DE60009059T2 - DEVICE FOR SHIELDED CABLE CONNECTION AND METHOD FOR CONNECTING A COAXIAL CABLE - Google Patents

Abstract

A device is described, for the screened connection of at least a screened cable (4), in particular a coaxial cable, comprising at least two conductors (4A, 4C) for carrying video and/or audio and/or data signals, said device comprising a body (2) to which a connection element (7) is associated, being in contact with said cable (4) and capable of movement with respect to said body (2), where fixing means (5, 6) are provided for locking said connection element (7) to said body (2). According to the invention, following a movement of said connection element (7) with respect to said body (2), in particular imparted through said fixing means (5, 6), said connection element (7) is capable of changing its own configuration with respect to said cable (4), in order to obtain a mechanical and/or electric coupling between said cable (4) and said connection element (7).

Description

The The present invention relates to a device for the shielded Connection of cables, in particular coaxial cables, and a method for connecting a coaxial cable.

It is currently known that in addition to the conventional sockets for terrestrial TV signals, usually of the so-called IEC type, also the sockets for satellite television signals, commonly known as F-type sockets, increasingly used become; in this context it is known that the significant Advantages offered by digital television, both now as well as in the near future, to a rapidly increasing one Spread of these signals in private households will result.

The two listed Types of sockets differ in their frequency operating range; while the IEC sockets are suitable for receiving analog signals in the frequency domain that is between 40 and 860 MHz the sockets for the satellite television signals typically from 40 to 2150 MHz, with both analog and digital signals.

modulations that are used in digital television, that is QPSK (Quadrature Phase Shift Keying), QAM (Quadrature Amplitude Modulation) and OFDM (Orthogonal Frequency Division Multiplexing), bring the Need for more Care with the manufacture of the bushings with itself. In particular the shielding and the impedance matching, which are already for analog Signals are important when working with digital signals indispensable, both for signals from satellites and those terrestrial origin provided by cable.

A Good shielding is indeed necessary to avoid external noise or interference the digital signals overlap, which are generally lower in level than analog signals. Moreover is an imbalance mismatch, that is, a high "return loss" that is a relationship between the characteristic impedance of the coaxial cable that normally for the Dissemination of television signals is used, and the impedance, which results from the cable distortion, where the Cable distortion malfunction of the receiver of the digital signals will cause. Obviously, the above is true independently on the type of information contained in the digital signal is, and therefore not only for Television signals (video plus audio) but also for pure audio signals and data signals, like it for typical multimedia systems apply.

• – Mischbucuhsen, welche die Signale ausgeben, die von mehreren Koaxialkabeln kommen;
• – Ableitungsbuchsen, die entlang der Leitung eines Koaxialkabels eingerichtet sind, das zur Verteilung der Signale an verschiedene Buchsen vorgesehen ist;
• – Anschlussbuchsen, in denen das Koaxialkabel mit der typischen Impedanz des Verbrauchers angeschlossen ist;
• – Entmischungsbuchsen, in denen die Eingangssignale verschiedener Frequenzbereiche durch geeignete und bekannte Stromkreise getrennt werden, um zu mehreren Ausgangsbuchsen zugeführt zu werden, wobei jede von ihnen Signale zuführt, die in einem bestimmten Bereich enthalten sind, so wie eine erste Buchse mit Signalen bis zu 900 MHz und eine zweite Buchse mit Signalen von 900 bis 2150 MHz.

It is also known that television signal jacks can be of different types depending on their particular function; in particular:

• - Mixed busses which output the signals coming from several coaxial cables;
• - Derivation sockets, which are arranged along the line of a coaxial cable, which is provided for distributing the signals to different sockets;
• - Connection sockets in which the coaxial cable is connected with the typical impedance of the consumer;
• - Isolation sockets in which the input signals of different frequency ranges are separated by suitable and known circuits in order to be fed to several output sockets, each of which feeds signals contained in a certain range, such as a first socket with signals up to 900 MHz and a second socket with signals from 900 to 2150 MHz.

Television signal sockets according to the state of the Technology is independent on their type and / or the fact that they are for receiving analog or digital signals are provided, usually from Installation type, that is inserted in a housing recessed in the wall and with screws attached by a suitable frame.

On or several coaxial cables reach the housing through a suitable channeling; in the case of a connection socket, the cables end within the socket, while in the other cases exit the jack to feed the signals to other jacks.

During the Every coaxial cable that is connected to the socket is installed should be pulled out of the corresponding recessed in the wall and "exposed," that is, a couple Centimeters of the cable sheath, which protects its braid, and of the insulating material or dielectric that protects the inner conductor away.

Then the cable is connected to the socket, usually through the Fastening the inner conductor with a screw and the ground braid with a screwed U-bolt; it should be noted that the use of screws according to the state the technology is necessary to both the electrical connection as well as to ensure the mechanical strength of the cable-socket connection. Finally becomes the socket in the housing with the above Frame fixed by screws.

The Operations described above for connecting the cable with the jack can cause electrical problems like the defective shielding of the connection of the inner conductor or the Impedance mismatch due to cable twist or deformation, this means Koaxialitätsverlust, the U-bolt should be over tightened become.

The Situation worsens further after inserting the socket into the case the corresponding connections have been made.

It In this regard, it should be noted that the execution of the Connections are usually a very uncomfortable job for the installer since the sockets are generally a few inches above the Floor are set up; in order to simplify the work, the Installer consequently, from the sewer or pipe one pull out longer cable length, than strictly necessary.

