• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a module for separating an optical cable (13) containing at least one optical fiber (14), comprising a housing (22) into which the optical cable (13) enters through an inlet duct (221). and from which said at least one optical fiber (14) exits through an outlet duct (222), said optical fiber (14) being separated from the cable (13) inside the housing (22). The module also comprises guide means configured and arranged inside the box (22) such that the optical fiber (14), separated from the optical cable (13), is arranged inside the box (22). around the guide means, to form, between its entry into the box and the outlet of the box, a loop the length of which can vary between a minimum value and a maximum value without subjecting the fiber (14) to bending stresses which may cause an alteration of its structure and / or its functioning.
    公开号:CH712677B1
    申请号:CH00855/17
    申请日:2017-06-30
    公开日:2021-04-15
    发明作者:Schuepbach Olivier；Dardel Boris；Reynaud Didier
    申请人:Nexans；
    IPC主号:
    专利说明:

    FIELD OF THE INVENTION
    The invention relates to the general field of optical fiber cables. It relates more particularly to the field of termination elements for multifiber cables.
    BACKGROUND OF THE INVENTION - PRIOR ART
    To achieve the connection of optical fiber cables to equipment it is necessary to separate them from each other, so that each fiber can travel freely to the equipment to which it must be connected.
    [0003] Once separated from the other fibers, each fiber continues its way inside a protective sheath, generally individual.
    Generally the separation of the fibers of the same cable is carried out through a separation module 11, such as that illustrated schematically in Figures 1 and 2, the function of which is, precisely, to protect the fibers 14 in the cable separation zone 13, which is located at the end of the latter.
    [0005] Such a module11 generally comprises a housing 12 delimiting a cavity 123, comprising an inlet duct 121 through which the non-stripped cable 13 enters the cavity 123 and a plurality of outlet ducts 122, opening into the cavity 123, from which the sheaths 15 depart inside which the individualized fibers 14 are inserted. The cavity 123 defines the space inside which the fibers 14 of the cable 13 are separated from each other and pass through the orifice of the cable. inlet duct 121 to the orifices of the outlet ducts 122.
    [0006] The box 12 is also generally dimensioned such that the cavity 123 can allow the separation of the cable 13 and the routing, as direct as possible, of each of the fibers 14 towards the outlet duct 122 which is allocated to it.
    [0007] The non-stripped end of the cable 13 as well as the ends of the sheaths 15 which protect the individualized fibers14, after their exit from the module 11, are generally fixed to the housing at the level of the inlet 121 and outlet 122 ports so not to become detached from the latter and not to create, at the level of the inputs and outputs of the box 12, zones in which the fibers 14 are unprotected. Furthermore, the other end of each of the protective sheaths 15 (not shown in FIGS. 1 and 2) is generally fixed to the housing of the connector element which makes it possible to connect the corresponding fiber 14 to the corresponding equipment, which makes the optical fiber considered mechanically integral with its protective sheath at this end.
    It is known that, due to the difference in their respective coefficients of expansion as a function of temperature, a drop in ambient temperature can cause a shortening of the protective sheath 15 of the fiber 14 greater than the shortening affecting the fiber 14 housed therein.
    Conversely, an increase in the ambient temperature can cause an elongation of the protective sheath 15 greater than the elongation affecting the fiber 14, as well as a retraction of the sheath following the release of the mechanical stresses frozen during manufacture. of it (post-withdrawal).
    As a result, to prevent the fiber from being damaged (stretched or twisted) due to the stresses induced by the variation in the length of the sheath 15, it is necessary to provide space arrangements allowing the fiber, to a certain extent, to find its place without undergoing deformation, curvature, or stretching, even as the length of the sheath 15 varies appreciably with respect to the length of the fiber 14.
    As part of the establishment of a separation module 11, the problem of varying the length of the sheath is partially resolved due to the presence of the cavity 123 of the housing 12 of the module into which open individualized optical fibers. Indeed, a fiber 14 not being mechanically secured to its protective sheath 15 at this end of the sheath, a sliding of the fiber 14 inside its protective sheath 15 is possible.
