EP0871911A1 - Optical fiber splice holder and strain relief - Google Patents

Optical fiber splice holder and strain relief

Info

Publication number
EP0871911A1
EP0871911A1 EP96916485A EP96916485A EP0871911A1 EP 0871911 A1 EP0871911 A1 EP 0871911A1 EP 96916485 A EP96916485 A EP 96916485A EP 96916485 A EP96916485 A EP 96916485A EP 0871911 A1 EP0871911 A1 EP 0871911A1
Authority
EP
European Patent Office
Prior art keywords
splice
holder
channels
set forth
cable
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP96916485A
Other languages
German (de)
French (fr)
Inventor
David Ray Radliff
Scott Alan Keener
Robert E. Stough
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Whitaker LLC
Original Assignee
Whitaker 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
Priority claimed from US08/453,157 external-priority patent/US5566268A/en
Priority claimed from US08/453,739 external-priority patent/US5530786A/en
Application filed by Whitaker LLC filed Critical Whitaker LLC
Publication of EP0871911A1 publication Critical patent/EP0871911A1/en
Withdrawn legal-status Critical Current

Links

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
    • G02B6/3628—Mechanical coupling means for mounting fibres to supporting carriers
    • G02B6/3632—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means
    • G02B6/3636—Mechanical coupling means for mounting fibres to supporting carriers characterised by the cross-sectional shape of the mechanical coupling means the mechanical coupling means being grooves
    • 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
    • G02B6/3616—Holders, macro size fixtures for mechanically holding or positioning fibres, e.g. on an optical bench
    • 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
    • G02B6/3801—Permanent connections, i.e. wherein fibres are kept aligned by mechanical means
    • 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
    • G02B6/4453—Cassettes
    • G02B6/4454—Cassettes with splices
    • 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
    • G02B6/255—Splicing of light guides, e.g. by fusion or bonding
    • G02B6/2558—Reinforcement of splice joint
    • 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
    • G02B6/44765—Terminating devices ; Cable clamps with means for strain-relieving to exterior cable layers

