JP3442680B2 - Chemical sprayer - 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 liquid spraying machine, and more particularly to a chemical liquid spraying machine which is easy to move and carry, and is lightweight and inexpensive.

[0002]

2. Description of the Related Art A chemical spraying machine with a hose winding device used for controlling pests of agricultural products is at least 75 kgf even if it is a hand-operated type, and 150 kgf if it is heavy.
Since it is quite heavy, it is generally equipped with wheels for movement. When spraying agricultural chemicals on pesticides and controlling pests by using this chemical sprayer with a hose winder, the chemical sprayer with a hose winder is moved and transported according to the following procedure. First, pull out the chemical sprayer with a hose winder from the farm's storage location and load it onto the carrier of a light four-wheel truck.

After that, the hose was taken out from the hose winding device while being transported to the field and mounted on a light four-wheel truck.
Spray chemicals and carry out control work. In addition, the chemical sprayer with the hose take-up device may be lowered to the ground for the work. When the work is completed, return to the farm from the field, remove the chemical sprayer with hose retractor from the light four-wheel truck, and store it again in the storage location.

FIG. 5 shows a loading / unloading operation of a chemical spraying machine with a hose winding device on a light four-wheel truck. Figure 5
Is mounted on the carrier 3 of the light four-wheel truck 1 with the walk plate 5 having a length of about 2 meters, and the chemical sprayer 1 with the hose winding device 1
This is the place where the worker 7 pushes up 0 to load it. Recently, this work is often performed by one person due to the lack of labor of farmers.

[0005]

However, the loading and unloading of the chemical sprayer 10 with the hose retractor is heavy for the elderly due to its heavy weight, and is a task that involves a risk of backache or accidental fall of the machine. is there. Also, when the control work is finished and the worker returns from the field and lowers the chemical sprayer 10 with the hose retractor from the loading platform 3 of the light four-wheel truck 1, the same labor and danger may occur.

[0006] On the other hand, as a conventional means for saving labor, there is a method of driving wheels by belt conduction or transmission by using the power of an on-board engine (Japanese Utility Model Publication No. 64-48880 and Japanese Patent Publication No. Hei 10). -16507
2).

However, since these driving methods are also equipped with a clutch, a brake and the like, there is a risk that the cost will increase and the weight will increase although the frequency of use is low. The present invention has been made in view of such conventional problems, and an object thereof is to provide a chemical spraying machine that is easy to move and transport, is lightweight, and is inexpensive.

[0008]

For this reason, the present invention (Claim 1) includes a frame (11) having a handle (45) attached to the rear portion, and an engine (15) mounted on the frame (11). , Power transmission means (17, 19, 21, 25, 27, 29) for transmitting the power of the engine (15)
And the power transmission means (17, 19, 21, 25, 27,
29) is rotatably driven by a pump (23) and the power transmission means (17,
The hose (3) connected to the pump (23) by being rotationally driven by 19, 21, 25, 27, 29).
A hose winding drum (31) around which 2) is wound, a wheel (13) arranged in the front part of the frame (11),
Detachment holding means (37, 39, 41, 43) arranged at the rear portion of the frame (11) for switching and holding the hose winding drum (31) from the ground or from the ground.
And the power transmission means (17, 19, 21, 25, 2)
7, 29) and power transmission control means (33, 35) for controlling the power transmission.

At the rear of the frame (11) is a handle (4
5) is attached. An engine (15) is mounted on the frame (11). The power transmission means (17, 19, 21, 25, 27, 29) transmits the power of the engine (15). The pump (23) is rotationally driven by this power transmission means (17, 19, 21, 25, 27, 29).

On the other hand, the hose take-up drum (31) also has a power transmission means (17, 19, 21,) similar to the pump (23).
25, 27, 29). The hose winding drum (31) is rotatably supported by the frame (11) and winds up the hose (32) connected to the pump (23). Further, wheels (13) are arranged in the front part of the frame (11).

At the rear portion of the frame (11), detachment holding means (37, 39, 41, 43) is arranged,
The removal or landing of the hose winding drum (31) from the ground is switched, and the state is maintained. Power transmission control means (3
3, 35) are power transmission means (17, 19, 21, 2).
5, 27, 29), power transmission can be connected / disconnected or friction controlled.

When the handle (45) is lifted, the frame (11) can be manually pushed by the wheels (13). Further, the detachment holding means (37, 39, 4
If the hose take-up drum (31) is detached from the ground by means of 1, 43), the hose (32) can be taken up by the power of the engine (15).

On the other hand, the detachment holding means (37, 39, 4
If the hose take-up drum (31) is landed on the ground by means of 1, 43), the frame (11) can be automatically driven by the power of the engine (15). The traveling control is performed by the power transmission control means (33, 35).