    Thus, when the sheath 15 enveloping a fiber 14 retracts, the fiber slides in the sheath and the length of fiber can no longer be housed in the sheath attempts to deploy loosely in the cavity 123 of the housing 12 module , as illustrated in FIG. 2. However, insofar as the dimensions of the box 12 are generally as small as possible, the space of the internal cavity of the module is relatively small.
    As a result, the possibilities of deployment of the fibers 14 in the cavity 123 of the housing are also restricted and when an optical fiber 14 is forced to deploy in the cavity 123, it can be subjected, in contact with the walls of the cavity or other optical fibers, curvature stresses liable to damage it, this risk being all the greater as the number of fibers 14 deployed in the cavity is greater.
    PRESENTATION OF THE INVENTION
    An object of the invention is to provide a solution making it possible to take into account, at the level of a separation module of an optical cable 13, the variations in length of the protective sheaths 15 in which the optical fibers 14 constituting the cable 13 are inserted after their deployment in the module.
    Another object of the invention is to ensure that this taking into account is done without affecting the dimensions of the separation module.
    To this end, the invention relates to a module for separating an optical cable containing at least one optical fiber comprising a housing in which the optical cable enters through an inlet duct and from which said at least one optical fiber exits through an outlet duct; said optical fiber being separated from the cable inside the box. According to the invention, the module also comprises guide means configured and arranged inside the box such that the optical fiber, separated from the optical cable, is arranged inside the box around the guide means, to form, between its entry into the box and the outlet of the box, a loop the length of which can vary between a minimum value and a maximum value without subjecting the fiber to curvature constraints which may cause an alteration of its structure and / or its operation.
    According to various arrangements that can be considered alone or in combination with each other, the device according to the invention can include various technical characteristics. Thus: According to a particular, non-exclusive embodiment of the module for separating an optical cable according to the invention, said optical cable comprising a plurality of optical fibers which are separated in the module into a plurality of individualized optical fibers, the The housing has an inlet duct and a plurality of outlet ducts. Said conduits pass through the wall of the box and open into an internal cavity, with one face forming a bottom bounded by a side wall and an open opposite face. The guide means comprise a structure placed in the internal cavity delimiting a circular central exclusion zone and an external zone extending between the central exclusion zone and the wall of the cavity. The optical fibers are deployed in the outer zone so as to form loops around the central zone.
    According to a first configuration characteristic, the separation module of an optical cable according to the invention further comprises a flat retaining element, limited by an outer edge, configured so as to be able to be inserted into the cavity by the open face of the latter and to be attached, removably, to said structure delimiting said central exclusion zone. The retaining element has a shape and dimensions defined so as to tangent laterally, via its outer edge, the side wall of the cavity.
    In other words, the retaining element has a shape and dimensions defined so that its outer edge is flush with the side wall of the cavity.
    [0020] According to another characteristic, the separation module according to the invention further comprises a cover configured to removably close the internal cavity of the housing.
    [0021] According to yet another characteristic, the cover of the separation module according to the invention comprises on its internal face placed opposite the cavity one or more projecting zones ensuring the lateral retention of the cover relative to the housing.
    In a particular embodiment, the cover of the separation module according to the invention comprises, on its internal face, a projecting rectangular area configured to be housed in the cavity of the housing and to bear on the wall of the cavity when the cover is placed on the box
    According to a particular embodiment, the housing cavity comprises a barrel provided with ribs arranged in the center of the cavity perpendicularly to the bottom of said cavity. In addition, said barrel, the retaining element and the cover each have a circular opening arranged such that the cover can be fixed to the housing of the module, by means of a screw which is screwed inside the housing. cannon.
    According to a particular characteristic, the barrel having ribs arranged at an angle, the diameter of the circular opening of the retaining element is defined such that when the retaining element is placed in the cavity, it is held in place by wedging the edge of its circular opening against the ridges of the ribs of the barrel.
