JP7449544B2 - Green onion cultivator used as a management machine and a dedicated management machine for green onions - Google Patents

Description

TECHNICAL FIELD The present invention relates to a green onion cultivator and a leek-specific management machine used as a management machine, and more particularly to a green onion cultivator and a leek-specific management machine equipped with a roller that is located above a slope and brings soil closer to the green onions.

An important step in cultivating white onions is the so-called ``potting soil.'' This soil-filling process involves adding culture soil to the base of the white onion plants according to their growth stage. This work is usually done four or five times before harvesting, and sometimes this work is done to prevent the trees from lodging due to strong winds such as typhoons, so there is a problem in that it takes a lot of time to do it manually. Therefore, cultivation is generally carried out using a management machine, which cultivates the soil (cultivating soil) using the rotary machine and brings the soil to the base of the plant.

If you just blow the soil toward the roots of the green onions like the management machine in Non-Patent Document 1, the thrown soil will easily crumble due to wind and rain, so it is necessary to press the soil with an appropriate amount of force. However, since there is a drag force when pressed, a problem arises in that it becomes difficult for the management machine to move forward. Therefore, a method was devised to make it easier for the management machine to advance by pressing the soil with rollers that reduce frictional resistance with the ridges as they rotate.

For example, Patent Document 1 includes rollers between the wheels and the rotary. However, this roller is a shaping rotary body for forming a slope of the entire height of the cultivation row, and cannot be used for leek use to press only the soil at the top of the slope. In addition, soil bundling for soft whitening (prevention of greening) requires moderate pressure to push the soil into the roots without damaging the white onions, but Patent Document 1 does not have a configuration for this moderate pressure, and It cannot be used for green onions. In addition, if there are areas where there is a large amount of soil to be pressed or hard soil, and the drag becomes large, the management machine will not move forward. In this way, a soil cultivator for green onions does not just need to be equipped with rollers.

On the other hand, the soil cultivator equipped with rollers disclosed in Non-Patent Document 2 fills the roots of white onions with soil using the appropriate pressure force of the brush, and when there is excessive soil resistance, the brush bends and creates a drag. The control machine can move forward easily because it runs away from the enemy.

Japanese Patent Application Publication No. 2002-186302

youtube|Kanto Agricultural Machinery Co., Ltd. Negi Puncher, [Searched on September 1, 2020], Internet <https://www.youtube.com/watch?v=IBaCj-fIRFk>> Aomori Prefectural Agriculture and Forestry Research Center Upland Horticulture Experiment Station, Cultivation Department | Improvement of walking-type management machine to save labor in mulching green onions, [Searched on September 1, 2020], Internet < https://www.aomori -itc.or.jp/_files/00023122/H17-35.pdf〉

However, the soil cultivator of Non-Patent Document 2 is equipped with a roller that is long downward in order to form a slope at the rear in the traveling direction (behind the management machine). If this roller is placed at the rear of the management machine, the rear of the management machine will face downward when it tries to turn to the next ridge and go over the step created between the working path deepened by the rotary and the turning place. Since it is necessary to tilt the management machine diagonally (see the step U in FIG. 10(B)), the roller comes into contact with the working path or the slope of the ridge. For this reason, a problem arises in that the rollers become a hindrance to the moving and turning operations of the management machine. The more the number of times the earth is moved, the larger the difference in level becomes, and the problem becomes more noticeable.

At that time, it may be possible to lift the handle of the management machine and move the management machine while raising the soil cultivator, but doing this repeatedly is not recommended for weak workers or elderly workers. This is not realistic for farmers who want to move forward, and it is also a safety issue.

Therefore, the inventor of the present application filed Japanese Patent Application No. 2019-24240. This soil cultivator is equipped with a short roller that presses only the soil at the top of the slope, and uses a coil spring to press the soil with a moderate force, and when there is excessive resistance from the soil, the arm that holds the roller moves. It has a structure that allows it to escape from excessive drag. For this reason, it is suitable for use as a soil pot for green onions. The problem of contact between the rollers during turning movement is solved by equipping the tiller with an elevating mechanism that lifts up the rollers when the management machine is moved to the next ridge.

