JPS6336998B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cargo ship, and more particularly to a cargo ship that can be used both for transporting refrigerated and frozen cargo and for transporting roll-on and roll-off cargo such as automobiles.

In general, cargo ships that transport refrigerated and frozen cargo require a fan room C, etc. to blow cold air b into the hold a, as shown in Figure 1 (hull longitudinal section) and Figure 2 (hull cross section). However, the ship price will increase as a result.
Transportation of refrigerated and frozen cargo (fruits, vegetables, meat, etc.)
It often depends on seasonal factors.

Therefore, during the off-season for refrigerated and frozen cargo, it is desirable to divert the dedicated cargo ship to transport other cargo such as roll-on roll-off cargo.However, in conventional cargo ships, the fan room c mentioned above is fixed. It was considered difficult to convert it into a roll-on roll-off type cargo loading system because it was installed along the hull transverse bulkheads d, which were fixed, and because the number of fixed transverse bulkheads d was too large.

For example, there are ships such as those shown in Japanese Patent Application Laid-Open No. 152686/1986 that have made this type of conversion possible, but since the decks of such ships are all fixed, the effective use of cargo space is limited. It is insufficient in terms of practical use.

The present invention aims to solve these problems, and while it can be used as a refrigerated cargo ship without any problems at all times, it can also be converted into a roll-on roll-off type cargo carrier with simple operations when necessary. The aim is to provide a dual-purpose cargo ship that can be used efficiently.

For this reason, the cargo ship of the present invention is provided with a refrigerated and frozen cargo hold between fixed decks that is partitioned by a folding partition member, and is also provided with a fan room on the side of the ship that can blow cold air into the hold. a vertically movable temporary deck that is temporarily installed at a mid-height position between the fixed decks when repurposed for roll-on roll-off cargo loading;
It is characterized by the provision of a movable ramp that can connect the above decks.

Therefore, in the cargo ship of the present invention, the fan room provided on the side of the ship acts to uniformly blow cool air to each part of the cargo hold, regardless of whether there is a partition with a foldable partition member, and can move up and down. In its temporary position, the temporary deck is temporarily installed at a height intermediate between the fixed decks, dividing the cargo hold at a height suitable for loading roll-on roll-off cargo, and in its storage position, The movable ramp is stored along the fixed deck and serves to make the space within the hold suitable for loading refrigerated and frozen cargo. Acts as a transportation route.

Hereinafter, a cargo ship as an embodiment of the present invention will be explained with reference to the drawings. FIG. 3 is a longitudinal sectional view thereof, FIG. 4 is a cross sectional view thereof, and FIG.
It is an enlarged sectional view along the -V line.

Fixed deck 2 in hull 1 as shown in Figure 3
(In this embodiment, a double bottom and top plate is also included for convenience.) A refrigerated and frozen cargo hold 5 is formed between the horizontal bulkheads 3 and a foldable partition member 4, and the horizontal bulkhead 3 is provided with a door. An opening 3a is formed, and a partition member 4 is temporarily installed between the decks.

When the partition member 4 is not in use, it can be folded and stored under the fixed deck 2 above or the temporary deck 11, which will be described later.

In addition, as shown in Figure 4, there is a hold 5 on the side of the ship.
A fan room 7 is formed for blowing cold air 6 inward.

A heat-insulating layer 8 is provided on the inner surface of the hold 5.
This ensures that refrigerated and frozen cargo is kept sufficiently cold.

The refrigerated and frozen cargo is handled using a lift-on/lift-off method using a crane or derrick 9 shown in FIG. 3 through a hatch 10.

Furthermore, in a cargo ship as an embodiment of the present invention,
In order to load roll-on roll-off cargo such as automobiles, a temporary deck 11 that is movable up and down is provided at a mid-height position between the fixed decks 2 and 2. , 11, a movable lamp 12 and fixed lamps 13, 14 are provided.

