EP0636567A1 - Collapsible reel - Google Patents

Collapsible reel Download PDF

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Publication number
EP0636567A1
EP0636567A1 EP94401537A EP94401537A EP0636567A1 EP 0636567 A1 EP0636567 A1 EP 0636567A1 EP 94401537 A EP94401537 A EP 94401537A EP 94401537 A EP94401537 A EP 94401537A EP 0636567 A1 EP0636567 A1 EP 0636567A1
Authority
EP
European Patent Office
Prior art keywords
cheeks
parts
drum
articulated elements
reel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94401537A
Other languages
German (de)
French (fr)
Other versions
EP0636567B1 (en
Inventor
Pierre Georges
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.)
Ems Dite Ste
Original Assignee
Ems Dite Ste
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Filing date
Publication date
Application filed by Ems Dite Ste filed Critical Ems Dite Ste
Publication of EP0636567A1 publication Critical patent/EP0636567A1/en
Application granted granted Critical
Publication of EP0636567B1 publication Critical patent/EP0636567B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/22—Constructional details collapsible; with removable parts
    • B65H75/2209—Constructional details collapsible; with removable parts collapsible by use of hinged or slidable parts; foldable without removing parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
    • B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
    • B65H75/18—Constructional details
    • B65H75/22—Constructional details collapsible; with removable parts
    • B65H75/2218—Collapsible hubs
    • B65H75/2227—Collapsible hubs with a flange fixed to the hub part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/50—Storage means for webs, tapes, or filamentary material
    • B65H2701/51—Cores or reels characterised by the material
    • B65H2701/513—Cores or reels characterised by the material assembled mainly from rigid elements of the same kind
    • B65H2701/5136—Moulded plastic elements

