JPH08266123A - Seedling transplanting mechanism - Google Patents

Seedling transplanting mechanism

Info

Publication number
JPH08266123A
JPH08266123A JP7746495A JP7746495A JPH08266123A JP H08266123 A JPH08266123 A JP H08266123A JP 7746495 A JP7746495 A JP 7746495A JP 7746495 A JP7746495 A JP 7746495A JP H08266123 A JPH08266123 A JP H08266123A
Authority
JP
Japan
Prior art keywords
gear
intermediate gear
rotation
case
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.)
Pending
Application number
JP7746495A
Other languages
Japanese (ja)
Inventor
Mamoru Kubo
守 久保
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP7746495A priority Critical patent/JPH08266123A/en
Priority to TW85101789A priority patent/TW318773B/zh
Priority to KR1019960004734A priority patent/KR100193458B1/en
Priority to CN96106085A priority patent/CN1067840C/en
Publication of JPH08266123A publication Critical patent/JPH08266123A/en
Pending legal-status Critical Current

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  • Transplanting Machines (AREA)

Abstract

PURPOSE: To obtain a seedling transplanting mechanism capable of smoothly performing a seedling uprooting action by accurately supporting a planting claw supporter and accurately supporting plural gear rows for relatively revolving. CONSTITUTION: In a seedling transplanting mechanism indirectly having a gear type relative revolving means relatively revolve-driving a transplanting claw- supporting case 13 having a seedling transplanting claw 12 and a rotatable case 10 as a top end part of the seedling transplanting claw 12 to drive about ellipsoidal locus according to a rotation of the rotatable case 10, an eccentric core crank type revolution-transmitting mechanism revolving a first intermediate gear and a second intermediate gear having respectively eccentric rotating shaft core at different speed on an intermediate transmitting part between a sun gear in a position-fixing state and a planet gear fixed on a supporting shaft are fitted on a plantation-transmitting case 3, and the first intermediate gear and the second intermediate gear are supported by respective rotating supporting shaft in a cantilever-like to the rotatable case 10 in the free end sides are mutually opposed state, and respective opposing end faces are placed to be mutually contacted.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、固定部材に対して第1
軸芯周りで回転自在に支持された回転ケースに、前記第
1軸芯と平行な第2軸芯周りで相対回動自在に、苗植付
爪が取付けられた植付爪支持体を軸支し、前記植付爪支
持体を一体的に回動する状態で軸支する支持軸と、前記
固定部材との間に、前記回転ケースの回転に伴って、前
記苗植付爪の先端部が略楕円軌跡を描くように、前記植
付爪支持体と前記回転ケースとを相対回動駆動させるギ
ア式の相対回動手段を介装してある苗植付機構に関す
る。
BACKGROUND OF THE INVENTION The present invention relates to a first fixing member.
A planting claw support having a seedling planting claw attached thereto is pivotally supported on a rotating case rotatably supported around the shaft center so as to be relatively rotatable around a second shaft center parallel to the first shaft center. However, between the support shaft that supports the planting claw support in a state of integrally rotating, and the fixing member, the tip of the seedling planting claw is provided with the rotation of the rotating case. The present invention relates to a seedling planting mechanism in which a gear type relative rotating means for relatively rotatingly driving the planting claw support and the rotating case is interposed so as to draw a substantially elliptical locus.

【0002】[0002]

【従来の技術】上記苗植付機構において、従来では、例
えば特公昭49‐17806号公報に示される構成のも
のがあった。つまり、回転ケースとしての爪伝動ケース
の内部に、その回転軸芯と同一軸芯上に設けられた固定
ギア(太陽ギア)に噛み合うアイドルギア(中間ギア)
及びこのアイドルギアに噛み合うファイナルギア(遊星
ギア)の夫々が軸支される状態で設けられ、ファイナル
ギアの側面に長溝が形成されると共に、前記支持軸とし
ての爪軸にクランク及びクランクピンが設けられ、ファ
イナルギアの回転軸芯と爪軸の軸芯とを偏芯させ、クラ
ンクピンと長溝との係合によって爪軸を回動させて、植
付爪支持体を爪伝動ケースの一公転中に上下運動を実行
する(側面視で略楕円軌跡を描く)ように相対回動させ
る偏芯クランク式の回動伝達機構を備える構成となって
いた。
2. Description of the Related Art In the above-mentioned seedling planting mechanism, conventionally, there has been a structure shown in, for example, Japanese Patent Publication No. Sho 49-17806. That is, an idle gear (intermediate gear) that meshes with a fixed gear (sun gear) provided on the same axis as the rotation axis inside the pawl transmission case as the rotation case.
And final gears (planetary gears) that mesh with the idle gears are axially supported, long grooves are formed on the side surfaces of the final gears, and cranks and crank pins are provided on the pawl shafts as the support shafts. Then, the rotary shaft center of the final gear and the shaft center of the claw shaft are eccentric, and the claw shaft is rotated by the engagement of the crank pin and the long groove to move the planted claw support during one revolution of the claw transmission case. It is configured to include an eccentric crank type rotation transmission mechanism that relatively rotates so as to execute vertical movement (draw a substantially elliptical locus in a side view).

【0003】[0003]

【発明が解決しようとする課題】上記従来構造において
は、植付爪支持体を支持する支持軸(爪軸)が、回転ケ
ース(爪伝動ケース)に対して片持ち状態で支承される
構成となり、次のような不利な面があった。
In the above conventional structure, the support shaft (claw shaft) for supporting the planting claw support is supported in a cantilever state with respect to the rotating case (claw transmission case). , Had the following disadvantages.

【0004】苗植付爪は、上述したような上下運動を行
いながら苗のせ台に載置される苗の一部を切り出して圃
場に植付けるのであるが、植付け用の苗は、マット状に
根が強く絡み合った状態となっており、このような苗の
一部を切り出す際に、苗植付爪は強い反動衝撃を受ける
ことがある。
The seedling planting claw cuts out a part of the seedling placed on the seedling stand while performing the vertical movement as described above and plantes it in the field. The roots are strongly intertwined with each other, and when cutting out a part of such seedling, the seedling-planting nail may receive a strong recoil impact.

【0005】ところが、このような強い力が加わった場
合であっても、植付爪支持体を支持する支持軸が片持ち
状態で支承される構成であるから、この部分での支持軸
の支持強度が充分でなく、上述したような強い力によっ
て支持軸が傾斜してしまったり、ガタツキが発生する等
のおそれが大となる不利があった。その結果、このよう
な植付爪支持体のガタツキに起因して、苗のせ台の苗取
り出し口の端縁に苗植付爪が接当して損傷する等の不都
合が発生するおそれがある。
However, even when such a strong force is applied, the support shaft for supporting the planting claw support is supported in a cantilevered state, so that the support shaft is supported at this portion. The strength is not sufficient, and there is a disadvantage that the support shaft may be tilted due to the above-mentioned strong force, and rattling may occur. As a result, due to such rattling of the planting nail support, the seedling planting nail may come into contact with the edge of the seedling taking-out port of the seedling stand and be damaged.

