JP2509846Y2 - Seedling removal mechanism - Google Patents

Description

【考案の詳細な説明】 〔産業上の利用分野〕 本考案は、野菜の苗等の移植機等における苗取出し機
構の構造に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to the structure of a seedling take-out mechanism in a transplanter or the like for vegetable seedlings.

〔従来の技術と考案が解決しようとする課題〕[Problems to be solved by conventional techniques and devices]

本出願人は、先に実願平１−107454号で、野菜苗の移
植機の構成として、走行機体下部に畝上面に苗を移植す
るための移植機構を設け、走行機体上部には、苗載置部
における苗収容箱の上面に向かって遠近上下揺動する一
対の爪体を備えた苗取出し機構を設けることを提案し
た。The applicant of the present application, in Japanese Utility Model Application No. 1-107454, previously provided a transplanting mechanism for transplanting seedlings on the upper surface of the ridge at the lower part of the traveling machine body as a configuration of a transplanting machine for vegetable seedlings, and at the upper part of the traveling machine body, It was proposed to provide a seedling take-out mechanism with a pair of claws that vertically and vertically swing toward the upper surface of the seedling storage box in the placing part.

この構成における苗取出し機構では、下降行程下限近
傍で一対の爪体の下端部で前記プラグ苗を摘んで、その
状態で爪体は上昇し、上昇行程上限位置近傍で一対の爪
体の下端の間隔が開いてプラグ苗を離すようにしてい
る。In the seedling take-out mechanism in this configuration, the plug seedlings are picked at the lower ends of the pair of claws near the lower limit of the stroke, the claws rise in that state, and the lower ends of the pair of claws near the upper limit of the upward stroke. There is an interval so that the plug seedlings are separated.

しかしながら、プラグ苗における土等の粘着力のた
め、前記開いた爪体からプラグ苗が離れない事態が生
じ、苗植えの欠株箇所ができたり、次のプラグ苗の摘み
作業を不良にし、または不能にするという問題があっ
た。However, due to the adhesive force of soil or the like in the plug seedling, a situation occurs where the plug seedling cannot be separated from the open nail body, a missing part of the seedling is made, or the next plug seedling picking operation is impaired, or There was the problem of disabling.

本考案は、これらの問題を解決することを目的とする
ものである。The present invention aims to solve these problems.

〔課題を解決するための手段〕[Means for solving the problem]

この目的を達成するため、本考案は、走行機体に設け
た苗取出し部におけるプラグ苗箇所に対して一対の爪体
が上下に遠近揺動し、且つ下降行程で一対の爪体の先端
部で前記プラグ苗を摘み取出し、上昇行程終端近傍で一
対の爪体の先端部の間隔が開いてプラグ苗を放出するよ
うに構成して成る苗取出し機構において、前記一対の爪
体のうち少なくとも一方に、その長手方向に沿って移動
自在な押出し管体を遊嵌し、該押出し管体を、両爪体が
下降するとき当該爪体の基端方向に後退させ、両爪体の
先端部間隔が開くときに、該押出し管体を、その先端が
爪体の先端部方向に近付くように前進するように構成し
たものである。In order to achieve this object, the present invention has a pair of claws vertically oscillating with respect to a plug seedling portion in a seedling take-out portion provided on a traveling machine body, and at a tip end of the pair of claws in a descending stroke. The plug seedling is picked and taken out, and in the seedling taking-out mechanism configured to release the plug seedling with a gap between the tip end portions of the pair of nail bodies in the vicinity of the end of the ascending stroke, in at least one of the pair of nail bodies. , A push-out tube body that is movable along its longitudinal direction is loosely fitted, and the push-out tube body is retracted toward the base end direction of the claw bodies when the claw bodies descend, so that the distance between the tip ends of the claw bodies is reduced. When opened, the push-out tube body is configured to advance so that its tip approaches the tip end direction of the claw body.

〔考案の作用・効果〕[Function and effect of device]

この構成によれば、苗取出し機構における一対の爪体
が下降して、その先端部で苗取出し部のプラグ苗を摘
み、その状態で一対の爪体が上昇して、その上昇行程終
端近傍で一対の爪体の先端部の間隔が開いてプラグ苗を
放出する。According to this configuration, the pair of claws in the seedling take-out mechanism descends, picks up the plug seedlings in the seedling take-out part at its tip, and the pair of claws rises in that state, near the end of the ascending stroke. The pair of claws are opened at intervals between the tips to release the plug seedlings.

このように往復上下揺動する一対の爪体のうち少なく
とも一方には、押圧し管体を移動自在に遊嵌してあり、
この押出し管体は、両爪体が下降するときには当該爪体
の基端側に後退するから、両爪体の先端部でプラグ苗を
摘むときには、その箇所に押出し管体がない状態を保持
でき、押出し管体が邪魔にならない。In this way, at least one of the pair of claws that reciprocate vertically swings, and the tube body is movably fitted so as to be pressed,
This extruded tube retreats to the proximal end side of both claws when both claws descend, so when picking plug seedlings at the tip of both claws, it is possible to keep the extruded tube at that location. , Extruded tube does not get in the way.

他方、前記一対の爪体が上昇して両爪体の先端部の間
隔が開くとき、その爪体の先端部に向かって押出し管体
の先端が近付くように前進するので、万一、爪体の先端
部にプラグ苗が付着していても、押出し管体の先端がプ
ラグ苗と爪体との付着部を分離するように入り込み、プ
ラグ苗を押し出すから、当該プラグ苗を爪体から分離さ
せることを確実に実行でき、苗植え作業時に欠株ができ
るという事故を確実に防止できるという効果を奏するの
である。On the other hand, when the pair of claws are lifted to open the space between the tips of the claws, the tip of the pushing tube body moves forward toward the tips of the claws. Even if the plug seedling is attached to the tip of the plug, the tip of the extruded tube enters so as to separate the attachment part between the plug seedling and the nail body and pushes out the plug seedling, so that the plug seedling is separated from the nail body. That is, it is possible to surely carry out the above, and it is possible to surely prevent an accident that a stock stapling occurs during seedling planting work.

