JP4930240B2

JP4930240B2 - Seedling transplanter

Info

Publication number: JP4930240B2
Application number: JP2007188454A
Authority: JP
Inventors: 塩崎　　孝秀; 和弘竹川
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2007-07-19
Filing date: 2007-07-19
Publication date: 2012-05-16
Anticipated expiration: 2027-07-19
Also published as: JP2009022210A

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems of conventional techniques, wherein taking-out operation of granules is complex, because the granules in a storing part cannot be taken out from a lid side, by tilting downward each of a fertilizing device and a chemical-distributing device, and the taking out through another discharging passage has to be carried out, while rotating a send-out part, or taking out by detaching the device and inverting the storage part. <P>SOLUTION: The granule-discharging device 18 comprising the granule-storing part 15 for storing the granules such as the chemicals, the sending-out part 17 for sending out the granules by a prescribed amount, and the lid part 16 installed in the granule-storing part so as to be opened and closed, is constituted so that the granule-discharging device 18 may be turned so as to be switched to a stand posture at distributing operation and a falling posture at non-distributing operation, and when the lid part 16 of the granule-storing part 15 is opened, the granule-discharging device 18 may take a posture for receiving the granules. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

この発明は、苗タンク上のマット苗に薬剤等の粉粒体を散布する粉粒体吐出装置を備える苗移植機に関する。 The present invention relates to a seedling transplanter provided with a powder body discharge device for spraying powder bodies such as drugs on mat seedlings on a seedling tank.

従来、特許文献１に示されているように、田植機の車体上には肥料貯溜部と繰出部と肥料貯溜部の蓋部とを備えた施肥装置が設置され、そして、この施肥装置は、メンテナンスを容易にするため前方に向けて傾倒させることができるようになっている。 Conventionally, as shown in Patent Document 1, a fertilizer application device including a fertilizer storage part, a feeding part, and a cover part of a fertilizer storage part is installed on the body of a rice transplanter. It can be tilted forward to facilitate maintenance.

また、特許文献２に示されているように、苗タンクの上方には、該苗タンク内に装填されたマット苗に薬剤を散布する薬剤散布装置が装備されている。
特開平８−３１０２５７号公報特開２００２−２７８９５号公報 Moreover, as shown in Patent Document 2, a drug spraying device for spraying a drug onto a mat seedling loaded in the seedling tank is provided above the seedling tank.
JP-A-8-310257 JP 2002-27895 A

上記従来技術のものでは、施肥装置や薬液散布装置のいづれも下向きに傾倒させて貯溜部内の粉粒体を蓋側から取り出すことができないものであるため、繰出部を回転させながら別の排出経路を経て取り出すか、装置を取り外して貯溜部を逆向きにして取り出さなければならず、取り出し操作が煩わしくなる問題がある。 In the above-mentioned prior art, since neither the fertilizer application device nor the chemical solution spraying device can be tilted downward so that the granular material in the reservoir cannot be taken out from the lid side, another discharge route is provided while rotating the feeding portion. There is a problem that the take-out operation becomes troublesome because it has to be taken out through the process or removed from the apparatus with the storage part turned in the reverse direction.

本発明は、苗移植機に粉粒体吐出装置を設けるにあたり、苗葉の絡まりや苗滑り、苗切断の発生を防ぎ、粉粒体吐出装置自体の破損を防止し、粉粒体の飛散を防止し、コンパクトにし、残留する粉粒体貯溜部（１５）内の粉粒体を容易に且つ確実に取り出すことができるようにすることを課題とする。 The present invention prevents the occurrence of seedling entanglement, seedling slipping and seedling cutting when the seedling transplanting machine is provided with the powder discharging apparatus, prevents damage to the powder discharging apparatus itself, and prevents scattering of the powder. It is an object of the present invention to prevent, make compact, and to easily and reliably take out the remaining granular material in the granular material reservoir (15).

