Attachment and ridge formation method

Abstract

To provide an attachment capable of reducing a load applied to a worker.SOLUTION: An attachment 1 is detachably attached to a rotary shaft 3 of a levee plastering machine instead of a levee formation body. The attachment 1 comprises an attachment main body 41 which forms a temporary levee without receiving rotary force from the rotary shaft 3 of the levee plastering machine. The attachment 1 comprises blocking means 65 for blocking transmission of the rotary force to the attachment main body 41 from the rotary shaft 3 of the levee plastering machine. The attachment main body 41 is attached to the rotary shaft 3 of the levee plastering machine through the blocking means 65.SELECTED DRAWING: Figure 3

Description

[Technical field]

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

[0002] 2. Description of the Related 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 designed to trim the top and sides of the enlarged ridges to adjust their height and width, as the ridges become wider and taller each time they are painted with a ridge painting machine.

[0004] The ridge trimmer is equipped with an upper surface trimming section which is driven to remove soil from the upper surface of the ridge, and a side surface trimming section (slope trimming section) which is driven to remove soil from the side surface (slope) of the ridge. The upper surface trimming section has a soil transport body which removes soil from the upper surface of the ridge while transporting the soil to the side surface of the ridge, and the side surface trimming section has a soil transport body which removes soil from the side surface of the ridge while transporting the soil to the lower rice field surface. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2012-60977 A Summary of the Invention [Problem to be solved by the invention]

[0006] However, the above-mentioned conventional ridge cutting machines are dedicated work machines for cutting ridges, which inevitably results in high costs, and therefore the purchase of such relatively expensive ridge cutting machines imposes a large burden on workers such as farmers.

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

[0008] The attachment described in claim 1 is an attachment that can be removably attached to the rotating part of a ridge application machine in place of a ridge forming body, and is equipped with an attachment body that forms temporary ridges without receiving rotational force from the rotating part.

[0009] The attachment according to claim 2 is the attachment according to claim 1, further comprising a cut-off means for cutting off the transmission of rotational force from the rotating part of the ridge coating machine to the attachment body.

[0010] The attachment according to claim 3 is the attachment according to claim 2, wherein the attachment body is attached to the rotating part of the ridge coating machine via a blocking means.

[0011] The attachment according to claim 4 is the attachment according to any one of claims 1 to 3, further comprising a soil adhesion prevention body that prevents soil from adhering to the attachment body.

[0012] The attachment according to claim 5 is the attachment according to any one of claims 1 to 4, wherein the attachment body has a securing means for securing straightness.

[0013] The attachment according to claim 6 is the attachment according to any one of claims 1 to 5, wherein the attachment body is capable of adjusting its position left and right relative to the rotating part of the ridge coating machine.

[0014] The ridge formation method described in claim 7 is a ridge formation method using an attachment described in any one of claims 1 to 6, and includes the steps of removing a ridge formation body from a rotating part of a ridge coating machine and then attaching the attachment to the rotating part, forming a temporary ridge using the ridge coating machine with the attachment attached, removing the attachment from the rotating part of the ridge coating machine and then attaching the ridge formation body to the rotating part, and forming a new ridge using the ridge coating machine with the ridge formation body attached. Effect of the Invention

[0015] According to the present invention, the burden on the worker can be reduced. [Brief description of the drawings]

[0016] [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. FIG. [Diagram 2] FIG. [Diagram 3] FIG. [Figure 4] FIG. 4 is a cross-sectional view of the attachment after changing its position. [Diagram 5] 13A to 13C are diagrams showing the procedure for adjusting the size of a ridge. [Figure 6] 4(a) to 4(c) are explanatory diagrams for explaining the above-mentioned work procedure. [Figure 7] 6(d) to (f) are explanatory diagrams continuing from FIG. [Figure 8] FIG. 11 is a cross-sectional view of an attachment according to another embodiment of the present invention. [Figure 9] FIG. 11 is a cross-sectional view of an attachment according to still another embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] An embodiment of the present invention will be described with reference to FIGS.

[0018] 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 former 10 for forming a new ridge (see FIGS. 6(a) to (c)).

