JPS60106723A - Container crane - Google Patents

Abstract

PURPOSE:To make it possible to rapidly transfer containers, by temporarily laying a container on a temporary depot carrier vehicle which is moved integrally with a container crane, and then by shifting the container onto a transfer carrier vehicle after the container is laid in position with respect to the transfer carrier adjacent to the temporary depot carrier vehicle. CONSTITUTION:Upon landing of a container, the container is unloaded onto a temporaty depot carrier vehicle 10. Then, a pressing plate 31 is actuated by a hydraulic cylinder 32 constituting a positioning device to adjustably shift the containter in the travel direction of a crane so that the container is set in position with respect to a transfer carrier vehicle 29. Then a motor cylinder 26 is operated to lift up the container by means of left and right forks 28, and thereafter a drive device 19 moves the forks 28 toward the transfer carrier vehicle 29 in order to load the container onto the transfer carrier vehicle 20. With this arrangement, it is possible to prevent the container from being deflected and to rapidly shift the container onto the transfer carrier vehicle 29.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a container crane used for cargo handling such as unloading or shipping of containers.

(Problems in the Prior Art to be Solved by the Invention) When a container is unloaded using a container crane, the container that has been lifted from the ship is unloaded onto the ground by cars, trolleys, etc.
Hereinafter, it will be referred to as a transport vehicle. ) In order to unload the load directly to the desired position above, a highly accurate positioning device was required, and the driver also required a high degree of operational skill.

In addition, it took a long time to unload the container to completely stabilize it, resulting in poor work efficiency.

Therefore, the container lifted from the ship is temporarily suspended into a container crane (main crane) and placed there temporarily, and then this container is placed on standby at the bottom of the main crane by another crane built into the main crane (child crane). A device that is suspended from a conveyor truck is being considered (Japanese Patent Laid-Open No. 58-1255).
91 Publication), this container crane has a complicated structure due to the addition of child cranes and temporary storage areas, and the rigidity of the frame of the parent crane has to be made thicker (which makes the whole structure more expensive). If the container is positioned and loaded onto a transport vehicle by hanging it, there is a risk of poor work efficiency.

(Objective of the Invention) The present invention was devised to solve the above-mentioned problems of the conventional art. By adopting a method in which the robot is positioned on the transport vehicle at the top and then transferred onto the transport vehicle, it is possible to eliminate the need for a complete steadying system, and also to be able to quickly transfer the load onto the transport vehicle. improve work efficiency, and.

The container crane of the present invention aims to reduce the burden on workers.
A positioning device for connecting temporary container storage carts that are movable in the traveling direction of the crane and capable of contacting the transport cart, and for positioning the container on the temporary storage cart with respect to the transport cart. and a transfer device for transferring a container between the transport truck and the temporary storage truck.

(Embodiment) Below, one embodiment of the present invention will be described with reference to the drawings. In the figure, 1 is a gate-shaped frame that can run on a track 5 laid along the shore m2, and 4 is a gate-shaped frame on which the frame 1 can be run. The supported girder, 5 is a trolley that can run traversely on a rail 6 laid along the girder 4, 7 is a spreader suspended from the trolley 5 via a hoisting wire 8; The container 9 is suspended from inside the ship (not shown) by the trolley 5, and the trolley rail 6
It is configured so that it can be suspended onto a temporary trolley 10 placed directly below.

Brackets 12 are provided on one leg 11 of the frame 1 at intervals in the running direction of the frame 1 (crane running direction), and the brackets 12 include a connection extending horizontally toward the temporary storage cart 10 side. A lever 15 is attached by a pin 14 so as to be able to swing up and down. The temporary storage cart 10 is attached to a connecting lever 15 by a pin 15 at the side end of the one leg portion 11 of the frame 1, and is thus connected to the frame 1 via the connecting lever 15 so as to be movable integrally with the frame 1 in the crane traveling direction. ing.

A lip groove-shaped cross section 16 extending along the width direction of the trolley and opening on the upper surface (container placement surface) side is provided in the longitudinal direction (crane running direction) central portion of the temporary storage trolley 10 and extending toward the leg portion 11 side. A transverse carriage 20 is provided within the lip groove cross section 16 and is provided with upper and lower vertical guide rollers 17 and lateral guide rollers 18, and is movable via a drive device 19. . The drive device 19 includes a pinion 2 rotatable by a motor 21 via a worm gear mechanism 22.
3 and the rack 24 with which the pinion 25 engages are connected to the lip groove cross section 16 of the traversing truck 20 and the temporary storage truck 10, respectively.
It was established at A pair of left and right cylindrical guide masts 25 are integrally provided on the traversing truck 20, and a motor cylinder 26 and a block 27 that is raised and lowered by the motor cylinder 26 are housed in the guide mast 25. The block 27 is integrally provided with a fork 28 that extends in a direction perpendicular to the crane traveling direction and toward the leg portion 11 side. In this way, the container 9 placed on the temporary cart 10 is transferred to the motor cylinder 2 via the two right and left forks 28.
6 lifts up, and the drive device 19 moves the traverse table s
20 is moved to the side opposite to the leg portion 11, and is configured to be able to be transferred onto a transport vehicle 29 which is placed in instant contact with the temporary storage vehicle 10.

