JP6651683B2 - Row forming method - Google Patents

Row forming method Download PDF

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JP6651683B2
JP6651683B2 JP2015117050A JP2015117050A JP6651683B2 JP 6651683 B2 JP6651683 B2 JP 6651683B2 JP 2015117050 A JP2015117050 A JP 2015117050A JP 2015117050 A JP2015117050 A JP 2015117050A JP 6651683 B2 JP6651683 B2 JP 6651683B2
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ridge forming
ridge
mounting
attached
stay
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JP2017000068A (en
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学 飯島
学 飯島
誠人 藤森
誠人 藤森
寛也 浦野
寛也 浦野
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Agritecno Yazaki Co Ltd
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Description

本発明は、播種機に装着して、播種と同時に畦立てを行う畦成形機を用いた畦成形方法の技術に関する。 The present invention relates to a technique of a ridge forming method using a ridge forming machine that is mounted on a sowing machine and ridges simultaneously with sowing.

従来、左右一対のディスクコルターを左右に配置して、移植機に装着して牽引することにより、畦を成形する技術が公知となっている(例えば特許文献1参照)。   2. Description of the Related Art Conventionally, a technique of forming a ridge by arranging a pair of left and right disc colters on the left and right sides, attaching the disc colter to a transplanter, and pulling the same has been known (for example, see Patent Document 1).

特許第3586886号公報Japanese Patent No. 3586886

前記特許文献1における畦成形装置においては、円板状の左右一対の左右一対のディスクコルターと、円錐台状の左右一対の高畦成形体とを二組左右並列に配置して、ディスクコルターの下周頂部と高畦成形体の下周頂部とが、本装置の進行方向一直線上に位置するように支承して高畦を形成する構成としていた。このような構成であると、左右の1組と1組の間の溝、つまり、本機左右中央にはディスクコルターと高畦成形体によって二つの溝とその間に小さな山ができてしまう。この小さな山は崩れやすいため水の流れを悪くしてしまう。また、本機左右中央側のディスクコルターの進行方向に対する角度を大きくすると、ディスクコルターの前端同士が当接して畦を成形する時に干渉してしまう。
一方、そば等を栽培する場合には、畦を成形することはなく平地に播種していた。しかし、排水性が悪い土壌では、湿害が発生することがあった。そこで、播種時に小さな畦を成形することで湿害を防止できるようにする。この小さな畦を成形するために、畦成形ディスクを播種位置の両側に配置し、隣接する畦成形ディスクは干渉しないようにするとともに、播種位置と播種位置との間には、ひとつの溝が形成されるようにしようとする。
In the ridge forming apparatus disclosed in Patent Document 1, two pairs of left and right disk-shaped corrugated disks and a pair of left and right high ridge-shaped molded bodies having a truncated cone shape are arranged in parallel on the left and right sides, and are disposed under the disk colter. The configuration was such that a high ridge was formed by supporting the circumferential top and the lower circumferential top of the high ridge molded body so as to be positioned in a straight line in the traveling direction of the present apparatus. With such a configuration, two grooves and a small mountain are formed between the pair of left and right pairs at the left and right centers of the machine, that is, in the center of the left and right sides of the unit by the disc colter and the high ridge molding. This small mountain is easy to collapse, which impairs the flow of water. Also, if the angle of the left and right center sides of the machine with respect to the traveling direction of the disc coulter is increased, the front ends of the disc coulters will come into contact with each other and interfere when forming a ridge.
On the other hand, when cultivating buckwheat or the like, seeds were sown on flat ground without forming ridges. However, soil with poor drainage properties sometimes caused moisture damage. Therefore, a small ridge is formed at the time of sowing to prevent moisture damage. In order to form these small ridges, ridge forming disks are arranged on both sides of the seeding position so that adjacent ridge forming disks do not interfere, and one groove is formed between the seeding positions Try to be.

本発明の解決しようとする課題は以上の如くであり、次にこの課題を解決するための手段を説明する。
即ち、請求項1においては、左右一対の円板状の畦成形ディスクを、前後上下左右に位置調整可能に取付可能とする支持体に取り付けて畦成形ユニットを構成し、牽引作業車の後部に複数の畦成形ユニットを左右方向に装着する畦成形機を用いた畦成形方法であって、前記畦成形ユニットを構成する左右一対の前記畦成形ディスク、前方の間隔が後方よりも大きくなるように左右対称に配置、複数の前記畦成形ユニット前後方向に交互にずらせて配置し、前記畦成形ユニットの左右隣接する畦成形ディスクを後面視で一部重複して配置するものである。
The problem to be solved by the present invention is as described above. Next, means for solving the problem will be described.
In other words, in claim 1, a pair of left and right disc-shaped ridge forming disks is attached to a support capable of being attached so that the position can be adjusted in front, rear, up, down, left and right to form a ridge forming unit. A ridge forming method using a ridge forming machine in which a plurality of ridge forming units are mounted in a left-right direction, wherein a pair of left and right ridge forming disks constituting the ridge forming unit is arranged such that a front interval is larger than a rear. arranged symmetrically, in which are arranged to be shifted alternately a plurality of said ridges formed unit in the longitudinal direction, arranged to partially overlap the ridge molded disc to the left and right adjacent the ridge molding unit in rear view.

