JP6980306B2 - Earth gathering board - Google Patents

Description

The present invention relates to a working machine. In particular, it relates to a tilling work machine attached to the rear part of a tractor to till a field.

Such a cultivator includes, for example, a cultivator that cultivates a field by rotating a plurality of cultivators attached to a cultivator shaft, and a cultivator that is provided behind the cultivator to level the cultivated soil. There is a puddling work machine having a body and a leveler provided at the rear of the ground preparation body, which is rotatably supported in the vertical direction with respect to the ground preparation body and is in contact with the surface of the field.

Such a puddling work machine performs the work of plowing and leveling the field surface after the tractor (traveling machine) has passed, and the soil on the field surface, which is the work area, is pushed out by the passage of the tractor tires. Recesses (tire marks) may be formed and uneven soil may occur. Due to the unevenness of the soil due to the tire marks, the finishing of the leveling work by the puddling work machine may be insufficient.

Therefore, there is known a working machine in which a soil gathering plate is provided on the front side (traveling machine side) of the working machine in the traveling direction. The soil gathering plate is a plate-shaped member that protrudes from the working machine toward the front side in the traveling direction, and is installed behind the position of the tires of the traveling machine and is formed on the surface of the field formed by the passage of the tires of the traveling machine. The soil is backfilled in the recesses (pulling the soil) to alleviate the unevenness of the soil.

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

Japanese Unexamined Patent Publication No. 2012-200174

However, the soil gathering plate disclosed in Patent Document 1 has a problem that the amount of soil that is washed away is insufficient and the trace erasing performance that attracts soil to recesses such as tire traces is not sufficient.

The present invention has been made in view of such a problem, and provides a working machine provided with a soil gathering plate capable of attracting a sufficient amount of soil to recesses such as tire marks and having improved trace erasing performance. With the goal.

The working machine according to the embodiment of the present invention is mounted on the rear part of the traveling machine, and while rotating the tilling rotor, it advances along with the forward traveling of the traveling machine to cultivate the field, and the field surface is cultivated by passing through the traveling machine. It is a working machine provided with an earth gathering plate capable of attracting soil to the recess formed in the above, and the earth gathering plate has a plate-shaped portion for attracting soil, and the plate-shaped portion is attached to the working machine. In this state, the outer side portion is characterized in that it forms a sharp angle with respect to the horizontal plane in the traveling direction of the traveling machine body.

Further, in another aspect, the plate-shaped portion may have a soil gathering surface on which the soil gathering work is performed in a state of being mounted on the working machine, at an acute angle with respect to a horizontal plane in the traveling direction of the traveling machine.

Further, in another aspect, the plate-shaped portion may have an acute angle with respect to the vertical surface of the traveling machine in the traveling direction of the soil gathering surface in which the soil gathering work is performed while the plate-shaped portion is mounted on the working machine.

Further, in another embodiment, the plate-shaped portion is formed at the outer end portion of the lower side with linear notches formed at the inner and outer ends of the lower side, respectively, in a state of being mounted on the working machine. The notch may form the outer side portion.

Further, in another aspect, the soil gathering plate may include a handle portion extended to the upper part of the plate-shaped portion.

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

Further, in another aspect, the soil gathering plates may be provided adjacent to each other so as to be located on the left and right sides of the recess, and the soil gathering surfaces of the two soil gathering plates may face each other.

Further, in another embodiment, the tiller rotor is provided with a large number of working claws, and at least one of the large number of working claws has a straight blade portion having a vertical blade portion substantially orthogonal to the rotation axis of the tiller rotor. The horizontal blade portion extending from the vertical blade portion is a soil gathering claw having a shape substantially orthogonal to the vertical blade portion, and the soil gathering claw is provided on the side of the recess and is provided from the vertical blade portion. The extending horizontal blade portion may be arranged so as to face the concave portion side.

According to the working machine according to the present invention, it is possible to provide a working machine provided with a soil gathering plate which can attract a sufficient amount of soil to a recess such as a tire mark and has improved trace erasing performance.

