EP0389845B1 - Sabot for spin-stabilized sub-calibre projectiles - Google Patents
Sabot for spin-stabilized sub-calibre projectiles Download PDFInfo
- Publication number
- EP0389845B1 EP0389845B1 EP90104487A EP90104487A EP0389845B1 EP 0389845 B1 EP0389845 B1 EP 0389845B1 EP 90104487 A EP90104487 A EP 90104487A EP 90104487 A EP90104487 A EP 90104487A EP 0389845 B1 EP0389845 B1 EP 0389845B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pot
- propelling
- projectile
- sabot
- spin
- 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.)
- Expired - Lifetime
Links
- 239000004429 Calibre Substances 0.000 title 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000004411 aluminium Substances 0.000 claims 1
- 101100298222 Caenorhabditis elegans pot-1 gene Proteins 0.000 description 4
- 230000003111 delayed effect Effects 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
- F42B14/00—Projectiles or missiles characterised by arrangements for guiding or sealing them inside barrels, or for lubricating or cleaning barrels
- F42B14/06—Sub-calibre projectiles having sabots; Sabots therefor
- F42B14/064—Sabots enclosing the rear end of a kinetic energy projectile, i.e. having a closed disk shaped obturator base and petals extending forward from said base
Definitions
- the invention relates to a drive pot for spin-stabilized sub-caliber projectiles.
- a plastic drive pot for spin-stabilized sub-caliber projectiles is known.
- the drive pot has a circumferential groove and axial slots in the area of a projectile rear in its wall enveloping the projectile, the slots projecting from the front end of the drive pot to almost the circumferential groove.
- the section of the thin-walled drive pot should still be divided into four parts in the weapon barrel because of the four slots, which laterally move away when the gun barrel emerges from the gun barrel.
- the bottom, closed part of the drive pot has a greater air resistance than the projectile after leaving the gun barrel, so that the drive pot is separated from the projectile. After detaching the floating pot remnant, it flies a larger distance directly behind the projectile. There are cases, especially when working at small distances, in which this fact affects the projectile behavior.
- a sabot for spin-stabilized lower-caliber projectiles in which a retaining ring with part of its length holds four wall sections together at the rear. These wall sections keep a projectile in a central position to the sabot. After the sabot and the projectile have been fired, the retaining ring tears after exiting the weapon barrel due to the centrifugal forces of the wall sections. Since the locking ring is not affected by the fields of the drawn weapon barrel when it is fired, it can happen that, due to the relatively high tensile strength of the locking ring, the sabot detachment occurs very late and thereby adversely affects the accuracy of the projectile.
- the invention is based on the object of proposing a drive pot for spin-stabilized lower-caliber projectiles which separates from the projectile immediately after the weapon barrel muzzle.
- the fields of the drawn weapon barrel advantageously cut the necessary predetermined breaking points into the guide band.
- This ensures that the drive pot including the pot sleeve is torn open several times immediately after the pipe mouth due to the centrifugal force of the segments of the drive pot.
- the segments can consist of steel, aluminum, titanium or plastic.
- the guide band has predetermined breaking points exactly above the dividing joints of the drive pot. Irrespective of this, a trouble-free detachment of the segments of the drive pot is ensured in the case of offset predetermined breaking points with respect to the dividing joints. Further advantages lie in the simple and inexpensive manufacture of the drive pot with the guide belt.
- the drive pot advantageously consists of three segments.
- a drive pot 1 encloses a projectile tail 2.
- the drive pot 1 has a guide band 4 with a rear cone 5 in a groove 3.
- a pot sleeve 6 made of aluminum is crimped or glued into the cone 5.
- the drive pot 1 consists of three segments 7. Between these there are dividing joints 8.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Portable Nailing Machines And Staplers (AREA)
Description
Die Erfindung bezieht sich auf einen Treibtopf für drallstabilisierte Unterkalibergeschosse.The invention relates to a drive pot for spin-stabilized sub-caliber projectiles.
