JP6488435B2 - Herbicide sprayer - Google Patents

Description

The present invention relates to a herbicide spraying vehicle capable of adjusting a spraying range, height, and spraying amount.

Asphalt pavement roads, asphalt 1 expands and contracts due to temperature, as shown in FIG. 11, a gap is gradually formed between roadway 2 and curb 4 of sidewalk 3, grass 5 grows here, and if this grows high, traffic of It becomes an obstacle. Grass 5 also grows between the sidewalk 3 and the curb 4 and between the median strip 7. Conventionally, mowing is done manually using an engine mower.

However, the manual mowing work is inefficient, heavy labor, and particularly troublesome in the place where the guardrail 8 is installed. In addition, it requires a transportation process of the cut grass 5, which is costly. was there.

For this reason, it has been proposed to spray the herbicide using mechanical force regardless of human power. For example, a herbicide sprayer connected to the herbicide tank is installed at the front of the driver, and the herbicide floating in the mist without spraying on the unnecessary plants by spraying the herbicide is attached to the herbicide There has been proposed a herbicide spreader (Patent Document 1) provided with a device that sucks in a recovery port provided in a chamber and returns it to a storage tank.

This herbicide spreader has the advantage of collecting and storing the herbicide sprayed more than necessary, but the herbicide spreader has wheels that come in contact with the ground, has no lifting device, and moves left and right However, there is a drawback that the drive body cannot be moved unless it is attached to a tire excavator.

In addition, a frame is provided on the truck bed, the nozzle arm is attached to the left and right to be moved, and a rotatable nozzle is provided at the lower end of the nozzle arm. The herbicide is provided from the nozzle opening provided here. Has been proposed (Patent Document 2) that injects in a line shape in a direction perpendicular to the traveling direction of the road surface.

In this device, the nozzle part is pivotably mounted, and the spraying range of the herbicide is determined by adjusting the pivot angle, but the amount of spray cannot be adjusted, and the height of the lowermost nozzle port is constant. However, there was a problem that the grass growing along the curb could not be efficiently weeded.

JP 2011-250777 A Utility Model Registration No. 3170484

The present invention improves the above problems, can open and close the injection nozzle arbitrarily, can adjust the range of spraying herbicide along the curb of the road to the minimum, it can be sprayed efficiently, and the traveling direction of the vehicle body It provides a herbicide sprayer that can spray herbicides from either the left or right without changing it, especially in places where guardrails or traffic sign poles are standing, and at low cost. .

The herbicide spray vehicle according to claim 1 of the present invention includes a herbicide tank mounted on a traveling vehicle, a pump connected to the tank, a branch joint connected to a discharge pipe of the pump, and a plurality of joints connected to the branch joint. A hose, an open / close valve provided between the hoses, an elevating mechanism provided on the front surface of the main body frame of the traveling vehicle, an elevating plate attached to the elevating mechanism, and a horizontal surface on the front surface of the elevating plate Two horizontal movement mechanisms attached in the direction, a rear lateral movement frame attached to one horizontal movement mechanism, a first injection nozzle attachment plate attached to the rear lateral movement frame, and a front surface of the main body frame. The first column that is erected, the plurality of hoses drawn from the upper part of the first column to the lower side, and the tip of the hose are connected to each other via the first injection nozzle mounting plate. Spacing horizontally The injection nozzle attached to the other horizontal movement mechanism, the front lateral movement frame attached to the other horizontal movement mechanism, the second injection nozzle attachment plate attached to the front horizontal movement frame, and the upper horizontal movement mechanism. The two struts, the plurality of hoses attached from the top to the bottom of the second strut, and the ends of the hoses are connected to each other, and are spaced laterally through the second injection nozzle attachment plate. And after the elevating mechanism is driven to set the elevating plate to a predetermined height, one horizontal movement mechanism is driven to move the rear lateral movement frame attached here to the left and right. Spray the herbicide from any spray nozzle through the hose connected to the open on-off valve, and drive the other horizontal movement mechanism to move the front lateral frame attached here to the left and right to open Shi The herbicide is jetted from an arbitrary jet nozzle through a hose connected to the open / close valve.