It is a top view which shows the whole structure of the working machine which concerns on one Embodiment of this invention. It is a side view which shows the whole structure of the working machine which concerns on one Embodiment of this invention. It is a partial explanatory view which shows the earth gathering part in the state which is attached to the work machine which concerns on one Embodiment of this invention. 3 (a) is a top view of the soil gathering portion, FIG. 3 (b) is a plan view seen from the direction A of FIG. 3 (a), and FIG. 3 (c) is a plan view seen from the direction C of FIG. 3 (a). FIG. 3 (d) is a plan view seen from the direction B of FIG. 3 (a). It is a figure which shows the earth gathering board attached to the work machine which concerns on one Embodiment of this invention. FIG. 4A is a side view of the soil gathering plate, and FIG. 3B is a plan view of the soil gathering plate. It is a figure which shows the earth gathering board attached to the work machine which concerns on one Embodiment of this invention. 5 (a) is a side view of the soil gathering plate, FIG. 5 (b) is a plan view seen from the direction A of FIG. 5 (a), and FIG. 5 (c) is a plan view seen from the direction B of FIG. 5 (a). It is a figure. It is a partial explanatory view which shows the earth gathering part in the state which is attached to the work machine which concerns on one Embodiment of this invention. 6 (a) is a top view of the soil gathering plate, FIG. 6 (b) is a plan view seen from the direction A of FIG. 6 (a), and FIG. 6 (c) is a plan view seen from the direction C of FIG. 6 (a). FIG. 6 (d) is a plan view seen from the direction B of FIG. 6 (a). It is a figure which shows the earth gathering board attached to the work machine which concerns on one Embodiment of this invention. FIG. 7A is a side view of the soil gathering plate, and FIG. 7B is a plan view of the soil gathering plate. It is a figure which shows the earth gathering board attached to the work machine which concerns on one Embodiment of this invention. 8 (a) is a side view of the soil gathering plate in one embodiment of the present invention, FIG. 8 (b) is a plan view seen from the direction A of FIG. 8 (a), and FIG. 8 (c) is FIG. 5 (a). It is a plan view seen from the B direction of.

Hereinafter, the working machine according to the present invention will be described with reference to the drawings. However, the working machine of the present invention can be implemented in many different modes, and is not construed as being limited to the description of the embodiments shown below. In the drawings referred to in this embodiment, the same parts or parts having similar functions are designated by the same reference numerals, and the description thereof will be omitted. Further, for convenience of explanation, the terms upper (upper) and lower (lower) will be used, but the upper (upper) and lower (lower) indicate the orientation of the working machine in the working state, respectively. Similarly, although the explanation will be made using the terms front (front side) or rear (rear side), the front (front side) indicates the direction of the traveling machine that pulls the work machine with respect to the work machine, and the rear (rear side) indicates the direction of the traveling machine. The direction of the working machine with respect to the traveling machine is shown.

<Embodiment 1>
The overall configuration of the working machine and the configuration of the soil gathering plate according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. The working machine according to the first embodiment of the present invention is a working machine, such as a tiller or a puddling machine, which is connected to the rear part of a traveling machine such as a tractor and cultivates or stirs soil by rotating a working claw. You may. In the first embodiment, the configuration of the present invention will be described using a puddling machine as an example of the working machine, but the working machine according to the present invention may be a cultivator, and is a cultivator or a working machine other than the puddling machine. You may. In particular, in the first embodiment, the left and right working bodies provided on both sides of the working machine main body so as to be foldable and expandable will be described as an example.

[Structure of working machine 10]
FIG. 1 is a top view showing an overall configuration of a working machine according to an embodiment of the present invention. Further, FIG. 2 is a side view showing the overall configuration of the working machine according to the embodiment of the present invention. As shown in FIGS. 1 and 2, the working machine 10 according to the first embodiment has a machine body 5, a working unit 100, an extension working unit 200, a leveler expansion unit 510, a rotor unit 600, and a soil gathering unit 700.