To the time at which the socket is inserted into the housing and in the housing for disposal standing space is quite limited, the shielded cable is however usually Subject to further deformation, bending and pressing due to its narrow radius ", thereby amplifying the impedance mismatch and often an unacceptable one Deterioration of the signals is caused.

It is understandable that the negative consequences of the above Problems that are already significant in the case of bushings that for receiving analog signals are provided at the Sockets provided for receiving digital signals become considerable reinforced are.

From the documents IT-B-1287047 and IT-B-1289463 a signal socket for two coaxial cables is known which comprises a socket body which is formed from electrically conductive material and in which there is a housing which is suitable for accommodating a sliding element or sliding carrier; the bottom wall of the aforementioned housing defines two hollow truncated cone protrusions, each of which has an axial passage with a diameter on the order of the diameter of the dielectric of a standard coaxial cable.

According to the solution that is described in the above documents to the shielded Providing connection will be the end of everyone to be connected Cable into the axial cavity of the corresponding truncated cone projection introduced, from the tip end of the latter; in this way the End portion of the dielectric enter the axial cavity while the sharp edge of the truncated cone projection between the dielectric and can penetrate the cable braid, which is an enlargement of the Braid itself caused on the outer surface of the Projection is at rest.

On At this point the slide carrier can be equipped with axial passages which have a portion of a truncated cone part similar to that of said projections, fixed by tightening a screw in its corresponding housing become; in this way, the pressure of the slide carrier causes the protrusion, with the braid and outer cable sheath in between, a mechanical locking of the cable itself and the contact between the Braid and the socket body, the one made of electrically conductive Material is formed.

Also the solution, described in the aforementioned documents however some drawbacks.

On first disadvantage is due to the fact that the braid of the connecting cable and its outer cable jacket be subjected to mechanical deformation with effort have to, to them on surfaces of the socket body adapt; the installer has difficulty with this process to control, also considering the small size of the jack and its in usually uncomfortable location, that is a few inches above the Ground; in this context it should be borne in mind that the Installer must keep the cable under pressure towards the Inside the socket, even while the fastening phase of the slide carrier. It is also stated that some coaxial cables usually have a banding is made of aluminum and between the ground braid and the corresponding dielectric is arranged; but now, due to the small thickness of the banding, some parts of it penetrate into the cavity of the projection and so the connection processes influence negatively.

Additionally points the above solution poor flexibility on since it is the essential match the diameter of the axial passage of the above Truncated cone projection with the diameter of the dielectric requires the cable to be connected; therefore appears in this Framework this solution to use for Cables with different cross sections are not suitable.

Furthermore, the mechanical fastening method described is the subject of possible danger that the cable is pulled out of the socket, the cable should be pulled out unintentionally.

On Another disadvantage of those described in the above documents solution consists in the complicated and inconvenient connection processes, in the case of sockets intended to accommodate two cables are (double sockets); given the fact that the final connection is achieved by fixing a single slide carrier, the Installer face the problem manually hold both cables in their correct connection position, before moving the slide sets itself.

From the DE-A-24 05 885 on which the preamble of claims 1 and 23 is based, there is known a device for shielded connection of a coaxial cable, comprising a body defining a housing in which a connecting element and a screw nut are inserted for fixing the connecting element inside the housing; the connection element comprises flexible wings which are elastically deformable for connection to a first front region of the cable end, and a funnel-shaped section, the lower edge of which is in a bent state in order to mechanically connect to a rear region of the cable end.

in view of of the above, it is a first object of the present Invention, a device for the shielded connection of cables, especially coaxial cables, to demonstrate that a mechanical and / or electrical connection in in a quick, convenient and safe way, without the use of u-bolts, and which the number of screwing operations on reduced to a minimum to ensure effective shielding and possible Avoid risks of impedance mismatch.

On Another object of the present invention is to provide a connection device of the type mentioned to imagine, during which its mechanical and electrical connection are not essential mechanical deformations on the cable.

On Another object of the present invention is to provide a connection device of the type mentioned imagine the for Cable independent of which can be used whether this for signals of the analog type and / or signals of the digital type are provided.

On Another object of the present invention is to provide a connection device of the type mentioned imagine the for Different types of cables can be used even if these have different cross sections.

On Another object of the present invention is to provide a connection device of the type mentioned imagine the dangers of detachment and disconnection due to of unwanted pulling on the cable can be reduced to a minimum.

On or more of the above objectives are accomplished according to the present Invention achieved by a device for the shielded connection of cables, in particular coaxial cables, and a method for connecting a coaxial cable which has the characteristic features, those in the attached claims 1 and 23, which are an integral part form the present description.

Further Goals, characteristics and advantages of the present invention will become more apparent from the following detailed Description and the attached Illustrations provided as non-limiting examples become. Show it:

1 is a schematic front view of a first signal socket, in a first possible embodiment of the present invention;

2 a longitudinal section of the signal socket, which in 1 is shown;

3 an enlarged detail of 2 ;

4 several views of a possible embodiment of a first element that is able to move the bushing, which in the 1 to 3 is shown;

5 several views of a possible embodiment of a second element, which is able to move the bushing, which in the 1 to 3 is shown;

6 a schematic view of a second signal socket, in a second possible embodiment of the present invention;

7 a possible variant of the use of the present invention, by a cut that is the same as the cut of 3 is.

