JPH0768035B2 - Container transfer device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION "Industrial field of application" The present invention relates to the unloading of a docked container ship to a quay,
Alternatively, it relates to a container transfer device newly developed to improve the work efficiency of loading from a quay to a container ship.

“Conventional technology” Conventionally, container cranes have been used for unloading and loading containers on the quay and between the docked container ships.

FIG. 4 shows a conventional example thereof, in which reference numeral 1 is a container crane, 2 is a container ship, and 3 is a container loaded on the container ship 2.

The container crane 1 is permanently installed on the quay 4, and the girder 6 is horizontally supported by the frame body 5 toward the sea side, and its length can be extended to the tip of the girder 6. A boom 7 is vertically rotatably connected to the trolley 8 that moves along the girder 6 and the boom 7.
Further, a spreader 9 which is a container hanging tool is provided to be vertically movable by a hoisting device 10. Further, in the frame main body 5, the tips of the legs 11 spaced apart from each other are placed on the guide rails 12 laid along the quay 4, and the guide rails 12 allow the hull longitudinal direction of the container ship 2 to move. It is possible to move to. In addition, the frame body 5 has a container 3
Is provided with an intermediary stand 14 on which is temporarily placed, and an auxiliary girder 15 that is horizontally disposed above the intermediary stand 14, and the auxiliary girder 15 is equipped with a container suspending tool 16 to provide the auxiliary An auxiliary trolley 17 capable of traveling along the girder 15 is provided.

The cargo handling work using the container crane 1 as described above will be described below by taking the case of unloading as an example.

First, as shown in FIG. 4, the boom 7 is projected on the docked container ship 2, and then the trolley 8 is attached.
Are reciprocated along the girder 6 and the boom 7, and the containers 3 loaded on the container ship 2 are sequentially transferred to the relay stand 14 one by one. Then, the container 3 carried on the relay stand 14 is a chassis (carriage) 18 which sequentially runs on the quay 4 by the container suspension 16 of the auxiliary trolley 17 until the trolley 8 carries the next container 3. And is transported by the chassis 18 to the desired location.

"Problems to be Solved by the Invention" By the way, in the container crane 1 as described above,
As can be seen from FIG. 4, the transportation distance of the container 3 by the auxiliary trolley 17 is much smaller than the transportation distance of the trolley 8, and therefore, the time required to unload one container 3 is predetermined by the trolley 8. The time from when the container 3 is located above the container 3 to when the container 3 is moved to the relay stand 14 and returned to the next container 3 to be unloaded again (hereinafter referred to as cycle time). It is necessary to shorten the cycle time of the trolley 8 in order to shorten the work efficiency and improve the work efficiency.

As one of the methods for shortening the cycle time, it is possible to increase the traveling speed of the trolley 8 and the ascending / descending speed of the spreader 9 in the container crane 1.
With such a method, it is difficult to significantly reduce the length in terms of design, and it is still good when a new container crane 1 is installed, but when using an existing container crane 1,
Substantial modification is necessary and practically impossible.

Further, in general, this type of container crane 1 is designed such that the length of the boom 7 is the maximum width of a so-called Panamax type ship, and the boom 7 of the ship is larger than the width of the ship. Since the tip does not reach the side edge of the hull, the work efficiency is extremely poor. In such a case, the effect cannot be improved by the method of increasing the traveling speed of the trolley 8 or the traveling speed of the spreader 9 described above. .

The present invention has been made in view of the above circumstances, and effectively utilizes the cycle time of the trolley in the container crane even when using an existing container crane or in the case of a ship having a very large hull width. It is an object of the present invention to provide a container transfer device that can be significantly shortened and therefore can significantly reduce the working time and efficiency of container handling.

