JP5646244B2

JP5646244B2 - 畦 coating machine

Info

Publication number: JP5646244B2
Application number: JP2010171382A
Authority: JP
Inventors: 遠藤　忠治; 忠治遠藤
Original assignee: KOBASHI INDUSTRIES CO., LTD.
Current assignee: KOBASHI INDUSTRIES CO., LTD.
Priority date: 2010-07-30
Filing date: 2010-07-30
Publication date: 2014-12-24
Anticipated expiration: 2030-07-30
Also published as: JP2012029613A

Description

本発明は、畦塗り機に関し、特に、旧畦を切り崩して土盛りを行う前処理部及び盛られた土を切り崩された旧畦上に塗り付ける整畦部を備えてなる畦塗り機に関する。 The present invention relates to a glazing machine, and more particularly, to a glazing machine provided with a pre-processing unit that cuts and fills an old paddle and a trimming unit that applies the piled soil onto the cut old paddle.

このような畦塗り機は、トラクタ等の走行機体に装着されて、走行機体の走行位置に対して側方にオフセットした位置で畦塗り作業を行うものであり、旧畦を切り崩して土盛りを行う前処理部と、盛られた土を切り崩された旧畦上に塗り付ける整畦部を備える。 Such a drapery machine is mounted on a traveling machine body such as a tractor, and performs a dreading operation at a position offset laterally with respect to the traveling position of the traveling machine body. A pre-processing unit and a trimming unit for applying the piled soil onto the old crushed shears are provided.

前処理部は、例えば、機体進行方向に沿って回転自在に支持された耕耘軸の外周面に耕耘軸の軸方向に所定距離をおいて突設された複数列の耕耘爪を有し、耕耘爪の回転によって旧畦の土を耕耘して跳ね上げ、この跳ね上げられた土を整畦部側に供給して整畦部によって旧畦に塗り付けるように構成されている。複数列の耕耘爪は、それぞれが耕耘軸から突出長さが略等しくなるように設けられて、これら耕耘爪の回転軌跡は略円柱状になっている。 The pre-processing unit has, for example, a plurality of rows of tilling claws projecting at a predetermined distance in the axial direction of the tilling shaft on the outer peripheral surface of the tilling shaft that is rotatably supported along the machine body traveling direction. It is configured such that the soil of the old fence is cultivated and raised by the rotation of the claws, and the raised soil is supplied to the trimming section and applied to the old mallet by the trimming section. The plurality of tilling claws are provided so that the protruding lengths from the tilling shaft are substantially equal, and the rotation trajectory of these tilling claws is substantially cylindrical.

このように、各耕耘爪の耕耘軸からの突出長さが等しい構成では、耕耘軸の前端側の１列目の耕耘爪に作用する土から受ける負荷が、２列目以降の耕耘爪に作用する負荷に比べて大きくなり、１列目の耕耘爪が損傷し易くなるばかりか、耕耘振動が比較的に大きくなる虞がある。 In this way, in the configuration in which the protruding lengths of the respective tilling claws from the tilling shaft are equal, the load received from the soil acting on the first row of tilling claws on the front end side of the tilling shaft acts on the second and subsequent rowing claws. As compared with the load to be increased, the tilling claws in the first row are easily damaged, and there is a possibility that the tilling vibration becomes relatively large.

そこで、特許文献１に記載されているように、前側の耕耘爪の耕耘軸からの突出長さが後側の耕耘爪の耕耘軸からの突出長さよりも短くなるように構成して、耕耘抵抗を分散して耕耘振動を低減する畦塗り機が提案されている。また、特許文献２には、複数列の耕耘爪の最前列よりも後列の少なくとも１本の耕耘爪の先端側を進行方向前側に向くように屈曲させることで、作業時に前側を向く耕耘爪で旧畦が耕耘されるので、最前列の耕耘爪に作用する負荷が小さくなり、耕耘振動やスラストが小さくなって安定した畦塗り作業が可能になる畦塗り機が提案されている。 Therefore, as described in Patent Document 1, the protrusion length of the front tilling nail from the tilling shaft is configured to be shorter than the protrusion length of the rear tilling nail from the tilling shaft. A cocoon coater that reduces tillage vibrations by dispersing cocoons has been proposed. Further, in Patent Document 2, a cultivating claw that faces the front side during work by bending the tip side of at least one cultivating claw in the rear row to the front in the traveling direction rather than the front row of the plurality of cultivating claws. Since the old culvert is cultivated, a load that acts on the cultivating claws in the foremost row is reduced, and a culling machine that enables stable culling work by reducing tillage vibration and thrust has been proposed.

しかしながら、これらの畦塗り機に設けられた耕耘爪は、耕耘軸から連続的に延びる縦刃部及び横刃部を有し、縦刃部及び横刃部は耕耘爪の回転方向と逆方向に湾曲し、横刃部は縦刃部の一側部側に湾曲するように構成されているので、縦刃部によって良好に砕土することができても、側方に湾曲した横刃部だけでは耕耘された土を整畦部側に十分に土寄せすることができない。 However, the tilling claws provided in these paddy coaters have a vertical blade portion and a horizontal blade portion extending continuously from the tilling shaft, and the vertical blade portion and the horizontal blade portion are in a direction opposite to the rotation direction of the tilling claws. Curved and the horizontal blade portion is configured to curve to one side of the vertical blade portion, so even if it can be crushed well by the vertical blade portion, only the horizontal blade portion curved to the side The cultivated soil cannot be sufficiently brought to the trimming section side.

そこで、本出願人は、特許文献３に記載されているように、耕耘爪の縦刃部に相当する爪本体部の先端部に土寄せ機能の板状の高い掬い板を設け、この掬い板によって砕土された土を整畦部側に土寄せする掬い爪を提案している。また特許文献４には、この掬い板が整畦部側に向くように耕耘軸の軸方向に対して傾けた掬い爪も提案されている。 Therefore, as described in Patent Document 3, the present applicant provides a plate-like high scooping plate having a soiling function at the tip of the claw body portion corresponding to the vertical blade portion of the tilling claw, and this scooping plate Proposes ugly claws that bring the crushed soil to the trimming section. Patent Document 4 also proposes a scooping claw that is inclined with respect to the axial direction of the tilling shaft so that the scooping plate faces the trimming unit.

特開２００２−２８１８０３号公報JP 2002-281803 A 特開２００７−２８２５１８号公報JP 2007-282518 A 特許第４３１８９６５号公報Japanese Patent No. 4318965 特開２００６−１０１７９４号公報JP 2006-101794 A

この掬い板は、土を掬い上げて整畦部側に土寄せするために板状に形成されているので、耕土内に存在する石等の異物に対して接触して衝撃を受け易い。このため、掬い爪は損傷し易く、また掬い爪を回転させる駆動部に作用する負荷も大きくなる。 Since this scooping board is formed in a plate shape for scooping up the soil and bringing it to the trimming unit side, it is in contact with foreign matter such as stones existing in the cultivated soil and is easily affected. For this reason, the scooping claw is easy to be damaged, and the load acting on the drive unit that rotates the scooping claw also increases.

本発明は、このような問題を解決するためになされたものであり、土を掬い上げて整畦部側に土寄せする機能を備え、また耕土内に存在する石等の異物に接触して衝撃を受けにくい前処理部を備えた畦塗り機を提供することを目的とする。 The present invention has been made in order to solve such a problem, and has a function of scooping up soil and bringing the soil to the trimming unit side, and also makes contact with foreign matters such as stones existing in the cultivated soil for impact. It is an object of the present invention to provide a glazing machine provided with a pretreatment unit that is not easily affected.

上記目的を達成するために本発明の畦塗り機は、走行機体に装着され、該走行機体の走行位置に対して側方にオフセットした位置に配置され、旧畦を切り崩して土盛りを行う前処理部及び盛られた土を切り崩された旧畦上に塗り付ける整畦部を備え、走行機体の走行とともに進行して畦塗り作業を行う畦塗り機において、前処理部は、所定方向に延びて回転自在に支持された耕耘軸と、耕耘軸の軸心方向に所定間隔を有して複数列に設けられ耕耘軸とともに回転する耕耘爪を備え、耕耘爪は、この取付基部から連続して延びる縦刃部及び横刃部を有し、縦刃部から横刃部にかけて回転方向と逆向きに弯曲するとともに、横刃部が縦刃部に対して一側方へ弯曲し、複数列に設けられた耕耘爪のうち最前列以外に耕耘軸の軸心方向前側へ向く横刃部を有した耕耘爪（実施の形態における第１耕耘爪６７）を配置し、該耕耘爪はこの耕耘爪よりも前列側に配置されて横刃部が耕耘軸の軸心方向後側に向く耕耘爪（実施の形態における第２耕耘爪６９’）と向き合うように配置され、これらの向き合う耕耘爪の内側は、これら耕耘爪によって囲まれる土壌保持空間を形成していることを特徴とする。 In order to achieve the above-mentioned object, the padding machine of the present invention is mounted on a traveling machine body, disposed at a position offset laterally with respect to the traveling position of the traveling machine body, and pre-processing for crushing an old hammer In a dredging machine that includes a trimming unit that coats the crushed soil and the piled up soil on the cut-out old dredger, and proceeds with the traveling of the traveling machine body to perform the dredging work, the pretreatment unit extends in a predetermined direction and rotates. A tilling shaft that is freely supported, and a tilling claw that is provided in a plurality of rows with a predetermined interval in the axial direction of the tilling shaft and that rotates with the tilling shaft, the tilling claw extends vertically from the mounting base. It has a blade part and a horizontal blade part, and it bends in the direction opposite to the rotation direction from the vertical blade part to the horizontal blade part, and the horizontal blade part is bent to one side with respect to the vertical blade part and is provided in a plurality of rows. Horizontal blades that face the axial direction front side of the tilling shaft other than the front row A tilling nail (first tilling nail 67 in the embodiment) having a plow is arranged, the tilling nail is arranged on the front row side with respect to the tilling nail, and the horizontal blade portion faces the rear side in the axial direction of the tilling shaft. is arranged to face the claw (second tilling claws 69 in the embodiment '), the inside of the tilling claws these face is it characterized by forming the soil holding space surrounded by these tilling claws.

