EP0624773A1 - Firework having means to separate several succesively ignited charges from casings - Google Patents

Firework having means to separate several succesively ignited charges from casings Download PDF

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Publication number
EP0624773A1
EP0624773A1 EP94401079A EP94401079A EP0624773A1 EP 0624773 A1 EP0624773 A1 EP 0624773A1 EP 94401079 A EP94401079 A EP 94401079A EP 94401079 A EP94401079 A EP 94401079A EP 0624773 A1 EP0624773 A1 EP 0624773A1
Authority
EP
European Patent Office
Prior art keywords
pyrotechnic
base
cover
cells
face
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
EP94401079A
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German (de)
French (fr)
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EP0624773B1 (en
Inventor
Gilles Adolphe
Jean-Pierre Costes
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.)
Etienne LaCroix Tous Artifices SA
Original Assignee
Etienne LaCroix Tous Artifices SA
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Publication of EP0624773A1 publication Critical patent/EP0624773A1/en
Application granted granted Critical
Publication of EP0624773B1 publication Critical patent/EP0624773B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • the present invention relates to a device for clustering fireworks bombs, each of which has a wick, comprising a base in the form of a bar suitable, on the one hand, for being fixed along a battery of mortars, each of which is intended to receive a bomb. respective fireworks and on the other hand to receive in solidarity a free end of each wick, pyrotechnic delays connecting the free ends of wick two by two and a free end of an igniter cord for firing bombs by the 'delays and wicks.
  • connection between the delays, the wicks of the bombs and the igniter cord is carried out using an assembly comprising sheaths of kraft paper maintained around these various components by a ligature, the whole being fixed on the bar, made of wood, also by ligature.
  • the present invention provides a grading device of the type indicated in the preamble, characterized in that the base comprises a plurality of transverse cells for receiving a free end respective wick, distributed longitudinally at the rate of one cell per free end of the wick and opening into the same longitudinal face of the base, longitudinal channels for receiving a respective pyrotechnic delay, connecting the cells two by two and opening into said face, and means for fixing means forming a cover on said face, in that there are also provided means forming a cover, comprising fixing means capable of cooperating with said means for fixing the base to ensure fixing of the means forming a cover on said face in a position in which they define with the cells and the channels a closed assembly, however, freeing a respective passage for the wicks and the igniter, and in that the cells and the channels and / or the means forming a cover are shaped so that, when the cover is fixed on said face, it traps in an integral manner a free end
  • the base and the cover means are for example made by molding in synthetic material.
  • the cells are identical in order to ensure an identity of the conditions of fire transmission between the different pyrotechnic delays and the different free ends of the wick, and the channels for receiving the pyrotechnic delays are identical, to facilitate the interchangeability of the pyrotechnic delays .
  • the cover means comprise a cover per cell, which facilitates progressive mounting of the pyrotechnic delays and the free ends of the wick on the device
  • the covers are preferably mutually identical, which offers both the advantage to make them interchangeable and to promote the interchangeability of pyrotechnic delays, and the advantage of allowing standardized manufacturing, particularly economical especially when it is carried out by molding.
  • the means for fixing the means forming a cover to the base are preferably reversible, that is to say releasable without destruction, which makes it possible to reuse the means forming a cover after having dismantled them.
  • the fixing means comprise latching means, easy to produce in reversible form, in particular when the base and the cover means are made of a synthetic material, which also makes it possible to produce these fixing means directly during molding, in a particularly simple and economical way.
  • a rigorous positioning of the pyrotechnic delays in the channels provided for their reception promotes the proper functioning of the assembly and the present invention also proposes a pyrotechnic delay intended to be used in conjunction with the clustering device according to the invention, which pyrotechnic delay is characterized in that it comprises a longitudinal tubular body, for example metallic, internally lined with a delay pyrotechnic composition, open at its transverse ends and externally having an immobilization conformation by the base and the cover means.
  • the reception channels and / or the means forming a cover comprise mutually opposite transverse shoulders, of longitudinal abutment for the pyrotechnic delays and the tubular bodies of the latter themselves, to cooperate with these shoulders mutually opposite transverse shoulders, also mutually opposite transverse shoulders.
  • the receiving channels and / or the cover means, on the one hand, and the tubular bodies, on the other hand, are dimensioned longitudinally, between the respective shoulders, so that a mutual stop is established in both directions. longitudinal, which precisely fixes the position of the pyrotechnic delays on the base, in the longitudinal direction.
  • the cells and / or the cover means comprise means forming a baffle for retaining the free end of respective wick.
  • the transmission of fire between the pyrotechnic delays and the free ends of the wicks is effected by means of a pyrotechnic composition in which the free ends of the wicks are drowned inside the cells.
  • direct transmission is preferred, requiring no additional operations for stuffing the cells with a pyrotechnic composition, and it is preferably provided for this purpose that the channels for receiving the pyrotechnic delays are placed according to the same longitudinal alignment, and that at each end of the tubular body of a pyrotechnic delay, the pyrotechnic delay composition has a cone of restitution.
  • said face and / or the means forming a cover preferably have transverse baffle reliefs between the cells, outside the channels for receiving pyrotechnic delays.
  • Such reliefs can advantageously be produced by molding, during the manufacture of the base and / or cover means by this process.
  • a device for clustering and pyrotechnic delays makes it possible to make available to fireworks and the public fireworks firing devices requiring only a minimum of assembly operations in the field, so that the present invention extends to a fireworks firing device, comprising a battery of mortars mutually juxtaposed longitudinally, characterized in that it comprises a grappling device according to the invention, the base of which is fixed along the mortar battery.
  • This fireworks firing device can also include fireworks bombs, each of which is housed in a respective mortar and has a wick, one free end of which is engaged in a respective cell, an igniter cord, one free end of which is engaged. in a cell, and pyrotechnic delays according to the invention, each of which is housed in a respective receiving channel, the cover means being fixed to the base by said fixing means and retaining on the base the free ends of the wicks and ignition cord and pyrotechnic delays.
  • the means for fixing the means forming a cover to the base make the fixing irremovable without destruction, in order to avoid that disassembly can be followed by reassembly under defective conditions, possibly dangerous, although a device according to the invention, by the simplicity of assembly which it allows, also makes it possible to avoid defective assemblies.
  • FIGS. 1 and 2 where the base or bar of the gripping device according to the invention has been designated by 1, by 2 each cell cover, visible in more detail in FIGS. 4 and 5, and by 3 each pyrotechnic delay, visible in more detail in FIG. 3.
  • a battery 4 of mortars has also been illustrated, comprising a juxtaposition of mutually identical mortar tubes 5, substantially vertical, in an alignment 6 which will subsequently constitute a longitudinal reference, these tubes 5 being at this effect mounted in a frame 7 for example made of wood, and each containing a fireworks bomb 8 provided with a wick 9 having a free end 10 immobilized between the base 1 and a respective cover 2 when the battery 4 is ready to fire , as will appear later.
  • the base 1 is fixed to the frame 7, for example by means of nails 11, in the immediate vicinity of the mouths 12 of the tubes 5, and runs along the alignment of the latter, naturally without interfering with their mouths 12 so as not to constitute an obstacle to the exit of the bombs 8.
  • the gripping device according to the invention will be described with reference to the position which it thus occupies on the frame 7 of a battery 4 of mortars, in the example illustrated in FIG. 2, it being understood that it does not result in any limitation in particular as to the orientation that a gripping device according to the invention can occupy in service.
  • the base 1 has a generally flat shape in the vertical direction 13 and elongated in the longitudinal horizontal direction 14 defined by the alignment 6, so as to present an area respective 15 next to each mouth 12.
  • the base 1 In order to receive the nails 11, the base 1 is pierced right through, between its faces 16 and 17, with holes 19 located respectively between two neighboring zones 15. In the example illustrated where there are six zones 15, there are thus provided five holes 19 for nailing the base 1 on the frame 7 of the mortar battery 4, it being understood that a different number, likewise that other methods of fixing the base 1 to the frame 7 could be provided without departing from the scope of the present invention.
  • the upper face 16 of the base 1 is hollowed out of a respective cell 20 elongated in a horizontal transverse direction and having, for example, the shape of a rectangular parallelepiped.
  • the presence of each cell 20 results in the presence, under the lower face 17, of a projection 21 which also has, in this example, the shape of a rectangular parallelepiped delimited downwards by a flat lower face 22, parallel on face 17.
  • Faces 22 of different projections 21 corresponding to the different cells 20 are coplanar with each other as with a longitudinal lower edge 23 of a rib 24 for stiffening the base 1, which rib 24 is also projecting under the underside 17 of that -ci and extends over the entire longitudinal dimension of the base 1, except at the level of the holes 19, which it crosses.
  • the lower faces 22 of the projections 21 and the lower edge 23 of the rib 24 can thus be used for stable support of the base 1 on any flat support, and for example on a longitudinal, horizontal edge 25 of the frame 7 as shown in FIG. illustrated in FIG. 2, the nails passing through the base 1 right through being nailed into this edge 25.
  • Each cell 20 is intended to receive the free end 10 of a respective wick 9 and, to help immobilize this free end 10 relative to the base 1 under conditions which will be detailed below, advantageously has means forming a baffle , in the example illustrated in the form of a longitudinal wall 26 flat like the rib 24, of which it constitutes an extension, without discontinuity, inside each cell 20.
  • Each wall 26 has an upper edge 30 level with the upper face 16 of the base 1 and subdivides the corresponding cell 20 into two compartments 27, 28 each of which has the shape of a rectangular parallelepiped and which are mutually juxtaposed in a horizontal transverse direction.
  • the two compartments 27 and 28 have different dimensions, the larger compartment 28 being intended to receive the free end 10 of the corresponding wick 9 while the smaller compartment 27 is intended to receive a zone 29 of the drill bit 9 directly adjacent to this free end 10.
  • This compartment 27 directly adjoins the edge 18 of the base 1, by an upper edge 31 placed flush with the wall 16, and the base 1 is mounted on the frame 7 of the battery 4 of mortars so that each edge 31 adjoins the mouth 12 of a respective tube 5, the various cells 20 being distributed longitudinally on the base 1 according to a not referenced pitch identical to the not referenced distribution pitch longitudinal of the tubes 5.
  • the cells 20 are mutually identical and each of them is symmetrical with respect to a respective transverse plane 32 which constitutes a plane of symmetry for the whole of the corresponding zone 15 respectively, except for the longitudinally extreme zones 15, slightly different as it will appear later.
  • This plane 32 also constitutes a plane of symmetry for the lid 2 respectively corresponding when it is fixed on the base 1, and this whatever the lid 2 and the zone 15 considered.
  • the compartments 28 of the various cells 20 are connected two by two by channels 33, mutually aligned along a longitudinal axis 37 and hollowed out in the upper face 16, which gives rise to the formation of a longitudinal bulge not referenced, stripped of particular function, on the lower face 17.
  • Each channel 33 opens freely into the associated compartments 28 and, in addition, like the cells 20, in the upper face 16 of the base 1.
  • Each channel 33 comprises in the example illustrated three mutually juxtaposed sections longitudinally, at the rate of two longitudinally extreme sections 34 and a longitudinally central section 35.
  • the end sections 34, through which each channel 33 opens into the two corresponding compartments 28, have set back with respect to the face 16 a bottom face 36 which is in the example illustrated semi-cylindrical of revolution around the axis 37, which is located in the geometric plane of the face 16.
  • the radius, not referenced, of the bottom faces 36 is less than the depth of the cells 20 perpendicular to the upper face 16 of the base, so that the bulge, not referenced, which corresponds to them in the face 15, remains set back with respect to the lower faces 22 of the projections 21 and to the edge 23 of the rib 24.
  • the two sections 34 which open into the same compartment 28 are mutually symmetrical with respect to the plane 32 corresponding in as regards the zones 15 other than the extreme zones 15, a single channel 33 opening into the compartments 28 of the cells 20 corresponding to the extreme zones 15.
  • each central zone 35 is defined by a hole passing through the base 1 right through, that is to say from its upper face 16 to its lower face 17.
  • Each of these holes presents when it is seen in plan the shape of a rectangle, defined by two longitudinal edge zones 38, mutually symmetrical with respect to the axis 37 and spaced perpendicularly to the latter by a distance greater than the diameter of the bottom faces 36 of the extreme sections 34, and by two transverse edge zones 40 which, due to this comparative dimensioning of the mutual spacing of the edge zones 38 and 39, on the one hand, and the diameter of the faces 36, on the other hand, define transverse shoulders, facing one another.
  • the different channels 33 are identical, in particular as regards the dimensioning of their different sections 34, 35.
  • the extreme zones 15 differ from the other zones 15 not only by their lack of symmetry with respect to the respective plane 32 and by the fact that a single channel 33 opens into the compartment 28 of the corresponding cell 20, but also by the fact that in the extension of this single channel 33 along the axis 37, on the other side of the compartment 28, the base 1 has projecting on its upper face 16 a respective protuberance 42 to which corresponds a hollow 43, without particular function , from the underside 17.
  • Each protuberance 42 has, on a longitudinal dimension corresponding to that of an extreme section 34 of channel 33, from the corresponding compartment 28, an upper semi-cylindrical face 43 of revolution around the axis 37 with a diameter identical to that of the faces bottom 36 of the zones 34 of the channels 33.
  • this face 43 is connected to a transverse shoulder 44 turned towards this compartment 28; in the direction of a distance from the axis 37, this shoulder connects itself to a face 45 also semi-cylindrical of revolution around the axis 37 but with a diameter greater than that of the face 43, which face 45 is also connected to the edge 18 of the base 1.
  • Each of the protrusions 42 thus defined has towards the cell 20 respectively corresponding a flat transverse face 46 continues, coplanarly extending an unreferenced transverse face delimiting the compartment 28 in question.
  • Each of the channels 33 is intended to receive a respective pyrotechnic delay 3 having a shape suitable for being immobilized there by fixing the cover 2 to the base 1.
  • each pyrotechnic delay 3 has a tubular body 47 having a general shape of revolution around an axis which merges with the axis 37, so that one has kept the reference numeral 37 to designate this axis in FIG. 3.
  • the bodies 47 of the different delays 3 are mutually identical, at least externally, just as the different channels 33 intended to receive them are mutually identical.
  • each body 47 is delimited in the direction of a distance from the axis 37 by three sections of external peripheral face at the rate of two longitudinally extreme sections 48, cylindrical of revolution around the axis 37 with a diameter substantially identical to that of the faces 36 of the sections 34 of the channels 33, and of a longitudinally central section 49 also cylindrical of revolution around the axis 37 with a diameter corresponding to the mutual transverse spacing of the zones longitudinal edge 38 of a section 35 of channel 33, so that the section 49 defines by its connection with the sections 48 two annular shoulders 50 of revolution around the axis 37, planes, perpendicular thereto and turned in mutually opposite directions.
  • each pyrotechnic delay 3 can fit together precisely, without the possibility of longitudinal or transverse displacement other than its insertion displacement shown diagrammatically by vertical arrows in FIG. 1, in a corresponding channel 33. So the section 49 is inserted into section 35 coming to bear transversely on the edge areas 38, the shoulders 50 come to bear longitudinally on the shoulders defined by the edge areas 40, and the sections 48 are applied precisely against bottom faces 36 of the end sections 34 of the channel 33 considered.
  • each body 37 could have a constant outside diameter, corresponding to that of the above-mentioned sections 48, and the shoulders 50 for fitting into the respective channel 33 be constituted by at at least one piece integrally attached to the body 37 thus shaped, for example in the form of a longitudinal tubular sleeve or two transverse washers force-fitted, coaxially on this body.
  • the sections 48 are connected to a respective end face 52 of the body 47, the two faces 52 being annular, planar, of revolution about the axis 37 and turned in opposite directions.
  • the longitudinal distance separating the end faces 52 is substantially equal to the longitudinal distance mutually separating two neighboring cells 20 so that at the level of each of the compartments 28 associated with the same channel 33, the faces 52 of the delay 3 corresponding to this channel 33 are exposed.
  • Each face 52 of the body 47 defines an open end 53 thereof, thus opening directly into a compartment 28 of the cell 20.
  • This open end is defined by the connection of the respective face 52 with an inner peripheral face 54 of the body 47 , which is cylindrical of revolution around the axis 37 with a uniform diameter smaller than that of the sections 48 of the outer peripheral face.
  • the body 47 retains a delay pyrotechnic composition 55, suitably calibrated as a function of the delay that it is desired to establish between the firing of the bombs 8 placed in the tubes 5 associated with the two cells 20 which the mutually connected channel 33 housing the delay 3.
  • the composition 55 made solid by any suitable means, for example by compression, has at each of the ends 53 a cone 56 for restoring fire, of revolution around the axis 37 , so that the pyrotechnic delays 3 can ignite the free ends 10 of the wicks 9 as well as, if necessary, another pyrotechnic delay opening into the same compartment 28, without physical contact between these different components.
  • each cover 2 is suitable for being fixed, preferably removably, in a determined position on the base 6, as illustrated in particular in FIG. 2, and this is with reference to this position that covers 2 will now be described.
  • Each of these covers 2 has a base plate 59 in particular delimited by two plane faces, mutually parallel, on the basis of an upper face 60 devoid of function and of a lower face 61 intended to be applied flat on the upper face 16 of the base 1 around a respective cell 20 and, depending on whether it is a cell 20 of an extreme zone 15 or a cell 20 of an intermediate zone 15, around the extreme section 34 of the single channel 33 opening into this cell 20 and of the corresponding protuberance 42 or around the two end sections 34 of channel 33 opening into this cell 20.
  • the two faces 60 and 61 have a rectangular plane, defined by their connection with two transverse edge zones 62 mutually symmetrical with respect to the plane 32, and by two longitudinal edge zones 64, 65, respectively symmetrical with respect to this plane 32.
  • the two transverse edge zones 62 are mutually spaced longitudinally by a distance which corresponds substantially to the longitudinal distance mutually separating the central sections 35 from two consecutive channels 33, that is to say the sum of the respective longitudinal dimensions of two sections ends 34 and of a compartment 28, or again the sum of the longitudinal dimension of an end section 34, that of the upper face 43 of a protuberance 42 and that of a compartment 28 of cell 20.
  • each cover 2 applied flat by its lower face 61 on the upper face 16 of the base 1 thus makes it possible to complete the longitudinal stop which constitute for the shoulders 50 of the body 47 a pyrotechnic delay 3 the edge zones 40, also forming a shoulder, of a central section 35 of channel 33.
  • each cover 2 To allow, for this purpose, to accommodate in each cover 2 either end sections 48 of the outer peripheral face of two pyrotechnic delays 3 disposed respectively on either side of the associated cell 20, in the case of a zone 15 intermediate, either on the one hand such a zone 48 and on the other hand a protuberance 42 in the case of the extreme zones 15, in the lower face 61 of each plate 59 are arranged, in the same longitudinal alignment, two sections 66 of channel , delimited by a respective bottom face 67 semi-cylindrical of revolution around the axis 37 if one refers to the aforementioned predetermined position, with a diameter substantially identical to that of the bottom faces 36 of the end sections 34 of channel 33.
  • Each of these channel sections 66 opens on the one hand into a respective edge zone 62 of the plate 59 and on the other hand into a cell 68 also hollowed out in the lower face 61, between the two sections 66, astride the plane 32 and symmetrically with respect thereto if reference is made to said predetermined position.
  • the channel sections 66 follow the upper part of the sections 48 of the outer peripheral face of the body 47 of the two pyrotechnic delays 3 arranged on either side of a cell 20, in the case of an intermediate section 15, or the upper part of an extreme section 48 of the outer peripheral face of the body 47 with a single pyrotechnic delay 3 and the upper face 43 of a protuberance 42 in the case of a zone 15 extreme.
  • the socket 68 like the channel sections 66, correspond to projections, respectively 72, 73, on the upper face 60 of the plate 59, but these projections are devoid of function.
  • the channel sections 66 have respective longitudinal dimensions substantially identical to those of an end section 34 of channel 33, so that the cell 68 is superimposed on the corresponding cell 20, if one refers to the longitudinal direction .
  • the cell 68 is smaller than a cell 20, and placed so as to be completely superimposed on the corresponding compartment 28, by an unreferenced zone closer to its edge zone 65 , while it is superimposed, by a zone also not referenced closer to the edge 64, only to a part of the corresponding compartment 27, namely approximately half of this compartment 27 closest to the wall 26.
  • the cell 68 directly adjoins the edge region 64 of the plate 59 and has a longitudinal rim 69 projecting under the lower face 61 of the plate 59.
  • This rim 69 symmetrical with respect to the plane 32, has perpendicularly to the latter longitudinal dimensions slightly smaller than those of the compartment 27, so as to penetrate into the latter. Perpendicular to the lower face 61 of the plate 59, it has dimensions smaller than those of the compartment 27 perpendicular to the face 16, so that it allows the passage of the end zone 29 of a respective wick 9 and, in as regards one of the end zones 15, that of the free end 57 of the cord 58, inside the compartment 27, however constituting with the wall 26 a baffle imposing on this end zone 29 and on this free end 57 a contraction and contractions bending ensuring their immobilization inside the cell 20 when the cover 2 is fixed on the base 1.
  • the plate 59 carries integrally, in its edge area 64, respectively in the immediate vicinity of each edge area 62, two legs 70 mutually symmetrical with respect to the plane 32 and having, when viewed in section through a transverse plane, the shape of a square having a first branch projecting under the lower face 61 of the plate 59 and perpendicular to this face 61, to which it is connected, and a second branch parallel to the face 61 to which it is connected by the first branch and forming a transverse projection relative to the edge 64.
  • each zone 15 of the base 1 has, respectively on either side of the compartment 27, two holes 71 passing through the base 1 from its upper face 16 to its lower face 17, these two holes 71 being mutually symmetrical with respect to the respective plane 32 and arranged with respect to the latter in an identical manner to the legs 70.
  • the legs 70 and the holes 71 are dimensioned, in a manner easily determinable by a person skilled in the art, so that the legs 70 can be introduced by their second branch into the holes 71 by placing the plate 59 perpendicular to the base. 1, then fold the plate 2 by rotating it by the legs 70 in the holes 71 until bringing its lower face 61 in flat contact with the upper face 16 of the base 1, the second branches of the legs 70 then coming be housed under the underside 17 of the base 1 to retain the cover 2 in the immediate vicinity of the edge zone 64.
  • two hooks 71 are also provided which are also mutually symmetrical with respect to the plane 32 and projecting under the lower face 61 of the plate 59.
  • These two hooks 71 are positioned, easily determinable by a skilled person, so that during the aforementioned folding, they snap elastically on the edge 18 of the base 1, in a longitudinal area of this edge 18 transversely opposite the zone thereof corresponding to the edges 31 of the compartments 27 of the cells 20.
  • This assembly can be carried out while the base 1 is already fixed on the frame 7 of the mortar battery 4, the tubes 5 of which contain the bombs 8, or before mounting the base 1 on the frame 7 and introduction of the bombs 8 in the tubes 5.
  • the covers 2 being assumed to be initially separated from the base 1, the compartment 28 of a first cell 20 is placed in the free end of a wick 9, corresponding to the bomb 8 intended to be associated with this cell 20, in taking care to overlap by the region 29 of this wick 9 the edges 30 and 31. If the cell 20 thus treated corresponding to one of the extreme zones 15 and is intended to receive in addition the free end 57 of the inflammatory cord 58, the free end 57 is arranged identically to the free end 10.
  • a pyrotechnic delay 3 suitably chosen, taking care to place the longitudinally central section 49 of its outer peripheral face in the hole constituting the central section 35 of the channel 33.
  • the corresponding cover 2 is presented by orienting its plate 59 perpendicularly to the base 1 so as to introduce the two tabs 70 into the holes 71, then the cover 2 is folded down on the base 1 as described above. , which automatically causes the hooks 71 to click into place on the edge 18 of the base.
  • the wick 9 and, if necessary, the igniter cord 58 are trapped in the cell 20 and the free end 10 of the wick 9, as well as if necessary the free end 57 of the igniter cord 58 , are placed directly or practically directly opposite the fire restoring cone 56 of the or each associated delay 3.
  • the wick 59 corresponding to the same cell 20 is ignited simultaneously as this cord 58 and the pyrotechnic composition 55 of the delay 3 opening into this cell.
  • the corresponding bomb 8 is fired and, after a delay depending on the pyrotechnic delay 3, it simultaneously ignites the wick 9 of the bomb 8 located in the immediately adjacent tube 5 and the pyrotechnic composition 55 of the delay 3 longitudinally following. The phenomenon is repeated until the last extreme zone 15 where only a wick 9 is lit, the aforementioned face 46 preventing at this level the exit of the fire outside the closed assembly defined by the cells 20 and 68 as well as by the faces internal peripherals 54 of the bodies 47, as well as at the level of the extreme zone 15 receiving the inflammatory cord 58.
  • the continuity of the barrier opposing the direct passage of the light is ensured respectively by the head of the nail 11 and by the body 47 of the delay 3.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Battery Mounting, Suspending (AREA)
  • Lighters Containing Fuel (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)

