SE455909B

SE455909B - Peripheral recess for cable drum gable

Info

Publication number: SE455909B
Application number: SE8302667A
Authority: SE
Inventors: K B Jernfalk
Original assignee: Ericsson Telefon Ab L M
Priority date: 1983-05-10
Filing date: 1983-05-10
Publication date: 1988-08-15
Also published as: SE8302667D0; SE8302667L

Abstract

The drum for a cable has a contact fitment at each end, and comprises a primary core (1) with a gable (2) at one end, and two other gables (3,4) at its other end. The latter two gables are separated by a secondary core (5) on which the cable inner end is accomodated. The remainder of the cable is wound on to the primary core. The exterior of one of the latter two gables (4) has a space (6) which can receive the contact fitment. Between the space and its gable (4) is a peripheral recess (8) for the cable. Likewise, the other of the latter two gables (3) has at least one second cable recess (9,10) between the third cable peripheral recess (8) and the primary core (1). The axially formed third gable recess (6) limiting surfaces are provided with sprung material (7) which retains the contact fitment in a sprung and peripherally variable manner. (Provisional Basic advised week 85/01)

Description

455 10 15' 20 25' 909 innefattar en primärkärna l med en första gavel 2 vid sin ena ände och en andra och en tredje gavel 3 resp. 4 vid sin andra ände. Den andra och den tredje gaveln 3 resp.4 är atskilda medelst en sekundärkärna S, pà vilken den icke visade kabelns innerände eller inre längd är avsedd att upptagas, medan kabeln i övrigt är avsedd att upptagas pa primärkërnan l. 455 10 15 '20 25' 909 comprises a primary core 1 with a first end 2 at its one end and a second and a third end 3 resp. 4 at its other end. The second and third ends 3 and 4, respectively, are separated by means of a secondary core S, on which the inner end or inner length of the cable (not shown) is intended to be received, while the cable is otherwise intended to be received on the primary core 1.

Enligt uppfinningen uppvisar den tredje gavelnsà utsida ett utrymmeó för upptagande av kabelns icke visade kontaktdon. Vid den visade utföringsformen utgöres utrymmet 6 av ett ringformat, axiellt urtag i gaveln 4. Utrymmet 6 âr utformat för fjädrande och periferiellt variabel fasthallning av de icke visade kontaktdonen och är vid den visade utföringsformen belagt pa sin inre, radiella begränsningsyta med ett skikt 7 av fjädrande material, exempelvis gummi. I skiktet 7 kan ett icke visat spar vara utformat för upptagande av ett eller flera varv av den icke visade kabelns ytterände.According to the invention, the outside of the third end wall has a space for receiving the connector (not shown) of the cable. In the embodiment shown, the space 6 consists of an annular, axial recess in the end wall 4. The space 6 is designed for resilient and peripherally variable holding of the connectors (not shown) and in the embodiment shown is coated on its inner, radial limiting surface with a layer 7 of resilient materials, such as rubber. In the layer 7, a groove (not shown) can be designed for receiving one or more turns of the outer end of the cable (not shown).

Utrymmet 6 behöver givetvis icke vara utformat pa visat sätt, utan kan exempelvis vara uppdelat i fack, där minst en av begränsningsytorna är försedd med fjädrande material. Storleken av utrymmet 6 är givetvis beroende av stor- leken på kontaktdonen, som skall upptagas.The space 6 does not, of course, have to be designed in the manner shown, but can for instance be divided into compartments, where at least one of the limiting surfaces is provided with resilient material. The size of the space 6 is of course dependent on the size of the connectors to be accommodated.

För att skydda den icke visade kabeln vid övergången mellan utrymmet 6 och kärnanS samt mellan kärnorna 5 och l är gavelnli försedd med ett radiellt urtagB vid den visade utföringsformen, vilket urtag8 sträcker sig mellan utrymmeté och gavelnsli omkretskant, medan gaveln 3 vid den visade ut- föringsformen uppvisar tva, at var sitt häll gaende urtag9 resp. 10, vilka sträcker sig fran gavelns 3 omkretskant ned till primärkärnans 1 periferi, för att medge upplindning av kabeln i bada rotationsriktningarna.To protect the cable (not shown) at the transition between the space 6 and the core S and between the cores 5 and 1, the end wall is provided with a radial recess B in the embodiment shown, which recess 8 extends between the space and the circumferential edge of the end wall, while the end 3 the form of the lining shows two, that each has its own recessed recess9 resp. 10, which extend from the circumferential edge of the end 3 down to the periphery of the primary core 1, to allow winding of the cable in both directions of rotation.

För att ytterligare skydda kontaktdonen i utrymmet 6 kan detta täckas medelst en icke visad tâckskiva, som är försedd med lämpliga fästorgan.In order to further protect the connectors in the space 6, this can be covered by means of a cover plate (not shown), which is provided with suitable fastening means.

Claims

A drum for a cable with connectors at both ends, which drum comprises a primary core (1) with a first end (2) at one end and a second and a third end (3 and 4, respectively). ) at its second end, where the second and third ends (3 and 4, respectively) are separated by a secondary core (5), on which the inner end of the cable is intended to be received, while the cable is otherwise intended to be received on the primary core (1) , the outside of the third end (4) having at least one space (6) for receiving the connectors and at least one first recess (8) for the cable and the second end (3) running circumferentially between this space and the end (li) in question having at least a second recess (9,10) for the cable passing between its circumferential edge and the primary core (1), said space (6) for receiving the connectors being constituted by an axially shaped recess, characterized in that at least one of the axially designed recesses the confinement surfaces of the roof (6) are provided with resilient food erial (7) for resilient and circumferentially variable holding of the connectors.

Drum according to the preceding claim, characterized in that it comprises a cover plate for the space (6) for the connectors.