is arranged within the gun barrel in its longitudinal direction almost completely or completely enclosing housing. On the housing further from the internal thread in the longitudinal direction of the housing spaced guide surface for guiding the integral muffler is provided in the region of a running start of the gun barrel. As a result, the integral muffler can simply be slid over the barrel and mounted stress-free on the barrel without any noticeable transitions. Even without affecting the aesthetic overall impression of the rifle, the integral damper can thus be adapted particularly well to the design of the rifle. The integral muffler can not be recognized as an attachment, but rather gives the appearance of a thicker barrel. As a result, the properties of the rifle, e.g. Handling, focus, Mitschwingverhalten and leadership, to be maintained. The integral muffler is guided axially over the guide surface in the area of the barrel root and is fixed by the internal thread which fits to a standard thread at the muzzle. Within the housing, a trained for receiving the gun barrel inner tube is arranged, which limits the expansion space with an expansion chamber for receiving the resulting gas during firing. The inner tube shields the rifle barrel so that it is protected from the gas that is directed into the expansion chamber. For maintenance or cleaning, the integral muffler can be easily disassembled and easily re-attached to the gun barrel. Also a use of the rifle as a normal hunting weapon without silencer is possible. Then on the standard thread at the muzzle other Laufaufsätze, muzzle fire damper, muzzle caps or the like. Can be screwed.

In a preferred embodiment, the deflection device is formed by a diaphragm arrangement arranged in the housing and / or by a muzzle brake arranged in the housing. Due to the diaphragm arrangement, the flow of gas emerging from the muzzle during firing can be inhibited and a sudden escape of the gas into the air can be prevented. The expanding after a shot gas can relax so within the integral muffler, so that the sound energy emitted to the environment can be reduced. By means of a muzzle brake which is arranged within the housing in addition to the diaphragm arrangement or instead of the diaphragm arrangement, the combustion gas which emerges from the outlet opening during firing can likewise be deflected and directed back into an expansion space become. As a result, the energy of the combustion gas can also be reduced. In addition, the recoil can be reduced by the gas directed backwards and the resulting counter forces.

The inner tube can be held in a structurally advantageous embodiment at one end by the muzzle brake and at the other end by a guide bushing within the tubular housing. The guide bush is expediently inserted into the rear end of the housing facing the running start and preferably has the guide surface designed for the axial guidance of the integral muffler in the region of a running start.

The internal thread for mounting the integral muffler on a provided at the mouth of the gun barrel external thread may be provided in an expedient embodiment of the muzzle brake. Between the diaphragm assembly and the muzzle brake, a distance is preferably provided within the housing. As a result, voltages can be avoided.

In a further advantageous embodiment, the tubular housing is designed such that it has the same outer diameter as the extended diameter run-start. As a result, the barrel with the integral muffler mounted thereon has a uniform course.

The diaphragm assembly may consist of a body having a plurality of longitudinally spaced apart and separated by partitions chambers which are provided on two opposite sides with openings. The muzzle brake expediently contains radial through openings for deflecting the gas produced during the firing in the expansion space formed between the housing and the inner tube.

Figur 1

einen Gewehrlauf mit einem Integralschalldämpfer in einem Längsschnitt;

Figur 2

einen Gewehrlauf in einer Perspektive;

Figur 3

eine Führungsbuchse des in Figur 1 gezeigten Integralschalldämpfers in einem Längsschnitt;

Figur 4

eine Blendenanordnung des in Figur 1 gezeigten Integralschalldämpfers in einem Längsschnitt;

Figur 5

die Blendenanordnung von Figur 4 in einer Perspektive;

Figur 6

einen Mündungsdämpfer des in Figur 1 gezeigten Integralschalldämpfers in einem Längsschnitt und

Figur 7

den Mündungsdämpfer von Figur 6 in einer Perspektive.

Other features and advantages of the invention will become apparent from the following description of a preferred embodiment with reference to the drawings. Show it:

FIG. 1

a rifle barrel with an integral muffler in a longitudinal section;

FIG. 2

a rifle barrel in a perspective;

FIG. 3

a guide bush of the in FIG. 1 shown integral silencer in a longitudinal section;

FIG. 4

a diaphragm arrangement of the in FIG. 1 shown integral silencer in a longitudinal section;

FIG. 5

the aperture arrangement of FIG. 4 in a perspective;

FIG. 6

a muzzle damper of in FIG. 1 shown integral muffler in a longitudinal section and

FIG. 7

the muzzle damper of FIG. 6 in a perspective.

