DE2345342A1 - CABLE END ARRANGEMENT - Google Patents

Description

Cable miserable closure arrangement

The present invention relates to a cable termination assembly especially for a cable transmission system of one Community antenna system according to the preamble of the main claim.

In even more specific respects, the invention is concerned with a cable termination assembly that quickly attaches to a cable connector attached to a community antenna system and also can be quickly removed from this and is also able to prevent unauthorized use of the community antenna system to be avoided by third parties. Installation and removal of the termination assembly must be accomplished using a key-type Special tool, which is not readily available for the normal population.

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The invention is therefore particularly concerned with a special wrench type tool for use with a cable termination assembly from a community antenna system.

In a community television antenna system (CATV system), a central antenna is attached at some remote location, which is selected in such a way that good direct reception of the television signals is possible there. The signals are then Television receivers in a variety of homes, offices, etc. are supplied by means of a permanently installed coaxial cable. A fee is charged for authorization to connect a television to the coaxial cable.

The connection with the coaxial cable is usually 'on a or performed in two general locations, i.e. in one Multiple connection antenna distributor or a multiple junction box in a central location of a shared apartment or one Office center so that a large number of subscribers are served by the antenna. The connection with the coaxial cable In other cases, it can also be done on individual junction boxes, which are attached to the walls of different rooms in apartment buildings or the like are attached.

As the multiple or single junction boxes or antenna distributors Usually readily available to the general public, a person who has modest technical Features, using traditional, readily available tools with no payment required Subscription sum connect your television set to the coaxial cable. It would therefore be highly desirable to have such unauthorized use of a community antenna system Could prevent by unauthorized persons, which leads to the loss of revenue from the subscription.

It is therefore an object of the present invention to provide a cable termination assembly especially for a use; in a cable transmission system of a joint venture

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To bring order in the proposal, which offers security against unauthorized and fraudulent use.

This problem is solved by the subject matter of the main claim.

With the invention, one is protected against unauthorized access End closure created, which is not for the at a cable distributor of a community antenna system only by means of one Generally accessible special tool attached and from this can be removed again.

The present invention is therefore also based on the object of such a special tool for the operation of a To bring end closure arrangement of a shielded cable in proposal. This task is defined by the subject matter of the claim 2 solved.

With the invention, a tool is created which is able, with the application of a sufficient torque, to prevent unauthorized access to plug parts inside a shield to twist against each other and to bring them into locking connection with each other, so that a separation of the plug parts is prevented with conventional tools.

Special features of the invention are therefore to be seen in the fact that a cable termination arrangement that is resistant to unauthorized access is created, which is particularly suitable for use in a cable transmission system of a community antenna system suitable, which consists of an outer barrel or drumstick-like part, which is a female connector part encloses, which has a uniform terminating resistor formed therewith. A snap ring holds the female connector part inside the barrel or drum-like part. The female connector part is with the external thread a permanently attached cable connector engaged, what happens by means of a special tool that is inserted through an opening in the barrel or drum-like part

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to be led. When the female connector part is firmly attached to the external thread of the male connector part Cable connection is screwed, the barrel-like part can freely around the arrangement formed from the two connector parts and removal of the end cap assembly from the connector is not possible without the use of the special tool possible.

Further advantages and details of the present invention will become apparent from the accompanying drawings of a preferred from i uhrungsbeispieles visible. Show in it:

FIG. 1: a partially broken away perspective view the preferred embodiment of one according to the invention Cable termination arrangement;

Figure 2: a perspective view to explain the usual Connection of an antenna cable of a television set with a community antenna system cable connection on a multiple junction box, both a conventional cable termination arrangement, as well as the cable termination arrangement shown in Figure 1 are shown in the operating position;

Figure 3: the installation method of the cable termination assembly of Figure 1 on a community antenna system single junction box, how they can be attached, for example, to the inner wall of an apartment flat can;

FIG. 4: an exploded perspective view, partially broken away View of the cable termination assembly of Figure 1;

Figure 5 is a perspective view of the special inner female connector part of the assembly of the figures 1 to 4;

FIG. 6: a broken, partially exploded perspective View of a locking tool specifically designed for use with the cable termination assembly of Figures 1 to 4 is formed;

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and

7 and 8: sectional views to explain the mode of operation and the use of the tool from FIGS the cable termination arrangement of Figures 1 to 4,

