Cable storage and shipping method

Abstract

It is possible to respond quickly and at low cost to cable supply requests from different laying sites, and to provide a method for storing and shipping cables that can minimize the impact of road surface gradients and unevenness. 【Solution means】The method for storing and shipping cables includes a storage process for storing a plurality of cables and a shipping process for shipping the stored cables. The storage process includes a first step of inserting a turntable into the insertion port of the cable container body and placing the cable container on the turntable, a second step of winding the cable onto the cable container, a third step of removing the turntable, and a fourth step of storing the cable container. The shipping process includes a fifth step of selecting a specific cable container, inserting the turntable into the insertion port of the specific cable container, and placing the specific cable container on the turntable, and a sixth step of feeding out the specific cable from the specific cable container.

Description

Technical Field

[0001] The present disclosure relates to a method for storing and shipping cables, which stores cables in a predetermined location and ships the cables in response to a shipping request.

Background Art

[0002] Conventionally, when transporting a large cable such as a submarine cable to the laying site after manufacturing the cable, the cable is wound around a turntable mounted on a cable laying barge from a cable factory, and the cable is loaded on the ship and transported towards the site. For example, Patent Document 1 discloses a submarine cable laying barge equipped with a turntable.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the cable laying barge of Patent Document 1, the cable is wound and stored in a cable storage device equipped with a turntable from the factory, and when the ship arrives at the site, the turntable is rotationally driven to pay out the cable stored in the cable storage device, and the cable is put into the water.

[0005] In order to load cables onto such a cable-laying barge and transport the cables to the site, it is necessary to wind and store the cables stored on land onto the cable storage device on the ship. At this time, when temporarily storing the cables on land, it is conceivable to wind and stack the cables in multiple layers in a cable container equipped with a turntable for storage. As a result, when shipping becomes necessary, the cables can be fed out from the cable container on land towards the ship by rotationally driving the turntable on land.

[0006] By the way, when there is a need to replace a cable that has already been laid on the seabed, it is required to quickly supply a new cable to the site. To meet this requirement, the cable factory needs to pre-manufacture replacement cables before the need for replacement arises.

[0007] However, when pre-manufacturing a plurality of different cables for cable replacement at each different laying site, these cables are either directly loaded onto the turntable sequentially, or wound around and stacked in a cable container on the turntable for storage. Then, even if a shipping request occurs for the lower-layer cable before the upper-layer cable on the turntable or in the cable container, the lower-layer cable cannot be taken out unless the upper-layer cable is shipped first. Also, if a large number of turntables corresponding to each laying site are prepared, the cost for storing the cables increases due to the increase in the number of turntables. In addition to the case of cable replacement, similar problems can occur due to fluctuations in the progress of the work when newly laying cables. Also, when loading the cables loaded on the cable-laying barge onto the cable container, it is conceivable to place the cable container or turntable on a trolley and move it close to the cable-laying barge. However, in order to place the cable container or turntable on a trolley and move it, it is required that the road surface of the moving route has no gradient or unevenness.

[0008] Therefore, one aspect of the present disclosure aims to provide a method for storing and shipping cables that can quickly and inexpensively respond to cable supply requirements from different laying sites and can minimize the influence of road surface gradients and unevenness.

Means for Solving the Problems

[0009] The cable storage and shipping method according to one aspect of the present disclosure includes a cable container body having an insertion port disposed at the center in a plan view and a cable storage portion disposed outside the insertion port in the horizontal direction, and a receiving member disposed at the insertion port and detachably coupled to the cable container body. A storage step of storing a plurality of cables in each of a plurality of cable containers, and a shipping step of shipping the stored cables. The storage step includes, in the Nth cable container (N is a natural number), inserting the turntable into the insertion port of the cable container body with the receiving member removed from the cable container body, coupling the receiving member to the cable container body, and placing the receiving member on the turntable to place the Nth cable container on the turntable. A first step, a second step of rotationally driving the turntable to wind the Nth cable around the Nth cable container, a third step of removing the receiving member from the cable container body with respect to the Nth cable container around which the Nth cable has been wound, and relatively displacing the turntable to remove the turntable from the Nth cable container, and a fourth step of storing the Nth cable container from which the turntable has been removed together with the Nth cable. N = 1 to M (M is a natural number of 2 or more), and the set from the first step to the fourth step is repeated from the first time to the Mth time. The shipping step includes selecting a specific cable container around which a specific cable for which a shipping request has occurred among M cables from the first cable to the Mth cable stored has been wound from M cable containers from the first cable container to the Mth cable container, and inserting the turntable into the insertion port of the cable container body with the receiving member removed from the cable container body in the specific cable container, coupling the receiving member to the cable container body, and placing the receiving member on the turntable to place the specific cable container on the turntable. A fifth step, and a sixth step of rotationally driving the turntable to pay out the specific cable from the specific cable container and load it into the cable storage portion of the transportation device.