Referring to 1 indicates the reference symbol 1 a signal socket as a whole, according to the teaching of the present invention: in the special case the socket 1 of the shielded and modular built-in type, that is to say it consists of a plurality of elements which are connected to one another and are intended to be integrated in one suitable installation housing of the known type to be accommodated.

The socket 1 comprises a main body or shielding body, designated by the reference numeral 2 and a general coaxial connector, identified as a whole by the reference numeral 3 characterized in that it is provided to receive a corresponding coaxial connector (not shown) for the reception of signals by a user device (such as a television receiver, a satellite receiver for digital signals, a multimedia device etc.); the coaxial connector 3 consists in a known manner of an inner conductor 3A and an outer conductor 3B , with a suitable insulating material in between 3C ,

reference numeral 4 identifies a shielded cable of the coaxial type that connects to the body 2 is connected where it connects to the coaxial connector 3 is electrically connected.

In 2 becomes the jack 1 shown with a longitudinal section; for the sake of clarity 3 . 4 and 5 some elements of the jack 1 that compared to 2 are shown oversized and are shown according to different views.

At one end of the body 2 the socket 1 , which is made of electrically conductive material, such as aluminum or die-cast zamak (Zn + Al + Mg alloy), a housing AA is defined that is suitable for a component 5 take.

The component 5 , which is further equated with the slide carrier, is able to slide inside the housing AA and is in 4 shown in detail; this slide bracket 5 can be made of either electrically conductive material, such as die-cast zamak or aluminum, or non-conductive material, such as plastic.

In the in 4 The example shown is the slide carrier 5 essentially of two tube sections of different length and diameter, which have an overlapped and interconnected state. A thread cavity 5A is defined in the longer section that begins with 5 ' is marked, which is suitable for receiving a fastening screw, which in the 2 and 3 with reference numerals 6 is marked, the function of which will be explained later; in the shorter tube section, identified by reference numerals 5 ' , a main cavity is defined, which in 4 with reference numerals 5B is marked; this main cavity 5B is suitable to the cable 4 and to take up a connecting element, which is later equated with a gripping basket, which in 5 is shown in detail. The screw 6 of 2 and 3 is suitable to in one pass 2A to be introduced into the main body 2 is available; the passage 2A results from the alignment on the thread cavity mentioned above 5A of the slide carrier 5 when the latter is inserted into the housing AA and moves away from the end of the body 2 , towards the end in which the housing AA is defined; like in the 2 and 3 shown, the screw provides 6 for the mechanical connection between the shielding body 2 and the slide bracket 5 ,

In 5 becomes the gripping basket 7 shown according to several views.

The basket 7 is made of mechanically elastic and electrically conductive material, such as phosphor bronze or beryllium copper, for example with a thickness of 0.4 mm.

The basket 7 includes a tube section 7A , from which a first group of six elastic wings moves away, which are identified by the reference symbol 7B Marked are; the basket 7 also has a second group of six elastic wings, designated by reference numerals 7C are marked, which are longer than the previous ones and which are arranged alternately with them; their mode of operation is described below.

The wings 7B have a substantially straight state and their free ends 7B 'are towards the inside of the basket 7 curved; the longer wings 7C exhibit a first curvature 7C 'towards the inside of the basket 7 on, just a little above the area where the ends 7B ' the wing 7B are arranged, and a second curvature 7C "towards the outside of the basket itself. As can be seen, the shape of the wings thus forms 7C a kind of funnel or volume reduction section of the axial passage that is inside the basket 7 is arranged.

The basket 7 has some hook projections 7D on its tube section 7A on; these ledges 7D are used for mechanical connection or attachment of the basket 7 inside the main cavity 5B of the slide carrier 5 used; for this purpose the slide carrier 5 matching cavities, one of which has the reference symbol 5C on the right part of the 4 can be seen, these being suitable for the above-mentioned projections 7D of the basket 7 record and secure.

As in 3 it can be seen, in a first possible use of the connecting device according to the invention, the inner passage of the basket 7 particularly suitable, the coaxial cable 4 from the side of the tube section 7A from, which - as described below - is prepared accordingly; the cable 4 will be in the basket 7 introduced to create a section of the braid 4A the same cable on the usually dielectric material, identified by reference numerals 4B , expands (after all, the cable 4 be of the type that has an aluminum banding between the braid 4A and the dielectric 4B providing).

Following this insertion is the end section of the cable 4 (that is, the section that is the end of the dielectric material 4B , the end of the braid 4A and the end of the inner conductor of the cable leads in 3 with reference numerals 4C marked) from the end of the basket 7 that opposite the tube section 7A is arranged protrude, that is, from the end through the free ends of the longer wings 7C is defined.

As in 3 can also be seen, following the insertion mentioned above, see the shorter wings 7B of the basket 7 their flexible engagement with the outer cable jacket of the cable 4 before, marked with reference numerals 4D while the longer wings 7C , in line with their curvature 7C " , a flexible push on the dielectric 4B of the cable with the braid in between 4A and the probably intended aluminum banding.

In the 2 and 3 indicates the reference symbol 8th a conductor element which is used to transmit the signal from the inner conductor 4C of the cable 4 to the inner conductor 3A of the connecting element 3 is provided; reference numeral 9 indicates electrical insulation around the conductor element 8th is arranged around.

One end of the conductor element 8th defines, in a known manner, a contact suitable for the end of the inner conductor 4C of the cable 4 record and flexibly secure; this contact can be of the quick coupling spring type, for example, identified by reference numerals 8A in 3 ; in the given example are the conductor element 8th and the contact 8A Made in one piece, but they can also be made in separate parts that are put together, for example by welding.

