EP1584887B1 - Method for manufacturing a segmented sabot for a subcalibre projectile - Google Patents
Method for manufacturing a segmented sabot for a subcalibre projectile Download PDFInfo
- Publication number
- EP1584887B1 EP1584887B1 EP05004235A EP05004235A EP1584887B1 EP 1584887 B1 EP1584887 B1 EP 1584887B1 EP 05004235 A EP05004235 A EP 05004235A EP 05004235 A EP05004235 A EP 05004235A EP 1584887 B1 EP1584887 B1 EP 1584887B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- base body
- guide part
- webs
- ring
- sabot
- 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.)
- Not-in-force
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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
Definitions
- the invention relates to a method for producing a segmented sabot for a preferably large-caliber sub-caliber balancing projectile according to the preamble of claim 1.
- Such a sabot is from the DE 199 44 376 A1 known. It consists essentially of a correspondingly segmented base body made of a light metal and a rear-side and a front-side support. While the rear-side support is designed as a closed flange, the front support for reducing the weight of the sabot comprises a plurality of uniformly distributed over the circumference of the sabot, separated by air flow openings radial webs of plastic, the outside on a provided with predetermined breaking points, also made of plastic existing, circumferential ring are interconnected. About the type of attachment of the webs of the front support of the sabot to the body makes the above-mentioned document no further details. Rather, it is merely mentioned that the ring with the webs can also be sprayed onto the base body.
- a sabot for subcaliber projectiles which also comprises on the front side a plurality of uniformly distributed over the circumference of the sabot, separated by air flow openings radial webs.
- the radial webs can either be integrally connected to the main body or be manufactured as separate plastic parts, which are inserted in itself extending in the circumferential direction, dovetail-like grooves of the individual segments of the body.
- the invention has for its object to provide a method for producing a segmented sabot of the type mentioned, in which a lower installation cost is required than in known comparable methods, without thereby affecting the accuracy of the corresponding projectile is adversely affected.
- the invention is based on the idea to produce the front support of the sabot separately and then connect to the body.
- the support is in contrast to DE 33 14 749 A1 configured such that it can be pushed in the direction of the longitudinal axis of the body on the front area. This makes it possible, inter alia, postpone the front support of the sabot in a simple manner only after the pre-assembly of the body on this and connect with this positive and / or non-positive.
- the one-piece guide part of the front support in addition to the webs and the foot also includes the outside of the webs adjacent ring.
- the sabot according to the invention can be produced by injection molding of a suitable plastic, wherein for reasons of sufficient strength preferably carbon fiber reinforced plastic should be used.
- the guide part can also be made of light metal or a light metal alloy.
- the foot of the guide member and the outside of the webs of the guide member subsequent ring should be provided with predetermined breaking points, which lie in the defined by adjacent segments of the body parting plane.
- the sabot 1 comprises a correspondingly segmented and made of aluminum base body 5, with a front support 6 and a rear, an air pocket 7 having support eighth
- the front support 6 is manufactured separately ( Fig.1 ) and then pushed axially onto the base body 5 and connected with this positive and / or non-positive (eg by an adhesive bond) ( Fig.2 ).
- the front support 6 consists of a guide part 9 which has six webs 10 distributed uniformly over the circumference of the sabot 1, which are connected to a foot part 11 and a webs 10 connecting the outside ring 12.
- the main body 5 is provided in its front region on the inside with a cylindrical recess 13 extending in the axial direction and in its laterally adjoining the recess 13 wall portion 14 with a number of webs 10 of the guide member 9 corresponding number slot-shaped recesses 15 in such a way that its foot part 11 is pushed axially into the recess 13 and its webs 10 into the slot-shaped recesses 15 for connecting the main body 5 to the guide part 9 ( Fig.2 ).
- these parts can then be glued together, for example.
- any injection-moldable plastic high strength and low moisture absorption can be used.
- the commercially available Vestamid L-CF15 thermoplastic, polyamide 12 reinforced with 15% carbon fibers
- the foot part 11 of the guide member 9 and the outside of the webs 10 of the guide member 9 subsequent ring 12 are provided with predetermined breaking points (not shown) in the adjacent segments 2-4 of the sabot 1 defined dividing planes 16-18 are.
- FIG 4 another embodiment of the invention is shown. For reasons of clarity, only a single segment of the sabot designated 2 'is shown in perspective. With 5 'are the main body and 8' denotes the rear support.