However, in the soil cultivator of Patent Application No. 2019-24240, the rollers protrude from the rear of the management machine, so in order to check the status of the earth raising, you have to look backwards, making it difficult to check the situation. There is. Further, since the rollers are far apart from the wheels of the management machine, there is a problem in that when the wheels pick up small irregularities in the work path, the rollers that are far away from the wheels will move up and down significantly. In addition, since the rollers protrude from the rear of the management machine, when the management machine is tilted, the rollers come into contact with the working path or the slope of the ridge.To solve this problem, the rollers are equipped with a lifting mechanism that lifts them up. The problem is that it is difficult for inexperienced workers to use the lifting and lowering mechanism since it is necessary to return the lifting mechanism after turning.
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a green onion cultivator and a green onion management machine that are suitable for soiling white onions.

In order to solve the above problems, a green onion cultivator used in a management machine according to one aspect of the present invention is provided with a rotary and wheels behind the rotary, and a green onion cultivator used in a management machine whose traveling direction is the rotary side. A roller is provided that is located above the slope and moves the soil toward the green onions, and the roller is arranged at a position behind the rotary and at a position that does not protrude from the rear of the management machine. Features.

In the green onion cultivator used in the management machine of the present invention, the rollers are located behind the rotary, so plowing and soil removal can be performed at the same time. In addition, since the rollers are placed in a position that does not protrude from the rear of the management machine, it is possible to check the status of the earth-harvesting without having to look backwards. Furthermore, because the green onion cultivator has rollers close to the wheels of the management machine, the rollers do not move up and down significantly even with small irregularities in the work path. In addition, when moving to the next ridge, when moving to the next ridge, the rollers will not come into contact with the work path or the slope of the ridge, even if the management device is tilted. Easy to do.

Note that it is important that the roller is located at the rear of the rotary and at a position that does not protrude from the rear of the management machine. If a part of the roller protrudes from the rear of the management machine, the above effect will be achieved, so it is natural that this also includes cases where part of the roller protrudes. It is.

In the green onion cultivator used in the management machine of the present invention, it is preferable that the roller is held by a holding member fixed to a tail wheel provided in front of the rotary of the management machine.

Usually, management machines used for green onions are equipped with a tail wheel for adjusting the tillage depth. The tail wheel has a long support that adjusts the depth of plowing and rotatably supports the shaft of the tail wheel (also called the front wheel). If you use this, you can attach the soil cultivator to a wide variety of management machines. In addition, since the support is pipe-shaped, the soil cultivator can be easily attached using the sandwiching method, and there is no need for processing work such as drilling holes in the management device or welding mounting brackets to attach the cultivator. .

In the green onion cultivator used in the management machine of the present invention, the holding member includes an arm extending from the tail wheel side to the wheel side, and a spring, and the arm has a spring that extends from the tail wheel side to the wheel side. Preferably, it is movably pivoted to hold the roller on the wheel side, and the spring biases the arm in the direction of the lug.

In this way, the roller is held by a long spring-loaded arm to press against the soil. The arm is rotatably supported on the advancing direction side. Therefore, when the drag force of the soil is large, the rollers can escape to the management machine side.

The green onion cultivator used in the management machine of the present invention includes a width adjustment section that adjusts the mounting position of the roller in the horizontal direction of travel, and a vertical adjustment section that adjusts the mounting position of the roller in the vertical direction. It is preferable.

Thereby, the green onion cultivator can be adapted to ridges with different widths and ridges with different heights. Also, since it is equipped with a vertical adjustment section, the height of the mound can be increased according to the growth of the green onions. In addition, the position of the roller of the green onion cultivator can be adjusted according to different management machines.

In order to solve the above problems, a green onion management machine according to one aspect of the present invention is a green onion management machine that is equipped with a rotary and wheels behind the rotary, the rotary side is the traveling direction, and a soil cultivator. The soil cultivator is provided with a roller located above the slope to move the soil toward the green onions, and the roller is arranged at a position behind the rotary and at a position that does not protrude from the rear of the green onion management machine. It is characterized by With such a configuration, it is possible to provide a management machine exclusively for green onions that is suitable for soiling white onions.

