JP2008220187A - Seedling transplanter - Google Patents

Seedling transplanter Download PDF

Info

Publication number
JP2008220187A
JP2008220187A JP2007058614A JP2007058614A JP2008220187A JP 2008220187 A JP2008220187 A JP 2008220187A JP 2007058614 A JP2007058614 A JP 2007058614A JP 2007058614 A JP2007058614 A JP 2007058614A JP 2008220187 A JP2008220187 A JP 2008220187A
Authority
JP
Japan
Prior art keywords
seedling
flexible linear
rotation
guide shaft
rotating
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
Application number
JP2007058614A
Other languages
Japanese (ja)
Other versions
JP4636624B2 (en
Inventor
Norihiko Muneyoshi
紀彦 宗好
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanmar Co Ltd
Original Assignee
Yanmar Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Yanmar Co Ltd filed Critical Yanmar Co Ltd
Priority to JP2007058614A priority Critical patent/JP4636624B2/en
Publication of JP2008220187A publication Critical patent/JP2008220187A/en
Application granted granted Critical
Publication of JP4636624B2 publication Critical patent/JP4636624B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Transplanting Machines (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a seedling transplanter 1 in which a traveling machine body 4 is provided with a seedling-conveying mechanism 13 for conveying seedlings A, placed at prescribed intervals on the top surface of an endless conveyer 22, in such a manner that the seedlings A get close to a field one by one by the intermittent feeding of the endless conveyer, and a seedling-planting mechanism 14 for planting the seedlings conveyed by the seedling-conveying mechanism in such a manner as to get close to the field, so as to plant the seedlings in the field by the descending motion of a planting member 27, and the size and weight of which are reduced by simplifying the constitution of the intermittent feeding of the endless conveyer. <P>SOLUTION: A one-way clutch 29 for transmitting only the rotation of a rotator 28 in one direction to a guide shaft is provided between a guide shaft 20 on which the endless conveyer 22 is wound, and the rotator 28 rotatably fitted to the guide shaft 20; a flexible linear object 35, whose one end is connected to an elastic means, is wound around the rotator; and the other end of the flexible linear object 35 is connected to a crank pin 42, which is eccentrically provided on a driving shaft 19 rotated by a power source, in such a manner that a pulled state is released after being pulled against an elastic means, during the one rotation of the driving shaft. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は，甘しょのつる苗等のような苗を圃場に植付けるようにした苗移植機に関するものである。   The present invention relates to a seedling transplanting machine in which seedlings such as sweet vine seedlings are planted in a field.

従来，この種の苗移植機は，例えば，先行技術としての特許文献１，２に記載されているように，走行機体に，無端搬送体の上面に所定間隔で載せた苗を当該無端搬送体における間欠送りによって一本ずつ圃場に近づくように搬送する苗搬送機構と，この苗搬送機構にて圃場に近づくように搬送した苗を，前記苗搬送機構における苗の間欠送りを停止している時期において，上下方向への間欠的な往復動により圃場に対して植付けるようにした苗植付け機構とを設けるという構成にしている。
特開２００５−８０６２０号公報 特開２００６−８７３６９号公報 Conventionally, this kind of seedling transplanting machine is, for example, as described in Patent Documents 1 and 2 as the prior art, the seedlings placed on the upper surface of the endless transport body at a predetermined interval on the traveling machine body. The seedling transport mechanism that transports the seedlings so that they approach the field one by one by intermittent feeding, and the seedling transport mechanism that stops the seedling transporting mechanism so that the seedling transport mechanism stops intermittent seedling feeding , A seedling planting mechanism is provided which is planted in the field by intermittent reciprocating motion in the vertical direction.
JP 2005-80620 A JP 2006-87369 A

この従来の苗移植機においては，その苗搬送機構に対する駆動軸を，エンジンを動力源とする間欠回転機構にて間欠的に回転するように構成し，この駆動軸と，前記苗搬送機構における無端搬送体を巻掛けした少なくとも一本の案内軸との間にチエンを巻掛けし，このチエンを介して前記駆動軸における間欠回転を前記一本の案内軸に伝達することにより，前記苗搬送機構における無端搬送体の間欠送りを行うように構成している。   In this conventional seedling transplanter, the drive shaft for the seedling transport mechanism is configured to rotate intermittently by an intermittent rotation mechanism that uses an engine as a power source. The seedling transport mechanism is configured such that a chain is wound between at least one guide shaft around which the transport body is wound, and intermittent rotation of the drive shaft is transmitted to the one guide shaft through the chain. It is comprised so that intermittent feed of the endless conveyance body in may be performed.

しかし，このような駆動軸の間欠回転と，この駆動軸からのチエン伝動とによる間欠送りの構造では，間欠回転機構及びチエンを使用することで構造が著しく複雑で，可成り大型化するばかりか，重量が大幅にアップするという問題があった。   However, such an intermittent feed structure with intermittent rotation of the drive shaft and chain transmission from this drive shaft makes the structure extremely complex and considerably increases in size by using the intermittent rotation mechanism and chain. , There was a problem that the weight increased significantly.

本願発明は，前記苗移植機において，苗搬送機構における無端搬送体の間欠送りする機構の簡略化を図ることを技術的課題とする。   This invention makes it the technical subject to aim at simplification of the mechanism which intermittently feeds the endless conveyance body in a seedling conveyance mechanism in the said seedling transplanting machine.