Definitions

  • the present invention relates to a foldable reel, in particular although not exclusively a reel intended for the winding of electric cables or optical fiber cables.
  • Foldable reels comprising cheeks associated with a drum comprising articulated elements each comprising two parts having opposite ends connected together and opposite ends connected to the cheeks by articulation means formed by hinges arranged so that the parts articulated elements are substantially aligned and substantially perpendicular to the cheeks for a position of use of the reel, and are folded in a direction substantially parallel to the cheeks for a storage position of the reel, the parts of the articulated elements having lateral surfaces arranged so contiguous along radial planes of the drum for a position in which the drum is used.
  • Drums of this type have the advantage of having a smaller footprint in the folded position than conventional drums with a rigid drum and, in a position of use, the lateral surfaces of the parts of the articulated elements bear on each other. so that the forces resulting from the winding of the cable on the drum are regularly distributed over the lateral surfaces of the articulated elements.
  • the shocks to which the cheeks are subjected cause the hinges to deteriorate so that the foldable drum risks to be quickly out of use.
  • the simultaneous rupture of several hinges risks putting the drum immediately out of use.
  • a foldable reel of the type mentioned above is proposed according to the invention.
  • which the parts of the articulated elements have end faces substantially perpendicular to a longitudinal direction of these parts, and the articulation means comprise elastic members.
  • the end faces of the articulated elements bear on the cheeks and are pressed against them by the elastic members so that these ensure both stable positioning of the articulated elements, a possibility of folding them and resistance to impact on the cheeks by an elastic deformation of the elastic members.
  • the elastic members are under tension for a position in which the reel is used.
  • the stability of maintaining the reel in a position of use is increased, in particular at the start of the cable winding operation, thus avoiding untimely folding of the reel.
  • the cheeks have crowns projecting towards the inside of the drum and the ends of the parts of articulated members adjacent to the cheeks are arranged to bear on these crowns.
  • the shearing force to which the elastic members are subjected is minimized.
  • the drum comprises at least one reinforcing and locking member extending axially inside the drum and ensuring an elastic connection tending to bring the cheeks towards one another for a position in which the drum is used.
  • the force pressing the cheeks on the ends of the articulated elements ensures increased locking of the drum in the position of use and minimizes the shearing force to which the elastic members are subjected.
  • the reel according to the invention comprises two cheeks 1 which support a drum generally designated at 2.
  • the drum 2 comprises articulated elements 3 each comprising two parts 4 in the form of bars. Two parts 4 of the same articulated element 3 are interconnected in an articulated manner like a compass by a means articulation comprising elastic members 5 fixed at the ends opposite two associated parts 4. The opposite end of the parts 4 is connected to the cheeks 1 by articulation means comprising elastic members 6.
  • the elastic members 5 and 6 are rubber or elastomer pads each comprising an elongated central body 7 and two hemispherical bearing heads 8 produced in one piece with the central body 7, the flat parts hemispherical heads being turned towards the cylindrical central body 7.
  • the parts 4 are hollow and have an outer wall in cylinder portion 9, end walls 10 perpendicular to a longitudinal direction of the parts 4 and side walls 11 arranged in corresponding planes to radial planes of the drum when the latter is in the position of use.
  • the end walls 10 of the parts 4 and the cheeks 1 have passage orifices 12 (FIG.
  • the cylindrical body 7 of the rubber studs has, at rest, a length 1 slightly less than the thickness E of two associated walls so that the cylindrical body 7 is in tension even when two associated parts 4 are aligned as illustrated in FIG. 3, so that the end faces of the parts 4 are pressed against the facing surface and provide stability for the articulated members 3 when the reel is in the position of use.
  • the cheeks 1 further comprise crowns 13 projecting towards the inside of the drum and the parts 4 comprise lugs positioning 14 which extend into an orifice 15 of the associated wall for a position of use of the drum.
  • the protruding crowns 13 are arranged so that the ends of the parts 4 adjacent to the cheeks are arranged to bear on these crowns for a position of use of the reel. In this position, the side walls 11 of the parts 4 bear on each other so that all of the parts 4 form a vault forming the drum 2 which rests on the projecting crowns 13 thus preventing the drum 2 from sliding. relative to the cheeks 1 in a direction parallel to the cheeks 1. On their sides the positioning lugs 14 which cooperate with the cheeks 1 prevent sliding of the drum 2 relative to the cheeks 1 in a tangential direction of the drum 2 so that the this avoids subjecting the elastic members 6 to shearing forces both radially and in a direction tangential to the drum 2.
  • the reel When a cable is wound on the drum 2, the reel therefore forms a rigid assembly adapted to support the weight of the cable and if the reel cheeks receive a shock, the deformation of the reel is absorbed by the elastic members without damaging them and the tension of the elastic members s which results from this deformation tends to bring the cheeks to bear on the end faces of the drum 2.
  • the flexibility of the elastic members makes it possible to slightly push one of the articulated elements 3, which projects the immediately adjacent articulated elements outwards and makes it possible to grasp the 'one of them and pull it outwards as illustrated in Figure 4.
  • the outer edge 16 of the ends of the parts 4 adjacent to the cheeks rests on the cheek 1 while the inner edge 17 is supported on the crown 13 and the internal edges 18 of the ends of two opposite parts 4 are supported one on the other to allow the parts 4 to pivot until they reach a storage position where they extend in a direction parallel to the cheeks.
  • the central part of the elastic members extends parallel to the end wall of the corresponding part 4 and exerts on it a force which tends to press the part 4 against the cheek 1.
  • the reel is thus metastably maintained in the storage position. To return it to the position of use, it is sufficient to separate the cheeks 1 until the parts 4 switch of their own accord to the position of use.
  • FIG. 6 illustrates another embodiment in which the elastic members 5 and 6 comprise rubber bracelets.
  • the end walls 10 of the parts 4 have notches 19.
  • the rubber bracelets 5 which join two opposite ends of the parts 4 are engaged in the notches 19 while holding the bracelets under a annular shape while the bracelets 6 ensuring the connection between one end of a part 4 and a cheek 1 are folded back on themselves, the two joined strands being engaged in the notches 19 of a part 4 while the ends in shape of loops 20 thus produced are engaged in openings 21 of the cheeks 1 and are retained on the outside of the cheeks 1, for example by means of a rod engaged in the loops 20 or by providing on the cheeks 1 lugs projecting towards the outside on which the loops 20 are engaged.
  • the drum comprises reinforcing and locking members extending axially inside the drum and ensuring an elastic connection tending to bring the cheeks towards one another.
  • the reinforcing and locking members comprise steel cables 22 disposed axially inside the drum 2 and equipped with support pieces 23 which bear on annular pads 24 made of rubber or elastomer arranged in cavities 25 provided in the cheeks 1.
  • the annular pads 24 have a diameter greater than the support pieces 23.
  • the length of the cables 22 is provided so that in the position of use of the reel the elastic buffers 24 are compressed by the support pieces 23 and thus ensure a tension of the cable 22 which tends to bring the cheeks 1 towards one another. 'other and therefore to maintain these strongly applied to the corresponding ends of the parts 4.
  • a shock for example when the reel falls askew from a transport vehicle or from a quay, this shock tends to spread one of the cheeks of the corresponding end of the drum 2, which causes increased tension on the cable 22.
  • This increased tension is absorbed by the elastic pads 24 which tend to bring the cheek 1 towards its support position on the end of the drum and absorb part of the impact energy so that this energy is not entirely transmitted to the elastic members 6.
  • the cavity 25 has an internal diameter substantially equal to the external diameter of the elastic pad 24 and the bottom of the cavity 25 has an opening 26 having a dimension close to or greater than the dimension of the head 23 so that the plug 24 can momentarily flow through the opening 26, which minimizes the tensile stress to which the cable 22 is subjected.
  • FIG. 9 illustrates another embodiment of this aspect of the invention in which the reinforcing and locking members simultaneously perform the function of articulation means between the parts 4 and the cheeks 1.
  • the reinforcing and locking member is constituted by a cable having a longitudinal elasticity, for example a textile cable 27 which extends through the cheeks 1 and is folded over an annular bead 28 and passes again through the cheeks 1 and through the end wall of the parts 4, the ends of the cable 27 being fixed by heads 29.
  • the heads 29 are for example produced by making knots at the ends of the cable 27 or by bringing the heads 29 by crimping at the ends of the cable 27.
  • a shock on the cheeks which tends to bring them together causes the articulated elements 3 to bend inwards until the opposite ends of the parts 4 bear on the cable 27 which thus limits the deformation articulated elements while ensuring their elastic return to a normal position of use.
  • the invention has been described by providing that the elastic members 6 forming the articulation means are preferably in tension when the reel is in a position of use, provision can be made, when the reel is equipped with '' reinforcing and locking members, to adopt for the elastic members forming the articulation means, a dimension eliminating the constraints for a position of use of the reel so as to stress the elastic members forming the articulation means only when the reel is in the storage position.
  • the first embodiment of the reinforcing and locking member has been illustrated in the form of a single cable arranged along the axis of the drum, it is possible to provide several reinforcement and locking cables distributed evenly around the axis of the drum.
  • an elastic pad may be provided in any other material, for example in knitted and compressed steel wire. Provision may also be made to fix the ends of the cable 22 to elastic discs, for example at the center of spring steel discs having an outer edge embedded in the cheeks 1.
  • the support heads can be attached to the central body, for example by crimping the support heads 8.
  • the elastic members have been described with a cylindrical central body 7, these elastic members can also be produced in the form of tongues having a beveled end comprising a shoulder turned towards the central part so as to be force-fitted into slots provided in the end walls of parts 4.

