JP2014007976A - Seedling transplanter - Google Patents

Seedling transplanter Download PDF

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JP2014007976A
JP2014007976A JP2012145729A JP2012145729A JP2014007976A JP 2014007976 A JP2014007976 A JP 2014007976A JP 2012145729 A JP2012145729 A JP 2012145729A JP 2012145729 A JP2012145729 A JP 2012145729A JP 2014007976 A JP2014007976 A JP 2014007976A
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seedling
planting
leveling member
leveling
float
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Manabu Namoto
学 名本
Hitoshi Okumura
仁 奥村
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
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  • Guiding Agricultural Machines (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide a seedling transplanter including: a land-leveling member, by which missing plant can be prevented from occurring caused by pushing down or washing away a seedling, because when the mud of a field surface is crushed or when irregularities thereof are leveled, the mud or water flow is moved to the side opposite to the side, at which the seedling was planted; and a seedling planting section with a simple construction.SOLUTION: The seedling transplanter is provided with a seedling planting section 7 comprising a float 4 for sliding on a farm field surface to flatten the farm field surface, a seedling tank 5 for accommodating and delivering a mat seedling, and a planting device 6 for taking the seedling from the seedling tank 5 and planting the seedling in the farm field, in manners to ascend and descend through a lift link 9, on the back portion of a running car body 3 having right and left front wheels 1 and 1 and rear wheels 2 and 2. In front of the float 4, there is provided a land-leveling member 10 for leveling the farm field surface between the right and left rear wheels 2 and 2. The land-leveling member 10 can be changed into the inclined posture of a forward left side L or the inclined posture of a forward right side R based on a running direction F.

Description

本発明は、苗を植え付ける圃場面を均平する際に生じる泥押しによる苗の押し倒しを防止しつつ、整地性を向上させる整地部材を備える苗移植機に関するものである。   The present invention relates to a seedling transplanter provided with a leveling member that improves leveling while preventing the seedling from being pushed down by mud pressing that occurs when leveling a field scene where a seedling is planted.

圃場面に接触して均平するフロートを下部に備える苗植付部の前側に、該フロートで均平する直前の凹凸や土塊を、整地ロータによって均平する技術(例えば、特許文献1参照)が知られている。   A technique for leveling the unevenness and soil mass just before leveling with the float with a leveling rotor on the front side of the seedling planting portion provided with a float that is leveled in contact with the farm scene (see, for example, Patent Document 1) It has been known.

特開2009−232715号公報JP 2009-232715 A

しかしながら、苗植付部の下部に設けるフロートの前側に整地ロータを左右方向に配置した苗移植機は、整地ロータを設けるためのフレームや伝動系統の構成が複雑化しやすいと共に、重量が増加し易く、凹凸を均平したり土塊を破砕する際に泥押しや水押しが発生し、隣接する植付苗を泥土で押し倒したり水流で押し流してしまい、苗の無い欠株区間が発生してしまう問題がある。   However, in the seedling transplanting machine in which the leveling rotor is arranged in the left-right direction on the front side of the float provided at the lower part of the seedling planting part, the configuration of the frame and transmission system for providing the leveling rotor is likely to be complicated, and the weight is likely to increase. The problem is that mud pushing and water pushing occur when leveling the unevenness and crushing the clot, and the adjacent planted seedlings are pushed down with mud or washed away by the water flow, resulting in a missing section without seedlings. There is.

また、苗の無くなった部分には人手で苗を植え付ける必要があるので、作業者の労力が増大する問題がある。
本件発明は、上記の問題を解決することを課題とする。
In addition, since it is necessary to plant seedlings manually in the portion where the seedlings are lost, there is a problem that the labor of the operator increases.
This invention makes it a subject to solve said problem.

請求項1に記載の発明は、圃場面を滑走均平するフロート4と、マット苗を収容して繰出す苗タンク5と、該苗タンク5から苗を取って圃場に植え付ける植付装置6から構成される苗植付部7を、左右の前輪1,1と後輪2,2を備える走行車体3の後部にリフトリンク9を介して昇降可能に設けた苗移植機において、前記フロート4の前部に、前記左右の後輪2,2の左右間の圃場面を均す整地部材10を設け、該整地部材10を走行方向Fを基準として前方左側L、または前方右側Rの傾斜姿勢に切替可能に構成したことを特徴とする苗移植機とする。   The invention described in claim 1 includes a float 4 for leveling a field scene, a seedling tank 5 for receiving and feeding matted seedlings, and a planting device 6 for taking seedlings from the seedling tank 5 and planting them in a field. In the seedling transplanting machine in which the seedling transplanting portion 7 configured is provided in the rear portion of the traveling vehicle body 3 including the left and right front wheels 1 and 1 and the rear wheels 2 and 2 through a lift link 9, A leveling member 10 is provided at the front to level the field between the left and right rear wheels 2, 2, and the leveling member 10 is inclined to the front left side L or the front right side R with respect to the traveling direction F. The seedling transplanter is characterized by being configured to be switchable.

苗移植機による植付作業は、走行車体3の走行に伴い、苗植付部7のフロート4が圃場面の凹凸に接触して均平し、該苗植付部7の重量の一部を支持しながら、均平された圃場面に植付装置6が苗タンク5から苗を掻き取って一定の深さに植え付ける植付作業方式としている。   The planting operation by the seedling transplanting machine is performed by moving the traveling vehicle body 3 so that the float 4 of the seedling planting unit 7 comes in contact with the unevenness of the field scene and leveles, and a part of the weight of the seedling planting unit 7 is obtained. While being supported, the planting device 6 scrapes seedlings from the seedling tank 5 and plantes them to a certain depth in a leveled farming scene.

これにより、各フロート4によって均平される圃場面を、該フロート4の前側に設ける整地部材10によって先に掻き均すことができるので、大きい土塊や圃場面の凹凸等を該整地部材10によってあらかじめ破砕、均平し、後続のフロート4で確実に圃場面を均平することができる。   Thereby, the field scene leveled by each float 4 can be first scraped and leveled by the leveling member 10 provided on the front side of the float 4. Crushing and leveling can be performed in advance, and the farm scene can be leveled reliably with the subsequent float 4.

前記整地部材10は、該整地部材10の向きを走行車体3の走行方向Fを基準として前方左側L、又は右側Rに傾斜姿勢になるように、即ち、該整地部材10の幅方向に沿う整地部材線Aの向きを、走行方向Fから左側L、又は右側Rに切り替えて、苗植付部7の植付作業形態に合わせることができるので、植付作業時は、該整地部材10の傾斜姿勢を隣接する苗の既植付条とは反対方向に対向させることにより、該整地部材10が泥押しや水押し等を発生させても、泥土や水流が既植付条に向かうことを防止できる。   The leveling member 10 is arranged so that the leveling member 10 is inclined to the front left side L or the right side R with respect to the traveling direction F of the traveling vehicle body 3, that is, the leveling member along the width direction of the leveling member 10. Since the direction of the member line A can be switched from the traveling direction F to the left side L or the right side R to match the planting operation mode of the seedling planting part 7, the slope of the leveling member 10 can be used during the planting operation. By facing the posture in the opposite direction to the adjacent seedling strips of adjacent seedlings, even if the leveling member 10 generates mud pushing, water pushing, etc., mud soil and water flow are prevented from moving toward the existing planting strips. it can.

そして、前記整地部材10によって均らされた直後の圃場面を各フロート4が均平した後に、植付装置6による苗の植付が行われるので、苗の植付深さを安定させることができる。   And since the planting of the seedling by the planting device 6 is performed after each float 4 leveles the field scene immediately after leveling by the leveling member 10, the planting depth of the seedling can be stabilized. it can.