この発明は、上記課題を解決すべく次のような技術的手段を講じた。
すなわち、請求項１記載の本発明は、車体（１）の後方に昇降可能な苗植付部（６）を装備し、該苗植付部（６）には、マット苗を載せて左右に往復動し苗を一株分づつ各条の苗取出口（１１ｂ）に供給すると共に横一列の苗を全て苗取出口（１１ｂ）に供給すると苗送りベルト（１１ｃ）により苗を下方に移送する苗タンク（１１）と、一株分の苗を切取って土中に植込む苗植付装置（１３）と、苗植付面を滑走しながら整地するフロート（１４Ｌ，１４Ｒ，１４Ｃ）を備えた苗移植機において、苗タンク（１１）をマット苗毎に仕切る仕切突条部（１１ｄ）上に沿わせて支持フレーム（３８）を設け、支持フレーム（３８）に対して支軸（３６）を支点として回動可能に支持アーム（３７）を設け、薬剤等の粉粒体を貯溜する粉粒体貯溜部（１５）と、粉粒体を所定量づつ繰り出す繰出部（１７）と、前記粉粒体貯溜部に開閉可能に設けられた蓋部（１６）と、繰出部（１７）を駆動するモータ（１９）とからなる粉粒体吐出装置（１８）を、支持アーム（３７）に支持して散布作業時の起立姿勢と非散布作業時の倒伏姿勢とに切替回動可能に設け、粉粒体吐出装置（１８）を前記倒伏姿勢に切り替えたとき、蓋部（１６）を開くと該蓋部（１６）が粉粒体貯溜部（１５）の供給口から流れ落ちる粉粒体を受け入れる姿勢となる構成とした苗移植機とする。 In order to solve the above problems, the present invention has taken the following technical means.
That is, the present invention according to claim 1 is equipped with a seedling planting part (6) that can be moved up and down behind the vehicle body (1), and mat seedlings are placed on the seedling planting part (6) to the left and right. When the seedlings are reciprocated to supply the seedlings to the seedling outlets (11b) of each row one by one and all the seedlings in a horizontal row are supplied to the seedling outlets (11b), the seedlings are transferred downward by the seedling feeding belt (11c). Equipped with a seedling tank (11), a seedling planting device (13) that cuts out one stock of seedlings and transplants it into the soil, and a float (14L, 14R, 14C) for leveling while sliding on the seedling planting surface In the seedling transplanting machine, a support frame (38) is provided along the partition protrusion (11d) for partitioning the seedling tank (11) for each mat seedling, and the support shaft (36) is supported with respect to the support frame (38). the pivotable support arm (37) is provided as a fulcrum, granular material reservoir for reserving the granular material of the drug or the like (15), a feeding part (17) for feeding the granular material by a predetermined amount, a lid part (16) provided to the powder storage part so as to be openable and closable, and a motor for driving the feeding part (17) ( 19) consisting of a granular material discharge device (18), provided to be switched pivots supporting the support arm (37) and upright position during spraying operations and horizontal position during non-spraying operation, granular material When the discharge device (18) is switched to the lying posture, when the lid (16) is opened, the lid (16) is in a posture to receive the granular material that flows down from the supply port of the granular material reservoir (15). The seedling transplanter is configured.

粉粒体の散布作業を行う作業時には、粉粒体吐出装置（１８）を所定の起立姿勢の状態とし、繰出部（１７）から貯溜部（１５）内の粉粒体を一定量づつ繰り出しながらマット苗に散布する。作業が終って貯溜部（１５）内に残った粉粒体を取り出す時には、粉粒体吐出装置（１８）を起立姿勢から倒伏姿勢に切り替える。そして、貯溜部（１５）の蓋部（１６）を開けると、この蓋部（１６）は上向きの粉粒体受入れ姿勢となるため、残留している貯溜部内の粉粒体を蓋部内へ容易に取り入れることができる。At the time of carrying out the dusting operation, the powder discharging device (18) is in a predetermined standing posture, and the powder in the reservoir (15) is fed out from the feeding unit (17) by a certain amount. Apply to mat seedlings. When taking out the powder remaining in the reservoir (15) after the work, the powder discharger (18) is switched from the standing posture to the lying posture. Then, when the lid (16) of the reservoir (15) is opened, the lid (16) is in an upwardly accepting posture for powder particles, so that the remaining particles in the reservoir can be easily put into the lid. Can be incorporated into.

また、請求項２記載の本発明は、繰出部（１７）の繰出口部（１７ｂ）は、ブラシ（１７ｃ）取付側とは反対側の下部がブラシ（１７ｃ）取付側よりも下方に長い構成とした請求項１に記載の苗移植機とする。 Further, the present invention according to claim 2 is configured such that the feeding port portion (17b) of the feeding portion (17) has a lower portion on the opposite side to the brush (17c) mounting side that is longer downward than the brush (17c) mounting side. The seedling transplanter according to claim 1.

また、請求項３記載の本発明は、繰出部（１７）の繰出口部（１７ｂ）に連設する粉粒体吐出筒（３９）を、粉粒体吐出装置（１８）の保持枠（４０）の中に収納できる構成とした請求項１又は請求項２に記載の苗移植機とする。 Moreover, this invention of Claim 3 is a holding | maintenance frame (40) of the granular material discharge cylinder (39) provided in a row by the delivery part (17b) of a feeding part (17). The seedling transplanting machine according to claim 1 or 2, wherein the seedling transplanting machine is configured so as to be housed in the bracket.

