JPH07162164A - Excess cable handling structure and method - Google Patents

Abstract

PURPOSE:To enable a cable extending from the rear of a unit to be easily connected without increasing the unit in cost. CONSTITUTION:A unit, a unit frame, a front panel, a printed wiring board mounted on the unit frame 2, a part mounted inside a mounting cover, and a mounting cover are represented by figures 1, 2, 3, 4, 5, and 6 respectively. A right-angled connector 8 which pulls out a cable 12 on the same plane with the wiring board mounting plane of the unit frame 2 is provided to the unit frame 2. A first cable support 10 which turns the pulled-out cable 12 forwards is fixed to the unit frame 2 at a right angle. Furthermore, a second cable support 15 which fixes the cable 12 to a case 14 turning it upwards in spiral. A partitioning plate 7 is provided between the right-angled connector 8 and the mounted part 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printed circuit board mounting unit that can be inserted into and removed from a housing of a communication device or the like, and more particularly to a structure for processing an extra length portion of a cable connected between the units and a processing method thereof.

[0002]

2. Description of the Related Art FIG. 2 is an overall perspective view of a printed circuit board mounting unit in a conventional communication device. A conventional method for processing an extra cable will be described with reference to FIG. A printed wiring board mounting unit (hereinafter, simply referred to as a unit) denoted by reference numeral 1 is a unit frame 2 and a front panel 3.
And a printed wiring board 4 mounted on the mounting surface of the unit frame 2. 21 is a printed wiring board 4
A straight type connector is mounted at the rear end of the wiring board 4 so as to stand upright, 22 is a cable-side connector that fits into the connector 21, and 12 is a cable. Reference numeral 23 is a cable support attached to the rear upper end of the unit frame 2 in a direction perpendicular to the unit frame 2, 24 is a cable guide attached to the end of the cable support 23 via a hinge 25, and 26 and 27 are A cable guide and a cable support attached to a housing 14 of a communication device.

In such a configuration, the unit 1 can be freely inserted into and removed from the housing 14 and is configured to be pulled out in the direction of arrow A, and a plurality of units (other units are not shown).
Units 1 of are arranged side by side. The cable 12 is hung on the cable support 23, bundled and fixed to the cable guide 24, fixed to the cable guide 26 so as to have a U shape, and routed in the direction of the adjacent unit by the cable support 27. . When the unit 1 is pulled out in the A direction in such a state, the cable guide 24 is opened in the A direction by the rotation of the hinge 25, and the unit 1 is pulled out in the A direction while the cable 12 is still connected to the unit 1. In addition, the cable 12 is prevented from being disengaged from the cable guide 24 and the lateral extension of the cable 12 is prevented.

FIG. 3 is an overall perspective view of the second conventional example seen from the back side. In the figure, 6 is a mounting cover for covering the mounting components mounted on the printed wiring board 4, and the like.
Is a connector mounted on the printed wiring board 4, 31 is a flat cable, 32 is a unit frame 2, and a unit frame 2
Is a cable support attached so as to be orthogonal to, a relay plate fixed to the housing 14, and a connector 36 on the cable side. Then, between the connector 30 and the connector 35, a flat cable 31 having one end fixed by a lock band 33 on a cable support 32.
Has a U shape and is interposed. In such a configuration, when the unit 1 is pulled out in the A direction, the U-shaped portion of the flat cable 31 expands, and the unit 1 can be pulled out in the A direction with the cable 12 still connected to the unit 1.

[0005]

However, in the above-mentioned first conventional example, the cable 1 is inserted from the rear of the unit 1.
When trying to make a connection of 2, the cable support 23
Moreover, the field of view is blocked by the cable guides 24 and 26, which makes it difficult to fit the cable-side connector 22 to the connector 21 on the printed wiring board 4. Further, in the second conventional example, since the relay plate 34 is provided, the work of fitting the connector 36 is facilitated,
Since the number of relay flat cables 31 is increased, there arises a problem that the transmission characteristics are deteriorated and the cost is increased.

Therefore, the present invention has been made in view of the above-mentioned conventional drawbacks and problems, and an object of the present invention is to facilitate the cable connection from the rear of the unit without increasing the cost. An object of the present invention is to provide a treatment structure and a treatment method for an extra length cable designed.

[0007]

In order to achieve this object, the surplus cable processing structure according to the present invention allows a plurality of units on which printed wiring boards are mounted to be freely inserted into and taken out from the housing, and Is a connection cable at the rear part of the unit, and the connection cable has an extra length portion so that the unit can be pulled out from the housing with the connection cable connected. A connector provided on the rear part of the unit to draw out the extra length portion in the same plane direction as the printed wiring board mounting surface of the unit, and an extra length provided to the unit so as to be orthogonal to the printed wiring board mounting surface of the unit. A first cable support member on which a portion is hung and drawn around in the front direction of the unit; and a first cable support member provided on the housing so as to be parallel to the first cable support member. Comprises a elongated portion which lead to the front direction and the second cable support member for the drawer fixed to the rear direction helically, and a partition plate provided between the connector and the printed wiring board. Further, in the method for treating an extra length cable according to the present invention, the extra length portion is drawn out from the rear end portion of the printed wiring board in the same plane direction as the printed wiring board mounting surface of the unit, and the drawn extra length portion is directed in the unit front direction. And then draw it back and forth as a spiral.

