EP1079200B9 - Dispositif pyrotechnique de connexion et de retard - Google Patents
Dispositif pyrotechnique de connexion et de retard Download PDFInfo
- Publication number
- EP1079200B9 EP1079200B9 EP00410101A EP00410101A EP1079200B9 EP 1079200 B9 EP1079200 B9 EP 1079200B9 EP 00410101 A EP00410101 A EP 00410101A EP 00410101 A EP00410101 A EP 00410101A EP 1079200 B9 EP1079200 B9 EP 1079200B9
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- pyrotechnic device
- parts
- track
- internal
- 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
Links
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims abstract description 11
- 238000003780 insertion Methods 0.000 claims description 5
- 230000037431 insertion Effects 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000000605 extraction Methods 0.000 claims 1
- 230000001934 delay Effects 0.000 description 13
- 239000004033 plastic Substances 0.000 description 5
- 235000015842 Hesperis Nutrition 0.000 description 2
- 235000012633 Iberis amara Nutrition 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000002655 kraft paper Substances 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 230000002512 anti-withdrawal effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000000379 polymerizing effect Effects 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 210000002105 tongue Anatomy 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42D—BLASTING
- F42D1/00—Blasting methods or apparatus, e.g. loading or tamping
- F42D1/04—Arrangements for ignition
- F42D1/06—Relative timing of multiple charges
-
- 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
Definitions
- the present invention relates to the field of pyrotechnics.
- the delay devices are of various types. he for example, slow wicks or Bickford cords. However, more generally, delays consisting of powder packed in a cardboard cylinder as it is currently the cheapest device.
- the links between igniter, wicks and delay devices are provided by sheaths of kraft paper and ligatures, such sheaths and ligatures being then possibly themselves ligated or nailed on wooden bars, for example the housing in which are arranged several mortars.
- the realization of such editing is long and tedious. So, in general, we proceed to assemble the various elements in advance, in workshop. In addition, such montages are not very accessible to a unprofessional user.
- the delay devices above also present the disadvantage of not allowing to realize any delay time. It is generally admitted that, with common powders, the length of the cardboard cylinder sets the length of the delay which is of the order of one second per centimeter. In practice, he is difficult to obtain relatively precise delays from a duration less than 2 seconds or greater than 5 to 6 seconds. Otherwise, it is necessary to pass to slow loops of type cords Bickford which are significantly more expensive.
- delay systems produce strong flames on one side of the cylinder when the delay starts to ignite and on both sides when the flame reaches the other end of the delay. These strong flames are likely to ignite wicks or delay devices located at proximity. This requires taking extra precautions and further complicates editing.
- an object of the present invention is to provide a connection and delay system between wicks or between igniter and wick (s) which is particularly simple to put into and which allows to reach delays of durations chosen, for example ranging from zero duration to durations of the order of a minute or more.
- Another object of the present invention is to provide such a system for selecting a delay of a duration chosen from several predetermined durations.
- the present invention provides a pyrotechnic device for connection and delay between wicks and / or between igniter and wicks, comprising a cavity divided into two parts whose inner walls are coated a highly flammable material; means for blocking one or several wicks in each of the parts; and means of communication between the two parties.
- Figure 1A is a sectional view of a first embodiment of embodiment of the present invention consisting of a cylinder hollow 1 whose inner walls 2 are coated with a material highly flammable, preferably a burning powdery product very easily inside a cavity. This product is for example glued black powder.
- a means 3 of maintaining a wick At each end of the cylinder 1 is mounted a means 3 of maintaining a wick.
- this holding means is represented in the form of a cap.
- the cylinder 1 is made of plastic as well as caps 3.
- Figure 1B shows an end view of an example of cap.
- the flat part of the cap is for example a sheet of thin plastic material and elastic cut in star for forming tabs whose tip is substantially intersection of the sheet and the axis of the cylinder. So, when a wick is pushed into the cylinder, elemental tabs deform and bend inwards, opposing withdrawal of the wick.
- FIG. 1C represents the device of FIG. 1A also in a sectional view, in the case of wicks 4 and 5 are respectively inserted in the left part 6 and in the straight part 7 of the cylinder.
- the locks can be more or less sunken and go or not to join.
- FIG. 1D illustrates a variant embodiment of wick holding means 3 according to the present invention.
- This medium takes the form of a flange 8 provided with teeth turned inward and fixed at a point 9 at one end of the tube 1.