Effect of the Invention

[0010] According to one aspect of the present disclosure, instead of stacking a plurality of cables wound up in the storage process on the same cable container, they are respectively accommodated in different cable containers. Therefore, no matter which of the plurality of cables in storage has a shipping request, a turntable is attached to the specific cable container that houses the specific cable for which the shipping request has occurred, and the specific cable is shipped by feeding the specific cable into the cable storage section of the transportation device. Accordingly, no matter which cable has a shipping request, it is possible to quickly respond to the shipping request. In addition, since the influence received due to the gradient and unevenness of the road surface can be reduced, cable storage and shipping can be performed in a wider range of cable storage locations.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Mode for Carrying Out the Invention

[0012] (First Embodiment) FIG. 1 is a front view showing a storage location 100 where a cable container 2 and a turntable 3 are arranged, and a laying barge 1 adjacent to the storage location 100 in the cable storage and shipping method according to the first embodiment. As shown in FIG. 1, the storage location 100 for the cable C is provided in a place close to a port where the laying barge 1 can berth so that the cable C carried by the laying barge 1 can be stored on the spot. That is, the storage location 100 is land adjacent to a quay facing the sea. The laying barge 1 is an example of a transportation device for transporting the cable C. The laying barge 1 has a cable storage section 21 that is a cable container and a turntable 22 that rotates the cable storage section 21. The cable C manufactured at the cable factory is loaded into the cable storage section 21 of the laying barge 1, and the laying barge 1 loaded with the cable C moves to the storage location 100, and the cable C is unloaded from the laying barge 1 to the storage location 100.

[0013] In the storage location 100, a plurality of cable containers 2 capable of accommodating the cable C therein are arranged. In the storage location 100, a turntable 3 that enters the cable container 2 and rotationally drives the cable container 2 for winding or unwinding the cable C is arranged. The number of turntables 3 is less than the number of cable containers 2. In the present embodiment, the number of cable containers 2 is three, and the number of turntables 3 is one.

[0014] FIG. 2 is a perspective view of the cable container 2. As shown in FIG. 2, the cable container 2 includes a cable container main body 5 having an insertion port 4 at the center in plan view, and a receiving member 6 that is disposed at the insertion port 4 and is detachably fixed to the cable container main body 5 with a bolt B (see FIG. 6), which is an example of a fastener. The cable container main body 5 has a cable accommodating portion 7 for accommodating the cable C, and a pedestal portion 8 provided below the cable accommodating portion 7 for supporting the cable accommodating portion 7. The cable accommodating portion 7 has an annular accommodating space X for accommodating the cable C. Further, the cable accommodating portion 7 has a disk-shaped bottom wall portion 9, an inner peripheral guide portion 10 protruding upward from an inner portion in the radial direction of the bottom wall portion 9, and an outer peripheral guide portion 11 protruding upward from an outer portion in the radial direction of the bottom wall portion 9. That is, the bottom wall portion 9, the inner peripheral guide portion 10, and the outer peripheral guide portion 11 define an annular accommodating space X that is open upward. In the present embodiment, the inner peripheral guide portion 10 and the outer peripheral guide portion 11 have a cylindrical shape extending in the vertical direction. There is no bottom wall portion 9 inside the inner peripheral guide portion 10 in the cable accommodating portion 7, and an insertion port 4 penetrating the cable accommodating portion 7 in the vertical direction is formed. That is, the inner peripheral portion 10a of the inner peripheral guide portion 10 in the cable accommodating portion 7 defines the insertion port 4.

