Recessed optical connection device and method of mounting such a device in a block recessed in a wall

Abstract

The present invention relates to a recessed optical connection device (1) comprising a plate (5) adapted to be fixed to a recessed block (3) in a wall, a coiling box (7), and an optical feedthrough (9), the plate (5) being adapted to be successively fixed to the recessed block (3) in a first fixing configuration and then in a second fixing configuration in which the plate (5) is reversed relative to the first fixing configuration, the plate (5) having at least one peripheral notch (33) adapted to be traversed by an optical cable (27) in the first fixing configuration, and in the second fixing configuration, the peripheral notch (33) being free of optical cable (27). The invention also relates to a method of mounting such a device (1) on a recessed block (3) in a wall. Figure for the abstract: Fig. 2

Description

Title of the invention: Recessed optical connection device and method for mounting such a device in a block embedded in a wall. FIELD OF THE INVENTION

[0001] The present invention relates to a recessed optical connection device, as well as to a method of mounting such a recessed optical connection device in a block embedded in a wall.

[0002] This invention finds preferential application in the field of telecommunication networks known by the acronym FTTH for Fibre To The Home in English, which can be translated as fibre optic to the subscriber.

[0003] The solution according to the invention finds in particular an application at the level of a PTO, acronym for optical terminal outlet or optical termination point, and relates more particularly to the method of fixing optical cables inside these boxes. STATE OF THE ART

[0004] It is known from recessed optical connection devices. Such devices serve to optically connect an optical cable emerging from a wall in a recessed block to an external optical outlet for the connection of an external optical plug of equipment, such as a modem including an optical / electrical converter, also called ONT, acronym for Optical Network Termination in English, which can be translated as optical network termination.

[0005] However, with current optical connection devices, assembly and mounting are difficult for the user who has to make the optical connection from the optical cable and mount the optical connection device onto the recessed block. For example, when splicing an optical fiber from the optical cable to a fiber from the plug coupled to the external optical outlet, the user must constantly ensure that the bend radius of the optical cable is not too small, which could damage the optical fiber(s) in the optical cable. Furthermore, the workspace for the user is often cramped and uncomfortable, which further increases the difficulty of assembly and mounting.

[0006] Furthermore, once the splicing has been carried out, the user must constantly ensure that the bending radius of the optical cable is not too small also during the coiling step of the optical cable fibers and / or the optical plug fibers.

[0007] Thus, the assembly of such a recessed optical connection device is difficult, and during assembly, the risk of damage to optical fiber, in particular of breakage, either of an optical fiber of the optical cable, or of an optical fiber of the plug of the recessed optical connection device, is too great. Description of the invention

[0008] The present invention aims to overcome all or part of the drawbacks mentioned above.

[0009] In particular, the invention aims to provide a recessed optical connection device whose assembly is optimized while limiting the risk of damage to the optical fibers.

[0010] According to a first aspect, the invention proposes a recessed optical connection device comprising: - a mounting plate designed to be fixed to a block embedded in a wall - a coiling box, the coiling box being fixed to the plate and suitable for receiving at least one coiled optical fiber, and - an optical feedthrough passing through the plate and from which is suitable for extending at least one optical fiber of a connector suitable for being coupled by a splice with an optical fiber of a cable of an optical cable coming from the embedded block and for being coiled in the coiling box, characterized in that: The mounting plate is designed to be successively fixed to the recessed block in a first fixing configuration and then in a second fixing configuration in which the mounting plate is reversed relative to the first fixing configuration, the mounting plate having at least one peripheral notch designed to be traversed by the optical cable, such that: - In the first mounting configuration, the coil box is positioned opposite the recessed block relative to the mounting plate, and a peripheral notch is traversed by the optical cable, and - in the second fixing configuration, the coil box is housed in the recessed block and the peripheral notch is free of optical cable.

[0011] Thus, the mounting of the recessed optical connection device is optimized while limiting the risk of damage to the optical fibers. Indeed, the use of a first mounting configuration for the plate in which the coiling housing is accessible allows for simple and safe assembly steps, such as splicing a cable optical fiber with a connector optical fiber, while also allowing for final mounting of the recessed optical connection device in the second mounting configuration, and this in a particularly simple manner, by simply flipping the plate over. A flipping being a simple move, the risk of mishandling of the plate by a user leading to damage to the optical cable or more generally to an optical fiber is thus particularly limited during the transfer from the first fixing configuration to the second fixing configuration.

[0012] An optical plug from which an optical plug fiber extends is also known by the English term "pigtail".

[0013] The recessed optical connection device is advantageously and optionally supplemented by the following features, taken alone or in any of their technically possible combinations:

[0014] - The coiling box is suitable for receiving one or more optical fibers coiled in her breast.

[0015] - The plate is suitable for being successively fixed directly onto the recessed block in the first fixing configuration and then in the second fixing configuration.

[0016] - The plate is suitable for being successively fixed in the first configuration of fixing, on an intermediate sleeve itself fixed to the recessed block, then in the second fixing configuration, directly onto the recessed block.

[0017] - The coiling box includes a recess suitable for receiving at least one fiber Coiled optical fiber, preferably designed to accommodate a plurality of coiled optical fibers. This facilitates coiling.