"Means for Solving Problems" The container transfer device according to the present invention is installed on a container guide erected on the deck of a container ship and used in combination with a container crane installed on a quay. The main frame is supported by the upper frame of the container guide erected on the deck of the container ship so that it can travel in the width direction of the hull, and the hoisting device provided on the upper frame of the main frame suspends it vertically. It has a structure in which a spreader for suspending a container and a relay container cradle for transferring the spreader and the container are supported by a middle frame of the container guide so as to be capable of traveling in an inner position of the upper frame in the width direction of the hull. There is.

[Operation] In the container transfer device according to the present invention, each of the main body frame and the relay container cradle is installed on a container guide erected on the deck of a container ship docked at the shore, and is placed on the quay side. Carry out a series of cargo operations in cooperation with the provided container crane.

The body frame of this container transfer device is installed via rails on the upper frame of the container guide that is erected on the deck so that the spreader can move in and out of the loading place of the container. By the traveling means
It should be able to run in the width direction of the hull. In addition, the relay container cradle is installed on the middle frame of the container guide via rails or the like like the main body frame so that it can pass under the main body frame, and is installed in the relay container cradle. The traveling means enables traveling in the width direction of the hull.

The container loading and unloading by this device will be described below by taking an example of unloading from a container ship to a chassis on the quay.

First, as shown in FIG. 3, the main body frame is moved above the container to be unloaded first, and the spreader is positioned right above the container to be unloaded.

At this time, the relay container cradle is retracted to a position away from the main frame so as not to interfere with the lifting and lowering of the spreader.

Then, next, the spreader is lowered to grip the container loaded on the container ship or in the hold as shown in FIG. Then, as shown in FIG. 1, the spreader is raised to pull up the container, and when the lower end position of the container reaches a position slightly above the relay container cradle, the spreader is stopped from rising.

Then, either one or both of the relay container cradle and the main body frame is run, and the relay container pedestal is put under the container suspended in the main body frame.

Next, the spreader is lowered and the suspended container is placed on the relay container pedestal, and then the grip by the spreader is released, and the relay container pedestal is withdrawn to the outside of the main frame.

Then, as shown in FIG. 3, the spreader suspended on the trolley of the container crane is lowered to lift the container placed on the relay container cradle. The trolley on the container crane is run to lower the container to the chassis on the quay, while the main frame and the relay container cradle move to the next cargo handling operation. That is, the main frame removes the second container from the inside of the ship by the same operation as described above, while the relay container cradle receives the second container, and then lowers the first container onto the chassis and then returns. Drive toward the quay side so that you can meet the trolley of the incoming container crane earlier.

In this case, the position where the trolley of the container crane meets the relay container cradle is the position of the chassis on land, and then the position of the container on which the main frame is loaded,
An optimal position that eliminates unnecessary waiting time is calculated from the current position of the trolley, the container cradle for relay, and the like.

Then, at the point where they met, the traveling of the container crane trolley and the relay container cradle was stopped, the containers were transferred between them, and then the relay container cradle traveled toward the main frame to receive the third container. Then
The container crane goes to unload the second container on the chassis. The same operation is repeated thereafter.

When loading a container from the quay to a container ship, the trolley of the container crane, the container cradle for the relay, and the like may be operated in the reverse manner.

When the loading and unloading is performed as described above, for the second and subsequent containers, the relay container cradle and the main body frame travel on the hull, and the position where the container is transferred to the trolley of the container crane. The distance that the trolley on the container crane travels is reduced by the amount that the ship approaches the quay.
In this case, the mileage of the trolley is reduced much more than the conventional case where the auxiliary trolley is installed on the container crane, which significantly increases the cycle time of the trolley on the container crane. It will be shortened and it will be possible to significantly reduce the working time and efficiency of container handling.

In addition, by using such a container transfer device, even in the case of a ship whose hull width exceeds the maximum value of the Panamax type, it runs on the main frame and the relay container cradle within the range that the container crane cannot reach. You can
Even in the case of a ship having a very large hull width, the container transfer device can be effectively used, and the work / efficiency of container handling can be significantly reduced.