(A) is a perspective view from the rear side of the green onion management machine to which the soil cultivator according to the present embodiment is attached, and (B) is a perspective view from the front side thereof. (A) is a plan view of FIG. 1(A), and (B) is a right side view of FIG. 1(A). It is a front view of FIG. 2(A). (A) is a plan view showing the soil cultivator of the present embodiment and a tail wheel portion to which the tiller is attached, (B) is a side view thereof, and (C) is a bottom view. (A) is a front view of FIG. 4(A), (B) is a rear view, and (C) is a perspective view from the rear. (A) is a perspective view from the front showing a mechanism for adjusting the position of the roller, and (B) is a perspective view from the front showing another method of attaching the roller. This is an image of a prototype of the soil cultivator in this embodiment. (A) is a plan view showing a change in the position of a roller in a green onion management machine to which a soil cultivator is attached, (B) is a right side view thereof, and (C) is a front view thereof. (A) is a diagram showing the positional relationship between a roller attached at a low position and the ridges, and (B) is a diagram showing the positional relationship between the roller attached at a high position and the ridges. (A) is a diagram showing a state in which the management machine according to the present embodiment is tilted on a step, and (B) is a diagram showing a conventional management machine.

Hereinafter, a mode for carrying out the present invention will be described with reference to embodiments and drawings, but the embodiments shown below are not intended to limit the present invention to what is described herein, and the present invention is not intended to be limited to what is described herein. The invention can equally be applied to various modifications without departing from the technical idea shown in the claims. In addition, in the drawings used for explanations in this specification, each member is shown at a different scale in order to make each member recognizable on the drawing. The dimensions are not shown to scale.

[Management machine]
The management machine 200 to which the soil cultivator 100 is attached will be explained using FIGS. 1 to 3. FIG. 1(A) is a perspective view from the rear side of the management machine 200 to which the soil cultivator 100 in this actual machine form is attached, and FIG. 1(B) is a perspective view from the front side. Further, FIG. 2(A) is a plan view of FIG. 1(A), FIG. 2(B) is a side view from the right side thereof, and FIG. 3 is a front view thereof.

This management machine 200 is used for soil filling work in green onion cultivation, and travels along the working path between ridges R, tills the soil on the working path and on the slope, and transfers the soil to a cultivating pot. At step 100, move the green onions GO, which are planted in the ridge R, closer to the roots. Note that this management machine 200 moves in the direction of arrow A in FIG. 1 .

The management machine 200 is a type of agricultural machine, and is also called a tiller. This management machine 200 is commercially available, and various manufacturers are selling it. The management machine 200 mainly includes a power section 201, a handle section 202, a rotary 203, a cover section 204, wheels 205, and a tail wheel section 300.

Then, the rotary 203 tills the soil on the working path and the soil on the slope S. Further, the tail wheel portion 300 is included in the management machine 200 used for soiling green onion GO, and the depth of tillage is adjusted by this tail wheel portion 300. Specifically, the tail wheel portion 300 includes a tail wheel 301 that is a wheel, and a strut 302 that rotatably supports the tail wheel 301. A handle is attached to the upper end of the column 302, and by rotating this handle, the shaft portion inside the column 302 expands and contracts to adjust the length, thereby adjusting the depth of tillage. Note that the tail wheel 301 of the tail wheel portion 300 is sometimes called a front wheel, but if it is a wheel used for adjusting the depth of plowing, it corresponds to the tail wheel portion 300.

[Cultivator]
The main structure of the soil cultivator 100 will be explained using FIGS. 4 to 7 and the like. FIG. 4(A) is a plan view showing the soil cultivator 100 of the present embodiment and the tail wheel portion 300 (double-dashed line) to which the cultivator 100 is attached, and FIG. 4(B) is a right side view thereof. 4(C) is a bottom view, FIG. 5(A) is a front view of FIG. 4(A), FIG. 5(B) is a rear view thereof, and FIG. 5(C) is a rear perspective view thereof. It is. FIG. 6(A) is a perspective view from the front showing a mechanism for adjusting the position of the roller 1, and FIG. 6(B) is a perspective view showing another method of attaching the roller 1. FIG. 7 is an image of a prototype of the soil cultivator 100.

