DE1283707B - Automatic firearm - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

F41d

German class: 72h-9

Number: 1283 707

File number: P 12 83 707.9-15 (R 39504)

Filing date: December 19, 1964

Opening day: November 21, 1968

CO
CO
(N

The invention relates to an automatic weapon, in particular a machine gun, which can be replaced The barrel mounted in the breech block, the front cylindrical end of the breech block is held in an outer, socket-like housing.

Such weapons, which are often installed in vehicles, armored domes and aircraft, are Dimensions and weight are mostly of great, often even crucial, importance as of the available standing installation space is often limited. In particular, the production of the lock housing requires machine guns mostly very complicated and extensive machining work, which results in comparatively large operating weights and high manufacturing costs.

The object of the present invention is to provide an automatic weapon of the type mentioned at the beginning, in particular a machine gun, which once requires a comparatively small installation space and also a quick and easy one Means to be carried out installation and, above all, an economical production allowed.

This object is achieved according to the invention in that the lock housing consists of two in the vertical The housing halves are divided in the longitudinal center plane, the halves of which are adjacent to the outer housing Parts are held together by clamping devices. The comparatively small dimensions achieved in this way enable a compact design of the weapon housing, its pre-workpieces for the housing halves are advantageously made by forging in a die. In this way it is omitted the extensive and expensive milling work that is always required in conventional production methods, there the drop-forged housing halves only have a simple and comparatively low cutting process Require machining, since only the mating and guide surfaces require machining. In Advantageously, the tensioning means for absorbing the side forces consist of tension rods that pass through Shrink connected to the housing halves.

In a further advantageous embodiment of the invention, the surrounding is designed as a socket outer housing applied by shrinking onto the two semi-cylindrical shell halves of the housing halves. This makes one extraordinary stiff and compact design with a comparatively small weapon case width in the area the breech lock achieved.

In a further advantageous development of the invention, the rear ends of the housing half are automatic Firearm

Applicant:

Rheinmetall GmbH, 4000 Düsseldorf

Named as inventor:

Hartmut Menneking,

4000 Düsseldorf-Oberkassel;

Hermann Henning, 4000 Düsseldorf

th by one to accommodate longitudinal and

Transverse forces suitable locking block connected, which is advantageous as a hollow body for receiving a buffer device is trained.

An exemplary embodiment of the invention is shown in the drawing. It shows

^ao F i g. 1 shows a partial longitudinal section of a machine gun designed as a gas pressure loader with a split weapon or breech block housing,
F i g. 2 the top view,
F i g. 3 and 4 cross-sections according to III and IV of the

^a5 Fig. 1,

F i g. 5 shows a partial longitudinal section through a housing half according to V in FIG. 1,

F i g. 6 shows a cross section.

The breech block housing is divided in the vertical longitudinal center plane of the weapon and consists of two mirror-like housing halves 1 and 1 ', each with a semi-cylindrical at its front end Have shell half 2 or 2 '. The shell halves 2 and 2 ', for the detachable reception of the gun barrel serve, are firmly clamped in the outer housing designed as a socket 4 by the socket is shrunk onto the shell halves by prior heating. For exchangeable mounting of the gun barrel 3, the shell halves 2, 2 'are in a known manner on part of their inner wall equipped with comb teeth 5. In the wall of the socket 4 are channels 6 and holes at the same time? for the shutter operated by the gas pressure as well as for one also driven by the gas pressure Ammunition feed (not shown) provided. The socket also serves to hold the recoil spring housing 8, which is attached to the socket by means of screws. Furthermore, additional Construction elements may be provided, for example for holding an ammunition feeder, what however, for the sake of clarity, it is not shown in detail in the drawing.

809 638/1455

When automatic cannons are fired, considerable forces, directed transversely to the axis of the soul, often occur in the area of the breech lock. To absorb these side forces, the housing halves are formed as tension rods or anchors tensioning means 9, which are in corresponding recesses

10 of the housing halves are embedded, connected to one another. The rear end of the case will from a locking block designed as a hollow body

11 formed, which by means of two strips 12 and 12 'comprises the rear edges 13 and 13' of the housing halves. The bolt block 11 also serves as a buffer housing for receiving a buffer device. The buffer forces acting in the longitudinal direction are transmitted to the housing halves 1 and V via shoulders 14, 14 'provided on the buffer housing.

The housing halves 1 and V consist of drop-forged workpieces, in which only the mating and guide surfaces designated in the drawing with a, b, c, d as well as those surfaces which are used to hold the latch block 11 holding the buffer device are machined need.

Claims (7)

Claims: 25 1. Automatic weapon, in particular machine gun, with an exchangeable barrel attached in the breech block housing, the front cylindrical end of the breech block housing being held in an outer, sleeve-like housing, characterized in that the breech block housing consists of two housing halves (1, V) which are divided in the vertical longitudinal center plane. consists, whose parts adjoining the outer housing (4) are held together by clamping means (9). 2. Automatic firearm according to claim 1, characterized in that the preliminary workpieces for the housing halves (1, V) are made by forging in the die. 3. Automatic firearm according to claims 1 and 2, characterized in that the clamping means (9) for absorbing the side forces are tension rods. 4. Automatic firearm according to claim 1, characterized in that the shell halves (2, 2 ') enclosing, designed as a bushing outer housing (4) is applied by shrinking onto the two semi-cylindrical shell halves of the housing halves (1, V) . 5. Automatic firearm according to claim 3, characterized in that the clamping means (9) forming tension rods also connected to the housing halves (1, 1 ') by shrinking are. 6. Automatic firearm according to claims 1 to 5, characterized in that the rear ends of the housing halves through a to absorb longitudinal and transverse forces suitable locking block (11) are connected. 7. Automatic firearm according to claim 6, characterized in that the locking block (11) is designed as a hollow body for receiving the buffer device. Considered publications:
German Patent Nos. 1024 849, 730 560; U.S. Patent No. 2345127. 1 sheet of drawings 809 633/145? 11.68 © Bundesdruckerei Berlin