JP2010168074A - Extra length storing member, cable storing box, and method for storing extra length using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To effectively use the extra length of a cable for the effective utilization of resource and the reduction of a network building cost by preventing the entangle ment of a cable and by holding the extra length of the cable easily. <P>SOLUTION: An extra length storing member 100 used for a cable storing box 200 for storing a cable 11 wound in the shape of the number eight, is shaped into a hollow pipe 25 formed into a predetermined length and both ends of which are opened. The cable storing box 200 includes the extra length storing member 100. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a surplus length storage member that stores a surplus length generated when an 8-shaped cable is pulled out from a box, a cable storage box, and a surplus length storage method using the surplus length storage member.

  A cable storage box for storing a cable wound with a figure 8 is mainly used to store a relatively small diameter cable such as a LAN cable or an indoor optical cable installed indoors. This cable storage box is stored in the state of a so-called 8-shaped cable that is easy to pull out without tangling the cable, and the cable is drawn out from a hole formed on one surface and installed. ing. The cable storage box is formed mainly of corrugated cardboard so that it can be easily discarded after use, that is, after the cable is used up (see, for example, Patent Documents 1 and 2).

Japanese Patent No. 3986067 JP 2001-63784 A

  In the cable storage box described above, after the cable has been laid in the room, an extra length (for example, about 5 to 10 m) in which the cable is excessively pulled out from the box may remain. In the cable storage box, if this extra length is pushed into the box, the cable will get tangled in the box, and even if you try to pull it out next time, it will not be pulled out smoothly, or the cable will be kinked (bent) If the cable is an optical cable, it may cause trouble such as disconnection. For this reason, after laying work, the cable is cut near the box, and the excess length is discarded. However, if the extra length is discarded in this way, resources are wasted and the network construction cost increases.

  Therefore, the present invention is capable of effectively utilizing the surplus length by simply maintaining the surplus length while preventing cable entanglement, and can effectively utilize resources and reduce network construction costs. It is an object of the present invention to provide a surplus length storage member for storing a wound cable, a cable storage box, and a surplus length storage method using the same.

The above object of the present invention is achieved by the following configuration.
(1) An extra length storage member used for a cable storage box for storing a cable wound with an 8-character,
A surplus length storage member formed of a hollow tube having a predetermined length and open at both ends.

  According to this extra length storage member, it is only necessary to push the tip of the extra length of the cable into the entrance of the hollow tube, and even if the cable is longer than the hollow tube, the hollow tube can be easily inserted and wound several times. Can be held, that is, stored. That is, the hollow tube serves as a holder. When pulling out the surplus length, the cable on the side close to the box is pulled and the surplus length is simply pulled out from the hollow tube, so that the cable can be pulled out without causing twisting, and the laying workability is improved.

(2) The extra length storage member of (1),
The extra length storage member, wherein the hollow tube is bent so that both ends thereof are close to each other.

  According to this extra length storage member, the hollow tube becomes C-shaped when both ends are close to each other, and the cable inserted from the entrance of one end is bent along the inside of the hollow tube and led out from the exit of the other end. It becomes possible. When the cable surplus length is longer than the total length of the hollow tube, the tip of the cable led out from the outlet is inserted again into the entrance of the hollow tube, and a long cable can be stored by a plurality of turns. Further, since the hollow tube is C-shaped, it is possible to regulate the minimum bending inner diameter of the inserted cable extra length so as not to become a certain value or less.

(3) The extra length storage member according to (1) or (2),
A surplus length storage member, wherein the hollow tube is attached to a flat surface of a plate-like member.

  According to this surplus length storage member, the hollow tube is attached to the plate-shaped member separate from the cable storage box, and the cable can be stored at a position where the work is easy to work different from the position of the cable storage box. Further, the hollow tube is separated from the used cable storage box together with the plate member, and the extra length storage member made up of the separated hollow tube and plate member can be reused.

(4) A cable storage box for storing an 8-shaped cable,
A cable storage box comprising the surplus length storage member according to any one of claims 1 to 3.

  According to the cable storage box, the cable storage box and the extra length storage member are integrated, and the extra length storage member can be easily carried into and out of the laying work site. That is, related members become one set, and convenience is improved.

(5) The cable storage box according to (4),
The cable storage box, wherein the extra length storage member is provided on an outer surface excluding a surface where the cable outlet is opened.

  According to this cable storage box, the cable extra length drawn from the cable outlet can be inserted into the extra length storage member provided on the outer surface adjacent to the formation surface of the cable outlet, and there is an appropriate insertion work space. It is easy to insert and, when pulling out the extra length, pull the extra cable part exposed from the cable outlet to the outer surface, and pull out the extra cable length easily from the extra length storage member. be able to.

