JP2013198455A - Seedling-planting mechanism of rice transplanter - Google Patents

Seedling-planting mechanism of rice transplanter Download PDF

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JP2013198455A
JP2013198455A JP2012069909A JP2012069909A JP2013198455A JP 2013198455 A JP2013198455 A JP 2013198455A JP 2012069909 A JP2012069909 A JP 2012069909A JP 2012069909 A JP2012069909 A JP 2012069909A JP 2013198455 A JP2013198455 A JP 2013198455A
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planting
seedling
support case
planting claw
case
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JP5722818B2 (en
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Kanmei Kobayashi
鑑明 小林
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Kubota Corp
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Abstract

PROBLEM TO BE SOLVED: To provide a seedling-planting mechanism of a rice transplanter, which can fill grease in a planting tine-supporting case and can maintain sealing properties of the planting tine-supporting case.SOLUTION: There is provided a seedling-planting mechanism of a rice transplanter, in which a seedling pushing tool 31 for pushing seedlings from a seedling-planting tine 8 is supported on a planting tine-supporting case 10 slidably in a state projecting outward from the inside of the planting tine-supporting case 10 for supporting the seedling-planting tine 8, and a moving operation mechanism 32 for moving the seedling pushing tool 31 to an action position or a non-action position accompanied by the seedling-planting movement operation of the planting tine-supporting case 10 is disposed in the inside of the planting tine-supporting case 10, and a grease nipple 75 for injection for injecting grease from the outside of the planting tine-supporting case 10 to the inside, and a grease nipple 76 for ejection for ejecting the grease from the inside of the planting tine-supporting case 10 to the outside are disposed, respectively.

Description

本発明は、苗植付爪から苗を押し出す苗押し出し具が、前記苗植付爪を支持する植付爪支持ケースの内部から外方に突出する状態で且つ摺動自在に前記植付爪支持ケースに支持され、前記植付爪支持ケースの苗植え用の移動操作に伴って前記苗押し出し具を作用位置と非作用位置とに移動させる移動操作機構が、前記植付爪支持ケースの内部に備えられている田植機の苗植付機構に関する。   The present invention provides a planting claw support in which a seedling pushing tool for pushing a seedling from a seedling planting claw projects outwardly from the inside of a planting claw support case that supports the seedling planting claw and is slidable A movement operation mechanism that is supported by the case and moves the seedling pusher between the action position and the non-action position in accordance with the movement operation for seedling planting of the planting claw support case is provided inside the planting claw support case. It relates to the planting mechanism of the rice transplanter provided.

従来の田植機の苗植付機構では、植付爪支持ケースに開口形成された供給口を通してケース内部に潤滑用のグリスを供給するように構成され、植付爪支持ケースの内部にグリスを充填させたのちに供給口をゴム製の蓋体によって閉塞するように構成されていた（例えば、特許文献１参照。）。   The conventional seedling planting mechanism of rice transplanters is configured to supply grease for lubrication into the case through a supply port formed in the planting claw support case, and the inside of the planting claw support case is filled with grease. Then, the supply port was closed with a rubber lid (see, for example, Patent Document 1).

特開平９−２３３９２２号公報JP-A-9-233922

上記従来構成では、作業者が、植付爪支持ケース内部にグリスを充填させる際に、植付爪支持ケースに形成された１つの開口部を通してグリスを供給するものであるから、植付爪支持ケース内部にグリスが隅々まで充分に供給されているか否かが判り難いものとなっていた。   In the above conventional configuration, when the operator fills the inside of the planting claw support case with grease, the grease is supplied through one opening formed in the planting claw support case. It was difficult to determine whether grease was sufficiently supplied to the inside of the case.

又、ゴム製の蓋体にて開口を閉塞するので、例えば経年変化によりゴムが劣化した状態で植付爪支持ケースの内部圧力が少し上昇したような場合等において、作業を実行しているときに蓋体が抜け外れて、グリスがケース外方側に漏れ出したり、ケース内部に泥土が侵入する等のおそれがあり、この点でも改善の余地があった。   Also, since the opening is closed with a rubber lid, for example, when the internal pressure of the planting claw support case is slightly increased with the rubber deteriorated due to aging, etc. The lid may come off and grease may leak out to the outside of the case, or mud may enter the case, and there is room for improvement.

本発明の目的は、植付爪支持ケース内にグリスを充填することが可能になるとともに、植付爪支持ケースの密閉性を維持することが可能な田植機の苗植付機構を提供する点にある。   An object of the present invention is to provide a seedling planting mechanism of a rice transplanter that can be filled with grease in the planting claw support case and can maintain the sealing property of the planting claw support case. It is in.

本発明に係る田植機の苗植付機構は、苗植付爪から苗を押し出す苗押し出し具が、前記苗植付爪を支持する植付爪支持ケースの内部から外方に突出する状態で且つ摺動自在に前記植付爪支持ケースに支持され、
前記植付爪支持ケースの苗植え用の移動操作に伴って前記苗押し出し具を作用位置と非作用位置とに移動させる移動操作機構が、前記植付爪支持ケースの内部に備えられているものであって、その第１特徴構成は、
前記植付爪支持ケースの外方から内部に向けてグリスを注入するための注入用のグリスニップル、及び、前記植付爪支持ケースの内部から外方に向けてグリスを排出させるための排出用のグリスニップルが夫々、前記植付爪支持ケースに備えられている点にある。 The seedling planting mechanism of the rice transplanter according to the present invention is such that the seedling pushing tool for pushing out the seedling from the seedling planting nail protrudes outward from the inside of the planting claw support case that supports the seedling planting nail and Supported by the planting claw support case slidably,
A moving operation mechanism for moving the seedling pusher between the operating position and the non-operating position in accordance with the moving operation for seedling planting of the planting claw support case is provided inside the planting claw support case. The first characteristic configuration is
An injecting grease nipple for injecting grease from the outside to the inside of the planting claw support case, and a discharge for discharging the grease from the inside to the outside of the planting claw support case The grease nipples are provided in the planting claw support case.

第１特徴構成によれば、注入用のグリスニップルを通して植付爪支持ケースの外方から内部に向けてグリスを注入することができる。グリスの注入を継続して植付爪支持ケース内にグリスが充填されると、植付爪支持ケース内のグリスの内圧が高くなるので、排出用のグリスニップルからグリスが排出され始めることになる。その結果、グリスを注入している作業者が、排出用のグリスニップルからグリスが排出されたことを確認すれば、植付爪支持ケース内にグリスが充填された状態となる。   According to the first characteristic configuration, the grease can be injected from the outside to the inside of the planting claw support case through the grease nipple for injection. If grease is continuously injected and grease is filled into the planting claw support case, the internal pressure of the grease in the planting claw support case will increase, so that grease will begin to be discharged from the grease nipple for discharge. . As a result, if the operator who is injecting the grease confirms that the grease has been discharged from the grease nipple for discharging, the planting claw support case is filled with the grease.

グリスニップルは、その入口部に所定の圧力を越える圧力が掛かると、入口部から出口部側に向けてグリスが流動して出口部から排出される構造を有するものであり、注入用のグリスニップルでは、植付爪支持ケース内部へのグリスを注入することが可能になるとともに、植付け作業中に泥土等が飛散してもケース内部に侵入することは阻止される。   The grease nipple has a structure in which when a pressure exceeding a predetermined pressure is applied to the inlet portion, the grease flows from the inlet portion toward the outlet portion and is discharged from the outlet portion. Then, it becomes possible to inject | pour the grease into the planting nail | claw support case inside, and even if mud etc. scatter during a planting operation | work, it will be prevented from entering the case inside.

又、排出用のグリスニップルは、グリスの注入作業時には、グリスが充填されると排出用のグリスニップルの入口部に所定の圧力を越える圧力が掛かるので、ケース外方にグリスが流出する。しかし、植付け作業中においては、植付爪支持ケース内部にて高い圧力が生じることはなく、排出用のグリスニップルの入口部に所定の圧力を越える圧力が掛かることがないので、排出用のグリスニップルからグリスが排出されたり、泥土等が飛散してもケース内部に侵入することは阻止され、植付爪支持ケースの密閉性は維持される。   Further, when the grease nipple for discharging is filled with grease, a pressure exceeding a predetermined pressure is applied to the inlet portion of the grease nipple for discharging, so that the grease flows out of the case. However, during the planting operation, no high pressure is generated inside the planting claw support case, and no pressure exceeding a predetermined pressure is applied to the inlet of the grease nipple for discharging. Even if grease is discharged from the nipple or mud is scattered, it is prevented from entering the inside of the case, and the sealing property of the planting claw support case is maintained.

