JPH06153754A - Pesticide applicator - Google Patents

Abstract

PURPOSE:To provide a pesticide applicator enabling pesticides to be applied uniformly while regulating the distance between an application stage and the ground. CONSTITUTION:The objective mobile applicator connected to a truck 2 and applying pesticides on the ground is equipped with (A) an application stage extendible in the direction of truck width with plural pesticide spray nozzles 8 arranged at specified intervals, (B) a means 23 to regulate the vertical position of the application stage according to the change in the height of the spray nozzles from the ground with the movement of the truck, and (C) a means 24 to regulate the angle in the direction of truck width for the application stage according to the change in the inclination in the direction of truck width for the ground with the movement of the truck.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chemical spraying device. More specifically, the present invention relates to a drug spraying device that is connected to a vehicle such as an automobile and sprays a drug onto the ground while moving.

[0002]

2. Description of the Related Art For example, various chemicals are sprayed on a grass-covered ground such as a golf course in order to prevent the growth of weeds, pests and the like that hinder the growth of the grass.

In the above-mentioned golf courses and the like, since it is necessary to spray the drug on a large area of the ground, it is often the case that a drug tank is loaded on a vehicle such as a truck and the drug is sprayed while moving.

A drug spraying device used for the above-mentioned drug spraying work is constructed by providing a spraying rod, which extends in the vehicle width direction and in which drug spraying nozzles are arranged at predetermined intervals, in the rear part of the vehicle. Then, the medicine is sprayed on the ground in a width corresponding to the length of the spray rod as the vehicle moves.

[0005]

However, in the conventional chemical spraying device, the spraying rods are often fixedly provided on the vehicle.

[0006] On the other hand, the ground such as a golf course is rich in undulations, and it is very difficult to spray the drug while keeping the distance between the drug spray nozzle of the drug spray rod and the ground constant. .

That is, since the ground contact position of the rear wheel of the vehicle and the front-rear position where the spray rod is provided are separated, the height of the spray nozzle of the chemical spray rod with respect to the ground is increased due to the movement of the vehicle and the undulation of the ground. It will change.

Further, the ground surface has undulations in the vehicle width direction, and in the case of a linear spreading rod, the distance between the drug injection nozzles provided at both ends and the ground surface may differ greatly. Conceivable.

If the heights of the drug injection nozzles provided on the spray rods from the ground are different, the drug cannot be sprayed uniformly.

In particular, if the height of the above-mentioned medicine injection nozzle from the ground is too high, it is likely to be affected by wind or the like, and the spraying density of the injected medicine will be reduced. Therefore, the effect of the drug cannot be expected sufficiently.

Further, if the spraying density of the medicine is uneven, it is necessary to increase the number of times of spraying in order to exert the effect of the medicine.

As a result, a large amount of the drug is used, the cost of the drug is increased, and so-called environmental problems may occur.

The present invention was conceived under the above-mentioned circumstances, solves the above-mentioned conventional problems, and adjusts the distance from the ground of the spraying rod in the chemical spraying device,
It is an object of the present invention to provide a drug spraying device that can uniformly spray a drug.

[0014]

In order to solve the above problems, the present invention takes the following technical means. That is, the invention described in claim 1 of the present application is a drug spraying device that is connected to a vehicle and sprays a drug onto the ground while moving, and extends in the vehicle width direction and is provided at a predetermined interval. In accordance with the change in the height of the spray nozzle from the ground due to the movement of the vehicle and the spraying rod in which the chemical injection nozzle is arranged, the vertical position adjusting means for adjusting the vertical position of the spraying rod, and the movement of the vehicle. Angle adjusting means for adjusting the vehicle width direction angle of the spray rod in accordance with the change in the vehicle width direction inclination of the ground accompanying it.

The invention described in claim 2 of the present application is
The vertical position adjusting means is configured by supporting the spray rod so as to be swingable around a vehicle width direction axis and providing a driven wheel for supporting the spray rod at a predetermined height from the ground. It has a feature.

Further, the invention described in claim 3 of the present application is
It is characterized in that the angle adjusting means is configured to support the spreading rod so as to be swingable around a longitudinal axis and to provide driven wheels at least at both ends of the spreading rod.

The invention described in claim 4 of the present application is
The chemical spray rod is configured to include a plurality of rod portions, each rod portion is connected so as to be relatively rotatable in a plane substantially vertical to the moving direction according to the undulations of the ground in the vehicle width direction. It is characterized by being.

