VARIABLE GEOMETRY GRINDER

Abstract

The invention relates to a reel comprising a barrel (12) with an X axis and two side plates (14) which, in an assembled position of the reel, are fixed coaxially to said barrel, each side plate comprising a cheek extending perpendicular to the X axis in said assembled position, the cheeks of the two side plates delimiting a winding surface for a cable, at least one of said side plates, called a "reversible plate", being assemblable on the barrel according to first and second configurations in which the position of the cheek (20) of said reversible plate along the X axis is different. Abstract figure: figure 4

Description

Title of the invention: VARIABLE GEOMETRY WHEEL Technical field

[0001] The invention relates to a reel intended for winding a cable, in particular an electric cable. The reel is in particular intended to accommodate a pre-wound cable in the form of a crown. The invention also relates to a spool comprising a reel according to the invention and a cable wound on the reel. Finally, it relates to a method for modifying the winding surface of a reel according to the invention. Prior art

[0002] A reel is a spool onto which a cable is wound before use. The reel must be adapted to the diameter and length of the cable, which requires having several reels to wind different cables.

[0003] The reel facilitates the unwinding of the cable. To further facilitate this unwinding, the reel can be mounted on a winder.

[0004] There is a continuing need for a solution that allows the winding of different cables in a compact and practical manner.

[0005] An aim of the invention is to respond, at least partially, to this need. Summary of the invention

[0006] The invention proposes a reel comprising a barrel with axis X and two lateral flanges which, in an assembled position of the reel, are fixed coaxially to said barrel, each lateral flange comprising a cheek extending substantially perpendicular to the axis X in said assembled position, the cheeks of the two lateral flanges delimiting a winding surface for a cable, at least one of said lateral flanges, called "reversible flange", being assemblable on an end section of the barrel according to first and second configurations in which the position of the cheek of said reversible flange, along the axis X, is different, the transition from the first configuration to the second configuration including a reversal of the reversible flange.

[0007] In the first and second configurations, the winding surface thus has different first and second lengths, measured along the X axis, or "tracks", respectively.

[0008] As will be seen in more detail in the remainder of the description, the change in configuration makes it possible to modify the length of the winding surface. The reel can thus be easily adapted to different cable lengths or diameters.

[0009] A reversal of the reversible flange modifies the position of its cheek along the X axis, the cheek being for example further from the center of the barrel in the first configuration than in the second configuration, along the X axis. This modification of the position of the cheek thus modifies the volume available for winding the cable.

[0010] In other words, first and second different volumes are advantageously provided for winding the cable, between the two lateral flanges, in the first and second configurations, respectively.

[0011] By "turning the reversible flange", it is meant that the reversible flange is rotated 180° around a radial axis relative to the X axis. In other words, the reversible flange is oriented in a first direction in the first configuration, and in a second direction, opposite to the first direction, in the second configuration. The reversible flange can therefore be turned over and be fixed on the drum while being oriented in one direction or the other. Advantageously, a simple turning of the reversible flange is sufficient to modify the capacity of the drum.

[0012] Preferably, the reversible flange comprises a sleeve of axis X, in which the end section of the barrel is partially housed in the first and second configurations, the outer surface of the sleeve at least partially defining the winding surface in the first configuration or in the second configuration.

[0013] Preferably, the barrel and the sleeve are shaped so that, in the first configuration and / or in the second configuration, the end section of the barrel is partially housed in a cavity at least partially of the same shape defined by the sleeve.

[0014] In one embodiment, the end section of the barrel comprises an axial stop against which first and second axial ends of the sleeve are in axial abutment in the first and second configurations, respectively. The cheek is axially offset relative to a median transverse plane of the flange, i.e. perpendicular to the X axis and at mid-length of the flange. In other words, the cheek is not positioned at mid-length of the reversible flange.

[0015] This embodiment is advantageously particularly simple.

[0016] Preferably, the end section of the barrel defines an outer surface extending along a barrel envelope having the shape of a cone of axis X whose apex is on the side opposite the median transverse plane of the barrel relative to the end section of the barrel, and the sleeve has an inner surface shaped to extend along said barrel envelope in the first and second configurations.

[0017] Advantageously, the conical shape of the support interface of the sleeve on the barrel makes it possible to produce said axial stop, while considerably limiting the play between these parts.

[0018] In a preferred embodiment, the outer surface of the end section of the barrel defines a plurality of elementary barrel zones extending along said barrel envelope and regularly distributed around the X axis, and the sleeve defines a plurality of first elementary sleeve zones and a plurality of second elementary sleeve zones, each first elementary sleeve zone being configured to bear on a respective elementary barrel zone in the first configuration, each second elementary sleeve zone being configured to bear on a respective elementary barrel zone in the second configuration.

[0019] The shapes of the elementary barrel zones, the first elementary sleeve zones and the second elementary sleeve zones are preferably identical so as to ensure close contact between the sleeve and the end section of the barrel in the first and second configurations.

[0020] More preferably, in the first configuration, no second elementary sleeve zone bears on an elementary barrel zone, and in the second configuration, no first elementary sleeve zone bears on an elementary barrel zone. In particular, preferably, the first and second elementary sleeve zones follow one another, alternately, around the axis of the sleeve, which coincides with the X axis in the assembled position.

