EP1106959A1 - Tube allumeur pour munition d'artillerie - Google Patents
Tube allumeur pour munition d'artillerie Download PDFInfo
- Publication number
- EP1106959A1 EP1106959A1 EP00403283A EP00403283A EP1106959A1 EP 1106959 A1 EP1106959 A1 EP 1106959A1 EP 00403283 A EP00403283 A EP 00403283A EP 00403283 A EP00403283 A EP 00403283A EP 1106959 A1 EP1106959 A1 EP 1106959A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tablets
- igniter tube
- tube according
- ring
- stack
- 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
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/0823—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition
- F42C19/0826—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition comprising an elongated perforated tube, i.e. flame tube, for the transmission of the initial energy to the propellant charge, e.g. used for artillery shells and kinetic energy penetrators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C19/00—Details of fuzes
- F42C19/08—Primers; Detonators
- F42C19/0823—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition
- F42C19/083—Primers or igniters for the initiation or the propellant charge in a cartridged ammunition characterised by the shape and configuration of the base element embedded in the cartridge bottom, e.g. the housing for the squib or percussion cap
Definitions
- the technical field of the invention is that of tubes igniters, in particular for artillery ammunition.
- Known igniter tubes generally include a stack of tablets of an ignition composition, by example of black powder, placed inside a tube, generally metallic.
- the only part that is ejected from the chamber and then temporarily stored in the turret is the metal base.
- the metal igniter tubes have for disadvantage of going beyond the base which complicates ejection of the pellet and storage.
- Patent FR2593905 proposes to replace the tube metallic by a heat-shrinkable sheath which ensures the securing of the tablets as well as of a carrying case a means of ignition (for example an igniter), housing which is fixed to the base by screwing.
- a means of ignition for example an igniter
- the advantage of such a solution is that it ensures almost complete combustion of the igniter tube.
- the only part incombustible is constituted by the support box which has a height lower than that of the base and therefore does not interfere the ejection of the latter.
- the tube has a certain flexibility which facilitates its installation in the load.
- Such weakening is due, in part to shocks grains of powder at the connection edges between the stack of tablets and the support case, and in part to the constraints that develop at the level of this junction during bending movements of the tube igniter.
- igniter tube according to the invention retains the flexibility provided by the heat shrink tubing but it has improved resistance to stress.
- the tube according to the invention is of simple design and it can be made cheaply.
- the subject of the invention is therefore an igniter tube, especially for artillery ammunition, and comprising a stacking of at least two annular tablets of a ignition composition joined together by a heat-shrinkable sheath and an ignition means these tablets which is secured to a case, tube characterized in that the housing has a part tubular inside which is introduced with clearance stacking of tablets, the tubular part covering so at least part of the stack, and in that it includes a ring which is secured to the tablets by the heat-shrinkable sheath, ring comprising a abutment surface which is kept applied by means on a complementary surface carried by a housing bore.
- the bore in the tubular part is conical, the top of the cone on the side of the ring.
- the ring will preferably be made of a material compressible.
- the compressible material may be chosen from the following material: polyurethane elastomer, rubber, nitryl, polyurethane foam.
- the abutment surface of the ring could be a surface conical.
- the holding means may be constituted by a plug integral with the housing and supporting the means ignition.
- the tubular part will preferably have a length covering at least five tablets.
- the tubular part can carry at least two holes radials regularly distributed angularly.
- an igniter tube 1 according to the invention comprises a stack 2 of tablets 3 annulars of an ignition composition, for example of black powder, which are made integral with each other by a heat-shrinkable sheath 4.
- the stack 2 is made integral with a housing 5 which comprises a tubular part 6 which is closed at its part rear by a plug 7.
- the plug 7 constitutes a conventional ignition block which has an axial cylindrical housing 8 for a means ignition constituted for example by an igniter electric or percussion 9 connected to a relay pyrotechnic 10 flame enhancer. Inflammator 9 and relays 10 are separated by a spacer 11. They are made integral with the plug 7 by an annular crimping 12.
