JP7170354B2 - Earthen board - Google Patents

Description

The present invention relates to working machines. In particular, it relates to a tiller that is attached to the rear part of a tractor and tills a field.

Such a tilling machine includes, for example, a tilling rotor that rotates a plurality of tilling tines attached to a tilling shaft to plow a field, and a leveling rotor that is provided behind the tilling rotor and levels the tilled soil. 2. Description of the Related Art There is a puddling machine having a body and a leveler provided at the rear of a ground leveling body and supported so as to be vertically rotatable with respect to the ground leveling body and in contact with a field surface.

Such a puddling machine performs the work of plowing and leveling the field surface after the tractor (running machine) has passed. Depressions (tire marks) are formed, and uneven soil may occur. Due to the unevenness of the soil due to the tire marks, the finish of the leveling work by the puddling machine may be insufficient.

Therefore, a work machine is known in which a mulching plate is provided on the forward side (travel machine side) in the traveling direction of the work machine. The mulching plate is a plate-shaped member that protrudes forward from the working machine in the direction of travel, is installed behind the position of the tires of the traveling machine, and is formed on the surface of the field formed by the passing of the tires of the traveling machine. Backfill the recessed part with soil (bring the soil together) to alleviate the unevenness of the soil.

For example, Patent Literature 1 discloses a puddling machine provided with a soil gathering plate for gathering (backfilling) soil in a recess formed by passage of a tire of a tractor. In the earth gathering plate disclosed in Patent Document 1, the plate-like portion 53 is inclined with respect to the shaft portion 51, and a notch 53c is formed at one corner of the plate-like portion 53, and in a plan view, It has a substantially rectangular shape whose longitudinal direction is the vertical direction.

JP 2012-200174 A

However, the soil gathering plate disclosed in Patent Literature 1 has a problem that the amount of soil pushed away is insufficient, and the performance of erasing soil by gathering soil into recessed portions such as tire marks is not sufficient.

SUMMARY OF THE INVENTION The present invention has been made in view of such problems, and provides a work machine equipped with a soil gathering plate capable of gathering a sufficient amount of soil into recessed portions such as tire marks and having improved performance for erasing marks. With the goal.

A working machine according to one embodiment of the present invention is mounted on the rear part of a traveling machine body, and while rotating a tilling rotor, advances as the traveling machine machine moves forward to cultivate a field, and when the traveling machine machine passes through, the field surface is plowed. A work machine provided with a soil gathering plate capable of gathering soil in a recess formed in the work machine, wherein the soil gathering plate has a plate-like portion for gathering soil, and the plate-like portion is attached to the work machine In the folded state, the outer side portion forms an acute angle with respect to the horizontal plane in the traveling direction of the traveling machine body.

In another aspect, the plate-like portion may have an acute angle with respect to a horizontal plane in the traveling direction of the traveling body when the plate-like portion is attached to the work machine.

In another aspect, the plate-like portion may have an acute angle with respect to a vertical plane in the traveling direction of the traveling machine body in a state where the plate-like portion is mounted on the work machine.

In another aspect, the plate-like portion has linear cutouts formed at the inner and outer ends of the lower side thereof when the plate-like portion is attached to the work machine, and the outer end of the lower side is formed with linear cutouts. A cutout may constitute said outer side.

Moreover, in another aspect, the shovel board may include a handle part extending from the upper part of the plate-like part.

In another aspect, the soil gathering plate may have a convex portion on the surface on which the soil gathering work is performed.

In another aspect, two earth gathering plates may be provided adjacent to each other so as to be positioned on the left and right sides of the recess, and the earth gathering surfaces of the two earth gathering plates may face each other.

In another aspect, the tilling rotor has a large number of working tines, and at least one of the large number of working tines has a straight vertical blade portion that is substantially perpendicular to the rotary shaft of the tilling rotor. , a horizontal blade portion extending from the vertical blade portion is a shovel having a shape substantially perpendicular to the vertical blade portion, and the shovel claw is provided on the side of the recess, The extended horizontal blade portion may be arranged to face the concave portion.

According to the working machine of the present invention, it is possible to provide a working machine equipped with a soil baffle plate capable of gathering a sufficient amount of soil into recessed portions such as tire marks and improving the performance of erasing the marks.