In FIG. 1 is a gun barrel 1 with a gun barrel 1 on almost the entire length enveloping integral muffler 2 shown. The also in FIG. 2 Rifle barrel 1 shown separately contains a diameter-extended barrel start 3 with a cartridge chamber 4 and a diameter-slimmer running part 5, which is passed through in the delivery of a shot of the projectile. The gun barrel 1 has a muzzle 6 at a running end 7. At the running end 7 of the gun barrel 1, an external thread 8 is provided for attachment of the integral muffler 2. At the transition of the diameter-extended running start 3 to the slimmer running part 5 is an outer cylindrical guide surface 9 for guiding the integral muffler 2 in the region of the running start third

The in FIG. 1 Integral silencer 2 shown includes a tubular housing 10, which is designed to almost completely enclose the gun barrel 1 in its longitudinal direction, whose outer diameter corresponds to the outer diameter of the barrel beginning 3. The tubular housing 10 has a greater length than the entire gun barrel 1 and is designed such that it encloses the running during the delivery of a shot from the projectile run part 5 of the gun barrel 1 over the entire length. The tubular housing 10 of the integral muffler 2 includes at its the beginning of run 3 facing the rear end in FIG. 3 In the shown in the weft direction front end of the tubular housing 10 is a in the FIGS. 4 and 5 shown aperture assembly 12 used. Between the guide bush 11 and the diaphragm assembly 12 is within the housing 10 also has a in the FIGS. 6 and 7 illustrated muzzle brake 13 is arranged. To avoid tension between the diaphragm assembly 12 and the muzzle brake 13 within the housing 10, a distance is provided. In the tubular housing 10 is further arranged between the guide bush 11 and the muzzle brake 13 for receiving the gun barrel 1 and the housing 10 concentric inner tube 14. Between the tubular housing 10 and the inner tube 14 an annular expansion space 15 is limited.

The inner tube 14 is held within the housing 10 on one side by the guide bushing 11 and on the other side by the muzzle brake 13. For this purpose, both the guide bush 11 and the muzzle brake 13 each have a thread for engagement with a corresponding mating thread at the two ends of the inner tube 14. By the guide bush 11 and the muzzle brake 13, the expansion space 15 formed between the housing 10 and the inner tube 14 is bounded on both sides. About a seal 16, the guide bushing 11 is sealed against the gun barrel 1. The muzzle brake 13 is sealed by a seal 17 relative to the housing 1. Also on the diaphragm assembly 12, a seal 18 is provided to seal against the housing 1.

How out FIG. 3 shows, the guide bush 11 has a collar 19 with an inner cylindrical guide surface 20 for engagement with the in FIG. 2 shown outer cylindrical guide surface 9 of the gun barrel 1. On the inside of the guide bush 11, an internal thread 21 is provided for connection to the inner tube 14. The guide bushing 11 also includes an external thread 22, via which the guide bush 11 is screwed into a corresponding internal thread on the end of the tubular housing 10 facing the running start 3. In the running start 3 facing end face of the guide bush 11 is a circumferential annular groove 23 for receiving the in FIG. 1 shown seal 16 is provided.

The in the FIGS. 4 and 5 shown aperture assembly 12 consists of a base body 24 having a plurality of longitudinally spaced apart and separated by partitions 25 chambers 26, which on two opposite sides with openings 27 are provided. The between a rear end wall 28 and a front end wall 29 of the base body 24 in the longitudinal direction of the diaphragm assembly 12 successive partitions 25 each have an opposite inclination, so that the chambers 26 have a triangular shape. In the rear end wall 28, the front end wall 29 and the partitions 25 central through holes 30 are provided for the formation of a caliber adapted through-passage for the passage of a projectile. In the region of the front end wall 28, a shoulder 31 and an external thread 32 are arranged on the outer side of the base body 24, through which the base body 24 can be screwed into the tubular housing 10. In the front end face of the end wall 28, a countersink 33 is introduced to guide away the pressure wave from the shooter. By the diaphragm assembly 12, the flow of the emerging from the muzzle 6 during the firing discharge gas can be inhibited and a sudden escape of the amount of gas into the air can be prevented. The expanding after a shot gas can relax so within the integral muffler 2, so that the sound energy released to the environment can be reduced.

In the embodiment shown, the shutter assembly 12 is formed in one part, e.g. made by machining or abrasive machining of a cylindrical body made of a high-strength and temperature-resistant light metal. The diaphragm assembly 12 may also have a different structure and be made in other ways.

The in the FIGS. 6 and 7 Muzzle brake 13 shown consists of a hollow cylindrical base portion, which includes a diameter-enlarged guide portion 34 for guiding within the tubular housing 10, a slimmer intermediate portion 35 with radial passage openings 36 and a holding portion 37 with an external thread 38 for connection to the inner tube 14. The passage openings 36 are arranged such that they lead from a central passage opening 39 to the outside of the slimmer intermediate area 35. As a result, the combustion gases produced during the firing can be guided into the expansion space 15 formed between the tubular housing 10 and the inner tube 14 and guided backwards. By the resulting counter-forces, the recoil can be reduced. In the embodiment shown, the radial passage openings 36 are aligned obliquely backwards. As a result, a particularly effective deflection can be achieved.

