Cable storage method and cable storage system

Abstract

A cable storage method and a cable storage system are provided that allow cables to be easily stored. [Solution] The cable storage method S1 disclosed herein is a cable storage method S1 for a cable storage system comprising a cable container having an axis around which the cable is wound and a transport cart, and comprises a rotation step S11 in which the transport cart is driven to rotate the cable container so that the cable is wound around the axis, and a winding step S12 in which the cable is wound around the axis of the cable container rotated in the rotation step S11.

Description

[Technical Field]

[0001] The present disclosure relates to a cable storage method and system. [Background technology]

[0002] Conventionally, cables are wound in cable containers. Patent document 1 discloses that when one end of the winding tube is grasped and pulled out, the wheels of the four arms roll in a circular motion around the shaft of the main body, and the four arms rotate clockwise around the shaft of the main body, thereby allowing the tube to be unwound sequentially from the winding tube and placed in the desired position. Patent document 2 discloses that a slewing ring bearing is positioned and fixed within the frame structure of the portable drive unit, and this slewing ring bearing rotates the basket when the basket abuts the portable drive unit and an elongated element is wound onto or unwound from the basket. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3208038 [Patent Document 2] Special Publication No. 2020-504697 Summary of the Invention [Problem to be solved by the invention]

[0004] However, Patent Document 1 does not anticipate the winding of a tube, and Patent Document 2 does not anticipate the winding of an elongated element onto a basket by the traveling of a portable drive unit.

[0005] The present disclosure has been made in consideration of the above-mentioned circumstances, and aims to provide a cable storage method and a cable storage system that allow cables to be easily stored. [Means for solving the problem]

[0006] In order to solve the above problems, the present disclosure proposes the following means. The cable storage method according to the present disclosure is a cable storage method for a cable storage system including a cable container having an axis around which a cable is wound and a transport cart, and includes a rotation step of running the transport cart to rotate the cable container so that the cable is wound around the axis, and a winding step of winding the cable around the axis of the cable container rotated in the rotation step.

[0007] The cable storage system according to the present disclosure is a cable storage system comprising a cable container having an axis around which a cable is wound, and a transport cart, wherein the transport cart travels to rotate the cable container so that the cable is wound around the axis, and the cable container is rotated by the transport cart, thereby winding the cable around the axis. [Effects of the Invention]

[0008] According to the present disclosure, it is possible to provide a cable storage method and a cable storage system that allow cables to be easily stored. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic diagram of a cable storage system according to an embodiment. [Figure 2] FIG. 1 is a perspective view showing a cable container and a transport vehicle according to an embodiment. [Figure 3] FIG. 1 is a perspective view showing a ship according to an embodiment. [Figure 4] FIG. 1 is a diagram showing a flow of a cable storage method according to an embodiment. [Figure 5] FIG. 10 is a schematic diagram showing a modified example in which the transporting vehicle according to the embodiment travels on a bridge. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, a cable storage system according to one embodiment of the present disclosure will be described with reference to the drawings. First, a cable storage method according to this embodiment will be described. For example, cables are used to transmit electricity generated by wind power to a substation on land (or to a substation in another location, such as an offshore substation). If the existing cables installed in the offshore wind turbines deteriorate or become damaged over time, they must be replaced with new ones. The cable storage system according to this embodiment is a system in which a cable is wound in a cable container and stored in advance in preparation for replacement of an existing cable.

[0011] (Outline of the cable storage system) As shown in FIG. 1, the cable storage system 1 includes a cable container 10 having a shaft 11 around which a cable C is wound, and a transport vehicle 20.

[0012] (cable) The cable C is, for example, a submarine cable laid on the seabed, and any known cable can be suitably used. The cable C may be, for example, a power cable used for transmitting electricity, an optical fiber cable used for communications, or a composite cable of these. Alternatively, the cable C may be a hollow pipe (made of rubber or the like) for water supply, which is not intended for use as an electric wire. The cable C is, for example, newly manufactured in a factory, then loaded onto the ship 30, and transported to the quay. Alternatively, the cable C is, for example, used at a cable laying site in the sea, then loaded onto the ship 30, and transported to the quay. The cable C is unwound from the ship 30 at the quay and wound into the cable container 10. The cable C newly manufactured in a factory and wound into the cable container 10 is stored in a stockyard Y near the quay, and is shipped as appropriate when replacement or repair of the cable C is required.

[0013] (boat) As shown in Fig. 1, the cable C wound around the cable container 10 may be loaded onto a ship 30. The ship 30 may be, for example, a barge, a self-propelled ship, or a cable-laying ship. Here, the cable-laying ship is, for example, a ship 30 for laying the cable C on the seabed, but the cable-laying ship may also be used to transport the cable C. In the following description, the ship 30 will be described as a publicly known barge.

