WO2019108385A1 - Outil de division de ruban d'accès à mi-portée - Google Patents

Outil de division de ruban d'accès à mi-portée Download PDF

Info

Publication number
WO2019108385A1
WO2019108385A1 PCT/US2018/060757 US2018060757W WO2019108385A1 WO 2019108385 A1 WO2019108385 A1 WO 2019108385A1 US 2018060757 W US2018060757 W US 2018060757W WO 2019108385 A1 WO2019108385 A1 WO 2019108385A1
Authority
WO
WIPO (PCT)
Prior art keywords
ribbon
arm
optical fiber
flexure
mounting arm
Prior art date
Application number
PCT/US2018/060757
Other languages
English (en)
Inventor
John Wayne BEATTY
Justin Wade KEATTS
Lars Kristian Nielsen
Original Assignee
Corning Optical Communications LLC
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 Corning Optical Communications LLC filed Critical Corning Optical Communications LLC
Publication of WO2019108385A1 publication Critical patent/WO2019108385A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D1/00—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor
    • B26D1/01—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work
    • B26D1/02—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member
    • B26D1/03—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members
    • B26D1/035—Cutting through work characterised by the nature or movement of the cutting member or particular materials not otherwise provided for; Apparatus or machines therefor; Cutting members therefor involving a cutting member which does not travel with the work having a stationary cutting member with a plurality of cutting members for thin material, e.g. for sheets, strips or the like
    • 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
    • G02B6/46—Processes or apparatus adapted for installing or repairing optical fibres or optical cables
    • G02B6/56—Processes for repairing optical cables
    • G02B6/566—Devices for opening or removing the mantle
    • G02B6/567—Devices for opening or removing the mantle for ribbon cables
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/005—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for cutting cables or wires, or splicing
    • 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
    • G02B6/245—Removing protective coverings of light guides before coupling
    • 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
    • G02B6/25—Preparing the ends of light guides for coupling, e.g. cutting

Definitions

  • New optical fiber ribbons have been developed with smaller nominal spacing between the individual fibers in the ribbon (i.e., a reduction to fiber spacing of 125 pm).
  • One aspect of these new ribbons is added strength at the ribbon separation points to prevent premature splitting during the ribboning and cabling processes. This has made mid-span ribbon splitting more difficult.
  • a ribbon splitting tool comprises a flexure design that enables a shear point to be accurately placed perpendicular to an optical fiber ribbon during the splitting/separation action.
  • Other ribbon splitting tool designs use multiple parts, are very costly and bulky, and are not made for mid-span access.
  • Figure 1 is a perspective view of a ribbon splitter device, in accordance with aspects of the present disclosure
  • Figure 2 is a perspective view of the splitter module of the ribbon splitter device shown in Figure 1, in accordance with aspects of the present disclosure
  • Figure 3 is a side cutaway view of the splitter module mounted to the handle of the ribbon splitter device, in accordance with aspects of the present disclosure
  • Figure 4 is close up cross-sectional view of the end portion of the splitter module of the ribbon splitter device, in accordance with aspects of the present disclosure.
  • Figure 5 is a perspective view of an access location in an optical fiber cable with a ribbon stack, in accordance with aspects of the present disclosure.
  • a ribbon splitter device 10 includes a ribbon splitter module 20 mounted to a handle 50.
  • the ribbon splitter module 20 includes a flexure arm 22 and a ribbon mounting arm 24 that are integrally connected at a first end 26 of the splitter module 20.
  • the flexure arm 22 and the ribbon mounting arm 24 both extend away from the first end 26 and are separated from one another by a predetermined gap 28.
  • the first end 26 of the splitter module 26 acts as a hinge for a rotational relationship between the flexure arm 22 and the ribbon mounting arm 24 with the gap 28 determining the amount of movement any arm may have in relation to the other arm.
  • the flexure arm 22 has a distal end portion 30 with an ergonomic hump feature 32 and a lip 34 that curls around the distal end portion 36 of the mounting arm 24.
  • the distal end portion 36 of the mounting arm 24 has a ribbon slot 38 that separates the distal end portion 36 of the mounting arm 24 into a lower ribbon landing 40 and an upper ribbon landing 42.
  • a mid-span access location 60 is made in a fiber optic cable 62 at the desired location to access a desired optical fiber ribbon 70.
  • the lower landing portion of the device may have a very narrow thickness T, as shown in FIG. 4, such that the splitter module 20 is easy to slide into the ribbon stack, over other ribbons, and complete the necessary split.
  • a thickness T is less than 3 millimeters, preferably less than 2 millimeters, and may even be less than 1.3 millimeters.
  • Those edges that may come into contact with the ribbons or fibers of a cable may be beveled to prevent damage, such as is shown with respect to the distal end 34 of the flexure arm 22 and the lower ribbon landing 40.
  • splitting indicates a separation of one or more fibers away from the remaining fibers in a particular ribbon. Once split, the necessary fibers are easier to access and cut for splicing, for example.
  • a narrow width W of the splitter module 20 also makes it easy to slide the ribbon into the precision groove to the correct depth.
  • the narrow tool width W allows the splitting to be completed while using only 4-5 pounds of force. This thin design is required for mid-span access due to the nature of the process.
  • the splitter module 20 is slid around the target ribbon such that the ribbon 70 slides into the ribbon slot 38 until stopped by a detent end 39 of the ribbon slot.
  • the depth of the ribbon slot may be sized accordingly to accurately the splitting location every time for a particular width ribbon.
  • Different splitter modules 20 may be used with a single handle 50 and/or specific devices 10 may be made with a specific ribbon slot depth to permit efficient and accurate splitting of a ribbon between certain fibers in the ribbon every time.
  • a force F may be applied to the distal end 32 of the flexure arm 22.
  • Downward displacement of the flexure arm 22 in relation to the mounting arm 44 will force the ribbon 70 to split between edge 45 of the flexure arm 22 and a second edge 41 of the mounting arm 24.
  • an offset 47 allows the cut to be continuous and precise. For example, providing an offset 47 of less than 100 microns, preferably about 64 microns, between the movable top shear points to the bottom shear points allows for a precise cut between adjacent fibers of a ribbon.
  • the unitary design of the device 10 with a flexure arm 22 allows for greater than 20,000 splits without breaking and every split is repeatable and precise because there are no“moving” parts.
  • a hinged spring loaded arm instead of a machined flexure arm.
  • An advantage to a hinged version would be lower repair cost in case the arm gets worn out.
  • a hinged arm may lack the preciseness of having the flexure arm 22 and mounting arm 24 hinged in a unitary body.
  • the depth of ribbon slot 38 could be adjustable so that one tool could be used for all fiber split width variations. This could be achieved by having a T shaped bar that could be moved back and forth creating width. The bar could be indexed with a ball plunger for easy adjustment to the correct ribbon split depth.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