しかも、押出し管体は常時爪体に遊嵌しているので、
プラグ苗の苗部分に触れることが少なくなり、苗の損傷
も回避することができるという顕著な効果を奏するので
ある。Moreover, since the extruded tube is always loosely fitted in the claw,
The plugged seedlings are less likely to come into contact with the seedlings, and the damage to the seedlings can be avoided, which is a remarkable effect.

〔実施例〕〔Example〕

次に野菜苗の移植機に適用した実施例について説明す
ると、図において移植機１は、前部にエンジン３を搭載
した平面視前後長手の矩形枠状の走行機体２と、畝間8b
を走行する左右一対の前輪4,4及び後輪5,5と、前記走行
機体２から後向きに突設したハンドル６と、走行機体２
から下向きに突出して畝８の上面を押圧する一つの鎮圧
輪７と、畝８を覆う合成樹脂製のマルチフイルム９に苗
移植箇所の孔11を穿設するマルチカッター10と、移植装
置12と、走行機体２の後部に高さ調節可能に取付く左右
一対の覆土輪13,13とから成る。Next, a description will be given of an example applied to a plant for transplanting vegetable seedlings. In the figure, the transplanter 1 has a rectangular frame-shaped traveling machine body 2 having an engine 3 mounted in the front part and having a longitudinal length in plan view, and a furrow 8b.
A pair of left and right front wheels 4, 4 and rear wheels 5, 5 traveling on the road, a handle 6 protruding rearward from the traveling machine body 2, and a traveling machine body 2
One compression wheel 7 that protrudes downward from the ridge 8 and presses the upper surface of the ridge 8, a multi-cutter 10 that punches a hole 11 at a seedling transplant site in a synthetic resin multi-film 9 that covers the ridge 8, and a transplant device 12. , A pair of left and right soil-covering wheels 13, 13 which are mounted on the rear portion of the traveling machine body 2 in a height-adjustable manner.

前記移植装置12は、合成樹脂製の苗収容箱Ａを移植機
１の後部に向かって移送する搬送機構14と、苗収容箱Ａ
に左右及び前後に一定間隔で並設されたポット部ａから
レタス等の野菜のプラグ苗Ｐを挟んで取り出す苗取出し
機構15と、前記取り出されたプラグ苗Ｐを下方の移植機
構16に向かって搬送するための案内搬送機構17とからな
り、移植機構16では、プラグ苗Ｐを前記孔11箇所の畝８
上面部（畝床）に移植するものである。The transplanting device 12 includes a transport mechanism 14 for transferring the synthetic resin seedling storage box A toward the rear portion of the transplanter 1, and a seedling storage box A.
A seedling taking-out mechanism 15 for taking out the plug seedlings P of vegetables such as lettuce from the pot portions a arranged side by side at right and left and front and back, and the taken-out plug seedlings P toward the lower transplanting mechanism 16. The transplanting mechanism 16 comprises a guide transporting mechanism 17 for transporting, and in the transplanting mechanism 16, the plug seedlings P are provided at the ridges 8 at the 11 locations.
It is to be transplanted to the upper surface (ridge).

また、移植機構16における左右２つ割り半円錐筒状の
押し込み体18と、前記マルチカッター10とは、同期して
上下回動するように構成されている。Further, the pushing member 18 in the left-right halved semi-conical cylinder shape in the transplantation mechanism 16 and the multi-cutter 10 are configured to rotate up and down in synchronization.

前記走行機体２下部に装着した駆動車軸20の左右両側
に上下回動自在に枢支された左右一対の中空状のスイン
グアーム21,21の後部に各々前輪４を装着し、前記エン
ジン３からの動力をミッションケース22を介して駆動車
軸20に伝達し、各スイングアーム21内のチェーンを介し
て前輪４を駆動する。A front wheel 4 is attached to the rear of each of a pair of left and right hollow swing arms 21, 21 pivotally supported on both left and right sides of a drive axle 20 attached to the lower part of the traveling machine body 2, and the front wheel 4 is attached to the engine 3. Power is transmitted to the drive axle 20 via the mission case 22, and the front wheels 4 are driven via the chains in each swing arm 21.

左右一対の後輪5,5は棒状のスイングアーム25,25の後
部に各々取付き、この左右両スイングアーム25,25の基
部（前部）を、走行機体２の左右両側から下向きに突出
した支持枠23,23に突設した横軸24,24に各々回動自在に
枢支する。The pair of left and right rear wheels 5, 5 are attached to the rear portions of the rod-shaped swing arms 25, 25, respectively, and the bases (front portions) of the left and right swing arms 25, 25 are projected downward from the left and right sides of the traveling body 2. Horizontal shafts 24, 24 projecting from the support frames 23, 23 are rotatably supported.

符号26は前後四輪4,5を走行機体２に対して一斉に高
さ調節できる車高調節できる上下連動機構で、左側の前
後スイングアーム21,25に各々突出するアームに枢着す
る連杆27と、右側の前後スイングアーム21,25に各々突
出するアームに枢着する連杆27と、走行機体２にその前
後方向に位置調節可能に取付くばね収容枠体28に前後移
動自在且つ軸線回りに回動自在に設けた揺動軸29と、こ
の揺動軸29の左右両側と前記左右両側のスイングアーム
21,21とに連結したリンク機構30とにより成り、ばね収
容枠体28に設けて揺動軸29を後向きに押圧するばね（図
示せず）力が、前記鎮圧輪７による支持反力にバランス
して前後輪4,5を下向き付勢するように構成する。Reference numeral 26 is a vertical interlocking mechanism capable of adjusting the height of the front and rear four wheels 4 and 5 with respect to the traveling body 2 all at once, and a connecting rod pivotally attached to the left and right front and rear swing arms 21, 25 respectively. 27, a connecting rod 27 pivotally attached to the right and left front and rear swing arms 21, 25, respectively, and a spring housing frame 28 mounted on the traveling machine body 2 so that its position can be adjusted in the front-rear direction. A swing shaft 29 rotatably provided, and swing arms on both the left and right sides of the swing shaft 29 and the left and right sides.
21, 21 and a link mechanism 30 connected to each other, and a spring (not shown) force provided on the spring housing frame 28 to press the swing shaft 29 rearward is balanced with the support reaction force by the compression wheel 7. Then, the front and rear wheels 4 and 5 are configured to be biased downward.

