JPH0768031B2 - Container transfer equipment for container ships - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION “Industrial field of application” The present invention relates to a container crane installed on a quay when loading and unloading the container ship with the container crane. The present invention relates to a container transfer device that transfers on the deck of a container ship while delivering it.

"Prior Art" Conventionally, when cargo handling is performed between a quay and a docked container ship, for example, a container crane as shown in Fig. 6 is used. This container crane 35 is permanently installed on the quay 3, and a horizontal girder is supported by a support leg 19 movable along the quay 3 toward the sea side, and at the tip of the girder 20, A boom 21 is vertically rotatably connected so as to extend its length, and a trolley 22 that moves along the girder 20 and the boom 21 is provided with a container suspender 23. Is provided with a relay stand 36 for receiving the container 6 and an auxiliary girder 37 horizontally arranged above the relay stand 36.
An auxiliary trolley 38 for transferring the container 6 is movably supported between the relay stand 36 and the chassis 24 on land.

Then, with the boom 21 of the container crane 35 placed above the container ship 4 docked as shown in FIG. 6, the trolley 22 is placed along the boom 21 and the girder 21.
While reciprocating, the containers 6 on the container ship 4 are lifted one by one and transferred to the relay stand 36, and sequentially transferred from the relay stand 36 to the chassis 24 by the auxiliary trolley 38.

[Problems to be Solved by the Invention] However, with such a technique, as shown in FIG. 6, the auxiliary trolley 38 reciprocates a short distance between the relay stand 36 and the chassis 24. On the other hand, the trolley 22 moving along the girder 20 and the boom 21 reciprocates over a long distance between the quay 3 and the side end of the container ship 4, so that the trolley 22 is on the container ship 4. The time from when the container 6 is positioned above the container 6 to when the lifted container 6 is transferred to the relay stand 36 and returns to the container ship 4 again and is positioned above the container 6 to be transferred next (hereinafter, The time required for one round trip is called cycle time)
However, it becomes longer than the cycle time of the auxiliary trolley 38, so that the working time as a whole is determined by the cycle time of this trolley 22, and it is easy to prolong the working time and the cycle time of both trolleys 22 and 38 is increased. The difference causes a long waiting time in the auxiliary trolley 38. in this case,
It is possible to increase the traveling speed of the trolley 22, but there is a limit in terms of design. In addition, in general, this type of container crane is designed such that the length of the boom 21 is the maximum width of a so-called Panamax type container ship, and the boom 21 is closer to a container ship having a wider width. There is also a problem that the efficiency of the work is significantly deteriorated because it does not reach the end.

The present invention has been made in view of the above circumstances, shortens the container transfer distance handled by the container crane, shortens the cycle time thereof, and improves the efficiency of the work as a whole to shorten the cargo handling time, and An object of the present invention is to provide a container transfer device that does not impair the efficiency of cargo handling even in the case of a container ship with a wide hull.

"Means for Solving Problems" The present invention is a container transfer device for transferring on a deck of a container ship while delivering a container to and from a container crane so as to take charge of a part of cargo handling work, It has a gate-shaped frame that runs across one of the hatches of the container ship on the partition wall of the hatch in the width direction of the container ship, and a container grip that is suspended by a hoisting machine above the gate-shaped frame. And a container cradle which is located below the spreader and between the plurality of legs of the gate-shaped frame to relay and transfer the container to and from the container crane.

[Operation] The transfer device of the present invention is mounted on a deck of a container ship in a state of straddling a hatch, and when the lower part of the spreader is opened while the gate frame is relatively moved in the horizontal direction, The spreader lifts and lowers the container to and from the container ship, and transfers the container between the spreader and the cradle.
The container crane is used to lift and lower the container from the cradle. While passing the container in this way, traveling in the width direction of the container ship,
While carrying the container transfer work on the container ship and moving the relay position of the container transferred between the container crane and the container crane every time the container is loaded and unloaded, the container loading position, etc., which changes sequentially by the loading and unloading, can be achieved. Accordingly, the container can be relayed at a position where the difference between the cycle times of the container crane and the transfer device itself is minimized, and the standby time for relaying the two can be shortened.

[Embodiment] An embodiment of the container transfer apparatus of the present invention will be described below with reference to FIGS. 1 to 5.

1 to 3 show an embodiment of the present invention,
In the figure, reference numeral 1 indicates a transfer device according to the present invention, and reference numeral 2 indicates a container crane arranged on the quay 3.