[0021] Preferably, the reel comprises a locking stop which, in the first and second configurations, is fixed to the barrel and bears on second and first ends of the sleeve, respectively, so that in cooperation with the barrel, the reversible flange is held axially immobile on the barrel.

[0022] Preferably, the locking stop comprises a fixing clip on the barrel, preferably a clip that can be deactivated by manual pressure, preferably by means of a thumb of a user's hand.

[0023] In particular, the locking stop comprises, in a preferred embodiment: - a claw which, in the first and second configurations, is elastically inserted into a corresponding housing of the barrel, and - a button coupled to the claw such that manual pressure on said button releases said claw from said housing.

[0024] Preferably, the reel comprises means for permanently fixing said locking stop to the reversible flange.

[0025] In a preferred embodiment, the reel comprises a locking stop permanently fixed to the barrel, preferably removable, and which, in the first and second configurations, is fixed in a deactivatable manner to the reversible flange, preferably by clipping, so as to retain the reversible flange axially immobile on the barrel.

[0026] Preferably, the locking stop comprises a connector adapted for coupling to an unwinder.

[0027] Advantageously, the locking stop thus has a function of immobilizing the reversible flange on the barrel and a function of coupling to an unwinder.

[0028] In one embodiment, at least one of the flanges, preferably each flange, defines a handle, preferably in the form of a cavity, passing through the flange or not, adapted for the insertion of a user's hand.

[0029] Advantageously, the flask can be easily handled and transported.

[0030] More preferably, a flange, preferably each flange, comprises a peripheral bumper, preferably in the form of a fold of the peripheral edge on itself.

[0031] Preferably, the reel comprises a spring configured so as to push the reversible flange, along the X axis, so as to move it away from the median transverse plane of the barrel, in at least one, preferably in each of the first and second configurations.

[0032] The spring is preferably a leaf spring. In particular, it may be made in one piece with the barrel.

[0033] The compression of the spring in said at least one, preferably in each of the first and second configurations, is counteracted by the immobilization of the reversible flange on the barrel. The spring thus advantageously contributes to the immobilization of the reversible flange. Furthermore, when the immobilization means are deactivated, the spring relaxes and pushes back the removable flange. Disassembly is thus facilitated. In particular, when the reversible flange is fixed to the barrel by means of a clip, pressing on the clip can advantageously cause the ejection of the removable flange.

[0034] Preferably finally, each of the flanges is a reversible flange.

[0035] Advantageously, the reel can thus be presented, in the assembled position, in three configurations each corresponding to a path, depending on whether the two flanges are oriented in the first direction, the two flanges are oriented in the second or the two flanges are oriented in opposite directions.

[0036] Preferably, the two side plates are identical.

[0037] Advantageously, the assembly of the reel is made easier. Manufacturing costs are also reduced.

[0038] Preferably, the barrel has at each of its ends an interface comprising a circular-shaped contact zone and a circular-shaped outer surface.

[0039] Preferably, the contact zone comprises an uninterrupted shoulder over the entire circumference of a circle.

[0040] The invention also relates to a reel comprising an unwinder and a reel according to the invention mounted on the unwinder, the coupling of the removable flange of the reel being preferably and according to the configuration of the removable flange, selectively carried out by means of a connector of said locking stop or on the barrel.

[0041] The invention also relates to a method for modifying the winding surface of a reel according to the invention, the method comprising the following steps: 1) disassembly of a said reversible flange arranged in a said first configuration, that is to say oriented in a first direction; 2) turning over the reversible flange and reassembling the reversible flange on the barrel in a so-called second configuration, that is to say by orienting it in a second direction, opposite to the first direction.

[0042] The invention also relates to a locking system for a reel as succinctly described above, in which the barrel is constituted by the assembly of two half-barrels, the locking system being remarkable in that it comprises: - a half-barrel; - a side flange, fixed coaxially to the half-barrel in a removable manner; - at least one locking clip, integrated into the half-barrel or attached to the half-barrel; and - at least one spring integrated into the half-barrel or attached to the half-barrel, the spring being adapted to keep the flange fixed to the barrel and to facilitate the disassembly of the flange.

[0043] In one embodiment, the locking clip comprises a button and a tab.

[0044] In one embodiment, the spring has the shape of a blade extending circumferentially and presenting an axial protrusion. Brief description of the figures

