JP2576398Y2 - Bridge crane - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bridge crane installed in a container yard for storing containers in a stacked state.

[0002]

In general, a bridge crane of this kind, as shown in FIG. 1
As shown in FIG. 1 , the trolley 10 is installed so as to be able to travel on the container yard 3, and the trolley 10 is supported by the girder 6 so as to be able to traverse, and the spreader 11 is suspended from the trolley 10 so as to be able to move up and down.

In Japan, in order to make maximum use of the storage space in the container yard 3, the containers 2 are stored in a multi-tiered state according to a planned order of arrival and departure. Is common.

[0004] By the way, high-level information management is carried out in the order of shipment. However, if the order of shipment or the order of arrival is changed or deviated for some reason, the containers stacked in multiple stages are stacked. 2 ... may need to be reloaded.

For example, in the initial plan, the first container 2
a and the second container 2b are to be shipped in this order, so that the first container 2a is stored in a state of being loaded on the second container 2b (see FIG. 11A ), Container 2b is the upper first container 2
If it is necessary to ship the container before the item a, it is necessary to reload the first container 2a.

In such a case, in the conventional bridge type crane, the first container 2a is transferred to an appropriate empty space (hereinafter referred to as a "temporary storage space") 3c in the container yard 3 and temporarily stored in the space 3c (see FIG. 11 (A), (B))
The second container 2b is suspended and transferred to the shipping location 3b where the truck 14 and the like are on standby (see FIGS. 3C and 3D). After the shipping operation is completed, the first container 2a is moved to the temporary storage location 3c. To return to the original storage location 3a (see FIG. 3D).

[0007]

However, since it is generally difficult to secure the temporary storage location 3c near the storage location 3a (within the support span of the girder 6 as illustrated in FIG. 11 ), it is difficult to secure the temporary storage location 3c. The transfer of the first container 2a between 3c requires the traveling of the crane in addition to the traverse of the trolley 10 and the elevation of the spreader 11. Therefore, the cycle time of the cargo handling work including the reloading work of the first container 2a is lengthened, and the cargo handling efficiency is significantly reduced. Such a problem becomes more prominent as the temporary storage location 3c moves away from the storage location 3a. Moreover, it is necessary to always keep at least one temporary storage place 3c in the container yard 3, and the effective storage space in the container yard 3 is reduced.

In view of the above, the present invention eliminates the need to secure a temporary storage location in the container yard, and can efficiently reload containers even if the order of arrival or departure is changed or confused. Accordingly, it is an object of the present invention to provide a bridge-type crane that can significantly improve the efficiency of cargo handling operations including reloading operations.

[0009]

Means for Solving the Problems The present invention bridge crane of, in order to achieve the above object, in particular, the handling device provided to be transverse to the gar da, retractable container spreader lifting area A temporary table is provided.

[0010]

[Function] If it is necessary to ship a lower container (hereinafter referred to as a “shipping container”) prior to an upper container (hereinafter referred to as a “non-shipping container”) due to a change in plan or inconsistency, first, a non-shipping container is required. Is lifted by a spreader, and this non-shipping container is temporarily placed on a container temporary storage table brought into the elevating area of the spreader. Therefore, it is not necessary to secure a temporary storage place in the container yard, and the container yard can be used as much as possible as a storage space.

Thereafter, the container temporary storage table is moved out of the spreader elevating area, and the shipping container is transferred to the shipping place by elevating the spreader and traversing the cargo handling device.

When the shipping operation of the shipping container is completed, the loading / unloading device is returned to the original storage location and the container temporary storage table is brought into the elevating area of the spreader. Hand over to Then, after the container temporary placing table is moved out of the elevating area, the non-container is returned and stored in the storage location by the spreader.

[0013] In this way, since so as to be temporarily placed the non-shipping container to container provisional table provided in the rather cargo handling equipment such a provisional idea of where to put the container yard, need to be running the crane in the front and rear of the ship work Therefore, the cycle time of cargo handling work including reloading work can be greatly reduced.

