JP2004135642A

JP2004135642A - Levee forming machine

Info

Publication number: JP2004135642A
Application number: JP2002337278A
Authority: JP
Inventors: Takeo Higuchi; 樋口　健夫; Masasuki Yokohama; 横浜　雅透
Original assignee: Sasaki Corp
Current assignee: Sasaki Corp
Priority date: 2002-10-15
Filing date: 2002-10-15
Publication date: 2004-05-13

Abstract

<P>PROBLEM TO BE SOLVED: To provide a levee-forming machine that can achieve smooth levee formation to give solid levees in cultivated fields with the soil of high dryness. <P>SOLUTION: The levee-forming machine is provided with a soil-mounding apparatus that is allowed to move along the place on which a levee is to be formed and mounds the soil on the place, and provided with a levee-forming apparatus that is arranged backward in the moving direction of the mounding apparatus. And the levee forming apparatus is equipped with a cylindrical rotor that is allowed to pass on the upper face of the soil-mounded place for levee formation, as it rotates itself, and is equipped with a plurality of divided pieces that are attached on the power supply side of the cylindrical rotor and the diameter of the rotor is made larger as it goes on the rotation power supply side, of which the surface is radially divided, so as to have a face inclined toward the center of the cylindrical rotor. The divided pieces are rotatably supported around the support axis arranged parallel to the radial face and are made variable in the lead angle in the running direction. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、畦形成機の畦形成ディスクの構成に関する。
【０００２】
【従来の技術】
従来の畦形成機の畦形成ディスクの構成として、同一出願人による特許第３１４８６７８号公報によるものが知られている。この公報による畦形成機は、トラクタに装着され畦形成箇所に沿って移動され、畦形成箇所に土を盛り上げ状態に供給する土盛装置と、土盛装置の移動方向の後方に設置される畦形成装置とを有し、畦形成装置は土を盛り上げ状態とされた畦形成箇所の上を回転しながら通過させる円筒回転体と、円筒回転体の回転駆動力供給側に取り付けられ回転駆動供給側にいく程径大となり、円筒回転体の中央に向けた傾斜面を有するとともに、表面は放射状の分割片に分割され各々の分割片は進行方向に対して前進角を設けてなり、隣接する分割片の相互は逃げ角をもち、側面視にてジグザグ状に連結される円錐回転体とからなるものである。
【０００３】
【発明が解決しようとする課題】
従来技術の構成では、上記各々の分割片により形成される前進角及び逃げ角は角度が固定されるため、圃場の土の乾燥度合いにより畦形成作業がうまくいく場合といかない場合にバラツキが発生し、特に土の乾燥度合いが進んだ圃場での畦形成作業は畦側面への締め込み力が弱いという課題がある。
【０００４】
【課題を解決するための手段】
上記課題を解決するために、畦形成箇所に沿って移動され、畦形成箇所に土を盛り上げ状態に供給する土盛装置と、土盛装置の移動方向の後方に設置される畦形成装置とを有し、畦形成装置は土を盛り上げ状態とされた畦形成箇所の上面を回転しながら通過させる円筒状回転体と、円筒状回転体の回転駆動力供給側に取り付けられ回転駆動力供給側にいく程径大となり、円筒状回転体の中央に向けた傾斜面を有するとともに表面は放射状に分割される分割片を複数設け、この分割片は放射面に対し平行状に設けた支点軸に軸支され、進行方向に対する前進角を変位可能とし、又、軸支される分割片を弾性体により畦側面方向へ弾性保持し、この分割片は傾斜面に対し平行状に設けられた基盤に取り付け可能とし、基盤と分割片の取付部には弾性体を介在させ前進角を設け、この弾性体の弾性力により分割片の前進角変位可能としたことを特徴とした畦形成機を提供するものである。