The machine body 5 includes a main frame 3 extending in the left-right direction of the work machine, and a transmission frame (chain case) 620 and a side frame 9 are vertically installed at both left and right ends of the main frame 3, and a transmission frame (chain case) 620 is provided. A tiller rotor (not shown) to which a large number of work claws 610 are attached is rotatably supported between the lower part and the lower part of 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 body 120 are connected to each other with the connecting portion 122 as an axis (rotational axis) for rotational movement. Further, the ground leveling body 120 and the leveler 130 are connected with the connecting portion 132 as a rotation axis. The leveling body 120 suppresses the scattered matter scattered by the work of the rotor portion 600 from being released to the outside. Further, the leveling body 120 and the leveler 130 level the soil cultivated by the work of the rotor portion 600 (see FIG. 2). The shield cover 110 is provided at a position that covers the upper part of the rotor portion 600.

The extension work unit 200 is provided at both left and right ends of the work unit 100, and can switch between a stored state (not shown) folded above the work unit 100 and an expanded work state as shown in FIG. It is connected to the working unit 100.

The extension work unit 200 has an extension shield cover 210, an extension leveling body 220, and an extension leveler 230, similarly to the work unit 100. The extension shield cover 210 is provided above the work rotor provided corresponding to the extension work portion 200 of the rotor portion 600 for rotating the work claw 610 (see FIG. 2). The extension leveling body 220 is provided behind the work rotor and is rotatably connected to the extension shield cover 210 with the connection portion 222 as an axis. The extension leveler 230 is provided behind the work rotor and is rotatably connected to the extension leveling body 220 with the connection portion 232 as an axis. The extended ground leveling body 220 is interlocked with the ground leveling body 120, and suppresses the release of the scattered matter scattered by the work of the rotor unit 600 to the outside. Further, the extended leveler 230 is interlocked with the leveler 130 to level the soil cultivated by the work of the rotor portion 600.

At the end of the extension leveler 230, a leveler extension 510 that can further widen the width that can be leveled is provided. The leveler extension 510 is rotatably connected to the extension leveler 230. Further, the leveler expansion portion 510 extends (has a longitudinal direction) in a direction inclined with respect to the extension direction of the leveler 130 and the extension leveler 230.

As shown in FIG. 2, the rotor portion 600 is rotatably supported by a tiller rotor (not shown) to which a large number of work claws 610 are attached between the transmission frame (chain case) 620 and the lower portion of the side frame 9. Has been done. A large number of work claws 610 attached to the tiller rotor rotate in a predetermined direction by the power transmitted through the transmission mechanism in the transmission frame (chain case) 620 and act on the soil to plow or stir the soil. .. In FIG. 2, the range in which the work claw 610 rotates is shown as the rotation range 612.

As shown in FIG. 1, a soil gathering portion 700 is provided on the traveling machine side of the shield cover 110. The soil gathering portion 700 has a soil gathering plate 710, a soil gathering plate mounting member 720, a support member 730, a soil gathering portion mounting member 740, and a grip 750 (see FIG. 3). The soil gathering portion 700 is installed according to the position of the wheels or the like of the traveling machine when the working machine 10 is used, and alleviates the unevenness of the soil due to the recesses such as ruts.

[Overall structure of soil gathering part 700]
The configuration of the soil gathering portion 700 will be described in detail with reference to FIGS. 3 and 4. First, the overall structure of the soil gathering portion 700 will be described with reference to FIG. FIG. 3 is a partial explanatory view showing a soil gathering portion in a state of being mounted on a working machine according to an embodiment of the present invention. 3 (a) is a top view of the soil gathering portion, FIG. 3 (b) is a plan view seen from the direction A of FIG. 3 (a), and FIG. 3 (c) is a plan view seen from the direction C of FIG. 3 (a). FIG. 3 (d) is a plan view seen from the direction B of FIG. 3 (a).

As shown in FIG. 3 (d), the soil gathering plate 710a has a soil gathering surface 760a, and as shown in FIGS. 3 (a) and 3 (b), the soil gathering plate mounting member 720a has a soil gathering surface 760a. It is fixed at an angle on the back side.

