EP1582321A1 - Device for the cutting of an automotive structure - Google Patents

Device for the cutting of an automotive structure Download PDF

Info

Publication number
EP1582321A1
EP1582321A1 EP05290641A EP05290641A EP1582321A1 EP 1582321 A1 EP1582321 A1 EP 1582321A1 EP 05290641 A EP05290641 A EP 05290641A EP 05290641 A EP05290641 A EP 05290641A EP 1582321 A1 EP1582321 A1 EP 1582321A1
Authority
EP
European Patent Office
Prior art keywords
tube
pyrotechnic charge
groove
cutting
charge
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
Application number
EP05290641A
Other languages
German (de)
French (fr)
Other versions
EP1582321B1 (en
Inventor
Evrard Borg
Eric Laspesa
Laurent D'emmanuelle
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Safran Ceramics SA
Original Assignee
Pyroalliance SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Pyroalliance SA filed Critical Pyroalliance SA
Publication of EP1582321A1 publication Critical patent/EP1582321A1/en
Application granted granted Critical
Publication of EP1582321B1 publication Critical patent/EP1582321B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/04—Severing by squeezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
    • F42B15/36—Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B15/00—Self-propelled projectiles or missiles, e.g. rockets; Guided missiles
    • F42B15/36—Means for interconnecting rocket-motor and body section; Multi-stage connectors; Disconnecting means
    • F42B15/38—Ring-shaped explosive elements for the separation of rocket parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/006—Explosive bolts; Explosive actuators

Definitions

  • the technical field of the invention is that of automotive safety involving cutting a structure like, for example, a table on board, in order to put into action a security.
  • Cutting devices according to the invention are particularly suitable for the implementation of protective cushions in a motor vehicle.
  • EP 0 273 061 which describes a separation joint between two structures and involving a linear explosive charge confined in a tube flattened.
  • the two structures fit together in one the other and the firing of the explosive charge causes an expansion of the tube which then deforms one of the two structures that lead to their dissociation.
  • Load explosive is not specifically described but the description reveals some clues that leave think it's an explosive charge.
  • the separation device disclosed in US Patent 6,170,400 or in US Patent 5,372,071 puts in play a detonating cord whose firing goes cause the deformation of the tube in which it is housed to push a piston to separate two subsets.
  • US Pat. No. 5,478,106 which describes an opening system for deploying a airbag.
  • This opening system includes a deformed tube having a tapered portion and in which is housed a linear pyrotechnic charge. The firing of said load causes the tube to expand tapered part comes in contact with the structure for the cut.
  • the cutting devices according to the invention make intervene in the explosion-proof cords, housed in flattened tubes and their firing causes expansion the section of said tubes for cutting a structure.
  • Explosion cords have reaction speeds slower than those of detonating cords and by therefore, the associated pyrotechnic effects are less violent and in particular, the risks of projection of shrapnel and emission of a shock wave aerial outward of said devices become negligible.
  • Cutting devices according to the invention are particularly suitable for vehicles automobiles to the extent that they are reliable and effective, while providing a level of security increased by limiting the intensity of the reaction and therefore the potential for bodily injury.
  • the subject of the present invention relates to a cutting device of a structure in a automobile comprising a linear pyrotechnic charge placed in a flattened deformable tube, the combustion of said load causing the deformation of the tube which increases its section, said deformation causing the rupture of the structure, characterized in that the burning rate of the pyrotechnic charge is less than 3000m / s.
  • This equivalence is desirable because a deflagration although defining a reaction more long and less violent than a detonation remains relatively undefined as to the value of certain parameters that characterize it.
  • the burning speed of the pyrotechnic charge is between 1000m / s and 2000m / s.
  • Explosive charges retained for cutting devices according to the invention are bright enough to cause cutting of a structure in a motor vehicle, without present the inconvenience associated with the use of a detonating load such as, for example, the risks of rupture of the cutting device with emission of effects undesirable pyrotechnics such as shockwave aerial and projection of fragments.
  • the pyrotechnic charge comprises a plurality of strands such as, for example, those are described in US Patent 4,220,087.
  • the tube is metallic.
  • said tube has a good aptitude for plastic deformation.
  • the tube is closed at each of its ends by a stopper to contain the pyrotechnic effects inside said tube.
  • the tube is aluminum.
  • an ignition device of the pyrotechnic charge comprising an igniter, is placed at one end of the tube.
  • the flattened tube is housed in a groove of the structure having a section in the form of , the bottom of the groove having a secondary groove and the tube being held by means of a closing clip.
  • the linear density of the Pyrotechnic charge is less than 4g / m.
  • Cutting devices according to the invention have the advantage of not being dangerous for people, whether in normal operation or erratic, in so far as the effects produced remain low intensity. Moreover, they are reliable because the firing such compositions is perfectly control. Finally, because of the great diversity of Explosive compositions that can be used, cutting devices according to the invention can adapt to a lot of related configurations particular to the thickness of the structure to be cut, material constituting said structure, on the surface to cut.
  • Figure 1 is a side axial sectional view of a cutting device according to the invention, positioned compared to the structure to be cut and not having still worked.
  • FIG. 2 represents the cutting device of Figure 1 after operation.
  • the cutting device 1 is inserted into a groove 2 of the structure 3 to be cut, said groove 2 having a section in the form of and whose bottom has a secondary groove in the form of v so that the thickness of the structure 3 at the level of said secondary groove 4 is minimum.
  • a linear pyrotechnic charge consisting of three strands is housed in the center of a deformable hollow aluminum tube 6, said tube 6 being flattened so as to have an elongated section having two planar sides, parallel to each other, and interconnected by two segments in an arc of a circle, said load 5 being in contact with the two planar sides of the tube 6.
  • the space remaining between the pyrotechnic charge 5 and the inner wall of the tube 6 is filled by an elastomer foam 7 to help maintain said load 5 at the center of said tube 6.
  • the tube 6 occupies the groove 2 without lateral play, that is, the two planar sides of the tube 6 are each in contact with the walls of the groove 2.
  • the groove 2 is formed in a bead of the structure 3 and the tube 6 is held in the groove 2 by means of a closing clip 8 covering said groove 2.
  • the tube 6 in the groove 2 is in contact with both the bottom of said groove 2 and the groove 2. lip 8 of closure.
  • An ignition device comprising a single igniter is placed near the tube 6. Two plugs close the ends of said tube 6.
  • the mode of operation of the cutting device according to the invention is as follows.
  • the firing of the pyrotechnic charge 5 causes the production of gas in the tube 6 which then undergoes a significant internal pressure.
  • the tube 6 reacts by deforming to adopt a circular section.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Air Bags (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
  • Body Structure For Vehicles (AREA)
  • Harvester Elements (AREA)

