JPH0923802A - Application device for agrochemical or the like and application of agrochemical or the like - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an application device capable of carrying out controlling operation of rice plant growing in a paddy field by light labor safely, not making an operator walk into a paddy field, without receiving chemical toxicity, capable of extremely economizing a control cost due to a simple structure and an inexpensive manufacturing cost. SOLUTION: This application device is equipped with a boat 12 having buoyancy, a nozzle mechanism 14 attached to the boat 12, a chemical supplying hose 16 connected to the nozzle mechanism 14 and a chemical supplying part 18 connected to the chemical supplying hose 16. A boat 12 is floated between stock lines of rice plant of a paddy field and the chemical supplying hose 16 is connected to the nozzle mechanism 14. A chemical is sprayed from the nozzle mechanism 14 while reciprocating the boat 12 between the stock lines by alternately drawing out and bringing back the chemical supplying hose 16 to perform controlling operation of rice plant.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spraying device for pesticides and the like and a method for spraying pesticides on paddy rice grown in paddy fields.

[0002]

2. Description of the Related Art In recent years, rice farming has been required to improve productivity in order to gradually expand rice imports and to eliminate the domestic and foreign disparities. For this reason, large plots of farm fields are being promoted, and agricultural management policies that integrate management areas are being developed. As for the cultivation method of rice cultivation in a large-compartmented field, low-cost labor-saving cultivation is being studied, and various research and development are being conducted. Among them, a large-scale control method suitable for large-scaled fields has become a major issue, and while an operator carries a conventional power sprayer on his back, an assistant grasps the end of the air hose connected to the power sprayer. The method of spraying the pesticide powder while pumping the pesticide powder into the air hose while walking along the ridges on both sides of the field makes it difficult to handle the burden on the operator. In addition, even if a large power sprayer is installed on a tractor, etc., and an air hose is also connected and sprayed, a large amount of pesticide powder floats up in the air because of the large spray pressure of the power sprayer, and it spreads to farmers around the field. There is a high possibility that they will be scattered and that workers will be contaminated with pesticide powders, which will endanger their health. Therefore, aerial spraying with manned helicopters and radio-controlled helicopters, or agrochemical spraying with a passenger management machine has been studied and is being carried out as a control for large-scaled fields.

[0003]

[Problems to be Solved by the Invention] However, in the above-mentioned manned helicopter spraying of pesticides, there is a risk that the living area adjacent to the field will be contaminated with the pesticide and the health of the residents will be impaired. Further, the radio control helicopter is expensive to manufacture, and it is necessary for an operator to operate the device, to fill the medicine, to display the spraying area, and the like, which requires a lot of labor. Furthermore, in the passenger management machine, there is a concern that the rice may be pushed down because it runs in the row of growing rice.
There were problems such as high manufacturing costs.

The present invention has been made in view of the above-mentioned conventional problems, and an object thereof is to prevent pest control work in a paddy field without requiring an operator to enter the paddy field and to prevent chemical damage.
An object of the present invention is to provide a spraying apparatus for agricultural chemicals and a method for spraying agricultural chemicals, which is characterized by light labor, safe operation, simple structure, inexpensive manufacturing cost, and significant saving of pest control costs.

[0005]

In order to achieve the above object, the invention according to claim 1 provides a hull 12 having buoyancy.
And an agrochemical comprising an injection mechanism 14 installed on the hull 12, a chemical solution supply hose 16 connected to the injection mechanism 14, and a chemical solution supply unit 18 connected to the chemical solution supply hose 16. And the like.

Further, in the invention according to claim 2, the injection port mechanism 14 may be provided with an injection port 38 for injecting a chemical liquid to both side portions of the hull 12.

Further, in the invention according to claim 3, the injection port 38 may be installed at a position above the hull 12.

Further, in the invention according to claim 4, the injection port mechanism 14 includes a first injection port 38a for injecting a chemical liquid in a direction diagonally intersecting the moving direction of the hull 12, and the hull 1
The second injection port 38b for injecting the chemical liquid in a direction perpendicular to the moving direction of 2 may be provided.

Further, in the invention according to claim 5, in the first aspect, the first
The injection port 38a may be arranged obliquely rearward with respect to the traveling direction of the hull 12.

Further, in the invention according to claim 6, the hull 12 is provided with a chemical liquid supply passage 24 arranged in the bottom surface thereof along the longitudinal direction of the same, and the chemical liquid supply passage 24 is provided with the chemical liquid supply passage 24. Are connected to the bases of the first and second injection pipes 42a and 42b, and the upper portions thereof are provided so as to project upward of the hull 12, and the first and second injection ports 38a are provided on the upper end side thereof. ,
38b may be connected.

Further, in the invention according to claim 7, the injection port mechanism 14 may be provided with an injection switching mechanism 44 for injecting the chemical liquid from the injection port 38 in different directions.

Further, in the invention according to claim 8, the injection switching mechanism 44 is connected to the operation cord 46 disposed along the chemical liquid supply hose 16 and the operation cord 46, and is connected to the chemical liquid supply path. Opening / closing valves 48a, 4a which are provided in between and which perform injection switching of the injection port 38 for injecting in different directions.
8b and may be provided.

