CH479144A

CH479144A - Electric cable

Info

Publication number: CH479144A
Application number: CH463768A
Authority: CH
Inventors: Doebeli Eric
Original assignee: Cableries Sa Des; Trefileries De Cossonay
Priority date: 1968-03-26
Filing date: 1968-03-26
Publication date: 1969-09-30

Description

Cäble eleetrique Les cäbles electriques qui transportent soit de 1'6ner- gie soit des informations dans 1e domaine des t616com- munications sont constitu6s par un ensemble de conduc- teurs iso1es (faisceaü de 1 ä 6000 616ments) normalement entour6s d'un manteau. Ce manteau a pour but de pro t6ger 1e faisceau des conducteurs contre 1'effet nuisible de 1'ambiance (humidit6, effets corrosifs et micaniques, effets 6lectriques). Il doit en outre tenir 1e faisceau et donner au cäble une surface lisse. Mais dans certains cas, tels qu'un montage ä 1'int6rieur d'un bätiment et pour des cäbles de faible longueur, souvent montds sur bätis, 1e manteau ne joue plus son röle protecteur. Cela est d'autant plus 1e cas lorsque les e16ments du faisceau sont peu nombreux - souvent moins de 10 - et qu'ils sont isoles ou entour6s par des matieres plastiques de haute qualit6 (par exemple du polychlorure de vinyle ou du polyethylene). Le manteau a, dann ces cas seulement, 1e röle de tenir 1e faisceau ensemble. 0n peut alors penser, pour diminuer 1e volume, 1e poids et 1e prix du cäble, de remplacer ce manteau par un simple fil, ou une bande, enroule en h61ice autour du faisceau - cet e16- ment pouvant etre collant ou non. Cette solution West pas pratique, car si 1'616ment West pas collant, il se d6tache lorsqu'on d6coupe une longueur du cä.ble et si 1'616ment est collant, il est difficile ä defaire et 1'ensemble ne se pr6sente pas proprement. Electric cable The electric cables which transport either energy or information in the field of telecommunications consist of a set of insulated conductors (bundle of 1 to 6000 elements) normally surrounded by a jacket. The purpose of this coat is to protect the bundle of conductors against the harmful effects of the atmosphere (humidity, corrosive and mechanical effects, electrical effects). It should also hold the bundle and give the cable a smooth surface. But in some cases, such as mounting inside a building and for cables of short length, often mounted on racks, the coat no longer plays its protective role. This is all the more the case when the beam elements are few in number - often less than 10 - and they are insulated or surrounded by high quality plastic materials (eg polyvinyl chloride or polyethylene). The mantle has, in these cases only, the 1st role of holding the bundle together. One can then think, to reduce the volume, the weight and the price of the cable, to replace this coat by a simple wire, or a strip, wound in a spiral around the bundle - this element being able to be sticky or not. This solution is not practical, because if the element is not sticky, it comes off when you cut a length of the cable and if the element is sticky, it is difficult to undo and the assembly does not look clean. .

La presente invention a pour objet un cäble dlectri- que, caract6rise en ce qu'il est constitu6 par un faisceau d'616ments filiformes tenus ensemble par collage. The subject of the present invention is an electric cable, characterized in that it consists of a bundle of filiform elements held together by gluing.

L'invention a 6galement pour objet un proced6 de fabrication de ce cäble et un dispositif pour la mise en aeuvre de ce proc6de. The invention also relates to a process for manufacturing this cable and a device for implementing this process.

Le dessin sch6matique annex6, donn6 ä titre d'exem- ple, reprdsente une forme d'execution du cäble objet de 1'invention et du dispositif de mise en aeuvre de son pro c6d6 de fabrication. La fig. 1 est une vue en 616vation, partiellement en coupe, du dispositif ; la fig. 2 est une vue en perspective du cä.ble obtenu au moyen du dispositif illustr6 dans la fig. 1. The appended schematic drawing, given by way of example, shows one form of execution of the cable which is the subject of the invention and of the device for implementing its manufacturing process. fig. 1 is a 616vation view, partially in section, of the device; fig. 2 is a perspective view of the cable obtained by means of the device illustrated in FIG. 1.

