JPH1075702A - Spray nozzle supporting structure for self-propelled sprayer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide the subject spray nozzle supporting structure capable of improving the efficiency of a spray operation by spraying to the back of leaves by one spray operation since the spray does not reach the back of leaves by spraying from above by a spray nozzle attached to a horizontal spray pipe from above in the spray operation for crops having large leaves such as tobacco. SOLUTION: A horizontal supporting lever 14 held on a self propelled sprayer is horizontally equipped with a main spray pipe 18 provided with downward spray nozzles 18a. An auxiliary spray pipe 19 can be vertically installed from any of the spray nozzles 18a and the bottom of the auxiliary spray nozzle 19 is furnished with a diagonally upward spray nozzle 19a.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled sprayer, for example, a type in which a chemical tank is mounted on a crawler-type or wheel-type traveling device, or connected to a separately installed chemical tank. The present invention relates to a support structure for an injection hole capable of spraying a crop upward and downward at the same time, such as a type in which a hose is wound up and travels while extending.

[0002]

2. Description of the Related Art Conventionally, a self-propelled sprayer in which a chemical solution tank is mounted on a crawler type or wheel type traveling device and an injection hole is supported at a rear end of a vehicle body is known. 5
9-27854, Heikai 4-957, Heihei 6-416
66, Japanese Utility Model Laid-Open No. 7-28376, Japanese Patent Laid-Open No. 7-255347
And the like. Among these, as for the support structure of the injection hole, two vertical spray pipes having an injection hole at the rear end of the vehicle body are provided in a pair on the right and left, or the vertical support pipe is provided with the injection hole. It is a structure that supports a horizontal spray tube. Some have a structure in which a vertical spray pipe having an injection hole is rotatable left and right to avoid uneven spray. Also, there is a type in which a hose is connected to a separately installed chemical solution tank, and the hose is wound up or unwound, and travels in a remote automatic control type. The same is true.

[0003]

The self-propelled sprayer itself can be applied to various spraying operations. However, depending on the object to be sprayed, the spraying operation is actually performed unless the support structure of the injection hole is changed in accordance with the spraying operation. Abnormal on the above. For example, when performing a spraying operation on cigarettes, simply spraying a chemical solution downward from above with a horizontal spray pipe has a problem that the chemical solution does not reach the leaves near the root because the leaves are large. In the case of spraying such crops, if a spray hole support structure is used in which spraying is performed simultaneously from above and below, work efficiency is improved.

[0004]

SUMMARY OF THE INVENTION The present invention uses the following means in a spray hole support structure of a self-propelled sprayer in view of the above problems in the spraying operation.
That is, in a self-propelled sprayer, a horizontal main spray pipe having a downward spray hole is supported, and a sub spray pipe having a spray hole at a lower end can be hung from any of the spray holes. Also,
The injection hole at the lower end of the sub spray tube is directed obliquely upward.

[0005]

Embodiments of the present invention will be described with reference to the accompanying drawings. FIG. 1 is a rear view of a self-propelled sprayer during a spraying operation employing an injection hole support structure of a type in which a sub spray tube 10 is suspended from a main spray tube 9 so that spraying from above and below can be performed simultaneously. FIG. 2 is a partial perspective view showing a folding mechanism of the main spray pipe 9 shown in FIG. 1, FIG. 3 is a front view of a self-propelled sprayer mounted with a chemical tank, FIG. 4 is a rear view thereof, and FIG. FIG. 6 is a plan view of the same, and FIG. 7 is a perspective view showing a spraying operation of a hose feeding type self-propelled sprayer.

First, there are two types of self-propelled sprayers that employ the injection hole support structure of the present invention. One is a type equipped with a chemical liquid tank shown in FIGS. 3 to 6, and the other is a hose extension type shown in FIG. The former is applied to spraying work with a person in front of the vehicle body as the vehicle travels, and the vehicle body is equipped with a chemical solution tank, and the chemical solution or water in the mounted chemical solution tank is injected from the injection hole. Spray it. The latter is in the house
The unmanned operation is promoted in the entire process, and the sprayer is provided with a drive device on the vehicle body itself or is driven by remote control. For example, in FIG. 7, when the sprayer A moves in the front-rear direction, it is driven by its own driving device, and when it moves in the lateral direction, the sprayer A The sprayer A is mounted, a wire W is connected to a truck B from a winch C, and the truck B is pulled. The chemical solution tank T 'is separately installed, and the hose H is connected to the sprayer A via the hose winding machine D from the chemical solution tank T', and the sprayer A (or the cart B) is moved. The hose H is wound up and fed out.

The injection hole support structure according to the present invention shown in FIGS. 1 and 2 is employed in a self-propelled sprayer mounted on a chemical liquid tank shown in FIGS. It may be used for a type.

The structure of a self-propelled sprayer mounted on a chemical tank will be described with reference to FIGS. First, as a traveling device, rolling wheels 7 and 8 and an idler 9 are suspended on the left and right sides of the traveling frame 1, and the driving sprockets 6 are disposed on the left and right sides of a traveling mission case M disposed immediately before the traveling frame 1.
And a crawler 10 is wound around a drive sprocket 6, rolling wheels 7, 8 and an idler 9 disposed on the same side.