- the free ends of the collar are provided with means complementary fasteners 10, for example by clipping, for tighten the collar against a bit and the walls of the tube.
- This embodiment makes it possible to better adapt to wicks relatively hard and large diameter.
- the device according to the first embodiment of the present invention allows the connection between two wicks.
- the wick 4 Once the wick 4 has been lit, it transmits flames inside the cylinder that can ignite directly the end of the opposite wick 5.
- the wick 4 causes extremely rapid ignition of the powder disposed on the internal walls 2 and the flame created by this powder causes the ignition of the second wick 5 if a conflagration direct did not occur.
- the cylinders 1 and their caps 3 can be sized so that we can introduce to each end one or more wicks. We can also to penetrate on one side a wick and on the other side an igniter electric power supply, or to turn a wick and a igniter and on the other side one or more wicks to be able to propagate the flame communicated by the igniter simultaneously to several locks.
- FIG. 2 represents a sectional view of a second embodiment of the present invention providing a connection function between wicks with a non-zero delay.
- the device according to the second embodiment of the present invention comprises two cylindrical parts 11 and 12 recessed one in the other.
- the inner cavity of the inner cylinder 11 is divided into two parts 13 and 14 by a partition 15.
- the inner walls of each of the two parts 13 and 14 are, as in the case of the first embodiment of the present invention, covered with a highly flammable material 2.
- the outer wall of the inner cylinder 11 is provided with a grooving, for example thread-like helical, forming a track 16 which communicates through a first end with an orifice 17 in the wall of the left part 13 of the internal cavity of the cylinder 11 and by a second end with an orifice 18 in the wall of the right part 14 of the internal cavity of the cylinder 11.
- the track 16 formed between the openings 17 and 18 is filled with a material allowing, when it is lit at one end, to propagate the flame towards the other end at a substantially linear velocity constant. This will be for example black powder packed or a specific bead such as a thin slow wick made by Bickford society.
- end caps 3 allow insertion and blocking of bits 4 and 5 in each of the cavity portions 13 and 14.
- this flame ignites the powder disposed on the walls of this part 13.
- the flame propagates in powder disposed in the orifice 17 and the along runway 16, reaches orifice 18, ignites the powder disposed on the walls of the straight portion 14 of the cavity, and triggers the ignition of the wick 5.
- FIG. 3 represents a variant embodiment of the device of Figure 2, constituting a third mode of embodiment of the present invention.
- the device comprises an inner cylinder 21 and an outer cylinder 22.
- the cavity internal is divided into two parts 23 and 24 by a partition 25.
- a short rectilinear track 26 extends between orifices 27 and 28 through the walls of the cavity portions 23 and 24.
- FIG. 3 A system for holding / locking the locks different from that of Figures 1 and 2 is also illustrated in Figure 3.
- the outer tube 22 overflows on both sides of the inner tube 21 and has in the overflow portion an annular groove 29 for receiving a disk 30 for locking a wick.
- This disc may have in view end, a look similar to that of Figures 1 and 2. It may also be chosen that the Figure 3 shows larger slots between the elementary tabs, and that the central part is cut. We can also choose a disc made of a material flexible metal.
- the holding system can be consisting of integral molded plastic tongues ends of the inner cylinder.
- FIG. 4 represents a fourth embodiment of the present invention.
- the left part of the figure includes a device similar to that of Figure 2 in which the same elements have been designated by the same references.
- the part right 14 of the cavity to the right of the partition 15 is extends by dividing into several cylinders 31 to 34, including each is intended to receive a wick 35 to 38.
- Figures 5A and 5B show in side view and in front view a fifth embodiment of the present invention.
- the left part of the device of Figure 5A is similar to Figure 4.
- the device instead of dividing into several cylinders, flares in a fan 41, its extreme face including a system 42 of lock anti-withdrawal of several wicks that can be inserted in parallel.
- the present invention provides a device for particularly simple, reliable, adjustable and safe delay. Moreover, this device can be of relatively low cost, be manufactured in large series in plastic ...
- Fig. 6 shows a sixth embodiment of the present invention in which the same pyrotechnic device may, at the option of the user, perform one of several predetermined delays.
- This device comprises an inner tube 50, a tube intermediate 60 and an outer tube 70.