【0006】又、上記従来構造においては、前記支持軸
だけでなく、上述したような相対回動機構を構成するた
めにファイナルギア(遊星ギア)も同様に、回転ケース
(爪伝動ケース)に対して片持ち状態で支承される構成
となるために、苗植付爪に強い力が加わった場合におい
て、このギアの支持強度が充分でなく、ギア支軸が傾斜
してしまう等の不具合が発生することも考えられ、この
ような点で改善の余地があった。
Further, in the above-mentioned conventional structure, not only the support shaft but also the final gear (planetary gear) for constructing the relative rotation mechanism as described above similarly to the rotary case (pawl transmission case). Since the structure is such that it is supported in a cantilevered state, when a strong force is applied to the seedling planting claw, the supporting strength of this gear is not sufficient and problems such as tilting of the gear support shaft occur. There is room for improvement in this respect.

【0007】尚、上述したような欠点を解消する構成と
して、前記相対回動手段におけるギアを非円形ギアで構
成して、上述したような支持軸の相対回動を実現させる
構成が考えられ実用化されているが、このような非円形
ギアは、切削加工等の機械加工が困難であり、焼結等に
より作製されるが、このような製作加工上の理由やその
形状等に起因して、真円ギアに比較して、加工コストが
高くつくとともにギア噛み合い時のガタつき(バックラ
ッシュ)が大きくなる不利がある。その結果、苗取り出
し作動時における植付爪支持体のガタつきが大になる等
の不利がある。
As a structure for solving the above-mentioned drawbacks, a structure in which the gear in the relative rotating means is constituted by a non-circular gear to realize the relative rotation of the supporting shaft as described above is conceivable. However, such non-circular gears are difficult to machine, such as cutting, and are produced by sintering, etc. In comparison with the perfect circle gear, there is a disadvantage that the machining cost is high and the rattling (backlash) at the time of gear engagement becomes large. As a result, there is a disadvantage that the backlash of the planting nail support becomes large during the seedling take-out operation.

【0008】本発明は、かかる点に着目してなされたも
のであり、その目的は、合理的な構成によって、植付爪
支持体を精度よく支持できると共に、相対回動させるた
めの複数のギア列を精度よく支持させることで、苗取り
出し作動を円滑に行わせることが可能となる苗植付機構
を提供する点にある。
The present invention has been made paying attention to such a point, and an object thereof is to enable a plurality of gears for relatively rotating the planting claw support with high accuracy by a rational structure. The point is to provide a seedling planting mechanism that enables the seedling removal operation to be performed smoothly by accurately supporting the rows.

【0009】[0009]

【課題を解決するための手段】第1発明の特徴構成は、
固定部材に対して第1軸芯周りで回転自在に支持された
回転ケースに、前記第1軸芯と平行な第2軸芯周りで相
対回動自在に、苗植付爪が取付けられた植付爪支持体を
軸支し、前記植付爪支持体を一体的に回動する状態で軸
支する支持軸と、前記固定部材との間に、前記回転ケー
スの回転に伴って、前記苗植付爪の先端部が略楕円軌跡
を描くように、前記植付爪支持体と前記回転ケースとを
相対回動駆動させるギア式の相対回動手段を介装してあ
る苗植付機構において、前記相対回動手段は、前記固定
部材に位置固定状態の太陽ギアと、前記支持軸に固定さ
れた遊星ギアとの間の中間伝動部に、夫々の回転軸芯が
偏芯した第1中間ギアと第2中間ギアとを不等速状態で
回動させる偏芯クランク式の回動伝達機構を備えて構成
し、前記回動伝達機構は、前記各中間ギアの夫々に一体
的に設けられる伝動部を備えて構成し、且つ、前記第1
中間ギア及び第2中間ギアを、遊端側が互いに対向する
状態で、夫々の回転支軸により前記回転ケースに対して
片持ち状に軸支すると共に、互いに対向する端面同士を
接当させる状態で配置してある点にある。
The features of the first invention are as follows:
A planting case in which a seedling planting claw is attached to a rotating case rotatably supported by a fixed member around a first axis and rotatable relative to a second axis parallel to the first axis. The seedlings are supported between the fixing member and a support shaft that supports the attached claw support and that supports the planted claw support in a state of integrally rotating with the rotation case. A seedling planting mechanism in which gear-type relative rotation means for relatively rotating the planting claw support and the rotating case are interposed so that the tip of the planting claw draws a substantially elliptical locus. The relative rotation means includes a first intermediate portion in which respective rotation axis cores are eccentric to an intermediate transmission portion between a sun gear whose position is fixed to the fixing member and a planetary gear fixed to the support shaft. An eccentric crank type rotation transmission mechanism for rotating the gear and the second intermediate gear in a non-constant speed state is provided. Structure is configured by comprising a transmission section provided integrally with the respectively each intermediate gear, and the first
In a state in which the intermediate gear and the second intermediate gear are cantilevered with respect to the rotary case by their respective rotation support shafts with their free end sides facing each other, and the end surfaces facing each other are brought into contact with each other. The point is that they are arranged.

【0010】第2発明の特徴構成は、第1発明の実施に
好適な構成を特定するものであって、前記回動伝達機構
を構成する前記各伝動部の夫々を、前記第1中間ギア又
は前記第2中間ギアのいずれか一方に、その回転軸芯か
ら偏芯した箇所に一体的に設けられた係合突部と、前記
第1中間ギア又は前記第2中間ギアのうちの他方に一体
的に設けられ、且つ、前記係合突部が係合すると共に、
該係合突部が径方向に位置ずれすることを許容しながら
回転力を伝える係合凹部とで構成し、前記係合凹部は、
その回転中心よりも前記各中間ギアの偏芯量より大きい
距離だけ、前記係合突部の回転中心に対する偏芯方向と
反対方向に向けて延びる状態で形成してある点にある。
A characteristic configuration of the second invention specifies a configuration suitable for carrying out the first invention, in which each of the transmission parts constituting the rotation transmission mechanism is connected to the first intermediate gear or One of the second intermediate gears is provided with an engaging protrusion integrally provided at a location eccentric from the axis of rotation of the second intermediate gear, and is integrally provided with the other of the first intermediate gear or the second intermediate gear. And the engaging protrusion engages,
The engaging projection is configured with an engaging recess that transmits rotational force while allowing the displacement in the radial direction, and the engaging recess is
The point is that it is formed in a state in which it extends in a direction opposite to the eccentric direction with respect to the rotation center of the engagement protrusion, by a distance larger than the rotation center of the intermediate gear.

