JPH08242085A - Method of processing junction cable and structure for the processing - Google Patents

Abstract

PURPOSE: To realize simple wiring operation and improve operativity of loading and unloading of a printed circuit board unit while enabling loading and unloading of the printed wiring board unit in a small space keeping a cable connected. CONSTITUTION: A unit 1 whereon a printed circuit board 3 is mounted is provided drawably in the direction of arrow C to a junction terminal plate 4 fixed to a main body. A cable supporting member 6 is integrally provided to a rear part of the unit 1. A junction cable 5 is comprised of a plurality of wiring members and is covered with a flexible unwoven fabric 10 while each wiring member is arranged perpendicularly to the direction indicated by arrow C and parallel in a horizontal direction. The junction cable 5 covered with the unwoven fabric 10 is hung on the cable supporting member 6 and is connected to a connection connector 3a and a junction connector 4a with an excess part sagging down.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed wiring board mounting unit for use in communication equipment or the like in which a printed wiring board can be taken in and out. Regarding processing structure.

[0002]

2. Description of the Related Art FIG. 5 is a perspective view of an example of a conventional cable processing structure of an electric device unit which can be taken out and put in (see Japanese Patent Laid-Open No. 62-15897). In FIG. 5, a movable table 102 is supported on a guide rail 103 fixed to a main body (not shown) so as to be capable of reciprocating in the front-rear direction (the direction of arrow A in the figure). The electric device unit 101 from which the plurality of cables 105 are drawn out is fixed. A pair of support plates 104 are erected at the rear end of the moving table 102, and a moving plate 106 is rotatably provided between the support plates 104. The cables 105 are arranged in parallel on the moving plate 106 and are fixed by fixing means. A fixed plate 107 is provided on the main body behind the movable table 102, and the cable is fixed to the fixed plate 107 so as to be aligned in the pulling direction. Further, the cable 105 is fixed to the intermediate plate 108 between the moving plate 106 and the fixed plate 107.

Based on the above configuration, the electric equipment unit 10
When 1 is pushed into the main body, the cables 105 sag in a U shape due to the weight of the intermediate plate 108 while being arranged in an orderly manner, and are housed between the electric device unit 101 and the main body.

FIG. 6 is a sectional view of another example of a conventional cable processing structure for an electric equipment unit (Japanese Patent Laid-Open No. 63-62).
(See Japanese Patent Publication No. 300). In FIG. 6, the apparatus main body 201 is detachably provided with a printed wiring board 202 from which a cable 205 is pulled out from the back surface. Device body 2
01 are stacked in a vertical rack (not shown) in multiple stages, and the printed wiring boards 202 of each device main body 201 are connected to each other by an inter-device cable 208 connected to the front part thereof.

Inside the apparatus main body 201, above the printed wiring board 202, the terminal portion 20 to which the cable 205 drawn from the printed wiring board 202 is connected.
It is a space for 4. The terminal portion 204 is provided slidably in the front-rear direction (arrow B direction) on the side frame 203 fixed to the side wall of the apparatus main body 201. Therefore, the cable 205 has an appropriate extra length according to the moving distance of the terminal portion 204. In addition, the terminal unit 204
A connector 206 to which an external cable (not shown) is connected is provided on the front surface of the connector, and by connecting the external cable to the connector 206, the external cable and the printed wiring board 202 are connected. The external cable is introduced into the apparatus body 201 through a cable introduction port formed on the side wall of the apparatus body 201.

When the printed wiring board 202 is mounted on the apparatus main body 201 based on the above configuration, first, the terminal portion 204 is pulled out to the front to connect the external cable to the connector 20.
Connect to 6. Then, the terminal unit 204 is pushed in and the inter-device cable 208 is connected.

[0007]

However, the above conventional example has the following problems.

In the structure shown in FIG. 5, since a plurality of cables are fixed one by one, there is a problem that mounting efficiency is poor and wiring work takes time. Furthermore, since the coating of the cable is hard, the flexibility is poor, and the operability when inserting the electrical equipment unit is poor. In order to improve the operability at the time of insertion, it is necessary to increase the bending radius of the cable when pushing the electric equipment unit,
The space behind the electric equipment unit becomes large.

On the other hand, the structure shown in FIG. 6 is applied only in the case where the structure is connected on the front surface of the apparatus main body, and the printed wiring board cannot be taken in and out with the cable connected. Met.

Therefore, the present invention provides a method and structure for processing a relay cable that enables a printed wiring board unit to be taken in and out with a cable connected in a small space, and that wiring work is simple and the operability of taking in and out is improved. The purpose is to provide.

