DE1196998B - Magazine for automatic firearms - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. Cl .:

F07k

German KL: 72 h-11

Number: 1196 998

File number; R32388 Ic / 72 h

Registration date: 30. Marc 1962

Opening day: July 15, 1965

The invention relates to a magazine for automatic firearms, in which several do not interrelate coupled, d. H. unstrapped cartridges are kept in stock. Such magazines are mostly provided with a spring-loaded feed device, by means of which the cartridges of the Loading device, i.e. the breech block of the weapon, are supplied. The magazine assigns for this purpose a mouthpiece which is inserted into a corresponding opening of the weapon.

The previously known types of such flat magazines do not always meet the increasing requirements for a high rate of firing, in that disturbances occur in the supply of the cartridges. The feed rate increase _s had initially reinforced the magazine spring. This, however, had the disadvantage that the loading process was also disrupted as a result of the rebound of the cartridges and furthermore deformations occurred due to the impact of the cartridges on the lips of the mouthpiece, which also resulted in loading disruptions.

To avoid this disadvantage had already been proposed _s to provide the magazine with a against the pressure of a return spring can be tensioned by the magazine spring accelerator consisting disposed of on the wall of the magazine and pivotable about lying parallel to the magazine wall axes levers, formed the elastically resilient wall parts. This created an elastic collecting space. The disadvantage here, however, was that considerable frictional forces arise on the cartridge walls in the area of the elastic walls, but overcoming them made it necessary to reinforce the magazine spring if the requirement for a high rate of fire is to be met. In addition, in this embodiment, the cartridges located in the vicinity of the magazine outlet were subjected to a sequence of positive and negative accelerations, which can also cause malfunctions in the weapon.

The invention has now set itself the task of eliminating these disadvantages and one with a Accelerating device provided magazine to create, based on the latter known Solution to the requirements for automatic weapons, e.g. machine guns, to a large extent is fair.

This is achieved in that the acceleration levers are designed as angled levers, their angled ends between two adjacent cartridges in the interior of the magazine cross-section a magazine for automatic firearms

Applicant:

Rheinmetall G. mb H.,
Düsseldorf, Ulmenstr. 125

Named as inventor:
Hartmut Menneking,
Hermann Henning, Düsseldorf

are able to access and are shaped so that the cartridge outgoing for loading accelerates during the loading stroke and the oncoming cartridge cocks the lever. This makes it possible to compare To use a weak magazine spring or to enable faster cartridge feed without reinforcing the magazine spring.

In a further advantageous embodiment of the invention, the in the interior of the magazine protruding ends of the acceleration elements be designed such that a rebound already accelerated cartridge the point of contact between this and the acceleration element lies within the angle formed by the longitudinal axis and by that through the longitudinal axis of the cartridge and is formed by the pivot axis of the accelerator lever, drawn connecting line, so that. the rebounding cartridge is blocked by self-locking. This creates the advantage an even greater functional reliability of the weapon is achieved,

Further details of the invention are explained in the description of an exemplary embodiment, which is shown in the drawing. It shows

F i g. 1 a magazine in longitudinal section,

F i g. 2 a cross-section to this (on a larger scale),

Fig-3 and 4 the magazine with the breech block with the bolt closed,

5 shows the movement process during the acceleration phase.

The magazine 1 has at its lower end the mouthpiece 2, which is inserted into a corresponding opening of the weapon, not shown, with the breech V open. In the magazine, the cartridges 3 are arranged one above the other in a row, the lowest of which, initially to be inserted into the weapon, is

509 600 / 1Γ

Piece provided lips 4 rests, from where it is inserted into the barrel by the locking piece V indicated in FIGS. As a result of the pressure of a magazine spring 5 arranged in the upper part of the magazine, the cartridges are continuously fed to the mouthpiece and thus to the weapon. This spring is arranged in a box-like frame 6 which is longitudinally displaceable in the magazine.

In the area of the mouthpiece, an opening 7 is provided in a side wall of the magazine, through an angled lever 8 with its angled lower leg 9 in the interior of the magazine protrudes. The lever 8 consists of a U-shaped, outwardly open pressed sheet metal part and is around a Bolt 10 pivotally mounted parallel to the side wall of the magazine on the one hand in one on the Wall-mounted bearing block 11 and on the other hand in the webs 8 'of the lever 8 is held. By means of a located on the bolt coil spring 12, the lever is under tension in the in F i g. 2 shown Held position in which the leg 9 protrudes into the interior of the magazine and wherein the Penetration depth α is limited by a stop 15. To refill the empty magazine the lever 8 swung out.

The lever 8,9 serves as an accelerator when feeding the cartridges to the weapon. When the lower cartridge lying on the lips 4 is pushed out of the magazine by the breech block and inserted into the barrel of the weapon, the remaining cartridges located in the magazine are snapped forward in the direction of the mouthpiece by the magazine spring. Here, as can be seen in FIG. 2, the lever 8, 9 is pressed outwards by the cartridge located directly above the leg 9 under the pressure of the magazine spring against the restoring force of the spring 12. After the cartridge has passed the lever end 13, the lever snaps back, giving the cartridge a small additional acceleration impulse, as a result of which it is moved more quickly towards the mouthpiece. However, the acceleration pulse is not so strong that deformations of the lips 4 can occur. By changing the penetration depth a of the leg 9, the size of the additional energy to be emitted can be varied. Furthermore, you have it by appropriate shaping of the leg 9 or the spring H in the hand, the acceleration pulse to the given conditions, z. B. the mass of the cartridge or the desired cadence to adjust.

