WO2019117950A1 - Dispositif de retenue de câble à fibres optiques ayant des coins coniques - Google Patents

Dispositif de retenue de câble à fibres optiques ayant des coins coniques Download PDF

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Publication number
WO2019117950A1
WO2019117950A1 PCT/US2017/066736 US2017066736W WO2019117950A1 WO 2019117950 A1 WO2019117950 A1 WO 2019117950A1 US 2017066736 W US2017066736 W US 2017066736W WO 2019117950 A1 WO2019117950 A1 WO 2019117950A1
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WO
WIPO (PCT)
Prior art keywords
fiber optic
optic cable
cable
wedge
port
Prior art date
Application number
PCT/US2017/066736
Other languages
English (en)
Inventor
Donald GROSS
Iuliu GORDEA
Original Assignee
All Systems Broadband, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by All Systems Broadband, Inc. filed Critical All Systems Broadband, Inc.
Priority to PCT/US2017/066736 priority Critical patent/WO2019117950A1/fr
Publication of WO2019117950A1 publication Critical patent/WO2019117950A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3897—Connectors fixed to housings, casing, frames or circuit boards
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/444—Systems or boxes with surplus lengths
    • G02B6/4441—Boxes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
    • G02B6/4439—Auxiliary devices
    • G02B6/4471—Terminating devices ; Cable clamps

Definitions

  • the present invention generally relates to optical communications equipment, and particularly relates to hardware for affixing fiber optical cabling to a fixed location.
  • Today’s communication networks provide transport of voice, video and data to both residential and commercial customers, with more and more of those customers being connected by fiber optic cables.
  • information is transmitted from one location to another by sending pulses of light through the fiber optic cables.
  • Fiber optic transmission provides several advantages over electrical transmission techniques, such as increased bandwidth and lower losses.
  • Termination points include enclosed boxes, equipment racks, bulkheads, shelves, etc. that accommodate fiber optical terminations and the associated circuitry. Installers use a variety of hardware to effectuate fiber optic terminations at termination points. Examples of this
  • the fiber optic hardware assembly includes a fiber optic cable retainer module.
  • the fiber optic cable retainer module includes a base section having a First side and a second side opposite the first side, a first fiber optic cable port extending away from the first side, a second fiber optic cable port extending away from the second side in an opposite direction as the first fiber optic cable port, and first and second retention mechanisms disposed at opposite ends of the base section.
  • Each of the first and second retention mechanisms are configured to securely retain the fiber optic cable retainer module to a mounting structure with complementary features.
  • the first and second fiber optic cable ports and the conduit collectively provide a passage that permits a loose fiber optic cable to pass completely through the fiber optic cable retainer module.
  • the assembly further includes a cable wedge that is insertable in the second fiber optic cable port.
  • the cable wedge comprises a central opening that maintains open communication between a first end of the cable wedge and a second end of the cable wedge that is opposite the first end.
  • the fiber optic hardware assembly includes a fiber optic cable retainer module.
  • the fiber optic cable retainer module includes first and second fiber optic cable ports that are spaced apart from one another, a retention mechanism that is configured to securely affix the fiber optic cable retainer module to a planar surface, and a conduit between the first and second fiber optic cable ports.
  • the first and second fiber optic cable ports and the conduit collectively provide a passage that permits a loose fiber optic cable to pass completely through the fiber optic cable retainer module.
  • the assembly further includes a cable wedge that is insertable in the second fiber optic cable port.
  • the cable wedge has a central opening that maintains open communication through the passage when the cable wedge is inserted in the cable wedge.
  • the central opening extends completely between first and second ends of the cable wedge.
  • the cable wedge is tapered such that a diameter of outer walls of the cable wedge decreases moving from the first end to the second end.
  • the fiber optic cable retainer module includes a base section having a first side and a second side opposite the first side, a first fiber optic cable port extending away from the first side, a second fiber optic cable port extending away from the second side in an opposite direction as the first fiber optic cable port, and a conduit in the base section between the first and second fiber optic cable ports.
  • the first and second fiber optic cable ports and the conduit collectively provide a passage that permits a loose fiber optic cable to pass completely through the fiber optic cable retainer module.
