JPH1156201A - Agrochemical sprayer and hood body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent scattering of sprayed agrochemical beyond tea levees in spraying the agrochemical in a tea field and improve workability of the agrochemical spraying. SOLUTION: This agrochemical sprayer has a hod body assembly 9A covering a hood body 9 on an integrally bound body of a pipe 5 having a nozzle with a skeleton body and hung from a holding arm 3b which is projected from a frame 2 of a cart 1 to an upper positions of tea levee T. The right and left inclination of the hood body 9 is suitably set by a hooking member 10 connecting the skeleton body to an inclination controlling board 3d. An agrochemical press-fed from a sprayer main body is supplied to the pipe 5 having the nozzle through a hose and the cart 1 is advanced while spraying the agrochemical from the nozzle 5b in a space almost surrounded by an upper face part, a back face part and side face parts of the hood body 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a medicine spraying device and a hood used for the medicine spraying device.

[0002]

2. Description of the Related Art Conventionally, when a medicine is sprayed using a power sprayer in a tea garden or the like, an operator holds a rod 21 having a nozzle 20 by hand as shown in FIG. There is known a spraying method in which the sprayer moves. Then, the medicine (liquid) is pressure-fed to the rod 21 by a high-pressure pump (not shown) driven by the engine power and sprayed downward from the nozzle 20.

[0003]

However, chemicals atomized in a mist form are often scattered on the wind, causing environmental problems in the vicinity and causing a large amount of chemicals to be sucked by the worker himself. Has also occurred. Also,
Since the rod is held by hand, the spray position (particularly, the distance from the nozzle to the tea leaves) becomes unstable, and it is difficult to uniformly spray the medicine. Therefore, there is a tendency that more and more drugs are used in anticipation of scattering.

[0004] The present invention has been made in view of the above problems, and has as its object to prevent a sprayed drug from scattering to a distant place when the drug is sprayed on agricultural products. It is another object of the present invention to improve workability when spraying a medicine and to reduce the amount of medicine used.

[0005]

For this purpose, the following hood body and medicine spraying device were created. That is, a first invention is a hood used for a medicine spraying device of a type in which a nozzle for spraying a medicine is supported and moved above a crop, and is configured to be attachable to the medicine spraying device, and has a lower end portion. Is formed in such a shape that it can cover the upper side, the left and right sides, and the rear side of the nozzle in a state of being close to or in contact with the upper surface of the crop.

If the above-mentioned food is used for a medicine spraying device, the medicine is sprayed from the nozzle toward the upper surface of the crop in a space substantially surrounded by the food, thereby preventing the medicine from scattering far away. Is done. Since the front portion of the hood is open, sufficient outside air can enter the inside of the hood even if the lower portion of the hood is closed by crops. Therefore, even if the hood body is formed of a lightweight sheet material or the like, a stable spraying state is maintained such that the sheet material or the like becomes difficult to be sucked to the nozzle for ejecting the medicine.

According to a second aspect of the present invention, there is provided a medicine spraying apparatus comprising: a wheel capable of rolling on the side of a crop, a frame rising from the wheel, and a nozzle for spraying a medicine supported by the frame above the crop. A hood body attached to the frame and formed in a shape capable of covering the upper part, the left and right sides, and the rear side of the nozzle with the lower end part being close to or in contact with the upper surface of the crop. Features.

In the above-mentioned medicine spraying apparatus, the sprayed medicine is prevented from being scattered by the hood, and the wheels are provided so that the medicine can be easily moved, and at the same time, the nozzle is supported at a substantially constant height. In addition, the medicine can be easily and uniformly sprayed.

According to a third aspect of the present invention, in the above-mentioned medicine spraying apparatus, an inclination adjusting means for tilting and holding the hood body is provided.

[0010] In the above-mentioned chemical spraying apparatus, when the shape of the crop is not symmetrical with respect to the vertical line such as a tea ridge on a slope, for example, the hood is tilted to one of the right and left in accordance with the shape. It becomes possible to spray a medicine efficiently.