In order to prevent the fork 28 from interfering with the container 9 placed on the temporary storage cart 10, the fork 28 before being lifted up can be retracted below the level of the container placement surface of the temporary storage cart 10. It is preferable that the temporary storage cart 10 is provided with a fork storage groove. Further, it is preferable that the fork 28 is provided with a claw 50 that can be raised and lowered to prevent the container from moving on the fork 28.

A suppressing plate 51 is provided at the end of the temporary storage cart 10 in the crane running direction, and is movable forward and backward by a hydraulic cylinder 52, sandwiching the container placement area and facing oppositely in the crane running direction. 1, the container 9 can be pushed in the crane traveling direction and positioned relative to the transport carriage 29. In addition, temporary storage trolley 10
A suppression plate 51 is provided at the end of the leg 11 side by a suppression cylinder 52' so as to be movable back and forth in a direction perpendicular to the crane traveling direction and toward the leg 11 side.

(Function) When unloading the container 9, the container 9 is lifted out of the ship via the spreader 7 by the trolley 5, moved to a position directly above the temporary storage trolley 10, and then loaded onto the temporary storage trolley 10. It's raining. The container mounting surface of the temporary storage trolley 10 is formed in a size large enough to cover the final amount of swing of the container 9 when unloading, and the container 9 is placed on the temporary storage trolley 10. By performing the steadying, the container 9 can be unloaded from the temporary storage cart 10 quickly.

Next, if the temporary storage cart 10 is provided with a relative position detection device for detecting the position of the transport cart 29, the positioning is performed based on instructions from the detection device, or, if not provided, based on instructions issued by the operator through visual detection. The device 51.32 is activated and the container 9 on the temporary storage trolley 10 is removed via the suppression plate 51.
The container 9 is positioned relative to the transport vehicle 29 by adjusting the movement in the crane running direction. If necessary, adjust the position relative to the fork 28 using the positioning mounts 51' and 52'. After that, the motor cylinder 26 slightly lifts up the container 9 via the left and right forks 28, and then the drive device 19 lifts the container 9 up to the fork 2B.
By moving a certain distance to the transport vehicle 29 side,
After the container 9 on the fork 2B is placed above the transport vehicle 29.

The container 9 is placed on the carrier 29 by the motor cylinder 26, and the fixed protrusion 55 protrudes from the carrier 29.
The container 9 is fixed on the carrier 29 by engaging the legs 34 of the container 9 with the legs 34 of the container 9.

In this way, the positioning device 51 provided on the temporary storage cart 10
, 52 and the transfer devices 16 to 28, the container 9 is quickly transferred from the temporary storage cart 10 to the transfer cart 29, thus completing the unloading work quickly.

The forks 28 of the transfer devices 16 to 28 are moved to the temporary storage cart 1 by the drive device 19 and motor cylinder 26 after the work is completed.
It is returned to its original position of 0.

Conversely, when loading the container 9 on the carrier 29, the container 9 is first transferred from the carrier 29 to the temporary storage carrier 10 by the fork 2B of the transfer device 16-2, and then the container 9 is transferred to the temporary storage carrier 10 by the positioning device 51. .52, positioning with respect to the spreader 7 suspended by the trolley 5 is performed. As a result, the container 9 on the temporary storage cart 10 can be suspended into the ship by the trolley 5 via the spreader 7. Since the work can be done quickly, the loading work can be completed quickly.

(Effects of the Invention) As described above, since the present invention has a structure in which a temporary trolley is connected to one leg of the crane frame, the crane frame does not become complicated as in the past, and its rigidity is improved. Not only does this eliminate the need for additional equipment, but it can also be easily applied to existing equipment. By using a temporary storage trolley to stabilize the container and positioning and transferring the container using the positioning device and transfer device provided on the temporary storage trolley, private loading onto the transport trolley can be speedily carried out. By transferring the container onto a temporary storage trolley and positioning it against the spreader ζ, the container can be quickly hoisted onto a ship, etc., reducing the burden on one worker while allowing container cranes to handle the container. Efficiency can be improved, and even if work is automated in the future, it will be easy to respond.

[Brief explanation of the drawing]

Fig. 1 is a schematic diagram showing one embodiment of the present invention, and Fig. 2 is a schematic diagram showing an embodiment of the present invention.
3 is a plan view of FIG. 2, FIG. 4 is a sectional view of FIG.
Figure 6 is a sectional view showing how the claws are attached to the fork;
FIG. 7 is a sectional view taken along the line 1 to 3 in FIG. 3. 1. Frame, 4.・・Girder% 5・・Trolley, 7・・
Spreader, 8...Hoisting wire, 9...Container, 10
・・Temporary storage trolley, 11・・Legs, 14.15・・Pins,
15...Connection lever, 16...Lip groove cross section, 17
・・Vertical guide roller, 1B・・Horizontal guide roller 0.19・・Drive device, 20・・Transverse truck, 25・・Guide mast. 26...Motor cylinder, 27...Block. 28...Fork, 29...Transportation truck, 51...Press plate, 52...Hydraulic cylinder. 1st ((1 龜・, 41Go(5th L(I j 6-6 hi; 4' 7 i''!

Claims (1)

[Scope of Claims] A temporary storage trolley for temporarily storing a container is connected to the legs of the crane frame, and is movable in the traveling direction of the crane, and is capable of instantaneously connecting a transport vehicle, and on the temporary storage trolley, A container crane comprising: a positioning device for positioning a container with respect to the transport vehicle; and a transfer device for transferring the container on the transport vehicle and the temporary storage vehicle.