The soil cultivator 100 is symmetrical with respect to the traveling direction A, as shown in FIG. 4(A). The soil cultivator 100 includes a roller 1 common to the left and right sides with respect to the traveling direction A, and a roller holding member 2 that attaches and holds the pair of left and right rollers 1 to a tail wheel portion 300. The roller 1 includes a drum 11 and a roller shaft 12 (see FIG. 1) that rotatably supports the drum 11.

The roller holding member 2 includes a common left and right roller mounting bracket 21, a common right and left vertical arm 22, a left and right vertical slide section 23, a left and right horizontal slide section 24, a left and right common horizontal arm 25, a left and right common vertical arm 22, a left and right vertical slide section 23, a left and right horizontal slide section 24, a left and right horizontal arm 25, and a common right and left vertical arm 22. Vertical angle adjustment fittings 26, left horizontal angle adjustment fittings 27L, right horizontal angle adjustment fittings 27R, left and right biasing fittings 28, left and right common main shafts 29, left and right common spacers 30, left and right compression fittings common It consists of a coil spring 31, a chassis 32, a rear mounting bracket 33, and a front mounting bracket 34.

In addition, this soil cultivator 100 includes a vertical adjustment section that adjusts the height direction of the roller 1, a width adjustment section that adjusts the width direction of the roller 1, and a mechanism that biases the roller 1 toward the green onion GO side. .

Next, these configurations of the soil cultivator 100 will be described, focusing on the configuration on the right side. Note that the same applies to the configuration on the left side. As shown in the enlarged views of FIGS. 4(B), 5(C), and 6(A), the roller mounting bracket 21 bolts the roller 1 to one end of the vertical arm 22 of an L-shaped square hollow pipe. Connect with. The horizontal arm 25 is a square hollow pipe, the vertical slide section 23 is a square tube that slides on the vertical arm 22, and the horizontal slide section 24 is a square tube that slides on the horizontal arm 25.

As shown in FIG. 4(B), the vertical sliding portion 23 and the horizontal sliding portion 24 are arranged at a predetermined angle (90 degrees + θ in FIG. 4(B), where θ is the horizontal arm The angle of inclination is .).

As shown in FIG. 2(B), a plurality of adjustment holes 221 are provided in the vertical arm 22 and a plurality of adjustment holes 231 are provided in the vertical slide portion 23, which penetrate through the vertical arm 22 and the vertical slide portion 23. The height of the roller 1 can be adjusted depending on which adjustment hole is used for the pin (first vertical adjustment section).

Similarly, the horizontal arm 25 is provided with a plurality of adjustment holes 251, and the horizontal slide portion 24 is also provided with a plurality of adjustment holes 241, and it is determined which adjustment hole should be used for the pin that passes through the horizontal arm 25 and the horizontal slide portion 24. The position of the roller 1 on the horizontal arm 25 can be adjusted by (first width adjustment section).

The pin used at this time has one end that is compressed and deformed to prevent it from coming off, and the other end that has a snap pin that prevents it from coming off. Further, as shown in FIG. 6(B), the roller 1 can be directly attached to the horizontal arm 25 using the roller mounting bracket 21 without using the vertical arm 22, the vertical slide section 23, and the horizontal slide section 24.

The lateral arm 25 is a long square piece extending from the wheel 205 to the tail wheel 300, and has a plurality of adjustment holes 251 for attaching the roller 1 on the wheel 205 side, and the end on the tail wheel 300 side has a U-shaped cross section. It is fitted into the vertical angle adjustment fitting 26 and held by two pins.

As shown in FIG. 4(B), the pin adjustment holes provided in the vertical angle adjustment fitting 26 have a pair of left and right axes (for example, refer to the broken line leader line in the upper enlarged view of FIG. 4(B)). There are a hole 261 and two pairs of left and right adjustment holes 262 (see, for example, the solid line and the broken line leader line in the upper enlarged view of FIG. 3 and FIG. 4(B)). Then, one pin is inserted into the shaft hole 261, and the remaining one pin is used so that the inclination angle θ of the horizontal arm 25 can be selected depending on which pair of the two adjustment holes 262 is used. (second vertical adjustment section).