Abstract

The device has a linear pyrotechnic charge (5) placed in a flattened deformable tube (6), where a space is provided between the charge and the tube. The tube is deformed by the combustion of the charge, where the speed of combustion is lower than 3000 meter/second. The deformation of the tube permits a structure (3) to be ruptured at the minimum thickness level, where the structure has minimum thickness at the level of a groove (4).

Description

Le domaine technique de l'invention est celui de la sécurité automobile impliquant des dispositifs de découpe d'une structure comme, par exemple, un tableau de bord, afin de mettre en action un dispositif de sécurité. Les dispositifs de découpe selon l'invention sont particulièrement adaptés à la mise en oeuvre de coussins de protection dans un véhicule automobile.The technical field of the invention is that of automotive safety involving cutting a structure like, for example, a table on board, in order to put into action a security. Cutting devices according to the invention are particularly suitable for the implementation of protective cushions in a motor vehicle.

Les dispositifs de découpe de structure ont déjà fait l'objet de plusieurs brevets.Structure cutting devices have already is the subject of several patents.

On peut citer le brevet EP 0 273 061 qui décrit un joint de séparation entre deux structures et impliquant une charge explosive linéaire confinée dans un tube aplati. Les deux structures s'emboítent l'une dans l'autre et la mise à feu de la charge explosive provoque une expansion du tube qui déforme alors l'une des deux structures entraínant leur désolidarisation. La charge explosive n'est pas spécifiquement décrite mais la description dévoile quelques indices qui laissent à penser qu'il s'agit d'une charge détonante.We can mention EP 0 273 061 which describes a separation joint between two structures and involving a linear explosive charge confined in a tube flattened. The two structures fit together in one the other and the firing of the explosive charge causes an expansion of the tube which then deforms one of the two structures that lead to their dissociation. Load explosive is not specifically described but the description reveals some clues that leave think it's an explosive charge.

