JP2021100399A - Transplanter - Google Patents

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JP2021100399A
JP2021100399A JP2019232942A JP2019232942A JP2021100399A JP 2021100399 A JP2021100399 A JP 2021100399A JP 2019232942 A JP2019232942 A JP 2019232942A JP 2019232942 A JP2019232942 A JP 2019232942A JP 2021100399 A JP2021100399 A JP 2021100399A
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planting
vehicle body
suppression
pressing
seedlings
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JP7136074B2 (en
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村並 昌実
Masami Muranami
村並  昌実
暢宏 山根
Nobuhiro Yamane
暢宏 山根
幸太 東
Kota Azuma
幸太 東
昭雄 田▲崎▼
Akio Tazaki
昭雄 田▲崎▼
大久保 嘉彦
Yoshihiko Okubo
大久保  嘉彦
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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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Abstract

To provide a transplanter which is arranged in a position in which a pressing mechanism can secure rigidity for withstanding a load, being a position in which the transplanter hardly contacts with the ground surface at accommodation.SOLUTION: In the transplanter having a plurality of planting devices 41a, 41b, 41c and 41d for planting seedlings in a farm field, and soil packing devices 100a, 100b, 100c and 100d for soil-packing soils around the seedlings planted by the plurality of plaiting devices 41a, 41b, 41c and 41d at a vehicle body 10, a boarding-on/off auxiliary member 26 for assisting the boarding-on/off of a worker is arranged at the vehicle body 10, a pressing device 25 for pressing farm field faces of planting positions of the seedlings planted by the planting devices 41a, 41b, 41c and 41d is arranged at the boarding-on/off auxiliary member 26, and the pressing device 25 is arranged in a space part which is formed at a lower part of the vehicle body 10.SELECTED DRAWING: Figure 4

Description

本発明は、圃場に形成された畝上に苗を移植する移植機に関する。 The present invention relates to a transplanting machine for transplanting seedlings onto ridges formed in a field.

複数の植付条に各々対応する植付ホッパを有する植付機構と、植付ホッパによる苗の植付位置の畝面を押圧して凹凸を均す押圧機構を備えた移植機が知られている(特許文献1参照)。 A transplanting machine equipped with a planting mechanism having a planting hopper corresponding to each of a plurality of planting rows and a pressing mechanism for pressing the ridge surface of the seedling planting position by the planting hopper to smooth out the unevenness is known. (See Patent Document 1).

特開2015− 89343号公報Japanese Unexamined Patent Publication No. 2015-89343

上記の移植機に関しては、車体のフレームに装着される二本の回動リンクアームの端部側に押圧ローラを回転自在に設けており、石等に接触したときには回動リンクアームの上方回動により負荷による破損を防止し、圃場の高さが変化したときには上下回動により畝面から離間せず押圧可能な押圧機構を有している。 Regarding the above-mentioned transplant machine, a pressing roller is rotatably provided on the end side of two rotating link arms mounted on the frame of the vehicle body, and when it comes into contact with a stone or the like, the rotating link arm rotates upward. This prevents damage due to load, and has a pressing mechanism that can be pressed without being separated from the ridge surface by rotating up and down when the height of the field changes.

しかしながら、二本の回動リンクアームを組み合わせて押圧ローラを支持していることにより、フレームの強度を活かせず、負荷のかかり方によっては押圧機構が破損するおそれがある。 However, since the pressing roller is supported by combining the two rotating link arms, the strength of the frame cannot be utilized, and the pressing mechanism may be damaged depending on how the load is applied.

また、収納時には押圧ローラが前輪の車軸の後側付近に位置すると共に、圃場面から離間させているが、地面との上下間隔が小さく、移動する場所しだいでは押圧ローラが地面に接触して破損する問題がある。 In addition, when stored, the pressing roller is located near the rear side of the axle of the front wheel and is separated from the field scene, but the vertical distance from the ground is small, and the pressing roller comes into contact with the ground and is damaged depending on where it moves. There is a problem to do.

本発明は、上記の課題を克服すべく、押圧機構が負荷に耐え得る強度を確保し得る位置で、且つ収納時に地面と接触しにくい位置に配置される移植機を提供することを目的とする。 An object of the present invention is to provide a transplanting machine which is arranged at a position where a pressing mechanism can secure a strength capable of withstanding a load and at a position where it is difficult to come into contact with the ground during storage in order to overcome the above problems. ..

請求項1の発明は、車体(10)に苗を圃場に植え付ける複数の植付装置(41a,41b,41c,41d)と、該複数の植付装置(41a,41b,41c,41d)が植え付けた苗の周囲の土を各々鎮圧する鎮圧装置(100a,100b,100c,100d)を設けた移植機において、前記車体(10)に作業者の乗り降りを補助する乗り降り補助部材(26)を設け、該乗り降り補助部材(26)に前記植付装置(41a,41b,41c,41d)による苗の植付位置の圃場面を押圧する押圧装置(25)を設け、該押圧装置(25)は、前記車体(10)の下部に形成される空間部に配置されることを特徴とする移植機である。 According to the first aspect of the present invention, a plurality of planting devices (41a, 41b, 41c, 41d) for planting seedlings in a field on a vehicle body (10) and the plurality of planting devices (41a, 41b, 41c, 41d) are used for planting. In a transplant machine provided with a suppression device (100a, 100b, 100c, 100d) for suppressing the soil around the seedlings, the vehicle body (10) is provided with a boarding / alighting assisting member (26) to assist the worker in getting on / off. The boarding / alighting assisting member (26) is provided with a pressing device (25) for pressing the field scene at the seedling planting position by the planting device (41a, 41b, 41c, 41d), and the pressing device (25) is said to be the above. It is a transplant machine characterized in that it is arranged in a space formed in the lower part of the vehicle body (10).

請求項2の発明は、前記車体(10)の機体前側にバンパー(24)を設け、前側の左右両側には転輪(11)を各々設け、該左右の転輪(11)の後部には走行輪(12)に伝動する走行伝動ケース(21)を各々設け、該左右の走行伝動ケース(21)のうち少なくとも一方に左右位置を変更させる車輪間調節機構を設け、前記押圧装置(25)は、乗り降り補助部材(26)に回動自在に装着する押圧アーム(27)と、該押圧アーム(27)に回転可能に装着される押圧ローラ(28)で構成し、該押圧ローラ(28)は、前記バンパー(24)と車輪間調節機構の前後の空間部に配置されると共に、側面視で前記転輪(11)と重複する位置に配置される構成としたことを特徴とする請求項1に記載の移植機である。 According to the second aspect of the present invention, bumpers (24) are provided on the front side of the vehicle body (10), wheels (11) are provided on both left and right sides on the front side, and wheels (11) are provided on the rear portions of the left and right wheels (11). A traveling transmission case (21) for transmitting power to the traveling wheels (12) is provided, and at least one of the left and right traveling transmission cases (21) is provided with an inter-wheel adjustment mechanism for changing the left-right position. Consists of a pressing arm (27) rotatably attached to the boarding / alighting assisting member (26) and a pressing roller (28) rotatably attached to the pressing arm (27). Is arranged in a space before and after the bumper (24) and the wheel-to-wheel adjustment mechanism, and is arranged at a position overlapping the rolling wheels (11) in a side view. The transplanting machine according to 1.

請求項3の発明は、前記植付装置(41a,41b,41c,41d)は、車体(10)の左右一側に苗を植え付ける左右一側植付装置(41a,41b)と、車体(10)の左右他側に苗を植え付ける左右他側植付装置(41c,41d)で構成し、前記押圧装置(25)は、前記車体(10)の機体前側の左右に間隔を空けて各々設け、前記車体(10)の移動を規制する接地状態と、移動を規制しない収納状態に切替可能なスタンド(30)を設け、該スタンド(30)は、収納状態では前記左右の押圧装置(25,25)の左右間隔部に位置することを特徴とする請求項1または2に記載の移植機である。 According to the third aspect of the present invention, the planting device (41a, 41b, 41c, 41d) includes a left and right one-sided planting device (41a, 41b) for planting seedlings on one left and right side of the vehicle body (10) and a vehicle body (10). ), The left and right other side planting devices (41c, 41d) for planting seedlings are provided, and the pressing device (25) is provided on the left and right sides of the front side of the vehicle body (10) at intervals. A stand (30) that can be switched between a grounding state that regulates the movement of the vehicle body (10) and a stored state that does not restrict the movement is provided, and the stand (30) is the left and right pressing devices (25, 25) in the stored state. The transplanting machine according to claim 1 or 2, wherein the transplanting machine is located at the left-right spacing portion of).

請求項4の発明は、前記スタンド(30)は、前記左右の押圧装置(25)の左右間に回動可能に設ける回動ステー(31)に、スタンドロッド(32)を機体後方に向けて装着すると共に、前記左右の押圧装置(25)よりも機体後側位置で該スタンドロッド(32)の後部に接地体(33)を設けて構成し、前記回動ステー(31)には、作業者が把持して回動操作する切欠孔(31a)を形成したことを特徴とする請求項3に記載の移植機である。 According to the invention of claim 4, the stand (30) has a stand rod (32) directed to the rear of the machine body on a rotating stay (31) rotatably provided between the left and right of the left and right pressing devices (25). Along with mounting, a grounding body (33) is provided at the rear portion of the stand rod (32) at a position on the rear side of the machine body with respect to the left and right pressing devices (25), and the rotating stay (31) is used for work. The transplanting machine according to claim 3, wherein a notch hole (31a) is formed by a person to grip and rotate the machine.

請求項5の発明は、前記乗り降り補助部材(26)の上部に作業時に作業者が搭乗する搭乗ステップ(34)を設け、該搭乗ステップ(34)に滑り止め部材(51)を設け、前記搭乗ステップ(34)及び滑り止め部材(51)の機体後側で且つ機体外側には、前記車体(10)の機体外側に張り出す延設ステップ(54)を形成することを特徴とする請求項1から4のいずれか1項に記載の移植機である。 According to the fifth aspect of the present invention, a boarding step (34) on which an operator boarded during work is provided on the upper part of the boarding / alighting assisting member (26), and a non-slip member (51) is provided on the boarding step (34). Claim 1 is characterized in that an extension step (54) overhanging the outside of the body of the vehicle body (10) is formed on the rear side of the body of the step (34) and the non-slip member (51) and on the outside of the body. The transplantation machine according to any one of 4 to 4.

請求項6の発明は、前記車体(10)の左右傾斜角度を変更するローリング調節部材(59)を設け、前記車体(10)の後部に操縦ユニット(16)を設け、該操縦ユニット(16)の前側に支持フレーム(17)を設け、該支持フレーム(17)に前記ローリング調節部材(59)を作動させて車体(10)の左右傾斜角度を調節する傾斜調節部材(62)を設けたことを特徴とする請求項1から5のいずれか1項に記載の移植機である。 According to the sixth aspect of the present invention, a rolling adjusting member (59) for changing the left-right tilt angle of the vehicle body (10) is provided, a control unit (16) is provided at the rear portion of the vehicle body (10), and the control unit (16) is provided. A support frame (17) is provided on the front side of the vehicle, and the support frame (17) is provided with an inclination adjustment member (62) for operating the rolling adjustment member (59) to adjust the left-right inclination angle of the vehicle body (10). The transplant machine according to any one of claims 1 to 5, characterized in that.

請求項1の発明により、押圧装置(25)を乗り降り補助部材(26)を介して装着したことにより、作業者の乗り降り荷重に耐え得る強度の高い部分を活用できるので、押圧装置(25)が破損して脱落することが防止される。 According to the invention of claim 1, by mounting the pressing device (25) via the boarding / alighting assisting member (26), it is possible to utilize a high-strength portion that can withstand the boarding / alighting load of the operator, so that the pressing device (25) can be used. It is prevented from being damaged and falling off.

また、押圧装置(25)を車体(10)の下部に形成される空間部に配置することにより、車体(10)の車高が不必要に高くなることを防止できると共に、機体構成を利用して押圧装置(25)を配置できる。 Further, by arranging the pressing device (25) in the space formed in the lower part of the vehicle body (10), it is possible to prevent the vehicle body (10) from becoming unnecessarily high and to utilize the airframe configuration. The pressing device (25) can be arranged.

請求項2の発明により、請求項1の発明の効果に加えて、押圧アーム(27)を回動自在に装着したことにより、押圧ローラ(28)が圃場の凸部を押圧できないときに上方に退避させることができるので、負荷による破損を防止できると共に、圃場の凹部に入り込むことができるので、圃場面の均しが行われない箇所の発生を防止できる。 According to the invention of claim 2, in addition to the effect of the invention of claim 1, the pressing arm (27) is rotatably attached so that the pressing roller (28) can not press the convex portion of the field upward. Since it can be retracted, damage due to a load can be prevented, and since it can enter the recess of the field, it is possible to prevent the occurrence of places where the field scene is not leveled.

また、バンパー(24)と車輪間調節機構の前後に形成される空間部を利用して押圧装置(25)を設けることにより、押圧アーム(27)及び押圧ローラ(28)の回動するスペースを十分に確保できるので、圃場面の押圧がより適切に行える。 Further, by providing the pressing device (25) by utilizing the space formed in front of and behind the bumper (24) and the wheel-to-wheel adjustment mechanism, a space for rotating the pressing arm (27) and the pressing roller (28) can be provided. Since it can be sufficiently secured, the pressing of the field scene can be performed more appropriately.

請求項3の発明により、請求項1または2の発明の効果に加えて、左右の押圧装置(25)を左右方向に間隔を空けて配置することにより、スタンド(30)の収納位置を確保できるので、非作業時の移動中等にスタンド(30)が地面に接触して破損することが防止される。 According to the invention of claim 3, in addition to the effect of the invention of claim 1 or 2, the storage position of the stand (30) can be secured by arranging the left and right pressing devices (25) at intervals in the left-right direction. Therefore, it is possible to prevent the stand (30) from coming into contact with the ground and being damaged during movement during non-working.

請求項4の発明により、請求項3の発明の効果に加えて、スタンド(30)の収納状態において、接地体(33)が左右の押圧装置(25)よりも機体後側に位置することにより、スタンド(30)を使用する際に車体(10)を浮かせて移動を規制する長さを確保することができる。 According to the invention of claim 4, in addition to the effect of the invention of claim 3, the ground contact body (33) is located on the rear side of the machine body with respect to the left and right pressing devices (25) in the retracted state of the stand (30). , When the stand (30) is used, the vehicle body (10) can be floated to secure a length for restricting movement.

また、スタンド(30)の回動ステー(31)に切欠孔(31a)を設けたことにより、作業者は左右の押圧装置(25)の左右の間隔部からスタンド(30)の回動操作を行うことができるので、作業性が向上する。 Further, by providing the notch hole (31a) in the rotating stay (31) of the stand (30), the operator can rotate the stand (30) from the left and right gaps of the left and right pressing devices (25). Since it can be performed, workability is improved.

