JP2867355B2 - Pest control machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention
Related to pest control equipment.

[0002]

2. Description of the Related Art Conventionally, when a pest control operation for a fruit tree or the like is performed while traveling, a self-propelled control apparatus such as a speed sprayer, a boom sprayer towed by a tractor, or a pest control apparatus mounted on a traveling vehicle is used. It is known that these control devices include an engine, a chemical solution tank, a pump, a nozzle, a blower, etc., and a chemical solution in the tank is sucked and pressurized by a pump, sprayed from the nozzle, or further blower. It was configured to blow up and spray from below the fruit tree. Further, as in the technique described in Japanese Utility Model Application Laid-Open No. 5-13569, a nozzle support frame for supporting a plurality of nozzles is substantially perpendicular to the work traveling direction, and the nozzle support frame is divided into two to form a right half dispersion cloth nozzle. A support frame, a nozzle support frame for the left half-dispersed cloth is configured, and each of the nozzle support frames is provided in the front-back direction in the body traveling direction, and the left and right nozzle support frames are respectively provided by the front-rear direction driving device and the circumferential direction driving device. BACKGROUND ART Pest control devices capable of swinging in the front-rear direction and the circumferential direction of a spray discharge section are known. Further, as in the technique described in Japanese Utility Model Laid-Open Publication No. 4-50154, a support nozzle provided on a traveling body is provided with a support nozzle for spraying a medicine laterally with respect to a traveling direction of the traveling body. Is supported on a support frame provided on the traveling body so as to be rotatable in the left-right direction, and a rotating arm having a spray nozzle at both ends is supported so as to be rotatable up and down with respect to the support mast, and the support mast is 2. Description of the Related Art A pest control device is known in which a left-right rotation mechanism and a vertical rotation mechanism of a spray nozzle are linked so as to interlock with each other, and a tip end of the spray nozzle is rotated.

[0003]

However, in the prior art, the chemical sprayed from the nozzle is blown up by the wind force of the blower and adheres to the fruit tree. However, since the spray direction of the chemical is constant. The chemical solution adhered to only one surface or the back surface of the fruit tree leaves in one direction, resulting in a portion that became uneven in spraying. Further, since the blower has a large load and requires an engine having a high horsepower, the cost increases and the noise is generated. Further, in the technology described in Japanese Utility Model Laid-Open No. Hei 5-13569, since the left and right nozzle support frames that support a plurality of nozzles are provided at the front and rear in the body advancing direction, the front and rear length of the body is correspondingly increased. When the vehicle turns, the trajectory of the outermost body portion located at the time of turning becomes large, and when the space between the trees is narrow, the body may contact or collide with a tree, and may damage the body or the tree. Left and right nozzle support frame
Are driven by a longitudinal drive and a circumferential drive, respectively.
Swing in the longitudinal direction of the airframe and in the circumferential direction of the spray discharge section
Although it has a structure, the front-rear direction
When swinging the nozzle, the swing amount of the nozzle located at the center of the aircraft
Is smaller than the swing amount of the nozzle located on the side of the nozzle.
(The nozzle trajectory becomes smaller)
The trajectory of the nozzle located at the center of the body is a trochoid curve
It is said that it does not become linear but becomes wavy, causing uneven distribution
There is a defect. On the other hand, from the nozzle located in the center of the fuselage
The trochoid curve is also obtained for the nozzle locus located on the side.
A moving area in which the nozzle moves forward,
The moving area where the nozzle moves rearward partially overlaps
Scattered nozzle trajectory
There is a problem that unevenness occurs. 4-5015
Also in the technology described in Japanese Patent Publication No. 4 (1994), since only a nozzle for spraying the medicine in the lateral direction with respect to the traveling direction of the traveling body is used, effective control can be performed on standing trees. There is a problem that it cannot be sprayed upward and an effective control work cannot be performed. Accordingly, the present invention is controlling the without using the blower, it is possible to enhance the adhesion performance of the chemical liquid can be reliably sprayed to fruit trees to prevent excessive splashing of liquid
The purpose is to configure the machine .

[0004]

The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described. That is, the present invention arranges a plurality of nozzles capable of spraying a medicine upward and to the left and right sides with respect to the machine body so as to be substantially orthogonal to the work traveling direction and positioned substantially on the same plane, The nozzle is configured to be drivable by synchronizing the front-rear swing mechanism and the left-right swing mechanism, and is configured such that the plurality of nozzle trajectories have a trochoid curve in a working state.