In contrast, the other end of the conductor element 8th with a conduction path 8B connected by an insulation support 10 worn, visible in 2 that in the body 2 is arranged and consists for example of a printed circuit; the conduction path 8B the insulation support 10 is against the inner conductor 3A of the connecting element 3 connected, especially by welding.

It will be seen that components for electrical coupling or decoupling finally also on the insulating support 10 can be attached, the socket according to the invention should be a mixing socket or separation socket.

As mentioned above, the connection between the inner conductor 4C of the cable 4 and the conductor element 8th be of the quick coupling spring type, which means that it does not require fastening screws; as further shown, the mechanical strength of the connection between the cable is actually 4 and the socket 1 guaranteed according to the present invention in a different way. Finally, in 3 with reference numerals 11 a cavity marked inside the socket 1 is defined, which is from the housing AA in the direction of the conductor element 8th extends; this cavity 11 is suitable to a section of the basket 7 record that comes out of the slide 5 extends out, and in particular the portion of the basket 7 record that over the curvature 7C ' the wing 7C extends.

It should be noted that a volume reduction section is identified by reference numerals 11A , the operation of which is illustrated below, between the housing AA and the cavity 11 is defined; furthermore, receptacles, which are not shown in the figures, are essentially defined in this area, on the inner surface of the housing AA and the cavity 11 in which the wings 7C are suitable to be inserted.

The Operation of the socket according to the present Invention will now refer to the operations of its preparation and described their installation.

First the installer of the socket 1 a small section of the cable 4 pull out of the sewer system or tube - not shown in the figure - in which the cable is inserted. Then the cable 4 at its end part, marked with X + Y in 3 , about two centimeters in length, by removing a portion of its outer cable jacket 4D exposed; then in part X of the cable 4 a section of the inner conductor 4C exposed to a length of about 1 cm by removing an equal section of the braid 4A and the dielectric material 4B (and the likely intended aluminum banding); consequently, the remaining bare section of the braid remains 4A with the aluminum band probably provided, on most of the remaining dielectric material 4B extending that in the Part Y of the cable 4 is arranged.

• – dass der Korb 7 bereits in den Haupthohlraum 5A des Gleitträgers 5 eingeführt ist; wie vorstehend angeführt, wird die mechanische Verbindung zwischen dem Korb 7 und dem Gleitträger 5 erzielt, indem die Vorsprünge 7D des Ersteren veranlasst werden, in die passenden Hohlräume 5C des Letzteren einzugreifen; es ist offensichtlich, dass andere bekannte Verfahren zum Erzielen einer Kopplung zwischen den Teilen 7 und 5 möglich sind;
• – dass die Gleitträger 5 – Korb 7 – Vorrichtung bereits in das Gehäuse AA und den Hohlraum 11 eingeführt ist, wobei beide in dem Abschirmkörper 2 in einem vorläufig mechanisch festgezogenem Zustand vorgesehen sind; dieses wird im Wesentlichen mittels einer teilweisen Verschraubung erzielt, das heißt mit nur ein paar Umdrehungen der Schraube 6 in den mit Gewinde ausgestatteten Hohlraum 5B des Gleitträgers 5, durch den passenden Durchgang 2A, der in dem Abschirmkörper 2 vorgesehen ist.

It should be noted that at this point the installer already has a pre-assembled bushing that was supplied by the production company, for example; Such a pre-assembly of the socket includes in particular:

• - that the basket 7 already in the main cavity 5A of the slide carrier 5 is introduced; as stated above, the mechanical connection between the basket 7 and the slide bracket 5 achieved by the tabs 7D of the former are induced into the appropriate cavities 5C to intervene with the latter; it is evident that other known methods of achieving coupling between the parts 7 and 5 possible are;
• - that the slide bracket 5 - Basket 7 - Device already in the housing AA and the cavity 11 is introduced, both in the shielding body 2 are provided in a provisionally mechanically tightened condition; This is essentially achieved by means of a partial screw connection, that is to say with only a few turns of the screw 6 into the threaded cavity 5B of the slide carrier 5 , through the appropriate passage 2A that in the shield body 2 is provided.

As a result, the installer in charge of the connection needs the cable 4 exposed as described above, simply down to the bottom in the basket 7 introduce.

At this stage the wings can 7C of the basket 7 because of their flexibility spread to the section of the dielectric 4B to allow the braid 4 A to hold from the outside to slide; the special "funnel" curvature of the group of wings 7C the dielectric becomes suitable 4B lead, and in this way the penetration of the inner conductor 4C in the appropriate spring contact 8A to simplify to achieve the appropriate electrical connection.

During this phase of insertion, the wings can also become 7B of the basket and the uncovered section of the cable 4 allow to pass through; the wing tips 7B 'can on the outer cable jacket 4D rest of the cable itself.

Finally, the installer turns the screw 6 tighten.

The linear movement of the slide carrier basket structure, due to this screw connection, results in an increasing overlay of the wings 7B with the volume reduction section 11A of the shielding body 2 cause; therefore the wings 7B crowded in such a way that they curve or bend towards the inside, so that their ends 7B '' firmly on the cable sheath 4D pressed condition, thus ensuring a good mechanical connection.

