EP0123299A2 - Segmented sabot - Google Patents
Segmented sabot Download PDFInfo
- Publication number
- EP0123299A2 EP0123299A2 EP84104484A EP84104484A EP0123299A2 EP 0123299 A2 EP0123299 A2 EP 0123299A2 EP 84104484 A EP84104484 A EP 84104484A EP 84104484 A EP84104484 A EP 84104484A EP 0123299 A2 EP0123299 A2 EP 0123299A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- support
- sabot
- webs
- segments
- balancing
- 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
Links
- 238000000034 method Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000005096 rolling process Methods 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
- F42B14/061—Sabots for long rod fin stabilised kinetic energy projectiles, i.e. multisegment sabots attached midway on the projectile
Definitions
- the invention relates to a segmented sabot according to the preamble of claim 1.
- a sabot of the aforementioned type is known from DE-PS 22 36 142. It has the air pocket in the front support and a rear edge in the vicinity of the second support, around which the segments are detached from the balancing projectile. In the event of shelling, an uneven detachment of the sabot segments from the balancing projectile was found. This can lead to a harmful swinging of the balancing bullet. Due to the oscillation of the balancing bullet, both its accuracy and its penetration performance can be significantly affected. The latter primarily relates to the effect against new types of targets, which require both particularly long balancing bullets and the greatest possible freedom of oscillation. Investigations into the behavior of the balancing projectile-sabot arrangement showed that unstable flow conditions can occur in the area around the front part of the balancing projectile, which impair the uniform segment-wise detachment of the sabot.
- the invention has for its object to provide a sabot of the type mentioned, the segment-wise detachment behavior is not affected by the pressure fluctuations mentioned and is thus improved.
- a first sabot 1 with a front support 2 and a rear support 3 has three segments 4, 5 and. 6, which touch each other in pairs in butt joints 7, 8 and 9.
- the front support 2 consists of webs 10, 11 and 12, which are separated from one another by spaces 13.1, 13.2 and 13.3.
- the webs 10, 11 and 12 are each delimited on the front by a curved surface 14 and on the rear by a curved surface 15 and inclined in the direction of an arrow S indicating the direction of the weft against a central longitudinal axis 20 and have a narrow front end surface 16 and an outside support surface 29 on.
- a circular-cylindrical central receptacle 18 for a balancing projectile extends along the longitudinal axis 20 from a rear edge 17 to a front edge 28 of the sabot 1.
- the receptacle 18 has positive locking means 19 on the circumference for corresponding positive locking means on the balancing projectile.
- the rear support 3 surrounds the longitudinal axis 20 with a closed circular cylindrical peripheral surface 30 and has a receptacle 32 in the peripheral region for a sealing tape (not shown).
- the rear support 3 is formed on the front as an air pocket delimited by an edge 35 with a base area 36 and is delimited on the back by a gas pressure receiving area 31 which has a respective groove 34 in the area of the butt joints 7, 8 and 9 for receiving a sealing element (not shown).
- the sabot 1 surrounds the balancing projectile in a form-fitting manner, the mouth of a weapon barrel in the direction of arrow S, the incoming air can pass through the spaces 13.1, 13.2 and 13.3 into the air pocket 33 and thus initiates the detaching process of the segments 4, 5 and 6 from the balancing projectile .
- a lever arm 37 extending from the rear edge 17 (as a rolling edge opposite the balancing projectile) to the base 36 of the air pocket 33 is comparatively short and the detachment process of the segments 4, 5 and 6 is due to the large distance from the missile tip is not affected by the pressure fluctuations in the front area.
- the comparatively small mass of the respective segments 4, 5 and 6 also results in a significantly reduced impact on the balancing projectile, which is advantageously excited to oscillate considerably less.
- the webs In a second sabot according to FIG. 3, the webs, of which only one web 40 is shown, are bounded on the front by a comparatively wider surface 42, which consequently offers greater resistance to the incoming air.
- the webs are made of low density plastic.
- a main part of a light metal alloy not designated in any more detail, has an outer surface 23 formed from paragraphs 23.1 to 23.5 with dovetail grooves 25.1 and 25.2.
- the web 40 is made of plastic and is inserted into the dovetail grooves 24.1 and 24.2.
- a region with the weakest cross section is designed as a predetermined breaking point 25.
- the webs 40 flow against the air in the area of the surface 42 and break off at 25.
- the further detaching process takes place essentially as described in connection with the first embodiment.