【0011】[0011]

【作用】第1発明の特徴構成によれば、回転ケースの回
転に伴って、太陽ギアに噛み合い連係される状態で、第
1中間ギア又は第2中間ギアのいずれか一方が公転して
回転ケースに対して相対的に回動する。そして、回動す
るギアに一体的に設けられた伝動部と、回転軸芯が偏芯
した状態で配置される他方側のギアに一体的に設けられ
た伝動部との間で、不等速状態で回動力が伝えられ、回
転ケースに対して相対的に回動することになる。
According to the characteristic construction of the first aspect of the present invention, either the first intermediate gear or the second intermediate gear revolves in a state of being meshed with and linked to the sun gear as the rotating case rotates. Rotate relative to. Then, between the transmission portion integrally provided on the rotating gear and the transmission portion integrally provided on the gear on the other side, which is arranged with the rotation axis eccentric, the unequal speed is applied. In this state, the turning force is transmitted, and the rotating case rotates relative to the rotating case.

【0012】このとき、第1中間ギアと、第2中間ギア
とは回転軸芯が偏芯しており、しかも、偏芯クランク式
の回動伝達機構により回動が伝達されるから、回動力が
伝えられる側の中間ギアに噛み合い連係される遊星ギア
が、回転ケースの1回転に対して相対回転速度が周期的
に変化することになる。その結果、非円形ギア等の特殊
なギアを用いることなく、遊星ギアが設けられた支持軸
が、回転ケースに対して遅れ状態で公転する状態と進み
状態で公転する状態とが交互に現出して、苗植付爪の先
端部が側面視で略楕円軌跡を描くように、植付爪支持体
と回転ケースとが相対回動駆動されることになる。
At this time, the rotational axes of the first intermediate gear and the second intermediate gear are eccentric, and the rotation is transmitted by the eccentric crank type rotation transmission mechanism. The relative rotation speed of the planetary gear meshed with and linked to the intermediate gear on the transmission side of the rotation case changes periodically with respect to one rotation of the rotating case. As a result, without using special gears such as non-circular gears, the support shaft provided with the planetary gears alternates between a state in which it revolves in a delayed state and a state in which it revolves in a advanced state with respect to the rotating case. Then, the planting claw support and the rotating case are driven to rotate relative to each other such that the tip of the planting claw draws a substantially elliptical locus in a side view.

【0013】そして、前記遊星ギアが取付けられ、植付
爪支持体を支持する支持軸は、ギア連係によって回動力
が伝えられることになるので、両持ち支持させることが
可能となる。
The supporting shaft, to which the planetary gear is attached and which supports the planting claw support, transmits the turning force by the gear linkage, and thus can be supported by both ends.

【0014】更に、上述したような偏芯クランク式の回
動伝達機構を構成する各伝動部が、夫々に一体的に設け
られる、第1中間ギア及び第2中間ギアは、偏芯した状
態で対向配置され、夫々、回転支軸により片持ち状態で
回転ケースに軸支されることになるが、互いに対向する
端面同士を接当させる状態で配置することによって、植
付け作動中に苗植付爪に対して大きい衝撃反力が発生し
た場合であっても、各中間ギアが互いに受け止め支持さ
れ、ギアの傾斜等の不具合を未然に防止できる。
Further, the first intermediate gear and the second intermediate gear, which are integrally provided with the respective transmission parts constituting the eccentric crank type rotation transmission mechanism as described above, are in an eccentric state. They are arranged facing each other and are each supported by the rotating case in a cantilevered state on the rotating case, but by arranging them so that the end faces facing each other are brought into contact with each other, the nails for planting seedlings during the planting operation. Even when a large impact reaction force is generated, the intermediate gears are received and supported by each other, and problems such as gear inclination can be prevented.

【0015】第2発明の特徴構成によれば、第1発明の
特徴構成による作用に加えて次の作用がある。前記各中
間ギアのいずれか一方に一体的に設けられた係合突部
が、他方に一体的に設けられた係合凹部に係合した状態
で、係合突部が径方向に位置ずれすることを許容しなが
ら回転力を伝える構成とすることで、偏芯した第1中間
ギアと第2中間ギアとの間での伝達が有効に行える。そ
して、対向する端面を備えることになる係合凹部が、そ
の回転中心よりも前記偏芯量より大きい距離だけ、係合
突部の回転中心に対する偏芯方向と反対方向に向けて延
びる状態で形成されることにより、係合凹部の端面が相
手側ギア端面に対して接当する領域が、半径に相当する
距離よりも大になるので、前記衝撃反力に対して、ギア
の正逆方向夫々の傾斜を有効に受け止め支持できること
になる。
According to the characteristic construction of the second invention, the following operation is provided in addition to the operation of the characteristic construction of the first invention. The engagement protrusion is displaced in the radial direction in a state where the engagement protrusion integrally formed on one of the intermediate gears is engaged with the engagement recess integrally formed on the other intermediate gear. By adopting a configuration in which the rotational force is transmitted while allowing this, transmission can be effectively performed between the eccentric first intermediate gear and the second intermediate gear. Then, the engagement concave portion having the facing end faces is formed in a state of extending in the direction opposite to the eccentric direction with respect to the rotation center of the engagement protrusion by a distance larger than the rotation center of the engagement concave portion. By doing so, the region where the end face of the engaging recess contacts the end face of the mating gear becomes larger than the distance corresponding to the radius, so that in the forward and reverse direction of the gear, the impact reaction force is increased in each of the forward and reverse directions. The inclination of can be effectively received and supported.

【0016】[0016]

【発明の効果】第1発明の特徴構成によれば、切削加工
等の機械加工により安価に作製可能な真円ギアを用いる
ことにより、寸法精度が高く、バックラッシュに起因し
た回転方向に沿うガタツキ等の少ない円滑な作動を実行
できるものでありながら、植付爪支持体を支持する支持
軸を、回転ケースに対して両持ち状態で強固に支持させ
ることで、回転方向と交差する方向のガタツキも少ない
ものにできる。
According to the feature of the first aspect of the invention, by using a perfect circle gear which can be manufactured at low cost by machining such as cutting, dimensional accuracy is high and rattling along the rotational direction due to backlash occurs. Although it is possible to perform smooth operation with less problems, by firmly supporting the support shaft that supports the planting claw support in a two-sided holding state with respect to the rotating case, there is rattling in the direction intersecting the rotating direction. Can be less.

【0017】更に、偏芯クランク式の回動伝達機構を設
けることで、片持ち状に支持することになる中間ギアの
支持強度を大きくさせることができて、ギアの傾斜等に
起因した動作不良を未然に回避できるものとなる。
Further, by providing the eccentric crank type rotation transmission mechanism, it is possible to increase the supporting strength of the intermediate gear that is supported in a cantilevered manner, and malfunction due to the inclination of the gear or the like. Can be avoided in advance.

【0018】その結果、全体として、ガタツキの少ない
円滑な苗取り出し作動が行えるものとなった。
As a result, as a whole, smooth seedling removal operation with less rattling can be performed.

【0019】第2発明の特徴構成によれば、第1発明の
特徴構成による効果に加えて次の効果がある。苗植付爪
に対する大きな衝撃反力に起因して、前記各中間ギアが
傾斜しようとするのを、正逆両方向で有効に防止でき
て、支持強度を充分大きなものにできる。
According to the characterizing structure of the second invention, the following effect is obtained in addition to the effect of the characterizing structure of the first invention. It is possible to effectively prevent the intermediate gears from inclining in both forward and reverse directions due to a large impact reaction force with respect to the seedling planting claws, and it is possible to sufficiently increase the supporting strength.