BRIEF DESCRIPTION OF THE DRAWINGS It is a top view which shows the whole structure of the working machine which concerns on one Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a side view which shows the whole structure of the working machine which concerns on one Embodiment of this invention. FIG. 4 is a partial explanatory view showing the earth gathering portion attached to the working machine according to the embodiment of the present invention; Fig. 3(a) is a top view of the earth gathering part, Fig. 3(b) is a plan view seen from direction A in Fig. 3(a), and Fig. 3(c) is a plane seen from direction C in Fig. 3(a). FIG. 3(d) is a plan view seen from direction B in FIG. 3(a). It is a figure which shows the earthing board with which the work machine which concerns on one Embodiment of this invention is mounted|worn. FIG. 4(a) is a side view of the shovel, and FIG. 3(b) is a plan view of the shovel. It is a figure which shows the earthing board with which the work machine which concerns on one Embodiment of this invention is mounted|worn. FIG. 5(a) is a side view of the shovel board, FIG. 5(b) is a plan view seen from direction A in FIG. 5(a), and FIG. 5(c) is a plan view seen from direction B in FIG. 5(a). It is a diagram. FIG. 4 is a partial explanatory view showing the earth gathering portion attached to the working machine according to the embodiment of the present invention; Fig. 6(a) is a top view of the shovel board, Fig. 6(b) is a plan view seen from direction A in Fig. 6(a), and Fig. 6(c) is a plane seen from direction C in Fig. 6(a). FIG. 6(d) is a plan view seen from direction B in FIG. 6(a). It is a figure which shows the earthing board with which the work machine which concerns on one Embodiment of this invention is mounted|worn. FIG. 7(a) is a side view of the shovel, and FIG. 7(b) is a plan view of the shovel. It is a figure which shows the earthing board with which the work machine which concerns on one Embodiment of this invention is mounted|worn. FIG. 8(a) is a side view of a shovel board in one embodiment of the present invention, FIG. 8(b) is a plan view seen from direction A in FIG. 8(a), and FIG. 8(c) is FIG. 5(a). 1 is a plan view seen from the direction B of FIG.

A work machine according to the present invention will be described below with reference to the drawings. However, the work machine of the present invention can be implemented in many different modes, and should not be construed as being limited to the descriptions of the embodiments 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 description thereof will be omitted. Also, for convenience of explanation, the terms upward (top) and downward (lower) are used in the description, and the terms upward (upper) and downward (lower) respectively indicate directions in which the working machine is in a working state. Similarly, the terms forward (front side) and rearward (rear side) will be used for explanation, but forward (front side) indicates the direction of the traveling machine that tows the working machine with respect to the working machine, and rearward (rear side) indicates the direction of the machine. Indicates the direction of the work implement relative to the traveling machine.

<Embodiment 1>
1 to 4, the overall construction of the working machine and the construction of the shovel board according to Embodiment 1 of the present invention will be described. A working machine according to Embodiment 1 of the present invention is a working machine, such as a tiller or a puddler, which is connected to the rear part of a traveling machine such as a tractor, and which plows or agitates soil by rotating working claws. may In Embodiment 1, the configuration of the present invention will be described using a puddling machine as an example of a working machine. may In particular, in the first embodiment, an example in which left and right working bodies are provided on both sides of a working machine main body so as to be foldable and unfoldable will be described.

[Configuration of work machine 10]
FIG. 1 is a top view showing the overall construction of a work machine according to one embodiment of the present invention. Moreover, FIG. 2 is a side view showing the overall configuration of the working machine according to one embodiment of the present invention. As shown in FIGS. 1 and 2 , the working machine 10 according to Embodiment 1 has a machine body 5 , a working section 100 , an extended working section 200 , a leveler extending section 510 , a rotor section 600 and an earth gathering section 700 .

The machine body 5 includes a main frame 3 extending in the left-right direction of the working machine. A tilling rotor (not shown) to which a large number of working claws 610 are attached is rotatably supported between the lower portion of the side frame 9 and the side frame 9 .