[0018] - The optical cable comprises at least one optical cable fiber, preferably at minus two optical cable fibers, more preferably exactly four optical cable fibers.

[0019] - The optical feedthrough comprises at least one optical connection, each connection The optical connection consists, at one end opposite the housing, of an external optical socket for connecting an external optical plug of equipment, and, at the other end on the housing side, of an internal connector coupled to an optical plug from which a fiber optic cable extends. This simplifies the assembly of the recessed optical connection device.

[0020] - The recessed optical connection device includes a lashing system, the The lashing system includes a clamping device, the clamping device being suitable for securing the optical cable to the coiling housing in both the first and second fixing configurations. Thus, in the first fixing configuration, the lashing system is configured to orient the end of the optical cable protruding from a peripheral notch towards the coiling housing, such that the portion of the optical cable protruding from the peripheral notch has a radius of curvature greater than a predetermined threshold, up to the clamping device.

[0021] - The lashing system is formed by a support surface of the lashing housing and the The clamping device is designed to hold the optical cable against the support surface in both the first and second fixing configurations. In the first fixing configuration, the lashing system is configured to orient the end of the optical cable protruding from a peripheral notch towards the coiling housing, such that the portion of the optical cable protruding from the peripheral notch has a bend radius greater than a predetermined threshold, all the way to the clamping device.

[0022] - The bearing surface is a surface of a lug of the coiling housing, preferably The lug is formed by the extension of a peripheral wall that defines the recess in the cable housing. This creates a simple bearing surface, while also facilitating the user's installation and securing of the optical cable to the housing using the clamping device.

[0023] - The support surface is flat. Thus, it is geometrically guaranteed that the cable optics is not bent too much, especially below its minimum permissible radius of curvature.

[0024] - The lashing system is located at a minimum distance from the plate predetermined. This ensures that the optical cable cannot be bent excessively.

[0025] - The plate has fixing holes suitable for fixing the plate to the a block recessed by means of fixing screws, each fixing hole comprising: - a portion of passage suitable for the passage of the head of a fixing screw through the portion of passage, and - a portion of the fixing specific to the fixing of the plate by tightening between the fixing screw and the recessed block. Thus, switching from a fastener in the first mounting configuration to one in the second mounting configuration is particularly simple and efficient. Specifically, it is not necessary to completely unscrew the mounting screws. In fact, it is sufficient to simply loosen the mounting screws slightly, rotate the plate slightly so that the mounting screws are aligned with the openings, disengage the plate by passing the mounting screws through the openings, turn the plate over, reinsert the mounting screws through the openings, rotate the plate slightly so that the mounting screws are aligned with the openings, and then tighten the mounting screws.

[0026] - The recessed optical connection device includes a retaining device suitable for attaching at least one reinforcing strand of the optical cable to the housing of coiling. Thus, assembly safety is further improved, as any forces applied to the optical cable are transmitted to the coiling box via at least one reinforcing strand, which is specifically designed to withstand the forces.

[0027] - The coiling housing includes at least one fork suitable for receiving at least a splice. Thus, assembly safety is further improved by protecting the result of the splicing step performed by the user, namely at least one splice.

[0028] - The coiling box includes at least one housing suitable for receiving at least a splice. Thus, assembly safety is improved by protecting the result of the splicing step performed by the user, namely at least one splice.

[0029] - The splice or splices are housed in a slot. Thus, each splice is protected against damage that may occur during the coiling of optical fibers.

[0030] - The housing or each housing is formed between two parallel walls of the housing. Thus, each dwelling is constructed in a simple manner.

[0031] - The housing unit or units are formed by at least one fork suitable for receiving the less one splice. Thus, each housing is made in a particularly simple way, and assembly safety is further improved by protecting the result of the splicing step carried out by the user, namely at least one splice.

[0032] - The housing unit or units are formed by two forks delimiting between them a The passage is configured to allow the extraction of at least one splice by a tool. This facilitates maintenance by a user, who can easily extract a splice with a tool.

[0033] - The coiling housing comprises a plurality of forks, preferably exactly two forks.

[0034] - Each fork is designed to receive a plurality of splices. Thus, the number of forks while ensuring the integrity of each splice.

[0035] - The predetermined minimum distance is greater than the minimum radius of curvature permissible distance of the optical cable. Thus, such a predetermined minimum distance is optimal in that it prevents damage to the optical cable during assembly.

[0036] - The predetermined minimum distance is between 15 millimeters and 30 millimeters, preferably equal to 19 millimeters. Thus, such a predetermined minimum distance is optimal in that it prevents damage to the optical cable during assembly while allowing the flush-mounted optical connection device to be fixed to a standard flush-mounted block.

[0037] - The bearing surface is located radially from a central axis of the plate a predetermined minimum. This ensures that the optical cable and each optical fiber within the cable cannot be damaged during assembly.

[0038] - The predetermined minimum radial distance is greater than the radius of curvature minimum permissible thickness of the optical cable. This ensures that the optical cable cannot be damaged during assembly.

[0039] - The predetermined minimum radial distance is between 15 millimeters and 35 millimeters, preferably between 20 and 30 millimeters, and more preferably 24 millimeters. This predetermined minimum radial distance is optimal because it prevents damage to the optical cable during assembly while allowing the flush-mounted optical connection device to be fixed to a standard flush-mounted block.

