EP0179648A1 - Aufbau eines elektrischen Flachkabels - Google Patents

Aufbau eines elektrischen Flachkabels Download PDF

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Publication number
EP0179648A1
EP0179648A1 EP85307606A EP85307606A EP0179648A1 EP 0179648 A1 EP0179648 A1 EP 0179648A1 EP 85307606 A EP85307606 A EP 85307606A EP 85307606 A EP85307606 A EP 85307606A EP 0179648 A1 EP0179648 A1 EP 0179648A1
Authority
EP
European Patent Office
Prior art keywords
cable structure
leads
electro
flat cable
conductive flat
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Withdrawn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
EP85307606A
Other languages
English (en)
French (fr)
Inventor
Marcelo Luis Dodero
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0179648A1 publication Critical patent/EP0179648A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/08—Flat or ribbon cables
    • H01B7/0823—Parallel wires, incorporated in a flat insulating profile
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
    • H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables

Definitions

  • This invention relates to an electroconductive flat cable structure which may be used, inter alia, in a vertical transportation system.
  • a cable structure may be employed in the power supply intended for the operation of elevators, freight elevators or the like, and also for the lighting, ventilation, etc.
  • electro-conductive flat cable structures having steel cables acting as carrying members located along both sides of the structures.
  • Such cable structures can connect elevators, freight elevators or crane-bridge receptacles with the general supply network.
  • Such cable structures are permanently subjected to variable flexural stress and, to a minor degree, variable tensile stress.
  • the stress depends upon the position of the cabin in the up/down direction and the position of the cabin relative to the end of the cable structure remote from the cabin.
  • said situation causes, in said known cable structure, the twisting thereof with respect to its own geometric longitudinal axis.
  • said twisting causes the cable structure to shorten and collide with the elevator cabin, often rubbing against it, which often results in the flat cable structure being broken or torn, primarily because of the lack of space which usually exists between the cabin and the sides of the shaft wherein the elevator moves.
  • Another negative aspect derived from said distribution of the carrying cables along the sides of the flat cable structure is that, because of the above mentioned twisting, the cable structure is prematurely overstressed and eventually failure occurs. Even if the failure is only partial, it causes the subsequent disabling of the whole cable structure bearing in mind that the leads are intended to channel the power serving different parts of the elevator, such as the operating keys, the alarm, lights, ventilation etc.
  • This greater width of the cable structure presents the disadvantage of facilitating the twisting thereof because of the reasons above mentioned and, what is worse, it also creats a greater surface resistance to the air generated by the cabin displacement, thereby increasing the space occupied by the cable structure. All these factors increase the tendency from the cable structure to approach the cabin or collide therewith, thus accelerating the destructive process by action of the mechanical friction.
  • an electro-conductive flat cable structure said cable structure being of elongate configuration and comprising a sheath forming the lining sleeving of a plurality of longitudinally extending individual leads which are formed into sets separated from each other, characterised in that the cable structure further comprises at least one longitudinally extending flexible member which is mechanically resistant to tensile stress and which acts as the core of the cable structure, said at least one flexible member being located at an intermediate position in relation to said plurality of individual leads so as to be flanked on each side by said leads together with their associated lining sleeving.
  • said at - least one flexible member and the individual leads are co-planar thereby permitting a certain degree of cross-bending of the individual leads.
  • the cable structure can be connected directly between the machinery hall and the cabin of an elevator thereby avoiding the use of travel boxes and the resulting high cost of providing such boxes.
  • the sets of leads are aligned with said at least one flexible member, all of them adopt the same bending radius, thereby avoiding partial rupture of any of them and, as a consequence, the lifetime of the cable structure is considerably extended.
  • said at least one flexible member is flanked on each side by two sets of leads, the leads of each set being disposed at two different levels with respect to each other relative to the thickness of the cable structure.
  • the width of the cable structure may be reduced thereby avoiding the torsional effects associated with a wide cable structure.
  • the leads of each set may be disposed in two columns or in three columns, or in a zig-zag formation, or in a group around an imaginary axis.
