JP2012051717A - Method of improving loading ratio of bulk ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve a loading ratio of a bulk ship for loading irregular cargoes.SOLUTION: This method is used for improving a loading ratio of a bulk ship for loading irregular cargoes. In the method of improving the loading ratio of a bulk ship, a multistage rack having a plurality of stages of floor surfaces supported by four posts is installed in a hold of the bulk ship; the uppermost stage of the multistage rack is formed into a structure having only a floor surface without having any post; an upper space in the hold of the bulk ship is effectively utilized by loading and fixing irregular cargoes on the respective floor surfaces including the uppermost stage of the multistage rack; insertable/extractable posts having a plurality of types of lengths are preferably used for the four posts; and the lengths of the posts are selected in accordance with the heights of the irregular cargoes.

Description

The present invention relates to a method for improving the loading rate of a bulk carrier.
Specifically, for example, the present invention relates to a method for improving the loading rate of a bulk carrier that loads irregular cargo.

When loading irregular shaped cargo such as steel frames on a bulk carrier, if you want to load similar cargo on the top of the cargo, you must be able to safely load the top cargo using wood or other materials. In order to create this state, many materials and work man-hours must be invested, and it is rare to carry out multi-stage loading because it leads to longer ship stagnation time. In other words, the upper space of the cargo, that is, the cargo, was not utilized, and as a result, the loading rate of the bulk carrier was lowered.

In addition, when this irregularly shaped cargo is temporarily placed on a port site for ship loading, a large storage area is required due to the difficulty of multistage loading.

Various proposals have been made for improving the cargo loading rate. For example, Japanese Patent Laid-Open No. 5-16875 (Patent Document 1) discloses a container having a length, a width, and a height having a free size. On the other hand, on the bottom surface of each container, a concave portion of the same size having a square shape and having an inclined portion in the peripheral portion is formed at regular intervals, and a convex portion and an inclined portion that can be fitted to the concave portion and the inclined portion are formed. The container is formed on the upper surface of the container, the bottom plate of the cargo hold, and the upper surface of the hold door, and when the container is loaded, the above-mentioned convex part (including the inclined part) and the concave part (including the inclined part) are fitted to each other. Describes a method of loading a large number of containers in a container carrier's hold, which can prevent horizontal movement and overturning of the container, which eliminates the need for conventional guide rails and allows loading of containers of any size.

The method described in Patent Document 1 is a method for relaxing the conditions related to the container loading method, and has a feature that it allows the use of a container having a free size and can easily prevent movement / falling. .

However, in the method of Patent Document 1, it is necessary to create a container suitable for the size of the cargo to be loaded, and the structure of the ship is also a dedicated ship having a fitting structure on the bottom and the hull cover according to this container. There was a problem that it was necessary.

Japanese Patent Application Laid-Open No. 11-100108 (Patent Document 2 below) discloses that when a rack is used, each rack is stacked in a state where the lower frame of the upper rack is placed on the pallet table of the lower rack. Simplify the work of stacking pallet loads by storing each rack in the state where the lower frame and each column of the upper rack are stacked on the lower frame and each column of the lower rack when in use How to do is described.

This rack is a kind of racks and racks for stacking pallets described in Patent Document 2, and is designed to realize compact storage when not in use.

However, the method of Patent Document 2 has a problem that it is not suitable for loading an undefined large-sized cargo because the cargo cannot be loaded across a plurality of racks at the uppermost stage of the rack.

Japanese Patent Laid-Open No. 5-16875 Japanese Patent Laid-Open No. 11-100108

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the prior art as described above and to provide an improvement in the loading rate of bulk ships that load irregular cargo.

The present invention has been made as a result of intensive studies in order to solve the above-mentioned problems, and the gist of the present invention is the following contents as described in the claims.
(1) A method for improving the loading rate of a bulk carrier for loading irregular shaped cargo, wherein a multi-stage rack having a plurality of floors supported by four columns is installed in the cage of the bulk carrier. The uppermost stage of the multi-stage rack has a structure having only a floor surface without a support, and by loading and fixing an irregular shaped cargo on each floor surface including the uppermost stage of the multi-stage rack, A method for improving the loading ratio of a bulk carrier, characterized by effectively utilizing the upper space.
(2) The four struts may be a plurality of lengths that can be inserted and removed, and the length of the struts is selected according to the height of the irregular cargo. The method for improving the loading rate of the bulk carrier described.

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According to the invention of (1), the uppermost stage of the multi-stage rack has a structure having only a floor surface without a support, and by loading and fixing the irregular shaped cargo on each floor surface including the uppermost stage of the multi-stage rack, It is possible to make effective use of the upper space inside the bulk of a bulk carrier.
According to the invention of (2), since the four columns are columns of a plurality of types that can be inserted and removed, the length of the column can be selected according to the height of the irregular cargo. .

