DE8807701U1 - Practice bullet - Google Patents

Description

DGH 333 DE
Ga/WB/Mr.

DIEHL GMBH S CO., 8500 Nuremberg

practice floor

The invention relates to a practice projectile with a thin-walled, ogive-shaped hood which is placed on a projectile body.

With known practice bullets that hit sandy ground at shallow angles, there is a risk that they will bounce off the sandy ground practically undamaged and then fall out over the safety area of the shooting range.

It is not permissible to make the hood or its arrangement on the projectile body so weak that it is destroyed even in the event of a flat impact with the target, as it will then no longer be able to withstand the stresses that occur when it is fed into the weapon barrel and when it is fired.

The object of the invention is to propose a practice projectile whose hood, on the one hand, withstands the stresses occurring during feeding and firing and whose rebound range, on the other hand, is reduced.

According to the invention, the above object is achieved in a practice projectile of the type mentioned at the beginning in that a supporting part made of plastic is arranged in the free space between the projectile body and the hood, that the supporting part is inserted with a pin into an axial bore of the projectile body and that the supporting part

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has star-shaped webs whose outer edges rest against the hood.

The support part stabilizes the thin-walled hood axially and radially so that it can withstand the forces that occur during feeding and firing. On the other hand, even at flat impact angles and low impact speeds, the support part deforms so that the hood breaks off. This increases the flow resistance of the parts, so that the rebound range is reduced.

' Another advantage of this practice bullet is

in that a particularly thin-walled, cheap hood can be used, since its inherently low stability is increased by the support.

Advantageous embodiments of the invention result from the subclaims and the following description of an embodiment. The drawing shows:

Figure 1 a training projectile in section,

Figure 2 is a view of the support part corresponding to Figure 1 \ 25 and

Figure 3 is a view of the support part in the direction of arrow III in Figure 2.

30

A training projectile has an internal projectile body (1) made of steel which is provided with a guide band (2). The projectile body (1) is provided with steps<3) on the front and, in itself, has a high air resistance. The projectile body (1) is provided with an axial bore (A).

The projectile body Ci) is a comparatively

thin-walled, ogive-shaped hood (5) is screwed on, which is made of aluminum, for example. The projectile body (1) together with the hood (5) forms a projectile whose ballistic values are similar to those of live

&Pgr;5 projectiles. There is a free space (6) between the hood (5) and the front of the projectile body (1). A support part (7) is arranged in this space. The support part (7) is made of plastic, such as polyethylene, polyurethane or polyamide.

The support part (7) has a pin (8) which is inserted into the hole (A). The support part (7) is provided with four webs (V) which are arranged in a star shape (see Figure 3). Only three webs (9) or more than four webs (9) can be provided.

The webs (9) have outer edges (10) whose course is adapted to the inner shape of the mortise (5). The webs (9) lie with rear edges (d")) in the area of the pin (8) on the front side of the projectile body (1).

The functionality of the described device is approximately as follows:

The support part (7) is fixed by the pin (8) to the

The projectile body (1) is held radially. It is supported axially on the body via the rear edges (11) of its webs (9). The outer edges (10) support the hood (5) both radially and axially.

When the projectile is fed into the gun barrel and during firing, as well as in flight , the support part (7) absorbs the axial and radial forces acting on the hood (5). The support part (7) also dampens vibrations of the hood (5).

During impact, especially during flat target impact, the webs (9) are deformed due to the elasticity of the plastic and their shape, so that

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I I I I I

the hood<5) breaks off in front of the projectile body (1). The then effective air resistance of the projectile body(1) is so high/ that the projectile body(1) only flies a relatively short distance. 05

To further increase the air resistance of the projectile body (1), surface parts can be arranged in the area of its steps or on the support part (7) which spring up or fold open when the hood (5) breaks off. 10

Claims (6)

Expectations 1. Training projectile with a thin-walled, ogive-shaped hood which is placed on a projectile body, characterized in that that a support part (7) made of plastic is arranged in a free space (6) between the projectile body (1) and the hood (5), that the support part (7) is inserted with a pin (8) into an axial bore (A) of the projectile body (d) and that the support part (7) has star-shaped webs (9) whose outer edges (10) rest against the hood (5). 2. Training projectile according to claim 1, characterized in that the support I (7) rests with the rear edges (di) of the webs (9) in the vicinity of the pin (8) on the projectile body (1). 3. Training projectile according to claim 1 or 2, characterized in that that the front side of the projectile body (1) is designed in such a way that its air resistance is high in comparison to the projectile. 4. Training projectile according to claim 3, 30 characterized in that that the projectile body (1) has steps (3) inside the hood (5). 5. Training projectile according to one of the preceding claims, characterized in that that surface parts are provided on the projectile body (1) or on the support part (7) which, after breaking off the hood (5), i_U &igr; ti» Tue &Ggr; Stan u Vc Py &Ggr;&Ogr;&ugr;&euro;&Ggr;&Ggr;&iacgr; . 6. Training projectile according to one of the preceding claims, characterized in that the outer edges (0) of the webs (9) rest against the hood (5) over their entire length and support it axially and radially. 10 15 20 25 30 35