- the plug 7 has a first external thread 13 which allows its attachment to the housing 5 and a second thread external 14 which allows the attachment of the igniter tube 1 to an ammunition base (not shown).
- a ring 15 is made secured to the stack 2 of tablets per through the heat shrink tubing 4.
- This ring has an abutment surface 16, which is here conical, and which is kept applied by holding means on a complementary surface 17 carried by a bore 18 of the housing 5. The cooperation of conical surfaces ensures a centering of the stack 2 relative to the housing 5.
- the holding means are constituted here by the plug 7, the length of which is chosen so that, after screwing on the housing 5, its crimping 12 is resting on the ring 15.
- the bore 18 is slightly conical (angle at the top of 5 to 10 °). The top of the cone on the side of the stopper 7 and the maximum diameter of the bore on the side of a part front of the housing 5.
- the taper of bore 18 allows a slight travel of stack 2 of tablets, without mechanical interference with the housing.
- the part tubular 6 thus covers at least part of length L1 of stack 2 of tablets 3.
- the length L1 will be chosen so as to cover by the tubular part 6 at least 5 tablets 3 of composition ignition. We will choose a length L1 such that, after initiation of ammunition, the tubular part 6 of the housing 5 does not protrude from the base of the munition to be ejected. Concretely, the length L1 is of the order of 30 to 40 mm.
- the ring 15 from a material compressible, for example into a polyurethane elastomer Shore A hardness of around 70 to 80 (depending on the standard ASTM D785).
- the tubular part 6 of the housing 5 will carry advantageously radial holes 19 regularly distributed angularly (here 4 holes). These holes allow the passage of the flame generated by the tablets 3 which found inside the tubular part 6.
- the tubular part 6 hardly disturbs not igniting the propellant charge.
- the tablets in another pyrotechnic ignition composition than black powder.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
Abstract
Description
Claims (8)
- Tube allumeur (1), notamment pour une munition d'artillerie, et comprenant un empilement(2) d'au moins deux comprimés annulaires (3) d'une composition d'allumage rendus solidaires les uns des autres par une gaine thermorétractable (4) et un moyen d'allumage de ces comprimés qui est solidaire d'un boítier (5), caractérisé en ce que le boítier (5) comporte une partie tubulaire (6) à l'intérieur de laquelle est introduit avec jeu l'empilement (2) de comprimés, la partie tubulaire (6) couvrant ainsi au moins une partie de l'empilement, et en ce qu'il comprend un anneau (15) qui est rendu solidaire des comprimés (3) par la gaine thermorétractable, anneau comportant une surface de butée (16) qui est maintenue appliquée par des moyens de maintien (7) sur une surface complémentaire portée par un alésage (18) du boítier (5).
- Tube allumeur selon la revendication 1, caractérisé en ce que l'alésage (18) aménagé dans la partie tubulaire (6) est conique, le sommet du cône se trouvant du côté de l'anneau (15).
- Tube allumeur selon une des revendications 1 ou 2, caractérisé en ce que l'anneau (15) est réalisé en un matériau compressible.
- Tube allumeur selon la revendication 3, caractérisé en ce que le matériau compressible est choisi parmi les matériau suivants : élastomère de polyuréthanne, caoutchouc, nitryl, mousse de polyuréthanne.
- Tube allumeur selon une des revendications 1 à 4, caractérisé en ce que la surface de butée (16) de l'anneau (15) est une surface conique.
- Tube allumeur selon une des revendications 1 à 5, caractérisé en ce que les moyens de maintien sont constitués par un bouchon (7) solidaire du boítier (5) et supportant le moyen d'allumage (9).
- Tube allumeur selon une des revendications 1 à 6, caractérisé en ce que la partie tubulaire (6) a une longueur couvrant au moins cinq comprimés (3).