ADVANTAGE OF THE INVENTION According to this invention, since the upper space in a ship's ridge can be utilized effectively, the loading rate improvement method of the bulk loading ship which loads an irregular shaped cargo can be provided, and there exists a remarkable effect useful industrially. .

It is a figure which illustrates embodiment of the rack used for this invention. It is a loading figure which illustrates embodiment of the loading rate improvement method of the bulk carrier of this invention. It is a figure which illustrates the assembly procedure of the rack used for this invention.

The best mode for carrying out the invention will be described in detail with reference to FIGS. 1-3, 1 is a floor surface (first stage), 2 is a floor surface (second stage), 3 is a floor surface (third stage), 4 is a column, 5 is a joint part, and 6 is a wire fixing. Indicates the part.

FIG. 1 is a diagram illustrating an embodiment of a rack used in the present invention. The present invention relates to a method for improving the loading rate of a bulk carrier that loads irregular shaped cargo, and a multi-stage rack having a plurality of floors supported by four columns 4 in the ridge of the bulk carrier. The multi-stage rack has a structure having only a floor surface without a support, and the bulk carrier is loaded and fixed on each floor surface including the uppermost stage 3 of the multi-stage rack. It is characterized by making effective use of the upper space inside the cocoon.

As shown in FIG. 1, the rack used in the present invention is a multistage rack having a plurality of floor surfaces 1 to 3 supported by four support columns 4, and the uppermost stage 3 of the multistage rack has no support columns. By using a structure having only a floor surface and loading and fixing an irregularly shaped cargo on each floor surface including the uppermost stage 3 of the multi-stage rack, the upper space inside the anchor of the bulk carrier can be effectively utilized.

FIG. 2 is a loading diagram illustrating an embodiment of the method for improving the loading rate of a bulk carrier according to the present invention.
As shown in FIG. 2, by installing a large number of racks supported by four support columns 4 capable of multi-stage loading and enabling multi-stage stacking, effective utilization of the upper space in the basket can be realized. .

According to this method, it is not necessary to develop a container that matches the size of the cargo to be loaded as in the conventional case, and the structure of the ship is also adapted to this container. high.

In addition, as shown in FIG. 2, the uppermost stage 3 of the multi-stage stacking rack has a structure having only a floor surface without a support, so that cargo having a length, height and width that cannot be loaded on one rack can be stored in a plurality of racks. Can be loaded across the rack, so that large cargo that cannot fit on the rack can be loaded.

FIG. 3 is a diagram illustrating the procedure for assembling the rack used in the present invention.

As shown in FIG. 3 (a), the four struts 4 are a plurality of lengths that can be inserted and removed, and the length of the struts is selected according to the height of the irregular cargo. In addition, it is possible to reduce the loss of the space in the rack.

Moreover, in order to fix the wire for lashing which fixes a cargo to a rack, it is preferable to provide the wire fixing part 6 in the lower part of each floor surface of a rack. In addition, although the material of the rack used for this invention is not ask | required, it is preferable to use the square tube or shape steel which consists of structural steel SS41 from a viewpoint of intensity | strength and versatility.

FIG. 3B is a diagram illustrating the structure of the joint portion of the rack used in the present invention.

As shown in FIG. 3B, the joint portion of the rack used in the present invention has a convex shape at the top of the support column 4 and a concave shape at the bottom of the floor surface. The support column 4 can be inserted and removed.
In addition, since there is no particular rack loading condition, it is possible to handle all normal bulk ships, and the storage efficiency at the temporary storage place before and after loading and unloading to the ship is also confirmed by using this method. It leads to improvement of area usage rate.

The method for improving the loading rate of bulk ships according to the present invention is under implementation planning, and can be used when temporarily placing irregular shaped cargoes on a port site for ship loading, so future application expansion is expected.

1 Floor (first stage)
2 Floor (second stage)
3 Floor (third stage)
4 Prop 5 Joint 6 Wire fixing part

Claims (2)

  A method for improving a loading rate of a bulk carrier for loading an irregular cargo, wherein a multi-stage rack having a plurality of floor surfaces supported by four columns is installed in a cage of the bulk carrier, The top level of the rack has a structure with only a floor surface without a support, and by loading and fixing an irregular shaped cargo on each floor surface including the top level of the multi-level rack, the upper space in the ridge of the bulk carrier is A method for improving the loading ratio of a bulk carrier, characterized by effective utilization. 2. The rose according to claim 1, wherein the four struts are a plurality of types of struts that can be inserted and removed, and the lengths of the struts are selected according to the height of the irregular cargo. A method for improving the loading rate of ships.

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