    According to another particular embodiment, the structure delimiting the central exclusion zone of the cavity comprises at least four cylindrical studs arranged on the periphery of the exclusion zone, at least two studs being placed on the axis longitudinal of the cavity, facing each other, and two other studs being placed on the transverse axis of the cavity facing each other. The retaining element further comprises circular holes arranged so that they can each be inserted simultaneously around a stud when the retaining element is put in place on the structure delimiting said exclusion zone, the number of holes formed. on the retaining element being equal to the number of studs in the cavity.
    According to another particular characteristic of the separation module according to the invention, the inlet duct is dimensioned so that the optical cable can be inserted therein and that each outlet duct is dimensioned so that a protective sheath of optical fiber can be inserted therein.
    According to a particular configuration, the inlet duct comprises an extension which extends outside the housing and on which is mounted a sleeve ensuring the maintenance in position of the optical cable inside the inlet duct during the installation of said cable.
    [0028] According to a particular characteristic, the case, the retaining element and the cover are made of plastic, preferably of ABS.
    A subject of the invention is also a method for carrying out the separation of an optical cable comprising a plurality of optical fibers into as many individual optical fibers by means of the separation module according to the invention, which comprises at least the steps following:a first step during which the end of the cable is inserted into the inlet duct of the module box,a second step during which a protective sheath is inserted into each of the outlet conduits of the module housing, the end of each sheath being fixed in the corresponding conduit;a third step during which the cable is stripped over a given length so as to insulate the various optical fibers from each other;a fourth step during which the end of each of the fibers is inserted into the corresponding outlet duct, each fiber being placed in the cavity of the module housing so that it makes a loop of a given diameter around the area exclusion of the cavity before leaving the cavity; the first and second stages can be reversed.
    DESCRIPTION OF FIGURES
    The characteristics and advantages of the invention will be better appreciated thanks to the following description and to the associated figures which show:Figures 1 and 2, two schematic representations of a separation box according to the prior art;FIG. 3, a schematic representation showing an exemplary embodiment of the housing of the separation module according to the invention;FIG. 4, a schematic representation showing an exemplary embodiment of the element for maintaining the separation module according to the invention;FIG. 5, a schematic representation showing the elements illustrated by FIGS. 3 and 4 mounted one on top of the other;FIG. 6, a schematic representation showing an exemplary embodiment of the cover of the housing of the separation module according to the invention according to a plan view of the internal face and a view in longitudinal section along an axis A-A;FIG. 7, the schematic illustration of a method of fixing the optical cable to the separation module according to the invention.FIG. 8, an illustration showing all of the elements illustrated by FIGS. 3 to 6 assembled to form the separation module according to the invention.
    It should be noted that the various elements shown in the figures are not necessarily shown to scale, the purpose of these illustrations being simply to facilitate understanding of the invention.
    It should also be noted that whatever the figure, the same functional element is identified, unless otherwise necessary, by the same numerical or alphanumeric sign.
    DETAILED DESCRIPTION
    The exemplary embodiment of the separation module according to the invention described in the remainder of the text makes it possible to demonstrate the advantageous characteristics of the invention. The presentation of this exemplary embodiment is obviously not intended to limit the scope or extent of the invention to this single embodiment.
    As illustrated in Figures 3 to 8, the separation module 21 according to the invention mainly comprises a housing 22, a retaining element 23 and a cover 24.
    The housing 22, of elongated shape, preferably parallelepiped, defines an internal cavity 223 parallelepiped having a bottom 224 bordered by an internal wall 225 and an open face vis-à-vis the bottom. The box 22 also includes communication conduits which enter the box and open into the internal cavity 223: an inlet conduit 221 and a plurality of outlet conduits 222.
    In a preferred embodiment, the module 21 being of parallelepiped shape, the housing 22 has two end faces 226 and 227 at which the inlet duct 221 and the outlet ducts 222 respectively open, as well as two faces lateral parallel to the longitudinal axis 25 of the housing 22.