  • the first and second fiber optic cable ports are cylindrically shaped.
  • Fig. 1 depicts a two-port fiber optic cable retainer module, according to an embodiment.
  • Fig. 1A depicts a side-perspective view of the two-port fiber optic cable retainer module
  • Fig. 1B depicts an isometric-perspective view of the two- port fiber optic cable retainer module.
  • Fig. 2 depicts a four-port fiber optic cable retainer module, according to an embodiment.
  • Fig. 2A depicts a side-perspective view of the four-port fiber optic cable retainer module
  • Fig. 2B depicts an isometric-perspective of the four-port fiber optic cable retainer module.
  • Fig. 3A depicts a side-perspective view of the cable wedge
  • Fig. 3B depicts a top view of the cable wedge looking into a central opening of the cable wedge.
  • Fig. 4 depicts a four-port fiber optic cable retainer module with cable wedges inserted in the fiber optic cable ports, according to an embodiment.
  • Fig. 5 depicts a four-port fiber optic cable retainer module with cable wedges used to securely fasten a splayed fiber optic cable to the fiber optic cable retainer module, according to an embodiment.
  • Fig. 6 which includes Figs. 6A and 6B, depicts a two-port fiber optic cable retainer and a four-port fiber optic cable retainer each being positioned for insertion into correspondingly shaped openings of a panel, according to an embodiment.
  • Fig. 6A depicts a top- view perspective of the fiber optic cable retainer module and the panel
  • Fig. 6B depicts an isometric-view perspective of the fiber optic cable retainer module and the panel.
  • Fig. 7 which includes Figs. 7A and 7B, depicts a two-port fiber optic cable retainer and a four-port fiber optic cable retainer being inserted into correspondingly shaped openings of a panel, according to an embodiment.
  • Fig. 7A depicts a top- view perspective of the fiber optic cable retainer module and the panel
  • Fig. 7B depicts an isometric-view perspective of the fiber optic cable retainer module and the panel.
  • Fig. 8 which includes Figs. 8A and 8B, depicts a two-port fiber optic cable retainer and a four-port fiber optic cable retainer being inserted into a bulkhead with mounting rails that are designed to engage with the retention mechanisms of the fiber optic cable retainers.
  • Fig. 8 A depicts a top-view perspective of the fiber optic cable retainer module and the bulkhead
  • Fig. 8B depicts an isometric-view perspective of the fiber optic cable retainer module and the bulkhead.
  • a fiber optic hardware assembly for securely affixing a plurality of fiber optic cables (i.e., two or more fiber optic cables) to a fixed location within a termination point (e.g., a bulkhead or panel) is disclosed.
  • the fiber optic hardware assembly includes a fiber optic cable retainer module.
  • the fiber optic cable retainer module includes a base section with pairs of fiber optic cable ports extending away from one another in opposite directions. Conduits are provided between the pairs of fiber optic cable ports that provide a passage which permits a loose fiber optic cable to pass completely through the fiber optic cable retainer module.
  • the base section further includes a retention mechanism with features that are designed to secure fiber optic cable retainer module to a fixed location.
  • the fiber optic hardware assembly includes cable wedges that are dimensioned for insertion into the fiber optic cable ports.
  • the cable wedges may have a generally conical shape with a hollow central opening, and may be formed from a material with a soft, elastic composition.
  • the fiber optic cable retainer module and the cable wedges collectively provide a system for securely affixing the fiber optic cables to a fixed location with a great degree of strain relief for the fiber optic cables.
  • the cylindrical shape of cable wedge distributes pulling force applied to a fiber optic cable evenly over a relatively large surface area.
  • the cable wedge can be designed to absorb pulling forces. As a result, a substantial amount of force can be applied to the fiber optic cables that are secured by the fiber optic cable retainer module without breaking these cables.
  • the system eliminates the need for other costly and/or burdensome cable fastening solutions such as glue or crimp assembly. Minimal time and effort for cable preparation is required, as an installer only needs to strip and splay a portion of the protective exterior jacket from the optical cable.