Note that FIG. 6A shows an example in which the horizontal arm 25 on the front side uses a different adjustment hole 262 (upper adjustment hole 262) (the lower adjustment hole is used on the back side). In addition, in order to accommodate this selection, two types of inclination angles for welding the vertical slide portion 23 and the horizontal slide portion 24 may be prepared (an example in FIG. 4(B) and an example in FIG. 6(A)). . Moreover, the vertical slide part 23 and the horizontal slide part 24 may be structured so that the inclination angle can be adjusted instead of being welded.
The biasing metal fitting 28 having a U-shaped cross section is configured to fit on the outside of the U-shaped cross section of the chassis 32 and rotate with respect to the chassis 32 .

The right horizontal angle adjustment fitting 27R has a U-shaped open portion with an upward cross section on its upper surface, and is configured to rotate coaxially with the urging fitting 28 while contacting the upper surface of the urging fitting 28. The biasing fitting 28 and the right horizontal angle adjusting fitting 27R are connected with a pin.

The biasing fitting 28 is provided with two pairs of upper and lower adjustment holes 281 at different distances from the center of rotation. Furthermore, five adjustment holes 27R1 corresponding to the two pairs of adjustment holes 281 of the biasing metal fitting 28 are provided in the flat part of the right horizontal angle adjustment metal fitting 27R. Then, depending on which pair of adjustment holes are used to connect the pins (see the enlarged view on the right of the bottom view in FIG. 4(c)), the U-shaped opening of the right horizontal angle adjustment fitting 27R relative to the biasing fitting 28 is determined. The orientation can be selected (second width adjustment section).

The vertical angle adjustment fitting 26 having a U-shaped cross section is fitted inside the U-shaped opening of the right horizontal angle adjustment fitting 27R and is screwed with bolts and nuts. Further, the vertical angle adjustment fitting 26, the right horizontal angle adjustment fitting 27R, and the biasing fitting 28 are rotatably supported on the chassis 32 by a main shaft 29. This main shaft 29 is attached with bolts and nuts containing spacers 30.

Next, a mechanism for urging the roller 1 toward the green onion GO side (the ridge R side) will be explained. The compression coil spring 31 is inserted between the chassis 32 and the biasing metal fitting 28, and is held by a pin containing a washer and a retaining snap pin. This compression coil spring 31 urges the biasing fitting 28 in the counterclockwise rotation direction when viewed from the plan view of FIG. 4(A).

As a result, the right horizontal angle adjustment fitting 27R connected to the biasing fitting 28 with a pin is also urged in the left rotation direction, and the vertical angle adjustment fitting 26 attached to the right horizontal angle adjustment fitting 27R is also urged in the left rotation direction. As a result, the horizontal arm 25 attached to the vertical angle adjustment fitting 26 is biased in the counterclockwise rotation direction, and the roller 1 on the right side in the traveling direction is biased toward the right green onion GO (ridge R) side.

In this way, the soil cultivator 100 of this embodiment is configured to urge the roller 1 by urging the horizontal arm 25 toward the green onion GO side. Therefore, since an outward force (on the green onion GO side) always acts on the roller 1, soil can be moved with a stable force. Further, even if the slope of the ridge R has irregularities, the soil cultivator 100 can follow the shape and perform soil levitation with a stable force. Further, in the soil cultivating device 100, when an unreasonable force is applied to the rollers 1, the rollers 1 can escape inward, so that no unnecessary load is applied to the cultivating device 100 or the management machine 200.

The force applied to the horizontal arm 25 can be adjusted by selecting the five adjustment holes 27R1 of the right horizontal angle adjustment fitting 27R or the plurality of adjustment holes 241, 251 of the horizontal slide portion 24 and the horizontal arm 25. Further, the compression coil spring 31 can be replaced by attaching and detaching a retaining snap pin, and the biasing force of the horizontal arm 25 can be adjusted by changing to a compression coil spring 31 having a different spring constant. Further, a mechanism may be provided that allows the receiving position of the compression coil spring 31 on the chassis 32 to be changed, so that the biasing force of the compression coil spring 31 can be adjusted.

