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EP1241435B1 - Projectile et son procédé de fabrication - Google Patents

Projectile et son procédé de fabrication Download PDF

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Publication number
EP1241435B1
EP1241435B1 EP02002216A EP02002216A EP1241435B1 EP 1241435 B1 EP1241435 B1 EP 1241435B1 EP 02002216 A EP02002216 A EP 02002216A EP 02002216 A EP02002216 A EP 02002216A EP 1241435 B1 EP1241435 B1 EP 1241435B1
Authority
EP
European Patent Office
Prior art keywords
projectile
cover
receiver coil
energy source
logic module
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
EP02002216A
Other languages
German (de)
English (en)
Other versions
EP1241435A1 (fr
Inventor
Peter Ettmüller
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.)
RWM Schweiz AG
Original Assignee
RWM Schweiz AG
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 RWM Schweiz AG filed Critical RWM Schweiz AG
Publication of EP1241435A1 publication Critical patent/EP1241435A1/fr
Application granted granted Critical
Publication of EP1241435B1 publication Critical patent/EP1241435B1/fr
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
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/006—Mounting of sensors, antennas or target trackers on projectiles
    • 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
    • F42B12/72—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
    • F42B12/76—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material of the casing
    • 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

Definitions

  • the invention relates to a projectile according to the preamble of claim 1 and a method for its production according to the preamble of claim 15 or 18th
  • Projectiles of this type are intended to disassemble or detonate in flight and are therefore also referred to as 'Air Bursting Ammunition', abbreviated ABM.
  • ABM Air Bursting Ammunition'
  • projectiles In flight detonating projectiles have time fuze, detonator or proximity detonator. The location or the time of the detonation should be selectable or adjustable.
  • newer projectiles setting the timing of detonation or temping is not done manually by manipulation of the projectile before loading, but automatically, either at the feeder or in the chamber or by inductive signal transmission at the gun muzzle at launch.
  • the projectiles have special devices for receiving the signals and via an energy source for operating an ignitor logic and for delivering the electrical energy needed in the projectile to trigger the detonation.
  • the active mass brought to the detonation site should be as large as possible and the projectile parts resulting from the detonation should have the highest possible speed;
  • the programmable device with the power source and the logic module must operate reliably and accurately.
  • the non-effective mass to which the programmable device, in particular the receiving coil, the energy source and the logic module belong, should be as small as possible.
  • the programmable device has delicate and slightly vulnerable parts which must be well protected to withstand the large forces caused by the large accelerations.
  • the projectile should be able to be produced efficiently, if possible from individually producible units, which are manufactured in parallel and can then be assembled in a simple manner; Consequently, a modular structure is desired.
  • the new projectile has a jacket, which is made of a plastic at least in the rear region of the projectile.
  • the non-effective mass of the projectile is lower than that of a projectile with a metallic sheath, and surface treatments, as required in conventional metallic sheaths omitted.
  • the shaping of the plastic can be done by a cutting or non-cutting process.
  • the shaping of the plastic for the shell takes place by a non-cutting process such as pressing or spraying;
  • a non-cutting process such as pressing or spraying;
  • Such operations are rational, especially in high volumes, as they are common in the production of projectiles, because then the cost of the mold practically do not matter.
  • a receiving coil For receiving external signals, a receiving coil is arranged. Since this must be protected from pressure, it is advantageously not arranged on the circumference of the projectile but in the interior of the projectile. This requires that the plastic from which the sheath is made exerts no shielding effect against electromagnetic waves or signals at least in the region of the receiving coil.
  • the arrangement of the receiving coil in the interior instead of on the exterior of the shell it is unnecessary to provide a complex Schutzumwicklung, as it is necessary for a arranged in a conventional manner on the outside of the shell receiving coil. It avoids, even better than with the protective wrapping, that the conductors forming the receiving coil deform; This avoids interference of the signals to be received due to conductor deformation and reduces the risk of short circuits. Furthermore, the risk of moisture ingress is virtually eliminated. It is also essential that the circumferential acceleration and thus the forces acting on the receiver coil are reduced because of the smaller distance between the receiver coil and the projectile longitudinal axis.
  • the receiver coil can thereby be manufactured as a unit and then mounted with the power source and the logic module.
  • the required energy can be generated externally and transmitted to the projectile:
  • an internal energy source for example with a shock generator.
  • a particularly advantageous projectile according to the invention is designed so that its active mass, in particular explosive and, if appropriate, active body, are arranged in the front region of the projectile; This results in a good effect, as set out below: After detonation, the velocity vectors of the resulting active bodies add up to the velocity of the projectile, and the sum of the velocities is greater on average of all resulting parts projectiles with front-mounted active mass; In addition, for example, in house combat, by detonating the projectiles in front of the target an increase in the hit area can be achieved, which is considerable in comparison with conventional ammunition or ABM with a detonator.
  • the projectile 10.1 shown in FIG. 1 with the profile longitudinal axis A has a projectile base 12 made of a suitable metal and a jacket 14 , which consists at least in the rear region, but preferably as a whole of a suitable plastic.
  • the jacket 14 is made by a compression or injection molding process, but could alternatively be formed by machining.
  • the projectile base 12 has grooves 12B on the outer surface of its forwardly projecting substantially hollow-cylindrical bottom region 12A .
  • the grooves 12B are overmolded with the material of the jacket 14 so that the forwardly projecting bottom portion 12A is connected to a rearwardly projecting skirt portion 14A .
  • the plastic used to produce the jacket 14 may contain fillers, but must at least in the receiving coil of a material that does not form a shield against electromagnetic waves or signals. Instead of a plastic other materials come into question that exert no shielding effect against electromagnetic waves or signals, such as ceramic or glass.
  • an integral guide band 15 is formed on the outer contour of the shell 14; This eliminates the production and assembly of a separate, such as metallic, guide tape.
  • a receiving coil 16 is arranged as part of the programmable device, whose winding 18 is mounted on a coil former 20, preferably made of a plastic.
  • the receiver coil 16 is conductively connected to an energy source or energy storage unit 22 and a logic module 23 .
  • a conductor does not have to be passed through a narrow bore, as is the case with conventional projectiles, but the connection can be due to the centric arrangement of both the receiver coil 16 and the energy source or energy source Energy storage unit 22 as well as the logic module 23 are created in a simple manner.
  • the conductive connection including the actual contacting can be done by a soldering.
  • an inserted intermediate part can be used, wherein the contact is made by means of a conductive adhesive. Particularly easy to manufacture, but less secure is to bring about the contact only by a pressure. Elaborate in the production of the items is a plug connection, which, however, ensures great safety and is easy to assemble.
  • the projectile 10.1 according to FIG. 1 described above is produced as follows:
  • the jacket 14 is produced by spraying;
  • the projectile base 12 is molded with the plastic of the shell 14 and the rear.
  • the energy source or energy storage unit 22, the logic module 23 and the receiver coil 16 are then introduced from the front.
  • Fig. 2 shows another projectile 10.2 according to the invention.
  • the projectile 10.2 differs only slightly from the projectile 10.1, therefore, only the details deviating from FIG. 1 will be described below, and the individual constructive elements will be described in FIG. 2 and later also in FIG. 3 uses the same reference numerals as in FIG. 1.
  • the inner diameter of the rearwardly projecting jacket region 14A is greater than the outer diameter of the coil 16.
  • the jacket 14 or the tail is produced by non-cutting or by cutting shaping, wherein the rearwardly projecting jacket region 14A is provided with an internal thread 14B .
  • the projecting bottom portion 12A of the projectile bottom is not provided with the ribs 12A but with an external thread 12B complementary to the internal thread 14B .
  • the receiver coil 16, the energy source or energy storage unit 22 and the logic module 23 are produced individually, attached to the projectile base 12 and contacted. Finally, this resulting component is introduced from behind into the shell 14, wherein the connection of the projectile base 12 and jacket 14 by screwing the external thread into the internal thread 12B comes 14B to pass.
  • a third projectile 10.3 is shown in FIG .
  • projectile 10.3 the same material is used for the projectile base 12 as for the jacket 14;
  • the projectile base 12 and the jacket 14 are produced integrally in a press or injection molding process as a press or injection part 13 .
  • the production of the receiving coil 16, the energy source or energy storage unit 22 and the logic module 23 is carried out separately, then these three components of the projectile 10.3 in the same manner as described with respect to the projectile 10.1 of Fig. 1 , assembled into a component and this component mounted from the front in the press or injection molded part 13 .
  • the receiving coil 16 the energy source or energy storage unit 22 and the logic module 23 are arranged in the rear projectile area, so that the front projectile area is free for receiving an active mass, not shown.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Press Drives And Press Lines (AREA)
  • Glass Compositions (AREA)

Claims (18)

  1. Projectile (10.1, 10.2, 10.3) comprenant
    - une enveloppe (14),
    - un fond de projectile (12) fermant l'enveloppe à l'arrière (14),
    - une bobine réceptrice (16) servant à recevoir des signaux électromagnétiques,
    - une source d'énergie (22) se trouvant en contact avec la bobine réceptrice (16) et
    - un module logique (23),
    caractérisé en ce que
    l'enveloppe (14) est fabriquée dans une matière synthétique, au moins dans sa zone arrière.
  2. Projectile (10.1, 10.2, 10.3) conforme à la revendication 1,
    caractérisé en ce que
    l'enveloppe (14) est entièrement fabriquée dans une matière synthétique.
  3. Projectile (10.2) conforme à l'une des revendications 1 ou 2,
    caractérisé en ce que
    l'enveloppe (14) est fabriquée selon un procédé de façonnage par enlèvement de copeaux.
  4. Projectile (10.1) conforme à l'une des revendications 1 ou 2,
    caractérisé en ce que
    l'enveloppe (14) est réalisée selon un procédé de façonnage sans enlèvement de copeaux.
  5. Projectile (10.1) conforme à la revendication 4,
    caractérisé en ce que
    le fond du projectile (12) est raccordé à l'enveloppe (14) par le matériau de l'enveloppe (14), fabriqué par façonnage sans enlèvement de copeaux.
  6. Projectile (10.2) conforme à l'une des revendications 1 à 5,
    caractérisé en ce que
    le fond du projectile (12) est raccordé à l'enveloppe (14) par vissage, enfichage, collage, soudage ou brasage.
  7. Projectile (10.3) conforme à la revendication 4,
    caractérisé en ce que
    le fond du projectile (12) est fabriqué dans le même matériau synthétique que l'enveloppe (14).
  8. Projectile (10.3) conforme à la revendication 7,
    caractérisé en ce que
    le fond du projectile (12) et l'enveloppe (14) sont fabriqués sous forme de pièces intégrales moulées par pression ou par injection (13).
  9. Projectile (10.1, 10.2, 10.3) conforme à l'une des revendications 1 à 8,
    caractérisé en ce que
    une bande de guidage intégrale (15) est façonnée sur l'enveloppe 14.
  10. Projectile (10.1, 10.2, 10.3) conforme à l'une des revendications 1 à 9, caractérisé en ce que,
    - la bobine réceptrice (16) est placée à l'intérieur de l'enveloppe (14),
    - et en ce que le matériau synthétique dans lequel l'enveloppe (14) est fabriquée ne doit pas faire écran, tout au moins dans la zone de la bobine réceptrice (16), aux ondes électromagnétiques.
  11. Projectile (10.1, 10.2, 10.3) conforme à l'une des revendications 1 à 10,
    caractérisé en ce que
    la bobine réceptrice (16) comporte un bobinage (18) installé sur un élément d'enroulement (20).
  12. Projectile (10.1, 10.2, 10.3) conforme à l'une des revendications 1 à 11,
    caractérisé en ce que
    la source d'énergie (22) et le module logique (23) sont placés à l'intérieur de l'enveloppe (14) et sont contigus à la bobine réceptrice (16).
  13. Projectile (10.1, 10.2, 10.3) conforme à l'une des revendications 1 à 12,
    caractérisé en ce que
    la mise en contact du bobinage (18) de la bobine réceptrice (16) avec la source d'énergie (22) se fait par brasage, collage avec un adhésif conducteur ou pressage, ou encore au moyen d'une connexion par enfichage.
  14. Projectile (10.1, 10.2, 10.3) conforme à l'une des revendications 1 à 13,
    caractérisé en ce que
    la bobine réceptrice (16), la source d'énergie et le module logique (23) sont placés dans la zone arrière du projectile (10).
  15. Procédé destiné à la fabrication d'un projectile (10.1, 10.3) comportant une enveloppe (14), un fond de projectile (12) fermant l'enveloppe (14) à l'arrière, une bobine réceptrice (16) servant à recevoir des signaux, une source d'énergie (22) se trouvant en contact avec la bobine réceptrice (16) et un module logique (23), la bobine réceptrice (16) et/ou la source d'énergie (22) et/ou le module logique (23) étant de préférence placés à proximité de l'axe longitudinal du projectile et de préférence dans la zone arrière du projectile, procédé au cours duquel
    - le fond du projectile (12) est fabriqué,
    - l'enveloppe (14) est fabriquée,
    - l'enveloppe (14) est assemblée avec le fond du projectile (12), et caractérisé en ce que
    - l'enveloppe (14) est fabriquée dans une matière synthétique,
    - indépendamment de la fabrication et de l'assemblage de l'enveloppe (14) et du fond du projectile (12) sont fabriqués la bobine réceptrice (16), par création d'un bobinage (18) sur un élément d'enroulement (20), ainsi que la source d'énergie (22) et le module logique (23), et en ce que
    - la bobine réceptrice (16), la source d'énergie (22) et le module logique (23) sont ensuite assemblés.
  16. Procédé conforme à la revendication 15,
    caractérisé en ce que
    l'enveloppe (14) est fabriquée selon un procédé de façonnage sans enlèvement de copeaux et, à cette occasion, raccordée au fond du projectile (12).
  17. Procédé conforme à la revendication 16,
    caractérisé en ce que
    l'enveloppe (14) et le fond du projectile (12) sont fabriqués dans le même matériau sous forme d'une pièce intégrale moulée par pression ou par injection (13).
  18. Procédé destiné à la fabrication d'un projectile (10.2) comportant
    - une enveloppe (14),
    - un fond de projectile (12) fermant l'enveloppe (14) à l'arrière,
    - une bobine réceptrice (16) servant à recevoir des signaux, et
    - une source d'énergie (22) se trouvant en contact avec la bobine réceptrice (16), et
    - un module logique (23),
    - la bobine réceptrice (16) et/ou la source d'énergie (22) et/ou le module logique (23) étant de préférence placés à proximité de l'axe longitudinal du projectile et de préférence dans la zone arrière du projectile, procédé au cours duquel
    - l'enveloppe (14) et le fond du projectile (12) sont fabriqués,
    - la bobine réceptrice (16), la source d'énergie (22) et le module logique (23) sont assemblés avec le fond du projectile (12) sous forme d'un seul composant (12, 16, 22, 23), puis le composant (12, 16, 22, 23) est mis en place dans l'enveloppe (14), et
    caractérisé en ce que
    l'enveloppe est fabriquée dans une matière synthétique, au moins dans sa zone arrière.
EP02002216A 2001-03-14 2002-01-30 Projectile et son procédé de fabrication Expired - Lifetime EP1241435B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4722001 2001-03-14
CH4722001 2001-03-14

Publications (2)

Publication Number Publication Date
EP1241435A1 EP1241435A1 (fr) 2002-09-18
EP1241435B1 true EP1241435B1 (fr) 2007-01-17

Family

ID=4516032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02002216A Expired - Lifetime EP1241435B1 (fr) 2001-03-14 2002-01-30 Projectile et son procédé de fabrication

Country Status (10)

Country Link
US (2) US6874402B2 (fr)
EP (1) EP1241435B1 (fr)
JP (1) JP4028741B2 (fr)
AT (1) ATE352023T1 (fr)
CA (1) CA2369708C (fr)
DE (1) DE50209260D1 (fr)
ES (1) ES2280440T3 (fr)
NO (1) NO327204B1 (fr)
SG (1) SG118113A1 (fr)
ZA (1) ZA200200942B (fr)

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Publication number Priority date Publication date Assignee Title
US7059234B2 (en) * 2003-05-29 2006-06-13 Natec, Inc. Ammunition articles and method of making ammunition articles
US7640359B1 (en) * 2003-09-19 2009-12-29 At&T Intellectual Property, I, L.P. Method, system and computer program product for facilitating the design and assignment of ethernet VLANs
US7624187B1 (en) * 2003-09-19 2009-11-24 At&T Intellectual Property, I, L.P. Method, system and computer program product for providing Ethernet VLAN capacity requirement estimation
US7819061B2 (en) 2008-09-08 2010-10-26 Raytheon Company Smart fuze guidance system with replaceable fuze module
US20160231095A1 (en) * 2014-12-04 2016-08-11 John M. Storm Limited range lethal ammunition

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Also Published As

Publication number Publication date
US6874402B2 (en) 2005-04-05
US20070017404A1 (en) 2007-01-25
ZA200200942B (en) 2002-08-14
CA2369708A1 (fr) 2002-09-14
ATE352023T1 (de) 2007-02-15
SG118113A1 (en) 2006-01-27
ES2280440T3 (es) 2007-09-16
JP2002318099A (ja) 2002-10-31
US7197981B2 (en) 2007-04-03
JP4028741B2 (ja) 2007-12-26
NO20020520D0 (no) 2002-02-01
NO327204B1 (no) 2009-05-11
EP1241435A1 (fr) 2002-09-18
US20020129727A1 (en) 2002-09-19
CA2369708C (fr) 2006-03-21
NO20020520L (no) 2002-09-16
DE50209260D1 (de) 2007-03-08

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