JPS597188Y2 - Hatch coaming top protection device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a protection device for the top surface of a hatch coaming.

When cargo such as coal or ore is unloaded into the hold of a ship using a cargo handling machine, or when unloaded outside the hold, some of the cargo falls and accumulates on the hatch coaming that guides the hatch force bar for opening and closing the hatch. .

Here, the top surface dimension of the hatch coaming can be adjusted to 450 to 500 by using an automatic tightening device for the hatch force bar.
The width is very wide (mm), and the amount of cargo that falls and accumulates on it becomes large.

In addition, on the top surface of the hatch coaming there is a running rail or guide rail that guides the watertight combination bar and the hatch force bar, making it extremely difficult to drain the debris that has accumulated in these valleys. Nasarae (removal) is not possible.

That is, conventionally, such deposits have been removed manually using a shovel or the like, and although it requires a large number of people, it is not possible to expect a complete work.

Furthermore, as ships have become larger in recent years, the number of 16m x 16m hatches has increased to 9 to 10, making it difficult to perform input operations.

As described above, if the deposits cannot be completely removed, the hatch force bar that has been opened will not be able to complete its closing travel, and in the worst case, the hatch force bar will become derailed.

In addition, the hatch force bar that has been moved to the closed state is lowered, and the packing provided on the bottom surface is brought into contact with the combination bar protruding from the top surface, and then tightened to create a hatch tight or watertight structure. However, if any deposits remain on the top surface, it will not be completely tightened, damaging the packing and causing seawater to enter the hold.

In order to solve the above problem, it may be possible to attach a cover made of a steel plate to the hatch force bar so that it can rotate around the horizontal axis, and cover the hatch coaming top surface with the cover when the hatch force bar is opened. When using such an integrated cover made of inflexible steel plate, etc., there are the following problems.

In other words, many protrusions such as combination bars protrude from the top surface of the hatch coaming, and it is difficult to process the cover into a shape that fits such protrusions. Even if you spend a lot of time machining it, there is a risk that the cover will get caught on the protrusion when opening and closing the hatch force bar.

On the other hand, if the cover is made into a flat plate, the cover will be supported at a single point by the highest protrusion on the top surface of the hatch coaming, which will result in instability and a very poor dustproof effect. small.

Furthermore, if the cover is made to be foldable, there will be a problem when storing the product by hanging it.

For this reason, when the cover is made of steel plate, the length of the cover must be shortened, and the hatch force bar cannot be moved significantly from above the hatch coaming when the hatch force bar is opened.

Therefore, during cargo handling in the hold, a problem arises in that the weathertight packing near the center of the hatch force bar comes into contact with the grab handling rope and is damaged.

The present invention proposes a protection device for the top surface of a hatch coaming that can solve the above-mentioned problems.
This will be explained based on FIGS.

1 shows the hull, and 2 shows the end-rolling hatch force bar.

The hatch coaming 4 forming a rectangular hatch 3 is composed of a pair of hatch side coamings 5 in the direction of the ship and a pair of hatch end coamings 6 in the direction of the bow and stern,
Combination bar on side coaming top surface 7
8 and a guide bar (sometimes a running rail for the hatch force bar) 9 are laid.

A packing 10 is attached to the lower surface of the hatch force bar 2.

Note that a combination bar 12 is also laid on the end combing top surface 11, but the corresponding packing is omitted.

The side coaming top surface 7 becomes a hatch coaming top surface exposed by opening the hatch force bar 2, and a seat 13 is disposed inside the corresponding hatch side coaming 5.

That is, the locking metal fittings 14 are attached to the inside of the upper end of the hatch side coaming 5 at appropriate intervals in the transverse bow and aft direction, and the locking metal fittings 15 that are locked to these metal fittings are attached to the mounting bar 16.

Then, one end of the seat 13 is folded double, and this is attached to the mounting bar 1 by a holding plate 17 and a large number of bolts and nuts 18.
6, so that the seat 13 is attached in a hanging manner.

Furthermore, fiber ropes 19 are attached to the free end of the sheet 13 via welding, and both ends of these fiber ropes 19 are sufficiently extended from both ends of the sheet 13 to form pulling ends 19A.