[0014]

EXAMPLES The following specifically described based on the structure of the present invention in actual <br/>施例are shown in Figures 1-10.

As shown in FIG. 1, a bridge-type crane 1 of this embodiment is a rail-type bridge-type crane installed in a container yard 3 where containers 2... Legs 5, 5 that can run on the rails 4, 4, and a girder 6 supported between the legs 5, 5.
When, a cargo apparatus 7 provided to be transverse to the girder 6, load
First and second container temporary storage tables 8 provided on the role device 7 ,
9 is provided.

The loading / unloading device 7 includes a trolley 10 traversing the girder 6 and a spreader 11 suspended from the trolley 10 and operated to move up and down.

The container temporary storage tables 8 and 9 are shown in FIGS.
As shown in FIG. 10, the support frame 1 suspended from the trolley 10
5 so that the spreader 11 can move
It is possible to appear in the descending area. That is, the support frame 1
5 is supported by the trolley 10 via suspension members 16.
The spreader 11 and the central part
A passage hole 18 through which the suspended container 2 can pass up and down is formed.
Has been established. Container temporary storage tables 8 and 9 are equipped with wheels 17 ...
The self-propelled rails that were laid on the support frame 15
On 9 and 19, separate waiting positions on both sides of the passage hole 18
The position (the position indicated by a solid line in FIGS. 9 and 10) and the passage hole 18
The common container delivery position, which is the upper position (in the figure,
(Position shown).

According to the bridge type crane 1 constructed as described above, for example, as shown in FIG. 1, the first container 2 is placed at a predetermined storage location 3a from above based on a shipping plan.
a, the second container 2b, and the third container 2c are stacked in this order, and the lower third container 2c is moved to the first container due to a change or deviation in the plan.
Also, when it is necessary to ship before the second containers 2a and 2b, the cargo handling operation including the container reloading operation can be performed extremely efficiently as follows.

[0019] That is, (see FIG. 1) to traverse the trolley 10 to the straight upper reservoir locations 3a, and the lifting operation of the spreader 11, the support frame of the first container 2a from the passage hole 18 1
5 and the first container temporary storage table 8 is
It is moved to the transfer position ( see FIG. 2).

Then, the first container 2a is spreader 1
1 to the first container temporary storage table 8 for temporary storage, and then the first container temporary storage table 8 is moved up and down by the spreader 11
It is retracted outside and held at the standby position (see FIGS. 3 and 4).

[0021] Next, the lifting the second container 2b by spreader 11, the second container provisional table 9 co
The second container 2b is brought to the container delivery position and delivered from the spreader 11 to the second container temporary storage table 9 (see FIG. 4).

The second container 2b is the second container temporary storage 9
Once temporarily placed above the second container provisional table 9 spreads
And moved out of the lifting area of the disk 11 and held at the standby position.
The third container 2c is lifted by raising and lowering the spreader 11 (see FIGS. 4 and 5).

Then, the trolley 10 is traversed to a position immediately above the shipping place 3b, and the spreader 11 is lowered.
Truck 1 waiting for third container 2c at shipping location 3b
4 and the shipping operation is completed (see FIGS. 5 and 6).

Thereafter, when the spreader 11 is raised,
Together to traverse the trolley 10 to the straight upper savings distillation locations 3a,
Second container 2b brought to the container delivery position
The container is transferred from the temporary storage table 9 to the spreader 11 ( FIG. 7 ) .
reference).

When the second container 2b is suspended from the spreader 11, the second container temporary placing table 9 is brought to the standby position, and the spreader 11 is lowered to move the second container 2b.
Is returned to the storage location 3a (see the chain line in FIG. 7).

[0026] Thus, when the re-loading of the second container 2b is completed, raise the spreader 11, the first container
1st container temporary placement which brought 2a to the container delivery position
From the stand 8 to the spreader 11, and further into the first container
After the temporary mounting table 8 is withdrawn from the elevating area to the standby position , the spreader 11 is lowered to load the first container 2a on the second container 2b, and the reloading operation is completed (see FIG. 8 ).

