JP7012542B2 - Seedling planting device - Google Patents

Seedling planting device Download PDF

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JP7012542B2
JP7012542B2 JP2018008639A JP2018008639A JP7012542B2 JP 7012542 B2 JP7012542 B2 JP 7012542B2 JP 2018008639 A JP2018008639 A JP 2018008639A JP 2018008639 A JP2018008639 A JP 2018008639A JP 7012542 B2 JP7012542 B2 JP 7012542B2
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seedling
powder
granular material
planting
pedestal portion
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JP2019126272A (en
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晃次 濱田
善清 中川
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Kubota Corp
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Description

本発明は、複数の苗載置部を備える苗のせ台と、苗載置部のマット状苗を一株毎に取り出して圃場へ植え付ける苗植付機構と、苗のせ台の後部側箇所で、各苗列に沿って圃場へ粉粒体を供給する粉粒体供給装置と、が備えられた苗植付装置に関する。 The present invention comprises a seedling stand provided with a plurality of seedling rests, a seedling planting mechanism in which mat-shaped seedlings of the seedling rests are taken out for each strain and planted in a field, and a rear side portion of the seedling stand. The present invention relates to a seedling planting device provided with a powder / granular material supply device for supplying powder / granular material to a field along each seedling row.

上記のような苗植付装置としては、複数の苗載置部を備える苗のせ台と、苗載置部のマット状苗を一株毎に取り出して圃場へ植え付ける苗植付機構と、苗のせ台の後部側での中央部箇所に、圃場へ除草剤等の粉粒体を拡散供給する粉粒体供給装置(特許文献1では薬剤散布装置)と、を備えたものがある。
また、この苗植付装置では、8条植え用の苗のせ台において、6条分の苗を載置可能な主苗のせ台部分(特許文献1では主苗載せ台)と、2条分の苗を載置可能な端部側苗のせ台部分(特許文献1では副苗載せ台)を備えている。そして、端部側苗のせ台部分の苗載置部を、粉粒体供給装置の存在位置から外れた箇所で、平面視で主苗のせ台部分の苗載置部と重複させた折り畳み状態の格納姿勢へ姿勢変更可能に構成してある(例えば特許文献1参照)。
The seedling planting device as described above includes a seedling stand equipped with a plurality of seedling placing parts, a seedling planting mechanism in which mat-shaped seedlings in the seedling placing part are taken out one by one and planted in a field, and a seedling placing. There is a device equipped with a powder or granular material supply device (chemical spraying device in Patent Document 1) for diffusing and supplying powder or granular material such as a herbicide to a field at a central portion on the rear side of the table.
In addition, in this seedling planting device, in the seedling stand for 8-row planting, the main seedling stand portion (main seedling stand in Patent Document 1) on which 6-row seedlings can be placed and the 2-row seedling stand. It is provided with a stand portion for seedlings on the end side (sub-seedling stand in Patent Document 1) on which seedlings can be placed. Then, the seedling placement portion of the seedling stand portion on the end side is folded so as to overlap the seedling placement portion of the main seedling stand portion in a plan view at a position outside the position where the powder or granular material supply device exists. The posture can be changed to the retracted posture (see, for example, Patent Document 1).

また、別の苗植付装置としては、複数の苗載置部を備える苗のせ台と、苗載置部のマット状苗を一株毎に取り出して圃場へ植え付ける苗植付機構と、苗のせ台の後部側箇所で、各苗列に沿って圃場へ粉粒体を供給する粉粒体供給装置と、が備えられた苗植付装置と、を備えたものがある。この苗植付装置は、6条植え用の苗のせ台を備えたものであり、載置部を部分的に重複させて左右方向幅を狭めるような苗載置部の格納構造は備えていない(例えば特許文献2参照)。 In addition, as another seedling planting device, there is a seedling stand equipped with a plurality of seedling placement parts, a seedling planting mechanism in which mat-shaped seedlings in the seedling placement part are taken out for each strain and planted in a field, and seedling placement. At the rear part of the table, there is one equipped with a powder and granule supply device for supplying powder and granules to the field along each row of seedlings, and a seedling planting device equipped with. This seedling planting device is equipped with a seedling stand for 6-row planting, and does not have a storage structure for the seedling placement portion that partially overlaps the placement portions to narrow the width in the left-right direction. (See, for example, Patent Document 2).

特開2014-068571号公報(段落番号0027、0051、図1、5)Japanese Unexamined Patent Publication No. 2014-066571 (paragraph numbers 0027, 0051, FIGS. 1, 5) 特開2017-060419号公報(段落番号0035、0044、図1、2、4)JP-A-2017-060419 (paragraph numbers 0035, 0044, FIGS. 1, 2, 4)

特許文献1に記載のものでは、端部側苗のせ台部分の苗載置部を平面視で主苗のせ台部分の苗載置部と重複させた格納姿勢とすることができるので、苗植付装置を格納する場合や、運搬車両に搭載する際等に、苗のせ台をコンパクトな折り畳み状態に姿勢変更して収容面積を節減できる点で有用なものである。
しかし、この苗植付装置で採用されている粉粒体供給装置は、苗のせ台の後部側で左右方向の中央部箇所に備えた粉粒体供給装置が除草剤等の粉粒体を圃場へ拡散供給するものである。このため、粉粒体としては、圃場全体に散布供給する除草剤の散布に適したものであり、圃場に植え付けられた苗に対して直接的に薬効のある粉粒体を供給するには不向きなものである。
In the case described in Patent Document 1, the seedling placement portion of the end side seedling stand portion can be set to overlap with the seedling placement portion of the main seedling stand portion in a plan view, so that the seedling planting can be performed. It is useful in that the storage area can be reduced by changing the posture of the seedling stand to a compact folded state when storing the attachment device or mounting it on a transport vehicle.
However, in the powder or granular material supply device used in this seedling planting device, the powder or granular material supply device provided in the central part in the left-right direction on the rear side of the seedling stand is used to use the powder or granular material such as a herbicide in the field. It spreads and supplies to. Therefore, the powder or granular material is suitable for spraying the herbicide to be sprayed and supplied to the entire field, and is not suitable for directly supplying the seedlings planted in the field with medicinal properties. It is a thing.

特許文献2に記載のものでは、粉粒体供給装置として、苗のせ台の後部側箇所で、各苗列に沿って圃場へ粉粒体を供給する構造のものが採用されているので、圃場に植え付けられた苗に対して直接的に薬効のある粉粒体を供給することができる点で有用なものである。
しかしながらこの苗植付装置では、苗のせ台が苗載置部の全体を一体に構成した6条植え用のものであり、端部側苗のせ台部分と主苗のせ台部分とに分離可能に構成されたものではなく、分離させた端部側苗のせ台部分の苗載置部を平面視で主苗のせ台部分の苗載置部と重複させて折り畳み状態とすることに関する記載もない。
このような各苗列に沿って圃場へ粉粒体を供給する構造の粉粒体供給装置は、仮に、8条植え用などの大型で、端部側苗のせ台部分と主苗のせ台部分とに分離可能な苗のせ台に適用しようとしても、薬剤ホッパーや、その薬剤ホッパーを支持する支持フレームが重複予定箇所に存在しているので、分離させた端部側苗のせ台部分の苗載置部を平面視で主苗のせ台部分の苗載置部と重複させた折り畳み状態の格納姿勢とすることができない。このため、各苗列に沿って圃場へ粉粒体を供給する構造の粉粒体供給装置は、折り畳み構造の必要がない比較的小型の苗のせ台に適用すべきものと認識されていた。
In the device described in Patent Document 2, as the powder / granular material supply device, a device having a structure in which the powder / granular material is supplied to the field along each row of seedlings at the rear side of the seedling stand is adopted. It is useful in that it can directly supply medicinal powders and granules to seedlings planted in.
However, in this seedling planting device, the seedling stand is for 6-row planting in which the entire seedling placement part is integrally configured, and it can be separated into the end side seedling stand part and the main seedling stand part. There is no description about the fact that the seedling placement portion of the separated end-side seedling stand portion is overlapped with the seedling placement portion of the main seedling stand portion in a plan view so as to be in a folded state.
The powder or granular material supply device having a structure that supplies the powder or granular material to the field along each row of seedlings is tentatively large, such as for 8-row planting, and the end side seedling pedestal portion and the main seedling pedestal portion. Even if you try to apply it to a seedling stand that can be separated, the drug hopper and the support frame that supports the drug hopper exist at the planned overlap, so the seedlings on the separated end side seedling stand are placed. It is not possible to have the storage position in a folded state in which the placement part overlaps with the seedling placement part of the main seedling resting part in a plan view. Therefore, it has been recognized that a powder or granular material supply device having a structure for supplying powder or granular material to a field along each row of seedlings should be applied to a relatively small seedling stand that does not require a folding structure.

