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EP0868622A1 - Retracteur de cable - Google Patents

Retracteur de cable

Info

Publication number
EP0868622A1
EP0868622A1 EP96944904A EP96944904A EP0868622A1 EP 0868622 A1 EP0868622 A1 EP 0868622A1 EP 96944904 A EP96944904 A EP 96944904A EP 96944904 A EP96944904 A EP 96944904A EP 0868622 A1 EP0868622 A1 EP 0868622A1
Authority
EP
European Patent Office
Prior art keywords
cable
web
end plate
restrainer
retractor
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Withdrawn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
EP96944904A
Other languages
German (de)
English (en)
Inventor
Donald F. Willmann
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.)
Raytheon Co
Original Assignee
Raytheon E Systems 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 Raytheon E Systems Inc filed Critical Raytheon E Systems Inc
Publication of EP0868622A1 publication Critical patent/EP0868622A1/fr
Withdrawn legal-status Critical Current

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
    • H02G3/02—Details
    • H02G3/04—Protective tubing or conduits, e.g. cable ladders or cable troughs
    • H02G3/0462—Tubings, i.e. having a closed section
    • H02G3/0475—Tubings, i.e. having a closed section formed by a succession of articulated units
    • 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
    • G02B6/4459—Ducts; Conduits; Hollow tubes for air blown fibres
    • G02B6/4461—Articulated
    • 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
    • G02B6/50—Underground or underwater installation; Installation through tubing, conduits or ducts

