JP2002345303A - Partial deep tilling machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a partial deep tilling machine capable of reducing exchange cost and facilitating exchange operation. SOLUTION: This partial deep tilling machine 1 is equipped with a pair of right and left supporting frames 11. A chisel 15 for cutting and lifting soil of subsoil layer is provided in the lower end of the supporting frame 11. An operating body 51 for receiving soil from the chisel 15 and cutting and lifting soil and reversing and releasing the soil onto the surface G of the land is provided in the supporting frame 11. The operating body 51 is constituted of a cutting plate 26 and a reversing plate 46 which are a plurality of divided operating bodies positioned in a state which is vertically adjacent to each other. The cutting plate 26 and the reversing plate 46 are each detachable to the supporting frame 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partial deep cultivator for tilling a partly deep soil.

[0002]

2. Description of the Related Art A conventional partial deep cultivator is provided, for example, with a chisel provided at a lower end portion of a support frame such as a beam for cutting and lifting soil in a subsoil layer. And a work body that is lifted up and turned over on the ground surface. The work body is made of, for example, one synthetic resin plate in the form of an elongated rectangular plate.

[0003]

However, in the above-mentioned conventional partial deep tillage machine, it is necessary to replace the work body due to, for example, abrasion or breakage of the lower part of the work body for cutting hard soil at a relatively deep position from the ground surface. In this case, since the entire work body must be replaced, there is a problem that not only the replacement cost is high but also the replacement work may take time.

[0004] The present invention has been made in view of the above points, and an object of the present invention is to provide a partial deep tillage machine capable of reducing replacement costs and facilitating replacement work.

[0005]

According to a first aspect of the present invention, there is provided a partial deep tillage machine having a support frame, a chisel provided at a lower end portion of the support frame for cutting and lifting soil in a subsoil layer, and a soil from the chisel. And a work body that cuts, lifts up the soil, and releases it on the ground surface, wherein the work body includes a plurality of divided work bodies that are positioned adjacent to each other in the vertical direction. The plurality of divided working bodies are respectively detachable from the support frame.

In this configuration, the working bodies are constituted by a plurality of divided working bodies which are positioned adjacent to each other in the vertical direction, and the plurality of divided working bodies are respectively detachable from the support frame. Therefore, it is possible to avoid having to replace the entire work body based on partial wear, breakage, and the like of the work body, thereby reducing the replacement cost and making the replacement work easier than in the conventional configuration.

[0007] According to a second aspect of the present invention, there is provided a partial deep tillage machine, wherein a cutting body that lifts up to the vicinity of the ground surface while cutting the soil is located separately from and adjacent to the cutting body. Inverted body that inverts and lifts the soil on the ground surface, and a support frame that supports the cut body and the inverted body, wherein the cut body and the inverted body are
Each is detachable from the support frame.

[0008] In this configuration, since the cutting body and the reversing body located adjacent to each other are detachable from the support frame, the cutting body and the reversing body can be exchanged separately. The replacement cost is reduced and the replacement operation is facilitated as compared with the conventional configuration.

In the partial deep tillage machine according to the third aspect, an elongated plate-shaped support frame having a longitudinal direction in the vertical direction, a cutting plate mounting body provided on a lower front side of the support frame, and a cutting plate mounting body. A cutting plate that is detachably attached and lifts up to near the ground surface while cutting soil in a state having a width dimension along the left-right direction larger than a thickness dimension along the left-right direction of the support frame; and A reversing plate mounting body removably attached to the front side of the substantially central portion in the longitudinal direction, and removably mounted on the reversing plate mounting body, and is located separately from the cutting plate and adjacent to the cutting plate. A reversing plate for reversing and releasing the soil lifted by the cutting plate onto the ground surface in a state having a width dimension along the left-right direction larger than a thickness dimension along the left-right direction of the support frame. I It is intended.

