JPH08214627A - Method and device for taking out seedling in transplanter - Google Patents
Method and device for taking out seedling in transplanterInfo
- Publication number
- JPH08214627A JPH08214627A JP3735495A JP3735495A JPH08214627A JP H08214627 A JPH08214627 A JP H08214627A JP 3735495 A JP3735495 A JP 3735495A JP 3735495 A JP3735495 A JP 3735495A JP H08214627 A JPH08214627 A JP H08214627A
- Authority
- JP
- Japan
- Prior art keywords
- seedling
- nail
- guide
- claw
- taking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Transplanting Machines (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は、移植機の苗取出方法及
び装置に係り、キャベツ、レタス等の野菜移植に利用さ
れる。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seedling removing method and device for a transplanter, and is used for transplanting vegetables such as cabbage and lettuce.
【0002】[0002]
【従来の技術】縦横格子状の配列でポット部を有する苗
トレイに苗を育苗させておき、前記ポット部から苗土
(土付苗)を取出して移植する野菜移植機は公知であ
り、農作業の機械化を図っている。この種の野菜移植機
は、特開平4−330211号公報に開示されているよ
うに、主要構成が、苗トレイにおけるポット部の苗土に
突入可能な一対の苗取出爪と、この一対の苗取出爪を互
いに離して先端に設けた爪支持体と、一対の苗取出爪の
進退を案内する一対の爪ガイドと、前記爪支持体及び爪
ガイドをそれぞれ往復動自在に支持する保持体と、爪支
持体及び爪ガイドを往復動させる爪動作機構とを有して
いる。2. Description of the Related Art A vegetable transplanting machine for growing seedlings in a seedling tray having a pot portion in a vertical and horizontal lattice arrangement, and taking out seedling soil (soiled seedling) from the pot portion and transplanting the seedlings is well known. Is trying to mechanize. As disclosed in Japanese Patent Laid-Open No. 4-330211, this type of vegetable transplanting machine has a pair of seedling take-out nails that are capable of plunging into the seedling soil in the pot section of the seedling tray and the pair of seedlings. A claw support provided at the tip of the picking claws away from each other, a pair of claw guides for guiding the advance and retreat of a pair of seedling picking claws, and a holding body for supporting the claw support and the claw guide in a reciprocating manner, respectively. And a pawl operating mechanism that reciprocates the pawl support and the pawl guide.
【0003】そして、ポット部の開口側から苗取出爪を
苗土に突入しかつ退出することでポット部の開口から苗
土を取出し、この取出した苗土を植付装置の上方まで移
送し、爪支持体及び爪ガイドを植付筒に対応した略下向
きの姿勢にした後、爪ガイドを苗取出爪先端側へ移動し
て、苗取出爪で取出した苗土を苗取出爪から離脱して植
付装置に落下供給するようになっている。Then, the seedling take-out claws are inserted into the seedling soil from the opening side of the pot portion and then withdrawn to take out the seedling soil from the opening of the pot portion, and the taken seedling soil is transferred to a position above the planting device, After setting the nail support and the nail guide in a substantially downward posture corresponding to the planting cylinder, move the nail guide to the tip side of the seedling removing nail, and remove the seedling soil taken out by the seedling removing nail from the seedling removing nail. It is designed to be dropped and supplied to the planting device.
【0004】前記移植機の苗取出装置では、爪ガイドは
苗取出爪に嵌合支持されたパイプであり、一対の苗取出
爪及び爪ガイドは先端側で近づくように傾斜配置されて
いて、爪支持体は一対の苗取出爪を備えたまま苗ポット
に対して直線移動するのに対して、爪ガイドは苗取出爪
に沿って直線移動し、また、一対の苗取出爪及び爪ガイ
ドは爪支持体に対して枢支されていて、先端側が遠近移
動(開閉)するようになっており、更に側面視におい
て、苗取出爪は苗取出時に苗土の中心線上を突き進む。In the seedling take-out device of the transplanter, the nail guide is a pipe fitted and supported by the seedling take-out nail, and the pair of seedling take-out nails and the nail guide are inclined so that they approach each other at the tip side. While the support moves linearly with respect to the seedling pot with the pair of seedling picking nails, the nail guide moves linearly along the seedling picking nails, and the pair of seedling picking nails and the nail guide have nails. It is pivotally supported with respect to the support, and the tip side moves (opens and closes) in a perspective manner. Further, in a side view, the seedling take-out claws push forward on the center line of the seedling when taking out the seedlings.
【0005】従って、爪支持体を直線移動して苗取出爪
を苗土に突き刺し、突き刺した苗取出爪を閉鎖して苗土
を挟持し、爪支持体の後退移動で苗土を取出し、爪支持
体及び爪ガイドを略下向きの姿勢にした後、苗取出爪の
先端を開き、そして爪ガイドを苗取出爪先端側へ移動し
て、苗土を苗取出爪から離脱する。その後に、爪支持体
を苗土取出し位置へ移動しながら爪ガイドを後退させ
る。Therefore, the nail support is linearly moved to pierce the seedling removing nail into the seedling soil, the stabbed seedling extracting nail is closed to sandwich the seedling soil, and the seedling removing soil is taken out by the backward movement of the nail support, After the support and the nail guide are in a substantially downward posture, the tip of the seedling take-out nail is opened, and the nail guide is moved to the tip of the seedling take-out nail to detach the seedling soil from the seedling take-out nail. After that, the nail guide is retracted while moving the nail support to the seedling taking-out position.
【0006】[0006]
【発明が解決しようとする課題】前記従来技術では、苗
土取出し時に爪支持体を直線移動して苗取出爪を苗土に
突き刺しかつ苗取出爪を閉鎖して苗土を挟持するため、
苗土の搬送中の落下は防止できるが、挟持によって苗取
出爪で苗土を破損する可能性があり、動作が2段階にな
るので苗土の取出しを迅速にするのが困難になる。In the above-mentioned prior art, since the nail support is linearly moved to pierce the seedling extraction nail into the seedling and the seedling extraction nail is closed to sandwich the seedling soil during extraction of the seedling soil,
Although the seedling soil can be prevented from falling during transportation, the seedling pickup nail may damage the seedling soil due to the sandwiching, and since the operation has two stages, it becomes difficult to quickly remove the seedling soil.
【0007】また、爪ガイドで苗土を苗取出爪から離脱
できるが、苗取出爪の開放と爪ガイドの進出という2段
階動作が必要になり、苗土の離脱を迅速にするのが困難
になると共に、爪ガイドが各苗取出爪に嵌合したパイプ
であるため、苗土に突き刺さるようになって十分な押動
が困難である。本発明は、このような従来技術の問題点
を解決して、苗土及びその葉を損傷することなく迅速か
つ正確に取出し、苗取出爪から迅速かつ正確に離脱して
植付装置側へ受渡しできるようにした移植機の苗取出方
法及び装置を提供することを目的とするものである。[0007] Further, although the seedling can be detached from the seedling take-out nail by the nail guide, a two-step operation of opening the seedling take-out nail and advancing the nail guide is required, which makes it difficult to quickly remove the seedling soil. In addition, since the nail guide is a pipe fitted to each seedling extraction nail, it is pierced into the seedling and it is difficult to push it sufficiently. The present invention solves the problems of the prior art as described above, and quickly and accurately takes out the seedling soil and its leaves without damaging it, and quickly and accurately removes it from the seedling take-out nail and delivers it to the planting device side. It is an object of the present invention to provide a seedling removal method and device for a transplanter that is made possible.
【0008】[0008]
【課題を解決するための手段】本発明方法における課題
解決のための具体的手段は、苗トレイ2におけるポット
部3に対して、互いに離れて位置する一対の苗取出爪4
を突入しかつ退出することで、ポット部3から苗土5を
取出し、苗取出爪4に嵌合した爪ガイド6を爪先端側へ
移動して、苗取出爪4から苗土5を離脱する移植機の苗
取出方法であって、前記苗取出時に一対の苗取出爪4を
ポット部3内の苗土5に対して前進させながら、爪ガイ
ド6で爪先端間距離Lを狭めていき、苗離脱時に爪ガイ
ド6を爪先端側へ移動して苗取出爪4から苗土5を押出
ながら、爪ガイド6で苗取出爪4の爪先端間距離Lを広
げていくことにある。A concrete means for solving the problem in the method of the present invention is a pair of seedling take-out nails 4 which are located apart from each other with respect to the pot portion 3 in the seedling tray 2.
Of the seedlings 5 are removed from the pot portion 3 by moving the claw guide 6 fitted to the seedling taking-out claws 4 toward the tip of the claws by rushing in and out of the seedlings taking-out claws 4. A method for transplanting seedlings in a transplanting machine, wherein the pair of seedlings-extracting nails 4 is advanced to the seedling soil 5 in the pot portion 3 while the seedlings are extracted, and the distance L between nail tips is narrowed by the nail guide 6. When the seedling is detached, the nail guide 6 is moved to the tip of the nail to push the seedling soil 5 from the seedling picking nail 4, while the nail guide 6 widens the distance L between the tip of the seedling taking nail 4.