請求項5の発明により、請求項1から4のいずれか1項の発明の効果に加えて、搭乗ステップ(34)及び滑り止め部材(51)の機体後側で且つ機体外側に延設ステップ(54)を形成したことにより、作業中の作業者は作業しやすい位置に足を置くことができるので、作業者が疲れにくくなると共に、作業能率が向上する。 According to the invention of claim 5, in addition to the effect of the invention of any one of claims 1 to 4, the boarding step (34) and the non-slip member (51) are extended to the rear side of the machine body and to the outside of the machine body ( By forming 54), the worker who is working can put his / her foot in a position where it is easy to work, so that the worker is less likely to get tired and the work efficiency is improved.

請求項6の発明により、請求項1から5のいずれか1項の発明の効果に加えて、操縦ユニット(16)の前側の支持フレーム(17)に傾斜調節部材(62)を設けたことにより、作業前の車体(10)の左右傾斜角度を圃場の傾斜に合わせる際、機体後側から車体(10)と圃場を見ながら左右傾斜角度の調整ができるので、苗の植付姿勢の適切化が図られる。 According to the invention of claim 6, in addition to the effect of the invention of any one of claims 1 to 5, the inclination adjusting member (62) is provided on the support frame (17) on the front side of the control unit (16). When adjusting the left-right tilt angle of the car body (10) before work to the tilt of the field, the left-right tilt angle can be adjusted while looking at the car body (10) and the field from the rear side of the machine, so the planting posture of seedlings is optimized. Is planned.

移植機の左側面図Left side view of the transplant machine 移植機の平面図Top view of the transplanter 移植機の正面図Front view of the transplant machine 移植機の底面図Bottom view of the transplant machine 移植機の斜視図Perspective view of the transplanter 4条の植付ホッパを示す要部正面図Front view of the main part showing the four planting hoppers 植付ホッパを示す要部側面図Side view of the main part showing the planting hopper 4条の植付ホッパを示す要部平面図Top view showing the four planting hoppers 4条の鎮圧装置を示す要部背面図Rear view of the main part showing the suppression device of Article 4 4条の鎮圧装置を示す要部平面図Top view showing the four suppression devices 別構成例の4条の鎮圧装置を示す要部背面図Rear view of the main part showing the suppression device of Article 4 of another configuration example 別構成例の4条の鎮圧装置を示す要部側面図Side view of the main part showing the suppression device of Article 4 of another configuration example 別構成例の4条の鎮圧装置を示す要部平面図Top view showing the suppression device of Article 4 of another configuration example 左右の鎮圧装置の高低差によるローリング機構を示す要部拡大図Enlarged view of the main part showing the rolling mechanism due to the height difference between the left and right suppression devices 左右の鎮圧装置の高低差によるローリング機構を示す要部拡大図Enlarged view of the main part showing the rolling mechanism due to the height difference between the left and right suppression devices 左右の鎮圧装置の高低差によるローリング機構を示す要部模式図Schematic diagram of the main part showing the rolling mechanism due to the height difference between the left and right suppression devices 車体ローリングの手動調節レバーを配置した移植機の左側面図Left side view of the porting machine with the manual adjustment lever for vehicle body rolling 車体ローリングの手動調節レバーを配置した移植機の平面図Top view of the porting machine with the manual adjustment lever for body rolling 車体ローリングを行う手動調節レバーとケーブルの配置を示す要部の模式図Schematic diagram of the main part showing the arrangement of the manual adjustment lever and cable for rolling the vehicle body

以下、図面を参照しながら、本発明における実施の形態について詳細に説明する。本実施の形態は、タマネギやレタス等の作物の苗を植え付ける移植機の一例である。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. This embodiment is an example of a transplanting machine for planting seedlings of crops such as onions and lettuce.

まず、図1から図5を参照しながら、本実施の形態の移植機の構成及び動作について具体的に説明する。 First, the configuration and operation of the porting machine of the present embodiment will be specifically described with reference to FIGS. 1 to 5.

図1から図5においては、4条植えの移植機が示されており、植付機構40は機体左右方向に4個の植付ホッパ41を有する。該植付ホッパ41は、機体左右両外側に設けられる左右の外側植付ホッパ41a,41dと、該左右の外側植付ホッパ41a,41dの左右間に設けられる左右の内側植付ホッパ41b,41cで構成される。 In FIGS. 1 to 5, a four-row planting transplanter is shown, and the planting mechanism 40 has four planting hoppers 41 in the left-right direction of the machine. The planting hoppers 41 are left and right outer planting hoppers 41a and 41d provided on both the left and right outer sides of the machine body, and left and right inner planting hoppers 41b and 41c provided between the left and right outer planting hoppers 41a and 41d. Consists of.

また、車体10の上部には、上記機体左側の内外側の植付ホッパ41a,41bに作業者が投入した苗を搬送して供給する左側の苗供給テーブル42Lと、機体右側の内外側の植付ホッパ41c,41dに苗を搬送して供給する右側の苗供給テーブル42Rを設ける。該左右の苗供給テーブル42L,42Rは、複数の苗収容カップを、機体前後方向を長手方向とする周回状に配置して構成され、後部側が前記左側の内外側の植付ホッパ41a,41b、及び右側の内外側の植付ホッパ41c,41dの上方に臨むと共に、前部側が後述する搭乗ステップ34の機体後側の上方に臨む配置とする。 Further, on the upper part of the vehicle body 10, a seedling supply table 42L on the left side for transporting and supplying seedlings put by a worker to the inner and outer planting hoppers 41a and 41b on the left side of the machine body and planting on the inner and outer sides on the right side of the machine body. A seedling supply table 42R on the right side for transporting and supplying seedlings to the attached hoppers 41c and 41d is provided. The left and right seedling supply tables 42L and 42R are configured by arranging a plurality of seedling storage cups in a circumferential shape with the front-rear direction of the machine as the longitudinal direction, and the rear side is the inner and outer planting hoppers 41a and 41b on the left side. The arrangement is such that the front side faces above the rear side of the boarding step 34, which will be described later, while facing above the inner and outer planting hoppers 41c and 41d on the right side.

本実施の形態の移植機は、車体10の後部に非作業移動時などに作業者が把持する平面視でU字形状のハンドル13を設け、前部で且つ左右の苗供給テーブル42L,42Rの前側で且つ外側方には作業者が搭乗する座席14L,14Rを各々設け、該左右の座席14L,14Rの下方に前記搭乗ステップ34を各々設ける、所謂乗用型の移植機である。 The transplanting machine of the present embodiment is provided with a U-shaped handle 13 in a plan view held by an operator at the rear of the vehicle body 10 during non-working movements, and is provided on the front and left and right seedling supply tables 42L and 42R. It is a so-called passenger-type transplant machine in which seats 14L and 14R on which an operator is boarded are provided on the front side and the outside side, respectively, and the boarding steps 34 are provided below the left and right seats 14L and 14R, respectively.

車体10の前部には、エンジン20などが左右一対の従動前輪11とともに配置されている。エンジン20によって発生された駆動力は、左右一対の走行チェーンケース21を介して左右一対の駆動後輪12などへ伝達される。 At the front of the vehicle body 10, an engine 20 and the like are arranged together with a pair of left and right driven front wheels 11. The driving force generated by the engine 20 is transmitted to the pair of left and right driving rear wheels 12 and the like via the pair of left and right traveling chain cases 21.

前記ハンドル13のU字の内側には、走行や植付の伝動を入切操作するクラッチレバー、車体10の車高を調節する油圧昇降レバー、走行ギアを切り替える変速レバー、緊急停止スイッチ等を備える操作ユニット16を設け、作業者が植付作業前や走行時に操作を行う。 Inside the U-shape of the handle 13, a clutch lever for turning on / off the transmission of traveling and planting, a hydraulic lifting lever for adjusting the vehicle height of the vehicle body 10, a speed change lever for switching the traveling gear, an emergency stop switch, and the like are provided. An operation unit 16 is provided, and an operator performs an operation before the planting work or during traveling.

そして、前記左右の走行チェーンケース21,21のうち、左右どちらか一側を左右方向に摺動可能なスライド軸22により機体左右方向に位置調節自在に設け、該スライド軸22の外周を覆う軸カバー23を車体10の底部側に設ける。そして、該軸カバー23と、該軸カバー23よりも機体前側で車体10の底部側に位置するバンパー24の前後間には、圃場面に接地して凹凸を押圧する前側押圧装置25を左右一対、左右方向に間隔を空けて配置する。 Then, one of the left and right traveling chain cases 21 and 21 is provided with a slide shaft 22 slidable in the left-right direction so as to be adjustable in position in the left-right direction of the machine, and a shaft covering the outer periphery of the slide shaft 22. The cover 23 is provided on the bottom side of the vehicle body 10. Then, between the front and rear of the shaft cover 23 and the bumper 24 located on the bottom side of the vehicle body 10 on the front side of the machine body with respect to the shaft cover 23, a pair of left and right front pressing devices 25 for contacting the field scene and pressing the unevenness are provided. , Place them at intervals in the left-right direction.

そして、前記バンパー24の前側には、作業者が機体前側から乗り降りする際に足を載せる乗り降りステップ26,26を左右方向に間隔を空けて配置し、該左右の乗り降りステップ26,26の下面には、前側押圧アーム27を機体後側に向けて、且つ上下回動自在に配置する。また、該前側押圧アーム27に前側押圧ローラ28を回転自在に装着することで、接地抵抗で回転して圃場面の凹凸を押圧する前記左右の前側押圧装置25,25を構成する。 Then, on the front side of the bumper 24, boarding / alighting steps 26, 26 on which the operator puts his / her feet when getting on / off from the front side of the machine body are arranged at intervals in the left-right direction, and on the lower surfaces of the left and right step 26, 26. Is arranged so that the front pressing arm 27 is directed toward the rear side of the machine body and can be rotated up and down. Further, by rotatably attaching the front pressing roller 28 to the front pressing arm 27, the left and right front pressing devices 25, 25 that rotate by the ground resistance to press the unevenness of the field scene are configured.

前記左右の前側押圧装置25,25は、前側押圧アーム27を上下回動可能に装着したことにより、圃場面の凹凸に合わせて上下位置が変更され、過剰な押圧により畝面に凹みを生じさせることや、畝面から浮いた状態となり、押圧が行われなくなることを防止している。このとき、凹凸を可能な限り押圧すると共に、石等の高い抵抗がかかる場合に前側押圧装置25の破損を防止すべく、前側押圧アーム27と車体10のフレーム10aの前側の間に、図1に示すとおり、スプリングロッド29を回動可能に装着する。 The left and right front pressing devices 25, 25 are mounted so that the front pressing arms 27 can rotate up and down, so that the vertical positions are changed according to the unevenness of the field scene, and excessive pressing causes dents on the ridge surface. In addition, it prevents the ridges from being lifted and pressed. At this time, in order to press the unevenness as much as possible and prevent the front pressing device 25 from being damaged when a high resistance such as a stone is applied, FIG. 1 is formed between the front pressing arm 27 and the front side of the frame 10a of the vehicle body 10. As shown in the above, the spring rod 29 is rotatably mounted.

なお、該スプリングロッド29の回動部は前側押圧アーム27とし、スプリングロッド29の付勢方向は、前側押圧ローラ28を圃場面側に押す方向とする。また、スプリングロッド29は、ワッシャ等の留め位置を変更し、スプリングの圧縮率を増減させることにより、圃場の土質や作業時の環境に適した押圧荷重に調節可能なものとする。 The rotating portion of the spring rod 29 is a front pressing arm 27, and the urging direction of the spring rod 29 is a direction of pushing the front pressing roller 28 toward the field scene. Further, the spring rod 29 can be adjusted to a pressing load suitable for the soil quality of the field and the working environment by changing the fastening position of the washer or the like and increasing or decreasing the compression rate of the spring.

これにより、前側押圧ローラ28はスプリングロッド29の付勢力を受けて圃場面を均すことができるので、負荷があまりかからない圃場面の凹凸を確実に均すことができ、苗の植付精度の向上が図られる。 As a result, the front pressing roller 28 can receive the urging force of the spring rod 29 to level the field scene, so that the unevenness of the field scene where the load is not so much can be surely leveled, and the seedling planting accuracy can be improved. Improvement is planned.

また、前側押圧ローラ28が石等を踏んで、スプリングロッド29の付勢力に抗し得る負荷がかかると、前側押圧アーム27が上方に回動して前側押圧ローラ28が圃場面から一時的に退避するので、過負荷による前側押圧装置25の破損が防止される。 Further, when the front pressing roller 28 steps on a stone or the like and a load capable of resisting the urging force of the spring rod 29 is applied, the front pressing arm 27 rotates upward and the front pressing roller 28 temporarily moves from the field scene. Since it retracts, damage to the front pressing device 25 due to overload is prevented.

なお、上記のスプリングロッド29の付勢力を受けて圃場面側に押される前側押圧ローラ28は、重過ぎると圃場面を凹ませてかえって苗の植付深さを乱すおそれがあるので、ポリ塩化ビニル等の樹脂を中空の円筒形に形成したものとし、重量を抑えたものとすることが望ましい。 If the front pressing roller 28, which is pushed toward the field scene by receiving the urging force of the spring rod 29, may dent the field scene and rather disturb the planting depth of the seedlings, so that it is polychlorinated. It is desirable that a resin such as vinyl is formed into a hollow cylindrical shape to reduce the weight.

また、図3及び図4に示すとおり、前記車体10の機体前側の下面には、圃場面に接地させると車体10の前部を浮き上がらせて走行を規制する、T形状の前側スタンド30を上下回動可能に設け、機体上方に回動させると走行の規制を解除する収納状態となる構成とする。 Further, as shown in FIGS. 3 and 4, on the lower surface of the vehicle body 10 on the front side of the aircraft, a T-shaped front stand 30 that regulates traveling by raising the front portion of the vehicle body 10 when it is brought into contact with the field scene is placed up and down. It is provided so that it can be rotated, and when it is rotated upward of the machine body, it is in a stored state in which the restriction on running is released.

該前側スタンド30は、基部側である回動ステー31を左右の乗り降りステップ26,26の左右の空間部に左右方向に移動可能に設け、スタンドロッド32を機体後側に突出させると共に左右の前側押圧ローラ28,28の左右間の空間部を通過させて配置する。なお、スタンドロッド32の後端部に溶接する接地バー33は、収納状態において、左右の前側押圧ローラ28,28の後部側に位置する構成とする。 The front side stand 30 is provided with a rotating stay 31 on the base side so as to be movable in the left and right directions in the left and right space portions of the left and right getting on and off steps 26 and 26, and the stand rod 32 is projected to the rear side of the machine body and the left and right front sides. The pressing rollers 28, 28 are arranged so as to pass through the space between the left and right sides. The grounding bar 33 to be welded to the rear end of the stand rod 32 is configured to be located on the rear side of the left and right front pressing rollers 28, 28 in the stored state.