本発明の「所定方向に延びて」とは、畦塗り機の進行方向に沿う方向や、畦塗り機の進行方向に対して斜めに傾く方向を含む。 The term “extending in a predetermined direction” in the present invention includes a direction along the traveling direction of the coater and a direction inclined obliquely with respect to the traveling direction of the coater.

本発明の「土壌保持空間」とは、耕耘軸の軸心方向前側へ向く横刃部を有した耕耘爪と、この耕耘爪よりも前列側に配置されて耕耘軸の軸心方向後側へ向く横刃部を有した耕耘爪とによって囲まれる空間をいい、これらの耕耘爪の回転によって耕耘された土壌を保持して移動させるための空間である。 The “soil holding space” of the present invention refers to a tilling claw having a horizontal blade portion that faces the axial direction front side of the tilling shaft, and is arranged on the front row side from the tilling claw to the rear side in the axial direction of the tilling shaft. It refers to a space surrounded by tilling claws having a horizontal blade portion facing, and is a space for holding and moving the soil cultivated by rotation of these tilling claws.

本発明の「耕耘爪と向き合う」とは、耕耘軸の軸心方向に所定間隔を有して配設された一対の耕耘爪が耕耘軸に対して同一位相又は異なる位相を有した状態で耕耘軸の軸心方向矢視において重なるように配置されることをいう。具体的には、土壌保持空間を形成する、耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪と、耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪とは、耕耘軸の軸方向矢視において、横刃部から縦刃部の少なくとも一部が重なるように配設される（請求項２）。 In the present invention, “facing a tilling claw” means that a pair of tilling claws arranged at a predetermined interval in the axial direction of the tilling shaft has the same phase or a different phase with respect to the tilling shaft. It is arranged so as to overlap in the axial direction of the shaft. Specifically, a tilling claw having a horizontal blade portion facing the axial direction front side of the tilling shaft and a tilling claw having a horizontal blade portion facing the axial direction rear side of the tilling shaft, which form a soil holding space, In the axial direction of the tilling shaft, the horizontal blade portion is arranged so that at least a part of the vertical blade portion overlaps (claim 2).

本発明の「横刃部から縦刃部の少なくとも一部が重なる」とは、横刃部同士が重なる場合や、横刃部と縦刃部が重なる場合や、縦刃部同士が重なる場合や、横刃部同士及び縦刃部同士が重なる場合を含む。 In the present invention, “at least part of the vertical blade portion overlaps from the horizontal blade portion” means that the horizontal blade portions overlap, the horizontal blade portion and the vertical blade portion overlap, or the vertical blade portions overlap each other, The case where the horizontal blade portions and the vertical blade portions overlap each other is included.

このように、耕耘軸の軸方向矢視において横刃部から縦刃部の少なくとも一部が重なるように配設されることで、互いに向き合う一対の耕耘爪の回転時に、これらの向き合った耕耘爪の横刃部や縦刃部の間に土が保持され、この保持された土は、これらの耕耘爪の回転に伴って移動して旧畦側に放てきされる。 In this way, when the pair of tilling claws are opposed to each other by being arranged so that at least a part of the vertical blade part overlaps from the horizontal blade part in the axial direction of the tilling axis, these facing tilling claws are rotated. The soil is held between the horizontal blade portion and the vertical blade portion, and the held soil moves with the rotation of the tillage claws and is released to the old ridge side.

また本発明は、土壌保持空間を形成する耕耘爪のうち耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪が、耕耘軸の軸方向矢視において、土壌保持空間を形成する耕耘爪のうち耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪に対して、回転方向後方側又は略同一位置に配置されていることを特徴とする（請求項３）。 Further, the present invention provides a tilling claw that has a horizontal blade portion that faces the front side in the axial direction of the tilling shaft among the tilling claws that form the soil holding space, and that forms a soil holding space when viewed in the axial direction of the tilling shaft. Among these, with respect to the tilling claw having a horizontal blade portion facing the rear side in the axial direction of the tilling shaft, it is arranged at the rear side in the rotation direction or at substantially the same position (claim 3).

本発明の「回転方向後方側」とは、耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪が、耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪に対して回転方向後方側に位相差を有して配置されていることをいう。また本発明の「略同一位置」とは、耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪が、耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪に対して同じ位相の位置に配置されていることをいう。 The “rotation direction rear side” of the present invention refers to a tilling claw having a horizontal blade portion that has a horizontal blade portion facing the axial center rear side of the tilling shaft. It is arranged with a phase difference on the rear side in the rotation direction. Further, the “substantially the same position” of the present invention refers to a tilling claw having a horizontal blade portion facing the axial direction rear side of the tilling shaft and a tilling claw having a horizontal blade portion facing the axial direction front side of the tilling shaft. It is arranged at the same phase position.

このように、耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪を、耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪に対して、回転方向後方側又は略同一位置に配置することで、前列側の耕耘爪によって耕耘された土壌を後列側の耕耘爪が容易に移動させて旧畦側に放てきすることができる。このため、土の移動がスムースになり、旧畦側に安定した量の土を供給することができる。 As described above, the tilling claw having the horizontal blade portion facing the axial direction front side of the tilling shaft is rearward in the rotational direction or substantially the same as the tilling claw having the horizontal blade portion facing the axial direction rear side of the tilling shaft. By disposing in the position, the soil cultivated by the front row side nail can be easily moved by the back row side nail and released to the old row side. For this reason, the movement of the soil is smooth, and a stable amount of soil can be supplied to the old dredge side.

また本発明は、土壌保持空間を形成する耕耘爪のうち耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪が、耕耘軸の軸方向矢視において、土壌保持空間を形成する耕耘爪のうち耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪に対して、回転方向前方側に配置されていることを特徴とする（請求項４）。 Further, the present invention provides a tilling claw that has a horizontal blade portion that faces the front side in the axial direction of the tilling shaft among the tilling claws that form the soil holding space, and that forms a soil holding space when viewed in the axial direction of the tilling shaft. The tilling claw having a horizontal blade portion facing the rear side in the axial direction of the tilling shaft is disposed on the front side in the rotation direction (claim 4).

本発明の「回転方向前方側」とは、耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪が、耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪に対して回転方向前方側に位相差を有して配置されていることをいう。 The “rotation direction front side” of the present invention refers to a tilling claw having a horizontal blade portion that has a horizontal blade portion facing the axial center rear side of the tilling shaft. It is arranged with a phase difference on the front side in the rotational direction.

このように、耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪を、耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪に対して、回転方向前方側に配置することで、後列側の耕耘爪によって移送される土が落ちそうになるのを前列側の耕耘爪が保持することができる。このため、旧畦側に供給される土の減少を抑えることができる。 In this way, the tilling claw having the horizontal blade portion facing the axial direction front side of the tilling shaft is arranged on the front side in the rotational direction with respect to the tilling claw having the horizontal blade portion facing the axial direction rear side of the tilling shaft. Thus, the tilling claw on the front row side can hold the soil transferred by the tilling claw on the back row side about to fall. For this reason, the decrease in the soil supplied to the old dredge side can be suppressed.

また本発明は、土壌保持空間を形成する耕耘爪のうち耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪の回転軌跡と、平面視において土壌保持空間を形成する耕耘爪のうち耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪の回転軌跡との間の軸心方向の間隔は、耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪の作用幅以下であることを特徴とする（請求項５）。 In addition, the present invention provides a rotation trajectory of a tilling claw having a horizontal blade portion facing the axial direction front side of the tilling axis among the tilling claws forming the soil holding space, and a tilling among the tilling claws forming the soil holding space in a plan view. The distance in the axial direction between the rotation trajectory of the tilling claw having the horizontal blade portion facing the axial rear side of the shaft is equal to or less than the working width of the tilling claw having the horizontal blade portion facing the axial front side of the tilling shaft. (Claim 5).

土壌保持空間を形成する一対の耕耘爪の回転軌跡間に間隔を設けることで、土壌保持空間を広げることができる。しかし、この間隔が広すぎると一対の耕耘爪の回転時に耕耘爪の作用が及ばなくなり、搬送されない土が生じて旧畦に供給される土の量が減少する。そこで、間隔は、耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪の作用幅以下にしている。なお、この間隔は、耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪の作用幅以下にしてもよい。 By providing an interval between the rotation trajectories of the pair of tilling claws that form the soil holding space, the soil holding space can be expanded. However, if this interval is too wide, the action of the tilling claws will not be exerted when the pair of tilling claws are rotated, so that soil that is not conveyed is generated, and the amount of soil supplied to the old straw is reduced. Therefore, the interval is set to be equal to or smaller than the working width of the tilling claw having a horizontal blade portion that faces the front side in the axial direction of the tilling shaft. In addition, this space | interval may be below the operation width | variety of the tilling nail | claw which has a horizontal blade part which faces the axial direction rear side of a tilling axis | shaft.

また本発明は、複数列に設けられた耕耘爪のうち最後列に配置された耕耘爪は、耕耘軸の軸心方向前側を向く横刃部を有していることを特徴とする（請求項６）。 Further, the present invention is characterized in that the tilling claw arranged in the last row among the tilling claws provided in a plurality of rows has a horizontal blade portion facing the front side in the axial direction of the tilling shaft. 6).

