DE8232810U1 - CHANGE OF FIREARMS - Google Patents

Description

TER M £ ER «MÜLLER ', STEINMfelStER ί ί.' Peters

DESCRIPTION

The invention relates to an interchangeable barrel for handguns with ground lock, which has a housing with a guide surface sloping backwards for unlocking of the barrel during recoil.

In a number of handguns with a ground lock, the barrel and the breech block when a shot is fired first shifted backwards together, and then the run with respect to the further decreasing ver | finally unlocked and stops, so that the empty cartridge case is ejected with the help of a suitable mechanism and a new cartridge in the back of the

; 5 barrel can be inserted. The connection between run and breech is released in some types of weapons by lowering the rear end of the barrel. this happens with the help of a rearward sloping guide surface provided in the weapon housing, onto which the rear end of the barrel runs up with suitable guide links. The present refers to weapons of this type Invention.

The ammunition for large-caliber handguns is proportionate expensive. There are therefore exchange systems are known that allow a large caliber run through a barrel for Exchange small-caliber ammunition, for example caliber 22. The backlash-free attachment of the Alternating barrels usually have difficulties, since weapons of the type mentioned are usually not manufactured with close tolerances will. Rather, as a rule, the individual parts of each weapon are individually adapted to one another. It is therefore not easily possible to produce an interchangeable barrel that can be used on any weapon of the associated training

aisle type can be fastened without play. f

TER MEEF * .MÜLLEFi ". STEINM & STkft l'l . 'Peter's

The invention is therefore based on the object to provide a removable drive of the generic type, which can be mounted on any Ausgangöwaffe without play in a simple manner.
5

According to the invention, this object is achieved in that an adjustable spreader member is provided in the interchangeable barrel for support on the sloping guide surface of the housing.
10

With the help of the spreader member, the barrel between the inclined guide surface and one that fixes the barrel forward Catch lifting bolts are firmly wedged.

The spreader member can penetrate the barrel in the transverse direction with the help of adjusting screws in a long · " hole displaceable cross pin, an eccentric bolt or the like can be formed *

When using the small-caliber barrel, the barrel is firmly locked in relation to the housing and not with the Lock locked. This is not a problem because of the lower explosion pressures of small caliber ammunition, and it results at the same time the advantage that the fixed barrel leads to a higher accuracy of the shot, so that the weapon for can be used for sporting purposes or target practice and ensures a high level of accuracy.

A ramp extends from the rear end of the barrel, which is used to load cartridges into the barrel when reloading from a magazine to convict. The ramp has a convex shape, so that the cartridges on the one hand can be raised to a greater height due to the narrower barrel bore and In addition, positional inaccuracies in the longitudinal direction of the weapon lose weight.

Ί TER Meer .Müller '', STCElNrVtIS ^- KER Γ ': #' Peters

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Further details of the invention emerge from the subclaims *

In the following, preferred exemplary embodiments of the invention are explained in more detail with reference to the accompanying drawings.

Fig. 1 is a partially cutaway view

Partial side view of a weapon with-:! 10 according to the invention, changeover run;

Fig. 2 is a corresponding plan view;

Γι Fig. 3 shows a front view of the weapon according to

ξ 15 Figure 1;

\ Fig. 4 and 5 show in plan view and Seitenan-

^} \ sees a first embodiment

a Spreizvor-20 direction according to the invention;

FIGS. 6 and 6 show, in corresponding representations, a second embodiment of FIG Spre i ζ device; 25th

FIGS. 8 to 11 show two different embodiments a ramp at the rear of the barrel

30 In Fig. 1 are a running piece 10 of an interchangeable barrel, a lock 12 and a magazine 14 are shown. The is located within an unspecified bore in the running piece actual, sleeve-shaped barrel 16. On the front end of barrel piece 10 lying on the left in FIG. 1, there is grain 18

35 attached to the weapon. Below the front sight there is a downwardly projecting shoulder 20 on the running piece, in

Meer -MCU-LBft. «siSEiNMfeiSTteR Ϊ I. ' Peters ί

which a parallel to the barrel arranged bore 22 is provided.

The runner can be in a guide, not shown, for example a type of dovetail guide, from slide on the left in Figure 1 on the housing of the weapon, also not shown.

The shutter 12 is similar, also not shown Way longitudinally displaceable with respect to the housing. The shutter guide 24 extends along the bottom of the barrel piece 1.0 and has a downwardly protruding attachment at its front end located on the left in FIG. 1 26, the cross section of which corresponds essentially to that of the projection 20 of the running piece and the one the Has bore 22 extending bore 28. In the bore 28 there is a spring guide sleeve 30 projecting forwards which extends into the bore 22 of the boss 20 and is flush with the forward end of the barrel 10 ends. A spring guide rod 32 is located concentrically within the spring guide sleeve 30, which in its The rest position shown is also flush with the front end of the barrel 10. At the front end of the spring guide sleeve and of the spring guide rod, the spring guide sleeve has an inwardly projecting flange 34, as a spring plate for a spring guide rod 32 The closing spring in the form of a helical compression spring surrounding its entire length is used. The back end of the Spring guide rod 32 is on a downwardly projecting one Approach 38 of the running piece 10 attached.

