Optical waveguides – With disengagable mechanical connector – Structure surrounding optical fiber-to-fiber connection
Patent
1998-10-02
2000-10-31
Palmer, Phan T. H.
Optical waveguides
With disengagable mechanical connector
Structure surrounding optical fiber-to-fiber connection
385 54, 385 59, G02B 638
Patent
active
06139193&
DESCRIPTION:
BRIEF SUMMARY
FIELD OF THE INVENTION
The present invention generally relates to a device for connecting multiwire cables.
BACKGROUND OF THE INVENTION
Such devices are used to ensure join of cables disposed one after the other so as to connect two points of a line, even ones which are very remote. These devices are employed for all types of coaxial or optical cables, for example made of copper.
The connecting device according to the invention is more particularly, but not exclusively, intended for connecting multiwire optical cables for which it is necessary to observe particular wiring rules due to the fragility of the optical fibers composing them, to the reserve of optical fibers, to the respect of the minimum radii of curvature, etc . . . .
Multiwire cables are composed of a plurality of wires, copper wire or optical fiber for example, each transmitting information, data or current. The connection of two multiwire cables requires the connection of each wire of the upstream cable to a corresponding wire of the downstream cable.
Such a connecting device may, in manner known per se, ensure connection of a plurality of cables disposed upstream to a plurality of cables disposed downstream, the total number of the wires presented upstream having to be equal to the total number of the wires presented downstream.
The connection of these wires is effected by connection means of any type known per se, for example by a splice or a connector.
SUMMARY OF THE INVENTION
The connection of the optical cables is generally effected at the present time with the aid of devices comprising elements, called coiling cassettes, disposed side by side. Each coiling cassette ensures coiling and connection of one or more optical fibers of the optical cables upstream and downstream.
The coiling cassettes are mounted to move in rotation about an axis in order to allow the user to displace them like the pages of a book to have access to the cassette containing the fiber or fibers on which he wishes to intervene.
These devices are fastidious and slow to use since it is necessary upon each intervention to pivot the cassettes one by one to render the cassette containing the sought after fiber or fibers accessible.
Moreover, these devices present the drawback of requiring the fibers to be cut to largely different lengths, varying as a function of the position of the cassette on which they are taken over.
One can also cite document DE-A-3627599 which concerns a connection device for two high-voltage electrical cables, and the core of which is constituted by a plurality of wires. These wires are interconnected, without being separated or spaced apart, by means of a crimp connection. In contrast, the shielding wires of this cable are connected to each other individually by means of separate connectors. They are maintained in a separated apart and parallel position in relation to each other by support and spacing elements. In such a device, the conductive wires per se are connected by a central crimp connector, without any lateral spacing apart or separation.
The invention proposes to overcome the different drawbacks of the known devices by providing a connecting device of reduced dimensions which is particularly easy to use.
To that end, the invention relates to a device for connecting at least two multiwire cables, in which each wire of a cable disposed upstream is connected to a wire of a cable disposed downstream by a connecting means, for example a splice or a connector, characterized in that: cables to be connected, symmetrical manner and substantially on the same axis as said drum, for positioning said connection means, of the drum, either by rotation means supporting this drum or by at least one ring mounted in rotation in relation to the drum, disposed in a connection means borne by the drum, form on either side of the drum two conical laps of wires having a securing means for focus, and that these connection means are accessible the one after the other by simple rotation of their positioning means about the axis of the drum, and that these
REFERENCES:
patent: 5444810 (1995-08-01), Szegda
Gilly Richard P.
Palmer Phan T. H.
Pouyet S.A.
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