JP2010001145A - Container three-dimensional storage - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a container three-dimensional storage which is excellent in both of container carry-in/out efficiency and storage space efficiency. <P>SOLUTION: The container three-dimensional storage comprises a stacker crane 3 ascending/descending while placing a container 11 on a lifting table 9, and a truck 13 disposed on the lifting table 9 of the stacker crane 3 and moving between the lifting table 9 and each storing portion to transfer the container 11. The truck 13 is mounted with a lifting supporting device having a supporting beam 27 capable of supporting and lifting a floor beam portion of the container 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a container solid storage for storing containers such as marine containers.

Container storage efficiency is a required item for container storage and cargo handling operations in the container yard. The container storage efficiency here refers to space efficiency in container storage and work efficiency in container loading / unloading work.
As a container storage method in a container yard, generally, containers are stacked and placed. When containers are stacked, a large space is required in order to be limited in height, and it cannot be said that the space efficiency of the container storage efficiency is high.
In addition, in the case of stacking, for example, if the container stacked below is to be taken out first, it is necessary to move the container stacked above to another place and take out the container, and the work efficiency of container loading / unloading is reduced. There is a problem of being extremely bad.

  As a solution to such a problem, there is proposed a type in which a container building having a large number of shelves is constructed and containers are placed on the shelves instead of stacking containers. . Examples of such formats include the following.

A container three-dimensional storage warehouse section for storing containers, and a container loading / unloading apparatus for loading and unloading containers in the container three-dimensional storage warehouse section, and the container loading / unloading apparatus is disposed along a rack row of the container three-dimensional storage warehouse section A traveling and moving ceiling traveling type container hoisting club, a spreader main body supported by the container hoisting club via a hoisting rope, and a horizontal movement from the spreader main body into the storage rack shelf of the rack row. A container three-dimensional storage facility comprising a spreader with a self-propelled device capable of self-propelling in a direction and having a container coupling portion of the spreader with the self-propelled device so that it can be moved up and down (see Patent Document 1) ).
JP-A-9-150918

According to the three-dimensional storage facility for containers described in Patent Document 1, each container is stored one by one in each storage rack shelf, and therefore, when each container is taken out, it is stacked upward as in the case of stacking. It is not necessary to move the container to another location.
Therefore, it can be said that the working efficiency of the container storage efficiency is good.
However, the container three-dimensional storage facility described in Patent Document 1 has the following problems.

The container three-dimensional storage facility described in Patent Document 1 uses a self-propelled spreader with a self-propelled device as means for moving the container into a storage rack shelf that accommodates each container. In this spreader with a self-propelled device, the container coupling portion is coupled to corner metal fittings provided at the upper four corners of the container to hold the container and move laterally into the storage rack shelf.
However, in order to realize a mechanism for holding and horizontally moving the container fittings provided at the four corners of the upper surface of the container, the mechanism itself must be highly rigid and must be extremely large. This is because in a mechanism that supports and moves horizontally so as to suspend the upper surface of the container, the force point at which the load acts and the position of the wheel that supports and moves cannot be matched in the vertical direction. This is because it is necessary to increase the rigidity to support the heavy container.

In addition, because the load is concentrated at the four points at the four corners, the load acts intensively, so it must be constructed to withstand the intensively acting load. The rigidity must be increased, and therefore the spreader with a self-propelled device must be large.
And when the spreader with a self-propelled device becomes large, it is necessary to secure a space in each storage rack shelf where it can move in the storage rack shelf, so that a wasteful space is created in the storage rack shelf. In addition, if each container is stored in each storage rack shelf so that there is a useless space in each storage rank shelf, the entire container three-dimensional storage facility becomes an excessive waste space.
Thus, although the thing of patent document 1 has the work efficiency of container storage efficiency being good, there existed a problem that space efficiency was bad.

  The present invention has been made to solve such a problem, and an object thereof is to obtain a container three-dimensional hangar excellent in both work efficiency and space efficiency.