The herbicide spray vehicle according to claim 2 of the present invention is the vehicle according to claim 1, wherein the lifting mechanism provided on the front surface of the main body frame is provided with racks in the vertical direction on both the left and right sides of the main body frame, and the rack on the lifting plate side. Consists of a pinion gear with a meshing lifting motor, and a two-level horizontal movement mechanism mounted horizontally on the front surface of the lifting plate, a rack mounted horizontally on the lifting plate side, and a front and rear lateral frame And a motor equipped with a pinion gear meshing with a rack attached to the side.

According to a third aspect of the present invention, there is provided a herbicide spray vehicle according to the first or second aspect of the present invention, wherein the first support column erected on the front surface of the main body frame is provided with a wire that moves up and down following the rear lateral movement frame. The middle of the wire and a plurality of bundled hoses are connected to move the hose up and down as the wire moves.

According to a fourth aspect of the present invention, there is provided a herbicide spray vehicle according to the first or second aspect of the present invention, a lower horizontal movement mechanism that is driven horizontally in a lower direction of a main body frame of the traveling vehicle, Arranged from a third injection nozzle mounting plate provided in the horizontal movement mechanism and an injection nozzle mounted on the third injection nozzle mounting plate at a lateral interval, optionally through a hose connected to an open on-off valve The herbicide is sprayed from the spray nozzle.

According to a fifth aspect of the present invention, there is provided the herbicide spray vehicle according to the fourth aspect, wherein the horizontal movement mechanism attached horizontally to the lower part of the main body frame is an electric cylinder attached to the main body frame side, and the tip of the piston of the cylinder. Is connected to the injection nozzle mounting plate.

According to the herbicide spray vehicle according to the first aspect of the present invention, the first injection nozzle mounting plate and the second injection nozzle mounting plate are provided so as to be movable up and down and left and right, and a plurality of injection nozzles are arranged in the horizontal direction. Installed at intervals in the direction, and an open / close valve is installed in the middle of the multiple hoses connected to this spray nozzle, and it is supplied individually only to the spray nozzle necessary for spraying the herbicide, so one or both sides of the curb, Costs are low because herbicide can be sprayed to a minimum in places with guardrails and poles, and grass can not grow or grow. Further, since the injection nozzle mounting plate can be moved left and right, it can be sprayed on both sides of the road along the traveling direction of the vehicle without reversing the traveling vehicle.

Further, according to the herbicide spraying vehicle of claim 2, the lifting mechanism and the two-stage horizontal moving mechanism are composed of a rack and a pinion gear and are driven by a motor, so that the structure is simpler and lighter than hydraulic pressure. Can be manufactured at low cost.

Further, according to the herbicide spray vehicle according to claim 3, the first support column is provided with a wire that moves up and down following the lateral movement frame, and the middle of the wire is connected to a plurality of bundled hoses. Since the hose is moved up and down with the movement of the wire, it is possible to prevent the hose 35 of the second injection nozzle mounting plate on the front and the hose of the first injection nozzle mounting plate on the rear from being entangled.

According to the herbicide spray vehicle of claim 4, the lower horizontal movement mechanism that is driven horizontally in the lower part of the main body frame of the traveling vehicle, and the third injection nozzle mounting plate is provided in the lower horizontal movement mechanism. Therefore, the herbicide can be efficiently injected from an arbitrary injection nozzle to the boundary between the roadway and the curb.

