EP0256199A2 - Load carrying missile for ejectable sub-ammunition - Google Patents

Load carrying missile for ejectable sub-ammunition Download PDF

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Publication number
EP0256199A2
EP0256199A2 EP87101302A EP87101302A EP0256199A2 EP 0256199 A2 EP0256199 A2 EP 0256199A2 EP 87101302 A EP87101302 A EP 87101302A EP 87101302 A EP87101302 A EP 87101302A EP 0256199 A2 EP0256199 A2 EP 0256199A2
Authority
EP
European Patent Office
Prior art keywords
payload
lifting ring
ring screw
disc
fuse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87101302A
Other languages
German (de)
French (fr)
Other versions
EP0256199B1 (en
EP0256199A3 (en
Inventor
Siegmar Fischer
Günter Sikorski
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 Industrie AG
Original Assignee
Rheinmetall 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 GmbH filed Critical Rheinmetall GmbH
Publication of EP0256199A2 publication Critical patent/EP0256199A2/en
Publication of EP0256199A3 publication Critical patent/EP0256199A3/en
Application granted granted Critical
Publication of EP0256199B1 publication Critical patent/EP0256199B1/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
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/02—Fuze bodies; Fuze housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/56—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information for dispensing discrete solid bodies
    • F42B12/58—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles
    • F42B12/62—Cluster or cargo ammunition, i.e. projectiles containing one or more submissiles the submissiles being ejected parallel to the longitudinal axis of the projectile
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B39/00—Packaging or storage of ammunition or explosive charges; Safety features thereof; Cartridge belts or bags
    • F42B39/20—Packages or ammunition having valves for pressure-equalising; Packages or ammunition having plugs for pressure release, e.g. meltable ; Blow-out panels; Venting arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
    • F42C19/00—Details of fuzes
    • F42C19/04—Protective caps

Definitions

  • the invention relates to a payload projectile according to the preamble of patent claim 1.
  • the seat for the disk with the same diameter merges into the space for the detonator, while the rear surface of the lifting ring screw is formed flat.
  • the lifting ring screw is first unscrewed, the igniter inserted and then the lifting ring screw screwed in again.
  • the disc between the igniter and the discharge charge serves to protect the igniter: its central bore forms an ignition channel on the one hand to initiate the discharge charge and on the other hand protects the igniter during the build-up of pressure, so that the pressure that builds up is largely available for the discharge process.
  • the ignition temperature of the discharge charge is in the region of 130 ° C.
  • the fuse was actuated in time, despite the fact that the fuse had been actuated in time: the washer had come to rest against the flat rear surface of the lifting ring screw, and the passage cross-section of the ignition channel was not sufficient to prevent damaging internal pressure.
  • the invention has for its object a generic to create a payload storey, in which an ejection of the submunition in the unignited payload storey is avoided with certainty.
  • a payload projectile has a carrier casing 10 with an oval region 12, an ejection disk 52 dividing the interior space into a front pressure chamber 54 and a load chamber 46 containing submunition 50, and a detachable part 48. If the internal pressure building up in the pressure chamber 54 after the initiation of an ejection charge 18 exceeds a predetermined value, then the force causing an intended shear effect is transmitted directly to the part 48 for ejecting the submunition 50 via the ejection disk 52 and the column formed by the submunition 50.
  • Fig. 2 shows in the pressure chamber 54, the receptacle 14 with a sleeve 16 for the ejection charge 18, a seat 20 for the disc 22 with its central bore (ignition channel) 24, a space 26 for a detonator 27 shown in dashed lines and a bore with an internal thread 28 for a lifting ring screw 30.
  • the latter has a body with an external thread 32 and an unspecified surface for fixing a seal 33.
  • the space 26 for the igniter 27 has a larger clear diameter than the seat 20 for the disk 22.
  • the security against unintentional ejection of the submunition in a payload projectile can not only be ensured in a very simple manner, but also no additional manipulation is required when the payload projectile is fired, which - especially under operating conditions - not only resulted in a loss of time but also could also be forgotten.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Air Bags (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Photoreceptors In Electrophotography (AREA)

