JPS6322490A - Container shifter - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] 1. “Industrial Application Field” The present invention relates to unloading from a berthed container ship to a quay,
It also relates to a newly developed container transfer device to improve the efficiency of loading cargo from a quay to a container ship.

Containers and cranes have conventionally been used to unload and load containers between the berth and a docked container ship.

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 a girder 6 is horizontally supported by the frame body 5 toward the sea side, and a girder 6 is installed at the tip of the girder 6 so that its length can be extended. A trolley 8 is connected to the boom 7 so as to be movable up and down, and moves along the girder 6 and the boom 7.
The spreader 9, which is a container hoist, is a hoisting device■0
It is provided so that it can be moved up and down. In the frame body 5, the tips of the legs 11 spaced apart from each other at a predetermined interval rest on guide rails 12 laid along the quay 4, and the guide rails 12 support the container ship 2 in the longitudinal direction of the hull of the container ship 2. It is possible to move to. The frame body 5 is also provided with a relay stand 14 on which the container 3 is temporarily placed, and auxiliary girders 15 arranged horizontally on three sides of the relay stand 14. 15 is provided with an auxiliary trolley 17 that is equipped with a container hanger 16 and can run along the auxiliary girder 15.

The cargo handling work using the container crane I as described above will be explained as follows, taking the case of unloading as an example.

First, as shown in Figure 4, 1. Container ship 2 arrived at the berth.
With the boom 7 extended above, the trolley 8 is moved back and forth along the girder 6 and the boom 7,
The containers 3 loaded on the container ship 2 are transferred one by one to the transfer stand 14.

Then, the containers 3 carried onto the transfer stand 14 are transported to the quay 4- by the container hoist 16 of the auxiliary trolley 17 until the trolley 8 brings the next container 3. 8 and is transported to a desired location by this transport 18).

[Problems to be solved by the invention] By the way, in the above-mentioned container crane,
The transport distance of the container 3 by the auxiliary trolley 17 is the fourth
As can be seen from the figure, the transport distance of the trolley 8 is much smaller, and therefore the time required to unload one container 3 is longer than the time required for unloading one container 3. 3 to the transfer stand 14 and then return to the top of the next container 3 to be unloaded (hereinafter referred to as cycle time). It becomes necessary to shorten the cycle time of 8.

One possible way to shorten this cycle time is to increase the running speed of the trolley 8 and the lifting speed of the spreader 9 in the container crane 1.
With such a method, it is difficult to significantly shorten the time due to design reasons, and although it is still good when installing a new container crane 1, when using an existing container crane 1,
This would require extensive modification and is virtually impossible.

In addition, this type of container crane 1 is generally designed so that the length of its boom 7 is the maximum width of a so-called Panamax type ship. Since the tip cannot reach the side edge of the hull, the efficiency of the work is extremely poor.In such a case, the above-mentioned method of increasing the running speed of the trolley 8 and the running speed of the spreader 9 will reduce the effectiveness -1- I can't steal it.

This invention was made in view of the above-mentioned circumstances, and even when using an existing container crane or in the case of a ship with a very wide hull, it is possible to effectively utilize the trolley cycle time of the container crane. It is an object of the present invention to provide a container transfer device that can significantly reduce the time and therefore the working time and efficiency of container cargo handling.

A container transfer device according to the present invention is installed on a container guide installed on the deck of a container ship, and is used in combination with a container crane installed on a quay. and a main body frame that is installed on the upper frame of the container guide installed on the container ship and can run in the width direction of the ship;
A spreader, which is movably suspended by a hoisting device provided on a part of the frame of the main body frame and suspends the container, and a spreader which has a traveling function separate from the main frame and passes under the main frame. The container guide is disposed on the middle frame of the container guide so as to obtain the container guide, and is provided with a relay container holder that enters under the main body frame and transfers the container to the spreader.

"Function" The container transfer device according to the present invention installs the main body frame and the transit container cradle on a container guide erected on the deck of a berthed container ship. A series of cargo handling operations will be carried out in cooperation with the container crane installed at the station.

The main body frame of this container transfer device is installed via rails etc. on the stage frame 1 of the container kite erected on the deck so that the spreader can go in and out of the container loading area. The vehicle is made movable in the width direction of the hull by means of traveling means installed in the main body frame. In addition, the relay container holder is attached to the middle frame of the container guide in the same way as the main frame so that it can pass under the main frame.
1- via a rail etc., and the relay container receiver 1
One vehicle is equipped with a traveling means that allows it to travel in the width direction of the hull.