How out FIG. 6 it can be seen, on the inside of the holding portion 38 of the muzzle brake 13, an internal thread 40 is provided for mounting the integral muffler 2 on the gun barrel 1. By means of this internal thread 40, the integral muffler 2 can be screwed onto the external thread 8 which can also be used for fastening further muzzle attachments in the region of the running end 7. Through the guide bush 11 of the integral muffler 2 is guided axially on the gun barrel 1. On the outside of the guide portion 34, a groove 41 for the seal 17 for radially sealing the muzzle brake 13 relative to the housing 10 is provided.

LIST OF REFERENCE NUMBERS

1

gun barrel

2

Intergralschalldämpfer

3

running start

4

Chamber

5

running part

6

muzzle

7

Ongoing

8th

external thread

9

Outer cylindrical guide surface

10

Tubular housing

11

guide bush

12

diaphragm arrangement

13

muzzle brake

14

inner tube

15

expansion space

16

poetry

17

poetry

18

poetry

19

collar

20

Inner cylindrical guide surface

21

inner thread

22

external thread

23

ring groove

24

body

25

partition wall

26

chamber

27

opening

28

Rear end wall

29

Front end wall

30

Through opening

31

paragraph

32

external thread

33

reduction

34

guide region

35

intermediate area

36

through-openings

37

holding area

38

external thread

39

Through opening

40

inner thread

41

groove

Claims (11)

1. Integral sound suppressor (2) for a gun barrel (1), wherein the integral sound suppressor (1) comprises a tubular housing (10) designed for almost complete or complete encasing of the gun barrel (1) in its longitudinal direction, having an internal thread (40) arranged within the housing (10) for mounting the integral sound suppressor (2) on an external thread (8) provided at the muzzle of the gun barrel (1), wherein a deflector device (12, 13) for deflecting the gas being produced when firing a shot and an inner tube (14) designed to receive the gun barrel (1) are arranged within the housing (10) and wherein a guide surface (20) spaced from the internal thread (40) in the longitudinal direction of the housing (10) for guiding the integral sound suppressor (2) in a region of a barrel front end (3) of the gun barrel (1) is arranged on the housing (10), characterised in that the inner tube (14) with the housing (10) defines an expansion chamber (15) for receiving the gas being produced when firing a shot.
2. Integral sound suppressor (2) according to claim 1, characterised in that the deflector device (12, 13) comprises a baffle arrangement (12) arranged in the housing (10) and/or a muzzle brake (13) arranged in the housing (10).
3. Integral sound suppressor (2) according to claim 2, characterised in that the inner tube (14) is held within the tubular housing (10) at the one end by the muzzle brake (13) and at the other end by a guide bushing (11).
4. Integral sound suppressor (2) according to claim 3, characterised in that the guide bushing (11) is inserted into the rear end of the housing (10) facing the barrel front end (3).
5. Integral sound suppressor (2) according to claim 3 or 4, characterised in that the guide surface (20) designed for axial guiding of the integral sound suppressor (2) in the region of a barrel front end (3) is arranged on the guide bushing (11).
6. Integral sound suppressor (2) according to one of claims 2 to 5, characterised in that the internal thread (40) for mounting the integral sound suppressor (2) on an external thread (8) provided on the muzzle of the gun barrel (1) is provided on the muzzle brake (13).
7. Integral sound suppressor (2) according to one of claims 2 to 6, characterised in that a gap is provided within the housing (10) between the baffle arrangement (12) and the muzzle brake (13).
8. Integral sound suppressor (2) according to one of claims 2 to 7, characterised in that the baffle arrangement (12) consists of a main body (24) having several chambers (26) spaced from one another in the longitudinal direction and separated from one another by dividers (25), which chambers (26) are provided with openings (27) on two opposite sides.
9. Integral sound suppressor (2) according to claim 8, characterised in that the dividers (25) following one another in longitudinal direction have respectively an opposite inclination and contain central through-openings (30).
10. Integral sound suppressor (2) according to one of claims 2 to 9, characterised in that the muzzle brake (13) comprises radial through-openings (36) to deflect the gas being produced when firing a shot into the expansion chamber (15) formed between the housing (10) and the inner tube (14).
11. Integral sound suppressor (2) according to claim 10, characterised in that the through-openings (36) are aligned obliquely towards the rear, seen in shot direction.

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