JPH0739005U - Optical cable extra length processing structure - Google Patents

Abstract

(57) [Abstract] [Purpose] Allows high-density mounting of units, enables the excess length treatment of a large amount of optical cables, and enables the unit to be removed without removing it from the device housing, thus increasing the efficiency of excess length treatment work. It provides a good cable surplus length handling structure. [Structure] Optical cable extra length when an optical cable extending from an external device and having a considerable extra length portion is connected to a plurality of units that are detachably mounted between racks arranged opposite to each other in an apparatus housing In the processing structure, a cable saddle 12 is provided which has a cable introduction port 7 for introducing the extra length portion 3a of the optical cable 3 and a cable outlet 8 which is pulled out, and which holds the extra length portion 3a in a bundled state. The extra cable processing drawer 6 is provided so as to be freely drawn outside the rack 1a in the apparatus housing in which the unit 1 is mounted. Further, an opening 11 is provided on the bottom surface of the extra length cable processing drawer 6 so that the extra length cable processing drawer 6 is formed by a frame.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a communication device using an optical cable, and more particularly to an optical cable surplus length processing structure for processing a surplus length of an optical cable connected to a unit mounted in the communication device.

[0002]

[Prior art]

 FIG. 2 is a perspective view showing an optical cable surplus length processing structure in a conventional communication device. In the figure, reference numeral 1 is a unit having a plurality of electronic components mounted thereon, which is made of a rectangular thin plate material and has a tip end. A plurality of connectors 2 for connection are mounted on the side edges, and the unit 1 is inserted with the connector 2 for connection at the top in an upright state in the housing of a communication device (not shown). At the same time, it is mounted so that it can be inserted into and removed from the housing by pulling it out toward you.

An optical cable 3 is connected to the unit 1 from an external device, and has a considerable extra length portion 3a. That is, the extra length portion 3a of the optical cable 3 is required to secure a considerable length when connecting to the unit mounted on the communication device, and this is extended from other external devices. This is because, when connecting the existing optical cable 3 to the communication device, it is necessary to secure a large extra length as much as possible in order to be able to connect the optical cable 3 regardless of the arrangement.

Reference numeral 4 denotes a cable pressing member for mounting the extra length portion 3a of the optical cable 3 on one side of the unit 1. The cable pressing member 4 fits and holds the extra length portion 3a of the optical cable 3 for about half a month. It is composed of a mold holding portion 4a and a mounting portion 4b for mounting the holding portion 4a at a predetermined position of the unit 1 with a screw 5.

In the cable surplus length treatment structure having such a configuration, in order to process the surplus length of the optical cable 3, first, the surplus length portion 3a of the optical cable 3 is bundled into a plurality of loops as shown in the figure, A part of the bundled ring shape is fitted into the holding portion 4a of the cable pressing member 4. In this state, the mounting portion 4b of the cable pressing member 4 is fixed to a predetermined position of the unit 1 with the screw 5. By performing this at a plurality of points depending on the size of the ring-shaped portion, the excess length portion of the optical cable 3 is processed in a state of being bundled in a ring shape on one side of the unit 1 as shown in the figure.

When the extra length portion of the optical cable 3 thus treated is pulled out and used, first, the unit 1 is pulled out from the inside of the apparatus casing to be exposed, and then the cable pressing member 4 is fixed to the unit 1. Remove the screw 5 of the attached portion 4b. By this, the cable pressing member 4 is detached from the unit 1, and the optical cable 3 fitted in the half-moon shaped holding portion 4a of the cable pressing member 4 is taken out.

[0007]

[Problems to be solved by the device]

 However, in the above-described technology of the conventional optical cable surplus length processing structure, since the surplus portion 3a of the optical cable 3 is attached and supported on one side of the unit 1 via the cable pressing member 4, the cable is attached to the unit 1. There is a problem in that it is necessary to secure a space for mounting the pressing member 4, which deteriorates the mounting condition of other components in the unit 1 and reduces the mounting density of the unit.