[0011]

In order to achieve the above object, a method of treating a relay cable according to the present invention is directed to a main body of an electric device provided with a unit on which a printed circuit board is mounted so that the unit can be pulled out from the main body. A method for processing a relay cable comprising a plurality of wiring members having an extra length according to an amount of pulling out the unit for connecting a terminal portion on a rear surface portion to the printed wiring board, wherein the plurality of wiring members are provided. In a state in which the relay cable is covered with a flexible coating so as to be arranged in parallel in a horizontal direction and in a direction vertical to the unit withdrawing direction, the extra length of the relay cable is slackened downward, A relay cable is fixed to a rear portion of the unit and a terminal portion of the main body.

According to the relay cable processing structure of the present invention, the terminal portion on the rear surface of the main body and the printed wiring board of the electric equipment in which the unit on which the printed circuit board is mounted can be pulled out from the main body are provided. To connect
In the processing structure of a relay cable composed of a plurality of wiring members having an extra length according to the amount of pulling out of the unit, in the relay cable, the plurality of wiring members are vertical and horizontal to the pulling-out direction of the unit. The relay cable is covered with a flexible coating so as to be arranged in parallel with each other in a direction, and the relay cable is slackened downward by the extra length, and the relay cable is connected to the rear portion of the unit and the terminal portion of the main body. It is characterized by being held in and.

Further, a holding portion of the relay cable for holding the rear portion of the unit and the terminal portion of the main body is covered with a rubber bushing, and a portion of the relay cable for holding the rear portion of the unit. A rubber bushing may be covered on an intermediate portion between the holding portion and the holding portion for holding the terminal portion of the main body.

Further, a cable support member is provided at the rear portion of the unit and the terminal portion of the main body so as to be rotatable about an axis parallel to the arrangement direction of the wiring members of the relay cable. It may be held by each cable support member.

[0015]

In the processing method and processing structure of the relay cable of the present invention configured as described above, the extra length of the relay cable is slackened downward and held, and the unit can be taken in and out with the relay cable connected. However, by covering the relay cable composed of a plurality of wiring members with a coating, the relay cable is bundled and the wiring work of the relay cable is simplified. In addition, since each wiring member of the relay cable is covered in a vertical arrangement in the direction of pulling out the unit and in a horizontal direction and covered with a cover, the relay cable does not twist when the unit is taken in or out, It stays in order. Further, since the coating is flexible, the flexibility of the relay cable is good, the operation at the time of inserting the unit is easy, and the space between the rear portion of the unit and the terminal portion of the main body is not required so much.

Further, particularly in the structure for processing the relay cable, the relay cable is protected by the bushing by covering the holding portions of the relay cable to the rear portion of the unit and the terminal portion of the main body with rubber bushings. This prevents disconnection of the wiring member due to external force applied to the relay cable when holding the relay cable. Further, by covering the intermediate portion of the two holding portions of the relay cable with a rubber bushing, the weight of the bushing is added to the intermediate portion of the relay cable. as a result,
The relay cable is easily bent downward, and twisting of the relay cable is more reliably prevented.

In addition, the relay cable is held by the cable supporting members rotatably provided at the rear portion of the unit and the terminal portion of the main body, so that the holding portion of the relay cable rotates depending on the pulling amount of the unit. Since it moves, even if the unit is pulled out to the full length of the relay cable, the relay cable will not be forcibly bent.

[0018]

Embodiments of the present invention will now be described with reference to the drawings.

(First Embodiment) FIG. 1 is a perspective view of a first embodiment of a relay cable processing structure according to the present invention, which is applied to a communication device.

In FIG. 1, the unit 1 is provided so as to be movable in the direction of arrow C with respect to the main body (not shown) of the communication device. As a method for providing the unit 1 to be movable,
Various methods are used such as providing a guide rail (not shown) on the main body, supporting the unit 1 on the guide rail, fixing the unit to a moving base (not shown), and supporting the moving base on the guide rail. To be Further, the unit 1 has a unit frame 2 to which the printed wiring board 3 is attached, and at the upper end of the rear end of the unit frame 2, the cable is provided in a direction (horizontal direction) orthogonal to the mounting surface of the printed wiring board 3. The support member 6 is integrally provided. The printed wiring board 3 is provided with a connecting connector 3a to which a relay cable 5 described later is connected.

On the other hand, the unit 1 is provided at the rear end of the main body.
A relay terminal board 4 for connecting the printed wiring board 3 attached to the unit to another unit or an external device (not shown) is fixed. The relay terminal board 4 is provided at its upper end with a relay connector 4a to which the relay cable 5 is connected. By connecting the connection connector 3a and the relay connector 4a with each other, the relay cable 4 is printed. The wiring board 3 can be connected to other units and external devices on the back surface of the main body.

The relay cable 5 is composed of a plurality of wiring members, and in the state where the wiring members are arranged in parallel in a direction vertical and horizontal to the direction of pulling out the unit 1, a plasticized fiber is used as a coating. Nonwoven 10
Covered with. Further, the relay cable 5 has an extra length corresponding to the amount of pulling out the unit 1, and after being hung on the cable support member 6, the extra length is U between the cable support member 6 and the relay terminal board 4. It is held by slacking downward in the shape of a letter.

