TWI688518B - Arrangement for supporting containers to be transported on the deck of a cargo ship - Google Patents

Abstract

Arrangement for supporting containers (5) to be transported on the deck of a cargo ship, which arrangement comprises hatch covers (4) to be placed on top of the cargo compartments (3) of the cargo ship, on top of which hatch covers containers (5) are transported, and which arrangement also comprises lashing bridges (1) that are transverse to the cargo ship, which are fixed to the transverse members (2) between the cargo compartments (3), and on which lashing bridges (1) the containers (5) are supported with lashing bars (6), and which hatch covers (4) are disposed between the lashing bridges (1) in such a way that they can be lifted off and lowered back into their positions. The invention is implemented in such a way that the ratio of the greatest width (L) of the support structures of a lashing bridge (1) disposed on a transverse member (2) to the width (B) of the transverse member is at least 0.8 at one or more points of the lashing bridge.

Description

Equipment for supporting containers to be transported on the deck of a cargo ship

The subject of the present invention is equipment for supporting a container to be transported on the deck of a cargo ship. The equipment includes a hatch cover to be placed on top of the cargo compartment of the cargo ship, and the container is transported on top of the hatch cover; The equipment also includes a lashing abutment transverse to the cargo ship, which is a transverse member fixed between the cargo compartments, and the container is supported on the lashing abutment with a lashing rod, and the hatch cover is arranged on the lashing abutment The intermittent way allows them to be lifted and lowered back to their position.

On cargo ships, the containers are transported in the cargo compartment under the hatch cover and on the deck on the top of the hatch cover, forming many ranks and also forming many layers one on top of the other. There are guide rails in the cargo compartment where the containers are supported when they are at sea. On the deck is the removable hatch, which is used to close the stable underneath. The container above the deck is transported on top of the hatch cover. The lateral support structures for the containers on the deck (so-called pull-over abutments) must be installed away from each other so that the hatch covers can With regard to unloading and loading containers on board, cranes are used to remove and lower back.

After the containers have been loaded onto the ship, at least some of the containers on the top of the hatch cover are tied at their ends and fixed to the lashing abutments with tie rods and elastic nuts. Each tie rod is fixed at one corner of the container with one end thereof, and is fixed to the elastic nut with the other end. The elastic nut is in turn fixed to the tension abutment with the other end. The fixing is tightened by rotating the elastic nut.

When the ship leans on the turbulent sea, the forces exerted by the tie rods of the container longitudinally, transversely, and perpendicular to the ship act on the tie bridge abutments.

In terms of size, the type of lashing abutments known in this technology is that their support structure on the members between the cargo compartments is narrower than the width of the members under the lashing abutments (in other words, the structure of the abutment is on the ship Is shorter in the longitudinal direction). The reason is that the space for the hatch cover is reserved in the conventional structure-the hatch cover stays supported on the same member.

For example, the known drawstring abutment equipment is proposed in the following patents: Korean Patent No. 20070115383 and European Patent No. 0815004.

Due to the narrower tie-down abutments of the earlier solution, their structure became cumbersome in order to achieve sufficient strength. In addition, the vibration of the hull caused by the operation of the ship's engine may cause strength problems and vibration problems in the conventional cable-stayed abutment structure.

The object of the present invention is to achieve better equipment for supporting containers to be transported on the deck of a cargo ship than before. The apparatus according to the invention is characterized in that the ratio of the maximum width of the supporting structure of the lashing abutment arranged on the cross member to the width of the cross member is at least 0.8 at one or more points of the lashing abutment.

A preferred embodiment of the apparatus according to the invention is characterized in that the ratio of the maximum width of the support structure of the lashing abutment arranged on the cross member to the width of the cross member is at least 1 at one or more points of the lashing abutment .

Another preferred embodiment of the device according to the invention is characterized by making the necessary recesses in the hatch cover at the point of the supporting structure of the lashing abutment, which is compatible with the lashing abutment.

A further preferred embodiment of the device according to the invention is characterized in that the hatch cover is provided with a bracket extending on the cross member.

With the wider structure according to the present invention, the cable-stayed abutment can be made lighter than before, while it is possible to reduce the harmful tendency of the cable-stayed abutment to vibrate. The manufacture of the structure is not expensive, and it becomes possible to implement a pull-over abutment higher than before with the structure according to the invention.

1‧‧‧Tie bridge abutment

2‧‧‧cross member

3‧‧‧Cargo compartment

4‧‧‧ hatch cover

5‧‧‧Container

6‧‧‧Tie rod

7‧‧‧Sag

B‧‧‧Width of cross member

L‧‧‧The width of the abutment

In the following, the present invention will be described in detail with reference to some preferred embodiments with reference to the accompanying drawings, in which: FIG. 1 presents a portion of a conventional cable tie abutment, hatch cover and container stack when connecting two cable tie rods; Figure 2 presents the entire conventional cable-stayed abutment and a stack of cargo containers stacked on top of the hatch cover; Figure 3 presents the conventional cable-stayed abutment and the container supported on it, viewed from the lateral direction of the ship; Figure 4 presents The invention of the cable-stayed abutment and the container supported thereon is seen from the lateral direction of the ship; FIG. 5 presents a simplified perspective view of the recess of the hatch cover and the support structure of the cable-stayed abutment extending therein.