The invention can be summarized as follows. A cable end closure arrangement is proposed, which offers protection against unauthorized use and which is particularly suitable for use in a cable transmission system a community antenna system is suitable. This cable transmission system includes a cable for transmission electrical signals, as well as a permanently attached cable connection, which has a first connector part of one from one Male connector part represents a screw connection formed by a female connector part. The end closure assembly includes the second connector part of this pair of connector parts and is provided with means for engaging an elongated Locking tool provided, which allows the plug parts to be screwed into a locking position. The second The plug part is received in an outer shielding part and is enclosed by it. The shielding part is with a Provided recess, which has such a shape and size that a free rotation of the shielding coaxially the pair of connector parts is possible. The assembly also includes means from the outside of the shield is inaccessible if the pair of connector parts are tightly connected to each other is connected to the second connector part. internally withhold the recess. Finally, the end closure assembly includes also means defining an access opening in the shield member for the locking tool, wherein this opening is fixed and designed such that it temporarily allows the insertion of an elongated drum-like Part of the tool for rotating the second εtacker part and allows it to be locked or unlocked from the first plug part.

The locking tool contains a hollow grip area with

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an elongated hollow, barrel or drum-like part, which extends from the grip area. The barrel-like one Part has at least one opening in its side wall near its end. The tool contains also an operating shaft part which is slidably received in the hollow barrel-like part and means for the movement of the operating shaft within the barrel-shaped To limit part between a retracted position and an extended position, as well as plug part engagement devices, which are operatively connected to the shaft inside the barrel-like part. The engagement devices are formed so that they extend outwardly through the opening in the barrel-like part and the plug part for the purpose Take rotation of the same when the operating shaft assumes its extended position, and that it is inside the barrel-like part and withdraw from engagement with the plug part when the operating shaft is retracted Position.

In the drawings, there is a preferred embodiment of the present Invention shown, which is to be understood by way of example and not restrictive. Figure 1 shows the assembled end closure assembly 26. It consists of a female plug part 11, which is inside the recess 12 is received by a shielding part 13. The lower edge 14 of the plug part 11 is with a Internal thread 15 provided. The upper area of the female connector part 11 is hollow and provided with slots 16, which come into engagement with a locking tool which can be inserted through a bore 17. That The plug part 11 is held back in the shield 13 by a snap ring or Seger ring 18 which is inserted in a recess in the lower end of the shield 13 is received. The top of the shield can be externally threaded Part .19 have, the purpose of which will become more apparent from the following description.

Figure 2 illustrates a typical junction box of one

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Cable transmission system in a community antenna system. Signals from the centrally located antenna of the community antenna system are transmitted via a coaxial cable 21 to various distribution boxes or junction boxes, which are in the of the Community antenna system covered area are distributed. The antenna distributor 22 shown in Figure 2 is with a Series of connectors 23, 23a, 23b, 23c, which are used for connecting the subscribers' televisions to the main cable 21 serve. The port 23 is neither connected to a line from a subscriber, nor terminated. The connection 23a is connected to a typical line 24 to a subscriber. The connector 23b is with a typical one Cable termination 25 connected according to the prior art. The connection 23c finally carries the cable termination arrangement shown in FIG. The threaded portion 19 of the device shown in Figure 1 provides a convenient location to attach a cable 24a from a subscriber when the connector 23c is out of order.

From Figure 3 it can be seen that the end closure assembly 26 of Figure 1 for the formation of an end closure in a single junction box 23 of a community antenna system is equally useful, this single junction box on the inside wall of a house, apartment or office can be attached.

FIGS. 4 and 5 leave the details of that shown in B'igur 1 Arrangement 26 can be expressed even more clearly. The recess 12 of the shielding part 13 contains an area 12a with large diameter, the lower portion 11a of the female connector part 11 receives and encloses which is provided with the internal thread 15. The upper area 11b of the plug part 11 is hollow and is reduced in the area 12b Diameter of the shielding part 13 was added. The upper end of the plug part 11 is provided with slots 16, which, as will be described below, engage with a special tool. A resistor 44 is with a conductor 45 connected. When the cable is terminated, the conductor 45 is received in the one shown in FIGS

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and 3 central base 46, shown as a male connector part trained end connection, so that the necessary connection impedance is given. Resistance 44 is within a reduced diameter area 47 of the female connector part 11 is supported. The plug part 11 is in the recess 12a of the shield 13 by a snap ring 18 retained, which is received in a groove 49 in the lower end of the shielding part 13.

