JP7402555B2 - Ridge coating machine - Google Patents

Description

The present invention relates to a ridge coating machine.

BACKGROUND ART A ridge coating machine is conventionally known as an agricultural machine for forming ridges in a field. A ridge coating machine is attached to the rear of a traveling machine such as a tractor, and basically consists of a pre-treatment section that cuts down a part of the old ridge and mounds the soil, and a ridge coating machine that spreads the mounded soil onto the old ridge to form the ridge. It has a ridge forming part that forms a ridge. The pretreatment section includes a work rotor equipped with a plurality of work claws for cutting down the ridges, and a cover member that prevents soil from scattering from the work rotor.

Incidentally, there may be scattered objects such as straw in the field, and if these scattered objects get caught and accumulate on the cover member of the pre-treatment section, the ridge coating machine will lift up and the ridges cannot be firmly tightened. There was a risk that it would disappear. As a countermeasure against this problem, Patent Document 1 discloses a ridge coating machine in which a mechanism for removing scattered objects such as straw is provided in front of a cover member of a pretreatment section.

JP2009-268435A

The technology described in Patent Document 1 was able to remove scattered objects (obstacles, residue) in front of the pretreatment section, and was useful in improving the efficiency of ridge coating work. . However, since it is necessary to provide a scatter removal device as a separate member in front of the cover member of the pretreatment section, the number of parts increases, which is disadvantageous in that the cost of the ridge coating machine increases. Furthermore, the technique described in Patent Document 1 does not take any measures against scattered objects that cannot be completely removed by the scattered object removing device. As described above, there is room for further improvement in the conventional ridge coating machine.

One of the objects of the present invention is to provide a ridge coating machine equipped with a mechanism that suppresses the catching of scattered objects on the cover member of the pretreatment section.

A ridge coating machine according to an embodiment of the present invention includes a ridge forming section and a pretreatment section that supplies soil to the ridge formation section, and the pretreatment section includes a work rotor provided with a plurality of work claws and a work rotor that supplies soil to the ridge formation section. The cover member includes a front plate, a back plate, a side plate connecting the front plate and the back plate, and a cover member installed between the front plate and the back plate. It has an internal plate, and the internal plate is spaced apart from the side plate in the left-right direction.

The internal plate may be spaced apart from the side plate in the vertical direction.

A sloped portion may be provided at a lower end of the internal plate, and the sloped portion may be exposed to the back plate when the cover member is viewed from the back side. The inclined portion may be arranged to connect a grounding portion of the internal plate and a bottom plate disposed along a lower end of the back plate.

The internal plate may be inclined such that the upper end is located closer to the work rotor than the lower end with respect to the vertical direction.

According to one embodiment of the present invention, it is possible to provide a ridge coating machine including a mechanism for suppressing the catching of scattered objects on the cover member of the pre-treatment section.

FIG. 1 is a diagram showing the overall configuration (storage state and working state) of the ridge coating machine according to the first embodiment. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view and a side view showing the overall configuration of a ridge coating machine according to a first embodiment. It is a figure which shows the structure of the cover member with which the top processing part of the ridge coating machine based on 1st Embodiment is equipped. It is a figure showing the composition of the cover member with which the pre-processing part of the ridge coating machine concerning a 1st embodiment is provided. It is a figure showing the composition of the cover member with which the pre-processing part of the ridge coating machine concerning a 1st embodiment is provided. It is a figure showing the composition of the cover member with which the pre-processing part of the ridge coating machine concerning a 1st embodiment is provided.

DESCRIPTION OF THE PREFERRED EMBODIMENTS A ridge coating machine according to an embodiment of the present invention will be described below with reference to the drawings. However, the ridge coating machine according to one embodiment of the present invention can be implemented in many different ways, and should not be interpreted as being limited to the contents described in the examples shown below. In the drawings referred to in this embodiment, the same parts or parts having similar functions are denoted by the same reference numerals, and repeated explanations thereof will be omitted.

