attachment

Abstract

To provide an attachment capable of reducing a burden of a worker.SOLUTION: An attachment 1 is used by being detachably attached to a rotation shaft of a levee plastering machine instead of a levee formation body. The attachment 1 includes an attachment body 41 that forms a temporary levee while followingly rotating on the basis of a force from a levee side. The attachment body 41 includes openings 71 for soil releasing that release soil to a side opposite to the temporary levee. The plurality of openings 71 for soil releasing are formed on a side surface formation part 46 of the attachment body 41.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to an attachment that can reduce the burden on a worker. [Background technology]

[0002] BACKGROUND ART Conventionally, for example, a ridge cutting machine (a working machine dedicated to cutting ridges) is known, as described in Patent Document 1 below.

[0003] This conventional ridge trimmer is used to trim the top and sides of the ridges that have become larger in width and height each time the ridge painting work is performed with a ridge painting machine, thereby adjusting the height and width of the ridges.

[0004] The ridge cutting machine is equipped with an upper surface cutting unit that is driven to remove soil from the upper surface of the ridge, and a side surface cutting unit (slope cutting unit) that is driven to remove soil from the side surface (slope) of the ridge. The upper surface cutting unit has a soil transport body that removes soil from the upper surface of the ridge and transports the soil to the side surface of the ridge, and the side surface cutting unit has a soil transport body that removes soil from the side surface of the ridge and transports the soil downward to the surface of the rice field. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-60977 Summary of the Invention [Problem to be solved by the invention]

[0006] However, the above-mentioned conventional ridge cutting machines are dedicated to ridge cutting and are therefore expensive, so purchasing such relatively expensive ridge cutting machines is a heavy burden for farmers and other workers.

[0007] The present invention has been made in consideration of the above points, and has an object to provide an attachment that can reduce the burden on the worker. [Means for solving the problem]

[0008] The present invention is an attachment that can be detachably attached to the rotating part of a ridge application machine in place of a ridge forming body, and is provided with an attachment body that forms temporary ridges, and the attachment body has an opening that allows soil to escape to the side opposite the temporary ridge.

[0009] The present invention also provides an attachment that can be detachably attached to the rotating part of a ridge application machine in place of a ridge forming body, and is provided with an attachment body that forms a temporary ridge while rotating based on force from the ridge side, and the attachment body has an opening that allows soil to escape to the side opposite the temporary ridge. [Effects of the Invention]

[0010] According to the present invention, the burden on the worker can be reduced. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a plan view showing a ridge coating machine with an attachment attached thereto according to an embodiment of the present invention. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. 10 is a cross-sectional view of the same attachment after the position has been changed. [Figure 5] 10A and 10B are diagrams showing the procedure for adjusting the size of a ridge. [Figure 6] 1(a) to 1(c) are explanatory diagrams for explaining the above-mentioned work procedure. [Figure 7] (d) to (f) are explanatory diagrams following FIG. [Figure 8] FIG. 10 is a perspective view of an attachment according to another embodiment of the present invention. [Figure 9] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0012] An embodiment of the present invention will be described with reference to FIGS.

[0013] 1 to 4, reference numeral 1 denotes an attachment (guide roller) for forming temporary ridges, and this attachment 1 is used by being detachably attached to a rotating shaft (drive rotating shaft) 3, which is the rotating part of a ridge coating machine 2. In other words, this attachment 1 is detachably attached to the rotating shaft 3 in the left-right direction of the ridge coating machine 2 in place of a ridge forming body 10 for forming a new ridge (see FIGS. 6(a) to (c)).

[0014] The normal state of the ridge coating machine 2 (the state shown in Figure 6(a)) is when the ridge former 10 is attached to the rotary shaft 3. In this normal state, the ridge coating machine 2 is connected to the rear of a tractor (not shown), which is a traveling vehicle, and performs ridge coating work while moving forward (in the direction of travel) in a forward working state as the tractor travels forward. In addition, at the corners of the field, the ridge coating machine 2 is switched from the forward working state to a return working state, and then performs ridge coating work while moving backward (in the direction of travel) in a return working state as the tractor travels backward.

[0015] The ridge-plastering work using this normal ridge-plastering machine 2 is a ridge repair work that repairs original ridges that have cracks and moleholes before water is drawn into the field (paddy field) to form new, strong ridges that are less likely to collapse. However, because field soil (soil from the rice field surface) is added to the original ridge during this process, as the ridge-plastering work is repeated every year, the ridges become wider in width and taller, resulting in them becoming larger than necessary. Attachment 1 is used to return these enlarged ridges to the desired size.

