NO317408B1 - Pyrotechnic charge in a rudder - Google Patents
Pyrotechnic charge in a rudder Download PDFInfo
- Publication number
- NO317408B1 NO317408B1 NO19981703A NO981703A NO317408B1 NO 317408 B1 NO317408 B1 NO 317408B1 NO 19981703 A NO19981703 A NO 19981703A NO 981703 A NO981703 A NO 981703A NO 317408 B1 NO317408 B1 NO 317408B1
- Authority
- NO
- Norway
- Prior art keywords
- tube
- pyrotechnic charge
- ball
- charge according
- silicone layer
- Prior art date
Links
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 17
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000000463 material Substances 0.000 claims abstract 2
- 229920002379 silicone rubber Polymers 0.000 claims description 2
- 239000004945 silicone rubber Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 claims 1
- 239000010703 silicon Substances 0.000 claims 1
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000005422 blasting Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- 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
- F42B8/26—Hand grenades
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Air Bags (AREA)
- Toys (AREA)
- Materials For Medical Uses (AREA)
Abstract
Description
Oppfinnelsen vedrører en pyroteknisk ladning i et rør som angitt i innledningen til patentkrav 1. The invention relates to a pyrotechnic charge in a tube as stated in the introduction to patent claim 1.
Fra DE 26 44 230 Al er det kjent en øvelseshåndgranat med tidsforsinkelse, hvor en pyroteknisk ladning blant annet tilveiebringer et knall. Ladningen er anordnet i et rør inne i håndgranaten. Røret er lukket med en bunn som rives opp av gasstrykket som oppstår når den pyrotekniske ladning tennes. Man kan i denne forbindelse ikke utelukke at større deler av bunnen flyr ut med høy kinetisk energi, noe som ikke er tillatt etter de gjeldende sikkerhetskrav. From DE 26 44 230 Al, a practice hand grenade with a time delay is known, where a pyrotechnic charge, among other things, provides a bang. The charge is arranged in a tube inside the hand grenade. The tube is closed with a bottom that is torn open by the gas pressure that occurs when the pyrotechnic charge is ignited. In this connection, it cannot be ruled out that larger parts of the bottom fly out with high kinetic energy, which is not permitted according to the current safety requirements.
DE 19 69 984 U beskriver et kanonslag. Dette består av et hullegeme av skumstoff. En knallblanding er ladet på de innvendige sidene av hullegemet. En sylindrisk pakning av skumstoff lukker boringen i ladningsrommet. Pakningen er forbundet til hullegemet med en klebeemulsjon. Pakningen tjener bare til fiksering av sprengladningen. Den oppviser ingen oppladende virkning. Det forekommer ingen fuktighetshindrende egenskaper i skumstoffet eller klebemiddelet. DE 19 69 984 U describes a cannon shot. This consists of a hollow body made of foam material. A blasting mixture is charged on the inner sides of the hole body. A cylindrical foam packing closes the bore in the cargo space. The gasket is connected to the hollow body with an adhesive emulsion. The gasket only serves to fix the explosive charge. It has no charging effect. There are no moisture-blocking properties in the foam or the adhesive.
Oppfinnelsens formål er av den grunn å fremskaffe et lukke med oppladningsvirkning for en pyroteknisk ladning, hvorved riktignok deler flyr bort, men disse oppviser en meget liten masse, slik at energien overført gjennom disse delene forblir langt under en tillatt verdi. The purpose of the invention is therefore to provide a closure with a charging effect for a pyrotechnic charge, whereby parts do fly away, but these have a very small mass, so that the energy transferred through these parts remains far below a permissible value.
Dette oppnås ifølge oppfinnelsen med de trekk som er angitt i karakteristikken i krav 1. Fordelaktige videreutviklinger av oppfinnelsen er angitt i de uselvstendige patentkrav. This is achieved according to the invention with the features indicated in the characteristic in claim 1. Advantageous further developments of the invention are indicated in the independent patent claims.
