JP3159033B2 - Testing equipment for electric wires fixed in a rosette - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for testing the continuity and arrangement of electric wires fixed to a rosette in the field of information communication.

[0002]

2. Description of the Related Art In general, a rosette is used as a means for connecting a terminal device such as a telephone or a personal computer to an indoor wiring. FIG. 8 shows an example of a wiring configuration using this rosette.

In FIG. 1, an electric wire 10 led from an information network or a concentrator is connected to a switchboard or the like in a primary terminal box 12 installed outdoors. On the other hand, electric wires led from terminal devices such as telephones installed in the room are connected to a plurality of rosettes 14 installed on the floor or the like in the room. Each rosette 14 is connected to a switchboard or the like in an outdoor secondary terminal box 18 via a plurality of wires in a cable 16, and a switchboard or the like in both terminal boxes 12 and 18 is connected to each other via a patch cord 20. Have been. That is, each terminal device in the room includes the rosette 14, the cable 16, the secondary terminal box 18, the patch cord 20, the primary terminal box 1
2, and connected to an information network and a line concentrator via an electric wire 10.

By the way, since a predetermined number of the rosettes 14 are installed on a floor or the like irrespective of the type of use of the terminal equipment indoors, it is considered that all the rosettes 14 are actually used. However, some rosettes 14 may be left unused. In this case, regarding the rosette 14 in use, when an abnormality occurs in conduction or the like of the electric wire connected to the rosette 14 (that is, the electric wire in the cable 16), this can be immediately known, but is not used. The rosette 14 requires a special test to detect the presence or absence of the abnormality.

Conventionally, such an unused rosette 14
As a method for testing the continuity and the like of the electric wire connected to
4 is taken out, one terminal of a measuring device such as a continuity measuring device is inserted into the rosette 14 and electrically connected to one end of an electric wire of the cable 16, while the other terminal of the measuring device is connected to the other end of the electric wire ( That is, a method of connecting to the end of an electric wire connected to a switchboard or the like in the secondary terminal box 18 is generally performed.

[0006]

In the above conventional method,
There are the following disadvantages.

Generally, each rosette 14 is located indoors,
The secondary terminal boxes 18 are respectively arranged outside the room, and both are largely separated from each other. Therefore, if one operator performs all of the above-described tests such as continuity, this operator inserts one terminal of the measuring instrument into the rosette 14 and then moves a considerable distance to the secondary terminal box 18. It has to be moved and the work efficiency is extremely poor. Therefore, generally, it is necessary to arrange workers on the side of the rosette 14 and the side of the secondary terminal box 18, respectively, which requires labor.

In order to test the electric wires in the rosette 14 and the cable 16, it is necessary to use a special tester having a conductor equal to or longer than the wiring length of the cable 16. Such a tester is more expensive than a normal small tester, and its use is not preferable.

When a test is performed on a predetermined rosette 14 many times, it is necessary to take out the rosette 14 every time the test is performed and connect a measuring instrument to the rosette 14, which is very troublesome.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a test apparatus capable of inexpensively and efficiently examining the quality of conduction of an electric wire fixed to a rosette at low cost.

[0011]

As a means for solving the above-mentioned problems, the present invention relates to an electric wire fixing portion to which ends of a plurality of electric wires are fixed, and a modular connector connected to a terminal device. And a test apparatus for each of the electric wires fixed to a rosette configured to connect the modular connector coupled to the connector coupling portion and the electric wire fixed to the electric wire fixing portion. And a short-circuit switching member having a short-circuit conductor for short-circuiting at least two wires among the electric wires, wherein the short-circuit switching member is electrically connected to the electric wires. A short-circuit switching member is provided in the rosette so as to be movable between a short-circuit position for short-circuiting each other and a non-short-circuit position separated from the electric wire. Urging means for urging and, when the modular connector is coupled to the connector coupling portion, cooperating with the coupling to forcibly move the short-circuit switching member to the non-short-circuit position against the urging means. It is provided with interlocking means.