また、請求項４記載の本発明は、倒伏姿勢に切り替えたとき、粉粒体吐出装置（１８）の後部がフロート（１４Ｌ，１４Ｒ，１４Ｃ）の後部と略同一位置若しくはフロート（１４Ｌ，１４Ｒ，１４Ｃ）の後部よりも稍前方に位置する構成とした請求項１から請求項３の何れか１項に記載の苗移植機とする。 Further, according to the fourth aspect of the present invention, when the powder body discharge device (18) is switched to the lying posture, the rear portion of the powder body discharge device (18) is substantially at the same position as the rear portion of the float (14L, 14R, 14C) or the float (14L, 14R, 14C) The seedling transplanter according to any one of claims 1 to 3, wherein the seedling transplanter is configured to be positioned in front of the heel from the rear part .

また、請求項５記載の本発明は、粉粒体吐出装置（１８）を倒伏姿勢に切り替えたとき、粉粒体貯溜部（１５）の供給口が下向きとなり、蓋部（１６）の容積は、粉粒体貯溜部（１５）の容積と略同一若しくはそれ以上に大きく設定した請求項１から請求項４の何れか１項に記載の苗移植機とする。 Further, according to the fifth aspect of the present invention, when the granular material discharge device (18) is switched to the lying posture, the supply port of the granular material reservoir (15) faces downward, and the volume of the lid (16) is The seedling transplanter according to any one of claims 1 to 4, wherein the seedling transplanter is set to be substantially the same as or larger than the volume of the granular material reservoir (15).

貯溜部（１５）内に粉粒体が最大入っていても、簡単な操作で蓋部（１６）内へ確実に取り出すことができる。 Even if the powder or granular material is contained in the reservoir (15) at the maximum, it can be reliably taken out into the lid (16) by a simple operation.

以上要するに、請求項１の本発明によれば、苗タンク（１１）をマット苗毎に仕切る仕切突条部（１１ｄ）上に沿わせて支持フレーム（３８）を設けることにより、仕切突条部（１１ｄ）より内側に離れた位置に設ける場合のような苗葉の絡まりや苗滑り、苗切断の発生を防ぐことができる。また、粉粒体貯溜部（１５）内に残った粉粒体を取り出す時には、粉粒体吐出装置（１８）を起立姿勢から倒伏姿勢に切り替えて粉粒体貯溜部（１５）の蓋部（１６）を開けると、蓋部（１６）が上向きの粉粒体受入れ姿勢となるため、残留している粉粒体貯溜部（１５）内の粉粒体を蓋部（１６）内へ容易に取り出すことができる。 In short, according to the present invention of claim 1, the partition ridge is provided by providing the support frame (38) along the partition ridge (11d) for partitioning the seedling tank (11) for each mat seedling. (11d) It is possible to prevent entanglement of seedlings, seedling slipping, and seedling cutting as in the case of being provided at a position farther inside. Moreover, when taking out the granular material remaining in the granular material reservoir (15), the granular material discharge device (18) is switched from the standing posture to the lying posture, and the lid portion of the granular material reservoir (15) ( When the 16) is opened, the lid (16) is in the upward-facing posture for receiving the granular material, so that the remaining granular material in the granular material reservoir (15) can be easily put into the lid (16). It can be taken out .

請求項２の本発明によれば、請求項１の本発明の効果に加えて、繰出部（１７）の繰出口部（１７ｂ）は、ブラシ（１７ｃ）取付側とは反対側の下部がブラシ（１７ｃ）取付側よりも下方に長い構成としたので、粉粒体の飛散を防止できる。 According to the second aspect of the present invention, in addition to the effect of the first aspect of the present invention, the feeding portion (17b) of the feeding portion (17) has a lower portion on the opposite side to the brush (17c) mounting side. (17c) Since the structure is longer than the attachment side, scattering of the granular material can be prevented.

請求項３の本発明によれば、請求項１又は請求項２の本発明の効果に加えて、繰出部（１７）の繰出口部（１７ｂ）に連設する粉粒体吐出筒（３９）を、粉粒体吐出装置（１８）の保持枠（４０）の中に収納できる構成とすることで、コンパクトになる。 According to the present invention of claim 3, in addition to the effect of the present invention of claim 1 or 2, in addition to the effect of the present invention of claim 1 or claim 2, the granular material discharge cylinder (39) connected to the outlet portion (17b) of the feeding portion (17) It becomes compact by setting it as the structure which can be accommodated in the holding frame (40) of a granular material discharge apparatus (18).

