JPH06298167A - Hatch cover of container ship - Google Patents

Abstract

(57) [Summary] [Purpose] A hatch cover of a container ship that can be attached to the upper surface of any container that is flush with the upper deck without being limited to the hatch combing. provide. [Structure] A plurality of containers (C) are stacked in a hatch (13) of a container ship so as to project above the hatch coaming (14), and a hatch cover (15) is provided on the top surface of the stacked containers. Hatch cover body (15
The position fixing metal fitting (22) provided on the lower surface of (a) is inserted and attached to the hole (21a) of the corner metal fitting (21) on the upper surface of the container.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hatch cover for a container ship.

[0002]

2. Description of the Related Art Generally, in a container ship, in order to prevent rainwater, wind or the like from entering the hold, a hatch serving as an entrance / exit of the hold is covered with a hatch cover. For example, the conventional hatch cover 1 is actually mounted on the hatch coaming 2 in a waterproof, weatherproof manner by fastening means (not shown) as shown in FIG.

[0003]

As shown in FIG. 6, there are two methods of carrying a container in a container ship: loading in the hold and loading on the upper deck. When the conventional hatch cover is used, the hatch cover 1 can be fixed only on the hatch coaming 2, so that a so-called coaster service for transporting the container C ... If the container C is not fully filled in the hold and must be loaded on the upper deck as well, the container C must be loaded to the predetermined height and then hatched. It is necessary to install the cover 1 at a regular position on the hatch coaming 2, stack the containers C on the hatch cover 1, and then tie the stacked container C to the hatch cover 1 to perform a troublesome work. there were.

The forecast of the weather can be easily inferred if the service is a short time such as coaster service. When the weather is mild, it is not always necessary to adopt the robust loading form as described above. In the past, since only such a stowage form could be adopted, it is the actual situation that the robust stowage form as described above is used although it is not preferable or preferable. However, since it is unavoidably required to carry out robust packing, there has been a demand for a container that can be easily packed so that labor and time can be reduced.

The present invention has been made in view of the above circumstances, and the mounting location is not limited to hatch coaming, and the mounting location can be mounted on the upper surface of any container that is flush with the upper deck. Provide a hatch cover and a hatch cover mounting structure for a container ship that can be used.

[0006]

In order to achieve such an object, a hatch cover of a container ship according to claim 1,
A hatch cover that covers the upper side of the hatch of a container ship so as to cover the upper side of the hatch, and the position fixing hardware to be inserted into the hole of the corner fitting provided on the upper surface of the container is attached to the inner lower surface of the hatch cover body. It has a structure.
Further, in the hatch cover of the container ship according to claim 2,
A plurality of containers are stacked in the hatch of a container ship so as to project above the hatch coaming, and the position fixing metal fittings provided on the bottom surface of the hatch cover body are mounted on the top surface of the stacked containers at the corners of the top surface of the container. It was configured to be inserted and attached to the hole of the metal fitting. Further, claim 3
In the hatch cover of the container ship described above, in addition to the invention of claim 2, a securing means for securing both is provided between the hatch cover body and the hatch coaming. Further, in the hatch cover of the container ship according to claim 4, in addition to the invention according to claim 2, a gutterway for rain treatment is provided at a predetermined height at an upper edge portion of the hatch cover body, and the hatch cover body has a predetermined height. Has a drainage port for removing the collected water.

[0007]

Since the position fixing metal fittings are attached to the lower surface of the hatch cover, the height position of the container does not matter as long as it is above the upper deck as long as the upper surface of the container is flush. The hatch cover can be attached to the container by inserting the position fixing metal fitting into the corner metal fitting on the upper surface of the container. This increases the degree of freedom of the hatch cover installation location, and simplifies container loading, for example, when the course service is performed and the weather is mild. Be advantageous Further, if the structure in which the hatch cover and the hatch coaming are fixed to each other by the fixing means increases the strength of the load, and even if the loading is simple, the cargo can be transported without trouble in some weather. It is also possible to stack more containers on the hatch cover as long as the hatch cover mounting strength allows.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. 1 and 2 are side sectional views showing a hatch cover and a mounting structure of the hatch cover of a container ship according to the present invention, and FIG. 2 is a perspective view showing a hatch cover and a mounting structure of the hatch cover. In the figure, reference numeral 11 is a hull, C is a container loaded in a hold, 13 is a hatch, 14 is a hatch combing, and 15 is a hatch cover.