The relay cable 5 is held by fixing it at two places, that is, the portion hooked on the cable support member 6 and the lower portion of the relay connector 4a. That is, in the portion hung on the cable support member 6,
The relay cable 5 is sandwiched between the cable support member 6 and the pressing plate 8a, and fixed by the screw 9a. Similarly, below the relay connector 4a, the relay cable 5 is sandwiched between the relay terminal board 4 and the pressing plate 8b, and fixed by the screw 9b.

The fixed portion of the relay cable 5 to the cable support member 6 and the fixed portion to the relay terminal board 4,
Further, rubber bushings 11 are covered on the intermediate portions of both fixing portions.

These bushings 11 will be described with reference to FIG. The bushing 11 is a flat member that surrounds the outer circumference of the relay cable 5. A groove 11a is formed on the inner surface of the bushing 11 according to the outer shape of the relay cable 5 in a state where the wiring members are arranged in parallel. Before the relay cable 5 is connected to the connection connector 3a and the relay connector 4a, the bushing 11 is covered with the relay cable 5 by inserting the relay cable 5 so that each wiring member corresponds to the groove 11a. Further, the bushing 11 is formed with a through hole 11b through which a screw for fixing the relay cable 5 to the cable support member 6 or the relay terminal board 4 passes.

As described above, the shape of the groove 11a is in conformity with the outer shape of the relay cable 5 in a state in which the wiring members are arranged in parallel. Therefore, in the relay cable 5, the wiring members are arranged in parallel. It is held by the bushing 11 while maintaining the open state.

As described above, by covering both fixing portions of the relay cable 5 with the bushings 11, it is possible to prevent the relay cable 5 from being crushed and broken when the relay cable 5 is clamped and fixed by the pressing plates 8a and 8b. To be done.

In the relay cable processing structure configured as described above, in order to connect the connecting connector 3a and the relay connector 4a with the relay cable 5, first, the relay cable 5 is placed in parallel with each wiring member. With a non-woven fabric 10 and, at the above-mentioned predetermined site, a bushing 11
Cover.

Next, the relay cable 5 is connected to the connecting connector 3a and the relay connector 4a and is hung on the cable supporting member 6. Then, one of the two parts covered with the bushing 11 is connected to the cable support member 6 and the pressing plate 8.
It is sandwiched by a and fixed by a screw 9a, and the other is sandwiched by a relay terminal board 4 and a holding plate 8b and fixed by a screw 9b. As a result, the relay cable 5 is slackened in a U-shape between the unit 1 and the relay terminal board 4 and held.

As described above, the relay cable 5 is bundled with the flexible non-woven fabric 10 and is covered therewith, so that the relay cable 5 is processed in an orderly manner. Moreover, in order to fix the relay cable 5, it is only necessary to fix the two positions on the unit 1 side and the relay terminal board 4 side, and the extra length processing of the relay cable 5 can be easily performed by an extremely simple work. it can.

By covering the relay cable 5 with the flexible nonwoven fabric 10, the flexibility of the relay cable 5 is improved. This facilitates the operation of taking in and out the unit 1 with the relay cable 5 still connected, and
The space between the unit 1 and the relay terminal board 4 can be reduced. In particular, by covering the intermediate portion of the relay cable 5 with the bushing 11, the weight of the bushing 11 facilitates urging the relay cable 5 downward, and the relay cable 5 is not twisted when the unit 1 is taken in and out. It is processed without order.

(Second Embodiment) In this embodiment, the structure of the fixing portion of the relay cable is further devised.

First, the fixing portion to the unit will be described. FIG. 3 is a side view of the fixing portion to the unit of the second embodiment of the relay cable processing structure of the present invention.
In FIG. 3, the unit frame 22 of the unit 21 is provided with a first cable support member 26 around an axis 26a perpendicular to a mounting surface of a printed wiring board (not shown) (direction of arrow D).
Is rotatably provided. The relay cable 25 in which the first cable support member 26 is covered with the non-woven fabric and covered with the bushing 31 is provided in the same manner as in the first embodiment.
It is sandwiched between the holding plate 28a and fixed by screws.

Next, the fixing portion to the relay terminal board will be described. FIG. 4 is a side view of the fixing portion of the relay cable processing structure of the present invention to the relay terminal board. In FIG. 4, on the side frame of the relay terminal board 24,
The second cable support member 27 is rotatably provided around a shaft 27a (see arrow E) parallel to the shaft 26a (see FIG. 3) of the first cable support member 26. This second
Similarly to the first embodiment, the relay cable 25 covered with the non-woven fabric and covered with the bushing 31 is sandwiched between the holding plate 28b and the cable support member 27 and is screw-fixed.