[0040] - The coiling housing is snapped onto the plate. Thus, the assembly of the device The installation of a built-in optical connection is simplified.

[0041] - The coiling housing is monolithic. Thus, the assembly of the recessed device Optical connection is simplified.

[0042] - The plate has an opening through which the optical passage extends. Thus, the manufacturing of the plate is simplified while allowing the optical passage to be easily maintained in relation to the plate.

[0043] - The plate, the coiling housing and the optical passage are fixed relative to each other to others.

[0044] - In the second fastening configuration, each peripheral notch is free of optical cable.

[0045] - In the first fixing configuration, the coiling housing protrudes out of the recessed block.

[0046] - The turntable is a support plate.

[0047] - The wall is a solid masonry structure or a partition. Thus, by "wall", one must including a solid wall through which passes a conduit containing the optical cable, or a wall partition through which the optical cable passes, preferably surrounded by a conduit.

[0048] - The optical cable emerges into the recessed unit from a sheath located in the wall.

[0049] - The recessed block includes a passage hole through which the cable extends optical. Thus, the passage of the optical cable through the recessed block is facilitated.

[0050] - Each optical fiber is glass-based.

[0051] - Each plug optical fiber is connected to a cable optical fiber by a splice, the splice being either mechanical or fusion welded.

[0052] - The optical feedthrough comprises at least two optical connections, preferably exactly four optical connections.

[0053] - The plate has a plurality of regularly spaced peripheral notches on the periphery of the plate, preferably exactly four peripheral notches distributed every 90 degrees around the central axis of the plate. Thus, assembly is facilitated, since the passage of the optical cable in the first fixing configuration takes place through one of the peripheral notches, which can for example be chosen according to the distance of the optical cable from the peripheral notch, and / or according to the minimum deformation of the optical cable passing through the selected peripheral notch.

[0054] - The clamping device is a hose clamp. Thus, the clamping device is done in a simple and inexpensive way.

[0055] - The plate is metallic. Thus, the plate can be of limited thickness while exhibiting significant resistance to damage. Furthermore, the manufacturing of the plate is simplified while limiting its cost. Alternatively, the plate is made of plastic material, preferably plastic. Thus, the manufacturing of the plate is simplified while limiting its cost.

[0056] - The coiling case is made of plastic material. Thus, the manufacture of the case The swaddling process is simplified while limiting its cost.

[0057] - Each fixing hole is an oblong hole, one end of which forms the portion of passage presents a larger passage diameter than that of the other end included in the fixing portion.

[0058] - Each fixing hole extends around the central axis of the plate.

[0059] - The fixing holes are regularly distributed around the central axis of the The mounting plate is preferably spaced every 90 degrees around its central axis. This makes fixing it simple.

[0060] - The plate has exactly four fixing holes spaced every 90 degrees around the central axis of the plate. Thus, the fixing is carried out in a particularly simple way.

[0061] - The retaining device is a retaining screw. Thus, the retaining device is done in a simple way.

[0062] - The retaining screw is screwed into a hole in the housing. Thus, the retention of the Reinforcing wick is simple for a user to make.

[0063] - The reinforcing strand or strands are based on poly(p-phenylene terephthalamide), also known as PPD-T or Kevlar (registered trademark). This provides a strong and inexpensive reinforcing strand.

[0064] - The recessed optical connection device includes a device of embellishment. Thus, the external appearance of the recessed optical connection device in the final mounting state, i.e. in the second mounting configuration of the plate, is improved.

[0065] - The embellishment device is formed by a embellishment frame and a plate The embellishment includes an opening through which the optical passage extends. Thus, the exterior appearance is further improved.

[0066] - The trim plate is fixed to the plate, preferably by a fixing screw engaged in the mounting plate through a hole in the trim plate. Thus, the trim plate is fixed in a simple manner.

[0067] - The trim frame is designed to be held in place by clamping between the plate embellishment and the wall. Thus, the exterior appearance is further improved.

[0068] - The plate has exactly one peripheral notch. Thus, the manufacture of The turntable is simplified.

[0069] - The bearing surface is oriented towards a peripheral notch.

[0070] According to a second aspect, the invention also proposes a method for mounting a recessed optical connection device as previously described in a block embedded in a wall, comprising the following steps: - Position the mounting plate so that the coiling box is opposite the recessed block and place the optical cable in a peripheral notch, - fix the mounting plate in the first fixing configuration, either directly onto the recessed block or onto an intermediate sleeve itself fixed to the recessed block. - Splice each optical fiber from the plug with an optical fiber from the cable to form a splice, - house each splice in the coiling box, - coil each optical fiber plug and each optical fiber cable into the coiling box, - disassemble the plate from the first fixing configuration, remove the optical cable from the peripheral notch, turn the plate over, coil the optical cable in the recessed block, and fix the plate onto the recessed block in the second fixing configuration.

[0071] Thus, we have a method for mounting a recessed optical connection device whose assembly is simplified while avoiding damage to the optical cable, optical fibers and splices.