According to this configuration, by switching the short-circuit switching member between the non-short-circuit position and the short-circuit position, the modular connector is coupled to the connector coupling portion of the rosette, and the electric wire and the terminal device are connected via the rosette and the modular connector. And a short-circuit state in which at least two of the wires are short-circuited. Then, the wires are short-circuited in advance on the rosette side as in the latter state, so that the measuring instrument is connected only to the end of the short-circuited wire opposite to the end fixed to the rosette. Just by doing so, the quality of the conduction and the like can be checked. That is, the operator does not need to move between the end of the closet-side electric wire and the end on the opposite side, and the test can be easily performed by only one operator. In addition, with regard to an unused rosette, it is sufficient that the wires are always short-circuited on the side of the rosette, and it is not necessary to take out the rosette from the floor or the like every time a test is performed as in the related art.

Further, an urging means for urging the short-circuit switching member to the short-circuit position side, and when the modular connector is coupled to the connector coupling portion, interlocks with this coupling to urge the short-circuit switching member. Interlocking means for forcibly moving to the non-short-circuit position against the means,
In the non-use state in which the modular connector is not connected to the connector connection portion, the short-circuit switching member is automatically held at the short-circuit position by the urging force of the urging means, so that a state suitable for testing the electric wire is maintained. When the modular connector is coupled to the connector coupling portion, the short-circuit switching member is automatically switched to the non-short-circuit position against the urging force of the urging means in conjunction therewith, so that a normal rosette can be used. State.

[0014] In this apparatus, it is more preferable that the short-circuit switching means is configured so that all the electric wires connected to the rosette are paired and short-circuited to each other in the same pair.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments other than the embodiment of the present invention will be described first with reference to FIGS. Note that in this embodiment, the entire wiring is equivalent to that shown in FIG. 8, and the description thereof is omitted here. However, the present invention is not limited to a specific wiring form, and can be widely applied when an electric wire is connected to a rosette.

As shown in FIGS. 2 and 3, in this embodiment, the cable 16 is composed of eight wires 21, 22, 23,
24, 25, 26, 27, 28, and electric wires 21, 22
The wires 23, 24, the wires 25, 26, and the wires 27, 28 are twisted.

A terminal block 29 is provided inside the housing of the rosette 14. The main body of this terminal block 29
The body is formed of an insulating material such as a synthetic resin, and eight grooves d1, d2, d3, d4, d5, d6, d7, and d8 are formed in the body. Each groove d1 to d8 is open upward,
The press contact blade of the press contact terminal 29a as shown in FIGS. 4 and 5 protrudes inward from the inner surface thereof (only the groove d8 is shown as an example in FIGS. 4 and 5). And the eight electric wires 21, 22, 2 drawn out from the cable 16
3, 24, 25, 26, 27, 28 are each groove d
1, d2, d3, d4, d5, d6, d7, and d8 are press-connected to press-contact terminals 29a.

A connector insertion hole (connector connection portion) 39 is provided in the side wall of the housing of the rosette 14, and eight rosette terminals 31, 32, 33, 34, 35, 36, 37,38
Are arranged. And each of the rosette terminals 31 to 3
8, one end of the same number (ie, eight) of the closet internal wires 30 is connected to each other, and the other end of the closet internal wires 30 is press-connected to each press-connecting terminal 29a. 23, 24, 25, 2
6, 27, 28 are connected to the rosette terminals 31, 32, 33,
34, 35, 36, 37, and 38.

On the other hand, a cable 40 led from a terminal device (not shown) also has eight electric wires 42, and these electric wires 4
The second terminal is inserted and fixed in the modular connector 44. The modular connector 44 is inserted into the connector insertion hole 39 and is connected to the housing 45.
, And eight connector terminals 46 (FIG. 2). Each of the electric wires 42 is connected to each of the connector terminals 46, and the housing 45 is inserted into the connector insertion hole 39 and coupled to each other. Each electric wire 42 is connected to each rosette terminal 31
To 38 respectively.