This equipment allows container cargo handling to be carried out from the container ship to the quay.
Taking the case of unloading onto the chassis of - as an example, the explanation is as follows.

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

At this time, the relay container holder is connected to the spreader.
Move it away from the main body frame so that it does not interfere with the lifting and lowering of the main body.

Then, the spreader is lowered to grasp the containers loaded in the container ship or the hold of the ship, as shown in FIG. Next, as shown in Figure 1, raise the spreader twice and pull out the container. When the lower end of the container is slightly above the relay container holder (1), lift the spreader. stop the rise.

Then, either or both of the relay container holder and the main body frame are moved to place the relay container holder under the container lifted within the main body frame.

Then, the spreader is lowered to place the lifted container on the relay container cradle, and then the grip by the spreader is released, and the relay container cradle is moved out of the main body frame.

Next, as shown in Figure 3, the spreader suspended on the trolley of the container crane is lowered, and the container placed on the relay container pedestal is lifted up, and the rest is carried out in the same manner as before. The trolley on the container crane is run to lower the container to the shaan on the quay, but in the meantime the main body frame and the relay container cradle are moved to the next cargo handling operation. In other words, the main body frame takes out the second container from the hull 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. Drive toward the quay side so that you can meet the returning container crane trolley 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 the position of the container next loaded by the main body frame.
The optimal position is calculated from the current position of the trolley and relay container cradle, etc., so as to eliminate unnecessary waiting time.

Then, at the point where they meet, the container crane trolley and the relay container receiver iJ stand are stopped, the container is transferred between them, and then the relay container receiver (1
The platform travels toward the main frame to pick up the third container, and the container crane goes to lower the second container onto the chassis.

Repeat the same steps below.

Note that when loading containers from the quay onto a container ship, the trolley of the container crane, the relay container cradle, etc. may be operated in the opposite manner to the above.

When cargo handling is carried out in the manner described above, for the second and subsequent containers, the relay container cradle and main body frame move on the ship's hull and move to the position where the containers are delivered to the trolley of the container crane. The travel distance of the container crane's two trolleys is reduced as the container crane approaches the quay.

In this case, the reduction in trolley travel distance is much greater than in the traditional deployment of an auxiliary trolley on the container crane, so this significantly reduces the cycle time of the trolley on the container crane. This makes it possible to significantly reduce container handling time and efficiency.

In addition, if such a container transfer device is used, even in the case of a ship whose hull width exceeds the maximum value for the Panamax type, it will be possible to move around the main body frame and the relay container cradle in areas that the container crane cannot reach. All you have to do is
Even in the case of a ship with a very large hull width, the container transfer device can be effectively utilized, and the work and efficiency of container cargo handling can be significantly reduced.

In addition, in the container transfer device of the present invention, both the main frame and the relay container receiver are installed on the container guide, but in that case, the relay container receiver is lower than the main frame. The lifting distance of the container by the spreader on the main body frame can be kept small, which reduces the loading time between the main frame and the relay container receiver (one unit). At the same time, it is also possible to reduce the size of the main body frame and promote the compactness of the equipment. Furthermore, it is possible to reduce the height of the gap between the cantilever of the existing container crane and the cell guide on the container ship. Even when the gap is small, work can proceed efficiently without any problems.

"Embodiment" FIGS. 1 to 3 show an embodiment of the container transfer apparatus according to the present invention. It is something that

Reference numeral 20 in these figures is a container transfer device, and parts common to conventional container cranes, container ships, etc. are given the same numbers to simplify the explanation.

As shown in FIG. 1, this container transfer device 20 is installed on the second frame of the container guide G installed on the deck 2a of the container ship 2, and extends in the width direction of the ship. A main body frame 2I that can run, a hoisting device 22 attached to the upper frame 21a of this main body frame 21, a spreader 23 that is held movably up and down by this hoisting device 22 and hangs the container 3, and the main body frame 2.
1, the middle frame of the container guide G is provided with a relay container holder 24 which can run in the width direction of the hull separately from the main body frame 21.

The container guide G mentioned above is a frame that is installed on the deck 2a of the container ship 2 in order to save the manpower required for lashing.
As shown in Figures 1 and 2, deck '2 a-J-
It is installed upright in the gap C between the containers 3 loaded on the container. And the 4-stage frame G of this container guide G
, a rail 25 that serves as a running path for the main body frame 2I is installed along the width direction of the hull, and the middle frame G2-F',
A rail 27, which serves as a travel path for the relay container cradle 24, extends along the width direction of the hull.