請求項2においては、前記畦成形ユニットは牽引作業車の後部に取り付けられる播種機の後部に一体的に取り付けられるものである。 In claim 2, the ridge forming unit is integrally attached to a rear part of a seeding machine attached to a rear part of the towing work vehicle .

本発明の効果として、以下に示すような効果を奏する。
即ち、確実に畦を成形して、畦と畦の間には一つの溝が成形されて、圃場に冠水した場合であっても、水を溝へ逃がして排水性が高められ、湿害を防止できるようになった。特に、播種と同時に畦を成形できるため、種子の冠水を防ぎ、発芽時やそれ以降の湿害を回避でき、収量を向上させることができる。
The present invention has the following effects.
That is, the ridges are reliably formed, and one groove is formed between the ridges. Even if the field is flooded, the water is released to the grooves to enhance drainage, thereby reducing water damage. Can now be prevented. In particular, since ridges can be formed simultaneously with sowing, flooding of seeds can be prevented, moisture damage during germination and thereafter can be avoided, and yield can be improved.

本発明の実施形態に係る畦成形機をトラクタに装着した構成を示した側面図。FIG. 1 is a side view showing a configuration in which a ridge forming machine according to an embodiment of the present invention is mounted on a tractor. 同じく平面図。FIG. 施肥播種機に畦成形機を装着した側面図。The side view which attached the ridge forming machine to the fertilizer sowing machine. 畦成形機の側面図。The side view of a ridge forming machine. 畦成形機の平面図。The top view of a ridge forming machine. 畦成形機の後面図。Rear view of the ridge forming machine. 畦成形機の拡大平面図。The enlarged plan view of the ridge forming machine. 従来の施肥播種機の側面図。The side view of the conventional fertilizer seeder.

次に、図1、図2において、本発明の畦成形機1を施肥播種機2の後部に装着し、牽引作業車両としてのトラクタ3に装着したロータリ耕耘装置4の後部に施肥播種機2を装着した実施形態について説明する。なお、矢印F方向を前方として説明する。   Next, in FIG. 1 and FIG. 2, the ridge forming machine 1 of the present invention is mounted on the rear part of the fertilizer seeder 2, and the fertilizer seeder 2 is mounted on the rear part of the rotary tilling device 4 mounted on the tractor 3 as a towing work vehicle. The mounted embodiment will be described. The description is made with the direction of arrow F as the front.

トラクタ3の後部に作業機装着装置5を介してロータリ耕耘装置4が装着され、該ロータリ耕耘装置4のデプスフレーム6後端に横架したデプスバー7に施肥播種機2の取付ヒッチ装置8が固定される。該取付ヒッチ装置8の後端に取付バー9が横設され、該取付バー9に数条の施肥播種機2・2・・・が取り付けられる。本実施形態では4条分取り付けられる。   The rotary tilling device 4 is mounted on the rear part of the tractor 3 via the work implement mounting device 5, and the mounting hitch device 8 of the fertilizer sowing machine 2 is fixed to a depth bar 7 traversing the rear end of the depth frame 6 of the rotary tilling device 4. Is done. At the rear end of the mounting hitch device 8, a mounting bar 9 is provided laterally, and several fertilizer sowing machines 2, 2,... Are mounted on the mounting bar 9. In the present embodiment, four attachments are provided.

前記施肥播種機2は、図3に示すように、前記取付バー9に固定される取付フレーム10の後部に繰出装置11が取り付けられる。繰出装置11は肥料繰出装置11aと種子繰出装置11bからなり、肥料繰出装置11aの前部が取付フレーム10に固定され、肥料繰出装置11aの後部に種子繰出装置11bが固定される。なお、肥料繰出装置11aと種子繰出装置11bは図示しない接地輪からの動力、または、モータの動力により走行速度に同期して駆動される。   As shown in FIG. 3, the feeding device 11 of the fertilizer sowing machine 2 is attached to a rear portion of an attachment frame 10 fixed to the attachment bar 9. The feeding device 11 includes a fertilizer feeding device 11a and a seed feeding device 11b. A front portion of the fertilizer feeding device 11a is fixed to the mounting frame 10, and a seed feeding device 11b is fixed to a rear portion of the fertilizer feeding device 11a. The fertilizer feeding device 11a and the seed feeding device 11b are driven in synchronism with the traveling speed by power from a ground wheel (not shown) or power of a motor.

