JP3080787U - Power sprayer - Google Patents

Abstract

(57) [Summary] (Modifications) [Problem] For a light and small power sprayer mainly used in a small-scale field, it is necessary to carry the aircraft from the home storage location to the field and to get on and off the vehicle for transporting the aircraft. Provided is a power sprayer that can be performed safely and easily even by a low-powered worker with little burden on the worker. SOLUTION: A power sprayer is configured such that a chemical solution tank 4, an engine 5, and a pump device 8 are mounted on a machine base 1, and the engine 5 drives the pump device 8 to spray the chemical solution in the tank 4. , A traveling wheel 2 is mounted on a lower portion of the machine base 1 via a support shaft 3, and a handlebar 9 having an upper portion 9 a as a steering grip is attached to the machine body 1, while the pump device 8 Is configured to protrude to the outside of the apparatus, and the support shaft 3 of the wheel 2 is interlockedly connected to the protruding shaft portion 16 via a clutch that interrupts power transmission.

Description

[Detailed description of the invention]

[0101]

[Technical field to which the invention belongs]

 The present invention relates to a light and small power sprayer mainly used for spraying a drug solution such as a drug or a fertilizer in a small-scale field.

[0092]

[Conventional technology and problems]

 Conventionally, this type of power sprayer has a chemical tank, a prime mover, and a pump device mounted on a machine base with a carrying band, and the operator uses the pump device to carry the machine base with the carrying band. Is driven to spray the chemical solution in the tank.

By the way, although the power sprayer is designed to be lighter and smaller, the chemical spray tank, the prime mover, the pump device, etc. are mounted on the machine base, so that the power sprayer is stored and stored at home. When carrying the aircraft to the field, carrying the machine on the ground as described above is a very heavy burden for workers, especially for the weak, such as the elderly and women, and will require heavy labor. If the farm is far from home, a vehicle for transportation will be used.However, not only does the above aircraft require a large amount of hard work to get on and off the vehicle, This poses a great deal of labor and burden on workers as a whole, and has a problem with its safety.

In addition, a traveling wheel is provided at a lower portion of the machine base, and an engine, a pump device, and a chemical solution tank are mounted at an upper portion. The wheels and the pump device are driven by the operation of the engine, and the machine body travels. Although there are many self-propelled power sprayers configured to spray chemicals, they are not suitable for small-scale fields as described above.In other words, self-propelled power sprayers are structurally and geometrically shaped. It is not suitable for spraying in small-scale fields where the cultivation intervals and ridge intervals in the fields are narrow and large. The actual situation is that the power sprayer used exclusively for carrying is used.

The present invention has been devised in consideration of the above-mentioned problems. In a lightweight and small power sprayer mainly used in a small-scale field, the device is carried from the home storage place to the field and the aircraft is It is an object of the present invention to provide a power spraying machine that can carry out getting on and off a transportation vehicle with less burden on an operator and that can be performed safely and easily even by a weak operator.

[0086]

[Means for solving the invention]

 In order to achieve the above object, the present invention provides a power sprayer which is configured such that a chemical solution tank, a prime mover and a pump device are mounted on a machine base, and the prime mover drives the pump device to spray the chemical solution in the tank. A support shaft for the traveling wheel is mounted on the lower part of the machine base, and a grip handle is provided to protrude to the upper part of the machine base. It is characterized in that the wheel support shafts are interlocked and connected via a clutch that interrupts the transmission of power.

007

[Action]

 According to the above-described configuration, the operator performs the traveling movement by pushing or pulling the machine frame with the grip handle, and at this time, the machine movement is assisted by driving the wheels by the prime mover. To reduce the pushing and pulling force of the worker. This makes it possible to carry the machine such as carrying it from the home storage area to the field and getting on and off the transport vehicle with a small force, with less burden on the worker, with less labor, and more safely and easily.

[0098]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an embodiment of the power sprayer of the present invention, FIG. 2 is a side view of the same, FIG. 3 is an enlarged vertical sectional front view of the essential parts, and FIG.

In the drawing, reference numeral 1 denotes a machine base on which wheels 2 are mounted via a support shaft 3 at a lower part, and a chemical solution tank 4, a starter 6 for driving, a fuel tank 7 and the like are provided on the machine base 1. An engine 5 and a pump device 8 directly connected to the engine 5 are mounted. Further, the machine base 1 is provided with an L-shaped handle bar 9 in a side view.

The handle rod 9 is configured so that its upper portion 9a protrudes above the chemical solution tank 4 as a grip portion for steering, and that the lower portion 9b is bent in a letter-like shape so as to be grounded. Is formed so as to maintain an upright state in cooperation with the wheel 2, and is wound around an accelerator lever 10 of the engine 5, an operation lever 11 of a clutch 23 described later, and a hose 13 having a spray nozzle (not shown). A hose hook rod 12 for holding is provided.

Although not shown, the suction port of the pump device 8 is connected to the chemical solution tank 4, and the discharge port thereof is connected to the hose 13.