  • An additional advantage of the system is flexibility with respect to different connector types and cable diameters.
  • the fiber optic cable ports can be dimensioned to match a variety of standard connector types, and different cable wedges can be used to provide compatibility a variety of different cable diameters.
  • the fiber optic cable retainer module 100 can be formed from rigid or quasi-rigid materials such as hard plastics, metals, and metal alloys. One or more of these materials can be sintered, molded, or injection molded, for example.
  • the fiber optic cable retainer module 100 includes a base section 102, a pair of first fiber optic cable ports 104, a pair of second fiber optic cable ports 106, a conduit 108 in the base section 102, and a pair of retention mechanisms 110.
  • the base section 102 includes a front panel section 112 with a planar outer face 126 that provides a front side 114 of the fiber optic cable retainer module 100.
  • the front panel section 112 may be elongated. That is, a length of the front panel section 112 as measured between opposite ends of the front panel section 112 may exceed a width of the front panel section 112 as measured between the planar outer face 126 and an inner face that is opposite from the planar outer face 126.
  • the base section 102 additionally includes an arch shaped section 116 with curved outer walls.
  • the arch shaped section 116 provides a rear side 118 of the fiber optic cable retainer module 100 that is opposite, i.e., faces away from, the front side 114 of the base section 102.
  • the arch shaped section 116 includes two branches. Each branch has a curved portion 120 that provides the curved outer walls and a straight portion 122 that extends towards the front panel section 112.
  • the base section 102 additionally includes a central bridge 124 that directly adjoins the curved portions 120 of the arch shaped section 116.
  • the central bridge 124 connects the arch shaped section 116 together with the front panel section 112.
  • the front panel section 112, the central bridge 124, and the arch shaped section 116 form a continuous structure.
  • the first fiber optic cable ports 104 extend away from the front side 114 of the base section 102 in a direction that is substantially perpendicular to the planar outer face 126 of the front panel section 112.
  • the first fiber optic cable ports 104 may have a substantially cylindrical shape with central openings 128 (shown in Figs. 6 and 7).
  • the central openings 128 of the first fiber optic cable ports 104 extend through the center of the first fiber optic cable ports 104 and penetrate through the front panel section 112.
  • the first fiber optic cable ports 104 provide open communication between the front side 114 of the fiber optic cable retainer module 100 and an interior region that is between the front panel section 112 and the arch shaped section 116.
  • the second fiber optic cable ports 106 extend in a direction that is substantially parallel to the direction of extension of the first fiber optic cable ports 104.
  • the second fiber optic cable ports 106 may have a substantially cylindrical shape with central openings 140.
  • the central openings 140 extend through the center of the second fiber optic cable ports 106 and penetrate through the curved portions 120 of the arch shaped section 116.
  • the second fiber optic cable ports 106 provide open communication between the rear side 118 of the fiber optic cable retainer module 100 and the interior region that is between the front panel section 112 and the arch shaped section 116.
  • the second fiber optic cable ports 106 may have different dimensions than the first fiber optic cable ports 104.
  • a diameter of the outer walls of the second fiber optic cable ports 106 and/or a diameter of the inner walls 142 of the second fiber optic cable ports 106 may be larger than corresponding diameters of the first fiber optic cable ports 104.
  • the conduits 108 are provided in the interior region of the fiber optic cable retainer module 100 that is between the front panel section 112 and the arch shaped section 116.
  • a conduit 108 is provided between each opposing pair of first and second fiber optic cable ports 104, 106.
  • the conduits 108 are provided on either side of the central bridge 124.
  • Each conduit 108 in combination with an opposing pair of the first and second fiber optic cable ports 104, 106 collectively provides a passage that permits loose fiber optic cable to pass completely through the fiber optic cable retainer module 100. That is, the first and second fiber optic cable ports 106 together with the conduit 108 form a chute between the front side 114 and rear side 118 of the fiber optic cable retainer module 100 for fiber optic cable to pass through.
  • the central opening 128 of the first fiber optic cable port 104 is aligned with the central opening 140 of the second fiber optic cable port 106. That is, when seen from directly above the first or second fiber optic cable ports 106, 104 the central openings 128, 140 of the opposing pairs of first and second fiber optic cable ports 104, 106 overlap with one another so that a direct open path through the fiber optic cable retainer module 100 exits.