In order to solve the above-mentioned problems, the inventor examined that the conventional container moving method holds corner metal fittings at the upper four corners of the container as described in Patent Document 1.
In principle, a container has a structure that supports corner metal fittings. Therefore, conventionally, when a container is moved, the corner metal fittings are always supported or held.
Further, when placing the container, it is usual to raise the corner metal part one step higher and place this part on the placing surface, and lift the other parts.
Therefore, when the corner metal fitting on the lower surface of the container is held when the container is moved laterally, the corner metal fitting on the lower surface of the container cannot be placed at the placement position when placing the container. Therefore, in Patent Document 1, when the corner metal fitting on the upper surface of the container is held and moved laterally and placed, the corner metal fitting on the lower surface of the container is placed at the support position.
As described above, it has been a general idea that the container holds the corner metal fitting in both cases of movement and placement.

However, if the idea of holding the corner metal fittings on the upper surface of the container is used to move the container laterally, a wasteful space as described above is generated.
Therefore, the inventor breaks the conventional concept that the container is held by the corner metal fittings. Based on this idea, we have obtained knowledge that, based on this idea, the container can be moved laterally by supporting parts other than the corner metal fittings on the lower surface of the container, and can be transferred to the container placement part in the storage part.
In addition, if a structure that supports the bottom surface of the container from below is adopted instead of hanging the container, the force point of the load and the position of the wheel can be matched in the vertical direction, so that the acting moment can be reduced. It has also been found that, for example, the rigidity of the carriage supporting the container can be reduced, and therefore the carriage itself can be made compact and space efficiency can be improved.
The present invention has been made based on such knowledge, and specifically has the following configuration.

(1) A container hangar according to the present invention is a stacker crane that places a container on a lifting table and moves up and down, and is disposed on the lifting table of the stacker crane, between the lifting table and each storage unit. And a carriage for transferring the container. The carriage is equipped with an elevating support device having a support part capable of supporting the floor beam part of the container and elevating it.

(2) Further, in the above (1), the support portion of the lifting support device includes at least a pair of support beams that support the floor beam portion of the container at a predetermined interval in the width direction. It is characterized by this.

(3) In addition, in the above-described (1) or (2), each support beam has an elevating jack, and each elevating jack is configured to move up and down synchronously by position control by a position sensor. It is characterized by that.

(4) Moreover, in the thing in any one of said (1)-(3), the area which extended the width | variety of the driving | running | working wheel of a trolley | bogie in the axial direction of a trolley | bogie, and the area which the support part of a raising / lowering apparatus occupies are planes. It is characterized in that it is set so that there is an overlapping part visually.

  In the present invention, a stacker crane that moves up and down by placing the container on the lifting table, and is disposed on the lifting table of the stacker crane, and moves between the lifting table and each storage portion to move the container. Since the carriage is equipped with a lifting support device that can move up and down by supporting the floor beam of the container, the carriage can be made compact and the width of the rail installed in the storage section can be reduced. As a result, useless space in the storage unit can be eliminated, and space efficiency can be improved.

FIG. 1 is a perspective view showing a part of a container hangar according to an embodiment of the present invention. Moreover, FIG. 2 is explanatory drawing of the trolley | bogie which transfers a container in a container hangar, and the container mounting shelf of a container hangar, and has shown the state which the trolley moved to the container storage part mentioned later. FIG. 3 is a perspective view of the carriage, and FIG. 4 is an operation explanatory view of the carriage, showing a part (part surrounded by a line) of the internal structure. 5 is an enlarged view showing a part of FIG. 4 in an enlarged manner, and FIG. 6 is an enlarged view of a portion A surrounded by a circle in FIG.
Hereinafter, the container hangar according to the present embodiment will be described with reference to FIGS.

  As shown in FIGS. 1 and 2, the container hangar 1 according to the present embodiment has a multistage shelf type container storage 5 (hereinafter simply referred to as “storage 5”) on both sides of a stacker crane 3 that can be moved up and down and horizontally. The container 11 placed on the lifting table 9 is moved to the predetermined container storage unit 5 side by moving the crane body 7 horizontally and lifting the lifting table 9 on which the container 11 is placed. The container 11 can be transferred and stored in the container storage unit 5.

The container storage 5 and the lift table 9 are provided with rails 15 for moving the carriage 13 between them, and the container 11 is moved from the lift table 9 to the container storage 5 by moving the carriage 13 on the rail 15. Can be transferred to.
Positionable pins (not shown) for positioning the lifting table 9 accurately on the container storage unit 5 side are provided at the front, rear, left and right positions of the lifting table 9, and the positioning pins are provided at the bottom of the container storage unit 5. The lift table 9 can be positioned at a predetermined position by engaging with the upper surface or the like.