【0020】[0020]

【実施例】以下、実施例を図面に基いて説明する。図1
に走行機体に備えられた苗植付装置を示している。この
苗植付装置は、角パイプ状のメインフレーム1を機体横
幅方向に沿って配置し、このメインフレーム1の横幅方
向ほぼ中央部に機体側からの動力が伝えられるフィード
ケース2を取付けると共に、横幅方向に適宜間隔をあけ
て複数の植付伝動ケース3(固定部材の一例)を後方に
向けて延出する状態で取付けてあり、これらによって、
フレーム体が構成されている。そして、機体横幅方向に
一定ストロークで往復移動する苗のせ台4をフレーム体
に支持させ、この苗のせ台4上に載置されたマット苗の
一部を切り出して、圃場に植付ける複数の苗植付機構5
を、前記各植付伝動ケース3の後部の左右両側に夫々配
設してある。
Embodiments will be described below with reference to the drawings. FIG.
Fig. 2 shows a seedling planting device equipped on the traveling body. In this seedling planting device, a square pipe-shaped main frame 1 is arranged along the lateral direction of the machine body, and a feed case 2 to which power from the machine body is transmitted is attached to a substantially central portion of the main frame 1 in the lateral direction. A plurality of planted transmission cases 3 (an example of a fixing member) are attached in a state that they extend rearward at appropriate intervals in the lateral width direction.
A frame body is configured. A plurality of seedlings to be planted in the field are prepared by supporting a seedling stand 4 that reciprocates in the lateral direction of the machine with a constant stroke on a frame body, cutting out a part of the mat seedlings placed on the seedling stand 4. Planting mechanism 5
Are disposed on the left and right sides of the rear portion of each of the planted transmission cases 3, respectively.

【0021】次に、前記各苗植付機構5の構成について
説明する。図2に示すように、フィードケース2から伝
動チェーン(図示せず)を介して回転動力が伝えられる
駆動軸8が、植付伝動ケース3の後部において、横方向
外方に突出する状態で回動自在にベアリング9にて支持
され、この駆動軸8の外方突出部に、一体的に回動する
状態で回転ケース10を取付けてある。つまり、駆動軸
8の突出側端部に外周部の一部に切欠kを形成してあ
り、回転ケース10の軸承部10aに、駆動軸8軸芯と
直交する方向にテーパピン11が前記切欠kに圧接する
状態で打ち込み圧入され、駆動軸8と回転ケース10と
が一体回転すると共に、回転ケース10の外方への抜け
外れを阻止するようにしている。
Next, the structure of each seedling planting mechanism 5 will be described. As shown in FIG. 2, the drive shaft 8 to which the rotational power is transmitted from the feed case 2 via a transmission chain (not shown) is rotated at the rear portion of the planted transmission case 3 in a state of protruding laterally outward. A rotary case 10 is movably supported by a bearing 9, and a rotary case 10 is attached to an outwardly projecting portion of the drive shaft 8 so as to integrally rotate. That is, a notch k is formed in a part of the outer peripheral portion of the end of the drive shaft 8 on the projecting side, and the tapered pin 11 is formed in the shaft bearing 10a of the rotating case 10 in the direction orthogonal to the axis of the drive shaft 8. The drive shaft 8 and the rotating case 10 are integrally rotated while being pressed into contact with the rotating case 10, and the rotating case 10 is prevented from coming off and coming out.

【0022】この回転ケース10には、駆動軸8の軸芯
X1(第1軸芯に相当)に対して180度の回転位相差
を有する、2つの平行な軸芯X2,X3(第2軸芯に相
当)周りで相対回動自在に、夫々、苗植付爪12が取付
けられた一対の植付爪支持体としての植付爪支持ケース
13を各別に支持軸14によって軸支してある。
The rotating case 10 has two parallel shaft cores X2 and X3 (second shaft) having a rotational phase difference of 180 degrees with respect to the shaft core X1 (corresponding to the first shaft core) of the drive shaft 8. A pair of planting claw support cases 13 as a pair of planting claw support bodies to which the seedling planting claws 12 are attached are rotatably supported by support shafts 14 so as to be relatively rotatable around (corresponding to the core). .

【0023】前記各植付爪支持ケース13には、苗植付
爪12が取付け支持されると共に、苗植付け作動に伴っ
て苗植付爪12により保持されている苗を圃場に押し出
す苗押し出し具15が設けられている。植付爪支持ケー
ス13内に、支持軸14の軸芯の延長上に位置するカム
軸16が相対回動自在にベアリング支持され、このカム
軸16には、苗押し出し具15を押し出し作動させるカ
ム17が形成されている。カム軸16は、他方側のカム
軸16と共に、それらにわたって架設された連結杆18
にボルト連結され、回転ケース10の回転に伴って一体
的に回動するようになっている。図4に示すように、苗
押し出し具15にはリンク19を介して天秤アーム20
が枢支され、この天秤アーム20の反対側端部には前記
カム17に作用するカムフォロア21を備えてあり、し
かも、カムフォロア21がカム17に押圧する方向に天
秤アーム20を揺動付勢する戻しバネ22を備えてあ
る。後述するように、植付爪支持ケース13は回転ケー
ス10に対して相対的に回動することになるので、植付
爪支持ケース13とカム軸16とは所定回動範囲で相対
回動することになる。従って、このような相対回動に伴
って、カム軸16に設けられたカム17の作用によっ
て、戻しバネ22の戻し付勢力に抗して苗押し出し具1
5が植付け作動に伴って相対的に苗押し出し方向に移動
するように構成されている。
A seedling pushing claw 12 is attached to and supported by each of the planting claw support cases 13, and a seedling pushing tool for pushing the seedlings held by the seedling planting claw 12 to the field along with the seedling planting operation. 15 are provided. A cam shaft 16 located on an extension of the axis of the support shaft 14 is supported in the planting claw support case 13 so as to be rotatable relative to the cam shaft 16. A cam that pushes out the seedling pushing device 15 is operated on the cam shaft 16. 17 are formed. The cam shaft 16 and the cam shaft 16 on the other side together with a connecting rod 18 that is laid across them.
It is bolted to and is rotated integrally with the rotation of the rotating case 10. As shown in FIG. 4, the seedling pushing device 15 has a balance arm 20 via a link 19.
The balance arm 20 is pivotally supported, and a cam follower 21 acting on the cam 17 is provided at an end portion on the opposite side of the balance arm 20. Further, the balance follower arm 20 swings and biases in the direction in which the cam follower 21 presses the cam 17. A return spring 22 is provided. As will be described later, since the planting claw support case 13 rotates relative to the rotating case 10, the planting claw support case 13 and the cam shaft 16 relatively rotate within a predetermined rotation range. It will be. Therefore, with such relative rotation, the cam 17 provided on the cam shaft 16 acts against the return biasing force of the return spring 22 to push the seedling pushing device 1 out.
5 is configured to move relatively in the seedling extrusion direction with the planting operation.