このように、最後列に配置された耕耘爪が耕耘軸の軸心方向前側を向く横刃部を有していることで、この耕耘爪よりも前列側に配置された耕耘爪との間で土壌保持空間を形成することができる。このため、土壌保持空間を広くすることができ、旧畦側に供給される土の量を増大させることができる。 Thus, the tilling claw arranged in the last row has a horizontal blade portion facing the front side in the axial direction of the tilling shaft, so that the tilling claw arranged on the front row side with respect to this tilling claw A soil holding space can be formed. For this reason, the soil holding space can be widened, and the amount of soil supplied to the old dredge side can be increased.

また本発明は、土壌保持空間を形成する耕耘爪のうち耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪の回転半径は、耕耘爪の軸方向前側に隣接して耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪の回転半径よりも小径であることを特徴とする（請求項７）。 The present invention also provides that the rotation radius of the tilling claw having a horizontal blade portion facing the axial direction front side of the tilling axis among the tilling claws forming the soil holding space is adjacent to the axial front side of the tilling axis. It is characterized in that it has a smaller diameter than the rotation radius of the tilling claw having a horizontal blade portion facing the rear side in the center direction (Claim 7).

このように、耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪の回転半径は軸心方向後側を向く横刃部を有する耕耘爪の回転半径よりも小径であることで、直接耕耘する割合が小さく前列側の耕耘爪によって耕耘された土壌を後列側の耕耘爪が前列側の耕耘爪とともに移動させて旧畦側に放てきすることになる。このため、後列側の耕耘爪に作用する負荷は比較的に小さくなり、土の移動がスムースになり、旧畦側に安定した量の土を供給することができる。 In this way, the rotation radius of the tilling claw having the horizontal blade portion facing the front side in the axial direction of the tilling shaft is smaller than the rotation radius of the tilling claw having the horizontal blade portion facing the rear side in the axial direction. The plowing rate is small and the soil cultivated by the front row side nail is moved along with the front row side nail and released to the old row side. For this reason, the load which acts on the tilling nail on the rear row side becomes relatively small, the movement of the soil becomes smooth, and a stable amount of soil can be supplied to the old hail side.

本発明によれば、複数列に設けられた耕耘爪のうち最前列以外に耕耘軸の軸心方向前側へ向く横刃部を有した耕耘爪を配置し、該耕耘爪はこの耕耘爪よりも前列側に配置されて横刃部が耕耘軸の軸心方向後側に向く耕耘爪と向き合うように配置され、これら向き合う耕耘爪の内側は、これら耕耘爪によって囲まれる土壌保持空間を形成することで、耕耘軸が回転すると、土壌保持空間を形成する、耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪と、耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪とによって、土壌を搬送して旧畦側に供給することができる。また土壌保持空間を形成するのは取付基部から連続して延びる縦刃部と横刃部を有し、縦刃部から横刃部にかけて回転方向と逆向きに弯曲するとともに、横刃部が縦刃部に対して一側方へ弯曲した耕耘爪であるので、耕耘爪は石等の異物を逃げやすくするので衝撃を受けにくい。このため、整畦部側に土寄せする機能を有するとともに、石等の異物に接触しても衝撃を受けにくい前処理部を備えた畦塗り機を提供することができる。 According to the present invention, among the tilling claws provided in a plurality of rows, the tilling claws having a horizontal blade portion facing the axial direction front side of the tilling shaft are arranged in addition to the front row, and the tilling claws are more than the tilling claws. Arranged so that the horizontal blade portion faces the tilling claw that is arranged on the front row side and faces the rear side in the axial direction of the tilling shaft, and the inside of these facing tilling claws forms a soil holding space surrounded by these tilling claws Thus, when the tillage shaft rotates, a tilling claw having a horizontal blade portion facing the axial direction front side of the tilling shaft and a lateral blade portion facing the axial direction rear side of the tilling shaft forming a soil holding space. The soil can be transported and supplied to the old side. In addition, the soil holding space has a vertical blade portion and a horizontal blade portion that continuously extend from the mounting base, and is bent in the direction opposite to the rotation direction from the vertical blade portion to the horizontal blade portion. Since the cultivating claw is bent to one side with respect to the blade portion, the cultivating claw makes it easy to escape foreign objects such as stones, and thus is less susceptible to impact. For this reason, it is possible to provide a wrinkle coater that has a function of bringing soil to the trimming unit side and includes a pretreatment unit that is not easily affected by contact with a foreign object such as a stone.

本発明の一実施の形態に係わる畦塗り機に設けられる前処理部を示し、同図（ａ）は前処理部の部分断面平面図であり、同図（ｂ）は前処理部の側面図である。The pre-processing part provided in the glazing machine concerning one embodiment of this invention is shown, The figure (a) is a fragmentary sectional top view of a pre-processing part, The figure (b) is a side view of a pre-processing part. It is. 本発明の一実施の形態に係わる畦塗り機の平面図を示す。1 is a plan view of a wrinkle coater according to an embodiment of the present invention. 本発明の一実施の形態に係わる畦塗り機の正面図を示す。1 shows a front view of a wrinkle coater according to an embodiment of the present invention. 本発明の一実施の形態に係わる畦塗り機の作業部の部分断面平面図を示す。The partial cross-sectional top view of the operation part of the drapery machine concerning one embodiment of this invention is shown. 本発明の一実施の形態に係わる前処理部に設けられる第１耕耘爪を示し、同図（ａ）は第１耕耘爪の側面図であり、同図（ｂ）は同図（ａ）のＶ矢視に相当する部分の第１耕耘爪の底面図である。The 1st tillage nail | claw provided in the pre-processing part concerning one embodiment of this invention is shown, The figure (a) is a side view of the 1st tillage nail, The figure (b) is the figure (a) of the figure. It is a bottom view of the 1st tilling nail of the part equivalent to V arrow. 本発明の一実施の形態に係わる前処理部に設けられる第２耕耘爪を示し、同図（ａ）は第２耕耘爪の側面図であり、同図（ｂ）は同図（ａ）のＶＩ矢視に相当する部分の第２耕耘爪の底面図である。The 2nd tillage nail | claw provided in the pre-processing part concerning one embodiment of this invention is shown, The figure (a) is a side view of the 2nd tillage nail, The figure (b) is the figure (a) of the figure. It is a bottom view of the 2nd tilling nail of the part equivalent to VI arrow. 本発明の一実施の形態に係わる前処理部に設けられた第１耕耘爪及び第２耕耘爪の取付方法を説明するための部分側面図を示し、同図（ａ）は第１耕耘爪を取り付けた前処理部の部分側面図であり、同図（ｂ）は第２耕耘爪を取り付けた前処理部の部分側面図である。The partial side view for demonstrating the attachment method of the 1st tillage nail | claw provided in the pre-processing part concerning one embodiment of this invention and the 2nd tillage nail | claw is shown, The figure (a) shows the 1st tillage nail. It is the partial side view of the attached pre-processing part, The same figure (b) is a partial side view of the pre-processing part which attached the 2nd tilling nail. 本発明の一実施の形態に係わる前処理部に設けられた第１耕耘爪及び第２耕耘爪の配置関係を説明するための図であり、同図（ａ）は２種類の耕耘爪が先端部が重なるように配置された場合を示し、同図（ｂ）は２種類の耕耘爪が先端部間に間隔を有して配置された場合を示す。It is a figure for demonstrating arrangement | positioning relationship of the 1st tilling nail | claw provided in the pre-processing part concerning one embodiment of this invention, and a 2nd tilling nail | claw, The figure (a) is a tip of 2 types of tilling claws. The case where it arrange | positions so that a part may overlap is shown, The same figure (b) shows the case where two types of tilling claws are arrange | positioned with a space | interval between front-end | tip parts. 本発明の一実施の形態に係わる畦塗り機に設けられる他の前処理部を示し、同図（ａ）は他の前処理部の部分断面平面図であり、同図（ｂ）は他の前処理部の側面図である。The other pre-processing part provided in the plastering machine concerning one embodiment of this invention is shown, The figure (a) is a fragmentary sectional top view of the other pre-processing part, The figure (b) is other It is a side view of a pre-processing part. 本発明の一実施の形態に係わる畦塗り機に設けられたシャーボルトを説明するための図を示し、同図（ａ）はオフセットフレーム内の動力伝達機構の部分斜視図であり、同図（ｂ）は前処理部の断面図である。BRIEF DESCRIPTION OF THE DRAWINGS The figure for demonstrating the shear bolt provided in the plastering machine concerning one embodiment of this invention is shown, The figure (a) is a fragmentary perspective view of the power transmission mechanism in an offset frame, b) is a cross-sectional view of the pretreatment section.

以下、本発明に係わる畦塗り機の最良の形態を図１から図１０に基づいて説明する。なお、畦塗り機には、各種のものがあるが、それらのうちの一つを例にして、以下、説明する。 DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode of a coater according to the present invention will be described below with reference to FIGS. There are various types of glazing machines, and one of them will be described below as an example.

畦塗り機１は、図２（平面図）に示すように、走行機体９０の後部に設けられた三点リンク連結機構(図示せず)に連結されて、走行機体９０の前進動に応じて畦塗り作業を行なうものである。畦塗り機１は、走行機体９０に装着されて走行機体９０からの動力が入力される入力軸４を備えた装着部１０と、装着部１０に設けられた旋回シリンダ３によって装着部１０から左右方向に移動可能なオフセット機構部２０と、オフセット機構部２０の移動端側（後端側）に垂直方向に延びる回動支点Ｏを設け、この回動支点Ｏを回動中心として水平方向に回動可能に配設されて入力軸４から伝達される動力によって走行機体９０の走行位置に対して側方にオフセットした位置で作業を行なう作業部５０とを有してなる。 As shown in FIG. 2 (plan view), the hull coater 1 is connected to a three-point link connecting mechanism (not shown) provided at the rear portion of the traveling machine body 90, and according to the forward movement of the traveling machine body 90. It is the one to perform the haze painting work. The wrinkle coater 1 is mounted on the traveling machine body 90 and is mounted on the left and right sides of the mounting part 10 by the mounting part 10 having the input shaft 4 to which power from the traveling machine body 90 is input and the turning cylinder 3 provided on the mounting part 10. An offset mechanism 20 that can move in the direction and a rotation fulcrum O that extends in the vertical direction are provided on the moving end side (rear end side) of the offset mechanism 20, and the rotation fulcrum O rotates in the horizontal direction around the rotation fulcrum O. And a working unit 50 that is movably disposed and works at a position offset laterally with respect to the traveling position of the traveling machine body 90 by the power transmitted from the input shaft 4.