In this configuration, the cutting plate and the reversing plate positioned adjacent to each other can be attached to and detached from the support frame via the cutting plate mounting body and the reversing plate mounting body, respectively. The plate and the reversing plate can be replaced separately, thereby reducing the replacement cost and facilitating the replacement operation as compared with the conventional configuration. In addition, according to the work purpose, field conditions, etc., since it can be appropriately replaced with another reversing plate and a reversing plate mounting body, there is no need to prepare a plurality of types of partial deep cultivators corresponding to the work purpose, field conditions, etc. Good versatility.

According to a fourth aspect of the present invention, there is provided the partial deep tillage machine according to the third aspect, wherein the cutting plate and the reversing plate are each formed of a synthetic resin plate to which soil is unlikely to adhere.

In this configuration, since the cutting plate and the reversing plate are each formed of a synthetic resin plate to which the soil does not easily adhere, the soil adhesion to the cutting plate and the soil adhesion to the reversing plate are suppressed.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The configuration of an embodiment of the partial deep tiller according to the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, reference numeral 1 denotes a partial deep cultivator. The partial deep cultivator 1 is a traction type which is detachably mounted on a tractor (not shown) as a towing vehicle as a traveling vehicle. This is a non-driven tilling machine that tills (cuts, crushes, and reverses soil) a deep soil layer while moving the field in the traveling direction X by the tractor's towing operation.

The partial deep tillage machine 1 cuts the lower layer, ie, the subsoil layer and the tillage layer, lifts the cut soil to the ground surface G, and inverts and throws the cut soil on the ground surface G, thereby forming the lower soil layer and the upper layer. It is intended to improve the drainage effect and soil effect of topsoil by mixing with soil, and can achieve both the effect of turning the plow upside down and breaking the subsoiler subsoil. (See FIG. 4).

The partial deep tillage machine 1 includes an elongated, square pipe-shaped main frame 2 having a longitudinal direction in the left-right horizontal direction which is a direction intersecting with the traveling direction X.
Is mounted with a three-point connecting portion 3 as a tractor connecting portion. The three-point connecting portion 3 includes a top mast 5 having a top pin 4, a lower arm 7 having a lower pin 6, and the like.

At both ends in the longitudinal direction of the main frame 2, a plurality of, for example, a pair of left and right support frame mounting bodies 10, 10 are provided.
The support frames 11, 11 which are support arms for beams, shanks, etc. are attached to the support frame attachments 10, 10 so that the height position can be adjusted.

Each support frame 11 is integrally formed of, for example, a metal material in the shape of an elongated plate having a longitudinal direction in the vertical direction. That is, the support frame 11 has a vertically elongated rectangular plate-shaped linear plate portion 12 whose thickness direction coincides with the left-right horizontal direction, and projects forward and obliquely downward from the lower end of the straight plate portion 12 to have a thickness direction. It comprises a rectangular plate-like curved plate portion 13 which is elongated in the vertical direction and coincides with the horizontal direction in the left-right direction. The straight plate portion 12 and the curved plate portion 13 have the same thickness A
It is.

At the lower end of the curved plate portion 13 of the support frame 11, that is, at the tip of the support frame 11 in the traveling direction X, the soil of the hard subsoil layer is slightly cut with the movement in the traveling direction X. A metal chisel 15 such as a tip metal, which is a tip cutting portion to be lifted, is detachably attached by a fixture 16 such as a bolt or a nut. That is, the chisel 15 as the tip blade is detachable from the support frame 11.

The chisel 15 has a connecting plate portion 17 having a plurality of connecting holes such as bolt insertion holes, and a slightly curved rectangular plate-shaped pawl integrally formed at the front end of the connecting plate portion 17 in an intersecting manner. It is composed of a plate portion 18.

The pointed nail plate 18 is a curved plate.
13 has a width B which is larger than the thickness A of the curved plate portion 13 in the left-right horizontal direction, and is a curved front surface of the claw plate portion 18. Are directed sideways in the traveling direction X without inclining sideways with respect to the front, which is the traveling direction X. A wing 20 for improving the crushing effect is rotatably attached to a rear end of the support frame 11 near the lower end of the curved plate portion 13.