The working unit 100 has a shield cover 110 , a leveling body 120 and a leveler 130 . The shield cover 110 and the ground leveling member 120 are connected to each other by using the connecting portion 122 as an axis of rotational movement (rotating axis). Further, the ground leveling body 120 and the leveler 130 are connected with a connecting portion 132 as a rotation axis. The ground leveling body 120 suppresses the scattered matter scattered by the operation of the rotor portion 600 from being released to the outside. Also, the leveling body 120 and the leveler 130 level the soil plowed by the operation of the rotor section 600 (see FIG. 2). The shield cover 110 is provided at a position covering the upper side of the rotor portion 600 .

The extension working part 200 is provided at both left and right ends of the working part 100, and is capable of switching between a stored state (not shown) in which the working part 100 is folded upward and a working state in which it is unfolded as shown in FIG. It is connected to the working section 100 .

The extension working part 200 has an extension shield cover 210 , an extension leveling body 220 and an extension leveler 230 like the working part 100 . The extension shield cover 210 is provided above the work rotor provided corresponding to the extension work portion 200 in the rotor portion 600 that rotates the work claw 610 (see FIG. 2). The extended ground leveling body 220 is provided behind the work rotor, and is connected to the extended shield cover 210 so as to be rotatable about a connecting portion 222 . The extension leveler 230 is provided behind the work rotor, and is connected to the extension leveling body 220 so as to be rotatable about a connecting portion 232 as an axis. The extended ground leveling body 220 is interlocked with the ground leveling body 120 and suppresses the scattered matter scattered by the operation of the rotor part 600 from being released to the outside. Further, the extension leveler 230 is interlocked with the leveler 130 to level the soil plowed by the operation of the rotor section 600 .

At the end of the extension leveler 230, a leveler extension 510 is provided to further increase the width of the ground that can be leveled. Leveler extension 510 is pivotally connected to extension leveler 230 . Further, the leveler extension part 510 extends (has a length) in a direction inclined with respect to the extension direction of the leveler 130 and the extended leveler 230 .

As shown in FIG. 2, the rotor section 600 rotatably supports a tilling rotor (not shown) having a large number of working claws 610 attached between the transmission frame (chain case) 620 and the lower portion of the side frame 9 . It is A large number of working claws 610 attached to the tilling rotor are rotated in a predetermined direction by power transmitted through a transmission mechanism in a transmission frame (chain case) 620, and act on the soil to plow or agitate the soil. . In addition, in FIG. 2 , the range in which the working claw 610 rotates is shown as a rotation range 612 .

As shown in FIG. 1, an earth gathering portion 700 is provided on the side of the traveling machine of the shield cover 110 . The mulching portion 700 has a mulching plate 710, a mulching plate mounting member 720, a support member 730, a mulching portion mounting member 740, and a grip 750 (see FIG. 3). When the working machine 10 is in use, the earth gathering part 700 is installed so as to match the position of the wheels of the traveling machine, and alleviates the unevenness of the earth due to concave portions such as ruts.

[Overall Structure of Earth Gathering Part 700]
The configuration of the earth gathering portion 700 will be described in detail with reference to FIGS. 3 and 4. FIG. First, the overall structure of the earth gathering portion 700 will be described with reference to FIG. FIG. 3 is a partial explanatory view showing the earth gathering portion attached to the working machine according to the embodiment of the present invention. Fig. 3(a) is a top view of the earth gathering part, Fig. 3(b) is a plan view seen from direction A in Fig. 3(a), and Fig. 3(c) is a plane seen from direction C in Fig. 3(a). FIG. 3(d) is a plan view seen from direction B in FIG. 3(a).

As shown in FIG. 3(d), the mulching plate 710a has a mulching surface 760a for gathering soil, and as shown in FIGS. It is tilted and fixed on the back side.

Further, as shown in FIG. 3B, a support member 730 is attached by bolts or the like to the opposite side of the earth gathering plate mounting member 720a from the side fixed to the earth gathering plate 710a. A plurality of holes 733 are arranged in the vertical direction in the support member 730 .

A mulching portion mounting member 740 is fitted to the outside of the support member 730, and the mulching portion mounting member 740 is provided with a hole 744 through which a lock pin (not shown) passes. The holes 744 provided in the earth gathering portion mounting member 740 are overlapped with the respective positions of the plurality of holes 733 provided in the support member 730 by sliding the earth collecting portion mounting member 740 along the vertical direction of the support member 730. is formed as The mulching portion mounting member 740 and the support member 730 are arranged such that a hole 744 provided in the mulching portion mounting member 740 is aligned with one of holes 733 provided in the support member 730, and both holes are penetrated by lock pins. fixed by doing

In this manner, depending on which position of the plurality of holes 733 provided in the support member 730 is aligned, the vertical position of the mulching plate 710a with respect to the work machine can be changed. The depth at which 710a acts on ruts or the like on the field surface can be adjusted.

