JP2010246437A - Floating fish bank - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a floating fish bank capable of regulating the buoyancy so as to take a position matching to the speed of the tide between a state in which a part of the fish bank body protrudes from the sea surface, and a state in which the whole of the fish bank body is positioned under the sea surface, having a mark buoy for allowing the position of the fish bank to be visually observed when the fish bank body sinks under the sea surface, and preventing an anchor cable of the mark buoy from coiling around the fish bank body even when the mark buoy moves so as to turn around the periphery of the fish bank body. <P>SOLUTION: The floating fish bank having the fish bank body 3 to be moored at the vicinity of the sea surface through a mooring rope bound to an anchor set on the sea bottom includes a ring-shaped member 11 provided along the outer periphery of a safety fence 9 stood on the upper surface part of the fish bank body 3 through proper attaching brackets. The mark buoy is freely turnable around the fish bank body 3 by attaching a moving member 13 to the ring-shaped member 11 so as to be freely slidable in the perimeter direction, and binding one terminal part of the buoy-mooring rope 6 to the moving member 13. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a floating fish reef moored in the vicinity of the sea surface via a mooring line coupled to an anchor set on the seabed.

  A floating reef, which consists of a reef body with buoyancy, anchors set on the seabed, and mooring lines connecting these reef bodies and anchors, is different from a set-up type reef that targets bottom fish. It is spreading as something that expects the effect of collecting migratory fish. As a form of this type of floating fish reef, a surface floating fish reef (Patent Document 1) where a part of the fish reef body always appears on the sea surface, and the fish reef body is installed at a predetermined depth below the sea surface. It is roughly divided into middle-level floating fish reefs that do not appear (Patent Document 2).

With regard to the former surface floating fish reef, the present inventor aims to reduce the load on the mooring line and improve its durability. It has already been proposed that the state where the fish reef is maintained is maintained and the fish reef body is drawn below the sea surface when the tide becomes faster (Patent Document 3). In such a surface floating fish reef, a buoy mooring line is installed separately from the sign light attached to the upper part of the reef body in order to avoid the danger that the ship collides against the reef body when it is submerged under the sea surface. A sign buoy is attached through.

JP-A-6-14675 Japanese Utility Model Publication No. 58-36270 JP 2007-236291 A

In the above surface floating fish reef, the marker buoy is attached by securing one end of the buoy mooring line to the fish reef body as it is. However, this marker buoy may move around the fish reef body due to changes in tidal currents. As a result, there is a problem that the buoy mooring line tends to get entangled with the fish reef body, and the buoy mooring line is severed in the worst case.

The present invention has been made in view of these problems of the prior art, and the sign buoy can freely move around the reef body following changes in the tidal current, thereby connecting the reef body and the sign buoy. The purpose is to provide a floating reef that does not break the buoy mooring line.

In order to solve the above-described problems of the prior art, in the invention according to claim 1 of the present application, the fish reef body is moored in a floating state near the sea surface via a mooring line coupled to an anchor submerged on the sea floor. In a floating fish reef to which a marker buoy is attached via a buoy mooring line, an annular member is disposed substantially concentrically outside the upper part of the fish reef body, and the annular member is moved in the circumferential direction. A technical means was adopted in which one end of the buoy mooring line was coupled to a movable member that was engaged.

Furthermore, in the floating fish reef according to claim 1, it is possible to use an annular member having a structure in which rods having an outer diameter larger than the thickness of the strip plate are joined along both side surfaces of the strip plate bent in a circular shape. (Claim 2). When such an annular member is used, as a moving member to be engaged with the annular member, a deposit removing means is provided on the surface facing the annular member, and the surface of the annular member is attached from the sea. The kimono may be peeled off along with the movement (claim 3).

In the floating fish reef which concerns on this invention, the following effects can be acquired by employ | adopting the above structures.
(1) Because one end of the buoy mooring line is joined to a moving member that is attached to the annular member installed substantially concentrically outside the upper part of the fish reef body so that it can move in the circumferential direction. When the sign buoy moves around the reef body in response to changes in the tidal current, the moving member connected to the sign buoy via the buoy mooring line moves on the annular member as the sign buoy moves. By moving in the moving direction, the buoy mooring line can be prevented from being entangled with the fish reef body.
(2) A sign buoy connected to the other end of a buoy mooring line having a sufficient length is in a state of floating above the sea surface even when the reef body sinks below the sea surface due to a fast tide. Therefore, the presence of the fish reef body hidden under the sea surface is surely recognized from the sea by the sign buoy.
(3) When using an annular member in which a rod having an outer diameter larger than the thickness of the belt-like plate material is joined to both side portions of the belt-like plate material bent in a circle, the moving member can easily move on the annular member, Wear on the contact surface with the moving member can be reduced, which is also advantageous from the viewpoint of manufacturing cost.
(4) For an annular member having the above-described configuration formed from a belt-like plate material or the like, it is convenient to apply a moving member provided with a deposit removing means on the surface facing the annular member. When deposits from the sea, such as oysters, adhere to the surface of the annular member, they are attached to the initial stage by the deposit removal means of the moving member that moves on the annular member as the marker buoy moves. Since it can peel off, it is effective in ensuring the smooth operation | movement of a moving member.