請求項４の本発明によれば、請求項１から請求項３の何れか１項の本発明の効果に加えて、倒伏姿勢に切り替えたとき、粉粒体吐出装置（１８）の後部がフロート（１４Ｌ，１４Ｒ，１４Ｃ）の後部と略同一位置若しくはフロート（１４Ｌ，１４Ｒ，１４Ｃ）の後部よりも稍前方に位置する構成としたので、粉粒体吐出装置（１８）自体の破損を防止できる。 According to the present invention of claim 4, in addition to the effect of the present invention of any one of claims 1 to 3, the rear part of the powder and particle ejector (18) is floated when switched to the lying posture. (14L, 14R, 14C) The rear part (14L, 14R, 14C) substantially the same position, or because it is configured to be located in front of the float (14L, 14R, 14C), so that damage to the granular material discharge device (18) itself can be prevented .

請求項５の本発明によれば、請求項１から請求項４の何れか１項の本発明の効果に加えて、蓋部（１６）の容積を粉粒体貯溜部（１５）の容積と略同一若しくはそれ以上に大きく設定してあるので、粉粒体貯溜部（１５）内に粉粒体が最大入っていても、簡単な操作で蓋部（１６）内へ確実に取り出すことができる。 According to the present invention of claim 5, in addition to the effect of the present invention of any one of claims 1 to 4, the volume of the lid (16) is set to the volume of the granular material reservoir (15). Since it is set to be substantially the same or larger than that, even if the maximum amount of powder is contained in the powder storage part (15), it can be reliably taken out into the cover (16) by a simple operation. .

この発明の実施例を図面に基づき説明する。
図１及び図２は、苗移植機の一例として６条植田植機を示すものであり、車体１の前後には走行車輪としての左右一対の前輪２，２及び後輪３，３が架設されている。車体上前部には操作ボックス４及びステアリングハンドル５等を有する操縦装置が設置され、また、車体後方部には昇降可能な苗植付部６が装備されている。操縦装置の後側に運転席９が設置され、運転席の下側に田植機の各部に動力を伝達するエンジンＥが搭載されている。 An embodiment of the present invention will be described with reference to the drawings.
FIGS. 1 and 2 show a 6-row Ueda transplanter as an example of a seedling transplanter, and a pair of left and right front wheels 2, 2 and rear wheels 3, 3 as a traveling wheel are installed in front of and behind a vehicle body 1. ing. A steering device having an operation box 4 and a steering handle 5 is installed at the front upper part of the vehicle body, and a seedling planting part 6 that can be moved up and down is provided at the rear part of the vehicle body. A driver's seat 9 is installed on the rear side of the control device, and an engine E that transmits power to each part of the rice transplanter is mounted below the driver's seat.

苗植付部６は、車体の後部に昇降リンク機構７を介して昇降可能に装着され、昇降用油圧シリンダ８の伸縮作動により昇降する構成である。昇降用油圧シリンダ８を制御する昇降用油圧バルブＶは、機体右側部のステップフロアの下方に設けられている。 The seedling planting part 6 is mounted on the rear part of the vehicle body through a lifting link mechanism 7 so as to be able to be lifted and lowered by a telescopic operation of the lifting hydraulic cylinder 8. The lifting hydraulic valve V that controls the lifting hydraulic cylinder 8 is provided below the step floor on the right side of the machine body.

また、この苗植付部６には、マット苗を載せて左右に往復動し苗を一株分づつ各条における前板１１ａの苗取出口１１ｂ，…に供給すると共に横一列の苗を全て苗取出口１１ｂ，…に供給すると苗送りベルト１１ｃ，…により苗を下方に移送する苗タンク１１、先端が閉ループ軌跡Ｐを描いて作動する苗植付具１２で一株分の苗を切取って土中に植込む６条分の苗植付装置１３，１３，１３、苗植付面を滑走しながら整地するフロート（サイドフロート）１４Ｌ，１４Ｒ、センタフロ−ト１４Ｃ等を備えた構成としている。 In addition, the seedling planting section 6 puts mat seedlings and reciprocates left and right to supply the seedlings to the seedling outlets 11b,... When supplied to the seedling outlet 11b, ..., a seedling tank 11 for transferring the seedling downward by a seedling feeding belt 11c, ... 6 seedling planting devices 13, 13, 13 for planting in the soil, floats (side floats) 14 L, 14 R for leveling while sliding on the seedling planting surface, a center float 14 C, etc. .