Landscapes

  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Vibration Dampers (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Walking Sticks, Umbrellas, And Fans (AREA)
  • Bridges Or Land Bridges (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)

Abstract

It includes cheeks (1) associated with a drum (2) including articulated elements (3) each including two parts (4) having end faces (10) substantially perpendicular to a longitudinal direction of these parts (4), these parts (4) having opposite ends which are connected together and opposite ends which are connected to the cheeks (1) by elastic members (5, 6). <IMAGE>

Description

La présente invention concerne un touret pliable, notamment bien que non exclusivement un touret destiné à l'enroulement de câbles électriques ou de câbles à fibres optiques.The present invention relates to a foldable reel, in particular although not exclusively a reel intended for the winding of electric cables or optical fiber cables.

On connaît des tourets pliables comportant des joues associées à un tambour comportant des éléments articulés comprenant chacun deux parties ayant des extrémités en regard reliées entre elles et des extrémités opposées reliées aux joues par des moyens d'articulation formés par des charnières disposées pour que les parties des éléments articulés soient sensiblement alignées et sensiblement perpendiculaires aux joues pour une position d'utilisation du touret, et soient repliées selon une direction sensiblement parallèle aux joues pour une position de stockage du touret, les parties des éléments articulés comportant des surfaces latérales disposées de façon jointive selon des plans radiaux du tambour pour une position d'utilisation du touret.Foldable reels are known comprising cheeks associated with a drum comprising articulated elements each comprising two parts having opposite ends connected together and opposite ends connected to the cheeks by articulation means formed by hinges arranged so that the parts articulated elements are substantially aligned and substantially perpendicular to the cheeks for a position of use of the reel, and are folded in a direction substantially parallel to the cheeks for a storage position of the reel, the parts of the articulated elements having lateral surfaces arranged so contiguous along radial planes of the drum for a position in which the drum is used.

Les tourets de ce type présentent l'avantage d'avoir en position repliée un encombrement plus réduit que les tourets classiques à tambour rigide et, dans une position d'utilisation, les surfaces latérales des parties des éléments articulés prennent appui les unes sur les autres de sorte que les efforts résultant de l'enroulement du câble sur le tambour sont régulièrement répartis sur les surfaces latérales des éléments articulés. Toutefois, lors des manipulations du touret, qu'il s'agisse des manipulations pour assurer le transport du touret chargé de câbles ou des manipulations sur place, les chocs auxquels les joues sont soumises provoquent une détérioration des charnières de sorte que le touret pliable risque d'être rapidement hors d'usage. En particulier, dans le cas d'une chute, la rupture simultanée de plusieurs charnières risque de mettre le touret immédiatement hors d'usage.Drums of this type have the advantage of having a smaller footprint in the folded position than conventional drums with a rigid drum and, in a position of use, the lateral surfaces of the parts of the articulated elements bear on each other. so that the forces resulting from the winding of the cable on the drum are regularly distributed over the lateral surfaces of the articulated elements. However, when handling the drum, whether it is handling the transport of the cable-laden drum or handling it on site, the shocks to which the cheeks are subjected cause the hinges to deteriorate so that the foldable drum risks to be quickly out of use. In particular, in the event of a fall, the simultaneous rupture of several hinges risks putting the drum immediately out of use.

Afin de pallier cet inconvénient on propose selon l'invention un touret pliable du type rappelé ci-dessus dans lequel les parties des éléments articulés ont des faces extrêmes sensiblement perpendiculaires à une direction longitudinale de ces parties, et les moyens d'articulation comprennent des organes élastiques.In order to overcome this drawback, a foldable reel of the type mentioned above is proposed according to the invention. which the parts of the articulated elements have end faces substantially perpendicular to a longitudinal direction of these parts, and the articulation means comprise elastic members.

Ainsi, en position d'utilisation du touret, les faces extrêmes des éléments articulés prennent appui sur les joues et sont plaquées contre celles-ci par les organes élastiques de sorte que ceux-ci assurent tout à la fois un positionnement stable des éléments articulés, une possibilité de repliage de ceux-ci et une résistance aux chocs sur les joues par une déformation élastique des organes élastiques.Thus, in the position of use of the reel, the end faces of the articulated elements bear on the cheeks and are pressed against them by the elastic members so that these ensure both stable positioning of the articulated elements, a possibility of folding them and resistance to impact on the cheeks by an elastic deformation of the elastic members.

Selon une version avantageuse de l'invention, les organes élastiques sont en tension pour une position d'utilisation du touret. Ainsi, on augmente la stabilité du maintien du touret dans une position d'utilisation en particulier au début de l'opération d'enroulement d'un câble et l'on évite ainsi un repliage intempestif du touret.According to an advantageous version of the invention, the elastic members are under tension for a position in which the reel is used. Thus, the stability of maintaining the reel in a position of use is increased, in particular at the start of the cable winding operation, thus avoiding untimely folding of the reel.

Selon un autre aspect avantageux de l'invention, les joues comportent des couronnes en saillie vers l'intérieur du tambour et les extrémités des parties d'organes articulés adjacentes aux joues sont disposées pour prendre appui sur ces couronnes. Ainsi, l'effort de cisaillement auquel sont soumis les organes élastiques est minimisé.According to another advantageous aspect of the invention, the cheeks have crowns projecting towards the inside of the drum and the ends of the parts of articulated members adjacent to the cheeks are arranged to bear on these crowns. Thus, the shearing force to which the elastic members are subjected is minimized.

Selon encore un autre aspect avantageux de l'invention, le touret comporte au moins un organe de renfort et de verrouillage s'étendant axialement à l'intérieur du tambour et assurant une liaison élastique tendant à rapprocher les joues l'une vers l'autre pour une position d'utilisation du touret. Ainsi, la force plaquant les joues sur les extrémités des éléments articulés assure un verrouillage accru du touret dans la position d'utilisation et minimise l'effort de cisaillement auquel les organes élastiques sont soumis.According to yet another advantageous aspect of the invention, the drum comprises at least one reinforcing and locking member extending axially inside the drum and ensuring an elastic connection tending to bring the cheeks towards one another for a position in which the drum is used. Thus, the force pressing the cheeks on the ends of the articulated elements ensures increased locking of the drum in the position of use and minimizes the shearing force to which the elastic members are subjected.