本発明は、各苗列に沿って圃場へ粉粒体を供給する構造の粉粒体供給装置を採用しながらも、分離可能な苗のせ台部分同士の重複による折り畳みを可能にして、苗のせ台の左右方向幅を縮小し得る苗植付装置を提供しようとするものである。 The present invention employs a powder / granular material supply device having a structure for supplying powder / granular material to a field along each row of seedlings, but enables folding due to overlapping of separable seedling pedestals to place seedlings. It is intended to provide a seedling planting device capable of reducing the width of the table in the left-right direction.

上記目的を達成するための本発明による苗植付装置は、マット状苗を載置可能な複数の苗載置部を備える苗のせ台と、前記苗載置部のマット状苗を一株毎に取り出して圃場へ植え付ける苗植付機構と、前記苗のせ台の後部側箇所で、各苗列に沿って圃場へ粉粒体を供給する粉粒体供給装置と、が備えられた苗植付装置であって、前記苗のせ台が、複数の前記苗載置部を備える主苗のせ台部分と、その主苗のせ台部分の左右方向での横側端部に対して連結及び連結解除可能な端部側苗のせ台部分と、の組み合わせによって構成されているとともに、前記端部側苗のせ台部分が前記主苗のせ台部分の横側端部に連結されて一連の苗載置面を構成する作業姿勢連結状態と、前記端部側苗のせ台部分が平面視で前記主苗のせ台部分側の苗載置面の上側に重なるように支持された格納支持状態と、に前記主苗のせ台部分に対する前記端部側苗のせ台部分の姿勢が切換可能に構成され、前記粉粒体供給装置に、各苗載置部に対応する苗列毎に粉粒体を供給する複数の粉粒体タンクと、前記苗のせ台が装備されている植付機枠部に対して前記粉粒体タンクを支持させる複数のタンク支持部材と、が備えられ、複数の前記タンク支持部材の上端部に、前記粉粒体タンクを支持する支持体が連結され、前記苗のせ台の横移動方向で互いに隣り合う位置の前記支持体同士が、連結及び連結解除可能に構成され、前記端部側苗のせ台部分と、その端部側苗のせ台部分が重なる位置の前記主苗のせ台部分と、に対応して備えられた前記粉粒体タンク及び前記タンク支持部材が、前記植付機枠部から離脱して前記重なる位置から退避可能に構成されている点に特徴がある。 The seedling planting apparatus according to the present invention for achieving the above object has a seedling stand provided with a plurality of seedling placing portions capable of placing mat-shaped seedlings, and a mat-shaped seedling in the seedling placing portion for each strain. Seedling planting equipped with a seedling planting mechanism for taking out and planting in the field, and a powder or granular material supply device for supplying powder or granular material to the field along each row of seedlings at the rear side of the seedling stand. In the device, the seedling pedestal can be connected to and disconnected from the main seedling pedestal portion having a plurality of the seedling placing portions and the lateral end portion of the main seedling pedestal portion in the left-right direction. It is composed of a combination of a seedling stand portion on the end side, and the end side seedling stand portion is connected to the lateral end portion of the main seedling stand portion to form a series of seedling mounting surfaces. The main seedlings are connected to the working postures to be configured, and the storage support state in which the end side seedling pedestal portion is supported so as to overlap the upper side of the seedling mounting surface on the main seedling pedestal portion side in a plan view. A plurality of powders are configured so that the posture of the seedling stand portion on the end side with respect to the mounting portion can be switched, and the powder or granular material is supplied to the powder or granular material supply device for each seedling row corresponding to each seedling placing portion. A granule tank and a plurality of tank support members for supporting the powder or granular material tank with respect to the planting machine frame portion equipped with the seedling stand are provided, and the upper end portions of the plurality of tank support members are provided. Supports for supporting the powder or granular material tank are connected to the support, and the supports at positions adjacent to each other in the lateral movement direction of the seedling stand are configured to be connectable and disconnectable, and the end side seedlings are connected to each other. The powder or granular material tank and the tank support member provided corresponding to the mounting table portion and the mounting table portion of the main seedling at the position where the mounting table portion on the end side thereof overlap are the planting machine frame portion. It is characterized in that it is configured so that it can be retracted from the overlapping position by being separated from the above position.

本発明によれば、粉粒体を圃場へ拡散供給するのではなく、各苗列に沿って圃場へ粉粒体を供給する粉粒体供給装置を備えて、植え付けられた苗に対して直接的に薬効のある粉粒体を供給することができる。
それでいて、各苗載置部に対応する苗列毎に粉粒体を供給する複数の粉粒体タンクと、苗のせ台が装備されている植付機枠部に対して粉粒体タンクを支持させる複数のタンク支持部材と、が備えられ、粉粒体タンク及びタンク支持部材が、(前記植付機枠部から離脱して)苗のせ台部分同士の重なる位置から退避可能に構成されているので、これらのタンク支持部材や粉粒体タンクによる制限をうけることなく、主苗のせ台部分の左右方向での横側端部に対して端部側苗のせ台部分を重複させた状態に折り畳むことができ、苗のせ台の左右方向長さを縮小した状態で、格納又は運搬することができる。
According to the present invention, a powder or granular material supply device for supplying powder or granular material to the field along each row of seedlings, instead of diffusing and supplying the powder or granular material to the field, is provided and directly to the planted seedlings. It is possible to supply powders and granules having medicinal properties.
Nevertheless, it supports a plurality of powder or granular material tanks that supply powder or granular material for each seedling row corresponding to each seedling placement part, and a powder or granular material tank for the planting machine frame that is equipped with a seedling stand. A plurality of tank support members to be provided are provided, and the powder or granular material tank and the tank support member are configured to be retractable from the overlapping positions of the seedling pedestals (separated from the planting machine frame portion). Therefore, without being restricted by these tank support members and powder / granular material tanks, the end side seedling pedestal portion is folded so as to overlap with the lateral end portion in the left-right direction of the main seedling pedestal portion. It can be stored or transported in a state where the length of the seedling stand in the left-right direction is reduced.

上記構成において、前記端部側苗のせ台部分と、その端部側苗のせ台部分が重なる位置の前記主苗のせ台部分と、に対応して備えられた前記タンク支持部材に、前記苗のせ台から後方側へ離れる方向へ延出された後向きフレーム部と、前記後向きフレーム部の後端部から前方斜め上方へ延出された上向きフレーム部と、が備えられ、前記タンク支持部材に、当該タンク支持部材を前記植付機枠部側と、前記粉粒体タンク側と、に分離可能な脱着部が備えられると好適である。 In the above configuration, the seedlings are placed on the tank support member provided corresponding to the end-side seedling pedestal portion and the main seedling pedestal portion at a position where the end-side seedling pedestal portion overlaps. A rearward frame portion extending in a direction away from the table to the rear side and an upward frame portion extending diagonally forward and upward from the rear end portion of the rearward frame portion are provided, and the tank support member is provided with the upward frame portion. It is preferable that the tank support member is provided with a detachable portion that can be separated into the planting machine frame portion side and the powder or granular material tank side.