なお、前記回動ステー31は、左右どちらか一方の乗り降りステップ26に向けてスプリング等により付勢し、乗り降りステップ26に形成する溝または穴にピン等を接触させ、前側スタンド30の接地状態または収納状態が意図せず切り替わることを防止すると共に、意図して切り替える際には回動ステー31を左右方向に移動させることで切替の規制が解除される構成とする。 The rotating stay 31 is urged by a spring or the like toward either the left or right step 26 of getting on and off, and the pin or the like is brought into contact with the groove or hole formed in the step 26 of getting on and off, so that the front stand 30 is in a grounded state or is in contact with the ground. The storage state is prevented from being unintentionally switched, and when the storage state is intentionally switched, the restriction of switching is released by moving the rotating stay 31 in the left-right direction.

また、前記回動ステー31には、スタンドロッド32の基部側を避ける位置、例えば機体前側に、一または複数の切欠孔31aを形成する。該切欠孔31aは、一般的な作業者が片手を差し込んで掴める程度の前後及び左右幅とした上で、矩形とすることが望ましい。 Further, the rotating stay 31 is formed with one or a plurality of notch holes 31a at a position avoiding the base side of the stand rod 32, for example, on the front side of the machine body. It is desirable that the notch hole 31a has a rectangular shape so that the notch hole 31a has a front-rear and left-right width that can be grasped by a general worker by inserting one hand.

前記前側スタンド30を接地状態と収納状態に切替回動させるときは、作業者が機体前側から切欠孔31aを掴み、回動ステー31を左右方向に移動させて切替の規制状態を解除し、機体上側または下側に回動ステー31を回動させる。そして、前側スタンド30の切替後に回動ステー31を左右どちらか一側の乗り降りステップ26側に移動させる、あるいは作業者が切欠孔31aから手を離して回動ステー31を左右どちらか一側の乗り降りステップ26側に移動させ、前側スタンド30の切替を規制状態とする。 When the front stand 30 is switched between the grounded state and the retracted state, the operator grasps the notch hole 31a from the front side of the machine body and moves the rotating stay 31 in the left-right direction to release the restricted state of switching, and the machine body. The rotating stay 31 is rotated to the upper side or the lower side. Then, after switching the front stand 30, the rotating stay 31 is moved to either the left or right side of the step 26, or the operator releases the notch hole 31a and moves the rotating stay 31 to the left or right side. It is moved to the boarding / alighting step 26 side, and the switching of the front stand 30 is restricted.

これにより、前側スタンド30の接地状態及び収納状態が意図せず切り替わることを防止できるので、作業能率の低下が防止される。 As a result, it is possible to prevent the front stand 30 from being unintentionally switched between the grounded state and the stored state, so that a decrease in work efficiency can be prevented.

また、左右の乗り降りステップ26,26の前側の空間部から手を差し込み、回動ステー31に形成した切欠孔31aを把持して前側スタンド30の操作を行うことができるので、前側スタンド30の切替操作を容易に行うことができる。 Further, since the front stand 30 can be operated by inserting a hand from the space on the front side of the left and right step 26s and 26s and grasping the notch hole 31a formed in the rotating stay 31, the front stand 30 can be switched. The operation can be easily performed.

前記前側押圧装置25の前側押圧ローラ28は、図1に示すとおり、側面視で前記従動前輪11と重複する位置に配置する。また、前記前側スタンド30のスタンドロッド32の前後長さは前側押圧装置25の前後長さよりも長く構成し、接地バー33が前側押圧ローラ28の後端部よりも機体後側に位置する構成とする。 As shown in FIG. 1, the front pressing roller 28 of the front pressing device 25 is arranged at a position overlapping the driven front wheel 11 in a side view. Further, the front-rear length of the stand rod 32 of the front side stand 30 is longer than the front-rear length of the front-side pressing device 25, and the grounding bar 33 is located on the rear side of the machine body with respect to the rear end portion of the front-side pressing roller 28. To do.

前側押圧ローラ28を側面視で従動前輪11と重複する位置に配置したことにより、路上等で走行する際に前側押圧ローラ28を地面からある程度離間させた状態を保つことができるので、前側押圧ローラ28が地面の突起に接触しにくく、破損が防止される。 By arranging the front pressing roller 28 at a position overlapping the driven front wheel 11 in a side view, the front pressing roller 28 can be kept separated from the ground to some extent when traveling on a road or the like, so that the front pressing roller 28 can be kept separated from the ground to some extent. 28 is less likely to come into contact with the protrusions on the ground, preventing damage.

また、接地バー33が左右の前側押圧ローラ28,28の後端部よりも機体後側に位置することにより、収納時に左右の前側押圧ローラ28,28と干渉することを防止できると共に、接地バー33の左右長さが左右の前側押圧ローラ28,28によって制限されないので、接地時に車体10の走行を確実に規制できる構成とすることが可能になる。 Further, since the grounding bar 33 is located on the rear side of the machine body with respect to the rear ends of the left and right front pressing rollers 28, 28, it is possible to prevent interference with the left and right front pressing rollers 28, 28 at the time of storage, and the grounding bar Since the left-right length of the 33 is not limited by the left and right front pressing rollers 28, 28, it is possible to configure the structure so that the traveling of the vehicle body 10 can be reliably regulated when the vehicle touches the ground.

図1から図5に示すとおり、前記乗り降りステップ26,26の後側で且つ機体上部位置には、作業者が車体10に乗り降りする際、及び作業の際に足を載せる搭乗ステップ34を左右各々設ける。該搭乗ステップ34は、金属または硬質樹脂の板体を折り曲げ加工、または鋳造して構成しており、足を載せる部分は基本的に平坦面であるので、作業者の靴の裏に水や土が付着していると若干滑りやすくなる傾向にある。この滑りを防止すべく、搭乗ステップ34には、機体前側から機体外側端部側を覆う、樹脂等で構成する滑り止めステップ51を装着する。 As shown in FIGS. 1 to 5, at the rear side of the boarding / alighting steps 26 and 26 and at the upper position of the machine body, boarding steps 34 on which the operator gets on and off the vehicle body 10 and on which the foot is placed during the work are placed on the left and right respectively. Provide. The boarding step 34 is constructed by bending or casting a metal or hard resin plate, and since the portion on which the foot is placed is basically a flat surface, water or soil is placed on the back of the worker's shoes. If it is attached, it tends to be slightly slippery. In order to prevent this slippage, the boarding step 34 is equipped with a non-slip step 51 made of resin or the like, which covers from the front side of the machine body to the outer end side of the machine body.

該滑り止めステップ51は、図2及び図5に示すとおり、搭乗ステップ34の前側の少なくとも前端面と上面を左右方向に亘って全部、あるいは目安として五分の三以上を覆うと共に、搭乗ステップ34の前側外側端部を経由して側端部とその上面を覆う、平面視L字形状で構成する。また、機体前側と側部の上面には、半球状の突起を前後及び左右方向に所定間隔毎に、あるいはランダムな間隔で形成すると共に、前部と側部の間、即ち角部の上面には、平面視の形状が長方形または正方形の突起を前後及び左右方向に所定間隔毎に、あるいはランダムな間隔で形成し、滑り止め作用を有する構成とする。 As shown in FIGS. 2 and 5, the non-slip step 51 covers at least the front end surface and the upper surface of the boarding step 34 in the left-right direction, or covers three-fifths or more as a guide, and the boarding step 34. It is configured in an L-shape in a plan view, covering the side end portion and its upper surface via the front side outer end portion of the above. In addition, hemispherical protrusions are formed on the front and side surfaces of the machine at predetermined intervals or at random intervals in the front-rear and left-right directions, and between the front and side surfaces, that is, on the upper surface of the corner portion. Is configured to have a non-slip action by forming protrusions having a rectangular or square shape in a plan view in the front-rear and left-right directions at predetermined intervals or at random intervals.

また、前記滑り止めステップ51の配置部分よりも後側には、作業者が作業時に搭乗する左右の作業座席14L,14Rが配置されており、該作業座席14L,14Rの下方位置には、作業者が足を載せる部分がある。この足を載せる部分について、立ち上がるときに靴底の水や土の影響で足が滑ることがあるので、この滑りを防止すべく、金属や樹脂の板の表面に滑り止めの細かい突起を加工形成する、あるいは樹脂繊維を格子状に編み込んで形成する、滑り止めマット52を表面にプラスチックリベット等で固定する。 Further, left and right work seats 14L and 14R on which the worker boarded during work are arranged on the rear side of the arrangement portion of the non-slip step 51, and work is performed at a position below the work seats 14L and 14R. There is a part where the person puts his foot. As for the part on which the foot is placed, the foot may slip due to the influence of water and soil on the sole when standing up, so in order to prevent this slip, fine protrusions to prevent slipping are processed and formed on the surface of the metal or resin plate. The non-slip mat 52, which is formed by knitting resin fibers in a lattice pattern, is fixed to the surface with a plastic rivet or the like.

さらに、前記搭乗ステップ34の機体後側、及び前記滑り止めステップ51の後部側の一部の側方に、搭乗ステップ34の一部を延長する、あるいは別の部材を接続して延設ステップ53を形成する。このとき、前記滑り止めマット52は、この延設ステップ53の一部を覆う形状とし、滑り止めとして作用する面積を拡大するものとする。 Further, a part of the boarding step 34 is extended or another member is connected to the rear side of the aircraft of the boarding step 34 and a part of the rear side of the non-slip step 51 to extend the step 53. To form. At this time, the non-slip mat 52 has a shape that covers a part of the extension step 53, and the area that acts as a non-slip is expanded.

前記延設ステップ53を形成したことにより、作業者は乗り降り、あるいは作業の際に足を載せられる、あるいは移動させられる範囲が広くなるので、乗り降りがスムーズに行えて作業能率が向上すると共に、作業者が作業しやすい姿勢で車体10に搭乗でき、作業者の疲労の軽減に繋がる。 By forming the extension step 53, the operator can get on and off, or the range on which the foot can be placed or moved during the work is widened, so that the worker can get on and off smoothly, the work efficiency is improved, and the work is performed. The vehicle body 10 can be boarded in a posture that makes it easy for the operator to work, which leads to reduction of the operator's fatigue.

また、延設ステップ53と搭乗ステップ34の間に滑り止めステップ51が位置すると共に、滑り止めマット52の一部が延設ステップ53の一部を覆うことにより、移動時に作業者の足の一部が滑り止めに触れやすくなるので、乗り降りや作業の際に足を滑らせることが防止され、作業能率の低下が防止される。 Further, the non-slip step 51 is located between the extension step 53 and the boarding step 34, and a part of the non-slip mat 52 covers a part of the extension step 53, so that one of the feet of the worker when moving. Since the part can easily touch the anti-slip, it is possible to prevent the foot from slipping when getting on and off or working, and it is possible to prevent a decrease in work efficiency.

図4に示すとおり、前記車体10は、畝の高さや移植する苗の品種や育苗段階に合わせて植付深さを適切に合わせるべく、前記左右の走行伝動ケース21,21を上下回動させて車高を変更する、車高調節機構54を左右中央部付近に伸縮自在に装着している。該車高調節機構54は、伸縮自在な昇降シリンダ55と、該昇降シリンダ55を構成する前後方向に摺動するピストンロッドの後端部側に、回動自在に設ける左右方向を長手方向とする天秤アーム56と、該天秤アーム56の左右両側に、一側端部が機体前側で走行伝動ケース21,21の回動機構と連結される昇降ロッド58,58を各々設ける。なお、該左右の昇降ロッド58,58のうち、左右どちらか一側には、ローリングシリンダ59を伸縮可能に設け、対応する側の走行伝動ケース21を上下回動させて車体10の左右傾斜角度を変更可能に構成する。 As shown in FIG. 4, the vehicle body 10 rotates the left and right traveling transmission cases 21 and 21 up and down in order to appropriately adjust the planting depth according to the height of the ridges, the variety of seedlings to be transplanted, and the seedling raising stage. A vehicle height adjusting mechanism 54 for changing the vehicle height is mounted in the vicinity of the center of the left and right sides so as to be expandable and contractible. The vehicle height adjusting mechanism 54 has a stretchable elevating cylinder 55 and a left-right direction rotatably provided on the rear end side of a piston rod that slides in the front-rear direction constituting the elevating cylinder 55 as a longitudinal direction. Lifting rods 58 and 58 are provided on the balance arm 56 and on the left and right sides of the balance arm 56, one side of which is connected to the rotation mechanism of the traveling transmission cases 21 and 21 on the front side of the machine body, respectively. A rolling cylinder 59 is provided on one of the left and right lifting rods 58 and 58 so as to be expandable and contractible, and the traveling transmission case 21 on the corresponding side is rotated up and down to tilt the vehicle body 10 to the left and right. Can be changed.

前記左右の昇降ロッド58,58は、天秤アーム56から機体前側に向かって直線的に設けられ、その一部は左右の搭乗ステップ34,31の機体内側を通過し、その上下位置は左右の搭乗ステップ34,31の上面付近である。したがって、昇降ロッド58がむき出しであると、作業者の足が接触し、昇降ロッド58が破損する、あるいは前後摺動が妨げられて車体10の車高調節やローリングが正常に行われなくなる問題がある。ただ、昇降ロッド58の上方をステップで覆ってしまうと、メンテナンスの度にステップを着脱する必要があり、メンテナンス作業に要する時間や労力が増大することになる。 The left and right lifting rods 58 and 58 are provided linearly from the balance arm 56 toward the front side of the machine body, and a part of them passes through the inside of the machine body of the left and right boarding steps 34 and 31, and their vertical positions are left and right boarding. It is near the upper surface of steps 34 and 31. Therefore, if the elevating rod 58 is exposed, there is a problem that the feet of the operator come into contact with each other, the elevating rod 58 is damaged, or the front-rear sliding is hindered, and the vehicle height adjustment and rolling of the vehicle body 10 cannot be performed normally. is there. However, if the upper part of the elevating rod 58 is covered with a step, it is necessary to attach / detach the step every time maintenance is performed, which increases the time and labor required for the maintenance work.

この問題を防止すべく、図1から図3、及び図5に示すとおり、搭乗ステップ34の機体内側は上方に向けて折り曲げ、この折り曲げ部分にロッドカバー57を装着し、前記昇降ロッド58の上部と機体外側部を覆わせる。そして、該ロッドカバー57は、機体前側の上下方向の約下半分を機体後側に、昇降ロッド58が露出しない範囲で後退させ、四角形状の空隙部57aを形成する。 In order to prevent this problem, as shown in FIGS. 1 to 3 and 5, the inside of the machine body of the boarding step 34 is bent upward, a rod cover 57 is attached to the bent portion, and the upper part of the elevating rod 58 is attached. And cover the outside of the aircraft. Then, the rod cover 57 retracts about the lower half of the front side of the machine body in the vertical direction toward the rear side of the machine body within a range where the elevating rod 58 is not exposed, and forms a quadrangular gap portion 57a.

これにより、空隙部57aに作業者の足を入れることができるので、作業者がより作業しやすい姿勢で搭乗することができ、作業者の疲労の蓄積が軽減される。 As a result, the operator's feet can be put into the gap portion 57a, so that the operator can board in a posture that makes it easier to work, and the accumulation of fatigue of the operator is reduced.

