JPH0522302Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a pest control device that sprays a disinfectant to exterminate diseases that occur in crops in garden greenhouses and pests that breed within the greenhouse.

(b) Prior Art Conventionally, it has been known that a traveling device is equipped with a chemical tank, a power sprayer, and a spray nozzle, and the vehicle travels unmanned while automatically detecting the position of the groove between crops. .

(c) Problems to be solved by the invention However, in the above-mentioned conventional technology, the bending of the passing groove is detected by a steering sensor installed at the tip of the aircraft in the steering direction, and a solenoid or cylinder is installed to match the bending. Steering operations were performed by rotating the steering wheels.

Therefore, a sensor mechanism and a steering operation mechanism are required, which results in a complicated structure and configuration, and this automatic steering mechanism has the disadvantage of causing failure.

The present invention replaces such a conventional complicated steering mechanism with a structure that allows the direction to be easily changed to the next ridge after the pest control of one ridge is completed.

(d) Means for solving the problem The problems to be solved by this invention are as described above.
Next, I will explain the means to solve the problem.

The main hose 5 wound on the hose winding reel 1 is pulled out to the passage groove U while spraying travels, contacts the sensor abutting rod X at the end of the passage groove U, switches to reverse travel, and returns to unmanned running prevention. In the device, one moving wheel 8 for changing the direction is provided between the wheels on the side of the operating handle 19, and by protruding the moving wheel 8 for changing the direction, the wheel can be floated and the direction can be changed. be.

(E) Embodiment The problems to be solved by the present invention and the means for solving them are as described above.Next, the structure of the embodiment shown in the attached drawings will be explained.

Figure 1 is a rear view of a gardening house during pest control using an unmanned pest control mechanism, and Figure 2 is a perspective view of the same.
FIG. 3 is a perspective view showing the overall configuration of the unmanned running pest control mechanism.

Recently, there has been a strong desire to eat vegetables and fruits that are out of season, and most fresh vegetables and fruits are grown in garden greenhouses.

However, when forced cultivation in a gardening house,
Because cultivation is forced into a hot and humid atmosphere, the incidence of disease is higher than when cultivated outdoors, and the growth rate of pests is also faster than in open fields.

Therefore, it is necessary to perform pest control several times more often than in the case of normal open field cultivation.

In addition, since dense cultivation is carried out in gardening greenhouses, the amount of chemical solution sprayed at one time is large.Furthermore, in order to obtain sufficient effects against diseases and pests, the amount of spraying must be larger than normal. This also requires the use of highly toxic drugs.

In addition to these adverse conditions, gardening greenhouses have a closed structure, so if the operator carries out pest control work by walking back and forth inside the gardening greenhouse while holding the spout,
There was a problem in which the operator became ill after being affected by the chemical after a single spraying operation.

In order to eliminate such dangerous work, the operator is required to be outside the gardening house and be able to reliably and uniformly spray chemicals throughout the gardening house in an unattended condition.

The unmanned running pest control mechanism of the present invention is configured to achieve such an objective.

That is, ridges are created in the gardening house H, and the crops Y are grown in rows. A passage groove U is provided between the crops Y and Y, and the unmanned running pest control mechanism of the present invention reciprocates in this passage groove U.

The traveling mechanism is supported by four wheels, front wheels 3, 3 and rear wheels 4, 4, and a 4-wheel drive mechanism drives both of the four wheels.
It is a wheel drive type.

When the unmanned pest control device travels and reaches the end of the gardening house H, it is necessary to travel backwards, and the sensor abutting rod X is erected at the end of the passage groove U.

Further, there is provided a nozzle support rod 12 which stands upright from the traveling mechanism and has a nozzle 14 attached thereto.

As shown in FIG. 3, a plurality of nozzles 14 are attached to the nozzle support rod 12, and a nozzle tatsuchisanse 13 is installed from the nozzle support rod 12 to detect when there is a fall or a branch of an overgrown crop Y. It protrudes from left to right.

Further, the entire outer periphery of the unmanned running pest control mechanism is covered with a body cover 11, and a transparent dome 10 protrudes from the upper part to cover the part from which the hose winding lease 1 protrudes.