[0045] Other characteristics and advantages of the invention will become apparent upon examination of the description which follows and with regard to the appended drawing in which: - [Fig.l] [Fig.l] represents, in perspective, a reel according to the invention in the first configuration; - [Fig.2] [Fig.2] represents, in perspective, the reel of [Fig.l] in the second configuration; - [Fig.3] [Fig.3] illustrates the three possible configurations when the two flanges are reversible; - [Fig.4] [Fig.4] represents, in exploded view, a reel according to the invention which differs from that of [Fig.1] by the locking stops used; - [Fig.5] [Fig.5] represents, very schematically, the interior surface of the sleeve in a preferred embodiment; - [Fig.6] [Fig.6] represents, very schematically, the external surface of a section of barrel adapted to the sleeve whose surface is represented in [Fig.5]; - [Fig.7] [Fig.7] represents, in a very schematic manner, the assembly of the sleeve whose surface is represented in [Fig.5] on the external surface of the section of barrel represented in [Fig.6]; - [Fig.8] [Fig.8] illustrates the mounting of a removable flange in a preferred embodiment; - [Fig.9] [Fig.9] illustrates the mounting of a locking clip in a removable manner on the barrel, in a preferred embodiment; - [Fig. 10] [Fig. 10] is a top view of a half-barrel on which two locking clips are mounted, in a preferred embodiment; - [Fig. 11] [Fig. 11] is a detailed view of the mounting of the locking clip on the half-barrel; and - [Fig. 12] [Fig. 12] is a top view of one end of the barrel, in a preferred embodiment. Definitions

[0046] For the sake of clarity, and unless otherwise indicated, "horizontal" and "vertical", "upper" and "lower", "above" and "below", "top" and "bottom", refer to a position in which the X-axis of the reel is horizontal. The same applies to "height", measured in the vertical direction. Unless otherwise indicated, "length" is measured along the X-axis.

[0047] Unless otherwise indicated, "axial" refers to the X-axis. An axial stop of one part on another blocks the movement of that part, in one direction, along the X-axis. The axial ends of a part are the ends of that part along the X-axis.

[0048] “Radially” also refers to the X axis, unless otherwise indicated.

[0049] A "transverse" plane is a plane perpendicular to the X axis, unless otherwise specified. The median transverse plane of the shaft passes halfway along the shaft's length. The center of the shaft is halfway along the shaft's length.

[0050] A cheek is considered to extend “substantially perpendicular” to the X axis in the assembled position when the angle between the general plane of the cheek and the X axis is between 80 and 110°. Preferably, this angle is 90°.

[0051] An assembled position is a position in which the reel is operational, that is to say in which the two flanges are fixed on the barrel.

[0052] Unless otherwise indicated, "fix" implies a rigid fixation. A rigid fixation may be deactivatable, in particular so that a fixed part is removable.

[0053] The locking stop is fixed "permanently" on the barrel or on the flange when it is fixed, on the barrel or on the flange respectively, in the assembled position of the reversible flange on the barrel, but also when the reversible flange is disassembled from the barrel. Preferably, however, the locking stop is removable to be replaced if it breaks.

[0054] The fixing means are therefore active at least when the locking stop is fixed to the barrel in one of the first and second configurations and when the locking stop is not fixed to the barrel. Preferably, the fixing means can ensure said fixing, that is to say be active, selectively in each of the two said configurations.* "Comprise" or "include" or "present" must be interpreted in a non-limiting manner. Detailed description

[0055] The figures represent a reel 10 according to the invention, in an assembled position.

[0056] Preferably, the reel has: - a length Li0 greater than 5 cm, preferably greater than 10 cm or 20 cm, and / or less than 50 cm, and / or - a height hi0 greater than 20 cm, preferably greater than 30 cm or 40 cm, and / or less than 100 cm.

[0057] This reel shown is made up of a barrel 12, right and left reversible flanges, collectively called “side flanges” 14, and right and left locking stops 16. All these parts are preferably made of a plastic material, which advantageously provides lightness and good robustness.

[0058] In the assembled position of the reel, the barrel and the flanges are coaxial, aligned along an X axis.

[0059] The barrel may be in one piece. It is preferably made up of the assembly of two right and left half-barrels (see [Fig.4]; a half-barrel is also shown in [Fig.8]), which define - right 12d and left 12g end sections, respectively, preferably of the same external shape, receiving the right and left flanges, respectively, and - a central section 12c defining at least partially a winding surface E, cylindrical with a circular section.

[0060] In a preferred embodiment, the two flanges are identical. Advantageously, manufacturing costs are reduced. Furthermore, assembly is made easier, each flange being able to be mounted either on the right end section of the barrel or on the left end section of the barrel.

[0061] In a preferred embodiment, the two locking stops are also identical.

[0062] In the remainder of the description, only one of the two flanges and only one of the two locking stops is therefore described.

[0063] Each flange 14 comprises: - a hollow sleeve 18, of axis X, the volume delimited by the interior surface of the sleeve, or “light”, opening at first and second axial ends, referenced 19i and 192 respectively, by first and second openings, respectively, preferably of the same dimensions; - a cheek 20 extending radially, preferably at one of the first and second axial ends 19i and 192 of the sleeve, in this case, in [Fig.4], at the second end 192 of the sleeve.

[0064] In the embodiment shown, the sleeve has - an inner surface Sii8 adapted for mounting on an end section of the barrel, preferably on any one of the end sections of the barrel, in each of the first or second configurations, and - an external surface Sei8 generally cylindrical with a circular section, intended to define, at least partially, the winding surface E in one of the first and second configurations.

[0065] In order for an end section of the barrel to be able to be inserted into the sleeve through any one of the two openings of the sleeve, to selectively achieve the first configuration and the second configuration, the inner surface Si[8 may be cylindrical, for example of circular section, of axis X, and substantially identical to the outer surface of the end section of the barrel.