[0072] The assembly method according to the invention is advantageously and optionally supplemented by the following features, taken alone or in any of their technically possible combinations:

[0073] - The assembly method further comprises at least one of the following steps: - After the mounting plate has been installed, secure at least one reinforcing strand of the optical cable with the retaining device. - after the step of placing the plate, secure the optical cable to the coiling box by the lashing system. DESCRIPTION OF THE FIGURES

[0074] Other features, objectives and advantages of the invention will become apparent from the detailed description below, which is purely illustrative and not limiting, and which should be read in conjunction with the accompanying drawings, given by way of non-limiting examples and on which:

[0075] - [Fig. 1] is a schematic perspective view of a built-in device optical connection according to a first embodiment, in an initial state of assembly and mounting, in other words before fixing in a first fixing configuration;

[0076] - [Fig.2] is a schematic perspective view of the embedded device optical connection according to the first embodiment, in a first fixing configuration;

[0077] - [Fig. 3] is a schematic perspective view of a built-in device optical connection according to the first embodiment, in an intermediate mounting state between the first fixing configuration and a second fixing configuration;

[0078] - [Fig. 4] is a schematic front view of the recessed connection device optics according to the first embodiment, in the second fixing configuration;

[0079] - [Fig. 5] is a schematic front view of the recessed connection device optics according to the first embodiment, in the second fixing configuration and in a final assembled state;

[0080] - [Fig. 6] is a schematic perspective view of the embedded device of optical connection according to the first embodiment, in a variant of the first fixing configuration;

[0081] - [Fig. 7] is a schematic perspective view of a built-in device optical connection according to a second embodiment;

[0082] - Figure 8 schematically represents the steps of an assembly process for a recessed optical connection device conforming to an embodiment.

[0083] Throughout the figures, similar elements are designated by identical reference numerals. DETAILED DESCRIPTION OF THE INVENTION

[0084] Fig. 1 schematically represents a first embodiment of a recessed optical connection device.

[0085] Such a recessed optical connection device 1 is suitable for mounting in a recessed block 3. Advantageously, the recessed block 3 is suitable for being recessed in a wall or is embedded in a wall. Preferably, the wall is solid masonry or a partition.

[0086] Advantageously, the embedded block 3 has a depth of between 30 millimeters and 60 millimeters, preferably equal to 40 millimeters.

[0087] The recessed optical connection device 1 comprises a plate 5, a coiling box 7 and an optical feedthrough 9.

[0088] Advantageously, the coiling housing 7 is fixed to the plate 5. The coiling housing 7 is suitable for receiving at least one coiled optical fiber. Thus, the coiling housing 7 is suitable for receiving one or more optical fibers coiled within it. The coiling within the coiling housing 7 is conventionally achieved by means of guide walls, retaining tabs, and retaining pins, which are formed within the coiling housing 7.

[0089] Advantageously, the coiling box 7 includes a recess 8 suitable for receiving at least one coiled optical fiber, preferably suitable for receiving a plurality of coiled optical fibers.

[0090] Preferably, the plate 5, the coiling box 7 and the optical passage 9 are fixed relative to each other.

[0091] Advantageously, the plate 5 is metallic, preferably made of steel. Alternatively, the plate 5 is made of plastic material, preferably composed of a plastic material.

[0092] The mounting plate 5 is clean and is to be fixed to the recessed block 3 in the wall, as shown for example in [Fig.2]. Preferably, the mounting plate 5 is a support plate.

[0093] Advantageously, the plate 5 has fixing holes 11 suitable for fixing the plate 5 onto the recessed block 3 by means of fixing screws 13.

[0094] Preferably, each fixing hole 11 comprises: - a portion of passage 15 suitable for the passage of the head of a fixing screw 13 through the portion of passage 15, and - a fixing portion 17 specific to fixing the plate 5 by tightening between the fixing screw 13 and the recessed block 3.

[0095] Thus, the fixing screws 13 are screwed into the recessed block 3 and hold the plate 5 by tightening onto the recessed block 3.

[0096] Advantageously, each fixing hole 11 is an oblong hole of which one end forming the passage portion 15 has a larger passage diameter than that of the other end included in the fixing portion 17.

[0097] Preferably, each fixing hole 11 extends around a central axis P of the plate 5, more preferably at the same radial distance from the central axis P of the plate 5.

[0098] Advantageously, the fixing holes 11 are regularly distributed around the central axis P of the plate 5, preferably every 90 degrees around the central axis P of the plate 5.

[0099] Preferably, the plate 5 has exactly four fixing holes 11 distributed every 90 degrees around the central axis P of the plate 5.

[0100] Advantageously, as can be seen for example in [Fig.3], the optical passage 9 passes through the plate 5.

[0101] Preferably, the plate 5 has an opening 19 through which the optical passage 9 extends.

[0102] Advantageously, at least one optical fiber of connector 21 extends from the optical feedthrough 9. As shown in particular in [Fig.3], at least one optical fiber of connector 21 extends from the optical feedthrough 9.

[0103] Advantageously, the optical feedthrough 9 comprises at least one optical connection. Preferably, the optical feedthrough comprises at least two optical connections, preferably exactly four optical connections.

