JP2024005794A - Herbicidal system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To widen the dispersion range of a herbicidal liquid.

SOLUTION: A herbicidal system according to one embodiment includes an agitator vehicle with a drum that produces a herbicidal liquid through a stirring function, a relay tank that stores the herbicidal liquid discharged from the drum, and a sprayer for dispersing the herbicidal liquid in the relay tank.

SELECTED DRAWING: Figure 1

COPYRIGHT: (C)2024,JPO&INPIT

Description

One aspect of the present disclosure relates to weeding systems.

Patent Document 1 discloses a herbicide that travels on roads and is equipped with a herbicide spraying device for spraying a herbicide and an automatic herbicide spraying control device for causing the herbicide spraying device to automatically spray the herbicide. A spray vehicle is listed.

Patent No. 5898813

There is a need for a mechanism that can expand the spraying range of herbicides.

A weeding system according to one aspect of the present disclosure includes an agitator vehicle equipped with a drum that generates a weeding solution using an agitation function, a relay tank that accommodates the weeding solution discharged from the drum, and a sprayer that sprays the weeding solution in the relay tank. Equipped with a machine.

In this aspect, the weeding liquid produced in the drum of the agitator vehicle is temporarily transferred to a relay tank, and the weeding liquid in the relay tank is sprayed by a sprayer. By combining an agitator vehicle, a relay tank, and a sprayer when spraying weeding liquid, it is possible to spray the weeding liquid even in areas where vehicles cannot enter. As a result, the spraying range of the weeding liquid can be expanded.

According to one aspect of the present disclosure, the spraying range of the weeding liquid can be expanded.

FIG. 1 is a diagram showing an example of a weeding system. It is a figure which shows the modification of a weeding system.

Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. In addition, in the description of the drawings, the same or equivalent elements are given the same reference numerals, and redundant description will be omitted.

[System configuration]
The weeding system 1 according to the embodiment is a system for spraying a weeding liquid to a desired location. FIG. 1 is a diagram showing an example of a weeding system 1. As shown in FIG. In this example, the weeding system 1 includes an agitator car 10 that provides a weeding liquid 40, a relay tank 20 that accommodates the weeding liquid 40 discharged from the agitator car 10, and a sprayer that sprays the weeding liquid 40 in the relay tank 20. A machine 30 is provided. A user of the weeding system 1, that is, an operator, goes to the weeding place using the agitator vehicle 10, installs a relay tank 20 to receive the weeding liquid 40 from the agitator vehicle 10, and sprays the weeding liquid 40 using a sprayer.

The agitator vehicle 10 includes a drum 11 for producing the weeding liquid 40, a hopper 12 for receiving raw materials for the weeding liquid 40, a chute 13 for discharging the weeding liquid 40 to the outside, and cleaning these parts. It is a self-propelled vehicle equipped with a water tank 14 that stores water for water. The term "agitator car" in the present disclosure refers to a vehicle equipped with a drum having an agitation function, and, in one example, refers to a concept that includes both commonly referred to agitator cars and mixer cars. The drum 11 is a large tank with a stirring function, and can rotate in both forward and reverse directions. The hopper 12 is an input port communicating with the rear end of the drum 11. The chute 13 is a flow path provided at the bottom of the hopper 12. It should be noted that the water tank 14 is used not for storing weeding liquid 40, but for storing water for washing.

The dimensions of the agitator wheel 10 may be selected taking into account the amount of weeding liquid 40. An agitator vehicle with a drum 11 capacity of 1 m ³ to 10 m ³ may also be used. For example, a small vehicle with a capacity of 2 m ³ may be used, a large vehicle with a capacity of 6 m ³ may be used, or an even larger vehicle with a capacity of 10 m ³ may be used. Good too. In one example, an agitator vehicle for producing or transporting fresh concrete may optionally function as an agitator vehicle 10 to produce and transport the weeding liquid 40.

The relay tank 20 is a tank that temporarily stores the weeding liquid 40 discharged from the drum 11. The relay tank 20 has a bottom surface and side surfaces, but does not have a top surface that covers the bottom surface. Therefore, the entire upper part of the relay tank 20 forms an opening. In the example of FIG. 1, the relay tank 20 has a cylindrical shape, but the relay tank 20 may have another shape such as a prismatic shape. The capacity of the relay tank 20 may be 0.1 m ³ to 3 m ³ or 1 m ³ to 3 m ³ . In one example, the relay tank 20 may be foldable, and may be a foldable tank formed using a resin sheet such as a plastic sheet, for example. A discharge port 21 for discharging the weeding liquid 40 is provided near the bottom of the relay tank 20 . With this discharge port 21, residual liquid that has not been sucked up by the pump can be easily discharged, and the relay tank 20 can be efficiently cleaned.