As shown in FIGS. 3 and 4, the carriage 13 is composed of a rectangular frame body, and a plurality of wheels 21 driven by a drive motor 20 are attached to the frame portions 19 on both sides in the front-rear direction.
As shown in FIGS. 2 and 5, a plurality of lifting jacks 23 are installed on both side frame portions 19 of the carriage 13, and support beams 27 for supporting the container are provided on each cylinder rod 25 of the lifting jack 23. It has been.
FIG. 7 is an explanatory diagram for explaining the positional relationship between the container 11, the wheel 21, and the support beam 27. FIG. 7 (a) shows the present embodiment, and the suspension corresponding to Patent Document 1 is compared with this embodiment. The arrangement in the case of the method is shown in FIG.

The support beam 27 is provided at a position almost directly above an axis connecting the center of each wheel 21 in the front-rear direction (Y-axis direction) (see FIG. 7A). With this arrangement, a large moment does not act when the container 11 is supported on the support beam 27, and the rigidity of the frame part 19 can be reduced. Therefore, the frame part 19 is manufactured in a compact manner. be able to.
As for the positional relationship between the support beam 27 and the wheel 21, it is most preferable that the support beam 27 is arranged almost directly above the axis line connecting the center in the width direction (X-axis direction) of each wheel 21 in the front-rear direction.
However, if there is a portion where the area occupied by the support beam 27 and the area occupied by the width of each wheel 21 in the front-rear direction overlap each other in plan view, the acting moment is reduced and the carriage 13 is reduced. It is possible to obtain the effect of making the camera compact.

  As shown in FIGS. 3 and 4, the support beam 27 is provided so as to be accommodated in a groove 28 formed in the frame portion 19. In this example, the support beam 27 installed in the groove 28 of each frame portion 19 is divided into six in the longitudinal direction, and each support beam 27 is moved up and down by two lifting jacks 23. In the state in which the support beam 27 is raised, the upper surface of the support beam 27 protrudes above the upper surface of the frame portion 19 as shown in FIG.

The height position of each support beam 27 is detected by a position sensor (not shown), and the lift jacks 23 are controlled to move up and down based on the position information. The lift beams are controlled to have the same lift distance. Lifted up and down. In the present embodiment, the elevating support device is configured by the control beam 27, the elevating jack 23, the position sensor, and the control device that controls the elevating operation of the elevating jack 23.
The support beam 27 can support the inside of the lower corner metal fitting of the container, that is, the floor beam of the container (see FIG. 7A). In this manner, the support beam 27 supports the bottom floor beam of the container over almost the entire length thereof, so that the load is dispersed and the carriage is compared with the case of supporting the corner metal fitting (see FIG. 7B). It can be made compact.

Further, by adopting a structure in which the floor beam portion of the container 11 is supported from below, useless space is not required in the storage unit 5 unlike the structure in which the container is suspended from above as shown in Patent Document 1. That is, in the present embodiment, the width of the frame portion 19 of the carriage 11 can be made smaller than the width of the container 11 as shown in FIG. As shown in b), a rail is arranged outside the width of the container 11, and the spreader with a self-propelled device protrudes further outside than the rail, and the storage unit 5 is useless in the width direction. Space must be reserved.
In this way, by adopting a structure in which the floor beam portion of the container 11 is supported from below, there is no useless space in the storage unit 5, and the space efficiency of the entire container storage can be improved.

  As described above, in the present embodiment, the bottom floor beam of the container 11 is supported at a position almost directly above the wheel 21 and over almost the entire length of the container 11, thereby making the carriage 13 compact. In addition, the width of the rail installed in the storage unit 5 can be reduced. Thereby, useless space in the storage unit 5 can be eliminated, and space efficiency can be improved.