Further, in the container transfer device of the present invention, both the main body frame and the relay container pedestal are installed on the container guide, but in that case, the relay container pedestal is located below the main body frame. Since it is attached to the frame, the vertical distance of the container due to the spreader of the main body frame can be kept small, which makes it possible to shorten the loading time between the main body frame and the relay container cradle and It is also possible to reduce the size of the frame to promote compactness of the device, and even if there is a small gap in the height direction between the cantilever of the existing container crane and the cell guide on the container ship, there is no problem. , The work can be progressed efficiently.

"Embodiment" FIGS. 1 to 3 show an embodiment of a container transfer apparatus according to the present invention.

Reference numeral 20 in these figures is a container transfer device, and the parts common to the conventional ones such as the container crane and the container ship are given the same numbers to simplify the description.

As shown in FIG. 1, this container transfer device 20 is provided on an upper frame of a container guide G which is erected on a deck 2a of a container ship 2 and is capable of traveling in the width direction of the ship. The frame 21, the hoisting device 22 attached to the upper frame 21a of the body frame 21, and the hoisting device 22
A spreader 23 that is held so that it can be lifted up and down to suspend the container 3 and that can travel in the width direction of the hull separately from the body frame 21 on the middle frame of the container guide G that passes under the body frame 21. It is configured to include a container cradle 24.

The above-mentioned container guide G is a frame that is erected on the deck 2a of the container ship 2 in order to save manpower required for lashing, and is loaded on the deck 2a as shown in FIGS. 1 and 2. A gap C between the containers 3 is also provided upright. And
The upper frame G ₁ of this container guide G has a body frame 21
A rail 25 that serves as a traveling path for the vehicle is extended along the width direction of the hull, and a relay container cradle is provided on the middle frame G _2.
A rail 27, which serves as a running path for 24, is extended along the width direction of the hull.

The main body frame 21 is provided with traveling wheels 21c at the lower ends of legs 21b located at both ends of the upper frame 21a, and the traveling wheels 21c are set on the above-mentioned rail 25, and are not shown. When the traveling wheels 21c are driven by the drive device, the traveling wheels 21c can travel along the rails 25 from end to end of the hull, and as a result, the trolley 8 of the container crane 1 installed on the quay 4 side. It is possible to drive in the same direction as the trolley 8 directly below. Further, the bottom of the main body frame 21 is open so that the spreader 23 can be freely moved up and down.

The above-mentioned rail 27 is installed inside the rail 25 in parallel. On the other hand, the relay container cradle 24 has a plate-like shape on which the container 3 can be placed, and traveling wheels 28 for riding on the rails 27 are provided on both sides of the pallet.
The relay container cradle 24 can be moved forward and backward in the width direction of the hull by passing under the body frame 21 by 29.

The height of the body frame 21 is below the container pedestal for relay.
Even when 24 enters, a space for accommodating the container 3 remains above the relay container cradle 24.

The setting of the main body frame 21 and the relay container cradle 24 on the container guide G is performed by the container crane 1 on the quay side.

The traveling of the main body frame 21 and the relay container cradle 24 described above is controlled by a controller (not shown).

This control device is a position detecting device for detecting the position of the chassis 18 on land, the position of the container 3 which is subsequently handled by the main body frame 21, and the current positions of the trolley 8, the main body frame 21 and the relay container cradle 24. And a calculation device that receives signals from these position detection devices and calculates the movement distance of the main body frame 21 and the relay container cradle 24 so that the cycle time of the trolley 8 becomes the shortest. However, the position where the relay container cradle 24 and the trolley 8 meet is automatically adjusted to the optimum position by the control device.

The container transfer device 20 as described above performs a series of cargo handling in cooperation with the container crane 1 provided on the quay 4 side.

The case of unloading the container by the device 20 from the container ship 2 to the chassis 18 on the quay 4 will be described as an example.

