JPH0768032B2 - 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 end does not reach the side edge of the hull, the work efficiency is extremely poor. In such a case, the traveling speed of the trolley 8 and the spreader 9 described above are used.
The effect cannot be improved by increasing the running speed of.

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 used in combination with a container crane installed on a quay and has a height dimension capable of accommodating a container and a width direction of a hull. A main body frame that has the traveling function of and is installed on the deck of a container ship, a trolley attached to the upper frame of the main body frame so that it can travel in the front-back direction of the hull, and a trolley that can be moved up and down A spreader for suspending the container and suspending the container, and a relay container cradle for horizontally advancing and retreating so as to open and close the lower part of the main body frame and for mounting the container when advancing are provided.

[Operation] The container transfer device according to the present invention is installed and used on the deck of a container ship docked at a shore, and performs a series of cargo handling in cooperation with a container crane provided on the berth side.

The body frame of this container transfer device is arranged on a rail or the like laid at an appropriate position on the deck so that the spreader can move in and out of the loading place of the container. , Allow the vehicle to travel in the width direction.

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 3 to be unloaded first, and the position of the trolley is further adjusted so that the spreader is located right above the container to be unloaded. Then, the relay container cradle is retracted from below the spreader so that the bottom of the main frame is opened. Then, next, the spreader is lowered to grip the containers loaded in the container ship 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, and the container container for the relay is received. The base is advanced below the spreader and the lower part of the body frame is closed. Then, next, the spreader is lowered and the suspended container is placed on the relay container cradle, the grip by the spreader is released, and the spreader is retracted from the upper position of the container. Then, as shown in Fig. 3, lower the spreader suspended on the trolley of the container crane,
Pull up the container placed on the relay container cradle of the container transfer device, and then run the trolley on the container crane in the same way as in the past to lower the container to the chassis on the quay, in the meantime, The container transfer device takes out the second container from the inside of the ship by the same operation as described above. Then, the main body frame is moved toward the quay side so that the first container can be lowered onto the chassis and the trolley of the returning container crane can be encountered earlier. And at the point where we met, we stopped the traveling of the container crane trolley and container transfer device, handed over the container between the two,
The container transfer device goes to remove the third container, and the container crane goes to unload the second container onto the chassis. The same operation is repeated thereafter.

When the cargo handling is performed as described above, for the second and subsequent containers, the traveling distance of the trolley on the container crane is reduced by the distance that the container transfer device travels and approaches the quay. As a result, the cycle time of the trolley on the container crane is greatly shortened, and the working time and efficiency of container handling can be significantly shortened.

Further, 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 is sufficient to run the container transfer device in a range that the container crane cannot reach. Even in the case of a ship having a very large hull width, the container transfer device can be effectively utilized, and the work / efficiency of container handling can be significantly reduced.

"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 has a body frame 21 which is installed on the deck of the container ship 2 while having a height dimension capable of accommodating the container 3 and having a traveling function. A trolley 22 attached to the upper frame 21a of the main body frame 21, a spreader 23 that is provided on the trolley 22 so as to be able to move up and down, and suspends the container 3; It is configured to include a pair of relay container cradle 24a and 24b that are arranged as possible.

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 provided near the container loading / unloading hatch on the deck of the hull. When the traveling wheels 21c are set on the laid rail 25 and driven by a drive device (not shown), the vehicle travels along the rail 25. The rail 25 is extended along the width direction of the hull,
With this rail 25, the main body frame 21 can be moved in the width direction of the hull, and as a result, it can run under the trolley 8 of the container crane 1 installed on the quay 4 side in the same direction as the trolley 8. . The main body frame 21 or the container transfer device 20 itself is set on the deck by the container crane 1 on the quay side.

Two trolleys 22 are provided, one at each end of the upper frame 21a, and these trolleys 22 can be moved toward or away from each other on the upper frame 21a by the traveling device 22a, so that they can travel freely. It is possible. The spreader 23 is suspended by these two trolleys 22. The upper frame 21
a extends along the front-rear direction of the hull, so that each trolley 22 travels along the front-rear direction of the hull.

A hoisting machine 27 for hoisting the spreader 23 is installed on each trolley 22.

The relay container cradle 24a, 24b can be moved forward and backward in the width direction of the hull by a drive device 28 that uses a transmission mechanism such as a rack and pinion, and when it moves outward, the lower part of the main body frame 21 is opened. The container 3 can be inserted therethrough, and when the container 3 is advanced inward, the lower part of the main body frame 21 is closed to support the container 3 that has been pulled up.

