JPH09215402A - Levee forming machine equipped with preprocessing mechanism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To securely and efficiently restore an old levee irrelevantly to whether the field is well-drained paddy field or ill-drained paddy field. SOLUTION: The fitting part of a tractor is provided independently with a 1st fixed holding member 12 equipped with a 1st driving shaft 19 and a 2nd fixed holding member 13 equipped with a 2nd driving shaft 21. The 1st driving shaft 19 is provided with a 1st movable holding member 20 which has a 1st working shaft 51 rotatably on the axis of the driving shaft 19. The 2nd driving shaft 21 is provided with a 2nd movable holding member 22 which has a 2nd working shaft 62 rotatably on the axis of the driving shaft 21. Those working shafts 51 and 52 are coupled with the driving shafts 19 and 21 through a chain device. A rotary scraping-out edge 80 which scrapes out an old levee 3 is fixed to the 1st working shaft 51. A ground raising rotor 83 which supplies earth onto the old levee is fixed to the 2nd working shaft 6. The earth spread over the old levee by the rotation of the ground raising rotor 83 is prepared into a levee by a levee preparing machine 109.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、旧畦を修復して新
たな畦を形成するに際し、旧畦を所要に削り取ってそこ
に土盛りをし、この盛土を整畦機により締め固めて新た
な畦を形成する、前処理機構を具えた畦形成機に関する
ものである。BACKGROUND OF THE INVENTION The present invention relates to a method of repairing an old ridge and forming a new ridge by shaving the old ridge as required and filling it with soil. The present invention relates to a ridge forming machine having a pretreatment mechanism for forming ridges.

【０００２】[0002]

【従来の技術】旧畦を修復して新たな畦を形成するに際
し、風化等によって崩れた旧畦の上部分等を削り取って
そこに土盛りをし、この盛土を整畦機により締め固めて
新たな畦を形成する、前処理機構を具えた畦形成機とし
ては、特開昭６０−９８９０３号公報が開示するものが
提案されている。2. Description of the Related Art When restoring an old ridge to form a new ridge, the upper part of the old ridge that has collapsed due to weathering, etc., is scraped off and filled with soil, and the embankment is compacted with a leveling machine. Japanese Unexamined Patent Publication No. 60-98903 discloses a ridge forming machine having a pretreatment mechanism for forming a ridge.

【０００３】この畦形成機は、図１６に示すように、ト
ラクタに連結した機枠ａに、旧畦ｂ上に土盛りする土盛
りロータｃを設け、該土盛りロータの進行方向の前方位
置に、旧畦の上部分を削り取る回転削出刃ｄを配設して
なる。そして前記土盛りロータｃは、旧畦の畦際ｅ及び
旧畦の内側部分ｆに、田面側から旧畦側に向けて切り入
るようにその回転方向ｇが設定されていた。このように
回転方向を設定していたのは、削出された旧畦上への土
の掻き上げを短距離で直接的に行いうるようにするため
であったと思われる。又前記回転削出刃は、畦の上面と
該削出刃との相対位置を調節して削出深さを適宜選択で
きるようにするために、調節装置ｈにより上下位置を調
節可能ｊとされていた。In this ridge forming machine, as shown in FIG. 16, a machine frame a connected to a tractor is provided with an earth embankment rotor c on the old embankment b, and the earth emplacement rotor c is installed in front of the earth emplacement rotor in the traveling direction. A rotary cutting blade d for scraping off the upper part of the ridge is provided. The rotation direction g of the embankment rotor c is set so as to cut from the rice field side toward the old ridge side into the ridge e of the old ridge and the inner part f of the old ridge. It is considered that the reason for setting the rotation direction in this way was to enable the soil to be directly scraped over the cut old ridge in a short distance. In addition, the rotary cutting blade is configured so that the vertical position can be adjusted by an adjusting device h in order to adjust the relative position between the upper surface of the ridge and the cutting blade so that the cutting depth can be appropriately selected. .

【０００４】[0004]

【発明が解決しようとする課題】しかしながら前記構成
の畦形成機によるときには、次のような問題があった。 土盛りロータの回転方向を、それが田面側から旧畦
側に向けて切り入るように設定していたため、該土盛り
ロータは、硬く締まった旧畦の裾部から上に向けて土を
掻き上げることとなる。その為に、土盛りロータによる
土の掻き上げに大きな負荷がかかることとなり、駆動装
置を大馬力のものに構成する必要があった。However, the ridge forming machine having the above-described structure has the following problems. Since the rotation direction of the embankment rotor was set so that it cuts from the rice field side toward the old ridge side, the earth emplacement rotor should scrape the soil upward from the hem of the old ridge that is tightly tightened. Becomes For this reason, a large load is applied to the scraping of the soil by the soil filling rotor, and it is necessary to configure the driving device to have a large horsepower.

【０００５】 又、土盛りロータの回転方向がこのよ
うに設定されていたことから、乾いて硬い状態にあるこ
とが多い畦側の土が旧畦上に供給されることとなる。し
かも、旧畦の土を裾部から上に向けて掻き上げるため
に、土が大きい固まり状態で掻き上げられ易い。このよ
うなことから、整畦時に盛土を締め固めにくく、木目の
荒い強度的に不安定な畦が形成され易い問題があった。Since the rotation direction of the earth-filling rotor is set in this way, the soil on the ridge side, which is often in a dry and hard state, is supplied onto the old ridge. Moreover, since the soil of the old ridge is scraped upward from the hem, the soil is easily scraped in a large solid state. For this reason, there is a problem that it is difficult to compact the embankment at the time of arranging ridges, and it is easy to form ridges with rough grain and unstable strength.

【０００６】 前記畦形成機は、回転削出刃を上下動
可能に構成していたため、風化等による崩れが激しくて
旧畦の上面高さが低くなっている場合には、回転削出刃
を下げて旧畦の上部分を削り取ることができる長所を有
している。しかし、このように回転削出刃を下げて削出
を行った場合には、所要の畦形成のために、その部分へ
の土盛り量を、下げた分だけ多くする必要がある。とこ
ろが従来の畦形成機によるときは、回転削出刃を下げて
も、土の掻き上げ量を多くするために土盛りロータが自
動的に下がるといった仕組みにはなっていない。そのた
め、盛土量に不足を来し易く、均一に締め固められた強
度のある畦を形成し難い問題があった。In the ridge forming machine, the rotary cutting blade is configured to be movable up and down. Therefore, if the upper surface of the old ridge is low due to severe collapse due to weathering or the like, lower the rotary cutting blade. It has the advantage that the upper part of the old ridge can be scraped off. However, when the rotary shaving blade is lowered in this way to perform shaving, it is necessary to increase the amount of earth fill to that portion in order to form the required ridges. However, in the conventional ridge forming machine, even if the rotary cutting blade is lowered, the earth-filling rotor is not automatically lowered to increase the amount of soil scraped. For this reason, there is a problem that the embankment amount is likely to be insufficient, and it is difficult to form a uniformly compacted ridge.

【０００７】 さらに、土盛りロータの回転方向を前
記のように設定していたことから、トラクタのタイヤが
旧畦裾部に近接した部分を走行する場合、該土盛りロー
タは、タイヤに踏まれた田面部分の土を掻き上げること
になる。特に湿田の整畦の場合は、図１６に一点鎖線で
示すように、タイヤの走行した部分が２０ｃｍ〜３０ｃ
ｍも深く窪んだ状態ｍとなることが往々にしてある。こ
のようになると、土盛りロータｃを如何に下げたとして
も、その刃先が窪み部の底面ｎに接するのさえ困難とな
り、土盛りロータによる土の掻き上げが事実上不可能と
なって整畦できない事態を招いた。 このように従来の畦形成機によるときは、乾田の整畦に
は対処できても湿田（乾田も、耕した後に降雨がある等
によって容易に湿田状態になってしまう）の整畦には全
く対処できなかったのである。Further, since the rotation direction of the earth-filling rotor is set as described above, when the tire of the tractor travels in a portion close to the old ridge hem, the earth-filling rotor is mounted on the rice paddle stepped on by the tire. It will scrape up some soil. In particular, in the case of arranging wetlands, as shown by the alternate long and short dash line in FIG.
Often, m is also deeply depressed. In this case, no matter how much the earth-filling rotor c is lowered, it becomes difficult for the blade edge to contact the bottom surface n of the recessed portion, and it is practically impossible to scrape the soil by the earth-filling rotor and the soil cannot be adjusted. Invited. As described above, when the conventional ridge forming machine is used, it is possible to deal with the adjustment of dry fields, but it is not necessary for the adjustment of wet fields (the dry fields easily become wet due to rainfall after plowing). I couldn't handle it.

【０００８】本発明は、以上のような従来の畦形成機の
問題点を一挙に解決しうる、前処理機構を具えた畦形成
機の提供を目的とするものである。An object of the present invention is to provide a ridge forming machine provided with a pre-processing mechanism, which can solve the above-mentioned problems of the conventional ridge forming machine at once.

