EP1475600B1 - Discarding sabot - Google Patents

Discarding sabot Download PDF

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Publication number
EP1475600B1
EP1475600B1 EP04004907A EP04004907A EP1475600B1 EP 1475600 B1 EP1475600 B1 EP 1475600B1 EP 04004907 A EP04004907 A EP 04004907A EP 04004907 A EP04004907 A EP 04004907A EP 1475600 B1 EP1475600 B1 EP 1475600B1
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EP
European Patent Office
Prior art keywords
sabot
sealing band
segment
sealing
recess
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
Application number
EP04004907A
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German (de)
French (fr)
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EP1475600A1 (en
Inventor
Thomas Heitmann
Martin Berg
Michael Dr. Imdahl
Stefan Keil
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.)
Rheinmetall Waffe Munition GmbH
Original Assignee
Rheinmetall Waffe Munition GmbH
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 Rheinmetall Waffe Munition GmbH filed Critical Rheinmetall Waffe Munition GmbH
Publication of EP1475600A1 publication Critical patent/EP1475600A1/en
Application granted granted Critical
Publication of EP1475600B1 publication Critical patent/EP1475600B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F42B14/061—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile
    • 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
    • F42B14/067—Sealing aspects in sabots, e.g. sealing between individual segments of the sabots or sealing between the outer surface of the sabot and the inner surface of the barrel

Definitions

  • the invention relates to a disposable sabot for a subcaliber projectile, which consists of several, circumferentially juxtaposed and separated by joints separating sabot segments made of metal and which includes a pressure flange to which a frustoconical sabot area adjoins the rear side.
  • Such sabots are for example from the EP 0 703 428 B1 or the DE 199 29 915 A1 are known and used especially in large-caliber ammunition, as they are fired in particular from armored weapons.
  • a continuous, made of plastic sealing tape which is either sprayed onto the pressure flange or, as a whole component, is pressed into a groove-shaped recess of the pressure flange.
  • a disadvantage of the known sabots that they are relatively heavy, because the sealing strip is supported almost vollkalibrig of the pressure flange of the respective sabot.
  • the sealing tapes are relatively short in the known sabots, so that no long and deep erosion damage in the barrel can be compensated with these bands.
  • the sealing tapes must be provided with additional cuts (predetermined breaking points) in order to support the separation of the sabot segments after the projectile has left the weapon barrel.
  • a ring member with a front side inwardly projecting locking lug can be used as a sealing strip, which engages in a corresponding groove-shaped recess of the pressure flange.
  • the locking nose is adjoined by a conical inner surface over which the sealing strip is supported on the frustoconical sabot area. This sealing tape protrudes on the rear over the pressure flange. Further details on the purpose of this embodiment of the sealing strip can not be found in this document.
  • the invention has for its object to provide a sabot of the type mentioned, in which the detachment of the sabot segments of the projectile through the sealing strip is not or not substantially hindered.
  • the invention is based essentially on the idea that the sealing strip is composed of a plurality of circumferentially juxtaposed and separated by joints sealing strip segments, wherein each one sealing band segment assigned to a sabot segment and connected to this form-fitting and / or non-positively.
  • the sealing tape is therefore not sprayed as a whole component conventionally sprayed on the sabot or pressed as a whole component on the pressure flange of the sabot, but each individual sabot segment is connected to a separate sealing strip part.
  • the connection of the sealing band segment and the corresponding sabot segment may be e.g. by gluing, welding, a positive connection (e.g., dovetail connection) or a frictional connection (e.g., by an axial interference fit).
  • the rear-side region of the sealing strip has a recess which is open on the rear side, such that a first sealing lip bearing against the sabot and an outwardly directed second sealing lip are formed.
  • the propellant charge gases push the second sealing lip against the inner wall of the weapon barrel, which leads to an improvement of the seal against otherwise laterally past the sabot propellant gases.
  • This sealing movement of the second sealing lip can still be assisted by a bending groove arranged at the level of the bottom of the recess on the outside of the second sealing lip.
  • Fig. 1 denoted by 1 is e.g. from a tank gun with smooth weapon tube shootable sub-caliber projectile referred. It essentially comprises a penetrator 2 with guide vanes 3 arranged on the rear side and a sabot 4 surrounding the penetrator 2, on the rear side of which a sleeve cover 5 for connecting the projectile 1 to a cartridge case (not shown) is fastened.
  • the sabot 4 made of aluminum has (not shown) for supporting in the gun barrel two guide flanges 6, 7, wherein the rear-side guide flange 7, which is also referred to below as a pressure flange, a frustoconical sabot area 8 is connected.
  • the sabot 4 is composed of three, in the circumferential direction side by side arranged sabot segments 9 together.
  • the sabot segments 9 are separated from one another by separating joints 11 extending in the direction of the longitudinal axis 10 of the projectile 1.
  • a plastic sealing tape 12 e.g. fastened by means of an adhesive connection, which is composed of three circumferentially adjacent and separated by joints 13 sealing tape segments 14 composed. Each of these sealing band segments 14 is fastened on one of the three sabot segments 9 assigned to it.
  • the three sealing strip segments 14 together form a ring element with a detent lug 15 projecting inwards on the inside, which engages in a corresponding groove-shaped recess 16 of the pressure flange 7, and a truncated cone-shaped inner surface 17 adjoining the detent lug 15 on the rear side, over which the sealing strip 12 adjoins frusto-conical sabot area 8 is supported.
  • the rear area of both the sabot 4 and the sealing strip 12 is provided with a vulcanization layer 18 which holds the sabot segments 9 and the sealing strip segments 14 together.
  • the rear-side region of the sealing-band segment denoted by 14 'can have a recess 19, so that two sealing lips 20, 21 are formed.
  • a bending groove 22 is additionally arranged on the outside of the second sealing lip 21.
  • the sealing strip segments 14, 14 ' can be connected by welding with the associated sabot segment 9 instead of by an adhesive bond.
  • the latching lug 15 of the respective sealing strip segment 14, 14 'and the groove-shaped recess 16 of the associated sabot segment 9 dovetail to form a positive connection or the locking lug 15 and the groove-shaped recess 16 to form a frictional connection form a press fit.

