JPS6239625Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a covering for a compaction drum used to form high ridges in fields.The purpose of this invention is to prevent soil from adhering to the drum, and to easily remove the formed ridges. To provide a suppression drum covering that does not lose its shape.

Traditionally, high ridge cultivation has been widely practiced with the aim of increasing the yield of field crops.This method involves, for example, pulling a desk coulter and a high ridge forming drum to the rear of a transplanter, planting shallowly with the transplanter, and then moving the desk coulter to the rear of the transplanter. This is a cultivation method in which the soil is compacted using a compaction drum for forming high ridges (hereinafter simply referred to as "high ridge compaction drum") from both sides to form predetermined high ridges. The high ridge forming drum used at this time is a pair of bowl-shaped iron drums that are pulled at a predetermined angle on both sides to form the sides of the ridge, but because they are made of iron, soil tends to adhere to them, and it is difficult to handle wet soil. Then, the soil had to be removed frequently during the work, and the high ridges that were completed had corners that were prone to collapse due to wind and rain.

Research has been carried out in the past to try to eliminate the drawbacks of the above-mentioned high ridge forming drums, and this paper was first published in 1983.
-56628 (Utility Model Application No. 57-169015), the outside of the suppression drum is surrounded by a bowl-shaped elastic ring, and the inside of the elastic ring that contacts the shoulder of the suppression drum is provided with many ribs. disclosed a method for preventing soil adhesion by using the restoration effect of soil, but although this method has the effect of preventing soil adhesion, the ridges remain as uneven as before, and collapse due to wind and rain cannot be prevented. Because it required ribs, it was time-consuming and expensive to manufacture. Therefore, further research was carried out, and an elastic ring surrounding the high ridge compression drum was stretched under tension from the shoulder to the hem of the high ridge compression drum, and a space was created between the hem and the elastic ring, which was then replaced by a plate spring. The problem was solved by installing it.

The present invention will be explained with reference to the drawings. Reference numeral 1 indicates a high ridge compression drum, which is usually made of iron, but may also be made of hard synthetic resin. Its shape is
It is similar to the commonly used one and has a bowl shape.
The body part 3 below the shoulder part 2 has a cylindrical shape, but the hem part 4 is widened toward the end, so that the body part 3 and the hem part 4 come into contact with the soil and compress it. A hollow shaft 5 is fixed to the center of the circle, and a shaft 6 is loosely fitted into the hollow part, and the upper ends of the shafts 6 are fixed to mounting plates 7 facing each other and tilting left and right. . Therefore, when the mounting plate 7 is pulled, the suppression drum 1 freely rotates along the ridge A.

The elastic ring body 8 of the present invention has a bowl shape and surrounds the outside of the pressure drum 1 in a tensioned state. It is bent so that it can be fixed to the Therefore, a space 10 is formed at the boundary between the body part 3 and the hem part 4. The elastic ring 8 is usually made of natural rubber, synthetic rubber, or soft synthetic resin such as vinyl chloride, and usually has a wall thickness of 2 to 5 mm.

Next, an example of using the above-mentioned high ridge pressure drum 1 in combination with the paper pot seedling transplanter 11 will be described. The seedlings 12 are planted so that their upper part protrudes about 3 to 4 cm above the ground, and the transplanter 11 is first grounded. Suppress from both sides with rings (not shown). The planted seedlings 12 are covered with soil from both sides of the seedlings 12,
In order to suppress the gathered soil, a mounting arm 13 made of a leaf spring is fixed to the rear end of the transplanter 11 so that the opposite side to which it is mounted is always pressed downward by the arm. A fixing plate 14 is provided at the center of the mounting arm 13.
is fixed, and a soil adjusting plate 15 is fixed to the lower side, and a pair of brackets 16 are fixed to the upper side with bolts 17. Any material can be used as the soil adjustment plate 15, as long as it is usually tunnel-shaped, open at the front and back, and protects the seedlings 12 planted by the movement of the machine from the soil and does not damage them. It is preferable that the part in contact with the arm 13 be the upper side and widen toward the bottom. Further, the brackets 16 form a left and right pair and stand upwardly, and a horizontal frame 18 is fixed to the upper end thereof in a direction perpendicular to the movement of the machine body. This horizontal frame 18 is made of a rod with a U-shaped cross section, and adjusting rods 19, 19 are loosely fitted in the vertical direction at both ends thereof, and are fixed at a desired position with push bolts 20 provided on the horizontal frame 18. . Further, at the lower end of the adjustment rod 19, a desk coulter 21 is provided in the vertical direction and rotatably supported,
An adjustment arm 22 is fixed to the upper end. For this reason, when the adjustment arm 22 is rotated inward, the desk coulter 21 also rotates, gathering soil and raising the ridge.
Pushing outward will lower it. Since the desk coulter 21 rotates freely, it rotates as the machine advances, creating ridges.
protects the seedlings 12, so the ridges can be at a desired height without being buried.

Next, the mounting plate 7 of the high ridge pressure drum 1 is fixed to the rear end of the mounting plate arm 13, and a pair of high ridge pressure drums 1 , 1 are tilted outward on both sides thereof. At this time, if the groove made by the desk coulter 21 and the hem 4 of the high ridge compression drum 1 pass through the same position, the shallowly planted seedlings 12
The desk coulter 21 collects the soil appropriately, and the mounting arm 13 has the effect of using a leaf spring.
Since the suppression drum 1 is pushed strongly downward, the suppression drum
1 compacts the soil via the elastic wheel 8. At this time, the elastic ring body 8 is under tension and has a space 10, so even if hard substances such as pebbles or pieces of wood are present, they are suppressed with approximately the same pressure, and the entire surface forms a curved suppression surface. As a result, the pressing surface not only has a beautiful finish, but also has significantly improved resistance to wind and rain because it does not have corners, is obstructed by pebbles, wood chips, etc., and does not become hard or soft, unlike conventional pressing wheels.

The present invention is constructed as described above, and the suppressing drum 1 of the present invention is pressed by the leaf spring of the mounting arm 13, and the outer elastic wheel 8 is connected to the body 3 of the suppressing drum 1 and the hem that widens from it. Space part 1 between part 4
0, so when it makes contact with the ground, the space 10 not only promotes the deformation of the elastic wheel 8, but even if there is a clod of soil or the like on the ridge that cannot be handled by that deformation, the attachment arm 13 of the leaf spring will bend vertically and horizontally. Since it maintains a substantially uniform compacting force, it prevents soil from adhering to the soil, and the compacting force on either the left or right side is strong so that the planted seedlings 12 do not lose their planting posture, creating beautiful ridges that do not easily cause landslides. can do.

The high ridge compaction drum coating of the present invention may be used independently or in combination with a transplanter as described above.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a high ridge compression drum equipped with the high ridge compression drum covering of the present invention, and FIG. 2 is a plan view showing an example of use of the high ridge compression drum coating of the present invention. 1 ...High ridge compression drum, 2...Shoulder, 4...Hem, 7...Mounting plate, 8...Elastic wheel, 10...Space, 11...Transplanter, 21...Desk coulter.

Claims (1)

[Scope of utility model registration request] A pair of pressure drums having a cylindrical body portion 3 and a bottom portion that widens at the end are installed at the ends of the mounting arm 13 made of a leaf spring, and are inclined from side to side, and a bowl-shaped elastic wheel 8 is provided on the outside of the pressure drums. A space part 10 is detachably surrounded.
A high ridge suppression device formed by forming