JP5029028B2 - Multi-row seedling planting machine - Google Patents

Multi-row seedling planting machine Download PDF

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JP5029028B2
JP5029028B2 JP2007011370A JP2007011370A JP5029028B2 JP 5029028 B2 JP5029028 B2 JP 5029028B2 JP 2007011370 A JP2007011370 A JP 2007011370A JP 2007011370 A JP2007011370 A JP 2007011370A JP 5029028 B2 JP5029028 B2 JP 5029028B2
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seedling
planting
supply
seedling planting
seedlings
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JP2008173079A (en
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勝野　　志郎
村並　　昌実
大久保　　嘉彦
英明 黒瀬
土井　　宏貴
暢宏 山根
幸太 東
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Iseki and Co Ltd
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Priority to CN2007101597274A priority patent/CN101228819B/en
Priority to KR1020070135611A priority patent/KR100923239B1/en
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    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C11/00—Transplanting machines
    • A01C11/02—Transplanting machines for seedlings
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/02—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements mounted on tractors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/20—Off-Road Vehicles
    • B60Y2200/22—Agricultural vehicles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Transplanting Machines (AREA)

Description

この発明は、複数の苗植付け体を左右に配列した複数条植え苗植機に関するものである。   The present invention relates to a multi-row planting seedling planting machine in which a plurality of seedling planting bodies are arranged on the left and right.

上下動機構により所定の作動軌跡で上下動して圃場に苗を植え付ける構成のくちばし状の苗植付け体を左右に各々設け、該左右各々の苗植付け体へ苗を供給する苗供給装置を設け、前記苗供給装置は、苗を収容する複数の苗収容体となる苗供給カップと、該複数の苗供給カップを所定の配列ピッチでループ状に配置し順次各々の苗植付け体の上方を通過するように周回移動させるスプロケット等からなる移動機構と、苗供給カップの底蓋を閉状態で支持する底蓋支持部材を苗植付け体の上方位置となる落下供給位置で欠如させた構成として、移動機構により苗供給カップが前記落下供給位置に移動すると前記底蓋を開いて苗供給カップが収容する苗を上下動機構で上動した苗植付け体へ落下供給させる苗落下供給機構とを備え、該苗落下供給機構は、左右各々の苗植付け体に対応する左右各々の落下供給位置を備えると共に、一方の落下供給位置で落下供給する苗を収容する第一の苗供給カップと他方の落下供給位置で落下供給する苗を収容する第二の苗供給カップとを各別に且つ周回移動経路に沿って交互に設けて、前記第一及び第二の苗供給カップが移動機構による周回移動で各々の落下供給位置に同じ回数到達する構成とした複数条植えの苗植機において、各々の苗植付け体の下部を左右方向に偏位させ、各々の苗植付け体による苗植付位置を各々の落下供給位置に対して若干左右方向にずらせて所望の苗植付位置ひいては植付条間で苗を植え付けできるようにしたものがある（特許文献１参照。）。   A beak-shaped seedling planting structure configured to plant a seedling in a field by moving up and down with a predetermined operation locus by a vertical movement mechanism is provided on each side, and a seedling supply device that supplies seedlings to each of the left and right seedling planting bodies is provided, The seedling supply device includes a seedling supply cup serving as a plurality of seedling containers for storing seedlings, and a plurality of seedling supply cups arranged in a loop at a predetermined arrangement pitch and sequentially passing above each seedling planting body. As a configuration in which the moving mechanism composed of a sprocket or the like that moves in a circular manner and the bottom lid support member that supports the bottom lid of the seedling supply cup in the closed state are missing at the drop supply position that is above the seedling planting body, A seedling drop supply mechanism that opens the bottom lid and drops the seedling accommodated in the seedling supply cup when the seedling supply cup is moved to the fall supply position by the vertical movement mechanism. Drop supply The structure has left and right drop supply positions corresponding to the right and left seedling planted bodies, and a first seedling supply cup for storing seedlings to be supplied at one fall supply position and a drop supply at the other fall supply position. Second seedling supply cups for storing seedlings to be placed are provided alternately and along the circular movement path, and the first and second seedling supply cups are moved to the respective drop supply positions by circular movement by a moving mechanism. In a multi-row seedling planting machine configured to reach the same number of times, the lower part of each seedling planting body is displaced in the left-right direction, and the seedling planting position by each seedling planting body is relative to each fall supply position There is one in which the seedling can be planted between desired planting positions and thus between planting strips by shifting it slightly in the left-right direction (see Patent Document 1).