De même, le dispositif de séparation divulgué dans le brevet US 6,170,400 ou dans le brevet US 5,372,071 met en jeu un cordeau détonant dont la mise à feu va provoquer la déformation du tube dans lequel il est logé afin de repousser un piston pour séparer deux sous-ensembles.Similarly, the separation device disclosed in US Patent 6,170,400 or in US Patent 5,372,071 puts in play a detonating cord whose firing goes cause the deformation of the tube in which it is housed to push a piston to separate two subsets.

Enfin on peut mentionner le brevet US 5, 478, 106 qui décrit un système d'ouverture pour le déploiement d'un airbag. Ce système d'ouverture comprend un tube déformé présentant une partie effilée et dans lequel est logée une charge pyrotechnique linéaire. La mise à feu de ladite charge provoque l'expansion du tube dont la partie effilée vient au contact de la structure pour la découper. Finally, mention may be made of US Pat. No. 5,478,106 which describes an opening system for deploying a airbag. This opening system includes a deformed tube having a tapered portion and in which is housed a linear pyrotechnic charge. The firing of said load causes the tube to expand tapered part comes in contact with the structure for the cut.

Les dispositifs de découpe selon l'invention font intervenir des cordeaux déflagrants, logés dans des tubes aplatis et leur mise à feu provoque une expansion de la section desdits tubes pour découper une structure. Les cordeaux déflagrants ont des vitesses de réactions plus lentes que celles des cordeaux détonants et par conséquent, les effets pyrotechniques associés sont moins violents et en particulier, les risques de projection d'éclats et d'émission d'une onde de choc aérienne vers l'extérieur desdits dispositifs deviennent négligeables. Les dispositifs de découpe selon l'invention sont particulièrement adaptés aux véhicules automobiles dans la mesure où ils sont fiables et efficaces, tout en présentant un niveau de sécurité accru en limitant l'intensité de la réaction et donc les possibilités de dommages corporels.The cutting devices according to the invention make intervene in the explosion-proof cords, housed in flattened tubes and their firing causes expansion the section of said tubes for cutting a structure. Explosion cords have reaction speeds slower than those of detonating cords and by therefore, the associated pyrotechnic effects are less violent and in particular, the risks of projection of shrapnel and emission of a shock wave aerial outward of said devices become negligible. Cutting devices according to the invention are particularly suitable for vehicles automobiles to the extent that they are reliable and effective, while providing a level of security increased by limiting the intensity of the reaction and therefore the potential for bodily injury.

L'objet de la présente invention concerne un dispositif de découpe d'une structure dans une automobile comprenant une charge pyrotechnique linéaire placée dans un tube déformable aplati, la combustion de ladite charge entraínant la déformation du tube qui accroít sa section, ladite déformation provoquant la rupture de la structure, caractérisé en ce que la vitesse de combustion de la charge pyrotechnique est inférieure à 3000m/s.The subject of the present invention relates to a cutting device of a structure in a automobile comprising a linear pyrotechnic charge placed in a flattened deformable tube, the combustion of said load causing the deformation of the tube which increases its section, said deformation causing the rupture of the structure, characterized in that the burning rate of the pyrotechnic charge is less than 3000m / s.

Dans cette demande de brevet, les expressions "charge déflagrante" et "charge dont la vitesse de combustion est inférieure à 3000m/s" sont équivalentes.In this patent application, the expressions "explosion charge" and "charge the speed of which combustion is less than 3000m / s "are equivalent.

Cette équivalence est souhaitable car une déflagration bien que définissant une réaction plus longue et moins violente qu'une détonation reste relativement peu déterminée quant à la valeur de certains paramètres qui la caractérisent. This equivalence is desirable because a deflagration although defining a reaction more long and less violent than a detonation remains relatively undefined as to the value of certain parameters that characterize it.

Préférentiellement, la vitesse de combustion de la charge pyrotechnique est comprise entre 1000m/s et 2000m/s.Preferably, the burning speed of the pyrotechnic charge is between 1000m / s and 2000m / s.