[0104] Preferably, each optical connection is formed, at a first end opposite the coiling box 7, by an external optical socket 23 for the connection of an external optical plug of a piece of equipment, and, at a second end on the side of the coiling box 7, by an internal connector coupled to an optical plug 25 from which extends an optical fiber of plug 21.

[0105] Advantageously, each optical fiber of plug 21 passes through a separating wall 26 of the coiling box 7. Thus, the connection of the internal fitting to the optical plug 25 is separated from the recess 8, which is thus dedicated to the coiling.

[0106] Advantageously, an optical cable 27 emerges into the recessed block 3 from the wall, preferably from a conduit located in the wall.

[0107] Preferably, the recessed block 3 includes a through hole 29 through which the optical cable 27 extends. Thus, the optical cable 27 comes out of the recessed block 3.

[0108] Advantageously, the recessed block 3 has several access holes 29, preferably exactly two diametrically opposed access holes 29. Thus, for example, a conduit containing the optical cable 27 can reach the recessed block 3 from several different angles while allowing the optical cable 27 exiting the conduit to enter the recessed block 3.

[0109] Advantageously, the optical cable 27 comprises at least one optical fiber of cable 31, preferably at least two optical fibers of cable 31, more preferably exactly four optical fibers of cable 31.

[0110] Preferably, the optical cable 27 includes at least one reinforcing strand 32.

[0111] Advantageously, the reinforcing strand 32 or each reinforcing strand 32 is based on poly(p-phenyleneterephthalamide), also known as PPD-T or Kevlar (registered trademark).

[0112] Advantageously, the plate 5 has at least one peripheral notch 33 suitable for the optical cable 27 to pass through.

[0113] Preferably, the plate 5 has a plurality of peripheral notches 33.

[0114] Advantageously, each peripheral notch 33 extends around the central axis P of the plate 5, more preferably at the same radial distance from the central axis P of the plate 5.

[0115] Advantageously, the plate 5 has exactly four peripheral notches 33.

[0116] Advantageously, the peripheral notches 33 are regularly distributed around the central axis P of the plate 5, preferably every 90 degrees around the central axis P of the plate 5.

[0117] Preferably, the plate 5 has exactly four peripheral notches 33 distributed every 90 degrees around the central axis P of the plate 5.

[0118] Advantageously, the dimensions of the plate 5 are such that the plate is inscribed in a square with a side between 60 millimeters and 80 millimeters, preferably equal to 70 millimeters.

[0119] Preferably, the peripheral notch or notches 33 have a width between their edges greater than or equal to 4 millimeters, preferably between 4 millimeters and 6 millimeters, more preferably equal to 4 millimeters. Such a width allows an optical cable 27 with a diameter less than or equal to 3 millimeters to easily pass through the peripheral notch 33.

[0120] Advantageously, the depth of the peripheral notch or notches 33 is such that in the first fixing configuration, the optical cable 27 is free to pass through the peripheral notch 33. In other words, in the first fixing configuration, when the plate 5 is fixed to the recessed block 3, the optical cable 27 is not compressed in the peripheral notch 33 between the plate 5 and the recessed block 3. Thus, damage to the optical cable 27 is avoided.

[0121] Preferably, the depth of the peripheral notch or notches 33 is such that in the first fixing configuration, the passage provided in the peripheral notch between the recessed block 3 and the plate 5 is of a dimension at least equal to the width of the peripheral notch 33.

[0122] Advantageously, at least one or each of the connector optical fibers 25 is suitable for being coupled by a splice 35 with a cable optical fiber 31 of the optical cable 27 from the embedded block 3 and for being coiled in the coiling box 7. Thus, as shown in [Fig. 3], each connector optical fiber 25 is coupled by a splice 35 with an optical fiber from cable 31 of optical cable 27 coming from the embedded block 3 and is coiled in the coiling box 7.

[0123] Preferably, each optical fiber of plug 25 is connected with an optical fiber of cable 31 by a splice 35. Advantageously, the splice 35 is mechanical or fusion welded.

[0124] Advantageously, each 25-pin optical fiber is glass-based.

[0125] Advantageously, each optical fiber of cable 31 is glass-based.

[0126] In a first fixing configuration, the plate 5 is suitable for being fixed on the recessed block 3. Thus, [Fig. 2] represents the mounting plate 5 fixed directly onto the recessed block 3, the mounting plate 5 being fixed to the recessed block 3 by means of the fixing screws 13.

[0127] Advantageously, in the first fixing configuration, the housing 7 is opposed to the recessed block 3 with respect to the plate 5, and a peripheral notch 33 is traversed by the optical cable T1. In other words, only one peripheral notch 33 is traversed by the optical cable 27. In the case where the plate 5 has several peripheral notches 33, apart from this single peripheral notch 33 traversed by the optical cable 27, the remaining peripheral notches 33 are not traversed by the optical cable 27.

[0128] Preferably, in the first fixing configuration, the coil box 7 protrudes out of the recessed block 3. In other words, in the first fixing configuration, the coil box 7 is arranged outside the recessed block 3.

[0129] In a second fixing configuration, the plate 5 is also suitable for fixing onto the recessed block 3. Thus, [Fig.4] represents the plate 5 fixed directly onto the recessed block 3, the plate 5 being fixed to the recessed block 3 by means of the fixing screws 13. In the second fixing configuration, the plate 5 is reversed relative to the first fixing configuration.