When the shutter 12 together with the downwardly protruding Extension 26 and the spring guide sleeve 30 due to the exploding pressure of a cartridge to the right in FIG. 1 moves, the closing spring 36 is compressed, so

TER SEA · MGLLEPi VSTiEINMEISTER: I. Pefcprs

that the shutter 12 from the rear end position after the automatic cartridge change returns to the front end position shown in Figure 1.

A firing pin 40 is shown within the breech block 12, which when a shot is fired at the rear Edge area of a cartridge 42 strikes. The firing pin is biased backwards by a firing pin spring 44. A safety shaft 46, which can be rotated from the outside with the aid of a safety lever 48 (FIGS. 2 and 3), is used to lock the firing pin and thus to secure the weapon.

FIG. 2 also shows a pull-out claw 50 for ejecting empty cartridge cases, which with the aid of a fastening screw 52 is fixed in the lock. The pull-out claw grasps the rear, projecting edge of a Cartridge 42 and takes the cartridge case backwards after a shot has been fired, so that the case is ejected can be.

In Figure 1, a conventional visor 54 is shown on the rear end of the closure 12, which with the help a screw 56 is attached.

Finally, in FIG. 1, a mechanism, denoted overall by 58, can be seen which serves to move the running piece 10 into to set its leadership in the longitudinal direction of the weapon. This mechanism 58 should then be based on FIGS are explained in more detail.

FIGS. 4 and 5 show, in a schematic partial representation, the rear end region of the running piece 1O _4. In FIG. 5, in particular, the rear, lower extension of the running piece, which is designated in FIG. 1 for 38, is shown.

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TER MEER-MÜLLER '., ST ^ iNMElSTtR Γ *:. "' Peters

This approach 38 has a vertical, front end face ", which rests against a catch lever bolt 62 running in the transverse direction of the housing, not shown, which the front End position of the running piece determined. However, it is not possible as a rear stop for the running piece as well to provide a fixed stop on the housing, since in the manufacture of the housing and in particular the position of the Diameter of the catch lever bolt only relatively rough tolerances have been observed. A play-free attachment the exchange barrel would therefore not be possible with at least some of the underlying exit weapons. According to the invention a spreading mechanism is therefore provided which wedges the running piece against the catch lever bolt 62, as subsequently should be explained.

In the original weapon there is one at an angle backwards and lower guide surface 64, which is shown in phantom in the figure. As already mentioned, serves this guide surface 64 is used to keep the barrel in a certain position during the backward movement of the barrel and breech to unlock. Such an unlocking is for example in the handguns model M 39, M 59, M 52, M 539 and M 559 from Smith & Wesson provided.

According to FIGS. 4 and 5, in the lower extension 38 of the running piece 10 there is a penetration of the extension in the transverse direction and elongated hole 66 extending in the longitudinal direction of the weapon through which a transverse pin 68 (FIG. 4) extends, which emerges on both sides of the approach 38. The transverse pin 68 is in the elongated hole with the aid of two adjusting screws 70, 72 displaceable transversely to its longitudinal direction and with its ends emerging from the extension 38 against the guide surface 64 can be pressed, which consists, in a manner not shown, of two partial surfaces lying on both sides of the projection 38. This can the running piece IC between the color lever bolt 62 and the Guide surface 64 wedged and in the longitudinal direction of the weapon

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't is set free of play.

Figure 6 and 7 shows another embodiment of the spreading mechanism with an in one the approach 38 of the 5 running piece 10 in the transverse direction penetrating bore 74! rotatable eccentric bolt 76. Two eccentrics 78,80 step

from the shoulder 38 on both sides and by rotating the eccentric bolt against the inclined guide surface 64

'■ · be pressed. An adjusting screw 82, the axis of which

I 10 runs right to that of the eccentric bolt 76, , «Is used to fix the eccentric bolt in the direction of rotation.

\ Then with reference to Figures 1 and 8 from

I the transition area between the running piece and the lock as well

\ 15 a ramp f located at the rear end of the barrel piece can be entered, which al? Guide for the cartridges

I a magazine in the chamber in the rear end

λ of the running piece is used.

20 As can be seen from Figure 1, there is the parting plane! From the rear face of the running piece, the ramp extends obliquely downwards and backwards in the direction of the

Magazine 14. In the case of the starting weapon, for example a FN 25 high power or the like, the ramp extends diagonally upwards to the lower edge of the barrel bore. Because the bottom edge the barrel bore is higher in the case of a smaller barrel bore, it is necessary for an exchangeable barrel to replace the cartridges * move further up the ramp. With - 30 some weapons, however, it is not easily possible a higher inclined ramp to be provided, since the structure of the not replaced locking piece of the original weapon this often does not allow, because, for example, switching

if levers run in the front area of the locking piece, 35

For this reason, the inventive shown in Figure 8

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according to ramp a geometric shape that a higher ||

The cartridges can be raised without the ramp i

extend to the lower edge of the bore of the interchangeable barrel f

got to. I.