[0019] The normal state of the ridge application machine 2 (the state shown in FIG. 6(a)) is when the ridge former 10 is attached to the rotary shaft 3. In this normal state, the ridge application machine 2 is connected to the rear of a traveling vehicle, a tractor (not shown), and performs ridge application work while moving forward (in the direction of travel) in a forward working state as the tractor travels forward. In addition, in corners of a field, the ridge application machine 2 is switched from the forward working state to a return working state, and then performs ridge application work while moving backward (in the direction of travel) in the return working state as the tractor travels backward.

[0020] The ridge painting work by this normal ridge painting machine 2 is a ridge repair work to repair the original ridges that have cracks and mole holes before water is drawn into the field (paddy field) to form strong new ridges that are less likely to collapse, but because the soil of the field (soil on the surface of the rice field) is added to the original ridge during the work, the ridges become wider in width and taller as the ridge painting work is repeated every year, resulting in the ridges becoming larger than necessary.The attachment 1 is used to return the enlarged ridges to the desired size.

[0021] In its normal state, the ridge painting machine 2 comprises a body 6 that is detachably connected to a three-point link at the rear of the tractor, a soil filling 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 onto the original ridge, a ridge forming body (disk section) 10 that rotates in the predetermined direction to compact the soil filled by the soil filling 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 the predetermined direction.

[0022] The embankment body 7, the upper surface scraper 8 and the 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.

[0023] In addition, when the ridge forming body 10 is attached to the rotating shaft 3, it is driven to rotate in a predetermined direction together with the rotating shaft 3 based on power from the input shaft side (not shown). However, since its peripheral speed is faster than the running speed of the tractor, it slips and rotates relative to the ridge.

[0024] Even when the attachment 1 is attached to the rotating shaft 3, the rotational force of the rotating 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, the 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.

[0025] 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 a PTO shaft of the tractor is connected to the input shaft via a joint.

[0026] 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.

[0027] A movable machine frame 17 is connected to the machine frame 16 via a connecting means 18, and a working section 20 is provided on the movable machine frame 17. The movable machine frame 17 moves by the extension and retraction of cylinders 21, 22, which are telescopic driving means, and the working section 20 changes position, so that the ridge coating machine 2 can be selectively switched to a desired state (forward operation state, storage state, and return operation state). Furthermore, the movable machine frame 17 is provided with a gauge wheel (direction wheel) 23 that runs in contact with the rice field surface.

[0028] The embankment body 7 has a front-rear rotating shaft 26 that is driven to rotate based on the power from the input shaft side, and multiple tilling tines 27 for embankment are attached to this rotating shaft 26. Like the embankment body 7, the upper surface scraping body 8 also has a front-rear rotating shaft 28 that is driven to rotate based on the power from the input shaft side, and multiple tilling tines 29 for upper surface scraping are attached to this rotating shaft 28.

[0029] The ridge forming body 10 has a truncated cone-shaped (including approximately truncated cone-shaped; same below) ridge side forming part 31 which compacts the mound made by the embankment body 7 to form the sloping side (ridge side) of the new ridge, and a cylindrical (including approximately cylindrical; same below) ridge top surface forming part 32 which is provided at the narrower end of this ridge side forming part 31 and compacts the mound 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 ridge top surface forming part 32 on the side of ridge side forming part 31 is truncated cone-shaped, and this truncated cone-shaped end forms the sloping shoulder surface (ridge shoulder surface) of the new ridge.

[0030] The ridge side forming section 31 has a number of ridge side forming plates 33 which 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 a linear step portion 34 is formed between the two ridge side forming plates 33 adjacent to each other in the direction of rotation. In addition, a number of spiral step portions 35 are formed on the outer circumferential surface of the ridge top surface forming section 32. The action of these step portions 34, 35 strongly compacts the embankment, forming a strong new ridge that is not likely to collapse. The ridge side forming section 31 has a cylindrical attachment portion (not shown) on the rotation center side, and this attachment portion is directly attached to the outer circumferential side of the rotating shaft 3 in a detachable manner.

[0031] As is clear from Figures 2 and 3, the attachment 1 is formed, for example, to be approximately the same shape and size as 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.

[0032] Here, the attachment 1 comprises a non-driven attachment body 41 which rotates in a predetermined direction about a horizontal left-right rotation center axis X based on force from the ridge side relative to the rotating shaft 3, 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 (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.