従って、植付爪支持ケース内にグリスを充填することが可能になるとともに、植付爪支持ケースの密閉性を維持することが可能な田植機の苗植付機構を提供できるに至った。   Therefore, it has become possible to provide a seedling planting mechanism of a rice transplanter that can fill the planting claw support case with grease and can maintain the sealing property of the planting claw support case.

本発明の第２特徴構成は、前記注入用のグリスニップルが、前記植付爪支持ケースにおける前記苗植付爪の突出方向とは反対側の端部に備えられている点にある。   The 2nd characteristic structure of this invention exists in the point by which the said grease nipple for injection | pouring is provided in the edge part on the opposite side to the protrusion direction of the said seedling planting nail in the said planting nail support case.

第２特徴構成によれば、植付爪支持ケースにおける苗植付爪の突出方向側の外方は、取り出し用の苗を載置するための苗のせ台が存在するので作業用の空間を確保し難いものとなるが、苗植付爪の突出方向とは反対側の外方は、開放された状態となっているので、作業用の空間を確保することができ、グリスの注入作業が行い易いものとなる。   According to the second feature configuration, the outside of the seedling planting claw in the planting claw support case on the projecting direction side has a seedling platform for placing a seedling for taking out, so that a working space is secured. Although it is difficult to do so, the outside on the side opposite to the protruding direction of the seedling planting claws is open, so that a working space can be secured and grease injection work is performed. It will be easy.

本発明の第３特徴構成は、グリス注入方向が前記苗押し出し具の苗押し作動方向に略沿う方向になる状態で、前記注入用のグリスニップルが備えられている点にある。   A third characteristic configuration of the present invention is that the grease nipple for injection is provided in a state in which the grease injection direction is a direction substantially along the seedling pushing operation direction of the seedling pushing tool.

第３特徴構成によれば、注入用のグリスニップルから注入されるグリスは、苗押し出し具の苗押し作動方向に略沿う方向に沿って注入されるので、苗押し出し具の摺動部位に対してグリスを有効に供給し易いものとなる。   According to the third characteristic configuration, the grease injected from the grease nipple for injection is injected along a direction substantially along the seedling pushing operation direction of the seedling pushing tool. It becomes easy to supply grease effectively.

本発明の第４特徴構成は、前記苗植付爪が、前記植付爪支持ケースにおける被装着部にボルトにて固定する状態で取り付けられ、前記排出用のグリスニップルが、前記植付爪支持ケースにおける前記被装着部の近くに前記ボルトの締結方向と同じ方向に沿って螺合する状態で取り付けられている。   According to a fourth characteristic configuration of the present invention, the seedling planting claw is attached in a state where the seedling planting claw is fixed to a mounted portion of the planting claw support case with a bolt, and the draining grease nipple is supported by the planting claw support. It is attached in the state screwed along the same direction as the fastening direction of the said bolt near the said to-be-mounted part in a case.

第４特徴構成によれば、苗植付爪が植付爪支持ケースにおける被装着部に対してボルトにて固定され、排出用のグリスニップルが被装着部の近くにボルトの締結方向と同じ方向に沿って螺合する状態で取り付けられる。このように、苗植付爪の固定用のボルトの締結方向と同じ方向に排出用のグリスニップルを螺合させて取り付けるので、組み付けるときの作業性を向上させることができる。   According to the fourth feature configuration, the seedling planting claw is fixed with a bolt to the mounted portion in the planting claw support case, and the discharge grease nipple is in the same direction as the fastening direction of the bolt near the mounted portion. It attaches in the state screwed along. As described above, since the grease nipple for discharging is screwed and attached in the same direction as the fastening direction of the bolt for fixing the seedling planting claw, workability when assembling can be improved.

本発明の第５特徴構成は、前記植付爪支持ケースが、開口が形成されたケース本体と前記開口を閉じる蓋体とをシール部材を介在させる状態で接続して構成されている点にある。   A fifth characteristic configuration of the present invention is that the planting claw support case is configured by connecting a case main body in which an opening is formed and a lid body for closing the opening in a state where a sealing member is interposed. .

第５特徴構成によれば、ケース本体と蓋体とをシール部材を介在させる状態で接続して植付爪支持ケースが構成されるので、ケース本体と蓋体との接続箇所を特別な接着剤等を用いて密閉状態にさせる必要がなく、又、メンテナンス作業のために蓋体を取り外したのちに、再度、接続させるような場合であっても、ケース本体と蓋体とを接続するだけで、シール部材により植付爪支持ケースの密閉性を確保することができる。   According to the fifth feature configuration, since the planting claw support case is configured by connecting the case body and the lid body with the seal member interposed therebetween, the connection portion between the case body and the lid body is made of a special adhesive. It is not necessary to make it sealed by using, etc., and even when connecting again after removing the lid for maintenance work, just connect the case body and lid The sealing member can ensure the sealing property of the planting claw support case.

本発明の第６特徴構成は、田植機本体から供給される動力により第１横軸芯周りで回転する回転ケースに、前記第１横軸芯とは異なる第２横軸芯周りで相対回動駆動される回動軸が支持され、前記植付爪支持ケースが、前記回動軸に一体的に備えられたフランジ部に取り付けられて、前記回転ケースの前記第１横軸芯周りでの回転に伴って苗植え用の移動操作を実行するように構成され、前記植付爪支持ケースに、前記フランジ部の外方側を覆う覆い部が形成されている点にある。   The sixth characteristic configuration of the present invention is that the rotating case that rotates around the first horizontal axis by the power supplied from the rice transplanter body is relatively rotated around the second horizontal axis different from the first horizontal axis. A rotation shaft to be driven is supported, and the planting claw support case is attached to a flange portion integrally provided on the rotation shaft, so that the rotation case rotates around the first horizontal axis. Accordingly, the planting claw support case is formed with a cover portion that covers the outer side of the flange portion.

第６特徴構成によれば、田植機本体から供給される動力により第１横軸芯周りで回転ケースが回転すると、その回転に伴って第２横軸芯周りで回動軸が相対回動駆動され、その回動軸に一体的に備えられたフランジ部に取り付けた植付爪支持ケースが、苗植え用の移動操作を実行することになる。   According to the sixth feature configuration, when the rotating case rotates around the first horizontal axis by the power supplied from the rice transplanter body, the rotary shaft is driven to rotate relative to the second horizontal axis along with the rotation. Then, the planting claw support case attached to the flange portion integrally provided on the rotating shaft executes a moving operation for seedling planting.

前記フランジ部は、回動軸に一体的に備えられるものであり、回動軸と同じ材料、例えば鉄材等が用いられるが、植付爪支持ケースは、回転動力を伝える必要はないので例えばアルミ材等の錆び難い材料を使用することが可能である。ちなみに、鉄材等の回動軸に使用する材料は水分の付着により早期に錆びが発生し易いものである。   The flange portion is provided integrally with the rotation shaft, and the same material as the rotation shaft, such as iron, is used. However, the planting claw support case does not need to transmit rotational power, and thus, for example, aluminum. It is possible to use a material that does not easily rust, such as a material. Incidentally, the material used for the rotating shaft such as an iron material is likely to rust early due to the adhesion of moisture.

そこで、アルミ材等の錆び難い材料を使用することが可能な植付爪支持ケースを用いて、フランジ部の外方側を覆う覆い部を形成することにより、フランジ部に対して雨や泥水等が降りかかることを防止して、フランジ部が早期に錆びることを回避し易いものにできる。   Therefore, by using a planting claw support case that can use a material that does not rust easily such as aluminum, a cover part that covers the outer side of the flange part is formed, so that rain, muddy water, etc. It is possible to prevent the flange portion from rusting at an early stage.

苗植付装置の側面図である。It is a side view of a seedling planting apparatus. 苗植付機構の縦断背面図である。It is a vertical rear view of a seedling planting mechanism. 苗植付機構の縦断側面図である。It is a vertical side view of a seedling planting mechanism. 苗植付機構の平面図である。It is a top view of a seedling planting mechanism. 苗植付機構の横断平面図である。It is a cross-sectional top view of a seedling planting mechanism. 図５のVI−VI線断面図である。FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5. 図５のVII−VII線断面図である。It is the VII-VII sectional view taken on the line of FIG. 摺動部材とカム式操作部の分解斜視図である。It is a disassembled perspective view of a sliding member and a cam type operation part.

