JP2967549B2 - Spray direction control device for speed sprayer - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a spray direction control device for a speed sprayer.

[Conventional technology]

When spraying a chemical solution or the like on a slope using a speed sprayer, generally, the body of the speed sprayer travels on a horizontal road along the contour line of the slope ground, and the traveling direction of the machine is appropriately reversed, and the adjacent contour lines are sequentially turned off. While moving to a horizontal path along the road, chemicals and the like are sprayed toward trees and the like above and below both sides of the horizontal path.

Therefore, every time the traveling direction of the body of the speed sprayer is reversed, it is switched which of the right side and the left side of the body travels on the mountain side (or the valley side). Therefore, in order to maintain a desired spraying direction on trees and the like on both sides of the traveling path and spray an appropriate chemical solution or the like, spraying is performed from one side group of spray nozzles with respect to the center line of the body of the speed sprayer. It is necessary to be able to independently adjust the spray angle of the chemical solution or the like to the machine body and the spray angle of the chemical solution or the like sprayed from the spray nozzles of the other side group to the machine body.

Therefore, conventionally, a speed sprayer which can independently adjust these spray angles and can spray an appropriate chemical solution or the like even on an inclined ground has been provided (for example, see Japanese Utility Model Publication No. Sho 63-30516).

[Problems to be solved by the invention]

However, in the conventional speed sprayer as described above, an operation switch for adjusting the spray angle of one side group and an operation switch for adjusting the spray angle of the other side group are simply provided, respectively, and in accordance with the operation of each operation switch. Since each of the spray angles was only configured to be adjusted separately, when spraying a chemical solution or the like on an inclined ground, every time the traveling direction of the body of the speed sprayer is reversed as described above, each time. By operating each of the operation switches, the spray angle must be readjusted in the opposite direction, and the operability is extremely poor. For this reason, the driver cannot pay attention to the operation of adjusting the spraying angle and cannot concentrate on the driving operation of the aircraft, which may cause an accident such as pinching the neck between the overhead branches. Had occurred.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a spraying direction control device of a speed sprayer that has good operability of a spray angle adjustment operation when spraying a chemical solution or the like on an inclined ground.

[Means for solving the problem]

In order to solve the above-mentioned problem, the present invention provides a first adjusting mechanism capable of adjusting an angle of a side group of spray nozzles with respect to the body of a speed sprayer with respect to a center line of the body,
A second adjusting mechanism that can adjust an angle of the spray nozzles of the other side group with respect to the body with respect to the center line, a first actuator that operates the first adjusting mechanism, and operates the second adjusting mechanism. A second actuator, a first setting means for outputting a first spray angle setting signal according to a user operation, and a second setting means for outputting a second spray angle setting signal according to a user operation. Setting means, first detecting means for detecting an angle of the spray nozzles of the one side group with respect to the body and outputting a first detection signal corresponding thereto, and an angle of the spray nozzles of the other side group with respect to the body. And a second detection means for detecting and outputting a second detection signal corresponding thereto, one of the first and second scatter angle setting signals and the first detection signal being input, and One side group of spray nozzles A first driving control means for angular drives the first actuator to match the angle according to one of the spraying angle setting signal the, the first and second
The other of the spray angle setting signals and the second detection signal are input so that the angle of the spray nozzles of the other side group with respect to the body coincides with the angle corresponding to the other spray angle setting signal. A second angle control means for driving the second actuator, and a user operation to determine which of the first and second drive control means the first and second scatter angle setting signals are input to Switching means for automatically switching the traveling direction of the aircraft according to the above or when the running direction of the aircraft is reversed.

[Action]

According to the present invention, the first detecting means 30, the first drive control means 32, the first actuator 26 and the first adjusting mechanism 10
As a result, the angle of the spray nozzle 7 of the one side group with respect to the body (hereinafter, referred to as “one side nozzle angle”) is automatically set to an angle corresponding to the spray angle setting signal input to the first drive control means 32. Will be matched. Similarly, the angle of the spray nozzle 7 of the other side group with respect to the body (hereinafter referred to as “other side nozzle”) is controlled by the second detection means 31, the second drive control means 33, the second actuator 27, and the second adjustment mechanism 11. angle"
That. ) Is automatically matched with the angle corresponding to the spray angle setting signal input to the second drive control means 33.

Then, the first setting means 28 outputs a _first spraying angle setting signal Sa ₁ corresponding to the operation of the user, and the second setting means 29 outputs the second spraying angle signal according to the operation of the user. setting signal Sa ₂ is output, the first and second application of these angle setting signal Sa _1, Sa ₂ the first and second drive control means 3
Switching unit 34 switches which of the two is input.