【０００９】[0009]

【課題を解決するための手段】上記課題を解決するた
め、本発明は以下の手段を採用する。即ち、本発明に係
る前処理機構を具えた畦形成機（以下畦形成機という）
は、走行機に付設されてその進行方向に、旧畦を修復し
つつ新たな畦を形成する、前処理機構を具えた畦形成機
であって、前記走行機の取付け部に固定される、独立し
て配置された第１の固定保持部材と、第２の固定保持部
材とを具え、該第１の固定保持部材に、該走行機の進行
方向前方或いは後方に向けて突出する第１の駆動軸を設
け且つ該第１の駆動軸に、その軸線回りに回動可能とな
るように第１の可動保持部材を設け、又、前記第２の固
定保持部材に、前記走行機の進行方向前方或いは後方に
向けて突出する第２の駆動軸を設け且つ該第２の駆動軸
に、その軸線回りに回動可能となるように第２の可動保
持部材を設けてなる。In order to solve the above problems, the present invention employs the following means. That is, a ridge forming machine provided with a pretreatment mechanism according to the present invention (hereinafter referred to as a ridge forming machine).
Is a ridge forming machine equipped with a pretreatment mechanism, which is attached to the traveling machine and forms a new ridge while restoring the old ridges, and is fixed to the mounting portion of the traveling machine. A first fixed holding member and a second fixed holding member that are independently arranged are provided, and a first fixed holding member that projects toward the front or the rear in the traveling direction of the traveling machine is provided to the first fixed holding member. A drive shaft is provided, and a first movable holding member is provided on the first drive shaft so as to be rotatable about its axis, and a traveling direction of the traveling machine is provided on the second fixed holding member. A second drive shaft protruding forward or rearward is provided, and a second movable holding member is provided on the second drive shaft so as to be rotatable about its axis.

【００１０】又、該第１の可動保持部材と第２の可動保
持部材を独立的に回動可能とすると共に、これらを夫々
所要の回動状態で固定可能としてなり、又前記第１の可
動保持部材には、前記第１の駆動軸と所要距離を隔てて
平行する第１の作業軸を配設すると共に、該第１の作業
軸を、伝導要素を介して前記第１の駆動軸に連結する一
方、前記第２の可動保持部材にも、前記第２の駆動軸と
平行する第２の作業軸を配設すると共に、該第２の作業
軸を、伝導要素を介して前記第２の駆動軸に連結してな
る。Further, the first movable holding member and the second movable holding member can be independently rotated, and these can be fixed in respective required rotating states, and the first movable holding member can be fixed. The holding member is provided with a first working shaft that is parallel to the first driving shaft with a required distance therebetween, and the first working shaft is connected to the first driving shaft via a transmission element. On the other hand, a second working shaft that is parallel to the second drive shaft is also disposed on the second movable holding member while being connected, and the second working shaft is connected to the second working shaft through a transmission element. It is connected to the drive shaft of.

【００１１】又前記第１の作業軸には、旧畦を所要に削
り取る回転削出刃を固設する一方、前記第２の作業軸に
は、該回転削出刃によって削り取られた旧畦上に土を供
給するために、少なくとも田面部分の土を掻き上げる土
盛りロータを固設してなり、前記第１の駆動軸の回転に
伴う、前記伝導要素を介しての第１の作業軸の回転によ
り、前記回転削出刃が、旧畦の外側の部分から内側（田
面側）に向けて旧畦を削り取るように回転し、且つ前記
第２の駆動軸の回転に伴う、前記伝導要素を介しての第
２の作業軸の回転により、前記土盛りロータが、旧畦か
ら離れる方向に田面に切り入るように回転する如く構成
してなる。又、旧畦上の盛土を整畦機により締め固めて
畦を形成することを特徴とするものである。The first working shaft is fixedly provided with a rotary cutting blade for cutting the old ridge as required, while the second working shaft is provided with soil on the old ridge cut by the rotary cutting blade. In order to supply the soil, at least the earth-filling rotor for scraping up the soil on the rice field portion is fixed, and the rotation of the first working shaft through the transmission element is accompanied by the rotation of the first drive shaft. The rotary shaving blade rotates so as to scrape off the old ridge from the outer side portion of the old ridge toward the inner side (field side), and the second through the conduction element accompanying the rotation of the second drive shaft. The rotation of the working shaft causes the earth-filling rotor to rotate so as to cut into the rice field in a direction away from the old ridge. Further, the present invention is characterized in that the embankment on the old ridge is compacted by a leveling machine to form a ridge.

【００１２】前記畦形成機は、第１の固定保持部材と第
２の固定保持部材が、畦と略直交する方向の左右に所要
間隔をおいて配置するのがよい。In the ridge forming machine, it is preferable that the first fixed holding member and the second fixed holding member are arranged at required intervals on the left and right in a direction substantially orthogonal to the ridge.

【００１３】又前記各畦形成機において、第１の作業軸
にスプロケットを固設すると共に第１の駆動軸にスプロ
ケットを固設し、該両スプロケットにチェーンを巻装
し、又第２の作業軸にスプロケットを固設すると共に第
２の駆動軸にスプロケットを固設し、該両スプロケット
にチェーンを巻装するのがよい。In each of the ridge forming machines, a sprocket is fixedly mounted on a first working shaft, a sprocket is fixedly mounted on a first drive shaft, a chain is wound around the sprocket, and a second working is carried out. It is preferable that the sprocket is fixed to the shaft, the sprocket is fixed to the second drive shaft, and the chain is wound around the both sprockets.

【００１４】前記各畦形成機において、土盛りロータの
上方及び旧畦上方に亘って案内カバーを配置し、土盛り
ロータの回転によって掻き上げられた土がこの案内カバ
ーに案内されて旧畦上に供給されるように構成するのが
よい。In each of the ridge forming machines, a guide cover is arranged above the earth-filling rotor and above the old ridge, and the soil scraped up by the rotation of the earth-filling rotor is guided by the guide cover and supplied onto the old ridge. It is better to configure it.

【００１５】前記案内カバー内の旧畦上方部分に、走行
機の進行方向後方に向けて凹に湾曲する土誘導板を、回
転削出刃と衝合しないように設け、土盛りロータによっ
て掻き上げられた土がこの土誘導板に誘導されて（土の
全部とは限らない）、走行機の進行方向後方に向けて排
出され、旧畦上に落下するように構成するのがよい。In the upper part of the old ridge in the guide cover, a soil guide plate curved concavely toward the rear of the traveling direction of the traveling machine is provided so as not to collide with the rotary cutting blade, and is scraped up by the earth-filling rotor. It is preferable that the soil is guided by the soil guide plate (not all of the soil), discharged toward the rear in the traveling direction of the traveling machine, and dropped onto the old ridge.

【００１６】又前記案内カバーは、第２の可動保持部材
の回動状態が変わった場合や土質が変わった場合にも、
土を旧畦上に正しく供給できるようにするため、案内カ
バーの取り付け状態を変更可能に構成するのがよい。Further, the guide cover is provided even when the rotating state of the second movable holding member is changed or when the soil quality is changed.
In order to enable the soil to be properly supplied onto the old ridges, it is desirable to be able to change the mounting state of the guide cover.

【００１７】又本発明に係る畦形成機において、固定保
持部材の上下位置を調節可能とするのがよい。Further, in the ridge forming machine according to the present invention, it is preferable that the vertical position of the fixed holding member can be adjusted.

【００１８】[0018]

【発明の実施の形態】以下、本発明の実施の形態を図面
に基づいて説明する。図１において本発明に係る前処理
機構を具えた畦形成機１は、トラクタとしての走行機２
に付設されてその進行方向に、旧畦３を修復しつつ新た
な畦５を形成する、前処理機構６を具えている。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, a ridge forming machine 1 provided with a pretreatment mechanism according to the present invention includes a traveling machine 2 as a tractor.
And a pre-processing mechanism 6 for repairing the old ridge 3 and forming a new ridge 5 in the direction of travel.

【００１９】該前処理機構６は、図１〜２、図４に示す
ように、前記走行機２に設けられた、畦と略直交する方
向に延びる、伝導軸７（図２）を内蔵する筒状体９を具
え、この筒状体９の左右端部に右側の取付け部１０と左
側の取付け部１１を設け、該右側の取付け部１０に第１
の固定保持部材１２を、又左側の取付け部１１に第２の
固定保持部材１３を夫々設けてなる。なお本実施の形態
においては、前記筒状体９は、間隔を置いて配置された
左右の支持腕１５，１６と、前記左側の取付け部１１に
枢着された中央支持腕１７に支持されて走行機２に付設
されている。As shown in FIGS. 1 and 2, the pretreatment mechanism 6 has a built-in conduction shaft 7 (FIG. 2) provided in the traveling machine 2 and extending in a direction substantially orthogonal to the ridges. A tubular body 9 is provided, and a right side mounting portion 10 and a left side mounting portion 11 are provided at the left and right ends of the tubular body 9, and the right side mounting portion 10 has a first mounting portion 10.
And a second fixing and holding member 13 on the left mounting portion 11. In the present embodiment, the tubular body 9 is supported by the left and right support arms 15 and 16 arranged at intervals and the central support arm 17 pivotally attached to the left mounting portion 11. It is attached to the traveling machine 2.

