JP5938432B2 - Floating structure - Google Patents

Description

  The present invention relates to a long floating structure used for a wave-breaking fence, an oil fence, a silt fence, or the like.

  Conventionally, a wave-breaking fence or the like that supports a curtain-like fence by a floating structure made of a resin tube filled with air or foamed resin is widely known (see, for example, Patent Document 1 and Patent Document 2). ).

  When such a floating structure swings with a wave, performance as a wave-dissipating fence or an oil fence cannot be obtained sufficiently, and thus a device for suppressing the swinging with the wave is required.

  For example, in Patent Document 2, an inertia member formed by sealing a gas and a liquid into a pipe is attached below a floating body of a rubber tube, and the vibration absorber is shaken by the inertia force of the liquid inside the inertia member. It has been proposed to suppress movement.

Japanese Patent Laid-Open No. 11-1000083 JP 7-305321 A

However, the floating structure of Patent Document 2 has a problem that since the inertia member is separate from the float, inertia does not sufficiently act on the float, and the float cannot be effectively suppressed from oscillating with the wave.
This invention is made | formed in view of the said subject, and aims at provision of the floating body structure which the inertia of an inertia member acts on a float more effectively.

Invention was made to solve the above problems, floating structures with float having an inertia member, and said inertia member covering the Hare foamed resin portion, and the foamed resin covering portion for covering the front Symbol onset foam resin portion, the It is a thing. The foamed resin portion is preferably made of a soft foam resin.

In the float according to the present invention, when the inertia member has a structure covered with the soft foam resin, the inertia member presses and deforms the soft foam resin due to the inertia when the inertia member swings by the wave, and the inertia member is hard. In the case of having a structure covered with foamed resin, for example, by making the hole through which the wire of hard foamed resin passes larger than the wire diameter, the float moves to an eccentric position opposite to the direction in which the float moves due to the wave. For this reason, it can suppress that the said floating body structure rocks | fluctuates by a wave. In the float of the present invention, since the inertia member is provided inside the float as described above, the inertia of the wire can be directly applied to the float.

  The floating structure of the present invention includes a buoy connected to the float, an anchor mooring the buoy, and a mooring line connecting the buoy and the anchor, and the mooring line is slackened into a character. It is preferable that it has a length that allows it to be stretched in a closed state. By doing so, the mooring line is lifted so as to be taut when the floating structure is pushed by the wave and moves. And if the force which a wave pushes becomes small, since a mooring line will return to the state loosened by the original weight by the original character, a floating structure will return to the original direction. As described above, the floating structure of the present invention can use the force pushed by the wave as a force returning in the reverse direction, and thus can efficiently suppress the rocking with the wave.

The floating structure of the present invention is formed by arranging a plurality of the floats in parallel, and the float has a concave stripe and / or a convex stripe on a side surface, and is adjacent by engaging the convex stripe with the concave stripe. The floats to be connected are hooked .

  As described above, according to the floating structure of the present invention, it is possible to effectively reduce the rocking with the wave.

It is a perspective view of the floating structure concerning the 1st reference form of the present invention. 2A is an exploded perspective view showing an internal structure of the float shown in FIG. 1, and FIG. 2B is a perspective view showing a structure of an end portion. (A) It is a perspective view of the coupling tool which connects the buoy in FIG. 1 to a float. (B) It is a perspective view of the coupling tool which connects the curtain part in FIG. 1 to a float. It is a perspective view of the float concerning a 1st embodiment of the present invention. It is a perspective view of the floating body structure concerning a 1st embodiment of the present invention. It is explanatory drawing of the (a) side view and (b) perspective view which show the effect | action of the floating body structure of FIG.

Hereinafter, reference embodiments and embodiments of the present invention will be described in detail with reference to the drawings as appropriate. However, the present invention is not limited to the following embodiments.
(First reference form)
FIG. 1 shows a floating structure 100 according to a first reference embodiment of the present invention. The floating structure 100 mainly includes a float 1, a plurality of buoys 2 connected to the float 1, an anchor 3 for mooring the buoy 2, and a mooring line 4 for coupling the buoy 2 to the anchor 3. The curtain unit 5 is provided to hang from the float 1.

  As shown in FIG. 2, the float 1 is a long member having a circular cross section, and includes a wire (inertial member) 11, a wire covering portion 12 covering the wire 11, and a soft foamed resin portion covering the wire covering portion 12. 13 and a foamed resin coating portion 14 that covers the soft foamed resin portion 13, and a skin material 15.

  The wire 11 is provided so as to extend in the longitudinal direction through the center of the cross section of the float 1. The material of the wire 11 is not particularly limited, and a known material can be appropriately employed in addition to stainless steel or plated carbon steel.