また、圃場端で約180度の旋回走行を行い、進行方向が前の作業条から反転し、隣接の既植付条が変わったときは、前記整地部材10の整地部材線Aの向きも連動させて切り替える構成とする。該整地部材10の左側Lまたは右側Rへの傾斜姿勢の切替操作は、前記走行車体3の運転席16に搭乗する運転者が操作レバー36による手動操作で切り替えることもできるが、操舵部材12による旋回操作に連動させ、自動的に切替できる形態とする。   Further, when turning about 180 degrees at the end of the field, the direction of travel is reversed from the previous work line, and the adjacent planting line is changed, the direction of the leveling member line A of the leveling member 10 is also interlocked. It is set as the structure switched. The switching operation of the inclination posture of the leveling member 10 to the left side L or the right side R can be switched by a manual operation by the operation lever 36 by a driver who rides on the driver's seat 16 of the traveling vehicle body 3. A form that can be automatically switched in conjunction with the turning operation.

請求項2に記載の発明は、前記整地部材10の左または右傾斜姿勢の切替を、苗の植付走行時に苗植付部7の側方の圃場面に突出して線引きする線引マーカ11の切替と連動する構成とし、前記整地部材10を該線引マーカ11の線引き側に傾斜させる構成としたことを特徴とする請求項1記載の苗移植機とする。   According to the second aspect of the present invention, the switching of the left or right tilting posture of the leveling member 10 is performed by the drawing marker 11 that projects and draws a field scene on the side of the seedling planting portion 7 when planting the seedling. The seedling transplanting machine according to claim 1, wherein the ground leveling member 10 is inclined to the drawing side of the drawing marker 11.

上記のとおり、整地部材10の整地部材線Aの平面方向傾斜の向きは、圃場端で約180度の旋回走行を行うと、左側Lまたは右側Rの傾斜姿勢に切り替えわる構成としているが、前記整地部材10の傾斜姿勢の切り替えと線引マーカ11の切替を連動する構成とすると、整地部材10の傾斜姿勢は該線引マーカ11が線引位置側に作動した側にあわせて切り替えられる。   As described above, the direction of the plane direction inclination of the leveling member line A of the leveling member 10 is configured to be switched to the left side L or right side R posture when performing a turning run of about 180 degrees at the farm field end. When the switching of the tilting posture of the leveling member 10 and the switching of the drawing marker 11 are linked, the tilting posture of the leveling member 10 is switched in accordance with the side on which the drawing marker 11 is operated to the drawing position side.

請求項3に記載の発明は、前記苗植付部7は、走行車体3の操舵部材12の旋回操作に連動して上昇して非植付形態になると共に、旋回終了操作に連動して下降して圃場に苗を植え付ける植付形態になる旋回連動制御機構を有すると共に、前記整地部材10は、切替アクチュエータ13の伸縮によって苗虚け部7の整地支持軸14周りに揺動する構成とし、前記旋回連動制御時には、前記整地部材10を旋回方向の外側位置に向けて斜め方向姿勢となるように切替連動する構成としたことを特徴とする請求項1または2に記載の苗移植機とする。   According to a third aspect of the present invention, the seedling planting portion 7 rises in conjunction with the turning operation of the steering member 12 of the traveling vehicle body 3 to be in a non-planting form and descends in conjunction with the turning end operation. In addition, the ground leveling member 10 has a structure that swings around the leveling support shaft 14 of the seedling-disappearing portion 7 by the expansion and contraction of the switching actuator 13. 3. The seedling transplanter according to claim 1, wherein at the time of the swing interlocking control, the ground leveling member 10 is configured to be switched and interlocked so as to be in an oblique orientation toward an outer position in the swing direction. .

苗移植機の植付走行Fの終端部において旋回走行するときは、操舵部材12を所定角度以上旋回操作すると、苗植付部7は植付位置から非植付作業位置に上昇すると。このとき、切替シリンダ13の伸縮によって、整地部材10は整地支持軸14の周りに揺動し、この整地部材線Aの傾斜を旋回走行の外側へ向けるように切替連動する構成とする。そして、走行車体3の旋回走行を終了する時は、操舵部材12を直進走行状態まで戻し、操作角度を所定角度未満とすると、非植付作業位置まで上昇していた苗植付部7が下降して、前記整地部材10と各フロート4が圃場面に接触して均平する姿勢となるので、植付作業の開始時から、確実に植付深さを安定させることができる。   When turning at the terminal portion of the planting travel F of the seedling transplanter, if the steering member 12 is turned more than a predetermined angle, the seedling planting portion 7 rises from the planting position to the non-planting work position. At this time, the leveling member 10 swings around the leveling support shaft 14 due to the expansion and contraction of the switching cylinder 13 and is configured to be linked and interlocked so that the inclination of the leveling member line A is directed to the outside of the turning travel. Then, when the turning of the traveling vehicle body 3 is finished, if the steering member 12 is returned to the straight traveling state and the operation angle is less than the predetermined angle, the seedling planting portion 7 that has been raised to the non-planting work position is lowered. And since the said leveling member 10 and each float 4 will be in the attitude | position which leveles in contact with a field scene, the planting depth can be stabilized reliably from the time of the planting operation start.

請求項4に記載の発明は、整地部材10は、上端部を前記フロート4の前端上部よりも低位に設定する構成としたことを特徴とする請求項1から3の何れか1項に記載の苗移植機とした。   The invention according to claim 4 is characterized in that the leveling member 10 has a configuration in which the upper end portion is set lower than the front end upper portion of the float 4. A seedling transplanter was used.

上記のとおり、整地部材10は、各フロート4の前方位置に設けられており、該フロート4で均平する前に圃場面の土塊を破砕すると共に、凹凸を均すものである。該整地部材10は、上端部がフロート4の前端上部よりも低位となる設定としているため、整地部材10が圃場面下に潜り易い状態となることを防止できる構成としている。   As described above, the leveling member 10 is provided at the front position of each float 4, and crushes the soil mass in the field before leveling with the float 4 and leveles the unevenness. Since the leveling member 10 is set so that the upper end portion is lower than the upper part of the front end of the float 4, the leveling member 10 can be prevented from entering a state where it is likely to dive under the farm scene.

特に、軟弱な土質の圃場や、深い圃場等では、前記整地部材10の上端面を越えて後方のフロート4側へ流れていく水流を多くすることにより、機体側方の既植付苗に泥や水流が多く移動することを防止できるので、苗が押し流されることが防止される。   In particular, in a soft soil field, a deep farm field, etc., by increasing the water flow that flows to the rear float 4 side beyond the upper end surface of the leveling member 10, mud is deposited on the planted seedlings on the side of the aircraft. As a result, it is possible to prevent a large amount of water and water from moving, so that the seedling is prevented from being washed away.

また、フロート4の前端部を整地部材10の上端部よりも上位に設定することにより、フロート4の上面に泥土が乗り上げにくくすることができ、フロート4による植付深さの検出が乱れることを防止できるので、苗植付部7の不要な上下揺動の発生を軽減し、植付作業を安定させることができる。   Further, by setting the front end of the float 4 higher than the upper end of the leveling member 10, it is possible to make it difficult for mud to ride on the upper surface of the float 4, and that the detection of the planting depth by the float 4 is disturbed. Since it can prevent, generation | occurrence | production of the unnecessary vertical rocking | fluctuation of the seedling planting part 7 can be reduced, and a planting operation can be stabilized.