Figures 1 to 3 present the prior art, so these will not be described in more detail here. Their purpose is to demonstrate the current state of this technology. FIG. 1 therefore presents a part of the lashing abutment 1 on which certain containers 5 are supported with ties 6. The container stack is on top of the hatch cover 4. The container is also transported in the cargo compartment under the hatch cover. The abutments have different heights. Typically, they extend from the open deck height of the ship to the height of two, three or four containers. When the ship is sailing at sea, the container stack exerts a large force on the tie rods 6 fixed to the containers and in turn the tie bridge abutments 1. These forces are transmitted into the hull via the structure of the abutment (entering the cross member 2).

Figure 2 shows that the lashing abutment 1 extends from one side of the ship to the other, ie the end of the lashing abutment rests on the longitudinal member of the ship or on the side skeleton structure. The drawstring abutment is supported on the top of the cross member 2 between the cargo compartments. The present invention is limited to the cargo compartment of the pull abutment And the area of the hatch.

Figure 3 presents the pull-up abutment 1, which is viewed from the lateral direction of the ship. It can be seen that the maximum width of the abutment bridge is significantly narrower than the cross member 2 between the cargo compartments 3.

1。於此情形，顯然習用的艙口蓋無法安裝到其位置，因為適合它的承受表面將不維持在橫向構件2上。 Figure 4 presents the solution according to the invention. Here, the width L of the abutment is larger than before. It is advantageous that the supporting structure of the abutment is as wide as possible, especially for transmitting the forces in the longitudinal direction of the ship into the cross member 2. The width of the cross member between the cargo compartments 3 is marked with the letter B on the top supporting the pull bridge. The present invention is characterized in that L/B is at least 0.8. The following types of embodiments are also possible: the width of the supporting structure of the pull-over abutment is equal to or even greater than the width B of the cross member, in other words L/B

1. In this case, it is obvious that the conventional hatch cover cannot be installed in its place because the bearing surface suitable for it will not be maintained on the cross member 2.

Due to the wider support structure of the lashing abutment, a depression 7 is made in the hatch cover at the point of the support structure of the lashing abutment. The supporting structure of the pull-over abutment is arranged at the concave point of the hatch cover, and when the hatch cover is lifted by a crane, it can simultaneously function as a guide column. In addition, the function of these structures can be used as a horizontal limiter for the hatch cover, that is, as the ship makes way and when the ship is inclined, the support structure keeps the hatch cover in the correct position on the hatch fence.

It is also possible that the length of the hatch cover is short; in this case, it must for example be provided with a bracket (not shown in the figure) which extends above the cross member 2.

It is obvious to those skilled in the art that the present invention is not limited to the above-mentioned embodiment, but that it can be changed within the scope of the request items presented below. Therefore, for example, in addition to the plate structure and the box structure, the tube profile and/or the rod can also be used to pull the supporting structure of the abutment. Similarly, in addition to the structure according to the invention, it is also possible to use a narrow lateral support structure for the same cable-stayed abutment. The lashing abutment includes at least one element according to the invention.

Features that may be proposed in the narrative in conjunction with other features can be used separately from each other if necessary.

1‧‧‧Tie bridge abutment

2‧‧‧cross member

3‧‧‧Cargo compartment

4‧‧‧ hatch cover

5‧‧‧Container

6‧‧‧Tie rod

7‧‧‧Sag

B‧‧‧Width of cross member

L‧‧‧The width of the abutment

Claims (3)

A device for supporting a container (5) to be transported on the deck of a cargo ship, the device comprising a hatch cover (4) to be placed on top of the cargo compartment (3) of the cargo ship, and such containers (5) ) Is transported on top of the hatch covers, and the equipment also includes a lashing abutment (1) transverse to the cargo ship, which is a transverse member (2) fixed between the cargo compartments (3), And the containers (5) are supported on the lashing abutments (1) by ties (6), and the hatch covers (4) are arranged between the lashing abutments (1) So that they can be lifted and lowered back to their position; the device is characterized by the maximum width (L) of the support structure of the pull bridge abutment (1) arranged on the cross member (2) to the width of the cross member The ratio of (B) is at least 0.8 at one or more points of the lashing abutment; and at that point of the supporting structures of the lashing abutment (1), it is necessary to make in the hatch cover (4) The depression (7), which is compatible with the pulling bridge abutment (1). The device according to item 1 of the patent application scope, in which the maximum width (L) of the support structure of the pull bridge abutment (1) disposed on the cross member (2) to the width (B) of the cross member The ratio is at least 1 at one or more points of the pull bridge. The device according to item 1 or 2 of the patent application, wherein the hatch cover (4) is provided with a bracket extending on the cross member (2).

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