  • the retention mechanisms 110 are disposed at opposite ends of the base section 102.
  • the retention mechanisms 110 are configured to securely affix the fiber optic cable retainer module 100 to a mounting structure with complementary features, i.e., features that are dimensioned to fit within the retention mechanism in a way that physically couples the fiber optic cable retainer module 100 to the mounting structure. Detailed examples of this will be described in further detail below with reference to Figs. 6-8.
  • the retention mechanisms 110 include each include a ramp 144 and a detent 146.
  • the detent 146 is formed in the inner face of the front panel section 112.
  • a recessed planar face 148 of the detent 146 is spaced apart from is substantially parallel to a planar end face 150 of the arch shaped section 116.
  • the ramp 144 protrudes away from the outer walls of the arch shaped section 116 along the straight portion 122 of the arch shaped section 116.
  • the ramp 144 includes an inclined planar face 152 that is disposed at an obtuse angle relative to the outer wall it protrudes away from.
  • the ramp 144 includes a planar front face 154 that forms a substantially perpendicular angle with the outer wall that it protrudes away from.
  • a fiber optic cable retainer module 100 is depicted, according to another embodiment.
  • the fiber optic cable retainer module 100 of Fig. 2 is substantially similar to the fiber optic cable retainer module 100 of Fig. 1, with the exception of the number of fiber optic cable ports.
  • the embodiment of Fig. 2 includes four pairs of the first and second fiber optic cable ports 104, 106.
  • the fiber optic cable retainer module 100 in the embodiment of Fig. 2 provides four passages for fiber optic cables.
  • a conduit 108 is provided between each spaced apart pair of the first and second fiber optic cable ports 104, 106 in the same manner as previously described.
  • the fiber optic cable retainer module 100 includes three of the central bridges 124 extending between the arch shaped section 116s and the front panel section 112.
  • the fiber optic cable retainer modules 100 shown in Figs. 1 and 2 represent just two examples of potential port configurations for the fiber optic cable retainer module 100. More generally, the fiber optic cable retainer module 100 can include any plurality (e.g., two, three, four, five, etc.) of the first and second fiber optic cable ports 104, 106.
  • a cable wedge 200 is depicted, according to an embodiment.
  • the cable wedge 200 is insertable in the second fiber optic cable ports 206 of the fiber optic cable retainer module 100.
  • the dimensioning and material composition of the cable wedge 200 is such that the cable wedge 200 will fit into one of the central openings 140 of the second fiber optic cable ports 206 using modest force and manipulation by hand from an installer.
  • the dimensioning and material composition of the cable wedge 200 is such that the cable wedge 200 presses against the inner walls 142 of the second fiber optic cable port 106 when inserted in the second fiber optic cable port 206.
  • the cable wedge 200 has sufficient compressibility to be able to enter the second fiber optic cable port 206 with modest pressure. That is, the material composition of the cable wedge 200 is sufficiently elastic such that the cable wedge 200 is easily compressed using tactile force.
  • the cable wedge 200 can be made from any of a variety of compressible materials, such as plastics, such as Styrofoam, and soft rubbers. Alternatively, less compressible materials can be used for the cable wedge 200, provided that the dimensioning of the cable wedge 200 provides sufficient clearance for entry of one end into the fiber optic cable ports 206. Examples of these harder materials include metal, harder plastics and rubber.
  • the cable wedge 200 has a central opening 202.
  • the central opening 202 maintains open communication between first and second opposite facing ends 204, 206 of the cable wedge 200. That is, the central opening 202 extends completely from the first end 204 to the second end 206 such that a complete passage is provided through a center of the cable wedge 200.
  • the central opening 202 is cylindrically shaped. That is, the inner walls 208 of the cable wedge 200 that surround the central opening 202 form a circle. More generally, the central opening 202 can have any of a variety of geometries that provide open communication between the first and second ends 204, 206.
