JPS59173030A - Block case body for fish bank - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fish reef block for an artificial fishing reef, which is installed on the seabed to encourage the proliferation of fish. In general, artificial reefs are constructed by introducing reef blocks from the sea and depositing them on the seabed to allow fish to proliferate, or reef blocks of various shapes have been used to form artificial reefs. ing.

However, these generally have a large volume and weight, which increases transportation costs, and when fishing after forming a fishing reef, fishing nets are easily caught in the corners of the blocks and damaged, resulting in severe damage to fishing nets. There were drawbacks.

Therefore, the inventors of the present invention conducted repeated research and trial production in order to eliminate these drawbacks, and as a result, succeeded in developing an excellent block for fish reefs that has never existed before. That is, the present invention provides a block box for fish reefs (
A so-called prefabricated block machine (Fig. 1, Fig. 2) (hereinafter referred to as a donut board), which is a constituent unit of a block box (hereinafter referred to as a block box), is produced in a factory and can be easily assembled into the desired shape at the input site. This type of reef block box is easy to transport, and the formed fish reef block box does not have any factors that can damage fish nets.As a result of experiments, it has been found that it is useful for seawater, shellfish, and fish breeding. Occurrence of plankton, etc.
It was found that the growth was extremely good.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in Figures 1 and 2, four parts A and A' are provided at symmetrical positions on the top and bottom of a donut disc with a reinforced concrete structure, and a convex part B' of 1% is provided at symmetrical positions on the left and right sides, respectively, and the curved surface of the outer ring with the uneven parts is The peripheral edge portions 1.1' and 2.2° are set as meeting planes, and the area ratio of the brackets 1.1° and 2.2° is approximately 1:2.

When assembling the block box as shown in FIG. 3, the size of the concave and convex portions is determined so that they fit and connect with the concave and convex portions of other donut disks, and the tip of the base part is made to have a curved surface. Through holes 4, 4 are formed approximately in the center of the twisted concave portion forming protrusions 3, 3° and the convex portion BB°.
Drill holes at 5.5° and 5.5', respectively, and fix the uneven parts where the donut disk is assembled with bolts and nuts. In this case, the pointed ends 8 of the bolts and nuts are placed at a lower position than the surface to prevent the fishing net from getting caught.

The inner ring of the donut disk is provided with a cross-shaped support 6, and the cross-shaped support 6 is formed into a cylindrical shape with a diameter at least as large as the inner ring diameter, and a bolt hole 7 is formed in the center of the cross-shaped support 6. , When a block box is fitted and an underdrain is required, a flat plate can be attached here.

Figure 3 shows a regular hexahedral block box in which 6 pieces of donut disks are combined and fitted.Remove this - face C and connect the block disks horizontally in 2 pieces, 3 pieces, etc. By attaching other donut disks that serve as the top and bottom plates, a rectangular fish reef block can be formed, and it can also be stacked vertically to make it larger.

The block box for fish reefs according to the present invention is easy to mold and assemble, since the donut disk serving as its constituent unit is easy to mold and is easy to transport because it weighs only one unit. It is flexible, can be fitted to any size, and does not cause any damage to the fishing net. Furthermore, the third
As can be seen in the figure, the floc box has large gaps, allowing seawater to pass through smoothly, and fresh water to come in contact with it. Compared to conventional fish reef blocks, the effect is much superior to that of conventional fish reef blocks, such as good occurrence and growth of fish reefs.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a donut-shaped block disk serving as a constituent unit of the block box for fish reefs of the present invention. Figure 2 is a slope view of the same. Figure 3 is a perspective view of a block box assembled with six donut-shaped block disks. A: Concave portion B: Convex portion C:
...Donut discs 1, 1', 2.2" ... Peripheral edge of outer ring curved surface 3.3° ... Concavity forming protrusion 4
,4°,5,5°...Through hole 6...
...Strut 7... Bolt Hole Patent Applicant Co., Ltd. Azuma Group Representative Tetsuji Azuma (5) Engraving of the drawing (no change in content) Engraving of the drawing (no change in content) $3) (I) ) Procedural amendment (method) % formula % 1. Indication of case 1981 Patent Application No. 46531 2
, Title of the invention Relationship with the case of the person who amended the block box for fish reefs 3° Patent applicant address 2504 Saigasaki, Wakayama City, Wakayama Prefecture Date of amendment order June 8, 1980 (shipment date 58.6. 28
) 5. Target of correction Drawing 6. Details of correction as shown in the attached sheet

Claims (1)

[Claims] Recesses A and A'' with through holes 4 and 4° are provided at vertically symmetrical positions, and convex portions aB' with through holes 5 and 5'' are provided at left and right opposite original positions, respectively. The circumferential edge H1,1 with an area ratio of approximately 1:2: 2.2° is a plane, and a cross-shaped strut 6 is provided in the inner ring part, and the inner ring diameter is formed into the shape of at least a vertebral column with the intersection point as the center. This block box for a fish reef is formed by fitting and connecting through the concave and convex portions of a donut-shaped block disk which is reinforced and has a bolt hole 7 in its center.