At the front end near the lower end of the curved plate portion 13 of the support frame 11, that is, at the lower front side of the support frame 11, for example, a metal cutting plate mount 21 is provided.
Are detachably mounted by mounting members 22 such as bolts and nuts so as to be located along the front end of the head.

The cutting plate mounting body 21 includes a connecting plate 23 having a plurality of connecting holes such as bolt insertion holes, and a connecting plate 23 having a plurality of connecting holes.
And a slightly curved rectangular plate-like mounting plate portion 24 integrally formed in a cross shape at the front end.

The mounting plate portion 24 is, like the claw plate portion 18, orthogonal to the curved plate portion 13, and has a width B in the left-right horizontal direction larger than the thickness A of the curved plate portion 13. (Pawl part
18), and the mounting plate 24
The curved front surface is inclined in the lateral direction with respect to the front, which is the traveling direction X, and faces straight in the traveling direction X without shifting. Note that the front surface of the mounting plate portion 24 and the working surface 19 of the claw plate portion 18 are not located on the same curved surface, but are located at a position slightly shifted rearward in the anti-progression direction X.

On the front surface of the mounting plate portion 24 of the cutting plate mounting body 21, soil of a subsoil layer and a plow layer (such as an intermediate portion between the subsoil and the soil) is moved along with the movement in the traveling direction X. A divided work body that lifts the cut soil near the ground surface G (near the soil layer) while cutting and lifts the cut soil introduced from the upper end of the working surface 19 of the chisel 15 to near the ground surface G (near the soil layer). A cutting plate 26 such as a resin cutting plate, which is a cutting body, is detachably attached by a fixture 27 such as a bolt and a nut, and the cutting plate 26 and the mounting plate portion 24 overlap and are in a laminated state. . That is, the cutting plate 26 receives and lifts the cutting soil from the chisel 15 and also lifts the cutting soil by itself (that is, the soil cut by its own cutting function). It is detachably attached to the lower front side of 11.

The cutting plate 26 is formed of, for example, a relatively thin synthetic resin plate 28 having a shape corresponding to that of the mounting plate 24 to which soil is less likely to adhere. The working surface 29, which is the curved front surface of the cutting plate 26, is located on the same curved surface as the working surface 19 of the claw plate portion 18, and the working surface 29 of the cutting plate 26 and the working surface 19 of the claw plate portion 18 Are adjacent to each other. In addition,
The cutting portion 30 is constituted by the cutting plate 26 and the cutting plate attachment 21.

Further, at the front end near the upper end of the curved plate portion 13 of the support frame 11, that is, at the front side near the center in the longitudinal direction of the support frame 11, for example, a metal reversing plate attachment body 31 is provided.
Bolts to be located along the front end of the support frame 11,
It is detachably attached by a fixture 32 such as a nut.

As shown in FIG. 3, the reversing plate mounting body 31 has, for example, an arrow shape in plan view, and has a connecting plate portion 33 having a plurality of connecting holes such as bolt insertion holes, and a connecting plate portion 33. The front end of the portion 33 is formed of a mounting plate portion 34 having a slightly curved substantially rectangular plate shape and a rectangular cross section formed integrally in a cross shape.

The mounting plate 34 has a width B in the horizontal direction that is larger than the thickness A of the curved plate in a front view.
A narrow portion 36 having the same width dimension as the pawl plate portion 18 is provided. A wide portion 38 wider than the narrow portion 36 is provided at the upper end of the narrow portion 36 through a connecting portion 37 which is widened upward. Are connected. This wide portion 38 is a curved plate portion in a front view.
13 has a width C that is larger than the thickness A in the left-right horizontal direction.