The sprayer 30 is a device for spraying the weeding liquid 40 in the relay tank 20 onto plants to be weeded. In one example, the sprayer 30 includes a pump 31 that sucks up the weeding liquid 40 in the relay tank 20, a hose 32 that passes the sucked up weeding liquid 40, and a nozzle 33 that discharges the weeding liquid 40 to the outside. The pump 31 is operated by power obtained from energy such as electricity or gasoline, and supplies the weeding liquid 40 to the nozzle 33. The discharge amount of the sprayer 30, that is, the amount of the weeding liquid 40 discharged from the nozzle 33, may be 20 L/min or more, or may be 40 L/min or more. One end of the hose 32 is connected to the pump 31 and the other end of the hose 32 is connected to the nozzle 33, thereby forming a flow path from the pump 31 to the nozzle 33. The length of the hose 32 may be, for example, 5 m or more, 10 m or more, or 30 m or more. The inner diameter of the hose 32 may be 10 to 50 mm or 15 to 40 mm. The nozzle 33 may have a structure for switching the injection method. For example, it may be possible to switch between direct injection and spraying by turning the tip of the nozzle 33, or the switching may be performed by a switch provided on the nozzle 33.

Water and herbicide, which are raw materials for the weeding liquid, are put into the hopper 12 and flow into the drum 11. In one example, when the drum 11 rotates in the forward direction, the water and herbicide are stirred and mixed, and the weeding liquid 40 is generated. In one example, the weeding liquid 40 is discharged from the drum 11 through the chute 13 by rotating the drum 11 in the opposite direction. The weeding liquid 40 discharged from the drum 11 is temporarily stored in the relay tank 20. A pump 31 is placed within the relay tank 20. When the pump 31 is activated and the nozzle 33 is operated, the weeding liquid 40 in the relay tank 20 reaches the nozzle 33 from the pump 31 via the hose 32 and is discharged from the tip of the nozzle 33 to the outside.

[How to use the system]
The user prepares an agitator vehicle 10, a relay tank 20, a sprayer 30, and a herbicide. A user puts water into the drum 11 from the hopper 12. A user drives an agitator vehicle 10 to a weeding location. The user may load the relay tank 20 and the sprayer 30 onto the agitator vehicle 10 and head to the weeding location, or may transport the relay tank 20 and the sprayer 30 to the weeding location using a separate vehicle from the agitator vehicle 10. . The user further throws a predetermined amount of herbicide into the drum 11 from the hopper 12 and rotates the drum 11 in the forward direction. Through this operation, water and herbicide are stirred within the drum 11 to produce a weeding liquid 40. The user may generate the weeding liquid 40 before heading to the weeding location or after arriving at the weeding location.

The user installs the relay tank 20 under the tip of the chute 13. Since the entire upper part of the relay tank 20 is open, the user can flexibly set the positional relationship between the chute 13 and the relay tank 20 as long as the tip of the chute 13 is located within the opening of the relay tank 20. The user rotates the drum 11 in the reverse direction, and by this operation, the weeding liquid 40 is discharged from the chute 13 and stored in the relay tank 20. The user puts the pump 31 into the relay tank 20 and operates the pump 31. The user moves the nozzle 33 to a desired location while extending the hose 32, and operates the nozzle 33 to spray the weeding liquid 40. The user may switch the spray pattern of the nozzle 33 as necessary. The amount of herbicide may be 5 L to 50 L or 10 L to 40 L per 1 m ³ of water. The amount of the weeding liquid 40 to be sprayed may be 0.05 to 5 L per 1 m ² or 0.1 to 3 L per 1 m ² .

Herbicides are chemicals used to eliminate specific plants. Examples of herbicides include non-selective herbicides, selective herbicides, bioherbicides, hydrogen peroxide, and ozonated water. Non-selective herbicides have glyphosate as a main component, for example, and exhibit herbicidal effects regardless of plant type by inhibiting the shikimate synthesis pathway (EPSPS inhibition). Selective herbicides kill broad-leaved weeds other than grass by disrupting the hormonal balance by using synthetic hormones that are less effective against grasses, for example. Examples of selective herbicides include phenoxy (MCPP). Selective herbicides may be absorbed through the leaves or stems to exert their effect. In this case, unlike herbicides that are absorbed through the roots, it is possible to kill only the weeds around the tall tree without killing the tall tree. Bioherbicides are bio-based herbicides made from specific microorganisms or insects. Bioherbicides are environmentally friendly and cost less than conventional herbicides. Bioherbicides have no negative impact on crop and human health compared to conventional herbicides.