【００２０】前記第１の固定保持部材１２には、走行機
２の進行方向前方に向けて突出する第１の駆動軸１９を
設けると共に、該第１の駆動軸１９に、旧畦の削り取り
に関わる第１の可動保持部材２０を該第１の駆動軸１９
の軸線回りに回動可能（図４に矢印で示す）となるよう
に設け、該第１の可動保持部材２０を、所要の回動状態
で前記第１の固定保持部材１２に固定可能としてなる。
又前記第２の固定保持部材１３には、走行機２の進行方
向前方に向けて突出する第２の駆動軸２１を設けると共
に、該第２の駆動軸２１に、削出された旧畦上への土の
供給に関わる第２の可動保持部材２２を該第２の駆動軸
２１の軸線回りに回動可能（図４に矢印で示す）となる
ように設け、該第２の可動保持部材２２を、所要の回動
状態で前記第２の固定保持部材１３に固定可能としてな
る。The first fixed holding member 12 is provided with a first drive shaft 19 projecting forward in the traveling direction of the traveling machine 2, and the first drive shaft 19 is used for scraping old ridges. The first movable holding member 20 concerned is attached to the first drive shaft 19
The first movable holding member 20 can be fixed to the first fixed holding member 12 in a required rotating state by being provided so as to be rotatable around the axis line of (shown by an arrow in FIG. 4). .
In addition, the second fixed holding member 13 is provided with a second drive shaft 21 that projects forward in the traveling direction of the traveling machine 2, and the second drive shaft 21 is used to move the carved old ridge to the upper side. The second movable holding member 22 related to the soil supply is provided so as to be rotatable about the axis of the second drive shaft 21 (indicated by an arrow in FIG. 4), and the second movable holding member 22 is provided. Can be fixed to the second fixed holding member 13 in a required rotating state.

【００２１】前記第１の固定保持部材１２は、例えば立
方体状のボックスとして形成され、前記第１の駆動軸１
９が、該固定保持部材１２の前後面部に設けた軸受２
３，２５に支持されて、走行機２の進行方向前方に向け
突出せしめられている。そして図２、図５に示すよう
に、該駆動軸１９には、固定保持部材１２内において傘
歯車２６が固設されている。又該固定保持部材１２の左
右には、前記駆動軸１９と直交するように、前記伝導軸
７と整畦駆動軸２７をその軸線を合致させて配置し、伝
導軸７を軸受２９に支持させると共に、整畦駆動軸２７
を、第１の固定保持部材１２に固設した円板状保持板３
０（図４）とそれと間隔をおいて対向し且つ連結軸３１
で連結された円板状保持板３２（図４）に夫々保持され
た軸受３３，３５に支持させてなる。又、伝導軸７と整
畦駆動軸２７に固設した傘歯車３６，３７を、前記第１
の駆動軸の傘歯車２６に夫々噛合させ、伝導軸７の回転
に伴いこの第１の駆動軸１９と整畦駆動軸２７が回転す
るように構成されている。The first fixed holding member 12 is formed, for example, as a cubic box, and the first drive shaft 1
Reference numeral 9 denotes a bearing 2 provided on the front and rear surfaces of the fixed holding member 12.
It is supported by 3, 25 and is projected forward in the traveling direction of the traveling machine 2. As shown in FIGS. 2 and 5, a bevel gear 26 is fixed to the drive shaft 19 in the fixed holding member 12. Further, on the left and right sides of the fixed holding member 12, the transmission shaft 7 and the uneven drive shaft 27 are arranged so as to be orthogonal to the drive shaft 19 with their axes aligned, and the transmission shaft 7 is supported by the bearing 29. Together with the ridge drive shaft 27
A disc-shaped holding plate 3 fixed to the first fixed holding member 12.
0 (FIG. 4) and a connecting shaft 31 facing each other at a distance.
It is supported by bearings 33 and 35 held by disc-shaped holding plates 32 (FIG. 4) connected with each other. Further, the bevel gears 36 and 37 fixedly mounted on the transmission shaft 7 and the ridge drive shaft 27 are attached to the first
The bevel gears 26 of the drive shaft are engaged with each other, and the first drive shaft 19 and the ridge drive shaft 27 are configured to rotate as the transmission shaft 7 rotates.

【００２２】又前記第２の固定保持部材１３は、例えば
立方体状のボックスとして形成され、前記第２の駆動軸
２１が、該固定保持部材１３の前面側に設けた軸受３
９，４０に支持されて、走行機２の進行方向前方に向け
突出せしめられ且つ走行機２の動力軸４１に連結され
る。そして図２、図５に示すように、該駆動軸２１に
は、固定保持部材１３内において傘歯車４２が固設され
ている。又、該固定保持部材１３の左右に設けた軸受４
３，４５に、前記伝導軸７が支持されている。又、伝導
軸７に固設した傘歯車４６を、第２の駆動軸の傘歯車４
２に噛合させ、走行機２の動力軸４１によって回転せし
められた第２の駆動軸２１の回転によって、伝導軸７が
回転するように構成されている。The second fixed holding member 13 is formed, for example, as a cubic box, and the second drive shaft 21 is provided with a bearing 3 provided on the front side of the fixed holding member 13.
It is supported by 9, 40, is projected forward in the traveling direction of the traveling machine 2, and is connected to the power shaft 41 of the traveling machine 2. As shown in FIGS. 2 and 5, a bevel gear 42 is fixedly mounted on the drive shaft 21 in the fixed holding member 13. Further, bearings 4 provided on the left and right of the fixed holding member 13
The transmission shaft 7 is supported by 3, 45. Further, the bevel gear 46 fixed to the transmission shaft 7 is replaced with the bevel gear 4 of the second drive shaft.
The transmission shaft 7 is configured to rotate by the rotation of the second drive shaft 21 that is meshed with the shaft 2 and rotated by the power shaft 41 of the traveling machine 2.

【００２３】前記第１の可動保持部材２０は、前後側か
ら見て、両端側の縁部４７，４９が半円形をなす横長の
偏平なボックス状をなし、その基端側には、図６に示す
ように、前記円弧縁部４７に沿って同心に且つ等角度ピ
ッチでボルト孔５０の６個が、ボックスの厚さ方向に貫
設されている。又該可動保持部材２０の先端側の部分に
は、図２、図４〜５に示すように、前記第１の駆動軸１
９と平行する第１の作業軸５１が、該可動保持部材２０
の前後側において軸受５２，５３に支持されて配置され
ている。そして該可動保持部材２０内において、前記駆
動軸１９と第１の作業軸５１に、同径のスプロケット５
５，５６が固設されており、この両スプロケット５５，
５６にチエーン５７が巻装されている。When viewed from the front and rear sides, the first movable holding member 20 has a horizontally long flat box shape in which edges 47 and 49 on both end sides are semicircular, and the base end side thereof has the shape shown in FIG. As shown in FIG. 6, six bolt holes 50 are provided concentrically along the arc edge 47 and at an equal angular pitch so as to penetrate in the thickness direction of the box. Further, as shown in FIGS. 2 and 4 to 5, a portion of the movable holding member 20 on the distal end side has the first drive shaft 1
A first working shaft 51 parallel to the movable holding member 20
The bearings 52 and 53 are arranged on the front and rear sides of the bearing. In the movable holding member 20, the sprocket 5 having the same diameter is attached to the drive shaft 19 and the first working shaft 51.
5, 56 are fixedly installed, and both sprockets 55,
A chain 57 is wound around 56.