The wire covering portion 12 is formed in a thin film shape from a soft resin such as vinyl chloride, nylon, polypropylene, or polyethylene, various synthetic rubbers, or natural rubber, and covers the wire 11.

  As the soft foamed resin portion 13, other known soft foamed resins such as polyurethane, polyethylene, polystyrene, and the like can be appropriately selected. The cross-sectional area of the soft foamed resin portion 13 is preferably 10 to 20 times the cross-sectional area of the wire. If the cross-sectional area of the soft foamed resin portion is less than 10 times the cross-sectional area of the wire, the float 1 may sink in the water, and if it exceeds 20 times, the float 1 floats in the water more than half and may be washed away by the wind. is there.

  As shown in FIG. 2, a hook 16 may be provided at the end of the float 1. By doing so, the float 1 can be extended by connecting a plurality of floats 1.

  The foamed resin coating portion 14 is formed in a cloth shape or a film shape with a resin such as vinyl chloride, nylon, polyester, or polyethylene, and covers the soft foamed resin portion 13 in a watertight manner. The foamed resin coating portion 14 may use a polyester and vinyl chloride draw cloth.

  The skin portion 15 is formed in a cloth shape or a film shape with a soft resin similarly to the foamed resin coating portion 14, and is provided so as to cover the foamed resin coating portion 14. By doing so, the soft foamed resin portion 13 is maintained watertight by the foamed resin coating portion 14 even if the skin portion 15 is torn.

  As shown in FIG. 1, a plurality of buoys 2 are provided at appropriate intervals in the longitudinal direction of the float 1. One end of a mooring line 4 made of a metal chain or the like is connected to the lower end of the buoy 2, and the other end of the mooring line 4 is connected to the anchor 3. The mooring line 4 is longer than the water depth, and when the anchor 3 is arranged on the seabed near the float 1, the mooring line 4 is in a slack state. The buoy 2 is connected to the float 1 by the connecting tool 6 shown in FIG. The connection tool 6 includes a float gripping part 6a and a connection cable 6b.

The curtain part 5 is connected to the float 1 so as to hang down from the lower surface of the float 1 using the band 7 shown in FIG. As the curtain portion 5, a known material can be appropriately used. For example, a net-like cloth body such as polyester can be used in addition to a polyester or polyester and vinyl chloride cloth.

  Next, the operation of the floating structure 100 will be described. When a wave collides with the float 1 (and the curtain portion 5) as shown by an arrow W in FIG. 6A, the float 1 moves in the wave traveling direction. Move to (right of Fig. 6 (a)). At this time, the wire 11 inside the float 1 tries to stay in its original position due to inertia, and as shown by the arrow I, the soft foamed resin portion 13 is pressed to reverse the wave traveling direction inside the float 1. Eccentric to the side (right side). As a result, the float 1 moves differently from the oscillation of the wave.

6A, when the float 1 is pushed by the wave and moves to the right in the figure, the buoy 2 is pushed by the float 1, and the buoy 2 is also moved to the right. Moving. Then, the mooring line 4 mooring the float 1 is stretched in a straight line as shown by the imaginary line from the state slackened to the character. When the wave begins to return, the mooring line 4 tries to return to the state where it is loosened by its own weight as indicated by the arrow G, so that the buoy 2 attempts to return to the original direction as indicated by the arrow R, As shown by the solid line in FIG. 6B, the float 1 is deformed into a wave shape in plan view.

On the other hand, as shown in FIG. 6B, the portion between the buoys 2,... Of the float 1 is delayed by being pulled by the portions pushed by the buoys 2,. Trying to return to the front side of FIG. Further, the buoys 2,... Do not necessarily swing simultaneously, but a time difference occurs in the timing of swinging by the buoy 2, so that the float 1 meanders as indicated by a virtual line in the figure. Thus, since the float 1 swings differently from the wave, the wave can be effectively extinguished.
That is, the buoy 2 always has its own return force on the sea, and the return force is elastic and the buoy 2, the mooring line 4 and the anchor 3 form a vertical relationship with the sea floor, and the wave breaking fence on the sea. The form that connects the two buoys becomes a horizontal relationship, and by these relationships, an independent wave (wave) is generated in addition to the ocean wave, and a stronger wave-extinguishing function is exhibited and the ocean wave is extinguished. It will be.

(First Embodiment)
Fig.5 (a) has shown the floating body structure 200 which concerns on 1st Embodiment of this invention. The floating body structure 200 is formed in a bowl shape by connecting a plurality of floats 201,... In parallel, and is used as a jetty or a wave-dissipating body.

