JP7035290B2 - Precious coral collector - Google Patents

Description

The present invention relates to a jewel coral collecting tool for collecting jewel coral after growing it.

Reef-building corals are declining due to a series of deaths that are thought to be caused by recent warming. In response to this situation, various reef-building coral breeding reefs have been proposed. Reef-building coral breeding reefs refer to submerged structures (including structures that float in the sea) for growing reef-building coral offspring that have been implanted or held in advance. Coral reefs are formed by laying a large number of reef-building coral breeding reefs on which a large number of offspring have been settled or retained.

Patent Document 1 is a reef-building coral breeding reef (coral setting block) which is a concrete block body having an inclined surface on an upper surface, forming an inclined groove in an inclined direction on the inclined surface, and installing a support rod on the inclined surface. ) (Patent Document 1 · [Claim 1]) and a coral settlement base composed of a biological habitat block which is a concrete block (Patent Document 1 · [Claim 3]). The reef-building coral breeding reef disclosed in Patent Document 1 has an effect that the uneven surface contributes to the establishment of the reef-building coral (Patent Document 1 [0006]).

Patent Document 2 discloses a reef-building coral breeding reef (landscaping block) made of hardened coal ash or concrete and having a seedling (coral seedling) embedded therein. The reef-building coral breeding reefs are laid side by side in the transplanted sea area to form a transplanted mound (Patent Document 2 [Claim 1]). In the transplantation mound disclosed in Patent Document 2, reef-building coral breeding reefs can be arranged three-dimensionally according to the topography of the seabed, and coral reefs can be cultivated by combining various substrains embedded in each reef-building coral breeding reef. It is said that it can be done (Patent Document 2, [0005]).

Japanese Unexamined Patent Publication No. 2011-125239 Japanese Unexamined Patent Publication No. 11-308939

By the way, jewel corals, like reef-building corals, are also on the decline due to the effects of warming and overfishing. Therefore, in order to propagate the precious coral, it is considered to grow the precious coral by using the reef-building coral breeding reef disclosed in Patent Document 1 or Patent Document 2. Specifically, the jewel coral seedlings are planted on the reef-building coral breeding reef disclosed in Patent Document 1 or Patent Document 2 and installed on the seabed, and collected when the jewel coral is sufficiently cultivated. However, there is a problem in using the reef-building coral breeding reef disclosed in Patent Document 1 or Patent Document 2 for breeding and collecting jewel coral.

Precious corals are said to inhabit the seabed at a depth of 100 m or more. For this reason, the reef-building coral breeding reef disclosed in Patent Document 1 or Patent Document 2 in which the precious coral seedlings are planted must be submerged in the seabed at the depth of the water. However, the reef-building coral breeding reef disclosed in Patent Document 1 or Patent Document 2 has no means for recovering from the water depth. Therefore, in order to collect the cultivated jewel coral, it is necessary to hook it on the coral net and collect it as before. This is not preferable because the reef-building coral breeding reef becomes disposable and the jewel coral grown over time is broken, which reduces the value as a decorative item.

The reef-building coral is not premised on being collected, and the reef-building coral breeding reef may be thrown away to form a coral reef. However, on the premise of collecting jewel coral, we would like to collect the used reef-building coral reefs to avoid excessive destruction of the habitat. As described above, it is difficult to grow jewel coral using the reef-building coral breeding reef disclosed in Patent Document 1 or Patent Document 2. Therefore, we examined the development of a jewel coral collection tool that can grow jewel corals and, if possible, collect jewel corals without breaking them.

What was developed as a result of the examination was to fix the breeding base on which the precious coral seedlings were planted below the center of gravity of the frame, and to provide a collection frame above the center of gravity of the frame to hook the hook for collection. It is a jewel coral collecting tool that is composed. The frame body is constructed by assembling a rod body. The rod may be made of resin or a resin-coated metal pipe as long as the required strength can be secured. However, from the viewpoint of reducing the projected area in order to reduce the resistance of the jewel coral collecting tool during settling while considering the corrosion during the sunk period of the jewel coral collecting tool, the rods constituting the frame have a corrosion allowance. A solid structure having an added outer shape is preferable. The growing base is a block that is fixed to the frame with the jewel coral planted, and may have a structure that does not fall off from the frame until after the jewel coral growing period has elapsed.