On the front surface of the mounting plate portion 34 of the reversing plate mounting body 31, the cutting plate 26
A resin reversing plate as a reversing member as a divided working body that divides the cutting soil (the soil lifted by the cutting plate 26) introduced from the upper end of the working surface 29 into the right and left evenly on the ground surface G and inverts it. A reversing plate 46 such as a bolt and a nut is removably attached by a mounting member 47 such as a nut.
34 overlap with each other and are positioned vertically adjacent to the cutting plate 26. The reversing plate 46 is the reversing plate mounting body 31
It is detachably attached to the front side of the substantially central portion in the longitudinal direction of the support frame 11 so as to be vertically adjacent to the cutting plate 26.

The reversing plate 46 is formed of, for example, a relatively thin synthetic resin plate 48 having a shape corresponding to that of the mounting plate portion 34 to which soil is less likely to adhere. The operation surface 49, which is a curved front surface of the reversing plate 46, is divided into two divided inclination operation surfaces 49a, 49b inclined at a predetermined inclination angle (for example, 45 degrees) to both sides with respect to the front in the traveling direction X. It is formed.

A boundary portion 49c between the two divided inclined action surfaces 49a and 49b is located on the same curved surface as the action surface 19 of the pawl plate portion 18 and the action surface 29 of the cutting plate 26, and the action surface of the reversing plate 46. 49 and the working surface 29 of the cutting plate 26 are adjacent to each other. The reversing plate 50 and the reversing plate mounting body 31 constitute a reversing unit 50. Further, a chisel is formed by a plurality of, for example, two continuous cutting plates 26 and reversing plates 46 positioned adjacent to each other in the vertical direction along the longitudinal direction of the support frame 11.
A work body 51 is provided which guides the soil from 15 and cuts and lifts the soil to invert it onto the ground surface G.

Next, a description will be given of a case where a tillage operation is performed using the partial deep tiller 1 described above.

The tractor is mounted on the tractor by connecting the three-point hitch portion of the tractor to the three-point connecting portion 3 of the partial cultivator 1, and a predetermined portion of the partial cultivator 1 is connected by the three-point hitch portion of the tractor. The tractor is inserted into the soil of the field, and then the tractor 1 is moved in the traveling direction X by the towing operation of the tractor.

When the partial deep tiller 1 moves in the traveling direction X,
By this movement, the hard subsoil layer soil is cut by the working surface 19 of the chisel 15, and is lifted slightly upward.

The movement in the traveling direction X causes the cutting portion 30 to move.
The working surface 29 of the cutting plate 26 cuts the soil of the relatively hard subsoil layer and cultivation layer and lifts it to the vicinity of the ground surface G. Lift up. In addition, the movement in the traveling direction X causes the divided and inclined action surfaces 49a and 49b of the reversing plate 46 of the reversing part 50 to move.
As a result, the soil supplied from the cutting plate 26 is split and inverted to the left and right sides in approximately the same amount toward the ground surface G. In addition, since the cut soil is reversed by half at the reversing part 50 left and right, the crushing property is good, the unevenness of the field after work is small,
In addition, it is possible to minimize the squatting of the field.

As described above, the chisel in a state of being joined into one
By cutting, crushing, and inverting the relatively hard soil at a deep position by the work 15 and the working body 51, as shown in FIG. 4, a relatively deep groove is formed, and the lower soil and the upper soil are formed. Are mixed with each other to obtain the drainage effect and the soil effect of the soil.

Here, for example, when the cutting plate 26 is greatly worn and it is necessary to replace the cutting plate 26,
Only the cutting plate is removed from the cutting plate mount 21, and a new cutting plate 26 is mounted on the cutting plate mount 21. Also, for example, the reversing plate 46
If the wear of is large and the reversing plate 46 needs to be replaced,
Only the reversing plate 46 is removed from the reversing plate mounting body 31, and a new reversing plate 46 is mounted on the reversing plate mounting body 31.