In addition, the passage groove U in which the sensor abutting rod X is erected
A back light 9 is arranged on the rear surface to inform the operator outside the gardening house H that the gardening house H has started moving backward when the gardening house reaches the end of the gardening house H and starts moving backwards accurately.

A hose winding limit stopper 18 is installed at the end of the main hose 5 that is fed out rearward from the unmanned running pest control mechanism.
A hose connecting fitting 44 is attached, and the hose connecting fitting 44 can be attached to the hose connecting fitting 40 fixed to the hose fixing stake 39 with one touch. Also, power sprayer P and hose connection fitting 4
A manual drug stop valve 4 is attached to the auxiliary hose 42 between the
3 is placed.

The power sprayer P is driven by the engine E, and pressure-feeds the liquid from the drug tank 41 and supplies it to the main hose 5 from the sub-hose 42.

FIG. 4 is a side sectional view of the unmanned traveling pest control device of the present invention.

The hose take-up reel 1 is fitted and inserted at a position between the front wheels 3, 3 and the rear wheels 4, 4 to a position lower than the outer periphery of the front wheels and the rear wheels.

For this purpose, the drive motor M is disposed at the front, and the counter shaft 48 for transmitting power from the drive motor M to the hose take-up reel 1 is also located at a low position between the front wheels 3, 3 and the rear wheels 4, 4. It is located in

In this way, the counter shaft 48 is arranged at a low position, and the hose take-up reel 1 is connected to the front wheels 3, 3, the rear wheels 4,
4, the overall height of the unmanned traveling pest control mechanism could be lowered.

A battery B is arranged at the front of the hose take-up reel 1, and a control box 21 and a hose alignment device 6 are arranged at the rear of the hose take-up reel 1.
The hose alignment device 6 has a gaiter threaded rod installed in the left-right direction, and when the pieces in the threaded groove on the outer periphery of the gaiter threaded rod move laterally, the main hose 5
are aligned with the left and right positions of the hose take-up reel 1 and moved so as to be wound up.

Between the rear wheels 4, 4 and the hose alignment device 6, there are provided moving wheels 8 for changing direction when moving to the next passage groove U after one passage groove U is completed.

The drive system from the drive motor M will be explained.

A pulley 2 attached to the shaft of the drive motor M
From 9, a belt 28 is attached to the front wheel axle 16 of the front wheels 3, 3.
Power is transmitted by the belt 27 from the pulley 29 to the slip clutch mechanism 47 on the counter shaft 48.

Further, power is transmitted from the counter shaft 48 to the rear wheel axle 17 of the rear wheels 4, 4 via the belt 26.
Power is transmitted from the rear wheel axle 17 to the hose alignment device 6 through a chain.

Further, the winding speed is adjusted by a slip clutch mechanism 47 attached to the counter shaft 48.

This is because main hose 5 is attached to hose winding lease 1.
As the hose is wound up, the diameter of the hose take-up reel 1 increases, and the winding speed gradually becomes faster than the running speed, so it is necessary to temporarily stop the winding in order to match the running speed. It is.

Therefore, if the winding speed becomes faster than the traveling speed and the main hose 5 cannot be wound up, the drive motor M causes the hose winding reel 1 to
A slip clutch mechanism 47 is interposed on the counter shaft 48 so that the driving force that rotates the motor can be slipped and released, and the structure is such that the driving force can be slipped at this part. .

Further, a pulley 46 with a one-way clutch is configured on the reel drive shaft 23 that drives the hose take-up reel 1, and when the machine moves forward, the rotational force of the drive motor M is applied to the hose winding by the pulley 46 with a one-way clutch. The configuration is such that the driving force is not transmitted to the take-up reel 1, but is transmitted from the reel drive shaft 23 to the hose take-up reel 1 only when the machine moves backward.

This eliminates the need for a separate forward/reverse motor to drive the hose take-up reel 1.

The end of the main hose 5 is communicated with the reel drive shaft 23 , and the final hose 24 receives the chemical liquid under pressure from the reel drive shaft 23 to the hose internal pressure sensor switch 31 , the diversion valve 30 , and the spray switching solenoid valve 22 . supply

The nozzle support rod 12 protrudes from the body frame, and the nozzle support rod 12 is provided with a nozzle 14 facing left and right.

