FR2733219A1 - DEVICE FOR RELEASING REEL COIL CABLES - Google Patents

Abstract

The device for unwinding cables wound in a crown comprises a rotating support receiving each crown to be unwound. It is characterized in that said support is a reel (4) which is adapted to the various crowns and comprises a mandrel (5) and cheeks (6, 7) removable and adjustable in position on the mandrel and locked thereon, depending on the crown (s) in place on the mandrel. this adapted reel is also received on a reel holder carriage (20) which is adapted to it and is foldable.

Description

Wire reeling device wound in a ring.

  The present invention relates to a wire reel unwinding device.

  In common, the cables delivered by the cable operators to the users are wound on reels or in crowns. Crown conditioning applies to small and medium section cables. For reasons of less space for storage and transport, it is often preferred to package the same cables on

reels.

  These corona-wound cables have diameters up to about 20 mm. Their length can be from 50 to 250 m. The height of the crowns is therefore variable and can be from 80 mm or less to 250 mm or slightly more. The crowns are delivered in plastic packaging, and / or are

  often held each by an external clamping link.

  When the cables are wound on reels and thus delivered, the reels are directly the reeling devices. These reels are often the property of the cable manufacturer and are then recorded by the latter and managed by the user, for their return, their

  deconstruction and reuse by the cable manufacturer. Alternatively, these reels are lost reels, then discarded when they are empty.

  For cables wound in a ring and thus delivered, there are on the market of unwinding devices which comprise a rotating support, with horizontal plate and vertical support axis, on which is placed the cable crown to unwind. The unwinding takes place from the inside of the crown, taking the inner end of the cable to unroll the successive inner turns with the rotation of the rotating support. These existing devices are more particularly suitable for crowns of low height, that is to say of small axial length, and for small section cables. On the other hand, when the crowns are of relatively large height, the turns have

  tendency to collapse and then become entangled.

  The object of the present invention is to provide a device for winding corona-wound cables, which avoids the drawbacks of existing devices and is easy to set up and use, fast and easy, whatever the size of the crowns to be unwound. . It relates to a device for winding cables wound in a ring, each cable forming a ring, comprising a rotating support for holding and driving each ring to be unwound, characterized in that said support is constituted by a drum, adaptable to said rings and having a mandrel of length at least substantially greater than the maximum axial length of the different crowns, two lateral cheeks located on either side of at least one of the rings mounted on said

  chuck and of which at least one of them is removable and adjustable relative to the other longitudinally on said mandrel, and locking means of each side cheek adjustable on said mandrel.

  This device advantageously also has at least one of the following additional features: said mandrel has a series of first locking means along at least one of its end portions, defining successive discrete locking positions of each cheek; adjustable, and a second locking means is assigned to each adjustable cheek and received in one of said first means. said first means are holes aligned with one another on at least one generator of said mandrel and said second means of locking a locking finger of each adjustable cheek in one of said holes on each generatrix. said locking finger of each adjustable cheek protrudes on a central opening of the adjustable cheek, and the mandrel comprises at least one groove, longitudinal on its periphery and associated with said holes on each generatrix, and laterally open passages in the

  individual holes and in the associated groove.

  the device further comprises a trolley carrying a drum, comprising a pair of support arms, provided with mounting lugs and free retention in rotation of said drum, and the drum comprises two end pieces and

  axial to said mandrel and received in said tabs.

  The characteristics and advantages of the invention

  will emerge from the description of exemplary embodiments

  given in the accompanying drawings, in which: - Figure 1 shows a winding wire wound crown, - Figures 2 to 7 are schematic perspective views of a device called drum adapted according to the invention, unwinding various crowns, - Figure 8 is a perspective view of the unwinding device according to the invention, consisting of said adapted drum and an accessory called trolley-reel, - Figures 9A to 9D are schematic views given of Figure 8 to show the establishment of the drum adapted to the bearing bearing trunk, - Figures 10 and 11 are a partial elevational view and a front view in section of a preferred embodiment of the mandrel of the drum adapted - Figures 12 and 13 show one of the cheeks received on the mandrel of Figures 10 and 11, in elevation and in section along the line XIII-XIII. FIG. 1 shows a cable crown 1 as delivered to a user. This ring may be in a plastic film packaging not shown and is maintained by a clamping link 2, peripheral on the ring. In the range of cable crowns delivered to users, this ring 1 can be considered to be of medium size. The different rings differ from each other essentially by their axial length and / or their outer and inner diameters. Figures 2 to 7 show that the device according to the invention adapts to crowns of different dimensions, such as the ring 1, or a ring 1A of maximum axial length or rings lB of small axial length. The device comprises a drum 4 adaptable to crowns to unwind. This drum 4 comprises a cylindrical mandrel 5 of length substantially greater than the maximum possible axial length of the rings and outside diameter just smaller than the inside diameter

minimal possible crowns.