- the inner tube 50 like the tube 1 of FIG. tube 11 of Figure 2 or the tube 21 of Figure 3 has its walls internally coated with a highly flammable material 2.
- This tube 50 is divided into two parts by an internal partition 51. It includes through openings 52 and 53 on both sides of the partition.
- the intermediate tube 60 is a tube on the surface outer of which are formed several tracks 61, 62, 63, longitudinal in the example shown, whose ends comprise openings 61-1, 61-2, 62-1, 62-2 and 63-1, 63-2. These openings cross the tube 60.
- the device comprises an outer tube 70 of protection.
- the outer tube 70 is fixedly mounted relative to the tube intermediate 60 which can rotate relative to the inner tube 50.
- Various means may be provided so that, after assembly, the inner tube can rotate relative to the intermediate tube while being held axially.
- the ignition is transmitted with a delay determined by runway 61 to opening 61-2.
- the inner tube relative to the intermediate tube can select one of the delays 62 or 63 or another delay not shown disposed on the non-visible face of the intermediate cylinder.
- a first marker 54 is formed on the outer edge of the inner tube, which for example is slightly longer than the intermediate tube, to facilitate its grip and its rotation.
- the intermediate tube is provided with second markers, preferably at both ends, respectively 61-0, 62-0 and 63-0.
- a track 65 extends between the ends of the tracks 61, 62, 63 on the opposite side to the side where ignition normally occurs. So once a track has been lit and played its effect of delay, the ignition propagates towards the other tracks and the powder they contain is burned, which prevents the device, once used, may present any danger.
- Figure 7 shows a variant of the sixth mode of embodiment of the present invention.
- the openings of the intermediate tube can be those shown in Figure 6. It can also be the openings of a helical track 71 shown in FIG. embodiment, it will be necessary to provide a number of identical references 59 on the side of the inner tube and 72 on the side of the outer tube.
- the markers will have to be identified. Preferably they will be identified by the same colors or the same indications.
- this tube could be replaced by a varnish or soaking the intermediate cylinder part in a material substance plastic capable of polymerizing.
- This sixth embodiment of the present invention may appear more complex than the described embodiments previously.
- the cost of manufacturing such a device will be weaker than the others because it could be manufactured in very large series, the same device that can be used to achieve different delays.
- it will not arise again, for the user, the problem of having to store ranges of delay devices.
- the present invention is capable of various variations and modifications that will appear to the man from art.
- the various embodiments described can be combined; for example the multirate systems of Figures 4 and 5 can to be adapted to the first embodiment of the invention.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Lighters Containing Fuel (AREA)
- Fuses (AREA)
- Electronic Switches (AREA)
- Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)
- Spray Control Apparatus (AREA)
- Air Bags (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Catching Or Destruction (AREA)
Description
Claims (10)
- Dispositif pyrotechnique de connexion et de retard entre mèches et/ou entre allumeur et mèches, caractérisé en ce qu'il comprend :une cavité divisée en deux parties (6, 7 ; 13, 14 ; 23, 24) dont les parois internes (2) sont revêtues d'un matériau très inflammable ;des moyens (3 ; 30) de blocage d'une ou plusieurs mèches dans chacune des parties ; etdes moyens de communication entre les deux parties.
- Dispositif pyrotechnique selon la revendication 1, caractérisé en ce que les deux parties (13, 14 ; 23, 24) sont séparées par une cloison (15 ; 25) et en ce que les moyens de communication comprennent une piste (16 ; 26), contenant un matériau brûlant lentement et régulièrement, s'étendant à l'extérieur des parois de la cavité entre des orifices (17, 18 ; 27, 28) communiquant avec chacune des deux parties de la cavité.
- Dispositif pyrotechnique selon la revendication 2, caractérisé, en ce qu'il comprend :un premier cylindre creux (11) dont la cavité interne est divisée en deux parties (13, 14 ; 23, 24) par une cloison (15 ; 25), et dont la paroi externe comporte une piste (16 ; 26) qui communique par des orifices (17, 18 ; 27, 28) avec lesdites parties ; etun deuxième cylindre creux (12) dont le diamètre interne correspond au diamètre externe du premier cylindre creux et dans lequel le premier cylindre est inséré.
