JP2004080885A - Processing structure for cable slack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a processing structure for cable slack, capable of accommodating excess lengths of a number of optical cables connected with a communication device so that they do not become obstacles. <P>SOLUTION: A lower-stage cable support 10 is attached horizontally to the back surface of a fan unit 2, provided at an upper part of the back surface of the communication device 1, and has four lower-stage cable-placing parts 17. The respective lower-stage cable placing parts 17 retain a loop 21 of the optical cables 20 with four wire saddles 11. The upper-stage cable support 13 has four leg parts 15, and the lower parts of the leg parts 15 are inserted in attachment holes 12, provided at the lower-stage cable support 10 to be mounted on the lower-stage cable placing parts 17. The upper surface of the upper-stage cable support 13 is an upper-stage cable placing part 34, and retains the loop 21 of the optical fiber cables 20 with four wire saddles 14. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a cable extra-length processing structure, and more particularly to a cable extra-length processing structure for storing an extra length of an optical cable in a loop when connecting the optical cable to a communication device.
[0002]
[Prior art]
FIG. 8 is a perspective view of a conventional cable extra length processing structure disclosed in Japanese Patent Application Laid-Open No. 8-222866.
[0003]
In FIG. 8, a cable support 110 formed of a horizontal shelf is fixed to a unit mounting frame (not shown) of the communication device via a support arm 112. Three cable mounting portions 113 are provided on the upper surface of the cable support 110, and four wire saddles 111 are provided on the circumference of each cable mounting portion 113 at intervals of 90 degrees. As shown in FIG. 9, the wire saddle 111 is formed by bending an elongated plate, bending the upper end of both ends of the bottom portion to be connected upward by bending the upper end of the rule portion obliquely downward and inward, and between the obliquely bent portions on both sides. An optical cable 120 is passed between both sides, and the bottom is fixed to the upper surface of the cable support 110 with screws or the like. The optical cable 120 having one end connected to the communication device passes through four wire saddles 111 so as to form a loop 121 in any one of the cable mounting portions 113, and the other end is led out.
[0004]
FIG. 10 is a perspective view of a conventional cable extra length processing structure disclosed in Japanese Patent Application Laid-Open No. 8-54550, which can increase the number of optical cable storages.
[0005]
In FIG. 10, a cable support 202 is horizontally mounted on an upper rear surface of an electronic circuit unit 201, and two wire saddles 211 positioned vertically are mounted on a holding bracket 203 vertically suspended from a rear end of the cable support 202. is there. The optical cable 220 passes through the two wire saddles 211 of the holding fixture 203 to form a loop 221 to process the excess length. By forming a loop 221 of the optical cable 220 in the vertical direction by using the holding metal fitting 203 suspended in addition to the upper surface of the cable support 202, extra length processing can be performed, and the number of optical cables 220 accommodated can be increased.
[0006]
[Problems to be solved by the invention]
In the conventional cable extra length processing structure shown in FIG. 8, the optical cable 120 can be supported only on the upper surface of the cable support 110, and the number of cables accommodated is limited by the size of the wire saddle 111 attached to the cable support 110. .
[0007]
Further, in the conventional cable extra length processing structure shown in FIG. 10, the holding bracket 203 and the optical cable 220 hung from the cable support 202 cover and cover the back surface of the electronic circuit unit 201, and the optical cable of the electronic circuit unit 201 is closed. There is a problem that connection work and maintainability are significantly impaired. Further, when the loop 221 of the optical cable 220 is formed in the vertical direction, the optical cable 220 gradually bends down by its own weight at the portion of the wire saddle 211 holding the loop 221, and the optical cable 220 bends. There is a problem that it cannot be maintained.
[0008]
An object of the present invention is to provide a cable extra-length processing structure capable of coping with an increase in the number of optical cables and the like, while avoiding the above-described problems of blocking the back surface of the electronic circuit unit or the like and maintaining the radius of curvature.