The weeding system according to the present disclosure may be defined as follows.
(Item 1)
an agitator vehicle equipped with a drum that generates a weeding liquid with an agitation function;
a relay tank that accommodates the weeding liquid discharged from the drum;
a sprayer that sprays the weeding liquid in the relay tank;
Weeding system with.
(Item 2)
the entire upper part of the relay tank forms an opening;
The weeding system described in item 1.
(Item 3)
The relay tank is a collapsible tank formed using a resin sheet.
The weeding system according to item 1 or 2.
(Item 4)
The capacity of the drum is 1 m ³ to 10 m ³ ,
The capacity of the relay tank is 1 m ³ to 3 m ³ .
The weeding system according to any one of items 1 to 3.
(Item 5)
The spreader is
a pump that sucks up the weeding liquid in the relay tank;
a nozzle that discharges the sucked up weeding liquid;
a hose connecting the pump and the nozzle;
The length of the hose is 5 m or more,
The weeding system according to any one of items 1 to 4.
(Item 6)
The discharge amount of the spreader is 20 L/min or more,
The weeding system according to any one of items 1 to 5.
(Item 7)
the agitator vehicle is a vehicle used for transporting ready-mixed concrete;
The weeding system according to any one of items 1 to 6.

According to item 1, the weeding liquid produced in the drum of the agitator vehicle is temporarily transferred to the relay tank, and the weeding liquid in the relay tank is sprayed by the sprayer. By combining an agitator vehicle, a relay tank, and a sprayer when spraying weeding liquid, it is possible to spray the weeding liquid even in areas where vehicles cannot enter. As a result, the spraying range of the weeding liquid can be expanded. For example, weeding work can be carried out in various locations related to civil engineering, construction, and agriculture, even if there is no water source nearby. Further, since the weeding liquid is generated by the stirring function of the drum, the labor required for preparing the weeding liquid can be reduced, and the weeding liquid can be easily sprayed by using a relay tank and a sprayer. Therefore, it becomes possible to realize labor saving and rationalization of large-scale weeding work.

It is also possible to directly suck up the weeding liquid from a pump inserted into the drum of the agitator vehicle without using a relay tank, but in this case, it is not possible to improve the efficiency of the spraying operation. Also, if the drum is rotated with the pump inside the drum, the drum or pump may be damaged.

According to item 2, since the upper part of the relay tank that receives the weeding liquid discharged from the drum is not covered, it becomes easy to position the relay tank with respect to the agitator vehicle. For example, the relay tank can be easily positioned relative to the tip of the chute of the agitator vehicle.

According to item 3, since a lightweight and foldable relay tank is provided, the relay tank can be easily carried. For example, a relay tank can be carried on an agitator vehicle.

According to item 4, the agitator vehicle and relay tank are provided in accordance with the anticipated required amount of weeding liquid, so the convenience of the weeding system can be improved.

According to item 5, since the length of the hose is 5 m or more, the weeding liquid can be sprayed even in areas relatively far away from the agitator vehicle and the relay tank. Therefore, the weeding liquid can be sprayed more flexibly in various locations.

According to item 6, since the discharge rate of the sprayer is high, the weeding liquid can be more easily sprayed over a wide area.

According to item 7, an agitator vehicle transporting fresh concrete is used for the weeding system. Thus, for example, a ready-mix concrete contractor can be offered the opportunity to use an agitator vehicle for weeding services. The ready-mixed concrete contractor will be able to improve the operating efficiency of his agitator vehicles and earn more sales by providing weeding services as a side business.

Examples will be specifically described below, but the present disclosure is not limited thereto.