Abstract

Bei einem Nutzlastgeschoß für ausstoßbare Submunition wird die Sicherheit gegen einen unbeabsichtigten Ausstoß der Submunition in Abwesenheit eines Zünders dadurch gewährleistet, daß die sich aus einer Ausstoßladung 18 bildenden Heißgase den von einer Schmelzsicherung 38 freigegebenen Durchlaß 35 passieren können, so daß sich im Druckraum 54 ein den Ausstoß verursachender Innendruck nicht aufbauen kann.In the case of a payload projectile for ejectable submunition, the security against unintentional ejection of the submunition in the absence of an igniter is ensured by the fact that the hot gases forming from an ejection charge 18 can pass through the passage 35, which is released by a fuse 38, so that the pressure chamber 54 can enter Can not build up internal pressure causing emissions.

Description

Die Erfindung betrifft ein Nutzlastgeschoß nach dem Oberbe­griff des Patentanspruchs 1.The invention relates to a payload projectile according to the preamble of patent claim 1.

Bei einem bekannten gattungsgleichen Nutzlastgeschoß geht der Sitz für die Scheibe mit gleichem Durchmesser in den Raum für den Zünder über, während die Rückseitenfläche der Hebering­schraube planeben ausgebildet ist. Während der depotseitigen Lagerung und des Transports des Nutzlastgeschosses befindet sich aus Gründen der Sicherheit kein Zünder in dem für ihn vorgesehenen Raum. Zur Bezünderung des Nutzlastgeschosses am Einsatzort wird zunächst die Heberingschraube ausgedreht, der Zünder eingesetzt und dann die Heberingschraube wieder eingedreht. Im bezünderten Zustand dient die Scheibe zwischen Zünder und Ausstoßladung dem Schutz des Zünders: ihre zentra­le Bohrung bildet einerseits einen Zündkanal zum Initiieren der Ausstoßladung und schützt andererseits während des Druck­aufbaues den Zünder, so daß der sich aufbauende Druck weitest­gehend vollständig für den Ausstoßvorgang verfügbar ist.In a known type of payload bullet of the same type, the seat for the disk with the same diameter merges into the space for the detonator, while the rear surface of the lifting ring screw is formed flat. For safety reasons, there is no detonator in the space provided for it during storage and transportation of the payload floor. To ignite the payload projectile on site, the lifting ring screw is first unscrewed, the igniter inserted and then the lifting ring screw screwed in again. In the ignited state, the disc between the igniter and the discharge charge serves to protect the igniter: its central bore forms an ignition channel on the one hand to initiate the discharge charge and on the other hand protects the igniter during the build-up of pressure, so that the pressure that builds up is largely available for the discharge process.

Während die Schmelzsicherung in einem Durchlaß der Hebering­schraube bereits bei einer Temperatur von etwa 95°C anspricht, liegt die Entzündungstemperatur der Ausstoßladung im Bereich um 130°C. Trotzdem kam es bei Brand oder starker Sonnenein­strahlung trotz rechtzeitig betätigter Schmelzsicherung zum unbeabsichtigten Ausstoß: Die Scheibe hatte sich nämlich ge­gen die ebene Rückseitenfläche der Heberingschraube gelegt, und der Durchtrittsquerschnitt des Zündkanals reichte nicht aus, um einen schädlichen Innendruck zu verhindern.While the fuse in a passage of the lifting ring screw already responds at a temperature of approximately 95 ° C, the ignition temperature of the discharge charge is in the region of 130 ° C. In spite of this, in the event of fire or strong sunlight, the fuse was actuated in time, despite the fact that the fuse had been actuated in time: the washer had come to rest against the flat rear surface of the lifting ring screw, and the passage cross-section of the ignition channel was not sufficient to prevent damaging internal pressure.

Der Erfindung liegt die Aufgabe zugrunde, ein gattungsglei­ ches Nutzlastgeschoß zu schaffen, bei welchem ein Außstoß der Submunition beim unbezünderten Nutzlastgeschoß mit Sicherheit vermieden wird.The invention has for its object a generic to create a payload storey, in which an ejection of the submunition in the unignited payload storey is avoided with certainty.

Gelöst wird diese Aufgabe nach der Lehre des Patentanspruchs 1 mit den im kennzeichnenden Teil angegebenen erfinderischen Merkmalen.This object is achieved according to the teaching of claim 1 with the inventive features specified in the characterizing part.