Description

Die Erfindung betrifft einen abwerfbaren Treibkäfig für ein unterkalibriges Geschoß, der aus mehreren, in Umfangsrichtung nebeneinander angeordneten und durch Trennfugen getrennten Treibkäfigsegmenten aus Metall besteht und der einen Druckflansch umfaßt, an den sich heckseitig ein kegelstumpfförmiger Treibkäfigbereich anschließt.The invention relates to a disposable sabot for a subcaliber projectile, which consists of several, circumferentially juxtaposed and separated by joints separating sabot segments made of metal and which includes a pressure flange to which a frustoconical sabot area adjoins the rear side.

Derartige Treibkäfige sind beispielsweise aus der EP 0 703 428 B1 oder der DE 199 29 915 A1 bekannt und werden vor allem bei großkalibriger Munition verwendet, wie sie insbesondere aus Panzerwaffen verschossen werden. Bei diesen bekannten Treibkäfigen befindet sich üblicherweise auf dem Außenumfang des Druckflansches ein durchgehendes, aus Kunststoff bestehendes Dichtungsband, welches entweder auf den Druckflansch aufgespritzt oder aber, als ganzes Bauteil, in eine nutenförmige Ausnehmung des Druckflansches eingepreßt wird.Such sabots are for example from the EP 0 703 428 B1 or the DE 199 29 915 A1 are known and used especially in large-caliber ammunition, as they are fired in particular from armored weapons. In these known sabot is usually located on the outer periphery of the pressure flange, a continuous, made of plastic sealing tape, which is either sprayed onto the pressure flange or, as a whole component, is pressed into a groove-shaped recess of the pressure flange.