In the specification and claims of the present application, unless otherwise specified, "above" indicates a direction vertically away from the field, and "bottom" indicates a direction vertically approaching the field. Further, "front" indicates the direction in which the traveling body is located with respect to the working machine, and "rear" indicates the direction 180° opposite to the front. Further, "left" indicates the left when facing the direction in which the traveling body is located with the working machine as a reference, and "right" indicates the direction 180° opposite to the left.

[Configuration of ridge coating machine]
A schematic configuration of a ridge coating machine 10 according to the present embodiment will be described using FIGS. 1 and 2. 1 and 2 are diagrams showing the overall configuration of a ridge coating machine 10 according to a first embodiment of the present invention. Here, FIG. 1(A) is a perspective view of the ridge coating machine 10 in the stored state seen from the front right upper side, and FIG. 1(B) is a perspective view of the ridge coating machine 10 in the working state seen from the front right upper side. FIG. FIG. 2(A) is a front view of the ridge coating machine 10 in a working state as seen from the front, and FIG. 2(B) is a side view of the ridge coating machine 10 in a working state as seen from the left side.

[Explanation of storage condition]
As shown in FIGS. 1 and 2, the ridge coating machine 10 in this embodiment includes a mounting section 100, an offset mechanism section 200, a power transmission section 300, and a working section 400. The ridge coating machine 10 is connected to a traveling vehicle such as a tractor through a mounting section 100. The mounting section 100 and the working section 400 are connected via the offset mechanism section 200 and the power transmission section 300. With this configuration, the ridge coating machine 10 is towed as the traveling body travels, and the ridge coating work is performed by the work unit 400.

The mounting part 100 is connected to a three-point link mechanism provided between two rear tires of the traveling aircraft. The three-point linkage mechanism of the traveling aircraft is composed of a top link, a lift rod, and a lower link. As shown in FIGS. 1A and 2A, the mounting section 100 of the ridge coating machine 10 includes a top mast 101 and a lower link connecting section 103. The top mast 101 is connected to the top link of a three-point linkage via an autohitch arm (not shown). The lower link connection portion 103 is connected to the lower link of the three-point linkage via an autohitch arm (not shown). Note that the three-point linkage mechanism is a well-known mechanism, so a detailed explanation will be omitted.

The mounting section 100 includes a hitch frame 110 extending in the left-right direction, which is the width direction of the traveling aircraft. The hitch frame 110 is configured to be connectable to the three-point link mechanism described above. A gearbox (not shown) is provided at the lower center of the hitch frame 110, and an input shaft 107 that receives power from the traveling body is provided to this gearbox (not shown). Power is transmitted to the input shaft 107 from a PTO shaft provided on the traveling aircraft via a universal joint or the like.

The offset mechanism section 200 is a rotation mechanism for performing offset movement of the working section 400. The offset mechanism section 200 can move the working section 400 to a position offset to the side of the traveling aircraft with respect to the traveling direction (D1 direction) of the traveling aircraft. The offset mechanism section 200 of this embodiment includes an offset frame 210, a link rod 220, a support frame 230, and a power section 240. The offset frame 210 is rotatably connected to the mounting portion 100 at a rotation shaft 211 and rotates around the rotation shaft 211. The link rod 220 is rotatably connected to the mounting portion 100 at a rotation shaft 221 provided at a position different from the rotation shaft 211, and rotates about the rotation shaft 221. As the offset frame 210 and the link rod 220 rotate about the rotation axes 211 and 221, respectively, the working part 400 moves to the side of the traveling body. In addition, in FIG. 1(A), the offset mechanism section 200 is in a state of being rotated to the left (clockwise) with respect to the forward direction of the traveling body. A state in which the working unit 400 is located at the rear of the traveling aircraft body is referred to as a "storage state."