Definitions

  • the present invention relates to the field of optical fiber interconnection and more particularly to strain relief members and holders for optical fiber cable.
  • a plurality of pairs of associated optical fibers are to be interconnected and such interconnections must thereafter be held securely and carefully, usually in an organizer tray or cassette within a larger enclosure or cabinet, and usually in an array of such trays or cassettes.
  • Such trays must also hold generous portions of the fibers adjacent the interconnections, or splices, to permit splice repair without requiring cable replacement.
  • the trays or cassettes also provide for securing jacketed portions of the cables containing one or more of the optical fibers, at ends of the trays.
  • the splice connections comprise fusion of the ends or end lengths of the associated optical fibers, or adhesive bonding, or precision clamping, and the thus-fused fiber ends are preferably maintained within a protective sleeve or adapter to maintain the precision alignment of the fibers and provide a level of physical protection and strain relief to the coupling.
  • One conventional method for securing optical fiber cables at ends of organizer trays has been to utilize cable ties that extend through holes in the bottom wall of a tray at each end and are snapped overtop of respective jacketed cable portions, or to utilize cable clamps in similar fashion. Within the tray the optical fibers are broken out from the jacket for ends of the optical fibers to be spliced or coupled, with such splice connections to be maintained within grooved holders centrally located between the tray ends or cable exits.
  • the invention comprises a holder for fiber optic members with a member of resilient material including an array of channels to receive a jacketed fiber optic cable.
  • the channels are defined by protrusions therebetween. At least one of the protrusions has a narrow width slot extending parallel to the channels. The slot being complementary to a thickness of a fiber optic ribbon cable and having a depth sufficient to receive the ribbon cable thereinto.
  • the invention further comprises a holder for fiber optic members with a member of resilient material including an array of channels. At least one of the channels has a depth equivalent to twice the diameter of a single fiber splice coupling and has a first constriction along a top surface of the channel. The channels have a second constriction along sides of the channel midway from the top surface and a bottom of the channel defining upper and lower channel portion.
  • FIGURE 1 is an isometric view of a splice tray having cable strain relief members of the present invention at ends thereof and a splice holder centrally disposed therebetween;
  • FIGURE 2 is an isometric view of the splice holder of FIG. 1, with a representative single-fiber jacketed cable and a representative ribbon cable held therein;
  • FIGURES 3 and 4 are plan and elevation views of the splice holder
  • FIGURE 5 is an enlarged cross-section view of FIG. 3 taken along lines 5-5 thereof and showing a ribbon- receiving slot and a cable-receiving channel at a cable tie aperture;
  • FIGURE 6 is an enlarged view of an end portion of FIG. 4.
  • a splice tray or organizer 10 includes a tray body 12 having a bottom wall 14, opposed ends 16,18 and opposed side walls 20,22, as well as a preferably an optionally transparent cover member (not shown) that is securable to tray body 12.
  • a splice holder 24 is affixed to bottom wall 14 centrally positioned between ends 16,18 within which splice connections of pairs of associated optical fibers of single-fiber cables, or splice connections of arrays of fibers of associated ribbon cables may be positioned.
  • Tray 10 provides substantial fiber-holding space between the ends for generous loops of discrete fibers after being broken out from jacketed cables and ribbon cable to be disposed therein that are preferably covered by the protective lid or cover member placed thereover and affixed to tray body 12.
  • Cable strain relief holders 30 are affixed to tray body 12 at respective ends 16,18, such as by use of adhesive or optionally by fasteners.
  • Strain relief holder 30 includes a plurality of generally parallel elongate channels 32 formed into and along top surface 34 extending between first and second ends 36,38, with elongate protrusions 40 positioned between adjacent channels 32.
  • Channels 32 are dimensioned to receive thereinto, if desired, jacketed portions of fiber optic cables 26 (as shown in FIG. 2) that have for example diameters of 3 mm, and each is undercut to form retention ledges 42 near top surface 34 defining therebetween a constriction less wide than the cable that will hold a jacketed cable 26 in position once inserted.
  • Each protrusion 40 preferably has a narrow slot 44 formed thereinto from top surface 34, with narrow slot 44 being dimensioned to approximately equal the thickness of a ribbon cable to receive a ribbon cable 28 thereinto.
  • Narrow slot 44 is also of appropriate width to receive thereinto a buffered portion of a single fiber after being broken out from the jacket of a cable 26, if desired.
  • the entrance to each slot 44 includes chamfers 46 defining a lead-in facilitating insertion of a ribbon cable thereinto. Slots 44 also can assist in insertion of jacketed cables 26 into channels 32 by allowing upper portions of protrusions 40 to be flexed outwardly when a cable 26 is urged into the slightly narrower entrance to a channel 32 above retention ledges 42.