Abstract

The invention relates to the clustering of firework bombs, employing for this purpose a device comprising a base plate (1) provided with cells (20) each of which is capable of receiving a free end (10) of a wick (9) and, in the case of one of them, a free end (57) of an igniter cord (58). Between two consecutive cells (20) a channel (33) is arranged, in the base plate (1), capable of receiving a pyrotechnic delay (3) ensuring the transmission of firing between the cells (20). Means forming a lid (2) retain on the base plate (1) the free ends (10, 57) of the wicks (9) and of the igniter cord (58) and the pyrotechnic delays (3). The clustering operation is made easier thereby and its result is made more reliable thereby. Changes in delay on firing ranges are made considerably easier. <IMAGE>

Description

La présente invention concerne un dispositif de grappage de bombes d'artifice dont chacune présente une mèche, comportant une embase en forme de barrette propre d'une part à être fixée le long d'une batterie de mortiers dont chacun est destiné à recevoir une bombe d'artifice respective et d'autre part à recevoir de façon solidaire une extrémité libre de chaque mèche, des retards pyrotechniques raccordant les extrémités libres de mèche deux à deux et une extrémité libre d'un cordon inflammateur de mise à feu des bombes par l'intermédiaire des retards et des mèches.The present invention relates to a device for clustering fireworks bombs, each of which has a wick, comprising a base in the form of a bar suitable, on the one hand, for being fixed along a battery of mortars, each of which is intended to receive a bomb. respective fireworks and on the other hand to receive in solidarity a free end of each wick, pyrotechnic delays connecting the free ends of wick two by two and a free end of an igniter cord for firing bombs by the 'delays and wicks.