In the jewel coral collecting tool of the present invention, a growing base in which a jewel coral seedling is planted is sunk together with the frame, and after the jewel coral growing period elapses, the growing base is collected together with the frame. The collection frame hooks a hook for collection so that the growing base can be collected together with the frame body. By arranging the growing base below the center of gravity and the collecting frame above the frame, the posture of the settling jewel coral collecting tool is maintained in the posture where the collecting frame is located above the growing base. As a result, the sunk jewel coral collecting tool may place a collection frame above the frame surrounding the growing base, and when the recovery hook is caught in the collecting frame, it may come into contact with the cultivated jewel coral of the growing base. To get rid of.

The recovery hook is attached to, for example, the lower end of a rope dropped from the ship into the sea, and is hooked on the recovery frame by pulling it in the sea due to the movement of the ship. At this time, the rope may come off the collection frame while being pulled while contacting the collection frame in advance. Therefore, the recovery frame may be configured to have stopper portions at both ends of the horizontally extending engagement rods to form a convex step with respect to the engagement rods. Even if the rope is rubbed against the engagement rod and approaches the end portion, the rope is hooked on the stopper portion, does not come off from the engagement rod, and the hook is caught on the engagement rod.

The collection frame may be attached separately to the frame body for fixing the growing base, or a component of the frame body located above the center of gravity of the frame body may be used. Specifically, the recovery frame has a configuration in which the horizontal rods of the frame body are used as engagement rods, and the crossing rods intersecting at both ends of the horizontal rods are used as stoppers. The frame is a square frame in which a metal rod body assembled in a rectangular shape is used as a base, a metal rod body to be a pillar is erected at four corners of the base, and a beam and a metal rod body to be a girder are hung on the pillar. In the case, the engaging rod is a beam and a girder, and the stopper portion is the upper end portion of the column.

When considering the collection of jewel coral, a jewel coral collecting tool that can easily collect jewel coral after hooking the collection frame and pulling it up is preferable. From now on, the growing base may be a block body or a plate body in which a jewel coral seedling is planted on the upper surface, and may be detachably attached to the frame body. The block body or plate body is made of, for example, concrete or mortar. As the attachment / detachment means, various conventionally known means can be used. For example, if the structure is such that the base side insertion hole penetrated through the growing base and the frame side insertion hole provided in the frame are communicated with each other, and bolts are passed through both of them and tightened with nuts, the jewel coral collecting tool is grown at the time of settling and recovery. It is preferable that the base does not fall off from the frame.

The jewel coral collecting tool of the present invention grows and reliably collects jewel coral. In the past, jewel coral was collected by accidentally hooked on a coral net, so the possibility of collecting it was low because it was accidentally affected. Precious coral collection tools ensure that jewel coral can be collected because the location of the sunk is specified. In addition, the jewel coral collecting tool is cultivated in a state where the jewel coral is surrounded by a collection frame, and the jewel coral is collected by hooking the hook on the collection frame provided in the collection frame. It enables the collection of high-value jewel coral with less risk of breaking. In this way, the jewel coral collecting tool of the present invention has the effect of making the jewel coral collection a stable and commercial business.

The collection frame provided with stoppers at both ends of the engagement rod allows the hook to be hooked on the engagement rod so that the rope does not come off from both ends of the engagement rod. As a result, there is no possibility that the hook does not get caught in the collection frame and the collection of the jewel coral collecting tool fails, and the labor and time required for collecting the jewel coral collecting tool are reduced. Proposals for the effort and time required to collect these precious coral collection tools will lead to the effect of making the collection of precious coral a stable and commercial business.

A collection frame with the horizontal bar of the frame as the engaging bar and the crossing bar that intersects near both ends of the horizontal bar as the stopper is completed by constructing the frame, so it can be manufactured separately or attached to the frame. You don't have to. Further, since the recovery frame is integrally formed with the frame body, there is an advantage that the strength is increased and it becomes easy to withstand the impact when the hook is hooked.

It is a block or plate with jewel coral seedlings planted on the upper surface, and the breeding base that can be attached to and detached from the frame is removable from the frame, so that the jewel coral collection tool can be attached to the water tank together with the seedlings until just before settling. The state of the coral can be maintained by submerging it in the coral, or the coral can be collected by removing it from the frame together with the coral after collecting the precious coral. Further, the growing base, which is a block body or a plate body made of concrete or mortar, also has a function of shifting the center of gravity of the frame body further downward as a heavy object and stabilizing the posture of the jewel coral collecting tool that sinks.