In addition, the nozzle support rod 12 is provided with a nozzle touch sensor 1.
3 is fixedly installed and protrudes from side to side.

Operation handle 1 from the upper rear end of the fuselage cover 11
A reverse manual switch 20R is fixed to one side of the operating handle 19, and a forward manual switch 20F is disposed to the other side.

It runs through a passage groove U of about 40 cm installed in the gardening house H or in the open field while following the steering by the following mechanism installed on the shafts of the front wheels 3, 3 and the rear wheels 4, 4, and makes a curved passage. It also follows the groove U.

A forward movement sensor 2 provided at the front and a backward movement sensor 7 provided at the rear automatically switch between forward and backward movement at the edge of the ridge.

Battery B drives a direct current motor that rotates forward and reverse.
Since the gardening house is powered by a power source, it does not make any noise even inside the gardening house H, and there is no need to worry about the generation of exhaust gas. Furthermore, since the periphery of the machine is covered with the machine cover 11 and the transparent dome 10, the crop Y is less likely to be damaged.

Also, the winding diameter of the hose winding reel 1 is the main hose 5.
As the winding progresses, it becomes larger and does not match the running speed, but due to the slip clutch mechanism 47,
By releasing the driving force of the hose take-up reel 1 so that the hose is not wound beyond a certain level, the hose can be wound at a winding speed that matches the traveling speed.

FIG. 5 is a perspective view of the forward manual switch 20F and reverse manual switch 20R provided at the front of the operating handle 19, FIG. 6 is a side view of the direction changing state with the direction changing moving wheels 8 protruding, The figure is also a bottom view, FIG. 8 is a drawing showing the protrusion mechanism of the moving wheel 8 for direction change, FIG.
0 is a plan view showing the protruding pedal 61 and the locking pedal 63, and FIG. 11 is a side view of the locking pedal 63.

As shown in FIG. 7, the direction change moving wheels 8 are arranged between the left and right rear wheels 4, 4, and normally do not interfere with the running of the front wheels 3, 3 and rear wheels 4, 4. It is stored like this.

When the pest control work for one ridge is completed, in order to move to the next ridge, the protruding pedal 61 is depressed to protrude the direction change moving wheels 8 and the rear wheels 4 are lifted off the ground. In this state, the driven front wheels 3, 3
and 3 of the direction change moving wheels 8 which are caster wheels.
Since it is supported by wheels, when the operator strongly operates the operating handle 19 to the left or right, the direction of the moving wheels 8 for changing direction changes.Since the front wheels 3 are equipped with a simple differential mechanism, the operator can change direction to the next ridge without requiring much force.

In addition, since there are cases where the direction is changed while moving forward and cases where the direction is changed while moving backward, a forward manual switch 20F and a reverse manual switch 20R are arranged on the operating handle 19, allowing you to select the direction and manually drive the aircraft. -ing

A protruding pedal 61 that protrudes the direction change moving wheel 8
is supported by a pedal rod 60, and with the protruding pedal 61 depressed, it is necessary to fix the moving wheel 8 for changing direction, and the pedal rod 60 engages with the moving wheel 8 for changing direction in the protruding state. Locking body 62
is provided in the middle of the locking pedal 63.

With the above configuration, when the protruding pedal 61 is depressed and the pedal rod 60 is engaged with the locking body 62, the direction change moving wheel 8 maintains the protruding state.

When the direction change operation is completed, by depressing the locking pedal 63 against the biasing spring 64, the locking state between the locking body 62 and the pedal rod 60 is released.
The protruding pedal 61 and the moving wheels 8 for changing direction are pushed by the weight of the aircraft body and return to their original positions, and the rear wheels 4 are installed.

FIG. 12 is a drawing showing another embodiment of the locking device.

That is, in this configuration, a one-way clutch 74 is provided at the pivot point between the protruding pedal 61 and the moving wheels 8 for changing direction, and a ratchet mechanism is also provided on the outer periphery of the one-way clutch 74.