本構成によれば、端部側苗のせ台部分と、その端部側苗のせ台部分が重なる位置の主苗のせ台部分に設けられるタンク支持部材は、単に上方側へ延出されたものではなく、一旦、苗のせ台から後方側へ離れる方向へ延出された後向きフレーム部を備え、その後向きフレーム部の後端部から前方斜め上方へ延出された上向きフレーム部を備えている。
このように、タンク支持部材が後向きフレーム部を備え、その後向きフレーム部の後端部から前方斜め上方へ延出されているのは、次の理由による。
植付機枠部から単に上方側へ向けてタンク支持部材を立ち上げた構造のものでは、主苗のせ台部分の上側に端部側苗のせ台部分を重ねる際に、端部側苗のせ台部分の重なり箇所にタンク支持部材が干渉するので、タンク支持部材を全体的に取り外す必要があるが、本構成のものでは、その必要がない。
つまり、苗のせ台から後方側へ離れる方向へ延出された後向きフレーム部は、主苗のせ台部分の上側に重ねられた状態の端部側苗のせ台部分との干渉を避けた位置にある。そして、後向きフレーム部の後端部から前方斜め上方へ延出される上向きフレーム部においても、その下部付近であれば、主苗のせ台部分の上側に重ねられた状態の端部側苗のせ台部分との干渉を避けた箇所に位置させ易い。
したがって、タンク支持部材のうちで、主苗のせ台部分の上側に重ねられる端部側苗のせ台部分と干渉しない部位の後向きフレーム部等は植付機枠部側に残し、主苗のせ台部分の上側に重ねられる端部側苗のせ台部分と干渉する部位のタンク支持部材を脱着可能であるように脱着部を設けることで、脱着部では、植付機枠部側への連結構造等は省くことができ、脱着部の構造の簡素化を図ることができる。
そして、脱着部の位置も、植付機枠部とタンク支持部材との連結箇所のような、奥まった箇所に設ける必要がないので、脱着操作を行い易いタンク支持部材上の適所を選んで脱着部を設けることができ、脱着作業も行い易くなる。
According to this configuration, the tank support member provided on the main seedling pedestal portion at the position where the end side seedling pedestal portion and the end side seedling pedestal portion overlap is not simply extended upward. Instead, it is provided with a rearward frame portion that is once extended in a direction away from the seedling stand to the rear side, and is provided with an upward frame portion that extends diagonally forward and upward from the rear end portion of the rearward facing frame portion.
As described above, the tank support member includes the rear facing frame portion and extends diagonally forward and upward from the rear end portion of the rear facing frame portion for the following reason.
In the case of a structure in which the tank support member is simply raised upward from the planting machine frame, when the end-side seedling pedestal is placed on the upper side of the main sapling pedestal, the end-side seedling pedestal is placed. Since the tank support member interferes with the overlapping portion of the portions, it is necessary to remove the tank support member as a whole, but this is not necessary in the case of this configuration.
That is, the rearward frame portion extending in the direction away from the seedling pedestal is in a position avoiding interference with the end-side seedling pedestal portion in a state of being overlapped on the upper side of the main seedling pedestal portion. .. Further, even in the upward frame portion extending diagonally forward and upward from the rear end portion of the rearward frame portion, if it is near the lower portion thereof, the end side seedling pedestal portion in a state of being overlapped on the upper side of the main seedling pedestal portion. It is easy to position it in a place that avoids interference with.
Therefore, among the tank support members, the rearward frame portion and the like of the portion that does not interfere with the end side seedling pedestal portion that is overlapped on the upper side of the main seedling pedestal portion are left on the planting machine frame portion side, and the main seedling pedestal portion. By providing a detachable part so that the tank support member at the part that interferes with the stand part on the end side that is overlapped on the upper side of the plant can be attached and detached, the detachable part can be connected to the planting machine frame side, etc. It can be omitted, and the structure of the detachable part can be simplified.
And since it is not necessary to provide the position of the attachment / detachment part in a deep place such as the connection part between the planting machine frame part and the tank support member, the attachment / detachment portion is selected and attached at an appropriate position on the tank support member which is easy to perform the attachment / detachment operation. A portion can be provided, which facilitates attachment / detachment work.

上記構成において、前記苗植付機構と前記粉粒体タンクとの間に、前記苗植付機構側から前記粉粒体タンク側への泥土の飛散を制限する泥除けカバーが設けられ、前記後向きフレーム部が前記泥除けカバーの下側を通って前記泥除けカバーの後端よりも後方側へ延出されていると好適である。 In the above configuration, a mudguard cover for limiting the scattering of mud from the seedling planting mechanism side to the powder or granular material tank side is provided between the seedling planting mechanism and the powder or granular material tank, and the rearward frame is provided. It is preferable that the portion extends behind the rear end of the mudguard cover through the underside of the mudguard cover.

本構成によれば、泥除けカバーの存在による影響を受けることなく、より一層簡単な作業でタンク支持部材と粉粒体タンクの脱着操作を行うことができる。 According to this configuration, the tank support member and the powder / granular material tank can be attached / detached with a simpler operation without being affected by the presence of the mudguard cover.

上記構成において、前記脱着部は、前記後向きフレーム部よりも上方側の前記上向きフレーム部に設けられていると好適である。 In the above configuration, it is preferable that the detachable portion is provided on the upward frame portion on the upper side of the rearward frame portion.

本構成によれば、上向きフレーム部に脱着部が設けられているので、目視し易く、かつ広い作業空間で、タンク支持部材と粉粒体タンクの脱着操作を、さらに簡便に行い易い。 According to this configuration, since the attachment / detachment portion is provided on the upward frame portion, it is easy to visually recognize and it is easier to perform the attachment / detachment operation of the tank support member and the powder / granular material tank in a wide work space.

上記構成において、前記脱着部に、前記後向きフレーム部と一体に構成された筒状部と、前記粉粒体タンク側に一体連結された棒状部と、が備えられ、かつ、前記筒状部に対する前記棒状部の挿入状態で、前記棒状部の抜け出しを規制するパッチン錠式の留め金具が備えられていると好適である。 In the above configuration, the detachable portion is provided with a tubular portion integrally configured with the rearward frame portion and a rod-shaped portion integrally connected to the powder or granular material tank side, and with respect to the tubular portion. It is preferable that a snap lock type fastener is provided to prevent the rod-shaped portion from coming off when the rod-shaped portion is inserted.

本構成によれば、後向きフレーム部と一体に構成された筒状部に、粉粒体タンク側に一体連結された棒状部を挿入することで水平方向での揺れ等の外力に抗して強固に固定することができる。これによって、外力の影響が少ない上下方向では、構造及び操作の簡単なパッチン錠式の留め金具でしっかりと固定することができる。 According to this configuration, by inserting a rod-shaped portion integrally connected to the powder / granular material tank side into the tubular portion integrally configured with the rearward frame portion, it is strong against external forces such as horizontal shaking. Can be fixed to. As a result, in the vertical direction where the influence of external force is small, it can be firmly fixed with a snap lock type fastener having a simple structure and operation.

上記構成において、前記支持体同士が、ノブボルトを介して連結及び連結解除可能に構成されていると好適である。 In the above configuration, it is preferable that the supports are configured to be connected and disconnected via a knob bolt.

本構成によれば、粉粒体タンクを支持する支持体同士を連結及び連結解除可能であるように構成することにより、互いに隣り合う位置の粉粒体タンク及び支持体を個別にも同時的にも取り扱うことができる。したがって、分離して軽くすることにより扱い易くしたり、連結して位置決め状態での調整を行ったりする等、作業形態に応じて便利な状況を選択することができる。
また、その支持体同士の連結及び連結解除はノブボルトを用いて行えるので、特別な工具を用意する必要もなく、人為操作によって簡便に行い易いものである。
According to this configuration, by configuring the supports that support the powder or granular material tank to be connected and disconnected from each other, the powder or granular material tank and the support at positions adjacent to each other can be individually and simultaneously simultaneously. Can also be handled. Therefore, it is possible to select a convenient situation according to the work mode, such as making it easier to handle by separating and making it lighter, or making adjustments in a positioned state by connecting them.
Further, since the supports can be connected and disconnected by using a knob bolt, it is not necessary to prepare a special tool and it is easy to perform by human operation.

本発明の苗植付装置を適用した乗用型田植機の全体側面図である。It is an overall side view of the passenger type rice transplanter to which the seedling planting apparatus of this invention was applied. 苗植付装置の苗のせ台及び薬剤供給装置を示す平面図である。It is a top view which shows the seedling stand of the seedling planting apparatus and the medicine supply apparatus. 苗植付装置における苗のせ台の折り畳み状態を示す平面図である。It is a top view which shows the folded state of the seedling stand in a seedling planting apparatus. 苗植付装置を示す左側面図である。It is a left side view which shows the seedling planting apparatus. 苗植付装置における苗のせ台の折り畳み状態を示す左側面図である。It is a left side view which shows the folded state of the seedling stand in the seedling planting apparatus. 苗植付装置における薬剤供給装置を示す背面図である。It is a rear view which shows the drug supply device in the seedling planting device. 薬剤供給装置における分解状態を示す説明図である。It is explanatory drawing which shows the decomposition state in a drug supply apparatus. 主苗のせ台部分における脱着不能な薬剤供給装置の保持構造を示す側面図である。It is a side view which shows the holding structure of the non-detachable drug supply device in the pedestal part of a main seedling. 端部側苗のせ台部分における脱着可能な薬剤供給装置の保持構造を示す側面図である。It is a side view which shows the holding structure of the removable medicine supply device in the resting place part of the end side seedling. 端部側苗のせ台部分における脱着可能な薬剤供給装置の保持構造の分解状態を示す側面図である。It is a side view which shows the disassembled state of the holding structure of the removable medicine supply device in the pedestal part of the end side seedling. 分解された端部側苗のせ台部分における動力伝達用の操作ロッドの仮留め状態を示す側面図である。It is a side view which shows the temporary fixing state of the operation rod for power transmission in the disassembled end side seedling resting part.

