DE1578207A1 - Decay bullet for target practice cartridges - Google Patents

Description

Disintegration shell for target practice cartridges

The invention relates to a decaying projectile in connection with a short range flight projectile for target training cartridges for handguns or machine guns.

Decay projectiles of this type are known. Such a projectile should largely correspond to a sharp projectile in terms of its external shape and weight. Only when these requirements are met can the decaying projectile be fired from automatic weapons without impairing the locking and loading mechanism of the weapon. On the one hand, the decay projectile should withstand the extraordinarily high mechanical stresses during the feeding and loading process and also enable the weapon mechanism to work smoothly while largely protecting the barrel against wear; on the other hand, it should be easy to dismantle after leaving the barrel.

All of these demands can be met with one of a thin walled and with a plurality of predetermined breaking points provided in the longitudinal direction plastic bullet casing, wherein the bullet weight corresponding to a sharp bullet Insertion of a bullet filling consisting of heavy material pellets is attainable.

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The invention is now based on the object of this for hand fire and machine weapons in the same way to connect suitable decay projectile with a target training projectile, which after the immediate dismantling of the decaying projectile in front of the pipe should continue to fly over a limited distance.

In itself, this is a combination of a decay bullet with a Target practice bullet known. The decay projectile consists only of a plug made of paper, fiber or even from a plastic-sawdust mixture, on or in the tip of which a metallic projectile body is glued or embedded in it is. With this arrangement, despite maintaining the external shape of the sharp projectile, the same projectile weight cannot be achieved represent.

Just the fact that the decaying projectile is way below the weight of a corresponding sharp projectile, whereby it does not even bear the weight together with the metallic Yor projectile of the sharp bullet, proves that the known bullet combination without additional means on the weapon is only suitable for single fire from handguns. These The only possible use is for the metal bullet glued to the tip of the bullet, which, thanks to its tight fit already has sufficient centering in the gun barrel. 63 behaves differently with the one embedded in the projectile cavity Metal bullet that does not have a sufficient barrel due to its much smaller caliber compared to the rifle barrel is centered and therefore gives rise to uncontrolled movements while running. The bedding of the projectile in the top of the aus a plastic-sawdust mixture consisting of a decaying bullet

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is unsuitable for centering in the barrel, so this is known GesGhoßkombination does not even come into consideration for single fire from handguns.

These disadvantages and inconveniences become with a decaying projectile for handguns or machine guns, which consists of a thin-walled bullet shell with predetermined breaking points and one inside introduced, closed by a floor is heavy material filling, eliminated according to the invention in that this Projectile, which corresponds to its weight and its external shape like a sharp projectile, in the projectile tip a flying projectile is arranged supportable from a short range, wherein the deposition is designed such that it the missile Holds centrally guided until after leaving the tube and only with the bursting of the decaying projectile with the release of the flight projectile is detachable from the fragments of the decaying projectile.

The support advantageously consists of a separate insert body, which is composed of several segments and partially protrudes into the shell. In the longitudinal section he sees Insert body from tong-shaped, the jaws of which protrude from the projectile shell hold the missile captive while the legs rest against the bullet casing from the inside up to the level of the guide bead.

Between the jaws and the legs, a transverse rib is provided on the insert body, against the cylindrical collar of which the bullet casing rests. The latter therefore does not have a projectile tip, but rather just one approach to it. The opening for receiving the insert body is smaller in the Durohaeseer than the outer leg diameter.

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Further details of the invention are explained in more detail with reference to the drawing of an exemplary embodiment of the decay projectile, namely show:

Fig. 1 is a combined decay projectile with a missile in longitudinal section and

Fig. 2 such a projectile in plan view.

The projectile shell 1 consists of a thin-walled hollow body, open at the top and bottom, of essentially cylindrical shape. Only the upper end is slightly drawn inwards, making the approach 1a of an ogival bullet tip visible will. The upper opening 1b of the projectile casing 1 has one to Floor axis running parallel to the cut surface. In the rear part of the projectile casing 1 stands out as an annular one Reinforcement of the guide bead 2, the width of which is slightly larger than that of the sharp projectile. This wide guide bead 2 offers provided that a stiffening element 8 arranged inside the storey is assigned as an abutment, the guarantee for effective sealing and centering of the projectile in the tube. The part that extends below the guide bead 2 to the floor the projectile casing 1 preferably has a transverse corrugation or a corresponding surface interruption, which alone or in connection with an adhesive responsible for the prescribed pull-out resistance of the attached cartridge case is. Finally, the inner wall of the projectile casing 1 is also provided with several predetermined breaking points running in the longitudinal direction of the projectile 4 provided.

The starkwandiga floor 5 has a long hollow shaft 6, the opposite of the projectile shell 1 by means of thread 6a or a cross corrugation. is determined. "Here the face of the

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Hollow shaft 6 extends to the stiffening element 8, which it serves as an axial abutment.

So that the hollow shaft 6 is properly dismantled, can this - just like the bullet shell 1 - can be equipped with several predetermined breaking points running in the longitudinal direction.

In the head part of the projectile casing 1 sits an insert body 13 which, according to the illustrated embodiment, consists of three segments consists. The insert body 13 is - seen in longitudinal section - formed with jaws 13a and legs 13b in the form of pliers. While the jaws 13a protruding from the projectile casing 1 partially encompass the flight projectile 14, the legs 13b protrude through the opening 1b of the bullet shell through, where it with its larger diameter than the opening 1b against the inner wall of the Bullet shell 1 come to the plant. A very precise fixation of the insert body 13 in the projectile casing 1 is thereby achieved. In this case, if the end face of the legs 13 extends up to the stiffening element 8, an additional axial one can also be used Support are created.