  • a diameter of the central opening 202 can be, but is not necessarily, consistent throughout the length of the cable wedge 200 from the first end 204 to the second end 206.
  • the cable wedge 200 tapers inward moving from the first end 204 to the second end 206. That is, a diameter of the cable wedge 200 as measured between outer walls 210 of the cable wedge 200 decreases along the length of the cable wedge 200 as measured between the first 204 end the second end 206.
  • the depicted embodiment represents one example of a tapered configuration wherein the cable wedge 200 is conically shaped. That is, the outer walls 210 of the cable wedge 200 have a circular geometry, and a circumference of the circle formed by the outer walls 210 gradually decreases moving from the first end 204 to the second end 206. More generally, the outer walls 210 can have a variety of shapes, e.g., square, polygon, etc. Moreover, the taper may not be uniform. For example, the cable wedge 200 may include step shaped transitions or other acute changes in outer circumference.
  • a fiber optic cable retainer module 100 and a plurality of the cable wedges 200 are shown, according to an embodiment.
  • One of the cable wedges 200 is positioned for insertion above one of the second fiber optic cable ports 106.
  • the remaining cable wedges 200 have been inserted into the remaining second fiber optic cable ports 106.
  • the tapering of the cable wedge 200 is correlated to the dimensioning of the second fiber optic cable port 106. That is, the outer dimensions of the cable wedge 200 are dependent upon the interior dimensions of the second fiber optic cable port 106. This dependency is such that the cable wedge 200 can be inserted into the second fiber optic cable port 106 with minimal force, and, when inserted, the outer walls 210 of the cable wedge 200 press against the inner walls 142 of the second fiber optic cable port 106.
  • a first diameter of the second fiber optic cable port 106 is correlated to second and third diameters of the cable wedge 200. The first diameter is a minimum separation distance between the inner walls 142 of the second fiber optic cable port 106.
  • the second diameter is a diameter of the outer walls 210 of the cable wedge 200 at the first end 204 of the cable wedge 200.
  • the third diameter is a diameter of the outer walls 210 of the cable wedge 200 at the second end 206 of the cable wedge 200.
  • the second end 206 of the cable wedge 200 can be inserted into the second fiber optic cable port 106 and, as the cable wedge 200 is further inserted, eventually the outer walls 210 of the cable wedge 200 will press against the inner walls 142 of the second fiber optic cable port 106.
  • a fiber optic cable 300 extends through each one of the passages provided by the conduits 108 the first and second fiber optic cable ports 104, 106.
  • the fiber optic cables 300 each extended completely through the fiber optic cable retainer module 100.
  • the fiber optic cables 300 may be so-called pigtail cables, i.e., a fiber optic cable with exposed or expose-able optical fiber at one and a standardized connector (not shown) at the opposite end.
  • the fiber optic cables 300 include a jacketed portion 302 wherein an electrically insulating exterior jacket 304 covers the interior optical fiber 306.
  • This exterior jacket 304 can be made of a relatively thin (e.g., 250 pm) plastic that directly covers and surrounds the optical fibers 306.
  • the interior optical fiber 306 of the fiber optic cables 300 is exposed from the exterior jacket 304.
  • the fiber optic cables 300 include an exposed fiber portion 308.
  • the exterior jacket 304 is splayed. That is, one or more vertical slits 310 are formed in the exterior jacket 304 so that portions of the exterior jacket 304 fan out away from one another.
  • the installer can prepare individual fiber optic cables 300 by partially stripping the exterior jacket 304 away to produce the exposed fiber portion 308.
  • the splays can be formed by cutting the exterior jacket 304.
  • the stripped fiber optic cable 300 is inserted into one of the first fiber optic cable ports 104, through the adjacent conduit 108, and through the opposite facing second fiber optic cable port 306 on the other side of the conduit 108.
  • the fiber optic cable 300 is positioned such that the splayed transition is disposed in the second fiber optic cable port 106.
  • a cable boot 312 can be provided around the first fiber optic cable port 104.
  • the cable boot 312 can be a standardized endpoint structure that acts as a bend limiting mechanism for the fiber optic cable 300. When in place, the cable boot 312 resists lateral pulling forces such that the fiber optic cable 300 cannot be pivoted around the first fiber optic cable port 104 at a sharp angle.