  • Strain relief holder 30 may also be provided with cable tie apertures 50,52 that are formed to be aligned with corresponding apertures (not shown) in the bottom wall 14 of splice tray 10, permitting mounting of conventional cable ties to the splice tray to supplement the strain relief characteristics of the strain relief holder, if desired.
  • Cable tie apertures 50 are shown intersecting each channel 32 and are to be used when holder 30 is to be used with ribbon cable that utilizes slots 44, while cable tie apertures 52 are shown intersecting slots 44 that are to be used when holder 30 is to be used with jacketed single fiber cable.
  • strain relief holders 30 may be utilized within the splice tray if desired, positioned on both sides of a splice coupler site to hold adjacent portions of buffered fiber or ribbon cable. Similarly, strain relief holders may be utilized independently of a splice tray per se, for similar purposes, with the bottom surface of the bottom member affixed to a surface such as by adhesive, double sided tape and peelable transfer paper, or other fasteners. Strain relief holder 30 may be made for example of a resilient material such as an elastomeric material like, for example, SARLINK polypropylene based elastomer, Part No.
  • holder 30 generally has continuous cross-sections therealong, with cable tie apertures 50,52 being formable by simple secondary operations.
  • the strain relief member of the present invention may be utilized in pairs, one adjacent each side of the splice couplings near the center of a splice tray if desired.
  • the present invention may also be used independently of a splice tray if desired by simply being secured to a selected surface in a desired orientation to receive and hold fiber optic members such as jacketed fiber optic cable, discrete buffered optical fiber or ribbon cable. Variations and modifications may occur to others that are within the spirit of the invention and the scope of the claims.
  • FIGS. 7 to 9 illustrate a first embodiment of the splice holder 24 of the present invention, a generally thick planar member of elastomeric material having opposed ends 60,62 and opposed side edges 64,66 dimensioned to.be placed into splice tray 10 between side walls 20,22 and centrally disposed between tray ends (FIG. 1) .
  • Splice holder 24 may be easily mounted onto bottom wall 14 of splice tray 10 such as by adhesive or cement, or fasteners, or double sided tape and also peelable transfer paper.
  • a centrally located aperture 68 is utilized to permit receipt of a vertical rod therethrough for stacking of several splice trays.
  • An array of first channels 70 is-defined into top surface 72 of holder 24 shown in two regions adjacent side edges 64,66.
  • Several second channels 90 are shown between the two first channel regions and the central region 92 containing aperture 68.
  • Mass fusion splice couplings very similar to coupling 94 may also be used with a plurality of discrete buffered fibers not in ribbon cable form, but that are preferably bonded to each other adjacent and outwardly from the ends of the mass fusion coupling.
  • a constriction 98 is defined at the entrance along top surface 72 to hold mass fusion splice coupling 94 therein upon insertion thereinto and therealong.
  • Such fusion splice couplings may be formed such as by use of fiber holders applied by a FITEL Optical Fiber Fusion
  • Each first channel 70 has a first constriction 74 defined at the entrance along top surface 72, and each first channel 70 is shown to include a second constriction 76 midway to channel bottom 78 to create upper and lower portions 80, 82 each having a general dimension about equal to the diameter of a single-fiber fusion splice coupling 84 used with single fibers 26.
  • each first channel 70 can receive and hold two single-fiber splice couplings 84 therein, economizing on space to increase the density of splice couplings on the splice tray.
  • Each splice holder 24 may be made for example of elastomeric material such as SARLINK polypropylene based elastomer, Part No. 3170 or 3160 or 9760 all sold by DSM
  • FIG. 10 illustrates a second embodiment of the present invention of a splice holder 100.
  • a central splice holding portion 102 is shown to have a top surface 104 having formed thereinto generally first channels 106 for single-fiber splice couplings, and second channels 108 for mass fusion splice couplings and may be identical to first and second channels 70,90 of splice holder 24 as shown in FIGS. 7 to 9.
  • a thin, flat base portion 110 extends from opposed first and second splice holding ends 112,114 to strain relief regions 116 spaced from first and second ends 112,114.
  • Each strain relief region 116 includes an array of narrow width slots 118,120 extending into top surface 104 and aligned with first channels 106 and second channels 108 respectively.
  • each slot 118 is equivalent to the diameter of a single buffered fiber 26, and the width of each slot 120 is equivalent to the thickness of ribbon cable 28.
  • Strain relief region 116 thus at least holds a portion of each fiber 26 and ribbon cable 28 at a selected distance from the splice holding central portion 102 and thus serves to isolate the splice couplings from stress resulting from different lateral directions assumed by the portions of the fibers and cables extending from the splice holder.
  • the splice holder of the present invention may be utilized independently of a splice tray if desired by simply being secured to a selected surface in a desired orientation to receive and hold fiber optic couplings such as of discrete or single fiber optic cable or of ribbon cable. Variations and modifications may occur to others that are within the spirit of the invention and the scope of the claims.