なお、前記ロッドカバー57の上部には、走行伝動ケース21への伝動を入切するサイドクラッチ(図示省略)を入切操作するサイドクラッチレバー67、及び、後述する植付ホッパ41による、圃場に植え付けられる苗同士の前後間隔、所謂株間を調節操作する株間切替レバー68のガイド溝を各々形成し、レバーガイドを兼ねる構成としてもよい。 In the upper part of the rod cover 57, a side clutch lever 67 for turning on / off a side clutch (not shown) for turning on / off the transmission to the traveling transmission case 21 and a planting hopper 41 described later are used in the field. A guide groove of the inter-strain switching lever 68 for adjusting the front-rear distance between the seedlings to be planted, that is, the so-called inter-strain spacing, may be formed to serve as a lever guide.

次に、植付機構40は、昇降されて苗を植え付ける、複数の植付条に各々対応する植付ホッパ41、即ち左右の外側植付ホッパ41a,41dと左右の内側植付ホッパ41b,41cを有する構成である。 Next, the planting mechanism 40 raises and lowers to plant seedlings, and the planting hoppers 41 corresponding to the plurality of planting rows, that is, the left and right outer planting hoppers 41a and 41d and the left and right inner planting hoppers 41b and 41c. It is a configuration having.

本願においては、植付機構40は、機体左側の外側植付ホッパ41a及び内側植付ホッパ41b、及び機体右側の外側植付ホッパ41d及び内側植付ホッパ41cを各々昇降させて苗を植え付ける構成である。 In the present application, the planting mechanism 40 is configured to raise and lower the outer planting hopper 41a and the inner planting hopper 41b on the left side of the machine body, and the outer planting hopper 41d and the inner planting hopper 41c on the right side of the machine body to plant seedlings. is there.

なお、外側植付ホッパ41a,内側植付ホッパ41b,外側植付ホッパ41d及び内側植付ホッパ41cは、各々を区別すべく、機体左右一方の外側に配置される第1植付ホッパ41a、機体左右一方の内側に配置される第2植付ホッパ42b、機体左右他方の内側に配置される第3植付ホッパ41c、及び機体左右他方の外側に配置される第4植付ホッパ41dと呼称してもよい。 The outer planting hopper 41a, the inner planting hopper 41b, the outer planting hopper 41d, and the inner planting hopper 41c are the first planting hopper 41a and the machine body arranged on the outside of one of the left and right sides of the machine body in order to distinguish them from each other. They are called the second planting hopper 42b arranged inside one of the left and right sides, the third planting hopper 41c arranged inside the other left and right sides of the aircraft, and the fourth planting hopper 41d arranged outside the other left and right sides of the aircraft. You may.

苗供給テーブル42は、ループ状に連結されて周回させられる、搭乗作業者により投入された苗を収容する複数の苗収容カップなどを有する。 The seedling supply table 42 has a plurality of seedling storage cups for accommodating seedlings introduced by the boarding worker, which are connected in a loop and are circulated.

車体10の後部には、苗供給テーブル42により供給された苗を植え付ける4つの植付ホッパ41、及び植付けられた苗の周辺の土壌に鎮圧荷重を負荷する鎮圧機構50等が、駆動後輪12と共に配置されている。 At the rear of the vehicle body 10, four planting hoppers 41 for planting seedlings supplied by the seedling supply table 42, a suppression mechanism 50 for applying a suppression load to the soil around the planted seedlings, and the like are driven by the rear wheels 12. Is placed with.

図6から図8に示すとおり、上記の第1から第4植付ホッパ41a,41b,41c,41dは、上部側を回動支点として下部側が開閉するクチバシ形状の左右一対のホッパ構成体39,39と、苗供給テーブル42から落下供給される苗を該左右のホッパ構成体39,39の内部に案内する苗ガイド38で構成する。 As shown in FIGS. 6 to 8, the first to fourth planting hoppers 41a, 41b, 41c, 41d have a pair of left and right beak-shaped hopper constituents 39, which open and close on the lower side with the upper side as a rotation fulcrum. It is composed of 39 and a seedling guide 38 that guides seedlings that are dropped and supplied from the seedling supply table 42 to the inside of the left and right hopper constituents 39, 39.

該苗ガイド38は平面視で楕円形状とし、機体左右外側に位置する外側植付ホッパ41a,41dの上部に設ける外側苗ガイド38a,38dは、長手方向が機体左右方向を向く姿勢で装着する。一方、機体左右内側に位置する内側植付ホッパ41b,41cの上部に設ける内側苗ガイド38b,38cは、長手方向が機体前後方向を向く姿勢で装着する。さらに、該左右の内側苗ガイド38b,38cは、苗供給テーブル42の左右方向の搬送経路の下方において、機体前側部分が搬送経路に臨む配置とする。 The seedling guide 38 has an elliptical shape in a plan view, and the outer seedling guides 38a and 38d provided above the outer planting hoppers 41a and 41d located on the left and right outer sides of the machine body are mounted in a posture in which the longitudinal direction faces the left and right direction of the machine body. On the other hand, the inner seedling guides 38b and 38c provided above the inner planting hoppers 41b and 41c located on the left and right inner sides of the machine body are mounted in a posture in which the longitudinal direction faces the front and rear direction of the machine body. Further, the left and right inner seedling guides 38b and 38c are arranged so that the front portion of the machine body faces the transport path below the transport path in the left-right direction of the seedling supply table 42.

図1及び図2に示すとおり、前記苗供給テーブル42は、作業者が苗を一株または所定株数投入する、複数の苗搬送カップ42a…を円周状に繋げ、駆動力を受けて周回駆動させ、所定位置、即ち第1から第4の植付ホッパ41a,41b,41c,41dの上方で投入された苗を落下供給する構成としており、苗の植付の前後間隔、即ち株間の変速機構(図示省略)の切替操作に合わせて、この周回駆動による複数の苗搬送カップ42a…の回転ピッチが変化する構成とする。 As shown in FIGS. 1 and 2, in the seedling supply table 42, a plurality of seedling transport cups 42a ... The seedlings are dropped and supplied at a predetermined position, that is, above the first to fourth planting hoppers 41a, 41b, 41c, 41d. The rotation pitches of the plurality of seedling transport cups 42a ... By this orbital drive change according to the switching operation (not shown).

本件においては、株間を切り替えた際、苗供給テーブル42の直線搬送部分と円弧搬送部分の境目付近に位置する第1及び第4の植付ホッパ41a,41dに苗が落下供給される位置が機体左右方向に大きく変わり、苗供給テーブル42の直線搬送部分に位置する第2及び第3の植付ホッパ41b,41cに苗が落下供給される位置はほとんど変化しない構成である。 In this case, when the stocks are switched, the position where the seedlings are dropped and supplied to the first and fourth planting hoppers 41a and 41d located near the boundary between the linear transport portion and the arc transport portion of the seedling supply table 42 is the machine body. It changes significantly in the left-right direction, and the positions where the seedlings are dropped and supplied to the second and third planting hoppers 41b and 41c located in the linear transport portion of the seedling supply table 42 are almost unchanged.

左右の外側苗ガイド38a,38dの長手方向を機体左右方向に向けることにより、苗供給テーブル42の回転ピッチを変更して苗の落下供給位置が大きく変動しても、苗は左右の外側苗ガイド38a,38dの左右幅内に落下するので、苗の引継ぎミスにより、苗が植え付けられない箇所の発生が防止される。これにより、苗を手作業で植え直す必要が無くなり、作業者の労力が軽減される。 By directing the longitudinal directions of the left and right outer seedling guides 38a and 38d to the left and right directions of the machine, even if the rotation pitch of the seedling supply table 42 is changed and the drop supply position of the seedlings fluctuates greatly, the seedlings will be the left and right outer seedling guides. Since the seedlings fall within the left-right width of 38a and 38d, it is possible to prevent the occurrence of places where the seedlings cannot be planted due to a mistake in taking over the seedlings. This eliminates the need to manually replant the seedlings and reduces the labor of the operator.

また、左右の内側苗ガイド38b,38cの長手方向を機体前後方向に向け、左右の内側苗ガイド38b,38cの機体前側部分を苗供給テーブル42の直線搬送部分の下方に配置したことにより、左右の内側苗ガイド38b,38c同士の左右間隔が広くなると共に、左右の内側苗ガイド38b,38cが植付機構40の昇降機構に接触することが防止でき、苗同士の左右間隔(条間)の狭い植付作業に適した移植機を構成できる。 Further, the left and right inner seedling guides 38b and 38c are oriented in the front-rear direction of the machine body, and the left and right inner seedling guides 38b and 38c are arranged below the linear transport part of the seedling supply table 42. The left-right distance between the inner seedling guides 38b and 38c is widened, and the left and right inner seedling guides 38b and 38c can be prevented from coming into contact with the elevating mechanism of the planting mechanism 40. A transplant machine suitable for narrow planting work can be configured.

上記第1から第4の植付ホッパ41a,41b,41c,41dが植え付けた苗の周囲を鎮圧する鎮圧機構50は、簡潔に言えば、左右の外側植付ホッパ41a,41dに各々対応する外側鎮圧具100a,100dと、左右の内側植付ホッパ41b,41cに各々対応する内側鎮圧具100b,100cで構成される。 The suppression mechanism 50 that suppresses the circumference of the seedlings planted by the first to fourth planting hoppers 41a, 41b, 41c, 41d is simply the outer side corresponding to the left and right outer planting hoppers 41a, 41d, respectively. It is composed of the suppressors 100a and 100d and the inner suppressors 100b and 100c corresponding to the left and right inner planting hoppers 41b and 41c, respectively.

図9から図10により、鎮圧機構50について具体的に説明する。 The suppression mechanism 50 will be specifically described with reference to FIGS. 9 to 10.

まず、車体10の後部に左右方向に配置する後部円筒フレーム70の左右両側に鎮圧支持プレート71,71を設け、該左右の鎮圧支持プレート71,71の左右間にローリング支持プレート72,72を設け、該左右の鎮圧支持プレート71,71及び左右のローリング支持プレート72,72の機体後側に各々形成する取付孔部(図示省略)を通して左右の鎮圧回動軸73,73を回転可能に設ける。なお、該左右の鎮圧回動軸73,73の機体内側端部同士は連結しないが、土や石等の接触防止や機体内側方向に鎮圧回動軸73,73が寄ることを防止すべく、一つの防護カラー69で左右の鎮圧回動軸73,73の機体内側端部付近の外周を覆う構成とする。 First, compression support plates 71, 71 are provided on the left and right sides of the rear cylindrical frame 70 arranged in the left-right direction at the rear portion of the vehicle body 10, and rolling support plates 72, 72 are provided between the left and right compression support plates 71, 71. The left and right compression rotation shafts 73 and 73 are rotatably provided through mounting holes (not shown) formed on the rear side of the machine body of the left and right compression support plates 71 and 71 and the left and right rolling support plates 72 and 72, respectively. Although the inner ends of the left and right compression rotation shafts 73 and 73 are not connected to each other, in order to prevent contact with soil and stones and to prevent the compression rotation shafts 73 and 73 from moving toward the inside of the fuselage. One protective collar 69 covers the outer periphery of the left and right suppression rotation shafts 73 and 73 near the inner end of the fuselage.

そして、前記左右の鎮圧回動軸73,73の機体外側端部から左右内側に向かう所定範囲に亘って、左右の外側鎮圧具100a,100dを構成する外側取付ボス74,74を連動して回転可能に装着する連動装着部73a,73aを各々形成する。 Then, the outer mounting bosses 74, 74 constituting the left and right outer pressurizing tools 100a, 100d are interlocked and rotated over a predetermined range from the outer end portions of the left and right pressurizing rotation shafts 73, 73 toward the left and right inward. Interlocking mounting portions 73a and 73a to be mounted are formed, respectively.

該連動装着部73a,73aは、四角柱、六角柱等の多角柱形状とし、連動装着部73a,73aに差し込んで装着する外側取付ボス74,74の孔部の形状を同形状とする。 The interlocking mounting portions 73a and 73a have a polygonal column shape such as a quadrangular prism and a hexagonal prism, and the holes of the outer mounting bosses 74 and 74 that are inserted and mounted into the interlocking mounting portions 73a and 73a have the same shape.

なお、前記左右の外側取付ボス74,74の機体前側位置には、外側取付ボス74,74の左右方向の位置ずれを防止する前側ボルトを設け、左右の外側取付ボス74,74の機体外側端部には、抜け止めワッシャと抜け止めボルトを設けて、作業中に左右の外側鎮圧具100a,100dの鎮圧作用域が変化することを防止する。 The left and right outer mounting bosses 74 and 74 are provided with front bolts to prevent the outer mounting bosses 74 and 74 from being displaced in the left-right direction at the front positions of the machine body, and the left and right outer mounting bosses 74 and 74 are provided with outer ends of the machine body. A retaining washer and a retaining bolt are provided on the portion to prevent the suppression action areas of the left and right outer suppression tools 100a and 100d from changing during work.

上記の外側取付ボス74には、機体後側に向かって突出する左右一対の外側鎮圧フレーム75,75を設け、該左右の外側鎮圧フレーム75,75の後端部を連結する第1外側連結アーム76には、外側鎮圧具100a,100dを下方に付勢して鎮圧作用を強める外側鎮圧スプリング機構77の下端部を連結する。 The outer mounting boss 74 is provided with a pair of left and right outer suppression frames 75, 75 protruding toward the rear side of the machine body, and a first outer connecting arm that connects the rear ends of the left and right outer suppression frames 75, 75. The lower end portion of the outer compression spring mechanism 77 for strengthening the suppression action by urging the outer suppression tools 100a and 100d downward is connected to 76.

さらに、該第1外側連結アーム76より機体前側位置で左右の外側鎮圧フレーム75,75を連結する第2外側連結アーム78を設け、該第2外側連結アーム78の機体前側で且つ左右の外側鎮圧フレーム75,75の左右間には、前記左右の外側植付ホッパ41a,41dに接触して土を擦り落とすホッパスクレーパ79,79を機体前側に装着すると共に、植え付けた苗の周囲の圃場面に接触して植付時に盛り上がり軟らかくなった土を踏み均す鎮圧輪80,80を機体後側に装着する鎮圧取付プレート81,81を各々装着する。 Further, a second outer connecting arm 78 for connecting the left and right outer suppression frames 75, 75 is provided at a position on the front side of the machine body from the first outer connecting arm 76, and the second outer connecting arm 78 is provided on the front side of the machine body and left and right outer suppression. Between the left and right sides of the frames 75 and 75, hopper scrapers 79 and 79 that come into contact with the left and right outer planting hoppers 41a and 41d to scrape off the soil are attached to the front side of the machine body, and in the field scene around the planted seedlings. Suppressor mounting plates 81 and 81 are mounted on the rear side of the machine body to mount the compression wheels 80 and 80 that come into contact with each other and level the soil that has risen and softened during planting.