この技術的課題を達成するため請求項１は，
「走行機体に，無端搬送体の上面に所定間隔で載せた苗を当該無端搬送体における間欠送りによって一本ずつ搬送する苗搬送機構と，この苗搬送機構にて搬送した苗を植付け体の下降動にて圃場に植付けるように苗植付け機構とを設けて成る苗移植機において，
前記苗搬送機構における無端搬送体を巻掛けした少なくとも一本の案内軸と，これに回転自在に被嵌した回転体との間に，前記回転体の一方向への回転のみを前記案内軸に伝達するようにしたワンウエイクラッチを設ける一方，前記回転体に，一端を弾性手段に連結して成る可撓性線状体を巻き付け，この可撓性線状体の他端を，動力源にて回転する駆動軸に偏芯して設けたクランクピンに，当該駆動軸における一回転中に前記弾性手段に抗して引っ張ったのち引っ張りを解除するように連結する。」
ことを特徴としている。 In order to achieve this technical problem, claim 1
“A seedling transport mechanism that transports seedlings placed on the upper surface of the endless transport body at predetermined intervals onto the traveling machine one by one by intermittent feeding in the endless transport body, and the seedling transported by this seedling transport mechanism is lowered In a seedling transplanting machine, which is equipped with a seedling planting mechanism so that it can be planted in the field by movement,
Between the at least one guide shaft around which the endless transport body is wound in the seedling transport mechanism and the rotary body that is rotatably fitted to the endless transport body, only the rotation of the rotary body in one direction is used as the guide shaft. While providing a one-way clutch for transmission, a flexible linear body having one end connected to an elastic means is wound around the rotating body, and the other end of the flexible linear body is connected to a power source. A crankpin provided eccentrically on the rotating drive shaft is connected so as to release the tension after being pulled against the elastic means during one rotation of the drive shaft. "
It is characterized by that.

請求項２は，
「前記請求項１の記載において，前記回転体に，当該回転体における前記無端搬送体の送り方向と逆方向への回転を阻止するようにした手段を備えている。」
ことを特徴としている。 Claim 2
“In the first aspect of the present invention, the rotating body is provided with means for preventing the rotating body from rotating in the direction opposite to the feeding direction of the endless transport body.”
It is characterized by that.

請求項３は，
「前記請求項１又は２の記載において，回転自在に枢着して成るレバーを設けて，このレバーに，前記可撓性線状体における他端及び前記駆動軸におけるクランクピンの各々を連結する。」
ことを特徴としている。 Claim 3
“In the first or second aspect of the present invention, a lever pivotally attached to the lever is provided, and the other end of the flexible linear body and the crank pin of the drive shaft are connected to the lever. . "
It is characterized by that.

請求項４は，
「前記請求項１〜３のいずれかの記載において，前記弾性手段が，線材をコイル状に巻いた引っ張りばねである。」
ことを特徴としている。 Claim 4
“In any one of claims 1 to 3, the elastic means is a tension spring in which a wire is wound in a coil shape.”
It is characterized by that.

請求項５は，
「前記請求項１〜４のいずれかの記載において，前記可撓性線状体に，ばね力調節手段を備えている。」
ことを特徴としている。 Claim 5
“In any one of claims 1 to 4, the flexible linear body is provided with a spring force adjusting means.”
It is characterized by that.

請求項１に記載した構成において，無端搬送体の案内軸に回転自在の回転体に巻き付けた可撓性線状体が，駆動軸の一回転中において，その一端の弾性手段に抗する方向に移動したのち前記弾性手段にて元の位置に戻るというように往復動することにより，前記回転体が，所定の回転角度の範囲内において往復回転する。   In the configuration described in claim 1, the flexible linear body wound around the rotatable rotating body around the guide shaft of the endless conveying body in a direction against the elastic means at one end thereof during one rotation of the driving shaft. By reciprocating so as to return to the original position by the elastic means after moving, the rotating body reciprocates within a predetermined rotation angle range.

この往復回転のうち一方向の回転のみがワンウエイクラッチを介して前記案内軸に伝達されて，案内軸が所定の回転角度だけ一方向に回転されることになるから，前記無端搬送体を間欠送りすることができる。   Of the reciprocating rotation, only rotation in one direction is transmitted to the guide shaft via the one-way clutch, and the guide shaft is rotated in one direction by a predetermined rotation angle. can do.

その一方で，前記回転体と案内軸との間にはワンウエイクラッチが存在していることにより，前記無端搬送体を，前記所定の間欠送り方向に，手動操作で自由に手動送りすることができる。   On the other hand, since a one-way clutch exists between the rotating body and the guide shaft, the endless transport body can be manually fed freely in the predetermined intermittent feeding direction by manual operation. .

つまり，本発明によると，前記苗搬送機構における無端搬送体の間欠送りを，従来のように，駆動軸に対する間欠回転機構と，この駆動軸から案内軸へのチエン伝動とによることなく，駆動軸の回転にて可撓性線状体を引っ張るという極く簡単な構成にて行うことができるから，前記無端搬送体を手動送りが自由にできる状態のもとで，大幅に小型化できるとともに，大幅に軽量化できる。   That is, according to the present invention, the intermittent feed of the endless transport body in the seedling transport mechanism does not depend on the intermittent rotation mechanism with respect to the drive shaft and the chain transmission from the drive shaft to the guide shaft as in the prior art. Since the flexible linear body can be pulled with a simple rotation, the endless transport body can be greatly reduced in size while allowing manual feed to be freely performed. The weight can be greatly reduced.

この場合，請求項２にした構成にすることより，前記回転体における前記無端搬送体の送り方向への回転を，常に同じ角度ずつ行うことができるから，間欠送りの確実性を向上できる。   In this case, with the configuration according to the second aspect, the rotation of the rotating body in the feeding direction of the endless transport body can always be performed at the same angle, so that the reliability of intermittent feeding can be improved.

