DE102005026975B4 - Gun barrel with a pipe extension - Google Patents

Abstract

barrel with a pipe extension, characterized in that the weapon barrel (10) at its front end (16) a slip-on section (18) and the tube extension (12) at its rear end (20) has a sleeve portion (22) with a Blind hole (24), wherein the Aufsteckabschnitt (18) and the Blind hole (24) of the sleeve section (22) adapted to each other with a defined dimensional tolerance are that the gun barrel (10) on the Aufsteckabschnitt (18) back subsequently with an external thread section (26) and a Anlagingschulter (28) between the outer diameter the pipe extension (12) and the outside diameter of the sleeve section (22) is formed, and that a union nut (14) with a the external thread section (26) screw threaded internal threaded portion (30) and a counter the Anlagingschulschulter (28) zwängbaren Clamping collar (32).

Description

The The invention relates to a weapon barrel with a pipe extension.

Out establish the ease of handling a weapon or lack of space or to save weight, the weapon tubes are getting shorter. from that However, the shortcoming is that in particular the projectile energy of the projectile fired from the weapon barrel becomes smaller. These Lower projectile energy is achieved with a smaller targeted firing distance associated. To compensate for such a lower projectile energy and the resulting lower targeted firing distance is it is possible to increase the gas pressure, to come back to a corresponding bullet performance.

A gun barrel with a pipe extension is for example from the EP 0 218 297 B1 known. There, the gun barrel is directly bolted to the pipe extension. The gun barrel is trained with trains. However, the pipe extension has a smooth bore.

A pipe extension for firearms and cannons of all kinds is from the DE 43 10 219 A1 known. There are two gun barrels provided, which - similar to the proposal according to the EP 02 18 297 B1 - Can be screwed directly to each other.

Of the Invention is based on the object, a weapon barrel with a pipe extension to provide, with the above-described defects are eliminated.

These The object is achieved by the Characteristics of claim 1 solved. Preferred embodiments or further developments of the weapon barrel according to the invention with pipe extension are in the subclaims characterized.

The Invention is for Weapons are provided, which are used especially for shots at long distances should. Such weapons come, for example, mountain rangers, mountain hunters, in the Navy or the Air Force for use or if an increased penetration power should be achieved.

By the pipe extension according to the invention will be without additional Propellant powder the muzzle gases better utilized and a significant increase in projectile energy achieved. This projectile energy increase can be on the order of 20% and more. Another advantage is that too new types of propellant charge, for example, having a greater weaving strength, i. Geometry, can be used, as with a gun barrel invention Tube extension, i.e. in the extended one Gun barrel, the propellant powder burnout at a later date may take place. This allows higher Charge weights are used, which in turn leads to an increase in performance leads. As a result, a corresponding weapon is used more flexibly can be.

Further Details, features and advantages will be apparent from the following Description of a sectionally longitudinal section in the drawing illustrated embodiment the weapon barrel invention with a pipe extension.

The figure shows a barrel 10 , a pipe extension 12 and a union nut 14 for firm and precise connection of the pipe extension 12 with the gun barrel 10 ,

The gun barrel 10 indicates at its front end 16 a slip-on section 18 with a certain outer diameter D ₁ and with an axial length dimension L ₁ . At the slip-on section 18 L1 is at least 2 × D1.

The pipe extension 12 indicates at the rear end 20 a sleeve section 22 with a blind hole 24 on. The blind hole 24 has an inner diameter D ₂ and an axial depth dimension L ₂ . The axial depth dimension L ₂ is smaller by a certain amount than the axial length dimension L _{1 of} the Aufsteckabschnittes 18 of the barrel 10 ,

The gun barrel 10 is at the slip-on section 18 then back with an external thread section 26 educated. The sleeve section 22 the pipe extension 12 is with an investment ring 28 educated.

The union nut 14 is at one end with a female thread section 30 and at its other end facing away from it with a tension collar 32 educated.

The slip-on section 18 of the barrel 10 has an annular end face 34 and the blind hole 24 in the sleeve section 22 has a ring bottom surface 36 on. The ring bottom surface 36 the blind hole 24 is with a ring-shaped circumferential groove 38 and the ring end face 34 of the slip-on section 18 of the barrel 10 is with a ring-shaped circumferential groove 40 educated. The annular circumferential grooves 38 and 40 are provided congruently, they serve to receive a sealing ring 42 ,

The gun barrel 10 and the pipe extension 12 are with trains 44 and 46 educated. Around trains 44 and 46 align with each other, is on Aufsteckabschnitt 18 a feather key 48 provided and the sleeve section 22 with a groove 50 for the feather key 48 educated.

The union nut 14 can on its outer surface 52 with a screw device 54 be educated. This screwing device 54 is formed for example by an external hexagon, a knurling, a corrugation or a longitudinal ribbing.

When extending the gun barrel 10 with the pipe extension 12 the procedure is as follows:
First, the pipe extension 12 through the tension collar 32 the union nut 14 pushed through or the union nut 14 on the pipe extension 12 postponed. Subsequently or before or after, the sealing ring 42 in the annular circumferential groove 38 inserted. After that, the barrel becomes 10 in the sleeve section 22 inserted accurately and then the union nut 14 with the male threaded portion 26 of the barrel 10 screwed, with the clamping collar 32 against the investment ring 28 wedged and the sealing ring 42 between the ring bottom surface 36 and the ring end face 34 is clamped sealingly.