装着部１０は、左右方向に延びるヒッチフレーム１１と、ヒッチフレーム１１の前側に取り付けられて走行機体９０の三点リンク連結機構に連結可能な連結フレーム１３とを有してなる。 The mounting portion 10 includes a hitch frame 11 that extends in the left-right direction, and a connection frame 13 that is attached to the front side of the hitch frame 11 and can be connected to the three-point link connection mechanism of the traveling machine body 90.

オフセット機構部２０は、前端側をヒッチフレーム１１に回動自在に連結されて後方側へ延びるオフセットフレーム２１と、オフセットフレーム２１の右側に沿って並設されて前端側がヒッチフレーム１１の右側端部に回動自在に連結されたリンク部材２５とを有してなる。リンク部材２５の後端側は、オフセットフレーム２１の後端部に回動自在に設けられた連結部材２３に回動自在に設けられている。オフセット機構部２０は、オフセットフレーム２１、リンク部材２５、ヒッチフレーム１１及び連結部材２３によって平行リンク機構を形成している。 The offset mechanism unit 20 is rotatably connected to the hitch frame 11 on the front end side and extends rearward. The offset mechanism unit 20 is arranged along the right side of the offset frame 21 and the front end side is the right end portion of the hitch frame 11. And a link member 25 that is pivotably connected to each other. The rear end side of the link member 25 is rotatably provided at a connecting member 23 that is rotatably provided at the rear end portion of the offset frame 21. The offset mechanism unit 20 forms a parallel link mechanism by the offset frame 21, the link member 25, the hitch frame 11, and the connecting member 23.

オフセットフレーム２１は、この後端部とヒッチフレーム１１の左側端部との間に枢結された前述した旋回シリンダ３の伸縮動作により左右方向に揺動可能である。オフセットフレーム２１内には動力伝達機構２８（図１０（ａ）参照）が設けられている。この動力伝達機構２８は、チェーン伝動機構であり、オフセットフレーム２１の後端側に作業部５０の回動支点Ｏと同軸上に回動自在に配設された従動軸２９を備えて、走行機体９０から入力軸４に伝達された動力を従動軸２９に伝達可能に構成されている。 The offset frame 21 can swing in the left-right direction by the expansion and contraction of the revolving cylinder 3 that is pivotally connected between the rear end portion and the left end portion of the hitch frame 11. A power transmission mechanism 28 (see FIG. 10A) is provided in the offset frame 21. The power transmission mechanism 28 is a chain transmission mechanism, and includes a driven shaft 29 that is rotatably disposed coaxially with the rotation fulcrum O of the working unit 50 on the rear end side of the offset frame 21. The power transmitted from 90 to the input shaft 4 can be transmitted to the driven shaft 29.

従動軸２９の下部には、これと同軸上に配置されて下方へ延びる主軸７が連結されている。主軸７は、従動軸２９の回転動とともに回転して、作業部５０への動力伝達が可能である。主軸７の外側には主軸７を覆う主軸ケースが配設され、この主軸ケースの上端部はオフセットフレーム２１の後端下部に回動可能に連結され、主軸ケースの下端部には作業部５０が固定された状態で取り付けられている。 A main shaft 7 that is arranged coaxially with the driven shaft 29 and extends downward is connected to the lower portion of the driven shaft 29. The main shaft 7 rotates with the rotation of the driven shaft 29 and can transmit power to the working unit 50. A spindle case covering the spindle 7 is disposed outside the spindle 7, and an upper end portion of the spindle case is rotatably connected to a lower portion of the rear end of the offset frame 21, and a working portion 50 is provided at a lower end portion of the spindle case. It is mounted in a fixed state.

作業部５０は、連結部材２３と主軸ケースとの間に繋がれた伸縮シリンダ４１の伸縮により回動支点Ｏに対して回動可能であるとともに、伸縮シリンダ４１の伸縮規制によりオフセット機構２０の揺動に対して作業部５０の作業方向が走行機体９０の進行方向Ａと平行になるように保持される。 The working unit 50 can be rotated with respect to the rotation fulcrum O by expansion / contraction of the expansion / contraction cylinder 41 connected between the connecting member 23 and the spindle case, and the offset mechanism 20 can be swung by the expansion / contraction restriction of the expansion / contraction cylinder 41. The working direction of the working unit 50 is held so as to be parallel to the traveling direction A of the traveling machine body 90 with respect to the movement.

作業部５０は、詳細は後述するが、圃場の周辺に沿って形成された旧畦の上部を切り崩す天場処理部５１と、切り崩した土の土盛りを行なう前処理部６１と、盛られた土を切り崩された旧畦上に塗り付ける整畦部８０とを有してなる。 As will be described in detail later, the working unit 50 includes a heaven processing unit 51 that cuts the upper part of the old fence formed along the periphery of the field, a pre-processing unit 61 that piles up the cut soil, and the accumulated soil. And a trimming unit 80 that is applied to the old iron that has been cut.

整畦部８０は、図４を更に追加して説明すると、左右方向に延びて回転動自在に支持された回転軸８１に取り付けられた多面体ドラム８２と、多面体ドラム８２の右側端部に取り付けられて横方向に延びる円筒部８３とを有してなる。整畦部８０は整畦動力伝達ケース８７を介して主軸ケースに連結されて支持される。整畦動力伝達ケース８７内には図示しない整畦側動力伝達機構が内蔵され、この整畦側動力伝達機構は主軸７に繋がって、主軸７からの動力を整畦部８０に伝達可能に構成されている。 The trimming unit 80 will be further described with reference to FIG. 4. The polyhedral drum 82 is attached to a rotating shaft 81 that extends in the left-right direction and is rotatably supported, and is attached to the right end of the polyhedral drum 82. And a cylindrical portion 83 extending in the lateral direction. The trimming unit 80 is connected to and supported by the spindle case via a trimming power transmission case 87. A straightening power transmission mechanism (not shown) is built in the straightening power transmission case 87, and this straightening power transmission mechanism is connected to the main shaft 7 so that the power from the main shaft 7 can be transmitted to the straightening section 80. Has been.

前処理部６１は、前処理動力伝達ケース６４を介して主軸ケースに連結されて支持される。前処理動力伝達ケース６４内には、主軸７からの動力を受けて回転駆動する前処理側駆動軸６６を有した動力伝達機構６５が内蔵されている。前処理側駆動軸６６の先端部に前処理部６１が接続されている。前処理部６１の回転軸となる耕耘軸６２は前処理側駆動軸６６と同軸上に接続されている。前処理部６１の耕耘軸６２は、平面視において旧畦Ｋ側に傾斜している。前処理部６１の詳細については後述する。 The preprocessing unit 61 is connected to and supported by the main shaft case via a preprocessing power transmission case 64. In the pretreatment power transmission case 64, a power transmission mechanism 65 having a pretreatment side drive shaft 66 that rotates by receiving power from the main shaft 7 is incorporated. A preprocessing unit 61 is connected to the tip of the preprocessing side drive shaft 66. A tilling shaft 62 serving as a rotation shaft of the pretreatment unit 61 is connected coaxially to the pretreatment side drive shaft 66. The tilling shaft 62 of the pretreatment unit 61 is inclined to the old ridge K side in a plan view. Details of the preprocessing unit 61 will be described later.

天場処理部５１は、天場動力伝達ケース５４を介して前処理部６１に支持されている。天場処理部５１の回転軸５２には複数の耕耘爪５３が放射状に取り付けられ、天場処理部５１の回転軸５２は平面視において旧畦Ｋ側に傾斜して配置されている。天場動力伝達ケース５４内には動力伝達機構５５が設けられ、動力伝達機構５５は前処理部６１の耕耘軸６２に接続されて前処理部６１からの動力を天場処理部５１に伝達可能である。 The heaven processing unit 51 is supported by the preprocessing unit 61 via the heaven power transmission case 54. A plurality of tilling claws 53 are radially attached to the rotation shaft 52 of the heaven field processing unit 51, and the rotation shaft 52 of the heaven field processing unit 51 is arranged to be inclined toward the old ridge K side in a plan view. A power transmission mechanism 55 is provided in the heaven power transmission case 54, and the power transmission mechanism 55 is connected to the tilling shaft 62 of the preprocessing unit 61 and can transmit power from the preprocessing unit 61 to the heaven processing unit 51. It is.

天場動力伝達ケース５４は天場処理部５１の基端側に配置されて天場処理部５１の回転軸５２に対して直交する方向に延び、この基端部は前処理部６１の耕耘軸６２の先端部に対して上下回動自在に取り付けられている。このため、天場動力伝達ケース５４は基端部を回動中心として上下方向に回動自在である。 The celestial power transmission case 54 is disposed on the base end side of the celestial processing unit 51 and extends in a direction orthogonal to the rotation axis 52 of the celestial processing unit 51, and this base end portion is a tilling shaft of the preprocessing unit 61. It is attached to the front end portion of 62 so as to be rotatable up and down. For this reason, the heavenly power transmission case 54 is rotatable in the vertical direction with the base end portion as the rotation center.