[0066] Preferably for each end section, the barrel preferably defines a shoulder constituting an axial stop limiting the movement, towards the median transverse plane P of the barrel, of the sleeve fixed on an end section. The shoulder may in particular be at the transition between the central section of the barrel and said end section. The shoulder is preferably an annular shoulder of axis X, preferably extending all around the axis X, preferably radially.

[0067] A cylindrical inner surface Si[8 of axis X leads, however, in the assembled position of the reel to a functional clearance between the reversible flange and the end section of the barrel on which the flange is mounted. This results in accelerated wear. The manufacture of the sleeve by molding plastic material is also delicate, due to the lack of a clearance angle.

[0068] Preferably, the inner surface Si[8 and the outer surface Sei2 of the end section of the barrel are designed so that, in the assembled position, they bear on each other according to a conical bearing interface, that is to say extending according to a barrel envelope C in the form of a cone of axis X, the apex of the cone being on the opposite side of the barrel relative to the flange. Such a support can be called a “conical support”.

[0069] Preferably, the end section of the barrel comprises radial barrel teeth 22, regularly distributed around the axis X and defining said conical support interface.

[0070] The end section of the barrel preferably comprises more than 3 and / or less than 9, preferably less than 7, preferably less than 5 barrel teeth. The barrel teeth are preferably all identical. They are separated by barrel notches 24.

[0071] The circumferential length of the barrel teeth, i.e. measured by following the outer contour of the end section in a cross-section, is preferably substantially identical to the circumferential length of the barrel crenellations. Preferably, this outer contour thus has a regularly crenellated shape, i.e. which, if it were unrolled, would be similar to a square signal.

[0072] A shaft tooth, preferably each shaft tooth, preferably has the same circumferential length, regardless of the transverse section plane considered. In other words, when a shaft tooth is observed radially, it preferably has a trapezoidal shape, two of the sides of this shape approaching each other when moving away from the median transverse plane of the shaft, due to the taper.

[0073] The surface of the end section which defines said conical support interface is thus made up of a plurality of identical elementary barrel zones Z, regularly distributed around the periphery of the end section, and having a generally trapezoidal shape when observed radially.

[0074] The inner surface Si[8 of the sleeve defines, for each elementary barrel zone Z, first and second elementary sleeve zones Zi and Z2 defining said conical support interface in the first and second configurations, respectively. The first and second elementary sleeve zones follow one another at the circumference of the sleeve around the axis X.

[0075] The first elementary sleeve zones follow one another on the surface of a first cone-shaped envelope Ci, and the second elementary sleeve zones follow one another on the surface of a second cone-shaped envelope C2, the first and second envelopes merging with the barrel envelope C in the first and second configurations, respectively. The inner surface of the sleeve thus has a “double conicity”, the two virtual conical envelopes Ci and C2 pointing towards each other in the manner of a diabolo, and interpenetrating.

[0076] The half-angles at the apex of the barrel envelope C and of the first and second virtual conical envelopes Ci and C2 are identical and preferably greater than 0.5°, preferably greater than 1°, preferably greater than 2°, and / or less than 20°, preferably less than 10°.

[0077] All the first elementary sleeve zones Zi are preferably identical. All the second elementary sleeve zones Z2 are preferably identical.

[0078] Each first elementary sleeve zone is shaped so as to bear on a respective elementary section zone in the first configuration, each second elementary sleeve zone then facing a barrel notch.

[0079] Each second elementary sleeve zone is shaped so as to bear on a respective elementary section zone in the second configuration, each first elementary sleeve zone then facing a barrel notch.

[0080] Figures 5 and 6 illustrate, very schematically, this preferred embodiment, in the variant where the end section of the barrel only has two barrel teeth 22.

[0081] [Fig. 5] represents the inner surface of the sleeve (what appears as a hollow is therefore projecting towards the inside of the sleeve). For reasons of clarity, this surface has been drawn as if it were opaque. In particular, the first and second conical envelopes, referenced Ci and C2, respectively, and the first and second elementary sleeve zones, referenced Zi and Z2, respectively, are distinguished.

[0082] [Fig.6] represents a part of the outer surface of the barrel, and in particular the outer surface of the barrel section 12g. We distinguish the barrel envelope C, conical with axis X, and the elementary barrel zones Z.

[0083] [Fig.7] illustrates the assembly of the flange on the barrel section, this representation being possible whether the inner surface of the sleeve is as shown in [Fig.5], or whether it is reversed, provided that the sleeve is turned a quarter turn around the X axis.

[0084] The sleeve can thus be in conical support in each of the two configurations. When mounting the sleeve on the barrel, the orientation of the sleeve around the X axis must however be adapted to the chosen configuration.

[0085] Preferably at least one first elementary sleeve zone, preferably each first elementary sleeve zone, and / or at least one second elementary sleeve zone, preferably each second elementary sleeve zone has(have) a surface area greater than 1 cm2, preferably greater than 5 cm2 and / or less than 100 cm2

[0086] In one embodiment, one, preferably each first elementary sleeve zone, and / or one, preferably each second elementary sleeve zone is / are defined by a plurality of longitudinal ramps 21.

