JP2617916B2 - Rubber-like elastic mooring device - Google Patents

Description

The present invention relates to a device for mooring a rubber-like elastic body, for example, prevention of diffusion of oil floating on the sea, prevention of diffusion of sediment during dredging work or construction work of a water bottom. The present invention also relates to a mooring device for floating rubber-like elastic bodies, such as a so-called oil fence, silt fence, shore diverter, fixed net lifting device, and the like for mooring floating structures on the sea.

(Conventional technology) As a conventional mooring device for a rubber-like elastic body, there is, for example, a mooring device 2 for an oil fence 1 shown in Figs.
An oil fence 1 shown in FIGS. 5 to 7 has a floating body 3 having a circular cross section made of a rubber-like elastic member at the upper part, and a plate-shaped so-called fin made of a rubber-like elastic member connected to the lower side of the floating body 3. Part 4. The anchor mounting plate 6 is provided on both sides of the long oil fence 1 so as to face the fin portion 4 at a predetermined interval, and the through holes 7 provided in the fin portion 4 are provided.
Are fixed to the fin portion 4 by bolts 8 and nuts 9 penetrating through the fins. A hook 10 is fixed to the center part 6a of the anchor mounting plate 6 toward the outside of the anchor mounting plate 6,
The rope 10 is connected to one end 12a of a rope 12 via a shackle 11, and is fixed to the seabed by an anchor (not shown) at the other end 12b of the rope 12.

(Problems to be Solved by the Invention) However, when such an oil fence 1 is used on the sea, as shown in FIG. 8, a repetitive force f acts on the oil fence 1 due to a tide or a wind wave. Since these forces f concentrate on the mooring device 2 fixed to the seabed and exert a large force F on the mooring device 2, the anchor mounting plate 6 of the mooring device 2 is required to support these forces F. ,
There is a problem that the area must be increased to increase the contact area with the fin portion 4 and the number of mounting bolts 8 to the fin portion 4 must be increased. Further, as shown in FIG. 9, the anchor mounting plate (the same reference numeral is used for the same configuration) is expensive and has a large flexure (Fiber Reinforcement).
The number of the mounting bolts 8 must be increased by using the plastics plate 15 and the reinforcing plate 16 for reinforcement, so that the mooring device 2 becomes expensive, the mounting man-hour increases, and the working efficiency decreases. There is also a problem.

Therefore, an object of the present invention is to provide a rubber-like elastic body mooring device that is inexpensive, can reduce the number of mounting steps, and can improve work efficiency.

(Means for Solving the Problems) A mooring device for a rubber-like elastic body according to the present invention is a mooring device for mooring a rubber-like elastic body floating on water with a mooring plate-shaped portion provided on the elastic body. A pair of plate-like bodies made of a material stronger than the plate-like part of the rubber-like elastic body and facing one side or the other side of the plate-like part of the rubber-like elastic body, and the rubber-like elastic body A connecting member that penetrates through the plate-like portions of the rubber-like elastic body to connect the pair of plate-like bodies to each other, and fixes the plate-like portion of the rubber-like elastic body to the pair of plate-like bodies. Means, a locking member mounted on the surface of the plate-shaped portion opposite to the rubber-like elastic body, and a locking member fixed at one end to the plate-shaped member via the locking member and fixed at the other end. A mooring member locked at a position, and protruding toward the rubber-like elastic body and extending in a predetermined direction intersecting a horizontal plane. And a ridge member fixed to at least one of the plate-like members as described above.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a view showing an embodiment in which a rubber-like elastic body mooring device according to the present invention is attached to an oil fence, and is a view corresponding to FIG. 7 shown in the prior art. In FIG. 1, reference numeral 21 denotes an oil fence mooring device for mooring an oil fence (rubber-like elastic body) 22 floating on water. The oil fence 22 is the same as that shown in FIGS. 5 to 8 of the prior art, and will be described with reference to FIG. Oil fence
A long floating body 3 having a substantially circular cross section made of two layers of rubber-coated canvas is provided at the upper part of the base 22, and a plate-shaped fin part 4 is integrally provided with the lower part 3 a of the floating body 3. Have been. As shown in FIG. 1, the fin portion 4 is composed of a plate-like fin in which two layers of canvas (shown by dotted lines in FIG. 1) 24 continuous from the floating body 3 and covered with rubber 23 are integrally laminated. The part 4 is formed. The mooring device 21 includes a pair of plate-like members 26 that sandwich the fin portion (plate-like portion) 4 of the oil fence 22 from both sides, and a through-hole 27 provided in the fin portion 4. 28 and nut 29 for fixing the
(Fixing means) and a hook 33 provided at the central portion 26a of the plate-like body 26 via a shackle (not shown) at one end 32a.
And a mooring means 32 having a rope (not shown) for mooring the other end (not shown) at a predetermined position by an anchor. Here, the pair of plate-like members 26 are made of metal, that is, made of a material that is stronger than the oil fence 22 which is a rubber-like elastic member, and the bolt 28 penetrates the fin portion 4 of the oil fence 21 and It is a connecting member for connecting 26 members. The hook 33, the shackle, the rope, and the anchor constitute mooring means, and the hook 33 is a plate-like body.
26 is a locking member which is integrally mounted on the side opposite to the fin portion 4 and locks one end of the rope (mooring member).