前処理部６１は、図３に示すように、後述する第１耕耘爪６７、第２耕耘爪６９、第３耕耘爪７０の先端部が旧畦Ｋに対向した位置にあるときに、その先端部が旧畦Ｋの上部から下部側へ移動する矢印Ｘ方向、即ちダウンカット方向に回転する。 As shown in FIG. 3, the front end of the first tillage claw 67, the second tillage claw 69, and the third tillage claw 70, as shown in FIG. The part rotates in the direction of the arrow X moving from the upper part to the lower part of the old basket K, that is, in the downcut direction.

前処理部６１は、前述した耕耘軸６２と、耕耘軸６２の外周に放射状に取り付けられて耕耘軸６２とともに回転する第１耕耘爪６７、第２耕耘爪６９、第３耕耘爪７０を有してなる。 The preprocessing unit 61 includes the above-described tilling shaft 62, a first tilling claw 67, a second tilling claw 69, and a third tilling claw 70 that are attached to the outer periphery of the tilling shaft 62 and rotate together with the tilling shaft 62. It becomes.

第１耕耘爪６７、第２耕耘爪６９、第３耕耘爪７０は、図１（ａ）、図４に示すように、耕耘軸６２の軸心方向前側から後側に所定距離を有して４列に配設され、各列に耕耘軸６２の周方向に１８０度の位相差を有して同じ種類の耕耘爪が２本取り付けられている。第１耕耘爪６７及び第２耕耘爪６９は、耕耘軸６２の外周に突設されたホルダ６２ａにボルト６２ｂ等の締結手段を介して着脱可能に取り付けられている（図７（ａ）及び図７（ｂ）参照）。 As shown in FIG. 1A and FIG. 4, the first tillage claw 67, the second tillage claw 69, and the third tillage claw 70 have a predetermined distance from the front side in the axial direction of the tillage shaft 62 to the rear side. Arranged in four rows, two rows of the same kind of tilling claw having a phase difference of 180 degrees in the circumferential direction of the tilling shaft 62 are attached to each row. The first tillage claw 67 and the second tillage claw 69 are detachably attached to a holder 62a projecting from the outer periphery of the tillage shaft 62 via fastening means such as a bolt 62b (FIG. 7A and FIG. 7). 7 (b)).

第１耕耘爪６７は、図５（ａ）、図５（ｂ）、図７（ａ）に示すように、ホルダ６２ａに取り付けられる取付基部６７ａから連続して延びる縦刃部６７ｂ及び横刃部６７ｃを有し、縦刃部６７ｂから横刃部６７ｃにかけて回転方向と逆向きに弯曲するとともに、横刃部６７ｃが縦刃部６７ｂに対して一側方に弯曲して内側にすくい面６７ｄを形成している。図中、斜線部分が横刃部６７ｃを示し、また線Ｂは縦刃部６７ｂと横刃部６７ｃとの境界となる折曲開始線を示している。この折曲開始線Ｂの取付基部６７ａに対する位置Ａは第１耕耘爪６７の爪長さを爪全長Ｌとしたときの半分よりもより先端側に位置して、第１耕耘爪６７は縦刃部６７ｂの長さが長くなっている。また横刃部６７ｃの基端から先端までの先曲げ高さｂ１は、後述する第２耕耘爪６９の先曲げ高さｂ２（図６（ｂ）参照）よりも低い。このため、第１耕耘爪６７は、土を移動させる機能が第２耕耘爪６９よりも小さい。 As shown in FIGS. 5 (a), 5 (b), and 7 (a), the first tillage claw 67 has a vertical blade portion 67b and a horizontal blade portion that continuously extend from a mounting base portion 67a attached to the holder 62a. 67c and bends in the direction opposite to the rotation direction from the vertical blade portion 67b to the horizontal blade portion 67c, and the horizontal blade portion 67c bends to one side with respect to the vertical blade portion 67b to form a rake face 67d on the inner side. Forming. In the figure, the hatched portion indicates the horizontal blade portion 67c, and the line B indicates the bending start line that becomes the boundary between the vertical blade portion 67b and the horizontal blade portion 67c. The position A of the bending start line B with respect to the attachment base 67a is positioned more on the tip side than half when the claw length of the first tillage claw 67 is the claw length L, and the first tillage claw 67 is a vertical blade. The length of the part 67b is long. Further, a pre-bending height b1 from the base end to the front end of the horizontal blade portion 67c is lower than a pre-bending height b2 (see FIG. 6B) of a second tillage claw 69 described later. For this reason, the first tilling claw 67 has a smaller function of moving the soil than the second tilling claw 69.

一方、第２耕耘爪６９は、図６（ａ）、図６（ｂ）、図７（ｂ）に示すように、ホルダ６２ａに取り付けられる取付基部６９ａから連続して延びる縦刃部６９ｂ及び横刃部６９ｃを有し、縦刃部６９ｂから横刃部６９ｃにかけて回転方向と逆向きに弯曲するとともに、横刃部６９ｃが縦刃部６９ｂに対して一側方に弯曲して内側にすくい面６９ｄを形成している。本実施例では、横刃部６９ｃは後方側に湾曲している。図中、斜線部分が横刃部６９ｃを示し、線Ｂは縦刃部６９ｂと横刃部６９ｃとの境界となる折曲開始線を示している。この折曲開始線Ｂの取付基部６９ａに対する位置Ａは爪長さを爪全長Ｌとしたときの略半分の位置に位置している。このため、第２耕耘爪６９の縦刃部６９ｂの長さは第１耕耘爪６７（図５（ａ）参照）の縦刃部６７ｂの長さよりも短い。また横刃部６９ｃの基端から先端までの先曲げ高さｂ２は、前述した第１耕耘爪６７の先曲げ高さｂ１よりも大きい。このため、第２耕耘爪６９は、土を移動させる機能が第１耕耘爪６７よりも大きい。 On the other hand, as shown in FIGS. 6 (a), 6 (b), and 7 (b), the second tilling claw 69 includes a vertical blade portion 69b and a horizontal blade portion that continuously extend from an attachment base portion 69a attached to the holder 62a. It has a blade part 69c and is bent in the direction opposite to the rotation direction from the vertical blade part 69b to the horizontal blade part 69c, and the horizontal blade part 69c is bent to one side with respect to the vertical blade part 69b and is raked inward. 69d is formed. In the present embodiment, the horizontal blade portion 69c is curved backward. In the figure, the hatched portion indicates the horizontal blade portion 69c, and the line B indicates the bending start line that becomes the boundary between the vertical blade portion 69b and the horizontal blade portion 69c. The position A of the bending start line B with respect to the attachment base 69a is located at a substantially half position when the claw length is the claw full length L. For this reason, the length of the vertical blade portion 69b of the second tillage claw 69 is shorter than the length of the vertical blade portion 67b of the first tillage claw 67 (see FIG. 5A). Further, the pre-bending height b2 from the base end to the front end of the horizontal blade portion 69c is larger than the pre-bending height b1 of the first tillage claw 67 described above. For this reason, the second tilling claw 69 has a larger function of moving the soil than the first tilling claw 67.

第１耕耘爪６７及び第２耕耘爪６９の縦刃部６７ｂ、６９ｂ、及び横刃部６７ｃ、６９ｃのそれぞれには、略一定幅を有した刃縁部６７ｅ、６９ｅが形成されており、この刃縁部６７ｅ、６９ｅは片刃である。本実施例では前述の第１耕耘爪６７及び第２耕耘爪６９を採用しているが、これらの爪に限るものではなく、圃場条件等によって折曲開始線の位置Ａや先曲げ高さｂ１の異なる耕耘爪を選択できる。 Blade edge portions 67e and 69e having a substantially constant width are formed on the vertical blade portions 67b and 69b and the horizontal blade portions 67c and 69c of the first and second tilling claws 67 and 69, respectively. The blade edge portions 67e and 69e are single blades. In the present embodiment, the first tillage claw 67 and the second tillage claw 69 described above are employed. However, the present invention is not limited to these claws, and the position A of the bending start line and the bending height b1 are not limited to the field conditions. You can choose different tillage nails.

このように構成された第１耕耘爪６７は、図１（ａ）及び図１（ｂ）に示すように、耕耘軸６２の最後列に設けられている。この第１耕耘爪６７は、横刃部６７ｃが耕耘軸６２の軸心方向前側に向くように配設されている。なお、耕耘軸６２の最前列には、形状的には第１耕耘爪６７と類似しているが回転半径が第１耕耘爪６７よりも小さい第３耕耘爪７０が設けられている。この第３耕耘爪７０は、横刃部７０ｃが耕耘軸６２の軸心方向後側に向くように配設されている。 The first tilling claw 67 configured in this way is provided in the last row of the tilling shaft 62 as shown in FIGS. 1 (a) and 1 (b). The first tillage claw 67 is disposed such that the horizontal blade portion 67 c faces the front side in the axial direction of the tillage shaft 62. The frontmost row of the tilling shaft 62 is provided with a third tilling claw 70 that is similar in shape to the first tilling claw 67 but has a smaller radius of rotation than the first tilling claw 67. The third tilling claw 70 is disposed so that the horizontal blade portion 70 c faces the rear side in the axial direction of the tilling shaft 62.

最前列から２列目及び３列目には第２耕耘爪６９が設けられている。これらの第２耕耘爪６９は、その横刃部６９ｃが後列側に向くように配設されている。 Second tillage claws 69 are provided in the second and third rows from the front row. These second tilling claws 69 are arranged so that the horizontal blade portions 69c face the rear row side.

２列目に配設された第２耕耘爪６９'と最後列に配設された第１耕耘爪６７は、耕耘軸６２の軸心方向において向き合うように配設されている。本実施例では、耕耘軸６２の軸方向矢視において、第１耕耘爪６７の縦刃部６７ｂ及び横刃部６７ｃが、第２耕耘爪６９'の縦刃部６９ｂ及び横刃部６９ｃと重なるように配設されている（図１（ｂ）参照）。 The second tilling claw 69 ′ arranged in the second row and the first tilling claw 67 arranged in the last row are arranged to face each other in the axial direction of the tilling shaft 62. In the present embodiment, the vertical blade portion 67b and the horizontal blade portion 67c of the first tillage claw 67 overlap with the vertical blade portion 69b and the horizontal blade portion 69c of the second tillage claw 69 ′ when viewed in the axial direction of the tillage shaft 62. (Refer FIG.1 (b)).

