JP2632642B2 - Cylindrical floating body - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylindrical floating body.
More specifically, the present invention relates to a novel structure of a cylindrical floating body which is a component such as a pontoon or a wave-break floating block.

[0002]

2. Description of the Related Art In recent years, a pontoon laid on water, that is, a floating body constituting a floating structure such as a floating pier, has recently been a rectangular block mainly filled with a foam as a core material inside a concrete outer peripheral wall. Are used as a unit, and a plurality of them are connected to each other.

[0003] Such a conventional rectangular floating body made of concrete takes a long time to manufacture, and there are many difficulties in handling such as transporting from the place of manufacture to the place of construction.

[0004] The inventor of the present application disclosed in Japanese Patent Application No. 61365/1993 a reinforcing structure knitted in a cylindrical lattice pattern as a new floating body excluding many obstacles accompanying the conventional concrete floating body. A hollow cylindrical concrete shell with the body buried, a concrete end disk placed at both ends of the shell, and a foam plastic core filled into the hollow of the concrete shell And a column-shaped concrete floating body.

[0005] The cylindrical concrete floating body of the invention of the prior application is easier to manufacture, handle and transport than a conventional concrete floating body, is resistant to the effects of waves and the like due to its outer shape, and is excellent in wave breaking effect. is there.

[0006]

The conventional floating body as described above has many disadvantages in its production, such as a considerably large place, a long production time, and a transportation from the production place to the laying place. , And had the disadvantage of being strongly affected by the waves.

[0007] The above-mentioned cylindrical concrete floating body has an excellent effect as described above. However, the drawback is that the outer shell is made of concrete, so that it takes some time to produce the concrete. Because the whole is cylindrical, it is easy to rotate on water when floating on the water surface.

In view of the above-mentioned problems, an object of the present invention is to provide a cylindrical floating body which can be easily manufactured in a short time without requiring an operation such as molding of concrete. It is in.

Another object of the present invention is to provide a cylindrical floating body in which one of the peripheral walls of the cylindrical floating body is always located below without rotating when floating on the water surface.

Another object of the present invention is to provide a cylindrical floating body which can easily construct and construct a floating structure, for example, a pontoon, which is integrated by connecting the respective floating body units to each other at an offshore site. It is in.

An object of the present invention is to provide a cylindrical floating body which is also effective as a breakwater.

[0012]

According to the present invention, in order to realize the above-mentioned object, a floating body unit is made of synthetic resin and is a part of an inner peripheral wall of a first hollow cylinder having a large diameter. Attach a second hollow cylinder made of synthetic resin and small in diameter so that it comes into contact with the inside of the first hollow cylinder formed by the first hollow cylinder and the second hollow cylinder. A second hollow cylinder and a third hollow cylinder filled with a synthetic resin and attached inside the second hollow cylinder with a third hollow cylinder extending coaxially with the axis of the second hollow cylinder A foamed resin is filled into a second hollow cylinder formed by the above, and both ends thereof are closed with a heavy structure serving as a counterweight, and both ends of the first and second cylinders are closed by the third. Is closed by an end plate without covering the hollow portion of the hollow cylinder.

According to the present invention, a base plate is placed on the upper part of the first cylinder, and further, a steel pipe projecting outward from both ends thereof is inserted into the third cylinder, thereby forming the steel pipe. The base plate may be connected to the outwardly protruding portion with a mounting bracket to form a pontoon floating body unit, and a plurality of cylindrical floating bodies may be mutually connected through a rope or the like in the third cylinder. Once connected, a wave-breaking fence is configured immediately.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 and 2,
The cylindrical floating body 10 of the present invention arranges a small-diameter second hollow cylinder 14 smaller than the first cylinder 12 inside the large-diameter first hollow cylinder 12, Inside the second cylinder 14, a third hollow cylinder 16 concentric with the cylinder 14 is arranged.

The diameter of the second cylinder 14 is about one half of the diameter D of the first cylinder 12, and the diameter of the third cylinder is about one tenth of the diameter of the first cylinder. It is desirable that the length of each cylinder be approximately twice the diameter D of the first cylinder 12. That is, for example, the first cylinder 1
Assuming that the diameter of the second cylinder 14 is about 1 meter, the second cylinder 14 has a diameter of about 0.5 meter and the third cylinder has a diameter of about 0.1 meter. Advantageously, each is about 2 meters long.

The space between the first cylinder 12 and the second cylinder 14 is filled with styrofoam 18 and the second cylinder 14
Similarly, a polystyrene foam 20 is put in a space between the second cylinder 14 and the third cylinder 16, and a weight block member 22 is provided at both ends between the second cylinder 14 and the third cylinder 16, for example, an annular concrete block. And finally excluding the hollow portion of the third cylinder 16, both ends of the first cylinder 12 and the second cylinder 14 are closed with end plates 24.

In the present invention, each cylinder 12,
14 and 16 are preferably made of synthetic resin, for example, polyethylene, and may be made of other materials, for example, steel plate. In addition, a ready-made drum can or the like can be used for the first cylinder 12.

The Styrofoam 18 and 20 to be filled in the first cylinder 12 and the second cylinder 14 may be granular or molded, and the cylindrical floating body 10 floats in water having a mass of 1 or less as a whole. Sufficient.

