Ridging machine, ridge forming body, and ridging operation method

Abstract

To provide a ridge coating machine that can improve finishing accuracy of a ridge.SOLUTION: A ridge coating machine 2 comprises a ridge coating machine body 5, a ridge forming driving rotor 10 attachable / detachable to / from a rotating shaft 3 of the ridge coating machine body 5, and a ridge forming driven rotor 1 attachable / detachable to / from the rotating shaft 3. When the amount of water in ridge forming soil is small, ridge coating work is performed by attaching the ridge forming driving rotor 10 to the rotating shaft 3. When the amount of water in the ridge forming soil is large, the ridge coating work is performed by attaching the ridge forming driven rotor 1 to the rotating shaft 3.SELECTED DRAWING: Figure 5

Description

Technical Field

[0001] The present invention relates to a ridging machine, a ridging body, and a ridging work method capable of improving the finishing accuracy of ridges.

Background Art

[0002] Conventionally, for example, a ridging machine described in Patent Document 1 below is known.

[0003] This conventional ridging machine includes a mounting portion mounted on a link mechanism of a traveling machine body such as a tractor, a ridging body that levels ridges, a pretreatment portion that scoops up soil supplied to the ridging body, and a top field treatment portion that treats the top field of the ridge.

[0004] The ridging body (ridging formation body) is configured such that rotational power is transmitted through a power transmission mechanism in a transmission support case, and performs a ridging operation (ridging formation operation) while driving and rotating in a predetermined direction.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in the above-described conventional ridging machine, for example, when the moisture content of the soil for ridge formation is high in a wet paddy field or the like, there is a problem that the finishing accuracy of the ridge deteriorates.

[0007] The present invention has been made in view of such points, and an object thereof is to provide a ridging machine, a ridging body, and a ridging work method capable of improving the finishing accuracy of ridges.

Means for Solving the Problems

[0008] The ridging machine according to the present invention includes a ridging machine body and a plurality of ridging bodies that are detachable from the ridging machine body, and a ridging body selected according to the water content of the ridging soil is attached to the ridging machine body from among the plurality of ridging bodies.

[0009] Further, the ridging machine according to the present invention includes a ridging machine body having an embankment portion for cultivating ridging soil and a mounting portion, a ridging driving rotating body that is detachable from the mounting portion and that is driven to rotate based on a force from the mounting portion side in a state of being attached to the mounting portion, and a ridging driven rotating body that is detachable from the mounting portion and that is driven to rotate passively based on a force from the ridgeline side in a state of being attached to the mounting portion. When the water content of the ridging soil is low, the ridging driving rotating body is attached to the mounting portion, and while the attached ridging driving rotating body is driven to rotate based on the force from the mounting portion side, the embankment with low water content is compacted to form a ridgeline. When the water content of the ridging soil is high, the ridging driven rotating body is attached to the mounting portion, and while the attached ridging driven rotating body is driven to rotate passively based on the force from the ridgeline side, the embankment with high water content is compacted to form a ridgeline.

[0010] Further, the ridging body according to the present invention is a ridging body that is detachably attached to a mounting portion of a ridging machine body, and includes a rotating body main body that is driven to rotate passively based on a force from the ridgeline side, and an anti-soil-adhesion body that prevents soil from adhering to the rotating body main body.

[0011] Further, the ridging machine according to the present invention includes a ridging machine body having an embankment portion for cultivating ridging soil with a high water content and a mounting portion, and a ridging body that is attached to the mounting portion and that compacts the embankment with a high water content to form a ridgeline while being driven to rotate passively based on a force from the ridgeline side.

[0012] Further, the ridging work method according to the present invention is to perform ridging work using one ridging body when the water content of the ridging soil is low, and to perform ridging work using another ridging body different from the one ridging body when the water content of the ridging soil is high.

[0013] Further, in the ridging work method according to the present invention, when the water content of the soil for ridging is low, the ridging work is performed while driving and rotating the ridging driving rotating body, and when the water content of the soil for ridging is high, the ridging work is performed while driving and rotating the ridging driven rotating body.

Effect of the Invention

[0014] According to the present invention, it is possible to improve the finishing accuracy of the ridge.

Brief Description of the Drawings

[0015]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Mode for Carrying Out the Invention

[0016] The first embodiment of the present invention will be described with reference to FIGS. 1 to 5.

[0017] Reference numeral 1 in the figure is a ridging follower rotating body (attachment for ridging), which is a ridging body. This ridging follower rotating body 1 is detachably attached to a rotating shaft (a shaft portion capable of driving rotation), which is a rotating portion as an attachment portion of the ridging machine body 5 of the ridging machine 2, and is used under conditions where the moisture content in the soil is higher than normal.

