JPH0719014Y2 - In-station folding jig - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention is intended for the purpose of checking the fitting mistake of the unit / subunit core wire group when comparing the core wires of the underground cable for communication. It is about ingredients.

[Prior Art] An underground cable for communication (hereinafter referred to as a cable) is usually used for connection between cables. When this connection work is completed, use the fold-back jig of the pad connector core wire test ammunition (200 pieces / 1 unit) as the core wire comparison work, and compare it with the fold point with the station side as the upper part around the connection end point. A worker is assigned each time, the continuity test, the mixing test, and the ground test are performed from the next lower connection point (test point), and the test results are printed out.

[Problems to be solved by the invention] However, with this method, it is not possible to discriminate the difference in fitting between the unit and the subunit.

That is, FIG. 7 shows the test method using the Pat test ammunition (a), and the folded wiring (b) is, for example, (1 to 10).
And (51-60), (11-20) and (61-70) …… (41-50)
And wire as (91 ~ 100). (1-10) to (41
~ 50) is the signal transmission side, and (51-60) to (91-100) are the signal reception side. At the time of normal mating (1-10)
When you send a signal to the return wiring (b) (51 ~
60) will be received.

FIG. 8 shows the case of incorrect fitting. Since the signal flows as shown by the bold arrow, it goes out of (1-10) and returns to (51-60) in exactly the same way as shown in FIG. Become.

In this case, the present invention intends to provide an in-station folding tool which is attached to the in-station test ammunition and is effective and appropriate for resolving the fitting error between the unit and the subunit core wires.

[Means for Solving the Problem] The solution of the above problem is achieved by the present invention by adopting the following novel characteristic configuration means.

That is, the feature of the present invention is that a plurality of pairs of folded wiring terminal groups that are electrically connected to each other and are inserted and connected to the unit and the sub-unit of the cable core group through the in-station test ammunition and the plurality of pairs of terminals are independent. In an in-station folding tool comprising a first connector and a second connector, each of which is provided with a pseudo wiring in which one of the in-station test ammunition can be inserted / removed and the other of the taps can be connected together, Second
When a plurality of the taps of the pseudo wiring of the connector are arranged in parallel and face each other, and a plurality of the first and second connectors are inserted in parallel and connected to the in-station test ammunition,
An in-station fold-back jig having an in-station loop configuration that allows the cable core wires to be freely connected by connecting the taps so that they can be combined in a plurality of predetermined combinations different from the connection of the folded-back wiring terminals of the in-station test ammunition. Is.

[Operation] Since this measure has taken the above-described means, pseudo wiring has been incorporated to improve the accuracy of the unit / sub-unit core wire connection when connecting the cable and to prevent mistakes such as incorrect fitting. As a folding jig, it is possible to eliminate the loss of work efficiency such as placing workers at the folding point (including the inside of the station) and to check the mating difference which was impossible to check with the pad connector tester.

[Embodiment] An embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is an external perspective view of the folding jig of this embodiment, FIG. 2 is a wiring diagram of the same printed circuit board, and FIG. 3 is the same wiring diagram.
FIG. 4 is an external perspective view of a No. 200 U test ammunition to which the folding jig of this embodiment is attached.

The folding jig a of the present embodiment has a plurality of pairs of folding terminals (A2 to A10), (A2 'to A10'), (B2 to B1) which are electrically connected to each other.
0) and (B2 'to B10'), a female tap b having a red pseudo wire c and a male tap d having a black pseudo wire e, respectively, as a first connector f and a second connector g. It is provided in.

In the figure, h is a folded wiring cable, i and j are caps, and k and l
Is a board mounting base, and A, A ′, B and B ′ are printed circuit boards.

As shown in the folding jig wiring diagram of 100 pairs of the first unit in Fig. 3, 1 (red) of male and female taps b and d of pseudo wiring c and e = 1L
₁ and 121 (black) = 61L ₁ Make a combined short circuit. 21 (red) below =
11L ₁ and 141 (black) = 71L ₁ and so on. For example, a compulsory “scratch” (misfitting) of 5 pseudo wires c and e is generated between 1 units in order.

