JPH04134461U - Self-propelled sprayer - Google Patents

Abstract

(57) [Summary] [Purpose] The unmanned self-propelled spray vehicle 10 traveling along the furrow path 16
The chemical solution is efficiently sprayed onto the crops 18 in response to the presence and height of the crops 18, thereby preventing wastage of the chemical solution. [Structure] A plurality of spraying means 12 are allocated and arranged for each spraying site, and the presence or absence of crops 18 at each spraying site is detected by an ultrasonic sensor 66. The chemical solution is supplied to each dispersing means 12 through individual pipes 70, and each pipe 70 can be opened and closed by an on-off valve 72. The on-off valve 72 of the spraying site where no crop 18 has been detected closes the pipe 70, thereby stopping the spraying of the chemical solution from the spraying means 12 at that spraying site.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This idea is to spray liquid onto crops, etc. by self-propelling along paths between furrows in greenhouses, etc. Regarding self-propelled spray vehicles that spray It concerns a spray vehicle.

0002

[Conventional technology]

Utility Model Publication No. 1-73365 discloses a system that travels along a path between furrows and sprays a chemical solution onto crops on the furrows. Discloses a self-propelled spraying vehicle. This self-propelled spreading vehicle maintains a constant flow rate while traveling along the furrow path. The chemical liquid is constantly spouted to the left and right.

0003 On the other hand, Japanese Patent Application Laid-Open No. 3-16672 discloses a track-type sprayer system that Discloses controlling the spraying flow rate of a chemical solution according to the amount of growth.

0004

[Problem that the idea aims to solve]

Crops are not continuous on the rows without gaps, there are gaps between crops (missing plants), or the rows are separated from side to side. Only one side exists (one side vacant lot or the side wall of the house) There is. Additionally, even if crops exist, their height and branching may vary. Ru. Conventional self-propelled sprayers are difficult to use when there are missing plants, vacant land, etc., or when the height of crops is low. The chemical solution can also be sprayed when there is no part of the crop within the spraying height from the spraying means. Therefore, there is a lot of waste of chemical solution.

[0005] The purpose of this invention is to spray each spray area (including the spray direction) while driving for spraying. Spraying can be achieved by starting and stopping the spraying liquid as appropriate depending on the presence of the target to be sprayed. It is an object of the present invention to provide a self-propelled spraying vehicle capable of preventing wasteful spraying of liquid.

[0006]

[Means to solve the problem] This invention will be explained using reference numerals in the drawings that correspond to the embodiments. The self-propelled spraying vehicle (10) which is the premise of claim 1 is self-propelled on the running path (16) and spreads over the surrounding area. Spray the spray liquid toward the spray target (18). And the self-propelled scattering vehicle of this invention (10) has the following components (a) to (c). (a) Multiple sprayers allocated and arranged for each spraying area where the spray liquid is to be sprayed. means(12) (b) Spray target detector (66) that detects the presence of the spray target (18) for each spray area (c) Operates based on the detection of this spray target detector (66) and detects the presence of the spray target (18). An on-off valve (72) that stops the supply of the spray liquid to the spray means (12) corresponding to the spray area that is not sprayed.

[0007]

[Effect]

The spray target detector (66) detects the presence or absence of the spray target (18) at each spray site. . In the spraying area where the target to be sprayed (18) exists, the on-off valve (72) corresponding to the spraying area is opened, the spraying liquid is supplied to the spraying means (12), and the target (18) at the spraying site is sprayed. be scattered towards. In addition, in the sprayed area where there is no target to be sprayed (18), The on-off valve (72) corresponding to the spraying area is closed, and the supply of spray liquid to the spraying means (12) is interrupted. and the spraying of the spray liquid from the spraying means (12) is stopped.

[0008]

【Example】

This invention will be described below with reference to embodiments shown in the drawings. Figure 2 shows the running state of the unmanned self-propelled spray vehicle 10 from the side, as well as other equipment. Figure 3 is a perspective view showing the unmanned self-propelled spray vehicle 10 and other equipment together with the field. be. In FIGS. 2 and 3, an unmanned self-propelled spreading vehicle 10 is equipped with a plurality of spreading means 12. , it moves forward and backward through the furrow passage 16 between the ridges 14 by rotating the front, rear, left and right tires 22. 14 ridges Crops 18 are planted on top, and the lower part of the stake 20 is buried at the tip side of each furrow passage 16. Standing up. The touch sensor 23 is arranged at the front lower part of the unmanned self-propelled spraying vehicle 10, and 20. The power sprayer 24 is installed in the furrow passage along with the chemical solution tank 26. It is placed on the opposite side of the pile 20 in the direction of extension of the chemical tank 26, and is stored in the chemical tank 26. The chemical solution is inhaled and fed under pressure to the unmanned self-propelled spray vehicle 10 via the hose 28. Ho The ground hook 30 has its lower part inserted into the ground near the end of the furrow passage 16, A hose 28 can be hung at the upper hook part.

