FR2601522A1 - Moulded component for holding, protecting and insulating electrical conductors, and its method of installation by shrinking at room temperature - Google Patents

Moulded component for holding, protecting and insulating electrical conductors, and its method of installation by shrinking at room temperature Download PDF

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Publication number
FR2601522A1
FR2601522A1 FR8610439A FR8610439A FR2601522A1 FR 2601522 A1 FR2601522 A1 FR 2601522A1 FR 8610439 A FR8610439 A FR 8610439A FR 8610439 A FR8610439 A FR 8610439A FR 2601522 A1 FR2601522 A1 FR 2601522A1
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France
Prior art keywords
solvent
protecting
shrinking
holding
installation
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FR8610439A
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French (fr)
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FR2601522B1 (en
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Priority to FR8610439A priority Critical patent/FR2601522B1/en
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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
    • H02G15/00—Cable fittings
    • H02G15/02—Cable terminations
    • H02G15/04—Cable-end sealings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/003—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor characterised by the choice of material
    • 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
    • H02G15/00—Cable fittings
    • H02G15/08—Cable junctions
    • H02G15/18—Cable junctions protected by sleeves, e.g. for communication cable

Landscapes

  • Insulating Bodies (AREA)

Abstract

Method for making and installing a component for holding, protecting and insulating electrical conductor elements and, possibly, of their supports, characterised in that it includes the separate moulding of the said component which is made of a thermoplastic rubber or any other material having the property of significantly increasing its volume when it is immersed in a suitable solvent, and of shrinking on drying, the immersion of the said material in the said solvent in order to swell it just before installing it around the elements to be protected, the installation of the said member while it still experiences the effect of the solvent and its drying in the open air in order to shrink it.

Description

ORGANE MOULE DE MAINTIEN DE PROTECTION ET D'ISOLATION DE
CONDUCTEURS ELECTRIQUES ET SON PROCEDE DE MISE EN PLACE PAR
RETRACTION A LA TEMPERATURE AMBIANTE.MOLDING MEMBER FOR PROTECTION AND INSULATION OF
ELECTRICAL CONDUCTORS AND ITS INSTALLATION METHOD BY
RETRACTION TO AMBIENT TEMPERATURE.

L'invention se rapporte aux organes de maintien, de protection et d'isolation, conformés en gaines, étuis ou capots de formes diverses dans lesquels se logent des portions d'éléments conducteurs et de leurs supports que l'organe de protection doit enserrer étroitement. Une application particulière, mais non limitative, de l'invention, concerne les dispositifs, en forme de tétine, de protection des câbles qui se raccordent à l'arrière d'un connecteur.The invention relates to holding, protecting and insulating members, formed in sheaths, cases or covers of various shapes in which are housed portions of conductive elements and their supports which the protective member must enclose tightly . A particular, but not limiting, application of the invention relates to devices, in the form of a pacifier, for protecting cables which are connected to the rear of a connector.

Dans l'art antérieur, ces organes sont généralement constitués en matière thermorétractable, une polyoléfine par exemple.In the prior art, these members are generally made of heat-shrinkable material, a polyolefin for example.

L'organe est dimensionné au départ pour permettre l'introduction facile des éléments à protéger, et chauffé après sa mise en place (par exemple à l'air chaud), ce qui réduit son volume par exemple de moitié, pour qu'il vienne enserrer étroitement lesdits éléments et assurer l'étanchéité.The organ is dimensioned at the start to allow the easy introduction of the elements to be protected, and heated after its installation (for example with hot air), which reduces its volume for example by half, so that it comes tightly enclose said elements and ensure sealing.

Ce procédé de mise en place est de mise en oeuvre relativement délicate (requérant l'emploi d'un outillage spécial) et la matière thermorétractable est onéreuse. This installation process is relatively delicate to implement (requiring the use of special tools) and the heat-shrinkable material is expensive.