[0014] As shown in FIG. 3, the ship 30 is preferably equipped with a turntable 33. The turntable 33 is installed, for example, on deck D. A new replacement cable C manufactured in a factory can be wound onto the turntable 33. Also, for example, after replacement work has been carried out at a cable laying site, the old cable C can be wound onto the turntable 33. The turntable 33 rotates when the cable C is wound up. The turntable 33 may be rotated by a hydraulic motor, or may be rotated electrically or manually. Generally, a cable laying ship that often handles cables C may be equipped with a turntable 33.

[0015] The turntable 33 is provided to prevent the cable C from becoming tangled or bulky on the ship 30. The turntable 33 may be rotatable as the cable C is wound or unwound.

[0016] The ship 30 does not necessarily have to be provided with the turntable 33. For example, a cable-laying unit (not shown) equipped with the turntable 33 may be mounted on the ship 30. The cable laying unit refers to a unit in which multiple devices and facilities used for laying the cable C are packaged together. The cable laying unit is installed on a ship 30, for example.

[0017] (cable container) As shown in Fig. 2, the cable container 10 is a container for storing a cable C. The cable container 10 has a cylindrical shape that extends vertically. A worker can store the cable C by winding the cable C around the cable container 10. The cable container 10 includes a shaft 11 for winding the cable C thereon.

[0018] The shaft 11 has a cylindrical shape extending in the vertical direction and is located in the center of the cable container 10. When the cable C is wound around the cable container 10, it is preferable that the cable C be wound around the shaft 11 as the center.

[0019] The cable container 10 preferably comprises a bottom wall 15. The bottom wall 15 can support, for example, the cable C wound in the cable container 10. The bottom wall 15 may be a circular plate-like member as shown in Fig. 2. Alternatively, the bottom wall 15 of the cable container 10 may be formed by combining rod-like members in a lattice pattern on the bottom of the cable container 10.

[0020] The cable container 10 may include side walls 12. The side walls 12, for example, prevent the cables C from falling out of the cable container 10. The side walls 12 may be omitted. 2, the side wall 12 may form the outer peripheral surface of the cable container 10. Alternatively, the side wall 12 of the cable container 10 may be formed by combining rod-shaped members in a lattice pattern on the outer periphery of the cable container 10.

[0021] The cable container 10 has a gap 13 between the axis 11 and the side wall 12. The cable C is wound in the gap 13 on the bottom wall 15. At this time, the cable C may be wound so as to be laid out in layers on the bottom wall 15. Alternatively, the cable C may be wound so as to be wound around the axis 11. Alternatively, the cable C may be wound in layers.

[0022] The cable container 10 may have two or more legs 14. For example, the number of legs 14 may be two, or three or more. It is also possible to have no legs 14. The legs 14 are members that extend vertically and are provided downward from the bottom wall 15 of the cable container 10. The legs 14 abut against the ground. The ground is the ground at the location where the cable container 10 is installed, such as a stockyard Y or a quay. The position of the legs 14 is not particularly limited, but it is preferable that they are provided at a position that allows the cable container 10 to be stably installed on the ground.

[0023] (Transport vehicle) As shown in FIG. 2, the platform vehicle 20 includes wheels 21 and a platform 22 . A plurality of wheels 21 are provided for each transport vehicle 20. The transport vehicle 20 may be a multi-axle vehicle. The transport vehicle 20 may be self-propelled by driving the wheels 21. For example, a known dolly can be suitably used as the transport vehicle 20.

[0024] The transporting vehicle 20 travels with the cable container 10 loaded thereon, thereby rotating the cable container 10. Furthermore, when the transporting vehicle 20 rotates the cable container 10, the transporting vehicle 20 can travel in such a way as to rotate the cable container 10 around the axis 11.

[0025] The transporting vehicle 20 can travel in both a first direction D1, which is one side around the axis 11, and a second direction D2, which is the other side. In other words, the transporting vehicle 20 can rotate the cable container 10 in both the first direction D1 and the second direction D2. For example, when winding the cable C around the cable container 10, the transporting vehicle 20 rotates in the first direction D1. For example, when unwinding the cable C from the cable container 10, the transporting vehicle 20 rotates in the second direction D2. Note that the rotation directions when winding and unwinding the cable C may be reversed.

[0026] The loading platform 22 is provided on top of the plurality of wheels 21. The transporting vehicle 20 can move the loading platform 22 in the vertical direction. In other words, the transporting vehicle 20 can jack up luggage or structures placed on the loading platform 22.

[0027] The transporting vehicle 20 may be able to enter between the legs 14 of the cable container 10. This causes the loading platform 22 of the transporting vehicle 20 to face the bottom wall 15 of the cable container 10. In this state, the transporting vehicle 20 jacks up the cable container 10, thereby placing the cable container 10 on the loading platform 22 and lifting the legs 14 off the ground.

[0028] There may be a plurality of transporting vehicles 20. In this case, a single cable container 10 may be supported by a plurality of transporting vehicles 20. Also, a single cable container 10 may be rotated or transported by a plurality of transporting vehicles 20.