Reference numeral 35 denotes a metal round bar (projection member). The round bar 35 includes both a bolt 28 and a nut 29 in the horizontal direction (indicated by an arrow A) outside the pair of plate-like bodies 26 facing the inside 26b. Are arranged side by side, and project inward from the inner side 26b of the plate-like body 26, extend in a predetermined direction intersecting with the horizontal plane, and face the facing round bars 35 so that they are shifted from each other in the horizontal direction A. They are arranged in a zigzag pattern and fixed to the plate-like body 26.

 Next, the operation will be described.

The rubber-like elastic body mooring device 21 of the present invention includes a pair of plate-like bodies.
The fin portion 4 of the oil fence 22 is sandwiched between the opposite sides of the oil fence 22 and fixed with bolts 28 and nuts 29, and the fin portion 4 is fixed to the plate-like body 26. Two round rods 35 are arranged on the inner sides 26b of the pair of plate-like bodies 26 on the outer sides in the horizontal direction A of the bolts 28 and the nuts 29, respectively. Direction, so that even if a large force substantially in the water surface direction acts between the moored plate-shaped portion 26 and the oil fence 22 floating on the water surface, this force corresponds to the round bar 35. It will be distributed and carried in the fastening region extending widely in a predetermined direction intersecting with the horizontal plane. Therefore, although the number of bolts 28 is small, stress concentration in the fin portion 4 can be reliably avoided, and a sufficient resistance against the force can be exerted. Mooring work such as locking work to the vehicle can be greatly reduced. Further, in the present embodiment, the plurality of round bars 35 are arranged in a staggered manner so as to be shifted from each other in the horizontal direction (the direction of arrow A in FIG. 1).
In addition to ensuring a large contact area between the round bar 35 and the fin portion 4, the fin portion 4 made of a rubber-like elastic body is largely bent and fixed as shown in FIG. For this reason, even if the oil fence 22 exerts a large force F on the mooring device 21 due to the tide or wind wave, the oil fence 22 exerts a greater resistance to the above-described wide tightening region in the vertical direction by the round bar 35 and a large bending of the fin portion. . Therefore, it is not necessary to increase the area of the anchor mounting plate 6 or increase the number of mounting bolts as in the conventional rubber-like elastic body mooring device, and it is also necessary to use an expensive FRP plate or reinforcing plate. There is no increase in the number of mounting steps when used.

In the above-described embodiment, the case where two metal round bars are arranged side by side for the protruding portion has been described.
In the present invention, not limited to this embodiment, the cross section of the projection may be triangular or quadrangular as shown in FIGS.
It may be a polygon such as a hexagon (the same mechanism is provided with the same elasticity). In addition, the number may be at least one or more, as long as the contact area with the rubber-like elastic body is not a rod-like like a round bar but a hemispherical, semi-polygonal or other protruding body. Good.

Next, two kinds of test samples (sample A of the present invention and sample B of the present invention) were prepared, and the efficiency of the present invention was confirmed.