該左右の鎮圧取付プレート81,81は、機体後側の鎮圧輪取付部81b,81bの左右幅が、スクレーパ取付部81a,81aの左右幅よりも左右の外側鎮圧フレーム75,75の左右中央部に向かって突出する、平面視で「b」あるいは「d」形状とし、鎮圧輪取付部81b,81bには左右方向の長孔81cを形成する。該長孔81cは、機体前後方向に複数形成してもよい。 In the left and right compression mounting plates 81, 81, the left and right widths of the compression wheel mounting portions 81b, 81b on the rear side of the machine body are wider than the left and right widths of the scraper mounting portions 81a, 81a. It has a "b" or "d" shape in a plan view that protrudes toward, and elongated holes 81c in the left-right direction are formed in the compression wheel mounting portions 81b and 81b. A plurality of the elongated holes 81c may be formed in the front-rear direction of the machine body.

また、前記左右の鎮圧輪80,80は、正面(背面)視で上下反転したL字形状の鎮圧取付ステー82,82に回転可能に装着される。具体的には、機体左右方向を向く部分に固定ナット(図示省略)を溶着し、機体上下方向を向く部分に鎮圧輪80,80の鎮圧車軸83,83を各々溶着する。なお、該鎮圧車軸83,83は、左右の外側鎮圧フレーム75,75の左右中央部に向かって突出する配置とする。 Further, the left and right compression wheels 80, 80 are rotatably mounted on the L-shaped compression mounting stays 82, 82 which are upside down when viewed from the front (rear surface). Specifically, a fixing nut (not shown) is welded to a portion facing the left-right direction of the airframe, and the suppression axles 83, 83 of the compression wheels 80, 80 are welded to the portion facing the vertical direction of the airframe, respectively. The suppression axles 83, 83 are arranged so as to project toward the left and right center portions of the left and right outer suppression frames 75, 75.

さらに、前記鎮圧取付ステー82,82の機体上下方向を向く部分で、且つ鎮圧車軸83,83よりも機体上側には、鎮圧輪80,80の機体後側位置で外周面に臨み、鎮圧輪80,80に付着した土を掻き落とす鎮圧輪スクレーパ84,84を各々設ける。該左右の鎮圧輪スクレーパ84,84が鎮圧輪80,80の外周面に付着した土を掻き落とすことにより、鎮圧輪80,80の径が土により変化し、鎮圧作用が弱まることを防止できる。 Further, the compression wheels 80, 80 face the outer peripheral surface at the rear side position of the compression wheels 80, 80 at the portions of the compression mounting stays 82, 82 facing in the vertical direction of the fuselage and above the suppression axles 83, 83. , 80 are provided with compression wheel scrapers 84 and 84, respectively, which scrape off the soil adhering to the 80. The left and right compression wheel scrapers 84, 84 scrape off the soil adhering to the outer peripheral surfaces of the suppression rings 80, 80, so that the diameter of the suppression rings 80, 80 changes depending on the soil, and it is possible to prevent the suppression action from being weakened.

上記により、左右の外側植付ホッパ41a,41dが植え付けた苗の周囲の土を均すと共に、圃場の凹凸に合わせて左右の鎮圧回動軸73,73を回転させる左右の外側鎮圧具100a,100dが構成される。 As described above, the left and right outer planting hoppers 41a and 41d level the soil around the planted seedlings, and the left and right outer pressurizing tools 100a, which rotate the left and right suppression rotation shafts 73 and 73 according to the unevenness of the field. 100d is configured.

前記左右の外側取付ボス74,74の機体内側端部と左右の鎮圧支持プレート71,71の左右間にはスペーサカラー85,85を各々設け、該左右のスペーサカラー85,85より機体内側には、内側取付ボス86,86を各々回転自在に設ける。なお、該内側取付ボス86,86は中空の円筒とし、左右の鎮圧回動軸73,73を中心として回転する構成とする。 Spacer collars 85 and 85 are provided between the left and right outer mounting bosses 74 and 74 and the left and right sides of the left and right compression support plates 71 and 71, respectively, and inside the fuselage from the left and right spacer collars 85 and 85. , Inner mounting bosses 86 and 86 are provided rotatably, respectively. The inner mounting bosses 86, 86 are hollow cylinders, and are configured to rotate around the left and right suppression rotation shafts 73, 73.

該左右の内側取付ボス86,86の外周面には、左右一対の内側鎮圧プレート87,87の基部を差し込んで溶着等により固定する。そして、該左右の内側鎮圧プレート87,87の機体後側端部には、内側鎮圧フレーム88,88を各々固定する。 The bases of the pair of left and right inner suppression plates 87, 87 are inserted into the outer peripheral surfaces of the left and right inner mounting bosses 86, 86 and fixed by welding or the like. Then, the inner suppression frames 88 and 88 are fixed to the rear end portions of the left and right inner suppression plates 87 and 87, respectively.

なお、左右の内側鎮圧プレート87,87は、上下幅が左右幅よりも広い直方体の板体であり、この左右幅は内側鎮圧フレーム88,88の直径よりも狭くする。また、左右の内側鎮圧フレーム88,88は、左右の内側鎮圧プレート87,87の機体外側に各々装着する。そして、左右の内側鎮圧フレーム88,88の後端部を連結する内側連結アーム89には、内側鎮圧具100b,100cを下方に付勢して鎮圧作用を強める内側鎮圧スプリング機構90の下端部を連結する。 The left and right inner suppression plates 87 and 87 are rectangular parallelepiped plates whose vertical width is wider than the left and right width, and the left and right width is narrower than the diameter of the inner suppression frames 88 and 88. Further, the left and right inner suppression frames 88 and 88 are attached to the outer sides of the left and right inner suppression plates 87 and 87, respectively. Then, on the inner connecting arm 89 that connects the rear ends of the left and right inner suppressing frames 88 and 88, the lower end of the inner suppressing spring mechanism 90 that urges the inner suppressing tools 100b and 100c downward to strengthen the suppressing action is provided. Link.

さらに、該内側連結アーム89の機体前側で且つ左右の内側鎮圧フレーム88,88の左右間には、前記左右の内側植付ホッパ41b,41cに接触して土を擦り落とす前記ホッパスクレーパ79,79を機体前側に装着すると共に、前記鎮圧輪80,80を機体後側に装着する鎮圧取付プレート81,81を各々装着する。 Further, on the front side of the inner connecting arm 89 and between the left and right inner suppression frames 88 and 88, the hopper scrapers 79 and 79 come into contact with the left and right inner planting hoppers 41b and 41c to scrape off the soil. Is mounted on the front side of the machine body, and the compression mounting plates 81 and 81 for mounting the compression wheels 80 and 80 on the rear side of the machine body are mounted respectively.

前記左右の鎮圧取付プレート81,81にも前記鎮圧取付ステー82,82を各々設け、前記鎮圧車軸83,83に鎮圧輪80,80を各々設けると共に、左右の鎮圧輪スクレーパ84,84を各々設ける。 The left and right compression mounting plates 81 and 81 are also provided with the compression mounting stays 82 and 82, respectively, the suppression wheels 80 and 80 are provided on the suppression axles 83 and 83, and the left and right compression wheel scrapers 84 and 84 are provided, respectively. ..

上記により、左右の内側植付ホッパ41b,41cが植え付けた苗の周囲の土を均すと共に、圃場の凹凸に合わせて各々上下回動が可能である左右の内側鎮圧具100b,100cが構成される。 As described above, the left and right inner planting hoppers 41b and 41c are configured to level the soil around the planted seedlings and to rotate the left and right inner pressurizers 100b and 100c according to the unevenness of the field. To.

なお、左右の内側鎮圧フレーム88,88に装着する鎮圧取付プレート81,81は、左右の外側鎮圧フレーム75,75に装着する鎮圧取付プレート81,81よりも機体内側に配置され、これにより、内側鎮圧具100b,100cの各鎮圧輪80,80の鎮圧作用域は、外側鎮圧具100a,100dの鎮圧作用域よりも機体後側寄りとなる。 The compression mounting plates 81, 81 attached to the left and right inner suppression frames 88, 88 are arranged inside the machine body with respect to the compression mounting plates 81, 81 attached to the left and right outer suppression frames 75, 75, thereby causing the inside. The suppression action areas of the suppression rings 80 and 80 of the suppression tools 100b and 100c are closer to the rear side of the machine body than the suppression action areas of the outer suppression tools 100a and 100d.

さらに、上記左右の内側鎮圧具100b,100cの左右間で、且つローリング支持プレート72,72の機体外側には、後述する傾斜検出部材300を構成する左右のケーブル部材アーム312,312が各々回動自在に装着される。該左右のケーブル部材アーム312,312は、前記左右の内側鎮圧プレート87,87の左右間で、且つ左右の内側鎮圧フレーム88,88の機体前方に形成される空間部91に臨んで配置される構成とする。 Further, the left and right cable member arms 312 and 312 constituting the inclination detection member 300, which will be described later, rotate between the left and right of the left and right inner pressurizers 100b and 100c and on the outside of the rolling support plates 72 and 72, respectively. It can be installed freely. The left and right cable member arms 312 and 312 are arranged between the left and right inner suppression plates 87 and 87 and facing the space 91 formed in front of the left and right inner suppression frames 88 and 88. It is configured.

以上により、鎮圧装置50が構成される。 As described above, the suppression device 50 is configured.

前記左右の外側鎮圧フレーム75,75のうち、機体内側に位置する外側鎮圧フレーム75の前後方向の中央部付近で且つ機体下側には、機体内側に向かって突出する連動ロッド92,92を設け、該連動ロッド92,92の機体内側の端部側を、前記左右の内側鎮圧フレーム88,88のうち、機体外側に位置する内側鎮圧フレーム88の下方に臨ませる。 Of the left and right outer suppression frames 75 and 75, interlocking rods 92 and 92 protruding toward the inside of the fuselage are provided near the center of the outer suppression frame 75 located inside the fuselage in the front-rear direction and on the lower side of the fuselage. The end side of the interlocking rods 92, 92 on the inner side of the machine body is made to face below the inner suppression frame 88 located on the outer side of the machine body among the left and right inner suppression frames 88, 88.

該連動ロッド92,92を左右の内側鎮圧フレーム88,88の下方に各々臨ませて配置したことにより、左右の外側鎮圧具100a,100dの上方回動時には左右の内側鎮圧具100b,100cが連動して上方回動し、下方回動時には、左右の外側鎮圧具100a,100dの下方回動量に合わせて左右の内側鎮圧具100b,100cが下方回動する構成になる。 By arranging the interlocking rods 92 and 92 so as to face below the left and right inner suppression frames 88 and 88, the left and right inner suppression tools 100b and 100c are interlocked when the left and right outer suppression tools 100a and 100d are rotated upward. Then, it rotates upward, and at the time of downward rotation, the left and right inner suppressors 100b and 100c rotate downward according to the amount of downward rotation of the left and right outer suppressors 100a and 100d.

上記の構成により、左右の外側鎮圧具100a,100dの上下回動に連動して隣接する左右の内側鎮圧具100b,100cを上下回動させることができるので、車体10の左右傾斜を傾斜検出部材300で検知し、圃場面に対する車体10の姿勢を水平に保つことができる。これにより、苗が圃場面に斜めに植え付けられることや、車体10の傾斜により進行方向が乱れることが防止され、苗の植付精度の低下が防止される。 With the above configuration, the adjacent left and right inner pressurizing tools 100b and 100c can be rotated up and down in conjunction with the vertical rotation of the left and right outer pressurizing tools 100a and 100d. It can be detected by 300 and the posture of the vehicle body 10 with respect to the field scene can be kept horizontal. As a result, it is possible to prevent the seedlings from being planted diagonally in the field scene and to prevent the traveling direction from being disturbed due to the inclination of the vehicle body 10, and it is possible to prevent a decrease in the planting accuracy of the seedlings.

また、車体10の左右傾斜にはあまり関係しない、植付中の畝の中央付近に大きな凹凸や石があるとき、左右の内側鎮圧具100b,100cを各々独立して上下回動させることができるので、左右の内側鎮圧具100b,100cが凹凸や石の影響で走行抵抗になることが防止される。 Further, when there are large irregularities or stones near the center of the ridges being planted, which are not so related to the left-right inclination of the vehicle body 10, the left and right inner suppressors 100b and 100c can be rotated up and down independently. Therefore, it is possible to prevent the left and right inner pressurizing tools 100b and 100c from becoming running resistance due to the influence of unevenness and stones.

また、各鎮圧輪80,80の左右間を調節することができるので、植え付ける苗の種類や生育段階に合わせて適切な位置を鎮圧させることができる。これにより、苗の周囲の土が固められず、苗が倒れたり外気の影響を受けて生育不良を起こすことや、鎮圧輪80,80が苗を踏み潰すことが防止され、苗の生育が良好になる。 Further, since the distance between the left and right sides of each of the suppression rings 80 and 80 can be adjusted, it is possible to suppress an appropriate position according to the type of seedling to be planted and the growth stage. As a result, the soil around the seedlings is not solidified, the seedlings are prevented from falling or causing poor growth due to the influence of the outside air, and the suppression rings 80 and 80 are prevented from trampling the seedlings, and the seedlings grow well. become.

また、左右の内側取付ボス86,86に左右幅の狭い左右の内側鎮圧プレート87,87を装着したことにより、ケーブル部材アーム312,312が内側鎮圧プレート87,87に干渉することなく上下回動可能となるので、車体10が左右方向に傾斜した際に水平姿勢に速やかに戻すことができ、苗の植付精度の低下が防止される。 Further, by mounting the left and right inner suppression plates 87 and 87 having a narrow left and right width on the left and right inner mounting bosses 86 and 86, the cable member arms 312 and 312 rotate up and down without interfering with the inner suppression plates 87 and 87. This makes it possible to quickly return to the horizontal posture when the vehicle body 10 is tilted in the left-right direction, and it is possible to prevent a decrease in seedling planting accuracy.

上記の鎮圧装置50は、植付作業時には接地させる必要があるが、非作業走行時に圃場面近くにあると走行抵抗になる、あるいは地面付近にある物体と接触して破損するおそれがある。また、旋回時に鎮圧装置50が圃場面近くに位置していると、鎮圧装置50が旋回走行を妨げることや、接地抵抗で破損するおそれがある。 The above-mentioned suppression device 50 needs to be grounded during the planting work, but if it is near the field scene during non-working running, it may become running resistance or may be damaged by coming into contact with an object near the ground. Further, if the suppression device 50 is located near the field scene during turning, the suppression device 50 may hinder the turning running or may be damaged by the ground contact resistance.