(6) The cable storage box according to (4) or (5),
A cable storage box, wherein the extra length storage member is slidably mounted and can be stored inside the box.

  According to this cable storage box, the excess length storage member is stored in the cable storage box, so that the excess length is also protected by the cable storage box. it can. Also, during the extra length storage work, it is easier to work if the extra length storage member's mouth is outside the cable storage box, but if the extra length remains protruding from the cable storage box, it will interfere with other members. This may cause injury. In this configuration, the extra length storage member is slidably stored in the cable storage box, and when the extra length is stored, the opening of the hollow tube is taken out, and after the operation is completed, the entire extra length is stored in the cable storage box. It is possible to achieve both improvement in workability and prevention of trauma by storing in a container.

(7) The cable storage box according to any one of (4) to (6),
A cable storage box, wherein the extra length storage member is formed and equipped with a shape equal to or smaller than an outer surface dimension of the box.

  According to this cable storage box, the extra length storage member and the cable storage box are placed side by side so that the maximum length of the extra length storage member does not exceed the height and depth of the cable storage box. This makes it easy to reduce the storage space when arranging a plurality of cable storage boxes.

(8) The extra length cable drawn out from the cable storage box for accommodating the figure-wrapped cable is inserted into any one extra length storage member of (1) to (3). Extra length storage method.

  According to this extra length storage method, the extra length of the cable extra drawn out from the cable storage box is inserted into the entrance of the hollow tube and pushed in sequentially, so that the extra length of the cable is inserted into the hollow tube. Even if the extra length is longer than that of the hollow tube, the cable from the outlet can be circulated along the hollow tube by inserting it again from the inlet of the hollow tube. The cable can be easily stored without causing twisting.

  According to the surplus length storage member according to the present invention, since it is a hollow tube having a predetermined length and open at both ends, it can be stored simply by pushing the tip of the cable surplus length into the hollow tube, and when the surplus length is pulled out The cable can be pulled out without causing twisting by simply pulling it out from the hollow tube. As a result, by simply holding the surplus length while preventing cable entanglement, it is possible to effectively utilize the surplus length and reduce the effective utilization of resources and network construction costs.

  According to the cable storage box of the present invention, since the surplus length storage member according to any one of claims 1 to 3 is provided, the cable storage box and the surplus length storage member are integrated into a laying operation. Carrying in and out of the site is easy. As a result, workability can be improved and the work time can be shortened.

  According to the surplus length storage method according to the present invention, the surplus length cable drawn from the cable storage box is inserted into the surplus length storage member according to any one of claims 1 to 3, so that the cable surplus length By inserting the tip of the cable into the entrance of the hollow tube and sequentially pushing it in, the cable of any length can be easily accommodated without causing twisting.

It is a perspective view of the storage box for cables provided with the surplus length storage member which concerns on 1st embodiment of this invention. (A) is a front view of the outer surface of the cable storage box shown in FIG. 1, and (b) is a cross-sectional view of the cable shown in FIG. It is a disassembled perspective view of the cable storage box which concerns on 2nd embodiment with which the plate-shaped member which attached the hollow tube was mounted | worn by the outer surface. It is a perspective view of the storage box for cables which concerns on 3rd embodiment in which a hollow tube is slidably accommodated in a box. (A) is a side view of the state where the hollow tube is pulled out, (b) is a side view of the state where the hollow tube is housed in a box.

DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of a surplus length storage member, a cable storage box, and a surplus length storage method using the same according to the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a cable storage box provided with a surplus length storage member according to the first embodiment of the present invention.
The surplus length storage member 100 according to the present embodiment is used by being attached to the box body 13 of the cable storage box 200 for storing the cable 11 wound with the figure eight. The attachment form can be a fixed, detachable attachment, or a slidable storage structure. In the present embodiment, an example will be described in which the fixing means is fixed to the outer surface 17 of the box body 13 with, for example, a binding band (insulok) 15.

  The box body 13 is formed, for example, in a hexahedron shape by a corrugated cardboard 19, and a circular cable outlet 23 is opened on a front surface 21 that is one surface. In the box body 13, for example, an optical cable, which is the cable 11, is housed in a figure 8 shape. The figure-eight winding method is a winding method in which the winding direction is reversed at the center intersection, and does not twist even when the cable 11 is pulled out of the bundle. Compared to the conventional donut-shaped winding method, it is troublesome to untwist on site. Problems such as deterioration of characteristics and disconnection due to twisting and kinking hardly occur.