請求項1に記載の発明は、整地部材10で各フロート4よりも先に圃場面の土塊の破砕や凹凸の均平を行うことができるので、植付装置6が苗を植え付ける圃場面が平坦になり易く、苗の植付深さが安定する。   According to the first aspect of the present invention, the soil leveling member 10 can perform the crushing of the soil mass and the leveling of the unevenness prior to each float 4, so the field scene where the planting device 6 plants the seedling is flat. The planting depth of the seedling is stabilized.

苗の植付深さが安定することにより、生育不良の発生や、水流や風により苗が流されることが防止され、苗の生育が安定すると共に、欠株の発生が防止される。
また、整地部材10を走行方向を基準として傾斜姿勢で圃場面に接触させることにより、整地部材10に押される泥土や水を機体の側方で且つ苗の未植付側に移動させることができるので、泥土に苗が押し倒されたり、水流に苗が流されたりすることが防止され、欠株が生じにくく、人手で苗を植え直す作業が不要となり、作業者の労力が軽減される。
By stabilizing the seedling planting depth, it is possible to prevent the occurrence of poor growth and to prevent the seedling from being washed away by water flow or wind, so that the growth of the seedling is stabilized and the occurrence of a missing strain is prevented.
Further, by bringing the leveling member 10 into contact with the farm scene in an inclined posture with reference to the traveling direction, mud and water pushed by the leveling member 10 can be moved to the side of the machine body and to the unplanted side of the seedling. Therefore, the seedling is prevented from being pushed down by the mud or the seedling is washed away into the water stream, the stock is less likely to be lost, and the work of replanting the seedling manually becomes unnecessary, thereby reducing the labor of the worker.

そして、整地作業を整地部材10で行うことにより、構成が簡潔になり、部品点数が削減されるので、苗植付部7の軽量化や、メンテナンスの向上が図られる。
請求項2に記載の発明は、請求項1記載の発明の効果に加えて、前記整地部材10の整地部材方向線Aの向きを線引マーカ11の突出方向の切替に連動させることができるので、操作性が向上すると共に、誤作動が防止されて泥土や水流の既植付側への移動が防止される。
Then, by performing leveling work with the leveling member 10, the configuration becomes simple and the number of parts is reduced, so that the seedling planting portion 7 can be reduced in weight and maintenance can be improved.
In addition to the effect of the invention of claim 1, the invention of claim 2 can link the direction of the leveling member direction line A of the leveling member 10 with the switching of the protruding direction of the drawing marker 11. In addition to improving operability, malfunctions are prevented, and movement of mud and water flow to the existing planting side is prevented.

請求項3に記載の発明は、請求項1または2に記載の発明の効果に加えて、整地部材10の整地部材方向線Aの向きの変更を、操舵部材12を旋回操作して走行車体3を旋回走行させると、苗植付部7が連動して昇降する制御操作に連動させる構成としたことにより、旋回を終えて苗の植付走行を開始する際に、整地部材10の傾斜姿勢の変更操作を忘れて泥土や水流を既植付側に移動させることを防止できるので、泥土に苗が押し倒されたり、水流に苗が流されたりすることが防止され、欠株が生じにくく、人手で苗を植え直す作業が不要となり、作業者の労力が軽減される。   In addition to the effect of the invention according to claim 1, the invention according to claim 3 changes the direction of the leveling member direction line A of the leveling member 10 by turning the steering member 12 to turn the traveling vehicle body 3. When turning, the seedling planting section 7 is interlocked with the control operation that moves up and down in conjunction with each other. Since it is possible to prevent forgetting the change operation and to move mud and water flow to the existing planting side, it is possible to prevent the seedling from being pushed down by the mud and from being washed away into the water flow. This eliminates the need to replant seedlings and reduces the labor of the operator.

請求項4に記載の発明は、請求項1から3の何れか1項の効果に加えて、整地部材10の上端面を越えて後方のフロート4側へ流れていく水流を多くすることにより、機体側方の既植付苗に泥や水流が多く移動することを防止できるので、苗が押し流されることが防止され、欠株が生じにくく、人手で苗を植え直す作業が不要となり、作業者の労力が軽減される。   In addition to the effect of any one of claims 1 to 3, the invention described in claim 4 increases the amount of water flowing over the upper end surface of the leveling member 10 to the rear float 4 side, Since it can prevent a lot of mud and water from moving to the already planted seedlings on the side of the aircraft, it prevents the seedlings from being washed away, makes it difficult for the stock to break, and eliminates the need to manually replant the seedlings. The effort is reduced.

また、フロート4の前端部を整地部材10の上端部よりも上位に設定することにより、フロート4の上面に泥土が乗り上げにくくすることができ、フロート4による植付深さの検出が乱れることを防止できるので、苗植付部7の不要な上下揺動の発生が軽減されて、苗の植付精度が向上する。   Further, by setting the front end of the float 4 higher than the upper end of the leveling member 10, it is possible to make it difficult for mud to ride on the upper surface of the float 4, and that the detection of the planting depth by the float 4 is disturbed. Since it can prevent, generation | occurrence | production of the unnecessary vertical rocking | fluctuation of the seedling planting part 7 is reduced, and the seedling planting accuracy improves.

苗移植機の側面図Side view of seedling transplanter 苗移植機の平面図Top view of seedling transplanter 苗移植機の代掻体部の平面配置図Planar layout of the seedling transplanter 苗移植機の一部線引きマーカ部の正面図Front view of partially drawn marker part of seedling transplanter リフトシリンダ部の拡大図Enlarged view of lift cylinder 一部制御のブロック図。Block diagram of partial control. 一部制御のフローチャートPartial control flowchart (A)車体の後輪支持部の側面図、(B)車体の後輪支持部の背面図(A) Side view of rear wheel support part of vehicle body, (B) Rear view of rear wheel support part of vehicle body (A)後輪部の昇降作動状態を示す側面図、(B)後輪部の昇降作動状態を示す背面図(A) Side view showing the raising / lowering operation state of the rear wheel part, (B) Rear view showing the raising / lowering operation state of the rear wheel part

図例に基づいて、苗移植機は、前輪1と後輪2を有した走行車体3の後側に、圃場面を均平するフロート4と、マット苗を積載する苗タンク5、及び該苗タンク5から繰出される苗を圃場面に植え付ける植付装置6等から構成される多条植形態の苗植付部7を、リフトシリンダ8の伸縮によって昇降回動するリフトリンク9を介して連結して構成している。   Based on the illustrated example, the seedling transplanter has a float 4 for leveling the farm scene, a seedling tank 5 for loading mat seedlings, and the seedlings on the rear side of the traveling vehicle body 3 having the front wheels 1 and the rear wheels 2. A multi-planting seedling planting section 7 composed of a planting device 6 and the like for planting seedlings fed from the tank 5 on a farm scene is connected via a lift link 9 that moves up and down by the expansion and contraction of a lift cylinder 8. Configured.

この苗移植機において、ステアリングハンドル12の操作に連動して操向される左右の前輪1,1と、走行車体3の後部に設ける左右の後輪2,2を有する乗用四輪走行形態で、中央部にエンジン15及び運転席16を搭載し、前部には補助苗載枠17を有し、後部にはリヤフレーム18上に施肥ホッパー19、肥料繰出装置20、及び施肥ブロア21等からなる施肥装置22を搭載している。   In this seedling transplanting machine, in a riding four-wheel traveling form having left and right front wheels 1, 1 steered in conjunction with the operation of the steering handle 12, and left and right rear wheels 2, 2 provided at the rear of the traveling vehicle body 3, The engine 15 and the driver's seat 16 are mounted at the center, the auxiliary seedling mounting frame 17 is provided at the front, and the fertilizer hopper 19, the fertilizer feeding device 20, and the fertilizer blower 21 are provided on the rear frame 18 at the rear. A fertilizer application device 22 is installed.