According to the herbicide spraying vehicle of the fifth aspect, the lower horizontal movement mechanism attached in the horizontal direction to the lower part of the main body frame moves left and right by the electric cylinder, so that the structure is simple.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. In the figure, reference numeral 10 denotes a herbicide spray vehicle. A crawler 11 serving as a traveling vehicle is driven by an engine 12, a main body frame 13 is attached to the crawler 11, and a herbicide tank 14 is mounted thereon. A pump 15 is connected to the agent tank 14. An elevating mechanism 16 is provided on the front surface of the main body frame 13, and an elevating plate 17 is attached to the elevating mechanism 17 so as to be movable up and down.

As shown in FIG. 2, an upper horizontal moving mechanism 18 and a lower horizontal moving mechanism 19 are provided in two levels in the horizontal direction on the front surface of the elevating plate 17, and the lower horizontal moving mechanism 19 has a rear lateral frame. 20 is attached so that it can move horizontally from side to side. A first hollow column 21 formed of a square tube is erected on the right side of the front surface of the main body frame 13 in the drawing. Further, a first injection nozzle mounting plate 22 formed of a channel material as shown in FIG. 1 is attached to the lower part of the rear lateral movement frame 20, and four injection nozzles are laterally spaced inside this. 23 is attached.

Further, as shown in FIG. 2, the upper horizontal moving mechanism 18 has a second hollow strut 26 integrally connected to the front lateral movement frame 25, and a second injection nozzle mounting plate 28 connected to the lower part thereof, so that the front horizontal The second hollow column 26 and the second injection nozzle mounting plate 28 are moved with the movement of the moving frame 25 from side to side.

Further, as shown in FIG. 1, a third spray nozzle mounting plate 30 formed of a channel material is horizontally disposed below the main body frame 13 in front of the first spray nozzle mounting plate 22 via a lower horizontal movement mechanism 29. Four spray nozzles 23 are mounted on the inner side of the nozzle nozzle 23 so as to be movable.

More specifically, the pump 15 connected to the herbicide tank 14 is connected to a branch joint 32 whose discharge pipe 31 branches into two branches as shown in FIG. Connected to the joint 33, a hose 35 is connected to each. Further, the middle of these hoses 35 is connected to an open / close valve 41 attached to the control panel 40 as shown in FIG. 5, and the open / close valve 41 is opened and closed by rotating the lever 42.

As shown in FIG. 3, four of these hoses 35 are led through the opening in the upper part of the main body frame 13 to the upper parts of the first hollow strut 21 and the second hollow strut 26. The mounting plate 22 is connected to the spray nozzle 23 of the second spray nozzle mounting plate 28. Further, two hoses 35 drawn out from the left and right side plates through the inside of the main body frame 13 are respectively connected to four injection nozzles 23 attached to the third injection nozzle attachment plate 30.

Also, a cover 36 is attached to each of the first spray nozzle mounting plate 22, the second spray nozzle mounting plate 28, and the third spray nozzle mounting plate 30 so that the sprayed herbicide is not scattered around. Yes.

Further, as shown in FIG. 6, the elevating plate 17 attached to the front surface of the main body frame 13 via the elevating mechanism 16 is attached to a vertical rack 45 attached thereto and a motor 46 connected to the elevating plate 17 side. The pinion gear 47 meshes with the pinion gear 47 and moves up and down.

The upper horizontal moving mechanism 18 provided on the front surface of the elevating plate 17 is meshed with a rack 50 provided horizontally on the elevating plate 17 side and a pinion gear 52 attached to a motor 51 provided on the front side moving frame 25 side. To move left and right. 53 is a guide rail provided horizontally. Further, as shown in FIG. 2, the lower horizontal moving mechanism 19 has a rack 50 horizontally provided on the lifting plate 17 side and a pinion gear 52 attached to a motor 51 provided on the rear lateral frame 20 side meshes with the left and right sides. To move to.