    It should be noted that in Figures 3 to 6, the number of outlet ducts 222 shown is deliberately limited for reasons of intelligibility of the figures. In practice, this number is in reality a function of the number of fibers 14 contained in the optical cable 13 from which the separation is carried out.
    According to the invention, the box 22 also comprises a structure placed on the bottom of the cavity 223 and extending from the bottom of the cavity towards the open face of the box, the function of which is to define an exclusion zone , preferably substantially circular, in the center of the cavity. This central zone 26, materialized by the dotted line circle 261, constitutes a zone of the cavity 223 inside which the optical fibers 14 cannot be deployed and around which they make a loop before leaving the cavity 223. , as shown in figure 3.
    In Figure 3, for reasons of clarity, a single optical fiber 14 shown in solid lines, appears as it is placed in the housing 22 of the module 21 according to the invention. However, it will appear obvious to a person skilled in the art that all of the optical fibers deployed in the box 22 are arranged in a similar manner by making a loop around the central zone 26.
    According to the invention, the diameter of the central zone 26 is defined such that the loop effected by a fiber 14 is greater than or at least equal to the minimum diameter of curvature acceptable for the fiber. By minimum acceptable diameter is meant a minimum diameter for which the fiber undergoes a curvature which does not cause irreversible degradation of its structure or of its optical properties.
    In practice, when the separation module 21 is put in place, the fibers 14 are arranged in the housing 22 so as to form substantially circular loops whose diameter is greater than that of the zone 26. This diameter initial is defined, taking into account the dimensions of the cavity 223 of the box 22 so that all the optical fibers constituting the cable in question can be housed inside the cavity of the box 22.
    It is also defined, taking into account the coefficient of expansion of the material of the protective sheaths 15, such that:if due to the elongation of its protective sheath 15, a fiber 14 is pulled outside the housing 22, this traction can result, without damage to the fiber, by a sliding of the latter inside of the case, this sliding possibly causing a reduction in the diameter of the loop formed by this fiber.if, conversely, due to the shortening of its protective sheath 15, an optical fiber 14 is partially pushed back towards the inside of the housing 22, it can continue to be housed without damage inside the latter, the loop formed by the fiber 14 then enlarging to take the elliptical shape, as illustrated by the dotted curve 14a of FIG. 3, the dimensions of which do not cause any harmful twist to the optical fiber such as to affect its integrity in such a way permed.
    According to the invention, the structure delimiting the central zone 26 can take different forms such as, for example, that of a simple cylindrical wall of small thickness. However, alternatively, the structure delimiting the central zone 26 can be made up of studs 27 arranged, in a distributed manner, along the perimeter of the circle 261 limiting this zone.
    In the embodiment of Figure 3, the structure delimiting the central zone 26 is formed by four studs 27, preferably cylindrical in shape, as illustrated by the schematic side view 3a, facing two in pairs, and preferably arranged so as to materialize two perpendicular axes, oriented, for example, in directions respectively parallel and perpendicular to the longitudinal axis of the housing 22, as illustrated in FIG. 3.
    According to the invention, the retaining element 23 has the function of ensuring that the optical fibers 14 are held in place after their installation in the housing 22. More specifically, the retaining element ensures in particular the maintenance in place the fibers 14 at the level of the zone 41 of the space of the cavity 223 inside which they are capable of deploying in loops, zone materialized by the ellipse 411 in FIG. 4.
    To this end, as illustrated in Figure 4, it is presented as an element which covers the area 41 by covering it at least partially so that the optical fibers 14 placed in the housing 22 are located maintained in the space limited by the bottom 224 of the cavity 223 and the wall of the retaining element 23 facing the bottom 224.
    According to the invention the retaining element 23 can take different possible forms corresponding to the aforementioned morphological and functional characteristics.
    It can thus take, for example, the form of a flat element in the shape of an ellipse, the major axis of which, oriented along the longitudinal axis of the housing, has a length greater than the length of the ellipse 441, and the edge of which comes into substantially contact with the side walls of the cavity 223.
