JPS6035375Y2 - Self-propelled rice transplanter - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a self-propelled rice transplanter.

When a rice transplanter is run at extremely high speeds even though the field is soft, the ground floats can cause a large amount of mud to flow, causing the already planted seedlings to fall over, causing disturbances in the mud layer caused by the ground floats. Therefore, the present invention makes it possible to easily and reliably suppress the disturbance of the muddy soil layer due to the movement of the aircraft, while easily and reliably preventing the above-mentioned negative effects of muddy soil on the already planted seedlings. The purpose is to enable work to be done.

Next, embodiments of the present invention will be described based on illustrative drawings.

As shown in Fig. 1, there are five seedling planting devices 1 arranged in parallel in the lateral direction of the machine, a seedling stand 2 for supplying seedlings to these seedling planting devices 1, and a machine body. A seedling planting section equipped with three ground floats 3 arranged in parallel in the direction of lateral force is connected to the rear part of the body of the self-propelled vehicle by a link mechanism 4 so that it can be raised and lowered, and the said self-propelled vehicle A five-row type riding rice transplanter is used to transmit rotational power from the seedling planting section to the seedling planting section.

The fuel supply mechanism for the engine 5 of the self-propelled vehicle is constructed by, as shown in FIG.
An auxiliary tank 8 equipped with an air vent pipe 7 is connected to a fuel receiving pipe 10 with a check valve 9 to the main tank 6,
In addition, the oil supply pipe 11 is connected to the engine 5 so that the oil in the main tank 6 is supplied to the engine 5 via the auxiliary tank 8, so that the aircraft does not tilt significantly forward or backward. Even if the oil outlet of the main tank 6 becomes higher than the oil level, the oil in the auxiliary tank 8 is supplied so that the engine 5 does not stop, or as shown in FIG. and auxiliary tanks 8 are placed on the front and rear sides of the aircraft from the engine 5 and on the left and right sides of the aircraft, and are connected to the engine 5 separately through fuel supply pipes 19. Fuel is supplied from either the main tank 6 or the auxiliary tank 8 to prevent the engine 5 from stopping.

In the seedling section, as shown in FIG.
The sensor 13 is attached to a support shaft 12 attached to the holder so that it can swing freely into the mud layer A in the working position of the seedling planting section, and is biased to swing by a spring 14 to detect changes in the resistance of the mud. The swing angle θ of the sensor 13 changes with
It is designed to detect the hardness of the mud layer A by knowing this.

The sensor 13 and the engine accelerator device 1
The operation swing arm 16 of No. 5 is linked with the swing member 17 linked to the sensor 13 and the push/pull wire 18, so that even if the detected hardness is less than the set value and the aircraft is run when the hardness is at that hardness. When the aircraft is running at a higher speed than a preset speed that does not cause large disturbances to the mud layer, the accelerator device 15 is operated to the low rotation side and the aircraft running speed is automatically adjusted to the set speed. Even if the field is soft,
Based on the detection of the altitude of the mud, the traveling speed of the aircraft is automatically controlled to a level that can prevent the occurrence of significant disturbance of the mud layer A caused by the grounding float 3, allowing work to be carried out while preventing the negative effects of the mud on the already planted seedlings. It is configured so that it can be performed.

In addition, instead of the sensor 13, it is pressed against the mud surface,
A device configured to detect the amount of subsidence into the mud accompanying this can also be used, and these are collectively referred to as the field hardness detection mechanism 13.

Further, instead of the accelerator device 15, a transmission may be configured to be switched and operated, and these are collectively referred to as the aircraft running speed changing mechanism 15.

Furthermore, an electrical configuration may be adopted as a linkage configuration between the hardness detection mechanism 13 and the speed change mechanism 15.

In addition, in addition to the machine speed control based on the field hardness detection, if a control configuration is provided that changes the machine speed based on the detection of water depth above the mud layer A, it will cause the adverse effects of ice on the already planted seedlings. It is preventable and even more beneficial.

Further, the present invention can also be applied to a walking rice transplanter.

In summary, in the self-propelled rice transplanter according to the present invention, the field hardness detection mechanism 13 and the machine body running speed changing mechanism 15 are configured such that when the detected hardness is below the set value and the machine body running speed is lower than the set speed corresponding to the hardness set value. The present invention is characterized in that when the vehicle is traveling at high speed, the traveling speed of the aircraft is automatically decelerated to the set speed.

In other words, even if the field is soft, the traveling speed of the aircraft is automatically controlled so that the disturbance of the mud layer A caused by the ground float 3 does not increase significantly, so that extreme disturbance of the mud layer A due to the movement of the aircraft can be avoided. It can be easily and reliably prevented.
It is now possible to easily and reliably prevent troubles such as the already planted seedlings falling over due to the muddy soil being flowed by the float 3.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the self-propelled rice transplanter according to the present invention, in which Fig. 1 is an overall side view of the riding rice transplanter, Fig. 2 is a plan view of the refueling structure, and Fig. 3 is an illustration of the traveling speed control mechanism. FIG. 13... Hardness detection mechanism, 15... Speed change mechanism.

Claims (1)

[Scope of utility model registration request] The field hardness detection mechanism 13 and the machine running speed changing mechanism 15 change the machine body running speed to the set speed when the detected hardness is below the set value and the machine running speed is higher than the set speed corresponding to the hardness setting value. A self-propelled rice transplanter characterized by being linked to automatically reduce speed.