[0005]

Next, the operation will be described. The chemical solution in the tank T is sucked and pressurized by the dynamic jet D, and the nozzles 1, 1... When controlling the fruit tree by spraying from the eccentric shaft 2 by driving the motor M
When the eccentric shaft 23 is rotated, the portion of the pivot portion 15b on which the eccentric shaft 23 is pivoted makes a circular motion, and the pivot portion 15a on which the pivot shaft 5a of the left-right rotating stay 5 is pivoted swings left and right. In this state, the link plate 15 swings right and left, and the lower end 16a of the joint 16 performs an elliptical motion. The link plate 1
5 swings left and right and the left and right rotating stay 5 swings right and left, the nozzle supporting frame 10 with the left and right rotating shaft 7 as a fulcrum.
Swings from side to side, and the nozzles 1.1,.
Swings from side to side. Also, the lower end 16 of the joint 16
When a moves elliptically, the joint 16 moves up and down, and the upper end 16b of the joint 16 is pivotally connected to the connecting plate 17.
Is pivoted up and down, and the pivot link 3 pivots back and forth about the pivot shaft 8 as a fulcrum via the connecting plate 17, and the nozzle link 4
4 swing back and forth, and the nozzles 1... Swing back and forth with the nozzle rotation shaft 11 as a fulcrum. In this way, nozzle 1
1... Simultaneously swing back and forth and left and right, so that the nozzles 1.

[0006]

Next, an embodiment will be described. FIG. 1 is an overall front view showing an embodiment of a control nozzle of the present invention, FIG. 2 is an overall side view thereof, FIG. 3 is a front view showing a state in which a link plate 15 swings right and left, and FIG. FIG. 5 is a side view showing a state where the nozzle N swings back and forth, FIG. 5 is a front view showing a state where the nozzle link 4 slides, and FIG. 7 is a plan view showing a state in which the nozzles 1.1 of the nozzle N are arranged in a staggered manner, and FIG.
FIG. 9 is a view showing the whole spray state by 1 · N2 · N3, and FIG.
FIG. 10 is a diagram showing a state of spraying on both sides by the nozzles N2 and N3, FIG.
FIG. 11 is a diagram showing a one-side spray state by the nozzle N2, and FIG.
Is a diagram showing trajectories of the nozzles N1, N2, and N3 during operation;
FIG. 12 is a plan view showing a state in which the nozzles 1, 1,...

In FIG. 1 and FIG. 2, a plurality of nozzles 1.
Are arranged in a fan shape when viewed from the front, and are erected on the upper surface of the spout bases 2..., Each of the spout bases 2. , And are arranged in a fan shape when viewed from the front. First, the nozzles 1.1
In the center of the lower surface of the nozzle base 2, the nozzle links 4 are projecting in parallel to the center (in the direction of the left-right rotation shaft 7) at the front-rear position via a fixing member 21. A nozzle rotation stay 9 is fixedly provided on the front side. A substantially semicircular oscillating link 3 arranged in the left-right direction is inserted between the nozzle links 4, 4. Both ends of the oscillating link 3 are It is fixed.

The front-rear rotation shaft 8 is rotatably mounted on pivot supports 12a on the rotation support frames 12, 12 so as to be rotatable.
The lower end is attached and fixed at the position on the rear left and right upper surfaces of the nozzle set table 20. A connecting plate 17 is fixed to a middle part of the front-rear rotation shaft 8 so as to protrude forward.
Are pivotally connected, and the lower end 16a of the joint 16 is
Are pivotally connected to a middle part of the link plate 15. The lower end portion 16a and the distal end portion 16b are constituted by a spherical joint or the like, and are rotatable forward, backward, left and right.

Next, a description will be given of a mechanism for rotating the nozzles 1 left and right. The nozzle rotating stay 9 is provided with a nozzle rotating shaft 11 which extends in the left and right direction. The shaft 11 is rotatably supported by a shaft support portion 13b of a pedestal 13. The shaft support portion 13b is fixed to a distal end portion of a connecting arm 13a which is bent rearward in an inverted L-shape on the pedestal 13 and is erected. I have. The pedestal 13 is mounted on the nozzle support frame 10.
The nozzle support frame 10 is attached and fixed to
It is substantially trapezoidal when viewed from the front.
・ Fix 13 ・ 13 and fix each pedestal 13 ・ 13
13 are provided with orifices 1.1.1 and 1 respectively, and nozzles N are configured as a set of three orifices. Further, a middle nozzle N1, a left nozzle N2, and a right nozzle N
Three sets of three nozzles are configured.