Furthermore, it is also possible to use a single compression coil spring to urge the two left and right rollers 1 at the same time. However, in the soil cultivator having such a configuration, when an overload is applied to one roller 1, it will interfere with the other roller 1. However, in the soil cultivator 100 of this embodiment, since the compression coil spring 31 is independent for each roller 1, it does not interfere with the other drum 1.
Note that the left roller 1 is also attached to the chassis 32 in the same configuration and method as the right roller, and the left roller 1 is biased to the left.

Next, the attachment of the soil cultivator 100 to the management machine 200 will be explained. The rear attachment fitting 33 and the front attachment fitting 34 are fittings for attaching the chassis 32 to the management machine 200. The tail wheel portion 300 of the management machine 200 has a strut 302 that rotatably supports the tail wheel 301, and a rear mounting bracket 33 and a front mounting bracket 34 sandwich this strut 302 in the front and back, and connect four sets of bolts. , screwed on with a nut. Further, the chassis 32 is screwed onto this bolt with four nuts.

Note that it is possible to attach the chassis 32 without the front mounting bracket 34, but since the chassis 32 with various parts attached is heavy, in this embodiment, the front mounting bracket 34 is used to attach the chassis to the support column 302. It consists of four bolts that are screwed together.

By the way, the management machine 200 is usually equipped with a tail wheel part 300 for adjusting the depth of tillage. The tail wheel portion 300 has a strut 302 that rotatably supports the tail wheel 301. As in this embodiment, by using the struts 302 of the tail wheel portion 300, the soil cultivator 100 can be attached to various types of management machines. Moreover, since the support column 302 is pipe-shaped, the soil cultivator 100 can be easily attached by the sandwiching method as in this embodiment. Therefore, in order to attach the soil cultivator 100, there is no need for processing operations such as drilling an attachment hole in the management machine 200 or welding attachment fittings.

As shown in FIG. 8(A), the soil cultivator 100 attached to the management machine 200 can adjust the horizontal angle of the horizontal arm 25 using the adjustment holes 27R1 and 27L1 of the horizontal angle adjustment fittings 27R and 27L. (Second width adjustment section) Also, since the attachment position of the roller 1 to the horizontal arm 25 can be adjusted using the horizontal slide section 24 and the adjustment holes 241, 251 of the horizontal arm 25, (the first width adjustment section) ), these width adjustment parts can adapt to various widths of the ridges R.

Further, as shown in FIG. 8B, the vertical angle of the horizontal arm 25 can be adjusted using the adjustment hole 262 of the vertical angle adjustment fitting 26 (second vertical control part). The mounting position of the vertical arm 22 and the vertical slide part 23 can be adjusted using the adjustment holes 221 and 231 (first vertical adjustment part), so these vertical adjustment parts can be used to adjust the height of various ridges R, The height of the roller 1 can be adjusted according to the growth of green onion GO (see FIG. 9). Although the roller 1 of the soil cultivator 100 of this embodiment is substantially vertical, a mechanism that can adjust the angle of the roller 1 according to the angle of the inclination direction of the slope S may be provided.

In this way, in the soil cultivator 100 of this embodiment, as shown in FIGS. 9A and 9B, the rollers 1 do not bury the entire height of the ridges R, but bury the upper part of the ridges R. Because of this, it is short and the soil can be collected efficiently with a small amount of power from the management machine 200.

Further, the soil cultivator 100 is attached to the tail wheel portion 300 of the management machine 200, and the roller 1 is located at a position sufficiently away from the tail wheel portion 300 by the long horizontal arm 25. If the roller 1 is close to the tail wheel portion 300 where it is attached, the escape of the roller 1 will be reduced in the event of an overload, making it difficult for the management machine 200 to advance. However, since the soil cultivator 100 is sufficiently far away from the tail wheel portion 300, the roller 1 tends to escape when overloaded, and the management machine 200 tends to advance. In other words, when the roller 1 escapes the same dimension with a short arm and a long arm, the long arm requires a smaller angle change to move the spring, so it can escape with a lighter force. Therefore, since it is possible to escape with a light force when the drag force of the soil is large, the management machine 200 can easily move forward.