【0009】本発明装置における課題解決のための第1
の具体的手段は、苗トレイ2におけるポット部3の苗土
5に突入可能な一対の苗取出爪4と、この一対の苗取出
爪4を互いに離して先端に枢支した爪支持体8と、一対
の苗取出爪4の進退を案内する爪ガイド6と、前記爪支
持体8及び爪ガイド6をそれぞれ往復動自在に支持する
保持体9と、爪支持体8及び爪ガイド6をそれぞれ往復
動させると共に苗取出爪4をポット部3に向く姿勢から
植付装置35の植付筒43に対向する略下向き姿勢まで
移動させる爪動作機構10とを有する移植機の苗取出装
置であって、前記苗取出爪4が略下向き姿勢になったと
きに爪動作機構10によって爪先端側へ移動される爪ガ
イド6は一対の苗取出爪4を同時に案内するガイド部1
1を有し、このガイド部11に両苗取出爪4間に跨がる
押出面を形成していることである。First for solving the problem in the device of the present invention
The specific means of the above is: a pair of seedling take-out nails 4 capable of plunging into the seedling soil 5 of the pot portion 3 in the seedling tray 2; and a nail support 8 pivotally supported at the tip by separating the pair of seedling take-out nails 4 from each other. , A pair of claw guides 6 for guiding the forward / backward movement of the pair of seedling picking claws 4, a holder 9 for reciprocally supporting the claw support 8 and the claw guide 6, and a reciprocating claw support 8 and the claw guide 6, respectively. A seedling take-out device for a transplanter having a claw operating mechanism 10 for moving and moving the seedling take-out claw 4 from a posture facing the pot part 3 to a substantially downward posture facing the planting cylinder 43 of the planting device 35, The nail guide 6 that is moved toward the tip of the nail by the nail operating mechanism 10 when the seedling take-out nail 4 is in a substantially downward posture is a guide portion 1 that guides the pair of seedling take-out nails 4 at the same time.
1 is provided, and the guide portion 11 is formed with an extruding surface that extends between both seedling picking nails 4.
【0010】本発明装置における課題解決のための第2
の具体的手段は、第1の具体的手段に加えて、前記爪ガ
イド6のガイド部11は、一対の苗取出爪4を枢支部よ
り先端側で枢支部間隔Kよりも短い間隔で案内すること
である。Second for solving the problem in the device of the present invention
In addition to the first specific means, the guide portion 11 of the nail guide 6 guides the pair of seedling take-out nails 4 on the tip side of the pivot portion at a distance shorter than the pivot portion distance K. That is.
【0011】[0011]
【作用】苗トレイ2におけるポット部3に対して、互い
に離れて位置する一対の苗取出爪4を突入しかつ退出
し、ポット部3から苗土5を取出し、苗土5を取出した
苗取出爪4を略下向きに姿勢を変更した後に、苗取出爪
4に嵌合した爪ガイド6を爪先端側へ移動して、苗取出
爪4から苗土5を離脱する。Operation: A pair of seedling take-out claws 4 located apart from each other are inserted into and withdrawn from the pot section 3 in the seedling tray 2, the seedling soil 5 is taken out from the pot section 3, and the seedling takeout from which the seedling soil 5 is taken out is taken out. After changing the posture of the claws 4 substantially downward, the claw guide 6 fitted to the seedling taking-out claws 4 is moved to the tip side of the claws to separate the seedling soil 5 from the seedling taking-out claws 4.
【0012】前記苗取出時に、一対の苗取出爪4を、ポ
ット部3内の苗土5に対して前進させながら爪ガイド6
で爪先端間距離Lを狭めていき、苗土5を破損しないよ
うに、また苗取出爪4から苗土5が抜け出ないようにし
て取出す。苗離脱時に爪ガイド6を爪先端側へ移動して
苗取出爪4から苗土5を押出ながら、爪ガイド6で苗取
出爪4の爪先端間距離Lを広げていくと、苗取出爪4の
先端は苗土5に対して突き刺し時と同一の軌道を逆戻り
する。At the time of taking out the seedlings, the pair of seedling taking-out nails 4 is moved forward with respect to the seedling soil 5 in the pot portion 3, and the nail guides 6 are provided.
The distance L between the tips of the nails is reduced by taking out the seedlings 5 so that the seedlings 5 are not damaged and the seedlings 5 are not pulled out from the seedling taking-out nails 4. When removing the seedlings, the nail guide 6 is moved to the tip side of the nails to push out the seedling soil 5 from the seedling taking-out nails 4 and the distance L between the tip ends of the seedling taking-out nails 4 is widened by the nail guides 6. The tip of the head moves back in the same orbit as when piercing the seedling soil 5.
【0013】[0013]
【実施例】以下、本発明の実施例を図面に基いて説明す
る。図12〜14は乗用移植機21の全体を示してお
り、この移植機21は、乗用型走行車輌22の後方に移
植装置23を備えてなり、2条の畝を跨いでその長手方
向に走行しながら、苗土5(ソイルブロック苗)を各畝
に所定間隔をおいて自動的に植付けるものである。Embodiments of the present invention will be described below with reference to the drawings. 12 to 14 show the whole of the passenger transplanter 21, which is provided with a transplanter 23 at the rear of a passenger traveling vehicle 22 and travels in the longitudinal direction across two ridges. However, seedling soil 5 (soil block seedling) is automatically planted in each ridge at a predetermined interval.
【0014】走行車輌22は、車体フレーム24の前部
上に、ボンネット25で覆われたエンジン,燃料タンク
等と、ハンドルを備えた操縦部26とを設けると共に、
この操縦部26の後方に運転席27を設け、さらに左右
一対の前輪28と左右一対の後輪29とで車体フレーム
24を走行可能に支持して主構成されている。なお、前
輪28は操向輪とされると共に、後輪29又は前後輪2
8、29にエンジンからの動力が伝達可能とされ、ボン
ネット25の左右側方には予備苗のせ台30が設けられ
ている。The traveling vehicle 22 is provided with an engine, a fuel tank and the like covered with a bonnet 25, and a control section 26 having a steering wheel, on a front portion of a body frame 24, and
A driver's seat 27 is provided at the rear of the control unit 26, and the main body frame 24 is movably supported by a pair of left and right front wheels 28 and a pair of left and right rear wheels 29. The front wheels 28 are steering wheels, and the rear wheels 29 or the front and rear wheels 2 are used.
Power from the engine can be transmitted to 8 and 29, and a preliminary seedling stand 30 is provided on the left and right sides of the bonnet 25.
【0015】前記移植装置23は、主フレーム33の上
方前側に、多数の苗土5を縦横に収容した苗トレイ2を
縦横に間欠送りする搬送装置34を設け、この搬送装置
34の下部後方に前記苗トレイ2から苗土5を1つずつ
取出して主フレーム33の下方に設けた植付装置35へ
と受渡しする苗取出装置1を設け、主フレーム33の後
部下方に覆土・鎮圧ローラ36を備えて主構成されてい
る。The transplanting device 23 is provided on the upper front side of the main frame 33 with a conveying device 34 for intermittently feeding the seedling trays 2 containing a large number of seedlings 5 vertically and horizontally, and at the lower rear of the conveying device 34. The seedling take-out device 1 for taking out the seedlings 5 one by one from the seedling tray 2 and delivering the seedlings 5 to the planting device 35 provided under the main frame 33 is provided, and the covering / squeezing roller 36 is provided under the rear part of the main frame 33. It is mainly composed to prepare.
【0016】苗トレイ2は、プラスチック製で、薄肉に
形成されて可撓性を有し、縦横に所定ピッチで碁盤目状
に配列された多数のポット部3を備え、ポット部3の開
口縁部が相互に平面状に連結されて構成されており、さ
らにポット部3の底部には水抜き孔が形成されている。
そして、ポット部3に床土を充填し、そこへ播種し育苗
することで苗土5が育成されている。The seedling tray 2 is made of plastic, is thin and has flexibility, and is provided with a large number of pot portions 3 arranged in a grid pattern at a predetermined pitch in the vertical and horizontal directions. The parts are connected to each other in a planar shape, and a drain hole is formed in the bottom of the pot part 3.
Then, the pot portion 3 is filled with bed soil, and the seed soil 5 is cultivated by sowing and raising the seedling there.
【0017】主フレーム33は走行車輌22の車体フレ
ーム24の後部に、トップリンク38aと左右一対のロ
ワーリンク38bとからなる三点リンク機構38を介し
て昇降自在に支持され、車体フレーム24とトップリン
ク38aとの間には、油圧シリンダ39が設けられてお
り、これにより移植装置23が昇降されるようになって
いる。The main frame 33 is supported at the rear portion of the vehicle body frame 24 of the traveling vehicle 22 so as to be able to move up and down through a three-point link mechanism 38 consisting of a top link 38a and a pair of left and right lower links 38b, and the vehicle body frame 24 and the top frame A hydraulic cylinder 39 is provided between the link 38a and the implanting device 23 so that the implanting device 23 can be moved up and down.
【0018】植付装置35は、主フレーム33に横軸4
0を介して上下動可能に枢支された可動フレーム41に
揺動リンク機構42を介して植付筒43を支持し、走行
車輛22のPTO軸から動力伝達手段44を介して伝達
される動力で、植付筒43を上下方向に長い楕円軌跡を
描くように作動可能になっている。植付筒43は、下部
に開閉自在なオープナを備えており、オープナは楕円軌
跡の下端側にて畝に突入したときに前後に開き、植え穴
を形成すると共に、この植え穴に軌跡の上端側で供給さ
れる苗土5を植付け得るようになっている。The planting device 35 includes a horizontal frame 4 on the main frame 33.
