EP0346779A1 - Projectile for practice - Google Patents

Projectile for practice Download PDF

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Publication number
EP0346779A1
EP0346779A1 EP89110510A EP89110510A EP0346779A1 EP 0346779 A1 EP0346779 A1 EP 0346779A1 EP 89110510 A EP89110510 A EP 89110510A EP 89110510 A EP89110510 A EP 89110510A EP 0346779 A1 EP0346779 A1 EP 0346779A1
Authority
EP
European Patent Office
Prior art keywords
hood
projectile
projectile body
support part
webs
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP89110510A
Other languages
German (de)
French (fr)
Other versions
EP0346779B1 (en
Inventor
Gmbh Co Diehl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Diehl Verwaltungs Stiftung
Original Assignee
Diehl GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Diehl GmbH and Co filed Critical Diehl GmbH and Co
Publication of EP0346779A1 publication Critical patent/EP0346779A1/en
Application granted granted Critical
Publication of EP0346779B1 publication Critical patent/EP0346779B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/12—Projectiles or missiles
    • F42B8/14—Projectiles or missiles disintegrating in flight or upon impact

Definitions

  • the invention relates to a training projectile with a thin-walled, ogive-shaped hood which is placed on a projectile body.
  • the object of the invention is to propose a training projectile, the hood of which on the one hand withstands the loads occurring during the feeding and the firing and on the other hand the bounce range is reduced.
  • the above object is achieved in a practice projectile of the type mentioned in that a plastic support part is arranged in the space between the projectile body and the hood, that the support part is inserted with a pin into an axial bore of the projectile body and that the support part has webs arranged in a star shape, the outer edges of which rest against the hood.
  • the support member 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 angles of incidence and low impingement speeds, the support part deforms so that the hood breaks off. This increases the flow resistance of the parts so that the bounce range is reduced.
  • Another advantage of this practice floor is that a particularly thin-walled, inexpensive hood can be used, since its stability is increased by the support member.
  • a practice projectile has a 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, viewed in isolation, has a high air resistance.
  • the projectile body (1) is provided with an axial bore (4).
  • the projectile body (1) On the projectile body (1) is a comparative screwed thin-walled ogiven-shaped hood (5), which consists for example of aluminum.
  • the projectile body (1) forms together with the hood (5) a projectile whose ballistic values correspond to those of sharp projectiles.
  • a support part (7) is arranged in this.
  • 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 bore (4).
  • the support part (7) is provided with four webs (9) which are arranged in a star shape (see FIG. 3). Only three webs (9) or more than four webs (9) can also be provided.
  • the webs (9) have outer edges (10), on the course of which the inner shape of the hood (5) is adapted.
  • the webs (9) rest with rear edges (11) in the vicinity of the pin (8) on the front of the projectile body (1).
  • the support part (7) is held radially by the pin (8) on the projectile body (1). It is supported axially on the rear edges (11) of its webs (9). The outer edges (10) support the hood (5) both radially and axially.
  • the supporting part (7) takes on axial and radial forces acting on the hood (5).
  • the support part (7) also dampens vibrations of the hood (5).
  • the webs (9) are deformed due to the elasticity of the plastic and its shape, so that the hood (5) breaks off from the projectile body (1).
  • the then effective air resistance of the projectile body (1) is so high that the projectile body (1) flies only a comparatively small distance.
  • surface parts can be arranged in the area of its steps or on the support part (7), which open or open when the hood (5) is broken off.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

In a projectile for practice, a thin-walled ogive-shaped hood (5) is placed onto a projectile body (1). The hood (5) is on the one hand intended to withstand the forces occuring during firing. On the other hand, the range of the projectile in the event of target rebounds will be reduced. For this, there is arranged in a free space (6) between the projectile body (1) and the hood (5) a plastic supporting part (7) which is inserted by means of a pin (8) into an axial bore (4) of the projectile body (1). Webs (9) of the supporting part (7) which are arranged in the form of a star bear with their outer edges (10) against the hood (5). <IMAGE>

Description

Die Erfindung betrifft ein Übungsgeschoß mit einer dünnwandingen, ogivenförmigen Haube, die auf einen Geschoßkörper aufgesetzt ist.The invention relates to a training projectile with a thin-walled, ogive-shaped hood which is placed on a projectile body.

Bei bekannten Übungsgeschossen, die in flachen Winkeln auf Sandboden auftreffen, besteht die Gefahr, daß sie praktisch unbeschädigt vom Sandboden abprallen und dann über den Sicherheitsbereich des Schießplatzes hinausfliegen.In known practice projectiles, which strike the sand floor at flat angles, there is a risk that they will bounce off the sand floor practically undamaged and then fly beyond the safety area of the shooting range.