ところで，前記可撓性線状体を往復動するときのストロークは，前記駆動軸における回転中心からクランクピンまでのクランク半径によってもたらされる。   By the way, the stroke when reciprocating the flexible linear body is caused by the crank radius from the rotation center of the drive shaft to the crankpin.

そこで，請求項３に記載した構成にすることにより，レバーにおける回転中心から前記可撓性線状体の他端に対する連結点までの長さと，レバーにおける回転中心から前記クランクピンに対する連結点までの長さとの比率を適宜変更することにより，前記クランク半径を，前記所定の往復動ストロークを得ることができる状態のもとで，大きくしたり，或いは，小さくしたりすることが任意にでき，前者の場合には，駆動動力の軽減を図ることができる一方，前者の場合には，クランク機構の小型・軽量化を図ることができる。   Therefore, by adopting the configuration described in claim 3, the length from the rotation center of the lever to the connection point to the other end of the flexible linear body, and the distance from the rotation center of the lever to the connection point to the crank pin are provided. By appropriately changing the ratio to the length, the crank radius can be arbitrarily increased or decreased under the condition that the predetermined reciprocating stroke can be obtained. In this case, the driving power can be reduced, while in the former case, the crank mechanism can be reduced in size and weight.

特に，請求項４に記載した構成にすることにより，弾性手段の小型・軽量化を図ることができ，また，請求項５に記載した構成にすることにより，前記可撓性線状体の回転体に対する接触圧を，ばね力調節手段にて，前記可撓性線状体及び前記引っ張りばねの延び変形に対して略一定に保持するように調節できるから，前記可撓性線状体による前記無端搬送体の間欠送りをより確実にできる。   In particular, the structure described in claim 4 can reduce the size and weight of the elastic means, and the structure described in claim 5 can rotate the flexible linear body. The contact pressure on the body can be adjusted by the spring force adjusting means so as to be held substantially constant against the deformation of the flexible linear body and the tension spring. Intermittent feeding of the endless carrier can be made more reliable.

以下，本発明の実施の形態を図面について説明する。   Embodiments of the present invention will be described below with reference to the drawings.

これらの図に示す苗移植機１は，圃場における畝に沿って走行しながら，甘しょにおけるつる苗を前記畝に対して一定の間隔で植え付けるようにした歩行型の自走式作業機であり，前記畝の両側を走行する左右一対の前輪２及び後輪３と，畝上面の上方に位置するようにして前記両前輪２及び両後輪３にて支持される走行機体４を備えている。   The seedling transplanting machine 1 shown in these figures is a walking type self-propelled working machine in which vine seedlings in sweet potatoes are planted at regular intervals on the straw while traveling along the straw in the field. , A pair of left and right front wheels 2 and rear wheels 3 traveling on both sides of the saddle, and a traveling machine body 4 supported by the front wheels 2 and the rear wheels 3 so as to be located above the upper surface of the saddle. .

前記走行機体４は，エンジン５が搭載された前側のエンジンフレーム６と，前記エンジン５の動力を入力とする中央部のミッションケース７と，後側のハンドルフレーム８とを，前後方向に連結固定して構成されており，この走行機体４に後述する各種装置が装着されている。   In the traveling machine body 4, a front engine frame 6 on which an engine 5 is mounted, a central transmission case 7 that receives power from the engine 5, and a rear handle frame 8 are connected and fixed in the front-rear direction. Various devices to be described later are attached to the traveling machine body 4.

すなわち，前記走行機体４には，前記各種装置として，走行方向の前方より後方に向けて，畝ガイド機構９，前輪支持機構１０，後輪支持機構１１，畝高さ検出機構１２，苗搬送機構１３，苗植付け機構１４，鎮圧機構１５及び運転操作部１６が装着されている。   That is, the traveling machine body 4 includes, as the various devices, a heel guide mechanism 9, a front wheel support mechanism 10, a rear wheel support mechanism 11, a heel height detection mechanism 12, a seedling transport mechanism from the front to the rear in the traveling direction. 13, a seedling planting mechanism 14, a pressure suppressing mechanism 15, and a driving operation unit 16 are mounted.

前記畝ガイド機構９は，畝に沿って走行する苗移植機１の走行方向を案内するための装置であり，畝の左右側面（斜面）に当接させるための畝ガイドローラ９ａを左右一対備えている。これらの畝ガイドローラ９ａ，９ａ間に畝を挟み込み，または，斜面に当接させながら転動させて，この状態で苗移植機１を走行させることで，苗移植機１を運転操作により方向制御することなく，畝に沿って走行させることが可能である。   The cocoon guide mechanism 9 is a device for guiding the traveling direction of the seedling transplanter 1 that travels along the cocoon, and includes a pair of left and right cocoon guide rollers 9a for contacting the left and right side surfaces (slopes) of the cocoon. ing. By controlling the seedling transplanter 1 by operating the seedling transplanter 1 by driving the seedling transplanter 1 in this state by sandwiching the cage between these rod guide rollers 9a, 9a or rolling it while contacting the slope. It is possible to run along the fence without having to.

前記前輪支持機構１０及び後輪支持機構１１は，前記両前輪２及び両後輪３に対して前記走行機体４を自在に昇降動するという構成であり，そのうち後輪支持機構１１には，前記ミッションケース７から前記両後輪３への動力伝達機構を備え，両後輪３の駆動回転により前進走行するように構成している。   The front wheel support mechanism 10 and the rear wheel support mechanism 11 are configured to freely move the traveling machine body 4 up and down relative to the front wheels 2 and the rear wheels 3, of which the rear wheel support mechanism 11 includes the A power transmission mechanism from the transmission case 7 to both the rear wheels 3 is provided, and is configured to travel forward by driving rotation of both rear wheels 3.

