JPH0525419Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a light-emitting device for fishing nets that is attached to, for example, bottom trawl nets, etc., in order to monitor the condition of the nets.

[Prior art]

Generally, when fishing with bottom trawl nets, it is not possible to know what condition the fishing net is in under the sea. Therefore, if the mouth of the fishing net is not opened sufficiently, or if the entrance part 2 of the fishing net 1 is opened as shown in FIG. 5a,
If the terminal end 3 is higher than the fishing net 1, or if the terminal end 3 is lower than the entrance 2 of the fishing net 1 as shown in FIG.

[Problem that the invention attempts to solve]

However, in the past, there was no attempt to detect the condition of the fishing net, and the current situation was to simply throw in the fishing net and pull it out, with no way of knowing what condition the fishing net was in.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention provides a connecting part for connecting a rope at a predetermined point of a fishing net at the tip of the main body of the light-emitting device, a tail fin at the tail part, and a light-emitting device with a built-in light-emitting body in the side part. a circuit section incorporating a generator having a rotary blade that rotates freely in the light emitting device main body, a battery, and a switch, and providing a water flow inlet and an outlet in the light emitting device main body, The light emitting device is characterized in that a water flow is guided into the light emitting device main body to rotate the rotor blades of the generator.

[Effect]

According to the present invention, when the light emitting device body is connected to a predetermined part of a fishing net and pulled by a boat, a water flow is guided into the light emitting device body as the fishing net is pulled, and this water flow rotates the rotor blades. By doing so, the generator can be rotated to generate electricity, thereby causing the light emitting body of the light emitting section to emit light.

〔Example〕

FIG. 1 is a side sectional view of a light emitting device for a fishing net according to an embodiment of the present invention, in which a connecting portion 6 for connecting a fishing net rope 5 is provided at the tip of the light emitting device main body 4, and a side portion of the light emitting device main body 4 is shown in FIG. A light emitting unit 7 containing a light emitting body such as a lamp or an LED is provided at the rear of the light emitting device main body 4, and a tail 9 is provided at the rear of the light emitting device main body 4. Furthermore, a water flow inlet 2 is provided near the connecting portion 6 of the light emitter device 4.
0 is provided, and a generator 11 having rotary blades 10 rotatably provided inside the light emitting device body 4 behind the water flow intake 20 is installed, and this generator 11 is equipped with a battery and a switch. The light emitting device 13 is configured by attaching the portion 12.

FIG. 2 is a circuit diagram of the light emitting device for fishing nets shown in FIG. The switch 15 is made of a bimetal or the like, and is configured to automatically turn off by emitting light when current flows through it, and turn on when it cools down, causing the light emitter 8 to blink.

FIG. 3 is a schematic configuration diagram of a fishing net equipped with a light emitting device of the present invention, in which a fishing net 17 is pulled around a boat 16 with a rope 5, and a predetermined point of the fishing net 17, for example, the fishing net 1
Inlet part 17a, intermediate part 17b and terminal part 17 of 7
A light-emitting device 13 of the present invention is attached to each of the light-emitting devices 13 of the present invention. When the fishing net 17 is being dragged underwater, the state of the fishing net 17 can be determined by using a photoelectric conversion device 18 such as a video camera attached to the rope 5 that pulls the fishing net 17. is detected and converted into an electrical signal, and this electrical signal is transmitted by a transmitting device 19 integrated with or separate from the photoelectric conversion device 18, then received by a receiving device installed on the ship 16, and transmitted to a CRT, etc. of the receiving device. The status of the fishing net can be displayed and monitored on the display device.

FIG. 4 is a sectional view of a light emitting device for a fishing net according to another embodiment of the present invention, in which a connecting portion 6 for connecting a fishing net rope 5 is provided at the tip of the light emitting device main body 4, and a rear part of the light emitting device main body 4 is provided. A tail fin 9 is provided on the. Further, a water flow intake 20 is provided near the connection portion, and a rotatable water flow inlet 20 is provided at a position opposite to the inside of the light emitting device main body 4 behind the water flow intake 20.
Two water wheel type fans 21 and 22 are provided, and a generator is attached to each of these fans 21 and 22. Further, in this embodiment, the light emitting device is provided on the side of the light emitting device main body 4 similarly to the previous embodiment.

In the light-emitting device for fishing nets of this embodiment, since water wheel type fans 21 and 22 are used, the light-emitting device main body 4
In addition, the water flow intake port 20 can be made wider, and the water flow in the water fans 21 and 22 can be made faster.

[Effect of idea]

As is clear from the above explanation, the present invention uses a light-emitting device installed at a predetermined location on a fishing net, which is pulled by the fishing net, and when the fishing net is pulled, the rotor blades are rotated by the water flow to rotate the generator, and the light is emitted by private power generation. Since the body can emit light, there is no need to supply power to the light emitting body from the outside, so there is an advantage that the construction of the fishing net can be simplified.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view of a light emitting device for fishing nets according to an embodiment of the present invention, Fig. 2 is a circuit diagram of the light emitting device for fishing nets shown in Fig. 1, and Fig. 3 is a diagram showing the light emitting device for fishing nets shown in Fig. 1 installed. A schematic configuration diagram of a fishing net, FIG. 4 is a side sectional view of a light emitting device for a fishing net according to another embodiment of the present invention, and FIGS. 5 a and b
is a schematic explanatory diagram of the state of a fishing net in the sea. 4...Light emitting device body, 5...Rope, 6...Connection part, 7...Light emitting part, 8...Light emitter, 9...Tail, 10...Rotary blade, 11...Power generator, 12...
Circuit section, 13... Light emitting device, 14... Battery,
15...Switch, 20...Water flow intake.

Claims (1)

[Scope of utility model registration request] A connecting part for connecting a rope at a predetermined point of a fishing net is provided at the tip of the light-emitting device main body, a tail is provided at the tail part, and a light-emitting part with a built-in light-emitting body is provided at the side part, and the light-emitting device main body is rotatably mounted. A generator equipped with rotating rotor blades, a battery, and a circuit unit incorporating a switch are provided, and a water flow inlet and an outlet are provided in the light emitting device main body, and the water flow is guided into the light emitting device main body to generate the power. A light-emitting device for a fishing net, characterized in that the rotor blade of the machine is configured to rotate.