[0015] The pedestal portion 8 is disposed between the bottom wall portion 9 of the cable housing portion 7 and the ground, and supports the cable housing portion 7 from below. The portion of the cable housing portion 7 where the insertion port 4 is formed is not supported by the pedestal portion 8 and is open downward. That is, directly below the portion of the insertion port 4 of the cable housing portion 7, there is no pedestal portion 8, and a turntable placement space Y is formed. The insertion port 4 of the cable housing portion 7 and the turntable placement space Y of the pedestal portion 8 have a size that allows the turntable 3 (see FIG. 3) to be placed. The horizontal dimension of the insertion port 4 and the turntable placement space Y is large enough for the turntable 3 to pass through, and is larger than the horizontal dimension of the turntable 3.

[0016] The pedestal portion 8 has a jack placement space 8a. The jack placement space 8a is an inverted concave portion formed by notching the lower end of the pedestal portion 8 upward. The jack placement space 8a is open in the horizontal direction. The jack placement space 8a is a space where a jack 16 (see FIG. 5(b)) for lifting the cable container 2 can be placed.

[0017] The receiving member 6 has a plurality of beams 17, and the plurality of beams 17 extend radially in the horizontal direction from the central axis L1. In the present embodiment, the receiving member 6 has four beams 17, and the tip portions 12 of the respective beams 17 abut against the inner peripheral guide portion 10 in the cable housing portion 7 inside the insertion port 4 and are fixed to the inner peripheral guide portion 10 with bolts B. In the present embodiment, the beam 17 is constituted by an H-shaped steel. Note that the receiving member 6 is not particularly limited as long as it is a member that can be detachably fixed to the cable container main body 5 so as to partially or entirely block the insertion port 4 of the cable container main body 5 and can stably rest on the turntable 3.

[0018] Note that, as shown in FIG. 2, a form in which the inner peripheral guide portion 10 and the outer peripheral guide portion 11 have a cylindrical shape extending in the vertical direction is described, but the present invention is not limited to the above-described embodiment. The inner peripheral guide portion 10 and the outer peripheral guide portion 11 in the cable container 2 may be configured by a combination of a plurality of pipes. In that case, the receiving member 6 does not have to be fixed to the inner peripheral portion 10a of the inner peripheral guide portion 10 by the bolt B. For example, in each of the beams 17 of the receiving member 6, the distance from the central axis L1 to the tip portion 12 is increased, the lower surface of the peripheral portion of the tip portion 12 of the beam 17 is brought into contact with the upper surface of the bottom wall portion 9 of the cable housing portion 7, and the lower surface of the beam 17 of the receiving member 6 and the upper surface of the bottom wall portion 9 of the cable housing portion 7 may be fastened in the vertical direction by bolts from below the bottom wall portion 9. Further, the configuration of the cable container main body 5 may be other configurations as long as the cable C can be housed in the housing space X.

[0019] FIG. 3 is a perspective view of the turntable 3. As shown in FIG. 3, the turntable 3 includes a rotating table portion 13, a base portion 14 disposed below the rotating table portion 13, and a connecting portion 15 disposed between the rotating table portion 13 and the base portion 14 and connecting the rotating table 13 to the base portion 14 rotatably. The rotating table portion 13 and the base portion 14 have a cylindrical shape. The turntable 3 has, for example, a driving portion that drives the rotating table portion 13 so as to rotate the rotating table portion 13 with respect to the base portion 14. The driving portion includes, for example, an electric motor. When the driving portion rotationally drives the rotating table portion 13, the rotating table portion 13 rotates with respect to the base portion 14.

[0020] Next, a storage process of receiving and storing the cable C loaded on the laying barge 1 in the cable container 2 disposed in the storage location 100 will be described.

[0021] As shown in FIG. 1, when the laying barge 1 loaded with the cable C arrives at the port having the storage location 100, the cable C accommodated in the cable storage section 21 of the laying barge 1 is fed out toward the cable container 2 arranged at the storage location 100, and the cable container 2 arranged at the storage location 100 rotates to wind up the cable C and accommodate the cable C in the accommodation space X of the cable container 2. The cable container 2 containing the cable C is stored at the storage location 100. Further, the laying barge 1 conveys different cables C over a plurality of times, and different cable containers 2 at the storage location 100 receive the cables C mounted on the laying barge 1, and this is repeated a plurality of times. As a result, a plurality of cable containers 2 each containing a plurality of different cables C are stored at the storage location 100. The laying barge 1 that conveys the cable C to the storage location 100 over a plurality of times may be a different laying barge each time, or may be the same laying barge.

