JPH0427285Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is a land preparation machine for rice transplanters that has groove protrusions protruding downward from the bottom to form grooves on the mud surface for supplying powdered fertilizers, chemicals, etc. Regarding floats.

Conventionally, in the above-mentioned land leveling float, the corner formed by the bottom surface of the float and the protrusion is caused by an increase in the compaction density of the mud near the protrusion due to the pushing action of the mud by the front end of the groove protrusion. There was a problem in which mud adhered to the area, and as a result, the opening width of the forming groove became unequal, making it impossible to backfill the groove sufficiently, resulting in the supplied fertilizer and chemicals flowing out into the water on the mud surface. .

In view of the above-mentioned circumstances, an object of the present invention is to simplify the float shape as much as possible while preventing mud from adhering to the groove protrusion.

The characteristic configuration of the present invention is that, in the above-mentioned land leveling float for a rice transplanter, a soil removal groove is provided in front and behind the float to allow soil to pass from the front end of the groove protrusion to the rear of the float as the float moves. The earth removal groove is formed in a continuous state, and this soil removal groove is formed between a front-rear straight line portion formed by the horizontal inner surface of the groove-forming protrusion and a vertical wall formed on the bottom side of the float, and a rear part of this front-rear straight line portion. and a guide groove part that guides the mud flow in the groove toward the center of the float from the planting position, and the lateral outer surface of the groove forming projection part and the lateral end surface of the float are configured to be flush or almost flush. At a certain point.

In other words, the muddy water that is pushed laterally as the float moves flows from the front end to the rear along the lateral end surface of the float, so that the lateral outer surface of the working groove protrusion and the lateral end surface of the float are By making the floats flush with each other or almost flush with each other, the muddy soil pushed to the outer side of the float by the groove-forming protrusions is pressed away by the flowing muddy water along the lateral end surfaces of the float. The muddy soil pushed to the inside of the float by the groove-forming protrusion is pushed toward the rear of the float by the muddy water passing through the soil removal groove. Therefore, it is possible to effectively suppress an increase in the degree of compaction of mud near the protrusions for working grooves, and it has become possible to effectively prevent mud from adhering to the protrusions due to the increase in the degree of consolidation. Furthermore, since the soil drainage groove is formed using the lateral inner surface of the groove-forming protrusion on the bottom of the float, it is possible to minimize the complexity of the float shape in order to prevent mud from adhering, and to prevent fertilizers and chemicals from flowing out. It has become possible to prevent this and to obtain it at a low cost.
Furthermore, the muddy water passing through the soil drainage ditch is guided by a guide groove formed at the rear of the ditch to the center of the float from the planting position, that is, to the side away from the ditch protrusion for fertilizing. It will not flow towards the location or planting area and damage the planting surface.

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, a pair of left and right front wheels 1, 1
At the rear of the self-propelled aircraft, which has rear wheels 2, 2, an engine 3, a driving section 4, etc., 4 are arranged in parallel in the lateral direction of the aircraft.
A seedling planting device including a seedling planting arm 5, a seedling stand 6, two soil leveling floats 7, 7 for the seedling planting location, etc. is connected to the seedling planting device by a link mechanism 8 that can be driven and moved freely to be raised and lowered. At the same time, the riding-type rice transplanter is configured so that rotational force is transmitted from the self-propelled body to the seedling planting device.