[0008]

According to the present invention, the extra length portion is drawn out from the rear end portion of the printed wiring board in the same plane direction as the printed wiring board mounting surface, and the extra length portion is drawn out in the front direction of the unit, and then the spiral. Since it is designed to be pulled out in the rearward direction, there is no cable guide or cable support that blocks the field of view behind the lead-out portion of the extra length portion.

[0009]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view of a unit in a communication device adopting an extra length cable processing structure according to the present invention, as viewed from the rear side. In the figure, the same components as those in the conventional technique are designated by the same reference numerals, and detailed description thereof will be omitted. 5
Is a mounting component mounted inside the mounting cover 6, 7 is a partition plate disposed between the mounting component 5 and a right angle connector 8 described later, 8 is fixed to the unit frame 2, and a connector 9 on the cable side is provided. Is a right angle connector fitted with the printed wiring board mounting surface of the unit 1 from the same plane direction, and 10 is a unit frame 2 between the connector 9 and the partition plate 7.
A first cable support fixed to the top of the unit frame 2 so as to be orthogonal to the mounting surface of the printed wiring board of the unit frame 2, 15
Is a second cable support fixed to the housing 14 so as to be parallel to the first cable support 10.

In such a structure, the cable 12 is drawn upward from the connector 9 fitted to the right angle connector 8, hung on the first cable support 10, fixed with the lock band 11, and bundled together. To the front of the unit 1. Further, it is spirally drawn backward and upward again and fixed to the second cable support 15 by the lock band 16. Since the cable 12 has a spiral shape in this way, an extra length portion is formed in the cable 12, and the unit 1 can be pulled out in the A direction while the cable 12 is still connected to the unit 1.

Further, since the cable side connector 9 can be fitted by the right angle connector 8 in the same plane as the printed wiring board mounting surface of the unit 1, the fitting of the unit 1 from the rear becomes easy. In addition, since the first cable support 10 is arranged in the front direction of the connector 9 so as to route the cable 12 in the front direction of the unit 1, there is no member that blocks the view in the rear direction of the connector 9, and therefore, The fitting work of the connector 9 from the rear of the unit 1 can be performed very easily. Furthermore, the first and second cable supports 10,
Since only 15 is required, the structure is simplified, the number of parts is significantly reduced, and the cost can be reduced. Further, since the partition plate 7 is provided between the right angle connector 8 and the mounting component 5, the cable 12 does not come into contact with the mounting component 5.

[0012]

As described above, according to the present invention, since the connector for drawing out the extra length portion in the same plane direction as the printed wiring board mounting surface of the unit is provided, the connector fitting operation becomes easy. In addition, since the first cable support member which is provided with the drawn extra length portion and draws the extra length portion in the front direction of the unit is provided in the unit so as to be orthogonal to the pulling direction of the unit, the first cable support member is provided behind the fitting portion of the connector. Since there is no member, the connector fitting operation from the rear of the unit can be performed very easily. Furthermore, since only the first and second cable support members need be provided as members for fixing the cables, the structure is simplified, the number of parts is significantly reduced, and the cost can be reduced. Further, since the partition plate is provided between the connector and the printed wiring board, the cable does not come into contact with the mounted components mounted on the printed wiring board.

[Brief description of drawings]

FIG. 1 is a perspective view of a unit adopting a treatment structure for an extra length cable according to the present invention, as viewed from the back side.

FIG. 2 is a perspective view seen from the front of a unit that employs a conventional excess length cable processing structure.

FIG. 3 is a perspective view of a unit adopting a second example of a conventional extra length cable processing structure as viewed from the rear side.

[Explanation of symbols]

 2 unit frame 4 printed wiring board 5 mounting component 7 partition plate 8 right angle connector 9 cable side connector 10 first cable support 12 cable 14 housing 15 second cable support

Claims (2)

[Claims] 1. A plurality of units on which a printed wiring board is mounted can be freely taken in and out of a housing, and a connection cable is used to connect each unit at a rear portion of the unit, and the unit is removed from the housing while the connection cable is connected. A structure for processing an extra length cable in which an extra length portion is provided in the connection cable so that it can be pulled out, and the extension cable is provided in the rear portion of the unit,
A connector that draws the extra length portion in the same plane direction as the printed wiring board mounting surface of the unit, and the extra length portion that is provided in the unit so as to be orthogonal to the printed wiring board mounting surface of the unit A first cable support member that is routed around the first cable support member and a second cable support member that is provided in the housing so as to be parallel to the first cable support member and that pulls out and fixes a surplus length portion that is routed forward in a backward direction. And a partition plate provided between the connector and the printed wiring board. 2. A plurality of units on which a printed wiring board is mounted can be freely taken in and out of a housing, and a connection cable is used to connect between the units at a rear portion of the unit, and the unit is removed from the housing while the connection cable is connected. A method for treating an extra length cable in which an extra length portion is provided on the connection cable so that it can be pulled out, wherein the extra length portion is provided in the same plane direction as the printed wiring board mounting surface of the unit from the rear end portion of the printed wiring board. A method for treating an extra cable, which is characterized in that the extra cable is pulled out, the extra cable is pulled out in the forward direction of the unit, and then spirally drawn out in the backward and upward directions.