Landscapes

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

Abstract

A holder (30) for jacketed fiber optic cable (26) or ribbon cable (28) having channels (32) extending along a top surface (34), with constrictions (42) to hold jacketed fiber optic cable (26) therein upon insertion with nondeforming strain relief. Protrusions (40) between the channels (32) include narrow slots (44) thereinto to hold ribbon cable (28) therein with nondeforming strain relief. A splice holder (24) having first channels (70) having upper and lower portions (80, 82) separated by a constriction (76) with each portion adapted to hold a respective single-fiber splice coupling (84). Second channels (90) have a large diameter adapted to hold a multi-fiber mass fusion splice coupling (94) used with ribbon cable. Both the first and second channels (70, 90) having constrictions along their entrances of less width than a splice coupling (84, 94) to be inserted thereinto. Splice holder (24) may be adhered to a bottom wall (14) of a splice tray (10).

Description

OPTICAL FIBER SPLICE HOLDER AND STRAIN RELIEF
The present invention relates to the field of optical fiber interconnection and more particularly to strain relief members and holders for optical fiber cable.
In multiple fiber interconnection arrangements, a plurality of pairs of associated optical fibers are to be interconnected and such interconnections must thereafter be held securely and carefully, usually in an organizer tray or cassette within a larger enclosure or cabinet, and usually in an array of such trays or cassettes. Such trays must also hold generous portions of the fibers adjacent the interconnections, or splices, to permit splice repair without requiring cable replacement. Preferably the trays or cassettes also provide for securing jacketed portions of the cables containing one or more of the optical fibers, at ends of the trays. The splice connections comprise fusion of the ends or end lengths of the associated optical fibers, or adhesive bonding, or precision clamping, and the thus-fused fiber ends are preferably maintained within a protective sleeve or adapter to maintain the precision alignment of the fibers and provide a level of physical protection and strain relief to the coupling. One conventional method for securing optical fiber cables at ends of organizer trays has been to utilize cable ties that extend through holes in the bottom wall of a tray at each end and are snapped overtop of respective jacketed cable portions, or to utilize cable clamps in similar fashion. Within the tray the optical fibers are broken out from the jacket for ends of the optical fibers to be spliced or coupled, with such splice connections to be maintained within grooved holders centrally located between the tray ends or cable exits.
It is desired to provide a strain relief member at cable exits from a tray or organizer or cassette, that provides sufficient clamping of jacketed portions of fiber optic cables to relieve strain on the splice connection or coupling, without compressing or otherwise deforming the optical fiber therewithin.
It is desired to provide a holder for the array of splice connections of a plurality of pairs of associated fibers.
It is also desired to provide a strain relief member for clamping of multifiber fiber optic ribbon cable to define strain relief therefor. The invention comprises a holder for fiber optic members with a member of resilient material including an array of channels to receive a jacketed fiber optic cable. The channels are defined by protrusions therebetween. At least one of the protrusions has a narrow width slot extending parallel to the channels. The slot being complementary to a thickness of a fiber optic ribbon cable and having a depth sufficient to receive the ribbon cable thereinto.
The invention further comprises a holder for fiber optic members with a member of resilient material including an array of channels. At least one of the channels has a depth equivalent to twice the diameter of a single fiber splice coupling and has a first constriction along a top surface of the channel. The channels have a second constriction along sides of the channel midway from the top surface and a bottom of the channel defining upper and lower channel portion. An embodiment of the present invention will now be described by way of example with reference to the accompanying drawings.
FIGURE 1 is an isometric view of a splice tray having cable strain relief members of the present invention at ends thereof and a splice holder centrally disposed therebetween;
FIGURE 2 is an isometric view of the splice holder of FIG. 1, with a representative single-fiber jacketed cable and a representative ribbon cable held therein;
FIGURES 3 and 4 are plan and elevation views of the splice holder;
FIGURE 5 is an enlarged cross-section view of FIG. 3 taken along lines 5-5 thereof and showing a ribbon- receiving slot and a cable-receiving channel at a cable tie aperture; and
FIGURE 6 is an enlarged view of an end portion of FIG. 4.
A splice tray or organizer 10 includes a tray body 12 having a bottom wall 14, opposed ends 16,18 and opposed side walls 20,22, as well as a preferably an optionally transparent cover member (not shown) that is securable to tray body 12. A splice holder 24 is affixed to bottom wall 14 centrally positioned between ends 16,18 within which splice connections of pairs of associated optical fibers of single-fiber cables, or splice connections of arrays of fibers of associated ribbon cables may be positioned. Tray 10 provides substantial fiber-holding space between the ends for generous loops of discrete fibers after being broken out from jacketed cables and ribbon cable to be disposed therein that are preferably covered by the protective lid or cover member placed thereover and affixed to tray body 12. Cable strain relief holders 30 are affixed to tray body 12 at respective ends 16,18, such as by use of adhesive or optionally by fasteners. Strain relief holder 30 includes a plurality of generally parallel elongate channels 32 formed into and along top surface 34 extending between first and second ends 36,38, with elongate protrusions 40 positioned between adjacent channels 32. Channels 32 are dimensioned to receive thereinto, if desired, jacketed portions of fiber optic cables 26 (as shown in FIG. 2) that have for example diameters of 3 mm, and each is undercut to form retention ledges 42 near top surface 34 defining therebetween a constriction less wide than the cable that will hold a jacketed cable 26 in position once inserted.
Each protrusion 40 preferably has a narrow slot 44 formed thereinto from top surface 34, with narrow slot 44 being dimensioned to approximately equal the thickness of a ribbon cable to receive a ribbon cable 28 thereinto. Narrow slot 44 is also of appropriate width to receive thereinto a buffered portion of a single fiber after being broken out from the jacket of a cable 26, if desired. Preferably the entrance to each slot 44 includes chamfers 46 defining a lead-in facilitating insertion of a ribbon cable thereinto. Slots 44 also can assist in insertion of jacketed cables 26 into channels 32 by allowing upper portions of protrusions 40 to be flexed outwardly when a cable 26 is urged into the slightly narrower entrance to a channel 32 above retention ledges 42.
