JP4854045B2 - Drainage ditch forming device for paddy field machine - Google Patents

Description

  The present invention is provided in a paddy field work machine such as a seeding machine or a fertilizer machine that embeds an embedded material related to a crop with respect to the soil of the paddy field. The present invention relates to a drain groove forming apparatus.

Conventionally, what was published in patent document 1 (Unexamined-Japanese-Patent No. 2001-148911) is known as a drain-ditch formation apparatus of this kind of paddy field machine, for example. As shown in FIG. 12, the drain groove forming device Sa is provided, for example, in a paddy field machine Wa for seeding rice seeds as an embedded object. This paddy field work machine Wa is provided with four floats 120 having a flat lower surface that is pressed against the soil surface of the paddy field to level the soil surface. An embedded article grooving body (not shown) that is moved by the traveling of the machine Wa to form an embedded groove for burying rice seeds on the soil surface is provided.
The drainage groove forming device Sa is composed of a plate formed in an M-shape when viewed from the back, and includes a grooved body 100 bent downward in the center of the left and right, and a restricting portion 110 extending downward in the left and right ends. It is attached to the rear part of the paddy field work machine Wa via a rod-shaped arm 121. One end 121a of the arm 121 is detachably attached to a machine frame 122 extending in the left-right direction with respect to the traveling direction of the paddy field work machine Wa, and a drain groove forming device Sa is provided on the other end 121b side. . Further, the drain groove forming device Sa is attached to the machine frame 122 of the paddy field work machine Wa via the arm 121 so as to be positioned between the plurality of floats 120 of the paddy field work machine Wa. In this state, the drainage groove forming device Sa has its front end 101 positioned higher than the rear end 102 with respect to the soil surface.

And when seeding rice seeds with this paddy field work machine Wa, the paddy field work machine Wa is driven to run on the soil surface. When the paddy field work machine Wa is run, the float 120 moves. As a result, the buried object groove body (not shown) provided on the lower surface of the float 120 pushes out the soil. A buried trench is formed in the path of movement of the body (not shown), and rice seeds are placed in the buried trench for sowing.
Further, in the traveling of this paddy field work machine Wa, the drainage groove forming device Sa is moved, and by this movement, the groove body 100 of the drainage groove forming device Sa can push the soil to the left and right in its traveling direction. Drainage grooves Da are formed in the movement path of the groove body 100. At this time, the restriction part 110 receives the soil pushed away by the groove forming body 100 in the left and right directions, and the pushed away soil accumulates between the groove making body 100 and the restriction part 110. The generated soil is prevented from moving to the left and right outward in the traveling direction of the drain groove forming device Sa.

JP 2001-148911 A

  However, in the drainage groove forming device Sa of this conventional paddy field work machine, there is a problem that the drainage groove Da to be formed is not a required one and the drainage efficiency from the drainage groove Da is inferior. This is because, as shown in FIG. 13, the drainage groove forming device Sa is attached to the other end 121b side of the arm 121. Therefore, when the soil is pushed away, the drainage groove forming device Sa is easily lifted up. However, the drainage groove Da is inevitably formed with a shallow depth and a narrow width with respect to the original ground GL, and the presser of the soil becomes insufficient, and the drainage groove Da tends to collapse. If the drainage from the drainage groove 100 is not sufficiently performed, the buried object groove will not be sufficiently drained, so that the moisture adjustment of the buried object becomes insufficient, which hinders the growth of the buried object.

  The present invention has been made in view of such problems, and enables the drainage groove to be formed deep and wide with respect to the original ground, and also ensures that the drainage of the soil in the drainage groove is hard to collapse. And it aims at providing the drain ditch formation apparatus of the paddy field machine which aimed at the improvement of drainage efficiency so that drainage from a drain ditch could fully be performed.

  In order to achieve such an object, the drain ditch forming apparatus of the paddy field working machine according to the present invention is provided in a paddy field working machine for burying an embedded object related to a crop with respect to the soil of the paddy field. In a drainage groove forming apparatus for a paddy field work machine that forms a drainage groove on the surface, the base body provided in the paddy field work machine, and the soil moved by the traveling of the paddy field work machine provided in the base body to displace the soil A first groove body that forms a ground groove on the surface, and further pushes away the soil of the ground groove formed by the first groove body provided on the rear side in the running direction from the first groove body of the base body. A second groove body for shaping the drainage groove is provided.