When the medicine spraying device is used in a tea garden, a plurality of nozzles for spraying the medicine are arranged in a direction substantially perpendicular to the tea ridge (at right angles) and are supported above the tea ridge. Since the dispersing device is moved along the tea ridge, the above-mentioned hood body is formed in a substantially arch shape corresponding to the cross-sectional shape of the tea ridge, or at least the lower end edge of the hood body is a cross-section of the tea ridge. It is preferable to form it into a substantially arc-shaped notch corresponding to the shape. that way,
Since the hood body easily follows the surface of the tea ridge, it is possible to more reliably shield the upper side, the left and right sides, and the rear of the nozzle. In addition, even if the hood body is tilted left and right, a large gap is not formed, so that the shielding effect does not change, and leakage (scatter) of the medicine to the rear of the worker is prevented.

[0012]

An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing a main part (hood assembly) of the medicine spraying apparatus in a see-through state, and FIG. 2 is a sectional view taken along line AA of FIG. 3 to 5 are exploded perspective views of the medicine spraying device, and FIG. 3 is a hood body viewed from the rear,
4 shows a bone body, FIG. 5 shows a tube with a nozzle, and FIG. 6 shows a handcart.

First, a wheelbarrow (unicycle) 1 will be described. As shown in FIG. 6, a cylindrical column 3a of a support 3 is inserted into a rod-shaped frame 2 rising from a wheel 2a, and obliquely upward from the column 3a. A suspension portion 3c is provided at the tip of the protruding support arm 3b. On the support 3a,
A tilt adjusting plate 3d, which will be described later, is mounted so as to protrude in the same direction as the support arm 3b, and the frame 2 is provided with a handle 4 for an operator to operate. The height of the support 3 and the handle 4 can be adjusted by loosening the set screws 3e and 4a. The steering wheel 4 may be provided with switches for controlling the injection device main body (described below).

FIG. 5 shows the supporting arm 3b.
4 and a bone body 6 having a shape shown in FIG. 4 are suspended by being integrated by a fastener such as a binding band 7. The pipe 5 with a nozzle has a plurality of nozzles 5b for spraying a medicine attached to a pipe body 5a, as shown in FIG. 5, and a hose (or pipe) 5c connected to the nozzle 5b is attached to the pipe body 5a. A coupler 5 for connecting to an external hose (pipe for feeding a medicine) of a spraying device main body (not shown) is provided at the tip of the hose 5c.
d is attached. That is, the medicine (liquid) pumped by the high-pressure pump driven by the engine power of the spraying device main body is supplied to the nozzle-equipped pipe 5, and is sprayed in a mist form from the nozzle 5b. In addition, since the spraying device main body constituting the spraying means is well-known, a detailed description thereof will be omitted. The pipe body 5a has a two-part structure so as to be convenient to carry, and is used by being connected with a connection fitting 5e.

The bone body 6 is composed of a spine member 6a having a two-part structure and a small bone member 6b attached so as to be substantially orthogonal to the spine member 6a, as shown in FIG. 4, and the spine member 6a is connected to a lug 6c. A portion 6d is provided. The center suspension ear of the three suspension ears 6c is rotatably connected to the suspension part 3c via bolts 8a and nuts 8b. In the case of this example, the pipe body 5a and the spine member 6a that are tied together by the binding band 7 are curved or bent into a substantially arch (substantially arc) shape corresponding to the cross-sectional shape of the kamaboko-shaped tea ridge. The plurality of nozzles 5b disposed on the pipe body 5a can face the surface (leaf surface) of the tea tree at predetermined intervals.