Nachteilig ist bei den bekannten Treibkäfigen unter anderem, daß sie relativ schwer sind, weil das Dichtungsband nahezu vollkalibrig von dem Druckflansch des jeweiligen Treibkäfigs unterstützt wird. Außerdem sind bei den bekannten Treibkäfigen die Dichtungsbänder relativ kurz, so daß mit diesen Bändern keine langen und tiefen Erosionsschäden im Waffenrohr ausgeglichen werden können. Schließlich müssen die Dichtungsbänder mit zusätzlichen Einfräsungen (Sollbruchstellen) versehen werden, um die Separation der Treibkäfigsegmente, nachdem das Geschoß das Waffenrohr verlassen hat, zu unterstützen.A disadvantage of the known sabots, among other things, that they are relatively heavy, because the sealing strip is supported almost vollkalibrig of the pressure flange of the respective sabot. In addition, the sealing tapes are relatively short in the known sabots, so that no long and deep erosion damage in the barrel can be compensated with these bands. Finally, the sealing tapes must be provided with additional cuts (predetermined breaking points) in order to support the separation of the sabot segments after the projectile has left the weapon barrel.

Aus Fig.1 der DE 38 43 566 C1 läßt sich ferner entnehmen, daß als Dichtungsband ein Ringelement mit einer vorderseitig nach innen vorspringenden Rastnase verwendet werden kann, welches in eine entsprechende nutenförmige Ausnehmung des Druckflansches eingreift. Heckseitig schließt sich an die Rastnase eine kegelförmige Innenfläche an, über die sich das Dichtungsband an dem kegelstumpfförmigen Treibkäfigbereich abstützt. Dieses Dichtungsband ragt heckseitig über den Druckflansch herüber. Nähere Angaben über den Zweck dieser Ausgestaltung des Dichtungsbandes lassen sich dieser Druckschrift nicht entnehmen.From Fig.1 the DE 38 43 566 C1 can also be seen that a ring member with a front side inwardly projecting locking lug can be used as a sealing strip, which engages in a corresponding groove-shaped recess of the pressure flange. On the rear side, the locking nose is adjoined by a conical inner surface over which the sealing strip is supported on the frustoconical sabot area. This sealing tape protrudes on the rear over the pressure flange. Further details on the purpose of this embodiment of the sealing strip can not be found in this document.

Versuche der Anmelderin haben ergeben, daß bei Verwendung des aus der DE 38 43 566 C1 bekannten Dichtungsbandes dieses wesentlich breiter ausgebildet werden kann als bei den üblichen Treibkäfigen, bei denen das Dichtungsband auf dem Druckflansch aufliegt, sodaß sich die Dichtungslänge des Dichtungsbandes auf einfache Weise vergrößern läßt. Außerdem kann das Gewicht des in der Regel aus Aluminium bestehenden Treibkäfigs wesentlich dadurch verringert werden, wenn Teile des Treibkäfigs durch das aus leichtem Kunststoff bestehenden Dichtungsband ersetzt werden. Allerdings hat sich gezeigt, daß bei Verwendung derartiger, relativ massiver Dichtungsbänder auch bei Verwendung von Sollbruchstellen kein störungsfreies Ablösen der Dichtungsbänder und damit auch der Treibkäfigsegmente mehr möglich ist, so daß die entsprechenden Geschosse eine relativ schlechte Treffgenauigkeit aufweisen.Experiments by the Applicant have shown that when using the from DE 38 43 566 C1 known sealing strip this can be made substantially wider than in the usual sabot, in which the sealing strip rests on the pressure flange, so that the seal length of the sealing strip can be increased in a simple manner. In addition, the weight of the generally made of aluminum sabot can be substantially reduced by replacing parts of the sabot with the lightweight plastic sealing tape. However, it has been found that when using such relatively solid sealing bands even when using predetermined breaking points no trouble-free detachment of the sealing bands and thus the sabot segments longer possible, so that the corresponding projectiles have a relatively poor accuracy.

Ausgehend von der DE 38 43 566 C1 liegt der Erfindung die Aufgabe zugrunde, einen Treibkäfig der eingangs erwähnten Art anzugeben, bei dem das Ablösen der Treibkäfigsegmente von dem Geschoß durch das Dichtungsband nicht oder nicht wesentlich behindert wird.Starting from the DE 38 43 566 C1 The invention has for its object to provide a sabot of the type mentioned, in which the detachment of the sabot segments of the projectile through the sealing strip is not or not substantially hindered.