  • the leads of each set may also be diposed in a group comprising a central lead surrounded by the remaining leads of the group, thete existing gaps between said remaining leads.
  • the provision of gaps improves the flexibility of the cable structure and facilitates virtual movement thereof.
  • Said at least one flexible member may be constituted by a cable which coincides with the longitudinal geometrical axis of the cable structure.
  • the provision of a single cable which acts as the core of the cable structure and which is resistant to mechanical stress makes it possible to use longer cable structures.
  • the single cable bears the stress arising both from its own weight and also from the weight of the other part of the cable structure.
  • said at least one flexible member and said sets of individual leads are disposed in a longitudinally extending mass of isolating material which forms said sheath, said mass of isolating material having longitudinally extending grooves which define a series of co-planar units joined to each other by material of reduced cross-sectional width, each of said co-planar units containing either a respective one of said sets of leads or said at least one flexible member.
  • the sheath formed in this way provides the advantage that it does not permit the cable structure to flicker.
  • said isolating material comprises an incombustible plastics material.
  • incombustible plastics material is used. The use of such material makes the cable structure safe in the event of short circuits, sparks, or other factors leading to spotaneous combustion.
  • the electro-conductive flat cable structure set out above is suitable for use in any type of vertical transportion system such as high and low speed elevators, freight elevators, crane-bridges etc.
  • the cable structure a comprises four sets of leads 1 which, together with their individual isolating sheaths, form four cables b.
  • the four cables b flank a central zone c in which there is a flexible member in the form of a steel cable 2.
  • the steel cable 2 is the sole element which is mechanically resistant to tensile stress and acts as the core of the cable structure.
  • both the leads 1, and the cable 2 extend longitudinally along the cable structure a.
  • Both the steel cable 2 and the cables b formed from the sets of leads 1 together with their individual isolating sheaths are held in a sheath formed from a mass of isolating material and which acts as a lining sleeving.
  • the isolating material is an incombustible plastics material.
  • the isolating material forms co-planar units 3 and 3' which are separated from each other by grooves 4. The grooves 4 reduce the width of the cable structure a and increases its flexibility.
  • the stress resistant steel cable 2 coincides with the longitudinal geometrical axis of the cable structure a and is symmetrically flanked by the sets of leads 1 together with their individual isolating sheaths.
  • the set of leads 1 also extend longitudinally along the cable structure a.
  • the leads 1 maybe co-planar with each other and with the cable 2 so as to form a single column.
  • the leads 1 in each set may be positioned at at least two different levels with respect to the thickness of cable structure a. This latter arrangement is the more interesting one because it makes it possible to accommodate more leads in the cable structure without increasing its width or to reduce the width of the cable structure without reducing the number of leads. This avoids the problems indicated above.
  • the sets of leads 1 are arranged in at least two different levels.
  • the leads 1 of each set are arranged in a zig-zag formation
  • the leads 1 of each set are arranged in two columns or layers
  • the leads 1 of each set are arranged in three layers or columns.
  • the leads 1 in each set there are four leads 1 positioned around an imaginary central axis bearing no lead.
  • the leads 1 form sets disposed in wobbling form.
  • the leads 1 are arranged in a group comprising a central lead surrounded by the remaining leads, there existing gaps between said remaining leads.
  • the width of the cable structure a is reduced and its thickness is increased. This reduces the surface area which provides resistance to wind and, consequently, flickering during movement of an elevator to which the cable strucutre is attached. It also reduced the cross-sectional area of the isolating material.
  • the cable 2 may be connected to ground by means of copper sleeving which acts as a jacket or sheath for the cable 2 and improves electrical conduction.
  • one of the leads 1 may laid bare and connected to the ground.
  • the cable structure a may be extended in a length located in an elevator shaft. Low voltage currents (9 - 12 volts) for the electronic system of the elevator and high voltage currents (220 - 380 volts) for the elevator lighting, alarm ventillation system, door opening system, etc and may flow through such cable structures.
  • Cable structures carrying high voltage currents may induce in low voltage cable structure currents of a magnitude similar to the current carried by the low voltage cable structures. This may cause equipment failure.
  • the two cable structures can conveniently be separated from each other by a distance ranging from 20 to 30 cm.

