JPS643745Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) This proposal concerns a walking rice transplanter.

(Prior art) In conventional walk-behind rice transplanters, engine cooling air is taken in from below.

(Problem that the invention aims to solve) As described above, with the system in which cooling air is taken in from below, engine trouble occurs when muddy water is sucked in in deep-water fields.

Also, if the aircraft leans forward in the field, the engine is likely to get splashed with muddy water because the engine is located at the front of the aircraft.

Therefore, the purpose of this invention is to obtain a walking rice transplanter that is not affected by muddy water in the field.

(Means for solving the problem) In order to achieve the above objectives, the walking rice transplanter of the present invention is constructed as follows.

In other words, a vertical air-cooled engine that can take in cooling air from above is used as the power source for the traveling transmission, and the crankshaft is arranged in a vertical direction, and the bottom surface of the transmission case and the float are continuous when viewed from the side. The mission case has a floating function.

(Example) The embodiments shown in the drawings will be described below.

First, general points of walking rice transplanters will be explained.

The first diagram shows a walk-behind rice transplanter with an engine 1 mounted on the front of the machine and a control handle 2 on the rear of the machine. A pair of left and right wheels 3, 3 that run on the ground work together with a float 4 that slides on the mud surface, allowing the aircraft to move while supporting it.

Behind the wheels 3, 3 are a seedling stand 5 tilted forward and a planting claw 6 that is driven to rotate up and down.
A planting section 7 consisting of a seedling tray 5 is provided, and as the seedling tray 5 moves horizontally, one block of seedlings is successively scraped from the seedling tray 5 with a planting claw 6 and planted in the field. ing.

In addition, there is a spare seedling stand 8 between the wheels 3, 3.
When there are fewer seedlings on the seedling platform 5 from this preliminary seedling platform 8, the seedlings are replenished to the seedling platform.

The wheels 3, 3 are also attached to the rear end of the swing case 9, which rotates around the mission case, and the float 4 swings at the front end, using the attachment part of the planting height adjustment handle 10 as a fulcrum. Arm 11
Together with this, it is beginning to oscillate.

This proposal is based on the above-mentioned walk-behind rice transplanter.
As shown in FIG. 2, the engine 1 is a vertical air-cooled engine that can take in cooling air from above, and its crankshaft is arranged vertically.
The crankshaft and the gears of the swing case are used as gear transmission.

That is, 12 is a carburetor, 13 is an engine case, 14 is a crankshaft, and 16 is an air intake port, and this crankshaft 14 is vertical.

The crankshaft and the gears of the swing case 9 are interlocked with each other.

According to the above, the cooling air enters from above and exits in a downward direction, so water is not sucked in even in muddy fields, and since the vertical air-cooled engine has a vertical crankshaft, it is easy to take in cooling air from above. It can be a structure.

Also, since there is no need to worry about water intake, the engine can be placed in a lower position to lower the center of gravity.

Furthermore, reference numeral 15 denotes a transmission case of the engine, and the transmission case 15 and the float 4 are configured to form a continuous bottom surface when viewed from the side.

With this structure, even if the aircraft leans forward when turning in the field, the transmission case will stop the aircraft, and the engine will not be immersed in muddy water, thereby protecting the engine from water.

Furthermore, since the transmission has a float function, the float 4 can be made smaller.

In any case, the engine will not be covered with muddy water, so no engine trouble will occur.

Note that if the carburetor is installed in the opposite direction from the drawing, it is possible to create a structure in which the wheels are brought closer to the engine.

(Effect of the invention) A vehicle in which the engine is arranged so that the crankshaft is vertical is known from Publication No. 53-2700. However, if a walk-behind rice transplanter used in fields with muddy water is equipped with an engine that sucks cooling air from below, muddy water can easily be sucked in, leading to engine trouble. happens. In this case, the cooling air for the engine enters from above and exits downward, so it does not suck in water even in deep water fields, which prevents engine trouble.It is also a vertical air-cooled engine with a vertical crankshaft, which directs the cooling air upward. The engine can be installed in any direction around the crankshaft. Also, since there is no need to worry about sucking muddy water, the center of gravity can be lowered by placing the engine in a lower position, making it easier to turn in the field. Furthermore, even if the aircraft leans forward during a turn, the transmission case has a float function, so the engine will not lean forward to the extent that it will be covered in muddy water.

Additionally, the mission case has a float function, so the float can be made smaller.

[Brief explanation of the drawing]

FIG. 1 is a front view of a walking rice transplanter showing the device of the present invention, and FIG. 2 is a cutaway partial view of the same. 1...Engine, 9...Driving transmission.

Claims (1)

[Scope of utility model registration request] The walking mission is powered by a vertical air-cooled engine that can take in cooling air from above, and its crankshaft is vertically oriented, and when viewed from the side, the bottom of the mission case and the float are continuous. A walk-behind rice transplanter that has a bottom shape and a transmission case with a float function.