- the segments can also be detached from the balancing projectile starting from the back or also essentially parallel to the longitudinal axis of the projectile.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Disintegrating Or Milling (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Toys (AREA)
- Testing Of Engines (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Lining And Supports For Tunnels (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Bei dem aus Segmenten 4, 5... bestehenden Treibkäfig 1 ist die zum Ablösen von einem unterkalibrigen Geschoß erforderliche Lufttasche 33 im Bereich der rückseitigen Abstützung 3 und damit in der Nachbarschaft der Gasdruckaufnahmefläche 31 vorgesehen. Die vorderseitige Abstützung 2 besteht aus Stegen 10, 11 ..., zwischen denen Freiräume als Durchströmöffnungen wirksam sind. Wenigstens die Stege 10, 11 ... können aus einem Kunststoff gefertigt sein und, beispielsweise im Bereich der gekrümmten Fläche 14, eine jeweilige Sollbruchstelle aufweisen und folglich abbrechbar sein.In the case of the drive cage 1, which consists of segments 4, 5. The front support 2 consists of webs 10, 11 ..., between which spaces are effective as flow openings. At least the webs 10, 11 ... can be made of a plastic and, for example in the area of the curved surface 14, have a respective predetermined breaking point and can therefore be broken off.
Description
Die Erfindung betrifft einen segmentierten Treibkäfig nach dem Oberbegriff des Patentanspruch 1.The invention relates to a segmented sabot according to the preamble of claim 1.
Ein Treibkäfig der vorgenannten Gattung ist bekannt aus der DE-PS 22 36 142. Er weist in der vorderen Abstützung die Lufttasche auf und in der Nachbarschaft der zweiten Abstützung eine rückseitige Kante, um die sich die Ablösung der Segmente vom Wuchtgeschoß vollzieht. Bei Beschüssen konnte ein ungleichmäßiges Ablösen der Treibkäfigsegmente vom Wuchtgeschoß festgestellt werden. Dies kann zu einer schädlichen Pendelung des Wuchtgeschosses führen. Durch die Pendelung des Wuchtgeschosses kann sowohl dessen Treffgenauigkeit wie auch dessen Durchschlagsleistung empfindlich beeinträchtigt werden. Letzteres bezieht sich vornehmlich auf die Wirkung gegen neuartige Ziele, die sowohl besonders lange Wuchtgeschosse wie auch deren weitestgehende Pendelungsfreiheit erforderlich machen. Untersuchungen zum Verhalten von Wuchtgeschoß-Treibkäfig-Anordnung ergaben, daß im Bereich um den Vorderteil des Wuchtgeschosses instabile Strömungsverhältnisse auftreten können, die das gleichmäßige segmentweise Ablösen des Treibkäfigs beeinträchtigen.A sabot of the aforementioned type is known from DE-PS 22 36 142. It has the air pocket in the front support and a rear edge in the vicinity of the second support, around which the segments are detached from the balancing projectile. In the event of shelling, an uneven detachment of the sabot segments from the balancing projectile was found. This can lead to a harmful swinging of the balancing bullet. Due to the oscillation of the balancing bullet, both its accuracy and its penetration performance can be significantly affected. The latter primarily relates to the effect against new types of targets, which require both particularly long balancing bullets and the greatest possible freedom of oscillation. Investigations into the behavior of the balancing projectile-sabot arrangement showed that unstable flow conditions can occur in the area around the front part of the balancing projectile, which impair the uniform segment-wise detachment of the sabot.
Der Erfindung liegt die Aufgabe zugrunde, einen Treibkäfig der eingangs genannten Gattung zu schaffen, dessen segmentweises Ablöseverhalten nicht von den genannten Druckschwankungen beeinflußt und damit verbessert wird.The invention has for its object to provide a sabot of the type mentioned, the segment-wise detachment behavior is not affected by the pressure fluctuations mentioned and is thus improved.
Gelöst wird diese Aufgabe durch die im Kennzeichen des Patentanspruchs 1 angegebene Erfindung, die durch die Lehren nach den Kennzeichen der weiteren Patentansprüche vorteilhaft .ausgestaltet wird.This object is achieved by the invention specified in the characterizing part of patent claim 1, which is advantageously embodied by the teachings according to the characterizing part of the further patent claims.
Die Erfindung wird nachstehend anhand zweier in der Zeichnung dargestellter Ausführungsbeispiele näher erläutert.The invention is explained in more detail below with reference to two exemplary embodiments shown in the drawing.