Dans l'état actuel de la technique, la liaison entre les retards, les mèches des bombes et le cordon inflammateur s'effectue à l'aide d'un montage comportant des gaines de papier kraft maintenues autour de ces différents composants par une ligature, le tout étant fixé sur la barrette, réalisée en bois, également par ligature.In the current state of the art, the connection between the delays, the wicks of the bombs and the igniter cord is carried out using an assembly comprising sheaths of kraft paper maintained around these various components by a ligature, the whole being fixed on the bar, made of wood, also by ligature.

La réalisation de ce montage est longue et fastidieuse en raison des nombreuses opérations de découpe des gaines de papier kraft et de ligaturage. Elles sont en outre délicates, le soin apporté au ligaturage et au passage des mèches étant primordial pour avoir une bonne transmission du feu entre les différents composants.The realization of this assembly is long and tedious due to the numerous operations of cutting kraft paper sheaths and tying. They are also delicate, the care given to the tying and the passage of the locks being essential to have a good transmission of the fire between the different components.

En outre, si l'artificier sur le terrain désire changer le cadencement du tir des bombes, ce qui implique le remplacement des retards pyrotechniques, cette modification nécessite la suppression préalable des ligatures puis leur rétablissement, et on retrouve les inconvénients ci-dessus, généralement aggravés par le fait que l'on ne dispose pas sur le terrain de conditions aussi favorables qu'en atelier.In addition, if the artificer on the ground wishes to change the timing of the firing of the bombs, which involves the replacement of pyrotechnic delays, this modification requires the prior removal of the ligatures and then their restoration, and we find the above drawbacks, generally compounded by the fact that conditions in the field are not as favorable as in the workshop.

Enfin, le montage connu est particulièrement vulnérable à l'humidité.Finally, the known assembly is particularly vulnerable to humidity.

Le but de la présente invention est de remédier à ces inconvénients et, à cet effet, la présente invention propose un dispositif de grappage du type indiqué en préambule, caractérisé en ce que l'embase comporte une pluralité d'alvéoles transversaux de réception d'une extrémité libre respective de mèche, répartis longitudinalement à raison d'un alvéole par extrémité libre de mèche et débouchant dans une même face longitudinale de l'embase, des canaux longitudinaux de réception d'un retard pyrotechnique respectif, raccordant les alvéoles deux à deux et débouchant dans ladite face, et des moyens de fixation de moyens formant couvercle sur ladite face, en ce que sont prévus par ailleurs des moyens formant couvercle, comportant des moyens de fixation aptes à coopérer avec lesdits moyens de fixation de l'embase pour assurer une fixation des moyens formant couvercle sur ladite face dans une position dans laquelle ils définissent avec les alvéoles et les canaux un ensemble fermé en dégageant toutefois un passage respectif pour les mèches et l'inflammateur, et en ce que les alvéoles et les canaux et/ou les moyens formant couvercle sont conformés de telle sorte que, lorsque le couvercle est fixé sur ladite face, il emprisonne de façon solidaire une extrémité libre de mèche dans chaque alvéole, un retard pyrotechnique dans chaque canal de réception et une extrémité libre de cordon inflammateur dans l'un des alvéoles, dans une relation de continuité pyrotechnique.The object of the present invention is to remedy these drawbacks and, to this end, the present invention provides a grading device of the type indicated in the preamble, characterized in that the base comprises a plurality of transverse cells for receiving a free end respective wick, distributed longitudinally at the rate of one cell per free end of the wick and opening into the same longitudinal face of the base, longitudinal channels for receiving a respective pyrotechnic delay, connecting the cells two by two and opening into said face, and means for fixing means forming a cover on said face, in that there are also provided means forming a cover, comprising fixing means capable of cooperating with said means for fixing the base to ensure fixing of the means forming a cover on said face in a position in which they define with the cells and the channels a closed assembly, however, freeing a respective passage for the wicks and the igniter, and in that the cells and the channels and / or the means forming a cover are shaped so that, when the cover is fixed on said face, it traps in an integral manner a free end of the wick in each cell, a pyrotechnic delay in each receiving channel and a free end of igniter cord in one of the cells, in a pyrotechnic continuity relationship.

L'embase et les moyens formant couvercle sont par exemple réalisés par moulage en matière synthétique.The base and the cover means are for example made by molding in synthetic material.

Un Homme du métier comprendra aisément qu'un tel dispositif permette une confection beaucoup plus rapide des grappes de bombes, les opérations de découpe des gaines de papier kraft et de ligaturage étant supprimées, et qu'il soit beaucoup plus facile de disposer les retards pyrotechniques, les extrémités libres de mèche et l'extrémité libre du cordon inflammateur dans une relation propre à permettre une bonne transmission du feu entre eux, la position des alvéoles et des canaux prédéterminant la position de ces différents composants et par conséquent cette relation.A person skilled in the art will readily understand that such a device allows a much quicker preparation of the bomb clusters, the operations of cutting the kraft paper sheaths and of ligating being eliminated, and that it is much easier to arrange the pyrotechnic delays. , the free ends of the wick and the free end of the inflammatory cord in a relationship capable of allowing good transmission of fire between them, the position of the cells and of the channels predetermining the position of these various components and therefore this relationship.

Ces avantages se retrouvent quel que soit le lieu dans lequel on réalise le grappage et, notamment, si ce grappage s'effectue sur le terrain et il est en particulier possible, dans des conditions bien meilleures, de changer le cadencement du tir sur le terrain, même en toute dernière minute, en conservant toute la fiabilité du montage.These advantages are found regardless of the place in which the clustering is carried out and, in particular, if this clustering is carried out on the ground and it is in particular possible, under much better conditions, to change the timing of the shooting on the ground , even at the very last minute, while retaining all the reliability of the assembly.

De préférence, les alvéoles sont identiques afin d'assurer une identité des conditions de transmission de feu entre les différents retards pyrotechniques et les différentes extrémités libres de mèche, et les canaux de réception des retards pyrotechniques sont identiques, pour faciliter une interchangeabilité des retards pyrotechnique. De même, lorsque les moyens formant couvercle comportent un couvercle par alvéole, ce qui facilite un montage progressif des retards pyrotechniques et des extrémités libres de mèche sur le dispositif, les couvercles sont de préférence mutuellement identiques, ce qui offre à la fois l'avantage de les rendre interchangeables et de favoriser l'interchangeabilité des retards pyrotechniques, et l'avantage d'autoriser une fabrication standardisée, particulièrement économique notamment lorsqu'elle s'effectue par moulage.Preferably, the cells are identical in order to ensure an identity of the conditions of fire transmission between the different pyrotechnic delays and the different free ends of the wick, and the channels for receiving the pyrotechnic delays are identical, to facilitate the interchangeability of the pyrotechnic delays . Similarly, when the cover means comprise a cover per cell, which facilitates progressive mounting of the pyrotechnic delays and the free ends of the wick on the device, the covers are preferably mutually identical, which offers both the advantage to make them interchangeable and to promote the interchangeability of pyrotechnic delays, and the advantage of allowing standardized manufacturing, particularly economical especially when it is carried out by molding.

Pour faciliter un changement des retards pyrotechniques sur le terrain, même immédiatement avant le tir, les moyens de fixation des moyens formant couvercle sur l'embase sont de préférence réversibles, c'est-à-dire libérables sans destruction, ce qui permet de réutiliser les moyens formant couvercle après les avoir démontés.To facilitate a change in pyrotechnic delays in the field, even immediately before firing, the means for fixing the means forming a cover to the base are preferably reversible, that is to say releasable without destruction, which makes it possible to reuse the means forming a cover after having dismantled them.

Par exemple, les moyens de fixation comportent des moyens d'encliquetage, faciles à réaliser sous forme réversible notamment lorsque l'embase et les moyens formant couvercle sont réalisés en un matériau synthétique, ce qui permet en outre de réaliser ces moyens de fixation directement lors du moulage, de façon particulièrement simple et économique.For example, the fixing means comprise latching means, easy to produce in reversible form, in particular when the base and the cover means are made of a synthetic material, which also makes it possible to produce these fixing means directly during molding, in a particularly simple and economical way.

Naturellement, un positionnement rigoureux des retards pyrotechniques dans les canaux prévus pour leur réception favorise le bon fonctionnement du montage et la présente invention propose également un retard pyrotechnique destiné à être utilisé conjointement avec le dispositif de grappage selon l'invention, lequel retard pyrotechnique est caractérisé en ce qu'il comporte un corps tubulaire longitudinal, par exemple métallique, garni intérieurement d'une composition pyrotechnique à retard, ouvert à ses extrémités transversales et présentant extérieurement une conformation d'immobilisation par l'embase et les moyens formant couvercle.Naturally, a rigorous positioning of the pyrotechnic delays in the channels provided for their reception promotes the proper functioning of the assembly and the present invention also proposes a pyrotechnic delay intended to be used in conjunction with the clustering device according to the invention, which pyrotechnic delay is characterized in that it comprises a longitudinal tubular body, for example metallic, internally lined with a delay pyrotechnic composition, open at its transverse ends and externally having an immobilization conformation by the base and the cover means.

Par exemple, à cet effet, les canaux de réception et/ou les moyens formant couvercle comportent des épaulements transversaux, mutuellement opposés, de butée longitudinale pour les retards pyrotechniques et les corps tubulaires de ces derniers comportent eux-mêmes, pour coopérer avec ces épaulements transversaux mutuellement opposés, des épaulements transversaux également mutuellement opposés. Les canaux de réception et/ou les moyens formant couvercle, d'une part, et les corps tubulaires, d'autre part, sont dimensionnés longitudinalement, entre les épaulements respectifs, de telle sorte que s'établisse une butée mutuelle dans les deux sens longitudinaux, ce qui fixe avec précision la position des retards pyrotechniques sur l'embase, en direction longitudinale.For example, for this purpose, the reception channels and / or the means forming a cover comprise mutually opposite transverse shoulders, of longitudinal abutment for the pyrotechnic delays and the tubular bodies of the latter themselves, to cooperate with these shoulders mutually opposite transverse shoulders, also mutually opposite transverse shoulders. The receiving channels and / or the cover means, on the one hand, and the tubular bodies, on the other hand, are dimensioned longitudinally, between the respective shoulders, so that a mutual stop is established in both directions. longitudinal, which precisely fixes the position of the pyrotechnic delays on the base, in the longitudinal direction.

La fixation des extrémités libres des mèches dans l'alvéole respectif peut être assurée de façon particulièrement simple lorsque, selon un mode de réalisation préféré, les alvéoles et/ou les moyens formant couvercle comportent des moyens formant chicane de rétention de l'extrémité libre de mèche respective. La réalisation de tels moyens, notamment par moulage en une pièce avec l'embase et/ou les moyens formant couvercle est aisée.The fixing of the free ends of the wicks in the respective cell can be ensured in a particularly simple way when, according to a preferred embodiment, the cells and / or the cover means comprise means forming a baffle for retaining the free end of respective wick. The production of such means, in particular by molding in one piece with the base and / or the means forming a cover, is easy.

On pourrait prévoir que la transmission du feu entre les retards pyrotechniques et les extrémités libres des mèches s'effectue par l'intermédiaire d'une composition pyrotechnique dans laquelle on noierait les extrémités libres des mèches à l'intérieur des alvéoles.It could be provided that the transmission of fire between the pyrotechnic delays and the free ends of the wicks is effected by means of a pyrotechnic composition in which the free ends of the wicks are drowned inside the cells.

Toutefois, on préfère une transmission directe, ne nécessitant pas d'opérations supplémentaires de bourrage des alvéoles au moyen d'une composition pyrotechnique, et l'on prévoit à cet effet, de préférence, que les canaux de réception des retards pyrotechniques soient placés selon un même alignement longitudinal, et qu'au niveau de chaque extrémité du corps tubulaire d'un retard pyrotechnique, la composition pyrotechnique à retard présente un cone de restitution.However, direct transmission is preferred, requiring no additional operations for stuffing the cells with a pyrotechnic composition, and it is preferably provided for this purpose that the channels for receiving the pyrotechnic delays are placed according to the same longitudinal alignment, and that at each end of the tubular body of a pyrotechnic delay, the pyrotechnic delay composition has a cone of restitution.

Naturellement, il est primordial d'empêcher toute transmission du feu d'un alvéole à l'autre sans passer par l'intermédiaire du retard pyrotechnique les raccordant mutuellement et, à cet effet, ladite face et/ou les moyens formant couvercle présentent de préférence des reliefs déflecteurs transversaux entre les alvéoles, en dehors des canaux de réception des retards pyrotechniques. De tels reliefs peuvent avantageusement être réalisés par moulage, lors de la fabrication de l'embase et/ou des moyens formant couvercle par ce procédé.Naturally, it is essential to prevent any transmission of fire from one cell to another without going through the delay pyrotechnic connecting them mutually and, for this purpose, said face and / or the means forming a cover preferably have transverse baffle reliefs between the cells, outside the channels for receiving pyrotechnic delays. Such reliefs can advantageously be produced by molding, during the manufacture of the base and / or cover means by this process.