[0029] (arc-shaped member) As shown in Fig. 1, when winding the cable C, it is preferable that the cable C wound around the axis 11 of the cable container 10 is suspended from above the cable container 10. In order to suspend the cable C from above, for example, an arc-shaped member 40 may be used.

[0030] The arc-shaped member 40 includes a guide portion 41 and a power portion 42 . The guide portion 41 is an arc-shaped member having a gentle curvature. When the cable C is wound around the cable container 10, the cable C is guided along the guide portion 41 and suspended from above the cable container 10.

[0031] The power unit 42 is located, for example, in the center of the guide unit 41. The power unit 42 is provided with a power to pay out the cable C. The power may be, for example, tires 43 having driving force. It is preferable to have a plurality of tires 43. The tires 43 may be provided in pairs, one above the other, sandwiching the cable C. In this way, the cable C can be paid out by rotating the tires 43.

[0032] The power unit 42 may be provided with a hoisting tool 44 at its upper part. This allows the hoisting tool 44 to be hoisted by a work crane 50 or the like, and the arc-shaped member 40 to be suspended from above. The number of hoisting tools 44 may be one, or two or more.

[0033] For example, when winding the cable C onto the cable container 10, the power unit 42 unwinds the cable C along the guide unit 41 in a third direction D3, which is the direction from the ship 30 toward the cable container 10. Conversely, when unwinding the cable C from the cable container 10, the power unit 42 unwinds the cable C along the guide unit 41 in a fourth direction D4, which is the direction from the cable container 10 toward the ship 30.

[0034] When the cable C is unwound from the turntable 33 of the ship 30, it is preferably unwound along the cable chute 70, cable engine 71, and cable guide 72 to the arc-shaped member 40, as shown in FIG. The cable chute 70 is installed on the quay. When the cable C unwound from the turntable 33 passes through the cable chute 70, interference between the quay and the cable can be reduced. The cable engine 71 is provided with power and pays out the cable C in a predetermined direction. When the cable C is unwound from the turntable 33 of the ship 30, the cable engine 71 pays out the cable C in, for example, the third direction D3. The cable guide 72 is located further landward (closer to the cable container 10) than the cable engine 71. The cable guide 72 guides, for example, the cable C that is reeled out from the cable engine 71. The cable guide 72 keeps the cable C in a position that does not contact the ground of the quay, and reeled out to the arc-shaped member 40. This prevents the cable C from contacting the ground of the quay, and prevents the cable C from being damaged. Also, when the cable C is unwound from the cable container 10, it is preferable that it is unwound along the cable chute 70, cable engine 71, and cable guide 72 to the ship 30.

[0035] (Details of the cable storage system) In the cable storage system 1 according to this embodiment, the cable container 10 is rotated by the transport vehicle 20, thereby winding the cable C around the shaft 11. Hereinafter, one mode in which the cable C is wound around the cable container 10 will be described in more detail.

[0036] As shown in Fig. 1 , a new cable C manufactured in a factory is transported to a quay by the ship 30 in a state in which it is wound around a turntable 33 of the ship 30. At the quay, the cable C pulled out from the turntable 33 of the ship 30 is preferably hung from above along an arc-shaped member 40. In this case, it is preferable that the end of the arc-shaped member 40 on the third direction D3 side is located above the cable container 10 so that the cable C can be easily wound around the cable container 10. This allows the cable C to be hung from above the cable container 10.

[0037] The transport vehicle 20 travels with the cable container 10 loaded thereon, rotating the cable container 10. The rotation direction of the cable container 10 is, for example, a first direction D1. At the same time, the cable C unwound from the turntable 33 of the ship 30 is continuously unwound in a third direction D3 by the power unit 42 via the arc-shaped member 40. With the above configuration, the cable C is wound around the cable container 10.

[0038] The cable C manufactured in the factory is wound into a cable container 10 and then stored in a stockyard Y near the quay until there is a request for replacement or repair of the cable C, for example. Thereafter, in response to a request for replacement and repair of the cable C, the cable container 10 may be transported by the transport vehicle 20 and shipped from the stockyard Y. At this time, the cable C wound around the cable container 10 is unwound at the quay and loaded onto the ship 30, for example, by being wound around a turntable 33 of the ship 30 that has come alongside the quay.

[0039] When loading the cable C onto the ship 30, the cable C unwound from the cable container 10 on the quay is preferably hung from above along the arc-shaped member 40. In this case, it is preferable that the end of the arc-shaped member 40 on the fourth direction D4 side be positioned above the turntable 33 so that the cable C can be easily wound around the turntable 33 of the ship 30. This allows the cable C to be hung from above the turntable 33.

[0040] The transport vehicle 20 travels with the cable container 10 loaded thereon, rotating the cable container 10. The rotation direction of the cable container 10 is, for example, the second direction D2. At the same time, the cable C unwound from the cable container 10 is continuously unwound in the fourth direction D4 by the power unit 42 via the arc-shaped member 40. With the above configuration, the cable C is wound around the turntable 33 of the ship 30.

