EP1079200A1 - Pyrotechnic device for connection and delay - Google Patents
Pyrotechnic device for connection and delay Download PDFInfo
- Publication number
- EP1079200A1 EP1079200A1 EP00410101A EP00410101A EP1079200A1 EP 1079200 A1 EP1079200 A1 EP 1079200A1 EP 00410101 A EP00410101 A EP 00410101A EP 00410101 A EP00410101 A EP 00410101A EP 1079200 A1 EP1079200 A1 EP 1079200A1
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- EP
- European Patent Office
- Prior art keywords
- cylinder
- pyrotechnic device
- parts
- track
- wicks
- 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.)
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Classifications
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- 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 various pyrotechnic pieces for example rockets placed in mortars, are connected in clusters, i.e. the quick wick of each piece is connected to another wick directly or through a pyrotechnic delay, itself linked to another wick, to another delay, etc., to a point to which an igniter is connected electric. It might be easier to link directly each wick of each firework to a specific igniter and, by an electronic circuit, to control the instant each element. However, in practice, this is much too expensive and we prefer to use the system traditional wicks and pyrotechnic delays.
- Delay devices are of various types. he for example, slow wicks or Bickford cords. However, more generally, delays made up of powder packed in a cardboard cylinder because it is currently the cheapest device. Commonly, the connections between igniter, wicks and delay devices are provided by kraft paper sheaths and ligatures, these sheaths and ligatures then possibly being themselves ligated or nailed to wooden bars, for example the housing in which are arranged several mortars. The realization of such assembly is long and tedious. So generally proceeds to assemble the various elements in advance, workshop. In addition, such arrangements are not easily accessible to a non-professional user.
- the above delay devices also have the disadvantage of not making it possible to carry out any delay time. It is generally accepted that, with common powders, the length of the cardboard cylinder fixes the delay time which is around one second per centimeter. In practice, it is difficult to get relatively accurate delays from a duration less than 2 seconds or more than 5 to 6 seconds. Otherwise, you have to switch to slow strands of cord type. Bickford which are significantly more expensive.
- kraft paper assemblies are subject to malfunctions in case of heavy rain. Then protect the various delay devices and the various arrangements.
- delay systems produce strong flames on one side of the cylinder when the delay begins to ignite and on both sides when the flame reaches the other end of the delay. These strong flames are likely ignite wicks or delay devices located proximity. This requires taking extra precautions and further complicates the assembly.
- 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 set up works 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 with internal walls coated a highly flammable material; means for blocking one or more several wicks in each part; and means of communication between the two parties.
- Figure 1A is a sectional view of a first mode of embodiment of the present invention consisting of a cylinder hollow 1 whose internal walls 2 are coated with a material highly flammable, preferably a powdery product which ignites very easily inside a cavity. This product is for example black powder stuck.
- a means 3 for holding a wick At each end of the cylinder 1 is mounted a means 3 for holding a wick.
- this holding means is represented in the form of a cap.
- the cylinder 1 is made of plastic as well as the caps 3.
- FIG. 1B represents an end view of an example of cap.
- the flat part of the cap is for example a sheet thin, elastic plastic material cut into a star for form tongues whose tip is substantially in point of intersection of the sheet and the axis of the cylinder. So, when a drill bit is pressed towards the inside of the cylinder, the elementary tongues deform and bend inward, opposing removal of the wick.
- Figure 1C shows the device of Figure 1A also in a sectional view, in the case where wicks 4 and 5 are respectively inserted in the left part 6 and in the straight part 7 of the cylinder.
- the wicks can be more or less sunken and go or not until joining.
- FIG. 1D illustrates an alternative embodiment of the wick holding means 3 according to the present invention.
- This medium takes the form of a flange 8 provided with turned teeth inward and fixed at point 9 at one end of the tube 1.
- the free ends of the collar are provided with means additional fixing 10, for example by clipping, for tighten the flange against a wick and the walls of the tube.
- This embodiment allows better adaptation to wicks relatively hard and of large diameter.
- the device according to the first embodiment of the present invention allows the connection between two locks.
- wick 4 Once wick 4 has been lit, it transmits flames inside the cylinder which can ignite directly the end of the opposite wick 5.
- the wick 4 causes the powder placed on the internal walls 2 and the flame created by this powder causes the second wick 5 to ignite if a conflagration direct did not happen.
- the cylinders 1 and their caps 3 can be sized so that we can introduce each end one or more wicks. We can also let a wick penetrate on one side and an igniter on the other side electric or bring in a wick and a side igniter and on the other side one or more wicks to be able propagate the flame communicated by the igniter simultaneously with several wicks.