Further, as a feature of this device, a short-circuit connector 48 as shown in FIG. 1 is provided separately from the modular connector. This short-circuit connector 48
Has a housing 50 that is exactly the same as the housing 45 of the modular connector 44, and is therefore configured to be inserted into and connectable to the connector insertion hole 39. In this housing 50, four short-circuit conductors 52, 54, 5
6 and 58 are fixed, and the short-circuiting conductor 52 contacts the rosette terminals 31 and 32 to short-circuit them when the housing 50 is inserted into and connected to the connector insertion hole 39. 54 is the rosette terminal 33,
34 to short-circuit them, short-circuit conductor 56 contacts rosette terminals 35 and 36 to short them, and short-circuit conductor 58 contacts rosette terminals 37 and 38 to short-circuit them. Each of the short-circuit conductors 52, 54, 56,
58 are arranged.

Next, the operation of this device will be described.

When the rosette 14 is used as usual, the housing 45 of the modular connector 44 may be inserted and connected into the connector insertion hole 39 of the housing. As a result, as shown in FIG. 2, each electric wire 42 of the cable 40 led from the terminal device is connected to the connector terminal 46, the rosette terminal 31 (or 32 to 38), the electric wire 30 in the rosette, and the press contact terminal 29 a of the terminal block 29. Are connected to the respective wires 21 to 28 of the cable 16 via
The wiring shown in FIG. 8 is connected to the information network and the concentrator shown in FIG.

On the other hand, when the rosette 14 is not used, the short-circuit connector 48 of FIG. Thereby, as shown in FIG. 1, the electric wires 31, 32, the electric wires 33, 34, the electric wires 35, 36, and the electric wires 37, 38 are short-circuited by the short-circuit conductors 52, 54, 56, 58, respectively. For example, using the small continuity tester 60 shown in FIG.
Can be tested for continuity.

The continuity tester 60 has a pair of terminals 62, and a DC power supply 64 and a lamp 66 are provided between both terminals 62. When both terminals 62 are turned on, the lamp 66 is turned on. It is configured to be.

In the state of FIG. 1, for example, if the terminals 62 are electrically connected to the terminals of the electric wires 21 and 22 on the secondary terminal box 18 side, respectively, there is no conduction failure due to disconnection or the like of the electric wires 21 and 22. The lamp 66 turns on, and if there is a conduction failure, the lamp 66 does not turn on. Therefore, by this operation, it is possible to confirm the quality of conduction of the electric wires 21 and 22. Similarly, both terminals 62 are connected to the electric wires 23, 2
4. By sequentially connecting to the terminals of the electric wires 25 and 26 and the electric wires 27 and 28, it is possible to accurately check the continuity of all the electric wires 21 to 28.

According to such a method and apparatus, for the unused rosette 14, the short-circuit connector 48 may be inserted and coupled into the connector insertion hole 39, and in this state, the secondary terminal box 18 side Since the continuity test can be performed only by the above operation, the troublesome work of taking out the rosette 14 and connecting the terminal of the tester every time the unused rosette 14 is tested as in the related art is unnecessary, and the test work efficiency is dramatically increased. To improve. Further, a small tester may be used, and there is no need to use a particularly large and expensive tester.

However, in the present invention, various continuity testers and the like can be used regardless of the specific structure of the tester used. For example, a lamp using a buzzer instead of the lamp 66 may be used.

Next, an embodiment of the present invention will be described with reference to FIGS.
It will be described based on.

Here, instead of the short-circuit connector 48, a short-circuit switching plate 70 is provided in the rosette 14 shown in FIG. 3 as short-circuit switching means. The short-circuit switching plate 70 is made of an insulating material such as a synthetic resin, extends in parallel with the terminal block 29, and has through holes 74 at both left and right ends thereof.

Four short-circuit conductors C12, C34, C56, and C78 are fixed to the lower edge of the short-circuit switching plate 70.
The short-circuiting conductors C12, C34, C56, and C78 have a U-shape, and are fixed to the short-circuit switching plate 70 with both ends facing downward.

