JP2022047783A - Ridge-top roller and ridge plastering machine - Google Patents

Abstract

To provide a ridge plastering machine including a ridge-top roller capable of forming strong ridge sides.SOLUTION: A ridge plastering machine 1 comprises banking means 3 for banking soil, and ridge forming means 4 compacting the soil banked by the banking means 3 to form a ridge. The ridge forming means 4 includes a ridge-side forming body 6, and the ridge-side forming body 6 includes a ridge-top roller 7 at the end thereof. The ridge-top roller 7 includes a ridge-top forming body 41 having a spiral step part 43. The ridge-top forming body 41 includes a ridge-side forming body 42, at the end thereof. The ridge-side forming body 42 has a step part 55 located between ridge-side forming plates 51 that are adjacent to each other in the rotation direction.SELECTED DRAWING: Figure 1

Description

The present invention relates to a ridge top roller and a ridge coating machine used in a ridge coating machine.

Conventionally, for example, the ridge upper surface roller described in Patent Document 1 below is known. This conventional ridge upper surface roller includes a ridge upper surface forming body that forms a ridge upper surface while rotating in a predetermined direction, and a truncated cone-shaped ridge shoulder surface forming body having no step is provided at an end portion of the ridge upper surface forming body. Shoulder ridges) are provided. That is, the outer peripheral surface of the ridge shoulder surface forming body is formed in the shape of a conical surface.

Japanese Unexamined Patent Publication No. 2013-230092 (Fig. 7)

However, in the conventional ridge upper surface roller, since the outer peripheral surface of the ridge shoulder surface forming body is formed in the shape of a conical surface, there is a possibility that the compaction of the soil by the ridge shoulder surface forming body is insufficient. ..

The present invention has been made in view of such a point, and an object of the present invention is to provide a ridge upper surface roller and a ridge coating machine capable of forming a strong ridge shoulder surface.

The ridge upper surface roller according to claim 1 is a ridge upper surface roller used in a ridge coating machine, and includes a ridge upper surface forming body and a ridge shoulder surface forming body provided on the ridge upper surface forming body, and the ridge shoulder surface forming body. The surface forming body has a plurality of ridge shoulder surface forming portions arranged side by side in the rotation direction, and a step portion located between the ridge shoulder surface forming portions adjacent to each other in the rotation direction.

The ridge upper surface roller according to claim 2 is a ridge upper surface roller used in a ridge coating machine, and is a ridge upper surface forming body having a spiral stepped portion and a ridge shoulder surface forming body provided on the ridge upper surface forming body. The ridge shoulder surface forming body is located between a plurality of ridge shoulder surface forming portions located side by side in the rotation direction and the ridge shoulder surface forming portions adjacent to each other in the rotation direction, and the spiral step. The portion has a discontinuous step portion.

The ridge upper surface roller according to claim 3 is the ridge upper surface roller according to claim 1, wherein the stepped portion of the ridge shoulder surface forming body is positioned in a straight line with respect to the stepped portion of the ridge side surface forming body in the side view. It is a thing.

The ridge upper surface roller according to claim 4 is the ridge upper surface roller according to claim 1, wherein the stepped portion of the ridge shoulder surface forming body is positioned in an inclined shape with respect to the stepped portion of the ridge side surface forming body in a side view. It is a thing.

The ridge upper surface roller according to claim 5 is the ridge upper surface roller according to any one of claims 1 to 4, so that the stepped portion of the ridge shoulder surface forming body is continuous with the stepped portion of the ridge side surface forming body in a side view. It is located in.

The ridge coating machine according to claim 6 includes an embankment means for raising soil and a ridge forming means for compacting the embankment by the embankment means to form ridges, and the ridge forming means rotates on the side surface of the ridge. The ridge surface forming body to be formed, and the ridge upper surface roller according to any one of claims 1 to 5, which is provided at the end of the ridge side surface forming body and forms the ridge upper surface and the ridge shoulder surface while rotating. Is.

According to the present invention, a strong ridge shoulder surface can be formed.