The seat 13 may be a single sheet in the bow and stern direction, or may be divided as shown in FIG. 9.

Further, the amount of hanging of this sheet 13 is determined by the length at which the fiber bundle 19 at the free end is located outside the hatch 3 after covering the side combing top surface 7.

20 indicates a tightening device, and 21 indicates an operating opening. A sheet 23 having a length equal to the hatch opening length is attached to a lower portion of the central joint portion 22 of the hatch force bar 2 in a hanging manner.

That is, the central joint portion 22 is composed of a plate 24 protruding from one side of the hatch force bar 2 and a packing 25 provided on the other side.

Then, one end of the sheet 23 is folded double, and this is attached to the side plate of the hatch 3 using a holding plate 26 and a large number of attachment bolts and nuts 27.

Furthermore, a weight par 28 is attached to the free end via welding.

The amount of hanging of the seat 23 is such that when the hatch force bar 2 is opened, the weight par 28 at the free end is positioned within the hatch 3 after covering the end coaming top surface 11.

2, 5 and 7 show the hatch force bar 2 in the closed state.

At this time, the packing 10 is in contact with the compression bar 8, and the seat 13 is completely suspended within the hatch 3.

The plate 24 and the packing 25 are in contact with each other, and the seat 23 is completely suspended within the hatch 3 due to the weight of the weight par 28.

3, 8, and 9 show the hatch force bar 2 immediately before it is opened and cargo handling work is performed.

At this time, the seat 23 can completely cover the end combing top surface 11 having the combination bar 12, and furthermore, the weight par 28 is positioned within the hatch 3 to maintain this position.

By folding the seat 13 outward, the seat 13 has a combination bar 8, a guide bar 9, and an operating opening 21, as shown in FIG. The side combing top surface 7 can be completely covered.

The folding of the sheet 13 to the outside is carried out via the pulling end 19A of the fiber cord 19, and after folding, the pulling end 19A is used to connect the upper deck or hatch coaming 4.
By tying it to the outside, the folded position can be maintained.

By doing so, the cargo that falls during cargo handling can be supported on the upper surfaces of both seats 13 and 23.

In addition, the cargo accumulated on the top surface of the sheet 13 can be removed in one motion by folding the sheet 13 outside the hatch 3 back into the hatch 3. , automatically drops into the hold by closing the hatch force bar 2.

In the above embodiment, an end rolling type was described, but a side rolling type as shown in FIG. 10 may also be used.

In this case, the sheet 13 covers the end combing top surface.

As described above, according to the present invention, cargo that falls during cargo handling can be supported on the top surface of the sheet, and cargo that has accumulated on the top surface of the sheet can be returned to the hold by folding the sheet back into the hatch. As a result, the top surface of the hatch coaming can always be made cleanly with simple work, and smooth movement of the hatch force bar and a perfect water structure can be expected.

In addition, the sheet is highly flexible, so it adapts well to the top surface of the hatch coaming, which has many protrusions.
It can be put into a suitable state of use.

[Brief explanation of drawings]

Figures 1 to 9 show an embodiment of the present invention; Figure 1 is a plan view of the bow side, Figures 2 to 4 are plan views of the main parts showing the operating state, and Figure 5 is a plan view of the bow side. 2, FIG. 6 is a BB sectional view in FIG. 4, FIG. 7 is a CC sectional view in FIG. 2, and FIG. 8 is a DD sectional view in FIG. 3. , FIG. 9 is a perspective view of the section viewed from arrow E, and FIG. 10 is a plan view of the bow side showing another embodiment. 1... Hull, 2... Hatch force bar, 3... Hatch, 4... Hatch coaming, 5... Hatch side coaming, 6... Hatch end coaming, 7...
Side combing top surface, 8, 12... Combretion bar 9... Guide bar, 11... End combing top surface, 13, 23... Sheet, 19...
- Fiber cord, 19A... end for pulling, 22... central joint.

Claims (1)

[Scope of utility model registration request] A sheet is provided with one end attached to the inside of the hatch coaming, and after the hatch force bar is opened, this sheet is shaped to such a length that it covers the exposed top surface of the hatch coaming and its free end is located outside the hatch. A protection device for the top surface of a hatch coaming.