In addition, a slide hole 748 formed by a U-shaped bolt 741 and a nut 742 is provided in the earth gathering portion mounting portion 740 , and the slide hole 748 is formed in a square pipe-shaped frame provided in the shield cover of the working machine 10 . It is slidably fitted to the outer circumference and fixed to the work machine 10 .

As described above, the slide hole 748 of the earth collecting portion mounting member 740 is slidably fitted to the outside of the square pipe-shaped frame provided in the shield cover, so that the earth collecting portion 700a can move along the frame to move the working machine. in the width direction (direction perpendicular to the travel direction of the traveling machine).

As a result, since the position of the shovel plate 710a can be changed in the width direction of the working machine, it is possible to deal with various traveling machines having different tire positions and tire widths, and appropriate adjustment is possible according to the tires of each traveling machine. It is possible to move the shovel plate 710a to the desired position.

[Planar shape of earthing board]
Next, the planar shape of the earthing board will be described with reference to FIG. FIG. 4 is a view showing a shovel included in the shovel shown in FIG. 3; FIG. 4(a) is a side view of the shovel, and FIG. 4(b) is a plan view of the shovel. As shown in FIG. 4, the shovel board 710a is a thin plate-like member that is substantially rectangular in plan view. As shown in FIG. 4(b), the soil gathering plate 710a as a whole constitutes a plate-like portion 711 (711a) for gathering soil.

The earth gathering plate 710a (plate-shaped portion 711a) has a linear notch C11 formed at the inner (downstream side of the soil flow) end of the lower side 717a when attached to the work machine, and the outer side (soil flow side) of the lower side 717a. A linear notch C12 is formed at the end of the upstream side of the flow. A linear notch C12 formed in the outer end of the lower side 717a constitutes a side portion 718a corresponding to the outer side surface (see FIG. 3(b)) of the earth gathering plate 710a when mounted on the working machine.

By forming the notch C11 at the inner end portion of the lower side 717a of the earth gathering plate 710a (the plate-like portion 711a), the soil is likely to flow toward the inside (recess side) of the earth gathering plate 710a, and the soil is more effectively removed. can be sent.

In addition, in the planar shape of the earth gathering plate 710a, the angle R11 formed by the upper side 719 and the side portion 718a determines the inclination angle of the side portion 718a. The angle of inclination of the side portion 718a in the planar shape of the shovel plate 710a is the angle formed by the side portion 718 and the horizontal plane in the traveling direction of the traveling machine body when the shovel plate 710a is attached to the working machine, as will be described later. It is formed to have a predetermined angle.

In addition, in the planar shape of the soil gathering plate 710a, if the overall value W11 of the soil gathering plate 710a (the plate-shaped portion 711a) is small, the amount of soil that is shed by the soil gathering plate 710a (the plate-shaped portion 711a) is insufficient, and the mark erasing performance deteriorates. It turned out to do. The work machine according to the present invention secures a sufficient flow rate of soil by increasing the width W11 of the soil gathering plate 710a (plate-shaped portion 711a) as large as possible while avoiding interference with other members. , the mark erasing performance can be improved. Specifically, the width W11 in FIG. 4(b) is preferably about 300 mm.

Similarly, in the planar shape of the mulching plate 710a, if the lower part W12 of the mulching plate 710a (plate-shaped portion 711a) is small, the amount of soil flowing below the mulching plate 710a (plate-shaped portion 711a) is insufficient, and the trace is erased. It was found that the performance deteriorated. In the working machine according to the present invention, the lower part W12 of the earth gathering plate 710a (plate-shaped part 711a) is increased as much as possible while ensuring the angle of the side part 718 described later, thereby increasing the flow rate of the soil in the lower layer. can be secured, and the mark erasing performance can be improved.