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

A soil gathering portion mounting member 740 is fitted to the outside of the support member 730, and the soil gathering portion mounting member 740 is provided with a hole 744 for penetrating a lock pin (not shown). The hole 744 provided in the soil gathering portion mounting member 740 overlaps with each position of the plurality of holes 733 provided in the support member 730 by sliding the soil gathering portion mounting member 740 along the vertical direction of the support member 730. It is formed like this. The soil gathering portion mounting member 740 and the support member 730 both penetrate the positions of the holes 744 provided in the soil gathering portion mounting member 740 to the positions of any of the holes 733 provided in the support member 730 with lock pins. It is fixed by doing.

In this way, the vertical position of the soil gathering plate 710a with respect to the working machine can be changed depending on which position of the plurality of holes 733 provided in the support member 730 is adjusted, and the soil gathering plate can be changed according to the field conditions and the purpose. The depth at which 710a acts on the ruts on the surface of the field can be adjusted.

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

In this way, the slide hole 748 of the soil gathering portion mounting member 740 is slidably fitted to the outside of the square pipe-shaped frame provided on the shield cover, so that the soil gathering portion 700a is a work machine along the frame. It is possible to move in the width direction (direction orthogonal to the traveling direction of the traveling machine).

As a result, the position of the soil gathering plate 710a can be changed in the width direction of the working machine, so that it can be applied to various traveling machines having different tire positions and tire widths, and is appropriate according to the tires of each running machine. The soil gathering plate 710a can be moved to any position.

[Plane shape of soil gathering plate]
Next, the plan shape of the soil gathering plate will be described with reference to FIG. FIG. 4 is a diagram showing a soil gathering plate included in the soil gathering portion shown in FIG. FIG. 4A is a side view of the soil gathering plate, and FIG. 4B is a plan view of the soil gathering plate. As shown in FIG. 4, the soil gathering plate 710a is a thin plate-shaped member having a substantially rectangular shape in a plan view. As shown in FIG. 4 (b), in the soil gathering plate 710a, the whole thereof constitutes a plate-shaped portion 711 (711a) for gathering soil.

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

By forming the notch C11 at the inner end of the lower side 717a of the soil gathering plate 710a (plate-shaped portion 711a), the soil flow to the inside (concave side) of the soil gathering plate 710a is likely to occur, and the soil is more effectively soiled. Can be brought together.

Further, in the planar shape of the soil 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. As will be described later, the inclination angle of the side portion 718a in the plane shape of the soil gathering 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 soil gathering plate 710a is attached to the work machine. It is formed so as to have a predetermined angle.

Further, in the planar shape of the soil gathering plate 710a, if the total fortune W11 of the soil gathering plate 710a (plate-shaped portion 711a) is small, the amount of soil flowing by the soil gathering plate 710a (plate-shaped portion 711a) is insufficient, and the trace erasing performance deteriorates. It turned out to be. The working machine according to the present invention secures a sufficient flow rate of soil by increasing the total fortune W11 of the soil gathering plate 710a (plate-shaped portion 711a) as large as possible while avoiding interference with other members. , The trace erasing performance can be improved. Specifically, it is preferable that the total fortune W11 in FIG. 4B is about 300 mm.

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

[Structure of soil gathering plate 710a when mounted on a work machine]
The configuration of the soil gathering plate 710a in a state of being mounted on the working machine will be described again with reference to FIG. 3A. Referring to FIG. 3A, when the soil gathering plate 710a is mounted on the working machine, the soil gathering surface 760a faces a vertical plane in the traveling direction of the traveling machine (direction indicated by an arrow D in FIG. 3A). Make an acute angle to. Specifically, in FIG. 3A, the soil gathering plate mounting member 720a and the soil gathering plate 710a are provided so that the angle θ11 between the soil gathering surface 760a and the vertical surface in the traveling direction of the traveling machine is about 45 °. It is tilted and fixed.

On the other hand, when the angle θ11 between the soil gathering surface 760a and the vertical surface in the traveling direction of the traveling machine is about 90 ° (when the soil gathering surface 760a is substantially parallel to the width direction of the working machine). It was found that the soil gathering surface pushed the soil forward, causing the soil to stay in front of the soil gathering plate, and it was not possible to attract a sufficient amount of soil to the recess.