[0016] The ridge coating machine 2 in its normal state comprises a body 6 that is detachably connected to a three-point link at the rear of the tractor, a soil filler body (cultivation section) 7 that rotates in a predetermined direction to till the rice field surface (field surface) and the original ridge and pile up the soil (cultivated soil) onto the original ridge, a ridge forming body (disk section) 10 that rotates in a predetermined direction to compact the soil (cultivated soil) piled up by the soil filler body 7 to form a new ridge, and an upper surface scraping body (upper surface scraping section) 8 that scrapes the upper surface of the original ridge while rotating in a predetermined direction.

[0017] The embankment body 7, top surface scraping body 8, and ridge forming body 10 are covered by cover bodies 11, 12, and 13, respectively. The cover body 13 covers a part of the ridge side forming portion 31 of the ridge forming body 10, and when the attachment 1 is in use, a part of the attachment 1 is covered by the cover body 13.

[0018] Furthermore, when attached to the rotating shaft 3, the ridge forming body 10 is driven to rotate in a predetermined direction together with the rotating shaft 3 based on power from the input shaft side (not shown), but since its peripheral speed is faster than the traveling speed of the tractor, it slips and rotates relative to the ridge.

[0019] Even when the attachment 1 is attached to the rotary shaft 3, the rotational force (power) of the rotary shaft 3 is not transmitted to the attachment body 41, so the attachment body 41 rotates in a predetermined direction based on the force from the ridge on which it is grounded. In other words, this non-driven attachment body 41 moves along the ridge while rotating in response to the travel (movement) of the tractor while in contact with the ridge, without receiving power from the rotary shaft 3 side of the ridge coating machine 2.

[0020] The machine body 6 has a machine frame 16 that is detachably connected to a three-point link (not shown) at the rear of the tractor. An input shaft (not shown) is rotatably provided on the machine frame 16, and the PTO shaft of the tractor is connected to this input shaft via a joint.

[0021] Then, based on the power (driving force) input by the input shaft, the embankment body 7, upper surface scraper 8, and ridge forming body 10 are each driven to rotate and perform work. The embankment body 7, upper surface scraper 8, and ridge forming body 10 make up the working section 20. However, when the attachment 1 is in use, the working section 20 is made up of the embankment body 7, upper surface scraper 8, and attachment 1.

[0022] Furthermore, a movable machine frame 17 is connected to the machine frame 16 via connecting means 18, and a working unit 20 is provided on this movable machine frame 17. The movable machine frame 17 moves due to the extension and contraction of cylinders 21 and 22, which are telescopic drive means, and the position of the working unit 20 is changed, thereby selectively switching the ridge coating machine 2 to the desired state (forward working state, storage state, or return working state). Furthermore, the movable machine frame 17 is provided with gauge wheels (direction wheels) 23 that run in contact with the rice field surface.

[0023] The embankment body 7 has a rotation shaft 26 in the front-rear direction that is driven to rotate based on power from the input shaft side, and a plurality of tillage tines 27 for embankment are attached to this rotation shaft 26. Like the embankment body 7, the top surface scraping body 8 also has a rotation shaft 28 in the front-rear direction that is driven to rotate based on power from the input shaft side, and a plurality of tillage tines 29 for top surface scraping are attached to this rotation shaft 28.

[0024] The ridge forming body 10 has a truncated cone-shaped (including approximately truncated cone-shaped; the same applies below) ridge side forming portion 31 that compacts the embankment made by the embankment body 7 to form the inclined side surface (ridge side surface) of the new ridge, and a cylindrical (including approximately cylindrical; the same applies below) ridge top surface forming portion 32 that is provided at the end of the narrower diameter side of this ridge side forming portion 31 and compacts the embankment made by the embankment body 7 to form the horizontal top surface (ridge top surface) of the new ridge (see Figure 7(f)).The end of the ridge top surface forming portion 32 on the ridge side forming portion 31 side is truncated cone-shaped, and this truncated cone-shaped end forms the inclined shoulder surface (ridge shoulder surface) of the new ridge.