Further, in the invention according to claim 9, a hose projecting from an end portion of the hull 12 at one end of the chemical liquid supply passage 24 of the hull 12 for detachably connecting the chemical liquid supply hose 16 thereto. The joint 64 may be provided.

According to the tenth aspect of the invention, the chemical liquid supply hose 16 is attached to the elastic hose 68 having the elastic core wire 66 provided therein and the outer peripheral surface of the elastic hose 68, and has a small specific gravity and buoyancy. And a buoyancy sheet 70 formed of a large material.

Next, the invention according to claim 11 is the paddy 72
The hull 12 is floated on the water surface between the stocks of the rice 74 of
The chemical solution supply hose 16 connected to the chemical solution supply unit 18 is connected to the injection port mechanism 14 installed at 2, and the rice paddy 72 in the paddy field 72 is fed out from the end of the paddy field 72 and then pulled back. Both sides of the hull 12 that runs between the stocks of the rice 74 while making the hull 12 levitate between the 74 stocks and at the same time supplying the chemical solution from the chemical supply unit 18 to the jet mechanism 14 via the chemical supply hose 16. It consists of a method of spraying pesticides, etc. by spraying a chemical solution on.

Further, in the invention according to claim 12, the injection port mechanism 14 includes a first injection port 38a for injecting a chemical liquid in a direction diagonally intersecting the moving direction of the hull 12, and the hull 12 of the same. The second injection port 38b for injecting the chemical liquid in a direction perpendicular to the moving direction is provided, and the chemical liquid is sprayed on both sides of the boat body 12 moving at the first injection port 38a. The chemical liquid may be sprayed to the outside of the spraying range of the chemical liquid by the second injection port 38b.

[0017]

When controlling the growing rice in the paddy field with the spraying device for pesticides according to claim 1 of the present invention, the chemical solution supply unit is arranged on the road side of the paddy field, and the row of growing rice stocks is arranged. Float the hull between and connect the end of the chemical supply hose to this hull. Therefore, the chemical solution is pressure-fed from the chemical solution supply section to the jetting mechanism of the hull through the chemical solution supply hose, and the chemical solution supply hose is extended from the end side of the paddy field to advance the hull and to the other end side of the paddy field. After the body arrives, the hull is pulled back and the hull is reciprocally levitated between the stocks, and the chemical solution is sprayed from the jet mechanism while spraying the chemical solution on the rice on both sides where the hull advances. When spraying between one stock row is finished, move laterally at intervals of multiple stock rows,
The control work in the field of one large plot is completed while moving the hull back and forth between the stock rows again. Accordingly, it is possible to perform the work of controlling the growing paddy rice safely without the need for the worker to enter the paddy field, with no chemical damage, and with light labor.

According to a second aspect of the present invention, the injection port mechanism includes an injection port for injecting a chemical liquid to both sides of the hull. The hull is levitated in the paddy field, and the chemical solution can be automatically sprayed on both sides of the hull, and the chemical solution can be sprayed by reciprocating while moving the hull linearly in the paddy field.

According to a third aspect, the injection port is
It is installed above the hull. While moving the hull, the chemical solution can be sprayed over a wide area on the upper surface of the rice.

According to a fourth aspect of the present invention, the injection port mechanism includes a first injection port for injecting a chemical liquid in a direction diagonally intersecting the moving direction of the hull and a direction perpendicular to the moving direction of the hull. A second injection port for injecting the chemical liquid in the intersecting direction. The hull is moved back and forth between the stock rows, and the chemical solution is evenly and widely spread on both sides of the forward route, which are close to the hull from the first jet, and on the backward route, which is both sides of the hull separated from the second jet. it can.

According to a fifth aspect of the present invention, the first injection port is arranged obliquely rearward with respect to the traveling direction of the hull. The injection pressure of the chemical liquid injected from the first injection port can be used as a propulsive force in the traveling direction of the boat body.

According to a sixth aspect of the present invention, the hull is provided with a chemical liquid supply passage arranged on the bottom surface thereof along the longitudinal direction of the hull, and the chemical liquid supply passage has first and second chemical liquid supply passages. The base portion of the second injection pipe is connected, and the upper portion thereof is provided so as to project upward from the hull, and the first and second injection ports are connected to the upper end portion side thereof. The hull can be used as an injector for spraying a chemical solution by reciprocating the hull in a paddy field.

According to a seventh aspect of the present invention, the injection port mechanism is provided with an injection switching mechanism for injecting the chemical liquid from the injection port in different directions. The hull is moved back and forth within one row while moving the row of rice stocks in the paddy field, and in the outward path, the chemical solution is jetted obliquely rearward from the jet port. Further, in the return path, the spray direction can be switched so that the chemical liquid is sprayed from the spray port to the both side methods in a crossing manner.

According to the eighth aspect, the injection switching mechanism is provided with an operation cord arranged along the chemical liquid supply hose, linked to the operation cord, and interposed in the chemical liquid supply passage. An on-off valve that is provided and that switches the injection of the injection port that injects in different directions. The injection switching of the injection port is remotely controlled by the tow line according to the reciprocating movement of the hull, and there is no danger of the operator inhaling the chemical liquid, and the chemical damage can be prevented.