  As a result, when the paddy working machine travels on the soil surface of the paddy field, the base body is moved, and by this movement, the first groove body first pushes the soil, thereby forming a ground groove on the soil surface. The Next, the second groove body provided on the rear side in the running direction of the first groove body further pushes the soil of the ground groove, thereby shaping the ground groove into a drainage groove. Therefore, the drainage groove is formed by forming the ground groove and then shaping it, that is, the drainage groove is formed by the soil being pushed twice by the first grooved body and the second grooved body. Therefore, the drainage groove can be formed deep and wide with respect to the original ground, and the soil presser of the drainage groove is surely formed and is neatly shaped and is not easily broken. For this reason, a drainage ditch becomes a required thing, and drainage from this drainage ditch can fully be performed, and drainage efficiency is improved. As a result, it is possible to reliably adjust the moisture content of the embedded object and promote the growth of the embedded object.

  In addition, the first groove body and the second groove body will push the soil twice to form a drainage ditch, so compared with the case where a large grooved body pushes the soil at once to form a drainage ditch. And the resistance with respect to the soil in each of the 1st grooving body and the 2nd grooving body can be made small, Therefore, the grooving efficiency can be improved.

  And if needed, it is set as the structure which formed the said 1st grooved body and the 2nd grooved body in the hull shape which has the front end which inclined. As a result, the front ends of the first groove body and the second groove body come into contact with the soil, and the soil is pushed away. The resistance to soil in each of the groove bodies can be reduced, and therefore the groove production efficiency can be improved.

  Moreover, it is set as the structure which formed the front end of at least any one of the said 1st grooved body and the 2nd grooved body in the planar shape which faces a advancing direction as needed. As a result, the displaced soil is moved to the front side in the traveling direction of the front ends of the first groove body and the second groove body and is pressed against the lower side of the soil, so that the soil of the drainage groove is further increased. The presser foot is secured and it is neatly shaped and hard to collapse.

  Further, if necessary, the base body is formed with a pressing surface that extends to the front side and the left and right sides of the upper end of the first groove body and presses the soil pushed away by the first groove body. As a result, the soil that has been pushed away by the first groove body and moved to the front side and the left and right sides of the front end of the first groove body is pressed down by the holding surface. It is possible to suppress the situation of entering and returning to the graben, so that the depth can be further deepened and widened, and the soil presser of the ground trench can be surely formed and neatly shaped.

  Furthermore, if necessary, the second groove body is provided at the rear end portion of the base body, and wings that hold the soil pushed away by the second groove body on the left and right sides of the upper end of the second groove body. It is set as the structure which provided. As a result, the wings are able to press the soil that has been pushed away by the second groove body and moved to the left and right in the direction of travel of the front end of the second groove body, so that the pushed soil enters the drainage groove. The situation of returning can be suppressed, and the presser foot of the soil in the drainage can be further ensured, and it is neatly shaped and hard to collapse.

  Further, if necessary, the side surface is inclined so that the projection surface obtained by projecting the second grooved body in the traveling direction has a triangular shape with a sharp lower end, and the outer surface of the wing is the side surface. The structure is formed along the extended surface. As a result, the drainage groove is shaped into a V shape with a sharpened lower end, so that water can easily flow and drainage efficiency can be improved. The growth of things can be promoted. Further, by forming the outer surface of the wing along the extended surface of the side surface, the drainage groove can be shaped more beautifully.

  If necessary, the paddy field machine includes a float that is pressed against the soil surface and has a flat bottom surface that smooths the soil surface and is symmetrical with respect to the center line along the traveling direction, and the base body. And the first grooved body and the second grooved body are arranged on the center line of the float. This allows the base body as a float to be pressed against the soil surface, so that the drainage ditch can be more reliably formed into the required one. Therefore, the drainage ditch is deeper and wider than the original ground. In addition, it can be easily formed, and the presser foot of the soil in the drainage can be surely shaped, and it is neatly shaped and hard to collapse. In addition, since the base body is made of a float, the drainage groove forming device is installed in the rear part of the paddy field work machine via the arm as in the conventional case. Therefore, even when the paddy field work machine turns at the heel, the small turn is effective, and the working efficiency can be improved.