With this configuration, when the protruding pedal 61 is depressed, the one-way clutch 74 locks the protruding state of the moving wheel 8 for changing direction, so that it does not return to its original state.

Since the one-way clutch 74 cannot be released after the direction change is completed, a separate ratchet mechanism is provided and the ratchet release pedal 65
By pressing the button, the weight of the machine is applied to the direction changing moving wheels 8, and the machine is returned to its original position.

Figure 13 shows the direction change cylinder 66 in the center of the aircraft.
14 is a bottom view of a configuration in which direction change is possible by raising both the front wheels 3, 3 and the rear wheels 4, 4 by protruding the direction change cylinder 66, FIG. 14 is also a side view, and FIG. The figure shows direction change cylinder 6
6 is a circuit diagram for operating 6.

The pressure for protruding the direction change cylinder 66 is determined by applying the chemical pressure inside the main hose 5 to the direction change control valve 67.
It is configured so that it can be used by switching according to the following.

Therefore, by providing the direction change cylinder 66, there is no need for a separate device such as a hydraulic pump.

(f) Effects of the invention Since the invention is constructed as described above, it has the following effects.

First, the long main hose 5 is connected to the hose take-up reel 1.
The unmanned pest control device is very heavy when wound up, and it is difficult to lift it and change direction after finishing the ridge.

In the present invention, by stepping on the protruding pedal 61, the moving wheel 8 for changing direction can be easily protruded by the principle of leverage, and the rear wheels 4, 4 can be lifted up. and front wheel 3,
If you operate the forward manual switch 20F or the reverse manual switch 20R while supported by the three wheels in step 3, the poperator will move without requiring much operating force.
It is possible to change direction.

Second, by making the moving wheel 8 for direction change a single caster wheel, the operator can easily operate the forward manual switch 20F or reverse manual switch 20R while pulling the operating handle 19 left and right. This makes it possible to change direction at right angles to the direction of the vehicle, making it possible to change direction at right angles even in narrow spaces.

[Brief explanation of the drawing]

Figure 1 is a rear view of a gardening house during pest control using an unmanned pest control mechanism, and Figure 2 is a perspective view of the same.
3 is a perspective view showing the overall configuration of the unmanned running pest control mechanism, FIG. 4 is a side sectional view of the unmanned running pest control device of the present invention, and FIG. 5 shows the forward manual switch 20F provided at the front of the operating handle 19. Reverse manual switch 20
A perspective view of the R portion, FIG. 6 is a side view of the direction changing state with the moving wheel 8 for changing direction projected, FIG. 7 is a bottom view of the same, and FIG. 8 shows the protruding mechanism of the moving wheel 8 for changing direction. The drawing, Figure 9 is also a rear sectional view,
FIG. 10 is a plan view showing the protruding pedal 61 and the locking pedal 63, FIG. 11 is a side view of the locking pedal 63, FIG. 12 is a drawing showing another embodiment of the locking device, and FIG. 13 is the fuselage body. FIG. 14 is a bottom view of a configuration in which a direction change cylinder 66 is provided at the center of the vehicle, and by protruding the direction change cylinder 66, both the front wheels 3, 3 and the rear wheels 4, 4 can be lifted to allow direction change. 15 is a side view as well, and FIG. 15 is a circuit diagram for operating the direction change cylinder 66. F...Forward manual switch, R...Reverse manual switch, 3, 3...Front wheel, 4,4...Rear wheel, 3b...
...Long hole, 4,4...Rear wheel, 5...Main hose, 8...
...Movement wheel for changing direction, 61...Protruding pedal, 6
3...Latching pedal.

Claims (1)

[Scope of utility model registration request] The main hose 5 wound on the hose winding reel 1 is pulled out to the passage groove U while spraying travels, contacts the sensor abutting rod X at the end of the passage groove U, switches to reverse travel, and returns to unmanned running prevention. In the device, one moving wheel 8 for changing the direction is provided between the wheels on the side of the operating handle 19, and by protruding the moving wheel 8 for changing the direction, the wheel can be floated to make it possible to change the direction. The feature is the direction change mechanism of the unmanned pest control device.