According to a ninth aspect of the present invention, a hose joint is provided at one end of the chemical liquid supply passage of the hull, the hose joint projecting from the end of the hull and detachably connecting the chemical liquid supply hose. There is. The hull and the chemical solution supply hose can be separated and transported to the site to prevent transportation, etc., and at the work site, the chemical solution supply hose can be attached / detached to / from the chemical solution supply path for the control work.

According to a tenth aspect of the present invention, the chemical liquid supply hose includes an elastic hose having an elastic core wire extending therein.
A buoyancy sheet mounted on the outer peripheral surface of the elastic hose and formed of a material having a small specific gravity and a large buoyancy. Along with the hull, the chemical solution supply hose can be floated on the water surface in the paddy field, and the hull can smoothly reciprocate. The pest control work is light labor, has high workability, and can be safely promoted.

Next, according to the method for spraying pesticides and the like according to claim 11, the hull is floated on the water surface between the rice stocks of the paddy field, and the injection mechanism installed in the hull is connected to the chemical solution supply section. The chemical solution supply hose is connected, and the hull is reciprocally levitated between the rice stocks in the paddy field by feeding out the chemical solution supply hose from the end of the paddy field and then pulling it back.At the same time, the chemical solution supply section passes through the chemical solution supply hose. The chemical solution is sprayed on both sides of the hull running between the rice stocks while supplying the chemical solution to the jetting mechanism. Workers do not have to enter the paddy field to control the growing rice, and there is no chemical damage, and light work can be performed safely. In addition, since the structure of the hull and the chemical solution supply hose is simple and the manufacturing cost is low, the control cost can be greatly saved.

According to a twelfth aspect of the present invention, the injection port mechanism includes a first injection port for injecting a chemical liquid in a direction diagonally intersecting the moving direction of the hull and a direction perpendicular to the moving direction of the hull. A second injection port for injecting the chemical liquid in a direction intersecting with the first injection port, and spraying the chemical liquid on both sides of the boat body moving at the first injection port,
The chemical solution is sprayed from the second spray port to the outside of the spray range of the chemical solution from the first spray port. The hull is moved back and forth within one row of rice in the paddy field, the chemical is sprayed obliquely rearward from the injection port on the outward path, and the chemical solution is sprayed from the injection port to both sides on the return path. The propelling force is assisted by the obliquely rearward injection pressure of the chemical liquid, and the injection amount of the chemical liquid and the spraying range can be easily adjusted. Also, the chemical solution can be evenly spread over a wide area on both sides where the hull moves back and forth.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT A preferred embodiment of the present invention will be described below with reference to the accompanying drawings. 1 to 6 show a spraying device 10 for agricultural chemicals according to an embodiment of the present invention. As is clear from the figure, the spraying device 10 for agricultural chemicals and the like has a boat body 12 having buoyancy and an injection port mechanism 1 installed on the boat body 12.
4, a chemical liquid supply hose 16 connected to the injection port mechanism 14, and a chemical liquid supply unit 18 connected to the chemical liquid supply hose 16.

As shown in FIGS. 1, 2 and 3, the hull 12
Is made of a foam material or the like having a small specific gravity, and is formed into a flat and elongated ship shape. In the embodiment, the hull 12
Is, for example, formed into a flat and slender hull 22 made of foamed styrene or the like. At the lower positions on both port sides of this hull 22, weight frames 20 and 20 are fixed along the port side with a metal material,
The weight frames 20 and 20 are connected by a plurality of connecting frames 21. As a result, the hull 12 is light and can float on the water surface in the paddy field, and can be easily moved while operating the connected chemical solution supply hose 16. Further, even if the hull 12 is tilted toward the port side during the forward / backward movement, the weight frame 20 of the metal material is used.
The restoring moment caused by is larger than the overturning moment, and it is possible to prevent the hull from overturning and to move stably in the paddy field. The material of the hull 22 is not limited to the foamed material such as synthetic resin, and any material may be selected as long as the material has buoyancy and can easily move on the water surface. Also,
Although the weight frame 20 is provided along both port sides, the weight frame 20 is not necessarily limited to this, and a weight having an arbitrary shape may be fixed to a lower position on both port sides.

On the bottom surface side of the hull 22, a chemical solution supply passage 24 is provided from the end of the hull 22 on the side of feeding into the paddy field to a substantially central position. The injection port mechanism 14
Is communicated with the chemical liquid supply path 24 and rises above the hull 22. As shown in FIG. 9, the chemical liquid supply unit 18 is installed on, for example, a dolly 28 towed by a tractor 26, a hose winder 30 in which a floating hose 16 is retractably stored, and a wound chemical liquid supply unit 30. A power sprayer 32 connected to the hose 16 and a chemical liquid tank 34 are provided. Chemical liquid supply hose 16 wound on hose winder 30
The leading end side of is guided by a guide roller 36 and is connected to the chemical liquid supply path 24 of the hull 22.

Then, the chemical solution supply unit 18 is stopped on the road side of the paddy field, and the hull 1 is placed between the row of growing rice in parallel with the ridge.
2 is floated and the chemical solution in the chemical solution tank 34 is jetted from the injection port mechanism 14 while being pressure-fed to the chemical solution supply hose 16 by the power sprayer 32, and at the same time, the worker grips the chemical solution supply hose 16 on the chemical solution supply section 18 side. The hull 12 is extended and the hull 12 floating on the water surface between the stock rows is advanced. When the hull 12 reaches the other end of the field, the hull 12 is moved backward while pulling back the chemical solution supply hose 16. 12 hulls in one stock row
After reciprocating and spraying the chemical solution, the worker lifts the hull 12 on the side of the chemical solution supply unit 18 and moves laterally by a required distance, and floats the hull 12 between the other stock rows again. The chemical solution is sprayed from the injection port mechanism 14 of the hull 12 while advancing the hull 12 to the other end side between the stock rows while feeding the chemical solution supply hose 16.

