WO1991017552A1 - Procede d'etancheification dans le sens longitudinal d'un harnais de cables, et element souple permettant la mise en ×uvre du proccede - Google Patents

Procede d'etancheification dans le sens longitudinal d'un harnais de cables, et element souple permettant la mise en ×uvre du proccede Download PDF

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Publication number
WO1991017552A1
WO1991017552A1 PCT/US1991/002470 US9102470W WO9117552A1 WO 1991017552 A1 WO1991017552 A1 WO 1991017552A1 US 9102470 W US9102470 W US 9102470W WO 9117552 A1 WO9117552 A1 WO 9117552A1
Authority
WO
WIPO (PCT)
Prior art keywords
cables
flexible element
cable harness
sealing
flexible
Prior art date
Application number
PCT/US1991/002470
Other languages
English (en)
Inventor
Edgar Liebig
Original Assignee
Minnesota Mining And Manufacturing Company
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 Minnesota Mining And Manufacturing Company filed Critical Minnesota Mining And Manufacturing Company
Publication of WO1991017552A1 publication Critical patent/WO1991017552A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/012—Apparatus or processes specially adapted for manufacturing conductors or cables for manufacturing wire harnesses
    • H01B13/01263—Tying, wrapping, binding, lacing, strapping or sheathing harnesses
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
    • H01B13/32—Filling or coating with impervious material
    • H01B13/322—Filling or coating with impervious material the material being a liquid, jelly-like or viscous substance