また、上下動機構により所定の作動軌跡で上下動して圃場に苗を植え付ける構成のくちばし状の苗植付け体を左右に各々設け、該左右各々の苗植付け体へ苗を供給する左右各々の苗供給装置を設け、前記苗供給装置は、苗を収容する複数の苗収容体となる苗供給カップと、該複数の苗供給カップを所定の配列ピッチでループ状に配置し順次苗植付け体の上方を通過するように周回移動させる移動機構と、該移動機構により苗収容体が苗植付け体の上方位置となる落下供給位置に移動すると苗収容体が収容する苗を上下動機構で上動した苗植付け体へ落下供給させる苗落下供給機構とを備えた複数条植えの苗植機において、左右一方の苗植付け体を移動できる植付位置変更機構を設けたものがある（特許文献２参照。）。
特開２００６−９４８３２号公報 特開２００２−８４８２７号公報 Also, left and right seedlings for supplying seedlings to the left and right seedling planting bodies are provided on the left and right, respectively, with beak-shaped seedling planting structures configured to move up and down along a predetermined operating locus by a vertical movement mechanism and plant seedlings in a field. Provided with a supply device, the seedling supply device is a seedling supply cup to be a plurality of seedling containers for storing seedlings, and the plurality of seedling supply cups are arranged in a loop at a predetermined arrangement pitch, and sequentially above the seedling planting body And a seedling that has been moved up by a vertical movement mechanism when the seedling container is moved to a fall supply position that is above the seedling planting body by the moving mechanism. In a multi-row planting seedling machine provided with a seedling dropping supply mechanism that drops and supplies to a planting body, there is one provided with a planting position changing mechanism that can move one of the right and left seedling planting bodies (see Patent Document 2). .
JP 2006-94832 A JP 2002-84827 A

上記背景技術のものは、苗植付け体を偏位させるか又は移動させることで苗植付位置を調節するものであり、何れも苗植付け体へ苗を落下供給させる落下供給位置を変更するものではないので、苗植付位置の調節量に限界があり、植付条間の変更調節に限界がある。尚、上記特許文献２のものにおいて、苗植付け体の移動に伴って苗供給装置全体を移動させて落下供給位置を変更することが考えられるが、この場合は、苗供給装置全体を移動させなければならないので、植付条間の変更を容易に行えないという問題がある。   The above-mentioned background art is for adjusting the seedling planting position by shifting or moving the seedling planting body, and any of them does not change the fall supply position to drop and supply the seedling to the seedling planting body Since there is no limit, there is a limit to the amount of adjustment of the seedling planting position, and there is a limit to the adjustment of changes between planting lines. In addition, in the thing of the said patent document 2, although it is possible to change the fall supply position by moving the whole seedling supply apparatus with the movement of a seedling planting body, in this case, the whole seedling supply apparatus must be moved. Therefore, there is a problem that it is difficult to change between planting rules.

そこで、本発明は、単一のループ状経路で周回移動する苗収容体を備える共通の苗供給装置で左右の苗植付け体へ苗を供給する構成として、構成の簡素化及び苗供給装置への苗補給の容易化を維持しながら、苗植付け体への苗の供給が適正に行えて且つ簡単に植付条間を変更できるようにすることを課題とする。   Therefore, the present invention is a structure for supplying seedlings to the right and left seedling planting bodies with a common seedling supply apparatus including a seedling container that moves around in a single loop path, and simplification of the configuration and to the seedling supply apparatus It is an object of the present invention to make it possible to appropriately supply seedlings to a seedling planting body and easily change between planting strips while maintaining ease of seedling replenishment.

