Electrical connectors – Coupling part including flexing insulation – Sealing
Patent
1993-08-23
1995-07-25
Paumen, Gary F.
Electrical connectors
Coupling part including flexing insulation
Sealing
439320, 439584, H01R 13621
Patent
active
054357519
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention relates to a device for connecting a coaxial cable end to a socket, and also for connecting a coaxial cable end, that is provided with a coaxial cable plug at its end, to a contact socket that at least partially covers the plug. The device preferably also provides a sealed and strain relieved connection.
Various methods and devices are known for connecting coaxial cable ends to sockets, either for connecting coaxial cable ends to each other or for introducing coaxial cables into sockets in housings. In these known methods and devices efforts are made not only to ensure the electrical connection, but also to make the connection point as secure as possible. The known methods and devices for connecting coaxial cable ends to sockets include methods and devices in which the coaxial cables are provided at their ends with coaxial cable end-plugs. These end-plugs have standard sized outer dimensions which enable standard sized sockets to accommodate a variety of different diameters of coaxial cables, since the plugs can than be used to make a connection between coaxial cables of different diameters on which they are placed and a corresponding counter-element in a contact socket of standard size. The contact socket for the coaxial cable or end-plug may be provided either at another cable end or in a housing such as a distribution box or the like.
As examples of the known methods and devices, there may be mentioned EP-0 023 880-A1, DE-22 38 267-C3, DE-23 25 123-B2, DE-31 41 966A1, DE-32 30 473-A, DE-35 11 039-A1 or DE-35 12 952-A1 of the Applicant.
Connection plugs for coaxial cables are also disclosed, for example, in DE-84 07 987-U1, DE-84 24 169-U1 or DE-82 19 184 of the Applicant, the latter disclosing, as does U.S. Pat. No. 4,151,364, a double-action coupling element for the direct connection of two cable ends.
It is also known to provide seals in the connection region of coaxial cables. DE-36 07 451-A1 of the Applicant, for example, discloses a coaxial cable end-plug in the form of connection body which can be placed over the coaxial cable end. The connection body is provided with an outer seal for resting against the inner surface of a socket piece to which the coaxial cable is to be connected, and an inner seal for resting against an inserted coaxial cable.
SUMMARY OF THE INVENTION
The present invention addresses the problem of making a universal connection for a coaxial cable-end to a contact socket, in which connection cable-end plugs may or may not be used, while ensuring that an excellent seal and also some strain relief are achieved in the completed connection.
A first aspect of the present invention provides a device for connecting a cut-back coaxial cable to a contact socket into which the coaxial cable is inserted, the device comprising: the contact socket; the contact socket and the end of the cut-back insulation on the coaxial cable and contact with the inner surface of the further contact element and the outer surface of the inserted coaxial cable.
As used herein, the term a "cut-back coaxial cable" means a cable bared in the known standard way for connection to a contact socket or to another cable. A coaxial cable comprises an outer insulating jacket, an outer conductor, an intermediate insulating layer and an inner conductor. In a cut-back coaxial cable bared in the standard way, each of the layers surrounding the inner conductor is cut back increasingly larger distances from the end of the cable, to reveal a section of the layer underneath it. Thus a stepped configuration results in which the outer insulation jacket is cut back the furthest, and the inner insulating jacket the least.
The invention also provides a method of connecting a cut-back coaxial cable to a contact socket into which the coaxial cable is inserted, using a device according to the invention, the method comprising: to deform the seal between the inner surface of the further contact element and the outer surface of the inserted coaxial cable.
Preferably the cut back coaxial cable e
REFERENCES:
patent: 2955388 (1961-08-01), Morello, Jr. et al.
patent: 2986720 (1961-05-01), Chess
patent: 3706958 (1972-12-01), Blanchenot
patent: 3761870 (1973-09-01), Drezin et al.
patent: 3936124 (1976-02-01), Tuttle et al.
patent: 3985950 (1976-10-01), Maltz
patent: 4151364 (1979-04-01), Ellis
French Article, "La Paire Coaxiale de 7/27 mm" by Cazauk et al.
Feiler Gerhard
Papenheim Friedbert
Burkard Herbert G.
Paumen Gary F.
Raychem GmbH
Zahrt II William D.
Zavell A. Stephen
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