Es zeigen:
- Fig. 1 einen ersten Treibkäfig nach der Erfindung in Vorderansicht,
- Fig. 2 den ersten Treibkäfig im Schnitt nach der Linie II - II in Fig. 1 und
- Fig. 3 einen vorderen Bereich eines Segments eines zweiten Treibkäfigs nach der Erfindung.
- 1 shows a first sabot according to the invention in front view,
- Fig. 2 shows the first sabot in section along the line II - II in Fig. 1 and
- Fig. 3 shows a front region of a segment of a second sabot according to the invention.
Beim Ausführungsbeispiel nach den Fig. 1 und 2 weist ein erster Treibkäfig 1 mit einer vorderseitigen Abstützung 2 und einer rückseitigen Abstützung 3 drei Segmente 4, 5 u. 6 auf, die sich in Stoßfugen 7, 8 und 9 paarweise gegenseitig berühren. Die vorderseitige Abstützung 2 besteht aus Stegen 10, 11 und 12, die durch Zwischenräume 13.1, 13.2 und 13.3 voneinander getrennt sind. Die Stege 10, 11 und 12 sind jeweils vorderseitig durch eine gekrümmte Fläche 14 und rückseitig durch eine gekrümmte Fläche 15 begrenzt und in Richtung eines die Schußrichtung andeutenden Pfeils S gegen eine zentrale Längsachse 20 geneigt und weisen eine schmale vordere Stirnfläche 16 und eine außenseitige Stützfläche 29 auf.1 and 2, a first sabot 1 with a
Entlang der Längsachse 20 erstreckt sich eine kreiszylindrische zentrale Aufnahme 18 für ein nicht dargestelltes Wuchtgeschoß von einer Heckkante 17 bis zu einer Vorderkante 28 des Treibkäfigs l. Die Aufnahme 18 weist umfangsseitig Formschlußmittel 19 für korrespondierende Formschlußmittel am Wuchtgeschoß auf. Die rückseitige Abstützung 3 umgreift mit einer geschlossenen kreiszylindrischen Umfangsfläche 30 die Längsachse 20 und weist im Umfangsbereich eine Aufnahme 32 für ein nicht dargestelltes Dichtungsband auf. Die rückseitige Abstützung 3 ist vorderseitig als von einer Kante 35 begrenzte Lufttasche mit einer Grundfläche 36 ausgebildet und wird rückseitig von einer Gasdruckaufnahmefläche 31 begrenzt, die im Bereich der Stoßfugen 7, 8 und 9 eine jeweilige Nut 34 zur Aufnahme eines nicht dargestellten Dichtungselements aufweist.A circular-cylindrical
Verläßt der das Wuchtgeschoß formschlüssig umgreifende Treibkäfig 1 die Mündung eines Waffenrohres in Richtung des Pfeils S, kann die anströmende Luft durch die Zwischenräume 13.1, 13.2 und 13.3 in die Lufttasche 33 gelangen und leitet damit den Ablösevorgang der Segmente 4, 5 und 6 vom Wuchtgeschoß ein. Dabei erweist sich als vorteilhaft, daß sich ein von der Heckkante 17 (als Abrollkante gegenüber dem Wuchtgeschoß) bis zur Grundfläche 36 der Lufttasche 33 erstreckener Hebelarm 37 vergleichsweise kurz ist und der Ablösevorgang der Segmente 4, 5 und 6 wegen der großen Entfernung von der Fluggeschoßspitze nicht von den Druckschwankungen im vorderen Bereich beeinträchtigt wird. Aus der vergleichsweise geringen Masse des jeweiligen Segments 4, 5 und 6 resultiert zudem eine wesentlich verringerte Stoßwirkung auf das Wuchtgeschoß, das hierdurch vorteilhafterweise erheblich weniger zur Pendelung angeregt wird.If the sabot 1 surrounds the balancing projectile in a form-fitting manner, the mouth of a weapon barrel in the direction of arrow S, the incoming air can pass through the spaces 13.1, 13.2 and 13.3 into the
Bei einem zweiten Treibkäfig nach der Fig. 3 sind die Stege, von denen nur ein Steg 40 dargestellt ist, vorderseitig von einer vergleichsweise b reiteren Fläche 42 begrenzt, die folglich der anströmenden Luft einen größeren Widerstand entgegensetzt. Die Stege bestehen aus Kunststoff geringer Dichte. Ein nicht näher bezeichneter Hauptteil aus einer Leichtmetallegierung weist eine aus Absätzen 23.1 bis 23.5 gebildete Außenfläche 23 mit Schwalbenschwanznuten 25.1 und 25.2 auf. Der Steg 40 ist aus Kunststoff gestaltet, und ist in die Schwalbenschwanznuten 24.1 und 24.2 eingeschoben. Ein Bereich schwächsten Querschnitts ist als Sollbruchstelle 25 ausgebildet.In a second sabot according to FIG. 3, the webs, of which only one