また，前記走行機体４におけるエンジンフレーム６には，当該走行機体４を前記両前輪２及び両後輪３に対して昇降動するための単動式の油圧シリンダ１７が設けられ，この油圧シリンダ１７を，前記ハンドルフレーム８に設けた昇降動レバー１８に関連し，この昇降動レバー１８を後方の機体上げ位置に操作したとき，前記ミッションケース７から前記苗搬送機構１３，苗植付け機構１４及び鎮圧機構１５への動力伝達をＯＦＦにした状態で，油圧シリンダ１７が走行機体４を最も高い位置まで上昇動するように作動し，前記昇降動レバー１８を前方の機体下げ位置に操作したとき，前記ミッションケース７から前記苗搬送機構１３，苗植付け機構１４及び鎮圧機構１５への動力伝達をＯＮにした状態で，前記油圧シリンダ１７が走行機体４を下降するように作動して，所定の苗植付け作業状態になるように構成されている。   The engine frame 6 of the traveling machine body 4 is provided with a single-acting hydraulic cylinder 17 for moving the traveling machine body 4 up and down relative to the front wheels 2 and the rear wheels 3. Is related to the lift lever 18 provided on the handle frame 8, and when the lift lever 18 is operated to the rear body lifting position, the seedling transport mechanism 13, the seedling planting mechanism 14 and the pressure-reducing mechanism are transmitted from the mission case 7. With the power transmission to the mechanism 15 turned off, the hydraulic cylinder 17 operates to raise the traveling machine body 4 to the highest position, and when the elevating lever 18 is operated to the front machine lowering position, With the power transmission from the mission case 7 to the seedling transport mechanism 13, the seedling planting mechanism 14 and the pressure reducing mechanism 15 turned on, the hydraulic cylinder 17 is operated as a traveling body. It operates to descend and is configured so as to have a predetermined planting work state.

この苗植付け作業状態における苗の植付け深さは，前記畝高さ検出機構１２による畝高さの検出に基づいて行なわれるものであり，前記畝高さ検出機構１２には，図１に示すように，畝上面に接触するセンサローラ１２ａと，このセンサローラ１２ａを支持しエンジンフレーム６に回動自在に設けられるセンサアーム１２ｂとで構成され，前記畝の上面からの高さ，つまり，苗の植付け深さを略一定に保持するように構成している。   The seedling planting depth in this seedling planting operation state is based on the detection of the cocoon height by the cocoon height detection mechanism 12, and the cocoon height detection mechanism 12 has a configuration as shown in FIG. The sensor roller 12a is in contact with the upper surface of the cocoon, and the sensor arm 12b is rotatably provided on the engine frame 6 to support the sensor roller 12a. The planting depth is configured to be kept substantially constant.

次に，前記苗搬送機構１３について説明する。図３及び図４に示すように，この苗搬送機構１３は，走行機体４とは別体で構成されており，この走行機体４の組立後において，これに取り付けることが可能である。苗搬送機構１３の配設位置は，ミッションケース７の後方かつハンドルフレーム８の上方位置である。   Next, the seedling transport mechanism 13 will be described. As shown in FIGS. 3 and 4, the seedling transport mechanism 13 is configured separately from the traveling machine body 4, and can be attached to the traveling machine body 4 after assembly. The seedling transport mechanism 13 is disposed behind the mission case 7 and above the handle frame 8.

この苗搬送機構１３は，前記ミッションケース７から出力される駆動軸１９の回転にて駆動される構成であり，この苗搬送機構１３には，図３に示すように，前記走行機体４における左右両側の部位に前後方向に延びるように配設した左右一対の案内軸２０，２１の間に巻掛けして成る搬送ベルト（無端搬送体）２２を備えている。   The seedling transport mechanism 13 is configured to be driven by the rotation of the drive shaft 19 output from the mission case 7, and the seedling transport mechanism 13 includes a left and right side of the traveling machine body 4 as shown in FIG. A conveyance belt (endless conveyance body) 22 is provided that is wound between a pair of left and right guide shafts 20 and 21 that are disposed so as to extend in the front-rear direction at both sides.

前記搬送ベルト２２の外周面には，複数個の苗収容部２３が当該搬送ベルト２２の長手方向に所定のピッチＰの間隔で設けられ，この各苗収容部２３内の各々には，つる苗Ａを着脱自在に保持するための把持部２４が設けられている。   A plurality of seedling storage portions 23 are provided on the outer peripheral surface of the transport belt 22 at intervals of a predetermined pitch P in the longitudinal direction of the transport belt 22. A grip portion 24 is provided for holding A detachably.

前記搬送ベルト２２は，作業者がその上面側において各苗収容部２３につる苗Ａを載せるように供給すると，矢印Ｂで示す方向に，前記各苗収容部２３のピッチＰの間隔で間欠的に送り移動するように構成されており，この矢印Ｂの方向への間欠送りにて，下面の略中央に位置する二本のガイドローラ２５の箇所にまで前記つる苗Ａを搬送するもので，この搬送ベルト２２のうち前記一方の案内軸２０から前記両ガイドローラ２５までの区間部分における外側には，前記各苗収容部２３に供給したつる苗Ａが当該苗収容部２３から落下しないように保持するためのガイド板２６が設けられている。   The conveyor belt 22 is intermittently provided at intervals of the pitch P of each seedling accommodating part 23 in the direction indicated by the arrow B when an operator supplies the seedling A to be placed on each seedling accommodating part 23 on the upper surface side. In the intermittent feed in the direction of the arrow B, the vine seedling A is conveyed to the two guide rollers 25 located at the approximate center of the lower surface. A vine seedling A supplied to each seedling container 23 is prevented from dropping from the seedling container 23 on the outer side of the section of the conveyor belt 22 from the one guide shaft 20 to the both guide rollers 25. A guide plate 26 for holding is provided.