At the center of the lower surface of the nozzle support frame 10, a left-right rotating stay 5 is suspended, and a left-right rotating shaft 7 is mounted on the left-right rotating stay 5 in the front-rear direction. . The left and right rotation shaft 7 is supported by a shaft support 14 a fixed on the upper surface of the rotation support table 14.
Is attached and fixed to the front center upper surface position of the nozzle set table 20. The rear side of the left-right rotating stay 5 is extended downward, and a pivot shaft 5a is protruded rearward at the tip of the stay 5 so that the pivot shaft 5a is attached to one end of the link plate 15. It is pivotally supported by the provided pivotal support 15a. The other end of the link plate 15 is provided with a pivotal support 15b, and the eccentric shaft 2 is fixed to the drive shaft 22 of the motor M.
It is pivoted to 3.

In this embodiment, the nozzles 1 1...
Are divided into three as one set of three nozzles to form a middle nozzle N1, a left nozzle N2, and a right nozzle N3, but the number of nozzles 1 and nozzles N is not particularly limited, and two nozzles or four nozzles are provided. , Two nozzles, four nozzles, etc., can be arranged in a fan shape. In addition to the structure in which the nozzles 1, 1,... Are erected in a fan shape, the nozzles 1, 1,. It is also possible to adopt a structure of disposing in the horizontal direction.

As shown in FIG. 3, when the motor M is driven to rotate the eccentric shaft 23, the pivot portion 15b of the link plate 15 makes a circular motion, and the pivot portion 15a swings right and left. As the link plate 15 swings left and right, the lower end 16a of the joint 16 moves elliptically (in front view). When the link plate 15 swings left and right, the left and right rotation stays 5 swing left and right, and the nozzle support frame 10 swings left and right around the left and right rotation shaft 7 as shown in FIG. The N nozzles 1, 1 ... swing right and left.
Further, as the lower end 16a of the joint 16 performs an elliptical motion, the joint 16 moves up and down, as shown in FIG. 5, and the connecting plate 17 to which the upper end 16b of the joint 16 is pivoted rotates up and down. The swing link 3 swings back and forth with the rotation shaft 8 as a fulcrum, the nozzle link 4.4 swings back and forth, and the nozzles 1.1 of the nozzle N swing back and forth with the nozzle rotation shaft 11 as a fulcrum. Rocks.

At this time, a sliding portion S is provided at an engaging portion between the swing link 3 and the nozzle link 4.4, and as shown in FIG. When swinging, the nozzle links 4 slide in the left and right directions on both the front and rear sides of the swing link 3, and as shown in FIG.
When the nozzle swings back and forth, the nozzle links 4.4
Are configured to slide vertically on both sides of the swing link 3, and the nozzles 1.1 of the middle nozzle N1, the left nozzle N2, and the right nozzle N3 integrally swing right and left, and .. Of the nozzle N1, the left nozzle N2, and the right nozzle N3 swing back and forth, and when they are combined, the rotation trajectory of the nozzle 1 becomes a circle or an ellipse.

As shown in FIG. 6, the length of the contact point between the swing link 3 and the nozzle link 4.4 is different between the left and right and the center. That is, the distance A between the nozzle links 4.4 of the left and right nozzles N2 and N3 to the contact point of the swing link 3 is
It is shorter than the distance B between the nozzle link 4 of the middle nozzle N1 and the contact point of the swing link 3. This is because the distance L1 from the left and right contact points to the center of the front-rear rotation shaft 8 is shorter than the distance L2 from the center contact point to the center of the front-rear rotation shaft 8, so that the swing width of the swing link 3 is Since both sides are small and the center is large, the contact point is located on the rotation fulcrum side to increase the swing width of the nozzle links 4 on both sides, and the nozzle N
.. Of the nozzles 1, N 2, N 3 are kept constant. In addition, contrary to the above, by adjusting the link ratio, the nozzles N1 and N1
It is also possible to separately change the front-back swing amount of the 2.N3 injection ports 1,.

