METHOD FOR SEPARATION AND REASSEMBLY

Abstract

The method makes it possible to manufacture an assembly (A) comprising a layer (C) of metal filamentary elements (14) wound in a helix. The method comprises a step (100) of supplying a temporary assembly (22) comprising a layer (13) of M′>1 metal filamentary elements (14) and a temporary centre (16), and a step (110) of separating the temporary assembly (22) between a first split assembly (25), a second split assembly (27) and the temporary centre (16). The method comprises a step (140) of reassembling the first split assembly (25) with the second split assembly (27) so as to form the layer (C) of the assembly (A).

Claims

1.-13. (canceled)

14. A method of manufacturing a final assembly comprising at least one layer made up of N′>1 helically wound metal filamentary elements, the method comprising: a step of supplying a transitory assembly comprising at least one layer made up of M′>1 metal filamentary elements helically wound around a transitory core; and a step of separating the transitory assembly into at least: a first split assembly comprising at least one layer made up of M1′≥1 helically wound metal filamentary elements, the M1′ metal filamentary element originating from the layer made up of M′>1 metal filamentary elements of the transitory assembly, a second split assembly comprising at least one layer made up of M2′>1 helically wound metal filamentary elements, the M2′ metal filamentary elements originating from the layer made up of M′>1 metal filamentary elements of the transitory assembly, and the transitory core or one or more ensembles comprising the transitory core; and a step of reassembling at least the first split assembly with the second split assembly to form the layer made up of N′ helically wound metal filamentary elements.

15. The method according to claim 14, wherein the separation step and the reassembly step are performed such that M1′+M2′<M′.

16. The method according to claim 14, wherein the separation step comprises, upstream of the reassembly step: a step of separating the transitory assembly into: a precursor ensemble comprising at least one layer consisting of M1″>1 helically wound metal filamentary elements, the M1″ metal filamentary elements originating from the layer made up of M′>1 metal filamentary elements of the transitory assembly, the second split assembly, and the transitory core or one or more ensembles comprising the transitory core; and a step of separating the precursor ensemble into: a main ensemble comprising at least one layer made up of M3≥1 helically wound metal filamentary elements, the M3≥1 metal filamentary elements originating from the layer made up of the M1″>1 metal filamentary elements of the precursor ensemble, the main ensemble forming the first split assembly, and an additional ensemble comprising at least one layer made up of M3′≥1 helically wound metal filamentary elements, the M3′≥1 metal filamentary elements originating from the layer made up of the M1″>1 metal filamentary elements of the precursor ensemble.

17. The method according to claim 16, wherein the step of separating the transitory assembly into the precursor ensemble, the second split assembly, and the transitory core or one or more ensembles comprising the transitory core comprises: a step of separating the transitory assembly into: a split ensemble comprising at least one layer made up of M4′>1 metal filamentary elements helically wound around the transitory core, the M4′ metal filamentary elements originating from the layer made up of M′ metal filamentary elements of the transitory assembly, and the second split assembly; and a step of separating the split ensemble into: the precursor ensemble, and the transitory core or one or more ensembles comprising the transitory core.

18. The method according to claim 16, wherein the step of separating the transitory assembly into the precursor ensemble, the second split assembly and the transitory core or one or more ensembles comprising the transitory core comprises: a step of separating the transitory assembly into: a split ensemble comprising at least one layer made up of M4′>1 metal filamentary elements helically wound around the transitory core, the M4′ metal filamentary elements originating from the layer made up of M′>1 metal filamentary elements of the transitory assembly, and the precursor ensemble; and a step of separating the split ensemble into: the second split assembly, and the transitory core or one or more ensembles comprising the transitory core.

19. The method according to claim 14, wherein the separation step comprises, upstream of the reassembly step: a step of separating the transitory assembly into: a split ensemble comprising at least one layer made up of M4′>1 metal filamentary elements helically wound around the transitory core, the M4′ metal filamentary elements originating from the layer made up of M′ metal filamentary elements of the transitory assembly, and the second split assembly; and a step of separating the split ensemble into: the first split assembly, and the transitory core or one or more ensembles comprising the transitory core.

20. The method according to claim 14, wherein the separation step comprises, upstream of the reassembly step: a step of splitting the transitory assembly into: the first split assembly, the second split assembly, the transitory core or one or more ensembles comprising the transitory core, and a split ensemble comprising at least one layer made up of M4′≥1 helically wound metal filamentary elements, the M4′ metal filamentary elements originating from the layer made up of M′ metal filamentary elements of the transitory assembly.

21. The method according to claim 14, wherein the separation step and the reassembly step are performed such that M1′+M2′=M′.

22. The method according to claim 21, wherein the separation step comprises, upstream of the reassembly step: a step of separating the transitory assembly into: a split ensemble comprising at least one layer made up of M4′≥1 metal filamentary elements helically wound around the transitory core, the M4′≥1 metal filamentary elements originating from the layer made up of the M′>1 metal filamentary elements of the transitory assembly, and the second split assembly; and a step of separating the split ensemble into: the first split assembly, and the transitory core.

23. The method according to claim 21, wherein the separation step comprises: a step of separating the transitory assembly into: a split ensemble comprising at least one layer made up of M4′>1 metal filamentary elements helically wound around the transitory core, the M4′>1 metal filamentary elements originating from the layer made up of the M′>1 metal filamentary elements of the transitory assembly, and the first split assembly; and a step of separating the split ensemble into: the second split assembly, and the transitory core.

24. The method according to claim 21, wherein the separation step comprises, upstream of the reassembly step: a step of splitting of the transitory assembly into the first split assembly, the second split assembly and the transitory core.

25. The method according to claim 14, wherein M′ ranges from 4 to 18.

26. An installation for manufacturing a final assembly comprising at least one layer made up of N′>1 helically wound metal filamentary elements, the installation comprising: means for supplying a transitory assembly comprising at least one layer made up of M′>1 metal filamentary elements helically wound around a transitory core; means for separating the transitory assembly into at least: a first split assembly comprising at least one layer made up of M1′≥1 helically wound metal filamentary elements, the M1′ metal filamentary elements originating from the layer made up of M′>1 metal filamentary elements of the transitory assembly, a second split assembly comprising at least one layer made up of M2′>1 helically wound metal filamentary elements, the M2′ metal filamentary elements originating from the layer made up of M′>1 metal filamentary elements of the transitory assembly, and the transitory core or one or more ensembles comprising the transitory core; and means for reassembling at least the first split assembly with the second split assembly to form the layer made up of N′ helically wound metal filamentary elements.

