JP2000228939A - Machine for spraying chemical agent liquid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lightweight, inexpensive, chemical agent liquid-spraying machine which can easily be moved and carried. SOLUTION: When this chemical agent liquid-spraying machine is used for spraying a chemical agent liquid, a stand 37 is rearward energized and then stopped on a stand stopper 41. In the state, a hose 32 is pulled out. After a spraying work is finished, a drum tension pulley 33 is pressed by the operation of a drum clutch lever 35 to wind up the hose 32. When the chemical agent liquid-spraying machine 20 equipped with a hose-winding device is moved, the stand 37 is forward energized over a prescribed angle on a support point 39. In the state, the drum tension pulley 33 is pressed. The hose-winding drums 31 play the role of wheels to allow the travel of the chemical agent liquid- spraying machine 20 equipped with a hose-winding device.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chemical sprayer, and more particularly, to a lightweight and inexpensive chemical sprayer which can be easily moved and transported.

[0002]

2. Description of the Related Art A chemical sprayer with a hose winding device used for controlling pests and pests on agricultural products is at least 75 kgf even for a hand-operated type and 150 kgf for a heavy type.
And because of the considerable weight, it is common to have wheels for movement. When a chemical sprayer with a hose winding device is used to spray agricultural chemicals on agricultural crops and control pests and pests, the chemical sprayer with a hose winding device is moved and transported in the following procedure. First, a chemical sprayer with a hose winding device is pulled out from a storage location of a farmhouse and is loaded on a carrier of a light four-wheel truck.

After that, the hose is taken out of a hose winding device while being carried to a field and mounted on a light four-wheel truck,
Spray the chemicals and perform the control work. In some cases, a chemical sprayer with a hose winding device may be lowered to the ground to perform work. When the work is completed, return to the farm from the field, remove the chemical sprayer with the hose winding device from the light four-wheel truck, and store it again in the storage location.

FIG. 5 shows how a chemical sprayer with a hose winding device is loaded and unloaded on a light four-wheeled truck. FIG.
Is a chemical spreader 1 with a hose take-up device, with a walking plate 5 of about 2 meters in length placed on the carrier 3 of the light four-wheel truck 1.
This is where the operator 7 pushes up 0 to perform loading. In recent years, this task has often been carried out by one person due to a shortage of farmers.

[0005]

However, the loading and unloading of the chemical sprayer 10 with a hose winding device is a heavy labor for the elderly due to its weight, and is a work that involves dangers such as low back pain and accidents of falling of the machine. is there. Further, when the control work is completed, the worker returns from the field, and lowers the chemical sprayer 10 with the hose winding device from the carrier 3 of the light four-wheeled truck 1, and the like, there is a risk of similar labor and danger.

On the other hand, as a means of saving power, there is a method of driving wheels by belt transmission or transmission transmission using the power of an on-board engine (Japanese Utility Model Publication No. 64-44880, Japanese Patent Publication No. -16507
2).

However, in these driving methods, since a clutch, a brake and the like are also provided, there is a fear that the cost is increased and the weight is increased despite the less frequent use. The present invention has been made in view of such conventional problems, and it is an object of the present invention to provide a light-weight and inexpensive chemical sprayer that can be easily moved and transported.

[0008]

SUMMARY OF THE INVENTION Accordingly, the present invention (claim 1) provides a frame (11) having a handle (45) attached to a rear portion thereof 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) and a pump (23) rotatably driven by the frame (11) and the power transmission means (17,
19, 21, 25, 27, 29), the hose (3) connected to the pump (23).
A hose winding drum (31) from which 2) is wound, and wheels (13) disposed at the front of the frame (11);
Detachment holding means (37, 39, 41, 43) disposed at the rear of the frame (11) for switching and holding the hose winding drum (31) from the ground or landing.
And the power transmission means (17, 19, 21, 25, 2)
7, 29) for power transmission control means (33, 35).

A handle (4) is provided at the rear of the frame (11).
5) is attached. The 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 the power transmission means (17, 19, 21, 25, 27, 29).

On the other hand, the hose winding drum (31) also has a power transmission means (17, 19, 21,...) Like the pump (23).
25, 27, 29). The hose winding drum (31) is supported by the frame (11), and winds a hose (32) connected to the pump (23). Also, wheels (13) are arranged at the front of the frame (11).

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

If the handle (45) is lifted, the frame (11) can be manually pushed by the wheels (13). Also, holding means such as detachment (37, 39, 4)
When the hose winding drum (31) is separated from the ground according to (1, 43), the hose (32) can be wound by the power of the engine (15).

On the other hand, holding means such as detachment (37, 39, 4)
According to 1, 43), when the hose winding drum (31) lands on the ground, the frame (11) can be automatically driven by the power of the engine (15). The traveling is controlled by power transmission control means (33, 35).

As described above, the moving operation of the chemical sprayer (20) can be easily performed, and can be operated by one person. Further, since one engine (15) is also 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. .

Further, 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, 2).
5, 29), and the power transmission control means (33, 3
5) is the belt (19, 27) or pulley (17, 2).
It has a tension pulley (33) for applying tension to (1, 25, 29).