[0087] The shapes of the inner surface of the sleeve and the outer surface of an end section of the barrel, preferably of each end section of the barrel, are preferably adapted to ensure a rotational coupling, about the X axis, of the sleeve and the barrel. In particular, the coupling may result, conventionally, from a tangential stop between a protrusion of material on the outer surface of the barrel section and a cavity, or another protrusion, on the inner surface of the sleeve, or vice versa.

[0088] The double conicity advantageously makes it possible to create such a tangential stop.

[0089] The cheek 20 preferably has the shape of a flat washer, that is to say a discoidal part pierced in its middle, extending radially relative to the axis X from the outer surface of the sleeve, the height h of the washer, measured from the outer surface of the sleeve, being preferably greater than 5 cm and less than 50 cm.

[0090] The surface which, in the assembled position of the reel, illustrated in Figures 1 to 4, extends between the cheeks, is called the “winding surface” E.

[0091] In an illustrated embodiment, the winding surface is partially defined by the central section of the barrel (fraction E^) and, depending on the configuration of the flanges, by one or both sleeves of the reversible flanges (fraction Ei8). The winding surface might not be defined, even partially, by the barrel.

[0092] The winding surface is preferably substantially smooth to the touch, and preferably of generally cylindrical shape, preferably of circular section.

[0093] The length LEi8 of the fraction Ei8 is preferably greater than 1 cm, preferably greater than 2 cm, preferably greater than 3 cm, and / or less than 20 cm, preferably less than 10 cm.

[0094] The length LE of the winding surface, measured along the X axis, is called “track”.

[0095] The outer surface Sc,8 of the sleeve defines, at least partially, the winding surface E in one of the configurations. In this configuration, the length of the sleeve determines the distance between the median transverse plane P of the barrel and the cheek of the flange, and therefore determines the track.

[0096] In order for a reversible flange to be able to change the track, the position of the cheek, along the X axis, can be any, except at mid-length of the flange. Preferably, the cheek is positioned at one of the ends of the sleeve, that is to say that the sleeve only projects from one side of the cheek.

[0097] In the first and second configurations, one of the end sections of the barrel is inserted into the sleeve of the reversible flange. Advantageously, the sleeve contributes to the stability of the reversible flange on the barrel.

[0098] At its periphery, the peripheral edge of the cheek of a flange is folded back on itself, so as to form a bumper 26. The bumper is adapted to the dimensions of the drum and to the cable it receives. Preferably, it is designed so that the drum loaded with cable withstands, without deforming plastically, a fall of 1 meter onto a concrete floor.

[0099] The periphery of the cheek of a flange may also define a cavity forming a handle 27, into which a user can partially insert his hand to grasp the flange or, after assembly, the reel.

[0100] The reversible flanges are removable, that is to say they can be detached from the barrel, preferably manually, preferably without an instrument.

[0101] Preferably, each reversible flange is fixed to the barrel by being sandwiched between a stop formed by the barrel, on the side of the median transverse plane P, and a locking stop 16, itself fixed to the barrel, through the flange.

[0102] The locking stop 16 can immobilize the reversible flange on the barrel by simply pressing on the flange.

[0103] Preferably, however, the locking stop is fixed to the reversible flange, preferably permanently, which limits the risk of losing the locking stop.

[0104] The locking stop is preferably clipped onto the barrel, at least one claw 28 of the locking stop preferably being inserted elastically into a housing of the barrel, the deactivation of the clip preferably resulting from pressing a button 30 actuating the claw so as to release it from its housing.

[0105] In one embodiment, the fixing of the locking stop on the barrel results from the insertion of a finger into a housing, preferably a finger of the locking stop into a housing of the barrel. The housing preferably opens tangentially, that is to say that the finger must be moved following the circumference of the barrel, in particular by rotation of the flange around the X axis, to enter the housing.

[0106] The shape of the locking stop is not limited.

[0107] In one embodiment, illustrated in Figures 3 and 4, the locking stop 16 preferably has the shape of a plate, preferably the shape of a washer, having a small thickness, preferably less than 10 mm, preferably less than 5 mm, and which, in the first and second configurations, extends substantially radially.

[0108] Preferably, when viewed from the front, the locking stop 16 has dimensions substantially identical to those of the openings of the sleeve, so that, in the assembled position of the reel, it substantially completely closes off a said opening. When it is fixed to the end of the sleeve which carries the cheek, it preferably extends substantially in the extension of the cheek, that is to say is flush with the plane of the cheek. The risk of snagging during handling of the reel is advantageously limited.

[0109] When viewed from the front, the locking stop 16 preferably has a width and a height greater than 20 mm, preferably greater than 30 mm, preferably greater than 50 mm, and / or less than 100 mm. Advantageously, the risk of losing the locking stop 16 is reduced.

[0110] In one embodiment, illustrated in Figures 1 and 2, the locking stop 16 is fixed to the barrel, preferably permanently, and is fixed to the flange, preferably by clipping. The locking stop cannot therefore be lost.