Description

[0513] The invention will be understood better on reading the following description, which is given purely by way of non-limiting example and with reference to the drawings, in which:

[0514] FIG. 1 is a diagram of an installation according to a first embodiment of the invention and making it possible to implement a method according to a first embodiment of the invention and to manufacture the cord of FIG. 11;

[0515] FIG. 2 is a schematic depiction of the installation and of the method which are illustrated in FIG. 1;

[0516] FIGS. 3 and 4 are diagrams of splitting and reassembling means of the installation of FIG. 1;

[0517] FIG. 5 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of a transitory assembly of the method illustrated in FIGS. 1 and 2;

[0518] FIG. 6 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of a precursor assembly originating from the transitory assembly of FIG. 5;

[0519] FIG. 7 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of a split assembly originating from the transitory assembly of FIG. 5;

[0520] FIG. 8 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of a second split assembly originating from the split assembly of FIG. 7;

[0521] FIG. 9 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of a main ensemble originating from the precursor ensemble of FIG. 6 and forming a first split assembly;

[0522] FIG. 10 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of an additional ensemble originating from the precursor ensemble of FIG. 6;

[0523] FIG. 11 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of a final assembly originating from the reassembly of the first and second split assemblies of FIGS. 8 and 9;

[0524] FIGS. 12 and 13 are representations similar to those of FIGS. 1 and 2 of an installation and of a method according to a second embodiment making it possible to manufacture the cord of FIG. 18;

[0525] FIG. 14 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of a transitory assembly of the method illustrated in FIGS. 12 and 13;

[0526] FIG. 15 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of a first split assembly originating from the transitory assembly of FIG. 14;

[0527] FIG. 16 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of a split assembly originating from the transitory assembly of FIG. 14;

[0528] FIG. 17 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of a second split assembly originating from the split assembly of FIG. 16;

[0529] FIG. 18 is a view in section perpendicular to the axis of the assembly (assumed to be rectilinear and at rest) of a final assembly originating from the reassembly of the first and second split assemblies of FIGS. 15 and 17; and

[0530] FIGS. 19 to 28 are diagrammatic representations of an installation and of a manufacturing method similar to those of FIGS. 2 and 13 of other embodiments of the invention.

INSTALLATION AND METHOD ACCORDING TO A FIRST EMBODIMENT OF THE INVENTION

[0531] FIG. 1 shows an installation for manufacturing a final assembly A comprising at least one layer C of N′>1 metal filamentary elements 14 wound in a helix. In this case, the final assembly A consists of the layer C of N′=6 metal filamentary elements 14 wound in a helix and is represented in FIG. 11. Thus, the final assembly A consists of the single layer C, in other words the final assembly A does not include any other metal filamentary element than those of the layer C. The final assembly A has a main axis Ax extending substantially parallel to the direction in which the final assembly A extends along its greatest length. Each metal filamentary element 14 of the layer C describes, when the final assembly A extends in a substantially rectilinear direction, a helix-shaped path around the main axis Ax substantially parallel to the substantially rectilinear direction, so that, in a section plane substantially perpendicular to the main axis Ax, the distance between the centre of each metal filamentary element 14 of the layer C and the main axis Ax is substantially constant and equal for all the metal filamentary elements 14 of the layer C. This constant distance between the centre of each metal filamentary element 14 of the layer C and the main axis Ax is equal to half the diameter of the helix.

[0532] The installation is denoted by the overall reference 10. The installation 10 comprises first of all means 11 for supplying a transitory assembly 22 comprising at least one, and in this case consisting of one, layer 13 made up of M′>1 metal filamentary elements 14 helically wound around a transitory core 16. The transitory assembly 22 shown in FIG. 5 comprises the layer 13 made up of the M′ metal filamentary elements 14 and the transitory core 16, the M′ metal filamentary elements 14 being helically wound around the transitory core 16. In this case, the transitory assembly 22 consists of the layer 13 made up of the M′=7 metal filamentary elements 14 and of the transitory core 16, the M′ metal filamentary elements 14 being helically wound around the transitory core 16. Each metal filamentary element 14 comprises, here consists of, a single metallic elementary monofilament of circular cross section, in this instance made of carbon steel, having a diameter d ranging from 0.05 mm to 0.50 mm, preferably from 0.10 mm to 0.48 mm, and more preferably from 0.15 mm to 0.45 mm, and, in this instance, with d=0.32 mm. The transitory core here is a textile filamentary element, and more particularly here is a multifilament textile strand made of polyester with a count of 334 tex and a diameter equal to 0.60 mm.

[0533] The supply means 11 comprise means 12 for feeding in the M′ metal filamentary elements 14 and the transitory core 16. The supply means 11 also comprise means 18 for assembling, by twisting, the M′ metal filamentary elements 14 together in the layer 13 of M′ metal filamentary elements 14 around the transitory core 16 so as to form the transitory assembly 22. Furthermore, the supply means 11 comprise means 20 for balancing the transitory assembly 22. On exiting the means 20, each metal filamentary element 14 of the transitory assembly 22 is, in this case, assembled at a transitory pitch equal to 5 mm. The transitory helix diameter of each metal filamentary element 14 of the transitory assembly 22 is, in this case, substantially equal to 0.92 mm.

[0534] Downstream of the supply means 11, considering the direction of travel of the metal filamentary elements, the installation 10 comprises means 24 for separating the transitory assembly 22 into a first split assembly 25, a second split assembly 27 and the transitory core 16 or one or more ensembles comprising the transitory core 16, in this case the transitory core 16.

[0535] The first split assembly 25 shown in FIG. 9 comprises at least one layer 26, here consists of the layer 26, consisting of M1′≥1 metal filamentary element(s) 14 wound in a helix. In this case, M1′=2. The M1′ metal filamentary elements originate from the layer 13 of the transitory assembly 22.

[0536] The second split assembly 27 shown in FIG. 8 comprises at least one layer 28, here consists of the layer 28, consisting of M2′>1 metal filamentary elements 14 wound in a helix. In this case, M2′=4. The M2′ metal filamentary elements originate from the layer 13 of the transitory assembly 22.

[0537] Downstream of the supply means 11, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprise means 29 for separating the transitory assembly 22 into a precursor ensemble 31, the second split assembly 27 and finally the transitory core 16. The precursor ensemble 31 is illustrated in FIG. 6 and comprises at least one, here consists of one, layer 31′ made up of M1″>1 metal filamentary elements wound in a helix, the M 1″ metal filamentary elements 14 originating from the layer 13 of the transitory assembly 22. In this case, M1″=3.