Therefore, for example, the first spraying angle setting signal Sa ₁ is input to the first driving means 32 by the switching means 34 and the second
Spraying the angle setting signal Sa ₂ is a state of being input to the second drive control means 33, the one side nozzle angle first setting means
The angle is automatically adjusted to the angle set at 28, and the other-side nozzle angle is automatically adjusted to the angle set by the second setting means 29. On the other hand, the second spraying angle setting signal Sa ₂ is inputted to the first drive control means 32 by the switching means 34 and the first spraying angle setting signal Sa ₁ is inputted to the second drive control means 33. Upon switching, contrary to the above, the one-side nozzle angle is automatically adjusted to the angle set by the second setting means 26 and the other-side nozzle angle is set to the first nozzle angle.
Is automatically adjusted to the angle set by the setting means 28.

That is, simply operating the switching means 34 automatically switches the one-side nozzle angle and the other-side nozzle angle, and
Each nozzle angle can be appropriately set in accordance with work conditions by operating the first and second setting means 28 and 29.

By the way, when spraying a chemical solution or the like on a slope, as described above, the body of the speed sprayer 1 is run on a horizontal road along the contour of the slope, and the running direction of the body is appropriately reversed to sequentially move to the next contour. Since the chemical spray or the like is sprayed toward the trees above and below both sides of the horizontal road while moving to the horizontal road along the horizontal road, the body of the speed sprayer 1 is moved to the right side of the body every time the traveling direction is reversed. Which of the left side and the left side travels on the mountain side (or the valley side) is switched, but the angle of the inclined surface is generally almost the same. Therefore, first, the one-side spray angle and the other-side spray angle are adjusted and set so that the desired spray direction is achieved with respect to the tree or the like to be sprayed, and the switching means 34 is switched every time the running direction of the body is reversed. If the angles on the left and right sides are exchanged, it is possible to always perform a desired spraying direction on trees and the like and perform an appropriate spraying operation on a slope such as a chemical solution.

For this reason, according to the present invention, when spraying a medical solution or the like on an inclined ground, first, the first and second setting means 28, 2
If the right (one) side nozzle angle and the right (other) side nozzle angle are adjusted by operating 9 so as to be in the desired spraying direction with respect to the tree or the like to be sprayed, the switching means 34 is used. In the case where the above-described switching is performed in response to the operation of the user, the operation is simply performed each time the traveling direction of the aircraft is reversed, and the switching means 34 is operated when the traveling direction of the aircraft is reversed. In the case where the above-mentioned switching is automatically performed according to the above-mentioned operation, the user always sprays the chemical solution or the like while maintaining the desired spraying direction on the tree or the like without any operation. In any case, the operability is remarkably improved as compared with the above-described conventional technology.

〔Example〕

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing a spray direction control device according to one embodiment of the present invention, FIG. 2 is a rear side view showing an example of a speed sprayer 1 equipped with the spray direction control device, and FIG.
The figure is a view taken in the direction of arrows III-III in FIG. 2, and FIG. 4 is a perspective view showing an example of the adjusting mechanism.

As shown in FIGS. 2 and 3, the speed sprayer 1 has a chemical solution tank 3 mounted substantially at the center of a traveling vehicle 2 and an air outlet 6 of an axial flow blower 5 having a suction port 4 at the rear end of the body. It is a general one that is opened adjacent to the chemical liquid tank 3 and has a plurality of spray nozzles 7 facing the air outlet 6, and the spray nozzles 7 are radially arranged. A base liquid pipe 8 for guiding the liquid from the chemical liquid tank 3 is disposed in a substantially fan shape near the periphery. The base liquid tube 8 is divided into three parts, a left side, an upper side, and a right side.

In FIG. 1, reference numeral 10 denotes one side of the speed sprayer 1 with respect to the center line of the body, that is, the spray angle of the chemical liquid or the like sprayed from the spray nozzles 7 in the right group with respect to the body,
Specifically, a first adjustment mechanism 11 that can adjust a nozzle angle (hereinafter, referred to as a “right-side spray angle”) is provided on the other side with respect to the center line, that is, a chemical solution or the like sprayed from the spray nozzles 7 in the left group. This is a second adjustment mechanism that can adjust a spray angle with respect to the airframe, specifically, a nozzle angle (hereinafter, referred to as “left spray angle”).

The two-sided adjustment mechanisms 10 and 11 are, in the case of the drawings,
It is configured as shown in FIG.