- Figure 2 shows a sectional view of a second embodiment of the present invention ensuring a connection function between wicks with a non-zero delay.
- the device according to the second embodiment of this invention comprises two cylindrical parts 11 and 12 embedded one inside the other.
- the internal cavity of the inner cylinder 11 is divided into two parts 13 and 14 by a partition 15.
- the internal walls of each of the two parts 13 and 14 are, as in the case of the first embodiment of the present invention, coated with highly flammable material 2.
- the outer wall of the internal cylinder 11 is provided with a grooving, for example helical similar to a thread, forming a track 16 which communicates by 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 holes 17 and 18 is filled with a material allowing, when lit at one end, to spread the flame toward the other end, at a substantially linear speed constant. This will be, for example, packed black powder or a specific cord such as a fine slow wick manufactured by the Bickford company.
- end caps 3 allow insertion and locking of wicks 4 and 5 in each of the cavity parts 13 and 14.
- wick 4 or an igniter replacing wick 4 brings a flame to be created in the left part 13, this flame ignites the powder placed on the walls of this part 13.
- FIG. 3 represents an alternative embodiment of the device of FIG. 2, constituting a third mode of realization of the present invention.
- the device comprises an internal cylinder 21 and an external 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 passing through the walls of the cavity parts 23 and 24.
- the partition 25 can be opened. arrives at a structure very similar to that of the first embodiment of the invention.
- FIG. 3 A lock / lock system for wicks different from that of FIGS. 1 and 2 is also illustrated in FIG. 3.
- the outer tube 22 overflows on either side of the inner tube 21 and has in the overhanging part an annular groove 29 intended to receive a disc 30 for blocking a wick.
- This disc may have in view at the end, a look similar to that of Figures 1 and 2.
- the Figure 3 device has larger slots between the elementary tabs, and that the central part is cut out.
- a disc made of a material flexible metal According to another variant of the present invention, not shown, the support system may be made up of molded plastic tabs ends of the inner cylinder.
- FIG. 4 represents a fourth embodiment of the present invention.
- the left side of the figure has a device similar to that of FIG. 2 in which same elements have been designated by the same references.
- the part right 14 of the cavity located on the right of the partition 15 extends by dividing into several cylinders 31 to 34, of which each is intended to receive a wick 35 to 38.
- FIGS. 5A and 5B show in side view and in front view a fifth embodiment of this invention.
- the left part of the device of FIG. 5A is similar to that of figure 4.
- the device instead of dividing into several cylinders, flares in a fan 41, its end face comprising a system 42 of anti-removal lock of several wicks that can be inserted parallel.
- the present invention provides a device for particularly simple, reliable, adjustable and safe delay. Moreover, this device can be relatively low cost, can be manufactured in large series in plastic ...
- Figure 6 shows a sixth embodiment of the present invention in which the same pyrotechnic device delay may, at the option of the user, achieve one of several predetermined delays.
- This device comprises an internal tube 50, a tube intermediate 60 and an outer tube 70.
- the internal tube 50 like the tube 1 in FIG. 1, the tube 11 of figure 2 or the tube 21 of figure 3 has its walls internal coated with 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 either side of the partition.
- the intermediate tube 60 is a tube on the surface external of which several longitudinal tracks 61, 62, 63 are formed in the example shown, the ends of which have openings 61-1, 61-2, 62-1, 62-2 and 63-1, 63-2. These openings pass through the tube 60.
- the device comprises an external tube 70 of protection.
- the outer tube 70 is mounted fixed relative to the tube intermediate 60 which can rotate relative to the internal 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.
- a first mark 54 is formed on the outer edge of the inner tube, which is for example slightly longer than the intermediate tube, to facilitate its gripping and setting rotation.
- the intermediate tube is provided with second marks, preferably at its two ends, respectively 61-0, 62-0 and 63-0.
- a track 65 extends between the ends of the tracks 61, 62, 63 on the side opposite the side where ignition normally occurs. So, once a track has been lit and has played its delay, ignition spreads to other tracks and powder they contain is burnt, which prevents the device, once used, may present any danger.
- FIG. 7 represents a variant of the sixth mode of realization of the present invention.
- paired openings 56, 57, 58 are provided intended to cooperate with corresponding openings of the tube intermediate.
- the openings in the intermediate tube can be those represented in figure 6. It can also be the openings of a helical track 71 shown in FIG. 7.
- the benchmarks must be identified. Preferably they will identified by the same colors or the same indications.
- This sixth embodiment of the present invention may appear more complex than the embodiments described 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 can be used to achieve various delays. Besides, it will no longer arise, for the user, the problem of having to store ranges of delay devices.
- the present invention is capable of various variants and modifications which will appear to the man of art.