Beim Verlassen des Waffenrohres werden die Stege 40 im Bereich der Fläche 42 von der Luft angeströmt und brechen bei 25 ab. Der weitere Ablösevorgang vollzieht sich im wesentlichen derart, wie er im Zusammenhang mit dem ersten Ausführungsbeispiel beschrieben ist. Durch eine nicht dargestellte AusgestaLtung der Gasdruckaufnahmefläche am Treibkäfig kann das AbLösen der Segmente vom Wuchtgeschoß auch von hinten beginnend oder auch im wesentlichen parallel zur Geschoßlängsachse erfolgen.When leaving the gun barrel, the
Während beim Ausführungsbeispiel nach Fig. 3 die Stege 40 als aus Kunststoff gefertigt dargestellt und beschrieben sine kann dies auch, wenigstens teilsweise, auf den nicht näher bezeichneten Hauptteil des betreffenden Segments zutreffen. Dies gilt auch für das Ausführungsbeispiel nach den Fig. 1 und 2, wobei eine der Sollbruchstelle 25 in Fig. 3 im wesent lichen entsprechende nicht näher bezeichnete jeweilige Sollbruchstelle beispielsweise im Bereich der gekrümmten Fläche 14 angeordnet sein kann.While the
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84104484T ATE29925T1 (en) | 1983-04-23 | 1984-04-19 | SEGMENTED SAVINGS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3314749 | 1983-04-23 | ||
DE19833314749 DE3314749A1 (en) | 1983-04-23 | 1983-04-23 | SEGMENTED DRIVING CAGE |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0123299A2 true EP0123299A2 (en) | 1984-10-31 |
EP0123299A3 EP0123299A3 (en) | 1985-01-16 |
EP0123299B1 EP0123299B1 (en) | 1987-09-23 |
Family
ID=6197163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84104484A Expired EP0123299B1 (en) | 1983-04-23 | 1984-04-19 | Segmented sabot |
Country Status (5)
Country | Link |
---|---|
US (1) | US4608927A (en) |
EP (1) | EP0123299B1 (en) |
JP (1) | JPS6042599A (en) |
AT (1) | ATE29925T1 (en) |
DE (2) | DE3314749A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1333242A1 (en) * | 2002-02-04 | 2003-08-06 | Giat Industries | Sabot for arrow type projectiles |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3724401A1 (en) * | 1987-07-23 | 1989-05-18 | Rheinmetall Gmbh | Wing-stabilized, sub-caliber floating cage |
DE3843566C1 (en) * | 1988-12-23 | 1995-04-06 | Rheinmetall Gmbh | Segmented discarding sabot |
DE3904626A1 (en) * | 1989-02-16 | 1990-08-30 | Diehl Gmbh & Co | Discarding sabot for a sub-calibre projectile |
DE4020404A1 (en) * | 1990-06-27 | 1992-01-09 | Rheinmetall Gmbh | Segmented drive cage for missile - has segments held together in outer area of adjacent webs by primary guide fillets |
FR2665761B1 (en) * | 1990-08-13 | 1994-09-16 | Giat Ind Sa | SEALING BELT FOR ARROW PROJECTILE. |
US5359938A (en) * | 1990-10-24 | 1994-11-01 | Olin Corporation | Ultra light weight sabot |
US5103735A (en) * | 1991-06-20 | 1992-04-14 | The United States Of America As Represented By The Secretary Of The Army | Splined sabot |
DE4206217C2 (en) * | 1992-02-28 | 1997-08-14 | Rheinmetall Ind Ag | Sub-caliber balancing projectile |
US5473989A (en) * | 1995-02-24 | 1995-12-12 | Buc; Steven M. | Fin-stabilized discarding sabot projectile |
DE19944376B4 (en) * | 1999-09-16 | 2007-05-16 | Rheinmetall Waffe Munition | Segmented sabot |
DE102004017674A1 (en) | 2004-04-10 | 2005-10-27 | Rheinmetall Waffe Munition Gmbh | Method for producing a segmented sabot for a subcaliber mass projectile |