Le proc6d6 de fabrication du cäble dlectrique decrit ci-apres est caract6ris6 en ce qu'on colle dune maniere continue les 616ments du faisceau les uns aux RTI ID="0001.0274" WI="10" HE="4" LX="1819" LY="1544"> autres. The electrical cable manufacturing process described below is characterized in that the elements of the bundle are continuously glued to each other RTI ID="0001.0274" WI="10" HE="4" LX="1819" LY="1544"> others.

A cet effet, an amene au moyen du dispositif d6crit ci-apres, üne colle dissoute dans un solvant sous pression ä 1'endroit oü les 616ments ä coller se rejoignent dans une cäbleuse, la jonction de ces 616ments 6tant r6alisee par des proc6d6s de cä.blage connus. For this purpose, an brings, by means of the device described below, an adhesive dissolved in a solvent under pressure to the place where the 616ments to be glued meet in a cable machine, the junction of these 616ments being carried out by cär6d6s processes. .blage known.

Le dispositif pour la mise en Oeuvre du procede dkrit comprend un recipient 4 (fig. 1) contenant une matiere collante. Ce r6cipient est connect6 ä une source 1 d'air sous pression, cette pression 6tant r6g16e par un Uten- deur 2 et mesuree par un manometre 3. La manoeuvre dune vanne 5 permet au liquide sous pression d'entrer dans un tube 6 renfermant une tige 7. Cette tige 7, com- mand6e par une manivelle 8, regle par un pointeau 9 1e d6bit dune buse et, par consdquent, la quantit6 de liquide qui est distribu6e ä 1'aide d'un court tube 10 sur 1'ele- ment central 11 du faisceau autour duquel se rejoignent, ä peu de distance de 1ä, les 616ments 12 ä cäbler. L'ele- ment central du faisceau se d6roule d'un tambour 13 mont6 derriere la corbeille tournante de la cäbleuse 14, repr6sentge en traits mixtes dans la fig. 1. Sur cette cäbleuse sont montges des bobines 15 desquelles se d6- roulent les 616ments ä cäbler. The device for implementing the process described comprises a container 4 (fig. 1) containing a sticky material. This container is connected to a source 1 of pressurized air, this pressure being regulated by a tensioner 2 and measured by a manometer 3. The operation of a valve 5 allows the pressurized liquid to enter a tube 6 containing a rod 7. This rod 7, controlled by a crank 8, regulates by a needle 9 the flow rate of a nozzle and, consequently, the quantity of liquid which is distributed by means of a short tube 10 on the - central element 11 of the beam around which meet, at a short distance of 1ä, the 616 elements 12 to be wired. The central element of the harness unwinds from a drum 13 mounted behind the rotating basket of the corder 14, shown in phantom in FIG. 1. On this cable machine are mounted reels 15 from which the elements to be cabled are unwound.

Le dispositif d6crit dont les 616ments constitutifs sont connus, permet d'6viter que la colle salisse la cäbleuse, la colle d6bouchant de 1'appareil 6tant imm6diatement prise entre les fils du faisceau. Il est important que 1e diametre interieur du petit tute qui distribue la matiere collante ne soit que 16gerement plus grand que 1'616ment central du faisceau qui 1e traverse. Il est avantageux de 1e munir de rainures facilitant la distribution de la colle. Dans le cas oü la surface de 1'616ment central et celle des 616ments p6riph6riques ä cäbler est en polychlorure de vinyle, la tolle utilis6e est form6e d'un m61ange de polychlorure de vinyle et de cyclohexanone, ce m61ange 6tant connu dans le commerce sous 1e nom de ( < pentha- colle . Cette tolle dont an enduit los surfaces ä toller seche dans un temps relativement assez tourt, par exem- ple en moins de 24 Neures. The device described, the constituent elements of which are known, makes it possible to prevent the glue from soiling the cable machine, the glue emerging from the device being immediately caught between the wires of the bundle. It is important that the inside diameter of the small nozzle which distributes the sticky material is only slightly larger than the central element of the beam which passes through it. It is advantageous to provide it with grooves facilitating the distribution of the glue. In the case where the surface of the central element and that of the peripheral elements to be wired is made of polyvinyl chloride, the sheet used is formed from a mixture of polyvinyl chloride and cyclohexanone, this mixture being known in the trade under the name This tolle with which the surfaces to be tolled are coated dries in a relatively fairly short time, for example in less than 24 Neures.