As shown in FIG. 1, a pair of main tanks 10 for storing powdered fertilizer are attached to the self-propelled aircraft via struts 9.
and two auxiliary tanks 11 attached to the seedling planting device.
and a pair that is adapted to absorb the approach of the main tank 10 and the auxiliary tank 11 due to the rise of the rice planting device by elastic deflection, and to supply the fertilizer inside the main tank 10 to the auxiliary tank 11 by lowering its own weight. The left and right sides are connected separately by flexible hoses 12. Then, as shown in FIGS. 2 to 4, pieces are attached to the left and right sides of each of the soil leveling floats 7, 7, and a pair of groove-forming protrusions 13, 13 are attached.
is arranged so that it protrudes downward from the bottom of the float 7 so as to form a groove on the mud surface near the seedling planting area as the aircraft travels, and the groove-forming protrusion 13 is arranged to prevent mud from adhering to the outer side of the float. so that it is prevented,
The float lateral outer side surface 13a is the float lateral end surface 7.
Formed so that it is flush with or almost flush with a,
And the protrusions 13, 1 for both working grooves of the left float 7
3, there are protrusions 13, 13 for both working grooves from the left side auxiliary tank 11 and for the right side float 7.
Each of the groove protrusions 13 is connected to the fertilizer feeding part 11a of the auxiliary tank 11 via a hose 14 so that fertilizer is supplied from the auxiliary tank 7 on the right side to the inside of the auxiliary tank 7, and then seedlings can be planted. Along with the work, 4
A groove is formed on the side of each row of planted seedlings in the row, so that fertilizer can be supplied into the groove.

Then, a float 7 is placed on the bottom of the float 7.
A soil removal groove 15 is formed extending from the front and rear of the float to allow soil to pass through from the front end of the groove protrusion 13 to the rear of the float as the float moves. This soil removal groove 15 is formed by the groove forming projection 1
A straight line in the front and back direction formed by the horizontal inner surface of 3 and the vertical wall formed on the bottom side of the float is connected to the rear part of this straight line in the front and back direction, and the mud flow in the groove is directed toward the center of the float from the planting position P. The lateral outer surface 13a of the groove forming protrusion 13 and the float lateral end surface 7a are configured to be flush with each other or substantially flush with each other. In other words, Figures 3 and 4
As shown in the figure, in each of the floats 7, 7, the part of the bottom surface where the soil is leveled at the seedling planting location is
It is formed so as to be located at a higher level than other parts from the front end to the rear end, and the vertical wall between the high level bottom part and the low level bottom part and the lateral inner surface of the groove forming protrusion 13. 13b constitutes the linear portion in the longitudinal direction, and the guide groove portion 1 is formed by the protruding portion formed on the bottom surface of the float at approximately the same level at the rear of the working groove protrusion 13 and the rear portion of the vertical wall.
It consists of 6. In this way, the mud pushed out to the inside of the float by the groove-forming protrusion 13 is pushed out to the rear of the float by the muddy water passing through the soil removal groove 15.

In carrying out the present invention, the objects to be fed into the grooves formed in the mud surface by the groove-making section 13 may be various types of chemical agents such as seeds in addition to granular fertilizers. It is.

[Brief explanation of drawings]

The drawings show an embodiment of the land leveling float for a rice transplanter according to the present invention, in which Fig. 1 is a side view of a riding type rice transplanter, Fig. 2 is a plan view of the float, Fig. 3 is a bottom view of the float, and Fig. 4. is a cross-sectional view taken along the - arrow in FIG. 2; 7...Float, 7a...Float side end surface, 1
3... Protrusion for forming groove, 13a... Lateral outer surface of protrusion for forming groove, 13b... Lateral inner surface of protrusion for forming groove, 15
... Earth removal ditch, 16... Guide groove section.

Claims (1)

[Scope of utility model registration request] A soil leveling float for a rice transplanter having a groove-forming protrusion 13 protruding downward from the bottom, which allows soil to pass through from the front end of the groove-forming protrusion 13 to the rear of the float as the float moves. A groove 15 is formed in a continuous manner across the front and rear of the float, and this soil removal groove 15 is formed on the lateral inner surface 13 of the groove forming projection 13.
b and a vertical wall formed on the bottom side of the float, and a guide groove section that is connected to the rear of this longitudinal straight section and guides the mud flow in the groove toward the center of the float from the planting position. 16, and the lateral outer surface 13a of the groove-forming protrusion 13 and the float lateral end surface 7a are flush with or substantially flush with each other.