Further, as shown in FIG. 7, a pulley P1 is provided on the front end side plate of the main body frame 13, and pulleys P2, P3, and P4 are provided at the lower open portion of the first hollow column 21, the upper portion, and the lower portion of the back surface thereof. Installed. One end of the wire 56 is connected to the rear lateral movement frame 20 to which a pinion gear 52 driven by a motor 51 is attached, and is connected to a bracket 55 on the right side of the first injection nozzle attachment plate 22 via pulleys P1 to P4. When the rear stage lateral movement frame 20 moves to the left in the figure, the first injection nozzle mounting plate 22 connected thereto also moves. At this time, both ends of the wire 56 are connected to the rear stage lateral movement frame 20 and the first injection nozzle attachment plate. Since it is connected to 22 brackets 55, it moves in the direction of the arrow.

As shown in FIG. 8, the inside of the first hollow column 21 is connected to the wire 56, the four hoses 35 and the cable 59 of the motor 51 protected by the hoses 57, and the four hoses 35 and 1. The hose 57 is moved up and down integrally with the wire 56, and is smoothly drawn from the upper part of the first hollow column as the wire 56 moves, and is smoothly drawn from the lower part.

Further, as shown in FIG. 9, the second hollow support column 26 is formed by a rectangular tube having an open top and bottom, and is erected on the front right end of the front side moving frame 25 attached to the upper horizontal moving mechanism 18. Inside the second hollow column 26, a cable 59 for driving the motor 51 of the front lateral movement frame 25 protected by the four hoses 35 and the hose 57 is inserted, and left and right of the horizontal movement mechanism 18 on the upper stage are inserted. Along with the movement, the second hollow column 26 also moves left and right. No wire is provided inside the second hollow column 26 and the hoses 35 and 37 do not move up and down.

Further, the bottom of the second hollow column 26 is integrally connected to the left side of the second injection nozzle mounting plate 28 in the drawing so that the second hollow column 26 moves to the left and right as the front-side lateral movement frame 25 moves. It has become. Reference numeral 58 denotes a guide shaft that moves the first injection nozzle mounting plate 22 and the second injection nozzle mounting plate 28 while holding them horizontally.

Further, as shown in FIG. 11, a horizontal movement mechanism 29 in the lower part provided with the four injection nozzles 23 provided at the lower part of the main body frame 13 for spraying the herbicide 66 on the boundary between the curb 4 and the asphalt 1 of the roadway 2 The tip of the piston 61 of the electric cylinder 60 mounted horizontally on the main body frame side is connected to the third injection nozzle mounting plate 30 via a bracket 74 penetrating a long hole 62 opened in the bottom surface of the main body frame 13. ing. Further, two long holes 63 are formed on the left and right of the long hole 62 on the bottom surface, and a nut 64 protruding from the upper part of the third injection nozzle mounting plate 30 is passed through the long hole 63 so that the bottom surface of the main body frame 13 is formed. Is to slide left and right.

In a state in which the piston 61 is contracted, the third injection nozzle mounting plate 30 is always in a state of protruding to the right side in the drawing indicated by the imaginary line of the main body frame 13. When the piston 61 is extended, the third injection nozzle mounting plate 30 extends to the curb 4 side, that is, the left side in the drawing.

In FIG. 2, 67 is a pulley for guiding the hoses 35 and 57 inserted into the first hollow column 21, and 68 is a pulley for guiding 35 and 37 inserted into the second hollow column 26. Reference numeral 69 denotes a water level meter provided in the herbicide tank 14, and 70 denotes a joint for supplying the herbicide 66 to the herbicide tank 14 and returning the surplus herbicide to the herbicide tank 14. In FIG. 3, 69 is a manual sprayer having an injection nozzle 23 attached to the tip of a pipe, 71 is a battery, 72 is driving an upper horizontal moving mechanism 18, a lower horizontal moving mechanism 19, and a lower horizontal moving mechanism 29. It is an operation panel.