  • the outer diameter of the fiber optic cable port 104 can be dimensioned to be compatible with any standardized and/or commercially available bend limiting boot.
  • the cable wedges 200 are used to securely affix the fiber optic cable 300 in a way that protects the exposed optical fibers 306. This is done as follows. The splayed portions of the exterior jacket 304 are pulled away from one another so that there is clearance between the exterior jacket 304 and the optical fiber 306 within the second fiber optic cable port 106, e.g., as shown in the leftmost second fiber optic cable port 106 in the figure.
  • the cable wedge 200 is inserted into the second fiber optic cable port 206 so that the exterior jacket 304 is pressed against interior walls of the second fiber optic cable port 106 by the cable wedge 200, e.g., as shown in the three rightmost second fiber optic cable ports 106 in the figure.
  • the cable wedge 200 in conjunction with the splayed fiber optic cable 300 as depicted in the three rightmost second fiber optic cable ports 106 of Fig. 5 provides a secure fit that retains the fiber optic cable 300 tightly within the second fiber optic cable ports 106. This secure fit is aided by compressive force generated by the cable wedge 200 (in the case that the cable wedge 200 is formed from a compressible material) and/or compressive force generated by the exterior jacket 304 of the fiber optic cable 300.
  • the cable wedge 200 When the cable wedge 200 is inserted into the second fiber optic cable port 106 with the fiber optic cable 300 splayed as depicted, the cable wedge 200 generates pressure that presses the splayed exterior jacket 304 against the inner walls 142 of the second fiber optic cable port 106.
  • the exposed optical fiber 306 that is routed through the central opening 202 of the cable wedge 200 is substantially restricted in its movement.
  • This exposed optical fiber 306 is substantially protected from damage because the soft and compressible material composition of the cable wedge 200 prevents the exposed optical fiber 306 from being pinched around abrupt hard surfaces of the fiber optic cable retainer module 100. That is, the exposed optical fiber 306 can be pulled in a direction that is non-perpendicular to the direction of extension of the second fiber optic cable ports 106, and the cable wedge 200 provides a cushion that absorbs a substantial amount of acute pressure at the end of the second fiber optic cable port 106.
  • the cable wedge 200 in conjunction with the splayed fiber optic cable 300 as depicted in the three rightmost second fiber optic cable ports 106 of Fig. 5 physically decouples the exterior jacket 304 from the optical fiber 306. That is, once the exterior jacket 304 is splayed and pressed against the interior walls of the second fiber optic cable port 106, tensile force applied exterior jacket 304 is independent from the optical fiber 306. Thus, the pinching of the exterior jacket 304 protects the terminated optical fiber 306 from external pull out forces by providing an alternate tension point to transfer external forces applied at the jacketed portion 302.
  • the clamping force generated by the cable wedge 200 against the splayed fiber optic cable 300 within the second fiber optic cable port 106 depends upon a number of factors, such as the material composition (e.g., compressibility) of the cable wedge 200 and/or the exterior jacket 304 of the fiber optic cable 300.
  • the dimensioning and geometric design of the second fiber optic cable port 106 and the cable wedge 200 influence the amount of retention force generated that decouples the splayed fiber optic cable 300 from the interior optical fiber 306.
  • different surface features e.g., roughened surfaces, step-shaped surfaces, interlocking surfaces, etc.
  • FIG. 6-7 an example of using the retention mechanisms 110 to secure the fiber optic cable retainer module 100 to a fixed location is depicted, according to an
  • the fiber optic cable retainer module 100 is secured to a panel 400 with an opening 402 that is dimensioned to receive the fiber optic cable retainer module 100.
  • the panel 400 may be provided within a termination box of a fiber optic termination point.
  • the dimensioning of the fiber optic cable retainer module 100 can be correlated to the width of the opening 400 (i.e., the distance between the opposing lateral edge sides of the openings) such that a maximum distance between the outer walls 156 of the arch shaped section 116 is slightly less than the width of the opening 402.