[0018] That is, when the moisture content of the ridging soil to be tilled by the soil-retaining portion (tilling portion) 7 of the ridging machine body 5 is low (normal case), the ridging driving rotating body 10, which is a ridging body, is attached to the rotating shaft 3. While the attached ridging driving rotating body 10 rotates driven by the force from the rotating shaft 3 side, it compacts the soil with a low moisture content (soil retained by the soil-retaining body 7) to form a ridge (new ridge). On the other hand, when the moisture content of the ridging soil is high, instead of the ridging driving rotating body 10, the ridging follower rotating body 1 is attached to the rotating shaft 3. While the attached ridging follower rotating body 1 rotates driven by the force from the ridge side (frictional force with the grounding portion), it compacts the soil with a high moisture content (soil retained by the soil-retaining body 7) to form a ridge (new ridge).

[0019] In short, when the moisture content of the ridging soil is low, a conventional driving type ridging driving rotating body (one ridging body) 10 capable of driving rotation is attached to the rotating shaft 3 to perform the ridging operation. When the moisture content of the ridging soil is high, a non-driving type ridging follower rotating body (another ridging body with at least a different rotation method from the one ridging body) 1 capable of driven rotation is attached to the rotating shaft 3 to perform the ridging operation.

[0020] The first state shown in Fig. 5(a) is the state where the ridging driving rotating body 10 is attached to the rotating shaft 3, and the second state shown in Fig. 5(c) and Fig. 1 is the state where the ridging follower rotating body 1 is attached to the rotating shaft 3.

[0021] In either the first state or the second state, the ridging machine 2 is connected to the rear part of a tractor (not shown), which is a traveling vehicle, and performs ridging work while moving forward (in the traveling direction) in the forward working state by the forward traveling of the tractor. Also, at the corner of the field, after the ridging machine 2 is switched from the forward working state to the return working state, it performs ridging work while moving backward (in the traveling direction) in the return working state by the backward traveling of the tractor.

[0022] Note that Fig. 5(b) shows the ridging machine body 5 in a state where the two ridging members 1, 10 are not attached to the rotating shaft 3. This ridging machine body 5 has, in addition to the rotating shaft 3, a machine body 6, a soil accumulating body 7, an upper surface planing body 8, etc., which will be described later.

[0023] Here, the ridging machine 2 in the first state includes a machine body 6 that is detachably connected to the three-point link portion at the rear of the tractor, a soil accumulating body 7 that drives and rotates in a predetermined direction to cultivate the soil for ridging, that is, for example, the soil on the field surface (field) and the original ridge, and heaps up the soil (cultivated soil) on the original ridge, and a ridging driving rotating body 10 that drives and rotates in a predetermined direction to compact the soil heap (soil heap with low moisture content) by the soil accumulating body 7 to form a new ridge, and an upper surface planing body (upper surface planing portion) 8 that drives and rotates in a predetermined direction to plane the upper surface of the original ridge.

[0024] These soil accumulating body 7, upper surface planing body 8, and ridging driving rotating body 10 are respectively covered by cover bodies 11, 12, 13. Note that the cover body 13 covers a part of the ridging driving rotating body 10 in this first state, but in the second state when the moisture content of the soil for ridging (soil on the field surface and the original ridge) is high, a part of the ridging driven rotating body 1 is covered by the cover body 13.

[0025] Also, the ridging driving rotating body 10 is attached to the rotating shaft 3 of the ridging machine body 5 and drives and rotates in a predetermined direction together with the rotating shaft 3 based on the power (rotational force) from the input shaft side (not shown). Since its peripheral speed is faster than the traveling speed of the tractor (moving speed in the traveling direction), it rotates with slip with respect to the ridge.

[0026] Note that even when the ridge-forming driven rotator 1 is attached to the rotating shaft 3 of the ridge painting machine body 5, the rotational force (power) of the rotating shaft 3 is not transmitted to the rotator main body (main body portion) 41. Therefore, this rotator main body 41 is driven to rotate in a predetermined direction based on the force from the grounded ridge side. That is, this non-driven rotator main body (ridge-forming driven rotator) 41 moves in the traveling direction along the ridge while being driven to rotate according to the traveling speed of the tractor as the tractor travels (moves) in a state of being in contact with the ridge (including the state of being in contact with the ridge through the soil adhesion prevention body) without obtaining power from the rotating shaft 3 side of the ridge painting machine 2.

[0027] The machine body 6 has a machine frame 16 that is detachably connected to a three-point link portion (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.

