JPH038559Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a hatch cover for a ship.

Conventional configuration and its problems When loading bulk cargo from land into the hold of a cargo ship, efficiency is taken into account, and the loading capacity is 3,500 to 10,000 t/n.
A large amount of cargo work is carried out. Furthermore, when moving a hatch loading loader from a hatch, if the loader is stopped, the land conveyor must also be completely stopped, so the loader is usually moved without stopping. This causes bulk cargo to accumulate between the hatches on the upper deck. It takes time and effort to remove this accumulated bulk cargo, and it is particularly difficult to remove bulk cargo near the ship's equipment.

Purpose of the invention The object of the present invention is to provide a hatch cover for a ship that eliminates the above-mentioned conventional drawbacks.

Structure of the Invention In order to achieve the above object, the hatch cover for a ship of the present invention has rectangular hatches arranged at appropriate intervals along the bow and stern direction, the spacing of which is smaller than the spacing along the transverse direction of the ship. Form multiple,
The interval between each hatch is set to be almost the same as the interval along the bow and stern direction of the hatch cover, and each hatch cover is configured to be movable back and forth between the position above the hatch and between the hatches, and the upper surface of the hatch cover is It is shaped so that the dropped bulk cargo is guided into the hatch.

According to this configuration, the hatch is opened and the bulk cargo is dropped into the hold by the loading loader,
Next, when the loader is moved to the next hatch, bulk cargo falls from the loader between the hatches on the upper deck, but the space between the hatches on the upper deck is covered with a hatch cover, and the top surface of the hatch cover is
Since the loader is shaped so that the bulk cargo dropped onto it is guided into the hatch, the bulk cargo that falls from the loader between the hatches on the upper deck hits the hatch cover and is guided into the hatch. Therefore, bulk cargo does not accumulate between the hatches on the upper deck as in the past.

Embodiment and operation Hereinafter, an embodiment of the present invention will be described based on FIGS. 1 to 6. 1 is a cargo ship that transports bulk cargo 2 and has a plurality of holds 3. Reference numeral 4 denotes a plurality of hatches (two or three in this embodiment) formed in each hold 3, each having a rectangular shape in which the interval L ₁ along the bow and stern direction is smaller than the interval L ₂ along the transverse direction of the ship. It is formed and opens close to the side of the ship. Further, the interval α between each hatch 4 is set to be approximately the same as the interval β of the hatch cover 5 along the bow and stern direction. Further, the upper surface of the hatch cover 5 is formed into a chevron-shaped inclined surface 5A. 6 is a connecting rod with a length adjustment mechanism 7 that connects each hatch cover 5;
8 is a guide rail that supports the wheels 9 of the hatch cover 5, and 10 is rotatably supported by brackets 12 that are disposed opposite the corners of the hatch cover 5 located at both ends of the bow and stern of the upper deck 11. A pair of upper and lower pulleys 13 are connected at both ends to the corners of the hatch cover 5 located at both ends, and a pair of cables 1 are wound around each pulley 10.
4 is a drive motor that moves each hatch cover 5 in the direction of arrow A or B via each rope body 13 by rotating an appropriate pulley 10 in the forward and reverse directions; Eight first belt conveyors arranged along the bow and stern direction, 17 a pair of second belt conveyors that transport the bulk cargo 2 that has fallen from the first belt conveyors 15 at both ends towards the center of the ship; 18 a pair of second belt conveyors; Second belt conveyor 17 and first belt conveyor 1 in the center
The bulk cargo 2 that fell from 5 was transferred to the upper deck 11.
20 is an eighth belt conveyor that operates integrally with the bucket conveyor 18 to prevent the bulk cargo 2 from falling from the middle of the bucket conveyor 18; 21 is the upper deck 1;
1, which is an unloading device disposed on the upper deck 1.
1, a swivel base 22 is disposed on the swivel base 22 so as to be rotatable in the directions of arrows C and D, a boom 24 is connected to the swivel base 22 via a support shaft 23 so as to be movable up and down, and a support column 25 on the swivel base 22 is provided. A winch 27 for vertically moving the boom connects one end of a wire rope 26 extending from the winding drum to the tip of the boom 24, and a winch 27 for vertically moving the boom connects one end of a wire rope 26 extending from the winding drum to the top end of the boom 24; It is comprised of a fourth belt conveyor 29 that receives the fallen bulk cargo 2 via a hopper 28 and sends it to a receiving facility on land.