Power transmission means (17, 19, 21, 25,
27, 29) includes a belt (19, 27) and a pulley (1).
7, 21, 25, 29) and a combination of a plurality of pulleys (17, 21, 25, 29). A tension pulley (33) is used for the power transmission control means (33, 35). Then, the belt (19, 27) and the pulley (17, 2)
1, 25, 29), the tension pulley (33) is connected to the belt (19, 27).
To give tension.

Further, pulleys (17, 21, 25, 29)
, The tension pulley (33) is provided with pulleys (17, 21, 25, 2).
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 provided with a stand (39) which can rotate about a predetermined point of the frame (11) as a fulcrum (39). 37), a stand stopper (41) for preventing the stand (37) from opening too far rearward, and the stand (37) being moved forward or rearward at a predetermined angle around the fulcrum (39). And an elastic body (43) for urging.

The stand (37) is rotatable about a predetermined point of the frame (11) as a fulcrum (39). The stand stopper (41) prevents the stand (37) from opening too far back. That is, when the stand (37) is stopped by the stand stopper (41), the stand stopper (41) is provided so that the hose winding drum (31) is kept detached from the ground. The elastic body (4) is urged forward or backward at a predetermined angle around the fulcrum (39).
3) is installed. As described above, the holding means (37,
39, 41, and 43) can be realized at a low cost with a simple configuration.

Further, the present invention (claim 4) is characterized in that a friction material (53) is arranged on the outer periphery of the hose winding drum (31). A friction material (5
3) is installed.

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 of the hose (32) is fixed to a predetermined position (49) inside the hose winding drum (31) after winding the hose (32). End fixing means (47, 51) are provided.

When the hose winding drum (31) is automatically driven, the end of the hose (32) is fixed at a predetermined position (inside the hose winding drum (31)) so that the hose (32) does not hinder the running. 49). Predetermined location inside (4
9) is preferably a concave portion (49) inside the side plate of the hose winding drum (31) so as not to hinder the drawing 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]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an overall configuration diagram of an embodiment of the present invention. In FIG. 1, wheels 13 are mounted on the left and right sides of the bottom of a frame 11 of a chemical sprayer 20 with a hose winding device. The engine 15 rotates the V pulley 17.

The rotation of the V pulley 17 is transmitted to a V pulley 21 via a V belt 19. The rotation of the V-pulley 21 drives a crankshaft (not shown) of the pump 23, and simultaneously rotates the V-pulley 25 connected to the crankshaft.

The rotation of the V pulley 25 is transmitted to a V pulley 29 via a V belt 27, and the hose winding drum 31 is driven to rotate. Hose winding drum 3
1, the hose 32 is wound up.
V pulley 17, V belt 19, V pulley 21, V pulley 25, V belt 27, and 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 a pesticide is diluted is separately prepared. The pump 23 sucks a chemical from the water absorption tank via a water absorption pipe (not shown). The inhaled drug solution is sent to a spray nozzle (not shown) attached to the other end of the hose 32 by pressure.

A V-belt 19 is provided with a pump tension pulley (not shown) that can be connected and disconnected. The pump tension pulley presses the V-belt 19 by operating a pump clutch lever (not shown). In addition, a drum tension pulley 33 is disposed on the V-belt 27 so as to be able to be connected and disconnected. The drum tension pulley 33 presses the V-belt 27 by operating a 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 provided with a fulcrum 39 of the frame 11.
Can be turned around. The stand stopper 41 prevents the stand 37 from opening too far rearward. The spring 43 is disposed so that the stand 37 is urged forward or backward at a predetermined angle (not shown) around the fulcrum 39.

In the stand 37 shown in FIG. 1, the case indicated by a solid line indicates a case where the stand is urged backward from a predetermined angle, and the case indicated by a dotted line indicates a case where the stand 37 is urged forward from a predetermined angle. The stand 37, the fulcrum 39, the stand stopper 41, and the spring 43 correspond to holding means such as detachment.

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

A concave portion 49 is provided inside one side of the winding drum side plate 34, and a hose fixing male screw 51 projects into the concave portion 49 to a depth of the concave portion 49. And
After the hose 32 is wound by the hose winding drum 31, the hose fixing female screw nut 47 is screwed with the hose fixing male screw 51 and fixed to one of the winding drum side plates 34. The hose fixing female screw nut 47 and the hose fixing male screw 51 correspond to hose end fixing means.

FIG. 3 is a partially enlarged view of one of the winding drum side plates 34. As shown in FIG. 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 chemical solution will be described. At this time, as shown by a solid line in FIG.
At a predetermined angle around the fulcrum 39, it is urged rearward, and the stand 37 is stopped by the stand stopper 41. The drum clutch lever 35 is in a 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 end of the hose 32. Thereafter, the engine 15 is started and the clutch lever for the pump is operated to push the tension pulley for the pump. Then, the spraying operation of the chemical solution is performed.