[0033] Furthermore, the temporary ridges formed by the non-driven attachment body 41 differ from the strong new ridges formed by the driven ridge-forming body 10 in that the soil on the surface is soft and more likely to crumble than the new ridges.

[0034] The attachment body (driven rotor) 41 has a truncated cone-shaped side forming portion 46 which loosely compacts the soil bank made by the embankment body 7 to form the inclined side surface of the temporary ridge, and a cylindrical upper surface forming portion 47 which is provided at the narrowed end of this side surface forming portion 46 and which loosely compacts the soil bank made by the embankment body 7 to form the horizontal upper surface of the temporary ridge.

[0035] The truncated conical outer peripheral 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 peripheral 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. The first soil adhesion prevention members 51 and the second soil adhesion prevention members 52 constitute the soil adhesion prevention body 42.

[0036] 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 upper surface forming portion 47) by the attachment means 43. Each soil adhesion prevention member 51, 52 is arranged so that adjacent ones in the rotational direction partially overlap each other, but there may be no overlapping portion.

[0037] In the illustrated example, the entire outer circumferential surface of the side surface forming portion 46 and the entire outer circumferential surface of the top surface forming portion 47 are covered with the soil adhesion prevention body 42, but for example, only a part of the outer circumferential surface may be covered with a soil adhesion prevention body such as an elastic member, or, for example, the soil adhesion prevention body 42 may not be provided and the outer surface of the attachment body 41 may be exposed. Furthermore, in the illustrated example, the soil adhesion prevention member is attached to the attachment body at the front end in the rotation direction, but for example, the soil adhesion prevention member may be attached to the attachment body at the front end in the rotation direction and at an intermediate part in the rotation direction.

[0038] In addition, the attachment body 41 has a securing means 55 for ensuring straight-line movement of the ridge coating machine 2 in the direction of travel based on the travel 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).

[0039] 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 penetrate into 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 penetrate into the upper surface of the temporary ridge. In other words, the securing means 55 is made up of the two inner plate 56 and outer plate 57 which are different in size.

[0040] 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 paddy field surface. A circular opening 58 is formed in this inner plate 56.

[0041] 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. The mounting holes 54 are for mounting, 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 extension soil adhesion prevention member (not shown) that prevents soil from adhering to the insertion plate portion 56a, and the like.

[0042] The outer plate 57 is provided at the outer end portion, which is the end portion opposite the side surface forming portion 46 side of the upper surface forming portion 47, and the outer peripheral end portion of this outer plate 57 protrudes radially outward from the outer end portion of the upper surface forming portion 47. In other words, the outer plate 57 has, at its outer peripheral end portion, an annular insertion plate portion 57a ​​that is inserted into the upper surface of the temporary ridge.

[0043] A circular opening 59 is formed in the outer plate 57, and the opening 59 is closed in an openable and closable manner by a lid 60. The lid 60 is detachably attached to the outer plate 57 by the attachment means 50.

[0044] 3, the attachment body 41 has a cylindrical mounting portion (boss) 61 provided on 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 the inner boss 64 form a cut-off means 65 that cuts off the transmission of power (rotational force) from the rotating shaft 3 to the attachment body 41.

[0045] That is, the attachment body 41 is rotatably attached to the rotating shaft 3 via a power transmission interrupting 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.

[0046] Unlike an attachment part (not shown) on the rotation center side of the ridge forming body 10, no power is 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.

[0047] The mounting means 62 is composed of, for example, a bolt 66 that can be screwed into the female threaded portion 3a of the rotating shaft 3, a cylindrical collar 67, and a washer 68 through which the shaft portion 66a of the bolt 66 is inserted.

[0048] 4, the left-right position of the attachment body 41 with respect to the rotating shaft 3 can be changed by changing the position of a collar 67, which is a position adjustment member. In other words, the attachment body 41 is capable of adjusting its left-right position with respect to the rotating shaft 3 of the ridge coating machine 2.

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

[0050] First, referring to Figure 5, we will explain the work procedure (ridge formation method for returning a ridge 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, for example, to the desired size.

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

[0052] Next, using the ridge-making machine 2 with the attachment 1 attached to the rotary shaft 3, the embankment made of the embankment body 7 is loosely compacted with the attachment 1 to form a temporary ridge (step 2).