Oppfinnelsen skal nå forklares nærmere under henvisning til tegningene, hvor: The invention will now be explained in more detail with reference to the drawings, where:
Fig. 1 viser en øvelseshåndgranat i lengdesnitt, og Fig. 1 shows a practice hand grenade in longitudinal section, and
fig. 2 viser et forstørret utsnitt av et ladningsrør ifølge fig. 1. fig. 2 shows an enlarged section of a charging tube according to fig. 1.
En med strekpunkterte linjer inntegnet øvelseshåndgranat l har et sentralt ladningsrør 3 med tennhette S, en tidsforsinkelsessats 7 og en knall-ladning 9. A practice hand grenade 1 drawn with dashed lines has a central charging tube 3 with firing cap S, a time delay charge 7 and a burst charge 9.
Ladningsrøret 3 har en ende 11 ved øvelseshåndgranatens 1 nedre endeflate 13. En boring 15 opptar knall-ladningen 9. På endesiden har ladningsrøret 3 et konisk sete 17 for en kule 18 av en lett, oppskummet styrol, og en utsparing 19 for et skiveformet eller lokkformet silikonsjikt 21, som består av en vulkaniserbar silikonkautsjuk. Silikonsjiktet har kraterform 27 mot kulen 18 og kjegleform 28 mot det koniske sete 17. Silikonsjiktet har således en i snittet tilspisset kant 29, som omgir kulen 18 som en strimmel. The charge tube 3 has an end 11 at the lower end surface 13 of the practice hand grenade 1. A bore 15 accommodates the blast charge 9. On the end side, the charge tube 3 has a conical seat 17 for a ball 18 of a light, foamed styrene, and a recess 19 for a disc-shaped or lid-shaped silicone layer 21, which consists of a vulcanizable silicone rubber. The silicone layer has a crater shape 27 towards the ball 18 and a cone shape 28 towards the conical seat 17. The silicone layer thus has a pointed edge 29 in the section, which surrounds the ball 18 like a strip.
Kulen 18 er anordnet i setet 17 med lett forspenning, idet ca. 50 % av kulens overflate er sammenklebet med silikonsjiktet 21. Silikonsjiktet 21 er klebet til overflaten i utsparingen 19 og til en del av setet 17. The ball 18 is arranged in the seat 17 with slight bias, as approx. 50% of the ball's surface is glued together with the silicone layer 21. The silicone layer 21 is glued to the surface in the recess 19 and to part of the seat 17.
Silikonsjiket 21 har et meget tynt, men brannlignende sjikt 31 som muliggjør at kulen 18 lett kan gå ut av ladningsrøret 3. The silicone layer 21 has a very thin but fire-like layer 31 which enables the ball 18 to easily exit the charging tube 3.
Diameteren 23 i utsparingen 19 er større enn diameteren 25 til kulen 18. Som følge herav og som følge av det koniske sete 17,28 henholdsvis kanten 29 vil silikonsjiktet 21 ha en stor klebeoverflate mot ladningsrøret 3 og mot kulen 18. Man er således sikret at knall-ladningen 9 holdes på plass av det lukke 30 som kulen 18 og silikonsjiktet 21 danner, også ved kraftige støtpåkjenninger i ladningsrørets 3 lengderetning. The diameter 23 in the recess 19 is larger than the diameter 25 of the ball 18. As a result of this and as a result of the conical seat 17,28 and the edge 29 respectively, the silicone layer 21 will have a large adhesive surface against the charging tube 3 and against the ball 18. It is thus ensured that the shock charge 9 is held in place by the closure 30 formed by the ball 18 and the silicone layer 21, also in the event of strong impact stresses in the longitudinal direction of the charging tube 3.