Les charges déflagrantes retenues pour les dispositifs de découpe selon l'invention sont suffisamment vives pour provoquer la découpe d'une structure dans un véhicule automobile, sans présenter les désagréments liés à l'utilisation d'une charge détonante comme par exemple, les risques de rupture du dispositif de découpe avec émission d'effets pyrotechniques indésirables tels que onde de choc aérienne et projection d'éclats.Explosive charges retained for cutting devices according to the invention are bright enough to cause cutting of a structure in a motor vehicle, without present the inconvenience associated with the use of a detonating load such as, for example, the risks of rupture of the cutting device with emission of effects undesirable pyrotechnics such as shockwave aerial and projection of fragments.

Avantageusement, la charge pyrotechnique comprend une pluralité de brins comme par exemple, celles qui sont décrites dans le brevet US 4,220,087.Advantageously, the pyrotechnic charge comprises a plurality of strands such as, for example, those are described in US Patent 4,220,087.

De façon préférentielle, le tube est métallique.Preferably, the tube is metallic.

De façon avantageusement, ledit tube présente une bonne aptitude à la déformation plastique.Advantageously, said tube has a good aptitude for plastic deformation.

Préférentiellement, le tube est obturé à chacune de ses extrémités par un bouchon afin de contenir les effets pyrotechniques à l'intérieur dudit tube.Preferably, the tube is closed at each of its ends by a stopper to contain the pyrotechnic effects inside said tube.

En effet, les exigences en matière de sécurité automobile étant particulièrement élevées, il est recommandé de minimiser les risques de propagation d'effets intempestifs à l'extérieur du dispositif de découpe.Indeed, the security requirements automobile being particularly high, it is recommended to minimize the risk of spread unintended effects outside the device of cutting.

De façon préférentielle, le tube est en aluminium.Preferably, the tube is aluminum.

De façon avantageuse, il existe un espace entre la charge pyrotechnique et le tube, ledit espace étant comblé par une mousse en élastomère destinée, d'une part, à maintenir ladite charge au centre dudit tube et, d'autre part, à augmenter la mise en pression dudit tube. De cette manière, cela permet avec une faible charge pyrotechnique et donc une faible quantité de gaz produit, de maximiser la contrainte dans des tubes même résistants, pour qu'ils retrouvent leur forme cylindrique originale.Advantageously, there is a gap between the pyrotechnic charge and the tube, said space being filled with an elastomer foam intended for on the other hand, to maintain the said load in the center of the said tube and, on the other hand, to increase the pressurization of said tube. In this way, this allows with a weak pyrotechnic charge and therefore a small amount of gas product, to maximize the stress in even tubes resistant, so that they regain their shape original cylindrical.

Préférentiellement, un dispositif d'allumage de la charge pyrotechnique comprenant un allumeur, est placé à l'une des extrémités du tube.Preferably, an ignition device of the pyrotechnic charge comprising an igniter, is placed at one end of the tube.

Avantageusement, le tube aplati est logé dans une rainure de la structure ayant une section en forme de

Figure 00040001
, le fond de la rainure comportant une rainure secondaire et le tube étant maintenu au moyen d'un clip de fermeture.Advantageously, the flattened tube is housed in a groove of the structure having a section in the form of
Figure 00040001
, the bottom of the groove having a secondary groove and the tube being held by means of a closing clip.

De façon préférentielle, la densité linéique de la charge pyrotechnique est inférieure à 4g/m.Preferably, the linear density of the Pyrotechnic charge is less than 4g / m.

Les dispositifs de découpe selon l'invention présentent l'avantage de ne pas être dangereux pour les personnes, que ce soit en fonctionnement normal ou erratique, dans la mesure où les effets produits restent de faible intensité. De plus, ils sont fiables car la mise à feu de telles compositions est parfaitement maítrisée. Enfin de par la grande diversité des compositions déflagrantes pouvant être utilisées, les dispositifs de découpe selon l'invention peuvent s'adapter à un grand nombre de configurations liées notamment à l'épaisseur de la structure à découper, au matériau constitutif de ladite structure, à la surface à découper.Cutting devices according to the invention have the advantage of not being dangerous for people, whether in normal operation or erratic, in so far as the effects produced remain low intensity. Moreover, they are reliable because the firing such compositions is perfectly control. Finally, because of the great diversity of Explosive compositions that can be used, cutting devices according to the invention can adapt to a lot of related configurations particular to the thickness of the structure to be cut, material constituting said structure, on the surface to cut.

