JPS645465Y2 - - Google Patents

Description

[Detailed description of the invention] This invention has an earth scraping plate on the front part of the float that can move up and down with respect to the planting device, for leveling the mud surface on which the float is scheduled to run, and the earth scraped by the earth scraping plate is installed on the lateral side. The present invention relates to a float structure for a rice transplanter that is installed in a front-rear tilted position so that the rice transplanter is discharged and guided backwards.

In this type of float structure, the earth scraping plate is directly attached to the front part of the float to eliminate local protrusions existing in the area where the float is scheduled to travel. Unlike the case where the float is attached to a planting device, the relative positional relationship in the vertical direction between the float and the earth scraping board does not change significantly due to the vertical movement of the float with respect to the planting device, and the earth scraping with the earth scraping board is possible. It is possible to ensure that the action is always exerted, but in the past, the earth scraping plate was fixedly supported by a float in a constant front-back tilted position, so depending on the soil quality of the raised area, the scraped soil may be tilted laterally and outwardly. The soil may not be discharged smoothly and may bulge up in front of the scraping board. As a result, not only does the running resistance increase, but this tends to act as a force to move the float upward through the scraping board, impairing the soil leveling performance. In addition to a decrease in the temperature, there was a drawback that the elevation control became unstable, especially when the float was configured to also serve as a sensor float for elevation control of the planting device.

In view of the above-mentioned circumstances, the present invention is designed to always maintain smooth discharge of the cut soil laterally and backwards regardless of the soil quality of the raised area, and to do so without causing trouble as described above. The purpose is to ensure that the earth leveling action can be exerted during the period, and in the above-mentioned method, the slope angle of the earth scraping plate is increased as the slope angle increases according to the ground resistance. It is characterized by being configured to be able to change automatically and reversibly so that the inclination angle becomes larger.

In other words, when leveling the ground using the earth scraping board,
When the ground resistance increases due to the dirt rising up in front of the earth scraping plate, the slope angle of the earth scraping plate is automatically increased to correspond to the increase in ground resistance.
Since it can be changed reversibly, it is easy to maintain the discharge action of the cut soil to the lateral and rearward sides in a smooth state regardless of the soil quality of the raised area, and the increase in running resistance and unreasonable upward movement of the float can be minimized. It has now been possible to reliably achieve the desired leveling effect while suppressing the amount of soil.

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

Wheels 1 are mounted on the front and rear axles, and a control section 2 is mounted on the shaft.
A rice transplanter 5 is connected to the rear of a traveling vehicle body provided with a rice transplanter 5 via a link mechanism 3 and a hydraulic cylinder 4 so as to be able to be driven up and down to form a riding rice transplanter.

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

Thus, a bracket 8 for the bent link 7 fixed to the front part of the center float 6
A pair of left and right stays 10, 10 protruding forward and outward from the front end of the float 6 are provided in series, and a center float 6 is attached to the tips of the stays 10, 10.
earth scraping board 11 for leveling the muddy surface on which the road is scheduled to be run;
11 in a forward-inclined posture such that the resulting scraped soil is discharged laterally outwardly and backwardly, and the vertical axis P,
The soil scraping plates 11, 11 are pivoted so as to be able to swing left and right around P, and the distance from the vertical axes P, P to the outer end of the earth scraping plates 11, 11 is defined as the distance from the vertical axes P, P to the inner end. The structure is larger than the above-mentioned soil scraping board 1.
Between 1 and 11, these two soil scraping boards 11 and 1
1 in the proximal direction, that is, in the direction in which the front and rear inclination angles of these plates become smaller.
1 and 11 is regulated by contact with the stay 10 side, and thus the earth scraping plate 1
The inclination angles of Nos. 1 and 11 are configured to be automatically and reversibly changeable so that the inclination angles become larger as the ground resistance increases.

In addition, 13 and 13 in the figure are the earth scraping plates 11 and 1.
This is a stopper that is connected to the stays 10, 10 in order to regulate the inclination angle in the free state of the stays 10, 10.

In addition, the inclination angle in the free state of the earth cutting plates 11, 11 can be changed by replacing the spring 12,
Alternatively, it may be configured to be adjustable by changing the tensioning length or changing the position of the stopper.

[Brief explanation of the drawing]

The drawings illustrate an embodiment of the float structure of the rice transplanter according to the present invention, in which Fig. 1 is an overall side view of the riding rice transplanter, Fig. 2 is an enlarged side view of the main parts, and Fig. 3 is a plan view of the main parts. It is a diagram. 5... Planting device, 6... Float, 11...
Soil scraping board.

Claims (1)

[Scope of Claim for Utility Model Registration] At the front of the float 6 which can move up and down with respect to the planting device 5, there is provided an earth scraping plate 11 for leveling the mud surface on which the float 6 is intended to run. The float structure of the rice transplanter is attached to a front and back inclined position so that the soil is discharged outwardly and guided, and the inclination angle of the soil scraping plate 11 is set as follows.
A float structure for a rice transplanter characterized by being configured to be automatically and reversibly changeable so that the angle of inclination increases as the ground resistance increases. According to the utility model registered claim, the float 6 is configured to double as a sensor for detecting the mud level of the planting device 5 based on the vertical displacement of the float 6 with respect to the planting device 5. Float structure of rice transplanter.