[Structure of earthing plate 710a attached to working machine]
With reference to FIG. 3(a) again, the configuration of the shovel plate 710a attached to the working machine will be described. Referring to FIG. 3(a), when the shoring plate 710a is attached to the work machine, the shoring surface 760a is a vertical plane in the traveling direction of the traveling machine body (the direction indicated by arrow D in FIG. 3(a)). form an acute angle to Specifically, in FIG. 3(a), the earth gathering plate mounting member 720a and the earth gathering plate 710a are arranged so that the angle θ11 between the earth gathering surface 760a and the vertical plane in the traveling direction of the traveling machine body is about 45°. Tilt and fixed.

On the other hand, when the angle θ11 between the shoveling surface 760a and the vertical plane in the traveling direction of the traveling machine body is about 90° (when the shoveling surface 760a is substantially parallel to the width direction of the working machine), However, it has been found that the earth gathering surface pushes the soil forward, causing the soil to stagnate in front of the earth gathering plate, making it impossible to bring a sufficient amount of soil to the concave portion.

When the angle θ11 formed by the earth gathering surface 760a and the vertical plane in the traveling direction of the traveling machine body is an acute angle as in the working machine according to the present invention, the earth gathering surface 760a gathers soil inward (recess side). It was found that the soil flows inward (toward the concave portion) along the soil gathering plate 710a on the back surface of the soil gathering surface 760a. As a result, it is possible to generate a flow of soil that flows inward (toward the concave portion) not only on the side of the earth gathering surface 760a of the earth gathering plate 710a, but also on the back surface of the earth gathering surface 760a, so that earth gathering can be carried out more effectively. It has been found that these effects are exhibited more effectively at a typical puddling speed (2 to 5 km/h) associated with running a tractor, especially when θ11 is about 45°.

Further, referring to FIG. 3(b), when the shoring plate 710a is attached to the work machine, the shoring surface 760a is positioned above the moving direction of the traveling body (the direction indicated by the arrow D in FIG. 3(b)). Makes an acute angle with the horizontal plane. Specifically, in FIG. 3(b), the shoring plate mounting member 720a and the shoring plate 710a are inclined so that the angle θ12 between the shoring surface 760a and the horizontal plane in the traveling direction of the traveling machine body is approximately 60°. has been fixed.

On the other hand, when the angle θ12 between the shoveling surface 760a and the horizontal plane in the traveling direction of the traveling machine body is about 90° (when the shoveling surface 760a is substantially vertical), the shoveling surface pushes the soil forward. It was found that the pushing out caused the soil to stay in front of the earth shredding plate, making it impossible to gather a sufficient amount of soil in the recess.

When the angle θ12 formed by the earth-moving surface 760a and the horizontal plane in the traveling direction of the traveling machine body is an acute angle, as in the working machine according to the present invention, the earth-moving surface 760a can push the soil downward. It is possible to generate a flow of soil that draws the bottom of the recess.

As a result, it is possible to prevent the soil from being pushed forward by the earth gathering plate 710a and improve the performance of erasing marks, and also improve the performance of plowing rice straw or the like in the soil into the soil. In particular, it has been found that these effects are exhibited more effectively when θ12 is about 60°.

Further, referring to FIG. 3(b), when the shovel plate 710a is attached to the working machine, the side portion 718a forming the notch on the outer side of the lower side extends in the traveling direction of the traveling machine body (in FIG. 3(b)). direction indicated by arrow D). Specifically, in FIG. 3(b), the planar shape of the shovel plate 710a is defined so that the angle θ13 between the side portion 718a of the shovel plate 710a and the horizontal plane in the traveling direction of the traveling body is about 50°. ing.

On the other hand, when the angle θ13 between the side portion 718a and the horizontal plane in the traveling direction of the traveling machine body is about 90° (when the side portion 718a is substantially vertical), the outside of the lower side of the earthing plate 710a It was found that the plowing performance became insufficient due to the drag of rice straw and the like at the corners.

When the angle θ13 formed between the side portion 718a and the horizontal plane in the traveling direction of the traveling machine body is an acute angle as in the working machine according to the present invention, rice straw or the like is dragged at the outer corners of the lower side of the earth gathering plate 710a. can be reduced.

As a result, it is possible to improve the performance of erasing marks by the soil gathering plate 710a, and also improve the performance of plowing rice straw or the like into the soil in a field. In particular, it has been found that these effects are exhibited more effectively when θ13 is about 50°.