なお、揺動軸29が前後方向移動するときには前後のス
イングアームが一斉に上下揺動し、走行機体１が前後に
略水平状態で昇降するのであり、揺動軸29がその軸線回
りに回動するときには、右（左）のスイングアームが下
降すると、左（右）のスイングアームが上昇して、走行
機体１が左右にローリングするものである。When the swing shaft 29 moves in the front-back direction, the front and rear swing arms swing up and down all at once, and the traveling machine body 1 moves up and down in a substantially horizontal state. The swing shaft 29 rotates about its axis. In this case, when the right (left) swing arm descends, the left (right) swing arm rises, and the traveling machine body 1 rolls left and right.

そして、走行機体２の後部から回動する回動ハンドル
31とねじ軸等からなる調節手段で、ばね収容枠体28の前
後位置を調節し、且つその位置を保持するように構成す
る。Then, a rotation handle that rotates from the rear portion of the traveling body 2
The front and rear positions of the spring accommodating frame body 28 are adjusted by an adjusting means including 31 and a screw shaft, and the position is maintained.

また図示しないが、ローリングロック装置により、前
記揺動軸29の軸線回りの回動を通常は禁止し、所望によ
りその回動を無段階的に許すように構成している。Although not shown, the rolling lock device is normally configured to prohibit the rotation of the swing shaft 29 about its axis and allow the rotation steplessly if desired.

平面視矩形状の苗収容箱Ａには上面開口のポット部ａ
を縦横に一定間隔で形成し、各ポット部ａには土付きの
野菜のプラグ苗Ｐを挿入してある。The seed box accommodating box A having a rectangular shape in plan view has a pot portion a with an upper surface opening.
Are formed vertically and horizontally at regular intervals, and plug pots P of soiled vegetables are inserted in each pot portion a.

前記苗収容箱Ａの搬送機構14は、第１図及び第３図に
示すように、走行機体２から立設した左右一対の縦フレ
ーム33,33間にて前後一対のプーリ35,36に巻掛けた平ベ
ルト34の上面に苗収容箱Ａを載置して走行機体の後方に
搬送するものであり、後位置の駆動プーリ35は電動モー
タ37および変速機構38を介して駆動される。As shown in FIGS. 1 and 3, the transport mechanism 14 for the seedling storage box A is wound around a pair of front and rear pulleys 35, 36 between a pair of left and right vertical frames 33, 33 standing upright from the traveling machine body 2. The seedling storage box A is placed on the upper surface of the hung flat belt 34 and conveyed to the rear of the traveling machine body, and the drive pulley 35 at the rear position is driven via the electric motor 37 and the speed change mechanism 38.

また、前記駆動プーリ35の左右両側に取付いてこれと
一体的に回転する左右一対のＶプーリ39,39にて前記苗
収容箱Ａの左右両端部のポット部a,aの左右両側を挟持
案内し、前記駆動プーリ35の上面箇所で前記苗取出し機
構15にてプラグ苗Ｐを抜き出し、空のポット部ａが駆動
プーリ35の下面側に回り込むように強制案内されるもの
である。A pair of left and right V pulleys 39, 39 attached to the left and right sides of the drive pulley 35 and rotating integrally with the drive pulley 35 hold and guide the left and right sides of the pot parts a, a at both left and right ends of the seedling storage box A. Then, the plug seedling P is pulled out by the seedling take-out mechanism 15 at the upper surface of the drive pulley 35, and the empty pot part a is forcibly guided so as to go around the lower surface of the drive pulley 35.

走行機体２の後部下面に設けた移植機構16の詳細は、
第４図から第６図までに示す。For details of the transplantation mechanism 16 provided on the rear lower surface of the traveling body 2,
Shown in FIGS. 4 to 6.

符号40は走行機体前部のミッションケース22から屈曲
自在な可軸又は自在継手付き伝動軸41を介して動力伝達
する伝動ケースで、該伝動ケース40内には、マルチカッ
ター10及び移植機構16に動力伝達する第１伝動部42を設
ける。Reference numeral 40 is a transmission case for transmitting power from the transmission case 22 at the front of the traveling machine body through a bendable shaft or a transmission shaft 41 with a universal joint, and in the transmission case 40, the multi-cutter 10 and the transplantation mechanism 16 are provided. A first transmission section 42 for transmitting power is provided.

該第１伝動部42では、前記伝動軸41に連結したウオー
ム43に噛合うウオームギア44が主軸45に遊嵌し、該ウオ
ームギア44の一側ボス部44a外周に主軸45の回転方向に
締まり勝手に巻付いたねじりばね46の一端46bを主軸45
側に固定し、該ねじりばね46の他端46aを主軸45の外周
半径外方向に放置させて、ねじりばね46の巻締め力とで
ウオームギア44と主軸45とを一体的に回転できるように
クラッチ47を構成する一方、このクラッチ47であるねじ
りばね46の巻締め力を開放するアクチェータを設ける。In the first transmission portion 42, a worm gear 44 that meshes with a worm 43 connected to the transmission shaft 41 is loosely fitted to the main shaft 45, and the worm gear 44 is tightened around the outer periphery of the one side boss portion 44a in the rotation direction of the main shaft 45. One end 46b of the twisted torsion spring 46 is attached to the spindle 45.
Side of the main shaft 45, and the other end 46a of the torsion spring 46 is left outside in the radial direction of the outer circumference of the main shaft 45, and the worm gear 44 and the main shaft 45 can be integrally rotated by the tightening force of the torsion spring 46. An actuator for releasing the winding tightening force of the torsion spring 46, which is the clutch 47, is provided while constituting the 47.

即ち、伝動ケース40の外には、前記クラッチ47に対す
るアクチェータである電磁ソレノイド48を設け、そのリ
ンク49の先端に連結して上下動するように構成したクラ
ッチピン50の先端を、前記ねじりばね46の他端46a側面
に臨ませ、該クラッチピン50がねじりばね46の他端46a
側面に接当するときには、当該ねじりばね46のウオーム
ギアボス部44aに対する巻締め力が開放されるようにす
るものである。That is, an electromagnetic solenoid 48, which is an actuator for the clutch 47, is provided outside the transmission case 40, and the tip of a clutch pin 50 configured to move up and down by being connected to the tip of a link 49 of the clutch 47 is connected to the torsion spring 46. The other end 46a of the torsion spring 46 so that the clutch pin 50 faces the side surface of the other end 46a.
When abutting on the side surface, the tightening force of the torsion spring 46 on the worm gear boss portion 44a is released.