  Further, if necessary, the paddy field machine forms a pair of buried objects that are immersed in the soil and moved by traveling so as to bury buried objects on the soil surface and separated at a predetermined interval. A groove body is provided, and the pair of buried product groove bodies are provided at a symmetrical position with the center line sandwiched between the float base body. As a result, the buried object groove is always formed on the left and right of the drainage groove, so that the buried groove is drained more reliably by the drainage groove, so that the moisture adjustment of the buried object is ensured. Can be carried out, and the growth of buried objects can be promoted.

  Furthermore, the base body as the float is configured to be supported on the other end of a rod-shaped attachment member that is attached to the paddy field work machine, if necessary. As a result, the mounting member bends up and down, so that even if the soil surface is not flat, it is possible to follow this, and the lower surface of the base body can be reliably pressed against the soil surface. Can do.

  According to the drainage groove forming apparatus of the paddy field machine of the present invention, the drainage groove is formed by forming a base groove and then shaping it, that is, the drainage groove includes the first groove body and the second groove body. Since the soil is pushed away twice by the grooving body, the drainage ditch can be formed deep and wide with respect to the original ground, and the presser foot of the drainage ditch is ensured and neatly shaped It becomes difficult to collapse. For this reason, a drainage ditch becomes a required thing, and drainage from this drainage ditch can fully be performed, and drainage efficiency is improved. As a result, it is possible to reliably adjust the moisture content of the embedded object and promote the growth of the embedded object.

  In addition, the first groove body and the second groove body will push the soil twice to form a drainage ditch, so compared with the case where a large grooved body pushes the soil at once to form a drainage ditch. And the resistance with respect to the soil in each of the 1st grooving body and the 2nd grooving body can be made small, Therefore, the grooving efficiency can be improved.

Hereinafter, a drain ditch forming apparatus for a paddy field working machine according to an embodiment of the present invention will be described with reference to the accompanying drawings.
1 to 10 show a drain ditch forming apparatus S for a paddy working machine according to an embodiment of the present invention. This device S is provided in a paddy field work machine W such as a seeding machine or a fertilizer applicator for burying a buried object T related to a crop in paddy field soil. In this Embodiment, the paddy field machine W is comprised with the well-known seeding machine which seeds the seed of the rice as the buried thing T. As shown in FIG. This paddy field machine W includes a flat lower surface 2a that is pressed against the soil surface to level the soil surface, and includes a float 1a that is symmetrical with respect to the center line along the traveling direction. The float 1a is provided in a machine frame F at the rear of the paddy field work machine W.

  This apparatus S provided in this paddy field work machine W is moved to the base body 1 provided in the paddy field work machine W, and moved by the traveling of the paddy field work machine W provided in the base body 1 to push the soil down to the soil surface. The first groove body 10 for forming the ground groove and the ground groove G provided by the first groove body 10 provided on the rear side in the traveling direction from the first groove body 10 of the base body 1 are further pushed away to drain the water. A second groove body 20 that is shaped into the groove D is provided.

  In the embodiment, the base body 1 is constituted by the float 1a. As shown in FIGS. 1 to 5 and FIGS. 7 to 10, the base body 1 as the float 1 a is supported by the other end of a rod-like attachment member Fa that is attached to the machine frame F of the paddy field work machine W. The mounting member Fa can be moved up and down to some extent. The base body 1 is formed in a streamlined plate shape having a flat lower surface 2 that is pressed against the soil surface to level the soil surface. The base body 1 is formed symmetrically with respect to the center line 3 along the traveling direction, and the first groove body 10 and the second groove body 20 are formed on the center line 3 of the lower surface 2 of the base body 1. Has been placed. Moreover, it is the lower surface 2 of the base body 1, Comprising: The position extended in the front side of the upper end 11 of the 1st groove body 10, and the right-and-left side is the pressing surface 12 which presses down the soil pushed away by the 1st groove body 10. Is formed.