  The surplus length storage member 100 includes a hollow tube 25 that is formed in a predetermined length and is open at both ends as a main member. The hollow tube 25 may be used by bending a flexible tube such as a synthetic resin flexible electric wire tube (CD tube; Combined Duct) or a polyethylene tube, or a plastic tube molded and fixed in a C shape. But you can. If a bellows like a so-called corrugated tube is used, it is possible to obtain impact resistance, flexibility, shape restoration, and smooth lineability.

  The hollow tube 25 is bent so that the inlet 27 and the outlet 29 at both ends are close to each other. When both ends are close to each other, the hollow tube 25 becomes C-shaped, and the cable 11 inserted from the inlet 27 at one end is curved along the hollow tube 25 and can be led out from the outlet 29 at the other end. Become. Therefore, when the cable surplus length drawn out from the box body 13 and remaining after the laying operation is longer than the total length of the hollow tube 25, the tip of the cable 11 led out from the outlet 29 is inserted into the inlet 27 again. As a result, the cable 11 longer than the entire length of the hollow tube 25 can be accommodated by a plurality of turns. Further, since the hollow tube 25 is C-shaped, it is possible to restrict the minimum bending inner diameter of the inserted cable extra length so as not to become a certain value or less.

  The shape of the hollow tube 25 may be U-shaped or straight in addition to the C-shape as in the present embodiment. In the case of the straight type, a single straight type hollow tube 25 may be provided, or a plurality of straight type hollow tubes 25 may be arranged apart from each other in the circulation path. When a single straight hollow tube 25 is provided, the cable 11 inserted from the entrance 27 is pulled out from the exit 29, bent so as to draw an arc, and inserted again into the entrance 27, and this is repeated. Thus, a part of the circumferential direction of the annular cable bundle wound around is held by the hollow tube 25.

2A is a front view of the outer surface of the cable storage box shown in FIG. 1, and FIG. 2B is a cross-sectional view of the cable shown in FIG.
The hollow tube 25 bent into a C shape preferably has a minimum bending inner diameter D that is 20 times or more the maximum outer diameter d of the cable 11. As a result, even if the cable 11 is an optical cable, excessive bending distortion is not generated in the optical fiber core wire, so that transmission loss is suppressed and reliability is not lowered.

  Moreover, it is preferable that the hollow tube 25 has an inner diameter A that is five times or more the maximum outer diameter d of the cable 11 shown in FIG. The cable 11 may be either a circular section 11A or a rectangular section 11B having a short side s and a long side t. In the case of a rectangular section 11B, the cable 11 has a diagonal distance. Is the maximum outer diameter d. Since the inner diameter A of the hollow tube 25 is sufficiently larger than the maximum outer diameter d of the cable 11, the operation of storing a plurality of turns of the cable 11 is facilitated, and an extra length more than the length of the hollow tube 25 is easily stored. Will be able to. That is, as shown in FIG. 1, the circular cable bundle wound around can be held with a margin.

  As described above, in the surplus length storage member 100, it is only necessary to push the tip of the surplus length cable into the entrance 27 of the hollow tube 25, and even the cable 11 longer than the hollow tube 25 is inserted and wound a plurality of times. It can be easily held, that is, stored. That is, the hollow tube 25 becomes a holder. In addition to this, when pulling out the extra length cable, the cable 11 on the side close to the box body 13 (the transition cable portion 11a described later) is pulled, and the extra length cable is simply pulled out from the hollow tube 25. It can be pulled out without causing twisting, and the laying workability is improved.

Next, the cable storage box 200 including the extra length storage member 100 will be described.
As shown in FIG. 1, the cable storage box 200 can be provided integrally with the extra length storage member 100 described above. In the present embodiment, the extra length storage member 100 bent into a C-shape is provided at a plurality of locations (three locations in the illustrated example) on the outer surface 17 excluding the front surface 21 where the cable outlet 23 is opened by the insulation lock 15. It is fixed.

  The cable storage box 200 can be easily carried into and out of the extra length storage member 100 to the laying work site by integrating the extra length storage member 100. That is, related members become one set, and convenience is improved. In addition, the extra length cable drawn from the cable outlet 23 can be inserted into the extra length storage member 100 provided on the outer surface 17 adjacent to the formation surface (front surface 21) of the cable outlet 23, and an appropriate insertion work space. (Space from the cable outlet 23 to the outer surface 17) can be secured, and insertion becomes easy. Further, when pulling out the surplus length, the surplus length cable can be easily pulled out from the hollow tube 25 by pulling the connecting cable portion 11 a exposed from the cable outlet 23 to the outer surface 17.