D'autres caractéristiques et avantages de l'invention apparaîtront encore à la lecture de la description qui suit de différents modes de réalisation particuliers de l'invention en relation avec les figures ci-jointes parmi lesquelles :

  • la figure 1 est une vue en élévation du touret selon l'invention,
  • la figure 2 est une vue en coupe selon la ligne II-II de la figure 1,
  • la figure 3 est une vue en coupe d'un élément articulé et des portions de joues adjacentes selon la ligne III-III de la figure 1 pour une position d'utilisation d'un premier mode de réalisation du touret selon l'invention,
  • la figure 4 est une vue en coupe analogue à celle de la figure 3 lors du repliage du touret,
  • la figure 5 est une vue en élévation agrandie d'un organe élastique et une vue en coupe correspondante de l'encadré V de la figure 3 avant la mise en place de l'organe élastique,
  • la figure 6 est une vue en perspective d'une partie d'élément articulé et des organes élastiques correspondants selon un second mode de réalisation de l'invention,
  • la figure 7 est une vue en coupe axiale partielle d'un touret équipé d'un organe de renfort et de verrouillage dans une position intermédiaire entre la position de stockage et la position d'utilisation,
  • la figure 8 est une vue agrandie de l'encadré VIII de la figure 7,
  • la figure 9 est une vue analogue à celle de la figure 7 d'un autre mode de réalisation de l'organe de renfort et de verrouillage.
Other characteristics and advantages of the invention will become apparent on reading the following description of different particular embodiments of the invention in relation to the attached figures, among which:
  • FIG. 1 is an elevation view of the reel according to the invention,
  • FIG. 2 is a sectional view along the line II-II of FIG. 1,
  • FIG. 3 is a sectional view of an articulated element and of adjacent cheek portions according to line III-III of FIG. 1 for a position of use of a first embodiment of the reel according to the invention,
  • FIG. 4 is a sectional view similar to that of FIG. 3 when the reel is folded,
  • FIG. 5 is an enlarged elevation view of an elastic member and a corresponding sectional view of the box V of FIG. 3 before the elastic member is put in place,
  • FIG. 6 is a perspective view of a part of an articulated element and of the corresponding elastic members according to a second embodiment of the invention,
  • FIG. 7 is a partial axial section view of a drum fitted with a reinforcing and locking member in an intermediate position between the storage position and the use position,
  • FIG. 8 is an enlarged view of the box VIII of FIG. 7,
  • Figure 9 is a view similar to that of Figure 7 of another embodiment of the reinforcing and locking member.

En référence aux figures, le touret selon l'invention comporte deux joues 1 qui supportent un tambour généralement désigné en 2.With reference to the figures, the reel according to the invention comprises two cheeks 1 which support a drum generally designated at 2.

Le tambour 2 comporte des éléments articulés 3 comprenant chacun deux parties 4 en forme de barreaux. Deux parties 4 d'un même élément articulé 3 sont reliées entre elles de façon articulées à la façon d'un compas par un moyen d'articulation comprenant des organes élastiques 5 fixés aux extrémités en regard de deux parties 4 associées. L'extrémité opposée des parties 4 est reliée aux joues 1 par des moyens d'articulation comprenant des organes élastiques 6.The drum 2 comprises articulated elements 3 each comprising two parts 4 in the form of bars. Two parts 4 of the same articulated element 3 are interconnected in an articulated manner like a compass by a means articulation comprising elastic members 5 fixed at the ends opposite two associated parts 4. The opposite end of the parts 4 is connected to the cheeks 1 by articulation means comprising elastic members 6.

Selon le premier mode de réalisation, les organes élastiques 5 et 6 sont des plots en caoutchouc ou en élastomère comportant chacun un corps central allongé 7 et deux têtes d'appui hémisphériques 8 réalisées en une seule pièce avec le corps central 7, les parties planes des têtes hémisphériques étant tournées vers le corps central cylindrique 7. Les parties 4 sont creuses et comportent une paroi extérieure en portion de cylindre 9, des parois extrêmes 10 perpendiculaires à une direction longitudinale des parties 4 et des parois latérales 11 disposées selon des plans correspondant à des plans radiaux du tambour lorsque celui-ci est en position d'utilisation. Les parois extrêmes 10 des parties 4 et les joues 1 comportent des orifices de passage 12 (figure 5) dans lesquels s'étendent les corps cylindriques 7 des plots en caoutchouc 5 et 6 qui sont mis en place en introduisant à force l'une des têtes hémisphériques jusqu'à ce qu'elle débouche à l'extrémité des orifices de passage 12 afin que les parties planes de têtes hémisphériques prennent appui sur des faces opposées de deux parois associées.According to the first embodiment, the elastic members 5 and 6 are rubber or elastomer pads each comprising an elongated central body 7 and two hemispherical bearing heads 8 produced in one piece with the central body 7, the flat parts hemispherical heads being turned towards the cylindrical central body 7. The parts 4 are hollow and have an outer wall in cylinder portion 9, end walls 10 perpendicular to a longitudinal direction of the parts 4 and side walls 11 arranged in corresponding planes to radial planes of the drum when the latter is in the position of use. The end walls 10 of the parts 4 and the cheeks 1 have passage orifices 12 (FIG. 5) in which extend the cylindrical bodies 7 of the rubber pads 5 and 6 which are put in place by forcibly introducing one of the hemispherical heads until it opens at the end of the passage openings 12 so that the flat parts of hemispherical heads bear on opposite faces of two associated walls.