[0538] The means 29 for separating the transitory assembly 22 into the precursor ensemble 31, the second split assembly 27 and the transitory core 22 comprise means 32 for separating the transitory assembly 22 into the precursor ensemble 31 and a split ensemble 33 comprising at least one layer 33′ constituted by M4′>1 metal filamentary elements 14 helically wound around the transitory core 16. The M4′ metal filamentary elements 14 originate from the layer 13 of the transitory assembly 22. Here, the separation means 32 comprise means 32′ for splitting the transitory assembly 22 into the precursor ensemble 31 and the split ensemble 33. In this case, M4′=4.

[0539] Thus, the split ensemble 33 comprises the layer 33′ and the transitory core 16, the M4′ metal elements being helically wound around the transitory core 16. The split ensemble 33 is illustrated in FIG. 7 and consists of the layer 33′ made up of the M4′ metal filamentary elements wound in a helix and of the transitory core 16, the M4′ metal elements being helically wound around the transitory core 16.

[0540] Downstream of the separation means 29, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprise means 34 for separating the split ensemble 33 into the second split assembly 27 and the transitory core 16. Here, the separation means 34 comprise means 34′ for splitting the split ensemble 33 into the second split assembly 27 and the transitory core 16.

[0541] Downstream of the supply means 11, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 also comprise means 35 for separating the precursor ensemble 31 into a main ensemble P forming the first split assembly 25 and an additional ensemble K. The means 35 for separating the precursor ensemble 31 into the main P and additional K ensembles comprise means 36 for splitting the precursor ensemble 31 into the main ensemble P and the additional ensemble K.

[0542] The main ensemble P comprises a layer P′ made up of M3≥1 metal filamentary element(s) wound in a helix, the M3≥1 metal filamentary element(s) originating from the layer 31′ made up of the M1″ metal filamentary elements of the precursor ensemble 31. Here, the main ensemble P, illustrated in FIG. 9, consists of the layer P′ made up of M3=2 metal filamentary elements 14 wound in a helix.

[0543] The additional ensemble K comprises a layer K′ made up of M3′≥1 metal filamentary element(s) wound in a helix, the M3′≥1 metal filamentary element(s) originating from the layer 31′ made up of the M1″ metal filamentary elements of the precursor ensemble 31. Here, the additional ensemble K, illustrated in FIG. 10, consists of the layer K′ made up of M3=1 metal filamentary element 14 wound in a helix and forms the first split assembly 25.

[0544] In this case, M3=M1′ et M3+M3′=M1″.

[0545] Downstream of the separation means 24, 29, 34 and 35, the installation 10 comprises means 37 for reassembling the first split assembly 25 with the second split assembly 27 to form the layer C consisting of N′ metal filamentary elements 14 wound in a helix. In this first embodiment, the reassembly means 37 are means for reassembling the main ensemble P forming the first split assembly 25 with the second split assembly 27 to form the layer C. In this case, owing to the elastic return of each metal filamentary element 14 in response to the twisting step, the pitch of each metal filamentary element 14 of the transitory assembly 22 changes from the transitory pitch equal to 5 mm to the pitch p here equal to 7.8 mm. A person skilled in the art will know how to determine which transitory pitch to apply in order to obtain the desired pitch p.

[0546] The helix diameter ϕ of each metal filamentary element 14 in the final assembly is here substantially greater than the transitory helix diameter of each filamentary element 14 in the transitory assembly 22, because of the elastic return. The helix diameter ϕ of each metal filamentary element 14 in the final assembly is all the more greater than the transitory helix diameter of each filamentary element 14 in the transitory assembly 22 as the twist rate increases. A person skilled in the art will know how to determine the transitory helix diameter to apply in order to obtain the desired helix diameter ϕ, depending on the degree of twist and on the nature of the transitory core.

[0547] The supply means 11, the separation means 24 and the reassembly means 37 are arranged so that all the N′ metal filamentary elements 14 have the same diameter d=0.32 mm, are helically wound at the same pitch p=7.8 mm and have the same helix diameter ϕ=0.95 mm.

[0548] In FIG. 1, downstream of the reassembly means 37 considering the direction of travel of the metal filamentary elements, the installation 10 comprises means 38, 38′ for maintaining the rotation respectively of the final assembly A and of the additional ensemble K around their direction of travel.

[0549] Downstream of the rotation maintenance means 38, 38′ considering the direction of travel of the metal filamentary elements 14, the installation 10 comprises means 39, 39′ for respectively balancing the final assembly A and the additional ensemble K.

[0550] Downstream of the balancing means 39, 39′ considering the direction of travel of the metal filamentary elements 14, the installation 10 comprises means 40, 40′ for respectively storing the final assembly A and the additional ensemble K.

[0551] The installation 10 also comprises means G of guiding, D of paying out, and T of applying tension to the filamentary elements, ensembles and assemblies, as are conventionally used by those skilled in the art, for example pulleys and capstans.

[0552] The supply means 12 here comprise seven spools 41 for storing each filamentary element 14 as well as a spool 41 for storing the transitory core 16. In FIG. 1, only two of the seven spools 41 are shown for reasons of clarity of the figure.

[0553] The assembly means 18 comprise a distributor 42 and an assembly guide 44. The assembly means 18 comprise means 46 for twisting the M′ filamentary elements 14 and the transitory core 16. The twisting means 46 comprise a twisting device 48, also more commonly known to those skilled in the art as a “twister”, for example a four-pulley twister. Downstream of these twisting means 46, the twist-balancing means 20 comprise a twister 50, for example a four-pulley twister. Finally, downstream of the twister 48, the assembly means 18 comprise a bow 52 and a pod 53 bearing the final balancing means 39 and the storage means 40. The bow 52 and the pod 53 are mounted to be able to rotate so as to maintain the assembly pitch of the final assembly A. The installation 10 also comprises a bow 52′ and a pod 53′ for the additional ensemble K.

[0554] FIG. 3 depicts the splitting means 32′. The transitory assembly 22 progresses in an upstream direction of travel X. After passing through the splitting means 32′, the split ensemble 33 progresses in a downstream direction of travel X2 and the precursor ensemble 31 progresses in a downstream direction X1. The splitting means 32′ comprise guide means 57 allowing, on the one hand, the translation of the split 33 and precursor 31 ensemble respectively in the downstream directions X2, X1, and, on the other hand, the rotation of the split 33 and precursor 31 ensemble respectively around the downstream directions X2, X1. In this particular instance, the means 57 comprise an inclined rotary roller 60. The splitting means 34′ and 36 are similar to the splitting means 32′ described above. During the method, the precursor ensemble 31 comes into contact with the roller 60 downstream of the point of splitting into the split 33 and precursor 31 ensembles.