非作業走行時や旋回時は、昇降シリンダを伸長させて車体10の車高を植付作業時よりも高くするが、このとき昇降シリンダの伸長に合わせて鎮圧昇降ケーブル(図示省略)の一側端部が機体前側に引っ張られる構成とする。そして、該鎮圧昇降ケーブルの他側端部は、前記左右の外側取付ボス74,74に設ける昇降ケーブルステー93,93に連結する。なお、鎮圧昇降ケーブルは、車体10の車高が植付作業の上限位置を超えた位置で鎮圧装置50を上方に引き上げ始め、植付作業の上限位置よりも車高が低い状態では弛んで鎮圧装置50を上方に引き上げない張り方とする。 During non-working or turning, the elevating cylinder is extended to raise the vehicle height of the vehicle body 10 higher than during planting work. At this time, one side of the pressure-reducing elevating cable (not shown) is extended according to the extension of the elevating cylinder. The end is pulled toward the front of the machine. Then, the other end of the compression elevating cable is connected to the elevating cable stays 93, 93 provided on the left and right outer mounting bosses 74, 74. The suppression lifting cable starts to pull up the suppression device 50 at a position where the vehicle height of the vehicle body 10 exceeds the upper limit position of the planting work, and loosens and suppresses the pressure when the vehicle height is lower than the upper limit position of the planting work. The device 50 is stretched so as not to be pulled upward.

これにより、植付作業を行わない車高にすると鎮圧装置50が自動的に上方回動するので、走行中や旋回中に鎮圧装置50が地面に接触することが防止され、破損したり、車体10の走行を妨げることが防止される。 As a result, the suppression device 50 automatically rotates upward when the vehicle height is set so that the planting work is not performed. Therefore, the suppression device 50 is prevented from coming into contact with the ground during traveling or turning, and the vehicle body may be damaged or the vehicle body may be damaged. It is prevented from hindering the running of 10.

また、左右の外側鎮圧具100a,10・BR>Odを上方回動させる構成としたことにより、左右の内側鎮圧具100b,100cを連動して上方回動させることができるので、左右の内側鎮圧具100b,100cを車体10の車高調節に合わせて上下回動させる機構が不要となり、構成の簡略化が図られる。 Further, by configuring the left and right outer pressurizing tools 100a, 10 · BR> Od to rotate upward, the left and right inner pressurizing tools 100b, 100c can be interlocked and rotated upward, so that the left and right inner pressurizing tools 100a, 10 BR> Od can be rotated upward. A mechanism for rotating the tools 100b and 100c up and down according to the vehicle height adjustment of the vehicle body 10 becomes unnecessary, and the configuration can be simplified.

図 に示す第1から第4の鎮圧具100a,100b,100c,100dの各鎮圧輪80,80は、接地面に対して水平乃至略水平な姿勢で配置されている。レタス苗等の左右幅がある程度大きな苗については、苗の左右両側を広く鎮圧できる上記の鎮圧輪80,80の配置が好ましい。 The compression wheels 80, 80 of the first to fourth suppression tools 100a, 100b, 100c, and 100d shown in the figure are arranged in a horizontal or substantially horizontal posture with respect to the ground contact surface. For seedlings such as lettuce seedlings that have a certain width on the left and right, it is preferable to arrange the above-mentioned suppression rings 80 and 80 that can widely suppress the left and right sides of the seedling.

しかしながら、タマネギ苗等の左右幅が小さい苗については、鎮圧輪80,80の左右間隔を最小限にしても、苗の周囲の土を十分に鎮圧できず、苗が倒れたり、土の中に冷たい空気が入り込み、低温の影響を受けたりすることがある。 However, for seedlings with a small left-right width such as onion seedlings, even if the left-right spacing of the suppression rings 80 and 80 is minimized, the soil around the seedlings cannot be sufficiently suppressed, and the seedlings may fall or enter the soil. Cold air may enter and be affected by low temperatures.

細い苗の傍の土を鎮圧する第2の鎮圧装置150は、次のとおり構成する。図11から図13に示すとおり、機体左右一側(機体左側)に位置する外側鎮圧フレーム75及び内側鎮圧フレーム88に左側取付プレート180Lを機体下方に向けて取り付け、該左側取付プレート180Lの下端部に、側面視で「へ」の字形状の左側鎮圧ステー181Lを機体前側下方で、且つ左右の外側鎮圧フレーム75,75または左右の内側鎮圧フレーム88,88の左右中央部に向かう姿勢で溶接等によって固定する。 The second suppression device 150 that suppresses the soil near the thin seedlings is configured as follows. As shown in FIGS. 11 to 13, the left side mounting plate 180L is attached to the outer suppression frame 75 and the inner suppression frame 88 located on the left and right sides of the machine body (left side of the machine body) with the left side mounting plate 180L facing downward, and the lower end portion of the left side mounting plate 180L. In addition, the left side suppression stay 181L, which has a "he" shape when viewed from the side, is welded at the lower front side of the machine and in a posture toward the left and right center parts of the left and right outer suppression frames 75,75 or the left and right inner suppression frames 88,88. Fixed by.

そして、左側鎮圧車軸182Lを左右の外側鎮圧フレーム75,75または左右の内側鎮圧フレーム88,88の左右中央部に向かう姿勢で、且つ機体上方に向けて配置し、該左側鎮圧車軸182Lに左側鎮圧輪183Lを、背面視で機体下側ほど左右の外側鎮圧フレーム75,75または左右の内側鎮圧フレーム88,88の左右中央部に接近する左右傾斜姿勢で回転自在に配置する。 Then, the left side suppression axle 182L is arranged in a posture toward the left and right center portions of the left and right outer suppression frames 75,75 or the left and right inner suppression frames 88,88, and is arranged toward the upper side of the fuselage, and the left side suppression axle 182L is used for left side compression. The wheels 183L are rotatably arranged in a left-right tilted posture that approaches the left and right outer suppression frames 75, 75 or the left and right inner suppression frames 88, 88 toward the lower side of the machine body when viewed from the rear.

前記左側鎮圧輪183Lは、左側鎮圧車軸182Lの機体左右一側、即ち機体下側からボルトまたはナット等の固定部材184を用いて固定するが、この固定部材184は、左側鎮圧輪183Lの上下中心よりも機体下側に取り付ける構成とする。 The left side compression wheel 183L is fixed by using a fixing member 184 such as a bolt or a nut from one side of the left side compression wheel 182L, that is, from the lower side of the body, and the fixing member 184 is the vertical center of the left side compression wheel 183L. It is configured to be attached to the lower side of the fuselage.

また、左側鎮圧輪183Lを装着する左側鎮圧ステー181Lの機体前側端部付近には、上下方向の長孔、あるいは上下方向に複数の取付孔を形成し、左側鎮圧輪183Lの上下位置を調節可能に装着する。 Further, a long hole in the vertical direction or a plurality of mounting holes in the vertical direction are formed in the vicinity of the front end of the left side compression stay 181L on which the left side compression wheel 183L is mounted, and the vertical position of the left compression wheel 183L can be adjusted. Attach to.

さらに、左側鎮圧ステー181Lの機体前後部分には、機体下側に向かう左側スクレーパステー185Lを設け、該左側スクレーパステー185Lには、左側鎮圧輪183Lの側面を経由して後部側に作用部が臨む、L字形状の左側スクレーパ186Lを設ける。なお、該左側スクレーパステー185Lには、前後方向の長孔を形成し、左側鎮圧輪183Lと左側スクレーパ186Lの前後距離を調節可能に構成する。 Further, a left side scrape paste 185L facing the lower side of the machine is provided on the front and rear parts of the left side suppression stay 181L, and the left side scrape pastee 185L faces the action part on the rear side via the side surface of the left side compression wheel 183L. , L-shaped left scraper 186L is provided. The left scrap pasty 185L is formed with elongated holes in the front-rear direction so that the front-rear distance between the left-side compression ring 183L and the left-side scraper 186L can be adjusted.

そして、機体左右他側(機体右側)に位置する外側鎮圧フレーム75及び内側鎮圧フレーム88に右側取付プレート180Rを機体下方に向けて取り付け、該右側取付プレート180Rの下端部に、側面視で「へ」の字形状の右側鎮圧ステー181Rを機体後側下方で、且つ左右の外側鎮圧フレーム75,75または左右の内側鎮圧フレーム88,88の左右中央部に向かう姿勢で溶着等で固定する。 Then, the right side mounting plate 180R is attached to the outer suppression frame 75 and the inner suppression frame 88 located on the other side of the left and right sides of the machine body (right side of the machine body) toward the lower side of the machine body, and the right side mounting plate 180R is attached to the lower end portion of the right side mounting plate 180R in a side view. The right side compression stay 181R in the shape of "" is fixed by welding or the like at the lower rear side of the machine body and in a posture toward the left and right center portions of the left and right outer suppression frames 75, 75 or the left and right inner suppression frames 88, 88.

そして、右側鎮圧車軸182Rを左右の外側鎮圧フレーム75,75または左右の内側鎮圧フレーム88,88の左右中央部に向かう姿勢で、且つ機体上方に向けて配置し、該右側鎮圧車軸182Rに右側鎮圧輪183Rを、背面視で機体下側ほど左右の外側鎮圧フレーム75,75または左右の内側鎮圧フレーム88,88の左右中央部に接近する左右傾斜姿勢で回転自在に配置する。 Then, the right-side suppression axle 182R is arranged in a posture toward the left-right center portion of the left and right outer suppression frames 75, 75 or the left and right inner suppression frames 88, 88, and is arranged toward the upper side of the fuselage, and the right-side suppression axle 182R is used for right-side suppression. The wheels 183R are rotatably arranged in a left-right tilted posture that approaches the left and right outer suppression frames 75, 75 or the left and right inner suppression frames 88, 88 toward the lower side of the machine body when viewed from the rear.

前記右側鎮圧輪183Rは、右側鎮圧車軸182Rの機体左右他側、即ち機体下側からボルトまたはナット等の固定部材184を用いて固定するが、この固定部材184は、右側鎮圧輪183Rの上下中心よりも機体下側に取り付ける構成とする。 The right side compression wheel 183R is fixed from the left and right sides of the right side suppression wheel 182R, that is, from the lower side of the body using fixing members 184 such as bolts or nuts, and the fixing member 184 is the vertical center of the right side compression wheel 183R. It is configured to be attached to the lower side of the fuselage.

また、右側鎮圧輪183Rを装着する右側鎮圧ステー181Rの機体前側端部付近には、上下方向の長孔、あるいは上下方向に複数の取付孔を形成し、右側鎮圧輪183Rの上下位置を調節可能に装着する。 In addition, a long hole in the vertical direction or a plurality of mounting holes in the vertical direction are formed near the front end of the right-side compression stay 181R to which the right-side compression wheel 183R is mounted, and the vertical position of the right-side compression wheel 183R can be adjusted. Attach to.

さらに、右側鎮圧ステー181Rの機体前後部分には、機体下側に向かう右側スクレーパステー185Rを設け、該右側スクレーパステー185Rには、右側鎮圧輪183Rの側面を経由して後部側に作用部が臨む、L字形状の右側スクレーパ186Rを設ける。なお、該右側スクレーパステー185Rには、前後方向の長孔を形成し、右側鎮圧輪183Rと右側スクレーパ186Rの前後距離を調節可能に構成する。 Further, a right-side scrap pasty 185R facing the lower side of the fuselage is provided on the front-rear portion of the right-side suppression stay 181R, and the right-side scrape paste 185R faces the rear side via the side surface of the right-side suppression ring 183R. , L-shaped right scraper 186R is provided. The right scrape paste 185R is formed with elongated holes in the front-rear direction so that the front-rear distance between the right-side compression ring 183R and the right-side scraper 186R can be adjusted.

上記の構成では、背面視において、左右の鎮圧輪183L,183Rの下部側同士が近接し合うので、左右の鎮圧輪183L,183Rの鎮圧作用位置を植え付けた苗の際に近付けることができる。これにより、苗の周囲の土が柔らかいままとなり、苗が風等の影響で倒れることや、土中の温度が低下して生育に悪影響が出ることが防止される。 In the above configuration, since the lower sides of the left and right suppression wheels 183L and 183R are close to each other in the rear view, the suppression action positions of the left and right suppression wheels 183L and 183R can be brought closer to the planted seedlings. As a result, the soil around the seedlings remains soft, and the seedlings are prevented from collapsing due to the influence of wind or the like, and the temperature in the soil is lowered to adversely affect the growth.

また、左側取付プレート180Lと右側取付プレート180Rの取付位置を機体前後方向で異ならせることにより、左右の鎮圧輪183L,183Rの前後位置にズレが生じにくく、苗の周囲の鎮圧を確実に行えると共に、外側の鎮圧具100a,100dの機体内側と内側の鎮圧具100b,100cの外側の左右間隔を各々狭くしつつ、外側の鎮圧具100a,100dと内側の鎮圧具100b,100cが干渉し合うことが防止される。 Further, by making the mounting positions of the left side mounting plate 180L and the right side mounting plate 180R different in the front-rear direction of the machine body, the front-rear positions of the left and right suppression wheels 183L and 183R are less likely to be displaced, and the surroundings of the seedlings can be reliably suppressed. The outer suppressors 100a and 100d and the inner suppressors 100b and 100c interfere with each other while narrowing the left-right spacing between the outer pressors 100a and 100d and the inner suppressors 100b and 100c, respectively. Is prevented.

さらに、左右の鎮圧輪183L,183Rを固定する固定部材184の取付位置が、左右の鎮圧輪183L,183Rの上下中央部よりも下側であることにより、外側鎮圧具100a,100dの右側鎮圧輪183Rと内側鎮圧具100b,100cの左側鎮圧輪183Lの左右間隔が狭い配置でありながら、左右の鎮圧輪183L,183Rの斜め下に固定部材を着脱する空間部が形成されるので、着脱作業に要する作業時間の軽減が図られる。 Further, since the mounting position of the fixing member 184 for fixing the left and right compression wheels 183L and 183R is lower than the upper and lower central portions of the left and right compression wheels 183L and 183R, the right suppression wheels of the outer compression wheels 100a and 100d are further installed. Although the left and right distance between the 183R and the left side compression ring 183L of the inner compression wheels 100b and 100c is narrow, a space for attaching and detaching the fixing member is formed diagonally below the left and right compression wheels 183L and 183R. The work time required can be reduced.

次に、図14から図16に示すとおり、左右の外側鎮圧具100a,100dの上下回動量の差に基づき車体10の左右方向の傾斜を検知し、車体10を圃場面に対して水平姿勢にする傾斜検出部材300の配置について説明する。 Next, as shown in FIGS. 14 to 16, the inclination of the vehicle body 10 in the left-right direction is detected based on the difference in the amount of vertical rotation of the left and right outer pressurizing tools 100a and 100d, and the vehicle body 10 is placed in a horizontal posture with respect to the field scene. The arrangement of the inclination detecting member 300 to be performed will be described.

前記左右の内側鎮圧具100b,100cの左右間には、ケーブル部材320が連結されている傾斜検出部材300を配置するためのスペースが形成されている。傾斜検出部材300は、上述のとおり、左右の外側鎮圧具100a,100dに各々対応する傾斜検出アーム部材310を有する。 A space for arranging the inclination detection member 300 to which the cable member 320 is connected is formed between the left and right of the left and right inner pressurizing tools 100b and 100c. As described above, the inclination detection member 300 has an inclination detection arm member 310 corresponding to the left and right outer pressurizing tools 100a and 100d, respectively.

