EP3068716B1 - Reel with removable ferrule - Google Patents

Reel with removable ferrule Download PDF

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Publication number
EP3068716B1
EP3068716B1 EP14798824.0A EP14798824A EP3068716B1 EP 3068716 B1 EP3068716 B1 EP 3068716B1 EP 14798824 A EP14798824 A EP 14798824A EP 3068716 B1 EP3068716 B1 EP 3068716B1
Authority
EP
European Patent Office
Prior art keywords
guiding element
blade
sector
dimension
coil according
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.)
Active
Application number
EP14798824.0A
Other languages
German (de)
French (fr)
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EP3068716A1 (en
Inventor
Jean-Michel BERGER
Bruno PARSEIHIAN
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.)
Conductix Wampfler France
Original Assignee
Conductix Wampfler France
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Publication date
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Publication of EP3068716A1 publication Critical patent/EP3068716A1/en
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Publication of EP3068716B1 publication Critical patent/EP3068716B1/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18Constructional details
    • B65H75/22Constructional details collapsible; with removable parts
    • B65H75/2236Collapsible flanges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/04Kinds or types
    • B65H75/08Kinds or types of circular or polygonal cross-section
    • B65H75/14Kinds or types of circular or polygonal cross-section with two end flanges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18Constructional details
    • B65H75/22Constructional details collapsible; with removable parts
    • B65H75/2254Constructional details collapsible; with removable parts with particular joining means for releasably connecting parts
    • B65H75/2263Discrete fasteners, e.g. bolts or screws
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/30Handled filamentary material
    • B65H2701/34Handled filamentary material electric cords or electric power cables
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00Handled material; Storage means
    • B65H2701/50Storage means for webs, tapes, or filamentary material
    • B65H2701/51Cores or reels characterised by the material
    • B65H2701/513Cores or reels characterised by the material assembled mainly from rigid elements of the same kind
    • B65H2701/5134Metal elements
    • B65H2701/51344Metal profiles