前記苗植付け機構１４は，前記ミッションケース７から出力される動力にて，前記苗搬送機構１３における二本のガイドローラ２５と圃場における畝との間を，図１に二点鎖線で示す運動軌跡に沿って上下方向に往復動する左右一対の植付け体２７を備えており，この植付け体２７は，これが上昇上限に位置するときにおいて，前記搬送ベルト２２の間欠送りにより前記二本のガイドローラ２５の箇所につる苗Ａが送り込まれると，前記間欠が送りが停止しているときにおいて，このつる苗Ａを摘んで下降動することにより，つる苗Ａを畝に対して押し込むように植付けして，元の上昇位置に戻ると，前記搬送ベルト２２が一ピッチＰだけ間欠送りするように，前記搬送ベルト２２の間欠送りと連動するように構成されている。   The seedling planting mechanism 14 uses the power output from the mission case 7 to move between the two guide rollers 25 in the seedling transporting mechanism 13 and the straw in the field, as indicated by a two-dot chain line in FIG. A pair of right and left planted bodies 27 that reciprocate in the vertical direction along the upper and lower sides, and when the planted body 27 is located at the upper limit, the two guide rollers 25 are intermittently fed by the conveyor belt 22. When the vine seedling A is sent to the place of the vine, when the intermittent is stopped, the vine seedling A is picked and moved downward to plant the vine seedling A so that it is pushed into the pod. , When returning to the original ascending position, the conveying belt 22 is intermittently fed by one pitch P so as to be interlocked with the intermittent feeding of the conveying belt 22.

また，前記鎮圧機構１５は，前記苗植付け機構１４の植付け体２７における上下方向への往復動に連動して上下動する鎮圧体１５ａを備え，前記植付け体２７が畝に対するつる苗Ａの押し込み植付けを終わって上昇動すると，前記鎮圧体１５ａがその下降動にて畝のうち前記つる苗Ａの植付け箇所を押圧して，固めるように構成している。   Moreover, the said suppression body 15 is equipped with the suppression body 15a which moves up and down in response to the reciprocation to the up-down direction in the planting body 27 of the said seedling planting mechanism 14, and the said planting body 27 pushes the vine seedling A into the cocoon. When the lifter moves upward after finishing the above, the pressure-reducing body 15a is configured to press and harden the planting location of the vine seedling A in the heel by the downward movement.

そして，本発明において，前記苗搬送機構１３における搬送ベルト２２を，前記矢印Ｂの方向に，その苗収容部２３のピッチＰの間隔で間欠送りするに際しては，以下に述べるように，図５〜図７に示す構成を採用している。   In the present invention, when the conveying belt 22 in the seedling conveying mechanism 13 is intermittently fed in the direction of the arrow B at an interval of the pitch P of the seedling accommodating portion 23, as described below, FIG. The configuration shown in FIG. 7 is adopted.

すなわち，前記搬送ベルト２２を巻掛けした左右の案内軸２０，２１のうち一方の案内軸２０上には，回転体２８が回転自在に被嵌され，この回転体２８と前記一方の案内軸２０との間には，ワンウエイクラッチ３０が設けられている。   That is, a rotating body 28 is rotatably fitted on one guide shaft 20 of the left and right guide shafts 20, 21 around which the conveyor belt 22 is wound, and the rotating body 28 and the one guide shaft 20. Between the two, a one-way clutch 30 is provided.

このワンウエイクラッチ２９は，前記一方の案内軸２０に被嵌した状態でキー止めされたクラッチ体３０を備え，このクラッチ体３０の外周には，三つの爪片３１を円周方向に１２０度の間隔で設けられ，この１２０度の回転角度が，前記搬送ベルト２２における１ピッチＰの間隔と等しくするように構成されている。   The one-way clutch 29 includes a clutch body 30 that is keyed in a state of being fitted on the one guide shaft 20, and three claw pieces 31 are arranged at 120 degrees in the circumferential direction on the outer periphery of the clutch body 30. The rotation angle of 120 degrees is set to be equal to the interval of 1 pitch P in the conveyor belt 22.

一方，前記回転体２８には，これに装着した半円形ばね３２による押圧で前記三つの爪片３１のうち少なくとも一つに対して着脱自在に係合するピン３３が半径方向に自在に摺動するように設けられ，前記回転体２８が前記搬送ベルト２２の矢印Ｂで示す間欠送りの方向に回転するとき，この回転が前記ピン３３を介して前記クラッチ体３０に伝達され，前記一方の案内軸２０が矢印Ｂ方向に回転する一方，前記回転体２８が前記矢印Ｂと逆方向に回転するとき，前記ピン３３がクラッチ体３０の爪片３１における後ろ側傾斜面に乗り上げることにより，前記一方の案内軸２０には，前記回転体２８における逆方向の回転は伝達されないように構成している。   On the other hand, on the rotating body 28, a pin 33 detachably engaged with at least one of the three claw pieces 31 by sliding with a semicircular spring 32 attached thereto slides freely in the radial direction. When the rotating body 28 rotates in the intermittent feed direction indicated by the arrow B of the conveyor belt 22, this rotation is transmitted to the clutch body 30 via the pin 33, and the one guide When the shaft 20 rotates in the direction of the arrow B and the rotating body 28 rotates in the direction opposite to the arrow B, the pin 33 rides on the rear inclined surface of the claw piece 31 of the clutch body 30, thereby The guide shaft 20 is configured such that the rotation of the rotating body 28 in the reverse direction is not transmitted.

