JP-7855471-B2 - Surface floating fish reef

JP7855471B2JP 7855471 B2JP7855471 B2JP 7855471B2JP-7855471-B2

Inventors

北野潔
志賀隆顕
里村憲光
熊本修太

Assignees

岡部株式会社

Dates

Publication Date: 20260508
Application Date: 20220921

Claims (4)

A surface-type floating artificial reef that is installed on the water surface in a floating state, An outer shell formed in the shape of a hollow cylinder, A deck is provided by sealing the upper part of the outer shell, The bottom of the shell is provided by sealing the lower part of the above-mentioned outer shell, It is provided inside the above-mentioned outer shell, and is constructed by attaching wall panels between columnar members arranged in a ring shape, and comprises a cylindrical partition wall that divides the storage space on the inside, A surface-type floating artificial reef characterized in that the cylindrical septum and the outer shell are used as chord members, and these outer shell and cylindrical septum are connected by a plurality of lattice members in the circumferential direction of the outer shell and cylindrical septum to form an annular truss structure.
The surface-type floating fish reef according to claim 1, characterized in that the wall plate is made of a flat material, and the cylindrical partition body is formed in a planar polygonal shape.
The surface-type floating artificial reef according to claim 1 or 2, characterized in that a plurality of the annular truss structures are provided in the vertical direction of the outer shell.
The surface-type floating artificial reef according to claim 1 or 2, characterized in that the annular truss structure is provided with additional lattice members connecting the cylindrical partition body and the outer shell body between adjacent lattice members.

Description

This invention relates to a surface-type floating artificial reef that allows for a reduction in the amount of steel material used to constitute the framework structure, and also allows for the internal voids to be partitioned with flat walls. Examples of surface-type floating artificial reefs installed on the water surface include those described in Patent Documents 1 and 2. Patent Document 1 describes a "floating fish reef," a floating structure that is moored to the ocean surface by ropes or anchors, or that moves on its own. It has an energy source within the floating body and emits light to attract fish at any depth in the ocean. Patent Document 2 describes a "floating fish reef" equipped with a device for continuously or intermittently dropping and discharging organic soluble material into the sea. Japanese Unexamined Patent Publication No. 188338/1983Japanese Utility Model Publication No. 63-129460 This is an explanatory diagram illustrating a floating fish reef to which a preferred embodiment of the surface-type floating fish reef according to the present invention is applied.This is a diagram showing the framework of the outer shell of a preferred embodiment of the surface-type floating fish reef according to the present invention.This is a diagram showing the deck framework of a preferred embodiment of the surface-type floating fish reef according to the present invention.This is a diagram showing the skeletal structure of the bottom of a shell, illustrating a preferred embodiment of the surface-type floating artificial reef according to the present invention.This is a cross-sectional view taken along the line B-B in Figure 6, showing a preferred embodiment of the surface-type floating artificial reef according to the present invention.This is a cross-sectional view taken along the line A-A in Figure 5, showing a preferred embodiment of the surface-type floating artificial reef according to the present invention.Figure 6 shows an enlarged view of section C. A preferred embodiment of the surface-type floating artificial reef according to the present invention will be described in detail below with reference to the accompanying drawings. As shown in Figure 1, the surface-type floating artificial reef (hereinafter simply referred to as "floating artificial reef") 1 is installed floating on the sea surface 5 by connecting the other end of a mooring rope 4, one end of which is connected to an anchor 3 sunk to the seabed 2. The floating artificial reef 1, which is suspended above the sea surface 5, attracts marine organisms such as fish, and is used as an artificial reef. The floating artificial reef 1 has various equipment 6, such as communication devices and navigation aids, mounted on its upper part, as well as handrails 7 and hatches (not shown). The lower part is equipped with legs 8 for when it is installed on land or mounted on a workboat, and a mooring ring 9 to which the other end of the mooring rope 4 is connected via a shackle. As shown in Figures 1 to 4, the external form of the floating artificial reef 1 is formed from an outer shell 10 that is a hollow cylindrical shape with openings at the top and bottom, a deck 11 provided on the upper part of the outer shell 10 to seal the upper opening, and a shell base 12 provided on the lower part of the outer shell 10 to seal the lower opening. The outer shell 10 is composed of an annular shell member 10a formed by arranging multiple steel plates in the circumferential direction of the outer shell 10 and sequentially welding these steel plates together, and, as shown in the left portion of Figure 2, a ring-shaped rib member 10b formed along the circumferential direction of the inner surface of the shell member 10a, and main longitudinal rib members 10c and longitudinal rib members 10d formed along the vertical direction of the inner surface of the shell member 10a. The ring-shaped rib members 10b are arranged in multiple stages in the vertical direction of the shell member 10a, the main longitudinal rib members 10c are provided in multiples at intervals in the circumferential direction of the shell member 10a, and the longitudinal rib members 10d are provided in manys between the main longitudinal rib members 10c at intervals in the circumferential direction of the shell member 10a. In this embodiment, the ring-shaped rib members 10b are provided in two upper and lower stages, and eight main longitudinal rib members 10c are provided at equal intervals. The ring-shaped rib members 10b and the longitudinal rib members 10d are made of L-shaped steel angle material, and one end of this L-shaped angle material is welded to the shell member 10a. The main longitudinal rib members 10c are made of H-shaped steel, and the flanges of the H-shaped steel are welded to the shell member 10a. In the illustrated example, the outer shell 10 is formed in a planar circular shape. However, the outer shell 10 may also be formed in a planar elliptical or oval shape, or in