JP3662606B2 - Fish reef - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a fish reef provided with a fish reed netting prevention device for preventing so-called netting that a fish net catches on a fish reef .
[0002]
[Prior art]
Fish reefs that are laid on the bottom of the sea or lake often have diagonal or vertical struts as a basic member for forming the structure and for supporting the weight. Due to the influence of waves and complicated water flow, so-called scouring occurs at the lower end of the submerged strut body, creating a space between the lower end and the bottom of the strut body.
[0003]
[Problems to be solved by the invention]
When fishing is performed near a fish reef where scouring occurs in this way, such as when a fishing boat towing a bottom net, nets, wires, beams, etc. enter the gap space of the scouring pond, It was the cause of troubles such as obstacles, damage to fish and shellfish, falls and damage to fish reefs. SUMMARY OF THE INVENTION An object of the present invention is to provide a fish reef netting prevention device so that scouring does not occur in the vicinity of a support column that is likely to cause net shading.
[0004]
[Means for Solving the Problems ]
The present invention forms a three-dimensional shape attached to horizontal member over between diagonal or vertical pillar body, yet the fish reef horizontal members lowermost forms a bottom surface of the reef body, the lower end of each support column, plate-shaped body is attached with its end face downward, the lower end of the plate-shaped body is intended to provide a fish reef, characterized in that it is protruded downward from the bottom of the reef body.
[0005]
[Action]
When the fish reef is laid, the base part touches the seabed, etc., but the plate-like body of the present invention is buried in the seabed, so even if the state of the seabed changes due to the influence of waves or water currents, Senbori is unlikely to occur near the tip of the body.
[0006]
【Example】
Embodiments of the present invention will be described with reference to the drawings. In FIG. 1, the fish reef body 3 has a framework structure whose outline is a polygonal pyramid. A plurality of square members, so-called angle members, and the like are arranged radially in the column body 4 to form a ridge line of a pyramid. These are provided with a plurality of horizontal members 5 arranged circumferentially. The lowermost horizontal member 5 forms the lower end of the fish reef body 3. The plate-like body 1A is composed of a plate material such as a steel material bent according to the outer shape of the support body 4 and has a length equal to or greater than the assumed scour depth of the lower surface of the fish reef. When installed, it is cut so that it is almost horizontal. FIG. 4 shows how the plate-like body 1A is attached. The bent plate-like body 1A is fixed to the column body 4 with an appropriate fastening body 6 such as a bolt and nut. A drain hole 2 is appropriately formed in the plate-like body 1A. This helps stabilize the reef settling.
[0007]
In FIG. 2, the fish reef body 3 is connected to a vertically configured portion at the bottom of the polygonal pyramid similar to FIG. 1. A plurality of support columns 4 are vertically arranged in parallel. A plate-like body 1A is attached to these lower portions as in the case of FIG.
In FIG. 3, a plate body in which the support body 4 is formed of a solid square member, and the oblique sides of the triangular plate are continuous on the ridge line extension as shown in FIG. 5, and one side of the angle member is fixed to the vertical side. 1B is being fixed to the lower end of the support | pillar body 4 with the fastening material 6 at the other side of the angle material. Although this plate-like body 1B is strong, it is maintained without deteriorating the embedding property on the seabed or the like.
[0008]
【The invention's effect】
Since the present invention prevents the occurrence of scouring in the vicinity of the pillars of the fish reef, smooth fishing operations can be carried out without causing problems due to the shading of the scouring pits when fishing in the vicinity of the fish reef. Can greatly contribute to.
[Brief description of the drawings]
1 is a schematic perspective view showing an example of a reef of the present invention.
FIG. 2 is a schematic perspective view showing another example of the fish reef of the present invention.
FIG. 3 is a schematic perspective view showing still another example of the fish reef of the present invention.
FIG. 4 is a cross-sectional view showing an embodiment of a plate-like body used in the present invention.
FIG. 5 is a side view showing another embodiment of the plate-like body used in the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1A Plate-shaped body 1B Plate-shaped body 2 Drain hole 3 Fish reef body 4 Prop body 5 Horizontal member 6 Fastening body

Claims (2)

None of the three-dimensional shape attached to horizontal member over between diagonal or vertical pillar body, yet the fish reef horizontal members lowermost forms a bottom surface of the reef body, the lower end of each post member, the plate-like body mounted toward the end face downward, the lower end of the plate-shaped body is characterized in that it is protruded downward from the bottom of the reef body reef.   The fish reef according to claim 1, wherein a drainage hole is provided in the plate-like body.

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