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JP-2022002474-A - Rice transplanter

JP2022002474AJP 2022002474 AJP2022002474 AJP 2022002474AJP-2022002474-A

Abstract

To provide a rice transplanter including a seedling transplanting device at the rear part of a traveling car body, the rice transplanter configured to, even when foreign materials are scattered in a field, be able to continue transplanting work without any interruption of the transplanting work.SOLUTION: There is provided a rice transplanter including a seedling transplanting unit 15 at a rear part of a traveling car body, the rice transplanter having at least filtration nets 1A and 1B with the planting width, vertically movably provided at the forefront of the traveling car body.SELECTED DRAWING: Figure 4

Inventors

  • TAI YOSHIHIRO
  • KURITA KO

Assignees

  • ISEKI AGRICULT MACH

Dates

Publication Date
20220111
Application Date
20200623
Priority Date
20200623

Claims (3)

  1. In a rice transplanter having a seedling planting portion (15) at the rear of the traveling vehicle body (10), a filtration net (1A, 1B) having at least a planting width is provided at the front portion of the traveling vehicle body (10) so as to be able to move up and down. A rice transplanter featuring.
  2. A depth sensor (4) is provided toward the front and lower sides of the filtration net (1A, 1B), and the filtration net (1A, 1B) is controlled to move up and down according to the water depth measured by the depth sensor (4). The rice transplanter according to claim 1.
  3. The rice transplanter according to claim 1, wherein a plurality of filtration nets (1A, 1B) are arranged side by side so that the filtration gaps are sparse to dense.

Description

The present invention relates to a rice transplanter that performs seedling transplanting work while traveling in a field. The rice transplanter is equipped with a seedling transplanting device at the rear of the traveling vehicle that runs on the four wheels of the front and rear wheels, and runs while leveling the surface of the field where water is stored with a float, and uses the seedling transplanting device to turn the seedlings into the field. Transplant (see, for example, Patent Document 1). It is a right side view of the rice transplanter of embodiment in this invention.It is a top view of the rice transplanter of embodiment in this invention.It is a perspective view of the rice transplanter of the 1st Example of Embodiment in this invention.It is a perspective view of the rice transplanter of the 2nd Example of the Embodiment of this invention. 1 and 2 show a left side view and a plan view of a passenger-type rice transplanter equipped with the seedling planting apparatus according to the embodiment of the present invention. This passenger-type rice transplanter is equipped with an engine 11 and plants 6 rows of seedlings via an elevating link device 14 behind a traveling vehicle body 10 equipped with a pair of left and right front wheels 12 and rear wheels 13 that are driven and rotated. The portions 15 are connected. Further, the traveling vehicle body 10 is provided with a driver's seat 16, a steering handle 17 for steering the front wheels 12, and a spare seedling mounting table 18 on which spare seedlings are placed. In this specification, the front-rear and left-right direction standards define the front-rear and left-right reference based on the traveling direction of the vehicle body when viewed from the driver's seat 16. The seedling planting section 15 is provided with an inclined seedling mounting table 22 having an upper front portion on the upper side of the planting transmission case 21 to be transmitted from the engine 11, and is behind the planting transmission section of the planting transmission case 21. A set of seedling planting devices 23 is provided at each of the two rows at the end. When the traveling vehicle body 10 is advanced with the center float 24 and the side float 26 grounded, the seedling mounting table 22 reciprocates left and right to place the mat seedlings on the table on the lower end side of the seedling loading table 22. The seedlings are sequentially supplied to the seedling picking port 25 of 20 one by one, and the seedling planting device 23 separates each plant and plants it in the field. As shown in FIG. 3, in front of the traveling vehicle body 10, a lower filtration net 1A and an upper filtration net 1B slightly wider than the widths of the left and right front wheels 12 and 12 are provided so as to be inclined toward the front lower side. The upper filtration net 1B is fixed, and the lower filtration net 1A is attached so as to be able to move up and down with the left movable link 2L and the right movable link 2R. In the embodiment, the lower filter net 1A and the upper filter net 1B are provided, but the lower filter net 1A and the upper filter net 1B may be moved up and down as a unit. For simplicity, the lower filter net 1A is adjusted to a height where the lower end of the lower filter net 1A scoops the field surface by changing the attachment position to the upper filter net 1B up and down, but the left movable link 2L. The height of the right movable link 2R can be automatically adjusted by expanding and contracting the ball screw with a motor or by expanding and contracting with a hydraulic cylinder, rack and pinion mechanism to raise and lower the lower filtration net 1A. Further, the height can be accurately controlled by measuring the position of the lower filtration net 1A with a stroke sensor. In addition, two filtration nets 1A and 1B are provided in the front and rear, and the filtration gaps on the front side are largely sparse and the rear side is made small and dense so that large impurities are collected on the front side and small impurities are collected on the rear side. Then, it becomes easier to separate the impurities when transplanting them to the ridges. FIG. 4 shows an example in which a sensor arm 3 is extended in front of the upper and lower filtration nets 1A and 1B and a depth sensor 4 composed of an ultrasonic sensor is provided at the tip thereof. The water depth is measured by the depth sensor 4 and left. The movable link 2L and the right movable link 2R are automatically expanded and contracted so that the lower end of the lower filtration net 1A is slightly lifted from the field scene. Since the seedling transplanting work in the rice transplanter is carried out in a straight reciprocating run, the transplanting run toward the ridges, and the impurities such as cut straw collected by the upper and lower filtration nets 1A and 1B are removed with the ridges and inverted. You can continue the porting work.