Aus der US-PS 3,311,061 ist ein Treibtopf aus Kunststoff für drallstabilisierte Unterkalibergeschosse bekannt. Der Treibtopf weist im Bereich eines Geschoßhecks in seiner, das Geschoß einhüllenden Wand eine Umfangsnut und axiale Schlitze auf, wobei die Schlitze vom vorderen Ende des Treibtopfes bis nahezu der Umfangsnut ragen. Beim Abschuß des Treibtopfes soll noch im Waffenrohr der Abschnitt des dünnwandigen Treibtopfes aufgrund der vier Schlitze in vier Teile geteilt werden, die sich aufgrund der Drallwirkung beim Austritt aus dem Waffenrohr seitlich entfernen. Der bodenseitige, geschlossene Teil des Treibtopfes weist nach verlassen des Waffenrohres einen größeren Luftwiderstand auf als das Geschoß, so daß der Treibtopf vom Geschoß getrennt wird. Nach dem Ablösen des Treibtopfrestes fliegt dieser eine größere Strecke direkt hinter dem Projektil her. Es gibt Einsatzfälle, insbesondere bei Einsätzen auf kleine Entfernungen, in denen dieser Umstand das Projektilverhalten beeinträchtigt.From US-PS 3,311,061 a plastic drive pot for spin-stabilized sub-caliber projectiles is known. The drive pot has a circumferential groove and axial slots in the area of a projectile rear in its wall enveloping the projectile, the slots projecting from the front end of the drive pot to almost the circumferential groove. When the drive pot is fired, the section of the thin-walled drive pot should still be divided into four parts in the weapon barrel because of the four slots, which laterally move away when the gun barrel emerges from the gun barrel. The bottom, closed part of the drive pot has a greater air resistance than the projectile after leaving the gun barrel, so that the drive pot is separated from the projectile. After detaching the floating pot remnant, it flies a larger distance directly behind the projectile. There are cases, especially when working at small distances, in which this fact affects the projectile behavior.
Hierzu zählen folgende Möglichkeiten:
- 1. Funktionen im oder am Fluggeschoß, die zu starker Verzögerung führen; der Treibspiegel trifft auf das verzögerte Fluggeschoß und führt zu Schäden.
- 2. Tritt das Fluggeschoß nach der Abtrennung des Treibspiegels in ein Medium höherer Dichte, so kann das verzögerte Fluggeschoß vom Treibspiegel getroffen und in seiner "Flugbahn" gestört werden.
- 1. Functions on or on the flight floor that lead to severe deceleration; the sabot hits the delayed missile and causes damage.
- 2. If the missile enters a medium of higher density after the sabot has been separated, the delayed missile can be hit by the sabot and its "trajectory" can be disturbed.
Weiterhin ist aus der DE-05 20 41 877 ein Treibspiegel für drallstabilisierte Unterkalibergeschosse bekannt, bei dem ein Sicherungsring mit einem Teil seiner Länge vier Wandabschnitte heckseitig zusammenhält. Diese Wandabschnitte halten ein Projektil in zentrischer Lage zum Treibspiegel. Nach dem Abschuß des Treibspiegels und des Projektils reißt der Sicherungsring nach dem Austritt aus dem Waffenrohr aufgrund der Fliehkräfte der Wandabschnitte. Nachdem der Sicherungsring beim Abschuß von den Feldern des gezogenen Waffenrohres nicht beeinflußt wird, kann es vorkommen, daß aufgrund relativ hoher Zugfestigkeit des Sicherungsrings die Ablösung des Treibspiegels sehr spät erfolgt und dadurch die Zielgenauigkeit des Projektils nachteilig beeinflußt.Furthermore, from DE-05 20 41 877 a sabot for spin-stabilized lower-caliber projectiles is known, in which a retaining ring with part of its length holds four wall sections together at the rear. These wall sections keep a projectile in a central position to the sabot. After the sabot and the projectile have been fired, the retaining ring tears after exiting the weapon barrel due to the centrifugal forces of the wall sections. Since the locking ring is not affected by the fields of the drawn weapon barrel when it is fired, it can happen that, due to the relatively high tensile strength of the locking ring, the sabot detachment occurs very late and thereby adversely affects the accuracy of the projectile.