以下、本発明の実施の形態の一例を図面の記載に基づいて説明する。
実施の形態における前後方向及び左右方向は、特段の説明がない限り、以下のように記載している。図1及び図2に示すように、乗用型田植機の作業走行時における前進側の進行方向が「前方F」であり、後進側の進行方向が「後方B」である。そして前後方向での前向き姿勢を基準として右側に相当する方向が「右方R」であり、左側に相当する方向が「左方L」である。
Hereinafter, an example of the embodiment of the present invention will be described based on the description in the drawings.
Unless otherwise specified, the front-rear direction and the left-right direction in the embodiment are described as follows. As shown in FIGS. 1 and 2, the traveling direction on the forward side is "forward F" and the traveling direction on the backward side is "rearward B" during the work traveling of the passenger-type rice transplanter. The direction corresponding to the right side is "Right R" and the direction corresponding to the left side is "Left L" with respect to the forward posture in the front-back direction.

〔乗用型田植機〕
図1に、本発明の苗植付装置2を適用した乗用型田植機が示されている。
この乗用型田植機は、走行車体1の骨格となる車体フレーム10の前部にエンジン11が搭載されている。エンジン11の動力は、主変速装置として備えた静油圧式無段変速装置(図示せず)、及び、トランスミッションケース12に内蔵した副変速装置としてのギア式変速装置(図示せず)、などを介して左右の前輪1F及び左右の後輪1Rに伝達され、4輪駆動型に構成されている。
[Passenger rice transplanter]
FIG. 1 shows a passenger-type rice transplanter to which the seedling planting device 2 of the present invention is applied.
In this passenger-type rice transplanter, the engine 11 is mounted on the front portion of the vehicle body frame 10 which is the skeleton of the traveling vehicle body 1. The power of the engine 11 includes a hydrostatic continuously variable transmission (not shown) provided as a main transmission, a gear transmission as an auxiliary transmission built in the transmission case 12 (not shown), and the like. It is transmitted to the left and right front wheels 1F and the left and right rear wheels 1R via the four-wheel drive type.

エンジン11が搭載された車体フレーム10上に搭乗部ステップ13が設けられている。この搭乗部ステップ13上には、エンジン11を内装するエンジンボンネット11a、前輪操舵用のステアリングホイール14、及び運転座席15などが配備されている。搭乗部ステップ13のうち、運転座席15の後方側で一段高く形成された部位に、施肥装置16が設けられている。 A boarding section step 13 is provided on the vehicle body frame 10 on which the engine 11 is mounted. An engine bonnet 11a for incorporating the engine 11, a steering wheel 14 for steering the front wheels, a driver's seat 15, and the like are deployed on the boarding section step 13. The fertilizer application device 16 is provided at a portion of the boarding section step 13 formed higher on the rear side of the driver's seat 15.

走行車体1の後部に、油圧式の昇降シリンダ19の作動で上下揺動するようにリンク機構18が連結されている。このリンク機構18の後端下部に、8条用の苗植付装置2を前後方向の揺動軸心回りでローリング可能に連結している。
エンジン11の動力は、前記静油圧式無段変速装置、トランスミッションケース12内に備えられた株間変速装置(図示せず)、植付クラッチ(図示せず)、及びPTO軸17を介して、施肥装置16の肥料繰り出し部16b、及び苗植付装置2にも伝達されている。
A link mechanism 18 is connected to the rear portion of the traveling vehicle body 1 so as to swing up and down by the operation of the hydraulic elevating cylinder 19. A seedling planting device 2 for 8 rows is connected to the lower part of the rear end of the link mechanism 18 so as to be rollable around the swing axis in the front-rear direction.
The power of the engine 11 is fertilized via the hydrostatic continuously variable transmission, the interstock transmission (not shown) provided in the transmission case 12, the planting clutch (not shown), and the PTO shaft 17. It is also transmitted to the fertilizer feeding portion 16b of the device 16 and the seedling planting device 2.

施肥装置16は、粉粒体状の肥料を貯留する肥料ホッパー16aと、肥料ホッパー16aの下部に連結された4個の肥料繰り出し部16bと、肥料繰り出し部16bから繰り出された肥料を搬送風に乗せて搬送するためのブロワ16cと、を備えている。各肥料繰り出し部16bには2本ずつ施肥ホース16dが接続されている。したがって、肥料繰り出し部16bから繰り出された肥料は、ブロワ16cから供給される搬送風に乗って、施肥ホース16dに送り込まれる。施肥ホース16dの他端側は、苗植付装置2の後述する整地フロート32に備えた作溝器39に接続され、作溝器39によって圃場に形成された施肥溝へ肥料が供給されるようにしてある。
ブロワ16cは電動モータ(図示せず)で駆動され、搭乗部ステップ13の下側を通ってエンジン11の付近に延出されたダクト(図示せず)を介して、エンジン11付近の高温の空気を吸引する。
The fertilizer application device 16 uses a fertilizer hopper 16a for storing powdery fertilizer, four fertilizer feeding portions 16b connected to the lower part of the fertilizer hopper 16a, and fertilizer fed from the fertilizer feeding section 16b as a transport wind. It is equipped with a blower 16c for carrying the fertilizer. Two fertilizer application hoses 16d are connected to each fertilizer feeding portion 16b. Therefore, the fertilizer delivered from the fertilizer feeding section 16b is sent to the fertilizer application hose 16d on the transport wind supplied from the blower 16c. The other end of the fertilizer application hose 16d is connected to a groove making device 39 provided in the ground leveling float 32 described later of the seedling planting device 2, so that fertilizer is supplied to the fertilizer application groove formed in the field by the groove making device 39. It is set to.
The blower 16c is driven by an electric motor (not shown) and has high temperature air near the engine 11 through a duct (not shown) that extends under the boarding section step 13 to the vicinity of the engine 11. Aspirate.

〔苗植付装置〕
苗植付装置2は次のように構成されている。
図2,3,4に示すように、苗植付装置2は、マット状苗を載置可能な複数の苗載置部20aを備えるとともに、左右に往復駆動可能に構成された苗のせ台20を備えている。
苗のせ台20はリンク機構18に連結された植付機枠部30に支持されている。植付機枠部30には、苗のせ台20の下部から苗を取り出して田面に植え付ける苗植付機構31が設けられている。
苗のせ台20の後部側箇所に、圃場に植え付けられた各苗列に沿って圃場へ薬剤(粉粒体に相当する)を供給する薬剤供給装置4(粉粒体供給装置に相当する)が設けられている。植付機枠部30の下部には、田表面を滑走する整地用の4つの整地フロート32が設けられている。この整地フロート32の8箇所に作溝器39を設けてあり、作溝器39によって、苗植付箇所の横側部における圃場に施肥溝を形成するようにしてある。
苗植付装置2は、これらの苗のせ台20、植付機枠部30、苗植付機構31、整地フロート32、及び薬剤供給装置4を備えている。
[Seedling planting device]
The seedling planting device 2 is configured as follows.
As shown in FIGS. 2, 3 and 4, the seedling planting device 2 includes a plurality of seedling placing portions 20a on which mat-shaped seedlings can be placed, and is configured to be reciprocally driveable to the left and right. It is equipped with.
The seedling stand 20 is supported by the planting machine frame portion 30 connected to the link mechanism 18. The planting machine frame portion 30 is provided with a seedling planting mechanism 31 for taking out seedlings from the lower part of the seedling stand 20 and planting them on the surface of the rice field.
At the rear side of the seedling stand 20, there is a drug supply device 4 (corresponding to a powder or granular material supply device) that supplies a drug (corresponding to a powder or granular material) to the field along each row of seedlings planted in the field. It is provided. At the lower part of the planting machine frame portion 30, four leveling floats 32 for leveling that slide on the surface of the rice field are provided. Grooving devices 39 are provided at eight locations on the ground leveling float 32, and the grooving devices 39 are used to form fertilization grooves in the field on the lateral side of the seedling planting site.
The seedling planting device 2 includes a seedling stand 20, a planting machine frame portion 30, a seedling planting mechanism 31, a ground leveling float 32, and a chemical supply device 4.