[0028] Then, based on the power input by the input shaft (the driving force from the tractor side), the soil holding body 7, the upper surface scraping body 8, and the ridge-forming driving rotator (ridge-forming body) 10 are each driven to rotate to perform operations. The working portion 20 is constituted by these soil holding body 7, upper surface scraping body 8, and ridge-forming driving rotator 10. However, when the ridge-forming driven rotator 1 is in use, the working portion 20 is constituted by the soil holding body 7, the upper surface scraping body 8, and the ridge-forming driven rotator 1.

[0029] Further, a movable machine frame 17 is connected to the machine frame 16 via a connecting means 18, and the working portion 20 is provided on this movable machine frame 17. Then, by the expansion and contraction of the cylinders 21 and 22 which are expansion and contraction driving means, the movable machine frame 17 moves and the working portion 20 changes its position, so that the ridge painting machine 2 is selectively switched to a desired state (forward working state, storage state, and return working state). Furthermore, a gauge wheel (steering wheel) 23 that travels in contact with the field surface is provided on the movable machine frame 17. Also, a rotating shaft 3 which is an attachment portion that can be driven to rotate by the power from the input shaft side is rotatably provided on the movable machine frame 17.

[0030] The soil filling body 7 has a longitudinal rotation axis 26 that rotates drivenly based on the power from the input shaft side, and a plurality of tilling claws 27 for soil filling are attached to this rotation axis 26. Similarly to the soil filling body 7, the upper surface scraping body 8 also has a longitudinal rotation axis 28 that rotates drivenly based on the power from the input shaft side, and a plurality of tilling claws 29 for upper surface scraping are attached to this rotation axis 28.

[0031] The ridge forming driven rotating body 10 performs ridge forming work on soil fill (mud) with a small water content. It has a frustum - shaped (including a substantially frustum - shaped, the same applies hereinafter) ridge side surface forming portion 31 that compacts the soil filled by the soil filling body 7 to form the inclined side surface (ridge side surface) of the new ridge, and a cylindrical (including a substantially cylindrical shape, the same applies hereinafter) ridge upper surface forming portion 32 that is provided at the end on the reduced - diameter side of this ridge side surface forming portion 31 and compacts the soil filled by the soil filling body 7 to form the horizontal upper surface (ridge upper surface) of the new ridge. Note that the end of the ridge upper surface forming portion 32 on the side of the ridge side surface forming portion 31 is frustum - shaped, and the frustum - shaped end forms the inclined shoulder surface (ridge shoulder surface) of the new ridge.

[0032] The ridge side surface forming portion 31 has a plurality of ridge side surface forming plates 33 that compact the soil so as to push it in at the rear side in the rotation direction to form the ridge side surface. And the plurality of ridge side surface forming plates 33 are arranged in the rotation direction, and a linear step portion 34 is formed between two adjacent ridge side surface forming plates 33 in the rotation direction. Also, a plurality of spiral step portions 35 are formed on the outer peripheral surface of the ridge upper surface forming portion 32. Due to the action of these step portions 34 and 35, the soil is strongly compacted, and a strong and non - collapsible new ridge is formed. Note that the ridge side surface forming portion 31 has a cylindrical attachment portion (not shown) on the rotation center side, and this attachment portion is detachably and directly attached to the outer peripheral side of the rotation axis 3.

[0033] On the other hand, the ridge forming driven rotating body 1 performs ridge forming work on soil fill (mud) with a large water content. As shown in FIG. 2, FIG. 3, etc., for example, it is formed in substantially the same shape and substantially the same size as the ridge forming driven rotating body 10, and is detachably attached to the rotation axis 3 and used in place of the ridge forming driven rotating body 10 during work in wet fields with a large amount of water.

[0034] Here, the ridge-forming driven rotating body 1 is a non-driven rotating body main body 41 that forms a new ridge by compacting the soil (soil with a large water content) by the soil containing body 7 while being driven to rotate in a predetermined direction around a horizontal left-right direction rotation center axis X based on the force from the ridge side with respect to the rotation axis 3 of the ridge coating machine main body 5 regardless of the driving rotation of the rotation axis 3 based on the power from the input shaft side. The non-driven rotating body main body 41 is provided with an anti-soil adhesion body 42 that is detachably attached to the outer surface (ground contact surface) of the rotating body main body 41 by attachment means 43 to prevent soil adhesion to the outer surface of the rotating body main body 41.

[0035] In addition, the new ridge with a large water content formed by the ridge-forming driven rotating body 1 that can be driven to rotate has a better finish than the ridge formed by the ridge-forming driving rotating body 10 that can be driven to rotate.