As described above, the operation of moving the chemical spraying machine (20) can be easily performed and can be operated by one person. Further, since one engine (15) is used for driving the pump (23), winding the hose (32) by the hose winding drum (31), and automatically running the frame (11), it is lightweight and inexpensive. .

According to the present invention (claim 2), the power transmission means (17, 19, 21, 25, 27, 29) includes a belt (19, 27) and / or a pulley (17, 21, 2).
5, 29), and the power transmission control means (33, 3)
5) is the belt (19, 27) or pulley (17, 2)
It is characterized by having a tension pulley (33) for giving tension to 1, 25, 29).

Power transmission means (17, 19, 21, 25,
27, 29) are belts (19, 27) and pulleys (1
7, 21, 25, 29) and a combination of a plurality of pulleys (17, 21, 25, 29). A tension pulley (33) is used as the power transmission control means (33, 35). Then, the belt (19, 27) and the pulley (17, 2)
1, 25, 29), the tension pulley (33) has a belt (19, 27).
Give tension to.

Further, pulleys (17, 21, 25, 29)
If a plurality of tension pulleys (17, 21, 25, 2) are combined,
Give tension to 9). As described above, the power transmission means (17, 19, 21, 25, 27, 29) and the power transmission control means (33, 35) can be realized at a low cost with a simple configuration.

Further, according to the present invention (claim 3), the detachment holding means (37, 39, 41, 43) is a stand () which is rotatable around a predetermined point of the frame (11) as a fulcrum (39). 37), a stand stopper (41) for preventing the stand (37) from opening backward too much, and the stand (37) is placed either forward or backward at a predetermined angle around the fulcrum (39). And an elastic body (43) for urging.

The stand (37) can rotate about a predetermined point of the frame (11) as a fulcrum (39). The stand stopper (41) prevents the stand (37) from opening backward too much. That is, when the stand (37) is stopped by the stand stopper (41), the stand stopper (41) is arranged so that the state where the hose winding drum (31) is separated from the ground is maintained. The elastic body (4) is arranged so that the stand (37) is urged forward or backward at a predetermined angle around the fulcrum (39).
3) is provided. As described above, the detachment holding means (37,
39, 41, 43) can be realized at a low cost with a simple structure.

Furthermore, the present invention (claim 4) is characterized in that a friction material (53) is disposed on the outer periphery of the hose winding drum (31). A friction material (5) is provided on the outer periphery of the hose winding drum (31) so that the hose winding drum (31) can easily travel even on a slope.
3) is provided.

Further, the present invention (claim 5) is characterized in that a tire is mounted around the outer periphery of the hose winding drum (31).

Further, according to the present invention (claim 6), the end portion of the hose (32) is fixed to a predetermined position (49) inside the hose winding drum (31) after the hose (32) is wound. Hose end fixing means (47, 51) for arranging is provided.

When the hose take-up drum (31) is automatically run, the end of the hose (32) is placed at a predetermined position inside the hose take-up drum (31) so that the hose (32) does not interfere with the running. 49). Inside predetermined location (4
It is desirable that 9) is a recess (49) inside the side plate of the hose winding drum (31) so as not to hinder pulling out and winding of the hose (32). The hose end fixing means (47, 51) is composed of, for example, a male screw and a female screw.

[0024]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. An overall configuration diagram of an embodiment of the present invention is shown in FIG. In FIG. 1, wheels 13 are attached to the left and right in front of the bottom of a frame 11 of a chemical sprayer 20 with a hose retractor. The engine 15 rotates the V pulley 17.

The rotation of the V pulley 17 is transmitted to the V pulley 21 via the V belt 19. The rotation of the V pulley 21 drives a crank shaft (not shown) of the pump 23, and at the same time, the V pulley 25 connected to the crank shaft is also rotated.

The rotation of the V-pulley 25 is transmitted to the V-pulley 29 via the V-belt 27, and the hose winding drum 31 is rotationally driven. Hose winding drum 3
1, a hose 32 is wound up.
The V pulley 17, the V belt 19, the V pulley 21, the V pulley 25, the V belt 27, and the V pulley 29 correspond to power transmission means.

One end of the hose 32 is connected to the pump 23. In addition, a water absorption tank (not shown) in which the pesticide is diluted is separately prepared. Then, the pump 23 sucks the chemical liquid from the water absorption tank through a water absorption pipe (not shown). The inhaled chemical liquid is pressure-fed to a spray nozzle (not shown) attached to the other end of the hose 32.

A pump tension pulley (not shown) is provided on the V-belt 19 so that it can be connected and disconnected. This pump tension pulley presses the V-belt 19 by operating a pump clutch lever (not shown). Further, a drum tension pulley 33 is arranged on the V-belt 27 so that it can be connected and disconnected. The drum tension pulley 33 presses the V belt 27 by operating the drum clutch lever 35.
The drum tension pulley 33 and the drum clutch lever 35 correspond to power transmission control means.