〔苗のせ台〕
苗植付装置2が備える苗のせ台20は、図2及び図3に示すように、複数の苗載置部20aを備える主苗のせ台部分21と、その主苗のせ台部分の左右方向での横側端部に対して連結及び連結解除可能な端部側苗のせ台部分22と、の組み合わせによって構成されている。具体的には、右側の主苗のせ台部分21が苗載置面を6条分の苗載置部20aに区画形成され、左側の端部側苗のせ台部分22が2条分の苗載置部20aに区画形成され、左右に2分割可能に構成されている。
そして、苗のせ台20は、端部側苗のせ台部分22が主苗のせ台部分21の横側端部に連結されて一連の苗載置面を構成する作業姿勢連結状態と、端部側苗のせ台部分22が平面視で主苗のせ台部分21側の苗載置面の上側に重なるように支持された格納支持状態と、に主苗のせ台部分21に対する端部側苗のせ台部分22の姿勢が切換可能に構成されている。
[Seedling stand]
As shown in FIGS. 2 and 3, the seedling pedestal 20 provided in the seedling planting apparatus 2 is a main seedling pedestal portion 21 having a plurality of seedling placing portions 20a and the main seedling pedestal portion 21 in the left-right direction. It is composed of a combination of an end-side seedling pedestal portion 22 that can be connected to and disconnected from the lateral end portion of the above. Specifically, the main seedling pedestal portion 21 on the right side is formed by partitioning the seedling placing surface into the seedling placing portion 20a for 6 rows, and the seedling pedestal portion 22 on the left end side is used for placing 2 rows of seedlings. It is divided into two sections on the left and right sides of the placement portion 20a.
Then, the seedling pedestal 20 has a working posture connected state in which the end side seedling pedestal portion 22 is connected to the lateral end portion of the main seedling pedestal portion 21 to form a series of seedling mounting surfaces, and the end side. The storage support state in which the seedling pedestal portion 22 is supported so as to overlap the upper side of the seedling mounting surface on the main seedling pedestal portion 21 side in a plan view, and the end side seedling pedestal portion with respect to the main seedling pedestal portion 21. The postures of 22 are configured to be switchable.

主苗のせ台部分21と端部側苗のせ台部分22とは、連結支持装置23を介して連結されている。
図4及び図5に示すように、連結支持装置23は、左右向き姿勢で主苗のせ台部分21の背面側に固定されたチャンネル状の断面形状を有したスライド案内部24と、そのスライド案内部24に対して左右方向で相対移動可能に支持された支持腕25とを備えている。この支持腕25において、スライド案内部24から露出した側の端部が端部側苗のせ台部分22の背面側に連結されている。
そして支持腕25は、左右移動方向の中間位置に備えた揺動軸心p1回りで、スライド案内部24から露出した側が揺動して屈折可能であるように構成されている。つまり、支持腕25は、支持腕25の全体がスライド案内部24の延長方向に沿う伸展姿勢と、スライド案内部24から露出する部分がスライド案内部24の延長方向に交差して、主苗のせ台部分21の表面側へ向けて起立した屈折姿勢と、に姿勢変更可能に構成されている。
The main seedling pedestal portion 21 and the end side seedling pedestal portion 22 are connected via a connection support device 23.
As shown in FIGS. 4 and 5, the connection support device 23 has a slide guide portion 24 having a channel-shaped cross-sectional shape fixed to the back side of the main seedling pedestal portion 21 in a left-right orientation posture, and a slide guide thereof. It is provided with a support arm 25 that is supported so as to be relatively movable in the left-right direction with respect to the portion 24. In this support arm 25, the end portion on the side exposed from the slide guide portion 24 is connected to the back surface side of the end portion side seedling pedestal portion 22.
The support arm 25 is configured so that the side exposed from the slide guide portion 24 swings and can be refracted around the swing axis p1 provided at the intermediate position in the left-right movement direction. That is, in the support arm 25, the entire support arm 25 is in an extended posture along the extension direction of the slide guide portion 24, and the portion exposed from the slide guide portion 24 intersects with the extension direction of the slide guide portion 24, so that the main seedling is placed on the support arm 25. The posture can be changed to a bending posture that stands up toward the surface side of the base portion 21.

苗のせ台20が上側に装備される植付機枠部30は、PTO軸17からのエンジン動力が入力されるフィードケース33、フィードケース33から左右横外方へ向けて延出された角パイプ状の主支持部材34、主支持部材34から後方側へ向けて延出された4本の植付伝動ケース35、を備えている。
苗植付機構31は、フィードケース33から分配された動力を受けて回転駆動される左右一対の回転ケース36を、各植付伝動ケース35の後部に設け、その回転ケース36に備えた植付爪36aで、苗のせ台20上の苗を掻き取って田面へ植え付けるように構成されている。
植付機枠部30の前部には、苗のせ台20の裏面側(前側)で苗のせ台20を左右に往復横送り駆動機構37、及び苗のせ台20の裏面側を支持して左右横移動を案内するガイド枠38が設けられている。
The planting machine frame portion 30 equipped with the seedling stand 20 on the upper side is a feed case 33 into which engine power from the PTO shaft 17 is input, and a square pipe extending laterally outward from the feed case 33. It is provided with a main support member 34 having a shape, and four planting transmission cases 35 extending rearward from the main support member 34.
The seedling planting mechanism 31 provides a pair of left and right rotating cases 36, which are rotationally driven by receiving the power distributed from the feed case 33, at the rear of each planting transmission case 35, and is provided with the rotating case 36 for planting. The claws 36a are configured to scrape the seedlings on the seedling stand 20 and plant them on the surface of the rice field.
On the front side of the planting machine frame portion 30, the seedling stand 20 is reciprocated laterally forward to the left and right on the back side (front side) of the seedling stand 20, and the back side of the seedling stand 20 is supported on the left and right. A guide frame 38 for guiding lateral movement is provided.

図2及び図4は、苗のせ台20の8条分の苗載置部20aが一連に連なる作業姿勢連結状態を示している。この状態では、連結支持装置23における支持腕25の全体がスライド案内部24の延長方向に沿う伸展姿勢になっている。
図3及び図5は、端部側苗のせ台部分22が平面視で主苗のせ台部分21側の苗載置部20aの上側に重なるように支持された格納支持状態を示している。この状態では、スライド案内部24から露出する部分の支持腕25が、スライド案内部24の延長方向に交差して、主苗のせ台部分21の表面側へ向けて起立した屈折姿勢となっている。この格納支持状態において、端部側苗のせ台部分22の下端側は、主苗のせ台部分21側の苗載置部20aの上側に向けて立設されている下端支持部材26に連結支持されている。
2 and 4 show a working posture connected state in which eight seedling placing portions 20a of the seedling stand 20 are connected in a series. In this state, the entire support arm 25 in the connection support device 23 is in an extended posture along the extension direction of the slide guide portion 24.
3 and 5 show a stored and supported state in which the end-side seedling pedestal portion 22 is supported so as to overlap the upper side of the seedling laying portion 20a on the main seedling pedestal portion 21 side in a plan view. In this state, the support arm 25 of the portion exposed from the slide guide portion 24 intersects in the extension direction of the slide guide portion 24 and is in a bending posture standing up toward the surface side of the main seedling rest portion 21. .. In this stored and supported state, the lower end side of the end side seedling pedestal portion 22 is connected and supported by the lower end support member 26 erected toward the upper side of the seedling placing portion 20a on the main seedling pedestal portion 21 side. ing.

〔薬剤供給装置〕
苗植付装置2が備える薬剤供給装置4は、各苗列に沿って圃場へ薬剤を供給するように、苗のせ台20の後部側箇所に設けられている。
薬剤供給装置4のそれぞれは、薬剤を貯留する薬剤ホッパー40a(粉粒体タンクに相当する)、繰り出し部40b、及び繰り出し部40bに接続された繰り出しホース40c、を備えた施薬ユニット40と、その施薬ユニット40を支持するタンク支持部材41と、を備えて、植付機枠部30に支持されている。
[Drug supply device]
The drug supply device 4 included in the seedling planting device 2 is provided at a location on the rear side of the seedling stand 20 so as to supply the drug to the field along each row of seedlings.
Each of the drug supply devices 4 includes a drug hopper 40a (corresponding to a powder / granular material tank) for storing the drug, a feeding section 40b, and a feeding unit 40 provided with a feeding hose 40c connected to the feeding section 40b. A tank support member 41 for supporting the dispensing unit 40 is provided, and the tank support member 41 is supported by the planting machine frame portion 30.

