JP6737245B2 - Transplanter - Google Patents

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JP6737245B2
JP6737245B2 JP2017129393A JP2017129393A JP6737245B2 JP 6737245 B2 JP6737245 B2 JP 6737245B2 JP 2017129393 A JP2017129393 A JP 2017129393A JP 2017129393 A JP2017129393 A JP 2017129393A JP 6737245 B2 JP6737245 B2 JP 6737245B2
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seedling
seedlings
frame
rotating
seedling box
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JP2019010062A5 (en
JP2019010062A (en
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村並　昌実
村並　　昌実
暢宏 山根
暢宏 山根
幸太 東
幸太 東
昭雄 田▲崎▼
昭雄 田▲崎▼
大久保　嘉彦
大久保　　嘉彦
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Iseki and Co Ltd
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Description

本発明は、野菜等の苗を圃場に植え付ける移植機に関するものである。 The present invention relates to a transplanter for planting seedlings such as vegetables in a field.

作業者が投入する苗を搬送し、苗の植付装置に供給する位置で落下させる供給装置を備え、供給装置よりも機体前側に補充用の苗を収容した苗箱を複数積載する載置台を備える移植機が存在する。 Equipped with a supply device that conveys the seedlings that the worker inputs and drops them at the position where they are supplied to the planting device for seedlings, and a mounting table for loading multiple seedling boxes containing supplementary seedlings on the front side of the machine than the supply device. There are transplanters to prepare.

特開２０１２−８０８０５号公報JP 2012-80805 A

このような移植機は、載置台に苗箱を並べて配置するものであるが、苗箱を複数積載すべく、左右幅を広く取っている。これにより、載置台の左右両側部は車体から大きく突出するので、移動中に載置台が壁や柱等の障害物に接触して破損する恐れがある。また、倉庫等に収容するときには、左右方向に余分に収容スペースが必要になる。 In such a transplanting machine, seedling boxes are arranged side by side on a mounting table, but the lateral width is wide in order to load a plurality of seedling boxes. As a result, the left and right side portions of the mounting table largely protrude from the vehicle body, so that the mounting table may be damaged by contact with an obstacle such as a wall or a pillar during movement. Further, when accommodating in a warehouse or the like, an additional accommodating space is required in the left-right direction.

上記の問題を解消するには、載置台を取り外す必要があるが、着脱作業を行うと、時間と労力がかかる問題がある。 In order to solve the above problems, it is necessary to remove the mounting table, but when the mounting and demounting work is performed, there is a problem that it takes time and labor.

そこで、本発明の課題は、苗箱の積載量を確保しつつ、左右幅を抑えることのできる載置台を有する移植機を提供することである。 Then, the subject of this invention is providing the transplanter which has the mounting base which can suppress the left-right width, ensuring the loading capacity of a seedling box.

上記課題は、下記構成によって達成される。 The above object can be achieved by the following configurations.

すなわち、請求項１に係る発明は、走行輪（５）により走行する車体（１０）と、該車体（１０）に配置され、苗を植え付ける植付装置（７）と、回転して苗を移送して該植付装置（７）に供給する供給装置（６）と、植付用の苗を収容する苗箱（３８）を載置する苗載せ台（１００）を備えた移植機において、該苗載せ台（１００）を支持する苗載せ支柱（１０１）を前記供給装置（６）に設け、該苗載せ支柱（１０１）は、前記供給装置（６）の回転に連動せず独立して回転可能に設け、前記苗載せ台（１００）は、前記苗載せ支柱（１０１）に苗箱（３８）を傾斜姿勢で支持する支持アーム（１０３，１０４，１０５…）を供給装置（６）の外縁部に向けて設け、該支持アーム（１０３，１０４，１０５…）の外側端部は、前記供給装置（６）の外縁部よりも内側に位置することを特徴とする移植機である。 That is, the invention according to claim 1 relates to a vehicle body (10) traveling by traveling wheels (5), a planting device (7) arranged on the vehicle body (10) for planting seedlings, and transferring the seedlings by rotation. In the transplanter provided with a supply device (6) for supplying the seedlings to the planting device (7) and a seedling stand (100) on which a seedling box (38) containing a seedling for planting is placed. The feeding device (6) is provided with a seedling placing column (101) for supporting the seedling placing table (100), and the seedling placing column (101) rotates independently of the rotation of the feeding device (6). The seedling mount (100) is provided so that the support arm (103, 104, 105...) Supporting the seedling box (38) in an inclined posture on the seedling support column (101) is provided on the outer edge of the supply device (6). The transplanter is characterized in that the outer ends of the support arms (103, 104, 105,...) Are located inside the outer edge of the supply device (6) .

請求項２に係る発明は、前記支持アーム（１０３，１０４，１０５…）は上下方向に複数設け、機体下側ほど長くし、複数の該支持アーム（１０３，１０４，１０５…）に載置する苗箱（３８）は、機体下側ほど前記供給装置（６）の外縁部に近付く傾斜姿勢となることを特徴とする請求項１に記載の移植機である。 According to a second aspect of the present invention, before Ki支 lifting arm (103, 104, 105 ...) are a plurality in the vertical direction and long enough body lower, placing a plurality of the support arms (103, 104, 105 ...) The transplanting machine according to claim 1, wherein the seedling box (38) to be placed is in an inclined posture such that the seedling box (38) to be placed approaches the outer edge portion of the supply device (6) toward the lower side of the machine body .

請求項３にかかる発明は、前記供給装置（６）の機体前側に植付用の苗を収容する苗箱（３８）を載置する載置台（３０）を配置し、該苗載せ台（３０）は、機体外側に向けて回動可能な回動苗載せ台（３６）を左右一側に備え、前記苗載せ台（３０）の左右中央部は、前記車体（１０）の左右中央部よりも左右他側に偏倚させる構成としたことを特徴とする請求項１または２に記載の移植機である。 According to a third aspect of the present invention, a mounting table (30) for mounting a seedling box (38) containing a seedling for planting is disposed on the front side of the body of the supply device (6), and the seedling mounting table (30). ) Is provided with a turning seedling placing table (36) which is rotatable toward the outside of the machine body on one side of the left and right sides, and a left and right central portion of the seedling placing table (30) is located from a left and right central portion of the vehicle body (10). 3. The transplanter according to claim 1 , wherein the transplanter is configured to be biased to the other side of the left and right sides .

請求項４に係る発明は、前記回動苗載せ台（３６）は、前記苗載せ台（３０）に回動可能に装着される第１回動枠（３６ａ）と、第１回動枠（３６ａ）から機体前側及び後側に突出させて配置する第２回動枠（３６ｂ）で構成し、該第２回動枠（３６ｂ）の第１回動枠（３６ａ）から機体後側への突出量は、第１回動枠（３６ａ）から機体前側への突出量よりも大きくしたことを特徴とする請求項３に記載の移植機である。 In the invention according to claim 4, the rotating seedling placing table (36) includes a first rotating frame (36a) rotatably attached to the seedling placing table (30), and a first rotating frame (36a). 36a) is configured by a second rotating frame (36b) arranged so as to project from the front side and the rear side of the machine body, and from the first rotating frame (36a) of the second rotation frame (36b) to the rear side of the machine body. protrusion amount is an implantable device according to claim 3, characterized in that the first rotation frame (36a) is larger than the amount of projection of the body front.

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また、上記請求項１から請求項４の発明に関連する、第１の関連発明は、前記苗載せ支柱（１０１）は供給装置（６）に上下反転させて装着可能とすると共に、前記供給装置（６）と独立して回転する状態と連動して回転する状態とを選択可能としたことを特徴とする移植機である。 Also, related to the invention of claim 4 the first aspect, the first related invention, the seedling strut (101) is to be mounted upside down on feeder (6), said supply The transplanter is characterized in that a state of rotating independently of the device (6) and a state of rotating in conjunction with it can be selected.

請求項１記載の移植機によれば、苗載せ支柱（１０１）を供給装置（６）の回転に連動せず回転可能に設けたことにより、作業者が苗載せ台（１００）を回動させて苗箱（３８）を苗を取り出す作業位置に近付けることができるので、苗の取り出し作業の能率が向上する。 According to the transplanting machine of claim 1, the operator rotates the seedling placing stand (100) by providing the seedling placing pillar (101) rotatably without interlocking with the rotation of the supply device (6). Since the seedling box (38) can be brought closer to the work position for taking out the seedlings, the efficiency of the work for taking out the seedlings is improved.

また、苗載せ台（１００）を供給装置（６）の上方に配置することにより、苗載せ台（１００）が車体（１０）の左右外側に突出することが防止され、移動中に壁や柱等の障害物に接触して破損することや、収納に必要なスペースが広くなることが防止される。
また、支持アーム（１０３，１０４，１０５…）の外側端部を供給装置（６）の外縁部よりも内側に位置させたことにより、積載する苗箱（３８）が供給装置（６）の上方を覆い、苗の投入を妨げることが防止され、作業能率が向上する。
また、苗箱（３８）が供給装置（６）の苗の投入口を多い視認しにくくすることを防止できるので、苗を供給し損なうことが防止され、植付装置（７）が苗を植え付けない欠株が発生しにくくなる。これにより、作業者が手作業で苗を植え付ける作業が不要になり、作業能率が向上すると共に、時間と労力の軽減が図られる。 Further, by disposing the seedling placing table (100) above the supply device (6), it is possible to prevent the seedling placing table (100) from protruding to the left and right outside of the vehicle body (10), and to move the wall or the pillar during the movement. It is possible to prevent contact with an obstacle such as the above and damage it, and to prevent the space required for storage from increasing.
Further, since the outer ends of the support arms (103, 104, 105...) Are located inside the outer edge of the feeder (6), the seedling box (38) to be loaded is above the feeder (6). It prevents the seedlings from being thrown in and the work efficiency is improved.
Further, since it is possible to prevent the seedling box (38) from making it difficult to visually recognize many seedling input ports of the supply device (6), it is possible to prevent the seedling supply from being failed, and the planting device (7) plants the seedling. It will be harder to run out of stock. This eliminates the need for a worker to manually plant seedlings, improving work efficiency and reducing time and labor.

請求項２記載の移植機によれば、上記請求項１記載の発明の効果に加えて、支持アーム（１０３，１０４，１０５…）は機体下側ほど長くし、苗箱（３８）を供給装置（６）の外縁部に近付く傾斜姿勢とすることにより、苗箱（３８）の苗の収容面を作業者に向けるので、作業者が苗を取り出しやすく、作業能率が向上する。 According to the transplanting machine of claim 2, in addition to the effect of the invention of claim 1, the support arms (103, 104, 105...) are made longer toward the lower side of the machine body, and the seedling box (38) is supplied to the feeder. With the inclined posture approaching the outer edge of (6), since the seedling storage surface of the seedling box (38) faces the worker, the worker can easily take out the seedling and the working efficiency is improved .

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請求項３記載の移植機によれば、上記請求項１または２に記載の発明の効果に加えて、回動苗載せ台（３６）を機体外側に回動させると、供給装置（６）に苗を投入する作業者に近い位置に回動苗載せ台（３６）を近付けることができるので、苗箱（３８）から苗が取り易く、作業能率が向上する。
また、苗載せ台（３０）の左右中央部を車体（１０）の左右中央部よりも機体左右一側に偏倚させたことにより、回動苗載せ台（３６）を機体外側に開いた際に左右のバランスが取り易く、車体（１０）の走行性や植付精度が向上する。 According to the transplanting machine of claim 3, in addition to the effect of the invention of claim 1 or 2, when the rotating seedling placing table (36) is rotated to the outside of the machine body, the supplying device (6) is provided. Since the rotating seedling placing table (36) can be brought close to the operator who inputs the seedlings, the seedlings can be easily taken from the seedling box (38), and the work efficiency is improved .
In addition, the lateral center portion of the seedling placing table (30) is biased to the left and right sides of the machine body with respect to the left and right central portion of the vehicle body (10), so that when the rotating seedling placing table (36) is opened to the outside of the machine body. It is easy to balance left and right, and the running performance and planting accuracy of the vehicle body (10) are improved.

請求項４記載の移植機によれば、上記請求項３に記載の発明の効果に加えて、第２回動枠（３６ｂ）が第１回動枠（３６ａ）から突出する量を、前側より後側を大きくしたことにより、積載した苗箱（３８）を作業者に近づけることができるので、苗が取り出しやすくなり、作業能率が向上する。 According to the transplanting machine of the fourth aspect, in addition to the effect of the invention of the third aspect , the amount by which the second rotating frame (36b) projects from the first rotating frame (36a) is set from the front side. By enlarging the rear side, the loaded seedling box (38) can be brought closer to the worker, so that the seedlings can be taken out easily and the working efficiency is improved .

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上記請求項１から請求項５に記載の発明の効果に加えて、第１の関連発明によれば、苗載せ支柱（１０１）を上下反転させることにより、苗箱（３８）の下部側を供給装置（６）の中心に近付けることができるので、苗箱（３８）が供給装置（６）の苗の投入部を覆うことがなく、作業能率が向上すると共に、苗の投入タイミングが乱れることが防止される。
また、苗載せ台（１００）と供給装置（６）を共に回転させることにより、複数の苗箱（３８）を代わる代わる作業者側に向けることができるので、苗の消費による機体の重量バランスが乱れにくく、走行姿勢や植付精度が安定する。 According to the first related invention, in addition to the effects of the inventions according to claims 1 to 5, the lower part of the seedling box (38) is supplied by vertically inverting the seedling placing column (101). Since it can be brought close to the center of the device (6), the seedling box (38) does not cover the seedling input part of the supply device (6), the work efficiency is improved, and the seedling input timing is disturbed. To be prevented.
Further, by rotating the seedling placing table (100) and the supply device (6) together, the plurality of seedling boxes (38) can be turned to the alternate worker side, so that the weight balance of the machine body due to the consumption of seedlings can be improved. Less likely to disturb, stable running posture and planting accuracy.