The power transmitted from the PTO shaft of the traveling vehicle 22 through the power transmission means 44, which supports the planting cylinder 43 through the swinging link mechanism 42 on the movable frame 41 which is vertically movably supported through 0. Thus, the planting cylinder 43 can be operated so as to draw a long elliptical locus in the vertical direction. The planting cylinder 43 is provided with an opener that can be opened and closed at the bottom, and the opener opens back and forth when it enters the ridge at the lower end side of the elliptical locus to form a planting hole and the upper end of the locus to the planting hole. The seedling soil 5 supplied by the side can be planted.
【0019】前記覆土・鎮圧ローラ36は可動フレーム
41に支持アーム46を介して支持され、この可動フレ
ーム41と支持アーム46との間に高さ調整手段47が
設けられ、支持アーム46の後端は主フレーム33に設
けた昇降制限部材48の長孔48aに係合している。可
動フレーム41の昇降動作は、昇降動作伝達手段49を
介して油圧シリンダ39を操作する制御バルブに連動可
能になっており、畝の高さが大きく変化して、支持アー
ム46の後端が昇降制限部材48の長孔48aの略中央
から上下に大きく移動することがあると、油圧シリンダ
39を操作して移植装置23の高さを調整する。The soil covering / squeezing roller 36 is supported by a movable frame 41 via a support arm 46, and height adjusting means 47 is provided between the movable frame 41 and the support arm 46, and a rear end of the support arm 46 is provided. Engages with a long hole 48a of a lifting limit member 48 provided on the main frame 33. The ascending / descending operation of the movable frame 41 can be interlocked with a control valve that operates the hydraulic cylinder 39 via the ascending / descending operation transmission means 49, and the height of the ridge changes significantly, so that the rear end of the support arm 46 moves up and down. When there is a large vertical movement from the approximate center of the elongated hole 48a of the restriction member 48, the height of the transplantation device 23 is adjusted by operating the hydraulic cylinder 39.
【0020】苗取出装置1は、図1〜11、14に示す
ように、搬送装置34に対して所定の苗取出位置で苗ト
レイ2のポット部3から苗土5を一つずつ取出し、この
苗土5を搬送装置34の植付筒43の上方まで移送して
落下供給するものである。苗取出装置1は、一対の針形
状の苗取出爪4と、この一対の苗取出爪4を先端に設け
た爪支持体8と、一対の苗取出爪4の進退を案内する爪
ガイド6と、前記爪支持体8及び爪ガイド6をそれぞれ
長手方向往復動自在に支持する保持体9と、爪支持体8
及び爪ガイド6を適正に動作させる爪動作機構10とを
有している。As shown in FIGS. 1 to 11 and 14, the seedling take-out device 1 takes out the seedling soils 5 one by one from the pot portion 3 of the seedling tray 2 at a predetermined seedling take-out position with respect to the transport device 34. The seedling 5 is transferred to a position above the planting cylinder 43 of the transfer device 34 and dropped. The seedling taking-out device 1 includes a pair of needle-shaped seedling taking-out nails 4, a nail support 8 provided with the pair of seedling taking-out nails 4 at the tips thereof, and a nail guide 6 for guiding the pair of seedling taking-out nails 4 back and forth. A holder 9 for supporting the claw support 8 and the claw guide 6 so as to be reciprocally movable in the longitudinal direction, and a claw support 8
And a pawl operating mechanism 10 for properly operating the pawl guide 6.
【0021】前記爪動作機構10は、苗トレイ2と植付
筒43との間で苗取出爪4を姿勢変更しながら往復動作
させるものであり、主フレーム33上に固定された支持
フレーム14を備え、この支持フレーム14には、PT
O軸からの回転動力によって、図1、5において反時計
回りに回転駆動されるクランク体52が回動軸51設け
られている。このクランク体52にはアームを介してク
ランクピン53が側方に突設されていると共に、クラン
ク体52と同軸心として駆動カム52Aが備えられてい
る。The pawl operating mechanism 10 reciprocates the seedling take-out pawl 4 between the seedling tray 2 and the planting cylinder 43 while changing its posture, and supports the support frame 14 fixed on the main frame 33. This support frame 14 has a PT
A rotary shaft 51 is provided with a crank body 52 that is driven to rotate counterclockwise in FIGS. 1 and 5 by rotational power from the O-axis. A crank pin 53 is provided on the crank body 52 so as to protrude laterally via an arm, and a drive cam 52A is provided coaxially with the crank body 52.
【0022】また、支持フレーム14には、クランク体
52の下方で揺動アーム54の下部が揺動軸54Aによ
り枢結されていて、この揺動アーム54の中途部には上
下方向(アーム長手方向)に延びる長孔55が形成さ
れ、この長孔55にクランク体52のクランクピン53
が挿通係合されており、而して、爪動作機構10は揺動
アーム54が搬送装置34へ苗土5を取るために揺動す
る復行程時間が早く、一方、植付装置35へ苗土5を供
給するために揺動する往行程時間の方が長くなる早戻り
機構が構成されている。A lower portion of the swing arm 54 is pivotally connected to the support frame 14 below the crank body 52 by a swing shaft 54A, and a middle portion of the swing arm 54 is vertically (arm lengthwise). Direction) is formed, and the crank pin 53 of the crank body 52 is formed in the long hole 55.
The pawl operating mechanism 10 is swung for the swing arm 54 to pick up the seedlings 5 to the transport device 34, and the return stroke time is short, while the seedling device 35 is swung. A quick return mechanism is configured in which the forward stroke time of rocking for supplying the soil 5 is longer.
【0023】すなわち、苗取出爪4によってポット部3
から苗土5を取出すための復行程Yのときはその移動を
早くし、ポット部3から苗土5を取出して植付筒43に
受渡す往行程Xのときは遅速移動するようにして、苗土
5の移送途中の落下を防止しながら苗取出・供給の効率
化を図っている。揺動アーム54の上部には保持体9が
ピン54Bを介して枢結されている。この保持体9はピ
ン54Bを設けた部位が筒形状に形成されており、この
筒状部には、軸方向移動自在にパイプ製の爪支持体8が
挿通案内されて、この爪支持体8は搬送装置34の苗ト
レイ2に向かって出退可能とされている。この爪支持体
8の先端部に、ポット部3内の苗土5に斜め方向から突
き刺される一対の苗取出爪4が取付けられている。That is, the pot portion 3 is formed by the seedling take-out nail 4.
In the return stroke Y for taking out the seedlings 5 from the pot, the movement is accelerated, and in the forward stroke X where the seedlings 5 are taken out from the pot section 3 and delivered to the planting cylinder 43, the movement is slow. We are trying to improve the efficiency of seedling extraction and supply while preventing the seedling soil 5 from falling during transfer. The holder 9 is pivotally connected to the upper part of the swing arm 54 via a pin 54B. The holding body 9 is formed in a tubular shape at the portion provided with the pin 54B, and the tubular pawl support body 8 is inserted and guided in the tubular portion so as to be movable in the axial direction. Can be moved toward and away from the seedling tray 2 of the carrier device 34. A pair of seedling take-out nails 4 which are pierced obliquely into the seedling soil 5 in the pot portion 3 are attached to the tip ends of the nail supporters 8.
【0024】また、保持体9にはブラケット56を介し
て遊転自在にローラ57が取付けられ、このローラ57
は、支持フレーム14の上部にピン58を介して揺動自
在に取付けられたガイド板59に形成されたカム溝60
に係合されている。前記ガイド板59は突出腕の先端に
転動ローラ61を有し、この転動ローラ61は駆動カム
52A上に当接されていて、駆動カム52Aの反時計方
向の回転によりガイド板59をピン58を中心として揺
動可能にしている。A roller 57 is attached to the holder 9 via a bracket 56 so that the roller 57 can rotate freely.
Is a cam groove 60 formed in a guide plate 59 that is swingably attached to the upper portion of the support frame 14 via a pin 58.
Is engaged. The guide plate 59 has a rolling roller 61 at the tip of the protruding arm, and the rolling roller 61 is in contact with the drive cam 52A, and the guide plate 59 is pinned by the counterclockwise rotation of the drive cam 52A. It is possible to swing about 58.
【0025】ピン58を中心とするガイド板59の揺動
は、苗取出爪4がポット部3に向って進出するときは、
突入開始点(図1参照)の手前から、苗土5の葉を下側
からすくい込むように、苗取出爪4の先端をピン54B
の廻りで首振りするようにしていると共に、揺動アーム
54の揺動角度に応じた保持体9の姿勢(特に、揺動ア
ーム54に対する保持体9の相対角度)を規制してい
る。The swinging of the guide plate 59 around the pin 58 is such that when the seedling picking-out claw 4 advances toward the pot portion 3,
From the front of the plunge start point (see FIG. 1), the tip of the seedling take-out nail 4 is pin 54B so that the leaves of the seedling soil 5 are scooped from below.
The posture of the holding body 9 (in particular, the relative angle of the holding body 9 with respect to the swing arm 54) is regulated according to the swing angle of the swing arm 54.