Definitions

  • the present invention relates to the technical field of devices for winding and unwinding a link such as a cable, a pipe, an optical fiber or the like.
  • each set is attached to the mandrel by their proximal ends and extend radially from the mandrel.
  • the distal ends of the arms of each set are attached to a respective ferrule for reinforcing the structure of the coil.
  • each ferrule is generally composed of several sectors A1, A2 in the form of a portion of a circle and whose juxtaposition makes it possible to obtain the ferrule.
  • the fact that the ferrule is composed of several juxtaposed sectors reduces the clutter of the coil once it disassembled.
  • Each sector A1, A2 is composed of a curved tubular A3 spar.
  • the spar A3 comprises an opening A4 at one of its ends, and a tongue A5 at the other of its ends.
  • Each sector A1, A2 may also comprise two brackets A6, A7 integral with the beam A3, and extending for example on the convex side of the beam A3, in the vicinity of each of its ends.
  • the tongue A5 of a beam A3 is intended to be plugged into the opening A4 of an adjacent beam A3.
  • the two spars A3 are fixed to each other, for example by screwing a screw A8 through holes A9 , possibly threaded, brackets next to the side rails A3 adjacent.
  • a disadvantage of this type of coil is that the establishment of the last sector of a ferrule is difficult to implement. Indeed and as illustrated in figure 2 , it is necessary to apply a force on the ferrule tending to pivot - along an axis perpendicular to the axis of symmetry A10 of the ferrule - the last two sectors A1, A2 to fit to insert the tongue A5 of the last sector in the A4 opening of the adjacent sector.
  • This force applied to the shell can induce its torsion, and thus a variation of the spacings of the arms of the sets relative to each other.
  • Another disadvantage of this type of coil relates to the difficulties of alignment of the sectors of the shell relative to each other. Indeed, this type of coil does not allow to make ferrules having the shape of a perfect circle in which the outer faces of the successive sectors are perfectly adjusted. This is especially true for coils of large diameter (i.e. greater than or equal to 2 meters). However, such quality of alignment of the outer faces of the adjacent sectors is necessary to limit the risk of degradation of the link to wind / unroll the coil during the rotation thereof.
  • An object of the present invention is to provide a coil for overcoming at least one of the aforementioned drawbacks.
  • the "width" of the guide element will be defined relative to a first dimension parallel to the axis of rotation of the coil and to the junction plane of the adjacent sectors.
  • the "height” of the guide element will be defined relative to a second dimension parallel to a radial direction of the coil (ie a second dimension perpendicular to the axis of rotation and parallel to the junction plane).
  • the "length" of the guide element will be defined relative to a third dimension parallel to a direction of movement of the guide element between the retracted and unhooked positions.
  • each spar can have different shapes.
  • each spar may be circular, square or rectangular in section.
  • the coil comprises at least one end sector including the retractable guide element. This limits the deformation of the ferrule during the establishment of the last sector, namely the final sector.
  • each ferrule comprises a single final sector, the other sectors being of the type of the prior art (that is to say including a spar provided with a fixed tongue intended to be plugged into a spar d an adjacent area).
  • each sector of a ferrule is a final sector.
  • each sector of a ferrule comprises a retractable guiding element.
  • a width of the guide element - according to the first dimension parallel to the axis of rotation and to the junction plane - may be greater than or equal to the distance along the first dimension between the inner faces of the adjacent spars, so that the guide member comes into contact with the inner faces of the adjacent longitudinal members in the first dimension when said guide member is in the disengaged position.
  • the width of the retractable guide element is adapted to the spacing between the inner faces of the spar according to the first dimension. This allows lateral alignment of the adjacent sectors with respect to each other. Thus, in the case of longitudinal members of square or rectangular section, this ensures a good quality of the adjustment of the external lateral faces (ie sides of the longitudinal members extending in planes perpendicular to the axis of rotation of the coil ) side members of adjacent sectors.
  • a height of the guide element - in the second dimension parallel to a radial direction of the coil - is greater than or equal to the distance along the second dimension between the inner faces of the adjacent spars, so that the element guide means engages in the second dimension with the inner faces of the adjacent beams when said guide member is in the disengaged position.
  • Radially aligning the sectors constituting the shell makes it possible to obtain a shell whose center of gravity is located on the axis of the coil, which facilitates its rotation and avoids any untimely variations in its angular velocity. when the coil is moving.
  • the guide member comprises a gripping member for applying a force to induce movement of the guide member between the retracted position and the disengaged position.
  • a gripping member for applying a force to induce movement of the guide member between the retracted position and the disengaged position.
  • the means for the application of a force comprise for example a lug extending projecting from an opening in the spar of the final sector.
  • This tab may comprise a coupling element - such as a through opening or a bore - intended to cooperate with a clamping element - such as a threaded rod or a screw and a nut - connected to a support piece fixed to the adjacent sector, the tightening of the clamping element inducing the application of a stress on adjacent sectors tending to maintain the side members of the adjacent sectors abut against each other. This ensures good abutment contact between two adjacent sectors.
  • a coupling element - such as a through opening or a bore - intended to cooperate with a clamping element - such as a threaded rod or a screw and a nut - connected to a support piece fixed to the adjacent sector
  • the guide element may be composed of several cooperating parts to form the guide element. This facilitates the introduction of the guide element in the spar of the final sector.
  • the guide element is composed of several parts allows to insert it into an opening in the spar of the final sector, the dimensions of the opening being smaller than the dimensions of the guide member a once this one assembled.
  • the guide member may for example comprise one (or more) retractable blade (s) extending (each) generally in a plane parallel to the axis of rotation when the guide member is in the disengaged position.
  • the width of the blade according to the first dimension is greater than or equal to the distance between the inner faces of the adjacent beams according to the first dimension. This ensures lateral alignment of adjacent sectors of the shell.
  • the guide member may also comprise at least one retractable plate extending in a plane substantially perpendicular to the plane of the blade, the plate and / or the blade including insertion means to allow insertion of the blade into the plate.
  • the insertion means consist of a slot formed in the plate, and intended to receive the retractable blade.
  • the insertion means consist of a slot formed in the blade, and intended to receive the plate.
  • the insertion means comprises a first slot in the blade and a second slot in the plate, the slots extending over only a portion of the blade and the plate.
  • the insertion means allow to maintain the position of the blade relative to the plate.
  • the plate may extend generally in a plane substantially perpendicular to the axis of rotation when said guide member is in the disengaged position.
  • the height of the plate according to the second dimension is then greater than or equal to the distance between the internal faces of the adjacent spars according to the second dimension.
  • the retractable plate may be U-shaped so as to constitute two branches extending in parallel planes and each including a slot. This ensures angular blocking of adjacent sectors. This limits the risk of kinking the ferrule.
  • the position of the (or) blade (s) relative to the (or) plate (s) can be chosen so as to benefit from the elastic properties of the side walls of the longitudinal members.
  • the blade and the plate can be arranged so that the blade extends in a plane between 1/3 and 2/3 of the height of the plate when the guide element is assembled.
  • the position of the (or) plate (s) relative to the (or) blade (s) can be chosen so as to benefit from the elastic properties of the upper and lower walls of the longitudinal members.
  • the blade and the plate can be arranged so that the plate extends in a plane between 1/10 and 1/3 of the width of the blade when the guide element is assembled.
  • the guide element of a sector may comprise at least four support points intended to come into contact with distinct internal faces of an adjacent sector spar when the guide element is in the disengaged position.
  • fuller means a continuous surface of the guide element intended to come into contact with an inner face of an adjacent sector spar.
  • the guide element comprises six points of support intended to come into contact with the inner faces of the adjacent sector spar in the disengaged position. This allows on the one hand to ensure proper alignment of adjacent sectors and on the other hand to limit the risk of twisting adjacent sectors.
  • the coil also includes a support 40 extending between the side arm assemblies 20 to form a bearing surface of the link.
  • the mandrel 10 has two opposite circular faces 11, 12 and a side face. In the embodiment illustrated in Figures 3 and 4 the mandrel 10 has a cylindrical bearing surface. More specifically, the mandrel 10 is a disk of thickness adapted to the link to be wound / unrolled.
  • the mandrel 10 may comprise a tube extending along its axis of revolution and forming the axis of rotation 13 of the coil 1.
  • the mandrel 10 may comprise threaded rods mounted at the periphery of each circular face 11, 12 to allow the attachment of the lateral arm assemblies 20 using for example nuts. These threaded rods can be secured to the mandrel 10 or be fixed to the mandrel 10, for example by screwing into threaded through openings formed in the mandrel 10.
  • Each arm assembly 20 has a plurality of arms 21 extending radially from the mandrel 10. These arms 21 are for example metal. In the embodiment illustrated in Figures 3 and 4 the coil 1 comprises thirty arms 21.
  • Each arm 21 comprises a proximal end 22 close to the mandrel 10 and a distal end 23 remote from the mandrel 10.
  • the arms 21 are coupled to the mandrel 10 by their proximal ends 22.
  • the distal ends 23 of the arms 21 of each arm assembly 20 are attached to a respective ferrule 30 illustrated in FIG. figure 3 .
  • This ferrule may be metallic.
  • the ferrule 30 reinforces the structure of the coil.
  • Each ferrule 30 is composed of a plurality of sectors 31 in a portion of a circle and whose juxtaposition makes it possible to obtain the ferrule 30.
  • the fact that the ferrule 30 is composed of several juxtaposable sectors makes it possible to reduce the bulk of the coil. once this one dismounted.
  • the coil may for example comprise ten sectors 31 in the form of a portion of a circle.
  • Each sector 31 makes it possible to connect distal ends 23 of three successive arms 21, the different sectors 31 being juxtaposed and fixed together to form the ferrule 30.
  • each sector 31 comprises a curved tubular spar 310, for example of rectangular section.
  • One of the ends of the sector 31 comprises a support piece 311 fixed on an outer face of the upper wall 3100 of the spar 310.
  • the other end of the sector 31 comprises a retractable guide element 312, 313 - which will be described in more detail later.
  • the support piece 311 is intended to be connected to the guide element 312, 313 of an adjacent sector by means of a clamping element - such as a screw 314 associated with a nut 315 - making it possible to fix together two adjacent sectors.
  • a clamping element - such as a screw 314 associated with a nut 315 - making it possible to fix together two adjacent sectors.
  • the clamping of the support piece 311 and the guide element 312, 313 through the clamping element 314, 315 makes it possible to apply a tangential stress on the adjacent sectors tending to maintain the longitudinal members 310 of the adjacent sectors 31 abutting against each other.
  • the base 3110 comprises two holes 3114 to allow attachment of the support piece 311 on the upper wall 3100 of the spar 310.
  • the attachment portion 3112 comprises a light 3115, possibly threaded for the passage of the clamping element 314 , 315 to join the support piece 311 and the guide element 312, 313 of the adjacent sector.
  • the retractable guide element 312, 313 allows the holding in position - particularly laterally - of adjacent sectors.
  • the guide element is intended to be inserted at the end of the spar opposite the end on which the support piece 311 is fixed.
  • the guide element 312, 313 is composed of two separate parts cooperating with each other. Specifically, the guide member 312,313 includes a first piece 312 and a second piece 313 to be assembled to form the guide member.
  • the width and the height of the the guide element - once the component parts have been assembled - may be greater than or equal to the distance between the inner faces of the side walls of the spar on the one hand, and the distance between the inner faces of the upper and lower walls 3100 respectively 3102 of the spar 310 on the other hand.
  • the first piece 312 is inserted at the tubular end of the spar, while the second piece 313 is inserted through an opening 3103 formed in the upper wall 3100 of the spar 310, and whose width is a function of the width. of the second room 313.
  • this width of the opening 3103 formed in the upper wall 3100 of the spar 310 is smaller than the distance between the inner faces of the side walls 3101 of the spar 310. This makes it possible not to weaken the spar 310.
  • This blade portion 3120 (extending outwards in the disengaged position) is intended to penetrate inside a spar 310 of an adjacent sector 31 during the assembly of the different sectors 31 to form the ferrule 30.
  • the end of the blade portion - extending outwardly of the spar in the disengaged position - includes a bevel 3121 so as to facilitate its insertion into the spar of the adjacent sector.
  • the width of the retractable blade 3120 is greater than or equal to the distance between the inner faces of the side walls 3101 of the spar 310. This makes it possible to ensure lateral alignment of the adjacent sectors 31 of the ferrule 30.
  • the blade 3120 is preferably intended to be positioned at a distance from the lower wall of the spar of between 1/3 and 2/3 of the distance between the inner faces of the upper and lower walls. lower spar. This makes it possible to increase the tolerances relative to the width of the blade by taking advantage in particular of the bending phenomenon of the side walls of the spar.
  • the first piece 312 also comprises a tongue 3122 extending perpendicularly to the blade 3120 and including a ramp 3123 at its free end.
  • This ramp 3123 is for example a return obtained by folding.
  • the blade 3120 and the tongue 3122 are in one piece. They are obtained by folding and cutting a metal plate. The technical effects associated with the language and the ramp will be described in more detail in the section entitled "Principle of Operation”.
  • the second part of the guide element comprises a retractable plate 3130, possibly with a slot 3131.
  • the slot 3131 of the retractable plate 3130 is intended to receive the blade 3120 of the first part 312 to ensure a locking of the first piece 312 in the second room 313.
  • the second part 313 is movable in the direction of displacement D between the retracted and unhooked positions. In the disengaged position, a portion of the plate 3130 extends outside the spar 310, at the end of the spar 310.
  • the plate portion 3130 extending outwards in the disengaged position is intended to penetrate inside a spar 310 of an adjacent sector 31 during the assembly of the different sectors 31 to form the ferrule 30.
  • the end of the plate portion 3130 may include a bevel 3132 to facilitate its insertion into the spar 310 of the adjacent sector 31.
  • the height of the retractable plate 3130 is preferably greater than or equal to the distance between the inner faces of the upper and lower walls of the beam 310. This makes it possible to ensure radial alignment of the adjacent sectors during assembly of the shell.
  • the retractable plate 3130 may be U-shaped so as to constitute two branches extending in parallel planes and each including a slot 3131. This makes it possible to ensure angular locking of the adjacent sectors during assembly of the shell 30 .
  • the blade 3120 of the first piece 312 is intended to be plugged into the slots 3131. This ensures better retention in position of the blade 3120.
  • the second piece 313 also comprises a tab 3133 extending substantially in a plane perpendicular to the plane of the retractable plate (or to the plane of the branches of the retractable plate).
  • the second piece 313 is intended to be positioned in the spar 310 so that the tab 3133 extends outside the spar through the opening 3103 formed in the upper wall 3100 of the spar 310.
  • This lug 3133 allows a user to move the guide member 312, 313 in translation.
  • the tab 3133 comprises a hole 3135, possibly tapped, for the passage of the clamping element 314, 315 to join the support piece 311 and the guide element 312, 313 of the adjacent sector.
  • the lug may comprise one (or more) rims forming a (or) fin (s) 3134 to increase its rigidity so as to limit the risk of bending of the lug during screwing of the clamping element 314, 315.
  • each fin 3134 extends in a plane perpendicular to the tab, the fins being located at the peripheral edges of the tab.
  • the length and dimensions of the fins 3134 and their spacing are provided so that the fins 3134 of the guide member abut against the hooking portion 3112 when the guide member 312, 313 is in the disengaged position. This provides a mechanical support between the guide member and the support piece 311 when tightening the clamping element. The formation of this mechanical support avoids the risk of pivoting of the guide element (312, 313) during tightening of the clamping element.
  • the guide element comprises a groove 3136 to allow the passage of the rebates 3134 and the plate 3130 on either side of the upper wall 3100 of the spar when the guide element is moved between the position retracted and unobstructed.
  • this step may induce a twisting of the ferrule due to efforts to be applied on the shell to allow the passage of the tongue in the opening of the adjacent sector.
  • the use of a retractable guiding element makes it possible to limit this risk. Indeed, in the retracted position, the guide member is fully included in the spar of its associated sector so that it does not exceed the end of the spar. Thus, the two adjacent sectors can be assembled by contacting the ends of the adjacent spars and moving them relative to one another along a junction plane so as to align them with each other. other.
  • the guide member 312, 313 is positioned at a spar end 310 of one of the adjacent sectors 31. Specifically, the guide member 312, 313 is installed at end of the spar 310 having an opening 3103 formed in its upper wall 3100 ( figure 4 ).
  • the second piece 313 is inserted at the opening 3103 formed in the upper wall 3100 of the spar 310. More specifically, the second piece is inserted so that the tab 3133 extends through the opening 3103 formed in the upper wall 3100 of the spar 310 ( figure 5 ).
  • the first piece 312 is inserted at the tubular end of the spar 310. This first piece 312 is inserted so that the tongue 3122 is furthest from the end of the spar and extends through the opening 3103 formed in the upper wall 3100 of the spar 310 ( figure 6 ).
  • the blade 3120 of the first piece 312 is inserted into the slots 3131 of the second piece 313 until the tongue - in particular the return obtained by folding - comes into abutment against the lug 3133 of the second piece ( figure 7 ).
  • the guide element is then in the retracted position.
  • a second step is to assemble the adjacent spars.
  • the ends of the adjacent spars are aligned relative to one another so that their ends are in contact along a joining plane ( figure 8 ).
  • the guide element 312, 313 is then moved in translation towards the junction plane of the longitudinal members until the ramp comes into abutment against the edge of the opening 3103, thus ensuring the locking of the first part and its maintaining in position in the spar.
  • the guiding element thus moves from the retracted position to the disengaged position so that the guiding element extends on either side of the junction plane of the adjacent sectors ( figure 9 ).
  • the clamping member 314, 315 is installed between the support piece 311 and the tab 3133 of the second piece 313.
  • the sectors of a shell are all identical and include in particular a retractable guide element.
  • each ferrule could comprise a single sector including a retractable guide element as described above, the other sectors being of the type described with reference to the prior art (i.e. spar including a tongue).
  • the sector including the retractable guide element will advantageously be assembled to the other sectors last to avoid the risk of deformation of the ferrule during the establishment of the last sector.

Description

DOMAINE TECHNIQUETECHNICAL AREA

La présente invention concerne le domaine technique des dispositifs permettant d'enrouler et de dérouler un lien tel qu'un câble, un tuyau, une fibre optique ou similaire.The present invention relates to the technical field of devices for winding and unwinding a link such as a cable, a pipe, an optical fiber or the like.

ETAT DE LA TECHNIQUESTATE OF THE ART

On connaît des dispositifs d'enroulement et de déroulement d'un lien de transport d'énergie tel qu'un câble.There are known devices for winding and unwinding an energy transport link such as a cable.