施薬ユニット40は、透明の合成樹脂材により二股状に形成されて2条分の薬剤を貯留する一つの薬剤ホッパー40aを備えている。その薬剤ホッパー40aの下部に左右一対の繰り出し部40bが設けられ、各繰り出し部40bの下部に繰り出しホース40cの上端側が接続されている。繰り出しホース40cの下端側は、整地フロート32に支持された作溝器39に接続されている。
この作溝器39には、施肥装置16から延出された施肥ホース16dの下端部も連結されている。したがって、作溝器39で形成した苗植付箇所の横側部における施肥溝には、施肥ホース16dから供給される肥料と、繰り出しホース40cから供給される薬剤と、が合流して共通の溝内に投入される。
The dispensing unit 40 includes one drug hopper 40a that is formed in a bifurcated shape with a transparent synthetic resin material and stores two rows of drugs. A pair of left and right feeding portions 40b are provided at the lower portion of the drug hopper 40a, and the upper end side of the feeding hose 40c is connected to the lower portion of each feeding portion 40b. The lower end side of the feeding hose 40c is connected to the groove making device 39 supported by the leveling float 32.
The lower end of the fertilizer application hose 16d extended from the fertilizer application device 16 is also connected to the groove-growing device 39. Therefore, in the fertilizer application groove on the lateral side of the seedling planting portion formed by the groove making device 39, the fertilizer supplied from the fertilizer application hose 16d and the chemicals supplied from the feeding hose 40c merge to be a common groove. It is thrown in.

図2及び図6に示すように、主苗のせ台部分21の6条分の苗載置部20aの後方側には、合計6条分の薬剤ホッパー40aを備えた三個の施薬ユニット40が設けられ、6条分の苗載置部20aのそれぞれに対応する位置の圃場へ薬剤供給が行われる。
端部側苗のせ台部分22の2条分の苗載置部20aの後方側には、2条分の薬剤ホッパー40aを備えた一個の施薬ユニット40が設けられ、2条分の苗載置部20aのそれぞれに対応する位置の圃場へ薬剤供給が行われる。
As shown in FIGS. 2 and 6, on the rear side of the 6-row seedling placing portion 20a of the main seedling resting portion 21, three dispensing units 40 equipped with a total of 6-row drug hopper 40a are provided. The chemicals are supplied to the fields at the positions corresponding to each of the 6 rows of seedling placing portions 20a.
On the rear side of the two-row seedling placing portion 20a of the end-side seedling stand portion 22, one medicine unit 40 equipped with two-row medicine hopper 40a is provided, and two-row seedling placement is provided. The drug is supplied to the field at the position corresponding to each of the parts 20a.

〔タンク支持部材〕
各施薬ユニット40を支持するタンク支持部材41は次のように構成されている。
タンク支持部材41は、薬剤ホッパー40aの下部で左右一対の繰り出し部40bが設けられた部分同士にわたって掛け渡された支持枠体42(支持体に相当する)と、その支持枠体42の中間部に固定された縦支持杆43と、を備えている。
[Tank support member]
The tank support member 41 that supports each dispensing unit 40 is configured as follows.
The tank support member 41 is an intermediate portion between a support frame body 42 (corresponding to a support body) and a support frame body 42 that are hung over the portions provided with a pair of left and right feeding portions 40b at the lower portion of the drug hopper 40a. It is equipped with a vertical support rod 43 fixed to the above.

この薬剤供給装置4では、タンク支持部材41として、二種類の異なる構造のものが採用されている。
つまり、苗のせ台20の後部側箇所で右半分側に対向する位置の、右側二箇所の薬剤供給装置4では、第一支持部材41Aが用いられている。
苗のせ台20の後部側箇所で左半分側に対向する位置の、左側二箇所の薬剤供給装置4では、第一支持部材41Aとは構造の異なる第二支持部材41Bが用いられている。
In this drug supply device 4, two types of different structures are adopted as the tank support member 41.
That is, the first support member 41A is used in the drug supply devices 4 at the two locations on the right side, which are located on the rear side of the seedling stand 20 and face the right half side.
The second support member 41B, which has a structure different from that of the first support member 41A, is used in the drug supply devices 4 at the two locations on the left side, which are located on the rear side of the seedling stand 20 and face the left half side.

右側二箇所の薬剤供給装置4で用いられる第一支持部材41Aは、図6及び図8に示すように、支持枠体42が直線状の角パイプ材で構成された縦支持杆43の上端部に溶接固定されている。縦支持杆43の下端部は、植付機枠部30としての植付伝動ケース35の上面側に立設された取付ブラケット35aに連結されている。 As shown in FIGS. 6 and 8, the first support member 41A used in the drug supply device 4 at the two locations on the right side is the upper end portion of the vertical support rod 43 in which the support frame 42 is made of a linear square pipe material. It is fixed by welding to. The lower end of the vertical support rod 43 is connected to a mounting bracket 35a erected on the upper surface side of the planting transmission case 35 as the planting machine frame portion 30.

左側二箇所の薬剤供給装置4で用いられる第二支持部材41Bは、図7及び図9,10に示すように、支持枠体42を支持する縦支持杆43が、単なる直線状ではなく、側面視でL字状に屈曲した形状に形成されている。
つまり、植付作業姿勢にある苗のせ台20から後方側へ離れる方向に向けて、水平方向に沿って延出された後向きフレーム部44と、その後向きフレーム部44の後端部から前方斜め上方へ向けて延出された上向きフレーム部45と、を備えている。
後向きフレーム部44の前端部は、植付機枠部30としての植付伝動ケース35の上面側に立設された取付ブラケット35aに連結されている。上向きフレーム部45の上端部が支持枠体42の中間部に固定されている。
In the second support member 41B used in the drug supply device 4 at the two locations on the left side, as shown in FIGS. 7 and 9, 10, the vertical support rod 43 that supports the support frame 42 is not merely linear, but on the side surface. It is formed in an L-shaped curved shape visually.
That is, the rearward frame portion 44 extending in the horizontal direction toward the rearward side from the seedling stand 20 in the planting work posture, and the rearward end portion of the rearward facing frame portion 44 diagonally upward and forward. It is provided with an upward frame portion 45 extending toward.
The front end portion of the rearward frame portion 44 is connected to a mounting bracket 35a erected on the upper surface side of the planting transmission case 35 as the planting machine frame portion 30. The upper end portion of the upward frame portion 45 is fixed to the intermediate portion of the support frame body 42.

タンク支持部材41のうち、第二支持部材41Bには、タンク支持部材41を植付機枠部30側と、薬剤ホッパー40a側と、に分離可能な脱着部46が設けられている。
すなわち、上向きフレーム部45は、後向きフレーム部44と一体に構成された筒状部45aと、支持枠体42の中間部に固定された棒状部45bと、を備えている。そして、筒状部45aに対する棒状部45bの挿入状態で、棒状部45bの抜け出しを規制するように、筒状部45aと棒状部45bにわたってパッチン錠式の留め金具47が設けられている。
したがって、留め金具47を緩めて棒状部45bを筒状部45aから抜き出すことで、タンク支持部材41が分離可能である。これらの筒状部45a、棒状部45b,及び留め金具47を備えることによって脱着部46が構成されている。
Of the tank support members 41, the second support member 41B is provided with a detachable portion 46 capable of separating the tank support member 41 from the planting machine frame portion 30 side and the drug hopper 40a side.
That is, the upward frame portion 45 includes a tubular portion 45a integrally formed with the rearward frame portion 44, and a rod-shaped portion 45b fixed to an intermediate portion of the support frame body 42. A snap lock type fastener 47 is provided across the tubular portion 45a and the rod-shaped portion 45b so as to restrict the rod-shaped portion 45b from coming off while the rod-shaped portion 45b is inserted into the tubular portion 45a.
Therefore, the tank support member 41 can be separated by loosening the fastener 47 and pulling out the rod-shaped portion 45b from the cylindrical portion 45a. The detachable portion 46 is configured by providing these tubular portions 45a, rod-shaped portions 45b, and fasteners 47.