【0024】図3に示すように、回転ケース10の内部
には、回転ケース10の回転に伴って、各苗植付爪12
の先端部が側面視で略楕円軌跡を描くように、各植付爪
支持ケース13と回転ケース10とを相対回動駆動させ
るギア式の相対回動手段Sが備えられている。
As shown in FIG. 3, inside the rotating case 10, as the rotating case 10 rotates, each of the seedling-planting claws 12 is rotated.
Gear type relative rotating means S for relatively rotating and driving each planting claw support case 13 and the rotating case 10 is provided so that the tip end portion of the device draws a substantially elliptical locus in a side view.

【0025】詳述すると、回転ケース10の内部には、
植付伝動ケース3における駆動軸8の軸承用ボス部3a
に対して噛み合い部Aを介して駆動軸8の軸芯方向に噛
み合うことによって回転が阻止された状態で、太陽ギア
23が駆動軸8に遊転外嵌されており、又、植付爪支持
ケース13を支持する支持軸14が、回転ケース10の
内部において左右両側のベアリング24,25により両
持ち支持状態で、回転自在に支持されている。そして、
この支持軸14が、植付伝動ケース3と反対側外方に向
けて回転ケース10から外方突出させてあり、図5にも
示すように、この支持軸14の外方突出部に一体的に形
成されたフランジ部26に、植付爪支持ケース13に形
成されたフランジ部27をボルト28で締付け連結する
と共に、支持軸14のフランジ部26よりも外方側軸部
を植付爪支持ケース13の挿通孔29に嵌合装着させ
て、植付爪支持ケース13を支持するように構成してあ
る。
More specifically, inside the rotating case 10,
Bearing boss 3a of drive shaft 8 in planted transmission case 3
The sun gear 23 is loosely fitted onto the drive shaft 8 in a state in which the rotation is blocked by meshing in the axial direction of the drive shaft 8 via the meshing portion A, and the planted pawl support A support shaft 14 that supports the case 13 is rotatably supported inside the rotating case 10 by bearings 24 and 25 on both left and right sides in a double-supported state. And
The support shaft 14 is projected outward from the rotating case 10 toward the outside opposite to the planted transmission case 3, and as shown in FIG. 5, it is integrated with the outward projection of the support shaft 14. The flange portion 27 formed on the planting claw support case 13 is tightened and connected to the flange portion 26 formed on the outer surface of the support shaft 14 by a bolt 28, and the shaft portion on the outer side of the flange portion 26 of the support shaft 14 is supported by the planting claw support. It is configured to be fitted and mounted in the insertion hole 29 of the case 13 to support the planting claw support case 13.

【0026】回転ケース10内において、支持軸14に
一体回転自在に遊星ギア30がスプライン外嵌され、こ
の遊星ギア30と、前記太陽ギア23との間の中間伝動
部に、夫々の回転軸芯が偏芯した第1中間ギア31と第
2中間ギア32とを不等速状態で回動させる偏芯クラン
ク式の回動伝達機構Dを備えてある。尚、この回動伝達
機構Dは、他方の植付爪伝動ケースに対しても同様の構
成のものが設けられているが、以下、片方のものを代表
して説明する。
In the rotating case 10, a planetary gear 30 is spline-fitted to the support shaft 14 so as to be integrally rotatable, and an intermediate transmission portion between the planetary gear 30 and the sun gear 23 is provided with respective rotating shaft cores. An eccentric crank type rotation transmission mechanism D for rotating the eccentric first intermediate gear 31 and the second intermediate gear 32 in a non-constant speed state. The rotation transmitting mechanism D has the same structure for the other planted claw transmission case, but one of the cases will be described below as a representative.

【0027】第1中間ギア31は、太陽ギア23に噛み
合うと共に、その太陽ギア23と同一歯数になるように
形成され、第2中間ギア32は前記遊星ギア30に噛み
合うと共に、その遊星ギア30と同一歯数になるように
形成され、第2中間ギア32の回転軸芯X5が第1中間
ギア31の回転軸芯X4よりも太陽ギア23側に偏芯し
た状態で、夫々の回転支軸33,34が回転ケース10
にベアリング支持されている。各回転支軸33,34
は、夫々の中間ギア31,32に対して互いに逆向きに
横一側方に突出する状態で設けられ、各中間ギア31,
32は回転ケース10に対して片持ち状に軸支されてい
る。
The first intermediate gear 31 is formed so as to mesh with the sun gear 23 and have the same number of teeth as the sun gear 23, and the second intermediate gear 32 meshes with the planet gear 30 and its planet gear 30. And the rotation axis X5 of the second intermediate gear 32 is eccentric to the sun gear 23 side with respect to the rotation axis X4 of the first intermediate gear 31. 33 and 34 are rotating cases 10
Bearings are supported by. Each rotation support shaft 33, 34
Are provided so as to project laterally one side in the opposite directions with respect to the respective intermediate gears 31, 32.
32 is cantilevered with respect to the rotating case 10.

【0028】そして、図6に示すように、前記第2中間
ギア32における回転支軸34と反対側、つまり、第1
中間ギア31に対向する側であってその回転軸芯から偏
芯した箇所に、一体的に、伝動部としてのクランクロー
ラ35(係合突部の一例)が設けられている。このクラ
ンクローラ35は、耐磨耗性の材質からなり、第2中間
ギア32の側面に一体的に突設させたクランクピン36
に回動自在に外嵌させてある。又、第1中間ギア31に
おける回転支軸33と反対側、つまり、第2中間ギア3
2に対向する側には、前記クランクローラ35が係合す
ると共に、クランクローラ35が径方向に位置ずれする
ことを許容しながら回転力を伝える伝動部としての溝部
38(係合凹部の一例)を形成する一対の突条39,3
9を形成してある。
Then, as shown in FIG. 6, the side of the second intermediate gear 32 opposite to the rotation support shaft 34, that is, the first intermediate gear 32,
A crank roller 35 (an example of an engaging protrusion) as a transmission unit is integrally provided on a side facing the intermediate gear 31 and eccentric from a rotation axis thereof. The crank roller 35 is made of a wear-resistant material and has a crank pin 36 integrally formed on the side surface of the second intermediate gear 32.
It is rotatably fitted on the outside. In addition, the side opposite to the rotation support shaft 33 in the first intermediate gear 31, that is, the second intermediate gear 3
A groove portion 38 (an example of an engaging recess) serving as a transmission portion that transmits the rotational force while allowing the crank roller 35 to be displaced in the radial direction on the side facing 2 Pair of ridges 39, 3 forming a
9 is formed.