The offset frame 210 is a long frame made of a hollow member, and is arranged below the power transmission section 300 (see FIG. 1(A)). As described above, one end of the offset frame 210 is rotatably connected to the hitch frame 110 at the rotation shaft 211. On the other hand, the other end of the offset frame 210 is rotatably connected to the working part 400 and the support frame 230 at a rotation shaft 213 . Offset frame 210 rotates horizontally with respect to hitch frame 110 about rotation axis 211 . The working unit 400 rotates horizontally with respect to the offset frame 210 about a rotation axis 213 . That is, the working part 400 rotates horizontally with respect to the mounting part 100. The offset frame 210 is connected to the power transmission section 300 and moves together with the power transmission section 300.

The link rod 220 is a long member made of a cylindrical member, and has approximately the same length as the offset frame 210. As described above, one end of the link rod 220 is rotatably connected to the hitch frame 110 at the rotation shaft 221. On the other hand, the other end of the link rod 220 is rotatably connected to the support frame 230 at a rotation shaft 223.

The support frame 230 is a cylindrical member that is shorter than the offset frame 210 and the link rod 220, and is a member that connects the offset frame 210 and the link rod 220 to each other. As described above, the offset frame 210 and the link rod 220 are rotatably connected to the support frame 230. The support frame 230 is connected to the working part 400 and moves together with the working part 400 when the working part 400 performs an offset operation. In other words, the angle of the support frame 230 with respect to the working part 400 is kept constant.

The shape connecting the four points of the rotation axes 211, 213, 221, and 223 is approximately a parallelogram. With the above configuration, the hitch frame 110, the offset frame 210, the link rod 220, and the support frame 230 constitute a parallelogram-shaped rotation mechanism (parallel link mechanism) with each rotation axis as its apex. With this rotation mechanism, the offset mechanism section 200 can offset the working section 400 laterally while maintaining the angle of the working section 400 with respect to the traveling direction of the traveling machine body.

The power unit 240 shown in FIG. 2(B) is a power source (actuator) of the offset mechanism unit 200, and is a telescoping member composed of, for example, an electric cylinder, a hydraulic cylinder, or the like. One end of the power unit 240 is connected to the hitch frame 110 and the other end is connected to the offset frame 210. The expansion and contraction of the power section 240 drives the offset mechanism section 200, and the offset amount (the amount of movement in the offset direction) of the working section 400 is controlled. In other words, the offset mechanism section 200 rotates the working section 400 around the rotation shaft 211 by the expansion and contraction of the power section 240. The amount of movement of the working section 400 in the offset direction is determined by the amount of expansion and contraction of the power section 240, and therefore can be adjusted steplessly.

The power transmission section 300 is a mechanism for transmitting the power from the traveling machine body received by the input shaft 107 of the mounting section 100 to the working section 400 side. A chain drive mechanism is used as the power transmission section 300. Specifically, the power transmission section 300 includes at least a driving sprocket, a driven sprocket, and a roller chain. A roller chain is wound around the driving sprocket and the driven sprocket, and power from the driving sprocket is transmitted to the driven sprocket via the roller chain. The work unit 400 receives power from a driven sprocket and performs ridge coating work.

[Explanation of work status]
As described above, switching between the storage state and the working state of the ridge coating machine 10 is performed by expanding and contracting the power section 240. Specifically, by extending the power unit 240, the storage state shown in FIG. 1(A) is switched to the "working state" shown in FIG. 1(B). When the power unit 240 extends, the working unit 400 rotates around the rotation shaft 211 by the operation of the offset mechanism unit 200, and moves laterally (offset movement) with respect to the traveling direction of the traveling body. At this time, since the angle of the support frame 230 with respect to the working part 400 is kept constant, the orientation of the working part 400 with respect to the ridge does not change during the offset movement.

The work section 400 is a part that performs ridge coating work. The working section 400 includes a ridge forming section 500, a top processing section 600, a grounding section 700, a link mechanism section 800, and a preprocessing section 900. In the stored state shown in FIG. 1(A), the link mechanism section 800 is folded and the grounding section 700 is stored upward; however, in the working state shown in FIG. 1(B), the link mechanism section 800 is unfolded. The grounding portion 700 is placed at a working position. Note that although FIGS. 2A and 2B show a state in which the working part 400 has moved offset, for convenience of explanation, a state in which the grounding part 700 is retracted upward is shown.