[0041] When rotating the cable container 10, it is preferable to run the transport vehicle 20 so that the cable container 10 rotates around the axis 11. Note that it is only necessary that the cable C can be wound around the cable container 10, and the cable container 10 does not have to rotate around the axis 11. In other words, the transport vehicle 20 does not have to run so as to rotate the cable container 10 around the axis 11.

[0042] Furthermore, the cable C wound around the cable container 10 does not have to be a new cable C manufactured in a factory. The cable C may be an old cable C that has been replaced by a replacement work. For example, the cable C is replaced at the cable laying site, and the old cable C is loaded onto the turntable 33 of the ship 30. In this case, for example, at a quay, the old cable C unwound from the turntable 33 of the ship 30 may be wound into the cable container 10. The cable container 10 after winding the cable C may be moved to, for example, a stockyard Y. Thereafter, the cable C wound into the cable container 10 may be cut to a length that can be transported by land, and transported to a recycling plant.

[0043] (Cable storage method) Next, a cable storage method S1 according to this embodiment will be described. The cable storage method S1 is a method in which a cable C manufactured in a factory is wound around a cable container 10 and stored in advance in preparation for replacing an existing cable C.

[0044] 4 is a flow chart showing a cable storage method S1 of this embodiment. The cable storage method S1 includes a rotation step S11 and a winding step S12. Note that the cable storage method S1 may include a preparation step S10 before the rotation step S11. Each step will be described below.

[0045] (Preparation step) In the preparation step S10, preparations are made before winding the cable C around the cable container 10. The preparation step S10 is carried out at the quay. First, a worker prepares the cable container 10 at the quay. At this time, the cable container 10 is empty and has no cable C wound around it. The cable container 10 may be brought from a stockyard Y near the quay by, for example, a transport vehicle 20.

[0046] Next, the transport vehicle 20 is advanced between the legs 14 of the cable container 10. At this time, the bottom wall 15 of the cable container 10 and the loading platform 22 of the transport vehicle 20 face each other. The worker jacks up the cable container 10 by lifting the loading platform 22 of the transport vehicle 20. At this time, the legs 14 of the cable container 10 leave the ground. Note that the advancement step S15 may be performed in the stockyard Y, and the cable container 10 may be transported by the transport vehicle 20.

[0047] Also, for example, the worker unwinds the cable C loaded on the ship 30 and inserts the cable C into one end of the guide portion 41 of the arc-shaped member 40. After that, the worker drives the power unit 42 to insert the cable C to the other end of the guide portion 41. Next, the hoisting tool 44 of the power unit 42 is hoisted by a crane 50, and the cable C is suspended from above. The above steps complete the preparation step S10. When the preparation step S10 is completed, the process proceeds to the rotation step S11.

[0048] (Rotation Step) In the rotation step S11, the cable container 10 is rotated by running the transport vehicle 20. The rotation step S11 is performed at the quay. In the preparation step S10, the cable container 10 is placed on the transport vehicle 20. In this state, the transport vehicle 20 travels so as to rotate the cable container 10. The rotation direction is, for example, the first direction D1. At this time, it is preferable that the cable container 10 rotates around the axis 11 of the cable container 10.

[0049] In the rotation step S11, the transporting vehicle 20 may be self-propelled. Also, the cable container 10 may not necessarily rotate around the shaft 11 as long as it rotates so that the cable C is wound around it. When the rotation step S11 is completed, the process moves to the winding step S12.

[0050] (winding step) In the winding step S12, the cable C is wound around the cable container 10 that has been rotated in the rotating step S11. The winding step S12 is performed at the quay. More specifically, while rotating the cable container 10 in the rotation step S11, the worker unwinds the cable C from the turntable 33 of the ship 30. The cable C is continuously unwound in the third direction D3 via the arc-shaped member 40. As a result, the cable C is wound around the shaft 11 of the cable container 10.

[0051] The cable C wound around the shaft 11 in the winding step S12 preferably extends linearly. In the winding step S12, the cable C is unwound from the turntable 33 of the ship 30 toward the cable container 10. It is preferable that the worker unwinds the cable C from the turntable 33 while keeping the cable C above the ground of the quay. It is preferable that the worker aligns the cable C along, for example, the cable chute 70, the cable engine 71, and the cable guide 72. This prevents the cable C from coming into contact with the ground of the quay and thus prevents the cable C from being damaged. It is preferable that the cable C extending on the quay between the turntable 33 of the ship 30 and the cable container 10 be straight. Straight means, for example, that the cable C extends straight on the quay without meandering when viewed vertically. In addition, if the cable C cannot be arranged in a straight line or if the distance from the ship 30 to the cable container 10 is long, a cable guide 72 or a cable engine 71 may be used.

[0052] The worker winds the cable C in the gap 13 of the cable container 10. The worker may wind the cable C so that it is laid out in layers on the bottom wall 15. The worker may also wind the cable C so that it is wound around the shaft 11. The worker may also wind the cable C in layers. When all the cables C loaded on the ship 30 have been wound, the winding step S12 is completed.

