DE1050240B - AUTOMATIC FIREARM - Google Patents

Description

Bur. Ind. Ligenaoiu , 8 APR. 1959

Λ N M E L D E T A G: JULY 6, 19;

NOTICE THE REGISTRATION AND ISSUE OF THE FROM LEGE SCRIPTURE:

FEBRUARY 5, 1959

The invention relates to an automatic firearm with a multi-part breech and additionally to the closing spring arranged buffer spring and consists essentially in that the buffer spring a Forms part of the closure that is at least two thirds of the cartridge length over the cartridge feed opening can run back out. The weapon is used to fire differently more powerful Ammunition.

When firing inefficient ammunition, the breech will return at least two thirds of the cartridge length beyond the cartridge feed opening issued under braking by the closing spring, with the buffer spring acting as the closing part, the movements of the entire closing mass participates, but does not function while firing the more powerful ammunition the return energy of the lock after overcoming the closing spring with the assistance of Buffer spring is destroyed.

There are already automatic firearms known in which in addition to the closing spring a Buffer spring is provided. However, the buffer spring is not part of the non-multi-part system Closures ^. Furthermore, the return path of the breech with that weapon is not at least two Third of the cartridge length beyond the cartridge feed opening. Incidentally, in that version Purpose. Object and effect different from the present invention.

The drawing is purely for example using a recoil gun with a fixed barrel and semirigid locking system an embodiment of the Errmduugsgemäße firearm is shown. It shows

Fig. 1 the weapon in longitudinal section, with the lock in the firing position.

FIG. 2 shows the weapon according to FIG. 1 with the breech open.

3 shows the weapon according to FIG. 1 in horizontal section.

The example described below shows means which make it possible to fire less powerful ammunition with a lower recoil impulse as well as more powerful cartridges with a considerable recoil impulse, the breech working in the first case in a floating manner , ie not as far as its rear stop, and in the second case in a buffered manner is.

The barrel is welded to the weapon housing 3 with a locking piece 2 is connected. In the rear part of the locking piece 2, the bolt head 4 is guided. Afterward on this part 4 there is a further closure part 6 which has a relative movement to the head 4

Automatic firearm

Applicant: Dipag Ltd., Tangier (Tangier)

Representative:

Dr.-Ing. A. ν. Kreisler, Dr.-Ing. Κ. Schönwald,
Dipl.-Chem. Dr. phil. H. Siebeneicher
and Dr.-Ing. Th. Meyer, patent attorneys,
Cologne 1, Deichmannhaus

Claimed priority:
Switzerland from June 9, 1955

* 5 movement, the part 6 of the closure with a nose 6a overlaps a Mase 4ο of the part 4. Between the guide piece 9 of the closing spring 7 and the closure part 6 is a z. B. switched on consisting of disc springs buffer device 9o, which also forms part of the closure.

The closing spring 7 traverses a section of a base piece arranged in the rear part of the weapon

10. In recesses 2a of the locking piece 2 engage in the lock head 4 mounted closure rollers 5 which are held on the wedge surfaces 6 1> of VerschluLlteiIes 6 under the pressure of the closing spring 7 is engaged with the lock piece. 2

The function and mode of operation is as follows: Let the barrel 1 be supplied with a cartridge from a magazine in a known manner; after pulling the trigger, this cartridge was ignited. The cartridge case, which is under the pressure of the powder gases, is supported at the rear against the bolt head 4. The locking rollers 5 rest in the locking piece 2 and, since the system shown is not self-locking, slide against the recesses 2a in the locking piece 2 until they have stepped back into the locking head 4. The closure part 6 is thereby accelerated to the rear according to the selected translation or the selected slope of the wedge surfaces 6 b and thus has a higher return speed than the closure head 4. This accelerated mass here also sets that

309 743 65

Claims (1)

Shooting spring guide piece 9 with the buffer device 9a moves backwards against the pressure of the closing spring 7. When the bullet has left the barrel and the gas pressure has dropped. the locking compound 6 has stored so much kinetic energy that it completely unlocks the locking head 4 via the driving lug 4 a through the driving lug 6 a and takes it back with it. On this back, the trigger is cocked in the known manner and the cartridge case ejected in the usual way. The roller engagement in the locking piece 2 and the wedge flats 6l> on the breech part 6 are coordinated so that they are able to open the breech just enough when using ammunition with the small projectile impulse (normal infantry ammunition -). In each case, the cap 4 runs back beyond the cartridge diode of the next cartridge to be fed, as shown for example in Fig. 2. This minimum retraction of the entire breech; - is sufficient to ensure the function of the weapon; the weapon housing can be released by a fixed or buffered stop, as is the case with all machine guns, self-loading rifles and many submachine guns could continue to run back according to FIG. 2 before e r would find its stop on the collar IOo of the bottom piece 10. This measure is sufficient to compensate for the slight differences in momentum within an infantry ammunition production process, so that the shutter normally runs dead against the pressure of the closing spring 7 in a so-called floating mounting and does not come into contact with the collar IOa of the base piece 10 . The shooter therefore only has to absorb the pure weapon recoil impulse, and the weapon does not experience any additional earthencing as a result of the stop of the locking compound on the base piece. which has a very positive effect on accuracy, especially when shooting in continuous fire. While the projectile energy of the known infantry cartridges is generally used to combat infantry Targets are sufficient, you may want to defend yourself against lightly armored targets to be able to. For this it is necessary to have cartridges higher power to be able to fire with significantly higher projectile impulse from the weapon. With the introduction of armor-piercing steel core projectiles in the infantry, attempts have been made to take this into account. Where it was a question of automatic infantry weapons, from which such ammunition had hitherto been fired with different impulses, these were exclusively and in any case buffered weapons with only very little ίο Coating over the cartridge base of the next cartridge to be fed. For functionality and durability reasons it was even usually necessary to match the projectile impulses of the various ammunition to one another as far as possible adjust or the weapon function by means of adjustable gas nozzles with gas pressure loaders accordingly to regulate and the desired increased penetration power against armored targets through the to achieve the appropriate choice of material and heat treatment of the projectile core. With the weapon described above, it is possible that the pulse difference between the cartridges to be fired can be selected to be significantly greater without having to take additional precautions on the weapon, in that the buffer suspension 9a is only effective when the high-pulse ammunition is fired by contributes to the destruction of the return energy of the other closure parts, while in all other cases it participates in the floating movements of the closure only as an additional closure part. This enables a much smoother shooting and a »aiming« of the weapon with continuous fire. PATENTAN.SI'HVCH: Automatic firearm with multi-part breech and buffer spring arranged in addition to the closing spring, characterized in that the buffer spring (9a) forms part of the breech (4, 6, 9a) which can run back at least two thirds of the cartridge length beyond the cartridge feed opening. Contemplated publications:
German Patent Nos. 925 337, 687 392, 588 477, 582 097; Swiss patent specifications No. 267988. 284 466, 201 660, 176 978; French patent specification No. 1 046 084:
British Patent No. 660 073. 1 sheet of drawings © 809 748/65 1.59