以下、図面に基づいて、本発明に係る田植機の苗植付機構について説明する。
図１に、乗用型田植機における田植機本体としての走行機体（図示せず）の後部に昇降自在に連結された苗植付装置１を示している。
この苗植付装置１は、角パイプ状の機体横向きのメインフレーム２、このメインフレーム２の機体横幅方向略中央部に連結されているフィードケース３、メインフレーム２に機体横幅方向に適宜間隔をあけて配置して連結されている複数の植付け伝動ケース４等により枠体が構成されており、枠体の前部に苗のせ台５が機体横幅方向に一定ストロークで往復横移動駆動される状態で備えられ、複数の植付け伝動ケース４の後部の左右両側に苗植付機構６が駆動自在に備えられ、苗植付装置１の下部には機体横幅方向に並ぶ複数の接地フロート７が備えられている。そして、走行機体の走行に伴って、走行機体側から動力が供給されて、苗植付機構６に備えられた苗植付爪８により、苗のせ台５に載置されたマット状苗の一部（１株分）を切り出し、接地フロート７により整地された後の圃場面に植付けていくように構成されている。 Hereinafter, the seedling planting mechanism of the rice transplanter according to the present invention will be described based on the drawings.
FIG. 1 shows a seedling planting apparatus 1 connected to a rear portion of a traveling machine body (not shown) as a rice transplanter body in a riding type rice transplanter so as to be movable up and down.
This seedling planting apparatus 1 includes a square pipe-shaped main frame 2 facing the body side, a feed case 3 connected to a substantially central part of the main frame 2 in the width direction of the body, and an appropriate interval in the width direction of the body. A frame is constituted by a plurality of planting transmission cases 4 and the like that are arranged open and connected, and the seedling platform 5 is driven to reciprocate laterally with a constant stroke in the width direction of the body at the front of the frame A seedling planting mechanism 6 is provided on the left and right sides of the rear part of the plurality of planting transmission cases 4 so as to be freely driven, and a plurality of grounding floats 7 arranged in the width direction of the machine body are provided below the seedling planting device 1. ing. Then, as the traveling machine body travels, power is supplied from the traveling machine body side, and one of the mat-like seedlings placed on the seedling raising table 5 by the seedling planting claws 8 provided in the seedling planting mechanism 6. A part (for one stock) is cut out and planted in a field scene after leveling by the grounding float 7.

次に、苗植付機構６の構成について説明する。
図１に示すように、植付け伝動ケース４の後部の横側に、側面視で略長方形状の回転ケース９が機体横方向に沿う第１横軸芯Ｘ１周りで駆動回転するように取付けられ、この回転ケース９の第１横軸芯Ｘ１から径方向に離れた位置であって且つ回転ケース９の回転方向に互いに１８０度の位相差を有している二箇所に、植付爪支持ケース１０が第１横軸芯Ｘ１と平行な第２横軸芯Ｘ２周りで相対回動する状態で取付けられている。そして、回転ケース９が第１横軸芯Ｘ１周りで回転するに伴って、植付爪支持ケース１０と回転ケース９とが相対回動して、植付爪支持ケース１０が苗植え用の移動操作を実行するように構成されている。 Next, the configuration of the seedling planting mechanism 6 will be described.
As shown in FIG. 1, a rotation case 9 having a substantially rectangular shape in side view is attached to the rear side of the rear portion of the planting transmission case 4 so as to drive and rotate around the first horizontal axis X1 along the lateral direction of the machine body. The planting claw support case 10 is provided at two locations that are radially away from the first horizontal axis X1 of the rotating case 9 and that have a phase difference of 180 degrees in the rotating direction of the rotating case 9. Are attached in a state of relative rotation around the second horizontal axis X2 parallel to the first horizontal axis X1. Then, as the rotating case 9 rotates around the first horizontal axis X1, the planting claw support case 10 and the rotating case 9 rotate relative to each other so that the planting claw support case 10 moves for seedling planting. Configured to perform operations.

説明を加えると、図２に示すように、植付け伝動ケース４から横向きに突出する状態で回転自在に支持された出力軸１１が設けられ、この出力軸１１に回転ケース９の長手方向の中央部が一体回動する状態で装着されている。すなわち、回転ケース９における植付け伝動ケース４側の側壁部の中央部９ａがベアリング１２を介して出力軸１１に相対回動自在に支持されており、回転ケース９における植付け伝動ケース４側とは反対側の側壁部に設けられた中央部の軸承部９ｂが、出力軸１１に対してテーパピン１３によって一体回動自在に連結される状態で外嵌装着されている。   In other words, as shown in FIG. 2, an output shaft 11 that is rotatably supported in a state of projecting laterally from the planting transmission case 4 is provided, and a central portion in the longitudinal direction of the rotary case 9 is provided on the output shaft 11. Is mounted so as to rotate integrally. That is, the central portion 9a of the side wall portion of the rotating case 9 on the planting transmission case 4 side is supported by the output shaft 11 via the bearing 12 so as to be rotatable relative to the output shaft 11, and is opposite to the planting transmission case 4 side of the rotating case 9. A central bearing portion 9b provided on the side wall portion on the side is externally fitted and attached to the output shaft 11 so as to be integrally rotatable with a taper pin 13.

又、回転ケース９の長手方向の両側部夫々に横軸芯Ｘ２周りで回動自在に且つ回転ケース９から横側外方に突出する状態で機体横方向に沿う軸芯を有する回動軸１４が備えられ、これら一対の回動軸１４の夫々に植付爪支持ケース１０が取り付けられている。   In addition, a rotating shaft 14 having an axial core extending in the lateral direction of the machine body in a state of being rotatable about the horizontal axis X2 and projecting laterally outward from the rotating case 9 on both sides in the longitudinal direction of the rotating case 9. The planting claw support case 10 is attached to each of the pair of rotating shafts 14.

すなわち、図２〜図４に示すように、回動軸１４における回転ケース９から横側外方に突出する外方突出部分に一体的にフランジ部１５が形成され、このフランジ部１５に対して植付爪支持ケース１０に形成された連結部１６を２箇所でボルト１７の締結により固定連結する構成となっている。又、ボルト締結箇所におけるフランジ部１５側の挿通孔１８が長孔に形成され、植付爪支持ケース１０の取り付け位置を回動軸１４の軸芯Ｘ２周りで微調節することが可能なように構成されている。フランジ部１５は、回動軸１４と同じ材料、例えば鉄材等を用いて構成され、一方、植付爪支持ケース１０は、例えば、錆び難いアルミ材等の材料を用いて構成されている。   That is, as shown in FIGS. 2 to 4, a flange portion 15 is integrally formed on an outward projecting portion of the pivot shaft 14 projecting laterally outward from the rotating case 9, and the flange portion 15 The connection part 16 formed in the planting claw support case 10 is fixedly connected by fastening bolts 17 at two locations. Further, the insertion hole 18 on the flange portion 15 side at the bolt fastening portion is formed as a long hole so that the attachment position of the planting claw support case 10 can be finely adjusted around the axis X2 of the rotating shaft 14. It is configured. The flange portion 15 is configured using the same material as the rotating shaft 14, for example, an iron material, while the planting claw support case 10 is configured using a material such as an aluminum material that is not easily rusted.

図２及び図４に示すように、植付爪支持ケース１０における連結部１６は、フランジ部１５の径方向外方側を覆うように延長形成されており、この延長形成された部分によりフランジ部１５の外周部を覆う覆い部ｈが構成されている。このように錆び難い材料を用いて構成される植付爪支持ケース１０を利用して、フランジ部１５に雨水や泥水等が飛散しないようにして、早期に錆びが発生することを回避させるようにしている。   As shown in FIGS. 2 and 4, the connecting portion 16 in the planting claw support case 10 is formed so as to cover the radially outer side of the flange portion 15, and the flange portion is formed by this extended portion. The cover part h which covers 15 outer peripheral parts is comprised. By using the planting claw support case 10 configured using a material that does not easily rust in this manner, rainwater, muddy water, or the like is not scattered on the flange portion 15 so as to avoid the occurrence of rust at an early stage. ing.

従って、回転ケース９が第１横軸芯Ｘ１としての出力軸１１の軸芯周りで回転自在に植付け伝動ケース４に取り付けられており、植付爪支持ケース１０が第２横軸芯Ｘ２としての回動軸１４の軸芯周りで相対回動自在に回転ケース９に取り付けられている。   Accordingly, the rotary case 9 is attached to the planting transmission case 4 so as to be rotatable around the axis of the output shaft 11 as the first horizontal axis X1, and the planting claw support case 10 is used as the second horizontal axis X2. The rotary case 9 is attached to the rotary case 9 so as to be relatively rotatable around the axis of the rotary shaft 14.