Strain relief holder 30 may also be provided with cable tie apertures 50,52 that are formed to be aligned with corresponding apertures (not shown) in the bottom wall 14 of splice tray 10, permitting mounting of conventional cable ties to the splice tray to supplement the strain relief characteristics of the strain relief holder, if desired. Cable tie apertures 50 are shown intersecting each channel 32 and are to be used when holder 30 is to be used with ribbon cable that utilizes slots 44, while cable tie apertures 52 are shown intersecting slots 44 that are to be used when holder 30 is to be used with jacketed single fiber cable.
It can be seen that strain relief holders 30 may be utilized within the splice tray if desired, positioned on both sides of a splice coupler site to hold adjacent portions of buffered fiber or ribbon cable. Similarly, strain relief holders may be utilized independently of a splice tray per se, for similar purposes, with the bottom surface of the bottom member affixed to a surface such as by adhesive, double sided tape and peelable transfer paper, or other fasteners. Strain relief holder 30 may be made for example of a resilient material such as an elastomeric material like, for example, SARLINK polypropylene based elastomer, Part No. 3170 or 3160 or 9760 sold by DSM Thermoplastic Elastomers Inc., Leominster, MA, and may be extruded rather than individually molded since holder 30 generally has continuous cross-sections therealong, with cable tie apertures 50,52 being formable by simple secondary operations.
The strain relief member of the present invention may be utilized in pairs, one adjacent each side of the splice couplings near the center of a splice tray if desired. The present invention may also be used independently of a splice tray if desired by simply being secured to a selected surface in a desired orientation to receive and hold fiber optic members such as jacketed fiber optic cable, discrete buffered optical fiber or ribbon cable. Variations and modifications may occur to others that are within the spirit of the invention and the scope of the claims.
FIGS. 7 to 9 illustrate a first embodiment of the splice holder 24 of the present invention, a generally thick planar member of elastomeric material having opposed ends 60,62 and opposed side edges 64,66 dimensioned to.be placed into splice tray 10 between side walls 20,22 and centrally disposed between tray ends (FIG. 1) . Splice holder 24 may be easily mounted onto bottom wall 14 of splice tray 10 such as by adhesive or cement, or fasteners, or double sided tape and also peelable transfer paper. A centrally located aperture 68 is utilized to permit receipt of a vertical rod therethrough for stacking of several splice trays. An array of first channels 70 is-defined into top surface 72 of holder 24 shown in two regions adjacent side edges 64,66. Several second channels 90 are shown between the two first channel regions and the central region 92 containing aperture 68. Each second channel
90 is generally cylindrical, having a depth and diameter equivalent to the outer diameter of a multi-fiber mass fusion splice coupling 94 such as is used with ribbon cable 28. Mass fusion splice couplings very similar to coupling 94 may also be used with a plurality of discrete buffered fibers not in ribbon cable form, but that are preferably bonded to each other adjacent and outwardly from the ends of the mass fusion coupling. A constriction 98 is defined at the entrance along top surface 72 to hold mass fusion splice coupling 94 therein upon insertion thereinto and therealong. Such fusion splice couplings may be formed such as by use of fiber holders applied by a FITEL Optical Fiber Fusion
- 6 -
UTE SHEET. RULE 26 Splicer S198A manufactured by Furukawa Electric and sold by JTS FITEL Inc. of Ottawa, Canada.
Each first channel 70 has a first constriction 74 defined at the entrance along top surface 72, and each first channel 70 is shown to include a second constriction 76 midway to channel bottom 78 to create upper and lower portions 80, 82 each having a general dimension about equal to the diameter of a single-fiber fusion splice coupling 84 used with single fibers 26. Thereby, each first channel 70 can receive and hold two single-fiber splice couplings 84 therein, economizing on space to increase the density of splice couplings on the splice tray.
A pair of narrow width slots 96 are shown adjacent central aperture 68 in central region 92, that are used for providing deflectability of the inside walls of the large channels 90 adjacent central region 92. Each splice holder 24 may be made for example of elastomeric material such as SARLINK polypropylene based elastomer, Part No. 3170 or 3160 or 9760 all sold by DSM
Thermoplastic Elastomers Inc., Leominster, MA, and may be extruded rather than individually molded since holder 24 generally has a continuous cross-section therealong, with central aperture 68 being formable by a simple secondary operation.
FIG. 10 illustrates a second embodiment of the present invention of a splice holder 100. A central splice holding portion 102 is shown to have a top surface 104 having formed thereinto generally first channels 106 for single-fiber splice couplings, and second channels 108 for mass fusion splice couplings and may be identical to first and second channels 70,90 of splice holder 24 as shown in FIGS. 7 to 9. A thin, flat base portion 110 extends from opposed first and second splice holding ends 112,114 to strain relief regions 116 spaced from first and second ends 112,114. Each strain relief region 116 includes an array of narrow width slots 118,120 extending into top surface 104 and aligned with first channels 106 and second channels 108 respectively. The width of each slot 118 is equivalent to the diameter of a single buffered fiber 26, and the width of each slot 120 is equivalent to the thickness of ribbon cable 28. Strain relief region 116 thus at least holds a portion of each fiber 26 and ribbon cable 28 at a selected distance from the splice holding central portion 102 and thus serves to isolate the splice couplings from stress resulting from different lateral directions assumed by the portions of the fibers and cables extending from the splice holder.
The splice holder of the present invention may be utilized independently of a splice tray if desired by simply being secured to a selected surface in a desired orientation to receive and hold fiber optic couplings such as of discrete or single fiber optic cable or of ribbon cable. Variations and modifications may occur to others that are within the spirit of the invention and the scope of the claims.