前記主軸45に取付く傘歯車51に噛合う傘歯車52を介し
て湾曲自在な可撓軸又は自在継手付き伝動軸53に動力伝
達し、後述する苗取出し機構15に対する第２伝動部96に
動力伝達する。Power is transmitted to a bendable flexible shaft or a transmission shaft with a universal joint 53 via a bevel gear 52 that meshes with a bevel gear 51 attached to the main shaft 45, and a power is transmitted to a second transmission portion 96 for a seedling take-out mechanism 15 described later. introduce.

前記主軸45から爪軸54には一対のチェーンスプロケッ
ト55,56及びチェーン57を介して動力伝達し、主軸45及
び爪軸54の一端に各々取付くクランクアーム58,59に移
植杆60を枢着して上下揺動させ、該移植杆60に上端を枢
支した一対の揺動アーム61,61に取付くコロ62,62を、前
記一方のクランクアーム59に取付くピン63の端面カム64
の左右両側端面に挟むように接当させ、この端面カム64
の左右両側端面間の広狭とクランクアーム58,59の回転
との同期連動に応じて、前記一対の揺動アーム61,61の
下端コロ62,62に各々取付く一対の下窄まり半円錐筒状
の押し込み体18,18の下端が、当該押し込み体18の上昇
位置で閉じ、下降位置で開くように回動させるものであ
る。Power is transmitted from the main shaft 45 to the pawl shaft 54 via a pair of chain sprockets 55, 56 and a chain 57, and a graft rod 60 is pivotally attached to crank arms 58, 59 attached to one ends of the main shaft 45 and the pawl shaft 54, respectively. And swinging up and down to attach the rollers 62, 62 to the pair of swinging arms 61, 61 whose upper ends are pivotally supported by the transplanting rod 60, and the end face cam 64 of the pin 63 for attaching to the one crank arm 59.
Abutting on both left and right end faces of the
A pair of lower constricted semi-conical cylinders attached to the lower end rollers 62, 62 of the pair of swing arms 61, 61 in synchronization with the width between the left and right end faces of the crank arm and the rotation of the crank arms 58, 59. The lower ends of the push-in bodies 18, 18 are rotated so that the push-in bodies 18 are closed at the raised position and opened at the lowered position.

なお、符号65は左右一対の押し込み体18,18が下降し
てその内部のプラグ苗Ｐを畝８上面に移植するとき、下
降する強制体で、該強制体５の下端で当該プラグ苗Ｐの
土上面を下向きに押圧して土内に押し込むものである
（第４図参照）。Reference numeral 65 is a compulsory body that descends when the pair of left and right pushing bodies 18, 18 descend and transplant the plug seedling P inside it into the upper surface of the ridge 8. It pushes the top surface of the soil downward and pushes it into the soil (see Fig. 4).

符号66は、前記爪軸54から歯車対及びウオーム等を介
して回転動力をマルチカッター10に伝動する分岐部で、
その可撓軸67の先端をマルチカッター10における回転軸
68に連結してあり、回転軸68を支持するブラケット69を
前記移植杆60から前向きに突出した一対の支軸70,70に
前後位置調節自在に固定し、回転軸68の下端にマルチフ
イルム９を平面視円形に切り抜くカッター刃71と、切り
抜いた円形状のフイルムを突き刺し保持する刺し棒72と
を設けてある。符号73は前記切り抜き作業時に孔より外
周のマルチフイルム９を押圧してしわにならないように
する略円筒状の押圧体である（第４図参照）。Reference numeral 66 is a branch portion for transmitting rotational power from the pawl shaft 54 to the multi-cutter 10 via a gear pair and a worm,
The tip of the flexible shaft 67 is the rotary shaft of the multi-cutter 10.
A bracket 69, which is connected to the rotary shaft 68 and supports the rotary shaft 68, is fixed to the pair of support shafts 70, 70 projecting forward from the transplant rod 60 so that the front and rear positions can be adjusted, and the multi-film 9 is attached to the lower end of the rotary shaft 68. A cutter blade 71 for cutting out a circular shape in plan view and a piercing bar 72 for piercing and holding the cut out circular film are provided. Reference numeral 73 is a substantially cylindrical pressing body that presses the multi-film 9 on the outer periphery from the hole to prevent wrinkles during the cutting operation (see FIG. 4).

符号74は前記伝動ケース40から後向きに突出する筒部
材75の後端に取付く案内搬送機構17用伝動ケースで、前
記伝動ケース40内のウオーム43の軸から該伝動ケース74
内の一対の歯車76,76を介して一対の駆動プーリ77,77を
その対面する側が下向きに回動するように駆動し、これ
ら一対の駆動プーリ77,77と上方位置の従動プーリ78,,7
8との間に巻掛けた左右一対のベルト79、79（下方に行
くに従って間隔が狭くなる背面視逆ハの字状配設）にて
プラグ苗Ｐを前記上昇した位置の一対の押し込み体18,1
8内に導くように構成する。Reference numeral 74 denotes a transmission case for the guide and transport mechanism 17 which is attached to the rear end of the tubular member 75 which projects rearward from the transmission case 40, and which extends from the shaft of the worm 43 in the transmission case 40 to the transmission case 74.
The pair of drive pulleys 77, 77 are driven via the pair of gears 76, 76 so that the facing sides thereof rotate downward, and the pair of drive pulleys 77, 77 and the driven pulleys 78, 77 in the upper position are driven. 7
The pair of left and right belts 79, 79 wound between the belt 8 and the belt 8 (arranged in a reverse C-shape when viewed from the rear so that the distance becomes narrower downward) and the pair of pushers 18 at the raised position , 1
Configure to lead within 8.

