DE1219362B - Decay bullet for practice cartridges - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Int. σ .:

Number: File number: Registration date: Display day:

F42b

German KL: 72d-6

1219 362
R39334Ic / 72d
November 27, 1964
June 16, 1966

The invention relates to a decaying projectile for training cartridges for handguns or machine guns, which consists of a plastic projectile casing that extends to the bottom, which is closed by means of a projectile base after the introduction of a powdery heavy material filling and on which a guide tape stiffened transversely to the projectile axis is trained .

Such a decay projectile, both in its external shape and in terms of weight mimicked a normal sharp projectile, essentially fulfills all the conditions necessary for safety a proper weapon function are necessary.

The extraordinarily high mechanical loads, especially when loading and when Shot development, the intrinsically flexible bullet casing could withstand the fact that it above all in the area of the outwardly jumping ribs of the guide band, in which they are deformed is most exposed, has a stiffener arranged transversely to the axis of the projectile.

However, this advantage is opposed to the disadvantage that formed by the projectile casing Stiffening the internal projectile form experiences an interruption, which the accommodation of a pre-pressed and the projectile interior shape adapted, one-piece projectile core makes impossible.

With such a training bullet, however, a weight corresponding to the sharp bullet is guaranteed, must instead of a compact several, each with the inner shape of the GeschoßEülle Adapted cross-sections are produced and used individually, or the bullet casing is with a pourable metal powder filled. While in the former case the production and loading of several Pressings per storey are cumbersome and time-consuming as well as expensive, there is one by pouring them in Bullet shell filled with loose iron powder due to the lower density no guarantee that the target projectile weight has been reached. Also by subsequently compressing the powder filling the target weight cannot be achieved by means of a stamp or by vibration, apart from that that the introduction and compression of the filling is quite time consuming.

The problem to be solved is to avoid these disadvantages. This is done according to the invention achieved in that in the pliable projectile shell in the area of the guide tape corresponding annular bead an annular or disc-shaped stiffening element is used. Included can according to the invention from the stiffening element

Decay bullet for practice cartridges

Applicant:

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

Named as inventor:

Dr.-Ing. Raimund Germershausen,

Heinz Häp, Düsseldorf;

Wilhelm Binge, Wuppertal-Vohwinkel

consist of a disk supported on the inner wall of the bullet casing or a ring, whose thickness is essentially the width of the

_ao ring bead corresponds to.

The decisive advantage of an insertable stiffening element consists in the fact that this can be included in the floor filling in such a way that that both can be used as a unit in the projectile shell. In this way, a completion of the Filling can be made elsewhere without involving the bullet envelope, which does not only economical production of the individual parts, but also time and space-saving loading these parts is made possible to a floor. To make sure that it is designed as a disc Stiffening element when the projectile is fired through the possibly evasive rearward The bulk of the heavy material filling is not damaged or even destroyed, closes immediately A buffer reaching to the floor of the floor is attached to the pane, which advantageously consists of several felt washers consists.

Because the weight of the decay projectile comes as close as possible to that of the sharp projectile or should correspond better to this, is as a weight compensation for the specifically lighter disk pack at the end of the same a thin lead disk is provided, which is against the frame of the floor of the projectile supports. Instead of the disk as a stiffening element, a ring can also be used. In this case, the passage opening for passing through a plastic bag containing the heavy material filling be used, which has a constriction in the area of the ring for this purpose then to take up the full cross-section again up to the floor of the storey.

609 579/117

Further details of the invention are based on the drawing and the description below refer to. So shows

1 shows a decaying projectile with a cardboard disk as a stiffening element and an adjoining one Slice package in longitudinal section and

F i g. 2 shows a decay projectile with a stiffening element in longitudinal section.