Claims

WHAT IS CLAIMED IS:
1. A holder for fiber optic members comprising a member of resilient material including an array of channels (32) to receive a jacketed fiber optic cable (26), the channels being defined by protrusions (40) therebetween, characterized in that at least one of the protrusions (40) having a narrow width slot (44) extending parallel to the channels (32), the slot (44) being complementary to a thickness of a fiber optic ribbon cable (28) and having a depth sufficient to receive the ribbon cable thereinto.
2. A holder as set forth in claim 1 wherein said slots include chamfered (46) entrances defining lead-ins facilitating ribbon cable insertion.
3. A holder as set forth in claim 1 wherein said resilient material is elastomeric material.
4. A holder as set forth in claim 3 wherein said elastomeric material is a polypropylene based elastomer.
5. The holder as set forth in claims 1-3, wherein the member of resilient material is installed in a fiber optic splice tray (10) and provides strain relief for the cable installed therein.
6. A holder for fiber optic members comprising a member (24) of resilient material including an array of channels (70) at least one of the channels (70) having a depth equivalent to twice the diameter of a single fiber splice coupling and having a first constriction (74) along a top surface (72) of the channel, characterized in that channels (70) have a second constriction (76) along sides of the channel midway from the top surface and a bottom of the channel defining upper and lower channel portions (80,82).
7. A splice holder as set forth in claim 6 wherein said member (24) includes at least one second channel (90) defined into said top surface, each said second channel (90) having a depth and width equivalent to the diameter of a mass fusion splice coupling, for receipt thereinto and holding of a mass fusion splice coupling.
8. The splice holder as set forth in claims 6-7 wherein said resilient material is an elastomer.
9. The splice holder as set forth in claim 8 wherein said elastomeric material is a polypropylene based elastomer.
10. The splice holder as set forth in claim 7 wherein a strain relief portion (30) has a plurality of slots (32) into said top surface (34) aligned with said first and second channels for receiving thereinto said single fibers and said ribbon cables extending from said single-fiber splice couplings and said mass fusion splice couplings, respectively.
EP96916485A 1995-05-30 1996-05-15 Optical fiber splice holder and strain relief Withdrawn EP0871911A1 (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US453739 1995-05-30
US08/453,157 US5566268A (en) 1995-05-30 1995-05-30 Strain relieving holder for optical fiber cable
US453157 1995-05-30
US08/453,739 US5530786A (en) 1995-05-30 1995-05-30 Holding for optical fiber splice couplings
PCT/US1996/007081 WO1996038752A1 (en) 1995-05-30 1996-05-15 Optical fiber splice holder and strain relief

Publications (1)

Publication Number Publication Date
EP0871911A1 true EP0871911A1 (en) 1998-10-21

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96916485A Withdrawn EP0871911A1 (en) 1995-05-30 1996-05-15 Optical fiber splice holder and strain relief

Country Status (4)

Country Link
EP (1) EP0871911A1 (en)
JP (1) JPH11506219A (en)
CN (1) CN1185839A (en)
WO (1) WO1996038752A1 (en)