Further, the extra length portion 3a of the optical cable 3 is bundled in a ring shape, fitted into the half-moon shaped holding portion 4a of the cable pressing member 4, and fixed by the screw 5 at a predetermined position of the unit 1. Due to the size of the cable pressing member 4 and the shape of the unit 1, it was not possible to expect a large amount of extra long cables to be processed. Further, since the processing work of the extra length portion 3a of the optical cable 3 cannot be performed in a state where the unit 1 is mounted on the rack in the casing of the communication device, it is necessary to perform the adjustment work of the extra length portion 3a. Had a problem that the unit 1 had to be pulled out from the housing, resulting in a significant decrease in work efficiency.

The present invention has been made in order to solve the above-mentioned problems, and enables high-density mounting without lowering the mounting density of the unit, and also enables the excess length treatment of a large number of optical cables. Moreover, it is intended to provide an excellent cable surplus length handling structure with high efficiency of surplus length handling work by making it possible to easily perform the adjustment work of the excess length portion without removing the unit from the apparatus housing. .

[0010]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention has a plurality of units removably mounted between racks arranged opposite to each other in an apparatus housing, and has an extra length portion extending from an external apparatus for a corresponding amount. In an optical cable surplus length treatment structure for accommodating and processing the extra length portion of the optical cable in a state of being bundled in the device casing when connecting the optical cable, a cable introduction port for introducing the extra length portion of the optical cable And a cable outlet for introducing the introduced excess length portion, and a cable-shaped holding means for aligning and holding the excess length portion in a bundled state inside, there is provided a rectangular extra length cable treatment drawer. It is provided so that it can be pulled out outside the rack inside the device housing in which the unit is mounted, and the extra length of the optical cable is introduced from the cable introduction port provided in this extra length cable processing drawer. And it holds the wire arranging the extra length portion by lifting means, in which it was decided to processed removably accommodated from the cable outlet to be connected to the unit.

Further, an opening is provided on the bottom surface of the extra-length cable processing drawer to form the extra-length cable processing drawer by a frame.

[0012]

[Action]

 In order to process the extra length portion of the optical cable with the above-described configuration, first, the extra length cable processing drawer is pulled out from the device housing. Then, the extra length portion of the optical cable extended from the external device is introduced into the drawer from the cable introduction port provided on one side of the extra cable processing drawer.

Next, the optical cable guided into the drawer is supported by the cable holding means provided on the bottom surface of the extra-length cable processing drawer, and arranged in an annular shape to be housed. In this way, when the terminal of the extra length part is accommodated in the drawer so that it remains for a predetermined length, it is taken out from the cable outlet. When the optical cable is taken out from the drawer in this way, the extra-length cable processing drawer is pushed in until the rear end surface of the drawer comes into contact with the device housing. After this, the end part of the optical cable led out from the extra length cable treatment drawer is connected to the unit.

As described above, the processing of the extra length portion of the optical cable can be performed in the mounted state without pulling out the unit, the processing work is facilitated, and the high density mounting of the unit becomes possible.

[0015]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an overall perspective view showing a cable surplus length processing structure of the present embodiment. In the figure, reference numeral 1 is a unit 1 mounted on a rack 1a provided in a casing of a communication device, Not mounted, but many electronic components are mounted. In addition, a connector for connection (not shown) is mounted on the tip side of the unit 1, and by inserting the unit 1 into the rack 1a, it is fitted with a device-side connector (not shown). Enables connection with communication devices.