The case where the herbicide 67 is sprayed on the grass 5 which grows between the curb 4 of the roadway 2 and the asphalt 1 in the herbicide spray vehicle having the above configuration will be described. First, the operation panel 72 is operated to extend the piston 61 of the electric cylinder 60 as shown in FIG. 10 and bring the third injection nozzle mounting plate 30 closer to the curbstone 4 side. Next, the pump 15 is driven to rotate the lever 42 of the control panel 40 for supplying the herbicide 66 to the two injection nozzles 23 on the curb 4 side attached to the third injection nozzle attachment plate 30, thereby opening and closing the valve. When 41 is opened, the herbicide 66 is supplied from the herbicide tank 14 to the two spray nozzles 23 through the hose 35 by the pump 15, from which the herbicide 66 is sprayed between the curb 4 and the asphalt 1. In this way, the crawler 11 is run while spraying the herbicide 66, and the spraying operation is continuously performed.

Further, when spraying on the side of the median strip 7, the crawler 11 is brought close to the curb 4 on the side of the median strip 7, and the piston 61 is contracted by the lower horizontal movement mechanism 29 to separate the third injection nozzle mounting plate 30 from the center. Approach the curb 4 on the band 7 side. Next, when the lever 42 of the control panel 40 is rotated and the opening / closing valve 41 is opened, the herbicide 66 is supplied to the two injection nozzles 23 on the right side in the figure, from which the herbicide 66 is sprayed to the central separation band 7 side. Is done. Thus, by operating the lower horizontal movement mechanism 29, the crawler 11 can be sprayed on both sides of the roadway 2 along the traveling direction of the vehicle without being reversed.

Further, when the herbicide 66 is sprayed simultaneously on the borders of the curb 4 on the left side on both the roadway 2 side and the sidewalk 3 side, the third injection nozzle mounting plate 30 is in the state shown in FIG. 19 is driven to move the first injection nozzle mounting plate 22 to the left side. This operation will be described in detail. As shown in FIG. 7, the motor 51 of the lower horizontal movement mechanism 19 is driven to engage the pinion gear 52 with the rack 50 and move the rear lateral movement frame 20 in the direction of the arrow. Along with the movement of the rear stage lateral movement frame 20, the first injection nozzle mounting plate 22 connected thereto also moves in the direction of the arrow.

At this time, the first hollow column 21 is connected to the main body frame 13 and does not move, but the cable of the motor 51 protected by the wire 56, the four hoses 35 and the hoses 57 as shown in FIG. 59 is connected and descends integrally. Both ends of the wire 56 are connected to the rear stage lateral movement frame 20 and the bracket 55 of the first injection nozzle mounting plate 22, move in the direction of the arrow through the pulleys P 1 to P 4, and the hoses 35 and 57 move down together with the wire 56. It is pulled out from the lower end opening of one hollow support 21.

As a result, it passes over the curb 4 and reaches the sidewalk 3 side. In this state, when an arbitrary lever 42 of the control panel 40 is rotated and the opening / closing valve 41 is opened, the herbicide 66 is removed from the arbitrary injection nozzle 23 through the hose 35 by the pump 15 from the herbicide tank 14. It is scattered on the boundary of the sidewalk 3. The hose 35 connecting the pump 15 and the joint 70 shown in FIG. 3 returns the surplus herbicide 66 to the herbicide tank 14.

Thus, by driving the lower horizontal movement mechanism 19 and the lower horizontal movement mechanism 29, the herbicide 66 can be simultaneously sprayed on both sides of the curb 4. Further, since the bottom of the cover 36 is higher than the curb 4 in the first spray nozzle mounting plate 22, the first spray nozzle mounting plate 22 is inserted between the curb 4 and the place where the guard rail 8 is installed. Can perform spraying work. By spraying the herbicide 66 in this way, the grass 5 does not grow or the grown grass 5 can be withered, so there is an advantage that the conventional processing for transporting the cut grass 5 is unnecessary and the cost is low.

Thus, since the expensive herbicide 66 is spread | dispersed only to a required part, even if it spreads over a long distance, processing cost is cheap. Further, along with the herbicide spraying vehicle 10, a truck equipped with the herbicide tank 14 is run, and the herbicide 66 is supplied from here to the herbicide spraying vehicle 10, so that long distance spraying is continuously performed. Can do.