  As shown in FIGS. 1 to 4, 7, 9, and 10 (A), the first grooved body 10 has a front end 13 that is inclined and has a front end 13 that is formed in a planar shape facing the traveling direction. It is formed in a shape and is provided on the center line 3 of the lower surface 2 of the base body 1 and connected by screws 4. The first groove body 10 is formed such that the projection surface 14 projected in the traveling direction is rectangular.

  As shown in FIGS. 1 to 3, 5 to 9, and FIG. 10C, the second groove body 20 has a front end 21 that is inclined and has a front end 21 that is formed in a planar shape facing the traveling direction. It is formed in a shape, is spaced apart from the first grooved body 10 by a desired distance, and is provided by being connected to the rear end portion 5 of the hat shape in cross section protruding to the rear side of the base body 1 with a screw 22. In the second grooved body 20, the side surface 24 is inclined so that the projection surface 23 projected in the traveling direction has a triangular shape with a sharp lower end. Further, on the left and right sides of the upper end 25 of the second groove body 20, wings 26 for pressing the soil pushed away by the second groove body 20 are provided. The wing 26 has an outer surface 26 a formed along the extended surface of the side surface 24 of the second grooved body 20. In the embodiment, the wing 26 includes a bottom plate 26b that is in contact with the upper end 25 of the second grooved body 20, and a rising outer surface 26a that extends from the left and right edges of the bottom plate 26b in the advancing direction. The bottom plate 26b is interposed between the rear end portion 5 and the second grooved body 20, and the second grooved body 20 from the rear side with screws 22 is configured. It is fixed to the end 5.

  Further, as shown in FIGS. 1 to 3, 9, and 10 (B), the paddy field work machine W can be buried in the soil surface by being immersed in the soil and moved by traveling. A pair of embedded groove forming bodies 30 that are formed at a predetermined interval are formed. The embedded product groove body 30 is similar to the second groove body 20 and is smaller than the second groove body 20. Further, the pair of embedded product groove bodies 30 are provided on the lower surface 2 of the base body 1 made of the float 1a at symmetrical positions with the center line 3 interposed therebetween. Further, the pair of embedded product groove bodies 30 are provided between the first groove body 10 and the second groove body 20 in the direction along the traveling direction. The paddy field work machine W is equipped with a well-known seeding device for seeding rice seeds in the buried material groove U formed by the buried material groove body 30 and stored in a storage tank (not shown). Rice seeds as the buried object T are put into the buried object groove U from the seed guiding part 31 provided on the rear side of the buried object groove body 30.

  Furthermore, as shown in FIGS. 1, 2, and 10 (C), on the rear side in the advancing direction of the buried article groove body 30, the buried article groove U passes over the buried article groove U and covers the buried article groove U with soil. A well-known covering body 40 is provided.

  Therefore, when seeding rice seeds as the buried object T with this paddy field work machine W, the paddy field work machine W is driven to run on the soil surface. When the paddy field work machine W is run, the base body 1 made of the float 1a is moved in contact with the soil surface of the paddy field in the drain groove forming apparatus S according to the present embodiment. The front end 13 of the groove producing body 10 pushes away the soil, whereby a ground groove G is formed on the soil surface. At this time, since the front end 13 of the first grooving body 10 is formed to be inclined, the resistance to soil can be reduced, and therefore the grooving efficiency can be improved. Moreover, since the soil pushed away by the first groove body 10 is moved to the front side in the traveling direction of the front end 13 of the first groove body 10 and pressed against the lower side of the soil, the soil of the ground groove G The presser foot is surely shaped and neatly shaped.

  The soil pushed away by the first groove body 10 is moved to the front side and the left and right sides of the front end 13 of the first groove body 10. The moved soil is pressed against the soil surface by the pressing surface 12. As a result, it is possible to suppress the situation where the pushed soil enters the ground groove G and returns.

  As shown in FIG. 10A, the base groove G formed in this way is formed in a rectangular shape corresponding to the projection surface 14 of the first groove body 10 as shown in FIG. Since the base body 1 as the float 1a is pressed against the soil surface, the base groove G can be formed as required.