First, as shown in FIG. 3, the main body frame 21 is moved above the container 3 to be unloaded first, and the spreader 23 is positioned right above the container 3 to be unloaded.

At this time, the relay container cradle 24 is retracted to a position away from the main body frame 21 so as not to interfere with the lifting and lowering of the spreader 23.

Then, next, the spreader 23 is lowered to grip the container 3 loaded on the container ship 2 as shown in FIG. Then, as shown in FIG. 1, the spreader
23 is raised to pull up the container 3, and when the lower end position of the container 3 reaches a position slightly above the relay container cradle 24, the spreader 23 is stopped from being raised.

Then, either or both of the relay container cradle 24 and the main body frame 21 are made to travel so that the relay container cradle 24 is placed under the container 3 suspended in the main body frame 21.

Then, next, the spreader 23 is lowered and the container 3 that has been lifted is placed on the relay container cradle 24,
Then, the holding by the spreader 23 is released, and the relay container cradle 24 is retreated to the outside of the main body frame 21.

Then, as shown in FIG. 3, the spreader 9 suspended on the trolley 8 of the container crane 1 is lowered to raise the container 3 placed on the relay container cradle 24. The trolley 8 on the container crane 1 is run in the same manner as in the past to lower the container 3 to the chassis 18 on the quay, while the main frame 21 and the relay container cradle 24 move to the next cargo handling. That is, the main body frame 21 takes out the second container 3 from the inside of the hull by the same operation as described above, while the relay container cradle 24 receives the second container 3 and then the first container 3 into the chassis. 18 Drive toward the quay 4 side so that you can meet the trolley 8 of the container crane 1 that comes down after returning to the top 18 earlier.

In this case, the position where the trolley 8 of the container crane 1 and the relay container cradle 24 meet is the position of the chassis 18 on land, and then the position of the container 3 loaded by the main body frame 21, and the trolley at the present time. 8 and the position of the relay container cradle 24, etc., the optimum position that eliminates unnecessary waiting time is calculated.

And at the spot we met, trolley 8 on container crane 1
And the transit container cradle 24 is stopped to transfer the container 3 between them, and then the transit container cradle 24 travels toward the main frame 21 to receive the third container 3 and the container crane 1 goes down the second container 3 onto the chassis 18. The same operation is repeated thereafter.

When the container 3 is loaded on the container ship 2 from the quay, the trolley 8 of the container crane 1, the relay container cradle 24, and the like may be operated in the reverse manner.

When the cargo handling is performed as described above, for the second and subsequent containers 3, the relay container cradle 24 and the main body frame 21 travel on the hull and the trolley 8 of the container crane 1 holds the containers 3 The mileage of the trolley 8 on the container crane 1 is reduced as much as the delivery position approaches the quay. In this case, the rate at which the traveling distance of the trolley 8 is reduced is much larger than that in the case where the auxiliary trolley is arranged on the container crane as in the conventional case. Therefore, the cycle time of the trolley 8 on the container crane 1 is thereby increased. It is possible to significantly reduce the work time and efficiency of container handling.

Further, by using such a container transfer device 20, even in the case of a ship having a hull width exceeding the maximum value of the Panamax type, within the range that the container crane 1 cannot reach, the main body frame 21 and the relay container receiver are provided. It is sufficient to drive the platform 24, and even in the case of a ship having a very large hull width, the container transfer device 20 can be effectively utilized, and the work / efficiency of container handling can be significantly shortened.

Further, in the container transfer device 20 described above, both the main body frame 21 and the relay container pedestal 24 are installed on the container guide G. In that case, the relay container pedestal 24 is more than the main body 21. because it is attached to the frame G ₂ of the lower stage, it is possible to reduce the travel distance of the container 3 by spreader 23 of the body frame 21, whereby, handling time between the body frame 21 and the intermediate container cradle 24 It is also possible to reduce the size of the main body frame 21 and promote compactness of the device, and also to improve the height between the cantilever of the existing container crane and the cell guide on the container ship. Even when the gap in the depth direction is small, the work can be efficiently advanced without any trouble.