[0130] Advantageously, in the second mounting configuration, the cable housing 7 is housed in the recessed block 3 and the peripheral notch 33 is free of optical cable. If the plate 5 has several peripheral notches 33, each peripheral notch 33 is free of optical cable 27. In other words, the peripheral notch(s) 33 are not traversed by the optical cable 27.

[0131] Preferably, in the second mounting configuration, the peripheral notch or notches 33 are free and are thus not traversed by any other part. In other words, in the second mounting configuration, the peripheral notch or notches 33 are free of optical cable 27.

[0132] The plate 5 is suitable for being successively fixed on the embedded block 3 in the first fixing configuration and then in the second fixing configuration in which the plate 5 is reversed with respect to the first fixing configuration.

[0133] Advantageously, the plate 5 is suitable for being successively fixed on the embedded block 3 in a first fixing configuration and then in a second fixing configuration in which the plate 5 is reversed with respect to the first fixing configuration.

[0134] Preferably, the plate 5 is suitable for being successively fixed directly onto the recessed block 3 in the first fixing configuration, as shown in [Fig.2], and then in the second fixing configuration, as shown in [Fig.4].

[0135] Advantageously, the coiling housing 7 is snapped onto the plate 5. Preferably, as shown in [Fig.3], the coiling housing 7 comprises tabs 37 snapped into corresponding holes 39 provided in the plate 5.

[0136] Preferably, the lovage housing 7 is monolithic.

[0137] Advantageously, the lovage housing 7 is based on plastic material, preferably made of a plastic material.

[0138] Preferably, the coiling box 7 has a depth along the central axis P of the plate 5 less than or equal to the depth of the embedded block 3.

[0139] Preferably, the coiling housing 7 has a depth along the central axis P of the plate 5 of between 30 millimeters and 60 millimeters, preferably equal to 35 millimeters.

[0140] Advantageously, the recessed optical connection device 1 includes a retaining device 41 suitable for fixing at least one reinforcing strand 32 of the optical cable 27 to the coiling box 7.

[0141] Preferably, the retaining device 41 is a retaining screw 41.

[0142] Advantageously, the retaining screw 41 is screwed into a hole 42 in the swage housing 7.

[0143] Advantageously, the coiling box 7 has at least one housing 43 suitable for receiving at least one splice 35, as shown in [Fig.2].

[0144] Preferably, the housing 43 or each housing 43 is formed between two parallel walls P1-P2 of the housing 7.

[0145] Advantageously, each splice 35 is housed in a housing 43.

[0146] Preferably, the housing 43 or each housing 43 is formed by at least one fork 45 suitable for receiving at least one splice 35. Thus, the coiling box 7 has at least one fork 45 receiving at least one splice 35.

[0147] Advantageously, the coiling case 7 comprises a plurality of forks 45, preferably exactly two forks 45.

[0148] Preferably, the or each fork 45 is suitable for receiving a plurality of splices 35. As shown in [Fig.2], each fork 45 receives a plurality of splices 35, only one of which is visible in [Fig.2].

[0149] Advantageously, the or each housing 43 is formed by two forks 45 delimiting between them a passage configured to allow the extraction of at least one splice 35 by a tool.

[0150] Preferably, the forks 45 are located on the side of the coiling housing 7 furthest from the plate 5.

[0151] Advantageously, the recessed optical connection device 1 includes a lashing system 46. The lashing system 46 includes a clamping device 47. The clamping device 47 is suitable for retaining the optical cable 27 on the coiling housing 7 in both the first and second fixing configurations. In other words, the optical cable 27 remains held by the clamping device 47 in the first fixing configuration, then between the first and second fixing configurations, and then in the second fixing configuration.

[0152] Preferably, the clamping device 47 is suitable for locally holding the optical cable 27 on the coiling housing 7 such that the optical cable 27 is inclined relative to the central axis P of the plate 5 with an angle between 15 degrees and 75 degrees, preferably between 30 degrees and 60 degrees.

[0153] Preferably, the lashing system 46 is formed by a support surface S of the coiling housing 7 and the clamping device 47. The clamping device 47 is thus suitable for holding the optical cable 27 against the support surface S in both the first fixing configuration and the second fixing configuration.

[0154] Advantageously, the bearing surface S is a surface of a lug 49 of the lovage housing 7.

[0155] Preferably, the lug 49 is formed by the extension of a peripheral wall 51 delimiting the recess 8 of the coiling housing 7.

[0156] Advantageously, the lug 49 is formed on a portion of the peripheral wall 51 orthogonal to the plate 5.

[0157] Preferably, the clamping device 47 is a cable tie 47. The cable tie 47 passes around the optical cable 27 and locally retains the optical cable 27 on the support surface S by being wound around the lug 49 through a through hole 53 made on the lug 49. The through hole 53 thus forms a passage for the cable tie 47.

[0158] Advantageously, the hose clamp 47 is made of plastic material.

[0159] Advantageously, the bearing surface S is flat. Preferably, the bearing surface S is oriented towards at least one peripheral notch 33. In other words, a plane passing through the bearing surface S intersects at least one peripheral notch 33.

[0160] Advantageously, the lashing system 46 is separated from the plate 5 by a predetermined minimum distance D.