そして、図３及び図４に示すように、苗植付爪８が、植付爪支持ケース１０における被装着部１９に２本のボルト２０にて締め付け固定される状態で取り付けられており、苗植付爪８はボルト締結箇所から外方に向けて長く突出する状態で形成されている。   As shown in FIGS. 3 and 4, the seedling planting claw 8 is attached to the mounted portion 19 in the planting claw support case 10 in a state of being fastened and fixed by two bolts 20. The planting claw 8 is formed so as to protrude long outward from the bolt fastening portion.

図２に示すように、回転ケース９内には、ギア咬み合い式の回動位相変更手段Ｓが備えられている。すなわち、出力軸１１の外周部に相対回転自在で且つ植付け伝動ケース４にて回転が規制される状態で太陽ギア２１が備えられ、この太陽ギア２１のケース長手方向両側部に太陽ギア２１に咬み合う状態で一対の中継ギア２２が横向き軸芯周りで回動自在に支持される状態で備えられ、前記各回動軸１４には一対の中継ギア２２が夫々咬み合う遊星ギア２３が備えられている。   As shown in FIG. 2, a gear meshing type rotation phase changing means S is provided in the rotary case 9. That is, the sun gear 21 is provided in a state that the outer peripheral portion of the output shaft 11 is relatively rotatable and the rotation is restricted by the planting transmission case 4, and the sun gear 21 is bitten by the sun gear 21 on both sides in the case longitudinal direction. A pair of relay gears 22 is provided in a state of being supported so as to be pivotable around a lateral axis, and a planetary gear 23 in which the pair of relay gears 22 are engaged with each other is provided. .

詳細な構成については記載はしないが、太陽ギア２１、中継ギア２２、遊星ギア２３は夫々、円形ではなく、回転位相が異なると回転軸芯から外周のギア噛合部までの距離が変化する非円形形状に形成されており、又、ギア同士が互いに噛み合って連動して回動することが可能なように構成されている。   Although a detailed configuration is not described, the sun gear 21, the relay gear 22, and the planetary gear 23 are not circular, and the non-circular shape in which the distance from the rotation axis to the outer gear meshing portion changes when the rotational phase is different. It is formed in a shape and is configured such that the gears can mesh with each other and rotate in conjunction with each other.

このように前記各ギア２１，２２，２３が非円形ギアにて構成され、且つ、ギア同士が互いに噛み合って連動回動することにより、図１に示すように、回転ケース９が出力軸１１の軸芯Ｘ２周りで回転するに伴って、苗植付爪８の先端部が側面視で略楕円状の軌跡を描く状態で植付爪支持ケース１０が苗植え用の移動操作を実行して、苗のせ台５からマット苗の一部を切り出して圃場に植付けることができるように構成されている。   In this way, each of the gears 21, 22, 23 is constituted by a non-circular gear, and the gears mesh with each other and rotate in conjunction with each other, whereby the rotating case 9 is connected to the output shaft 11 as shown in FIG. As the tip of the seedling planting claw 8 rotates around the axis X2, the planting claw support case 10 executes a moving operation for seedling planting in a state in which the tip of the seedling planting claw 8 draws a substantially elliptical locus in side view, A part of the mat seedling is cut out from the seedling platform 5 and can be planted in the field.

図３〜図５に示すように、植付爪支持ケース１０は、開口２４が形成されたケース本体１０Ａと、この開口２４を閉塞する蓋体１０Ｂとを、夫々のフランジ部２５，２６同士をボルト２７で連結して一体的に接続して構成されており、ケース本体１０Ａと蓋体１０Ｂとの間の接続箇所には、開口２４の外周を囲う状態で円環状のシール部材２８が介装されており、密閉状態を確保することができるように構成されている。   As shown in FIGS. 3 to 5, the planting claw support case 10 includes a case main body 10 </ b> A in which an opening 24 is formed and a lid body 10 </ b> B that closes the opening 24. An annular seal member 28 is interposed at the connection portion between the case main body 10A and the lid body 10B so as to surround the outer periphery of the opening 24. It is configured so that a sealed state can be secured.

又、図２に示すように、ケース本体１０Ａと蓋体１０Ｂとのフランジ部２５，２６同士を３箇所にてボルト２７で締結固定するようになっており、後述するように、ケース本体１０Ａ及び蓋体１０Ｂ夫々において摺動支持される摺動部材２９が存在する箇所の近傍では、その左右両側の２箇所にて位置決めピン３０を挿通させてケース本体１０Ａと蓋体１０Ｂとの間での位置決めを行うようにしている。   Further, as shown in FIG. 2, the flange portions 25 and 26 of the case main body 10A and the lid body 10B are fastened and fixed with bolts 27 at three locations. As will be described later, the case main body 10A and In the vicinity of the place where the sliding member 29 to be slidably supported is present in each of the lids 10B, the positioning pins 30 are inserted at two places on the left and right sides of the lid 10B, so that the positioning between the case body 10A and the lid 10B is performed. Like to do.

図３に示すように、苗植付爪８が苗のせ台５から切り出した１株分の苗を苗植付爪８から押し出す苗押し出し具３１が、苗植付爪８を支持する植付爪支持ケース１０の内部から外方に突出する状態で且つ摺動自在に植付爪支持ケース１０に支持されており、植付爪支持ケース１０の苗植え用の移動操作に伴って苗押し出し具３１を作用位置と非作用位置とに移動させる移動操作機構３２が、植付爪支持ケース１０の内部に備えられている。   As shown in FIG. 3, the seedling pushing tool 31 that pushes out one seedling of the seedling planting claw 8 cut out from the seedling table 5 from the seedling planting claw 8 supports the seedling planting claw 8. The planting claw support case 10 is slidably supported by the planting claw support case 10 in a state of projecting outward from the inside of the support case 10, and the seedling pushing tool 31 is moved along with the moving operation for planting the planting claw support case 10. A moving operation mechanism 32 is provided inside the planting claw support case 10 so as to move it between the working position and the non-working position.

苗押し出し具３１は、苗植付爪８に近接する箇所において苗植付爪８の長手方向に沿って往復移動して、苗植付爪８が切り出して保持している１株分の苗を押し出して圃場に植付けることができるようにしたものである。   The seedling pushing tool 31 reciprocates along the longitudinal direction of the seedling planting nail 8 at a location close to the seedling planting nail 8, and the seedling pushing tool 31 cuts out and holds one seedling. It can be pushed out and planted in the field.

次に、図３、図５及び図８を参照しながら、苗押し出し具３１の具体的な構成について詳述する。
苗押し出し具３１は、植付爪支持ケース１０に形成された摺動支持部３３ａ，３３ｂにて摺動自在に支持される摺動部材２９と、苗に対して押し出し作用する押し出し部材３４とを備えて構成されている。又、押し出し部材３４は摺動部材２９に対して着脱自在に取り付けられている。 Next, a specific configuration of the seedling pusher 31 will be described in detail with reference to FIGS. 3, 5, and 8.
The seedling pushing tool 31 includes a sliding member 29 that is slidably supported by sliding support portions 33a and 33b formed in the planting claw support case 10, and a pushing member 34 that pushes the seedling. It is prepared for. The pushing member 34 is detachably attached to the sliding member 29.

説明を加えると、摺動部材２９は、略丸棒状に形成されており、その長手方向の途中部に、他の部分よりも大径状に形成されるとともに直径方向に沿って挿通する挿通孔３５が形成された被係合部３６が設けられている。この被係合部３６には移動操作機構３２が係合する構成となっている。   If it demonstrates, the sliding member 29 will be formed in the substantially round bar shape, and the insertion hole which is formed in the middle part of the longitudinal direction in larger diameter than the other part, and penetrates along a diameter direction. An engaged portion 36 in which 35 is formed is provided. The moving operation mechanism 32 is engaged with the engaged portion 36.

又、被係合部３６に対する長手方向の両側部夫々に円筒状の摺動用被案内部３７，３８が形成されており、植付爪支持ケース１０には、移動方向における苗押し出し側に位置する爪先端側の摺動支持部３３ａ、及び、苗押し出し側とは反対側に位置する基端側の摺動支持部３３ｂの夫々が備えられている。   Further, cylindrical sliding guided portions 37 and 38 are formed on both side portions in the longitudinal direction with respect to the engaged portion 36, and the planting claw support case 10 is located on the seedling pushing side in the moving direction. A sliding support portion 33a on the tip end side of the nail and a sliding support portion 33b on the base end side located on the opposite side to the seedling extrusion side are provided.