By a very close sliding fit tolerance between the outer diameter D1 of the Aufsteckabschnittes 18 and the inner diameter D2 of the blind hole 24 of the sleeve section 22 the pipe extension 12 results in a precisely aligned alignment of the pipe extension 12 with the gun barrel 10 ,

Should the pipe extension 12 from the barrel 10 be separated, so only needs the union nut 14 Ios to be screwed. After that, then on the gun barrel 10 a so-called mouth saver be screwed. This muzzle protector can be similar to the union nut 14 - But without through hole for the pipe extension 12 but with a one-piece bottom instead of the Spannbundes 32 - be trained.

10

barrel

12

Pipe extension (for 10 )

14

Union nut (between 10 and 12 )

16

Front end (from 10 )

18

Slip-on section (on 16 )

20

Rear end (from 12 )

22

Sleeve section (on 20 )

24

Blind hole (in 22 )

26

Male thread section (from 10 For 14 )

28

Anlagingschulschulter (from 22 )

30

Female thread section (from 14 )

32

Tension collar (from 14 )

34

Ring end face (from 18 )

36

Ring bottom surface (from 24 )

38

annular circumferential groove (in 36 )

40

annular circumferential groove (in 34 )

42

Sealing ring (between 34 and 36 in 38 and 40 )

44

Trains (in 10 )

46

Trains (in 12 )

48

Feather key (on 18 )

50

Groove (for 48 in 22 )

52

Outer surface (from 14 )

54

Screwing device (on 52 )

Claims (10)

Gun barrel with a tube extension, characterized in that the weapon barrel ( 10 ) at its front end ( 16 ) a slip-on section ( 18 ) and the pipe extension ( 12 ) at the rear end ( 20 ) a sleeve section ( 22 ) with a blind hole ( 24 ), wherein the Aufsteckabschnitt ( 18 ) and the blind hole ( 24 ) of the sleeve section ( 22 ) are adapted to each other with a defined dimensional tolerance that the gun barrel ( 10 ) to the slip-on section ( 18 ) subsequently with an externally threaded portion ( 26 ) and an investment ring ( 28 ) between the outer diameter of the pipe extension ( 12 ) and the outer diameter of the sleeve portion ( 22 ) is formed, and that a union nut ( 14 ) one with the male threaded portion ( 26 ) screw-threaded female section ( 30 ) and one against the Anlagingschulter ( 28 ) Elastic tension collar ( 32 ) having. Weapon tube with a tube extension according to claim 1, characterized in that the Aufsteckabschnitt ( 18 ) of the weapon barrel ( 10 ) and the blind hole ( 24 ) in the sleeve section ( 22 ) of the pipe extension ( 12 ) are cylindrical. Weapon pipe with a pipe extension according to claim 1 or 2, characterized in that the outer diameter D _{1 of} the Aufsteckabschnittes ( 18 ) and the inner diameter D _{2 of} the blind hole ( 24 ) are matched to each other with a sliding fit tolerance. Weapon tube with a tube extension according to one of claims 1 to 3, characterized in that the Aufsteckabschnitt ( 18 ) of the weapon barrel ( 10 ) has an axial length dimension (L ₁ ), which is greater by a certain amount than the axial depth dimension (L ₂ ) of the blind hole ( 24 ) of the sleeve section ( 22 ) of the pipe extension ( 12 ). Gun barrel with a pipe extension according to one of claims 1 to 4, characterized gekennzeich net, that between the annular end face ( 34 ) of the slip-on section ( 18 ) of the weapon barrel ( 10 ) and the ring bottom surface ( 36 ) in the sleeve section ( 22 ) of the pipe extension ( 12 ) formed blind hole ( 24 ) a sealing ring ( 42 ) is provided. Gun barrel with a tube extension according to claim 5, characterized in that the ring bottom surface ( 36 ) of the blind hole ( 24 ) in the sleeve section ( 22 ) of the pipe extension ( 12 ) and / or the annular end face ( 34 ) of the slip-on section ( 18 ) of the weapon barrel ( 10 ) with an annular circumferential groove ( 38 . 40 ) for receiving the sealing ring ( 42 ) are / is formed. Gun barrel with a tube extension according to one of claims 1 to 6, characterized in that the weapon barrel ( 10 ) and the pipe extension ( 12 ) corresponding trains ( 44 . 46 ) are formed, which by means of a feather key ( 48 ) and a groove ( 50 ) are aligned with each other. Gun barrel with a pipe extension according to claim 7, characterized in that the feather key ( 48 ) on the slip-on section ( 18 ) of the weapon barrel ( 10 ) and the groove ( 50 ) in the blind hole ( 24 ) of the sleeve section ( 22 ) of the pipe extension ( 12 ) is provided. Gun barrel with a pipe extension according to one of claims 1 to 8, characterized in that the union nut ( 14 ) on its outer surface ( 52 ) with a screw device ( 54 ) is trained. Gun barrel with a tube extension according to claim 9, characterized in that the screw device ( 54 ) is formed by an external hexagon, a knurling, a corrugation or a longitudinal ribbing.