- the invention is not limited to the methods described above.
- the ring provided with predetermined breaking points can also be manufactured separately and only then connected positively or non-positively with the molded-on webs of the body.
- the ring instead of a carbon-fiber-reinforced plastic, the ring may also consist of a light metal or a light metal alloy, predetermined breaking points being preferably provided in the region of the separation points of adjacent segments of the base body.
- the guide part can be made of light metal or a light metal alloy instead of plastic.
- the profiling of the guide member may for example also have a dovetail shape.
- the slot-shaped recesses do not necessarily have a radial course with respect to the projectile axis. Rather, both in terms of the angle and in terms of the position of the slot-shaped recesses largely arbitrary deviations can be allowed with respect to the projectile axis.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
- Toys (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung eines segmentierten Treibkäfigs für ein vorzugsweise großkalibriges unterkalibriges Wuchtgeschoss nach dem Oberbegriff des Anspruchs 1.The invention relates to a method for producing a segmented sabot for a preferably large-caliber sub-caliber balancing projectile according to the preamble of
Ein derartiger Treibkäfig ist aus der
Aus der
Nachteilig ist bei den bekannten Treibkäfigen unter anderem, dass ihre Fertigung, insbesondere bei einstückiger Ausgestaltung von Grundkörper und Abstützung, sehr arbeits- und damit auch kostenaufwendig ist, so dass entsprechende Treibkäfige für eine Serienfertigung nicht geeignet erscheinen.A disadvantage of the known sabots, inter alia, that their production, especially in one-piece design of the body and support, very labor-intensive and thus costly, so that corresponding sabots for mass production do not seem suitable.
Auch das Aufschieben der Führungsteile in die sich in Umfangsrichtung erstreckenden nutenförmigen Ausnehmungen der Grundkörper hat sich als relativ zeitaufwendig erwiesen, weil entweder nur ein segmentweises Einschieben oder ein Eindrücken von oben der einzelnen schwalbenschwanzförmigen Bereiche der Führungsteile in die entsprechenden nutenförmigen Ausnehmungen des Grundkörpers möglich ist.The sliding of the guide parts in the circumferentially extending groove-shaped recesses of the body has proven to be relatively time consuming because either only a segment-wise insertion or indentation from above the individual dovetail portions of the guide parts in the corresponding groove-shaped recesses of the body is possible.
Der Erfindung liegt die Aufgabe zugrunde, ein Verfahren zur Herstellung eines segmentierten Treibkäfigs der eingangs erwähnten Art anzugeben, bei dem ein geringerer Montageaufwand erforderlich ist als bei bekannten vergleichbaren Verfahren, ohne dass dadurch die Treffgenauigkeit des entsprechenden Geschosses nachteilig beeinflußt wird.The invention has for its object to provide a method for producing a segmented sabot of the type mentioned, in which a lower installation cost is required than in known comparable methods, without thereby affecting the accuracy of the corresponding projectile is adversely affected.
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
Ähnlich wie im Falle der
Um das erfindungsgemäße Verfahren möglichst einfach und kostengünstig realisieren zu können, hat es sich als vorteilhaft erwiesen, wenn mindestens die Stege und ein die Stege tragendes ringförmiges Fußteil als einteiliges Führungsteil hergestellt wird, wobei das Fußteil derart ausgebildet wird, dass es entweder auf den Grundkörper aufgeschoben oder in eine zentrale Ausdrehung des Grundkörpers eingeschoben werden kann. Im letzteren Fall ist es erforderlich, die vorderen Wandbereiche des Grundkörpers mit schlitzförmigen Ausnehmungen zu versehen, in die beim Verbinden des Führungsteiles mit dem Grundkörper die Stege einschoben werden.In order to be able to realize the method according to the invention as simply and inexpensively as possible, it has proved to be advantageous if at least the webs and an annular foot part carrying the webs is produced as a one-piece guide part, wherein the foot part is designed such that it is either pushed onto the main body or can be inserted into a central recess of the body. In the latter case, it is necessary to provide the front wall portions of the body with slot-shaped recesses into which the webs are inserted when connecting the guide member to the base body.