On the other hand, in the rosette 14, a pair of left and right guide rods 71 project in a substantially horizontal direction from the housing inner wall 14 a opposite to the connector insertion hole 39 with the terminal block 29 as a boundary. Has been established.
When the guide rods 71 are inserted into the through holes 74 of the short-circuit switching plate 70, the short-circuit switching plate 70 is supported so as to be movable in the direction of coming into contact with and separating from the terminal block 29. In this state, both lower ends of the short-circuit conductor C12 are located on the sides of the grooves d1 and d2, both ends of C34 are located on the sides of the grooves d3 and d4, respectively, and both lower ends of C56 are located on the sides of the grooves d5 and d6, respectively. The short-circuit switching plate 7 is positioned so as to be located on the side and both lower ends of C78 are located on the sides of the grooves d7 and d8 respectively.
The fixed positions of the short-circuit conductors C12, C34, C56 and C78 to 0 are set.

The short-circuit switching plate 70 and the housing inner wall 14
a around the guide rod 71 in the region between
A compression spring 72 is provided. Due to the elastic force of the compression spring 72, the short-circuit switching plate 70 is urged in a direction approaching the terminal block 29, and is indicated by a solid line in FIGS.
Here, only the short-circuit conductor C78 is illustrated as an example. ), The lower ends of the short-circuiting conductors C12, C34, C56, and C78 are positioned laterally with respect to the press contact terminals 29a of the grooves d1 to d8 (from the back side to the front side in FIGS. 6 and 7). C) It is held at a position where it makes electrical contact.

Further, from the short-circuit switching plate 70, a rod (interlocking means) 76 is provided in a direction toward the modular connector 44 inserted into the connector insertion hole 39 (a front side in FIGS. 6A and 6B). When the modular connector 44 is completely inserted, the modular connector 44 hits the tip of the rod 76 and retreats the short-circuit switching plate 70 against the elastic force of the compression spring 72. 6 (b) and 7, each short-circuiting conductor C1
The length of the rod 76 is set so that the lower ends of 2, 34, C56, and C78 are separated from the respective press contact terminals 29a.

According to this device, when the modular connector 44 is not inserted into the connector insertion hole 39 (ie, when the rosette 14 is not used), the short-circuit switching plate 70 is pushed by the elastic force of the compression spring 72. The two ends of the short-circuiting conductor C12 fixed to the grooves d1 and d2
3 and short-circuit the electric wires 21 and 22 shown in FIG. 3, and both ends of the short-circuiting conductor C34 are in contact with the press-contact terminals 29a in the grooves d3 and d4.
24 are short-circuited, and both ends of the short-circuiting conductor C56 are grooved d5,
The electric wires 25 and 26 come into contact with the pressure contact terminals 29a at d6.
Are short-circuited, and both ends of the short-circuiting conductor C78 are brought into contact with the press-contact terminals 29a in the grooves d7 and d8 to automatically maintain a state in which the electric wires 27 and 28 are short-circuited. Therefore, in this state, the continuity test of the electric wires 21 to 28 can be performed in the same manner as that described in the first embodiment.

On the other hand, when the modular connector 44 is completely inserted into the connector insertion hole 39, the modular connector 44 pushes the rod 76, and the short-circuit switching plate 70 is retracted against the elastic force of the compression spring 72. Each short-circuit conductor C1
Since the lower ends of C2, C34, C56, and C78 are separated from the press contact terminals 29a, the rosette 14 can be used as usual.

The embodiment of the present invention is not limited to this,
As an example, the following embodiment is also possible.

(1) In the present invention, regardless of the number of electric wires, the short-circuit switching means may be appropriately configured according to the number.

(2) In the present invention, at least two wires to be tested may be short-circuited on the rosette 14 side. For example, even if all wires are short-circuited, a continuity test is possible. However, as shown in the above embodiment, if the short-circuit switching means is configured to short-circuit only the same set of wires by setting specific wires as a set, only the presence or absence of a conduction failure of each of the wires 21 to 28 is determined. In addition, it is possible to confirm whether or not there is an error in the connection position of each of the wires 21 to 28 to the rosette 14, and there is an advantage that a more appropriate wire test can be realized. For example, in the state of FIG. 1, when the electric wire 21 is erroneously connected to the rosette terminal 33 and the electric wire 23 is erroneously connected to the rosette terminal 31, even if the electric wires 21 and 22 have good conduction, Since the lamp 66 does not turn on when the two terminals 62 of the tester 60 are connected to the two electric wires 21 and 22, it is possible to confirm that either the conduction abnormality or the connection abnormality has occurred due to the non-lighting.