前記エンジン15によって、フロア23の下側に構成のミッションケース24に連動の油圧無段変速装置25を伝動し、このミッションケース24内の副変速装置等を経て、前記前輪1、及び後輪2の連動軸26を伝動すると共に、PTO軸27を連動して、このPTO軸27から前記施装置22や、後部に装着の苗植付部7を駆動させる。   The engine 15 transmits a hydraulic continuously variable transmission 25 linked to a transmission case 24 configured below the floor 23, and passes through the auxiliary transmission and the like in the transmission case 24 to the front wheel 1 and the rear wheel 2. The PTO shaft 27 is interlocked to drive the application device 22 and the seedling planting portion 7 attached to the rear portion.

苗植付部7は、センタフロート4とこの左右両側のサイドフロート4をフロート軸53の周りに上下回動自在に軸層支持させて配置し、苗植付部7の主体を構成する植付フレーム28を支持装着する。この植付フレーム28の上側には、後端下り傾斜の苗タンク4を左右横方向へ往復移動するように支持し、この苗タンク4の後端下部に形成の苗取口29部に植付爪29を作動させる植付装置6を、植付フレーム28の後端部に配置して、これら苗タンク4、及び植付装置6を横方向に多数条宛て配置して多条植形態の構成としている。   The seedling planting section 7 is a planting that constitutes the main body of the seedling planting section 7 by arranging the center float 4 and the side floats 4 on both right and left sides so as to be pivotally supported around the float shaft 53 so as to be pivotable up and down. The frame 28 is supported and attached. On the upper side of the planting frame 28, the seedling tank 4 inclined at the rear end is supported so as to reciprocate in the horizontal direction, and planted in a seedling inlet 29 formed at the lower rear end of the seedling tank 4. The planting device 6 for operating the claws 29 is arranged at the rear end portion of the planting frame 28, and the seedling tank 4 and the planting device 6 are arranged in a large number in the horizontal direction to form a multi-row planting configuration. It is said.

このような苗植付部7の植付フレーム28の中央前端部にはローリング30を有し、このローリング軸30部を、リヤフレーム18の後側に連結した平行リンク形態のリフトリンク9後端部のヒッチリンク31に連結している。前記植付フレーム28は伝動ケースを主体として形成し、この前端部で前記ローリング軸30の近傍位置に入力軸を設け、この入力軸を前記PTO軸27に連結して、この伝動ケース内の伝動機構を経て前記苗タンク5を横移動し、植付装置6を駆動して、各植付装置6の先端部の植付爪32を側面視楕円形状の植付軌跡線Dに描いて作動させるように伝動構成している。   The center front end portion of the planting frame 28 of the seedling planting portion 7 has a rolling 30, and the rear end of the lift link 9 in the form of a parallel link in which the rolling shaft 30 portion is connected to the rear side of the rear frame 18. It is connected to the hitch link 31 of the part. The planting frame 28 is formed mainly of a transmission case, and an input shaft is provided at a position near the rolling shaft 30 at the front end portion. The input shaft is connected to the PTO shaft 27 to transmit power in the transmission case. The seedling tank 5 is moved laterally through the mechanism, the planting device 6 is driven, and the planting claw 32 at the tip of each planting device 6 is drawn and operated on the planting locus line D having an elliptical shape in side view. The transmission structure is as follows.

該各植付爪32が植付軌跡線Dの上支点部を下動するとき対向の苗取口29を下動して、この苗取口29に繰出されているマット苗から複数本の苗を分離保持して、下方のフロート4によって均平された圃場面に一定深さに植付けるものである。   When each of the planting claws 32 moves down the upper fulcrum portion of the planting locus line D, the opposing seedling collection port 29 is moved down, and a plurality of seedlings are formed from the mat seedlings fed to the seedling collection port 29. Are separated and held, and are planted at a fixed depth in a field scene leveled by the lower float 4.

このような走行車体3の後部に装着された苗植付部7は、前輪1と後輪2の土壌耕盤部接地支持による走行位置と、この苗植付部7のフロート4による圃場面に対する滑走位置との間の段差変動によって、リフトリンク9の上下動を介して常時走行車体3に対して上下動しながら前方へ牽引されるものであるが、運転席16の横側やダッシュボード部33等には、操作機構が配置されていて、この操作機構のうち植付レバー34を操作することにより、前記リフトシリンダ8でリフトリンク9を昇降させて、苗植付部7を植付姿勢に下降させたり、フロート4が圃場面上方に位置する非植付姿勢に上昇させるように昇降操作することができる。   The seedling planting part 7 mounted on the rear part of the traveling vehicle body 3 is adapted to the traveling position of the front wheel 1 and the rear wheel 2 by the ground cultivator part grounding support and the field scene by the float 4 of the seedling planting part 7. It is pulled forward while constantly moving up and down with respect to the traveling vehicle body 3 through the vertical movement of the lift link 9 due to the step difference between the sliding position and the side of the driver's seat 16 or the dashboard portion. 33 and the like are provided with an operation mechanism. By operating a planting lever 34 of the operation mechanism, the lift link 9 is moved up and down by the lift cylinder 8 so that the seedling planting portion 7 is planted. The float 4 can be moved up and down so that the float 4 is raised to a non-planting posture located above the farm scene.

苗植付部7は、前記センタフロート4の滑走揺動によって圃場面の硬軟や深さを検出して、昇降制御回路のコントローラ35を経て切替制御弁38を出力してリフトシリンダ8によりリフトリンク9を介して、この苗植付部7を昇降し、硬く浅い圃場面では、苗植付部7を下降し、柔く深い土壌では上昇するように昇降制御して、植付爪32による圃場面に対する植付深さを一定に維持するように植付深さの制御を行わせる。   The seedling planting unit 7 detects the hardness and depth of the field scene by the sliding swing of the center float 4, outputs the switching control valve 38 via the controller 35 of the lifting control circuit, and lifts the lift link by the lift cylinder 8. 9, the seedling planting part 7 is moved up and down, and in a hard and shallow farm scene, the seedling planting part 7 is lowered and lifted and controlled so as to rise in soft and deep soil. The planting depth is controlled so that the planting depth with respect to the surface is kept constant.

整地部材10は、横方向に長い板材から形成されていて、前記苗植付部7のフロート4と、走行車体3の後輪2との間に位置して設けられ、左右後輪2トレッド方向の圃場面全幅域部を代掻きする形態である。この整地部材10は苗植付部7に構成されて、リフトリンク9の昇降回動によって苗植付部7と一体的に昇降される。前記整地部材10の横幅方向の中央部を前記ヒッチリンク31の下方に突出する整地支持軸14の下端部に水平方向に回動可能に支持させている。この整地部材10は側面視では迎い角を形成するように前上り姿勢の傾斜面の代掻面Bに形成しているが、この整地部材10は、前記上下方向の整地支持軸14の周りにシーソ状に回動させて、この整地部材10の左右横端部を前、後に移動させて走行車体3の走行方向Fに対して、直交する真横姿勢Yから前方左側向き姿勢Lや、前方右側向き姿勢Rの斜め方向に切り替え変向できる構成としている。   The leveling member 10 is formed of a plate material that is long in the lateral direction, and is provided between the float 4 of the seedling planting portion 7 and the rear wheel 2 of the traveling vehicle body 3, and the left and right rear wheels 2 in the tread direction. It is the form which scratches the whole field area of this. This leveling member 10 is configured in the seedling planting section 7 and is lifted and lowered integrally with the seedling planting section 7 by the lifting and lowering rotation of the lift link 9. A center portion of the leveling member 10 in the lateral width direction is supported by a lower end portion of the leveling support shaft 14 protruding below the hitch link 31 so as to be rotatable in the horizontal direction. The leveling member 10 is formed on the scraped surface B of the inclined surface in the forward ascending posture so as to form an angle of attack in a side view, but the leveling member 10 is formed around the leveling support shaft 14 in the vertical direction. By rotating in a seesaw shape, the left and right lateral ends of the leveling member 10 are moved forward and backward, and the right lateral posture Y perpendicular to the traveling direction F of the traveling vehicle body 3 from the front left side posture L or the front right side It is configured to be able to switch and change the direction and orientation R in an oblique direction.

