JPH07201234A - Multi-core cable core wire disposition order checking device - Google Patents

Abstract

PURPOSE:To provide a multi-core cable core wire disposition order checking device with which errors in disposition orders of a number of core wires can be checked easily and securely, of which constitution is simple, and which can be operated easily. CONSTITUTION:A multi-core disposition order checking device checks errors in disposition orders of core wires in a process of installing connectors 2, 3 on both ends of a multi-core cable 1. It has a connection connector 5 to which the first connector 2 installed on one end of the multi-core cable l is connected, and a determination means is provided to determine if the core wire disposition order is the error or not in order by continuity check. It is also provided with an alarm means to alarm the error of the core wire disposition order, and a cutting means to arrange and cut core wires a, b, c, d,... at the other end of the multi-core cable 1 to comply with pin disposition of the second connector 3. A cutter 4 of the cutting means is connected to a continuity check terminal of the determination means, so the cutter 4 is used as a probe for checking continuity.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a core wire arrangement sequence checking device for a multi-core cable used in a process of attaching connectors to both ends of a multi-core cable formed by bundling a large number of core wires made of covered conductors. Is.

[0002]

2. Description of the Related Art Generally, in a process of attaching a connector to both ends of a multi-core cable formed by bundling a large number of core wires made of covered conductors, as shown in FIG.
The first connector 2 is attached to one end of the multi-core cable 1 (the conductor wires of the core wires a, b, c and d are fused to the pins of the connector 2), and the core wires a, b and c of the other end of the multi-core cable 1 are attached. , D to be aligned corresponding to each pin of the second connector 3 by using the alignment jig 7 provided with the groove 8, and in this state, the ends are aligned and cut by the cutter 4, and the second connector 3 (The conductor wire of each core wire is fused to each pin of the connector). However, the work of aligning a large number of core wires a, b, c, d-corresponding to each pin of the second connector 3 is troublesome, and each core wire a, b, c, d- of the multi-core cable 1 is The order of arrangement may be incorrect. Therefore, after attaching the first connector 2 to one end of the multi-core cable 1, each core wire a,
In the state where b, c, and d are aligned with the pins of the second connector 3 (the state shown in FIG. 4A), the core wires a,
It was necessary to strictly check whether the order of arrangement of b, c, and d is correct. Conventionally, the operator checks the arrangement order of the core wires a, b, c, and d in the connector attaching step.

[0003]

However, as described above, in the conventional check method in which the operator visually checks the arrangement order of the core wires a, b, c, d-, a check error due to an oversight occurs. This is easy, and defective products occur at the final inspection stage, resulting in a large economic loss. A method of conducting a continuity check for each core wire a, b, c, d through a tester or the like in the attachment process of the second connector 3 is also conceivable, but there is a problem that the check work becomes very troublesome. It was It is also possible to provide a continuity check probe for each of a large number of core wires a, b, c, d. However, in this case, there is a problem in that the configuration becomes complicated and the handling becomes troublesome. .

The present invention has been made in view of the above points, and an object of the present invention is to easily and surely check an error in the arrangement order of a large number of core wires, and to make the operation simple. The present invention provides a simple apparatus for checking the core wire arrangement order of a multi-core cable.

[0005]

The present invention is used in the step of attaching connectors to both ends of a multi-core cable formed by bundling a large number of core wires made of coated conductors, and checks the order in which the core wires are arranged. A core wire arrangement sequence checking device, which has a connecting connector to which a first connector attached to one end of a multi-core cable is connected, and a judging means for sequentially judging whether or not the core wire arrangement order is wrong by a continuity check, and a core wire. A notification means for notifying an arrangement order error, and a second
The second end of the core wire of the multi-core cable to which the connector is attached
The cutting means is arranged to cut so as to correspond to the pin arrangement of the connector, and by connecting the cutter of the cutting means to the continuity check terminal of the determination means,
The cutter is used as a probe for continuity check.