[0025] The ridge side forming section 31 has a plurality of ridge side forming plates 33 that compact the embankment by pushing it in at the rear side in the direction of rotation to form the ridge side. The multiple ridge side forming plates 33 are lined up in the direction of rotation, and linear steps 34 are formed between adjacent ridge side forming plates 33 in the direction of rotation. In addition, a plurality of spiral steps 35 are formed on the outer peripheral surface of the ridge top surface forming section 32. The action of these steps 34, 35 strongly compacts the embankment, forming a strong new ridge that is resistant to collapse. The ridge side forming section 31 has a cylindrical mounting section (not shown) on the rotation center side, and this mounting section is directly and detachably attached to the outer peripheral side of the rotating shaft 3.

[0026] As is clear from Figures 2 and 3, the attachment 1 is formed to have approximately the same shape and size as, for example, the ridge forming body 10, and is used by being detachably attached to the rotating shaft 3 of the ridge coating machine 2 in place of the ridge forming body 10.

[0027] Here, the attachment 1 comprises a non-driven attachment body 41 which, regardless of the driving rotation of the rotating shaft 3 based on power from the input shaft side, is driven to rotate in a predetermined direction around a horizontal left-right rotation center axis X relative to the rotating shaft 3 based on force from the ridge side, thereby loosely compacting the embankment made by the embankment body 7 to form a temporary ridge, and a soil adhesion prevention body 42 which is detachably attached to the outer surface (ground contact surface) of the attachment body 41 by an attachment means 43 and prevents soil from adhering to the outer surface of the attachment body 41.

[0028] The temporary ridges formed by the non-driven attachment body 41 are ridges formed prior to the formation of new ridges, and unlike the strong new ridges formed by the driven ridge forming body 10, the soil on the surface is soft and more likely to crumble than the new ridges.

[0029] The attachment main body (driven rotating body) 41 has a truncated cone-shaped side forming portion 46 that loosely compacts the embankment made by the embankment body 7 to form the inclined side of the temporary ridge, and a cylindrical upper surface forming portion 47 that is provided at the end of the narrowing diameter side of this side forming portion 46 and loosely compacts the embankment made by the embankment body 7 to form the horizontal upper surface of the temporary ridge.

[0030] The truncated conical outer surface of the side surface forming portion 46 is covered by a plurality of plate-shaped first soil adhesion prevention members 51 aligned in the direction of rotation, and the cylindrical outer surface of the top surface forming portion 47 is covered by a plurality of plate-shaped second soil adhesion prevention members 52 aligned in the direction of rotation. These first soil adhesion prevention members 51 and second soil adhesion prevention members 52 constitute the soil adhesion prevention body 42.

[0031] Each soil adhesion prevention member (e.g., an elastic soil adhesion prevention plate) 51, 52 is made of a material to which soil does not easily adhere, such as an elastically deformable rubber plate, resin plate, or metal plate. The front end of each soil adhesion prevention member 51, 52 in the rotational direction is detachably attached to the outer surface of the attachment body 41 (the outer peripheral surface of the side surface forming portion 46 and the outer peripheral surface of the top surface forming portion 47) by attachment means 43. Adjacent soil adhesion prevention members 51, 52 are arranged so that they partially overlap each other in the rotational direction, but the overlapping portion does not have to be present.

[0032] In the illustrated example, the entire outer peripheral surface of the side forming portion 46 and the entire outer peripheral surface of the top surface forming portion 47 are covered with the soil adhesion prevention body 42, but for example, only a portion of the outer peripheral surface may be covered with a soil adhesion prevention body such as an elastic member, or, for example, the outer surface of the attachment body 41 may be exposed without providing the soil adhesion prevention body 42. Furthermore, in the illustrated example, the soil adhesion prevention member is attached to the attachment body at its front end in the rotational direction, but for example, the soil adhesion prevention member may be attached to the attachment body at its front end in the rotational direction and at an intermediate portion in the rotational direction.

[0033] In addition, the attachment body 41 has a securing means 55 for ensuring the straightness of movement of the ridge coating machine 2 in the direction of travel based on the movement of the tractor when working with the ridge coating machine 2 with the attachment 1 attached to the rotating shaft 3 (during temporary ridge formation work).

[0034] The securing means 55 has an inner plate 56 which is an annular, plate-shaped first insertion part located at the inner end (left end), which is one end in the left-right direction of the attachment body 41, and whose outer peripheral end is inserted so as to pierce the rice field surface, and an outer plate 57 which is an annular, plate-shaped second insertion part located at the outer end (right end), which is the other end in the left-right direction of the attachment body 41, and whose outer peripheral end is inserted so as to pierce the upper surface of the temporary ridge. In other words, the securing means 55 is made up of the inner plate 56 and the outer plate 57, which are different in size.