Comme illustré par la figure 5, le corps cylindrique 7 des plots en caoutchouc a, au repos, une longueur 1 légèrement inférieure à l'épaisseur E de deux parois associées afin que le corps cylindrique 7 soit en tension même lorsque deux parties 4 associées sont alignées comme illustré sur la figure 3, de sorte que les faces extrêmes des parties 4 sont plaquées sur la surface en regard et assurent une stabilité des organes articulés 3 lorsque le touret est en position d'utilisation.As illustrated in FIG. 5, the cylindrical body 7 of the rubber studs has, at rest, a length 1 slightly less than the thickness E of two associated walls so that the cylindrical body 7 is in tension even when two associated parts 4 are aligned as illustrated in FIG. 3, so that the end faces of the parts 4 are pressed against the facing surface and provide stability for the articulated members 3 when the reel is in the position of use.

Selon le mode de réalisation préféré illustré, les joues 1 comportent en outre des couronnes 13 en saillie vers l'intérieur du tambour et les parties 4 comportent des ergots de positionnement 14 qui s'étendent dans un orifice 15 de la paroi associée pour une position d'utilisation du touret.According to the preferred embodiment illustrated, the cheeks 1 further comprise crowns 13 projecting towards the inside of the drum and the parts 4 comprise lugs positioning 14 which extend into an orifice 15 of the associated wall for a position of use of the drum.

Les couronnes en saillie 13 sont disposées pour que les extrémités des parties 4 adjacentes aux joues soient disposées pour prendre appui sur ces couronnes pour une position d'utilisation du touret. Dans cette position, les parois latérales 11 des parties 4 prennent appui les unes sur les autres de sorte que l'ensemble des parties 4 réalise une voûte formant le tambour 2 qui prend appui sur les couronnes en saillie 13 évitant ainsi un glissement du tambour 2 par rapport aux joues 1 selon une direction parallèle aux joues 1. De leurs côtés les ergots de positionnement 14 qui coopèrent avec les joues 1 évitent un glissement du tambour 2 par rapport aux joues 1 selon une direction tangentielle du tambour 2 de sorte que l'on évite ainsi de soumettre les organes élastiques 6 à des efforts de cisaillement aussi bien radialement que selon une direction tangentielle au tambour 2. Lorsqu'un câble est enroulé sur le tambour 2, le touret forme donc un ensemble rigide adapté à supporter le poids du câble et si les joues du touret reçoivent un choc, la déformation du touret est amortie par les organes élastiques sans détériorer ceux-ci et la tension des organes élastiques qui résulte de cette déformation tend à ramener les joues en appui sur les faces extrêmes du tambour 2.The protruding crowns 13 are arranged so that the ends of the parts 4 adjacent to the cheeks are arranged to bear on these crowns for a position of use of the reel. In this position, the side walls 11 of the parts 4 bear on each other so that all of the parts 4 form a vault forming the drum 2 which rests on the projecting crowns 13 thus preventing the drum 2 from sliding. relative to the cheeks 1 in a direction parallel to the cheeks 1. On their sides the positioning lugs 14 which cooperate with the cheeks 1 prevent sliding of the drum 2 relative to the cheeks 1 in a tangential direction of the drum 2 so that the this avoids subjecting the elastic members 6 to shearing forces both radially and in a direction tangential to the drum 2. When a cable is wound on the drum 2, the reel therefore forms a rigid assembly adapted to support the weight of the cable and if the reel cheeks receive a shock, the deformation of the reel is absorbed by the elastic members without damaging them and the tension of the elastic members s which results from this deformation tends to bring the cheeks to bear on the end faces of the drum 2.

Lorsque l'on souhaite replier un touret vide en position de stockage, la flexibilité des organes élastiques permet d'enfoncer légèrement l'un des éléments articulés 3, ce qui fait saillir vers l'extérieur les éléments articulés immédiatement adjacents et permet de saisir l'un d'entre eux et de le tirer vers l'extérieur comme illustré par la figure 4. Dans ce mouvement, l'arête extérieure 16 des extrémités des parties 4 adjacente aux joues prend appui sur la joue 1 tandis que l'arête intérieure 17 prend appui sur la couronne 13 et les arêtes intérieures 18 des extrémités de deux parties 4 en regard prennent appui l'une sur l'autre pour permettre un pivotement des parties 4 jusqu'à ce qu'elles atteignent une position de stockage où elles s'étendent selon une direction parallèle aux joues.When it is desired to fold an empty reel into the storage position, the flexibility of the elastic members makes it possible to slightly push one of the articulated elements 3, which projects the immediately adjacent articulated elements outwards and makes it possible to grasp the 'one of them and pull it outwards as illustrated in Figure 4. In this movement, the outer edge 16 of the ends of the parts 4 adjacent to the cheeks rests on the cheek 1 while the inner edge 17 is supported on the crown 13 and the internal edges 18 of the ends of two opposite parts 4 are supported one on the other to allow the parts 4 to pivot until they reach a storage position where they extend in a direction parallel to the cheeks.

Dans cette position de stockage qui n'est pas illustrée sur les figures, la partie centrale des organes élastiques s'étend parallèlement à la paroi extrême de la partie 4 correspondante et exerce sur celle-ci une force qui tend à plaquer la partie 4 contre la joue 1. Le touret est ainsi maintenu de façon métastable en position de stockage. Pour le remettre en position d'utilisation, il suffit d'écarter les joues 1 jusqu'à ce que les parties 4 basculent d'elles-mêmes vers la position d'utilisation.In this storage position which is not illustrated in the figures, the central part of the elastic members extends parallel to the end wall of the corresponding part 4 and exerts on it a force which tends to press the part 4 against the cheek 1. The reel is thus metastably maintained in the storage position. To return it to the position of use, it is sufficient to separate the cheeks 1 until the parts 4 switch of their own accord to the position of use.