Diese Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Weitere, besonders vorteilhafte Ausgestaltungen der Erfindung offenbaren die Unteransprüche.This object is achieved by the features of claim 1. Further, particularly advantageous embodiments of the invention disclose the dependent claims.

Die Erfindung beruht im wesentlichen auf dem Gedanken, daß das Dichtungsband sich aus mehreren, in Umfangsrichtung nebeneinander angeordneten und durch Trennfugen getrennten Dichtungsbandsegmenten zusammensetzt, wobei jeweils ein Dichtungsbandsegment einem Treibkäfigsegment zugeordnet und mit diesem form- und/oder kraftschlüssig verbunden ist.The invention is based essentially on the idea that the sealing strip is composed of a plurality of circumferentially juxtaposed and separated by joints sealing strip segments, wherein each one sealing band segment assigned to a sabot segment and connected to this form-fitting and / or non-positively.

Das Dichtungsband wird daher nicht mehr als ganzes Bauteil konventionell auf den Treibkäfig aufgespritzt oder als ganzes Bauteil auf den Druckflansch des Treibkäfigs aufgepreßt, sondern jedes einzelne Treibkäfigsegment wird mit einem separaten Dichtungsbandteil verbunden. Die Verbindung des Dichtungsbandsegmentes und des entsprechenden Treibkäfigsegmentes kann z.B. durch Kleben, Aufschweißen, eine Formschlußverbindung (z.B. Schwalbenschwanzverbindung) oder eine Kraftschlußverbindung (z.B. durch eine axiale Preßpassung) erfolgen.The sealing tape is therefore not sprayed as a whole component conventionally sprayed on the sabot or pressed as a whole component on the pressure flange of the sabot, but each individual sabot segment is connected to a separate sealing strip part. The connection of the sealing band segment and the corresponding sabot segment may be e.g. by gluing, welding, a positive connection (e.g., dovetail connection) or a frictional connection (e.g., by an axial interference fit).

Der Treibkäfig wird also bei der erfindungsgemäßen Lösung lediglich durch die heckseitig an dem Treibkäfig angeordnete Vulkanisationsschicht und bei vorhandenem Hülsendeckel durch diesen zusammengehalten. Diese Vulkanisationsschicht bewirkt außerdem eine Anfangsdichtung, bevor das Geschoß beim Abschuß in den Kaliberbereich des entsprechenden Waffenrohres gedrückt wird.The sabot is thus held together in the solution according to the invention only by the rear side arranged on the sabot vulcanization layer and existing sleeve cover by this. This Vulkanisationsschicht also causes an initial seal before the projectile is pressed on firing in the caliber area of the corresponding barrel.

Als vorteilhaft hat es sich erwiesen, wenn der heckseitige Bereich des Dichtungsbandes eine heckseitig offene Ausnehmung aufweist, derart, daß eine an dem Treibkäfig anliegende erste Dichtlippe und eine nach außen gerichtete zweite Dichtlippe gebildet wird. Dadurch wird einerseits zusätzlich das Gewicht des Treibkäfigs vermindert. Andererseits drücken beim Abschuß die Treibladungsgase die zweite Dichtlippe gegen die Innenwand des Waffenrohres, was zu einer Verbesserung der Abdichtung gegen sonst seitlich an dem Treibkäfig vorbeiströmenden Treibladungsgasen führt. Diese Dichtungsbewegung der zweiten Dichtlippe kann durch eine in Höhe des Bodens der Ausnehmung außenseitig an der zweiten Dichtlippe angeordnete Biegerille noch unterstützt werden.It has proved to be advantageous if the rear-side region of the sealing strip has a recess which is open on the rear side, such that a first sealing lip bearing against the sabot and an outwardly directed second sealing lip are formed. As a result, on the one hand additionally reduces the weight of the sabot. On the other hand, when fired, the propellant charge gases push the second sealing lip against the inner wall of the weapon barrel, which leads to an improvement of the seal against otherwise laterally past the sabot propellant gases. This sealing movement of the second sealing lip can still be assisted by a bending groove arranged at the level of the bottom of the recess on the outside of the second sealing lip.

Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den folgenden anhand von Figuren erläuterten Ausführungsbeispielen. Es zeigen:

  • Fig. 1 die Seitenansicht eines teilweise im Schnitt dargestellten Geschosses mit einem erfindungsgemäßen abwerfbaren, aus drei Segmenten bestehenden Treibkäfig, welcher auf seinem heckseitigen Druckflansch ein aus drei separaten Segmenten bestehendes Dichtungsband trägt, und
  • Fig.2 die perspektivische Ansicht eines bevorzugten Dichtungsbandsegmentes.
Further details and advantages of the invention will become apparent from the following with reference to figures explained embodiments. Show it:
  • Fig. 1 is a side view of a partially sectioned projectile with a thrown-off invention, consisting of three segments sabot, which carries on its rear-side pressure flange consisting of three separate segments sealing tape, and
  • 2 shows the perspective view of a preferred sealing strip segment.

In Fig.1 ist mit 1 ein z.B. aus einer Panzerkanone mit glattem Waffenrohr verschießbares unterkalibriges Geschoß bezeichnet. Es umfaßt im wesentlichen einen Penetrator 2 mit heckseitig angeordneten Leitflügeln 3 und einen den Penetrator 2 umgebenden Treibkäfig 4, an dem heckseitig ein Hülsendeckel 5 zur Verbindung des Geschosses 1 an einer nicht dargestellten Patronenhülse befestigt ist.In Fig. 1, denoted by 1 is e.g. from a tank gun with smooth weapon tube shootable sub-caliber projectile referred. It essentially comprises a penetrator 2 with guide vanes 3 arranged on the rear side and a sabot 4 surrounding the penetrator 2, on the rear side of which a sleeve cover 5 for connecting the projectile 1 to a cartridge case (not shown) is fastened.

Der aus Aluminium bestehende Treibkäfig 4 besitzt zur Abstützung in dem Waffenrohr (nicht dargestellt) zwei Führungsflansche 6, 7, wobei sich an den heckseitigen Führungsflansch 7, der im folgenden auch als Druckflansch bezeichnet wird, ein kegelstumpfförmiger Treibkäfigbereich 8 anschließt. Der Treibkäfig 4 setzt sich aus drei, in Umfangsrichtung nebeneinander angeordneten Treibkäfigsegmenten 9 zusammen. Dabei sind die Treibkäfigsegmente 9 durch in Richtung der Längsachse 10 des Geschosses 1 erstreckende Trennfugen 11 voneinander getrennt.The sabot 4 made of aluminum has (not shown) for supporting in the gun barrel two guide flanges 6, 7, wherein the rear-side guide flange 7, which is also referred to below as a pressure flange, a frustoconical sabot area 8 is connected. The sabot 4 is composed of three, in the circumferential direction side by side arranged sabot segments 9 together. The sabot segments 9 are separated from one another by separating joints 11 extending in the direction of the longitudinal axis 10 of the projectile 1.

Auf dem Außenumfang des Druckflansches 7 ist ein aus Kunststoff bestehendes Dichtungsband 12 z.B. mittels einer Klebeverbindung befestigt, das sich aus drei, in Umfangsrichtung nebeneinander angeordneten und durch Trennfugen 13 getrennte Dichtungsbandsegmente 14 zusammensetzt. Jedes dieser Dichtungsbandsegmente 14 ist auf einem der drei ihm zugeordneten Treibkäfigsegmenten 9 befestigt.On the outer circumference of the pressure flange 7 is a plastic sealing tape 12, e.g. fastened by means of an adhesive connection, which is composed of three circumferentially adjacent and separated by joints 13 sealing tape segments 14 composed. Each of these sealing band segments 14 is fastened on one of the three sabot segments 9 assigned to it.