- Tube allumeur selon la revendication 7, caractérisé en ce que la partie tubulaire (6) porte au moins deux trous radiaux (19) régulièrement répartis angulairement.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9915710A FR2802297B1 (fr) | 1999-12-08 | 1999-12-08 | Tube allumeur pour munition d'artillerie |
FR9915710 | 1999-12-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1106959A1 true EP1106959A1 (fr) | 2001-06-13 |
EP1106959B1 EP1106959B1 (fr) | 2006-05-03 |
Family
ID=9553203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00403283A Expired - Lifetime EP1106959B1 (fr) | 1999-12-08 | 2000-11-24 | Tube allumeur pour munition d'artillerie |
Country Status (5)
Country | Link |
---|---|
US (1) | US6474239B2 (fr) |
EP (1) | EP1106959B1 (fr) |
DE (1) | DE60027676T2 (fr) |
FR (1) | FR2802297B1 (fr) |
IL (1) | IL139904A (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3092660A1 (fr) | 2019-02-13 | 2020-08-14 | Nexter Munitions | Fusee pour un projectile destine a etre tire par un canon |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2508523C2 (ru) * | 2012-04-26 | 2014-02-27 | Открытое акционерное общество "Научно-производственное предприятие "Краснознаменец" | Трубка воспламенительная электроударного действия |
RU209348U1 (ru) * | 2021-08-23 | 2022-03-15 | ФКП "Саранский механический завод" | Пиротехнический замедлитель |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB683247A (en) * | 1949-10-11 | 1952-11-26 | Energa | Safety device for rocket projectiles |
GB1037743A (en) * | 1962-05-09 | 1966-08-03 | Dynamit Nobel Ag | Improvements in or relating to cartridges for firing projectiles and the like |
GB1535733A (en) * | 1974-11-29 | 1978-12-13 | Bofors Ab | Primer for ammunition |
US4669383A (en) * | 1984-05-07 | 1987-06-02 | Dynamit Nobel Aktiengesellschaft | Propellant charge igniter |
FR2591735A1 (fr) * | 1985-12-17 | 1987-06-19 | Thomson Brandt Armements | Generateur pyrotechnique de gaz et utilisation dans un dispositif ejecteur de sous-munitions d'une charge militaire |
FR2593905A1 (fr) | 1986-02-03 | 1987-08-07 | France Etat Armement | Allumeur destructible pour charges propulsives |
EP0822385A1 (fr) * | 1996-08-02 | 1998-02-04 | Rheinmetall Industrie Aktiengesellschaft | Allumeur de charge propulsive |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US223312A (en) * | 1880-01-06 | Fuse for explosive projectiles | ||
US38994A (en) * | 1863-06-23 | Isaac t | ||
US3182595A (en) * | 1962-07-20 | 1965-05-11 | Harry F Hassmann | Igniter assembly containing strands of benite |
FR1593513A (fr) * | 1968-05-17 | 1970-06-01 | ||
US3667391A (en) * | 1969-05-01 | 1972-06-06 | France Etat | Detonator and igniter for explosives |
US3750581A (en) * | 1971-09-20 | 1973-08-07 | Us Army | Missile motor igniter assembly |
DE2648137C2 (de) * | 1976-10-23 | 1984-04-12 | Dynamit Nobel Ag, 5210 Troisdorf | Treibladungsanzünder für Munition |
DE2832879A1 (de) * | 1978-07-27 | 1980-02-14 | Dynamit Nobel Ag | Treibladungsanzuender |
US4358998A (en) * | 1980-02-04 | 1982-11-16 | Thiokol Corporation | Igniter for a pyrotechnic gas bag inflator |
DE3502166A1 (de) * | 1985-01-23 | 1986-07-24 | Dynamit Nobel Ag, 5210 Troisdorf | Teilverbrennbarer treibladungsanzuender |