タンク支持部材41における縦支持杆43の上下高さ方向の中間部に、苗植付機構31側から跳ね上げられる泥土が、上方側の薬剤ホッパー40aや繰り出し部40bに向けて飛散することを抑制するための泥除けカバー48が設けられている。
タンク支持部材41のうち、右側二箇所の薬剤供給装置4で用いられる第一支持部材41Aは、その位置の泥除けカバー48に形成された貫通孔(図示せず)を貫通して、直線状の縦支持杆43が上方側へ延出されている。
左側二箇所の薬剤供給装置4で用いられる第二支持部材41Bは、上述したように、後向きフレーム部44が泥除けカバー48の下側を通って泥除けカバー48の後端よりも後方側へ延出されている。上向きフレーム部45は、後向きフレーム部44の後端部から前方斜め上方へ向けて延出されている。したがって第二支持部材41Bにおける縦支持杆43は、泥除けカバー48の存在位置を迂回して、泥除けカバー48の上方側で薬剤ホッパー40aや繰り出し部40bを支持することができる。
Suppresses the mud spattered from the seedling planting mechanism 31 side from scattering toward the chemical hopper 40a and the feeding portion 40b on the upper side in the middle portion of the tank support member 41 in the vertical height direction of the vertical support rod 43. A mudguard cover 48 is provided for this purpose.
Of the tank support members 41, the first support member 41A used in the drug supply device 4 at the two locations on the right side penetrates a through hole (not shown) formed in the mudguard cover 48 at that position and is linear. The vertical support rod 43 extends upward.
As described above, in the second support member 41B used in the two left side chemical supply devices 4, the rearward frame portion 44 passes under the mudguard cover 48 and extends rearward from the rear end of the mudguard cover 48. Has been done. The upward frame portion 45 extends diagonally forward and upward from the rear end portion of the rearward frame portion 44. Therefore, the vertical support rod 43 in the second support member 41B can bypass the existing position of the mudguard cover 48 and support the drug hopper 40a and the feeding portion 40b on the upper side of the mudguard cover 48.

苗のせ台20の後部側箇所で左半分側に対向する位置の、左側二箇所の薬剤供給装置4では、最も左側に位置する施薬ユニット40と、左から二番目の施薬ユニット40との間、及び左から二番目と三番目の施薬ユニット40との間で、タンク支持部材41における支持枠体42が次のように構成されている。
すなわち、図7に示すように、互いに隣接する位置のタンク支持部材41における支持枠体42同士が、ノブボルト49を用いて連結及び連結解除可能に構成してある。ノブボルト49は、一方の支持枠体42に形成されている貫通孔42aを通して、他方の支持枠体42に設けてある固定ナット42bに螺合して連結される。
In the drug supply device 4 at the two locations on the left side, which is located on the rear side of the seedling stand 20 and faces the left half side, between the dispensing unit 40 located on the leftmost side and the second dispensing unit 40 from the left. And between the second and third dispensing units 40 from the left, the support frame 42 in the tank support member 41 is configured as follows.
That is, as shown in FIG. 7, the support frames 42 in the tank support members 41 located adjacent to each other are configured to be connected and disconnected by using the knob bolt 49. The knob bolt 49 is screwed and connected to the fixing nut 42b provided in the other support frame 42 through the through hole 42a formed in one support frame 42.

〔薬剤供給装置の駆動構造〕
図7乃至図11に示すように、薬剤供給装置4における繰り出し部40bの駆動は、苗植付機構31における回転ケース36の回転運動を、繰り出し部40bの駆動アーム40dに操作ロッド36bを介して伝達することにより行われる。
つまり、回転ケース36の回転運動を、操作ロッド36bの往復運動に変換し、さらに駆動アーム40dの揺動作動に変換して、繰り出し部40bに内装されている繰り出しロータ(図示せず)を所定量ずつ回転させて、薬剤ホッパー40a内の薬剤を繰り出すように構成してある。
[Drive structure of drug supply device]
As shown in FIGS. 7 to 11, the driving of the feeding portion 40b in the drug supply device 4 is performed by rotating the rotary case 36 in the seedling planting mechanism 31 via the operation rod 36b on the driving arm 40d of the feeding portion 40b. It is done by communicating.
That is, the rotary motion of the rotary case 36 is converted into the reciprocating motion of the operation rod 36b, and further converted into the swing operation of the drive arm 40d, so that the feeding rotor (not shown) built in the feeding portion 40b is provided. It is configured to deliver the drug in the drug hopper 40a by rotating it by a fixed amount.

上記の操作ロッド36bは、薬剤供給装置4を取り外した際には、一端側の連結対象がなくなってしまう。このように一端側の連結対象がなくなった操作ロッド36bは、図11に示すように、下端支持部材26の近くに備えた苗押さえ支持杆27等の、位置固定可能な適宜部材に、苗押さえ支持杆27等を挟み込み可能な部材で構成される固定具50等の適宜固定手段で連結することにより、仮留めできるようにしてある。 When the drug supply device 4 is removed from the operation rod 36b, there is no connection target on one end side of the operation rod 36b. As shown in FIG. 11, the operation rod 36b having no connection target on one end side is attached to an appropriate member whose position can be fixed, such as a seedling holding support rod 27 provided near the lower end support member 26. The support rod 27 and the like can be temporarily fastened by appropriately connecting them with a fixing means such as a fixing tool 50 composed of a member capable of sandwiching the support rod 27 and the like.

〔別実施形態の1〕
上記の実施形態では、端部側苗のせ台部分22と、その端部側苗のせ台部分22が重なる位置の主苗のせ台部分21と、に対応して備えられた薬剤ホッパー40a及びタンク支持部材41を、重なる位置から退避可能にする構成として、タンク支持部材41に脱着部46を設ける構造のものを採用したが、この構造に限定されるものではない。
例えば、タンク支持部材41の上向きフレーム部45を後ろ向きフレーム部44に対して、後ろ向きフレーム部44の後端側を揺動支点にして揺動可能に構成する。あるいは、タンク支持部材41の全体又は上向きフレーム部45を後方側へスライド移動させるようにする、等の適宜手段を採用する事ができる。
その他の構成は、前述した実施形態と同様の構成を採用すればよい。
[1 of another embodiment]
In the above embodiment, the drug hopper 40a and the tank support provided corresponding to the end side seedling pedestal portion 22 and the main seedling pedestal portion 21 at the position where the end side seedling pedestal portion 22 overlaps. As a structure that allows the member 41 to be retracted from the overlapping position, a structure in which the tank support member 41 is provided with the detachable portion 46 is adopted, but the structure is not limited to this.
For example, the upward frame portion 45 of the tank support member 41 is configured to be swingable with respect to the rearward frame portion 44 with the rear end side of the rearward frame portion 44 as a swing fulcrum. Alternatively, an appropriate means such as sliding the entire tank support member 41 or the upward frame portion 45 to the rear side can be adopted.
For other configurations, the same configurations as those in the above-described embodiment may be adopted.

〔別実施形態の2〕
上記の実施形態では、粉粒体供給装置として、病虫害予防用の薬剤等を貯留する薬剤ホッパー40aを備えた薬剤供給装置4に適用した場合を例にして説明したが、この構造に限られるものではない。
例えば、粉粒体供給装置として、肥料等を貯留する施肥用の粉粒体タンクを備えたもので構成してもよい。
その他の構成は、前述した実施形態と同様の構成を採用すればよい。
[2 of another embodiment]
In the above embodiment, the case where the powder / granular material supply device is applied to the drug supply device 4 provided with the drug hopper 40a for storing the drug for preventing pests and the like has been described as an example, but the structure is limited to this. is not it.
For example, the powder or granular material supply device may be configured to include a powder or granular material tank for fertilizer application for storing fertilizer or the like.
For other configurations, the same configurations as those in the above-described embodiment may be adopted.

〔別実施形態の3〕
上記の実施形態では、施肥装置16から供給される肥料と、薬剤供給装置4から供給される薬剤とを、共通の作溝器39に合流させて、その作溝器39よって形成された共通の溝へ投入する構造のものを例示したが、これに限られるものではない。
例えば、作溝器39を肥料用と薬剤用とに分けて設けて、別々に形成された溝へ供給するようにしても良い。
その他の構成は、前述した実施形態と同様の構成を採用すればよい。
[3 of another embodiment]
In the above embodiment, the fertilizer supplied from the fertilizer application device 16 and the drug supplied from the drug supply device 4 are merged into a common groove-growing device 39, and a common groove-growing device 39 is formed. The structure to be put into the groove is illustrated, but the structure is not limited to this.
For example, the groove making device 39 may be provided separately for fertilizer and chemicals, and may be supplied to the separately formed grooves.
For other configurations, the same configurations as those in the above-described embodiment may be adopted.