  And when the paddy field work machine W was run, it was pushed away by the first groove body 10, moved to the left and right sides in the traveling direction of the first groove body 10, and pressed against the soil surface by the presser surface 12. A pair of buried object grooves 30 are immersed in the soil. As shown in FIG. 10B, a pair of buried object grooves U are formed on the left and right of the base groove G by the movement of the buried object groove body 30, and the buried object T stored in a storage tank (not shown). The rice seeds are put into the buried article groove U from the seed guiding part 31 provided on the rear side of the buried article groove body 30.

  As the paddy work machine W further travels, the second groove body 20 provided at a desired distance from the first groove body 10 on the rear side in the traveling direction of the first groove body 10 is The soil in the trench G is further pushed away, and the depth and width of the base trench G are increased. As a result, the base groove G is shaped into the drainage groove D. At this time, since the front end 21 of the second groove body 20 is formed to be inclined, the resistance to soil can be reduced, and therefore the groove formation efficiency can be improved. Moreover, since the second groove body 20 only pushes further the soil of the ground groove G formed in a certain depth and width in advance, the area where the second groove body 20 is in contact with the soil is reduced accordingly. Even in this respect, the resistance to soil is reduced. That is, since the drainage groove D is formed by pushing the soil twice, the first groove body 10 and the first groove body 10 are compared with the case where the drainage groove D is formed by pushing the soil at a time with a large groove body. The resistance to soil in each of the two grooved bodies 20 can be reduced, and therefore the grooved efficiency can be improved. Furthermore, since the soil pushed away by the second groove body 20 is moved to the front side in the traveling direction of the front end 21 of the second groove body 20 and pressed against the lower side of the soil, The presser foot is ensured and it is neatly shaped.

  Since the wing 26 presses the soil that has been pushed away by the second groove body 20 and moved to the left and right in the traveling direction of the second groove body 20, the situation where the pushed soil enters the drainage groove D and returns. It is possible to suppress the soil pressing of the drainage ditch D, and it is neatly shaped and hardly collapses. Moreover, since the outer surface 26a of the wing 26 is formed along the extended surface of the side surface 24, the drainage groove D can be shaped more beautifully.

  As shown in FIG. 10C, the drainage groove D shaped in this way is shaped into a V-shape with a sharp lower end corresponding to the projection surface 23 of the second grooved body 20. Therefore, water can easily flow and drainage efficiency can be improved. Since the base body 1 as the float 1a is pressed against the soil surface, the drainage groove D can be formed into a required one. The drainage groove D is formed by forming the base groove G and then shaping it, that is, the drainage groove D is displaced twice by the soil by the first groove body 10 and the second groove body 20. Therefore, the drainage groove D can be formed deep and wide with respect to the original ground GL, and the soil pressing of the drainage groove D is ensured and is neatly shaped and is not easily broken. For this reason, the drainage groove D becomes a required one, the drainage from the drainage groove D can be sufficiently performed, and the drainage efficiency can be improved.

  At this time, the soil covering body 40 provided on the base body 1 is pushed away by the second groove body 20 and moved to the left and right in the direction of travel of the second groove body 20. 1 to move back to the center line 3 side. As a result, as shown in FIG. 10C, the soil pushed away by the second groove body 20 partially covers the buried object groove U, and the buried object T becomes embedded in the buried object groove U. Buried.

  In this way, the buried object T is buried in the soil of the paddy field and the drainage groove D is formed. The buried object T requires an appropriate amount of moisture, and if the moisture is too much or too little, the growth of the buried object T is hindered. The drainage groove D formed by the device S of the present invention is formed deep and wide with respect to the original ground GL, and the soil presser is ensured and is neatly shaped and hard to collapse. , Drainage efficiency is improved. Further, since the buried object groove U in which the buried object T is buried is always formed on the left and right of the drainage groove D, the buried object groove U can be drained more reliably. That is, the drainage groove D can sufficiently drain the buried object groove U, so that the moisture adjustment of the buried object T can be reliably performed and the growth of the buried object T can be promoted. it can.