The nozzles N1, N2,.
.. Are mounted on a traveling vehicle C together with a tank T, a dynamic injection D and an engine E as shown in FIG. 12, for example, as shown in FIG.
When controlling pears and grape fruit trees, the chemicals in the tank T are sucked in by the dynamic jet D and pressurized by pressurizing the nozzles N1 and N2.
· · · Spraying can be performed by spraying from all the nozzles 1 · 1 · · · · · of N3, however, in this case, it is more efficient to arrange the nozzles 1 · 1 · · · in the horizontal direction Can be sprayed well. As shown in FIG. 9, when controlling trees U and U such as apples, spraying upward is not necessary. Therefore, spray hoses are connected to the left and right nozzles N2 and N3 (or a spray valve or the like). Open and close the cock etc.),
It is configured such that a chemical solution can be sprayed in the left-right direction. Further, as shown in FIG. 10, when controlling the tree U on only one side, a spray hose is connected only to the nozzle N2 on only one side so that the spraying operation can be performed.

In the above-mentioned spraying operation, FIG.
Are arranged at positions orthogonal to the working direction H and swing back and forth and right and left to form the nozzles N1. A circular (elliptical) motion is performed every N2 and N3, and a trochoidal curve is formed in combination with the forward movement of the vehicle. Also, as shown in FIG. 7, the number of the nozzles 1,... Can be increased by arranging the nozzles 1, 1,. Can be released,
The turbulence of the spray mist can be prevented, and the performance of adhering the chemical to the fruit tree can be improved. In this embodiment, the present invention
Is used in a pest control device mounted on the traveling vehicle C, but can also be used in a self-propelled pest control device or a traction control device towed by the traveling vehicle.

[0017]

As described above, the present invention has the following advantages. That is, since the trajectory of the plurality of nozzles can be driven by synchronizing the back and forth swing mechanism and the left and right news mechanism, the medicine is sprayed in the front and rear and left and right directions, so that the medicine is not only on the front surface of the fruit tree leaf but also on the back surface. Since it is not necessary to blow up the medicine by the wind force of the blower to enhance the adhesion performance, the blower can be omitted, and the front and rear length of the body can be shortened by the amount of the blower. In addition, a plurality of nozzles capable of spraying the medicine upward and to the left and right sides with respect to the aircraft are substantially orthogonal to the work progress direction,
And by arranging it so that it is located in approximately the same plane,
Compared with the conventional one in which the nozzle support frame divided into two is provided in the front-back direction in the body traveling direction, the front-rear length of the body can be shortened, and the movement locus of the outermost body part at the time of turning can be reduced. It is possible to reduce the possibility that the airframe contacts or collides with the tree and damages the airframe or the tree as compared with the related art. In the working state,
Since the plurality of nozzle trajectories capable of spraying the medicine upward and to the left and right are configured to have a trochoidal curve shape, effective control with less unevenness in spraying can be performed even in a shelf operation as compared with the conventional one.

[Brief description of the drawings]

FIG. 1 is an overall front view showing an embodiment of a control nozzle according to the present invention.

FIG. 2 is an overall side view of the same.

FIG. 3 is a front view showing a state in which a link plate 15 swings right and left.

FIG. 4 is a front view showing a state in which a nozzle N swings right and left.

FIG. 5 is a side view showing a state in which the nozzle N swings back and forth.

FIG. 6 is a front view showing a state in which the nozzle link 4 slides.

FIG. 7 is a plan view showing a state in which the nozzles 1,... Of the nozzles N are arranged in a staggered manner.

FIG. 8 is a view showing a whole spray state by nozzles N1, N2, and N3.

FIG. 9 is a diagram showing a state of spraying on both sides by nozzles N2 and N3.

FIG. 10 is a diagram showing a one-side spray state by a nozzle N2.

FIG. 11 is a diagram showing trajectories of nozzles N1, N2, and N3 during operation.

FIG. 12 is a plan view showing a state in which the nozzles 1, 1,... Of the nozzles N are mounted on a traveling vehicle C.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Injection port 2 Injection stand 3 Swing link 4 Nozzle link 5 Left and right rotation stay 6 Front and rear rotation stay 7 Left and right rotation axis 8 Front and rear rotation axis 9 Nozzle rotation stay 10 Nozzle support frame 11 Nozzle rotation axis 15 Link plate 16 Joint N nozzle

Claims (1)

(57) [Claims] 1. A plurality of nozzles capable of spraying a medicine upward and to the left and right with respect to an airframe are disposed so as to be substantially orthogonal to a working direction and substantially on the same plane. A pest control device characterized in that the front and rear oscillating mechanism and the left and right oscillating mechanism are synchronized to be driven, and the plurality of nozzle trajectories are formed in a trochoid curve in a working state.