In this embodiment, the soil cultivator 100 has a figure-eight shape that widens toward the rear due to the horizontal arm 25 extending rearward from the tail wheel portion 300 of the management machine 200. On the other hand, the soil cultivator can also be formed into an inverted figure-eight shape that widens toward the front by a horizontal arm extending forward from the rear side of the management machine 200. However, such a shape is undesirable because when the soil resistance is large, the horizontal arm will move toward the green onion GO side, and the roller 1 will not be able to escape and the forward movement of the management machine may stop. .

Furthermore, since the roller 1 is located near the wheels 205 that serve as the fulcrum for tilting the management machine 200, even if the management machine 200 vibrates due to small irregularities in the work path, the vertical fluctuation of the roller 1 is suppressed, and the roller 1 It is possible to bury earth while maintaining a stable height. In other words, if the roller 1 is away from the wheels 205 and the management machine 200 vibrates due to small irregularities in the work path, the roller 1 will undergo larger vertical fluctuations. No vibration occurs.
Moreover, since the roller 1 is disposed at a position that does not protrude from the rear of the management machine 200, it is possible to check the status of the earth-harvesting without having to look backwards during work.

In addition, the roller 1 is a short roller 1 located above the slope S, and is disposed at a position that does not protrude from the rear of the management machine 200, so when moving to the next ridge R while turning, the management machine Even if the front side of the roller 200 is lifted up, the roller 1 does not come into contact with the working path or the slope S of the ridge R. FIG. 10 is a diagram showing this in comparison with the conventional one. FIG. 10(A) shows the soil cultivator 100 of this embodiment, and FIG. 10(B) shows the conventional soil cultivator in which the roller protrudes behind the management machine. be.

Moreover, since the soil cultivator 100 of this embodiment can be attached to and detached from a commercially available management machine 200, there is no need to purchase a new management machine 200, and the cost is low. However, the management device 200 of the present invention is not limited to the removable soil cultivator 100, but is a management machine equipped with a soil cultivator, and this soil cultivator is located above the slope and directs the soil to the leek side. It can also be realized as a leek-only management machine that includes a roller for moving the leek, and this roller is disposed at a position behind the rotary and at a position that does not protrude from the rear of the management machine.

100: Cultivator 1: Roller 2: Roller holding member 21: Roller mounting bracket 22: Vertical arm 23: Vertical slide section 24: Horizontal slide section 25: Horizontal arm 26: Vertical angle adjustment bracket 27R, 27L: Horizontal angle adjustment bracket 28 : Biasing bracket 31: Compression coil spring 32: Chassis 33: Rear mounting bracket 34: Front mounting bracket 200: Management machine 300: Tail wheel 301: Tail wheel 302: Strut S: Slope

Claims (5)

A green onion cultivator for use in a management machine comprising a rotary and wheels behind it, with the rotary side as the traveling direction,
a holding member attached to a tail wheel provided in front of the rotary of the management machine;
It is equipped with rollers that are located above the slope and move the soil towards the green onions.
The holding member includes an arm extending from the tail wheel side to the wheel side,
A green onion cultivator used in a management machine , wherein the arm holds the roller at a position behind the rotary and at a position that does not protrude from the rear of the management machine. The green onion cultivator used in a management machine according to claim 1, wherein the roller is located next to the wheel of the management machine . The holding member further includes a spring,
2. The green onion cultivator used in a management machine according to claim 1 , wherein the spring urges the arm in the direction of the green onion. a width adjustment section that adjusts the mounting position of the roller in the lateral direction of travel;
a vertical adjustment section that adjusts the mounting position of the roller in the vertical direction;
The green onion cultivator used in the management machine according to claim 1, comprising: A green onion management machine equipped with a rotary and wheels behind it, with the rotary side as the direction of travel, and a soil cultivator,
The said cultivator is
a holding member attached to a tail wheel provided in front of the rotary;
It is equipped with rollers that are located above the slope and move the soil towards the green onions.
The holding member includes an arm extending from the tail wheel side to the wheel side,
A green onion management machine for use in a management machine , wherein the arm holds the roller at a position behind the rotary and at a position that does not protrude from the rear of the green onion management machine.

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