DE2300473A1 - DRIVE CHARGE FOR HANDGUN DEVICES - Google Patents

Description

A 313/314 72 MU / De

Company BUCK KG., 73 ^ 1 Bad Überkingen, Geislingerstr. 21

Propellant charge for hand launchers

The invention relates to a propellant charge for hand launching devices with a high projectile weight compared to the weight of the device. Such hand launching devices are used to launch comparatively heavy projectiles, such as incendiary containers or Light bomb beds, made of light, mostly for single use to fire certain launch tubes. A disadvantage is that because of the unfavorable weight ratio between the launcher and the projectile, the propellant charge recoils only to a very small extent from the device is absorbed, so acts for the most part on the hand of the shooter. But this either limits the achievable The range of the shot or the weight of the bullet if the device is to be handled safely and accurately.

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The object of the invention is therefore, without reducing the projectile weight and the range of the recoil significantly reduce the devices mentioned. According to the invention, this object is achieved by a propellant charge for handheld launchers solved, which is characterized by the subdivision into a comparatively small but quickly burning Initial charge for striking the stationary projectile and a comparatively large one arranged at a distance from it but delayed burning drawer to accelerate the projectile to the desired muzzle velocity. "Preferably the initial charge is condemned, the drawer unaffected.

The idea of reducing the recoil of a propellant charge by separating it was already known, but not the particular type of separation proposed by the invention. Just this special kind of separation The propellant charge, however, only enables the recoil in the hand-held launching devices of the type mentioned to decrease significantly. The small, rapidly burning initial charge hits the stationary projectile and ignites it Draw load, whereupon the slower burning draw load is prepared in motion by the initial charge surge The projectile located is accelerated to the desired final speed. Because for a given bullet weight the hardness the recoil essentially depends on it, with v / elcher

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If the stationary projectile starts moving at acceleration, the recoil hardness is significantly reduced in this way. Also recoil minäerna affects the different AKbremiseit two 7K cargo parts, best accessible through the aforementioned different condemnation. In the case of the initial charge, the preferably high damaging effect a short but comparatively weak impact on the floor of the projectile and thereby sets the projectile very much fast moving. The subsequently burned-off, not dammed up drawer, on the other hand, reacts more slowly, with the As a result, the hard initial shock turns into a dampened thrust.

Due to the spatial separation of the two partial charges, there is an ignition delay from the initial charge to the drawer charge causes. On the one hand, this delay should be so long that the drawer can only be loaded after the Projectile is ignited, and on the other hand so briefly that the drawer still burns completely as long as the Projectile is located in the barrel of the launcher so that the projectile is accelerated to its maximum speed. This one However, none of the previously known divisions of the propellant charge can meet requirements, only the one claimed Propellant charge distribution according to the invention.

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The invention will now be explained in more detail with reference to the drawing. On the drawing show:

1: schematically a side view, partly in section, a conventional launcher with a conventional propellant charge, and

FIG. 2: an identical view of the hand-held launching device from FIG. 1, but with a propellant charge according to the invention.

According to FIG. 1, the hand-held launching devices in question consist essentially of a guide tube 10, a foldable handle 11 and a trigger 12. In the guide tube 10, a dammed propellant charge 13 and a projectile Ik are housed. By operating the trigger 12, a firing pin ignites a primer, which in turn then burns the propellant Ij5. The propellant charge 13, which burns quickly as a result of the dam, gives the projectile Ik the required muzzle velocity, but a hard recoil of considerable magnitude occurs.

According to FIG. 2, according to the invention, the propellant charge is subdivided into a dammed initial charge 13a attached to the device and a non-dammed drawer 13b connected to the floor of the projectile Ik. When the trigger 12 is actuated, the firing pin strikes the primer cap and ignites the initial charge 13a, which strikes the projectile 14 and ignites the drawer 13b connected to the base of the projectile;

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the drawer then accelerates the projectile 14 to the muzzle velocity.

The initial charge 1 ^ a is much smaller than that Load 13bj is preferably the weight ratio from initial load to drawer between 1: 5 and 1: 7 « The total weight, from the damned initial charge and uninsulated Load should be a little higher than that of a usual, damn, undeployed propellant; preferably the increase in weight is about 50 ^ · The reason this is because, according to the invention, most of the load is not insulated. The spatial distance between The initial charge Ij5a and the drawer 13b must be dimensioned in such a way that that the effect of the drawer IJb only after it has been bumped of the projectile 14 begins by the initial charge, but so in time that the drawer IJb is still complete can burn down as long as the projectile 14 is in the tube 10. This ignition delay through spatial separation can be supported by suitable covers, such as pewter, lead or paper between the initial and drawer will.

The following numerical examples are intended only to facilitate understanding of the invention. To kill a bullet weighing 225 grams

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is a dammed propellant charge according to the state of the art a weight of 0.9 grams is used. To kill the same floor can be a highly insulated one according to the invention An initial load of 0.2 grams and an uninsulated drawer of 1.3 grams are used. Included the recoil measured in kiloponds, more precisely the recoil maximum, is then at approximately the same range Half, which understandably facilitates the handling of the weapon and the accuracy increased considerably. Of course, if such a reduction in recoil is not necessary is, the invention serve to increase the width of the boot and / or the weight of the bullet. Finally is still! thereon point out that, for safety reasons, the initial charge 13a should be so strong that it hits the projectile 14 to be ejected from the tube 10 if the drawer 13b fails capable, with an output range of 5 to 10 m being appropriate is.

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Claims (6)

- T - PATENT CLAIMS 1J propellant charge for hand launchers with opposite the device weight of high projectile weight, characterized by the subdivision into a comparatively small one but the initial charge (13a) burns quickly to initiate of the stationary projectile (14) and a spaced apart, comparatively large but delayed burning drawer load (lj5b) to accelerate the initiated Projectile (14) to the desired muzzle velocity. 2. Load according to claim 1, characterized in that that the initial charge (13a) dammed, the drawer (13b) is not insulated. 3. Charge according to claim 1 or 2, characterized in that the spatial distance between the initial charge (13a) and the drawer (13b), optionally with the switching on of easily fusible covers, is dimensioned such that the drawer (l3 "b) after starting the projectile - 8 409829/0057 ignites through the initial charge (l ^ a) and upon leaving of the device tube (10) burned through the projectile (14). is. ·. 4. Load according to claim 2 and J>, characterized in that the weight ratio of the initial load to the load is approximately 1: 5 to 1: 7. 5. Charge according to one of claims 1 to k, characterized in that the initial charge (13a ·) is dimensioned such that it corresponds to an ejection distance of the projectile (14) of 5 to 10 m. 6. Charge according to one of claims 1 to 5 » characterized in that the initial charge (l ^ a) is arranged on the launcher, the drawer (13b) on the bottom of the projectile (l4). 409829/0057