Der Erfindung liegt die Aufgabe zugrunde, einen Treibtopf für drallstabilisierte Unterkalibergeschosse vorzuschlagen, der unmittelbar nach der Waffenrohrmündung sich vom Geschoß trennt.The invention is based on the object of proposing a drive pot for spin-stabilized lower-caliber projectiles which separates from the projectile immediately after the weapon barrel muzzle.
Die Erfindung löst diese Aufgabe entsprechend den kennzeichnenden Merkmalen des Anspruches 1.The invention solves this problem in accordance with the characterizing features of
Vorteilhafte Weiterbildungen in der Erfindung sind den Unteransprüchen zu entnehmen.Advantageous developments in the invention can be found in the subclaims.
Vorteilhaft schneiden beim Abschuß die Felder des gezogenen Waffenrohres die notwendigen Sollbruchstellen in das Führungsband. Damit ist sichergestellt, daß der Treibtopf einschließlich der Topfhülse unmittelbar nach der Rohrmündung aufgrund der Fliehkraftwirkung der Segmente des Treibtopfes mehrfach aufgerissen wird. Die Segmente können dabei aus Stahl, Aluminium, Titan oder Kunststoff bestehen. Im Idealfall weist das Führungsband nach dem Durchgang durch das Waffenrohr genau über den Teilungsfugen des Treibtopfes Sollbruchstellen auf. Auch unabhängig davon ist bei versetzten Sollbruchstellen in bezug auf die Teilungsfugen ein störungsfreies Ablösen der Segmente des Treibtopfes gewährleistet. Weitere Vorteile liegen in der einfachen und kostengünstigen Herstellung des Treibtopfes mit dem Führungsband begründet.When firing, the fields of the drawn weapon barrel advantageously cut the necessary predetermined breaking points into the guide band. This ensures that the drive pot including the pot sleeve is torn open several times immediately after the pipe mouth due to the centrifugal force of the segments of the drive pot. The segments can consist of steel, aluminum, titanium or plastic. Ideally, after passing through the weapon barrel, the guide band has predetermined breaking points exactly above the dividing joints of the drive pot. Irrespective of this, a trouble-free detachment of the segments of the drive pot is ensured in the case of offset predetermined breaking points with respect to the dividing joints. Further advantages lie in the simple and inexpensive manufacture of the drive pot with the guide belt.
Nach dem Anspruch 2 besteht der Treibtopf vorteilhaft aus drei Segmenten.According to claim 2, the drive pot advantageously consists of three segments.
Nach dem Anspruch 3 liegt ein vollständiger, heckseitig gasdichter Abschluß des Treibtopfes vor. Daneben ist die gasdichte Verbindung mit dem Führungsband in einfacher Weise herstellbar.According to
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt.An embodiment of the invention is shown in the drawing.
Es zeigt:
- Fig. 1
- Einen Treibtopf im Teilschnitt
- Fig. 2
- Den Treibtopf nach Fig. 1 gemäß der Schnittlinie II/II
- Fig. 1
- A partially cut drive pot
- Fig. 2
- 1 according to section line II / II
Ein Treibtopf 1 umschließt ein Projektilheck 2. Der Treibtopf 1 weist in einer Nut 3 ein Führungsband 4 mit einem heckseitigen Konus 5 auf.