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

The aforementioned rail 27 is laid parallel to the inside of the rail 25. On the other hand, the relay container receiving stand 24 has a plate shape on which the container 3 can be placed, and running wheels 28 that ride on the rails 27 are provided on both sides of the relay container receiving stand 24. The stand 24 passes under the main body frame 2I and is movable in the width direction of the hull.

The height of the main body frame 21 is such that even when the relay container holder 24 enters under it, the height of the main body frame 21 is such that the relay container holder 24
The space is set so that a space capable of accommodating the container 3 remains above the container.

The main body frame 21 and the relay container pedestal 24 are set onto the container guide G by the container crane 1 on the quay side.

The movement of the main body frame 21 and the relay container pedestal 24 described above is controlled by a control device (not shown).

This control device controls the position of the chassis 18 on land, the position of the container 3 handled by the main body frame 21, the current position of the trolley 8, the main body frame 21, and the relay container pedestal 2.
A position detection device detects the position of the main body frame 21 and the relay container pedestal 24, etc. in order to minimize the cycle time of the trolley 8 based on the signals from these position detection devices. The controller is equipped with a calculation device that calculates the relay container holder 24.
The position where the trolley 8 meets the trolley 8 is automatically adjusted to the optimum position.

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

Container cargo handling by this device 20 will be explained below, taking as an example the case where the container is unloaded from the container ship 2 to the chassis 18 on the quay 4''.

First, as shown in Fig. 3, move the main body frame 21 to three sides of the container 3 to be unloaded first, and
3 is located at the true -1- of the container 3 to be unloaded.

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

Then, the spray soda 23 is lowered to grip the container 3 loaded on the container ship 2 as shown in FIG. Then, as shown in FIG. 1, raise the spreader 23 and pull out the container 3. When the lower end of the container 3 reaches a position slightly above the relay container holder 24, the spreader 23 ' to stop Nisho.

Then, either one or both of the relay container holder 24 and the main body frame 21 are run, and the main body frame 21 is moved.
A relay container holder 24 is placed under the container 3 lifted up inside.

Next, the spreader 23 is lowered and the container 3 that was being lifted is placed on the relay container holder 24 at -1-
Then, the grip by the spreader 23 is released, and the relay container holder 24 is moved out of the main body frame 21.

Next, as shown in FIG. 3, the spreader 9 suspended from the trolley 8 of the container crane 1 is lowered, and the container 3 placed on the relay container receiver 1 platform 24 is lifted up. In the following, the trolley 8 of the container crane 1'' is run and the container 3 is lowered onto the chassis 18 on the quay in the same manner as before, but during this time, the main body frame 21 and the relay container receiver 11 24 are moved to the next loading/unloading stage. Move on to action. That is, the main body frame 21 takes out the second container 3 from the hull by the same operation as described above, and on the other hand,
The relay container cradle 24 receives the second container 3, and then lowers the first container 3 to Nyasi 18) so that it can meet the trolley 8 of the container crane 1 returning earlier. Drive towards quay 4 side.

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 land-to-hire shear 18, and then the position of the container 3 to be loaded by the main body frame 21, and From the positions of the trolley 8 and the relay container holder 24, etc., the optimum position is calculated so as to eliminate unnecessary waiting time.

At the point where we met, trolley 8 of container crane l
and stop the traveling of the relay container cradle 24,
The container 3 is transferred between the two, and then the relay container receiving stand 24 moves toward the main body frame 21 to receive the third container 3, and the container crane l transfers the second container 3 to the chassis 18, J : I'm going to drop you off at. Repeat the same steps below.

Incidentally, when loading the containers 3 from the quay onto the container ship 2, the trolley 8 of the container crane 1, the relay container cradle 24, etc. may be operated in the opposite manner to the above.

When cargo handling is carried out as described above, the second and subsequent containers 3 are placed on the relay container receiving stand 24.
The traveling distance of the trolley 8 of the container crane 1 is reduced by the amount that the body frame 21 travels on the ship's hull and the position where the container 3 is delivered to the trolley 8 of the container crane 1 approaches the quay.

In this case, the rate at which the traveling distance of the trolley 8 is reduced is
Since the auxiliary trolley is much larger than the conventional case where the auxiliary trolley is placed on top of the container crane, this greatly shortens the cycle time of the trolley 8 of the container crane, improving the working time and efficiency of container cargo handling. It becomes possible to shorten the time considerably.