Un Homme du métier comprendra aisément que l'utilisation d'un dispositif de grappage et de retards pyrotechniques selon l'invention permette de mettre à la disposition des artificiers et du public des dispositifs de tir de feu d'artifice ne nécessitant qu'un minimum d'opérations d'assemblage sur le terrain, si bien que la présente invention s'étend à un dispositif de tir de feu d'artifice, comportant une batterie de mortiers mutuellement juxtaposés longitudinalement, caractérisé en ce qu'il comporte un dispositif de grappage selon l'invention, dont l'embase est fixée le long de la batterie de mortiers.A person skilled in the art will readily understand that the use of a device for clustering and pyrotechnic delays according to the invention makes it possible to make available to fireworks and the public fireworks firing devices requiring only a minimum of assembly operations in the field, so that the present invention extends to a fireworks firing device, comprising a battery of mortars mutually juxtaposed longitudinally, characterized in that it comprises a grappling device according to the invention, the base of which is fixed along the mortar battery.

Ce dispositif de tir de feu d'artifice peut comporter en outre des bombes d'artifice dont chacune est logée dans un mortier respectif et présente une mèche dont une extrémité libre est engagée dans un alvéole respectif, un cordon inflammateur dont une extrémité libre est engagée dans un alvéole, et des retards pyrotechniques selon l'invention dont chacun est logé dans un canal de réception respectif, les moyens formant couvercle étant fixés sur l'embase par lesdits moyens de fixation et retenant sur l'embase les extrémités libres des mèches et du cordon inflammateur et les retards pyrotechniques.This fireworks firing device can also include fireworks bombs, each of which is housed in a respective mortar and has a wick, one free end of which is engaged in a respective cell, an igniter cord, one free end of which is engaged. in a cell, and pyrotechnic delays according to the invention, each of which is housed in a respective receiving channel, the cover means being fixed to the base by said fixing means and retaining on the base the free ends of the wicks and ignition cord and pyrotechnic delays.

Le cas échéant, dans le cas d'un produit destiné au grand public, on peut alors prévoir que les moyens de fixation des moyens formant couvercle sur l'embase rendent la fixation inamovible sans destruction, afin d'éviter qu'un démontage puisse être suivi d'un remontage dans des conditions défectueuses, éventuellement dangereuses, bien qu'un dispositif selon l'invention, par la simplicité de montage qu'il autorise, permette également d'éviter les montages défectueux.If necessary, in the case of a product intended for the general public, it can then be provided that the means for fixing the means forming a cover to the base make the fixing irremovable without destruction, in order to avoid that disassembly can be followed by reassembly under defective conditions, possibly dangerous, although a device according to the invention, by the simplicity of assembly which it allows, also makes it possible to avoid defective assemblies.

D'autres caractéristiques et avantages des différents aspects de l'invention ressortiront de la description ci-dessous, relative à un exemple non limitatif de mise en oeuvre de l'invention, ainsi que des dessins annexés qui font partie intégrante de cette description.

  • La figure 1 montre une vue en perspective éclatée d'un dispositif de grappage selon l'invention, avec ses retards pyrotechniques.
  • La figure 2 montre une vue d'un dispositif de tir de feux d'artifice équipé d'un dispositif de grappage selon l'invention, prêt au tir.
  • La figure 3 montre une vue d'un retard pyrotechnique selon l'invention en coupe par un plan longitudinal.
  • La figure 4 montre une vue d'un couvercle individuel d'alvéole par le dessous, c'est-à-dire par le côté de ce couvercle destiné à être tourné vers l'embase.
  • La figure 5 montre une vue du même couvercle en coupe par un plan transversal repéré en V-V à la figure 4.
Other characteristics and advantages of the various aspects of the invention will emerge from the description below, relating to a nonlimiting example of implementation of the invention, as well as from the appended drawings which form an integral part of this description.
  • Figure 1 shows an exploded perspective view of a clustering device according to the invention, with its pyrotechnic delays.
  • Figure 2 shows a view of a fireworks firing device equipped with a clustering device according to the invention, ready to fire.
  • Figure 3 shows a view of a pyrotechnic delay according to the invention in section through a longitudinal plane.
  • FIG. 4 shows a view of an individual cell cover from below, that is to say from the side of this cover intended to be turned towards the base.
  • FIG. 5 shows a view of the same cover in section through a transverse plane marked in VV in FIG. 4.

On se réfèrera en premier lieu aux figures 1 et 2, où l'on a désigné par 1 l'embase ou barrette du dispositif de grappage selon l'invention, par 2 chaque couvercle d'alvéole, visible plus en détails aux figures 4 et 5, et par 3 chaque retard pyrotechnique, visible plus en détail à la figure 3.Reference will firstly be made to FIGS. 1 and 2, where the base or bar of the gripping device according to the invention has been designated by 1, by 2 each cell cover, visible in more detail in FIGS. 4 and 5, and by 3 each pyrotechnic delay, visible in more detail in FIG. 3.

A la figure 2, on a en outre illustré une batterie 4 de mortiers, comportant une juxtaposition de tubes de mortier 5 mutuellement identiques, sensiblement verticaux, suivant un alignement 6 qui constituera par la suite une référence de longitudinalité, ces tubes 5 étant à cet effet montés dans un bâti 7 par exemple en bois, et renfermant chacun une bombe d'artifice 8 munie d'une mèche 9 présentant une extrémité libre 10 immobilisée entre l'embase 1 et un couvercle 2 respectif lorsque la batterie 4 est prête au tir, comme il apparaîtra plus loin.In FIG. 2, a battery 4 of mortars has also been illustrated, comprising a juxtaposition of mutually identical mortar tubes 5, substantially vertical, in an alignment 6 which will subsequently constitute a longitudinal reference, these tubes 5 being at this effect mounted in a frame 7 for example made of wood, and each containing a fireworks bomb 8 provided with a wick 9 having a free end 10 immobilized between the base 1 and a respective cover 2 when the battery 4 is ready to fire , as will appear later.

Notamment en référence à cet état de la batterie 4, l'embase 1 est fixée sur le bâti 7, par exemple au moyen de clous 11, à proximité immédiate des bouches 12 des tubes 5, et longe l'alignement de ces derniers, naturellement sans interférer avec leurs bouches 12 afin de ne pas constituer d'obstacle à la sortie des bombes 8.In particular with reference to this state of the battery 4, the base 1 is fixed to the frame 7, for example by means of nails 11, in the immediate vicinity of the mouths 12 of the tubes 5, and runs along the alignment of the latter, naturally without interfering with their mouths 12 so as not to constitute an obstacle to the exit of the bombs 8.

Pour des raisons de commodité, le dispositif de grappage selon l'invention sera décrit en référence à la position qu'il occupe ainsi sur le bâti 7 d'une batterie 4 de mortiers, dans l'exemple illustré à la figure 2, étant entendu qu'il n'en résulte aucune limitation notamment quant à l'orientation qu'un dispositif de grappage selon l'invention peut occuper en service.For reasons of convenience, the gripping device according to the invention will be described with reference to the position which it thus occupies on the frame 7 of a battery 4 of mortars, in the example illustrated in FIG. 2, it being understood that it does not result in any limitation in particular as to the orientation that a gripping device according to the invention can occupy in service.

Si l'on se réfère ainsi à la position illustrée à la figure 2, l'embase 1 présente une forme générale plate en direction verticale 13 et allongée suivant la direction horizontale longitudinale 14 définie par l'alignement 6, de façon à présenter une zone respective 15 à côté de chaque bouche 12.If one thus refers to the position illustrated in FIG. 2, the base 1 has a generally flat shape in the vertical direction 13 and elongated in the longitudinal horizontal direction 14 defined by the alignment 6, so as to present an area respective 15 next to each mouth 12.

Elle présente ainsi deux faces planes, sensiblement rectangulaires, horizontales dans sa position illustrée à la figure 2, à raison d'une face supérieure 16 et d'une face inférieure 17, raccordées mutuellement par un chant vertical 18. Les grands côtés, non référencés, des faces 16 et 17 sont orientés longitudinalement et leurs petits côtés, également non référencés, transversalement.It thus has two planar faces, substantially rectangular, horizontal in its position illustrated in FIG. 2, on the basis of an upper face 16 and a lower face 17, mutually connected by a vertical edge 18. The long sides, not referenced , faces 16 and 17 are oriented longitudinally and their short sides, also not referenced, transversely.

En vue de recevoir les clous 11, l'embase 1 est percée de part en part, entre ses faces 16 et 17, de trous 19 localisés respectivement entre deux zones 15 voisines. Dans l'exemple illustré où les zones 15 sont au nombre de six, il est ainsi prévu cinq trous 19 de clouage de l'embase 1 sur le bâti 7 de la batterie 4 de mortiers, étant entendu qu'un nombre différent, de même que d'autres modes de fixation de l'embase 1 sur le bâti 7, pourraient être prévus sans que l'on sorte pour autant du cadre de la présente invention.In order to receive the nails 11, the base 1 is pierced right through, between its faces 16 and 17, with holes 19 located respectively between two neighboring zones 15. In the example illustrated where there are six zones 15, there are thus provided five holes 19 for nailing the base 1 on the frame 7 of the mortar battery 4, it being understood that a different number, likewise that other methods of fixing the base 1 to the frame 7 could be provided without departing from the scope of the present invention.

Dans chaque zone 15, la face supérieure 16 de l'embase 1 est creusée d'un alvéole respectif 20 allongé suivant une direction transversale horizontale et présentant par exemple la forme d'un parallélépipède rectangle. La présence de chaque alvéole 20 se traduit par la présence, sous la face inférieure 17, d'une saillie 21 qui présente également, dans cet exemple, la forme d'un parallélépipède rectangle délimité vers le bas par une face inférieure 22 plane, parallèle à la face 17. Les faces 22 des différentes saillies 21 correspondant aux différents alvéoles 20 sont coplanaires entre elles de même qu'avec un chant inférieur longitudinal 23 d'une nervure 24 de raidissement de l'embase 1, laquelle nervure 24 est également placée en saillie sous la face inférieure 17 de celle-ci et s'étend sur la totalité de la dimension longitudinale de l'embase 1, hormis au niveau des trous 19, qu'elle croise. Les faces inférieures 22 des saillies 21 et le chant inférieur 23 de la nervure 24 peuvent ainsi servir à un appui stable de l'embase 1 sur tout support plan, et par exemple sur un bord 25 longitudinal, horizontal, du bâti 7 comme on l'a illustré à la figure 2, les clous traversant l'embase 1 de part en part étant cloués dans ce bord 25.In each zone 15, the upper face 16 of the base 1 is hollowed out of a respective cell 20 elongated in a horizontal transverse direction and having, for example, the shape of a rectangular parallelepiped. The presence of each cell 20 results in the presence, under the lower face 17, of a projection 21 which also has, in this example, the shape of a rectangular parallelepiped delimited downwards by a flat lower face 22, parallel on face 17. Faces 22 of different projections 21 corresponding to the different cells 20 are coplanar with each other as with a longitudinal lower edge 23 of a rib 24 for stiffening the base 1, which rib 24 is also projecting under the underside 17 of that -ci and extends over the entire longitudinal dimension of the base 1, except at the level of the holes 19, which it crosses. The lower faces 22 of the projections 21 and the lower edge 23 of the rib 24 can thus be used for stable support of the base 1 on any flat support, and for example on a longitudinal, horizontal edge 25 of the frame 7 as shown in FIG. illustrated in FIG. 2, the nails passing through the base 1 right through being nailed into this edge 25.

Chaque alvéole 20 est destiné à recevoir l'extrémité libre 10 d'une mèche 9 respective et, pour contribuer à immobiliser cette extrémité libre 10 par rapport à l'embase 1 dans des conditions qui seront détaillées plus loin, présente avantageusement des moyens formant chicane, dans l'exemple illustré sous la forme d'une paroi longitudinale 26 plate comme la nervure 24, dont elle constitue un prolongement, sans discontinuité, à l'intérieur de chaque alvéole 20. Chaque paroi 26 présente un bord supérieur 30 de niveau avec la face supérieure 16 de l'embase 1 et subdivise l'alvéole 20 correspondant en deux compartiments 27, 28 dont chacun présente la forme d'un parallélépipède rectangle et qui sont mutuellement juxtaposés suivant une direction transversale horizontale. Suivant cette direction, les deux compartiments 27 et 28 présentent des dimensions différentes, le compartiment 28 de plus grande dimension étant destiné à recevoir l'extrémité libre 10 de la mèche 9 correspondante alors que le compartiment 27 de plus petite dimension est destiné à recevoir une zone 29 de la mèche 9 directement adjacente à cette extrémité libre 10. Ce compartiment 27 jouxte directement le chant 18 de l'embase 1, par un bord supérieur 31 placé de niveau avec la paroi 16, et l'embase 1 est montée sur le bâti 7 de la batterie 4 de mortiers de telle sorte que chaque bord 31 jouxte la bouche 12 d'un tube 5 respectif, les différents alvéoles 20 étant répartis longitudinalement sur l'embase 1 selon un pas non référencé identique au pas non référencé de répartition longitudinale des tubes 5.Each cell 20 is intended to receive the free end 10 of a respective wick 9 and, to help immobilize this free end 10 relative to the base 1 under conditions which will be detailed below, advantageously has means forming a baffle , in the example illustrated in the form of a longitudinal wall 26 flat like the rib 24, of which it constitutes an extension, without discontinuity, inside each cell 20. Each wall 26 has an upper edge 30 level with the upper face 16 of the base 1 and subdivides the corresponding cell 20 into two compartments 27, 28 each of which has the shape of a rectangular parallelepiped and which are mutually juxtaposed in a horizontal transverse direction. In this direction, the two compartments 27 and 28 have different dimensions, the larger compartment 28 being intended to receive the free end 10 of the corresponding wick 9 while the smaller compartment 27 is intended to receive a zone 29 of the drill bit 9 directly adjacent to this free end 10. This compartment 27 directly adjoins the edge 18 of the base 1, by an upper edge 31 placed flush with the wall 16, and the base 1 is mounted on the frame 7 of the battery 4 of mortars so that each edge 31 adjoins the mouth 12 of a respective tube 5, the various cells 20 being distributed longitudinally on the base 1 according to a not referenced pitch identical to the not referenced distribution pitch longitudinal of the tubes 5.

