JP3513628B2 - Spraying device for chemicals on tea plant - Google Patents

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 for tea trees, which sprays the chemicals on tea trees in order to exterminate or control helminths and the like adhering to branches of tea trees. In particular, the present invention relates to an apparatus for spraying a drug on a tea plant, which is adapted to simultaneously spray a drug on two adjacent rows of ridge tea plants.

[0002]

2. Description of the Related Art In controlling or controlling helminths and the like adhering to the branches of tea plants, simply spraying a drug onto the tea plants from above the tea plants has little effect. Most of the chemicals sprayed on the tea tree from above the tea tree adhere to the tea leaves on the surface of the tea tree, and the drug cannot reach the ostracods present on the branches inside the tea tree. Therefore, when exterminating or controlling helminths and the like attached to the branches and the like of tea plants, a method of inserting a long nozzle in a drug spraying device into the tea plants and spraying the drug is generally adopted.

[0003]

However, in the method of spraying the drug by inserting a long nozzle into the tea plant in the drug spraying device, it is not possible to spray the drug evenly throughout the tea plant, but There is a problem that the spraying work is inefficient and it takes a long time to spray the medicine. Therefore, the present invention has been made in order to provide a spraying device capable of spraying a drug evenly and efficiently in tea plants.

[0004]

In order to solve the above-mentioned problems, according to the present invention, a pair of substantially arc-shaped substrates are connected to each other by an upper first connecting rod and a lower second connecting rod. The lengths of the first connecting rod and the second connecting rod are adjustable, and the ends of the connecting rods are rotatably attached to the substantially arcuate substrates, and elastic between the pair of substantially arcuate substrates. (EN) Provided is a spraying device for chemicals on tea plants, in which a plate is attached in a curved state, a large number of nozzles are provided on the lower surface of each substantially arcuate substrate, and the chemicals are supplied to each nozzle. 1).

It is preferable that the elastic plate is disposed below the upper first connecting rod, and the first connecting rod and the elastic plate are connected by a retractable third connecting rod (claim 2).

[0006]

[Action]

[Spraying device according to claim 1] When spraying a drug into tea plants using the spraying device according to claim 1, a state in which a pair of substantially arc-shaped substrates are applied to the upper surfaces of two adjacent rows of ridge tea plants. The chemicals may be sprayed from each nozzle while moving the spraying device along the tea plant. If each substantially arcuate substrate is applied to the upper surface of the tea plant, a large number of nozzles protruding from the lower surface of the substantially arcuate substrate will be immersed in the tea plant respectively.In this state, while moving the spraying device along the tea plant, If the drug is sprayed, the drug will be evenly and continuously sprayed inside the tea plant. Therefore, ostracods and the like attached to the branches and the like inside the tea plant are completely exterminated or controlled.
Further, the substantially arcuate substrate serves to reduce the burden on the operator by applying the weight of the spraying device to the tea plant and prevent the chemicals from scattering upward during the spraying. As an example, the substantially arcuate substrate of the spraying device covers about half of the tea plant on each ridge, and in this case, the spraying work is performed on each half of the tea plant on each ridge.

Therefore, in the spraying device of the first aspect, the pair of substantially arcuate substrates are connected to each other by the upper first connecting rod and the lower second connecting rod, and the first connecting rod and the second connecting rod are connected to each other. Each end of the connecting rod is pivotally attached to each substantially arcuate substrate. That is, the spraying device is like a four-bar linkage device, and when a pair of substantially arcuate substrates are placed on the upper surfaces of two adjacent rows of ridge tea plants, each substantially arcuate substrate is the weight of the spraying device. The tree is deformed according to the tree shape including the tree height (see symbols H and H'in FIG. 5) and the height of the skirt (see symbols h and h'in FIG. 5) against the force of the elastic plate. Conforms to the upper surface of.
When the tree shapes of the respective ridges that are simultaneously sprayed by the spraying device are asymmetrical, the spraying device is deformed asymmetrically according to the tree shape of each ridge. By the way, an elastic plate is attached in a curved state between the pair of substantially arcuate substrates.
Since this elastic plate is attached in a curved state, it tends to always be straight. Therefore, after the spraying device is deformed according to the tree shape of each ridge, when the operator restores the spraying device to the original shape, the elastic plate acts in the direction of returning the spraying device to the original shape. Further, the lengths of the first connecting rod and the second connecting rod are adjustable. Therefore, by adjusting the lengths of the first connecting rod and the second connecting rod, the spraying device can be made to correspond to the difference between the ridges (see symbol D in FIG. 6) and the tree shape of each ridge. . Since the elastic plate is plate-shaped, it prevents twisting of the spraying device in the left-right direction.

[Spraying device of claim 2] The third connecting rod in the spraying device of claim 2 expands and contracts according to the change in the distance between the first connecting rod and the elastic plate due to the deformation of the spreading device. Therefore, the third connecting rod does not affect the deformation and restoration of the elastic plate. In addition, the third connecting rod effectively prevents twisting of the spraying device by connecting the first connecting rod and the elastic plate.