[0009] FIG. 4 is a plan view of the power transmission system of the unmanned self-propelled spray vehicle 10. Direct current motor that can be rotated forward or backward The motor 32 is driven by electric power from the battery 34, and the rotational power of the DC motor 32 is generated by the sprocket. It is transmitted to the intermediate shaft 42 via the nut 36, chain 38 and sprocket 40. intermediate shaft The rotational power of 42 is, on the one hand, sprocket 44, chain 46, sprocket 48 and It is transmitted through the axle 50 to the tires 22 at both ends of the axle 50, and on the other hand, the sprocket 52, the tires 22 at both ends of the axle 58 through the chain 54, sprocket 56 and axle 58 transmitted to. The control circuit 60 operates based on input signals such as ON and OFF of the touch sensor 23. controls the rotation direction of the DC motor 32, etc., and controls the running of the unmanned self-propelled spray vehicle 10. , until the touch sensor 23 comes into contact with the stake 20 (Figs. 2 and 3), the DC motor 32 is operated normally. The unmanned self-propelled spreading vehicle 10 is moved forward in the furrow passage 16, and the touch sensor 23 is activated. When it comes into contact with the pile 20, the DC motor 32 is reversed and the unmanned self-propelled spreading vehicle 10 is moved to the furrow passage 16. Move the vehicle backwards.

0010 FIG. 1 is a detailed front view of the unmanned self-propelled spray vehicle 10. The unmanned self-propelled spraying vehicles 10 are installed on the left and right sides. Equipped with three spraying means 12, each spraying means 12 has a nozzle pipe 62 extending in the vertical direction. , a plurality of horizontally outwardly mounted nozzle pipes 62 at equal intervals. The nozzle pipes 62 of the spraying means 12 on each side are arranged in a straight line. They are lined up. The ultrasonic sensor 66 is arranged in the same direction as the nozzle 64 in each spraying means 12. The spraying means 12 is installed in the center of the nozzle pipe 62 and is responsible for the spraying. Detecting the presence of crops 18 in a site based on the reception of emitted ultrasonic waves; The signal is sent to control circuit 60 (FIG. 4). The distributor 68 is connected to the nozzle 64 of each spreading means 12. Each sprayer is connected to a separate pipe line 70, and the chemical liquid is pumped from the power sprayer 24. Distribute to means 12. Each pipe line 70 is provided with an on-off valve 72, and each on-off valve 72 is connected to the control circuit 60. The conduit 70 is opened and closed by a control signal from the control signal.

[0011] The operation of the embodiment will be explained. The unmanned self-propelled spreading vehicle 10 is driven by a DC motor 32. The tire 22 is rotated to move back and forth along the furrow passage 16. The chemical liquid in the chemical liquid tank 26 is , is inhaled by the power sprayer 24 and sent to the distributor 68 of the unmanned self-propelled spray vehicle 10 via the hose 28. is pumped to. Ultrasonic sensors in each spraying means 12 while the unmanned self-propelled spraying vehicle 10 is running 66 detects the presence or absence of crops 18 at the spraying site to which the spraying means 12 is assigned. put out The control circuit 60 controls the corresponding opening based on the input from each ultrasonic sensor 66. The closing valve 72 is controlled, and the opening/closing valve 72 of the spraying area where the crop 18 is present is opened and the medicine is not released. The liquid is sent from the distributor 68 via the conduit 70 to the nozzle pipe 62 of the spraying means 12, and is The chemical solution is ejected from the nozzle 64 toward the crop 18 within the spraying area, and The on-off valve 72 of the spraying area where the object 18 is not present is closed, and the nozzle from the distributor 68 is closed. The supply of chemical liquid to the pipe 62 is stopped, and the dispersing means 12 corresponding to the on-off valve 72 in the closed state Then, the ejection of the chemical liquid from the nozzle 64 is stopped. As a result, for example, (a) unmanned In the area of missing plants with respect to the traveling direction of the self-propelled spreading vehicle 10, all spreading means on the spreading side The spraying of the chemical liquid from the nozzle 64 of No. 12 is temporarily stopped, and (b) the unmanned self-propelled spray vehicle 10 Crop 18 exists only on one side in the direction of travel of the unmanned self-propelled spray vehicle 10, During this period, the spraying of the chemical solution from the nozzles 64 of all the spraying means 12 on the other side is continuously stopped. (c) Crops18 exist, but are not dispersed due to low growth or peculiar branching patterns. In the case where there is no part of the crop 18 at the spraying site to which the cloth means 12 is assigned, The spraying of the chemical solution only from the nozzle 64 of the spraying means 12 is temporarily stopped.

0012 In the unmanned self-propelled spraying vehicle 10 of the illustrated embodiment, a chemical solution is sprayed, but other than the chemical solution, water and It is also possible to spray a spray liquid such as fertilizer. In the illustrated embodiment, the dispersion means 12 are arranged vertically only on the left and right sides. However, it can also be arranged upwardly or at other inclined angles.