  Here, it is preferable that the extra length storage member 100 is formed and equipped with a size equal to or smaller than the outer surface (outer surface 17 in this example) of the box body 13. That is, as shown in FIG. 2, the maximum height h or depth b of the extra length storage member 100 is a size that does not exceed the height H and depth B of the cable storage box 200. It becomes easy to place the cable storage boxes 200 side by side. As a result, for example, the storage space when the plurality of cable storage boxes 200 are organized can be reduced. In addition, it is possible to prevent an injury caused by an exposed portion of the annular cable bundle that is inserted through the surplus length storage member 100 and wound around the surplus length storage member 100 from the outer surface of the box body 13.

  In the surplus length storage method using the cable storage box 200 provided with the surplus length storage member 100, the surplus length cable drawn out from the box main body 13 storing the cable 11 wound with the figure 8 is used as the surplus length storage member. 100 is inserted. The tip of the extra length cable drawn out from the box body 13 is inserted into the inlet 27 of the hollow tube 25 and pushed in sequentially, so that the extra length cable is accommodated along the hollow tube 25. Even when the extra length is longer than that of the hollow tube 25, the cable 11 coming out from the outlet 29 can be recirculated along the hollow tube 25 by inserting it again from the inlet 27 of the hollow tube 25, The cable 11 having an arbitrary length can be easily accommodated without causing twisting. If the entrance 27 and the exit 29 are brought close to each other at an appropriate distance, the cable 11 led out from the exit 29 can be sent to the entrance 27 as it is. As a result, it is possible to eliminate the disturbance in the figure 8 winding of the cable 11 in the box body 13 and to smoothly draw out the cable extra length without causing entanglement, elongation, disconnection or the like.

Next, a second embodiment of the cable storage box according to the present invention will be described.
FIG. 3 is an exploded perspective view of the cable storage box according to the second embodiment in which a plate-like member attached with a hollow tube is mounted on the outer surface.
In the cable storage box 200 </ b> A according to this embodiment, the hollow tube 25 is attached to the flat surface 31 a of the plate-like member 31. The plate-like member 31 is formed of a corrugated cardboard having substantially the same size as the outer surface 17. The hollow tube 25 is fixed to the plate-like member 31 with an insulation lock 15. That is, the hollow tube 25 and the plate-shaped member 31 constitute the surplus length storage member 100A. The surplus length storage member 100 </ b> A is attached to the outer side surface 17 of the box body 13.

  In the surplus length storage member 100A, for example, the plate-like member 31 is fixed to the box body 13 with a gummed tape (not shown). As for the fixing method, in addition to the gummed tape, a hook-and-loop fastener may be attached to the joint surface of the box body 13 and the plate-like member 31, or a cut is made in the box body 13, and a part of the plate-like member 31 is used. You may make it hold | maintain and hold | maintain a nail | claw. Alternatively, it may be pasted with an adhesive, but it is disadvantageous when the surplus length storage member 100A is reused.

  According to the cable storage box 200A according to this embodiment, the hollow tube 25 is attached to the plate-like member 31 that is separate from the box body 13, and the cable 11 is located at a position where it is easy to work differently from the cable storage box 200A. Storage is possible. Further, the hollow tube 25 is separated from the used box body 13 together with the plate-like member 31, and the extra length storage member 100A composed of the separated hollow tube 25 and plate-like member 31 can be reused. . Further, the box body 13 and the extra length storage member 100A can be separated and stored.

FIG. 4 is a perspective view of a cable storage box according to a third embodiment in which the hollow tube is slidable and stored in the box.
In the cable storage box 200B according to this embodiment, the extra length storage member 100A is slidably mounted and can be stored in the box body 13. That is, the box body 13 is formed with a thin flat storage space 33 in the lateral direction inside the outer surface 17, and the storage space 33 is partitioned from the cable storage space by the partition wall 34. The accommodation space 33 is opened as a rectangular opening 35 on the front surface 21. The accommodation space 33 can accommodate the entire extra length accommodation member 100A.

  The surplus length storage member 100 </ b> A is configured such that the entire surplus length storage member 100 </ b> A can slide forward and backward from the opening 35 by making the depth of the plate-like member 31 smaller than the depth of the box body 13. Further, by making the height of a part of the plate-like member 31 on the near side of the slide larger than the height of the opening 35 of the box body 13, the entire extra length storage member 100 </ b> A is prevented from jumping out of the box body 13. .