Definitions

  • This invention relates to cable management and, more particularly, to an apparatus providing for a constant path length, preventing buckling for a fiber optic or electronic cable when the apparatus is folded from an extended position to a collapsed position.
  • the cable retractor of the present invention comprises a plurality of restrainer segments, typically of molded plastic, attached end-to-end by pivot pins, such that the entire cable retractor may be folded into a small space
  • a fiber optic cable is attached to the restrainer segments m a manner such that the total path length of the fiber optic cable does not substantially change as the retractor is unfolded to an extended position from a folded position
  • Each rigid restrainer segment includes a right end plate and a complementary left end plate connected by a web.
  • the end plates each have an interior side disposed toward the web and an exterior section disposed away from the web and a generally rectangular shape with a head end
  • the web has a longitudinal cross section with a straight section integral with an arcuate section
  • the web is disposed between the end plates with the arcuate section adjacent to the head section of each end plate.
  • the radius of curvature of the arcuate section is equal to or greater than the minimum permissible bend radius of a cable .
  • the cable rests longitudinally on the web and a plurality of openings in the web receive conventional cable ties to secure the cable to the web.
  • Restrainer segment ⁇ are interconnected head to tail by means of pivot pms .
  • FIGURE 1 is a perspective view illustrating a cable retractor m a collapsed position
  • FIGURE 2 is a perspective view of the cable retractor m an extended position
  • FIGURE 3 is a perspective view of a restrainer element of the cable retractor
  • FIGURE 4 is a front view of the restrainer
  • FIGURE 5 is a back view of the restrainer
  • FIGURE 6 is an end view illustrating a longitudinal cross section of the restrainer taken at section 6-6 m FIGURE 4 ;
  • FIGURE 7 is an end view of the restrainer illustrating an end plate of the restrainer
  • FIGURE 8 is a top view illustrating a lateral cross section of the restrainer taken at section 8-8 of FIGURE 4;
  • FIGURE 9 is a side view illustrating a longitudinal cross section of the cable retractor m a folded position taken at section 9-9 of FIGURE 3
  • FIGURE 10 is a side view illustrating a longitudinal cross section of the cable retractor in an expanded position taken at section 10-10 of FIGURE 2;
  • FIGURE 11 is a front view illustrating the rotation of a second restrainer segment with respect to a first restrainer segmen .
  • the fiber optic cable 100 is fixed to the restrainer segments 30 and strung around the restrainer segments 30 in such a manner that the total path length for the fiber optic cable 100 ("cable") is not changed as the retractor is folded and unfolded.
  • FIGURE 3 therein is shown a perspective view of a restrainer segment 30 having a right end plate 40 and a complimentary left end plate 50. Between the end plates 40 and 50 is a web 60.
  • FIGURES 3 and 7 illustrate the right end plate 40 as having a generally rectangular shape with a head end 42 and a tail end 44. An opening 48 is located in tail end 44 to receive a pivot pin, as will be explained.
  • the head end 42 has a generally rounded configuration having a radius of curvature greater than the minimum bend radius of a cable 100 attached to the retractor.
  • the right end plate 40 has an interior side disposed toward the web 60 and an exterior side disposed away from the web 60.
  • a pivot pin 46 is affixed to the exterior side of right end plate 40 at the head end 42.
  • the tail end 44 has a thicker cross section 49 to accommodate a recess 47 on the interior side.
  • the recess 47 is sized to receive the head section of an adjacent restrainer segment 30.
  • the complimentary left end plate 50 incorporates a head end 52 having a pivot pin 56 attached thereto, a tail end 54 having an opening 58 and a thicker cross section 59 with a recess 57.
  • Each part of the left end plate 50 is located in a position corresponding to those previously described for the corresponding part of right end plate 40.
  • the web 60 is disposed between end plates 40 and 50 and includes openings 90
  • the web 60 has a first web section 62 and a stepped down second web section 64.
  • web sections 62 and 64 have longitudinal cross sections shaped like a candy cane; i.e., having a lower straight portion and an arcuate upper portion.
  • the radius of curvature "R" of the arcuate portion is determined by the minimum bend radius of the cable 100.
  • the minimum bend radius of a cable is a function of the diameter of the cable and of the material from which the cable is formed. For fiber optic cable, a minimum bend radius less than 1 inch is not recommended.
  • the radius of curvature "R 61 " of the arcuate portion of web section 64 is slightly smaller than the radius of curvature "R 62 " for web section 62.
  • the difference in the radius of curvature provides a constant cable retractor mean bend radius allowing the retractor to function for cable of differing diameters.
  • the web 60 may have a continuous cross section with one radius of curvature or multiple cross sections, each with a different radius of curvature in order to allow concurrent use of the retractor for multiple cables of differing diameters.
  • FIGURES 9 and 10 wherein is illustrated a side cross section of a series of four interconnected restrainer segments 30 forming a cable retractor 10.
  • FIGURE 10 illustrates the cable retractor 10 in a expanded position
  • FIGURE 9 illustrates the cable retractor 10 in a folded position
  • Restrainer segments 30 are interconnected head to tail by means of the pivot pins 46 and 56.
  • pivot pins 46 and 56 located at the head end 42 and 52 of plates 40 and 50 respectively, of the first restrainer segment are inserted into openings 48 and 58 located in the tail end 44 and 54 of the second restrainer segment 30
  • the head of the second restrainer segment 30 is connected to the tail of the third segment and the head of the third segment is connected to the tail of the fourth segment all in a similar manner.
  • pivot pins 46 and 56 are molded integrally with end plates 40 and 50, however, alternatively, openings and conventional fasteners may be used as a method of connection
  • the cable 100 is fixed to the web 60 by the cable tie 92 and passes along the web around the curved portion of the web and onto the web of the second restrainer segment 30 and so on to the third and fourth restrainer segments.
  • the path length for the cable 100 does not expand or contract as the retractor 10 is lengthened or shortened.
  • the cable retractor 10 provides a rolling action similar to the action of the involute curve of a gear tooth This action is a smooth, continuous, rolling action with a minimum of slippage between the cable 100 and the cable retractor 10
  • the positional relationship of pivot point 80 and R 64 results m providing this action
  • Each restrainer segment 30 is connected to an adjacent, substantially identical restrainer segment 30 at pivot point 80.
  • Phantom lines illustrate the smooth continuous movement of adjacent restrainer segments 30.
  • Cable 100 is fixed to the restrainer segments 30 at fixed points 110 by conventional cable ties 92 passing through openings 90 (see FIGURE 4) .
  • the Greek letter THETA “ ⁇ ” used in Figure 11 represents the angular arc created as a restrainer segment 30 unfolds with respect to an adjacent restrainer segment 30.
  • the distance " 1 represents the length of cable 100 between the fixed point 110 on web 60 of a restrainer segment 30 and the tangent point ("T 1 ") where the cable touches the web 60 on an adjacent restrainer segment 30 when the retractor 10 is in a folded position.
  • the distance L 2 is the tangential ("T 2 ") length of the cable at angle ⁇ as the retractor is expanded.
  • cable retractor 100 is not expanded to a ⁇ angle over 120 degrees. Stop point 51 (shown in FIGURE 2 ⁇ prevents over expansion. When the cable retractor is fully retracted, ⁇ is 0, therefore