走行車体１の前部側にミッションケース２０が配置され、そのミッションケース２０の左右側面部から前輪アクスルケースが側方に延び、その左右両端に変向可能に設けた前輪ファイナルケース２１に前輪２，２が回転自在に軸支されている。また、ミッションケース２０の背面部にメインフレーム２２の前端部が固着されており、そのメインフレーム２２の後端部から左右側方に延びるリヤフレームの先端部に固定して設けた後輪伝動ケース２３に後輪３，３が回転自在に支承されている。 A transmission case 20 is disposed on the front side of the traveling vehicle body 1, and a front wheel axle case extends laterally from the left and right side surfaces of the transmission case 20. , 2 are rotatably supported. Further, the rear end of the transmission case 20 is fixed to the rear end of the rear frame extending from the rear end of the main frame 22 to the left and right sides. 23, the rear wheels 3 and 3 are rotatably supported.

原動機となるエンジンＥからの回転動力は、ミッションケース２０への入力伝動機構として、エンジン出力プーリ２４からベルト２５を介して油圧式無段変速装置（ＨＳＴ）２６の入力軸に伝えられ、この入力軸から油圧ポンプを駆動し、更に、ＨＳＴ２６の出力軸からミッションケ−ス２０内のミッション入力軸に伝達されるようになっている。該ケ−ス２０内のミッションに伝達された回転動力は、ケ−ス２０内のトランスミッションにて変速された後、走行動力と外部取出動力とに分岐して取り出される。そして、走行動力は、前輪２，２及び後輪伝動軸２７から後輪伝動ケ−ス２３のギヤ機構を介して後輪３，３を駆動する。また、外部取出動力は、ミッションケース２０からの出力伝動機構として、ＰＴＯ出力軸、植付クラッチケース２８内に設けるマイコン制御可能な植付モータ３０等を介して植付伝動軸３１に伝達され、更に、植付伝動軸３１によって苗植付部６へ動力伝動されるようになっている。 Rotational power from the engine E as a prime mover is transmitted as an input transmission mechanism to the transmission case 20 from the engine output pulley 24 to the input shaft of a hydraulic continuously variable transmission (HST) 26 via a belt 25. The hydraulic pump is driven from the shaft, and is further transmitted from the output shaft of the HST 26 to the mission input shaft in the mission case 20. The rotational power transmitted to the mission in the case 20 is shifted by the transmission in the case 20, and then branched into traveling power and external power to be taken out. The traveling power drives the rear wheels 3 and 3 from the front wheels 2 and 2 and the rear wheel transmission shaft 27 through the gear mechanism of the rear wheel transmission case 23. Further, the external take-out power is transmitted to the planting transmission shaft 31 via the PTO output shaft, the planting motor 30 that can be controlled by the microcomputer provided in the planting clutch case 28 as an output transmission mechanism from the mission case 20, Further, power is transmitted to the seedling planting section 6 by the planting transmission shaft 31.

前記ＨＳＴ２６は、操作ボックス４の側部に設けられた変速レバ−３３の前後方向の操作で駆動し、機体の前進及び後進制御を司るように構成され、該変速レバー３３を前方に向けて操作するほど前進走行速度は速くなるようになっている。 The HST 26 is configured to be driven by a forward / backward operation of a shift lever 33 provided on the side of the operation box 4 and to control forward and backward movement of the fuselage. The HST 26 is operated with the shift lever 33 facing forward. The forward travel speed becomes faster the more you do it.

また、走行速度に対する苗植付具１２の作動周期を変更する株間変更手段が備えられ、操作ボックス４の下方に設けられた株間変更レバー３５の操作で株間変更を行うようにしている。 Further, a stock change means for changing the operating cycle of the seedling planting tool 12 with respect to the traveling speed is provided, and the stock change is performed by operating the stock change lever 35 provided below the operation box 4.

苗タンク１１のマット苗の載置面と対向する位置には、薬剤等の粉粒体を貯溜する粉粒体貯溜部１５と粉粒体を所定量づつ繰り出す繰出部１７と前記粉粒体貯溜部１５に開閉可能に設けられた蓋部１６とからなる粉粒体吐出装置１８が配設されている。粉粒体吐出装置１８は、支軸３６を支点として回動可能な支持アーム３７に装着支持され、散布作業時の起立姿勢と非散布作業時の倒伏姿勢とに切替変更できる構成としている。粉粒体吐出装置を倒伏姿勢に切り替えた時には、粉粒体貯溜部１５の供給口が下向きとなって粉粒体が流れ落ちるようになっており、そして、この粉粒体貯溜部１５に対しヒンジ１６ａを介して揺動開閉可能な蓋部１６を開けると、この蓋部が流れ落ちる粉粒体を受け入れできるように上向き姿勢となる構成としている。また、この蓋部１６の容積は、貯溜部１５の容積と略同一若しくは貯溜部より大きく設定している。 At a position facing the mat seedling placement surface of the seedling tank 11, a powder storage part 15 for storing powders such as medicines, a feeding part 17 for feeding the powders by a predetermined amount, and the powder storages The granular material discharge apparatus 18 which consists of the cover part 16 provided in the part 15 so that opening and closing is possible is arrange | positioned. The granular material discharge device 18 is mounted and supported on a support arm 37 that can be rotated with a support shaft 36 as a fulcrum, and can be switched between a standing posture during a spraying operation and a lying posture during a non-spraying operation. When the granular material discharge device is switched to the lying posture, the supply port of the granular material storage unit 15 faces downward so that the granular material flows down, and the hinge is connected to the granular material storage unit 15. When the lid 16 that can be swingably opened and closed is opened via 16a, the lid is configured to be in an upward posture so that the powder particles that flow down can be received. Further, the volume of the lid portion 16 is set to be substantially the same as the volume of the storage portion 15 or larger than the storage portion.