Die Erfindung wird nachstehend anhand eines in der Zeichnung dargestellten bevorzugten Ausführungsbeispiels näher erläutert.The invention is explained below with reference to a preferred embodiment shown in the drawing.

Es zeigen, jeweils in einem längsaxialen Schnitt,

  • Fig. 1 ein Nutzlastgeschoß mit der Erfindung und
  • Fig. 2 einen zum Verdeutlichen von Einzelheiten vergrößert dargestellten Vorderteil des Gegenstands nach Fig. 1.
They show, each in a longitudinal axial section,
  • Fig. 1 is a payload floor with the invention and
  • FIG. 2 shows a front part of the object according to FIG. 1, shown enlarged to clarify details.

Gemäß Fig. 1 weist ein Nutzlastgeschoß eine Trägerhülle 10 mit einem Ogivalbereich 12, einer den Innenraum in einen vorderen Druckraum 54 und einen Submunition 50 enthaltenden Lastenraum 46 unterteilenden Ausstoßscheibe 52 und einen absprengbaren Teil 48 auf. Überschreitet der sich nach dem Initiieren einer Ausstoßladung 18 im Druckraum 54 aufbauende Innendruck einen vorgegebenen Wert, dann wird über die Ausstoßscheibe 52 und die durch die Submunition 50 gebildete Säule die eine beab­sichtigte Scherwirkung verursachende Kraft unmittelbar auf den Teil 48 zum Ausstoßen der Submunition 50 übertragen.1, a payload projectile has a carrier casing 10 with an oval region 12, an ejection disk 52 dividing the interior space into a front pressure chamber 54 and a load chamber 46 containing submunition 50, and a detachable part 48. If the internal pressure building up in the pressure chamber 54 after the initiation of an ejection charge 18 exceeds a predetermined value, then the force causing an intended shear effect is transmitted directly to the part 48 for ejecting the submunition 50 via the ejection disk 52 and the column formed by the submunition 50.

Fig. 2 zeigt im Druckraum 54 die Aufnahme 14 mit einer Hülse 16 für die Ausstoßladung 18, einen Sitz 20 für die Scheibe 22 mit deren zentraler Bohrung (Zündkanal) 24 einem Raum 26 für einen gestrichelt eingezeichneten Zünder 27 sowie eine Bohrung mit Innengewinde 28 für eine Heberingschraube 30. Letztere weist einen Körper mit Außengewinde 32 und eine nicht näher bezeichnete Fläche zum Fixieren einer Dichtung 33 auf. In der Rückseitenfläche 34 der Heberingschraube 30 befindet sich ein Durchlaß 36 zur Schmelzsicherung 38. Der Raum 26 für den Zünder 27 weist einen größeren lichten Durchmesser auf als der Sitz 20 für die Scheibe 22. Wird in Abwesenheit des Zünders 27 die Ausstoßladung 18 ungewollterweise initiiert, kann ein sich in der Hülse 16 aufbauender Druck die Scheibe 22 unter Überwindung eines vorgegebenen mechanischen Wider­standes aus ihrem Sitz 20 in Richtung der Geschoßlängsachse A gegen die Rückseitenfläche 34 der Heberingschraube 30 be­wegen. (Siehe strichpunktierte Darstellung der Scheibe 22). Durch Vorsprünge 40 auf der Rückseitenfläche 34 wird gewähr­leistet, daß die heißen Gase nicht nur durch den Zündkanal 24, sondern auch um die Scheibe 22 herum, wie durch Strömungs­pfeile 56 und 58 angedeutet, strömen und durch einen von der Schmelzsicherung 38 (wie nicht dargestellt) freigegebenen Durchlaß 35 aus­treten können, ohne daß sich im Druckraum 54 ein zum Ausstoß der Submuni­tion 50 führender Innendruck aufbauen kann. Mit der Erfindung läßt sich die Sicherheit gegen unbeabsichtigten Ausstoß der Submunition bei einem Nutzlastgeschoß nicht nur auf sehr einfache Weise gewähr­leisten, sondern es bedarf auch beim Bezündern des Nutzlast­geschosses keiner zusätzlichen Manipulation, welche - vor allem unter Einsatzbedingungen - nicht nur zu einem Zeitver­lust führte, sondern auch vergessen werden könnte.Fig. 2 shows in the pressure chamber 54, the receptacle 14 with a sleeve 16 for the ejection charge 18, a seat 20 for the disc 22 with its central bore (ignition channel) 24, a space 26 for a detonator 27 shown in dashed lines and a bore with an internal thread 28 for a lifting ring screw 30. The latter has a body with an external thread 32 and an unspecified surface for fixing a seal 33. Located in the rear surface 34 of the lifting ring screw 30 there is a passage 36 to the fuse 38. The space 26 for the igniter 27 has a larger clear diameter than the seat 20 for the disk 22. If the discharge charge 18 is initiated unintentionally in the absence of the igniter 27, a build-up in the sleeve 16 can occur Pressure, while overcoming a predetermined mechanical resistance, move the disk 22 out of its seat 20 in the direction of the longitudinal axis A of the floor against the rear surface 34 of the lifting ring screw 30. (See dash-dot representation of disc 22). Protrusions 40 on the rear surface 34 ensure that the hot gases flow not only through the ignition channel 24, but also around the disk 22, as indicated by flow arrows 56 and 58, and through one of the fuse 38 (as not shown) released passage 35 can emerge without an internal pressure leading to the ejection of the submunition 50 being able to build up in the pressure chamber 54. With the invention, the security against unintentional ejection of the submunition in a payload projectile can not only be ensured in a very simple manner, but also no additional manipulation is required when the payload projectile is fired, which - especially under operating conditions - not only resulted in a loss of time but also could also be forgotten.

Claims (3)

1. Nutzlastgeschoß mit einer Trägerhülle für ausstoßbare sprengwirksame Submunition mit folgenden Merkmalen:
a) im Ogivalbereich (12) des Nutzlastgeschosses weist des­sen Trägerhülle (10) eine im wesentlichen kreiszylind­rische Aufnahme (14) für eine Ausstoßladung (18), eine zentral durchbohrte Scheibe (22) und einen Zünder (27) um Initiieren der Ausstoßladung (18) auf, welche spitzenseitig von einer eine Schmelzsicherung (38) aufweisenden und eine Dichtung (33) fixierenden Hebe­ringschraube (30) verschließbar ist,
b) unmittelbar vor der Ausstoßladung (18) ist ein Sitz (20) für die Scheibe (22) vorgesehen,
c) von der Vorderfläche (23) der Scheibe (22) und einer Rückseitenfläche (34) der Heberingschraube (30) mit einem Durchlaß (36) zur Schmelzsicherung (38) wird rück- bzw. vorderseitig der für den Zünder (27) vorge­sehene und für letzteren bei depotseitiger Lagerung oder Transport des Nutzlastgeschosses freigehaltene Raum (26) begrenzt,
d) der Raum (26) ist gegenüber dem Sitz (20) für die Scheibe (22) zu deren ungehinderter Axialbewegung in Richtung auf die Rückseitenfläche (34) der Hebering­schraube (30) radial erweitert und
e) in dem Raum (26) oder seiner unmittelbaren Nachbar­schaft sind Mittel vorgesehen, durch welche auch nach der vorerwähnten Axialbewegung der Scheibe (22) ein gegenüber dem durch die Bohrung (24) gegebenen ver­größerter Durchtrittsquerschnitt zwischen der Ausstoß­ladung (18) und einem von der Schmelzsicherung (38) freigegebenen Durchlaß (35) gewährleistet wird,
wobei der Oberbegriff die Merkmale a) bis c) einschließt, und die Merkmale d) und e) den kennzeichnenden Teil bil­den.1. Payload projectile with a carrier shell for ejectable explosive submunition with the following features:
a) in the oval area (12) of the payload projectile, its carrier shell (10) has a substantially circular cylindrical receptacle (14) for an ejection charge (18), a centrally pierced disc (22) and a detonator (27) to initiate the ejection charge (18) which can be closed on the tip side by a lifting ring screw (30) which has a fuse (38) and fixes a seal (33),
b) a seat (20) for the disc (22) is provided directly in front of the ejection charge (18),
c) from the front surface (23) of the disc (22) and a rear surface (34) of the lifting ring screw (30) with a passage (36) for the fuse (38) on the back or front of the provided for the igniter (27) and limited space (26) for the latter when storing or transporting the payload storey on the depot side,
d) the space (26) is radially expanded relative to the seat (20) for the washer (22) for its unimpeded axial movement in the direction of the rear surface (34) of the lifting ring screw (30)
e) means are provided in the space (26) or its immediate vicinity, by means of which, even after the above-mentioned axial movement of the disk (22), an enlarged cross-section between the ejection charge (18) and one of the openings compared to the bore (24) Fuse (38) released passage (35) is guaranteed
the preamble includes features a) to c), and features d) and e) form the characterizing part. 2. Nutzlastgeschoß nach Anspruch 1, dadurch ge­kennzeichnet, daß die Scheibe (22) zum Ver­lassen ihres Sitzes (20) einen vorgebbaren mechanischen Widerstand zu überwinden hat.2. Payload projectile according to claim 1, characterized in that the disc (22) to leave its seat (20) has to overcome a predetermined mechanical resistance. 3. Nutzlastgeschoß nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Mittel zum Gewähr­leisten des vergrößerten Durchtrittsquerschnitts als Vor­sprünge (40) auf der Rückseitenfläche (34) der Hebering­schraube (30) ausgebildet sind.3. Payload projectile according to claim 1 or 2, characterized in that the means for ensuring the enlarged passage cross section are designed as projections (40) on the rear surface (34) of the lifting ring screw (30).
EP87101302A 1986-05-15 1987-01-30 Load carrying missile for ejectable sub-ammunition Expired - Lifetime EP0256199B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863616410 DE3616410A1 (en) 1986-05-15 1986-05-15 PAYLOAD FLOOR FOR EXHAUSTABLE SUBMUNITION
DE3616410 1986-05-15