【０００５】
【作用】
上記のような構成にすることにより、特に土の乾燥度合いが進んだ圃場での畦形成作業を行なう場合、分割片を変位させ初期設定の前進角を大きくとることにより多くの盛土を抱き込みながら畦側面に対し塗り込むので強固な畦を形成することができ、更に分割片を弾性保持させ畦側面への塗り込み圧を向上させ且つ自動追随させるので、強固な畦が形成でき仕上りもきれいである。
【０００６】
【実施例】
本発明を実施した図面に基づいて構成を説明する。図１は本発明を実施した畦形成機の平面図で、図２は同畦形成機の後面作用図である。図３は同畦形成機の畦形成ディスクの斜視図であり、図４は同畦形成機に備えた円錐状回転体の外周平面図である。図５は同畦形成機に備えた円錐状回転体の裏側正面図である。図６は他の実施例における畦形成ディスクの斜視図で、図７は他の実施例における円錐状回転体の外周平面図である。
【０００７】
図１，図２において、１１はフレームで前方に突設した装着マスト１２を有し、装着マストは図示されていないが走行車であるトラクタの三点リンクに装着される。１３はミッションケースで、フレーム１１の略中央部に配置され前方に向け入力軸１４が突設される。１５はユニバーサルジョイントで図示されていないがトラクタＰＴＯ軸と入力軸１４とに連結し、ＰＴＯ軸の駆動力が伝達される。進行方向に対し水平方向に直交するフレーム１１の内部には駆動軸１６が設けられ、入力軸１４に伝達された駆動力をミッションケース１３の内部に設けたベベルギヤ１３ａ，１３ｂを介し減速させ、駆動軸１６へ駆動力が伝達しフレーム１１の一方端に設けられる土盛装置Ａと畦形成装置Ｂとをそれぞれ駆動させる。
【０００８】
土盛装置Ａは砕土爪２１を爪軸２２の軸芯に対し放射状に複数本設けたロータリ２３と、このロータリ２３の一方端を固着するロータリ出力軸２４とを有し回転駆動させるロータリ駆動ケース２５により構成され、ロータリ駆動ケース２５内部には、前記駆動軸１６に固着したスプロケット２６ａとロータリ出力軸２４の内方端に固着したスプロケット２６ｂとをチェーン２７により巻架しさらに減速させ、ロータリ出力軸２４に固着されたロータリ２３を進行方向の順方向に回転させる。
【０００９】
Ｂの畦形成装置は土盛装置Ａの後方に配置され、進行方向の順方向に回転自在とした畦形成ディスク３と、この畦形成ディスク３を回転駆動させるディスク駆動ケース４１とから構成される。ディスク駆動ケース４１は内部に前記駆動軸１６の端部に固着したスプロケット４２ａと、ディスク駆動ケース４１から水平方向に突出するディスク出力軸４３の内方端に固着したスプロケット４２ｂとをチェーン４４により巻架しさらに減速させ、ディスク出力軸４３に固着したディスク３を進行方向の順方向に回転させる。
【００１０】
畦形成ディスク３は円筒状回転体３１と円錐状回転体３２とから構成されている。円筒状回転体３１は円筒形状で、前記ディスク出力軸４３の外方端部に取り付けられ、ディスク出力軸４３の回転により土盛装置Ａにより砕土を盛り上げ状態とされた畦形成箇所Ｈの上面を進行方向に順回転させ畦形成するものである。又、円錐状回転体３２はディスク出力軸４３に取り付けた円筒状回転体３１の内端外周部より回転駆動力供給側すなわちトラクタ側にいく程径大となるほぼ円錐台状の傾斜面を有し、円筒状回転体３１とともに順回転し、土盛装置Ａにより砕土盛り上げ状態とされた畦形成箇所Ｈの側面を畦形成するものである。
これら円筒状回転体３１と円錐状回転体３２により構成される畦形成ディスク３の周速は、トラクタ作業速度すなわち走行速度より速く回転するよう設定され、畦形成面をスリップ状態で締め上げる。
【００１１】
図３に示すように円錐状回転体３２の表面は放射状に分割された複数の分割片３２ａを有し、ａは畦形成側面との当接面でｂは逃げ巾である。図４に示すように、円錐状回転体３２の径大部外周面を平面視すると分割片３２ａはジクザグ状となり、進行方向ｆに対して前進角αが設けられ隣接する分割片３２ａの相互は逃げ角βをもって連結される。
【００１２】
図５において、分割片３２ａは円錐状回転体３２の傾斜面の裏側でほぼ平行状に間隔をおいて設けた基板３３から延びる傾斜面に平行状とした支点軸３４に、分割片３２ａに形成した当接面ａの裏側で回転方向Ｗの前方に設けた開口部を有する回動ブラケット３２ｂが回動自在に軸支されることにより、前進角αを変位可能とし、逃げ巾ｂを増減することができる。
【００１３】
又、分割片３２ａの裏側で回転方向Ｗの後方には係合ピン３２ｃが基板３３方向に向け突設し、基板３３には係合ピン３２ｃを通過させ係合する径合穴３５が設けられ、分割片３２ａと基板３３の間で係合ピン３２ｃの周囲には弾性体である圧縮バネ３６を介在させ、基板３３の係合穴３５を通過させた係合ピン３２ｃの端部をストッパ３７にて固定する。
分割片３２ａと基板３３の間に圧縮バネ３６を介在させることにより、分割片３２ａを畦側面方向へ弾性保持可能となる。
【００１４】
又、係合ピン３２ｃの端部には複数のストッパ穴３８が設けられ、ストッパピン３７を任意のストッパ穴３８に挿入することにより初期設定の前進角αを調整することができる。
【００１５】
このようにすることで、土盛装置Ａにより畦形成箇所Ｈを砕土し土を盛り上げ状態にし、円錐状回転体３２に備えた分割片３２ａの初期設定の前進角αを所望の角度に変位させ適量の盛土を抱き込みながら回転し、畦側面に対しては基板３３と分割片３２ａの間に介在させた圧縮バネ３６の弾性力により盛土をしっかりと塗り込むことができ強固な畦が形成される。
【００１６】
