JP3002178B2 - Marine organism adhesion prevention equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an instrument for preventing marine organisms from adhering to underwater buildings and ships, and more particularly to an instrument for preventing shellfish from adhering.

[0002]

2. Description of the Related Art To date, various buildings such as bridges have been constructed on the sea. These structures have problems that cannot occur with land-based structures. One of the problems is that shells attach to the seawater (water surface or waterline) of the buildings, which corrodes the material of the seams, and this corrosion extends the life of these buildings. It is one of the main factors for shrinking. Currently, tar epox is used to prevent the attachment of these shellfish.
y) and special antifouling paints such as Labax AF manufactured by Chugoku Paint Co., Ltd. and Labamarine AF manufactured by Kansai Paint Co., Ltd. are applied in advance to areas where shellfish may adhere. I have.

[0003]

However, in practice, the application of the tar epo / special antifouling paint can be performed only at low tide, so that a very long working time is required. In addition, since the special antifouling paint or the like is exposed to seawater before it is fixed on the application surface, the paint is washed away, requiring a repainting, which leads to a problem that the cost is greatly increased. In addition, there is a problem that these paints contain an organic metal, which dissolves in the sea and destroys the environment. In addition, shellfish such as barnacles bite into the coating surface of the paint, the paint was peeled off,
In addition, there is a problem that the material underneath is damaged. SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide means for preventing the attachment of marine organisms at low cost, which does not require a long working time, and does not cause environmental destruction.

[0004]

In order to solve the above-mentioned problems, a marine organism adhesion preventing device according to the present invention is made of an elastic member or plastics, and is provided with a polygonal cylindrical or cylindrical adhesion preventing member and a plurality of adhesion preventing members. It is constituted by an annular rope which penetrates the adhesion preventing member and connects one end to the other end to form an annular shape. When the marine organism attachment prevention device of the above configuration is attached to a pillar such as a bridge, the cylinder moves randomly around the draft line, that is, the sea surface and its vicinity, due to the ebb and flow of the tide and the waves, so that shells adhere Is prevented. Examples of the adhesion preventing member used include elastic members such as soft-resistant rubber and hard-resistant rubber, plastics, and the like, and any material having mechanical strength and high abrasion resistance may be used.
Further, when a material having a low specific gravity such as a soft-resistant rubber is used, a floating member is not required. However, when a material having a specific gravity higher than that of seawater such as a hard-resistant rubber is used, a floating member is required. Further, when marine organisms such as shellfish adhere to pillars or the like, they can be removed by a polygonal cylindrical or cylindrical adhesion preventing member. For this purpose, the surface of the adhesion preventing member may be roughened or uneven.

[0005]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a first embodiment of the marine organism adhesion preventing device of the present invention. In the figure, reference numeral 1 denotes a cylinder using a resistant rubber such as (showing an example of a material). Since the resistant rubber is resistant to corrosion against seawater, resistant to ultraviolet rays, resistant to impact, and resistant to abrasion, it is most suitable for use in this marine organism adhesion preventing device. A through hole is formed in the cylinder 1, and a rope 2 made of, for example, nylon is passed through the cylinder 1. The dimensions are, for example, that the diameter a of the bottom surface is 20 cm, the length b is 170 cm, and the thickness c of the side wall is 80 mm. The diameter d of the rope 2 is 30 mm. As is clear from these dimensions, the through hole of the cylinder 1 is substantially equal to the diameter of the rope 2. More preferably, the cylinder 1 and the rope 2 are in close contact with each other. According to this configuration, the cylinder 1 does not rotate around the through hole, and the effect of scraping marine organisms such as shells attached to the pillars of the bridge due to the ebb and flow of the tide, waves, and the like is further increased. It becomes. However, as shown in FIG. 4, the cylinder 1 does not necessarily have to be in close contact with the rope 2 and may rotate slightly around the through hole. The rope is
Both ends may be connected after penetrating a cylinder or the like, or a connecting device may be attached to both ends for connection.

FIG. 2 shows a state in which the marine organism attachment preventing device of the present invention is actually mounted on a pillar of a bridge having a diameter of 1 m. Five or six cylinders 1 are passed through the rope 2, and a float (buoy) 3 is connected to the rope 2 between the cylinders 1. At this time, if the material of the cylinder 1 is soft-resistant rubber or plastic (for example, plastic such as FRT which is strong against impact), it is not always necessary to attach the float 3. Then, the rope 2 is attached in an annular shape so as to surround the column 4 of the bridge. However, the rope 2 is slightly loosely attached to the column 4 so that the equipment can move up and down according to the vertical movement due to low tide and high tide on the sea surface. In this way, the marine organism attachment preventing device is attached to the column, and is always floated on the sea surface. The cylinder hits the strut due to the ebb and flow of the tide, or moves randomly along the strut near the draft line (within a range of about 1 m above and below the draft line). The living organisms are scraped by the cylinder.

Next, a second embodiment will be described with reference to FIG. In FIG. 3, reference numeral 11 denotes a polygonal cylinder using a resistant rubber such as (showing an example of a material). The dimensions are, for example, a diameter a ′ of the bottom surface of 20 cm and a length b ′ of 170 c
m, and the thickness c ′ of the wall surface is 80 mm. Since other configurations are the same as those of the first embodiment, the same reference numerals are given to the drawings and the description will be omitted. As described above, the marine organism adhesion preventing device of the present invention includes:
Since this is simply wound around a column and constantly floated on the sea surface, the work of applying paint to a portion to which marine organisms such as shellfish adhere can be omitted. In addition, since only the material cost of the marine organism adhesion preventing device is sufficient, it is possible to expect a significant cost reduction. Further, since the adhesion of shellfish such as barnacles can be almost completely prevented, the material of the pillar such as a bridge is prevented from being damaged. Furthermore, since there is no need to use an antifouling paint containing an organic metal, the problem of marine pollution is eliminated. In the above embodiment, the cylinder has been described as being circular or polygonal. However, it is needless to say that the cylinder may be square or triangular. In addition, the present invention is not limited to bridges, and it is needless to say that the present invention can be applied to ships that are anchored or ships.

[0008]

According to the present invention, it is possible to provide a means for preventing the attachment of marine organisms at low cost to a building such as a pillar of a bridge, which does not require a long working time, by the above configuration. Become.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a part of a first embodiment of the present invention.

FIG. 2 is a conceptual diagram in which the marine organism adhesion preventing device of the present invention is mounted on a column near the sea surface.

FIG. 3 is a perspective view and a sectional view showing a part of a second embodiment of the present invention.

FIG. 4 is a perspective view showing a modification of the first embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Cylinder, 2 ... Rope, 3 ... Float, 4 ... Support, 11 ... (Polygon) cylinder.

Claims (4)

(57) [Claims] 1. An annular anti-adhesion member made of a plurality of polygonal or cylindrical elastic members or plastics, penetrating the anti-adhesion members, and connecting one end and the other end thereof to form an annular shape. A device for preventing marine organisms from adhering, comprising a rope. 2. An adhesion preventing member made of a plurality of polygonal or cylindrical elastic members or plastics, at least one floating member, and penetrating the plurality of adhesion preventing members and the floating member, and one end thereof. A marine organism attachment prevention device comprising: a rope connected to the other end and formed in an annular shape. 3. The marine organism adhesion preventing device according to claim 1, wherein the surface of the adhesion preventing member is roughened or uneven. 4. A rope formed by connecting the both ends to form an annular shape, surrounds a member of a building in the sea, floats near the sea surface, and moves up and down on the sea surface due to low tide and high tide. Claims 1 to 3
The marine organism adhesion preventing device according to any one of the above.