[0018]

In the chemical spraying apparatus according to the present invention, a spraying rod extending in the vehicle width direction and having a plurality of chemical spraying nozzles arranged at predetermined intervals, and an up and down position for adjusting the vertical position of the spraying rod are provided. Position adjusting means and angle adjusting means for adjusting the vehicle width direction angle of the spray rod are provided.

The vertical position adjusting means is configured to adjust the vertical position of the spray rod according to a change in height of the injection nozzle from the ground due to movement of the vehicle.

That is, in the present invention, the spraying rod is not fixedly provided to the vehicle, but the chemical spraying work can be performed while maintaining the height from the ground directly below the spraying rod substantially constant. It is configured so that it can be done.

Therefore, even when the height of the ground on which the tire of the vehicle is in contact with the ground directly below the spray rod is different, the spray rod is maintained at a substantially constant height above the ground directly below it. It becomes possible to spray the drug.

By providing the above-mentioned vertical position adjusting means, even when the ground has undulations in the moving direction of the vehicle, it becomes possible to spray the medicine while adjusting the height of the spraying rod according to the undulations. Therefore, the medicine can be evenly distributed.

The above-mentioned vertical position adjusting means may be provided in accordance with claim 2 of the present application.
According to the invention described in (1), it can be configured by providing the driven rods swingably around the vehicle width direction axis and providing the driven wheels that support the dispersed rods at a predetermined height from the ground. .

The driven wheel is provided in the vicinity of the spreading rod, and can hold the spreading rod at a substantially constant height above the ground.

On the other hand, the spray rod is swingably supported around the vehicle width direction axis, and even when the ground on which the wheels of the vehicle are grounded and the ground on which the driven wheels are ground are different in height. The spray rods are swung by the driven wheels, and the spray rods can be held at a substantially constant height above the ground.

The angle adjusting means is configured to adjust the vehicle width direction angle of the spray rod according to the change in the vehicle width direction inclination of the ground accompanying the movement of the vehicle.

By providing the angle adjusting means, even when the ground has an inclination in the vehicle width direction, the vehicle in the vehicle width direction directly below the spray rod is not affected by the inclination angle of the vehicle in the vehicle width direction. It is possible to support the spreading rod according to the inclination.

Therefore, the height from the ground of the medicine injection nozzles arranged in the above-mentioned spray rods does not vary greatly depending on the place of arrangement, and there is almost no difference in the spraying density of the chemicals along the spray rods. Disappear.

According to the invention as set forth in claim 3, the angle adjusting means supports the spreading rod so as to be swingable around the longitudinal axis, and is provided with driven wheels at least at both ends of the spreading rod. It can be configured by

By providing the driven wheels at both ends of the spray rod, both end portions of the spray rod are supported at the same height from the ground surface immediately therebelow. Therefore,
It is possible to support along the slope of the ground just below the spray rod.

Further, by supporting the above-mentioned spray rods so as to be swingable around the longitudinal axis, the slope of the vehicle directly below the ground can be adjusted without being affected by the change in the vehicle width direction angle. It is possible to hold the spray rods by means of this, and it is possible to move while spraying the drug while holding the spray rods substantially parallel to the ground.

Further, as in the invention described in claim 4 of the present application, the chemical spray rod is composed of a plurality of rod portions, and each rod portion is substantially perpendicular to the moving direction according to the undulation of the ground in the vehicle width direction. It is possible to relatively rotatably connect in a flat plane.

By constructing the above-mentioned chemical spray rod by connecting a plurality of rod portions so as to be rotatable relative to each other, the entire chemical spray rod is bent in an articulated manner in accordance with the undulation of the ground in the vehicle width direction. It becomes possible to spray the drug.

Therefore, according to the complicated ups and downs of the ground, the chemicals can be sprayed while holding the rod portions substantially parallel to the ground, and the chemicals can be evenly sprayed.

As described above, according to the above configuration of the present invention, it becomes possible to spray the drug while keeping the spray rods substantially parallel to each other according to the ups and downs of the ground, and it is possible to uniformly spray the drug.

Further, since the effect of the drug can be sufficiently exerted by uniformly spraying the drug, the number of times of spraying the drug can be reduced. Therefore, it is possible to reduce the amount of medicine used and the cost required for the medicine. Further, since the amount of sprayed medicine is reduced, it is possible to prevent environmental problems and the like from occurring.

[0037]

Description of Embodiments Embodiments according to the present invention will be specifically described below with reference to the drawings. As shown in FIG. 1, the drug spraying device 1 according to the present embodiment is connected to the rear part of the loading platform of the truck 2, and by supplying the drug stored in the drug tank 3 loaded on the loading platform by the pump 4, It is configured to spray the drug onto the ground 5.

