EP0377433A1 - Cartouche d'exercice pour armes de défense sans recul - Google Patents

Cartouche d'exercice pour armes de défense sans recul Download PDF

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Publication number
EP0377433A1
EP0377433A1 EP90100014A EP90100014A EP0377433A1 EP 0377433 A1 EP0377433 A1 EP 0377433A1 EP 90100014 A EP90100014 A EP 90100014A EP 90100014 A EP90100014 A EP 90100014A EP 0377433 A1 EP0377433 A1 EP 0377433A1
Authority
EP
European Patent Office
Prior art keywords
tail unit
practice
projectile
cartridge according
cartridge
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.)
Withdrawn
Application number
EP90100014A
Other languages
German (de)
English (en)
Inventor
Friedmar Hinzmann
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.)
Piepenbrock Pyrotechnik GmbH
Original Assignee
Piepenbrock Pyrotechnik 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
Priority claimed from DE19893900111 external-priority patent/DE3900111A1/de
Priority claimed from DE19893900110 external-priority patent/DE3900110A1/de
Application filed by Piepenbrock Pyrotechnik GmbH filed Critical Piepenbrock Pyrotechnik GmbH
Publication of EP0377433A1 publication Critical patent/EP0377433A1/fr
Withdrawn legal-status Critical Current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
    • F42B10/00—Means for influencing, e.g. improving, the aerodynamic properties of projectiles or missiles; Arrangements on projectiles or missiles for stabilising, steering, range-reducing, range-increasing or fall-retarding
    • F42B10/02—Stabilising arrangements
    • F42B10/04—Stabilising arrangements using fixed fins
    • F42B10/06—Tail fins
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B5/00—Cartridge ammunition, e.g. separately-loaded propellant charges
    • F42B5/02—Cartridges, i.e. cases with charge and missile
    • F42B5/05—Cartridges, i.e. cases with charge and missile for recoilless guns
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B8/00—Practice or training ammunition
    • F42B8/12—Projectiles or missiles

