EP0595173B1 - Obus - Google Patents

Obus Download PDF

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Publication number
EP0595173B1
EP0595173B1 EP93116926A EP93116926A EP0595173B1 EP 0595173 B1 EP0595173 B1 EP 0595173B1 EP 93116926 A EP93116926 A EP 93116926A EP 93116926 A EP93116926 A EP 93116926A EP 0595173 B1 EP0595173 B1 EP 0595173B1
Authority
EP
European Patent Office
Prior art keywords
coating
projectile
projectile according
core
soft rubber
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
EP93116926A
Other languages
German (de)
English (en)
Other versions
EP0595173A1 (fr
Inventor
Koger Gottfried
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.)
Oregon Etablissements fuer Patentverwertung
Original Assignee
Oregon Etablissements fuer Patentverwertung
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 Oregon Etablissements fuer Patentverwertung filed Critical Oregon Etablissements fuer Patentverwertung
Publication of EP0595173A1 publication Critical patent/EP0595173A1/fr
Application granted granted Critical
Publication of EP0595173B1 publication Critical patent/EP0595173B1/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
    • 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
    • F42B12/04—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type
    • F42B12/10—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect of armour-piercing type with shaped or hollow charge
    • F42B12/105—Protruding target distance or stand-off members therefor, e.g. slidably mounted

Definitions

  • the invention relates to a projectile which is intended to be fired from a tubular weapon.
  • grenade cartridges mostly of 40 mm caliber, which are connected to a cartridge case (cartridge) and can be fired from grenade pistols or from launcher are determined by rifles.
  • grenade cartridges e.g. Fragmentation grenades, shaped charge grenades, smoke and / or fire grenades, illuminated grenades, training grenades.
  • the invention is not limited to projectiles with a ground igniter, but can in principle also be implemented for projectiles with a head detonator.
  • Projectiles tend to rebound on impact at flat angles of impact, which can have the effect that the effect of the projectile, for example the detonation of the explosive charge, does not occur on the target object. This deficiency can also be observed on projectiles with a round, for example hemispherical, head part.
  • the object of the invention is to largely prevent the impact effect of the projectile at flat angles of incidence.
  • the head part pointing forward in the firing direction has a stable core which bears a soft rubber-like pad.
  • Bullets generally require a stable headboard.
  • a stable floor hood is the prerequisite for the "stand off", i.e. the distance of the shaped charge cone to the "tip" of the grenade, i.e. to the apex of the storey hood. If this distance becomes smaller (for example due to premature deformation of the projectile hood), the penetration rate decreases.
  • the construction according to the invention now guarantees on the one hand sufficient stability of the head part (due to the stable core), but on the other hand ensures that the projectile is braked ("eraser effect") and the charge is detonated on the spot by the soft rubber-like pad. Bounces are largely avoided even at flat angles of impact (about ⁇ 20 °).
  • the shape of the head part is preferably round, in particular hemispherical.
  • Other round-shaped shapes are, for example, semi-ellipsoids, paraboloid or ogival shapes (rotating surfaces of an ogive).
  • the invention is also applicable to a head part in the shape of a cone or a truncated cone.
  • the stable core which is preferably not a solid core, but a bowl-shaped core, so that the head part is a projectile hood, consists of hard, stiff material either made of metal, for example steel or an aluminum alloy, or of hard plastic, for example thermosets, hard thermoplastics (which show energy-elastic behavior at use temperature and whose shear modulus is usually G> 10 9 Nm -2 ), but also reinforced, eg fiber-reinforced plastics
  • Suitable materials for the soft rubber-like layer are soft rubber-like polymers or polymers with viscoelastic or rubber-elastic behavior. These include e.g. widely meshed elastomers. However, thermoplastic elastomers (also called thermoplastic rubbers) can preferably be used; these are polymers that ideally have a combination of the performance properties of elastomers and the processing properties of thermoplastics.
  • Either the entire head part or the entire projectile hood can be encased in a soft, rubber-like covering, or a partial encasement takes place, e.g. the area of the front end (the "tip") can remain without a support according to the invention.
  • the thickness of the support can preferably be relatively small (for example on the order of 1 to 10 mm).
  • the soft, rubber-like covering thus envelops the core preferably like a hood or forms an outer skin on the core.
  • the good connection between the support and the core can be ensured in various ways.
  • the shape of the support can be connected to the core by friction or a clamp fit, the elastic forces of the rubber-like material of the support acting as a clamping force.
  • Another possibility is to glue the preformed support onto the core using an adhesive.
  • the overlay can also be molded directly onto the core, e.g. by coating the core or, for example, by molding in an injection mold, it being possible to provide a positive anchoring between the support and the core by appropriate design of the core surface (grooves or the like).
  • Fig. 1 shows a partially cut view of a grenade cartridge (without cartridge)
  • Fig. 2 also shows a partially cut view of another embodiment of a grenade cartridge (without cartridge)
  • Fig. 3 shows in longitudinal section a third embodiment of a grenade cartridge (including its cartridge) .
  • the projectile of a grenade cartridge shown in FIG. 1 (the cartridge case or cartridge is not shown) has a projectile body 1 which contains the detonator (in the rear part) and an active filling, for example an explosive charge (which may also be a shaped charge) can), with or without splinter body, or fire, smoke or light trace sets or the like.
  • the front end of the projectile is formed by the hemispherical head part, which consists of a stable core 2 and there is a soft rubber-like pad 3.
  • the projectile body 1 of a grenade cartridge is again provided with a hemispherical head part, the stable core 2 of which carries a soft rubber-like pad.
  • the soft rubber-like pad 3 only partially covers the head part.
  • the apex area (the "tip") has no overlay.
  • the recess of the apex area from the casing does not interfere with the function, because the support according to the invention is intended to be effective at flat angles of incidence, where the bullet does not come into contact with the target medium in the apex area.
  • the embodiment according to FIG. 3 also relates to a grenade cartridge, which is now shown together with the cartridge 5, in which the propellant charge container 6 with the propellant charge is located.
  • Inside the projectile body 1 there is in the rear part of the detonators 7 and in the front part a hollow charge 8 which is surrounded by a splinter body 9.
  • the projectile hood consists of a bowl-shaped stable core 2, which essentially has the shape of a truncated cone closed at the front and serves as a supporting element (supporting cone) for the soft, rubber-like support 3.
  • Edition 3 If it consists of a thermoplastic elastomer, for example, it can be molded onto the core 2 in an injection molding tool, groove-shaped depressions 10 arranged in the core surface, into which the material of the support 3 engages, ensure good interlocking between the core 2 and support 3. On the support 3, a threaded ring 11 is also formed, which serves to connect the hood with the projectile body 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
  • Lubricants (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Printing Plates And Materials Therefor (AREA)