It is a top view of the ridge coating machine using the ridge upper surface roller which concerns on one Embodiment of this invention. It is a perspective view of the ridge forming means of the ridge coating machine of the same as above. Same as above It is a side view of the ridge forming means. FIG. 3 is a cross-sectional view taken along the line AA in FIG. It is a side view of the ridge upper surface roller with the extension roller member removed. It is a partial plan view of the ridge upper surface roller of the same as above. It is a figure which shows the height of the step part of the ridge shoulder surface forming body of the ridge upper surface roller of the same as above. It is a side view of the ridge forming means provided with the ridge upper surface roller which concerns on other embodiment of this invention. Same as above It is a plan view of the upper surface roller of the ridge. It is a partial plan view of the ridge upper surface roller which concerns on still another Embodiment of this invention. It is a figure which shows the height of the step part of the ridge shoulder surface forming body of the ridge upper surface roller of the same as above.

A ridge coating machine using a ridge top roller according to an embodiment of the present invention will be described with reference to FIGS. 1 to 7.

In FIG. 1, reference numeral 1 denotes a ridge coating machine, and the ridge coating machine 1 is connected to the rear part of a tractor (not shown) which is a traveling vehicle, and is forward (in the direction of travel) in a forward working state by the forward traveling of the tractor in a field. The ridge painting work is done while moving to. In the corner of the field, the ridge coating machine 1 performs the ridge coating work while moving backward (in the direction of travel) by the tractor traveling backward in a state of being switched to the return work state.

The ridge coating machine 1 is a machine 2 detachably connected to a three-point link portion at the rear of the tractor, and is rotatably provided on the machine 2 to cultivate a rice field and a ridge (former ridge) while rotating in a predetermined direction. An embankment means (cultivation part) 3 for heaping up the soil, and a ridge forming means (new ridge) that is rotatably provided on the machine 2 and compacts the embankment by the embankment means 3 while rotating in a predetermined direction. The disk unit) 4 is provided.

Then, the ridge forming means 4 has a truncated cone shape (including a substantially truncated cone shape) that compacts the embankment while rotating in a predetermined direction around the horizontal rotation center axis X in the left-right direction to form an inclined surface-shaped ridge side surface. The ridge side surface forming body 6 and the end of the ridge side surface forming body 6 on the reduced diameter side are provided and rotate together with the ridge side surface forming body 6 about the rotation center axis X. Cylindrical shape (substantially cylindrical) It is provided with a ridge upper surface roller (spiral roller) 7 (including a shape; the same applies hereinafter).

The ridge forming means 4 is driven and rotated about the rotation center axis X based on the power from the input shaft side (not shown), but its peripheral speed is faster than the traveling speed of the tractor. Further, a part of the ridge side surface forming body 6 of the ridge forming means 4 is covered with a cover body for the ridge forming means (not shown), and the embankment means 3 is covered with the cover body 9 for the embankment means. On the front side of the embankment means 3, a ridge top surface shaving means (not shown) for shaving the ridge top surface is provided.

The machine body 2 has a machine frame 11 that is detachably connected to a three-point link portion at the rear of the tractor. An input shaft (not shown) is rotatably provided on the machine frame 11, and the PTO shaft of the tractor is connected to the input shaft via a joint. Then, based on the power input by the input shaft, the embankment means 3, the ridge forming means 4, and the ridge top surface cutting means are driven and rotated to perform the work. The working portion 10 is composed of the embankment means 3, the ridge forming means 4, and the ridge top surface scraping means.

A movable machine frame 12 is connected to the machine frame 11 via a connecting means 13, and a working unit 10 is provided on the movable machine frame 12. Then, the movable machine frame 12 is moved by the expansion and contraction of the cylinders 16 and 17, which are the expansion and contraction driving means, so that the ridge coating machine 1 is selectively switched to a desired state (advance work state, retracted state and return work state). .. Further, the movable machine frame 12 is provided with a gauge wheel (direction wheel) 18 that travels in contact with the ground surface.

The embankment means 3 has a rotating shaft 21 in the front-rear direction that is driven and rotated based on a power from the input shaft side, and a plurality of tilling claws 22 for embankment are attached to the rotating shaft 21.

The ridge forming means 4 has a rotating shaft 26 in the left-right direction that is driven and rotated based on a power from the input shaft side, and a ridge side forming body 6 is attached to the tip of the rotating shaft 26 to form the ridge side surface. A ridge upper surface roller 7 is attached to the end of the body 6 on the reduced diameter side.

The base end portion of the rotating shaft 26 is rotatably supported by the shaft supporting portion 27 of the movable machine frame 12. The straight line passing through the axis of the rotation axis 26 is the rotation center axis (rotation center) X, and the ridge side surface forming body 6 and the ridge top surface roller 7 are integrally driven and rotated (slip rotation) around this rotation center axis X. do.