When the angle θ11 between the soil gathering surface 760a and the vertical surface in the traveling direction of the traveling machine is an acute angle as in the working machine according to the present invention, the soil gathering surface 760a brings the soil inward (recessed side). It was found that the soil flows inward (recessed side) along the soil gathering plate 710a also on the back surface of the soil gathering surface 760a. As a result, the flow of soil flowing inward (recessed side) can be generated not only on the soil gathering surface 760a side of the soil gathering plate 710a but also on the back surface of the soil gathering surface 760a, and the soil gathering can be performed more effectively. It has been found that these effects are more exerted at a general puddling speed (2-5 km / h) associated with the running of the tractor, especially when θ11 is about 45 °.

Further, referring to FIG. 3B, when the soil gathering plate 710a is mounted on the working machine, the soil gathering surface 760a is on the traveling direction of the traveling machine (direction indicated by the arrow D in FIG. 3B). Makes an acute angle with respect to the horizontal plane. Specifically, in FIG. 3B, the soil gathering plate mounting member 720a and the soil gathering plate 710a are inclined so that the angle θ12 formed by the soil gathering surface 760a and the horizontal plane in the traveling direction of the traveling machine is about 60 °. And fixed.

On the other hand, when the angle θ12 between the soil gathering surface 760a and the horizontal plane in the traveling direction of the traveling machine is about 90 ° (when the soil gathering surface 760a is substantially vertical), the soil gathering surface moves the soil forward. It was found that the extruding caused the soil to stay in front of the soil gathering plate, and it was not possible to attract a sufficient amount of soil to the recesses.

When the angle θ12 between the soil gathering surface 760a and the horizontal plane in the traveling direction of the traveling machine is an acute angle as in the working machine according to the present invention, the soil gathering surface 760a can push the soil downward, so that the soil can be washed away. Can generate a flow of soil that moves the bottom of the recess.

As a result, it is possible to prevent the soil from being pushed out to the front of the soil gathering plate 710a and improve the trace erasing performance, and also to improve the plow-in performance of plowing rice straw or the like in the field into the soil. In particular, it has been found that these effects are more exerted when θ12 is about 60 °.

Further, referring to FIG. 3B, when the soil gathering plate 710a is mounted on the working machine, the side portion 718a constituting the outer notch on the lower side is in the traveling direction of the traveling machine body (FIG. 3B). It makes an acute angle with respect to the horizontal plane on the (direction indicated by arrow D). Specifically, in FIG. 3B, the plan shape of the soil gathering plate 710a is defined so that the angle θ13 formed by the side portion 718a of the soil gathering plate 710a and the horizontal plane in the traveling direction of the traveling machine 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 is about 90 ° (when the side portion 718a is substantially vertical), the outside of the lower side of the soil gathering plate 710a. It was found that the plow-in performance became insufficient due to the dragging of rice straw and the like at the corners.

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

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

[Combination of soil gathering board and straight nails (earth gathering nails)]
Further, among the many working claws 610 attached to the tilling rotor together with the soil gathering plate 710a, as the working claw 610 located on the side of the recess such as the tire mark, the vertical blade portion substantially orthogonal to the tilling axis has a straight shape. Therefore, a straight claw (claw) having a shape in which the 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 the concave portion such as a tire mark, and the horizontal blade portion extending from the vertical blade portion is arranged so as to face the concave portion side. When the straight claws are arranged on both the left and right sides so as to sandwich the recess such as the tire mark, the mark erasing performance is further improved.

By using a straight claw together with the soil gathering plate 710a, the soil on the surface of the field can be moved by the soil gathering plate 710a to backfill the recesses, and the soil in the lower layer of the field that cannot be moved by the soil gathering plate 710a can be moved by the straight claw. By being able to move it, the trace erasing performance can be further improved.

[Distance between soil gathering board and work claw]
Further, if the distance between the soil gathering plate 710a and the work claw 610 (the distance between the soil gathering plate 710a and the rotation range 612 of the work claw 610) is too close, soil stays between the soil gathering plate 710a and the work claw 610. However, it was found that the amount of soil backfilled in the recesses was insufficient.