Moreover, if such a container transfer device 2o is used,
Even in the case of a ship whose hull width exceeds the maximum value for the Panamax type, it is sufficient to run the main body frame 21 and the relay container pedestal 24 in areas that cannot be reached by the container crane l. Even in the case of ships,
The container transfer device 20 can be effectively utilized, and the work and efficiency of container cargo handling can be significantly reduced.

In addition, in the above-mentioned container transfer device 2o, both the main body frame 21 and the relay container cradle 24 are installed on the container guide G. Since the spreader of the main body frame 21 is also attached to the lower frame G2,
23 can be kept small, thereby making it possible to shorten the cargo handling time between the main body frame 21 and the transit container receiving stand 24, and also to reduce the dimensions of the main body frame 21. Furthermore, even when the vertical gap between the cantilever of an existing container crane and the cell guide on a container ship is small, the work can be done efficiently without any problems. It can be advanced.

In the above-mentioned embodiment, the main body frame 21 and the relay container holder 24 each run on rails, but it is also possible to use a trackless type that does not use rails or a combination of rack and pinion. etc. can also be used.

"Effects of the Invention" As is clear from the above description, the container transfer device of the present invention has a main body frame that is disposed on the upper frame of a container guide installed upright on a container ship and can move in the width direction of the ship. , a spreader that is movably suspended by a hoisting device provided on the upper frame of the main body frame to hang the container; and a spreader that has a traveling function separately from the main frame and can pass under the main body frame. It is arranged on the middle frame of the container guide, and includes a relay container cradle that goes under the main body frame and transfers the container to the spreader. By using a container crane or the like, it can be easily installed on the container guide of a berthed container ship. A series of cargo handling operations are carried out in cooperation with the container crane, and in this case, the container transfer device of the present invention is capable of handling the hoisting device, spreader, and transit container that constitute the device. By operating the cradle etc. appropriately, containers can be freely transferred between any loading location on the container ship and the transit container cradle, and the The traveling function allows the container to be transported to any position along the running direction of the container crane's trolley, and therefore the container can be transferred to and from the container crane's trolley at any position along the trolley's running path. It can be done with

While the container crane's trolley is handling the container between the chassis on the quay, the container transfer device completes the loading and unloading on the ship's hull, and moves the container to the quay so that the next container can be delivered more quickly. By moving the relay container cradle to the side, the travel distance of the trolley on the container crane is reduced by the distance that the relay container cradle approaches the quay, and this reduces the cycle of the trolley on the container crane. Since the time is significantly reduced, it becomes possible to significantly reduce the working time and efficiency of container cargo handling.

In addition, if such a container transfer device is used, even in the case of a ship whose hull width exceeds the maximum value for the Panamax type, it will be possible to move around the main body frame and the relay container cradle in areas that the container crane cannot reach. All you have to do is let it happen.
Even in the case of a ship with a very large hull width, the container transfer device can be effectively utilized, and the work and efficiency of container cargo handling can be significantly reduced.

In addition, in the container transfer device of the present invention, both the main body frame and the relay container cradle are installed on the container guide, but in that case, the relay container cradle is placed on a lower stage than the main body frame. Since it is attached to the frame, it is possible to keep the lifting distance of the container by the spreader of the main body frame small, which makes it possible to shorten the cargo handling time between the main body frame and the relay container cradle. It is also possible to reduce the size of the main body frame and promote the downsizing of the equipment, and it is also possible to reduce the size of the main body frame, making it possible to further reduce the size of the existing container crane cantilever and container ship.
Even if the gap in the height direction between the cell guide and the cell guide is small, the work can proceed efficiently without any problems.

[Brief explanation 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, and FIG. 3 is a view showing how the above embodiment is used.
FIG. 4 is an explanatory diagram of a conventional cargo handling method. 2... Container ship, 2a... Deck, 3
・・・Container, 4-・Wharf, 8 ・・Trolley, 18
...Sharn, 20...Container transfer device, G...Container guide, G,...Two-tier frame, G2...Middle frame, 21...・・・
・Body frame, 21a..."Two-part frame, 21C
...Traveling wheels, 22...Hoisting device, 23
...Spreader - 124 ... Relay container holder, 25 ... Rail, 27 ... Rail, 28 ... Traveling wheels.

Claims (1)

[Claims] The main body frame is placed on the upper frame of the container guide installed on the container ship and is movable in the width direction of the ship, and the container is lifted up and down by the hoisting device installed on the upper frame of this main body frame. a lowering spreader, which has a traveling function separate from the main body frame and is disposed on the middle frame of the container guide so as to be able to pass under the main body frame; A container transfer device equipped with a relay container cradle for receiving and receiving containers.