The container C is stacked in the hatch of the ship so that the upper surface of the container C projects above the hatch combing 14, and the hatch cover 15 is attached to the upper surface of the stacked container C.

The container C has the same construction as that conventionally used, and corner fittings 21 ... Are fixed to the four corners of the upper and lower parts (see FIG. 3), and the corner fittings 21 communicate with each other. A hole 21a is formed. The vertically stacked containers C are connected to each other in the holes 21a of the corner fittings 21 by a known connecting member 20 such as a twist lock or a stacking cone. As a result, if the containers C vertically adjacent to each other are connected to each other and arranged in rows, a large block is formed as a whole.

The hatch cover 15 is mounted on the hatch coaming 14 so as to cover the hatch 13, like the conventional one. The hatch cover 15 shown here is different from the conventional one in the following three points.

First, a stacking cone 22 which is inserted into the hole 21a of the corner fitting 21 provided on the upper surface of the container C is attached to the lower surface of the hatch cover body 15a. The mounting positions of the stacking cones 22 are not limited to the four corners of the lower surface of the hatch cover body 15a, but are located directly above the corner fittings 21 of the container C depending on the position of the container C arranged below. In that case, it may be arranged in the middle part of the lower surface of the hatch cover body (see FIG. 4).

The stacking cone 22 has an engaging portion 23a formed in a substantially quadrangular pyramid shape at the center of the lower surface of a flat plate portion 23, and is attached to the hatch cover main body 15a by welding or bolting. It is carried out by an appropriate fixing means.

Another one of the characteristic parts of the hatch cover 15 is, as shown in FIG. 2, the engaging parts 25a ...
.. are formed along the lengthwise direction of the side portion of the hatch cover main body 15a in two steps vertically. The engaging portion 25a formed on the lower side of the engaging portions 25a and 25b is used as a place to which the upper end of the lashing metal member which constitutes the fastening means 26 provided between the engaging portion 25a and the hatching combing 14 is attached. Also, the upper engaging portion 25b
Is used as a place to which the lower end of the lashing metal member forming the lashing means 27 for lashing the container C fixed on the hatch cover 14 is attached.

The fastening means 26 for fastening the hatch combing 14 and the hatch cover 15 and the fastening means 27 for fastening the hatch cover 15 and the container C disposed above the hatch cover 15 are the conventional hatch cover 15. It has the same construction as the fastening means for fastening the container and the container C arranged above it, and is engaged with the engaging portions 25a, 25b of the hatch cover 15 or the hole 21a of the corner fitting 21 of the container C, respectively. It has a structure in which lashing rods are connected so as to be tightenable via a turnbuckle. Securing means 2
The number of 6, 27 and the specific securing method are appropriately determined depending on the circumstances.

Further, another feature of the hatch cover 15 is that the guttawei 30 is provided in an upright state on the upper edge of the hatch cover body 15a. The gutter way 30 is provided in order to prevent the rainwater that falls on the hatch cover 15 or the container C mounted on the hatch cover 15 from being poured into the hold, and has a structure that allows drainage to any place. ing. For this reason, one portion of the gutter way 30 is cut in parallel and bent outward (see FIG. 2), and the rainwater dropped on the hatch cover 15 is drained through the bent portion 30a. . In FIG. 1, reference numeral 32 denotes a stacking cone provided on the upper surface of the hatch cover body 15, which is used for container fixing when the containers C are stacked on the hatch cover 15.

According to the hatch cover having the above-mentioned structure, the stacking cone is not only mounted on the hatch combing 14 as in the conventional case, but in addition to that, the stacking cone is connected to the corner metal fitting 21 on the upper part of the container on the lower surface of the hatch cover body 15a. Since the container 22 is provided, the stacking cone 22 is inserted into the hole 21a of the corner fitting 21 of the container C with respect to the container C stacked so as to project above the hatch combing 14 in the hatch of the container ship. Therefore, it can be easily attached to the upper part of the uppermost container C.

As described above, when the hatch cover 15 is attached to the upper part of the uppermost container C, it can be easily estimated that the weather is calm during a short time operation such as a coastal service. In that case, the hatch cover 15 is purposely attached to the hatch coaming 14,
It is not necessary to use a means for loading the containers C on the hatch cover 15 and securing them and leaving the port, and loading the containers C in the hold so as to project above the hatch coaming 14, and the uppermost part thereof. The container C can be secured by a simple method such as attaching the hatch cover 15 to the upper part of the container C.

