JP3656064B2 - Cultured reef unit - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a cultured fish reef unit that is submerged on the seabed and used mainly for culturing small prey organisms.
[0002]
[Prior art]
As a culture reef for culturing prey organisms such as small shellfish, small shellfish, crustaceans, small shellfish, shellfish, shellfish, etc. The cultured fish reef described in Japanese Utility Model Publication No. 4-27333 has been provided by the present applicant.
[0003]
In this cultured fish reef, a number of unglazed corrugated sheets are alternately placed in a standing position in a frame provided on a pedestal so that they are placed in contact with each other to form an unglazed corrugated sheet group. A crevice that is open to the sea, and attached organisms of diatoms, mosses, and small shellfish grow on the corrugated surface of the unglazed corrugated sheet, prefer small gaps, crustaceans that move in and out of the reef, and small shells Moving organisms such as fish grow as living places in the gaps of the longitudinally long cross-sectional shape generated between each unglazed corrugated sheet, and enhance the collection effect as a cultured fish reef.
[0004]
Also, for the purpose of protecting fry and forage culture by assembling in a large artificial fish reef artificially constructed of concrete, steel, etc., a cultured fish reef unit, shells or pebbles that unite the unglazed corrugated plate group A cultured fish reef unit or the like in which a coarse cylindrical wire mesh is filled has also been proposed.
[0005]
Among such cultured fish reef units, those made of shells or pebbles have a smaller porosity in the unit than cultured fish reef units consisting of unglazed corrugated sheet groups, so that the living organisms consist of unglazed corrugated sheet groups. It is intended for small things compared to things.
[0006]
[Problems to be solved by the invention]
By the way, the unglazed corrugated sheet constituting the cultured fish reef unit composed of the uncorrugated corrugated sheet group described above changes direction with the same curvature to form two curved portions, so it is used for general purpose roofing. There are similarities to roof tiles (hereinafter referred to as roof tiles). Therefore, a similar cultured fish reef unit can be configured even if tiles are used instead of the unglazed corrugated sheet.
[0007]
That is, as shown in FIG. 5, the roof tile has a central curved portion 2 with a large curvature and an end curved portion 3 with a small curvature in the opposite direction continuously from the central curved portion 2 to one end portion 4. As shown in FIG. 6, a plurality of tiles 1 are formed in the same manner as in the case of unglazed corrugated plates, and are alternately arranged in a series to form a roof tile group a. A can be configured.
[0008]
In this case, the tiles 1 adjacent to each other forming the tile group a are in contact with each other at two tile surfaces on the convex side of the central curved portion 2 and the end-side curved portion 3, and the central curved portions of the adjacent tiles 1. 2 are opposed to each other, and the lower ends 5 of the roof tiles 1 are joined to each other. Between the adjacent roof tiles 1, the vertically long gap 1 a formed by facing the concave surface of the central curved portion 2 and the convex surface of the central curved portion. On the side, two gaps 1b and 1c are formed, which are divided in the vertical direction by contacting the convex surface.
[0009]
These gaps 1a, 1b and 1c are substantially the same as the gaps formed between the unglazed corrugated sheets in the unglazed corrugated sheet group, but the porosity is almost the same. As target living organisms of the cultured fish reef unit A, those that are approximately the same size as those of the unglazed corrugated sheet group are targeted.
[0010]
Of course, if the tiles adjacent to each other are arranged in such a manner that the tile surfaces are in contact with each other at two locations on the convex side of the central curved portion 2 and the end-side curved portion 3, the void ratio in the unit is changed. It can't be done.
[0011]
However, when installing a practical cultured fish reef unit, the porosity in the unit is made larger than that of a conventional cultured fish reef unit composed of a group of unglazed corrugated plates or tiles as described above, and the size of the target growing organism is increased. Diversity that can be increased once is required.
[0012]
Therefore, the present invention has an object to provide a cultured fish reef unit that can effectively utilize a form unique to a tile that is not found in an unglazed corrugated sheet, enables a change in the void ratio in the unit, and exhibits diversity. is there.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, the cultured fish reef of the present invention comprises a central curved portion, and a plurality of tiles having a curved portion in the opposite direction, continuous between the central curved portion and one end portion, Arranged in series with the direction of the curved portion side up, and the two curved tiles are assembled by joining the convex side of the curved portion near the edge of two adjacent tiles. The lower end of each tile is joined to the lower end of adjacent tiles separated by a predetermined dimension, and the upper end of each two-layered tile is held by the upper holding member, and the lower end of each tile is held by the lower holding member It is characterized by that.