Un tel dispositif comprend classiquement :

  • un mandrin comportant une surface cylindrique portante sur laquelle sont disposées les spires intérieures du lien,
  • deux ensembles de bras latéraux semblables de part et d'autre du mandrin, les deux ensembles de bras étant destinés à définir le volume de l'enroulement du lien et à le contenir latéralement, jouant ensemble le rôle de joues,
  • deux viroles associées chacune à un ensemble respectif de bras, chaque virole étant solidaire des extrémités libres des bras de son ensemble de bras associé.
Such a device conventionally comprises:
  • a mandrel comprising a bearing cylindrical surface on which are arranged the inner turns of the link,
  • two sets of side arms similar on both sides of the mandrel, the two sets of arms being intended to define the volume of the winding of the link and to contain it laterally, playing together the role of cheeks,
  • two ferrules each associated with a respective set of arms, each ferrule being integral with the free ends of the arms of its associated arm assembly.

Les bras de chaque ensemble sont fixés au mandrin par leurs extrémités proximales et s'étendent radialement depuis le mandrin. Les extrémités distales des bras de chaque ensemble sont fixées à une virole respective permettant de renforcer la structure de la bobine.The arms of each set are attached to the mandrel by their proximal ends and extend radially from the mandrel. The distal ends of the arms of each set are attached to a respective ferrule for reinforcing the structure of the coil.

Comme illustré à la figure 1, chaque virole est généralement composée de plusieurs secteurs A1, A2 en forme de portion de cercle et dont la juxtaposition permet d'obtenir la virole. Le fait que la virole soit composée de plusieurs secteurs juxtaposables permet de réduire l'encombrement de la bobine une fois celle-ci démontée.As illustrated in figure 1 each ferrule is generally composed of several sectors A1, A2 in the form of a portion of a circle and whose juxtaposition makes it possible to obtain the ferrule. The fact that the ferrule is composed of several juxtaposed sectors reduces the clutter of the coil once it disassembled.

Chaque secteur A1, A2 est composé d'un longeron A3 tubulaire incurvé. Le longeron A3 comprend une ouverture A4 à l'une de ses extrémités, et une languette A5 à l'autre de ses extrémités. Chaque secteur A1, A2 peut également comprendre deux équerres A6, A7 solidaires du longeron A3, et s'étendant par exemple sur la face convexe du longeron A3, au voisinage de chacune de ses extrémités.Each sector A1, A2 is composed of a curved tubular A3 spar. The spar A3 comprises an opening A4 at one of its ends, and a tongue A5 at the other of its ends. Each sector A1, A2 may also comprise two brackets A6, A7 integral with the beam A3, and extending for example on the convex side of the beam A3, in the vicinity of each of its ends.

La languette A5 d'un longeron A3 est destinée à être enfichée par emboîtement dans l'ouverture A4 d'un longeron A3 adjacent. Une fois la languette A5 d'un longeron A3 emboîtée dans l'ouverture A4 du longeron A3 voisin, les deux longerons A3 sont fixés l'un à l'autre, par exemple par vissage d'une vis A8 au travers d'alésages A9, éventuellement filetés, des équerres en regard des longerons A3 adjacents.The tongue A5 of a beam A3 is intended to be plugged into the opening A4 of an adjacent beam A3. Once the tongue A5 of a spar A3 nested in the opening A3 of the adjacent spar A3, the two spars A3 are fixed to each other, for example by screwing a screw A8 through holes A9 , possibly threaded, brackets next to the side rails A3 adjacent.

Le document WO 99/50135 décrit une bobine selon le préambule de la revendication 1.The document WO 99/50135 discloses a coil according to the preamble of claim 1.

Un inconvénient de ce type de bobine est que la mise en place du dernier secteur d'une virole est difficile à mettre en oeuvre. En effet et comme illustré à la figure 2, il est nécessaire d'appliquer un effort sur la virole tendant à faire pivoter - selon un axe perpendiculaire à l'axe de symétrie A10 de la virole - les deux derniers secteurs A1, A2 à emboîter pour enficher la languette A5 du dernier secteur dans l'ouverture A4 du secteur adjacent. Cet effort appliqué à la virole peut induire sa torsion, et donc une variation des écartements des bras des ensembles les uns par rapport aux autres.A disadvantage of this type of coil is that the establishment of the last sector of a ferrule is difficult to implement. Indeed and as illustrated in figure 2 , it is necessary to apply a force on the ferrule tending to pivot - along an axis perpendicular to the axis of symmetry A10 of the ferrule - the last two sectors A1, A2 to fit to insert the tongue A5 of the last sector in the A4 opening of the adjacent sector. This force applied to the shell can induce its torsion, and thus a variation of the spacings of the arms of the sets relative to each other.

Or, pour permettre un enroulement correct du lien sur une telle bobine, il est nécessaire de maîtriser la position des bras des ensembles. Notamment dans le cas d'un enroulement monospire du lien sur la bobine, il est nécessaire que :

  • chaque ensemble de bras présente une symétrie de révolution autour d'un axe de rotation du mandrin,
  • l'écartement entre les extrémités proximales (i.e. proches du mandrin) des ensembles de bras soit constant, et
  • l'écartement entre les extrémités distales (i.e. éloignées du mandrin) des ensembles de bras soit constant.
However, to allow a correct winding of the link on such a coil, it is necessary to control the position of the arms of the sets. Particularly in the case of a monospace winding of the link on the coil, it is necessary that:
  • each set of arms has a symmetry of revolution about an axis of rotation of the mandrel,
  • the spacing between the proximal ends (ie close to the mandrel) of the arm assemblies is constant, and
  • the distance between the distal ends (ie remote from the mandrel) of the arm assemblies is constant.

Un autre inconvénient de ce type de bobine concerne les difficultés d'alignement des secteurs de la virole les uns par rapport aux autres. En effet, ce type de bobine ne permet pas de réaliser des viroles présentant la forme d'un cercle parfait dans lequel les faces externes des secteurs successifs sont parfaitement ajustées. Ceci est d'autant plus vrai pour des bobines de grand diamètre (i.e. supérieur ou égale à 2 mètres). Or une telle qualité d'alignement des faces externes des secteurs adjacents est nécessaire pour limiter les risques de dégradation du lien à enrouler/dérouler de la bobine lors de la mise en rotation de celle-ci.Another disadvantage of this type of coil relates to the difficulties of alignment of the sectors of the shell relative to each other. Indeed, this type of coil does not allow to make ferrules having the shape of a perfect circle in which the outer faces of the successive sectors are perfectly adjusted. This is especially true for coils of large diameter (i.e. greater than or equal to 2 meters). However, such quality of alignment of the outer faces of the adjacent sectors is necessary to limit the risk of degradation of the link to wind / unroll the coil during the rotation thereof.

Enfin, l'utilisation d'une languette combinée aux équerres ne permet pas de récupérer des problèmes de vrillage des longerons, consécutifs au roulage de la bobine.Finally, the use of a tongue combined with the brackets does not recover twisting problems of the side members, following the rolling of the coil.

Ainsi à l'heure actuelle, il n'existe aucun moyen satisfaisant pour permettre un assemblage des viroles d'une bobine n'induisant pas de déformation de celles-ci.Thus, at present, there is no satisfactory way to allow assembly of the ferrules of a coil not inducing deformation thereof.

Un but de la présente invention est de proposer une bobine permettant de pallier au moins l'un des inconvénients précités.An object of the present invention is to provide a coil for overcoming at least one of the aforementioned drawbacks.

RESUME DE L'INVENTIONSUMMARY OF THE INVENTION

A cet effet on propose une bobine pour l'enroulement et le déroulement d'un lien tel qu'un câble ou similaire, comprenant :

  • un mandrin central comportant deux faces opposées perpendiculaires à un axe de rotation de la bobine,
  • deux ensembles de bras montés chacun sur une face opposée respective du mandrin central,
  • deux viroles, chaque virole étant fixée aux extrémités distales des bras d'un ensemble de bras respectif, chaque virole comprenant une pluralité de secteurs en forme de portion de virole, chaque secteur incluant un longeron tubulaire,
la bobine étant remarquable en ce que chaque virole comporte au moins un secteur final incluant :
  • un longeron tubulaire destiné à venir en butée contre un longeron tubulaire d'un secteur adjacent selon un plan de jonction passant par l'axe de rotation de la bobine,
  • un élément de guidage rétractable, ledit élément de guidage étant apte à se déplacer perpendiculairement au plan de jonction entre :
    • ▪ une position escamotée où l'élément de guidage s'étend à l'intérieur du longeron du secteur final, et
    • ▪ une position dégagée où l'élément de guidage s'étend partiellement à l'extérieur du longeron du secteur final pour maintenir en position le secteur final et le secteur adjacent l'un par rapport à l'autre.
For this purpose, a coil is proposed for winding and unwinding a link such as a cable or the like, comprising:
  • a central mandrel comprising two opposite faces perpendicular to an axis of rotation of the coil,
  • two sets of arms each mounted on a respective opposite face of the central mandrel,
  • two ferrules, each ferrule being attached to the distal ends of the arms of a respective arm assembly, each ferrule comprising a plurality of ferrule portion shaped sectors, each sector including a tubular spar,
the coil being remarkable in that each ferrule comprises at least one final sector including:
  • a tubular spar intended to abut against a tubular spar of an adjacent sector along a junction plane passing through the axis of rotation of the spool,
  • a retractable guide element, said guide element being able to move perpendicularly to the junction plane between:
    • A retracted position where the guide element extends inside the spar of the final sector, and
    • ▪ an unobstructed position where the guiding element extends partially outside the spar of the final sector to maintain in position the final sector and the adjacent sector relative to each other.

Dans la suite de la présente description, on définira la « largeur » de l'élément de guidage relativement à une première dimension parallèle à l'axe de rotation de la bobine et au plan de jonction des secteurs adjacents. On définira la « hauteur » de l'élément de guidage relativement à une deuxième dimension parallèle à une direction radiale de la bobine (i.e. une deuxième dimension perpendiculaire à l'axe de rotation et parallèle au plan de jonction). Enfin, on définira la « longueur » de l'élément de guidage relativement à une troisième dimension parallèle à une direction de déplacement de l'élément de guidage entre les positions escamotée et dégagée.In the remainder of this description, the "width" of the guide element will be defined relative to a first dimension parallel to the axis of rotation of the coil and to the junction plane of the adjacent sectors. The "height" of the guide element will be defined relative to a second dimension parallel to a radial direction of the coil (ie a second dimension perpendicular to the axis of rotation and parallel to the junction plane). Finally, the "length" of the guide element will be defined relative to a third dimension parallel to a direction of movement of the guide element between the retracted and unhooked positions.