〔別実施形態の4〕
上記の実施形態では、8条植え用の乗用型田植機を例にして説明したが、必ずしもこの構造に限定されるものではない。
例えば、8条に限らず、10条植え以上の条数で田植え作業を行うものであったり、8条に満たなくとも、主苗のせ台部分21に端部側苗のせ台部分22を重ねて格納する構造のものであっても良い。
その他の構成は、前述した実施形態と同様の構成を採用すればよい。
[4 of another embodiment]
In the above embodiment, a passenger-type rice transplanter for eight-row planting has been described as an example, but the structure is not necessarily limited to this.
For example, not limited to 8 rows, rice planting work is performed with 10 or more rows, or even if the number of rows is less than 8, the end side seedling stand portion 22 is overlapped with the main seedling stand portion 21. It may have a structure for storing.
For other configurations, the same configurations as those in the above-described embodiment may be adopted.

本発明は、主苗のせ台部分に端部側苗のせ台部分を重ねて格納する構造で、粉粒体供給装置の着脱を行う各種の田植機に適用することができる。 The present invention has a structure in which the end side seedling pedestal portion is overlapped and stored on the main seedling pedestal portion, and can be applied to various rice transplanters for attaching and detaching a powder or granular material supply device.

4 粉粒体供給装置
20 苗のせ台
20a 苗載置部
21 主苗のせ台部分
22 端部側苗のせ台部分
30 植付機枠部
31 苗植付機構
40a 粉粒体タンク
41 タンク支持部材
44 後向きフレーム部
45 上向きフレーム部
45a 筒状部
45b 棒状部
46 脱着部
47 留め金具
48 泥除けカバー
49 ノブボルト
4 Granular material supply device 20 Seedling stand 20a Seedling placement part 21 Main seedling stand part 22 End side seedling stand part 30 Planting machine frame 31 Seedling planting mechanism 40a Powder granule tank 41 Tank support member 44 Backward frame part 45 Upward frame part 45a Cylindrical part 45b Rod-shaped part 46 Detachable part 47 Fastener 48 Mudguard cover 49 Knob bolt

Claims (6)

マット状苗を載置可能な複数の苗載置部を備える苗のせ台と、
前記苗載置部のマット状苗を一株毎に取り出して圃場へ植え付ける苗植付機構と、
前記苗のせ台の後部側箇所で、各苗列に沿って圃場へ粉粒体を供給する粉粒体供給装置と、が備えられた苗植付装置であって、
前記苗のせ台が、複数の前記苗載置部を備える主苗のせ台部分と、その主苗のせ台部分の左右方向での横側端部に対して連結及び連結解除可能な端部側苗のせ台部分と、の組み合わせによって構成されているとともに、
前記端部側苗のせ台部分が前記主苗のせ台部分の横側端部に連結されて一連の苗載置面を構成する作業姿勢連結状態と、前記端部側苗のせ台部分が平面視で前記主苗のせ台部分側の苗載置面の上側に重なるように支持された格納支持状態と、に前記主苗のせ台部分に対する前記端部側苗のせ台部分の姿勢が切換可能に構成され、
前記粉粒体供給装置に、各苗載置部に対応する苗列毎に粉粒体を供給する複数の粉粒体タンクと、前記苗のせ台が装備されている植付機枠部に対して前記粉粒体タンクを支持させる複数のタンク支持部材と、が備えられ、
複数の前記タンク支持部材の上端部に、前記粉粒体タンクを支持する支持体が連結され、
前記苗のせ台の横移動方向で互いに隣り合う位置の前記支持体同士が、連結及び連結解除可能に構成され、
前記端部側苗のせ台部分と、その端部側苗のせ台部分が重なる位置の前記主苗のせ台部分と、に対応して備えられた前記粉粒体タンク及び前記タンク支持部材が、前記植付機枠部から離脱して前記重なる位置から退避可能に構成されている苗植付装置。
A seedling stand equipped with multiple seedling placement sections where mat-shaped seedlings can be placed, and
A seedling planting mechanism in which mat-shaped seedlings in the seedling placement area are taken out one by one and planted in a field,
A seedling planting device provided with a powder / granular material supply device for supplying powder / granular material to a field along each row of seedlings at a location on the rear side of the seedling stand.
The seedling pedestal can be connected to and disconnected from the main seedling pedestal portion provided with the plurality of seedling placing portions and the lateral end portion of the main seedling pedestal portion in the left-right direction. It is composed of a combination of a sapling and a sapling, and
The working posture connection state in which the end-side seedling pedestal portion is connected to the lateral end portion of the main seedling pedestal portion to form a series of seedling mounting surfaces, and the end-side seedling pedestal portion are viewed in a plan view. The storage support state is supported so as to overlap the upper side of the seedling mounting surface on the main seedling pedestal portion side, and the posture of the end side seedling pedestal portion with respect to the main seedling pedestal portion can be switched. Being done
To the powder / granular material supply device, a plurality of powder / granular material tanks for supplying powder / granular material for each seedling row corresponding to each seedling placing portion, and a planting machine frame portion equipped with the seedling stand. A plurality of tank support members for supporting the powder or granular material tank are provided.
A support that supports the powder or granular material tank is connected to the upper ends of the plurality of tank support members.
The supports at positions adjacent to each other in the lateral movement direction of the seedling stand are configured to be connectable and detachable.
The powder or granular material tank and the tank support member provided corresponding to the end-side seedling pedestal portion and the main seedling pedestal portion at a position where the end-side seedling pedestal portion overlaps with each other. A seedling planting device configured to be detached from the planting machine frame and retractable from the overlapping position.
前記端部側苗のせ台部分と、その端部側苗のせ台部分が重なる位置の前記主苗のせ台部分と、に対応して備えられた前記タンク支持部材に、前記苗のせ台から後方側へ離れる方向へ延出された後向きフレーム部と、前記後向きフレーム部の後端部から前方斜め上方へ延出された上向きフレーム部と、が備えられ、
前記タンク支持部材に、当該タンク支持部材を前記植付機枠部側と、前記粉粒体タンク側と、に分離可能な脱着部が備えられた請求項1記載の苗植付装置。
The tank support member provided corresponding to the end-side seedling pedestal portion and the main seedling pedestal portion at a position where the end-side seedling pedestal portion overlaps with the seedling pedestal on the rear side. A rearward-facing frame portion extending in a direction away from the rear and an upward-facing frame portion extending diagonally forward and upward from the rear end portion of the rearward frame portion are provided.
The seedling planting apparatus according to claim 1, wherein the tank support member is provided with a detachable portion capable of separating the tank support member into the planting machine frame portion side and the powder or granular material tank side.
前記苗植付機構と前記粉粒体タンクとの間に、前記苗植付機構側から前記粉粒体タンク側への泥土の飛散を制限する泥除けカバーが設けられ、
前記後向きフレーム部が前記泥除けカバーの下側を通って前記泥除けカバーの後端よりも後方側へ延出されている請求項2記載の苗植付装置。
A mudguard cover is provided between the seedling planting mechanism and the powder or granular material tank to limit the scattering of mud from the seedling planting mechanism side to the powder or granular material tank side.
The seedling planting apparatus according to claim 2, wherein the rearward frame portion passes under the mudguard cover and extends rearward from the rear end of the mudguard cover.
前記脱着部は、前記後向きフレーム部よりも上方側の前記上向きフレーム部に設けられている請求項2又は3記載の苗植付装置。 The seedling planting device according to claim 2 or 3, wherein the detachable portion is provided on the upward frame portion on the upper side of the rearward frame portion. 前記脱着部に、前記後向きフレーム部と一体に構成された筒状部と、前記粉粒体タンク側に一体連結された棒状部と、が備えられ、かつ、前記筒状部に対する前記棒状部の挿入状態で、前記棒状部の抜け出しを規制するパッチン錠式の留め金具が備えられている請求項4記載の苗植付装置。 The detachable portion is provided with a tubular portion integrally configured with the rearward frame portion and a rod-shaped portion integrally connected to the powder / granular material tank side, and the rod-shaped portion with respect to the tubular portion. The seedling planting device according to claim 4, which is provided with a snap lock type fastener that regulates the stick-shaped portion from coming off in the inserted state. 前記支持体同士が、ノブボルトを介して連結及び連結解除可能に構成されている請求項1~5のいずれか一項記載の苗植付装置。 The seedling planting device according to any one of claims 1 to 5, wherein the supports are configured to be connected and disconnected via a knob bolt.
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