この発明は、上記課題を解決すべく次のような技術的手段を講じた。
すなわち、請求項１に係る発明は、上下動機構（４）により上下動して圃場に苗を植え付ける苗植付け体（５）を左右に各々設け、該左右各々の苗植付け体（５）へ苗を供給する苗供給装置（２４）は、苗を収容する複数の苗収容体（２５）と、該複数の苗収容体（２５）を所定の配列ピッチでループ状に配置し順次各々の苗植付け体（５）の上方を通過するように周回移動させる移動機構（２６）と、該移動機構（２６）により苗収容体（２５）が苗植付け体（５）の上方位置となる落下供給位置（３９・４０）に移動すると苗収容体（２５）が収容する苗を上下動機構（４）で上動した苗植付け体（５）へ落下供給させる苗落下供給機構（２７）とを備え、一方の落下供給位置（３９）で落下供給する苗を収容する第一の苗収容体（２５ｂ）と他方の落下供給位置（４０）で落下供給する苗を収容する第二の苗収容体（２５ｃ）とを各別に設けて、前記第一及び第二の苗収容体（２５ｂ・２５ｃ）が移動機構（２６）による周回移動で各々の落下供給位置（３９・４０）に到達する構成とした複数条植えの苗植機において、上下の昇降リンク（５２，５３）により上下動機構（４）を構成し、上側の昇降リンク（５２）の回動支点軸（５８）を植付出力軸（５９）に偏心させて設け、植付出力軸（５９）の回転により回動支点軸（５８）が前後に移動して苗植付け体（５）を昇降させながら前後に傾けて側面視ループ状の作動軌跡で上下動させる構成とし、左右苗植付け体（５）を各々各別に移動する植付位置変更機構（６９・７０）を設けると共に、苗落下供給機構（２７）の各落下供給位置（３９・４０）を苗植付け体（５）が最も上動した位置と上昇過程位置とに変更する落下供給位置変更機構（４２ｅ・４２ｆ）を設けたことを特徴とする複数条植え苗植機とした。 In order to solve the above problems, the present invention has taken the following technical means.
In other words, the invention, each provided planting body instill seedlings in the field and moved up and down by vertically moving mechanism (4) to (5) to the right and left, seedling to left and right each planting member (5) according to claim 1 seedling supply device (24), a plurality of seedling accommodating body that accommodates the seedlings (25), successively each planting place seedling container of the plurality of (25) in a loop in a predetermined array pitch body (5) moving mechanism for circular movement so as to pass over the (26), drop feed position seedling container by the moving mechanism (26) (25) is above the planting member (5) ( And a seedling drop supply mechanism (27) for dropping and supplying the seedlings contained in the seedling container (25) to the seedling planting body (5) moved up by the vertical movement mechanism (4 ) when moved to 39.40 ) , first seedling container for accommodating a seedling drop supplying a drop supply position (39) of (25 ) And the second seedling container for accommodating a seedling drop supplied by the other drop-supply position (40) and (25c) provided separately, the first and second seedling container (25b · 25c) is In a multi-row seedling planting machine configured to reach each drop supply position (39, 40 ) by circular movement by the moving mechanism (26) , the vertical moving mechanism (4) is provided by the upper and lower lifting links (52, 53). And the pivot point (58) of the upper lifting link (52) is eccentrically provided on the planting output shaft (59), and the pivot point (58) is rotated by the rotation of the planting output shaft (59). Is moved back and forth, tilted back and forth while raising and lowering the seedling planting body (5), and moved up and down in a side-view loop-like operation locus, and the left and right seedling planting body (5) is moved separately. provided with a change mechanism (69, 70), seedling drop supply mechanism (27) Multiple Conditions Each drop supply position (the 39, 40) characterized by providing planting body (5) is dropped and supplied position changing mechanism that changes to the raised step position as the most upward position (42e-42f) A planting machine was used.