Definitions

  • the present invention relates to a training cartridge for recoil-free defense weapons, such as a karoka. It is based on a state of the art, e.g. is described in DE-AS 20 59 202.
  • a practice cartridge consists of a propellant charge sleeve for accommodating a propellant charge and a sub-caliber projectile which is fired from a sub-caliber barrel accommodated in a dummy storey, the dummy projectile being inserted into the barrel muzzle with its hollow shaft coaxially surrounding the sub-caliber barrel and by means of an ejection of the dummy projectile effecting and the firing bang simulating ejection charge is provided, which is accommodated in an ejection charge sleeve connected to the bottom of the propellant charge sleeve and guided in the barrel and the powder charge of which is ignited laterally through the sleeve wall in the region of an annular groove-shaped cross-sectional weakening which allows the ignition beam to pass through
  • the insulation consists of iron powder compacted by sintering or pressing to form perforated disks, which has the advantage of higher mass and thus smaller construction and significantly better degradability on the ground than plastic granules which are also used.
  • the perforated disks should be destroyed when fired and fall to the ground in small pieces.
  • the present invention has therefore set itself the task of creating an inexpensive practice cartridge with improved flight characteristics of the projectile and increased accuracy.
  • a practice cartridge for recoil-free defense weapons consisting of a high-weight projectile head housed in a cartridge case, preferably with a disassembly core and a tail unit, as well as loading and unloading, a black powder set arranged in the rear part of the cartridge and then high-energy, preferably made of nitrocellulose A set with a dam and a cube that closes off to the outside, the dam being an iron powder spill and a damping element being arranged between the iron powder spill and the pellet.
  • a further decisive improvement results in combination with the fact that the projectile head and tail unit are arranged with an intermediate piece tapering towards the tail unit, the intermediate piece and tail unit being made of light material such as plastic or preferably aluminum and that the tail unit is of the same caliber.
  • the damping element should be soft, e.g. also a disc made of sufficiently thick corrugated cardboard in question.
  • an insert made of foam plastic is preferred, which in particular can also be foamed onto the cumin or glued to it, in order to have to remove less lying parts after the shot.
  • the iron powder on the other hand, rots quickly and is not harmful to the environment.
  • the empennage itself is preferably guided in the cartridge case in a sliding fit, which enables a precise launch that is free of tilting moment until it emerges from the case.
  • the front step of the projectile head can be a flat surface, but this requires a relatively high face resistance.
  • the cone itself is preferably also truncated.
  • the guide is particularly advantageous, i.e. inexpensively made of extruded aluminum or similar ductile material or of plastic.
  • the projectile is preferably constructed in three parts and consists of the projectile head, which can be solid or hollow and filled with metal powder or ceramic powder and an intermediate piece tapering towards the tail unit, as well as the subsequent tail unit support, all parts being screwed together.
  • the tail unit has a backward-open bowl to accommodate the tracer. If the tail unit is designed as a plastic part, it may be necessary to place it in a metal insert.
  • a construction has proven to be particularly flight-stable and accurate, in which the width of the ring surface is approximately 0.1 to 0.2 times the length of the projectile and 3.8 to 5.2 times the diameter of the projectile head or the caliber is, the mass of the projectile head about 84 to 94% of the total weight and its length or the length of the fragmentation charge 40-60% of the total length.
  • the empennage fins preferably have outer axially parallel edges which rest against the inner wall of the cartridge and guide the projectile as it emerges from it. With the number of fins the accuracy of guidance also increases. On the other hand, however, a certain opening of the fins between one another is also necessary for a perfect flow. An eight-tail empennage has proven particularly useful for conventional apelooka practice ammunition.
  • the practice cartridge is divided into a front made of black powder and a rear made of nitrocellulose powder, both of which are separated from each other by a disc.
  • nitroglycerin powder i.a. low residue combustion with improved firing behavior.
  • the propellant charge is fired through an ignition channel, which is arranged in the cartridge case.
  • the present invention has therefore also set itself the task of creating a practice ammunition with a bullet load, which enables a much closer hit picture.
  • the projectile is made in two parts in front of a separate empennage and provides a central part and a head part, the central part having at least one constriction and being held in the cartridge with beads and with the division level between The head part and middle part are above the constriction at the top of the floor.
  • a constriction in which the bead engages.
  • This is preferably designed as an oblique groove, i.e. as a cone that widens backwards, in particular with an angle between the lateral surface (longitudinal axis) and oblique groove of approximately 15 °.