[0035] The inner plate 56 is provided at the inner end of the side forming portion 46, and the outer peripheral end of this inner plate 56 protrudes radially outward from the inner end of the side forming portion 46. In other words, the inner plate 56 has an annular insertion plate portion 56a at its outer peripheral end that is inserted into the rice field surface. A circular opening 58 is formed in this inner plate 56.

[0036] A plurality of mounting holes 54 are formed in the insertion plate portion 56a of the inner plate 56 and spaced apart in the circumferential direction. These mounting holes 54 are used to attach to the inner plate 56 an expansion member (not shown) that is inserted deeper into the paddy field surface than the insertion plate portion 56a, an extended soil adhesion prevention member (not shown) that prevents soil from adhering to the insertion plate portion 56a, etc.

[0037] The outer plate 57 is provided at the outer end, which is the end opposite the side surface forming portion 46 side of the upper surface forming portion 47, and the outer peripheral end of this outer plate 57 protrudes radially outward from the outer end of the upper surface forming portion 47. In other words, the outer plate 57 has an annular insertion plate portion 57a ​​at its outer peripheral end that is inserted into the upper surface of the temporary ridge.

[0038] A circular opening 59 is formed in the outer plate 57, and the opening 59 is closed by a lid 60 which can be opened and closed. The lid 60 is detachably attached to the outer plate 57 by the attachment means 50.

[0039] 3, the attachment body 41 has a cylindrical mounting portion (boss) 61 provided at the outer end (right end) of the side surface forming portion 46. This mounting portion 61 is detachably attached to the outer periphery of the rotating shaft 3 by mounting means 62 via a bearing (bearing member) 63 and an inner boss (cylindrical member) 64. The bearing 63 and inner boss 64 form a blocking means 65 that blocks the transmission of power (rotational force) from the rotating shaft 3 to the attachment body 41.

[0040] That is, the attachment body 41 is rotatably attached to the rotating shaft 3 via a power transmission interruption means (bearing means) 65. In short, the mounting part 61 of the attachment body 41 is detachable and rotatable with respect to the rotating shaft 3.

[0041] Unlike the mounting part (not shown) on the rotation center side of the ridge forming body 10, power is not transmitted from the rotating shaft 3 to the mounting part 61 on the rotation center side of the attachment body 41. Therefore, unlike the ridge forming body 10, the attachment body 41 is not driven to rotate by power from the rotating shaft 3, but is driven to rotate based on the force it receives from the ridge side where it is grounded.

[0042] The mounting means 62 is composed of, for example, a bolt 66 that can be threaded onto the female thread portion 3a of the rotary shaft 3, a cylindrical collar 67, and a washer 68 through which the shaft portion 66a of the bolt 66 is inserted.

[0043] 4, the left-right position of the attachment body 41 relative to the rotary shaft 3 can be changed by changing the position of the collar 67, which is a position adjustment member. In other words, the left-right position of the attachment body 41 relative to the rotary shaft 3 of the ridge coating machine 2 can be adjusted.

[0044] On the other hand, the attachment body 41 has a plurality of openings 71 that allow some of the embankment made by the embankment body 7 (the tilled soil plowed by the tillage tines 27) to escape to the opposite side of the temporary ridge (inside the attachment body 41).

[0045] For example, the side surface forming portion 46 of the attachment body 41 has a truncated cone-shaped plate-like member (base member) 72 with a plurality of soil-releasing openings 71 formed therein. That is, the side surface forming portion 46 is composed of a plate-like member 72 having a truncated cone shape tapering toward the top surface forming portion 47 and a predetermined thickness, and a plurality of triangular openings 71 are arranged side by side in the rotational direction at intervals in the plate-like member 72. Each opening 71 is formed penetrating the inner and outer surfaces of the side surface forming portion 46 at the enlarged-diameter end portion.

[0046] Then, soil that has entered between the outer surface of the side forming part 46 (in other words, the outer surface of the plate-like member 72) and the inner surface of the first soil adhesion prevention member 51 is released to the inner surface side (paddy field surface side) of the side forming part 46 through the soil release (soil discharge) opening 71. In other words, the soil that has entered is discharged from the opening 71 formed in the side forming part 46.