That is, each of the spray nozzles 7 is fixed to a spray pipe 12, and each of the spray pipes 12 is rotatably provided on the base solution pipe 8. The spray pipe 12 is provided so as to penetrate the base liquid pipe 8 in the front-rear direction of the body, and is supported by support outer pipes 13 and 14 protruding from both front and rear sides of the base liquid pipe 8. It is rotatably supported, and the liquid is sprayed from the spray nozzle 7 through the base liquid pipe 8 and the spray pipe 12. Further, a wind guide plate 16 is attached to the spray pipe 12 with a screw 15 so that the direction of the spray nozzle 7 and the direction of the wind guide plate 16 can be simultaneously adjusted by the rotation of the spray pipe 12. . Although the air guide plates 16 are actually attached to all the spray tubes 12, a part of them is omitted in FIG. In the case of the illustrated example, the air discharge passage is divided into three passages by the inner rectifying cylinders 17 and 18 as shown in FIG. 2, but as shown in FIG.
The lower baffle plate 16 is configured for three passages, the middle baffle plate 16 is configured for two passages, and the upper baffle plate 16 is configured for one passage. Is increasing. Further, the air outlet 6
At the lower left and right sides of the
By rotating the lower air guide plate 19, the wind direction of the left and right hem portions of the air outlet 6 is controlled, so that the fan-shaped spray can be enlarged and reduced. And
The arms 21 fixed to the rear end of each of the spray tubes 12 in the left group with respect to the body are linked and connected by a connecting plate 22, and a driving rod 23 is linked to one of the predetermined arms 21 by a link. The wind plate 19 is also linked to the wind plate 19 by connecting plates 24, 25 and the like.
The spray pipes 12 and the lower baffle plate 19 of the left group rotate at the same time via 21 etc., and the directions of the spray nozzles 7, the baffle plate 16 and the lower baffle plate 19 of the left group are simultaneously changed. The left spray angle can be adjusted. In addition, if the left side spray angle is indicated by the angle of the lower air guide plate 19 with respect to the floor surface of the traveling vehicle 2 constituting the body for convenience of description, for example,
It can be adjusted in the range of ± 40 ゜. Although not shown, the right side group is similarly configured. Note that the right-side spray angle and the left-side spray angle can be adjusted independently.

The configurations of the first and second adjustment mechanisms 10 and 11 are not limited to the illustrated example.

In FIG. 1, reference numeral 26 denotes a first actuator for operating the first adjustment mechanism 10 for the right nozzle group, and reference numeral 27 denotes a second actuator for operating the second adjustment mechanism 11 for the left nozzle group. As the second actuator 27, for example, an electric motor type linear actuator is used, and is connected to the driving rod 23 via an appropriate transmission mechanism so that the driving rod 23 reciprocates up and down. The same applies to the first actuator 26. In addition, as the first and second actuators 26 and 27, other various actuators such as a hydraulic cylinder can be used in addition to the electric motor type.

In FIG. 1, reference numeral 28 denotes first setting means for outputting a _first spraying angle setting signal Sa ₁ in response to an operation of a user (not shown) in a driver's seat, and 29 denotes a first setting means in response to an operation of the user. This is a second setting unit that outputs a _second scatter angle setting signal Sa2. The first setting means 28 can be configured so that, for example, a rotary switch and a resistor are used, and the output voltage level is gradually changed according to the operation of the rotary switch. However, various other configurations such as a configuration in which the output voltage level is continuously changed in accordance with the operation of the user using the volume can be employed. The same applies to the second setting means 29.

In FIG. 1, reference numeral 30 denotes a right side spray angle (nozzle angle) and first detecting means for outputting a _first detection signal Ss1 corresponding to the right side spray angle, and 31 detects a left side spray angle (nozzle angle). A _second output of the _second detection signal Ss2 corresponding to this
Is a detection means. As the first detecting means 30, for example, a rotary encoder for detecting a rotation angle of an electric motor as the first actuator 26 can be used.

As the first detecting means 30, other various means such as a displacement meter and a potentiometer for detecting a displacement of an arbitrary member of the first adjusting mechanism 10 can be used. Second
The same applies to the detecting means 31.

In FIG. 1, reference numeral 32 denotes one of the first and second spray angle setting signals Sa ₁ and Sa ₂ (for example, Sa ₁ ) and the first spray angle setting signal Sa ₁ .
Detection signal Ss ₁ is input, so that the right spray angle matches the spray angle according to the spray angle setting signal Ss ₁ ,
This is a first drive control means including a comparison circuit, a determination circuit, and a command circuit for controlling the drive of the first actuator 26. 33, the other (eg, Sa ₂ ) of the first and second scatter angle setting signals Sa ₁ and Sa ₂ and the second detection signal Ss ₂ are input, and the left scatter angle is set to the scatter angle. to match the sprayed angle according to the angle setting signal Ss _2, a second driving control means for driving the second actuator 27. The first drive control means 32 compares, for example, the input spray angle setting signal Sa ₁ with the first detection signal Sa ₁ ,
The circuit is configured to rotate the electric motor as the first actuator 26 forward, reverse, or stop based on the comparison result. However, since the circuit technology itself is well known, detailed description thereof is omitted. . Second drive control means
The same applies to 33.