Bei einem besonders vorteilhaften Ausführungsbeispiel der Erfindung ist vorgesehen, dass das einteilige Führungsteil der vorderen Abstützung zusätzlich zu den Stegen und dem Fußteil auch den außenseitig an die Stege angrenzenden Ring umfaßt. Allerdings ist es auch möglich, den gegebenenfalls mit Sollbruchstellen versehenen Ring ebenfalls separat herzustellen und erst anschließend an den äußeren Enden der Stege zu befestigen.In a particularly advantageous embodiment of the invention it is provided that the one-piece guide part of the front support in addition to the webs and the foot also includes the outside of the webs adjacent ring. However, it is also possible to produce the optionally provided with predetermined breaking points ring separately and only then to attach to the outer ends of the webs.
Auf besonders kostengünstige Weise kann der erfindungsgemäße Treibkäfig durch Spritzgießen eines geeigneten Kunststoffes hergestellt werden, wobei aus Gründen einer ausreichenden Festigkeit vorzugsweise kohlefaserverstärkter Kunststoff verwendet werden sollte.In a particularly cost-effective manner, the sabot according to the invention can be produced by injection molding of a suitable plastic, wherein for reasons of sufficient strength preferably carbon fiber reinforced plastic should be used.
Sofern dieses erforderlich sein sollte, kann das Führungsteil aber auch aus Leichtmetall oder einer Leichtmetall-Legierung hergestellt werden.If this should be necessary, the guide part can also be made of light metal or a light metal alloy.
Um bei Schußabgabe eine reproduzierbare Ablösung der Treibkäfigsegmente sicherzustellen, sollte das Fußteil des Führungsteiles und der sich an die Stege des Führungsteiles außenseitig anschließende Ring mit Sollbruchstellen versehen werden, die in der durch benachbarte Segmente des Grundkörpers definierten Trennebene liegen.In order to ensure a reproducible detachment of sabot segments at firing, the foot of the guide member and the outside of the webs of the guide member subsequent ring should be provided with predetermined breaking points, which lie in the defined by adjacent segments of the body parting plane.
Bei einer weiteren Ausführungsform der Erfindung ist vorgesehen, dass zur genauen Lagefixierung des Führungsteiles (in Umfangsrichtung) in bezug auf den Grundkörper an dem Fußteil des Führungsteiles Profilierungen angeordnet werden, die in entsprechend profilierte, sich in axialer Richtung erstreckende Ausnehmungen des Grundkörpers eingreifen. So kann beispielsweise in dem Fall, dass das Fußteil des Führungsteiles auf den vorderen Bereich des Grundkörpers aufgeschoben werden soll, dieses mit einer nach innen vorstehenden schwalbenschwanzförmigen oder T-förmigen Profilierung versehen werden, welche dann in eine entsprechende schwalbenschwanzförmige oder T-förmige, sich in axialer Richtung des Grundkörpers erstreckende nutenförmige Ausnehmung eingeschoben wird.In a further embodiment of the invention, it is provided that for precise positional fixation of the guide member (in the circumferential direction) profiles are arranged with respect to the body on the foot part of the guide member, which engage in correspondingly profiled, extending in the axial direction recesses of the body. So For example, in the event that the foot of the guide member to be pushed onto the front portion of the body, this will be provided with an inwardly projecting dovetailed or T-shaped profiling, which then in a corresponding dovetailed or T-shaped, in axial Direction of the body extending groove-shaped recess is inserted.
Weitere Einzelheiten und Vorteile der Erfindung ergeben sich aus den folgenden anhand von Figuren erläuterten Ausführungsbeispielen. Es zeigen:
-
Fig.1 und 2 den Längsschnitt durch ein erstes Ausführungsbeispiel eines erfindungsgemäßen Treibkäfigs vor und nach dem axialen Aufschieben eines vorderen Führungsteiles auf den Grundkörper; -
Fig.3 die Ansicht des inFig.2 dargestellten Treibkäfigs mit montiertem vorderen Führungsteil von vorne und -
Fig.4 die perspektivische Ansicht des Treibkäfigsegmentes eines zweiten Ausführungsbeispieles eines erfindungsgemäßen Treibkäfigs mit einem montierten vorderen Führungsteil.
-
Fig.1 and 2 the longitudinal section through a first embodiment of a sabot according to the invention before and after the axial sliding a front guide member on the body; -
Figure 3 the view of inFig.2 illustrated sabot with mounted front guide part from the front and -
Figure 4 the perspective view of the sabot segment of a second embodiment of a sabot according to the invention with a mounted front guide part.