Les longerons peuvent avoir différentes formes. Par exemple, chaque longeron peut être circulaire, carré ou rectangulaire en section.The spars can have different shapes. For example, each spar may be circular, square or rectangular in section.

Dans tous les cas, la bobine comprend au moins un secteur final incluant l'élément de guidage rétractable. Ceci permet de limiter la déformation de la virole lors de la mise en place du dernier secteur, à savoir le secteur final.In all cases, the coil comprises at least one end sector including the retractable guide element. This limits the deformation of the ferrule during the establishment of the last sector, namely the final sector.

Dans certains modes de réalisation, chaque virole comprend un unique secteur final, les autres secteurs étant du type de l'art antérieur (c'est-à-dire incluant un longeron muni d'une languette fixe destinée à être enfichée dans un longeron d'un secteur adjacent).In some embodiments, each ferrule comprises a single final sector, the other sectors being of the type of the prior art (that is to say including a spar provided with a fixed tongue intended to be plugged into a spar d an adjacent area).

Dans d'autres modes de réalisation, chaque secteur d'une virole est un secteur final. En d'autres termes, chaque secteur d'une virole comprend un élément de guidage rétractable.In other embodiments, each sector of a ferrule is a final sector. In other words, each sector of a ferrule comprises a retractable guiding element.

Des aspects préférés mais non limitatifs de la bobine selon l'invention sont décrits ci-dessous.Preferred but non-limiting aspects of the coil according to the invention are described below.

Avantageusement, une largeur de l'élément de guidage - selon la première dimension parallèle à l'axe de rotation et au plan de jonction - peut être supérieure ou égale à la distance selon la première dimension entre les faces internes des longerons adjacents, de sorte que l'élément de guidage vient en contact selon la première dimension avec les faces internes des longerons adjacents, lorsque ledit élément de guidage est en position dégagée.Advantageously, a width of the guide element - according to the first dimension parallel to the axis of rotation and to the junction plane - may be greater than or equal to the distance along the first dimension between the inner faces of the adjacent spars, so that the guide member comes into contact with the inner faces of the adjacent longitudinal members in the first dimension when said guide member is in the disengaged position.

Ainsi, la largeur de l'élément de guidage rétractable est adaptée à l'écartement entre les faces internes du longeron selon la première dimension. Ceci permet un alignement latéral des secteurs adjacents l'un par rapport à l'autre. Ainsi, dans le cas de longerons de section carrée ou rectangulaire, ceci permet d'assurer une bonne qualité de l'ajustement des faces externes latérales (i.e. faces des longerons s'étendant dans des plans perpendiculaires à l'axe de rotation de la bobine) des longerons de secteurs adjacents.Thus, the width of the retractable guide element is adapted to the spacing between the inner faces of the spar according to the first dimension. This allows lateral alignment of the adjacent sectors with respect to each other. Thus, in the case of longitudinal members of square or rectangular section, this ensures a good quality of the adjustment of the external lateral faces (ie sides of the longitudinal members extending in planes perpendicular to the axis of rotation of the coil ) side members of adjacent sectors.

Par ailleurs, une hauteur de l'élément de guidage - selon la deuxième dimension parallèle à une direction radiale de la bobine - est supérieure ou égale à la distance selon la deuxième dimension entre les faces internes des longerons adjacents, de sorte que l'élément de guidage vient en contact selon la deuxième dimension avec les faces internes des longerons adjacents lorsque ledit élément de guidage est en position dégagée. Ceci permet d'assurer un alignement radial des secteurs adjacents. Ainsi dans le cas de longerons de section carrée ou rectangulaire, ceci permet d'assurer une bonne qualité de l'ajustement des faces externes supérieures (i.e. faces des longerons les plus éloignées de l'axe de rotation de la bobine) et inférieures (i.e. faces des longerons les plus proches de l'axe de rotation de la bobine) des longerons de secteurs adjacents.Furthermore, a height of the guide element - in the second dimension parallel to a radial direction of the coil - is greater than or equal to the distance along the second dimension between the inner faces of the adjacent spars, so that the element guide means engages in the second dimension with the inner faces of the adjacent beams when said guide member is in the disengaged position. This ensures radial alignment of adjacent areas. Thus in the case of longitudinal members of square or rectangular section, this ensures a good quality of the adjustment of the upper outer faces (ie sides of the longitudinal members furthest from the axis of rotation of the coil) and lower (ie sides of the spars closest to the axis of rotation of the spool) of the side members of adjacent sectors.

Le fait d'aligner radialement les secteurs constituant la virole permet d'obtenir une virole dont le centre de gravité est localisé sur l'axe de la bobine, ce qui facilite sa mise en rotation et évite d'éventuelles variations intempestives de sa vitesse angulaire lorsque la bobine est en mouvement.Radially aligning the sectors constituting the shell makes it possible to obtain a shell whose center of gravity is located on the axis of the coil, which facilitates its rotation and avoids any untimely variations in its angular velocity. when the coil is moving.

De préférence, l'élément de guidage comprend un élément de préhension pour l'application d'une force de sorte à induire le déplacement de l'élément de guidage entre la position rétractée et la position dégagée. Ceci permet de faciliter la mise en place du dernier secteur par l'utilisateur par la fourniture d'un élément de préhension dont l'actionnement induit le déplacement de l'élément de guidage entre les positions escamotée et dégagée. Les moyens pour l'application d'une force comprennent par exemple une patte s'étendant en saillie d'une ouverture ménagée dans le longeron du secteur final. Cette patte peut comprendre un élément de couplage - tel qu'une ouverture traversante ou un alésage - destiné à coopérer avec un élément de serrage - tel qu'une tige filetée ou une vis et un écrou - connecté à une pièce d'appui fixée au secteur adjacent, le serrage de l'élément de serrage induisant l'application d'une sollicitation sur les secteurs adjacents tendant à maintenir les longerons des secteurs adjacents en butée l'un contre l'autre. Ceci permet d'assurer un bon contact en butée entre deux secteurs adjacents.Preferably, the guide member comprises a gripping member for applying a force to induce movement of the guide member between the retracted position and the disengaged position. This facilitates the establishment of the last sector by the user by providing a gripping element whose actuation induces the displacement of the guide element between the retracted and unobstructed positions. The means for the application of a force comprise for example a lug extending projecting from an opening in the spar of the final sector. This tab may comprise a coupling element - such as a through opening or a bore - intended to cooperate with a clamping element - such as a threaded rod or a screw and a nut - connected to a support piece fixed to the adjacent sector, the tightening of the clamping element inducing the application of a stress on adjacent sectors tending to maintain the side members of the adjacent sectors abut against each other. This ensures good abutment contact between two adjacent sectors.

L'élément de guidage peut être composé de plusieurs pièces coopérant pour former l'élément de guidage. Ceci permet de faciliter la mise en place de l'élément de guidage dans le longeron du secteur final. Notamment, le fait que l'élément de guidage soit composé de plusieurs pièces permet d'insérer celui-ci dans une ouverture ménagée dans le longeron du secteur final, les dimensions de l'ouverture étant inférieures aux dimensions de l'élément de guidage une fois celui-ci assemblé.The guide element may be composed of several cooperating parts to form the guide element. This facilitates the introduction of the guide element in the spar of the final sector. In particular, the fact that the guide element is composed of several parts allows to insert it into an opening in the spar of the final sector, the dimensions of the opening being smaller than the dimensions of the guide member a once this one assembled.

L'élément de guidage peut par exemple comprendre une (ou plusieurs) lame(s) rétractable(s) s'étendant (chacune) globalement dans un plan parallèle à l'axe de rotation lorsque l'élément de guidage est en position dégagée. Dans ce cas, la largeur de la lame selon la première dimension est supérieure ou égale à la distance entre les faces internes des longerons adjacents selon la première dimension. Ceci permet d'assurer un alignement latéral des secteurs adjacents de la virole.The guide member may for example comprise one (or more) retractable blade (s) extending (each) generally in a plane parallel to the axis of rotation when the guide member is in the disengaged position. In this case, the width of the blade according to the first dimension is greater than or equal to the distance between the inner faces of the adjacent beams according to the first dimension. This ensures lateral alignment of adjacent sectors of the shell.

L'élément de guidage peut également comprendre au moins une plaque rétractable s'étendant dans un plan sensiblement perpendiculaire au plan de la lame, la plaque et/ou la lame incluant des moyens d'insertion pour permettre l'insertion de la lame dans la plaque. Dans un mode de réalisation, les moyens d'insertion consistent en une fente ménagée dans la plaque, et destinée à recevoir la lame rétractable. Dans un autre mode de réalisation, les moyens d'insertion consistent en une fente ménagée dans la lame, et destinée à recevoir la plaque. Dans un autre mode de réalisation encore, les moyens d'insertion consistent en une première fente ménagée dans la lame et une deuxième fente ménagée dans la plaque, les fentes s'étendant sur une portion seulement de la lame et de la plaque.The guide member may also comprise at least one retractable plate extending in a plane substantially perpendicular to the plane of the blade, the plate and / or the blade including insertion means to allow insertion of the blade into the plate. In one embodiment, the insertion means consist of a slot formed in the plate, and intended to receive the retractable blade. In another embodiment, the insertion means consist of a slot formed in the blade, and intended to receive the plate. In yet another embodiment, the insertion means comprises a first slot in the blade and a second slot in the plate, the slots extending over only a portion of the blade and the plate.

Dans tous les cas, les moyens d'insertion permettent d'assurer le maintien en position de la lame relativement à la plaque.In all cases, the insertion means allow to maintain the position of the blade relative to the plate.

Comme il sera décrit plus en détail dans la suite, la plaque peut s'étendre globalement dans un plan sensiblement perpendiculaire à l'axe de rotation lorsque ledit élément de guidage est en position dégagée. La hauteur de la plaque selon la deuxième dimension est alors supérieure ou égale à la distance entre les faces internes des longerons adjacents selon la deuxième dimension.As will be described in more detail below, the plate may extend generally in a plane substantially perpendicular to the axis of rotation when said guide member is in the disengaged position. The height of the plate according to the second dimension is then greater than or equal to the distance between the internal faces of the adjacent spars according to the second dimension.