    Alternatively, it can also take the form of a rectangle, or of a rectangle with rounded angles, the length of which is greater than the length of the ellipse 441, and the edge of which comes into substantially contact with the side walls of the cavity 223.
    Alternatively still it can also, according to a preferred embodiment illustrated in Figure 4, take a cross shape comprising a central element 233 with a longitudinal extension 231 whose length is greater than the length of the major axis of the ellipse 441 and a transverse extension 232, the length of which is defined so that its end edges come into contact substantially with the side walls of the cavity 223.
    According to the invention, the positioning of the element 23 for holding the optical fibers 14 in place in the cavity 223 and its holding in place inside this cavity can be achieved by various known means.
    Thus, in the embodiment of the invention taken here as an example and illustrated by Figures 3 and 4, the positioning can in particular be achieved by means of through holes 234 formed in the wall of the element of maintenance and whose diameter and position are determined in such a way that the installation of the element in the case consists in placing the through holes facing the studs 27 forming the structure which delimits the central zone 26 and in inserting the holding element on the studs.
    The diameter of the through holes is here defined such that the retaining element 23 can slide without getting stuck along the pads 27. The pads 27 thus ensure the correct orientation in the plane of the retaining element 23 .
    Figure 5 shows the conformation obtained after placing the retaining element 23 in the cavity 223 of the housing 22. In this figure there is shown a fiber 14 in the initial configuration as it is put in place. when mounting the separation module 21 on the optical cable 13 and in extended configuration (following a maximum shortening of the associated protective sheath 15), shown by the dotted curve 14a. This representation makes it possible to demonstrate the fact that with such an arrangement according to the invention, each of the optical fibers 14 deployed in the cavity 223 of the box 22 is held in place between the bottom 224 of the cavity and the element of maintenance 23 and this, regardless of the dimensions that the loop made by the fiber in question may take.
    As has been said previously, the separation module 21 according to the invention also comprises a cover 24 whose function is to close the open face of the cavity 223 of the housing 22. According to the morphological characteristics of the housing 22, and in particular of the cavity 223, the cover 24 can obviously take various appropriate shapes. Likewise, the means for fixing the cover 24 on the housing 22 can take various known appropriate forms.
    Thus, in the case of the exemplary embodiment presented here, the cover 24 is presented as a planar element having two faces 241 and 242 of generally rectangular shape. The cover 24 has on its internal face 241, intended to come into contact with the housing 22, a peripheral cutout, defining a projecting internal zone 243 limited by a peripheral wall 244.
    The inner zone 243 is here dimensioned in size and thickness so that, when it is put in place, the cover 24 comes to bear on the outer wall of the housing 22 by its periphery and that the inner zone 243 comes to rest fit into the cavity 223 of the housing 22, such that the cover 24 is blocked in its lateral, transverse and longitudinal movements, by the contact of the wall 244 against the wall of the cavity 223
    In the exemplary embodiment considered here, the fixing of the cover 24 on the housing 22 is carried out by means of a screw.
    For this purpose in particular, the cavity 223 comprises at its center, as shown generally in Figure 3 and more particularly the profile view 3b, a ribbed tubular barrel 28 placed at the center of the bottom of the cavity 223.
    This barrel 28 has a cylindrical central opening and, on its periphery, ribs 281 inclined relative to the longitudinal axis of the barrel, so that the barrel fits into the volume of a truncated cone whose base is located on the bottom of the cavity 223.
    The diameter of the central opening is defined as a function of the diameter of the screw used to secure the cover to the housing.
    The height of the barrel 28 is, for its part, preferably defined such that, when the cover is placed on the housing 22, the end of the barrel substantially comes into contact with the interior zone 243 of the internal face 241 of the cover 24, said cover being for its part pierced with an opening 245, the diameter of which depends on the diameter of the screw used for fixing.
    Furthermore, in this context, the retaining element 23 comprises for its part a circular opening 235 whose diameter allows the passage of the end of the barrel 28 through the retaining element 23.