[0053] Thereafter, the attachment 1 is removed from the rotating shaft 3 of the ridge coating machine 2, and then the ridge forming body 10 is attached to the rotating 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 formed by the embankment body 7 is compacted with the ridge-forming body 10 to form a new ridge (step 4). As a result, the height and width of the ridge that had become large due to repeated ridge-plastering work are reduced, 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 Fig. 6(a) and (b). Next, the worker attaches the attachment 1 to the rotating shaft 3 of the ridge coating machine 2 as shown in Fig. 6(c).

[0056] Next, as shown in Figures 7(d) and (e), the ridge painter 2 (ridge painter 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 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 following the force from the ridge side, whereby the embankment made by the embankment body 7 is loosely compacted and a temporary ridge with soft soil on the surface is formed.

[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 there is no need to drive the rotating shaft 3 of the ridge coating machine 2 at this time, for example, if there is a configuration with a function for stopping the rotation of the rotating shaft 3, the rotating shaft 3 may be stopped when the temporary ridge is formed.

[0059] In addition, during the formation of the temporary ridges (temporary ridge formation process), the height of the ridge coating machine 2 is stabilized by the attachment 1 and the gauge wheel 23, which are respectively grounded, so the cutting depth (cultivation depth) of 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 (cultivation depth) of 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 packed by the attachment 1 can be adjusted (see FIG. 1).

[0061] Specifically, for example, by changing the opening degree of the retaining plate 81 located at the rear of the embankment 7, the amount of soil 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 outer side of the embankment 7, the amount of soil released from the attachment 1 side to the opposite paddy field surface (outer side) 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 piled up on the top surface of the original 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 released from the embankment 7 side to the paddy field surface can be adjusted.

[0062] Thereafter, 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 normal condition, and the ridge forming body 10 forms a strong new ridge that is reduced to the desired height and width.

[0063] At this time, the temporary ridge is cultivated by the embankment 7 and the top surface scraping body 8, but because the soil on the surface of this temporary ridge is soft, the embankment 7 and the top surface scraping body 8 penetrate deeper than usual and scrape away more soil. 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) may be performed immediately after the work shown in Figure 7(d) (the work of forming a temporary ridge), or may be performed after a prescribed period of time has passed. For example, if it is performed after a prescribed period of time has passed, part of the temporary ridge may collapse due to rainwater or the like, and soil may be supplied to the surface of the rice field. 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, a farmer or other worker can adjust a large ridge to the desired size by using a relatively inexpensive attachment 1 which has a non-driven attachment body 41 that forms a temporary ridge by rotating based on force from the ridge side, with the rotating shaft 3 as the center of rotation. This eliminates the need to purchase a relatively expensive ridge trimmer, thereby reducing the financial and other burdens placed on the worker.

[0066] In addition, 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, and therefore, the labor of removing soil, etc. is not required, and the burden on the worker can be reduced.

[0067] Furthermore, since 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, a temporary ridge having a shape similar to that of a normal ridge is formed.As a result, the working position is more stable when forming a new ridge, and the desired amount of ridge cutting can be set, making the work easier, which also reduces the burden on the worker.

[0068] The attachment 1 may be, for example, a tire or a gauge wheel as shown in Fig. 8. In the attachment 1 shown in Fig. 8, the attachment body 41 has a cylindrical side forming part 46 that loosely compacts the embankment made by the embankment body 7 to form one vertical side of the temporary ridge.

[0069] The side surface forming portion 46 has a cylindrical tubular portion 46a and a disk-shaped plate portion 46b provided at the right end of the cylindrical portion 46a. A first soil adhesion prevention member 71 made of rubber, resin, or the like is provided on the outer peripheral surface of the cylindrical portion 46a so as to cover the entire outer peripheral surface. Although not shown, the first soil adhesion prevention member 71 may have multiple protrusions like studded tires.

[0070] Similarly, a second soil adhesion prevention member 72 made of rubber, resin, or the like is provided on the outer peripheral surface of the upper surface forming portion 47 so as to cover the entire outer peripheral surface, and this second soil adhesion prevention member 72 may have a plurality of protrusions. The first soil adhesion prevention member 71 and the second soil adhesion prevention member 72 constitute the soil adhesion prevention body 42.