Families Citing this family (52)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2811816B1 (en) * 2000-07-13 2002-10-11 Cit Alcatel SUPPORT FOR FILAMENT ELEMENTS OF LOW DIAMETER AND BEAM OF FILIFORM ELEMENTS CONNECTED BETWEEN THESE SUPPORT
JP4132615B2 (en) * 2000-08-29 2008-08-13 株式会社昭電 Optical fiber fusion splicing tray
GB0123741D0 (en) 2001-10-03 2001-11-21 Qinetiq Ltd Mounting of optical components
GB0314570D0 (en) * 2003-06-23 2003-07-30 Tyco Electronics Raychem Nv Organiser for optical fibre cables
US20060067636A1 (en) * 2004-09-24 2006-03-30 3M Innovative Properties Company Connector and splice holder device
US7333709B2 (en) 2004-09-24 2008-02-19 3M Innovative Properties Company Splice holder device
US20060215980A1 (en) * 2005-03-24 2006-09-28 Yilmaz Bayazit Splice tray arrangement
US7274852B1 (en) 2005-12-02 2007-09-25 Adc Telecommunications, Inc. Splice tray arrangement
FR2917181B1 (en) * 2007-06-07 2015-03-27 Free SPLICE SUPPORT FOR OPTICAL FIBERS.
US8798427B2 (en) 2007-09-05 2014-08-05 Corning Cable Systems Llc Fiber optic terminal assembly
EP2080944A1 (en) * 2008-01-15 2009-07-22 Emtelle UK Limited Tube assembly for receiving optical fibre cables and retaining device for forming tube assemblies
US8452148B2 (en) 2008-08-29 2013-05-28 Corning Cable Systems Llc Independently translatable modules and fiber optic equipment trays in fiber optic equipment
US11294135B2 (en) 2008-08-29 2022-04-05 Corning Optical Communications LLC High density and bandwidth fiber optic apparatuses and related equipment and methods
CN102209921B (en) 2008-10-09 2015-11-25 康宁光缆系统有限公司 There is the fibre-optic terminus supported from the adapter panel of the input and output optical fiber of optical splitters
US8879882B2 (en) 2008-10-27 2014-11-04 Corning Cable Systems Llc Variably configurable and modular local convergence point
US9075216B2 (en) 2009-05-21 2015-07-07 Corning Cable Systems Llc Fiber optic housings configured to accommodate fiber optic modules/cassettes and fiber optic panels, and related components and methods
EP2443497B1 (en) 2009-06-19 2020-03-04 Corning Cable Systems LLC High density and bandwidth fiber optic apparatus
JP2011112785A (en) * 2009-11-25 2011-06-09 Sumitomo Electric Ind Ltd Optical fiber fusion splicing machine and fusion splicing method
US8593828B2 (en) 2010-02-04 2013-11-26 Corning Cable Systems Llc Communications equipment housings, assemblies, and related alignment features and methods
US9547144B2 (en) 2010-03-16 2017-01-17 Corning Optical Communications LLC Fiber optic distribution network for multiple dwelling units
US8913866B2 (en) 2010-03-26 2014-12-16 Corning Cable Systems Llc Movable adapter panel
JP2011203534A (en) * 2010-03-26 2011-10-13 Sumitomo Electric Ind Ltd Splicing reinforcement device and fusion splicing machine
EP2558895B1 (en) 2010-04-16 2019-04-17 Corning Optical Communications LLC Sealing and strain relief device for data cables
US9519118B2 (en) 2010-04-30 2016-12-13 Corning Optical Communications LLC Removable fiber management sections for fiber optic housings, and related components and methods
US8385711B2 (en) * 2010-04-30 2013-02-26 Corning Cable Systems Llc Multi-configurable splice holder
US9075217B2 (en) 2010-04-30 2015-07-07 Corning Cable Systems Llc Apparatuses and related components and methods for expanding capacity of fiber optic housings
CN103430072B (en) 2010-10-19 2018-08-10 康宁光缆系统有限责任公司 For the transformation box in the fiber distribution network of multitenant unit
US9279951B2 (en) 2010-10-27 2016-03-08 Corning Cable Systems Llc Fiber optic module for limited space applications having a partially sealed module sub-assembly
US9116324B2 (en) 2010-10-29 2015-08-25 Corning Cable Systems Llc Stacked fiber optic modules and fiber optic equipment configured to support stacked fiber optic modules
AU2011336747A1 (en) 2010-11-30 2013-06-20 Corning Cable Systems Llc Fiber device holder and strain relief device