Avantageusement, la plaque rétractable peut être en forme de U de sorte à constituer deux branches s'étendant dans des plans parallèles et incluant chacune une fente. Ceci permet d'assurer un blocage angulaire des secteurs adjacents. Ceci limite les risques de vrillage de la virole.Advantageously, the retractable plate may be U-shaped so as to constitute two branches extending in parallel planes and each including a slot. This ensures angular blocking of adjacent sectors. This limits the risk of kinking the ferrule.

Dans le cas de longerons de section carré ou rectangulaire, la position de la (ou des) lame(s) relativement à la (ou aux) plaque(s) peut être choisie de sorte à bénéficier des propriétés élastiques des parois latérales des longerons. Notamment, la lame et la plaque peuvent être agencées de sorte que la lame s'étende dans un plan situé entre 1/3 et 2/3 de la hauteur de la plaque lorsque l'élément de guidage est assemblé.In the case of longitudinal members of square or rectangular section, the position of the (or) blade (s) relative to the (or) plate (s) can be chosen so as to benefit from the elastic properties of the side walls of the longitudinal members. In particular, the blade and the plate can be arranged so that the blade extends in a plane between 1/3 and 2/3 of the height of the plate when the guide element is assembled.

De même la position de la (ou des) plaque(s) relativement à la (ou aux) lame(s) peut être choisie de sorte à bénéficier des propriétés élastiques des parois supérieure et inférieure des longerons. Notamment, la lame et la plaque peuvent être agencées de sorte que la plaque s'étende dans un plan situé entre 1/10 et 1/3 de la largeur de la lame lorsque l'élément de guidage est assemblé.Similarly, the position of the (or) plate (s) relative to the (or) blade (s) can be chosen so as to benefit from the elastic properties of the upper and lower walls of the longitudinal members. In particular, the blade and the plate can be arranged so that the plate extends in a plane between 1/10 and 1/3 of the width of the blade when the guide element is assembled.

En profitant de l'élasticité des parois des longerons (latérales et/ou supérieure et inférieure), il devient possible d'augmenter la tolérance sur le dimensionnement des pièces (par exemple la lame et la (ou les) plaque(s)) constituant l'élément de guidage.By taking advantage of the elasticity of the walls of the longitudinal members (lateral and / or upper and lower), it becomes possible to increase the tolerance on the dimensioning of the parts (for example the blade and the (or the) plate (s)) constituting the guide element.

Ainsi, l'élément de guidage d'un secteur peut comprendre au moins quatre points d'appui destinés à venir en contact avec des faces internes distinctes d'un longeron de secteur adjacent lorsque l'élément de guidage est dans la position dégagée.Thus, the guide element of a sector may comprise at least four support points intended to come into contact with distinct internal faces of an adjacent sector spar when the guide element is in the disengaged position.

On entend dans le cadre de la présente invention, par « point d'appui » une surface continue de l'élément de guidage destinée à venir en contact avec une face interne d'un longeron de secteur adjacent.Within the scope of the present invention, the term "fulcrum" means a continuous surface of the guide element intended to come into contact with an inner face of an adjacent sector spar.

Dans le mode de réalisation illustré aux figures 6 à 12 (qui sera décrit plus en détails dans la suite), l'élément de guidage comprend six points d'appuis destinés à venir en contact avec les faces internes du longeron de secteur adjacent dans la position dégagée. Ceci permet d'une part d'assurer un bon alignement des secteurs adjacents et d'autre part de limiter les risques de vrillage des secteurs adjacents.In the embodiment illustrated in Figures 6 to 12 (Which will be described in more detail later), the guide element comprises six points of support intended to come into contact with the inner faces of the adjacent sector spar in the disengaged position. This allows on the one hand to ensure proper alignment of adjacent sectors and on the other hand to limit the risk of twisting adjacent sectors.

BREVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF THE FIGURES

D'autres caractéristiques, buts et avantages de la présente invention ressortiront encore de la description qui suit, laquelle est purement illustrative et non limitative et doit être lue au regard des dessins annexés sur lesquels :

  • les figures 1 et 2 illustrent des viroles de l'art antérieur,
  • les figures 3 et 4 sont des représentations schématiques d'une bobine de face et de profil,
  • la figure 5 est une vue en perspective d'une pièce d'appui d'une virole,
  • les figures 6 à 12 illustrent différentes vues en perspective des extrémités de deux secteurs adjacents d'une virole et d'un élément de guidage associé permettant leur assemblage,
  • les figures 13 et 14 illustrent un mode de réalisation d'un élément de guidage.
Other characteristics, objects and advantages of the present invention will emerge from the description which follows, which is purely illustrative and nonlimiting and should be read with reference to the appended drawings in which:
  • the Figures 1 and 2 illustrate ferrules of the prior art,
  • the Figures 3 and 4 are schematic representations of a coil of face and profile,
  • the figure 5 is a perspective view of a support piece of a ferrule,
  • the Figures 6 to 12 illustrate different perspective views of the ends of two adjacent sectors of a ferrule and an associated guide element allowing their assembly,
  • the Figures 13 and 14 illustrate an embodiment of a guide element.

DESCRIPTION DETAILLEEDETAILED DESCRIPTION

En référence aux figures, la bobine 1 telle que représentée comporte :

  • un mandrin central 10, et
  • deux ensembles de bras latéraux 20 semblables l'un à l'autre, et destinés chacun à jouer le rôle d'une joue guidant le lien à enrouler/dérouler, chaque bras étant relié au mandrin par une extrémité proximale,
  • deux viroles 30 associées chacune à un ensemble de bras respectif et destinées à rigidifier la structure de la bobine, chaque bras d'un ensemble étant relié à sa virole associée par une extrémité distale.
With reference to the figures, the coil 1 as represented comprises:
  • a central mandrel 10, and
  • two sets of lateral arms 20 similar to each other, and each intended to act as a cheek guiding the link to be wound / unrolled, each arm being connected to the mandrel by a proximal end,
  • two ferrules 30 each associated with a respective arm assembly and intended to stiffen the structure of the coil, each arm of an assembly being connected to its associated ferrule by a distal end.

La bobine comprend également un support 40 s'étendant entre les ensembles de bras latéraux 20 pour former une surface portante du lien.The coil also includes a support 40 extending between the side arm assemblies 20 to form a bearing surface of the link.

1. Mandrin 1. Chuck

Le mandrin 10 comporte deux faces circulaires opposées 11, 12 et une face latérale. Dans le mode de réalisation illustré aux figures 3 et 4, le mandrin 10 présente une surface d'appui cylindrique. Plus précisément, le mandrin 10 est un disque d'épaisseur adaptée au lien à enrouler/dérouler.The mandrel 10 has two opposite circular faces 11, 12 and a side face. In the embodiment illustrated in Figures 3 and 4 the mandrel 10 has a cylindrical bearing surface. More specifically, the mandrel 10 is a disk of thickness adapted to the link to be wound / unrolled.

Le mandrin 10 peut comporter un tube s'étendant le long de son axe de révolution et formant l'axe de rotation 13 de la bobine 1.The mandrel 10 may comprise a tube extending along its axis of revolution and forming the axis of rotation 13 of the coil 1.

Le mandrin 10 peut comporter des tiges filetées montées à la périphérie de chaque face circulaire 11, 12 pour permettre la fixation des ensembles de bras latéraux 20 en utilisant par exemple des écrous. Ces tiges filetées peuvent être solidaires du mandrin 10 ou être fixées sur le mandrin 10, par exemple par vissage dans des ouvertures traversantes filetées ménagées dans le mandrin 10.The mandrel 10 may comprise threaded rods mounted at the periphery of each circular face 11, 12 to allow the attachment of the lateral arm assemblies 20 using for example nuts. These threaded rods can be secured to the mandrel 10 or be fixed to the mandrel 10, for example by screwing into threaded through openings formed in the mandrel 10.

2. Ensemble de bras 2. Set of arms

Chaque ensemble de bras 20 comporte une pluralité de bras 21 s'étendant radialement depuis le mandrin 10. Ces bras 21 sont par exemple en métal. Dans le mode de réalisation illustré aux figures 3 et 4, la bobine 1 comprend trente bras 21.Each arm assembly 20 has a plurality of arms 21 extending radially from the mandrel 10. These arms 21 are for example metal. In the embodiment illustrated in Figures 3 and 4 the coil 1 comprises thirty arms 21.

Chaque bras 21 comprend une extrémité proximale 22 proche du mandrin 10 et une extrémité distale 23 éloignée du mandrin 10. Les bras 21 sont couplés au mandrin 10 par leurs extrémités proximales 22.Each arm 21 comprises a proximal end 22 close to the mandrel 10 and a distal end 23 remote from the mandrel 10. The arms 21 are coupled to the mandrel 10 by their proximal ends 22.

Les extrémités distales 23 des bras 21 de chaque ensemble de bras 20 sont fixées à une virole 30 respective illustrée à la figure 3. Cette virole peut être métallique. La virole 30 permet de renforcer la structure de la bobine.The distal ends 23 of the arms 21 of each arm assembly 20 are attached to a respective ferrule 30 illustrated in FIG. figure 3 . This ferrule may be metallic. The ferrule 30 reinforces the structure of the coil.

3. Virole 3. Ferrule

Chaque virole 30 est composée d'une pluralité de secteurs 31 en portion de cercle et dont la juxtaposition permet d'obtenir la virole 30. Le fait que la virole 30 soit composée de plusieurs secteurs juxtaposables permet de réduire l'encombrement de la bobine une fois celle-ci démontée.Each ferrule 30 is composed of a plurality of sectors 31 in a portion of a circle and whose juxtaposition makes it possible to obtain the ferrule 30. The fact that the ferrule 30 is composed of several juxtaposable sectors makes it possible to reduce the bulk of the coil. once this one dismounted.

En référence à la figure 3, la bobine peut par exemple comprendre dix secteurs 31 en forme de portion de cercle. Chaque secteur 31 permet de relier les extrémités distales 23 de trois bras 21 successifs, les différents secteurs 31 étant juxtaposés et fixés entre eux pour former la virole 30.With reference to the figure 3 , the coil may for example comprise ten sectors 31 in the form of a portion of a circle. Each sector 31 makes it possible to connect distal ends 23 of three successive arms 21, the different sectors 31 being juxtaposed and fixed together to form the ferrule 30.

