JPH0340868Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] The present invention relates to a derrick used for loading and unloading containers on ships, etc., and in particular to a derrick boom support for fixing the derrick boom when the derrick is not in use. Regarding equipment.

[Prior art and its problems]

Derricks are generally used to load and unload containers on ships, and these derricks move a derrick boom whose base end is pivotally attached to a support on the ship by expanding and contracting a wire rope. The hook is raised and lowered by a wire rope via a pulley supported by the derrick boom.

In such a derrick, the boom is
It must be stably supported when not in use, but conventionally, for example, a boom support was provided protruding from the upper end of a column erected on the deck of a ship, and the tip of the derrick boom was laid down almost sideways by this boom support. supported the department.

However, in such conventional derrick boom support devices, the length of the column is fixed, and furthermore, the length cannot be increased too much because increasing the length would impede loading and unloading of containers.
On the other hand, in order to support the derrick boom by the boom support part with the derrick boom lying almost sideways, in order to avoid contact between the derrick boom and the container, the containers in the extension range of the derrick boom when supported by the boom support part must be Therefore, there are containers that cannot be loaded onto the ship because they support the derrick boom, even if they can be loaded on the ship itself, resulting in a problem in that the container loading capacity on the ship is reduced. Ta.

[Purpose of invention]

The present invention was made in order to overcome the problems with the conventional devices described above, and aims to provide a derrick boom support device that prevents the support of the derrick boom from affecting the loading of containers. .

[Summary of the idea]

The present invention is a derrick boom support device that supports the tip of a derrick boom that lifts and moves a container. A protruding derrick boom support part;
At least two wire ropes stretched between the base and the deck and pulling the base from different directions, another wire rope stretched between a pair of adjacent columns, and a wire rope stretched between the columns and the deck. and another wire rope that pulls the support column in a direction different from the direction in which the other wire rope is stretched between a pair of adjacent support columns.

With this configuration, the base and the support can be stably held under tension, so the support can be erected on the topmost container to stably support the derrick boom when not in use. .

[Example of idea]

The present invention will be explained below with reference to embodiments shown in the drawings.

FIG. 1 shows the derrick boom support device 1 of the present invention mounted on containers 2, 2, . ing. As shown in FIGS. 2 and 3, this base 3 has 4
The bottom surface of this base 3 has positioning recesses 4', 4' formed in advance at the corners of each container 2. Four protrusions 4, 4, . . . , which can fit into the . Further, a frame-shaped bracket 5 for connecting a wire rope, which will be described later, is protruded from the lower surface of the base 3.

A cylindrical socket 6 is projected from the center of the upper surface of the base 3, and this socket 6 is supported by a bracket 7 attached to the socket 6 and the base 3. A lower end of a column 8 is fitted into the socket 6 relatively tightly, and a column 8 is fitted into the upper end of the column 8.
A support 9 with a smaller diameter is provided in a protruding manner, and a holding band 10 as an example of a derrick boom support is provided in a projecting manner on the upper part of the support 9. This retention band 1
As shown in FIG. 4, 0 has a semi-circular fixed band 11 which is protruded from the support 9 so that the upper part is open, and which is pivotally connected to the fixed band 11 by a hinge 12 so as to be openable and closable. The fixing band 11 and the opening/closing band 13 are arranged so as to form an annular shape as a whole when the opening/closing band 13 is closed.
Further, a screw shaft 14 is pivotably attached to the end of the fixing band 11 on the opposite side to the hinge 12, and this screw shaft 14 is connected to the U of the fixing plate 15 provided protruding from the opening/closing band 13. It is adapted to fit into a shaped recess (not shown). Therefore, the screw shaft 1
The opening/closing band 13 is fixed to the fixing band 11 by fitting the thumbscrew 4 into the U-shaped recess of the fixing plate 15 and then screwing the wing screw 16 screwed onto the screw shaft 14 to press it against the fixing plate 15. Ru.

Returning to FIGS. 1 and 2, a plurality of universal rings 17, 17... are protruded from the deck of the ship, and one or more shackle 18 is attached to each universal ring 17. There is. Each shackle 18 is connected to a wire rope 2 via a turnbuckle 19 and another shackle 18.
A thimble 21 to which 0 is attached is connected, and another thimble 21 is attached to the tip of the wire rope 20. As shown in detail in FIG. 1, the two wire ropes 20 are attached from different directions by the shackle 18 to the bracket 5 of the base 3 of the derrick boom support device 1 seated on the four containers 2. The derrick boom support device 1 is held in place by being stretched in an inclined manner and strongly tensioned by turnbuckles 19, respectively. Further, a wire rope 20' having the same structure as that described above is stretched between the pair of adjacent derrick boom support devices 1, 1 via eye plates 22 protruding from the respective pillars 8. ,
Another eye plate 22 is protruded from the back of the eye plate 22 on each support column 8, and this eye plate 22 and the universal ring 1 on the deck
Between 7 and 7, there is a wire rope 2 having the same structure as described above.
0'' is set up.

According to the above-described configuration, the derrick boom support device 1 seated on the container 2 has its base 3
are pulled in different directions by the two wire ropes 20, 20, and the struts 8, 8 of the pair of adjacent derrick boom support devices 1, 1 are pulled in the direction toward each other by the wire rope 20',
Moreover, since each support column 8 is also pulled in the opposite direction by another wire rope 20'', each derrick boom support device 1 is stably held on the four containers 2.

Therefore, if the support 8 is erected on top of the highest container 2 loaded into the ship and the holding band 10 on the support 8 supports the derrick boom when not in use, Since the derrick boom will always be located on the topmost container 2, there will be no container 2 that comes into contact with the derrick boom to support the derrick boom and gets in the way. can be loaded.

As described above, according to this embodiment, the derrick boom support device 1 can be stably held on the topmost container 2, so supporting the derrick boom when not in use does not affect the loading of the container 2. Never give up.

[Effect of idea]

As explained above, the derrick boom support device according to the present invention includes a base that can be seated on a container, a column erected on the base, and a derrick boom support that protrudes from the column. Department and
At least two wire ropes stretched between the base and the deck and pulling the base from different directions, another wire rope stretched between a pair of adjacent columns, and a wire rope stretched between the columns and the deck. and another wire rope that pulls the support column in a direction different from the direction that is pulled by the other wire rope stretched between a pair of adjacent support columns, so that the wire rope is not placed on the deck of a ship but A support can be erected on top of the upper container to stably hold it.
Therefore, the derrick boom can be supported when not in use by freely loading containers and erecting supports without considering support for the derrick boom. As a result, an excellent effect can be achieved in that a large amount of containers can be loaded.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of the derrick boom support device according to the present invention, FIG. 2 is an enlarged right side view of the main part of FIG. 1, FIG. 3 is a plan view of FIG. 2, and FIG. The figure is an enlarged view of the retaining band of FIG. 1. DESCRIPTION OF SYMBOLS 1... Derrick boom support device, 2... Container, 3... Base, 6... Socket, 8... Support column,
10... Holding band, 20, 20', 20''... Wire rope.

Claims (1)

[Scope of utility model registration request] A derrick boom support device that supports the tip of a derrick boom that lifts and moves a container includes a base that can sit on the container, a support that stands on the base, and a support that projects from the support. a derrick boom supporter, at least two wire ropes stretched between the base and the deck and pulling the base from different directions, and another wire rope stretched between a pair of adjacent supports;
A derrick comprising a further wire rope stretched between the strut and the deck and pulling the strut in a direction different from the direction pulled by the other wire rope stretched between a pair of adjacent struts. Boom support device.