従って、請求項１に記載の複数条植え苗植機は、苗供給装置２４が複数の苗収容体２５をループ状経路で移動機構２６により周回移動させ、苗落下供給機構２７により、第一の苗収容体２５ｂが一方の落下供給位置３９に到達すると苗を下方の苗植付け体５へ落下供給し、第二の苗収容体２５ｃが他方の落下供給位置４０に到達すると苗を下方の苗植付け体５へ落下供給し、左右の苗植付け体５が上下動機構４により所定の作動軌跡で上下動して圃場に苗を植え付ける。そして、植付条間を変更するときは、植付位置変更機構６９・７０により苗収容体２５の周回移動経路に沿って左右の苗植付け体５の互いの間隔を変更するように一方の苗植付け体５を移動すると共に、落下供給位置変更機構４２ｅ（４２ｆ）により一方の落下供給位置３９（４０）を苗植付け体５が上昇過程位置になるように変更して、苗植付け体５が前後に傾きながら昇降することにより、植付条間を変更しても左右苗植付け体５への苗の供給が各々適正に行える。 Therefore, in the multiple-row planting seedling planter according to claim 1, the seedling supply device 24 moves the plurality of seedling containers 25 around the loop path by the moving mechanism 26, and the seedling dropping supply mechanism 27 causes the first When the seedling container 25b reaches one fall supply position 39, the seedling is supplied to the lower seedling planting body 5 by dropping, and when the second seedling container 25c reaches the other fall supply position 40, the seedling is planted downward. The body 5 is dropped and supplied, and the left and right seedling planting bodies 5 are moved up and down by a vertical movement mechanism 4 along a predetermined operation locus to plant seedlings in the farm field. And when changing between planting strips, one seedling so that the mutual spacing of the right and left seedling planting bodies 5 may be changed by the planting position changing mechanisms 69 and 70 along the circular movement path of the seedling container 25. while moving the planting body 5, drop supply position changing mechanism 42e to one drop supply position 39 (40) by (42f) to change so that planting body 5 becomes elevated process position, planting body 5 before and after By raising and lowering while tilting, it is possible to appropriately supply seedlings to the left and right seedling planting bodies 5 even if the spacing between planting lines is changed.

また、請求項２に係る発明は、左右の落下供給位置（３９・４０）の変更に合わせて、第一の植付条間で１条目の落下供給位置（３９）を苗植付け体（５）が最も上動した位置に設定し且つ２条目の落下供給位置（４０）を苗植付け体（５）の上昇過程位置に設定する状態と、第二の植付条間で１条目の落下供給位置（３９）を苗植付け体（５）の上昇過程位置に設定し且つ２条目の落下供給位置（４０）を苗植付け体（５）が最も上動した位置に設定する状態に切替でき、上下動機構（４）の作動に対する苗収容体（２５）の周回位置を変更する周回タイミング変更機構（２９ａ・３６）を設けたことを特徴とする請求項１に記載の複数条植え苗植機とした。 Moreover, the invention which concerns on Claim 2 makes the seedling planting body (5) the fall supply position (39) of the 1st line between 1st planting lines according to the change of the right and left fall supply position (39, 40 ). Is set to the most moved position, and the second drop supply position (40) is set as the ascending process position of the seedling planting body (5) and the first drop supply position between the second planting stripes. (39) can be set to the ascending process position of the seedling planting body (5) and the fall supply position (40) of the second line can be switched to a state where the seedling planting body (5) is set to the most moved position. The multi-row planting seedling planting machine according to claim 1, further comprising a circulation timing changing mechanism (29a, 36) for changing a circulation position of the seedling container (25) with respect to the operation of the mechanism (4) . .

