JPS6036012Y2 - Riding rice transplanter - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a riding rice transplanter configured to raise a seedling planting device when replenishing seedlings.

Conventionally, in the above-mentioned riding rice transplanter, when replenishing seedlings, the amount of remaining seedlings in the seedling planting device was detected artificially, the seedling planting device was raised artificially, the vehicle body was stopped artificially, and the seedlings were reserved. Generally, various human operations are required, such as artificially supplying seedlings to the seedling planting device, artificially lowering the seedling planting device, and artificially moving the vehicle body, and it is desirable to simplify the human operations as much as possible. It is rare.

The present invention is a distant relative of the above-mentioned needs and aims to enable the planting of desirable seedlings, and in the officially registered riding rice transplanter, a drive mechanism for raising and lowering the seedling planting device with respect to the vehicle body is provided.
An automatic control mechanism that operates to raise the seedling planting device to a set position for replenishing seedlings based on detection that the amount of seedlings in the seedling planting device has decreased to a set amount, and a mechanism that automatically stops the vehicle from traveling. It is characterized by having the following.

In other words, when the amount of seedlings in the seedling planting device decreases to a set amount that requires replenishment, the seedling planting device is automatically driven upward to the seedling replenishment position, which prevents artificial seedling replenishment timing. This eliminates the need for confirmation and raising the seedling planting device, making it possible to reliably and easily perform good seedling planting without missing plants.

Moreover, at the same time, the movement of the aircraft is automatically stopped,
It is now possible to plant seedlings without the disadvantage of unnecessarily disturbing the mud surface and causing deep planting or floating seedlings.

In other words, if the pilot does not know that it is time to replenish seedlings, or misses the timing, the aircraft will move forward with empty seedlings.

Therefore, if you try to replenish seedlings and restart planting, you will have to move the aircraft backwards to the initial position for aerial planting, which will result in the planting surface being greatly disturbed, resulting in deep or shallow planting, or floating seedlings. However, by detecting that the amount of seedlings in the seedling planting device has decreased to a set amount that requires replenishment as in the present invention, and automatically stopping the device based on this detection result, , this drawback can be successfully solved.

Embodiments of the riding rice transplanter of the present invention will be described below with reference to the drawings.

A towing vehicle 3 is equipped with spare seedling storage devices 1, 1 on the left and right sides of the front of the vehicle body, and a hydraulically driven link mechanism 2 at the rear of the vehicle body, and six of them move up and down along a fixed rotation trajectory. Seedling planting section 4..., inclined seedlings that reciprocate from side to side with the movement of the seedling planting section 4 with the seedling take-out port facing the movement trajectory of the seedling planting section 4... The seedling planting device 7 is equipped with a platform 5, three floats 6 that slide on a muddy surface and ground the seedling planting area in advance, and the seedlings are transferred to the towing vehicle 3 via the link mechanism 2. In addition to connecting the planting device 7, the rear transmission 8 of the towing vehicle 3 and the input section of the seedling planting device 7 are connected by a rotating shaft 9.

The seedling planting device 7 is raised and lowered relative to the towing vehicle body by operating the link mechanism 2, and the power of the towing vehicle engine 10 is transmitted to the seedling planting device 7 via the rotating shaft 9. .

To configure the link mechanism 2, as shown in FIG.
A pair of left and right swinging arms 12, 12 driven by a single-acting cylinder 11, a pair of left and right lower links 13, 13 that pivotally connect the seedling planting device 7 and the towing vehicle body are attached to the rear transmission 8. , lift rods 14, 14 are provided on each of the left and right sides to pivotally connect the swing arm 12 and the seedling planting device frame 7a, and a position where hydraulic oil is supplied to the cylinder 11, and a position of the seedling planting device 7 are provided. A control valve 16 is provided in the hydraulic circuit for the cylinder 11 and is switched by a lever 15 to a position where hydraulic oil can be discharged from the cylinder 11 by its own weight and a position where the cylinder can be collapsed.

When the seedling planting device 7 is driven upward, the arms 13 and 13 are swung upward by the cylinder 11, and when the seedling planting device 7 is lowered, the swinging arm is caused by the gravity of the seedling planting device 7. It is designed to swing downward by 12 degrees.

A seedling planting device control mechanism 19 is provided, which includes a first detection mechanism 17 for the amount of seedlings in the seedling table 5 and a mechanism 18 for operating the link mechanism 2 based on the results of the first detection mechanism 17.