【００２４】前記第２の可動保持部材２２も、前記第１
の可動保持部材２０と略同様の構成を有し、前後側から
見て、両端側の縁部５９，６０が半円形をなす横長の偏
平なボックス状をなし、その基端側には、図７に示すよ
うに、前記円弧縁部５９に沿って同心に且つ等角度ピッ
チでボルト孔６１の６個が、ボックスの厚さ方向に貫設
されている。又該可動保持部材２２の先端側の部分に
は、図２、図４〜５に示すように、前記第２の駆動軸２
１と平行する第２の作業軸６２が、該可動保持部材２２
の前後側において軸受６３，６５に支持されて配置され
ている。そして該可動保持部材２２内において、前記駆
動軸２１と第２の作業軸６２に、同径のスプロケット６
６，６７が固設されており、この両スプロケット６６，
６７にチエーン６９が巻装されている。The second movable holding member 22 is also the first movable holding member 22.
The movable holding member 20 has substantially the same structure, and when viewed from the front and rear sides, the edge portions 59 and 60 on both end sides form a horizontally long flat box shape having a semicircular shape. As shown in FIG. 7, six bolt holes 61 are formed concentrically along the arc edge 59 at an equal angular pitch so as to penetrate in the thickness direction of the box. Further, as shown in FIGS. 2 and 4 to 5, a portion of the movable holding member 22 on the tip side is provided with the second drive shaft 2
The second working shaft 62 parallel to the first working shaft 62
The bearings 63 and 65 are arranged on the front and rear sides of the bearing. Then, in the movable holding member 22, the sprocket 6 having the same diameter is attached to the drive shaft 21 and the second working shaft 62.
6, 67 are fixed, and both sprockets 66,
A chain 69 is wound around 67.

【００２５】前記構成を有する第１の可動保持部材２２
は、図４に示すように、前記第１の固定保持部材１２に
固設された円板状固定鍔（前記軸受２３を保持する）７
０に取り付けられる。この円板状固定鍔７０には、図６
に示すように、前記ボルト孔５０（図６）を挿通する固
定ボルト７１が螺合しうるネジ孔７２の多数（例えば２
４個）が同心且つ等角度ピッチで設けられている。The first movable holding member 22 having the above structure
As shown in FIG. 4, a disc-shaped fixed flange (holding the bearing 23) 7 fixed to the first fixed holding member 12 is provided.
0 is attached. This disc-shaped fixed brim 70 is shown in FIG.
As shown in FIG. 6, a large number of screw holes 72 (for example, 2
4) are provided concentrically and at an equal angular pitch.

【００２６】又前記構成を有する第２の可動保持部材２
２も、図４に示すように、前記第２の固定保持部材１３
に固設された円板状固定鍔（前記軸受４０を保持する）
７３に取り付けられる。この円板状固定鍔７３には、図
７に示すように、前記ボルト孔６１を挿通する固定ボル
ト７５が螺合しうるネジ孔７６の多数（例えば２４個）
が同心且つ等角度ピッチで設けられている。The second movable holding member 2 having the above construction
2 also includes the second fixed holding member 13 as shown in FIG.
Disk-shaped fixed collar fixed to the (holding the bearing 40)
It is attached to 73. As shown in FIG. 7, a large number of screw holes 76 (for example, 24) into which the fixing bolts 75 that are inserted through the bolt holes 61 can be screwed are provided in the disc-shaped fixing collar 73.
Are provided concentrically and at an equal angular pitch.

【００２７】然して、第１の可動保持部材２０の回動状
態を所要に設定して、図４、図８に示すように、前記ボ
ルト孔５０（図６）を挿通する固定ボルト７１を前記円
板状固定鍔７０のネジ孔７２に螺締すると、該固定ボル
ト７１の６本によって、第１の可動保持部材２０は所要
の回動状態で且つ畦側に向けて傾く如く、前記第１の固
定保持部材１２に固定されることとなる。又同様に、第
２の可動保持部材２２の回動状態を所要に設定して、図
４、図９に示すように、前記ボルト孔６１（図７）を挿
通する固定ボルト７５を前記円板状固定鍔７３のネジ孔
７６に螺締すると、該固定ボルト７５の６本によって、
第１の可動保持部材２２は所要の回動状態で且つ畦側に
向けて傾く如く、前記第２の固定保持部材１３に固定さ
れることとなる。However, the rotation state of the first movable holding member 20 is set as required, and as shown in FIGS. 4 and 8, the fixing bolt 71 which is inserted through the bolt hole 50 (FIG. 6) is moved to the circular shape. When the screw holes 72 of the plate-like fixed brim 70 are screwed, the first movable holding member 20 is rotated by the six fixing bolts 71 so that the first movable holding member 20 is tilted toward the ridge side in a required rotating state. It will be fixed to the fixed holding member 12. Similarly, the rotational state of the second movable holding member 22 is set as required, and as shown in FIGS. 4 and 9, the fixing bolt 75 that is inserted into the bolt hole 61 (FIG. 7) is fixed to the disc. When it is screwed into the screw hole 76 of the fixed fixing collar 73, the six fixing bolts 75
The first movable holding member 22 is fixed to the second fixed holding member 13 so that the first movable holding member 22 is in a required rotating state and is inclined toward the ridge side.

【００２８】又、前記第１の作業軸５１及び第２の作業
軸６２の回転方向Ｆ１，Ｆ２は、図１０に示すように、
共に同一方向（図１０においては反時計回り）とされて
いる。そして、前記第１の作業軸５１の突出部分７７に
は、図１〜２、図１０に示すように、旧畦３を削り取る
例えばなた爪状の削出刃７９を周方向に複数個具える回
転削出刃８０を固設してなる。この回転削出刃８０は、
該第１の作業軸５１の回転に伴い、図１０に示すよう
に、旧畦３をその外側から内側（田面側）に向けて円弧
状に削り取るように回転Ｆ１する。又前記第２の作業軸
６２の突出部分８１には、図１〜２、図１０に示すよう
に旧畦上に土を供給するため、田面部分の土を掻き上げ
る複数個の掻き上げ刃８２を具える土盛りロータ８３を
固設してなる。この土盛りロータ８３は、前記第２の作
業軸６２の回転に伴い、図１０に示すように、旧畦３か
ら離れる方向に田面８５に切り入るように回転Ｆ２す
る。The rotation directions F1 and F2 of the first work shaft 51 and the second work shaft 62 are as shown in FIG.
Both are in the same direction (counterclockwise in FIG. 10). As shown in FIGS. 1-2 and 10, the protruding portion 77 of the first working shaft 51 is provided with a plurality of, for example, scalloped cutting blades 79 for scraping the old ridges 3 in the circumferential direction. The rotary cutting blade 80 is fixed. This rotary cutting blade 80
With the rotation of the first work shaft 51, as shown in FIG. 10, the old ridge 3 is rotated F1 so as to be scraped in an arc shape from the outer side toward the inner side (field side). Further, as shown in FIGS. 1 and 2, the projecting portion 81 of the second working shaft 62 is provided with a plurality of scraping blades 82 for scraping the soil on the rice paddy in order to supply the soil on the old ridge. The earth-filled rotor 83 is fixedly provided. As shown in FIG. 10, the earth embankment rotor 83 rotates F2 so as to cut into the rice field 85 in the direction away from the old ridge 3 as the second work shaft 62 rotates.

【００２９】又、該土盛りロータ８３の上方及び旧畦３
の上方に亘って案内カバー８６を配置しており、前記回
転削出刃８０は、該案内カバー８６に近接させてその前
側に配置されている。該案内カバー８６は、下方開放の
箱形をなし、その後面部８７の基端側には取付け面部８
９が形成され、先端には土受け用の垂下部９０が設けら
れている。そして、該案内カバー８６内の旧畦上方部分
には、図１１に示すように、トラクタ２の進行方向後方
に向けて凹に湾曲する土誘導板９１を設けてなり、前記
後面部８７には、土誘導板９１に誘導された土を排出す
るための開口９２を設けている。然して、土盛りロータ
８３の回転によって掻き上げられた土は、該案内カバー
８６に案内されて移動し、その多くのものが土誘導板９
１に誘導されて、走行機の進行方向後方に向けて排出さ
れ、旧畦の削出凹部９３（図１、図１０）に供給される
ようになされている。又本実施の形態においては、回転
削出刃８０による旧畦３の削り取りと土盛りロータ８３
による田面の土の掻き上げをより効果的に行いうるよう
にするため、第１、第２の固定保持部材１２、１３の上
下位置を調節可能とされ、所要の高さでトラクタに保持
されるようになされている。Also, the upper part of the embankment rotor 83 and the old ridge 3
The guide cover 86 is arranged over the upper part of the above, and the rotary cutting blade 80 is arranged close to the guide cover 86 on the front side thereof. The guide cover 86 is in the form of a box that opens downward, and the mounting surface 8 is formed on the rear end of the rear surface 87.
9 is formed, and a hanging portion 90 for receiving soil is provided at the tip. Further, as shown in FIG. 11, an earth guiding plate 91 which is concavely curved rearward in the traveling direction of the tractor 2 is provided in the upper part of the old ridge in the guide cover 86, and the rear surface portion 87 is provided with the earth guiding plate 91. An opening 92 for discharging the soil guided by the soil guide plate 91 is provided. However, the soil scraped up by the rotation of the earth-filling rotor 83 is guided and moved by the guide cover 86, and most of it is soil guide plate 9.
1 is discharged toward the rear in the traveling direction of the traveling machine, and is supplied to the cut recess 93 (FIGS. 1 and 10) of the old ridge. Further, in the present embodiment, the scraping of the old ridge 3 by the rotary cutting blade 80 and the earth embossing rotor 83 are performed.
The upper and lower positions of the first and second fixed holding members 12 and 13 are adjustable so that the soil on the paddy field can be more effectively scooped by the tractor. It is done like this.