なお，図７において，符号３４は，前記一方の案内軸２１における矢印Ｂと逆方向への回転を阻止するための手段の一つの例であるところの板ばね体である。   In FIG. 7, reference numeral 34 denotes a leaf spring body as an example of means for preventing the one guide shaft 21 from rotating in the direction opposite to the arrow B.

そして，前記回転体２８の外周面には，細い金属線を撚りあわせて成るワイヤー等の可撓性線状体３５を巻き付け，この可撓性線状体３５の一端３５ａを，前記苗供給機構１３の支持フレーム３６等に対して弾性手段としての一つの例であるところの線材をコイル状に巻いた構成にした引っ張りばね３７を介して係着する一方，他端３５ｂを，前記支持フレーム３６等に対してピン３８にて回転自在に枢着したレバー３９の一端３９ａに，長さ調節によって前記引っ張りばね３７におけるばね力の増減調節を行うようにしたばね力調節手段４０を介して係着する。   A flexible linear body 35 such as a wire formed by twisting thin metal wires is wound around the outer peripheral surface of the rotating body 28, and one end 35a of the flexible linear body 35 is connected to the seedling supply mechanism. The support frame 36 and the like 13 are engaged with each other via a tension spring 37 in which a wire material, which is an example of elastic means, is wound in a coil shape, while the other end 35b is connected to the support frame 36. An end 39a of a lever 39 pivotally attached to a pin 38 by means of a pin 38 is attached via a spring force adjusting means 40 that adjusts the spring force in the tension spring 37 by adjusting the length. To do.

なお，このばね力調節手段４０は，前記引っ張りばね３７と可撓性線状体３５の一端との間，又は，前記引っ張りばね３７と支持フレーム３６との間に設ける構成にすることができる。   The spring force adjusting means 40 can be provided between the tension spring 37 and one end of the flexible linear body 35 or between the tension spring 37 and the support frame 36.

前記苗供給機構１３に対する前記駆動軸１９には，クランク円板４１を固着し，このクランク円板４１には，その回転中心から偏芯した位置にクランクピン４２を設け，このクランクピン４２に，前記レバー３９の他端３９ｂを，ロッド４３を介して連結することにより，前記駆動軸１９にて，この一回転中において，前記可撓性線状体３５を前記引っ張りばね３７に抗して前記回転体２８を１２０度だけ回転するように引っ張ったのちこの引っ張りを解除するように構成している。   A crank disk 41 is fixed to the drive shaft 19 with respect to the seedling supply mechanism 13, and a crank pin 42 is provided at a position eccentric from the rotation center of the crank disk 41. By connecting the other end 39b of the lever 39 via the rod 43, the flexible linear body 35 is resisted against the tension spring 37 during the rotation of the drive shaft 19 by the rotation of the drive shaft 19. After the rotary body 28 is pulled so as to rotate by 120 degrees, the pull is released.

つまり，前記駆動軸１９の回転により，その一回転中において前記可撓性線状体３５が前記引っ張りばね３７に抗して前記回転体２８を１２０度だけ回転するように引っ張られ，この回転体２８における１２０度の回転がワンウエイクラッチ２９を介して一方の案内軸２０に伝達されるから，前記苗供給機構１３における搬送ベルト２２は，矢印Ｂの方向に，その苗収容部２３のピッチＰの間隔で間欠送りされる。   That is, due to the rotation of the drive shaft 19, the flexible linear body 35 is pulled so as to rotate the rotating body 28 by 120 degrees against the tension spring 37 during one rotation. Since the rotation of 120 degrees at 28 is transmitted to one guide shaft 20 via the one-way clutch 29, the conveyor belt 22 in the seedling supply mechanism 13 is set to the pitch P of the seedling accommodating portion 23 in the direction of arrow B. Intermittent feed at intervals.

前記可撓性線状体３５は，駆動軸１９の回転に伴って前記引っ張りが解除されると，前記引っ張りばね３７によって，前記回転体２８を前記間欠送り方向Ｂとは逆方向に１２０度だけ戻し回転するように引き戻されるのであり，これを繰り返すことにより，前記苗搬送機構１３における搬送ベルト２２を，前記矢印Ｂの方向に，その苗収容部２３のピッチＰの間隔で間欠送りするのである。   When the tension is released along with the rotation of the drive shaft 19, the flexible linear body 35 moves the rotating body 28 by 120 degrees in the direction opposite to the intermittent feed direction B by the tension spring 37. It is pulled back so as to rotate back, and by repeating this, the conveying belt 22 in the seedling conveying mechanism 13 is intermittently fed in the direction of the arrow B at an interval of the pitch P of the seedling accommodating portion 23. .

また，前記回転体２８と，一方の案内軸２０との間には，前記した構成のワンウエイクラッチ２９が存在していることにより，前記搬送ベルト２２を，前記駆動軸１９の回転にかかわらず，所定の間欠送り方向に，手動操作で自由に手動送りすることができる。   In addition, since the one-way clutch 29 having the above-described configuration exists between the rotating body 28 and one of the guide shafts 20, the conveying belt 22 can be connected regardless of the rotation of the driving shaft 19. Manual feed can be freely performed manually in a predetermined intermittent feed direction.