Here, the ridge side surface forming body 6 is formed in a truncated cone shape as shown in FIGS. 2 to 4. The ridge side surface forming body 6 has a truncated cone-shaped base member 31, and a mounting portion 30 on the rotation center side of the base member 31 is detachably attached to the tip end portion of the rotating shaft 26.

On the outer peripheral surface side (surface side) of the base member 31, a plurality of plate-shaped ridge side surface forming portions that are compacted so as to push the embankment in the rear side in the rotation direction to form an inclined surface-shaped ridge side surface are formed. The plate (face plate) 32 is detachably attached. Each ridge side surface forming plate 32 is formed, for example, in the shape of a fan and in the shape of a curved plate convex on the outer surface side. The ridge side surface forming plate 32 can be replaced individually.

The plurality of ridge side surface forming plates 32 are arranged side by side in the rotation direction and are arranged radially with respect to the rotation center axis X. Further, each ridge side surface forming plate 32 is positioned so that the distance from the rotation center axis X gradually increases from the front end side in the rotation direction toward the rear end side in the rotation direction. That is, each ridge side surface forming plate 32 is attached to the base member 31 so that the distance from the outer peripheral surface of the conical surface of the base member 31 increases toward the rear end in the rotation direction.

A longitudinal step portion 33 along the radial direction of the ridge side surface forming body 6 is located between the two ridge side surface forming plates 32 adjacent to each other in the rotation direction. That is, on the outer peripheral surface side of the ridge side surface forming body 6, a plurality of linear stepped portions 33 are formed at the boundary portion of each ridge side surface forming plate 32. Therefore, the ridge side forming body 6 is compacted by hitting the embankment by intermittently contacting the working surface 34 on the rear outer surface of the ridge side forming plate 32 in the rotation direction with the embankment during rotation.

The step portion 33 of the ridge side surface forming body 6 is located along the radial direction of the virtual circle centered on the rotation center axis X in the side view (see FIG. 3). Further, although not shown, the height dimension of the step portion 33 gradually decreases from the reduced diameter end side to the enlarged diameter end side of the ridge side surface forming body 6, but is not limited to this, for example. It may be constant over the entire length, or conversely, it may be larger toward the enlarged diameter end.

Further, as shown in FIG. 4, the connecting crown 36 and the intermediate flange 37 are detachably attached to the attachment portion (boss portion) 30 on the rotation center side of the base member 31 of the ridge side surface forming body 6 with bolts 38. There is. A plurality of auxiliary plates 39 are projected from the outer peripheral surface of the mounting portion 30. The ridge upper surface roller 7 is detachably attached to the annular intermediate flange (ridge upper surface roller mounting portion) 37 of the ridge side surface forming body 6 with bolts 40.

As shown in FIGS. 2 to 7, the ridge upper surface roller 7 includes a cylindrical ridge upper surface forming body 41 that forms a horizontal ridge upper surface while rotating about the rotation center axis X, and the ridge upper surface forming body. The ridge side surface forming body 41 is connected to the end portion on the 6 side (inner end portion which is one end in the axial direction), and is rotated around the rotation center axis X together with the ridge top surface forming body 41 and has an inclined surface-shaped ridge. It is provided with a ridge shoulder surface forming body (shoulder part) 42 that forms a shoulder surface (shoulder portion).

The ridge upper surface forming body 41 is formed in a cylindrical shape with a step. That is, a plurality of spiral stepped portions 43 are formed in a protruding shape on the outer peripheral surface side of the ridge upper surface forming body 41. Therefore, the ridge upper surface forming body 41 compacts the embankment on the upper surface of the ridge of the original ridge at the time of rotation, and moves a part of the embankment toward the ridge shoulder surface forming body 42 side (one end side in the axial direction). In other words, the ridge upper surface forming body 41 compacts the embankment to form the ridge upper surface when rotating around the rotation center axis X, and supplies a part of the embankment closer to the ridge shoulder surface forming body 42 side. do. The stepped portion 43 of the ridge upper surface forming body 41 is formed in a spiral shape toward the front in the rotational direction as the distance from the ridge shoulder surface forming body 42 increases.