La figure 6 illustre un autre mode de réalisation dans lequel les organes élastiques 5 et 6 comportent des bracelets en caoutchouc. Dans ce mode de réalisation les parois extrêmes 10 des parties 4 comportent des encoches 19. Dans le mode de réalisation illustré, les bracelets en caoutchouc 5 qui réunissent deux extrémités en regard des parties 4 sont engagés dans les encoches 19 en maintenant les bracelets sous une forme annulaire tandis que les bracelets 6 assurant la liaison entre une extrémité d'une partie 4 et une joue 1 sont repliés sur eux-mêmes, les deux brins accolés étant engagés dans les encoches 19 d'une partie 4 tandis que les extrémités en forme de boucles 20 ainsi réalisées sont engagées dans des ouvertures 21 des joues 1 et sont retenues à l'extérieur des joues 1 par exemple au moyen d'une tige engagée dans les boucles 20 ou en prévoyant sur les joues 1 des ergots en saillie vers l'extérieur sur lesquels les boucles 20 sont engagées.FIG. 6 illustrates another embodiment in which the elastic members 5 and 6 comprise rubber bracelets. In this embodiment, the end walls 10 of the parts 4 have notches 19. In the illustrated embodiment, the rubber bracelets 5 which join two opposite ends of the parts 4 are engaged in the notches 19 while holding the bracelets under a annular shape while the bracelets 6 ensuring the connection between one end of a part 4 and a cheek 1 are folded back on themselves, the two joined strands being engaged in the notches 19 of a part 4 while the ends in shape of loops 20 thus produced are engaged in openings 21 of the cheeks 1 and are retained on the outside of the cheeks 1, for example by means of a rod engaged in the loops 20 or by providing on the cheeks 1 lugs projecting towards the outside on which the loops 20 are engaged.

Selon un autre aspect de l'invention, le touret comporte des organes de renfort et de verrouillage s'étendant axialement à l'intérieur du tambour et assurant une liaison élastique tendant à rapprocher les joues l'une vers l'autre.According to another aspect of the invention, the drum comprises reinforcing and locking members extending axially inside the drum and ensuring an elastic connection tending to bring the cheeks towards one another.

Selon un premier mode de réalisation de cet aspect de l'invention illustré par les figures 2, 7 et 8, les organes de renfort et de verrouillage comportent des câbles en acier 22 disposés axialement à l'intérieur du tambour 2 et équipés de pièces d'appui 23 qui prennent appui sur des tampons annulaires 24 en caoutchouc ou en élastomère disposés dans des cavités 25 prévues dans les joues 1. De préférence les tampons annulaires 24 ont un diamètre supérieur aux pièces d'appui 23.According to a first embodiment of this aspect of the invention illustrated by FIGS. 2, 7 and 8, the reinforcing and locking members comprise steel cables 22 disposed axially inside the drum 2 and equipped with support pieces 23 which bear on annular pads 24 made of rubber or elastomer arranged in cavities 25 provided in the cheeks 1. Preferably the annular pads 24 have a diameter greater than the support pieces 23.

La longueur des câbles 22 est prévue pour que dans la position d'utilisation du touret les tampons élastiques 24 soient comprimée par les pièces d'appui 23 et assurent ainsi une tension du câble 22 qui tend à rapprocher les joues 1 l'une vers l'autre et donc à maintenir celles-ci fortement appliquées sur les extrémités correspondantes des parties 4. Lorsque le bord des joues 1 reçoit un choc, par exemple lorsque le touret tombe de travers à partir d'un véhicule de transport ou à partir d'un quai, ce choc tend à écarter l'une des joues de l'extrémité correspondante du tambour 2, ce qui provoque une tension accrue sur le câble 22. Cette tension accrue est absorbée par les tampons élastiques 24 qui tendent à ramener la joue 1 vers sa position d'appui sur l'extrémité du tambour et absorbent une partie de l'énergie du choc de sorte que cette énergie ne se trouve pas entièrement transmise aux organes élastiques 6.The length of the cables 22 is provided so that in the position of use of the reel the elastic buffers 24 are compressed by the support pieces 23 and thus ensure a tension of the cable 22 which tends to bring the cheeks 1 towards one another. 'other and therefore to maintain these strongly applied to the corresponding ends of the parts 4. When the edge of the cheeks 1 receives a shock, for example when the reel falls askew from a transport vehicle or from a quay, this shock tends to spread one of the cheeks of the corresponding end of the drum 2, which causes increased tension on the cable 22. This increased tension is absorbed by the elastic pads 24 which tend to bring the cheek 1 towards its support position on the end of the drum and absorb part of the impact energy so that this energy is not entirely transmitted to the elastic members 6.

De préférence, comme illustré sur la figure 8, la cavité 25 a un diamètre interne sensiblement égal au diamètre externe du tampon élastique 24 et le fond de la cavité 25 comporte une ouverture 26 ayant une dimension voisine ou supérieure à la dimension de la tête 23 de sorte que le tampon 24 peut fluer momentanément à travers l'ouverture 26, ce qui minimise la contrainte de traction à laquelle est soumise le câble 22.Preferably, as illustrated in FIG. 8, the cavity 25 has an internal diameter substantially equal to the external diameter of the elastic pad 24 and the bottom of the cavity 25 has an opening 26 having a dimension close to or greater than the dimension of the head 23 so that the plug 24 can momentarily flow through the opening 26, which minimizes the tensile stress to which the cable 22 is subjected.