  In the present embodiment, the height of the plate-like member 31 is formed to be higher than the height of the opening 35, and the leading edge of the plate-like member 31 is notched up and down, so that the lead-out portion 37 smaller than the height of the opening 35 is formed. Forming. As a result, the surplus length storage member 100A can be easily pulled out with the pull-out portion 37. Further, the inlet 27 and the outlet 29 of the hollow tube 25 together with the drawer portion 37 can be disposed outside the box body 13 so that the cable 11 can be easily inserted and pulled out.

FIG. 5A is a side view of the state in which the hollow tube is pulled out, and FIG. 5B is a side view of the state in which the hollow tube is housed in the box.
In the cable storage box 200B according to this embodiment, the extra length storage member 100A is accommodated in the box main body 13 so that the extra length is protected by the box main body 13. Can be prevented. As shown in FIG. 5 (a), during the extra length storage work, it is easier to work if the inlet 27 and the outlet 29 of the extra length storage member 100A are out of the box main body 13, but the extra length is the box main body. If it is left protruding from 13, it may interfere with other members and be damaged. In this configuration, as shown in FIG. 5 (b), the surplus length accommodating member 100A is slidably accommodated in the box main body 13, and the outlet 29 of the hollow tube 25 is exposed outside during surplus length accommodating work. After completion, the entire surplus length is accommodated in the box body 13 to improve both workability and prevent injury.

  Therefore, according to the above-described surplus length storage members 100 and 100A, since the hollow tube 25 is formed to have a predetermined length and both ends are open, it can be stored simply by pushing the tip of the cable surplus length into the hollow tube 25. When pulling out the surplus length, it can be pulled out without generating twist by simply pulling from the hollow tube 25. As a result, the surplus length can be easily held while preventing the cable 11 from being entangled, the surplus length can be effectively used, and the resource utilization and network construction costs can be reduced.

  Further, according to the cable storage boxes 100, 100A, 100B, the extra length storage member 100 is provided, so that the box body 13 and the extra length storage members 100, 100A are integrated, and can be carried into and out of the laying work site. It becomes easy. As a result, workability can be improved and work time can be shortened.

  Furthermore, according to the extra length storage method, the extra length cable drawn from the cable storage boxes 100, 100A, 100B is inserted into the extra length accommodation member 100, 100A. The cable 11 having an arbitrary length can be easily accommodated without causing twisting by being inserted into the 25 entrances 27 and sequentially pushed.

Next, a description will be given of the results of manufacturing the surplus length storage member and the cable storage box with the same configuration as the surplus length storage member 100 and the cable storage box 200 shown in FIG.
A hollow tube was bent into a C shape on the outer surface of the box body and fixed with an insulation lock. The hollow tube was a CD tube having an inner diameter of 15 mm and an outer diameter of 20 mm, and the bending inner diameter was 230 mm. The outer diameter of the entire extra length storage member was 270 mm.
In the cable storage box according to this embodiment, an indoor optical cable having a long side of 2 mm and a short side of 1.6 mm and having a substantially rectangular cross section is inserted into the entrance of the hollow tube, and the cable drawn from the exit is inserted into the entrance again. It was confirmed that the extra length of 10 m could be easily accommodated by rotating around.

11 Cable 13 Box body (box body)
17 Outer surface excluding the open surface of the cable outlet 21 Front (front surface of the cable outlet)
23 Cable outlet 25 Hollow tube 31 Plate member 31a Plane 100, 100A Extra length storage member 200, 200A, 200B Cable storage box

Claims (8)

It is a surplus length storage member used for a cable storage box for storing an 8-shaped cable,
A surplus length storage member formed of a hollow tube having a predetermined length and open at both ends. The extra length storage member according to claim 1,
The extra length storage member, wherein the hollow tube is bent so that both ends thereof are close to each other. The extra length storage member according to claim 1 or 2,
A surplus length storage member, wherein the hollow tube is attached to a flat surface of a plate-like member. A cable storage box for storing an 8-shaped cable,
A cable storage box comprising the surplus length storage member according to any one of claims 1 to 3. The cable storage box according to claim 4,
The cable storage box, wherein the extra length storage member is provided on an outer surface excluding a surface where the cable outlet is opened. The cable storage box according to claim 4 or 5,
A cable storage box, wherein the extra length storage member is slidably mounted and can be stored inside the box. The cable storage box according to any one of claims 4 to 6,
A cable storage box, wherein the extra length storage member is formed and equipped with a shape equal to or smaller than an outer surface dimension of the box.   The surplus length cable drawn out from the cable storage box for accommodating the figure-wrapped cable is inserted into the surplus length storage member according to any one of claims 1 to 3. Long storage method.

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