  • the maximum distance between the outer walls 156 of the arch shaped section 116 can be about 1-2 nm less than the width of the opening 402 in one embodiment.
  • the panel 400 includes two openings 402.
  • a first opening 402 has a dimensioning that is correlated to the width of the fiber optic cable retainer module 100 with four of the first and second fiber optic cable ports 104, 106.
  • a second opening 402 has a dimensioning that is correlated to the width of the fiber optic cable retainer module 100 with two of the first and second fiber optic cable ports 104, 106.
  • the fiber optic cable retainer module 100 is secured to the panel 400 in the following way. Initially, the fiber optic cable retainer module 100 is positioned in front of the panel 400 with the second side facing the front of the panel 400, i.e., as depicted in Fig. 6. The fiber optic cable retainer module 100 is moved towards the panel 400 so that the second side 118 of the fiber optic cable retainer module 100 penetrates the opening 402. As the fiber optic cable retainer module 100 is moved into the opening 402, the outer walls 156 of the arch shaped section 116 contact the lateral edge sides of the openings 142.
  • the material composition of the fiber optic cable retainer module 100 permits a degree of flexing action so that, despite the fact that the maximum with of the fiber optic cable retainer module 100 is larger than the width of the opening 142, the fiber optic cable retainer module 100 can be slid through the opening 142.
  • the detent 146 provides clearance for the planar end face 150 of the arch shaped section 116 to pass so that, when the arch shaped section 116 flexes as it slides through the opening 142, the planar end face 150 of the arch shaped section 116 does not contact the front panel section 112.
  • the fiber optic cable retainer module 100 After the fiber optic cable retainer module 100 is moved through the opening 142 in the above described manner, it remains securely affixed to the panel 400 by the interaction of the retention mechanisms 110 with the panel 400.
  • the opposing surfaces of the retention mechanisms 110 restrict movement of the fiber optic cable retainer module 100 once secured in place in the manner depicted in Fig. 7.
  • an inner face 158 of the front panel section 112 that is immediately adjacent to the detent 146 is flush against the front surface of the panel 400.
  • the end 160 of the arch shaped section 116 is flush against the rear surface of the panel 400. In this way, movement of the fiber optic cable retainer is restricted in both directions that are perpendicular to the panel 400.
  • the fiber optic cable retainer module 100 can be removed from the opening 142 by squeezing the arch shaped section 116 such that it flexes inward and clears the lateral edge sides of the openings 142.
  • the fiber optic cable retainer module 100 is secured to a bulkhead 500 with a pair of mounting rails.
  • the mounting rails of the bulkhead 500 include features that are adapted to interact with the retention mechanisms 110 of the fiber optic cable retainer module 100.
  • an outer mounting rail 502 of the bulkhead 500 includes a snap-in perforation 504.
  • the geometry of the snap-in perforation 504 is correlated to the footprint of the ramp 144.
  • An inner mounting rail 506 has a width that is correlated to the separation distance between the ramp 144 and the inner face 158 (as shown in Fig. 7) of the front panel section 112.
  • the dimensioning of the fiber optic cable retainer module 100 can be correlated to the distance between the inner and outer mounting rails 506, 502 such that a maximum distance between the outer walls 156 of the arch shaped section 116 is slightly less than (e.g., about 1-2 mm) the distance between the inner and outer mounting rail 502, 506.
  • the fiber optic cable retainer module 100 is secured to the bulkhead 500 in the following way. Initially, the fiber optic cable retainer module 100 is positioned in front of the bulkhead 500 with the second side facing 118 the front of the bulkhead 500, e.g., in a similar position as shown in Fig. 6. The fiber optic cable retainer module 100 is moved towards the bulkhead 500 so that the second side 118 of the fiber optic cable retainer module 100 penetrates through the gap between the outer and inner mounting rails 502, 506. As the fiber optic cable retainer module 100 is moved into the gap, the outer walls 156 of the arch shaped section 116 contact the outer and inner mounting rails 502, 506.
  • the material composition of the fiber optic cable retainer module 100 permits a degree of flexing action so that, despite the fact that the maximum with of the fiber optic cable retainer module 100 is larger than the distance between the outer and inner mounting rails 502, 506, the fiber optic cable retainer module 100 can be slid through the outer and inner mounting rails 502, 506.
