WO2021050316A1 - Isolateur pour monter des dispositifs de suspension de câble - Google Patents

Isolateur pour monter des dispositifs de suspension de câble Download PDF

Info

Publication number
WO2021050316A1
WO2021050316A1 PCT/US2020/048859 US2020048859W WO2021050316A1 WO 2021050316 A1 WO2021050316 A1 WO 2021050316A1 US 2020048859 W US2020048859 W US 2020048859W WO 2021050316 A1 WO2021050316 A1 WO 2021050316A1
Authority
WO
WIPO (PCT)
Prior art keywords
isolator
platform
cable
mounting
hole
Prior art date
Application number
PCT/US2020/048859
Other languages
English (en)
Inventor
Ronald A. Vaccaro
Joshi AVIRAL
Christopher STOCKMAN
Original Assignee
Commscope Technologies 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 US16/567,911 external-priority patent/US11493150B2/en
Application filed by Commscope Technologies Llc filed Critical Commscope Technologies Llc
Publication of WO2021050316A1 publication Critical patent/WO2021050316A1/fr

Links

Classifications

    • 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
    • H02G3/00—Installations of electric cables or lines or protective tubing therefor in or on buildings, equivalent structures or vehicles
    • H02G3/30—Installations of cables or lines on walls, floors or ceilings
    • H02G3/32—Installations of cables or lines on walls, floors or ceilings using mounting clamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2/00—Friction-grip releasable fastenings
    • F16B2/02—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening
    • F16B2/06—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action
    • F16B2/08—Clamps, i.e. with gripping action effected by positive means other than the inherent resistance to deformation of the material of the fastening external, i.e. with contracting action using bands
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B21/00—Means for preventing relative axial movement of a pin, spigot, shaft or the like and a member surrounding it; Stud-and-socket releasable fastenings
    • F16B21/06—Releasable fastening devices with snap-action
    • F16B21/08—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part
    • F16B21/086—Releasable fastening devices with snap-action in which the stud, pin, or spigot has a resilient part the shank of the stud, pin or spigot having elevations, ribs, fins or prongs intended for deformation or tilting predominantly in a direction perpendicular to the direction of insertion