- the various embodiments described can be combined; for example the multi-connection systems of FIGS. 4 and 5 can be adapted to the first embodiment of the invention.
Abstract
Description
La présente invention concerne le domaine de la pyrotechnie.The present invention relates to the field of pyrotechnics.
Quand on veut déclencher un feu d'artifice, on cherche à minimiser le nombre d'allumages de pièces pyrotechniques individuelles, telles que des fusées, des fontaines lumineuses, des bougies, etc. Ainsi, les diverses pièces pyrotechniques, par exemple des fusées placées dans des mortiers, sont connectées en grappes, c'est-à-dire que la mèche rapide de chaque pièce est reliée à une autre mèche directement ou par l'intermédiaire d'un retard pyrotechnique, lui-même lié à une autre mèche, à un autre retard, etc., jusqu'à un point auquel on relie un allumeur électrique. Il serait peut-être plus simple de relier directement chaque mèche de chaque pièce pyrotechnique à un allumeur spécifique et, par un circuit électronique, de commander l'instant d'allumage de chaque élément. Néanmoins, en pratique, ceci s'avère beaucoup trop cher et l'on préfère utiliser le système traditionnel à mèches et retards pyrotechniques.When we want to start a firework, we look to minimize the number of ignitions of pyrotechnics individual, such as rockets, light fountains, candles, etc. Thus, the various pyrotechnic pieces, for example rockets placed in mortars, are connected in clusters, i.e. the quick wick of each piece is connected to another wick directly or through a pyrotechnic delay, itself linked to another wick, to another delay, etc., to a point to which an igniter is connected electric. It might be easier to link directly each wick of each firework to a specific igniter and, by an electronic circuit, to control the instant each element. However, in practice, this is much too expensive and we prefer to use the system traditional wicks and pyrotechnic delays.
Les dispositifs de retard sont de divers types. Il s'agira par exemple de mèches lentes ou cordons Bickford. Toutefois, plus généralement, on utilise des retards constitués de poudre tassée dans un cylindre de carton car c'est actuellement le dispositif le moins cher. Couramment, les liaisons entre allumeur, mèches et dispositifs de retard sont assurées par des gaines de papier kraft et des ligatures, ces gaines et ces ligatures étant ensuite éventuellement elles-mêmes ligaturées ou clouées sur des barrettes en bois, par exemple le boítier dans lequel sont disposés plusieurs mortiers. La réalisation d'un tel montage est longue et fastidieuse. Ainsi, de façon générale, on procède à l'assemblage des divers éléments à l'avance, en atelier. En outre, de tels montages sont peu accessibles à un utilisateur non professionnel.Delay devices are of various types. he for example, slow wicks or Bickford cords. However, more generally, delays made up of powder packed in a cardboard cylinder because it is currently the cheapest device. Commonly, the connections between igniter, wicks and delay devices are provided by kraft paper sheaths and ligatures, these sheaths and ligatures then possibly being themselves ligated or nailed to wooden bars, for example the housing in which are arranged several mortars. The realization of such assembly is long and tedious. So generally proceeds to assemble the various elements in advance, workshop. In addition, such arrangements are not easily accessible to a non-professional user.
Les dispositifs de retard ci-dessus présentent aussi l'inconvénient de ne pas permettre de réaliser n'importe quelle durée de retard. On admet généralement que, avec les poudres courantes, la longueur du cylindre en carton fixe la durée du retard qui est de l'ordre d'une seconde par centimètre. En pratique, il est difficile d'obtenir des retards relativement précis d'une durée inférieure à 2 secondes ou supérieure à 5 à 6 secondes. Sinon, il faut passer à des mèches lentes de type cordons Bickford qui sont nettement plus coûteuses.The above delay devices also have the disadvantage of not making it possible to carry out any delay time. It is generally accepted that, with common powders, the length of the cardboard cylinder fixes the delay time which is around one second per centimeter. In practice, it is difficult to get relatively accurate delays from a duration less than 2 seconds or more than 5 to 6 seconds. Otherwise, you have to switch to slow strands of cord type. Bickford which are significantly more expensive.
De plus, les assemblages à papier kraft sont sujets à de mauvais fonctionnements en cas de fortes pluies. Il faut alors protéger les divers dispositifs de retard et les divers montages.In addition, kraft paper assemblies are subject to malfunctions in case of heavy rain. Then protect the various delay devices and the various arrangements.
En outre, les systèmes de retard produisent de fortes flammes d'un côté du cylindre quand le retard commence à s'enflammer et des deux côtés quand la flamme arrive à l'autre extrémité du retard. Ces fortes flammes sont susceptibles d'enflammer des mèches ou des dispositifs de retard situés à proximité. Cela impose de prendre des précautions supplémentaires et complique encore le montage.In addition, delay systems produce strong flames on one side of the cylinder when the delay begins to ignite and on both sides when the flame reaches the other end of the delay. These strong flames are likely ignite wicks or delay devices located proximity. This requires taking extra precautions and further complicates the assembly.
Ainsi, un objet de la présente invention est de prévoir un système de connexion et de retard entre mèches ou entre allumeur et mèche(s) qui soit particulièrement simple à mettre en oeuvre et qui permette d'atteindre des retards de durées choisies, par exemple allant d'une durée nulle à des durées de l'ordre d'une minute ou plus. Thus, 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 set up works 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.
Un autre objet de la présente invention est de prévoir un tel système permettant de sélectionner un retard d'une durée choisie parmi plusieurs durées prédéterminées.Another object of the present invention is to provide such a system for selecting a delay of a duration chosen from several predetermined durations.
Pour atteindre ces objets, la présente invention prévoit un dispositif pyrotechnique de connexion et de retard entre mèches et/ou entre allumeur et mèches, comprenant une cavité divisée en deux parties dont les parois internes sont revêtues d'un matériau très inflammable ; des moyens de blocage d'une ou plusieurs mèches dans chacune des parties ; et des moyens de communication entre les deux parties.To achieve these objects, 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 with internal walls coated a highly flammable material; means for blocking one or more several wicks in each part; and means of communication between the two parties.
Des modes de réalisation particuliers de la présente invention sont indiqués dans les revendications dépendantes.Particular embodiments of this invention are set out in the dependent claims.
Ces objets, caractéristiques et avantages, ainsi que
d'autres de la présente invention seront exposés en détail dans
la description suivante de modes de réalisation particuliers
faite à titre non-limitatif en relation avec les figures jointes
parmi lesquelles :
La figure 1A est une vue en coupe d'un premier mode de
réalisation de la présente invention constitué d'un cylindre
creux 1 dont les parois internes 2 sont revêtues d'un matériau
très inflammable, de préférence un produit pulvérulent s'enflammant
très facilement à l'intérieur d'une cavité. Ce produit est
par exemple de la poudre noire collée.Figure 1A is a sectional view of a first mode of
embodiment of the present invention consisting of a
A chacune des extrémités du cylindre 1 est monté un
moyen 3 de maintien d'une mèche. Dans le mode de réalisation de
la figure 1A, ce moyen de maintien est représenté sous forme d'un
capuchon. De préférence, le cylindre 1 est en matière plastique
de même que les capuchons 3.At each end of the
La figure 1B représente une vue en bout d'un exemple de capuchon. La partie plane du capuchon est par exemple une feuille de matière plastique mince et élastique découpée en étoile pour former des languettes dont la pointe est sensiblement au point d'intersection de la feuille et de l'axe du cylindre. Ainsi, quand une mèche est enfoncée vers l'intérieur du cylindre, les languettes élémentaires se déforment et se courbent vers l'intérieur, s'opposant à un retrait de la mèche.FIG. 1B represents an end view of an example of cap. The flat part of the cap is for example a sheet thin, elastic plastic material cut into a star for form tongues whose tip is substantially in point of intersection of the sheet and the axis of the cylinder. So, when a drill bit is pressed towards the inside of the cylinder, the elementary tongues deform and bend inward, opposing removal of the wick.
La figure 1C représente le dispositif de la figure 1A
également dans une vue en coupe, dans le cas où des mèches 4 et 5
sont respectivement insérées dans la partie gauche 6 et dans la
partie droite 7 du cylindre. Les mèches peuvent être plus ou
moins enfoncées et aller ou non jusqu'à se rejoindre. On a représenté
les languettes des capuchons 3 déformées vers l'intérieur
et l'on conçoit bien que ceci s'oppose à un arrachement des
mèches en exerçant une force raisonnable. Bien entendu, il sera
toujours possible, en utilisant un outil de déblocage ou en
tirant suffisamment fort, d'arracher les mèches si cela est
nécessaire.Figure 1C shows the device of Figure 1A
also in a sectional view, in the case where
La figure 1D illustre une variante de réalisation du
moyen de maintien de mèche 3 selon la présente invention. Ce
moyen prend la forme d'une collerette 8 munie de dents tournées
vers l'intérieur et fixée en un point 9 à une extrémité du tube
1. Les extrémités libres de la collerette sont munies de moyens
de fixation complémentaires 10, par exemple par enclipsage, pour
serrer la collerette contre une mèche et les parois du tube. Ce
mode de réalisation permet de mieux s'adapter à des mèches
relativement dures et de gros diamètre.FIG. 1D illustrates an alternative embodiment of the
wick holding means 3 according to the present invention. This
medium takes the form of a flange 8 provided with turned teeth
inward and fixed at point 9 at one end of the
Le dispositif selon le premier mode de réalisation de
la présente invention permet la liaison entre deux mèches. Par
exemple, une fois que la mèche 4 a été allumée, elle transmet des
flammes à l'intérieur du cylindre qui peuvent enflammer directement
l'extrémité de la mèche opposée 5. En outre, la mèche 4
provoque l'allumage extrêmement rapide de la poudre disposée sur
les parois internes 2 et la flamme créée par cette poudre
provoque l'allumage de la deuxième mèche 5 si un embrasement
direct ne s'est pas produit.The device according to the first embodiment of
the present invention allows the connection between two locks. Through
example, once
On notera que les cylindres 1 et leurs capuchons 3
peuvent être dimensionnés pour que l'on puisse introduire à
chaque extrémité une ou plusieurs mèches. On pourra également
faire pénétrer d'un côté une mèche et de l'autre côté un allumeur
électrique ou encore faire rentrer d'un côté une mèche et un
allumeur et de l'autre côté une ou plusieurs mèches pour pouvoir
propager la flamme communiquée par l'allumeur simultanément à
plusieurs mèches.Note that the
La figure 2 représente une vue en coupe d'un deuxième
mode de réalisation de la présente invention assurant une
fonction de connexion entre mèches avec un retard non nul. Le
dispositif selon le deuxième mode de réalisation de la présente
invention comprend deux pièces cylindriques 11 et 12 encastrées
l'une dans l'autre. La cavité interne du cylindre intérieur 11
est divisée en deux parties 13 et 14 par une cloison 15. Les
parois internes de chacune des deux parties 13 et 14 sont, comme
dans le cas du premier mode de réalisation de la présente invention,
revêtues d'un matériau très inflammable 2. La paroi externe
du cylindre interne 11 est munie d'un rainurage, par exemple
hélicoïdal analogue à un filetage, formant une piste 16 qui
communique par une première extrémité avec un orifice 17 dans la
paroi de la partie gauche 13 de la cavité interne du cylindre 11
et par une seconde extrémité avec un orifice 18 dans la paroi de
la partie droite 14 de la cavité interne du cylindre 11. La piste
16 formée entre les orifices 17 et 18 est remplie d'un matériau
permettant, quand il est allumé à une extrémité, de propager la
flamme vers l'autre extrémité, à une vitesse linéaire sensiblement
constante. Il s'agira par exemple de poudre noire tassée ou
d'un cordon spécifique tel qu'une mèche lente fine fabriquée par
la société Bickford.Figure 2 shows a sectional view of a second
embodiment of the present invention ensuring a
connection function between wicks with a non-zero delay. The
device according to the second embodiment of this
invention comprises two
Comme dans le cas du premier mode de réalisation, des
capuchons d'extrémité 3 permettent l'insertion et le blocage de
mèches 4 et 5 dans chacune des parties de cavité 13 et 14. Ainsi,
quand la mèche 4, ou un allumeur remplaçant la mèche 4, amène une
flamme à se créer dans la partie gauche 13, cette flamme allume
la poudre disposée sur les parois de cette partie 13. La flamme
se propage dans de la poudre disposée dans l'orifice 17 et le
long de la piste 16, arrive à l'orifice 18, enflamme la poudre
disposée sur les parois de la partie droite 14 de la cavité, et
déclenche l'allumage de la mèche 5.As in the case of the first embodiment,
Le dispositif illustré en figure 2 présente de nombreux
avantages par rapport à un retard pyrotechnique classique :
La figure 3 représente une variante de réalisation du
dispositif de la figure 2, constituant un troisième mode de
réalisation de la présente invention. En figure 3, le dispositif
comprend un cylindre interne 21 et un cylindre externe 22. La cavité
interne est divisée en deux parties 23 et 24 par une cloison
25. Une piste rectiligne courte 26 s'étend entre des orifices 27
et 28 traversant les parois des parties de cavité 23 et 24.FIG. 3 represents an alternative embodiment of the
device of FIG. 2, constituting a third mode of
realization of the present invention. In Figure 3, the device
comprises an
Dans le mode de réalisation de la figure 3, si l'on
veut encore raccourcir le retard entre la partie gauche et la
partie droite du cylindre 21, on peut ouvrir la cloison 25. On
arrive alors à une structure très similaire à celle du premier
mode de réalisation de l'invention.In the embodiment of FIG. 3, if one
still wants to shorten the delay between the left side and the
right side of
Un système de maintien/blocage des mèches différent de
celui des figures 1 et 2 est également illustré en figure 3.