As a result, the operator can carry out the work of controlling the rice growing in the paddy field without entering the paddy field, there is no chemical damage such as spraying the sprayed chemical solution on the head, and labor is required to move the hull 12. No, it can be done safely. Further, the structure of the hull, the chemical liquid supply hose 16 and the like is simple, the manufacturing cost is low, and the control cost can be greatly saved. Although the chemical solution supply unit 18 is installed on the dolly 28, it is not limited to the dolly and may be installed on a luggage carrier such as a truck.

The injection port mechanism 14 is provided with an injection port 38 for injecting a chemical solution to both side portions of the hull 12, and this injection port 38
Are installed above the hull 12. As a result, the chemical solution can be automatically sprayed to the areas on both sides where the hull 12 moves while levitating the hull 12 in the paddy field. And when moving the hull 12 linearly in the paddy field,
Agricultural chemicals can be sprayed by simply reciprocating between the row of rice plants while laterally shifting the row of rice plants, and the spraying efficiency can be improved. Further, when the injection port 38 is set horizontally, the pesticide can be efficiently sprayed on the upper surface side of the growing rice, and the chemical solution can be sprayed over a wide range.

As shown in FIGS. 1 and 7, the injection port mechanism 14 includes a first injection port 38a for injecting a chemical liquid in a direction diagonally intersecting the moving direction of the hull 12 and a movement of the hull 12 thereof. The second injection port 3 for injecting the chemical liquid in the direction perpendicular to the direction.
8b. The first injection port 38a is arranged in a substantially V shape in a plan view so as to inject the liquid medicine obliquely rearward with respect to the traveling direction of the hull 12. This allows the hull 12 to move back and forth within the paddy field while
The chemical solution can be evenly and widely sprayed over a wide range on both sides close to and on both sides separated from the hull 12. Further, the injection pressure of the chemical liquid injected obliquely rearward from the first injection port 38a can be used as a propulsive force in the traveling direction of the hull 12, and the working strength can be increased without requiring a force to extend the chemical liquid supply hose 16. It will be reduced.

In the embodiment, the chemical liquid supply passage 24 arranged on the bottom surface of the boat body 12 is formed of a lightweight pipe body 40 such as light metal or hard synthetic resin. As shown in FIG. 3 and FIG. 7, the base portions of the two first injection pipes 42a and the second injection pipes 42b are spaced apart from each other in the frontward and rearward positions of the hull 12 in the longitudinal traveling direction. It is connected to the tube body 40 and is provided so as to project upward from the hull 12. The first and second injection pipes 42a and 42b are also made of light metal or hard synthetic resin. The first injection port 38a is provided at the upper end of the first injection pipe 42a on the front side in the traveling direction of the hull 12, and the upper end of the second injection pipe 42b on the rear side in the traveling direction of the hull 12. The second injection ports 38b are communicated with each other.

Then, while the hull 12 is being advanced, the chemical liquid is sprayed from the first injection port 38a in the obliquely rearward direction, and the chemical liquid is sprayed from the second injection port 38b to both sides of the hull 12. As shown in FIGS. 9 and 10, the spraying of the chemical liquid from the first and second injection ports 38a and 38b is carried out from the first injection port 38a when the hull 12 is advanced by feeding the chemical liquid supply hose 16. Disperse the chemical solution in a range close to both sides of the body 12, and further spray the chemical solution alternately in a range separated from both sides of the hull 12 from the second injection port 38b when the hull 12 is moved backward while pulling back the chemical solution supply hose 16. To do. Thus, the hull 12 can be used as an injector for spraying the chemical liquid while reciprocating in the front-back direction between the rice stock rows in the paddy field, and the chemical liquid can be sprayed over a wide area in the paddy field.

The first injection port 38a may be arranged obliquely toward the front part, which is the traveling direction of the hull 12, and at this time, the second injection port 38b may be arranged when the hull 12 is moved forward.
May be sprayed in a range separated from both sides from the first injection port 38a in the diagonal direction of the front part of the hull when the hull 12 is moved backward. In addition, the first and second injection ports 3
The chemical liquid is not limited to be sprayed forward and backward from the boat body 12 from 8a and 38b, but the chemical liquid is simultaneously sprayed from the first and second injection ports 38a and 38b when moving forward and backward. It may be that.

The injection port mechanism 14 includes two first and second injection mechanisms.
An injection switching mechanism 44 for ejecting the chemical liquid from the injection ports 38a and 38b in different directions is provided. As shown in FIGS. 3 and 5, the injection switching mechanism 44 is provided with an operation cord 46 arranged along the chemical liquid supply hose 16 and in association with the operation cord 46 so as to be interposed in the chemical liquid supply passage. Open / close valves 48a, 4 provided for switching the injection of the first and second injection ports 38a, 38b for injecting the chemical liquid in different directions.
8b.