Further, the ridge upper surface forming body 41 has a cylindrical roller member 46 located on the ridge shoulder surface forming body 42 side and an outer end portion of the roller member 46 (the end portion on the side opposite to the ridge shoulder surface forming body 42 side). ) Is detachably attached by a mounting means (for example, bolts and nuts) 49, and a cylindrical extension roller member 47 is detachably attached to the outer end of the extension roller member 47 by an attaching means (for example, bolts and nuts) 50. It has a disk-shaped cover member 48 attached to it. The ridge shoulder surface forming body 42 is integrally provided at the inner end portion of the roller member 46.

The roller member 46 has a mounting flange 45, which is a mounting portion, on the inner end side, and the mounting flange 45 is mounted on the intermediate flange 37 with bolts 40. The operator who performs the mounting work can operate the bolt 40 from the opening 44 (see FIG. 5).

The ridge shoulder surface forming body 42 is formed in the shape of a truncated cone like the ridge side surface forming body 6. That is, the ridge shoulder surface forming body 42 is formed in a truncated cone shape whose diameter gradually increases toward the ridge side surface forming body 6 side. Then, the ridge shoulder surface forming body 42 is compacted so as to push the embankment (including the embankment supplied by the ridge top surface forming body 41) on the rear side in the rotation direction to form an inclined surface-shaped ridge shoulder surface. It has a ridge shoulder surface forming plate 51 which is a plurality of ridge shoulder surface forming portions.

The number of ridge shoulder surface forming plates 51 is the same as the number of ridge side surface forming plates 32 of the ridge side forming body 6. The base end portion (narrow side end portion) of the ridge side surface forming plate 32 overlaps with the ridge shoulder surface forming plate 51, and the outer surface of the base end portion of the ridge side surface forming plate 32 is covered by the ridge shoulder surface forming plate 51. ing. In this way, the ridge shoulder surface forming body 42 is continuously provided at the reduced diameter side end of the ridge side surface forming body 6, and the ridge upper surface forming body 41 is provided at the reduced diameter side end of the ridge shoulder surface forming body 42. It is installed continuously.

Each ridge shoulder surface forming plate 51 is formed, for example, in the shape of a curved plate that is slightly longitudinal in the rotation direction and convex on the outer surface side. Further, the ridge shoulder surface forming plate 51 is bent stepwise at a plurality of points along, for example, two (one or three or more) circumferential bending lines 52 and 53. That is, the ridge shoulder surface forming plate 51 has a first plate portion 51a, a second plate portion 51b, and a third plate portion 51c, which have different inclination angles with respect to the rotation center axis X (see FIG. 6).

Of the first plate portion 51a, the second plate portion 51b, and the third plate portion 51c, the inclination angle of the third plate portion 51c is the maximum, but the inclination angle is smaller than the inclination angle of the ridge side forming plate 32. Further, a triangular notch 54 is formed on the rear side of the third plate portion 51c in the rotation direction. The ridge shoulder surface forming plate 51 may be bent into a continuous curved surface without having, for example, the polygonal lines 52 and 53.

The plurality of ridge shoulder surface forming plates 51 are arranged side by side in the rotation direction and radially about the rotation center axis X so as to correspond to the ridge side surface forming plate 32. Further, each ridge shoulder surface forming plate 51 is positioned so that the distance from the rotation center axis X gradually increases from the front end side in the rotation direction toward the rear end side in the rotation direction, similarly to the ridge side surface forming plate 32. (See FIG. 7). The two-dot chain line in FIG. 7 is a part of a virtual circle centered on the rotation center axis X.

A longitudinal step portion 55 along the radial direction of the ridge shoulder surface forming body 42 is located between the two ridge shoulder surface forming plates 51 adjacent to each other in the rotation direction. That is, the two ridge shoulder surface forming plates 51 that are adjacent to each other in the rotation direction are integrally connected via a stepped portion 55 that also serves as a connecting portion. Therefore, in the ridge shoulder surface forming body 42, like the ridge side surface forming body 6, the working surface 56 on the rear outer surface in the rotation direction of the ridge shoulder surface forming plate 51 intermittently contacts the embankment during embankment. Tighten as if tapping.