La fig. 2 repr6sente, ä titre d'exemple, un cäble fabri- qu6 comme d6crit ci-dessus. Autour d'un 616ment central, par exemple un bourrage en matiere plastique, sont cäbI6s 5 petits cäbles concentriques, chacun 6tant cons- titu6 par un fil central, une isolation thermoplastique, un ecran m6tallique tress6 et un manteau en matiäre plasti- que. Ces 616ments sont tenus ensemble par une tolle r6partie sur la partie de leur surface qui est orientee en direction du bourrage central, celui-ci 6tant 6galement couvert de tolle. Le collage est effectu6 de mani6re quo 1e tout tienne bien ensemble, mais quo los 616ments puis- sent etre facilement s6par6s los uns des autres par une simple traction. fig. 2 shows, by way of example, a cable manufactured as described above. Around a central element, for example a stuffing made of plastic material, are cabled 5 small concentric cables, each consisting of a central wire, a thermoplastic insulation, a braided metal screen and a coat of plastic material. These elements are held together by a sheet distributed over the part of their surface which is oriented in the direction of the central stuffing, the latter also being covered with sheet. The gluing is carried out in such a way that everything holds together well, but that the elements can be easily separated from each other by a simple pull.

I1 est ä remarquer quo los 616ments filiformes ä-sur- face lisse peuvent etre form6s, par exemple de fils isolds, de cäbles coaxiaux ou de bourrages. It should be noted that the filiform elements with a smooth surface can be formed, for example, from insulated wires, coaxial cables or fillers.

Une exkution particulierement int6ressante du cäble d6crit est son application ä des ondes porteuses : autour d'un bourrage central en polychlorure de vinyle et d'un diamkre de 3,7 mm sont cäbI6s cinq petits cäbles coaxiaux d'un diametre ext6rieur de 5,6 mm, 1e diam6tre de Fensemble 6tant ainsi de 14,9 mm. Le meine cäble, sans collage, mais uruni d'un manteau aurait un diamätre de 18,5 mm. Le cäble d6crit a donc une section 32 plus faible, ce qui a une grande importance dans une centrale t616phonique oü la place disponible sur los bätis est restreinte. A particularly interesting version of the described cable is its application to carrier waves: around a central stuffing in polyvinyl chloride and with a diameter of 3.7 mm are wired five small coaxial cables with an outside diameter of 5.6 mm. mm, the diameter of the assembly thus being 14.9 mm. The same cable, without gluing, but covered with a coat, would have a diameter of 18.5 mm. The cable described therefore has a smaller section 32, which is of great importance in a telephone exchange where the space available on the racks is limited.

Claims

CLAIMS I. Electric cable, characterized in that it consists of a bundle of filiform elements held together by gluing.

II. Process for the manufacture of the electric cable according to claim I, characterized in that the 616 elements of the bundle are continuously tossed to each other by bringing under pressure a tolle close to the place where these 616 elements meet Tors du wiring. 11I. Device for carrying out the process according to claim 11, characterized in that it comprises a tube placed near the end of a cable and allowing the tolle to be brought near to the place where the 61st elements of the beam meet , a rod for adjusting the flow of tolle through this tube being arranged so as to be able to be actuated from the input of the cable machine and a section of tube distributing the tolle on the central element of the bundle.

SUB-CLAIMS 1. Cable according to claim 1, characterized in that it is constituted by a stuffing as the central element and by insulated conductors, cables around the central element and co116s on the said stuffing.

2. RTI cable ID="0002.0262" WI="8" HE="4" LX="1323" LY="1032"> according to claim I and sub-claim 1, characterized in that the surface of the 616ments is made of polyvinyl chloride and in that the sticky material is a mixture of polyvinyl chloride and cyclohexanone.

3. Cable according to claim 1 and sub-claim 1, characterized in that the 616 elements of the bundle, cables around the stuffing, are coaxial cables for the transmission of telephone carrier waves, each coaxial cable 6 being consisting of a central conductor, plastic insulation, a metal screen and a polyvinyl chloride jacket.

4. Device according to claim 11I, caract6ris6 in that said tube section is uruni grooves.