The container transfer device 20 as described above is installed and used on the deck of the container ship 2 which is docked, and performs a series of cargo handling in cooperation with the container crane 1 provided on the quay 4 side.

The body frame 21 of this container transfer device 20 is a spreader
Arranged on rails 25 and the like laid on the deck so that the 23 can move in and out of the loading place of the container 3, and can be moved in the width direction of the hull by the traveling means equipped on the main body frame 21. .

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 trolley is further moved.
The position of 22 is adjusted and the spreader 23 is located right above the container 3 to be unloaded. Then, the relay container cradle 24a, 24b is retracted from below the spreader 23 so that the bottom of the main body frame 21 is opened. Then, next, the spreader 23 is lowered to grip the containers 3 loaded in the container ship 2 as shown in FIG. Then, as shown in FIG. 1, the spreader 23 is lifted to pull up the container 3, and when the lower end position of the container 3 comes to a position slightly above the relay container cradle 24a, 24b, lift the spreader 23. Stop and let the relay container cradle 24a and 24b advance below the spreader 23 to make the main frame
Close the bottom of 21. Then, next, the spreader 23 is lowered and the suspended container 3 is placed on the relay container pedestals 24a and 24b, then the gripping by the spreader 23 is released, and the spreader 23 is retracted from the position above the container 3. . Then, as shown in FIG. 3, the spreader 23 suspended from the trolley 8 of the container crane 1 is lowered and placed on the relay container cradle 24a, 24b of the container transfer device 20. The container 3 is pulled up, and then 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 4, while the container transfer device 20 operates in the same manner as described above. By the second container 3
Is removed from the hull. Then, further, the main body frame 21 is moved toward the quay side so that the first container 3 can be dropped onto the chassis 18 and can meet the trolley 8 of the container crane 1 returning at an earlier time.
And at the spot we met, trolley 8 on container crane 1
And the container transfer device 20 is stopped to transfer the container 3 between them, the container transfer device 20 takes out the third container 3, and the container crane 1 transfers the second container 3 onto the chassis 18. I'll go down. The same operation is repeated thereafter.

When the cargo handling is performed as described above, for the second and subsequent containers 3, the traveling distance of the trolley 8 on the container crane 1 by the distance that the container transfer device 20 travels and approaches the quay 4. Since the cycle time of the trolley 8 on the container crane 1 is significantly shortened, the working time and efficiency of container handling can be significantly shortened.

Further, if such a container transfer device 20 is used, even in the case of a ship whose hull width exceeds the maximum value of the Panamax type, the container transfer device 20 is allowed to travel within a range that the container crane 1 cannot reach. Even if the vessel has a very large hull width, the container transfer device 20 can be effectively used, and the work / efficiency of container handling can be significantly reduced.

"Effects of the Invention" As is apparent from the above description, the container transfer device of the present invention can carry out and carry in a container into a container ship by using a spreader equipped in the device, and , The container can move freely on the container ship, and if the device traverses the ship to the quay side and the container is transferred to the container crane installed on the quay side closer to the quay side, the container crane will be moved by that much. Since the mileage of the trolley is reduced, and the cycle time of the trolley on the container crane is significantly reduced, it is possible to significantly reduce the working time and efficiency of container handling.

Further, 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 is sufficient to run the container transfer device in a range that the container crane cannot reach. Even in the case of a very wide ship, the container transfer device can be effectively used, and the work / efficiency of container cargo handling can be significantly reduced.

[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. 20 …… Container transfer device, 21 …… Main body frame, 21a …… Upper frame, 22 …… Trolley, 23 …… Spreader, 24a
・ 24b …… Relay container cradle, 25 …… Rail.

Claims (1)

[Claims] 1. A main body frame (21) having a height dimension capable of accommodating a container (3) and having a traveling function in the width direction of the hull, which is installed on a deck of a container ship (2), A trolley (22) attached to the upper frame (21a) of the main body frame so as to be able to travel in the front-back direction of the hull, a spreader (23) provided on the trolley so as to be able to move up and down, and to suspend the container, and the main body frame. A container transfer device equipped with a relay container cradle (24a, 24b) that is arranged so that it can be moved forward and backward in a horizontal direction so that the lower part of the container can be opened and closed and that can be loaded with a container when advancing.