It is a schematic block diagram of the floating fish reef which concerns on this invention. It is the front view which expanded the upper part of the fish reef main body. It is the top view to which the upper part of the fish reef main body was expanded. It is sectional drawing which showed the relationship between an annular member and a moving member. FIG. 5 is a front view of FIG. 4. It is sectional drawing which shows the other example of a moving member. It is sectional drawing which shows the other example of a moving member. It is sectional drawing which shows the other example of a moving member.

In the present invention, the reef body is positioned between the state where a part of the reef body is above the sea surface and the state where the whole reef body is located below the sea surface so that the reef body is positioned according to the speed of the tide. The buoyancy of the fish reef body is adjusted, and the latter is equipped with a sign buoy for visually recognizing the position when it is sinking under the sea surface from a marine vessel, etc. There is a big feature. That is, by combining the annular member and the moving member, the coupling portion of the buoy mooring line with respect to the fish reef body can be moved to any position on the entire circumference of the fish reef body. By adopting such a structure, the above-mentioned connection point follows the movement of the marker buoy in the circumferential direction due to changes in tidal current, etc., and effectively entangles the buoy mooring line with the fish reef body. It can be blocked.

As the annular member used in the present invention, a stainless steel plate is preferable from the viewpoint of durability and workability. In this case, the belt-like plate material cut into a suitable width is bent into a circular shape, and a stainless steel round bar is bonded to the side surface portion. In addition, an annular member is not limited to what consists of a strip | belt-shaped board | plate material etc., A round bar-like thing may be sufficient. In addition, the fish reef body to which the annular member is to be attached does not necessarily have a circular shape in plan view. In short, if it is arranged concentrically with the annular member, the entire circumference can be freely rotated. It is. On the other hand, it is desirable that the moving member mounted so as to be movable in the circumferential direction on the annular member is light in weight in order to realize smooth movement, and also requires rust prevention performance like the annular member. Is done. From these points, plastic materials are preferable, but high mechanical strength and low friction are also important requirements. Specific examples include a plastic composition such as nylon blended with molybdenum disulfide, but other materials can also be applied. Embodiments of the present invention will be described below with reference to the drawings. However, the present invention is not limited to the embodiments, and various modifications can be made within the technical idea of the present invention.

  FIG. 1 is an embodiment of a floating fish reef according to the present invention, and shows the overall schematic configuration. The illustrated floating fish reef 1 includes an anchor 2 installed on the seabed, a hollow cylindrical fish reef body 3 having buoyancy, a mooring line 4 connecting the anchor 2 and the fish reef body 3, a sign buoy 5, and this sign The buoy mooring line 6 connects the buoy 5 to the upper part of the reef body 3. Such a floating reef 1 maintains a state where the upper part of the reef body 3 is always on the sea surface at a predetermined tidal velocity and is classified as a surface floating fish reef. However, when the tidal velocity increases, Designed to sink into. It is desirable that the length of the buoy mooring line 6 be equal to or greater than the draft of the ship that navigates the sea area where the floating fish reef 1 is installed. Thereby, in the state where the sign buoy 5 is pulled into the sea, the depth from the sea surface to the fish reef body 3 is equal to or greater than the draft of the ship navigating the sea area, so that the risk of the ship colliding with the fish reef body 3 is avoided. be able to. In the present embodiment, the auxiliary buoy 7 exists in the middle of the buoy mooring line 6, but this auxiliary buoy 7 is for reducing the settlement of the buoy mooring line 6. Therefore, it is not necessary depending on the length of the buoy mooring line 6 and may be provided as necessary. The member indicated by 8 in the figure is a secondary mooring line, which is used to stably connect the fish reef body 3 to the thick mooring line 4 (main mooring line). Thus, a plurality of slender cables are provided between the mooring cable 4 and the fish reef body 3. In this fish reef body 3, a large number of floating bodies 3a (see FIG. 2) made of hollow spheres for generating sufficient buoyancy are stored on the upper side of the hollow portion of the cage-shaped frame made of fiber-reinforced plastic, A weight is provided on the lower side, and it is designed to float upright against static seawater due to the balance between the two.

  2 and 3 are an enlarged front view and a plan view of the upper part of the fish reef body 3, respectively. On the upper surface of the fish reef body 3, a pair of safety fences 9 formed by integrating a plurality of pipes in a lattice shape and a substantially semicircular shape are erected in a facing state at a position close to the outer periphery of the fish reef body 3. A marker lamp 10 is provided in the section. Further, an annular member 11 is provided outside the pair of safety fences 9 so as to surround the safety fence 9, and the annular member 11 has a concentric relationship with the fish reef body 3. As shown in FIG. 3, the annular member 11 is fixed to the safety fence 9 at a predetermined interval by brackets 12 arranged on the outer peripheral side of the safety fence 9. The moving member 13 is disposed on the outer peripheral surface side of the annular member 11 and is engaged so as to be movable in the circumferential direction. Further, a buoy mooring line 6 is coupled to the outer peripheral surface side of the moving member 13.