Cette variante pourrait être utilisée dans les autres modes de
réalisation de la présente invention. Comme le montre la figure
3, le tube externe 22 déborde de part et d'autre du tube interne
21 et comporte dans la partie en débordement une rainure annulaire
29 destinée à recevoir un disque 30 de blocage d'une mèche.
Ce disque pourra avoir en vue en bout, une allure similaire à
celle des figures 1 et 2. On pourra également choisir que le
dispositif de la figure 3 présente des fentes plus importantes
entre les languettes élémentaires, et que la partie centrale soit
découpée. On pourra également choisir un disque en un matériau
métallique souple. Selon une autre variante de la présente invention,
non représentée, le système de maintien pourra être
constitué de languettes de matière plastique moulée solidaires
des extrémités du cylindre interne.A lock / lock system for wicks different from
that of FIGS. 1 and 2 is also illustrated in FIG. 3.
This variant could be used in other modes of
realization of the present invention. As shown in the figure
3, the
La figure 4 représente un quatrième mode de réalisation
de la présente invention. La partie gauche de la figure comporte
un dispositif similaire à celui de la figure 2 dans lequel de
mêmes éléments ont été désignés par de mêmes références. La partie
droite 14 de la cavité située à droite de la cloison 15 se
prolonge en se divisant en plusieurs cylindres 31 à 34, dont
chacun est destiné à recevoir une mèche 35 à 38.FIG. 4 represents a fourth embodiment
of the present invention. The left side of the figure has
a device similar to that of FIG. 2 in which
same elements have been designated by the same references. The part
right 14 of the cavity located on the right of the
Les figures 5A et 5B représentent en vue de côté et en
vue de face un cinquième mode de réalisation de la présente
invention. La partie gauche du dispositif de la figure 5A est
similaire à celle de la figure 4. Du côté droit de la figure, le
dispositif, au lieu de se diviser en plusieurs cylindres, s'évase
en un éventail 41, sa face extrême comprenant un système 42 de
blocage anti-retrait de plusieurs mèches que l'on peut insérer en
parallèle.FIGS. 5A and 5B show in side view and in
front view a fifth embodiment of this
invention. The left part of the device of FIG. 5A is
similar to that of figure 4. On the right side of the figure, the
device, instead of dividing into several cylinders, flares
in a
Ainsi, la présente invention fournit un dispositif de retard particulièrement simple, fiable, réglable et sûr. De plus, ce dispositif peut être de relativement faible coût, être fabriqué en grande série en matière plastique...Thus, the present invention provides a device for particularly simple, reliable, adjustable and safe delay. Moreover, this device can be relatively low cost, can be manufactured in large series in plastic ...
La figure 6 représente un sixième mode de réalisation de la présente invention dans lequel un même dispositif pyrotechnique de retard peut, au choix de l'utilisateur, réaliser l'un de plusieurs retards prédéterminés.Figure 6 shows a sixth embodiment of the present invention in which the same pyrotechnic device delay may, at the option of the user, achieve one of several predetermined delays.
Ce dispositif comprend un tube interne 50, un tube
intermédiaire 60 et un tube externe 70.This device comprises an
Le tube interne 50, comme le tube 1 de la figure 1, le
tube 11 de la figure 2 ou le tube 21 de la figure 3 a ses parois
internes revêtues d'un matériau très inflammable 2. Ce tube 50
est divisé en deux parties par une cloison interne 51. Il
comprend des ouvertures traversantes 52 et 53 de part et d'autre
de la cloison. The
Le tube intermédiaire 60 est un tube sur la surface
externe duquel sont formées plusieurs pistes 61, 62, 63, longitudinales
dans l'exemple représenté, dont les extrémités comportent
des ouvertures 61-1, 61-2, 62-1, 62-2 et 63-1, 63-2. Ces ouvertures
traversent le tube 60.The
Enfin, le dispositif comprend un tube externe 70 de
protection.Finally, the device comprises an
Le tube externe 70 est monté fixe par rapport au tube
intermédiaire 60 qui peut tourner par rapport au tube interne 50.
Divers moyens pourront être prévus pour que, après montage, le
tube interne puisse tourner par rapport au tube intermédiaire
tout en étant maintenu axialement.The
Quand les fentes 52, 53 sont, par exemple, en regard
des ouvertures 61-1, 61-2, si une mèche est allumée du côté de
l'ouverture 61-1, l'allumage est transmis avec un retard
déterminé par la piste 61 vers l'ouverture 61-2. En faisant
tourner le tube interne par rapport au tube intermédiaire, on
peut sélectionner l'un des retards 62 ou 63 ou un autre retard
non représenté disposé sur la face non visible du cylindre intermédiaire.When the
Un premier repère 54 est formé sur le bord externe du
tube interne, qui est par exemple légèrement plus long que le
tube intermédiaire, pour faciliter sa préhension et sa mise en
rotation. Le tube intermédiaire est muni de seconds repères, de
préférence à ses deux extrémités, respectivement 61-0, 62-0 et
63-0. Par tout moyen, on peut indiquer en regard de ces repères,
la durée du retard correspondant. On pourra par exemple inscrire
les durées des retards ou utiliser divers codes de couleurs.A
Selon une variante de l'invention, illustrée en figure
6, une piste 65 s'étend entre les extrémités des pistes 61, 62,
63 du côté opposé au côté où se produit normalement l'allumage.
Ainsi, un fois qu'une piste a été allumée et a joué son effet de
retard, l'allumage se propage vers les autres pistes et la poudre
qu'elles contiennent est brûlée, ce qui évite que le dispositif,
une fois utilisé, puisse présenter un danger quelconque. According to a variant of the invention, illustrated in figure
6, a
La figure 7 représente une variante du sixième mode de
réalisation de la présente invention. Au lieu de prévoir dans le
tube interne 50 des rainures 52, 53 de part et d'autre de la
cloison 51, on prévoit des ouvertures appariées 56, 57, 58
destinées à coopérer avec des ouvertures correspondantes du tube
intermédiaire. Les ouvertures du tube intermédiaire peuvent être
celles représentées en figure 6. Ce peut aussi être les ouvertures
d'une piste hélicoïdale 71 représentée en figure 7. Dans ce
mode de réalisation, il faudra prévoir un nombre de repères identiques
59 du côté du tube interne et 72 du côté du tube externe.
Les repères devront être identifiés. De préférence ils seront
identifiés par de mêmes couleurs ou de mêmes indications.FIG. 7 represents a variant of the sixth mode of
realization of the present invention. Instead of providing in the
A titre de variante, dans le cadre de la figure 7, on n'a pas représenté de tube de protection externe. En effet, ce tube pourrait être remplacé par un vernis ou un trempage de la pièce du cylindre intermédiaire dans une substance en matière plastique susceptible de polymériser.As a variant, in the context of FIG. 7, we did not show an external protective tube. Indeed, this tube could be replaced with varnish or soaking the intermediate cylinder part in a material substance plastic likely to polymerize.
Ce sixième mode de réalisation de la présente invention peut paraítre plus complexe que les modes de réalisation décrits précédemment. Toutefois, le coût de fabrication d'un tel dispositif sera plus faible que les autres car il pourrait être fabriqué en très grande série, un même dispositif pouvant être utilisé pour réaliser différents retards. En outre, il ne se posera plus, pour l'utilisateur, le problème d'avoir à stocker des gammes de dispositifs de retard.This sixth embodiment of the present invention may appear more complex than the embodiments described previously. However, 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 can be used to achieve various delays. Besides, it will no longer arise, for the user, the problem of having to store ranges of delay devices.
Bien entendu, la présente invention est susceptible de diverses variantes et modifications qui apparaítront à l'homme de l'art. En particulier, on peut, dans certain cas, prévoir sur un même dispositif plusieurs pistes dont l'une ou l'autre peut être remplie de matière inflammable, de sorte que, avec une même pièce en matière plastique, on peut réaliser plusieurs retards. De plus les divers mode de réalisation décrits peuvent être combinés ; par exemple les systèmes multiraccord des figures 4 et 5 peuvent être adaptés au premier mode de réalisation de l'invention.Of course, the present invention is capable of various variants and modifications which will appear to the man of art. In particular, it is possible, in certain cases, to provide on a same device several tracks of which one or the other can be filled with flammable material, so that with one piece in plastic, there can be several delays. Moreover the various embodiments described can be combined; for example the multi-connection systems of FIGS. 4 and 5 can be adapted to the first embodiment of the invention.