That is, to configure the first seedling quantity detection mechanism 17, as shown in FIG. The switch 22 is provided so as to be biased to protrude to a preset level at which the upper end of the seedling 21 will be located when the remaining amount of the seedling 21 reaches the amount that requires seedling replenishment, and the switch 22 is interlocked with the rocking piece 20. It is a provision.

When the upper end level of the seedlings 21 vertically fed along the seedling platform 5 falls below the level of the swinging piece 20 and the pressing action of the seedlings 21 is released, the swinging piece 20 assumes the above-mentioned protruding position and the seedlings are grown. When it is detected that the amount has decreased to a set amount, the switch 22 is operated to close and the detection result is transmitted.

Further, as shown in FIG. 2, the link operation mechanism 18 includes an electromagnetic valve 23 that can be switched between a position for supplying hydraulic oil to the cylinder 11 and a position for locking the cylinder 11. The arm is installed in the circuit in parallel with the control valve 16, and is set in advance at a position corresponding to locating the seedling planting device 7 at a height above the ground where seedlings can be easily replenished to the seedling stand 5. A limit switch 24 is provided for detecting the swing position of the first detection mechanism switch 22 and transmitting the result, and further controlling the electromagnetic valve 23 based on the signal from the first detection mechanism switch 22 and the signal from the limit switch 24. A mechanism 25 is provided.

Then, when a signal is sent from the first detection mechanism switch 22,
When the electromagnetic valve 23 is operated to the cylinder drive position by the control mechanism 25 and a signal is sent from the limit switch 24,
The control mechanism 25 operates the electromagnetic valve 23 to the cylinder lock position.

That is, when replenishing seedlings, it is necessary to monitor the remaining amount of stored seedlings in order to know when to replenish them, and to operate the link mechanism 2 to raise the seedling platform 5 from the ground to a position where it is easy to replenish the seedlings. Even if the operator does not do this, the automatic control mechanism 19 automatically raises the seedling planting device 7 to the set position when the amount of seedlings decreases to the set amount and it is an appropriate time to replenish the seedlings. It is like that.

Furthermore, a second seedling amount detection mechanism 28 consisting of a rocking piece 26 similar to the rocking piece 20 and a switch 27 interlocked with the rocking piece 26 is provided, and the rocking piece 26 is replaced with a first detection mechanism rocking piece. 20
A lamp 29 is provided at a higher level than the installation level of the tow vehicle 3, and a lamp 29 is provided in front of the control section of the tow vehicle 3, and is caused to blink by the action of a blinking mechanism 34 based on a signal from the second detection mechanism switch 27. be.

In other words, the second detection mechanism 28 detects that the amount of seedlings has decreased before reaching the set amount for replenishment, and the lamp 29 notifies the result. This allows you to know the key points for replenishment in advance.

Incidentally, the lamp 29 may be replaced with various notification mechanisms such as a bell or a buzzer, and these are collectively referred to as the notification mechanism 29.

Further, a clutch 31 that disconnects power transmission from the engine 10 to the driving rear wheels 30, 30, and a control device 32 that disconnects and operates the clutch 31 based on a signal from the first detection mechanism switch 22, A vehicle automatic stop mechanism 33 is provided.

That is, based on the detection that the amount of seedlings has decreased to the set amount for replenishment, the towing vehicle 3 is automatically stopped, thereby eliminating the need for a vehicle body stop operation associated with replenishing seedlings.

[Brief explanation of the drawing]

The drawings show an embodiment of the riding rice transplanter according to the present invention. Fig. 1 is an overall side view of the riding rice transplanter, Fig. 2 is a control system diagram of the seedling planting device, traveling device, and notification mechanism, and Fig. 3 is a control system diagram of the seedling planting device, traveling device, and notification mechanism. It is a diagram of a mechanism for detecting the amount of seedlings. 2... Drive mechanism, 7... Seedling planting device,
19...Control mechanism, 29...Notification mechanism, 33...Stop mechanism.

Claims (1)

[Scope of utility model registration request] Based on the detection that the amount of seedlings in the seedling planting device 7 has decreased to a set amount, the seedling planting device moves the drive mechanism 2 that raises the seedling planting device 7 relative to the vehicle body to a set position for replenishing seedlings. 7. A riding rice transplanter characterized by being provided with an automatic control mechanism 19 that operates to raise the rice transplanter 7, and a mechanism 33 that automatically stops traveling of the vehicle body.