【0026】即ち、苗土5をポット部3から引き出すと
き(図1に示す状態から図2に示す状態まで)には、揺
動アーム54に対する保持体9の相対角度があまり変化
しないように、カム溝60の前部側(図1右側)は、ロ
ーラ57を揺動アーム54の揺動軸54Aを中心として
移行させる形状とされている。これにより、苗取出爪4
の先端が揺動アーム54の揺動軸54Aを中心とする軌
跡を描きながら、苗土5をポット部3からゆっくりとす
くい上げるように取出す。That is, when the seedling 5 is pulled out from the pot portion 3 (from the state shown in FIG. 1 to the state shown in FIG. 2), the relative angle of the holding body 9 with respect to the swing arm 54 does not change so much. The front side (right side in FIG. 1) of the cam groove 60 is shaped so as to move the roller 57 around the swing shaft 54A of the swing arm 54. As a result, the seedling extraction nail 4
The seedling 5 is slowly picked up from the pot portion 3 while drawing a locus around the swing shaft 54A of the swing arm 54.
【0027】また、ポット部3から取出された苗土5を
植付筒43の上方に移送させるとき(図2に示す状態か
ら図3に示す状態まで)には、苗取出爪4を大きく後下
方へ移動させると共に略下向き姿勢に変更し、苗土5を
略鉛直姿勢にする。そのために、カム溝60の後部側
(図2左側)は、ローラ57を揺動アーム54の揺動軸
54Aから離れる方向に移動させる形状とされている。Further, when the seedling soil 5 taken out from the pot portion 3 is transferred to the upper part of the planting cylinder 43 (from the state shown in FIG. 2 to the state shown in FIG. 3), the seedling taking-out claws 4 are largely moved backward. The seedling 5 is moved to the lower side and is changed to a substantially downward position, and the seedling soil 5 is set to a substantially vertical position. Therefore, the rear side (left side in FIG. 2) of the cam groove 60 is shaped to move the roller 57 in a direction away from the swing shaft 54A of the swing arm 54.
【0028】爪支持体8の外周には、図6〜9に示すよ
うに、その基端部に設けた基体65と保持体9の筒状部
との間に、爪支持体8を後退する方向に付勢するコイル
スプリング66が介装されており、爪支持体8の前端部
には爪取り付け具67が嵌合固定されている。この爪取
り付け具67に一対の苗取出爪4の基部がそれぞれ軸4
aを介して又は苗取出爪4の基部を直角に折曲して軸と
して枢支されており、一対の苗取出爪4は爪取り付け具
67に対して先端が遠近移動するように揺動可能になっ
ている。As shown in FIGS. 6 to 9, on the outer periphery of the claw support 8, the claw support 8 is retracted between the base body 65 provided at the base end of the claw support 8 and the cylindrical portion of the holding body 9. A coil spring 66 that urges in the direction is interposed, and a claw attachment 67 is fitted and fixed to the front end portion of the claw support 8. The bases of the pair of seedling take-out claws 4 are respectively attached to the shaft 4 on the claw attachment 67.
The seedling take-out nails 4 are pivotally supported as shafts by bending the base portion of the seedling take-out nails 4 at a right angle, and the pair of seedling take-out nails 4 can be swung so that the tips of the seedling take-out nails 4 move relative to the nail fixture 67. It has become.
【0029】前記保持体9の下端部には、押出リンク6
8がピン69を介して回動自在に枢結されている。この
押出リンク68の先端部には長孔(又は長溝)70が形
成され、爪取り付け具67の突出腕に設けたピン71と
係合されている。この押出リンク68にはカム板73が
設けられ、このカム板73はクランク体52のクランク
ピン53と当接可能である。揺動アーム54が搬送装置
34側の揺動端に位置するときに(図1参照)、回動し
てくるクランクピン53によってカム板73を介して押
出リンク68が揺動され、保持体9に対して爪取り付け
具67及び爪支持体8を搬送装置34側へ向けて押動
し、コイルスプリング66を圧縮する。これにより、苗
取出爪4は突出し、かつ爪支持体8が後退のための復元
力が保有されることになる。An extruding link 6 is provided at the lower end of the holding body 9.
8 is rotatably connected via a pin 69. A long hole (or long groove) 70 is formed at the tip of the push-out link 68, and is engaged with a pin 71 provided on the protruding arm of the claw attachment 67. A cam plate 73 is provided on the push-out link 68, and the cam plate 73 can contact the crank pin 53 of the crank body 52. When the swing arm 54 is located at the swing end on the side of the transport device 34 (see FIG. 1), the pushing link 68 is swung by the rotating crank pin 53 via the cam plate 73, and the holder 9 is held. On the other hand, the claw attachment 67 and the claw support 8 are pushed toward the transport device 34 side to compress the coil spring 66. As a result, the seedling take-out claw 4 is projected and the claw support 8 has a restoring force for retracting.
【0030】6は前記爪支持体8、基体65及び爪取り
付け具67に長手方向摺動自在に挿入された爪ガイドで
あり、丸棒等で形成されていて、その前端にガイド部1
1を形成する部材が両苗取出爪4に跨がって装着され、
その前面が苗土5と当接する押圧面となっている。爪ガ
イド6の後端に側面視L字板状の作動部材76が装着さ
れ、中途部に止め具77が固着され、この止め具77と
基体65との間にスプリング78が嵌装されている。Reference numeral 6 denotes a claw guide which is slidably inserted in the claw support 8, the base body 65 and the claw attachment 67 in the longitudinal direction, and is formed of a round bar or the like, and the guide portion 1 is provided at the front end thereof.
The member forming 1 is attached across both seedling picking nails 4,
The front surface is a pressing surface that contacts the seedling soil 5. An operating member 76 having an L-shaped plate in side view is attached to the rear end of the claw guide 6, a stopper 77 is fixed in the middle thereof, and a spring 78 is fitted between the stopper 77 and the base body 65. .
【0031】図8、9、11に示すように、爪ガイド6
は2本の苗取出爪4に対して三角配置されており、ガイ
ド部11には2つの爪挿通孔11aが形成され、この左
右爪挿通孔11aの間隔は、左右苗取出爪4の枢支部間
隔K(枢支部である軸4aの間隔)より狭く設定されて
いる。従って、苗取出爪4と爪ガイド6とが相対移動す
ると苗取出爪4の爪先端間距離Lが変化する。即ち、ガ
イド部11が苗取出爪4の先端側に位置するとき、爪先
端間距離Lは最も広く、この状態からガイド部11を不
動にしておいて苗取出爪4を突出していくと、苗取出爪
4の基部側はガイド部11に近づき、爪先端間距離Lは
次第に狭くなる。As shown in FIGS. 8, 9 and 11, the claw guide 6
Are triangularly arranged with respect to the two seedling take-out nails 4, two guide-insertion holes 11a are formed in the guide portion 11, and the intervals between the left and right claw-insertion holes 11a are the pivotal support portions of the left and right take-away nails 4. The distance is set to be narrower than the distance K (the distance between the shafts 4a, which are the pivot portions). Therefore, when the seedling take-out nail 4 and the nail guide 6 move relative to each other, the distance L between the tip ends of the seedling take-out nail 4 changes. That is, when the guide portion 11 is located on the tip side of the seedling taking-out nail 4, the distance L between the nail tips is widest, and if the guide portion 11 is immovable and the seedling taking-out nail 4 is projected from this state, the seedling The base side of the take-out claw 4 approaches the guide portion 11, and the distance L between the claw tips gradually decreases.
【0032】そのため、苗土5をポット部3から取出す
ため、前進させていくと、左右の苗取出爪4の先端は突
き進みながら互いに近づき、苗土5の左右の中心線Sに
対して傾斜した略直線状の軌道上を移動することにな
る。また、前記苗取出爪4で苗土5を取出した状態で、
爪ガイド6のガイド部11を苗取出爪4の基部側に位置
する状態から先端側へ移動すると、爪先端間距離Lは狭
い状態から広くなり、これと平行にガイド部11が苗土
5と当接して苗取出爪4から押し出す作用をする。この
とき、苗土5に対して苗取出爪4の先端は、突入した軌
道と略同一軌道で抜けることになり、突入時も離脱時も
苗土5の損傷を最小限に抑える。Therefore, when the seedlings 5 are taken out from the pot part 3, when they are moved forward, the tips of the left and right seedling picking claws 4 approach each other while sticking out, and are inclined with respect to the centerline S on the left and right sides of the seedlings 5. It will move on a substantially linear orbit. Also, in a state where the seedling soil 5 is taken out by the seedling taking-out nail 4,
When the guide part 11 of the claw guide 6 is moved from the state of being located on the base side of the seedling extracting claw 4 to the tip side, the distance L between the claw tips becomes wide from a narrow state, and in parallel with this, the guide part 11 and the seedling soil 5 are formed. It abuts and pushes out from the seedling pick-up nail 4. At this time, the tip of the seedling take-out claw 4 with respect to the seedling 5 will be removed in the same orbit as the plunging orbit, and damage to the seedling 5 will be minimized during the plunging and the detaching.