Definitions

  • the present invention relates generally to devices for supporting cables and, in particular, to hangers for securing cables to support structures.
  • Cable hangers are commonly used to secure cables to structural members of antenna towers and/or along tunnel walls. Generally, each cable is attached to a structural member by cable hangers mounted at periodically-spaced attachment points.
  • Antenna towers and/or tunnels may be crowded due to the large numbers of cables required for signal-carrying. Over time, as systems are added, upgraded and/or expanded, installation of additional cables may be required. To conserve space, it may be desirable for each set of cable hangers to secure more than a single cable. Certain cable hangers have been constructed to secure multiple cables; other cable hangers have a stackable construction that permits multiple cable hangers to be interlocked extending outwardly from each mounting point/structural member. Stacked and multiple-cable-type cable hangers significantly increase the number of cables mountable to a single attachment point.
  • Hangers disclosed therein have generally a U- or C-shaped profile with rounded arms.
  • a locking projection extends from the free end of each arm, and the “root” of the hanger that spans the fixed ends of the arms has a large aperture.
  • the hanger can hold a cable between the arms; gripping of the cable is enhanced by short fingers that extend inwardly from the arms to engage the cable.
  • the locking projections of a hanger are inserted into a hole in the antenna tower (typically in the leg of the antenna tower) to secure the hanger to the tower.
  • Hangers can be “stacked” onto each other by inserting the locking projections of one hanger into the large aperture of the next hanger.
  • One variety of cable hanger of this type is the SNAP-STAK® hanger, available from CommScope, Inc. (Joliet, Illinois).
  • Other cable hangers are shown in U.S. Patent Nos. 9,866,004, issued January 4, 2018, 9,853,434, issued December 26, 2017, and 9,903,510, issued February 27,
  • an adapter such as that shown at 10 in FIG. 1.
  • the adapter 10 has a trapezoidal profile, with a base panel 12 and three serially- attached mounting panels 14.
  • Each of the mounting panels 14 includes a mounting hole 16 (typically a nominal 3 ⁇ 4 inch hole) that can receive a cable hanger such as those described above, one of which is designated 20 in FIG. 2.
  • the base panel 12 of the adapter 10 has a hole 18 that can be used to mount the adapter 10 to a mounting structure via a bolt.
  • the base panel 12 also includes slots 22 on either side of the hole 18 that can receive a hose clamp 26 or the like to mount the adapter 10 to a pole 24, as shown in FIG. 3. This mounting approach may be desirable when the pole 24 has no pre-formed holes to receive a typical cable hanger.
  • Areas near cellular antennas can be (relatively) high radio frequency (RF) energy environments.
  • Conductive items in these areas can generate undesirable passive intermodulation (PIM).
  • PIM passive intermodulation
  • Typical examples of potential PIM-generating conditions include the combination of steel-on-steel contact (between two or more components), plus low contact pressure and/or relative movement between the steel components at the joint. As such, it may be desirable to provide solutions for hanging cables with reduced (or eliminated) likelihood of PIM generation.
  • inventions of the invention are directed to an isolator for mounting cable hangers.
  • the isolator comprises a platform having a circular hole, two extenders extending away from the bottom surface of the platform, and two locking clips, wherein each locking clip extends from an extender in a direction that is away from the bottom surface of the platform.
  • embodiments of the invention are directed to an assembly comprising a mounting structure and first and second adapters as described above.
  • embodiments of the invention are directed to an isolator for mounting cable hangers comprising: a platform having a circular hole, two extenders extending away from the bottom surface of the platform, and two locking clips, wherein each locking clip extends from an extender in a direction that is away from the bottom surface of the platform; and wherein the isolator is formed of a polymeric material.
  • FIG. 1 is a perspective view of a prior art adapter for cable hangers.
  • FIG. 2 is a top view of the adapter of FIG. 1 with a cable hanger mounted therein.
  • FIG. 3 is a perspective view of the adapter of FIG. 1 mounted to a pole via a hose clamp.
  • FIG. 4 is a front perspective view of an adapter for cable hangers according to embodiments of the invention.
  • FIG. 5 is a rear perspective view of the adapter of FIG. 4.
  • FIG. 6 is a perspective section view of the adapter of FIG. 4.
  • FIG. 7 is a side view of the adapter of FIG. 4 mounted to a mounting structure via two hose clamps.
  • FIG. 8 is a schematic top view of three adapters of FIG. 4 mounted to a mounting structure with a common hose clamp.
  • FIG. 9 is a perspective view of an isolator.
  • FIG. 10 is an elevation view of the isolator of FIG. 9.
  • FIG. 11 is an elevation view of an extender and locking clip of the isolator of FIG. 9.
  • FIG. 12 is an elevation view of the isolator of FIG. 9 with a cable hanger mounted therein.
  • FIG. 13 is an elevation view of the isolator of FIG. 9 with a cable hanger mounted therein, wherein another isolator is mounted on the cable hanger.
  • FIG. 14 is a bottom perspective view of the isolator of FIG. 9.
  • the adapter 100 includes a floor 102, a ceiling 104 opposite the floor 102, and two side walls 106 that span the floor and the ceiling 104. As can be seen in FIG. 5, the floor 102 is narrower in width than the ceiling 104, such that each of the side walls 106 defines a trapezoidal or “wedge” shape.
  • the ceiling 104 includes a central hole 110; in some embodiments, the hole 110 is nominally 3 ⁇ 4 inch in diameter, and thus is sized for the insertion of cables hangers such as that shown at 20 in FIG. 2.
  • Parallel reinforcing ribs 112 are also present on the ceiling 104.
  • the adapter 100 also includes a cross-member 114 that extends between the side walls 106 near the floor 102.
  • a divider 116 extends between the cross-member 114 and the floor 102.
  • the floor 102, cross-member 114 and divider 116 create two windows 118.
  • the adapter 100 is formed of a polymeric material, such as acetal, polyethylene, polypropylene, PVC, or the like.
  • the adapter 100 may be formed by injection molding.
  • the positioning of the feet 108a-d and the orientation of the ribs 112 and the windows 118 can enable the injection molding of the adapter 100 with a simple reciprocating mold that requires no “side-action” mechanism.
  • the windows 118 serve as receptacles for hose clamps 120 or other fastening devices, such as other radial clamping devices like straps, cable ties, and twist ties, clips and the like.
  • the two hose clamps 120 shown in FIG. 7 are routed through respective windows 118 and around a mounting structure, such as a post 122 of an antenna mount, a monopole, or the like.
  • the feet 108a-d contact the surface of the mounting structure 122 to provide a more stable foundation for the adapter 100.
  • the adapter 100 is positioned to serve as a mounting point (via the central hole 110) for a cable hanger, such as that shown in FIG. 2.
  • Adapters 100 formed of a polymeric material can be used to mount a metallic cable hanger without creating a potential site of undesirable PIM.