【0029】前記各中間ギア31,32は、回転ケース
10内に組付けられた状態において、互いに対向する端
面同士、即ち、前記各突条39,39の対向側端面と、
第2中間ギア32の対向側の側面とを接当させる状態で
配置してある。又、前記各突条39,39は、その回転
中心、即ち、第1中間ギア31の回転軸芯よりもギア偏
芯量Lより大きい距離だけ、第2中間ギア32の回転軸
芯に対する偏芯方向と反対方向に向けて、ギア歯底近く
まで延びる状態で形成してある。
The intermediate gears 31 and 32, when assembled in the rotating case 10, have their end faces facing each other, that is, the opposite end faces of the ridges 39, 39, respectively.
The second intermediate gear 32 is arranged in contact with the opposite side surface of the second intermediate gear 32. The ridges 39, 39 are eccentric with respect to the center of rotation of the second intermediate gear 32 by a distance larger than the center of rotation of the first intermediate gear 31, that is, the gear eccentric amount L than the center of rotation of the first intermediate gear 31. It is formed so as to extend in the direction opposite to the direction to the vicinity of the gear root.

【0030】このようにして、突条39,39の対向側
端面と、第2中間ギア32の対向側の側面とを接当距離
を、各ギアの半径に相当する距離を越えるように、長く
させることで、回転ケース10に対して片持ち状に軸支
される構成に起因して発生する苗植付け作動に伴う駆動
反力によって、ギアが正逆いずれの方向に対しても傾斜
することを、互いに接当支持することで未然に防止でき
る構成としている。
In this way, the abutting distance between the facing end surfaces of the ridges 39, 39 and the facing side surface of the second intermediate gear 32 is increased so that the contact distance exceeds the distance corresponding to the radius of each gear. By so doing, it is possible to prevent the gear from inclining in either forward or reverse directions due to the drive reaction force that accompanies the seedling planting operation that occurs due to the cantilevered axial support of the rotating case 10. It is configured so that they can be prevented by contacting and supporting each other.

【0031】このように構成することで、回転ケース1
0の回転に伴って、第1中間ギア31が太陽ギア23に
対する噛み合い状態を維持しながら、駆動軸8の軸芯周
りで1回転公転すると、回転ケース10に対して相対的
に1回転自転することになる。ここで、この第1中間ギ
ア31に対して遊星ギア30が噛み合う状態であれば、
遊星ギア30が第1中間ギア31に対して逆向きに1回
転自転するから、相対的に自転しない状態と同じにな
る。しかし、上述したような相対回動手段Sが設けられ
ることで、第1中間ギア31に設けられた一対の突条3
9,39によって回動操作されるクランクローラ35が
設けられる第2中間ギア32は、回転軸芯が偏芯してい
ることによって、回転ケース10の1回転に対して1回
の変動周期で相対回動周速度が変化することになる。
With this configuration, the rotating case 1
With the rotation of 0, the first intermediate gear 31 revolves around the axis of the drive shaft 8 for one rotation while maintaining the meshing state with the sun gear 23, and rotates about the rotation case 10 for one rotation. It will be. Here, if the planetary gear 30 meshes with the first intermediate gear 31,
Since the planetary gear 30 rotates one revolution in the opposite direction with respect to the first intermediate gear 31, it becomes the same as the state in which it does not relatively rotate. However, by providing the relative rotation means S as described above, the pair of protrusions 3 provided on the first intermediate gear 31.
The second intermediate gear 32, which is provided with the crank roller 35 that is rotated by 9, 39, is relatively eccentric to the second intermediate gear 32 with respect to one rotation of the rotating case 10 once per cycle. The rotation peripheral speed will change.

【0032】その結果、回転ケース10の回転に応じて
遊星ギア30の自転角度が図7に示すように、周期的に
変動することになり、苗植付爪12の先端部の軌跡が図
1に示すように、側面視で略楕円軌跡を描きながら、苗
植付爪12が相対的に上下に首振り運動が実行され、適
切な苗植付け作動が実行される。しかも、植付爪支持ケ
ース13を支持する支持軸14は、回転ケース10内に
おいて左右両側で両持ち状態でベアリング支持され、強
固に支持することができる。
As a result, the rotation angle of the planetary gear 30 periodically changes in accordance with the rotation of the rotating case 10, as shown in FIG. 7, and the locus of the tip of the seedling planting claw 12 is shown in FIG. As shown in FIG. 6, the seedling planting claw 12 relatively swings up and down while drawing a substantially elliptical locus in a side view, and an appropriate seedling planting operation is performed. Moreover, the support shaft 14 that supports the planting claw support case 13 is supported by bearings on both the left and right sides in the rotating case 10 in a two-sided state, and can be firmly supported.

【0033】前記苗植付爪12が、苗のせ台4上の苗に
突入する際、回転ケース10の回転方向と逆方向に向け
て強い衝撃反力を受けるが、この衝撃反力を受ける方向
は、遊星ギア30の駆動回動方向と同じであることか
ら、ギア噛み合い部のバックラッシュに相当するガタツ
キ分だけ、苗植付爪12の移動方向(回転ケース10の
回転方向)と反対方向に移動するおそれがあり、その結
果、円滑な苗取り出しが行えないおそれがある。そこ
で、このようなガタツキを少なくさせるためのガタ取り
機構が設けられている。
When the seedling-planting claw 12 plunges into the seedling on the seedling placing table 4, it receives a strong impact reaction force in the direction opposite to the rotation direction of the rotating case 10. The direction in which this impact reaction force is received. Is the same as the driving rotation direction of the planetary gear 30, so that the rattling corresponding to the backlash of the gear meshing portion is in the opposite direction to the moving direction of the seedling planting claw 12 (rotating direction of the rotating case 10). There is a risk of movement, and as a result, smooth seedling removal may not be possible. Therefore, a rattling removal mechanism is provided to reduce such rattling.

【0034】つまり、図2、図8、図9に示すように、
前記第2中間ギア32の横側部位に、ギア歯先よりも径
方向外方に突出する2個の操作部40aが形成された操
作部材40を一体回動自在に設けると共に、前記支持軸
14における前記操作部材40に対応する箇所に、先端
部がギアピッチ円とほぼ一致する2個の接当部41aが
形成された先行回動部材41を、支持軸14に遊転自在
に外嵌する状態で設けてある。前記先行回動部材41
は、遊星ギア30の側面に立設したピン42により接当
されて回動するように構成され、ギア噛み合いによる回
動に伴って接当部41aが少しだけ操作部40aよりも
先行して回動すると共に、この接当部41aに対してギ
ア歯先よりも突出した操作部40aが接当操作して、ギ
ア噛み合いによる回動よりも少しだけ先行させた状態
で、先行回動部材41を先行させて回動させるように構
成してある。
That is, as shown in FIG. 2, FIG. 8 and FIG.
An operating member 40 having two operating portions 40a projecting outward in the radial direction from the gear tooth tips is integrally rotatably provided at a lateral side portion of the second intermediate gear 32, and the support shaft 14 is also provided. A state in which a leading rotating member 41 having two abutting portions 41a whose tip ends substantially match a gear pitch circle is externally fitted onto the support shaft 14 in a position corresponding to the operating member 40 in FIG. It is provided in. The preceding rotation member 41
Is configured to rotate by being abutted by a pin 42 provided upright on the side surface of the planetary gear 30, and the abutment portion 41a rotates slightly ahead of the operating portion 40a as the gear meshes. The operating portion 40a, which is moved and protrudes from the tooth tip of the gear, abuts against the abutment portion 41a to slightly advance the rotation due to the gear meshing. It is configured to rotate in advance.