  It also comprises two lateral cheeks 6 and 7 holding between them at least one of the rings in place on the mandrel and optionally an intermediate cheek 8 between two rings such as 1B in place one after the other on the mandrel.20 Of course, the number of crowns in place on the mandrel is limited only by the length of the mandrel and the adapted drum 4 has accordingly as many intermediate cheeks as necessary to separate the successive rings on the mandrel .25 The cheeks are removable, adjustable in position and locked individually in the desired position on the

  mandrel, except possibly one of the two side flanges which in this example is removable but locked in a single possible position on a first end portion of the mandrel.

  This side cheek 6 may alternatively be adjustable in position or be non-removable on the mandrel.

  The removable cheeks are identical and interchangeable to each constitute a side or intermediate cheek. They have an axial opening 9, of diameter just enough to put them in place and

slide on the mandrel.

  The mandrel comprises first locking means 10 for the removable cheeks, which define the different possible discrete positions on the mandrel for the adjustable cheeks. In this example, these first means are identical holes and aligned along a generator. One is provided on a first end portion of the mandrel for the side cheek 6. The other holes are evenly spaced along the second end portion and the intermediate portion of the mandrel in a continuous series. These holes 10 are alternatively provided

  along several generators of the mandrel.

  A second locking means 11 is assigned to each cheek and received in one of the first locking means. This second means 11 is in these figures 2 to 7, a finger, which is independent of the cheek and is received in a

  12 of the cheek hole and one of the holes 10, for locking in translation and rotation of the cheek on the mandrel. This hole 12 of the cheek is made in a shoulder 13 provided on one of the faces of the cheek, around its axial opening 9.

  Of course the first and second locking means of the cheeks on the mandrel may be different. In particular annular grooves may be provided on the periphery of the mandrel and retaining circlips assigned to the individual cheeks and each received in the groove chosen, to ensure the locking in translation, only the cheek, this cheek is also retained against In a variant, the second locking means can

  be directly integrated to each cheek.

  The mandrel preferably comprises at least one longitudinal groove 14 and each plays at least one relatively deep slot 15 and open in its axial opening, which are in facing relation when the cheeks are locked on the mandrel. Each groove allows the passage of a link, which is intended to ensure the maintenance of the turns of the crown in place on the drum but to extract it. The slots in the cheeks on either side of the crown serve to release the link of these cheeks, to make it out between the crown and each cheek and then allow to tighten and tie together the turns of the crown. The mandrel further comprises two end caps 17, which define between them an axis of articulation of the mandrel and therefore of the drum 4. These tips may be hollow, to be caught between two points in the manner of a drum

  classic on which the cable was directly wound.

  Advantageously, the unwinding device according to the invention further comprises a turret carriage 20, which receives the drum 4 carrying the crown or crowns to unwind. With reference to FIGS. 8 and 9, it can be seen that the turret carriage 20 comprises a pair of support arms 21, between which the turret 4 is kept free to rotate, and a pair of auxiliary arms 22. The support arms 22 define a terminal handle 23 of the carriage 20. They are equipped vis-à-vis holding means 24 of the drum 4. These holding means are constituted by two

  crooked tabs, hook-shaped half-open on the side of the handle, which are integral with the two support arms and receive and hold the two end caps of the mandrel but leave them free in rotation.

  The auxiliary arms 22 are secured to the support arms 21, at an intermediate point thereof, by a hinge 25, just below the tabs 24. They are thus foldable against the support arms and can be angularly detached therefrom. These auxiliary arms 22 and the tabs 24 are provided on one side and the other of the plane defined by the pair of support arms 21. The auxiliary arms 22 each have a substantially terminal elbow 26, at the level of their solidarity articulated on the support arm. In contrast they are each equipped with a wheel 27 or preferably a set 28 of three wheels for moving the carriage, the auxiliary arms then being unfolded or detached from the support arms. The bend 26 of each auxiliary arm serves as an abutment against the corresponding support arm, to limit the take-off angle of the auxiliary arms and allow stable maintenance of the turret carriage in conditions of use. This carriage allows an easy and effortless mounting of the drum carrying the crown or crowns to unwind, as appears in the diagrams 9A to 9D. The carriage, whose auxiliary arms are bent, is inclined and moved to the ground by using its wheels 27, so that the tabs 24 fit on the end caps 17 of the drum 4. It is then straightened up to the vertical . By tilting it beyond and serving as the fulcrum of the rollers 27 on the ground, the auxiliary arms are unfolded relative to the support arms, until the auxiliary arms stop on

the support arms.

  The position according to the diagram 9D, for which the auxiliary arms are in their limit take-off position and the ends of the support arms rest on the ground, is the stable position of the carriage. It can be used as a reel of the crown (s) in place on the reel it carries. This carriage is tilted further to take off the ends of the support arms and thus advance the carriage on its wheels, for transporting the drum or unwinding each ring in place on the drum. The set 28 of three wheels 27, which is articulated on the lower end of each auxiliary arm 21,

  makes it easy to climb or descend stairs or other equivalent obstacle.

  A preferred embodiment of the drum adapted to the crowns, according to the invention, is specified with regard to

  the chuck 5 opposite FIGS. 10 and 11 and any one of its cheeks, such as the cheek 7 opposite FIGS. 12 and 13.

  In these figures 10 & 12, the elements designated by the references used previously have the function which has been assigned to them and, where appropriate, functions

then specified.