Definitions

  • the invention refers to a method for sealing the interstices between individual cables of a cable harness.
  • Control and supply conduits in electrical devices for example in electrical washing machines for dishes, clothes, etc. or in automotive vehicles are collected to a cable bundle or to a cable harness.
  • such a cable harness extends through a wall which separates two compartments, e.g., the engine compartment of an automobile from the driver compartment.
  • the cable harness has to be sealed in the grommet to restrict the passing of water and of air between the compartments.
  • the tightly packed cables which at least partially have a relatively small diameter, define small longitudinal passages causing a capillary effect. This may cause corrosion in the contact areas, current leakages, or even short circuits if moisture propagates along the cable harness. It is known to interrupt the capillary effect in cable harnesses by pouring hot-setting adhesive between the individual cables in the area to be sealed. It is further known to use an intumescent hot-setting adhesive and to cover the area to be sealed with a sleeve of heat- shrinkable plastic material.
  • Cable harnesses e.g., for automotive vehicles, include 40 or more cables which partially extend irregularly and in, any case, form a tight package into which the flowable sealing substance can hardly penetrate.
  • the German patent specification DE-OS 31 43 323 describes a system in which individual cables are shaped such that particular interstices are achieved for the penetration of the sealing mass. To this purpose, the periphery of the cable sheath is provided with longitudinally extending protrusions. The protrusions can extend helically so that a distance between the cables is automatically achieved.
  • the known method requires the use of specifically prepared cables and, therefore, is not applicable to normally used cables.
  • the invention provides a method for forming and sealing the interstices between individual cables of a cable harness simply and easily with a particular structural member to define gaps between the cables to be filled with a flowable sealing mass.
  • At least some of the cables of the cable harness are attached to a flexible element in a spaced relationship.
  • the flexible element After the attachment of the cables to the flexible element, the flexible element is rolled up or is folded, respectively, to collect the cables of a cable harness.
  • the flexible element it is guaranteed that sufficient interstices are defined between the cables and all interstices between the cables can be filled with a sealing mass poured into the area to be sealed to obtain the desired longitudinal sealing of the cable bundle.
  • the flexible element is a helical coil, e.g., a helically wound spring, for example of plastic material.
  • the cables can be placed between the individual turns of the spring and retained by the axial tension prevailing therebetween.
  • a helical spring has the advantage that cables of different diameters can be accommodated since the turns of the spring can be resiliently separated in a wide range.
  • the filling up of the interstices between the cables of a cable bundle in the area to be sealed with a suitable sealing mass may take place in a suitable, preferably separable molding tool into which the cable bundle is placed.
  • a pre-sealing on both sides of the flexible element by means of retaining elements prevents the sealing mass from flowing out through the gaps between the circumference of the cable bundle and the openings of the molding tool.
  • Figure 1 is a plan view on a plurality of cables attached to a plastic spring
  • Figure 2 is an end view of the arrangement of Figure 1 in the direction of arrow 2;
  • Figure three is a plan view of a cable harness made from the cables of Figure 1;
  • Figure 4 is an elevated view partially in section in the area to be sealed with a sealing mass;
  • Figure 5 is a vertical sectional view a diagrammatically showing a molding tool accommodating a cable harness
  • Figure 6 is a perspective view of a partially extended length of the plastic spring as used in Figure 1;
  • Figure 7 is a perspective view of a further embodiment of a flexible element.
  • Figure 8 is a perspective view of a third embodiment of a flexible element.
  • a plurality of cables 10 of different diameter are arranged in parallel in a common plane.
  • the cables are placed between individual turns of a helical spring 11 of plastic material, with the spring extending approximately perpendicular to the longitudinal axis of the cables 10.
  • the axial tension between the individual turns of the spring causes the cables to be clamped therebetween.
  • a flexible strip 20 is threaded through the helical spring 11 such that a moving of the cables out of their position between the turns of the spring is prevented when the spring is flexed.
  • a similar flexible strip as shown in dotted lines at 20', can be used which is attached to the outer side of the turns of spring 11, e.g., by an adhesive in order to retain the cables 20 within spring 11.
  • the spring 11 is rolled up together with cables 10 (see arrow in Figure 3) .
  • Spring 11 forms specific interstices 14 or spaces between cables 10 of cable harness 12.
  • An adhesive tape 15, 16 is wrapped around the cable harness 12 on both sides of and spaced from spring 10 defining external retaining element 15, 16, respectively.
  • FIG. 3 The structure of Figure 3 is placed into a preferably separable cast mold, with the retaining elements 15, 16 positioned in the openings of the mold. Thereafter, a flowable sealing mass is poured into the mold to form a sealing block 18 which extends into the individual interstices 14 and externally of the cable harness 12. The retaining elements 15, 16 restrict the flowable sealing mass from leaking out prior to the curing thereof.
  • a funnel-like molding tool 30 is shown in cross section having a conical upwardly enlarging funnel portion 32 and a spout portion 34 beneath the funnel portion 32.
  • the passage of the spout portion 34 includes a portion 36 having a first diameter and a portion 38 having a second larger diameter.
  • a cable harness e.g., the cable harness 12 of Figure 3 is introduced into tool 30, e.g., from above through the funnel portion 32.
  • the passage portion 36 is dimensioned such that the flexible material of tool 30 expands radially outwardly so that the respective portion of cable bundle 12 within this area is sealed.
  • the area of the cable harness 12 to be sealed including the helical spring 11 is positioned above passage 36 within funnel portion 32.
  • flowable sealing mass is poured into the funnel portion 32 and can form a sealing block 40 similar to sealing block 18 of Figure 3.
  • tool 30 can be left onto the cable harness 12 as a sealing sleeve.
  • a wall 42 between compartments has an opening through which the cable bundle 12 is extended. The sleeve serves for the sealing of the cable harness within the opening.
  • the wall can be located in the area of funnel portion 32 as indicated at 44.
  • Figure 6 shows the plastic spring 11 of Figures 1 and 2 in a larger scale illustrating a number of turns between which cables may be inserted. In the initial or inoperative state of spring 11, the turns engaging each other preferably without a bias.
  • Figure 7 shows a flexible strip 50 of plastic material having webs or ribs 52 spaced from each other and formed on strip 50 to define pockets 54 for the accommodation of cables.
  • Figure 8 shows a strip 60 of flexible plastic material having two rows of spaced webs 62, 64 defining pockets 66, 68 for the accommodation of cables.
  • the webs 66, 68 are offset or formed in staggered rows so that the cables are clampingly engaged.
  • a pressure-sensitive adhesive layer 70 is applied to the space between the rows of along the strip webs 66, 68, the layer being covered by a removable protection layer 72, to retain the cables.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Insertion, Bundling And Securing Of Wires For Electric Apparatuses (AREA)
  • Insulated Conductors (AREA)
  • Insulating Bodies (AREA)

Abstract

Avant de les réunir en un harnais, on fixe les câbles à un élément souple s'étendant de manière transversale aux câbles. Ensuite, on enroule ou plie l'élément conjointement avec les câbles. On laisse des interstices suffisamment grands pour permettre à une masse fluide d'étanchéification de remplir complètement les espaces entre chacun des câbles afin d'obtenir une étanchéification complète du harnais de câbles dans le sens longitudinal.
PCT/US1991/002470 1990-04-28 1991-04-15 Procede d'etancheification dans le sens longitudinal d'un harnais de cables, et element souple permettant la mise en ×uvre du proccede WO1991017552A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19904013785 DE4013785A1 (de) 1990-04-28 1990-04-28 Verfahren zum abdichten eines kabelbuendels in laengsrichtung und flexibles element zur durchfuehrung des verfahrens
DEP4013785.6 1990-04-28