【0035】そして、先行回動部材41の側面に立設し
たピン43と、遊星ギア30の側面に立設したピン42
とにわたって先行回動部材41のボス部41bにループ
状に巻回された板バネ44を張設してあり、上述したよ
うな接当操作による先行回動に伴ってこの板バネ44の
バネ付勢力により遊星ギア30が連動して先行回動する
ように構成されている。その結果、苗取り出し作動時に
おいて、図10に示すように、操作部40aがギア部よ
りも大径に設けられる結果、わずかにギア部に先行し
て、接当部41aを回動させ、第2中間ギア32に対し
て遊星ギア30が少しだけ先行する状態で回動すること
になり、植付爪支持ケース13が予め後退した状態で苗
取り出しが実行されることになり、バックラッシュによ
るガタつきが解消された状態で、苗取り出し作用が行わ
れることになる。尚、図10中(イ)は接当開始時、
(ロ)は先行回動作動中、(ハ)は接当作用終了時を夫
々示している。尚、前記接当部41a及び操作部40a
が夫々所定ピッチをあけて一対設けられ、苗の取り出し
作動時だけでなく圃場への植付け作動時におけるガタツ
キも防止するように構成してある。
Then, the pin 43 provided upright on the side surface of the advance turning member 41 and the pin 42 provided upright on the side surface of the planetary gear 30.
A leaf spring 44 wound in a loop is stretched around the boss portion 41b of the leading pivot member 41, and the leaf spring 44 is attached to the boss portion 41b of the leading pivot member 41 in accordance with the leading rotation by the abutting operation as described above. The planetary gear 30 is interlocked with the power to rotate forward. As a result, at the time of seedling take-out operation, as shown in FIG. 10, the operating portion 40a is provided with a diameter larger than that of the gear portion, and as a result, the contact portion 41a is rotated slightly before the gear portion, 2 As the planetary gear 30 slightly rotates ahead of the intermediate gear 32, the seedlings are taken out with the planting claw support case 13 retracted in advance, which causes backlash. The seedling take-out action is performed in the state where the stickiness is eliminated. In addition, (a) in FIG.
(B) shows the advance rotation operation, and (C) shows the end time of the contact action. Incidentally, the contact portion 41a and the operation portion 40a
Are provided at a predetermined pitch, respectively, and are configured to prevent rattling not only when the seedlings are taken out but also when the seedlings are planted in the field.

【0036】〔別実施例〕 (1)上記実施例では、前記突条39,39が、クラン
クローラ35に対する係合案内範囲より、偏芯量以上に
長く延設される構成を例示したが、このような構成に代
えて、前記係合案内範囲部分のみに前記突条39,39
が形成される構成としてもよい。
[Other Embodiment] (1) In the above embodiment, the ridges 39, 39 are extended from the engagement guide range for the crank roller 35 by an amount of eccentricity or more. Instead of such a configuration, the protrusions 39, 39 are provided only in the engagement guide range portion.
May be formed.

【0037】(2)上記実施例では、第1中間ギア31
に2個の突条を立設して係合凹部が形成される場合を例
示したが、第1中間ギア31の側面に直接、溝部38を
形成させる構成としてもよい。
(2) In the above embodiment, the first intermediate gear 31
Although the case where two protrusions are erected to form the engaging recess is illustrated in the above, the groove 38 may be formed directly on the side surface of the first intermediate gear 31.

【0038】(3)上記実施例では、第1中間ギア31
に係合凹部を形成し、第2中間ギア32にクランクロー
ラ35を設ける構成を例示したが、第2中間ギア32に
係合凹部を形成し、第1中間ギア31にクランクローラ
35を設ける構成としてもよく、円形のローラに代え
て、係合凹部38にスライド移動自在に係合すると共
に、クランクピン36に回動自在に支持された矩形形状
の案内体で構成してもよい。
(3) In the above embodiment, the first intermediate gear 31
Although the engaging recess is formed in the second intermediate gear 32 and the crank roller 35 is provided in the second intermediate gear 32, the engaging recess is formed in the second intermediate gear 32 and the crank roller 35 is provided in the first intermediate gear 31. Alternatively, instead of the circular roller, a rectangular guide body that slidably engages with the engaging recess 38 and is rotatably supported by the crank pin 36 may be used.

【0039】(4)上記実施例では、回転体としての回
転ケース10に一対の植付爪支持体を取付ける場合を例
示したが、回転ケース10に植付爪支持体を1個だけ取
付ける構成としてもよい。
(4) In the above embodiment, the case where a pair of planting claw supports are attached to the rotating case 10 as a rotating body has been exemplified, but only one planting claw support is attached to the rotating case 10. Good.

【0040】尚、特許請求の範囲の項に図面との対照を
容易にするために符号を記すが、該記入により本発明は
添付図面の構成に限定されるものではない。
It should be noted that reference numerals are added to the claims for facilitating the comparison with the drawings, but the present invention is not limited to the configuration of the accompanying drawings by the entry.

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

【図1】苗植付装置の側面図[Figure 1] Side view of seedling plant

【図2】苗植付機構の縦断平面図[Fig. 2] Vertical plan view of seedling planting mechanism

【図3】回転ケースの縦断側面図FIG. 3 is a vertical side view of the rotating case.

【図4】植付爪支持ケースの縦断側面図FIG. 4 is a vertical sectional side view of a planted claw support case.

【図5】植付爪支持ケースの側面図FIG. 5 is a side view of the planted claw support case.

【図6】回動伝達機構の分解斜視図FIG. 6 is an exploded perspective view of a rotation transmission mechanism.

【図7】植付爪支持ケースの相対揺動角変化を示す図FIG. 7 is a view showing a change in relative swing angle of the planted claw support case.

【図8】ガタ取り機構の側面図FIG. 8 is a side view of the backlash removing mechanism.

【図9】ガタ取り機構の側面図FIG. 9 is a side view of the backlash removing mechanism.

【図10】ガタ取り機構の作用を示す図FIG. 10 is a view showing an operation of a backlash removing mechanism.