図６と図７は他の実施例を示すもので、円錐状回転体３２の表面は放射状に分割された複数の分割片５１ａを有し、分割片５１ａはほぼ扇型の独立片から構成される。ａは畦形成側面との当接面でｂは逃げ巾である。円錐状回転体３２の径大部外周面を平面視すると、円錐状回転体３２の傾斜面にほぼ平行状に設けた基板５２と前進角αを有して設けられる分割片５１ａとの間には、弾性体であるゴム５３を介在させる。ゴム５３にはネジ穴５３ａ，５３ｂがそれぞれ設けられ、ゴム５３は基板５２にビス５４ａに固定され、分割片５１ａはビス５４ｂにてゴム５３に取付けられ、取付部を重複させながら円錐状回転体３２を構成する。
【００１７】
それぞれ隣接する相互の分割片５１ａで前進角αと逃げ角βを構成する。分割片５１ａと基板５２の間に弾性体であるゴム体を介在させることにより、分割片５１ａの前進角αを常に畦側面方向に保持し、外圧が加わることにより変位可能としてある。
【００１８】
このようにすることで、土盛装置Ａにより畦形成箇所Ｈを砕土し土を盛り上げ状態にし、円錐状回転体３２の分割片５１ａがより多くの盛土を抱き込みながら回転し、畦側面に対してゴム５３の弾性力によりしっかりと塗り込むことができる。
【００１９】
【効果】
以上のように構成したので、土盛の抱き込み量を多くすることができ、弾性体の弾性力により盛土をしっかりと畦形成箇所に塗り込むことができ、複数の分割片が回転することで畦側面に対する断続圧が連続して行われ叩き作用を発揮し、特に土の乾燥度合いが高い圃場での畦形成作業で効果を発揮し強固できれいな仕上りの畦が形成できる。
【図面の簡単な説明】
【図１】本発明を実施した畦形成機の平面図
【図２】同畦形成機の後面作用図
【図３】同畦形成機の畦形成ディスクの斜視図
【図４】同畦形成機に備えた円錐状回転体の外周平面図
【図５】同畦形成機に備えた円錐状回転体の裏側正面図
【図６】他の実施例における畦形成ディスクの斜視図
【図７】他の実施例における円錐状回転体の外周平面図
【符号の説明】
１１　　フレーム
１２　　装着マスト
１３　　ミッションケース
１４　　入力軸
１５　　ユニバーサルジョイント
１６　　駆動軸
２１　　砕土爪
２２　　爪軸
２３　　ロータリ
２４　　ロータリ出力軸
２５　　ロータリ駆動ケース
２６ａ，２６ｂ　スプロケット
２７　　チェーン
３　　畦形成ディスク
３１　　円筒状回転体
３２　　円錐状回転体
３２ａ　分割片
３２ｂ　回動ブラケット
３２ｃ　係合ピン
３３　　基板
３４　　支点軸
３５　　係合穴
３６　　圧縮バネ
３７　　ストッパピン
３８　　ストッパ穴
４１　　ディスク駆動ケース
４２ａ，４２ｂ　スプロケット
４３　　ディスク出力軸
４４　　チェーン
５１ａ　分割片
５２　　基板
５３　　ゴム
５４ａ，５４ｂ　ビス[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a configuration of a ridge forming disk of a ridge forming machine.
[0002]
[Prior art]
As a configuration of a ridge forming disk of a conventional ridge forming machine, a configuration according to Japanese Patent No. 3148678 by the same applicant is known. A ridge forming machine according to this publication is mounted on a tractor, is moved along a ridge forming portion, and supplies a soil to the ridge forming portion in a raised state, and a ridge installed behind the moving direction of the burying device. A ridge forming device, wherein the ridge forming device rotates the cylindrical rotator over a ridge forming portion in a raised state, and a rotary driving supply side attached to a rotary driving force supply side of the cylindrical rotator. The diameter becomes larger as it goes, and it has an inclined surface toward the center of the cylindrical rotating body, the surface is divided into radial divided pieces, and each divided piece is provided with an advancing angle with respect to the traveling direction, and the adjacent divided Each of the pieces has a clearance angle and is formed of a conical rotating body connected in a zigzag shape in a side view.
[0003]
