DE889627C - Flexible cable sheath made of aluminum - Google Patents

Flexible cable sheath made of aluminum

Info

Publication number
DE889627C
DE889627C DEA6846D DEA0006846D DE889627C DE 889627 C DE889627 C DE 889627C DE A6846 D DEA6846 D DE A6846D DE A0006846 D DEA0006846 D DE A0006846D DE 889627 C DE889627 C DE 889627C
Authority
DE
Germany
Prior art keywords
aluminum
flexible cable
jacket
cable sheath
sheath made
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.)
Expired
Application number
DEA6846D
Other languages
German (de)
Inventor
Otto Dr Dahl
Carl Dr-Ing Haase
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.)
AEG AG
Original Assignee
AEG AG
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 AEG AG filed Critical AEG AG
Priority to DEA6846D priority Critical patent/DE889627C/en
Application granted granted Critical
Publication of DE889627C publication Critical patent/DE889627C/en
Expired legal-status Critical Current

Links

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
    • H01B7/20—Metal tubes, e.g. lead sheaths
    • H01B7/205—Metal tubes, e.g. lead sheaths composed of aluminium

Landscapes

  • Insulated Conductors (AREA)

Description

Kabel mit Mänteln aus Metall höherer Festigkeit als Blei, insbesondere Aluminium, bereiten bei (der Verlegung infolge ihrer Starrheit beträchtliche Schwierigkeiten.Cables with sheaths made of metal of higher strength than lead, in particular Aluminum, cause considerable difficulties in laying due to their rigidity.

Es ist schon bekannt, durch wellenförmige Ausbildung des Mantels die Biegsamkeit von Kabeln zu erhöhen. Diese wellenförmige Ausbildung kann auf verschiedene Weise erfolgen, z. B. durch Einkerbung mittels einer zangenartigen Vorrichtung oder durch Einschnüren mittels Drähten beim noch heißen Material.It is already known by the wave-shaped design of the jacket Increase flexibility of cables. This wave-like training can be different Be done, e.g. B. by notching by means of a pincer-like device or by constricting with wires while the material is still hot.

Besonders bei hochwertigen Fernmeldekabeln ist aber :diese Beanspruchung der Kabelseele bei der Einkerbung oder bei sonstiger Ausführung der Wellenform des Mantels schädlich, da hierdurch die elektrischen Werte geändert werden. Bei der Aufpressung des Mantels kann überdies bei Aluminium nicht .unter eine gewisse Grenze in der Stärke des Mantels gegangen werden.But especially with high-quality telecommunication cables: this stress the cable core in the notch or in any other design of the waveform of the Damage to the jacket, as this changes the electrical values. In the In addition, the jacket cannot be pressed on in the case of aluminum. Below a certain limit be gone in the strength of the mantle.

Gegenstand der Erfindung ist ein biegsamer Kabelmantel, insbesondere für Fernmeldekabel, beispielsweise aus .Aluminium, mit dem Kennzeichen, daß er zur Erhöhung und zur Erreichung einer gleichmäßigen Biegsamkeit mit Rillen versehen ist, an deren Stelle die Wandstärke des Mantels geringer ist als die bei der Aufpressung erreichbare Mindeststärke, und daß die Rillen durch spanabhebernde Werkzeuge erzeugt worden sind. Bei der Herstellung :der Rillen wind die Kabelseele nicht im geringsten beansprucht. Da überdies bei der Bearbeitung des Mantels durch spanabhebende Werkzeuge jegliche Verformung .der Innenwandung -des Metallmantels vermieden wird, ist auch keine Beschädigung oder schädliche Beanspruchung möglich, wie sie bei der Herstellung eines wellenförmigen Mantels eintreten kann.The invention relates to a flexible cable jacket, in particular for telecommunication cables, for example made of .Aluminium, with the mark that it is used for Raised and grooved to achieve uniform flexibility is, at the point of which the wall thickness of the jacket is less than that when it is pressed on attainable minimum thickness, and that the grooves produced by cutting tools have been. During production: the grooves do not wind the cable core in the slightest claimed. Since, moreover, when machining the jacket with cutting tools any deformation of the inner wall of the metal jacket is avoided no damage or harmful stress possible, as is the case during manufacture a wave-shaped jacket can occur.

In der Abbildung ist ein -Kabelmantel gemäß der Erfindung beispielsweise ,dargestellt. Mit ca ist die Kabelseele ,und mit b der Mantel aus Aluminium od. ;dgl. bezeichnet, welcher mit schraubenförmig verlaufenden Rillen c versehen ist.In the figure, a cable jacket according to the invention is for example , shown. With ca is the cable core, and with b the jacket made of aluminum or. ; like. denotes, which is provided with helical grooves c.

Claims (1)

PATENTANSPRUCH: Biegsamer Kabelmantel, insbesondere für Fernmeldekabel, beispielsweise aus Aluminium, dadurch gekennzeichnet, daß er zur Erhöhung und zur -Erreichung einer gleichmäßigen Biegsamkeit mit Rillen versehen ist, welche durch spanabhebende Werkzeuge erzeugt worden sind. Claim: Flexible cable jacket, in particular for telecommunication cables, for example made of aluminum, characterized in that it is provided with grooves to increase and achieve uniform flexibility, which have been produced by cutting tools.
DEA6846D 1939-07-06 1939-07-06 Flexible cable sheath made of aluminum Expired DE889627C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEA6846D DE889627C (en) 1939-07-06 1939-07-06 Flexible cable sheath made of aluminum

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA6846D DE889627C (en) 1939-07-06 1939-07-06 Flexible cable sheath made of aluminum

Publications (1)

Publication Number Publication Date
DE889627C true DE889627C (en) 1953-09-10

Family

ID=6921110

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA6846D Expired DE889627C (en) 1939-07-06 1939-07-06 Flexible cable sheath made of aluminum

Country Status (1)

Country Link
DE (1) DE889627C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3320949A1 (en) * 1983-06-10 1984-12-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device for producing a threaded profile on a dielectric waveguide

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3320949A1 (en) * 1983-06-10 1984-12-13 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Device for producing a threaded profile on a dielectric waveguide

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