  Thus, when the paddy field work machine W is made to travel while forming the drainage groove D, the paddy field work machine W reaches the edge of the paddy field. In this case, the paddy field work machine W is swung, the traveling direction is reversed, the paddy field work machine W is traveled along the drainage groove D formed, and at a position separated from the formed drainage groove D by a certain distance, A new drainage ditch D is formed. At this time, since the base body 1 is constituted by the float 1a, the drainage groove is formed as compared with the case where the drainage groove forming device S is attached to the rear part of the paddy field work machine W via the arm as in the conventional case. The device S is not positioned so as to protrude to the rear part of the paddy field work machine W. Therefore, even when the paddy field work machine W turns at the shore, the small turn is effective, and therefore the work efficiency can be improved.

In the above embodiment, the base body 1 is configured by the float 1a. However, the present invention is not necessarily limited to this. For example, the base body 1 may be attached to the float 1a. It may be attached to a part other than the float 1a of the work machine W, and may be appropriately changed.
Moreover, in the said embodiment, although the 1st grooved body 10 and the 2nd grooved body 20 were provided apart by desired distance, it is not necessarily limited to this, The end and the front end 21 of the second grooved body 20 may be provided in series, and may be changed as appropriate.
Furthermore, in the said embodiment, although the shape of the projection surface 14 of the 1st grooved body 10 was formed so that it might become rectangular shape, it is not necessarily limited to this, For example, the 2nd grooved body 20 of Similar to the shape of the projection surface 23, it may be formed in a triangular shape with a sharp lower end, and may be changed as appropriate.

  In addition, in the said embodiment, although the pressing surface 12 was formed in the lower surface 2 of the base body 1, it is not necessarily limited to this, For example, as shown in FIG. In addition, a pressing portion 15 having a pressing surface 12 that bulges from the lower surface 2 of the base body 1 and presses away the soil pushed by the first groove body 10 may be provided, and may be appropriately changed.

It is a perspective view showing the drain ditch formation device of the paddy field machine concerning an embodiment of the invention. It is a bottom view showing the drain ditch formation device of the paddy field machine concerning an embodiment of the invention. It is a side view showing the drain ditch formation device of the paddy field machine concerning an embodiment of the invention. FIG. 3 is a cross-sectional view taken along line AA in FIG. It is a rear view which shows the drain ditch formation apparatus of the paddy field machine concerning embodiment of this invention. It is a perspective view which shows the 2nd grooved body which concerns on embodiment of this invention. It is a partially expanded plan view which shows the state which provided the drain ditch formation apparatus of the paddy field machine concerning embodiment of this invention in the paddy field machine. It is a partially expanded rear view which shows the state which provided the drain ditch formation apparatus of the paddy field working machine which concerns on embodiment of this invention in the paddy field working machine. It is a partially expanded side view which shows the state which provided the drain ditch formation apparatus of the paddy field machine concerning embodiment of this invention in the paddy field machine. The groove | channel formed with the drainage groove | channel formation apparatus of the paddy field machine which concerns on embodiment of this invention is shown, (A) is the base | substrate groove | channel formed with the 1st groove body, (B) is a buried object groove body. The formed buried groove, (C), is a view showing a drain groove formed by the second groove body. It is a perspective view which shows the drain groove forming apparatus of the paddy field machine which provided the pressing part in the lower surface of the base body. An example of the drainage groove formation apparatus of the conventional paddy field machine is shown, (A) is a top view which shows the state attached to the paddy field machine, (B) is a partially expanded rear view which shows the state attached to the paddy field machine is there. It is a figure which shows the drain ditch formed with the drain ditch formation apparatus of the conventional paddy field machine.