[0071] 8 can achieve the same effects as the above-mentioned attachment 1. For example, a soil adhesion prevention member may be provided on the outer surface of the plate-shaped portion 46b of the side surface forming portion 46. Also, for example, a configuration may be adopted in which the soil adhesion prevention members 71, 72 are not provided and the outer surface of the attachment body 41 is exposed.

[0072] The attachment 1 may also be, for example, as shown in Fig. 9, in which the side of the temporary ridge is formed in multiple steps. In the attachment 1 shown in Fig. 9, the attachment body 41 has a side forming part 46 that loosely compacts the embankment made of the embankment body 7 to form the side of the temporary ridge in multiple steps.

[0073] The side surface forming portion 46 has a cylindrical first cylindrical portion 46a, a disk-shaped first plate-shaped portion 46b provided at the right end of the first cylindrical portion 46a, a cylindrical second cylindrical portion 46c provided at the inner circumferential end of the first plate-shaped portion 46b, and a disk-shaped second plate-shaped portion 46d provided at the right end of the second cylindrical portion 46c.

[0074] The attachment 1 shown in Fig. 9 can also achieve the same effects as the above-mentioned attachment 1. Although the attachment 1 shown in Fig. 9 does not include a soil adhesion prevention body 42, for example, a soil adhesion prevention member may be provided on the outer peripheral surfaces of the cylindrical portions 46a, 46c and the outer surfaces of the plate-like portions 46b, 46d of the side surface forming portion 46, or a soil adhesion prevention member may be provided on the outer peripheral surface of the upper surface forming portion 47. The number of stages of the side surface forming portion 46 may be three, or may be four or more.

[0075] In any embodiment, the attachment body preferably has a securing means for ensuring straightness, but may have a configuration 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 a soil adhesion prevention member.

[0076] Furthermore, for example, the attachment body itself may be made of a material to which soil does not easily adhere, or at least the portion of the attachment body that comes into contact with the ridge (the ground contact surface) may be made of a material to which soil does not easily adhere.

[0077] In addition, the attachment that is replaceable (replaceable) with the ridge forming body may be configured to consist only of 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.

[0078] Furthermore, in order to facilitate the attachment of the attachment body to the rotating part of the furrow coating machine, a regulating means (e.g., a removable pin, etc.) may be provided to regulate the rotation of the inner boss 64 relative to the mounting part (boss) 61 during the attachment work.

[0079] Although several embodiments and modifications of the present invention have been described, it is possible to combine the embodiments and modifications as appropriate without departing from the gist of the present invention. [Explanation of symbols]

[0080] 1 Attachment 2 Ridge painting machine 3 Rotating shaft 10 Ridge forming body 41 Attachment body 42 Soil adhesion prevention body 46 Side forming part 47 Upper surface forming part 55 Measures of Security 56 First insert, inner plate 57 Second insert, outer plate

Claims

1. An attachment that can be detachably attached to a rotating part of a ridge coating machine in place of a ridge forming body, The attachment body forms a temporary ridge without receiving a rotational force from the rotating part. An attachment characterized by:

2. Equipped with a cut-off means for cutting off the transmission of rotational force from the rotating part of the ridge coating machine to the attachment body.

2. The attachment according to claim 1 .

3. The attachment body is attached to the rotating part of the ridge coating machine via a blocking means.

3. The attachment according to claim 2.

4. Equipped with a soil adhesion prevention body that prevents soil from adhering to the attachment body 4. An attachment according to claim 1, wherein the attachment is a flexible member.

5. The attachment body has a securing means for ensuring straightness.

5. An attachment according to any one of claims 1 to 4.

6. The attachment body can be adjusted left and right relative to the rotating part of the ridge coating machine.

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

7. A ridge forming method using the attachment according to any one of claims 1 to 6, comprising the steps of: A step of removing the ridge forming body from a rotating part of the ridge coating machine and then attaching the attachment to the rotating part; A step of forming a temporary ridge using the ridge coating machine with the attachment attached; A step of removing the attachment from the rotating part of the ridge coating machine and then attaching the ridge forming body to the rotating part; forming a new ridge using the ridge coating machine with the ridge forming body attached; A ridge forming method comprising the steps of:

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