[0161] Preferably, the through hole is located from the plate 5 by the minimum predetermined distance D.

[0162] Advantageously, the bearing surface S is distant from the plate 5 by the predetermined minimum distance D.

[0163] Preferably, the predetermined minimum distance D is greater than the minimum permissible bending radius of the optical cable 27.

[0164] Advantageously, the predetermined minimum distance D is between 15 millimeters and 30 millimeters, preferably equal to 19 millimeters.

[0165] Advantageously, the bearing surface S is distant from the central axis P of the plate 5 by a predetermined minimum radial distance R.

[0166] Preferably, the predetermined minimum radial distance R is greater than the minimum permissible radius of curvature of the optical cable 27.

[0167] Advantageously, the predetermined minimum radial distance R is between 15 millimeters and 35 millimeters, preferably between 20 millimeters and 30 millimeters, more preferably equal to 24 millimeters.

[0168] Advantageously, as shown in [Fig.5], the recessed optical connection device 1 includes a decorative device 55.

[0169] Preferably, the embellishment device 55 is formed by a embellishment frame 57 and a embellishment plate 59, which has an opening 61 through which the optical passage 9 extends.

[0170] Advantageously, the trim plate 59 is fixed to the plate 5, preferably by a fixing screw 63 engaged in the plate 5 through a hole in the trim plate 59.

[0171] Preferably, the coiling housing 7 includes a protective channel 65 disposed between the fixing screw 63 and the recess 8, in order to protect the optical fibers against damage when screwing the fixing screw 63.

[0172] Preferably, the trim frame 57 is designed to be held by clamping between the trim plate 59 and the wall.

[0173] Thus, the embellishment device 55 is fixed to the plate 5.

[0174] Figure 6 shows a variant mounting of the recessed device 1 optical connection, more specifically according to a variant of the first mounting configuration of plate 5.

[0175] According to this variant, the plate 5 is suitable for being successively fixed in the first fixing configuration, on an intermediate sleeve 67 itself fixed on the recessed block 3, then in the second fixing configuration, directly on the recessed block 3.

[0176] Thus, according to this variant, the fixing screws 13 are screwed into intermediate sleeve 67 and hold the plate 5 by tightening on the intermediate sleeve 67.

[0177] Advantageously, the intermediate sleeve 67 is an articulated arm.

[0178] Preferably, the intermediate sleeve 67 comprises a mounting plate 69 on the recessed block 3, a first bar 71 supported by the mounting plate 69, a second bar 73 supported by the first bar 71, and a mounting block 75 supported by the second bar 73. Like the plate 5, the mounting plate 69 comprises at least one peripheral notch 33', similar to the peripheral notch 33 of the plate 5, thus allowing the passage of the optical cable 27 through the peripheral notch 33' in the first mounting configuration.

[0179] The first bar 71 is mounted on the mounting plate 69 via a first ball joint, the positioning of the first bar 71 on the mounting plate 69 being ensured by friction. Thus, in the absence of a minimum displacement force exerted by the user, the first bar 71 and the mounting plate 69 remain fixed relative to each other.

[0180] The second bar 73 is pivotally mounted on the first bar 71, with positioning also ensured by friction. A clamping handle 77 allows adjustment of the clamping force ensuring the relative positioning of the second bar 73 and the first bar 71.

[0181] The fixing block 75 is mounted on the second bar 73 via a second ball joint, the fixing block 75 being held in position on the second bar 73 by friction. Thus, in the absence of a minimum displacement force exerted by the user, the fixing block 75 and the second bar 73 remain fixed relative to each other.

[0182] Since the intermediate sleeve 67 is not used in the second fixing configuration, it is reusable and allows the subsequent mounting of other 1 recessed optical connection devices.

[0183] Fig. 7 represents a recessed optical connection device 1 according to a second embodiment.

[0184] The recessed optical connection device 1 according to this second embodiment differs from the recessed optical connection device 1 according to the first embodiment mainly in that the plate 5 has exactly a peripheral notch 33.

[0185] Advantageously, in this second embodiment, the bearing surface S is oriented towards the single peripheral notch 33.

[0186] Preferably, a plane comprising the bearing surface S is secant with the single peripheral notch 33. In other words, the bearing surface S extends in the direction of the peripheral notch 33.

[0187] In this second embodiment, the coiling box 7 is without a protective channel.

[0188] Furthermore, the forks 45 are located on the side of the coiling housing 7 closest to the plate 5.

[0189] Fig. 8 represents the main steps of a method for mounting a recessed optical connection device 1 as previously defined in a block embedded in a wall.

[0190] Such an assembly method comprises the following steps: - P10 place the plate 5 so that the coiling box 7 is opposite the recessed block 3 and place the optical cable 27 in a peripheral notch 33, for example as shown in [Fig.1], - P40 fix the plate in the first fixing configuration, directly onto the flush-mounted block or onto an intermediate sleeve itself fixed to the flush-mounted block, - P50 splice each optical fiber of plug 21 with an optical fiber of cable 31 to form a splice 35, - P60 house each splice 35 in the coil box 7, - P70 coil each optical fiber of plug 21 and each optical fiber of cable 31 in the coiling box 7, for example as shown in [Fig.2], - P80 disassemble the plate 5 from the first fixing configuration, remove the optical cable 27 from the peripheral notch 33, turn the plate 5 over for example as shown in [Fig.3], coil the optical cable 27 in the recessed block 3, and fix the plate 5 on the recessed block 3 in the second fixing configuration, for example as shown for example in [Fig.4].

