JPS642585Y2 - - Google Patents

Description

[Detailed description of the invention] This invention installs a soil leveling float that can be raised and lowered relative to a seedling planting device so that localized protrusions caused by puddling, etc. can be removed before they are applied to the float. The present invention also relates to a rice transplanter in which an auxiliary ground leveling tool is provided in front of the float.

In the conventional above-mentioned method, the auxiliary ground leveling tool is integrally attached to the seedling planting device, and when the float descends relative to the seedling planting device, the auxiliary ground leveling tool rises more than the float, and the auxiliary ground leveling tool rises to a greater extent than the float. can't work,
There was an inconvenience that the float was moved up and down unnecessarily.

In view of the above points, an object of the present invention is to make it possible to suppress unnecessary vertical displacement of a float caused by local protrusions.

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

A seedling planting device 5 is installed at the rear of a traveling vehicle body on which wheels 1 are mounted on front and rear wheels, and a control section 2 is arranged, which can be driven up and down via a link mechanism 3 and a hydraulic cylinder 4.
are linked together to form a riding rice transplanter.

A center float 6a of the floats 6 pivotally connected to the lower part of the seedling planting device 5 is provided so as to be movable up and down while biased toward the downward displacement side, and based on the up and down displacement with respect to the seedling planting device 5. It also serves as a ground sensor for detecting the level of the seedling planting device 5 with respect to the planting mud surface, and the front bent link 7 of the center float 6a and the control valve V for the cylinder 4 are interlocked and connected. , the control valve V is automatically operated based on the vertical displacement of the sensor float 6a with respect to the seedling planting device 5, and the level of the seedling planting device 5 relative to the planting mud surface is maintained within a set range. be.

On the front end side of the center float 6a, its lower end is located above the lowest end of the ground leveling surface F of the float 6a, and the ground leveling surface F
The auxiliary ground leveling tool 8 is installed in a state where F ₁ is tilted more steeply to the ground than the float-side ground leveling surface F, and the ground reaction force causes the center float 6 to
The local protrusions caused by plowing etc. are scraped off with the auxiliary leveling tool 8, while minimizing the force that would raise it on the surface of a. The structure is such that it is possible to avoid the float 6a being moved up and down due to the movement of the seedlings, and the seedling planting device 5 being controlled to move up and down more than necessary due to this.

Incidentally, when the auxiliary soil leveling tool 8 is attached to the center float 6a which is also used as a soil leveling sensor as in the above-mentioned embodiment, there is an extremely remarkable advantage that the raising and lowering of the seedling planting device 5 can be controlled in a stable state. However, as the present invention, other floats 6
...In that case, the auxiliary ground leveling tool 8
By eliminating the ridges, unnecessary vertical displacement of the float 6 can be avoided, and the lifting force is transmitted to the seedling planting device 5 via the float 6, resulting in rolling, etc.
This has the advantage that fluctuations in the attitude of the seedling planting device 5 relative to the ground can be suppressed.

In summary, the present invention provides the above-mentioned rice transplanter in which the lower end of the auxiliary soil leveling tool 8 is located above the lowest end of the soil leveling surface F of the float 6a, and the soil leveling surface F ₁ is tilted more steeply relative to the ground than the float-side ground leveling surface F, and is attached to the float 6a so as to be able to rise and fall integrally therewith.

In other words, since the float 6a is installed with the lower end of the auxiliary soil leveling tool 8 positioned above the lowest end of the soil leveling surface F of the float 6a, regardless of the vertical displacement of the float 6a with respect to the seedling planting device 5. First, local raised parts can be reliably removed by the auxiliary soil leveling tool 8 without separating from the float 6a, and the planting mud surface with the raised parts removed can be leveled well by the float 6a, It is possible to prevent the float 6a from moving up and down due to the raised part, and by simply attaching the auxiliary ground leveling tool 8 to the float 6a, the ground reaction force is reduced as the auxiliary ground leveling tool 8 acts on the raised part. However, according to the present invention, since the auxiliary ground leveling tool 8 is placed in a steeply inclined position relative to the ground, the force that causes the float 6a to rise due to the action on the raised portion is
As a whole, it is possible to suppress the vertical displacement of the float 6a caused by local protrusions, and when applied to the float 6a which is also used as a sensor for vertical control, On the other hand, when applied to the float 6 for land leveling, it is extremely advantageous in practical terms, such as being able to level the ground well while suppressing vertical displacement caused by ridges and suppressing the occurrence of rolling, etc. I was able to do it.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the rice transplanter according to the present invention; FIG. 1 is an overall side view, FIG. 2 is an enlarged side view of the main parts, and FIG. 3 is a plan view of the main parts. 5...Seedling planting device, 6a...Float, 8...
Auxiliary ground leveling tool, F...Float side leveling surface, F ₁
...Grade leveling surface on the leveling tool side.

Claims (1)

[Claims for Utility Model Registration] A soil leveling float 6a is attached to the seedling planting device 5 so as to be able to rise and fall freely, and the float 6a
A rice transplanter is provided with an auxiliary soil leveling tool 8 in front of the rice transplanter, the lower end of the auxiliary soil leveling tool 8 is located above the lowest end of the soil leveling surface F of the float 6a, and the surface leveling surface F of the float 6a is A rice transplanter characterized in that the surface _F1 is tilted more steeply relative to the ground than the float-side ground preparation surface F, and is attached to the float 6a so as to be able to rise and fall integrally therewith. A request for registration of a utility model characterized in that the float 6a is also used as a sensor that detects the level of the seedling planting device 5 relative to the planting mud surface based on the vertical displacement with respect to the seedling planting device 5. The rice transplanter described in the Scope section.