En référence à la figure 6, chaque secteur 31 comprend un longeron 310 tubulaire incurvé, par exemple de section rectangulaire. L'une des extrémités du secteur 31 comprend une pièce d'appui 311 fixée sur une face externe de la paroi supérieure 3100 du longeron 310. L'autre des extrémités du secteur 31 comprend un élément de guidage rétractable 312, 313 - qui sera décrit plus en détail dans la suite.With reference to the figure 6 each sector 31 comprises a curved tubular spar 310, for example of rectangular section. One of the ends of the sector 31 comprises a support piece 311 fixed on an outer face of the upper wall 3100 of the spar 310. The other end of the sector 31 comprises a retractable guide element 312, 313 - which will be described in more detail later.

3.1. Pièce d'appui 3.1. Support piece

La pièce d'appui 311 est destinée à être connectée à l'élément de guidage 312, 313 d'un secteur adjacent par l'intermédiaire d'un élément de serrage - tel qu'une vis 314 associée à un écrou 315 - permettant de fixer ensemble deux secteurs adjacents.The support piece 311 is intended to be connected to the guide element 312, 313 of an adjacent sector by means of a clamping element - such as a screw 314 associated with a nut 315 - making it possible to fix together two adjacent sectors.

Le serrage de la pièce d'appui 311 et de l'élément de guidage 312, 313 par l'intermédiaire de l'élément de serrage 314, 315 permet d'appliquer une sollicitation tangentielle sur les secteurs adjacents tendant à maintenir les longerons 310 des secteurs 31 adjacents en butée l'un contre l'autre.The clamping of the support piece 311 and the guide element 312, 313 through the clamping element 314, 315 makes it possible to apply a tangential stress on the adjacent sectors tending to maintain the longitudinal members 310 of the adjacent sectors 31 abutting against each other.

Dans le mode de réalisation illustré à la figure 5, la pièce d'appui 311 est une équerre métallique repliée selon trois lignes de pliage 3113 de sorte à définir :

  • une base 3110 destinée à être plaquée contre la paroi supérieure 3100 du longeron 310,
  • un renfort 3111 s'étendant perpendiculairement à la base 3110, le renfort 3111 s'étendant parallèlement aux parois latérales 3101 du longeron 310 lorsque l'équerre est en position sur le longeron, et
  • une portion d'accrochage 3112 s'étendant perpendiculairement à la base 3110 et au renfort 3111, la portion d'accrochage 3112 étant localisée à l'extrémité du longeron lorsque l'équerre est en position sur le longeron.
In the embodiment illustrated in figure 5 , the support piece 311 is a metal bracket folded along three fold lines 3113 so as to define:
  • a base 3110 intended to be pressed against the upper wall 3100 of the spar 310,
  • a reinforcement 3111 extending perpendicularly to the base 3110, the reinforcement 3111 extending parallel to the side walls 3101 of the spar 310 when the bracket is in position on the spar, and
  • an attachment portion 3112 extending perpendicular to the base 3110 and the reinforcement 3111, the attachment portion 3112 being located at the end of the spar when the bracket is in position on the spar.

La base 3110 comprend deux trous 3114 pour permettre la fixation de la pièce d'appui 311 sur la paroi supérieure 3100 du longeron 310. La portion d'accrochage 3112 comprend une lumière 3115, éventuellement taraudée pour le passage de l'élément de serrage 314, 315 afin de joindre la pièce d'appui 311 et l'élément de guidage 312, 313 du secteur adjacent.The base 3110 comprises two holes 3114 to allow attachment of the support piece 311 on the upper wall 3100 of the spar 310. The attachment portion 3112 comprises a light 3115, possibly threaded for the passage of the clamping element 314 , 315 to join the support piece 311 and the guide element 312, 313 of the adjacent sector.

3.2. Elément de guidage 3.2. Guide element

L'élément de guidage rétractable 312, 313 permet le maintien en position - notamment latéralement - des secteurs adjacents. L'élément de guidage est destiné à être inséré au niveau de l'extrémité du longeron opposée à l'extrémité sur laquelle est fixée la pièce d'appui 311.The retractable guide element 312, 313 allows the holding in position - particularly laterally - of adjacent sectors. The guide element is intended to be inserted at the end of the spar opposite the end on which the support piece 311 is fixed.

Dans le mode de réalisation illustré à la figure 6, l'élément de guidage 312, 313 est composé de deux pièces distinctes coopérant entre elles. Plus précisément, l'élément de guidage 312,313 comprend une première pièce 312 et une deuxième pièce 313 destinées à être assemblées pour former l'élément de guidage.In the embodiment illustrated in figure 6 , the guide element 312, 313 is composed of two separate parts cooperating with each other. Specifically, the guide member 312,313 includes a first piece 312 and a second piece 313 to be assembled to form the guide member.

Ceci permet de faciliter l'insertion de l'élément de guidage 312, 313 au niveau de l'extrémité du longeron opposée à l'extrémité sur laquelle est fixée la pièce d'appui 311. En effet, la largeur et la hauteur de l'élément de guidage - une fois les pièces le composant assemblées - peuvent être supérieures ou égales respectivement à la distance entre les faces internes des parois latérales du longeron d'une part, et à la distance entre les faces internes des parois supérieure et inférieure 3100, 3102 du longeron 310 d'autre part.This facilitates the insertion of the guide element 312, 313 at the end of the spar opposite the end on which the support piece 311 is fixed. Indeed, the width and the height of the the guide element - once the component parts have been assembled - may be greater than or equal to the distance between the inner faces of the side walls of the spar on the one hand, and the distance between the inner faces of the upper and lower walls 3100 respectively 3102 of the spar 310 on the other hand.

La première pièce 312 est insérée au niveau de l'extrémité tubulaire du longeron, tandis que la deuxième pièce 313 est insérée au travers d'une ouverture 3103 ménagée dans la paroi supérieure 3100 du longeron 310, et dont la largeur est fonction de la largeur de la deuxième pièce 313.The first piece 312 is inserted at the tubular end of the spar, while the second piece 313 is inserted through an opening 3103 formed in the upper wall 3100 of the spar 310, and whose width is a function of the width. of the second room 313.

Avantageusement, cette largeur de l'ouverture 3103 ménagée dans la paroi supérieure 3100 du longeron 310 est inférieure à la distance entre les faces internes des parois latérales 3101 du longeron 310. Ceci permet de ne pas fragiliser le longeron 310.Advantageously, this width of the opening 3103 formed in the upper wall 3100 of the spar 310 is smaller than the distance between the inner faces of the side walls 3101 of the spar 310. This makes it possible not to weaken the spar 310.

3.2.1. Première pièce 312 3.2.1. First piece 312

La première pièce 312 présente une forme en L. Cette première pièce 312 comprend une lame 3120 s'étendant globalement dans un plan. La première pièce 312 est déplaçable selon une direction de déplacement D entre :

  • une position escamotée où la lame 3120 s'étend à l'intérieur du longeron 310, et
  • une position dégagée où une portion de lame 3120 s'étend à l'extérieur du longeron 310, au niveau de l'extrémité du longeron 310.
The first piece 312 has an L shape. This first piece 312 comprises a blade 3120 extending generally in a plane. The first piece 312 is movable in a direction of displacement D between:
  • a retracted position where the blade 3120 extends inside the spar 310, and
  • an unobstructed position where a blade portion 3120 extends outside the spar 310, at the end of the spar 310.

Cette portion de lame 3120 (s'étendant vers l'extérieur dans la position dégagée) est destinée à pénétrer à l'intérieur d'un longeron 310 d'un secteur 31 adjacent lors de l'assemblage des différents secteurs 31 pour former la virole 30. L'extrémité de la portion de lame - s'étendant à l'extérieur du longeron dans la position dégagée - comprend un biseau 3121 de sorte à faciliter son insertion dans le longeron du secteur adjacent.This blade portion 3120 (extending outwards in the disengaged position) is intended to penetrate inside a spar 310 of an adjacent sector 31 during the assembly of the different sectors 31 to form the ferrule 30. The end of the blade portion - extending outwardly of the spar in the disengaged position - includes a bevel 3121 so as to facilitate its insertion into the spar of the adjacent sector.

La largeur de la lame rétractable 3120 est supérieure ou égale à la distance entre les faces internes des parois latérales 3101 du longeron 310. Ceci permet d'assurer un alignement latéral des secteurs 31 adjacents de la virole 30.The width of the retractable blade 3120 is greater than or equal to the distance between the inner faces of the side walls 3101 of the spar 310. This makes it possible to ensure lateral alignment of the adjacent sectors 31 of the ferrule 30.

Lorsque le longeron 310 est de section carrée ou rectangulaire, la lame 3120 est de préférence destinée à être positionnée à une distance de la paroi inférieure du longeron comprise entre 1/3 et 2/3 de la distance entre les faces internes des parois supérieure et inférieure du longeron. Ceci permet d'augmenter les tolérances relatives à la largeur de la lame en profitant notamment du phénomène de flexion des parois latérales du longeron.When the spar 310 is of square or rectangular section, the blade 3120 is preferably intended to be positioned at a distance from the lower wall of the spar of between 1/3 and 2/3 of the distance between the inner faces of the upper and lower walls. lower spar. This makes it possible to increase the tolerances relative to the width of the blade by taking advantage in particular of the bending phenomenon of the side walls of the spar.

La première pièce 312 comprend également une langue 3122 s'étendant perpendiculairement à la lame 3120 et incluant une rampe 3123 à son extrémité libre. Cette rampe 3123 est par exemple un retour obtenu par pliage.The first piece 312 also comprises a tongue 3122 extending perpendicularly to the blade 3120 and including a ramp 3123 at its free end. This ramp 3123 is for example a return obtained by folding.

Dans le mode de réalisation illustré à la figure 6, la lame 3120 et la langue 3122 sont d'un seul tenant. Elles sont obtenues par pliage et découpage d'une plaque métallique. Les effets techniques associés à la langue ainsi qu'à la rampe seront décrits plus en détail dans la partie intitulée « principe de fonctionnement ».In the embodiment illustrated in figure 6 , the blade 3120 and the tongue 3122 are in one piece. They are obtained by folding and cutting a metal plate. The technical effects associated with the language and the ramp will be described in more detail in the section entitled "Principle of Operation".