[0013]

[Effect of the idea]

This idea involves driving along a road and spraying the spray liquid toward surrounding targets. In a self-propelled spraying vehicle, multiple spraying means are allocated to each spraying area. The target detector detects the presence of the target to be sprayed at each spray location, and then The valve is opened and closed based on the detection value of the spray target detector. Therefore, missing stock, one side Depending on the condition of the target to be sprayed, such as vacant land, crop height and branching, etc. Spraying of the spray liquid is carried out and stopped in order to ensure that the spray liquid is applied to the required area. At the same time, do not spray the spray liquid on areas that do not require spraying, and avoid unnecessary consumption of the spray liquid. can be prevented.

[Submission date] July 11, 1991

[Procedural amendment 1]

[Name of document to be amended] Specification

[Correction target item name] 0011

[Correction method] Change

[Correction details]

[0011] The operation of the embodiment will be explained. The unmanned self-propelled spreading vehicle 10 rotates the tires 22 by driving the DC motor 32 and moves back and forth in the furrow passage 16. The chemical liquid in the chemical liquid tank 26 is sucked by the power sprayer 24 and is force-fed to the distributor 68 of the unmanned self-propelled spray vehicle 10 via the hose 28. While the unmanned self-propelled spray vehicle 10 is traveling, the ultrasonic sensor 66 in each spraying means 12 detects the presence or absence of the crop 18 at the spraying site to which the spraying means 12 is assigned. The control circuit 60 controls the corresponding on-off valve 72 based on the input from each ultrasonic sensor 66, and the on-off valve 72 at the spraying site where the crop 18 is present is opened so that the chemical solution is not transmitted from the distributor 68. The chemical liquid is sent to the nozzle pipe 62 of the spraying means 12 via the pipe line 70, and is ejected from a plurality of nozzles 64 toward the part of the crop 18 within the spraying site, and also sprays the chemical solution toward the part of the crop 18 in the spraying site where there is no part of the crop 18. The on-off valve 72 is closed, and the supply of the chemical liquid from the distributor 68 to the nozzle pipe 62 is stopped, and the spraying means 12 corresponding to the on-off valve 72 in the closed state stops ejecting the chemical liquid from the nozzle 64. be done. As a result, for example, (a) the spraying of the chemical solution from the nozzles 64 of all the spraying means 12 on the spraying side is temporarily stopped in the range of missing plants in the traveling direction of the unmanned self-propelled spraying vehicle 10, and (b) ) When the crops 18 are present only on one side in the direction of movement of the unmanned self-propelled spraying vehicle 10, such as when the unmanned self-propelled spraying vehicle 10 travels on a ridge in open field cultivation or along a path near the side wall of a greenhouse. Then, during the travel, the spraying of the chemical solution from the nozzles 64 of all the spraying means 12 on the other side is continuously stopped, and (c) although the crops 18 are present, they are low or due to the peculiarity of branching. If there is no part of the crop 18 in the spraying area to which the spraying means 12 is assigned, the spraying of the chemical solution only from the nozzle 64 of the spraying means 12 is temporarily stopped.

[Procedural amendment 2]

[Name of document to be amended] Specification

[Correction target item name] 0013

[Correction method] Change

[Correction details]

[0013]

[Effect of the idea]

In this invention, in a self-propelled spraying vehicle that travels along a road and sprays spray liquid toward surrounding targets, multiple spraying means are assigned to each spraying area and are installed to detect targets to be sprayed. The presence of the target to be sprayed is detected for each spraying area by the detector, and the on-off valve is opened and closed based on the detection value of the target to be sprayed detector. Therefore, depending on the condition of the target to be sprayed, such as missing plants, vacant land on one side, crop height, branching, etc., spraying of the spray liquid is carried out or stopped using each spraying method, ensuring that the spray liquid is distributed to the necessary spraying area. At the same time, since the spray liquid is not sprayed to areas where spraying is unnecessary, wasteful consumption of the spray liquid can be prevented.

[Brief explanation of drawings]

FIG. 1 is a detailed front view of an unmanned self-propelled spraying vehicle.

FIG. 2 is a diagram showing the running state of the unmanned self-propelled spraying vehicle from the side, and also showing other equipment.

FIG. 3 is a perspective view showing an unmanned self-propelled scattering vehicle and other equipment together with a field.

FIG. 4 is a plan view of the power transmission system of the unmanned self-propelled spray vehicle.

[Explanation of symbols]

10 Unmanned self-propelled spraying vehicle (self-propelled spraying vehicle) 12 Spreading means 16 Furrow passageway (driving path) 18 Crops (target for spraying) 66 Ultrasonic sensor (dispersed target detector) 72 On-off valve

Claims (1)

[Scope of utility model registration request] Claim 1: In a self-propelled spraying vehicle (10) that sprays a spraying liquid toward surrounding objects to be sprayed (18) while traveling on a traveling path (16), each spraying site where the spraying liquid is sprayed is provided. a plurality of spraying means (12) allocated and disposed in the area, a spraying target detector (66) for detecting the presence of the spraying target (18) for each spraying part, and a spraying target detector (66) for detecting the presence of the spraying target (18) for each spraying part; and an on-off valve (72) that operates based on the detection of the spraying device (66) and stops supplying the spraying liquid to the spraying means (12) corresponding to the spraying area where the target to be sprayed (18) does not exist. A self-propelled spraying vehicle that is characterized by the ability to