In the above-mentioned embodiment, each of the main body frame 21 and the relay container cradle 24 is designed to run on rails, but a trackless type without rails, or a combination of rack and pinion, etc. Can also be

[Advantages of the Invention] As is clear from the above description, the container transfer device of the present invention is provided on the upper frame of the container guide which is erected on the container ship, and has a main body frame that can travel in the width direction of the hull. , A spreader that is suspended by a hoisting device provided in the upper frame of the main body frame to suspend the container and suspends the container, and has a traveling function separately from the main body frame so that it can pass under the main body frame. Is provided on the middle frame of the container guide, and is configured to include the spreader and a relay container cradle that passes under the main body frame to transfer the container, and the container is provided on the quay side. By using a crane, etc., it can be easily installed on the container guide of a docked container ship. Then, a series of cargo handling is performed in cooperation with the container crane. In that case, the container transfer device of the present invention includes a hoisting device, a spreader, a relay container cradle, etc., which constitute the device. By operating appropriately, it is possible to freely transfer the container between the arbitrary loading place on the container ship and the relay container cradle, and also depending on the traveling distance equipped on the relay container cradle, The container can be transported to any position along the traveling direction of the trolley of the container crane, so that the container can be transferred to and from the trolley of the container crane at any position in the traveling route of the trolley. it can.

Then, while the trolley of the container crane is loading and unloading the container with the chassis of the quay, the container transfer device finishes the loading and unloading on the hull and enables the next container to be transferred more quickly. If the relay container cradle is moved to, the traveling distance of the trolley on the container crane is reduced by the distance that the relay container cradle is closer to the quay. Since it is drastically shortened, it is possible to drastically shorten the working time and efficiency of container handling.

In addition, by using such a container transfer device, even in the case of a ship whose hull width exceeds the maximum value of the Panamax type, it runs on the main frame and the relay container cradle within the range that the container crane cannot reach. You can
Even in the case of a ship having a very large hull width, the container transfer device can be effectively used, and the work / efficiency of container handling can be significantly reduced.

Further, in the container transfer device of the present invention, both the main body frame and the relay container pedestal are installed on the container guide, but in that case, the relay container pedestal is located below the main body frame. Since it is attached to the frame, the vertical distance of the container due to the spreader of the main body frame can be kept small, which makes it possible to shorten the loading time between the main body frame and the relay container cradle and It is also possible to reduce the size of the frame to promote compactness of the device, and even if there is a small gap in the height direction between the cantilever of the existing container crane and the cell guide on the container ship, there is no problem. , The work can be progressed efficiently.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the container transfer device according to the present invention, FIG. 2 is a side view of the same, FIG. 3 is a use explanatory view of the embodiment, and FIG. 4 is a conventional cargo handling method. FIG. 2 ... Container ship, 2a ... Deck, 3 ... Container, 4 ...
… Quay, 8 …… Trolley, 18 …… Chassis, 20… Container transfer device, G… Container guide, G ₁ …… Upper frame, G ₂ …… Middle frame, 21 …… Main frame, 21a …… Upper frame, 21c ...... running wheels, 22 …… winding device, 23 …… spreader, 24 …… relay container cradle, 25 …… rails, 27 …… rails, 28 …… running wheels.

Claims (1)

[Claims] 1. A body frame (21) movably supported in the width direction of the hull on an upper frame (G ₁ ) of a container guide (G) erected on a deck (2a) of the container ship (2), The hoisting device (22) provided on the upper frame (21a) of this body frame
A spreader (23) that is hung up and down to suspend the container (3) and a middle frame (G ₂ ) of the container guide that is supported inside the upper frame so that it can travel in the width direction of the hull. A container transfer device equipped with a relay container cradle (24) for delivering and receiving containers.