[0009]
[Means for Solving the Problems]
The cable surplus length processing structure of the present invention includes a lower cable provided with a lower cable mounting portion (17 in FIG. 1) for mounting the cable (20 in FIG. 3) in a horizontal loop (21 in FIG. 3). An upper cable support provided with a support (10 in FIG. 1) and an upper cable mounting portion (34 in FIG. 2) which is detachably mounted on the lower cable support and mounts the cable in a horizontal loop. (13 in FIG. 2).
[0010]
The cable surplus length processing structure of the present invention includes a lower cable provided with a lower cable mounting portion (17 in FIG. 1) for mounting the cable (20 in FIG. 3) in a horizontal loop (21 in FIG. 3). An upper cable provided with a support (10 in FIG. 1) and an upper cable mounting portion (34 in FIG. 2) for mounting a cable detachably mounted on the lower cable support in a horizontal loop. A support (13 in FIG. 2), a plurality of legs (15 in FIG. 2) provided at least one each on both sides of the upper cable mounting portion below the upper cable support and parallel to each other; A rectangular mounting hole (12 in FIG. 1) provided at a position corresponding to the leg of the support and having a length in the width direction of the leg smaller than the width of the leg; Part (31 in FIG. 4) Locking portion having a bent portion (30 in FIG. 4) which is bent in the thickness direction of the leg portion and extends in the same direction as the leg portion by the thickness of the lower cable support. 32) and
The width of the system stop is smaller than the length of the mounting hole in the width direction of the leg, and the length of the bent portion in the thickness direction of the leg is larger than the length of the mounting hole in the thickness direction of the leg. Small, the stepped portion is abutted on the upper surface of the lower cable support, the locking portion is passed through the mounting hole, and the tip is opposed to the lower surface of the lower cable support, and the leg is fixed to the lower cable support. The bent directions of the distal ends of the legs provided on one side of the upper cable mounting portion of the upper cable support and the legs provided on the other side of the upper cable support are opposite to each other. It is characterized by.
[0011]
The cable surplus length processing structure of the present invention includes a lower cable provided with a lower cable mounting portion (17 in FIG. 1) for mounting the cable (20 in FIG. 3) in a horizontal loop (21 in FIG. 3). An upper cable support provided with a support (10 in FIG. 1) and an upper cable mounting portion (34 in FIG. 2) which is detachably mounted on the lower cable support and mounts the cable in a horizontal loop. (13 in FIG. 2), and the peripheral portion of the loop of the upper cable support, on which the extended portion of the placed cable runs, is curved upward (37 in FIG. 2), and the edge is inclined downward. It is characterized by having.
[0012]
The cable extra length processing structure of the present invention is provided with a plurality of lower cable mounting portions (17 in FIG. 1) for mounting the cables (20 in FIG. 3) in a horizontal loop (21 in FIG. 3). A lower cable support (10 in FIG. 1), and an upper cable receiver for mounting a cable, which is removably mounted on each of the cable receivers of the lower cable support, in a horizontal loop. (34 in FIG. 2) and a plurality of upper cable supports (13 in FIG. 2).
[0013]
The cable extra length processing structure of the present invention is provided with a plurality of lower cable mounting portions (17 in FIG. 1) for mounting the cables (20 in FIG. 3) in a horizontal loop (21 in FIG. 3). A lower cable support (10 in FIG. 1) and a detachably mounted upper part of the lower cable support, each of which is provided above one of the lower cable mounting parts for mounting a cable in a horizontal loop. And an upper cable support (41 in FIG. 6) having a plurality of upper cable mounting portions (38 in FIG. 6).
[0014]
The cable surplus length processing structure of the present invention includes a lower cable provided with a lower cable mounting portion (17 in FIG. 1) for mounting the cable (20 in FIG. 3) in a horizontal loop (21 in FIG. 3). An upper cable support provided with a support (10 in FIG. 1) and an upper cable mounting portion (34 in FIG. 2) which is detachably mounted on the lower cable support and mounts the cable in a horizontal loop. (13 in FIG. 2), a lower opening (18 in FIG. 1) for passing a cable provided in the center of the lower cable mounting portion of the lower cable support, and the cable mounting of the upper cable support And an upper opening (33 in FIG. 2) provided at the center of the portion.