[0036] The rotating body main body (driven rotating part) 41 has a frustum-shaped side surface forming part 46 that forms the inclined side surface (ridge side surface) of the new ridge by compacting the soil by the soil containing body 7, and a cylindrical upper surface forming part 47 that is provided at the end of the reduced diameter side of the side surface forming part 46 and forms the horizontal upper surface (ridge upper surface) of the new ridge by compacting the soil by the soil containing body 7. The side surface forming part 46 is composed of a plate-shaped member 72 having a frustum shape that tapers toward the upper surface forming part 47 side and having a predetermined thickness dimension.

[0037] The truncated conical outer peripheral surface of the side surface forming part 46 is covered by a plurality of plate-shaped first anti-soil adhesion members 51 arranged in the rotation direction, and the cylindrical outer peripheral surface of the upper surface forming part 47 is covered by a plurality of plate-shaped second anti-soil adhesion members 52 arranged in the rotation direction. The first anti-soil adhesion members 51 and the second anti-soil adhesion members 52 constitute the anti-soil adhesion body 42.

[0038] Each soil adhesion prevention member (for example, a soil adhesion prevention plate made of an elastic body) 51, 52 is made of a material to which soil hardly adheres, and is, for example, an elastically deformable member such as a rubber plate, a resin plate, or a metal plate. Each soil adhesion prevention member 51, 52 has a front end portion in the rotation direction detachably attached to the outer surface of the rotating body main 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 attachment means 43. Each soil adhesion prevention member 51, 52 is arranged such that those adjacent to each other in the rotation direction partially overlap, but the overlapping portion may not be provided.

[0039] In the illustrated example, the entire outer peripheral surface of the side surface forming portion 46 and the entire outer peripheral surface of the upper surface forming portion 47 are covered with the soil adhesion prevention body 42. However, for example, a configuration in which only a part of the outer peripheral surface is covered with a soil adhesion prevention body such as an elastic member may be employed. Further, for example, a configuration in which the outer surface of the rotating body main body 41 is exposed without providing the soil adhesion prevention body 42 may be employed. Furthermore, in the illustrated example, the soil adhesion prevention member has a configuration in which the front end portion in the rotation direction is attached to the rotating body main body. However, for example, a configuration in which the soil adhesion prevention member is attached to the rotating body main body at the front end portion in the rotation direction and the intermediate portion in the rotation direction may be employed.

[0040] Further, the rotating body main body 41 has a securing means 55 for ensuring straightness of movement in the traveling direction of the ridging machine 2 in the second state in which the ridging driven rotating body 1 is attached to the rotating shaft 3 during work using the ridging machine 2 in the second state.

[0041] The securing means 55 includes an inner plate 56 which is an annular and plate-shaped first insertion portion located at the inner end portion (left end portion) which is one end portion in the left-right direction of the rotating body main body 41 and whose outer peripheral end portion is inserted so as to pierce into the field surface, and an outer plate 57 which is an annular and plate-shaped second insertion portion located at the outer end portion (right end portion) which is the other end portion in the left-right direction of the rotating body main body 41 and whose outer peripheral end portion is inserted so as to pierce into the upper surface of the ridge. That is, the securing means 55 is constituted by two inner plates 56 and outer plates 57 having different sizes from each other.

[0042] The inner plate 56 is provided at the inner end of the side surface forming portion 46, and the outer peripheral end of this inner plate 56 protrudes radially outward from the inner end of the side surface forming portion 46. That is, the inner plate 56 has an annular insertion plate portion 56a at its outer peripheral end that is inserted into the field surface. A circular opening 58 is formed in this inner plate 56.

[0043] Note that a plurality of mounting holes 54 are formed in the insertion plate portion 56a of the inner plate 56 at intervals in the circumferential direction. These mounting holes 54 are for attaching to the inner plate 56 a diameter-expanding member (not shown) that is inserted deeper into the field surface than the insertion plate portion 56a, an extended soil adhesion prevention member (not shown) that prevents soil adhesion to the insertion plate portion 56a, and the like.

[0044] The outer plate 57 is provided at the outer end, which is the end on the side opposite to the side surface forming portion 46 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. That is, 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 ridge.

[0045] A circular opening 59 is formed in this outer plate 57, and this opening 59 is closable in an openable and closable manner by a lid 60. This lid 60 is detachably attached to the outer plate 57 by attachment means 50.

