EP0184954A1 - Parasitfreier Draht - Google Patents

Parasitfreier Draht Download PDF

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Publication number
EP0184954A1
EP0184954A1 EP85402187A EP85402187A EP0184954A1 EP 0184954 A1 EP0184954 A1 EP 0184954A1 EP 85402187 A EP85402187 A EP 85402187A EP 85402187 A EP85402187 A EP 85402187A EP 0184954 A1 EP0184954 A1 EP 0184954A1
Authority
EP
European Patent Office
Prior art keywords
ribbon
cable
wire
insulation
ignition
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Withdrawn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
EP85402187A
Other languages
English (en)
French (fr)
Inventor
Henri Barilleau
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.)
A Gregoire & L Barilleau Ets
A GREGOIRE AND BARILLEAU ETS
Original Assignee
A Gregoire & L Barilleau Ets
A GREGOIRE AND BARILLEAU ETS
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 A Gregoire & L Barilleau Ets, A GREGOIRE AND BARILLEAU ETS filed Critical A Gregoire & L Barilleau Ets
Publication of EP0184954A1 publication Critical patent/EP0184954A1/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Withdrawn legal-status Critical Current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
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • 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
    • H01B7/0063—Ignition cables

Definitions

  • the present invention relates to the manufacture of anti-parasite wires for the ignition of internal combustion engines of cars, boats and others.
  • the conductive wires are not aligned in the axis of the cable, but generally arranged helically around an absorbent core. For this reason, the tensile strength of the conductor cannot be used to participate in the tensile strength of the cable (so-called anti-interference "wire").
  • an anti-parasitic ignition wire comprises, from the center outwards: a rod made of radio-absorbent and insulating material extruded on a wire guiding; a conductor wound in a spiral around this tube; an insulating layer, extruded around the conductor, optionally with the interposition of an insulating absorbent layer on the conductor; braided braid on the insulation; then an external insulator.
  • the object of the present invention is in particular to obtain a better connection between the terminal and the ignition wire on which it is crimped, and this, for the usual operating temperatures, of the order of 120 ° C. and beyond.
  • the process used up to now consists of sheathing in two passes and incorporating between the two layers of insulation, in general, an elastomer (EPDM, hypalon or silicone) a braid, or covering, in polyester.
  • EPDM elastomer
  • the disadvantage of this process is that the braiding operation is very slow (around 50 m per hour) and therefore expensive, due to the masses of the moving parts and the kinematics of the movements on the machines. obtained for the lifting force are generally only a small margin higher than the minimum value required (6 to 7 daN depending on the case).
  • the braiding operation is replaced by the long, continuous laying of a woven ribbon, which a simple tool allows to perform at the same time as the second sheathing pass, therefore in masked time.
  • FIG. 1 represents an elevation view of the end, progressively stripped in stages, of a wire anti-parasitic ignition according to the invention.
  • Figures 2a and 2b are plan views showing samples of ribbons usable in the method of the present invention.
  • a typical cable according to the present invention is constituted as shown in FIG. 1. It comprises a central thread 1 made of any fabric, the function of which is to allow, or facilitate the extrusion and handling of the rod 2, which is generally now formed of a ferrite-loaded resin or elastomer. On the flange is wound in a tight pitch helix a conductive wire 3, resistant or not depending on the applications. An insulating sheath 4 is extruded from above. It is obvious that if there was nothing else, this ignition wire would have no mechanical resistance, and in particular, the junction with the terminal would be too fragile. This is why generally a braid is formed around this first insulating layer, then a second insulating layer 6 is extruded on the braid.
  • the braiding operation is very slow. It is known that a double ring of coils rotates around the cable in manufacture, the coils of one ring having to pass alternately inside and outside of the coils of the other ring.
  • the advance is about 50 meters an hour. It is this speed that conditions the entire production chain.
  • a woven tape 5 is laid long and continuously.
  • a simple tool allows this operation to be carried out at the same time as the second sheathing pass, therefore in macked time.
  • the operation is comparable to that of laying a strip in the manufacture of a coaxial cable and does not bring any slowdown, since it can be executed more quickly than any of the other operations of extrusion or conductor winding.
  • the ribbon is woven in advance, instead of the braid being made on site.
  • the width of the tape can be chosen so that the two edges 5 ′, 5 "of the tape are juxtaposed edge to edge or almost, once the tape is placed on the underlying insulating sheath, but a slight overlap is preferable.
  • the adhesion of the layer 6 to the layer 4, through the meshes of the ribbon 5, ensures the tubular junction of this ribbon, which thus has a tensile strength in the circular direction over its entire periphery.
  • the transmission of the resistant force in the circular direction is made, in the area of the longitudinal junction, by means of the insulator, in the same way as in reinforced concrete, the transmission of a force of iron to an independent adjacent iron can be obtained by coating concrete over a certain length. This ensures the cohesion of the active part of the ignition cable, and prevents cracking of the absorbent mixture during folding or the vibrations to which the cable is subjected on a running engine.
  • covered cables In application areas other than the ignition of internal combustion engines, covered cables have already been used. If the purpose of covering is the tensile strength, or the solidity of a connection to a terminal or any connector, the present invention advantageously applies in the same way.
  • the method according to the invention brings a double advantage: economy of manufacture, improvement of the product. This eloquently expresses that this process was not obvious since for several decades, the ignition wires were made with a braid without any thought of laying a ribbon.