According to the partial deep tillage machine 1, the two cutting plates 26 (easy to wear) and the reversing plate 46, which are different from each other and have different degrees of wear, are positioned so that the working bodies 51 are adjacent to each other in the vertical direction. (Hard to wear), and since these two cutting plates 26 and the reversing plate 46 are detachable from the support frame 11 via the cutting plate mounting body 21 and the reversing plate mounting body 31, respectively. There is no need to replace the entire work body 51 based on partial wear, breakage, etc. of the work body 51, and the cutting plate 26 and the reversing plate 46 can be separately replaced at the optimal time according to each. In addition, the replacement cost can be reduced as compared with the conventional configuration, and the replacement operation can be facilitated.

Further, only the reversing unit 50 is replaced with other reversing units 50a, 50b, 50c, 50d, 50
e can be exchanged for different types of reversing parts 50, 50a, 50b, 50c, 50d, 50e corresponding to the work purpose, etc. It is not necessary to reduce the cost and the versatility is good.

For example, the reversing section 50a shown in FIG. 5 is used to improve the flow of soil to the left and right sides.
A substantially triangular cutting blade 61 is integrally formed at the upper center of the reversing plate 46 so as to protrude forward.

The reversing section 50b shown in FIG. 6 is of a rotary desk type, and has a reversing plate mounting body (not shown) removably mounted on the front side of a substantially central portion of the support frame 11 in the longitudinal direction. . In addition, a cutting plate 26
The soil lifted by the cutting plate 26 with the width dimension along the left-right direction larger than the thickness dimension along the left-right direction of the support frame 11 is positioned adjacent to the A reversing plate 46b, which is a reversing body as a divided working body such as a disc made of a rotatable metal or a synthetic resin, which is reversibly released on the surface, is detachably attached. This reversing plate 46b
Since the cutting soil is turned around one side while rotating about the support shaft 62, the reversibility is extremely good. The reversal direction may be left or right.

Further, the reversing part 50c shown in FIG. 7 is of a differential spatula type, and has a reversing plate mounting body 31c removably mounted on the front side of a substantially central portion in the longitudinal direction of the support frame 11. . The reversing plate mounting body 31c includes, for example, a connecting portion 63 and a spatula mounting portion 64 mounted on the connecting portion 63 so as to be adjustable in the front-rear position. Then, the soil lifted by the cutting plate 26 while being positioned adjacent to the cutting plate 26 and having a width dimension along the left-right direction that is greater than the thickness dimension along the left-right direction of the support frame 11 is removed. A reversing plate 46c, which is a reversing body as a divided working body that is reversingly released onto the ground surface toward the side, is detachably attached to the spatula attaching portion 64. The reversing plate 46c is composed of, for example, a pair of left and right two metal or synthetic resin fork spatula 65, 65, and each fork spatula 65 can be independently adjusted in the front-rear position. It is possible to adjust the direction of release by adjusting the fore and aft position of each fork spatula 65, and to adjust the crushing property.

The reversing section 50d shown in FIG. 8 has a reversing plate mounting body 31d removably mounted on the front side of a substantially central portion of the support frame 11 in the longitudinal direction. In addition, the reversing plate mounting body 31d is positioned adjacent to the cutting plate 26 and has a width dimension in the left-right direction that is greater than the thickness dimension of the support frame 11 in the left-right direction. A reversing plate 46d, which is a reversing body as a divided working body made of a metal or a synthetic resin, which reversibly discharges the soil lifted in step 1 toward one side and onto the ground surface, is detachably attached. The reversing plate 46d is in the shape of a rectangular plate that is slightly laterally elongated in the vertical direction, and is inclined at a predetermined inclination angle to one side with respect to the front in the traveling direction X.