[0555] FIG. 4 depicts the reassembly means 37. The first split assembly 25 progresses in an upstream direction of travel Y1. The second split assembly 27 progresses in an upstream direction of travel Y2. The final assembly A progresses in a downstream direction of travel Y. The reassembly means 37 comprise guide means 59 allowing, on the one hand, the translation of the first and second split assemblies 25, 27 respectively in the downstream directions Y1, Y2, and, on the other hand, the rotation of the first and second split assemblies 25, 27 respectively around the downstream directions Y1, Y2. In this particular instance, the means 59 comprise an inclined rotary roller 61. During the method, the first split assembly 25 comes into contact with the roller 61 upstream of the point of reassembly of the first and second split assemblies 25, 27.

[0556] The means 38, 38′ for maintaining the rotation comprise twisters 62, 62′, for example twisters with four pulleys making it possible to maintain the rotation of the final assembly A respectively around the downstream direction. The final balancing means 39, 39′ also comprise twisters 63, 63′, for example four-pulley twisters. The storage means 40, 40′ here comprise spools 64, 64′ respectively for storing the final assembly A and the additional ensemble K.

[0557] In order to recycle the transitory core 16, the installation 10 comprises guide means G for guiding the transitory core 16 between, on the one hand, an exit 68 from the separation means 24, in this instance downstream of the splitting means 34 and, on the other hand, an entry 70 into the assembly means 18.

[0558] It will be noted that the installation 10 has no preforming means, particularly means for individually preforming the filamentary elements 14, arranged upstream of the assembly means 18.

[0559] The various means 24, 29, 32, 32′, 34, 34′, 35, 36, 37 as well as the various assemblies and ensembles 22, 25, 27, 31, 33, P, K are shown schematically in the FIG. 2 in which the arrows indicate the direction of travel of these assemblies and ensembles from downstream to upstream.

[0560] The method according to the first embodiment allowing implementation of the installation 10 described hereinabove will now be described. The method makes it possible to manufacture the final assembly A described above.

[0561] First of all, the filamentary elements 14 and the transitory core 16 are paid out from the feed means 12, in this instance the spools 41.

[0562] Next, the method comprises a step 100 of supplying the transitory assembly 22 comprising, on the one hand, a step of assembly by twisting the M′ metal filamentary elements 14 in a single layer of M′ metal filamentary elements 14 around the transitory core 16 and, on the other hand, a step of balancing the transitory assembly 22 carried out by means of the twister 50.

[0563] The method comprises a step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 or one or more ensembles comprising the transitory core 16, in this case the transitory core 16.

[0564] Downstream of the supply means 11, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 120 of separating the transitory assembly 22 into the precursor ensemble 31, the second split assembly 27 and finally the transitory core 16.

[0565] The step 120 of separating the transitory assembly 22 into the precursor ensemble 31, the second split assembly 27 and the transitory core comprises a step 122 of separating the transitory assembly 22 into the precursor ensemble 31 and the split ensemble 33. Here, the separation step 122 comprises a step 122′ of splitting of the transitory assembly 22 into the precursor ensemble 31 and the split ensemble 33.

[0566] Downstream of the separation step 122, the step 120 of separating the transitory assembly into the precursor ensemble 31 and the split ensemble 33 comprises a step 124 of separating the split ensemble 33 into the second split assembly 27 and the transitory core 16. In this case, the separation step 124 comprises a step 124′ of splitting the split ensemble 33 into the second split assembly 27 and the transitory core 16.

[0567] Downstream of the supply step 100, the step 110 of separating the transitory assembly into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 130 of separating the precursor ensemble 31 into the main ensemble P forming the first split assembly 25 and the additional ensemble K. The step 130 of separating the precursor ensemble 31 into the main P and additional K ensemble comprises a step 132 of splitting of the precursor ensemble 31 into the main ensemble P and the additional ensemble K.

[0568] The step 120 of separating the transitory assembly 22 into the precursor ensemble 31, the second split assembly 27 and the transitory core 16 takes place upstream of the step 130 of separating the precursor ensemble 31 into the main P and additional K ensembles. Similarly, the separation means 29 are arranged upstream of the separation means 35.

[0569] The step 122 of separating 122 the transitory assembly into the split ensemble 33 and the precursor ensemble 31 takes place upstream of the step 124 of separating the split ensemble 33 into the second split assembly 27 and the transitory core 16. Similarly, the separation means 32 are arranged upstream of the separation means 34.

[0570] Downstream of the separation steps 110, 120, 124 and 130, the method comprises a step 140 of reassembling the first split assembly 25 with the second split assembly 27 to form the layer C. In this first embodiment, the reassembly step 140 is a step of reassembling the main ensemble P forming the first split assembly 25 with the second split assembly 27 to form the layer C.

[0571] In this embodiment, the supply step 100, the separation step 110 and the reassembly step 140 are carried out so that all the N′ metal filamentary elements 14 have the same diameter d, are helically wound at the same pitch p and have the same helix diameter ϕ that are described above.

[0572] In the first embodiment allowing a partial reassembly of the M′ metal filamentary elements, the separation step 110 and the reassembly step 140 are carried out so that M1′+M2′<M′. Similarly, the separation means 24 and the reassembly means 37 are arranged so that M1+M2′<M′. In addition, M′>M1″+M2′, M1″=M3+M3′, M1′=M3, M′=M4′+M1″ and M4′=M2′.

[0573] Finally, it will be noted that M2′=4≤0.75×M′=5.25, and here M2′=4≤0.70×M′=4.9 with here M′=7, which allows easy separation of the transitory core.

[0574] In addition, the method comprises steps of maintaining the rotation of the final assembly A and of the assembly formed by the additional ensemble K around their respective directions of travel. These maintenance steps are carried out downstream of the step of separating the transitory assembly 22 by virtue of the means 38 and 38′.

[0575] A final balancing step is carried out by virtue of the means 39 and 39′.

[0576] Finally, the final assembly A and the additional ensemble K are stored in the storage spools 64, 64′.

[0577] As regards the transitory core 16, the method comprises a step of recycling the transitory core 16. During this recycling step, the transitory core 16 is recovered downstream of the separation step 110, in this case downstream of the separation step 124, and the transitory core 16 previously recovered is introduced upstream of the assembly step. This recycling step is continuous.

[0578] It will be noted that the method thus described does not have steps of individually preforming each of the metal filamentary elements 14.

INSTALLATION AND METHOD ACCORDING TO A SECOND EMBODIMENT OF THE INVENTION

[0579] An installation and a method according to the second embodiment of the invention will now be described with reference to FIGS. 12 to 18. Elements similar to those of the first embodiment are denoted by identical references.