Reference numeral 3 denotes an optical cable 3 connected to the unit 1, which secures an extra length portion 3a corresponding to the connection between an external device and the communication device. Reference numeral 6 is a drawer for processing an extra length cable that accommodates the extra length portion 3a of the optical cable 3 in a lined state, and a plurality of drawers 6 are arranged in parallel below the rack 1a on which the unit 1 is mounted. As shown in the figure, this extra cable treatment drawer 6 is of a substantially box shape with the entire upper surface opened, and has a U-shaped cable inlet 7 for guiding the optical cable 3 into the drawer 6 on the front side. A plurality of cable outlets 8 for individually guiding the optical cables 3 housed in the drawer 6 to the outside are formed. The cable outlet 8 is also cut out from the upper end on the front side, and the grommet 9 is fitted into the cable outlet 8 to hold the optical cable 3 through the grommet 9.

Reference numeral 10 is a knob screw also provided on the front side of the extra cable treatment drawer 6, and by tightening the knob screw 10, the extra cable treatment drawer 6 is fixed to the apparatus housing and loosened. It is designed so that it can be unlocked and pulled out to the front side. Reference numeral 11 denotes an opening formed on the bottom surface of the extra-length cable processing drawer 6, and by forming the opening 11, the extra-length cable processing drawer 6 is formed as a frame body, whereby a communication device is provided. The ventilation hole from the bottom side is secured to take in the outside air to cool the inside of the housing, and the extra cable handling drawer 6 itself is made lighter.

Reference numeral 12 is a cable saddle as a first cable holding means provided along the periphery of the opening 11, and the cable saddle 12 has a hook portion 12a at its upper end and is flexible. The pair of arms 12b having the above are arranged so that their hook portions 12a face each other with a slight gap secured therebetween. Therefore, when the optical cable 3 is held by the cable saddle 12, the arm portion 12b bends outward when the optical cable 3 is inserted so as to push the slight gap between the opposed hook portions 12a. Since the gap between the hook portions 12a becomes wide, the optical cable 3 passes through the hook portions 12a and enters between the arms 12b. When the optical cable 3 enters, the outwardly curved arm 12b returns to its original shape, and the optical cable 3 is held between the arms 12b so that the upper end is closed by the hook portion 12a. There is.

The attachment of the cable saddle 12 to the bottom surface has a locking hole (not shown) formed in the bottom surface, and a projection portion having a claw formed at the lower end of the cable saddle 12 in the locking hole. When the is inserted, the claw portion is hooked on the lower surface side of the bottom surface, so that it can be attached with one touch. Reference numeral 13 denotes a cable saddle as a second cable holding means, which has the same shape as the cable saddle 12 and is arranged so as to project to the outside from the front side of the extra-length cable processing drawer 6. .

Although FIG. 1 has a structure in which three optical cables 3 are accommodated in one extra cable processing drawer 6, the number is not limited to three, and for example, one large cable is used. It is also possible to form a drawer 6 for processing the extra length cable, and to house all the optical cables 3 in order by bundling several of them. When processing the extra length portion 3a of the optical cable 3 with the configuration described above, first, the knob screw 10 is loosened to release the fixed state, and the extra length cable processing drawer 6 is pulled out from the inside of the casing of the communication device to the front side. . As a result, the inside of the extra cable processing drawer 6 is exposed, and then multiple optical cables 3 (three in the figure) that have been extended from the outside are bundled to process the extra cable processing. The cable 6 is inserted into the cable saddle 13 on the front side of the drawer 6 from the front end side so as to penetrate the cable saddle 13 and then guided from the cable introduction port 7 into the extra cable processing drawer 6.

Next, the extra length portion 3 a of the optical cable 3 guided into the extra length cable processing drawer 6 is fitted into the cable saddle 12 provided on the bottom surface of the extra length cable processing drawer 6. Then, the loop 11 is arranged so as to surround the opening 11. Then, when the optical connector provided in the terminal part is housed so as to remain for a predetermined length, the optical cables 3 are divided into ones, and the grommets 9 are individually attached to each, and the grommets 9 are cut into the cable outlet 8. By fitting from the cutout, the optical cable 3 is led out from the extra length cable processing drawer 6 to the outside.