前記実施の形態においては，レバー３９において，その回転中心（ピン３８の中心）から一端３９ａ，つまり，前記可撓性線状体３５の他端に対する連結点までの長さＬ１を，その回転中心（ピン３８の中心）から他端３９ｂ，つまり，前記ロッド４３に対する連結点までの長さＬ２よりも可成り長くすることによって，前記駆動軸１９の回転中心から前記クランクピン４２までのクランク半径Ｒを小さくするという構成にしているが，前記Ｌ１とＬ２との比率を適宜変更することにより，前記クランク半径Ｒを大きくしたり，小さくしたりするように任意に設定することができ，また，前記可撓性線状体３５の回転体２８に対する接触圧を，ばね力調節手段４０にて，前記可撓性線状体３５及び前記引っ張りばね３７の延び変形に対して略一定に保持するように調節できる。   In the above-described embodiment, the lever 39 has a length L1 from the center of rotation (the center of the pin 38) to one end 39a, that is, the connecting point to the other end of the flexible linear body 35. The crank radius R from the rotation center of the drive shaft 19 to the crank pin 42 is made considerably longer than the length L2 from the center of the pin 38 to the other end 39b, that is, the connecting point to the rod 43. However, by appropriately changing the ratio of L1 and L2, the crank radius R can be arbitrarily set so as to be increased or decreased. The contact pressure of the flexible linear body 35 with respect to the rotating body 28 is substantially reduced with respect to the deformation of the flexible linear body 35 and the tension spring 37 by the spring force adjusting means 40. It can be adjusted to hold a constant.

なお，前記実施の形態は，前記回転体２８を１２０度ずつ送り回転する場合であったが，本発明はこれに限らず，前記回転体２８を，３６０度，１８０度又は９０度ずつ送り回転するように構成することができるほか，前記実施の形態のように，可撓性線状体３５を引っ張りばね３７に抗して引っ張るときに前記回転体２８を送り回転することに代えて，前記可撓性線状体３５を引っ張りばね３７にて引き戻すときにおいて前記回転体２８を送り回転するように構成することができる。   In the above embodiment, the rotating body 28 is fed and rotated by 120 degrees. However, the present invention is not limited to this, and the rotating body 28 is fed and rotated by 360 degrees, 180 degrees, or 90 degrees. In addition to the configuration described above, instead of feeding and rotating the rotating body 28 when the flexible linear body 35 is pulled against the tension spring 37 as in the above-described embodiment, When the flexible linear body 35 is pulled back by the tension spring 37, the rotating body 28 can be fed and rotated.

本発明による実施の形態の苗移植機を示す全体側面図である。It is a whole side view showing a seedling transplanter of an embodiment by the present invention. 図１の平面図である。It is a top view of FIG. 図１のIII −III 視拡大断面図である。FIG. 3 is an enlarged sectional view taken along line III-III in FIG. 1. 図３の平面図である。FIG. 4 is a plan view of FIG. 3. 図３の要部拡大図である。It is a principal part enlarged view of FIG. 図５のVI−VI視断面図である。FIG. 6 is a sectional view taken along line VI-VI in FIG. 5. 図６のVII −VII 視拡大断面図である。FIG. 7 is an enlarged sectional view taken along the line VII-VII in FIG. 6.

符号の説明Explanation of symbols

１ 苗移植機
２ 前輪
３ 後輪
４ 走行機体
５ エンジン
７ ミッションケース
１３ 苗搬送機構
１４ 苗植付け機構
１９ 駆動軸
２０，２１ 案内軸
２２ 搬送ベルト（無端搬送体）
２８ 回転体
２９ ワンウエイクラッチ
３５ 可撓性線状体
３７ 引っ張りばね
３９ レバー
４０ ばね力調節手段
４１ クランク円板
４２ クランクピン DESCRIPTION OF SYMBOLS 1 Seedling transplanter 2 Front wheel 3 Rear wheel 4 Traveling machine body 5 Engine 7 Mission case 13 Seedling transport mechanism 14 Seedling planting mechanism 19 Drive shaft 20, 21 Guide shaft 22 Transport belt (endless transport body)
28 Rotating body 29 One-way clutch 35 Flexible linear body 37 Tension spring 39 Lever 40 Spring force adjusting means 41 Crank disk 42 Crank pin

Claims (5)