そして、被係合部３６の長手方向の両側に形成される一対の摺動用被案内部３７，３８のうち、苗押し出し側に位置する一方の摺動用被案内部３７が、ブッシュ４１を介して爪先端側の摺動支持部３３ａにて摺動自在に支持されている。又、一対の摺動用被案内部３７，３８のうち、苗押し出し側とは反対側に位置する他方の摺動用被案内部３８が、ブッシュ４２を介して基端側の摺動支持部３３ｂにて摺動自在に支持されている。   Of the pair of sliding guided portions 37, 38 formed on both sides in the longitudinal direction of the engaged portion 36, one sliding guided portion 37 positioned on the seedling extrusion side is interposed via the bush 41. It is slidably supported by a sliding support portion 33a on the claw tip side. Further, of the pair of sliding guided portions 37 and 38, the other sliding guided portion 38 located on the side opposite to the seedling pushing side is connected to the sliding support portion 33b on the base end side via the bush 42. And is slidably supported.

図３に示すように、基端側の摺動支持部３３ｂにおいては、ブッシュ４２により他方の摺動用被案内部３８の外周部が摺動自在に支持される構成となっているが、この基端側の摺動支持部３３ｂの内奥側は、閉塞された空間となっており、密閉状態になっていると摺動部材２９の移動に伴って内部圧力が高くなるので、圧力を逃がすために、図５及び図７に示すように、内奥側の空間Ｐ１と植付爪支持ケース１０の内部空間Ｐ２とを連通する空気逃がし溝４３が左右両側に形成されている。   As shown in FIG. 3, the sliding support portion 33b on the base end side is configured such that the outer peripheral portion of the other sliding guided portion 38 is slidably supported by the bush 42. The inner back side of the sliding support portion 33b on the end side is a closed space. When the sealing member is in a sealed state, the internal pressure increases with the movement of the sliding member 29, so that the pressure is released. Further, as shown in FIGS. 5 and 7, air escape grooves 43 that communicate the inner space P <b> 1 and the inner space P <b> 2 of the planting claw support case 10 are formed on both left and right sides.

図３及び図５に示すように、植付爪支持ケース１０における爪先端側の摺動支持部３３ａにシール部材４４が備えられている。このシール部材４４は、植付爪支持ケース１０内部に充填される潤滑用のグリスが外方に漏れ出ることや泥土が内部に侵入すること等を防止する。   As shown in FIGS. 3 and 5, a seal member 44 is provided on the sliding support portion 33 a on the tip end side of the planting claw support case 10. This seal member 44 prevents the grease for lubrication filled in the planting claw support case 10 from leaking outward, mud soil from entering the interior, and the like.

又、図３に示すように、植付爪支持ケース１０における爪先端側の摺動支持部３３ａの苗押し出し側の端部３９の摺動部材２９の移動方向に沿う位置が、苗植付爪８を固定する２本のボルト２０のうちの苗押し出し側（爪先端側）に位置するボルト２０による締結箇所と略同じ位置になるように構成されている。   Further, as shown in FIG. 3, the position along the moving direction of the sliding member 29 of the end portion 39 on the seedling pushing side of the sliding support portion 33a on the tip side of the nail in the planting nail support case 10 is the seedling planting nail. It is comprised so that it may become a substantially the same position as the fastening location by the volt | bolt 20 located in the seedling extrusion side (claw tip side) of the two volt | bolts 20 which fix 8.

摺動部材２９の苗押し出し側の端部は、植付爪支持ケース１０から外方に突出する状態で設けられ、その外方側の先端部には、段差４５を付けて小径に設けられるとともに外周部に雄ネジ４６を形成した小径ネジ部４７が一体的に形成されている。そして、この小径ネジ部４７と段差４５とを利用して押し出し部材３４を固定するよう構成されている。   The end of the sliding member 29 on the seedling extrusion side is provided in a state of protruding outward from the planting claw support case 10, and a tip 45 on the outer side is provided with a step 45 and a small diameter. A small-diameter screw portion 47 in which a male screw 46 is formed on the outer peripheral portion is integrally formed. The pushing member 34 is fixed by using the small diameter screw portion 47 and the step 45.

押し出し部材３４は、摺動部材２９に取り付け固定される取付け部４８と、その取付け部４８から苗押し出し側に向けて延びる延出部４９と、その延出部４９の苗押し出し側箇所に連なる先端作用部５０とが一体的に連なる状態で形成されている。   The extruding member 34 includes an attaching portion 48 that is attached and fixed to the sliding member 29, an extending portion 49 that extends from the attaching portion 48 toward the seedling extruding side, and a tip that continues to the seedling extruding side portion of the extending portion 49. The action part 50 is formed in a state of continuous integration.

取付け部４８は、摺動部材２９における苗押し出し側の先端部に対して外嵌する状態で所謂インロー構造により嵌り合う形状に構成されている。すなわち、図３に示すように、摺動部材２９の小径ネジ部４７が嵌り合う小径孔部５１と、一方の摺動用被案内部３７が嵌り合う大径孔部５２とを備えた段付きの挿通孔５３が形成されている。摺動部材２９における苗押し出し側の先端部をこの挿通孔５３に挿通させて、小径孔部５１と大径孔部５２との間に形成された段差部５４にて、摺動部材２９の苗押し出し側の端部に形成された段差４５が受け止められた状態で、小径孔部５１の外方側に突出する小径ネジ部４７（ボルト）に外方側からナット５５を装着する構成となっている。   The attachment portion 48 is configured in a shape that fits with a so-called inlay structure in a state in which the attachment portion 48 is externally fitted to the distal end portion of the sliding member 29 on the seedling extrusion side. That is, as shown in FIG. 3, a stepped portion including a small diameter hole portion 51 in which the small diameter screw portion 47 of the sliding member 29 fits and a large diameter hole portion 52 in which one of the sliding guided portions 37 fits. An insertion hole 53 is formed. The tip of the sliding member 29 on the seedling extrusion side is inserted into the insertion hole 53, and the seedling of the sliding member 29 is formed at the step portion 54 formed between the small diameter hole portion 51 and the large diameter hole portion 52. In a state where the step 45 formed at the end portion on the extrusion side is received, the nut 55 is attached from the outside to the small diameter screw portion 47 (bolt) protruding outward from the small diameter hole portion 51. Yes.

そして、ナット５５を締め付けることで、ボルト・ナット（４７，５５）による締め付けと、上述したような摺動部材２９と押し出し部材３４とが嵌り合う段付嵌合部Ｄにおける段差での接当とにより、摺動部材２９と押し出し部材３４とを固定連結することができ、ナット５５を緩めることで、押し出し部材３４を摺動部材２９から取り外すことができるように構成されている。   Then, by tightening the nut 55, tightening with bolts and nuts (47, 55) and contact at a step in the stepped fitting portion D where the sliding member 29 and the pushing member 34 are fitted as described above. Thus, the sliding member 29 and the pushing member 34 can be fixedly connected to each other, and the pushing member 34 can be detached from the sliding member 29 by loosening the nut 55.

図６に示すように、押し出し部材３４における苗に直接接当する先端作用部５０は、苗植付爪８により切り出されて保持されている苗を効率よく押し操作するために、移動方向視で摺動部材２９側に長く延びる略Ｕ字状に形成されている。又、図３に示すように、延出部４９及び先端作用部５０のうちで苗植付爪８に近い箇所は、摺動部材２９の移動方向視において摺動部材２９に対して苗植付爪８側にオフセットした状態で設けられる。つまり、押し出し部材３４における延出部４９及び先端作用部５０のうちで苗植付爪８に近い箇所は、苗植付爪８に近い位置にあり、摺動部材２９は苗植付爪８から離れた位置に設けられることになる。   As shown in FIG. 6, the distal end working part 50 that directly contacts the seedling in the push-out member 34 is viewed in the moving direction in order to efficiently push the seedling that is cut and held by the seedling planting claws 8. It is formed in a substantially U shape extending long on the sliding member 29 side. Further, as shown in FIG. 3, in the extended portion 49 and the tip acting portion 50, the portion close to the seedling planting claw 8 is planted with respect to the sliding member 29 in the moving direction of the sliding member 29. It is provided in an offset state on the claw 8 side. That is, the location close to the seedling planting claw 8 in the extending portion 49 and the tip action portion 50 of the pushing member 34 is close to the seedling planting claw 8, and the sliding member 29 extends from the seedling planting claw 8. It will be provided at a distant position.