前記整地部材10の整地支持軸14周りの回動操作は、この整地部材10上の一側上面に連結した操作機構乃至操作レバー36のグリップ39を、前方走行車体3上部のレバーガイド37部に案内させるように突出させて、運転者がこの操作レバー36を操作することによって、手動操作で整地部材体10の整地部材方向線Aを前記真横姿勢Yから左向き姿勢L、又は右向き姿勢Rに切替できる操作構成としている。   When the leveling member 10 is rotated around the leveling support shaft 14, an operating mechanism or a grip 39 of the operating lever 36 connected to the upper surface on one side of the leveling member 10 is used as a lever guide 37 at the upper part of the front traveling vehicle body 3. By projecting to guide and operating the operation lever 36, the leveling member direction line A of the leveling member body 10 is switched from the right lateral posture Y to the leftward posture L or the rightward posture R by manual operation. Operation configuration is possible.

また、前記整地部材10の整地支持軸14周りの左側向きL、及び右側向きR等の水平方向の回動を行わせる切替シリンダ13を、苗植付部7の植付フレーム28の一部と、この整地部材10上面との間に亘って連結して、この切替シリンダ13をコントローラ35から出力によって伸縮させて、真横姿勢Yから左向き姿勢L、又は右向き姿勢Rに切替回動することができる。   Further, a switching cylinder 13 that performs horizontal rotation such as leftward direction L and rightward direction R around the leveling support shaft 14 of the leveling member 10 is provided with a part of the planting frame 28 of the seedling planting unit 7. The switch cylinder 13 can be connected to the top surface of the leveling member 10 and expanded and contracted by an output from the controller 35 to switch from the right side posture Y to the left side posture L or the right side posture R. .

前記整地部材10は、前記のように後輪2トレッド方向に長い板状材形態とするが、この他に丸棒、角棒、チューブ(丸、角)状、乃至これらの整地部材10の下端部に適宜高さのくし歯(ツース)を形成する等の形態として、軽量で、簡単な構成とする。しかも、できるだけ上下方向の厚さ、乃至高さを低くして、代掻整地作用時に泥土、水が越流し易く、代掻潜行の行われ易い形態に構成している。   As described above, the leveling member 10 is in the form of a plate-like material that is long in the tread direction of the rear wheel 2, but in addition to this, a round bar, a square bar, a tube (round, square), or the lower end of these leveling members 10 As a form such as appropriately forming comb teeth (tooth) on the part, the configuration is light and simple. In addition, the thickness or height in the vertical direction is made as low as possible so that the mud and water can easily overflow and the submerged submergence can easily occur.

前記苗植付部7の左右両側部には、植付走行における次行程の直進の視準目標とするための線引ラインを隣接圃場面に形成する線引マーカ11を出入切替可能に設ける。この線引マーカ11は、図4のようにかぎ型形状のマーカアーム40の先端部にマーカ軸42周りに回動自在に支持させて、このマーカアーム40の基部を、植付フレーム28の横端部に前後方向に沿うアーム軸41の周りに回動可能に支持させて、このマーカアーム40を起立回動して、前タンク5の前側横端部に沿わせて収納姿勢C1に位置させたり、マーカアーム40の横外側へ倒伏回動して、線引マーカ11を隣接圃場面に摺接させて、線引ラインを形成できる線引姿勢C2に位置させることができる。   On both the left and right sides of the seedling planting section 7, a line drawing marker 11 for forming a line drawing line in the adjacent field scene is provided so as to be able to be switched in and out. As shown in FIG. 4, the drawing marker 11 is supported by a tip end portion of a hook-shaped marker arm 40 so as to be rotatable around a marker shaft 42, and the base portion of the marker arm 40 is placed beside the planting frame 28. The end of the marker arm 40 is supported so as to be pivotable around the arm shaft 41 extending in the front-rear direction, and the marker arm 40 is pivoted upright so as to be positioned in the storage posture C1 along the front lateral end of the front tank 5. Alternatively, the marker arm 40 can be placed in the drawing posture C2 where the drawing marker 11 slides on the adjacent farm scene and forms a drawing line.

このようなマーカアーム40の起伏回動は、このマーカアーム40の基端部、またはマーカ軸20を回動することによって行われるが、運転席16側からの遠隔操作によって手動操作で連動する形態としている。前記マーカアーム40のマーカ軸20、及び先端部の線引マーカ11の位置は、この線引マーカ11が隣接圃場面に摺接して線引する状態において、整地部材10の代掻作用位置よりも後側位置になるように設定して、整地部材10による泥押跡の圃場面に線引して、この線引ラインがこの整地部材10の泥押によって消され難いように構成している。前記マーカアーム40は、植付フレーム28等との間にスプリング43、44を設けて回動付勢され、線引マーカ11の不使用時の収納固定姿勢C3は、植付フレーム28との間のフック45による係合によって維持される。   Such up-and-down rotation of the marker arm 40 is performed by rotating the proximal end portion of the marker arm 40 or the marker shaft 20, and is interlocked by manual operation by remote operation from the driver's seat 16 side. It is said. The marker shaft 20 of the marker arm 40 and the position of the drawing marker 11 at the tip are more than the cutting action position of the leveling member 10 when the drawing marker 11 is drawn in sliding contact with the adjacent farm scene. It sets so that it may become a rear side position, it draws in the field scene of the mud pushing trace by the leveling member 10, and it is comprised so that this drawing line cannot be easily erased by mud pushing of the leveling member 10. The marker arm 40 is rotationally biased by providing springs 43 and 44 between the planting frame 28 and the like, and the storage and fixing posture C3 when the drawing marker 11 is not used is between the planting frame 28 and the like. Is maintained by the engagement of the hook 45.

前記線引マーカ11のマーカアーム40と、代掻体4の横端部との間はワイヤー50で連結して、前記操作レバー36、又は切替シリンダ13の作動によって、整地部材10が左向き姿勢L、又は右向き姿勢Rに切替えると、この整地部材10の両端部と、これに対応する側の線引マーカ11のマーカアーム40との間を連結するワイヤー50を介して起伏回動されて、整地部材10を回動させた側の線引マーカ11を線引姿勢C2とし、これと反対側の線引マーカ11を収納姿勢C1として切替える。   The marker arm 40 of the drawing marker 11 and the lateral end of the scraper 4 are connected by a wire 50, and the leveling member 10 is moved to the left posture L by the operation of the operation lever 36 or the switching cylinder 13. Or when switching to the right-facing posture R, the ground leveling member 10 is swung up and down via the wire 50 connecting the both ends of the leveling member 10 and the marker arm 40 of the drawing marker 11 on the side corresponding thereto. The drawing marker 11 on the side on which the member 10 is rotated is switched to the drawing posture C2, and the drawing marker 11 on the opposite side is switched to the storage posture C1.