[0053] (First transport step) The cable storage method S1 may further include a first conveying step S13. When the winding step S12 is completed, the process proceeds to the first conveying step S13. In the first transport step S13, the cable container 10 around which the cable C has been wound in the winding step S12 is transported by the transport vehicle 20. The cable container 10 around which the cable C has been wound is transported to, for example, a stockyard Y near a quay. In the first transfer step S13, the transfer vehicle 20 may be self-propelled. The transfer vehicle 20 in the first transfer step S13 is preferably the same as the transfer vehicle 20 in the rotation step S11, but may be different. The first transport step S13 is completed through the above steps.

[0054] (Exit step) The cable storage method S1 may further include a detaching step S14. When the first transporting step S13 is completed, the process proceeds to the detaching step S14. The separation step S14 is performed in the stockyard Y.

[0055] In the detaching step S14, the transporting vehicle 20 jacks down the cable container 10 and lowers the cable container 10 from the loading platform 22. At this time, the legs 14 provided on the cable container 10 come into contact with the ground. The cable container 10 with the cable C wound therein is stored in the stockyard Y until a request for replacement or repair of the cable C is made. When the leaving step S14 is completed and the cable C is to be shipped for replacement and repair, the process proceeds to the entering step S15.

[0056] (Entry step) In the entering step S15, the transporting vehicle 20 is entered between two or more legs 14 provided on the cable container 10. The entering step S15 is performed in the stockyard Y. The worker moves the transport vehicle 20 between the legs 14 of the cable container 10 around which the cable C is wound, and jacks up the loading platform 22 of the transport vehicle 20. At this time, the legs 14 of the cable container 10 are lifted off the ground. This allows the transport vehicle 20 to move with the cable container 10 remaining on the loading platform 22. In the approaching step S15, the transporting vehicle 20 may be self-propelled. The transporting vehicle 20 in the approaching step S15 may be the same as or different from the transporting vehicle 20 in the rotating step S11 or the first transporting step S13.

[0057] (Second transport step) The cable storage method S1 may further include a second transport step S16. When the entry step S15 is completed, the process proceeds to the second transport step S16. In the second transport step S16, the cable container 10 transported to the stockyard Y in the first transport step S13 is transported by the transport vehicle 20 to the quay. In the second transport step S16, the transport vehicle 20 may be self-propelled.

[0058] The cable storage method S1 may further include at least one of a first loading step S18 and a second loading step S19. When the second transport step S16 is completed, the process proceeds to the first loading step S18 or the second loading step S19. If the cable C is wound around the turntable 33 of the ship 30 and transported (S17: Yes), the process proceeds to the first loading step S18. If the cable C is not wound around the turntable 33 of the ship 30 and the cable container 10 is loaded onto the ship 30 and transported (for example, if the ship 30 does not have a turntable 33) (S17: No), the process proceeds to the second loading step S19. In addition, the ship 30 in the first loading step S18 and the second loading step S19 may be a different ship from the ship 30 used to wind the cable C onto the cable container 10 in the preparation step S10, the rotation step S11, and the winding step S12.

[0059] (First loading step) In the first loading step S18, the cable C is unwound from the cable container 10 transported to the quay in the second transportation step S16 and loaded onto the ship 30. When loading the cable C onto the ship 30, it is preferable that the cable C be wound around a turntable 33 of the ship 30. The first loading step S18 is performed at the quay.

[0060] The cable C can be unwound from the cable container 10 in the same manner as in the preparation step S10, the rotation step S11, and the winding step S12. That is, first, the cable C unwound from the cable container 10 is inserted into the guide portion 41 of the arc-shaped member 40, and the arc-shaped member 40 is lifted by a crane 50 or the like.

[0061] Next, the transport vehicle 20 is caused to travel, thereby rotating the cable container 10 in the direction opposite to that of the rotation step S11. The rotation direction is, for example, the second direction D2. At this time, it is preferable to rotate the cable container 10 using the transport vehicle 20 that was used to transport the cable container 10 in the second transport step S16. The cable C is wound around the turntable 33 of the ship 30 by rotating the cable container 10 at the same time as the arc-shaped member 40 continuously unwinds the cable C in the fourth direction D4, which is the opposite direction to the winding step S12. Note that in the first loading step S18, the transport vehicle 20 may be self-propelled. Furthermore, it is preferable that the cable C on the quay extending from the cable container 10 on the quay toward the ship 30 is linear when viewed vertically. When all the cables C have been wound, the first loading step S18 is completed.

[0062] (Second loading step) In the second loading step S19, the cable container 10 transported to the quay in the second transport step S16 is loaded onto the ship 30 by the transport vehicle 20. Note that the ship 30 in the second loading step S19 does not have to be a cable-laying ship, and does not have to be equipped with a turntable 33.