It is a perspective view which shows an example of the jewel coral collecting tool to which this invention was applied. It is a perspective view of the frame which constitutes the jewel coral collecting tool of this example. It is a perspective view of the breeding base which constitutes the jewel coral collecting tool of this example. It is a front view of the jewel coral collecting tool of this example. It is a side view of the jewel coral collecting tool of this example. It is a top view of the jewel coral collecting tool of this example. It is a bottom view of the jewel coral collecting tool of this example. It is a front view which shows the setting procedure of the jewel coral collecting tool of this example. It is a top view which shows the sunk state of the jewel coral collecting tool of this example. It is a front view which shows the collection procedure 1 of the jewel coral collecting tool of this example. It is a front view which shows the state in which the rope which attached the hook for recovery is attached to the lower end is in contact with the beam of a frame body. It is a top view which shows the state which made contact with the beam of a frame body with the rope which attached the hook for recovery to the lower end. It is a front view which shows the collection procedure 2 of the jewel coral collecting tool of this example. It is a perspective view which shows the state of collecting the jewel coral from the jewel coral collecting tool of this example.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. As seen in FIG. 1, for example, the jewel coral collecting tool 1 of the present invention is configured by fixing the growing base 3 to the base 21 of the frame body 2 having a rectangular parallelepiped outer shape with bolts 32 and nuts 33. The jewel coral collecting tool 1 of this example has a configuration in which six breeding bases 3 can be fixed to the frame 2, and three jewel coral seedlings 34 are planted in each breeding base 3. Therefore, in the jewel coral collecting tool 1 of this example, if the child strain 34 can be cultivated well, as many as 18 jewel coral 35 strains can be collected.

As seen in FIG. 2, the frame body 2 is constructed by assembling a solid steel material having a square cross section. The steel materials are fixed to each other by welding. The steel material shall be 30 mm to 45 mm square in consideration of the corrosion allowance. In the frame 2 of this example, a total of 6 joists 22 are hung on a base 21 made by assembling steel materials into a square of 1000 mm square in a horizontal plane, and a total of 6 joists 22 are hung on the inside of the four corners of the base 21. Four steel materials to be pillars 23 with a height of 500 mm are erected along with the pillars 23, and the steel materials to be girders 24 and beams 25 are hung on the pillars 23 at a height of about 400 mm from the steel materials constituting the base 21. It is composed of. The steel material to be the joist 22 is provided with a frame-side insertion hole 221 through which the bolt 32 for fixing the growing base 3 is passed in accordance with the fixing position of the growing base 3. The frame body 2 of this example constructed by assembling such steel materials weighs about 150 kg.

The recovery frame is configured by using the girder 24 and the beam 25 constituting the frame body 2 as horizontal engagement rods and the upper end portion 231 of the pillar 23 protruding upward from the corner where the girder 24 and the beam 25 intersect as a stopper portion. .. The rope 41 to which the hook 42 is attached to the lower end is caught by the upper end portion 231 of the pillar 23 which is the stopper portion located at both ends of the girder 24 or the beam 25 even if it tries to come off, and the rope 41 is caught from the girder 24 or the beam 25. It won't come off. As a result, the hook 42 at the lower end of the rope 41 can be securely hooked on the girder 24 or the beam 25 (see FIG. 12 below).

As seen in FIG. 3, the growing base 3 is composed of a rectangular parallelepiped concrete block body having a square cross section with a width of 60 mm and a height of 40 mm and a length of 500 mm. The growing base 3 of this example is provided with two base-side insertion holes 31 penetrating up and down at positions close to both ends, and child stock receiving holes 341 are provided at equal intervals on the upper surface between the base-side insertion holes 31. The base side insertion hole 31 communicates with the frame corps side insertion hole 221 of the frame body 2 to pass the bolt 32. The child stock receiving hole 341 is a recess for planting the child stock 34 cut from a separately collected jewel coral.

The growing base 3 of this example is hung orthogonally to the joist 22 of the frame body 2, the base side insertion hole 31 is communicated with the frame body side insertion hole 221 to pass the bolt 32, and the nut 33 is screwed to the bolt 32. By doing so, it is fixed to the frame body 2. As the fixing means of the bolt 32 and the nut 33, the growing base 3 is detachably attached to the frame body 2. As a result, the breeding base 3 of this example was grown by removing it from the frame 2 until just before the jewel coral collecting tool 1 was sunk and managing it separately, or by removing it from the frame 2 immediately after collecting the jewel coral collecting tool 1. You can collect jewel coral 35.