This pressing results in being flat on the circumference of the cable 4 to be arranged so that noticeable twists of the dielectric 4B be prevented while the coaxiality of the cable 4 is maintained; in contrast, according to the invention, it is the connecting element that emerges from the basket 7 which has changed its structure to accommodate the cable 4 adapt.

In order for the above-mentioned superposition to occur, it is obviously necessary that the slide carrier 5 integral with the implementation 7 shorter than the wings 7B is.

Because of the shape and slope of the ends 7B 'every attempt, the cable 4 from the socket 1 pulling out cause the pressure of the wings 7B on the cable jacket 4D reinforced, which is all the more reason to prevent the cable from emerging from the socket.

As mentioned above, the wings are 7B preferably provided in a number of six; also the longer wings 7C are preferably provided in a number of six and can slide with a certain overlap in the receptacles, which on the surface of the housing AA and the cavity 11 are defined, that is, on the surfaces of the shielding body 2 ; there the wings 7C are made of mechanically elastic and electrically conductive material, is therefore a good electrical contact between the basket 7 and the body 2 ensured.

As can be seen, therefore, represents a simple process of inserting the cable 4 and just a simple screwing of the screw 6 at the same time both a stable mechanical connection between the socket 1 and the cable 4 sure, as well as a good electrical connection between the braid 4A and the shielding body 2 , by the elastic pressing that by the wings 7C is exercised.

Obviously the cable can 4 if necessary from the socket 1 can be pulled out by simply loosening the screw 6 and pulling out the cable towards the outside.

Once the above process is done, so does the electrical and mechanical connections for the conductors 4A and 4C the socket 1 inserted into the appropriate wall socket and fastened there the.

From the foregoing, it has become clear how no ground U-bolts are necessary in accordance with the present invention and, consequently, the risk of cable compression 4 and a consequent impedance mismatch due to loss of coaxiality. The integral closure between the cable is correspondingly 4 and the socket 1 , as well as the connection between the inner conductor 4C and the bushing, achieved with only one screwing operation, without the need to handle different components at the same time, and also without producing mechanical deformation of parts of the element 4 , like its braid or outer cable jacket, as in the case of IT-B-1287047 and IT-B-1289463 ; as a result, the work of the installer is considerably simplified.

Since no U-bolts are necessary and the only screwing operation required is carried out in a simple manner, the preparation of the socket according to the invention can be done by pulling out only a minimal length of cable 4 out of its channeling or tube, so that when the socket is inserted into the corresponding housing, any further bending and / or pressing of the cable is further reduced.

It is also apparent from the above that it is also clear how the quality of the connection between the cable 4 and the socket is secured at all times, as it is practically independent of the installer's expertise.

Correspondingly, according to the present invention, the shielding of the connection of the inner conductor is 4C of the cable 4 at any time by means of the shielding body 2 secured, the latter being formed from conductive material which completely envelops all electrical parts.

Further it can also be seen from the above how the socket according to the present Invention for the connection with cables that transmit analog signals or cables that transmit digital signals, can be used indifferently while all the advantages listed above in both cases are ensured.

It is also clear how the basket 7 in particular, due to its elastic structure, allows the use of cables having different outer diameters, such as in a range of 5 mm to 7 mm, as may be the case.

In the 1 . 2 and 3 became a jack 1 shown, for the sake of simplicity only with a coaxial cable 4 is connected, the socket 1 just a single connector 3 to receive the output signal; however, it is clear that the present invention can also easily be extended to sockets which are connected to a plurality of cables, which are also intended for transmitting different types of signals and which are equipped with one or more outputs, as in FIG 6 shown.

This figure shows a schematic view of a socket 1A from below (referring to a view of the type shown in 1 ) which is intended to receive two coaxial cables which are suitable for transmitting signals of different types and which has on its front side one or more connecting elements, such as those with reference numerals above 3 marked (a single one of these is in 6 to see); in this figure, the same reference numerals from the previous figures are used in part to identify technically corresponding elements; for the sake of clarity, the cables are in 6 not shown.

• – ein Gleitträger 5 mit einem entsprechenden Gehäuse AA innerhalb des Abschirmkörpers 2,
• – ein Korb 7 mit einem entsprechenden Hohlraum 11 und einem Volumenverkleinerungsabschnitt 11A innerhalb des Abschirmkörpers 2,
• – eine Befestigungsschraube 6.

In the case of the double socket 1A , in the 6 the following elements are therefore provided for each cable:

• - a slide bracket 5 with a corresponding housing AA inside the shielding body 2 .
• - a basket 7 with an appropriate cavity 11 and a volume reduction section 11A inside the shielding body 2 .
• - a fastening screw 6 ,

As can be seen, the connection of each cable to the socket can be made in this case 1A can be carried out independently of one another, whereby the assembly is considerably simplified compared to the current state of the art.

The general structure, which in 6 can also be used for sockets of other different types (such as through sockets, mixing sockets, demixing sockets) and it is clear that according to the effect exerted by the socket, the socket has one or more connecting elements 3 can have; Accordingly, in accordance with the effect exerted by the socket, the socket is provided with suitable insulating material, connecting means and / or circuit means, in order to carry out the appropriate transmission and / or processing of the signal or signals intended for the connection or connections provided by the Socket are provided.

It is understandable that the operations to prepare the connection and the assembly of the socket according to the invention, which in 6 is the same as that described above with reference to FIG 2 and 3 have been described.

By The foregoing description will be the characteristics of the present Invention clearly.

