WO1988002095A1 - Simulateur de tir rapide pyrotechnique - Google Patents

Simulateur de tir rapide pyrotechnique Download PDF

Info

Publication number
WO1988002095A1
WO1988002095A1 PCT/AU1987/000318 AU8700318W WO8802095A1 WO 1988002095 A1 WO1988002095 A1 WO 1988002095A1 AU 8700318 W AU8700318 W AU 8700318W WO 8802095 A1 WO8802095 A1 WO 8802095A1
Authority
WO
WIPO (PCT)
Prior art keywords
pyrotechnic
cassette
charges
billet
simulator
Prior art date
Application number
PCT/AU1987/000318
Other languages
English (en)
Inventor
Christopher C. J. Murray
Anthony T. Curtis
Leslie R. Howard
Roderick J. Morris
Original Assignee
Murray Christopher C J
Curtis Anthony T
Howard Leslie R
Morris Roderick J
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 Murray Christopher C J, Curtis Anthony T, Howard Leslie R, Morris Roderick J filed Critical Murray Christopher C J
Publication of WO1988002095A1 publication Critical patent/WO1988002095A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B4/00—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes
    • F42B4/24—Fireworks, i.e. pyrotechnic devices for amusement, display, illumination or signal purposes characterised by having plural successively-ignited charges
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F41—WEAPONS
    • F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
    • F41A33/00—Adaptations for training; Gun simulators
    • F41A33/04—Acoustical simulation of gun fire, e.g. by pyrotechnic means

Definitions

  • the present invention relates to pyrotechnic devices for the simulation of gunfire and more particularly to a compact and readily rechargable gunfire simulator and replaceable charged cassette therefor.
  • the present invention proposes a pyrotechnic gunfire ' simulator comprising an abutting billet and firing chamber operable to enable a plurality of charges to be loaded into bores in the firing chamber, whereafter the billet and firing chamber can be returned to be retained in abutting relationship, said simulator being adapted to be mounted on or adjacent a gun.
  • the billet incorporates a variable diameter mounting stem which fits and is locked within the barrel of, say, a gun as mounted on an armoured vehicle.
  • the firing chamber is hingedly connected to the billet and releasably locked to the billet when the chamber and billet are in abutting relationship.
  • the present invention provides a pyrotechnic cassette comprising a backplate, a plurality of pyrotechnic charges mounted on the backplate and projecting forwardly of said backplate and a front plate mounted on said backplate, said frontplate being formed to provide a corresponding plurality of shells containing respective pyrotechnic charges, and electrical circuit means associated with said charges for enabling selective ignition of said charges.
  • the pyrotechnic cassette of the invention can be made as a single piece unit or as a multi-part item.
  • Fig..1 is a schematic block diagram depicting the . mode of operation of a pyrotechnic gunfire simulator in accordance with the present invention
  • Fig. 2 is a perspective view of an embodiment of an opened pyrotechnic gunfire simulator in accordance with the present invention
  • Fig. 3a is a plan view of an embodiment of a pyrotechnic cassette in accordance with the present invention.
  • Fig. 3b is the section view Illb-IIIb of the cassette of Fig. 3a;
  • Fig. 4 is an embod.iment of a barrel mounting mechanism; and Fig. 5 is a two part cassette in accordance with another embodiment.
  • a pyrotechnic gunfire simulator comprising a cassette-holder 3 is inserted into a gun barrel and locked therein.
  • Cassette 2 is connected via cable 4 to a firing control unit 1 which is installed within a vehicle upon which the gun is mounted.
  • Firing control unit 1 obtains power 5 from the vehicle and a firing signal 6 is provided from the main-armament firing control in the vehicle.
  • Firing control unit 1 is of any known type and is included to clarify the means of firing the pyrotechnic charges incorporated in cassette 2.
  • the pyrotechnic gunfire simulator of Fig. 2 consists of a cassette holder assembly comprising a metal billet 7 attached to a variable diameter mounting cylinder 10 the latter being inserted into gun-barrel 11 and securely locked therein by locking screw 12.
  • firing chamber 8 whiqh consists of a plurality of machined circula ⁇ cylindrical holes of such, a nature as to allow the pyrotechnic cassette (see Fig. 3) to be inserted.
  • Hinge 9 allows firing chamber 8 to rotate as depicted via arrow 16 such that rotation towards the arrow-end 18 closes the device with firing chamber 8 abutting the billet 7 and rotation towards arrow-end 17 opens the device.
  • firing chamber 8 is secured against billet 7 via lock-flange 13 engaging receptacle 14.
  • Hole 15 is incorporated into the device to allow screw 12 to be accessed with the device closed thus enabling installation into the gun-barrel 11 with minimum complication.
  • the pyrotechnic cassette of Fig. 3 comprises a backplate 19 incorporating a printed-circuit board which carries the electrical connections for each pyrotechnic container or shell, onto which is mounted a plurality of electrically detonatable pyrotechnic charges 23.
  • each hollow cylinder is partially filled with a suitable elastomeric sealant 22, which provides inter-charge sealing and shock absorption, followed by a measured amount of pyrotechnic powder 23.
  • a suitable elastomeric sealant 22 which provides inter-charge sealing and shock absorption, followed by a measured amount of pyrotechnic powder 23.
  • Each pyrotechnic charge being sealed with a bung 24.
  • Electrical connections 25 to each pyrotechnic charge project peripherally from the cassette.
  • Hole 26, within the assembly is provided for mounting purposes and corresponds with hole 15 in firing chamber 8.
  • the barrel mounting mechanism of Fig. 4 comprises firing chamber backplate or billet 7 which is connected to the mounting mechanism via bolts 30.
  • the mounting mechanism outer cylinder 28 is machined to receive three wedges 32 which can be pushed radially outwards by cam 31 under the action of turning screw 29 when the mounting mechanism is fitted into a gun barrel. This turning action of screw 29 forces wedges 32 outwards to press against the bore of the gun-barrel, thus
  • Fig. 5 the cassette is formed in two parts.
  • the first part comrising the backplate formed from printed circuit board 1 and plastic preform 2 containing igniters 5 elastomeric sealant 6, explosive pyrotechnic composition 7 and plastic cap 4.
  • the second part comprises plastic preform 3 containing non explosive pyrotechnic composition 8 retained in each shell by sealing plug 9.
  • This embodiment has significant advantages in transportation and storage as the different grades of pyrotechnic composition 7,8 must be handled -with different degrees of safety enabling the relatively non-explosive part to be more easily handled than the more explosive part. Whereas, if the cassette was to be handled in its completed assembled form (see Figs. 3a and 3b) it must be treated in accord with the stricter regulations that apply to the more, explosive composition.
  • the two part cassette of Fig. 5 can be readily assembled just prior to use while retaining handling advantages over an assembled cassette up to that time.
  • Many modifications may be made to the present invention in terms of fabrication material chosen to implement the invention or methods of manufacture and style, as would be apparent to persons skilled in the pyrotechnic and mechanical engineering arts. These and other modifications my be made without departing from the ambit of the invention,- the nature of which is to be determined from the foregoing description.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Bags (AREA)