前記苗移植機は、植付走行行程の終端部では、畦際においてオートリフトターン制御を可能に構成している。コントローラ35の入力側に、ステアリングハンドル12の切り角を検出するポテンショメータ46等からなるハンドル切角センサを設け、又、後輪2の回転数を検出する後輪回転センサ47を設けている。植付走行の往行程から復行程へ折返えす操向旋回行程で、ステアリングハンドル12の切角が所定以上に大きくなると、リフトシリンダ8の油圧回路の切替制御弁38が上げ位置に切替えられて、このリフトシリンダ8によって苗植付部7が一旦上昇されて、植付クラッチ47が切りになって植付作業を停止すると共に、苗移植機の操向旋回が行われる。この操向旋回が終って、後輪回転センサ48の検出により、往行程に沿う植付走行姿勢になると、前記リフトシリンダ8によって苗植付部7が植付位置に下降されて、復行程の植付作業が開始される。   The seedling transplanter is configured to enable auto lift turn control at the end of planting travel. On the input side of the controller 35, a steering wheel angle sensor comprising a potentiometer 46 and the like for detecting the steering angle of the steering wheel 12 and a rear wheel rotation sensor 47 for detecting the rotation speed of the rear wheel 2 are provided. When the turning angle of the steering handle 12 becomes larger than a predetermined angle in the steering turning stroke that returns from the forward stroke to the backward stroke of the planting travel, the switching control valve 38 of the hydraulic circuit of the lift cylinder 8 is switched to the raised position, The lift cylinder 8 raises the seedling planting portion 7 once, the planting clutch 47 is cut off to stop the planting operation, and the seedling transplanter is steered. When the steering turning is finished and the rear wheel rotation sensor 48 detects the planting traveling posture along the forward travel, the lift cylinder 8 lowers the seedling planting portion 7 to the planting position, Planting work begins.

このようなオートリフトターン制御は、手動、自動の切替スイッチ50を設けて、切替選択可能に構成しておき、この切替スイッチ50をリフトターン制御させるときは、ステアリングハンドル12の操作により、図7のフローチャートのように、ポテンショメータ46によって旋回方向と旋回角を検出して(ステップS1)、操向旋回が行われ(S2)、旋回が完了すると(S3)、前記苗植付部7を昇降するリフトシリンダ8の伸縮作動によって、前記切替シリンダ13の伸縮方向を切替える切替装置51と、これによってソレノイド出力するマーカ切替ソレノイド52を経て、前記切替シリンダ13を伸、縮作動させる(S4)。このとき、切替シリンダ13は単一であるから整地部材10は整地支持軸14の周りにシーソ形態に交互回動して、左向き姿勢Lに作動されたり、又は右向き姿勢Rに作動される(S5)。   Such an automatic lift turn control is provided with a manual / automatic changeover switch 50 so that the changeover can be selected. When the changeover switch 50 is lifted turn controlled, the steering handle 12 is operated to operate as shown in FIG. As shown in the flowchart, the turning direction and the turning angle are detected by the potentiometer 46 (step S1), the steering turning is performed (S2), and when the turning is completed (S3), the seedling planting unit 7 is moved up and down. The switching cylinder 13 is extended and contracted via the switching device 51 that switches the extending / contracting direction of the switching cylinder 13 and the marker switching solenoid 52 that outputs the solenoid by the extending / contracting operation of the lift cylinder 8 (S4). At this time, since the switching cylinder 13 is single, the leveling member 10 is alternately rotated in a seesaw shape around the leveling support shaft 14 and is operated in the left-facing posture L or is operated in the right-facing posture R (S5). ).

ここにおいて、この植付整地装置は、前記苗植付部7のフロート4の前方部に、後輪2トレッド幅間の圃場面を掻き均す整地部材10を、走行方向Fに対して前方左向きLと、前方右側向きRとの斜め方向姿勢に切替操作可能に構成する。   Here, in the planting leveling device, the leveling member 10 that scrapes the field scene between the tread widths of the rear wheels 2 on the front part of the float 4 of the seedling planting part 7 is left frontward with respect to the traveling direction F. It is configured to be switchable to an oblique posture between L and the front rightward direction R.

苗移植機による植付作業は、走行車体3の走行によって、後部の苗植付部7のフロート4が圃場面を滑走均平してこの苗植付部7自体の重量の一部を支持しながら、このフロート4によって均平した圃場面に植付装置6が植付作動して、苗タンク5から分離した苗を一定の深さに植付ける。このように各フロート4によって均平する圃場面は、このフロート4の前方部に配置の整地部材10によって掻き均らされるもので、大きい土塊や、凹凸圃場面等があるときは、この代掻体10によって予め破砕し、掻き均らされて、後続のフロート4による均平が行われ易い状態とする。このような整地部材10は、この整地部材10の向きを走行車体3の走行方向Fに対して前方左側向きL、または右側向きRの斜め方向姿勢になるように、即ち、この整地部材10の幅方向に沿う整地部材線Aの向きを、走行方向Fから左側向きL、又は右側向きRに切替えて、植付作業形態に対応することができ、植付作業時は、この整地部材10の向きを隣接の既植付条とは反対の方向へ対向するように切替操作して、この整地部材10による泥押、水押等の弊害を回避できる。   In the planting operation by the seedling transplanter, the float 4 of the rear seedling planting portion 7 slides and leveles the field scene by the traveling vehicle body 3 to support a part of the weight of the seedling planting portion 7 itself. On the other hand, the planting device 6 is planted and operated in the farmland leveled by the float 4, and the seedling separated from the seedling tank 5 is planted at a certain depth. Thus, the farm scene leveled by each float 4 is scraped and leveled by the leveling member 10 arranged in front of the float 4. The material is crushed in advance by the scraper 10 and scraped and smoothed so that leveling by the subsequent float 4 can be easily performed. Such a leveling member 10 is arranged so that the leveling member 10 is oriented in a slanting orientation of the left side front direction L or the right side direction R with respect to the traveling direction F of the traveling vehicle body 3, that is, The direction of the leveling member line A along the width direction can be switched from the traveling direction F to the leftward direction L or the rightward direction R to correspond to the planting work mode. By switching the direction so as to face the direction opposite to the adjacent planted strip, adverse effects such as mud pushing and water pushing by the leveling member 10 can be avoided.

この整地部材10によって代掻される圃場面は土塊があっても破砕され、また凹凸面があっても略平坦に掻き均されて、これら代掻作用によって掻寄せられる土壌や、泥土、泥水等の一部が、この整地部材10の整地部材方向に沿って案内されて、隣接の既植付苗条側とは反対側へ掻き寄せられる。そして、この整地部材10によって掻き均らされた直後の圃場面跡に、各フロート4が滑走均平して植付装置6による植付が行われる。   The field scene scratched by the leveling member 10 is crushed even if there is a lump, and even if there is an uneven surface, it is leveled evenly, and the soil that is scraped by the scraping action, mud, mud, etc. A part of is guided along the leveling member direction of the leveling member 10 and raked toward the side opposite to the adjacent already planted shoot side. Then, each float 4 is slid and leveled on the field scene mark immediately after being leveled by the leveling member 10, and planting by the planting device 6 is performed.

また、苗移植機の走行による植付作用行程の折返変更等によって、隣接の既植付苗条位置が左、右に変ったときは、前記整地部材10の整地部材方向線Aの向きを切替る。この掻寄板10の左、右側向きL、Rの切替えは、走行車体3の運転席16に搭乗の運転者が操作レバー36による手動操作で切替えることができるが、ステアリングハンドル12による植付走行方向の旋回操向と連動して、切替連動操作することにより自動的に切替できる形態とすることもできる。   Further, when the adjacent planted shoot position is changed to the left or right due to the turning change of the planting action process by traveling of the seedling transplanter, the direction of the leveling member direction line A of the leveling member 10 is switched. . The left and right facing L and R of the scraping plate 10 can be switched by a driver who is in the driver's seat 16 of the traveling vehicle body 3 by manual operation using the operation lever 36. It can also be set as the form which can be switched automatically by interlocking with the turning steering of a direction, and switching interlocking operation.