The stand 37 is a fulcrum 39 of the frame 11.
It is possible to rotate around. The stand stopper 41 is designed to prevent the stand 37 from opening too far backward. The spring 43 is arranged so that the stand 37 is biased forward or backward at a predetermined angle (not shown) around the fulcrum 39 as a boundary.

The stand 37 in FIG. 1 shows the case shown by the solid line when it is biased rearward from a predetermined angle, and the case shown by the dotted line shows the case where it is biased forward from the predetermined angle. The stand 37, the fulcrum 39, the stand stopper 41, and the spring 43 correspond to holding means such as a detachment member.

A handle 45 is fixed to the rear of the frame 11. In addition, at the other end of the hose 32,
As shown in FIG. 2, a female screw nut 47 for fixing the hose is attached. On the other hand, on the hose winding drum 31, winding drum side plates 34 are attached to both left and right sides of the drum (not shown) so that the hose 32 does not come out during winding of the hose 32.

A concave portion 49 is provided inside one of the winding drum side plates 34, and a male screw 51 for fixing a hose is provided in the concave portion 49 so as to protrude within the depth of the concave portion 49. And
The hose fixing female screw nut 47 is adapted to be screwed with the hose fixing male screw 51 after the hose 32 is wound up by the hose winding drum 31, and to be fixed to one of the winding drum side plates 34. The female screw nut 47 for fixing the hose and the male screw 51 for fixing the hose correspond to a hose end fixing means.

FIG. 3 shows a partially enlarged view of one side of the winding drum side plate 34. A friction material 53 is attached to the outer periphery of the winding drum side plate 34. The friction material 53 is attached to both the left and right winding drum side plates 34.

Next, the operation of the embodiment of the present invention will be described. First, the case of spraying a drug solution will be described. At this time, the stand 37, as shown by the solid line in FIG.
At a predetermined angle around the fulcrum 39, the stand 37 is biased rearward, and the stand 37 is stopped by the stand stopper 41. Further, the drum clutch lever 35 is in the released state so that the drum tension pulley 33 is not pressed.

Since the hose winding drum 31 is not restrained, the hose 32 is pulled out in this state. A spray nozzle (not shown) is connected to the tip of the hose 32. Then, the engine 15 is started and the pump clutch lever is operated to press the pump tension pulley. Then, the spraying operation of the chemical liquid is performed.

After the spraying work is completed, the clutch lever for the pump is released. Then, the spray nozzle is removed from the hose 32. Then, the drum tension lever 33 is pressed by operating the drum clutch lever 35. At this time, the hose winding drum 31 is rotated and the hose 32 is wound. After the winding of the hose 32 is completed, the drum clutch lever 35 is released. Then, the hose fixing female screw nut 47 is screwed into the male screw 51 in a state where the slack of the hose 32 is as small as possible. As a result, the hose 32 is stored within the height of the winding drum side plate 34.

Next, a description will be given of a case where the liquid medicine spraying machine 20 with the hose winding device is moved and run, or is mounted on a cargo bed of a light four-wheel truck by using a step board. When the chemical solution sprayer 20 with the hose retractor is moved and run, the stand 37 supports the fulcrum 39 as shown by the dotted line in FIG.
Bias forward at a predetermined angle around it. Stand 37
Are stopped by the lower part of the frame 11. At this time, the outer periphery of the winding drum side plate 34 is in a landing state.

In this state, the drum clutch lever 35 is operated to press the drum tension pulley 33. The hose take-up drum 31 is rotated by the power of the engine 15. The hose winding drum 31 plays a role of a wheel, and the chemical solution sprayer 20 with the hose winding device runs. At this time, since the hose 32 is housed and fixed within the height of the winding drum side plate 34, it does not hinder the running. The drum tension pulley 33 can perform rotation control in a half-clutch state in addition to connection / disconnection operation.

FIG. 4 shows a self-propelled mounting of the chemical sprayer 20 with a hose winding device on the carrier 3 of the light four-wheel truck 1 using the walk board 5. Since a friction material is attached to the outer circumference of the winding drum side plate 34, it is possible to easily mount the climbing plate 5 on a sloped road. A tire may be mounted around the outer circumference of the hose winding drum 31.

Next, the chemical sprayer 20 with the hose winding device.
The case of unloading the vehicle from the loading platform 3 of the light four-wheel truck 1 using the step board 5 will be described. As shown in FIG. 4, the chemical sprayer 20 with the hose retractor applies frictional braking between the drum tension pulley 33 and the V belt 27 while the engine 15 is stopped and the drum clutch lever 35 is a half clutch. Take it down.