Claims (12)

  1. Projectile caractérisé en ce que la partie de tête dirigée vers l'avant dans le sens de lancement comporte un noyau stable (2) qui porte un revêtement caoutchouteux souple (3).
  2. Projectile selon la revendication 1, caractérisé en ce que le noyau stable (2) s'étend au moins approximativement jusqu'à l'extrémité avant de la partie de tête.
  3. Projectile selon la revendication 1 ou 2, caractérisé en ce que le noyau stable (2) a la forme d'une coquille.
  4. Projectile selon l'une des revendications 1 à 3, caractérisé en ce que le revêtement caoutchouteux souple (3) enveloppe le noyau stable (2) de la partie de tête au moins en partie comme un capot.
  5. Projectile selon l'une des revendications 1 à 4, caractérisé en ce que le revêtement caoutchouteux souple (3) enveloppe entièrement le noyau stable (2).
  6. Projectile selon l'une des revendications 1 à 4, caractérisé en ce que le revêtement caoutchouteux souple (3) enveloppe partiellement le noyau stable (2), la zone de l'extrémité avant de la partie de tête restant de préférence sans revêtement.
  7. Projectile selon l'une des revendications 1 à 6, caractérisé en ce que la surface du noyau (2) qui porte le revêtement (3) comporte des creux (10) dans lesquels entre le matériau du revêtement (3).
  8. Projectile selon l'une des revendications 1 à 7, caractérisé en ce que la partie de tête présente au moins approximativement la forme extérieure d'un hémisphère.
  9. Projectile selon l'une des revendications 1 à 8, caractérisé en ce que le noyau stable (2) est en métal.
  10. Projectile selon l'une des revendications 1 à 8, caractérisé en ce que le noyau stable (2) est en matière plastique dure.
  11. Projectile selon l'une des revendications 1 à 10, caractérisé en ce que le revêtement caoutchouteux souple (3) est en élastomère réticulé à larges mailles.
  12. Projectile selon l'une des revendications 1 à 10, caractérisé en ce que le revêtement caoutchouteux souple (3) est en élastomère thermoplastique (caoutchouc thermoplastique).
EP93116926A 1992-10-27 1993-10-20 Obus Expired - Lifetime EP0595173B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0211592A AT397867B (de) 1992-10-27 1992-10-27 Geschoss
AT2115/92 1992-10-27

Publications (2)

Publication Number Publication Date
EP0595173A1 EP0595173A1 (fr) 1994-05-04
EP0595173B1 true EP0595173B1 (fr) 1996-06-19

Family

ID=3528098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93116926A Expired - Lifetime EP0595173B1 (fr) 1992-10-27 1993-10-20 Obus

Country Status (4)

Country Link
EP (1) EP0595173B1 (fr)
AT (2) AT397867B (fr)
DE (1) DE59303009D1 (fr)
ES (1) ES2056758T1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH696914A5 (de) * 2003-11-11 2008-01-31 Saab Bofors Dynamics Switzerland Ltd Aufschlagteil an einem Geschoss.
US7273010B2 (en) 2004-11-03 2007-09-25 Saab Bofors Dynamics Switzerland Ltd. Impact part of a projectile
WO2006092637A2 (fr) * 2005-03-03 2006-09-08 Hellenic Defence Systems S.A. Grenade, 40mm x 53. grande vitesse, double usage

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL183526B (nl) * 1952-12-30 Bergwerksverband Gmbh Werkwijze voor het reinigen van zwelingsteer.
DE2361954A1 (de) * 1973-12-13 1975-06-19 Krauss Maffei Ag Geschoss
DE3126399A1 (de) * 1981-07-04 1983-01-13 Rheinmetall GmbH, 4000 Düsseldorf Panzerbrechendes geschoss

Also Published As

Publication number Publication date
ATE139621T1 (de) 1996-07-15
AT397867B (de) 1994-07-25
ES2056758T1 (es) 1994-10-16
ATA211592A (de) 1993-11-15
DE59303009D1 (de) 1996-07-25
EP0595173A1 (fr) 1994-05-04

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