Further, when the herbicide 66 is simultaneously sprayed on the boundary between the curb 4 on the right side of the drawing 4 and the median strip 7 and the sidewalk 3, the third spray nozzle mounting plate 30 drives the horizontal moving mechanism 29 in the lower part to drive the horizontal moving mechanism 29 in FIG. 9, the upper horizontal movement mechanism 18 is driven as shown in FIG. 9 to move the front horizontal movement frame 25 to the right side as shown by the virtual line.

Explaining this operation in detail, the motor 51 of the upper horizontal movement mechanism 18 is driven to engage the pinion gear 52 with the rack 50 and move the front lateral movement frame 25 in the direction of the arrow. Along with the movement of the front lateral movement frame 25, the second hollow support column 26 and the second injection nozzle mounting plate 28 connected thereto also move in the arrow direction.

Next, when the lever 42 of the control panel 40 is rotated and the optional opening / closing valve 41 is opened, the herbicide 66 is supplied from the herbicide tank 14 to the arbitrary injection nozzle 23 through the hose 35 by the pump 15, and from here the herbicide 66. Is sprayed. In this way, the crawler 11 is run while the herbicide 67 is sprayed, and both sides of the curb 4 are sprayed continuously. Note that the hose 35 does not move inside the second hollow column 26, and there is no wire 56 like the first hollow column 21, and the slack of the hose 35 due to the movement is absorbed by the upper surface of the main body frame 13.

That is, the hose 35 of the second injection nozzle mounting plate 28 at the front can be protruded forward, but the hose 35 of the first injection nozzle mounting plate 22 at the rear is the second injection nozzle mounting plate 28 at the front. Therefore, the hose 35 is prevented from being entangled by raising and lowering the inside of the first hollow column 21 up and down.

In the case of a narrow roadway 2, as shown in FIGS. 7 and 9, the first injection nozzle mounting plate 22 and the second injection nozzle mounting plate 28 may be extended to both sides and simultaneously sprayed on both sides. In addition, since there are places where these injection nozzles 23 cannot cope with, as shown in FIG. 3, a manual spreader 75 provided with an injection nozzle at the tip of the pipe is provided.

In the above description, the mechanism for moving the upper horizontal movement mechanism 18 and the lower horizontal movement mechanism 19 by the rack and the pinion gear is shown, but a hydraulic drive device may be used. In addition, although the first hollow support column 21 and the second hollow support column 26 have been described with respect to the case where square tubes are used, a U-shaped support column such as a channel material or other support columns may be used. In addition, an obstacle detection sensor is attached, and when the obstacle is detected, the operation panel 72 is automatically operated so that the first injection nozzle attachment plate 22, the second injection nozzle attachment plate 28, and the third injection nozzle attachment plate 30 are provided. You may make it evacuate. Moreover, although the case where the crawler 11 was used as a traveling vehicle was demonstrated, a 3-wheel or 4-wheel vehicle may be sufficient.

1 is a side view of a herbicide spray vehicle according to an embodiment of the present invention. It is a front view of the herbicide spreading vehicle shown in FIG. It is a top view of the herbicide dispersion vehicle shown in FIG. It is a top view which shows a branch joint. It is a top view which shows a control panel. It is sectional drawing which shows an raising / lowering mechanism. It is explanatory drawing which excluded the hose which shows operation | movement of the horizontal movement mechanism of a lower stage. It is sectional drawing of a 1st hollow support | pillar. It is explanatory drawing which shows operation | movement of the horizontal movement mechanism of an upper stage. It is sectional drawing which shows a lower horizontal movement mechanism. It is sectional drawing which shows the state of the grass which grew along the curb of a roadway.