前記搬送機構14における苗収容箱Ａのポット部ａから
プラグ苗Ｐを抜き取る苗取出し機構15は、左右一対の縦
フレーム33,33上部間に装着した横長のガイド軸80と、
これに平行状に配設した断面矩形状の揺動軸81と、ガイ
ド軸80に被嵌し、その周面に刻設した往復案内溝82にピ
ン83係合して移動する横移動体84と、該横移動体84の一
端を左右両側から挟み、且つ前記揺動軸81に遊嵌する本
体85と、該本体85から後向きに突出し軸線回りに回動自
在な左右一対の揺動杆86,86とから成り、本体85と揺動
軸81とはワンウエイクラッチ87を介して取付く。The seedling take-out mechanism 15 for taking out the plug seedlings P from the pot portion a of the seedling storage box A in the transport mechanism 14 includes a horizontally long guide shaft 80 mounted between the pair of left and right vertical frames 33, 33, and
A swinging shaft 81 having a rectangular cross section arranged in parallel with this, and a laterally moving body 84 which is fitted on a guide shaft 80 and engages a pin 83 with a reciprocating guide groove 82 formed on the peripheral surface of the guide shaft 80 to move. A main body 85 that sandwiches one end of the lateral moving body 84 from both the left and right sides and is loosely fitted to the swing shaft 81; and a pair of left and right swing rods 86 that project rearward from the main body 85 and are rotatable around the axis. , 86, and the main body 85 and the swing shaft 81 are attached via a one-way clutch 87.

このワンウエイクラッチ87には端面カム88を被嵌係合
させ、他方、前記左右一対の揺動杆86,86の基部に各々
固着した作動片89,89に取付くローラ90,90の先端を、前
記端面カム88の左右両側端面に押圧接当させるようにば
ね91付勢し、後述するように揺動軸81が所定の時間間隔
ごとに揺動し、本体85ひいては左右両揺動杆86,86の先
端に下向きに取付く側面視円弧状等の爪体92,92が、第
７図で示すポット部ａ内のプラグ苗Ｐに向かって下降す
るときには、前記ワンウエイクラッチ87を介して端面カ
ム88が非回転となって、当該端面カム88の厚さの大きい
左右両側平端面部を前記両ローラ90,90が転がり、作動
片89,89を介して左右両揺動杆86,86を軸線回りに回動さ
せて爪体92,92の下端が左右に広がる（開く）状態を保
持する（第７図実線参照）。The one-way clutch 87 is fitted and engaged with an end surface cam 88, and on the other hand, the tips of the rollers 90, 90 attached to the operating pieces 89, 89 fixed to the bases of the pair of left and right swing rods 86, 86, A spring 91 is urged so as to press and contact both left and right end surfaces of the end surface cam 88, and a swing shaft 81 swings at predetermined time intervals, as will be described later, and a main body 85 and by extension both left and right swing rods 86, When the claw bodies 92, 92 which are attached downward to the tip of 86 and which are arcuate in side view are lowered toward the plug seedling P in the pot part a shown in FIG. 7, the end face cam is inserted via the one-way clutch 87. 88 becomes non-rotating, the both rollers 90, 90 roll on the thick left and right flat end surfaces of the end face cam 88, and the left and right swing rods 86, 86 rotate around the axis line via the operating pieces 89, 89. The lower ends of the pawls 92, 92 are held in a state where the lower ends of the pawls 92, 92 spread (open) to the left and right (see the solid line in FIG. 7).

また、爪体92,92がプラグ苗Ｐの土部に刺さるとき
（第７図の一点鎖線状態参照）、端面カム88の左右両側
凹所93,93にローラ90,90が嵌り込み、作動片89,89及び
左右両揺動杆86,86を介して左右両爪体92,92の下端間隔
が窄んでプラグ苗Ｐを挟持し、次いで本体85が上向きに
回動し、揺動杆86が上昇行程に入るときには、前記ワン
ウエイクラッチ87の作用により、端面カム88が回動可能
となり、ローラ90,90は凹所93,93に嵌合した状態のまま
端面カム88を連れ回す。Further, when the nail bodies 92, 92 pierce the soil of the plug seedling P (see the state of alternate long and short dash lines in FIG. 7), the rollers 90, 90 fit into the left and right recesses 93, 93 of the end cam 88, and the operating piece Through the 89, 89 and the left and right swing rods 86, 86, the lower end spacings of the left and right claw bodies 92, 92 are narrowed to hold the plug seedling P, and then the main body 85 is rotated upward to move the swing rod 86. When entering the ascending stroke, the end surface cam 88 becomes rotatable due to the action of the one-way clutch 87, and the rollers 90, 90 rotate together with the end surface cam 88 while being fitted in the recesses 93, 93.

符号114,114は前記左右一対の爪体92,92の外周に遊嵌
したコイルばねや可撓性を有する軟質合成樹脂性のパイ
プにコイルばねを巻付け埋設したもの等から成る押出し
管体で、この両押出し管体114,114の基端を前記両爪体9
2,92に摺動自在に被嵌した取付け金具115のナット部116
等に固定してある。Reference numerals 114 and 114 are extruded pipes made of a coil spring loosely fitted to the outer circumference of the pair of left and right claws 92, 92, a flexible synthetic resin pipe having flexibility and a coil spring wound and embedded therein. The base ends of the two extruding pipes 114, 114 are connected to the both claws 9
Nut part 116 of mounting bracket 115 slidably fitted on 2,92
It is fixed to etc.

符号117は、前記左右揺動杆86,86の軸線と平行状に配
設し、本体85に摺動自在に設け、且つ爪体92の先端方向
にばね118付勢した作動杆で、前記取付け金具115に先端
に固定した作動杆117の後端に取付くコロ119を、横移動
体84から突出させた左右一対のカム板120,120の上面に
接当させて成る。Reference numeral 117 is an operating rod which is arranged in parallel with the axis of the left and right swing rods 86, 86, is slidably provided on the main body 85, and is biased by the spring 118 toward the tip of the pawl 92. A roller 119 attached to the rear end of the actuating rod 117 fixed to the metal fitting 115 at the tip is brought into contact with the upper surfaces of the pair of left and right cam plates 120, 120 protruding from the lateral moving body 84.

