JPH0454726Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] The present invention is an improvement of a ground leveling plate for plowing, and more specifically, it is capable of leveling ridges by attaching it to a tractor or other field vehicle as an attachment and driving it by pulling it. The present invention relates to a practical leveling plate that can be efficiently raked without being destroyed.

[Conventional technology]

Brushing is performed before rice planting and as part of the soil leveling process under irrigation water. Conventionally, long logs were used as the plowing tool, and the plowing was carried out by dragging them one by one with a tractor. For this reason, there is a disadvantage that the end of the log collides with the ridge and destroys that part, and the puddling itself cannot level the ground to a satisfactory condition.

[Technical issues to be solved]

The present invention was devised in view of the above-mentioned drawbacks of the conventional land leveling technique of dragging logs, and is capable of being attached to a tractor or other field vehicle as an attachment, and is capable of destroying ridges. The technical problem is to provide a practical leveling plate that can perform plowing work in an ideal state without any problems.

[Means adopted to solve the problem]

The means adopted by the present inventor to solve the above technical problem will be explained with reference to the attached drawings.
It is as follows.

That is, the present invention includes a ground leveling plate main body 1 that can float in irrigation water of a paddy field; the main body 1 is pivoted at both ends so as to be able to turn only forward and inward, and is biased in the expansion direction by a return spring 24. a pair of left and right wing plates 2, 2 which can be extended obliquely forward in a normal state; elastic buffer members 3 attached to the tips of these wing plates 2, 2, respectively;
The gist lies in the leveling plate for puddling, which was constructed by skillfully linking and integrating the technical means described in 3.

〔Example〕

Specifically, the ground leveling plate main body 1 has an upright plate 12 fixed to the front edge of a long wooden flat plate 11 to improve the leveling effect. In addition, the right side 11a and the left side 11b are connected via a hinge 13 so that it can be folded into two at the center, and fixed with a fastener 14, making it convenient to transport on the road.

The wing plates 2, 2 are constructed by fixing an upright plate 22 to the front edge of a flat plate 21 in the shape of an oblique trapezoid.
The blades 2, 2 are hinged so as to be pivotable around the pin as a fulcrum, and are retracted only inward (arrow A), and are biased in the expansion direction of the blades 2, 2 via the return spring 24, so that the blades 2, 2 are normally aligned. It projects diagonally forward on both sides of the main plate main body 1.

Elastic buffer members 3, 3 are attached to the tips of the wing plates 2, 2, respectively, and in this embodiment, molded synthetic rubber is used as these elastic buffer members 3. Thus, the shape of the elastic shock absorbing member 3 in this embodiment is such that it extends forward along the side edge of the distal end, and the distal end thereof is curved inward to form a warped shape.

The plowing ground plate having the above structure has a chain C attached to the rear of the rotary R attached to the rear of the tractor T.
It is attached through C and is towed through the fields with irrigation water (see Figure 3).

However, the leveling plate produced as described above is
Because it is made of wood, it floats on the irrigation water when passing through areas with low soil levels, and when it passes through areas with high soil levels, it scrapes away the high soil to level the soil surface ( (See Figure 4).

In addition, since both wing plates 2, 2 of this ground leveling plate protrude on both sides so as to surround the rotary R, they act to scrape inward the mud discharged from the side of the rotary R, and the tractor It moves forward so as to embed itself in the wheel tracks (ruts) formed by the tires, and level the ground in ideal conditions.

Furthermore, at the tips of the vanes 2, 2 on both sides of the ground leveling plate,
Since the elastic buffer members 3, 3 are attached, the elastic buffer member 3 is attached before either the left or right wing plate 2 hits the ridge.
(In this embodiment, the ridges) collide with each other in a cushioning manner and repel the vane 2 inwardly, so that the ridges are not destroyed (see FIG. 5). Note that if the elastic buffer member 3 is separated from the ridge, it will return to its original position by the action of the return spring 24.

[Effect of idea]

As is clear from the above explanation, according to the present invention, the ground leveling effect is improved by the ground leveling plate main body and the left and right wing plates extending from both ends thereof in an inverted V-shape. Since the blades can be pivoted forward and retracted, when the elastic buffer member hits a ridge, it immediately bounces the vane back to the front and inside, allowing ideal coverage to reach every corner of the field without damaging the ridge. It is possible to level the ground with high efficiency.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view of a ground leveling plate for puddling which is an embodiment of the present invention, Fig. 2 is an enlarged plan view of the main part of the leveling plate of this embodiment, and Fig. 3 is a ground leveling plate of this embodiment. FIG. 4 is a cross-sectional view of the ground leveling plate showing the working condition, and FIG. 5 is a plan view showing the action of the vanes on the leveling plate. DESCRIPTION OF SYMBOLS 1... Leveling plate main body, 2... Wing plate, 3... Elastic buffer member, 24... Return spring, C... Chain.

Claims (1)

[Scope of claim for utility model registration] A leveling plate main body 1 that can float in irrigation water of a paddy field;
A pair of left and right wing plates 2, 2 are pivotally supported at both ends of the main body 1 so as to be able to pivot only forward and inward, and are tensilely biased in the expansion direction by a return spring 24 so that they can be extended forward in a normal state. are attached to the tips of these blades 2, 2, and extend forward along the tip side edges of these blades, and the extended tip portions are curved inward to form a sled shape. 1. A ground leveling plate for plowing, characterized in that it is composed of elastic buffer members 3, 3 that can achieve the following effects. A ground leveling board for plowing according to claim 1, wherein the ground leveling board main body 1 is foldable in two at its central portion.