Using the weeding system corresponding to the above embodiment, three types of slopes, each with an area of 1000 m ² , 2000 m ² , and 5000 m ² , were weeded as Examples 1 to 3, respectively. In these examples, the drum of the agitator vehicle contained water and was transported to the weeding site. At the weeding site, glyphosate herbicide was poured into the drum of an agitator vehicle at a ratio of 30 L to 1 m ³ of water, and the drum was agitated to produce a weeding solution. Thereafter, the weeding liquid was transferred to a relay tank, and a sprayer with a discharge rate of 20L/min, a hose with an inner diameter of 25mm, and a hose length of 5m was used to spray the weeding liquid onto the slope at a rate of 1L per ¹ m2. was scattered. The nozzle used was capable of switching between direct injection and injection, and was capable of discharging the weeding liquid up to 3 meters from the discharge port. In Examples 1 and 2, an agitator car with a drum capacity of 2 m ³ was used, and in Example 3, an agitator car with a drum capacity of 6 m ³ was used.

As comparative examples, weeding work using a mower (conventional method 1) and weeding work using a small backpack-type sprinkler with a capacity of 20 L to spray weeding liquid (conventional method 2) were carried out. Both conventional methods 1 and 2 were conducted on three types of slopes with areas of 1000 m ² , 2000 m ² , and 5000 m ² . In conventional method 2, the glyphosate herbicide was added at a rate of 30 L to 1 m ³ of water, and the herbicide was sprayed at a rate of 1 L per 1 m ² , similar to the example.

Table 1 shows the number of man-hours (man-days) required for weeding work and the weeding effect (period) representing the duration of the effect of the weeding liquid in each Example and each Comparative Example. As can be seen from Table 1, the example exhibited a high weeding effect while significantly reducing the number of man-hours compared to any of the comparative examples.

[Modified example]
The present disclosure has been described above in detail based on the embodiments thereof. However, the present disclosure is not limited to the above embodiments. The present disclosure can be modified in various ways without departing from the gist thereof.

FIG. 2 is a diagram showing a modification of the weeding system. In this example, the relay tank 50 temporarily stores the weeding liquid discharged from the drum of the agitator vehicle, and the sprayer 60 sprays the weeding liquid in the relay tank 50. The relay tank 50 has a bottom surface, side surfaces, and a top surface, and has a lid that can be opened and closed approximately in the center of the top surface. The weeding liquid discharged from the drum of the agitator vehicle flows into the relay tank 50 through the opening exposed when the lid is opened. Similar to the relay tank 20, a discharge port 51 for discharging the remaining weeding liquid is provided near the bottom of the relay tank 50. The relay tank 50 may be made of resin such as plastic. The sprayer 60 includes a pump 61 that sucks up the weeding liquid in the relay tank 50, a hose 62 that passes the sucked up weeding liquid, and a nozzle 63 that discharges the weeding liquid to the outside. The discharge amount of the spreader 60 may be selected similarly to the spreader 30. The length of hose 62 may be selected similarly to hose 32. Like the nozzle 33, the nozzle 63 may have a structure for switching the injection method.

Although in the above example the weeding liquid is produced in the drum of the agitator vehicle, the weeding solution may also be produced in a relay tank. In this example, the user stirs the water and herbicide in the relay tank either by themselves or with a stirrer to produce the weeding solution. In this case, water is loaded in the drum of the agitator car and water is transferred from the drum to the relay tank.

1... Weeding system, 10... Agitator car, 11... Drum, 12... Hopper, 13... Chute, 14... Water tank, 20, 50... Relay tank, 30, 60... Spreader, 31, 61... Pump, 32, 62 ...Hose, 33, 63... Nozzle, 40... Weeding liquid, 21, 51... Outlet.

Claims (7)

an agitator vehicle equipped with a drum that generates a weeding liquid with an agitation function;
a relay tank that accommodates the weeding liquid discharged from the drum;
a sprayer that sprays the weeding liquid in the relay tank;
Weeding system equipped with. the entire upper part of the relay tank forms an opening;
The weeding system according to claim 1. The relay tank is a collapsible tank formed using a resin sheet.
The weeding system according to claim 1 or 2. The capacity of the drum is 1 m ³ to 10 m ³ ,
The capacity of the relay tank is 1 m ³ to 3 m ³ .
The weeding system according to claim 1 or 2. The spreader is
a pump that sucks up the weeding liquid in the relay tank;
a nozzle that discharges the sucked up weeding liquid;
a hose connecting the pump and the nozzle;
The length of the hose is 5 m or more,
The weeding system according to claim 1 or 2. The discharge amount of the spreader is 20 L/min or more,
The weeding system according to claim 5. the agitator vehicle is a vehicle used for transporting ready-mixed concrete;
The weeding system according to claim 1 or 2.

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