[0022] FIG. 4 shows a perspective view of the cable container main body 5 and the turntable 3 when the turntable 3 is inserted into the cable container main body 5. As shown in FIG. 4, the turntable 3 is inserted from above into the insertion port 4 of the cable storage section 7 in the cable container main body 5. In the present embodiment, the crane 18 suspends the turntable 3 via the wire 19 and moves the turntable 3 by moving while holding the turntable 3. When the turntable 3 reaches a position above the insertion port 4, the crane 18 lowers the turntable 3 and inserts the turntable 3 into the insertion port 4 from above.

[0023] FIG. 5(a) shows a side view of the cable container main body 5 and the turntable 3 in a state where the turntable 3 is inserted into the insertion port 4 of the cable storage section 7 of the cable container main body 5. In the state shown in FIG. 5(a), since the cable container main body 5 is directly arranged on the ground, the height of the upper end of the turntable 3 is higher than the height of the bottom wall portion 9 of the cable container main body 5.

[0024] Figure 5(b) shows a side view of the cable container body 5 and the turntable 3 in a state where the cable container body 5 is being lifted by the jack 16 and the receiving member 6 is about to be attached. As shown in Figure 5(b), the jack 16 is disposed below the cable container body 5, and by jacking up the jack 16, the jack 16 lifts the cable container body 5 upward. As a result, the cable container body 5 is in a state of floating from the ground. At this time, since the cable container body 5 is being lifted, the height of the bottom wall portion 9 of the cable storage portion 7 in the cable container body 5 becomes substantially the same as the height of the upper end of the turntable 3. Therefore, the inner peripheral portion 10a of the inner peripheral guide portion 10 is disposed at a position higher than the upper end of the turntable 3 inside the insertion port 4. In this state, the receiving member 6 is attached to the inner peripheral portion 10a of the inner peripheral guide portion 10.

[0025] Fig. 6 shows a perspective view of the cable container 2 in a state where the receiving member 6 is attached to the inner peripheral portion 10a of the inner peripheral guide portion 10 in the cable housing portion 7 of the cable container main body 5 inside the insertion port 4. As shown in Fig. 6, since the cable container 2 is being lifted by the jacking up of the jack 16, there is no turntable 3 in the space inside the inner peripheral portion 10a of the inner peripheral guide portion 10, and the receiving member 6 is attached to the inner peripheral portion 10a of the inner peripheral guide portion 10 of the cable container 2. The receiving member 6 abuts against the inner peripheral portion 10a of the inner peripheral guide portion 10 of the cable container main body 5 at the tip portion 12 of the tip of the beam 17 and is bolted to each other with bolts B. In the present embodiment, for example, bolt holes are provided in the tip portion 12 of the receiving member 6, and bolt holes are provided at positions where the tip portion 12 of the receiving member 6 abuts against the inner peripheral guide portion 10 of the cable container main body 5. By inserting bolts B into the bolt holes of the inner peripheral guide portion 10 and the receiving member 6, the cable container main body 5 and the receiving member 6 are fastened to each other by bolting. The cable container 2 is a combination of the cable container main body 5 and the receiving member 6 coupled to the cable container main body 5. Note that the connection of the receiving member 6 to the cable container main body 5 may be by other methods. For example, a receiving seat may be attached to the inner peripheral portion 10a of the inner peripheral guide portion 10 of the cable container main body 5, the receiving member 6 may be attached to the receiving seat, and the inner peripheral portion 10a of the cable container main body 5 and the receiving member 6 may be connected via the receiving seat. Also, the receiving member 6 may be coupled to the cable container main body 5 by a configuration other than fastening with a fastener such as a bolt B. For example, a convex portion protruding outward may be provided at the tip portion 12 of the beam 17 in the receiving member 6, a concave portion may be provided in the inner peripheral guide portion 10 of the cable container main body 5, and the receiving member 6 may be coupled to the cable container main body 5 by fitting the convex portion and the concave portion. The receiving member 6 may be coupled to the cable container main body 5 so as to be relatively non-displaceable by a locking mechanism. Also, the inner peripheral portion 10a of the inner peripheral guide portion 10 of the cable container main body 5 and the receiving member 6 may be connected by other methods. If the receiving member 6 is detachably coupled to the cable container main body 5 so as to partially or entirely block the insertion port 4 of the cable container main body 5, the connection between the receiving member 6 and the cable container main body 5 may be of other configurations.