In particular, there has been a device for the shielded connection of at least one cable 4 described which has at least two conductors 4A and 4C for transmission of video and / or audio and / or data signals; the device 1 includes a body 2 with which a connecting element 7 which is in contact with the cable 4 stands and is capable of relating to the body 2 to move, using fasteners 5 and 6 for fastening the connecting element 7 are provided on the body.

According to the invention is the connecting element 7 capable of its own structure related to the cable 4 to change, and not vice versa, to provide a mechanical and / or electrical coupling between the cable 4 and the connecting element 7 perform; this is caused by following a movement of the connecting element 7 in relation to the body 2 achieved as by the fasteners 5 and 6 is transmitted.

• a) von einem Endabschnitt X + Y des Kabels 4 wird ein Teil eines ersten Isoliermaterials 4D entfernt, als Zugang zu einem ersten Leiter 4A des Kabels 4;
• b) von einem Teil X des Endabschnitts X + Y des Kabels 4 wird ferner ein Abschnitt des ersten Leiters 4A und ein Abschnitt eines zweiten Isolier materials 4B entfernt, als Zugang zu einem zweiten Leiter 4C des Kabels 4;
• c) die zwei Leiter 4A und 4C sind elektrisch mit der Vorrichtung 1 verbunden und das Kabel 4 ist mechanisch mit der Vorrichtung 1 verbunden.

Also a method for connecting a coaxial cable has been developed 4 with a connecting device 1 described in which the following steps are provided to the cable 4 with the device 1 connect to:

• a) from an end section X + Y of the cable 4 becomes part of a first insulating material 4D removed as access to a first ladder 4A of the cable 4 ;
• b) from a part X of the end section X + Y of the cable 4 also becomes a section of the first conductor 4A and a section of a second insulating material 4B removed as access to a second conductor 4C of the cable 4 ;
• c) the two conductors 4A and 4C are electrical with the device 1 connected and the cable 4 is mechanical with the device 1 connected.

• – das Verbinden des Kabels 4 mit einem Verbindungselement 7, das in einen Körper 2 der Vorrichtung 1 eingeführt ist und an diesem befestigt ist;
• – das Festlegen einer Bewegung des Verbindungselements 7 in Bezug zu dem Körper 2, um eine Veränderung in der Struktur des Verbindungselements 7 auf dem Kabel 4 zu erzeugen und die nicht umgekehrt geeignet ist, um Letzteres an der Vorrichtung 1 mechanisch zu sichern.

According to the method described, the mechanical connection of the cable 4 with the device 1 achieved by:

• - connecting the cable 4 with a connecting element 7 that in a body 2 the device 1 is inserted and attached to it;
• - Determining a movement of the connecting element 7 in relation to the body 2 to make a change in the structure of the connecting element 7 on the cable 4 to generate and which is not vice versa suitable to the latter on the device 1 mechanically secure.

• – ist die Abschirmung der Verbindung des Innenleiters 4C des Kabels 4 jederzeit durch den Abschirmkörper 2 sichergestellt, der aus leitfähigem Material gebildet ist und die Buchse vollständig umhüllt;
• – werden keine U-Bolzen benötigt, so dass das Kabel 4 nicht zusammengedrückt werden kann, und eine Impedanzfehlanpassung aufgrund des Verlustes an Koaxialität wird vermieden;
• – werden das integrale Befestigen des Kabels 4 mit der Buchse 1 und das Verbinden des Leiters 4A und 4C mit der Buchse 1 mit nur einem Schraubvorgang erzielt, so dass die Arbeit des Installateurs erheblich vereinfacht wird;
• – da keine U-Bolzen erforderlich sind, ist die Vorbereitung der Buchse gemäß der Erfindung durch das Herausziehen von nur einer minimalen Menge des Kabels 4 aus der Kanalisierung oder Röhre möglich, so dass ein Biegen und/oder Drücken des Kabels auf ein Minimum reduziert wird wenn die Buchse in das entsprechende Gehäuse eingeführt wird, wodurch außerdem Signalveränderungen vermieden werden;
• – erfordert das hierin beschriebene Verbindungssystem keine wesentlichen mechanischen Verformungen von Kabelteilen während der mechanischen und elektrischen Befestigung des Kabels;
• – kann die hierin beschriebene abgeschirmte Verbindung mit verschiedenen Typen von Kabeln verwendet werden, auch mit verschiedenen Querschnitten; dieses wird durch die Fähigkeit zur Verformung des Korbes 7 und insbesondere der Flügel 7B und/oder 7C gestattet, was die Verwendung von Kabeln mit verschiedenen Außendurchmessern gestattet, beispielsweise in einem Bereich von 5 mm bis 7 mm;
• – werden Gefahren des Loslösens und Trennens aufgrund von unerwünschtem Ziehen am Kabel vermindert, infolge der speziell geformten Enden 7B' der Flügel 7B;
• – ist die Befestigung von mehreren Kabeln im Falle von Mehrfachverbindungen einfacher.