Between the jaws 13a and legs 13b of the insert body is a transverse rib separating the projectile 14 from the interior of the projectile 13c is provided, the tip of which, in relation to the individual segments, coincides with the axis of the bullet. At the level of this transverse rib 13c is located on the outside at the transition between jaws 13a and Legs 13b a cylindrical collar 13d against which the inner Cut surface of the opening 1b of the arcuate extension 1a of the projectile shell 1 is firmly attached. The missing bullet tip is in the essentially with the outer contours of the jaws 13a and dee Flight bullet 14 imitated.

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The projectile is expediently loaded in such a way that the insert body 13 is first inserted by inserting the missile 14 is completed, whereupon the flexible legs 13b are compressed somewhat, for example by means of a guide funnel and through the opening 1b. are introduced into the empty bullet shell 1. Correct fit of the insert 13 adjusts itself when the opening 1b rests against the cylindrical collar 13d. Now the two heavy material compacts can 10 and 11 are used in the upper floor space, followed by the stiffening element 8 as a conclusion. Appropriate the compact is inserted into the hollow shaft 6 of the projectile base 5 when the latter is screwed or screwed into the projectile casing. is fixed therein by other holding means.

This simple structure of the projectile provides a high degree of longitudinal and transverse stability and excellent support and centering of the missile and, last but not least, a good seal between the projectile and the inner wall of the pipe is achieved. So When firing, the wide guide bead 2 prevents the powder gases from flowing past the projectile. With increasing acceleration of the projectile, the hollow shaft 6 expands under the load the inertial forces of the filling compound to the outside and is pressed firmly against the inner wall of the pipe. This results in a real lulling effect, which benefits an improved gas seal and a centric projectile guidance.

The enclosure of the missile 14 in the insert body 13, the Both an axial support and a centering of the missile 14 in the tube ensures that the tube wall is not touched by the missile 14. Through this

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the inside of the pipe is not only protected from contamination, but a better centering of the missile 14 is also achieved. After leaving the pipe, the tears under internal tension Filling compound standing hollow shaft 6 and the projectile casing 1 along the predetermined breaking points 4 apart. The ones that fold outwards Casing strips naturally reduce the cross-sectional load on the ground and increase the drag coefficient, which means the bottom and shell fall to the ground soon after exiting the pipe.

When the projectile casing 1 is dismantled, the insert body 13 also dissolves into its three components and thus gives the flying projectile 14 free for onward flight.

Of course, deviations in the exemplary embodiment shown are possible within the scope of the invention. So can instead of the sub-caliber flying projectile, a projectile of the same caliber can be used, in which the twist is transmitted by toothing takes place with serving as a support heavy material compact.

As far as the insert body 13 is concerned, they can consist of two or more than three segments made of plastic, light metal or like. Be made. On the stiffening elements 8 can can be dispensed with if through the drawn down to the hollow shaft β Leg 13b of the insert body 13 an additional stiffening of the projectile can already be achieved.

If there are no particularly restrictive conditions with regard to the effective range of the fragments of the decaying projectile, it is possible to use a light-weight for the decay projectile. a metal cover to be provided.

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Claims (7)

Düsseldorf, September 26, 1966 Düsseldorf Bi / r File 393 '*' 1578207 Claims Iy decay projectile in connection with a flight projectile of less Range for target training cartridges for handguns or machine weapons, characterized in that the projectile, which corresponds to its weight and its external shape according to a sharp projectile, in the projectile tip Flying projectile (14) is assigned to be supported so that it can be supported over a short range, the support (13) being designed in such a way that that it keeps the flying projectile (14) guided centrally until it leaves the tube and only when the decaying projectile bursts is detachable from the fragments of the decaying projectile with the release of the missile (14). 2. decay projectile according to claim 1, characterized in that the support (13) consists of a Insert body (13) made of plastic and partially protruding into the projectile casing (1) and composed of several segments, Light metal or the like. Is. 3. decay projectile according to claim 1 and 2, d a d, u r c h characterized, that the insert body (13) is designed as pliers-shaped seen in longitudinal section, its Jaws (13a) protruding beyond the projectile shell (1) hold the flying projectile (14) captive while the legs (13b) rest against the inner wall of the bullet casing (1) up to the level of the guide bead (2). _ ₂ _ 1098 I 1/0136 4. decay projectile according to claim 3, characterized in that that between the jaws (13a) and legs (13b) of the insert body (13) a missile (14) from the floor interior separating transverse rib (13c) is provided, the tip of which is related to the individual segments coincides with the floor axis. 5. decay projectile according to claim 4, characterized in that that at the level of the transverse rib (13c) which already has an arcuate projection (1a) of an ogival Projectile casing (1) provided with the tip of the projectile firmly against the insert body (13) provided with a cylindrical collar (13d) rests, the missing projectile tip essentially with the outer contours of the jaws (13a) and the flying projectile (14) is mimicked. 6. decay projectile according to claim 5, characterized g e, that the insert body (13) receiving opening (1b) of the projectile casing (1) is narrower than the outer leg diameter. 7. decay projectile according to claim 1, characterized in that the flying projectile has the same caliber i3t, whereby it can be supported against the compact and such it is interlocked that a twist transmission through the interlocking is possible. 1 098 Ί 1/0136 Blank page