[0026] Figure 7 shows a side view of the cable container body 5, the turntable 3, and the receiving member 6 in a state where the cable container body 5 is lowered from the jack 16 and the jack 16 is removed. As shown in Figure 7, even when the jack 16 is removed from the cable container 2, the lower surface of the receiving member 6 and the turntable 3 are in contact, and the cable container body 5 is supported by the turntable 3 via the receiving member 6, and the cable container body 5 is in a floating state from the ground. Therefore, the cable container 2 is in a state of being supported by the rotating table portion 13 of the turntable 3.

[0027] Figure 8 shows a side view of the cable container 2 and the turntable 3 in a state where the turntable 3 is rotationally driven to wind up the cable C. As shown in Figure 8, when the jack 16 is removed, the cable container 2 is supported by the rotating table portion 13 of the turntable 3. Therefore, by rotationally driving the turntable 3 to rotate the rotating table portion 13, the cable container 2 can be rotated.

[0028] Figure 9 shows a front view showing a state in which the cable C from the laying barge 1 is wound up by the cable container 2 at the storage location 100. When the cable container 2 is rotated around the vertical axis with the tip of the cable C being paid out wound around the inner circumferential guide portion 10 of the cable container 2, as shown in Figure 9, the cable C loaded on the laying barge 1 moves toward the cable container 2, and the cable C is wound up by the cable container. As a result, the cable C is accommodated in the accommodation space X of the cable container 2.

[0029] When the winding of the cable C by the cable container 2 is completed, the receiving member 6 is removed from the cable container 2, and the turntable 3 is removed from the cable container body 5 of the cable container 2. When removing the turntable 3 from the cable container body 5, the steps of FIGS. 4 to 7 are performed in the reverse order. When the turntable 3 is removed from the cable container body 5 of the cable container 2, the cable container 2 containing the cable C is placed at a predetermined position in the storage location 100 and stored there. While the cable container 2 is stored in the storage location 100, the receiving member 6 may be attached to the cable container body 5 or may be removed from the cable container body 5. The receiving member 6 may be attached to the cable container body 5 only when the cable C is being wound around the cable container body 5 of the cable container 2. Also, in the cable storage process, the receiving member 6 may remain attached to the cable container body 5 all the time while the cable container 2 winds up the cable C and is stored in the storage location 100. After the cable C is accommodated in the cable container body 5 and the turntable 3 is removed from the cable container 2, the receiving member 6 may be attached to the cable container body 5, and the cable container 2 may be stored in the storage location 100 in that state.

[0030] By repeating the set of steps until the cable container 2 winds up the cable C mounted on the laying barge 1 and places the cable container 2 at the storage position in the storage location 100 M times, different cables C are respectively accommodated in M cable containers 2, and the M cable containers 2 are stored side by side in the storage location 100 (M is a natural number of 2 or more). At this time, the cable container 2 used in the Nth set among the sets repeated M times is referred to as the Nth cable container (N is a natural number). The cable C accommodated in the Nth cable container is referred to as the Nth cable.

[0031] Next, a shipping process will be described for loading and shipping a specific cable C (specific cable Ca) for which a shipping request has occurred, out of the plurality of cables C stored in the storage location 100, onto the laying barge 1.

[0032] First, among the M cables C from the first cable to the Mth cable stored in the storage location 100, the specific cable Ca for which a shipping request has occurred is selected. Also, along with the selection of the specific cable Ca, the cable container 2 (specific cable container 2a) that houses the specific cable Ca is selected from among the M cable containers 2 from the first cable container 2 to the Mth cable container 2. The selected specific cable container 2a that houses the specific cable Ca is placed on the turntable 3. Since the procedure is the same as the procedure shown in FIGS. 4 to 7, a detailed description thereof will be omitted.

[0033] FIG. 10 shows a front view of the storage location when the specific cable Ca fed out from the specific cable container 2a in the storage location 100 is wound around the cable storage portion 21 of the laying barge 1, and the laying barge in the vicinity of the storage location. As shown in FIG. 10, with the specific cable container 2a placed on the turntable 3, the rotating table portion 13 of the turntable 3 is rotated to rotate the specific cable container 2a, thereby feeding out the specific cable Ca from the specific cable container 2a toward the cable storage portion 21 of the laying barge 1. The specific cable Ca fed out from the specific cable container 2a is wound around the cable storage portion 21 of the laying barge 1 and loaded onto the laying barge 1. The rotation direction of the turntable 3 at the time of shipping is rotated in the direction opposite to the rotation direction of the turntable 3 at the time of storage.