Here, the stepped portion 55 of the ridge shoulder surface forming body 42 is positioned so as to be continuous with the stepped portion 33 of the ridge side surface forming body 6 in the side view, and is linear with respect to the stepped portion 33 of the ridge side surface forming body 6 ( (Parallel) (see FIG. 3). The stepped portion 55 of the ridge shoulder surface forming body 42 is discontinuous with the stepped portion 43 of the ridge upper surface forming body 41. That is, the step portion 55 of the ridge shoulder surface forming body 42 is displaced by a predetermined distance in the rotational direction from the step portion 43 of the ridge upper surface forming body 41, and the end portion of the step portion 55 on the ridge upper surface forming body 41 side. Is located near the center position between the two stepped portions 43 adjacent to each other in the rotation direction.

At least a part of the stepped portion 55 of the ridge shoulder surface forming body 42 overlaps with the stepped portion 33 of the ridge side surface forming body 6. Further, the end portion 55a of the step portion 55 on the side opposite to the ridge upper surface forming body 41 side is integrally provided at the front end in the rotation direction of the third plate portion 51c and faces the notch 54 on the front side in the rotation direction. There is.

The height dimension H of the stepped portion 55 of the ridge shoulder surface forming body 42 is, for example, a constant dimension over the entire length, for example, 2 mm or more and not more than the maximum height dimension of the stepped portion 33 of the ridge side surface forming body 6, preferably. For example, it is "3 mm" (see FIG. 7). For example, the height dimension H of the step portion 55 is not constant and may be increased or decreased according to the height dimension of the step portion 33.

The width dimension (axial length dimension) L of the ridge shoulder surface forming body 42 is, for example, a dimension corresponding to the size of the ridge, for example, 15 mm or more and 70 mm or less, preferably "60 mm" (Fig.). 6).

Next, the operation of the ridge coating machine 1 and the like will be described.

When the ridge coating machine 1 is connected to the rear part of the tractor and the ridge coating machine 1 is moved in the traveling direction by running the tractor, the ridge top surface scraping means cultivates and scrapes the top surface of the original ridge and fills the soil behind the traveling direction. Means 3 cultivates the rice field and the original ridges and raises the soil for ridge coating on the original ridges, and the ridge forming means 4 compacts the embankments to form new ridges behind the embankment.

At this time, the ridge upper surface forming body 41 having the stepped portion 43 compacts the embankment while rotating in a predetermined direction to form the ridge upper surface, and supplies a part of the embankment toward the ridge shoulder surface forming body 42 side. Further, the ridge shoulder surface forming body 42 having the step portion 55 compacts the embankment (including the embankment gathered by the spiral step portion 33) while rotating in a predetermined direction to form the ridge shoulder surface. Further, the ridge side surface forming body 6 having the stepped portion 33 compacts the embankment while rotating in a predetermined direction to form the ridge side surface, and as a result, the ridge surface, the ridge shoulder surface and the ridge are seamless and smoothly continuous. New ridges with sides are formed.

Then, according to such a ridge coating machine 1, a strong ridge shoulder surface in which a desired amount of soil is sufficiently compacted can be formed, and a strong ridge that does not easily collapse can be finished. Therefore, for example, the occurrence of cracks on the shoulder surface of the ridge can be suppressed, and the collapse of the ridge caused by the crack can be appropriately prevented.

In addition, three parts (ridge top surface forming body 41, ridge shoulder surface forming body 42, and ridge side surface forming body 6) connected to each other can be used to finish a ridge having a smooth shape without joints (raised lines). Therefore, for example, it is possible to prevent water from accumulating on the upper surface of the ridge and the shoulder surface of the ridge, and it is possible to suppress the growth of weeds.

In the above embodiment, the stepped portion 55 of the ridge shoulder surface forming body 42 is positioned in a straight line with respect to the stepped portion 33 of the ridge side surface forming body 6 in a side view, but the present invention is not limited to this, for example. As shown in FIGS. 8 and 9, the ridge side forming body 6 may be positioned so as to be inclined with respect to the step portion 33 in the side view.

In this illustrated example, in a plan view, the angle of the step portion 55 of the ridge shoulder surface forming body 42 with respect to the rotation center axis X is smaller than the angle of the step portion 43 of the ridge upper surface forming body 41 with respect to the rotation center axis X (FIG. 9). The inclined (spiral) step portion 55 in the same direction as the spiral step portion 43 is not limited to a straight linear one, but has a curved shape similar to the spiral step portion 43. It may be.

Further, in the above embodiment, the ridge shoulder surface forming body 42 is an integral type composed of an integral single member, but the present invention is not limited to this, and for example, as shown in FIGS. 10 and 11, respectively. It may be a separate type consisting of a plurality of separate ridge shoulder surface forming plates (independent plates) 51.