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  • Insulated Conductors (AREA)
EP85402187A 1984-11-13 1985-11-13 Parasitfreier Draht Withdrawn EP0184954A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8417310A FR2573241B1 (fr) 1984-11-13 1984-11-13 Nouveau fil antiparasite
FR8417310 1984-11-13

Publications (1)

Publication Number Publication Date
EP0184954A1 true EP0184954A1 (de) 1986-06-18

Family

ID=9309553

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85402187A Withdrawn EP0184954A1 (de) 1984-11-13 1985-11-13 Parasitfreier Draht

Country Status (2)

Country Link
EP (1) EP0184954A1 (de)
FR (1) FR2573241B1 (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800359A (en) * 1987-12-24 1989-01-24 Yazaki Corporation Winding of noise suppressing high tension resistive electrical wire
EP0385326A1 (de) * 1989-02-27 1990-09-05 Yazaki Corporation Kautschukzusammensetzung für den Kern eines Hochspannungs-Widerstandskabels
GB2267990A (en) * 1992-06-17 1993-12-22 Hi Ferric Technology Limited Magnetic wire
GB2230133B (en) * 1989-04-04 1994-03-09 Prestolite Wire Corp High voltage resistance cables

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284751A (en) * 1963-10-11 1966-11-08 Eltra Corp Resistor ignition lead
DE2438979A1 (de) * 1974-08-14 1976-02-26 Kabel Metallwerke Ghh Verfahren zur herstellung elektrischer leitungen aus zwei oder mehreren zu einem buendel mit reversierendem schlag verseilten adern
GB2073481A (en) * 1980-01-31 1981-10-14 Sumitomo Electric Industries Ignition cable

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3284751A (en) * 1963-10-11 1966-11-08 Eltra Corp Resistor ignition lead
DE2438979A1 (de) * 1974-08-14 1976-02-26 Kabel Metallwerke Ghh Verfahren zur herstellung elektrischer leitungen aus zwei oder mehreren zu einem buendel mit reversierendem schlag verseilten adern
GB2073481A (en) * 1980-01-31 1981-10-14 Sumitomo Electric Industries Ignition cable

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4800359A (en) * 1987-12-24 1989-01-24 Yazaki Corporation Winding of noise suppressing high tension resistive electrical wire
GB2213980A (en) * 1987-12-24 1989-08-23 Yazaki Corp Electrical cable
GB2213980B (en) * 1987-12-24 1991-11-06 Yazaki Corp Cable
EP0385326A1 (de) * 1989-02-27 1990-09-05 Yazaki Corporation Kautschukzusammensetzung für den Kern eines Hochspannungs-Widerstandskabels
GB2230133B (en) * 1989-04-04 1994-03-09 Prestolite Wire Corp High voltage resistance cables
GB2267990A (en) * 1992-06-17 1993-12-22 Hi Ferric Technology Limited Magnetic wire

Also Published As

Publication number Publication date
FR2573241A1 (fr) 1986-05-16
FR2573241B1 (fr) 1987-05-15

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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: 19880518

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Effective date: 19880929

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Inventor name: BARILLEAU, HENRI