[0034] Even in the shipping process of the specific cable Ca, after all of the specific cables Ca stored in the cable container main body 5 have been paid out, the receiving member 6 may be attached to the cable container main body 5 or may be removed from the cable container main body 5. The receiving member 6 may be attached to the cable container main body 5 only when the specific cable Ca is being paid out from the cable container main body 5. Also, the receiving member 6 may remain attached to the cable container main body 5 all the while the specific cable container 2a is stored in the storage location 100 after all of the specific cables Ca have been paid out in the cable shipping process. After the specific cable Ca stored in the cable container main body 5 has been paid out and the turntable 3 has been removed from the specific cable container 2a, the receiving member 6 may be attached to the cable container main body 5 and the specific cable container 2a may be stored in the storage location 100 in that state.

[0035] FIG. 11 shows a flowchart for explaining the cable storage method. As shown in FIG. 11, initially, N is set to 1 (step S1). Next, the turntable 3 is inserted into the inside of the insertion port 4 of the cable container body 5 in the first cable container 2 (step S2). Next, the receiving member 6 is attached to the inner peripheral portion 10a of the inner peripheral guide portion 10 of the cable container body 5 in the first cable container 2, and in that state, the receiving member 6 of the first cable container 2 is placed on the turntable 3 (S3). With the first cable container 2 placed on the turntable 3, the turntable 3 is rotationally driven (step S4). As a result, the first cable container 2 rotates, and the cable C is wound around the first cable container 2. Next, it is determined whether or not the winding of the first cable C is completed (step S5). If the winding of the first cable C around the first cable container 2 is not completed, the winding of the first cable C around the first cable container 2 continues. When the winding of the first cable C around the first cable container 2 is completed, the receiving member 6 is removed from the cable container body 5 and the turntable 3 is removed from the first cable container 2 in a procedure reverse to that described in FIGS. 4 to 7 (step S6). The first cable container 2 containing the first cable C is stored in the storage location 100 (step S7).

[0036] If the winding of the first to the Mth cables C is not completed, N is incremented (step S9), and steps S2 to S7 are performed. If the winding of the first to the Mth cables C is completed, the process ends.

[0037] Next, for a specific cable C (specific cable Ca) for which a shipping request has occurred among the plurality of cables C stored in the storage location 100, the shipping process when the cable C is paid out, loaded onto the laying barge 1, and shipped will be described.

[0038] FIG. 12 is a flowchart for explaining the cable shipping method. As shown in FIG. 12, when a shipping request occurs for any of the cables C being stored in the storage location 100 (step S11: Y), the turntable 3 is inserted into the insertion port 4 of the specific cable container 2a that houses the specific cable Ca for which the shipping request has occurred (step S12). Next, the receiving member 6 is attached to the specific cable container 2a, and the specific cable container 2a is placed on the turntable 3 (step S13). Then, the turntable 3 is rotationally driven to pay out the specific cable Ca from the specific cable container 2a toward the laying barge 1 (step S14). When paying out the specific cable Ca from the specific cable container 2a toward the laying barge 1, the procedure until the receiving member 6 is attached to the specific cable container 2a and the specific cable container 2a to which the receiving member 6 is attached is placed on the turntable 3 is the same as the procedure shown in FIGS. 4 to 7. When the payout of the specific cable Ca from the specific cable container 2a is completed (step S15: Y), the process ends.

[0039] With the specific cable container 2a placed on the turntable 3, the rotating table portion 13 of the turntable 3 is rotated to rotate the specific cable container 2a, thereby paying out the specific cable Ca from the specific cable container 2a toward the cable storage portion 21 of the laying barge 1. The specific cable Ca paid out from the specific cable container 2a is wound up in the cable storage portion 21 of the laying barge 1 and loaded onto the laying barge 1. The rotation direction of the turntable 3 during shipping is rotated in the opposite direction to the rotation direction of the turntable 3 during storage.

[0040] According to the method described above, the first to Mth cables C stored in the storage location 100 are not stacked on the same cable container 2, but rather the first to Mth cables C are each housed in different cable containers 2. Therefore, even if a shipping request occurs for any of the first to Mth cables C during storage, the turntable 3 can be attached to the specific cable container 2a that houses the specific cable Ca for which the shipping request has occurred, and the shipping request can be quickly responded to.