[0111] Preferably, the locking stop 16, preferably made of the same material as the barrel or permanently fixed to the barrel, is fixed to the reversible flange by elastic insertion of tabs 29 into corresponding housings 31 of the reversible flange. Preferably, the barrel comprises, for each tab 29, a button 33 to release the tab from its housing and thus allow extraction of the reversible flange. The assembly formed by a button 33 and its associated tab 29 is hereinafter referred to as a locking clip.

[0112] In one embodiment, the locking clips 29, 33 can be integrated either on the locking stop or on the barrel 12.

[0113] In a preferred embodiment illustrated in [Fig.9], the locking clips 29, 33 are independent additional parts attached to the barrel 12, being fixed in a removable manner to the barrel 12, so that they can be replaced in the event of breakage.

[0114] For example, two locking clips 29, 33 can be installed per half-barrel. In a preferred embodiment illustrated in [Fig. 10], the two locking clips 29, 33 are arranged diametrically opposite each half-barrel.

[0115] Once mounted on the half-barrel, each locking clip 29, 33 abuts against this half-barrel, which prevents the clip from jumping under the pressure of the cable or during incorrect handling.

[0116] In a preferred embodiment illustrated in [Fig.l 1], the dismantling of the locking clips 29, 33 is carried out safely thanks to a window (marked by the arrow in the drawing) allowing a screwdriver or any other similar tool to be superficially inserted without the risk of perforation which could injure the user.

[0117] In a preferred embodiment, a spring 35 ([Fig.8]) opposes the progression of the flange along the X axis at the end of the insertion of the flange on the barrel. The operator must therefore push the flange, along the X axis, to counter the action of the spring before being able to activate the locking, for example insert the finger or the tab 29 into the corresponding housing. The mounting of the locking stop by inserting a finger into a housing opening tangentially therefore requires that the operator elastically pushes the flange towards the barrel and then rotates the flange relative to the barrel, around the X axis, in order to introduce the finger into the housing.

[0118] After releasing the thrust on the flange, the spring presses the finger or tab 29 against the corresponding housing, which advantageously contributes to maintaining the locking stop, and therefore the flange, in the assembled position. In addition, the action of the spring makes it possible to push back and lift the flange slightly as soon as the finger or tab 29 is released from its housing, which facilitates disassembly, because it allows the user to release the locking clips 29, 33 and grasp the flange to be disassembled.

[0119] In a preferred embodiment, four springs 35 are positioned at the base of each half-barrel, being equally distributed around its circumference. The springs 35 may be integrated into the half-barrel, or be added parts, for example made of plastic or metal.

[0120] The locking stop preferably comprises a connector adapted for coupling to an unwinder, preferably an unwinder of the “Mobiway” (registered trademark) MOB or “Mobiway” (registered trademark) ROL type. The connector is adapted to the unwinder.

[0121] The connector may in particular be constituted by a set of teeth 32 shaped and arranged so as to be able to mesh with a pinion of such an unwinder. The set of teeth preferably comprises between 4 and 32 teeth.

[0122] Depending on the configuration of the reversible flange, the unwinder can be coupled to the connector or directly to the drum.

[0123] In one embodiment, the drum also includes a connector and coupling the reel to the unwinder implements the connector of the locking stop in one of the first and second configurations, for example in the second configuration, and implements the connector of the drum in the other of the first and second configurations.

[0124] Furthermore, the temporary disassembly of a reversible flange advantageously makes it possible to mount an already formed toroidal cable winding, or “cable crown”, by insertion on the barrel.

[0125] The crown may in particular have a length, measured along the axis of the crown, greater than 5 cm and / or less than 30 cm, preferably less than 20 cm, preferably less than 10 cm. The mass of a crown can be greater than 10 kg, greater than 15 kg, greater than 20 kg, and / or less than 35 kg.

[0126] The cable may comprise one or more electrical wires insulated from each other, in particular three wires. The cable may in particular be of the 3G 1.5 or 3G 2.5 type.

[0127] The crown may comprise more than 10 m, more than 30 m, more than 50 m, or even more than 100 m and / or less than 200 m of cable.

[0128] Depending on the track, one or more rings can be mounted on the drum. Mounting several rings makes them easier to store. Furthermore, when a ring has been unwound, it is advantageous to reduce the track to adapt it to the ring(s) still mounted on the drum. For efficient unwinding of the cable, it is indeed necessary for the ring being unwound to be held laterally. According to the invention, the lateral support of a ring can be ensured - by the two cheeks when only one ring is mounted on the drum, - by a cheek and an adjacent ring, when only two rings are mounted on the drum or when the drum carries more than two rings and the unwound ring is adjacent to a cheek, or - by two adjacent rings.

[0129] According to the invention, a reversible flange can be mounted on the barrel "in both directions", by being inserted and fixed on the barrel by the end 192 of the sleeve on the cheek side (arrow F2) or by the opposite end 191 (direction opposite to that of arrow F2).

[0130] The two directions of orientation Oi and O2 of the flange 14, corresponding to its orientation in the first and second configurations, respectively, are illustrated in FIGS. 1 and 2.

[0131] An orientation of the flange in the first direction leads to a first configuration in which the cheek is in a position close to the median transverse plane P, the sleeve being outside the winding region between the two cheeks. An orientation of the flange in the second direction leads to a second configuration in which the cheek is in a position spaced from the median transverse plane P, the sleeve defining, preferably partially, the winding surface S between the two cheeks.