【0033】なお、前記爪ガイド6は、爪支持体8内に
挿通されていて2重軸状に配置されているが、爪支持体
8と分離してその上下又は左右に平行に配置してもよ
く、また左右苗取出爪4の間に配置させることもでき
る。前記苗取出爪4は図6等に示す側面視において、ポ
ット部3内の苗土5の中心線Sに対して、表面側(ポッ
ト部3の開口縁側)で遠くかつ底面側で近づくように突
入すべく傾斜配置されており、従って、苗土5は略截頭
四角錐形状であるので、その表面下2隅から底面中央へ
2本の苗取出爪4を突き刺すようになり、苗土5の葉及
び根を突き刺すことがなく、またそれに加えて左右苗取
出爪4の先端が狭くなるので、ポット部3の底近傍に衝
突しないようになっている。Although the claw guide 6 is inserted into the claw support 8 and arranged in a double shaft, the claw guide 6 is separated from the claw support 8 and arranged in parallel vertically or horizontally. Alternatively, it may be arranged between the left and right seedling picking nails 4. In the side view shown in FIG. 6 and the like, the seedling take-out nail 4 is far from the center line S of the seedling soil 5 in the pot portion 3 on the front surface side (opening edge side of the pot portion 3) and on the bottom surface side. Since the seedlings 5 are inclined so as to enter, and therefore the seedlings 5 have a substantially truncated pyramid shape, the two seedling picking nails 4 are pierced from the lower two corners of the surface to the center of the bottom face. Since the leaves and roots are not pierced and the tips of the left and right seedling extracting claws 4 are narrowed, they do not collide with the vicinity of the bottom of the pot portion 3.
【0034】図6〜9において、前記保持体9には作動
片81が軸82を介して枢支され、スプリングによって
図6時計方向に付勢されており、この作動片81は1本
の足と左右両腕とを有する略T字形状であり、左腕には
ロック部81Aが、右腕には解除部81Bが、足には押
動部81Cが形成されている。前記爪ガイド6に固着の
作動部材76は爪ガイド6と平行な部分76Aを有し、
この部分76Aは保持体9によって回り止め状態で摺動
が案内されており、その摺動面に突出した前記作動片8
1のロック部81Aと係合して、爪ガイド6の突出方向
の移動が規制されている。6 to 9, an operating piece 81 is pivotally supported by the holding body 9 via a shaft 82 and is urged clockwise by a spring in FIG. 6, and the operating piece 81 is one foot. The left arm has a lock portion 81A, the right arm has a release portion 81B, and the foot has a pushing portion 81C. The operating member 76 fixed to the claw guide 6 has a portion 76A parallel to the claw guide 6,
The slide of this portion 76A is guided by the holding body 9 in a non-rotating state, and the operating piece 8 protruding on the sliding surface thereof.
By engaging with the first lock portion 81A, the movement of the claw guide 6 in the protruding direction is restricted.
【0035】前記爪支持体8の後端の基体65にはロッ
クアーム83が枢支されており、このロックアーム83
はスプリングによって時計方向に付勢されており、前部
側に保持体9の係合部9aと係合可能な被係合部83a
と、傾斜面83bと、前方に突出した突起83cとが形
成されている。爪支持体8は突出した状態でロックアー
ム83の被係合部83aが保持体9の係合部9aと係合
することによりその状態が保持され、作動片81が回動
することによりロック部81Aによる作動部材76の部
分76Aに対するロックが解除され、爪ガイド6が突出
して部分76Aが傾斜面83bと当接することにより、
被係合部83aが係合部9aから離脱され、この離脱が
不完全であっても、作動片81が更に回動することによ
り解除部81Bが突起83cを突き上げて、被係合部8
3aを係合部9aから強制離脱させる。A lock arm 83 is pivotally supported on the base body 65 at the rear end of the pawl support body 8.
Is urged clockwise by a spring, and an engaged portion 83a engageable with the engaging portion 9a of the holding body 9 is provided on the front side.
, An inclined surface 83b, and a projection 83c protruding forward are formed. When the claw support 8 is projected, the engaged portion 83a of the lock arm 83 is engaged with the engaging portion 9a of the holding body 9 to maintain the state, and the operating piece 81 is rotated to lock the claw support 8. The lock of the actuating member 76 with respect to the portion 76A by 81A is released, the claw guide 6 projects, and the portion 76A abuts the inclined surface 83b.
Even if the engaged portion 83a is disengaged from the engaging portion 9a, and the disengagement is incomplete, the release portion 81B pushes up the projection 83c by the further rotation of the operating piece 81, and the engaged portion 8a.
3a is forcibly disengaged from the engaging portion 9a.
【0036】前記作動片81の押動部81Cは、ガイド
板59に位置調整自在に設けたロック解除部材84と当
接することにより回動されるようになっており、保持体
9が苗取出爪4を略下向き姿勢にする図3の状態に移動
してきたときにロック解除部材84と当接して、爪ガイ
ド6を突出させ、その後に爪ガイド6を伴って爪支持体
8を後退させる。なお、ロック解除部材84はボルト又
はピン等で形成されている。The pushing portion 81C of the actuating piece 81 is adapted to be rotated by contacting a lock releasing member 84 which is provided on the guide plate 59 and whose position can be adjusted. When it moves to the state of FIG. 3 in which the claw 4 is in a substantially downward posture, it abuts on the lock releasing member 84 to cause the claw guide 6 to project, and then the claw support 8 is retracted together with the claw guide 6. The lock releasing member 84 is formed of a bolt or a pin.
【0037】前記保持体9、クランク体52、駆動カム
52A、揺動アーム54、ガイド板59及び押出リンク
68等から爪ガイド6及び爪支持体8等を支持し、苗ト
レイ2のポット部3に向く苗土取出し姿勢から植付筒4
3に向く略下向きの苗土離脱姿勢まで姿勢変更しながら
移動し、苗土取出し姿勢で苗土5を取出し、苗土離脱姿
勢で苗土5を落下する動作を行わせる爪動作機構10が
構成されている。The holder 9, the crank 52, the drive cam 52A, the swing arm 54, the guide plate 59, the pushing link 68, and the like support the claw guide 6, the claw support 8, and the like, and the pot portion 3 of the seedling tray 2. From the seedling picking posture toward the planting cylinder 4
The claw movement mechanism 10 is configured to move while changing the posture to the substantially downwardly facing seedling detachment posture facing 3 and take out the seedling 5 in the seedling removal posture and drop the seedling 5 in the seedling detachment posture. Has been done.
【0038】また、ロック部81Aを有する作動片8
1、作動部材76及びロックアーム83等で、爪ガイド
6を爪先端側へ移動したときに爪支持体8と爪ガイド6
とを同時に後退させる戻し連動手段12が構成され、解
除部81Bを有する作動片81及びロックアーム83等
で、戻し連動手段12作動後に爪支持体8の戻り動作を
保障する戻し保障手段13が構成されている。Further, the operating piece 8 having the lock portion 81A
1, the operating member 76, the lock arm 83, and the like, when the claw guide 6 is moved to the claw tip side, the claw support 8 and the claw guide 6
The return interlocking means 12 for simultaneously retracting and is configured, and the operation piece 81 having the releasing portion 81B, the lock arm 83, and the like constitute the return ensuring means 13 for ensuring the return operation of the claw support 8 after the operation of the return interlocking means 12. Has been done.
【0039】図3、11において、15は上下及び前方
が開放した丸めた舌形状の離脱案内体であり、支持フレ
ーム14から突出したブラケット87に位置調整自在に
取り付けられており、植付装置35の植付筒43の上方
に配置されている。この離脱案内体15は、苗取出爪4
が略下向き(若干傾斜している)姿勢になったとき、そ
の苗取出爪4及び爪ガイド6を包囲し、爪ガイド6によ
って苗取出爪4から離脱される苗土5と接触してその落
下を案内し、苗土5を適正な姿勢に保持又は不適正な姿
勢を修正する。In FIGS. 3 and 11, reference numeral 15 is a rounded tongue-shaped removal guide body whose upper and lower sides and front sides are open, which is attached to a bracket 87 protruding from the support frame 14 so as to be positionally adjustable, and a planting device 35. Is arranged above the planting cylinder 43. This detachment guide body 15 is used for the seedling picking nail 4.
When it takes a substantially downward (slightly inclined) posture, it surrounds the seedling take-out claw 4 and the claw guide 6, and comes into contact with the seedling soil 5 that is separated from the seedling take-out claw 4 by the claw guide 6 and falls. And hold the seedling soil 5 in a proper posture or correct the improper posture.
【0040】前記離脱案内体15は、金属、合成樹脂、
バネ材等で、平板状、半割りカップ形状又は棒状等に形
成することができ、苗土5との当接面は、苗土5を適正
姿勢で案内できる形状に形成されている。次に、前記爪
動作機構10による苗取出爪4の苗取出動作を説明す
る。図1、8の状態で、保持体9は苗トレイ2に最接近
した位置にあり、この状態からクランクピン53が揺動
アーム54の長孔55の中央円弧部内で回動すると、押
動リンク68がピン69を中心に揺動され、爪取り付け
具67を介して爪支持体8及び苗取出爪4をポット部3
内の苗土5に向けて前進させる。The separation guide 15 is made of metal, synthetic resin,
The spring material may be formed into a flat plate shape, a half cup shape, a rod shape, or the like, and a contact surface with the seedling soil 5 is formed into a shape that can guide the seedling soil 5 in an appropriate posture. Next, a seedling taking-out operation of the seedling taking-out nail 4 by the nail operating mechanism 10 will be described. In the state of FIGS. 1 and 8, the holding body 9 is at the position closest to the seedling tray 2, and when the crank pin 53 rotates in the central arc portion of the elongated hole 55 of the swing arm 54 from this state, the pushing link 68 is swung about the pin 69, and the nail support 8 and the seedling picking nail 4 are moved to the pot portion 3 via the nail attaching tool 67.
Move it toward the seedling 5 inside.