Claims (10)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9910880 | 1999-08-24 | ||
FR9910880A FR2797947B1 (en) | 1999-08-24 | 1999-08-24 | PYROTECHNIC DEVICE FOR CONNECTION AND DELAY |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1079200A1 true EP1079200A1 (en) | 2001-02-28 |
EP1079200B1 EP1079200B1 (en) | 2004-10-13 |
EP1079200B9 EP1079200B9 (en) | 2005-01-05 |
Family
ID=9549402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00410101A Expired - Lifetime EP1079200B9 (en) | 1999-08-24 | 2000-08-23 | Pyrotechnic device for connection and delay |
Country Status (6)
Country | Link |
---|---|
US (1) | US6499405B1 (en) |
EP (1) | EP1079200B9 (en) |
AT (1) | ATE279710T1 (en) |
DE (1) | DE60014810T2 (en) |
ES (1) | ES2228432T3 (en) |
FR (1) | FR2797947B1 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2839146A1 (en) | 2002-04-29 | 2003-10-31 | Francesco Ambrico | PYROTECHNIC DELAY DEVICE |
WO2014012816A1 (en) * | 2012-07-18 | 2014-01-23 | Rheinmetall Waffe Munition Gmbh, Patente | Mechanically adjustable delay element |
WO2022069784A1 (en) | 2020-10-02 | 2022-04-07 | Garcia Gamon Anton Fernando | Ignition arrangement for multiple pyrotechnic articles |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20030200891A1 (en) * | 2002-04-25 | 2003-10-30 | Yu Peter Sung Yan | Fireworks fuse connector |
ITGR20020002A1 (en) * | 2002-06-25 | 2003-12-29 | Carlo Monetti | DEVICES FOR THE PRODUCTION OF TIMED PYRICAL CHAINS WITH THE USE OF SPOOLS OR LONG COMBUSTION WEDDING BUCKETS OF 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 (en) * | 2003-07-15 | 2003-10-02 | Voigt Andreas | Arrangement for igniting and / or firing pyrotechnic articles and / or sets |
ZA200703938B (en) * | 2007-05-16 | 2009-07-29 | Beijing Auxin Chemical Technol | Three-way connector block |
DE102007049070B4 (en) * | 2007-10-12 | 2010-04-08 | Weco Pyrotechnische Fabrik Gmbh | Channel-like device for connecting at least two pyrotechnic lines and fireworks arrangement |
WO2009076682A2 (en) * | 2007-12-03 | 2009-06-18 | Master Blaster Proprietary Limited | Multi-port transmission line connector |
CN102927854A (en) * | 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 | Environment-friendly inner barrel for fireworks |
DE102013012363B3 (en) * | 2013-07-25 | 2014-06-05 | Marc Speer | Coated device for generating pyrotechnic effects, used for e.g. ignition of light images, has substrate that is provided with pyrotechnic layers equipped with respective pyrotechnic ignition zone and pyrotechnic effect area |
CN105387777B (en) * | 2015-10-30 | 2017-09-05 | 山东大学 | A kind of photoface exploision spaced loading joint-cutting pipe |
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-
2000
- 2000-08-23 DE DE60014810T patent/DE60014810T2/en not_active Expired - Lifetime
- 2000-08-23 US US09/644,092 patent/US6499405B1/en not_active Expired - Fee Related
- 2000-08-23 ES ES00410101T patent/ES2228432T3/en not_active Expired - Lifetime
- 2000-08-23 EP EP00410101A patent/EP1079200B9/en not_active Expired - Lifetime
- 2000-08-23 AT AT00410101T patent/ATE279710T1/en not_active IP Right Cessation
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FR353200A (en) * | 1905-03-15 | 1905-09-05 | Harold Irwin | Warning |
US2548946A (en) * | 1947-11-01 | 1951-04-17 | Kilgore Mfg Co | Pyrotechnic device |
US4166418A (en) * | 1977-05-23 | 1979-09-04 | Austin Powder Company | Time delay primer and method of making same |
DE19514122A1 (en) * | 1994-04-27 | 1995-11-02 | Junghans Gmbh Geb | Appts. for detonation or explosion of objects at different locations |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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FR2839146A1 (en) | 2002-04-29 | 2003-10-31 | Francesco Ambrico | PYROTECHNIC DELAY DEVICE |
WO2003095934A1 (en) * | 2002-04-29 | 2003-11-20 | Francesco Ambrico | Pyrotechnic device with ignition delay |
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WO2014012816A1 (en) * | 2012-07-18 | 2014-01-23 | Rheinmetall Waffe Munition Gmbh, Patente | Mechanically adjustable delay element |
WO2022069784A1 (en) | 2020-10-02 | 2022-04-07 | Garcia Gamon Anton Fernando | Ignition arrangement for multiple pyrotechnic articles |
Also Published As
Publication number | Publication date |
---|---|
FR2797947A1 (en) | 2001-03-02 |
DE60014810T2 (en) | 2006-03-09 |
EP1079200B1 (en) | 2004-10-13 |
ATE279710T1 (en) | 2004-10-15 |
US6499405B1 (en) | 2002-12-31 |
EP1079200B9 (en) | 2005-01-05 |
ES2228432T3 (en) | 2005-04-16 |
FR2797947B1 (en) | 2001-11-16 |
DE60014810D1 (en) | 2004-11-18 |
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