In den
Während der Grundkörper 5 und die hintere Abstützung 8 einteilig miteinander verbunden sind, wird die vordere Abstützung 6 separat hergestellt (
Im wesentlichen besteht die vordere Abstützung 6 aus einem Führungsteil 9, das sechs gleichmäßig- über den Umfang des Treibkäfigs 1 verteilt angeordnete Stege 10 aufweist, die mit einem Fußteil 11 und einem die Stege 10 außenseitig verbindenden Ring 12 verbunden sind.In essence, the front support 6 consists of a
Wie
Als Material für das die Stege 10, das Fußteil 11 und den Ring 12 umfassende Führungsteil 9 kann jeder spritzgießfähige Kunststoff hoher Festigkeit und geringer Feuchtigkeitsaufnahme verwendet werden. Insbesondere hat sich das im Handel erhältliche Vestamid L-CF15 (Thermoplast, Polyamid 12 mit 15% Kohlefasern verstärkt) bewährt.As the material for the
Um bei Schußabgabe eine reproduzierbare Ablösung der Segmente 2-4 des Treibkäfigs sicherzustellen, sind das Fußteil 11 des Führungsteiles 9 und der sich an die Stege 10 des Führungsteiles 9 außenseitig anschließende Ring 12 mit Sollbruchstellen versehen (nicht dargestellt), die in der durch benachbarte Segmente 2-4 des Treibkäfigs 1 definierten Trennebenen 16-18 liegen.In order to ensure a reproducible detachment of segments 2-4 of the sabot at firing, the
In
Anders als bei dem vorstehend beschriebenen Ausführungsbeispiel wird bei dem in
Die Erfindung ist selbstverständlich nicht auf die vorstehend beschriebenen Verfahren beschränkt. So kann beispielsweise der mit Sollbruchstellen versehene Ring auch separat hergestellt und erst anschließend mit den an dem Grundkörper angespritzten Stegen form- oder kraftschlüssig verbunden werden. Dabei kann der Ring statt aus einem kohlefaserverstärkten Kunststoff auch aus einem Leichtmetall oder einer Leichtmetall-Legierung bestehen, wobei vorzugsweise im Bereich der Trennstellen benachbarter Segmente des Grundkörpers Sollbruchstellen vorgesehen sind.Of course, the invention is not limited to the methods described above. Thus, for example, the ring provided with predetermined breaking points can also be manufactured separately and only then connected positively or non-positively with the molded-on webs of the body. In this case, instead of a carbon-fiber-reinforced plastic, the ring may also consist of a light metal or a light metal alloy, predetermined breaking points being preferably provided in the region of the separation points of adjacent segments of the base body.
Sofern dieses erforderlich sein sollte, kann das Führungsteil statt aus Kunststoff auch aus Leichtmetall oder einer Leichtmetall-Legierung hergestellt werden.If this should be necessary, the guide part can be made of light metal or a light metal alloy instead of plastic.
Ferner kann die Profilierung des Führungsteiles beispielsweise auch eine schwalbenschwanzförmige Gestalt aufweisen.Furthermore, the profiling of the guide member may for example also have a dovetail shape.
Schließlich müssen bei dem in den
- 11
- Treibkäfigsabot
- 2, 2', 3, 42, 2 ', 3, 4
- Segmentesegments
- 5,5'5.5 '
- Grundkörperbody
- 66
- (vordere) Abstützung(front) support
- 77
- Lufttascheair pocket
- 8,8'8,8 '
- hintere Abstützungrear support
- 9,9'9.9 '
- Führungsteileguide parts
- 10,10'10.10 '
- StegeStege
- 11,11'11.11 '
- Fußteilefootboards
- 12,12'12.12 '
- Ringerings
- 1313
- Eindrehungrecess
- 1414
- Wandbereichwall area
- 1515
- schlitzförmige Ausnehmungslot-shaped recess
- 16-1816-18
- Trennebenenseparating planes
- 1919
- Profilierungprofiling
- 2020
- nutenförmige Ausnehmunggroove-shaped recess
Claims (8)
- Method for producing a segmented discarding sabot (1) for a sub-calibre kinetic-energy projectile which has a correspondingly segmented base body (5; 5') and a front support (6), which is attached to the base body (5; 5') and has webs (10; 10') which are arranged distributed uniformly over the circumference of the discarding sabot (1) and are connected to one another on the outside via a circumferential ring (12; 12'), characterized in that the webs (10; 10') of the front support (6) and an annular foot part (11; 11'), which supports the webs (10; 10'), are produced as a separate integral guide part (9; 9'), and in that the foot part (11') of the guide part (9') is pushed onto the base body (5') in the axial direction or in that the foot part (11) of the guide part (9) is pushed into a cylindrical central indentation (13) in the base body (5), with the webs (10) being inserted into corresponding recesses (15), which are in the form of slots, in the front wall area (14) of the base body (5).