Further, in FIG. 1, reference numeral 34 denotes a switch for switching which of the first and second drive control means 32, 33 the first and second spray angle setting signals Sa ₁ , Sa ₂ are input. Means.

In the present invention, the switching means 34 may be configured so that the above-described switching operation is performed in response to a manual operation by a user, or a predetermined steering operation is performed when the traveling direction of the body of the speed sprayer 1 is reversed. The switching operation described above may be automatically performed according to the amount.

In the former case, for example, a toggle switch (another switch or the like) is used as the switching means 34, and when the operation lever is tilted to one side, the first scatter angle setting signal Sa ₁ is changed to the first scatter angle setting signal Sa ₁ . When the second spray angle setting signal Sa ₂ is input to the drive control means 32 and the second spray angle setting signal Sa ₂ is input to the second drive control means 33 and the operation lever is tilted to the other side, the second spray angle setting signal Sa ₂ is output. What is necessary is just to make it input to the first drive control means 32 and to input the first spray angle setting signal Sa ₁ to the second drive control means 33.

In the latter case, for example, a relay and a steering angle sensor for detecting the steering angle of a steering wheel of the traveling driving device of the speed sprayer 1 may be used as the switching means 34. That is, for example, when the coil portion of the relay is energized and when the energization is interrupted, the first and second drive control means 32 of the first and _second spray angle setting signals Sa ₁ and Sa ₂ are changed. , 33, the contacts of the relay are wired so that the steering angle amount becomes a predetermined amount or more based on the detection signal of the steering angle sensor (this time is when the running direction of the body is reversed). Each time, the energization and the interruption of the coil portion of the relay may be alternately repeated.

In the case of the embodiment shown in the drawing, as shown in FIG.
Furthermore, the first on the basis of the detection signal Ss ₁ displays right spray angle, the user is arranged in easily visible position, angle indicator determination circuit, and the first display means includes an angle indicator appropriate method 35 and a similar second display means 36 for displaying the left spray angle based on the second detection signal.

〔The invention's effect〕

ADVANTAGE OF THE INVENTION According to this invention, when spraying a chemical | medical solution etc. on an incline using a speed sprayer, the effect of improving the operability and safety of angle adjustment operation, etc. are acquired.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a spray direction control device according to one embodiment of the present invention, FIG. 2 is a rear side view showing an example of a speed sprayer equipped with the spray direction control device, FIG. 3 is a view taken in the direction of arrows III-III in FIG. 2, and FIG. 4 is a perspective view showing an example of the adjusting mechanism. 1 ... speed sprayer, 7 ... spray nozzle 7, 10 ... first adjustment mechanism, 11 ... second adjustment mechanism, 26 ... first actuator, 27 ... first actuator, 28 ... First setting means 29 29 Second setting means 30 First detecting means 31 Second detecting means 32 First driving control means 33 Second driving Control means, 34 ... Switching means.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁶ , DB name) B05B 17/00 102 A01M 7/00

Claims (1)

(57) [Claims] 1. A first adjusting mechanism 10 for adjusting an angle of one side group of spray nozzles 7 with respect to the body of the speed sprayer 1 with respect to the center line of the body, and a spraying nozzle 7 of the other side group with respect to the center line. A second adjustment mechanism 11 capable of adjusting an angle with respect to the airframe, a first actuator 26 for operating the first adjustment mechanism 10, and a second actuator 27 for operating the second adjustment mechanism 11; First setting means 28 for outputting a _first spraying angle setting signal Sa ₁ according to a user's operation, and a second spraying angle setting signal according to a user's operation
A _second setting means 29 for outputting Sa ₂ , a first detecting means 30 for detecting an angle of the spray nozzles 7 of the one side group with respect to the body and outputting a _first detection signal Ss ₁ corresponding thereto. ,
A second detecting means for detecting an angle of the spray nozzle 7 of the other side group with respect to the body and outputting a _second detection signal Ss2 corresponding thereto;
Detecting means 31 and the first and second spray angle setting signals
One of Sa ₁ and Sa ₂ and the first detection signal Ss ₁ are input, and the angle of the spray nozzle 7 of the one side group with respect to the airframe matches the angle according to the one spray angle setting signal. A first drive control means 32 for driving the first actuator 26 so that the other of the first and second spray angle setting signals Sa ₁ and Sa ₂ and the second detection signal Ss ₂ Is inputted, and the second actuator 27 is driven so that the angle of the spray nozzle 7 of the other side group with respect to the machine body coincides with the angle corresponding to the other spray angle setting signal.
The angle control means 33, and which of the first and second drive control means 32, 33 the first and second spray angle setting signals Sa ₁ and Sa ₂ are input to the user's operation. Switching means for automatically switching according to or when the running direction of the body is reversed
34. A spray direction control device for a speed sprayer, comprising: