JP5493653B2 - Seedling planting machine - Google Patents

Seedling planting machine Download PDF

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JP5493653B2
JP5493653B2 JP2009224968A JP2009224968A JP5493653B2 JP 5493653 B2 JP5493653 B2 JP 5493653B2 JP 2009224968 A JP2009224968 A JP 2009224968A JP 2009224968 A JP2009224968 A JP 2009224968A JP 5493653 B2 JP5493653 B2 JP 5493653B2
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seedling
preliminary
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seedling mounting
placement
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JP2011072216A (en
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靖浩 林
和宏 石山
仁史 山崎
学 名本
信 山口
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Iseki and Co Ltd
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Description

この発明は、予備苗載台を設けた苗植機の技術分野に属する。   The present invention belongs to the technical field of a seedling planting machine provided with a preliminary seedling stage.

走行車体の後部に苗植付部を設けた乗用型田植機である苗植機において、機体の前部左右両側となる走行車体の側部に前後方向に長い予備苗載部を配置し、該予備苗載部に多数の回転ローラを設けたものがある。この予備苗載部は、機体の前部を畦際に近づけて機体を停止させて使用し、畦に居る作業者が畦から予備苗を連続的に予備苗載部の前部から苗を載せた苗箱Ｃ又は苗を載せた苗掬い板を補給でき、予備苗を予備苗載部上で後部まで移動させて、機体に搭乗している作業者が予備苗載部の後部で予備苗を取り、苗植機の苗載台に供給するものであり、苗の供給作業が容易に行なえるようにしたものである。   In a seedling transplanter that is a riding type rice transplanter provided with a seedling planting portion at the rear of the traveling vehicle body, a preliminary seedling mounting portion that is long in the front-rear direction is disposed on the side of the traveling vehicle body that is the front left and right sides of the aircraft, There is one in which a large number of rotating rollers are provided in the preliminary seedling placement section. This spare seed placement unit is used with the front of the aircraft approaching the heel to stop the aircraft, and an operator in the cage continuously places the seedlings from the heel on the front of the preliminary seed placement unit. The seedling box C or the seedling-seeking board on which the seedling is placed can be replenished, the spare seedling is moved to the rear on the spare seedling loading section, and the worker on board the spare seedling at the rear of the spare seedling loading section. It is to be supplied to the seedling stage of the seedling transplanter so that the seedling can be supplied easily.

そして、予備苗載部は、固定苗載部と、上側へ回動させて前記固定苗載部の上方に位置する収納状態へ移動させる回動苗載部を備えている。該回動苗載部は、予備苗載部の苗箱又は苗掬い板の移動方向に移動させて折りたたむことにより、予備苗載部の上方に配置され前記固定苗載部よりも載置スペースが小さい副予備苗載部となるものである。この副予備苗載部は、予備苗載部の固定苗載部の上方位置で、且つ前記固定苗載部の苗箱Ｃ又は苗掬い板の移動方向における一端部となる後端部の１枚分の苗箱Ｃ又は苗掬い板の載置スペースの上方に重複しない位置に配置されている。また、予備苗載部及び副予備苗載部は、苗箱Ｃ又は苗掬い板の移動方向に傾斜する傾斜姿勢に互いに平行に配置されている。この予備苗載台は、予備苗載部の一部となる回動苗載部を収納状態へ移動させることにより副予備苗載部が構成されるものであり、前記回動苗載部を移動するのにすぎず、予備苗載台全体に載置できる苗の枚数は変わらない。（特許文献１参照）。   The preliminary seedling placement section includes a fixed seedling placement section and a rotating seedling placement section that is rotated upward and moved to a storage state positioned above the fixed seedling placement section. The rotating seedling mounting part is arranged above the preliminary seedling mounting part by moving in the moving direction of the seedling box or the seedling seedling plate of the preliminary seedling mounting part and folding the rotating seedling mounting part. It becomes a small auxiliary reserve seeding part. This auxiliary preliminary seedling part is located at a position above the fixed seedling mounting part of the preliminary seedling mounting part, and one piece at the rear end part that becomes one end part in the moving direction of the seedling box C or the seedling plate of the fixed seedling mounting part. It is arrange | positioned in the position which does not overlap above the mounting space of the seedling box C or the seedling sowing board. Moreover, the preliminary seedling mounting part and the auxiliary preliminary seedling mounting part are arranged in parallel to each other in an inclined posture inclined in the moving direction of the seedling box C or the seedling sowing board. This spare seedling stage is configured such that an auxiliary preliminary seedling part is configured by moving a rotating seedling part, which is a part of the preliminary seedling part, to a stored state, and the rotating seedling part is moved. The number of seedlings that can be placed on the entire preliminary seedling stage is not changed. (See Patent Document 1).

特開２００５−１７６６８０号公報JP 2005-176680 A

背景技術の予備苗載部は苗を移動させることができ苗の供給作業が容易となるが、苗植機の畦際での旋回や取扱い、あるいは機体の支持構造等の制約条件から、前記予備苗載部を極端に長く構成することができない。しかしながら、植付作業においては、畦際で予備苗載部に予備の苗を貯留し、植付の進捗に伴い苗植付部に貯留する苗が少なくなると、圃場内での植付途中でも予備苗載部の苗を苗植付部に補給するが、上述のように制限された長さの予備苗載部では、該予備苗載部の長さ分の苗の枚数しか苗を搭載できないので、十分な予備の苗を機体に搭載することができない。   The spare seed placement section of the background art can move seedlings and facilitate the supply of seedlings. However, due to the constraints such as turning and handling of the seedling planting machine or support structure of the machine body, The seedling part cannot be made extremely long. However, in planting work, reserve seedlings are stored in the reserve seedling loading section at the end of the planting, and if there are fewer seedlings stored in the seedling planting section as the planting progresses, reserve seedlings will be prepared even during planting in the field. The seedling placement part is replenished with the seedling planting part, but in the limited length of the preliminary seedling part as described above, only the number of seedlings for the length of the preliminary seedling part can be loaded. , Not enough spare seedlings can be mounted on the aircraft.

そこで、本発明は、予備苗載部での苗の供給作業の容易化を維持しながら、該予備苗載部とは別の副予備苗載部を設けて予備苗の搭載量の向上を図り、植付作業を円滑に行えるようにして作業能率の向上を図ることを課題とする。   Therefore, the present invention aims to improve the loading amount of the spare seedling by providing a sub-preparatory seedling mounting section different from the spare seedling mounting section while maintaining the ease of the seedling supply operation in the spare seedling mounting section. It is an object of the present invention to improve the work efficiency by enabling smooth planting work.

上記課題を解決するために、次のような技術的手段を講じた。
すなわち、請求項１に係る発明は、走行車体（２）の後部に苗植付部（４）を設け、苗を載せた苗箱（Ｃ）又は苗を載せた苗掬い板を載置する予備苗載台（３８）を走行車体（２）の側部に設け、予備苗載台（３８）を、複数の苗箱（Ｃ）又は複数の苗掬い板を前後方向に連続して移動可能に載置できる予備苗載部（７２）と、該予備苗載部（７２）よりも載置スペースが小さい副予備苗載部（１５０）で構成した苗植機において、予備苗載部（７２）の前部の上方に第一の副予備苗載部（１５０）を配置し、予備苗載部（７２）の後部の上方に第二の副予備苗載部（１５０）を配置し、予備苗載部（７２）の前部を前上がり傾斜姿勢に構成し、予備苗載部（７２）の後部を後上がり傾斜姿勢に構成し、予備苗載部（７２）と第一の副予備苗載部（１５０）との上下方向の間隔が前側へいくほど狭くなり、予備苗載部（７２）と第二の副予備苗載部（１５０）との上下方向の間隔が後側へいくほど狭くなる構成とした苗植機とした。
また、請求項２に係る発明は、予備苗載部（７２）には、上側へ回動して収納状態へ移動可能な回動苗載部（８９）を含む複数の苗載部を備え、予備苗載部（７２）の下方には、空の苗箱（Ｃ）又は空の苗掬い板を移送するための移送レール（１６７）を、各苗載部に対応して複数に分割すると共に各苗載部に支持させて設け、複数の苗載部は前側の苗載部ほど苗載面が高くなる段差を構成した請求項１に記載の苗植機とした。
また、請求項３に係る発明は、苗植付部（４）への伝動を入切する植付クラッチ（１６９）を設け、植付クラッチ（１６９）の従動クラッチ爪体（１７１）の外周面には操作溝（１７１ａ）を備え、操作溝（１７１ａ）には、操作ピン（１７３）が挿入されることにより、従動クラッチ爪体（１７１）の正方向の回転で該従動クラッチ爪体（１７１）を駆動クラッチ爪体（１７０）から離れる側に移動させて該従動クラッチ爪体（１７１）への伝動を断つ正転用の案内面（１７１ｂ）と、従動クラッチ爪体（１７１）の逆方向の回転で該従動クラッチ爪体（１７１）を駆動クラッチ爪体（１７０）から離れる側に移動させて該従動クラッチ爪体（１７１）への伝動を断つ逆転用の案内面（１７１ｃ）とを備えた請求項１又は請求項２に記載の苗植機とした。
また、請求項４に係る発明は、走行車体（２）の後部に苗植付部（４）を設け、苗を載せた苗箱（Ｃ）又は苗を載せた苗掬い板を載置する予備苗載台（３８）を走行車体（２）の側部に設け、予備苗載台（３８）を、複数の苗箱（Ｃ）又は複数の苗掬い板を前後方向に連続して移動可能に載置できる予備苗載部（７２）と、該予備苗載部（７２）よりも載置スペースが小さい副予備苗載部（１５０）で構成した苗植機において、予備苗載部（７２）の前部の上方に副予備苗載部（１５０）を配置し、予備苗載部（７２）には上側へ回動して収納状態へ移動可能な回動苗載部（８９）を備え、回動苗載部（８９）の回動に連動して、副予備苗載部（１５０）を、回動苗載部（８９）の回動領域に配置される苗箱（Ｃ）又は苗掬い板の載置状態から、前記回動領域外へ自動的に退避させる退避連動機構を設けた苗植機とした。 In order to solve the above problems, the following technical measures were taken.
That is, the invention according to claim 1 is provided with a seedling planting part (4) at the rear part of the traveling vehicle body (2), and a spare for placing a seedling box (C) on which seedlings are placed or a seedling seedling board on which seedlings are placed. A seedling stage (38) is provided on the side of the traveling vehicle body (2), and the preliminary seedling stage (38) can be continuously moved in the front-rear direction through a plurality of seedling boxes (C) or a plurality of seedling seedling boards. In a seedling planting machine constituted by a preliminary seedling placement section (72) that can be placed and a sub-preparatory seedling placement section (150) having a smaller placement space than the preliminary seedling placement section (72), the preliminary seedling placement section (72) The first auxiliary preliminary seedling part (150) is arranged above the front part of the first auxiliary seedling part, and the second auxiliary preliminary seedling part (150) is arranged above the rear part of the preliminary seedling part (72). the front of the mounting portion (72) configured before upward inclined position, constitute pre Naeno section rear (72) rearwardly and upwardly inclined position, pre Naeno portion (72) and the first sub-pre seedling The vertical distance from the part (150) decreases toward the front side, and the vertical distance between the preliminary seedling mounting part (72) and the second auxiliary preliminary seedling mounting part (150) decreases toward the rear side. The seedling planting machine was constructed as follows.
Moreover, the invention which concerns on Claim 2 is provided with the several seedling mounting part containing the rotation seedling mounting part (89) which can be rotated to an accommodation state in the preliminary seedling mounting part (72), and can be moved to an accommodation state, Below the preliminary seedling placement section (72), a transfer rail (167) for transferring an empty seedling box (C) or an empty seedling scooping plate is divided into a plurality corresponding to each seedling placement section. The seedling transplanter according to claim 1, wherein the seedling placement unit is provided so as to be supported by each seedling placement unit, and the plurality of seedling placement units constitute a step in which the seedling placement surface becomes higher toward the front seedling placement unit.
Moreover, the invention which concerns on Claim 3 provides the planting clutch (169) which turns on and off the transmission to the seedling planting part (4), and the outer peripheral surface of the driven clutch nail | claw body (171) of a planting clutch (169). Is provided with an operation groove (171a), and an operation pin (173) is inserted into the operation groove (171a) so that the driven clutch pawl body (171) rotates in the forward direction. ) Is moved away from the drive clutch pawl body (170) to cut off the transmission to the driven clutch pawl body (171) and the reverse direction of the driven clutch pawl body (171). And a reverse guide surface (171c) for moving the driven clutch pawl (171) away from the drive clutch pawl (170) by rotation to cut off the transmission to the driven clutch pawl (171). Claim 1 or claim 2 I was planting machine.
According to a fourth aspect of the present invention, a seedling planting part (4) is provided at the rear part of the traveling vehicle body (2), and a seedling box (C) on which seedlings are placed or a spare seedling plate on which seedlings are placed. A seedling stage (38) is provided on the side of the traveling vehicle body (2), and the preliminary seedling stage (38) can be continuously moved in the front-rear direction through a plurality of seedling boxes (C) or a plurality of seedling seedling boards. In a seedling planting machine constituted by a preliminary seedling placement section (72) that can be placed and a sub-preparatory seedling placement section (150) having a smaller placement space than the preliminary seedling placement section (72), the preliminary seedling placement section (72) The auxiliary preliminary seedling part (150) is arranged above the front part of the front part, and the preliminary seedling part (72) is provided with a rotating seedling part (89) that can rotate upward and move to the storage state. In conjunction with the rotation of the rotating seedling mounting part (89), the auxiliary preliminary seedling mounting part (150) is placed in the seedling box (C) or the seedling seedling arranged in the rotating region of the rotating seedling mounting part (89). Whether the board is placed And a seedling planting machine provided with a retracting linkage mechanism for automatically retracted outside the rotating region.

請求項１に係る発明によると、第一及び第二の副予備苗載部（１５０）に苗を搭載することにより、予備の苗の搭載量を増すことができ、植付作業を円滑に行える。また、予備苗載部（７２）の前部の上方に第一の副予備苗載部（１５０）を配置し、予備苗載部（７２）の後部の上方に第二の副予備苗載部（１５０）を配置し、予備苗載部（７２）の前部を前上がり傾斜姿勢に構成し、予備苗載部（７２）の後部を後上がり傾斜姿勢に構成し、予備苗載部（７２）と副予備苗載部（１５０）との上下方向の間隔が前側へいくほど狭くなり、予備苗載部（７２）と第二の副予備苗載部（１５０）との上下方向の間隔が後側へいくほど狭くなる構成としたので、予備苗載部（７２）の前端と第一の副予備苗載部（１５０）の前端の高低差及び予備苗載部（７２）の後端と第二の副予備苗載部（１５０）の後端の高低差を小さくすることができ、予備苗載部（７２）の前端と第一の副予備苗載部（１５０）の前端の位置を近づけ且つ予備苗載部（７２）の後端と第二の副予備苗載部（１５０）の後端の位置を近づけることができ、機体前方からの予備苗載部（７２）と第一の副予備苗載部（１５０）への苗供給や予備苗載部（７２）と第二の副予備苗載部（１５０）から機体後部の苗植付部（４）へ向けての苗取出を容易に行うことができるので、苗補給作業の作業能率の向上が図れる。更に、第一及び第二の副予備苗載部（１５０）が予備苗載部（７２）の前後に振り分けて配置されるので、予備苗載部（７２）及び副予備苗載部（１５０）からなる予備苗載装置の前後重量バランスを良好に維持できる。
請求項２に係る発明によると、請求項１に係る発明の効果に加えて、移送レール（１６７）により空の苗箱（Ｃ）又は空の苗掬い板を移送することができる。また、予備苗載部（７２）上の苗を前側の苗載部ほど苗載面が高くなる段差で受けることができるので、苗補給作業のために走行停止することで頻繁に発生する機体の走行の急減速等で、予備苗載部（７２）に搭載する複数の苗が、その重量に伴う慣性力により予備苗載部（７２）の前端部から前方へ飛び出すことを防止できる。更に、回動苗載部（８９）を上側へ回動した状態で、回動苗載部（８９）に対応する移送レール（１６７）を回動苗載部（８９）の上方に位置させることができ、予備苗載部（７２）の苗載部を上下複数段の構成として使用するときでも、移送レール（１６７）に苗箱（Ｃ）又は苗掬い板あるいは空の苗箱（Ｃ）又は空の苗掬い板を載せることができ、苗補給作業性を向上させることができる。
請求項３に係る発明によると、請求項１又は請求項２に係る発明の効果に加えて、操作溝（１７１ａ）に操作ピン（１７３）が挿入されることにより、従動クラッチ爪体（１７１）が逆方向に回転しても、逆転用の案内面（１７１ｃ）により従動クラッチ爪体（１７１）を駆動クラッチ爪体（１７０）から離れる側に移動させて該従動クラッチ爪体（１７１）への伝動を断つので、苗植付部（４）が逆方向に作動するのを防止し、後進時には苗植付部（４）の駆動が確実に停止する。
請求項４に係る発明によると、副予備苗載部（１５０）に苗を搭載することにより、予備の苗の搭載量を増すことができ、植付作業を円滑に行える。また、副予備苗載部（１５０）は、苗箱（Ｃ）又は苗掬い板の載置状態では回動苗載部（８９）の回動領域に配置される程度の予備苗載部（７２）に近い位置にあり、予備苗載部（７２）との高低差が小さく配置できるので、予備苗載部（７２）と副予備苗載部（１５０）を苗補給作業が行い易い高さに設定でき、予備苗載部（７２）及び副予備苗載部（１５０）を介しての苗補給作業を容易に行える。しかも、予備苗載部（７２）の一部が圃場の畦あるいは他の構造物に干渉するおそれがあるときや、予備苗載部（７２）が長過ぎるために畦からの苗補給が行いにくいときは、副予備苗載部（１５０）が前記載置状態のままで回動苗載部（８９）を回動させることにより、副予備苗載部（１５０）を前記回動領域外へ自動的に退避させ回動苗載部（８９）を収納状態へ移動させて予備苗載部（７２）の長さを縮小することができ、副予備苗載部（１５０）及び回動苗載部（８９）が破損するようなことを防止でき、副予備苗載部（１５０）を退避させる手間を省略でき、予備苗載部（７２）及び副予備苗載部（１５０）の収納作業の簡素化が図れると共に、予備苗載部（７２）の干渉の防止や苗補給の容易化が図れる。 According to the invention which concerns on Claim 1, the mounting amount of a reserve seedling can be increased by carrying a seedling in the 1st and 2nd auxiliary preliminary seedling mounting part (150) , and a planting operation can be performed smoothly. . Further, the first auxiliary preliminary seedling part (150) is arranged above the front part of the preliminary seedling part (72), and the second auxiliary preliminary seedling part is located above the rear part of the preliminary seedling part (72). (150) is arranged, the front part of the preliminary seedling placement part (72) is configured in a forward rising and inclined posture, the rear part of the preliminary seedling mounting part (72) is configured in a rearward rising and inclined posture, and the preliminary seedling mounting part (72 ) And the auxiliary auxiliary seedling placement part (150) in the vertical direction becomes narrower toward the front side, and the vertical interval between the preliminary seedling placement part (72) and the second auxiliary preliminary seedling placement part (150) is reduced. Since it became the structure narrowed so that it went to the back side, the height difference of the front end of the preliminary seedling mounting part (72) and the front end of the first auxiliary preliminary seedling mounting part (150) and the rear end of the preliminary seedling mounting part (72) it is possible to reduce the height difference between the second rear end of the sub spare Naeno unit (150), the front end of the front end and the first sub-pre Naeno portion of the preliminary Naeno portion (72) (150) Position closer and can be brought close to the position of the rear end of the rear end and a second sub-pre Naeno portion of the preliminary Naeno portion (72) (150), preliminary Naeno unit from the machine body front (72) first Feeding seedlings to one auxiliary spare seedling mounting section (150) and seedlings from the preliminary seedling mounting section (72) and the second auxiliary preliminary seedling mounting section (150) toward the seedling planting section (4) at the rear of the aircraft Since removal can be performed easily, the work efficiency of the seedling replenishment work can be improved. Furthermore, since the first and second auxiliary preliminary seedling placement parts (150) are arranged before and after the preliminary seedling placement part (72), the preliminary seedling placement part (72) and the auxiliary preliminary seedling placement part (150) are arranged. It is possible to maintain a good balance between the front and rear weights of the preliminary seedling placement device comprising
According to the invention according to claim 2, in addition to the effect of the invention according to claim 1, an empty seedling box (C) or an empty seedling seedling board can be transferred by the transfer rail (167). In addition, since the seedling on the preliminary seedling mounting section (72) can be received at a step where the seedling mounting surface becomes higher as the front seedling mounting section, the aircraft frequently generated by stopping traveling for seedling replenishment work It is possible to prevent a plurality of seedlings mounted on the preliminary seedling placement portion (72) from jumping forward from the front end portion of the preliminary seedling placement portion (72) due to the inertial force accompanying the weight due to sudden deceleration of traveling or the like. Further, the transfer rail (167) corresponding to the rotating seedling mounting part (89) is positioned above the rotating seedling mounting part (89) in a state where the rotating seedling mounting part (89) is rotated upward. Even when the seedling mounting part of the preliminary seedling mounting part (72) is used as a plurality of upper and lower stages, the transfer rail (167) can have a seedling box (C) or a seedling cradle or an empty seedling box (C) or An empty seedling board can be placed, and seedling supply workability can be improved.
According to the invention of claim 3, in addition to the effects of the invention of claim 1 or claim 2, the operation pin (173) is inserted into the operation groove (171a), whereby the driven clutch pawl body (171). Is rotated in the reverse direction, the driven clutch pawl body (171) is moved away from the drive clutch pawl body (170) by the reverse guide surface (171c) to the driven clutch pawl body (171). Since the transmission is cut off, the seedling planting part (4) is prevented from operating in the reverse direction, and the drive of the seedling planting part (4) is surely stopped during reverse travel.
According to the invention which concerns on Claim 4, by mounting a seedling in the auxiliary | assistant preliminary | backup seedling mounting part (150), the mounting amount of a reserve seedling can be increased and a planting operation can be performed smoothly. Further, the auxiliary preliminary seedling mounting part (150) is arranged so that the preliminary seedling mounting part (72) is arranged in the rotating region of the rotating seedling mounting part (89) in the mounting state of the seedling box (C) or the seedling sowing board. ) And the height difference from the preliminary seedling placement part (72) can be small, so that the preliminary seedling placement part (72) and the auxiliary preliminary seedling placement part (150) can be easily operated for seedling replenishment work. The seedling replenishment work can be easily performed through the preliminary seedling placement section (72) and the auxiliary preliminary seedling placement section (150). Moreover, it is difficult to replenish seedlings from the cocoon when there is a possibility that a part of the preliminary seedling part (72) may interfere with the cocoon or other structure in the field or because the preliminary seedling part (72) is too long. When the auxiliary preliminary seedling mounting part (150) is left in the above-described state, the auxiliary preliminary seedling mounting part (150) is automatically moved out of the rotation area by rotating the rotary seedling mounting part (89). It is possible to reduce the length of the preliminary seedling mounting part (72) by retracting the rotating seedling mounting part (89) to the retracted state, and the auxiliary preliminary seedling mounting part (150) and the rotating seedling mounting part (89) can be prevented from being damaged, and the trouble of retracting the auxiliary preliminary seedling mounting part (150) can be omitted, and the storing operation of the preliminary seedling mounting part (72) and the auxiliary preliminary seedling mounting part (150) is simplified. In addition, it is possible to prevent interference of the preliminary seedling placement section (72) and facilitate seedling replenishment.

乗用型田植機の側面図である。It is a side view of a riding type rice transplanter. 乗用型田植機の平面図である。It is a top view of a riding type rice transplanter. 副予備苗載部を省略した予備苗載台の側面図である。It is a side view of the preliminary seedling mounting stand from which the auxiliary preliminary seedling mounting portion is omitted. 副予備苗載部を省略した予備苗載台の平面図である。It is a top view of the preliminary seedling mounting stand which abbreviate | omitted the auxiliary preliminary seedling mounting part. 予備苗載台の要部拡大側面図である。It is a principal part expanded side view of a preliminary seedling stand. 予備苗載台の要部拡大平面図である。It is a principal part enlarged plan view of a preliminary seedling stand. 苗箱収納部の要部拡大正面図である。It is a principal part enlarged front view of a seedling box storage part. 予備苗載台の一部断面正面図である。It is a partial cross section front view of a preliminary seedling stand. 予備苗載部及び副予備苗載部を示す側面図である。It is a side view which shows a preliminary seedling mounting part and an auxiliary preliminary seedling mounting part. 予備苗載台の収納状態における予備苗載部及び副予備苗載部を示す側面図であるIt is a side view which shows the preliminary seedling mounting part and the auxiliary preliminary seedling mounting part in the storage state of a preliminary seedling mounting base 乗用型田植機の作用説明用平面図である。It is a top view for an operation explanation of a riding type rice transplanter. 乗用型田植機の作用説明用平面図である。It is a top view for an operation explanation of a riding type rice transplanter. 予備苗載部及び副予備苗載部を示す側面図である。It is a side view which shows a preliminary seedling mounting part and an auxiliary preliminary seedling mounting part. 予備苗載部及び副予備苗載部の配置を判り易く示す側面図である。It is a side view which shows arrangement | positioning of a preliminary seedling mounting part and an auxiliary | assistant seedling mounting part easily. 予備苗載部及び副予備苗載部の配置を判り易く示す側面図である。It is a side view which shows arrangement | positioning of a preliminary seedling mounting part and an auxiliary | assistant seedling mounting part easily. 予備苗載部及び副予備苗載部の配置を判り易く示す側面図である。It is a side view which shows arrangement | positioning of a preliminary seedling mounting part and an auxiliary | assistant seedling mounting part easily. 予備苗載部及び副予備苗載部の配置を判り易く示す側面図である。It is a side view which shows arrangement | positioning of a preliminary seedling mounting part and an auxiliary | assistant seedling mounting part easily. 予備苗載部及び副予備苗載部の配置を判り易く示す側面図である。It is a side view which shows arrangement | positioning of a preliminary seedling mounting part and an auxiliary | assistant seedling mounting part easily. 予備苗載部及び副予備苗載部の配置を判り易く示す側面図である。It is a side view which shows arrangement | positioning of a preliminary seedling mounting part and an auxiliary | assistant seedling mounting part easily. 空箱移送レールを備える予備苗載部を示す側面図である。It is a side view which shows the preliminary seedling mounting part provided with an empty box transfer rail. 植付クラッチを示す側面図である。It is a side view which shows a planting clutch.

この発明の実施の一形態を、以下に説明する。
図１及び図２は本発明を用いた一実施例である苗植機となる施肥装置付き乗用型田植機の側面図と平面図である。この施肥装置付き乗用型田植機１は、走行車体２の後側に昇降リンク装置３を介して苗植付部４が昇降可能に装着され、走行車体２の後部上側に施肥装置５の本体部分が設けられている。 One embodiment of the present invention will be described below.
FIG.1 and FIG.2 is the side view and top view of the riding type rice transplanter with a fertilizer device used as the seedling transplanter which is one Example using this invention. In this riding type rice transplanter 1 with a fertilizer application, a seedling planting portion 4 is mounted on the rear side of the traveling vehicle body 2 via an elevating link device 3 so that the seedling planting portion 4 can be moved up and down. Is provided.

走行車体２は、駆動輪である左右一対の前輪１０，１０及び左右一対の後輪１１，１１を備えた四輪駆動車両であって、機体の前部にミッションケース１２が配置され、そのミッションケース１２の左右側方に各々左右フロントアクスルケース１３ａ，１３ａを設けて、該左右フロントアクスルケース１３ａ，１３ａに各々左右前輪ファイナルケース１３，１３が設けられ、該左右前輪ファイナルケース１３，１３の操向方向を変更可能な各々の前輪支持部から外向きに突出する左右前輪車軸１０ａ，１０ａに左右前輪１０，１０が各々取り付けられている。また、ミッションケース１２の背面部にメインフレーム１５の前端部が固着されており、そのメインフレーム１５の後端左右中央部に前後水平に設けた後輪ローリング軸Ａが設けられている。   The traveling vehicle body 2 is a four-wheel drive vehicle including a pair of left and right front wheels 10 and 10 and a pair of left and right rear wheels 11 and 11 as drive wheels, and a transmission case 12 is disposed at the front of the fuselage. Left and right front axle cases 13a and 13a are provided on the left and right sides of the case 12, respectively, and left and right front wheel final cases 13 and 13 are provided on the left and right front axle cases 13a and 13a, respectively. The left and right front wheels 10, 10 are respectively attached to the left and right front wheel axles 10a, 10a projecting outward from the respective front wheel support portions whose direction can be changed. A front end portion of the main frame 15 is fixed to the rear portion of the mission case 12, and a rear wheel rolling shaft A provided horizontally in the front-rear direction is provided at the left and right center of the rear end of the main frame 15.

左右後輪ギヤケース１８，１８は連結フレーム１９ａで一体に連結されて、後輪支持部材としての後輪伝動ケース１９が構成されている。
後輪伝動ケース１９は、その左右中央部が前記後輪ローリング軸Ａに回動自在に支持され、左右後輪ギヤケース１８，１８から各々外向きに突出する後輪車軸１１ａ，１１ａに後輪１１，１１が取り付けられている。尚、左右後輪ギヤケース１８，１８には、ミッションケース１２の後壁から突出して設けた左右後輪駆動軸に連結した左右後輪伝動軸１８ｂ，１８ｂにて動力が伝達される構成となっている。 The left and right rear wheel gear cases 18, 18 are integrally connected by a connecting frame 19a to constitute a rear wheel transmission case 19 as a rear wheel support member.
The rear wheel transmission case 19 has a left and right central portion rotatably supported by the rear wheel rolling shaft A, and the rear wheel axles 11a and 11a projecting outward from the left and right rear wheel gear cases 18 and 18, respectively. , 11 are attached. Note that power is transmitted to the left and right rear wheel gear cases 18 and 18 through left and right rear wheel transmission shafts 18b and 18b connected to left and right rear wheel drive shafts that protrude from the rear wall of the transmission case 12. Yes.

エンジン２０はメインフレーム１５の上に搭載されており、該エンジン２０の回転動力が、ベルト伝動装置２１及び油圧式無段変速装置２３を介してミッションケース１２に伝達される。ミッションケース１２に伝達された回転動力は、該ケース１２内のトランスミッションにより変速された後、走行動力と外部取出動力に分離して取り出される。そして、走行動力は、一部が前輪ファイナルケース１３，１３に伝達されて前輪１０，１０を駆動すると共に、残りが左右後輪ギヤケース１８，１８に伝達されて左右後輪１１，１１を駆動する。また、ミッションケース１２の右側側面より取出された外部取出動力は、植付伝動軸２６によって苗植付部４へ伝動される。尚、エンジン２０のマフラー２０ａはエンジン２０の左側で左リンクベースフレーム４２の近くの外側に配置されており、エンジン２０を冷却する冷却ファンはエンジン２０の右側面にあって冷却風は機体右側から左側に排風される構成となっている。   The engine 20 is mounted on the main frame 15, and the rotational power of the engine 20 is transmitted to the transmission case 12 via a belt transmission 21 and a hydraulic continuously variable transmission 23. The rotational power transmitted to the mission case 12 is shifted by a transmission in the case 12 and then separated into traveling power and external power to be extracted. A part of the traveling power is transmitted to the front wheel final cases 13 and 13 to drive the front wheels 10 and 10, and the rest is transmitted to the left and right rear wheel gear cases 18 and 18 to drive the left and right rear wheels 11 and 11. . Further, the external extraction power extracted from the right side surface of the mission case 12 is transmitted to the seedling planting unit 4 by the planting transmission shaft 26. The muffler 20a of the engine 20 is disposed outside the left link base frame 42 on the left side of the engine 20, the cooling fan for cooling the engine 20 is on the right side of the engine 20, and the cooling air is supplied from the right side of the body. It is configured to exhaust to the left.

エンジン２０は、複数のエンジンシリンダ（気筒）を備えると共に、電子燃料噴射制御装置を備えている。そして、副変速レバーにより走行速度が高速となる路上走行速に設定されているときやエンジン回転数がアイドリングに設定されているときは、電子燃料噴射制御装置により、複数のエンジンシリンダのうちの一部のエンジンシリンダにのみ燃料を供給する構成としており、燃費の向上を図っている。   The engine 20 includes a plurality of engine cylinders (cylinders) and an electronic fuel injection control device. When the road speed is set to a high speed by the auxiliary transmission lever or when the engine speed is set to idling, the electronic fuel injection control device controls one of the engine cylinders. The fuel is supplied only to the engine cylinder of the part, and the fuel efficiency is improved.

植付伝動軸２６の中途部には植付クラッチケースを設けており、該植付クラッチケース内には苗植付部４への伝動を入切する植付クラッチ１６９を設けている。この植付クラッチ１６９は、爪クラッチであり、駆動側の駆動クラッチ爪体１７０と従動側の従動クラッチ爪体１７１を備えている。そして、従動クラッチ爪体１７１の回転における外周面には該従動クラッチ爪体１７１を回転軸１７２の方向に移動させるための操作溝１７１ａを設けており、該操作溝１７１ａに対向する操作ピン１７３が挿入される構成となっている。従って、操作ピン１７３が操作溝１７１ａに挿入されると、従動クラッチ爪体１７１の正方向の回転により該従動クラッチ爪体１７１が操作溝１７１ａの正転用の斜めの案内面１７１ｂにより駆動クラッチ爪体１７０から離れる側に移動し、従動クラッチ爪体１７１が正転用の所定位置に回転するとクラッチ爪の噛み合いが外れて従動クラッチ爪体１７１の回転が停止する定位置停止クラッチとなっている。これにより、苗植付部４の後述する苗植付装置５２を所定の位相で停止させることができる。更に、機体の後進時には、従動クラッチ爪体１７１が逆方向に回転することとなるが、操作ピン１７３が操作溝１７１ａに挿入され、従動クラッチ爪体１７１の逆方向の回転により該従動クラッチ爪体１７１が操作溝１７１ａの逆転用の斜めの案内面１７１ｃにより駆動クラッチ爪体１７０から離れる側に移動し、従動クラッチ爪体１７１が逆転用の所定位置に回転するとクラッチ爪の噛み合いが外れて従動クラッチ爪体１７１の回転が停止する。これにより、苗植付部４が逆方向に作動するのを防止し、後進時には苗植付部４の駆動が確実に停止するように構成している。この構成を採用することにより、クラッチの伝達効率を向上させて苗植付部４の作動を適正にするべく、クラッチ爪の噛合面を回転法線方向に向けることができる。従来は、逆転側のクラッチ爪の噛合面を傾斜面で構成し、植付クラッチが逆転するときには、前記傾斜面により従動クラッチ爪体を駆動クラッチ爪体から離れる側に移動させて伝動を断つ構成としていたので、疎植時に植付伝動軸を不等速回転させるとき、植付時における植付クラッチの正転により前記傾斜面で受動クラッチ爪体が滑り、苗植付部４が脈動して不適正に作動するおそれがある。尚、従動クラッチ爪体１７１の前記正転用の所定位置と前記逆転用の所定位置は近い位置に設定されているので、いずれの位置で停止しても苗植付装置５２の位相は略同じにでき、後進時でも下方に突出した苗植付装置５２が路面に干渉して破損したりするようなことを防止できる。   A planting clutch case is provided in the middle of the planting transmission shaft 26, and a planting clutch 169 for turning on and off transmission to the seedling planting unit 4 is provided in the planting clutch case. This planting clutch 169 is a claw clutch and includes a drive clutch claw body 170 on the drive side and a driven clutch claw body 171 on the driven side. An operation groove 171a for moving the driven clutch claw body 171 in the direction of the rotating shaft 172 is provided on the outer peripheral surface of the rotation of the driven clutch claw body 171, and an operation pin 173 facing the operation groove 171a is provided. It is configured to be inserted. Therefore, when the operation pin 173 is inserted into the operation groove 171a, the driven clutch pawl body 171 is rotated by the forward rotation of the driven clutch pawl body 171 by the oblique guide surface 171b for forward rotation of the operation groove 171a. When the driven clutch pawl body 171 rotates to a predetermined position for forward rotation, the clutch pawl is disengaged and the driven clutch pawl body 171 stops rotating. Thereby, the seedling planting device 52 described later of the seedling planting unit 4 can be stopped at a predetermined phase. Further, when the aircraft is moving backward, the driven clutch pawl 171 rotates in the reverse direction. However, the operation pin 173 is inserted into the operation groove 171a, and the driven clutch pawl 171 rotates in the reverse direction. When the driven clutch pawl body 171 is rotated to a predetermined position for reverse rotation, the clutch pawl is disengaged and the driven clutch is moved. The rotation of the nail body 171 stops. This prevents the seedling planting unit 4 from operating in the reverse direction, and the driving of the seedling planting unit 4 is surely stopped during reverse travel. By adopting this configuration, the meshing surface of the clutch pawl can be directed in the direction of the rotation normal in order to improve the transmission efficiency of the clutch and make the operation of the seedling planting part 4 appropriate. Conventionally, the meshing surface of the reverse clutch pawl is configured with an inclined surface, and when the planting clutch rotates in reverse, the driven clutch pawl body is moved away from the drive clutch pawl body by the inclined surface to cut off the transmission. Therefore, when the planting transmission shaft is rotated at a non-uniform speed during sparse planting, the passive clutch claw body slides on the inclined surface due to normal rotation of the planting clutch during planting, and the seedling planting part 4 pulsates. May operate improperly. Since the predetermined position for forward rotation and the predetermined position for reverse rotation of the driven clutch pawl 171 are set close to each other, the phase of the seedling planting device 52 is substantially the same regardless of the position at which it stops. It is possible to prevent the seedling planting device 52 protruding downward from being interfered with the road surface and being damaged even when the vehicle is moving backward.

また、植付クラッチ１６９とは別に、植付伝動軸２６の中途部に安全クラッチを設け、苗植付部４の駆動負荷が大きいときにはその負荷により安全クラッチが作動して、苗植付部４への伝動を断つようにしている。尚、安全クラッチは、正転側及び逆転側の何れの負荷でも作動する構成となっている。安全クラッチの作動状態を検出する安全クラッチ作動検出センサを設け、安全クラッチの作動に連動して油圧式無段変速装置２３を作動させて機体の走行を停止させる構成となっている。これにより、苗植付部４による植付を行わないまま、機体を走行させることを防止している。尚、後進時は、安全クラッチが作動しても機体の走行を停止させない構成としており、無闇に走行停止するのを防止している。   In addition to the planting clutch 169, a safety clutch is provided in the middle of the planting transmission shaft 26, and when the driving load of the seedling planting unit 4 is large, the safety clutch is activated by the load, and the seedling planting unit 4. I try to break the transmission to. The safety clutch is configured to operate with any load on the forward rotation side and the reverse rotation side. A safety clutch operation detection sensor for detecting the operating state of the safety clutch is provided, and the hydraulic continuously variable transmission 23 is operated in conjunction with the operation of the safety clutch to stop the vehicle from traveling. This prevents the aircraft from running without planting by the seedling planting unit 4. When the vehicle is moving backward, the vehicle is prevented from stopping traveling even if the safety clutch is activated, thereby preventing the vehicle from stopping in a dark manner.

エンジン２０の上部はエンジンカバー３０で覆われており、その上に座席３１が設置されている。座席３１の前方には各種操作機構を内蔵するフロントカバー３２があり、その上方に前輪１０，１０を操向操作するハンドル３４が設けられている。エンジンカバー３０及びフロントカバー３２の下端左右両側は水平状のフロアステップ３５になっている。フロアステップ３５の左右側には貫通孔が多数設けられた格子状部３５ａ・３５ａが形成されており、座席３１に着座して機体を操縦する操縦者が左右前輪１０，１０を見通せることができて操縦が容易な構成となっていると共に、該ステップ３５を歩く作業者の靴についた泥が圃場に落下するようになっている。フロアステップ３５の後部は、リヤステップを兼ねる後輪フェンダ３６となっている。   The upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is installed thereon. A front cover 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheels 10 and 10 is provided above the front cover 32. The engine cover 30 and the front cover 32 have horizontal floor steps 35 on the left and right sides of the lower end. The left and right sides of the floor step 35 are formed with lattice-like portions 35a and 35a provided with a large number of through holes, so that a driver sitting on the seat 31 and maneuvering the aircraft can see the left and right front wheels 10 and 10. Therefore, the mud on the shoe of the worker walking in the step 35 falls on the field. The rear portion of the floor step 35 is a rear wheel fender 36 that also serves as a rear step.

メインフレーム１５の上方には左右上部フレーム１５ａ，１５ａが設けられており、フロアステップ３５は該左右の上部フレーム１５ａ，１５ａに支持されている。そして、左右の上部フレーム１５ａ，１５ａは、その前端部がミッションケース１２の前部に連結支持されて機体左右方向に設けた前部フレーム１５ｂに連結されており、その中途部が左右の支持フレーム１５ｃ，１５ｃを介して各々左右のフロントアクスルケース１３ａ，１３ａに連結されている。また、左右の上部フレーム１５ａ，１５ａの後端部は、後述のメインフレーム１５の後端部に立設した背面視門形のリンクベースフレーム４２に連結している。従って、ミッションケース１２，メインフレーム１５，左右の上部フレーム１５ａ・１５ａ，前部フレーム１５ｂ，左右の支持フレーム１５ｃ・１５ｃ，左右のフロントアクスルケース１３ａ・１３ａ，リンクベースフレーム４２により枠状の機体フレームが構成されている。   Left and right upper frames 15a and 15a are provided above the main frame 15, and the floor step 35 is supported by the left and right upper frames 15a and 15a. The left and right upper frames 15a and 15a are connected and supported at the front end of the transmission case 12 to the front part of the mission case 12, and are connected to the front frame 15b provided in the left and right direction of the machine body. The left and right front axle cases 13a and 13a are connected to each other through 15c and 15c. In addition, the rear end portions of the left and right upper frames 15a, 15a are connected to a rear-view portal-shaped link base frame 42 erected on the rear end portion of the main frame 15 described later. Therefore, a frame-shaped body frame is constituted by the transmission case 12, the main frame 15, the left and right upper frames 15a and 15a, the front frame 15b, the left and right support frames 15c and 15c, the left and right front axle cases 13a and 13a, and the link base frame 42. Is configured.

また、走行車体２の左右両側には、予備苗載台３８，３８が設けられている。
昇降リンク装置３は平行リンク構成であって、左右一対の上リンク４０，４０と左右一対の下リンク４１，４１を備えている。これらリンク４０，４１は、その基部側がメインフレーム１５の後端部に立設した背面視門形のリンクベースフレーム４２に回動自在に取り付けられ、先端側には縦リンク４３が連結されている。そして、縦リンク４３の下端部に苗植付部４に回転自在に支承された連結軸４４が挿入連結され、連結軸４４を中心として苗植付部４がローリング自在に連結されている。メインフレーム１５に基部を回動自在に枢支した昇降油圧シリンダ４６の先端を下リンク４１，４１に一体形成したスイングアーム４１ａの先端部に連結して設けており、該昇降油圧シリンダ４６を油圧で伸縮させることにより、昇降リンク装置３が上下に回動し、苗植付部４がほぼ一定姿勢のまま昇降する。 In addition, on the left and right sides of the traveling vehicle body 2, preliminary seedling platforms 38, 38 are provided.
The elevating link device 3 has a parallel link configuration, and includes a pair of left and right upper links 40 and 40 and a pair of left and right lower links 41 and 41. The links 40 and 41 are pivotally attached to a rear-view portal-shaped link base frame 42 erected on the rear end of the main frame 15 on the base side, and a vertical link 43 is connected to the tip side. . And the connecting shaft 44 rotatably supported by the seedling planting part 4 is inserted and connected to the lower end part of the vertical link 43, and the seedling planting part 4 is connected so as to be able to roll around the connecting shaft 44. The tip of a lifting hydraulic cylinder 46 pivotally supported by the main frame 15 is connected to the tip of a swing arm 41a formed integrally with the lower links 41, 41. The lifting hydraulic cylinder 46 is hydraulically connected. By elongating and contracting, the elevating link device 3 rotates up and down, and the seedling planting unit 4 moves up and down while maintaining a substantially constant posture.

苗植付部４は６条植の構成で、フレームを兼ねる伝動ケース５０、マット苗を載せて左右往復動し苗を一株分づつ各条の苗取出口５１ａ…に供給するとともに横一列分の苗を全て苗取出口５１ａ…に供給すると苗送りベルト５１ｂ…により苗を下方に移送する苗載台５１、苗取出口５１ａ…に供給された苗を圃場に植付ける苗植付装置５２…、次行程における機体進路を表土面に線引きする左右一対の線引きマーカ５３，５３等を備えている。苗植付部４の下部には中央にセンターフロート５５、その左右両側にサイドフロート５６，５６がそれぞれ設けられている。これらフロート５５，５６，５６を圃場の泥面に接地させた状態で機体を進行させると、フロート５５，５６，５６が泥面を整地しつつ滑走し、その整地跡に苗植付装置５２…により苗が植付けられる。各フロート５５，５６，５６は圃場表土面の凹凸に応じて前端側が上下動するように回動自在に取り付けられており、植付作業時にはセンターフロート５５の前部の上下動が制御センサ（図示せず）により検出され、その検出結果に応じ前記昇降油圧シリンダ４６を制御する油圧バルブを切り替えて苗植付部４を昇降させることにより、苗の植付深さを常に一定に維持する。   The seedling planting section 4 has a six-row planting structure, a transmission case 50 that also serves as a frame, a mat seedling, and a left and right reciprocating motion to supply seedlings one by one to the seedling outlet 51a of each row and for one horizontal row When all the seedlings are supplied to the seedling outlet 51a ..., the seedling mount 51 for transferring the seedling downward by the seedling feeding belt 51b ..., the seedling planting device 52 for planting the seedling supplied to the seedling outlet 51a ... in the field. A pair of left and right drawing markers 53, 53 and the like for drawing the aircraft path in the next stroke to the topsoil surface are provided. In the lower part of the seedling planting part 4, a center float 55 is provided in the center, and side floats 56, 56 are provided on the left and right sides thereof. When the aircraft is advanced with these floats 55, 56, 56 in contact with the mud surface of the field, the floats 55, 56, 56 slide while leveling the mud surface, and the seedling planting device 52 ... Seedlings are planted. Each float 55, 56, 56 is rotatably mounted so that the front end side moves up and down according to the unevenness of the soil surface of the field, and the vertical movement of the front part of the center float 55 is controlled by a control sensor (see FIG. The planting depth of the seedling is always maintained constant by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 according to the detection result to raise and lower the seedling planting unit 4.

苗載台５１は、前記苗取出口５１ａを形成する苗受け板１２０に沿って左右移動し、苗を順次苗取出口５１ａへ供給する構成となっている。苗受け板１２０の裏面側には、苗載台５１と苗受け板１２０の間の隙間に苗床から脱落した土が侵入又は付着したことを検出する土感知センサ１７４を設けている。この土感知センサ１７４により、前記隙間に土が侵入又は付着しているときは、警報ランプ等によりオペレータに警報する。これにより、前記隙間に侵入した土を除去することができ、前記隙間に土が詰まることにより苗載台５１の左右移動が不適正になったり苗載台５１が破損したりするようなことを防止できる。尚、土感知センサ１７４は、苗載台５１と苗受け板１２０が重複する部分の隙間に対向する位置に配置されている。   The seedling stage 51 is configured to move left and right along the seedling receiving plate 120 that forms the seedling outlet 51a and sequentially supply seedlings to the seedling outlet 51a. On the back surface side of the seedling receiving plate 120, a soil sensing sensor 174 is provided for detecting that the soil that has fallen from the seedbed has entered or adhered to the gap between the seedling placing stand 51 and the seedling receiving plate 120. The soil detection sensor 174 warns the operator with an alarm lamp or the like when soil enters or adheres to the gap. As a result, the soil that has entered the gap can be removed, and when the gap is clogged with soil, the right and left movement of the seedling stage 51 becomes inappropriate or the seedling stage 51 is damaged. Can be prevented. In addition, the soil detection sensor 174 is arrange | positioned in the position facing the clearance gap of the part which the seedling mounting stand 51 and the seedling receiving plate 120 overlap.

施肥装置５は、肥料ホッパ６０に貯留されている粒状の肥料を繰出部６１…によって一定量づつ繰り出し、その肥料を施肥ホース６２…でフロート５５，５６，５６の左右両側に取り付けた施肥ガイド６２ａ…まで導き、施肥ガイド６２ａ…の前側に設けた作溝体６２ｂ…によって苗植付条の側部近傍に形成される施肥構内に落とし込むようになっている。電動モータで駆動するブロア５８で発生させたエアが、左右方向に長いエアチャンバ５９を経由して施肥ホース６２…に吹き込まれ、施肥ホース６２…内の肥料を風圧で強制的に各フロート５５，５６，５６に設けた各施肥ガイド６２ａ…に搬送するようになっている。   The fertilizer applicator 5 feeds the granular fertilizer stored in the fertilizer hopper 60 by a certain amount by the feeding section 61... And applies the fertilizer to the left and right sides of the floats 55, 56 and 56 with the fertilizer hose 62. Are guided into the fertilization premises formed near the side portion of the seedling planting line by the grooved body 62b provided on the front side of the fertilizer application guide 62a. Air generated by a blower 58 driven by an electric motor is blown into a fertilizer hose 62 through an air chamber 59 that is long in the left-right direction, and the fertilizer in the fertilizer hose 62 is forcibly forced by wind pressure to each float 55, It conveys to each fertilization guide 62a ... provided in 56,56.

苗植付部４には圃場の乱れた泥土面を整地して均す整地ロータ２７（左右のサイドフロート５６，５６の各々の前方に配置された左右の整地ロータ２７ａ，２７ａ，センターフロート５５の前方に配置された中央整地ロータ２７ｂ）が取り付けられている。この整地ロータ２７は、前記右後輪ギヤケース１８に整地ロータ駆動用ケースを設けて、右後輪ギヤケース１８から駆動力が伝動軸２７ｃにて伝動される構成となっている。   The seedling planting unit 4 includes a leveling rotor 27 for leveling and leveling the mud surface with a disordered field (left and right leveling rotors 27a and 27a disposed in front of the left and right side floats 56 and 56, and a center float 55). A central leveling rotor 27b) arranged in front is attached. The leveling rotor 27 is configured such that a leveling rotor driving case is provided in the right rear wheel gear case 18 so that a driving force is transmitted from the right rear wheel gear case 18 by a transmission shaft 27c.

６３，６３は上部フレーム１５ａに上端基部が溶接固定された鉄製の左右の補助ステップであって、作業者が機体に乗り降りする時に足を載せるステップである。
ここで、図に基づいて、機体の左右両側に作業者の作業通路Ｂ，Ｂを形成するフロアステップ３５の左右両側に配置されている左右の予備苗載台３８，３８の構成を説明する。 Reference numerals 63 and 63 are iron left and right auxiliary steps whose upper end base is welded and fixed to the upper frame 15a, and are steps for placing a foot when an operator gets on and off the aircraft.
Here, based on the drawings, the configuration of the left and right standby seedling platforms 38, 38 disposed on the left and right sides of the floor step 35 that forms the operator's work paths B, B on the left and right sides of the machine body will be described.

左右の予備苗載台３８，３８は、前部フレーム１５ｂの左右側部に各々左右の予備苗載台支持フレーム７０，７０の基部をボルト７１…にて固定し、左右の予備苗載台支持フレーム７０，７０の上部に各々左右の予備苗載部７２，７２と左右の副予備苗載部１５０，１５０と左右の苗箱収納部７３，７３を回動及び固定自在に設けている。尚、前述の機体フレームを構成する左右の上部フレーム１５ａ，１５ａと左右のフロントアクスルケース１３ａ，１３ａに連結した左右の支持フレーム１５ｃ，１５ｃから機体左右外側方向に向けて左右の支持体７４，７４を設けて、左右の予備苗載台支持フレーム７０，７０の上部と左右の支持体７４，７４の先端部とを各々連結体７５，７５にて連結して、左右の予備苗載台支持フレーム７０，７０を補強している。   The left and right spare seedling platforms 38 and 38 are fixed to the left and right side portions of the front frame 15b with the bases of the left and right preliminary seedling platform supports 70 and 70 with bolts 71, respectively. The left and right auxiliary seedling mounting parts 72, 72, the left and right auxiliary preliminary seedling mounting parts 150, 150, and the left and right seedling box storage parts 73, 73 are rotatably and fixedly provided on the upper portions of the frames 70, 70, respectively. It should be noted that the left and right support bodies 74, 74 from the left and right support frames 15c, 15c connected to the left and right upper frames 15a, 15a and the left and right front axle cases 13a, 13a constituting the above-described body frame toward the left and right outer sides of the body. And the upper parts of the left and right auxiliary seedling stage support frames 70 and 70 and the distal ends of the left and right support bodies 74 and 74 are connected by connecting bodies 75 and 75, respectively. 70 and 70 are reinforced.

そして、左右の予備苗載部７２，７２は、平面視で前部の左右間隔Ｌ１が後部の左右間隔Ｌ２よりも小さいハの字状に配置構成し（平面視で左右の予備苗載部７２，７２をハの字状に配置構成して左右間隔Ｌ１を小さくすることにより、機体の旋回半径内に機体前端に位置する左右の予備苗載部７２，７２前端外側を収めることができ、畦ぎわで旋回するときに畦や他の障害物等に左右の予備苗載部７２，７２前端部が接当して破損することが防止できる）、左右の苗箱収納部７３，７３も、平面視で前部の左右間隔Ｌ３が後部の左右間隔Ｌ４よりも小さいハの字状に配置構成している。また、左右の予備苗載部７２，７２は、側面視で前側が上位で後側が下位となるよう傾斜（後述の第一回動苗載部８９側が上位で第ニ回動苗載部９０側が下位となるよう傾斜）しており、後側の端部を施肥装置５の肥料ホッパ６０上端と略々同じ高さに設けている。   The left and right spare seedling placement parts 72, 72 are arranged in a square shape in which the front left-right distance L1 is smaller than the rear left-right distance L2 in plan view (left and right spare seedling placement parts 72 in plan view). , 72 are arranged in the shape of a square and the left-right distance L1 is reduced, so that the outer sides of the left and right auxiliary seedling mounting portions 72, 72 located at the front end of the body can be accommodated within the turning radius of the body. The left and right spare seedling mounting parts 72, 72 can be prevented from coming into contact with and damaging the ridges and other obstacles when turning at the edge), and the left and right seedling box storage parts 73, 73 are also flat. The left and right distance L3 at the front part is arranged and configured in a square shape smaller than the left and right distance L4 at the rear part. In addition, the left and right auxiliary seedling mounting parts 72 and 72 are inclined so that the front side is higher and the rear side is lower in side view (the first rotating seedling mounting part 89 side described below is higher and the second rotating seedling mounting part 90 side is higher). The rear end is provided at substantially the same height as the upper end of the fertilizer hopper 60 of the fertilizer applicator 5.

左右の予備苗載台３８，３８の構成は左右対称であり、左右の予備苗載部７２，７２及び左右の苗箱収納部７３，７３の構成は左右対称で同じであるから、以下に右の予備苗載台３８の構成を詳細に説明する（左の予備苗載台３８は、右の予備苗載台３８と左右対称で同じ構成である）。   The configuration of the left and right auxiliary seedling mounts 38 and 38 is bilaterally symmetric, and the configuration of the left and right auxiliary seedling mounting units 72 and 72 and the left and right seedling box storage units 73 and 73 are bilaterally symmetrical and the same. The configuration of the preliminary seedling stage 38 will be described in detail (the left preliminary seedling stage 38 is symmetrical and has the same configuration as the right preliminary seedling stage 38).

予備苗載台支持フレーム７０の上部に間隔を空けて上板７６と下板７７を溶接固定し、該上板７６と下板７７の平面視で同じ位置に各々貫通穴７６ａ，７７ａを設け、該貫通穴７６ａ，７７ａに回動フレーム７８に固定して設けた回動ピン７９を上方から挿入して、回動フレーム７８が予備苗載台支持フレーム７０に対して、自由に回動できる構成にしている。   The upper plate 76 and the lower plate 77 are welded and fixed at an upper portion of the preliminary seedling support frame 70, and through holes 76a and 77a are provided at the same position in plan view of the upper plate 76 and the lower plate 77, respectively. A rotation pin 79 fixed to the rotation frame 78 is inserted into the through holes 76a and 77a from above, and the rotation frame 78 can freely rotate with respect to the preliminary seedling support frame 70. I have to.

そして、回動フレーム７８の回動ピン７９の周りに円板８０を溶接固定し、該円板８０の同一円周上に貫通孔８１ａと貫通孔８１ｂを回動ピン７９の周りに１８０度空けた位置に設け、更に、貫通孔８１ａの外側方に貫通孔８１ｃを設けている。一方、上板７６と下板７７との間に溶接固定した平面視コ字状の受け具８２に操作レバー８３の基部を上下回動操作自在に枢支ピン８４にて軸支して設け、該操作レバー８３の中途部に回動停止ピン８５を係止ピン８６にて連係させて、操作レバー８３を上下操作すると回動停止ピン８５が上板７６と下板７７に設けた貫通孔７６ｂ，７７ｂに案内されて上下動する構成としている。そして、該回動停止ピン８５が上動した位置では、その上部が前記回動フレーム７８の円板８０に設けた貫通孔８１ａ，８１ｂ，８１ｃに係合して、回動フレーム７８の回動を固定する。尚、下板７７と操作レバー８３の間には圧縮バネ８７が回動停止ピン８５の外周に嵌まった状態で設けられており、操作レバー８３及び回動停止ピン８５は上動した位置に付勢された状態となっている。即ち、回動停止ピン８５が上動して回動フレーム７８の円板８０に設けた貫通孔８１ａ，８１ｂ，８１ｃに係合して、回動フレーム７８の回動を固定した状態で操作レバー８３及び回動停止ピン８５は圧縮バネ８７によって保持されている。従って、作業者は操作レバー８３を下動させて回動停止ピン８５を貫通孔８１ａ，８１ｂ，８１ｃから外して回動フレーム７８を回動させ、作業者が操作レバー８３を離すと操作レバー８３及び回動停止ピン８５は圧縮バネ８７によって上動しようとし、回動フレーム７８を回動させて貫通孔８１ａ，８１ｂ，８１ｃが回動停止ピン８５の位置にくると、自動的に回動停止ピン８５は貫通孔８１ａ，８１ｂ，８１ｃに係合して回動フレーム７８の回動は固定される。   Then, the disk 80 is fixed by welding around the rotation pin 79 of the rotation frame 78, and the through hole 81 a and the through hole 81 b are spaced 180 degrees around the rotation pin 79 on the same circumference of the disk 80. Further, a through hole 81c is provided on the outer side of the through hole 81a. On the other hand, a base portion of an operation lever 83 is provided on a support 82 having a U-shape in plan view welded and fixed between an upper plate 76 and a lower plate 77 and is pivotally supported by a pivot pin 84 so as to be freely rotatable up and down. When the rotation stop pin 85 is linked to the middle portion of the operation lever 83 by the locking pin 86 and the operation lever 83 is operated up and down, the rotation stop pin 85 is provided in the through hole 76b provided in the upper plate 76 and the lower plate 77. , 77b to move up and down. At the position where the rotation stop pin 85 is moved upward, the upper part of the rotation stop pin 85 engages with the through holes 81a, 81b, 81c provided in the disk 80 of the rotation frame 78, so that the rotation frame 78 rotates. To fix. A compression spring 87 is provided between the lower plate 77 and the operation lever 83 in a state where the compression spring 87 is fitted on the outer periphery of the rotation stop pin 85, and the operation lever 83 and the rotation stop pin 85 are in the upwardly moved positions. It is in an energized state. That is, the operation lever is fixed in a state in which the rotation stop pin 85 moves upward to engage with the through holes 81a, 81b, 81c provided in the disk 80 of the rotation frame 78 and the rotation of the rotation frame 78 is fixed. 83 and the rotation stop pin 85 are held by a compression spring 87. Accordingly, the operator moves down the operation lever 83 to remove the rotation stop pin 85 from the through holes 81a, 81b, 81c, and rotates the rotation frame 78. When the operator releases the operation lever 83, the operation lever 83 is released. The rotation stop pin 85 tries to move upward by the compression spring 87. When the through frame 81a, 81b, 81c comes to the position of the rotation stop pin 85 by rotating the rotation frame 78, the rotation stop is automatically stopped. The pin 85 engages with the through holes 81a, 81b, 81c, and the rotation of the rotation frame 78 is fixed.

予備苗載部７２は、中央の固定苗載部８８とその前後に設けた第一回動苗載部８９・第ニ回動苗載部９０とによって構成されている。これらの固定苗載部８８、第一回動苗載部８９及び第ニ回動苗載部９０の各々の長さは、略同一であり、概ね１枚分の苗が載る長さ（約６０ｃｍ）になっている。従って、予備苗載部７２は、３枚の苗箱Ｃ又は苗掬い板を連続して載置でき、前記苗箱Ｃ又は苗掬い板をスライドさせて移動させることができる。中央の固定苗載部８８は、アルミ製凹状型材よりなる左右の外枠９１，９１と該左右の外枠９１，９１を連結する鉄製の連結材９２…（左右の外枠９１，９１と連結材９２…は、ボルト９３…で固定されている）でフレームを構成し、左右の外枠９１，９１間の左右中央部には苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）の底面を受けて予備苗載部７２の長手方向に案内する鉄製の案内受け材９４を前記連結材９２…に溶接固定して設けている。案内受け材９４の前後端は下方に折り曲げて構成しており、苗箱Ｃが移動する際に苗箱Ｃ前後壁面が案内受け材９４の前後端に接当しないようにして、スムーズに苗箱Ｃが移動できるようにしている。また、該案内受け材９４の前後端部には、樹脂製のキャップ９４ａを被せている。そして、図８に示すように、該案内受け材９４の上面は左右に配置される回動ローラ９５の上端部よりも低い位置になるように配置されており、予備苗載部７２上を苗箱Ｃが左右の回動ローラ９５…にて移動する際に、苗箱Ｃの左右中央部の下方への撓み部を受けると共に、苗箱Ｃが予備苗載部７２に適正に載っていない場合に苗箱Ｃが予備苗載部７２から下方へ落下することを防止する。   The preliminary seedling placement part 72 is composed of a central fixed seedling placement part 88 and a first turning seedling placing part 89 and a second turning seedling placing part 90 provided before and after that. The lengths of the fixed seedling placing part 88, the first turning seedling placing part 89 and the second turning seedling placing part 90 are substantially the same, and the length (about 60 cm) on which approximately one seedling is placed. )It has become. Therefore, the preliminary seedling placement unit 72 can continuously place three seedling boxes C or seedling seedling plates, and can slide and move the seedling box C or seedling seedling boards. The center fixed seedling mounting portion 88 includes left and right outer frames 91, 91 made of an aluminum concave mold material, and iron connecting members 92 that connect the left and right outer frames 91, 91 (connected to the left and right outer frames 91, 91). The material 92... Is fixed by bolts 93... And a seedling box C (or a mat-like seedling is removed from the seedling box C in the middle of the left and right outer frames 91, 91. An iron guide receiving material 94 that receives the bottom surface of the seedling sowing plate and guides it in the longitudinal direction of the preliminary seedling mounting portion 72 is provided by welding and fixing to the connecting material 92. The front and rear ends of the guide receiving material 94 are configured to be bent downward, and when the seedling box C moves, the front and rear walls of the seedling box C do not come into contact with the front and rear ends of the guide receiving material 94, so that the seedling box can be smooth. C can move. The front and rear ends of the guide receiving member 94 are covered with a resin cap 94a. As shown in FIG. 8, the upper surface of the guide receiving member 94 is arranged to be lower than the upper end portion of the rotating roller 95 arranged on the left and right, and the seedling placing portion 72 is placed on the seedling placing portion 72. When the box C is moved by the left and right rotating rollers 95..., It receives a downward bending portion of the left and right center part of the seedling box C and the seedling box C is not properly placed on the preliminary seedling mounting part 72. Then, the seedling box C is prevented from falling downward from the preliminary seedling mounting portion 72.

左右の外枠９１，９１の凹状部には、複数の回動ローラ９５…を枢支軸９６…にて回転自在に装着し、該複数の回動ローラ９５…が苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）の底面を受けて回転し、予備苗載部７２の長手方向に苗箱Ｃがスムーズに移動できるようにしている。そして、左右の各外枠９１，９１の前後端部に上方に突出する固定側アーム９７…をボルト９８…にて固定して設けている。第一回動苗載部８９側の各固定側アーム９７…の上端部には貫通孔９７ａ…が設けられ、第ニ回動苗載部９０側の各固定側アーム９７…の上端部には回動枢支ピン９７ｂ…が溶接固定して設けられている。   A plurality of rotating rollers 95 are rotatably mounted on the concave portions of the left and right outer frames 91, 91 by pivot shafts 96, and the plurality of rotating rollers 95 are attached to the seedling box C (or a seedling). The seedling box C is rotated in response to the bottom surface of the seedling-seeking plate that has been picked up from the box C so that the seedling box C can move smoothly in the longitudinal direction of the preliminary seedling mounting portion 72. And the fixed side arm 97 ... which protrudes upwards in the front-and-rear end part of each outer frame 91 and 91 on either side is fixed with the volt | bolt 98 .... Through holes 97a are provided at the upper ends of the fixed side arms 97 on the first rotating seedling mounting part 89 side, and the upper ends of the fixed side arms 97 on the second rotating seedling mounting part 90 side are provided. Rotating pivot pins 97b are provided by welding and fixing.

また、左右の外枠９１，９１と連結材９２…と案内受け材９４の間は、広い空間部Ｓとなっており、固定苗載部８８上を移動する苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）に付着した泥土や苗の根は該広い空間部Ｓから下方に落下し、回動ローラ９５に付着したり絡み付いたりすることがなく、回動ローラ９５は適正な自由回転を維持できて、苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）をなめらかに移動させることができる。   Further, a space portion S is formed between the left and right outer frames 91, 91, the connecting member 92, and the guide receiving member 94, and the seedling box C (or the seedling box C) that moves on the fixed seedling mounting portion 88 is formed. The mud and the roots of the seedlings attached to the seedling scooping board from which the mat-like seedlings are removed from the wide space portion S fall downward and do not adhere to or become entangled with the rotating rollers 95. No. 95 can maintain an appropriate free rotation, and can smoothly move the seedling box C (or a seedling-grown plate obtained by picking up a mat-like seedling from the seedling box C).

該中央の固定苗載部８８の連結材９２…に、前記回動フレーム７８の上端部が溶接固定されている。
第一回動苗載部８９は、固定苗載部８８と同様に、アルミ製凹状型材よりなる左右の外枠９１，９１と該左右の外枠９１，９１を連結する鉄製の連結材９２…（左右の外枠９１，９１と連結材９２…は、ボルト９３…で固定されている）でフレームを構成し、左右の外枠９１，９１間の左右中央部には苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）の底面を受けて予備苗載部７２の長手方向に案内する鉄製の案内受け材９４を前記連結材９２…に溶接固定して設けている。案内受け材９４の前後端は下方に折り曲げて構成しており、苗箱Ｃが移動する際に苗箱Ｃ前後壁面が案内受け材９４の前後端に接当しないようにして、スムーズに苗箱Ｃが移動できるようにしている。尚、該案内受け材９４の前後端部には、樹脂製のキャップ９４ａを被せている。 The upper end portion of the rotating frame 78 is fixed by welding to the connecting members 92 of the center fixed seedling mounting portion 88.
Similarly to the fixed seedling mounting portion 88, the first rotating seedling mounting portion 89 has left and right outer frames 91, 91 made of an aluminum concave mold material and an iron connecting material 92 that connects the left and right outer frames 91, 91. (The left and right outer frames 91, 91 and the connecting members 92 ... are fixed by bolts 93 ...), and the seedling box C (or An iron guide receiving material 94 that receives the bottom surface of the seedling sowing plate from the seedling box C and guides it in the longitudinal direction of the preliminary seedling mounting portion 72 is welded and fixed to the connecting material 92. Yes. The front and rear ends of the guide receiving material 94 are configured to be bent downward, and when the seedling box C moves, the front and rear walls of the seedling box C do not come into contact with the front and rear ends of the guide receiving material 94, so that the seedling box can be smooth. C can move. The front and rear ends of the guide receiving member 94 are covered with a resin cap 94a.

左右の外枠９１，９１の凹状部には、複数の回動ローラ９５…を枢支軸９６…にて回転自在に装着し、該複数の回動ローラ９５…が苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）の底面を受けて回転し、予備苗載部７２の長手方向に苗箱Ｃがスムーズに移動できるようにしている。そして、左右の各外枠９１，９１の固定苗載部８８側の端部に上方に突出する第一回動側アーム９９…をボルト１００…にて固定して設けている。各第一回動側アーム９９…の上端部には回動枢支ピン９９ａ…が溶接固定して設けられており、該回動枢支ピン９９ａ…を前記固定苗載部８８の固定側アーム９７…の貫通孔９７ａ…に挿入して外側部を割りピン９９ｂ…にて抜け止めして、第一回動苗載部８９が固定苗載部８８と同一平面上に位置する展開作業状態と固定苗載部８８の上方に回動して折り畳んだ収納状態とに変更できる構成となっている。   A plurality of rotating rollers 95 are rotatably mounted on the concave portions of the left and right outer frames 91, 91 by pivot shafts 96, and the plurality of rotating rollers 95 are attached to the seedling box C (or a seedling). The seedling box C is rotated in response to the bottom surface of the seedling-seeking plate that has been picked up from the box C so that the seedling box C can move smoothly in the longitudinal direction of the preliminary seedling mounting portion 72. And the 1st rotation side arm 99 ... which protrudes upwards at the edge part by the side of the fixed seedling mounting part 88 of each right and left outer frames 91 and 91 is fixed with the volt | bolt 100 .... Rotating pivot pins 99a are welded and fixed to the upper ends of the first pivot arms 99, and the pivot pins 99a are fixed to the fixed seed support 88. 97 is inserted into the through-holes 97a, and the outer portion is prevented from being detached by the split pins 99b, so that the first rotating seedling mounting portion 89 is located on the same plane as the fixed seedling mounting portion 88; It is the structure which can be changed into the accommodation state which turned upwards and was folded over the fixed seedling mounting part 88. FIG.

また、左右の外枠９１，９１と連結材９２…と案内受け材９４の間は、広い空間部Ｓとなっており、第一回動苗載部８９上を移動する苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）に付着した泥土や苗の根は該広い空間部Ｓから下方に落下し、回動ローラ９５に付着したり絡み付いたりすることがなく、回動ローラ９５は適正な自由回転を維持できて、苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）をなめらかに移動させることができる。   Further, a space portion S is formed between the left and right outer frames 91, 91, the connecting member 92, and the guide receiving member 94, and the seedling box C (or The mud and the roots of the seedlings attached to the seedling sowing plate that has been picked up from the seedling box C) fall down from the wide space S and do not adhere to or get entangled with the rotating roller 95. The rotation roller 95 can maintain an appropriate free rotation, and can smoothly move the seedling box C (or a seedling-seeking plate obtained by picking up a mat-like seedling from the seedling box C).

第ニ回動苗載部９０は、固定苗載部８８と同様に、アルミ製凹状型材よりなる左右の外枠９１，９１と該左右の外枠９１，９１を連結する鉄製の連結材９２…（左右の外枠９１，９１と連結材９２…は、ボルト９３…で固定されている）でフレームを構成し、左右の外枠９１，９１間の左右中央部には苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）の底面を受けて予備苗載部７２の長手方向に案内する鉄製の案内受け材９４を前記連結材９２…に溶接固定して設けている。案内受け材９４の前後端は下方に折り曲げて構成しており、苗箱Ｃが移動する際に苗箱Ｃ前後壁面が案内受け材９４の前後端に接当しないようにして、スムーズに苗箱Ｃが移動できるようにしている。尚、該案内受け材９４の前後端部には、樹脂製のキャップ９４ａを被せている。   Similarly to the fixed seedling mounting portion 88, the second rotating seedling mounting portion 90 includes left and right outer frames 91, 91 made of an aluminum concave mold material, and an iron connecting material 92 that connects the left and right outer frames 91, 91. (The left and right outer frames 91, 91 and the connecting members 92 ... are fixed by bolts 93 ...), and the seedling box C (or An iron guide receiving material 94 that receives the bottom surface of the seedling sowing plate from the seedling box C and guides it in the longitudinal direction of the preliminary seedling mounting portion 72 is welded and fixed to the connecting material 92. Yes. The front and rear ends of the guide receiving material 94 are configured to be bent downward, and when the seedling box C moves, the front and rear walls of the seedling box C do not come into contact with the front and rear ends of the guide receiving material 94, so that the seedling box can be smooth. C can move. The front and rear ends of the guide receiving member 94 are covered with a resin cap 94a.

左右の外枠９１，９１の凹状部には、複数の回動ローラ９５…を枢支軸９６…にて回転自在に装着し、該複数の回動ローラ９５…が苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）の底面を受けて回転し、予備苗載部７２の長手方向に苗箱Ｃがスムーズに移動できるようにしている。そして、左右の各外枠９１，９１の固定苗載部８８側の端部に上方に突出する第ニ回動側アーム１０１…をボルト１０２…にて固定して設けている。各第ニ回動側アーム１０１…の上端部には貫通孔１０１ａ…が設けられており、該貫通孔１０１ａ…に前記固定苗載部８８の固定側アーム９７…の回動枢支ピン９７ｂ…を挿入して外側部を割りピン９７ｃ…にて抜け止めして、第ニ回動苗載部９０が固定苗載部８８と同一平面上に位置する展開作業状態と固定苗載部８８の上方に回動して折り畳んだ収納状態とに変更できる構成となっている。   A plurality of rotating rollers 95 are rotatably mounted on the concave portions of the left and right outer frames 91, 91 by pivot shafts 96, and the plurality of rotating rollers 95 are attached to the seedling box C (or a seedling). The seedling box C is rotated in response to the bottom surface of the seedling-seeking plate that has been picked up from the box C so that the seedling box C can move smoothly in the longitudinal direction of the preliminary seedling mounting portion 72. And the 2nd rotation side arm 101 ... which protrudes upwards at the edge part by the side of the fixed seedling mounting part 88 of each right and left outer frames 91 and 91 is fixed with the volt | bolt 102 .... A through hole 101a is provided at the upper end of each of the second rotating side arms 101, and the rotating pivot pins 97b of the fixed side arm 97 of the fixed seedling mounting portion 88 are provided in the through holes 101a. Is inserted and the outer portion is prevented from being detached by the split pins 97c, so that the second rotating seedling mounting portion 90 is located on the same plane as the fixed seedling mounting portion 88 and above the fixed seedling mounting portion 88. It is the structure which can be changed into the accommodation state rotated and folded to.

また、左右の外枠９１，９１と連結材９２…と案内受け材９４の間は、広い空間部Ｓとなっており、第ニ回動苗載部９０上を移動する苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）に付着した泥土や苗の根は該広い空間部Ｓから下方に落下し、回動ローラ９５に付着したり絡み付いたりすることがなく、回動ローラ９５は適正な自由回転を維持できて、苗箱Ｃ（若しくは、苗箱Ｃからマット状苗を掬い取った苗掬い板）をなめらかに移動させることができる。   Further, a space portion S is formed between the left and right outer frames 91, 91, the connecting member 92, and the guide receiving member 94, and the seedling box C (or The mud and the roots of the seedlings attached to the seedling sowing plate that has been picked up from the seedling box C) fall down from the wide space S and do not adhere to or get entangled with the rotating roller 95. The rotation roller 95 can maintain an appropriate free rotation, and can smoothly move the seedling box C (or a seedling-seeking plate obtained by picking up a mat-like seedling from the seedling box C).

一方、予備苗載部７２は、予備苗載台支持フレーム７０に対して回動ピン７９の周りに回動固定自在の回動フレーム７８に固定されているので、操作レバー８３を下方に向けて操作して回動停止ピン８５を下動させて回動フレーム７８の円板８０に設けた貫通孔８１ａ，８１ｂ，８１ｃとの係合を外すと、回動ピン７９の周りに自由に回動させることができる。そして、平面視で予備苗載部７２の長手方向の中央から長手方向にずれた位置に回動ピン７９が配置された構成となっており、即ち、回動ピン７９の回動中心から一側端までの距離Ｌ５が回動ピン７９の回動中心から他側端までの距離Ｌ６よりも小さくなるように構成している。   On the other hand, since the preliminary seedling mounting portion 72 is fixed to the rotating frame 78 that can be rotatably fixed around the rotating pin 79 with respect to the preliminary seedling mounting support frame 70, the operation lever 83 is directed downward. When operated, the rotation stop pin 85 is moved downward to disengage the through-holes 81a, 81b, 81c provided in the disk 80 of the rotation frame 78, thereby freely rotating around the rotation pin 79. Can be made. The rotation pin 79 is arranged at a position shifted in the longitudinal direction from the longitudinal center of the preliminary seedling mounting portion 72 in plan view, that is, one side from the rotation center of the rotation pin 79. The distance L5 to the end is configured to be smaller than the distance L6 from the rotation center of the rotation pin 79 to the other end.

従って、予備苗載部７２を図２の状態にして、回動停止ピン８５を回動フレーム７８の円板８０に設けた貫通孔８１ａに係合させて、予備苗載部７２の回動を固定させると、左右の予備苗載部７２，７２は、平面視で前部の左右間隔Ｌ１が後部の左右間隔Ｌ２よりも小さいハの字状に配置され、左右の苗箱収納部７３，７３も、平面視で前部の左右間隔Ｌ３が後部の左右間隔Ｌ４よりも小さいハの字状に配置された状態となり、機体前端からの突出量Ｌ７が小さい状態となる。また、該突出量Ｌ７が小さい状態から左右の予備苗載部７２，７２を各々１８０度回転させて図１１の状態にして、回動停止ピン８５を回動フレーム７８の円板８０に設けた貫通孔８１ｂに係合させて、予備苗載部７２の回動を固定させると、左右の予備苗載部７２，７２は、同様に平面視で前部の左右間隔Ｌ１が後部の左右間隔Ｌ２よりも小さいハの字状に配置され、機体前端からの突出量Ｌ８が大きい状態となる。尚、この時、左右の苗箱収納部７３，７３は、左右の予備苗載部７２，７２から取り外して、左右の予備苗載部７２，７２の内側に前下がり傾斜状態になるように各々装着し直す。   Accordingly, the preliminary seedling placement portion 72 is brought into the state shown in FIG. 2, and the rotation stop pin 85 is engaged with the through hole 81 a provided in the disk 80 of the rotation frame 78 to rotate the preliminary seedling placement portion 72. When fixed, the left and right spare seedling mounting parts 72, 72 are arranged in a square shape in which the left-right distance L1 at the front is smaller than the left-right distance L2 at the rear in plan view. In the plan view, the left and right distance L3 at the front part is arranged in a square shape smaller than the left and right distance L4 at the rear part, and the protruding amount L7 from the front end of the machine body is small. Further, the left and right auxiliary seedling mounting portions 72, 72 are each rotated 180 degrees from the state where the protruding amount L7 is small to the state shown in FIG. 11, and the rotation stop pin 85 is provided on the disk 80 of the rotation frame 78. When engaged with the through-hole 81b and the rotation of the preliminary seedling mounting portion 72 is fixed, the left and right preliminary seedling mounting portions 72 and 72 have the same left and right distance L1 in the front portion as the left and right distance L2 in the rear portion. It is arranged in a smaller C-shape, and the protruding amount L8 from the front end of the body is large. At this time, the left and right seedling box storage parts 73 and 73 are detached from the left and right spare seedling mounting parts 72 and 72, respectively, so that they are inclined forwardly and downwardly inside the left and right preliminary seedling mounting parts 72 and 72, respectively. Re-install.

尚、予備苗載部７２の前後端部、即ち、第一回動苗載部８９の前端部と第ニ回動苗載部９０の後端部には、予備苗載部７２に載置した苗箱Ｃが落下しないように端部苗箱受け杆１０３・１０３が設けられている。   The front and rear end portions of the preliminary seedling placement portion 72, that is, the front end portion of the first turning seedling placement portion 89 and the rear end portion of the second turning seedling placement portion 90 were placed on the preliminary seedling placement portion 72. End seedling box receiving rods 103 and 103 are provided so that the seedling box C does not fall.

回動フレーム７８の上端には、前後方向の回動支点軸１５１，１５１を介して副予備苗載部１５０を設けている。この副予備苗載部１５０は、１枚分の苗すなわち苗箱Ｃ又は苗掬い板を載置する前後方向の長さ（約６０ｃｍ）に設定され、樹脂製であり、苗載面の適宜位置に貫通する空洞孔１５４を設けており、軽量化を図っている。副予備苗載部１５０は、平面視で固定苗載部８８と概ね重複する位置に設けられ、固定苗載部８８と略同じ前後位置で該固定苗載部８８の上方に配置されており、傾斜する予備苗載部７２に対して、略水平に設けられている。回動フレーム７８にはスプリング１５２を引っ掛けるための軸１５３を設けており、該軸１５３と副予備苗載部の間に前記スプリング１５２を設けている。   At the upper end of the rotating frame 78, a auxiliary preliminary seedling mounting portion 150 is provided via rotating fulcrum shafts 151 and 151 in the front-rear direction. The auxiliary spare seed placement unit 150 is set to a length in the front-rear direction (about 60 cm) for placing one seedling, that is, a seedling box C or a seedling sowing board, is made of resin, and is appropriately positioned on the seedling placement surface. A hollow hole 154 is provided to penetrate through to reduce the weight. The auxiliary preliminary seedling mounting portion 150 is provided at a position substantially overlapping with the fixed seedling mounting portion 88 in a plan view, and is disposed above the fixed seedling mounting portion 88 at substantially the same front-rear position as the fixed seedling mounting portion 88, It is provided substantially horizontally with respect to the inclined seedling placing portion 72. The rotating frame 78 is provided with a shaft 153 for hooking the spring 152, and the spring 152 is provided between the shaft 153 and the auxiliary preliminary seedling mounting portion.

副予備苗載部１５０を回動支点軸１５１回りに回動させることにより、前記スプリング１５２が死点越えして、苗載面が略水平となる載置状態と上側に約９０度回動して苗載面が略鉛直方向に沿う退避状態で各々副予備苗載部１５０を保持する構成となっている。   By rotating the auxiliary preliminary seedling mounting portion 150 around the rotation fulcrum shaft 151, the spring 152 exceeds the dead point, and the seedling mounting surface is rotated approximately 90 degrees upward from the mounting state in which the seedling mounting surface is substantially horizontal. The seedling placement surface is configured to hold the auxiliary preliminary seedling placement portions 150 in a retracted state along a substantially vertical direction.

苗箱収納部７３は、上端部が前記固定苗載部８８の内側の外枠９１に固定側アーム９７を取り付けるボルト９８にて共締めして固定されている前方視で凹状の鉄製の前後支持フレーム１１０，１１０と該前後支持フレーム１１０，１１０に溶接固定した５つの平行に設けた鉄製パイプ材１１１ａ，１１１ｂ，１１１ｃ，１１１ｄ，１１１ｅよりなる固定収納部７３ａと該固定収納部７３ａの４つのパイプ材１１１ａ，１１１ｂ，１１１ｃ，１１１ｄ内に挿入されて前下がり方向に移動自在に設けた鉄製棒材１１２ａ，１１２ｂ，１１２ｃ，１１２ｄよりなる可動収納部７３ｂとによって構成されている。上方に位置する棒材１１２ａは、パイプ材１１１ａ内を前下がり方向に移動する直線状部１１２ａ−１と該直線状部前端から下方に向けて折り曲げて延ばした垂下部１１２ａ−２とから構成されている。下方の中間部にある棒材１１２ｂ，１１２ｄは、各々パイプ材１１１ｂ，１１１ｄ内を前下がり方向に移動する直線状部１１２ｂ−１，１１２ｄ−１と該直線状部前端から互いに対向する方向に向けて折り曲げて延ばした対向延設部１１２ｂ−２，１１２ｄ−２とから構成されている。   The seedling box storage portion 73 has an upper end supported by a bolt 98 that attaches a fixed side arm 97 to an outer frame 91 inside the fixed seedling mounting portion 88 and is fixed in a front view. Frame 110, 110 and five parallel pipes 111a, 111b, 111c, 111d, 111e made of iron pipe members 111a, 111b, 111c, 111d, 111e, which are welded and fixed to the front and rear support frames 110, 110, and four pipes of the fixed storage portion 73a It is configured by a movable storage portion 73b made of iron bars 112a, 112b, 112c, and 112d that are inserted into the members 111a, 111b, 111c, and 111d and are provided so as to be movable in the forward and downward direction. The upper bar member 112a is composed of a linear part 112a-1 that moves in the forward downward direction in the pipe member 111a and a hanging part 112a-2 that is bent and extended downward from the front end of the linear part. ing. The rods 112b and 112d in the lower middle part are respectively directed to the linear parts 112b-1 and 112d-1 that move in the forward and downward direction in the pipes 111b and 111d and in a direction facing each other from the front ends of the linear parts. It is comprised from the opposing extension parts 112b-2 and 112d-2 extended by bending.

１１３は位置調節固定用部材であって、上部に鉄製パイプ材１１４を設け、該鉄製パイプ材１１４下部に移動杆１１５を溶接固定している。そして、該移動杆１１５は、鉄製パイプ材１１４から下方に延びて、後方に向けて折れ曲がり、パイプ材１１１ａ〜１１１ｅと平行に後方に延びる直線状部１１５ａが設けられており、該直線状部１１５ａは最下方位置にあるパイプ材１１１ｃの先端下部に溶接固定されたガイド板１１６の貫通孔１１６ａを貫通して設けられている。また、直線状部１１５ａには、収納状態係止用貫通孔１１５ａ−１と突出状態係止用貫通孔１１５ａ−２が設けられている。   Reference numeral 113 denotes a position adjustment fixing member, in which an iron pipe material 114 is provided at the upper portion, and a moving rod 115 is fixed to the lower portion of the iron pipe material 114 by welding. The moving rod 115 extends downward from the iron pipe member 114, bends backward, and is provided with a linear portion 115a extending rearward in parallel with the pipe members 111a to 111e. The linear portion 115a Is provided through the through-hole 116a of the guide plate 116 which is welded and fixed to the lower end of the pipe material 111c at the lowest position. The linear portion 115a is provided with a storage state locking through hole 115a-1 and a protruding state locking through hole 115a-2.

そして、位置調節固定用部材１１３の鉄製パイプ材１１４内に両側方から前記棒材１１２ｂ，１１２ｄの対向延設部１１２ｂ−２，１１２ｄ−２を挿入し、移動杆１１５の鉄製パイプ材１１４から下方に延びた部位に棒材１１２ｃ先端部を溶接固定している。一方、棒材１１２ａの下方に向けて折り曲げて延ばした垂下部１１２ａ−２は、その下部が棒材１１２ｂの対向延設部１１２ｂ−２の内側に接当して下方に落下しないように止められた構成となっている。   Then, the oppositely extending portions 112b-2 and 112d-2 of the rods 112b and 112d are inserted into the iron pipe member 114 of the position adjusting and fixing member 113 from both sides, and downward from the iron pipe member 114 of the movable rod 115. The tip of the bar 112c is fixed by welding to the portion extending in the direction. On the other hand, the hanging part 112a-2 bent and extended downward from the bar 112a is stopped so that the lower part abuts on the inner side of the opposing extending part 112b-2 of the bar 112b and does not fall downward. It becomes the composition.

従って、可動収納部７３ｂは、固定収納部７３ａから前下がり方向に張り出して突出した状態で位置調節固定用部材１１３の移動杆１１５に設けた突出状態固定用貫通孔１１５ａ−２に係止用のスナップピン１１７を嵌めると、移動杆１１５はガイド板１１６にて下方への移動が止められるので、苗箱収納部７３は機体の前端から大きく突出した状態となる。この時、苗箱収納部７３の内方空間は、苗箱Ｃを２つ重ねた状態で収納できる幅に設定しており、前後方向の長さは苗箱Ｃを２つ前後方向に収納できる構成としている。従って、片側の苗箱収納部７３に苗箱Ｃを２つ重ねた状態で４つの苗箱Ｃを収納できる。   Therefore, the movable storage portion 73b is locked to the protruding state fixing through hole 115a-2 provided in the moving rod 115 of the position adjustment fixing member 113 in a state of protruding from the fixed storage portion 73a in the forward downward direction. When the snap pin 117 is fitted, the moving rod 115 is prevented from moving downward by the guide plate 116, so that the seedling box storage portion 73 is greatly protruded from the front end of the machine body. At this time, the inner space of the seedling box storage unit 73 is set to a width that can store two seedling boxes C in a stacked state, and the length in the front-rear direction can store two seedling boxes C in the front-rear direction. It is configured. Therefore, four seedling boxes C can be stored in a state where two seedling boxes C are stacked in one seedling box storage portion 73.

また、苗箱収納部７３は、その後端部がハンドル３４の側方且つフロアステップ３５側方に位置し、前端部が機体前端よりも前下がり方向に大きく張り出して突出した位置になっているので、機体のフロアステップ３５上に居る作業者が苗載台５１に苗を供給した後の空になった苗箱Ｃを苗箱収納部７３の後端部に入れると、苗箱Ｃは苗箱収納部７３内を滑って前端まで移動する。すると、畦に居る作業者がそれを取って回収する作業が容易に行なえる苗箱戻し装置としての機能がある。   Moreover, since the rear end portion of the seedling box storage portion 73 is located on the side of the handle 34 and on the side of the floor step 35, and the front end portion protrudes from the front end of the machine body so as to protrude largely downward. When the worker on the floor step 35 of the machine body supplies an empty seedling box C after supplying seedlings to the seedling stage 51, the seedling box C becomes a seedling box. It slides in the storage part 73 and moves to the front end. Then, there exists a function as a seedling box return apparatus which the worker who is in the cage can easily take and collect it.

更に、可動収納部７３ｂは、固定収納部７３ａに対して収納方向には自由に移動できる構成としているので、例えば、苗補給の為に畦に機体前部を着ける時等に、苗箱収納部７３の機体前端よりも大きく突出している可動収納部７３ｂが畦等の障害物に接当しても、可動収納部７３ｂは収納方向に移動するから破損を防止することができる。   Further, since the movable storage portion 73b is configured to be freely movable in the storage direction with respect to the fixed storage portion 73a, for example, when the front part of the fuselage is put on the bag for replenishing seedlings, the seedling box storage portion Even if the movable storage portion 73b that protrudes larger than the front end of the machine body 73 comes into contact with an obstacle such as a bag, the movable storage portion 73b moves in the storage direction, so that damage can be prevented.

次に、前記左右の予備苗載台３８，３８が装着された施肥装置付き乗用型田植機にて行なう田植作業の説明をする。
先ず、圃場内に機体を入れて、機体前端部を畦（または、道路）に着けた状態にする。この時、機体前端部を畦に接近して停止できる圃場では、左右の予備苗載台３８，３８は、図１及び図２に示すように、操作レバー８３を操作して回動停止ピン８５を回動フレーム７８の円板８０に設けた貫通孔８１ａに係合させて、左右の予備苗載部７２，７２が平面視で前部の左右間隔Ｌ１が後部の左右間隔Ｌ２よりも小さいハの字状に配置され、左右の苗箱収納部７３，７３も、平面視で前部の左右間隔Ｌ３が後部の左右間隔Ｌ４よりも小さいハの字状に配置された状態とし、機体前端からの突出量Ｌ７が小さい状態とする。尚、左右の予備苗載部７２，７２は、各々第一回動苗載部８９及び第ニ回動苗載部９０が固定苗載部８８と同一平面上に位置する展開作業状態（図１の実線の状態）にしておく。また、苗箱収納部７３は、可動収納部７３ｂが、固定収納部７３ａから前下がり方向に張り出して突出した状態で位置調節固定用部材１１３の移動杆１１５に設けた突出状態固定用貫通孔１１５ａ−２に係止用のスナップピン１１７を嵌めて、機体の前端から大きく突出した状態にしておく。 Next, a rice transplanting operation performed by the riding type rice transplanter with a fertilizer device to which the left and right spare seedling platforms 38 are mounted will be described.
First, the aircraft is put in the field, and the front end of the aircraft is put on the ridge (or road). At this time, in the field where the front end of the machine body can be stopped close to the ridge, the left and right spare seedling platforms 38 and 38 are operated by operating the operation lever 83 as shown in FIG. 1 and FIG. Is engaged with a through-hole 81a provided in the disk 80 of the rotating frame 78 so that the left and right auxiliary seedling mounting portions 72, 72 are smaller than the rear left-right interval L2 in the plan view. The left and right seedling box storage parts 73 and 73 are also arranged in a square shape in which the left and right distance L3 at the front is smaller than the left and right distance L4 at the rear in plan view. The protrusion amount L7 is set to be small. The left and right preliminary seedling mounting parts 72, 72 are in a deployment work state in which the first rotating seedling mounting part 89 and the second rotating seedling mounting part 90 are located on the same plane as the fixed seedling mounting part 88 (FIG. 1). (Solid line state). In addition, the seedling box storage portion 73 has a protruding state fixing through-hole 115a provided in the movable rod 115 of the position adjustment fixing member 113 in a state where the movable storage portion 73b protrudes from the fixed storage portion 73a in the forward downward direction. -2 is fitted with a snap pin 117 for locking so that it protrudes greatly from the front end of the machine body.

左右の予備苗載台３８，３８を図１及び図２に示す状態にすると、左右の予備苗載部７２，７２は平面視でフロアステップ３５の外側方に位置するので、作業者はハンドル３４の左右両側にあるフロアステップ３５上を機体前端部から後部の施肥装置５の肥料ホッパ６０位置まで自由に移動できるようになる。   When the left and right spare seedling platforms 38, 38 are in the state shown in FIGS. 1 and 2, the left and right preliminary seedling platforms 72, 72 are positioned outside the floor step 35 in plan view, so that the operator can handle the handle 34. Can be freely moved from the front end of the machine body to the position of the fertilizer hopper 60 of the rear fertilizer 5.

この状態で、畦に居る作業者が左右の予備苗載台３８，３８の左右の予備苗載部７２，７２前端の間に位置して、畦から左右の予備苗載部７２，７２前端に苗を育苗した苗箱Ｃを載置し、苗箱Ｃを押すと、苗箱Ｃは左右の予備苗載部７２，７２の回動ローラ９５…上を後端に向かってスムーズに移動する。この時、左右の予備苗載部７２，７２は平面視で前部の左右間隔Ｌ１が後部の左右間隔Ｌ２よりも小さいハの字状に配置されているので、畦に居る作業者は左右の予備苗載台３８，３８の左右の予備苗載部７２，７２前端の間に位置して、左右の予備苗載部７２，７２の前端部に作業性良く楽に苗箱Ｃを載置でき、作業効率が良い。尚、苗補給作業において、左右の副予備苗載部１５０も必要に応じて適宜使用すればよい。   In this state, an operator who is in the cocoon is positioned between the left and right auxiliary seedling mounting parts 72 and 72 front ends of the left and right auxiliary seedling mounting bases 38 and 38, and from the heel to the left and right auxiliary seedling mounting parts 72 and 72 front ends. When the seedling box C on which the seedling has been grown is placed and the seedling box C is pushed, the seedling box C smoothly moves on the rotating rollers 95 of the left and right spare seedling placement parts 72, 72 toward the rear end. At this time, the left and right preliminary seedling mounting parts 72, 72 are arranged in a square shape in which the left-right distance L1 at the front part is smaller than the left-right distance L2 at the rear part in plan view. The seedling box C can be easily and easily placed on the front ends of the left and right spare seedling placement parts 72, 72 between the left and right spare seedling placement parts 72, 72 of the preliminary seedling stage 38, 38. Work efficiency is good. In the seedling replenishing operation, the left and right auxiliary preliminary seedling mounting portions 150 may be used as necessary.

一方、田植機体上に居る作業者は、左右の予備苗載部７２，７２の何れかの後端部位置近くのフロアステップ３５上に立って、前記予備苗載部７２上を前端から後端に移動した苗箱Ｃを取上げて、苗箱Ｃから苗掬い板でマット状苗を掬い取って、後方の苗載台５１に供給する。この時、予備苗載部７２の後端部はフロアステップ３５の外側方近くで且つ施肥装置５の肥料ホッパ６０左右外側部近くにあるので、作業者は予備苗載部７２後部の苗箱Ｃを取上げて、楽な姿勢で作業性良く苗載台５１に苗供給作業をすることができる。即ち、苗載台５１の左右外側の苗載部及び中央部の苗載部の全ての苗載部に対する苗供給作業が容易に行なえて作業効率が良い。   On the other hand, the worker on the rice transplanter stands on the floor step 35 near the rear end position of either of the left and right spare seed placement units 72, 72, and moves the preliminary seedling placement unit 72 from the front end to the rear end. The seedling box C that has been moved to is picked up, and the mat-like seedlings are picked up from the seedling box C with a seedling plate and supplied to the seedling mounting stage 51 at the rear. At this time, since the rear end portion of the preliminary seedling mounting portion 72 is near the outside of the floor step 35 and near the left and right outer portions of the fertilizer hopper 60 of the fertilizer application device 5, the operator can set the seedling box C at the rear of the preliminary seedling mounting portion 72. Thus, the seedling supply work can be performed on the seedling placing stand 51 with an easy posture and good workability. That is, the seedling supply operation to all the seedling mounting portions of the seedling mounting portions on the left and right outer sides of the seedling mounting stand 51 and the center seedling mounting portion can be easily performed, and the working efficiency is good.

そして、作業者がフロアステップ３５後部に立ったままで、苗供給を終えて空になった苗箱Ｃを苗箱収納部７３の後端部に入れると、苗箱Ｃは苗箱収納部７３内を滑って前端まで移動する。すると、畦に居る作業者がそれを取って容易に畦上に回収する作業が行なえるので、空箱回収作業効率が良い。また、苗箱収納部７３の可動収納部７３ｂは、固定収納部７３ａに対して収納方向には自由に移動できる構成としているので、例えば、苗補給の為に畦に機体前部を着ける時等に、苗箱収納部７３の機体前端よりも大きく突出している可動収納部７３ｂが畦等の障害物に接当しても、可動収納部７３ｂは収納方向に移動するから破損を防止することができる。   Then, when the worker stands at the rear part of the floor step 35 and puts the seedling box C that has been emptied after the seedling supply into the rear end part of the seedling box storage part 73, the seedling box C is placed in the seedling box storage part 73. Slide to the front edge. Then, since the worker in the cage can take it and easily collect it on the cage, the empty box collection work efficiency is good. In addition, since the movable storage portion 73b of the seedling box storage portion 73 can be freely moved in the storage direction with respect to the fixed storage portion 73a, for example, when the front part of the fuselage is put on the bag for seedling replenishment, etc. In addition, even if the movable storage portion 73b that protrudes larger than the front end of the machine body of the seedling box storage portion 73 contacts an obstacle such as a bag, the movable storage portion 73b moves in the storage direction, so that damage can be prevented. it can.

そして、苗載台５１の全ての苗載部に対する苗供給作業を終えると、畦に居る作業者は左右の予備苗載部７２前端側から順次苗を育苗した苗箱Ｃを載置して、左右の予備苗載部７２上及び左右の副予備苗載部１５０上に左右各々計４個の苗箱Ｃ…を載置する。   And, after finishing the seedling supply work for all the seedling mounting parts of the seedling mounting table 51, the worker in the cage places the seedling boxes C that have grown seedlings sequentially from the front end side of the left and right spare seedling mounting parts 72, A total of four seedling boxes C... Are placed on the left and right spare seedling placement parts 72 and the left and right auxiliary seedling placement parts 150, respectively.

また、作業者は、フロアステップ３５を通って機体前端から肥料ホッパ６０まで肥料を運び肥料ホッパ６０内に肥料を供給する。この時、左右の予備苗載部７２，７２は、フロアステップ３５の左右外側に位置するので、作業者は広いフロアステップ３５上を肥料を持って移動でき、安全に作業性良く肥料供給作業が行なえる。   Further, the operator carries the fertilizer from the front end of the machine body to the fertilizer hopper 60 through the floor step 35 and supplies the fertilizer into the fertilizer hopper 60. At this time, since the left and right auxiliary seedling mounting parts 72 and 72 are positioned on the left and right outer sides of the floor step 35, the operator can move the fertilizer on the wide floor step 35, and can safely perform the fertilizer supply work with good workability. Yes.

そして、機体上の作業者は、座席３１に着座して機体を操縦して各部を駆動し田植作業及び施肥作業を行なう。田植作業中に苗載台５１の苗が残り少なくなると、作業者は左右の予備苗載部７２，７２上に載置した苗箱Ｃ…から苗を取って苗載台５１に供給して田植作業を継続する。この時、空の苗箱Ｃは、左右の苗箱収納部７３に収納しておく（苗箱収納部７３の内方空間は、苗箱Ｃを２つ重ねた状態で収納できる幅に設定しており、前後方向の長さは苗箱Ｃを２つ前後方向に収納できる構成としているので、片側の苗箱収納部７３に苗箱Ｃを２つ重ねた状態で４つの苗箱Ｃを収納できる。従って、左右の予備苗載部７２，７２上に載置した６つの苗箱Ｃは、全て左右の苗箱収納部７３に収納できる）。   An operator on the machine body sits on the seat 31 and steers the machine body to drive each part to perform rice transplanting work and fertilizing work. When the remaining seedlings on the seedling stage 51 become smaller during the rice transplanting work, the operator takes the seedlings from the seedling boxes C placed on the left and right spare seedling mounting parts 72, 72 and supplies them to the seedling mounting stage 51 for the rice transplanting work. Continue. At this time, empty seedling boxes C are stored in the left and right seedling box storage parts 73 (the inner space of the seedling box storage part 73 is set to a width that allows two seedling boxes C to be stored. Since the length in the front-rear direction is configured so that two seedling boxes C can be stored in the front-rear direction, four seedling boxes C are stored in a state where two seedling boxes C are stacked on one side seedling box storage part 73. Therefore, all of the six seedling boxes C placed on the left and right preliminary seedling placement parts 72, 72 can be stored in the left and right seedling box storage parts 73).

そして、左右の予備苗載部７２，７２上に載置した苗箱Ｃ…の苗を全て使って苗載台５１に載置した苗が残り少なくなると、前記と同様に機体前端部を畦（または、道路）に着けた状態にして、前記と同様にして苗供給作業を行なう。   When the remaining seedlings placed on the seedling placing stand 51 using all the seedlings in the seedling boxes C... Placed on the left and right spare seedling placing parts 72, 72 are reduced, The seedling supply operation is performed in the same manner as described above.

また、圃場と畦（または、道路）との間に水路等があって、機体前端部を畦（または、道路）に着けた状態にできない場合（圃場と畦との距離が遠い場合）は、図１１に示すように、操作レバー８３を操作して左右の予備苗載部７２，７２を１８０度回転させ回動停止ピン８５を回動フレーム７８の円板８０に設けた貫通孔８１ｂに係合させ、左右の予備苗載部７２，７２が平面視で前部の左右間隔Ｌ１が後部の左右間隔Ｌ２よりも小さいハの字状に配置され、且つ、機体前端からの突出量Ｌ７が大きい状態とする。尚、この時、左右の苗箱収納部７３，７３は、左右の予備苗載部７２，７２から取り外して、左右の予備苗載部７２，７２の内側に前下がり傾斜状態になるように各々装着し直す。   Also, if there is a water channel between the farm and the fence (or road) and the front edge of the aircraft cannot be put on the fence (or road) (when the distance between the farm and the fence is far) As shown in FIG. 11, the operation lever 83 is operated to rotate the left and right auxiliary seedling mounting portions 72, 72 by 180 degrees, and the rotation stop pin 85 is engaged with the through hole 81 b provided in the disk 80 of the rotation frame 78. The left and right preliminary seedling mounting parts 72, 72 are arranged in a square shape in which the left-right distance L1 at the front is smaller than the left-right distance L2 at the rear in plan view, and the protruding amount L7 from the front end of the machine body is large. State. At this time, the left and right seedling box storage parts 73 and 73 are detached from the left and right spare seedling mounting parts 72 and 72, respectively, so that they are inclined forwardly and downwardly inside the left and right preliminary seedling mounting parts 72 and 72, respectively. Re-install.

この状態にすると、左右の予備苗載部７２，７２の機体前端からの突出量Ｌ７が大きいので、圃場と畦（または、道路）との間に水路等があって機体前端部を畦（または、道路）に着けた状態にできない場合（圃場と畦との距離が遠い場合）でも、図１１に示すように、左右の予備苗載部７２，７２及び苗箱収納部７３の前端部を畦（または、道路）上に位置させることができるので、前述と同様にして、楽な姿勢で効率よく畦から機体（苗載台５１及び左右の予備苗載部７２，７２）に苗を供給することができる。   In this state, since the protruding amount L7 from the front end of the left and right auxiliary seedling mounting parts 72, 72 is large, there is a water channel between the farm field and the reed (or road), and the front end of the reed is placed on the reed (or , Even when the state cannot be put on the road) (when the distance between the field and the cocoon is long), as shown in FIG. 11, the left and right auxiliary seedling mounting parts 72 and 72 and the front end part of the seedling box storage part 73 are Since it can be located on the road (or road), the seedlings are efficiently supplied from the cocoon to the machine body (the seedling stage 51 and the left and right spare seedling parts 72, 72) in an easy posture in the same manner as described above. be able to.

そして、田植作業を終えて、路上走行する場合やトラックに機体を載せる場合や納屋等に機体を入れる場合には、図１２に示すように、操作レバー８３を操作して回動停止ピン８５を回動フレーム７８の円板８０に設けた貫通孔８１ｃに係合させ、左右の予備苗載部７２，７２が平面視で左右平行状態に配置され、且つ、機体前端からの突出量Ｌ７が小さい状態とする。すると、平面視で左右の予備苗載部７２，７２の各々の内側部がフロアステップ３５と重なった状態となって、左右の予備苗載部７２，７２（左右の予備苗載台３８，３８）の幅Ｌ８が苗載台５１の幅Ｌ９よりも小さくなる。尚、図面中、１２０は前記各条の苗取出口５１ａ…を設けた苗受け板であり、その苗載台５１の幅Ｌ９から左右外側に突出した左右の外側部１２０ａ・１２０ａは苗載台５１の下方内側に折畳み自在に構成している。また、１２１・１２１は苗受け板１２０の外側部に配置され苗受け板１２０の端部が畦や障害物に接当して破損することを防止する左右のガード体であり、その苗載台５１の幅Ｌ９から左右外側に突出した状態から苗載台５１の下方内側に折畳み自在に構成している。従って、田植作業をしない路上走行する場合やトラックに機体を載せる場合や納屋等に機体を入れる場合には、苗受け板１２０の左右の外側部１２０ａ・１２０ａ及び左右のガード体１２１・１２１は苗載台５１の下方内側に折畳んで機体左右幅はＬ９になっている。   When the rice transplanting operation is completed and the vehicle is traveling on the road, the aircraft is placed on a truck, or the aircraft is placed in a barn or the like, the operation lever 83 is operated to turn the rotation stop pin 85 as shown in FIG. Engage with a through hole 81c provided in the disk 80 of the rotating frame 78, the left and right auxiliary seedling mounting portions 72, 72 are arranged in a parallel state in a plan view, and the protrusion amount L7 from the front end of the machine body is small. State. Then, the inner side of each of the left and right spare seedling placement parts 72, 72 overlaps the floor step 35 in plan view, and the left and right preliminary seedling placement parts 72, 72 (left and right preliminary seedling placement stages 38, 38 ) Is smaller than the width L9 of the seedling stage 51. In the drawings, reference numeral 120 denotes a seedling receiving plate provided with seedling outlets 51a for each of the above-mentioned lines, and left and right outer portions 120a and 120a projecting from the width L9 of the seedling mounting base 51 to the left and right outer sides 51 is configured to be foldable on the lower inner side. Reference numerals 121 and 121 denote left and right guard bodies which are arranged on the outer side of the seedling receiving plate 120 and prevent the end of the seedling receiving plate 120 from coming into contact with a ridge or an obstacle and being damaged. From the state which protruded from the width L9 of 51 to the left-right outer side, it is comprised so that folding in the downward inner side of the seedling mounting stand 51 is possible. Accordingly, when traveling on the road without rice transplanting work, when placing the aircraft on a truck, or when placing the aircraft in a barn or the like, the left and right outer portions 120a and 120a of the seedling receiving plate 120 and the left and right guard bodies 121 and 121 are the seedlings. The left and right width of the machine body is L9 when folded on the lower inner side of the platform 51.

そして、左右の副予備苗載部１５０，１５０を上側及び機体の左右方向内側に回動させて退避状態に位置させると共に、左右の予備苗載部７２，７２の第一回動苗載部８９及び第ニ回動苗載部９０は、固定苗載部８８の上方に回動して折り畳んだ収納状態とし、左右の予備苗載部７２，７２の前端部が機体側面視で機体前端部と略同じ位置になるようにする。尚、先ず第一回動苗載部８９を折りたたみ、その上方に位置するように第ニ回動苗載部９０を折りたたむ。また、左右の苗箱収納部７３，７３は、可動収納部７３ｂを固定収納部７３ａ内に収納した状態として位置調節固定用部材１１３の移動杆１１５に設けた収納状態係止用貫通孔１１５ａ−１に係止用のスナップピン１１７を嵌めて、収納状態で固定し、左右の苗箱収納部７３，７３の前端が機体側面視で機体前端部と略同じ位置になるようにする。   Then, the left and right auxiliary seedling placement parts 150 and 150 are rotated to the upper side and the inner side in the left and right direction of the machine body so as to be in the retracted state, and the first turning seedling placement parts 89 of the left and right preliminary seedling placement parts 72 and 72 are placed. The second rotating seedling mounting portion 90 is in a storage state that is rotated and folded above the fixed seedling mounting portion 88, and the front end portions of the left and right spare seedling mounting portions 72, 72 are in front of the body front end portion in the body side view. Make sure they are in approximately the same position. First, the first rotating seedling mounting portion 89 is folded, and the second rotating seedling mounting portion 90 is folded so as to be positioned above it. In addition, the left and right seedling box storage parts 73 and 73 are provided with a storage state locking through-hole 115a- provided in the moving rod 115 of the position adjustment fixing member 113 in a state where the movable storage part 73b is stored in the fixed storage part 73a. 1 is fitted with a snap pin 117 for locking, and is fixed in the stored state so that the front ends of the left and right seedling box storage portions 73 and 73 are located at substantially the same position as the front end portion of the body in a side view of the body.

上記のように左右の予備苗載台３８，３８（左右の副予備苗載部１５０，１５０、左右の予備苗載部７２，７２及び苗箱収納部７３，７３）を収納状態にすると、各部を収納状態にした機体幅Ｌ９内に左右の予備苗載台３８，３８（左右の副予備苗載部１５０，１５０、左右の予備苗載部７２，７２及び苗箱収納部７３，７３）は収まり、且つ、機体前端から大きく突出しないので、路上走行する場合やトラックに機体を載せる場合や納屋等に機体を入れる場合に左右の予備苗載台３８，３８（左右の副予備苗載部１５０，１５０、左右の予備苗載部７２，７２及び苗箱収納部７３，７３）が邪魔にならず、路上走行及びトラックへの積み込み作業及び納屋内への機体収納が容易に行なえる。また、左右の予備苗載台３８，３８（左右の副予備苗載部１５０，１５０、左右の予備苗載部７２，７２及び苗箱収納部７３，７３）を収納状態にすると、機体がコンパクトになると共に、座席３１に着座した操縦者の視界の邪魔にならないので、操縦が容易となり安全である。この予備苗載台３８，３８の収納状態で、側面視において、固定苗載部８８、第一回動苗載部８９、第ニ回動苗載部９０、副予備苗載部、可動収納部７３ｂ、固定収納部７３ａが略同じ位置（前後位置）に集中して配置され、予備苗載台３８、３８を極めてコンパクトにできる。   When the left and right spare seedling platforms 38 and 38 (the left and right auxiliary preliminary seedling platforms 150 and 150, the left and right preliminary seedling platforms 72 and 72, and the seedling box storage units 73 and 73) are stored as described above, The left and right spare seedling platforms 38 and 38 (left and right auxiliary seedling mounting units 150 and 150, left and right preliminary seedling mounting units 72 and 72, and seedling box storage units 73 and 73) are placed in the body width L9 in the storage state. Since it fits and does not protrude significantly from the front end of the aircraft, the left and right auxiliary seedling platforms 38, 38 (left and right auxiliary auxiliary seedling mounting portions 150) are used when traveling on the road, when placing the aircraft on a truck, or when placing the aircraft in a barn or the like. 150, the left and right spare seedling mounting parts 72, 72 and the seedling box storage parts 73, 73) do not get in the way, and can be easily carried on the road, loaded onto the truck, and stored in the storage room. In addition, when the left and right spare seedling platforms 38, 38 (left and right auxiliary seedling mounting parts 150, 150, left and right preliminary seedling mounting parts 72, 72 and seedling box storage parts 73, 73) are stored, the airframe is compact. At the same time, since it does not interfere with the field of view of the operator sitting on the seat 31, the operation is easy and safe. In the storage state of the preliminary seedling platforms 38, 38, in a side view, the fixed seedling mounting unit 88, the first rotating seedling mounting unit 89, the second rotating seedling mounting unit 90, the auxiliary preliminary seedling mounting unit, the movable storage unit 73b and the fixed storage part 73a are concentrated and arranged at substantially the same position (front-rear position), and the preliminary seedling stage 38, 38 can be made extremely compact.

更に、左右の予備苗載台３８，３８（左右の予備苗載部７２，７２及び苗箱収納部７３，７３）を収納状態にした時に、機体前後方向で機体前端とハンドル３４後端との間Ｌ１０に収まるように構成すると、更に、機体がコンパクトになると共に、座席３１に着座した操縦者の視界の邪魔にならないので、更に、操縦が容易となり安全である。   Further, when the left and right spare seedling platforms 38, 38 (left and right spare seedling placement units 72, 72 and seedling box storage units 73, 73) are stored, the front end of the aircraft and the rear end of the handle 34 in the longitudinal direction of the aircraft. If it is configured so as to be within the space L10, the airframe is further compacted and does not interfere with the view of the operator seated on the seat 31, so that the maneuvering becomes easier and safer.

そして、走行車体２の後部に苗植付部４を設け、苗箱Ｃ又は苗を載せた苗掬い板を載置する予備苗載台３８を走行車体２の側部に設け、予備苗載台３８を、複数の苗箱Ｃ又は複数の苗掬い板を連続して移動可能に載置できる予備苗載部７２と、該予備苗載部７２よりも載置スペースが小さい副予備苗載部１５０で構成した苗植機において、副予備苗載部１５０を、予備苗載部７２の上方に配置される載置状態と予備苗載部７２の苗箱Ｃ又は苗掬い板の移動方向である前後方向と交差する方向である左右方向に移動させて予備苗載部７２の上方から退避する退避状態に切替可能に構成している。よって、副予備苗載部１５０に苗を搭載することにより、予備の苗の搭載量を増すことができ、植付作業を円滑に行える。また、予備苗載部７２上で苗を移動させながら畦から該予備苗載部７２への苗補給や予備苗載部７２から苗植付部４への苗補給を行うとき、副予備苗載部７２を退避状態に切り替えることにより、副予備苗載部７２が邪魔にならないようにでき、苗補給作業を容易に行うことができ、作業能率の向上が図れる。   And the seedling planting part 4 is provided in the rear part of the traveling vehicle body 2, and a preliminary seedling stage 38 on which a seedling box C or a seedling scooping plate on which the seedling is placed is placed on the side of the traveling vehicle body 2. 38, a spare seedling placement section 72 capable of continuously movably placing a plurality of seedling boxes C or a plurality of seedling sowing boards, and an auxiliary preliminary seedling placement section 150 having a smaller placement space than the preliminary seedling placement section 72. In the seedling planting machine configured as above, the auxiliary preliminary seedling mounting section 150 is placed in a state where it is placed above the preliminary seedling mounting section 72 and the front and rear are the moving direction of the seedling box C or the seedling seedling plate of the preliminary seedling mounting section 72 It is configured to be switchable to a retracted state in which it is moved in the left-right direction, which is a direction intersecting the direction, and retracted from above the preliminary seedling placement portion 72. Therefore, by mounting seedlings on the auxiliary preliminary seedling mounting unit 150, the amount of spare seedlings mounted can be increased, and the planting operation can be performed smoothly. Further, when the seedling is replenished from the cocoon to the spare seedling placing section 72 and the seedling is replenished from the spare seedling placing section 72 to the seedling planting section 4 while moving the seedling on the spare seedling placing section 72, the auxiliary spare seedling placing is performed. By switching the portion 72 to the retracted state, the auxiliary preliminary seedling placement portion 72 can be prevented from getting in the way, the seedling replenishment work can be easily performed, and the work efficiency can be improved.

また、予備苗載部７２を固定苗載部８８と上側へ回動させて前記固定苗載部８８の上方に位置する収納状態へ移動させる回動苗載部８９，９０で構成し、副予備苗載部１５０は、載置状態では固定苗載部８８の上方位置への回動苗載部８９、９０の回動領域に配置され、退避状態では前記回動領域外に配置される。よって、副予備苗載部１５０は、載置状態では固定苗載部８８の上方位置への回動苗載部８９，９０の回動領域に配置される程度の予備苗載部７２に近い位置にあり、予備苗載部７２との高低差が小さく配置できるので、予備苗載部７２と副予備苗載部１５０を苗補給作業が行い易い高さに設定でき、予備苗載部７２及び副予備苗載部１５０を介しての苗補給作業を容易に行える。しかも、予備苗載部７２の一部である固定苗載部８８が圃場の畦あるいは他の構造物に干渉するおそれがあるときや、予備苗載部７２が長過ぎるために畦からの苗補給が行いにくいときは、副予備苗載部１５０を退避状態にした状態で回動苗載部８９，９０を収納状態へ移動させて予備苗載部７２の長さを縮小することができ、予備苗載部７２の干渉の防止や苗補給の容易化が図れる。   Further, the auxiliary seedling mounting part 72 is composed of a fixed seedling mounting part 88 and a rotating seedling mounting part 89, 90 which is rotated upward and moved to a storage state located above the fixed seedling mounting part 88, and is used as a secondary standby part. The seedling mounting part 150 is arranged in the rotation area of the rotating seedling mounting parts 89 and 90 to the upper position of the fixed seedling mounting part 88 in the mounting state, and is arranged outside the rotation area in the retracted state. Therefore, the auxiliary preliminary seedling mounting part 150 is close to the preliminary seedling mounting part 72 to the extent that it is arranged in the rotation area of the rotating seedling mounting parts 89 and 90 to the upper position of the fixed seedling mounting part 88 in the mounting state. Therefore, the height difference between the preliminary seedling mounting portion 72 and the auxiliary seedling mounting portion 72 can be set small, so that the preliminary seedling mounting portion 72 and the auxiliary preliminary seedling mounting portion 150 can be set to a height at which the seedling replenishing operation can be easily performed. The seedling replenishment work can be easily performed through the preliminary seedling placement unit 150. In addition, when there is a possibility that the fixed seedling mounting portion 88 which is a part of the preliminary seedling mounting portion 72 may interfere with the straw or other structures in the field, or because the preliminary seedling mounting portion 72 is too long, replenishing seedlings from the straw When the auxiliary seedling placing part 150 is in the retracted state, the rotating seedling placing parts 89 and 90 can be moved to the retracted state to reduce the length of the spare seedling placing part 72. It is possible to prevent interference of the seedling mounting portion 72 and facilitate seedling replenishment.

また、副予備苗載部１５０は、載置状態では収納状態の回動苗載部である第二回動苗載部９０の位置と重複する位置に配置される。よって、収納状態の第二回動苗載部９０を固定苗載部８８に近い位置に配置して予備苗載部７２をコンパクトに収納できる構成としながら、副予備苗載部１５０は、載置状態では収納状態の第二回動苗載部９０の位置と重複する位置に配置される程度の予備苗載部７２に近い位置にあり、予備苗載部７２との高低差が小さく配置できるので、予備苗載部７２と副予備苗載部１５０を苗補給作業が行い易い高さに設定でき、予備苗載部７２及び副予備苗載部１５０を介しての苗補給作業を容易に行える。   Further, the auxiliary preliminary seedling mounting part 150 is arranged at a position overlapping with the position of the second rotating seedling mounting part 90 which is the rotating seedling mounting part in the storage state in the mounting state. Therefore, the auxiliary auxiliary seedling mounting part 150 is placed while the second rotating seedling mounting part 90 in the storage state is arranged at a position close to the fixed seedling mounting part 88 and the preliminary seedling mounting part 72 can be stored compactly. In the state, it is in a position close to the preliminary seedling mounting part 72 to the extent that it is arranged at a position overlapping the position of the second rotating seedling mounting part 90 in the stored state, and the height difference from the preliminary seedling mounting part 72 can be arranged small. The preliminary seedling placement unit 72 and the auxiliary preliminary seedling placement unit 150 can be set to a height at which the seedling replenishment operation can be easily performed, and the seedling replenishment operation through the preliminary seedling placement unit 72 and the auxiliary preliminary seedling placement unit 150 can be easily performed.

また、収納状態の回動苗載部である第一回動苗載部８９の上方で、副予備苗載部１５０を下側へ回動させて載置状態に切替できる構成となっている。よって、収納状態の第一回動苗載部８９を固定苗載部８８に近い位置に配置して予備苗載部７２をコンパクトに収納できる構成としながら、第一回動苗載部８９を収納状態としても、その上方で載置状態の副予備苗載部１５０に苗を搭載して苗補給作業を行うことができ、苗補給作業性を向上させることができる。   Moreover, it has the structure which can rotate the auxiliary | assistant preliminary | backup seedling mounting part 150 below to the mounting state above the 1st rotation seedling mounting part 89 which is the rotation seedling mounting part of an accommodation state. Accordingly, the first rotating seedling mounting portion 89 is accommodated while the first rotating seedling mounting portion 89 in the storage state is disposed at a position close to the fixed seedling mounting portion 88 so that the preliminary seedling mounting portion 72 can be stored compactly. Even in the state, it is possible to perform the seedling replenishment work by mounting the seedling on the auxiliary auxiliary seedling placement unit 150 placed above the seedling, and it is possible to improve the seedling replenishment workability.

また、予備苗載部７２の苗箱Ｃ又は苗掬い板の移動方向における両端部（前後端部）に回動苗載部８９，９０を各々設け、収納状態で一方の回動苗載部である第一回動苗載部８９の上方に他方の回動苗載部である第二回動苗載部９０が配置される。よって、予備苗載部７２の両端部に設けた各々の回動苗載部８９，９０を、合理的にコンパクトに収納でき、機体の格納時や運搬時等に機体のコンパクト化が図れる。   Moreover, the rotation seedling mounting parts 89 and 90 are provided at both ends (front and rear end parts) in the moving direction of the seedling box C or the seedling seedling plate of the preliminary seedling mounting part 72, respectively. A second rotating seedling mounting portion 90 which is the other rotating seedling mounting portion is disposed above a certain first rotating seedling mounting portion 89. Therefore, the respective rotating seedling mounting portions 89 and 90 provided at both ends of the preliminary seedling mounting portion 72 can be stored reasonably compactly, and the airframe can be made compact when the airframe is stored or transported.

尚、副予備苗載部１５０を予備苗載部７２の前後中央部となる固定苗載部８８の下方に配置することにより、副予備苗載部１５０を前述のように退避状態に切り替える必要がなく、予備苗載部７２の回動苗載部８９，９０を回動させるだけでよいので、予備苗載部７２の収納を容易に行え、合理的にコンパクトに収納できる。   In addition, it is necessary to switch the auxiliary preliminary seedling mounting part 150 to the retracted state as described above by arranging the auxiliary preliminary seedling mounting part 150 below the fixed seedling mounting part 88 which is the front and rear center part of the preliminary seedling mounting part 72. In addition, since it is only necessary to rotate the rotating seedling mounting parts 89 and 90 of the preliminary seedling mounting part 72, the preliminary seedling mounting part 72 can be easily stored and can be stored reasonably compactly.

また、予備苗載部７２を苗箱Ｃ又は苗掬い板の移動方向に傾斜する傾斜姿勢に配置し、副予備苗載部１５０を予備苗載部７２の前記傾斜姿勢よりも水平に近い姿勢に配置した。よって、予備の苗の搭載量を増すことができ、植付作業を円滑に行える。また、予備苗載部７２上で該予備苗載部７２の傾斜上位側から傾斜下位側へ向けて苗を移動させながら畦から該予備苗載部７２への苗補給や予備苗載部７２から苗植付部４への苗補給が行え、苗補給作業が容易になると共に、副予備苗載部１５０は、予備苗載部７２の前記傾斜姿勢よりも水平に近い姿勢であるので、搭載する苗を安定して支持できる。しかも、予備苗載部７２の傾斜下位側において、予備苗載部７２と副予備苗載部１５０の間隔が広くなるので、予備苗載部７２の傾斜下位側からの苗の取出が容易になり、予備苗載部７２から苗植付部４への苗補給が容易になり、作業能率の向上が図れる。   Further, the preliminary seedling placement unit 72 is arranged in an inclined posture that is inclined in the moving direction of the seedling box C or the seedling sowing plate, and the auxiliary preliminary seedling placement unit 150 is set to a posture closer to the horizontal than the inclined posture of the preliminary seedling placement unit 72. Arranged. Therefore, the amount of spare seedlings can be increased, and planting work can be performed smoothly. In addition, while the seedling is moved on the preliminary seedling mounting portion 72 from the upper inclined side to the lower inclined side of the preliminary seedling mounting portion 72, the seedling supply from the heel to the preliminary seedling mounting portion 72 and the preliminary seedling mounting portion 72 The seedlings can be replenished to the seedling planting unit 4 and the seedling replenishing work can be facilitated, and the auxiliary preliminary seedling mounting unit 150 is mounted in a posture that is closer to the horizontal than the inclined posture of the preliminary seedling mounting unit 72. Can support seedlings stably. In addition, since the interval between the preliminary seedling placement part 72 and the auxiliary preliminary seedling placement part 150 is widened on the inclined lower side of the preliminary seedling placement part 72, it is easy to take out the seedling from the inclined lower side of the preliminary seedling placement part 72. The seedling supply from the preliminary seedling placement section 72 to the seedling planting section 4 is facilitated, and the work efficiency can be improved.

また、副予備苗載部１５０を、固定苗載部８８の略真上に配置することにより、予備苗載部７２の上方位置で、且つ予備苗載部７２の苗箱Ｃ又は苗掬い板の移動方向における両端部の１枚分の苗箱Ｃ又は苗掬い板の載置スペースの上方に重複しない位置に配置した。よって、副予備苗載部１５０が、予備苗載部７２の苗箱Ｃ又は苗掬い板の移動方向における両端部の１枚分の苗箱Ｃ又は苗掬い板の載置スペースの上方に重複しないので、予備苗載部７２上で畦から該予備苗載部７２への苗補給や予備苗載部７２から苗植付部４への苗補給を行うとき、副予備苗載部７２が邪魔にならずに予備苗載部７２の両端部に対してその上方を介して容易に行え、作業能率の向上が図れる。   In addition, by arranging the auxiliary preliminary seedling mounting portion 150 substantially directly above the fixed seedling mounting portion 88, the auxiliary seedling mounting portion 150 is positioned above the preliminary seedling mounting portion 72 and on the seedling box C or the seedling seedling plate of the preliminary seedling mounting portion 72. It arrange | positioned in the position which does not overlap above the placement space of the seedling box C or the seedling seedling board for one sheet of both ends in the moving direction. Therefore, the auxiliary preliminary seedling mounting part 150 does not overlap above the placement space for the seedling box C or the seedling board for one sheet at both ends in the moving direction of the seedling box C or the seedling seedling board of the preliminary seedling mounting part 72. Therefore, when the seedling is replenished from the cocoon to the spare seedling placing section 72 and the seedling replenishment section 4 is supplied from the spare seedling placing section 72 to the seedling planting section 4 on the spare seedling placing section 72, the auxiliary spare seedling placing section 72 is in the way. In addition, it can be easily performed on both ends of the preliminary seedling mounting portion 72 via the upper portion thereof, and the work efficiency can be improved.

また、予備苗載台３８を上下方向の軸である回動ピン７９回りに回動可能に設けた。よって、予備苗載台３８を前記回動ピン７９回りに回動させることにより、予備苗載部７２の端部を畦側に向けたり、予備苗載部７２が必要以上に長いときには該予備苗載部７２を畦に対して斜めに向けたりすることができ、畦から予備苗載部７２への苗補給を容易に行える。しかも、副予備苗載台１５０の載置状態と退避状態の切替、回動苗載部８９、９０の収納状態への切替に拘らず、苗補給作業状況に応じて予備苗載台３８全体を回動させることができ、苗補給作業性が向上する。特に、回動苗載部８９，９０ひいては予備苗載台３８を収納状態にした状態で予備苗載台３８全体の向きを３６０度の範囲で所望の位置に回動させる構成とすることができ、予備苗載台３８の取扱い性が向上する。   Further, the preliminary seedling stage 38 is provided so as to be rotatable around a rotation pin 79 which is an axis in the vertical direction. Therefore, by rotating the spare seedling stage 38 around the pivot pin 79, the end of the preliminary seedling part 72 is directed to the heel side, or when the preliminary seedling part 72 is longer than necessary, The mounting part 72 can be directed obliquely with respect to the cocoon, and the seedling supply from the cocoon to the preliminary seedling mounting part 72 can be easily performed. In addition, regardless of the switching between the placement state and the retracted state of the auxiliary spare seedling stage 150 and the switching of the rotating seedling placement parts 89 and 90 to the storage state, the entire preliminary seedling stage 38 is changed according to the seedling replenishment work situation. It can be rotated, and seedling replenishment workability is improved. In particular, the rotating seedling mounting units 89 and 90 and the spare seedling mounting table 38 can be configured to be rotated to a desired position within a range of 360 degrees while the preliminary seedling mounting table 38 is in the retracted state. The handling property of the preliminary seedling stage 38 is improved.

尚、前述の予備苗載台３８は苗箱収納部７３を備える構成について説明したが、苗箱収納部７３を設けず、空の苗箱を予備苗載部７２及び副予備苗載部１５０を利用する等して別途回収する構成としてもよい。   In addition, although the above-mentioned reserve seedling mounting base 38 demonstrated the structure provided with the seedling box storage part 73, the seedling box storage part 73 is not provided, but the empty seedling box is replaced with the spare seedling mounting part 72 and the auxiliary preliminary seedling mounting part 150. It is good also as a structure collect | recovered separately by utilizing.

また、前述の予備苗載台３８を機体（走行車体２）の左右一方側（例えば左側）のみに設け、機体（走行車体２）の左右他方側には上下複数段（例えば計４段）の予備苗載部を備える予備苗枠を配置する構成としてもよい。このときは、畦から苗植付部４への苗補給を予備苗載台３８の予備苗載部７２を主に利用して行うようにし、予備苗枠を主として予備の苗の貯留用としてすれば、苗補給作業を容易化が図れる。   In addition, the above-described preliminary seedling stage 38 is provided only on one of the left and right sides (for example, the left side) of the aircraft (traveling vehicle body 2), and a plurality of upper and lower stages (for example, a total of four levels) are provided on the other left and right sides of the aircraft (traveling vehicle body 2). It is good also as a structure which arrange | positions a reserve seedling frame provided with a preliminary seedling mounting part. At this time, replenishment of seedlings from the cocoons to the seedling planting unit 4 is performed mainly using the spare seedling mounting part 72 of the preliminary seedling mounting base 38, and the spare seedling frame is mainly used for storage of spare seedlings. Thus, the seedling replenishment work can be facilitated.

尚、予備苗載台３８及び予備苗枠の何れを用いる場合でも、左右の予備苗載台３８又は予備苗枠の苗の搭載可能枚数の合計を、苗植付部４の植付条数と同一又は植付条数以上に設定することが望ましい。従って、左右一方の予備載台３８又は予備苗枠の苗の搭載可能枚数は、苗植付部４の植付条数の２分の１又は植付条数の２分の１以上に設定することが望ましい。   Note that, regardless of which of the spare seedling stage 38 and the spare seedling frame is used, the total number of mountable seedlings on the left and right spare seedling stage 38 or the spare seedling frame is determined as the number of planting strips of the seedling planting unit 4. It is desirable to set the same or more than the number of planting strips. Therefore, the mountable number of seedlings on the left and right spare mounting tables 38 or the spare seedling frame is set to one half of the number of planting strips of the seedling planting unit 4 or one half or more of the number of planting strips. It is desirable.

そして、図１３に示すように、前述の予備苗載部７２は、第一回動苗載部８９、固定苗載部８８及び第二回動苗載部９０の苗載面が同一平面上に配置される構成について説明したが、回動枢支ピン９９ａで連結される第一回動側アーム９９と固定側アーム９７の間、及び回動枢支ピン９７ｂで連結される第二回動側アーム１０１と固定側アーム９７の間にスペーサ１６０を挟んで、第一回動苗載部８９及び第二回動苗載部９０の回動位置を規制し、第一回動苗載部８９を前上がり傾斜姿勢に設定し、第二回動苗載部９０を後上がり傾斜姿勢に設定し、この第一回動苗載部８９及び第二回動苗載部９０が共に固定苗載部８８とは反対側が上位となる背反傾斜姿勢にすることができる。   And as shown in FIG. 13, the above-mentioned preliminary seedling placing part 72 has the first turning seedling placing part 89, the fixed seedling placing part 88, and the second turning seedling placing part 90 on the same plane. The arrangement is described, but the second rotation side connected between the first rotation side arm 99 and the fixed side arm 97 connected by the rotation support pin 99a and the rotation support pin 97b. The spacer 160 is sandwiched between the arm 101 and the fixed arm 97 to restrict the rotation positions of the first rotating seedling mounting portion 89 and the second rotating seedling mounting portion 90, and the first rotating seedling mounting portion 89 is The second turning seedling mounting portion 90 is set to the rear rising inclination posture, and the first turning seedling mounting portion 89 and the second turning seedling mounting portion 90 are both fixed seedling mounting portions 88. It is possible to adopt an anti-tilt posture in which the opposite side is higher.

すなわち、走行車体２の後部に苗植付部４を設け、苗を載せた苗箱Ｃ又は苗を載せた苗掬い板を載置する予備苗載台３８を走行車体２の側部に設け、予備苗載台３８を、複数の苗箱Ｃ又は複数の苗掬い板を前後方向に連続して移動可能に載置できる予備苗載部７２と、該予備苗載部７２よりも載置スペースが小さい副予備苗載部１５０で構成した苗植機において、予備苗載部７２の上方に副予備苗載部１５０を配置し、予備苗載部７２の前部を前上がり傾斜姿勢に構成し、予備苗載部７２の後部を後上がり傾斜姿勢に構成している。   That is, the seedling planting part 4 is provided at the rear part of the traveling vehicle body 2, and the seedling box C on which the seedlings are placed or the preliminary seedling placing table 38 on which the seedling seedling plate on which the seedlings are placed are placed on the side of the traveling vehicle body 2, A spare seedling placement unit 72 that can place a plurality of seedling boxes C or a plurality of seedling scooping boards movably continuously in the front-rear direction, and a placement space larger than the preliminary seedling placement unit 72. In the seedling planting machine constituted by the small auxiliary seedling placement part 150, the auxiliary preliminary seedling placement part 150 is arranged above the preliminary seedling placement part 72, and the front part of the preliminary seedling placement part 72 is configured to be in a forward rising and inclined posture, The rear part of the preliminary seedling mounting part 72 is configured to be in a rearwardly inclined posture.

これにより、副予備苗載部１５０に苗を搭載することにより、予備の苗の搭載量を増すことができ、植付作業を円滑に行える。また、予備苗載部７２の上方に副予備苗載部１５０を配置し、予備苗載部７２の前部を前上がり傾斜姿勢に構成し、予備苗載部７２の後部を後上がり傾斜姿勢に構成したので、予備苗載部７２の前端と副予備苗載部１５０の前端の高低差及び予備苗載部７２の後端と副予備苗載部１５０の後端の高低差を小さくすることができ、機体前方の畦からの予備苗載部７２と副予備苗載部１５０への苗供給や、予備苗載部７２と副予備苗載部１５０から機体後部の苗植付部４へ向けての苗取出を容易に行うことができるので、苗補給作業の作業能率の向上が図れる。   Thereby, by mounting seedlings on the auxiliary preliminary seedling mounting unit 150, the amount of spare seedlings mounted can be increased, and the planting operation can be performed smoothly. Further, the auxiliary preliminary seedling mounting part 150 is arranged above the preliminary seedling mounting part 72, the front part of the preliminary seedling mounting part 72 is configured in a forwardly rising inclination attitude, and the rear part of the preliminary seedling mounting part 72 is set in a rearward upward inclination attitude. Since it comprised, the height difference of the front end of the preliminary seedling mounting part 72 and the front end of the auxiliary preliminary seedling mounting part 150 and the height difference of the rear end of the preliminary seedling mounting part 72 and the rear end of the auxiliary preliminary seedling mounting part 150 can be made small. The seedling supply to the preliminary seedling mounting part 72 and the auxiliary preliminary seedling mounting part 150 from the heel in front of the machine body, and from the preliminary seedling mounting part 72 and the auxiliary preliminary seedling mounting part 150 toward the seedling planting part 4 at the rear of the machine body Therefore, the work efficiency of the seedling replenishing work can be improved.

尚、図１４に示すように、予備苗載部７２において、苗箱１枚分の長手方向の長さと略同じ長さの苗載部を、前部苗載部１６１と後部苗載部１６２の２枚で構成し、苗箱２枚分の苗を載置できる構成としたときは、前部苗載部１６１を前上がり傾斜姿勢に設定し、後部苗載部１６２を後上がり傾斜姿勢に設定し、この前部苗載部１６１及び後部苗載部１６２が互いが接続される側とは反対側が上位となる背反傾斜姿勢にすればよい。このとき、前部苗載部１６１及び後部苗載部１６２の一方又は両方を上下に回動できる構成とし、予備苗載部７２を収納状態に切替できる構成としてもよい。   As shown in FIG. 14, in the preliminary seedling placement section 72, the seedling placement section having a length substantially the same as the length in the longitudinal direction of one seedling box is connected to the front seedling placement section 161 and the rear seedling placement section 162. When it is composed of two sheets and can be configured to place seedlings for two seedling boxes, the front seedling mounting part 161 is set in a front rising inclination position, and the rear seedling mounting part 162 is set in a rear rising inclination position. Then, the front seedling mounting part 161 and the rear seedling mounting part 162 may have an anti-tilt posture in which the side opposite to the side to which they are connected is the upper side. At this time, it is good also as a structure which can be set to the structure which can rotate one or both of the front seedling mounting part 161 and the rear seedling mounting part 162 up and down, and can switch the preliminary seedling mounting part 72 to the accommodation state.

また、図１５に示すように、予備苗載部７２の後部となる第二回動苗載部９０の上方に副予備苗載部１５０を配置し、該副予備苗載部１５０を予備苗載部７２に対して後側に偏位した位置に配置すると共に、副予備苗載部１５０を前上がり傾斜姿勢に設定し、予備苗載部７２と副予備苗載部１５０の上下方向の間隔が後側へいくほど狭くなる構成とすることにより、予備苗載部７２の後端と副予備苗載部１５０の後端の高低差を小さくすることができるばかりでなく、平面視で予備苗載部７２の後端と副予備苗載部１５０の後端の位置を近づけることができ、予備苗載部７２と副予備苗載部１５０から機体後部の苗植付部４へ向けての苗取出を容易に行うことができる。尚、予備苗載部７２の後部となる第二回動苗載部９０の下方に副予備苗載部１５０を配置することもできる。このように、副予備苗載部１５０を予備苗載部７２に対して後側に偏位した位置に配置することにより、予備苗載部７２と副予備苗載部１５０から機体後部の苗植付部４へ向けての苗取出を容易に行うことができる。   Further, as shown in FIG. 15, the auxiliary preliminary seedling mounting part 150 is disposed above the second rotating seedling mounting part 90 which is the rear part of the preliminary seedling mounting part 72, and the auxiliary preliminary seedling mounting part 150 is placed on the preliminary seedling mounting part. The auxiliary preliminary seedling mounting part 150 is set in a forwardly inclined posture, and the vertical interval between the preliminary seedling mounting part 72 and the auxiliary preliminary seedling mounting part 150 is set at a position displaced rearward with respect to the part 72. By adopting a configuration that becomes narrower toward the rear side, not only can the height difference between the rear end of the preliminary seedling mounting portion 72 and the rear end of the auxiliary preliminary seedling mounting portion 150 be reduced, but also the preliminary seedling mounting in a plan view. The rear end of the part 72 and the rear end of the auxiliary preliminary seedling mounting part 150 can be brought close to each other, and the seedling removal from the preliminary seedling mounting part 72 and the auxiliary preliminary seedling mounting part 150 toward the seedling planting part 4 at the rear of the machine body Can be easily performed. In addition, the auxiliary | assistant preliminary seedling mounting part 150 can also be arrange | positioned under the 2nd rotation seedling mounting part 90 used as the rear part of the preliminary seedling mounting part 72. FIG. In this way, by arranging the auxiliary preliminary seedling mounting part 150 at a position displaced rearward with respect to the preliminary seedling mounting part 72, seedling planting at the rear of the machine body from the preliminary seedling mounting part 72 and the auxiliary preliminary seedling mounting part 150. The seedling removal toward the attachment part 4 can be easily performed.

また、図１６に示すように、予備苗載部７２の前部となる第一回動苗載部８９の下方に副予備苗載部１５０を配置し、該副予備苗載部１５０を予備苗載部７２に対して前側に偏位した位置に配置すると共に、副予備苗載部１５０を前上がり傾斜姿勢に設定し、予備苗載部７２と副予備苗載部１５０の上下方向の間隔が前側へいくほど狭くなる構成とすることにより、予備苗載部７２の前端と副予備苗載部１５０の前端の高低差を小さくすることができるばかりでなく、平面視で予備苗載部７２の前端と副予備苗載部１５０の前端の位置を近づけることができ、機体前方の畦からの予備苗載部７２と副予備苗載部１５０への苗供給を容易に行うことができる。しかも、副予備苗載部１５０が前側寄りに配置されるので、機体の後部に苗植付部４を備えるために重量バランスが後寄りになりがちな機体において、前後重量バランスの向上が図れる。尚、上記構成において、前述のような予備苗載部７２を苗箱２枚分の苗を載置できる構成としてもよい。   In addition, as shown in FIG. 16, the auxiliary preliminary seedling mounting part 150 is arranged below the first rotating seedling mounting part 89 that is the front part of the preliminary seedling mounting part 72, and the auxiliary preliminary seedling mounting part 150 is arranged as a preliminary seedling. The auxiliary preliminary seedling mounting part 150 is set in a forwardly inclined posture, and the vertical interval between the preliminary seedling mounting part 72 and the auxiliary preliminary seedling mounting part 150 is set. By adopting a configuration that becomes narrower toward the front side, not only can the height difference between the front end of the preliminary seedling mounting portion 72 and the front end of the auxiliary preliminary seedling mounting portion 150 be reduced, but also the preliminary seedling mounting portion 72 can be seen in plan view. The positions of the front end and the front end of the auxiliary preliminary seedling mounting portion 150 can be brought close to each other, and the seedling supply to the preliminary seedling mounting portion 72 and the auxiliary preliminary seedling mounting portion 150 from the heel in front of the machine body can be easily performed. In addition, since the auxiliary preliminary seed placement unit 150 is disposed closer to the front side, the front / rear weight balance can be improved in the aircraft whose weight balance tends to be rearward because the seedling planting unit 4 is provided at the rear of the aircraft. In addition, in the said structure, it is good also as a structure which can mount the seedlings for two seedling boxes for the above-mentioned preliminary seedling mounting parts 72.

また、図１７に示すように、予備苗載部７２の前部となる第一回動苗載部８９の上方に第一の副予備苗載部１５０を配置し、該第一の副予備苗載部１５０を予備苗載部７２に対して前側に偏位した位置に配置すると共に、予備苗載部７２の後部となる第二回動苗載部９０の上方に第二の副予備苗載部１５０を配置し、該第二の副予備苗載部１５０を予備苗載部７２に対して後側に偏位した位置に配置し、第一回動苗載部８９を前上がり傾斜姿勢に設定し、予備苗載部７２と第一の副予備苗載部１５０の上下方向の間隔が前側へいくほど狭くなる構成とし、第二回動苗載部９０を後上がり傾斜姿勢に設定し、予備苗載部７２と第二の副予備苗載部１５０の上下方向の間隔が後側へいくほど狭くなる構成とすることにより、予備苗載部７２の前端と第一の副予備苗載部１５０の前端の高低差及び予備苗載部７２の後端と第二の副予備苗載部１５０の後端の高低差を小さくすることができるばかりでなく、平面視で予備苗載部７２の前端と第一の副予備苗載部１５０の前端の位置を近づけ且つ予備苗載部７２の後端と第二の副予備苗載部１５０の後端の位置を近づけることができ、機体前方の畦からの予備苗載部７２と第一の副予備苗載部１５０への苗供給及び予備苗載部７２と第二の副予備苗載部１５０から機体後部の苗植付部４へ向けての苗取出を容易に行うことができる。尚、機体に搭乗する作業者が、畦から第一の副予備苗載部１５０へ供給された苗を適宜第二の副予備苗載部１５０へ供給し、苗補給作業を行うことができる。しかも、第一及び第二の副予備苗載部１５０が予備苗載部７２の前後に振り分けて配置されるので、予備苗載部７２及び副予備苗載部１５０からなる予備苗載装置の前後重量バランスを良好に維持できる。   In addition, as shown in FIG. 17, a first auxiliary auxiliary seedling mounting part 150 is arranged above the first rotating seedling mounting part 89 that is the front part of the auxiliary seedling mounting part 72, and the first auxiliary auxiliary seedling seeding part is disposed. The placement unit 150 is disposed at a position deviated to the front side with respect to the preliminary seedling placement unit 72, and the second auxiliary preliminary seedling placement is disposed above the second rotating seedling placement unit 90 which is a rear portion of the preliminary seedling placement unit 72. Part 150, the second auxiliary seedling placing part 150 is arranged at a position deviated to the rear side with respect to the spare seedling placing part 72, and the first turning seedling placing part 89 is in an upwardly inclined posture. Set, the vertical spacing between the preliminary seedling mounting portion 72 and the first auxiliary preliminary seedling mounting portion 150 is configured to become narrower toward the front side, the second rotating seedling mounting portion 90 is set to a rear-up and inclined posture, The front end of the preliminary seedling mounting part 72 is configured such that the vertical interval between the preliminary seedling mounting part 72 and the second auxiliary preliminary seedling mounting part 150 becomes narrower toward the rear side. Not only can the height difference of the front end of the first auxiliary auxiliary seedling mounting part 150 and the height difference of the rear end of the auxiliary auxiliary seedling mounting part 72 and the rear end of the second auxiliary auxiliary seedling mounting part 150 be reduced, Visually, the front end of the preliminary seedling placement unit 72 and the front end of the first auxiliary preliminary seedling placement unit 150 are brought close to each other, and the rear end of the preliminary seedling placement unit 72 and the rear end of the second auxiliary preliminary seedling placement unit 150 are The seedling supply to the spare seedling mounting part 72 and the first auxiliary preliminary seedling mounting part 150 from the heel in front of the airframe and the rear seedling part 150 from the preliminary seedling mounting part 72 and the second auxiliary preliminary seedling mounting part 150 It is possible to easily extract seedlings toward the seedling planting unit 4. An operator boarding the airframe can appropriately supply the seedling supplied from the basket to the first auxiliary preliminary seedling mounting unit 150 to the second auxiliary preliminary seedling mounting unit 150 to perform the seedling supply operation. In addition, since the first and second auxiliary preliminary seedling mounting parts 150 are arranged before and after the preliminary seedling mounting part 72, the front and rear of the preliminary seedling mounting apparatus including the preliminary seedling mounting part 72 and the auxiliary preliminary seedling mounting part 150 are arranged. Good weight balance can be maintained.

また、図１８に示すように、予備苗載部７２の前部となる第一回動苗載部８９の上方に副予備苗載部１５０を配置し、該副予備苗載部１５０を予備苗載部７２に対して前側に偏位した位置に配置すると共に、副予備苗載部１５０を前上がり傾斜姿勢に設定し、予備苗載部７２と副予備苗載部１５０の上下方向の間隔が前側へいくほど広くなる構成とすることにより、予備苗載部７２の前端と副予備苗載部１５０の前端の高低差を大きくすることができるばかりでなく、平面視で予備苗載部７２の前端と副予備苗載部１５０の前端の位置を近づけることができ、機体前方の畦からの予備苗載部７２と副予備苗載部１５０への苗供給において、予備苗載部７２へ苗供給するときに副予備苗載部１５０が邪魔にならずに、苗供給を容易に行うことができる。尚、予備苗載部７２を前部苗載部１６１と後部苗載部１６２の２枚で構成したものにおいて、前部苗載部１６１の上方に副予備苗載部１５０を配置して上記のように構成してもよい。   Further, as shown in FIG. 18, the auxiliary preliminary seedling mounting part 150 is arranged above the first rotating seedling mounting part 89 which is the front part of the preliminary seedling mounting part 72, and the auxiliary preliminary seedling mounting part 150 is used as the preliminary seedling. The auxiliary preliminary seedling mounting part 150 is set in a forwardly inclined posture, and the vertical interval between the preliminary seedling mounting part 72 and the auxiliary preliminary seedling mounting part 150 is set. By making the configuration wider toward the front side, not only can the height difference between the front end of the preliminary seedling mounting portion 72 and the front end of the auxiliary preliminary seedling mounting portion 150 be increased, but also the preliminary seedling mounting portion 72 can be seen in plan view. The position of the front end and the front end of the auxiliary preliminary seedling mounting part 150 can be brought close to each other, and in the seedling supply to the preliminary seedling mounting part 72 and the auxiliary preliminary seedling mounting part 150 from the heel in front of the machine body, the seedling supply to the preliminary seedling mounting part 72 When the auxiliary spare seedling mounting part 150 does not get in the way, Kill. In the case where the preliminary seedling placement part 72 is composed of two pieces, the front seedling placement part 161 and the rear seedling placement part 162, the auxiliary preliminary seedling placement part 150 is arranged above the front seedling placement part 161 and the above-mentioned You may comprise as follows.

また、図１９に示すように、予備苗載部７２の前部となる第一回動苗載部８９の上方に第一の副予備苗載部１５０を配置し、該第一の副予備苗載部１５０を予備苗載部７２に対して前側に偏位した位置に配置し、予備苗載部７２の後部となる第二回動苗載部９０の上方に第二の副予備苗載部１５０を配置し、該第二の副予備苗載部１５０を予備苗載部７２に対して後側に偏位した位置に配置すると共に、第一回動苗載部８９を前下がり傾斜姿勢に設定し、予備苗載部７２と第一の副予備苗載部１５０の上下方向の間隔が前側へいくほど広くなる構成とし、第二回動苗載部９０を後下がり傾斜姿勢に設定し、予備苗載部７２と第二の副予備苗載部１５０の上下方向の間隔が後側へいくほど広くなる構成とすることにより、予備苗載部７２の前端と第一の副予備苗載部１５０の前端の高低差及び予備苗載部７２の後端と第二の副予備苗載部１５０の後端の高低差を大きくすることができるばかりでなく、平面視で予備苗載部７２の前端と第一の副予備苗載部１５０の前端の位置を近づけ且つ予備苗載部７２の後端と第二の副予備苗載部１５０の後端の位置を近づけることができ、機体前方の畦からの予備苗載部７２と第一の副予備苗載部１５０への苗供給において、予備苗載部７２へ苗供給するときに第一の副予備苗載部１５０が邪魔にならずに、苗供給を容易に行うことができると共に、予備苗載部７２と第二の副予備苗載部１５０から機体後部の苗植付部４へ向けての苗取出において、予備苗載部７２から苗取出するときに第二の副予備苗載部１５０が邪魔にならずに、苗取出を容易に行うことができる。   Further, as shown in FIG. 19, a first auxiliary auxiliary seedling mounting part 150 is disposed above the first rotating seedling mounting part 89 that is the front part of the preliminary seedling mounting part 72, and the first auxiliary auxiliary seedling seeding part is placed. The mounting part 150 is disposed at a position deviated to the front side with respect to the preliminary seedling mounting part 72, and the second auxiliary preliminary seedling mounting part is located above the second rotating seedling mounting part 90 which is the rear part of the preliminary seedling mounting part 72. 150, and the second auxiliary seedling placement part 150 is arranged at a position deviated rearward with respect to the preliminary seedling placement part 72, and the first rotating seedling placement part 89 is in a forward downward inclined posture. Set, the vertical spacing between the preliminary seedling mounting portion 72 and the first auxiliary preliminary seedling mounting portion 150 is configured to become wider as it goes to the front side, the second rotating seedling mounting portion 90 is set to a rear-falling inclined posture, The front end of the preliminary seedling placement portion 72 is configured such that the vertical spacing between the preliminary seedling placement portion 72 and the second auxiliary preliminary seedling placement portion 150 increases toward the rear side. Not only can the height difference of the front end of the first auxiliary auxiliary seedling mounting portion 150 and the height difference of the rear end of the auxiliary auxiliary seedling mounting portion 72 and the rear end of the second auxiliary auxiliary seedling mounting portion 150 be increased, Visually, the front end of the preliminary seedling placement unit 72 and the front end of the first auxiliary preliminary seedling placement unit 150 are brought close to each other, and the rear end of the preliminary seedling placement unit 72 and the rear end of the second auxiliary preliminary seedling placement unit 150 are In the seedling supply to the preliminary seedling placement unit 72 and the first auxiliary preliminary seedling placement unit 150 from the heel in front of the aircraft, the first auxiliary preliminary seedling placement can be performed when the seedling is supplied to the preliminary seedling placement unit 72. The seedling can be easily supplied without disturbing the section 150, and the seedling removal from the spare seedling mounting section 72 and the second auxiliary preliminary seedling mounting section 150 toward the seedling planting section 4 at the rear of the machine body is performed. , The second auxiliary spare seed placement unit 150 does not get in the way when taking out the seedlings from the preliminary seedling placement unit 72. It can be carried out in.

また、予備苗載部７２の後部となる第二回動苗載部９０の機体の左右方向外側に副予備苗載部１５０を配置することにより、機体の側方の畦から副予備苗載部１５０へ容易に苗供給することができ、種々の苗供給の形態に対応させることができ、作業形態に応じて苗補給作業を行うことができる。尚、予備苗載部７２を前部苗載部１６１と後部苗載部１６２の２枚で構成したものにおいて、後部苗載部１６２の左右方向外側に副予備苗載部１５０を配置してもよい。   Further, by arranging the auxiliary preliminary seedling mounting part 150 on the outer side in the left and right direction of the machine body of the second rotating seedling mounting part 90 which is the rear part of the preliminary seedling mounting part 72, the auxiliary preliminary seedling mounting part is formed from the side fold of the machine body. The seedling can be easily supplied to 150, can be made to correspond to various forms of seedling supply, and the seedling replenishment work can be performed according to the work form. In addition, in the case where the preliminary seedling placement part 72 is composed of two pieces, that is, the front seedling placement part 161 and the rear seedling placement part 162, the auxiliary preliminary seedling placement part 150 may be disposed outside the rear seedling placement part 162 in the left-right direction. Good.

また、予備苗載部７２の上方に位置する副予備苗載部１５０を、機体の左右方向外側に移動させて退避状態に切り替える構成とすることができる。これにより、副予備苗載部１５０を退避状態にして予備苗載部７２のみを使用して苗補給作業を行うとき、機体に搭乗する作業者は、予備苗載部７２の機体の左右方向内側から退避状態の副予備苗載部１５０が邪魔にならずに容易に苗補給作業が行える。   Moreover, it can be set as the structure which moves the auxiliary | assistant seedling mounting part 150 located above the preliminary seedling mounting part 72 to the retreat | retreat state by moving to the left-right direction outer side of a body. As a result, when performing the seedling replenishment operation using only the preliminary seedling mounting portion 72 with the auxiliary preliminary seedling mounting portion 150 in the retracted state, the worker boarding the machine body can move the spare seedling mounting portion 72 inward in the left-right direction. Therefore, the seedling replenishing operation can be easily performed without disturbing the auxiliary preliminary seedling mounting portion 150 in the retracted state.

また、予備苗載部７２の回動苗載部８９，９０を回動させて予備苗載部７２を収納しようとするのに連動して、副予備苗載部１５０を退避状態に自動的に切り替える退避連動機構を設けることができる。具体的には、第一回動苗載部８９及び第二回動苗載部９０のうち、予備苗載部７２の収納にあたり先に上側へ回動させる第二回動苗載部９０と副予備苗載部１５０を退避用の連動ケーブル１６３で連結し、第二回動苗載部９０の上側への回動で、該第二回動苗載部９０が載置状態の副予備苗載部１５０の位置に到達する前に、副予備苗載部１５０が退避状態に自動的に回動する。これにより、副予備苗載部１５０が載置状態のままで第二回動苗載部（回動苗載部）９０を回動させることにより、副予備苗載部１５０及び第二回動苗載部９０が破損するようなことを防止できると共に、副予備苗載部１５０を退避状態へ退避させる手間を省略でき、予備苗載部７２及び副予備苗載部１５０の収納作業の簡素化が図れる。尚、第一回動苗載部８９と副予備苗載部１５０も別の退避用の連動ケーブル１６３で連結し、第一回動苗載部８９の上側への回動で、該第一回動苗載部８９が載置状態の副予備苗載部１５０の位置に到達する前に、副予備苗載部１５０が退避状態に自動的に回動する構成とすれば、仮に作業者が収納手順を誤って第二回動苗載部９０よりも先に第一回動苗載部８９を回動しても、該第一回動苗載部８９と副予備苗載部１５０が干渉して破損するようなことを防止できる。   In addition, the auxiliary seedling placement unit 150 is automatically moved to the retracted state in conjunction with the rotation of the rotating seedling placement units 89 and 90 of the preliminary seedling placement unit 72 to store the spare seedling placement unit 72. A retraction interlocking mechanism for switching can be provided. Specifically, of the first rotating seedling mounting part 89 and the second rotating seedling mounting part 90, the second rotating seedling mounting part 90 and the auxiliary rotating seedling part 90 that rotate upward first when storing the preliminary seedling mounting part 72. The auxiliary seedling mounting part 150 is connected by a retracting interlocking cable 163, and the second rotating seedling mounting part 90 is placed in the mounted state by rotating the second rotating seedling mounting part 90 to the upper side. Before reaching the position of the portion 150, the auxiliary preliminary seedling placement portion 150 automatically rotates to the retracted state. As a result, the auxiliary auxiliary seedling placement part 150 and the second rotational seedling are rotated by rotating the second rotary seedling placement part (the rotational seedling placement part) 90 while the auxiliary preliminary seedling placement part 150 is placed. It is possible to prevent the mounting portion 90 from being damaged, and to save the trouble of retracting the auxiliary preliminary seedling mounting portion 150 to the retracted state, thereby simplifying the storing operation of the preliminary seedling mounting portion 72 and the auxiliary preliminary seedling mounting portion 150. I can plan. The first rotating seedling mounting part 89 and the auxiliary preliminary seedling mounting part 150 are also connected by a separate interlocking cable 163 for retraction. If the auxiliary preliminary seedling mounting part 150 is automatically rotated to the retracted state before the moving seedling mounting part 89 reaches the position of the auxiliary auxiliary seedling mounting part 150 in the placed state, the operator temporarily stores it. Even if the first rotating seedling mounting part 89 is rotated before the second rotating seedling mounting part 90 by mistake, the first rotating seedling mounting part 89 and the auxiliary preliminary seedling mounting part 150 interfere with each other. Can be prevented from being damaged.

また、予備苗載部７２の回動苗載部８９，９０を回動させて予備苗載部７２の収納が完了するのに連動して、副予備苗載部１５０を載置状態に自動的に切り替える収納連動機構を設け、予備苗載部７２及び副予備苗載部１５０をコンパクトに収納する構成とすることができる。具体的には、副予備苗載部１５０の回動支点軸１５１回りに回動する連動アーム１６４を設け、第二回動苗載部９０と連動アーム１６４を第一の収納用の連動ケーブル１６５で連結し、第一回動苗載部８９と副予備苗載部１５０を第二の収納用の連動ケーブル１６６で連結し、該第二の収納用の連動ケーブル１６６のアウターケーブル１６６ａの副予備苗載部１５０側の端部を連動アーム１６４に取り付けている。予備苗載部７２を収納するとき、先ず第二回動苗載部９０を回動すると、第一の収納用の連動ケーブル１６５を介して連動アーム１６４が所定位置まで回動するが、この状態では連動アーム１６４が回動しても第二の収納用の連動ケーブル１６６は緊張しないため、副予備苗載部１５０は載置状態に切り替えられない構成となっている。その後、第一回動苗載部８９を回動すると、第二の収納用の連動ケーブル１６６を介して副予備苗載部１５０は載置状態に自動的に切り替えられる構成となっている。尚、第二回動苗載部９０を収納状態へ回動せずに第一回動苗載部８９のみを収納状態へ回動した場合は、連動アーム１６４が所定位置まで回動していないので、第二の収納用の連動ケーブル１６６が操作されても副予備苗載部１５０は載置状態に切り替えられない構成となっている。従って、第一回動苗載部８９及び第二回動苗載部９０を共に収納状態にすると、副予備苗載部１５０が載置状態に自動的に回動する。これにより、副予備苗載部１５０を載置状態へ回動させる手間を省略でき、予備苗載部７２及び副予備苗載部１５０の収納作業の簡素化が図れる。尚、簡易的な構成として、第一の収納用の連動ケーブル１６５及び連動アーム１６４を設けず、第一回動苗載部８９と副予備苗載部１５０を連結する第二の収納用の連動ケーブル１６６のみを設けた構成としてもよい。   In addition, the auxiliary preliminary seed placement section 150 is automatically set to the placement state in conjunction with the rotation of the rotary seed placement sections 89 and 90 of the preliminary seed placement section 72 to complete the storage of the preliminary seed placement section 72. It is possible to provide a storage interlocking mechanism for switching between the auxiliary seedling mounting portion 72 and the auxiliary preliminary seedling mounting portion 150 in a compact manner. Specifically, an interlocking arm 164 that rotates about the rotation fulcrum shaft 151 of the auxiliary preliminary seedling mounting part 150 is provided, and the second rotating seedling mounting part 90 and the interlocking arm 164 are connected to the first storing interlocking cable 165. And the first rotating seedling mounting part 89 and the auxiliary spare seedling mounting part 150 are connected by a second storage interlocking cable 166, and the auxiliary storage of the outer cable 166a of the second storage interlocking cable 166 is performed. The end on the seedling mounting part 150 side is attached to the interlocking arm 164. When storing the preliminary seedling mounting portion 72, first, when the second rotating seedling mounting portion 90 is rotated, the interlocking arm 164 is rotated to a predetermined position via the first storing interlocking cable 165. Then, even if the interlocking arm 164 rotates, the second storage interlocking cable 166 does not become tensioned, so that the auxiliary preliminary seedling mounting part 150 cannot be switched to the mounting state. Thereafter, when the first rotating seedling mounting portion 89 is rotated, the auxiliary preliminary seedling mounting portion 150 is automatically switched to the mounting state via the second interlocking cable 166 for storage. In addition, when only the 1st rotation seedling mounting part 89 is rotated to the accommodation state without rotating the 2nd rotation seedling mounting part 90 to the accommodation state, the interlocking arm 164 is not rotated to a predetermined position. Therefore, even if the 2nd interlocking | linkage cable 166 for accommodation is operated, the auxiliary | assistant auxiliary seedling mounting part 150 becomes a structure which cannot be switched to a mounting state. Therefore, when the first rotating seedling mounting part 89 and the second rotating seedling mounting part 90 are both stored, the auxiliary preliminary seedling mounting part 150 is automatically rotated to the mounting state. Thereby, the effort which rotates the auxiliary | assistant preliminary seedling mounting part 150 to a mounting state can be abbreviate | omitted, and the simplification of the accommodation operation | work of the preliminary | backup seedling mounting part 72 and the auxiliary | assistant seedling mounting part 150 can be achieved. As a simple configuration, the first storing interlocking cable 165 and the interlocking arm 164 are not provided, and the second storing interlocking unit that connects the first rotating seedling mounting part 89 and the auxiliary preliminary seedling mounting part 150 is provided. A configuration in which only the cable 166 is provided may be employed.

また、図２０に示すように、予備苗載部７２の下方に空の苗箱を移送するための空箱移送レール１６７を設けることができる。この空箱移送レール１６７は、固定苗載部８８及び回動苗載部８９の各苗載部に対応して複数に分割して設けられ、苗載部と一体で支持されている。従って、回動苗載部８９を固定苗載部８８の上方へ回動した状態では、回動苗載部８９に対応する空箱移送レール１６７が回動苗載部８９の上方に位置し、一方向に長い予備苗載部７２が高い畦に干渉する等の圃場条件に応じて苗載部を上下複数段の構成として使用するときでも、前記空箱移送レール１６７を空箱載部あるいは苗を収容する苗箱載部として使用することが可能であり、苗補給作業性を向上させることができる。   In addition, as shown in FIG. 20, an empty box transfer rail 167 for transferring an empty seedling box can be provided below the preliminary seedling placement unit 72. The empty box transfer rail 167 is divided into a plurality of portions corresponding to the seedling placement portions of the fixed seedling placement portion 88 and the rotating seedling placement portion 89, and is supported integrally with the seedling placement portion. Therefore, in a state where the rotating seedling mounting part 89 is rotated above the fixed seedling mounting part 88, the empty box transfer rail 167 corresponding to the rotating seedling mounting part 89 is positioned above the rotating seedling mounting part 89, The empty box transfer rail 167 is used as an empty box mounting part or a seedling even when the seedling mounting part is used as a plurality of upper and lower stages depending on the field conditions such as the preparatory seedling mounting part 72 that is long in one direction interferes with a high cocoon. Can be used as a seedling box mounting portion for storing the seedling, and the seedling replenishment workability can be improved.

また、固定苗載部８８の苗載面と回動苗載部８９の苗載面の高さを異ならせて段差を設けることができる。これにより、予備苗載部７２上の一部の苗を前記段差で受けることができるので、機体の走行の加減速等で予備苗載部７２に搭載する複数の苗が、その重量に伴う慣性力により予備苗載部７２の端部から脱落しようとするのを防止できる。尚、前側に位置する苗載部ほど苗載面が高くなるように設定すれば、苗補給作業のために走行停止することで頻繁に発生する急減速により予備苗載部７２上の苗が該予備苗載部７２の前端から前方へ飛び出すようなことを防止できる。   Further, the height of the seedling mounting surface of the fixed seedling mounting portion 88 and the height of the seedling mounting surface of the rotating seedling mounting portion 89 can be made different from each other. Thereby, since some seedlings on the preliminary seedling mounting portion 72 can be received at the step, the plurality of seedlings mounted on the preliminary seedling mounting portion 72 by acceleration / deceleration of the traveling of the airframe, etc., is subject to inertia due to its weight. It is possible to prevent the force from being removed from the end portion of the preliminary seedling placement portion 72 by force. In addition, if the seedling placement surface located at the front side is set so that the seedling placement surface becomes higher, the seedling on the preliminary seedling placement portion 72 is caused by the sudden deceleration that frequently occurs when the traveling is stopped for seedling replenishment work. Jumping forward from the front end of the preliminary seedling placement portion 72 can be prevented.

以上説明した種々の形態の構成について、予備苗載部７２と副予備苗載部１５０の上下方向の間隔が前後で異なる構成とするにあたり、予備苗載部７２及び副予備苗載部１５０の一方のみを傾斜させてもよいが、予備苗載部７２及び副予備苗載部１５０の両方を互いに異なる傾斜角度で傾斜させることもでき、予備苗載部７２及び副予備苗載部１５０の両方を互いに反対側に傾斜させることで、予備苗載部７２及び副予備苗載部１５０を共に水平に近い傾斜姿勢としながら、合理的に前記上下方向の間隔を前後で異ならせることができる。   Regarding the configuration of the various embodiments described above, when the vertical seedling mounting portion 72 and the auxiliary preliminary seedling mounting portion 150 have different vertical intervals, one of the preliminary seedling mounting portion 72 and the auxiliary preliminary seedling mounting portion 150 However, both the preliminary seedling placement part 72 and the auxiliary preliminary seedling placement part 150 can be inclined at different inclination angles. By inclining to the opposite sides, the vertical interval can be rationally varied forward and backward while the preliminary seedling mounting portion 72 and the auxiliary preliminary seedling mounting portion 150 are both inclined substantially horizontally.

本発明は、田植機以外に、野菜移植機やイ草移植機等の色々な苗植機に適用できる。   The present invention can be applied to various seedling transplanters such as a vegetable transplanter and a grass transplanter in addition to a rice transplanter.

１：乗用型田植機、２：走行車体、４：苗植付部、３８：予備苗載台、７２：予備苗載部、７９：回動ピン、８８：固定苗載部、８９：第一回動苗載部、９０：第二回動苗載部、１５０：副予備苗載部、Ｃ：苗箱   1: riding type rice transplanter, 2: traveling vehicle body, 4: seedling planting part, 38: preliminary seedling mounting base, 72: preliminary seedling mounting part, 79: rotating pin, 88: fixed seedling mounting part, 89: first Rotating seedling placement section, 90: second turning seedling placement section, 150: auxiliary preliminary seedling placement section, C: seedling box

Claims (4)

走行車体（２）の後部に苗植付部（４）を設け、苗を載せた苗箱（Ｃ）又は苗を載せた苗掬い板を載置する予備苗載台（３８）を走行車体（２）の側部に設け、予備苗載台（３８）を、複数の苗箱（Ｃ）又は複数の苗掬い板を前後方向に連続して移動可能に載置できる予備苗載部（７２）と、該予備苗載部（７２）よりも載置スペースが小さい副予備苗載部（１５０）で構成した苗植機において、予備苗載部（７２）の前部の上方に第一の副予備苗載部（１５０）を配置し、予備苗載部（７２）の後部の上方に第二の副予備苗載部（１５０）を配置し、予備苗載部（７２）の前部を前上がり傾斜姿勢に構成し、予備苗載部（７２）の後部を後上がり傾斜姿勢に構成し、予備苗載部（７２）と第一の副予備苗載部（１５０）との上下方向の間隔が前側へいくほど狭くなり、予備苗載部（７２）と第二の副予備苗載部（１５０）との上下方向の間隔が後側へいくほど狭くなる構成とした苗植機。 A seedling planting part (4) is provided at the rear part of the traveling vehicle body (2), and a seedling box (C) on which the seedlings are placed or a preliminary seedling placing stand (38) on which a seedling seedling plate on which the seedlings are placed is placed on the traveling vehicle body ( 2) A spare seedling placing part (72) which can be placed on the side of the spare seedling placing base (38) so that a plurality of seedling boxes (C) or a plurality of seedling sowing boards can be continuously moved in the front-rear direction. When, in the seedling planting machine configured in the pre Naeno portion (72) sub spare Naeno unit mounted space is smaller than the (150), preliminary Naeno front part of the upper to the first (72) secondary The preliminary seedling placement part (150) is arranged , the second auxiliary preliminary seedling placement part (150) is arranged above the rear part of the preliminary seedling placement part (72), and the front part of the preliminary seedling placement part (72) is placed in front. configure the upward inclined position, constitute pre Naeno section rear (72) rearwardly and upwardly inclined position, vertical spacing between the pre Naeno portion (72) and the first sub-pre Naeno unit (150) Narrows toward the front side, pre Naeno portion (72) and a second sub-pre Naeno unit (150) and the distance between the upper and lower direction becomes narrower toward the rear structure as the seedling planting machine. 予備苗載部（７２）には、上側へ回動して収納状態へ移動可能な回動苗載部（８９）を含む複数の苗載部を備え、予備苗載部（７２）の下方には、空の苗箱（Ｃ）又は空の苗掬い板を移送するための移送レール（１６７）を、各苗載部に対応して複数に分割すると共に各苗載部に支持させて設け、複数の苗載部は前側の苗載部ほど苗載面が高くなる段差を構成した請求項１に記載の苗植機。The preliminary seedling placement part (72) is provided with a plurality of seedling placement parts including a rotating seedling placement part (89) that can rotate upward and move to the storage state, and is provided below the preliminary seedling placement part (72). Is provided with a transfer rail (167) for transferring an empty seedling box (C) or an empty seedling sowing plate in a plurality corresponding to each seedling mounting part and supported by each seedling mounting part, The seedling planting machine according to claim 1, wherein the plurality of seedling placement parts configure a step in which the seedling placement surface becomes higher toward the front seedling placement part. 苗植付部（４）への伝動を入切する植付クラッチ（１６９）を設け、植付クラッチ（１６９）の従動クラッチ爪体（１７１）の外周面には操作溝（１７１ａ）を備え、操作溝（１７１ａ）には、操作ピン（１７３）が挿入されることにより、従動クラッチ爪体（１７１）の正方向の回転で該従動クラッチ爪体（１７１）を駆動クラッチ爪体（１７０）から離れる側に移動させて該従動クラッチ爪体（１７１）への伝動を断つ正転用の案内面（１７１ｂ）と、従動クラッチ爪体（１７１）の逆方向の回転で該従動クラッチ爪体（１７１）を駆動クラッチ爪体（１７０）から離れる側に移動させて該従動クラッチ爪体（１７１）への伝動を断つ逆転用の案内面（１７１ｃ）とを備えた請求項１又は請求項２に記載の苗植機。A planting clutch (169) for turning on and off the transmission to the seedling planting part (4) is provided, and an operation groove (171a) is provided on the outer peripheral surface of the driven clutch pawl (171) of the planting clutch (169), By inserting the operation pin (173) into the operation groove (171a), the driven clutch pawl (171) is moved away from the drive clutch pawl (170) by the forward rotation of the driven clutch pawl (171). The driven clutch pawl body (171) is rotated by the reverse rotation of the forward clutch claw body (171) and the forward-rotating guide surface (171b) which is moved away from the driven clutch pawl body (171) and cuts off the transmission to the driven clutch pawl body (171). The guide surface (171c) for reverse rotation which moves a drive clutch nail | claw body (170) to the side away from a drive clutch nail | claw body (171) and cut | disconnects the transmission to this driven clutch nail | claw body (171) is provided. Seedling machine. 走行車体（２）の後部に苗植付部（４）を設け、苗を載せた苗箱（Ｃ）又は苗を載せた苗掬い板を載置する予備苗載台（３８）を走行車体（２）の側部に設け、予備苗載台（３８）を、複数の苗箱（Ｃ）又は複数の苗掬い板を前後方向に連続して移動可能に載置できる予備苗載部（７２）と、該予備苗載部（７２）よりも載置スペースが小さい副予備苗載部（１５０）で構成した苗植機において、予備苗載部（７２）の前部の上方に副予備苗載部（１５０）を配置し、予備苗載部（７２）には上側へ回動して収納状態へ移動可能な回動苗載部（８９）を備え、回動苗載部（８９）の回動に連動して、副予備苗載部（１５０）を、回動苗載部（８９）の回動領域に配置される苗箱（Ｃ）又は苗掬い板の載置状態から、前記回動領域外へ自動的に退避させる退避連動機構を設けた苗植機。A seedling planting part (4) is provided at the rear part of the traveling vehicle body (2), and a seedling box (C) on which the seedlings are placed or a preliminary seedling placing stand (38) on which a seedling seedling plate on which the seedlings are placed is placed on the traveling vehicle body ( 2) A spare seedling placing part (72) which can be placed on the side of the spare seedling placing base (38) so that a plurality of seedling boxes (C) or a plurality of seedling sowing boards can be continuously moved in the front-rear direction. And in the seedling planting machine comprised by the auxiliary | assistant seedling mounting part (150) in which mounting space is smaller than this preliminary | backup seedling mounting part (72), an auxiliary | assistant seedling mounting is carried out above the front part of the preliminary | backup seedling mounting part (72). The preliminary seedling mounting part (72) is provided with a rotating seedling mounting part (89) that can be moved upward and moved to the storage state. In conjunction with the movement, the auxiliary preliminary seedling placing part (150) is rotated from the placement state of the seedling box (C) or the seedling-seeking plate placed in the turning area of the turning seedling placing part (89). Automatically out of range Avoid seedling planting machine provided with a retracting linkage mechanism for.
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