[0047] Furthermore, the attachment body 41 has a guard portion 73 that prevents (suppresses) the soil from the soil escape opening 71, i.e., the tilled soil that has been released to the inside of the attachment body 41 by the opening 71, from moving toward the rotating shaft 3.

[0048] The guard portion 73 is composed of, for example, multiple guard plates 74 lined up in the rotational direction, and each guard plate 74 is fixed by welding or the like to the inner surface of the plate-shaped member 72 so as to cover the outer circumferential surface of the rotating shaft 3. The multiple guard plates 74 prevent soil that has passed through the opening 71 of the plate-shaped member 72 and entered the attachment body 41 from entering the rotating shaft 3.

[0049] Next, the operation of the attachment 1 will be described.

[0050] First, referring to Figure 5, we will explain the work procedure (ridge formation method for returning to the desired size) when adjusting the size of a ridge, that is, when returning a ridge that has become large due to repeated ridge painting work to the desired size.

[0051] First, the worker removes the ridge forming body 10 from the rotary shaft 3 of the existing ridge coating machine 2, and then attaches the attachment 1 to the rotary shaft 3. In other words, the worker replaces the ridge forming body 10 with the attachment 1 (step 1).

[0052] Next, using the ridge-plastering machine 2 with the attachment 1 attached to the rotary shaft 3, the attachment 1 loosely compacts the embankment made by the embankment body 7 to form a temporary ridge (step 2). In other words, the top surface of the original ridge is scraped with the top surface scraping body 8 and the original ridge is plowed with the embankment body 7, and the embankment supplied by the embankment body 7 is loosely compacted with the attachment 1 to form a temporary ridge.

[0053] Thereafter, the attachment 1 is removed from the rotary shaft 3 of the ridge coating machine 2, and then the ridge forming body 10 is attached to the rotary shaft 3. In other words, the attachment 1 is replaced with the ridge forming body 10 (step 3).

[0054] Next, using the ridge-plastering machine 2 with the ridge-forming body 10 attached to the rotary shaft 3, the embankment made by the embankment body 7 is compacted with the ridge-forming body 10 to form a new ridge (step 4). That is, the top surface of the temporary ridge is scraped with the top surface scraping body 8, the temporary ridge is plowed with the embankment body 7, and the embankment supplied by the embankment body 7 is compacted with the ridge-forming body 10 to form a new ridge. As a result, the ridge that has grown larger through repeated ridge-plastering operations is reduced in height and width, and a new ridge of the desired size is formed.

[0055] 6 and 7, the worker first removes the ridge former 10 from the rotating shaft 3 of the ridge coating machine 2, as shown in Figures 6(a) and (b). Next, as shown in Figure 6(c), the worker attaches the attachment 1 to the rotating shaft 3 of the ridge coating machine 2.

[0056] Next, as shown in Figures 7(d) and (e), the ridge coating machine 2 (ridge coating machine with attachment in use) with the attachment 1 attached to the rotating shaft 3 is moved in the forward direction along the original ridge by driving the tractor, and the attachment 1 loosely compacts the embankment to form a temporary ridge.

[0057] In other words, when the attachment body 41 is in contact with the ridge via the soil adhesion prevention body 42, it rotates driven by the force from the ridge side, causing the embankment made by the embankment body 7 to loosely compact, forming a temporary ridge with soft soil on the surface.

[0058] At this time, the inner plate 56 of the attachment body 41 is inserted into the rice field surface and the outer plate 57 is inserted into the upper surface of the temporary ridge, ensuring the straightness of the attachment 1's movement along the ridge (the straightness of the movement of the entire ridge coating machine in the direction of travel). Note that, since the rotating shaft 3 of the ridge coating machine 2 does not need to be driven at this time, for example, if the machine is configured with a function to stop the rotation of the rotating shaft 3, the rotating shaft 3 may be stopped when the temporary ridge is formed.

[0059] Furthermore, during the formation of this temporary ridge (temporary ridge formation process), the height of the ridge coating machine 2 is stabilized by the attachment 1 and gauge wheel 23 which are both on the ground, so the cutting depth (plowing depth) for the original ridge can be adjusted by adjusting the relative height of the embankment body 7 to the attachment 1. Similarly, the top surface scraping depth (plowing depth) for the original ridge can also be adjusted by adjusting the relative height of the top surface scraping body 8 to the attachment 1.

[0060] Furthermore, by adjusting one or more soil volume adjusting means, the volume of soil for the temporary ridges that is pressed and loosely compacted by the attachment 1 can be adjusted (see FIG. 1).