  • the polymeric cables hangers such as those described in U.S. Patent No. 10,253,906, issued April 9, 2019 (incorporated by reference in full herein), may also be employed.
  • multiple adapters 100 can be mounted at the same elevation with a single hose clamp 120 (or pair of hose clamps 120). Each of the hose clamps 120 is simply routed through one of the windows 118 of each adapter 100 and secured around the mounting structure 122.
  • the trapezoidal profile of the adapter 100 can help to increase of maximize the number of adapters 100 placed side-by-side around the mounting structure 100.
  • the adapter 100 may be configured such that the side walls 106 may include holes for mounting a cable hanger. Further, in some embodiments, the “open” sides of the adapter 100 may be at least partially closed with side walls, which side walls may include holes for mounting additional cable hangers.
  • the isolator 900 includes a platform 902, two extenders 904, two inner flanges 906, and two locking clips 908, wherein each inner flange 906 extends generally orthogonally from a corresponding extender 904 in a direction toward the other inner flange 906, and wherein each locking clip 908 extends from a corresponding inner flange 906 in a direction that is away from the bottom surface of the platform 902.
  • FIGS. 9-14 an isolator for mounting cable hangers, designated broadly as 900.
  • the isolator 900 includes a platform 902, two extenders 904, two inner flanges 906, and two locking clips 908, wherein each inner flange 906 extends generally orthogonally from a corresponding extender 904 in a direction toward the other inner flange 906, and wherein each locking clip 908 extends from a corresponding inner flange 906 in a direction that is away from the bottom surface of the platform 902.
  • each extender 904 extends away from the bottom surface of the platform 902, the extenders 904 are positioned generally parallel to each other, and each extender 904 is positioned at a location which is between the center of the platform 902 and a corresponding outer edge of the platform 902.
  • the width of each extender 904 may span a portion of the platform 902 that is narrower than the width of the platform 902, or, in an alternative embodiment, the width of each extender 904 may span the entirety of the width of the platform 902.
  • each inner flange 906 extend toward each other without touching each other, thereby creating a gap between the inner surfaces of the inner flanges 906.
  • Each inner flange 906 may comprise a base section 910 and a wing section 912, wherein the wing section 912 is wider than the base section 910, thereby creating multiple surfaces at which a force may be applied to move the leading surfaces of the inner flanges 906 toward each other to ease removal.
  • Each outer edge of each wing section 912 may be rounded. Also, the wing section 912 can provide increased stability.
  • the platform 902 includes a central hole 914; in some embodiments, the hole 914 is circular and nominally 3 ⁇ 4 inch in diameter, and thus is sized for the insertion of cables hangers such as that shown at 20 in FIG. 12.
  • Parallel reinforcing ribs 916 are also present on the top surface of the platform 902.
  • the ribs 916 may run in a direction that is perpendicular to the extenders 904.
  • the top surface of the platform 902 may be flat and may not include the parallel reinforcing ribs 916.
  • two gussets 918 may extend from the outer surface of each extender 904 to the bottom surface of the platform 902, thereby providing support for the platform 902.
  • each extender 904 may include an outer flange 920 positioned on the outer surface of the extender 904.
  • the outer flange 920 may provide additional stability for the isolator 900 when the isolator 900 is attached to a mounting surface.
  • the outer flange 920 may provide a surface for a tool (such a pair of pliers or a proprietary/specialized removal tool) for the exertion of force in a concentrated manner, which can facilitate removal/installation.
  • FIG. 9 shows the isolator 900 comprising two extenders 904, two inner flanges 906, two locking clips 908, two outer flanges 920, and four gussets 918
  • the isolator 900 may include more or less of each of these components than shown in FIG. 9
  • each locking clip 908 may include a base section 1102 and a hook section 1104.
  • the base section 1102 may extend for a length that is equivalent to or slightly greater than a thickness of a surface to which the isolator 900 may be mounted (e.g., the platform 902 of another isolator 900 or other mounting surface such as the mounting panels 14 of the adapter 10, or the ceiling 104 of the adapter 100, or a post of an antenna mount).
  • the outer surface of the base section 1102 may be rounded and may have a radius that is equivalent to or slightly less than a radius of an aperture within which the locking clip 908 may be inserted (e.g., hole 914 of another isolator 900 or an aperture of another mounting surface such as the mounting holes 16 of the adapter 10, or the hole 110 of the adapter 100).
  • the hook section 1104 may narrow from a barb surface 1106 to a leading edge of the hook section 1104.
  • the barb surface 1106 may be flat (i.e., the barb surface 1106 may be parallel with the plane of the bottom surface of the platform 902), while the outer surface of the hook section 1104 may be rounded having a radius that decreases from the barb surface 1106 to the leading edge of the hook section 1104.
  • the outer surface radius of the hook section 1104 at the barb surface 1106 may be greater than the outer surface radius of the base section 1102.
  • the outer surface of the base section 1102 of the locking clip 908 may have a cut-out 1108 above the barb surface 1106 of the hook section 1104.
  • the outer surface of the hook section 1104 may have a cut-out 1110.
  • the base section 1102 may not include the cut-out 1108, and/or the hook section 1104 may not include the cut-out 1110.
  • the hook section 1104 of the locking clip 908 may have a cut out 1112 on the flat surface (i.e., the inner surface) of the hook section 1104, thereby increasing flexibility of the locking clip 908.
  • the hook section 1104 may not include the cut-out 1112.
  • a cable hanger 20 may be attached to the top surface of the platform 902 by inserting one or more clip mechanisms of the hanger 20 through the hole
  • an isolator 900 may be attached to a cable hanger 20 by inserting the locking clips 908 through an opening on the top surface of the cable hanger 20.
  • the cable hanger 20 may be a metal cable hanger.
  • an isolator 900 may be mounted to a metal mounting surface (e.g., a metal pole 1302), and a metal cable hanger 20 may be mounted to the isolator 900.
  • a plurality of isolators 900 may be mounted to each other, thereby extending the distance between a mounting surface (e.g., metal pole 1302) and a cable hanger 20 that is mounted to one of the isolators 900.
  • the isolator 900 may include an additional support gusset 1402 that is positioned perpendicular to the gussets 918.
  • the support gusset 1402 may extend from just above the outer flange 920 to the bottom surface of the platform 902.
  • the side edges of the outer flange 920 may be filleted, thereby providing a surface upon which a force may be applied to rotate the isolator 900 when the isolator 900 is attached to a mounting surface.
  • the isolator 900 is formed of a polymeric material, such as acetal, polyethylene, polypropylene, PVC, or the like.
  • the isolator 900 may be formed by injection molding.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Installation Of Indoor Wiring (AREA)