(3) As described above, the interlocking means for interlocking the switching of the state with the connection and disconnection of the modular connector 44 is not particularly limited, and the insertion force of the modular connector 44 is transmitted through a well-known mechanism such as a link mechanism or a cam mechanism. The moving force may be converted into the moving force of the short-circuit switching plate 70.

[0040]

As described above, according to the present invention, each electric wire can be efficiently tested using a low-cost and small-sized test device as compared with the conventional method of connecting test devices to both ends of the electric wire. effective.

Further, in a non-use state in which the modular connector is not connected to the connector connecting portion, the wires can be automatically short-circuited to be in a testable state. Has the effect of automatically bringing the circuit into a non-short circuit state and realizing the use of a normal rosette.

In particular, in the case where the wires fixed to the rosette are made into a pair and the wires of the same set are short-circuited, the continuity measuring device is connected to the wires short-circuited to each other. By doing so, not only the continuity of each electric wire, but also whether or not each electric wire is connected to a proper position with respect to the rosette can be checked, and a more preferable test can be performed.

[Brief description of the drawings]

FIG. 1 is a circuit configuration diagram showing a state in which a short-circuit connector is connected to a rosette in a mode different from the embodiment of the present invention.

FIG. 2 is a circuit diagram showing a state in which a modular connector is connected to the rosette.

FIG. 3 is a perspective view showing an internal structure of the rosette.

FIG. 4 is a perspective view showing a connection structure between a terminal block in the rosette and each electric wire.

FIG. 5 is a front view showing a connection structure between a terminal block in the rosette and each electric wire.

FIG. 6A is a perspective view showing a state where the short-circuit switching plate is held at the short-circuit position in the embodiment of the present invention;
(B) is a perspective view showing a state in which the short-circuit switching plate is retracted to a non-short-circuit position.

FIG. 7 is a perspective view showing a positional relationship between a short-circuit conductor fixed to the short-circuit switching plate and a press-contact terminal on a terminal block.

FIG. 8 is a schematic diagram showing a general wiring form using a rosette.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 14 Rosette 16 Cable 21-28 Electric wire 29 Terminal block (Electric wire fixing part) 30 Electric wire in rosette 31-38 Rosette terminal 39 Connector insertion hole (Connector joint part) 44 Modular connector 48 Short-circuit connector 52, 54, 56, 58 Short-circuit Conductor 70 Short-circuit switching plate 72 Compression spring (biasing means) 76 Rod (interlocking means) C12, C34, C56, C78 Short-circuiting conductor

Claims (2)

(57) [Claims] An electric wire fixing portion to which ends of a plurality of electric wires are fixed, and a connector connecting portion to which a modular connector connected to a terminal device is connected, wherein said connector connecting portion is connected to said connector connecting portion. A test apparatus for each of the electric wires fixed to a rosette configured to connect a modular connector and an electric wire fixed to the electric wire fixing portion,
A short circuit that short-circuits at least two of the wires
A short-circuit switching member having a conductor for use.
The short-circuiting conductor is electrically connected to the electric wire.
Separated from the short-circuit position where these wires are short-circuited with each other
The above-mentioned row is to be movable between non-short positions.
And the short-circuit switching member
A biasing means for biasing to the entanglement position side;
When the modular connector is connected, it is connected with this connection.
Moving the short circuit switching member against the urging means.
Wire test device fixed to rosette, characterized in that a linkage means for moving to said non-shorting position to. 2. The test apparatus for an electric wire fixed to a rosette according to claim 1 , wherein the short-circuit switching means is arranged such that all the electric wires fixed to the rosette are paired to short-circuit the electric wires of the same set. A testing device for an electric wire fixed to a rosette, comprising: