JP2007253976A - Container with wind pressure reducing member and navigating method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container for transportation reduced in wind pressure resistance, and a navigating method. <P>SOLUTION: A wind pressure resistance reducing member which can be developed is provided. This member is formed with a facing member supported so as to be rotatable on one end side of at least one face of a hexahedron container for transportation and can be freely stretched and contracted. By rotating and stretching the facing member to develop it, an inclined face with an effect for reducing the wind pressure resistance is formed to at least one face other than the bottom face of the container for transportation in a condition that the containers for transportation are stacked. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a shipping container and a method for operating a vessel that operates with the container mounted on a deck, and more particularly, to a shipping container and a vessel that can reduce wind pressure resistance caused by the shipping container when the vessel is operated. It relates to the operation method.

  Container ships operate with a large number of transport containers such as dry containers, open top containers, refrigerated containers, platform containers, tank containers, and flat rack containers used for their respective purposes. These shipping containers have standard container dimensions, and 20-foot containers, 40-foot containers, and the like are frequently used.

  As shown in FIGS. 17 and 18, this shipping container is usually mounted on the hold and upper deck of the ship 1. The shipping container 10X loaded above the upper deck is lashed by the container lashing hardware on the upper deck or the container lashing hardware of the lower shipping container 10X, and is above the upper deck 4. Stacked about 1 to 7 levels. The shipping container 10X stacked above the upper deck is normally uncovered and stacked as it is.

  This transport container is usually formed of a hexahedron, and its surface is often surrounded by a flat surface, and in particular, no contrivance has been made to reduce wind pressure resistance (see, for example, Patent Document 1). Therefore, when the wind W hits the plane of the shipping container, as shown in FIG. 19, a vortex W is generated above, in front of, or behind the shipping container 10X, and the wind pressure resistance due to the wind W increases. The speed and direction of the wind W that strikes this shipping container is a combination of the natural wind W and the ship speed. Therefore, in the operational state of a ship with a ship speed, there are many winds from the front, and the wind pressure resistance of the shipping container. As for the force, the component toward the rear of the ship increases.

Therefore, as shown in FIG. 17, there are few problems if the shipping containers are densely mounted on the deck and the total wind resistance of each shipping container is small, but as shown in FIG. If the containers are scattered and mounted on the deck and the total wind resistance of each shipping container increases, it may become a force that affects the propulsion resistance of the ship. Particularly in a container-only ship, the ship speed is high and the wind pressure resistance is proportional to the square of the wind speed, so the wind pressure resistance of the container for transportation becomes a problem.
JP 2002-264993 A

  An object of the present invention is to provide a shipping container and a ship operating method that can reduce wind pressure resistance.

  In order to achieve the above object, a shipping container according to the present invention includes a deployable wind pressure reducing member. This deployable wind pressure resistance reducing member is accommodated in the inside of the shipping container or placed on the surface of the shipping container when not deployed, and the shipping container is loaded on a ship or a transport vehicle. A member that exhibits a wind pressure resistance reducing effect when unfolded and unfolded.

  Further, in the above transport container, the wind pressure resistance reducing member is formed by a planar member that is rotatably supported on at least one surface of a hexahedral transport container, and the planar member is rotated for rotation. When configured so that an inclined surface having a wind pressure resistance reducing effect can be formed on at least one surface other than the bottom surface of the container for transportation in a state where the container is stacked, transportation having a relatively simple structure and a wind pressure reducing member is provided. Container can be formed.

  In the transport container, the wind pressure resistance reducing member may be configured to have a structure that can be extended by a slide method or a structure that can be folded by a hinge method, or the wind pressure resistance reduction member is supported by the frame member and the frame member. When configured with a film-like member, the wind pressure reducing member can be configured with a relatively simple structure.

  Further, in the above transport container, when the wind pressure resistance reducing member is configured to be detachable from the transport container, the wind pressure resistance reducing member is used in the case of land transport or air transport that does not have a problem with wind pressure resistance. It can be removed and transported in that light state. In addition, even in the case of marine transportation carried on a ship, the wind pressure resistance reducing member is installed only when the wind pressure resistance becomes a problem because it is mounted on the deck, and the wind pressure resistance reducing effect Can be played.

  In the case of a shipping container mounted on a ship, this shipping container is mounted on the deck and often receives wind pressure, has a great effect of reducing wind pressure resistance, and is a space for deploying a wind pressure resistance reducing member. Can also be secured.

  And the ship navigation method of the present invention for achieving the above object is a ship navigation method in which a transport container is mounted on a deck, and the wind pressure for reducing the wind pressure resistance of the transport container on the deck. It is a method of transporting the transport container by disposing a resistance reducing member on at least one of the top, front or rear of the transport container.

  Alternatively, a method for operating a ship in which the transport container is mounted on a deck, wherein the wind pressure resistance reducing member of the transport container on the deck is deployed on at least one of the upper side, the front side, or the rear side of the transport container. And a method of transporting the transport container.

  In addition, some container ships may operate with the shipping containers scattered on the upper deck. At this time, depending on the arrangement of the shipping containers on the upper deck, Since the sum of wind pressure resistance received is not the same before and after the ship, there is a possibility that a relatively large yawing moment may occur. Therefore, as a method of operating a ship equipped with a transport container on the deck, The method of transporting the transport container by arranging a wind pressure resistance reducing member for reducing the wind pressure resistance of the transport container in the lateral direction of the transport container is also effective because it can provide a course holding effect. .

  In addition, the front of these shipping containers is the front with respect to the ship and refers to the bow direction, and the rear of the shipping container is the rear with respect to the ship and refers to the stern direction. Further, the lateral direction of the shipping container is a lateral direction with respect to the ship, and refers to a port direction or a starboard direction.

  According to the shipping container and the ship operating method of the present invention, the wind pressure resistance can be reduced by deploying the wind pressure resistance reducing member of the shipping container, and if the wind pressure resistance is not a problem, the wind pressure resistance reducing member. Can be stored so that it will not get in the way when mounted or tied up.

  Hereinafter, embodiments of a shipping container and an operational state of a ship according to the present invention will be described with reference to the drawings.

  The transport container 10 is configured in the same manner as a normal transport container. However, in the present invention, as shown in FIGS. 1 and 2, an expandable wind pressure resistance reducing member 20 is further configured.

  In the first embodiment, as shown in FIG. 1, the wind pressure resistance reducing member 20 of the shipping container 1 is telescopically supported rotatably at one end side on the front side of the upper surface of the hexahedron shipping container 10. The planar member 21 is used. The planar member 21 rotates around the rotation shaft 21 a so that it can be disposed in front of the shipping container 20. Thereby, generation | occurrence | production of the vortex | eddy_current which can be produced ahead of the container for transport is prevented, and wind pressure resistance is reduced.

  In the second embodiment, as shown in FIG. 2, the wind pressure resistance reducing member 20 of the shipping container 1 is telescopically supported rotatably on one end side on the front side of the upper surface of the hexahedral transporting container 10. And a telescopic sheet member 21 that is rotatably supported at one end on the rear side of the upper surface of the hexahedral transport container 10. The planar members 21 and 21 rotate around the rotation shaft 21 a so that they can be disposed in front and rear of the transport container 20. Thereby, generation | occurrence | production of the vortex | eddy_current which can be produced in the front and back of a transport container is prevented, and wind pressure resistance is reduced. The slope of the slope that can be formed by the planar member 21 is larger than that of the first embodiment, and the effect of reducing the wind pressure resistance on this one slope is somewhat reduced, but the wind pressure resistance can be reduced before and after. Become. In general, since the length of the transport container 10 in the longitudinal direction is relatively long, the effect of reducing wind pressure resistance can be expected.

  In the third embodiment, as shown in FIG. 3, the planar member 21 of the wind pressure resistance reducing member 20 of the first embodiment is slid between the first planar plate 21b and the second planar plate 21c. It is formed to expand and contract. Thereby, the length of the slope which can be formed with the planar member 21 is lengthened, and the corner portion is eliminated between this slope and another transport container, and the effect of reducing wind pressure resistance is further increased.

  In the fourth embodiment, as shown in FIG. 4, the wind pressure resistance reducing member 20 of the shipping container 1 is telescopically supported rotatably at one end on the upper side of the front surface of the hexahedral transporting container 10. The planar member 21 is used. The planar member 21 rotates around the rotating shaft 21a so that it can be disposed in front of the transport container 20, and the first planar plate 21b, the second planar plate 21c, and the third planar plate. 21d is formed to slide and expand and contract.

  In the fifth embodiment, as shown in FIG. 5, the wind pressure resistance reducing member 20 of the shipping container 1 has a first planar plate 21b and a second planar plate 21c as hinges 21e instead of a slide structure. The second planar plate 21c and the third planar plate 21d are connected by a hinge 21f, respectively, and are formed as a folding structure that can rotate between them.

  In the sixth embodiment, as shown in FIG. 6, an expandable and contractible planar member 21 is provided on the upper surface of the shipping container 10 so as to be folded at a hinge 21 g in the middle in the front-rear direction. With such a configuration, when the transport container 10 is mounted on the ship 1 and is deployed in a mountain shape when positioned at the uppermost stage, eddy currents generated above the transport container 10 can be suppressed.

  In the seventh embodiment, as shown in FIG. 7, the wind pressure resistance reducing member 20 of the shipping container 10 is formed so that the planar member 21 can be developed with a skeleton member 21 h, and a cloth-like or sheet-like film shape is used. The member 21i may be configured to be supported by this framework. In this case, the membranous member 21i may be configured to be stored and deployed in a state of being fixed to the skeleton member 21h, and the membranous member 21i may be detached from the skeleton member 21h during storage and attached during deployment. May be.

  In the eighth embodiment, as shown in FIG. 8, a part or all of the frame member 21 j of the planar member 21 of the seventh embodiment has a sliding structure, and a surface 11 that is unfolded during storage. It is accommodated in the right-angle surfaces 12 and 12, and is configured to be expanded by a slide during expansion.

  In the ninth embodiment, as shown in FIG. 9, the frame member 21k is formed in a flat plate shape, and is stored in the surfaces 12 and 12 perpendicular to the surface 11 to be unfolded by the folding structure. Sometimes it is configured to deploy by rotation. In the case of the plate-shaped frame member 21k, the lower space of the membrane member 21i can be closed by the frame member 21k, so that the generation of eddy currents in the lower space can also be prevented. In addition, since the container 10 for a transport is normally arrange | positioned in a horizontal direction, the clearance gap between the adjacent planar members 21 is small, and it is thought that generation | occurrence | production of this eddy current is few. Although not shown, when the frame member 21k is arranged before and after the shipping container 10, the wind pressure resistance reducing members 20 can be arranged both in front and rear of the shipping container 10.

  In the tenth embodiment, as shown in FIG. 10, the screen 21m is drawn from the screen storage cylinder 21n and is projected to the screen support member 21p. The screen 21m is wound around the screen storage cylinder 21n when not in use, and is pulled out when necessary so that the screen 21m can be fixed to a predetermined place with a hook 21q or the like. It is preferable that the screen 21m and the screen storage cylinder 21n have a mechanism for rewinding with a spring like a projection screen, and have a lock mechanism so as to keep the length when pulled out to an appropriate length. Further, the screen support member 21p is constituted by a telescopic type or a folding type, and when deployed, the screen support member 21p is arranged in an X shape, a V shape, or in parallel, and the screen 21m is supported on the lower side or the upper and lower sides to reinforce the strength. . In addition, the screen support member 21p does not necessarily include the rod 21o. However, in the case of providing the screen support member 21p, the rod 21o can be deployed to the screen 21m so that the screen 21m and the screen support member 21p can be deployed only by pulling out the rod 21o. And the screen support member 21p may be joined by a joint or the like.

  Further, the screen storage cylinder 21n and the screen support member 21p may be provided in the container 10, but they can be detachable, and the screen storage cylinder 21n and the screen support member 21p can be integrated as a single or separate portable type so that they can be used as needed. 10 may be configured to be mounted.

  In these first to tenth embodiments, the deployable wind pressure resistance reducing member 20 is accommodated inside the shipping container 10 or arranged on the surface of the shipping container 10 when not deployed. Thus, the transport container 10 does not interfere with the anchoring of the shipping container 10 to a ship or a transport vehicle. The planar member 21 is usually composed of a single hinge around the rotation shaft 21a. However, as shown in FIG. 11, the planar member 21 is configured to be rotatable by both hinges 21a and 21a. You may increase the range which can form a slope.

  These planar members 21 are easy to work with a planar shape and have a relatively simple structure, but as shown in FIG. 12 and FIG. 13, are close to a curved surface having many corners in side view. That is, if it forms so that it may become a polygonal line shape or a curved surface shape, the flow of a wind will become smoother and the wind pressure resistance reduction effect will become large.

  Further, in these transport containers 10, if the wind pressure resistance reducing member 20 is configured to be detachable (or detachable) from the transport container 10, in the case of land transport or air transport that does not cause wind pressure resistance, The wind pressure resistance reducing member 20 is removed, and the vehicle can be transported with a light weight. Further, even in the case of maritime transportation carried on a ship, the wind pressure resistance reducing member 20 is attached only when the wind pressure resistance becomes a problem because it is mounted on the deck, and the wind pressure resistance is reduced. An effect can be produced.

  Next, the ship operating method will be described. This ship operation method is a ship operation method in which the transport container 10 is mounted on the deck, and the wind pressure for reducing the wind pressure resistance of the transport container 10 on the deck 2 as shown in FIGS. In this method, the resistance reducing member 20 (thick line portion and hatched portion) is disposed at least one of the upper side, the front side, and the rear side of the shipping container 10 to transport the shipping container 10. In FIG. 15, the horizontal direction is illustrated in the same manner, but actually, since the transport containers 10 are loaded unevenly not only in the front-rear direction but also in the horizontal direction, As in 15, it is not uniform in the horizontal direction.

