DE8029844U1 - FIREARMS WITH ONE POCKET RIFLE - Google Patents

Description

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Hans Zimmermann, B789 bJildflecken 1i ».i1.8o

Firearm with a stick-in barrel

The innovation relates to an insert barrel for firing a small-caliber cartridge from a large-caliber one Run, for example from a shot barrel.

There is a plug-in barrel known (DE-GM 80 12 ί * 99.8), in which the axial position of the plug-in barrel is fixed by an extension of the plug-in barrel, which in the inserted state rests on the transition cone of the cartridge chamber, so that even with frequent use of the weapon the distance between the cartridge chamber of the insert barrel and the bottom cover is not increased. The disadvantage of this known insertion barrel is the comparatively difficult adjustment of the E ins ^; run-in when shooting in. There is namely an eccentric ring at the front end of the barrel, which is rotated for the purpose of adjustment and then, after reaching the optimal position of the insert barrel in the Eichrotlauf with the help of grub screws provided on the eccentric, is fixed there. However, it cannot be completely ruled out that the

2a eccentric when removing from the shot barrel opposite the plug-in barrel moves again so that the eccentric is fixed in an incorrect position on the plug-in barrel will.

The present innovation is therefore based on the task To create an insert barrel that is particularly easy to adjust, in which the once reached Adjustment remains reliable and that also with

Hans Zimmermann, S7B9 idildflecken 1it.11.8ο

frequent use does not change the accuracy of the shot. After all, the insert barrel should be particularly inexpensive to manufacture.

According to the innovation, this is done by using the insert barrel slidable and this in the large-caliber barrel holding socket achieved with at least two lying one behind the other arranged to each other ettua coaxial longitudinal bores different diameters, the outer diameter of the bushing approximately the diameter of the cartridge chamber or /

1a and corresponds to the barrel bore of the large-caliber barrel and ujobei the longitudinal bore of larger diameter idem Closure part of the LJaffe is provided chamfered and several radially extending distributed over the circumference has arranged threaded holes, are screwed into the set screws, the free ends of which on the Make contact with the outer surface of the insert barrel.

In order to achieve a The advantage of being able to make large adjustments is the mutually coaxially provided longitudinal bores of the bushing arranged eccentrically to the longitudinal axis of the bushing. One such a rough adjustment is for example in the case of insert barrels Necessary for triplets because the axes of the shot barrels cross after 6 m.

In order to allow the insertion barrel to be adjusted as finely as possible to create and also to ensure an extremely tight fit of the insert barrel in the socket, has in a preferred embodiment, the socket several

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Rows of distributed over the circumference of the socket, radial holes for adjusting screws.

A particular advantage of the firearm according to the innovation consists in the fact that the socket can also be used for comparatively long plug-ins, in particular since the length of the bushing is easily designed according to the existing caliber and length ratios the socket is relatively long, is the deformation of the insert barrel as a result of the The adjusting screws acting on the insertion barrel are negligible, i.e. the clamping forces have no effect on the Have shooting performance.

The socket is preferably arranged in the area of the mouth of the Einsteck1. In this way the plug-in barrel relatively thin-walled and therefore_light be designed without the insertion barrel tending to oscillate when fired.

The innovation allows the most diverse implementation options to, one of them is shown in the attached diagram schematis.ch. Show it

FIG. 1 shows the bushing, which can be pushed over the plug-in barrel, for holding and guiding the Insert barrel in the large-caliber barrel, in the side view,

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Hans ZimmErmann, Β7Θ9 liJildflEcken lit.11.8α

Figure 2 shows the socket according to Figure 1 in the front view and

FIG. 3 shows the section through a rifle barrel with an insertion barrel and socket, with the socket afterwards the lines A-A of Figure 1 in section

is shown.

The barrel 1 is pushed into the large-caliber rifle barrel, with the barrel 1 being separated from the socket 3 is held. The socket 3 mostly for this purpose two consecutive longitudinal bores ^ t, 5, whose Longitudinal axes coincide. The hole 5 has the diameter

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knife d, which is approximately the outer diameter of the

1 run corresponds to 1. The hole it -has the diameter d, which is slightly larger than the outer diameter of the insert barrel 1. The socket 3 has the outer diameter d, which corresponds to the inner diameter of the large-caliber LauTs 2. The two holes Ί and 5 are opposite the

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Soul axis S of the barrel 2 offset, ie eccentric

arranged so that the longitudinal axis S of the bores ^ t and 2 _D does not coincide with the axis of the soul. For the purpose of adjustment, the adjusting screws S, 7, 8, 9 are adjusted during the shooting process, so that the insert barrel 1 is braced against its rear part held in the bore 5 and locked there with the screws 1o to Ik , ie by a very small amount laterally Amount is bent (e.g. in the direction of arrow B by adjusting screw B). The arrow A indicates the direction of the shot while

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Hans Zimmermann, Β7Θ9 Liildflecken 1 * ». 11.8o | '

at the end P the cartridge chamber of the Einstecklaufε is located and possibly a device (not shown in detail) on the insert barrel 1, which locks the insert barrel 1 causes in the longitudinal direction.

In the embodiment shown in the drawing

of the insert barrel is the end P except for the diameter d reinforced so that this end uiie a cartridge base is firmly mounted in the chamber of the large-caliber barrel 2. It is clear that the insert barrel at this point P 1d can also be provided with a special device that enables the empty cartridge case to be ejected from the insertion barrel 1 causes when the breech of the weapon, not shown in detail, is opened.

Claims (3)

Ij ·· · ■ ··· »■, ι,. Udo Schlagwein \ .: ": '.: .. ;;, *: .. ·' - ,, 'Patcnlar.iwalt Lindenwog 7d - Tel .: (06032) 85065 + 84827 D-6350 Bad Nauheim (Steinfurth) Hans Zimmermann , 8789 üJildflecken 1 ^ t.11.Bo protection claims 1. Firearm with an insert barrel for firing a small-caliber cartridge from a large-caliber barrel, for example from a shotgun barrel, geke η η features a socket (3) with at least two that can be pushed over the insert barrel (1) and holding it in the large-caliber barrel (Z) one behind the other arranged approximately coaxial longitudinal bores (it, 5) of different diameters (d \ d ² ), üjo- 1q at the outer diameter (d) of the socket (3) corresponds approximately to the diameter (d) of the cartridge chamber and / or the barrel bore of the large-caliber barrel (2) and the longitudinal bore (i +) of larger diameter (d ¹ ) the breech part of the Weapon turned away is provided and 15. Several radially extending over the circumference of the socket has distributed cast holes which are screwed into the adjusting screws (6, 7, 8), the free ends of which bear against the outer surface (9) of the insert barrel (1). • · ■ t · ι · t · > b I IfIIII I I 1 * ■ ·· ·> 111 » | «I III IDI ti 11 Hans Zimmermann, 8769 LJildflecken 2. Firearm according to claim 1, characterized in that the mutually coaxially arranged longitudinal bores (k _f 5) are provided eccentrically to the longitudinal axis of the socket (3). 3. Firearm according to Claims 1 and 2, characterized in that the socket (3) has several rows of radial bores for adjusting screws (6, 7, 8 or 1o, 11 or 13, 14) which are distributed over the circumference of the socket. k. Firearm according to one or more of the preceding claims, characterized in that the sleeve (3) is arranged in the region of the mouth of the insertion barrel (1).