[Combination of soil gathering plate and straight nail (earth gathering nail)]
Furthermore, among the many working claws 610 attached to the tilling rotor together with the soil gathering plate 710a, the working claw 610 positioned on the side of a recess such as a tire mark has a straight vertical blade portion substantially orthogonal to the tilling shaft. A straight claw (earthrowing claw) having a shape in which a horizontal blade portion extending from the vertical blade portion is substantially orthogonal to the vertical blade portion may be used.

At least one straight claw (not shown) is provided on the side of a recess such as a tire mark, and is arranged so that the horizontal blade extending from the vertical blade faces the recess. Note that if the straight claws are arranged on both the left and right sides so as to sandwich a concave portion such as a tire mark, the mark erasing performance is further improved.

By using the straight tines together with the mulching plate 710a, the mulching plate 710a can move the soil on the surface of the farm field to backfill the concave portion, and the straight tines can move the soil of the lower layer of the field that cannot be moved by the mulching plate 710a. By being able to move, the mark erasing performance can be further improved.

[Distance between the shovel plate and the work claw]
Furthermore, if the distance between the earth gathering plate 710a and the working claw 610 (the distance between the earth gathering plate 710a and the rotation range 612 of the working claw 610) is too short, soil will accumulate between the earth gathering plate 710a and the working claw 610. However, it was found that the amount of soil backfilled in the depression was insufficient.

In the working machine according to the present invention, by setting the distance between the earth gathering plate 710a and the working claw 610 (the distance between the earth gathering plate 710a and the rotation range 612 of the working claw 610) to about 50 mm, the earth gathering plate 710a and the working claw 610 Good soil flow can be formed in which soil does not stagnate between 610 .

As described above, according to the working machine 10 according to the first embodiment of the present invention, it is possible to provide a working machine equipped with a soil baffle plate capable of gathering a sufficient amount of soil into recessed portions such as tire marks and improving the performance of erasing marks. can do.

<Modification of Embodiment 1>
A modification of the working machine 10 described in the first embodiment will be described with reference to FIG. The following modified examples differ from the first embodiment mainly in the shape of the earthing board.

FIG. 5 is a diagram showing a shovel attached to the work machine according to one embodiment of the present invention. FIG. 5(a) is a side view of the shovel board, FIG. 5(b) is a plan view seen from direction A in FIG. 5(a), and FIG. 5(c) is a plan view seen from direction B in FIG. 5(a). It is a diagram.

As shown in FIG. 5(b), on the surface of the earth gathering plate 710b (plate-shaped part 711b), there is a convex portion which is convex toward the earth gathering surface 760a side (the plane side viewed from the direction A in FIG. 5(a)). 712b are formed. As shown in FIG. 5(c), a concave portion 714b is formed along a position corresponding to the convex portion 712b on the rear surface of the earth collecting surface 760a of the earth gathering plate 710b (plate-like portion 711b). In FIG. 5(b), the projecting portion 712b is provided along the direction of soil flow formed by the earth gathering plate 710b (the plate-like portion 711b).

Since the rest of the configuration is the same as that of the first embodiment, repeated description will be omitted.

In the work machine according to the present embodiment, the surface of the soil gathering plate 710b (the plate-shaped portion 711b) is formed with a convex portion 712b provided along the direction of soil flow. It is possible to assist the flow of soil and improve the rigidity of the soil gathering plate 710b (plate-like portion 711b) as a rib.

<Embodiment 2>
Embodiment 2 will be described with reference to FIGS. 6 and 7. FIG. Embodiment 2 below is different from Embodiment 1 mainly in the shape of the earthing plate.

FIG. 6 is a partial explanatory view showing the earth gathering portion attached to the working machine according to the embodiment of the present invention. Fig. 6(a) is a top view of the shovel board, Fig. 6(b) is a plan view seen from direction A in Fig. 6(a), and Fig. 6(c) is a plane seen from direction C in Fig. 6(a). FIG. 6(d) is a plan view seen from direction B in FIG. 6(a).

FIG. 7 is a diagram showing a mulching plate included in the mulching portion shown in FIG. 6 . FIG. 7(a) is a side view of the shovel, and FIG. 7(b) is a plan view of the shovel.

As shown in FIG. 7(b), in Embodiment 2, the soil gathering plate 710c has a plate-like portion 711c for gathering soil and a handle portion 713 extending from the upper portion of the plate-like portion 711c. The handle portion 713 is formed with a hole 715 for gripping the earthing plate 710c.