After the spraying operation is completed, the clutch lever for the pump is released. Then, the spray nozzle is removed from the hose 32. Thereafter, the drum tension pulley 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 female screw nut 47 for fixing the hose is screwed to the male screw 51 in a state where the hose 32 is as loose 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 chemical liquid sprayer 20 with the hose winding device is moved and run, or is mounted on a carrier of a light four-wheel truck by using a step board. When the chemical sprayer 20 with the hose winding device is moved and moved, the stand 37 is moved to a fulcrum 39 as shown by a dotted line in FIG.
It is urged forward at a predetermined angle around. Stand 37
Is 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 tension pulley 33 is pressed by operating the drum clutch lever 35. The hose winding drum 31 rotates by receiving the power of the engine 15. The hose winding drum 31 plays the role of a wheel, and the chemical 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 running. The drum tension pulley 33 can perform rotation control in a half-clutch state in addition to the connection / disconnection operation.

FIG. 4 shows how the chemical sprayer 20 with the hose winding device is self-propelled mounted on the carrier 3 of the light four-wheel truck 1 using the step board 5. Since a friction material is stuck on the outer periphery of the winding drum side plate 34, it can be easily mounted on a slope such as the walking board 5 or the like. Note that a tire may be mounted around the outer periphery of the hose winding drum 31.

Next, a chemical sprayer 20 with a hose winding device
Is lowered from the carrier 3 of the light four-wheel truck 1 using the step board 5. As shown in FIG. 4, the chemical sprayer 20 with the hose winding device applies friction 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 half-clutched. While lowering.

As described above, by opening and closing the stand 37, the hose winding drum 31 can be used for both functions of winding the hose and driving wheels. As described above, since the hose winding drum 31 is also used as a driving wheel, a dedicated driving tire as in the related art is not required, and the chemical sprayer 20 with the hose winding device can be provided at a light weight and at a low cost.

The drum tension pulley 33 serves as both a take-up clutch and a self-propelling drive clutch, and also has a drum clutch lever 35, so that the number of components is extremely small, and a hose take-up device is provided. The chemical sprayer 20 can be provided at low cost. Since the outer periphery of the winding drum side plate 34 having a large diameter is used as a driving wheel, a large running torque can be obtained. Since the friction material 53 is adhered to the outer periphery of the winding drum side plate 34, the stepping plate 5 can easily be mounted on the light four-wheel truck 1.

The rotation of the V pulley 25 is controlled by the V belt 2
Although described as being transmitted to the V-pulley 29 via the V, the power can be transmitted by combining a plurality of pulleys alone without using the V-belt 27. At this time, the drum tension pulley is directly interposed between the pulleys, and the pressing, disengagement, or half-clutch state by the drum tension pulley can be realized.

[0044]

As described above, according to the present invention, detachment holding means (37, 39, 41, 43) are provided, and the detachment or landing of the hose winding drum (31) from the ground is switched. Since it is configured to hold the hose, the hose winding drum (31) can perform both functions of winding the hose (32) and functioning as a drive wheel. Further, since one engine (15) is also 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 the 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 sprayer with a hose winding device on a light four-wheeled truck.

FIG. 5 is a view showing a state in which a conventional chemical sprayer with a hose winding device is loaded and unloaded on a light four-wheeled truck.

[Explanation of symbols]

 Reference Signs List 11 frame 13 wheels 15 engine 17, 21, 25, 29 pulley 19, 27 belt 20 chemical sprayer 23 pump 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 Hose fixing female screw nut 49 Recess 51 Hose fixing male screw 53 Friction material

Claims (6)

[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,
Pumps (23) rotationally driven by 27, 29);
The hose (32) connected to the pump (23) is wound by being rotatably driven by the power transmission means (17, 19, 21, 25, 27, 29) by being supported by the frame (11). Hose winding drum to be taken (31)
And wheels (1) disposed in front of the frame (11).
(3) and detachment holding means (37, 39, 41, and 40) disposed at the rear of the frame (11) for switching and holding the hose winding drum (31) from the ground or landing.
43) and the power transmission means (17, 19, 21, 2).
And a power transmission control means (33, 35) for controlling the transmission of power by the liquid chemical sprayer (5, 27, 29). 2. The power transmission means (17, 19, 21,
25, 27, 29) includes a belt (19, 27) and / or a pulley (17, 21, 25, 29), and the power transmission control means (33, 35) includes a belt (19, 2).
The chemical sprayer according to claim 1, further comprising a tension pulley (33) for applying tension to the pulley (17, 21, 25, 29). 3. The detachment holding means (37, 39, 4).
1, 43) are a stand (37) rotatable around a predetermined point of the frame (11) as a fulcrum (39), and a stand stopper (41) for preventing the stand (37) from opening too rearward. An elastic body (43) for urging the stand (37) forward or backward at a predetermined angle around the fulcrum (39). The chemical sprayer according to the above. 4. The chemical sprayer according to claim 1, wherein a friction material (53) is provided on an outer periphery of the hose winding drum (31). 5. The tire according to claim 1, wherein a tire is mounted around an outer periphery of the hose winding drum.
The chemical 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). The chemical sprayer according to claim 1, 2, 3, 4, or 5, wherein the chemical sprayer is disposed.