[0046] Furthermore, as shown in FIG. 3, the rotating body main body 41 has a cylindrical attachment portion (boss) 61 provided at the outer end (right end) of the side surface forming portion 46. This attachment portion 61 is detachably attached to the outer peripheral side of the rotating shaft 3 by attachment means 62 via a bearing (bearing member) 63 and an inner boss (cylindrical member) 64. Note that the bearing 63 and the inner boss 64 constitute a blocking means 65 for blocking the transmission of power (rotational force) from the rotating shaft 3 to the rotating body main body 41.

[0047] That is, the rotating body main body 41 is rotatably attached to the rotating shaft 3 via a blocking means (bearing means) 65 for power transmission interruption. In short, the attachment portion 61 of the rotating body main body 41 is detachable and rotatable with respect to the rotating shaft 3.

[0048] And, different from the attachment portion (not shown) on the rotation center side of the ridge formation driving rotating body 10, power from the rotating shaft 3 is not transmitted to the attachment portion 61 on the rotation center side of the rotating body main body 41. For this reason, unlike the driven type ridge formation driven rotating body 10 which is a driving type, the non-driven type ridge formation driven rotating body 1 does not rotate driven by the power from the rotating shaft 3, but rotates passively based on the force (frictional force) received from the grounded ridge side.

[0049] Also, the attachment means 62 is composed of, for example, a bolt 66 that can be screwed into the female screw 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. And, as shown in FIG. 4, by changing the position of the collar 67 which is a position adjusting member, the left-right position of the rotating body main body 41 with respect to the rotating shaft 3 can be changed. In other words, the ridge formation driven rotating body 1 can be adjusted in the left-right position with respect to the rotating shaft 3 of the ridge coating machine main body 5 by changing the attachment position of the collar 67.

[0050] Next, the operation etc. of the above-described ridge coating machine 2 will be explained.

[0051] For example, in a normal case where the moisture content of the soil for ridge formation is less than the reference amount, the operator attaches the ridge formation driving rotating body (normal disk) 10 to the rotating shaft 3 of the ridge coating machine main body 5 as shown in FIG. 5(a).

[0052] Then, in this first state, when the ridging machine 2 moves in the traveling direction due to the traveling of the tractor, the upper surface scraping body 8 scrapes the upper surface of the original ridge with a small water content, and the soil accumulating body 7 tills the soil for ridge formation (soil on the field surface and the original ridge) with a small water content and heaps up the tilled soil on the original ridge. And, behind it, the ridge formation driving rotating body 10 drives and rotates (slip rotates) based on the force from the side of the rotating shaft 3 while compacting the soil heap with a small water content heaped up by the soil accumulating body 7 (ordinary soil heap supplied by the soil accumulating body 7) to form a new ridge.

[0053] In this way, the ridging operation in dry paddy fields is carried out by the ridging machine 2 in the first state shown in Fig. 5(a).

[0054] However, for example, when the water content of the soil for ridge formation is high and exceeds the reference amount in wet paddy fields, the operator removes the ridge formation driving rotating body 10 from the rotating shaft 3 as shown in Fig. 5(b), and then, as shown in Fig. 5(c), instead, attaches the ridge formation driven rotating body (disk for use when the water content is high in the case of soil with a high water content) 1 to the rotating shaft 3 of the ridging machine body 5.

[0055] Then, in this second state, when the ridging machine 2 moves in the traveling direction due to the traveling of the tractor, the upper surface scraping body 8 scrapes the upper surface of the original ridge with a high water content, and the soil accumulating body 7 tills the soil for ridge formation (soil on the field surface and the original ridge) with a high water content and heaps up the tilled soil on the original ridge. And, behind it, the ridge formation driven rotating body 1 drives and rotates passively (passive rotation corresponding to the working speed) based on the force from the side of the ridge where its lower side is in contact with the ground while compacting the soil heap with a high water content heaped up by the soil accumulating body 7 (soil heap with a high water content supplied by the soil accumulating body 7) without scraping it out to form a new ridge.

[0056] At this time, the rotation of the ridge formation driven rotating body 1 is not a forced driving rotation based on the force received from the rotating shaft 3, but a passive rotation based on the force received from the side of the ridge. Therefore, the soil clods and water are not mixed more than necessary, and the fluidity of the soil supplied from the soil accumulating body 7 is not increased, and the driven rotating body 1 can appropriately form a new ridge.

[0057] In this way, the ridging machine 2 in the second state shown in FIG. 5(c) performs ridging work in a paddy field. Even in a paddy field, when the moisture content of the soil for ridge formation is less than the reference amount, the ridge formation driving rotating body 10 is used. Also, when the ridge formation driven rotating body 1 is used, since it is not necessary to drive and rotate the rotating shaft 3, the rotation of the rotating shaft 3 may be stopped.