Etter en tenning av tennhetten 5 vil tidsforsinkelsessatsen 7 brenne og denne sats vil så tenne knall-ladningen 9. Knall-ladningens 9 gasstrykk vil drive kulen 18 ut fra det koniske sete 17. Derved deformeres silikonsjiktet 21 i området vil sjiktet eller membranen 21, og kulen 18 vil til slutt trenge gjennom det stadig svakere silikonsjikt 21,31. Silikonsjiktet 21,31 vil forbli i ladningsrøret 3, mens kulen 18 går ut og raskt faller ned, nettopp som følge av at kulen har en meget liten masse og er utsatt for en stor luftmotstand. De kritiske betingelser med hensyn til kinetisk energi og flyvestrekning for utstøtte deler oppnås således ikke, dvs. at sikkerhetskravene vil være tilfredsstilt. After an ignition of the ignition cap 5, the time delay batch 7 will burn and this batch will then ignite the bang charge 9. The gas pressure of the bang charge 9 will drive the ball 18 out from the conical seat 17. Thereby the silicone layer 21 is deformed in the area of the layer or membrane 21, and the ball 18 will eventually penetrate the increasingly weak silicone layer 21,31. The silicone layer 21, 31 will remain in the charging tube 3, while the ball 18 exits and quickly falls down, precisely as a result of the fact that the ball has a very small mass and is exposed to a large air resistance. The critical conditions with regard to kinetic energy and flight distance for ejected parts are thus not achieved, i.e. that the safety requirements will be satisfied.
Claims (8)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19716511A DE19716511A1 (en) | 1997-04-19 | 1997-04-19 | Pyrotechnic charge in a tube |
Publications (3)
Publication Number | Publication Date |
---|---|
NO981703D0 NO981703D0 (en) | 1998-04-16 |
NO981703L NO981703L (en) | 1998-10-20 |
NO317408B1 true NO317408B1 (en) | 2004-10-25 |
Family
ID=7827084
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO19981703A NO317408B1 (en) | 1997-04-19 | 1998-04-16 | Pyrotechnic charge in a rudder |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP0872702B1 (en) |
AT (1) | ATE251301T1 (en) |
DE (2) | DE19716511A1 (en) |
DK (1) | DK0872702T3 (en) |
NO (1) | NO317408B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE202004018014U1 (en) * | 2004-11-20 | 2006-04-27 | Diehl Bgt Defence Gmbh & Co. Kg | Pipe with a pyrotechnic charge comprises a closure layer adhered to a closure member over one end |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR844961A (en) * | 1937-10-20 | 1939-08-07 | Anciens Ets Skoda | Dynamic self-timer projectile and relay |
FR1439815A (en) * | 1961-03-13 | 1966-05-27 | Zd Y Rijnove Revoluce Narodni | Explosion-proof, delayed electric detonator |
DE1969984U (en) * | 1967-02-28 | 1967-10-05 | Bock Geb | BANGERS WITH CANNON STRIKE. |
DE7235812U (en) * | 1972-09-29 | 1973-02-08 | Diehl | Training hand grenade |
IT1057038B (en) * | 1976-03-15 | 1982-03-10 | Moneta F | HAND GRENADE ITS ASSEMBLY PROCEDURE AND ITS ADAPTATION FOR EXERCISE USE |
AT396304B (en) * | 1991-03-26 | 1993-08-25 | Oregon Ets Patentverwertung | Practice hand grenade detonator (fuze) |
-
1997
- 1997-04-19 DE DE19716511A patent/DE19716511A1/en not_active Withdrawn
-
1998
- 1998-04-16 DK DK98106895T patent/DK0872702T3/en active
- 1998-04-16 EP EP98106895A patent/EP0872702B1/en not_active Expired - Lifetime
- 1998-04-16 AT AT98106895T patent/ATE251301T1/en not_active IP Right Cessation
- 1998-04-16 NO NO19981703A patent/NO317408B1/en unknown
- 1998-04-16 DE DE59809762T patent/DE59809762D1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE251301T1 (en) | 2003-10-15 |
DK0872702T3 (en) | 2004-02-02 |
EP0872702A2 (en) | 1998-10-21 |
NO981703D0 (en) | 1998-04-16 |
EP0872702A3 (en) | 2000-01-26 |
DE59809762D1 (en) | 2003-11-06 |
DE19716511A1 (en) | 1998-10-22 |
EP0872702B1 (en) | 2003-10-01 |
NO981703L (en) | 1998-10-20 |
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