Further, the reversing portion 50e shown in FIG. 9 has a reversing plate mounting body 31e removably mounted on the front side of a substantially central portion of the support frame 11 in the longitudinal direction. Further, the reversing plate mounting body 31e is positioned adjacent to the cutting plate 26 and has a width dimension along the left-right direction that is greater than the thickness dimension along the left-right direction of the support frame 11, and the cutting plate 26 A reversing plate 46e, which is a reversing body as a split working body made of a metal or a synthetic resin, that reversibly releases the soil lifted in the above to the one side and onto the ground surface, is detachably attached.

The reversing plate 46e is a rectangular plate elongated in the up-down direction, and has a curved shape so that the center in the left-right direction swells forward. Further, the reversing plate 46e is a rectangular plate that is slightly laterally elongated in the vertical direction, and is inclined at a predetermined inclination angle to one side with respect to the front in the traveling direction X. The reversing plate 46d and the reversing plate 46e shown in FIGS. 8 and 9 may be twisted so that the upper ends face one side.

In the above-described embodiment, the chisel 15 and the cutting plate mounting member 21 are described as separate members. However, for example, although not shown, the chisel 15 and the cutting plate mounting member 21 are made of metal or synthetic resin. It is good also as one with.

For example, although not shown, the reversing plate mounting body 31 and the reversing plate 46 may be integrated with a metal, a synthetic resin, or the like without being divided, thereby forming a reversing body as a divided working body. The cutting plate mounting body 21 and the cutting plate 26 may be integrated with a metal, a synthetic resin, or the like to form a cutting body that is a divided working body.

The cutting body to be lifted to the vicinity of the ground surface while cutting the soil may be constituted by only the cutting plate 26, or may be the cutting plate mounting body 21 and the cutting plate 26 which are integral with each other.
It is not limited to the one constituted by, for example, although not shown, one constituted by the chisel 15 and the cutting plate 26 integrated with each other, or the chisel 15 integrated with the cutting plate 21, the cutting plate mounting body 21 and It may be configured by a cutting plate 26 or the like.

Further, for example, although not shown, the cutting plate mounting member 21, the reversing plate mounting member 31, and the like are formed integrally with the support frame 11, or the cutting plate 26, the reversing plate 46, and the like are formed integrally with the cutting plate mounting member 21, It may be detachably attached to the support frame 11 without the intermediary of the plate attachment body 31 or the like.

Further, two cutting plates 26 having different degrees of wear are used.
The thickness of each of the reversing plate 46 and the reversing plate 46 may be set in accordance with the degree of wear. The reversing plate 46 may be thicker than the thickness of the reversing plate 46 which receives a small force and is hardly worn.

Further, the present invention is not limited to a two-piece construction having two working bodies 51, 51 in a pair of right and left, and is not limited to a one-piece construction or
Three, four or five or more types may be used.

The cutting plate 26 of the cutting unit 30 is shown in FIGS.
Like a reversing plate such as an inclining plate, it is inclined by a predetermined inclination angle with respect to the front which is the traveling direction X, or curved so that the central side in the left-right direction swells forward, or so that the upper end faces one side. It may have a twisted shape or the like.

Further, the working body 51 is composed of a plurality of, for example, three, four or more divided working bodies located vertically adjacent to each other along the support frame 11 at the front end position of the support frame 11. You may comprise.

The cutting plate 26, the reversing plate 46, and the like may be made of a stainless steel plate to which soil does not easily adhere, or an iron plate when soil does not easily adhere, other than the synthetic resin plates 28 and 48.

[0056]

According to the first aspect of the present invention, the working bodies are constituted by a plurality of divided working bodies which are positioned adjacent to each other in the up-down direction, and each of the plurality of divided working bodies is provided with respect to the support frame. It is detachable, so it is possible to avoid having to replace the entire work body based on partial wear, damage, etc. of the work body, so that the replacement cost can be reduced compared to the conventional configuration and replacement Work can be facilitated.

According to the second aspect of the present invention, since the cutting body and the reversing body located adjacent to each other are detachable from the support frame, the cutting body and the reversing body are separately exchanged. Therefore, the replacement cost can be reduced and the replacement operation can be facilitated as compared with the conventional configuration.