In the embodiment, the on-off valves 48a, 48
b is the first and second communication with the chemical liquid supply passage 24 of the hull 12.
The injection pipes 42a and 42b are communicated with positions near the upper surface of the hull 12. Each of the on-off valves 48a and 48b has a handle 50, which is opened when the handle 50 is horizontally laid down, and is set to be closed when the handle 50 stands upright. Above the on-off valves 48a, 48b, guide rollers 52, 52 are pivotally supported by the first and second injection pipes 42a, 42b, and two guide rollers 54 are also provided on the upper surface on the rear side of the hull 12. , 54 are pivotally supported. The operation wire 56 connected to the operation handle 50 of the open / close valve 48a on the side of the first injection pipe 42a is horizontally laid down.
Is guided by the guide rollers 52, 52 to be connected to the second injection pipe 42.
The b-side on-off valve 50 is connected to the operation handle 50 set in the vertical direction, and further has guide rollers 54 on the upper surface of the hull 12.
54.

In this state, the opening / closing valve 4 on the side of the first injection port 38a
8a is opened, the opening / closing valve 48b on the side of the second injection port 38b is closed, and when the operation line 56 is pulled to the rear side of the hull 12, the opening / closing valve 48a on the side of the first injection port 38a is opened.
The operating handle 50 stands up and the valve is closed, and the second injection port 3
The opening / closing valve 48b on the 8b side is opened by the operation handle 50 falling horizontally. The operating wire 56 and the chemical solution supply hose 16
Is connected and detached with a joint 58 to the operation cord 46 arranged along the line, and the operation cord 46 is detachably attached to a plurality of stoppers 60 provided at intervals in the chemical solution supply hose 16,
A traction ring 62 is provided at its end.

The chemical solution supply hose 16 is connected to the chemical solution supply section 18
When it is drawn out from the hose winder 30, the operation cord 46 wound in the winding portion (not shown) is drawn out and the chemical solution is sprayed from the first injection port 38a while being attached to the stopper 60. Next, when pulling back the chemical liquid supply hose 16, the operation cord 46 is pulled to pull the first injection port 38.
The a-side on-off valve 48a is closed, the second injection port 38b-side on-off valve 48b is opened, and the chemical solution is sprayed from the second injection port 38b. When the chemical solution supply hose 16 is stored in the hose winder 30, the operation cord 46 is removed from the chemical solution supply hose 16 and stored in another winding section.

As a result, the hull 12 is reciprocated between the row of rice stocks in the paddy field, and the first injection port 38a is provided on the outward path.
The liquid medicine is jetted obliquely rearward in the direction of travel, and in the return path, the pulling ring 62 at the end of the operation cord 46 is gripped and pulled, and the opening / closing valve 48a on the first injection port 38a side is closed and at the same time. The opening / closing valve 48b on the side of the second injection port 38b is opened. Then, the injection direction is switched so as to inject the chemical solution from the second injection port 38b in a crosswise manner to the two-way method, and the liquid is drawn back. Then, on the outward path, the thrust is assisted by the injection pressure of the chemical liquid obliquely rearward. Further, the injection amount of the chemical liquid, the spraying range, etc. can be easily adjusted by switching the injection direction. In addition, the first and second injection ports 3 are arranged in accordance with the reciprocating movement of the hull 12.
8a, 38b injection switching can be performed by remote control,
There is no danger of the operator inhaling the sprayed chemical solution, and the chemical damage can be prevented.

The injection switching mechanism 44 is provided with the on-off valve 4
It is not limited to open / close either 8a or 48b by remote operation by the operation cord 46, and
8b, the solenoid valves are replaced by first and second injection pipes 42a, 42b.
Alternatively, the control lines may be wired along the chemical liquid supply hose 16 to switch the injection of the first and second injection ports 38a and 38b while opening and closing the respective solenoid valves by a switch operation. Further, the operator may manually switch the open / close valve between the forward path and the return path of the boat body 12.

As shown in FIGS. 3 and 7, one end of the chemical liquid supply passage 24 of the hull 12 is projected from the end of the hull 12 and the chemical liquid supply hose 16 is detachably connected, A hose joint 64 such as a socket joint and a swivel joint is provided. As a result, the hull 12 and the chemical liquid supply hose 1
6 and 6 can be stored compactly and transported to the site without being bulky, and damage to the hull 12 and the chemical solution supply hose 16 can be prevented. In addition, the chemical supply hose 1 at the work site
The control work can be carried out while easily attaching and detaching 6 to the chemical liquid supply passage 24 of the hull 12.

As shown in FIG. 6, the chemical liquid supply hose 16 is
It has an elastic hose 68 having an elastic core wire 66 in communication therewith, and a buoyancy sheet 70 mounted on the outer peripheral surface of the elastic hose 68 and made of a material having a small specific gravity and a large buoyancy. As the elastic core wire 66, for example, a glass fiber wire having rigidity is used, and as the elastic hose 64, a hose made of polyethylene, vinyl chloride or the like and having a small specific gravity is used. Then, a buoyancy sheet 70, which is a material having a small specific gravity and a large buoyancy, formed of a foamed sheet such as foamed styrene, is fixed to the outer peripheral surface of the elastic hose 68 in a circular shape.