【0041】このとき、図6に示すように、爪ガイド6
は作動部材76が作動片81に当接していて不動であ
り、基体65が前進することにより、スプリング66、
78が圧縮され、ロックアーム83の被係合部83aは
保持体9の係合部9aに係合して戻り動作が阻止され
る。また、不動のガイド部11に対して苗取出爪4が前
進するため、左右一対の苗取出爪4は枢支部間隔Kより
狭いガイド部11の爪挿通孔11aに規制されて、苗取
出爪4の先端が前進しながらかつ爪先端間距離Lを狭め
ながら苗土5に突き刺さる。側面視において、苗土5の
中心線Sに対して苗取出爪4の突き刺し方向は傾斜し、
苗の茎及び根に突き刺さることはない。At this time, as shown in FIG. 6, the claw guide 6
Is immovable because the operating member 76 is in contact with the operating piece 81, and the base body 65 advances, so that the spring 66,
78 is compressed, the engaged portion 83a of the lock arm 83 engages with the engaging portion 9a of the holding body 9, and the return operation is blocked. Further, since the seedling take-out claws 4 move forward with respect to the immovable guide part 11, the pair of left and right seedling take-out claws 4 are restricted by the claw insertion holes 11a of the guide part 11 which are narrower than the interval K between the pivot parts, and the seedling take-out claws 4 are cut. Pierces the seedling 5 while advancing the tip of the and while narrowing the distance L between the tips of the nails. In a side view, the piercing direction of the seedling take-out nail 4 is inclined with respect to the center line S of the seedling soil 5,
It does not penetrate the stems and roots of seedlings.
【0042】この突き刺さり状態では左右苗取出爪4
は、図9の2点鎖線状態から実線状態となって、広いV
字状から狭いV字状に変化する。この苗取出爪4のV字
状態は、平行状の場合よりも苗土5の抜けが少なく、ポ
ット部3から強力に取出すことができ、しかも変化時に
苗土5を挟み付けるようにしたものでないので、苗土5
を破損することもない。In this stuck state, the left and right seedling take-out nails 4
Shows a wide V from the two-dot chain line state in FIG. 9 to the solid line state.
It changes from a letter shape to a narrow V shape. The V-shaped state of the seedling take-out claw 4 is such that the seedling soil 5 is less likely to come off than in the case of being parallel and can be strongly taken out from the pot part 3, and the seedling soil 5 is not pinched at the time of change. So 5 seedlings
Will not be damaged.
【0043】またこのとき、裏当て部材89によって苗
取出位置のポット部3の底部が支持されて、苗トレイ2
の変形が阻止され、苗取出爪4による安定した苗土5の
取出しが保障されている。苗取出爪4による苗土5の突
き刺し完了後に、クランク体52が回転すると、クラン
クピン53を介して揺動アーム54が左方向に揺動し、
苗取出爪4と爪ガイド6とを共に苗トレイ2から引き離
し、図2の状態を経て、往動軌跡X上を移動する。At this time, the bottom of the pot portion 3 at the seedling take-out position is supported by the backing member 89, and the seedling tray 2
The deformation of the seedlings is prevented, and the stable extraction of the seedling soil 5 by the seedling extraction nails 4 is guaranteed. When the crank body 52 rotates after completion of the stab of the seedling soil 5 by the seedling take-out claw 4, the swing arm 54 swings leftward via the crank pin 53,
The seedling take-out nail 4 and the nail guide 6 are both separated from the seedling tray 2 and moved on the forward movement path X through the state of FIG.
【0044】往動軌跡X上の移動では、保持体9はそれ
に設けたローラ57がガイド板59のカム溝60に案内
され、これにより苗取出爪4及び爪ガイド6は、略水平
の取出し姿勢から図3に示す略下向きの離脱姿勢に変更
され、ローラ57がカム溝60の後端近傍まで移動して
くると、作動片81の押動部81Cがロック解除部材8
4に当接し始める。When the holder 9 is moved along the forward trajectory X, the rollers 57 provided on the holder 9 are guided by the cam grooves 60 of the guide plate 59, whereby the seedling take-out claws 4 and the claw guides 6 are in a substantially horizontal take-out posture. When the roller 57 moves to the vicinity of the rear end of the cam groove 60 when the roller 57 is changed to a substantially downward disengagement posture shown in FIG. 3, the pushing portion 81C of the operating piece 81 is unlocked by the unlocking member 8.
Start contacting 4.
【0045】作動片81がロック解除部材84に当接し
て回動を開始(戻し連動手段12の作動)すると、ロッ
ク部81Aが作動部材76のロックを解除し、爪ガイド
6はそれまで圧縮されていたスプリング78によって弾
発的に突出され、図3の2点鎖線及び図7に示すよう
に、不動の苗取出爪4に対して爪先端側へ前進し、突き
刺していた苗土5を押し出して離脱させる。When the operating piece 81 comes into contact with the lock releasing member 84 and starts rotating (the operation of the return interlocking means 12), the lock portion 81A releases the lock of the operating member 76, and the claw guide 6 is compressed until then. 3 is elastically projected by the spring 78, and as shown in the chain double-dashed line in FIG. 3 and in FIG. 7, it moves forward to the nail tip side with respect to the stationary seedling take-out nail 4 and pushes out the stabbed seedling soil 5. And let go.
【0046】このとき、爪ガイド6のガイド部11の前
面の押圧面は、苗土5を損傷することがないように大き
な面積で当接され、離脱された苗土5は離脱案内体15
に案内されてその姿勢が適正にされ、また植付装置35
の植付筒43に向けて落下し、受渡しが行われる。前記
爪ガイド6が突出されるとロックを解除された作動部材
76は一体的に移動し、図7に示すように、部分76A
がロックアーム83の傾斜面83bに当接して被係合部
83aと係合部9aの係合を解除する。そのため突出状
態に保持されていた爪支持体8は、圧縮状態にあったス
プリング66によって弾発的に後退される。At this time, the pressing surface of the front surface of the guide portion 11 of the claw guide 6 is brought into contact with a large area so as not to damage the seedling 5, and the detached seedling 5 is removed by the detachment guide body 15.
Is guided to the proper posture, and the planting device 35
It drops toward the planting cylinder 43 and is delivered. When the pawl guide 6 is projected, the unlocked actuating member 76 moves integrally, and as shown in FIG.
Contacts the inclined surface 83b of the lock arm 83 to release the engagement between the engaged portion 83a and the engaging portion 9a. Therefore, the claw support 8 held in the protruding state is elastically retracted by the spring 66 in the compressed state.
【0047】このとき、爪ガイド6の後端の作動部材7
6は基体65の背面にクッション88を介して当接して
いるので、爪支持体8の後退に伴って爪ガイド6も後退
され、両者はスプリング66で素早く後退するので、落
下する苗土5の葉との爪ガイド6の接触が可及的に回避
される。また、爪ガイド6の移動抵抗が大き過ぎる等の
何らかの理由で、部分76Aがロックアーム83の傾斜
面83bを持ち上げられなかった場合は、ローラ57が
カム溝60の後端に移動したとき、ロック解除部材84
によって作動片81が更に回動して、解除部81Bで突
起83cを介してロックアーム83を回動(保障手段1
3の作動)し、被係合部83aを係合部9aから強制的
に離脱させ、苗取出爪4の後退を保障する。これによ
り、苗取出爪4上の苗土5を爪ガイド6で離脱できなく
とも、苗取出爪4が後退することにより、苗土5から爪
ガイド6に当たりにいって離脱されることになる。At this time, the operating member 7 at the rear end of the claw guide 6
Since 6 is in contact with the back surface of the base body 65 via the cushion 88, the claw guide 6 is also retracted as the claw support 8 is retracted, and both are quickly retracted by the spring 66, so that the falling seedling soil 5 is prevented. Contact of the claw guide 6 with the leaves is avoided as much as possible. If the portion 76A cannot lift the inclined surface 83b of the lock arm 83 due to some reason such as the movement resistance of the claw guide 6 being too large, when the roller 57 moves to the rear end of the cam groove 60, the lock is generated. Release member 84
The operating piece 81 is further rotated by this, and the lock arm 83 is rotated via the projection 83c at the releasing portion 81B (ensuring means 1
3), the engaged portion 83a is forcibly disengaged from the engaging portion 9a, and the backward movement of the seedling take-out claw 4 is ensured. As a result, even if the seedling soil 5 on the seedling taking-out nail 4 cannot be removed by the nail guide 6, the seedling taking-out nail 4 is retracted so that the seedling soil 5 hits the nail guide 6 and is removed.
【0048】これで図4に示すように、苗取出爪4及び
爪ガイド6は共に後退位置に戻り、作動部材76はロッ
ク可能状態になる。この状態からのクランク体52の回
転は、揺動アーム54を右方向に揺動し、図1の状態ま
で保持体9を姿勢変更しながら移動して、苗取出爪4を
復動軌跡Y上で早戻りさせる。この復動軌跡Y上の移動
では、苗取出爪4及び爪ガイド6が苗トレイ2に近づく
手前から、駆動カム52Aの突部がガイド板59のロー
ラ61に作用し、下向き姿勢から急激に略水平の姿勢に
変更され、これにより苗土5の葉をすくい上げるよう
に、又は葉の下側にすくい込むように突入開始位置に進
出し、苗取出爪4の突出軌道上に葉がないようにする。Then, as shown in FIG. 4, both the seedling take-out claw 4 and the claw guide 6 are returned to the retracted position, and the operating member 76 is locked. When the crank body 52 is rotated from this state, the swing arm 54 is swung to the right, and the holding body 9 is moved to the state shown in FIG. To go back fast. In the movement on the backward movement locus Y, the protrusion of the drive cam 52A acts on the roller 61 of the guide plate 59 from before the seedling take-out claw 4 and the claw guide 6 approach the seedling tray 2, and abruptly changes from the downward posture. Changed to a horizontal posture, so that the seedlings 5 advance to the plunge start position so as to scoop up the leaves of the seedlings 5 or to scoop them under the leaves, so that there are no leaves on the projecting track of the seedling ejection claw 4. To do.