The ridge forming section 500 includes an upper surface forming section 510 that forms the upper surface of the ridge, and a slope forming section 520 that forms the slope of the ridge. The upper surface forming portion 510 is a cylindrical member whose central axis extends in a direction substantially perpendicular to the direction of movement of the work machine. The ridge forming part 500 is rotatably supported about this central axis. The ridge forming part 500 rotates by receiving power from the power transmission part 300. The slope forming portion 520 is a substantially conical member having an inclined surface inclined with respect to the above-mentioned central axis. The slope forming part 520 is a polyhedral drum in which a plurality of plate-like members are arranged so as to partially overlap in the circumferential direction. Each plate-shaped member can hit the slope of the ridge as the slope forming part 520 rotates, and can solidify the slope of the ridge.

Note that the shapes of the upper surface forming portion 510 and the slope forming portion 520 are not limited to the above configurations. For example, the upper surface forming section 510 may be configured by partially overlapping a plurality of plate-like members, similar to the slope forming section 520. Further, the slope forming section 520 may be an integrally formed polyhedral drum instead of a polyhedral drum made up of a plurality of plate-like members.

The preprocessing section 900 is provided in front of the slope forming section 520. The preprocessing section 900 includes a work rotor 910 (see FIG. 2(A)) having a plurality of work claws, and a cover member 920 (see FIGS. 2(A) and 2(B)) that covers the upper part of the working rotor 910. has. The work rotor 910 receives power from the power transmission section 300 and operates to rotate the plurality of work claws. In the working state, the rotation axis of the working rotor 910 is inclined with respect to the traveling direction. Specifically, the rotation axis of the work rotor 910 in the working state is inclined outward from the ridge coating machine 10 from the rear to the front of the ridge coating machine 10 . Among the plurality of work claws provided on the work rotor 910, one work claw is curved toward the rear and in a direction opposite to the rotation direction of the work claw, and another work claw is curved in a direction opposite to the rotation direction of the work claw. direction and curved forward.

The top processing section 600 is provided in front of the upper surface forming section 510. Like the preprocessing section 900, the top processing section 600 includes a work rotor 610 having a plurality of work claws and a cover member 620 that covers the upper, front, and rear sides of the work rotor 610 (see FIG. 1(B)). The work rotor 610 operates by receiving power from the power transmission section 300, and cuts down the top of the old ridge by rotating a plurality of work claws. Similar to the work rotor 910 of the preprocessing section 900, the rotation axis of the work rotor 610 of the top processing section 600 is inclined with respect to the traveling direction. Specifically, the rotation axis of the work rotor 610 is inclined toward the outside of the ridge coating machine 10 from the rear to the front of the ridge coating machine 10 .

Note that in this embodiment, the rotation axis of the work rotor 610 is parallel to the rotation axis of the work rotor 910. The plurality of work claws provided on the work rotor 610 are curved in a direction opposite to the rotational direction of the work claws and toward the front. A gap is formed between the front side of the cover member 620 and the working claw. Therefore, if the working claw, which is curved toward the rear, continues to rotate while soil is accumulated in the gap, the accumulated soil will cause progressive wear of the working claw, especially the root portion of the working claw. However, if the working claw is curved forward, the tip of the working claw that is curved forward may act on the soil before soil is accumulated between the front side of the cover member 620 and the working claw. This causes the soil to collapse, resulting in less wear on the working claws.

Further, the cover member 620 of the ceiling treatment section 600 of the present embodiment includes a shielding section 620a that shields soil scattered forward by the rotation of the work rotor 910 of the pretreatment section 900, and a cover member 620 that protects the ceiling treatment section 600 from the stored state. It is provided with a grip part 620b that is a part that the operator grips when switching between working conditions. FIG. 3 is a diagram showing the configuration of a cover member 620 included in the top treatment section 600 of the ridge coating machine 10 according to the first embodiment. Specifically, FIG. 3(A) is a diagram showing the overall configuration of the sky processing section 600. FIG. 3(B) is a side view of the cover member 620 of the top processing section 600 viewed from the right side. FIG. 3(C) is a front view of the cover member 620 of the sky processing section 600 when viewed from the front.