[0063] As shown in FIG. 5, in the second loading step S19, the transport vehicle 20 may travel on a bridge 60 that is built between the quay and the ship 30. The bridge 60 may be, for example, a temporary bridge made of H-shaped steel. The bridge 60 may also be, for example, a ramp way provided on the quay. The bridge 60 may also be, for example, a ramp facility provided on the ship 30. In this case, it is preferable that the ramp facility be a slope with no steps.

[0064] The cable C loaded onto the ship 30 in the first loading step S18 or the second loading step S19 is transported by the ship 30 to a cable-laying site and used for replacement and repair of the cable C. Thereafter, for example, the cable C to be replaced may be loaded at sea, and the ship 30 may transport the cable C to a quay.

[0065] (Effects of this embodiment) As described above, in the cable storage system 1 according to this embodiment, in the rotation step S11, the transport vehicle 20 is caused to travel so as to rotate the cable container 10 so that the cable C is wound around the shaft 11. In addition, in the winding step S12, the cable C is wound around the shaft 11 of the cable container 10. As a result, for example, the cable C can be wound around the shaft 11 of the cable container 10 by the transport vehicle 20 traveling. Therefore, the cable C can be easily stored.

[0066] The cable storage method S1 further includes a first transport step S13 of transporting the cable container 10 around which the cable C is wound by a transport vehicle 20. This allows the transport vehicle 20 to be used for both winding the cable C around the shaft 11 of the cable container 10 and transporting the cable container 10, for example.

[0067] The winding step S12 is performed at the quay. In the first transport step S13, the cable container 10 around which the cable C is wound is transported from the quay to the stockyard Y by the transport vehicle 20. This allows, for example, the cable container 10 to be transported to the stockyard Y, thereby making effective use of the space on the quay.

[0068] Moreover, the cable storage method S1 further includes a second transport step S16 in which the cable container 10 transported to the stockyard Y is transported to a quay by the transport vehicle 20. This allows, for example, the cable container 10 to be quickly transported to the quay.

[0069] The cable storage method S1 further includes a first loading step S18 of winding up the cable C from the cable container 10 transported to the quay and loading it onto the ship 30. This allows, for example, the cable C stored in the cable container 10 to be loaded onto the ship 30. Furthermore, for example, the transport vehicle 20 can be used both to transport the cable container 10 and to load the cable C onto the ship 30.

[0070] The cable storage method S1 further includes a second loading step S19 in which the cable container 10 transported to the quay is loaded onto the ship 30 by the transport vehicle 20. This allows the cable container 10 around which the cable C is wound, for example, to be loaded onto the ship 30.

[0071] Furthermore, in the second loading step S19, the transport vehicle 20 travels on a bridge 60 that is built between the quay and the ship 30. This allows the cable container 10 to be easily loaded by the transport vehicle 20 even if there is a step or gap between the quay and the ship 30, for example.

[0072] Furthermore, the transport vehicle 20 is self-propelled, which allows, for example, the cable container 10 to rotate about the shaft 11 around which the cable C is wound.

[0073] In addition, there are a plurality of transporting vehicles 20. This allows, for example, the cable container 10 to be stably rotated. In addition, for example, the cable container 10 can be stably placed.

[0074] The cable storage method S1 further includes an entry step S15 of entering the transport vehicle 20 between two or more legs 14 provided on the cable container 10. This allows the cable container 10 to be easily supported by the transport vehicle 20, for example.

[0075] Furthermore, the cable C wound around the shaft 11 in the winding step S12 is the cable that was loaded on the ship 30. That is, in the winding step S12, the cable C is wound from the ship 30 onto the cable container 10. This allows the cable C that was loaded on the ship 30 to be stored in the cable container 10, for example.

[0076] Furthermore, the cable C wound around the shaft 11 is suspended from above the cable container 10. This allows the cable C to be easily wound even in a cable container 10 that has side walls 12, for example.

[0077] Furthermore, the cable C is routed along the arc-shaped member 40 located above the cable container 10. This makes it possible to suppress, for example, buckling of the cable C. Therefore, the cable C can be wound and stored in a good condition.

[0078] The arc-shaped member 40 is provided with a power source, which allows the cable C to be smoothly paid out along the arc-shaped member 40 in the desired direction.

[0079] Furthermore, the cable C extends linearly. This makes it possible to suppress buckling of the cable C, even when the cable C is long. Therefore, the cable C can be wound and stored in a good condition. In addition, for example, the length of the cable C extending from the ship 30 to the cable container 10 can be minimized. Therefore, for example, the workability when winding and unwinding the cable C can be improved.

[0080] According to the cable storage system 1 of this embodiment, the transport vehicle 20 travels to rotate the cable container 10 so that the cable C is wound around the shaft 11 on which the cable C is wound. Furthermore, by rotating the cable container 10 by the transport vehicle 20, the cable C is wound around the shaft 11. With the above configuration, for example, the cable C can be wound around the shaft 11 of the cable container 10 by the transport vehicle 20 traveling. Therefore, the cable C can be easily stored.

[0081] The technical scope of the present disclosure is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present disclosure.