The transfer device 1 has a gate-shaped frame 7 having a size capable of straddling a container 6 loaded on a deck 5 of a container ship 4. That is, in the gate-shaped frame 7, two legs 7a, which are higher than the loading height of the container 6 on the deck 5, are arranged on the left and right with a space larger than that of the hatch 8 of the container ship 4, and A horizontal beam 7b is provided in a frame shape so as to connect the upper ends of the legs 7a to each other,
Wheels 9 are arranged at the lower ends of the legs 7a so that they can travel horizontally along the arrangement direction of the two legs 7a, and are driven by a drive mechanism 10. In addition,
The two legs 7a have a space between which two containers 6 can be arranged with a margin therebetween.

Further, rails 11 are laid along the lengthwise direction on both horizontal beams 7b along the traveling direction of the portal frame 7, and a trolley 12 is laid on the rails 11 so as to straddle them. A hoisting machine 13 is movably mounted, and a hoisting machine 13 is provided in the center of the trolley 12, and a spreader 14 that holds the container 6 is provided in a suspended state on the hoisting machine 13. On the other hand, a container pedestal 15 is horizontally fixed to the lower ends of the legs 7a of the gate-shaped frame 7 so as to integrally connect them, and one half of the pedestal 15 is notched so as to be cut out. Notch large enough to allow the container 6 of the vehicle to be placed between the legs 7a
16 are provided.

And the partition walls 17 on both sides of the hatch 8 of the container ship 4
On the deck 5 of the rail, rail along the width direction of the container ship 4
18 is laid, and the transfer device 1 is mounted on the rail 18 so as to straddle the hatch 8.

In addition, to supplement the description of the container crane 2, in the example of the container crane 2, a horizontal girder 20 is supported by a support leg 19 movable along the quay 3 toward the sea side. Along with the tip of the girder 20,
A boom 21 is vertically rotatably connected so as to extend its length, and a trolley 22 moving along the girder 20 and the boom 21 is provided with a suspending tool 23 for gripping the container 6. ing. Of course, it is also possible to use the container crane 35 having the relay stand 36 and the auxiliary trolley 38 as shown in FIG.

Next, a case where the container 6 on the deck is loaded using the transfer device 1 and the like configured as described above will be described.

As shown in FIG. 3, the boom 21 of the container crane 2 is arranged above the docked container ship 4, and the transfer device 1 is mounted on the container ship 4. Then, as shown in FIG. 1, the transfer device 1 is provided with a notch 16 for the hoist 13.
With the container 6 loaded on the deck 5 in such a state that it is supported above, straddle it by inserting it between the notches 16 and suspend one container 6 from above with the spreader 14, and then trolley 12 The container 6 is placed on the cradle 15 by moving it above the cradle 15. Next, traveling in the width direction of the container ship 4 toward the quay 3 side, transferring the container 6 to the relay position for the container crane 2, moving the trolley 12 again, and disposing the hoisting machine 13 above the notch 16. Thus, the upper part of the pedestal 15 is opened. Further, the container crane 2 lowers the suspending tool 23 from between the horizontal beams 7b opened by the movement of the trolley 12, lifts the container 6 on the pedestal 15, and moves along the boom 21 and the girder 20. Transfer to the chassis 24 on the quay 3. Then, while the container crane 2 is transferring the container 6, the transfer device 1 returns to the container storage area and transfers the next container 6. In other words, the work as a whole is divided into two on the container ship 4, and both works are performed in parallel, and the work of transferring the container 6 on the container ship 4 is burdened to the transfer device 1 among them. is there. Further, in this case, the transfer device 1 moves the relay position with respect to the container crane 2 every time one container 6 is loaded and unloaded. For example, when the container 6 is placed on the pedestal 15, Judging from its own position at that time, the current position of the trolley 22 of the container crane 2, and the place where the container 6 to be transferred next is placed, the container crane 2 and the transfer device 1 itself from that point on The relay position with the smallest difference in cycle time is set, and the relay position is moved to that position. When the loading and unloading of the container 6 in one hatch 8 is completed, the transfer device 1 is moved to another hatch 8 by the container crane 2.

That is, the transfer device 1 takes charge of the work on the container ship 4 among the two container transfer operations, thereby shortening the container transfer distance by the container crane 2 to, for example, about half of the total, and The cycle time can be shortened so that the cycle time by the container crane 2 can be brought close to the cycle time of the transfer device 1 itself on the container ship 4, and every time each container 6 is loaded, the container storage space that changes sequentially by the loading and unloading is performed. By setting an optimal relay position according to the loading position of the container 6, the standby time for relay can be shortened and the work efficiency can be improved.