また、前記整地部材10の左、右斜め方向姿勢の切替を、植付走行時に苗植付部7横側の隣接圃場面に突出して線引きする線引マーカ11の切替と連動可能に構成して、前記整地部材10をこの線引マーカ11の線引位置側へ斜め方向姿勢に切替る形態とする。   Further, the switching of the left and right oblique postures of the leveling member 10 is configured so as to be interlocked with the switching of the drawing marker 11 that projects to the adjacent farm scene on the side of the seedling planting unit 7 during planting traveling. The leveling member 10 is switched to the oblique orientation toward the drawing position of the drawing marker 11.

前記のように整地部材10の代掻き体線Aの傾斜向きは、植付走行形態に応じて圃場の畦際等での折返旋回行程で、左側向きL、又は右側向きRの斜め方向姿勢に切替えるものであるが、この整地部材10の斜め方向姿勢の切替えは、線引マーカ11が連動構成されている形態では、この線引マーカ11の線引位置側へ向けて傾斜するように同時連動される。線引マーカ11の作用位置は、隣接既植付条側とは反対側の圃場面位置、即ち、次行程において植付される圃場面位置となるものであるから、この整地部材10の整地部材方向線Aの斜め方向と一致して、同調連動して切替えることができる。   As described above, the inclination direction of the scraping body line A of the leveling member 10 is switched to a leftward-facing L or a rightward-facing R oblique posture in a turn-around turning process at the edge of a farm field or the like according to the planting traveling mode. However, in the form in which the drawing marker 11 is interlocked, the switching of the oblique direction posture of the leveling member 10 is simultaneously interlocked so as to incline toward the drawing position of the drawing marker 11. The Since the action position of the drawing marker 11 is the field scene position opposite to the adjacent planted strip side, that is, the field scene position planted in the next stroke, the leveling member of the leveling member 10 In accordance with the oblique direction of the direction line A, switching can be performed in synchronization with the direction line A.

また、前記苗植付部7は、走行車体3のステアリングハンドル12の操向旋回と連動してリフトシリンダ8の伸縮により上方位置の非植付姿勢と下方圃場面位置の植付姿勢とに昇降するリフトターン制御可能の形態とすると共に、前記整地部材10は、切替シリンダ13の伸縮によって苗植付部7の整地支持軸14周りに揺動可能に構成し、このリフトターン制御時には、前記整地部材10を操向旋回の外側位置に向けて掻き寄せるように斜め方向姿勢に切替連動する形態とする。   In addition, the seedling planting section 7 moves up and down to a non-planting posture in the upper position and a planting posture in the lower farm scene position by expansion and contraction of the lift cylinder 8 in conjunction with the steering turning of the steering handle 12 of the traveling vehicle body 3. The leveling member 10 is configured to be swingable around the leveling support shaft 14 of the seedling planting portion 7 by expansion and contraction of the switching cylinder 13, and during the lift turn control, The member 10 is configured to be switched and interlocked with the oblique posture so as to scrape toward the outer position of the steering turn.

苗移植機の植付走行Fの終端部において折返操向旋回するときは、ステアリングハンドル12を操向旋回位置に切り操作することによって、リフトシリンダ8によって苗植付部7を植付姿勢位置から上方の非植付姿勢位置へ上昇しながら、走行車体3の操向を旋回して折返方向へ向わせる。このとき、切替シリンダ13の伸縮によって整地支持軸14の周りに整地部材10が揺動されて、この整地部材線Aの傾斜を操向旋回の外側へ向けるように切替連動する。そして、苗移植機走行車体3の操向旋回後は、ステアリングハンドル12が直進操向状態に戻ると共に、非植付姿勢位置に上昇していた苗植付部7が下降して、各フロート4も圃場面に滑走して均平する姿勢となり植付作業を開始することができる。   When turning back and turning at the end portion of the planting travel F of the seedling transplanter, the lifter cylinder 8 moves the seedling planting portion 7 from the planting posture position by turning the steering handle 12 to the steering turning position. While raising to the upper non-planting posture position, the steering of the traveling vehicle body 3 is turned to turn in the turning direction. At this time, the leveling member 10 is swung around the leveling support shaft 14 by the expansion and contraction of the switching cylinder 13, and the leveling member line A is switched and interlocked so that the inclination of the leveling member line A is directed to the outside of the steering turn. Then, after the steering turn of the seedling transplanter traveling vehicle body 3, the steering handle 12 returns to the straight steering state, and the seedling planting portion 7 that has been raised to the non-planting posture position is lowered so that each float 4 Also, the planting can be started by planting on the farmland.

更には、前記整地部材10は、上端縁をフロート4の前端上縁よりも低位に設定して代掻きする。
前記のように代掻体10は、フロート4の前方位置にあって、このフロート4で滑走均平する圃場面を代掻きして、破砕しながら、掻き均すものであるが、この整地部材10は、上端縁をフロート4の前端上縁よりも低位に設定されているため、整地部材10が圃場面下に潜り易状態となって、特に軟弱な泥土や、深い水深下の圃場面等の条件では、この潜行推進する整地部材10の上端面を越えて直後側のフロート4側へ越流する泥土や水流の量を多くして、整地部材方向線Aの平面方向傾斜に沿って横端側へ押出す泥押しや水押しを軽減することができる。
Further, the leveling member 10 sets the upper end edge lower than the upper edge of the front end of the float 4 for scraping.
As described above, the scraping body 10 is located in front of the float 4 and scrapes and smoothes the field scene that is slid and leveled by the float 4. Since the upper edge is set lower than the upper edge of the front end of the float 4, the leveling member 10 becomes easy to dive under the field scene, particularly in soft mud soil, a field scene under a deep water depth, etc. Under the conditions, the amount of mud and water flowing over the upper end surface of the leveling member 10 to be submerged and flowing to the float 4 side immediately afterward is increased, and the horizontal end along the plane direction inclination of the leveling member direction line A is increased. Mud pushing and water pushing to the side can be reduced.

また、フロート4の前端縁を整地部材10の上端縁よりも上位に設定されているため、フロート4の上面に飛散、乃至掬い上げる泥土を少なくすることができ、フロート4と整地部材10との設定高低差を少くして、苗植付部7の昇降操作等の行い易形態とすることができ、苗植付部7の上下揺動を軽減し、安定した植付作業を行う。   Further, since the front edge of the float 4 is set higher than the upper edge of the leveling member 10, it is possible to reduce scattering or scooping up mud soil on the upper surface of the float 4. By reducing the set height difference, it is possible to make the seedling planting part 7 easy to perform raising and lowering operations, etc., reducing the vertical swing of the seedling planting part 7 and performing stable planting work.

次に、主として図8、図9に基づいて、前記苗移植機の走行車体3の後輪2をシリンダ56の伸縮によって上下動して、車高を変更可能にする。後輪2の車軸57を軸装する左右両側部のリヤアクスルハウジング58間をアクスルフレーム59で連結する。走行車体3の後下部には、左右一対の揺動アーム60を枢支61して、この揺動アーム60の後端部間に上下動フレーム62を設け、この上下動フレーム62の両側部には平行状のガイドロッド63、64を上下摺動自在に嵌合させて、スリング65を介して弾発支持している。   Next, mainly based on FIGS. 8 and 9, the rear wheel 2 of the traveling vehicle body 3 of the seedling transplanter is moved up and down by the expansion and contraction of the cylinder 56 so that the vehicle height can be changed. An axle frame 59 connects the rear axle housings 58 on the left and right side portions for mounting the axle 57 of the rear wheel 2. A pair of left and right swing arms 60 are pivotally supported 61 at the lower rear portion of the traveling vehicle body 3, and a vertical motion frame 62 is provided between the rear ends of the swing arm 60. Is fitted with parallel guide rods 63 and 64 so as to be slidable in the vertical direction, and is elastically supported through a sling 65.