La figure 9 illustre un autre mode de réalisation de cet aspect de l'invention dans lequel les organes de renfort et de verrouillage assurent en même temps la fonction de moyens d'articulation entre les parties 4 et les joues 1. Dans ce mode de réalisation l'organe de renfort et de verrouillage est constitué par un câble ayant une élasticité longitudinale, par exemple un câble textile 27 qui s'étend à travers les joues 1 et est replié sur un bourrelet annulaire 28 et passe à nouveau à travers les joues 1 et à travers la paroi extrême des parties 4, les extrémités du câble 27 étant fixées par des têtes 29. Les têtes 29 sont par exemple réalisées en faisant des noeuds aux extrémités du câble 27 ou en rapportant les têtes 29 par sertissage aux extrémités du câble 27.FIG. 9 illustrates another embodiment of this aspect of the invention in which the reinforcing and locking members simultaneously perform the function of articulation means between the parts 4 and the cheeks 1. In this embodiment the reinforcing and locking member is constituted by a cable having a longitudinal elasticity, for example a textile cable 27 which extends through the cheeks 1 and is folded over an annular bead 28 and passes again through the cheeks 1 and through the end wall of the parts 4, the ends of the cable 27 being fixed by heads 29. The heads 29 are for example produced by making knots at the ends of the cable 27 or by bringing the heads 29 by crimping at the ends of the cable 27.

Dans ce mode de réalisation un choc sur les joues qui tend à rapprocher celles-ci fait fléchir les éléments articulés 3 vers l'intérieur jusqu'à ce que les extrémités en regard des parties 4 prennent appui sur le câble 27 qui limite ainsi la déformation des éléments articulés tout en assurant leur retour élastique vers une position normale d'utilisation.In this embodiment, a shock on the cheeks which tends to bring them together causes the articulated elements 3 to bend inwards until the opposite ends of the parts 4 bear on the cable 27 which thus limits the deformation articulated elements while ensuring their elastic return to a normal position of use.

Bien entendu l'invention n'est pas limitée aux modes de réalisation décrits et on peut y apporter des variantes de réalisation sans sortir du cadre de l'invention tel que défini par les revendications.Of course, the invention is not limited to the embodiments described and it is possible to make variant embodiments without departing from the scope of the invention as defined by the claims.

En particulier, bien que l'invention ait été décrite en prévoyant que les organes élastiques 6 formant les moyens d'articulation sont de préférence en tension lorsque le touret est dans une position d'utilisation, on peut prévoir, lorsque le touret est équipé d'organes de renfort et de verrouillage, d'adopter pour les organes élastiques formant les moyens d'articulation, un dimensionnement supprimant les contraintes pour une position d'utilisation du touret afin de ne solliciter les organes élastiques formant les moyens d'articulation que lorsque le touret est en position de stockage.In particular, although the invention has been described by providing that the elastic members 6 forming the articulation means are preferably in tension when the reel is in a position of use, provision can be made, when the reel is equipped with '' reinforcing and locking members, to adopt for the elastic members forming the articulation means, a dimension eliminating the constraints for a position of use of the reel so as to stress the elastic members forming the articulation means only when the reel is in the storage position.

De même, bien que le premier mode de réalisation de l'organe de renfort et de verrouillage ait été illustré sous forme d'un seul câble disposé selon l'axe du touret, on peut prévoir plusieurs câbles de renfort et de verrouillage répartis de façon régulière autour de l'axe du touret.Similarly, although the first embodiment of the reinforcing and locking member has been illustrated in the form of a single cable arranged along the axis of the drum, it is possible to provide several reinforcement and locking cables distributed evenly around the axis of the drum.

Bien que dans le mode de réalisation de la figure 7, l'organe de liaison élastique ait été illustré par un tampon en caoutchouc 24, on peut prévoir un tampon élastique en tout autre matière, par exemple en fil d'acier tricoté et comprimé. On peut également prévoir de fixer les extrémités du câble 22 à des disques élastiques, par exemple au centre de disques en acier à ressort ayant un bord externe encastré dans les joues 1.Although in the embodiment of Figure 7, the elastic connecting member has been illustrated by a rubber pad 24, an elastic pad may be provided in any other material, for example in knitted and compressed steel wire. Provision may also be made to fix the ends of the cable 22 to elastic discs, for example at the center of spring steel discs having an outer edge embedded in the cheeks 1.

Dans le mode de réalisation de la figure 9, il est bien entendu nécessaire de prévoir autant de câbles 27 que d'éléments articulés 3 constituant le tambour 2.In the embodiment of FIG. 9, it is of course necessary to provide as many cables 27 as there are articulated elements 3 constituting the drum 2.

Dans le mode de réalisation des organes élastiques sous forme de plots, on peut rapporter les têtes d'appui sur le corps central, par exemple par sertissage des têtes d'appui 8.In the embodiment of the elastic members in the form of studs, the support heads can be attached to the central body, for example by crimping the support heads 8.

Bien que dans le premier mode de réalisation les organes élastiques aient été décrits avec un corps central 7 cylindrique, ces organes élastiques peuvent également être réalisés sous forme de languettes ayant une extrémité biseautée comprenant un épaulement tourné vers la partie centrale pour être engagées à force dans des fentes prévues dans les parois extrêmes des parties 4.Although in the first embodiment the elastic members have been described with a cylindrical central body 7, these elastic members can also be produced in the form of tongues having a beveled end comprising a shoulder turned towards the central part so as to be force-fitted into slots provided in the end walls of parts 4.