Explanation of symbols

S Paddy field work machine drainage groove forming device W Paddy field work machine F Machine frame Fa Mounting member T Embedded object G Ground groove U Embedded object groove D Drainage groove 1 Base body 1a Float 2 Lower surface 3 Center line 4 Screw 5 Rear end 10 First One grooved body 11 Upper end 12 Pressing surface 13 Front end 14 Projection surface 20 Second grooved body 21 Front end 22 Screw 23 Projection surface 24 Side surface 25 Upper end 26 Wing 30 Embedded object grooved body 40 Covering body

Claims (22)

In the drainage ditch forming apparatus of the paddy field work machine that is provided in the paddy field work machine that embeds the buried object related to the crop with respect to the soil of the paddy field and forms a drainage groove on the soil surface by running of the paddy field work machine,
A base body provided in the paddy field working machine, a first groove body which is provided in the base body and is moved by traveling of the paddy field working machine to push the soil away to form a ground groove on the soil surface; and the base body A second groove body that is provided on the rear side in the traveling direction from the first groove body of the first groove body to further push the soil of the ground groove formed by the first groove body and shape it into a drainage groove ,
A drainage groove forming apparatus for a paddy field machine, wherein the first grooved body and the second grooved body are formed in a ship shape having an inclined front end . The drain groove forming apparatus for a paddy field machine according to claim 1 , wherein the front end of at least one of the first grooved body and the second grooved body is formed in a planar shape facing the traveling direction. To the base body, according to claim 1 or 2, characterized in that the formation of the pressing surface for pressing the soil displaced by extension Mashimashi said first work groove body in the front and left and right side of the upper end of the first work groove body The drain ditch formation apparatus of the paddy field machine of description . The second groove body is provided at a rear end portion of the base body, and wings are provided on the left and right sides of the upper end of the second groove body to press the soil pushed away by the second groove body. The drain ditch formation apparatus of the paddy field machine according to any one of claims 1 to 3 . The projection surface of the second grooved body is projected in the direction of travel, and the side surface is inclined so that the lower end is a triangular shape, and the outer surface of the wing is formed along the extended surface of the side surface. The drain ditch formation apparatus of the paddy field machine of Claim 4 characterized by the above-mentioned . The paddy field machine includes a float that is pressed against the soil surface and has a flat bottom surface that smooths the soil surface, and is symmetrical with respect to the center line along the traveling direction, and the base body is configured by the float. The drain groove forming apparatus for paddy field machine according to any one of claims 1 to 5 , wherein the first groove body and the second groove body are arranged on a center line of the float. The paddy field machine includes a pair of buried groove forming bodies that are immersed in the soil and moved by traveling to form a buried groove that can be buried in the soil surface and spaced apart at a predetermined interval, 7. A drain groove forming apparatus for a paddy field machine according to claim 6 , wherein a pair of buried object groove forming bodies are provided at symmetrical positions with the center line sandwiched between said float base bodies. The drainage groove forming apparatus for paddy field work machine according to claim 6 or 7 , wherein the base body as the float is supported at the other end of a rod-shaped mounting member attached to the paddy field work machine. In the drainage ditch forming apparatus of the paddy field work machine that is provided in the paddy field work machine that embeds the buried object related to the crop with respect to the soil of the paddy field and forms a drainage groove on the soil surface by running of the paddy field work machine,
A base body provided in the paddy field working machine, a first groove body which is provided in the base body and is moved by traveling of the paddy field working machine to push the soil away to form a ground groove on the soil surface; and the base body A second groove body that is provided on the rear side in the traveling direction from the first groove body of the first groove body to further push the soil of the ground groove formed by the first groove body and shape it into a drainage groove ,
Drainage of a paddy field machine characterized in that the base body is formed with a pressing surface that extends to the front side and the left and right sides of the upper end of the first groove body and presses the soil pushed away by the first groove body. Groove forming device. The second groove body is provided at a rear end portion of the base body, and wings are provided on the left and right sides of the upper end of the second groove body to press the soil pushed away by the second groove body. The drain ditch formation apparatus of the paddy field machine according to claim 9 . The projection surface of the second grooved body is projected in the direction of travel, and the side surface is inclined so that the lower end is a triangular shape, and the outer surface of the wing is formed along the extended surface of the side surface. The drain ditch formation apparatus of the paddy field machine of Claim 10 characterized by the above-mentioned . The paddy field machine includes a float that is pressed against the soil