As a result, the chemical liquid supply hose 16 is light and can float on the water surface of the paddy field, and the chemical liquid supply hose 16 does not come into contact with the soil at the time of its payout and pullback operations and resists the payout and pullback operations. Can be done smoothly without. Therefore, the control work can be carried out with light work, high workability, and can be safely promoted together with the hull 12 having buoyancy.

In this embodiment, the first and second injection ports 38a and 38b are the first and second injection pipes 42a and 42b.
However, the invention is not limited to this, and the two first and second injection ports 38a, 3a are provided at the upper end of one injection pipe.
8b may be provided and the on-off valve may control the injection of the chemical liquid. In addition, it is possible to rotate the injection direction of one injection port diagonally before and after the traveling direction of the hull, or to automatically change from the diagonal direction to the direction perpendicular to the traveling direction of the hull. May be configured to save the parts material. In addition, each injection port may be installed directly on the upper surface side of the hull 12 so as to directly inject the chemical solution into the row of rice lines, thereby efficiently invading the pests parasitic on the rice line. It can be controlled.

Next, the method for spraying pesticides according to the present invention will be described.
The operation of the spraying device 10 for the agricultural chemicals and the like will be described. As shown in FIGS. 8 and 9, when controlling the growing rice 74 in the paddy field 72, the chemical solution supply unit 1 is installed on the road 76 side of the paddy field 72.
8 is stopped, the hull 12 is floated between the row of growing rice in parallel to the ridge, and the hose joint 64 of the hull 12 is joined to the end of the chemical solution supply hose 16. Therefore, by driving the power sprayer 32 of the chemical solution supply unit 18 to pump the chemical solution from the chemical solution supply hose 16 to the injection port mechanism 14, the chemical solution supply hose 16 is fed from the end side of the paddy 72, and then pulled back. The hull 12 is reciprocally levitated between the stocks of the paddy fields, and the chemical solution is sprayed onto the rice plants on both sides of the hull 12 while the chemical solution is being jetted from the jet mechanism 14. When the spraying between one stock row is completed, the stock rows are moved laterally at intervals and the hull 12 is reciprocally moved between the stock rows to finish the control work in the field of one large plot. To do. As a result, it is not necessary for workers to enter the paddy field to control the growing rice, and there is no chemical damage.
It can be carried out safely with light labor, and the structure of the hull, chemical supply hose, etc. is simple, the manufacturing cost is low, and the control cost can be greatly saved.

Further, the injection port mechanism 14 is used for the hull 1
It is provided with a first injection port 38a for injecting a chemical liquid in a direction diagonally intersecting the moving direction of 2 and a second injection port 38b for injecting a chemical liquid in a direction orthogonal to the moving direction of the boat body 12. . The on-off valve 48 that communicates with the first injection port 38a
The opening / closing valve 48 that opens a and communicates with the second injection port 38b.
The hull 12 is advanced by feeding the chemical liquid supply hose 16 with the valve b closed, and as shown in FIG. 9, the chemical liquid is injected obliquely rearward in the advancing direction of the hull 12 from the first injection port 38a. While being sprayed, the chemical solution is sprayed on the areas on both sides close to the hull 12. At this time, the operation cord 46 is fed out along the chemical liquid supply hose 16, and when the hull 12 reaches the other end side of the field, the operation cord 46 is pulled to eject the injection switching mechanism 44.
By this, the opening / closing valve 48a on the side of the first injection port 38a is closed, and the opening / closing valve 48b on the side of the second injection port 38b is opened, so that the chemical solution is directed to both sides perpendicular to the hull 12 toward the first injection port 38a.
As shown in FIG. 10, the chemical liquid supply hose 16 is pulled back to the outer side of the chemical liquid spraying range according to the above, and the spraying between one stock row is completed.

After the spraying for one stock row is completed, the operator lifts the hull 12 on the side of the chemical solution supply unit 18 to make the
The hull 1 is moved laterally by an interval of about m, and the hull 12 is again fed between the rows of rice stock while the hose 16 is supplied to the hull 1.
The chemical solution is sprayed from the injection port mechanism 14 of the hull 12 while advancing 2 to the other end side between the stock rows. Therefore, the hull 12 is reciprocally moved within one row of the rice stocks in the paddy field, the chemical liquid is jetted obliquely rearward from the first injection port 38a on the outward path, and the second injection port 38b on both sides on the return path. It is possible to easily adjust the injection amount of the chemical liquid, the spraying range, etc. by jetting the chemical liquid in a crosswise direction and assisting the propulsive force with the injection pressure of the chemical liquid obliquely rearward. Moreover, the control efficiency is improved while the chemical solution is evenly spread over a wide area on both sides where the hull 12 reciprocates. The pesticide spraying device and spraying method of the present invention are not limited to the control of rice in paddy fields, but may be carried out, for example, in the control of rush grown in paddy fields. Further, the present invention is not limited to the application of the drug solution, but may be applied to the application of powder.

[0052]

As described above, according to the spraying device for agricultural chemicals and the like according to claim 1, the hull having buoyancy, the jet mechanism installed on the hull, and the jet mechanism By including the connected chemical liquid supply floating hose and the chemical liquid supply unit connected to this chemical liquid supply floating hose,
Workers do not have to enter the paddy field to control the growing rice, and there is no chemical damage, and light work can be performed safely. In addition, the structure of the hull and floating hose is simple, the manufacturing cost is low, and the pest control costs can be greatly saved.