According to the third aspect of the present invention, the cutting plate and the reversing plate located adjacent to each other can be attached to and detached from the support frame via the cutting plate mounting body and the reversing plate mounting body, respectively. As a result, the cutting plate and the reversing plate can be replaced separately, so that the replacement cost can be reduced and the replacement operation can be facilitated as compared with the conventional configuration. In addition, according to the work purpose, field conditions, etc., since it can be appropriately replaced with another reversing plate and a reversing plate mounting body, there is no need to prepare a plurality of types of partial deep cultivators corresponding to the work purpose, field conditions, etc.
Good versatility.

According to the fourth aspect of the present invention, since the cutting plate and the reversing plate are each formed of a synthetic resin plate to which the soil is unlikely to adhere, soil adhesion to the cutting plate and soil to the reversing plate are reduced. It can control and work efficiently.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a partial deep tiller according to the present invention.

FIG. 2 is a front view of the partial plow.

FIG. 3 is a perspective view of a reversing unit of the partial plow.

FIG. 4 is a diagram showing a working state of the partial deep tillage machine.

FIG. 5 is a perspective view of another reversing part of the partial plow.

FIG. 6 is a perspective view of still another reversing unit of the partial plow.

FIG. 7 is a perspective view of still another reversing unit of the partial deep tillage machine.

FIG. 8 is a perspective view of still another reversing unit of the partial plow.

FIG. 9 is a perspective view of still another reversing unit of the partial plow.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Partial deep cultivator 11 Support frame 15 Chisel 21 Cutting plate mounting body 26 Cutting plate which is a cutting body as a divided working body 28, 48 Synthetic resin plate 31, 31c, 31d, 31e Reversing plate mounting body 46, 46b, 46c, 46d , 46e Reversing plate, which is a reversing body as a divided working body.

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Makoto Kobayashi 5155 Shiokawa, Oji, Maruko-cho, Nagano Prefecture Matsuyama Co., Ltd. Yamato Co., Ltd. F term (reference) 2B032 AA06 BA05 BB07 BB08 BB09 BB12 BB13 BB14

Claims (4)

[Claims] 1. A support frame, a chisel provided at a lower end portion of the support frame for cutting and lifting soil in a subsoil layer, and the soil being guided from the chisel, and cutting and lifting the soil to lift the ground surface. A work body that is turned upside down, wherein the work body is composed of a plurality of divided work bodies that are positioned adjacent to each other in a vertical direction, and the plurality of divided work bodies are each the support frame. Partial deep cultivator characterized by being detachable from the machine. 2. A cutting body which lifts up to the vicinity of the ground surface while cutting the soil, and a cutting body which is separate from the cutting body and is located adjacent to the cutting body, and which lifts the soil lifted by the cutting body. An inverted body that is turned upside down, and a support frame that supports the cut body and the inverted body, wherein the cut body and the inverted body are each detachable from the support frame. Characterized by partial deep tillage. 3. A support frame in the form of an elongated plate having a longitudinal direction in a vertical direction, a cutting plate mounting body provided on a lower front side of the support frame, and a detachably mounted to the cutting plate mounting body. A cutting plate that lifts up to near the ground surface while cutting the soil in a state having a width dimension along the left-right direction that is larger than a thickness dimension along the left-right direction of the frame, and a front side of a substantially central portion in a longitudinal direction of the support frame. A reversing plate mounting body detachably mounted, removably mounted on the reversing plate mounting body, positioned separately from the cutting plate and adjacent to the cutting plate, in the left-right direction of the support frame; A reversing plate for reversing and releasing the soil lifted by the cutting plate onto the ground surface in a state having a width dimension along the left-right direction that is greater than a thickness dimension along the same. Machine. 4. The partial deep tillage machine according to claim 3, wherein the cutting plate and the reversing plate are each formed of a synthetic resin plate to which soil is unlikely to adhere.