[0015]
The cable surplus length processing structure of the present invention includes a plurality of lower cable placement portions (17 in FIG. 1) on which a cable (20 in FIG. 3) is placed in a horizontal loop (21 in FIG. 3) and placed along one side. A lower cable support (10 in FIG. 1) provided side by side, and a detachably mounted upper part of the lower cable support, each of which is provided above one of the lower cable mounting parts and mounts the cable in a horizontal loop. An upper cable support (41 in FIG. 6) having a plurality of upper cable mounting portions (38 in FIG. 6) for mounting, and the lower cable support is provided between the lower cable mounting portions on one side of the lower cable support. A lower notch (19 in FIG. 1) and an upper portion provided between the upper cable mounting portions on a side located above the one side of the lower cable support of the upper cable support. Characterized in that it comprises a notch and Ri.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Next, embodiments of the present invention will be described in detail with reference to the drawings.
[0017]
FIG. 1 is a perspective view showing a lower cable support 10 of an optical cable extra length processing structure according to an embodiment of the present invention.
[0018]
The lower cable support 10 is mounted horizontally on the back of the fan unit 2 provided on the upper part of the back of the communication device 1, and provided with four lower cable mounts 17. Each lower cable mounting portion 17 has a circular opening 18 at the center and a U-shaped notch 19 between each other. Also, four wire saddles 11 are provided at equal intervals around the opening 18 so that the loop 21 (see FIG. 3) of the optical cable 20 formed around the opening 18 is held by the four wire saddles 11. ing.
[0019]
FIG. 2 is a perspective view of the upper cable support 13 mounted on the lower cable mounting portion 17 of the lower cable support 10.
[0020]
The upper cable support 13 has a rectangular external shape when viewed from above, is formed of one sheet metal, and has two legs on each of two opposing sides (sides parallel to the rear surface of the communication device 1). The leg 15 is formed by bending a sheet metal 90 degrees and standing upright. The leg 15 needs to be higher than the wire saddle 11 so that the upper cable support 13 does not interfere with the wire saddle 11 when the upper cable support 13 is mounted on the lower cable support 10.
[0021]
As shown in FIG. 4, at the lower end of the leg portion 15, a step portion 31 having the same height is provided on both sides, and the width is slightly narrowed by the step portion 31 which is a part ahead of the step portion 31. The distal end of the stop portion 32 is a bent portion 30 bent outward by 90 degrees. The lower cable support 10 is provided with a mounting hole 12 corresponding to a lower side of the leg 15. The length C of the long side in the direction parallel to the rear surface of the communication device 1, that is, the direction parallel to the sheet metal forming the leg 15, is smaller than the width A of the leg 15, and Is larger than the width B. The length D of the short side in the thickness direction of the sheet metal forming the leg 15 of the mounting hole 12 is larger than the length E (including the thickness of the leg 15) of the bent portion 30. The length F between the step portion 31 and the upper surface of the bent portion 30 is equal to or slightly larger than the thickness of the lower cable support 10.
[0022]
The length G between the outer long sides of the mounting hole 12 provided on the communication device 1 side of the lower cable support 10 and the mounting hole 12 provided on the opposite side of the communication device 1 is removed from the lower cable support 10. In addition, the length H between the outer surfaces of the portions of the upper cable support 13 excluding the bent portions 30 of the leg portions 15 corresponding to these mounting holes 12 is smaller than H.
[0023]
To attach the upper cable support 13 to the lower cable support 10, for example, as shown in FIG. 5, insert the bent portion 30 at the tip of the leg 15 on the opposite side of the communication device 1 into the corresponding mounting hole 12, and Is brought into contact with the upper surface of the lower cable support 10. Next, the distal end of the leg 15 on the side of the communication device 1 is pushed toward the opposite side of the communication device 1 to bend until the bent portion 30 matches the position of the corresponding mounting hole 12. When the leg 15 is released after being inserted into the hole 12 and the step 31 is brought into contact with the upper surface of the lower cable support 10, the leg 15 on the side of the communication device 1 and the leg 15 on the opposite side are separated from each other. It is elastically deformed so as to widen the gap, so that the bent portion 30 is located below the lower cable support 10 outside the mounting hole 12, and the tip of the leg 15 does not come off from the mounting hole 12, and the upper cable support 13 Are fixed to the lower cable support 10.