As shown in FIGS. 3(A) to 3(C), the upper end of the cover member 620 of the top treatment section 600 is provided with a cover to shield the soil scattered forward by the rotation of the work rotor 910 of the pretreatment section 900. A shielding portion 620a is provided. The shielding part 620a is arranged so as to cover a position where the cover member 620 of the top processing part 600 and the cover member 920 of the preprocessing part 900 do not overlap when viewed from the front. In other words, the shielding portion 620a is configured to stop soil that is scattered toward the front from the gap between the cover member 620 and the cover member 920.

As shown in FIG. 3(B), the shielding part 620a of this embodiment is a plate-shaped part integrally formed with the cover member 620, and extends toward the rear (that is, the direction in which the preprocessing part 900 is located). It is placed at an angle. As a result, the soil that has hit the shielding part 620a falls in front of the pretreatment part 900, so that it can be used for forming new ridges. Although an example is shown in which the shielding part 620a is provided using a part of the cover member 620, the present invention is not limited to this, and it is also possible to provide the shielding part 620a as a separate member to the cover member 620. .

In addition to the above-described shielding part 620a, the ridge coating machine 10 of the present embodiment also has a structure in which the cover member 920 of the pretreatment part 900 prevents soil scattered forward from the gap between the cover member 620 and the cover member 920. It has a configuration in which it is stopped using. Specifically, a shielding portion 921a is provided in a portion of a front plate 921 of a cover member 920, which will be described later (see FIGS. 4(A) to 4(D)). The shielding portion 921a of the cover member 920 is also a plate-shaped portion integrally formed with the front plate 921, similar to the shielding portion 620a of the cover member 620 described above, and is located at the rear (that is, the position of the work rotor 910 of the preprocessing section 900). It is arranged so that it is slanted in the direction of The ridge coating machine 10 of the present embodiment includes a shielding part 620a provided on the cover member 620 of the ceiling processing section 600, and a shielding section 620a provided on the cover member 920 (specifically, the front plate 921) of the pretreatment section 900. The shielding portion 921a is used to prevent soil from scattering forward from the gap between the cover member 620 and the cover member 920.

The link mechanism section 800 connects the frame 410 and the sky processing section 600 (see FIG. 1(B), FIG. 2(A), and FIG. 3(A)). Further, the link mechanism section 800 is provided above the top processing section 600. When the link mechanism section 800 is unfolded, the top processing section 600 is put into a working state, and when the link mechanism section 800 is folded, the top processing section 600 is put into a storage state. The state of the roof processing unit 600 shown in FIG. 1(A) is a stored state, and the state of the roof processing unit 600 shown in FIG. 1(B) is a working state.

The link mechanism section 800 is arranged above the sky processing section 600, and overlaps with the sky processing section 600 when viewed from above. As described above, in FIG. 1(A), the link mechanism section 800 is folded and the grounding section 700 is stored upward, but in FIG. 1(B), the link mechanism section 800 is unfolded and in the working position. In this case, the ceiling processing section 600 and the grounding section 700 are pressed in the ridge direction by their own weight. Therefore, the sky processing section 600 can be vertically swung by the link mechanism section 800.

The grounding section 700 is attached in front of the sky processing section 600. That is, the grounding section 700 can also swing up and down together with the ceiling processing section 600 by the operation of the link mechanism section 800. The ground contact portion 700 contacts the old ridge and slides on the old ridge. The height of the top processing section 600 with respect to the old ridge is determined by the contact of the grounding part 700 with the old ridge. In other words, the ground contact section 700 has a function of adjusting the plowing depth of the top field processing section 600 to a constant value.

In the ridge coating machine 10 of the present embodiment described above, countermeasures against scattered objects such as straw scattered in the field are taken by the configuration of the cover member 920 of the pretreatment section 900. This point will be explained below.