However, a main shaft 14 having an eccentric cam 15 and the like are provided inside the pump device 8 directly connected to the engine 5, and the eccentric cam 15 is rotated by the rotation of the main shaft 14 to perform a pumping operation. The main shaft 14 is connected to an output shaft 24 of the engine 5, and the rotation of the main shaft 14 by the output shaft 24 sucks the chemical solution in the tank 4 and causes the end of the hose 13. In the pump device 14 having such a structure, the main shaft 14 is projected 16 to the outside of the device, a worm gear 17 is formed on the projected shaft portion 16, and A worm wheel 18 meshing with the worm gear 17 is inserted and fixed to an intermediate shaft 19 mounted on the machine base 1, while a pulley 20 is loosely inserted into the intermediate shaft 19, and A pulley 21 is inserted into and fixed to the support shaft 3 and a belt 22 is wound between the pulleys 20 and 21, and a clutch 23 for interlocking and interlocking between the intermediate shaft 19 and the pulley 20 is provided. The support shaft 3 of the wheel 2 can be arbitrarily linked to the main shaft 14 of the pump device 8 by the on / off operation of the clutch 23 by the clutch lever 11.

According to the power sprayer having the above-described configuration, the upper portion of the handlebar 9 is used when the airframe is carried from the home storage location to the field or when getting on and off the transportation vehicle, particularly when transferring the vehicle to the vehicle bed. The traveling movement is performed by grasping the portion 9a and pulling or pushing the machine base 1. At this time, the engine 5 is operated to drive and rotate the main shaft 14 of the pump device 8, and the pump device 8 The discharge of the chemical solution is set to the unload state, and in this state, the operating lever 11 is operated to operate the clutch 23 to the “engaged” side to transmit the power of the engine 5 to the support shaft 3 of the wheel 2. . As a result, the power of the engine 5 can be used for the traveling movement of the machine base 1, and the pushing and pulling force by the worker of the machine base 1 is assisted. The machine 1 can be easily transported.

On the other hand, when performing spraying work in a small-scale field or the like, the main shaft 14 of the pump device 8 is operated by the operation of the engine 5 while holding the upper portion 9 a of the handlebar 9 and pulling or pushing the machine base 1. By driving and rotating, the chemical solution in the chemical solution tank 4 is discharged from the pump device 8 and sprayed from the spray nozzle at the end of the hose 13. During the spraying, the wheel 2 is moved to a soft ground portion or a dent portion in the field. It often happens that the aircraft drops and the aircraft cannot travel. In such a case, as described above, a part of the power from the engine 5 is transmitted to the support shaft 3 of the wheel 2 to assist the operator in pushing and pulling the machine 1 to the soft ground portion. Escape from the concave portion can be performed without difficulty. If the output of the engine 5 has a sufficient margin, that is, if the engine 5 having an output higher than the power required for driving the pump device 8 is mounted, the operating lever 11 is operated to release the clutch. 23 is moved to the “entering” side to transmit a part of the power of the engine 5 to the support shaft 3 of the wheels 2 to assist the operator in pushing and pulling the machine base 1, thereby reducing the burden on the operator. Can be reduced. That is, the traveling movement of the machine 1 is performed at a walking speed of the worker of about 4 to 5 km / H, and for example, 70% of the driving force required for the traveling movement of the machine 1 is transmitted from the engine 5. With the power of, the remaining 30% is set to be performed by the push and pull force of the worker, and the push and pull force by the worker to the machine base 1 is assisted. To reduce As a result, the operator can travel and move the machine base 1 with a small amount of labor with a small force. Note that a configuration may be adopted in which the traveling speed of the airframe, the pushing / pulling force of the operator, and the like are detected using a microcomputer, and the output is fed back to the engine 5 to control the output.

[0016]

[Effect of the invention]

 As described above, according to the power sprayer of the present invention, when the aircraft travels on the road to carry it from the storage location at home to the field or gets on and off the transport vehicle, particularly when the aircraft is transferred to the vehicle carrier. In addition, it is possible to use the power from the prime mover by transmitting the power from the prime mover to the wheels by transferring the power from the prime mover to the wheels by gripping the steering wheel. It can be done safely and easily with little burden with little power.

The spraying operation by the pump device in the field is performed while running by pulling or pushing the machine base with the grip handle. Using the partial power of the prime mover to drive the machine, the traveling of the machine base can be assisted, so that the spraying work in the field, etc. can be performed easily with little burden on the operator.

In addition, since the main shaft of the pump device is simply extended to the outside of the device using a general backpack type power sprayer, the structure does not become complicated and large. It has a practical effect that can be implemented simply and inexpensively.

[Brief description of the drawings]

FIG. 1 is a front view of a power sprayer according to an embodiment of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is an enlarged longitudinal sectional front view of the essential part.

FIG. 4 is an enlarged longitudinal sectional side view of the essential part.

[Explanation of symbols]

 Reference Signs List 1 machine stand 2 wheels 4 chemical tank 5 engine (motor) 8 pump device 9 handle rod 14 main shaft 16 protruding shaft portion 23 clutch 24 output shaft

Claims (2)

[Utility model registration claims] 1. A power sprayer having a chemical solution tank, a prime mover, and a pump device mounted on a machine base, wherein the prime mover drives a pump device to spray a chemical solution in the tank. While the support shaft of the traveling wheel is mounted on the lower part and a grip handle protruding above the machine base is provided, the main shaft of the pump device is protruded outside the device,
A power sprayer characterized in that a wheel support shaft is interlockedly connected to the protruding shaft portion via a clutch for interrupting power transmission. 2. A power sprayer having a chemical solution tank, a prime mover, and a pump device mounted on a machine base and configured to drive the pump device by the prime mover to spray the chemical solution in the tank. While the traveling wheel is mounted on the lower part and a grip handle protruding above the machine base is provided,
A power sprayer characterized in that a wheel support shaft is interlockedly connected to an output shaft of the prime mover via a clutch for interrupting power transmission.