In the above, although the structure of the trolley | bogie 11 was mainly demonstrated, the structure of the container mounting shelf 29 is demonstrated below.
As shown in FIG. 2, the container mounting shelf 29 in the container storage unit 5 rotates a twist lock metal fitting 31 that can engage with and lock the corner metal fitting of the container 11, and the twist lock metal fitting 31. A rotation means 33 is installed. In this example, the twist lock fitting 31 is a rear side portion of the container placement shelf 29 (a side portion on which the short side on the back side of the container 11 is placed when the container 11 is placed) It is provided at both ends of the side part far from the moving path.
The corner metal fitting of the container 11 has an engagement hole having a width narrower than the square width at the lower portion of the metal fitting having a square cross section. Since the width of the engagement hole is narrower than the width of the square shape, the engagement hole has a shape with edges on the left and right sides. When the engagement hole is viewed in plan, it has a rectangular or elliptical shape having a major axis and a minor axis.
On the other hand, the twist lock fitting 31 has a shape similar to the engagement hole of the corner fitting in a plan view, and when the twist lock fitting 31 is in the same direction as the engagement hole, the twist lock fitting 31 is inserted into the engagement hole. It is possible. Then, when the twist lock fitting 31 is rotated while being inserted into the engagement hole, the twist lock fitting 31 is locked to the edge of the engagement hole and the container 11 is locked to the container placement shelf 29.

  As shown in FIG. 6, the rotation means 33 includes a rotation shaft 35 formed integrally with the twist lock fitting 31, a holding portion 37 that rotatably holds the rotation shaft 35, and a rotation shaft 35. A lever 39 that is fixed and extends toward the rail 15 on which the carriage 13 travels, a roller 41 that is provided at the tip of the lever 39 and that can come into contact with the side surface of the carriage 13 that enters and exits each storage section 5, and a rotating shaft 35 and a torsion spring 43 provided on 35.

8-10 is explanatory drawing of the storage operation | movement of the container 11 in the container hangar 1 based on this Embodiment comprised as mentioned above, The twist lock metal fitting 31, the rotation means 33, and the trolley | bogie 13 were planarly viewed. The state is schematically shown. Since FIG. 8 to FIG. 10 are schematic diagrams, the size ratio of the shape of the carriage 13 and the twist lock fitting 31 is different from the actual size, and the twist lock fitting 31 side is greatly drawn with respect to the carriage 13.
Hereinafter, the container storing operation in the container storage 1 will be described with reference to FIGS.

The container 11 is placed on the carriage 13 on the lifting table 9 via the support beam 27 of the lifting jack 23, the crane body 7 is moved to a row where a predetermined container storage unit 5 is located, and the lifting table 9 is moved in that row. It is raised and lowered to the target storage unit 5 position.
In order to accurately position the elevating table 9 in the vertical direction with respect to the predetermined storage unit 5, a positioning pin is projected from the side of the table and engaged with the bottom of the storage unit 5. FIG. 8 shows a state in which the carriage 13 on the lifting table 9 is disposed at a predetermined storage portion 5 position.

In this state, the lifting jack 23 is raised, the container 11 is supported by the support beam 27, and the carriage 13 is caused to enter the storage unit 5 by driving the drive motor.
FIG. 9 shows a state in which the carriage 13 moves in the direction of the arrow and enters the storage unit 5.
When the carriage 13 enters the storage unit 5, the roller 41 comes into contact with the side surface of the carriage 13, and the lever 39 is rotated as the carriage 13 moves, and accordingly, the twist lock fitting 31 is rotated in the unlocking direction. At this time, the torsion spring 43 is twisted to resist the rotation of the lever 39. However, since the lever 39 is in contact with the carriage 13, the lever 39 rotates against the urging force of the spring.

The state shown in FIG. 9 shows a state where the carriage 13 has finished moving to the position where the container 11 is placed. In this state, the lever 39 rotates the twist lock fitting 31 in the locking direction by the torsion spring 43. Is being energized.
In the state shown in FIG. 9, the lifting jack 23 of the carriage 13 is driven to lower the container 11, and the corner metal fittings at the four corners of the lower surface are placed on the placement portion in the storage portion 5. At this time, since the twist lock metal fitting 31 is in the unlocked state, the twist lock metal fitting 31 is inserted into the engagement hole of the corner metal fitting of the container 11.

  When the container 11 is placed, the carriage 13 is moved to the lifting table 9 side in order to retract from the storage unit 5. When the carriage 13 moves in the withdrawal direction, the roller 41 rotates in the same position in a state where the roller 41 is in contact with the carriage 13, and then, when the carriage 13 leaves and the roller 41 is removed from the carriage 13, The rotating shaft 35 rotates in the locking direction by the urging force of the torsion spring 43, and the twist lock fitting 31 locks the corner fitting (see FIG. 10).