[0024]
When removing the upper cable support 13 from the lower cable support 10, the tip of the leg 15 can be pulled out from the mounting hole 12 by pressing the leg 15 to bend the position of the bent portion 30 to fit the mounting hole 12. .
[0025]
The upper surface of the upper cable support 13 forms an upper cable mounting portion 34, has a circular opening 33 at the center, and four wire saddles 14 are provided around the opening 33 at equal intervals. The horizontal loop 21 (see FIG. 3) of the optical cable 20 formed around the center is held by four wire saddles 14.
[0026]
FIG. 3 is a diagram showing a state in which the upper cable support 13 is attached to the lower cable placing portion 17 on the right end of the lower cable support 10, and the wire saddles 11 and 14 hold the loop 21 of the optical cable 20.
[0027]
A method of processing the excess length of the optical cable 20 is as follows. First, in a state where the upper cable support 13 is not attached to the lower cable support 10, the optical cable 20 guided vertically in the side portion of the communication device 1 is connected to the lower cable support 10. (Only the right side is shown in FIG. 3), and the excess length is wound around the wire saddle 11 of the lower cable placing portion 17 in a horizontal loop 21 to be processed. Unit (not shown). Next, the upper cable support 13 is attached to the lower cable support 10, another optical cable 20 is also introduced from the right side of the upper cable support 13, and the extra length is placed horizontally on the wire saddle 14 of the upper cable mounting portion 34. After being wound around the loop 21 and processed, the leading end is connected to a connector of a unit in the communication device 1.
[0028]
The lower cable support 10 is held by a bracket 35 fixed to a side surface of the communication device 1 with both ends forming a curved surface 36 and then facing downward. The curved surface 36 prevents the optical cable 20 introduced from both sides from being bent to an allowable radius or less. Also, curved surfaces 37 are formed on both sides of the upper cable support 13 to prevent the optical cable 20 guided along the upper cable support 13 from being bent to an allowable radius or less.
[0029]
FIG. 3 shows a case in which the upper cable support 13 is attached to the lower cable support portion 17 on the right end of the lower cable support 10. The upper cable support 13 has four lower cable support portions 17 of the lower cable support 10. Any one of them can be attached arbitrarily, and a plurality of upper cable supports 13 can be attached to an arbitrary lower cable placing portion 17, so that the workability and storage of the optical cable 20 can be improved.
[0030]
FIG. 6 is a perspective view of an upper cable support 41 used in a cable extra length processing structure according to another embodiment of the present invention. The upper cable support 41 is also mounted on the lower cable support 10 shown in FIG. 1, and two upper cable receivers 38 corresponding to the two lower cable receivers 17 of the lower cable support 10 are provided. The upper cable placement section 38 includes a central opening 33 and a wire saddle 14 disposed around the opening 33. Further, two leg portions 15 are provided only on both side end portions of the upper cable support 41.
[0031]
FIG. 7 is a perspective view of an upper cable support 42 used in a cable extra length processing structure according to still another embodiment of the present invention. The upper cable support 42 is also mounted on the lower cable support 10 shown in FIG. 1, and three upper cable mounting sections 39 corresponding to the three lower cable mounting sections 17 of the lower cable support 10 are provided. The upper cable mounting section 39 includes a central opening 33 and a wire saddle 14 disposed around the opening 33. Further, two leg portions 15 are provided only on both side end portions of the upper cable support 42. However, the arrangement of the legs 15 is not limited to that shown in FIG. 7. Four legs 15 are provided in each upper cable mounting portion 39 corresponding to the mounting holes 12 provided in the lower cable support 10. Or some of the legs 15 may be removed.