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Electric Cable Installation (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)

Abstract

Rétracteur de câble (10) comprenant des segments limiteurs (30) fixés bout à bout par des axes (46, 56) de sorte que toute la structure puisse se plier dans un petit espace. Un câble à fibres optiques (100) est fixé aux segments limiteurs (30) de façon à ce que la longueur totale de la voie du câble optique (100) ne se modifie pratiquement pas lorsque le rétracteur (10) est déplié pour prendre une position étendue.
EP96944904A 1995-12-21 1996-12-20 Retracteur de cable Withdrawn EP0868622A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US576342 1990-08-31
US57634295A 1995-12-21 1995-12-21
PCT/US1996/020349 WO1997022826A1 (fr) 1995-12-21 1996-12-20 Retracteur de cable

Publications (1)

Publication Number Publication Date
EP0868622A1 true EP0868622A1 (fr) 1998-10-07

Family

ID=24304044

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96944904A Withdrawn EP0868622A1 (fr) 1995-12-21 1996-12-20 Retracteur de cable

Country Status (4)

Country Link
EP (1) EP0868622A1 (fr)
JP (1) JP2000502557A (fr)
AU (1) AU1339597A (fr)
WO (1) WO1997022826A1 (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3947046B2 (ja) * 2002-06-07 2007-07-18 株式会社リコー ハーネスガイド及びそれを備えた画像形成装置
JP2004255829A (ja) * 2003-02-27 2004-09-16 Ricoh Co Ltd ハーネスガイドおよび画像形成装置
JP2007118678A (ja) * 2005-10-26 2007-05-17 Fujikura Ltd スライドドア給電装置及びフラットケーブルのケーブルガイド取付方法
DE202007006366U1 (de) * 2007-05-04 2007-07-12 Kabelschlepp Gmbh Zugentlastungseinheit, insbesondere für Kabel, Leitungen oder Schläuche
CN103022834A (zh) * 2011-09-27 2013-04-03 鸿富锦精密工业（深圳）有限公司 线缆整理装置
EP2962148A4 (fr) * 2013-02-27 2016-10-19 Adc Telecommunications Inc Module de connexion de fibre optique coulissant avec gestion de mou de câble
US10359733B2 (en) 2015-10-09 2019-07-23 Sharp Kabushiki Kaisha Support member connection mechanism and electrical apparatus including the same
KR102190049B1 (ko) * 2020-06-03 2020-12-11 (주)유원건축사사무소 공동주택 외벽 케이블 배선용 덕트

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2902535A (en) * 1956-10-29 1959-09-01 Gen Electric Prefolded cord and method of making same
US3284036A (en) * 1965-05-06 1966-11-08 Nat Crane Corp Carrier link chain assembly for hoses
US3459880A (en) * 1967-09-19 1969-08-05 Jack A Erdle Flexible bus bar
US3848361A (en) * 1973-09-14 1974-11-19 Von Duprin Inc Conductor transfer assembly
DE2360227C3 (de) * 1973-12-04 1981-08-20 Kabelschlepp Gmbh, 5900 Siegen Energieführungskette
US4614383A (en) * 1984-12-31 1986-09-30 General Dynamics, Electronics Division Cable carrier/retractor
DE3507200A1 (de) * 1985-03-01 1986-09-04 Kabelschlepp Gmbh, 5900 Siegen Energiefuehrungskette
IT208046Z2 (it) * 1986-09-15 1988-03-31 Tecno Mobili E Forniture Per A Organo passocavo flessibile a snodi bidirezionali.
US5093887A (en) * 1990-09-28 1992-03-03 Reliance Comm/Tec Corporation Sliding cable tray with cable pivot arm
JP2507194Y2 (ja) * 1991-07-31 1996-08-14 株式会社椿本チエイン ケ―ブルドラグチェ―ンの内部仕切構造
US5149017A (en) * 1991-11-15 1992-09-22 Teledyne Inet Service transport unit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9722826A1 *

Also Published As

Publication number Publication date
JP2000502557A (ja) 2000-02-29
AU1339597A (en) 1997-07-14
WO1997022826A1 (fr) 1997-06-26

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Effective date: 19980721

AK Designated contracting states

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Designated state(s): DE FR GB IT NL

RBV Designated contracting states (corrected)

Designated state(s): DE FR GB IT NL

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: RAYTHEON COMPANY

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 20060701