[Problems to be solved by the invention]
In the configuration of the prior art, the advancing angle and the relief angle formed by each of the above-mentioned divided pieces are fixed at angles, and therefore, when the ridge formation work is successful or not depending on the degree of drying of the soil in the field, variation occurs. In particular, the ridge formation work in a field where the degree of drying of the soil has advanced has a problem that the tightening force on the ridge side is weak.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, a banking device that is moved along a ridge forming portion and supplies soil in a ridge-forming portion in a raised state, and a ridge forming device that is installed behind the moving direction of the banking device. The ridge forming device has a cylindrical rotating body that rotates and passes through the upper surface of the ridge forming portion in which the soil is in a raised state, and is attached to the rotational driving force supply side of the cylindrical rotating body and to the rotational driving force supply side. It becomes larger in diameter, has an inclined surface toward the center of the cylindrical rotating body, and has a plurality of divided pieces whose surface is radially divided, and this divided piece is provided on a fulcrum axis provided in parallel with the radial surface. It is supported, and the advance angle with respect to the traveling direction can be displaced, and the pivotally supported split piece is elastically held in the ridge side direction by an elastic body, and this split piece is attached to a base provided parallel to the inclined surface. It is possible to use By interposing a body provided with a forward angle, there is provided a ridge forming machine is characterized in that a displaceable advancing angle of the split piece by the elastic force of the elastic body.
[0005]
[Action]
With the above configuration, especially when performing ridge formation work in a field where the degree of drying of the soil has advanced, while embedding a large amount of embankment by displacing the divided pieces and increasing the initial setting advancing angle A strong ridge can be formed by applying the ridge to the side of the ridge, and the divided pieces can be elastically held to improve the application pressure on the ridge side and follow automatically, so that a strong ridge can be formed and the finish is beautiful. is there.