  • the desired resistance to the explosion pressure of the propellant charge as well as an additional equalization of the opening process of the cartridge case can be achieved by a second constriction of the projectile, which is located a short distance behind the oblique puncture, into which an (inner) bead of the cartridge case also engages.
  • the pull-out resistance at the sleeve mouth can be influenced by the choice of the wall thickness.
  • the sealing of the cartridge mouth can be improved by a liquid seal (Locktite) or by an O-ring arranged in its own ring groove, which lies against the smooth inner surface of the sleeve adjoining the beads. Surprisingly, this does not adversely affect the passage through the barrel. Rubber or a suitable plastic is proposed as the material for the O-ring.
  • the cartridge case in two parts in a manner known per se from a tube piece and a base, which are screwed together.
  • the sleeves are made as an extrusion, whereas turned parts can be used in a split version.
  • the screw connection can be secured with a suitable adhesive to increase gas tightness.
  • Fig. 1 In it, a training cartridge is shown, which shows the floor 1 above, which rests in a cartridge case 2.
  • the storey 1 is driven by the propellant charge 3, a covered ring being installed between the storey 1 and the propellant charge 3.
  • the lower part 5 With the upper part 4 of the cartridge, the lower part 5 is screwed, in which the discharge charge 6 is housed for the insulation.
  • the discharge charge 6 In a conventional manner, it consists of a black powder set 7 and a high-energy nitrocellulose set 8, between which a gauze 9 lies.
  • the nitrocellulose set 8 is located in a basket 10 which is open at the top.
  • the lower part is closed to the outside by the metal bowl 11 (aluminum), between the basket 10 and the bowl 11 the iron powder filling 12 is inserted, which rests on the damping element 13 made of foam.
  • the damping element is advantageously connected to the pellet 11, i.e. glued or foamed.
  • the projectile consists of the projectile head 1, the tapered intermediate piece 16 and the adjoining tail boom 27. It is mounted in the cartridge case 4 and guided through the tail edges 19 in the inner wall of the case.
  • the sleeve holds the projectile in the press fit (20), in which the cartridge case 4 is folded over at right angles at the screwing point between the projectile head 1 and intermediate piece 16 and is clamped by screwing parts 1 and 16 together.
  • the tail unit encounters a disk 22.
  • the propellant charge 3 is located below the disk 22 in a corresponding recess in the cartridge case 4.
  • the cartridge case 4 is screwed to the Deutladungshülse 23 connecting to the rear.
  • Fig. 2 shows the floor in plan view and in section with two versions of the stage according to the invention.
  • the projectile head 1 can be solid or can be filled with a pulverized charge 24.
  • the hollow body 25 can also be made of plastic, e.g. Ultramid.
  • the truncated cone 17 adjoins the step 14, creating an annular surface 18, the width of which is e.g. about a third of the total projected area, the outer diameter is e.g. 18 mm and the diameter of the conical foot 13 mm.
  • the projectile head 1 is screwed to the adjoining tapered intermediate piece 16.
  • this is preferably made of metal (aluminum).
  • the tail boom 27 is in turn screwed to the intermediate piece 16. This is cylindrical and carries the tail fins 15 with the guide edges 19.
  • This type of spatial shape enables the entire tail assembly to be easily manufactured from e.g. extruded aluminum or a production as a cast or injection molded part, also made of plastic.
  • the projectile head 1 can also be designed in a simple manner to be completely flat with a circular surface 28, the flight stability being retained, but the face resistance increasing.
  • the tracer 22 is located inside the tail boom 27.
  • a three-part floor consisting of the middle part 31, the head part 30 and the tail unit 15 is shown. The parts are screwed together.
  • An iron powder charge 24 is arranged in the front area and disassembles the projectile when it hits the target.
  • this has a constriction 32 into which a bead of the cartridge case engages in order to connect the projectile to the latter.
  • the head part 30 projects forward over the middle part and has a short cylindrical extension 36 and a conical extension 35.
  • the constriction 32 is designed here as an oblique groove and forms an angle ⁇ of preferably approximately 15 °.
  • the head part 30 is pressed into the middle part 1.
  • a constriction 33 with a (semi) round cross-section can be provided and spaced thereon with an annular groove 34 and an O-ring 37.
  • the iron powder 24 is held as a compact between the head part 30 and the step 38 of the middle part 31, in order to improve the center of gravity of the projectile, a cavity 39 adjoins the step 38.
  • the head part is screwed to the middle part.
  • a tracer 29 is arranged in the tail unit 15.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Toys (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
EP90100014A 1989-01-04 1990-01-02 Cartouche d'exercice pour armes de défense sans recul Withdrawn EP0377433A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3900110 1989-01-04
DE3900111 1989-01-04
DE19893900111 DE3900111A1 (de) 1989-01-04 1989-01-04 Uebungsmunition fuer panzerfaust oder dergleichen
DE19893900110 DE3900110A1 (de) 1989-01-04 1989-01-04 Treibsatz fuer rueckstossfreie panzerfaustuebungsmunition