前記繰出装置11の上部にはホッパー12が載置固定される。ホッパー12は肥料ホッパー12aと種子ホッパー12bからなり、肥料ホッパー12aは肥料繰出装置11aの上部に固定され、種子ホッパー12bは種子繰出装置11bの上部に固定され、肥料ホッパー12aの後面に種子ホッパー12bが固定される。
前記種子繰出装置11bの下部にはガイドホースが連通され、ガイドホースの下端は下方に延設されて後述する作溝ディスク16の内側へ種子が落下するようにしている。前記肥料繰出装置11aの下部にはガイドホースが連通され、ガイドホースの下端は作溝ディスク16の外側下方へ延設され、播種位置の側方に施肥されるようにしている。但し、本実施形態では、肥料繰出装置11aと種子繰出装置11bと肥料ホッパー12aと種子ホッパー12bを設けているが、作業形態によっては肥料繰出装置11aと肥料ホッパー12aの施肥装置、または、種子繰出装置11bと種子ホッパー12bの播種装置のみで構成することもできる。
A hopper 12 is mounted and fixed on an upper portion of the feeding device 11. The hopper 12 includes a fertilizer hopper 12a and a seed hopper 12b. The fertilizer hopper 12a is fixed to an upper portion of the fertilizer feeding device 11a. The seed hopper 12b is fixed to an upper portion of the seed feeding device 11b. Is fixed.
A guide hose is communicated with a lower portion of the seed feeding device 11b, and a lower end of the guide hose extends downward so that the seeds fall into a groove disc 16 described later. A guide hose communicates with a lower portion of the fertilizer feeding device 11a, and a lower end of the guide hose extends downward and outward of the groove disc 16 so that fertilizer is applied to the side of the seeding position. However, in the present embodiment, the fertilizer feeding device 11a, the seed feeding device 11b, the fertilizer hopper 12a, and the seed hopper 12b are provided. It is also possible to configure only the seeding device of the device 11b and the seed hopper 12b.

前記取付フレーム10の下部には平行リンク13・13を介して播種フレーム14が上下揺動自在に連結される。前記下側の平行リンク13の前枢支軸と上側の平行リンク13の後枢支軸との間にはバネ15が連結される。つまり、平行リンク13・13の前後方向の対角線上の枢支軸間に、バネ15が介装され、播種フレーム14を常に一定力で下方に付勢し圃場面の凹凸に対応できるようにしている。   A seeding frame 14 is connected to the lower part of the mounting frame 10 via parallel links 13 so as to be vertically swingable. A spring 15 is connected between a front pivot shaft of the lower parallel link 13 and a rear pivot shaft of the upper parallel link 13. That is, the spring 15 is interposed between the pivotal shafts on the diagonal line in the front-rear direction of the parallel links 13, 13, and constantly urges the seeding frame 14 downward with a constant force so as to be able to cope with the unevenness of the field scene. I have.

前記播種フレーム14の前端から下方に支持杆が垂設され、該支持杆の下端に左右一対の円板状の作溝ディスク16・16が平面視V字状に回転自在に取り付けられる。前記播種フレーム14の後端に本発明の畦成形機1が取り付けられる。なお、従来の施肥播種機は、図8に示すように、播種フレーム14の前下部から取付杆を後下方に延設して下端に覆土板17を取り付け、播種フレーム14の後端からローラフレーム19を後下方に延設して鎮圧ローラ18を取り付けていた。本発明の畦成形機1は、覆土板17と鎮圧ローラ18を外して、ローラフレーム19の代わりに畦成形機1の支持体20(覆土装着ステー21の前端)を取り付けるようにしている。従って、従来の施肥播種機を有効に利用でき、専用の牽引装置等を設計・製作したり、購入したりする必要がなく、安価に得ることができる。   A support rod is provided downward from the front end of the seeding frame 14, and a pair of left and right disc-shaped grooved disks 16 is rotatably attached to the lower end of the support rod in a V-shape in plan view. The ridge forming machine 1 of the present invention is attached to the rear end of the seeding frame 14. As shown in FIG. 8, the conventional fertilizer sowing machine has a mounting rod extending from the lower front part of the seeding frame 14 to the lower rear, a soil cover 17 at the lower end, and a roller frame from the rear end of the seeding frame 14. The pressure reducing roller 18 was attached to the lower part 19 by extending it downward and rearward. In the ridge forming machine 1 of the present invention, the cover plate 17 and the pressure-reducing roller 18 are removed, and the support 20 (the front end of the cover mounting stay 21) of the ridge forming machine 1 is attached instead of the roller frame 19. Therefore, the conventional fertilizer sowing machine can be used effectively, and there is no need to design and manufacture a dedicated traction device or the like, and it is possible to obtain it at low cost.