On donne, ci-après, la description détaillée d'un mode de réalisation préféré de l'invention en se référant aux figures 1 et 2.The following is a detailed description of a preferred embodiment of the invention in referring to Figures 1 and 2.

La figure 1 est une vue en coupe axiale latérale d'un dispositif de découpe selon l'invention, positionné par rapport à la structure à découper et n'ayant pas encore fonctionné.Figure 1 is a side axial sectional view of a cutting device according to the invention, positioned compared to the structure to be cut and not having still worked.

La figure 2 représente le dispositif de découpe de la figure 1 après fonctionnement. FIG. 2 represents the cutting device of Figure 1 after operation.

En se référant à la figure 1 le dispositif de découpe 1 selon l'invention est inséré dans une rainure 2 de la structure 3 à découper, ladite rainure 2 ayant une section en forme de et dont le fond comporte une rainure secondaire en forme de v de manière à ce que l'épaisseur de la structure 3 au niveau de ladite rainure secondaire 4 soit minimum. Une charge pyrotechnique 5 linéaire constituée de trois brins est logée au centre d'un tube creux 6 déformable en aluminium, ledit tube 6 étant aplati de façon à présenter une section allongée possédant deux côtés plans, parallèles entre eux, et reliés entre eux par deux segments en arc de cercle, ladite charge 5 se retrouvant au contact des deux côtés plans du tube 6. L'espace subsistant entre la charge pyrotechnique 5 et la paroi interne du tube 6 est comblé par une mousse en élastomère 7 pour contribuer à maintenir ladite charge 5 au centre dudit tube 6. Le tube 6 occupe la rainure 2 sans jeu latéral, autrement dit, les deux côtés plans du tube 6 sont chacun au contact des parois de la rainure 2. La rainure 2 est pratiquée dans un bourrelet de la structure 3 et le tube 6 est maintenu dans la rainure 2 au moyen d'un clip 8 de fermeture recouvrant ladite rainure 2. Le tube 6 dans la rainure 2 se retrouve au contact à la fois du fond de ladite rainure 2 et du clip 8 de fermeture. Un dispositif d'allumage comprenant un simple allumeur est placé à proximité du tube 6. Deux bouchons obturent les extrémités dudit tube 6.Referring to Figure 1 the cutting device 1 according to the invention is inserted into a groove 2 of the structure 3 to be cut, said groove 2 having a section in the form of and whose bottom has a secondary groove in the form of v so that the thickness of the structure 3 at the level of said secondary groove 4 is minimum. A linear pyrotechnic charge consisting of three strands is housed in the center of a deformable hollow aluminum tube 6, said tube 6 being flattened so as to have an elongated section having two planar sides, parallel to each other, and interconnected by two segments in an arc of a circle, said load 5 being in contact with the two planar sides of the tube 6. The space remaining between the pyrotechnic charge 5 and the inner wall of the tube 6 is filled by an elastomer foam 7 to help maintain said load 5 at the center of said tube 6. The tube 6 occupies the groove 2 without lateral play, that is, the two planar sides of the tube 6 are each in contact with the walls of the groove 2. The groove 2 is formed in a bead of the structure 3 and the tube 6 is held in the groove 2 by means of a closing clip 8 covering said groove 2. The tube 6 in the groove 2 is in contact with both the bottom of said groove 2 and the groove 2. lip 8 of closure. An ignition device comprising a single igniter is placed near the tube 6. Two plugs close the ends of said tube 6.

En se référant aux figures 1 et 2, le mode de fonctionnement du dispositif de découpe selon l'invention est le suivant.Referring to FIGS. 1 and 2, the mode of operation of the cutting device according to the invention is as follows.

La mise à feu de la charge pyrotechnique 5 entraíne la production de gaz dans le tube 6 qui subit alors une pression interne importante. Le tube 6 réagit en se déformant pour adopter une section circulaire. The firing of the pyrotechnic charge 5 causes the production of gas in the tube 6 which then undergoes a significant internal pressure. The tube 6 reacts by deforming to adopt a circular section.

Cette expansion provoque la rupture de la structure 3 au niveau de son épaisseur la plus faible créée par la rainure secondaire 4, ainsi que celle du clip 8 de fermeture. La structure se retrouve ainsi découpée et tous les effets pyrotechniques restent contenus dans le tube 6.This expansion causes the breakage of the structure 3 at its lowest thickness created by the secondary groove 4, as well as clip 8 of closing. The structure is thus cut up and all pyrotechnic effects remain contained in the tube 6.