  • the detent 146 provides clearance for the end of the arch shaped section 116 so that, when the arch shaped section 116 flexes as it contacts the outer and inner mounting rails 502, 506, the planar end face 150 of the arch shaped section 116 does not contact the front panel section 112.
  • the fiber optic cable retainer module 100 After the fiber optic cable retainer module 100 is moved through the gap between the inner and outer mounting rails 502, 506, it remains securely affixed to the bulkhead 500 by the interaction of the retention mechanisms 110 with the bulkhead 500.
  • the inner face 158 of the front panel section 112 that is immediately adjacent to the detent 146 is flush against the front surfaces of the bulkhead 500.
  • the inner face 158 of the front panel section 112 is flush against the planar face of the inner mounting rail 506.
  • the ramp 144 On the opposite side of the fiber optic cable retainer, the ramp 144 is engaged with the snap-in perforation 504 of the outer mounting rail 502.
  • the planar front face 154 of the ramp 144 (as shown Fig.
  • the term“substantially” encompasses absolute conformity with a requirement as well as minor deviation from absolute conformity with the requirement due to manufacturing process variations, assembly, and other factors that may cause a deviation from the ideal. Provided that the deviations are not significant enough to prevent the structure from being assembled in the manner described herein, the term“substantially” encompasses any of these deviations.
  • the terms“having,”“containing,”“including,”“comprising” and the like are open-ended terms that indicate the presence of stated elements or features, but do not preclude additional elements or features.
  • the articles“a,”“an” and“the” are intended to include the plural as well as the singular, unless the context clearly indicates otherwise.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Light Guides In General And Applications Therefor (AREA)

Abstract

L'invention concerne un ensemble matériel à fibres optiques qui comprend un module de retenue de câble à fibres optiques comprenant une section de base, un premier orifice de câble à fibres optiques s'étendant à l'opposé d'un premier côté, un second orifice de câble à fibres optiques s'étendant à l'opposé d'un second côté opposé, un conduit entre les premier et second orifices de câble à fibres optiques, et des premier et second mécanismes de retenue. Les mécanismes de retenue fixent le module de retenue de câble à fibres optiques sur une structure de montage. Les premier et second orifices de câble à fibres optiques et le conduit fournissent collectivement un passage qui permet à un câble à fibres optiques libre de traverser le module de retenue de câble à fibres optiques. L'ensemble comprend en outre un coin de câble qui est apte à être inséré dans le second orifice de câble à fibres optiques. Le coin de câble a une ouverture centrale qui maintient une communication ouverte entre des première et seconde extrémités opposées se faisant face du coin de câble.
PCT/US2017/066736 2017-12-15 2017-12-15 Dispositif de retenue de câble à fibres optiques ayant des coins coniques WO2019117950A1 (fr)

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Application Number Priority Date Filing Date Title
PCT/US2017/066736 WO2019117950A1 (fr) 2017-12-15 2017-12-15 Dispositif de retenue de câble à fibres optiques ayant des coins coniques

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PCT/US2017/066736 WO2019117950A1 (fr) 2017-12-15 2017-12-15 Dispositif de retenue de câble à fibres optiques ayant des coins coniques

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WO2019117950A1 true WO2019117950A1 (fr) 2019-06-20

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986625A (en) * 1985-12-26 1991-01-22 Amp Incorporated Optical fiber connector with retainer
US5418874A (en) * 1994-01-19 1995-05-23 At&T Corp. Force transfer system for an optical fiber connector
US20100178022A1 (en) * 2009-01-14 2010-07-15 Schroeder Michael D Cable retainer assembly and method for positioning the same

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4986625A (en) * 1985-12-26 1991-01-22 Amp Incorporated Optical fiber connector with retainer
US5418874A (en) * 1994-01-19 1995-05-23 At&T Corp. Force transfer system for an optical fiber connector
US20100178022A1 (en) * 2009-01-14 2010-07-15 Schroeder Michael D Cable retainer assembly and method for positioning the same

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