As shown in FIGS. 1 and 2, the chemical spraying apparatus 1 according to the present embodiment has a pedestal 6 connected to the rear end of the truck 2 and a vehicle width provided at the lower end of the pedestal 6. A traction arm 7 that is rotatably supported by the direction shaft 13, and a spray rod 9 that is connected and supported by the rear end of the traction arm 7 and that extends in the vehicle width direction and in which drug injection nozzles 8 are arranged at predetermined intervals. It is generally configured with.

As shown in FIG. 2, the pedestal 6 is formed in a substantially rectangular frame shape, and the truck 2 is mounted via a bracket 10 attached to the rear end of the loading platform of the truck 2 by welding.
It is connected and fixed to the end of the cargo bed.

The side frame portions 6a, 6a of the mount 6 are
It is fixed to the bracket 10 by a bolt 11 so that the position thereof can be adjusted in the vertical direction. Further, the lower end portions of the side frame portions 6a, 6a of the gantry 6 are L toward the front of the truck.
The pulling arm 7 is supported by a frame member 12 which is bent in a letter shape and which is supported in a bridging manner at the ends of these bent portions.

The towing arm 7 is rotatably connected to the vehicle width direction shaft 13 provided on the frame member 12, and the spray rod 9 is supported at the rear end thereof.

As shown in FIGS. 1 and 5, the spray rod 9 is a vehicle longitudinal axis 15 supported by bearings 14, 14 provided on the upper surface of the rear end portion of the traction arm 7, and the longitudinal axis thereof. It is connected to the traction arm 7 via a support arm 42 joined to the rear end of the shaft 15 and is swingably supported around the longitudinal shaft 15.

The spray rod 9 according to this embodiment is constructed by connecting three rod portions 9a, 9b, 9c in the vehicle width direction. The rod portions 9a, 9b, 9c are connected at a connecting portion via a shaft 39 extending in the vehicle front-rear direction, and are configured to be allowed to rotate in a plane orthogonal to the shaft 39. There is.

A medicine supply pipe 17 is supported in parallel with each of the above-mentioned scattering portions 9a, 9b, 9c through a hanger 16. Further, in the medicine supply pipe 17, medicine injection nozzles 8 for ejecting a medicine onto the ground are arranged at predetermined intervals. A hose 18 extending from the pump 4 is connected to each of the medicine supply pipes 17 so that the medicine can be supplied from the medicine tank 3 loaded on the vehicle and sprayed onto the ground.

In this embodiment, both end portions of the rod portion 9a provided in the central portion and the rod portions 9 provided on both sides are provided.
Driven wheels 19 are provided at the outer ends of b and 9c, respectively.

As shown in FIGS. 1 and 4, the driven wheel 19 is provided with an arm 20 extending rearward from each of the rod portions 9a, 9b, 9c, and a wheel 21 is provided at the rear end of the arm 20.
A fork portion 22 that rotatably supports is rotatably supported around a vertical axis.

In the medicine spraying apparatus 1 having the above-mentioned structure, the vehicle width direction shaft 13 provided on the frame member 12 as shown in FIG.
The traction arm 7 rotatably connected to the driven wheel 1 and the driven wheel 1
The vertical position adjusting means 23 for adjusting the vertical position of the spray rod 9 is constituted by 9 and 9.

That is, as shown in FIG. 6, the rear end portion of the pulling arm portion 7 rotatably supported by the vehicle width direction shaft 13 is driven by the driven wheel 19 positioned immediately after the injection nozzle. The wheels 19 are held at a substantially constant height above the ground where the wheels 19 are in contact with the ground. The driven wheel 19 is provided immediately after the injection nozzle 8. Therefore, even if the ground surface is undulated in the moving direction of the truck 2, the driven nozzle 19 does not depend on the grounding position of the rear wheel 2b of the truck. It is possible to maintain the height at a substantially constant level from the ground surface directly below the injection nozzle 8.

Further, in this embodiment, as shown in FIGS. 4 and 5, the support arm 42 is connected to the rear end of the longitudinal shaft 15 provided at the rear end of the pulling arm 7. , By supporting the spreading rod 9 rotatably around the longitudinal axis 15 and providing driven wheels 19 on both sides of the spreading rod 9 to change the inclination of the ground in the vehicle width direction with the movement of the vehicle. Accordingly, an angle adjusting means 24 for adjusting the vehicle width direction angle of the spray rod 9 is configured.

Both ends of the rod portion 9a are connected to the driven wheel 1
By holding at a predetermined height above the ground directly below by 9, the angle of the rod portion 9a in the vehicle width direction can be supported according to the inclination in the vehicle width direction.