    This diameter of the circular opening 235 is further defined such that, when the element 23 is placed in the cavity 223 of the housing 22, it slides along the barrel 28 until the edge of the circular opening 235 wedges on the slanted edges of the ribs 281 of the barrel 28 and is thus held in place axially. In this way, the retaining element is held in place at a certain distance from the bottom of the cavity.
    According to a preferred embodiment of the invention, it is provided in order to ensure the maintenance in place of its various protective sheaths 15 that the latter are fixed inside the outlet ducts 222 of the housing. 22 at the time of their insertion into these conduits. This fixing can be achieved by any known means, by gluing for example.
    On the other hand with regard to the optical cable 13, it is expected that the latter is only inserted into the inlet duct 221, the cable being held in place, as illustrated in FIG. 7, by means additional removable, by means of a retractable sleeve 71, for example, simultaneously trapping the projecting end of the inlet duct and the cable 13 at the outlet of the duct. In this way, the cable 13 can be separated from the separation module 21, for example to be replaced, without it being necessary to destroy the latter.
    The illustration of Figure 8 shows, in the case of the embodiment taken as an example, the device according to the invention completely assembled, the housing 22 and the optical fibers 14 held by the retaining element 23, being seen in transparency through the cover 24, the latter being fixed to the housing by the screw 81.
    From the point of view of implementation, the various elements 22, 23 and 24 constituting the device according to the invention can be produced according to the application considered and in particular the mechanical strength required and the climatic and / or weather conditions. temperature to which the device may be subjected, in any suitable material. Moreover, for these same reasons, they can be made from the same material or from different materials. Likewise, the device according to the invention can be produced by any appropriate known process, depending in particular on the material or materials constituting its various elements.
    The device according to the invention can thus, for example, be made of a plastic material such as ABS by injection or molding. Advantageously, the use of injected plastic material makes it possible in particular to produce the housing of the separation module according to the invention in a single piece produced economically.
    The separation module according to the invention 21 as described in the preceding paragraphs advantageously makes it possible to facilitate the operation of separating an optical cable into a plurality of optical fibers. Also advantageously it makes it possible, compared to a conventional separation module, known from the prior art, to ensure that the variations in length of the protective sheaths intended to coat the optical fibers on their exit from the module and up to at their point of connection to an item of equipment are not liable to generate mechanical tensile or torsional stresses at the level of these fibers such as to alter the structure and operation of these fibers.
    Compared to a conventional separation module, the module according to the invention advantageously does not cause installation difficulty. In fact, the installation of the separation module according to the invention can be described by the following steps:a first step during which the end of the cable 13 is first inserted into the inlet duct 221 of the box 22 of the module and passes through the duct;a second step during which a protective sheath 15 is inserted into each of the outlet conduits of the box 22 of the module 21, the end of each sheath being fixed in the corresponding conduit, by means of glue for example. Each of the sheaths 15 is thus made integral with the housing 22;a third step during which the cable 13 is stripped over a given length so as to reveal the different optical fibers 14 and separate them from one another.a fourth step during which the end of each of the fibers 14 is inserted into the corresponding outlet duct 222, each fiber being placed in the cavity of the housing of the module so that it makes a loop of given diameter around the structure delimiting the exclusion zone 26 of the cavity 223 before leaving the cavity through the corresponding outlet duct;a fifth step during which the retaining element 23 is placed inside the cavity so as to keep each of the optical fibers 14 in place between the bottom 224 of the cavity 223 of the housing 22 and the retaining element 23;a sixth step during which the case 22 is closed using the cover 24.
    According to the invention the first and the second step can of course be implemented in this order or in the reverse order.