【0049】なお、図1〜4には、苗土5に苗取出爪4
を突き刺したときから植付筒37の上方で苗土5を落下
させるときまでの苗取出過程(往行程)の苗取出爪4の
先端部の軌跡Xを1点鎖線で、復行程の苗取出爪4の先
端部の軌跡Yを2点鎖線で示している。搬送装置34
は、図5、12〜14に示すように、運転席27の後方
に配置されると共に、主フレーム33に固定されたサポ
ートフレーム91にガイドレール等を介して左右方向移
動支持された可動枠92を備えている。It should be noted that, in FIGS. 1 to 4, the seedling take-out nail 4 is attached to the seedling soil 5.
From the time of piercing the seedling to the time of dropping the seedling soil 5 above the planting cylinder 37, the locus X of the tip of the seedling take-out nail 4 in the seedling take-out process (forward stroke) is indicated by a one-dot chain line, and the seedling is taken out during the backward stroke. The locus Y of the tip of the claw 4 is shown by a two-dot chain line. Transport device 34
As shown in FIGS. 5 and 12 to 14, the movable frame 92 is arranged at the rear of the driver's seat 27 and is supported by the support frame 91 fixed to the main frame 33 in the left-right direction via guide rails or the like. Is equipped with.
【0050】この可動枠92は前傾状に配置され、前記
苗トレイ2は、ポット部3の開口が後上方を向くように
可動枠92の上部側から可動枠後面に沿って装填され、
可動枠92の横移動で左右方向に横送りされると共に、
可動枠92内で下方に縦送りされるように構成されてい
る。なお、この可動枠92には上下に2枚の苗トレイ2
が装填できるようになっている。The movable frame 92 is arranged forwardly, and the seedling tray 2 is loaded from the upper side of the movable frame 92 along the rear surface of the movable frame so that the opening of the pot portion 3 faces upward and rearward.
The lateral movement of the movable frame 92 laterally feeds it,
It is configured to be vertically fed in the movable frame 92. It should be noted that the movable frame 92 has two seedling trays 2 arranged vertically.
Can be loaded.
【0051】可動枠92には、苗トレイ2の底部(すな
わちポット部3の底部)を横一列のポット部3に亘って
支持案内する支持板93が取付けられている。この支持
板93は、苗取出爪4によって苗土5が取出される位置
のポット部3にまで延設されており、この支持板93の
先端部が、苗取出爪4を苗土5に突き刺したときの苗ト
レイ2の撓みを阻止し、苗取出爪4による安定した苗土
5の取出しをするための裏当て部材89となっている。The movable frame 92 is provided with a support plate 93 for supporting and guiding the bottom portion of the seedling tray 2 (that is, the bottom portion of the pot portion 3) across the pot portions 3 arranged in a row. The support plate 93 is extended to the pot portion 3 at a position where the seedling extraction nail 4 takes out the seedling soil 5, and the tip of the support plate 93 pierces the seedling extraction nail 4 into the seedling soil 5. It serves as a backing member 89 for preventing the seedling tray 2 from flexing when it is struck and for stably taking out the seedling soil 5 by the seedling taking-out nail 4.
【0052】サポートフレーム91には、エンドレスの
螺旋溝を有する横送り軸102が回転自在に支持され、
この横送り軸102に苗取出装置1側からの動力が伝達
可能になっており、この横送り軸102と可動枠92と
の間に可動枠92を横送りする横送り機構103が設け
られており、この横送り機構103で可動枠92を、苗
トレイ2の略全幅だけ左右方向に往復横送り可能にして
いる。A lateral feed shaft 102 having an endless spiral groove is rotatably supported on the support frame 91,
Power from the seedling take-out device 1 side can be transmitted to the lateral feed shaft 102, and a lateral feed mechanism 103 for laterally feeding the movable frame 92 is provided between the lateral feed shaft 102 and the movable frame 92. The horizontal feed mechanism 103 enables the movable frame 92 to reciprocate horizontally in the left-right direction over substantially the entire width of the seedling tray 2.
【0053】また、可動枠92下部には、横軸94が回
動自在に取付けられており、この横軸94には左右一対
の縦送りホイール95がワンウエイクラッチを介して設
けられ、このホイール95には、可動枠92の上部に設
けられた従動ホイール96とにわたってチェーン97が
掛装され、このチェーン97に、縦方向のポット部3間
の間隙に係合する搬送ピン98が取付けられている。A horizontal shaft 94 is rotatably attached to the lower part of the movable frame 92, and a pair of left and right vertical feed wheels 95 are provided on the horizontal shaft 94 via a one-way clutch. A chain 97 is hooked over the driven wheel 96 provided on the upper part of the movable frame 92, and a transport pin 98 that engages with a gap between the pot portions 3 in the vertical direction is attached to the chain 97. .
【0054】前記横送り軸102と横軸94との間に
は、横送りされてきた可動枠92がその左右移動終端に
達したときに、苗トレイ2の1つのポット部間ピッチに
相当する距離だけ、縦送りホイール95を介してチェー
ン97を間欠移動する間欠送り手段99が設けられ、前
記縦送りホイール95、チェーン97、搬送ピン98及
び間欠送り手段99等によって、苗トレイ2を横送り後
に1ピッチだけ縦送りする間欠縦送り機構100が構成
されている。Between the horizontal feed shaft 102 and the horizontal shaft 94, when the laterally fed movable frame 92 reaches the end of its horizontal movement, it corresponds to one pot pitch between the seedling trays 2. Intermittent feed means 99 for intermittently moving the chain 97 through the vertical feed wheel 95 by a distance is provided, and the vertical feed wheel 95, the chain 97, the transport pin 98, the intermittent feed means 99 and the like feed the seedling tray 2 laterally. An intermittent vertical feed mechanism 100 that vertically feeds one pitch later is configured.
【0055】なお、本発明は前記実施例に限定されるも
のではなく、種々変形することができる。苗取出装置1
における、爪ガイド6で爪先端間距離Lを開閉する方法
及び装置は、従来技術の構成にも適用でき、苗土5を取
出した後の苗取出爪4及び爪ガイド6を更に水平に後退
移動するように構成するならば、苗取出爪4の下方にベ
ルトコンベヤを配置しておいて、このベルトコンベヤ上
に苗土5を載置して植付装置35まで搬送するようにし
てもよい。The present invention is not limited to the above embodiment, but can be variously modified. Seedling extractor 1
The method and device for opening and closing the distance L between the nail tips with the nail guide 6 can also be applied to the configuration of the prior art, and the seedling take-out nail 4 and the nail guide 6 after the seedling soil 5 is taken out are further horizontally moved backward. If configured to do so, a belt conveyor may be arranged below the seedling take-out claw 4, and the seedling soil 5 may be placed on this belt conveyor and conveyed to the planting device 35.
【0056】移植機21の移植装置23は、走行車輛に
装着した乗用型を示しているが、自走式歩行型に構成し
たり、1条植えの他2条以上の多条植えに構成したりす
ることができる。The transplanting device 23 of the transplanting machine 21 is a riding type mounted on a traveling vehicle, but it may be a self-propelled walking type or a multi-row planting of two or more rows in addition to one row planting. You can
【0057】[0057]
【発明の効果】以上詳述した本発明によれば、苗取出時
に一対の苗取出爪4をポット部3内の苗土5に対して前
進させながら、爪ガイド6で爪先端間距離Lを狭めてい
き、苗離脱時に爪ガイド6を爪先端側へ移動して苗取出
爪4から苗土5を押出ながら、爪ガイド6で苗取出爪4
の爪先端間距離Lを広げていくので、苗取出爪4は苗土
5に対して略直線の軌道で開閉でき、苗取出爪4で苗土
5を破損することなく迅速かつ正確に取出しかつ爪ガイ
ド6を介して離脱させることができる。According to the present invention described in detail above, while the pair of seedling take-out nails 4 is advanced with respect to the seedling soil 5 in the pot portion 3 at the time of taking out the seedlings, the distance L between the nail tips is set by the nail guide 6. When the seedlings are removed, the nail guide 6 is moved to the tip side of the nails to push out the seedling soil 5 from the seedling take-out nails 4 while the seedlings are taken out from the seedlings.
Since the distance L between the nail tips is expanded, the seedling take-out nail 4 can be opened and closed with respect to the seedling soil 5 in a substantially straight line trajectory, and the seedling take-out nail 4 can quickly and accurately take out the seedling soil 5 without damaging the seedling soil 5. It can be detached via the claw guide 6.