苗植付爪８、苗押し出し具３１における摺動部材２９及び苗押し出し部材３４の夫々は、苗との接触や摺動運動による磨耗するおそれがあるので、表面をＤＬＣ（Ｄｉａｍｏｎｄ Ｌｉｋｅ Ｃａｒｂｏｎ）皮膜でコーティングしてあり、耐久性を向上させるようにしている。   Since the seedling planting claws 8, the sliding member 29 and the seedling pushing member 34 in the seedling pushing tool 31 may be worn by contact with the seedling or sliding motion, the surface is covered with a DLC (Diamond Like Carbon) film. It is coated to improve durability.

図３に示すように、移動操作機構３２が、摺動部材２９の移動方向と交差する方向に沿う軸芯Ｘ３周りで揺動自在に支持され且つ摺動部材２９に係合作用して作用位置と非作用位置とに移動させる揺動操作部材５６と、この揺動操作部材５６を押圧作用して摺動部材２９を作用位置に移動付勢するコイルバネ５７と、所定方向（図３の符号Ａで示す方向）に回転する回転カム５８による押し作用により、コイルバネ５７の付勢力に抗して摺動部材２９が非作用位置に移動するように揺動操作部材５６を揺動操作させ、回転カム５８による押し作用が終了すると、コイルバネ５７の付勢力により摺動部材２９を作用位置に移動させることを許容するカム式操作部５９とを備えて構成されている。   As shown in FIG. 3, the moving operation mechanism 32 is supported so as to be swingable around an axis X <b> 3 along the direction intersecting the moving direction of the sliding member 29 and engages with the sliding member 29 to act. And a non-operating position of the swing operation member 56, a coil spring 57 that presses the swing operation member 56 to bias the sliding member 29 to the operating position, and a predetermined direction (reference A in FIG. 3). The swing operation member 56 is swung so that the sliding member 29 moves to the non-actuated position against the biasing force of the coil spring 57 by the pushing action of the rotation cam 58 rotating in the direction indicated by When the pushing action by 58 is completed, the cam-type operation part 59 is configured to allow the sliding member 29 to move to the acting position by the urging force of the coil spring 57.

説明を加えると、揺動操作部材５６は、植付爪支持ケース１０の内部に備えられた支軸６０により、その支軸６０の軸芯Ｘ３周りで天秤揺動自在に支持されている。この揺動操作部材５６の一端側には、カム式操作部５９における回転カム５８にて押し作用を受けるカムフォロア６１が備えられ、他端側には、摺動部材２９における被係合部３６に接当係合する接当作用部６２が備えられている。   In other words, the swing operation member 56 is supported by the support shaft 60 provided inside the planting claw support case 10 so as to be able to swing the balance around the axis X3 of the support shaft 60. One end of the swing operation member 56 is provided with a cam follower 61 that receives a pushing action by the rotating cam 58 in the cam type operation unit 59, and the engaged portion 36 of the sliding member 29 is provided on the other end side. An abutting action part 62 that abuts and engages is provided.

接当作用部６２は、摺動部材２９の被係合部３６に形成された挿通孔３５に入り込み係合して、揺動操作部材５６が支軸６０の軸芯Ｘ３周りで揺動するに伴って挿通孔３５の縦面部分３５ａに接当して摺動部材２９を移動操作させるように構成されている。又、接当作用部６２は、摺動部材２９の移動方向と交差する方向に沿う軸芯（Ｘ３）周りで揺動するので、摺動部材２９の移動方向（図３の図面左右）と直交する方向（図３の図面上下方向）への運動成分を有している。   The contact action portion 62 enters and engages with the insertion hole 35 formed in the engaged portion 36 of the sliding member 29, so that the swing operation member 56 swings around the axis X 3 of the support shaft 60. Along with this, the sliding member 29 is configured to move by making contact with the vertical surface portion 35a of the insertion hole 35. Further, since the contact acting portion 62 swings around the axis (X3) along the direction intersecting the moving direction of the sliding member 29, it is orthogonal to the moving direction of the sliding member 29 (left and right in FIG. 3). It has a motion component in the direction of movement (vertical direction in FIG. 3).

そして、挿通孔３５の縦面部分３５ａに対する接当箇所が摺動部材２９の移動方向と直交する方向へ移動しても、押し作用を充分に発揮できるように、挿通孔３５が縦長に形成されており、被係合部３６が、接当作用部６２における移動方向以外の運動成分を吸収可能な融通Ｕ１を備える構成となっている。   And even if the contact location with respect to the vertical surface part 35a of the insertion hole 35 moves in the direction orthogonal to the moving direction of the sliding member 29, the insertion hole 35 is formed in a vertically long shape so that the pushing action can be sufficiently exerted. In addition, the engaged portion 36 is configured to include the accommodation U1 capable of absorbing a motion component other than the moving direction in the contact acting portion 62.

支軸６０よりも接当作用部６２側の途中位置に形成された突部６３に対して、一端側が植付爪支持ケース１０に形成されたバネ受け部６４にて受け止め支持されているコイルバネ５７の他端側が受け具６５を介して押圧作用するように構成されている。つまり、このコイルバネ５７の付勢力により、接当作用部６２が摺動部材２９を作用位置に移動させる方向に向けて揺動操作部材５６を揺動付勢するように構成されている。   A coil spring 57 in which one end side is received and supported by a spring receiving portion 64 formed in the planting claw support case 10 with respect to the protrusion 63 formed at a midway position on the contact acting portion 62 side with respect to the support shaft 60. The other end side is configured to be pressed through the receiving member 65. That is, the urging force of the coil spring 57 is configured to oscillate and oscillate the oscillating operation member 56 in the direction in which the contact action portion 62 moves the sliding member 29 to the operating position.

カム式操作部５９は、図２、図３及び図８に示すように、植付爪支持ケース１０の内部に回動軸１４と同一軸芯上に位置する状態で且つ植付爪支持ケース１０に対して相対回動自在にカム軸６６を備え、そのカム軸６６の外周部にカムフォロア６１が接当作用する回転カム５８を一体形成する状態で備えて構成されている。   As shown in FIGS. 2, 3, and 8, the cam type operation unit 59 is located in the planting claw support case 10 on the same axis as the rotation shaft 14, and the planting claw support case 10. The cam shaft 66 is provided so as to be relatively rotatable with respect to the cam shaft 66, and a rotating cam 58 with which the cam follower 61 comes into contact with the outer periphery of the cam shaft 66 is integrally formed.

又、図２に示すように、回転ケース９の長手方向の両側部に備えられる各植付爪支持ケース１０の夫々におけるカム軸６６同士を、各植付爪支持ケース１０に亘って架設される連結杆６８により連結する構成となっている。このように各カム軸６６を連結杆６８により連結することで、回転ケース９が回転駆動されても、カム軸６６は回転ケース９に対して相対回動位置が変化しないように構成されている。   Further, as shown in FIG. 2, the camshafts 66 of each planting claw support case 10 provided on both sides in the longitudinal direction of the rotating case 9 are installed across the planting claw support cases 10. It is configured to be connected by a connecting rod 68. By connecting the cam shafts 66 with the connecting rods 68 in this way, the cam shaft 66 is configured so that the relative rotation position with respect to the rotary case 9 does not change even when the rotary case 9 is driven to rotate. .

これに対して植付爪支持ケース１０は、上記したようなギア式の回動位相変更手段Ｓによって回転ケース９に対して相対的に回動位置が変更されるので、カム軸６６に対して相対的に回動する状態となり、回転カム５８の形状を工夫することで、回転ケース９が回転するに伴って、揺動操作部材５６を揺動操作させて摺動部材２９を作用位置と非作用位置とに移動させる操作を繰り返し実行することができるように構成されている。   On the other hand, since the rotation position of the planting claw support case 10 is changed relative to the rotation case 9 by the gear-type rotation phase changing means S as described above, By turning the rotation cam 58 in a relatively rotating state, the swing operation member 56 is swung as the rotation case 9 rotates, so that the slide member 29 is not moved to the working position. The operation of moving to the action position can be repeatedly executed.

すなわち、苗植付爪８により苗のせ台５に載置されるマット状苗を切り出して植え付けることができるように、回転ケース９が図１における反時計周りの方向に回転駆動される。
そのとき、植付爪支持ケース１０が苗のせ台５から苗を切り出して下方に移動すると、回転カム５８が所定方向に相対回動して、苗を植え付けるタイミングで、摺動部材２９が作用状態に切り換わるように、言い換えると、揺動操作部材５６のカムフォロア６１がカム部材６７における大径案内部６９から小径案内部７０に移行して、揺動操作部材５６に対する回転カム５８による押し作用が無くなり、コイルバネ５７の付勢力により摺動部材２９が作用位置に切り換わるように構成されている。
尚、コイルバネ５７の付勢力により摺動部材２９が作用位置に切り換わると、揺動操作部材５６がゴム製の弾性受止め具７１により受け止められて、それ以上の移動が規制されるように構成されている。 That is, the rotating case 9 is driven to rotate in the counterclockwise direction in FIG. 1 so that the matted seedling placed on the seedling table 5 can be cut out and planted by the seedling planting claws 8.
At that time, when the planting claw support case 10 cuts out the seedling from the seedling placing base 5 and moves downward, the rotating cam 58 is relatively rotated in a predetermined direction, and the sliding member 29 is activated at the timing of planting the seedling. In other words, the cam follower 61 of the swing operation member 56 shifts from the large diameter guide portion 69 to the small diameter guide portion 70 in the cam member 67, and the pushing action by the rotary cam 58 on the swing operation member 56 is performed. The sliding member 29 is configured to be switched to the operating position by the biasing force of the coil spring 57.
When the sliding member 29 is switched to the operating position by the biasing force of the coil spring 57, the swing operation member 56 is received by the rubber elastic receiving member 71, and further movement is restricted. Has been.

又、摺動部材２９が作用位置に切り換わることにより苗植付爪８から苗が押し出されて、圃場への植え付けが終了したのちは、揺動操作部材５６のカムフォロア６１が回転カム５８における傾斜案内部７２にて案内されて、回転カム５８による押し作用が働き、コイルバネ５７の付勢力に抗して摺動部材２９が非作用位置に切り換わるように構成されている。   Also, after the seedling is pushed out from the seedling planting claw 8 by switching the sliding member 29 to the operating position and the planting on the farming field is finished, the cam follower 61 of the swing operation member 56 is inclined at the rotary cam 58. Guided by the guide portion 72, the pushing action by the rotating cam 58 works, and the sliding member 29 is configured to switch to the non-acting position against the urging force of the coil spring 57.

苗植付け作業を実行するときは、回転ケース９は常に所定方向（図１における反時計周りの方向）に回転駆動されるが、何らかの異常により回転ケース９が所定方向とは逆方向に回転して、回転カム５８が所定方向とは反対方向に相対回動して、揺動操作部材５６に対して逆向きに押し作用したときに、揺動操作部材５６における支軸６０が退避するための融通Ｕ２が形成されている。   When the seedling planting operation is performed, the rotating case 9 is always driven to rotate in a predetermined direction (counterclockwise direction in FIG. 1). However, due to some abnormality, the rotating case 9 rotates in a direction opposite to the predetermined direction. When the rotary cam 58 rotates relative to the direction opposite to the predetermined direction and pushes against the swing operation member 56 in a reverse direction, the support for retracting the support shaft 60 in the swing operation member 56 is provided. U2 is formed.

すなわち、図３に示すように、支軸６０を揺動自在に支持するための支点部７３が、摺動部材２９の移動方向に沿って長尺となる長孔に形成されている。
例えば、支軸６０が位置固定状態で設けられている場合であれば、回転カム５８が所定方向（図３の符号Ａで示す方向）とは反対方向に相対回動して、小径案内部７０と大径案内部６９との間での段差部分７４にて揺動操作部材５６に対して逆向き（図３における右方向）に押し作用することがあると、支軸６０に無理な力が掛かり破損するおそれがある。
そこで、支点部７３を長孔に形成することで融通Ｕ２が構成され、支軸６０が退避することにより損傷を防止することができるように構成されている。 That is, as shown in FIG. 3, a fulcrum portion 73 for swingably supporting the support shaft 60 is formed in a long hole that is elongated along the moving direction of the sliding member 29.
For example, if the support shaft 60 is provided in a fixed position, the rotary cam 58 rotates relative to a direction opposite to a predetermined direction (a direction indicated by reference numeral A in FIG. 3), and the small diameter guide portion 70 is rotated. If the step 74 between the large diameter guide portion 69 and the large diameter guide portion 69 pushes against the swing operation member 56 in the opposite direction (right direction in FIG. 3), an excessive force is applied to the support shaft 60. There is a risk of breakage.
Therefore, the accommodation U2 is configured by forming the fulcrum portion 73 in a long hole, and the support shaft 60 is configured to be retracted to prevent damage.

図３に示すように、植付爪支持ケース１０の外方から内部に向けてグリスを注入するための注入用のグリスニップル７５、及び、植付爪支持ケース１０の内部から外方に向けてグリスを排出させるための排出用のグリスニップル７６が夫々、植付爪支持ケース１０に備えられている。   As shown in FIG. 3, a grease nipple 75 for injecting grease from the outside to the inside of the planting claw support case 10 and the inside of the planting claw support case 10 from the outside to the outside. Discharge grease nipples 76 for discharging grease are provided in the planting claw support case 10, respectively.

夫々のグリスニップル７５，７６は、周知の構成のものであり、グリスが流入する入口部７７には、小径の弁座７８に対してスプリング７９にて押圧付勢される状態で接当するボール８０が備えられ、このボール８０にスプリング７９の付勢力に抗して所定圧以上の圧力を掛けると、ボール８０が後退してグリスを注入させることができ、注入されたグリスが出口部８１から排出させることができるように構成されている。   Each of the grease nipples 75 and 76 has a well-known configuration, and a ball that contacts the inlet portion 77 into which the grease flows is pressed against the small-diameter valve seat 78 by a spring 79. 80, and when the ball 80 is subjected to a pressure equal to or higher than a predetermined pressure against the urging force of the spring 79, the ball 80 can be retracted to inject grease, and the injected grease is discharged from the outlet portion 81. It is comprised so that it can discharge.

注入用のグリスニップル７５が、植付爪支持ケース１０における苗植付爪８の突出方向とは反対側の端部、具体的には、図３に示すように、コイルバネ５７の一端側を受け止めるバネ受け部６４を形成する壁部に備えられ、且つ、グリス注入方向が苗押し出し具３１の苗押し作動方向に略沿う方向（図３の図面左方向）になる状態で備えられている。又、注入用のグリスニップル７５のグリル注入方向の先には爪先端側の摺動支持部３３ａが位置するように注入方向が設定されており、注入されるグリスが効率よく爪先端側の摺動支持部３３ａに供給されるように構成されている。   The injecting grease nipple 75 receives the end of the planting claw support case 10 opposite to the protruding direction of the seedling planting claw 8, specifically, one end of the coil spring 57 as shown in FIG. It is provided in the wall part which forms the spring receiving part 64, and it is provided in the state which the grease injection | pouring direction turns into the direction (drawing left direction of FIG. 3) which substantially follows the seedling pushing operation direction of the seedling pushing tool 31. In addition, the injection direction is set so that the sliding support portion 33a on the claw tip side is positioned at the tip of the grease nipple 75 for injection at the tip of the grill injection direction, and the injected grease efficiently slides on the claw tip side. It is comprised so that it may be supplied to the dynamic support part 33a.

又、排出用のグリスニップル７６は、植付爪支持ケース１０における苗植付爪８が固定取付けされる被装着部１９の近くに、ボルト２０の締結方向と同じ方向に沿って螺合する状態で取り付けられている。   The discharge grease nipple 76 is screwed in the same direction as the fastening direction of the bolt 20 near the mounted portion 19 to which the seedling planting claw 8 in the planting claw support case 10 is fixedly attached. It is attached with.

すなわち、図３及び図４に示すように、苗植付爪８は、植付爪支持ケース１０における被装着部１９に対して、摺動部材２９の摺動方向と略直交する方向に沿って螺合装着される２本のボルト２０により締め付け固定されている。そして、排出用のグリスニップル７６は、２本のボルト２０と共に一列に並ぶ状態で、且つ、先端側が植付爪支持ケース１０の内部空間に臨む状態で、ボルト２０の螺合装着方向と同じ方向に沿って植付爪支持ケース１０における被装着部１９に対して螺合装着されている。   That is, as shown in FIGS. 3 and 4, the seedling planting claw 8 is along the direction substantially perpendicular to the sliding direction of the sliding member 29 with respect to the mounted portion 19 in the planting claw support case 10. The two bolts 20 are screwed and fixed. The discharging grease nipple 76 is aligned with the two bolts 20 in a line, and the tip side faces the internal space of the planting claw support case 10, and is the same direction as the screwing mounting direction of the bolts 20. Is screwed to the mounted portion 19 of the planting claw support case 10 along the thread.