Die Haube bzw. deren Anordnung am Geschoßkörper so schwach auszubilden, daß sie auch bei einem flachen Zielaufprall zerstört wird, verbietet sich, da sie dann den bei der Zuführung zum Waffenrohr und beim Abschuß auftretenden Belastungen nicht mehr standhält.It is forbidden to design the hood or its arrangement on the projectile body so weakly that it is destroyed even in the event of a flat target impact, since it then no longer withstands the loads that occur when it is fed to the barrel and when it is fired.

Aufgabe der Erfindung ist es, ein Übungsgeschoß vorzuschlagen, dessen Haube einerseits den bei der Zuführung und beim Abschuß auftretenden Belastungen standhält und dessen Abprallreichweite andererseits vermindert ist.The object of the invention is to propose a training projectile, the hood of which on the one hand withstands the loads occurring during the feeding and the firing and on the other hand the bounce range is reduced.

Erfindungsgemäß ist obige Aufgabe bei einem Übungsgeschoß der eingangs genannten Art dadurch gelöst, daß in dem Freiraum zwischen dem Geschoßkörper und der Haube ein Stützteil aus Kunststoff angeordnet ist, daß das Stützteil mit einem Zapfen in eine axiale Bohrung des Geschoßkörpers eingesteckt ist und daß das Stützteil sternförmig angeordnete Stege aufweist, deren Außenränder an der Haube anliegen.According to the invention the above object is achieved in a practice projectile of the type mentioned in that a plastic support part is arranged in the space between the projectile body and the hood, that the support part is inserted with a pin into an axial bore of the projectile body and that the support part has webs arranged in a star shape, the outer edges of which rest against the hood.

Das Stützteil stabilisiert die dünnwandige Haube axial und radial so, daß sie den bei der Zuführung und beim Abschuß auftretenden Kräften standhält. Andererseits verformt sich auch bei flachen Auftreffwinkeln und geringen Auftreffgeschwindigkeiten das Stützteil so, daß die Haube abbricht. Dadurch erhöht sich der Strömungswiderstand der Teile, so daß die Abprallreichweite vermindert ist.The support member 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 angles of incidence and low impingement speeds, the support part deforms so that the hood breaks off. This increases the flow resistance of the parts so that the bounce range is reduced.

Ein weiterer Vorteil dieses Übungsgeschosses besteht auch darin, daß eine besonders dünnwandige, billige Haube verwendet werden kann, da deren an sich geringe Stabilität durch das Stützteil erhöht ist.Another advantage of this practice floor is that a particularly thin-walled, inexpensive hood can be used, since its stability is increased by the support member.

Vorteilhafte Ausgestaltungen der Erfindung ergeben sich aus den Unteransprüchen und der folgenden Beschreibung eines Ausführungsbeispiels. In der Zeichnung zeigen:

  • Figur 1 ein Übungsgeschoß im Schnitt,
  • Figur 2 eine Ansicht des Stützteils entsprechend Figur 1 und
  • Figur 3 eine Ansicht des Stützteils in Richtung des Pfeiles III nach Figur 2.
Advantageous refinements of the invention result from the subclaims and the following description of an exemplary embodiment. The drawing shows:
  • FIG. 1 shows an average practice floor,
  • Figure 2 is a view of the support member corresponding to Figure 1 and
  • Figure 3 is a view of the support member in the direction of arrow III of Figure 2.

Ein Übungsgeschoß weist einen Geschoßkörper(1) aus Stahl auf, der mit einem Führungsband(2) versehen ist. Der Geschoßkörper(1) ist frontseitig mit Stufen(3) versehen und weist für sich betrachtet einen hohen Luftwiderstand auf. Der Geschoßkörper(1) ist mit einer axialen Bohrung(4) versehen.A practice projectile has a 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, viewed in isolation, has a high air resistance. The projectile body (1) is provided with an axial bore (4).

Auf den Geschoßkörper(1) ist eine vergleichsweise dünnwandige, ogivenförmige Haube(5) aufgeschraubt, welche beispielsweise aus Aluminium besteht. Der Geschoßkörper(1) bildet zusammen mit der Haube(5) ein Geschoß, dessen ballistische Werte denen von scharfen Geschossen entsprechen. Zwischen der Haube(5) und der Frontseite des Geschoßkörpers(1) besteht ein Freiraum(6). In diesem ist ein Stützteil(7) angeordnet. Das Stützteil(7) besteht aus Kunststoff, wie beispielsweise Polyäthylen, Polyurethan oder Polyamid.On the projectile body (1) is a comparative screwed thin-walled ogiven-shaped hood (5), which consists for example of aluminum. The projectile body (1) forms together with the hood (5) a projectile whose ballistic values correspond to those of sharp 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. The support part (7) is made of plastic, such as polyethylene, polyurethane or polyamide.

Das Stützteil(7) weist einen Zapfen(8) auf, welcher in die Bohrung(4) eingesteckt ist. Das Stützteil(7) ist mit vier Stegen(9) versehen, die sternförmig (vgl. Figur 3) angeordnet sind. Es können auch nur drei Stege(9) oder mehr als vier Stege(9) vorgesehen sein.The support part (7) has a pin (8) which is inserted into the bore (4). The support part (7) is provided with four webs (9) which are arranged in a star shape (see FIG. 3). Only three webs (9) or more than four webs (9) can also be provided.

Die Stege(9) weisen Außenränder(10), auf deren Verlauf der Innengestalt der Haube(5) angepaßt ist. Die Stege(9) liegen mit heckseitigen Rändern(11) in der Umgebung des Zapfens(8) an der Frontseite des Geschoßkörpers(1) an.The webs (9) have outer edges (10), on the course of which the inner shape of the hood (5) is adapted. The webs (9) rest with rear edges (11) in the vicinity of the pin (8) on the front of the projectile body (1).

Die Funktionsweise der beschriebenen Einrichtung ist etwa folgende:The functioning of the described device is approximately as follows:

Das Stützteil(7) ist durch den Zapfen(8) am Geschoßkörper(1) radial gehalten. Es stützt sich an diesem axial über die heckseitigen Ränder(11) seiner Stege(9) ab. Die Außenränder(10) stützen die Haube(5) sowohl radial als auch axial.The support part (7) is held radially by the pin (8) on the projectile body (1). It is supported axially on the rear edges (11) of its webs (9). The outer edges (10) support the hood (5) both radially and axially.

Bei der Zuführung des Geschosses zum Waffenrohr und beim Abschuß, sowie im Flug übernimmt das Stützteil(7) auf die Haube(5) wirkende axiale und radiale Kräfte. Das Stützteil(7) dämpft auch Schwingungen der Haube(5).When the projectile is fed to the weapon barrel and when it is fired, as well as in flight, the supporting part (7) takes on axial and radial forces acting on the hood (5). The support part (7) also dampens vibrations of the hood (5).

Beim Aufprall, insbesondere auch beim flachen Zielaufprall werden die Stege(9) aufgrund der Elastizität des Kunststoffs und deren Formgestaltung verformt, so daß die Haube(5) vom Geschoßkörper(1) abbricht. Der dann wirksame Luftwiderstand des Geschoßkörpers(1) ist so hoch, daß der Geschoßkörper(1) nur noch eine vergleichsweise kleine Strecke weiterfliegt.In the event of an impact, in particular also in the case of a flat target impact, the webs (9) are deformed due to the elasticity of the plastic and its shape, so that the hood (5) breaks off from the projectile body (1). The then effective air resistance of the projectile body (1) is so high that the projectile body (1) flies only a comparatively small distance.

Zur weiteren Vergrößerung des Luftwiderstands des Geschoßkörpers(1) können im Bereich von dessen Stufen oder am Stützteil(7) Flächenteile angeordnet sein, die beim Abbrechen der Haube(5) aufspringen oder aufklappen.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 open or open when the hood (5) is broken off.

Claims (6)