Here, name the subunit as (1 to 20) is A, (21 to 40)
Will be named B, ... (181 to 200) J for convenience sake.

Therefore, five sets of the folding jigs a of this embodiment are prepared, and
Insert into the bullet window A'-J 'of No. 200 U test bullet m shown in the figure.

That is, the folded wiring h'is set to A and F, B and G, C, H, D and I, E and J, and the pseudo wirings c and e are set to 1 (red) and 121.
(Black), 21 (red) and 141 (black), 41 (red) and 161 (black), 61
Wirings different from the folded wiring h ', such as (red) and 181 (black), 81 (red) and 101 (black), are performed.

In the figure, n is a Japan wire insertion port, o is a cleat, p is a mounting screw, q is a U-slit terminal, r is a pat connector, and s is a pat connector on the terminal termination cable side.

FIG. 5 shows a pseudo wiring diagram when the fitting error is intentionally caused in this way. This figure shows the case of No.1 unit (subunit No.1 and No.6 mating difference). As shown in the figure, in the case of the different fittings of No. 1 and No. 6, the signal output from 1 should be output to 81, which should be output to 121. The test result is displayed as "Dancen". 21,41,61 is correct
Since it is given and received by 141, 161, and 181, it is displayed as a "slug." In the figure, t is a fitting part.

In this way, in order to compare the expected mating combination with the result display, the unit identification table α by the pseudo circuit of FIG. 6 is provided, and the pseudo wiring c, e of 5 wires per unit is provided for it.
Is set to indicate a total of 30 units. When the identification table α output by each unit is output from the pad connector core test ammunition m with the combination of "Kakechigai" according to this unit identification table α, it is confirmed that all "mismatches" are good. Can be done.

As a result, it is possible to confirm unit and sub-unit mating differences that were not possible with conventional methods.

[Effects of the Invention] Thus, according to the present invention, there is an advantage that mistakes such as fitting errors can be prevented by forming pseudo wiring in the folding jig and forcibly generating "scratching".

In addition, by attaching a folding jig to the No. 200 U test ammunition unit in the station as an incidental point to them, an in-station loop became possible, and wiring of workers into the station became unnecessary.

It should be noted that it has excellent practicability and usefulness such that the control can be performed at each connection point immediately after the completion of the connection work to prevent erroneous connection and ensure the improvement of work efficiency.

[Brief description of drawings]

FIG. 1 is an external perspective view of a folding jig showing an embodiment of the present invention, FIG. 2 is a wiring diagram of the same printed circuit board, FIG. 3 is the same wiring diagram, and FIG. 4 is an embodiment of the present invention. Fig. 5 is an external perspective view of the No. 200 U test ammunition to which the folding jig is attached, Fig. 5 is a pseudo wiring diagram with incorrect fitting, Fig. 6 is a unit identification table diagram by a pseudo circuit, and Fig. 7 is a conventional pad test. FIG. 8 is a folded wiring diagram in the case of a normal fitting connection in the test of the ammunition, and FIG. 8 is a folded wiring diagram in the case of the same abnormal fitting connection. a ... Folding jig, b ... Female tap c, e ... Pseudo wiring, d ... Male tap f ... First connector, g ... Second connector h ... Folding wiring cable h '... Folding wiring m ... No. 200 U Test ammunition A to J ... Subunit, A'to J '... ammunition window

Claims (1)

[Scope of utility model registration request] 1. A plurality of pairs of folded wiring terminal groups that are electrically connected to each other and are inserted into and connected to a unit and a sub-unit of an underground cable core group for communication via an in-station test ammunition, and the plurality of pairs of terminals are independent of each other. In the in-station fold-back jig comprising a first connector and a second connector, pseudo wiring in which one of the in-station test ammunition is removably provided and the other of the in-station test ammunition is freely connectable is provided. When a plurality of the taps of the pseudo wiring of the second connector and the second connector are arranged in parallel and face each other, and a plurality of the first and second connectors are inserted in parallel and inserted into the in-station test ammunition, By connecting the taps so that they can be freely combined in a plurality of predetermined combinations different from the connection of the folded wiring terminals of the test ammunition, the internal cable of the underground cable for communication can be freely compared with the internal cable. Station folded jig, characterized in that the flop configuration