JPH071756U - Floating and sinking type cage - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a floating and sinking cage that suppresses shaking of the cage net caused by waves and tidal currents, reduces damage to the cage and damage to facilities, and reduces damage to fish. [Structure] A float-sink type air float 2 is attached to the upper part, and a cage net 1 which is entirely surrounded by a mesh is arranged in the sea, and a plurality of sea floats 4 and anchors 3 are connected by ropes 5 around the same cage net 1 and moored. In the floating-sink type cage in which the body 6 is constructed and the mooring body 6 and the cage net 1 are linked by the connecting rope 7, the cage net 1 is moored at a predetermined depth in the sea. A weight 8 is attached.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a floating / sinking cage for aquaculture / temporary detention of fish in the ocean / underwater of a lake / water.

[0002]

[Prior art]

 Conventional cages have a structure in which a cage net surrounded by a net is moored to the required depth in the sea or underwater by using a floating float, anchor and rope. When feeding fish to fish in a net cage or harvesting fish, inject air into the air float attached to the net to raise the net net, administer bait and harvest fish. When installing the cage net in the sea or underwater, bleed the air from the air float so that it stays at the required depth. At this time, the depth of seawater to be installed is appropriately determined according to the condition of seawater such as fish, weather, wave tide, seawater temperature, red tide, and the like.

[0003]

[Problems to be solved by the device]

 In conventional float-sink type cages, if the sea float sways due to waves, the sea cages moored by the sea floats and ropes will be transmitted as they are and will sway in the sea, causing damage to the nets and damage to the facilities. The fish escape. Even if there was no damage, the net's outer shape collapsed and the net came into contact with the fish, damaging it. The problem to be solved by the present invention is to solve these problems in the past, to suppress the movement of the cage net, reduce the damage to the net and the facility, and reduce the damage to the fish. To provide.

[0004]

[Means for Solving the Problems]

 The gist of the present invention which solved such a problem is to install a floating and sinking type air float on the upper part and to arrange a cage net which is entirely surrounded by a mesh in the sea, and a plurality of sea floats and anchors with ropes around the cage net. In addition to constructing a mooring body, the mooring body and the cage net are linked by a connecting rope, and the cage cage is moored at a predetermined depth in the sea. It is in a floating cage that is equipped with. Here, as the net material of the net cage of the present invention, any of a rope-knitted fishing net, a plastic net, a wire net, and a synthetic fiber net may be used.

[0005]

[Action]

 In the present invention, the cage net is moored to the mooring body composed of the sea float and the anchor and the rope connecting them, and the weight is attached to the middle of the connecting rope. Therefore, when there are few waves, the middle of the connecting rope is sunk by the weight, and the rope is pulled so as to be broken from the position of the weight. Therefore, even if the sea float is lifted upwards or moved horizontally, the weight position first moves and the connecting rope becomes straight from the fold line, and the sea float rises and moves forward, backward, left and right. Minutes are absorbed by the play of the difference between the broken line state and the straight line state of the connecting rope and the energy attenuation due to the movement of the weight, and the shaking of the cage net is reduced. The cage net is less swaying due to waves and tidal currents and has a good shape retention. It protects the cage net itself and reduces the contact between fish inside and cage net to prevent fish damage.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. 1 is a front view of the embodiment, FIG. 2 is a plan view of the embodiment, FIG. 3 is an explanatory view showing a main part of the embodiment, and FIG. 4 is an enlarged plan view of a cage net of the embodiment.

In the figure, 1 is an 8m × 8m × 8m cubic plastic cage net, 2 is a float-and-sink type air float attached to the upper part of the cage net, 3 is an anchor, 4 is a sea float, 5 is a rope, 6 Is a mooring body, 7 is a connecting rope of about 8 m for mooring the cage net 1 to the mooring body, 8 is a weight of 8 kg provided in the middle of the connecting rope, 9 is a tension rope of the mooring body, and 10 is a float-sink type An air tube for injecting and discharging air of the air float, 11 is a float, 12 is a double wapper, 13 is the sea surface, and 14 is the seabed.

In this embodiment, the cage net 1 is installed about 7 m below the sea level. The mooring body 6 has the air float 2 arranged at each corner of a 20 m square, and is linked to the anchor 3 by the rope 5 so as to form a 20 m × 20 m tension rope 9 2 m below the sea level. The cage net 1 is moored by a connecting rope 7 8m from the double wappers 12 at the corners of a tension rope 9 stretched in a square. In this embodiment, even if a strong wave is generated on the sea surface and the air float 2 moves up and down together with the sea surface, only the bent state of the connecting rope 7 changes as shown in FIG. The binding point with 7 does not fluctuate significantly, and there is little fluctuation of the cage net 1. This is because the weight 8 bends the connecting rope 7 in the middle, and the deformation of the connecting rope 7 gives play to the mooring length of the connecting rope and the force of the air float 2 to move the weight 8 Energy is used. Even in the case of waves of 3 to 4 m on the sea surface, the net movement of the cage net is about 40 cm, which is much less shaking than the conventional shaking of 3 to 4 m. In addition, the shape of the cage net 1 is rarely lost.

[0009]

[Effect of device]

 As described above, according to the present invention, by providing a weight in the middle of the connecting rope, the shaking of the cage net and the collapse of the net shape can be suppressed to a fraction or less of the conventional one. As a result, damage to the nets and facilities was eliminated, fish were less in contact with cage nets, and damage to the fish could be greatly reduced.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIG. 2 is a plan view of the embodiment.

FIG. 3 is an explanatory diagram showing a main part of the embodiment.

FIG. 4 is an enlarged plan view of the cage net of the embodiment.

[Explanation of symbols] 1 fish cage net 2 air float 3 anchor 4 sea float 5 rope 6 mooring body 7 connecting rope 8 weight 9 tension rope 10 air tube 11 float 12 double wapper 13 sea surface 14 sea floor

Claims (1)

[Scope of utility model registration request] 1. A mooring net is constructed in which a floating and sinking type air float is attached to the upper part and which is entirely surrounded by a net, is arranged in the sea, and a plurality of sea floats and anchors are connected to each other by ropes around the same net to construct a mooring body. At the same time, in the float-sink type cage in which the mooring body and the cage net are linked by a connecting rope, the cage net is moored at a predetermined depth in the sea. Ceremony cage.