[0032]
Although not shown in the figure, the extension of the optical cable 20 having the loop 21 formed on the wire saddle 11 of the lower cable support 10 is guided to the lower side of the lower cable support 10 through the opening 18 or the notch 19, The distal end may be connected to a terminal of a unit provided on the back side of the communication device 1. The extended portion of the optical cable 20 forming the holding loop 21 in the wire saddle 14 of the upper cable support 13 can also be guided to the lower side of the lower cable support 10 through the openings 33 and 18. Further, a notch is provided between the upper cable mounting portions 38 of the upper cable supports 41 and 42 or between the upper cable mounting portions 39 to form the optical cable 20 forming the loop 21 held by the wire saddle 14. It can also be guided downward through the notch.
[0033]
As shown in FIGS. 6 and 7, the upper cable mounting portion 38 for mounting the loop 21 for processing the excess length of the optical cable 20 has two cable supports 41, the upper cable mounting portion 39 has three cable supports 42, and the like. The cable support having an appropriate size can be properly used depending on the number of optical cables 20 to be introduced and the mounting position.
[0034]
As the material of the lower cable support 10 and the upper cable supports 13, 41, 42, for example, a steel plate can be used, or a plastic resin can be used. The same applies to the wire saddles 11 and 14.
[0035]
The present invention is not limited to optical cables, but can be applied to various cables.
[0036]
【The invention's effect】
The cable extra-length processing structure of the present invention has a lower and upper two-stage structure of a lower cable support and an upper cable support for accommodating the extra length of the cable, thereby increasing the number of cables to be accommodated. That is, by mounting the upper cable support on the lower cable support, it is possible to easily increase or reduce the surplus processing area of the cable according to the number of introduced cables. In addition, the upper cable support can be attached to and detached from the lower cable support without using screws or tools, and the extra length processing area of the cable can be easily added or reduced.
[0037]
Normally, connectors for connecting cables of various units are arranged on the back of the communication device etc., and the back of the communication device etc. is easily accessible and easy to see for the work of connecting the cable to the connector However, the lower cable support and the upper cable support of the present invention stack the cable reels horizontally and compactly, and cover only a small part of the back surface of the communication device, which hinders the cable connection work. Nothing.
[0038]
In the example shown in FIGS. 1 and 3, a lower cable support is attached to a fan unit 2 provided on the upper part of the rear surface of the communication device 1, and the rear surface of the communication device 1 other than the fan unit 2 is provided with a cable surplus processing structure. As shown in FIG. 10, the vertically arranged cable loop does not cover much of the rear surface of the communication device, so that the cable connection work area is not affected. Absent.
[0039]
As described above, the cable extra-length processing structure of the present invention is a compact structure that does not require a large amount of space, and enables efficient use of space in a narrow housing of a communication device.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a lower cable support 10 of an optical cable extra length processing structure according to an embodiment of the present invention.
FIG. 2 is a perspective view showing an upper cable support 13 of the optical cable extra length processing structure according to the embodiment of the present invention.
FIG. 3 is a partial perspective view of the optical cable extra length processing structure according to the embodiment of the present invention.
4 is a perspective view showing a state before a lower end of a leg 15 in FIG. 2 is inserted into a corresponding mounting hole 12 in FIG. 1;
5 is a perspective view showing a state in which the lower ends of the legs 15 in FIG. 2 are inserted into corresponding mounting holes 12 in FIG. 1;
FIG. 6 is a perspective view showing an upper cable support 41 of an optical cable extra length processing structure according to another embodiment of the present invention.
FIG. 7 is a perspective view showing an upper cable support 42 of an optical cable extra length processing structure according to still another embodiment of the present invention.
FIG. 8 is a perspective view of a conventional optical cable extra length processing structure.
FIG. 9 is a perspective view of the wire saddle 111 in FIG.