移植機の側面図Side view of transplanter 移植機の平面図Top view of transplanter 供給装置の各構成部品を説明するための分解斜視図Exploded perspective view for explaining each component of the supply device スリーブの斜視図Perspective view of sleeve スリーブの外面に識別標識を設けた場合のスリーブの斜視図A perspective view of the sleeve when an identification mark is provided on the outer surface of the sleeve スリーブの形状を変えた場合のスリーブの斜視図Perspective view of the sleeve when changing the shape of the sleeve 載置台と回動苗枠を示す側面図Side view showing mounting table and rotating seedling frame 載置台と回動苗枠を示す平面図Plan view showing a mounting table and a rotating seedling frame （ａ）覆土鎮圧輪を示す要部断面図、（ｂ）覆土鎮圧輪を示す要部側面図(A) A cross-sectional view of a main part showing a soil-covering wheel, (b) A side view of a main part showing a soil-covering wheel （ａ）覆土鎮圧輪の組み付けを示す要部斜視図、（ｂ）防土プレートを取り付けるときの取付部材を示す要部斜視図(A) A perspective view of a main part showing an assembly of a soil covering wheel, and (b) A perspective view of a main part showing a mounting member when a soil protection plate is mounted. 防土プレートの裏面を示す要部斜視図Main part perspective view showing the back surface of the soil-proof plate 日除けカバーを備える載置台と回動苗枠を示す側面図Side view showing a mounting table with a sunshade cover and a rotating seedling frame 日除けカバーを備える載置台と回動苗枠を示す平面図A plan view showing a mounting table provided with a sunshade cover and a rotating seedling frame. 散水機能を設けた載置台と回動苗枠を備える移植機の側面図Side view of a transplanter equipped with a mounting table with a watering function and a rotating seedling frame 散水機能を設けた載置台と回動苗枠を備える移植機の平面図Plan view of a transplanter equipped with a mounting table provided with a watering function and a rotating seedling frame 散水ホースの保持クリップを設けた移植機の側面図Side view of transplanter with holding clips for watering hose 散水ホースの保持クリップを設けた移植機の平面図Top view of transplanter with holding clips for watering hose 苗箱の積込補助ローラを備える載置台と回動苗枠を示す平面図The top view which shows the mounting stand provided with the loading auxiliary roller of a seedling box, and a rotating seedling frame. 苗箱の積込補助ローラを備える載置台と回動苗枠を示す側面図Side view showing a mounting table provided with a loading auxiliary roller for a seedling box and a rotating seedling frame （ａ）作業高さ調節機構を備える載置台を示す要部背面図、（ｂ）作業高さ調節機構で載置台の左右一側を左右他側よりも上方に位置させた状態を示す要部背面図(A) A rear view of an essential part showing a mounting table having a working height adjusting mechanism, (b) An essential part showing a state where one side of the mounting table is positioned above the other side of the mounting table by the working height adjusting mechanism. Rear view 空箱置きフックを備える載置台を示す要部背面図Rear view of essential parts showing a mounting table provided with an empty box mounting hook 供給装置に装着する回転苗枠を示す要部斜視図Perspective view of a main part showing a rotary seedling frame to be attached to the supply device （ａ）供給装置と回転苗枠の間にスペーサロッドを設ける構成例を示す要部斜視図、（ｂ）スペーサロッドを示す正面図(A) A perspective view of a main part showing a configuration example in which a spacer rod is provided between a supply device and a rotary seedling frame, (b) a front view showing the spacer rod 作業高さの摺動調節機構を備える回転苗枠を示す要部斜視図Perspective view of essential parts showing a rotary seedling frame provided with a work height sliding adjustment mechanism 回転苗枠を上下反転させた状態を示す要部斜視図Perspective view of essential parts showing a state where the rotary seedling frame is turned upside down

以下、図面に基づき、本発明の好ましい実施の形態について説明する。 Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.

図１及び図２には、本実施形態の移植機の側面図と平面図を示す。この移植機の前進方向に向かって左右方向をそれぞれ左、右といい、前進方向と後進方向をそれぞれ前、後という。 1 and 2 show a side view and a plan view of the transplanter of the present embodiment. The left and right directions are referred to as left and right, respectively, and the forward and backward directions are referred to as front and rear, respectively, in the forward direction of the transplanter.

この移植機１は、前部にエンジン２及びミッションケース３と走行車輪としての左右一対の前輪４及び後輪５と、後部に植付装置７、供給装置６、鎮圧輪８及び操縦ハンドル９とを備えて構成されている。 This transplanter 1 has an engine 2, a transmission case 3, a pair of left and right front wheels 4 and rear wheels 5 as traveling wheels at the front, and a planting device 7, a supply device 6, a compression wheel 8 and a steering wheel 9 at the rear. Is configured.

この移植機１は、機体が圃場内の畝Ｕをまたぐように、前輪４及び後輪５が畝間を走行し、畝の上面の左右幅方向における中央位置に植付装置７により移植対象物を植え付けていくようになっている。 In this transplanter 1, the front wheels 4 and the rear wheels 5 travel between the ridges so that the body crosses the ridges U in the field, and the transplanting device 7 is used to place an object to be transplanted at the center position in the left-right width direction on the upper surface of the ridges. It is designed to be planted.

前記苗植付装置７が苗を植え付けるときは、土壌に突き刺さって進入し、苗を開放すべく開くので、苗の植付部分は、土が押し上げられることになる。これにより、植え付けられた苗の周囲には隙間ができると共に、周囲の土は解されているので、このままでは苗が土に保持されず、風等の影響で倒れて、抜けてしまうことがある。 When the seedling planting device 7 is planting seedlings, it penetrates into the soil and enters to open the seedlings, so that the seedlings are pushed up by the soil. As a result, a gap is created around the planted seedlings and the surrounding soil is unraveled, so the seedlings may not be retained in the soil as they are, and may fall due to the influence of the wind or the like and fall out. ..

これを防止すべく、植え付けられた苗の周囲に押し上げられた土を上方から苗に寄せると共に、軽く押し固めるための左右一対の覆土鎮圧輪８，８を、圃場面との接地で回転可能に設ける。 In order to prevent this, the soil pushed up around the planted seedlings is brought to the seedlings from above, and a pair of left and right cover soil suppression wheels 8 and 8 for lightly compacting can be rotated by contact with the field scene. Set up.

該左右一対の覆土鎮圧輪８，８はアルミ合金等の軽金属で構成する。これにより、塩化ビニル等の合成樹脂で構成するものよりも耐久性が向上すると共に、重量が多少なりとも重くなるので、土をよりしっかりと押し固めて、苗の倒伏を防止できる。 The pair of left and right cover soil suppression wheels 8 and 8 are made of a light metal such as an aluminum alloy. As a result, the durability is improved and the weight becomes heavier than that made of a synthetic resin such as vinyl chloride, so that the soil can be pressed more firmly and the lodging of the seedlings can be prevented.

前記覆土鎮圧輪８は、機体内側部から機体外側部に向かうほど小径になる輪体であり、機体外側の中央部に鎮圧回転軸８０を差し込む軸孔８１を形成し、該軸孔８１の外周を円柱状のボス８２とする。そして、該ハブ８２から円周方向の９０度毎にリブ８３を外周縁に向けて形成し、強度を向上させる。該リブ８３は、前記ボス８２の左右幅より狭くする。 The soil-covering wheel 8 is a wheel body whose diameter decreases from the inner side of the machine body toward the outer side of the machine body. A shaft hole 81 is formed in the central part on the outer side of the machine body, and a compression rotation shaft 80 is formed therein. Is a cylindrical boss 82. Then, ribs 83 are formed from the hub 82 toward the outer peripheral edge at every 90 degrees in the circumferential direction to improve the strength. The rib 83 is narrower than the lateral width of the boss 82.

そして、機体外側には、覆土鎮圧輪８の内部に土の進入を防止する円形の防土プレート８４を設け、覆土鎮圧時に土が入り込むことを防止する。 On the outside of the machine body, a circular soil-proof plate 84 for preventing soil from entering is provided inside the soil-covering wheel 8 to prevent soil from entering during soil-covering.

これにより、覆土鎮圧輪８の空間部に土が溜まり、鎮圧荷重が大きくなることを防止できるので、苗の周囲の土が固められすぎて、苗の生育に悪影響が出ることが防止される。 As a result, it is possible to prevent soil from accumulating in the space portion of the cover soil compaction wheel 8 and increasing the compaction load. Therefore, it is possible to prevent the soil around the seedling from being hardened too much and adversely affecting the growth of the seedling.

前記防土プレート８４は、中心部に前記鎮圧回転軸８０を差し込む軸差込孔８５を形成し、該取付穴８５の取付時における上下には、防土プレート８４を覆土鎮圧輪８に取り付けるタイバンド等の取付部材８６を取り付けるための取付孔８７，８７を各々形成する。
なお、該取付部材８６は覆土鎮圧輪８の圃場面に接触しない側に固定部を位置させることで、固定部が圃場面と接触して摩耗し、破損することが防止される。 The soil protection plate 84 has a shaft insertion hole 85 formed at the center thereof into which the compression rotation shaft 80 is inserted, and a tie for attaching the soil protection plate 84 to the soil suppression wheel 8 at the upper and lower sides when the mounting hole 85 is mounted. Mounting holes 87, 87 for mounting a mounting member 86 such as a band are formed respectively.
By disposing the fixing portion of the attachment member 86 on the side of the soil covering wheel 8 that does not contact the field scene, the fixing section is prevented from coming into contact with the field scene and being worn and damaged.

また、前記防土プレート８４のうち、圃場面に接触しない側（裏面）には、複数の前記リブ８３と噛み合って防土プレート８４の回転を防止する組付凸部８８を形成する。 Further, on the side (back surface) of the soil-proof plate 84 that does not come into contact with the field scene, an assembling convex portion 88 that meshes with the plurality of ribs 83 to prevent the soil-proof plate 84 from rotating is formed.

これにより、取付部材８６が破損して防土プレート８４の固定が緩んでも、防土プレート８４が覆土鎮圧輪８から離れ、独立して回転することを防止できるので、覆土鎮圧輪８内に土が溜まることが防止される。 As a result, even if the attachment member 86 is damaged and the soil-proof plate 84 is loosely fixed, it is possible to prevent the soil-proof plate 84 from separating from the soil-covering compaction wheel 8 and rotating independently. Are prevented from accumulating.

そして、前記鎮圧回動軸８０は、鎮圧取付アーム８５に固着され、機体内側に向かって突出している。該鎮圧取付アーム８５の下部には、前記覆土鎮圧輪８の表面に付着した土を擦り落とすスクレーパ８９を設ける。このとき、該スクレーパ８９を鎮圧取付アーム８５の下部に収めていると、土が溜まった際に鎮圧取付アーム８５の下部に土が溜まってしまい、除去作業に余分な労力を費やす必要が生じる。 The compression turning shaft 80 is fixed to the compression mounting arm 85 and projects toward the inside of the machine body. A scraper 89 for scraping off the soil adhering to the surface of the soil-covering wheel 8 is provided at the lower part of the pressure-suppressing mounting arm 85. At this time, if the scraper 89 is housed in the lower portion of the compression mounting arm 85, when the soil is accumulated, the soil is accumulated in the lower portion of the compression mounting arm 85, and it is necessary to spend extra labor for the removal work.

これを防止すべく、鎮圧取付アーム８５の機体外側の角部に土抜切欠部８５ａを形成し、スクレーパ８９が機体外側に寄せた土が土抜切欠部８５ａから抜け出て溜まらない構成とする。 In order to prevent this, a soil removal notch 85a is formed at a corner of the pressure suppression mounting arm 85 on the outer side of the fuselage so that soil scraped by the scraper 89 toward the outer side of the fuselage does not escape from the soil removal notch 85a and collect.

これにより、土の詰まりが生じにくく、除去作業に要する作業時間と労力が軽減される。 As a result, clogging of soil is less likely to occur, and the work time and labor required for the removal work are reduced.

前記ミッションケース３の左右端には該ミッションケース３に対して回動可能な走行エクステンションケース１０を左右それぞれ設け、左右の走行エクステンションケース１０のそれぞれの端部に走行チェーンケース１１を取り付けている。したがって、エンジン２から入力されるミッションケース３内の動力を走行チェーンケース１１内に伝動する構成となっている。 At the left and right ends of the mission case 3, traveling extension cases 10 which are rotatable with respect to the mission case 3 are provided respectively on the left and right sides, and traveling chain cases 11 are attached to the respective end portions of the left and right traveling extension cases 10. Therefore, the power in the mission case 3 input from the engine 2 is transmitted to the traveling chain case 11.

走行チェーンケース１１の回動先端部の左右外側には、走行車輪である左右一対の後輪５をそれぞれ取り付け、この左右一対の後輪５の駆動により機体が走行するようになっている。したがって、ミッションケース３は、走行車輪としての後輪５に伝動する伝動装置となっている。 A pair of left and right rear wheels 5, which are traveling wheels, are attached to the left and right outer sides of the rotating tip of the traveling chain case 11, and the vehicle body is driven by driving the pair of left and right rear wheels 5. Therefore, the mission case 3 is a transmission device that is transmitted to the rear wheels 5 as traveling wheels.

一方、エンジン載置台の下部には左右方向に延びる前輪支持フレーム１２を前後方向のローリング軸１３（図１参照）回りに回動可能に設け、この前輪支持フレーム１２の左右両端部に前輪４を取り付けている。 On the other hand, a front wheel support frame 12 extending in the left-right direction is provided on the lower part of the engine mounting table so as to be rotatable around a rolling shaft 13 (see FIG. 1) in the front-rear direction, and front wheels 4 are provided at both left and right ends of the front wheel support frame 12. It is attached.

また、ミッションケース３の後端の左右方向に配置された横フレーム１４の後部には、機体の左右方向右寄りの位置に延びる主フレーム１５を設けている。該主フレーム１５の後端部には操縦ハンドル９を設け、この操縦ハンドル９が主フレーム１５及び、横フレーム１４を介してミッションケース３に支持されている。 Further, at the rear of the lateral frame 14 arranged in the left-right direction at the rear end of the mission case 3, there is provided a main frame 15 extending to the right side in the left-right direction of the machine body. A steering handle 9 is provided at the rear end of the main frame 15, and the steering handle 9 is supported by the mission case 3 via the main frame 15 and the lateral frame 14.

また、ミッションケース３の後部で左右方向の中央には、油圧昇降シリンダ１６を設けている。この油圧昇降シリンダ１６は、ミッションケース３に取り付けられた油圧切替バルブ部１７に固着して設けられ、ミッションケース３に取り付けられた油圧ポンプからの油圧を切り替える油圧切替バルブ部１７に備えられた昇降操作バルブを操作することにより作動する。 A hydraulic lift cylinder 16 is provided at the rear center of the transmission case 3 in the left-right direction. The hydraulic lifting cylinder 16 is fixedly provided to the hydraulic switching valve unit 17 mounted on the mission case 3, and is mounted on the hydraulic switching valve unit 17 switching the hydraulic pressure from the hydraulic pump mounted on the transmission case 3. It operates by operating the operating valve.

また、油圧昇降シリンダ１６のシリンダロッド端には左右に延びる横杆１９を設け、この横杆１９の左右端部にそれぞれ後輪昇降ロッド２０，２１を枢着し該ロッド２０，２１の他端をそれぞれの走行エクステンションケース１０に取り付けられた上側アーム１０ａに枢着して、横杆１９と走行エクステンションケース１０とが連結された構成となっている。 Further, a horizontal rod 19 extending to the left and right is provided at the cylinder rod end of the hydraulic lifting cylinder 16, and rear wheel lifting rods 20 and 21 are pivotally attached to the left and right ends of the horizontal rod 19, respectively, and the other ends of the rods 20 and 21. Is pivotally attached to the upper arm 10a attached to each traveling extension case 10, and the horizontal rod 19 and the traveling extension case 10 are connected to each other.

したがって、油圧昇降シリンダ１６の伸縮により横杆１９、後輪昇降ロッド２０，２１を介してミッションケース３の左右の出力軸回りに走行チェーンケース１１が回動され、該走行チェーンケース１１の回動により後輪５が上下して機体が昇降する構成となっている。 Therefore, the traveling chain case 11 is rotated around the left and right output shafts of the transmission case 3 through the horizontal rod 19 and the rear wheel raising and lowering rods 20 and 21 by the expansion and contraction of the hydraulic lifting cylinder 16, and the traveling chain case 11 is rotated. Thus, the rear wheel 5 moves up and down, and the machine body moves up and down.

また、左側の後輪昇降ロッド２０が伸縮するように該ロッド２０の中途部に油圧ポンプからの油圧により作動する水平用油圧シリンダ２２を設けており、該水平用油圧シリンダ２２の伸縮により右側の後輪５の上下位置に対して左側の後輪５を上下させて、畝の谷部の凹凸に関係なく機体を左右水平に維持できるようになっている。 In addition, a horizontal hydraulic cylinder 22 that is operated by hydraulic pressure from a hydraulic pump is provided in the middle of the left rear wheel lifting rod 20 so that the left rear wheel lifting rod 20 expands and contracts. The left rear wheel 5 is moved up and down with respect to the vertical position of the rear wheel 5 so that the body can be maintained horizontally regardless of the unevenness of the valley portion of the ridge.

なお、ミッションケース３の右側には振り子式の左右傾斜センサ２３が設けられて、この左右傾斜センサ２３の検出により油圧切替バルブ部１７に備えられた水平操作バルブを介して水平用油圧シリンダ２２を作動させ機体を左右水平に維持する構成となっている。 A pendulum type left/right tilt sensor 23 is provided on the right side of the mission case 3, and the horizontal hydraulic cylinder 22 is moved through a horizontal operation valve provided in the hydraulic pressure switching valve unit 17 by the detection of the left/right tilt sensor 23. It is configured to operate and maintain the aircraft horizontally to the left and right.

本実施の形態の植付装置７は、野菜苗等の移植対象物を１個ずつ圃場の畝部に植付けるべく、ミッションケース３内からの動力がミッションケース３の後側に設けた植付伝動ケース２４と、その植付伝動ケース２４に取り付けられた植付装置駆動ケース２５ａを介して伝達され作動するようになっている。 The planting device 7 according to the present embodiment is a planting device in which power from inside the mission case 3 is provided on the rear side of the mission case 3 in order to plant one transplant target object such as a vegetable seedling in the ridge of the field. The transmission case 24 and the planting device drive case 25a attached to the planting transmission case 24 are transmitted to operate.

植付装置７は、先端が尖ったカップ状の植付具７２と該植付具７２を昇降させるべく作動するリンク機構７５などで構成される。植付具７２の先端は、植付具７２の昇降動作によって、図１に示すように、概ね楕円形の軌跡Ｂを描いて図中の矢印方向に繰り返し作動する。 The planting device 7 includes a cup-shaped planting tool 72 having a sharp tip, a link mechanism 75 that operates to move the planting tool 72 up and down, and the like. As shown in FIG. 1, the distal end of the planting tool 72 draws a substantially elliptical locus B as shown in FIG. 1 and repeatedly operates in the direction of the arrow in the figure.

そして、前記供給装置６の中心である供給回転軸６６ｆの上部に、複数の苗箱３８を上下方向が長手方向となる傾斜姿勢で支持させることが可能な、回転苗枠１００を設ける。 Then, a rotary seedling frame 100 capable of supporting a plurality of seedling boxes 38 in an inclined posture in which the vertical direction is the longitudinal direction is provided on the upper part of the supply rotation shaft 66f which is the center of the supply device 6.

該回転苗枠１００は、図２２に示すとおり、前記供給回転軸６６ｆの上方に、供給回転軸６６ｆとは独立して回転可能な、即ち供給装置６の駆動回転に関係なく回転可能な回転軸１０１を設け、該回転軸１０１の円周上に所定間隔ごとに苗箱３８を傾斜姿勢で支持する傾斜支持アーム１０２…を設ける。この所定間隔は、図２２では１２０度とし、３枚の苗箱３８を支持可能としているが、９０度毎に配置して４枚の苗箱３８を支持可能としてもよい。 As shown in FIG. 22, the rotary seedling frame 100 is rotatable above the supply rotary shaft 66f independently of the supply rotary shaft 66f, that is, rotatable regardless of the drive rotation of the supply device 6. 101 is provided, and inclined support arms 102 for supporting the seedling box 38 in an inclined posture are provided on the circumference of the rotary shaft 101 at predetermined intervals. This predetermined interval is 120 degrees in FIG. 22, and three seedling boxes 38 can be supported, but it is also possible to arrange every 90 degrees to support four seedling boxes 38.

該傾斜支持アーム１０２…は、苗箱３８を機体下側ほど供給装置６の外周縁部に近付く傾斜姿勢とすべく、複数の傾斜支持構成体１０３，１０４，１０５…を上下方向に間隔を空けて配置して構成する。この傾斜支持構成体は、上側に位置する上側構成体１０３が最も短く、次に中段構成体１０４が短く、下側構成体１０５が最も長くなる。これらの長さは、苗箱３８が傾斜姿勢で支えられ得る長さである必要があるので、極端な差は設けないものとする。 The tilted support arms 102 are provided with a plurality of tilted support structures 103, 104, 105, which are vertically spaced from each other so that the seedling box 38 is tilted toward the outer peripheral edge of the feeder 6 toward the lower side of the machine body. Place and configure. In this tilted support structure, the upper structure 103 located on the upper side has the shortest length, the middle structure 104 has the shortest length, and the lower structure 105 has the longest length. These lengths need to be such that the seedling box 38 can be supported in a tilted posture, so no extreme difference is provided.

また、苗箱３８の下端側が供給装置６の外周縁部よりも外側に出ていると、供給カップ６２…の上方の開口部を覆うので、苗が投入しにくくなる。これを防止すべく、複数の傾斜支持構成体１０３，１０４，１０５…の長さは、苗箱３８の下端部が供給装置６の外周よりも内側に位置する傾斜角度となる長さとする。 Further, when the lower end side of the seedling box 38 is outside the outer peripheral edge portion of the supply device 6, the opening portion above the supply cups 62 is covered, which makes it difficult to insert seedlings. In order to prevent this, the lengths of the plurality of inclined support structures 103, 104, 105... Are set to have an inclination angle such that the lower end portion of the seedling box 38 is located inside the outer periphery of the supply device 6.

また、複数の傾斜支持構成体１０３，１０４，１０５…のうち、下側構成体１０５は、前記回転軸１０１の下端部付近からある程度上方に離間させて設け、苗箱３８が供給カップ６２の開口部を塞ぐことを防止し、苗の投入作業を妨げない構成とする。 Further, among the plurality of inclined support structures 103, 104, 105,..., The lower structure 105 is provided at a certain distance above the lower end portion of the rotating shaft 101, and the seedling box 38 is opened in the supply cup 62. It is designed to prevent the parts from being blocked and not interfere with the seedling input work.

そして、前記回転軸１０１は、前記供給回転軸６６ｆの上部に設ける、下半分が供給回転軸６６ｆと共に回転し、上半分は回転しない軸受部材１０６に回転可能に装着し、作業者が手で回転させられる構成とする。 The rotary shaft 101 is rotatably mounted on a bearing member 106 provided on the upper side of the supply rotary shaft 66f, the lower half of which rotates with the supply rotary shaft 66f and the upper half of which does not rotate. It will be configured to be allowed.

上記構成の回転苗枠１００により、作業者は傾斜姿勢の苗箱３８から苗を取り出すことができるので、苗が取り出しやすく作業能率が向上すると共に、苗が苗箱３８から落下しにくいので、落下した苗を拾い集める必要が無くなる。 With the rotating seedling frame 100 having the above-mentioned configuration, the operator can take out the seedlings from the tilted posture seedling box 38, so that the seedlings can be easily taken out and the working efficiency is improved, and the seedlings are less likely to drop from the seedling box 38. There is no need to collect picked seedlings.

また、供給装置６の上方に回転苗枠１００が設けられることにより、供給装置６の側方に立つ作業者が苗を最小限の動作で供給装置６に投入することができるので、作業能率が向上すると共に、苗を供給カップ６２に投入するタイミングが遅れず、苗が植え付けられない欠株の発生が防止される。 Further, since the rotary seedling frame 100 is provided above the supply device 6, a worker standing on the side of the supply device 6 can put the seedlings into the supply device 6 with a minimum operation, so that the work efficiency is improved. At the same time, the timing of introducing the seedlings into the supply cup 62 will not be delayed, and the occurrence of stockouts where seedlings cannot be planted is prevented.

なお、複数の傾斜支持構成体１０３，１０４，１０５…は、径の異なる二つの棒材で伸縮可能に構成し、回転軸１０１からの突出量を変更可能に構成すると、作業者が苗箱３８の傾斜角度を苗を取り易い角度にすることで、作業能率を一層向上させたり、苗の落下をより確実に防止したりすることができる。 In addition, when the plurality of inclined support structures 103, 104, 105,... Are configured to be expandable and contractable with two rods having different diameters, and the amount of protrusion from the rotary shaft 101 can be changed, the operator can raise the seedling box 38. By setting the inclination angle of 3 to an angle that makes it easy to take seedlings, it is possible to further improve the work efficiency and more reliably prevent the seedlings from falling.

さらに、苗箱３８の角度を各々変更することもできるので、苗の供給を行う苗箱３８とその他の苗箱３８の角度を異ならせ、苗の落下の防止と苗の取り易さを両立させることも可能である。 Further, since the angles of the seedling boxes 38 can be changed respectively, the angles of the seedling boxes 38 for supplying seedlings and the other seedling boxes 38 are made different to prevent the drop of the seedlings and the ease of taking the seedlings. It is also possible.

また、回転軸１０１を回転可能に設けたことにより、一つの苗箱３８の苗を使い切った後は、回転軸１０１を回転させて別の苗箱３８を作業者の近くに位置させることができるので、苗箱３８の移動に要する作業が非常に簡略化され、作業能率の向上や作業時間の短縮が図られる。 Further, since the rotary shaft 101 is rotatably provided, after the seedlings in one seedling box 38 are used up, the rotary shaft 101 can be rotated to locate another seedling box 38 near the worker. Therefore, the work required to move the seedling box 38 is greatly simplified, and the work efficiency is improved and the work time is shortened.

前記回転苗枠１００は、作業者によっては位置が低く、苗箱３８から苗を取り出しにくい可能性がある。このような状況に備えて、図２３（ａ）（ｂ）に示すとおり、前記回転軸１０１の下部と軸受部材１０６の間にスペーサロッド１０７を追加し、長さを調節可能とするとよい。 The position of the rotary seedling frame 100 is low depending on the operator, and it may be difficult to remove the seedlings from the seedling box 38. In preparation for such a situation, as shown in FIGS. 23A and 23B, a spacer rod 107 may be added between the lower portion of the rotary shaft 101 and the bearing member 106 so that the length can be adjusted.

該スペーサロッド１０７は、図２３（ｂ）に示すとおり、上部側に被差込孔１０７ａを形成し、下部側に差込突起１０７ｂを形成する。該差込突起１０７ｂの径は、前記回転軸１０７の差込口（図示省略）と略同径であると共に、被差込孔１０７ａとも略同径とする。また、回転軸１０７の差込口及び被差込孔１０７ａの径は、供給回転軸６６ｆの上端の差込突起部と略同径とする。 As shown in FIG. 23B, the spacer rod 107 has an insertion hole 107a formed on the upper side and an insertion protrusion 107b formed on the lower side. The diameter of the insertion protrusion 107b is substantially the same as the diameter of the insertion port (not shown) of the rotary shaft 107 and the insertion hole 107a. The diameter of the insertion port of the rotation shaft 107 and the insertion hole 107a is substantially the same as the diameter of the insertion protrusion of the upper end of the supply rotation shaft 66f.

これにより、回転軸１０１と供給回転軸６６ｆの間にスペーサロッド１０７を簡単に設けることができるので、作業高さの調節作業の能率が向上する。特に、複数のスペーサロッド１０７を上下に配置するときに能率が向上する。 Accordingly, since the spacer rod 107 can be easily provided between the rotary shaft 101 and the supply rotary shaft 66f, the efficiency of the work for adjusting the working height is improved. In particular, the efficiency is improved when the plurality of spacer rods 107 are arranged vertically.

また、スペーサロッド１０７同士を連結可能としたことにより、スペーサロッド１０７の上下長さを短くし、作業高さの微調整が可能であると共に、スペーサロッド１０７の一本ごとの強度を高めることができる。 Further, since the spacer rods 107 can be connected to each other, the vertical length of the spacer rods 107 can be shortened, the working height can be finely adjusted, and the strength of each spacer rod 107 can be increased. it can.

あるいは、回転軸１０１を上下方向に長く構成しておき、この回転軸１０１に沿って上下動可能な摺動ボス１０８を設け、該摺動ボス１０８に傾斜支持構成体１０３，１０４，１０５…を設けてもよい。 Alternatively, the rotary shaft 101 is configured to be long in the vertical direction, a slide boss 108 that can move up and down is provided along the rotary shaft 101, and the tilt bosses 103, 104, 105... Are attached to the slide boss 108. It may be provided.

これにより、摺動ボス１０８の上下動による苗箱３８を傾斜姿勢で支持する位置の上下調節と、傾斜支持構成体１０３，１０４，１０５…の長さ調節による傾斜角度調節ができるので、作業者の身長等の条件に合わせた調節が可能になり、作業能率が向上する。 As a result, it is possible to vertically adjust the position of supporting the seedling box 38 in an inclined posture by the vertical movement of the sliding boss 108 and to adjust the inclination angle by adjusting the lengths of the inclined support structures 103, 104, 105. It becomes possible to adjust according to the height and other conditions of the, and the work efficiency is improved.

なお、前記摺動ボス１０８には、回転軸１０１に沿って摺動できなくするためのロックピン１０９を出し入れ可能に設け、該ロックピン１０９を作業者が解除位置に移動させないと上下摺動できない構成とすると、現在の作業高さが突然変化することが防止される。
なお、このロックピン１０９の操作は、例えば傘の開閉操作と同様の構造とすると、操作が簡単になる。 A lock pin 109 for preventing sliding along the rotating shaft 101 is provided on the sliding boss 108 so that the lock pin 109 cannot slide up and down unless an operator moves the lock pin 109 to a release position. With the configuration, the present working height is prevented from changing suddenly.
The operation of the lock pin 109 can be simplified if, for example, the same structure as the opening/closing operation of the umbrella is used.

なお、前記回転軸１０１の上端部は、下端部と同様に軸受部材１０６に差し込み可能に構成する。これにより、図２５に回転軸１０１を反転させると回転苗枠１００を上下逆に配置することができる。 The upper end portion of the rotary shaft 101 is configured to be insertable into the bearing member 106 like the lower end portion. Accordingly, when the rotary shaft 101 is reversed in FIG. 25, the rotary seedling frame 100 can be arranged upside down.

回転苗枠１００を上下逆に配置することにより、苗箱３８の上部は供給回転軸６６ｆに近い位置となり、供給装置６の供給カップ６２の上方を覆わなくなるので、苗の投入作業が妨げられないと共に、苗を投入すべき位置が見やすいので、作業能率の向上や、苗の投入損ないによる欠株の発生が防止される。 By arranging the rotary seedling frame 100 upside down, the upper part of the seedling box 38 is located closer to the supply rotation shaft 66f and the upper part of the supply cup 62 of the supply device 6 is not covered, so that the seedling insertion work is not hindered. At the same time, since the position where the seedlings should be put is easy to see, it is possible to improve the work efficiency and prevent the occurrence of stock-out due to the loss of the seedlings.

なお、上記の構成では、回転苗枠１００は供給装置６の供給回転軸６６ｆと共に回転しないが、前記軸受部材１０６を上下別々に回転可能とするか、あるいは共に供給回転軸６６ｆにより回転することを選択するシフタピン１１０により切替可能とし、回転苗枠１００を供給装置６と共に同じ方向に回転させる構成としてもよい。 In the above configuration, the rotary seedling frame 100 does not rotate together with the supply rotation shaft 66f of the supply device 6, but the bearing member 106 can be rotated separately from the top or bottom, or both can be rotated by the supply rotation shaft 66f. The configuration may be such that it can be switched by the selected shifter pin 110, and the rotary seedling frame 100 is rotated together with the supply device 6 in the same direction.

これにより、作業者は苗の供給時に一番近い苗箱３８から苗を取り出すことができるので、一つの苗箱３８の苗を集中的に取り出すのではなく、複数の苗箱３８からほぼ順番に取っていくことになるので、苗箱３８の重量の偏りが生じにくく、機体の重量バランスが崩れにくい。従って、植付装置７の植付姿勢が乱れにくく、苗の植付姿勢が安定し、苗の生育が良好になる。 As a result, the worker can take out the seedlings from the nearest seedling box 38 when supplying the seedlings, so that instead of intensively taking out the seedlings from one seedling box 38, the seedlings can be sequentially picked up from a plurality of seedling boxes 38. Since the weight of the seedling box 38 is less likely to be biased, the weight balance of the machine body is less likely to be lost. Therefore, the planting posture of the planting device 7 is less likely to be disturbed, the planting posture of the seedlings is stable, and the seedlings grow well.

そして、前記供給装置６は、植付装置７の上方位置で苗を受けて周回軌道６４上を移送する８個の供給カップ６２…を備え、回転駆動機構６６の回転動力によって所定速度で回転作動される。なお、この回転作動は植付装置７の昇降動作と対応させており、すなわち、供給装置６から苗が落下するタイミングを植付装置７が最も上昇した位置にある時に同期させている。 The supply device 6 is provided with eight supply cups 62... Which receive seedlings above the planting device 7 and transfer them on the circular orbit 64, and are rotated at a predetermined speed by the rotation power of the rotation drive mechanism 66. To be done. This rotation operation corresponds to the raising/lowering operation of the planting device 7, that is, the timing at which the seedlings drop from the supply device 6 is synchronized when the planting device 7 is at the most raised position.

図４には、供給装置６の各構成部品を説明するための分解斜視図を示す。 FIG. 4 is an exploded perspective view for explaining each component of the supply device 6.

供給装置６は、植付装置７の上方に設けられた、上端と下端に開口部６２ａを有する供給カップ６２を８つ貫通させてループ状に配置した回転可能な回転テーブル６１と、その下側に配置されて且つ移植機１の機体側に固定配置された支持板２６と、回転テーブル６１を反時計回りに回転させるための回転駆動機構６６と、植付装置７の受け継ぎ位置Ｇに移動してきた供給カップ６２の中に作業者の指などが誤って入らないようにするための安全カバー４０等を備えている。 The supply device 6 includes a rotatable rotary table 61 provided above the planting device 7 and arranged in a loop shape by penetrating eight supply cups 62 each having an opening 62a at an upper end and a lower end, and a lower side thereof. The support plate 26 fixed to the body side of the transplanter 1, the rotary drive mechanism 66 for rotating the rotary table 61 counterclockwise, and the transfer position G of the planting device 7. The supply cup 62 is provided with a safety cover 40 and the like for preventing an operator's finger or the like from accidentally entering.

回転テーブル６１は、外周縁部６１ａが下方に曲げられた盆状部材であって、その円形平面部（主面部）６１ｂの外周寄りに等間隔に開けられた８つの貫通孔に、両端が開放された円筒状の供給カップ６２がそれぞれ貫通して設けられている。また、回転テーブル６１の中央部には、回転駆動機構６６からの回転力により回転テーブル６１を反時計回りに回転するための回転軸６６ｆが固定配置されている。 The rotary table 61 is a tray-shaped member whose outer peripheral edge portion 61a is bent downward, and its both ends are open to eight through-holes formed at equal intervals near the outer periphery of the circular flat surface portion (main surface portion) 61b. The cylindrical supply cups 62 are provided so as to penetrate therethrough. Further, a rotary shaft 66f for rotating the rotary table 61 counterclockwise by a rotational force from the rotary drive mechanism 66 is fixedly arranged at the center of the rotary table 61.

支持板２６は、植付装置７の受け継ぎ位置Ｇに開口部２７が設けられた円盤状の板部材であって、その外周部に安全カバー４０を固定するための出っ張り部２９を有し、供給カップ６２の直ぐ下側で、回転テーブル６１の円形平面部（主面部）６１ｂに平行であって、後述する支柱９３に溶接によって固定されている。支持板２６の更に下側には、回転駆動機構６６が設けられている。 The support plate 26 is a disk-shaped plate member having an opening 27 at the inheritance position G of the planting device 7, and has a protruding portion 29 for fixing the safety cover 40 on the outer peripheral portion thereof. Immediately below the cup 62, it is parallel to the circular flat surface portion (main surface portion) 61b of the rotary table 61 and is fixed by welding to a post 93 described later. A rotary drive mechanism 66 is provided below the support plate 26.

この支持板２６は、出っ張り部２９を除き、回転テーブル６１の直径より小さく、且つ、リング状に配置された８個の供給カップ６２の下端の開口の投影領域を包括できる直径の円盤状の板部材であり、その板部材の一部には、供給カップ６２の下端開口の直径より大きい円形状の開口部２７が、植付ホッパ部７２への受け継ぎ位置Ｇ、すなわち植付ホッパ部７２が上死点に位置する時の植付ホッパ部７２のロート状上部筒部７１の上方に対応する位置に１つ形成されている。 The support plate 26 is a disc-shaped plate having a diameter smaller than the diameter of the rotary table 61 except for the protruding portion 29 and capable of covering the projection area of the lower opening of the eight supply cups 62 arranged in a ring shape. A circular opening 27 having a diameter larger than the diameter of the lower end opening of the supply cup 62 is provided on a part of the plate member, and a position G inherited to the planting hopper part 72, that is, the planting hopper part 72 is located above. One is formed at a position corresponding to above the funnel-shaped upper cylinder part 71 of the planting hopper part 72 when it is located at the dead point.

また、支持板２６は、供給カップ６２の下端の縁部から所定の距離を隔てて、回転テーブル６１の主面に平行に配置されており、供給カップ６２に補給された苗が、開口部２７を除き、支持板２６と供給カップ６２の下端の縁部との隙間から落下することが無く、しかも、回転移動する供給カップ６２が、動作中に振動などしても、支持板２６にぶつかることがない程度の間隔が確保されている。 Further, the support plate 26 is arranged in parallel to the main surface of the rotary table 61 at a predetermined distance from the edge of the lower end of the supply cup 62, and the seedlings supplied to the supply cup 62 are opened by the opening 27. Except for the above, there is no drop from the gap between the support plate 26 and the edge of the lower end of the supply cup 62, and the rotating supply cup 62 does not collide with the support plate 26 even if it vibrates during operation. There is no gap between them.

ここで、支持板２６の出っ張り部２９は、開口部２７に近傍の外周側に所定寸法だけ突き出しており、安全カバー４０を締結部品４０ａ、４０ｂで固定するための２つの貫通孔２９ａが設けられている。安全カバー４０については、後述する。 Here, the protruding portion 29 of the support plate 26 projects to the outer peripheral side in the vicinity of the opening 27 by a predetermined dimension, and two through holes 29a for fixing the safety cover 40 with the fastening components 40a and 40b are provided. ing. The safety cover 40 will be described later.

支持板２６には、その上面に溜まったゴミなどを効果的に排出し、苗は落下しない程度の大きさのスリット状の長孔部３５が、半径方向に沿って形成されている。 On the support plate 26, slit-like long holes 35 are formed along the radial direction having a size such that dust and the like collected on the upper surface thereof are effectively discharged and seedlings do not drop.

一方、回転テーブル６１の裏面には、支持板２６に形成された長孔部３５からゴミを落とすための長方形状の硬質ゴム製のスクレーパ３６が固定配置されている。 On the other hand, on the back surface of the rotary table 61, a rectangular hard rubber scraper 36 is fixedly arranged for removing dust from the long holes 35 formed in the support plate 26.

また、支持板２６は、移植機１の機体から後方に向けて配置されている支柱９３により支持されると共に、その支持部において溶接固定されている。なお、後述する軸受け部材６６ｇの外周側面は、支柱９３の後方端９３ａに固定されている（図４参照）。 In addition, the support plate 26 is supported by columns 93 arranged rearward from the body of the transplanter 1, and is welded and fixed at the support portion. The outer peripheral side surface of the bearing member 66g described later is fixed to the rear end 93a of the support column 93 (see FIG. 4).

なお、上記構成によれば、供給カップ６２の下端は開放されており、すなわち蓋が無く、しかも支持板２６の裏面に支柱９３が直接固定されているので、供給カップ６２の下端の開口位置と、植付ホッパ部７２の上死点との距離がより短くできる。なお、供給カップ６２の底全面ではなく、底面の一部に開口部６２ａを設けても良い。 According to the above configuration, the lower end of the supply cup 62 is open, that is, since there is no lid and the column 93 is directly fixed to the back surface of the support plate 26, the opening position of the lower end of the supply cup 62 is The distance from the top dead center of the planted hopper 72 can be shortened. The opening 62a may be provided on a part of the bottom surface of the supply cup 62 instead of the entire bottom surface.

そして、回転駆動機構６６は回転テーブル駆動ケース２５ｂに一端が回転可能に接続され、回転方向変換ユニット６６ｂの入力側に他端が回転可能に接続された回転力伝達部材６６ｃと、回転方向変換ユニット６６ｂの入力側の回転軸に対して直交配置された出力側の回転軸６６ｄに固定された第１歯車６６ｅ１と、第１歯車６６ｅ１と噛み合って配置された第２歯車６６ｅ２とを備えている。第２歯車６６ｅ２は反時計方向に滑らかに回転する。 The rotary drive mechanism 66 has one end rotatably connected to the rotary table drive case 25b, and the other end rotatably connected to the input side of the rotation direction conversion unit 66b, and the rotation direction transmission unit 66c. The first gear 66e1 is fixed to the output-side rotary shaft 66d that is disposed orthogonal to the input-side rotary shaft of 66b, and the second gear 66e2 that is arranged to mesh with the first gear 66e1. The second gear 66e2 smoothly rotates counterclockwise.

また、回転方向変換ユニット６６ｂの上面には、回転方向変換ユニット固定用アングル６７が締結部品６７ａによって固定されている。更に、回転方向変換ユニット６６ｂは、回転方向変換ユニット固定用アングル６７を介して、支持板２６の裏面に固定されているユニット固定用アングル６８に締結部品６７ｂによって固定されている。 A rotation direction conversion unit fixing angle 67 is fixed to the upper surface of the rotation direction conversion unit 66b by a fastening component 67a. Further, the rotation direction changing unit 66b is fixed to the unit fixing angle 68 fixed to the back surface of the support plate 26 by the fastening component 67b via the rotation direction changing unit fixing angle 67.

また、軸受け部材６６ｇは、第２歯車６６ｅ２の回転軸６６ｆを回転可能に支持する軸受け部材であり、上述した通り、その外周側面の下端側において、支柱９３の後方端９３ａと固定されている。一方、軸受け部材６６ｇの上端側は、支持板２６の中心部に設けられた貫通孔２８を貫通しており、軸受け部材６６ｇから上方に飛び出している回転軸６６ｆが回転テーブル６１の中心部に固定されている。これにより、回転テーブル６１は、回転軸６６ｆを介して、軸受け部材６６ｇにより回転可能に支持されている。 The bearing member 66g is a bearing member that rotatably supports the rotating shaft 66f of the second gear 66e2, and is fixed to the rear end 93a of the support column 93 on the lower end side of the outer peripheral side surface thereof, as described above. On the other hand, the upper end side of the bearing member 66g penetrates the through hole 28 provided in the central portion of the support plate 26, and the rotary shaft 66f protruding upward from the bearing member 66g is fixed to the central portion of the rotary table 61. Has been done. As a result, the rotary table 61 is rotatably supported by the bearing member 66g via the rotary shaft 66f.

以上、説明した供給装置６において、茎部を有する比較的背が高くてやわらかい野菜苗を供給する場合は、供給カップ６２の上端からはみ出したり、倒れてしまったりして植付装置６の受け継ぎがうまく行われない場合がある。また、搬送中に苗がずれて根の部分が擦れて傷つく場合もある。 In the above-described supply device 6, when supplying a relatively tall and soft vegetable seedling having a stem portion, the planting device 6 can be inherited by protruding from the upper end of the supply cup 62 or falling down. It may not work well. In addition, the seedlings may be displaced during transportation and the root part may be scratched and damaged.

そこで、本実施形態の移植機によれば、供給カップ６２の内側に、供給カップ６２よりも細長く、底蓋６５ｂを備えたスリーブ６５を取り付けたことを特徴としている。スリーブとは袖を意味するが、移植機では、通常、野菜苗等の作物を入れる筒状の部材のことを言う。 Therefore, the transplanter according to the present embodiment is characterized in that the sleeve 65, which is slenderer than the supply cup 62 and has the bottom lid 65b, is attached inside the supply cup 62. The term “sleeve” means a sleeve, but in a transplanter, it usually means a tubular member into which crops such as vegetable seedlings are put.

そして、例えば、図４に示すように、スリーブ６５の本体部６５ａ（図５）は供給カップ６２の上下高さよりも背が高く、供給カップ６２よりも径が小さめであり、供給カップ６２に比べて全体的に細長い形状である。スリーブ６５の上方又は下方の径を供給カップ６２の開口部６２ａの径よりも大きくしたり、スリーブ６５と供給カップ６２との間に緩衝材を挟んだりすることで、スリーブ６５は供給カップ６２にはまり、供給カップ６２から落下することはない。また、外側が供給カップ６２に接し、内径の小さい、厚みのあるスリーブ６５としても良い。 Then, for example, as shown in FIG. 4, the main body portion 65 a (FIG. 5) of the sleeve 65 is taller than the vertical height of the supply cup 62 and has a smaller diameter than the supply cup 62. The overall shape is elongated. By making the diameter of the upper or lower side of the sleeve 65 larger than the diameter of the opening portion 62 a of the supply cup 62, or by sandwiching a cushioning material between the sleeve 65 and the supply cup 62, the sleeve 65 can be attached to the supply cup 62. It fits in and does not fall from the supply cup 62. Further, the outer side may be in contact with the supply cup 62, and the sleeve 65 having a small inner diameter and a large thickness may be used.

図５には、スリーブ６５の斜視図を示す。図５の右上には簡略平面図を示す。 FIG. 5 shows a perspective view of the sleeve 65. A simplified plan view is shown in the upper right of FIG.

スリーブ６５の本体部６５ａの外面に、供給カップ６２の内面に接するツバ部６５ｄを固着すると、ツバ部６５ｄが供給カップ６２の内面に接することで、供給カップ６２の内側に固定される。また、スリーブ６５の上方の径が供給カップ６２の下端部の径より小さくても、供給カップ６２の内壁にスリーブ６５のツバ部６５ｄが嵌合し、スリーブ６５はツバ部６５ｄにより供給カップ６２に引っかかっているため供給カップ６２から落下することはない。 When the brim portion 65d that contacts the inner surface of the supply cup 62 is fixed to the outer surface of the main body portion 65a of the sleeve 65, the brim portion 65d contacts the inner surface of the supply cup 62 and is fixed inside the supply cup 62. Even if the diameter of the upper portion of the sleeve 65 is smaller than the diameter of the lower end portion of the supply cup 62, the flange portion 65d of the sleeve 65 is fitted to the inner wall of the supply cup 62, and the sleeve 65 is attached to the supply cup 62 by the flange portion 65d. Since it is caught, it does not fall from the supply cup 62.

更に、スリーブ６５の本体部６５ａの下端部に底蓋６５ｂを設けていることから、比較的背が高くてやわらかい苗の場合でもスリーブ６５内で保持できるため、苗の根の部分を傷めることもない。 Further, since the bottom lid 65b is provided at the lower end of the main body portion 65a of the sleeve 65, even a relatively tall and soft seedling can be held in the sleeve 65, so that the root portion of the seedling may be damaged. Absent.

また、供給カップ６２が支持板２６上を移送されて受け継ぎ位置Ｇに設けた開口部２７を通過する際に、スリーブ６５の底蓋６５ｂが開くことで植付装置７への苗の受け継ぎもスムーズに行うことできる。スリーブ６５は径や高さの異なるものを複数種類、そろえておくと、苗の種類によって最適なものを使用できる。 Further, when the supply cup 62 is transported on the support plate 26 and passes through the opening 27 provided at the inheritance position G, the bottom lid 65b of the sleeve 65 is opened to smoothly inherit the seedlings to the planting device 7. Can be done. If a plurality of types of sleeves 65 having different diameters and heights are prepared, the optimal type can be used depending on the type of seedling.

このように、スリーブ６５の底蓋６５ｂは、受け継ぎ位置Ｇに設けた開口部２７において、移送方向の上手側に設けた支軸６５ｃ周りに下方に回動して開く構成である。すなわち、供給カップ６２が支持板２６上を移送されて開口部２７に達し、平面視でスリーブ６５の底蓋６５ｂ全面が開口部２７と重複した時に蓋６５ｂが開き、支軸６５ｃ部分が開口部２７を通過して支持板２６上にスリーブ６５の底蓋６５ｂが接すると、底蓋６５ｂが閉じる。 In this way, the bottom lid 65b of the sleeve 65 has a configuration in which, in the opening 27 provided at the inheritance position G, the bottom lid 65b pivots downward and opens around the support shaft 65c provided on the upper side in the transfer direction. That is, when the supply cup 62 is transported on the support plate 26 to reach the opening 27, and the entire bottom lid 65b of the sleeve 65 overlaps the opening 27 in plan view, the lid 65b is opened and the support shaft 65c is opened. When the bottom lid 65b of the sleeve 65 comes into contact with the support plate 26 after passing through 27, the bottom lid 65b is closed.

このように、供給カップ６２の移送方法と底蓋６５ｂの開閉方法によってスリーブ６５の底蓋６５ｂの取り付け位置が決まっている場合などは、底蓋６５ｂが適切に開閉するように、スリーブ６５を正しい向きで供給カップ６２に取り付ける必要がある。したがって、ツバ部６５ｄの形状や位置によっては供給カップ６２に取り付けるスリーブ６５の向きが容易に識別できる。例えば、スリーブ６５の本体部６５ａの外面に等間隔で設けずに、支軸６５ｃ側を多く、支軸６５ｃと反対側を少なく設けるなど個数を変えたり、又は支軸６５ｃ側と支軸６５ｃと反対側のツバ部６５ｄの形状や大きさを変えたりしても良い。 In this way, when the mounting position of the bottom lid 65b of the sleeve 65 is determined by the method of transferring the supply cup 62 and the opening/closing method of the bottom lid 65b, the sleeve 65 is properly set so that the bottom lid 65b can be appropriately opened and closed. It must be attached to the supply cup 62 in the orientation. Therefore, depending on the shape and position of the brim portion 65d, the orientation of the sleeve 65 attached to the supply cup 62 can be easily identified. For example, the number of support shafts 65c may be increased and the number of support shafts 65c may be reduced and the number opposite to the support shafts 65c may be reduced, or the number of support shafts 65c and support shafts 65c may be different. The shape and size of the flange portion 65d on the opposite side may be changed.

図５に示す例では、ツバ部６５ｄを三つ設けた場合に、等間隔に１２０度ずつ設けるのではなく、支軸６５ｃ側のツバ部６５ｄの間隔を狭くして、支軸６５ｃと反対側のツバ部６５ｄの間隔を広くしている。 In the example shown in FIG. 5, when three brim portions 65d are provided, the brim portions 65d on the side of the support shaft 65c are not spaced at equal intervals, but the intervals of the brim portions 65d on the side opposite to the support shaft 65c are reduced. The gap between the brim portions 65d is widened.

本構成により、供給カップ６２に取り付けるスリーブ６５の向きが容易に識別できる。
したがって、スリーブ６５を間違った向きで供給カップ６２に取り付けてしまうことを防止できる。 With this configuration, the orientation of the sleeve 65 attached to the supply cup 62 can be easily identified.
Therefore, it is possible to prevent the sleeve 65 from being attached to the supply cup 62 in the wrong direction.

また、スリーブ６５の底蓋６５ｂはツバ部６５の外周より内側に設けることで、スリーブ６５を供給カップ６２に容易に出し入れできる。 Further, by providing the bottom lid 65b of the sleeve 65 inside the outer circumference of the brim portion 65, the sleeve 65 can be easily put in and taken out of the supply cup 62.

図６には、スリーブ６５の本体部６５ａの外面に識別標識を設けた場合のスリーブ６５の斜視図を示す。 FIG. 6 shows a perspective view of the sleeve 65 when an identification mark is provided on the outer surface of the main body portion 65a of the sleeve 65.

例えば、スリーブ６５の取り付ける際の向きが分かるように、スリーブ６５の本体部６５ａの外面に矢印の刻印などの識別標識６５ｆを付しても良い。また、色を付けたり絵や文字を書いたりしても良い。本構成により、供給カップ６２に取り付けるスリーブ６５の向きが容易に識別できるため、スリーブ６５を間違った向きで供給カップ６２に取り付けてしまうことを防止できる。また、スリーブ６５だけでなく、供給カップ６２の外面又は内面にも同様の識別標識６５ｆを付しても良い。 For example, an identification mark 65f such as an arrow mark may be attached to the outer surface of the main body portion 65a of the sleeve 65 so that the orientation when the sleeve 65 is attached can be seen. You may also add color or draw pictures or letters. With this configuration, since the orientation of the sleeve 65 attached to the supply cup 62 can be easily identified, it is possible to prevent the sleeve 65 from being attached to the supply cup 62 in the wrong orientation. In addition to the sleeve 65, the same identification mark 65f may be attached to the outer surface or the inner surface of the supply cup 62.

図７には、スリーブ６５の本体部６５ａの形状を変えた場合のスリーブ６５の斜視図を示す。 FIG. 7 shows a perspective view of the sleeve 65 when the shape of the main body portion 65a of the sleeve 65 is changed.

供給カップ６２の形状を一部変えて、スリーブ６５の本体部６５ａの形状も供給カップ６２の形状に合わせて変えることでスリーブ６５の取り付ける際の向きが分かるようにしても良い。例えば、図７に示すように、円筒状の供給カップ６２の一部に平面部６２ｂを設け、スリーブ６５の本体部６５ａの形状もそれに合わせて平面部６５ａａを設ける。 It is also possible to partially change the shape of the supply cup 62 and change the shape of the main body portion 65a of the sleeve 65 according to the shape of the supply cup 62 so that the orientation when the sleeve 65 is attached can be known. For example, as shown in FIG. 7, a flat surface portion 62b is provided in a part of the cylindrical supply cup 62, and a flat surface portion 65aa is also provided in accordance with the shape of the main body portion 65a of the sleeve 65.

供給カップ６２とスリーブ６５の平面部同士が重なるように、スリーブ６５を供給カップ６２に取り付けることで、間違った向きに取り付けてしまうことを防止できる。したがって、本構成によっても、供給カップ６２に取り付けるスリーブ６５の向きが容易に識別できる。 By attaching the sleeve 65 to the supply cup 62 so that the flat surfaces of the supply cup 62 and the sleeve 65 overlap each other, it is possible to prevent the sleeve 65 from being attached in the wrong direction. Therefore, also with this configuration, the orientation of the sleeve 65 attached to the supply cup 62 can be easily identified.

また、スリーブ６５の底蓋６５ｂの支軸６５ｃに底蓋６５ｂが開く方向に付勢するトルク・スプリング６５ｅを設けても良い。供給カップ６２が支持板２６上を移送されて開口部２７に達すると、トルク・スプリング６５ｅの作用によってスリーブ６５の蓋６５ｂが素早く開くため、植付装置７への苗の受け継ぎを、よりスムーズに行うことできる。 Further, a torque spring 65e that biases the support shaft 65c of the bottom lid 65b of the sleeve 65 in the direction in which the bottom lid 65b opens may be provided. When the supply cup 62 is transported on the support plate 26 and reaches the opening 27, the lid 65b of the sleeve 65 is quickly opened by the action of the torque spring 65e, so that the seedlings can be transferred to the planting device 7 more smoothly. Can be done.

前記回転苗枠１００に苗箱３８を積載する構成では、苗箱３８から苗を取り出しやすく、回転により苗の入った苗箱３８を作業者の近くに移動させやすくあるが、苗箱３８は傾斜姿勢という不安定な姿勢で支持されていると共に、苗箱３８に収容される苗も滑り落ちやすく、苗箱３８や苗が落下し、苗を拾い上げる余分な作業が発生する問題や、落下時に苗が傷付く問題がある。 In the configuration in which the seedling box 38 is loaded on the rotating seedling frame 100, the seedlings can be easily taken out from the seedling box 38 and the seedling box 38 containing the seedlings can be easily moved to a worker by rotation, but the seedling box 38 is inclined. In addition to being supported in an unstable posture, the seedlings stored in the seedling box 38 also easily slip off, causing the seedling box 38 and the seedlings to fall, which causes extra work to pick up the seedlings, and the seedlings when falling. There is a problem that is scratched.

これを解消すべく、移植対象物用の載置台３０は、図１、図２及び図７、図８に示すとおり、苗供給装置６よりも前側に設ける側面視Ｌ字形状の左右の苗枠フレーム３１，３１と、該苗枠フレーム３１，３１よりも機体前側で機体上方に立接される左右の苗枠支柱３２，３２の上方に配置される。また、該載置台３０の左右方向の中心位置は、前記苗供給装置６の中心部に設ける供給回転軸６６ｆの直線上であり、且つ左右の後輪５，５の左右中央位置よりも機体左右他側（機体左側）に偏倚する位置に配置する。 In order to eliminate this, the placing table 30 for the transplant target is provided on the front side of the seedling feeding device 6 as shown in FIGS. The frames 31 and 31 are disposed above the seedling frame columns 31 and 31 and the left and right seedling frame support columns 32 and 32 which are erected on the machine body front side with respect to the machine body frames 31 and 31. Further, the center position of the mounting table 30 in the left-right direction is on the straight line of the supply rotation shaft 66f provided in the central portion of the seedling supply device 6, and in the left-right center position of the machine rather than the left-right center position of the left and right rear wheels 5, 5. Place it in a position that is offset to the other side (left side of the machine).

前記左右の苗枠フレーム３１，３１のうち、機体前方に突出する部分は、機体上方に向けて機体前側に向かうほど上方に位置する傾斜姿勢とし、積載する苗を収容した苗箱３８を傾斜により機体後側に移動させ、苗を取り出す位置が作業者に近くなる構成とする。 Of the left and right seedling frame frames 31, 31, the portions projecting toward the front of the machine body are in an inclined posture that is positioned higher toward the front side of the machine body toward the upper side of the machine body, and the seedling box 38 accommodating the seedlings to be loaded is inclined. It will be moved to the rear side of the machine, and the position where the seedlings are taken out will be close to the operator.

また、前記載置台３０は、左右方向に長い線材で構成する第１載置枠３３と、該第１載置枠３３の左右幅内で、機体前後方向に突出する線材で構成する第２載置枠３４を組み合わせて構成する。なお、第１載置枠３３は、第２載置枠３４の左右他側よりも左右一側（機体右側）の突出量を大きくすると共に、左右一側の端部の前後角部は、直角でなく後傾または前傾するテーパ部を形成する。このとき、第１載置枠３３の左右一側端部及び左右他側端部は、前記左右の前輪４，４及び後輪５，５よりも機体外側に位置する。 In addition, the mounting table 30 includes a first mounting frame 33 configured by a wire material that is long in the left-right direction and a second mounting frame configured by a wire material that protrudes in the front-rear direction of the machine body within the left-right width of the first mounting frame 33. It is configured by combining the placing frames 34. In addition, the first mounting frame 33 has a larger protrusion amount on one left and right side (right side of the machine body) than on the other side of the second mounting frame 34, and the front and rear corners of the one left and right side end have a right angle. Instead, a taper portion that tilts backward or forward is formed. At this time, the left and right one-side ends and the left and right other-side ends of the first mounting frame 33 are located outside the vehicle body with respect to the left and right front wheels 4, 4 and rear wheels 5, 5.

そして、前記第１載置枠３３の左右他側で、且つ外側端部よりも機体内側には、前後方向の回動支軸３５ａ，３５ｂを設け、該前後の回動支軸３５ａ，３５ｂを回動支点として、機体外側に向かって展開可能な回動苗枠３６を設ける。前記前後の回動支軸３５ａ，３５ｂのうち、機体後側に設ける後側の回動支軸３５ｂは、ボルト等の締め込みにより皿バネ等を圧縮することや、ダブルナットにより前記回動苗枠３６の回動に要する力を増減させる荷重調節機構３５ｃを有するものとする。 Further, on the other side of the first mounting frame 33 on the left and right sides, and inside the machine body with respect to the outer end portion, rotation support shafts 35a, 35b in the front-rear direction are provided, and the front and rear rotation support shafts 35a, 35b are provided. A rotating seedling frame 36 that can be deployed toward the outside of the machine body is provided as a rotation fulcrum. Of the front and rear rotation support shafts 35a and 35b, the rear rotation support shaft 35b provided on the rear side of the machine body is used to compress a disc spring or the like by tightening bolts or the like, or to rotate the rotation seedling by a double nut. It is assumed to have a load adjusting mechanism 35c that increases or decreases the force required to rotate the frame 36.

前記回動苗枠３６を機体外側に回動させるとき、前記第１載置枠３３の左右他側端部は、平面視で回動苗枠３６の機体内側端部と接触する位置にあるので、その位置で回動苗枠３６の回動が規制される。従って、回動苗枠３６が圃場に向かう下り傾斜姿勢になるまで回動せず、積載した苗の落下が防止される。 When the rotating seedling frame 36 is rotated to the outside of the machine body, the left and right other-side ends of the first mounting frame 33 are in positions where they are in contact with the ends of the rotating seedling frame 36 inside the machine body in plan view. The rotation of the rotating seedling frame 36 is restricted at that position. Therefore, the rotating seedling frame 36 does not rotate until it is in a downwardly inclined posture toward the field, and falling of the loaded seedlings is prevented.

上記により、載置台３０及び苗供給装置６の機体左右他側で、且つ左右他側の後輪５の後方に立って載置台３０上に載置した苗を取って苗供給装置６に供給する作業者が、回動苗枠３６の回動に必要な力の強弱を、苗の供給作業位置で行うことができる。従って、力の強弱調節の度に苗の供給作業位置を離れる必要が無く、作業能率が向上する。 According to the above, the seedlings placed on the placing table 30 are supplied to the seedling feeding device 6 while standing on the left and right other sides of the mounting table 30 and the seedling feeding device 6 and behind the rear wheels 5 on the left and right other sides. The operator can adjust the strength of the force required for the rotation of the rotating seedling frame 36 at the seedling supplying work position. Therefore, it is not necessary to leave the seedling supplying work position each time the strength of the force is adjusted, and the work efficiency is improved.

また、回動苗枠３６を回動可能に第１載置枠３３の左右他側で、且つ回動させると左右他側の後輪５よりも機体外側に突出する位置に設けたことにより、苗の積載量が増加し、苗の補充作業の頻度を減らすことができると共に、回動苗枠３６の展開時の位置を作業者が苗を取り易い位置とすることができるので、作業能率が向上する。 Further, since the rotating seedling frame 36 is rotatably provided on the left and right other sides of the first mounting frame 33, and when it is rotated, it is provided at a position projecting to the outside of the body with respect to the left and right other side rear wheels 5, Since the load of seedlings can be increased, the frequency of seedling replenishing work can be reduced, and the position of the rotating seedling frame 36 at the time of deployment can be set to a position where an operator can easily pick up seedlings, thus improving work efficiency. improves.

これに加えて、回動苗枠３６を載置台３０の上方に向けて回動させると、回動苗枠３６が載置台３０の機体外側から突出しないので、機体の左右幅のコンパクト化が図られる。 In addition, when the rotating seedling frame 36 is rotated toward the upper side of the mounting table 30, the rotating seedling frame 36 does not project from the outside of the mounting table 30. Therefore, the lateral width of the body can be reduced. To be

前記回動苗枠３６は、前記前後の回動支軸３５ａ，３５ｂに装着される線材で構成する平面視コの字形状の第１回動枠３６ａと、該第１回動枠３６ａの左右幅内に設けられ、機体前後方向に突出する線材で構成する第２回動枠３６ｂで構成する。該第２載置枠３４と第２回動枠３６ｂは、前後端部を機体上方に向けて屈曲させ、積載する苗を収容した苗箱３８を受ける苗箱受部３７を各々形成する。 The rotating seedling frame 36 includes a first rotating frame 36a having a U-shape in a plan view, which is composed of wires attached to the front and rear rotating support shafts 35a and 35b, and left and right sides of the first rotating frame 36a. The second rotation frame 36b is formed within the width and is formed of a wire rod that protrudes in the longitudinal direction of the machine body. The second placing frame 34 and the second rotating frame 36b are bent at their front and rear ends toward the upper side of the machine body to form seedling box receiving portions 37 for receiving the seedling boxes 38 containing the seedlings to be loaded.

前記第２載置枠３４と第２回動枠３６ｂは、前記第１載置枠３３及び第１回動枠３６ａの前後端部よりも機体前側及び後側に突出させるものとし、機体後側の突出量を機体前側よりも大きくする。また、第２載置枠３４と第２回動枠３６ｂの機体前側及び後側への突出量は同一とし、載置台３０と回動苗枠３６とで苗箱３８の移動に違いが生じない構成とし、苗箱３８の移動や取り出しを行いやすくし、作業能率を構成されるものとする。 The second mounting frame 34 and the second rotating frame 36b are projected to the front side and the rear side of the body with respect to the front and rear end portions of the first mounting frame 33 and the first rotating frame 36a. The protrusion amount of is larger than the front side of the machine. Further, the protrusion amounts of the second placing frame 34 and the second rotating frame 36b to the front side and the rear side of the machine body are the same, and there is no difference in the movement of the seedling box 38 between the placing table 30 and the rotating seedling frame 36. In this configuration, the seedling box 38 can be easily moved and taken out, and the work efficiency is configured.

これにより、積載した苗箱３８が機体後側寄りに移動し、苗の載置面を作業者側に向けるので、作業者が苗を取り出しやすく、作業能率が向上する。 As a result, the loaded seedling box 38 moves toward the rear side of the machine body and the placement surface of the seedling faces the operator side, so that the operator can easily take out the seedling and the work efficiency is improved.

また、図２及び図８に示すとおり、機体左右他側の前記苗枠フレーム３１の後部側と、前記後側の回動支軸３５ｂとを、補強プレート３９で連結する。該補強プレート３９は、機体左右一側の前記苗枠フレーム３１の前部側と、前記前側の回動支軸３５ａを連結するものを設けてもよいが、前記回動苗枠３６のうち、作業者が回動操作を行う機会が多く、負荷がかかって変形しやすい機体後側に設けていれば、補強効果は十分に発揮でき、回動苗枠３６の変形や破損が防止される。これに加えて、前側に補強プレート３９を設けないことにより、部品数や機体重量の軽減が図られる。 Further, as shown in FIGS. 2 and 8, the rear side of the seedling frame 31 on the other side of the machine body and the rear rotation support shaft 35b are connected by a reinforcing plate 39. The reinforcing plate 39 may be provided with one that connects the front part side of the seedling frame frame 31 on the left and right sides of the machine body and the rotation support shaft 35a on the front side. If the operator has many occasions to perform the rotating operation and is provided on the rear side of the machine body that is easily deformed due to a load, the reinforcing effect can be sufficiently exerted and the rotating seedling frame 36 is prevented from being deformed or damaged. In addition to this, by not providing the reinforcing plate 39 on the front side, the number of parts and the weight of the machine body can be reduced.

なお、前記載置台３０は、苗箱３８の長手方向を機体前後方向として載置する場合に３枚乗る程度の左右幅とし、前記回動苗枠３６は、１枚の苗箱３８が載る程度の左右幅とすると、機体から左右方向に突出する量を抑えつつ、苗箱３８を補充する頻度を効果が実感できる程度で低減することが可能となる。 It should be noted that the above-mentioned mounting table 30 has a lateral width of about 3 sheets when the longitudinal direction of the seedling box 38 is set as the machine front-rear direction, and the rotating seedling frame 36 is such that one seedling box 38 is mounted. If the width is set to the right and left, it is possible to reduce the frequency of replenishing the seedling box 38 while suppressing the amount of protrusion from the machine body in the left and right direction.

また、前記載置台３０は、第１載置枠３３の機体左右一側端部を機体左右他側端部と同一形状とすると共に、前後の回動支軸３５ａ，３５ｂを装着する孔部（図示省略）を形成して構成し、回動苗枠３６を機体左右一側に回動自在に装着可能にしてもよい。 In addition, in the mounting table 30, the left and right one-side ends of the first mounting frame 33 have the same shape as the left and right other-side ends of the body, and the hole portions for mounting the front and rear rotation support shafts 35a and 35b ( (Not shown) may be formed so that the rotating seedling frame 36 can be mounted rotatably on one side of the machine body.

なお、単純に回動苗枠３６を装着すると前後が逆になり、第２回動枠３６ｂの前後の突出量が逆になるので、機体左右他側に装着する状態においての裏面を、機体左右一側に装着するときの表面とする、或いは、図８に示すとおり、第２回動枠３６ｂを第１回動枠３６ａに対して前後方向に移動（スライド）可能に装着するものとし、左右どちら側に装着しても同様に苗箱３８を載置できる構成とする。 It should be noted that if the rotating seedling frame 36 is simply attached, the front and back will be reversed, and the amount of protrusion of the front and rear of the second rotating frame 36b will be opposite, so the back surface when attached to the other side of the aircraft It is assumed to be the surface when mounted on one side, or, as shown in FIG. 8, the second rotating frame 36b is mounted so as to be movable (sliding) in the front-rear direction with respect to the first rotating frame 36a. The seedling box 38 can be similarly placed on either side.

上記により、作業者の利き手や、作業を行う圃場の状態等の条件により、作業者が苗供給装置６の機体左右他側に立って苗の投入作業を行えないときに、機体左右一側に立って苗の投入作業を行うことができるので、様々な作業条件に対応できると共に、作業者が作業を行いやすい。 Due to the above, when the worker cannot stand on the other side of the body of the seedling supply device 6 to perform the seedling injection work due to the handedness of the worker or the condition of the field in which the work is performed, the left and right sides of the body can be operated. Since it is possible to stand up and perform seeding work, it is possible to handle various working conditions and it is easy for the worker to work.

前記載置台３０及び回動苗枠３６は、機体左右方向に複数の苗箱３８を積載し、回動苗枠３６上の苗箱３８に収容されている苗が無くなると、空になった苗箱３８を取り除き、載置台３０に積載されている苗の入った苗箱３８を回動苗枠３６に移動させるのが、一般的な作業である。なお、空の苗箱３８は、作業者が載置台３０の空きスペースに積載すればよい。 The mounting table 30 and the rotating seedling frame 36 are loaded with a plurality of seedling boxes 38 in the lateral direction of the machine body, and when the seedlings stored in the seedling box 38 on the rotating seedling frame 36 are exhausted, the seedlings are emptied. It is a general work to remove the box 38 and move the seedling box 38 containing the seedlings loaded on the mounting table 30 to the rotating seedling frame 36. The empty seedling box 38 may be loaded in an empty space of the mounting table 30 by an operator.

このとき、回動苗枠３６に近い苗箱３８は、作業者があまり手を伸ばさなくて届くので、簡単に載置台３０から回動苗枠３６に移動させることができる。しかしながら、機体左右一側端部に載置される苗箱３８は、作業者から離れた位置にあり、作業者は大きく手を伸ばさないと苗箱３８を移動させにくいという問題がある。 At this time, since the operator can reach the rotating seedling box 38 near the rotating seedling frame 36, the operator can easily move the seedling box 38 from the mounting table 30 to the rotating seedling frame 36. However, the seedling box 38 placed on the left and right side ends of the machine body is at a position away from the operator, and there is a problem that the operator cannot easily move the seedling box 38 unless the operator extends his or her hand greatly.

この問題を解消すべく、８に示すとおり、前記載置台３０を構成する第２載置枠３４のうち、機体前後方向の線材部分に、苗箱搬送ローラ４０…を回転可能に設ける。 In order to solve this problem, as shown in 8, a seedling box transport roller 40 is rotatably provided on a wire rod portion in the machine front-rear direction of the second mounting frame 34 constituting the mounting table 30.

これにより、載置台３０の機体左右一側に設ける苗箱３８は、隣接する苗箱３８が離間すると、苗箱搬送ローラ４０…の回転により機体左右他側に移動するので、作業者が手を無理に伸ばすことなく取れる位置に移動させることで、作業者の労力が軽減される。なお、苗箱３８が移動しないときは、作業者は載置台３０を揺さぶる等して、苗箱搬送ローラ４０…の回転を促す。 As a result, the seedling boxes 38 provided on one side of the mounting table 30 on the left and right sides of the machine body move to the other side of the machine body by the rotation of the seedling box transportation rollers 40 when the adjacent seedling boxes 38 are separated from each other. By moving it to a position where it can be taken without stretching it, the labor of the operator is reduced. When the seedling box 38 does not move, the operator shakes the mounting table 30 or the like to prompt the rotation of the seedling box transport rollers 40.

このとき、苗箱３８が機体左右一側端部に移動する可能性があるので、図苗箱搬送ローラ４０…には、機体左右他側に苗箱３８を移動させる方向にのみ回転を許容するワンウェイクラッチ（図示省略）を設けるとよい。 At this time, since the seedling box 38 may move to one end on the left and right sides of the machine body, the figure seedling box conveying rollers 40... Are allowed to rotate only in the direction in which the seedling box 38 is moved to the other side of the machine body. A one-way clutch (not shown) may be provided.

また、空の苗箱３８を積載したときに苗箱搬送ローラ４０…が苗箱３８を左右に移動させることを防止すべく、苗が収容されて重量が増加している苗箱３８を載せると苗箱搬送ローラ４０…が沈み込んで回転可能になる構成とすると、空の苗箱３８が左右に移動し、載置台３０から落下することが防止される。 Further, in order to prevent the seedling box transport rollers 40... from moving the seedling box 38 left and right when the empty seedling box 38 is loaded, the seedling box 38 in which seedlings are stored and whose weight is increasing is placed. If the seedling box carrying rollers 40 are set to be depressed and rotatable, the empty seedling box 38 is prevented from moving left and right and dropping from the mounting table 30.

前記載置台３０と回動苗枠３６の前端部は、前記左右の前輪４，４の後端部よりも機体前側で、且つ前輪４，４の車軸よりも機体後側に配置し、後端部は前記左右の後輪５，５の後端部よりも機体前側で、且つ後輪５，５の車軸よりも機体後側に配置する。これにより、前記載置台３０と回動苗枠３６は前輪４，４と後輪５，５の前後間に配置されることになる。 The front end portions of the mounting table 30 and the rotary seedling frame 36 are arranged on the front side of the vehicle body with respect to the rear end portions of the left and right front wheels 4 and 4 and on the rear side of the vehicle body with respect to the axles of the front wheels 4 and 4, and the rear ends thereof. The parts are arranged on the front side of the machine body with respect to the rear end portions of the left and right rear wheels 5, 5 and on the rear side of the machine body with respect to the axles of the rear wheels 5, 5. As a result, the mounting table 30 and the rotating seedling frame 36 are arranged in front of and behind the front wheels 4, 4 and the rear wheels 5, 5.

上記構成により、載置台３０及び回動苗枠３６を機体の前後バランスが変動しにくい位置に配置することができるので、植付作業により苗が減少すると重量が軽くなる苗箱３８を積載していても機体が前上がりや後上がりになりにくく、植付ホッパ７２が前傾姿勢、または後傾姿勢で苗を植え付けることが防止され、苗の根部側が均等に土に覆われて気温の影響を受けにくくなると共に、茎部や葉部が土に埋もれず、光合成機能が損なわれない。 With the above configuration, the placing table 30 and the rotating seedling frame 36 can be arranged at a position where the front-rear balance of the machine body is unlikely to change, so that the seedling box 38 that is lighter in weight when the seedlings are reduced by the planting work is loaded. Even if the aircraft does not rise or rise backwards, the planting hopper 72 is prevented from planting seedlings in a forward tilting posture or a backward leaning posture, and the root side of the seedlings is evenly covered with soil to prevent the influence of temperature. It is hard to receive, and the stems and leaves are not buried in the soil, and the photosynthetic function is not impaired.

また、前記載置台３０及び回動苗枠３６は、左右の支持フレーム３１，３１の後下がり傾斜姿勢となる部分に装着することで、同じく後下がり傾斜姿勢となるが、最下位置となる後端部は、供給装置６の上端面と同じ高さか、あるいは上端面よりもやや上方に位置する構成とする。 Further, by mounting the mounting table 30 and the rotating seedling frame 36 on the portions of the left and right support frames 31, 31 which are in the backward descending tilted posture, they are also in the rearward descending inclined posture, but at the bottom position. The end portion is configured to be at the same height as the upper end surface of the supply device 6 or slightly above the upper end surface.

これにより、作業者が苗箱３８から苗を取って移動させる際、供給装置６よりも上方に腕を上げる動作が不要になるので、腕が疲れにくく作業者の労力が軽減される。 As a result, when the operator takes the seedlings from the seedling box 38 and moves them, it is not necessary to raise the arm above the supply device 6, so that the arm is less tired and the labor of the operator is reduced.

また、苗箱３８から供給装置６への移動時間が僅かでも短縮されるので、苗の投入タイミングが遅れ、植付ホッパ７２に苗が供給されず、苗の植え付けが行われない、所謂欠株の発生が防止され、手作業による苗の植付作業が不要になる。 Further, since the moving time from the seedling box 38 to the supply device 6 is shortened even a little, the timing of introducing the seedlings is delayed, the seedlings are not supplied to the planting hopper 72, and the seedlings are not planted. This prevents the planting of seedlings and eliminates the need for manual planting of seedlings.

また、前記載置台３０の左右一側端部、即ち第１載置枠３３の左右一側端部は、前記ハンドル９の機体左右一側よりも機体外側に突出させる。 The left and right side ends of the mounting table 30, that is, the left and right side ends of the first mounting frame 33 are projected to the outside of the machine body rather than the one side of the machine body of the handle 9.

これにより、載置台３０の左右一側端部が機体左右一側のガード体になるので、作業者がハンドル９を把持して移動している際、機体の側方に壁や柱等の障害物があると、載置台３０の突出部が接触するので、作業者が障害物に接触することが防止される。 As a result, the left and right side end portions of the mounting table 30 serve as a guard body on the left and right sides of the machine body. Therefore, when an operator grips the handle 9 and moves, obstacles such as walls and pillars are laterally present on the machine body. When there is an object, the protruding portion of the mounting table 30 comes into contact, so that the worker is prevented from coming into contact with the obstacle.

なお、機体左右他側のガード体は、展開状態では回動苗枠３６であり、回動苗枠３６を収納しているときは、載置台３０の左右他側端部、即ち第１載置枠３３の左右他側端部である。 In addition, the guard body on the other side of the machine body is the rotating seedling frame 36 in the unfolded state, and when the rotating seedling frame 36 is stored, the left and right other end portions of the mounting table 30, that is, the first mounting The left and right other side ends of the frame 33.

前記載置台３０及び回動苗枠３６は、上方が開放されたものであり、載置される苗箱３８内の苗は、日光や外気に晒され続けることになる。日差しが強い時期や、空気が乾燥している時期では、作業時間が長いと苗が日に焼けたり、乾燥したりして弱り、移植後の生育が遅れたり、移植後に枯れてしまったりすることがある。特に、載置台３０の機体左右一側端部側に載置される苗箱３８の苗は、日光や外気の曝露時間が長く、弱りやすい。 The placing table 30 and the rotating seedling frame 36 are open at the top, and the seedlings in the seedling box 38 to be placed are continuously exposed to the sunlight and the outside air. When the working time is long, the seedlings may get sunburned or become dry and weak when the sunlight is strong or the air is dry, the growth after transplantation may be delayed, or the seedlings may die after transplantation. There is. In particular, the seedlings of the seedling box 38 placed on one side of the mounting table 30 on the left and right sides of the machine body are exposed to the sunlight and the outside air for a long time, and are easily weakened.

これを防止すべく、前記載置台３０と展開状態の回動苗枠３６の左右幅と略同じ左右長さで、且つ略同じ前後長さの日除けカバー４１を着脱可能に設けるとよい。 In order to prevent this, it is advisable to detachably install an awning cover 41 having substantially the same left and right length as the left and right widths of the mounting table 30 and the rotating seedling frame 36 in the deployed state.

図１２及び図１３に示すとおり、該日除けカバー４１は、前記第１載置枠３３の機体左右一側端部、第２載置枠３４の前後端部、第１回動枠３６ａの機体左右他側端部、及び第２回動枠３６ｂの前端部に形成する、苗箱３８の脱落防止のための苗箱受部３７を用いて着脱するものとする。 As shown in FIGS. 12 and 13, the awning cover 41 includes one side end of the first placing frame 33 on the left and right sides of the body, a front and rear end portion of the second placing frame 34, and the left and right sides of the first rotating frame 36a. The other side end portion and the front end portion of the second rotating frame 36b are attached and detached using a seedling box receiving portion 37 for preventing the seedling box 38 from falling off.

具体的には、下端部に取付フック４３を備える取付支柱４２の上端部に、前後方向の第１日除け枠４４と第２日除け枠４５を架け渡して日除けフレーム４６を構成し、該日除けフレーム４６上に日除けカーテン４７を被せる構成とする。 Specifically, the first and second awning frames 44 and 45 in the front-rear direction are bridged over the upper end of the mounting column 42 having the mounting hooks 43 at the lower end to form the awning frame 46, and the awning frame 46. The sunshade curtain 47 is covered on the top.

なお、該日除けカーテン４７は、装着状態では載置台３０及び回動苗枠３６の前後及び左右に垂れ下がり、載置台３０及び回動苗枠３６の苗箱３８の載置面（上面）までを覆うものとし、側方からの日光や風を遮断するものとする。また、前記日除けカーテン４７は透明性の低い白色とすると、日光を弱めつつ取り込むことで移植前の苗に光合成をさせることができる一方、熱の吸収を反射により弱めることができるので、日除けカバー４１の内部の気温の上昇が抑えられ、高温により苗が弱ることを防止できる。 In addition, the awning curtain 47 hangs down in the front and rear and right and left of the mounting table 30 and the rotating seedling frame 36 in the mounted state, and covers up to the mounting surface (upper surface) of the seedling box 38 of the mounting table 30 and the rotating seedling frame 36. It shall block the sunlight and wind from the sides. Further, if the awning curtain 47 is made of white with low transparency, the seedlings before transplantation can be photosynthesized by taking in while weakening the sunlight, while heat absorption can be weakened by reflection, so the awning cover 41 The rise in temperature inside the plant can be suppressed, and the seedlings can be prevented from weakening due to high temperatures.

前記載置台３０及び回動苗枠３６は、線材を組み合わせて構成しているので下方に空きスペースが多く、圃場面の照り返しによる熱を下方から受けやすいので、上記に加えて載置台３０及び回動苗枠３６の載置面に圃場面側（下部側）を白く塗った遮光体（図示省略）を設けると、照り返しによる苗への影響を抑えられる。 Since the placing table 30 and the rotating seedling frame 36 are configured by combining wire rods, there is a lot of empty space below, and it is easy to receive heat from the reflection of the field scene from below. By providing a shading body (not shown) in which the field scene side (lower side) is painted white on the placement surface of the moving seedling frame 36, it is possible to suppress the influence of the glare on the seedlings.

前記日除けカバー４１は、載置台３０及び回動苗枠３６に前後または左右歩行に摺動可能に設け、苗箱３８を載せる、あるいは下ろす際には、機体左右一側の上方を開放できるものとする。 The awning cover 41 is slidably mounted on the mounting table 30 and the rotating seedling frame 36 so that the seedling box 38 can be slid back and forth or left and right. To do.

これにより、苗箱３８の補充や取り出しの際に日除けカバー４１を着脱する必要が無く、作業能率が向上する。 As a result, it is not necessary to attach or detach the shade cover 41 when replenishing or taking out the seedling box 38, and the work efficiency is improved.

また、日除けカバー４１のうち、作業者が苗箱３８から苗を取って供給装置６に供給する回動苗枠３６側では、日光や外気に曝露する時間が短く、また苗を取り出す作業空間が必要になるので、日除けカバー４１には、少なくとも回動苗枠３６の前後中央位置よりも後側は覆わない開放部４８を形成する。 In the shade cover 41, on the side of the rotating seedling frame 36 where the operator takes the seedlings from the seedling box 38 and supplies the seedlings to the supply device 6, the exposure time to the sunlight and the outside air is short, and the working space for taking out the seedlings is small. Since it is necessary, the sunshade cover 41 is formed with an open portion 48 that does not cover at least the rear side of the front and rear central positions of the rotating seedling frame 36.

なお、載置台３０から回動苗枠３６に苗箱３８を移動させる際、載置台３０を日よけカバー４１が完全に覆っていると、作業者は内部の苗箱３８に手を届かせにくくなるので、載置台３０の機体後側で、且つ機体左右他側の一部に開放部４８を拡大するとよい。 In addition, when moving the seedling box 38 from the mounting table 30 to the rotating seedling frame 36, if the sunshade cover 41 completely covers the mounting table 30, the operator can reach the seedling box 38 inside. Since it becomes difficult, it is advisable to expand the opening portion 48 on the rear side of the mounting table 30 in the machine body and in a part of the left and right sides of the machine body.

これにより、作業者は日除けカバー４１に動作を妨げられることなく苗箱３８から苗を取り出して供給装置６に移動させることができるので、作業能率が向上する。 As a result, the worker can take out the seedlings from the seedling box 38 and move them to the supply device 6 without being obstructed by the shade cover 41, so that the working efficiency is improved.

また、日除けカバー４１により、日光や気温の影響から苗を守ることができるので、植付前に苗が弱ることが防止され、生育が安定すると共に、植え付けられた苗が枯れることが防止される。 In addition, the shade cover 41 can protect the seedlings from the effects of sunlight and temperature, so that the seedlings are prevented from weakening before planting, the growth is stabilized, and the planted seedlings are prevented from withering. ..

しかしながら、上記構成でも回動苗枠３６の前後中央部よりも前側には日除けカバー４１があるので、苗箱３８のうち機体前部側のものを取り出すときには、日除けカバー４１内に手を突っ込む必要があり、苗が取り出しにくくなる問題がある。 However, even with the above configuration, since the sunshade cover 41 is located in front of the front and rear central portions of the rotating seedling frame 36, when taking out the seedling box 38 on the front side of the machine body, it is necessary to put a hand into the sunshade cover 41. There is a problem that it is difficult to take out the seedlings.

この問題を解消すべく、図８及び図１３に示すとおり、前記第２回動枠３６ｂを、第１回動枠３６ａに対して前後方向にスライド可能に装着し、苗箱３８を載置したまま機体後側に第２回動枠３６ｂを移動可能に構成する。 In order to solve this problem, as shown in FIGS. 8 and 13, the second rotating frame 36b is slidably mounted in the front-rear direction with respect to the first rotating frame 36a, and the seedling box 38 is placed thereon. The second rotation frame 36b is configured to be movable to the rear side of the machine body.

これにより、日除けカバー４１の被覆範囲よりも機体後側に苗箱３８を移動させることができるので、苗箱３８から苗を取り出しやすくなり、作業能率の向上が図られると共に、苗の供給タイミングの遅延が防止される。 As a result, the seedling box 38 can be moved to the rear side of the aircraft from the coverage of the sunshade cover 41, so that the seedlings can be easily taken out from the seedling box 38, work efficiency can be improved, and the seedling supply timing can be improved. Delays are prevented.

なお、苗箱３８の機体前側にある苗は依然として取り出しにくいが、第２回動枠３６ｂを後方に引き出し、苗箱３８を取り出して１８０度回転させると、苗がある側が開放部４８の下方、即ち機体後側を向くので、苗が取り出しやすくなる。 The seedlings on the front side of the body of the seedling box 38 are still difficult to take out, but when the second rotating frame 36b is pulled out rearward and the seedling box 38 is taken out and rotated by 180 degrees, the side where the seedlings are is below the open portion 48, That is, the seedlings can be taken out easily because they face the rear side of the aircraft.

上記の日除けカバー４１は、日光や気温に対して高い防護が可能であるが、苗や苗箱３８の取り出しやすさを低下させることが問題である。 Although the above-mentioned sunshade cover 41 can provide high protection against sunlight and temperature, there is a problem that the ease of taking out the seedlings and the seedling box 38 is reduced.

これに代わり、第１載置枠３３及び第１回動枠３６ａを中空のパイプで構成し、複数の散水孔４９…を形成し、該散水孔４９…から苗箱３８に水を供給する構成としてもよい。
第１載置枠３３と第１回動枠３６ａの連結は、前後各々ジョイントパイプ５２を介して行うものとする。 Instead of this, the first mounting frame 33 and the first rotating frame 36a are formed of hollow pipes, a plurality of water spray holes 49 are formed, and water is supplied from the water spray holes 49 to the seedling box 38. May be
The first mounting frame 33 and the first rotating frame 36a are connected to each other through joint pipes 52 in the front and rear.

左右の前記走行チェーンケース１１，１１には、圃場に植え付けた苗に供給するための水を貯留する水タンク５０を積載するタンク台５１が各々装着され、車体１０には該水タンク５０からホースを介して水を吸い上げ、苗の植付位置付近に水を供給する給水ポンプ（図示省略）を設けている。 The left and right traveling chain cases 11, 11 are respectively equipped with tank stands 51 for loading water tanks 50 for storing water to be supplied to seedlings planted in a field, and the vehicle body 10 is equipped with hoses from the water tanks 50. A water supply pump (not shown) is provided to suck water through the plant and supply the water near the planting position of the seedlings.

本構成では、図１４及び図１５に示すとおり、左右どちらか一側の水タンク５０に第１ホース５３の一端を差し込み、該第１ホース５３の他端を第１載置枠３３の前側の左右一側の接続孔（図示省略）に連結する。また、第１載置枠３３の後側の左右一側の接続孔に第２ホース５４の一端を差し込み、該第２ホース５４の他端を給水ポンプに接続する。 In this configuration, as shown in FIGS. 14 and 15, one end of the first hose 53 is inserted into the water tank 50 on one of the left and right sides, and the other end of the first hose 53 is provided on the front side of the first mounting frame 33. It is connected to a connection hole (not shown) on the left and right sides. In addition, one end of the second hose 54 is inserted into the connection hole on the left and right sides on the rear side of the first mounting frame 33, and the other end of the second hose 54 is connected to the water supply pump.

この構成により、給水ポンプを作動させると水タンク５０から水の吸い上げが開始され、水は第１ホース５３、第２ホース５４、第１載置枠３３及び第１回動枠３６ａを通過して苗の植付位置付近に供給される。このとき、前記散水孔４９…から搬送中の水が噴き出し、載置台３０及び回動苗枠３６に積載している苗箱３８に水が供給される。 With this configuration, when the water supply pump is operated, suction of water is started from the water tank 50, and the water passes through the first hose 53, the second hose 54, the first mounting frame 33, and the first rotating frame 36a. Supplied near the seedling planting position. At this time, the water that is being conveyed is spouted from the water spray holes 49... And the water is supplied to the seedling box 38 loaded on the mounting table 30 and the rotating seedling frame 36.

これにより、苗の植付作業中に苗箱３８に水が供給されるので、乾燥による水分不足や、高温による生育障害が防止される。 As a result, water is supplied to the seedling box 38 during the seedling planting operation, so that water shortage due to drying and growth failure due to high temperature are prevented.

なお、前記散水孔４９…は、水をある程度勢いよく噴き出させ、且つ苗の植付位置付近に供給する水が少なくなり過ぎることを防止すべく、極細い（ｍｍ単位、あるいはそれ以下）の孔とするとよい。 In addition, the water spray holes 49 are of extremely thin (mm unit or less) in order to spout water to some extent and prevent the water supplied near the planting position of the seedling from becoming too small. It should be a hole.