これにより、両爪体92が下向きに下降する行程では、
下向き方向に回動する本体95の上面が前記カム板120の
上面から離れるのに応じてコロ119を介して作動杆117を
後退させ、ひいては前記一対の押出し管体114,114を爪
体92の基端に近付くように後退させ、反対に両爪体92が
上昇する行程では、上向き回動する本体95がカム板120
に近付くので、該カム板120上面に沿ってコロ119が移動
するとき、ばね118力で作動杆117は爪体92の先端方向に
突出動（前進）するのである。As a result, in the process in which both the claw bodies 92 descend downward,
In response to the upper surface of the main body 95 which rotates in the downward direction moving away from the upper surface of the cam plate 120, the operating rod 117 is retracted via the roller 119, and the pair of extruding pipe bodies 114 and 114 are connected to the base end of the pawl body 92. On the other hand, in the process of retracting so that both the claw bodies 92 rise, the main body 95 rotating upward moves the cam plate 120.
Therefore, when the roller 119 moves along the upper surface of the cam plate 120, the actuating rod 117 is moved (advanced) toward the tip of the pawl 92 by the force of the spring 118.

また、前記一対の作動片89,89のうちの一方の作動片8
9から突設した係合片121は、一対の作動片89、89に取付
く一対のローラ90が端面カム88の凹所93に嵌っている状
態において、後退時の作動杆117の外周面に凹み形成し
た係合溝122に係合し、作動杆117の前向き移動を阻止
し、反対に、前記一対のローラ93が端面カム88の厚みの
大きい箇所に位置するときには、作動片89の揺動に応じ
て係合片121が係合溝122から外れて、作動117がばね118
力にて爪体92の先端方向に突出動し、取付け金具115に
より一対の押出し管体114,114が爪体92の先端（下端）
に近付くように押しだされるのである。Further, one operating piece 8 of the pair of operating pieces 89, 89.
The engaging piece 121 projecting from 9 is provided on the outer peripheral surface of the operating rod 117 at the time of retreat in a state where the pair of operating pieces 89 and the pair of rollers 90 attached to the 89 are fitted in the recesses 93 of the end surface cam 88. When the pair of rollers 93 are engaged with the recessed engagement groove 122 to prevent the operating rod 117 from moving forward, and on the contrary, when the pair of rollers 93 are located at a position where the end cam 88 has a large thickness, the operating piece 89 swings. Accordingly, the engaging piece 121 is disengaged from the engaging groove 122, and the operation 117 is performed by the spring 118.
The force causes the claw body 92 to project toward the tip end of the claw body 92, and the mounting metal fitting 115 causes the pair of push-out tube bodies 114, 114 to move to the tip (lower end) of the claw body 92.
It is pushed so that it approaches.

この構成によれば、プラグ苗Ｐを摘んだ両爪体92が上
昇する行程の上限近傍において、当該爪体92,92の先端
が開くことにより、プラグ苗Ｐに対する挟持を開放し、
このとき略同時に、各爪体92の外周に遊嵌している押出
し管体114が爪体92の先端（下端）に向かって前進する
から、当該両爪体92に付着したプラグ苗Ｐにおける土部
分を、押出し管体の先端で下向きに押してプラグ苗Ｐの
放出を容易にすることができるのである。According to this configuration, in the vicinity of the upper limit of the stroke in which both nail bodies 92 picking the plug seedlings P are raised, the tips of the nail bodies 92, 92 are opened to release the nipping for the plug seedlings P,
At this time, substantially at the same time, since the push-out tube body 114 loosely fitted to the outer circumference of each claw body 92 advances toward the tip (lower end) of the claw body 92, the soil in the plug seedlings P attached to both claw bodies 92 is advanced. The part can be pushed downward with the tip of the extruded tube to facilitate the release of the plug seedling P.

なお、前記実施例では爪体92の形状を側面視略円弧状
に形成していたから、この湾曲に沿って押出し管体114
が移動可能となるように、当該押出し管体をコイルばね
等の可撓性を有する部材にて形成したが、爪体が直線状
であるときには、必ずしも可撓性材料とする必要はな
い。さらに、押出し管体114は、一対の爪体92,92のうち
一方にのみ設けても良い。In addition, in the above-described embodiment, since the shape of the pawl body 92 is formed in a substantially arcuate shape when viewed from the side, the extruded tubular body 114 follows this curve.
The extruded tube body is formed of a flexible member such as a coil spring so that the movable body can be moved. However, when the claw body is linear, it is not always necessary to use a flexible material. Further, the push-out tube body 114 may be provided only on one of the pair of claw bodies 92, 92.

符号95は、前記揺動軸81及びガイド軸80を駆動する第
２伝動部96を内臓する伝動ケースで、前記第１伝動部42
からの伝動軸53から一対の傘歯車97,98を介して回転軸9
9を一定方向に回転駆動し、この回転軸99に取付く歯車1
01を前記揺動軸81と同心状に配設した中間軸100に遊嵌
する従動歯車102に噛み合せ、該従動歯車102のボス部外
周と、従動歯車102に隣接して中間軸100と一体的に回転
する筒体103外周とに跨って巻付いたねじりばね104の一
端を筒体103に固定する一方、ねじりばね104の他端104a
を伝動ケース95内に放置し、従動軸102の回転時には当
該従動軸102のボス部等の外周に巻締り勝手となって中
間軸100を回転駆動するようにクラッチを構成し、この
ねじりばね104の他端104a側面に、伝動ケース95の外か
ら挿入したクラッチピン105の先端部側面が接当係合す
ると、ねじりばね104の巻締め力が緩み、中間軸100の回
転を停止させる。このクラッチピン105の進退動はアク
チェータである電磁ソレノイド106への電気信号の入力
で実行するものである。前記中間軸100から歯車対107,1
08を介してガイド軸80を一定方向に回転させる。Reference numeral 95 denotes a transmission case having a second transmission portion 96 for driving the swing shaft 81 and the guide shaft 80, and the first transmission portion 42.
From the transmission shaft 53 via a pair of bevel gears 97, 98 to the rotating shaft 9
Gear 1 that rotates 9 in a fixed direction and attaches it to this rotating shaft 99.
01 is meshed with a driven gear 102 that is loosely fitted to an intermediate shaft 100 arranged concentrically with the swing shaft 81, and is integrated with the intermediate shaft 100 adjacent to the boss outer periphery of the driven gear 102 and the driven gear 102. One end of the torsion spring 104 wound around the outer circumference of the rotating cylindrical body 103 is fixed to the cylindrical body 103, while the other end 104a of the torsion spring 104 is fixed.
Is left in the transmission case 95, and when the driven shaft 102 rotates, a clutch is formed around the outer periphery of the boss portion of the driven shaft 102 to rotate and drive the intermediate shaft 100, and the torsion spring 104 When the tip end side surface of the clutch pin 105 inserted from the outside of the transmission case 95 is abuttingly engaged with the side surface of the other end 104a of the transmission case 95, the winding tightening force of the torsion spring 104 is loosened, and the rotation of the intermediate shaft 100 is stopped. The forward / backward movement of the clutch pin 105 is executed by inputting an electric signal to an electromagnetic solenoid 106 which is an actuator. Gear pairs 107,1 from the intermediate shaft 100
The guide shaft 80 is rotated in a fixed direction via 08.

