JPH0432017Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a leveling structure in a float of a rice transplanter.

That is, by configuring the rice transplanter so that the fertilization device can be attached to the float as needed, a special float for attaching the fertilization device is not required, and the fertilization device can be easily attached to the float. For this purpose, the technique of cutting broken lines at the installation position of the float's fertilization device was developed, for example, by Jitsukasho.
This method is already known as disclosed in No. 58-35814.

However, in the above-mentioned conventional technology, a dedicated attachment part for attaching a fertilizer application device is formed in advance on the side of the float, and the attachment part cannot be used in a normal rice transplanter, that is, a rice transplanter that is not equipped with a fertilizer application device. Therefore, although the above-mentioned conventional technology has the advantage of eliminating the need for a dedicated float for mounting the fertilization device, it does not have any active function. The float structure is not necessarily rational in that a fertilizing device mounting portion is formed on the top of the float, and the structure has the disadvantage of being complicated and increasing costs.

Furthermore, in the above-mentioned conventional technology, a broken line cutting process is performed at the fertilization device attachment position of the float, but this broken line cutting process is additionally performed after the float is formed. This method has the drawbacks of increasing the number of steps and manufacturing costs.

Furthermore, in the conventional technology, the float is cut along a broken line, that is, it is formed with a series of holes penetrating from the top surface to the bottom surface of the float. When the wall thickness of the float decreases, the float wall thickness between the through holes also decreases by the same amount. In this case, the float has the disadvantage that the rigidity of the float decreases at the broken line cut portion, and the float may crack or become deformed from the same portion.

The present invention solves the various drawbacks mentioned above, and not only simplifies the installation process by making it possible to easily attach the fertilization device to the float of a rice transplanter, but also simplifies the float structure and streamlines the manufacturing process. The present invention aims at reducing the amount of water and improving durability, etc., and is provided so that it can be suitably implemented as a float for attaching a fertilizer application device.

Next, the embodiment shown in the drawings will be described.

Fig. 1 shows a partially cutaway plan view of the float of the rice transplanter, and the float A has a narrow width at the rear part 3, so that planting can be carried out using planting claws on both outer sides of the front part of the rear part 3. Thin leveling parts a, a for leveling the rice field at the planting position are formed in the shape of a protrusion on both sides of the float A, which is the front side of the planting positions P, P. It is constructed of material.

When this rice transplanter is equipped with a fertilizing device, the groove cutting/fertilizing device 4, 4 of the fertilizing device is removed by notching and removing a part of the portions 1, 1 of both the leveled portions a, a. 1
It is to be installed on.

In order to attach the groove-creating body and fertilizer applicator 4, 4, on the lower surface of both the flat parts a, a, a notch is placed around the parts 1, 1 to be removed.
Notch grooves 2, 2 with appropriate depth notched toward the upper surface side
is formed by float molding so that its cross section has a triangular shape as shown in FIG.

In the figure, reference numerals 5 and 5 are hoses that deliver fertilizer from the upper tank side to the furrowing/fertilizing device 4.

Therefore, if a fertilizer application device is not attached to the rice transplanter, parts 1 and 1 in the leveling areas a and a are not removed, so the float A remains as it is as shown in Figures 1 to 3, and the leveling The field surface is leveled by parts a and a, and planting is performed at planting positions P and P using planting claws.

When attaching a fertilizing device to a rice transplanter, use a tool to cut out portions 1, 1 in the leveled portions a, a from the notch grooves 2, 2, and remove them as shown in FIG.
As shown in FIGS. 6 to 8, groove-creating and fertilizing devices 4, 4 can be installed in the removed area in the same manner as before.

In this way, the present invention is a rice transplanter in which thin leveling parts a, a are formed on the sides of the float A, which is the front side of the planting position P, for leveling the rice field at the planting position. In the float, on the lower surface of the flat part,
Since a notch groove cut out to an appropriate depth toward the upper surface of the flat part was formed during float molding, when a fertilization device is attached to the float, the notch groove formed in the thin flat part A portion of the float can be cut out very easily and accurately, and a mounting part for the fertilization device can be easily created.

In addition, since the fertilization device is attached to the leveling section for leveling the planted field, which is normally formed as a float of a rice transplanter, a dedicated mounting section is required for attaching the fertilization device, as in the prior art described above. There is no need to provide a float, and it can be used both as a float for attaching and not attaching a fertilizing device, and has an extremely rational and simple float structure, resulting in a large cost reduction.

Furthermore, since the notch grooves are formed during float molding, the number of steps for manufacturing the float can be reduced compared to the above-mentioned conventional technology, and the manufacturing cost can also be reduced.

In addition, the notch groove is formed on the lower surface of the leveling part by cutting it to an appropriate depth toward the upper surface of the leveling part, so it is easy to level the planted rice field after long-term use. Even if the lower surface of the flat surface wears out and its thickness decreases, the thickness of the notched groove portion will hardly change, and the float may crack from the notched groove portion, or the float may become deformed, causing damage to the planted field. This method does not impede the leveling action and is exceptional in that it can significantly improve the durability of the float compared to the conventional technology described above or the type in which notched grooves are formed on the top surface of the leveling section. have an effect.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a partially cutaway plan view of the float, FIG. 2 is a side view thereof, and FIG. 3 is a sectional view taken along the line - in FIG.
Figure 4 shows a part of Figure 1, Figure 5 shows a part of Figure 4, Figure 6 is a plan view of the groove-cutting and fertilizing device installed, and Figure 7 is its side view. , Figure 8 is the 7th
A sectional view taken along the - line in the figure is shown. P... Planting position, A... Float, a... Leveled part, 1... Part, 2... Notch groove.

Claims (1)

[Scope of utility model registration request] On the side of the float A, which is the front side of the planting position P, there is a thin leveling part a for leveling the rice field at the planting position.
In the float of the rice transplanter configured by forming a part a, the lower surface of the flat part a,
Notch groove 2 cut out to an appropriate depth toward the upper surface of a.
A flat portion structure in a float for a rice transplanter, characterized in that the structure is formed by molding 2 at the time of molding the float A.