Figure 6 shows the special tool used for locking and releasing. A hollow handle part 61 receives the upper region 62 of a hollow, barrel-shaped part 63. A Operating shaft 64 is slidably received in barrel-like part 63. The movement of the shaft 64 inside the barrel-like Part 63 is delimited by a pin 65 which is arranged in a slot 66 formed in the actuating shaft is. The pin 65 is also mounted in a retraction sleeve 67 which is slidable on the barrel-type part 63 is held. Movement of the retraction sleeve 67 in the direction of arrow A causes the actuating shaft 64 to be inside of the barrel-like part 63 slides backwards against the action of a spring 68. A generally V-shaped spring member 69 has laterally protruding lugs 70 which are formed in the ends of its legs. It's with the operating shaft 64 connected by means of a pin 71, which is formed by a spring member 69 formed at the apex of the V-shaped spring member Loop stretches. In the preferred one shown in the drawings Embodiment are the legs of the spring member 69 normally pressed against each other. When the shaft 64 performs a movement in the direction of arrow B, the Legs spread apart, which is done by a pin 72, which pushes the lugs 70 outward through openings 73, which are formed next to the lower end of the barrel-like part 63.

The handling of the tool and the termination assembly are illustrated in FIGS. Figure 7 shows this Tool in a position in which the actuating shaft 64 is partially

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as is inserted into the bore 17 formed at the upper end of the shielding part 13. By finger pressure in the direction of the arrow A, the retraction sleeve 67 is displaced in the direction of the handle 61. The retraction sleeve 67 is mechanical connected via the pin 65 to the actuating shaft 64, which is also in the direction of arrow A against the action of the Spring 68 moves. The displacement of the shaft in the direction of arrow A allows the spring member 69 out of contact with to reach the expanding pin 72, so that the lugs 70 are withdrawn into the interior of the barrel-like part 63. The barrel-like one Part 63 can now be further inserted into the bore 81, as shown in Figure 8, until the openings 73 with the slots 43 formed in the upper end of the female connector part 11 are aligned. At this point, the noses can 70 move outward and the actuation shaft 64 is through the spring 68 is pushed away from the grip area 61. The lugs of the V-shaped Federoganes 69 are pushed apart by the pin 72, The lugs 70 being urged outwardly into engagement with the slots 43 of the female connector part 11. In the position shown in Figure 8, a rotation of the handle 61 causes the female connector part 11 such Rotary movement carries out that it is connected to the external thread of a shared antenna system connection 23 according to FIGS and 3 can be screwed. When the plug parts 11 and 23 are screwed together, the retraction sleeve 67 is in Moved towards the handle, which causes a retraction of the projections 70 inside the barrel-like part 63 and allows the tool to be withdrawn from the bore.

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Claims (2)

Claims 1. Cable termination arrangement, in particular for use in a cable transmission system of a community antenna system, which contains a cable for the transmission of electrical signals, as well as a fixed cable connection, with a first plug part of a pair of male-female plug parts designed as a rotary connection, characterized by a second plug part (11) of the male-female connector part pair, which is a device (16) contains, for the purpose of locking the plug elements (11, 23) by screwing into engagement with an elongated locking tool (61-73), through an outer shielding part (13) »which contains a recess (12) to the pair of connector elements (11, 23) therein, and to enclose, when the connector elements are locked together, said recess (12) has a ¹ such a shape and size that it has a free rotation of the shielding member (13) coaxially to the pair of the plug elements, by means of a device (18) which is inaccessible from the outside of the shielding part (13) when the pair of plug elements (11, 23) are connected to one another, to the second plug element (11) inside the recess (12 ) to hold, as well as by a device which defines an access opening for a locking tool (61-72) in the shielding part (13), wherein the opening (17) has such a size and shape that it can accommodate this tool temporarily an elongate barrel-like member (63) to rotate the second plug part (11) and to lock with the first plug part (23) and to detach from this . 2. Locking tool for use with a cable termination assembly according to claim 1, characterized by a hollow grip area (61), an elongated hollow one barrel-like part (63) extending from the handle area, wherein the barrel-like part (63) has at least one 409818/0756 Has opening (7 ^) adjacent to its end, through an actuating shaft part (64) which is slidably received in the hollow barrel-like part (63) by means (65, 66, 67) to limit the movement of the operating shaft inside the barrel-like part between a retracted position and an advanced position, as well as by an engagement device (69-72), which is operationally with the actuating shaft part (64) inside the barrel-like part (63) is connected and designed so that it is after outside through the opening (73) in the barrel-like part (63) protrudes and engages the plug part (11) for rotation thereof when the operating shaft part (64) occupies the advanced position and that it is retracted into the interior of the barrel-like part and disengaged from the Plug part (11) is brought when the actuating shaft part (64) assumes its retracted position. 409818/0756 Blank page