また、前記回転軸99の伝動ケース95外側における端部
に回転アーム109を取付け、該回転アーム109の先端にピ
ン110枢着した長さ調節可能な調節リンク111の他端を前
記揺動軸81に被嵌係合するリンク112に回動自在に連結
し、回転アーム109が１回転するとリンク112が適宜角度
だけ１往復するように揺動し、揺動軸81を揺動駆動する
ものである。Further, a rotary arm 109 is attached to an end of the rotary shaft 99 outside the transmission case 95, and the other end of a length-adjustable adjustment link 111 pivotally attached to a tip of the rotary arm 109 is connected to the swing shaft 81. It is rotatably connected to a link 112 that is engaged with and is engaged with, and when the rotating arm 109 makes one rotation, the link 112 swings so as to reciprocate once by an appropriate angle, and swingably drives the swing shaft 81. .

なお、鎮圧輪７に関連させた苗植え間隔の検出装置
は、畝８上面を転がる鎮圧輪７の回転数から、所定の時
間間隔ごとに検出信号を取出すように構成したもので、
この検出信号を、コントローラに送り、このコントロー
ラの制御により、前記第１伝動部42の電磁ソレノイド48
及び第２伝動部96に電磁ソレノイド106を所定のタイミ
ングでON・OFFするのである。The seedling planting interval detection device associated with the presser wheel 7 is configured to extract a detection signal at predetermined time intervals from the number of revolutions of the presser wheel 7 rolling on the upper surface of the ridge 8.
This detection signal is sent to the controller, and the electromagnetic solenoid 48 of the first transmission section 42 is controlled by the controller.
Also, the electromagnetic solenoid 106 is turned on / off at a predetermined timing in the second transmission section 96.

即ち、検出信号（走行機体１が苗植え間隔だけ走行す
るとバルス信号を出す）で作動開始し、第１伝動部の電
磁ソレノイド48を所定期間（マルチカッター10及び移植
機構16が１回上下揺動する期間（To））だけON状態に保
持し、且つ第２伝動部の電磁ソレノイド106を前記期間
（To）のうちの適宜期間（実施例では前記Toの1/3周
期）まずONとしてガイド軸80を駆動し、次の適宜期間
（実施例では1/3周期）はOFFを保持して前記ガイド軸80
を停止させ、さらに次の適宜期間（実施例では1/3周
期）はONに保持する。That is, the operation is started by a detection signal (a pulse signal is output when the traveling machine body 1 travels for the seedling planting interval), and the electromagnetic solenoid 48 of the first transmission section is vertically rocked once for a predetermined period (the multi-cutter 10 and the transplantation mechanism 16 are moved up and down). For a certain period (To)), and the electromagnetic solenoid 106 of the second transmission unit is turned on for an appropriate period (1/3 cycle of the To in the embodiment) of the period (To) first. 80 is driven and kept OFF for the next appropriate period (in the embodiment, 1/3 cycle), the guide shaft 80
Is stopped and is kept ON for the next appropriate period (in the embodiment, 1/3 cycle).

この第２伝動部96の動力伝動の間欠的作動により、左
右に適宜間隔で並んだポット部に対してその所定位置に
苗取出し機構15の爪体92,92が来るまで、横移動体84は
移動するが、前記ポット部ａに左右一対の爪体92,92が
刺さった後プラグ苗Ｐを抜き出すように揺動杆86,86が
下降→上昇の行程中は、横移動体84の横移動を停止させ
ておき、プラグ苗Ｐを抜き出した後は横移動体84の横移
動を許すことにより、ポット部ａと爪体92との干渉を防
止し、プラグ苗Ｐの潰れ事故等を無くするようにしたの
である。By the intermittent operation of the power transmission of the second transmission portion 96, the lateral moving body 84 is moved until the claws 92, 92 of the seedling take-out mechanism 15 come to the predetermined positions with respect to the pot portions arranged at the right and left at appropriate intervals. It moves, but after the pair of left and right claws 92, 92 are stabbed in the pot part a, the swing rods 86, 86 are moved downward so that the plug seedling P is pulled out. After the plug seedling P has been pulled out, the lateral movement of the lateral moving body 84 is allowed to prevent the pot portion a from interfering with the claw body 92, and the crush accident of the plug seedling P is eliminated. I did so.

この横移動停止期間中も回転軸99の回転は電磁ソレノ
イド106と無関係だから、揺動軸81は回転アーム109や調
節リンク111,リンク112を介して揺動する。Since the rotation of the rotary shaft 99 is unrelated to the electromagnetic solenoid 106 even during this lateral movement stop period, the swing shaft 81 swings via the rotary arm 109, the adjustment link 111, and the link 112.