- Dispositif pyrotechnique selon la revendication 2, caractérisé en ce qu'il comprend :un cylindre interne creux (50) dont la cavité interne est divisée en deux parties par une cloison (51) et dont la paroi externe comporte des ouvertures (52, 53 ; 56, 57, 58) ; etun cylindre intermédiaire creux (60) susceptible d'être monté coaxialement et à rotation à l'extérieur du cylindre interne, la paroi externe du cylindre intermédiaire comportant des pistes (61, 62, 63 ; 71) dont les extrémités communiquent par des orifices avec les ouvertures du cylindre intérieur, quand les cylindres sont convenablement orientés en rotation.
- Dispositif pyrotechnique selon la revendication 3 ou 4, caractérisé en ce que ladite piste (16 ; 71) s'étend hélicoïdalement.
- Dispositif pyrotechnique selon la revendication 3 ou 4, caractérisé en ce que la ou lesdites pistes (26 ; 61, 62, 63) s'étendent de façon rectiligne.
- Dispositif pyrotechnique selon l'une quelconque des revendications 3 à 6, caractérisé en ce que la ou lesdites pistes (16 ; 26) sont remplies d'une poudre inflammable tassée.
- Dispositif pyrotechnique selon la revendication 3 caractérisé en ce que, d'un côté, le premier cylindre se subdivise en plusieurs tubes (31, 34).
- Dispositif pyrotechnique selon la revendication 3 caractérisé en ce que, d'un côté, le premier cylindre s'évase en éventail (41).
- Dispositif pyrotechnique selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les moyens de blocage (3 ; 30 ; 42) comprennent des languettes en un matériau souple mais relativement solide, s'étendant sensiblement perpendiculairement à des ouvertures d'insertion de mèches, et susceptibles de se déformer vers l'intérieur lors de l'insertion d'une mèche pour bloquer une extraction de la mèche.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9910880A FR2797947B1 (fr) | 1999-08-24 | 1999-08-24 | Dispositif pyrotechnique de connexion et de retard |
FR9910880 | 1999-08-24 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1079200A1 EP1079200A1 (fr) | 2001-02-28 |
EP1079200B1 EP1079200B1 (fr) | 2004-10-13 |
EP1079200B9 true EP1079200B9 (fr) | 2005-01-05 |
Family
ID=9549402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00410101A Expired - Lifetime EP1079200B9 (fr) | 1999-08-24 | 2000-08-23 | Dispositif pyrotechnique de connexion et de retard |
Country Status (6)
Country | Link |
---|---|
US (1) | US6499405B1 (fr) |
EP (1) | EP1079200B9 (fr) |
AT (1) | ATE279710T1 (fr) |
DE (1) | DE60014810T2 (fr) |
ES (1) | ES2228432T3 (fr) |
FR (1) | FR2797947B1 (fr) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030200891A1 (en) * | 2002-04-25 | 2003-10-30 | Yu Peter Sung Yan | Fireworks fuse connector |
FR2839146B1 (fr) | 2002-04-29 | 2006-12-15 | Francesco Ambrico | Dispositif pyrotechnique de retard |
ITGR20020002A1 (it) * | 2002-06-25 | 2003-12-29 | Carlo Monetti | Dispositivi per la realizzazione di catene piriche temporizzate con l'impiego di spolette o di spezzoni di miccia a lenta combustione di lun |
US6899033B2 (en) * | 2003-04-28 | 2005-05-31 | Jake's Fireworks, Inc. | Firecracker packaging |
US6916110B2 (en) * | 2003-05-29 | 2005-07-12 | Rene C. Batiste | Flame simulating devices for use with lights and method thereof |
DE20310900U1 (de) * | 2003-07-15 | 2003-10-02 | Voigt, Andreas, 09496 Marienberg | Anordnung zum Zünden und/oder Abfeuern pyrotechnischer Gegenstände und/oder Sätze |
ZA200703938B (en) * | 2007-05-16 | 2009-07-29 | Beijing Auxin Chemical Technol | Three-way connector block |