[Configuration of cover member]
The configuration of the cover member 920 that covers the work rotor 910 in the preprocessing section 900 will be explained using FIGS. 4 to 6. 4 to 6 are diagrams showing the configuration of a cover member 920 included in the pre-processing section 900 of the ridge coating machine 10 according to the first embodiment.

First, FIG. 4(A) is a side view of the cover member 920 viewed from the right side. FIG. 4(B) is a side view of the cover member 920 viewed from the right side, which is slightly closer to the front. FIG. 4C is a side view of the cover member 920 viewed from the right side, which is slightly toward the rear. FIG. 4(D) is a bottom view of the cover member 920 viewed from below.

As shown in FIGS. 4(A) to 4(D), the cover member 920 of this embodiment includes a front plate 921, a rear plate 922, a side plate 923, an inner plate 924, a side plate 925, and a bottom plate 926. have In FIGS. 4(A) to 4(D), the explanation will be given with particular attention to the internal plate 924.

The internal plate 924 is a plate-like member having a predetermined width in the vertical direction, and is arranged to span from the front plate 921 to the back plate 922. At this time, as shown in FIG. 4(A), a space 930 is secured above the internal plate 924 (between the upper end of the internal plate 924 and the side plate 923). Further, as shown in FIG. 4(D), a space 931 is secured between the internal plate 924 and the side plate 923.

During the work of the preprocessing section 900, the work rotor 910 rotates clockwise when viewed from the back side. Therefore, the soil thrown up by the rotation of the working rotor 910 is scattered toward the side plate 923. At this time, if the internal plate 924 is not placed, soil adhering to the side plate 923 may accumulate and be compacted by the work claws as the work progresses, resulting in the formation of a clod at the lower end of the side plate 923. be. In this case, there is a risk that scattered objects such as straw may get caught in the clods of soil attached to the side plate 923 and become a hindrance to the work.

Therefore, in this embodiment, by arranging the internal plate 924 inside the cover member 920, a space (gap) is secured between the internal plate 924 and the side plate 923, and the soil scattered from the work rotor 910 is removed from the side plate 923. It has a structure that prevents it from sticking and hardening. That is, according to the configuration of this embodiment, by arranging the internal plate 924, the amount of soil scattered from the work rotor 910 reaching the lower end of the side plate 923 is suppressed, and the amount of soil adhering to the side plate 923 is reduced. be able to. As a result, formation of clods on the lower end of the side plate 923 is prevented.

As described above, the internal plate 924 is arranged to span from the front plate 921 to the back plate 922. That is, one end of the internal plate 924 is fixed to the front plate 921 and the other end is fixed to the back plate 922. At this time, as shown in FIG. 4(D), the internal plate 924 is disposed apart from the side plate 923 (with a predetermined gap) in the left-right direction (direction seen from the side). Thereby, a space 931 is secured between the internal plate 924 and the side plate 923, and formation of clods at the lower end of the side plate 923 can be prevented.

Further, the internal plate 924 is arranged at the lower end of the side plate 923, and a space 930 is secured between the upper end of the internal plate 924 and the side plate 923, as shown in FIG. 4(A). That is, in the vertical direction (direction viewed from above or below), the internal plate 924 is arranged apart from the side plate 923 (with a predetermined gap). As described above, the work rotor 910 of the preprocessing section 900 rotates clockwise when viewed from the back side. Therefore, the soil thrown by the work rotor 910 may go around from below the internal plate 924 toward the side plate 923. However, even in this case, since the space 930 is provided above the internal plate 924, the soil that has gone around between the side plate 923 and the internal plate 924 is transferred to the work rotor 910 side through the space 930. It can be returned. Therefore, the soil that has gone around does not accumulate between the side plate 923 and the internal plate 924.