Hereinafter, the effects of the above configuration will be explained. First, when loading bulk cargo 2 into the hold 3, the unloading device 21 on the upper deck 11 is moved in the direction of arrow C or B to project out of the ship, and then the cylinders of each hatch coaming are activated. Let me wheel 9
lift up. Next, the motor 14 is operated to
3 in one direction, thereby causing the
4, the hatch covers 5 in the upper side of FIG. 4, and the states of FIG.
Bring it in between and open hatch 4. Next, bring the tip of the loader on land above a suitable hatch 4, operate the loader, drop the bulk cargo 2 from the hatch 4 into the hold 3, and similarly load the bulk cargo 2 from the hatch 4 into the hold 3 one after another. All you have to do is drop Cargo 2. Here, when the loader moves from hatch 4 to hatch 4, the bulk cargo 2 is transferred from the loader to hatch 4.
Since the space between the hatches 4 on the upper deck 11 is covered by the hatch cover 5, the fallen bulk cargo 2 falls onto the hatch cover 5, slides on the chevron-shaped slope 5A, and is thrown into the hatch 4. It is something that Therefore, it goes without saying that the bulk cargo 2 does not accumulate between the hatches 4 of the upper deck 11, and also does not accumulate on the hatch cover 5.

When loading is completed, the motor 14 is reversed to move each hatch cover 5 in the direction of arrow B to close the hatch 4, and the plate directly below the wheel 9 is lowered to place the hatch cover 5 on the hatch coaming. good.

Next, when the bulk cargo 2 in the cargo hold 3 is to be unloaded, the opening 16 in the cargo hold bottom 3A is first opened, and the bulk cargo 2 that has fallen from the opening 16 is transported toward the stern by the first belt conveyor 15.
The bulk cargo 2 falling from the first belt conveyors 15 at both ends is collected at the center of the ship by the second belt conveyor 17, and the bulk cargo 2 falling from each of the second belt conveyors 17 and the first belt conveyor 15 at the center is collected in a bucket. The third belt conveyor 20 prevents the bulk cargo 2 from falling from the middle of the bucket conveyor 18, and the bulk cargo 2 that has fallen from the upper end of the bucket conveyor 18 is lifted to the top of the upper deck 11 by the third belt conveyor 20. They may be received by the fourth belt conveyor 29 and delivered to a receiving facility on land.

In the above embodiment, the upper surface of the hatch cover 5 is formed into a chevron-shaped inclined surface 5A, but it is not limited to this. For example, as shown in FIG. 7, it may be formed into a semicylindrical arc surface 5B. In short, any shape is sufficient as long as the bulk cargo 2 is guided into the hatch 4.

Effects of the invention As described above, according to the invention, when a hatch is opened and bulk cargo is dropped into the hold by a loading loader, then when the loader is moved to the next hatch, Bulk cargo falls between the hatches on the upper deck, but the space between the hatches on the upper deck is covered with a hatch cover, and the top surface of the hatch cover is shaped so that the bulk cargo dropped onto it is guided into the hatch. For this reason, bulk cargo that falls from the loader between the hatches on the upper deck hits the hatch cover and is guided into the hatch. Therefore, bulk cargo does not accumulate between hatches on the upper deck as in the past.

[Brief explanation of drawings]

Figures 1 to 6 show an embodiment of the present invention, in which Figure 1 is a longitudinal cross-sectional view, Figure 2 is a plan view, Figure 3 is a cross-sectional view, and Figure 4, the upper side, is a plan view of the hatch in the closed state. The lower side of FIG. 4 is a plan view of the hatch in the open state, FIG. 5 is a view taken along the - arrow in FIG. 4, and FIG. 6 is a view taken along the - arrow in FIG. FIG. 7 is a vertical cross-sectional view of the main parts showing another embodiment of the present invention. 1... Cargo ship, 2... Bulk cargo, 3... Hold, 4... Hatch, 5... Hatch cover, 5A
... Chevron-shaped inclined surface, 5B ... Arc surface, 6 ... Connection rod, 13 ... Cable body, 14 ... Drive motor.

Claims (1)

[Scope of utility model registration request] A plurality of rectangular hatches are formed at appropriate intervals along the bow and stern direction, and the spacing along the bow and stern direction is smaller than the spacing along the hull transverse direction, and the spacing between each hatch is set to the interval along the bow and aft direction of the hatch cover. , each hatch cover is configured to be movable back and forth between the position above the hatch and the position between the hatches,
A hatch cover for a ship, characterized in that the upper surface of the hatch cover is shaped so that bulk cargo dropped thereon is guided into the hatch.