[0014]
According to the cultured fish reef unit according to the present invention configured as described above, adjacent tiles are not in contact with each other at an intermediate portion of the tile surface, and the shape and the cross-sectional area are relatively different between adjacent tiles. Since two gaps with a large cross-sectional area are formed, it is possible to increase the attached prey organisms of diatoms, moss and small shellfish growing on the tile surface by effectively using the tile surface without contact in the middle part, Corresponding to the cross-sectional area, the two gaps improve the closeness of moving organisms such as relatively large crustaceans and small fishes, and make this a habitable area of recreation for effective growth of the moving organisms. As a cultured fish reef, the collection effect is enhanced.
[0015]
Also, by changing the separation distance between the lower ends of the two-layer tiles, the cross-sectional area of the gap formed between the adjacent tiles can be changed, so that the void ratio in the unit can be changed. Diversity is demonstrated as a cultured fish reef unit.
[0016]
In the present invention, the upper holding member and the lower holding member constituting the cultured fish reef unit are prepared in advance with dimensions determined in consideration of the number of roof tiles used and the void ratio in the unit.
[0017]
Here, the upper holding member is made of a belt-like member, and the upper end of each two-layered roof tile is fitted and held in the cut recesses provided at equal intervals in the upper holding member, and the lower holding member is opposed to the upper holding member. Is composed of a pair of left and right L-shaped steel materials, and is configured to fit and hold the corners on both sides of the lower end portion of each tile between two orthogonal plate portions of the steel material. First, from one end of the lower support member arranged oppositely, the roof tiles are arranged in series while alternately changing the direction of the roof tiles, and the bottom ends of the roof tiles are held by assembling the two roof tiles. When the arrangement has been completed, the upper holding member may be arranged in the upper center of each two-layered roof tile, and the joint upper end portion of each two-layered roof tile may be fitted and held in the cut recess. Therefore, anyone can assemble the cultured fish reef unit according to the present invention easily and reliably.
[0018]
Further, the cultured fish reef unit according to the present invention can be combined with a general-purpose large artificial fish reef as an outer reef body. However, as a cultured fish reef to be used directly, an upper holding member and a lower holding member are used. A member is assembled | attached to the frame provided on the base.
[0019]
In this case, the size of the cultured fish reef can be increased by providing a plurality of cultured fish reef units adjacent to the common frame provided on the pedestal in the horizontal position or the vertical position.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0021]
FIG. 1 is a front view in which a part of a cultured fish reef unit according to the present invention is omitted, and FIG. 2 is a plan view.
[0022]
In the following description, the same or equivalent parts as in FIG.
[0023]
1 and 2, the cultured fish reef unit A includes a roof tile group b formed by arranging a plurality of roof tiles 1 in series, an upper holding member 6 that holds the upper portion of the roof tile group b, and a lower hold that holds the lower portion. The member 7 is the main component.
[0024]
The roof tile 1 forming the roof tile group b has a central curved portion 2 and a curved portion 3 which is continuous between the central curved portion 2 and one end portion, and has an end curved portion 3 in the opposite direction. It is used as it is without adding any processing to the mass-produced tiles used for general roofing.
[0025]
It should be noted that many roof tiles that are mass-produced are not damaged in appearance, but those that do not meet the standards in the test after firing are often discarded as rejected products. The use of roof tiles, which are rejected due to no appearance damage during the roof tile production, enables effective use of resources.
[0026]
The roof tile group b in the present invention is arranged in a series in which the plurality of roof tiles 1 are arranged in series while alternately turning their directions toward the end curved portion 3 side of the plurality of roof tiles 1. The two roof tiles are assembled by joining the convex sides of the two roof tiles, and the lower ends 5 of the two roof tiles are joined to the lower ends 5 of the adjacent roof tiles 1 at a predetermined distance.
[0027]
In addition, the upper holding member 6 that holds the joint upper end portion 4 of each two-sheet roof tile is formed of a band-like member, and the upper holding member 6 is provided with cut recesses 8 at equal intervals. The joining upper end 4 is fitted and held in the corresponding cut recess 8.
[0028]
Moreover, the lower holding member 7 holding the lower end portions 5 of all the tiles 1 forming the roof tile group b is made of an L-shaped steel material, and a pair of left and right lower holding members 7 are arranged to face each other, and the steel materials 2 orthogonal to each other. The corners on both sides of the lower end of all the roof tiles 1 are fitted and held between the two vertical plate portions 7a and the horizontal plate portions 7b.