[0061] Specifically, for example, by changing the degree of opening of the retaining plate 81 located at the rear of the embankment 7, the amount of soil that is released from the attachment 1 side to the paddy field surface can be adjusted. Also, by changing the angle of the soil adjustment plate 83 on the side cover body 82 located on the outside of the embankment 7, the amount of soil that is released from the attachment 1 side to the opposite side of the paddy field (outside) can be adjusted. Furthermore, by changing the left and right positions of the auxiliary cover 84 on the cover body 11 that covers the embankment 7, the amount of soil that is piled up on the top of the base ridge can be adjusted. Also, by changing the vertical position of the guard 85 on the cover body 11 that covers the embankment 7, the amount of soil that is released from the embankment 7 side to the paddy field surface can be adjusted.

[0062] Then, as shown in Figure 7(f), after replacing the attachment 1 with the ridge forming body 10, the ridge painting work is carried out using the ridge painting machine 2 in its normal state, and the ridge forming body 10 forms a new, strong ridge that is reduced to the desired height and width.

[0063] At this time, the temporary ridge is plowed by the embankment body 7 and the top surface scraping body 8, but because the soil on the surface of this temporary ridge is soft, the embankment body 7 and the top surface scraping body 8 penetrate deeper than usual, and more soil is plowed and scraped away. As a result, the new ridge is smaller than the ridge that has grown larger through repeated ridge-plastering work.

[0064] The work shown in Figure 7(f) (the work of forming a new ridge) can be performed immediately after the work shown in Figure 7(d) (the work of forming a temporary ridge), or it can be performed after a predetermined period of time has passed. For example, if it is performed after a predetermined period of time has passed, part of the temporary ridge may collapse due to rainwater or the like, and the soil may be returned to the rice field surface. Also, when forming a new ridge, the amount of soil for the new ridge can be adjusted, just as when forming a temporary ridge.

[0065] Furthermore, with the above-mentioned attachment 1, farmers and other workers can adjust larger ridges to the desired size by using a relatively inexpensive attachment 1 that has a non-driven attachment body 41 that forms temporary ridges by rotating driven by force from the ridge side, with the rotating shaft 3 as the center of rotation.This means that there is no need to purchase a relatively expensive ridge cutting machine, and therefore the financial burden and other burdens placed on workers can be reduced.

[0066] Furthermore, since the attachment body 41 is provided with a soil adhesion prevention body 42 that prevents soil from adhering to the attachment body 41, soil can be appropriately prevented from adhering to the attachment body 41 during work, thereby eliminating the need for the effort of removing soil, etc., and reducing the burden on the worker.

[0067] Furthermore, the attachment body 41 has a truncated cone-shaped side forming portion 46 that forms the side of the temporary ridge, and a cylindrical upper surface forming portion 47 that forms the upper surface of the temporary ridge, so that a temporary ridge with a shape similar to a normal ridge is formed.As a result, the working position is easily stabilized when forming a new ridge, and the desired amount of soil fill (the amount of soil supplied to the ridge forming body 10) can be set easily, which also reduces the burden on the worker.

[0068] In addition, the attachment main body 41 has a soil escape opening 71 that allows some of the soil plowed by the embankment body (cultivation section) 7 to escape to the rice field surface, which is the opposite side of the temporary ridge.Therefore, even if the desired amount of soil cannot be escaped to the rice field surface using only soil volume adjustment means such as the retaining plate 81 and guard 85 on the embankment body 7 side, the soil can be escaped through the opening 71 in the side forming section 46 of the attachment main body 41, so that proper temporary ridge formation work can be carried out and the problem of soil getting stuck between the outer surface (front surface) of the side forming section 46 and the inner surface (back surface) of the first soil adhesion prevention member 51 can also be prevented.

[0069] Furthermore, the attachment body 41 has a guard portion 73 that prevents soil that has escaped through the opening 71 formed in its side forming portion 46 from moving toward the rotating shaft 3, thereby appropriately preventing soil from adhering to the rotating shaft 3 and the mounting portion 61 attached thereto.As a result, there is no need to remove the soil, etc., and the burden on the worker can be reduced.

[0070] The attachment 1 is not limited to the above configuration, and may be, for example, one shown in FIGS.