  The wind pressure resistance reducing member 20 can be easily performed by using the shipping container 10 provided with the deployable wind pressure resistance reducing member 20 as described above, but is not necessarily provided in the shipping container 10. It is not necessary to limit to the wind pressure resistance reducing member 20, and it may be a separate body from the shipping container 10.

  In the state where the shipping container is stacked, as shown in FIG. 16, in the case of the shipping container 10A mounted on the deck 2, the planar member 21A is rotated to the front end side of the planar member 21A. Is fixed to the deck 2 of the ship with a fixing bracket, and the wind pressure resistance reducing member 20A is disposed forward. Further, in the case of a transport container 10C loaded on another transport container 10B, the front side end of the upper surface of the transport container 10A diagonally forward and lower disposed by rotating the planar member 21C on the lower front side The wind pressure resistance reducing member 20 </ b> A is disposed on the front side. Thereby, the slope by planar member 21A, 21C can be formed with respect to the front surface of this container 10A, 10C for transport. Since this slope can suppress the generation of vortex on the front surface of the transport container 20 with respect to the wind W from the front, the wind pressure resistance can be reduced.

  In FIG. 16, the front of the shipping containers 10 </ b> A and 10 </ b> B has been described. However, the vortex is generated in the rear and wind pressure resistance is generated. When the resistance reducing member 20 is disposed, it is possible to suppress the generation of wind eddy currents on the rear surface of the transport container 10 due to the inclined surface, so that wind pressure resistance can be reduced.

  In the above description, the wind from the front has been described. However, with respect to the crosswind, the wind pressure resistance reducing member that reduces the wind pressure resistance of the shipping container on the deck is arranged in the horizontal direction of the shipping container. Wind pressure resistance in the direction can be reduced, yawing (head sway) moment and sway (lateral direction) force due to wind can be reduced, and a course holding effect can be achieved.

It is a perspective view which shows the container for transport of 1st Embodiment. It is a perspective view which shows the container for transport of 2nd Embodiment. It is a perspective view which shows the container for transport of 3rd Embodiment. It is a perspective view which shows the container for transport of 4th Embodiment. It is a perspective view which shows the container for transport of 5th Embodiment. It is a perspective view which shows the container for transport of 6th Embodiment. It is a perspective view which shows the container for transport of 7th Embodiment. It is a perspective view which shows the container for transport of 8th Embodiment. It is a perspective view which shows the container for transport of 9th Embodiment. It is a perspective view which shows the container for transport of 10th Embodiment. It is a perspective view which shows both hinge structures typically. It is a perspective view which shows a polygonal line-shaped surface member typically. It is a perspective view which shows typically a curved surface member. It is side sectional drawing which shows typically the operation state of the ship carrying the container for transport which is embodiment of this invention. FIG. 15 is a plan view of FIG. 14. It is a perspective view which shows typically the state of the flow around the container for transport in embodiment of this invention. It is a sectional side view which shows typically the operation state of the ship carrying the container for transport in a prior art. It is a top view of FIG. It is a perspective view which shows typically the state of the flow around the container for transport in a prior art. It is a sectional side view which shows typically the other operation state of the ship carrying the container for transport in a prior art.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Ship 2 Upper deck 10,10A, 10B, 10C Transport container 10X Conventional transport container
20 Wind pressure resistance reducing member 21, 21A, 21C Planar member 21a Rotating shaft (hinge)
21b First planar member 21c Second planar member 21d Third planar member 21h, 21j, 21k Skeleton member 21i Membrane member 21m Screen 21n Screen storage cylinder 21p Screen support member

Claims (6)

  A container for transportation, comprising a deployable wind pressure resistance reducing member.   The wind pressure resistance reducing member is formed of a planar member rotatably supported on at least one surface of a hexahedral transport container, and the transport in a state where the transport container is stacked by rotating the planar member. The transportation container according to claim 1, wherein a slope having an effect of reducing wind pressure resistance can be formed on at least one surface other than the bottom surface of the container.   The shipping container according to claim 1 or 2, wherein the wind pressure resistance reducing member is configured to be a structure that can be extended by a slide system or a structure that can be folded by a hinge system.   The transportation container according to any one of claims 1 to 3, wherein the wind pressure resistance reducing member is configured to be detachable from the transportation container.   A method for operating a ship having a shipping container mounted on a deck, wherein a wind pressure resistance reducing member for reducing the wind pressure resistance of the shipping container on the deck is disposed on at least one of the upper side, the front side, or the rear side of the shipping container. And a method for operating a ship, wherein the container for transportation is transported. A method for operating a ship having a transport container mounted on a deck, wherein a wind pressure resistance reducing member for reducing the wind pressure resistance of the transport container on the deck is arranged in a lateral direction of the transport container, A method for operating a ship, characterized by transporting containers.

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