L'invention propose de supprimer ces inconvénients en réalisant l'organe de protection en un caoutchouc thermoplastique avec les formes et les dimensions correspondant aux éléments qu'il doit recevoir et en le trempant, juste avant mise en place, dans un solvant aromatique ou un solvant organique halogéné, tel que le trichloréthylène.The invention proposes to eliminate these drawbacks by making the protective member in thermoplastic rubber with the shapes and dimensions corresponding to the elements which it must receive and by dipping it, just before installation, in an aromatic solvent or a halogenated organic solvent, such as trichlorethylene.

Les caoutchoucs thermoplastiques ont la propriété d'augmenter notablement de volume lorsqu'ils sont soumis à un tel traitement et de subir au séchage une rétraction jusqu a un volume inférieur au volume d'origine, sans devoir pour cela être soumis à un traitement thermique quelconque.Thermoplastic rubbers have the property of significantly increasing in volume when subjected to such a treatment and of undergoing shrinkage to a volume below the original volume on drying, without having to be subjected to any heat treatment for this. .

L'invention sera mieux comprise à l'aide de l'exemple d'application ci-après.The invention will be better understood using the application example below.

On réalise l'organe de protection, avec la forme appropriée et des dimensions correspondant aux éléments qu'il doit recevoir, par exemple l'arrière d'un connecteur, par moulage d'un caoutchouc thermoplastique. On effectue ensuite un trempage pendant une demi-heure environ dans du trichloréthylène, ce qui provoque une augmentation de dimensions d'environ 50 %. On met alors l'organe de protection en place sur le connecteur et on introduit les câbles multibrins qui doivent lui être raccordés pendant que ledit organe est encore sous l'effet du trichloréthylène ; on le laisse ensuite se rétracter à l'air libre. Ses dimensions se réduisent alors à des valeurs inférieures aux valeurs d'origine, si bien qu'il épouse ainsi étroitement les câbles et l'arrière du connecteur. The protective member is produced, with the appropriate shape and dimensions corresponding to the elements which it must receive, for example the rear of a connector, by molding of a thermoplastic rubber. A soaking is then carried out for approximately half an hour in trichlorethylene, which causes an increase in dimensions of approximately 50%. The protective member is then put in place on the connector and the multi-strand cables which must be connected to it are introduced while said member is still under the effect of trichlorethylene; it is then allowed to retract in the open air. Its dimensions are then reduced to values lower than the original values, so that it closely follows the cables and the rear of the connector.

Cette technique permet d'employer, soit des caoutchoucs souples, soit des caoutchoucs relativement durs. This technique makes it possible to use either flexible rubbers or relatively hard rubbers.

Claims (4)

RevendicationsClaims 1. Procédé de fabrication et de mise en place d'un organe de maintien, de protection et d'isolation d'éléments conducteurs électriques et éventuellement, de leurs supports, caractérisé en ce qu'il comporte le moulage séparé dudit organe en caoutchouc thermoplastique, ou autre matière ayant la propriété d'augmenter notablement de volume lorsqu'elle est trempée dans un solvant approprié, et de se rétracter au séchage, le trempage de ladite matière dans ledit solvant pour provoquer son gonflement juste avant sa mise en place autour des éléments à protéger, la mise en place dudit organe pendant qu'il subit encore l'effet du solvant et son séchage à l'air libre pour provoquer sa rétraction. 1. A method of manufacturing and installing a member for holding, protecting and insulating electrical conductive elements and possibly their supports, characterized in that it comprises the separate molding of said member in thermoplastic rubber , or other material having the property of significantly increasing in volume when soaked in an appropriate solvent, and of shrinking on drying, soaking said material in said solvent to cause it to swell just before it is placed around the elements to be protected, the positioning of said member while it is still under the effect of the solvent and its drying in the open air to cause it to shrink. 2. Procédé selon la revendication 1, caractérisé en ce que ledit solvant est un solvant aromatique ou un solvant organique halogéné. 2. Method according to claim 1, characterized in that said solvent is an aromatic solvent or a halogenated organic solvent. 3. Procédé selon la revendication 2, caractérisé en ce que ledit solvant est du trichloréthylène. 3. Method according to claim 2, characterized in that said solvent is trichlorethylene. 4. Organe de maintien, de protection et d'isolation d'éléments conducteurs électriques et, éventuellement, de leurs supports, caractérisé en ce qu'il est obtenu au moyen du procédé selon la revendication 1, 2 ou 3.  4. member for maintaining, protecting and insulating electrical conductive elements and, optionally, their supports, characterized in that it is obtained by means of the method according to claim 1, 2 or 3.
FR8610439A 1986-07-11 1986-07-11 MOLDED MEMBER FOR PROTECTING AND INSULATING ELECTRICAL CONDUCTORS AND METHOD FOR SETTING IT UP BY RETRACTION AT AMBIENT TEMPERATURE Expired - Lifetime FR2601522B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8610439A FR2601522B1 (en) 1986-07-11 1986-07-11 MOLDED MEMBER FOR PROTECTING AND INSULATING ELECTRICAL CONDUCTORS AND METHOD FOR SETTING IT UP BY RETRACTION AT AMBIENT TEMPERATURE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8610439A FR2601522B1 (en) 1986-07-11 1986-07-11 MOLDED MEMBER FOR PROTECTING AND INSULATING ELECTRICAL CONDUCTORS AND METHOD FOR SETTING IT UP BY RETRACTION AT AMBIENT TEMPERATURE