[0071] In the attachment 1 shown in Figures 8 and 9, the side forming portion 46 of the attachment body 41 has a plurality of elongated members (frames) 91 positioned radially around the central axis of rotation X of the attachment body 41, and a plurality of annular members (pipes) 92a, 92b of different sizes that are connected and fixed to these plurality of elongated members 91 and positioned around the central axis of rotation X.

[0072] That is, the side forming portion 46 is made up of a plurality of longitudinal members 91 with a U-shaped cross section and a plurality of annular members 92a, 92b with a circular cross section so as to have a plurality of openings 71, and a plurality of soil relief openings 71 are also formed in the side forming portion 46. In addition, a guard plate 74 of a guard portion 73 that prevents soil from the soil relief openings 71 from flowing toward the rotating shaft 3 is fixed to the longitudinal members 91 by welding or the like.

[0073] 8 and 9 can also achieve the same effects as the above-described attachment 1. Note that, for example, a soil adhesion prevention member may be provided on the elongated member 91 of the side surface forming portion 46. Also, for example, a configuration may be adopted in which the soil adhesion prevention member 52 is not provided and the outer surface of the top surface forming portion 47 is exposed.

[0074] In addition, in each of the above-described embodiments, the attachment body preferably has a securing means for ensuring straightness, but may be configured without the securing means. Also, for example, the members constituting the securing means (the inner plate 56, the outer plate 57) may be provided with soil adhesion prevention members.

[0075] Furthermore, for example, the attachment body itself may be made of a material that does not easily attract soil, or at least the part of the attachment body that comes into contact with the ridge (ground contact surface) may be made of a material that does not easily attract soil.

[0076] In addition, the attachment that can be replaced (replaced) with the ridge forming body may be configured to consist of only the attachment body that forms temporary ridges while rotating based on force from the ridge side relative to the rotating part of the ridge coating machine.

[0077] Furthermore, in order to facilitate the attachment of the attachment body to the rotating part of the furrow coating machine, a restricting means (such as a detachable pin) may be provided to restrict the rotation of the inner boss 64 relative to the mounting part (boss) 61 during the attachment work.

[0078] Furthermore, for example, the opening size of the soil release opening in the attachment body may be adjustable, or an opening / closing member may be provided to open and close the opening.

[0079] Furthermore, the attachment body is not limited to a rotary type that forms temporary ridges while rotating following the rotation, but may be, for example, a sliding type or a vibrating type.

[0080] Although several embodiments and modifications of the present invention have been described, it is also possible to combine the embodiments and modifications as appropriate without departing from the gist of the present invention. [Explanation of symbols]

[0081] 1 Attachment 2 Ridge coating machine 3 Rotating shaft 10 Ridge forming body 41 Attachment body 46 Side forming part 47 Upper surface forming part 71 Opening 72 Plate-shaped members 73 Guard section 91 Longitudinal members 92a, 92b Annular members X rotation axis

Claims

1. An attachment that can be detachably attached to the rotating part of the ridge coating machine in place of the ridge forming body, An attachment body for forming temporary ridges is provided, The attachment body includes: An opening that allows the soil to escape to the opposite side of the temporary ridge, a side forming portion that forms a side surface of the temporary ridge; an upper surface forming part that forms an upper surface of the temporary ridge, the opening is formed in the side surface forming portion, The side surface forming portion has a truncated cone-shaped plate member in which the plurality of openings are formed. An attachment characterized by:

2. An attachment that can be detachably attached to the rotating part of the ridge coating machine in place of the ridge forming body, The attachment body rotates based on the force from the ridge side to form a temporary ridge, The attachment body has an opening that allows soil to escape to the side opposite the temporary ridge. An attachment characterized by:

3. The attachment body includes: a side forming portion that forms a side surface of the temporary ridge; an upper surface forming part that forms an upper surface of the temporary ridge, The opening is formed in the side surface forming portion.

3. The attachment according to claim 2, wherein the attachment is a stator.

4. The side surface forming portion has a truncated cone-shaped plate member in which the plurality of openings are formed.

4. The attachment according to claim 3, wherein the attachment is a stator.

5. The side surface forming portion is a plurality of elongated members positioned radially around the central axis of rotation of the attachment body; a plurality of annular members connected to the longitudinal member and positioned about the central axis of rotation; 4. The attachment according to claim 3, wherein the attachment is a stator.

6. The attachment body has a guard portion that prevents soil from flowing from the opening toward the rotating portion.

6. An attachment according to any one of claims 1 to 5.

Images