Un dispositif de division de ruban comprend une poignée ; et un module diviseur monté sur la poignée, le module diviseur ayant un bras de flexion et un bras de montage, le bras de flexion étant mobile en rotation par rapport au bras de montage, et le bras de montage ayant une fente de ruban pour fixer un ruban de fibre optique dans une relation perpendiculaire à une longueur longitudinale du bras de flexion.
PCT/US2018/060757 2017-11-30 2018-11-13 Outil de division de ruban d'accès à mi-portée WO2019108385A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201762592834P 2017-11-30 2017-11-30
US62/592,834 2017-11-30

Publications (1)

Publication Number Publication Date
WO2019108385A1 true WO2019108385A1 (fr) 2019-06-06

Family

ID=66664575

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2018/060757 WO2019108385A1 (fr) 2017-11-30 2018-11-13 Outil de division de ruban d'accès à mi-portée

Country Status (1)

Country Link
WO (1) WO2019108385A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4046045A (en) * 1976-12-20 1977-09-06 International Telephone And Telegraph Corporation Wire splitter for round conductor flat ribbon cable
US4179964A (en) * 1976-01-27 1979-12-25 K-G Devices Corporation Ribbon cable splitting device
US5268531A (en) * 1992-03-06 1993-12-07 Raychem Corporation Flat cable
US5325587A (en) * 1992-03-16 1994-07-05 Rostra Tool Company Wire stripper
US20020017335A1 (en) * 1998-11-30 2002-02-14 Denny Lo Method for preparation of shielded cables

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4179964A (en) * 1976-01-27 1979-12-25 K-G Devices Corporation Ribbon cable splitting device
US4046045A (en) * 1976-12-20 1977-09-06 International Telephone And Telegraph Corporation Wire splitter for round conductor flat ribbon cable
US5268531A (en) * 1992-03-06 1993-12-07 Raychem Corporation Flat cable
US5325587A (en) * 1992-03-16 1994-07-05 Rostra Tool Company Wire stripper
US20020017335A1 (en) * 1998-11-30 2002-02-14 Denny Lo Method for preparation of shielded cables

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