1 Asphalt
2 roadway
3 Sidewalk
4 Curbstone
5 Grass
10 Herbicide sprayer 11 Crawler
13 Body frame 14 Herbicide tank 15 Pump
16 Elevating mechanism 17 Elevating plate 18 Upper horizontal moving mechanism 19 Lower horizontal moving mechanism 20 Rear lateral movement frame 21 First hollow column 22 First injection nozzle mounting plate 23 Injection nozzle 25 Front lateral movement frame
26 Second hollow strut
28 Second injection nozzle mounting plate
29 Lower horizontal movement mechanism
30 Third injection nozzle mounting plate
33 Branch joint
35 hose
40 Control panel
41 Opening / closing valve 50 Rack P1, P2, P3, P4 Pulley 50 Rack 51 Motor 52 Pinion gear 56 Wire 60 Electric cylinder 66 Herbicide 72 Operation panel

Claims (5)

A herbicide tank mounted on the traveling vehicle, a pump connected to the tank, a branch joint connected to the discharge pipe of the pump, a plurality of hoses connected to the branch joint, and an intermediate between these hoses. An opening / closing valve, an elevating mechanism provided on the front surface of the main body frame of the traveling vehicle, an elevating plate attached to the elevating mechanism, and a two-stage horizontal moving mechanism vertically attached to the front surface of the elevating plate, A rear lateral movement frame attached to the horizontal movement mechanism, a first injection nozzle attachment plate attached to the rear lateral movement frame, a first support column erected on the front surface of the main body frame, and the first support structure The plurality of hoses drawn from the upper side to the lower side, the injection nozzles connected to the tip ends of the hoses, and spaced laterally through the first injection nozzle mounting plate; The other The front side lateral movement frame attached to the horizontal movement mechanism, the second injection nozzle attachment plate attached to the front side lateral movement frame, the second support column erected on the upper horizontal movement mechanism, and the second support element The plurality of hoses attached from the upper part to the lower part, and end parts of the hoses connected to each other, and the injection nozzles attached at intervals in the lateral direction via the second injection nozzle attachment plate, After driving the lifting mechanism to set the lifting plate to a predetermined height, one horizontal movement mechanism is driven to move the rear lateral frame attached here to the left and right and connected to the open on-off valve Inject the herbicide from an arbitrary injection nozzle through a hose to drive the other horizontal movement mechanism to move the front side lateral frame attached here to the left and right, and pass through the hose connected to the open on-off valve. A herbicide spraying vehicle characterized in that herbicide is sprayed from a desired injection nozzle. The elevating mechanism provided on the front of the main body frame is composed of pinion gears that are provided with racks in the vertical direction on both the left and right sides of the main body frame, and an elevating motor that engages with the rack on the elevating plate side. The horizontal movement mechanism of the upper and lower stages mounted in the direction consists of a rack mounted horizontally on the lifting plate side and a motor mounted with a pinion gear that meshes with the rack mounted on the front and rear lateral frame side The herbicide spray vehicle according to claim 1, wherein A wire that moves up and down following the rear lateral movement frame is provided on the first column that is erected on the front surface of the main body frame, and the middle of the wire and a plurality of bundled hoses are connected to move the wire. A hose is moved up and down with it, The herbicide dispersion vehicle of Claim 1 or 2 characterized by the above-mentioned. A herbicide spray vehicle according to claim 1 or 2, a lower horizontal movement mechanism that is driven horizontally in a lower part of a main body frame of a traveling vehicle, and a third injection nozzle mounting plate provided in the lower horizontal movement mechanism; The spray nozzle is mounted on the third spray nozzle mounting plate at an interval in the lateral direction, and the herbicide is sprayed from any spray nozzle through a hose connected to the open on-off valve. Characteristic herbicide sprayer. The lower horizontal movement mechanism attached horizontally to the lower part of the main body frame is configured by connecting the electric cylinder attached to the main body frame side and the tip of the piston of this cylinder to the third injection nozzle mounting plate. The herbicide spray vehicle according to claim 4.