Die drei Dichtungsbandsegmente 14 zusammen bilden ein Ringelement mit einer vorderseitig nach innen vorspringenden Rastnase 15, welche in eine entsprechende nutenförmige Ausnehmung 16 des Druckflansches 7 eingreift, und einer sich heckseitig an die Rastnase 15 anschließenden kegelstumpfförmigen Innenfläche 17, über die sich das Dichtungsband 12 an dem kegelstumpfförmigen Treibkäfigbereich 8 abstützt.The three sealing strip segments 14 together form a ring element with a detent lug 15 projecting inwards on the inside, which engages in a corresponding groove-shaped recess 16 of the pressure flange 7, and a truncated cone-shaped inner surface 17 adjoining the detent lug 15 on the rear side, over which the sealing strip 12 adjoins frusto-conical sabot area 8 is supported.

Der heckseitige Bereich sowohl des Treibkäfigs 4 als auch des Dichtungsbandes 12 ist mit einer Vulkanisationsschicht 18 versehen, welche die Treibkäfigsegmente 9 und die Dichtungsbandsegmente 14 zusammenhält.The rear area of both the sabot 4 and the sealing strip 12 is provided with a vulcanization layer 18 which holds the sabot segments 9 and the sealing strip segments 14 together.

Wie Fig.2 zu entnehmen ist, kann der heckseitige Bereich des mit 14' bezeichneten Dichtungsbandsegmentes eine Ausnehmung 19 aufweisen, so daß zwei Dichtlippen 20, 21 gebildet werden. Eine erste Dichtlippe 20, welche sich an den kegelstumpfförmigen Treibkäfigbereich 8 anlegt, und eine zweite Dichtlippe 21, die nach außen gerichtet ist und sich bei Druckbeaufschlagung dichtend an das entsprechende Waffenrohr anlegt. Um die nach außen gerichtete Bewegung der zweiten Dichtlippe 21 zu unterstützen, hat es sich als zweckmäßig erwiesen, wenn in Höhe des Bodens 23 der Ausnehmung 19 außenseitig an der zweiten Dichtlippe 21 zusätzlich eine Biegerille 22 angeordnet ist.As can be seen from FIG. 2, the rear-side region of the sealing-band segment denoted by 14 'can have a recess 19, so that two sealing lips 20, 21 are formed. A first sealing lip 20, which bears against the frustoconical sabot region 8, and a second sealing lip 21 which is directed outwards and, when pressurized, rests sealingly against the corresponding weapon barrel. In order to assist the outward movement of the second sealing lip 21, it has proven to be expedient if, at the level of the bottom 23 of the recess 19, a bending groove 22 is additionally arranged on the outside of the second sealing lip 21.

Die Erfindung ist selbstverständlich nicht auf die vorstehend beschriebenen Ausführungsbeispiele beschränkt. So können die Dichtungsbandsegmente 14, 14' statt durch eine Klebeverbindung auch durch Aufschweißen mit dem zugehörigen Treibkäfigsegment 9 verbunden werden. Es kann aber auch vorgesehen sein, die Rastnase 15 des jeweiligen Dichtungsbandsegmentes 14, 14' und die nutenförmige Ausnehmung 16 des zugehörigen Treibkäfigsegmentes 9 zur Bildung einer Formschlußverbindung schwalbenschwanzförmig oder die Rastnase 15 und die nutenförmige Ausnehmung 16 zur Bildung einer Kraftschlußverbindung als Preßpassung auszubilden.The invention is of course not limited to the embodiments described above. Thus, the sealing strip segments 14, 14 'can be connected by welding with the associated sabot segment 9 instead of by an adhesive bond. But it can also be provided, the latching lug 15 of the respective sealing strip segment 14, 14 'and the groove-shaped recess 16 of the associated sabot segment 9 dovetail to form a positive connection or the locking lug 15 and the groove-shaped recess 16 to form a frictional connection form a press fit.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
GeschoßBullet
22
Penetratorpenetrator
33
Leitflügelvanes
44
Treibkäfigsabot
55
Hülsendeckelcasing cover
66
Führungsflanschguide flange
77
Führungsflansch, DruckflanschGuide flange, pressure flange
88th
kegelstumpfförmiger Treibkäfigbereichfrusto-conical sabot area
99
TreibkäfigsegmentSabot segment
1010
Längsachselongitudinal axis
1111
Trennfugeparting line
1212
Dichtungsbandsealing tape
1313
Trennfugeparting line
14,14'14.14 '
DichtungsbandsegmentSealing tape segment
1515
Rastnaselocking lug
1616
nutenförmige Ausnehmunggroove-shaped recess
1717
kegelstumpfförmige Innenflächefrustoconical inner surface
1818
Vulkanisationsschichtvulcanisation
1919
Ausnehmungrecess
2020
erste Dichtlippefirst sealing lip
2121
zweite Dichtlippesecond sealing lip
2222
Biegerillebending groove
2323
Bodenground