As stated, further detailed features of the present invention are set out in the appended claims. From the description given, the advantages of the present invention are also clear. In particular:

• - is the shielding of the connection of the inner conductor 4C of the cable 4 at any time through the shielding body 2 ensured that is formed of conductive material and completely envelops the socket;
• - no U-bolts are required, so the cable 4 cannot be compressed, and impedance mismatch due to loss of coaxiality is avoided;
• - be integral fastening of the cable 4 with the socket 1 and connecting the conductor 4A and 4C with the socket 1 achieved with just one screwing operation, so that the work of the installer is considerably simplified;
• - Since no U-bolts are required, the preparation of the socket is according to the invention by pulling out only a minimal amount of the cable 4 possible from the duct or tube, so that bending and / or pressing of the cable is reduced to a minimum when the socket is inserted into the corresponding housing, which also avoids signal changes;
• The connection system described here does not require any significant mechanical deformation of cable parts during the mechanical and electrical fastening of the cable;
• The shielded connection described herein can be used with different types of cables, even with different cross sections; this is due to the ability to deform the basket 7 and especially the wing 7B and or 7C allowed, which allows the use of cables with different outside diameters, for example in a range from 5 mm to 7 mm;
• - Dangers of detachment and disconnection due to unwanted pulling on the cable are reduced due to the specially shaped ends 7B ' the wing 7B ;
• - The attachment of multiple cables is easier in the case of multiple connections.

Finally is an essential advantage of the present invention that the connection, the shielding and coaxiality of the cable essentially guaranteed at all times is independent from the expertise of the installer.

It is apparent that many changes will occur to those skilled in the art regarding the connector and by way of example The method described above are possible without departing from the spirit of novelty of the innovative idea, and it is also clear that in the practice of the invention, the components can often differ in shape and size from those described and by technically corresponding elements can be exchanged.

The Connection system which is the subject of the present invention can be used, for example, in devices which are suitable to connect two or more shielded cables together without every signal socket, but where good shielding is somehow required is, as in the case of frequency dividers, shunt devices and intermediate sockets for shielded cables, the video and / or Transmit audio and / or data signals.

In such a case, with reference to the 1 and 2 , the connecting element 3 omitted while the insulation support 10 for the electrical connection of the inner conductor 4C the cable will be used, finally by means of electrical components.

The structure of an example with special reference to 3 has been described, which leads to the braid 4A on the dielectric 4B of the cable 4 extends.

On the other hand, nothing prevents the braid from folding back 4A , that means over the cable jacket 4D ; such a change is in the different embodiment from 7 shown.

In this case, the function of the electrical connection between the body 2 and the braid 4A by means of the wings 7B scored the ends 7B '' have a dual function as a mechanical and electrical connection.

In this application, the cable with the above aluminum banding should be between the braid 4A and the dielectric 4B can be provided, which can somehow be left while they are on the dielectric 4B extends; so, in addition to the electrical connection between the braid 4A and the wings 7B , also the electrical connection between the sleeve and the wings 7C be guaranteed.

Another possible variant sees the execution of the slide carrier 5 and the basket 7 in a single part by, for example, forming the section 7A the basket with a side portion defining a threaded passage suitable for the screw 6 record; it is clear that in this case the number of components of the device can be reduced.

Finally is it is clear that the invention described above with reference to a socket even in the case of plugs for cables, especially the coaxial Type that can be used simply and usefully.

Claims (24)