[0058] Also, even when the ridge formation driven rotating body 1 is used, the height of the ridging machine 2 is stabilized by the grounded ridge formation driven rotating body 1 and the gauge wheel 23 respectively. Therefore, by adjusting the relative height of the soil holding body 7 with respect to the ridge formation driven rotating body 1, the cutting depth (tillage depth) with respect to the original ridge can be adjusted. Similarly, by adjusting the relative height of the upper surface shaving body 8 with respect to the ridge formation driven rotating body 1, the upper surface shaving depth (tillage depth) with respect to the original ridge can also be adjusted.

[0059] Furthermore, by adjusting one or a plurality of soil amount adjusting means, the amount of soil for the new ridge that is pressed and compacted by the ridge formation driven rotating body 1 can be adjusted (see FIG. 1).

[0060] Specifically, for example, by changing the degree of opening of the soil stop plate 81 located behind the soil holding body 7, the amount of soil that escapes from the ridge formation driven rotating body 1 side to the field surface side can be adjusted. Also, by changing the angle of the soil adjusting plate 83 in the side cover body 82 located outside the soil holding body 7, the amount of soil that escapes from the ridge formation driven rotating body 1 side to the back field surface side (outer side) can be adjusted. Furthermore, by changing the left - right position of the auxiliary cover 84 in the cover body 11 that covers the soil holding body 7, the amount of soil piled up on the upper surface of the original ridge can be adjusted. Also, by changing the up - down position of the guard 85 in the cover body 11 that covers the soil holding body 7, the amount of soil that escapes from the soil holding body 7 side to the field surface side can be adjusted.

[0061] According to the above ridging machine 2, it includes a ridging machine main body 5, a ridging driving rotating body 10 that is detachable from the rotating shaft 3 of the ridging machine main body 5, and a ridging driven rotating body 1 that is detachable from the rotating shaft 3. When the moisture content of the soil for ridging is low, the ridging driving rotating body 10 is attached to the rotating shaft 3 and drives and rotates based on the force from the rotating shaft 3 side while compacting the low-moisture soil embankment to form ridges. And when the moisture content of the soil for ridging is high, instead, the ridging driven rotating body 1 is attached to the rotating shaft 3 and rotates passively based on the force from the ridge side while compacting the high-moisture soil embankment to form ridges. Therefore, regardless of the moisture content of the soil, the finishing accuracy of the new ridges can be improved, and thus, new ridges with good finishing can be appropriately formed.

[0062] In addition, since the ridging driven rotating body 1 is provided with a soil adhesion prevention body 42 for preventing soil from adhering to the rotating body main body 41, it can appropriately prevent soil from adhering to the rotating body main body 41 during the ridging operation in a wet paddy field. Therefore, it does not require labor such as soil removal, and the burden on the operator can be reduced.

[0063] The ridging driven rotating body 1 may be, for example, the one shown in FIGS. 6 and 7.

[0064] The rotating body main body 41 of the ridging driven rotating body 1 shown in FIGS. 6 and 7 has a plurality of openings 71 for allowing a part of the soil embankment (the highly moist plowed soil plowed by the tilling claws 27) by the soil embankment body 7 to escape to the side opposite to the ridge (inside the rotating body main body 41).

[0065] That is, for example, the side surface forming portion 46 of the rotating body main body 41 has a frustum-shaped plate member (base member) 72 in which a plurality of soil discharge openings 71 are formed. That is, this side surface forming portion 46 is composed of a plate member 72 having a frustum shape that tapers toward the upper surface forming portion 47 side and having a predetermined thickness dimension, and a plurality of triangular openings 71 are arranged side by side in the rotational direction with intervals therebetween in this plate member 72. Each opening 71 is formed so as to penetrate the inner and outer surfaces of a portion on the enlarged diameter end side of the side surface forming portion 46. Then, the soil that has entered between the outer surface of the side surface forming portion 46 (in other words, the outer surface of the plate member 72) and the inner surface of the first soil adhesion prevention member 51 is discharged to the inner surface side (paddy field side) of the side surface forming portion 46 through the soil discharge openings 71.

[0066] Further, the rotating body main body 41 has a guard portion 73 that prevents (restrains) the soil from the soil discharge opening 71, that is, the plowed soil (muddy soil with a large water content) discharged to the inside of the rotating body main body 41 by the opening 71, from moving toward the rotating shaft 3 side.