左のケーブル部材320は機体左側の鎮圧回動軸73と連動する左の傾斜検出アーム部材310へ連結されており、右のケーブル部材320は機体右側の鎮圧回動軸73と連動する右の傾斜検出アーム部材310へ連結されている。 The left cable member 320 is connected to the left inclination detection arm member 310 that is interlocked with the suppression rotation shaft 73 on the left side of the machine, and the right cable member 320 is connected to the right inclination that is interlocked with the suppression rotation shaft 73 on the right side of the machine. It is connected to the detection arm member 310.

連携部材としてのローリングワイヤであるケーブル部材320の内の下側のケーブルは、回動可能な鎮圧装置50と干渉することなく、後方から前方へ向かって車体10のメインフレームまたはハンドルフレームの下方に配索される。 The lower cable in the cable member 320, which is a rolling wire as a linking member, is located below the main frame or handle frame of the vehicle body 10 from the rear to the front without interfering with the rotatable compression device 50. Be laid out.

傾斜検出アーム部材ストッパー310cは、被当接部材としての車体貼付プレート10aへ下方から当接することにより、畝終端における車体10の下降に伴う鎮圧装置50の過度な上昇などによる昇降リンク装置40aとの干渉を抑制する。 The inclination detection arm member stopper 310c is brought into contact with the vehicle body sticking plate 10a as the contacted member from below, so that the tilt detection arm member stopper 310c is in contact with the elevating link device 40a due to excessive elevation of the suppression device 50 accompanying the descent of the vehicle body 10 at the end of the ridge. Suppress interference.

種々の調節操作が行いやすいよう、左右の内側鎮圧プレート87,87及び左右の内側鎮圧フレーム88,88と、側面視においてオーバーラップしない傾斜角度で後方へ向かって突出する傾斜検出部材300には、第1から第4の鎮圧具100a,100b,100c,100dに連動して回動する左及び右の傾斜検出アーム部材310により牽引されるケーブル部材320が連結されている。 To facilitate various adjustment operations, the left and right inner suppression plates 87, 87, the left and right inner suppression frames 88, 88, and the inclination detection member 300 projecting rearward at an inclination angle that does not overlap in the side view are provided. A cable member 320 towed by left and right tilt detection arm members 310 that rotate in conjunction with the first to fourth pressurizers 100a, 100b, 100c, and 100d is connected.

車体前後方向調節ボルト310bが車体前後方向調節長孔310aへ挿入されており、位置決めのためのワイヤ支持アームとしての傾斜検出アーム部材後部は車体前後方向に移動可能に傾斜検出アーム部材前部へ取付けられている。このため、傾斜検出部材300の検出結果に基づいて、第1から第4の植付ホッパ41a,41b,41c,41dが圃場面に対して垂直であるように車体10を傾斜させる、植付け水平維持機能としてのローリング機能がより確実に実現される。 The vehicle body front-rear direction adjustment bolt 310b is inserted into the vehicle body front-rear direction adjustment slot 310a, and the rear portion of the inclination detection arm member as a wire support arm for positioning is attached to the front portion of the vehicle body front-rear direction adjustment arm member so as to be movable in the vehicle body front-rear direction. Has been done. Therefore, based on the detection result of the inclination detection member 300, the vehicle body 10 is inclined so that the first to fourth planting hoppers 41a, 41b, 41c, 41d are perpendicular to the field scene, and the planting horizontal maintenance is maintained. The rolling function as a function is realized more reliably.

調節操作が行いやすいように、ケーブル部材320のケーブルアウター部材受け321は、植付機構40の植付機構支持部40bの前方に位置する。 The cable outer member receiver 321 of the cable member 320 is located in front of the planting mechanism support portion 40b of the planting mechanism 40 so that the adjustment operation can be easily performed.

ケーブル部材320のケーブルインナー部材が通過するケーブル通過孔とともに傾斜検出アーム部材310の水平維持感度調節プレートに形成された傾斜検出アーム部材レギュレーター310dは、感度調節にともなうケーブル動作範囲の変化を招来することなく、ケーブル動作範囲を規制して過度なケーブル牽引にともなう油圧バルブ負荷の増大を抑制する。左の傾斜検出アーム部材310の傾斜検出アーム部材レギュレーター310dは右の傾斜検出アーム部材310へ上方から当接することにより左の傾斜検出アーム部材310のケーブル動作範囲を規制し、右の傾斜検出アーム部材310の傾斜検出アーム部材レギュレーター310dは左の傾斜検出アーム部材310へ下方から当接することにより右の傾斜検出アーム部材310のケーブル動作範囲を規制する。 The tilt detection arm member regulator 310d formed on the horizontal maintenance sensitivity adjustment plate of the tilt detection arm member 310 together with the cable passage hole through which the cable inner member of the cable member 320 passes causes a change in the cable operating range due to the sensitivity adjustment. It regulates the cable operating range and suppresses the increase in hydraulic valve load due to excessive cable traction. The tilt detection arm member regulator 310d of the left tilt detection arm member 310 regulates the cable operating range of the left tilt detection arm member 310 by abutting the right tilt detection arm member 310 from above, and the right tilt detection arm member 310. The tilt detection arm member regulator 310d of 310 regulates the cable operating range of the right tilt detection arm member 310 by abutting the left tilt detection arm member 310 from below.

左または右の傾斜検出アーム部材310が、左右の外側鎮圧具100a,100dと連動する鎮圧具アーム311と、ケーブル部材320が連結されているケーブル部材アーム312とに分割されている。 The left or right inclination detection arm member 310 is divided into a compression tool arm 311 interlocking with the left and right outer compression tools 100a and 100d, and a cable member arm 312 to which the cable member 320 is connected.

本実施の形態においては、左の傾斜検出アーム部材310が、左右の外側鎮圧具100a,100dと連動する鎮圧具アーム311と、ケーブル部材320が連結されているケーブル部材アーム312とに分割されている。 In the present embodiment, the left inclination detection arm member 310 is divided into a compression tool arm 311 interlocking with the left and right outer compression tools 100a and 100d, and a cable member arm 312 to which the cable member 320 is connected. There is.

ケーブル部材アーム312は、取付け位置が調節可能であるように、鎮圧具アーム311へ取付けられている。 The cable member arm 312 is attached to the pressurizer arm 311 so that the attachment position can be adjusted.

左の傾斜検出アーム部材310が、車体前側の回動支軸アームとしての鎮圧具アーム311と、車体後側の調節アームとしてのケーブル部材アーム312とに分割されており、車体上下方向調節ボルト311bが車体上下方向調節長孔311aへ挿入されている。これにより、植付け水平維持機能における左右移動量は、ケーブル部材アーム312を上下方向に回動させることにより調節される。 The left tilt detection arm member 310 is divided into a pressurizing tool arm 311 as a rotation support shaft arm on the front side of the vehicle body and a cable member arm 312 as an adjustment arm on the rear side of the vehicle body, and the vehicle body vertical direction adjustment bolt 311b. Is inserted into the vehicle body vertical adjustment elongated hole 311a. As a result, the amount of left-right movement in the planting horizontal maintenance function is adjusted by rotating the cable member arm 312 in the vertical direction.

右の傾斜検出アーム部材310近傍には、凹凸を有する圃場面に接触して回動しながら回動量に基づいて車高を調節するためのいわゆる深さセンサー、及び車体ローリング機構において、左右の外側鎮圧具100a,100dの回動量の差を検知する基準部分などが設けられており、植付け水平維持機能における上下高さ基準となる右の傾斜検出アーム部材310は分割されていないので、車体10の左右傾斜は圃場傾斜及び圃場土質などに応じて設定しやすく、植付ホッパ41が圃場面に対してより垂直である植付け姿勢がより確実に実現され、苗植付け精度が向上される。 In the vicinity of the right tilt detection arm member 310, there are so-called depth sensors for adjusting the vehicle height based on the amount of rotation while rotating in contact with the uneven field scene, and the left and right outside of the vehicle body rolling mechanism. A reference portion for detecting the difference in the amount of rotation of the pressurizing tools 100a and 100d is provided, and the right inclination detection arm member 310, which is a vertical height reference in the planting horizontal maintenance function, is not divided. The left-right inclination can be easily set according to the field inclination, the field soil quality, and the like, and the planting posture in which the planting hopper 41 is more perpendicular to the field scene is more reliably realized, and the seedling planting accuracy is improved.

前記左右の外側鎮圧具100a,100dが上下回動すると、前記左右の鎮圧回動軸73,73が連動して回転し、さらに連動して左右のケーブル部材アーム312,312が前後方向に回動する。このとき、左右の傾斜検出アーム部材310,310の各々の上下位置の変化により、ケーブル部材320,320の各々の引っ張られる量が変動し、ケーブル部材320,320の各一側端部が接続されている油圧バルブ(図示省略)の開度を伸長方向、または収縮方向のいずれかにおいて変更する。油圧バルブの開度が変化すると、接続されているローリングシリンダが伸長し、左右一側の走行伝動ケース21を上下回動させて車体10の左右一側の車高を変更する。 When the left and right outer compression tools 100a and 100d rotate up and down, the left and right compression rotation shafts 73 and 73 rotate in conjunction with each other, and the left and right cable member arms 312 and 312 rotate in the front-rear direction in conjunction with each other. To do. At this time, the amount of pulling of each of the cable members 320 and 320 fluctuates due to the change in the vertical position of each of the left and right inclination detection arm members 310 and 310, and each one side end of the cable members 320 and 320 is connected. The opening degree of the flood control valve (not shown) is changed in either the extension direction or the contraction direction. When the opening degree of the hydraulic valve changes, the connected rolling cylinder extends, and the traveling transmission case 21 on the left and right sides is rotated up and down to change the vehicle height on the left and right sides of the vehicle body 10.

これにより、車体10の左右傾斜を圃場面の傾斜に合わせて変化させることができるので、苗の植付姿勢が圃場面に対して垂直乃至略垂直になり、植付精度が向上する。 As a result, the left-right inclination of the vehicle body 10 can be changed according to the inclination of the field scene, so that the planting posture of the seedlings becomes vertical or substantially perpendicular to the field scene, and the planting accuracy is improved.

また、左右高さの差が生じにくい車体10の左右中央部近くに設けられる左右の外側鎮圧具100b,100cではなく、畝溝の深さ等の影響で左右高さの差が大きくなりやすい左右の外側鎮圧具100a,100dにより車体10の左右傾斜を検出されることにより、苗の植付に影響のある大きな左右傾斜があるときに車体10をローリングさせて水平姿勢とすることができる。 Further, instead of the left and right outer pressurizing tools 100b and 100c provided near the left and right center portions of the vehicle body 10 where the difference in left and right height is unlikely to occur, the difference in left and right height tends to be large due to the influence of the depth of the ridge groove and the like. By detecting the left-right inclination of the vehicle body 10 by the outer pressurizing tools 100a and 100d, the vehicle body 10 can be rolled into a horizontal posture when there is a large left-right inclination that affects the planting of seedlings.

これにより、苗の植付に影響のない僅かな左右傾斜の検出時にローリングシリンダが伸縮作動して車体10が頻繁にローリング動作することを防止できるので、植付姿勢がかえって乱れることが防止される。 As a result, it is possible to prevent the rolling cylinder from expanding and contracting and the vehicle body 10 from frequently rolling when a slight left-right inclination that does not affect the planting of seedlings is detected, so that the planting posture is prevented from being disturbed. ..

左右の外側鎮圧具100a,100dに関する車体上下方向調節のみを行うことができ、いわゆる左右バランス調節、リフト位置調節、及びストッパー位置調節などは不要である。 Only the vertical adjustment of the vehicle body with respect to the left and right outer pressurizing tools 100a and 100d can be performed, and so-called left-right balance adjustment, lift position adjustment, stopper position adjustment and the like are unnecessary.

そして、ケーブル部材320は左右の内側植付ホッパ41b,41c及び左右の外側鎮圧具100a,100dの左右方向のスペースの後方に位置するので、ケーブル部材320の前後移動操作のみならず、ケーブル部材アーム312の上下回動などのような調節操作も行いやすい。 Since the cable member 320 is located behind the space in the left-right direction of the left and right inner planting hoppers 41b and 41c and the left and right outer pressurizers 100a and 100d, not only the front-back movement operation of the cable member 320 but also the cable member arm It is easy to perform adjustment operations such as vertical rotation of 312.

上記では、左右の外側鎮圧具100a,100d及び左右の外側鎮圧具100b,100cを用いてローリング制御を自動的に行わせ、車体10を苗の植付に適した左右傾斜姿勢としているが、畝端での植え始め位置のように左右の外側鎮圧具100a,100d及び左右の外側鎮圧具100b,100cを用いたローリング制御が行えない箇所や、あるいはローリング制御による車体10の左右傾斜が圃場の実態に合っていないときには、手動操作で車体10の左右傾斜を調節する必要がある。 In the above, the rolling control is automatically performed by using the left and right outer suppressors 100a and 100d and the left and right outer suppressors 100b and 100c, and the vehicle body 10 is in a left-right tilted posture suitable for planting seedlings. The actual condition of the field is the place where rolling control cannot be performed using the left and right outer suppressors 100a and 100d and the left and right outer suppressors 100b and 100c, such as the planting start position at the edge, or the left and right inclination of the vehicle body 10 by rolling control. If it does not match, it is necessary to manually adjust the left-right inclination of the vehicle body 10.

しかしながら、従来の移植機では、ローリングの手動操作レバーは車体10の前側寄りに配置されていることが多く、畝端での作業開始前の左右傾斜調整時に畝と機体の左右傾斜角度を比較して調節し辛く、植え始めの斜体10の傾斜角度が畝の角度に合わず、苗の植付姿勢が乱れる問題がある。 However, in conventional transplant machines, the rolling manual operation lever is often arranged closer to the front side of the vehicle body 10, and the left-right inclination angle of the ridge and the aircraft is compared when adjusting the left-right inclination before starting work at the ridge end. It is difficult to adjust, and the inclination angle of the italic 10 at the beginning of planting does not match the angle of the ridge, and there is a problem that the planting posture of the seedling is disturbed.

これを防止すべく、図17から図19に示すとおり、操作ユニット16の前側に機体左右一側に突出する傾斜調節フレーム60を設ける。該傾斜調節フレーム60は、板体を折り曲げて側面視L字形状とし、前側左右一側の機体上側となる面に、左右方向に長い取付切欠部61を形成する。そして、該取付切欠部61を通して傾斜調節レバー62を設け、該傾斜調節レバー62の下端部付近を傾斜調節フレーム60の下部側に左右方向に回動可能に装着する。 In order to prevent this, as shown in FIGS. 17 to 19, an inclination adjusting frame 60 projecting to the left and right sides of the machine body is provided on the front side of the operation unit 16. The tilt adjusting frame 60 has an L-shaped side view by bending a plate body, and a mounting notch 61 long in the left-right direction is formed on a surface on one side of the front side, which is the upper side of the machine body. Then, the tilt adjusting lever 62 is provided through the mounting notch 61, and the vicinity of the lower end portion of the tilt adjusting lever 62 is rotatably mounted on the lower side of the tilt adjusting frame 60 in the left-right direction.