The weight block members 22 housed at both ends of the second cylinder 14 always position the side of the second cylinder 14 downward when the cylindrical floating body 10 is floated on water. As the weight block member 22, for example,
Concrete blocks can be used.

As shown in FIG. 3, the cylindrical floating body 10 of the present invention is extremely effective as a basic structural unit constituting a pontoon or the like.

A specific example will be described with reference to the drawings. FIG.
As shown in FIG. 7, a steel pipe 26 is inserted into the third cylinder 16 of the cylindrical floating body 10, and both ends of the steel pipe 26 are formed as protrusions 28 extending outward from both ends of the cylindrical floating body 10 by a desired length.

As shown in FIG. 3, a plurality of cylindrical floating bodies 1
0 are arranged at appropriate intervals so that their longitudinal axes are parallel to each other.
0 is fixed so as to be mounted on the cylindrical floating body 10 with its longitudinal axis intersecting at right angles with the longitudinal axis of the cylindrical floating body 10.

In order to fix the base plate 30 to the cylindrical floating body 10, one end of an appropriate mounting bracket 32 is fixed to the protrusion 28 of the steel pipe 26 inserted into the hollow third cylinder 16 of the cylindrical floating body 10, The other end of the mounting bracket 32 is fixed to the base plate 30.

The cylindrical floating body 10 constructed as described above
By connecting the plurality of adjacent base plates 30 of the unit formed by fixing the base plate 30 to each other, a pontoon having a desired length can be completed.

Further, as shown in FIG. 5, the cylindrical floating body 10 of the present invention has a rope 34 attached to the third hollow cylinder 16 thereof.
Through, the plurality of cylindrical floating bodies 10 are connected to each other and laid on the sea, which is also effective as a wave-breaking fence.

[0026]

Since the cylindrical floating body 10 of the present invention has the construction as described in detail above, each floating body can be easily manufactured in a factory, and this can be used, for example, at a site where it is to be laid as a pontoon. Transporting and assembling on site are much easier than conventional concrete floating bodies.

Further, according to the present invention, the cylindrical floating body 1
When 0 floats on the water, the side of the second cylinder 14 is always located in the water due to the weight block member 22 housed in the second cylinder 14, and the cylindrical floating body 10 is Since there is no rotation, the work can be performed accurately and quickly.

As described above, the cylindrical floating body 10 of the present invention has a number of effects not seen in the prior art, such as a simple construction of a breakwater or the like by connecting a plurality of them with a rope or the like. And features.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a cylindrical floating body according to the present invention, taken along a line II of FIG. 2 and viewed in a direction indicated by an arrow.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is a schematic elevation view showing one unit of a pontoon constituted by the cylindrical floating body of the present invention.

FIG. 4 is a partially sectional front view for explaining insertion of a steel pipe into a cylindrical floating body of the present invention.

FIG. 5 is a schematic view illustrating a breakwater constituted by a cylindrical floating body of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Cylindrical floating body 12 1st cylinder 14 2nd cylinder 16 3rd cylinder 18 and 20 Styrofoam 22 Weight block member 24 End plate 26 Steel pipe 28 26 Projection 30 Base plate 32 Mounting bracket 34 Rope

Claims (6)

(57) [Claims] 1. A first cylinder, a second cylinder being inscribed and attached to the first cylinder, and a first space formed by the first cylinder and the second cylinder. Filled with polystyrene foam, and a second hollow cylinder disposed concentrically with the second cylinder inside the second cylinder, a second cylinder formed by the second cylinder and the third cylinder Filling the void with polystyrene foam and attaching weight block members to both ends thereof, and excluding the hollow opening of the third cylinder, both ends of the first cylinder and the second cylinder with end plates. A cylindrical floating body consisting of a closed body. 2. The cylindrical floating body according to claim 1, wherein said first, second and third cylinders are made of synthetic resin. 3. The cylindrical floating body according to claim 1, wherein said first cylinder is made of steel. 4. A first space formed by a first cylinder, a second cylinder inscribed in the first cylinder, and a first space formed by the first cylinder and the second cylinder. Filled with polystyrene foam, and a second hollow cylinder disposed concentrically with the second cylinder inside the second cylinder, a second cylinder formed by the second cylinder and the third cylinder Filling the vacant space with Styrofoam and attaching weight block members to both ends thereof, and excluding the hollow opening of the third cylinder, both ends of the first cylinder and the second cylinder with end plates. Closed, that a steel pipe was inserted into the third cylinder so as to protrude outward from both ends, a base plate was arranged on the outer periphery of the first cylinder, and the base plate was attached to the mounting bracket. A cylindrical floating body fixed to the projecting portion of the steel pipe. 5. The cylindrical floating body according to claim 4, wherein a longitudinal axis of said base plate is arranged to be orthogonal to a longitudinal axis of each of said cylinders. 6. The diameter of the second cylinder is about one half of the diameter of the first cylinder, and the diameter of the third cylinder is about one tenth of the diameter of the first cylinder. , The length of the first, second and third cylinders to be about two times the diameter of the first cylinder.
5. A cylindrical floating body according to claim 1, wherein said cylindrical floating body is doubled.