Publications (3)

Publication Number Publication Date
EP0256199A2 true EP0256199A2 (en) 1988-02-24
EP0256199A3 EP0256199A3 (en) 1989-10-18
EP0256199B1 EP0256199B1 (en) 1991-10-09

Family

ID=6300915

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101302A Expired - Lifetime EP0256199B1 (en) 1986-05-15 1987-01-30 Load carrying missile for ejectable sub-ammunition

Country Status (5)

Country Link
US (1) US4727812A (en)
EP (1) EP0256199B1 (en)
DE (2) DE3616410A1 (en)
DK (1) DK33887A (en)
NO (1) NO870418L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3835150A1 (en) * 1988-10-15 1990-04-26 Diehl Gmbh & Co FLOOR WITH AN EXHAUST
DE10039988B4 (en) * 2000-08-16 2006-12-14 Rheinmetall Waffe Munition Gmbh Ejector for ejecting submunitions from a projectile
US6752085B2 (en) * 2002-05-06 2004-06-22 Lockheed Martin Corporation Method and apparatus for releasably attaching a closure plate to a casing
FI122080B (en) * 2010-02-19 2011-08-15 Patria Land & Armament Oy Lifting device for projectiles
CN105043172B (en) * 2015-06-04 2016-09-14 西安近代化学研究所 A kind of liquid phase charge warhead internal stresses release device
KR101929667B1 (en) * 2017-06-14 2018-12-14 (주)수아 Lifting Plug for High Explosives Having Improved Insensitive Performance

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173364A (en) * 1962-03-24 1965-03-16 Military Training Device Compa Ammuntion safety device
US3665857A (en) * 1970-11-23 1972-05-30 Us Army Base ejecting ordnance projectile
DE2131748A1 (en) * 1971-06-25 1972-12-28 Foerenade Fabriksverken Protection device for grenades

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173364A (en) * 1962-03-24 1965-03-16 Military Training Device Compa Ammuntion safety device
US3665857A (en) * 1970-11-23 1972-05-30 Us Army Base ejecting ordnance projectile
DE2131748A1 (en) * 1971-06-25 1972-12-28 Foerenade Fabriksverken Protection device for grenades

Also Published As

Publication number Publication date
DK33887A (en) 1987-11-16
DE3616410A1 (en) 1987-11-19
NO870418D0 (en) 1987-02-03
EP0256199B1 (en) 1991-10-09
EP0256199A3 (en) 1989-10-18
US4727812A (en) 1988-03-01
DE3773580D1 (en) 1991-11-14
DK33887D0 (en) 1987-01-21
NO870418L (en) 1987-11-16

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