Publications (1)

Publication Number Publication Date
EP0377433A1 true EP0377433A1 (fr) 1990-07-11

Family

ID=25876558

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90100014A Withdrawn EP0377433A1 (fr) 1989-01-04 1990-01-02 Cartouche d'exercice pour armes de défense sans recul

Country Status (4)

Country Link
EP (1) EP0377433A1 (fr)
FI (1) FI900034A (fr)
IL (1) IL92941A0 (fr)
NO (1) NO900007L (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992007231A1 (fr) * 1990-10-10 1992-04-30 Nico-Pyrotechnik Cartouche sous-calibree pour armes d'exercice sans recul
TR25939A (tr) * 1991-10-14 1993-11-01 Nico Pyrotechnnik Hanns Juerge GERI TEPMESIZ TATBIKAT SILAHLARI ICIN KALIBRELERI GEREKEN CAPTAN KüCüK OLAN KARTUSLAR
WO1995010752A1 (fr) * 1993-10-12 1995-04-20 Hamilton, Alistair Bourre a reduction de recul pour des munitions de fusil de chasse
WO1997009582A1 (fr) * 1995-09-08 1997-03-13 Snc Industrial Technologies Inc./Les Technologies Obus de mortier pour stabilisation et tirs d'exercice
US5710391A (en) * 1993-10-12 1998-01-20 Chetcuti; Francis Recoil reducer wad for ammunition
WO2007049060A1 (fr) * 2005-10-28 2007-05-03 Richmond Eei Limited Ameliorations apportees a des dispositifs de tir d’un projectile

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1172990B (de) * 1960-05-27 1964-06-25 Nico Pyrotechnik UEbungsmunition fuer rueckstossfreie Panzer-abwehrwaffen
DE2059202B2 (de) * 1970-12-02 1975-01-02 Nico-Pyrotechnik Hanns-Juergen Diedrichs Kg, 2077 Trittau Übungsmunition für rückstoßfreie Abwehrwaffen
DE3421841A1 (de) * 1984-06-13 1986-01-16 Heide, Marion, 4030 Ratingen Unterkalibrige uebungspatrone
EP0270781A2 (fr) * 1986-12-11 1988-06-15 Piepenbrock Pyrotechnik Gmbh Cartouche d'exercice pour arme à feu sans recul

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1172990B (de) * 1960-05-27 1964-06-25 Nico Pyrotechnik UEbungsmunition fuer rueckstossfreie Panzer-abwehrwaffen
DE2059202B2 (de) * 1970-12-02 1975-01-02 Nico-Pyrotechnik Hanns-Juergen Diedrichs Kg, 2077 Trittau Übungsmunition für rückstoßfreie Abwehrwaffen
DE3421841A1 (de) * 1984-06-13 1986-01-16 Heide, Marion, 4030 Ratingen Unterkalibrige uebungspatrone
EP0270781A2 (fr) * 1986-12-11 1988-06-15 Piepenbrock Pyrotechnik Gmbh Cartouche d'exercice pour arme à feu sans recul

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992007231A1 (fr) * 1990-10-10 1992-04-30 Nico-Pyrotechnik Cartouche sous-calibree pour armes d'exercice sans recul
US5247889A (en) * 1990-10-10 1993-09-28 Nico-Pyrotechnik Hanns-Juergen Diederichs Gmbh & Co. Subcalibre cartridges for recoilless training weapons
TR25939A (tr) * 1991-10-14 1993-11-01 Nico Pyrotechnnik Hanns Juerge GERI TEPMESIZ TATBIKAT SILAHLARI ICIN KALIBRELERI GEREKEN CAPTAN KüCüK OLAN KARTUSLAR
WO1995010752A1 (fr) * 1993-10-12 1995-04-20 Hamilton, Alistair Bourre a reduction de recul pour des munitions de fusil de chasse
US5710391A (en) * 1993-10-12 1998-01-20 Chetcuti; Francis Recoil reducer wad for ammunition
WO1997009582A1 (fr) * 1995-09-08 1997-03-13 Snc Industrial Technologies Inc./Les Technologies Obus de mortier pour stabilisation et tirs d'exercice
WO2007049060A1 (fr) * 2005-10-28 2007-05-03 Richmond Eei Limited Ameliorations apportees a des dispositifs de tir d’un projectile

Also Published As

Publication number Publication date
NO900007L (no) 1990-07-05
FI900034A0 (fi) 1990-01-04
NO900007D0 (no) 1990-01-02
IL92941A0 (en) 1990-09-17
FI900034A (fi) 1990-07-05

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