[0067] The guard portion 73 is composed of, for example, a plurality of guard plates 74 arranged in the rotational direction, and each of these guard plates 74 is fixed to the inner surface of the plate member 72 by welding or the like so as to cover the outer peripheral surface of the rotating shaft 3. And the plurality of guard plates 74 prevent the soil that has entered the rotating body main body 41 through the opening 72 of the plate member 72 from entering the rotating shaft 3.

[0068] And according to the ridge forming driven rotating body 1 shown in FIGS. 6 and 7, not only can the same operational effects as those shown in FIG. 2 and the like be achieved, but also, since the rotating body main body 41 has the soil discharge openings 71 for discharging a part of the soil plowed by the soil holding body 7 to the paddy field side, which is the side opposite to the ridge, for example, even when it is not possible to completely discharge the desired amount of soil to the paddy field side only by the soil amount adjusting means such as the soil retaining plate 81 and the guard 85 on the soil holding body 7 side, the soil can be discharged from the openings 71 of the side surface forming portion 46 of the rotating body main body 41. Therefore, appropriate ridge forming work can be performed in a wet paddy field, and moreover, it is possible to prevent the problem of soil clogging between the outer surface (surface) of the side surface forming portion 46 and the inner surface (back surface) of the first soil adhesion prevention member 51.

[0069] In addition, since the rotating body main body 41 has a guard portion 73 that prevents the soil discharged from the opening 71 formed in the side surface forming portion 46 from moving toward the rotating shaft 3 side, it is possible to appropriately prevent soil with a large water content from adhering to the rotating shaft 3 and the mounting portion 61 attached thereto. Therefore, it is not necessary to spend labor such as soil removal, and the burden on the operator can be reduced.

[0070] Further, the ridge forming driven rotating body 1 may be, for example, one shown in FIG. 8 such as a tire or a gauge wheel.

[0071] The rotating body main body 41 of the ridge forming driven rotating body 1 shown in FIG. 8 has a cylindrical side surface forming portion 46 that compacts the soil filled by the soil filling portion 7 to form one vertical side surface of the new ridge. This side surface forming portion 46 has a cylindrical tubular portion 46a and a disk-shaped plate portion 46b provided at the right end portion of this tubular portion 46a. A first soil adhesion preventing member 71 made of rubber, resin, or the like is provided on the outer peripheral surface of the tubular portion 46a so as to cover the entire outer peripheral surface thereof. Although not shown in the figure, for example, the first soil adhesion preventing member 71 may have a plurality of protrusions such as a spike tire.

[0072] Similarly, a second soil adhesion preventing 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 thereof, and this second soil adhesion preventing member 72 may also have a plurality of protrusions. Note that the first soil adhesion preventing member 71 and the second soil adhesion preventing member 72 constitute a soil adhesion preventing body 42.

[0073] Also, the ridge forming driven rotating body 1 shown in FIG. 8 can achieve the same operational effects as those shown in FIG. 2 and the like. For example, a soil adhesion preventing member may be provided on the outer surface of the plate portion 46b of the side surface forming portion 46. Further, for example, a configuration in which the outer surface of the rotating body main body 41 is exposed without providing the soil adhesion preventing members 71 and 72 may also be adopted.

[0074] Further, the ridge forming driven rotating body 1 may be, for example, one shown in FIG. 9 in which the ridge side surface is formed in a plurality of steps.

[0075] The rotating body main body 41 of the ridge forming driven rotating body 1 shown in Fig. 9 has a side surface forming portion 46 that compacts the soil filled by the soil filling body 7 to form the side surface of the new ridge in a plurality of stages. This side surface forming portion 46 has a cylindrical first cylindrical portion 46a, a disk-shaped first plate portion 46b provided at the right end of the first cylindrical portion 46a, a cylindrical second cylindrical portion 46c provided at the inner peripheral end of the first plate portion 46b, and a disk-shaped second plate portion 46d provided at the right end of the second cylindrical portion 46c.

[0076] And the ridge forming driven rotating body 1 shown in Fig. 9 can also achieve the same operational effects as those shown in Fig. 2 and the like. Although the ridge forming driven rotating body 1 illustrated in Fig. 9 does not include the 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 and 46c of the side surface forming portion 46 and the outer surfaces of the plate portions 46b and 46d, or a soil adhesion prevention member may be provided on the outer peripheral surface of the upper surface forming portion 47. Also, the number of stages of the side surface forming portion 46 may be three, or even more, four or more.

[0077] On the other hand, in each of the above-described embodiments, it is preferable that the rotating body main body of the ridge forming driven rotating body has ensuring means for ensuring straight travel, but a configuration without the ensuring means may also be used. Also, for example, a soil adhesion prevention member may be provided on the members (inner side plate 56, outer side plate 57) constituting the ensuring means.