FIG. 10 is a perspective view of another conventional optical cable extra length processing structure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Communication apparatus 2 Fan unit 10 Lower cable support 11 Wire saddle 12 Mounting hole 13 Upper cable support 14 Wire saddle 15 Leg 17 Lower cable placement part 18 Opening part 19 Notch 20 Optical cable 21 Loop 30 Bending part 31 Step part 32 Stop portion 33 Opening portion 34 Upper cable mounting portion 35 Bracket 36 Curved surface 37 Curved surface 38 Upper cable mounting portion 39 Upper cable mounting portion 41 Upper cable support 42 Upper cable support 110 Cable support 111 Wire saddle 112 Support arm 113 Cable Placement part 120 Optical cable 121 Loop 201 Electronic circuit unit 202 Cable support 203 Holding bracket 211 Wire saddle 220 Optical cable 221 Loop

Claims (7)

A lower cable support with a lower cable mounting part for placing cables in a horizontal loop, and an upper cable detachably mounted on top of this lower cable support to place cables in a horizontal loop A cable extra-length processing structure including an upper cable support provided with a cable mounting portion. A lower cable support provided with a lower cable mounting part for mounting the cable in a horizontal loop, and a cable for detachably mounting the cable mounted on the upper part of the lower cable support in a horizontal loop. An upper cable support provided with an upper cable mounting portion, a plurality of legs provided at least one each on both sides of the upper cable mounting portion below the upper cable support portion and being parallel to each other; A rectangular mounting hole provided at a position corresponding to the leg portion, wherein the length of the leg portion in the width direction is smaller than the width of the leg portion; A locking portion having a bent portion that is bent in the thickness direction of the leg portion at an end extending in the same direction as the leg portion by the thickness of the cable support,
The width of the system stop is smaller than the length of the mounting hole in the width direction of the leg, and the length of the bent portion in the thickness direction of the leg is larger than the length of the mounting hole in the thickness direction of the leg. Small, the stepped portion is abutted on the upper surface of the lower cable support, the locking portion is passed through the mounting hole, and the tip is opposed to the lower surface of the lower cable support, and the leg is fixed to the lower cable support. The bent directions of the distal ends of the legs provided on one side of the upper cable mounting portion of the upper cable support and the legs provided on the other side of the upper cable support are opposite to each other. Cable extra length processing structure characterized by the following. A lower cable support with a lower cable mounting part for placing cables in a horizontal loop, and an upper cable detachably mounted on top of this lower cable support to place cables in a horizontal loop An upper cable support provided with a cable mounting portion, wherein a peripheral portion of the loop of the upper cable support on which an extended portion of the mounted cable runs is a convex curved surface, and the edge is inclined downward. Cable extra length processing structure characterized by the following. A lower cable support having a plurality of lower cable mounting portions for mounting the cables in a horizontal loop, and a cable which is removably mounted on each of the cable mounting portions of the lower cable support. And a plurality of upper cable supports provided with upper cable placement portions for placing the cable in a horizontal loop. A lower cable support provided with a plurality of lower cable mounting portions for mounting the cables in a horizontal loop, and any of the lower cable mounting portions which are detachably mounted on the upper portion of the lower cable support; And an upper cable support having a plurality of upper cable mounting portions for mounting the cables in a horizontal loop. A lower cable support with a lower cable mounting part for placing cables in a horizontal loop, and an upper cable detachably mounted on top of this lower cable support to place cables in a horizontal loop An upper cable support provided with a cable mounting portion, a lower opening portion for passing a cable provided at the center of the lower cable mounting portion of the lower cable support, and a lower mounting portion of the cable mounting portion of the upper cable support. A cable extra-length processing structure including an upper opening provided in the center. A lower cable support in which a plurality of lower cable mounting portions for mounting cables in a horizontal loop are arranged along one side, and the lower cable mounting portion is removably mounted on the upper portion of the lower cable support, and each of the lower cable mounting portions is An upper cable support having a plurality of upper cable mounting portions for mounting a cable in a horizontal loop provided on an upper portion of the lower cable support, and between the lower cable mounting portions on one side of the lower cable support. A lower notch provided on the upper cable support, and an upper notch provided between the upper cable mounting portions on a side located above the one side of the lower cable support of the upper cable support. Cable extra length processing structure.

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