[0580] Unlike the first embodiment, the separation step 110 and the reassembly step 140 are carried out so that M1′+M2′=M′. Similarly, the separation means 24 and the reassembly means 37 are arranged so that M1′+M2′=M′.

[0581] Unlike the first embodiment, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprise means 72 for separating the transitory assembly 22 into the first split assembly 25 and a split ensemble 33 comprising at least one layer 33′ consisting of M4′=3 metal filamentary elements 14 helically wound around the transitory core 16, the M4′ metal filamentary elements 14 originating from the layer 13 formed of the M′>1 metal filamentary elements 14 of the transitory assembly 22. The split ensemble 33 thus comprises the layer 33′ and the transitory core 16, the M4′ metal filamentary elements 14 being helically wound around the transitory core 16. In this case, the split ensemble 33 is made up of the layer 33′ and of the transitory core 16, the M4′ metal filamentary elements 14 being helically wound around the transitory core 16. In this case, the separation means 72 comprise means 72′ for splitting the transitory assembly 22 into the first split assembly 25 and the split ensemble 33.

[0582] Thus, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 121 of separating the transitory assembly 22 into the first split assembly 25 and the split ensemble 33. In this case, the separation step 121 comprises a step 121′ of splitting the transitory assembly 22 into the first split assembly 25 and the split ensemble 33.

[0583] Unlike the first embodiment, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprise means 74 for separating the split ensemble 33 into the second split assembly 27 and the transitory core 16. In this case, the separation means 74 comprise means 74′ for splitting the split ensemble 33 into the second split assembly 27 and the transitory core 16.

[0584] Thus, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 123 of separating the split ensemble 33 into the second split assembly 27 and the transitory core 16. In this case, the separation step 123 comprises a step 123′ of splitting the split ensemble 33 into the second split assembly 27 and the transitory core 16.

[0585] In this second embodiment, the separation means 72 are arranged upstream of the separation means 74. Similarly, the separation step 121 takes place upstream of the separation step 123.

[0586] It will also be noted that, unlike the first embodiment, M′=6, M′=M4′+M1′, M4′=M2′, N′=6, M1′=3, M2′=3 in the second embodiment.

[0587] The other means and steps can be deduced mutatis mutandis from those of the first embodiment.

INSTALLATION AND METHOD ACCORDING TO A THIRD EMBODIMENT OF THE INVENTION

[0588] An installation and a method according to the third embodiment of the invention will now be described with reference to FIG. 19. Elements similar to those of the previous embodiments are denoted by identical references.

[0589] Unlike the first embodiment, the means 29 for separating the transitory assembly 16 into the precursor ensemble 31, the second split assembly 27 and the transitory core 16 comprise means 75 for separating the transitory assembly 16 into a split ensemble 76 comprising at least one layer 76′ constituted by M4′=3 metal filamentary elements helically wound around the transitory core 16 and the second split assembly 27. The M4′ metal filamentary elements 14 originate from the layer 13 made up of M′ metal filamentary elements 14 of the transitory assembly 22. The split ensemble 76 thus comprises the layer 76′ and the transitory core 16, the M4′ metal filamentary elements being helically wound around the transitory core 16. In this case, the split ensemble 76 is made up of the layer 76′ and of the transitory core 16, the M4′ metal filamentary elements being helically wound around the transitory core 16. Here, the separation means 75 comprise means 75′ for splitting the transitory assembly 16 into the split ensemble 76 and the second split assembly 27.

[0590] Thus, the step 120 of separating the transitory assembly 22 into the precursor ensemble 31, the second split assembly 27 and the transitory core 16 comprises a step 131 of separating the transitory assembly 22 into the split ensemble 76 and the second split assembly 27. Here, the separation step 131 comprises a step 131′ of splitting the transitory assembly 22 into the split ensemble 76 and the second split assembly 27.

[0591] Unlike the first embodiment, the means 29 for separating the transitory assembly 16 into the precursor ensemble 31, the second split assembly 27 and the transitory core 16 comprise means 77 for separating the split ensemble 76 into the precursor ensemble 31 and the transitory core 16. Here, the separation means 77 comprise means 77′ for splitting the split ensemble 76 into the precursor ensemble 31 and the transitory core 16.

[0592] Thus, the step 120 of separating the transitory assembly 16 into the precursor ensemble 31, the second split assembly 27 and the transitory core 16 comprises a step 133 of separating the split ensemble 76 into the precursor ensemble 31 and the transitory core 16. Here, the separation step 133 comprises a step 133′ of splitting the precursor ensemble 31 and the transitory core 16.

[0593] It will be noted that the separation step 133 takes place upstream of the separation step 130. Similarly, the separation means 77 are arranged upstream of the separation means 35.

[0594] In addition, it will be noted here that M′=M4′+M2′ and M4′=M1″. In addition, analogously to the first embodiment, M1′=30.75×M′=5.25, and here M1′=30.70×M′=4.9 with here M′=7, which allows easy separation of the transitory core.

[0595] The other means and steps can be deduced mutatis mutandis from those of the previous embodiments.

INSTALLATION AND METHOD ACCORDING TO A FOURTH EMBODIMENT OF THE INVENTION

[0596] An installation and a method according to the fourth embodiment of the invention will now be described with reference to FIG. 20. Elements similar to those of the previous embodiments are denoted by identical references.

[0597] Unlike the third embodiment, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprise, in addition to the separation means 75, means 78 for separating the split ensemble 76 into the first split assembly 25 and the transitory core 16.

[0598] Thus, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 141 of separating the split ensemble 76 into the first split assembly 25 and the transitory core 16.

[0599] The separation means 78 comprise means 86 for separating the split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and finally the transitory core 16.

[0600] Thus, the separation step 141 comprises a step 142 of separating the split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and the transitory core 16.

[0601] The separation means 86 comprise means 87 for separating the split ensemble 76 into the main ensemble P forming the first split assembly 25 and a derived ensemble 83 comprising at least one layer 83′ consisting of M5′≥1 metal filamentary element(s) helically wound around the transitory core with here M5′=1. The M5′=1 metal filamentary element originates from the layer 76′ made up of the M4′=3 metal filamentary elements of the split ensemble 76. Here, the derived ensemble 83 consists of the layer 83′ consisting of the M5′=1 metal filamentary element 14 and of the transitory core 16, the M5′=1 metal filamentary element being helically wound around the transitory core 16.

[0602] Here, the separation means 87 comprise means 87′ for splitting the split ensemble 76 into the main ensemble P forming the first split assembly 25 and the derived ensemble 83.

[0603] Thus, the separation step 142 comprises a step 143 of separating the split ensemble 76 into the main ensemble P forming the first split assembly 25 and the derived ensemble 83. Here, the separation step 143 comprises a step 143′ of splitting the split ensemble 76 into the main ensemble P forming the first split assembly 25 and the derived ensemble 83.