[0078] Furthermore, for example, the rotating body main body itself may be made of a material to which soil hardly adheres, or at least the portion (ground contact surface) of the rotating body main body that comes into contact with the ridge may be made of a material to which soil hardly adheres.

[0079] Also, another ridge forming body (ridge forming driven rotating body) that is exchangeable with one ridge forming body (ridge forming driving rotating body) may have a configuration consisting only of the rotating body main body that forms a new ridge while rotating passively based on the force from the ridge side with respect to the attachment portion (rotating body attachment portion) of the ridge painting machine.

[0080] Furthermore, in order to facilitate the attachment operation of the rotating body main body of the ridge-forming driven rotating body to the attachment portion of the ridge coating machine, a restricting means (such as a detachable pin or the like) for restricting the rotation of the inner boss 64 with respect to the attachment portion (boss) 61 during the attachment operation may be provided.

[0081] Also, for example, the configuration may be such that the opening amount of the opening for soil escape in the rotating body main body of the ridge-forming driven rotating body can be adjusted, or for example, a configuration in which an opening and closing member for opening and closing the opening may be provided.

[0082] Furthermore, the ridge coating machine may be a machine dedicated to paddy fields, for example, comprising a ridge coating machine main body and a ridge-forming driven rotating body (ridge-forming body) attached to an attachment portion (a non-rotatable shaft portion or the like) of the ridge coating machine main body.

[0083] Also, the ridge coating machine includes a ridge coating machine main body and two ridge-forming bodies (a ridge-forming driving rotating body and a ridge-forming driven rotating body) that are detachable from the ridge coating machine main body and have different configurations from each other. A configuration has been described in which the ridge-forming body selected according to the moisture content of the soil for ridge formation is attached to the ridge coating machine main body. However, for example, a configuration in which three or more ridge-forming bodies are provided and one ridge-forming body selected according to the moisture content of the soil for ridge formation is attached to the ridge coating machine main body for use may also be used. In this case, for example, the ridge-forming body used when the moisture content is high is not limited to a rotary type that rotates passively by the force from the ridge side, and may be, for example, a slide type or a vibration type.

[0084] Also, for example, the configuration may be such that the rotation speed of the ridge-forming body can be made variable (for example, a configuration in which the rotation speed is changed by remote control operation according to the moisture content of the soil for ridge formation, or a configuration in which the moisture content is detected by a sensor and the rotation speed is automatically changed).

[0085] Although some embodiments and their modified examples of the present invention have been described, it is also possible to appropriately combine each embodiment and each modified example without departing from the gist of the present invention.

Explanation of Reference Numerals

[0086] 1 Ridge forming follower rotator (other ridge forming body) which is a ridge forming body 2 Ridge painting machine 3 Rotating shaft which is an attachment part 5 Ridge painting machine main body 7 Embankment part which is an embankment body 10 Ridge forming drive rotator (one ridge forming body) which is a ridge forming body 41 Rotator main body 42 Soil adhesion prevention body

Claims

1. A ridge coating machine body having an embankment part for cultivating soil for ridge formation and an attachment part, A ridge formation driving rotator that is detachable from the attachment part and drives and rotates based on the force from the attachment part side while being attached to the attachment part, A ridge formation driven rotator that is detachable from the attachment part and rotates passively based on the force from the ridge side while being attached to the attachment part, When the moisture content of the soil for ridge formation is low, the ridge formation driving rotator is attached to the attachment part, and while this attached ridge formation driving rotator drives and rotates based on the force from the attachment part side, it compacts the embankment with low moisture content to form a ridge. When the moisture content of the soil for ridge formation is high, the ridge formation driven rotator is attached to the attachment part, and while this attached ridge formation driven rotator rotates passively based on the force from the ridge side, it compacts the embankment with high moisture content to form a ridge. A ridge coating machine characterized by the above.

2. Used as the ridge formation driven rotator in the ridge coating machine according to Claim 1 A ridge formation body characterized by the above.

3. A ridge coating machine body having an embankment part for cultivating soil for ridge formation with high moisture content and an attachment part, A ridge formation body that is attached to the attachment part and compacts the embankment with high moisture content to form a ridge while rotating passively based on the force from the ridge side A ridge coating machine characterized by comprising the above.

4. When the moisture content of the soil for ridge formation is low, perform the ridge coating operation while driving and rotating the ridge formation driving rotator, and when the moisture content of the soil for ridge formation is high, perform the ridge coating operation while rotating the ridge formation driven rotator passively. A ridge coating operation method characterized by the above.

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