[0191] Advantageously, the assembly method further comprises at least one of the following steps: - after step P10 of placing the plate 5, P20 retain at least one reinforcing strand 32 of the optical cable 27 with the retaining device 41, - after step P10 of placing the plate 5, P30 maintain the optical cable 27 on the coil box 7 by the lashing system 46.

[0192] Preferably, the assembly process further comprises the following step: - after step P80 of fixing the plate 5 onto the recessed block 3 in the second fixing configuration, P90 fix the embellishment device 55 onto the plate 5, as shown for example in [Fig.5].

[0193] The invention is not limited to the embodiments and variants shown, and other embodiments will be obvious to those skilled in the art. In particular, it is possible to combine the embodiments and variants with each other.

Claims

Demands

1. A recessed optical connection device (1) comprising: - a plate (5) adapted to be fixed to a recessed block (3) in a wall, - a coiling box (7), the coiling box (7) being fixed to the plate (5) and adapted to receive at least one coiled optical fiber, and - an optical feedthrough (9) passing through the plate (5) and from which is adapted to extend at least one connector optical fiber (21) adapted to be coupled by a splice (35) with a cable optical fiber (31) of an optical cable (27) from the recessed block (3) and to be coiled in the coiling box (7), characterized in that: the plate (5) is adapted to be successively fixed to the recessed block (3) in a first fixing configuration and then in a second fixing configuration in which the plate (5) is reversed with respect to the first fixing configuration,the plate (5) having at least one peripheral notch (33) suitable for the optical cable (27) to pass through, such that: - in the first fixing configuration, the coiling box (7) is opposed to the recessed block (3) with respect to the plate (5) and a peripheral notch (33) is traversed by the optical cable (27), and - in the second fixing configuration, the coiling box (7) is housed in the recessed block (3) and the peripheral notch (33) is free of the optical cable (27).

2. A recessed optical connection device (1) according to claim 1, wherein the optical feedthrough (9) comprises at least one optical connection, each optical connection being formed, at a first end opposite the coiling housing (7), by an external optical socket for the connection of an external optical plug of equipment, and, at a second end on the side of the coiling housing (7), by an internal connector coupled to an optical plug (25) from which extends a plug optical fiber (21).

3. A recessed optical connection device (1) according to claim 1 or 2, comprising a lashing system (46), the lashing system (46) comprising a clamping device (47), the clamping device (47) being adapted to retain the optical cable (27) on the coiling housing (7) in the first fixing configuration and in the second fixing configuration.

4. Recessed optical connection device (1) according to claim 3, wherein the lashing system (46) is formed by the clamping device (47) and by a bearing surface (S) of the coiling housing (7), the clamping device (47) being adapted to hold the optical cable (27) against the bearing surface (S) in both the first fixing configuration and the second fixing configuration.

5. Recessed optical connection device (1) according to claim 3 or 4, wherein the docking system (46) is separated from the plate (5) by a predetermined minimum distance (D).

6. Recessed optical connection device (1) according to any one of claims 1 to 5, wherein the plate (5) has fixing holes (11) for fixing the plate (5) to the recessed block (3) by means of fixing screws (13), each fixing hole (11) comprising: - a passage portion (15) for the passage of the head of a fixing screw (13) through the passage portion (15), and - a fixing portion (17) for fixing the plate (5) by tightening between the fixing screw (13) and the recessed block (3).

7. Recessed optical connection device (1) according to any one of claims 1 to 6, which includes a retaining device (41) suitable for fixing at least one reinforcing strand (32) of the optical cable (27) to the coiling box (7).

8. Optical connection device (1) according to any one of claims 1 to 7, wherein the coiling housing (7) has at least one housing (43) suitable for receiving at least one splice (35).

9. A recessed optical connection device (1) according to claim 8, in which the housing (43) or each housing (43) is formed by two forks (45) delimiting between them a passage suitable for allowing the extraction of at least one splice (35) by a tool.

10. Method of mounting a recessed optical connection device (1) according to any one of claims 1 to 9 in a recessed block (3) in a wall, comprising the following steps: - P10 place the plate (5) so that the coiling box (7) is opposite the recessed block (3) and place the optical cable (27) in a peripheral notch (33), - P40 fix the plate (5) in the first fixing configuration, directly onto the recessed block (3) or onto an intermediate sleeve (67) itself fixed onto the recessed block (3), - P50 splice each plug optical fiber (21) with a cable optical fiber (31) to form a splice (35), - P60 house each splice (35) in the coiling box (7), - P70 coil each plug optical fiber (21) and each cable optical fiber (31) in the coiling box (7), - P80 disassemble the plate (5) from the first fixing configuration, remove the optical cable (27) from the peripheral notch (33), turn the plate (5) over, coil the optical cable (27) in the recessed block (3), and fix the plate (5) onto the recessed block (3) in the second fixing configuration.

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