According to a second aspect of the present invention, the injection port mechanism is provided with injection ports for injecting a chemical solution to both sides of the hull, so that the hull can be moved while the hull is levitating in the paddy field. The chemical solution can be automatically sprayed on both sides of the moving area, and when moving the hull in a straight line in the paddy field, simply moving the hulls of the rice stock while reciprocating can improve the spraying efficiency. .

According to claim 3, the injection port is
By being installed above the hull, the chemical solution can be sprayed over a wide range, and when the spray port is set horizontally, it can be sprayed efficiently on the upper surface side of the rice.

According to a fourth aspect of the present invention, the injection port mechanism includes a first injection port for injecting a chemical liquid in a direction diagonally intersecting the moving direction of the hull and a direction perpendicular to the moving direction of the hull. By providing the second injection port for injecting the chemical liquid in the intersecting direction, while reciprocating the hull in the paddy field, the chemical liquid is applied to both side regions close to the hull and both side regions separated from the hull. Spread evenly over a wide area, and there is no leakage of spray.

According to the present invention, the first injection port is arranged obliquely rearward with respect to the traveling direction of the hull, so that the chemical liquid injected from the first injection port is injected. The pressure can be used as a propulsive force in the traveling direction of the hull,
The work effort is reduced without the force required to pay out the floating hose.

According to a sixth aspect of the present invention, the hull is provided with a chemical liquid supply passage disposed on the bottom surface thereof along the longitudinal direction of the same, and the chemical liquid supply passage has the first and second chemical liquid supply passages. The base portion of the second injection pipe is connected, the upper portion thereof is provided so as to project toward the upper side of the hull, and the first and second injection ports are connected to the upper end portion side thereof, whereby the hull is formed. Can be realized as an injector that sprays the chemical solution while reciprocating in the paddy field, and can spray the chemical solution over a wide area in the paddy field.

According to a seventh aspect of the present invention, the injection port mechanism is provided with an injection switching mechanism for injecting the chemical liquid in different directions from the injection port. While moving the row, the hull is reciprocated in one row, the chemical is sprayed obliquely rearward from the injection port on the outward path, and the chemical solution is sprayed in a crosswise direction from the injection port on the return path. By changing the injection direction and assisting the propulsive force with the obliquely backward injection pressure of the chemical liquid, the injection amount of the chemical liquid, the spraying range, etc. can be easily adjusted.

According to the eighth aspect, the injection switching mechanism is provided with an operation cord arranged along the chemical liquid supply hose, linked to the operation cord, and interposed in the chemical liquid supply passage. By being provided with an on-off valve that performs injection switching of the injection port that ejects in different directions, it is possible to remotely perform the injection switching of the injection port according to the reciprocating movement of the hull, There is no danger of the operator inhaling the sprayed chemical liquid, and chemical damage can be prevented.

According to a ninth aspect of the present invention, at one end of the chemical liquid supply passage of the hull is provided a hose joint projecting from an end of the hull and detachably connecting the chemical liquid supply hose. As a result, the hull and the chemical solution supply hose can be separated, and can be transported to the site without being bulky while being stored compactly, and damage to the hull and the chemical solution supply hose can be prevented.
In addition, the control work can be performed at the work site while connecting and disconnecting the chemical solution supply hose to the chemical solution supply passage.

According to a tenth aspect of the present invention, the chemical liquid supply hose includes an elastic hose having an elastic core wire in communication therewith,
By being attached to the outer peripheral surface of this elastic hose and having a buoyancy sheet made of a material with a small specific gravity and large buoyancy, the chemical solution supply hose can be extended while floating the chemical solution supply hose on the water surface of the paddy field. The pull-back operation can be performed smoothly without resistance, the control work is light labor, the workability is high, and it can be safely promoted.

Next, according to the method for spraying pesticides according to claim 11, the hull is floated on the water surface between the rice stocks of the paddy field, and the jet mechanism installed in the hull is connected to the chemical solution supply section. The chemical solution supply hose is connected, and the hull is reciprocally levitated between the rice stocks in the paddy field by feeding out the chemical solution supply hose from the end of the paddy field and then pulling it back.At the same time, the chemical solution supply section passes through the chemical solution supply hose. The chemical solution is sprayed on both sides of the hull that travels between rice stocks while supplying chemical solution to the spray port mechanism, so that the worker does not have to enter the paddy field to control the paddy rice during the growing process. No, it can be done safely with light labor. In addition, the structure of the hull and chemical supply hose is simple, the manufacturing cost is low, and the pest control cost can be greatly saved.

According to a twelfth aspect of the present invention, the injection port mechanism includes a first injection port for injecting a chemical liquid in a direction diagonally intersecting the moving direction of the hull and a direction perpendicular to the moving direction of the hull. A second injection port for injecting the chemical liquid in a direction intersecting with the first injection port, and spraying the chemical liquid on both sides of the boat body moving at the first injection port,
By spraying the chemical liquid at the second injection port on the outer side of the spraying range of the chemical liquid by the first injection port, the hull is reciprocated between one stock row of rice in the paddy field, and In the case of, the chemical liquid is injected obliquely rearward from the injection port, and in the return path, the chemical liquid is injected in a crosswise direction from the injection port in both directions, and the propulsive force is assisted by the injection pressure of the chemical liquid obliquely rearward. And the spray range can be easily adjusted. Further, the chemical solution is evenly spread over a wide area on both sides where the hull moves back and forth, and the spraying efficiency is improved.