Since the mulching plate 710c has the handle portion 713, the mulching plate 710c can be easily handled when the mulching plate mounting member 720c of the mulching plate 710c is removed from the support member 730, which is convenient.

In addition, the shape of the plate-like portion 711c of the earth gathering plate 710c shown in FIG. 7B is slightly different from the earth gathering plate 710a of the first embodiment. Since R11, W11, and W12 correspond to C21, C22, R21, W21, and W22, respectively, of the shovel plate 710c, the description and effects of these configurations are the same as those of the first embodiment.

Also, in the configuration of the earth gathering portion 700c mounted on the working machine shown in FIG. Since they correspond, the explanations and operational effects of these configurations are the same as those of the first embodiment.

In FIG. 6, only the mulching plate 710c and the mulching plate mounting member 720c of the mulching portion 700c are shown. may

Since the rest of the configuration is the same as that of the first embodiment, repeated description will be omitted.

<Modification of Embodiment 2>
A modification of the working machine 10 described in the second embodiment will be described with reference to FIG. The following modified examples differ from the second embodiment mainly in the shape of the earthing plate.

FIG. 8 is a diagram showing a shovel attached to the work machine according to one embodiment of the present invention. FIG. 8(a) is a side view of a shovel board in one embodiment of the present invention, FIG. 8(b) is a plan view seen from direction A in FIG. 8(a), and FIG. 8(c) is FIG. 5(a). is a plan view seen from the B direction.

As shown in FIG. 8(b), on the surface of the earth gathering plate 710d (plate-shaped part 711d), there is a convex portion which is convex toward the earth gathering surface 760 side (plane side viewed from direction A in FIG. 8(a)). 712d are formed. As shown in FIG. 8(c), a concave portion 714d is formed along a position corresponding to the convex portion 712d on the rear surface of the earth collecting surface 760 of the earth gathering plate 710d (plate-like portion 711d). In FIG. 5(b), the convex portion 712d is provided along the direction of soil flow formed by the earth gathering plate 710d (the plate-like portion 711d).

Since the rest of the configuration is the same as that of the second embodiment, repeated description is omitted.

In the work machine according to the present embodiment, the surface of the earth gathering plate 710d (plate-shaped part 711d) is formed with a projecting portion 712d provided along the direction of soil flow. It is possible to assist the flow of soil and improve the rigidity of the soil gathering plate 710d (plate-like portion 711d) as a rib.

As described above, the present invention has been described with reference to the drawings, but the present invention is not limited to the above-described embodiments, and can be modified as appropriate without departing from the scope of the present invention.

10: Working machine 100: Working part 110: Shield cover 120: Leveling body 122, 132: Connection part 130: Leveler 200: Extension working part 210: Extension shield cover 220: Extension ground leveling body 230 : extension leveler 510: leveler extension part 700: mulching part 710: mulching board 711: plate-like part 712: convex part 713: handle part 714: concave part 720: mulching board mounting member 730: support Member 740: Earth gathering part mounting member 750: Grip 760: Earth gathering surface 600: Rotor part 610: Working claw

Claims (4)

A soil baffle plate attached to a working machine that plows or agitates soil by rotating working claws,
The soil gathering plate has a plate-like portion for gathering soil,
the plate-like portion has an outer side portion forming an acute angle with respect to a horizontal plane in the traveling direction of the working machine when mounted on the working machine;
The earthing surface of the plate-shaped portion has linear notches at the inner and outer ends of the lower side in plan view, respectively, and the inner angle formed by the inner notch and the lower side is the outer notch and the A baffle board that is larger than the inner angle formed by the bottom side . 2. The earth gathering plate according to claim 1, wherein said plate-like part has an earth gathering surface on which earth gathering work is performed forming an acute angle with respect to a horizontal plane in the traveling direction of said work machine when it is attached to said work machine. 3. The shoveling according to claim 1, wherein said plate-like portion has a shoveling surface on which shoveling work is performed forming an acute angle with respect to a vertical plane in the traveling direction of said working machine when it is attached to said working machine. board. The earth gathering board according to any one of claims 1 to 3, wherein said earth gathering board has a convex portion on a surface on which earth gathering work is carried out.

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