[0604] The separation means 86 also comprise means 88 for separating the derived ensemble 83 into the additional ensemble K and the transitory core 16. Here, the separation means 88 comprise means 88′ for splitting the derived ensemble 83 into the additional ensemble K and the transitory core 16.

[0605] Thus, the separation step 142 comprises a step 144 of separating the derived ensemble 83 into the additional ensemble K and the transitory core 16. Here, the separation step 144 comprises a step 144′ of splitting of the derived ensemble 83 into the additional ensemble K and the transitory core 16.

[0606] The separation means 75 are arranged upstream of the separation means 78. Similarly, the separation step 131 takes place upstream of the separation step 141. The separation means 87 are arranged upstream of the separation means 88. Similarly, the separation step 143 takes place upstream of the separation step 144.

[0607] In this fourth embodiment, it will be noted that M′=M4′+M2′, M4′>M1′, M4′=M3+M3′ and M3=M1′, M4′=M3+M5′ and M5′=M3′. In addition, it will be noted here that M′=M4′+M2′ and M4′=M1″.

[0608] The other means and steps can be deduced mutatis mutandis from those of the previous embodiments.

INSTALLATION AND METHOD ACCORDING TO A FIFTH EMBODIMENT OF THE INVENTION

[0609] An installation and a method according to the fifth embodiment of the invention will now be described with reference to FIG. 21. Elements similar to those of the previous embodiments are denoted by identical references.

[0610] In the fifth embodiment, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprise means 90 for separating the transitory assembly 22 into a first split ensemble 76 and a second split ensemble 33. Here, the separation means 90 comprise means 90′ for splitting the transitory assembly 22 into the first split ensemble 76 and the second split ensemble 33.

[0611] Thus, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 150 of separating the transitory assembly 22 into the first split ensemble 76 and the second split ensemble 33. Here, the separation step 150 comprises a step 150′ of splitting the transitory assembly 22 into the first split ensemble 76 and the second split ensemble 33.

[0612] The first split ensemble 76 comprises at least one layer 76′ constituted by M6′=3 metal filamentary elements 14 helically wound around a first part 16′ of the transitory core, the M6′ metal filamentary elements 14 originating from the layer 13 made up of M′ metal filamentary elements 14 of the transitory assembly 22. The first split ensemble 76 comprises the layer 76′ and the first part 16′ of the transitory core, the M6′ metal filamentary elements 14 being helically wound around the first part 16′ of the transitory core. Here, the first split ensemble 76 consists of the layer 76′ constituted by the M6′=3 metal filamentary elements 14 and of the first part 16′ of the transitory core, the M6′ metal filamentary elements 14 being helically wound around the first part 16′ of the transitory core.

[0613] The second split ensemble 33 comprises at least one layer 33′ constituted by M7′=4 metal filamentary elements 14 helically wound around a second part 16″ of the transitory core, the M7′ metal filamentary elements 14 originating from the layer 13 made up of the M′ metal filamentary elements 14 of the transitory assembly 22. The second split ensemble 33 comprises the layer 33′ and the second part 16″ of the transitory core, the M7′ metal filamentary elements 14 being helically wound around the second part 16″ of the transitory core. Here, the second split ensemble 33 consists of the layer 33′ constituted by the M7′=4 metal filamentary elements 14 and of the second part 16″ of the transitory core, the M7′ metal filamentary elements 14 being helically wound around the second part 16″ of the transitory core.

[0614] The first part 16′ of the transitory core and the second part 16″ of the transitory core constitute, upstream of the separation means 24 of the transitory assembly, and therefore prior to the separation step 110, the transitory core 16 in its entirety.

[0615] The means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 also comprise means 91 for separating the first split ensemble 76 into the first split assembly 25 and the first part of the transitory core 16′. Thus, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 151 of separating the first split ensemble 76 into the first split assembly 25 and the first part of the transitory core 16′.

[0616] The means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 also comprise means 34 for separating the second split ensemble 33 into the second split assembly 27 and the second part of the transitory core 16″. Here, the separation means 34 comprise means 34′ for splitting the second split ensemble 33 into the second split assembly 27 and the second part of the transitory core 16″. Thus, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 124 of separating the second split ensemble 33 into the second split assembly 27 and the second part of the transitory core 16″. Here, the separation step 124 comprises a step 124′ of splitting the second split ensemble 33 into the second split assembly 27 and the second part of the transitory core 16″.

[0617] The means 91 for separating the first split ensemble 76 into the first split assembly 25 and the first part of the transitory core 16′ comprise means 92 for separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and the first part of the transitory core 16′. The main ensemble P comprises a layer P′, here consists of the layer P′, consisting of M3=2 metal filamentary elements 14 wound in a helix, the M3 metal filamentary elements 14 originating from the layer 76′ made up of the M6′ metal filamentary elements 14 of the first split ensemble 76. The additional ensemble K comprises a layer K′, here consists of the layer K′, made up of M3′=1 metal filamentary element wound in a helix, the M3′ metal filamentary element originating from the layer 76′ made up of the M6′ metal filamentary elements 14 of the first split ensemble 76. Thus, the step 151 of separating the first split ensemble 76 into the first split assembly 25 and the first part of the transitory core 16′ comprises a step 152 of separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and the first part of the transitory core 16′.

[0618] The means 92 for separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and the first part of the transitory core 16′ comprise means 77 for separating the first split ensemble 76 into the precursor ensemble 31 and the first part of the transitory core 16′. Here, the separation means 77 comprise means 77′ for splitting the first split ensemble 76 into the precursor ensemble 31 and the first part of the transitory core 16′. Thus, the step 152 of separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and the first part of the transitory core 16′ comprises a step 133 of separating the first split ensemble 76 into the precursor ensemble 31 and the first part of the transitory core 16′. Here, the separation step 133 comprises a step 133′ of splitting of the first split ensemble 76 into the precursor ensemble 31 and the first part of the transitory core 16′.

[0619] The means 92 for separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and the first part of the transitory core 16′ also comprise means 35 for separating the precursor ensemble 31 into the main ensemble P forming the first split assembly 25 and the additional ensemble K. Here, the separation means 35 comprise means 36 for splitting the precursor ensemble 31 into the main ensemble P forming the first split assembly 25 and the additional ensemble K. Thus, the step 152 of separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and the first part of the transitory core 16′ also comprises a step 130 of separating the precursor ensemble 31 into the main ensemble P forming the first split assembly 25 and the additional ensemble K. Here, the separation step 130 comprises a step 132 of splitting the precursor ensemble 31 into the main ensemble P forming the first split assembly 25 and the additional ensemble K.