Device for the shielded connection of at least one end of a shielded cable ( 4 ), in particular a coaxial cable, this having at least two conductors ( 4A . 4C ) for transmitting video and / or audio and / or data signals, the device ( 1 . 1A ) includes: - a body ( 2 ) with which a connecting element ( 7 ) is connected, the connecting element ( 7 ) at least partially in a first housing ( 11 ) that in the body ( 2 ) is inserted, the inner surface of the first housing ( 11 ) an intermediate narrowing ( 11A ) forms, - fasteners ( 5 . 6 ) for fixing the connecting element ( 7 ) in the first housing ( 11 ), the connecting element ( 7 ) is suitable, its configuration in relation to the cable ( 4 ) to change to a mechanical and / or electrical coupling between the cable ( 4 ) and the connecting element ( 7 ) with the connecting element ( 7 ) one or more first flexible sections ( 7C ) which have an elastically deformable state, for coupling to a first region or a surface of the end of the cable ( 4 ), characterized in that the connecting element ( 7 ) inside the first housing ( 11 ) is linearly displaceable around an outer surface of one or more second flexible sections ( 7B ) of the connecting element ( 7 ) to form with the intermediate narrowing ( 11A ) to overlay the connecting element (during the linear displacement 7 ) in an elastic manner with a second area or a surface of the end of the cable ( 4 ) mechanically couple, the linear displacement by tightening the fasteners ( 5 . 6 ) and a progressive elastic bending of the second flexible section ( 7B ) with a consequent, gradually increasing mechanical coupling of the connecting element ( 7 ) and the cable ( 4 ), whereby means ( 5 ) are provided to the connecting element ( 7 ) for linear sliding within the first housing ( 11 ), whereby the nature of the displacement, on which the degree of mechanical coupling depends, by tightening the fastening means ( 5 . 6 ) is adjustable. Device according to claim 1, characterized in that the means for forcing ( 5 ) on Closure element ( 5 ) which comprise part of the fastening means ( 5 . 6 ), the closure element ( 5 ) is forced to move linearly. Device according to claim 2, characterized in that the fastening means ( 5 . 6 ) Holder means ( 6 ) for fastening the closure element ( 5 ) on the body ( 2 ), the linear displacement of the connecting element ( 7 ) is determined by a linear movement caused by the holding means ( 6 ) to the closure element ( 5 ) is transmitted. Device according to claim 2, characterized in that the connecting element ( 7 ) to the locking element ( 5 ) is coupled and / or is formed integrally therewith. Apparatus according to claim 3, characterized in that the fastening means a screw ( 6 ) include. Device according to at least one of the preceding claims, characterized in that the closure element ( 5 ) is suitable, within a second housing (AA) which is in the body ( 2 ) is designed to slide. Device according to claim 1, characterized in that receiving devices on the inner surface of the first housing ( 11 ) are formed, wherein the first flexible sections ( 7C ) have a state suitable for insertion. Apparatus according to claim 1 or 7, characterized in that the first and second flexible sections a plurality of first and second evenly distributed wings or leaves ( 7B . 7C ) which have a passage for the cable ( 4 ) train. Device according to at least one of the preceding Expectations, characterized in that the passage is one for receiving Cable has a suitable condition that has different cross-sections and / or have a diameter. Device according to at least one of the preceding claims, characterized in that the first flexible sections or wings ( 7C ) have a suitable condition to resiliently apply to a portion of an insulating material ( 4B ) of the cable ( 4 ) with an inserted section of a first one of the conductors ( 4A ). Device according to at least one of the preceding claims, characterized in that the second flexible sections or wings ( 7B ) have a suitable condition to be elastic on an outer wrapping ( 4D ) of the cable ( 4 ) with the appropriate insertion of a first of the conductors ( 4A ). Device according to at least one of the preceding claims, characterized in that the first flexible sections or wings ( 7C ) have a longer state than the second flexible sections or wings ( 7B ). Device according to at least one of the preceding claims, characterized in that the first flexible sections or wings ( 7C ) with the second flexible sections or wings ( 7B ) alternate. Device according to at least one of the preceding claims, characterized in that the first flexible sections or wings ( 7C ) have an appropriate state to their configuration, the insertion of the cable ( 4 ) between them to change elastically in order to make an elastic coupling with the cable ( 4 ) to achieve. Device according to at least one of the preceding claims, characterized in that at least one coaxial connecting part ( 3 ) with the body ( 2 ) connected is. Device according to at least one of the preceding claims, characterized in that means ( 8th . 8A ) for the electrical connection of a second conductor ( 4C ) of the cable ( 4 ) are provided, the means at least one electrical connection element ( 8A ), which is capable, at least a portion of the second conductor ( 4C ) absorb and keep elastic. Device according to claim 2, characterized in that the closure element ( 5 ) a respective first deepening ( 5B ) which is suitable, a section ( 7A ) of the connecting element ( 7 ) with the first and second flexible sections ( 7B . 7C ) from the first specialization ( 5B ) extend out. Device according to at least one of the preceding claims, characterized in that the closure element ( 5 ) a second specialization ( 5A ) for receiving the fasteners or the screw ( 6 ). Device according to at least one of the preceding claims, characterized in that the second flexible sections or wings ( 7B ) an inclined end ( 7B ") and / or the first flexible sections or wings ( 7C ) at least two bends ( 7C ' 7C " ) exhibit. Device according to at least one of the before forthcoming claims, characterized in that the connecting element ( 7 ) is at least partially made of a mechanically elastic or electrically conductive material, such as phosphor bronze or beryllium copper. Device according to at least one of the preceding claims, characterized in that a number of connecting elements ( 7 ) is provided according to the number of cables to be connected ( 4 ). Device according to the preceding claim, characterized in that a number of closure elements ( 5 ) is provided according to the number of cables to be connected ( 4 ). Device according to at least one of the preceding Expectations, characterized in that it is a signal divider or a shunt device, or a plug or socket for shielded Cable is acting. Method of connecting a coaxial cable ( 4 ) with a connection device ( 1 ), whereby for the connection of the cable ( 4 ) with the device ( 1 ) the following steps are provided: a) removing part of a first insulating material ( 4D ) from a first area (X + Y) of one end of the cable ( 4 ) to a first leader ( 4A ) of the cable ( 4 ) Get access; b) further removing a portion of the first conductor ( 4A ) and a section of a second insulating material ( 4B ) from part (X) of the first area to a second conductor ( 4C ) of the cable ( 4 ) Get access; c) the electrical connection of the two conductors ( 4A . 4C ) with the device ( 1 ) and the mechanical connection of the cable ( 4 ) with the device ( 1 ) by means of a connection element ( 7 ), d) fastening the connecting element ( 7 ) on the body ( 2 ) the device by means of fastening means ( 6 . 7 ), characterized in that step c) is carried out by means of the following steps: - inserting the connecting element ( 7 ) in a housing ( 11 ) that in a body ( 2 ) the device ( 1 ) is trained; - inserting the end of the cable ( 4 ) in the connecting element ( 7 ), so that at least a first flexible section ( 7C ) of the connecting element ( 7 ) has an elastically coupled state with the first region (X + Y), - forcing the connecting element ( 7 ) for linear movement within the housing ( 11 ), - tightening the fasteners ( 6 ) to the connecting element ( 7 ) inside the housing ( 11 ) move linearly, and creating an overlay from an intermediate constriction ( 11A ) of the housing ( 11 ) and an outer surface of at least a second flexible portion ( 7B ) of the connecting element ( 7 ) to the connecting element ( 7 ) during its linear displacement with a second area of the end of the cable ( 4 ) mechanically couple in an elastic manner, - determining a progressive bending of the second flexible section ( 7B ) with a resulting, gradually strengthening mechanical coupling from the connecting element ( 7 ) and the cable ( 4 ), by the linear displacement and the superimposition, whereby the nature of the displacement, on which the degree of mechanical coupling depends, by tightening the fastening means ( 5 . 6 ) is adjustable.