3.2.2. Deuxième pièce 313 3.2.2. Second piece 313

La deuxième pièce de l'élément de guidage comprend une plaque rétractable 3130, éventuellement à fente 3131. La fente 3131 de la plaque rétractable 3130 est destinée à recevoir la lame 3120 de la première pièce 312 pour assurer un blocage de la première pièce 312 dans la deuxième pièce 313.The second part of the guide element comprises a retractable plate 3130, possibly with a slot 3131. The slot 3131 of the retractable plate 3130 is intended to receive the blade 3120 of the first part 312 to ensure a locking of the first piece 312 in the second room 313.

La deuxième pièce 313 est déplaçable selon la direction de déplacement D entre les positions escamotée et dégagée. Dans la position dégagée, une portion de la plaque 3130 s'étend à l'extérieur du longeron 310, au niveau de l'extrémité du longeron 310.The second part 313 is movable in the direction of displacement D between the retracted and unhooked positions. In the disengaged position, a portion of the plate 3130 extends outside the spar 310, at the end of the spar 310.

La portion de plaque 3130 s'étendant vers l'extérieur dans la position dégagée est destinée à pénétrer à l'intérieur d'un longeron 310 d'un secteur 31 adjacent lors de l'assemblage des différents secteurs 31 pour former la virole 30.The plate portion 3130 extending outwards in the disengaged position is intended to penetrate inside a spar 310 of an adjacent sector 31 during the assembly of the different sectors 31 to form the ferrule 30.

L'extrémité de la portion de plaque 3130 peut comprendre un biseau 3132 pour faciliter son insertion dans le longeron 310 du secteur adjacent 31.The end of the plate portion 3130 may include a bevel 3132 to facilitate its insertion into the spar 310 of the adjacent sector 31.

La hauteur de la plaque rétractable 3130 est de préférence supérieure ou égale à la distance entre les faces internes des parois supérieure et inférieure du longeron 310. Ceci permet d'assurer un alignement radial des secteurs adjacents lors du montage de la virole.The height of the retractable plate 3130 is preferably greater than or equal to the distance between the inner faces of the upper and lower walls of the beam 310. This makes it possible to ensure radial alignment of the adjacent sectors during assembly of the shell.

Avantageusement, la plaque rétractable 3130 peut être en forme de U de sorte à constituer deux branches s'étendant dans des plans parallèles et incluant chacune une fente 3131. Ceci permet d'assurer un blocage angulaire des secteurs adjacents lors du montage de la virole 30.Advantageously, the retractable plate 3130 may be U-shaped so as to constitute two branches extending in parallel planes and each including a slot 3131. This makes it possible to ensure angular locking of the adjacent sectors during assembly of the shell 30 .

Dans ce cas, la lame 3120 de la première pièce 312 est destinée à être enfichée dans les fentes 3131. Ceci permet d'assurer un meilleur maintien en position de la lame 3120.In this case, the blade 3120 of the first piece 312 is intended to be plugged into the slots 3131. This ensures better retention in position of the blade 3120.

La deuxième pièce 313 comprend également une patte 3133 s'étendant sensiblement dans un plan perpendiculaire au plan de la plaque rétractable (ou aux plans des branches de la plaque rétractable).The second piece 313 also comprises a tab 3133 extending substantially in a plane perpendicular to the plane of the retractable plate (or to the plane of the branches of the retractable plate).

La deuxième pièce 313 est destinée à être positionnée dans le longeron 310 de sorte que la patte 3133 s'étend à l'extérieur du longeron au travers de l'ouverture 3103 ménagée dans la paroi supérieure 3100 du longeron 310. Cette patte 3133 permet à un utilisateur de déplacer en translation l'élément de guidage 312, 313.The second piece 313 is intended to be positioned in the spar 310 so that the tab 3133 extends outside the spar through the opening 3103 formed in the upper wall 3100 of the spar 310. This lug 3133 allows a user to move the guide member 312, 313 in translation.

La patte 3133 comprend un trou 3135, éventuellement taraudé, pour le passage de l'élément de serrage 314, 315 afin de joindre la pièce d'appui 311 et l'élément de guidage 312, 313 du secteur adjacent.The tab 3133 comprises a hole 3135, possibly tapped, for the passage of the clamping element 314, 315 to join the support piece 311 and the guide element 312, 313 of the adjacent sector.

La patte peut comprendre un (ou plusieurs) rebord(s) formant une (ou des) ailette(s) 3134 pour augmenter sa rigidité de sorte à limiter les risques de flexion de la patte lors du vissage de l'élément de serrage 314, 315. Dans ce cas, chaque ailette 3134 s'étend dans un plan perpendiculaire à la patte, les ailettes étant localisés au niveau des bords périphériques de la patte. Dans une variante de réalisation illustrée aux figures 11 et 12, la longueur et dimensions des ailettes 3134 et leur écartement sont prévus de sorte que les ailettes 3134 de l'élément de guidage viennent en butée contre la portion d'accrochage 3112 lorsque l'élément de guidage 312, 313 est dans la position dégagée. Ceci permet d'obtenir un appui mécanique entre l'élément de guidage et la pièce d'appui 311 lors du serrage de l'élément de serrage. La formation de cet appui mécanique permet d'éviter les risques de pivotement de l'élément de guidage (312, 313) lors du serrage de l'élément de serrage.The lug may comprise one (or more) rims forming a (or) fin (s) 3134 to increase its rigidity so as to limit the risk of bending of the lug during screwing of the clamping element 314, 315. In this case, each fin 3134 extends in a plane perpendicular to the tab, the fins being located at the peripheral edges of the tab. In an embodiment variant illustrated in figures 11 and 12 , the length and dimensions of the fins 3134 and their spacing are provided so that the fins 3134 of the guide member abut against the hooking portion 3112 when the guide member 312, 313 is in the disengaged position. This provides a mechanical support between the guide member and the support piece 311 when tightening the clamping element. The formation of this mechanical support avoids the risk of pivoting of the guide element (312, 313) during tightening of the clamping element.

Plus précisément :

  • la longueur (selon la direction de déplacement de l'élément de guidage) de chaque ailette 3134 est inférieure à la longueur de la plaque 3130, et supérieure à la distance entre la portion d'accrochage 3112 du secteur adjacent et le bord de l'ouverture 3103 le plus proche du secteur adjacent, et
  • l'écartement entre les ailettes 3134 est prévue inférieure à la largeur (selon une direction parallèle à l'axe de rotation de la bobine) de la portion d'accrochage 3112.
More precisely :
  • the length (in the direction of displacement of the guide element) of each fin 3134 is smaller than the length of the plate 3130, and greater than the distance between the portion hook 3112 of the adjacent sector and the edge of the opening 3103 nearest the adjacent sector, and
  • the spacing between the fins 3134 is provided less than the width (in a direction parallel to the axis of rotation of the coil) of the hooking portion 3112.

Dans ce mode de réalisation, l'élément de guidage comporte un sillon 3136 pour permettre le passage des reborts 3134 et de la plaque 3130 de part et d'autre de la paroi supérieure 3100 du longeron lorsque l'élément de guidage est déplacé entre les position rétractées et dégagée.In this embodiment, the guide element comprises a groove 3136 to allow the passage of the rebates 3134 and the plate 3130 on either side of the upper wall 3100 of the spar when the guide element is moved between the position retracted and unobstructed.

Principe de fonctionnementPrinciple of operation

Grâce à l'utilisation d'un élément de guidage tel que celui illustré aux figures 6 à 12, l'assemblage de la virole est facilité.Through the use of a guiding element such as that illustrated in Figures 6 to 12 assembly of the ferrule is facilitated.

En effet, lors du montage de la virole, une opération difficile à mettre en oeuvre concerne l'emboîtement de la languette d'un longeron dans l'ouverture d'un longeron adjacent, cette étape pouvant induire une torsion de la virole du fait des efforts à appliquer sur la virole pour permettre le passage de la languette dans l'ouverture du secteur adjacent.Indeed, during assembly of the ferrule, a difficult operation to implement relates to the interlocking of the tongue of a spar in the opening of an adjacent spar, this step may induce a twisting of the ferrule due to efforts to be applied on the shell to allow the passage of the tongue in the opening of the adjacent sector.

L'utilisation d'un élément de guidage rétractable permet de limiter ce risque. En effet, dans la position escamotée, l'élément de guidage est totalement inclut dans le longeron de son secteur associé de sorte qu'il ne dépasse pas de l'extrémité du longeron. Ainsi, les deux secteurs adjacents peuvent être assemblés en mettant en contact les extrémités des longerons adjacents et en les déplaçant l'un par rapport à l'autre le long d'un plan de jonction de sorte à les aligner l'un avec l'autre.The use of a retractable guiding element makes it possible to limit this risk. Indeed, in the retracted position, the guide member is fully included in the spar of its associated sector so that it does not exceed the end of the spar. Thus, the two adjacent sectors can be assembled by contacting the ends of the adjacent spars and moving them relative to one another along a junction plane so as to align them with each other. other.

Le principe d'assemblage de deux secteurs adjacents de la virole est le suivant.The principle of assembly of two adjacent sectors of the ferrule is as follows.

Dans une première étape, l'élément de guidage 312, 313 est positionné au niveau d'une extrémité de longeron 310 de l'un des secteurs adjacents 31. Plus précisément, l'élément de guidage 312, 313 est installé au niveau de l'extrémité du longeron 310 comportant une ouverture 3103 ménagée dans sa paroi supérieure 3100 (figure 4).In a first step, the guide member 312, 313 is positioned at a spar end 310 of one of the adjacent sectors 31. Specifically, the guide member 312, 313 is installed at end of the spar 310 having an opening 3103 formed in its upper wall 3100 ( figure 4 ).

La deuxième pièce 313 est insérée au niveau de l'ouverture 3103 ménagée dans la paroi supérieure 3100 du longeron 310. Plus précisément, la deuxième pièce est insérée de sorte que la patte 3133 s'étend au travers de l'ouverture 3103 ménagée dans la paroi supérieure 3100 du longeron 310 (figure 5).The second piece 313 is inserted at the opening 3103 formed in the upper wall 3100 of the spar 310. More specifically, the second piece is inserted so that the tab 3133 extends through the opening 3103 formed in the upper wall 3100 of the spar 310 ( figure 5 ).