走行機体に，無端搬送体の上面に所定間隔で載せた苗を当該無端搬送体における間欠送りによって一本ずつ搬送する苗搬送機構と，この苗搬送機構にて搬送した苗を植付け体の下降動にて圃場に植付けるように苗植付け機構とを設けて成る苗移植機において，
前記苗搬送機構における無端搬送体を巻掛けした少なくとも一本の案内軸と，これに回転自在に被嵌した回転体との間に，前記回転体の一方向への回転のみを前記案内軸に伝達するようにしたワンウエイクラッチを設ける一方，前記回転体に，一端を弾性手段に連結して成る可撓性線状体を巻き付け，この可撓性線状体の他端を，動力源にて回転する駆動軸に偏芯して設けたクランクピンに，当該駆動軸における一回転中に前記弾性手段に抗して引っ張ったのち引っ張りを解除するように連結することを特徴とする苗移植機。 A seedling transport mechanism that transports seedlings placed on the upper surface of the endless transport body at a predetermined interval to the traveling machine one by one by intermittent feeding in the endless transport body, and a descending movement of the seedling transported by the seedling transport mechanism In the seedling transplanting machine, which is equipped with a seedling planting mechanism so that it can be planted in the field,
Between the at least one guide shaft around which the endless transport body is wound in the seedling transport mechanism and the rotary body that is rotatably fitted to the endless transport body, only the rotation of the rotary body in one direction is used as the guide shaft. While providing a one-way clutch for transmission, a flexible linear body having one end connected to an elastic means is wound around the rotating body, and the other end of the flexible linear body is connected to a power source. A seedling transplanter characterized in that it is connected to a crank pin eccentrically provided on a rotating drive shaft so as to release the tension after pulling against the elastic means during one rotation of the drive shaft. 前記請求項１の記載において，前記回転体に，当該回転体における前記無端搬送体の送り方向と逆方向への回転を阻止するようにした手段を備えていることを特徴とする苗移植機。   The seedling transplanter according to claim 1, wherein the rotating body is provided with means for preventing the rotating body from rotating in the direction opposite to the feeding direction of the endless transport body. 前記請求項１又は２の記載において，回転自在に枢着して成るレバーを設けて，このレバーに，前記可撓性線状体における他端及び前記駆動軸におけるクランクピンの各々を連結することを特徴とする苗移植機。   3. The lever according to claim 1 or 2, wherein a lever pivotally mounted is provided, and the other end of the flexible linear body and the crank pin of the drive shaft are connected to the lever. A seedling transplanter characterized by. 前記請求項１〜３のいずれかの記載において，前記弾性手段が，線材をコイル状に巻いた引っ張りばねであることを特徴とする苗移植機。   The seedling transplanter according to any one of claims 1 to 3, wherein the elastic means is a tension spring in which a wire is wound in a coil shape. 前記請求項１〜４のいずれかの記載において，前記可撓性線状体に，ばね力調節手段を備えていることを特徴とする苗移植機。   The seedling transplanting machine according to any one of claims 1 to 4, wherein the flexible linear body is provided with a spring force adjusting means.
JP2007058614A 2007-03-08 2007-03-08 Seedling transplanter Expired - Fee Related JP4636624B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2007058614A JP4636624B2 (en) 2007-03-08 2007-03-08 Seedling transplanter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2007058614A JP4636624B2 (en) 2007-03-08 2007-03-08 Seedling transplanter

Publications (2)

Publication Number Publication Date
JP2008220187A true JP2008220187A (en) 2008-09-25
JP4636624B2 JP4636624B2 (en) 2011-02-23

Family

ID=39839522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2007058614A Expired - Fee Related JP4636624B2 (en) 2007-03-08 2007-03-08 Seedling transplanter

Country Status (1)

Country Link
JP (1) JP4636624B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108811633A (en) * 2018-06-25 2018-11-16 巢湖学院 A kind of integrated form seedlings plugging machine
CN112616387A (en) * 2020-12-28 2021-04-09 安徽金丰机械有限公司 Shifting fork for garlic seeder
CN114873166A (en) * 2022-05-20 2022-08-09 徐仁芝 Automatic assembly production line

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0345482U (en) * 1989-09-11 1991-04-26
JP2005080620A (en) * 2003-09-11 2005-03-31 Iseki & Co Ltd Seedling transplanting machine
JP2006087369A (en) * 2004-09-24 2006-04-06 Yanmar Co Ltd Sweet potato seedling-inserting machine

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0345482U (en) * 1989-09-11 1991-04-26
JP2005080620A (en) * 2003-09-11 2005-03-31 Iseki & Co Ltd Seedling transplanting machine
JP2006087369A (en) * 2004-09-24 2006-04-06 Yanmar Co Ltd Sweet potato seedling-inserting machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108811633A (en) * 2018-06-25 2018-11-16 巢湖学院 A kind of integrated form seedlings plugging machine
CN108811633B (en) * 2018-06-25 2021-02-19 巢湖学院 Integrated seedling inserting machine
CN112616387A (en) * 2020-12-28 2021-04-09 安徽金丰机械有限公司 Shifting fork for garlic seeder
CN114873166A (en) * 2022-05-20 2022-08-09 徐仁芝 Automatic assembly production line
CN114873166B (en) * 2022-05-20 2023-12-15 南京嘉翼精密机器制造股份有限公司 Automatic assembly production line

Also Published As

Publication number Publication date
JP4636624B2 (en) 2011-02-23

Similar Documents

Publication Publication Date Title
KR101570720B1 (en) Seedling transplanter
JP4636624B2 (en) Seedling transplanter
JP4635723B2 (en) Seedling transplanter
JP2006333722A5 (en)
JP5146298B2 (en) Seedling transplanter
JP5020017B2 (en) Seedling transplanter
JP4913700B2 (en) Seedling transplanter
JP4963283B2 (en) Seedling transplanter
JP2006314293A (en) Seedling transplanting machine for multi-row planting
JP2008307057A (en) Seedling transplanter
JP4483685B2 (en) Seedling transplanter
JP6056535B2 (en) Seedling transplanter
JP2008200055A (en) Seedling transplanter
JP2012217368A (en) Seedling transplanter
JP2009082094A (en) Seedling transplanter
JP2016116529A (en) Seedling transplanter
JP6295511B2 (en) Seedling transplanter
JP3800183B2 (en) Seedling transplanter
JP2014158425A5 (en)
JP2007029028A (en) Seedling transplanter
JP5843031B2 (en) Seedling transplanter
JP2011050264A (en) Seedling transplanter
JP4157067B2 (en) Transplanter
JP5737212B2 (en) Seedling transplanter
JP7330501B2 (en) foliage processing machine

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090701

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20100917

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101117

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101119

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131203

Year of fee payment: 3

R150 Certificate of patent (=grant) or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131203

Year of fee payment: 3

S531 Written request for registration of change of domicile

Free format text: JAPANESE INTERMEDIATE CODE: R313531

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131203

Year of fee payment: 3

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131203

Year of fee payment: 3

FPAY Renewal fee payment (prs date is renewal date of database)

Free format text: PAYMENT UNTIL: 20141203

Year of fee payment: 4

LAPS Cancellation because of no payment of annual fees