surface and has a flat bottom surface that smooths the soil surface, and is symmetrical with respect to the center line along the traveling direction, and the base body is configured by the float. The drain groove forming apparatus for a paddy field machine according to any one of claims 9 to 11 , wherein the first groove body and the second groove body are arranged on a center line of the float. The paddy field machine includes a pair of buried groove forming bodies that are immersed in the soil and moved by traveling to form a buried groove that can be buried in the soil surface and spaced apart at a predetermined interval, The drain groove forming apparatus for a paddy field work machine according to claim 12 , wherein a pair of buried product groove forming bodies are provided at symmetrical positions with the center line sandwiched between the float base body. The drainage groove forming apparatus for paddy field work machine according to claim 12 or 13 , wherein the base body as the float is supported on the other end of a rod-shaped mounting member attached to the paddy field work machine. In the drainage ditch forming apparatus of the paddy field work machine that is provided in the paddy field work machine that embeds the buried object related to the crop with respect to the soil of the paddy field and forms a drainage groove on the soil surface by running of the paddy field work machine,
A base body provided in the paddy field working machine, a first groove body which is provided in the base body and is moved by traveling of the paddy field working machine to push the soil away to form a ground groove on the soil surface; and the base body A second groove body that is provided on the rear side in the traveling direction from the first groove body of the first groove body to further push the soil of the ground groove formed by the first groove body and shape it into a drainage groove ,
The second groove body is provided at a rear end portion of the base body, and wings are provided on the left and right sides of the upper end of the second groove body to press the soil pushed away by the second groove body. Drainage ditch forming device for paddy field machines. The projection surface of the second grooved body is projected in the direction of travel, and the side surface is inclined so that the lower end is a triangular shape, and the outer surface of the wing is formed along the extended surface of the side surface. The drain groove forming apparatus for a paddy field machine according to claim 15 , wherein the drain groove forming apparatus is a paddy field working machine. The paddy field machine includes a float that is pressed against the soil surface and has a flat bottom surface that smooths the soil surface, and is symmetrical with respect to the center line along the traveling direction, and the base body is configured by the float. The drainage groove forming apparatus for a paddy field machine according to claim 15 or 16 , wherein the first grooved body and the second grooved body are arranged on a center line of the float. The paddy field machine includes a pair of buried groove forming bodies that are immersed in the soil and moved by traveling to form a buried groove that can be buried in the soil surface and spaced apart at a predetermined interval, The drain groove forming apparatus for a paddy field machine according to claim 17 , wherein a pair of buried product groove forming bodies are provided at symmetrical positions with the center line sandwiched between said float base bodies. The drainage groove forming apparatus for a paddy field working machine according to claim 17 or 18 , wherein the base body as the float is supported at the other end of a rod-shaped mounting member attached to the paddy field working machine. In the drainage ditch forming apparatus of the paddy field work machine that is provided in the paddy field work machine that embeds the buried object related to the crop with respect to the soil of the paddy field and forms a drainage groove on the soil surface by running of the paddy field work machine,
A base body provided in the paddy field working machine, a first groove body which is provided in the base body and is moved by traveling of the paddy field working machine to push the soil away to form a ground groove on the soil surface; and the base body A second groove body that is provided on the rear side in the traveling direction from the first groove body of the first groove body to further push the soil of the ground groove formed by the first groove body and shape it into a drainage groove ,
The paddy field machine includes a float that is pressed against the soil surface and has a flat bottom surface that smooths the soil surface, and is symmetrical with respect to the center line along the traveling direction, and the base body is configured by the float. In addition, the drainage groove forming apparatus for a paddy field machine, wherein the first grooved body and the second grooved body are arranged on the center line of the float. The paddy field machine includes a pair of buried groove forming bodies that are immersed in the soil and moved by traveling to form a buried groove that can be buried in the soil surface and spaced apart at a predetermined interval, 21. The drain groove forming apparatus for a paddy field machine according to claim 20 , wherein a pair of buried object groove forming bodies are provided at symmetrical positions with the center line sandwiched between said float base bodies. The drainage groove forming apparatus for a paddy field working machine according to claim 20 or 21 , wherein the base body as the float is supported on the other end of a rod-shaped mounting member attached at one end to the paddy field working machine.

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