【0058】苗取出爪4が略下向き姿勢になったときに
爪動作機構10によって爪先端側へ移動される爪ガイド
6は一対の苗取出爪4を同時に案内するガイド部11を
有し、このガイド部11に両苗取出爪4間に跨がる押出
面を形成しているので、ポット部3から植付筒43へ苗
土5を、損傷することなく迅速かつ確実に受渡しするこ
とができる。The nail guide 6 which is moved to the nail tip side by the nail operating mechanism 10 when the seedling take-out nail 4 is in a substantially downward posture has a guide portion 11 for guiding the pair of seedling take-out nails 4 at the same time. Since the guide portion 11 is formed with the extruding surface extending between the two seedling take-out nails 4, the seedling soil 5 can be delivered from the pot portion 3 to the planting cylinder 43 quickly and reliably without damage. .
【0059】爪ガイド6のガイド部11は、一対の苗取
出爪4を枢支部より先端側で枢支部間隔Kよりも短い間
隔で案内するので、苗取出爪4を枢支しガイド部11を
設けるだけの簡単な構成で、苗土5を破損することなく
離脱させることができる。Since the guide portion 11 of the nail guide 6 guides the pair of seedling take-out nails 4 on the tip side of the pivotal portion at a distance shorter than the pivotal portion spacing K, the guide portion 11 is pivotally supported by the guide portion 11. It is possible to remove the seedling soil 5 without damaging the seedling soil 5 with a simple configuration provided.
【図1】本発明の実施例を示す苗取出直前の断面側面図
である。FIG. 1 is a cross-sectional side view immediately before taking out seedlings showing an embodiment of the present invention.
【図2】同苗取出直後の断面側面図である。FIG. 2 is a sectional side view immediately after taking out the seedlings.
【図3】同苗離脱直前の断面側面図である。FIG. 3 is a sectional side view immediately before leaving the seedling.
【図4】同苗離脱直後の断面側面図である。FIG. 4 is a cross-sectional side view immediately after the seedling is detached.
【図5】苗取出装置と搬送装置との関係を示す側面図で
ある。FIG. 5 is a side view showing a relationship between a seedling take-out device and a carrying device.
【図6】苗取出装置の要部の苗突き刺し時の断面側面図
である。FIG. 6 is a cross-sectional side view of the main part of the seedling take-out device when the seedling is pierced.
【図7】苗取出装置の要部の苗離脱時の断面側面図であ
る。FIG. 7 is a cross-sectional side view of the main part of the seedling take-out device when the seedling is removed.
【図8】苗取出装置の要部の苗突き刺し前の断面側面図
である。FIG. 8 is a sectional side view of a main part of the seedling take-out device before the seedling is pierced.
【図9】苗取出装置の要部の苗突き刺し時の断面平面図
である。FIG. 9 is a cross-sectional plan view of the main part of the seedling take-out device when the seedling is pierced.
【図10】苗取出装置の要部の背面図である。FIG. 10 is a rear view of the main part of the seedling take-out device.
【図11】離脱案内体の斜視図である。FIG. 11 is a perspective view of a separation guide body.
【図12】移植機の全体側面図である。FIG. 12 is an overall side view of the transplanter.
【図13】移植機の全体平面図である。FIG. 13 is an overall plan view of the transplanter.
【図14】移植装置の全体側面図である。FIG. 14 is an overall side view of the implanting device.
1 苗取出装置 2 苗トレイ 3 ポット部 4 苗取出爪 5 苗土 6 爪ガイド 8 爪支持体 9 保持体 10 爪動作機構 11 ガイド部 12 戻し連動手段 13 保障手段 14 支持フレーム 15 離脱案内体 21 移植機 34 搬送装置 35 植付装置 43 植付筒 L 爪先端間距離 K 枢支部間隔 X 往行程 Y 復行程 S 苗土中心線 1 Seedling take-out device 2 Seedling tray 3 Pot part 4 Seedling take-out claw 5 Seedling soil 6 Claw guide 8 Claw support 9 Holding body 10 Claw operating mechanism 11 Guide part 12 Return interlocking means 13 Guarantee means 14 Support frame 15 Release guide 21 Transplant Machine 34 Transporting device 35 Planting device 43 Planting tube L Distance between claw tips K Distance between pivotal supports X Forward stroke Y Return stroke S Soil seedling center line
Claims (3)
に対して、互いに離れて位置する一対の苗取出爪(4)
を突入しかつ退出することで、ポット部(3)から苗土
(5)を取出し、苗取出爪(4)に嵌合した爪ガイド
(6)を爪先端側へ移動して、苗取出爪(4)から苗土
(5)を離脱する移植機の苗取出方法であって、 前記苗取出時に一対の苗取出爪(4)をポット部(3)
内の苗土(5)に対して前進させながら、爪ガイド
(6)で爪先端間距離(L)を狭めていき、苗離脱時に
爪ガイド(6)を爪先端側へ移動して苗取出爪(4)か
ら苗土(5)を押出ながら、爪ガイド(6)で苗取出爪
(4)の爪先端間距離(L)を広げていくことを特徴と
する移植機の苗取出方法。1. A pot section (3) in a seedling tray (2).
With respect to the pair of seedling picking nails (4) located apart from each other
The seedlings (5) from the pot part (3) by rushing in and out of the pots, and moving the nail guide (6) fitted to the seedling taking-out nails (4) to the tip side of the nails to take out the seedling taking-out nails. A method of removing seedlings from a transplanter for removing seedlings (5) from (4), wherein a pair of seedling removing claws (4) are provided at the pot portion (3) when the seedlings are removed.
While advancing with respect to the seedling soil (5) inside, the nail guide (6) narrows the distance (L) between the nail tips, and when the seedling is removed, the nail guide (6) is moved to the nail tip side to take out the seedlings. A method for removing seedlings from a transplanter, characterized in that the distance (L) between the tip ends of the nails (4) for extracting seedlings is expanded by a nail guide (6) while pushing out the seedlings (5) from the nails (4).
の苗土(5)に突入可能な一対の苗取出爪(4)と、こ
の一対の苗取出爪(4)を互いに離して先端に枢支した
爪支持体(8)と、一対の苗取出爪(4)の進退を案内
する爪ガイド(6)と、前記爪支持体(8)及び爪ガイ
ド(6)をそれぞれ往復動自在に支持する保持体(9)
と、爪支持体(8)及び爪ガイド(6)をそれぞれ往復
動させると共に苗取出爪(4)をポット部(3)に向く
姿勢から植付装置(35)の植付筒(43)に対向する
略下向き姿勢まで移動させる爪動作機構(10)とを有
する移植機の苗取出装置であって、 前記苗取出爪(4)が略下向き姿勢になったときに爪動
作機構(10)によって爪先端側へ移動される爪ガイド
(6)は一対の苗取出爪(4)を同時に案内するガイド
部(11)を有し、このガイド部(11)に両苗取出爪
(4)間に跨がる押出面を形成していることを特徴とす
る移植機の苗取出装置。2. The pot section (3) in the seedling tray (2)
Pair of seedling take-out claws (4) capable of plunging into the seedling soil (5), a pair of seedling take-out claws (4) separated from each other, and a nail support (8) pivotally supported at the tip, and a pair of seedling take-out A claw guide (6) for guiding the forward and backward movement of the claw (4), and a holding body (9) for reciprocally supporting the claw support (8) and the claw guide (6), respectively.
And the nail support (8) and the nail guide (6) are reciprocally moved, and the seedling picking nail (4) is turned from the posture facing the pot part (3) to the planting cylinder (43) of the planting device (35). A seedling take-out device of a transplanter, which has a claw operating mechanism (10) for moving to a substantially downward facing position, and is provided by the claw operating mechanism (10) when the seedling taking claw (4) is in a substantially downward facing posture. The nail guide (6) which is moved to the tip side of the nail has a guide portion (11) for simultaneously guiding the pair of seedling taking nails (4), and the guide portion (11) has a space between both seedling taking nails (4). A seedling take-out device for a transplanter, which is characterized in that it has an extruded surface that extends across it.
は、一対の苗取出爪(4)を枢支部より先端側で枢支部
間隔(K)よりも短い間隔で案内することを特徴とする
請求項2に記載の移植機の苗取出装置。3. A guide portion (11) of the claw guide (6).
3. The seedling taking-out device for a transplanter according to claim 2, wherein the pair of seedling taking-out claws (4) guides the pair of seedling taking-out claws (4) on the tip side of the pivotal portion at intervals shorter than the pivotal portion spacing (K).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03735495A JP3238598B2 (en) | 1995-02-24 | 1995-02-24 | Method and apparatus for removing seedlings from transplanter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP03735495A JP3238598B2 (en) | 1995-02-24 | 1995-02-24 | Method and apparatus for removing seedlings from transplanter |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP02317195A Division JP3238597B2 (en) | 1995-02-10 | 1995-02-10 | Method and apparatus for removing seedlings from transplanter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH08214627A true JPH08214627A (en) | 1996-08-27 |
JP3238598B2 JP3238598B2 (en) | 2001-12-17 |
Family
ID=12495222
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP03735495A Expired - Fee Related JP3238598B2 (en) | 1995-02-24 | 1995-02-24 | Method and apparatus for removing seedlings from transplanter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3238598B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103371011A (en) * | 2012-04-25 | 2013-10-30 | 井关农机株式会社 | Transplanting machine |
-
1995
- 1995-02-24 JP JP03735495A patent/JP3238598B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103371011A (en) * | 2012-04-25 | 2013-10-30 | 井关农机株式会社 | Transplanting machine |
Also Published As
Publication number | Publication date |
---|---|
JP3238598B2 (en) | 2001-12-17 |
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