- Method according to Claim 1, characterized in that the separate integral guide part (9; 9') also surrounds the ring (12; 12') which is adjacent to the webs (10; 10') on the outside.
- Method according to Claim 1 or 2, characterized in that the guide part (9; 9') is composed of carbon-fibre-reinforced plastic and is produced by injection moulding.
- Method according to Claim 1 or 2, characterized in that the guide part (9; 9') is produced from light metal or a light-metal alloy.
- Method according to one of Claims 1 to 4, characterized in that the foot part (11; 11') of the guide part (9; 9') and the ring (12; 12') which is adjacent to the webs (10; 10') of the guide part (9; 9') on the outside are provided with weak points which are located in the separating planes (16-18) defined by adjacent segments (2-4; 2') of the base body (5; 5').
- Method according to one of Claims 1 to 5, characterized in that the guide part (9; 9') of the front support is provided on its side facing the base body (5; 5') with at least one profile (19) which is inserted into a corresponding recess (20), which is in the form of a groove and extends in the axial direction of the base body (5; 5'), in the base body (5; 5'), in order to connect the base body (5; 5') to the guide part (9; 9').
- Method according to Claim 6, characterized in that the profile (19) of the guide part (9; 9') is in the form of a dovetail or is T-shaped.
- Method according to Claim 1, characterized in that the ring (12; 12') is produced separately and is connected in an interlocking and/or force-fitting manner to the guide part (9; 9'), which comprises the webs (10; 10') and the foot part (11; 11').
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102004017674 | 2004-04-10 | ||
DE102004017674A DE102004017674A1 (en) | 2004-04-10 | 2004-04-10 | Method for producing a segmented sabot for a subcaliber mass projectile |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1584887A1 EP1584887A1 (en) | 2005-10-12 |
EP1584887B1 true EP1584887B1 (en) | 2009-02-18 |
Family
ID=34895559
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP05004235A Not-in-force EP1584887B1 (en) | 2004-04-10 | 2005-02-26 | Method for manufacturing a segmented sabot for a subcalibre projectile |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1584887B1 (en) |
AT (1) | ATE423301T1 (en) |
DE (2) | DE102004017674A1 (en) |
ES (1) | ES2320231T3 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102009049440A1 (en) | 2009-10-14 | 2011-07-07 | Nitrochemie Aschau GmbH, 84544 | sabot |
DE102019125128A1 (en) * | 2019-09-18 | 2021-03-18 | Rheinmetall Waffe Munition Gmbh | Sabot |
DE102022118022A1 (en) | 2022-07-19 | 2024-01-25 | Rheinmetall Waffe Munition Gmbh | sabot |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3314749A1 (en) | 1983-04-23 | 1984-10-25 | L'Etat Français représenté par le Délégué Général pour l'Armement, Paris | SEGMENTED DRIVING CAGE |
DE4206217C2 (en) * | 1992-02-28 | 1997-08-14 | Rheinmetall Ind Ag | Sub-caliber balancing projectile |
DE19944376B4 (en) | 1999-09-16 | 2007-05-16 | Rheinmetall Waffe Munition | Segmented sabot |
-
2004
- 2004-04-10 DE DE102004017674A patent/DE102004017674A1/en not_active Withdrawn
-
2005
- 2005-02-26 AT AT05004235T patent/ATE423301T1/en not_active IP Right Cessation
- 2005-02-26 DE DE502005006631T patent/DE502005006631D1/en active Active
- 2005-02-26 ES ES05004235T patent/ES2320231T3/en active Active
- 2005-02-26 EP EP05004235A patent/EP1584887B1/en not_active Not-in-force
Also Published As
Publication number | Publication date |
---|---|
ES2320231T3 (en) | 2009-05-20 |
EP1584887A1 (en) | 2005-10-12 |
ATE423301T1 (en) | 2009-03-15 |
DE102004017674A1 (en) | 2005-10-27 |
DE502005006631D1 (en) | 2009-04-02 |
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