JPS6337758B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a three-piece earth and sand carrier, and more particularly to a three-piece earth and sand carrier in which a hull having a hopper is divided into three unit hull members in the length direction.

In the past, various shapes have been proposed for earth and sand carriers used in marine reclamation work, etc., but one of them is a ship constructed by unitary hull members divided in the longitudinal direction and connected by hinges. When dumping earth and sand into the water, the unit hull member is rotated around the hinge.

By the way, in such a split-type earth and sand transport ship, when dumping earth and sand, the unit hull members rotate around the hinge and protrude from the bottom of the hull, so in shallow seas, the bottom of the unit hull members may come into contact with the seabed and tilt. This may make it impossible to dump earth and sand, and there is a risk that the unit hull components may be damaged.

On the other hand, since the earth and sand carrier is constructed by connecting the unit hulls with hinges, there is a problem that as the hull becomes larger, the strength of the hull becomes weaker and the distortion increases.

In addition, the hull is divided vertically, and the port and starboard parts, which can be moved relatively, are moved horizontally in a direction that separates them from each other, and particulate matter inside the hull is dumped between them. is known (for example, Japanese Patent Publication No. 50-16076), but with this, when the bottom of the hull touches the sea surface, that is, when the water depth is extremely shallow, relative movement of the port and starboard parts is impossible. There are some drawbacks.

The present invention aims to eliminate such drawbacks by constructing a ship body into unit hull members divided into three parts in the length direction, forming a hopper between each unit hull member, and forming a hopper between the unit hull members. The lower part of the hopper can be opened and closed by sliding two of the members arranged on both sides in the horizontal direction, and the bottom of the unit hull member located in the center can be moved between the bottom parts of the unit hull members arranged on both sides. The purpose is to provide a three-part earth and sand carrier that protrudes from the bottom.

1 to 4 show embodiments of the present invention.

In this embodiment, the hull S is divided into three unit hull members 20A, 20B and 20 in the length direction.
It is composed of C.

To be more specific, the hull S includes a central unit hull member 20A that is H-shaped in plan view with central parts cut out on both sides, and side unit members 20B and 20C that are inserted into the notches 21 of the central unit hull member 20A. It becomes more. The side surface of the cutout portion 21 of the central unit hull member 20A is formed as an inclined portion 22A for forming the hopper 22 (one side surface), and
Guide grooves 23A and 23B are formed in the front and rear portions thereof.

On the other hand, an inclined portion 22B is formed on the side surface of the side unit hull members 20B and 20C to form a hopper 22 (one side surface), and the front and rear end portions are fitted into the guide grooves 23A and 23B for sliding. A sliding member 28 is provided for movement. The unit hull members 20A, 20B and 20C are assembled as shown in FIG. 1 and connected and integrated by a locking device 24 to form a hull S.

As shown in FIG. 3, the bottom of the central unit hull member 20A is configured to protrude downward by a dimension l relative to the bottoms of the side unit hull members 20B and 20C disposed on both sides thereof. .

In the earth and sand transport ship having such a configuration, when the lock device 24 is opened, the side unit hull members 20B and 20C are pushed out in the horizontal direction by the weight pressure of the earth and sand 25, forming an opening in the lower part of the hopper 22. The earth and sand 25 are discharged and dumped into the water from the opening. Note that 26 is a protrusion for preventing soil leakage, and 27 is a seal.

By dividing the hull S into three in the longitudinal direction as in this embodiment, it is not only possible to dump earth and sand in a relatively shallow sea area, which is the object of the present invention, but also it is possible to dispose of earth and sand in a relatively shallow sea area, which is the object of the present invention. Compared to earth and sand carriers, the earth and sand hopper is not biased toward the centerline of the ship, making it easier to load and arrange earth and sand.

Furthermore, since the bottom of the central unit hull member protrudes from the bottoms of the side unit hulls by a dimension l, it can be used not only in shallow waters, but especially when the distance between the hull S and the seabed 25A is very small, or when the hull S is moved to the seabed 25A. Even when the hopper 22 is disposed of by sitting on the earth and sand, the bottoms of the hull members 20B and 20C on both sides do not sit on the seabed, so the lower part of the hopper 22 can be easily opened. be.

As explained above, according to the present invention, the hull of the earth and sand carrier is constructed by combining at least three unit hull members divided in the longitudinal direction, and two of the unit hull members are arranged on both sides. By moving the unit in the horizontal direction, the lower part of the hopper for loading earth and sand, which is made up of the opposing unit hull members, is opened and closed, and the bottom of the central unit hull is made to protrude from the bottom of those on both sides. Therefore, not only is it possible to dump earth and sand even in relatively shallow waters, especially in shallow waters where the ship's hull rests on the seabed, but also the unit hull members on both sides do not sit on the seabed, making it possible to Breakage accidents can be prevented, which is extremely useful in practice.

Of course, the present invention is not limited to the embodiments described above, and it is clear that various changes can be made without departing from the spirit thereof.

[Brief explanation of the drawing]

1 to 4 are explanatory diagrams of an embodiment of the present invention, in which FIG. 1 is a partially cutaway perspective view of an earth and sand carrier, FIG. 2 is an explanatory diagram of the main part, and FIG. C-
FIG. 4 is a front sectional view of the main part in the direction C, and a plan view. 22...Hopper, 20A, 20B, 20C...
... Unit hull member, 24 ... Lock device, 4 ... Release cylinder, 26 ... Protrusion, 27 ... Packing.

Claims (1)

[Claims] 1 The hull is composed of unit hull members divided into three parts in the length direction, a hopper is formed between each unit hull part, and two of these unit hull parts arranged on both sides are slid horizontally. A three-part earth and sand transport ship, characterized in that the lower part of the hopper can be opened and closed by opening and closing the hopper, and the bottom of the unit hull member located in the center is made to protrude from the bottom of the unit hull members arranged on both sides.