Abstract

L'invention concerne un isolateur pour monter des dispositifs de suspension de câble, comprenant : une plate-forme ayant un trou; deux extenseurs s'étendant à l'opposé de la surface inférieure de la plate-forme ; et deux pinces de verrouillage, chaque pince de verrouillage s'étendant à partir d'un prolongateur dans une direction qui est éloignée de la surface inférieure de la plate-forme.
PCT/US2020/048859 2019-09-11 2020-09-01 Isolateur pour monter des dispositifs de suspension de câble WO2021050316A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US16/567,911 US11493150B2 (en) 2018-06-19 2019-09-11 Isolator for mounting cable hangers
US16/567,911 2019-09-11

Publications (1)

Publication Number Publication Date
WO2021050316A1 true WO2021050316A1 (fr) 2021-03-18

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PCT/US2020/048859 WO2021050316A1 (fr) 2019-09-11 2020-09-01 Isolateur pour monter des dispositifs de suspension de câble

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD964151S1 (en) 2022-04-03 2022-09-20 Concealfab, Inc. Cable tie anchor
US11708918B1 (en) 2022-03-22 2023-07-25 Concealfab, Inc. Grip enhancing low-PIM cable tie anchor

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6257530B1 (en) * 1999-12-20 2001-07-10 Chin Hai Tsai Clasping device for longitudinal object
US20060249633A1 (en) * 2001-11-09 2006-11-09 Rick Korczak Anchor rail adapter and hanger and method
US20090230256A1 (en) * 2008-03-12 2009-09-17 Widlacki Felix G Adapter for stacking cable hangers
WO2010143222A1 (fr) * 2009-08-12 2010-12-16 Fi.Mo.Tec. S.P.A. Collier de support pour articles longs, en particulier câbles, tuyaux et/ou analogues
KR101802395B1 (ko) * 2016-05-18 2017-11-28 주식회사 에이티앤에스 안테나용 케이블 홀더 및 안테나용 케이블 홀더를 포함하는 안테나
US20200003338A1 (en) * 2018-06-19 2020-01-02 Commscope Technologies Llc Isolator for mounting cable hangers

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6257530B1 (en) * 1999-12-20 2001-07-10 Chin Hai Tsai Clasping device for longitudinal object
US20060249633A1 (en) * 2001-11-09 2006-11-09 Rick Korczak Anchor rail adapter and hanger and method
US20090230256A1 (en) * 2008-03-12 2009-09-17 Widlacki Felix G Adapter for stacking cable hangers
WO2010143222A1 (fr) * 2009-08-12 2010-12-16 Fi.Mo.Tec. S.P.A. Collier de support pour articles longs, en particulier câbles, tuyaux et/ou analogues
KR101802395B1 (ko) * 2016-05-18 2017-11-28 주식회사 에이티앤에스 안테나용 케이블 홀더 및 안테나용 케이블 홀더를 포함하는 안테나
US20200003338A1 (en) * 2018-06-19 2020-01-02 Commscope Technologies Llc Isolator for mounting cable hangers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11708918B1 (en) 2022-03-22 2023-07-25 Concealfab, Inc. Grip enhancing low-PIM cable tie anchor
USD964151S1 (en) 2022-04-03 2022-09-20 Concealfab, Inc. Cable tie anchor

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