The movable lamp 12 is attached to the temporary deck 11 so that it can rotate around a hinge 15, and when stored, it rotates so that it is in a horizontal state.
It is stored by being lifted up together with the temporary deck 11 below the fixed deck 2 above or lowered above the fixed deck 2 below.

With the temporary deck 11 temporarily installed in the use position, refrigerated and frozen cargo can be handled by a vehicle in a roll-on roll-off manner, and the air curtain device 16 is used to prevent heat from entering the warehouse from the outside.

Further, as shown in FIG. 5, the deck transverse rib 17 is attached to the upper surface of the decks 2 and 11, and a deck mat 18 is further provided on top of it, and a gap 19 is formed between the deck mats 18.
can be used as a duct for blowing cold air.

As shown in FIG. 3, a car rudder 20 is pivotally mounted to the stern of the ship so that it can be raised and lowered, and cargo handling is carried out by a roll-on roll-off method through the hull opening 21 and the boarding deck 2a.
Cargo can also be unloaded onto the upper deck via the fixed ramp 14 and the movable ramp 12 and through the entrance/exit 22.

In the case of cargo that requires a relatively high height between decks, such as refrigerated and frozen containers, the temporary deck 11 is stored as described above, and cargo handling is performed using a lift-on lift-off method using a crane or derrick 9.

In addition, in the case of roll-on roll-off type cargo such as automobiles or refrigerated cargo loaded on vehicles, the height between the decks may be relatively low and a large floor space is required, so a temporary deck 11 is temporarily installed at the position where it will be used. By using the movable ramp 12 and fixed ramps 13 and 14 to communicate between decks, roll-on roll-off cargo handling can be carried out extremely efficiently.

That is, in the cargo ship of the present invention, the foldable partition member 4 is used, and the fan room 7 is
This is because since it is provided on the side of the ship, it is possible to move automobiles, etc. in the direction of the ship without any hindrance.

Also, if a car is loaded, fan room 7
Another advantage is that the warehouse can be ventilated by leading the outside air intake duct into the warehouse.

As detailed above, according to the cargo ship of the present invention, the fan room is provided on the side of the ship, and the cargo hold is partitioned with foldable partition members, making it possible to use a vertically movable temporary deck. Not only does it make it easier to switch cargo handling methods, but it also provides economical operation performance with extremely high loading efficiency, making it possible to efficiently transport both refrigerated and frozen cargo and roll-on roll-off cargo. It is possible.

[Brief explanation of the drawing]

Figures 1 and 2 show an example of a conventional cargo ship, with Figure 1 being a longitudinal sectional view thereof, Figure 2 being a cross sectional view thereof, and Figures 3 to 5 showing an example of the present invention. Figure 3 shows a vertical cross-sectional view of the cargo ship.
Figure 4 is its cross-sectional view, and Figure 5 is V-V of Figure 4.
FIG. 3 is an enlarged cross-sectional view taken along the line. 1... Hull, 2... Fixed deck, 2a... Boarding deck, 3... Transverse bulkhead, 3a... Opening with door, 4
...Foldable partition member, 5... Refrigerated and frozen cargo hold, 6... Cold air, 7... Fan room, 8...
...Heatproof layer, 9... Derrick, 10... Hatch, 1
1...Temporary deck, 12...Movable ramp, 13,1
4...Fixed lamp, 15...Hinge, 16...Air curtain device, 17...Deck transverse bone, 18...
Deck rug, 19... gap, 20... car ladder,
21...Hull opening, 22...Entrance/exit.

Claims (1)

[Claims] 1 A refrigerated cargo hold separated by a folding partition member is provided between the fixed decks, and a fan room is provided on the side of the ship that can blow cold air into the above hold, and the above hold is equipped with a roll-on roll-off type cargo loading system. A temporary deck that can be moved up and down, which can be temporarily installed at a mid-height position between the fixed decks when repurposed for other purposes, and a movable ramp that can connect each of the decks. do,
cargo ship.