A power section support frame 11 is provided above and in front of the traveling frame 1 to extend therefrom.
An engine E and a dynamic injection P are mounted on 1. A handle 12 is provided upright from the power support frame 11 to an upper portion of the engine and the dynamic jet P, and an operation box 13 having several levers is disposed above the handle 12. A chemical solution tank 1 is mounted on the traveling frame 1 behind the power unit formed in this manner, and an injection hole support 2 is erected from the rear end of the traveling frame 1 behind the chemical solution tank T, A chemical solution outlet 5 from the chemical solution tank T is provided near the base end of the injection hole support 2, and a chemical solution hose 20 (shown in FIGS. 1 and 2) extending from a main spray pipe 18 described below. ) Are connected. A vertical stay 3 for attaching a support rod 14 and a spray pipe, which will be described later, is externally slidably mounted on the injection hole support 2 so as to be slidable up and down.

In the spraying operation, the operator operates the steering wheel 12 and operates levers while standing in front of the running vehicle body and watching the spraying state of the injection holes supported by the rear spraying column 2. To carry out the spraying operation. Of course, with the remote control type, the operator can control the traveling and spraying without being near the vehicle body.

The injection hole support structure of the present invention will be described with reference to FIGS. Vertical stay 3 externally fitted to injection hole support 2
Is provided with a horizontal stay 14, and at both ends of the horizontal stay 14, a base end 15 a of a horizontal support rod 15 is pivotally supported by a pivot bolt 16 so as to be able to rotate back and forth in the horizontal direction. ing. Base end 1 of horizontal stay 14 and horizontal support rod 15
5a, a spring 17 is straddled.
The horizontal support rod 15 can be switched between a state in which the horizontal support rod 15 is spread to both sides as shown in FIG. 1 and a state in which the horizontal support rod 15 is folded forward as shown in FIG. When the horizontal support rod 15 is folded in this manner, the main spray pipe 18 attached thereto is also folded at the same time as described later.

The horizontal main spray pipe 15 is provided with a main spray pipe 18 in parallel, and the main spray pipe 18 is provided with a plurality of injection holes 18a, 18a,. For example, as shown in FIG. 1, the spray can be applied from above a crop such as a cigarette. However, tobacco and the like have large leaves, and the chemical does not adhere to the back of the leaf near the root. Therefore, the auxiliary spray pipe 19 can be provided vertically from any one of the injection holes 18a. An injection hole 19a is attached to the lower end of the sub spray tube 19, and the injection hole 19a is directed obliquely upward, sprays a chemical from below, and attaches the chemical to the back of the leaf. I have. If the injection hole 19a is directed downward,
At the same time as spraying the crop from above, it is possible to perform a spraying operation on the ground surface (for example, removal of undergrowth).

The sub-spray tube 19 may be made of an elastic material such as a rubber hose for buffering the leaves and the like. If there is no such possibility, a rigid material such as a steel tube is used. It is also conceivable to configure.

[0014]

According to the present invention, since the injection hole supporting structure of the self-propelled sprayer is as described above, the following effects can be obtained. That is, by configuring as in claim 1, it is possible to simultaneously perform spraying from above the crop at the injection hole of the main spray pipe, and spraying at the root portion at the injection hole of the auxiliary spray pipe. And the spraying efficiency is improved. Further, as in claim 2,
By making the injection hole of the secondary spray pipe obliquely upward, for example, in a large leaf crop such as a cigarette, from above, the chemical solution is sprayed downward from the horizontal main spray pipe injection hole,
The chemical can be sprayed upward from below through the injection hole of the auxiliary spray tube to reach the back of the leaf.

[Brief description of the drawings]

FIG. 1 is a rear view of a self-propelled sprayer during a spraying operation employing an injection hole support structure of a type in which a sub spray tube 19 is suspended from a main spray tube 18 so that spraying from above and below can be performed simultaneously. FIG.

FIG. 2 is a partial perspective view showing a folding mechanism of a main spray pipe 18 (horizontal support rod 15) shown in FIG.

FIG. 3 is a front view of a self-propelled sprayer mounted on a chemical liquid tank.

FIG. 4 is a rear view of the same.

FIG. 5 is a side view of the same.

FIG. 6 is a plan view of the same.

FIG. 7 is a perspective view showing a spraying operation of a hose extension type self-propelled sprayer.

[Explanation of symbols]

 DESCRIPTION OF REFERENCE NUMERALS 1 traveling frame 2 injection hole support 3 vertical stay 4 fixing screw 14 horizontal stay 15 horizontal support rod 15a base end 16 pivot support bolt 17 spring 18 main spray pipe 18a injection hole 19 auxiliary spray pipe 19a injection hole

Claims (2)

[Claims] In a self-propelled sprayer, a horizontal main spray pipe having a downwardly directed injection hole is supported, and a sub spray pipe having an injection hole at the lower end can be hung from one of the injection holes. An injection hole support structure for a self-propelled sprayer. 2. The injection hole support for a self-propelled sprayer according to claim 1, wherein the injection hole at the lower end of the auxiliary spray pipe is directed obliquely upward. Construction.