Publications (2)

Publication Number Publication Date
FR2601522A1 true FR2601522A1 (en) 1988-01-15
FR2601522B1 FR2601522B1 (en) 1990-05-11

Family

ID=9337527

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8610439A Expired - Lifetime FR2601522B1 (en) 1986-07-11 1986-07-11 MOLDED MEMBER FOR PROTECTING AND INSULATING ELECTRICAL CONDUCTORS AND METHOD FOR SETTING IT UP BY RETRACTION AT AMBIENT TEMPERATURE

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FR (1) FR2601522B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405030A1 (en) * 1988-03-28 1991-01-02 Ttk Kenmark Corporation A shrinkable elastomeric sleeve

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB583730A (en) * 1944-11-23 1946-12-30 J A Crabtree And Company Ltd Improvements in and connected with the treatment of polyvinyl chloride
DE890201C (en) * 1951-07-29 1953-09-17 Siemens Ag Hose made of swellable substances for binding isolated electrical lines
US2751629A (en) * 1953-12-11 1956-06-26 Richard A Fisch Process of reshaping plastic materials
GB883155A (en) * 1960-02-23 1961-11-22 Standard Telephones Cables Ltd Improvements in or relating to processes in the manufacture and installation of electric cable
DE2621843A1 (en) * 1976-05-17 1977-12-01 Volkswagenwerk Ag Mounting of fixed close fitting plastic sheath - by temporary expansion of plastic with volatile agent
FR2372370A1 (en) * 1976-11-29 1978-06-23 Althouse Victor
WO1984001323A1 (en) * 1982-09-27 1984-04-12 Akzona Inc Method for dilating plastics using volatile swelling agents

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB583730A (en) * 1944-11-23 1946-12-30 J A Crabtree And Company Ltd Improvements in and connected with the treatment of polyvinyl chloride
DE890201C (en) * 1951-07-29 1953-09-17 Siemens Ag Hose made of swellable substances for binding isolated electrical lines
US2751629A (en) * 1953-12-11 1956-06-26 Richard A Fisch Process of reshaping plastic materials
GB883155A (en) * 1960-02-23 1961-11-22 Standard Telephones Cables Ltd Improvements in or relating to processes in the manufacture and installation of electric cable
DE2621843A1 (en) * 1976-05-17 1977-12-01 Volkswagenwerk Ag Mounting of fixed close fitting plastic sheath - by temporary expansion of plastic with volatile agent
FR2372370A1 (en) * 1976-11-29 1978-06-23 Althouse Victor
WO1984001323A1 (en) * 1982-09-27 1984-04-12 Akzona Inc Method for dilating plastics using volatile swelling agents

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0405030A1 (en) * 1988-03-28 1991-01-02 Ttk Kenmark Corporation A shrinkable elastomeric sleeve

Also Published As

Publication number Publication date
FR2601522B1 (en) 1990-05-11

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