[0029]
In the cultured fish reef unit A according to the present invention configured as described above, the joint upper end portion 4 of each two-layer tile is fitted and held in a common cut recess 8 provided in the upper holding member 6, respectively. The lower end portions 5 of the two-layered tiles are joined to the lower end portions of the adjacent tiles 1 with a predetermined distance therebetween, and the lower corners on both sides of all the tiles 1 constitute a pair of left and right lower holding members 7. Since the steel plates are fitted and held between two vertical plate portions 7a and horizontal plate portions 7b that are orthogonal to each other, the adjacent tiles 1 do not have any contact in the middle portion of the tile surface, and the upper and lower end portions 4 of each tile 1. , 5 are displaced in the direction in which the roof tiles 1 are arranged and are held in an inclined shape, so that two gaps 1d and 1e having a relatively large cross-sectional area that are greatly different in form and cross-sectional area are formed between the adjacent roof tiles 1. The
[0030]
Therefore, by changing the interval between the cut recesses 8 provided in the upper holding member 6 and changing the interval between the lower ends of each two-layered roof tile, as shown in FIGS. 3 (a), (b) and (c), The combination pitches W1, W2, and W3 of the adjacent two-layer tiles can be changed to change the void ratio in the unit.
[0031]
Further, as a specific example of use of the cultured fish reef unit A composed of the tile group b in the present invention, in the embodiment, as shown in FIG. 4, a frame in which a plurality of cultured fish reef units A are provided on a base 9. 10 is attached to the culture fish reef.
[0032]
When such a cultured fish reef is installed on the seabed, the attached prey organisms of diatoms, moss and small shellfish that grow on the tile surface by effectively utilizing the tile surface of each tile 1 forming the tile group b can be increased. . Further, the two large gaps 1d and 1e formed between the adjacent roof tiles 1 have effects of moving organisms such as relatively large crustaceans and small fishes corresponding to the cross-sectional areas of these gaps 1d and 1e. Growth is enhanced and the collection effect is enhanced as a cultured fish reef.
[0033]
【The invention's effect】
According to the present invention having the above configuration, when a plurality of roof tiles are arranged in series to form a roof tile group, contact between adjacent roof tiles at the middle portion of the roof tile surface is eliminated. This makes it possible to increase the number of prey organisms attached to the algae, moss and small shellfish that grow on the tile surface by effectively using the tile surface. In addition, the gap formed between adjacent roof tiles is slightly larger than before, and the cross-sectional area of the gap can be changed. As a result, effective growth of the moving organisms of the cultivated fish can be promoted, so that the harvesting effect can be enhanced and the cultured fish reef exhibiting diversity can be provided.
[Brief description of the drawings]
FIG. 1 is a front view in which a part of a cultured fish reef unit according to the present invention is omitted.
FIG. 2 is a plan view of the cultured fish reef unit in FIG.
FIGS. 3A, 3B, and 3C are partial front views of a cultured fish reef unit for explaining a change in a cross-sectional area of a gap formed between adjacent roof tiles.
FIG. 4 is a perspective view of a cultured fish reef to which the cultured fish reef unit is applied.
FIG. 5 is a perspective view of a roof tile used in the configuration of a cultured fish reef unit.
FIG. 6 is a partial front view of a conventional cultured fish reef unit including a group of tiles.
[Explanation of symbols]
1 roof tile 1a gap 1b gap 1c gap 1d gap 1e gap 2 central curved portion 3 end-side curved portion 4 upper end portion 5 lower end portion 6 upper holding member 7 lower holding member 7a vertical plate portion 7b horizontal plate portion 8 cut recess 9 pedestal 10 frame Body a Tile group b Tile group A Cultured fish reef unit

Claims (4)

Continuing between the central curved part and one end from the central curved part, the plurality of tiles having the curved part in the opposite direction are alternately turned with the curved part side up. Arranged in series, the convex side of the curved portion near the end of two adjacent tiles is joined to form a two-layered tile, and the lower end of the two-layered tile is separated by a predetermined dimension from the adjacent tile A cultured fish reef unit characterized in that it is joined to the lower end portion, the upper end holding portion of each two-layered tile is held by an upper holding member, and the lower end portion of each tile is held by a lower holding member. The cultured fish reef according to claim 1, wherein the upper holding member is formed of a band-like member, and the joint upper end portions of the two-layered tiles are fitted and held in cut recesses provided at equal intervals in the upper holding member. unit. The lower holding member is made of a pair of left and right L-shaped steel materials arranged opposite to each other, and is characterized by fitting and holding the corners on both sides of the lower end of each tile between two orthogonal plate parts of the steel material. The cultured fish reef unit according to claim 1. The cultured fish reef unit according to claim 1, wherein the upper holding member and the lower holding member are assembled to a frame provided on the pedestal.

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