[Brief description of drawings]

FIG. 1 is a plan view showing a hull of a spraying device for agricultural chemicals according to the present invention.

FIG. 2 is a bottom view of the hull shown in FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a sectional view taken along line BB of FIG. 1;

FIG. 5 is a partial front view of a hull and a chemical solution supply hose showing an injection switching mechanism.

FIG. 6 is a partially enlarged cross-sectional view along the longitudinal direction of the chemical liquid supply hose.

FIG. 7 is a perspective view of a hull and a chemical liquid supply section of the spraying device for agricultural chemicals according to the present invention.

FIG. 8 is a front view showing a state of controlling the inside of a paddy field with a spraying device for agricultural chemicals and the like.

9 is a plan view showing a state of controlling the inside of a paddy field with the spraying device for agricultural chemicals shown in FIG.

FIG. 10 is an explanatory diagram in which the spraying of the chemical liquid from the first and second injection ports of the injection port mechanism is seen through from the delivery side of the hull.

[Explanation of symbols]

 10 Agricultural Chemicals Dispersing Device 12 Boat Body 14 Injection Port Mechanism 16 Chemical Solution Supply Hose 18 Chemical Solution Supply Section 24 Chemical Solution Supply Path 38a First Injection Port 38b Second Injection Port 42a First Injection Pipe 42b Second Injection Pipe 44 Injection Switching Mechanism 46 Operation line 48a Open / close valve 48b Open / close valve 64 Hose joint 66 Elastic core wire 68 Elastic hose 70 Buoyancy sheet 72 Paddy field

Claims (12)

[Claims] 1. A hull having a buoyancy force, an injection port mechanism installed on the hull, a chemical solution supply hose connected to the injection port mechanism, and a chemical solution supply section connected to the chemical solution supply hose. A spraying device for pesticides and the like. 2. The spraying device for agricultural chemicals according to claim 1, wherein the spray port mechanism includes spray ports for spraying the chemical liquid to both sides of the hull. 3. The spraying device for agricultural chemicals according to claim 1, wherein the spray port is installed at a position above the hull. 4. The first injection port for injecting the chemical liquid in a direction diagonally intersecting the moving direction of the boat body, the injection port mechanism,
The spraying device for agricultural chemicals according to any one of claims 1 to 3, further comprising: a second injection port for injecting the chemical liquid in a direction perpendicular to the moving direction of the boat body. 5. The spraying device for agricultural chemicals according to claim 4, wherein the first injection port is arranged obliquely rearward with respect to the traveling direction of the hull. 6. The boat body is provided with a chemical liquid supply passage provided on a bottom surface portion thereof along a longitudinal direction of the boat body, and the chemical liquid supply passage has base portions of the first and second injection pipes. The pesticide according to any one of claims 1 to 5, wherein the pesticide according to any one of claims 1 to 5, wherein the pesticide is connected to the upper part of the hull, and the upper part of the hull is projected upward from the hull, and the first and second injection ports are connected to the upper end side of the hull. Etc. spraying device. 7. The spraying device for agricultural chemicals or the like according to claim 1, wherein the spraying mechanism is provided with a spraying switching mechanism for spraying the chemical liquid in different directions from the spraying port. . 8. The injection switching mechanism is provided with an operation cord arranged along the chemical liquid supply hose, and linked to the operation cord and provided in the chemical liquid supply path, and directed in different directions. And an on-off valve that switches the injection of the injection port to be injected by
The spraying device for agricultural chemicals according to claim 7, which comprises: 9. A hose joint, which projects from an end portion of the hull and which detachably connects the chemical solution supply hose, is provided at one end of the liquid medicine supply passage of the hull. A spraying device for agricultural chemicals according to any of the above. 10. The chemical liquid supply hose includes an elastic hose having an elastic core wire in communication therewith, and a buoyancy sheet mounted on an outer peripheral surface of the elastic hose and made of a material having a small specific gravity and a large buoyancy. A spraying device for agricultural chemicals or the like according to any one of claims 1 to 9, which comprises. 11. A hull is floated on the water surface between rice stocks in a paddy field, and a chemical solution supply hose connected to a chemical solution supply part is connected to an injection mechanism installed in the hull, and the hull is connected to the end of the paddy field. The hull is reciprocally levitated between the rice stocks in the paddy field by feeding out the chemical solution supply hose and then pulling it back. At the same time, the chemical solution is supplied from the chemical solution supply section to the jet mechanism via the chemical solution supply hose while traveling between the rice stocks. A method of spraying pesticides by spraying chemicals on both sides of the hull. 12. The injection port mechanism ejects a first injection port for injecting a chemical liquid in a direction diagonally intersecting the moving direction of the hull and a chemical liquid in a direction perpendicular to the moving direction of the hull. And a second injection port that does, and sprays the chemical liquid on both sides of the hull that moves at the first injection port, and outside the spraying range of the chemical liquid by the first injection port.
The method for spraying agricultural chemicals according to claim 11, wherein the chemical solution is sprayed at the second injection port.