As described above, by opening and closing the stand 37, the hose winding drum 31 can be used for both functions of hose winding and driving wheels. Since the hose take-up drum 31 is also used as the drive wheel in this way, a dedicated drive tire as in the conventional case is not required, and the chemical liquid sprayer 20 with a hose take-up device can be provided in a lightweight and inexpensive manner.

Since the drum tension pulley 33 can be used both as a winding clutch and a self-propelled driving clutch, and also as the drum clutch lever 35, the number of constituent parts can be extremely small, and the hose winding device is included. The chemical spraying machine 20 can be provided at low cost. Since the outer circumference of the winding drum side plate 34 having a large diameter is used as the driving wheel, a large running torque can be obtained. Further, since the friction material 53 is adhered to the outer periphery of the winding drum side plate 34, it is easy to mount the step plate 5 on the light four-wheel truck 1.

The V-pulley 25 is rotated by the V-belt 2
Although it has been described that the power is transmitted to the V pulley 29 via 7, the power can be transmitted by combining only a plurality of pulleys without using the V belt 27. At this time, the drum tension pulley can be directly interposed between the pulleys so that the drum tension pulley can be pressed, released, or half-clutched.

[0044]

As described above, according to the present invention, the detachment holding means (37, 39, 41, 43) is provided to switch the detachment or landing of the hose winding drum (31) from the ground. Since it is configured to hold the hose, the hose winding drum (31) can perform both functions of winding the hose (32) and as a driving wheel. Further, since one engine (15) is used for driving the pump (23), winding the hose (32) by the hose winding drum (31), and automatically running the frame (11), it is lightweight and inexpensive. .

[Brief description of drawings]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention.

FIG. 2 is a diagram showing a method of fixing a hose to a hose winding drum.

FIG. 3 is an enlarged view of one part of a winding drum side plate.

FIG. 4 is a diagram showing a loading / unloading operation of a chemical liquid sprayer with a hose winding device on a light four-wheel truck.

FIG. 5 is a diagram showing a state where a conventional chemical sprayer with a hose winding device is loaded and unloaded on a light four-wheel truck.

[Explanation of symbols]

11 frames 13 wheels 15 engine 17, 21, 25, 29 pulleys 19, 27 belt 20 chemical sprayer 23 pumps 31 Hose winding drum 32 hose 33 Drum tension pulley 34 Winding drum side plate 35 Drum clutch lever 37 stand 39 fulcrum 41 Stand stopper 43 spring 45 handle 47 Female thread nut for hose fixing 49 recess 51 Male screw for hose fixing 53 Friction material

Claims (6)

(57) [Claims] 1. A frame (11) having a handle (45) attached to a rear portion thereof, an engine (15) mounted on the frame (11), and a power transmission means (for transmitting power of the engine (15) ( 17, 19, 21, 25, 27,
29) and the power transmission means (17, 19, 21, 25,
A pump (23) rotationally driven by 27, 29),
The hose (32) connected to the pump (23) is wound by being pivotally supported by the frame (11) and rotationally driven by the power transmission means (17, 19, 21, 25, 27, 29). Hose winding drum to be taken (31)
And a wheel (1) arranged at the front of the frame (11).
3) and a detachment holding means (37, 39, 41, which is disposed at the rear portion of the frame (11) and switches and retains the hose winding drum (31) from the ground or from the ground.
43) and the power transmission means (17, 19, 21, 2)
5, 27, 29) and a power transmission control means (33, 35) for controlling the transmission of power by the chemical liquid spraying machine. 2. The power transmission means (17, 19, 21,
25, 27, 29) has a belt (19, 27) and / or a pulley (17, 21, 25, 29), and the power transmission control means (33, 35) has the belt (19, 2).
7. The chemical spraying machine according to claim 1, further comprising a tension pulley (33) for applying a tension to the pulley (7) or the pulley (17, 21, 25, 29). 3. The retaining means (37, 39, 4) for separating or the like.
1, 43) are a stand (37) rotatable about a predetermined point of the frame (11) as a fulcrum (39), and a stand stopper (41) for preventing the stand (37) from being excessively opened rearward. The elastic body (43) for urging the stand (37) forward or backward at a predetermined angle around the fulcrum (39) as a boundary. The chemical sprayer described. 4. The chemical sprayer according to claim 1, 2 or 3, wherein a friction material (53) is arranged on the outer periphery of the hose winding drum (31). 5. A tire is mounted around the outer circumference of the hose winding drum (31).
3. The chemical solution sprayer according to 3 or 4. 6. A hose end fixing means (47) for fixing an end of the hose (32) after winding the hose (32) at a predetermined position (49) inside the hose winding drum (31). , 51) is provided. The chemical solution spraying machine according to claim 1, 2, 3, 4, or 5.