Next, the hood 9 to be put on the bone 6 will be described. As shown in FIGS. 1 to 3, the hood body 9 is formed of a lightweight sheet material such as a vinyl sheet or a synthetic fiber cloth as a whole in an almost arch shape, and has a front part and a lower part (bottom part) which are entirely open. The upper surface 9a is provided with a fastener 9b extending in the longitudinal direction. One end of each of the upper surfaces 9a, 9a 'and the side surface 9c are provided with surface mount fasteners 9d, 9d.
9e is provided, and a bag-like portion 9f for inserting the small bone member 6b is provided inside the upper surface portion (ceiling surface),
By opening the fastener 9b and the surface-attached fasteners 9d and 9e, it can be easily attached to and detached from the bone body 6. The hood 9 may be either transparent or opaque. Reference numeral 9h in FIG. 3 denotes a hole through which the lug 6c passes. In addition,
The back surface 9j of the hood body 9 has a shape in which the lower edge is cut out in a substantially arc shape corresponding to the cross-sectional shape of the ridge T (see FIGS. 7 and 8). Even when the hood 9 is closed with its lower part (opening bottom) close to the surface of the tea ridge, the front part is open, so that the inside of the hood 9 is not shut off from the outside air. No, it is possible to take in sufficient outside air. Hood body assembly 9 in which the above-mentioned nozzle-equipped tube 5, bone body 6 and hood body 9 are assembled.
A is shown in FIG. 1 and FIG. 8 shows the external appearance and use state of a medicine spraying apparatus in which the hood assembly 9A is attached to the handcart 1.

Next, a tilt adjusting mechanism (tilt adjusting means in the present invention) for bringing the hood body 9 into a desired tilt state will be described. FIG. 7 is a diagram illustrating the operation of the tilt adjustment mechanism. As shown in FIGS. 7 and 8, the tilt adjusting mechanism includes a bolt 8 a attached to a suspension lug 6 c having one end of a curved rod-shaped locking member 10 protruding above the hood 9, which is closer to the support 3 a. A strong magnet 10b is attached to the other end, which can be attracted to the iron plate inclination adjusting plate 3d. That is, the magnet 10
By sliding the end of the locking member 10 provided with the b on the surface of the tilt adjusting plate 3d to position the hood main body 9,
The tilt angle of the bolt 8a inserted through the center suspension lug 6c can be adjusted arbitrarily (steplessly) by rotating the bolt 8a about a substantially horizontal axis. In addition to the above-described example using the magnet 10b, a long hole or a plurality of holes are provided in the inclination adjusting plate 3d, and a bolt on the locking member 10 side is inserted through the hole to make the fixing position of the bolt variable. Any suitable positioning means can be used.

Since the hood 9 is maintained in its entire shape by the skeleton 6, the hood in the present invention can be considered as a concept including the skeleton 6. The hood 9 and the skeleton 6 may be integrally formed of a synthetic resin. In addition, the frame according to the present invention includes the frame 2 and the support 3.

Next, the mode of use of the above spraying device in a tea garden will be described. When spraying the medicine, first, the hood assembly 9A shown in FIG. 1 is hung on the hanging portion 3c of the support 3 to assemble the medicine spraying apparatus, and the coupler 5d is connected to an external hose of the spraying apparatus main body (not shown). Connecting. Then, by holding the handle 4 by hand, the wheel 2a is brought close to the tea ridge, and the suspension portion 3c, that is, the hood assembly 9
The frame 2 is supported such that the center of A comes to the center of the tea ridge (just above the top) and the tube with nozzle 5 extends in the transverse (right angle) direction of the tea ridge. Further, if necessary, the set screw 3e is loosened and the support 3 is raised and lowered to set the lower end of the hood body 9 so as to be close to or in contact with the upper surface of the brown ridge T. The adjustment of the fixing position raises and lowers one end of the hood assembly 9A, and sets the hood 9 and the like to an appropriate inclination corresponding to the posture of the tea ridge T (see FIGS. 7 and 8). When the preparation is completed in this way, the spraying device main body is operated, and the medicine is supplied to the nozzle tube 5.
While pushing the wheelbarrow 1 while spraying it in the form of a mist from the nozzle 5b, and advances along the tea ridge T at an appropriate speed.