Abstract

Un simulateur de tir rapide pyrotechnique (3) comprend une chambre de tir ou un élément d'obturateur (8) constitué d'une pluralité d'âmes destinées à recevoir une cassette pyrotechnique (19, 20, 21, 22, 23, 24, 25) comportant un nombre correspondant de cartouches. Les cartouches de la cassette bouchent simplement les âmes de leur chambre de tir (8), laquelle se referme pour permettre le tir séquentiel par mise à feu électrique commandée de chacune des cartouches de la cassette.
PCT/AU1987/000318 1986-09-22 1987-09-18 Simulateur de tir rapide pyrotechnique WO1988002095A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU810486 1986-09-22
AUPH8104 1986-09-22

Publications (1)

Publication Number Publication Date
WO1988002095A1 true WO1988002095A1 (fr) 1988-03-24

Family

ID=3698764

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1987/000318 WO1988002095A1 (fr) 1986-09-22 1987-09-18 Simulateur de tir rapide pyrotechnique

Country Status (1)

Country Link
WO (1) WO1988002095A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244547B (en) * 1990-05-17 1994-02-09 Jenkins Harvey Dev Ltd A pyrotechnic device
EP1826525A1 (fr) * 2006-02-28 2007-08-29 COMET GmbH Pyrotechnik-Apparatebau Dispositif pour créer des effets pyrotechniques

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1157121B (de) * 1962-05-09 1963-11-07 F G Baucus K G Vorrichtung zur automatischen Folgezuendung pyrotechnischer Rauch- oder Leuchtkoerper
GB1190701A (en) * 1967-11-03 1970-05-06 Hoffmann Werke Oswald Firing Equipment for Simulating Gun-Fire.
GB1326195A (en) * 1967-11-03 1973-08-08 Hoffmann Werke Oswald Firing equipment for simulating gun-fire
GB1589641A (en) * 1978-05-30 1981-05-20 Precitronic Disposable pyrotechnic magazine
DE3335508A1 (de) * 1983-09-30 1985-04-25 Hoffmann-Werke J. Oswald Hoffmann Gmbh, 4030 Ratingen Abfeuergeraet zur darstellung von kanonenschuessen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1157121B (de) * 1962-05-09 1963-11-07 F G Baucus K G Vorrichtung zur automatischen Folgezuendung pyrotechnischer Rauch- oder Leuchtkoerper
GB1190701A (en) * 1967-11-03 1970-05-06 Hoffmann Werke Oswald Firing Equipment for Simulating Gun-Fire.
GB1326195A (en) * 1967-11-03 1973-08-08 Hoffmann Werke Oswald Firing equipment for simulating gun-fire
GB1589641A (en) * 1978-05-30 1981-05-20 Precitronic Disposable pyrotechnic magazine
DE3335508A1 (de) * 1983-09-30 1985-04-25 Hoffmann-Werke J. Oswald Hoffmann Gmbh, 4030 Ratingen Abfeuergeraet zur darstellung von kanonenschuessen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2244547B (en) * 1990-05-17 1994-02-09 Jenkins Harvey Dev Ltd A pyrotechnic device
EP1826525A1 (fr) * 2006-02-28 2007-08-29 COMET GmbH Pyrotechnik-Apparatebau Dispositif pour créer des effets pyrotechniques

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