また、前記傾斜調節レバー62の取付位置よりも機体左右他側寄りの位置で、且つ傾斜調節フレーム60の機体上側となる面の下方にケーブルステー64を設ける。そして、該ケーブルステー64と傾斜調節レバー60の上下一側には、傾斜調節レバー60を左右一側方向に回動操作するとローリングシリンダ59を伸長させて、車体10の左右一側が低くなる傾斜姿勢にさせる第1ケーブル65の一側部を取り付け、該ケーブルステー64と傾斜調節レバー60の上下他側には、傾斜調節レバー60を左右他側方向に回動操作するとローリングシリンダ59を収縮させて、車体10の左右他側が低くなる傾斜姿勢にさせる第2ケーブル66の一側部を装着する。 Further, the cable stay 64 is provided at a position closer to the left and right sides of the machine body than the mounting position of the tilt adjustment lever 62, and below the surface of the tilt adjustment frame 60 on the upper side of the machine body. Then, on the upper and lower sides of the cable stay 64 and the tilt adjusting lever 60, when the tilt adjusting lever 60 is rotated in the left-right one-side direction, the rolling cylinder 59 is extended and the left-right side of the vehicle body 10 is lowered. One side of the first cable 65 is attached, and the rolling cylinder 59 is contracted by rotating the tilt adjusting lever 60 in the left-right other direction on the upper and lower sides of the cable stay 64 and the tilt adjusting lever 60. , One side portion of the second cable 66 is attached so that the left and right other sides of the vehicle body 10 are in an inclined posture so as to be lowered.

これにより、作業者は機体の後側から傾斜調節レバー60を操作して第1ケーブル65または第2ケーブル66を介してローリングシリンダ59を伸縮させ、車体10の左右傾斜角度を調節できるので、苗の植付姿勢を畝面に対して適切な姿勢、例えば垂直に植え付けることができ、苗の植付精度が向上する。 As a result, the operator can operate the tilt adjusting lever 60 from the rear side of the machine body to expand and contract the rolling cylinder 59 via the first cable 65 or the second cable 66, and adjust the left-right tilt angle of the vehicle body 10. The planting posture can be set to an appropriate posture with respect to the ridge surface, for example, vertically, and the planting accuracy of seedlings is improved.

また、左右傾斜角度の調節の前後において、作業者がほぼ移動する必要が無いので、作業能率の低下が防止される。 Further, since it is almost unnecessary for the operator to move before and after adjusting the left-right inclination angle, a decrease in work efficiency is prevented.

なお、前記第1ケーブル65及び第2ケーブル66は、周囲の部材との干渉を防止すべく、車体10の後部に設ける操作ユニット16の支持フレーム17に、クランプ(図示省略)等で抑えて装着することが望ましい。 The first cable 65 and the second cable 66 are mounted on the support frame 17 of the operation unit 16 provided at the rear of the vehicle body 10 by being clamped (not shown) or the like in order to prevent interference with surrounding members. It is desirable to do.

また、前記第1ケーブル65及び第2ケーブル66の端部側は、従来の斜体10の前側に位置する傾斜調節レバーの操作方向に合わせて各々装着し、作業者がどちら側から操作しても同様に車体10の左右傾斜角度調節が可能な構成とすると、第1ケーブル65及び第2ケーブル66以外にケーブルを追加する必要が無く、配策の複雑化が防止される。 Further, the end sides of the first cable 65 and the second cable 66 are attached in accordance with the operating direction of the tilt adjusting lever located on the front side of the conventional italic 10, regardless of which side the operator operates. Similarly, if the left-right tilt angle of the vehicle body 10 can be adjusted, it is not necessary to add a cable other than the first cable 65 and the second cable 66, and the complicated arrangement can be prevented.

本発明は、鎮圧装置を耐荷重性の高い乗り降りステップに連結することで負荷による破損が生じにくく、また車体の構成により生じる空間部に鎮圧装置を収納可能であり、圃場の内外で走行する移植機に利用する目的に有用である。 In the present invention, by connecting the suppression device to a step for getting on and off with high load capacity, damage due to load is unlikely to occur, and the suppression device can be stored in the space created by the configuration of the vehicle body, and the transplantation traveling inside and outside the field is possible. It is useful for the purpose of using it for machines.

10 車体
11 従動前輪(転輪)
16 操縦ユニット
17 支持フレーム
21 走行チェーンケース(走行伝動ケース)
24 バンパー
25 前側押圧装置(押圧装置)
26 乗り降りステップ(乗り降り補助部材)
27 前側押圧アーム(押圧アーム)
28 前側押圧ローラ(押圧ローラ)
30 前側スタンド(スタンド)
31 回動ステー
31a 切欠孔
32 スタンドロッド
33 接地バー(接地体)
34 搭乗ステップ
41a 第1植付ホッパ(植付装置)
41b 第2植付ホッパ(植付装置)
41c 第3植付ホッパ(植付装置)
41d 第4植付ホッパ(植付装置)
42 苗供給テーブル(苗供給装置)
51 滑り止めステップ(滑り止め部材)
54 延設ステップ
59 ローリングシリンダ(ローリング調節部材)
62 傾斜調節レバー(傾斜調節部材)
100a 外側鎮圧具(鎮圧装置、外側鎮圧装置)
100b 内側鎮圧具(鎮圧装置、外側鎮圧装置)
100c 内側鎮圧具(鎮圧装置、外側鎮圧装置)
100d 外側鎮圧具(鎮圧装置、外側鎮圧装置)
10 Body 11 Driven front wheels (rolling wheels)
16 Control unit 17 Support frame 21 Travel chain case (travel transmission case)
24 Bumper 25 Front pressing device (pressing device)
26 Getting on and off step (getting on and off auxiliary member)
27 Front pressing arm (pressing arm)
28 Front pressing roller (pressing roller)
30 Front stand (stand)
31 Rotating stay 31a Notch hole 32 Stand rod 33 Grounding bar (grounding body)
34 Boarding step 41a 1st planting hopper (planting device)
41b 2nd planting hopper (planting device)
41c 3rd planting hopper (planting device)
41d 4th planting hopper (planting device)
42 Seedling supply table (seedling supply device)
51 Non-slip step (non-slip member)
54 Extension step 59 Rolling cylinder (rolling adjustment member)
62 Tilt adjustment lever (tilt adjustment member)
100a Outer suppression device (suppression device, outer suppression device)
100b Inner suppression device (suppression device, outer suppression device)
100c inner suppression device (suppression device, outer suppression device)
100d outer suppression device (suppression device, outer suppression device)

Claims (6)

車体(10)に苗を圃場に植え付ける複数の植付装置(41a,41b,41c,41d)と、該複数の植付装置(41a,41b,41c,41d)が植え付けた苗の周囲の土を各々鎮圧する鎮圧装置(100a,100b,100c,100d)を設けた移植機において、
前記車体(10)に作業者の乗り降りを補助する乗り降り補助部材(26)を設け、該乗り降り補助部材(26)に前記植付装置(41a,41b,41c,41d)による苗の植付位置の圃場面を押圧する押圧装置(25)を設け、
該押圧装置(25)は、前記車体(10)の下部に形成される空間部に配置されることを特徴とする移植機。
A plurality of planting devices (41a, 41b, 41c, 41d) for planting seedlings in the field on the vehicle body (10) and soil around the seedlings planted by the plurality of planting devices (41a, 41b, 41c, 41d). In a transplant machine provided with a suppression device (100a, 100b, 100c, 100d) for suppressing each
The vehicle body (10) is provided with a boarding / alighting assisting member (26) that assists the worker in getting on / off, and the boarding / alighting assisting member (26) is located at a position where seedlings are planted by the planting device (41a, 41b, 41c, 41d). A pressing device (25) for pressing the field scene is provided.
The pressing device (25) is a porting machine characterized in that it is arranged in a space formed in a lower portion of the vehicle body (10).
前記車体(10)の機体前側にバンパー(24)を設け、前側の左右両側には転輪(11)を各々設け、該左右の転輪(11)の後部には走行輪(12)に伝動する走行伝動ケース(21)を各々設け、該左右の走行伝動ケース(21)のうち少なくとも一方に左右位置を変更させる車輪間調節機構を設け、
前記押圧装置(25)は、乗り降り補助部材(26)に回動自在に装着する押圧アーム(27)と、該押圧アーム(27)に回転可能に装着される押圧ローラ(28)で構成し、
該押圧ローラ(28)は、前記バンパー(24)と車輪間調節機構の前後の空間部に配置されると共に、側面視で前記転輪(11)と重複する位置に配置される構成としたことを特徴とする請求項1に記載の移植機。
Bumpers (24) are provided on the front side of the vehicle body (10), rolling wheels (11) are provided on both left and right sides of the front side, and transmission is transmitted to traveling wheels (12) at the rear of the left and right rolling wheels (11). Each of the traveling transmission cases (21) is provided, and at least one of the left and right traveling transmission cases (21) is provided with an inter-wheel adjustment mechanism for changing the left-right position.
The pressing device (25) includes a pressing arm (27) that is rotatably attached to the boarding / alighting assisting member (26) and a pressing roller (28) that is rotatably attached to the pressing arm (27).
The pressing roller (28) is arranged in the space in front of and behind the bumper (24) and the wheel-to-wheel adjustment mechanism, and is arranged at a position overlapping the rolling wheels (11) in a side view. The transplant machine according to claim 1.
前記植付装置(41a,41b,41c,41d)は、車体(10)の左右一側に苗を植え付ける左右一側植付装置(41a,41b)と、車体(10)の左右他側に苗を植え付ける左右他側植付装置(41c,41d)で構成し、
前記押圧装置(25)は、前記車体(10)の機体前側の左右に間隔を空けて各々設け、
前記車体(10)の移動を規制する接地状態と、移動を規制しない収納状態に切替可能なスタンド(30)を設け、該スタンド(30)は、収納状態では前記左右の押圧装置(25,25)の左右間隔部に位置することを特徴とする請求項1または2に記載の移植機。
The planting devices (41a, 41b, 41c, 41d) include a left and right one-sided planting device (41a, 41b) for planting seedlings on one left and right side of the vehicle body (10) and seedlings on the left and right other sides of the vehicle body (10). It is composed of left and right other side planting devices (41c, 41d) for planting.
The pressing device (25) is provided on the left and right sides of the front side of the vehicle body (10) at intervals.
A stand (30) that can be switched between a grounding state that regulates the movement of the vehicle body (10) and a storage state that does not restrict movement is provided, and the stand (30) is the left and right pressing devices (25, 25) in the stored state. The transplanting machine according to claim 1 or 2, wherein the transplanting machine is located at a left-right spacing portion of).
前記スタンド(30)は、前記左右の押圧装置(25)の左右間に回動可能に設ける回動ステー(31)に、スタンドロッド(32)を機体後方に向けて装着すると共に、前記左右の押圧装置(25)よりも機体後側位置で該スタンドロッド(32)の後部に接地体(33)を設けて構成し、
前記回動ステー(31)には、作業者が把持して回動操作する切欠孔(31a)を形成したことを特徴とする請求項3に記載の移植機。
In the stand (30), a stand rod (32) is attached to a rotating stay (31) rotatably provided between the left and right of the left and right pressing devices (25), and the stand rod (32) is attached to the rear of the machine body. A grounding body (33) is provided at the rear of the stand rod (32) at a position on the rear side of the machine body with respect to the pressing device (25).
The transplanting machine according to claim 3, wherein the rotating stay (31) is formed with a notch hole (31a) that is gripped and rotated by an operator.
前記乗り降り補助部材(26)の上部に作業時に作業者が搭乗する搭乗ステップ(34)を設け、該搭乗ステップ(34)に滑り止め部材(51)を設け、
前記搭乗ステップ(34)及び滑り止め部材(51)の機体後側で且つ機体外側には、前記車体(10)の機体外側に張り出す延設ステップ(54)を形成することを特徴とする請求項1から4のいずれか1項に記載の移植機。
A boarding step (34) on which an operator boarded during work is provided on the upper part of the boarding / alighting assisting member (26), and a non-slip member (51) is provided on the boarding step (34).
A claim characterized by forming an extension step (54) of the boarding step (34) and the non-slip member (51) on the rear side of the machine body and on the outside of the machine body so as to project to the outside of the body of the vehicle body (10). Item 4. The transplant machine according to any one of Items 1 to 4.
前記車体(10)の左右傾斜角度を変更するローリング調節部材(59)を設け、
前記車体(10)の後部に操縦ユニット(16)を設け、該操縦ユニット(16)の前側に支持フレーム(17)を設け、該支持フレーム(17)に前記ローリング調節部材(59)を作動させて車体(10)の左右傾斜角度を調節する傾斜調節部材(62)を設けたことを特徴とする請求項1から5のいずれか1項に記載の移植機。
A rolling adjusting member (59) for changing the left-right tilt angle of the vehicle body (10) is provided.
A control unit (16) is provided at the rear of the vehicle body (10), a support frame (17) is provided on the front side of the control unit (16), and the rolling adjusting member (59) is operated on the support frame (17). The transplant machine according to any one of claims 1 to 5, wherein an inclination adjusting member (62) for adjusting a left-right inclination angle of the vehicle body (10) is provided.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11196625A (en) * 1992-02-28 1999-07-27 Yanmar Agricult Equip Co Ltd Vegetable transplanter
JP2007000080A (en) * 2005-06-23 2007-01-11 Iseki & Co Ltd Seedling transplanter
JP2009284855A (en) * 2008-05-30 2009-12-10 Iseki & Co Ltd Seedling planter
JP2012090595A (en) * 2010-10-28 2012-05-17 Iseki & Co Ltd Transplanter
JP2012157326A (en) * 2011-02-02 2012-08-23 Iseki & Co Ltd Transplanter
JP2013106580A (en) * 2011-11-22 2013-06-06 Iseki & Co Ltd Seedling-planting implement
JP2019024415A (en) * 2017-07-31 2019-02-21 井関農機株式会社 Transplanter

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11196625A (en) * 1992-02-28 1999-07-27 Yanmar Agricult Equip Co Ltd Vegetable transplanter
JP2007000080A (en) * 2005-06-23 2007-01-11 Iseki & Co Ltd Seedling transplanter
JP2009284855A (en) * 2008-05-30 2009-12-10 Iseki & Co Ltd Seedling planter
JP2012090595A (en) * 2010-10-28 2012-05-17 Iseki & Co Ltd Transplanter
JP2012157326A (en) * 2011-02-02 2012-08-23 Iseki & Co Ltd Transplanter
JP2013106580A (en) * 2011-11-22 2013-06-06 Iseki & Co Ltd Seedling-planting implement
JP2019024415A (en) * 2017-07-31 2019-02-21 井関農機株式会社 Transplanter

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