In the bullet casing 1, which is provided with predetermined breaking points 2, there is the powdery heavy material bullet filling 11, from the tip of the bullet to the level of the annular bead corresponding to the guide band 3 is enough. The filling can be poured in loosely or from a shrinkable plastic bag 14 enclosed in the bullet shell 1 to be used. The floor filling 11 closes a cardboard disk 16, which is supported on the inner wall of the bullet shell 1 at the level of the annular bead 3 and the thickness of which corresponds essentially to the width of the annular bead 3. After the storey floor 6 facing the cardboard disk 16 is one of several layers of a flexible material existing buffer 17. Felt disks are advantageous for this. This allows small axial Movements of the bullet filling caused by the persistence of the same when firing be balanced without damaging the cardboard disk 16.

To compensate for the weight of the specifically lighter disk pack 16, 17, a thin lead disk 18 supported against the collar 6 b of the floor 6 is provided, which, due to its low cohesive force, guarantees rapid dismantling.

Between the lead disk 18 and the floor 6 a cavity remains free, which with a hardenable substance, e.g. B. is filled with resin 19. The floor 6 can be used in any way before insertion into the bullet casing 1 or afterwards via the bore 20 with the cast resin filling 19 are charged, in the former case the bore 20 for receiving the cast resin excess Is used.

In another embodiment of a decay projectile, the stiffening element consists of a ring 21, which like the cardboard disk 16 at the level of the annular bead 3 on the inner wall of the bullet shell 1 is present. The ring 21 made of cardboard or a corresponding plastic can be made of one piece or consist of several segments. The passage opening of the ring 21 offers the Possibility of carrying out a plastic bag 14 containing the bullet filling 11, which is in the Connection to the ring 21 again assumes its full diameter up to the floor 6. The ring 21 is thus embedded in a constriction of the bag 14, its outer annular surface with the Coat of the plastic bag 14 runs flush. Sliding the ring 21 onto the bag 14 can take place as long as its end reaching from the constriction to the bottom is not yet filled. The ring 21 and the filled bag 14 form an inseparable unit which can be pushed into the bullet casing 1 is.

On the other hand, the ring 21 can be inserted into the constriction of the filled bag 14, if the ring 21 consists of individual segments connected to one another by clamp-like means. The Vorteil.des Ringes21 is that the heavy material bullet filling 11 through the ring can be continued up to the floor 6, which apart from the excellent stiffening the weight of the bullet at the critical point

ίο this decay bullet largely resembles that of the sharp one Floor is adjusted.

Claims (7)

Patent claims: 1. Decay projectile for practice cartridges for handguns or machine weapons, which consists of a There is plastic bullet shell reaching to the ground, which after the introduction of a powdery heavy material filling is closed by means of a floor, and at the one ao stiffened guide band transversely to the projectile axis is formed, characterized in that that in the resilient projectile shell (1) in the area of the corresponding to the guide tape Annular bead (3) an annular or disk-shaped stiffening element (16, 21) is used is. 2. decay projectile according to claim 1, characterized in that the stiffening element from one on the inner wall of the shell (1) supporting disc (16), the thickness of which is essentially the width of the annular bead (3) corresponds. 3. Decay projectile according to claim 1 and 2, characterized in that the disc (16) between the projectile filling (11) accommodated on the front projectile part and a ^{buffer (17) which compensates for a slight axial displacement of the interior equipment and which consists of 1} felt disks or the like ) is arranged. 4. decay projectile according to claim 1 to 3, characterized in that as the floor (6) facing the end of the disk package (16, 17) a thin lead disk (18) is provided is, which is supported against the floor (6). 5. decay projectile according to claim 1 to 4, characterized in that the between the lead disk (18) and the floor (6) formed cavity with a hardenable substance, for. B. with a cast resin filling (19) is provided. 6. Zeriallgeschoß according to claim 1, characterized in that the stiffening element from one on the inner wall of the projectile shell (1) supporting one-piece or of segments composite ring (21), the passage opening of which is the constriction of a after the ring (21) widening again, reaching up to the floor (6), the floor filling containing plastic bag (14) forms. 7. decay projectile according to claim 1 and 6, characterized in that the ring (21) and the filled plastic bag (14) are connected to form a unit that is inserted into the bullet casing (1) is introduced. 1 sheet of drawings 609 579/117 6.66 © Bundesdruckerei Berlin