粉粒体吐出装置１８を倒伏姿勢に切り替えた時、吐出装置の後部がフロート１４の後部より略同一位置若しくはそれよりも稍前方に位置するよう構成することで、粉粒体吐出装置自体の破損を防止するようにしている。 When the granular material discharge device 18 is switched to the lying posture, the rear portion of the discharge device is configured to be positioned substantially at the same position as the rear portion of the float 14 or in front of it, so that the granular material discharge device itself is damaged. Try to prevent.

また、粉粒体吐出装置１８を支持する支持フレーム３８は、苗タンク１１のマット苗毎に仕切られた仕切突条部１１ｄ上に沿わせて設けることにより、仕切突条部より内側に離れた位置に設ける場合のように苗葉の絡まりや苗滑り、苗切断の発生を防ぐことができる。 Further, the support frame 38 that supports the granular material discharge device 18 is provided along the partition ridge portion 11d partitioned for each mat seedling of the seedling tank 11, so that it is separated from the partition ridge portion on the inner side. It is possible to prevent the entanglement of seedlings, seedling slipping, and seedling cutting as in the case of being provided at the position.

繰出部１７の繰出ローラ１７ａはモータ１９によって回転駆動すべく連動構成している。モータ１９は、苗タンク１１の苗送りベルト１１ｃの回転に連動して駆動される。 The feeding roller 17 a of the feeding unit 17 is interlocked to be rotationally driven by a motor 19. The motor 19 is driven in conjunction with the rotation of the seedling feeding belt 11 c of the seedling tank 11.

繰出部１７の繰出口部１７ｂは、ブラシ１７ｃ取付側とは反対側の下部がブラシ取付側よりＬの距離だけ下方に長く構成して、粉粒体の飛散を防止するように構成している。繰出部１７の繰出口部に連設する粉粒体吐出筒３９は、吐出装置１８の保持枠４０の中に収納するように構成することで、コンパクトな構成とすることができる。 The feed outlet portion 17b of the feed portion 17 is configured such that the lower portion on the opposite side to the brush 17c mounting side is configured to be longer downward by a distance L than the brush mounting side to prevent the powder particles from scattering. . The granular material discharge cylinder 39 connected to the outlet portion of the supply portion 17 is configured to be housed in the holding frame 40 of the discharge device 18, whereby a compact configuration can be achieved.

次に、図６に示す粉粒体吐出装置（薬剤散布装置）の他の構成例について説明する。
薬剤散布装置１８を駆動する苗送り検出ローラ４３は、苗タンク１１の苗送りベルト１１ｃの上部に設けた構成としている。検出ローラ４３から駆動ベルト４４を介して繰出部１７の繰出ローラ１７ａを駆動する。苗重量の自然落下のみでは検出ローラへの回動バラツキが大きくなるため、苗強制送り部に検出ローラを設けることによって回動バラツキを解消でき検出性能を高めることができる。 Next, another configuration example of the granular material discharge device (medicine spraying device) shown in FIG. 6 will be described.
The seedling feed detection roller 43 that drives the medicine spraying device 18 is configured to be provided above the seedling feed belt 11 c of the seedling tank 11. The feeding roller 17 a of the feeding unit 17 is driven from the detection roller 43 through the driving belt 44. Since the variation in rotation to the detection roller is increased only by the natural fall of the seedling weight, the variation in rotation can be eliminated by providing the detection roller in the seedling forced feeding portion, and the detection performance can be improved.

また、上記薬剤散布装置１８は、苗タンク上のマット苗の浮き上がりを阻止する苗押え杆４５に支持ステー４６を介して支持する構成としている。これによれば、苗押え杆４５は上端側の支点Ｐを回動支点として上下動し苗押え高さ調節を行うため、マット苗の床土条件により苗送り検出位置を苗押え高さ調節と連動させることができ、散布性能を安定させることができる。 Further, the medicine spraying device 18 is configured to be supported by a seedling presser foot 45 for preventing the mat seedling from floating on the seedling tank via a support stay 46. According to this, the seedling presser foot 45 moves up and down with the upper end side fulcrum P as a pivotal fulcrum and adjusts the seedling presser height, so that the seedling feed detection position is adjusted to the seedling presser height adjustment according to the floor soil condition of the mat seedling. It can be linked and the spraying performance can be stabilized.