Note that although FIG. 4D shows an example in which the internal plate 924 is arranged substantially parallel to the vertical direction (for example, the vertical direction), the present invention is not limited to this. For example, the internal plate 924 may be inclined such that the upper end is located closer to the work rotor 910 than the lower end with respect to the vertical direction. With such a configuration, when the soil scattered from the work rotor 910 hits the surface of the internal plate 924 that faces the work rotor 910, the soil is difficult to adhere to because the surface is inclined downward. There is an advantage.

Further, as shown in FIGS. 4(A) and 4(B), an inclined portion 924a is provided at the lower end of the rear side of the internal plate 924. The inclined portion 924a and the grounding portion 924b of the internal plate 924 are exposed to the back plate 922 when the cover member 920 is viewed from the back side, and are in contact with the grounding portion 924b of the internal plate 924 and a bottom plate 926, which will be described later. There is a difference in height H from the ground 926a (see FIG. 5(B)). The inclined portion 924a is arranged so as to connect the aforementioned grounding portion 924b and the grounding surface 926a. The reason for such a structure will be described later using FIG. 5.

In FIGS. 5(A) to 5(C), description will be given with particular attention to the side plate 925. The side plate 925 is a plate-like member disposed below the side plate 923. The side plate 925 has the role of letting scattered objects such as straw located in front of the pretreatment section 900 escape to the side. In other words, it functions as a guide member that guides the scattered objects to the outside in order to prevent the scattered objects from getting caught on the outer end of the cover member 920 and forming a large lump.

In this way, it is necessary to guide the scattered objects in front of the pre-processing section 900 to the outside of the side plate 925, so as shown in FIG. The inclined portion 925a is provided so that the width thereof gradually becomes narrower toward the tip. Specifically, the inclined portion 925a is provided on the outer side of the side plate 925. The scattered objects in contact with the side plate 925 are guided by the inclined portion 925a and move outward, so that no lumps are formed at the outer end of the cover member 920.

Further, as shown in FIG. 5(B), the side plate 925 is arranged so as to gradually slope upward from the front toward the rear. In practice, the side plates 925 are arranged so that their height relative to the field scene gradually changes from the front to the rear. This is a configuration to prevent scattered objects from getting under the cover member 920. In other words, since the side plate 925 is gradually inclined upward, the side plate 925 moves forward while lifting the scattered objects upward.

As described above, in this embodiment, by providing the side plate 925 on the side plate 923 of the cover member 920, scattered objects such as straw are guided upward and outward toward the rear, and the scattered objects are caught on the cover member 920. The amount is being reduced.

Next, the bottom plate 926 will be explained using FIGS. 5 and 6. As shown in FIGS. 5(C), 6(A), and 6(B), the bottom plate 926 is disposed along the lower edge of the back plate 922. Specifically, the bottom plate 926 is a plate-like member and is arranged to protrude rearward from the back plate 922. That is, the bottom plate 926 has a surface (hereinafter referred to as "ground plane 926a") facing downward (that is, the field), and during operation, the bottom plate 926 comes into contact with the field.

The bottom plate 926 is provided for the purpose of preventing the back plate 922 from coming into linear contact with the field. When the pretreatment unit 900 operates in a field where scattered objects such as straw are scattered, there may be many scattered objects between the cover member 920 and the field. At this time, if the bottom plate 926 is not present, the lower end of the back plate 922 will rest on the scattered objects. In this case, the lower end of the back plate 922 will pinch the scattered objects and dig into the field, so there is a risk that the scattered objects will be caught on the back plate 922 and form a large lump.

In this embodiment, by arranging the bottom plate 926, the lower end of the back plate 922 rests on the scattered object together with the ground plane 926a of the bottom plate 926. That is, the back plate 922 of the cover member 920 contacts the scattered objects on the field at the ground plane 926a. Therefore, the force that pushes the scattered objects into the field is dispersed, so the scattered objects can be released backwards without being caught.