WO2012106518A2 (en) 2011-02-02 2012-08-09 Corning Cable Systems Llc Optical backplane extension modules, and related assemblies suitable for establishing optical connections to information processing modules disposed in equipment racks
US9008485B2 (en) 2011-05-09 2015-04-14 Corning Cable Systems Llc Attachment mechanisms employed to attach a rear housing section to a fiber optic housing, and related assemblies and methods
WO2013003303A1 (en) 2011-06-30 2013-01-03 Corning Cable Systems Llc Fiber optic equipment assemblies employing non-u-width-sized housings and related methods
US8953924B2 (en) 2011-09-02 2015-02-10 Corning Cable Systems Llc Removable strain relief brackets for securing fiber optic cables and/or optical fibers to fiber optic equipment, and related assemblies and methods
KR20140099874A (en) * 2011-11-02 2014-08-13 나노프리시젼 프로덕츠 인코포레이션 Castellated optical fiber cable retention structure
US9038832B2 (en) 2011-11-30 2015-05-26 Corning Cable Systems Llc Adapter panel support assembly
US9219546B2 (en) 2011-12-12 2015-12-22 Corning Optical Communications LLC Extremely high frequency (EHF) distributed antenna systems, and related components and methods
US10110307B2 (en) 2012-03-02 2018-10-23 Corning Optical Communications LLC Optical network units (ONUs) for high bandwidth connectivity, and related components and methods
US9004778B2 (en) 2012-06-29 2015-04-14 Corning Cable Systems Llc Indexable optical fiber connectors and optical fiber connector arrays
US9250409B2 (en) 2012-07-02 2016-02-02 Corning Cable Systems Llc Fiber-optic-module trays and drawers for fiber-optic equipment
US9049500B2 (en) 2012-08-31 2015-06-02 Corning Cable Systems Llc Fiber optic terminals, systems, and methods for network service management
US9042702B2 (en) 2012-09-18 2015-05-26 Corning Cable Systems Llc Platforms and systems for fiber optic cable attachment
US8909019B2 (en) 2012-10-11 2014-12-09 Ccs Technology, Inc. System comprising a plurality of distribution devices and distribution device
EP2725397B1 (en) 2012-10-26 2015-07-29 CCS Technology, Inc. Fiber optic management unit and fiber optic distribution device
AU2013356348A1 (en) * 2012-12-07 2015-07-23 Corning Optical Communications LLC Fiber optic modules with splice holder and fiber management features
US8985862B2 (en) 2013-02-28 2015-03-24 Corning Cable Systems Llc High-density multi-fiber adapter housings
US10061089B2 (en) 2013-09-20 2018-08-28 Adva Optical Networking Se Fiber optic component holding device for fibers in side-by-side contact
US10345526B2 (en) * 2014-12-14 2019-07-09 Telescent Inc. High reliability robotic cross-connect systems
CN107037553A (en) * 2017-05-17 2017-08-11 国网山东省电力公司威海供电公司 A kind of rack cable jumping fiber containing case
WO2020180714A1 (en) * 2019-03-01 2020-09-10 Commscope Technologies Llc Splice tray for a telecommunications product
CN110045455A (en) * 2019-04-28 2019-07-23 南京聚科光电技术有限公司 A kind of optical fiber Bragg grating encapsulation device and method of wavelength controllable precise
US10976498B2 (en) 2019-06-14 2021-04-13 Cisco Technology, Inc. Tray and clip structure for optomechanical components

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627686A (en) * 1984-08-10 1986-12-09 Siecor Corporation Splicing tray for optical fibers
JPS63249116A (en) * 1987-04-03 1988-10-17 Nippon Telegr & Teleph Corp <Ntt> Connector for optical fiber
US4854661A (en) * 1987-11-05 1989-08-08 Gte Products Corporation Splice cradle
GB8826202D0 (en) * 1988-11-09 1988-12-14 Telephone Cables Ltd Clamping apparatus for array of filaments
CH681668A5 (en) * 1991-03-12 1993-04-30 Reichle & De Massari Fa
US5097529A (en) * 1991-03-22 1992-03-17 At&T Bell Laboratories Space-saving optical fiber cable closure
US5323480A (en) * 1992-11-25 1994-06-21 Raychem Corporation Fiber optic splice closure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9638752A1 *

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