    权利要求:
    Claims (12)
    [1]
    1. Module (21) for separating an optical cable (13) containing at least one optical fiber (14), characterized in that it comprises a housing (22) in which the optical cable (13) enters through a conduit input (221) and from which said at least one optical fiber (14) exits through an output duct (222), said at least one optical fiber (14) being separated from the cable (13) inside the box ( 22); said module also comprising guide means configured and arranged inside the box (22) such that said at least one optical fiber (14), separated from the optical cable (13), is arranged inside the box (22) around the guide means, to form, between its entry into the box and the outlet of the box, a loop whose length can vary between a minimum value and a maximum value without subjecting the fiber (14) to stresses of curvature which may cause an alteration of its structure and / or its functioning.
    [2]
    2. Module (21) for separating an optical cable (13) according to claim 1, characterized in that the housing (22) comprises an inlet duct (221) and a plurality of outlet ducts (222), said conduits passing through the wall of the housing (22) and opening into an internal cavity (223), with one face forming a bottom (224) limited by a side wall (225) and an open opposite face, the guide means comprising a structure placed in the internal cavity (223) delimiting a circular central exclusion zone (26) and an external zone extending between the central exclusion zone (26) and the wall (225) of the cavity (223) so that a plurality of optical fibers (14) belonging to said cable and separated in the module into a plurality of individualized optical fibers can be deployed in the outer zone so as to form loops around the central exclusion zone (26).
    [3]
    3. Module (21) for separating an optical cable (13) according to claim 2, characterized in that it further comprises a holding element (23) flat, limited by an outer edge, configured so as to be able to be inserted into the cavity (223) through the open face of the latter and to be attached, in a removable manner, to said structure delimiting said central exclusion zone (26), the retaining element (23) having a shape and dimensions defined so as to tangent laterally, by its outer edge, the side wall of the cavity (223).
    [4]
    4. Separation module (21) according to one of claims 2 or 3, characterized in that it further comprises a cover (24) configured to removably close the internal cavity (223) of the housing (22).
    [5]
    5. Separation module (21) according to claim 4, characterized in that the cover (24) has on its internal face (241) placed opposite the internal cavity (223) a projecting rectangular area (243) configured to come. fit into the internal cavity (223) and rest on the wall (225) of the cavity when the cover is placed on the housing (22).
    [6]
    6. Separation module (21) according to claim 4 or 5, characterized in that the internal cavity (223) comprising a barrel (28) provided with ribs (281), arranged at the center of the internal cavity (223) perpendicularly at the bottom (224) of said cavity, said barrel (28), the retaining element (23) and the cover (24) each have a circular opening (235, 245) arranged such that the cover (24) can be fixed on the housing (22) of the module, by means of a screw (81) which is screwed inside the barrel (28).
    [7]
    7. Separation module according to claim 6, characterized in that the barrel (28) having ribs (281) arranged at an angle, the diameter of the circular opening (235) of the retaining element (23) is defined. such that when the retaining element (23) is placed in the cavity (223), it is held in place by wedging the edge of its circular opening (235) against the ridges of the ribs (281) of the barrel (28).
    [8]
    8. Separation module (21) according to one of claims 2 to 7, characterized in that the structure delimiting the central exclusion zone (26) of the cavity (223) comprises at least four conical studs (27) arranged on the perimeter (261) of the exclusion zone (26), at least two studs being placed on the longitudinal axis of the cavity, facing each other, and two other studs being placed on the transverse axis of the cavity facing each other, and in that the retaining element (23) further comprises circular holes (234) arranged so as to be able to be each inserted simultaneously around a stud (27) when the retaining element (23) is placed on the structure delimiting said exclusion zone, the number of holes (234) formed on the retaining element (23) ) being equal to the number of pads (27) in the cavity.
    [9]
    9. Separation module (21) according to one of the preceding claims, characterized in that the inlet duct (221) is dimensioned so that the optical cable (13) can be inserted therein and that each outlet duct ( 222) is sized so that a protective sheath (15) of the optical cable (13) can be inserted therein.
    [10]
    10. Separation module according to claim 9, characterized in that the inlet duct (221) comprises an extension which extends outside the housing and on which is mounted a sleeve (71) ensuring the maintenance in position. of the optical cable (13) inside the inlet duct (221) during the installation of said cable.