4 and 5 show another embodiment of the present invention, in which the same parts as those in FIGS. 1 to 3 are designated by the same reference numerals for the sake of omission of description. The transfer device 30 includes a hoisting machine 13 fixed to the horizontal beam 7b of the gate frame 7, and a pair of left and right legs 7a connected to the inside of the lower end of the leg 7a. A horizontal rail 31 of which part is projected to the outside of the gate frame 7, and a container pedestal 32 having a width slightly narrower than the space between the legs 7a can be moved by the wheels 33 on the rail 31. It is reciprocally movable between the upper end of the rail 31 and the lower position of the spreader 14. That is, contrary to the above-described embodiment, the cradle 32 is moved, and the cradle 32 is arranged on the protruding end of the rail 31 to transfer the container 6 to and from the container crane 2. Is something that can be done.

The transfer device 1 may be permanently installed on the container ship 4, or may be permanently installed on the quay 3 and mounted on the container ship 4 docked by the container crane 2. Further, in the above description, an example in which the container 6 loaded on the container ship 4 is transferred onto the quay 3 has been shown.
Of course, it is possible to transfer from the quay 3 to the container ship 4 by the reverse procedure.

"Effect of the Invention" As described above, the container transfer device of the present invention, while relatively moving the container gripping spreader and the container cradle, suspends the container by the spreader and relays it by the cradle, By traveling in the width direction of the container ship as a whole, the burden of container transfer work on the container ship is borne, so it is possible to shorten the cycle time by shortening the container transfer distance by the container crane on the quay. it can. And since the relay position by the container cradle can be moved by traveling the gate-shaped frame, every time one container is loaded,
Depending on the container loading position, etc. which changes sequentially due to the cargo handling, it is possible to set a relay position that minimizes the difference between the cycle time of the container crane and the cycle time of the transfer device itself on the container ship. It is possible to shorten the waiting time of the work, improve the work efficiency, and shorten the work time as a whole. Further, since the container is mounted on the container ship and the container is transferred on the container ship, even in the case of a container ship having a larger hull width than the existing container crane on the quay, the container crane can be used for effective cargo handling. Can be performed without impairing work efficiency. Furthermore, since it is installed on the deck while straddling one hatch, the operations of lifting and lowering the containers are stabilized, and the effects such as the accuracy of container stacking can be improved.

[Brief description of drawings]

1 to 3 show an embodiment of the container transfer device of the present invention. FIG. 1 is a front view and FIG. 2 is a view of FIG.
A sectional view taken along the line II-II, FIG. 3 is a front view showing an arrangement with a container ship or the like during cargo handling work, FIG. 4 is a front view showing another embodiment of the present invention, and FIG. Fig. 4 is a view taken along the line V-V in Fig. 4, and Fig. 6 is a front view showing a conventional container crane used for container handling work. 1 ... Transfer device, 2 ... Container crane, 3 ... Quay, 4 ... Container ship, 5 ... Deck, 6 ... Container,
7 ... Gate frame, 7a ... Legs, 7b ... Horizontal mount, 8 ...
… Hatch, 9 …… Wheels, 10 …… Drive mechanism, 11 …… Rail, 12 …… Trolley, 13 …… Hoisting machine, 14 …… Spreader, 15 …… Catch, 16 …… Notch, 17 …… Partitioner Wall, 18 ……
Rails, 19 ... support legs, 20 ... Girda, 21 ... boom,
22 …… trolley, 23 …… hanging equipment, 24 …… chassis, 30 ……
Transfer device, 31 …… rail, 32 …… cradle, 33 …… wheel.

Claims (1)

[Claims] 1. When transferring a container (6) to a container ship (4) docked by a container crane (2) installed on a quay (3), the container is transferred to and from the container crane. While being a container transfer device for transferring on the deck (5) of a container ship, it travels across the hatch (8) of the container ship on the partition wall (17) of the hatch in the width direction of the container ship. And a container-holding spreader (14) suspended from the hoisting machine (13) on the upper part of the portal frame, and a plurality of the bottom frame of the spreader. A container transfer device (15, 32) disposed between the legs (7a) of the container and relaying and transferring the container to and from the container crane.