In this illustrated example, of the two ridge shoulder surface forming plates 51 adjacent to each other in the rotation direction, one of the ridge shoulder surface forming plates 51 located on the front side in the rotation direction is the rear end portion in the rotation direction, and these two ridge shoulder surface forming plates. Of the 51, the other ridge shoulder surface forming plate 51 located on the rear side in the rotation direction is connected to the front end portion in the rotation direction so as to have a stepped portion 55 so as to overlap each other. The height dimension H of the step portion 55 is, for example, "2 mm" of the plate thickness dimension of the ridge shoulder surface forming plate 51.

In addition, for example, a configuration in which adjacent ridge shoulder surface forming plates are connected to each other by using a separate connecting member may be used, and there may or may not be an overlapping portion of the ridge shoulder surface forming plates adjacent to each other, and further ridges may be present. As with the side forming plate, each ridge shoulder surface forming plate may be individually replaceable.

Further, in any of the above embodiments, the ridge side surface forming plate and the ridge shoulder surface forming plate (ridge shoulder surface forming portion) are preferably made of metal such as stainless steel, but elastic deformation such as resin or rubber is preferable. It may be possible.

Further, the ridge side surface forming body may be configured to connect adjacent ridge side surface forming plates to each other by using, for example, a separate connecting member, and may or may not have an overlapping portion of the ridge side surface forming plates adjacent to each other. It may be an integrated configuration composed of a single member.

Further, the ridge upper surface forming body preferably has a spiral step portion for compacting the embankment and supplying a part of the embankment toward the ridge shoulder surface forming body side, but for example, a non-spiral step portion (for example). It may have a linear stepped portion along the axial direction), or may have an outer peripheral surface formed into a cylindrical surface without a stepped portion.

Although some embodiments of the present invention and modified examples thereof have been described, it is also possible to appropriately combine the embodiments and the modified examples without departing from the gist of the present invention.

1 Ridge coating machine 3 Filling means 4 Ridge forming means 6 Ridge side forming body 7 Ridge top roller
33 Stepped part of ridge side forming body
41 Ridge top surface forming body
42 ridge shoulder formation
43 Stepped part of the ridge upper surface forming body
51 Ridge shoulder surface forming plate, which is the ridge shoulder surface forming part
55 Stepped part of ridge shoulder surface forming body

Claims (6)

It is a ridge top roller used for ridge coating machines.
With the ridge upper surface forming body,
The ridge shoulder surface forming body provided on the ridge upper surface forming body is provided.
The ridge shoulder surface forming body is
Multiple ridge shoulder surface forming parts located side by side in the direction of rotation,
A ridge upper surface roller having a step portion located between the ridge shoulder surface forming portions adjacent to each other in the rotation direction. It is a ridge top roller used for ridge coating machines.
A ridge upper surface forming body having a spiral stepped portion,
The ridge shoulder surface forming body provided on the ridge upper surface forming body is provided.
The ridge shoulder surface forming body is
Multiple ridge shoulder surface forming parts located side by side in the direction of rotation,
A ridge upper surface roller which is located between the ridge shoulder surface forming portions adjacent to each other in the rotation direction and has a step portion discontinuous with the spiral step portion. The ridge upper surface roller according to claim 1 or 2, wherein the step portion of the ridge shoulder surface forming body is located in a straight line with respect to the stepped portion of the ridge side surface forming body in a lateral view. The ridge upper surface roller according to claim 1 or 2, wherein the step portion of the ridge shoulder surface forming body is located at an angle with respect to the stepped portion of the ridge side surface forming body in a lateral view. The ridge upper surface roller according to any one of claims 1 to 4, wherein the stepped portion of the ridge shoulder surface forming body is positioned so as to be continuous with the stepped portion of the ridge side surface forming body in a lateral view. Embankment means to heap up the soil and
It is provided with a ridge forming means for forming ridges by compacting the embankment by the embankment means.
The ridge forming means is
A ridge side forming body that forms the ridge side while rotating,
A ridge coating machine provided at an end portion of the ridge side surface forming body, comprising the ridge upper surface roller according to any one of claims 1 to 5, which is provided at an end portion of the ridge surface forming body and forms a ridge upper surface and a ridge shoulder surface while rotating.

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