  The mandrel has two rows of holes 10, in two opposite generatrices, and two grooves 14 also opposite. The holes 10 of each row are associated with one of the grooves 14 and communicate with this groove by individual passages 30 opening laterally into these holes and this groove. Each passage has a flared end 31 on the side of the groove and a constricted end 32 on the side of the hole in which it opens. Each groove 14 is then assigned to the translation guide that each plays on the mandrel and each passage 30 guide

  each cheek for its locking on the mandrel.

  As a result, the locking means 11 assigned to each cheek are integrated into the cheek. They are constituted by two fingers integrated into the cheek and opposed and protruding radially in the central opening 9 of the cheek. These two fingers are received in the two grooves 14 of the mandrel and cooperate with them for the translation of the cheek on the mandrel. They are each engaged in one of the passages 30 along the two grooves 14 and each forced into the hole 10 at the end of this passage, by rotation of the cheek around the mandrel. The cheek is disengaged by reverse rotation around the mandrel and guided translation on it. Two slots 15 are provided on each cheek, opposite one another, to position themselves in front of the two

  grooves of the chuck when the cheek is blocked on it.

  Advantageously, the mandrel and the cheeks are made of plastic, are obtained by molding and are recyclable. The mandrel is made in two parts or half-shells, to which belong two half-end hinge end-pieces and which are assembled to one another. Each cheek on its side, on one or both sides, the circular rib 13, a peripheral rib 35 and radial ribs reinforcement 36 between the

rib 15 and the rib 35.

  The slots 15 are deep, extend from the opening 9 substantially to the peripheral rib 35 and are delimited between two radial ribs 36, for

  sufficient resistance of the cheek.

  The resulting drum is very low weight, low cost and mechanically very resistant. Its unassembled component parts are easy to store and are quick to assemble. The users can therefore without inconvenience have at will of several drums, remaining in limited number and can at will be used for the storage of crowns left left in place on

their drum.

  It is specified that the drum adapted to the different crowns to divide successively or simultaneously is also as such use in accordance with that of a conventional reel on which has been wound a single cable, so that the unwinding of the or crowns put in place is made without torsion or cables and without forming loops. It is further specified that this adapted drum used preferably with its drum carriage can however be used, only independently of this carriage. The carriage meanwhile greatly facilitates all handling of the drum, both for unwinding and placing, transporting or removing the appropriate drum loaded with the one or more

crowns to unwind.

Claims (8)

  1) Device for winding cables wound in a ring, each cable forming a ring, comprising a rotating support for holding and driving each ring to be unwound, characterized in that said support is constituted by a drum (4), adaptable to said crowns (1, 1A, 1B) and having a mandrel (5) of length at least substantially greater than the maximum axial length of the various crowns, two lateral flanges (6, 7) located on both sides of at least one one of the rings mounted on said mandrel and of which at least one of them (7)   is removable and adjustable relative to the other (6) longitudinally on said mandrel, and locking means (10, 11) of each adjustable side cheek on said mandrel.   2) Device according to claim 1, characterized in that said mandrel (5) has a series of first locking means (10) along at least one of its end portions, defining successive discrete locking positions20 of each adjustable cheek (7), and a second locking means (11) is assigned to each   adjustable cheek and received in one of said first means (10).   3) Device according to claim 2, characterized in that it further comprises at least one additional intermediate cheek (8), removable and adjustable on the mandrel and   identical to each adjustable lateral cheek, successive crowns separation (lB) mounted on said mandrel, and said series of first means (10) further extends on a so-called intermediate portion of said mandrel.   4) Device according to one of claims 2 and 3, characterized in that said first means (10) are   holes aligned with each other on at least one generator of said mandrel and said second locking means a locking finger of each adjustable cheek in one of said holes on each generator.   ) Device according to claim 4, characterized in that said locking finger of each adjustable cheek protrudes on a central opening (9) of the adjustable cheek, and the mandrel (5) has at least one groove (14), longitudinal on its periphery and associated with said holes (10) on each generatrix, and passages (30) open laterally in the individual holes (10) and in the associated groove (14).   6) Device according to claim 5, characterized in that said passages (30) have a constriction, communication (32), between each hole and the open passage in this hole.   7) Device according to one of claims 5 and 6,   characterized in that each cheek further has at least one slot (15), open in its central opening, and corresponding to each groove of said mandrel to be positioned in front of it when the cheek is locked on the mandrel.   8) Device according to one of claims 1 to 7,   characterized in that it further comprises a trolley bearing drum (20), comprising a pair of support arms (21), equipped with tabs (24) for mounting and retaining free rotation of said drum (4), and the reel features   two ends (17) end and axial on said mandrel and 25 received in said tabs (24).   9) Device according to claim 8, characterized in that said carriage (20) further comprises a pair of auxiliary arms (22), each articulated at an intermediate point of one of the support arms, for folding30 against the support arms or their angular take off thereof, and each equipped with at least one end wheel (27) in advance of said carriage. 10) Device according to claim 9, characterized in that said auxiliary arms (22) have an elbow (26) on their end portion hinged to the support arms, serving as a stop against the support arm limiting   the angular take-off of the auxiliary arms.