[0006]

As described above, the present invention has a connecting means to which the first connector attached to one end of the multi-core cable is connected, and a judging means for sequentially judging whether or not the core wire arrangement order is wrong by a continuity check. A notification means for notifying an erroneous core wire arrangement order, and a cutting means for aligning and cutting the core wire at the other end of the multi-core cable to which the second connector is attached so as to correspond to the pin arrangement of the second connector. Composed,
By connecting the cutter of the cutting means to the continuity check terminal of the determination means, the cutter is used as a continuity check probe, and since the cutter that is a cutting jig is diverted as a continuity check probe. Since the configuration is simplified and the arrangement order can be checked at the same time when each core wire is cut,
The check operation can be performed very easily, and the strict sequence order check can be performed easily without any risk of a check error.

Further, a plurality of latch circuits for latching the result of the continuity check between each pin of the connector and the cutter, and the continuity check result input section of the second and subsequent latch circuits are provided at the latch circuit output of the previous stage. When a determination means is formed by a plurality of gate circuits that are opened and closed accordingly, and when conduction between the first pin of the connector and the cutter is detected, 1
While setting the latch circuit of the first stage, open the gate circuit when the output of the latch circuit of the previous stage is in the set state so that the continuity check results of the second and subsequent pins of the connector are input to the latch circuit of the next stage. Because I am
The determination means can be formed with a simple circuit configuration, and an inexpensive array sequence check device can be provided. Furthermore, the notification means is formed by the light emitting diodes that are turned on by the output of each latch circuit, and the presence or absence of an error in the arrangement sequence and the error position are displayed by turning on the light emitting diodes. The work of correcting the arrangement order of the core wires can be easily performed.

[0008]

1 and 2 show an embodiment of the present invention, which has a connecting connector 5 to which a first connector 2 attached to one end of a multi-core cable 1 is connected, and a core wire arrangement sequence is determined by a continuity check. For sequentially determining whether or not there is a mistake, a notifying means including light emitting diodes La, Lb, Lc, and Ld for notifying an error in the core wire arrangement order, and the multi-core cable 1 to which the second connector 3 is attached. And a cutting means including a cutter 4 for cutting the core wire arranged at the other end of the second connector 3 so as to correspond to the pin arrangement of the second connector 3,
By connecting the cutter 4 of the cutting means to the continuity check terminal of the determination means (in the embodiment, the ground terminal of the determination means), the cutter 4 is used as a continuity check probe.

Here, in the embodiment, the above-mentioned determination means is constituted by a plurality of latch circuits FFa, FFb, which latch the result of the continuity check between the respective pins 5a, 5b, 5c, 5d of the connector 5 and the cutter 4. FFc, FFd- and latch circuits FFb, FFc, FFd in the second and subsequent stages, which are provided in the conduction check result input section of the latch circuits FFa, F in the previous stage.
Fb, FFc, FFd-a plurality of gate circuits composed of transistors Qa, Qb, Qc, Qd-which are opened / closed according to the output, and the first pin 5 of the connector 5 is formed.
When the continuity between a and the cutter 4 is detected, the first stage latch circuit FFa is set, and the gate circuits are opened when the outputs of the previous stage latch circuits FFa, FFb, FFc, FFd are in the set state. (Transistor Qa,
Latch circuit FF of the next stage (by turning on Qb, Qc, Qd)
b, FFc, FFd-, the continuity check results of the second and subsequent pins 5b, 5c, 5d of the connector 5 are input. Further, the light emitting diodes La, Lb, Lc, Ld to form the notification means are lit by the outputs of the respective latch circuits FFa, FFb, FFc and FFd. In this embodiment, the latch circuit F
Fa, FFb, FFc, and FFd-I for cyclic touch switches composed of four sets of Schmitt triggers, T-type flip-flops, gates, output circuits, and the like.
C (TC9130P / F) is used. In addition, each I1
The ~ I4 terminal is pulled up by a parallel circuit of a resistor and a capacitor, and the sensitivity can be set by the time constant of the resistor and the capacitor.