Les alvéoles 20 sont mutuellement identiques et chacun d'entre eux est symétrique par rapport à un plan transversal respectif 32 qui constitue un plan de symétrie pour l'ensemble de la zone 15 respectivement correspondante, si l'on excepte les zones 15 longitudinalement extrêmes, légèrement différentes comme il apparaitra plus loin. Ce plan 32 constitue également un plan de symétrie pour le couvercle 2 respectivement correspondant lorsqu'il est fixé sur l'embase 1, et ceci quel que soit le couvercle 2 et la zone 15 considérés.The cells 20 are mutually identical and each of them is symmetrical with respect to a respective transverse plane 32 which constitutes a plane of symmetry for the whole of the corresponding zone 15 respectively, except for the longitudinally extreme zones 15, slightly different as it will appear later. This plane 32 also constitutes a plane of symmetry for the lid 2 respectively corresponding when it is fixed on the base 1, and this whatever the lid 2 and the zone 15 considered.

Les compartiments 28 des différents alvéoles 20 sont raccordés deux à deux par des canaux 33, mutuellement alignés suivant un axe longitudinal 37 et aménagés en creux dans la face supérieure 16, ce qui donne lieu à la formation d'un renflement longitudinal non référencé, dénué de fonction particulière, sur la face inférieure 17. Chaque canal 33 débouche librement dans les compartiments 28 associés et en outre, au même titre que les alvéoles 20, dans la face supérieure 16 de l'embase 1.The compartments 28 of the various cells 20 are connected two by two by channels 33, mutually aligned along a longitudinal axis 37 and hollowed out in the upper face 16, which gives rise to the formation of a longitudinal bulge not referenced, stripped of particular function, on the lower face 17. Each channel 33 opens freely into the associated compartments 28 and, in addition, like the cells 20, in the upper face 16 of the base 1.

Chaque canal 33 comporte dans l'exemple illustré trois tronçons mutuellement juxtaposés longitudinalement, à raison de deux tronçons longitudinalement extrêmes 34 et d'un tronçon longitudinalement central 35.Each channel 33 comprises in the example illustrated three mutually juxtaposed sections longitudinally, at the rate of two longitudinally extreme sections 34 and a longitudinally central section 35.

Les tronçons extrêmes 34, par lesquels chaque canal 33 débouche dans les deux compartiments 28 correspondants, présentent en retrait par rapport à la face 16 une face de fond 36 qui est dans l'exemple illustré hémicylindrique de révolution autour de l'axe 37, lequel est situé dans le plan géométrique de la face 16. Le rayon, non référencé, des faces de fond 36 est inférieur à la profondeur des alvéoles 20 perpendiculairement à la face supérieure 16 de l'embase, si bien que le renflement, non référencé, qui leur correspond dans la face 15, reste en retrait par rapport aux faces inférieures 22 des saillies 21 et au chant 23 de la nervure 24. Les deux tronçons 34 qui débouchent dans un même compartiment 28 sont mutuellement symétriques par rapport au plan 32 correspondant en ce qui concerne les zones 15 autres que les zones 15 extrêmes, un seul canal 33 débouchant dans les compartiments 28 des alvéoles 20 correspondant aux zones 15 extrêmes.The end sections 34, through which each channel 33 opens into the two corresponding compartments 28, have set back with respect to the face 16 a bottom face 36 which is in the example illustrated semi-cylindrical of revolution around the axis 37, which is located in the geometric plane of the face 16. The radius, not referenced, of the bottom faces 36 is less than the depth of the cells 20 perpendicular to the upper face 16 of the base, so that the bulge, not referenced, which corresponds to them in the face 15, remains set back with respect to the lower faces 22 of the projections 21 and to the edge 23 of the rib 24. The two sections 34 which open into the same compartment 28 are mutually symmetrical with respect to the plane 32 corresponding in as regards the zones 15 other than the extreme zones 15, a single channel 33 opening into the compartments 28 of the cells 20 corresponding to the extreme zones 15.

Dans leur zone centrale 15, par contre, les canaux 33 sont démunis de fond. En d'autres termes, chaque zone centrale 35 est définie par un trou traversant l'embase 1 de part en part, c'est-à-dire de sa face supérieure 16 à sa face inférieure 17. Chacun de ces trous présente lorsqu'il est vue en plan la forme d'un rectangle, définie par deux zones longitudinales de chant 38, mutuellement symétriques par rapport à l'axe 37 et espacées perpendiculairement à celui-ci d'une distance supérieure au diamètre des faces de fond 36 des tronçons extrêmes 34, et par deux zones transversales de chant 40 qui, du fait de ce dimensionnement comparé de l'espacement mutuel des zones de chant 38 et 39, d'une part, et du diamètre des faces 36, d'autre part, définissent des épaulements transversaux, tournés l'un vers l'autre.In their central zone 15, on the other hand, the channels 33 have no bottom. In other words, each central zone 35 is defined by a hole passing through the base 1 right through, that is to say from its upper face 16 to its lower face 17. Each of these holes presents when it is seen in plan the shape of a rectangle, defined by two longitudinal edge zones 38, mutually symmetrical with respect to the axis 37 and spaced perpendicularly to the latter by a distance greater than the diameter of the bottom faces 36 of the extreme sections 34, and by two transverse edge zones 40 which, due to this comparative dimensioning of the mutual spacing of the edge zones 38 and 39, on the one hand, and the diameter of the faces 36, on the other hand, define transverse shoulders, facing one another.

Les différents canaux 33 sont identiques, notamment quant au dimensionnement de leurs différents tronçons 34, 35.The different channels 33 are identical, in particular as regards the dimensioning of their different sections 34, 35.

Les zones 15 extrêmes se différencient des autres zones 15 non seulement par leur absence de symétrie par rapport au plan 32 respectif et par le fait qu'un seul canal 33 débouche dans le compartiment 28 de l'alvéole 20 correspondant, mais également par le fait que dans le prolongement de ce canal unique 33 suivant l'axe 37, de l'autre côté du compartiment 28, l'embase 1 présente en saillie sur sa face supérieure 16 une protubérance respective 42 à laquelle correspond un creux 43, sans fonction particulière, de la face inférieure 17.The extreme zones 15 differ from the other zones 15 not only by their lack of symmetry with respect to the respective plane 32 and by the fact that a single channel 33 opens into the compartment 28 of the corresponding cell 20, but also by the fact that in the extension of this single channel 33 along the axis 37, on the other side of the compartment 28, the base 1 has projecting on its upper face 16 a respective protuberance 42 to which corresponds a hollow 43, without particular function , from the underside 17.

Chaque protubérance 42 présente, sur une dimension longitudinale correspondant à celle d'un tronçon extrême 34 de canal 33, à partir du compartiment 28 correspondant, une face supérieure 43 hémicylindrique de révolution autour de l'axe 37 avec un diamètre identique à celui des faces de fond 36 des zones 34 des canaux 33. Dans le sens d'un éloignement longitudinal par rapport au compartiment 28 correspondant, cette face 43 se raccorde à un épaulement transversal 44 tourné vers ce compartiment 28 ; dans le sens d'un éloignement par rapport à l'axe 37, cet épaulement se raccorde lui-même à une face 45 également hémicylindrique de révolution autour de l'axe 37 mais avec un diamètre supérieur à celui de la face 43, laquelle face 45 se raccorde par ailleurs au chant 18 de l'embase 1.Each protuberance 42 has, on a longitudinal dimension corresponding to that of an extreme section 34 of channel 33, from the corresponding compartment 28, an upper semi-cylindrical face 43 of revolution around the axis 37 with a diameter identical to that of the faces bottom 36 of the zones 34 of the channels 33. In the direction of a longitudinal distance with respect to the corresponding compartment 28, this face 43 is connected to a transverse shoulder 44 turned towards this compartment 28; in the direction of a distance from the axis 37, this shoulder connects itself to a face 45 also semi-cylindrical of revolution around the axis 37 but with a diameter greater than that of the face 43, which face 45 is also connected to the edge 18 of the base 1.

Chacune des protubérances 42 ainsi définies présente vers l'alvéole 20 respectivement correspondant une face transversale plane 46 continue, prolongeant coplanairement une face transversale non référencée de délimitation du compartiment 28 en question.Each of the protrusions 42 thus defined has towards the cell 20 respectively corresponding a flat transverse face 46 continues, coplanarly extending an unreferenced transverse face delimiting the compartment 28 in question.

Chacun des canaux 33 est destiné à recevoir un retard pyrotechnique respectif 3 présentant une forme propre à y être immobilisé par fixation du couvercle 2 sur l'embase 1.Each of the channels 33 is intended to receive a respective pyrotechnic delay 3 having a shape suitable for being immobilized there by fixing the cover 2 to the base 1.

A cet effet, comme il ressort plus particulièrement des figures 1 à 3, chaque retard pyrotechnique 3 présente un corps tubulaire 47 présentant une forme générale de révolution autour d'un axe qui se confond avec l'axe 37, si bien que l'on a conservé la référence numérique 37 pour désigner cet axe à la figure 3. Les corps 47 des différents retards 3 sont mutuellement identiques, au moins extérieurement, de même que sont mutuellement identiques les différents canaux 33 destinés à les recevoir.To this end, as appears more particularly from FIGS. 1 to 3, each pyrotechnic delay 3 has a tubular body 47 having a general shape of revolution around an axis which merges with the axis 37, so that one has kept the reference numeral 37 to designate this axis in FIG. 3. The bodies 47 of the different delays 3 are mutually identical, at least externally, just as the different channels 33 intended to receive them are mutually identical.

Plus précisément, dans l'exemple illustré, chaque corps 47 est délimité dans le sens d'un éloignement par rapport à l'axe 37 par trois tronçons de face périphérique extérieure à raison de deux tronçons longitudinalement extrêmes 48, cylindriques de révolution autour de l'axe 37 avec un diamètre sensiblement identique à celui des faces 36 des tronçons 34 des canaux 33, et d'un tronçon longitudinalement central 49 également cylindrique de révolution autour de l'axe 37 avec un diamètre correspondant à l'écartement transversal mutuel des zones longitudinales de chant 38 d'un tronçon 35 de canal 33, de telle sorte que le tronçon 49 définisse par son raccordement avec les tronçons 48 deux épaulements 50 annulaires de révolution autour de l'axe 37, plans, perpendiculaires à celui-ci et tournés en sens mutuellement opposés.More precisely, in the example illustrated, each body 47 is delimited in the direction of a distance from the axis 37 by three sections of external peripheral face at the rate of two longitudinally extreme sections 48, cylindrical of revolution around the axis 37 with a diameter substantially identical to that of the faces 36 of the sections 34 of the channels 33, and of a longitudinally central section 49 also cylindrical of revolution around the axis 37 with a diameter corresponding to the mutual transverse spacing of the zones longitudinal edge 38 of a section 35 of channel 33, so that the section 49 defines by its connection with the sections 48 two annular shoulders 50 of revolution around the axis 37, planes, perpendicular thereto and turned in mutually opposite directions.

Ces épaulements 50 sont mutuellement espacés, longitudinalement, d'une distance sensiblement identique à la distance séparant longitudinalement les zones de chant 40 d'un tronçon central 35 de canal 33, de telle sorte que chaque retard pyrotechnique 3 puisse s'emboîter avec précision, sans possibilité de déplacement longitudinal ou transversal autre que son déplacement d'insertion schématisé par des flèches verticales à la figure 1, dans un canal 33 correspondant. Ainsi, le tronçon 49 s'insère dans le tronçon 35 en venant prendre appui transversalement sur les zones de chant 38, les épaulements 50 viennent prendre appui longitudinalement sur les épaulements définis par les zones de chant 40, et les tronçons 48 s'appliquent avec précision contre les faces de fond 36 des tronçons extrêmes 34 du canal 33 considéré.These shoulders 50 are mutually spaced, longitudinally, by a distance substantially identical to the distance longitudinally separating the edge zones 40 of a central section 35 of channel 33, so that each pyrotechnic delay 3 can fit together precisely, without the possibility of longitudinal or transverse displacement other than its insertion displacement shown diagrammatically by vertical arrows in FIG. 1, in a corresponding channel 33. So the section 49 is inserted into section 35 coming to bear transversely on the edge areas 38, the shoulders 50 come to bear longitudinally on the shoulders defined by the edge areas 40, and the sections 48 are applied precisely against bottom faces 36 of the end sections 34 of the channel 33 considered.

Dans une variante de réalisation non illustrée mais aisément compréhensible par un Homme du métier, chaque corps 37 pourrait présenter un diamètre extérieur constant, correspondant à celui des tronçons 48 précités, et les épaulements 50 d'emboîtement dans le canal 33 respectif être constitués par au moins une pièce rapportée de façon solidaire sur le corps 37 ainsi conformé, par exemple sous la forme d'un manchon tubulaire longitudinal ou de deux rondelles transversales emmanchées à force, coaxialement sur ce corps.In an alternative embodiment not illustrated but easily understood by a person skilled in the art, each body 37 could have a constant outside diameter, corresponding to that of the above-mentioned sections 48, and the shoulders 50 for fitting into the respective channel 33 be constituted by at at least one piece integrally attached to the body 37 thus shaped, for example in the form of a longitudinal tubular sleeve or two transverse washers force-fitted, coaxially on this body.