US8468732B2 (en) * | 2009-01-15 | 2013-06-25 | Nicholas E. Young | Trigger assembly |
US8069791B1 (en) | 2010-03-31 | 2011-12-06 | The United States Of America As Represented By The Secretary Of The Navy | Curvilinear sabot system |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1090057A (en) * | 1953-04-27 | 1955-03-28 | Projectile for infantry mortars | |
US2998780A (en) * | 1956-05-28 | 1961-09-05 | William B Anspacher | High velocity, fin stabilized projectile, rifled barrel gun system |
FR2087797A5 (en) * | 1970-03-12 | 1971-12-31 | Space Res Corp | |
DE2232791A1 (en) * | 1972-07-04 | 1974-01-17 | Rheinmetall Gmbh | ARRANGEMENT ON FULL OR SUB-CALIBRATED FLOORS |
FR2254776A2 (en) * | 1973-03-19 | 1975-07-11 | Space Res Corp | |
EP0048644A1 (en) * | 1980-09-23 | 1982-03-31 | ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement | Vaned projectile of the arrow type |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3164092A (en) * | 1962-11-13 | 1965-01-05 | Remington Arms Co Inc | Ammunition sabot |
DE2731093A1 (en) * | 1977-07-09 | 1979-01-25 | Josef Prof Dr Ing Ballmann | BULLET, IN PARTICULAR TO SHOOT FROM A SMOOTH TUBE |
US4284008A (en) * | 1979-04-12 | 1981-08-18 | The United States Of America As Represented By The Secretary Of The Army | Double ramp discarding sabot |
US4326464A (en) * | 1979-12-10 | 1982-04-27 | The United States Of America As Represented By The Secretary Of The Army | Gusset discarding sabot munition |
DE3033041C2 (en) * | 1980-09-03 | 1986-04-10 | L'Etat Français représenté par le Délégué Général pour l'Armement, Paris | Metal and plastic sabot |
FR2521717B1 (en) * | 1982-02-16 | 1986-11-21 | France Etat | CINETIC ENERGY PROJECTILE AND LAUNCHING METHOD THEREOF |
-
1983
- 1983-04-23 DE DE19833314749 patent/DE3314749A1/en not_active Withdrawn
-
1984
- 1984-04-19 EP EP84104484A patent/EP0123299B1/en not_active Expired
- 1984-04-19 AT AT84104484T patent/ATE29925T1/en not_active IP Right Cessation
- 1984-04-19 DE DE8484104484T patent/DE3466433D1/en not_active Expired
- 1984-04-23 JP JP59080340A patent/JPS6042599A/en active Granted
- 1984-04-23 US US06/603,131 patent/US4608927A/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1090057A (en) * | 1953-04-27 | 1955-03-28 | Projectile for infantry mortars | |
US2998780A (en) * | 1956-05-28 | 1961-09-05 | William B Anspacher | High velocity, fin stabilized projectile, rifled barrel gun system |
FR2087797A5 (en) * | 1970-03-12 | 1971-12-31 | Space Res Corp | |
DE2232791A1 (en) * | 1972-07-04 | 1974-01-17 | Rheinmetall Gmbh | ARRANGEMENT ON FULL OR SUB-CALIBRATED FLOORS |
FR2254776A2 (en) * | 1973-03-19 | 1975-07-11 | Space Res Corp | |
EP0048644A1 (en) * | 1980-09-23 | 1982-03-31 | ETAT-FRANCAIS représenté par le Délégué Général pour l' Armement | Vaned projectile of the arrow type |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1333242A1 (en) * | 2002-02-04 | 2003-08-06 | Giat Industries | Sabot for arrow type projectiles |
FR2835602A1 (en) * | 2002-02-04 | 2003-08-08 | Giat Ind Sa | SHOE FOR AMMUNITION ARROW |
US6805058B2 (en) | 2002-02-04 | 2004-10-19 | Giat Industries | Sabot for fin-stabilized ammunition |
Also Published As
Publication number | Publication date |
---|---|
DE3314749A1 (en) | 1984-10-25 |
ATE29925T1 (en) | 1987-10-15 |
EP0123299A3 (en) | 1985-01-16 |
DE3466433D1 (en) | 1987-10-29 |
JPS6042599A (en) | 1985-03-06 |
JPH0215798B2 (en) | 1990-04-13 |
US4608927A (en) | 1986-09-02 |
EP0123299B1 (en) | 1987-09-23 |
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