When such a method is adopted, it is not necessary to mount the container C on the hatch cover 15 or to fix the hatch cover 15 and the container C mounted on the hatch cover 15 at the upper part thereof. Hatch cover 1 instead of them
The work of securing 5 to the hatch coaming 14 is required, but the work is much easier than the work of securing the hatch cover 15 and the container C attached to the upper part thereof. Time can be shortened and work can be simplified.

In addition, when the containers C are stacked high in the hold, as compared with the case where the containers C are stacked in two steps, as shown in FIG. There is no risk of wide gaps in the hull, and the position of the center of gravity of the hull during container loading can be lowered accordingly.

Further, since the guttawei 30 is provided around the hatch cover main body 15a, even if it rains after the container C is completely loaded, the rain can be treated on the hatch cover 15. , It is possible to avoid the problem that wind and rain will enter the hold. In the above embodiment, a plurality of containers C are stacked in the hatch 13 of the container ship so as to project above the hatch coaming 14, and the hatch cover 15 is provided on the top surface of the stacked container C. Further, as shown by a chain double-dashed line in FIG. 2, containers C can be stacked on the upper side of the hatch cover 15. In this case, the hatch cover 1
The container C can be secured to the hatch cover 15 by a securing means such as a lashing rod or a lashing wire using the engaging portion 25b provided on the upper side surface of the container 5.

[0022]

As described above, according to the first aspect of the present invention, since the position fixing hardware is attached to the lower surface of the hatch cover main body, it can be attached on the hatch combing as in the conventional case and the container ship. It is possible to select one of the forms such as the case where the container is attached to the upper surface of the container that is stacked so as to project above the hatch combing in the hatch of. Therefore, if it is easy to infer that the weather is calm during operation, such as a coastal service for a short time, by adopting the latter, simplification of lashing work and time advantage can be achieved. Become. The above effect is the same as in the case of the invention described in claim 2.

According to the third aspect of the present invention, since the lashing means for lashing the hatch cover and the hatch coaming is provided between the hatch cover and the hatch coaming, the hatch cover can be firmly fixed to the hull while having a simple structure. It has an excellent effect that it can be fixed and can be sufficiently dealt with even when the vibration of the ship is relatively large.

[Brief description of drawings]

FIG. 1 is a side view of an essential part showing an embodiment of the present invention.

FIG. 2 is a perspective view of an essential part showing an embodiment of the present invention.

FIG. 3 is a perspective view showing an example of a corner metal piece attached to a container.

FIG. 4 is a perspective view showing an example of a position fixing hardware showing an embodiment of the present invention.

FIG. 5 is a cross-sectional view showing a connecting portion of upper and lower containers showing an embodiment of the present invention.

FIG. 6 is a transverse cross-sectional view of a hull showing a conventional example.

[Explanation of symbols]

 11 Hull 13 Hatch 14 Hatch Combing 15 Hatch Cover 15a Hatch Cover Main Body 21 Corner Metal Fitting 21a Hole 22 Position Fixing Hardware (Stacking Cone) 26 Secured Means 27 Secured Means 30 Guttaway 32 Stacked Cone C Container

Claims (4)

[Claims] 1. A hatch cover which covers an upper side of a hatch of a container ship so as to cover the hatch, the position fixing being inserted into a hole of a corner fitting provided on an upper surface of the container on a lower surface inside the hatch cover body. A hatch cover for a container ship, which is equipped with hardware. 2. A plurality of containers are stacked in a hatch of a container ship so as to project above the hatch coaming, and a position fixing metal fitting provided on a lower surface of a hatch cover main body is provided on an upper surface of the stacked containers. A hatch cover for a container ship, which is characterized by being inserted into and attached to a hole in a corner metal fitting on the upper surface of the container. 3. The container ship hatch cover according to claim 2, further comprising lashing means for lashing both the hatch cover body and the hatch coaming between the hatch cover body and the hatch coaming. Hatch cover. 4. The hatch cover of the container ship according to claim 2, wherein a guttawei for rain treatment is provided at a predetermined height at an upper edge portion of the hatch cover body, and the hatch cover body holds collected water. A hatch cover for a container ship, which is provided with a drainage port for removal.