JPS6326968B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a floating fishing device for fishing easily and economically with very little effort. In the past, there were a wide variety of fishing nets,
Most of them were designed to make full use of fishing school detectors installed on fishing boats, run around the sea, surround fishing schools, and catch fish. The present invention aims to improve such uneconomical fishing methods that use a large amount of valuable fuel. To explain this with reference to an embodiment, as shown in FIG. 1, a fishing net 2 is attached with slack around the entire bottom of an annular airtight bag 1. In addition, an appropriate number of pipes 3 for injecting or discharging gas such as air or liquid such as seawater are provided into the annular bag 1 as necessary.
disposed on the upper and lower parts of the bag 1;
The inside of the bag 1 may be divided by partition walls so that the gas or liquid is evenly injected into the bag 1. Furthermore, a weight body 4 is attached to the bottom of the bag 1 to maintain stability. When pouring seawater into the bag 1 and submerging it, do it through the pipe 3a installed at the bottom of the bag 1.
Air is exhausted from the tube 3b at the top of the bag 1. When floating, air is forced into the bag 1 through a tube 3b disposed at the top, and seawater filled in the bag 1 is discharged from a tube 3a disposed at the bottom. In addition, a floating body 5 such as a float is inserted into the lower part of the fishing net 2, or the floating body 5 is moored from the bottom of the water in advance so that the slack of the fishing net 2 becomes an upward protrusion. 1 and the fishing net 2 attached thereto form a large fish reef. Next, if you want to catch fish that have gathered on this fish reef, attach it to the top of bag 1.
Gas such as compressed air was injected from the pipe 3b which floated above the water by the floating body 6 by opening the valve 7, and the bag 1 was filled by opening the valve 7 of the pipe 3a arranged at the bottom of the bag 1. Drain seawater. When the buoyancy becomes greater than the underwater weight of this fishing device, the entire device begins to rise silently, then rises at an accelerated rate, and finally, as shown in Fig. The fish that were caught are caught in the fishing net 2. When the fishing is finished, liquid such as seawater is injected from the pipe 3a installed at the bottom of the bag 1 using a submersible pump or the like.
The air inside the bag 1 is discharged from the pipe 3b provided at the top of the bag 1, and the floating type fishing device is again installed in a stable state on the bottom of the water, as shown in FIG. According to the floating type fishing device of the present invention, fishing can be carried out very easily by simply equipping a small boat with a high-pressure cylinder for gas injection and a small pump for liquid injection, without having to chase fish around in the ocean. You can expect a large catch with a small number of people. Furthermore, by changing the mesh size of fishing nets, overfishing of young fish can be restricted, so this invention is very effective in preventing resource depletion.

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional perspective view of the present invention, and FIG. 2 is a cross-sectional perspective view of the present invention during levitation. 1...Annular bag, 2...Fishing net, 3a...Pipe placed at the bottom, 3b...Pipe placed at the top, 4
... Heavy object, 5 ... Floating object such as a float, 6 ... Floating object,
7...Injection/discharge valve.

Claims (1)

[Claims] 1. A fishing net is slackened at the bottom of an annular airtight bag equipped with a pipe that can inject and discharge liquid or gas, and a float is attached to the closed end of the net, and a fishing net is attached to the closed end of the net. A float-and-sink fishing device characterized by a weight body at the bottom of the bag.