Eine Topfhülse 6 aus Aluminium ist in den Konus 5 eingebördelt oder aufgeklebt. Der Treibtopf 1 besteht aus drei Segmenten 7. Zwischen diesen sind Teilungsfugen 8.A
A pot sleeve 6 made of aluminum is crimped or glued into the
Beim Abschuß schneiden die Felder eines nicht gezeichneten, gezogenen Waffenrohres die notwendigen Sollbruchstellen, siehe die strichpunktiert gezeichneten Linien 10, in das Führungsband 4. Der Treibtopf 1 zerfällt unmittelbar nach der Rohrmündung des Waffenrohres und stört das Verhalten des Projektils nicht weiter.When firing, the fields of a not drawn, drawn weapon barrel cut the necessary predetermined breaking points, see the dash-dotted lines 10, into the
Claims (3)
- A propelling pot (1) for spin-stablised subcalibre projectiles having a propelling pot (1) which in the region of a projectile (2) has a circumferential groove (3) and axial slots (8) in its wall which encases the projectile, in which respect the slots (8) project from the front end of the propelling pot (1) as far as close to the circumferential groove (3), characterised in that a separate driving band (4) is arranged in the circumferential groove (3), the propelling pot (1) consists of at least two segments (7), held by the driving band (4), with continuous dividing gaps (8) laying therebetween and the gas-pressure-sided portion of the propelling pot (1) carries a thin-walled pot casing (6) made of aluminium.
- A propelling pot according to claim 1, characterised in that the propelling pot (1) consists of three segments (7).
- A propelling pot according to claim 1, characterised in that the pot casing (6) is connected in a form-locking manner to the driving band (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3909836 | 1989-03-25 | ||
| DE3909836A DE3909836A1 (en) | 1989-03-25 | 1989-03-25 | DRIVING POT FOR SWIRL-STABILIZED SUB-CALIBAR FLOORS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0389845A1 EP0389845A1 (en) | 1990-10-03 |
| EP0389845B1 true EP0389845B1 (en) | 1993-06-09 |
Family
ID=6377187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90104487A Expired - Lifetime EP0389845B1 (en) | 1989-03-25 | 1990-03-09 | Sabot for spin-stabilized sub-calibre projectiles |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0389845B1 (en) |
| DE (2) | DE3909836A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2708097B1 (en) * | 1993-07-22 | 1995-09-22 | Giat Ind Sa | Sealing belt for medium or large caliber projectiles. |
| DE4433628A1 (en) * | 1994-09-21 | 1996-03-28 | Rheinmetall Ind Gmbh | Disposable sabot for a sub-caliber projectile |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3311061A (en) * | 1964-06-25 | 1967-03-28 | Ehoy C Roehrdanz | Sabot |
| US3762332A (en) * | 1971-07-08 | 1973-10-02 | L Witherspoon | Projectile sabot |
| US4296687A (en) * | 1979-07-16 | 1981-10-27 | The United States Of America As Represented By The Secretary Of The Army | Segmented sabot projectile |
| DE3033041C2 (en) * | 1980-09-03 | 1986-04-10 | L'Etat Français représenté par le Délégué Général pour l'Armement, Paris | Metal and plastic sabot |
| DE3261947D1 (en) * | 1981-08-13 | 1985-02-28 | Oerlikon Buehrle Ag | Connection between the casing and the rear part of a sabot for a projectile |
| FR2521717B1 (en) * | 1982-02-16 | 1986-11-21 | France Etat | CINETIC ENERGY PROJECTILE AND LAUNCHING METHOD THEREOF |
| DE3507408A1 (en) * | 1985-03-02 | 1986-09-04 | Diehl GmbH & Co, 8500 Nürnberg | Spinning projectile |
-
1989
- 1989-03-25 DE DE3909836A patent/DE3909836A1/en active Granted
-
1990
- 1990-03-09 DE DE9090104487T patent/DE59001650D1/en not_active Expired - Fee Related
- 1990-03-09 EP EP90104487A patent/EP0389845B1/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3909836C2 (en) | 1992-08-27 |
| DE3909836A1 (en) | 1990-09-27 |
| EP0389845A1 (en) | 1990-10-03 |
| DE59001650D1 (en) | 1993-07-15 |
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