As seen in FIGS. 4 and 5, the frame 2 is asymmetrical in the vertical direction, and the center of gravity G is slightly below the middle of the upper and lower parts because the base 21 is hung with six steel materials to be the joists 22. Since the growing base 3 is fixed to the joist 22 of the frame body 2, it is located below the center of gravity G of the frame body 2, and is a heavy object because it is a block body made of concrete. Further, since the recovery frame is composed of the girder 24 or the beam 25 above the center of gravity G of the frame body 2, it is above the center of gravity G of the frame body 2 and can be used as the growing base 3 simply by assembling the steel material. It is relatively lightweight in comparison. In this way, the jewel coral collecting tool 1 of this example maintains the posture at the time of settling in the posture in which the collecting frame is located above the growing base 3.

As can be seen in FIGS. 6 and 7, the breeding base 3 has the bolt 32 and the nut 33 and the jewel coral child strain 34 so as to fit in the space surrounded by the base 21, the pillar 23, the girder 24 and the beam 25. It is fixed to the frame body 2. As a result, since the breeding base 3 itself does not protrude from the frame 2, even if the frame 2 collides with a rock mass when the jewel coral collecting tool 1 is settled, the risk of damage to the breeding base 3 is reduced. Further, in the frame 2 of this example, the distance between the base 21 and the girder 24 or the beam 25 is about 400 mm. Eliminates the risk of collision with child strain 34.

The cultivation and collection of jewel coral using the jewel coral collecting tool 1 of this example will be described. The precious coral collecting tool 1 is loaded on the ship 4 and carried to the submerged sea area. It is desirable that the jewel coral collecting tool 1 is carried by removing the growing base 3. As a result, the precious coral seedling 34 can be carried in a state of being submerged in a water tank together with the growing base 3 while being planted in the growing base 3, and weakening due to exposure to the outside air during transportation can be avoided. The breeding base 3 is taken out of the water tank just before the jewel coral collecting tool 1 is dropped into the sea 5, and is fixed to the frame 2 with bolts 32 and nuts 33.

As seen in FIG. 8, the jewel coral collecting tool 1 in which the growing base 3 is fixed to the frame 2 is dropped into the sea 5 with the growing base 3 down and the collection frame up. As a means for dropping the jewel coral collecting tool 1 from the ship 4 to the sea 5, for example, a crane mounted on the ship 4 is used. The jewel coral collecting tool 1 dropped on the sea 5 swings slightly due to the resistance of seawater and the influence of ocean currents, but basically the posture when it is dropped, that is, under the breeding base 3, and the collection frame. It sinks while keeping its posture facing up, and then lands on the seabed 51 and is sunk.

A plurality of jewel coral collecting tools 1 are sunk in the sunk sea area. The number of sunk jewel coral collecting tools 1 and the positional relationship in which they are sunk, and the orientation of each jewel coral collecting tool 1 at the sunk position are free. Considering the recovery by the hook 42 described later, for example, as shown in FIG. 9, it is advisable to arrange the jewel coral collecting tools 1 in the same direction at the positions of the grids and lay them down. For convenience, in the figure, the orientations of the precious coral collecting tools 1 are matched, but in reality, they do not necessarily match. Even so, the jewel coral collecting tool 1 arranged at the position of the grid makes it easy to grasp the positional relationship in which it is sunk, and it is easy to hook the hook 42 on the girder 24 or the beam 25 to collect it.

The precious coral collecting tool 1 is sunk for the number of years (50 to 150 years) in which the child strain 34 is sufficiently grown, and is collected after the growing period has elapsed. The jewel coral collecting tool 1 collects, for example, by hooking the hook 42 of the rope 41 lowered from the crane (not shown) of the ship 4 into the sea 5 to the collecting frame of the frame body 2. As seen in FIG. 10, the hook 42 is dragged to the seabed 51 and approached from one direction of the precious coral collecting tool 1. In this case, the hook 42 may pass between the adjacent jewel coral collecting tools 1, but here, the case where the hook 42 approaches the jewel coral collecting tool 1 will be described.

When the hook 42 approaches the jewel coral collector 1, for example, the rope 41 abuts on the beam 25 of the frame 2 constituting the collection frame (the rope 41 is the jewel coral collector 1). Depending on the orientation, it may come into contact with the girder 24 of the frame body 2). As the ship 4 advances as it is (see the white arrow on the right side in FIG. 11), the hook 42 is caught on the beam 25. The jewel coral collecting tool 1 of the present invention is pulled up from the seabed 51 and collected by winding the rope 42 with the hook 42 hooked on the collection frame of the frame body 2.