[0006]
【Example】
The configuration will be described based on the drawings embodying the present invention. FIG. 1 is a plan view of a ridge forming machine embodying the present invention, and FIG. 2 is a rear view of the ridge forming machine. FIG. 3 is a perspective view of a ridge forming disk of the ridge forming machine, and FIG. 4 is an outer peripheral plan view of a conical rotator provided in the ridge forming machine. FIG. 5 is a back side front view of the conical rotating body provided in the ridge forming machine. FIG. 6 is a perspective view of a ridge forming disk according to another embodiment, and FIG. 7 is an outer peripheral plan view of a conical rotating body according to another embodiment.
[0007]
1 and 2, reference numeral 11 denotes a frame, which has a mounting mast 12 projecting forward, and the mounting mast is mounted on a three-point link of a tractor, which is a traveling vehicle, not shown. Reference numeral 13 denotes a mission case, which is arranged at a substantially central portion of the frame 11 and has an input shaft 14 protruding forward. Reference numeral 15 denotes a universal joint (not shown) which is connected to the tractor PTO shaft and the input shaft 14 to transmit the driving force of the PTO shaft. A drive shaft 16 is provided inside the frame 11 which is orthogonal to the traveling direction, and the driving force transmitted to the input shaft 14 is reduced via bevel gears 13 a and 13 b provided inside the transmission case 13 to drive the drive shaft 16. The driving force is transmitted to the shaft 16 to drive the embankment device A and the ridge forming device B provided at one end of the frame 11, respectively.
[0008]
The embankment device A has a rotary 23 having a plurality of crushing claws 21 radially provided with respect to the axis of the claw shaft 22 and a rotary output shaft 24 for fixing one end of the rotary 23 to a rotary drive case for rotationally driving. In a rotary drive case 25, a sprocket 26a fixed to the drive shaft 16 and a sprocket 26b fixed to the inner end of the rotary output shaft 24 are wound around a chain 27 and further decelerated. The rotary 23 fixed to the shaft 24 is rotated in the forward direction of the traveling direction.
[0009]
The ridge forming device B is disposed behind the embankment device A, and includes a ridge forming disk 3 rotatable in a forward direction of a traveling direction, and a disk drive case 41 for driving the ridge forming disk 3 to rotate. . The disk drive case 41 has a sprocket 42a fixed to the end of the drive shaft 16 and a sprocket 42b fixed to the inner end of a disk output shaft 43 protruding horizontally from the disk drive case 41. Then, the disk 3 is fixed to the disk output shaft 43 and rotated in the forward direction.
[0010]
The ridge forming disk 3 includes a cylindrical rotating body 31 and a conical rotating body 32. The cylindrical rotator 31 has a cylindrical shape, and is attached to the outer end of the disk output shaft 43. The ridges are formed by rotating in the forward direction. The conical rotator 32 has a substantially frustoconical inclined surface whose diameter increases from the outer peripheral portion of the inner end of the cylindrical rotator 31 attached to the disk output shaft 43 toward the rotational driving force supply side, that is, the tractor side. Then, it rotates forward with the cylindrical rotating body 31 to form a ridge on the side surface of the ridge forming portion H which has been brought into the crushed soil embossed state by the embankment device A.
The peripheral speed of the ridge forming disk 3 composed of the cylindrical rotator 31 and the conical rotator 32 is set to rotate faster than the tractor working speed, that is, the traveling speed, and the ridge forming surface is tightened in a slip state.
[0011]
As shown in FIG. 3, the surface of the conical rotator 32 has a plurality of divided pieces 32a radially divided, a is a contact surface with a ridge forming side surface, and b is a clearance width. As shown in FIG. 4, when the outer peripheral surface of the large-diameter portion of the conical rotating body 32 is viewed in plan, the divided pieces 32 a have a zigzag shape, and the advancing angle α is provided in the traveling direction f, and the adjacent divided pieces 32 a Are connected with a clearance angle β.