なお、上記検出ローラ４３は、１条単位毎、或は２条単位毎に設けることができるが、各検出ローラを検出位置と非検出位置とにそれぞれ独立的に位置変更できるように構成することもできる。これによれば、通常は田植機の２条単位畦クラッチと連動できるが、１条単位でも条止めを可能とすることができる。 The detection roller 43 can be provided for each single stripe unit or for every two stripe units, and each detection roller can be independently changed to a detection position and a non-detection position. You can also. According to this, normally, it can be interlocked with the two-row unit hook clutch of the rice transplanter, but it can also be stopped even in the single-row unit.

図７、図８に示すように、苗の送りを検出して薬剤散布する検出ローラ４３を苗押え杆４５の近傍に設けることにより、マット苗が苗押え杆で押えられた状態で送られるので、苗送り作用が確実となり、苗送り検出性能の向上を図ることができる。 As shown in FIGS. 7 and 8, by providing a detection roller 43 for detecting the feed of the seedling and spraying the medicine in the vicinity of the seedling presser foot 45, the mat seedling is sent in a state of being pressed by the seedling presser foot 杆. The seedling feeding action is ensured, and the seedling feeding detection performance can be improved.

また、図８に示すように、検出ローラ４３を苗押え杆４５の左右両側近傍に股がった状態で架設することにより、苗送り検出性能がより向上することになる。 In addition, as shown in FIG. 8, the seedling feed detection performance is further improved by laying the detection roller 43 in a crotch state in the vicinity of the left and right sides of the seedling presser foot 45.

更に、検出ローラ４３は苗押え杆４５に設けた分草体４７の後方位置に設けることにより、分草後のマット苗の送りを検出するので苗送り検出性能が一段と向上する。 Further, by providing the detection roller 43 at a position behind the weed body 47 provided on the seedling presser foot 45, the feed of the mat seedling after weeding is detected, so that the seedling feed detection performance is further improved.

田植機の側面図Side view of rice transplanter 田植機の平面図Top view of rice transplanter 粉粒体吐出装置を備えた田植機要部の側面図Side view of the main part of rice transplanter equipped with powder and particle discharging device 粉粒体吐出装置の要部の背面図Rear view of the main parts of the powder ejection device 同上要部の側断面図Side sectional view of the main part 別例の粉粒体吐出装置を備えた田植機の側面図Side view of rice transplanter equipped with another example 粉粒体吐出装置の要部の斜視図Perspective view of the main part of the powder and particle ejection device 検出ローラと苗押え杆との関係を示す背面図Rear view showing relationship between detection roller and seedling presser foot

１：車体、６：苗植付部、１１：苗タンク、１１ｂ：苗取出口、１１ｃ：苗送りベルト、１１ｄ：仕切突条部、１３：苗植付装置、１４Ｌ，１４Ｒ，１４Ｃ：フロート、１５：粉粒体貯溜部、１６：蓋部、１７：繰出部、１７ｂ：繰出口部、１７ｃ：ブラシ、１８：粉粒体吐出装置、１９：モータ、３６：支軸、３７：支持アーム、３８：支持フレーム、３９：粉粒体吐出筒、４０：保持枠 DESCRIPTION OF SYMBOLS 1: Vehicle body, 6: Seedling planting part, 11: Seedling tank, 11b: Seedling outlet, 11c: Seedling feeding belt, 11d: Partitioning ridge part, 13: Seedling planting device, 14L, 14R, 14C: Float, 15: Powder and particle storage part, 16: Cover part, 17: Feeding part, 17b: Feeding-out part, 17c: Brush, 18: Powder and particle discharging apparatus, 19: Motor, 36: Support shaft, 37: Support arm, 38: support frame, 39: granular material discharge cylinder, 40: holding frame