3 and 4 show schematically in cross-section and in side view the retracting breech . The breech runs back the way behind the cartridge base, and when it travels again, it detects the cartridge from the position according to FIG. 2 and insert it into the gun. The lowermost cartridge of the magazine must therefore move from its position to FIG. 1 in the short period of time that the shutter needs to cover the path w twice, which is, for example, about 7 ms. 3 in the position according to FIG. 2 and must have come to rest there.

FIG. 5 now shows the movement process of the cartridges during the acceleration phase, that is to say during the period of time in which the breechblock runs the path w back and forth again. As in Fig. 5 can be seen, the two cartridges to be loaded in the sequence under the action of the accelerator lever or levers are given a component of movement in the direction of the mouthpiece and thus an acceleration, so that they briefly run ahead of the other following cartridges until the lower cartridge opens the lips 4 comes to rest. This state is shown in FIG. 2, in which, as a result of the design of the lever 8 according to the invention, the two lower cartridges are immediately calmed and rebound is prevented. The pushing out of the next cartridge can thus take place undisturbed, regardless of whether the other cartridges in the magazine have reached the connection to these two cartridges again.

To achieve the self-locking that prevents the cartridges from rebounding, a certain minimum penetration depth α of the acceleration lever is required, which is expediently about a quarter of the cartridge diameter. Optimal self-locking of a rebounding cartridge is achieved when the lever end 13 is designed and the pivot point (bolt 10) of the lever is mounted in such a way that the contact point 14 between the accelerated cartridge and the lower leg 9 is within the angle defined by the Longitudinal axis X of the magazine and is formed by the connecting line Y drawn through the longitudinal axis of the cartridge and through the axis of rotation of the bolt 10.

Only one accelerator lever is shown in the drawing. This may be sufficient in some cases. But it is easily possible to also have one on the opposite side wall of the magazine further acceleration lever to be provided. Furthermore, in some cases it can be beneficial to have two to provide such an accelerator lever on one side wall or on both. The acceleration elements be designed in different ways, for example as on the side walls of the magazine riveted leaf springs that have an angled leg. Furthermore, the acceleration elements also consist of a helically attached to the bolt 10 leaf spring, whose Has a correspondingly angled leg 9 at the end.

Finally, an advantageous embodiment of the invention also consists in that the pivot axis 10, on which the accelerator lever 8 is attached, is replaced by a torsion bar spring. The spiral spring 12 can then be omitted.

In order to make the friction conditions within the acceleration system particularly favorable, the acceleration elements can also very advantageously protrude into the interior of the magazine Lever end 13 with rolling elements, for. B. Rolls or the like. Be provided.

Claims (7)

Patent claims: 1. Clip-on magazine for automatic firearms with a return spring against the force of a return spring Accelerator device for cartridge feed, which can be tensioned by the magazine spring, consisting of arranged on the wall of the magazine and around parallel to the magazine wall horizontal axes pivotable levers, characterized in that the Accelerator levers are designed as angled levers (8), the angled ends (9) of which between two adjacent cartridges are able to intervene in the interior of the magazine cross-section and are shaped so that the cartridge outgoing for loading is accelerated during the loading stroke and the oncoming cartridge tensions the lever (8). 2. Magazine according to claim 1, characterized in that the pivot axis (10) of the acceleration lever (8, 9) is replaced by a torsion spring. 3. Magazine according to claim 1, characterized in that the acceleration lever (8) from consists of a leaf spring. 4. Magazine according to claim 1, characterized in that the acceleration lever (8) from a U-shaped, outwardly open pressed sheet metal part consists. 5. Magazine according to claim 1 to 4, characterized in that the acceleration elements at their protruding into the interior of the magazine lever end (13) with rolling elements, for. B. Roles or the like., Are provided. 6. Magazine according to claim 1 to 5, characterized in that the protruding into the interior of the magazine ends of the acceleration elements (8) are designed such that upon rebound of an already accelerated cartridge, the contact point (14) between this and the acceleration element within the angle which is formed by the longitudinal axis (Z) of the magazine and by the connecting line (Y) drawn through the longitudinal axis of the cartridge and the pivot axis of the acceleration lever, so that the rebounding cartridge is blocked by self-locking. 7. Magazine according to claim 1 to 6, characterized in that the penetration depth (ä) of the acceleration lever (8) is about a quarter of the cartridge diameter. Considered publications:
German patent specifications No. 858 944, 551 221,
729; British Patent No. 616,909;
U.S. Patent No. 2,122,003. 1 sheet of drawings 509 600/17 7.65 © Bundesdruckerei Berlin