また、最後列の第１耕耘爪６７は、耕耘軸６２の軸方向矢視において、２列目の第２耕耘爪６９’に対して回転方向が略同一位置に配置されている（図１（ｂ）参照）。さらに、最後列の第１耕耘爪６７の回転軌跡と２列目の第２耕耘爪６９’の回転軌跡との間の耕耘軸６２の軸心方向の間隔Ｗは、平面視において第１耕耘爪６７の先曲げ高さｂ１（図５（ｂ）参照）以下になっている。また、最後列の第１耕耘爪６７の回転半径Ｒ１は、２列目の第２耕耘爪６９’の回転半径Ｒ２よりも小径に構成されている。 Further, the first tilling claw 67 in the last row is arranged at a substantially same position in the rotation direction with respect to the second tilling claw 69 ′ in the second row in the axial direction of the tilling shaft 62 (FIG. 1 ( b)). Furthermore, the distance W in the axial direction of the tilling shaft 62 between the rotation trajectory of the first tillage claw 67 in the last row and the rotation trajectory of the second tillage claw 69 'in the second row is the first tillage claw in plan view. It is equal to or less than the pre-bending height b1 of 67 (see FIG. 5B). The rotation radius R1 of the first tilling claw 67 in the last row is configured to be smaller than the rotation radius R2 of the second tilling claw 69 'in the second row.

なお、最後列の第１耕耘爪６７の回転軌跡と２列目の第２耕耘爪６９’の回転軌跡との間の耕耘軸６２の軸心方向の間隔Ｗは、図８（ａ）に示すように、第１耕耘爪６７の先端が第２耕耘爪６９’の先端内側に位置して第１耕耘爪６７の先曲げ高さｂ１よりも小さい重なり幅を有するようにしてもよい。また、間隔Ｗは、図８（ｂ）に示すように、第１耕耘爪６７の先曲げ高さｂ１よりも大きな間隔Ｗ（本実施例では先曲げ高さｂの約１．５倍の間隔）にしてもよい。但し、この間隔Ｗは、第１耕耘爪６７の横刃部６７ｃが土を移動させることができる幅（以下、作用幅と記す）の範囲内であることが必要である。 The interval W in the axial direction of the tilling shaft 62 between the rotation trajectory of the first tillage claw 67 in the last row and the rotation trajectory of the second tillage claw 69 ′ in the second row is shown in FIG. As described above, the tip end of the first tillage claw 67 may be positioned on the inner side of the tip end of the second tillage claw 69 ′ and may have an overlapping width smaller than the first bend height b 1 of the first tillage claw 67. Further, as shown in FIG. 8B, the interval W is larger than the prebending height b1 of the first tillage claw 67 (in this embodiment, about 1.5 times the prebending height b). ). However, the interval W needs to be within a range of a width (hereinafter referred to as an action width) in which the horizontal blade portion 67c of the first tillage claw 67 can move the soil.

このように最後列の第１耕耘爪６７及び２列目の第２耕耘爪６９’を耕耘軸６２に配設することで、図１（ａ）及び図４に示すように、最後列の第１耕耘爪６７及び２列目の第２耕耘爪６９’の内側に、これら耕耘爪によって耕耘された土を保持して移動させることが可能な土壌保持空間７２が形成される。即ち、土壌保持空間７２は、第１耕耘爪６７の縦刃部６７ｂおよび横刃部６７ｃと、第２耕耘爪６９’の縦刃部６９ｂおよび横刃部６９ｃによって囲まれる空間である。 Thus, by arranging the first tillage claw 67 in the last row and the second tillage claw 69 ′ in the second row on the tillage shaft 62, as shown in FIGS. A soil holding space 72 capable of holding and moving the soil cultivated by these tilling claws is formed inside the first tilling claws 67 and the second tilling claws 69 ′ in the second row. That is, the soil holding space 72 is a space surrounded by the vertical blade portion 67b and the horizontal blade portion 67c of the first tillage claw 67 and the vertical blade portion 69b and the horizontal blade portion 69c of the second tillage claw 69 '.

このように構成された前処理部６１の耕耘軸６２が回転すると、第１耕耘爪６７、第２耕耘爪６９，６９’及び第３耕耘爪７０の縦刃部６７ｂ、６９ｂ、７０ｂが土中に突入して土を切断するとともに、横刃部６７ｃ、６９ｃ、７０ｃが土中に突入して土壌保持空間７２内の土を切削して耕起し、この耕起された土は、第１耕耘爪６７及びの第２耕耘爪６９’の横刃部６７ｃ、６９ｃのすくい面６７ｄ、６９ｄで抱きかかえられて土中から抜け出た後に後述する前処理部６１に設けられたカバー体７３（図３参照）の内側に沿って案内されて旧畦側に放てきされて整畦部８０に供給される。 When the tilling shaft 62 of the pretreatment unit 61 configured in this way rotates, the vertical blade portions 67b, 69b, 70b of the first tilling claws 67, the second tilling claws 69, 69 ′, and the third tilling claws 70 are in the ground. The horizontal blades 67c, 69c, and 70c enter the soil and cut and cultivate the soil in the soil holding space 72, and the cultivated soil is the first cultivated soil. A cover body 73 (see FIG. 5) provided in the pre-processing unit 61 described below after being held by the rake faces 67d and 69d of the horizontal tillage portions 67c and 69d of the second tillage claw 67 and the second tillage claw 69 '. 3), and is discharged to the old heel side and supplied to the trimming unit 80.

耕耘軸６２の最前列から３列目に渡って設けられた第３耕耘爪７０及び第２耕耘爪６９、６９’は、耕耘軸６２の軸心方向前側に配置された耕耘爪の回転半径Ｒｆが軸心方向後側に配置された耕耘爪の回転半径Ｒｒよりも小さくなるように構成されている。このため、畦塗り作業時における耕耘抵抗が確実に分散されて、耕耘振動を比較的に小さくすることができ、安定した畦塗り作業を行うことができる。 The third tilling claw 70 and the second tilling claws 69, 69 ′ provided from the frontmost row to the third row of the tilling shaft 62 are rotation radii Rf of the tilling claws arranged on the front side in the axial direction of the tilling shaft 62. Is configured to be smaller than the rotation radius Rr of the tilling claw disposed on the rear side in the axial direction. For this reason, the tillage resistance at the time of the padding operation is reliably dispersed, the vibration of the tilling can be made relatively small, and a stable padding operation can be performed.

また、これら第１耕耘爪６７、第２耕耘爪６９、６９’及び第３耕耘爪７０は、耕耘軸６２が平面視において旧畦側に傾斜しているため、旧畦に対して斜めに切り込みその方向に土を移動させることになるので、土の流れの方向を整畦部側にすることができる。このため、石等の異物も逃げやすく過負荷の虞も小さく、整畦部８０に供給される土の流れがスムースとなり安定した畦塗り作業を行うことができる。 Further, the first tillage claws 67, the second tillage claws 69, 69 ′, and the third tillage claws 70 are obliquely cut with respect to the old tack because the tilling shaft 62 is inclined to the old tack side in a plan view. Since the soil is moved in that direction, the direction of the soil flow can be set to the trimming unit side. For this reason, foreign substances such as stones can easily escape and there is little risk of overload, and the flow of the soil supplied to the trimming unit 80 is smooth, and stable scouring work can be performed.

さて、耕耘軸６２に支持された第１耕耘爪６７、第２耕耘爪６９、６９’及び第３耕耘爪７０は、図３、図４に示すように、その後方側と上部から旧畦側と反対側の側部にかけて及ぶ側とその前方側がカバー体７３によって覆われている。カバー体７３は、前記耕耘爪の前方側及び後方側を覆う前板部７３ａ及び後板部７３ｃと、前板部７３ａ及び後板部７３ｃに接続されて前記耕耘爪の外周上部から旧畦側と反対側の側部を覆う円弧状板部７３ｂを有してなる。なお、旧畦側は土量調整用のガイドカバー７３ｄやサイドカバー７３ｅを有している。 As shown in FIGS. 3 and 4, the first tillage claw 67, the second tillage claws 69, 69 ′ and the third tillage claw 70 supported by the tillage shaft 62 are arranged from the rear side and the upper side to the old tillage side. The side extending to the opposite side and the front side thereof are covered with a cover body 73. The cover body 73 is connected to the front plate portion 73a and the rear plate portion 73c that cover the front side and the rear side of the tilling nail, and the front plate portion 73a and the rear plate portion 73c, and the old hail side from the upper outer periphery of the tilling nail It has the circular-arc-shaped board part 73b which covers the side part on the opposite side. The old ridge side has a soil cover adjustment guide cover 73d and a side cover 73e.

前板部７３ａは、前記耕耘爪の回転軌跡の前方側の周縁部に沿って回転軌跡の上部から旧畦側と反対側に円弧帯状に延び、前板部７３ａの下部は耕耘軸６２よりも下方に位置している。後板部７３ｃは、前記耕耘爪の回転軌跡の後方側であって旧畦側と反対側の上部から耕耘軸６２よりも下方の位置に扇状に延びるように形成されている。 The front plate portion 73a extends in a circular arc shape from the upper part of the rotation trajectory along the peripheral edge on the front side of the rotation trajectory of the tilling claw, and the lower portion of the front plate portion 73a is more than the tilling shaft 62. Located below. The rear plate portion 73c is formed so as to extend in a fan shape from the upper part on the rear side of the rotation trajectory of the tilling claw and on the opposite side to the old rod side to a position below the tilling shaft 62.

