JPS6327804Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a sprayer used for spraying herbicides, watering, etc., for example.

As is well known, large-sized spreaders of this type are used by being pulled by a tractor or the like, but small-sized ones currently rely on human power. In other words, one person was carrying a power sprayer on his back, and the other person was carrying a tank containing chemicals, etc., and the two people were spraying.

Therefore, there is a desire for a simple sprayer that can be used by one person to spray in these small-scale fields.
The one described in Japanese Patent No. 52-70410 is known.

This conventional self-propelled power sprayer has a machine frame that is supported low by a traveling device placed in the center of the machine body, a chemical tank mounted on the front side and an engine mounted on the rear side, located on the machine frame. A pump is disposed below the machine frame, a power transmission mechanism is provided for transmitting the power of the engine to the pump and the traveling device via a clutch device, and a jet pipe is disposed above the machine frame. It was something that was established by the government.

The above conventional power sprayers have the advantage of having a low center of gravity and a stable balance of the machine, but because the engine and pump are located behind the wheels, they lack stability in the front-to-rear balance.In addition, the front-to-rear balance is easily affected by the amount of chemical in the tank.

Therefore, an object of the present invention is to provide a sprayer that can always maintain a stable balance in the front-rear direction regardless of the increase or decrease of the chemical solution in the tank. Therefore, its characteristic feature is that the frame is supported at the center in the width direction by a single wheel, has a power sprayer at the front, an engine at the rear, and a tank between them and directly above the wheel. A caster type auxiliary wheel is provided at the center of the front part of the frame in the left and right width direction, and a rearwardly protruding handle rod is provided extending from both left and right sides of the frame, and the power of the engine is applied to the power spray. A power transmission means is provided for transmitting power to the sprayer and the wheels, respectively, and the tank and the power sprayer are communicated through a communication pipe.

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

In the case shown in Figures 1 and 2, the reaping part and binding part of the binder are removed, a tank and a power sprayer are mounted on the frame, and the power from the reaping part is used to drive the power sprayer. A modified binder single-wheel spreader 1 is illustrated.

Reference numeral 2 denotes a frame, in which cylindrical members 3 and 4 are arranged on both left and right sides, and the cylindrical members 3 and 4 are connected by a wheel mount 5. Both left and right ends of the wheel mount 5 are bent and extended downward, and an axle 6 is mounted on the lower end thereof, and one wheel 7 is provided on the axle 6 to form a unicycle.

An engine 8 is attached to the rear end of the cylindrical members 3 and 4 of the frame 2, and two power take-off shafts 10 and 11 are provided in the transmission case 9 on one side. is a pair of bevel gears 1
A transmission shaft 14 passing through the cylindrical member 3 is driven through the shafts 2 and 13, and the other shaft 11 drives the axle 6 through a winding transmission mechanism 15. 16 is a transmission case that protects the winding transmission mechanism 15.

A fuel tank 17 is arranged above the engine 8 so as to cover the engine 8. A stand 18 is attached to the bottom of the engine 8, and a stand 19 is attached to the bottom of the engine 8.
1 is an unstable switching spring, which is held at the position shown by the solid line in FIG. 1 when the stand 18 is in use, and is retracted to the position shown by the imaginary line during work.

Reference numeral 20 denotes a power sprayer, which is installed at the front of the frame 2. The sprayer 20 is removably inserted into one cylindrical member 4, and is inserted onto the cylindrical member 3 into which the other transmission shaft 14 is fitted. It is fixed on a mounting base 21 which is removably placed. A gear case 22 is provided at the tip of the cylindrical member 3 into which the transmission shaft 14 is fitted, and the case 22 supports one horizontal shaft 23. Rotation is transmitted to the horizontal axis. The power sprayer 20
A pulley 2 is connected to the input shaft 26 and the horizontal shaft 23.
7 and 28 are provided, and a belt 29 is wound between the pulleys 27 and 28. The engine 8
The output is transmitted to the transmission shaft 14 via the transmission case 9, and the power sprayer is driven from the transmission shaft 14 via the horizontal shaft 23 and input shaft 26. The transmission case 9 is provided with a clutch for switching and driving the wheels 7 and/or the power sprayer 20. Thus, the power from the engine 8 is transmitted via the power transmission means configured as described above.

Reference numeral 30 denotes a handle rod, which includes a vertical rod portion 31 rising upward from the rear of the cylinder members 3 and 4 on both sides, and the vertical rod portion 3.
It consists of a horizontal rod portion 32 extending rearward from the top of the vehicle, and operating portions such as an accelerator, a clutch, a brake, etc. are arranged at the rear end of the horizontal rod portion 32, respectively.

Reference numeral 33 denotes a liquid tank, which is disposed approximately in the center of the frame 2, that is, between the power sprayer 20 and the engine 8. The tank 33 is provided on a tank pedestal 34 that is removably placed on the frame 2. Pins 35 projecting downward are fixed to both sides of the front part of the tank holder 34, while locking members 36 are fixed to the cylindrical members 3 and 4 of the frame 2, into which the pins 35 are removably fitted. The tank holder 34 is attached to the frame 2 by engagement of the pin 35 and the locking member 36.

A dispersing section 37 is provided at the front end of the power sprayer 20. One of the left and right ends of the dispersing section 37 is detachably fixed to the gear case 22, and the other end is connected to the power sprayer 2.
It is removably fixed to a mounting shaft 38 extending forward from the mounting base 21 of No. 0. A dispersion pipe 39 extends from the dispersion portion 37 to both left and right sides, and the dispersion pipe 39 is rotatably supported by a hinge 40 at its base. The dispersing pipe 39 is also supported by an auxiliary wheel 41 provided at the center in the left-right direction.

The liquid tank 33, the power sprayer 20, and the spray pipe 39 are connected to each other through a communication pipe 42, and the liquid tank 33
The liquid passes through the power sprayer 20 and is piped so as to reach the spray pipe 39 from the power sprayer 20, and an opening/closing pot 43 is provided in the middle of the communication pipe 42 between the power sprayer 20 and the spray pipe 39. Handle rod 3
It is set to 0.

Note that the present invention is not limited to the above embodiments, and the binder may not be modified.

According to the present invention, the power sprayer and engine are placed in front and behind one wheel, so
Easy to maintain balance in front and back directions. Moreover, since the tank is placed directly above the unicycle, even if the amount of chemical in the tank changes, it does not affect the balance in the front-rear direction. Furthermore, since caster-type auxiliary wheels are provided at the front of the frame, stability in the longitudinal direction is increased, making driving very easy.

[Brief explanation of the drawing]

FIG. 1 is a side view showing an embodiment of the present invention, and FIG. 2 is a plan view thereof. 2... Frame, 7... Wheels, 8... Engine, 9, 10, 11, 12, 13, 14, 15,
23, 24, 25, 26, 27, 28, 29...
Power transmission means, 20... Power sprayer, 30... Handle rod, 33... Tank, 42... Communication pipe.

Claims (1)

[Scope of utility model registration request] A power sprayer is installed at the front of a frame whose center portion in the left and right width direction is supported by a single wheel, an engine is placed at the rear, and tanks are placed between them and directly above the wheels. A caster-type auxiliary wheel is provided at the center in the width direction, and a rearwardly protruding handle rod is provided on both left and right sides of the frame, and a power transmission means for transmitting the power of the engine to the power sprayer and the wheels, respectively. A sprayer characterized in that the tank and the power sprayer are connected through a communication pipe.