[0082] For example, the cable container 10 may not have side walls 12 . Furthermore, the number of transporting vehicles 20 may be one. Furthermore, the transporting vehicle 20 does not have to be self-propelled. For example, the cable container 10 may be rotated by pulling the transporting vehicle 20. Furthermore, the cable C does not have to be suspended from above the cable container 10. For example, the arc-shaped member 40 and the power unit 42 may not be present. The cable storage method S1 may not include any or all of the steps of the preparation step S10, the first transport step S13, the second transport step S16, the first loading step S18, the second loading step S19, the withdrawal step S14, and the entry step S15. The winding step S12 does not have to be performed at the quay, but may be performed in a stockyard Y or the like, for example.

[0083] (Addendum) The embodiment can be understood, for example, as follows.

[0084] <1> A cable storage method according to one aspect of the present disclosure is a cable storage method for a cable storage system including a cable container having an axis around which a cable is wound and a transport cart, and includes a rotation step of running the transport cart to rotate the cable container so that the cable is wound around the axis, and a winding step of winding the cable around the axis of the cable container rotated in the rotation step.

[0085] According to the above cable storage method, in the rotating step, the transport vehicle is driven to rotate the cable container so that the cable is wound around the shaft. In addition, in the winding step, the cable is wound around the shaft of the cable container. This allows the cable to be wound around the axis of the cable container by, for example, traveling on a transport vehicle, thereby making it possible to store the cable easily.

[0086] <2> the above <1> The cable storage method according to the present invention may further include a first transport step of transporting the cable container in which the cable has been wound in the winding step by the transport vehicle.

[0087] The cable storage method further includes a first transport step of transporting the cable container around which the cable is wound by a transport vehicle. This allows the transport vehicle to be used for both winding the cable around the axis of the cable container and transporting the cable container, for example.

[0088] <3> the above <2> The cable storage method according to the present invention may be configured such that the winding step is performed at a quay, and in the first transport step, the cable container with the cable wound thereon in the winding step is transported from the quay to a stockyard by the transport cart.

[0089] The winding step is carried out at the quay. In the first transport step, the cable container with the wound cable is transported from the quay to the stockyard by a transport vehicle. This allows, for example, cable containers to be transported to a stockyard, making effective use of quay space.

[0090] <4> the above <3> The cable storage method according to the present invention may further include a second transport step of transporting the cable container transported to the stockyard in the first transport step to the quay by the transport vehicle.

[0091] The cable storage method further includes a second transport step of transporting the cable container transported to the stockyard to a quay by a transport vehicle, thereby enabling, for example, the cable container to be quickly transported to the quay.

[0092] <5> the above <4> The cable storage method according to the present invention may be configured to further include a first loading step of winding up the cable from the cable container transported to the quay in the second transport step and loading it onto a ship.

[0093] The cable storage method further includes a first loading step of winding the cable from the cable container transported to the quay and loading it onto a ship, whereby, for example, the cable stored in the cable container can be loaded onto a ship.

[0094] <6> the above <4> The cable storage method according to the present invention may further include a second loading step of loading the cable container transported to the quay in the second transport step onto a ship using the transport cart.

[0095] The cable storage method further includes a second loading step of loading the cable container transported to the quay onto a ship using a transport vehicle, thereby enabling, for example, the cable container with the cable wound thereon to be loaded onto a ship.

[0096] <7> the above <6> The cable storage method according to the above aspect may be configured such that, in the second loading step, the transport vehicle travels on a bridge spanning between the quay and the ship.

[0097] In the second loading step, the transport vehicle travels on a bridge spanning between the quay and the ship, which allows the cable container to be easily loaded by the transport vehicle even if there is a step or gap between the quay and the ship.

[0098] <8> the above <1> from <7> The cable storage method according to any one of the above aspects may employ a configuration characterized in that, in the rotating step, the transporting vehicle is self-propelled.

[0099] The transport vehicle is self-propelled, which allows, for example, the cable container to be rotated around the axis on which the cable is wound.

[0100] <9> the above <1> from <8> In the cable storage method according to any one of the above aspects, a configuration may be adopted in which the number of the transporting carriages is plural.

[0101] There are a plurality of transport vehicles, which allows, for example, a cable container to be rotated stably.

[0102] <10> the above <1> from <9> The cable storage method according to any one of the above aspects may adopt a configuration characterized by further comprising an entry step of entering the transport vehicle between two or more legs provided on the cable container.

[0103] The cable storage method further includes an approaching step of allowing the transport vehicle to approach between two or more legs provided on the cable container, thereby making it possible, for example, to easily support the cable container with the transport vehicle.

[0104] <11> the above <1> from <10> The cable storage method according to any one of the above aspects may employ a configuration characterized in that the cable wound around the shaft in the winding step is a cable that was installed on a ship.

[0105] The cable wound around the shaft in the winding step is the cable that was on board the ship. That is, in the winding step, the cable is wound from the ship to the cable container. This allows, for example, the cable that was on board the ship to be stored in the cable container.

