JPH09233985A - Hover craft for paddy field and its agricultural chemical application method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use a hover craft for the application of agricultural chemicals to a paddy field. SOLUTION: A tank 10 for agricultural chemicals such as granular, granular water dispensible powder, water formulation and an applicator 11 for applying the agricultural chemicals are mounted to the hover craft main body, and red, blue and yellow light sources 14 are attached on both front/rear tip sides of the hover craft to remote-control its traveling and application. The hover craft does not lose thrust even at the time of going aground a riffle in the paddy field and is easy to operate by confirming a position and a direction by means of the light of the light source 14 even working distantly from its operator.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION Generally, when sowing pesticides, fertilizers, etc. on paddy fields, irrigation sites, etc., workers have to put on and take off rubber garments, and the preparation is complicated, and the work is also a heavy labor. . Therefore, the present invention has been made in consideration of mechanization of this work, and relates to a hovercraft for paddy fields which travels on the water surface and sprays a chemical.

[0002]

2. Description of the Related Art Conventionally, when spraying pesticides such as herbicides and pesticides on paddy fields, irrigation sites, etc., especially as a wide area spraying method, workers do not enter the muddy area, but along the surrounding pavement. There is a method of spraying a picture frame. The wide area in this case is, for example, about one section 40a, and there are several tens of these,
Each worker will spray hundreds of blocks. Since the same applies to the case of applying fertilizers, the case of applying pesticides such as herbicides and insecticides to a wide range of paddy fields and irrigation sites will be described below.

[0003] In the above-mentioned frame spraying, if the earth is built up on the bottom of the water and rises linearly from the surface of the water, and the soil on the surface of the water divides the section, there will be places where the medicine does not penetrate. Therefore, although airborne spraying by an aircraft is conceivable, using an airplane requires a large amount of cost, and depending on the wind direction, there is a risk that the airborne spray will spread to other areas.

On the other hand, the pesticide formulations to be sprayed include granules,
1 kg granules, flowables, liquids, oils and wettable granules are used. Each preparation is, for example, granules, 1 kilo granule is 100 to 3000 g per 10a, flowable agent, liquid agent,
Since oil-based agents are used in an amount of 100 to 1000 ml per 10a, and granular wettable powders are used in an amount of 40 to 250 g per 10a, there is a case where about 1/3 of the area is required compared with the conventional one. It can be mounted on a boat of about 2 m. Therefore, it has been proposed to remotely control and spray a small boat carrying these pesticides (see Japanese Patent Application No. 5-75404). It is equipped with an engine propeller and a rudder on the ship, and the propeller rotates to obtain propulsive force, which allows the speed to be increased considerably.

[0005]

However, if the boat speed cannot be made too low and the operator is unfamiliar with the boat operation, as shown in FIG. When you go straight and move to a distance, or when you change direction without knowing the distance interval, make a mistake such as getting too close to the ridge 3 and riding on the ridge 3 to draw a 90-degree turning radius of the road. There is. Also, earth embankment 4
If is protruding from the water surface, it will become an obstacle and operate,
It will make spraying difficult.

An object of the present invention is to provide a hovercraft for paddy fields, which has good operability and is used for spraying pesticides.

[0007]

In order to achieve the above object, the present invention provides a hovercraft body with granules, granule wettable powder,
A pesticide tank for liquids and the like and a spraying device for spraying the pesticide are installed, and running and spraying are remotely controlled. The hovercraft is characterized in that a light source is provided in a main portion of the contour of the hovercraft body, or the hovercraft is controlled to travel by the balance of the levitation airflow. In addition, a pesticide is mounted on the paddy hovercraft with the above configuration, and the paddy field is run by remote control,
It is characterized by spraying pesticides in the meantime.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION The paddy field hovercraft of the present invention can be equipped with a tank for pesticides such as granules, wettable powders, and liquids, and a spraying device for spraying the pesticides, and there is no passenger space It is a small one, and is designed to run and spray by remote control using wireless. For example, when the hovercraft is floated on a paddy field of 10 a (20 m × 50 m) and operated, first, the hovercraft is run toward the opposite bank. For the hovercraft at a distant position, since the light sources provided at the front and rear ends are shining, the orientation of the main body can be easily checked, and the course is changed with the light source as a guide. The color of the light source is red, blue,
Place green, yellow, etc. in the four corners. Further, when changing the direction by 90 degrees, the running direction and the front end are aligned by spinning 90 degrees depending on the balance of the levitation airflow. Further, the main body itself may be moved laterally due to the difference in the balance of the levitation air flow without having a propulsive force. The running speed in this case can be considerably reduced.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1 and FIG. 2, the hovercraft 5 for paddy field has a hull upper part covered with a cover 6 and a skirt 7 attached to the lower part. The hovercraft 5 is small enough to be lifted by one person. is there. Further, an air intake port 8 is provided in the front part of the hull of the hovercraft 5, a levitation engine 9 is attached inside the cover, and a downward airflow is generated by rotating the fan. The skirt 7 that suppresses this air flow may be equipped with a bag skirt with good stability, but floating efficiency, rough terrain,
Wear a finger skirt that follows obstacles well (see Japanese Patent Application No. 3-39608).