次に、本発明の畦成形機1について、図4乃至図7より説明する。
畦成形機1は、支持体20に左右の畦成形ディスク(覆土板)26・26が取り付けられて、畦成形ユニット30が構成される。図2においては4つの畦成形ユニット30が装着される。支持体20は、前記播種フレーム14の後端に取り付ける覆土装着ステー21と、該覆土装着ステー21に前後位置調節可能に取り付けるステー取付体22と、該ステー取付体22に左右方向に位置変更可能に取り付けられる左右の取付ステー23・23と、該取付ステー23・23のそれぞれの外端に固定される角度高さ変更体24・24と、該角度高さ変更体24・24に左右角度及び高さを調節可能に取り付けられる支持杆25・25から構成され、該支持杆25・25の下端に畦成形ディスク26・26が回転自在に支持される。
Next, the ridge forming machine 1 of the present invention will be described with reference to FIGS.
In the ridge forming machine 1, left and right ridge forming disks (covering plates) 26, 26 are attached to a support 20, and a ridge forming unit 30 is configured. In FIG. 2, four ridge forming units 30 are mounted. The support body 20 includes a cover mounting stay 21 attached to the rear end of the seeding frame 14, a stay attachment 22 attached to the cover attachment stay 21 so as to be adjustable in the front-rear position, and a position changeable in the left-right direction on the stay attachment 22. Left and right mounting stays 23, 23, angle height change bodies 24, 24 fixed to the respective outer ends of the mounting stays 23, 23 The supporting rods 25 are mounted so as to be adjustable in height, and the ridge forming disks 26 are rotatably supported at the lower ends of the supporting rods 25.

前記覆土装着ステー21は、取付部21aとステー部21bからなり、取付部21aはプレートを平面視コ字状に折り曲げて、播種フレーム14の後端に固定できるようにしている。つまり、従来の施肥播種機2のローラフレーム19の前端と同形状に構成して、容易に着脱できて交換できるようにしている。ステー部21bは角パイプからなり、前端を取付部21aの後面に固定し、後方へ水平方向に延設している。   The soil covering mounting stay 21 includes a mounting portion 21a and a stay portion 21b. The mounting portion 21a bends the plate into a U-shape in plan view so that the plate can be fixed to the rear end of the seeding frame 14. That is, it is configured in the same shape as the front end of the roller frame 19 of the conventional fertilizer sowing machine 2 so that it can be easily attached and detached and replaced. The stay portion 21b is formed of a square pipe, and has a front end fixed to the rear surface of the mounting portion 21a and extends rearward in the horizontal direction.

前記ステー取付体22は、前後方向嵌合部22aと左右方向嵌合部22bからなり、前後方向嵌合部22aは角パイプにより構成して前記覆土装着ステー21のステー部21bを前後摺動自在に外嵌してボルト27により任意位置で固定できるようにしている。前記左右方向嵌合部22bは上下平行に配置した一対の角パイプからなり、左右の取付ステー23・23の一端をそれぞれ挿入できるようにし、ボルト28・28により取付ステー23・23を任意位置で固定できるようにしている。本実施形態では、左右方向嵌合部22bの上側の角パイプに右側の取付ステー23の左端を挿入し、下側の角パイプに左側の取付ステー23の右端を挿入し、所定の位置でボルト28・28により固定している。   The stay attachment body 22 includes a front-rear direction fitting portion 22a and a left-right direction fitting portion 22b, and the front-rear direction fitting portion 22a is formed of a square pipe so that the stay portion 21b of the earth covering mounting stay 21 can slide back and forth. And can be fixed at an arbitrary position by a bolt 27. The left-right fitting portion 22b is composed of a pair of square pipes arranged in parallel in the vertical direction so that one end of each of the left and right mounting stays 23 can be inserted, and the mounting stays 23 can be moved at arbitrary positions by bolts 28. It can be fixed. In the present embodiment, the left end of the right mounting stay 23 is inserted into the upper square pipe of the left-right fitting part 22b, the right end of the left mounting stay 23 is inserted into the lower square pipe, and the bolt is inserted at a predetermined position. 28 and 28.