[0041] Further, after the turntable 3 is rotationally driven to wind the cable C by the cable container 2, the turntable 3 is removed from the cable container 2, and the cable container 2 is stored in the storage location 100 together with the cable C. Therefore, one turntable 3 can be shared among a plurality of cable containers 2. Thus, the number of turntables 3 can be reduced, and the cost for storing the cable C can be reduced.

[0042] Also, in the present embodiment, although the crane 18 is used, it is the turntable 3 that is moved by the crane 18. The turntable 3 is lighter than the cable container 2. Therefore, even when the crane 18 is used, it is only necessary to move the turntable 3 by the crane 18, so the turntable 3 can be moved by a crane with a light load capacity to wind the cable C onto the cable container 2. Accordingly, it is not necessary to use a special crane with a large load capacity, and it is possible to suppress an increase in the waiting time required for arranging the crane. Also, it is possible to suppress an increase in the cost for arranging the crane. Also, it is not necessary to secure a space for installing a large crane, and the range of the site where the cable C can be wound can be expanded. Also, by reducing the energy consumption of the crane, the cost for operating the crane can be reduced.

[0043] Also, according to the present embodiment, the cable C can be wound onto the cable container 2 without using a cart. Since it is not necessary to move either the cable container or the turntable by the cart, the cable C can be wound onto the cable container 2 even at a location where the road surface has a gradient or unevenness, and the cable C can be wound by the cable container 2 without being restricted by the ground conditions.

[0044] Further, according to the present embodiment, since it is not necessary to move either the cable container or the turntable by the carriage, the cable C can be paid out from the cable container 2 to the laying barge 1 even at a location where the road surface has a gradient or unevenness, and the cable C can be paid out to the laying barge 1 without being restricted by the ground conditions.

[0045] In the above embodiment, the form in which only one turntable 3 is used has been described, but the present invention is not limited to the above embodiment. If the number of turntables 3 required is reduced by repeatedly using the turntable 3 for different cable containers 2, a plurality of turntables 3 may be used. By reducing the number of turntables 3 required, the costs associated with storing or shipping a plurality of cable containers 2 can be reduced.

[0046] Also, in the above embodiment, the form in which three cable containers 2 are arranged in the storage location 100 has been described, but the present invention is not limited to the above embodiment. The number of cable containers 2 stored in the storage location 100 may be any number.

[0047] In the above-described embodiment, the laying barge 1 is used to transport the cable C to the storage location 100 by sea transportation. The specific cable Ca is fed out from the specific cable container 2a toward the laying barge 1 and loaded onto the laying barge 1, and the specific cable Ca is shipped to the destination by sea transportation using the laying barge 1. That is, a ship is exemplified as the transportation equipment for transporting the cable. However, it is not limited to the above-described embodiment. For example, a cable storage unit for accommodating the cable C may be provided in a truck as the transportation equipment, and the cable C may be transported to the storage location 100 by land transportation using the truck. Also, the specific cable Ca may be fed out from the specific cable container 2a toward the cable storage unit of the truck and loaded onto the truck, and the specific cable Ca may be shipped to the destination by land transportation using the truck. Further, the cable C may be transported to the storage location 100 by other transportation equipment other than a truck, and the specific cable Ca may be shipped to the destination using other transportation equipment other than a truck. That is, the cable C may be transported to the storage location not only by sea transportation but also by other transportation methods, and the specific cable Ca may be shipped to the destination by other transportation methods other than sea transportation.

[0048] As described above, the above-described embodiment has been described as an example of the technology disclosed in the present application. However, the technology in the present disclosure is not limited thereto, and is also applicable to embodiments in which changes, replacements, additions, omissions, etc. are appropriately made. Also, it is possible to form a new embodiment by combining the respective components described in the above-described embodiment. For example, a part of the configuration or method in one embodiment may be applied to another embodiment, and a part of the configuration in an embodiment can be arbitrarily extracted separately from other configurations in that embodiment. Also, among the components described in the accompanying drawings and the detailed description, there are not only components essential for solving the problem, but also components not essential for solving the problem for exemplifying the technology.

[0049] Each of the following items discloses a preferred embodiment.