円弧状板部７３ｂは、前板部７３ａと後板部７３ｃの各周縁部に沿って接続され、円弧状板部７３ｂの旧畦側と反対側端部は前処理部６１の耕耘軸６２よりも下方に配置され、円弧状板部７３ｂの上側は前記耕耘爪の回転軌跡の外側に沿って隙間を有して耕耘軸６２の略真上まで延びている。このため、前処理部６１が回転すると、第１耕耘爪６７及び第２耕耘爪６９’によって搬送される土は、円弧状板部７３ｂの内側に沿って上方へ移動して円弧状板部７３ｂの旧畦側端から放てきされる。 The arc-shaped plate portion 73b is connected along the peripheral edge portions of the front plate portion 73a and the rear plate portion 73c, and the end portion on the opposite side of the arc-shaped plate portion 73b from the tilling shaft 62 of the pretreatment unit 61 is connected. Also, the upper side of the arc-shaped plate portion 73b extends to a position just above the tilling shaft 62 with a gap along the outer side of the rotation trajectory of the tilling claw. For this reason, when the pretreatment part 61 rotates, the soil conveyed by the first tillage claw 67 and the second tillage claw 69 ′ moves upward along the inner side of the arcuate plate part 73b and the arcuate plate part 73b. It is released from the old end of the ridge.

このように構成された畦塗り機１によって畦塗り作業を行うと、図４に示すように、前処理部６１の第１耕耘爪６７、第２耕耘爪６９、６９’及び第３耕耘爪７０によって圃場の土が耕耘されて旧畦側に放てきされる。この放てきされた土は、整畦部８０によって旧畦上に塗り付けられて、整形された新畦が形成される。 When the padding operation is performed by the padding machine 1 configured in this way, as shown in FIG. 4, the first tilling claws 67, the second tilling claws 69, 69 ′, and the third tilling claws 70 of the pre-processing unit 61. As a result, the soil in the field is cultivated and released to the old side. The released soil is smeared on the old paddle by the trimming unit 80 to form a shaped new paddle.

ここで、前処理部６１は、前述したように、耕耘軸６２の軸心方向前側へ向く横刃部６７ｃを有した最後列の第１耕耘爪６７と、この耕耘爪の前列側に配置されて耕耘軸６２の軸心方向後側へ向く横刃部６９ｃを有して第１耕耘爪６７と向き合うように配置された２列目の第２耕耘爪６９’を備え、これらの耕耘爪の内側にはこれら耕耘爪によって囲まれる土壌保持空間７２が形成されている。このため、耕耘軸６２が回転すると、土壌保持空間７２を形成する、耕耘軸６２の軸心方向前側を向く横刃部６７ｃを有する第１耕耘爪６７と、耕耘軸６２の軸心方向後側を向く横刃部６９ｃを有する第２耕耘爪６９’とによって、圃場の土を搬送して旧畦側に供給することができる。また土を搬送するのは適正配置された最後列と２列目の耕耘爪６７、６９’であり、これら耕耘爪は、取付基部から連続して延びる縦刃部及び横刃部を有し、縦刃部から横刃部にかけて回転方向と逆向きに弯曲するとともに、横刃部が縦刃部に対して一側方へ弯曲する形状のため、石等の異物を逃げやすくするので衝撃を受けにくい。このため、整畦部側に土寄せする機能を有するとともに、石等の異物に接触しても衝撃を受けにくい前処理部６１を提供することができる。 Here, as described above, the pretreatment unit 61 is disposed on the first row of first tilling claws 67 having the horizontal blade portion 67c facing the axial direction front side of the tilling shaft 62 and on the front row side of the tilling claws. A second row of second tilling claws 69 ′ arranged so as to face the first tilling claws 67 with a horizontal blade portion 69 c facing the axial rear side of the tilling shaft 62. A soil holding space 72 surrounded by these tilling claws is formed inside. For this reason, when the tilling shaft 62 rotates, the first tilling claw 67 having the horizontal blade portion 67 c that forms the soil holding space 72 and faces the front side in the axial direction of the tilling shaft 62, and the rear side in the axial direction of the tilling shaft 62. With the second tilling claw 69 ′ having the horizontal blade portion 69 c that faces the soil, the soil in the field can be transported and supplied to the old culvert side. Also, it is the last and properly arranged tilling claws 67, 69 ′ that convey soil, and these tilling claws have a vertical blade portion and a horizontal blade portion that continuously extend from the mounting base, Curved in the direction opposite to the rotation direction from the vertical blade to the horizontal blade, and the horizontal blade is bent to one side with respect to the vertical blade. Hateful. Therefore, it is possible to provide the pretreatment unit 61 that has a function of bringing the soil toward the trimming unit side and is not easily subjected to an impact even if it comes into contact with a foreign object such as a stone.

なお、前処理部６１は前述した構造に限るものではなく、図９（ａ）及び図９（ｂ）に示すように、耕耘軸６２の２列目に横刃部６７ｃが後列側を向くように配置した第１耕耘爪６７'を設け、最後列に横刃部６７が前列側を向くように配置した第１耕耘爪６７を設け、これらの第１耕耘爪６７、６７’を耕耘軸６２の軸心方向において向き合うように配設された前処理部６１’でもよい。本実施例では、耕耘軸６２の軸方向矢視において、最後列の第１耕耘爪６７の縦刃部６７ｂ及び横刃部６７ｃが、２列側の第１耕耘爪６７’の縦刃部６７ｂと重なるように配設され、これらの第１耕耘爪６７、６７’の内側に土壌保持空間７２が形成されている。なお、前処理部６１’の他の第２耕耘爪６９、第３耕耘爪７０の配置の関係は、前述した前処理部６１の第２耕耘爪６９、第３耕耘爪７０の関係と同様なので、その説明は省略する。 Note that the pretreatment unit 61 is not limited to the structure described above, and as shown in FIGS. 9A and 9B, the horizontal blade portion 67 c faces the rear row side in the second row of the tilling shaft 62. The first tillage claws 67 ′ arranged in the first row are provided, the first tillage claws 67 are arranged in the last row so that the horizontal blade portion 67 faces the front row side, and the first tillage claws 67, 67 ′ are arranged on the tillage shaft 62. The pre-processing part 61 'arrange | positioned so that it may face in the axial center direction may be sufficient. In the present embodiment, when the tilling shaft 62 is viewed in the axial direction, the vertical blade portion 67b and the horizontal blade portion 67c of the first tilling claw 67 in the last row are the vertical blade portions 67b of the first tilling claws 67 ′ in the two rows. The soil holding space 72 is formed inside the first tilling claws 67 and 67 ′. In addition, since the relationship of arrangement | positioning of the other 2nd tilling claw 69 and the 3rd tilling claw 70 of the other pretreatment part 61 'is the same as that of the 2nd tilling claw 69 and the 3rd tilling claw 70 of the pre-processing part 61 mentioned above. The description is omitted.

このように、耕耘軸６２の２列目に横刃部６７ｃが後列側を向くようにした第１耕耘爪６７'を設け、最後列に横刃部６７ｃが前列側を向くようにした第１耕耘爪６７を設けることで、前述した第１耕耘爪６７及び第２耕耘爪６９'を備えた前処理部６１（図１（ａ）参照）と同様の効果を得ることができる。 As described above, the first tilling claw 67 ′ in which the horizontal blade portion 67c faces the back row side is provided in the second row of the tilling shaft 62, and the first blade in which the horizontal blade portion 67c faces the front row side in the last row. By providing the tilling claw 67, it is possible to obtain the same effect as that of the pretreatment unit 61 (see FIG. 1A) including the first tilling claw 67 and the second tilling claw 69 ′ described above.

ところで、土を搬送して旧畦側に供給するための手段は、前処理部６１に適正配置された第１耕耘爪６７及び第２耕耘爪６９’であり、これらの耕耘爪は石等の異物を逃げ易くするので衝撃を受けにくい。このため、第１耕耘爪６７及び第２耕耘爪６９’が損傷し、また駆動系に過負荷が作用して損傷する虞は小さい。しかしながら、これらの耕耘爪や駆動系の損傷をより確実に防止するために、前処理部６１に大きな負荷が作用すると、駆動系への動力伝達を遮断し、また耕耘爪６７等への動力伝達を遮断するためのシャーボルトを畦塗り機１に設けてもよい。 By the way, the means for transporting the soil and supplying it to the old tiller side are the first tilling claws 67 and the second tilling claws 69 ′ properly arranged in the pretreatment unit 61, and these tilling claws are made of stone or the like. Because it makes it easier for foreign objects to escape, it is less susceptible to impact. For this reason, there is little possibility that the first tilling claw 67 and the second tilling claw 69 ′ are damaged and the drive system is damaged by an overload. However, in order to prevent damage to these tilling claws and the drive system more reliably, when a large load is applied to the pretreatment unit 61, power transmission to the drive system is interrupted, and power transmission to the tilling claws 67 and the like. The shear coater 1 may be provided with a shear bolt for shutting off.

例えば、図１０（ａ）（斜視図）に示すように、オフセットフレーム内に設けられた動力伝達機構２８の従動軸２９にシャーボルト３０を介してスプロケット３１を連結する。このようにすると、前処理部６１の第１耕耘爪６７、第２耕耘爪６９,６９’及び第３耕耘爪７０に石等が衝突して大きな負荷が作用すると、過負荷は動力伝達機構６５（図４参照）等を介して従動軸２９に伝達されてシャーボルト３０を破断する。このため、前処理部６１の第１耕耘爪６７、第２耕耘爪６９,６９’、第３耕耘爪７０及び駆動系が損傷する事態を確実に防止することができる。 For example, as shown in FIG. 10A (perspective view), a sprocket 31 is connected via a shear bolt 30 to a driven shaft 29 of a power transmission mechanism 28 provided in an offset frame. In this manner, when a large load is applied to the first tillage claws 67, the second tillage claws 69, 69 ′ and the third tillage claws 70 of the pretreatment unit 61 and a large load is applied, the overload is caused by the power transmission mechanism 65. The shear bolt 30 is broken by being transmitted to the driven shaft 29 via (see FIG. 4) or the like. For this reason, the situation where the 1st tillage nail | claw 67 of the pre-processing part 61, the 2nd tillage nail | claw 69,69 ', the 3rd tillage claw 70, and a drive system can be prevented reliably.