1. Übungsgeschoß mit einer dünnwandigen, ogivenförmigen Haube, die auf einen Geschoßkörper aufgesetzt ist,
dadurch gekennzeichnet,
daß in einem Freiraum(6) zwischen dem Geschoßkörper(1) und der Haube(5) ein Stützteil(7) aus Kunststoff angeordnet ist, daß das Stützteil(7) mit einem Zapfen(8) in eine axiale Bohrung(4) des Geschoßkörpers(1) eingesteckt ist und daß das Stützteil(7) sternförmig angeordnete Stege(9) aufweist, deren Außenränder(10) an der Haube(5) anliegen.1. training floor with a thin-walled, ogive-shaped hood, which is placed on a floor body,
characterized,
that in a free space (6) between the projectile body (1) and the hood (5) a support part (7) made of plastic is arranged, that the support part (7) with a pin (8) in an axial bore (4) of the projectile body (1) is inserted and that the supporting part (7) has webs (9) arranged in a star shape, the outer edges (10) of which abut the hood (5). 2. Übungsgeschoß nach Anspruch 1,
dadurch gekennzeichnet,
daß das Stützteil(7) mit heckseitigen Rändern(11) der Stege(9) in der Umgebung des Zapfens(8) am Geschoßkörper(1) anliegt.2. Practice floor according to claim 1,
characterized,
that the support part (7) with rear edges (11) of the webs (9) in the vicinity of the pin (8) on the projectile body (1). 3. Übungsgeschoß nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
daß die Frontseite des Geschoßkörpers(1) so gestaltet ist, daß sein Luftwiderstand im Vergleich zum Geschoß hoch ist.3. Practice floor according to claim 1 or 2,
characterized,
that the front of the projectile body (1) is designed so that its air resistance is high compared to the projectile. 4. Übungsgeschoß nach Anspruch 3,
dadurch gekennzeichnet,
daß der Geschoßkörper(1) innerhalb der Haube(5) Stufen(3) aufweist.4. training floor according to claim 3,
characterized,
that the projectile body (1) within the hood (5) has steps (3). 5. Übungsgeschoß nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß am Geschoßkörper(1) oder am Stützteil(7) Flächenteile vorgesehen sind, die nach dem Abbrechen der Haube(5) den Luftwiderstand vergrößern.5. Practice floor according to one of the preceding claims,
characterized,
that on the projectile body (1) or on the support part (7) surface parts are provided which increase the air resistance after breaking off the hood (5). 6. Übungsgeschoß nach einem der vorhergehenden Ansprüche,
dadurch gekennzeichnet,
daß die Außenränder(10) der Stege(9) über ihre gesamte Länge an der Haube(5) anliegen und diese axial und radial stützen.6. Practice floor according to one of the preceding claims,
characterized,
that the outer edges (10) of the webs (9) rest over their entire length on the hood (5) and support it axially and radially.
EP89110510A 1988-06-14 1989-06-10 Projectile for practice Expired - Lifetime EP0346779B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8807701U 1988-06-14
DE8807701U DE8807701U1 (en) 1988-06-14 1988-06-14 Practice bullet

Publications (2)

Publication Number Publication Date
EP0346779A1 true EP0346779A1 (en) 1989-12-20
EP0346779B1 EP0346779B1 (en) 1992-10-28

Family

ID=6825003

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89110510A Expired - Lifetime EP0346779B1 (en) 1988-06-14 1989-06-10 Projectile for practice

Country Status (2)

Country Link
EP (1) EP0346779B1 (en)
DE (2) DE8807701U1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5116224A (en) * 1990-06-25 1992-05-26 Kelsey Jr Charles C Devel small arms bullet

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE662881A (en) * 1964-04-23 1965-08-17
FR2114879A5 (en) * 1970-12-08 1972-06-30 Oerlikon Buehrle Ag
DE2639884A1 (en) * 1976-09-04 1978-03-09 Dynamit Nobel Ag BULLET FOR PRACTICE AMMUNITION
FR2364427A1 (en) * 1976-09-11 1978-04-07 Rheinmetall Gmbh Practice projectile with guide ring - is pressed for holding attachments and for forming guide ring
DE3044098A1 (en) * 1979-11-29 1981-09-17 Deutsche Semperit GmbH, 8000 München EXERCISE SHELL TO BE SHOOTING FROM GUNS
EP0036232A1 (en) * 1980-03-18 1981-09-23 FABRIQUE NATIONALE HERSTAL en abrégé FN Société Anonyme Training projectile
US4465464A (en) * 1983-02-03 1984-08-14 Schoenberg George R Ballistic missile structure simulator
US4589342A (en) * 1985-02-28 1986-05-20 The United States Of America As Represented By The Secretary Of The Navy Rocket-powered training missile with impact motor splitting device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE662881A (en) * 1964-04-23 1965-08-17
FR2114879A5 (en) * 1970-12-08 1972-06-30 Oerlikon Buehrle Ag
DE2639884A1 (en) * 1976-09-04 1978-03-09 Dynamit Nobel Ag BULLET FOR PRACTICE AMMUNITION
FR2364427A1 (en) * 1976-09-11 1978-04-07 Rheinmetall Gmbh Practice projectile with guide ring - is pressed for holding attachments and for forming guide ring
DE3044098A1 (en) * 1979-11-29 1981-09-17 Deutsche Semperit GmbH, 8000 München EXERCISE SHELL TO BE SHOOTING FROM GUNS
EP0036232A1 (en) * 1980-03-18 1981-09-23 FABRIQUE NATIONALE HERSTAL en abrégé FN Société Anonyme Training projectile
US4465464A (en) * 1983-02-03 1984-08-14 Schoenberg George R Ballistic missile structure simulator
US4589342A (en) * 1985-02-28 1986-05-20 The United States Of America As Represented By The Secretary Of The Navy Rocket-powered training missile with impact motor splitting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5116224A (en) * 1990-06-25 1992-05-26 Kelsey Jr Charles C Devel small arms bullet

Also Published As

Publication number Publication date
DE58902540D1 (en) 1992-12-03
EP0346779B1 (en) 1992-10-28
DE8807701U1 (en) 1989-10-12

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