Publications (1)

Publication Number Publication Date
WO1991017552A1 true WO1991017552A1 (fr) 1991-11-14

Family

ID=6405393

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1991/002470 WO1991017552A1 (fr) 1990-04-28 1991-04-15 Procede d'etancheification dans le sens longitudinal d'un harnais de cables, et element souple permettant la mise en ×uvre du proccede

Country Status (2)

Country Link
DE (1) DE4013785A1 (fr)
WO (1) WO1991017552A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114843045A (zh) * 2022-06-10 2022-08-02 江西南远电缆有限公司 一种复合电缆及其生产设备
US20220367088A1 (en) * 2019-09-24 2022-11-17 Autonetworks Technologies, Ltd. Branched wire harness manufacturing method

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321044A1 (de) * 1993-06-25 1995-01-05 Henkel Kgaa Anordnung zur Energieverteilung in einem räumlich begrenzten Umfeld
DE19758025A1 (de) * 1997-12-29 1999-07-01 Volkswagen Ag Verfahren zum Abdichten der Zwischenräume zwischen einzelnen Einzelleitern eines Kabelbündels
ES2158818B1 (es) * 1999-12-07 2002-05-01 Lear Automotive Eeds Spain Procedimiento de inyeccion de pasacables y elemento centrador separador para utilizarlo con dicho procedimiento.
JP2003016859A (ja) * 2001-07-03 2003-01-17 Yazaki Corp 防水ワイヤハーネスの製造方法
DE102013006944A1 (de) * 2013-04-23 2014-10-23 Leoni Bordnetz-Systeme Gmbh Kabelsatz, Separator sowie Verfahren zum Herstellen eines Kabelsatzes

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639201A (en) * 1968-11-27 1972-02-01 Bethlehem Steel Corp Seal for multiwire strand
EP0038861A1 (fr) * 1979-11-02 1981-11-04 Mitsubishi Denki Kabushiki Kaisha Faisceau de fils
EP0249510A1 (fr) * 1986-06-12 1987-12-16 Raychem Limited Dispositif de blocage pour supprimer la transmission de fluide dans des câbles

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1490306A1 (de) * 1962-07-13 1969-10-09 Siemens Ag Verfahren zur Festlegung von zu einem Kabelstamm zusammengefassten Kabeldraehten
DE1241889B (de) * 1963-01-11 1967-06-08 Licentia Gmbh Einrichtung zum Halten bzw. Festlegen der Anschlussenden einer Mehrzahl von Leitungen in Schalt- oder Steueranlagen
DE1515626A1 (de) * 1965-10-15 1969-08-28 Lisa Draexlmaier Fa Herstellung von Kabelbaeumen
DE3143323C2 (de) * 1981-10-31 1984-01-19 AEG-Telefunken Kabelwerke AG, Rheydt, 4050 Mönchengladbach "Mehradriges, längswasserdichtes Kabel"
DE3631769A1 (de) * 1986-09-18 1988-04-07 Dsg Schrumpfschlauch Gmbh Verfahren und vorrichtung zum laengswasserabdichten vieladriger kabelbuendel
DE3809167A1 (de) * 1986-09-18 1989-09-28 Dsg Schrumpfschlauch Gmbh Verfahren und vorrichtung zum laengswasserabdichten vieladriger kabelbuendel
DE3823312A1 (de) * 1988-07-09 1990-01-11 Minnesota Mining & Mfg Verfahren zum abdichten eines kabelbuendels in laengsrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639201A (en) * 1968-11-27 1972-02-01 Bethlehem Steel Corp Seal for multiwire strand
EP0038861A1 (fr) * 1979-11-02 1981-11-04 Mitsubishi Denki Kabushiki Kaisha Faisceau de fils
EP0249510A1 (fr) * 1986-06-12 1987-12-16 Raychem Limited Dispositif de blocage pour supprimer la transmission de fluide dans des câbles

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20220367088A1 (en) * 2019-09-24 2022-11-17 Autonetworks Technologies, Ltd. Branched wire harness manufacturing method
CN114843045A (zh) * 2022-06-10 2022-08-02 江西南远电缆有限公司 一种复合电缆及其生产设备
CN114843045B (zh) * 2022-06-10 2022-11-25 江西南远电缆有限公司 一种复合电缆及其生产设备

Also Published As

Publication number Publication date
DE4013785A1 (de) 1991-10-31
DE4013785C2 (fr) 1992-10-29

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