Claims (9)

Dispositif de découpe (1) d'une structure dans une automobile comprenant une charge pyrotechnique linéaire (5) placée dans un tube déformable aplati (6), la combustion de ladite charge (5) entraínant la déformation du tube (6) qui accroít sa section, ladite déformation provoquant la rupture de la structure (3), caractérisé en ce que la vitesse de combustion de la charge pyrotechnique (5) est inférieure à 3000m/s.Device for cutting (1) a structure in an automobile comprising a linear pyrotechnic charge (5) placed in a flattened deformable tube (6), the combustion of said load (5) causing deformation of the tube (6) which increases its section, said deformation causing rupture of the structure (3), characterized in that the combustion rate of the pyrotechnic charge (5) is less than 3000m / s. Dispositif de découpe selon la revendication 1 caractérisé en ce que la charge pyrotechnique (5) comprend une pluralité de brins.Cutting device according to claim 1 characterized in that the pyrotechnic charge (5) comprises a plurality of strands. Dispositif de découpe selon l'une quelconque dès revendication 1 ou 2, caractérisé en ce que le tube (6) est métallique.Cutting device according to any one of claim 1 or 2, characterized in that the tube (6) is metallic. Dispositif selon la revendication 1 caractérisé en ce que le tube (6) est obturé à chacune de ses extrémités par un bouchon afin de contenir les effets pyrotechniques à l'intérieur dudit tube (6).Device according to claim 1 characterized in that the tube (6) is closed at each of its ends by a plug to contain the pyrotechnic effects inside said tube (6). Dispositif selon la revendication 3 caractérisé en ce que le tube (6) est en aluminium.Device according to claim 3 characterized in that the tube (6) is aluminum. Dispositif selon la revendication 1 caractérisé en ce que il existe un espace entre la charge pyrotechnique (5) et le tube (6), ledit espace étant comblé par une mousse en élastomère (7).Device according to claim 1 characterized in that there is a gap between the pyrotechnic charge (5) and the tube (6), said space being filled by an elastomer foam (7). Dispositif selon la revendication 1 caractérisé en ce qu'un dispositif d'allumage de la charge pyrotechnique (5) comprenant un allumeur, est placé à l'une des extrémités du tube (6). Device according to Claim 1, characterized in that a device for igniting the pyrotechnic charge (5) comprising an igniter is placed at one end of the tube (6). Dispositif selon la revendication 1 caractérisé en ce que le tube aplati (6) est logé dans une rainure (2) de la structure (3) ayant une section en forme de
Figure 00080001
, le fond de la rainure comportant une rainure secondaire (4) et le tube (6) étant maintenu au moyen d'un clip (8) de fermeture.Device according to claim 1 characterized in that the flattened tube (6) is housed in a groove (2) of the structure (3) having a section in the form of
Figure 00080001
, the bottom of the groove having a secondary groove (4) and the tube (6) being held by means of a clip (8) closure. Dispositif selon la revendication 1 caractérisé en ce que la densité linéique de la charge pyrotechnique (5) est inférieure à 4g/m.Device according to claim 1 characterized in that the linear density of the pyrotechnic charge (5) is less than 4g / m.
EP05290641A 2004-04-02 2005-03-24 Device for the cutting of an automotive structure Not-in-force EP1582321B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0403469A FR2868351B1 (en) 2004-04-02 2004-04-02 DEVICE FOR CUTTING A STRUCTURE IN A MOTOR VEHICLE
FR0403469 2004-04-02

Publications (2)

Publication Number Publication Date
EP1582321A1 true EP1582321A1 (en) 2005-10-05
EP1582321B1 EP1582321B1 (en) 2007-03-07

Family

ID=34878487

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05290641A Not-in-force EP1582321B1 (en) 2004-04-02 2005-03-24 Device for the cutting of an automotive structure

Country Status (7)

Country Link
US (1) US20050217466A1 (en)
EP (1) EP1582321B1 (en)
JP (1) JP2005288686A (en)
AT (1) ATE355945T1 (en)
DE (1) DE602005000645T2 (en)
ES (1) ES2281886T3 (en)
FR (1) FR2868351B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3130363A1 (en) * 2021-12-15 2023-06-16 Pyroalliance Set separable by pyrotechnic cutting