  4 and 5 are an enlarged cross-sectional view and a front view, respectively, showing the relationship between the annular member 11 and the moving member 13. The annular member 11 is formed by bending a stainless plate 11a cut into a strip shape into a cylindrical shape, and further joining stainless round bars 11b to both side portions thereof, and is joined to the bracket 12 on the inner peripheral surface side. As shown in FIG. 4, the moving member 13 is formed in a substantially U shape when viewed from the side, and a main member 13 a disposed on the outer peripheral surface side of the annular member 11, The sub members 13b and 13b to be arranged are connected and integrated by bolts 13c and nuts 13d penetrating them in the vertical direction. An eyebolt 13e is joined to the outer peripheral surface of the main member 13a, and the buoy mooring line 6 is joined using this. The upper and lower sub-members 13b and 13b are each substantially L-shaped when viewed from the side, and the end opposite to the joint with the main member 13a exceeds the upper and lower stainless steel round bars 11b and 11b in the annular member 11. It goes around to the inner peripheral surface side. By adopting such a shape, the moving member 13 is easily attached to the annular member 11 and is configured not to be detached from the annular member 11 after the attachment. These three members 13a, 13b, and 13b are made of a material having high mechanical strength and low friction such as nylon blended with molybdenum disulfide. The distance between the inner surfaces of the upper and lower sub-members 13b is 1/20 to 1/30 of the width of the annular member 11 (the sum of the width of the belt-like stainless steel plate 11a and the outer diameter of the upper and lower stainless steel round bars 11b). Set to the dimension with added thickness. Thus, by providing an appropriate gap between the contact surfaces of the two, the moving member 13 slides smoothly on the annular member 11 in the circumferential direction.

  6 to 8 show the main part of another embodiment of the moving member. Since the bolts, nuts, and eyebolts are common in any of the embodiments, the description thereof is omitted and the description is omitted for the overlapping portions. Since this type of floating fish reef repeatedly sinks or floats in seawater, the reef body part is of course, and barnacles, oysters, etc. are likely to adhere to the surface of the annular member 11. These moving members are provided with a removing means for stripping off the adhering substances adhering to the surface of the annular member 11. In the moving member 14 shown in FIG. 6, the brush 14a is provided so that it may contact | abut to the full width of the outer peripheral surface of the annular member 11, and the edge part of an internal peripheral surface. The material of the brush 14a is preferably flexible. In the moving member 15 of FIG. 7, a sponge-like cloth 15a is attached instead of the brush 14a. Furthermore, in the moving member 16 of FIG. 8, a roller 16 a that faces the outer peripheral surface of the annular member 11 is provided. When such moving members 14 to 16 are used, the moving members 14 to 16 move in the circumferential direction on the annular member 11 along with the movement of the marker buoy 5. By providing 16a, the deposits from the sea can be removed at an early stage, which is extremely effective in ensuring free movement of the marker buoy 5 over a long period of time.

  In the present invention, the reef body is positioned between the state where a part of the reef body is above the sea surface and the state where the whole reef body is located below the sea surface so that the reef body is positioned according to the speed of the tide. A buoy mooring line that has a sign buoy with a sign buoy for adjusting the buoyancy of the fish reef body, and further observing the position of the latter when it is sinking under the sea surface from a marine vessel, etc. Is not entangled with the main body of the fish reef, and maintenance labor can be saved.

  DESCRIPTION OF SYMBOLS 1 ... Floating fish reef, 2 ... Anchor, 3 ... Fish reef body, 4 ... Mooring line, 5 ... Marking buoy, 6 ... Buoy mooring line, 7 ... Auxiliary buoy, 8 ... Secondary mooring line, 9 ... Safety fence, 10 ... Marking light , 11 ... annular member, 12 ... bracket, 13, 14, 15, 16 ... moving member, 14a, 15a, 16a ... deposit removal means

Claims (3)

In a floating reef where a fish reef body is moored in a floating state near the sea surface via a mooring line coupled to an anchor set on the sea floor, a sign buoy is attached to the fish reef body via a buoy mooring line. An annular member is arranged substantially concentrically on the upper outer side, and one end of the buoy mooring line is coupled to a moving member that is attached to the annular member so as to be movable in the circumferential direction. A floating reef characterized by that. 2. The floating fish reef according to claim 1, wherein the annular member is formed by joining rod members having an outer diameter larger than the thickness of the strip-shaped plate member along both side portions of the strip-shaped plate member bent in a circular shape. . The floating fish reef according to claim 2, wherein the moving member includes a deposit removing means on a surface facing the annular member.

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