【００３０】なお前記案内カバー８６は、本実施の形態
においては、その基端側の前記取付面部８９が、該２の
可動保持部材２２の先端側の前面部に固定された図４に
示す円板状固定板９５にボルト固定される。その固定構
造は、前記取付面部８９に、第２の作業軸６２の軸線回
りに同心に６個のボルト孔を等角度ピッチで設け、且つ
前記円板状固定板９５に、例えば１５度の角度ピッチで
ボルト孔９６を２４個設けてなり、円板状固定板９５側
の選択されたボルト孔９６を案内カバー８６側のボルト
孔と位置合わせして、該案内カバー８６の取り付け向き
を所望のものに調節可能としてなる。案内カバー部材８
６のこの調節は、該２の可動保持部材２２の回動状態が
変わった場合にも土が旧畦上に正しく供給されるように
するために、或いは、乾田、湿田の土質に応じて、土を
旧畦上に正しく供給できるようにするために行われるも
のである。その調節の一の態様は、図１０に実線と一点
鎖線で示す通りである。In the present embodiment, the guide cover 86 is a circle shown in FIG. 4 in which the mounting surface portion 89 on the base end side is fixed to the front surface portion on the tip end side of the second movable holding member 22. It is bolted to the plate-shaped fixing plate 95. The fixing structure is such that six bolt holes are provided concentrically around the axis of the second working shaft 62 on the mounting surface portion 89 at an equal angular pitch, and the disc-shaped fixing plate 95 has an angle of, for example, 15 degrees. 24 bolt holes 96 are provided at a pitch, and the selected bolt holes 96 on the disk-shaped fixing plate 95 side are aligned with the bolt holes on the guide cover 86 side so that the guide cover 86 can be mounted in a desired direction. It becomes adjustable to the one. Guide cover member 8
This adjustment of 6 allows the soil to be properly supplied to the old ridges even when the rotating state of the movable holding member 22 of the 2 is changed, or depending on the soil quality of the dry and wet fields. This is done in order to be able to correctly supply the old ridge. One mode of the adjustment is as shown by the solid line and the alternate long and short dash line in FIG.

【００３１】又図１、図３〜４において符号９７は、走
行機の進行方向後方に向けて延びる、表裏側から見て卵
形をなす整畦用ケーシングであり、その小径の基端側部
分９９が前記整畦駆動軸２７に回動自在に枢着せしめら
れており、該ケーシング９７内の先端側部分には、前記
整畦駆動軸２７と平行して整畦作業軸１００が、軸受１
０１，１０２に支持されて配置されている。そして該ケ
ーシング９７内で、図５に示すように、この整畦駆動軸
２７と整畦作業軸１００に夫々スプロケット１０３，１
０５が固設され、両スプロケットにチエーン１０６が巻
装され、前記動力軸４１（図２）の回転に伴い、スプロ
ケット１０３，１０５とチエーン１０６を介して整畦作
業軸１００が回転する。そして該整畦作業軸１００に
は、例えば図１、図３、図１２に示すように、旧畦上に
供給された盛土１０７を練り上げ状態に固く締め固める
回転式の整畦機１０９が固設されている。該整畦機１０
９は、円柱部１１０の内外端部に、円錐状面を有する内
側回転板１１１と外側回転板１１２を、軸心を共通にし
て固定してなる。なお前記整畦用ケーシング９７は、例
えば図４に示すように前記連結軸３１，３１に固設され
た支持片１１３のネジ孔に螺合されたハンドル軸１１５
を回転操作することによって、形成すべき畦高さに応じ
て適宜の回動状態とされ、その状態で保持される。In FIGS. 1 and 3 to 4, reference numeral 97 is a casing for trimming which extends backward toward the traveling direction of the traveling machine and has an oval shape when viewed from the front and back sides. A small-diameter base end side portion of the casing. 99 is rotatably pivotally attached to the ridge adjusting drive shaft 27, and a ridge adjusting working shaft 100 parallel to the ridge adjusting drive shaft 27 is provided at a tip end portion of the casing 97 in parallel with the ridge adjusting drive shaft 27.
It is arranged so as to be supported by 01 and 102. In the casing 97, as shown in FIG. 5, the sprocket wheels 103, 1 are respectively attached to the ridge driving shaft 27 and the ridge operating shaft 100.
05 is fixed, the chain 106 is wound around both sprockets, and as the power shaft 41 (FIG. 2) rotates, the trimming work shaft 100 rotates via the sprockets 103 and 105 and the chain 106. And, as shown in, for example, FIG. 1, FIG. 3 and FIG. 12, a rotary type ridger 109 is fixed to the ridge working shaft 100 for firmly compacting the embankment 107 supplied on the old ridge into a kneaded state. ing. The trimmer 10
The inner rotary plate 111 and the outer rotary plate 112 each having a conical surface are fixed to the inner and outer end portions of the columnar portion 110 with the common axis. The ridge casing 97 is, for example, as shown in FIG. 4, a handle shaft 115 screwed into a screw hole of a support piece 113 fixed to the connecting shafts 31, 31.
By rotating the, it is appropriately rotated according to the height of the ridge to be formed, and is held in that state.

【００３２】かかる構成の畦形成機１によって整畦を行
う要領を次に説明する。図１、図１０は、横断面台形状
をなす旧畦３を修復しつつ新たな畦を形成する場合を示
す。第１の可動保持部材２０の回動状態は、旧畦３の上
面高さに応じて所要のものに、例えば、旧畦の外縁１１
７から内側（田面側）の裾部下側１１８をなす耕盤近傍
迄の約２／３の部分を回転削出刃８０が円弧を描いて削
るように設定され、その状態で固定されている。又第２
の可動保持部材２２の回動状態は、削り取られた旧畦上
への盛土量に応じて、田面８５に対する土盛りロータ８
３の切り込み深さを適当にして所要の回動状態に、例え
ば、トラクタのタイヤＴの走行跡（畦際走行によって形
成された窪みであり、タイヤ幅によってその溝幅が変化
する。又その深さは、乾田であるか湿田であるかによっ
て変化する。）１１９（図１、図１０）を極力避けるよ
うに、土盛りロータ８３が旧畦から離れる方向に田面８
５に切り入る回動状態に設定され、その状態で固定され
る。Next, a description will be given of how the ridge forming machine 1 having the above-described structure adjusts the ridges. 1 and 10 show a case in which a new ridge is formed while the old ridge 3 having a trapezoidal cross section is restored. The rotation state of the first movable holding member 20 is a required state according to the height of the upper surface of the old ridge 3, for example, the outer edge 11 of the old ridge.
The rotary cutting blade 80 is set so as to cut a circular arc from about 7 to the inside (field side) to the vicinity of the tiller forming the lower side skirt 118, and is fixed in that state. Second
The rotation state of the movable holding member 22 of the embankment rotor 8 with respect to the rice field 85 depends on the amount of embankment on the scraped old ridge.
When the cutting depth of 3 is set to an appropriate turning state, for example, the running trace of the tire T of the tractor (a dent formed by running along the ridge, the groove width of which changes depending on the tire width. It changes depending on whether it is a dry field or a wet field.) In order to avoid 119 (FIG. 1 and FIG. 10) as much as possible, the embankment rotor 83 moves away from the old ridge in the field 8
It is set in a turning state for cutting into 5, and fixed in that state.

【００３３】この第１の可動保持部材２０と第２の可動
保持部材２２の、第１の固定保持部材１２及び第２の固
定保持部材１３への固定は、前記したように、６本の固
定ボルト７１，７５を用いて行う。The fixing of the first movable holding member 20 and the second movable holding member 22 to the first fixed holding member 12 and the second fixed holding member 13 is, as described above, six fixings. It is performed using bolts 71 and 75.

【００３４】この状態で、トラクタを走行させつつ畦形
成機１を稼働させると、回転削出刃８０が、旧畦３を外
側から内側（田面側）に向けて削り取る。同時に、土盛
りロータ８３が、旧畦３から離れる方向に田面８５に切
り入り、田面の土を砕きながら掻き上げる。この掻き上
げられた土は、遠心力の作用によって前記案内カバー８
６の頂面部に案内され、図１１に示すように、前記土誘
導板９１に誘導され、案内カバーの後面部８７に設けた
開口９２を通して、トラクタの進行方向後方に向け旧畦
上に供給され、旧畦の前記削出凹部９３に盛土１０７
（図１、図１２）される。In this state, when the ridge forming machine 1 is operated while the tractor is running, the rotary cutting blade 80 scrapes the old ridge 3 from the outside toward the inside (field side). At the same time, the embankment rotor 83 cuts into the rice field 85 in the direction away from the old ridge 3 and scrapes up the soil on the rice field while scraping it. The soil thus scraped up is guided by the guide cover 8 by the action of centrifugal force.
6, is guided to the soil guide plate 91 as shown in FIG. 11, and is supplied to the old ridges toward the rear in the traveling direction of the tractor through the opening 92 provided in the rear surface portion 87 of the guide cover, Embankment 107 in the cut-out recess 93 of the old ridge
(FIGS. 1 and 12).