[0620] The separation means 90 are arranged upstream of the separation means 91. Similarly, the separation step 150 takes place upstream of the separation step 151.

[0621] The separation means 90 are arranged upstream of the separation means 34. Similarly, the separation step 150 takes place upstream of the separation step 124.

[0622] The separation means 77 are arranged upstream of the separation means 35. Similarly, the separation step 133 takes place upstream of the separation step 130.

[0623] In this fifth embodiment, it will be noted that M6′>M1′, M7′=M2′, M′=M6′+M7′, M6′=M3+M3′, M3=M1′. M6′=M1″, M1″=M3+M3′, M6′=M1″ and M1″=M3+M3′.

[0624] In addition, analogously to the first and third embodiments, M1′=3≤0.75×M′=5.25, and here M1=3≤0.70×M′=4.9 with M′=7, which allows easy separation of the first part 16′ of the transitory core, and M2′=4≤0.75×M′=5.25, and here M2′=4≤0.70×M′=4.9, which allows easy separation of the second part 16′ of the transitory core.

[0625] The other means and steps can be deduced mutatis mutandis from those of the previous embodiments.

INSTALLATION AND METHOD ACCORDING TO A SIXTH EMBODIMENT OF THE INVENTION

[0626] An installation and a method according to the sixth embodiment of the invention will now be described with reference to FIG. 22. Elements similar to those of the previous embodiments are denoted by identical references.

[0627] Unlike the fifth embodiment, in the sixth embodiment, the means 92 for separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and the first part of the transitory core 16′ comprise means 87 for separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25 and the derived ensemble 83. The derived ensemble 83 comprises at least one layer 83′ made up of M5′=1 metal filamentary element helically wound around the first part of the transitory core 16′, the M5′=1 metal filamentary element 14 originating from the layer 76′ made up of the M6′=3 metal filamentary elements of the first split ensemble 76. The derived ensemble 83 here consists of the layer 83′ and of the first part of the transitory core 16′, the M5′=1 metal filamentary element 14 of the layer 83′ being helically wound around the first part of the transitory core 16′. Here, the separation means 87 comprise means 87′ for splitting the first split ensemble 76 into the main ensemble P forming the first split assembly 25 and the derived ensemble 83. Thus, the step 152 of separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and the first part of the transitory core 16′ comprises a step 143 of separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25 and the derived ensemble 83. Here, the separation step 143 comprises a step 143′ of splitting of the first split ensemble 76 into the main ensemble P forming the first split assembly 25 and the derived ensemble 83.

[0628] The means 92 for separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and the first part of the transitory core 16′ also comprise means 88 for separating the derived ensemble 83 into the additional ensemble K and the first part of the transitory core 16′. Here, the separation means 88 comprise means 88′ for splitting the derived ensemble 83 into the additional ensemble K and the first part of the transitory core 16′. Thus, the step 152 of separating the first split ensemble 76 into the main ensemble P forming the first split assembly 25, the additional ensemble K and the first part of the transitory core 16′ comprises a step 144 of separating the derived ensemble 83 into the additional ensemble K and the first part of the transitory core 16′. Here, the separation step 144 comprises a step 144′ of splitting of the derived ensemble 83 into the additional ensemble K and the first part of the transitory core 16′.

[0629] The separation means 87 are arranged upstream of the separation means 88. Similarly, the separation step 143 takes place upstream of the separation step 144.

[0630] In this sixth embodiment, M6′=M3+M5′, M3=M1′ and M5′=M3′.

[0631] The other means and steps can be deduced mutatis mutandis from those of the previous embodiments.

INSTALLATION AND METHOD ACCORDING TO A SEVENTH EMBODIMENT OF THE INVENTION

[0632] An installation and a method according to the seventh embodiment of the invention will now be described with reference to FIG. 23. Elements similar to those of the previous embodiments are denoted by identical references.

[0633] Unlike the second embodiment, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprise means 75 for separating the transitory assembly 22 into the split ensemble 76 and the second split assembly 27. Here, the separation means 75 comprise means 75′ for splitting the transitory assembly 22 into the split ensemble 76 and the second split assembly 27. Thus, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 131 of separating the transitory assembly 22 into the split ensemble 76 and the second split assembly 27. Here, the separation step 131 comprises a step 131′ of splitting the transitory assembly 22 into the split ensemble 76 and the second split assembly 27.

[0634] Unlike the second embodiment, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprise means 77 for separating the split ensemble 76 into the first split assembly 25 and the transitory core 16. In this case, the separation means 77 comprise means 77′ for splitting the split ensemble 76 into the first split assembly 25 and the transitory core 16. Thus, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 133 of separating the split ensemble 76 into the first split assembly 25 and the transitory core 16. In this case, the separation step 133 comprises a step 133′ of splitting the split ensemble 76 into the second split assembly 25 and the transitory core 16.

[0635] The separation means 75 are arranged upstream of the separation means 77. Similarly, the separation step 131 takes place upstream of the separation step 133.

[0636] In this seventh embodiment, M′=M4′+M2′ and M4′=M1′.

[0637] The other means and steps can be deduced mutatis mutandis from those of the previous embodiments.

INSTALLATION AND METHOD ACCORDING TO AN EIGHTH EMBODIMENT OF THE INVENTION

[0638] An installation and a method according to the eighth embodiment of the invention will now be described with reference to FIG. 24. Elements similar to those of the previous embodiments are denoted by identical references.

[0639] In the eighth embodiment, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprise means 90 for separating the transitory assembly 22 into the first split ensemble 76 comprising at least one layer 76′ constituted by M6′=3 metal filamentary elements 14 helically wound around a first part 16′ of the transitory core, and the second split ensemble 33 comprising at least one layer 33′ constituted by the M7′=3 metal filamentary elements 14 helically wound around a second part 16″ of the transitory core.

[0640] The first split ensemble 76 here consists of the layer 76′ made up of the M6′ metal filamentary elements 14 and of the first part of the transitory core 16′, the M6′ metal filamentary elements being helically wound around the first part of the transitory core 16′. The second split ensemble 33 consists of the layer 33′ consisting of the M7′ metal filamentary elements 14 and of the second part of the transitory core 16″, the M7′ metal filamentary elements 14 being helically wound around the second part of the transitory core 16″.

[0641] As in the embodiments illustrated in FIGS. 21 and 22, the first part of the transitory core 16′ and the second part of the transitory core 16″ constitute, upstream of the means 24 for separating the transitory assembly 22 and prior to the step 110 of separating the transitory assembly 22, the transitory core 16 in its entirety.

