JPH0139184Y2 - - Google Patents

Description

[Detailed explanation of the idea] Raising the seaweed net stretched on the sea surface from time to time and drying it in the sunlight removes diatoms, disease bacteria, etc. attached to the seaweed, activates the seaweed thallus, and promotes growth. ,
This is a very important step in the seaweed cultivation process as it increases the production and improves the quality of seaweed.

In relatively shallow areas, a strut method is used in which the struts are inserted into the seabed ground at a predetermined gap, and installed so that the seaweed net can be dried out repeatedly using the water level difference between low and high tides.

However, recently, seaweed farming and fishing grounds have been reclaimed from the coast.
Due to environmental deterioration such as the discharge of sewage from factories, the number of nori fishing grounds using the pole method is being gradually reduced, and nori fishing grounds are being moved offshore.

In such cases, the depth of the water in the seaweed fishing ground naturally increases, making it difficult to use the prop method.

The present invention was proposed to solve these problems, and consists of vertical holes in the center of floats 2 fixed at predetermined intervals to multiple rows of main cables 1 whose ends are anchored to the seabed. A column 4 having a weight 3 at the lower end is inserted into the column 2a, and an oblique cable 5 is connected between both sides of the lower end of the column 4 and the main cable 1, and the upper ends of the columns 4 in adjacent rows are connected to each other. This relates to a seaweed netting device characterized in that a gate frame 6 for maintaining the net spacing is detachably attached between the two, and a seaweed net 7 is supported between the two adjacent trunk cables 1, 1. .

The float 2 is made of closed-cell urethane foam, etc.
The material or structure is such that the buoyancy does not change even if the central vertical through hole 3a is bored. In addition, the gap maintaining gate frame 6
is removably fitted into the upper end of the tubular column-shaped support 4. Also, when setting up the seaweed net 7, place the net 7 on the floating bamboo 8.
and connect it to the main cable 1 with a connecting cable 9.

In the figure, 10 is a connecting cable to the seaweed net 7 connected to the float 2, and 11 is an anchor that anchors the end of the main cable 1 to the seabed surface.

As described above, in the seaweed net device according to the present invention, the seaweed net 7 is supported between the main cables 1 and 1 stretched on the water surface by the struts 4 and the floats 2 floating on the water surface, so But it's easy to install. Therefore, when drying out the seaweed net 7, the seaweed net 7 is pulled up and placed on the gate frame 6 for maintaining the distance between the nets installed between the adjacent supports 4 (see Fig. 6). (See Figure 7) The seaweed net 7 is dried in the sunlight. If the seaweed net 7 is pulled up above the water surface and hung to dry on the upper part of the support 4, there is a risk that the float 2 will sway and collapse.
A weight 3 provided at the lower end of the column attempts to maintain the column 4 with the float 2 in a vertical state, and by the action of a pair of diagonal cables connecting both sides of the lower end of the column 4 to the main cable 1, When the float 2 attempts to fall down, tension is applied to each rope, thereby preventing the float 2 from falling down.

Incidentally, in order to adjust the height of the seaweed net 7 when drying out the seaweed net, a height adjustment tube may be connected to the support column 4, or a height adjustment mechanism may be provided on the gap maintaining gate frame 6.

The seaweed net device according to the present invention has a simple configuration, has low resistance to tides, wind and waves, has little influence from these, and is easy to assemble, so it can be installed and removed quickly, and damage caused by waves, etc. Individual parts can be replaced, emergency measures can be taken to ensure continuation of aquaculture, and the seaweed net can be dried out in a short time when necessary.

In the above embodiment, a case is shown where one strip of seaweed net 7 is stretched, but FIGS.
As shown in the figure, a plurality of seaweed nets can be laid out at the same time using the connecting ropes 12.

[Brief explanation of the drawing]

Fig. 1 is a slope view of the seaweed net device according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view thereof, Fig. 4 is a side view thereof, and Fig. 5 is a partially enlarged slope view thereof. Fig. 6 is a front view showing the drying state, Fig. 7 is a side view, Fig. 8 is a front view showing a case in which a plurality of seaweed nets are arranged side by side, and Fig. 9 is a plan view thereof. 1... Main cable, 2... Float, 2a... Center vertical hole, 3... Weight, 4... Support column, 5... Diagonal cable, 6...
...Gate frame for maintaining mesh spacing, 7...Seaweed netting.

Claims (1)

[Scope of utility model registration request] Center vertical through holes 2a of floats 2 fixed at predetermined intervals to multiple rows of main cables 1 with both ends anchored to the seabed.
A strut 4 having a weight 3 at the lower end is inserted through the strut 4, and an oblique cable 5 is connected between both sides of the lower end of the strut 4 and the main cable 1, and between the upper ends of the struts 4 in adjacent rows. A seaweed netting device characterized in that a gate frame 6 for maintaining net spacing is removably attached to a seaweed netting device, and a seaweed netting 7 is supported between the two adjacent trunk cables 1, 1.