[0012]
In FIG. 5, a split piece 32 a is formed on a fulcrum shaft 34 parallel to an inclined face extending from a substrate 33 provided substantially in parallel on the back side of the inclined face of the conical rotating body 32, and formed on the divided piece 32 a. The advancing angle α can be displaced and the clearance width b can be increased or decreased by rotatably supporting a rotating bracket 32b having an opening provided in front of the rotating direction W on the back side of the contact surface a. be able to.
[0013]
On the back side of the divided piece 32a in the rotation direction W, an engaging pin 32c is provided so as to protrude toward the substrate 33, and the substrate 33 is provided with a fitting hole 35 through which the engaging pin 32c passes and is engaged. A compression spring 36 as an elastic body is interposed between the divided piece 32a and the substrate 33 around the engagement pin 32c, and the end of the engagement pin 32c that has passed through the engagement hole 35 of the substrate 33 is connected to a stopper 37. Fix with.
By interposing the compression spring 36 between the divided piece 32a and the substrate 33, the divided piece 32a can be elastically held in the ridge side surface direction.
[0014]
Further, a plurality of stopper holes 38 are provided at the end of the engaging pin 32c. By inserting the stopper pin 37 into an arbitrary stopper hole 38, the initially set advance angle α can be adjusted.
[0015]
In this way, the embankment device A crushes the ridge formation location H to make the soil in a raised state, and displaces the initially set advance angle α of the divided piece 32a provided in the conical rotating body 32 to a desired angle. The embankment is rotated while holding an appropriate amount of embankment, and the embankment is firmly applied to the side surface of the ridge by the elastic force of the compression spring 36 interposed between the substrate 33 and the divided piece 32a, so that a strong ridge is formed. You.
[0016]
6 and 7 show another embodiment, in which the surface of the conical rotator 32 has a plurality of divided pieces 51a radially divided, and the divided pieces 51a are composed of substantially fan-shaped independent pieces. You. a is a contact surface with the ridge forming side surface, and b is a clearance width. When the outer peripheral surface of the large-diameter portion of the conical rotator 32 is viewed in a plan view, between the substrate 52 provided substantially parallel to the inclined surface of the conical rotator 32 and the divided piece 51a provided with the advance angle α. Interposes rubber 53 which is an elastic body. The rubber 53 is provided with screw holes 53a and 53b respectively. The rubber 53 is fixed to the screw 54a on the substrate 52, and the divided piece 51a is mounted on the rubber 53 with the screw 54b. 32.
[0017]
Advancing angle α and clearance angle β are constituted by mutually adjacent divided pieces 51a. By interposing a rubber body, which is an elastic body, between the divided piece 51a and the substrate 52, the advancing angle α of the divided piece 51a is always held in the ridge side surface direction, and can be displaced by the application of external pressure.
[0018]
In this way, the ridge forming portion H is crushed by the embankment device A to make the soil in a raised state, and the divided pieces 51a of the conical rotator 32 rotate while embracing more embankment, and rotate with respect to the ridge side surface. It can be firmly applied by the elastic force of the rubber 53.
[0019]
【effect】
With the above configuration, the embedding amount of the embankment can be increased, and the embankment can be firmly applied to the ridge formation portion by the elastic force of the elastic body. Intermittent pressure is continuously applied to the ridge side surface to exert a tapping action, and it is particularly effective in ridge formation work in a field where the degree of soil drying is high, and a strong and clean ridge can be formed.