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6097523B2 (en) * 2012-10-26 2017-03-15 鹿島建設株式会社 Charged drug and method of setting charged charge
CN108195236B (en) * 2018-01-12 2019-03-22 北京航空航天大学 A kind of separate type self-destruction security control device and rocket

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273061A1 (en) * 1985-06-24 1988-07-06 McDONNELL DOUGLAS CORPORATION Separation system
US5372071A (en) * 1993-07-13 1994-12-13 Tracor, Inc. Thrusting separation system
US6170400B1 (en) * 1998-06-02 2001-01-09 AEROSPATIALE Soci{acute over (e)}t{acute over (e)}Nationale Industrielle Device for the cutting of nonmetallic parts by means of a pyrotechnic expansion tube
FR2806342A1 (en) * 2000-03-15 2001-09-21 Lacroix Soc E Device, for controlled shockless rupture of structures, comprises fluid generator connected to energizing system, and flat tube connected to generator between two structure components

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3076408A (en) * 1958-06-11 1963-02-05 Borg Warner Controlled fracturing of solids by explosives
US3698281A (en) * 1970-02-27 1972-10-17 Lockheed Aircraft Corp Explosive system
GB1301607A (en) * 1970-06-25 1973-01-04
US4220087A (en) * 1978-11-20 1980-09-02 Explosive Technology, Inc. Linear ignition fuse
US4301707A (en) * 1979-10-29 1981-11-24 Mcdonnell Douglas Corporation Embedded explosive severance of non-metallic materials
US5392684A (en) * 1993-06-25 1995-02-28 The Ensign-Bickford Company Explosive thrust-producing coupling
US5478106A (en) * 1994-07-22 1995-12-26 Tip Engineering Group, Inc. Method and arrangement for forming an air bag deployment opening
EP0941180B2 (en) * 1997-09-08 2011-02-23 Zodiac Automotive US, Inc. Distributed charge inflator system
US6454038B2 (en) * 1998-04-09 2002-09-24 Certime Amsterdam B.V. Collapsible panel and method for controlled collapsing thereof
US6336611B1 (en) * 1998-04-09 2002-01-08 Certime Amsterdam B.V. Collapsible panel and method for controlled collapsing thereof
US6176517B1 (en) * 1998-10-23 2001-01-23 Autoliv Aspinc. Gas generating apparatus
FR2799708B1 (en) * 1999-09-24 2001-12-07 Livbag Snc INFLATABLE METAL STRUCTURE WITH INTEGRATED PYROTECHNIC LOADING
US6886469B2 (en) * 2002-05-17 2005-05-03 Zodiac Automotive Us Inc. Distributed charge inflator system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0273061A1 (en) * 1985-06-24 1988-07-06 McDONNELL DOUGLAS CORPORATION Separation system
US5372071A (en) * 1993-07-13 1994-12-13 Tracor, Inc. Thrusting separation system
US6170400B1 (en) * 1998-06-02 2001-01-09 AEROSPATIALE Soci{acute over (e)}t{acute over (e)}Nationale Industrielle Device for the cutting of nonmetallic parts by means of a pyrotechnic expansion tube
FR2806342A1 (en) * 2000-03-15 2001-09-21 Lacroix Soc E Device, for controlled shockless rupture of structures, comprises fluid generator connected to energizing system, and flat tube connected to generator between two structure components

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3130363A1 (en) * 2021-12-15 2023-06-16 Pyroalliance Set separable by pyrotechnic cutting

Also Published As

Publication number Publication date
JP2005288686A (en) 2005-10-20
FR2868351A1 (en) 2005-10-07
ATE355945T1 (en) 2007-03-15
US20050217466A1 (en) 2005-10-06
EP1582321B1 (en) 2007-03-07
DE602005000645T2 (en) 2007-11-08
FR2868351B1 (en) 2006-06-23
DE602005000645D1 (en) 2007-04-19
ES2281886T3 (en) 2007-10-01