[0106] <12> the above <1> from <11> The cable storage method according to any one of the above aspects may employ a configuration characterized in that the cable wound around the shaft in the winding step is suspended from above the cable container.

[0107] The cable wound around the shaft is suspended from above the cable container, which makes it easy to wind the cable even in a cable container with side walls, for example.

[0108] <13> the above <1> from <12> The cable storage method according to any one of the above aspects may employ a configuration characterized in that the cable wound around the shaft in the winding step is aligned with an arc-shaped member located above the cable container.

[0109] The cables are routed along an arc-shaped member located above the cable container, which, for example, can prevent the cables from buckling, allowing the cables to be wound and stored in good condition.

[0110] <14> the above <1> from <13> The cable storage method according to any one of the above aspects may employ a configuration characterized in that the cable wound around the shaft in the winding step extends in a straight line.

[0111] The cable extends in a straight line. This makes it possible to prevent the cable from buckling, even when the cable is long. Therefore, the cable can be wound and stored in a good condition.

[0112] <15> A cable storage system according to one aspect of the present disclosure is a cable storage system comprising a cable container having an axis around which a cable is wound, and a transport cart, wherein the transport cart travels to rotate the cable container so that the cable is wound around the axis, and the cable container is rotated by the transport cart, thereby winding the cable around the axis.

[0113] According to the cable storage system, the transport vehicle travels to rotate the cable container so that the cable is wound around the shaft. Also, the cable container is rotated by the transport vehicle, so that the cable is wound around the shaft. With the above-described configuration, for example, the cable can be wound around the axis of the cable container by the transport vehicle traveling, thereby making it possible to store the cable easily. [Explanation of symbols]

[0114] 1. Cable Storage System 10 Cable Container 11 axes 14 legs 20 Transport cart 30 ships 40 Arc-shaped member 60 bridge S1 Cable Storage Method S11 Rotation Step S12 Winding Step S13 First transport step S15 Entry step S16 Second transport step S18 First loading step S19 Second loading step C Cable Y Stockyard

Claims

1. A cable container having a shaft around which a submarine cable to be laid on the seabed is wound; A transport cart, a cable storage system for storing the submarine cable on land in the cable container with the submarine cable wound around the shaft, the cable storage system comprising: a rotating step of running the transport vehicle on land with the cable container placed on the transport vehicle so as to rotate the cable container so that the submarine cable is wound around the shaft; a winding step of winding the submarine cable around the axis of the cable container rotated in the rotating step; A cable storage method comprising:

2. a first transport step of transporting, by the transport vehicle, the cable container around which the submarine cable has been wound in the winding step; The cable storage method according to claim 1, further comprising:

3. The winding step is carried out at a quay, In the first transport step, the cable container around which the submarine cable has been wound in the winding step is transported from the quay to a stockyard by the transport vehicle.

3. The cable storage method according to claim 2.

4. a second transport step of transporting the cable container transported to the stockyard in the first transport step to the quay by the transport vehicle; 4. The cable storage method according to claim 3, further comprising:

5. a first loading step of winding the submarine cable from the cable container transported to the quay in the second transport step and loading the submarine cable onto a ship; The cable storage method according to claim 4, further comprising:

6. a second loading step of loading the cable container transported to the quay in the second transport step onto a ship using the transport vehicle; The cable storage method according to claim 4, further comprising:

7. In the second loading step, the transport vehicle travels on a bridge spanning between the quay and the ship.

7. The cable storage method according to claim 6.

8. In the rotating step, the transporting vehicle moves independently.

8. The cable storage method according to claim 1, wherein the cable is stored in a container.

9. The transport vehicle is a plurality of vehicles.

8. The cable storage method according to claim 1, wherein the cable is stored in a container.

10. an approaching step of allowing the transport vehicle to enter between two or more legs provided on the cable container; The cable storage method according to any one of claims 1 to 7, further comprising:

11. the submarine cable wound around the shaft in the winding step is a cable that has been installed on a ship.

8. The cable storage method according to claim 1, wherein the cable is stored in a container.

12. The submarine cable wound around the shaft in the winding step is suspended from above the cable container.

8. The cable storage method according to claim 1, wherein the cable is stored in a container.

13. the submarine cable wound around the shaft in the winding step is arranged along an arc-shaped member located above the cable container; 8. The cable storage method according to claim 1, wherein the cable is stored in a container.

14. the submarine cable wound around the shaft in the winding step extends linearly; 8. The cable storage method according to claim 1, wherein the cable is stored in a container.

15. A cable container having a shaft around which a submarine cable to be laid on the seabed is wound; A transport cart, a cable storage system for storing the submarine cable on land in the cable container with the submarine cable wound around the shaft, With the cable container placed on the transport vehicle, the transport vehicle travels on land to rotate the cable container so that the submarine cable is wound around the shaft; The cable container is rotated by the transport vehicle, whereby the submarine cable is wound around the shaft. A cable storage system comprising:

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