[0009]

Embodiments of the present invention will now be described with reference to the accompanying drawings. The spraying device of the present invention comprises a pair of substantially arc-shaped substrates 3 and 3 which are fitted to the surfaces of tea plants 1 and 1 '. The pair of substantially arcuate substrates 3, 3 are connected to each other by the upper first connecting rod 5 and the lower second connecting rod 7. The lengths of the first connecting rod 5 and the second connecting rod 7 are adjustable, and the ends of the connecting rods 5 and 7 are pivotally attached to the substantially arcuate substrates 3 and 3, respectively. In making the length of the first connecting rod 5 adjustable, as an example, the left and right ends of the first connecting rod 5 are connected to the screw rods 5a and 5b having different screw directions via a turnbuckle 5c. To configure each. In order to make the length of the second connecting rod 7 adjustable, as an example, the second connecting rod 7 is configured to connect the screw rods 7a and 7b having different screw directions via a turnbuckle 7c. It shall be. Each end of the first connecting rod 5 and the second connecting rod 7 is connected to each of the substantially arc-shaped substrates 3,
When pivotally rotatably attached to the connector 3, as shown in FIGS. 3 and 1, for example, the ends 5 of the connecting rods 5 and 7 are connected.
It is assumed that a (7a) is attached to each substantially arcuate substrate 3 via the hinge 9. Further, the elastic plate 11 is attached in a curved state between the pair of substantially arcuate substrates 3 and 3. This elastic plate 11
Is a leaf spring formed of a stainless steel plate as an example. Each end of the elastic plate 11 is fixed to each substantially arcuate substrate 3 by using fasteners 13 such as screws. Furthermore, a large number of nozzles 15,
15 ... are provided so as to supply the medicine to each nozzle 15, 15. Reference numerals 17, 19, and 21 are drug supply pipes, and reference numeral 23 is a valve.

It is desirable that the elastic plate 11 is arranged below the upper first connecting rod 5 and that the first connecting rod 5 and the elastic plate 11 are connected by a retractable third connecting rod 25. To make the third connecting rod 25 extendable, as shown in FIG. 4 as an example, the third connecting rod 25 is connected to the hollow pipe 25a.
The small diameter pipe 25b is slidably fitted into the hollow pipe 25
a is fixed to the first connecting rod 5, and the small diameter pipe 25b is attached to the elastic plate 1.
Fixed to 1.

In the case shown in FIGS. 1 and 2,
The main handle 31 of the spraying device is attached to the third connecting rod 25, and the auxiliary handle 33 is attached to the first connecting rod 5. The main handle 31 is rotatable in the horizontal direction by the mounting portion 31a, and is rotatable in the vertical direction by the connecting portion 31b. The auxiliary handle 33 is vertically rotatable by the mounting portion 33a.

[0012]

【The invention's effect】

[Spraying device of claim 1] According to the spraying device of claim 1,
In the work of exterminating or controlling helminths and the like adhering to the branches and the like of tea trees, the chemicals can be evenly and efficiently applied to the tea trees in a short time. Since the weight of the spraying device is applied to the tea plant through the substantially arcuate substrate, the burden on the operator is reduced. Further, the substantially arcuate substrate prevents the drug from scattering upward. Furthermore, when a pair of substantially arcuate substrates are placed on the upper surfaces of adjacent two rows of ridge tea trees, each substantially arcuate substrate resists the force of the elastic plate due to the weight of the spraying device and the tree height and the skirt. It deforms according to the tree shape, including the height of the part, and fits on the upper surface of the tea plant. After the spraying device is deformed according to the tree shape of each ridge,
When the operator restores the spraying device to the original shape, the elastic plate acts in a direction to restore the spraying device to the original shape. By adjusting the lengths of the first connecting rod and the second connecting rod, it is possible to adapt the spraying device to the difference between the ridges and the tree shape of each ridge.
Since the elastic plate is plate-shaped, it prevents twisting of the spraying device in the left-right direction.

[Spraying device of claim 2] The third connecting rod in the spraying device of claim 2 expands and contracts according to the change in the distance between the first connecting rod and the elastic plate due to the deformation of the spreading device. Therefore, the third connecting rod does not affect the deformation and restoration of the elastic plate. In addition, the third connecting rod effectively prevents twisting of the spraying device by connecting the first connecting rod and the elastic plate. In other respects, the spraying device of claim 2 exhibits the same effect as the spraying device of claim 1 described above.

[Brief description of drawings]

FIG. 1 is a front view showing an example of a spraying device according to the present invention.

FIG. 2 is a plan view of the spraying device.

FIG. 3 is a front view showing each end of the first connecting rod or the second connecting rod and a substantially arcuate substrate.

FIG. 4 is a front view showing a third connecting rod.

FIG. 5 is a front view showing an example of a usage state of the spraying device according to the present invention.

FIG. 6 is a front view showing another example of the usage state of the spraying device according to the present invention.

[Explanation of symbols]

1 tea plant 1'tea tree 3 Substrate arcuate substrate 5 First connection rod 5a screw rod 5b screw rod 5c turnbuckle 7 Second connection rod 7a screw rod 7b screw rod 7c turnbuckle 9 hinges 11 Elastic plate 13 Fastener 15 nozzles 17 Drug supply pipe 19 Drug supply pipe 21 Drug supply pipe 23 valves 25 Third Consolidated Rod 25a hollow tube 25b small diameter pipe 31 Main handle 31a mounting part 31b connection part 33 Auxiliary handle 33a mounting part

Claims (2)

(57) [Claims] 1. A pair of substantially arcuate substrates are connected to each other by an upper first connecting rod and a lower second connecting rod, and the first connecting rod and the second connecting rod are each adjustable in length. At the same time, each end of each of the connecting rods is rotatably pivoted to each of the substantially arcuate substrates, and an elastic plate is attached between the pair of substantially arcuate substrates in a curved state. The device for spraying chemicals on tea plants, wherein the nozzles are provided so as to supply the chemicals to each nozzle. 2. The elastic plate is disposed below the upper first connecting rod, and the first connecting rod and the elastic plate are connected by a telescopic third connecting rod. 1 is a spraying device for chemicals on tea plants.