[0050] [Item 1] A cable container body having an insertion port disposed at the center in a plan view and a cable storage portion disposed outside the insertion port in the horizontal direction, and a receiving member disposed at the insertion port and detachably coupled to the cable container body. A storage process of storing a plurality of cables in each of a plurality of cable containers, A shipping process of shipping the stored cables, and The storage process includes In the Nth cable container (N is a natural number), with the receiving member removed from the cable container body, inserting the turntable into the insertion port of the cable container body, coupling the receiving member to the cable container body, and placing the receiving member on the turntable to place the Nth cable container on the turntable in a first step; A second step of rotationally driving the turntable to wind the Nth cable around the Nth cable container; A third step of removing the receiving member from the cable container body with respect to the Nth cable container around which the Nth cable has been wound, and relatively displacing the turntable to remove the turntable from the Nth cable container; A fourth step of storing the Nth cable container from which the turntable has been removed together with the Nth cable, and including Let N = 1 to M (M is a natural number of 2 or more), and repeat the set from the first step to the fourth step from the first time to the Mth time, The shipping process includes Among the M cables from the stored first cable to the Mth cable, select a specific cable container in which the specific cable for which a shipping request has occurred has been wound up from the M cable containers from the first cable container to the Mth cable container. With the receiving member removed from the cable container body in the specific cable container, insert the turntable into the insertion port of the cable container body, couple the receiving member to the cable container body, and place the receiving member on the turntable to place the specific cable container on the turntable in a fifth step; A sixth step of rotationally driving the turntable to pay out the specific cable from the specific cable container and load it into the cable storage section of the transport device, including a method for storing and shipping cables.

[0051] [Item 2] When inserting the turntable into the insertion port, the turntable is suspended by a crane and inserted into the insertion port from above. The method for storing and shipping cables according to Item 1.

[0052] [Item 3] When coupling the receiving member to the Nth cable container body, Place the cable container body on the jack, Lift the cable container body upward by the jack, and then couple the receiving member to the inner peripheral portion defining the insertion port of the cable container body so as to at least partially block the insertion port of the cable container body, Lower the Nth cable container from the jack. The method for storing and shipping cables according to Item 1 or 2.

Explanation of Signs

[0053] 1 Laying barge 2 Cable container 2a Specific cable container 3 Turntable 4 Insertion port 5 Cable container body 6 Receiving member 10 Inner peripheral guide portion 10a Inner peripheral portion 16 Jack 18 Crane B Bolt C Cable Ca Specific cable 100 Storage location

Claims

1. a storage process for storing a plurality of cables in a plurality of cable containers each including a cable container body having an insertion opening disposed at the center in a plan view and a cable housing portion disposed horizontally outward of the insertion opening, and a receiving member disposed at the insertion opening and detachably coupled to the cable container body; A shipping step of shipping the stored cable, The storage step includes: a first step of inserting a turntable into the insertion opening of the cable container body in a state in which the receiving member is removed from the cable container body of an Nth cable container (N is a natural number), coupling the receiving member to the cable container body, and placing the receiving member on the turntable to place the Nth cable container on the turntable; a second step of rotating the turntable to wind an Nth cable around the Nth cable container; a third step of removing the receiving member from the cable container body with respect to the Nth cable container in which the Nth cable has been wound, and relatively displacing the turntable to remove the turntable from the Nth cable container; and a fourth step of storing the Nth cable container from which the turntable has been removed together with the Nth cable, N=1 to M (M is a natural number equal to or greater than 2), and the set of the first step to the fourth step is repeated from the first to the Mth times; The shipping step includes: a fifth step of selecting a specific cable container in which a specific cable for which a shipping request has occurred is wound among the M stored cables from the first cable container to the Mth cable container, and, in a state in which the receiving member of the specific cable container is removed from the cable container body, inserting the turntable into the insertion opening of the cable container body, coupling the receiving member to the cable container body, and placing the receiving member on the turntable, thereby placing the specific cable container on the turntable; and a sixth step of rotating the turntable to pay out the specific cable from the specific cable container and load it into a cable storage section of a transportation device.

2. 2. The cable storage and shipping method according to claim 1, wherein when inserting the turntable into the insertion opening, the turntable is suspended by a crane and inserted into the insertion opening from above.

3. When the receiving member is coupled to the Nth cable container body, The cable container body is placed on a jack, Lifting the cable container body upward with the jack, and then coupling the receiving member to an inner periphery defining the insertion opening of the cable container body so as to at least partially block the insertion opening of the cable container body; 3. The method for storing and shipping cables according to claim 1 or 2, further comprising lowering the Nth cable container from the jack.

Images