As shown in FIG. 4, the sample A of the present invention has a rubber (elastic body) having a belt having four layers of canvas (width of 250 m).
m, thickness t20mm) 41, and prepare this belt 41 on both sides
41a, sandwiched between a pair of metal plates (plate-like bodies) 42, two rows C and D
(3 bolts in each row) were fixed with six bolts (not shown) arranged in a line. On the inner side 42a facing the metal plate 42,
Three round bars 45 made of metal having a diameter of 10 mm (length of the belt 41 in the width direction of 250 mm) 45 are fixed so as to be arranged in a staggered manner as shown in the figure. The sample A was tested for tensile breaking strength in the B direction using a conventional tensile tester. The breaking strength was 70 to 75% of the tensile strength of the belt alone.

On the other hand, the conventional sample B does not have the round bar 45, and the belt 41 is fixed to the metal plate 42 with only the bolts. The breaking strength was measured in the same manner as in Sample A. Sample B
The breaking strength was 10 to 28% of the tensile strength of the belt alone, and there was a significant decrease in strength.

As can be seen from the test results of the breaking strength of the samples A and B, the breaking strength of the sample A according to the present invention is about 2.5 times that of the conventional sample B, and the strength can be greatly improved.

(Effects) As described above, according to the present invention, a rubber-like elastic body is sandwiched between a pair of strong plate-like bodies using a ridge member extending in a predetermined direction crossing a horizontal plane. Therefore, even if a large force is repeatedly applied between the moored plate-like portion and the rubber-like elastic body floating on the water surface, the force extends widely in a predetermined direction corresponding to the ridge member in a direction intersecting the horizontal plane. And can be carried in a distributed manner in the fastening region. As a result, even if the number of connecting members is reduced, it is possible to exert a sufficient resistance against the above while reliably avoiding stress concentration in the plate-shaped portion of the rubber-like elastic body, and to mount the connecting members and the locking members. Mooring work such as locking work to the plate-shaped portion can be greatly reduced. Further, since the ridge member is extremely simple and the number of parts of the connecting member can be reduced, an inexpensive mooring device can be provided, and the connecting member and the like can be attached to the mooring work and the plate-like body can be provided. Thus, the number of steps for locking the mooring member can be reduced, and the mooring operation can be greatly facilitated.

[Brief description of the drawings]

FIG. 1 is a bottom view showing a state in which an embodiment of a mooring device for a rubber-like elastic body according to the present invention is attached to an oil fence 22. 2 and 3 are views showing another embodiment of the plate-like body 26 of the rubber-like elastic body mooring device according to the present invention, and FIG. 2 (a) is a partial plan view thereof. 2 (b) is a partial front view of FIG. 2 (a), FIG. 3 (a) is a partial plan view thereof, and FIG. 3 (b) is a partial front view of FIG. 3 (a). It is.
FIG. 4 is a side view showing a test sample of the mooring device for a rubber-like elastic body of the present invention. 5 to 9 are views showing a conventional rubber-like elastic body mooring device, FIG. 5 is a perspective view thereof, FIG. 6 is a sectional view taken along the line VI-VI of FIG. 5, and FIG. FIG. 8 is a conceptual view for explaining the operation, and FIG. 9 is a perspective view showing another conventional example. 4 ... fin (plate-like part), 21 ... mooring device, 22 ... oil fence (rubber-like elastic body), 23 ... rubber, 24 ... canvas, 26 ... plate-like body, 26a ... center Part, 26b ... inside,
27 ... through-hole, 28 ... bolt (connecting member, fixing means),
29 ... nut (fixing means), 32 ... mooring means, 33 ... hook (locking member), 35 ... round bar (projecting member).

Claims (1)

(57) [Claims] 1. A mooring device for mooring a rubber-like elastic body floating on water with a mooring plate-shaped portion provided on the elastic body, wherein the material is made of a material stronger than the plate-shaped portion of the rubber-like elastic body. A pair of plate-like bodies facing one side or the other side of the plate-like part of the rubber-like elastic body, and connecting the pair of plate-like bodies through the plate-like part of the rubber-like elastic body. Fixing means for fixing the plate-like portion of the rubber-like elastic body by sandwiching the plate-like portion between the pair of plate-like bodies by the connection member; A locking member attached to the body surface side, and one end side locked to the plate-like body via the locking member,
A mooring member locked at a predetermined position on the other end side, and a ridge protruding toward the rubber-like elastic body and fixed to at least one of the plate-like bodies so as to extend in a predetermined direction crossing a horizontal plane A mooring device for a rubber-like elastic body, comprising: a member;