前記角度高さ変更体24と支持杆25と畦成形ディスク26は左右対称に構成されるため左側について説明し、右側の説明は省略する。
前記角度高さ変更体24は、前記取付ステー23の他端に固定され前後方向に延設される支持体31と、該支持体31の後端から上方に延設される支持柱32と、該支持柱32に回転自在に外嵌される支持パイプ33と、該支持パイプ33から前方に延設される固定板34と、前記支持パイプ33の後側面に固定される取付パイプ35からなる。
Since the angle height changing body 24, the support rod 25, and the ridge forming disk 26 are symmetrical, only the left side will be described, and the right side description will be omitted.
The angle height changing body 24 is fixed to the other end of the mounting stay 23 and extends in the front-rear direction, and a support column 32 extending upward from the rear end of the support 31. The support pipe 33 includes a support pipe 33 rotatably fitted to the support column 32, a fixing plate 34 extending forward from the support pipe 33, and a mounting pipe 35 fixed to a rear side surface of the support pipe 33.

前記固定板34は前記支持体31の上方に位置するように配置され、該固定板34は平面視略扇形に形成され、外周に沿って支持柱32を中心とする円弧状の長孔34aが開口され、該長孔34aを貫通して固定ネジ39が前記支持体31に形成したネジ孔に螺装され、固定板34を任意の角度位置で固定可能としている。つまり、固定板34、取付パイプ35、支持杆25、畦成形ディスク26は、支持柱32を中心として回動可能であり、固定板34と支持体31を固定ネジ39で固定することによって、畦成形ディスク26の角度を任意の角度位置で固定可能としている。   The fixing plate 34 is disposed so as to be located above the support body 31. The fixing plate 34 is formed in a substantially sector shape in plan view, and has an arc-shaped long hole 34a centered on the support column 32 along the outer periphery. A fixing screw 39 which is opened and penetrates the elongated hole 34a is screwed into a screw hole formed in the support 31 so that the fixing plate 34 can be fixed at an arbitrary angular position. That is, the fixing plate 34, the mounting pipe 35, the support rod 25, and the ridge forming disk 26 are rotatable about the support column 32, and are fixed by fixing the fixing plate 34 and the support 31 with the fixing screws 39. The angle of the forming disk 26 can be fixed at an arbitrary angle position.

前記支持杆25は角棒状に構成され、上部が角パイプで構成した前記取付パイプ35に挿入され、ボルト29により任意高さで固定可能としている。前記支持杆25の下端にボス体25aの軸心が略水平方向に向けて固設され、該ボス体25aに畦成形ディスク26の中心を支持する支持軸36が固定される。   The support rod 25 is formed in a square rod shape, is inserted into the mounting pipe 35 having an upper part formed of a square pipe, and can be fixed at an arbitrary height by a bolt 29. An axis of a boss 25a is fixed to the lower end of the support rod 25 in a substantially horizontal direction, and a support shaft 36 for supporting the center of the ridge forming disk 26 is fixed to the boss 25a.

前記畦成形ディスク26は凹面状の円板で構成され、凹んだ側を斜め前方(凸側を斜め後方)に向けて、中心が前記支持軸36に回転自在に支持される。また、前記支持軸36の前端にはスクレーパ37の一端が固定され、スクレーパ37の下辺を畦成形ディスク26の内面(前面)に接するようにして円周側へ延設している。   The ridge forming disk 26 is formed of a concave disk, and the center is rotatably supported by the support shaft 36 with the concave side facing obliquely forward (the convex side obliquely backward). Further, one end of a scraper 37 is fixed to the front end of the support shaft 36, and the lower side of the scraper 37 is extended to the circumferential side so as to contact the inner surface (front surface) of the ridge forming disk 26.

このような構成において、そばを播種する場合には、取付バー9に対して左右方向所定の間隔で施肥播種機2・2・・・が取り付けられる。本実施形態では、取付バー9に30センチメートル間隔で施肥播種機2が4台取り付けられる。つまり、図6に示す条間W1
=300mmとしている。
In such a configuration, when sowing soba, the fertilizer sowing machines 2 are attached to the mounting bar 9 at predetermined intervals in the left-right direction. In the present embodiment, four fertilizer sowing machines 2 are mounted on the mounting bar 9 at intervals of 30 cm. That is, the strip W1 shown in FIG.
= 300 mm.

そして、前記播種フレーム14の後部から後方に延設した覆土装着ステー21にはステー取付体22が前後摺動可能に取り付けられ、ボルト27により任意位置で固定可能とされるが、畦成形ディスク26の配置位置は、図2に示すように、左右隣接する畦成形ユニット30・30の畦成形ディスク26・26は、交互に前後ずらせて配置される。所謂、畦成形ディスク26・26は千鳥配置としている。本実施形態では、右側の施肥播種機2から後方に延設した覆土装着ステー21の前部にステー取付体22が固定され、右から2番目の施肥播種機2から後方に延設した覆土装着ステー21にはその後部にステー取付体22が固定され、右から3番目の施肥播種機2から後方に延設した覆土装着ステー21にはその前部にステー取付体22が固定され、右から4番目の施肥播種機2から後方に延設した覆土装着ステー21にはその後部にステー取付体22が固定される。
こうして、図5に示すように、隣接する畦成形ユニット30・30の畦成形ディスク26・26は、左右方向において干渉することなくできるだけ近づけて配置されるようになる。
A stay mounting body 22 is attached to the soil covering mounting stay 21 extending rearward from the rear part of the seeding frame 14 so as to be slidable back and forth, and can be fixed at an arbitrary position by a bolt 27. As shown in FIG. 2, the ridge forming disks 26 of the ridge forming units 30 adjacent to each other are alternately shifted back and forth. The so-called ridge forming disks 26 are arranged in a staggered arrangement. In the present embodiment, a stay mounting body 22 is fixed to the front of a soil covering mounting stay 21 extending rearward from the right fertilizer sowing machine 2, and a soil covering extending rearward from the second fertilizer sowing machine 2 from the right. A stay mounting body 22 is fixed to the back of the stay 21, and a stay mounting body 22 is fixed to the front of the soil covering mounting stay 21 extending rearward from the third fertilizer sowing machine 2 from the right, and from the right. A stay mounting body 22 is fixed to a rear portion of the soil covering mounting stay 21 extending rearward from the fourth fertilizer sowing machine 2.
In this way, as shown in FIG. 5, the ridge forming disks 26 of the adjacent ridge forming units 30 are arranged as close as possible without interference in the left-right direction.

また、図5、図6に示すように、前記一つの畦成形ユニット30の左右の畦成形ディスク26・26の間隔W2は、ステー取付体22に対してボルト28を緩めて、取付ステー23・23を左右方向に摺動させることにより任意に調節すことが可能となる。この畦成形ディスク26・26の間隔W2は、施肥播種機2・2の間隔(条間W1)よりも短くし(W1>W2)、隣接する左右の畦成形ディスク26・26は、後面視で一部重複するように配置される。こうして、隣接する左右の畦成形ディスク26・26によりひとつの溝を形成することができる。なお、重複せずに離れて配置すると従来のように畦成形ディスク26と畦成形ディスク26の間に山ができてしまう。また、隣接する左右の畦成形ディスク26・26を後面視で完全に重複させると前側の畦成形ディスク26により土が片方へのみ移動され、後側の畦成形ディスク26には移動させる土が少なく、他方には畦が成形できなくなる。   As shown in FIGS. 5 and 6, the distance W2 between the left and right ridge forming disks 26 of the one ridge forming unit 30 is determined by loosening the bolt 28 with respect to the stay mounting body 22 so that the mounting stay 23. The slider 23 can be arbitrarily adjusted by sliding in the left and right direction. The interval W2 between the ridge forming disks 26, 26 is shorter than the interval between the fertilizer / seeding machines 2.2 (row W1) (W1> W2), and the adjacent left and right ridge forming disks 26, 26 are viewed from the rear. They are arranged so as to partially overlap. In this way, one groove can be formed by the adjacent left and right ridge forming disks 26. In addition, if they are arranged apart from each other without being overlapped, a mountain is formed between the ridge forming disks 26 as in the related art. Further, when the adjacent left and right ridge forming disks 26 and 26 are completely overlapped in the rear view, the soil is moved to only one side by the front ridge forming disk 26, and the rear ridge forming disk 26 has less soil to be moved. On the other hand, ridges cannot be formed on the other side.

また、図7に示すように、畦成形ディスク26の平面視における進行方向に対する角度θ(軸心に対して直角方向の面の角度)は、前記固定ネジ39を緩めることで、支持柱32を中心に固定板34、支持杆25、畦成形ディスク26を回転させて変更できる。本実施形態では、前後方向から40度までの範囲(0〜40°)で変更でき、その範囲は長孔34aにより規制される。畦成形ディスク26を大きく傾斜させるほど土寄せ量は多くなる。一方、牽引抵抗も大きくなる。なお、畦成形ディスク26の傾斜角度が容易に分かるように長孔34aに沿って目盛を設けてもよい。   As shown in FIG. 7, the angle θ (the angle of the surface in a direction perpendicular to the axis) with respect to the traveling direction of the ridge forming disk 26 in plan view can be adjusted by loosening the fixing screw 39. It can be changed by rotating the fixing plate 34, the support rod 25, and the ridge forming disk 26 at the center. In the present embodiment, the angle can be changed in a range (0 to 40 degrees) from the front-back direction to 40 degrees, and the range is regulated by the long hole 34a. The more the ridge forming disk 26 is inclined, the greater the amount of soil approaching. On the other hand, traction resistance also increases. A scale may be provided along the long hole 34a so that the inclination angle of the ridge forming disk 26 can be easily recognized.

そして、畦成形ディスク26の高さは、ボルト29を緩めることにより、取付パイプ35に対して支持杆25を上下方向に摺動させて、高さ調節が可能となる。図3に示すように、畦成形ディスク26の下部が作溝ディスク16よりも深く土中に入るように高さが調節される。本実施形態では、そば用の畦成形機1としているため、小畦を成形できればよく、畦成形ディスク26の直径は、230mm程度とし、条間に配置できて、播種と同時に畦立ができるようにしている。そして、地表から畦成形ディスク26の下端までの長さ(深さ)Dは80mm程度が土中に入るようにし、前記角度θは30度程度傾ける。この状態で施肥播種機2を牽引しながら畦成形作業を行うと、畦上端から溝底部までの高さは100mm程度に形成でき、地表には50mm程度の小畦が形成される。しかし、土質や走行速度等の違いによって畦と溝は所望の大きさに成形できないことがある。このような場合には、前記ボルト29を緩めて支持杆25の高さを調整したり、固定ネジ39を緩めて畦成形ディスク26の角度を変更したり、この角度変更に合わせてボルト28を緩めて取付ステー23の位置を変更して、所望の畦高さ及び溝深さに調整することができる。   The height of the ridge forming disk 26 can be adjusted by loosening the bolt 29 and sliding the support rod 25 vertically with respect to the mounting pipe 35. As shown in FIG. 3, the height is adjusted so that the lower part of the ridge forming disk 26 enters the soil deeper than the groove forming disk 16. In the present embodiment, since the ridge forming machine 1 for buckwheat is used, it is sufficient that a small ridge can be formed. The diameter of the ridge forming disk 26 is set to about 230 mm, and it can be arranged between the strips so that the ridge can be formed simultaneously with the seeding. I have to. The length (depth) D from the ground surface to the lower end of the ridge forming disk 26 is set so that about 80 mm enters the soil, and the angle θ is inclined about 30 degrees. In this state, when the ridge forming operation is performed while pulling the fertilizer sowing machine 2, the height from the top of the ridge to the bottom of the groove can be formed to about 100 mm, and a small ridge of about 50 mm is formed on the ground surface. However, ridges and grooves may not be formed to a desired size due to differences in soil quality, running speed, and the like. In such a case, the bolt 29 is loosened to adjust the height of the support rod 25, the fixing screw 39 is loosened to change the angle of the ridge forming disk 26, and the bolt 28 is adjusted in accordance with this angle change. By loosening and changing the position of the mounting stay 23, it is possible to adjust to the desired ridge height and groove depth.

このように構成した施肥播種機2と畦成形機1をトラクタ3のロータリ耕耘装置4に装着して、耕耘後に播種と畦成形を同時に行うと、後面視において、播種位置近傍に小畦が形成され、播種位置と播種位置の間にひとつの溝が形成されるようになる。こうして、播種と同時に畦を成形できるため、雨が降っても溝に沿って排水され、種子の冠水を防ぎ、発芽時やそれ以降の湿害を回避でき、収量を向上させることができる。
但し、上記実施形態において、前記支持杆25、取付パイプ35、取付ステー23、左右方向嵌合部22b、覆土装着ステー21、前後方向嵌合部22aはそれぞれ断面四角状に構成したがその形状は限定するものではなく、六角形等の多角形で構成することもできる。また、固定方法はボルトやネジに限定するものではなく、ピンやカム等で固定することもできる。
When the fertilizer sowing machine 2 and the ridge forming machine 1 configured as described above are mounted on the rotary tilling device 4 of the tractor 3 and sowing and ridge forming are performed simultaneously after tilling, small ridges are formed near the seeding position in rear view. Then, one groove is formed between the sowing positions. In this way, the ridges can be formed at the same time as seeding, so that even if it rains, it is drained along the ditch, preventing flooding of the seeds, avoiding moisture damage at the time of germination and thereafter, and improving the yield.
However, in the above-described embodiment, the supporting rod 25, the mounting pipe 35, the mounting stay 23, the left-right fitting portion 22b, the soil covering mounting stay 21, and the front-rear fitting portion 22a are each configured to have a square cross section. The shape is not limited, and may be a polygon such as a hexagon. Further, the fixing method is not limited to a bolt or a screw, but may be a pin or a cam.

以上のように、左右一対の円板状の畦成形ディスク26・26を、前後上下左右に位置調整可能に取付可能とする支持体20に取り付けて畦成形ユニット30を構成し、牽引作業車となるトラクタ3の後部に複数の畦成形ユニット30・30・・・を左右方向に装着する畦成形機1であって、複数の前記畦成形ユニット30・30・・・は前後方向に交互にずらせて配置されるので、畦成形ユニット30の左右の畦成形ディスク26・26の間隔を広げても、左右に隣接する畦成形ディスク26と当たることがなく、隣接する畦成形ディスク26・26を近づけて配置して、一つの溝を成形することができ、畦も成形することができ、排水性を高め、湿害を防止できる。また、円板状の畦成形ディスク26で畦を成形するため、進行方向に対する抵抗を小さくでき、畝立器(培土板)のように板面に当たる土を全て側方へ移動させるものではないため、大きな畦ではなく作物の種類(そば)に合わせた小さな畦を成形することができる。   As described above, a pair of left and right disk-shaped ridge forming disks 26, 26 is attached to the support body 20 which can be attached to the front and rear, top and bottom, and left and right so that the position can be adjusted to form the ridge forming unit 30. Is a ridge forming machine 1 in which a plurality of ridge forming units 30, 30... Are mounted in the left-right direction at the rear of the tractor 3, and the plurality of ridge forming units 30, 30. Even if the space between the left and right ridge forming disks 26 of the ridge forming unit 30 is widened, the adjacent ridge forming disks 26 do not come into contact with the left and right adjacent ridge forming disks 26 and are brought close to each other. It is possible to form one groove and ridges by arranging them so that drainage can be enhanced and moisture damage can be prevented. In addition, since the ridges are formed by the disk-shaped ridge forming disk 26, the resistance in the traveling direction can be reduced, and not all the soil that hits the plate surface is moved to the side like a ridger (a cultivation board). Instead of large ridges, small ridges can be formed according to the type of crop (buckwheat).

また、前記畦成形ユニット30の左右隣接する畦成形ディスク26・26は、後面視で一部重複して配置されるので、前進とともに左右に土が振り分け移動されて、一つの溝を成形でき、二つの畦成形ディスク26・26の間に更に小さい山を成形することがなく、きれいな溝を成形できる。   Further, the ridge forming disks 26, 26 adjacent to the ridge forming unit 30 on the left and right sides are partially overlapped in rear view, so that the soil is moved to the left and right as the vehicle advances, and one groove can be formed. A clean groove can be formed without forming a smaller mountain between the two ridge forming disks 26.

また、前記畦成形ユニット30はトラクタ3の後部に取り付けられる播種機2の後部に一体的に取り付けられるので、播種と同時に畦成形ができ、畦の中央に播種ができるため、播種位置は高い位置で溝から離れ、湿害に対する効果を更に高められる。   Also, since the ridge forming unit 30 is integrally attached to the rear of the seeder 2 attached to the rear of the tractor 3, ridges can be formed at the same time as seeding, and seeding can be performed at the center of the ridge. By separating from the groove, the effect on moisture damage can be further enhanced.

1 畦成形機
3 トラクタ
20 支持体
26 畦成形ディスク
30 畦成形ユニット


Reference Signs List 1 ridge forming machine 3 tractor 20 support 26 ridge forming disk 30 ridge forming unit


Claims (2)

左右一対の円板状の畦成形ディスクを、前後上下左右に位置調整可能に取付可能とする支持体に取り付けて畦成形ユニットを構成し、牽引作業車の後部に複数の畦成形ユニットを左右方向に装着する畦成形機を用いた畦成形方法であって、前記畦成形ユニットを構成する左右一対の前記畦成形ディスク、前方の間隔が後方よりも大きくなるように左右対称に配置、複数の前記畦成形ユニット前後方向に交互にずらせて配置し、前記畦成形ユニットの左右隣接する畦成形ディスクを後面視で一部重複して配置することを特徴とする畦成形方法A pair of left and right disc-shaped ridge forming discs is attached to a support that can be attached to the front and rear, up and down, and left and right so that the position can be adjusted to form a ridge forming unit. a ridge forming method using the ridge forming machine to be mounted on a pair of left and right ridge forming disks constituting the ridge forming unit, disposed symmetrically as forward interval is larger than the rear, a plurality said ridges forming unit to be shifted alternately in the longitudinal direction are arranged, ridge molding method characterized by disposing partially overlap the ridge molded disc to the left and right adjacent the ridge molding unit in rear view of the. 前記畦成形ユニットは牽引作業車の後部に取り付けられる播種機の後部に一体的に取り付けられることを特徴とする請求項1に記載の畦成形方法The ridge forming method according to claim 1, wherein the ridge forming unit is integrally attached to a rear part of a seeder attached to a rear part of the towing work vehicle .
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