The operation will be described below. First, the first connector 2 of the multi-core cable 1 whose arrangement order should be checked is connected to the connection connector 5, and as shown in FIG. 4, the core wires a, b, c, d at the other end of the multi-core cable 1 are connected. Are set in the groove 8 of the alignment jig 7 in a state of corresponding to the pins of the second connector 3. Next, the ends of the core wires a, b, c, d at the other end of the multi-core cable 1 are sequentially cut by the cutter 4 that is manually moved in the arrow direction, and the core wires a, b, c, d.
When each of the conductors is cut, the grounded cutter 4 surely contacts the conductor and functions as a probe for continuity check. Therefore, the arrangement order check by the continuity check for each pin 5a, 5b, 5c, 5d of the connection connector 5 is performed by the determination means at the same time as the cutting by the cutter 4, and the result of the arrangement order check is the light emitting diodes La, Lb ,. It is displayed by lighting Lc and Ld.

Now, in the case where the arrangement order of the core wires a, b, c, d of the multi-core cable 1 set in the alignment jig 7 is correct, first, the core wire a is cut by the cutter 4. The first pin 5a of the connector 5
Is grounded, the first-stage latch circuit FFa is set, the light-emitting diode La lights up, the transistor Qb is turned on, and the gate circuit of the second-stage latch circuit FFb is opened. Next, when the core wire b is cut, the second pin 5b of the connector 5 is grounded, the second stage latch circuit FFb is set, and the light emitting diode Lb is turned on. Similarly, when the core wires c and d are cut by the cutter 4, the latch circuits FFc and FFd from the third stage onward are used.
Are respectively set, and the light emitting diodes Lc and Ld are sequentially turned on to indicate that the arrangement order is not wrong.

On the other hand, as shown in FIG. 1, for example, when the core wires c and d of the multi-core cable 1 intersect at the central portion and the arrangement order is incorrect, the core wires a and b are normally arranged. Therefore, the first-stage latch circuit FFa and the second-stage latch circuit FFb are normally set, and the light-emitting diode L
a and Lb are turned on. However, since the core wires c and d are misaligned, the third pin 5 of the connector 5
The third latch circuit FFc that latches the result of the continuity check of c is set when the cutter 4 cuts (grounds) the core wire c, not when the cutter 4 cuts (ground) the core wire c. Therefore, although the gate circuit of the fourth-stage latch circuit FFd is opened (the transistor Qd is turned on), the core wire c connected to the fourth pin 5d of the connection connector 5 has already been cut off. 4 pin 5
d is not grounded and the fourth stage latch circuit FF
d is not set. In this way, unless the latch circuit FFd of the fourth stage is set, the gate circuits of the latch circuits of the fifth stage and thereafter will not be opened, so the core lines after the core line d will be cut (grounded) by the cutter 4. Also, the latch circuits in the fifth and subsequent stages are never set. Therefore, although the light emitting diodes La, Lb, and Lc corresponding to the pins 5a, 5b, and 5c of the connection connector 5 are lit, the light emitting diodes Ld and after that corresponding to the fourth pin 5d of the connection connector 5 are not lit, and the arrangement order is In addition to notifying that it is wrong, it also notifies that the arrangement order of the core wires c is wrong. Each latch circuit FFa, FFb, FF
To reset c and FFd, the power supply VDD may be turned off once.

FIG. 3 shows another embodiment of the present invention, in which latch circuits FFa ', FFb', FFc ', and FFd'.
Type flip-flop is used, the configuration is simpler, and the reset switch SW easily resets. The latch circuits FFa ′, FFb ′, FF
A buffer or an inverter may be inserted in each of the clock input parts of c ′ and FFd ′. Regarding the operation of this embodiment, as in the previous embodiment, when the core wires a, b, c, d are cut by the cutter 4, the connection connector 5 is used.
Check whether each of the pins 5a, 5b, 5c, 5d of is grounded in a predetermined order by the latch circuits FFa ', FFb', FFc ', FFd' consisting of D-type flip-flops. Whether or not the order is incorrect is indicated by lighting the light emitting diodes La, Lb, Lc, and Ld.