Longitudinalement à l'opposé de leur raccordement par l'épaulement 50 respectif avec le tronçon 49, les tronçons 48 se raccordent à une face extrême respective 52 du corps 47, les deux faces 52 étant annulaires, planes, de révolution autour de l'axe 37 et tournées en sens mutuellement opposés. La distance longitudinale séparant les faces extrêmes 52 est sensiblement égale à la distance longitudinale séparant mutuellement deux alvéoles 20 voisins de telle sorte qu'au niveau de chacun des compartiments 28 associés à un même canal 33, les faces 52 du retard 3 correspondant à ce canal 33 affleurent.Longitudinally opposite their connection by the respective shoulder 50 with the section 49, the sections 48 are connected to a respective end face 52 of the body 47, the two faces 52 being annular, planar, of revolution about the axis 37 and turned in opposite directions. The longitudinal distance separating the end faces 52 is substantially equal to the longitudinal distance mutually separating two neighboring cells 20 so that at the level of each of the compartments 28 associated with the same channel 33, the faces 52 of the delay 3 corresponding to this channel 33 are exposed.

Chaque face 52 du corps 47 délimite une extrémité ouverte 53 de celui-ci, débouchant ainsi directement dans un compartiment 28 d'alvéole 20. Cette extrémité ouverte est définie par le raccordement de la face 52 respective avec une face périphérique intérieure 54 du corps 47, laquelle est cylindrique de révolution autour de l'axe 37 avec un diamètre uniforme inférieur à celui des tronçons 48 de face périphérique extérieure.Each face 52 of the body 47 defines an open end 53 thereof, thus opening directly into a compartment 28 of the cell 20. This open end is defined by the connection of the respective face 52 with an inner peripheral face 54 of the body 47 , which is cylindrical of revolution around the axis 37 with a uniform diameter smaller than that of the sections 48 of the outer peripheral face.

Par cette face périphérique intérieure 54, le corps 47 retient une composition pyrotechnique à retard 55, convenablement calibrée en fonction du retard que l'on désire établir entre le tir des bombes 8 placées dans les tubes 5 associés aux deux alvéoles 20 que raccorde mutuellement le canal 33 logeant le retard 3. De préférence, la composition 55, rendue solide par tout moyen approprié, par exemple par compression, présente au niveau de chacune des extrémités 53 un cone 56 de restitution de feu, de révolution autour de l'axe 37, de telle sorte que les retards pyrotechniques 3 puissent allumer les extrémités libres 10 des mèches 9 ainsi que, le cas échéant, un autre retard pyrotechnique débouchant dans le même compartiment 28, sans contact physique entre ces différents composants.By this inner peripheral face 54, the body 47 retains a delay pyrotechnic composition 55, suitably calibrated as a function of the delay that it is desired to establish between the firing of the bombs 8 placed in the tubes 5 associated with the two cells 20 which the mutually connected channel 33 housing the delay 3. Preferably, the composition 55, made solid by any suitable means, for example by compression, has at each of the ends 53 a cone 56 for restoring fire, of revolution around the axis 37 , so that the pyrotechnic delays 3 can ignite the free ends 10 of the wicks 9 as well as, if necessary, another pyrotechnic delay opening into the same compartment 28, without physical contact between these different components.

Les couvercles 2, qui vont être décrits à présent en référence aux figures 1, 2, 4, 5, ont pour fonction, à la fois, de retenir les retards pyrotechniques 3 dans les canaux 33, et de fermer au moins pour l'essentiel les alvéoles 20 en y immobilisant les extrémités libres 10 de mèche 9 ainsi que, dans un cas, une extrémité libre 57 d'un cordon inflammateur 58, par exemple du type cordon PICKFORD.The covers 2, which will now be described with reference to FIGS. 1, 2, 4, 5, have the function, at the same time, of retaining the pyrotechnic delays 3 in the channels 33, and of closing at least essentially the cells 20 by immobilizing the free ends 10 of wick 9 therein as well as, in one case, a free end 57 of an inflammatory cord 58, for example of the PICKFORD cord type.

A cet effet, chaque couvercle 2 est propre à être fixé, de préférence de façon amovible, dans une position déterminée sur l'embase 6, comme on l'a illustré notamment à la figure 2, et c'est en référence à cette position que les couvercles 2 seront décrits à présent.To this end, each cover 2 is suitable for being fixed, preferably removably, in a determined position on the base 6, as illustrated in particular in FIG. 2, and this is with reference to this position that covers 2 will now be described.

Chacun de ces couvercles 2 présente une plaque de base 59 notamment délimitée par deux faces planes, mutuellement parallèles, à raison d'une face supérieure 60 dénuée de fonction et d'une face inférieure 61 destinée à s'appliquer à plat sur la face supérieure 16 de l'embase 1 autour d'un alvéole 20 respectif et, selon qu'il s'agit d'un alvéole 20 d'une zone 15 extrême ou d'un alvéole 20 d'une zone 15 intermédiaire, autour du tronçon extrême 34 du canal unique 33 débouchant dans cet alvéole 20 et de la protubérance 42 correspondante ou autour des deux tronçons extrêmes 34 de canal 33 débouchant dans cet alvéole 20.Each of these covers 2 has a base plate 59 in particular delimited by two plane faces, mutually parallel, on the basis of an upper face 60 devoid of function and of a lower face 61 intended to be applied flat on the upper face 16 of the base 1 around a respective cell 20 and, depending on whether it is a cell 20 of an extreme zone 15 or a cell 20 of an intermediate zone 15, around the extreme section 34 of the single channel 33 opening into this cell 20 and of the corresponding protuberance 42 or around the two end sections 34 of channel 33 opening into this cell 20.

Les deux faces 60 et 61 présentent un plan rectangulaire, défini par leur raccordement avec deux zones transversales de chant 62 mutuellement symétriques par rapport au plan 32, et par deux zones longitudinales de chant 64, 65, respectivement symétriques par rapport à ce plan 32.The two faces 60 and 61 have a rectangular plane, defined by their connection with two transverse edge zones 62 mutually symmetrical with respect to the plane 32, and by two longitudinal edge zones 64, 65, respectively symmetrical with respect to this plane 32.

Les deux zones transversales de chant 62 sont mutuellement espacées longitudinalement d'une distance qui correspond sensiblement à la distance longitudinale séparant mutuellement les tronçons centraux 35 de deux canaux 33 consécutifs, c'est-à-dire la somme des dimensions longitudinales respectives de deux tronçons extrêmes 34 et d'un compartiment 28, ou encore la somme de la dimension longitudinal d'un tronçon extrême 34, de celle de la face supérieure 43 d'une protubérance 42 et de celle d'un compartiment 28 d'alvéole 20.The two transverse edge zones 62 are mutually spaced longitudinally by a distance which corresponds substantially to the longitudinal distance mutually separating the central sections 35 from two consecutive channels 33, that is to say the sum of the respective longitudinal dimensions of two sections ends 34 and of a compartment 28, or again the sum of the longitudinal dimension of an end section 34, that of the upper face 43 of a protuberance 42 and that of a compartment 28 of cell 20.

Par ces zones de chant 62 chaque couvercle 2 appliqué à plat par sa face inférieure 61 sur la face supérieure 16 de l'embase 1 permet ainsi de compléter la butée longitudinale que constituent pour les épaulements 50 du corps 47 d'un retard pyrotechnique 3 les zones de chant 40, formant également épaulement, d'un tronçon central 35 de canal 33.By these edge zones 62 each cover 2 applied flat by its lower face 61 on the upper face 16 of the base 1 thus makes it possible to complete the longitudinal stop which constitute for the shoulders 50 of the body 47 a pyrotechnic delay 3 the edge zones 40, also forming a shoulder, of a central section 35 of channel 33.

Pour permettre, à cet effet, de loger dans chaque couvercle 2 soit des tronçons extrêmes 48 de face périphérique extérieure de deux retards pyrotechniques 3 disposés respectivement de part et d'autre de l'alvéole 20 associé, dans le cas d'une zone 15 intermédiaire, soit d'une part une telle zone 48 et d'autre part une protubérance 42 dans le cas des zones 15 extrêmes, dans la face inférieure 61 de chaque plaque 59 sont aménagés, selon un même alignement longitudinal, deux tronçons 66 de canal, délimités par une face de fond respective 67 hémicylindrique de révolution autour de l'axe 37 si l'on se réfère à la position prédéterminée précitée, avec un diamètre sensiblement identique à celui des faces de fond 36 des tronçons extrêmes 34 de canal 33. Chacun de ces tronçons de canal 66 débouche d'une part dans une zone de chant 62 respective de la plaque 59 et d'autre part dans un alvéole 68 également aménagé en creux dans la face inférieure 61, entre les deux tronçons 66, à cheval sur le plan 32 et symétriquement par rapport à celui-ci si l'on se réfère à ladite position prédéterminée.To allow, for this purpose, to accommodate in each cover 2 either end sections 48 of the outer peripheral face of two pyrotechnic delays 3 disposed respectively on either side of the associated cell 20, in the case of a zone 15 intermediate, either on the one hand such a zone 48 and on the other hand a protuberance 42 in the case of the extreme zones 15, in the lower face 61 of each plate 59 are arranged, in the same longitudinal alignment, two sections 66 of channel , delimited by a respective bottom face 67 semi-cylindrical of revolution around the axis 37 if one refers to the aforementioned predetermined position, with a diameter substantially identical to that of the bottom faces 36 of the end sections 34 of channel 33. Each of these channel sections 66 opens on the one hand into a respective edge zone 62 of the plate 59 and on the other hand into a cell 68 also hollowed out in the lower face 61, between the two sections 66, astride the plane 32 and symmetrically with respect thereto if reference is made to said predetermined position.

On conçoit aisément que par leur face de fond 67, les tronçons de canal 66 épousent la partie supérieure des tronçons 48 de face périphérique extérieure du corps 47 des deux retards pyrotechniques 3 disposés de part et d'autre d'un alvéole 20, dans le cas d'un tronçon 15 intermédiaire, ou la partie supérieure d'un tronçon extrême 48 de face périphérique extérieure du corps 47 d'un seul retard pyrotechnique 3 et la face supérieure 43 d'une protubérance 42 dans le cas d'une zone 15 extrême.It is easily understood that by their bottom face 67, the channel sections 66 follow the upper part of the sections 48 of the outer peripheral face of the body 47 of the two pyrotechnic delays 3 arranged on either side of a cell 20, in the case of an intermediate section 15, or the upper part of an extreme section 48 of the outer peripheral face of the body 47 with a single pyrotechnic delay 3 and the upper face 43 of a protuberance 42 in the case of a zone 15 extreme.

L'alvéole 68, de même que les tronçons de canal 66, correspondent à des saillies, respectivement 72, 73, sur la face supérieure 60 de la plaque 59, mais ces saillies sont dénuées de fonction.The socket 68, like the channel sections 66, correspond to projections, respectively 72, 73, on the upper face 60 of the plate 59, but these projections are devoid of function.

Les tronçons de canal 66 présentent des dimensions longitudinales respectives sensiblement identiques à celles d'un tronçon extrême 34 de canal 33, si bien que l'alvéole 68 se superpose à l'alvéole 20 correspondant, si l'on se réfère à la direction longitudinale.The channel sections 66 have respective longitudinal dimensions substantially identical to those of an end section 34 of channel 33, so that the cell 68 is superimposed on the corresponding cell 20, if one refers to the longitudinal direction .

Si l'on se réfère à une direction transversale, l'alvéole 68 est plus petit qu'un alvéole 20, et placé de façon à se superposer intégralement au compartiment 28 correspondant, par une zone non référencée plus proche de sa zone de chant 65, alors qu'il se superpose, par une zone également non référencée plus proche du chant 64, seulement à une partie du compartiment 27 correspondant, à savoir environ la moitié de ce compartiment 27 la plus proche de la paroi 26.If we refer to a transverse direction, the cell 68 is smaller than a cell 20, and placed so as to be completely superimposed on the corresponding compartment 28, by an unreferenced zone closer to its edge zone 65 , while it is superimposed, by a zone also not referenced closer to the edge 64, only to a part of the corresponding compartment 27, namely approximately half of this compartment 27 closest to the wall 26.

A ce niveau, l'alvéole 68 jouxte directement la zone de chant 64 de la plaque 59 et présente un rebord longitudinal 69 en saillie sous la face inférieure 61 de la plaque 59.At this level, the cell 68 directly adjoins the edge region 64 of the plate 59 and has a longitudinal rim 69 projecting under the lower face 61 of the plate 59.