[0642] Here, the separation means 90 comprise means 90′ for splitting the transitory assembly 22 into the first split ensemble 76 and the second split ensemble 33. Thus, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 150 of separating the transitory assembly 22 into the first split ensemble 76 and the second split ensemble 33. Here, the separation step 150 comprises a step 150′ of splitting the transitory assembly 22 into the first split ensemble 76 and the second split ensemble 33.

[0643] Analogously to the seventh embodiment, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprise means 77 for separating the first split ensemble 76 into the first split assembly 25 and the first part 16′ of the transitory core. Here, the separation means 77 comprises means 77′ for splitting the first split ensemble 76 into the first split assembly 25 and the first part 16′ of the transitory core. Thus, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 133 of separating the first split ensemble 76 into the first split assembly 25 and the first part 16′ of the transitory core. Here, the separation step 133 comprises a step 133′ of splitting of the first split ensemble 76 into the first split assembly 25 and the first part 16′ of the transitory core.

[0644] Analogously to the second embodiment, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprise means 74 for separating the second split ensemble 33 into the second split assembly 27 and the second part 16″ of the transitory core. Here, the separation means 74 comprise means 74′ for splitting the second split ensemble 33 into the second split assembly 27 and the second part 16″ of the transitory core. Thus, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 comprises a step 123 of separating the second split ensemble 33 into the second split assembly 27 and the second 16″ part of the transitory core. Here, the separation step 123 comprises a step 123′ of splitting the second split ensemble 33 into the second split assembly 27 and the second part 16″ of the transitory core.

[0645] The separation means 90 are arranged upstream of the separation means 77 and 74. Similarly, the separation step 150 takes place upstream of each separation step 133 and 123.

[0646] In this eighth embodiment, M′=M6′+M7′, M6′=M1′ and M7′=M2′.

[0647] The other means and steps can be deduced mutatis mutandis from those of the previous embodiments.

INSTALLATION AND METHOD ACCORDING TO A NINTH EMBODIMENT OF THE INVENTION

[0648] An installation and a method according to the ninth embodiment of the invention will now be described with reference to FIG. 25. Elements similar to those of the previous embodiments are denoted by identical references.

[0649] Unlike the first, third and fourth embodiments, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 16 or one or more ensembles comprising the transitory core 16 comprise, upstream of the reassembly means 37, means 24′ for splitting the transitory assembly 22 into the first split assembly 25, the second split assembly 27, the transitory core 16 and finally a split ensemble 43 comprising at least one layer 43′, here made up of layer 43′, made up of M4′=1 metal filamentary element wound in a helix, the M4′=1 metal filamentary element originating from the layer 13 made up of the M′ metal filamentary elements 14 of the transitory assembly 22. Similarly, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 22 or one or more ensembles comprising the transitory core 22 comprises, upstream of the reassembly step 140, a step 110′ of splitting the transitory assembly 22 into the first split assembly 25, the second split assembly 27, the transitory core 16 and finally the split ensemble 43.

INSTALLATION AND METHOD ACCORDING TO A TENTH EMBODIMENT OF THE INVENTION

[0650] An installation and a method according to the tenth embodiment of the invention will now be described with reference to FIG. 26. Elements similar to those of the previous embodiments are denoted by identical references.

[0651] Unlike the second embodiment, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 22 or one or more ensembles comprising the transitory core 22 comprise, upstream of the reassembly means 37, means 24′ for splitting the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 22. Similarly, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 22 or one or more ensembles comprising the transitory core 22 comprises, upstream of the reassembly step 140, a step 110′ of splitting of the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 22.

INSTALLATION AND METHOD ACCORDING TO AN ELEVENTH EMBODIMENT OF THE INVENTION

[0652] An installation and a method according to the eleventh embodiment of the invention will now be described with reference to FIG. 27. Elements similar to those of the previous embodiments are denoted by identical references.

[0653] Unlike the fifth and sixth embodiments, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 22 or one or more ensembles comprising the transitory core 22 comprise, upstream of the reassembly means 37, means 24′ for splitting the transitory assembly 22 into the first split assembly 25, the second split assembly 27, a first part 16′ of the transitory core, a second part 16″ of the transitory core and a split ensemble 43 similar to that of the ninth embodiment. The first part 16′ of the transitory core and the second part 16″ of the transitory core constitute, upstream of the means 24 for separating the transitory assembly 22, the transitory core 16. Similarly, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 22 or one or more ensembles comprising the transitory core 22 comprises, upstream of the reassembly step 140, a step 110′ of splitting the transitory assembly 22 into the first split assembly 25, the second split assembly 27, the first part 16′ of the transitory core, the second part 16″ of the transitory core and the split ensemble 43.

INSTALLATION AND METHOD ACCORDING TO A TWELFTH EMBODIMENT OF THE INVENTION

[0654] An installation and a method according to the twelfth embodiment of the invention will now be described with reference to FIG. 28. Elements similar to those of the previous embodiments are denoted by identical references.

[0655] Unlike the eighth embodiment, the means 24 for separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 22 comprise, upstream of the reassembly means 37, means 24′ for splitting of the transitory assembly 22 into the first split assembly 25, the second split assembly 27, a first part 16′ of the transitory core and a second part 16″ of the transitory core. The first part 16′ of the transitory core and the second part 16″ of the transitory core constitute, upstream of the means 24 for separating the transitory assembly 22, the transitory core 16. Similarly, the step 110 of separating the transitory assembly 22 into the first split assembly 25, the second split assembly 27 and the transitory core 22 comprises, upstream of the reassembly step 140, a step 110′ of splitting the transitory assembly 22 into the first split assembly 25, the second split assembly 27, the first part 16′ of the transitory core and the second part 16″ of the transitory core.

[0656] The invention is not limited to the embodiments described above. Indeed, it is quite possible to envisage using, without departing from the scope of the invention, a method and an installation in which the step and the means for separating the transitory assembly into at least the first split assembly, the second split assembly and the transitory core or one or more ensembles comprising the transitory core is a step or are means for separating the transitory assembly into the first split assembly, the second split assembly and an ensemble comprising the transitory core and filamentary elements originating from the transitory assembly. In such embodiments, for example, the separation step 144 and the separation means 88 of FIGS. 20 and 22 are omitted.

[0657] It is also possible to envisage a step of separating, respectively means for separating, the transitory assembly into more than the first and second split assemblies AF1, AF2, for example three or even four split assemblies. In these embodiments, the reassembly step, respectively the reassembly means, may allow the reassembly of more than the first and second split assemblies AF1, AF2, for example the reassembly of three or even four split assemblies.