[0132] Preferably, each of the side plates is a reversible plate that can be fixed to the barrel while being oriented in each of the two directions. When the two plates are in their respective first configuration, the path is minimal, as illustrated by the embodiment “S” in [Fig. 3]. When the two plates are in their respective second configuration, the path is maximal, as illustrated by [Fig. 2] and by the embodiment “L” in [Fig. 3]. When one of the plates is in its first configuration and the other plate is in its second configuration, the track is average, as illustrated by [Fig.2] and by the embodiment “M” in [Fig.3]. The reel can thus have three different tracks.

[0133] The operation of the reel follows directly from the preceding description.

[0134] The two half-barrels are fixed to each other, preferably clipped onto each other. Preferably, at least one half-barrel has elastic tabs which snap into corresponding housings provided in the other half-barrel, by simply bringing the two half-barrels together along the X axis (see Figure 8A).

[0135] Each of the reversible flanges is then mounted according to the same procedure:

[0136] The sleeve of the reversible flange is slid, along the X axis, onto an end section of the respective barrel, and pushed towards the median transverse plane P until it comes into contact with this end section. Depending on whether the first or second configuration is chosen, the first or second elementary sleeve zones then fit the elementary barrel zones, which considerably limits the play between the end section of the barrel and the sleeve. The movement of the flange towards the median transverse plane of the barrel is stopped.

[0137] The distance between the sleeve cheek and the median transverse plane is a function of the sleeve orientation.

[0138] Whether the flange is inserted by one or the other of its axial ends, the barrel is accessible, through the opening of the flange on the side opposite the median transverse plane of the barrel. A locking stop can then be fixed on the barrel, preferably by clipping. It thus comes, with the barrel, to sandwich the reversible flange and immobilize it along the X axis (figures 3 and 4).

[0139] Alternatively (figures 1 and 2), the tabs 29 permanently fixed to the barrel enter elastically into the housings 31.

[0140] [Fig.8] illustrates the attachment of a removable flange 14 in a preferred embodiment.

[0141] Elastic tabs 29 are mounted on the half-barrel shown. In Figure 8A, the tabs are dismantled, and are therefore not shown. The removable flange 14 is pushed by the operator onto the half-barrel until it comes into contact with the spring 35 (Figure 8B).

[0142] The spring 35 has the shape of a blade extending circumferentially and, in the embodiment shown, has an axial protrusion 37 (Figure 8A). The operator continues to insert the removable flange against the thrust of the spring until the removable flange is in axial abutment on the half-barrel (Figure 8C). At this moment, the tabs 29 penetrate elastically into the housings 31 and prevent the removable flange from becoming detached. The pressure of the spring 35 considerably improves the retention of the removable flange, by eliminating any axial play.

[0143] To dismantle the removable flange 14, the operator pushes on the tabs 29 to release them from the housings 31. The spring 35 then pushes the removable flange back, which facilitates its dismantling.

[0144] The second reversible flange is mounted on the barrel like the first flange, its orientation being chosen according to the desired path.

[0145] Preferably, one or more cable rings is / are mounted on the drum before assembly of the second reversible flange. Alternatively, in an embodiment which is not preferred, the second flange can be fixed on the drum, then the cable wound on the drum.

[0146] The cable may in particular be an electric cable.

[0147] The reel itself can be mounted on an unwinder.

[0148] One or both flanges can be removed to modify the track, for example to add a cable ring or to adapt the track to the number of rings still on the drum. To this end, simply press the buttons 30 or 33 immobilizing the locking stop to release the locking stop. The reversible flange can then be extracted, turned over, and then reassembled.

[0149] After use, the reel can be completely or partially dismantled. Its size can thus be considerably reduced.

[0150] The double-conical shape of the inner surface of the sleeves advantageously allows the flanges to be stacked with reduced bulk.

[0151] Disassembly also makes it possible to replace one of the parts making up the reel, in particular a part that has been damaged. The quantity of waste generated is thus limited.

[0152] As is now clearly apparent, a reel according to the invention has a remarkable adaptability.

[0153] Of course, the invention is not limited to the embodiment described and shown.

[0154] In particular, each of the characteristics described previously for a reversible flange is optionally applicable to each reversible flange when the reel comprises two reversible flanges.

[0155] Furthermore, the person skilled in the art has no difficulty in imagining other means for fixing a reversible flange to the barrel, or for defining a winding surface. The shape of the cheeks is not limited, all known cheek shapes being envisaged.

[0156] Preferably, as in the preferred embodiments described in detail, a reversible flange, preferably each reversible flange, abuts in both orientations, i.e., whether mounted by one end of the sleeve or by the opposite end. Along the X axis, the position of the reversible flange is therefore unique.

[0157] However, in one embodiment, a reversible flange, preferably each reversible flange, can be fixed, on the same side of the median transverse plane, in two or more than two positions, which makes it possible to multiply the possible routes.

[0158] In an embodiment not shown, the cheek of a reversible flange is not positioned at an axial end of the sleeve.