[Brief description of the drawings]
FIG. 1 is a plan view of a ridge forming machine embodying the present invention. FIG. 2 is a rear view of the ridge forming machine. FIG. 3 is a perspective view of a ridge forming disk of the ridge forming machine. FIG. 5 is a front view of a back side of a conical rotating body provided in the ridge forming machine. FIG. 6 is a perspective view of a ridge forming disk in another embodiment. FIG. Peripheral plan view of the conical rotating body in the embodiment of the present invention
11 Frame 12 Mounting Mast 13 Transmission Case 14 Input Shaft 15 Universal Joint 16 Drive Shaft 21 Crushing Claw 22 Claw Shaft 23 Rotary 24 Rotary Output Shaft 25 Rotary Driving Cases 26a, 26b Sprocket 27 Chain 3 Rib Forming Disk 31 Cylindrical Rotating Body 32 Conical Rotating body 32a Split piece 32b Rotating bracket 32c Engagement pin 33 Substrate 34 Support shaft 35 Engagement hole 36 Compression spring 37 Stopper pin 38 Stopper hole 41 Disk drive cases 42a, 42b Sprocket 43 Disk output shaft 44 Chain 51a Split piece 52 Substrate 53 Rubber 54a, 54b Screw

Claims

畦形成箇所に沿って移動され、畦形成箇所に土を盛り上げ状態に供給する土盛装置と、土盛装置の移動方向の後方に設置される畦形成装置とを有し、畦形成装置は土を盛り上げ状態とされた畦形成箇所の上面を回転しながら通過させる円筒状回転体と、円筒状回転体の回転駆動力供給側に取り付けられ回転駆動力供給側にいく程径大となり、円筒状回転体の中央に向けた傾斜面を有するとともに表面は放射状に分割される分割片を複数設け、この分割片は放射面に対し平行状に設けた支点軸に軸支され、進行方向に対する前進角を変位可能としたことを特徴とした畦形成機。A ridge forming device that is moved along the ridge forming portion and supplies the soil to the ridge forming portion in a raised state, and a ridge forming device that is installed behind the moving direction of the banking device. Rotating body that rotates while passing over the upper surface of the ridge forming portion in a raised state, and is attached to the rotational driving force supply side of the cylindrical rotating body, and becomes larger in diameter toward the rotational driving force supply side, and has a cylindrical shape. The rotating body has an inclined surface facing the center and a plurality of divided pieces whose surface is radially divided are provided. The divided pieces are supported by a fulcrum shaft provided in parallel with the radial surface, and the advancing angle with respect to the traveling direction. Ridge forming machine characterized in that it can be displaced.

軸支される分割片を弾性体により畦側面方向へ弾性保持することを特徴とする請求項１記載の畦形成機。2. The ridge forming machine according to claim 1, wherein the pivotally supported divided piece is elastically held in a ridge side direction by an elastic body.

畦形成箇所に沿って移動され、畦形成箇所に土を盛り上げ状態に供給する土盛装置と、土盛装置の移動方向の後方に設置される畦形成装置とを有し、畦形成装置は土を盛り上げ状態とされた畦形成箇所の上面を回転しながら通過させる円筒状回転体と、円筒状回転体の回転駆動力供給側に取り付けられ回転駆動力供給側にいく程径大となり、円筒状回転体の中央に向けた傾斜面を有するとともに表面は放射状に分割される分割片を複数設け、この分割片は傾斜面に対し平行状に設けられた基板に取り付け可能とし、基板と分割片の取付部には弾性体を介在させ前進角を設け、この弾性体の弾性力により分割片の前進角変位可能としたことを特徴とした畦形成機。A ridge forming device that is moved along the ridge forming portion and supplies the soil to the ridge forming portion in a raised state, and a ridge forming device that is installed behind the moving direction of the banking device. Rotating body that rotates while passing over the upper surface of the ridge forming portion in a raised state, and is attached to the rotational driving force supply side of the cylindrical rotating body, and becomes larger in diameter toward the rotational driving force supply side, and has a cylindrical shape. It has an inclined surface facing the center of the rotating body and the surface is provided with a plurality of divided pieces radially divided, and the divided pieces can be attached to a substrate provided in parallel with the inclined surface, and A ridge forming machine characterized in that an advancing angle is provided in an attaching portion with an elastic body interposed therebetween, and the advancing angle of the divided pieces can be displaced by the elastic force of the elastic body.