DE102007049070B4 (de) * | 2007-10-12 | 2010-04-08 | Weco Pyrotechnische Fabrik Gmbh | Rinnenartige Vorrichtung zur Verbindung mindestens zweier pyrotechnischer Leitungen und Feuerwerkskörperanordnung |
US20100300315A1 (en) * | 2007-12-03 | 2010-12-02 | Master Blaster Proprietary Limited | Multi-Port Transmission Line Connector |
DE102012014149B3 (de) * | 2012-07-18 | 2013-07-25 | Rheinmetall Waffe Munition Gmbh | Mechanisch verstellbares Verzögerungselement |
CN102927854A (zh) * | 2012-11-07 | 2013-02-13 | 浏阳市达浒花炮艺术焰火燃放集团有限公司 | 一种烟花用环保内筒 |
DE102013012363B3 (de) * | 2013-07-25 | 2014-06-05 | Marc Speer | Beschichtete pyrotechnische Vorrichtung |
CN105387777B (zh) * | 2015-10-30 | 2017-09-05 | 山东大学 | 一种光面爆破间隔装药切缝管 |
ES2904250B2 (es) | 2020-10-02 | 2022-09-16 | Garcia Gamon Anton Fernando | Una disposicion de encendido para multiples articulos pirotecnicos |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE168213C (fr) * | 1905-03-15 | |||
US2548946A (en) * | 1947-11-01 | 1951-04-17 | Kilgore Mfg Co | Pyrotechnic device |
US3169480A (en) * | 1962-05-01 | 1965-02-16 | Commercial Solvents Corp | Safety device for detonator cord |
US3368485A (en) * | 1966-04-08 | 1968-02-13 | Robert L. Klotz | Nonexplosive detonating fuse directional interrupter |
US3460477A (en) * | 1967-12-26 | 1969-08-12 | Explosive Tech | One-way detonation transfer device and assembly |
US4166418A (en) * | 1977-05-23 | 1979-09-04 | Austin Powder Company | Time delay primer and method of making same |
US4423682A (en) * | 1981-10-13 | 1984-01-03 | Mcdonnell Douglas Corporation | One-way explosive transfer assembly |
DE3614204A1 (de) * | 1986-04-26 | 1987-10-29 | Dynamit Nobel Ag | Sprengzeitzuender |
US4953464A (en) * | 1987-07-13 | 1990-09-04 | Atlas Powder Company | Multi-directional signal transmission in a blast initiation system |
US5086702A (en) * | 1990-04-12 | 1992-02-11 | Atlas Powder Company | Modular blasting system |
US5070789A (en) * | 1990-06-27 | 1991-12-10 | Cxa Ltd./Cxa Ltee | Electric exploding bridge wire initiators |
WO1993011089A1 (fr) * | 1991-11-27 | 1993-06-10 | Hadden William C | Matiere deflagrante a amorçage en surface |
US5192828A (en) * | 1992-03-13 | 1993-03-09 | The Ensign-Bickford Company | Detonating cord and blasting cap connector block having a resilient free end cord latch |
DE19514122A1 (de) * | 1994-04-27 | 1995-11-02 | Junghans Gmbh Geb | Einrichtung zum Zünden oder Sprengen mehrerer Objekte |
DE69531920T2 (de) * | 1994-08-31 | 2004-08-19 | Halliburton Energy Services, Inc., Dallas | Vorrichtung zum Verbinden von Perforatoren im Bohrloch |
ZA958348B (en) * | 1994-10-21 | 1996-07-12 | Ensign Bickford Co | Universal isolation member and non-electric detonator cap including the same |
SE505912C2 (sv) * | 1995-12-20 | 1997-10-20 | Nitro Nobel Ab | Pyroteknisk laddning för sprängkapslar |
-
1999
- 1999-08-24 FR FR9910880A patent/FR2797947B1/fr not_active Expired - Fee Related
-
2000
- 2000-08-23 ES ES00410101T patent/ES2228432T3/es not_active Expired - Lifetime
- 2000-08-23 US US09/644,092 patent/US6499405B1/en not_active Expired - Fee Related
- 2000-08-23 EP EP00410101A patent/EP1079200B9/fr not_active Expired - Lifetime
- 2000-08-23 AT AT00410101T patent/ATE279710T1/de not_active IP Right Cessation
- 2000-08-23 DE DE60014810T patent/DE60014810T2/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1079200A1 (fr) | 2001-02-28 |
FR2797947B1 (fr) | 2001-11-16 |
DE60014810T2 (de) | 2006-03-09 |
ES2228432T3 (es) | 2005-04-16 |
EP1079200B1 (fr) | 2004-10-13 |
ATE279710T1 (de) | 2004-10-15 |
US6499405B1 (en) | 2002-12-31 |
DE60014810D1 (de) | 2004-11-18 |
FR2797947A1 (fr) | 2001-03-02 |
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