[0159] The reel according to the invention is adapted to interface with accessories which aim to improve its use.

[0160] To this end, as shown in [Fig. 12], the barrel 12 has at each of its two ends an interface comprising, on the one hand, a contact zone 120 and on the other hand, an exterior surface 122.

[0161] In a preferred embodiment, the contact area 120 and the outer surface 122 are circular in shape. This allows an accessory to be held in position once it is unlocked from the interface of the barrel 12.

[0162] In a preferred embodiment, the contact zone 120 comprises an uninterrupted shoulder 124 over the entire circumference of a circle. This makes it possible to reinforce the rigidity of the interface of the barrel 12. This also makes it possible to avoid using materials having a rigidity greater than those usually used and to not require adding a stiffening element, nor modifying the material used.

Claims

Claims

1. Drum (10) comprising a barrel (12) with axis X and two lateral flanges (14) which, in an assembled position of the drum, are fixed coaxially to said barrel, each lateral flange comprising a cheek extending substantially perpendicular to the axis X in said assembled position, the cheeks of the two lateral flanges delimiting a winding surface (E) for a cable, at least one of said lateral flanges, called "reversible flange", being assemblable on an end section (12d, 12g) of the barrel according to first and second configurations in which the position of the cheek (20) of said reversible flange along the axis X is different, first and second different volumes thus being provided for winding the cable between the two lateral flanges in the first and second configurations, respectively, the transition from the first configuration to the second configuration including a reversal of the reversible flange.

2. A reel according to claim 1, in which the reversible flange comprises a sleeve of axis X in which the end section of the barrel is partially housed in the first and second configurations of the reversible flange, the outer surface of the sleeve at least partially defining said winding surface (E) in the first configuration or in the second configuration.

3. Reel according to the immediately preceding claim, in which the end section of the barrel defines an outer surface (Sei2) extending along a barrel envelope (C) having the shape of a cone with axis X whose apex is on the side opposite the median transverse plane of the barrel (P) relative to the end section of the barrel, and the sleeve has an inner surface (Sii8) shaped so as to extend along said barrel envelope (C) in the first and second configurations.

4. Reel according to the immediately preceding claim, in which the outer surface (Sei2) of the end section of the barrel defines a plurality of elementary barrel zones (Z) extending along said barrel envelope (C) and regularly distributed around the axis X, and the sleeve defines a plurality of first elementary sleeve zones (Zi) and a plurality of second elementary sleeve zones (Z2), each first elementary sleeve zone being configured to bear on a respective elementary barrel zone in the first configuration, each second elementary sleeve zone being configured to bear on a respective elementary barrel zone in the second configuration.

5. A reel according to the immediately preceding claim, in which, in the first configuration, no second elementary sleeve zone bears on an elementary barrel zone, and in the second configuration, no first elementary sleeve zone bears on an elementary barrel zone.

6. A reel according to any one of the two immediately preceding claims, in which the first and second elementary sleeve zones follow one another, alternately, around the axis (X) of the sleeve.

7. A reel according to any one of the preceding claims, comprising a locking stop (16) which, in the first and second configurations, is fixed to the barrel and bears on second (192) and first (191) axial ends of the sleeve, respectively, so that in cooperation with the barrel, the reversible flange is held axially immobile on the barrel.

8. A reel according to the immediately preceding claim, wherein the locking stop (16) comprises: - a claw (28) which, in the first and second configurations, is elastically inserted into a corresponding housing of the barrel, and - a button (30) coupled to the claw so that manual pressure on said button releases said claw from said housing.

9. Reel according to any one of the two immediately preceding claims, comprising means (29, 31) for fixing said locking stop to the reversible flange, said fixing means being active when the locking stop (16) is fixed to the barrel in one of the first and second configurations and when the locking stop (16) is not fixed to the barrel.

10. A reel according to any one of claims 1 to 6, comprising a locking stop (16) permanently fixed to the

11.

12.

13.

14.

15.

16.

17. barrel and which, in the first and second configurations, is fixed in a deactivatable manner on the reversible flange, so as to retain the reversible flange axially immobile on the barrel. Reel according to any one of the preceding claims, comprising a spring configured so as to push the reversible flange, along the X axis, so as to move it away from the median transverse plane (P) of the barrel, in at least one of the first and second configurations. Reel according to any one of the preceding claims, in which each flange comprises a peripheral bumper (26) in the form of a fold of the peripheral edge on itself. A reel according to any preceding claim, wherein each of the side flanges is a reversible flange. Reel according to the immediately preceding claim, in which the two side plates are identical. A reel comprising a reel according to any one of the preceding claims and a cable wound around the winding surface (E). Unwinder comprising an unwinder and a reel according to any one of claims 1 to 14 mounted on the unwinder, the coupling of the removable flange of the reel to the unwinder being, depending on the configuration of the removable flange, selectively carried out by means of a connector (32) of the locking stop or on the barrel. Method for modifying the winding surface (E) of a reel according to any one of claims 1 to 14, the method comprising the following steps: 1) disassembly of a said reversible flange arranged in a said first configuration; 2) turning over the reversible flange and reassembling the reversible flange on the barrel in a so-called second configuration.

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