    [11]
    11. Separation module according to one of claims 4 to 10, characterized in that the housing (22), the retaining element (23) and the cover (24) are made of plastic, preferably ABS.
    [12]
    12. Method for carrying out the separation of an optical cable (13) comprising a plurality of optical fibers (14) into as many individual optical fibers by means of the separation module (21) according to one of claims 1 to 11, characterized in. in that it comprises at least the following steps:- a first step during which the end of the cable (13) is inserted into the inlet duct (221) of the housing (22) of the module,- a second step during which a protective sheath (15) is inserted into each of the outlet conduits (222) of the box (22) of the module, the end of each sheath (15) being fixed in the corresponding conduit (222) ;- a third step during which the cable (13) is stripped over a given length so as to insulate the various optical fibers (14) from each other;- a fourth step during which the end of each of the fibers (14) is inserted into the corresponding outlet duct (222), each fiber (14) being placed in the cavity (223) of the housing (22) of the module in such a way that it makes a loop of a given diameter around the exclusion zone (26) of the cavity (223) before leaving the cavity;the first and second stages can be reversed.
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    CH712677B1|2021-04-15|Fiber optic cable separation module.
    FR2607940A1|1988-06-10|FIBER OPTICAL CABLE END
    FR2662270A1|1991-11-22|Device and method for the breaking-out | of optical fibres beyond a jacketed end of a cable
    EP0712018B1|2002-08-14|Cassette for the housing and protection of an optical fibre and installation for the storage of optical fibres
    FR2758017A1|1998-07-03|Especially simple demountable protection for cable splices, particularly for optical fibres in telecommunication circuits
    FR2546308A1|1984-11-23|Sealed penetration | for optical fibres
    EP0855721B1|2002-04-10|Fibre optical cable
    WO2006072751A1|2006-07-13|Device for the leakproof connection of telecommunication cables and production method thereof
    EP0851258A1|1998-07-01|Fiber optical cable, flexible and with improved resistance
    EP1522877A1|2005-04-13|Sturdy container for linear underwater antennae
    FR3041109A1|2017-03-17|DEVICE FOR THE MECHANICAL PROTECTION OF OPTICAL FIBERS IN A CASSETTE OF AN OPTICAL FIBER DISTRIBUTION UNIT
    FR2676287A1|1992-11-13|Device and method for the breaking-out of optical fibres from a jacketed end of a unitube cable
    WO2021123449A1|2021-06-24|Device for connecting a laboratory animal to at least one experimentation system, and method for fastening such a device
    FR2598819A1|1987-11-20|Fibre-optic connector
    FR3075992A1|2019-06-28|OPTICAL CABLE HAVING ELEMENTS
    同族专利:
    公开号 | 公开日
    FR3053802A1|2018-01-12|
    CH712677A2|2018-01-15|
    FR3053802B1|2018-07-27|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE3025700C2|1980-07-07|1983-11-17|Siemens AG, 1000 Berlin und 8000 München|Sleeve for multi-pair fiber optic cables|
    FR2515363B1|1981-10-23|1985-08-16|Souriau & Cie|DEVICE FOR COMPENSATING VARIATIONS IN LENGTH OF AT LEAST ONE SHEATHED OPTICAL FIBER, ARRANGED IN AN ENVELOPE|
    GB8815894D0|1988-07-04|1988-08-10|Bicc Plc|Connecting device|
    US6512870B1|1999-02-09|2003-01-28|3M Innovative Properties Company|Device for removing torsion in optical fiber ribbons|
    US6379166B1|2000-06-26|2002-04-30|Randl Industries, Inc.|Fiber optic cable outlet box|
    US7970249B2|2008-02-15|2011-06-28|Adc Telecommunications, Inc.|Fiber optic splice enclosure|
    FR2930998B1|2008-05-07|2010-08-13|Nexans|OPTICAL FIBER DISTRIBUTION BOX|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    FR1656419A|FR3053802B1|2016-07-05|2016-07-05|FIBER OPTIC CABLE SEPARATION MODULE|
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