  As shown in FIG. 4A, the float 201 is provided so as to penetrate the soft foamed resin portion 213 formed in a long shape having a substantially crank-shaped cross section and the soft foamed resin portion 213 in the longitudinal direction. , Four wire (inertial members) 211, 211,..., A wire covering portion 212 that covers the wires 211, and a foamed resin coating portion 214 that covers the soft foam resin portion 213. The float 201 is provided with ridges 201a and dents 201b on the side surfaces, and the adjacent floats 201 and 201 are bolts by fitting the ridges 201a to the dents 201b as shown in FIG. -It is connected by a nut.

  The foamed resin coating 214 may be formed of foamed polystyrene, hard plastic, wood, bamboo, ceramic, or the like in addition to soft resin such as vinyl chloride, nylon, polyester, polyethylene, or the like. In addition, while the foamed resin covering portion 214 is formed of a soft resin, a soft resin film such as nylon, polyethylene, rubber or the like near the surface of the soft foamed resin 213, cotton, cotton, wool, cotton polyester blend, nonwoven fabric, etc. Solid materials such as cloth and ceramic can also be embedded.

  Furthermore, in order to improve the strength of the float 1 and improve the balance of the posture on the wave, a metal such as iron, copper, lead, or ceramics may be embedded in an appropriate place inside. Further, as the inertia member, a woven mesh or a punching metal may be arranged at an intermediate height position of the soft foamed resin portion. By carrying out like this, a mesh and punching metal can be made to play the role of both a reinforcement member and an inertia member. The mesh or the like may be a plurality of layers, or may be wound in a coil shape.

FIGS. 4B and 4C show floats 301A and 301B for forming another floating body structure 300 (see FIG. 5B) according to the first embodiment.

The float 301A and the float 301B each have a substantially H-shaped cross section and a substantially cross-shaped cross section. As shown in FIG. 5 (b), the recess 301Ab is fitted to the protrusion 301Ba of the float 301B, and the bolt By connecting with a nut, a bowl-like floating structure 300 is formed.
In the figure, reference numerals 311A and 311B denote wires, 312A and 312B denote wire covering portions, 313A and 313B denote soft foamed resin portions, and 314A and 314B denote foamed resin covering portions.

  The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the float is not limited to the above shape, but has a known shape such as a cylindrical shape, a triangular prism, a quadrangular column, a pentagonal column, a hexagonal column, an octagonal column, other polygonal columns, a spherical shape, an elliptical spherical shape, a triangular pyramid shape, and a quadrangular pyramid shape. It can be selected as appropriate. The inertia member is not limited to a metal wire or mesh, and can be appropriately used as long as it forms a solid and generates appropriate inertia.

Moreover, the curtain part 5 can be abbreviate | omitted in the floating structure 100 of a 1st reference form. Alternatively, the buoy 2 may be omitted and the mooring line 4 may be directly coupled to the float 1. The mooring line 4 may use a wire. Mooring lines, anchors, and buoys may be provided on the bowl-shaped floating structures 200, 300A, and 300B.

The foamed resin portion is not limited to a soft foamed resin, and may be a hard foamed resin such as polystyrene foam. When using a hard foamed resin, it is advisable to place a large number of short columnar foamed resins in the longitudinal direction of the wire in an outer ring around the wire. In this case, the wire can swing within the polystyrene foam. It is preferable that the hole through which the foamed polystyrene wire is passed is larger than the wire diameter.

  In addition, the shape of the floating structure of the present invention when installed on the sea is not limited to the single character shape as shown in FIG. 1, but the shape of the coast, the sea where you want to spread waves or spread oil and silt. Depending on the shape, it can be formed in an appropriate shape. Floats may be arranged in a U-shape to surround the coastline, or may be provided to close a certain sea area by forming a closed curve such as a rectangle, triangle, hexagon, etc. it can.

  Since the float and floating structure of the present invention are easy to wind up the float part, the sea, lake, river, gulf coast, inlet, artificial lake, etc., such as wave break fences, oil fences, silt fences, wave breakers, aquaculture ridges, etc. It can be suitably used for various fences and fences used in places.

100, 200, 300A, 300B Floating structure 1,201, 301A, 301B Float 11, 211, 311A, 311B Wire (inertial member)
13, 213, 313A, 313B Foamed resin part 2 Buoy 3 Anchor 4 Mooring lines 201a, 301Ba Convex 201b, 301Ab Concave

Claims (3)

An inertia member;
A foamed resin portion cormorants covering the inertia member,
A foamed resin covering portion for covering the front Symbol onset foam resin portion,
A plurality of floats having
The float has a concave stripe and / or a convex stripe on a side surface, and the adjacent float is connected in a hook shape by engaging the convex stripe with the concave stripe . A buoy coupled to the float;
An anchor mooring the buoy;
A mooring line connecting the buoy and the anchor;
With
The floating structure according to claim 1, wherein the mooring line has a length that can be stretched in a state where the mooring line is slackened into a character.   The floating structure according to claim 1, wherein the foamed resin portion is made of a soft foamed resin.

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