【００３５】本発明に係る畦形成機は、前記した横断面
台形状をなすものの他、三角形状をなすもの等、従来の
各種形態の畦に応じられる。その場合も、第１の可動保
持部材２０の回動状態や、トラクタのタイヤ走行位置、
又第１、第２の固定保持部材１２、１３の上下位置を所
要に設定することによって、旧畦の外縁から内側（田面
側）に向けて旧畦の削り取りを行うことができる。そし
て土盛りロータ８３が、前記と同様にして所要の土の掻
き上げを行う。The ridge forming machine according to the present invention is applicable to various conventional forms of ridges such as those having a trapezoidal cross section and those having a triangular shape. Even in that case, the rotation state of the first movable holding member 20, the tire traveling position of the tractor,
Further, by setting the upper and lower positions of the first and second fixing and holding members 12 and 13 as required, the old ridge can be scraped from the outer edge of the old ridge toward the inside (field side). Then, the earth-filling rotor 83 scoops up the required soil in the same manner as described above.

【００３６】旧畦上に、このようにして盛り上げ状態に
土が供給された後、図１２に示すように、前記整畦機１
０９の回転により盛土１０７が練り上げ状態に締め固め
られ、図１に示す畦５が形成されることになる。After the soil is supplied to the old ridges in this way in a raised state, as shown in FIG.
Due to the rotation of 09, the embankment 107 is compacted into a kneaded state and the ridges 5 shown in FIG. 1 are formed.

【００３７】（その他の実施の形態） 第１の可動保持部材２０及び第２の可動保持部材２
２は、ボックス状のものが好ましいが、必ずしもこれに
限定されるものではない。(Other Embodiments) First movable holding member 20 and second movable holding member 2
2 is preferably box-shaped, but is not limited to this.

【００３８】 第１の可動保持部材２０及び第２の可
動保持部材２２を所要回動状態で固定させる手段として
は、前記したボルト固定手段の他、各種の公知の固定手
段を採用できる。この中には、支持杆等を介して走行機
に固定する手段も含まれる。As means for fixing the first movable holding member 20 and the second movable holding member 22 in the required rotation state, various known fixing means other than the above-mentioned bolt fixing means can be adopted. This also includes means for fixing to the traveling machine via a support rod or the like.

【００３９】 本発明において、回転削出刃による旧
畦の削り取りの態様には、図１３に示すように、該旧畦
の外側部分１１３を残す場合がある。又、同図に示すよ
うに、土盛りロータが、田面部分１１５と共に旧畦の内
側部分１１６を削り取る場合がある。In the present invention, in the aspect of scraping off the old ridge by the rotary cutting blade, the outer portion 113 of the old ridge may be left as shown in FIG. Further, as shown in the figure, the earth-filled rotor may scrape off the inner side portion 116 of the old ridge together with the rice field portion 115.

【００４０】 本発明における整畦機は、前記した回
転式のものの他、盛土部分をその上面及び側面からを叩
く方式のもの等、盛土部分を所要の畦に仕上げる各種タ
イプのものを採用できる。In addition to the above-mentioned rotary type, the ridge leveling device according to the present invention may employ various types such as a type in which the embankment portion is tapped from the upper and side surfaces thereof, or the like, which finishes the embankment portion into a required ridge.

【００４１】[0041]

【発明の効果】本発明は以下の如き優れた効果を奏す
る。 本発明は、第１の可動保持部材及び第２の可動保持
部材を、夫々、第１の駆動軸と第２の駆動軸の軸線回り
に独立して回動可能となるように設けている。従って、
修復すべき旧畦の高さに応じて該第１の可動保持部材の
回動状態を所要に設定することにより、旧畦の削り取り
を所定に行うことができる。又、第２の可動保持部材の
回動によって土盛りロータを畦から所要に離すことによ
り、タイヤ走行で形成された窪みの幅や深さが異なる場
合であっても、該窪みを極力避けて、所定量の土の掻き
上げを行うことができる。このように本発明によるとき
は、タイヤの幅が異なる場合であっても確実に整畦で
き、又乾田の整畦は勿論のこと、タイヤ走行による窪み
が深くなる湿田の整畦であっても、確実且つ容易に行い
うる。The present invention has the following excellent effects. In the present invention, the first movable holding member and the second movable holding member are provided so as to be independently rotatable around the axes of the first drive shaft and the second drive shaft, respectively. Therefore,
By setting the rotation state of the first movable holding member as required according to the height of the old ridge to be repaired, the old ridge can be scraped off in a predetermined manner. Further, by rotating the second movable holding member to separate the earth-filling rotor from the ridge as required, even if the width and depth of the recess formed by running the tire are different, avoid the recess as much as possible, It is possible to scrape a predetermined amount of soil. Thus, according to the present invention, even if the width of the tire is different, it can be surely adjusted, and not only the adjustment of the dry field, but also the adjustment of the wet field where the depression due to tire running deepens. It can be done reliably and easily.

【００４２】本発明に係る畦形成機において、第１の固
定保持部材と第２の固定保持部材の上下位置が調節自在
とされているときは、その上下位置を所要に設定するこ
とにより、旧畦の高さや旧畦の横断面形態、旧畦の削り
取り量、土質の違い（乾田か湿田か等による）、走行機
のタイヤ幅等の整畦時の諸条件に一層適合させて、より
的確な旧畦の削り取りと土の掻き上げを行うことができ
る。In the ridge forming machine according to the present invention, when the upper and lower positions of the first fixed holding member and the second fixed holding member are adjustable, the upper and lower positions are set as required to make More suitable for various conditions at the time of ridge adjustment such as height of ridges, cross-sectional shape of old ridges, scraped amount of old ridges, difference in soil quality (depending on whether it is a dry or wet field), tire width of traveling machine, etc. It is possible to scrape old ridges and scrape up soil.

【００４３】 本発明においては、土盛りロータの回
転方向を、それが、旧畦から離れる方向に田面に切り入
るように設定しているため、該土盛りロータが、旧畦の
内側部を削りながら土を掻き上げるときも、比較的硬度
の低い内側部から無理なく切り入ることとなる。それ
故、その掻き上げを、それ程負荷のかからない状態で行
うことができる。従って、前記した従来の畦形成機にお
ける如く、駆動装置を大馬力のものに構成する必要がな
い。In the present invention, since the rotation direction of the earth-filling rotor is set so as to cut into the rice field in the direction away from the old ridge, the earth-filling rotor scrapes the inner portion of the old ridge to remove the soil. Even when scraping up, it is possible to cut naturally from the inner part, which has a relatively low hardness. Therefore, the scraping can be performed with less load applied. Therefore, it is not necessary to configure the driving device with a large horsepower as in the above-mentioned conventional ridge forming machine.

【００４４】 又本発明においては、土盛りロータの
回転方向を、それが、旧畦から離れる方向に田面に切り
入るように設定しているため、湿り気のある柔らかい田
面の土を主体として、砕かれた状態で掻き上げ、これを
旧畦上に供給できる。従って、整畦機による締め固めに
よって、締まりの良い強度的に安定した畦を形成できる
こととなる。回転ロータを、これとは逆方向に回転させ
る従来の畦形成機によるときは、前記のように、旧畦の
土を裾部から上に向けて掻き上げるために、乾いて硬い
旧畦の土が大きい固まり状態で掻き上げられ易く、整畦
時に盛土を締め固めにくく、木目の荒い強度的に不安定
な畦が形成され易い問題があったのであるが、本発明は
これを解決できる利点を有している。Further, in the present invention, since the rotation direction of the earth-filling rotor is set so as to cut into the rice field in the direction away from the old ridge, the soil of the soft and moist rice field is mainly crushed. You can scrape it up and supply it to the old ridge. Therefore, by the compaction by the ridger, it is possible to form a firmly strong and stable ridge. When using a conventional ridge forming machine that rotates the rotating rotor in the opposite direction, as described above, in order to scrape the soil of the old ridge upward from the hem, the soil of the dry and hard old ridge is used. However, there was a problem that it was easy to be lifted up in a large lump state, it was difficult to compact the embankment at the time of arranging ridges, and it was easy to form unstable ridges with rough grain and strength, but the present invention has the advantage that it can solve this Have.

【００４５】 土盛りロータの回転によって掻き上げ
られた土を案内する案内カバーの内部の旧畦上方部分
に、回転削出刃と衝合しないように土誘導板を設ける構
成としたときは、掻き上げられた土を、この土誘導板に
誘導させ（全部の土とは限らない）、走行機の進行方向
後方に向けて旧畦上に排出させうることになる。When the soil guide plate is provided in the upper part of the old ridge inside the guide cover for guiding the soil scraped up by the rotation of the earth-filling rotor so as not to collide with the rotary cutting blade, The soil can be guided to the soil guide plate (not all the soil) and discharged to the old ridges toward the rear in the traveling direction of the traveling machine.

【００４６】 案内カバーの取り付け状態を変更可能
とすることにより、該２の可動保持部材の回動状態が変
わった場合や土質が変わった場合にも、案内カバーに案
内された土を旧畦上に正しく供給できることになる。By making it possible to change the mounting state of the guide cover, the soil guided by the guide cover can be put on the old ridges even when the rotating state of the second movable holding member is changed or the soil quality is changed. It will be able to supply correctly.

【００４７】 本発明に係る畦形成機において、第１
の固定保持部材と第２の固定保持部材を、畦と略直交す
る方向の左右に所要間隔を置いて配置したときは、第１
の可動保持部材と第２の可動保持部材が左右に配置され
た状態となし得る。これにより、畦形成機の前後幅を小
さくできて装置のコンパクト化を図り得、整畦を安定的
に行うことができると共に、畦形成の省力化を達成でき
る利点がある。In the ridge forming machine according to the present invention, the first
When the fixed holding member and the second fixed holding member of No. 1 are arranged with a required space left and right in a direction substantially orthogonal to the ridge,
The movable holding member and the second movable holding member can be arranged on the left and right. As a result, the front-rear width of the ridge forming machine can be reduced, the apparatus can be made compact, ridges can be stably adjusted, and labor saving of ridge formation can be achieved.

【００４８】これをより具体的に説明すれば、もしも図
１４に示すように、一本の駆動軸１２０に、第１の可動
保持部材２０と第２の可動保持部材２２を、畦と略直交
する方向の左右に重なった状態で設けるときは、第１の
可動保持部材２０と第２の可動保持部材２２を、畦と略
直交する方向の左右に位置させる場合に比べて、畦形成
機の前後の長さが長くなり、畦形成機の稼働時のバラン
スが悪くなる。このことは、トラクタの馬力数が大きけ
ればそれ程問題はないであろうが、馬力数が小さいトラ
クタの場合は畦の仕上がりに直接影響することにもな
る。又例えば図１４に示すように、トラクタ２の後部に
本発明に係る畦形成機１０９を付設して畦形成を行う場
合は、トラクタ２が田の端１２１に到達した状態におい
て、トラクタの前端１２２から整畦機１０９の整畦部前
端１２３までの距離分Ｌに付いては手作業で畦を形成し
なければならないことになるが、第１の可動保持部材２
０と第２の可動保持部材２２が重なっているために、こ
の整畦できない部分の長さが、重なりに起因して長くな
る。又、畦形成機の前後長さが長くなることに伴う前記
整畦時のバランス不良を馬力数の大きいトラクタを導入
して解消せんとする場合は、トラクタの前後長さが自ず
から長くなるため、畦の塗れない部分の長さもそれだけ
長くなる。More specifically, as shown in FIG. 14, if one drive shaft 120 is provided, the first movable holding member 20 and the second movable holding member 22 are substantially orthogonal to the ridges. When provided in a state where they are overlapped on the left and right in the ridge forming direction, compared to the case where the first movable holding member 20 and the second movable holding member 22 are positioned on the left and right in the direction substantially orthogonal to the ridge, The length of the front and back becomes long, and the balance during operation of the ridge forming machine becomes poor. This may be less problematic if the tractor has a high horsepower number, but it will also directly affect the finish of the ridge in the case of a tractor having a low horsepower number. Further, for example, as shown in FIG. 14, when a ridge forming machine 109 according to the present invention is attached to the rear portion of the tractor 2 to form a ridge, when the tractor 2 reaches the end 121 of the rice field, the front end 122 of the tractor. The distance L from the ridge adjusting unit 109 to the front end 123 of the ridge adjusting unit requires that the ridge be formed manually, but the first movable holding member 2
Since 0 and the second movable holding member 22 are overlapped with each other, the length of the portion that cannot be adjusted becomes long due to the overlap. Further, when introducing a tractor with a large horsepower number to eliminate the poor balance at the time of adjusting the ridge due to the increase in the front-rear length of the ridge forming machine, the front-rear length of the tractor naturally increases, The length of the unpainted ridge also becomes longer.

【００４９】これに対して、図１５に示すように、第１
の可動保持部材２０と第２の可動保持部材２２を、畦と
略直交する方向の左右に位置させる場合は、前記のよう
に、畦形成機の前後長さをより短く設定できて畦形成機
の稼働時のバランスを良好となしうる。かかることか
ら、馬力数の小さいトラクタであっても安定的に畦形成
を行い得ると共に、前記した畦の塗れない長さＬを短く
できるため、それだけ手作業による畦塗り作業を削減で
きることになる。又、畦形成機のバランスが良好となる
ことから馬力数の小さいトラクタを導入できる。その場
合は、トラクタの前後の長さがそれだけ短くなり、従っ
て、前記した畦の塗れない距離分Ｌをより一層短くで
き、それだけ畦形成の省力化を達成できることになる。On the other hand, as shown in FIG. 15, the first
When the movable holding member 20 and the second movable holding member 22 are positioned on the left and right in the direction substantially orthogonal to the ridge, as described above, the front-rear length of the ridge forming machine can be set to be shorter and the ridge forming machine can be set shorter. The balance during operation can be good. As a result, even with a tractor having a small horsepower number, it is possible to stably form the ridges, and the length L where the ridges cannot be applied can be shortened, so that the ridge application work by hand can be reduced. Further, since the balance of the ridge forming machine is good, a tractor with a small horsepower can be introduced. In that case, the length in the front and rear of the tractor is shortened by that much, so that the above-described distance L where the ridges cannot be applied can be further shortened, and labor saving in ridge formation can be achieved accordingly.

【図面の簡単な説明】[Brief description of the drawings]

【図１】畦形成機を説明する斜視図である。FIG. 1 is a perspective view illustrating a ridge forming machine.

【図２】その一部を断面した平面図である。FIG. 2 is a plan view of a part of the cross section.

【図３】整畦機の構成を説明する平面図である。FIG. 3 is a plan view illustrating a configuration of a trimming machine.

【図４】固定保持部材と第１、第２の可動保持部材と整
畦用ケーシングとの位置関係を説明する斜視図である。FIG. 4 is a perspective view illustrating a positional relationship among a fixed holding member, first and second movable holding members, and a trimming casing.

【図５】畦形成機の伝導機構を説明する斜視図である。FIG. 5 is a perspective view illustrating a conduction mechanism of the ridge forming machine.

【図６】第１の固定保持部材への第１の可動保持部材の
取り付けの構成を説明する斜視図である。FIG. 6 is a perspective view illustrating a configuration for attaching a first movable holding member to a first fixed holding member.

【図７】第２の固定保持部材への第２の可動保持部材の
取り付けの構成を説明する斜視図である。FIG. 7 is a perspective view illustrating a configuration of attaching a second movable holding member to a second fixed holding member.

【図８】第１の固定保持部材への第１の可動保持部材の
取り付けの構成を説明する断面図である。FIG. 8 is a cross-sectional view illustrating a configuration for attaching the first movable holding member to the first fixed holding member.

【図９】第２の固定保持部材への第２の可動保持部材の
取り付けの構成を説明する断面図である。FIG. 9 is a cross-sectional view illustrating a configuration for attaching a second movable holding member to a second fixed holding member.

【図１０】回転削出刃と土盛りロータの作用を説明する
側面図である。FIG. 10 is a side view for explaining the operation of the rotary cutting blade and the earth embedding rotor.

【図１１】案内カバーに設けた土誘導板の付設状態を説
明する斜視図である。FIG. 11 is a perspective view illustrating an attached state of a soil guide plate provided on the guide cover.

【図１２】畦形成機による整畦作用を説明する説明図で
ある。FIG. 12 is an explanatory view for explaining the ridge-reducing action of the ridge forming machine.

【図１３】旧畦の他の削り状態を説明する断面図であ
る。FIG. 13 is a cross-sectional view illustrating another scraped state of old ridges.

【図１４】第１の可動保持部材と第２の可動保持部材を
一本の駆動軸に重ねて付設した場合の問題点を説明する
平面図である。FIG. 14 is a plan view illustrating a problem when a first movable holding member and a second movable holding member are attached to one drive shaft in an overlapping manner.

【図１５】本発明に係る畦形成機の利点を説明する平面
図である。FIG. 15 is a plan view illustrating advantages of the ridge forming machine according to the present invention.

【図１６】従来の畦形成機の問題点を説明する説明図で
ある。FIG. 16 is an explanatory diagram for explaining a problem of a conventional ridge forming machine.

【符号の説明】[Explanation of symbols]

１ 畦形成機 ２ 走行機 ３ 旧畦 ５ 畦 ６ 前処理機構 １１ 固定保持部材 １２ 第１の固定保持部材 １３ 第２の固定保持部材 １９ 第１の駆動軸 ２０ 第１の可動保持部材 ２１ 第２の駆動軸 ２２ 第２の可動保持部材 ５１ 第１の作業軸 ６２ 第２の作業軸 ８０ 回転削出刃 ８３ 土盛りロータ ８６ 案内カバー ９１ 土誘導板 １０９ 整畦機 1 Ridge Forming Machine 2 Traveling Machine 3 Old Ridge 5 Ridge 6 Pretreatment Mechanism 11 Fixed Holding Member 12 First Fixed Holding Member 13 Second Fixed Holding Member 19 First Drive Shaft 20 First Movable Holding Member 21 Second Drive shaft 22 second movable holding member 51 first work shaft 62 second work shaft 80 rotary cutting blade 83 earth emplacement rotor 86 guide cover 91 soil guide plate 109 soil leveling machine

Claims (7)

【特許請求の範囲】[Claims] 【請求項１】 走行機に付設されてその進行方向に、旧
畦を修復しつつ新たな畦を形成する、前処理機構を具え
た畦形成機であって、 前記走行機の取付け部に固定される、独立して配置され
た第１の固定保持部材と、第２の固定保持部材とを具
え、該第１の固定保持部材に、該走行機の進行方向前方
或いは後方に向けて突出する第１の駆動軸を設け且つ該
第１の駆動軸に、その軸線回りに回動可能となるように
第１の可動保持部材を設け、又、前記第２の固定保持部
材に、前記走行機の進行方向前方或いは後方に向けて突
出する第２の駆動軸を設け且つ該第２の駆動軸に、その
軸線回りに回動可能となるように第２の可動保持部材を
設け、且つ、該第１の可動保持部材と第２の可動保持部
材を独立的に回動可能とすると共に、これらを夫々所要
の回動状態で固定可能としてなり、又前記第１の可動保
持部材には、前記第１の駆動軸と所要距離を隔てて平行
する第１の作業軸を配設すると共に、該第１の作業軸
を、伝導要素を介して前記第１の駆動軸に連結する一
方、前記第２の可動保持部材にも、前記第２の駆動軸と
平行する第２の作業軸を配設すると共に、該第２の作業
軸を、伝導要素を介して前記第２の駆動軸に連結してな
り、 又前記第１の作業軸には、旧畦を所要に削り取る回転削
出刃を固設する一方、前記第２の作業軸には、該回転削
出刃によって削り取られた旧畦上に土を供給するため
に、少なくとも田面部分の土を掻き上げる土盛りロータ
を固設してなり、前記第１の駆動軸の回転に伴う、前記
伝導要素を介しての第１の作業軸の回転により、前記回
転削出刃が、旧畦の外側の部分から内側（田面側）に向
けて旧畦を削り取るように回転し、且つ前記第２の駆動
軸の回転に伴う、前記伝導要素を介しての第２の作業軸
の回転により、前記土盛りロータが、旧畦から離れる方
向に田面に切り入るように回転する如くなし、 又、旧畦上の盛土を整畦機により締め固めて畦を形成す
ることを特徴とする前処理機構を具えた畦形成機。1. A ridge forming machine having a pretreatment mechanism, which is attached to a traveling machine and forms new ridges in the traveling direction of the traveling machine while restoring old ridges, the ridge forming machine being fixed to a mounting portion of the traveling machine. A first fixed holding member and a second fixed holding member that are independently arranged, and project toward the front or rear in the traveling direction of the traveling machine to the first fixed holding member. A first drive shaft is provided, a first movable holding member is provided on the first drive shaft so as to be rotatable about its axis, and the traveling machine is provided on the second fixed holding member. A second drive shaft projecting forward or backward in the traveling direction of the second drive shaft, and a second movable holding member provided on the second drive shaft so as to be rotatable about its axis; The first movable holding member and the second movable holding member are made rotatable independently of each other, The first movable holding member is provided with a first working shaft that is parallel to the first driving shaft with a required distance therebetween, and the first movable shaft is fixed to the first movable holding member. While connecting the work shaft to the first drive shaft via a transmission element, the second movable holding member is also provided with a second work shaft parallel to the second drive shaft. The second work shaft is connected to the second drive shaft via a transmission element, and the first work shaft is fixedly provided with a rotary cutting blade for cutting old ridges as required. The second working shaft is fixedly provided with an earth emplacement rotor for scraping up at least the soil on the rice field in order to supply the soil on the old ridge scraped off by the rotary cutting blade. Due to the rotation of the first working shaft through the conduction element with the rotation of the rotary cutting blade, Due to the rotation of the second ridge from the outer portion toward the inner side (field side) so as to scrape off the old ridge, and the rotation of the second working shaft through the transmission element accompanying the rotation of the second drive shaft, The earth-filling rotor was designed so as not to rotate so as to cut into the paddy field in the direction away from the old ridge, and the embankment on the old ridge was compacted by a ridger to form a ridge. Ridge forming machine. 【請求項２】 第１の固定保持部材と第２の固定保持部
材を、畦と略直交する方向の左右に所要間隔をおいて配
置したことを特徴とする請求項１記載の前処理機構を具
えた畦形成機。2. The pretreatment mechanism according to claim 1, wherein the first fixed holding member and the second fixed holding member are arranged at required intervals on the left and right in a direction substantially orthogonal to the ridge. A ridge forming machine equipped. 【請求項３】 第１の作業軸にスプロケットを固設する
と共に第１の駆動軸にスプロケットを固設し、該両スプ
ロケットにチェーンを巻装し、又第２の作業軸にスプロ
ケットを固設すると共に第２の駆動軸にスプロケットを
固設し、該両スプロケットにチェーンを巻装したことを
特徴とする請求項１又は２記載の前処理機構を具えた畦
形成機。3. A sprocket is fixed to the first work shaft, a sprocket is fixed to the first drive shaft, a chain is wound around the both sprockets, and a sprocket is fixed to the second work shaft. A ridge forming machine having a pretreatment mechanism according to claim 1 or 2, wherein a sprocket is fixedly mounted on the second drive shaft, and a chain is wound around the both sprockets. 【請求項４】 土盛りロータの回転によって掻き上げら
れた土が、該土盛りロータの上方及び旧畦上方に亘って
配置された案内カバーに案内されて旧畦上に供給される
ように構成したことを特徴とする請求項１又は２記載の
前処理機構を具えた畦形成機。4. The soil scraped up by the rotation of the earth-filling rotor is guided by a guide cover arranged over the earth-filling rotor and over the old ridge to be supplied onto the old ridge. A ridge forming machine comprising the pretreatment mechanism according to claim 1 or 2. 【請求項５】 案内カバー内の旧畦上方部分に、走行機
の進行方向後方に向けて凹に湾曲する土誘導板を、回転
削出刃と衝合しないように設け、土盛りロータによって
掻き上げられた土がこの土誘導板に誘導されて、走行機
の進行方向後方に向けて排出され、旧畦上に落下するよ
うにしたことを特徴とする請求項４記載の前処理機構を
具えた畦形成機。5. An earth guiding plate, which is concavely curved toward the rear in the traveling direction of the traveling machine, is provided in the upper part of the old ridge in the guide cover so as not to collide with the rotary cutting blade, and is scraped up by the earth embossing rotor. 5. The ridge formation with the pretreatment mechanism according to claim 4, wherein the soil is guided by the soil guide plate, discharged toward the rear in the traveling direction of the traveling machine, and dropped onto the old ridge. Machine. 【請求項６】 第２の可動保持部材の回動状態が変わっ
た場合や土質が変わった場合にも、案内カバーに案内さ
れた土が旧畦上に正しく供給されるようにするために、
案内カバーの取り付け状態を変更可能に構成されている
ことを特徴とする請求項４又は５記載の前処理機構を具
えた畦形成機。6. The soil guided by the guide cover is properly supplied onto the old ridge, even when the rotation state of the second movable holding member is changed or the soil quality is changed.
The ridge forming machine provided with the pretreatment mechanism according to claim 4 or 5, wherein the mounting state of the guide cover is changeable. 【請求項７】 第１の固定保持部材及び第２の固定保持
部材の上下位置を調節可能としたことを特徴とする請求
項１〜６の何ずれかに記載の前処理機構を具えた畦形成
機。7. A ridge having a pretreatment mechanism according to any one of claims 1 to 6, wherein the vertical positions of the first fixed holding member and the second fixed holding member are adjustable. Forming machine.