また、図１０（ｂ）（断面図）に示すように、前処理部６１の耕耘軸６２に筒状の回転支持体７５を回転可能に外嵌し、この回転支持体７５の外周に設けられたホルダ６２ａに第１耕耘爪６７及び第２耕耘爪６９,６９’をボルト６２ｂ等で固定し、回転支持体７５を、シャーボルト３０を介して耕耘軸６２に固定するようにしてもよい。このようにすると、前処理部６１の第１耕耘爪６７及び第２耕耘爪６９,６９’に石等が衝突して大きな負荷が作用すると、過負荷は回転支持体７５を介してシャーボルト３０に伝達されてシャーボルト３０を破断する。このため、第１耕耘爪６７及び第２耕耘爪６９,６９’やこれに接続された動力系が損傷する事態を確実に防止することができる。 Further, as shown in FIG. 10B (cross-sectional view), a cylindrical rotation support body 75 is rotatably fitted on the tilling shaft 62 of the pretreatment unit 61 and provided on the outer periphery of the rotation support body 75. The first tillage claw 67 and the second tillage claws 69 and 69 ′ may be fixed to the holder 62 a with bolts 62 b and the rotation support 75 may be fixed to the tillage shaft 62 via the shear bolt 30. In this way, when a large load is applied to the first tillage claws 67 and the second tillage claws 69, 69 ′ of the pretreatment unit 61 and a large load is applied, the overload is applied to the shear bolt 30 via the rotary support 75. And the shear bolt 30 is broken. For this reason, the situation where the 1st tillage nail | claw 67 and the 2nd tillage nail | claw 69,69 'and the power system connected to this can be damaged can be prevented reliably.

１畦塗り機
６１、６１’ 前処理部
６２耕耘軸
６７第１耕耘爪（耕耘爪）
６７ｂ、６９ｂ、７０ｂ縦刃部
６７ｃ、６９ｃ、７０ｃ横刃部
６９、６９’ 第２耕耘爪（耕耘爪）
７０第３耕耘爪（耕耘爪）
７２土壌保持空間
８０整畦部
９０走行機体 DESCRIPTION OF SYMBOLS 1 Tail coater 61, 61 'Pre-processing part 62 Tilling shaft 67 1st tilling nail (tilling nail)
67b, 69b, 70b Vertical blade portion 67c, 69c, 70c Horizontal blade portion 69, 69 'Second tillage claw (cultivation claw)
70 Third tillage nail (cultivation nail)
72 soil holding space 80 trimming section 90 traveling aircraft

Claims

走行機体に装着され、該走行機体の走行位置に対して側方にオフセットした位置に配置され、旧畦を切り崩して土盛りを行う前処理部及び盛られた土を切り崩された旧畦上に塗り付ける整畦部を備え、前記走行機体の走行とともに進行して畦塗り作業を行う畦塗り機において、
前記前処理部は、前記畦塗り機の進行方向に沿う方向又は前記畦塗り機の進行方向に対して斜めに傾く方向に延びて回転自在に支持された耕耘軸と、
前記耕耘軸の軸心方向に所定間隔を有して複数列に設けられ前記耕耘軸とともに回転する耕耘爪を備え、
前記耕耘爪は、この取付基部から連続して延びる縦刃部及び横刃部を有し、前記縦刃部から前記横刃部にかけて回転方向と逆向きに弯曲するとともに、前記横刃部が前記縦刃部に対して一側方へ弯曲し、
前記複数列に設けられた前記耕耘爪のうち最前列以外に前記耕耘軸の軸心方向前側へ向く横刃部を有した耕耘爪を配置し、該耕耘爪はこの耕耘爪よりも前列側に配置されて横刃部が前記耕耘軸の軸心方向後側に向く耕耘爪と向き合うように配置され、
これらの向き合う耕耘爪の内側は、これら耕耘爪によって囲まれる土壌保持空間を形成していることを特徴とする畦塗り機。 Attached to the traveling machine body and arranged at a position offset laterally with respect to the traveling position of the traveling machine body, the pretreatment unit for cutting the old culvert and depositing the soil, and the piled up old soiled paint. In a scissor coater that includes a trimming unit and that progresses along with the traveling of the traveling machine body to perform a smearing operation,
The pretreatment unit extends in a direction along the traveling direction of the paddy coater or in a direction inclined obliquely with respect to the traveling direction of the paddy coater, and a tilling shaft supported rotatably.
A tilling claw provided in a plurality of rows with a predetermined interval in the axial direction of the tilling shaft and rotating together with the tilling shaft;
The tilling claw has a vertical blade portion and a horizontal blade portion that continuously extend from the mounting base, and is bent in a direction opposite to the rotation direction from the vertical blade portion to the horizontal blade portion. Fold one side to the vertical blade,
In addition to the front row of the tilling claws provided in the plurality of rows, a tilling nail having a horizontal blade portion facing toward the front side in the axial direction of the tilling shaft is disposed, and the tilling claws are located on the front row side of the tilling claws. It is arranged so that the horizontal blade part faces the tilling claw facing the axial direction rear side of the tilling shaft,
A padding machine characterized in that the inside of these facing tilling claws forms a soil holding space surrounded by these tilling claws.

前記土壌保持空間を形成する、前記耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪と、前記耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪とは、前記耕耘軸の軸方向矢視において、横刃部から縦刃部の少なくとも一部が重なるように配設されていることを特徴とする請求項１に記載の畦塗り機。 The tilling claw having a horizontal blade portion facing the axial center front side of the tilling shaft and the tilling claw having a horizontal blade portion facing the axial center rear side of the tilling shaft, which form the soil holding space, are the tilling 2. The wrinkle coater according to claim 1, wherein at least a part of the vertical blade portion is overlapped with the horizontal blade portion in the axial direction of the shaft.

前記土壌保持空間を形成する耕耘爪のうち前記耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪は、前記耕耘軸の軸方向矢視において、前記土壌保持空間を形成する耕耘爪のうち前記耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪に対して、回転方向後方側又は略同一位置に配置されていることを特徴とする請求項１又は２に記載の畦塗り機。 Among the tilling claws that form the soil holding space, the tilling claws having a horizontal blade portion that faces the front side in the axial direction of the tilling shaft are the tilling claws that form the soil holding space when viewed in the axial direction of the tilling shaft. The hook according to claim 1, wherein the hook is disposed at a rear side in the rotational direction or substantially at the same position with respect to the tilling claw having a horizontal blade portion facing the rear side in the axial direction of the tilling shaft. Coating machine.

前記土壌保持空間を形成する耕耘爪のうち前記耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪は、前記耕耘軸の軸方向矢視において、前記土壌保持空間を形成する耕耘爪のうち前記耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪に対して、回転方向前方側に配置されていることを特徴とする請求項１又は２に記載の畦塗り機。 Among the tilling claws that form the soil holding space, the tilling claws having a horizontal blade portion that faces the front side in the axial direction of the tilling shaft are the tilling claws that form the soil holding space when viewed in the axial direction of the tilling shaft. Of the tilling claws having a horizontal blade portion facing the rear side in the axial direction of the tilling shaft, the tacking machine according to claim 1 or 2, wherein the tilling claws are arranged on the front side in the rotation direction.

前記土壌保持空間を形成する耕耘爪のうち前記耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪の回転軌跡と、平面視において前記土壌保持空間を形成する耕耘爪のうち前記耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪の回転軌跡との間の軸心方向の間隔は、前記耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪の作用幅以下であることを特徴とする請求項１から４のいずれかに記載の畦塗り機。 Among the tilling claws forming the soil holding space, the rotation trajectory of the tilling claws having a horizontal blade portion facing the front side in the axial direction of the tilling shaft, and the tilling shaft among the tilling claws forming the soil holding space in a plan view. The distance in the axial direction between the rotation trajectory of the tilling claw having the horizontal blade portion facing the rear side in the axial direction is equal to or less than the working width of the tilling claw having the horizontal blade portion facing the axial direction front side of the tilling shaft. The wrinkle coater according to any one of claims 1 to 4, wherein:

前記複数列に設けられた前記耕耘爪のうち最後列に配置された耕耘爪は、前記耕耘軸の軸心方向前側を向く横刃部を有していることを特徴とする請求項１から５のいずれかに記載の畦塗り機。 The tilling claw arranged in the last row among the tilling claws provided in the plurality of rows has a horizontal blade portion facing the front side in the axial direction of the tilling shaft. A coater according to any one of the above.

前記土壌保持空間を形成する耕耘爪のうち前記耕耘軸の軸心方向前側を向く横刃部を有する耕耘爪の回転半径は、前記耕耘爪の軸方向前側に隣接して前記耕耘軸の軸心方向後側を向く横刃部を有する耕耘爪の回転半径よりも小径であることを特徴とする請求項１から６のいずれかに記載の畦塗り機。 Among the tilling claws forming the soil holding space, the rotation radius of the tilling claws having a horizontal blade portion facing the axial front side of the tilling shaft is adjacent to the axial front side of the tilling axis and the axial center of the tilling shaft 7. The coater according to claim 1, wherein the coater has a smaller diameter than a rotation radius of a tilling claw having a horizontal blade portion facing the rear side in the direction.