また、水を供給するだけでは、日光の直射による影響が軽減されないので、散水孔４９…毎に霧状に水を散水する霧吹きノズル（図示省略）を装着し、載置台３０及び回動苗枠３６の周囲を霧で覆い、日光を遮る構成としてもよい。 In addition, since the influence of direct sunlight is not reduced only by supplying water, a spray nozzle (not shown) that sprays water in a mist state is attached to each water spray hole 49, and the mounting table 30 and the rotating seedling frame are attached. The surroundings of 36 may be covered with fog to block sunlight.

前記構成は、パイプとする載置台３０及び回動苗枠３６内に水を通さねばならず、作業後に内部の水気を除去することが困難であり、水による腐食が生じやすい問題がある。 In the above configuration, water must be passed through the mounting table 30 and the rotating seedling frame 36, which are pipes, and it is difficult to remove moisture inside the work, and there is a problem that water corrosion is likely to occur.

このため、図１６及び図１７に示すとおり、第１ホース５３を水タンク５０から給水ポンプに接続し、給水ポンプから第２ホース５４を介して苗箱３８に水を供給する構成とする。前記第２ホース５４は、前記第２載置台３４の前側に保持クリップ５５を設け、該保持クリップ５５でその場に固定するものとする。なお、第２ホース５４には、苗箱３８に散水する水量や水勢を調整すべく、ノズルを取り付ける。また、第１ホース５３及び第２ホース５４は、塩化ビニル等の合成樹脂で構成し、内部に水が残っていても劣化しにくくする。 Therefore, as shown in FIGS. 16 and 17, the first hose 53 is connected to the water supply pump from the water tank 50, and water is supplied from the water supply pump to the seedling box 38 via the second hose 54. The second hose 54 is provided with a holding clip 55 on the front side of the second mounting table 34, and is fixed in place by the holding clip 55. In addition, a nozzle is attached to the second hose 54 in order to adjust the amount and the water force of the water sprayed on the seedling box 38. Further, the first hose 53 and the second hose 54 are made of a synthetic resin such as vinyl chloride so that they are not easily deteriorated even if water remains inside.

これにより、載置台３０及び回動苗枠３６は外部に水がかかるものの、天日乾燥や拭き取りにより簡単に水が除去できるので、腐食による耐久性の低下が防止される。 As a result, although water is splashed to the outside of the mounting table 30 and the rotating seedling frame 36, the water can be easily removed by sun-drying or wiping, so that deterioration of durability due to corrosion is prevented.

また、保持クリップ５５で第２ホース５４を固定することで、特定の位置に水を供給することができるので、苗の供給作業に回されるまでに時間を要する苗箱３８の苗が弱ることが防止される。 Further, since the water can be supplied to a specific position by fixing the second hose 54 with the holding clip 55, the seedlings in the seedling box 38 that require time to be fed to seedlings are weak. Is prevented.

なお、前記給水ポンプは、植付装置７による苗の間欠植え付けに連動しており、苗の植え付けが行われるタイミングで水を吸い上げるので、常時水を供給し続けるものではない。したがって、散水孔４９…や第２ホース５４から供給される水は苗箱３８に間欠的に供給され、苗が水分過剰でかえって弱ることが防止されると共に、水タンク５０内の水の消費が抑えられるので、頻繁に水タンク５０を交換する必要が無い。 The water supply pump is interlocked with the intermittent planting of the seedlings by the planting device 7 and sucks up the water at the timing when the seedlings are planted, so that the water is not constantly supplied. Therefore, the water supplied from the sprinkling holes 49... Or the second hose 54 is intermittently supplied to the seedling box 38, which prevents the seedlings from weakening due to excessive water content and consumes water in the water tank 50. Since it is suppressed, it is not necessary to replace the water tank 50 frequently.

なお、上記の方法で水を供給する必要が無いときには、前記左右の支持フレーム３１，３１の下部に設ける取付フック３１ａに水の入った如雨露などを吊り下げておき、必要に応じて作業者が水を苗箱３８に供給してもよい。 When it is not necessary to supply water by the above method, rain dew or the like containing water is suspended on the mounting hooks 31a provided at the lower portions of the left and right support frames 31, 31, and the operator can Water may be supplied to the seedling box 38.

上記の載置台３０には、苗箱搬送ローラ４０…を設けて苗箱３８を機体左右一側から左右他側、即ち回動苗枠３６側に移動させやすくしている。これに加えて、苗箱３８を載置台３０に積み込む、あるいは取り出しやすくすべく、図１８及び図１９で示すとおり、第２載置枠３４の前後の苗箱受部３７の上端部、及び第１載置枠３３の機体左右一側の苗箱受部３７に、補助ローラ５６を各々回転自在に設けてもよい。 The above-mentioned mounting table 30 is provided with seedling box carrying rollers 40, so that the seedling box 38 can be easily moved from one side of the machine left and right to the other side of the body, that is, the side of the rotating seedling frame 36. In addition to this, in order to easily load or take out the seedling box 38 on the mounting table 30, as shown in FIGS. 18 and 19, the upper end portions of the seedling box receiving portions 37 before and after the second mounting frame 34, and The auxiliary rollers 56 may be rotatably provided on the seedling box receiving portions 37 on the left and right sides of the machine body of the first mounting frame 33.

これにより、苗箱受部３７に苗箱３８の底部を接触させると、苗箱３８が引っ掛かることなく載置台３０上に乗ると共に、載置台３０から引き上げることができるので、苗箱３８の積み下ろし作業が円滑に行われる。 With this, when the bottom of the seedling box 38 is brought into contact with the seedling box receiving portion 37, the seedling box 38 can be placed on the placing table 30 without being caught and can be pulled up from the placing table 30, so that the seedling box 38 can be loaded and unloaded. Is carried out smoothly.

また、前記左右の支持フレーム３１，３１は、載置台３０の上下高さを定めているが、左右で共通の上下長さとしているので、車体１０を左右方向に傾斜させなければ載置台３０も左右方向に傾斜しない。これでは、前記苗箱搬送ローラ４０…を設けていても、苗箱３８は作業者が触れなければ機体左右一側から機体左右他側に移動できない。 Further, the left and right support frames 31, 31 define the vertical height of the mounting table 30, but since the left and right support frames 31 have the same vertical length, the mounting table 30 is also supported unless the vehicle body 10 is tilted in the left-right direction. Do not tilt to the left or right. In this case, even if the seedling box carrying rollers 40 are provided, the seedling box 38 cannot be moved from one side of the machine body to the other side of the machine body unless the operator touches it.

したがって、図１９及び図２０（ａ）（ｂ）で示すとおり、前記左右の支持フレーム３１，３１は、各々独立して上下長さを変更可能とし、機体左右一側の上下長さを機体左右他側の上下長さよりも長くすると、車体１０を傾斜させることなく載置台３０を機体左右他側が低くなる傾斜姿勢とすることができる。これにより、機体左右一側の端部側に載置する苗箱３８を、作業者が触れることなく苗箱搬送ローラ４０…によって機体左右他側に移動させることができるので、作業能率が向上する。 Therefore, as shown in FIG. 19 and FIGS. 20A and 20B, the left and right support frames 31 and 31 are capable of independently changing the vertical length, and the vertical length on one side of the body is set to the left and right of the body. If it is longer than the vertical length of the other side, the mounting table 30 can be in an inclined posture in which the other side of the machine body becomes lower without tilting the vehicle body 10. As a result, the seedling box 38 placed on the end of the one side of the machine body can be moved to the other side of the machine body by the seedling box conveying rollers 40 without touching the operator, so that the work efficiency is improved. ..

なお、上記の方法は、日除けカバー４１を設け、作業者が日除けカバー４１内部の苗箱３８に手を届かせにくいときに、特に有効である。 The above method is particularly effective when the shade cover 41 is provided and it is difficult for an operator to reach the seedling box 38 inside the shade cover 41.

また、上記の載置台３０及び回動苗枠３６は、苗を使い切って空になった苗箱３８を載置する際、苗のある苗箱３８を機体左右他側に移動させ、機体左右一側の空きスペースに配置する必要がある。しかしながら、この作業を行うには、作業者は供給装置６の左右一側に移動するか、あるいは車体１０上に身を乗り出して苗箱３８を載置台３０に載せる必要があり、余分な労力を費やす必要がある。 In addition, the mounting table 30 and the rotating seedling frame 36 move the seedling box 38 with seedlings to the left and right sides of the machine body when placing the seedling box 38 that has become empty after the seedlings have been used up. Must be placed in an empty space on the side. However, in order to perform this work, it is necessary for the operator to move to the left or right side of the supply device 6 or to lean out on the vehicle body 10 and place the seedling box 38 on the mounting table 30, which is an extra effort. Need to spend.

この作業を軽減すべく、図２１に示すとおり、前記第１載置枠３３の下部側には、第１載置枠３３の機体前側及び機体後側に左右方向に延びる線材を繋ぎ、苗のない空の苗箱３８を保持できる空箱置きフック５７を設けるとよい。該空箱置きフック５７は、側面視でＵ字形状（凹形状）とする。 In order to reduce this work, as shown in FIG. 21, a wire rod extending in the left-right direction is connected to the lower side of the first mounting frame 33 on the front side and the rear side of the first mounting frame 33 to connect the seedlings. It is preferable to provide an empty box placing hook 57 capable of holding an empty empty seedling box 38. The empty box placing hook 57 has a U-shape (concave shape) in a side view.

これにより、空の苗箱３８を載置台３０の機体左右一側に無理に載置する必要が無く、作業者の労力が軽減される。 As a result, it is not necessary to forcibly mount the empty seedling box 38 on one side of the mounting table 30 on the left and right sides of the machine body, and the labor of the operator is reduced.

また、圃場内に苗箱３８を置いていく必要が無く、後から苗箱３８を回収する作業が不要になる。 Further, it is not necessary to leave the seedling box 38 in the field, and the work of collecting the seedling box 38 later is not necessary.

本発明の移植機は、野菜苗等の種々の作物を植え付ける移植機として利用可能性がある。 INDUSTRIAL APPLICABILITY The transplanter of the present invention can be used as a transplanter for planting various crops such as vegetable seedlings.

５ 後輪（走行輪）
６ 供給装置
７ 植付装置
９ ハンドル
１０ 車体
３０ 載置台
３６ 回動苗載せ台
３６ａ 第１回動枠
３６ｂ 第２回動枠
３８ 苗箱
１００ 回転苗枠（苗載せ台）
１０１ 回転軸（苗載せ支柱）
１０３ 上側構成体（支持アーム）
１０４ 中段構成体（支持アーム）
１０５ 下側構成体（支持アーム） 5 Rear wheels (running wheels)
6 Supply Device 7 Planting Device 9 Handle 10 Car Body 30 Placement Table 36 Rotating Seedling Placement Table 36a First Rotating Frame 36b Second Turning Frame 38 Seedling Box 100 Rotating Seedling Frame (Seedling Placement Table)
101 Rotation axis (seedling support column)
103 Upper structure (support arm)
104 Middle stage structure (support arm)
105 Lower side structure (support arm)

Claims (4)

走行輪（５）により走行する車体（１０）と、該車体（１０）に配置され、苗を植え付ける植付装置（７）と、回転して苗を移送して該植付装置（７）に供給する供給装置（６）と、植付用の苗を収容する苗箱（３８）を載置する苗載せ台（１００）を備えた移植機において、
該苗載せ台（１００）を支持する苗載せ支柱（１０１）を前記供給装置（６）に設け、該苗載せ支柱（１０１）は、前記供給装置（６）の回転に連動せず独立して回転可能に設け、
前記苗載せ台（１００）は、前記苗載せ支柱（１０１）に苗箱（３８）を傾斜姿勢で支持する支持アーム（１０３，１０４，１０５…）を供給装置（６）の外縁部に向けて設け、該支持アーム（１０３，１０４，１０５…）の外側端部は、前記供給装置（６）の外縁部よりも内側に位置することを特徴とする移植機。 A vehicle body (10) traveling by traveling wheels (5), a planting device (7) arranged on the vehicle body (10) for planting seedlings, and a seedling device that rotates to transfer seedlings to the planting device (7). In a transplanter equipped with a supply device (6) for supplying and a seedling platform (100) for mounting a seedling box (38) containing seedlings for planting,
The feeding device (6) is provided with a seedling placing column (101) for supporting the seedling placing table (100), and the seedling placing column (101) is independently linked to the rotation of the feeding device (6). Rotatably installed ,
In the seedling placing table (100), the support arms (103, 104, 105...) Supporting the seedling placing box (38) on the seedling placing column (101) in an inclined posture are directed toward the outer edge portion of the supply device (6). A transplanter provided, wherein the outer ends of the support arms (103, 104, 105...) Are located inside the outer edge of the supply device (6) . 前記支持アーム（１０３，１０４，１０５…）は上下方向に複数設け、機体下側ほど長くし、複数の該支持アーム（１０３，１０４，１０５…）に載置する苗箱（３８）は、機体下側ほど前記供給装置（６）の外縁部に近付く傾斜姿勢となることを特徴とする請求項１に記載の移植機。 Before Ki支 lifting arm (103, 104, 105 ...) are a plurality in the vertical direction, seedling box and longer as the aircraft under side, it is placed on the plurality of the support arms (103, 104, 105 ...) (38) The transplanting machine according to claim 1, wherein the lower side of the machine body is in an inclined posture so as to approach the outer edge portion of the supply device (6). 前記供給装置（６）の機体前側に植付用の苗を収容する苗箱（３８）を載置する載置台（３０）を配置し、
該苗載せ台（３０）は、機体外側に向けて回動可能な回動苗載せ台（３６）を左右一側に備え、前記苗載せ台（３０）の左右中央部は、前記車体（１０）の左右中央部よりも左右他側に偏倚させる構成としたことを特徴とする請求項１または２に記載の移植機。 A placing table (30) for placing a seedling box (38) containing a seedling for planting is arranged on the front side of the body of the supply device (6),
The seedling placing table (30) is provided with a rotatable seedling placing table (36) which is rotatable toward the outside of the machine body on one side of the left and right sides, and the left and right central portions of the seedling placing table (30) are the vehicle body (10). 3. The transplanter according to claim 1 or 2, wherein the transplanter is configured to be biased to the left and right other sides than the left and right central portion . 前記回動苗載せ台（３６）は、前記苗載せ台（３０）に回動可能に装着される第１回動枠（３６ａ）と、第１回動枠（３６ａ）から機体前側及び後側に突出させて配置する第２回動枠（３６ｂ）で構成し、
該第２回動枠（３６ｂ）の第１回動枠（３６ａ）から機体後側への突出量は、第１回動枠（３６ａ）から機体前側への突出量よりも大きくしたことを特徴とする請求項３に記載の移植機。 The rotating seedling placing table (36) includes a first rotating frame (36a) rotatably mounted on the seedling placing table (30), and front and rear sides of the body from the first rotating frame (36a). It is composed of a second rotating frame (36b) that is projected and arranged in
The amount of protrusion of the second rotating frame (36b) from the first rotating frame (36a) to the rear side of the machine body is larger than the amount of protrusion from the first rotating frame (36a) to the front side of the machine body. The transplanter according to claim 3 .
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