As described above, the relay cable 25 is rotatably fixed at the respective fixing portions, and when the unit 21 is pulled out by the extra length of the relay cable 25, the first cable support member 26 and the first cable support member 26 The surfaces of the second cable support members 27 to which the relay cables 25 are fixed are respectively rotated almost horizontally. This prevents the relay cable 25 from being forcibly bent even if the unit 21 is pulled out to the full length of the extra length of the relay cable 25. Therefore, the amount of pulling out the unit 21 can be increased, and the workability of pulling out the unit 21 is improved.

[0036]

As described above, according to the method and structure for treating a relay cable of the present invention, by covering the relay cable composed of a plurality of wiring members with a coating, the relay cable is bundled and the wiring of the relay cable is performed. Work can be done easily. Further, since each wiring member of the relay cable is arranged in parallel in the direction perpendicular to the unit withdrawing direction and in the horizontal direction and covered with the covering, the relay cable can be processed neatly. Further, since the coating is flexible, the operation when inserting the unit can be facilitated and the space between the rear portion of the unit and the terminal portion of the main body can be reduced.

Further, particularly in the structure for processing the relay cable, the holding portions of the relay cable to the rear portion of the unit and the terminal portion of the main body are covered with rubber bushings, respectively, so that the wiring member by the external force applied to the relay cable is removed. It is possible to prevent disconnection. Further, by covering the intermediate portion of the two holding portions of the relay cable with a rubber bushing, the relay cable is easily bent downward,
It is possible to more reliably prevent the twisting of the relay cable.

In addition, by holding the relay cable on the cable supporting members rotatably provided on the rear portion of the unit and the terminal portion of the main body, the pulling-out amount of the unit can be increased and the unit can be pulled out. It is possible to improve workability.

[Brief description of drawings]

FIG. 1 is a perspective view of a first embodiment of a relay cable processing structure of the present invention.

FIG. 2 is a cross-sectional view of a bushing of the relay cable processing structure shown in FIG.

FIG. 3 is a side view of the fixing portion to the unit of the second embodiment of the relay cable processing structure of the present invention.

FIG. 4 is a side view of a fixing portion of the relay cable processing structure of the present invention to the relay terminal board.

FIG. 5 is a perspective view of an example of a conventional cable processing structure of an electric device unit that can be put in and taken out.

FIG. 6 is a cross-sectional view of another example of the conventional cable processing structure of the electric device unit.

[Explanation of symbols]

 1, 21 units 2, 22 unit frame 3 printed wiring board 3a connection connector 4, 24 relay terminal board 4a relay connector 5, 25 relay cable 6 cable support members 8a, 8b, 28a, 28b holding plate 9a, 9b screw 10 Non-woven fabric 11,31 Bushing 11a Groove 11b Through hole 26 First cable support member 26a, 27a Shaft 27 Second cable support member

Claims (5)

[Claims] 1. An electric device in which a unit on which a printed circuit board is mounted is provided so as to be pulled out from a main body, in order to connect a terminal portion on a rear surface of the main body to the printed wiring board, A method of processing a relay cable comprising a plurality of wiring members having an extra length according to the amount of pulling out, wherein the plurality of wiring members are arranged in parallel in a direction vertical and horizontal to the pulling direction of the unit. In the state that the relay cable is covered with a flexible coating, and the excess length of the relay cable is slackened downward,
A method of treating a relay cable, comprising fixing the relay cable to a rear portion of the unit and a terminal portion of the main body. 2. An electric device in which a unit having a printed circuit board mounted thereon is provided so as to be pulled out from the main body, in order to connect the terminal portion on the rear surface of the main body to the printed wiring board, the unit of the unit is provided. In the processing structure of a relay cable including a plurality of wiring members having an extra length according to a pullout amount, in the relay cable, the plurality of wiring members are perpendicular to a pulling direction of the unit and parallel to a horizontal direction. As arranged, it is covered with a flexible coating, with the extra length of the relay cable sagging downward,
A relay cable processing structure, wherein the relay cable is held by a rear portion of the unit and a terminal portion of the main body. 3. The processing structure for a relay cable according to claim 2, wherein a holding portion of the relay cable for holding the rear portion of the unit and the terminal portion of the main body is covered with a rubber bushing. 4. The rubber bushing is placed on an intermediate portion between the holding portion of the relay cable to the rear portion of the unit and the holding portion to the terminal portion of the main body of the relay cable. Relay cable processing structure. 5. A cable support member is provided at a rear portion of the unit and a terminal portion of the main body so as to be rotatable about an axis parallel to an arrangement direction of wiring members of the relay cable, and the relay cable is The relay cable processing structure according to claim 2, 3 or 4, which is held by each cable support member.