そして、１つの苗植え間隔ごとに前記マルチカッター
10によるマルチフイルム９への孔11開け作業と押し込み
体18による畝８上面へのプラグ苗Ｐの移植を一回終了す
れば、苗植え間隔検出装置による次の検出信号が出るま
で、両電磁ソレノイド48,106は非作動状態を保持し、マ
ルチカッター10及び移植機構16の押し込み体18は上昇位
置で停止するし、苗取出し機構16も停止する。その間案
内搬送機構17のベルトは駆動している。And the multi-cutter at every one planting interval
When the work of opening the hole 11 in the multi-film 9 by 10 and the implantation of the plug seedling P by the pusher 18 on the upper surface of the ridge 8 is completed once, the electromagnetic solenoids are operated until the next detection signal is output by the seedling planting interval detection device. 48 and 106 keep the non-operating state, the multi-cutter 10 and the pusher 18 of the transplantation mechanism 16 stop in the raised position, and the seedling take-out mechanism 16 also stops. During that time, the belt of the guide and transport mechanism 17 is driven.

【図面の簡単な説明】[Brief description of drawings]

第１図は移植機の側面図、第２図は平面図、第３図は後
面図、第４図はマルチカッター及び移植機構の要部側面
図、第５図は第４図のＶ−Ｖ視断面図、第６図は第５図
のVI−VI視断面図、第７図は苗取出し機構の側断面図、
第８図は第７図のVIII−VIII視平面図、第９図は第７図
のIX−IX視断面図、第10図は第７図のＸ−Ｘ視断面図、
第11図は第７図のXI−XI視断面図、第12図は第11図のXI
I−XII視図である。 １……移植機、２……走行機体、３……エンジン、４…
…前輪、５……後輪、６……ハンドル、７……鎮圧輪、
８……畝、8b……畝間、９……マルチフイルム、10……
マルチカッター、12……移植装置、13……覆土輪、14…
…搬送機構、15……苗取出し機構、16……移植機構、17
……案内搬送機構、18……押し込み体、20……駆動車
軸、21,25……スイングアーム、26……上下連動機構、2
7……連杆、28……ばね収容枠体、30……リンク機構、3
1……回動ハンドル、34……平ベルト、35……駆動プー
リ、37……電動モータ、40,74,95……伝動ケース、42…
…第１伝動部、45……主軸、41,53……伝動軸、46,104
……ねじりばね、48,106……電磁ソレノイド、60……移
植杆、61……揺動アーム、77……駆動プーリ、79……ベ
ルト、80……ガイド軸、81……揺動軸、84……横移動
体、85……本体、86……揺動杆、88……端面カム、87…
…ワンウエイクラッチ、92……爪体、114……押出し管
体、115……取付け金具、117……作動杆、118……ば
ね、119……コロ、120……カム板、121……係合片、122
……係合溝。FIG. 1 is a side view of the transplanter, FIG. 2 is a plan view, FIG. 3 is a rear view, FIG. 4 is a side view of the main parts of the multi-cutter and the transplantation mechanism, and FIG. 5 is VV of FIG. Sectional view, FIG. 6 is a sectional view taken along line VI-VI of FIG. 5, FIG. 7 is a side sectional view of the seedling removing mechanism,
8 is a plan view taken along line VIII-VIII of FIG. 7, FIG. 9 is a cross-sectional view taken along line IX-IX of FIG. 7, and FIG. 10 is a cross-sectional view taken along line XX of FIG.
11 is a sectional view taken along line XI-XI in FIG. 7, and FIG. 12 is XI in FIG.
It is an I-XII view. 1 ... transplanting machine, 2 ... running machine, 3 ... engine, 4 ...
... front wheel, 5 ... rear wheel, 6 ... steering wheel, 7 ... compression wheel,
8 ... ridge, 8b ... ridge, 9 ... multi-film, 10 ...
Multi-cutter, 12 …… Transplanting device, 13 …… Covering wheel, 14…
… Conveyance mechanism, 15 …… Sprouting mechanism, 16 …… Transplanting mechanism, 17
…… Guide transport mechanism, 18 …… Pushing body, 20 …… Drive axle, 21,25 …… Swing arm, 26 …… Upper and lower interlocking mechanism, 2
7 …… Link rod, 28 …… Spring housing frame, 30 …… Link mechanism, 3
1 …… Rotary handle, 34 …… Flat belt, 35 …… Drive pulley, 37 …… Electric motor, 40,74,95 …… Transmission case, 42…
… 1st transmission part, 45 …… Main shaft, 41, 53 …… Transmission shaft, 46, 104
...... Torsion spring, 48,106 …… Electromagnetic solenoid, 60 …… Transport rod, 61 …… Swing arm, 77 …… Drive pulley, 79 …… Belt, 80 …… Guide shaft, 81 …… Swing shaft, 84… … Lateral moving body, 85 …… Main body, 86 …… Swing rod, 88 …… End cam, 87…
… One way clutch, 92 …… Claw body, 114 …… Extruded tube body, 115 …… Mounting bracket, 117 …… Operating rod, 118 …… Spring, 119 …… Roller, 120 …… Cam plate, 121 …… Engagement Piece, 122
...... Engagement groove.

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of utility model registration request] 【請求項１】走行機体に設けた苗取出し部におけるプラ
グ苗箇所に対して一対の爪体が上下に遠近揺動し、且つ
下降行程で一対の爪体の先端部で前記プラグ苗を摘み取
出し、上昇行程終端近傍で一対の爪体の先端部の間隔が
開いてプラグ苗を放出するように構成して成る苗取出し
機構において、前記一対の爪体のうち少なくとも一方
に、その長手方向に沿って移動自在な押出し管体を遊嵌
し、該押出し管体を、両爪体が下降するとき当該爪体の
基端方向に後退させ、両爪体の先端部間隔が開くとき
に、該押出し管体を、その先端が爪体の先端部方向に近
付くように前進するように構成したことを特徴とする苗
取出し機構。1. A pair of claws vertically oscillates up and down with respect to a plug seedling portion in a seedling take-out portion provided on a traveling machine body, and the plug seedlings are picked and picked out at the tip end of the pair of claws in a descending process. In the seedling take-out mechanism configured to release the plug seedlings with a gap between the tip portions of the pair of nail bodies near the end of the ascending stroke, in at least one of the pair of nail bodies, along the longitudinal direction thereof. The movable extruding tube is loosely fitted, and the extruding tube is retracted toward the proximal end direction of the claws when the claws descend, and when the distance between the tip ends of the claws is widened, A seedling take-out mechanism, characterized in that the tube body is configured to advance so that its tip approaches the tip of the nail body.