A tank 10 is provided inside the central portion of the cover 6.
Further, a spraying device 11 is provided, and two thrust fans 12 by a motor are arranged in parallel at the rear of the hull. The tank is equipped with a narrow bottom and a capacity of about 1 to 3 liters, and is designed to contain pesticides (herbicides) such as granules, flowables and wettable granules. A spraying nozzle (not shown), which is a discharge port of, is arranged at the lower part of the hull. Further, a radio control antenna wire 13 is provided at the front end of the hull, and a lamp 14 is attached to the tip thereof. A lamp 1 is also installed on both sides of the rear end of the hull.
The columns 15, 15 to which 4 is attached are erected. The antenna wire 13 and the column 15 are removable, and the lamp 14 may be an incandescent bulb or an LED.
The front lamp is arranged in red (R), the rear right lamp is arranged in blue (B), the rear left lamp is arranged in yellow (Y), and so on.

Actually, the hovercraft 5 is transported to the paddy field, the herbicide is put in the tank 10, the spraying device 11 is inspected, and the fuel and the battery are inspected. Then, attach the antenna wire and the column. When you start the engine 9,
A layer of pressurized air is formed inside the skirt 7 at the bottom of the hull and floats above the water surface. Then, the thrust motor is remotely operated by the manipulator to slowly move forward, and the spraying device 11 is operated at an appropriate location to spray the pesticide from the spraying nozzle arranged inside the skirt. Even if rice is planted on the path of Hovercraft 5, it will not crush even if it is bent, and it will be able to go straight ahead even if there is a mound on the bottom of the water and it protrudes from the surface of the water. The position and direction can be confirmed by observing the color of the lamp 14 even when the lamp is separated.

In spraying pesticides, the vortex flow of a pressurized air layer for floating may be used, so that the sheet is hung down on the outer periphery of the skirt so that it does not leak outside from the skirt 7 during spraying. Further, the spray nozzle may be provided outside the skirt 7. In such a case, a device for performing a neck swing operation may be used together.

The paddy hovercraft 5 shown in FIG. 3 has a rectangular shape close to a square, and the ladder 16 disposed at four internal locations intentionally shifts the levitation balance so that the lateral force of the difference is used for thrust. It is what Further, it is possible to proceed in the direction of the thick arrow without changing the direction, and it is not necessary to consider the turning radius. The rudder 16 may be arranged so that the front surface of the hovercraft 5 is orthogonal to the traveling direction. Further, instead of the ladder 16, a nozzle hole may be opened in the cover 6, and the nozzle hole may be opened and closed to advance the nozzle hole.

[0014]

EFFECTS OF THE INVENTION Since the present invention is configured as described above, when a hovercraft runs on a wide paddy field, it can go straight regardless of the water depth, and the pesticide can be sprayed as planned. Further, there is an effect that the position and direction can be confirmed by the lamp and remote operation is easy. Also,
By changing part of the levitation force into thrust, the traveling speed can be slowed down, and the pesticide can be sprayed reliably.

[Brief description of drawings]

FIG. 1 is a side view of a paddy field hovercraft according to an embodiment of the present invention.

FIG. 2 is a perspective view of the hovercraft shown in FIG.

FIG. 3 is a perspective view of a hovercraft of another embodiment.

FIG. 4 is a schematic diagram illustrating the operation of a conventional pesticide spraying boat.

[Explanation of symbols]

 5 Hovercraft 10 Agricultural chemicals tank 11 Spraying device 14 Light source

Claims (4)

[Claims] 1. A hovercraft body equipped with a tank for agricultural chemicals such as granules, wettable granules, and liquids, and a spraying device for spraying the agricultural chemicals, and the running and spraying are remotely controlled. Hovercraft for paddy fields. 2. The hovercraft for paddy fields according to claim 1, wherein a light source is provided on a main portion of the contour of the hovercraft body. 3. The paddy hovercraft according to claim 1, wherein the traveling is controlled by the balance of the air flow for levitation. 4. A pesticide for a paddy field hovercraft, characterized in that a pesticide is mounted on the paddy field hovercraft according to any one of claims 1 to 3, and the pesticide is sprayed on the paddy field by remote control. Dispersion method.