The operation when the container 11 in the storage unit 5 is carried out by the carriage 13 is that the elevator jack 23 is retracted and the container 11 is lowered from the carriage 13 and the elevator jack 23 is extended and the container 11 is mounted on the carriage 13. Although there is a difference, the other operations are the same, and the operation is as follows.
When the container 11 locked by the twist lock fitting 31 is placed on the container placement shelf 29 of the storage unit 5, when the cart 13 enters the storage unit 5, the roller 41 contacts the side surface of the cart 13, As the carriage 13 moves, the lever 39 is rotated, and accordingly, the twist lock fitting 31 is rotated in the unlocking direction.

  When the container 11 is mounted on the carriage 13, the carriage 13 is moved to the lifting table 9 side in order to withdraw from the storage unit 5. When the carriage 13 moves in the withdrawal direction and the roller 41 is removed from the carriage 13, the rotating shaft 35 rotates in the locking direction by the urging force of the torsion spring 43.

As described above, in the present embodiment, the floor beam portion of the container 11 is supported by the support beam 27 provided on the carriage 13 and the container 11 is carried into or out of the storage portion 5. It can be made compact, and a useless space in the storage unit 5 can be made as small as possible. Thereby, space efficiency can be improved.
Further, since the twist lock fitting 31 is locked and unlocked as the carriage 13 enters or leaves the storage unit 5, a device having a driving force for rotating the twist lock fitting 31 is separately provided. There is no need. Therefore, prevention of displacement, tilting, and overturning of the container 11 in the container hangar 1 can be realized with reduced initial equipment cost and maintenance cost.

In the above description, the example in which the twist lock metal fitting 31 is provided on the rear side portion of the container placement shelf 29 is shown. However, as the position where the twist lock metal fitting 31 is provided, the front side portion or the side of the container placement shelf 29 is provided. It does not exclude sides.
However, it is considered that the container tilts due to strong winds and earthquakes, with the long side of the container 11 serving as a fulcrum. However, if twist lock fittings 31 are provided on both ends of the rear side, one end of the long side of the container 11 is Since both sides can be connected to the container placement shelf 29, the container 11 can be reliably prevented from being tilted or toppled by a strong wind or an earthquake.

It is explanatory drawing of the container hangar which concerns on one embodiment of this invention. It is explanatory drawing of the trolley | bogie used for the container hangar which concerns on one embodiment of this invention, and a container mounting shelf. It is explanatory drawing of the trolley | bogie which concerns on one embodiment of this invention (jack fall state). It is explanatory drawing of the trolley | bogie which concerns on one embodiment of this invention (jack raise state). It is an enlarged view which expands and shows a part of FIG. It is an enlarged view which expands and shows a part of FIG. It is explanatory drawing explaining the effect of embodiment of this invention. It is explanatory drawing of the container transfer operation | movement in the container hangar which concerns on one embodiment of this invention (the 1). It is explanatory drawing of the container transfer operation | movement in the container hangar which concerns on one embodiment of this invention (the 2). It is explanatory drawing of the container transfer operation | movement in the container hangar which concerns on one embodiment of this invention (the 3).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Container hangar 3 Stacker crane 5 Container storage part 7 Crane main body 9 Lifting table 11 Container 13 Cart 15 Rail 19 Frame part 20 Drive motor 21 Wheel 23 Lifting jack 25 Cylinder rod 27 Support beam 28 Groove 29 Container mounting shelf 31 Twist lock metal fittings 33 Rotating means 35 Rotating shaft 37 Holding part 39 Lever 41 Roller 43 Torsion spring

Claims (4)

A stacker crane that places a container on a lifting table and moves up and down, and a carriage that is placed on the lifting table of the stacker crane and moves between the lifting table and each storage unit to transfer the container And the cart is mounted with a lifting support device having a support portion that can move up and down while supporting the floor beam portion of the container. 2. The container three-dimensional storage according to claim 1, wherein the support portion of the elevating support device includes at least a pair of support beams that support the floor beam portion of the container at a predetermined interval in the width direction thereof. Each container beam has a raising / lowering jack, respectively, These each raising / lowering jack is comprised so that it may raise / lower synchronously by the position control by a position sensor, The container solid storage of Claim 1 or 2 characterized by the above-mentioned. The area where the width of the traveling wheel of the carriage extends in the axial direction of the carriage and the area occupied by the support portion of the lifting device are set so that there is an overlapping portion in plan view. The container solid storage according to any one of the above.

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