When the optical cable 3 is pulled out in this manner, the extra-length cable processing drawer 6 is pushed into the apparatus housing, and when the rear end surface of the extra-length cable processing drawer 6 is pushed until it hits the apparatus housing, the front side is mounted. Since it is on the same surface as 1a, it is fixed by a knob screw 10 provided on the front side. The terminal portion of the optical cable 3 led out from the extra length cable processing drawer 6 is connected to the unit 1 mounted on the upper rack 1a.

[0023]

[Effect of device]

 As described above, according to the present invention, an optical cable extending from an external device and having a considerable extra length is provided in a plurality of units that are removably mounted between racks arranged opposite each other in the device housing. In the optical cable surplus length treatment structure for accommodating and processing the extra length portion of the optical cable in a state of being bundled in the device casing when connecting the optical cable, a cable introduction port for introducing the extra length portion of the optical cable, The unit is provided with a rectangular-shaped extra length cable treatment drawer having a cable outlet for drawing out the extra length portion introduced and having cable holding means for aligning and holding the extra length portion in a bundled state. It is provided so that it can be pulled out to the outside of the rack in the equipment housing in which it is mounted, and the extra length of the optical cable is introduced from the cable inlet provided in this extra length cable treatment drawer. And holds the wire arranging the extra length portion by means in which this was decided to processed removably accommodated from the cable outlet to be connected to the unit.

For this reason, the extra length of the optical cable can be treated by pulling out the extra length cable treatment drawer, so that it is not necessary to pull out the unit while it is still mounted in the rack, and the screw etc. Since the work that requires a tool for removing the tool is not required, the processing work becomes easy and the work efficiency is improved. Further, since the extra length portion is not fixed to the unit, the fixing space for the cable pressing member, which was necessary to fix the extra length portion, does not require a fixing space, which can be effectively used for component mounting. Therefore, high-density mounting of units is possible.

Further, since the cable is accommodated in the extra cable processing drawer provided on the outside of the rack without using the components such as the cable pressing member shown in the conventional example, a large amount of extra cable is provided. Can be accommodated. By forming an opening on the bottom surface of the extra cable handling drawer, the extra cable handling drawer is formed of a frame body, thereby reducing the weight of the extra cable handling drawer. In addition to the above, it is possible to secure the ventilation port from the outside, cool the heat generated by the unit in the device housing, and prevent the malfunction of the unit.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing a cable excess length processing structure of the present embodiment.

FIG. 2 is a perspective view showing an optical cable surplus length processing structure in a conventional communication device.

[Explanation of symbols]

 1 unit 1a frame 3 optical cable 3a extra length part 6 extra length cable processing drawer 7 cable inlet 8 cable outlet 11 opening 12 cable saddle

Claims (2)

[Scope of utility model registration request] 1. When connecting an optical cable, which extends from an external device and has a considerable extra length portion, to a plurality of units that are removably mounted between racks disposed opposite to each other in an apparatus housing, In an optical cable surplus processing structure for accommodating and processing the surplus portion of the optical cable in a state of being bundled in the apparatus housing, a cable introducing port for introducing the surplus portion of the optical cable and pulling out the introduced surplus portion. A rectangular extra-length cable processing drawer having a cable outlet and having a cable holding means for aligning and holding the extra-length portion in a bundled state is attached to a rack in an apparatus housing in which the unit is mounted. It is provided so that it can be pulled out to the outside of the cable, and the extra length of the optical cable is introduced from the cable introduction port provided in the extra cable processing drawer, and the extra length is aligned by the cable holding means. Holding Te, optical cable extra length handling structure, which comprises treatment were housed removable from the cable outlet so as to connect it to the unit. 2. An opening is provided in the bottom surface of the extra-length cable processing drawer for accommodating the extra-length portion of the optical cable, and the extra-length cable processing drawer is formed by a frame. The optical cable extra length processing structure according to claim 1.