In the working machine according to the present invention, the distance between the soil gathering plate 710a and the working claw 610 (distance between the soil gathering plate 710a and the rotation range 612 of the working claw 610) is set to about 50 mm, whereby the soil gathering plate 710a and the working claw are set to about 50 mm. It is possible to form a good soil flow in which soil does not stay between the 610 and the 610.

As described above, according to the working machine 10 according to the first embodiment of the present invention, there is provided a working machine provided with a soil gathering plate capable of attracting a sufficient amount of soil to recesses such as tire traces and having improved trace erasing performance. can do.

<Modification Example 1>
A modified example of the working machine 10 described in the first embodiment will be described with reference to FIG. In the following modification, the shape of the soil gathering plate is mainly different from that of the first embodiment.

FIG. 5 is a diagram showing a soil gathering plate mounted on a working machine according to an embodiment of the present invention. 5 (a) is a side view of the soil gathering plate, FIG. 5 (b) is a plan view seen from the direction A of FIG. 5 (a), and FIG. 5 (c) is a plan view seen from the direction B of FIG. 5 (a). It is a figure.

As shown in FIG. 5 (b), the surface of the soil gathering plate 710b (plate-shaped portion 711b) has a convex portion that is convex toward the soil gathering surface 760a side (the plane side seen from the direction A in FIG. 5A). 712b is formed. As shown in FIG. 5 (c), a concave portion 714b is formed on the back surface of the soil gathering surface 760a of the soil gathering plate 710b (plate-shaped portion 711b) along a position corresponding to the convex portion 712b. In FIG. 5B, the convex portion 712b is provided along the direction of soil flow formed by the soil gathering plate 710b (plate-shaped portion 711b).

Since other configurations are the same as those in the first embodiment, the repeated description will be omitted.

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

<Embodiment 2>
The second embodiment will be described with reference to FIGS. 6 to 7. In the following embodiment 2, the shape of the soil gathering plate is mainly different from that of the first embodiment.

FIG. 6 is a partial explanatory view showing a soil gathering portion in a state of being mounted on a working machine according to an embodiment of the present invention. 6 (a) is a top view of the soil gathering plate, FIG. 6 (b) is a plan view seen from the direction A of FIG. 6 (a), and FIG. 6 (c) is a plan view seen from the direction C of FIG. 6 (a). FIG. 6 (d) is a plan view seen from the direction B of FIG. 6 (a).

FIG. 7 is a diagram showing a soil gathering plate included in the soil gathering portion shown in FIG. FIG. 7A is a side view of the soil gathering plate, and FIG. 7B is a plan view of the soil gathering plate.

As shown in FIG. 7B, in the second embodiment, the soil gathering plate 710c has a plate-shaped portion 711c for gathering soil and a handle portion 713 extending above the plate-shaped portion 711c. The handle portion 713 is formed with a hole 715 for gripping the soil gathering plate 710c.

Since the soil gathering plate 710c has the handle portion 713, it is convenient to handle the soil gathering plate 710c when the soil gathering plate mounting member 720c of the soil gathering plate 710c is removed from the support member 730.

Further, in the shape of the plate-shaped portion 711c of the soil gathering plate 710c shown in FIG. 7B, there are some parts that are slightly different from the soil gathering plate 710a of the first embodiment, but C11, C12, described in the soil gathering plate 710a of the first embodiment, Since R11, W11, and W12 correspond to C21, C22, R21, W21, and W22 in the soil gathering plate 710c, respectively, the description and operation / effect regarding these configurations are the same as those in the first embodiment.

Further, even in the configuration of the soil gathering portion 700c in the state of being mounted on the working machine shown in FIG. 6, the θ11, θ12, and θ13 described in the soil gathering portion 700a of the first embodiment are replaced with θ21, θ22, and θ23 in the soil gathering portion 700c, respectively. Therefore, the description and operation / effect regarding these configurations are the same as those in the first embodiment.

Although only the soil gathering plate 710c and the soil gathering plate mounting member 720c are shown in FIG. 6, the soil gathering portion 700c also has a support member 730, a soil gathering portion mounting member 740, and a grip 750, as in the first embodiment. You may.