Ce rebord 69, symétrique par rapport au plan 32, présente perpendiculairement à celui-ci des dimensions longitudinales légèrement inférieures à celles du compartiment 27, de façon à pénétrer dans ce dernier. Perpendiculairement à la face inférieure 61 de la plaque 59, il présente des dimensions inférieures à celles du compartiment 27 perpendiculairement à la face 16, de telle sorte qu'il autorise le passage de la zone extrême 29 d'une mèche 9 respective et, en ce qui concerne l'une des zones 15 extrêmes, celui de l'extrémité libre 57 du cordon 58, à l'intérieur du compartiment 27, en constituant toutefois avec la paroi 26 une chicane imposant à cette zone extrême 29 et à cette extrémité libre 57 une compression et des flexions contrariées assurant leur immobilisation à l'intérieur de l'alvéole 20 dès lors que le couvercle 2 est fixé sur l'embase 1.This rim 69, symmetrical with respect to the plane 32, has perpendicularly to the latter longitudinal dimensions slightly smaller than those of the compartment 27, so as to penetrate into the latter. Perpendicular to the lower face 61 of the plate 59, it has dimensions smaller than those of the compartment 27 perpendicular to the face 16, so that it allows the passage of the end zone 29 of a respective wick 9 and, in as regards one of the end zones 15, that of the free end 57 of the cord 58, inside the compartment 27, however constituting with the wall 26 a baffle imposing on this end zone 29 and on this free end 57 a contraction and contractions bending ensuring their immobilization inside the cell 20 when the cover 2 is fixed on the base 1.

Le dimensionnement convenable, à cet effet, du compartiment 27, de l'alvéole 68, de la paroi 26 et du rebord 69 relève des aptitudes normales d'un Homme du métier.The suitable dimensioning, for this purpose, of the compartment 27, of the cell 68, of the wall 26 and of the flange 69 is within the normal abilities of a person skilled in the art.

Pour assurer la fixation de chaque couvercle 2 sur l'embase 1 dans la position déterminée définie précédemment, peuvent être prévus divers moyens de fixation dont on a illustré un mode de réalisation particulièrement simple.To secure each cover 2 to the base 1 in the determined position defined above, various fixing means can be provided, a particularly simple embodiment of which has been illustrated.

Selon ce mode de réalisation, la plaque 59 porte de façon solidaire, dans sa zone de chant 64, respectivement à proximité immédiate de chaque zone de chant 62, deux pattes 70 mutuellement symétriques par rapport au plan 32 et présentant, lorsqu'elles sont vues en coupe par un plan transversal, la forme d'une équerre présentant une première branche en saillie sous la face inférieure 61 de la plaque 59 et perpendiculaire à cette face 61, à laquelle elle se raccorde, et une deuxième branche parallèle à la face 61 à laquelle elle est raccordée par la première branche et formant une saillie transversale par rapport au chant 64.According to this embodiment, the plate 59 carries integrally, in its edge area 64, respectively in the immediate vicinity of each edge area 62, two legs 70 mutually symmetrical with respect to the plane 32 and having, when viewed in section through a transverse plane, the shape of a square having a first branch projecting under the lower face 61 of the plate 59 and perpendicular to this face 61, to which it is connected, and a second branch parallel to the face 61 to which it is connected by the first branch and forming a transverse projection relative to the edge 64.

Pour recevoir les deux pattes 70, chaque zone 15 de l'embase 1 présente, respectivement de part et d'autre du compartiment 27, deux trous 71 traversant l'embase 1 de sa face supérieure 16 à sa face inférieure 17, ces deux trous 71 étant mutuellement symétriques par rapport au plan 32 respectif et disposés par rapport à ce dernier de façon identique aux pattes 70.To receive the two legs 70, each zone 15 of the base 1 has, respectively on either side of the compartment 27, two holes 71 passing through the base 1 from its upper face 16 to its lower face 17, these two holes 71 being mutually symmetrical with respect to the respective plane 32 and arranged with respect to the latter in an identical manner to the legs 70.

Les pattes 70 et les trous 71 sont dimensionnés, de façon aisément déterminable par un Homme du métier, de telle sorte que l'on puisse introduire les pattes 70 par leur deuxième branche dans les trous 71 en plaçant la plaque 59 perpendiculairement à l'embase 1, puis rabattre la plaque 2 en la faisant pivoter par les pattes 70 dans les trous 71 jusqu'à amener sa face inférieure 61 en contact à plat avec la face supérieure 16 de l'embase 1, les deuxièmes branches des pattes 70 venant alors se loger sous la face inférieure 17 de l'embase 1 pour assurer la retenue du couvercle 2 à proximité immédiate de la zone de chant 64.The legs 70 and the holes 71 are dimensioned, in a manner easily determinable by a person skilled in the art, so that the legs 70 can be introduced by their second branch into the holes 71 by placing the plate 59 perpendicular to the base. 1, then fold the plate 2 by rotating it by the legs 70 in the holes 71 until bringing its lower face 61 in flat contact with the upper face 16 of the base 1, the second branches of the legs 70 then coming be housed under the underside 17 of the base 1 to retain the cover 2 in the immediate vicinity of the edge zone 64.

Par ailleurs, le long de la zone de chant 65 sont aménagés deux crochets 71 également mutuellement symétriques par rapport au plan 32 et placés en saillie sous la face inférieure 61 de la plaque 59.Furthermore, along the edge zone 65, two hooks 71 are also provided which are also mutually symmetrical with respect to the plane 32 and projecting under the lower face 61 of the plate 59.

Ces deux crochets 71 sont positionnés, de façon aisément déterminable par un Homme du métier, de telle sorte que lors du rabattement précité, ils viennent s'encliqueter élastiquement sur le chant 18 de l'embase 1, dans une zone longitudinale de ce chant 18 transversalement opposée à la zone de celui-ci correspondant aux bords 31 des compartiments 27 des alvéoles 20.These two hooks 71 are positioned, easily determinable by a skilled person, so that during the aforementioned folding, they snap elastically on the edge 18 of the base 1, in a longitudinal area of this edge 18 transversely opposite the zone thereof corresponding to the edges 31 of the compartments 27 of the cells 20.

Un Homme du métier comprendra aisément comment s'effectue le montage d'un dispositif de tir de feux d'artifice lorsqu'on utilise le dispositif de grappage selon l'invention.A person skilled in the art will easily understand how the mounting of a fireworks firing device is carried out when the clustering device according to the invention is used.

Ce montage peut s'effectuer alors que l'embase 1 est déjà fixée sur le bâti 7 de la batterie 4 de mortiers, dont les tubes 5 contiennent les bombes 8, ou avant montage de l'embase 1 sur le bâti 7 et introduction des bombes 8 dans les tubes 5.This assembly can be carried out while the base 1 is already fixed on the frame 7 of the mortar battery 4, the tubes 5 of which contain the bombs 8, or before mounting the base 1 on the frame 7 and introduction of the bombs 8 in the tubes 5.

Les couvercles 2 étant supposés initialement disjoints de l'embase 1, on place dans le compartiment 28 d'un premier alvéole 20 I'extrémité libre d'une mèche 9, correspondant à la bombe 8 destinée à être associée à cet alvéole 20, en prenant soin de faire chevaucher par la zone 29 de cette mèche 9 les bords 30 et 31. Si l'alvéole 20 ainsi traité correspondant à l'une des zones extrêmes 15 et est destiné à recevoir en outre l'extrémité libre 57 du cordon inflammateur 58, on dispose l'extrémité libre 57 identiquement à l'extrémité libre 10.The covers 2 being assumed to be initially separated from the base 1, the compartment 28 of a first cell 20 is placed in the free end of a wick 9, corresponding to the bomb 8 intended to be associated with this cell 20, in taking care to overlap by the region 29 of this wick 9 the edges 30 and 31. If the cell 20 thus treated corresponding to one of the extreme zones 15 and is intended to receive in addition the free end 57 of the inflammatory cord 58, the free end 57 is arranged identically to the free end 10.

Ensuite, selon qu'il s'agit d'une zone 15 intermédiaire ou d'une zone 15 extrême, on place dans chacun des canaux 33 débouchant dans le compartiment 28 considéré, ou dans le canal 33 unique débouchant dans cet alvéole 28, un retard pyrotechnique 3 convenablement choisi en prenant soin de placer le tronçon longitudinalement central 49 de sa face périphérique extérieure dans le trou constituant le tronçon central 35 du canal 33.Then, depending on whether it is an intermediate zone or an extreme zone 15, in each of the channels 33 opening into the compartment 28 in question, or in the single channel 33 opening into this cell 28, a pyrotechnic delay 3 suitably chosen, taking care to place the longitudinally central section 49 of its outer peripheral face in the hole constituting the central section 35 of the channel 33.

Alors, on présente le couvercle 2 correspondant en orientant sa plaque 59 perpendiculairement à l'embase 1 de façon à introduire dans les trous 71 les deux pattes 70 puis on rabat le couvercle 2 sur l'embase 1 comme on l'a décrit plus haut, ce qui provoque automatiquement l'encliquetage des crochets 71 sur le chant 18 de l'embase.Then, the corresponding cover 2 is presented by orienting its plate 59 perpendicularly to the base 1 so as to introduce the two tabs 70 into the holes 71, then the cover 2 is folded down on the base 1 as described above. , which automatically causes the hooks 71 to click into place on the edge 18 of the base.

Lors de ce mouvement, la mèche 9 et, le cas échéant, le cordon inflammateur 58 sont emprisonnés dans l'alvéole 20 et l'extrémité libre 10 de la mèche 9, ainsi que le cas échéant l'extrémité libre 57 du cordon inflammateur 58, se placent directement ou pratiquement directement en regard du cone de restitution de feu 56 du ou de chaque retard 3 associé.During this movement, the wick 9 and, if necessary, the igniter cord 58 are trapped in the cell 20 and the free end 10 of the wick 9, as well as if necessary the free end 57 of the igniter cord 58 , are placed directly or practically directly opposite the fire restoring cone 56 of the or each associated delay 3.

Lors du tir, initié au moyen du cordon inflammateur 58, on allume simultanément la mèche 59 correspondant au même alvéole 20 que ce cordon 58 et la composition pyrotechnique 55 du retard 3 débouchant dans cet alvéole. La bombe 8 correspondante est tirée et, après un délai fonction du retard pyrotechnique 3, celui-ci enflamme simultanément la mèche 9 de la bombe 8 située dans le tube 5 immédiatement voisin et la composition pyrotechnique 55 du retard 3 longitudinalement suivant. Le phénomène se répète jusqu'à la dernière zone extrême 15 où seule une mèche 9 est allumée, la face 46 précitée interdisant à ce niveau la sortie du feu hors de l'ensemble fermé défini par les alvéoles 20 et 68 ainsi que par les faces périphériques intérieures 54 des corps 47, de même qu'au niveau de la zone extrême 15 recevant le cordon inflammateur 58.When firing, initiated by the igniter cord 58, the wick 59 corresponding to the same cell 20 is ignited simultaneously as this cord 58 and the pyrotechnic composition 55 of the delay 3 opening into this cell. The corresponding bomb 8 is fired and, after a delay depending on the pyrotechnic delay 3, it simultaneously ignites the wick 9 of the bomb 8 located in the immediately adjacent tube 5 and the pyrotechnic composition 55 of the delay 3 longitudinally following. The phenomenon is repeated until the last extreme zone 15 where only a wick 9 is lit, the aforementioned face 46 preventing at this level the exit of the fire outside the closed assembly defined by the cells 20 and 68 as well as by the faces internal peripherals 54 of the bodies 47, as well as at the level of the extreme zone 15 receiving the inflammatory cord 58.

Afin d'assurer la fiabilité de fonctionnement du dispositif, il est préférable d'éviter que le feu ne puisse se transmettre directement d'un alvéole 20 à l'autre, sans passer par l'intermédiaire de la composition pyrotechnique 55 du retard 3 interposé entre ces alvéoles.In order to ensure the operating reliability of the device, it is preferable to avoid that the fire cannot be transmitted directly from one cell 20 to the other, without passing through the intermediary of the pyrotechnic composition 55 of the delay 3 interposed between these cells.

A cet effet, on a prévu dans l'exemple illustré, entre deux zones 15 consécutives respectivement, un relief déflecteur sous forme d'une nervure transversale 72 en saillie sur la face supérieure 16 de l'embase 1, sur la totalité de la dimension transversale de celle-ci, c'est-à-dire de chacune des zones longitudinales de chant jusqu'au trou définissant le tronçon central 35 du canal 33 reliant les alvéoles 20 des deux zones 15 considérées, cette nervure 72 étant en outre interrompue au niveau du trou 19 associé pour permettre le passage de la tête du clou 11 respectivement correspondant. Au niveau de ce trou et au niveau du trou définissant le tronçon central 35 du canal 33, la continuité du barrage s'opposant au passage direct du feu est assurée respectivement par la tête du clou 11 et par le corps 47 du retard 3.For this purpose, in the example illustrated, provision has been made, between two consecutive zones 15 respectively, for a deflector relief in the form of a transverse rib 72 projecting from the upper face 16 of the base 1, over the entire dimension. transverse thereof, that is to say from each of the longitudinal edge zones to the hole defining the central section 35 of the channel 33 connecting the cells 20 of the two zones 15 considered, this rib 72 being further interrupted at level of the associated hole 19 to allow the passage of the head of the corresponding nail 11 respectively. At the level of this hole and at the level of the hole defining the central section 35 of the channel 33, the continuity of the barrier opposing the direct passage of the light is ensured respectively by the head of the nail 11 and by the body 47 of the delay 3.

Naturellement, d'autres moyens pourraient être prévus à cet effet sans que l'on sorte pour autant du cadre de la présente invention.Naturally, other means could be provided for this purpose without departing from the scope of the present invention.

De façon générale, celle-ci est susceptible de nombreuses variantes sans que l'on sorte pour autant de son cadre.In general, it is susceptible of numerous variants without departing from its framework.