Here, it is considered that the direction in which the hook 42 approaches the jewel coral collecting tool 1 is not always orthogonal to the girder 24 or the beam 25, but rather it approaches diagonally. For example, the rope 41 that comes into contact with the beam 25 from an oblique direction in the horizontal plane, as seen in FIG. 12, is aligned with the progress of the ship 4 (diagonally downward to the right in FIG. 12, see the white arrow). It shifts toward the end of the rope (lower middle of Fig. 12). However, the rope 41 is prevented from coming off from the end portion of the beam 25 by catching the upper end portion 231 of the pillar 23 as the stopper portion of the recovery frame.

In this way, once the rope 41 is caught on the upper end portion 231 of the pillar 23 which is the stop portion of the recovery frame and once abuts on the beam 25 (or girder 24) constituting the recovery frame, the beam 25 (or girder 24) It does not deviate from (see Fig. 12). Then, the hook 42 is surely hooked on the beam 25 (or the girder 24). Here, when the hook 42 is displaced toward the end of the beam 25, it is caught on the upper end 231 of the pillar 23 which is the stop portion of the collection frame like the rope 41. In this case, the hook 42 is also hooked on the upper end portion 231 of the pillar 23, so that the hook 42 is more difficult to come off from the beam 25 (or the girder 24).

Since the girder 24 or the beam 25 constituting the collection frame is arranged above the frame body 2 surrounding the growing base 3, the growing base 3 is raised when the rope 41 and the hook 42 are caught on the girder 24 or the beam 25. There is no danger of contacting the jewel coral 35. This means that the branches of the grown precious coral 35 will not be broken by the rope 41 or hook 42. Thus, by using the jewel coral collecting tool 1 of the present invention, it is possible to collect the jewel coral 35 having a high commercial value without breaking the branches. This point is a big difference between the coral fishing using the conventional fishing net and the collecting method using the jewel coral collecting tool 1 of the present invention.

Once hooked on the girder 24 or beam 25, the hook 42 is unlikely to come off the girder 24 or beam 25 unless the ship 4 stops or slows its progress. Then, by winding up the rope 41, the jewel coral collecting tool 1 can be pulled up from the seabed 51 as shown in FIG. When the jewel coral collecting tool 1 is separated from the seabed 51, the load applied to the rope 41 is further increased. Therefore, if the fluctuation of the load can be confirmed, the jewel coral collecting tool 1 can be collected simply by stopping the ship 4 and winding up the rope 41. good.

As seen in FIG. 14, the collected jewel coral collecting tool 1 was grown from the breeding base 3 by removing the bolt 32 and the nut 33, removing the breeding base 3 from the frame body 2, for example, in the ship 4. Collect jewel coral 35. In the breeding base 3 of this example, 3 seedlings 34 were planted in each, but not all of them grow equally. However, if the jewel coral collecting tool 1 of the present invention is used, there is an advantage that the jewel coral 35 that has grown to a considerable commercial value can be collected without breaking the branches, that is, without impairing the commercial value. This will make the collection of precious coral 35 a stable commercial business.

1 Precious coral collector 2 Frame
21 foundation
22 Joist
221 Frame side insertion hole
23 pillars
231 Top edge
24 digits
25 Beam 3 Training platform
31 Board side insertion hole
32 bolts
33 nuts
34 Precious coral child stock
341 Child planting hole
35 Precious coral that grew 4 Ships
41 rope
42 hook 5 sea
51 Center of gravity of the seabed G frame

Claims (3)

Below the center of gravity of the frame, fix the breeding base on which the precious coral seedlings are planted.
A collection frame for hooking a hook for collection is provided above the center of gravity of the frame body, and the collection frame is a stopper that forms a convex step with respect to the engagement rod at both ends of the horizontally extending engagement rod. A jewel coral collecting tool with a part . The jewel coral collecting tool according to claim 1 , wherein the collection frame is a horizontal bar of a frame body as a hooking bar, and a crossing bar intersecting near both ends of the horizontal bar as a stopper portion. The jewel coral collecting tool according to claim 1 or 2 , wherein the breeding base is a block body or a plate body in which a jewel coral seedling is planted on the upper surface and is removable from the frame body.

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