Claims (6)

  1. Discarding sabot for a sub-calibre projectile (1) which comprises a plurality of metal sabot segments (9) which are arranged alongside one another in a circumferential direction and are separated by separating joints (11), which projectile (1) has a pressure flange (7), adjacent to which at the rear end there is a truncated-conical sabot area (8) having the following features:
    a) a plastic sealing band (12) is mounted on the external circumference of the pressure flange (7);
    b) the sealing band (12) is in the form of an annular element with a latching tab (15) which projects inwards at the front and engages in a corresponding recess (16), in the form of a groove, in the pressure flange (7), and a truncated-conical inner surface (17), which is adjacent to it at the rear and by means of which the sealing band (12) is supported on the truncated-conical sabot area (8);
    c) the sealing band (12) is composed of a plurality of sealing band segments (14; 14') which are arranged alongside one another in the circumferential direction and are separated by separating joints (13), with one sealing band segment (14; 14') being associated with a respective sabot segment (9) and being connected to it with an interlock and/or a force fit, and
    d) the rear area of the sealing band (12) is provided with a vulcanisation layer (18) which holds the sealing band segments (14; 14') together.
  2. Discarding sabot according to Claim 1, characterized in that the rear area of the sealing band (14') has a recess (19) which is open at the rear, in such a way that a first sealing lip (20), which rests on the sabot, and a second sealing lip (21), which is directed outwards, are formed.
  3. Discarding sabot according to Claim 2, characterized in that a bending groove (22) is arranged externally on the second sealing lip (21) at the same level as the bottom of the recess (19).
  4. Discarding sabot according to one of Claims 1 to 3, characterized in that each sealing band segment (14; 14') is connected to the associated sabot segment (9) by an adhesive joint or by welding.
  5. Discarding sabot according to one of Claims 1 to 3, characterized in that the latching tab (15) on the respective sealing band segment (14; 14') and the groove-like recess (16) in the associated sabot segment (9) are in the form of dovetails, in order to form an interlocking connection.
  6. Discarding sabot according to one of Claims 1 to 3, characterized in that the latching tab (15) on the respective sealing band segment (14; 14') and the groove-like recess (16) in the associated sabot segment (9) are designed to form a force-fitting joint, as a push fit.
EP04004907A 2003-05-07 2004-03-03 Discarding sabot Expired - Lifetime EP1475600B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10320194 2003-05-07
DE10320194A DE10320194A1 (en) 2003-05-07 2003-05-07 Disposable sabot

Publications (2)

Publication Number Publication Date
EP1475600A1 EP1475600A1 (en) 2004-11-10
EP1475600B1 true EP1475600B1 (en) 2007-09-26

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EP04004907A Expired - Lifetime EP1475600B1 (en) 2003-05-07 2004-03-03 Discarding sabot

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Country Link
US (1) US20050188891A1 (en)
EP (1) EP1475600B1 (en)
JP (1) JP4387861B2 (en)
DE (2) DE10320194A1 (en)
IL (1) IL161799A0 (en)

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DE10320194A1 (en) 2004-12-02
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US20050188891A1 (en) 2005-09-01
IL161799A0 (en) 2005-11-20
DE502004005057D1 (en) 2007-11-08
EP1475600A1 (en) 2004-11-10

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