Ces variantes peuvent porter non seulement sur le nombre d'alvéoles 20 de l'embase 1, naturellement lié à celui des tubes 5 de la batterie 4, mais également sur la conception pratique de l'embase 1, des retards pyrotechniques 3 et des couvercles 2.These variants may relate not only to the number of cells 20 of the base 1, naturally linked to that of the tubes 5 of the battery 4, but also to the practical design of the base 1, pyrotechnic delays 3 and covers 2.

Claims (18)

Dispositif de grappage de bombes d'artifice (8) dont chacune présente une mèche (9), comportant une embase (1) en forme de barrette propre d'une part à être fixée le long d'une batterie (4) de mortiers (5) dont chacun est destiné à recevoir une bombe d'artifice respective (8) et d'autre part à recevoir de façon solidaire une extrémité libre (10) de chaque mèche (9), des retards pyrotechniques (3) raccordant les extrémités libres (10) de mèche (9) deux à deux et une extrémité libre (57) d'un cordon inflammateur (58) de mise à feu des bombes (8) par l'intermédiaire des retards (3) et des mèches (9),
   caractérisé en ce que l'embase (1) comporte une pluralité d'alvéoles (20) transversaux de réception d'une extrémité libre (10) respective de mèche (9), répartis longitudinalement à raison d'un alvéole (20) par extrémité libre (10) de mèche (9) et débouchant dans une même face longitudinale (16) de l'embase (1), des canaux longitudinaux (33) de réception d'un retard pyrotechnique respectif (3) raccordant les alvéoles (20) deux à deux et débouchant dans ladite face (16), et des moyens (71, 18) de fixation de moyens formant couvercle (2) sur ladite face( 16), en ce que sont prévus par ailleurs des moyens formant couvercle (2), comportant des moyens (70, 74) de fixation apte à coopérer avec lesdits moyens de fixation (71, 18) de l'embase (1) pour assurer une fixation des moyens formant couvercle (2) sur ladite face (16) dans une position dans laquelle ils définissent avec les alvéoles (20) et les canaux (33) un ensemble fermé en dégageant toutefois un passage respectif pour les mèches (9) et le cordon inflammateur (58), et en ce que les alvéoles (20) et les canaux (33) et/ou les moyens (2) formant couvercle sont conformés de telle sorte que, lorsque le couvercle (2) est fixé sur ladite face (16), il emprisonne de façon solidaire une extrémité libre (10) de mèche (9) dans chaque alvéole (20), un retard pyrotechnique (3) dans chaque canal de réception (33) et une extrémité libre (57) de cordon inflammateur (58) dans l'un des alvéoles (20), dans une relation de continuité pyrotechnique.Device for clustering fireworks bombs (8) each of which has a wick (9), comprising a base (1) in the form of a bar suitable for being attached along a battery (4) of mortars ( 5) each of which is intended to receive a respective bomb of fireworks (8) and on the other hand to receive integrally a free end (10) of each wick (9), pyrotechnic delays (3) connecting the free ends (10) wick (9) two by two and a free end (57) of an igniter cord (58) for firing bombs (8) via the delays (3) and wicks (9) ,
characterized in that the base (1) comprises a plurality of transverse cells (20) for receiving a respective free end (10) of wick (9), distributed longitudinally at the rate of one cell (20) per end free (10) of wick (9) and opening into the same longitudinal face (16) of the base (1), longitudinal channels (33) for receiving a respective pyrotechnic delay (3) connecting the cells (20) two by two and opening into said face (16), and means (71, 18) for fixing cover means (2) on said face (16), in that cover means (2) are also provided. , comprising fixing means (70, 74) able to cooperate with said fixing means (71, 18) of the base (1) for fixing the cover means (2) on said face (16) in a position in which they define with the alveoli (20) and the channels (33) a closed assembly, however releasing a passage res pectif for the wicks (9) and the igniter cord (58), and in that the cells (20) and the channels (33) and / or the means (2) forming a cover are shaped so that when the cover (2) is fixed on said face (16), it traps a free end (10) of wick (9) in each cell (20), a pyrotechnic delay (3) in each receiving channel (33) and a free end (57) of igniter cord (58) in one of the cells (20), in a relationship of pyrotechnic continuity. Dispositif selon la revendication 1, caractérisé en ce que les alvéoles (20) sont identiques.Device according to claim 1, characterized in that the cells (20) are identical. Dispositif selon l'une quelconque des revendications 1 et 2, caractérisé en ce que les canaux de réception (33) sont identiques.Device according to either of Claims 1 and 2, characterized in that the reception channels (33) are identical. Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les moyens formant couvercle (2) comportent un couvercle (2) par alévole (20).Device according to any one of claims 1 to 3, characterized in that the cover means (2) comprise a cover (2) for a catch (20). Dispositif selon la revendication 4, caractérisé en ce que les couvercles (2) sont mutuellement identiques.Device according to claim 4, characterized in that the covers (2) are mutually identical. Dispositif selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les moyens de fixation (71, 18, 70, 74) sont réversibles.Device according to any one of claims 1 to 5, characterized in that the fixing means (71, 18, 70, 74) are reversible. Dispositif selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les moyens de fixation (71, 18, 70, 74) comportent des moyens d'encliquetage (71, 18, 70, 74).Device according to any one of claims 1 to 6, characterized in that the fixing means (71, 18, 70, 74) comprise latching means (71, 18, 70, 74). Dispositif selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les canaux (33) de réception et/ou les moyens formant couvercle (2) comportent des épaulements (40, 50)transversaux mutuellement opposés, de butée longitudinale pour les retards pyrotechniques (3).Device according to any one of Claims 1 to 7, characterized in that the receiving channels (33) and / or the cover means (2) comprise mutually opposite transverse shoulders (40, 50), of longitudinal stop for the pyrotechnic delays (3). Dispositif selon l'une quelconque des revendications 1 à 8, caractérisé en ce que les alvéoles (20) et/ou les moyens formant couvercle (2) comportent des moyens (26, 69) formant chicane de rétention de l'extrémité libre (10) de mèche (9) respective.Device according to any one of Claims 1 to 8, characterized in that the cells (20) and / or the cover means (2) comprise means (26, 69) forming a baffle for retaining the free end (10 ) of wick (9) respectively. Dispositif selon l'une quelconque des revendications 1 à 9, caractérisé en ce que les canaux de réception (33) sont placés selon un même alignement longitudinal (37).Device according to any one of Claims 1 to 9, characterized in that the reception channels (33) are placed in the same longitudinal alignment (37). Dispositif selon l'une quelconque des revendications 1 à 10, caractérisé en ce que ladite face (16) et/ou les moyens formant couvercle (2) présentent des reliefs déflecteurs transversaux (72) entre les alvéoles (20), en dehors des canaux de réception (33).Device according to any one of Claims 1 to 10, characterized in that the said face (16) and / or the cover means (2) have transverse deflector reliefs (72) between the cells (20), outside the channels reception (33). Dispositif selon l'une quelconque des revendications 1 à 11, caractérisé en ce que l'embase (1) et les moyens formant couvercle (2) sont en matière synthétique.Device according to any one of claims 1 to 11, characterized in that the base (1) and the cover means (2) are made of synthetic material. Retard pyrotechnique destiné à être utilisé conjointement avec un dispositif selon l'une quelconque des revendications 1 à 12, caractérisé en ce qu'il comporte un corps tubulaire longitudinal (47) garni intérieurement d'une composition pyrotechnique à retard (55), ouvert à ses extrémités transversales (53) et présentant extérieurement une conformation d'immobilisation par l'embase (1) et les moyens formant couvercle (2).Pyrotechnic delay intended to be used in conjunction with a device according to any one of Claims 1 to 12, characterized in that it comprises a longitudinal tubular body (47) internally lined with a pyrotechnic delay composition (55), open to its transverse ends (53) and externally having an immobilization conformation by the base (1) and the means forming a cover (2). Retard pyrotechnique selon la revendication 13, caractérisé en ce que, pour coopérer avec les épaulements transversaux (40, 50) des canaux de réception (33) et/ou des moyens formant couvercle (2) d'un dispositif selon la revendication 8, le corps tubulaire (47) comporte des épaulements transversaux (50) mutuellement opposés.Pyrotechnic delay according to claim 13, characterized in that, in order to cooperate with the transverse shoulders (40, 50) of the receiving channels (33) and / or cover means (2) of a device according to claim 8, the tubular body (47) has mutually opposite transverse shoulders (50). Retard pyrotechnique selon l'une quelconque des revendications 13 et 14, caractérisé en ce que, au niveau de chaque extrémité du corps tubulaire (47), la composition pyrotechnique à retard (55) présente un cone de restitution (56).Pyrotechnic delay according to any one of claims 13 and 14, characterized in that, at each end of the tubular body (47), the delay pyrotechnic composition (55) has a return cone (56). Retard pyrotechnique selon l'une quelconque des revendications 13 à 15, caractérisé en ce que le corps tubulaire (47) est métallique.Pyrotechnic delay according to any one of claims 13 to 15, characterized in that the tubular body (47) is metallic. Dispositif de tir de feu d'artifice, comportant une batterie (4) de mortiers (5) mutuellement juxtaposés longitudinalement, caractérisé en ce qu'il comporte un dispositif de grappage (1, 2) selon l'une quelconque des revendications 1 à 12, dont l'embase (1) est fixée le long de la batterie (4) de mortiers (5).Fireworks fire device, comprising a battery (4) of mortars (5) mutually juxtaposed longitudinally, characterized in that it comprises a gripping device (1, 2) according to any one of claims 1 to 12 , whose base (1) is fixed along the battery (4) of mortars (5). Dispositif selon la revendication 17, caractérisé en ce qu'il comporte en outre des bombes d'artifice (8) dont chacune est logée dans un mortier respectif (5) et présente une mèche (9) dont une extrémité libre (10) est engagée dans un alvéole (20) respectif, un cordon inflammateur (58) dont une extrémité libre (57) est engagée dans un alvéole (20), et des retards pyrotechniques (3) selon l'une quelconque des revendications 13 à 16 dont chacun est logé dans un canal de réception (33) respectif, les moyens formant couvercle (2) étant fixés sur l'embase (1) par lesdits moyens de fixation (71, 18, 70, 74) et retenant sur l'embase (1) les extrémités libres (10, 57) des mèches (9) et du cordon inflammateur (58) et les retards pyrotechniques (3).Device according to claim 17, characterized in that it also comprises fireworks bombs (8) each of which is housed in a respective mortar (5) and has a drill bit (9) of which a free end (10) is engaged in a respective cell (20), an igniter cord (58) of which a free end (57) is engaged in a cell (20), and pyrotechnic delays (3) according to any one of claims 13 to 16 each of which is housed in a respective receiving channel (33), the cover means (2) being fixed on the base (1) by said fixing means (71, 18, 70, 74) and retaining on the base (1) the free ends (10, 57) of the wicks (9) and of the igniter cord (58) and the pyrotechnic delays (3).
EP19940401079 1993-05-14 1994-05-13 Firework having means to separate several succesively ignited charges from casings Expired - Lifetime EP0624773B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9305846A FR2705447B1 (en) 1993-05-14 1993-05-14 Device for clustering fireworks and pyrotechnic delay which can be used jointly in a device for firing fireworks.
FR9305846 1993-05-14

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EP0624773A1 true EP0624773A1 (en) 1994-11-17
EP0624773B1 EP0624773B1 (en) 2000-09-20

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DE (1) DE69425924T2 (en)
ES (1) ES2149851T3 (en)
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PT (1) PT624773E (en)

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ES2154099A1 (en) * 1997-05-30 2001-03-16 Garcia Gamon Fernando Distribution for connecting and igniting the wicks of fireworks
ES2904250A1 (en) * 2020-10-02 2022-04-04 Garcia Gamon Anton Fernando An ignition arrangement for multiple pyrotechnic items (Machine-translation by Google Translate, not legally binding)
CN114562916A (en) * 2022-02-18 2022-05-31 泉州湖南大学工业设计与机器智能创新研究院 Directional arrangement device of fireworks machine

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DE20310900U1 (en) 2003-07-15 2003-10-02 Voigt Andreas Arrangement for igniting and / or firing pyrotechnic articles and / or sets
DE102015122473A1 (en) * 2015-12-21 2017-06-22 Ringo Thieme Fireworks with fuse position

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Publication number Priority date Publication date Assignee Title
ES2154099A1 (en) * 1997-05-30 2001-03-16 Garcia Gamon Fernando Distribution for connecting and igniting the wicks of fireworks
ES2904250A1 (en) * 2020-10-02 2022-04-04 Garcia Gamon Anton Fernando An ignition arrangement for multiple pyrotechnic items (Machine-translation by Google Translate, not legally binding)
WO2022069784A1 (en) 2020-10-02 2022-04-07 Garcia Gamon Anton Fernando Ignition arrangement for multiple pyrotechnic articles
CN114562916A (en) * 2022-02-18 2022-05-31 泉州湖南大学工业设计与机器智能创新研究院 Directional arrangement device of fireworks machine
CN114562916B (en) * 2022-02-18 2024-01-12 泉州湖南大学工业设计与机器智能创新研究院 Directional arrangement device of firework machine

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FR2705447A1 (en) 1994-11-25
DE69425924T2 (en) 2001-02-22
EP0624773B1 (en) 2000-09-20
PT624773E (en) 2001-01-31
DE69425924D1 (en) 2000-10-26
ES2149851T3 (en) 2000-11-16
FR2705447B1 (en) 1995-08-11

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