【符号の説明】[Explanation of symbols]

3 固定部材 10 回転ケース 13 植付爪支持体 14 支持軸 23 太陽ギア 30 遊星ギア 31 第1中間ギア 32 第2中間ギア 33,34 回転支軸 35 係合突部 38 係合凹部 D 回動伝達機構 S 相対回動手段 L 偏芯量 X1,X2,X3 軸芯 3 Fixed Member 10 Rotating Case 13 Planting Claw Support 14 Support Shaft 23 Sun Gear 30 Planetary Gear 31 First Intermediate Gear 32 Second Intermediate Gear 33, 34 Rotating Spindle 35 Engagement Projection 38 Engagement Recession D Rotation Transmission Mechanism S Relative rotation means L Eccentricity X1, X2, X3 Axial center

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 固定部材(3)に対して第1軸芯(X
1)周りで回転自在に支持された回転ケース(10)
に、 前記第1軸芯(X1)と平行な第2軸芯(X2),(X
3)周りで相対回動自在に、苗植付爪(12)が取付け
られた植付爪支持体(13)を軸支し、 前記植付爪支持体(13)を一体的に回動する状態で軸
支する支持軸(14)と、前記固定部材(3)との間
に、 前記回転ケース(10)の回転に伴って、前記苗植付爪
(12)の先端部が略楕円軌跡を描くように、前記植付
爪支持体(13)と前記回転ケース(10)とを相対回
動駆動させるギア式の相対回動手段(S)を介装してあ
る苗植付機構であって、 前記相対回動手段(S)は、 前記固定部材(3)に位置固定状態の太陽ギア(23)
と、前記支持軸(14)に固定された遊星ギア(30)
との間の中間伝動部に、 夫々の回転軸芯が偏芯した第1中間ギア(31)と第2
中間ギア(32)とを不等速状態で回動させる偏芯クラ
ンク式の回動伝達機構(D)を備えて構成し、 前記回動伝達機構(D)は、前記各中間ギア(31),
(32)の夫々に一体的に設けられる伝動部を備えて構
成し、 且つ、前記第1中間ギア(31)及び第2中間ギア(3
2)を、 遊端側が互いに対向する状態で、夫々の回転支軸(3
3),(34)により前記回転ケース(10)に対して
片持ち状に軸支すると共に、互いに対向する端面同士を
接当させる状態で配置してある苗植付機構。
1. A first shaft core (X) with respect to the fixing member (3).
1) Rotating case (10) rotatably supported around
And a second axis (X2), (X2) parallel to the first axis (X1).
3) A planting claw support (13) having a seedling planting claw (12) attached thereto is pivotally supported so as to be relatively rotatable around the planting claw support (13). Between the support shaft (14) axially supported in the state and the fixing member (3), the tip of the seedling planting claw (12) has a substantially elliptical locus as the rotation case (10) rotates. The seedling planting mechanism in which the gear type relative rotating means (S) for relatively rotating and driving the planting claw support (13) and the rotating case (10) is interposed as shown in FIG. The relative rotation means (S) is configured to fix the position of the sun gear (23) to the fixing member (3).
And a planetary gear (30) fixed to the support shaft (14)
The first intermediate gear (31) and the second intermediate gear (31) each having an eccentric rotating shaft center
An eccentric crank type rotation transmission mechanism (D) for rotating the intermediate gear (32) in a non-uniform speed state is provided, and the rotation transmission mechanism (D) is provided for each of the intermediate gears (31). ,
(32) is provided with a transmission unit integrally provided with each of the first and second intermediate gears (31) and (3).
2) with their free ends facing each other
3), a seedling planting mechanism which is axially supported by the rotating case (10) in a cantilevered manner by the (34) and is arranged in a state in which end faces facing each other are brought into contact with each other.
【請求項2】 前記回動伝達機構(D)を構成する前記
各伝動部の夫々を、 前記第1中間ギア(31)又は前記第2中間ギア(3
2)のいずれか一方に、その回転軸芯から偏芯した箇所
に一体的に設けられた係合突部(35)と、 前記第1中間ギア(31)又は前記第2中間ギア(3
2)のうちの他方に一体的に設けられ、且つ、前記係合
突部(35)が係合すると共に、該係合突部(35)が
径方向に位置ずれすることを許容しながら回転力を伝え
る係合凹部(38)とで構成し、 前記係合凹部(38)は、 その回転中心よりも前記各中間ギア(31),(32)
の偏芯量(L)より大きい距離だけ、前記係合突部(3
5)の回転中心に対する偏芯方向と反対方向に向けて延
びる状態で形成してある請求項1記載の苗植付機構。
2. The first intermediate gear (31) or the second intermediate gear (3) is provided for each of the transmission parts constituting the rotation transmission mechanism (D).
In either one of 2), an engaging protrusion (35) integrally provided at a location eccentric from the axis of rotation thereof, the first intermediate gear (31) or the second intermediate gear (3).
Rotating while being integrally provided on the other of 2), the engaging projection (35) is engaged, and the engaging projection (35) is displaced in the radial direction. And an engaging recess (38) for transmitting a force, wherein the engaging recess (38) has the intermediate gears (31), (32) more than the center of rotation thereof.
The engaging protrusion (3
The seedling planting mechanism according to claim 1, which is formed in a state of extending in a direction opposite to the eccentric direction with respect to the rotation center of 5).
JP7746495A 1995-03-31 1995-04-03 Seedling transplanting mechanism Pending JPH08266123A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7746495A JPH08266123A (en) 1995-04-03 1995-04-03 Seedling transplanting mechanism
TW85101789A TW318773B (en) 1995-03-31 1996-02-13
KR1019960004734A KR100193458B1 (en) 1995-03-31 1996-02-27 Planting device
CN96106085A CN1067840C (en) 1995-03-31 1996-03-29 Seedling-planting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7746495A JPH08266123A (en) 1995-04-03 1995-04-03 Seedling transplanting mechanism

Publications (1)

Publication Number Publication Date
JPH08266123A true JPH08266123A (en) 1996-10-15

Family

ID=13634727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7746495A Pending JPH08266123A (en) 1995-03-31 1995-04-03 Seedling transplanting mechanism

Country Status (1)

Country Link
JP (1) JPH08266123A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103782696A (en) * 2014-02-14 2014-05-14 东北农业大学 Pot seedling transplanting mechanism capable of holing in membrane and caving below membrane
CN105493718A (en) * 2016-01-08 2016-04-20 农业部南京农业机械化研究所 Seedling separating mechanism of full-automatic pot seedling transplanter
CN105746060A (en) * 2016-03-10 2016-07-13 东北农业大学 Rotary membrane-dibbling transplanting mechanism
CN109121607A (en) * 2018-09-13 2019-01-04 东北农业大学 Non-circular gear planetary gear system seedling taking assembly and plant assembly combined mechanism

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103782696A (en) * 2014-02-14 2014-05-14 东北农业大学 Pot seedling transplanting mechanism capable of holing in membrane and caving below membrane
CN103782696B (en) * 2014-02-14 2016-02-24 东北农业大学 The potted-seedling transplanting mechanism in cave is pricked under film being pricked hole, film
CN105493718A (en) * 2016-01-08 2016-04-20 农业部南京农业机械化研究所 Seedling separating mechanism of full-automatic pot seedling transplanter
CN105746060A (en) * 2016-03-10 2016-07-13 东北农业大学 Rotary membrane-dibbling transplanting mechanism
CN109121607A (en) * 2018-09-13 2019-01-04 东北农业大学 Non-circular gear planetary gear system seedling taking assembly and plant assembly combined mechanism

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