1 Such a ramp is designated by 84 in FIGS. 8 and 9. M.

Fig. 8 shows the rear end of the barrel in a |

View from the rear, while FIG. 9 is a partial side view

represents this area. The ramp 84 is channel-shaped |

formed and by two lateral guide cheeks 86 j

limited. In particular from Fig. 8 it can be seen that the j

Ramp 84 ends at a distance below the bottom line of the running \ bore 88. The ramp 84 is shaped so that

as a guide for the magazine, not shown here,

zin coming cartridges sufficient as it enters the rearward \ end of the bore 88th ^:

Another embodiment of the ramp that too Can be used if a ramp leading to the bottom line of the barrel bore cannot be accommodated for reasons of space,;

is shown in Figs. These figures correspond to:

Figs. 8 and 9, however, have a ramp 90 in the form of a.

swiveling plate, which is not \

I and thus when changing the cartridge under | Action of a spring, not shown, in the through ' position shown in solid lines. In this position the ramp goes in the usual way Move smoothly into the bottom line of barrel bore 88. After the cartridge change, the ramp 90 is through the returning Shutter depressed around an axle pin 92 in the position shown in phantom, in which it partially releases the space initially occupied. At the bottom of the ramp 90 is a guide pin 94, which is shown in a corresponding guide hole 96 on the rear;

TER MEER-MÖLLER · ST £ I * NM £ ISTEr 'Γ * ί. ** Peters

The end of the running piece can be displaced below the barrel bore 88 is.

Instead of; the rocker construction illustrated in FIGS. 10 and 11 a ramp can also be used, which evades in a different way when the breechblock is returned.

Claims (6)

TER MEER-MÜLLER-STEINMEISTER PATENTANWÄLTE - EUROPEAN PATENT ATTORNEYS Dipl.-Chem. Dr. N. ter Meer Dipl.-lng- H. Steinmeister SsSsse ί MÜ! Ler Artur-Ladebeck-Strasse α D-aOOO MÖNCHEN 22 D-48OO BIE = LEFELD 1 St / la FRANZ-JOSEF PET2RS Senefelderstrasse 19, 4790 Paderborn 1 SWITCH FOR HANDGUNS 1. Interchangeable barrel for handguns with ground lock, a housing with a sloping rear guide surface for unlocking the barrel exhibit during recoil, characterized * that in the interchangeable barrel (10 "16) an adjustable spreader member (68,78) for support on the sloping Guide surface (64) of the housing is provided. 10 2. Exchange barrel according to claim 1, characterized in that that the spreader member has a longitudinal direction of the interchangeable barrel transversely to its longitudinal direction , ι · r- « TER Meer · Müller.,. STJEINMEIS ^- GEr ',: . * Peters iü IAi ti I «" with the help of steep screws (70,72) displaceable transverse pin (68), the free ends of which emerge from the interchangeable barrel when the transverse pin is displaced, two on both sides Detect partial surfaces of the sloping guide surface (64) lying on the alternate barrel. 3. Exchange barrel according to claim 1, characterized by an eccentric bolt (76) which can be rotated in the interchangeable barrel and is arranged transversely to its longitudinal direction, which has two eccentrics emerging on both sides of the interchangeable barrel, which counteract when the eccentric bolt is turned two partial surfaces of the sloping guide surface (64) lying on both sides of the interchangeable barrel can be adjusted. 4. interchangeable barrel according to one of claims 1 to 3, characterized in that the expansion member (68,78) is arranged in a downwardly projecting extension (38) of the interchangeable barrel, which extension (38) with a front End face (60) against a transverse to the interchangeable barrel, catch lever bolt fixed to the housing. 5. removable drive according to one of claims 1 to 4, with a ramp below the rear end of the barrel bore for the transfer of cartridges from a magazine into the barrel bore in cartridge replacement, characterized gekennzeichne t _T that the ramp (84) at a distance below the bottom line of the barrel bore (88) ends and its contour is adapted to the path of movement of the cartridges from the magazine into the barrel bore. 6. Exchange barrel according to one of claims 1 to 4, with a Ramp below the rear end <? 2r barrel bore for transferring cartridges from a magazine into the barrel bore when changing cartridges, thereby g e k e η η ζ e i, ö hnet, that the ramp is movably suspended and that the cartridge TER MEER · möller '·, st £? Nm £ istJ = r: j, ·' Peters ill t < change is raised by spring force into a position merging into the bottom line of the barrel bore (88) however, the lock can be pressed down to a lower position * * t t Cl «»