At this time, as shown in FIGS. 8 and 9, the medicine is sprayed from the nozzle 5b toward the surface (leaf surface) of the tea tree in the space substantially surrounded by the hood body 9, so that the medicine is hardly affected by the wind. It is prevented from flying far beyond the ridge T. Further, since the skeleton 6 serves as a reinforcing rib and supports the sheet material of the hood 9, there is no inconvenience that the sheet material is attracted to the ejection port of the nozzle 5b. In addition, since the front part of the hood body 9 is in the open state, the outside air can sufficiently flow into the hood, and the spray state is stabilized.

By the way, the shape of a tea ridge is not normally symmetrical with respect to a vertical line on a slope, but in such a case,
By setting the tilt adjustment mechanism so that the hood body assembly 9A is tilted left and right in accordance with the shape of the tea ridge, it is possible to prevent the spray of the medicine from being biased to the side of the tea ridge T, Can be sprayed efficiently, so that the workability is not reduced as compared with a flat ground. The hood assembly 9A (especially, the shape of the lower edge of the hood 9 and the approximate arrangement of the nozzles 5b) has a substantially arch shape corresponding to the cross-sectional shape of the tea ridge T, and the hood assembly 9A is inclined. The spray state is substantially constant regardless of the angle, and the upper part, the left and right sides, and the rear of the nozzle 5b can be shielded, thereby preventing leakage (scattering) of the medicine. Further, in this medicine spraying device, since the support arm 3b overhanging above the tea ridge T supports the hood assembly 9A in a cantilever manner, it is easy to move through the space between the tea ridges T, and Since the U-turn can be easily performed, the medicine can be sprayed on the left and right tea ridges T in one reciprocation.

In this embodiment, the wheelbarrow is a unicycle, but may be a motorcycle. In addition, the present invention is not limited to a manual trolley, and can be applied to a passenger trolley. In addition, it is needless to say that the present invention can be implemented in various modified embodiments based on the knowledge of those skilled in the art.

[0023]

As described above, according to the present invention,
When spraying the drug on the crop, the sprayed drug is prevented from being scattered far away, and the influence on the environment can be further reduced. In addition, the workability of spraying the medicine is improved, and the medicine can be sprayed uniformly and uniformly, so that there is an effect that the amount of medicine used can be reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a hood assembly of a medicine spraying apparatus.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a perspective view illustrating a hood body.

FIG. 4 is a perspective view illustrating a skeleton.

FIG. 5 is a perspective view illustrating a tube with a nozzle.

FIG. 6 is a perspective view illustrating a handcart.

FIG. 7 is a diagram illustrating a tilt adjusting mechanism for tilting the hood assembly.

FIG. 8 is a perspective view illustrating a use mode of the medicine spraying device.

FIG. 9 is a cross-sectional view illustrating a spraying state of the medicine spraying device.

FIG. 10 is a diagram illustrating a conventional method of spraying a medicine.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Wheelbarrow 2 Frame 3b Support arm (support part) 5 Tube with nozzle 5b Nozzle 5c Hose 6 Bone body 9 Hood body 9A Hood body assembly T Tea ridge

Claims (3)

[Claims] 1. A hood body for use in a medicine spraying apparatus of a type in which a nozzle for spraying a medicine is supported above a crop and moved, the hood being configured to be attachable to the medicine spraying apparatus, and a lower end portion of the crop spraying apparatus. A hood body formed in a shape capable of covering the upper part, the left and right sides, and the rear of the nozzle in a state of being close to or in contact with the upper surface. 2. A wheel that can roll on the side of the crop, a frame that rises from the wheel, a nozzle for spraying a medicine supported by the frame above the crop, and a lower end attached to the frame. And a food body formed in a shape capable of covering the upper side, the left and right sides, and the rear side of the nozzle in a state of being brought close to or in contact with the upper surface of the crop. 3. The medicine spraying apparatus according to claim 2, further comprising a tilt adjusting means capable of tilting and holding the hood body.