Since other configurations are the same as those in the first embodiment, the repeated description will be omitted.

<Modified Example of Embodiment 2>
A modified example of the working machine 10 described in the second embodiment will be described with reference to FIG. In the following modification, the shape of the soil gathering plate is mainly different from that of the second embodiment.

FIG. 8 is a diagram showing a soil gathering plate mounted on a working machine according to an embodiment of the present invention. 8 (a) is a side view of the soil gathering plate in one embodiment of the present invention, FIG. 8 (b) is a plan view seen from the direction A of FIG. 8 (a), and FIG. 8 (c) is FIG. 5 (a). It is a plan view seen from the B direction of.

As shown in FIG. 8 (b), the surface of the soil gathering plate 710d (plate-shaped portion 711d) has a convex portion that is convex toward the soil gathering surface 760 side (the plane side seen from the direction A in FIG. 8A). 712d is formed. As shown in FIG. 8 (c), a concave portion 714d is formed on the back surface of the soil gathering surface 760 of the soil gathering plate 710d (plate-shaped portion 711d) along a position corresponding to the convex portion 712d. In FIG. 5B, the convex portion 712d is provided along the direction of soil flow formed by the soil gathering plate 710d (plate-shaped portion 711d).

Since other configurations are the same as those in the second embodiment, the repeated description will be omitted.

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

Although the present invention has been described above with reference to the drawings, the present invention is not limited to the above-described embodiment, and can be appropriately modified without departing from the spirit of the present invention.

10: Work machine, 100: Work part, 110: Shield cover, 120: Ground leveling body, 122, 132: Connection part, 130: Leveler, 200: Extension work part, 210: Extension shield cover, 220: Extension leveling body, 230 : Extension leveler, 510: Leveler expansion part, 700: Earth gathering part, 710: Earth gathering plate, 711: Plate-shaped part, 712: Convex part, 713: Handle part, 714: Concave part, 720: Earth gathering plate mounting member, 730: Support Member, 740: Earth gathering part mounting member, 750: Grip, 760: Earth gathering surface, 600: Rotor part, 610: Work claw

Claims (7)

It is a soil gathering board attached to a work machine that cultivates or agitates the soil by rotating the work claws.
The soil gathering plate has a plate-shaped portion for gathering soil and a handle portion provided integrally with the plate-shaped portion.
The plate-shaped portion has linear notches at the inner and outer ends of the lower side, respectively, and when mounted on the working machine, the outer side portion is on a horizontal plane in the traveling direction of the working machine. to name an acute angle for,
The inner angle formed by the inner notch and the lower side is larger than the inner angle formed by the outer notch and the lower side . The soil gathering plate according to claim 1, wherein the handle portion includes a hole portion for gripping the soil gathering plate . The soil gathering plate according to claim 1 or 2, wherein the plate-shaped portion has an acute angle with respect to a horizontal plane in the traveling direction of the working machine when the soil gathering surface is mounted on the working machine. The plate-shaped portion is any one of claims 1 to 3, wherein the soil gathering surface for performing the soil gathering work forms an acute angle with respect to the vertical surface in the traveling direction of the work machine when the plate-shaped portion is mounted on the work machine. The clay board described in. When the plate-shaped portion is mounted on a working machine, linear notches are formed at the inner and outer ends of the lower side, respectively.
The soil gathering plate according to any one of claims 1 to 4, wherein the notch formed at the outer end of the lower side constitutes the outer side portion. The earthing up plate has a convex portion earthing up surface to perform earthing up operations, earthing up plate according to any one of claims 1 to 5. It is a soil gathering board attached to a work machine that cultivates or agitates the soil by rotating the work claws.
The soil gathering plate has a plate-like portion for gathering soil, and has a plate-like portion.
The plate-shaped portion has linear notches at the inner and outer ends of the lower side, respectively, and when mounted on the working machine, the outer side portion is on a horizontal plane in the traveling direction of the working machine. On the other hand, make a sharp angle,
The inner angle formed by the inner notch and the lower side is larger than the inner angle formed by the outer notch and the lower side .

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