[0014]

As described above, the present invention has a connecting connector to which the first connector attached to one end of the multi-core cable is connected, and sequentially determines whether or not the core wire arrangement order is incorrect by the continuity check. Means, notification means for notifying an erroneous arrangement of core wires, and cutting means for aligning and cutting the core wire at the other end of the multi-core cable to which the second connector is attached so as to correspond to the pin arrangement of the second connector. By connecting the cutter of the cutting means to the continuity check terminal of the determination means, the cutter is used as a continuity check probe, and the cutter as a cutting jig is used as a continuity check probe. Since it is diverted, the configuration is simplified and the arrangement order can be checked at the same time when each core wire is cut, so the check operation can be performed. But with performed very easily,
There is an effect that a strict array order check can be performed without the possibility of a check mistake.

Further, a plurality of latch circuits for latching the result of the continuity check between each pin of the connecting connector and the cutter, and the continuity check result input section of the second and subsequent latch circuits are provided at the latch circuit output of the previous stage. When a determination means is formed by a plurality of gate circuits that are opened and closed accordingly, and when conduction between the first pin of the connector and the cutter is detected, 1
While setting the latch circuit of the first stage, open the gate circuit when the output of the latch circuit of the previous stage is in the set state so that the continuity check results of the second and subsequent pins of the connector are input to the latch circuit of the next stage. Because I am
The determination means can be formed with a simple circuit configuration, and an inexpensive array sequence check device can be provided. Furthermore, the notification means is formed by the light emitting diodes that are turned on by the output of each latch circuit, and the presence or absence of an error in the arrangement sequence and the error position are displayed by turning on the light emitting diodes. There is an effect that the work of correcting the arrangement order can be easily performed.

[Brief description of drawings]

FIG. 1 is a circuit diagram of an embodiment of the present invention.

FIG. 2 is a circuit diagram of a main part of the above.

FIG. 3 is a circuit diagram of another embodiment.

4A and 4B are explanatory views of a connector attaching step of a multi-core cable, FIG. 4A is an explanatory view of alignment work, FIG. 4B is a perspective view of an alignment jig, and FIG. 4C is a top view of the multi-core cable. .

[Explanation of symbols]

 1 multi-core cable 2 1st connector 3 2nd connector 4 cutter 5 connection connector 5a-5d pin 7 alignment jig a, b, c, d core wire FFa-FFd latch circuit Qa-Qd transistor La-Ld light-emitting diode

Claims (2)

[Claims] 1. A core wire arrangement sequence checking device for use in a step of attaching a connector to both ends of a multi-core cable formed by bundling a large number of core wires made of covered conductors and for checking the core wire arrangement order. , A determination means for sequentially determining whether or not the core wire arrangement order is wrong by a continuity check, which has a connector to which the first connector attached to one end of the multi-core cable is connected, and a notification for notifying the core wire arrangement order error And a cutting means for cutting the core wire at the other end of the multi-core cable to which the second connector is attached by aligning and cutting the core wire so as to correspond to the pin arrangement of the second connector. By connecting the cutter to a continuity check terminal of the judging means, the cutter is used as a continuity check probe. Click device. 2. A plurality of latch circuits for latching the continuity check results between each pin of the connector and the cutter, and a continuity check result input section of the second and subsequent latch circuits, which is provided at the latch circuit output of the preceding stage. A plurality of gate circuits that are opened and closed in response to the determination means to form a determination means,
When the conduction between the pin and the cutter is detected, the first-stage latch circuit is set, and when the output of the previous-stage latch circuit is in the set state, the gate circuit is opened to connect to the next-stage latch circuit. The core wire arranging order of the multi-core cable according to claim 1, wherein the informing means is formed by light emitting diodes which are turned on by the outputs of the respective latch circuits so that the continuity check results for the second and subsequent pins are respectively input. Checking device.