前記ガイドロッド63、64は、上側のリヤフレーム18のガイドシリンダ66に上下摺動自在に嵌合させて、一側のガイドシリンダ66内部には前記シリンダ56を設けて、油圧回路やホース67等を経て供給される油圧力によって伸縮される。このシリンダ56の伸縮によって上下動フレーム62が上下に移動される。前記揺動アーム60の後端には係合ピン68を有し、この係合ピン68を上下動フレーム62横端に一体のブラケットの長穴69に嵌合させて案内支持し、前記上下動フレーム62が垂直状に上下動するように維持させる。   The guide rods 63 and 64 are fitted to the guide cylinder 66 of the upper rear frame 18 so as to be slidable up and down. The cylinder 56 is provided inside the guide cylinder 66 on one side, and a hydraulic circuit, a hose 67, etc. It is expanded and contracted by the oil pressure supplied via The vertical movement frame 62 is moved up and down by the expansion and contraction of the cylinder 56. An engagement pin 68 is provided at the rear end of the swing arm 60, and the engagement pin 68 is fitted to and supported by an elongated hole 69 of an integral bracket at the lateral end of the vertical movement frame 62, thereby moving the vertical movement. The frame 62 is maintained to move up and down vertically.

このように走行車体3側に上下動可能に構成した上下動フレーム62に対して、前記後輪2側のアクスルフレーム59を取付ける。この上下動フレーム62の幅方向中央部にはローリング軸70を設け、このローリング軸70に上下動フレーム62中央部の軸穴を嵌合させて、ローリング回動自在にして装着する。   The axle frame 59 on the rear wheel 2 side is attached to the vertically moving frame 62 configured to be movable up and down on the traveling vehicle body 3 side. A rolling shaft 70 is provided at the center of the vertical movement frame 62 in the width direction, and a shaft hole at the center of the vertical movement frame 62 is fitted to the rolling shaft 70 so that the rolling movement is possible.

シリンダ56の伸縮によって後輪2を走行車体3に対して昇降させて、走行車体3後部の車高を調節するため、後方の苗植付部7のフロート4の接地圧状況や、これらの間の代掻体10の圃場面に対する代掻作用深さを調節しながら、正確な代掻植付作業を行い易くすることができる。   In order to raise and lower the rear wheel 2 with respect to the traveling vehicle body 3 by the expansion and contraction of the cylinder 56 and adjust the vehicle height at the rear of the traveling vehicle body 3, the ground pressure state of the float 4 of the rear seedling planting part 7, It is possible to make it easy to perform an accurate planting operation while adjusting the depth of the machining for the field scene of the machined body 10.

1 前輪
2 後輪
3 走行車体
4 フロート
5 苗タンク
6 植付装置
7 苗植付部
8 リフトシリンダ
9 リフトリンク
10 整地部材
11 線引マーカ
12 ステアリングハンドル(操舵部材)
13 切替シリンダ
14 整地支持軸
A 整地部材線
F 走行方向
L 左側向き姿勢(左向き傾斜姿勢)
R 右側向き姿勢(右向き傾斜姿勢)
DESCRIPTION OF SYMBOLS 1 Front wheel 2 Rear wheel 3 Traveling vehicle body 4 Float 5 Seedling tank 6 Planting device 7 Seedling planting part 8 Lift cylinder 9 Lift link 10 Leveling member 11 Drawing marker 12 Steering handle (steering member)
13 Switching cylinder 14 Leveling support shaft A A Leveling member line F Traveling direction L Left-facing posture (left-tilting posture)
R Right-facing posture (right-tilting posture)

Claims (4)

圃場面を滑走均平するフロート(4)と、マット苗を収容して繰出す苗タンク(5)と、該苗タンク(5)から苗を取って圃場に植え付ける植付装置(6)から構成される苗植付部(7)を、左右の前輪(1,1)と後輪(2,2)を備える走行車体(3)の後部にリフトリンク(9)を介して昇降可能に設けた苗移植機において、
前記フロート(4)の前部に、前記左右の後輪(2,2)の左右間の圃場面を均す整地部材(10)を設け、該整地部材(10)を走行方向(F)を基準として前方左側(L)、または前方右側(R)の傾斜姿勢に切替可能に構成したことを特徴とする苗移植機。
Consists of a float (4) for leveling the field scene, a seedling tank (5) for receiving and feeding matted seedlings, and a planting device (6) for taking seedlings from the seedling tank (5) and planting them in the field The seedling planting portion (7) to be lifted up and down via the lift link (9) is provided at the rear portion of the traveling vehicle body (3) including the left and right front wheels (1, 1) and the rear wheels (2, 2). In the seedling transplanter,
A leveling member (10) for leveling the field between the left and right rear wheels (2, 2) is provided at the front of the float (4), and the leveling member (10) is moved in the traveling direction (F). A seedling transplanter configured to be switchable to a tilted posture of the front left side (L) or the front right side (R) as a reference.
前記整地部材(10)の左または右傾斜姿勢の切替を、苗の植付走行時に苗植付部(7)の側方の圃場面に突出して線引きする線引マーカ(11)の切替と連動する構成とし、前記整地部材(10)を該線引マーカ(11)の線引き側に傾斜させる構成としたことを特徴とする請求項1に記載の苗移植機。   The switching of the left or right inclined posture of the leveling member (10) is interlocked with the switching of a drawing marker (11) that projects and draws a field scene on the side of the seedling planting part (7) during seedling planting traveling. The seedling transplanter according to claim 1, wherein the leveling member (10) is inclined toward the drawing side of the drawing marker (11). 前記苗植付部(7)は、走行車体(3)の操舵部材(12)の旋回操作に連動して上昇して非植付形態になると共に、旋回終了操作に連動して下降して圃場に苗を植え付ける植付形態になる旋回連動制御機構を有すると共に、
前記整地部材(10)は、切替アクチュエータ(13)の伸縮によって苗虚け部(7)の整地支持軸(14)周りに揺動する構成とし、前記旋回連動制御時には、前記整地部材(10)を旋回方向の外側位置に向けて斜め方向姿勢となるように切替連動する構成としたことを特徴とする請求項1または2に記載の苗移植機。
The seedling planting part (7) rises in conjunction with the turning operation of the steering member (12) of the traveling vehicle body (3) to become a non-planting form, and descends in conjunction with the turning end operation to While having a swivel interlocking control mechanism that becomes a planting form to plant seedlings in
The leveling member (10) is configured to swing around the leveling support shaft (14) of the lost seedling part (7) by expansion and contraction of the switching actuator (13). The seedling transplanting machine according to claim 1, wherein the seedling transplanter is configured to be interlocked to be switched so as to be in an oblique orientation toward an outer position in a turning direction.
前記整地部材(10)は、上端部を前記フロート(4)の前端上部よりも低位に設定する構成としたことを特徴とする請求項1から3の何れか1項に記載の苗移植機。   The seedling transplanter according to any one of claims 1 to 3, wherein the leveling member (10) has a configuration in which an upper end portion is set lower than an upper front end portion of the float (4).
JP2012145729A 2012-06-28 2012-06-28 Seedling transplanter Pending JP2014007976A (en)

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