Landscapes

  • Insulated Conductors (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP85307606A 1984-10-23 1985-10-22 Aufbau eines elektrischen Flachkabels Withdrawn EP0179648A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AR29835084 1984-10-23
AR298350 1984-10-23

Publications (1)

Publication Number Publication Date
EP0179648A1 true EP0179648A1 (de) 1986-04-30

Family

ID=3478278

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85307606A Withdrawn EP0179648A1 (de) 1984-10-23 1985-10-22 Aufbau eines elektrischen Flachkabels

Country Status (1)

Country Link
EP (1) EP0179648A1 (de)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211015A (en) * 1987-10-09 1989-06-21 Junkosha Co Ltd Cables
US6364063B1 (en) * 1996-12-30 2002-04-02 Kone Corporation Elevator rope arrangement
US6837340B2 (en) * 2000-10-20 2005-01-04 Datwyler Ag Compensation weights and elevator systems
DE102007051462A1 (de) * 2007-10-27 2009-04-30 Leoni Bordnetz-Systeme Gmbh Mehradrige Signalleitung sowie Kontaktelement für eine solche Signalleitung
CN104485165A (zh) * 2014-12-22 2015-04-01 上海万普线缆有限公司 一种电梯用电缆及其制造方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1004253B (de) * 1952-10-13 1957-03-14 Robert Hoehn Dipl Ing Mehradrige bewegliche Flachleitung
US3676576A (en) * 1969-07-07 1972-07-11 Aerospatiale Multiconductor stranded remote-control cable
DE7838127U1 (de) * 1978-12-21 1979-05-10 Siemens Ag, 1000 Berlin Und 8000 Muenchen Flache Aufzugsteuerleitung mit Tragorgan
US4227041A (en) * 1978-05-23 1980-10-07 Fujikura Cable Works, Ltd. Flat type feeder cable
US4467138A (en) * 1983-01-17 1984-08-21 Gk Technologies, Inc. Plural conductor communication wire

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1004253B (de) * 1952-10-13 1957-03-14 Robert Hoehn Dipl Ing Mehradrige bewegliche Flachleitung
US3676576A (en) * 1969-07-07 1972-07-11 Aerospatiale Multiconductor stranded remote-control cable
US4227041A (en) * 1978-05-23 1980-10-07 Fujikura Cable Works, Ltd. Flat type feeder cable
DE7838127U1 (de) * 1978-12-21 1979-05-10 Siemens Ag, 1000 Berlin Und 8000 Muenchen Flache Aufzugsteuerleitung mit Tragorgan
US4467138A (en) * 1983-01-17 1984-08-21 Gk Technologies, Inc. Plural conductor communication wire

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2211015A (en) * 1987-10-09 1989-06-21 Junkosha Co Ltd Cables
US6364063B1 (en) * 1996-12-30 2002-04-02 Kone Corporation Elevator rope arrangement
US6868661B2 (en) 1996-12-30 2005-03-22 Kone Corporation Elevator rope arrangement
US6837340B2 (en) * 2000-10-20 2005-01-04 Datwyler Ag Compensation weights and elevator systems
DE102007051462A1 (de) * 2007-10-27 2009-04-30 Leoni Bordnetz-Systeme Gmbh Mehradrige Signalleitung sowie Kontaktelement für eine solche Signalleitung
CN104485165A (zh) * 2014-12-22 2015-04-01 上海万普线缆有限公司 一种电梯用电缆及其制造方法

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