Therefore, as shown in FIG. 7, the rod portion 9a is not affected by the inclination of the ground contact surface of the rear wheel 2b of the truck 2 in accordance with the inclination in the vehicle width direction of the ground directly below the rod portion 9a. It is possible to spray the drug while holding the same substantially parallel. Therefore, the height of the medicine injection nozzle 8 arranged in the rod portion 9a from the ground does not vary greatly depending on the arrangement location, and the difference in the spraying density of the medicine along the spraying rod hardly occurs. .

Further, as shown in FIGS. 2 and 7, the chemical spray rod according to the present embodiment has three rod portions 9a, 9b, 9c.
Are connected in the vehicle width direction. Also, each rod 9
As shown in FIG. 3, a, 9b, and 9c are connected to each other at a connecting portion so as to be relatively rotatable about an axis extending in the front-rear direction. Further, the rod portions 9b connected to both ends of the rod portion 9a,
Driven wheels 19 are provided at the outer ends of 9c, respectively, and cooperate with the driven wheels of the rod portion 9a provided at the central portion to connect the rod portions 9b and 9c on both sides to the ground directly below. The angle can be adjusted independently according to changes in the vehicle width direction inclination.

That is, since the rod portions 9a, 9b, 9c are connected so as to be rotatable relative to each other in the plane substantially perpendicular to the movement direction according to the undulation of the ground 5 in the vehicle width direction, the spreading rod 9 The whole can be sprayed with the medicine while bending in a multi-joint shape according to the undulation of the ground 5 in the vehicle width direction.

Therefore, depending on the complicated ups and downs of the ground 5,
It is possible to spray the drug while holding the rod portions 9a, 9b, 9c substantially parallel to the ground 9.

Therefore, it becomes possible to make the spraying density of the drug uniform, and the effects of the drug can be sufficiently exhibited. Further, since there is no unevenness in the spraying density, it is not necessary to repeatedly spray the drug, and the amount of the drug used can be reduced. Furthermore, since the amount of the drug used can be reduced, the cost required for the drug can be reduced, and the amount of the drug used is reduced, so that there is no fear of causing environmental problems.

Further, in the medicine spraying device 1 of this embodiment, the rod portions 9b, 9c provided on both sides are provided.
Is configured so that it can be folded.

That is, as shown in FIG. 2 and FIG.
A hydraulic cylinder 27 is provided at a connecting portion between the spreading rod 9a and the spreading rods 9b and 9c, and a piston 28 extending from the hydraulic cylinder 27 causes a rod portion 9b,
9c can be folded upward (in the direction of arrow P) substantially at right angles to the central rod portion 9a.

The hydraulic cylinder 27 includes a hydraulic pressure generating section 27.
a and a cylinder portion 27b that drives the piston 28. On the other hand, brackets 41 having opposing walls in which arcuate slots 29 are formed are joined to the inner ends of the rod portions 9b and 9c. Both ends of the connecting pin 28a provided at the tip of the piston 28 are engaged with the arc-shaped elongated hole 29 as shown in FIG.

The connecting pin 28a has the rod portions 9b and 9b.
It is configured so as to be positioned at the center of the elongated hole 29 in a state where C is expanded, and the rod portions 9b and 9c are allowed to rotate relative to each other by the length of the elongated hole 29. Therefore,
The rod portions 9a, 9b, 9c are bent by the driven wheels 19 in an articulated manner along the undulations of the ground.

On the other hand, when the piston 28 is pulled, the connecting pin 28a is engaged with the upper end portion of the elongated hole 29 to rotate the bracket 41 or the rod portion 9c upward. Then, the upper rod portion 9c is held in a state substantially perpendicular to the rod portion 9b.

Further, at the upper end of the elongated hole 29, the recess 3 is formed.
0 is provided, and when the rod portions 9b and 9c are opened, the connecting pin 28a of the piston 28 is engaged with this recess so that the bracket 41 can be pushed outward in the vehicle width direction. ing.

As shown in FIG. 5, the rod portion 9b,
9c is configured to be allowed to rotate in the rearward direction of the vehicle via the vertical shaft 40, and is elastic so that it is always aligned in a straight line by the spring 31 with respect to the rod portion 9a. Being energized. With the above configuration, when the spray rods 9b and 9c collide with a grove or the like, the spray rods 9b and 9c are elastically bent rearward, and the chemical spray device is prevented from being damaged.

Further, in this embodiment, as shown in FIG. 4, a hydraulic cylinder 32 is provided on the upper part of the frame 6, and the spray rod 9 or the pulling arm 7 for supporting the spray rod 9 is moved upward (in the direction of arrow Q). It is configured to pull up to.

