JPH0529095Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention allows the engine to be started manually and pest control work to be performed while manually operating the operating part driven by the plunger pump using the pressure regulating lever. Regarding power sprayers.

[Conventional technology]

Conventionally, in a power sprayer that has an engine with a recoil starter, a pump, etc. installed inside the machine frame below the chemical tank, the pump is of a rotary type, and the recoil starter of the engine moves the entire machine body. It was designed to be installed at the rear on the opposite side.

[Problem that the invention attempts to solve]

Therefore, the amount of spray can be adjusted using a throttle control device for the engine, but in the case of a backpack type, you cannot operate the rear recoil starter while carrying it on your back, so you have to lower the aircraft and start the engine each time. Furthermore, when working with a mobile wheel-type machine while moving between the rows of crops, the worker must move around the side of the machine while it is stationary to operate the recoil starter at the rear, making it difficult to carry out the work. This had problems such as damage to crops on the side due to the movement of people, and the need to perform a troublesome operation to start the engine.

[Means for solving problems]

The present invention solves this problem by making it possible to properly adjust the spray amount using a pressure regulating lever, and making it possible to easily operate the pressure regulating lever and the engine start-up. The engine is mounted so that the crankshaft is obliquely inclined with respect to the lateral plane perpendicular to the direction of movement of the aircraft, which is either a wheel-moving type or one of these types, and a plunger pump is connected to the engine. , a pressure regulating lever connected to the plunger pump side is arranged near one lateral side of the machine body, and the starter handle is pulled out along the other lateral side of the machine body in a direction slightly inclined with respect to the moving direction of the machine body. The recoil starter is placed on the other side of the fuselage so that it can be used.

[Effect]

Therefore, the spray amount can be adjusted well using the pressure regulating lever, and with the backpack type, the pressure regulating lever and engine start can be easily operated while carrying it on the back. This means that the operator can easily operate the pressure regulating lever and start the engine without moving inside.

〔Example〕

Next, the embodiment shown in the drawings will be described.

Figure 2 shows a side view of the power sprayer with the spray pipe removed.The lower front of the front frame 2a, which stands up on the front side of the machine frame 2 that frames the pipes, has a vertical axis perpendicular to the moving direction A of the machine. A backrest 7 parallel to the lateral plane is stretched, and both shoulder bands 9, 9 are connected from the metal fitting 8 at the upper end of the front frame 2a to both sides of the lower part to form a backpack-style configuration. A narrow stand 10 is extended from the frame 2b to the rear lower part, and the lower frame 2
On both sides of b, two wheels 11, 11 whose axles are parallel to the lateral plane b are removably mounted on axles to form a wheel movable structure.

A chemical tank 1 is installed above the machine frame 2,
An engine 4 connected to a recoil starter 3 with a starter handle 3a located on the left side of the machine body is fixed above the lower frame 2b which is inside the machine frame 2. A plunger pump 5 is connected to one side via a reducer 12 with a clutch mechanism, and the plunger pump 5 has a pressure regulating valve portion with a pressure regulating lever 6 at the tip thereof located on the right side and the other side of the fuselage. A chemical liquid stirring pipe 14 and a suction pipe 15 are connected between the pressure regulating valve section 13 and the rear part of the plunger pump 5 and the chemical liquid tank 1.
A conventional spray pipe having an annular four-headed port at its tip can be connected to the discharge port 16 of the plunger pump 5 via a spray hose. The engine 4 is tilted and fixed so that the axial direction C of the crankshaft of the engine 4 is inclined obliquely at a slight angle θ with respect to the lateral plane B, and the starter handle 3a is positioned rearward from the backrest 7. However, the pressure adjustment lever 6 is provided so that it can be pulled out diagonally forward in the direction of arrow D along the lateral side of the aircraft at a slight incline with respect to the moving direction of the aircraft. It is arranged so as to be close to the rear of the backrest 7.

A support tube 18 with a set bolt 17 is vertically fixed to the upper left side of the front frame 2a of the machine frame 2, and a handle rod 21 bent in an L shape has a grip 19 and a throttle lever 20 at the tip. When moving the other end side, from above the support tube 18,
Further, when carrying out work on the back, the support tube 18 is configured to be inserted from below and can be changed to the upper or lower position.

Therefore, when carrying out pest control work while moving the machine using the wheels 11, 11, the handle bar 21 is attached to the upper side as shown in FIGS. This means that the worker can carry out pest control work by grasping the handle rod 21 with one hand and pulling the machine in the moving direction A, while operating the spray pipe with the other hand. Operate the pressure lever 6,
The engine 4 can be started by pulling the starter handle 3a forward in the direction of arrow D.

In addition, when performing pest control work carried on one's back, remove both wheels 11, insert the handle rod 21 from below the support tube 18 and reposition it to the lower side, and hang both shoulder bands 9, 9 on both shoulders. While carrying it on your back, you can perform pest control work by gripping the handle rod 21 with one hand and operating the spray pipe with the other hand, but you can also operate the pressure regulating lever 6 with your right hand, which holds the spray pipe. This means that the engine 4 can be started by grasping the starter handle 3a with the left hand and pulling it forward in the direction of arrow D.

[Effect of idea]

In this way, in the case of a backpack-type power sprayer, the present invention allows you to press the pressure adjustment lever with one hand while carrying it on your back.
In addition, the starter handle 3a can be easily operated with the other hand when starting the engine, and in the case of a wheel-moving power sprayer, the operator who is moving the machine can easily operate the pressure adjustment lever without moving from that position. 6
In addition, the starter handle 3a can be easily operated when starting the engine, and the spray amount can be adjusted using the pressure regulating lever 6. This makes it possible to easily start the engine 4 with good operability without damaging the crops.Moreover, since the engine 4 is inclined with respect to the lateral plane R in a plan view, the diagonal line of the rectangle Since the length of the engine 4 can be used effectively, the mounting space for the engine 4 and related parts can be reduced, resulting in a compact structure, and the operability can be improved, making it suitable for implementation. .

[Brief explanation of drawings]

Figure 1 is a plan view of the main parts of an embodiment of the present invention;
FIG. 2 is a side view of the power sprayer, and FIG. 3 is a rear view thereof. 1... Chemical tank, 2... Machine frame, 3... Recoil starter, 4... Engine, A... Movement direction,
B... Lateral surface, 5... Plunger pump, 6...
...Pressure adjustment lever, 3a...Starter handle.

Claims (1)

[Scope of utility model registration request] In an aircraft in which an engine 4 with a recoil starter 3, a pump, etc. are installed inside the machine frame 2 below the chemical tank 1, the direction of movement of the machine is perpendicular to the moving direction A of the backpack type and/or wheel moving type. The engine 4 is mounted so that the crankshaft is inclined diagonally with respect to the lateral plane. A plunger pump 5 is connected to the engine 4, and a pressure regulating lever 6 connected to the plunger pump 5 side is attached to the machine body. The recoil starter 3 is placed near one lateral side of the aircraft so that the starter handle 3a can be pulled out along the other lateral side of the aircraft in a direction slightly inclined to the moving direction of the aircraft. A power sprayer characterized by being configured to be placed on the side.