La première pièce 312 est insérée au niveau de l'extrémité tubulaire du longeron 310. Cette première pièce 312 est insérée de sorte que la langue 3122 soit la plus éloignée de l'extrémité du longeron et s'étende au travers de l'ouverture 3103 ménagée dans la paroi supérieure 3100 du longeron 310 (figure 6).The first piece 312 is inserted at the tubular end of the spar 310. This first piece 312 is inserted so that the tongue 3122 is furthest from the end of the spar and extends through the opening 3103 formed in the upper wall 3100 of the spar 310 ( figure 6 ).

La lame 3120 de la première pièce 312 est insérée dans les fentes 3131 de la deuxième pièce 313 jusqu'à ce que la langue - notamment le retour obtenu par pliage - vienne en butée contre la patte 3133 de la deuxième pièce (figure 7). L'élément de guidage est alors dans la position escamotée.The blade 3120 of the first piece 312 is inserted into the slots 3131 of the second piece 313 until the tongue - in particular the return obtained by folding - comes into abutment against the lug 3133 of the second piece ( figure 7 ). The guide element is then in the retracted position.

Une deuxième étape consiste à assembler les longerons adjacents.A second step is to assemble the adjacent spars.

Les extrémités des longerons adjacents sont alignés l'un par rapport à l'autre de sorte que leurs extrémités soient en contact le long d'un plan de jonction (figure 8).The ends of the adjacent spars are aligned relative to one another so that their ends are in contact along a joining plane ( figure 8 ).

L'élément de guidage 312, 313 est ensuite déplacé en translation en direction du plan de jonction des longerons jusqu'à ce que la rampe vienne en butée contre le bord de l'ouverture 3103, assurant ainsi le blocage de la première pièce et son maintien en position dans le longeron. L'élément de guidage se déplace ainsi de la position escamotée à la position dégagée de sorte que l'élément de guidage s'étende de part et d'autre du plan de jonction des secteurs adjacents (figure 9).The guide element 312, 313 is then moved in translation towards the junction plane of the longitudinal members until the ramp comes into abutment against the edge of the opening 3103, thus ensuring the locking of the first part and its maintaining in position in the spar. The guiding element thus moves from the retracted position to the disengaged position so that the guiding element extends on either side of the junction plane of the adjacent sectors ( figure 9 ).

L'élément de serrage 314, 315 est installé entre la pièce d'appui 311 et la patte 3133 de la deuxième pièce 313.The clamping member 314, 315 is installed between the support piece 311 and the tab 3133 of the second piece 313.

Les deux secteurs adjacents sont alors assemblés.The two adjacent sectors are then assembled.

Le lecteur aura compris que de nombreuses modifications peuvent être apportées à la bobine décrite précédemment sans sortir matériellement des nouveaux enseignements et des avantages décrits ici.The reader will have understood that many modifications can be made to the reel described above without physically going out of the new teachings and advantages described here.

Par exemple, dans la description qui précède, les secteurs d'une virole sont tous identiques et comprennent notamment un élément de guidage rétractable.For example, in the foregoing description, the sectors of a shell are all identical and include in particular a retractable guide element.

En variante, chaque virole pourrait comprendre un unique secteur incluant un élément de guidage rétractable tel que décrit précédemment, les autres secteurs étant du type décrit en référence à l'art antérieur (i.e. longeron incluant une langue). Dans ce cas, le secteur incluant l'élément de guidage rétractable sera avantageusement assemblé aux autres secteurs en dernier afin d'éviter les risques de déformation de la virole lors de la mise en place du dernier secteur.Alternatively, each ferrule could comprise a single sector including a retractable guide element as described above, the other sectors being of the type described with reference to the prior art (i.e. spar including a tongue). In this case, the sector including the retractable guide element will advantageously be assembled to the other sectors last to avoid the risk of deformation of the ferrule during the establishment of the last sector.

Par conséquent, toutes les modifications de ce type sont destinées à être incorporées à l'intérieur de la portée des revendications jointes.Therefore, all such modifications are intended to be incorporated within the scope of the appended claims.

Claims (14)

  1. A coil (1) for winding and unwinding a line such as a cable or the like, comprising:
    - a central mandrel (10) including two opposite faces (11, 12) perpendicular to an axis of rotation (13) of the coil,
    - two arm assemblies (20) each mounted on a respective opposite face of the central mandrel,
    - two ferrules (30), each ferrule being attached to the distal ends (23) of the arms (21) of a respective arm assembly, each ferrule comprising a plurality of sectors (31) shaped as a portion of a circle, each sector including a tubular stringer (310),
    characterized in that each ferrule includes at least one final sector including:
    - a tubular stringer (310) designed to come into abutment against a tubular stringer (310) of an adjoining sector along a junction plane passing through the axis of rotation of the coil,
    - a retractable guiding element (312, 313), said guiding element being capable of moving perpendicularly to the junction plane between:
    ▪ a stowed position where the guiding element extends inside the stringer of the final sector, and
    ▪ a released position where the guiding element extends partially outside the stringer of the final sector to hold the final sector and the adjoining sector in position with respect to one another.
  2. The coil according to claim 1, wherein a width of the guiding element, along a first dimension parallel to the axis of rotation and to the junction plane, is greater than or equal to the distance along the first dimension between the inner faces of the adjoining stringers, so that the guiding element comes into contact along the first dimension with the inner faces of the adjoining stringers when said guiding element is in the released position.
  3. The coil according to either one of claims 1 or 2, wherein the height of the guiding element, along a second dimension parallel to a radial direction of the coil, is greater than or equal to the distance along the second dimension between the inner faces of the adjoining stringers, so that the guiding element comes into contact along the second dimension with the inner faces of the adjoining stringers when said guiding element is in the released position.
  4. The coil according to any one of claims 1 to 3, wherein the guiding element comprises means for applying a force (3133) so as to induce the movement of the guiding element between the stowed position and the released position.
  5. The coil according to claim 4, wherein the means for applying a force comprise a leg protruding from an opening (3103) provided in the stringer of the final sector.
  6. The coil according to claim 5, wherein the leg comprises a coupling element (3135) designed to cooperate with a tensioning element (314, 315) connected to a support part (311) attached to the adjoining sector, the tensioning of the tensioning element (314, 315) inducing the application of a force on the adjoining sectors tending to maintain the stringers (310) of the adjoining sectors abutting one against the other.
  7. The coil according to claim 6, wherein the leg comprises at least one fin (3134) designed to come into abutment against the support part (311) when the guiding element (313) is in the released position.
  8. The coil according to any one of claims 2 to 7, wherein the guiding element comprises at least one retractable blade (3120) extending generally in a plane parallel to the axis of rotation when said guiding element is in the released position, the width of the blade along the first dimension being greater than or equal to the distance between the inner faces of the adjoining stringers along the first dimension.
  9. The coil according to claim 8, wherein the guiding element comprises at least one retractable plate (3130) extending in a plane perpendicular to the plane of the blade, the plate and/or the blade including means of insertion, such as a slot (3131), to allow the insertion of the blade into the plate and/or the plate into the blade.
  10. The coil according to claim 9, wherein the plate (3130) includes a slot (3131) designed to accommodate the retractable blade.
  11. The coil according to claim 3 taken in combination with any one of claims 9 or 10, wherein the plate extends generally in a plane perpendicular to the axis of rotation when said guiding element is in the released position, the height of the plate along the second dimension being greater than or equal to the distance between the inner faces of the adjoining stringers along the second dimension.
  12. The coil according to one of claims 9 to 11, wherein the retractable plate (3130) has a U shape so as to constitute two branches extending in parallel planes and each including a slot (3131).
  13. The coil according to one of claims 8 to 11, wherein the blade extends in a plane situated between 1/3 and 2/3 of the height of the plate when the guiding element is in the released position.
  14. The coil according to one of claims 8 to 12, wherein the plate extends in a plane situated between 1/10 and 1/3 of the width of the blade.
EP14798824.0A 2013-11-14 2014-11-13 Reel with removable ferrule Active EP3068716B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1361118A FR3013162B1 (en) 2013-11-14 2013-11-14 COIL WITH REMOVABLE VIROLE
PCT/EP2014/074428 WO2015071341A1 (en) 2013-11-14 2014-11-13 Coil with removable ferrule

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EP3068716A1 EP3068716A1 (en) 2016-09-21
EP3068716B1 true EP3068716B1 (en) 2018-05-16

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EP14798824.0A Active EP3068716B1 (en) 2013-11-14 2014-11-13 Reel with removable ferrule

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EP (1) EP3068716B1 (en)
CN (1) CN105722777B (en)
ES (1) ES2682325T3 (en)
FR (1) FR3013162B1 (en)
WO (1) WO2015071341A1 (en)

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Publication number Priority date Publication date Assignee Title
FR3098209B1 (en) 2019-07-01 2021-06-04 Conductix Wampfler France COIL FOR WINDING AND UNWINDING A LINK

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Publication number Priority date Publication date Assignee Title
US3652026A (en) * 1969-11-04 1972-03-28 Folke Hildemar Awebro Device for supporting and transporting a cable drum
US5279469A (en) * 1991-12-20 1994-01-18 Hillmar Industries Ltd. Cable winding apparatus and method
CN2309375Y (en) * 1997-09-26 1999-03-03 高文利 Fire retardant decorative movable partition plate
US6260502B1 (en) * 1998-03-31 2001-07-17 Owen Kratz Semi-submersible vessel
CN2863742Y (en) * 2005-12-08 2007-01-31 文登市鑫隆机械厂 modular cable reel
CN201261806Y (en) * 2008-08-14 2009-06-24 张文东 Insulation stand for steel pipe
CN101700842B (en) * 2009-11-20 2011-11-02 中国电力科学研究院 Dismountable all-steel corrugated electric wire delivery drum
CN203283961U (en) * 2013-04-25 2013-11-13 远东电缆有限公司 Detachable cable delivery wire coil

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Also Published As

Publication number Publication date
CN105722777B (en) 2017-05-24
WO2015071341A1 (en) 2015-05-21
FR3013162B1 (en) 2015-12-18
EP3068716A1 (en) 2016-09-21
FR3013162A1 (en) 2015-05-15
ES2682325T3 (en) 2018-09-20
CN105722777A (en) 2016-06-29

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