JPS6320264Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is mainly aimed at floating floats located on the outer side of a group of floats arranged side by side, where the mud pushing caused by sliding on the mud surface has a greater effect on the planted seedlings. A float (side float), more specifically, a land leveling float for a rice transplanter that has fin-like bodies protruding from its side toward the outside to level the muddy surface of the planned planting site.The purpose of the float is: The object of the present invention is to improve the mud fluidity due to the fin-like bodies and to improve the planting posture through a very simple structural improvement.

In this type of conventional ground leveling float, the fin-like body is formed into a thin flat plate shape, and by being provided in a position parallel to the mud surface when viewed from the side, it is possible to prevent the mud surface from being somewhat uneven. It was thought that by using these fin-like bodies to slide across the protrusions, it would be possible to suppress the extrusion of mud to the side and ensure the proper leveling effect. If the structure is such that it has a thin flat plate shape and is installed parallel to the mud surface, it is easy for mud to climb onto the flat surface, and depending on the properties of the mud, it may be difficult for the mud to fall off. As a result, mud gradually adheres and accumulates on the flat surface, forming clumps, and this clumpy mud flows out onto the planned planting site, disrupting planting performance, especially the planting posture, or causing problems with fins due to the mud being thickly deposited. The substantial wall thickness of the shaped body increased, resulting in a drawback that it was no longer able to fulfill its original performance, which was to suppress mud extrusion to the side and exhibit good ground leveling action.

The land leveling float for a rice transplanter according to the present invention has been developed in view of the above-mentioned circumstances, and has the above-mentioned configuration in which the fin-like bodies are provided in an upwardly tilted posture when viewed from the side, and the land leveling fins are It is characterized in that a slope for mud release is formed at the base of the shaped body so that the lower end thereof is located laterally outward.

In other words, according to the ground leveling float of the present invention, since the fin-shaped bodies are tilted forward in a side view, the water flow flowing on the upper surface side of the fin-shaped bodies and the water flow flowing on the lower surface side as the fin-shaped bodies slide on the mud surface. Based on the difference in flow velocity,
A pressure difference occurs between the upper and lower sides of the fin-like body, and the mud that would be retained on the top side of the fin-like body is drawn to the rear side in the flow direction because it is in the water basin on the low-pressure side. Moreover, the mud that climbs up on the fin as it slides on the mud surface is transferred to the side and rear of the fin by using the slope at the base of the fin. Because the flow can be guided smoothly, even if a relatively large lump of mud is rubbed off and climbs up, it can be released to the side of the mud surface after leveling the ground. It is also possible to suppress as much as possible the phenomenon of mud extrusion to the side, which is caused by mud gradually being deposited on the upper surface of the fin-like body.

Therefore, by making very simple structural improvements that can be easily implemented during the float molding process, such as tilting the fin-shaped body forward and forming a slope at the base of the fin-shaped body, it has become possible to improve the fluidity of the mud and thereby improve planting performance, particularly the planting posture.

In particular, by forming the outer end edge of the fin-like body for leveling the ground into an inclined edge along the direction of travel so that the amount of protrusion laterally and outwardly increases as the rearward direction of travel increases, the land leveling fin-like body is formed to have an inclined edge along the direction of travel so that the amount of lateral and outward protrusion is larger as the rearward direction of travel increases. There is an advantage in that the mud flows relatively smoothly along the outer edge of the slope, thereby further reducing the negative impact of the leveled mud surface on the planted seedlings.

Hereinafter, an embodiment of the present invention will be described in detail. As shown in FIGS. 1 and 2, a pair of left and right propulsion wheels 4, 4
The main components of this machine include a center float 5 placed in front of the center between the left and right wheels 4, 4, and a driving unit 6 placed above the center float 5. A seedling platform 7, a plurality of planting mechanisms 8 arranged in parallel in the horizontal direction, and a planting device equipped with a pair of left and right side floats 1, 1 for leveling the ground are connected, and from this planting device, a control device is provided rearwardly and upwardly. In the walk-behind rice transplanter having an extended handle 9, the pair of left and right side floats 1, 1 are configured as follows. Note that since the left and right side floats 1, 1 have the same structure, only one will be described below, but the same applies to the other.

That is, as clearly shown in FIGS. 3 to 5, it is formed into a hollow shape from a synthetic resin material such as polyethylene, and has a mud release groove 10 that penetrates in the front and rear direction at the center of the bottom surface. A fin-shaped body 2 is provided on the side surface of the tip of the float 1 to level the mud surface by sliding on the mud surface at the planned planting site from a position slightly higher than the bottom surface of the float 1 laterally outward. The outer end edge 2A of the earth leveling fin-like body 2 is integrally provided with an inclined edge that gradually protrudes laterally and outwardly toward the rear in the direction of travel, and is located at a position closer to the base than the middle of the protruding width of the earth leveling fin-like body 2. As shown in FIG. 4, a slope 3 for mud release is formed such that the lower end thereof is located laterally. Further, as is clear from FIGS. 4 and 5, the fin-like body 2 is provided in a forward-inclined posture when viewed from the side so that the height from the bottom surface of the float increases toward the front end of the float. .

In addition, by elastically pressing the soil part a of the placed seedlings A from above, the above-mentioned inclined seedling platform 7 is placed at a position closer to the lower part of the slope, so that the seedlings rise and the seedling platform 7 moves laterally. In order to prevent the seedlings from shifting laterally, a loop-shaped seedling holding rod 11 is installed in a side view. By configuring the intersection angle (θ) between the lower rod portion 11A for holding the seedlings and the vertical rod portion 11B supporting the lower rod portion 11A on the lower side in the seedling sending direction to be an obtuse angle of 90 degrees or more, It is possible to avoid defects such as when the stems and leaves of the seedlings being sent out get caught in the corner portions formed by the rods 11A and 11B, causing seedlings to get stuck, and to perform a smooth and good seedling sending operation. It is becoming more and more like this.

[Brief explanation of the drawing]

The drawings show an embodiment of the soil leveling float for a rice transplanter according to the present invention, and FIG. 1 is a side view of the entire rice transplanter, and FIG.
The figure is a plan view of the entire rice transplanter, Figure 3 is an enlarged plan view of the main parts, Figures 4 and 5 are longitudinal cross-sectional rear views taken along lines - and - in Figure 3, Figures 6 and 7 is an enlarged partially cutaway side view of the main part showing the structure of the seedling holding rod. 1... Float, 2... Fin-like body for leveling the ground, 3...
...Slope for mud relief.

Claims (1)

[Scope of Claim for Utility Model Registration] A land leveling float for a rice transplanter, in which a fin-shaped body 2 is provided protruding from the side of the float 1 toward the lateral outside for leveling the muddy surface of the area where planting is planned. The fin-like body 2 is provided in a tilted position with the front rising upward when viewed from the side, and a mud-shedding slope 3 is formed at the base of the fin-like body 2 for discharging mud so that the lower end of the fin-like body 2 is located laterally outward. A land leveling float for rice transplanters that is characterized by: The outer edge 2 of the fin-like body 2 for leveling the ground has a larger amount of protrusion toward the lateral and outer sides as the rear in the direction of travel increases.
The land leveling float for a rice transplanter according to claim 1, wherein A is formed on an inclined edge along the traveling direction. The land leveling float for a rice transplanter according to claim 1 or 2, wherein the land leveling fin-like body 2 protrudes from a slightly higher level than the bottom surface of the float 1.