〔別実施形態〕
（１）上記実施形態では、注入用のグリスニップル７５が、植付爪支持ケース１０における苗植付爪８の突出方向とは反対側の端部に備えられ、グリス注入方向が苗押し出し具３１の苗押し作動方向に略沿う方向になる状態で備えられる構成としたが、このような構成に限らず、注入用のグリスニップル７５の設置位置を適宜変更して実施してもよい。 [Another embodiment]
(1) In the above embodiment, the grease nipple 75 for injection is provided at the end of the planting claw support case 10 opposite to the protruding direction of the seedling planting claw 8, and the grease injection direction is the seedling pushing tool 31. However, the present invention is not limited to such a configuration, and the installation position of the grease nipple 75 for injection may be changed as appropriate.

（２）上記実施形態では、排出用のグリスニップル７６が、植付爪支持ケース１０における苗植付爪８の取付け用のボルト２０の締結方向と同じ方向に沿って螺合する状態で取り付ける構成としたが、このような構成に限らず、排出用のグリスニップル７６の設置位置を適宜変更して実施してもよい。 (2) In the above-described embodiment, the grease nipple 76 for discharge is attached in a state of being screwed along the same direction as the fastening direction of the bolt 20 for attaching the seedling planting claw 8 in the planting claw support case 10. However, the present invention is not limited to such a configuration, and the installation position of the grease nipple 76 for discharging may be changed as appropriate.

（３）上記実施形態では、植付爪支持ケース１０に、フランジ部１５の外方側を覆う覆い部ｈが形成される構成としたが、このような覆い部ｈを備えない構成としてもよい。 (3) In the embodiment described above, the planting claw support case 10 has a configuration in which the cover portion h that covers the outer side of the flange portion 15 is formed. However, a configuration in which such a cover portion h is not provided may be employed. .

（４）上記実施形態では、乗用型田植機における苗植付機構について記載したが、歩行型田植機における苗植付機構に適用するものでもよい。 (4) Although the seedling planting mechanism in the riding type rice transplanter has been described in the above embodiment, it may be applied to the seedling planting mechanism in the walking type rice transplanter.

本発明は、苗植付機構を備えた乗用型田植機や歩行型田植機に適用できる。   The present invention can be applied to a riding type rice transplanter or a walking type rice transplanter provided with a seedling planting mechanism.

８ 苗植付爪
９ 回転ケース
１０ 植付爪支持ケース
１０Ａ ケース本体
１０Ｂ 蓋体
１４ 回動軸
１５ フランジ部
１９ 被装着部
２０ ボルト
２４ 開口
２８ シール部材
３１ 苗押し出し具
３２ 移動操作機構
７５ 注入用のグリスニップル
７６ 排出用のグリスニップル
ｈ 覆い部
Ｘ１ 第１横軸芯
Ｘ２ 第２横軸芯 8 Seedling Claw 9 Rotating Case 10 Planting Claw Support Case 10A Case Main Body 10B Cover Body 14 Rotating Shaft 15 Flange Part 19 Mounted Part 20 Bolt 24 Opening 28 Sealing Member 31 Seedling Extruder 32 Moving Operation Mechanism 75 For Injection Grease nipple 76 Grease nipple for discharge h Cover X1 First horizontal axis X2 Second horizontal axis

Claims (6)

苗植付爪から苗を押し出す苗押し出し具が、前記苗植付爪を支持する植付爪支持ケースの内部から外方に突出する状態で且つ摺動自在に前記植付爪支持ケースに支持され、
前記植付爪支持ケースの苗植え用の移動操作に伴って前記苗押し出し具を作用位置と非作用位置とに移動させる移動操作機構が、前記植付爪支持ケースの内部に備えられている田植機の苗植付機構であって、
前記植付爪支持ケースの外方から内部に向けてグリスを注入するための注入用のグリスニップル、及び、前記植付爪支持ケースの内部から外方に向けてグリスを排出させるための排出用のグリスニップルが夫々、前記植付爪支持ケースに備えられている田植機の苗植付機構。 A seedling pushing tool for pushing seedlings from seedling planting nails is supported by the planting nail support case in a state of projecting outward from the inside of the planting nail support case that supports the seedling planting nails and slidably. ,
A planting operation in which a moving operation mechanism for moving the seedling pusher between an operating position and a non-operating position in accordance with a moving operation for seedling planting of the planting claw support case is provided inside the planting claw support case. Machine seedling planting mechanism,
An injecting grease nipple for injecting grease from the outside to the inside of the planting claw support case, and a discharge for discharging the grease from the inside to the outside of the planting claw support case The seedling planting mechanism of the rice transplanter, wherein the grease nipples are respectively provided in the planting claw support case. 前記注入用のグリスニップルが、前記植付爪支持ケースにおける前記苗植付爪の突出方向とは反対側の端部に備えられている請求項１記載の田植機の苗植付機構。   The seedling planting mechanism of the rice transplanter according to claim 1, wherein the grease nipple for injection is provided at an end of the planting claw support case opposite to a protruding direction of the seedling planting claw. グリス注入方向が前記苗押し出し具の苗押し作動方向に略沿う方向になる状態で、前記注入用のグリスニップルが備えられている請求項１又は２記載の田植機の苗植付機構。   The seedling transplanting mechanism of the rice transplanter according to claim 1 or 2, wherein the grease nipple for injection is provided in a state in which the grease injection direction is substantially along the seedling pushing operation direction of the seedling pushing tool. 前記苗植付爪が、前記植付爪支持ケースにおける被装着部にボルトにて固定する状態で取り付けられ、
前記排出用のグリスニップルが、前記植付爪支持ケースにおける前記被装着部の近くに前記ボルトの締結方向と同じ方向に沿って螺合する状態で取り付けられている請求項１〜３のいずれか１項に記載の田植機の苗植付機構。 The seedling planting claw is attached in a state of being fixed with a bolt to a mounted portion in the planting claw support case,
The drain grease nipple is attached in a state of being screwed along the same direction as the fastening direction of the bolt near the mounted portion in the planting claw support case. The seedling planting mechanism of the rice transplanter as described in Item 1. 前記植付爪支持ケースが、開口が形成されたケース本体と前記開口を閉じる蓋体とをシール部材を介在させる状態で接続して構成されている請求項１〜４のいずれか１項に記載の田植機の苗植付機構。   The said planting nail support case is comprised by connecting the case main body in which opening was formed, and the cover body which closes the said opening in the state which interposes a sealing member, The structure of any one of Claims 1-4. Seedling planting mechanism of rice transplanter. 田植機本体から供給される動力により第１横軸芯周りで回転する回転ケースに、前記第１横軸芯とは異なる第２横軸芯軸芯周りで相対回動駆動される回動軸が支持され、
前記植付爪支持ケースが、前記回動軸に一体的に備えられたフランジ部に取り付けられて、前記回転ケースの前記第１横軸芯周りでの回転に伴って苗植え用の移動操作を実行するように構成され、
前記植付爪支持ケースに、前記フランジ部の外方側を覆う覆い部が形成されている請求項１〜５のいずれか１項に記載の田植機の苗植付機構。 The rotating case that rotates around the first horizontal axis by the power supplied from the rice transplanter body has a rotation axis that is driven to rotate relative to the second horizontal axis that is different from the first horizontal axis. Supported,
The planting claw support case is attached to a flange portion provided integrally with the rotating shaft, and a moving operation for seedling planting is performed as the rotating case rotates around the first horizontal axis. Configured to run,
The seedling planting mechanism of the rice transplanter according to any one of claims 1 to 5, wherein a cover portion that covers an outer side of the flange portion is formed on the planting claw support case.
JP2012069909A 2012-03-26 2012-03-26 Rice seedling planting mechanism Expired - Fee Related JP5722818B2 (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0595713A (en) * 1991-10-08 1993-04-20 Kubota Corp Seedling transplanting mechanism
WO2007029336A1 (en) * 2005-09-09 2007-03-15 Daido Kogyo Co., Ltd. Sealed chain with grease feeding device
JP2010124809A (en) * 2008-12-01 2010-06-10 Kubota Corp Rice transplanter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0595713A (en) * 1991-10-08 1993-04-20 Kubota Corp Seedling transplanting mechanism
WO2007029336A1 (en) * 2005-09-09 2007-03-15 Daido Kogyo Co., Ltd. Sealed chain with grease feeding device
JP2010124809A (en) * 2008-12-01 2010-06-10 Kubota Corp Rice transplanter

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