The hydraulic cylinder 32 includes a hydraulic pressure generator 32.
a and a cylinder portion 32b for driving the piston 28, and the tip end portion of the piston 28 is connected to the upper end portion of the chain 34 whose lower end is connected to the pulling arm 7.

The chain 28 is moved by the piston 28.
Is pulled in the direction of arrow R, the pulling arm 7 or the spreading rod 9 is pulled up from the state shown by the solid line in FIG. 4 to the state shown by the virtual line.

Stoppers 37 bent downward in a substantially L shape are provided on both sides of the rear portion of the pedestal 6, and are provided above the spray rods 9 with the pulling arm 7 being pulled up. The locking bar 36 is configured to abut.

As shown in FIG. 5, a pair of springs 37 for horizontally holding the spreading rods when the pulling arm 7 is pulled up are provided at both ends of the locking bar 36. 9 is folded in a predetermined posture.

On the other hand, a locking arm 37 extending in the vehicle width direction is provided on the upper part of the pedestal 6, and the tip ends of the folded rod portions 9b, 9c on both sides are locked by the locking arm 38.
It is held in the state of being locked to. With the above configuration, the spreading rod 9 can be folded along both sides of the bed of the truck 2. Therefore, the truck easily moves when the medicine is not sprayed. In addition, the spray rod 9 does not come into contact with trees or the like during the movement.

The scope of the present invention is not limited to the above embodiments. Although the medicine spraying device is connected to the rear of the vehicle in the embodiment, it may be connected to the front of the vehicle.

Further, in the embodiment, the spreading rod 9 is composed of the three rod portions 9a, 9b, 9c, but it may be constituted by only the central rod portion 9a.

Further, as the vertical position adjusting means, the towing arm 7 which supports the spreading rod 9 swingably around the vehicle width direction axis provided at the rear portion of the vehicle, and the spreading rod 9 depending on the undulation of the ground. Although the driven wheel 19 for holding the spray rod 9 at a constant height is provided, for example, a vertical position adjusting means for holding the spray rod 9 at a constant height while measuring the height from the ground by an ultrasonic sensor or the like is provided. It can also be configured.

Further, as the angle adjusting means, the driven wheels 19 are provided on both sides of the spray rod 9, but the ultrasonic sensors or the like are provided at both ends of the spray rod 9 so that both ends of the spray rod 9 are directly below. The angle in the vehicle width direction of the spray rod 9 may be adjusted so as to maintain the same height from the ground.

[Brief description of drawings]

FIG. 1 is an overall side view of a vehicle equipped with a drug spraying device according to the present invention.

FIG. 2 is a rear view of the drug spraying device according to the present invention.

FIG. 3 is an enlarged view of a main part taken along a line III-III in FIG.

4 is a sectional view taken along line IV-IV in FIG.

5 is a cross-sectional view taken along the line VV in FIG.

FIG. 6 is a view for explaining the action of the chemical spraying device according to the present invention.

FIG. 7 is a view for explaining the action of the chemical spraying device according to the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Chemical spraying device 2 Vehicle (truck) 5 Ground 8 Injection nozzle 9 Spray rods 9a, 9b, 9c Rod part 13 Vehicle width direction axis 15 Front-back direction axis 23 Vertical position adjusting means 24 Angle adjusting means

Claims (4)

[Claims] 1. A drug spraying device connected to a vehicle and spraying a drug onto the ground while moving, wherein the drug spraying device extends in the vehicle width direction and has a plurality of drug injection nozzles arranged at predetermined intervals. Pole and vertical position adjusting means for adjusting the vertical position of the spray rod according to the change in the height of the injection nozzle from the ground due to the movement of the vehicle, and the vehicle width direction inclination of the ground along with the movement of the vehicle. An agent adjusting device for adjusting a vehicle width direction angle of the application rod according to a change. 2. The vertical position adjusting means is configured by supporting the spreading rod so as to be swingable around an axis in the vehicle width direction, and providing a driven wheel for supporting the spreading rod at a predetermined height above the ground. The chemical | medical agent spraying apparatus of Claim 1 characterized by the above-mentioned. 3. The angle adjusting means is configured by supporting the spreading rod so as to be swingable around a longitudinal axis and providing driven wheels at least at both ends of the spreading rod. The chemical spraying device according to claim 1. 4. The chemical spray rod is configured to include a plurality of rod portions, and each rod portion relatively rotates in a plane substantially perpendicular to the movement direction according to the undulations of the ground in the vehicle width direction. The drug spraying device according to claim 1, wherein the drug spraying device is operably connected.