As described above, since the traversing and elevating of the spreader 11 and the traversing of the temporary container tables 8 and 9 are performed in an overlapping manner, the traveling of the crane 1 is not required, and the conventional bridge is not required. The time cycle of the cargo handling work including the reloading of the container can be greatly reduced as compared with the case of using the type crane. This advantage becomes more pronounced as the number of containers requiring reloading increases (and as the temporary storage location moves away from the storage location). Only
Is also duplicated by the spreader 11 and the temporary storage tables 8 and 9.
Number of containers 2 can be simultaneously transferred onto the shipping place 3b
For example, when shipping a plurality of containers 2 ...
This is also advantageous in terms of work efficiency.

The present invention is limited to the above embodiment.
Instead, do not deviate from the basic idea of the present invention.
Can be improved and changed as needed.

For example, in the above embodiment, the second container
The temporary storage table 9 is abolished, and the first container
So that the tena 2a and the second container 2b are placed
Is also good. By the way, the number of container
Usually, the number of stacked containers in container yard 3
Must be set in advance, and the container
In this case, as in the above embodiment, N-1 container temporary storage tables
However, as mentioned above, one
Put multiple containers on the temporary storage table
In other words, the number of containers to be temporarily stored is less than N-1.
can do. In extreme cases, one container temporary storage table
Is configured so that N-1 containers can be placed
And one when containers are loaded and stored in four or more stages
Can be dealt with by the temporary container base.

Further , means for traversing the container temporary storage tables 8, 9 and
And support means for traversing the trolley 10 and the spreader 11
Do not hinder vertical movement and traverse, and between spreader 11
Optional, provided that container 2 can be delivered
You. Further, the container temporary storage tables 8 and 9 are
Change the support position in the vertical direction according to the height (height)
May be adjusted. Also, the spreader 11 is lifted.
The emergence of the temporary storage tables 8 and 9 in the descending area is described above.
It is not always necessary to perform in the transverse direction of the trolley 10 as
Instead, for example, in a direction orthogonal to this.
It is also possible.

Further , the present invention relates to the above-mentioned rail type bridge
Can travel in any direction on the container yard other than the lane
Of course, it can also be applied to bridge type cranes with tires.
You.

[0032]

[Effect of the invention] It can be easily understood from the above description.
According to the bridge crane of the present invention,
Includes reloading of containers, even in the event of misalignment
Cargo handling can be performed efficiently, and container storage
Sufficiently respond to trends in shorter stay periods and automation of cargo handling operations
be able to. Moreover, a temporary storage area for reloading is secured.
Storage at the container yard
You can make the most of your pace.

[Brief description of the drawings]

1 is a side view showing an embodiment of a bridge crane according to the present invention.

FIG. 2 is a side view showing a start state of a reloading operation.

FIG. 3 is a side view showing a temporary placement operation state of the first container.

FIG. 4 is a side view showing a state in which a second container is temporarily placed.

FIG. 5 is a side view showing a state where the shipping operation of the third container is started.

FIG. 6 is a side view showing a state where the shipping operation of the third container is completed.

FIG. 7 is a side view showing the storage return operation state of the second container.

FIG. 8 is a side view showing the storage return operation state of the first container.

FIG. 9 is a cross-sectional plan view taken along the line AA of FIG . 2 ;

FIG. 10 is a vertical sectional side view taken along the line BB of FIG . 9 ;

FIG. 11 is a side view showing a conventional bridge-type crane .

[Explanation of symbols]

1. Bridge crane, 2, 2a, 2b, 2c ... container,
Reference numeral 3 denotes a container yard, 3a denotes a storage location, 3b denotes a shipping location, 6 denotes a girder, 7 denotes a cargo handling device, 8, 9 denotes a temporary container, 10 denotes a trolley, and 11 denotes a spreader.

Claims (1)

(57) [Scope of request for utility model registration] 1. A bridge-type crane comprising: a cargo handling apparatus having a spreader and supported by a girder so as to be able to traverse the girder;