Claims (10)

Touret pliable comportant des joues (1) associées à un tambour (2) comportant des éléments articulés (3) comprenant chacun deux parties (4) ayant des extrémités en regard reliées entre elles et des extrémités opposées reliées aux joues (1) par des moyens d'articulation disposés pour que les parties (4) des éléments articulés (3) soient sensiblement alignées et sensiblement perpendiculaires aux joues pour une position d'utilisation du touret, et soient repliées selon une direction sensiblement parallèle aux joues pour une position de stockage du touret, les parties des éléments articulés comportant des surfaces latérales (11) disposées de façon jointive selon des plans sensiblement radiaux du tambour pour une position d'utilisation du touret, caractérisé en ce que les parties (4) des éléments articulés (3) ont des faces extrêmes (10) sensiblement perpendiculaires à une direction longitudinale de ces parties et en ce que les moyens d'articulation comprennent des organes élastiques (5, 6).Foldable reel comprising cheeks (1) associated with a drum (2) comprising articulated elements (3) each comprising two parts (4) having opposite ends connected to each other and opposite ends connected to the cheeks (1) by means articulation arranged so that the parts (4) of the articulated elements (3) are substantially aligned and substantially perpendicular to the cheeks for a position of use of the reel, and are folded in a direction substantially parallel to the cheeks for a storage position of the drum, the parts of the articulated elements comprising lateral surfaces (11) arranged contiguously along substantially radial planes of the drum for a position of use of the drum, characterized in that the parts (4) of the articulated elements (3) have end faces (10) substantially perpendicular to a longitudinal direction of these parts and in that the articulation means comprise nt elastic members (5, 6). Touret pliable selon la revendication 1, caractérisé en ce que les organes élastiques (5,6) sont en tension pour une position d'utilisation du touret.Foldable reel according to claim 1, characterized in that the elastic members (5,6) are under tension for a position of use of the reel. Touret pliable selon la revendication 1, caractérisé en ce que les joues (1) comportent des couronnes (13) en saillie vers l'intérieur du tambour et en ce que les parties (4) ont des extrémités adjacentes aux joues qui sont disposées pour prendre appui sur ces couronnes (13) pour une position d'utilisation du touret.Foldable reel according to claim 1, characterized in that the cheeks (1) have crowns (13) projecting towards the inside of the drum and in that the parts (4) have ends adjacent to the cheeks which are arranged to take support on these crowns (13) for a position of use of the reel. Touret pliable selon la revendication 1, caractérisé en ce qu'au moins l'une des faces extrêmes des parties des éléments articulés comporte un organe de positionnement (14) coopérant avec un organe complémentaire (15) en regard pour une position d'utilisation du touret.Foldable reel according to claim 1, characterized in that at least one of the end faces of the parts of the articulated elements comprises a positioning member (14) cooperating with a complementary member (15) opposite for a position of use of the reel. Touret pliable selon la revendication 1, caractérisé en ce que les parties d'éléments articulés sont creuses et les organes élastiques sont des plots comportant un corps central élastique allongé (7) s'étendant à travers des parois en regard des éléments articulés et des joues, et deux têtes d'appui (8) reliées aux extrémités du corps central (7).Foldable reel according to claim 1, characterized in that the parts of articulated elements are hollow and the elastic members are studs comprising an elongated elastic central body (7) extending through walls facing the articulated elements and the cheeks, and two support heads (8) connected to the ends of the central body (7 ). Touret pliable selon la revendication 5, caractérisé en ce qu'au repos le corps central (7) a une longueur (1) inférieure à une épaisseur (E) des parois à travers lesquelles s'étend le corps central (7).Foldable reel according to claim 5, characterized in that at rest the central body (7) has a length (1) less than a thickness (E) of the walls through which the central body (7) extends. Touret pliable selon la revendication 1, caractérisé en ce que les parties d'éléments articulés comportent des encoches (19) et en ce que les organes élastiques (5, 6) comportent des bracelets élastiques engagés dans les encoches.Foldable reel according to claim 1, characterized in that the parts of articulated elements comprise notches (19) and in that the elastic members (5, 6) comprise elastic bracelets engaged in the notches. Touret pliable selon la revendication 1, caractérisé en ce qu'il comporte au moins un organe de renfort et de verrouillage (22, 27) s'étendant axialement à l'intérieur du tambour (2) et assurant une liaison élastique tendant à rapprocher les joues (1) l'une vers l'autre.Foldable reel according to claim 1, characterized in that it comprises at least one reinforcing and locking member (22, 27) extending axially inside the drum (2) and ensuring an elastic connection tending to bring the cheeks (1) towards each other. Touret pliable selon la revendication 8, caractérisé en ce que l'organe de renfort et de verrouillage comprend un câble élastique (27) fixé aux extrémités des parties des éléments articulés pour assurer également une fonction de moyen d'articulation entre les parties (4) des éléments articulés et les joues.Foldable reel according to claim 8, characterized in that the reinforcing and locking member comprises an elastic cable (27) fixed to the ends of the parts of the articulated elements to also provide a function of articulation means between the parts (4) articulated elements and cheeks. Touret pliable selon la revendication 8, caractérisé en ce que l'organe de renfort et de verrouillage comporte un câble (22) relié aux joues par l'intermédiaire d'organes de liaison élastiques (24).Foldable reel according to claim 8, characterized in that the reinforcing and locking member comprises a cable (22) connected to the cheeks by means of elastic connecting members (24).
EP94401537A 1993-07-30 1994-07-05 Collapsible reel Expired - Lifetime EP0636567B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9309447 1993-07-30
FR9309447A FR2708582B1 (en) 1993-07-30 1993-07-30 Foldable reel.

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EP0636567A1 true EP0636567A1 (en) 1995-02-01
EP0636567B1 EP0636567B1 (en) 1997-05-21

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US (1) US5547147A (en)
EP (1) EP0636567B1 (en)
CA (1) CA2128931C (en)
DE (1) DE69403287D1 (en)
FR (1) FR2708582B1 (en)
PL (1) PL174990B1 (en)

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DE69403287D1 (en) 1997-06-26
PL174990B1 (en) 1998-10-30
FR2708582B1 (en) 1995-10-13
CA2128931C (en) 1999-02-23
PL304407A1 (en) 1995-02-06
US5547147A (en) 1996-08-20
EP0636567B1 (en) 1997-05-21
FR2708582A1 (en) 1995-02-10
CA2128931A1 (en) 1995-01-31

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