Claims

車体（１）の後方に昇降可能な苗植付部（６）を装備し、該苗植付部（６）には、マット苗を載せて左右に往復動し苗を一株分づつ各条の苗取出口（１１ｂ）に供給すると共に横一列の苗を全て苗取出口（１１ｂ）に供給すると苗送りベルト（１１ｃ）により苗を下方に移送する苗タンク（１１）と、一株分の苗を切取って土中に植込む苗植付装置（１３）と、苗植付面を滑走しながら整地するフロート（１４Ｌ，１４Ｒ，１４Ｃ）を備えた苗移植機において、苗タンク（１１）をマット苗毎に仕切る仕切突条部（１１ｄ）上に沿わせて支持フレーム（３８）を設け、支持フレーム（３８）に対して支軸（３６）を支点として回動可能に支持アーム（３７）を設け、薬剤等の粉粒体を貯溜する粉粒体貯溜部（１５）と、粉粒体を所定量づつ繰り出す繰出部（１７）と、前記粉粒体貯溜部に開閉可能に設けられた蓋部（１６）と、繰出部（１７）を駆動するモータ（１９）とからなる粉粒体吐出装置（１８）を、支持アーム（３７）に支持して散布作業時の起立姿勢と非散布作業時の倒伏姿勢とに切替回動可能に設け、粉粒体吐出装置（１８）を前記倒伏姿勢に切り替えたとき、蓋部（１６）を開くと該蓋部（１６）が粉粒体貯溜部（１５）の供給口から流れ落ちる粉粒体を受け入れる姿勢となる構成とした苗移植機。 Equipped with a seedling planting part (6) that can be raised and lowered at the rear of the vehicle body (1), the mat seedling is placed on the seedling planting part (6) and moved back and forth to the left and right, and each line of seedlings for one stock. A seedling tank (11) for feeding the seedlings downward by a seedling feeding belt (11c) when supplying all the seedlings in one horizontal row to the seedling collecting outlet (11b) In a seedling transplanter equipped with a seedling planting device (13) for cutting seedlings and planting them in the soil, and a float (14L, 14R, 14C) for leveling while sliding on the seedling planting surface, seedling tank (11) A support frame (38) is provided along the partition protrusion (11d) for partitioning the mat seedlings, and the support arm (37) is rotatable with the support shaft (36) as a fulcrum with respect to the support frame (38). ) is provided, granular material reservoir for reserving the granular material of the drug or the like (15), Repetitive predetermined amount at a time the granular material A granular material discharge device (18) comprising a feeding portion (17) to be taken out, a lid portion (16) provided to be openable and closable in the granular material storage portion, and a motor (19) for driving the feeding portion (17). ) Is supported by the support arm (37) so as to be able to switch between a standing posture at the time of spraying work and a lying posture at the time of non-spraying work, and the granular material discharge device (18) is switched to the above-mentioned lying posture. When the lid (16) is opened, the seedling transplanter is configured such that when the lid (16) is opened, the lid (16) receives the granular material that flows down from the supply port of the granular material reservoir (15) .

繰出部（１７）の繰出口部（１７ｂ）は、ブラシ（１７ｃ）取付側とは反対側の下部がブラシ（１７ｃ）取付側よりも下方に長い構成とした請求項１に記載の苗移植機。 The seedling transplanter according to claim 1, wherein the feeding port (17b) of the feeding unit (17) is configured such that a lower part opposite to the brush (17c) mounting side is longer than the brush (17c) mounting side. .

繰出部（１７）の繰出口部（１７ｂ）に連設する粉粒体吐出筒（３９）を、粉粒体吐出装置（１８）の保持枠（４０）の中に収納できる構成とした請求項１又は請求項２に記載の苗移植機。 The granular material discharge cylinder (39) connected to the supply port (17b) of the supply portion (17) can be stored in the holding frame (40) of the granular material discharge device (18). The seedling transplanter according to claim 1 or claim 2.

倒伏姿勢に切り替えたとき、粉粒体吐出装置（１８）の後部がフロート（１４Ｌ，１４Ｒ，１４Ｃ）の後部と略同一位置若しくはフロート（１４Ｌ，１４Ｒ，１４Ｃ）の後部よりも稍前方に位置する構成とした請求項１から請求項３の何れか１項に記載の苗移植機。 When switched to the lying down posture, the rear part of the granular material discharge device (18) is located at substantially the same position as the rear part of the float (14L, 14R, 14C) or in front of the heel rather than the rear part of the float (14L, 14R, 14C). The seedling transplanter according to any one of claims 1 to 3, wherein the seedling transplanter is configured.

粉粒体吐出装置（１８）を倒伏姿勢に切り替えたとき、粉粒体貯溜部（１５）の供給口が下向きとなり、蓋部（１６）の容積は、粉粒体貯溜部（１５）の容積と略同一若しくはそれ以上に大きく設定した請求項１から請求項４の何れか１項に記載の苗移植機。 When the granular material discharge device (18) is switched to the lying posture, the supply port of the granular material storage part (15) faces downward, and the volume of the lid part (16) is the volume of the granular material storage part (15). The seedling transplanting machine according to any one of claims 1 to 4, wherein the seedling transplanting machine is set to be substantially the same as or larger than that.