DE3912183A1 (de) * | 1989-04-13 | 1990-10-18 | Buck Chem Tech Werke | Anzuendzerlegervorrichtung |
DE3938123A1 (de) * | 1989-11-16 | 1991-05-23 | Diehl Gmbh & Co | Treibladungsanzuender |
EP0526389B1 (fr) * | 1991-06-29 | 1997-01-29 | Dynamit Nobel GmbH Explosivstoff- und Systemtechnik | Dispositif pour décharger une munition |
DE4240273A1 (de) * | 1992-12-01 | 1994-06-09 | Dynamit Nobel Ag | Treibladungsanzünder |
US5503081A (en) * | 1993-11-22 | 1996-04-02 | Fmc Corp | Annular plasma injector |
FI108965B (fi) * | 1997-01-24 | 2002-04-30 | Patria Vammas Oy | Sovitelma kranaatin tukemiseksi takaaladattavan aseen putkeen |
US6321630B1 (en) * | 2000-03-27 | 2001-11-27 | The United States Of America As Represented By The Secretary Of The Navy | Thermoset/thermoplastic line charge with contoured fabric fastening and detonating cord management system and assembly process |
US6272996B1 (en) * | 1998-10-07 | 2001-08-14 | Shock Tube Systems, Inc. | In-line initiator and firing device assembly |
-
1999
- 1999-12-08 FR FR9915710A patent/FR2802297B1/fr not_active Expired - Lifetime
-
2000
- 2000-11-24 EP EP00403283A patent/EP1106959B1/fr not_active Expired - Lifetime
- 2000-11-24 DE DE60027676T patent/DE60027676T2/de not_active Expired - Lifetime
- 2000-11-24 IL IL13990400A patent/IL139904A/en active IP Right Grant
- 2000-12-08 US US09/731,794 patent/US6474239B2/en not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB683247A (en) * | 1949-10-11 | 1952-11-26 | Energa | Safety device for rocket projectiles |
GB1037743A (en) * | 1962-05-09 | 1966-08-03 | Dynamit Nobel Ag | Improvements in or relating to cartridges for firing projectiles and the like |
GB1535733A (en) * | 1974-11-29 | 1978-12-13 | Bofors Ab | Primer for ammunition |
US4669383A (en) * | 1984-05-07 | 1987-06-02 | Dynamit Nobel Aktiengesellschaft | Propellant charge igniter |
FR2591735A1 (fr) * | 1985-12-17 | 1987-06-19 | Thomson Brandt Armements | Generateur pyrotechnique de gaz et utilisation dans un dispositif ejecteur de sous-munitions d'une charge militaire |
FR2593905A1 (fr) | 1986-02-03 | 1987-08-07 | France Etat Armement | Allumeur destructible pour charges propulsives |
EP0822385A1 (fr) * | 1996-08-02 | 1998-02-04 | Rheinmetall Industrie Aktiengesellschaft | Allumeur de charge propulsive |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR3092660A1 (fr) | 2019-02-13 | 2020-08-14 | Nexter Munitions | Fusee pour un projectile destine a etre tire par un canon |
WO2020165699A1 (fr) | 2019-02-13 | 2020-08-20 | Nexter Munitions | Fusee pour un projectile destine a etre tire par un canon |
US11774225B2 (en) | 2019-02-13 | 2023-10-03 | Nexter Munitions | Fuze for a projectile intended to be fired by a cannon |
Also Published As
Publication number | Publication date |
---|---|
FR2802297A1 (fr) | 2001-06-15 |
US20010018878A1 (en) | 2001-09-06 |
IL139904A0 (en) | 2002-02-10 |
EP1106959B1 (fr) | 2006-05-03 |
IL139904A (en) | 2004-01-04 |
US6474239B2 (en) | 2002-11-05 |
FR2802297B1 (fr) | 2002-10-11 |
DE60027676D1 (de) | 2006-06-08 |
DE60027676T2 (de) | 2007-02-22 |
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