Further, as described above, there is a difference in height H between the grounding portion 924b of the internal plate 924 and the grounding surface 926a of the bottom plate 926 (see FIGS. 5(B) and 6(A)). That is, as shown in the enlarged views of FIGS. 5(B) and 6(A), the inclined portion 924a of the internal plate 924 connects the grounding portion 924b of the internal plate 924 and the grounding surface 926a of the bottom plate 926. It is located in Thereby, the cover member 920 moves forward while pressing the scattered objects below against the field by the ground contact portion 924b of the inner plate 924, so that the scattered objects are not caught inside the back plate 922. That is, the grounding portion 924b of the internal plate 924 is located at a lower position than the grounding surface 926a of the bottom plate 926, and the grounding portion 924b of the internal plate 924 and the grounding surface 926a of the bottom plate 926 are connected to the inclined portion 924a of the internal plate 924. By connecting the cover member 920 with the ground surface 926a of the bottom plate 926, the cover member 920 is configured to come into contact with the scattered objects. This allows the cover member 920 to move over scattered objects such as straw, thereby preventing the scattered objects from being caught.

As described above, the cover member 920 in the pre-processing section 900 of this embodiment has the configuration described using FIGS. 4 to 6, and can suppress the catching of scattered objects such as straw scattered in the field. As a result, the ridge coating machine 10 will not be lifted up due to the catch of scattered objects on the cover member 920, and the ridges can be firmly tightened. Further, it is possible to save the effort of manually removing scattered objects caught on the cover member 920. Furthermore, there is no need to attach a special mechanism to the cover member 920, and an increase in the cost of the ridge coating machine 10 can also be prevented.

Although the present invention has been described above with reference to the drawings, the present invention is not limited to the above-described embodiments, and can be modified as appropriate without departing from the spirit of the present invention. Furthermore, the embodiments described above can be combined with each other unless a particular technical contradiction occurs.

DESCRIPTION OF SYMBOLS 10... Ridge coating machine, 100... Mounting part, 101... Top mast, 103... Lower link connection part, 107... Input shaft, 110... Hitch frame, 200... Offset mechanism part, 210... Offset frame, 211, 213... Rotation Axis, 220... Link rod, 221, 223... Rotating shaft, 230... Support frame, 240... Power section, 300... Power transmission section, 400... Working section, 410... Frame, 500... Ridge forming section, 510... Top surface formation Part, 520...Slope forming part, 600...Top processing part, 610...Work rotor, 620...Cover member, 620a...Shielding part, 620b...Gripping part, 700...Grounding part, 800...Link mechanism part, 900...Front Processing part, 910... Working rotor, 920... Cover member, 921... Front plate, 921a... Shielding part, 922... Back plate, 923... Side plate, 924... Internal plate, 924a... Inclined part, 924b... Grounding part, 925... Side part plate, 925a... inclined part, 926... bottom plate, 926a... ground plane, 930, 931... space

Claims (4)

A ridge coating machine comprising a ridge forming section and a pretreatment section that supplies soil to the ridge forming section,
The pre-processing section includes a work rotor having a plurality of work claws and a cover member that covers a part of the work rotor,
The cover member has a front plate, a back plate, a side plate connecting the front plate and the back plate, and a bottom plate disposed along the lower end of the back plate,
The bottom plate has ground planes fixed to face each other downward,
A ridge coating machine , wherein the width of the ground plane in the front-rear direction is greater than the thickness of the bottom plate . The ridge coating machine according to claim 1 , wherein the bottom plate is arranged to protrude rearward from the back plate. A ridge coating machine comprising a ridge forming section and a pretreatment section that supplies soil to the ridge forming section,
The pre-processing section includes a work rotor having a plurality of work claws and a cover member that covers a part of the work rotor,
The cover member includes a front plate, a back plate, a side plate connecting the front plate and the back plate, a bottom plate disposed along a lower end of the back plate, and a space between the front plate and the back plate. has an internal plate built into it;
the bottom plate has a downwardly opposing ground plane;
In the ridge coating machine, the grounding portion of the internal plate is located below the grounding surface of the bottom plate. A sloped portion is provided at the lower end of the internal plate,
The ridge coating machine according to claim 3 , wherein the inclined portion is arranged to connect the grounding portion of the inner plate and the grounding surface of the bottom plate.

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