Similar Documents

Publication Publication Date Title
EP2044386B1 (en) Pyrotechnic device for destroying ammunitions
EP1160138B1 (en) Hybrid gas generator with a perforating stem
EP0757026B1 (en) Pyrotechnic hot gas generator for airbag used for side impact protection
CA2793337A1 (en) Electric circuit breaker with pyrotechnic actuation
EP2297545B1 (en) Non-lethal munition
EP0870651B1 (en) Pyrotechnic gas generator with adaptive flow and volume for air bag
FR2567258A1 (en) LAUNCH DEVICE WITHOUT BACK
EP3114424B1 (en) Decoy cartridge for aircraft
EP1181498B1 (en) Igniter tube for artillery ammunition
EP1582321B1 (en) Device for the cutting of an automotive structure
EP1304267B1 (en) Hybrid gas generator for airbag
EP0901946A1 (en) Adaptable pyrotechnic gasgenerator for a safety bag with neutralisation device
EP3715776B1 (en) Cartridge comprising fuse cords
EP1319920A1 (en) Pyrotechnical separator and separation system equipped with said separator
FR2738309A1 (en) SECTIONING SCREWS
FR2638738A1 (en) UNBREAKABLE DETONATOR CORD
WO2005098346A1 (en) Radiation-emitting device, which is intended in particular for infrared radiation
EP0404644B1 (en) Electropyrotechnic device for triggering the functioning of a gas generator
EP0211703B1 (en) Plug for a solid propellant with two combustion chambers
FR2836461A1 (en) Pyrotechnic fluid disperser, e.g. for spoiling stolen banknotes, has chamber with outer apertures and graduated seals
EP0045226B1 (en) Igniter plug started by rubbing or hot gases
FR3044640B1 (en) PYROTECHNIC RUPTURE DEVICE
FR2664688A1 (en) Fast mine clearance device
EP2922808B1 (en) Pyrotechnic gas generator component
FR2937295A1 (en) Pyrotechnic gas generator for inflating air bag of motor vehicle, has insert made of thermally conducting material with sufficient mechanical strength, so that insert is not plastically deformed before self-initiation of generator

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

17P Request for examination filed

Effective date: 20051026

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: SNPE MATERIAUX ENERGETIQUES

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

Ref country code: IE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REF Corresponds to:

Ref document number: 602005000645

Country of ref document: DE

Date of ref document: 20070419

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20070329

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070707

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070807

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2281886

Country of ref document: ES

Kind code of ref document: T3

REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

BERE Be: lapsed

Owner name: SNPE MATERIAUX ENERGETIQUES

Effective date: 20070331

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070331

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070331

26N No opposition filed

Effective date: 20071210

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070608

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070607

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20070324

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070307

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070908

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090331

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090331

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Owner name: HERAKLES, FR

Effective date: 20130213

Ref country code: FR

Ref legal event code: CA

Effective date: 20130213

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602005000645

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE, DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 602005000645

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE, DE

Effective date: 20130513

Ref country code: DE

Ref legal event code: R081

Ref document number: 602005000645

Country of ref document: DE

Owner name: HERAKLES, FR

Free format text: FORMER OWNER: SME, PARIS, FR

Effective date: 20130528

Ref country code: DE

Ref legal event code: R081

Ref document number: 602005000645

Country of ref document: DE

Owner name: HERAKLES, FR

Free format text: FORMER OWNER: SNPE MATERIAUX ENERGETIQUES, PARIS, FR

Effective date: 20130513

Ref country code: DE

Ref legal event code: R082

Ref document number: 602005000645

Country of ref document: DE

Representative=s name: CBDL PATENTANWAELTE, DE

Effective date: 20130528

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Owner name: HERAKLES

Effective date: 20130708

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20160304

Year of fee payment: 12

Ref country code: DE

Payment date: 20160218

Year of fee payment: 12

Ref country code: IT

Payment date: 20160224

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20160219

Year of fee payment: 12

Ref country code: GB

Payment date: 20160223

Year of fee payment: 12

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 13

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602005000645

Country of ref document: DE

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20170324

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170325

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171003

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170324

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170324

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 14

REG Reference to a national code

Ref country code: ES

Ref legal event code: PC2A

Effective date: 20180508

Ref country code: ES

Ref legal event code: PC2A

Owner name: ARIANEGROUP SAS

Effective date: 20180508

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20180322

Year of fee payment: 14

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20180706

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Owner name: ARIANEGROUP SAS, FR

Effective date: 20180621

Ref country code: FR

Ref legal event code: TP

Owner name: ARIANEGROUP SAS, FR

Effective date: 20180621

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20170325

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20190331