従って、請求項２に記載の複数条植え苗植機は、請求項１に記載の複数条植え苗植機の作用に加えて、左右の落下供給位置３９・４０の変更に合わせて、第一の植付条間で１条目の落下供給位置３９を苗植付け体５が最も上動した位置に設定し且つ２条目の落下供給位置４０を苗植付け体５の上昇過程位置に設定する状態と、第二の植付条間で１条目の落下供給位置３９を苗植付け体５の上昇過程位置に設定し且つ２条目の落下供給位置４０を苗植付け体５が最も上動した位置に設定する状態に切替できる。また、植付条間を変更するとき、周回タイミング変更機構により上下動機構４の作動に対する苗収容体２５の周回位置を変更し、左右の落下供給位置３９・４０の変更に合わせて左右各々の苗植付け体５が上動したときに該苗植付け体５へ落下供給する苗を収容する苗収容体２５が当該落下供給位置３９・４０に到達するようにするため、苗植付け体５が上下動機構４で上動したタイミングで該苗植付け体５へ苗を落下供給することができ、苗植付け体５への苗の供給を適正に行える。
また、請求項３に係る発明は、機体の前端部には畝（Ｕ）に接する状態から接さない状態となることで該畝（Ｕ）の終端を検出する畝終端センサ（８６）を設け、畝終端センサ（８６）による畝の終端の検出に基づいて警報する構成とし、畝終端センサ（８６）は、上下方向に回動する回動アーム（８６ａ）に回転ローラ（８６ｂ）を回転自在に設けた構成とし、回動アーム（８６ａ）の下方への回動を規制する下方回動規制杆を設け、機体の上昇に連動して下方回動規制杆を上動させて畝終端センサ（８６）を上方へ収納する構成とした請求項１又は請求項２に記載の複数条植え苗植機とした。 Therefore, in addition to the action of the multiple-row planting seedling planter according to claim 1, the multiple-row planting planter according to claim 2 is arranged in accordance with the change of the left and right drop supply positions 39 and 40. A state in which the first drop supply position 39 is set to a position where the seedling planting body 5 has moved most up and the second drop supply position 40 is set to a rising process position of the seedling planting body 5 between A state in which the first drop supply position 39 is set as the ascending process position of the seedling planting body 5 and the second drop supply position 40 is set at the position where the seedling planting body 5 has moved up most between the second planting strips. Can be switched to. Further, when changing the spacing between the planting lines, the rotation timing change mechanism changes the rotation position of the seedling container 25 with respect to the operation of the vertical movement mechanism 4, and each of the left and right according to the change of the left and right drop supply positions 39, 40 When the seedling planting body 5 moves up, the seedling planting body 5 moves up and down so that the seedling container 25 that accommodates the seedlings to be dropped and supplied to the seedling planting body 5 reaches the drop supply positions 39 and 40. The seedlings can be dropped and supplied to the seedling planting body 5 at the timing when the mechanism 4 is moved up, and the seedlings can be appropriately supplied to the seedling planting body 5.
According to a third aspect of the present invention, a heel end sensor (86) for detecting the end of the heel (U) is provided at the front end portion of the machine body from the state in contact with the heel (U) to the non-contact state. The heel end sensor (86) is configured to warn based on the detection of the end of the heel by the heel end sensor (86), and the heel end sensor (86) can freely rotate the rotating roller (86b) on a rotating arm (86a) that rotates in the vertical direction. The lower rotation restricting rod that restricts the downward rotation of the rotating arm (86a) is provided, and the lower rotation restricting rod is moved up in conjunction with the rise of the fuselage so that the end sensor ( 86) is a multi-row planting seedling planting machine according to claim 1 or 2, which is configured to be accommodated upward.

よって、落下供給位置変更機構４２ｅ（４２ｆ）により一方の落下供給位置３９（４０）を苗植付け体５が上昇過程位置になるように変更して植付条間を変更しても、苗植付け体５が前後に傾きながら昇降し、且つ苗植付け体５が上昇過程で苗収容体２５ｂ・２５ｃに近づく時に苗植付け体５へ苗が供給されるから、苗植付け体５への苗の供給を適正に行え、苗の植付精度を維持できる。また、苗植付け体５の移動と落下供給位置３９・４０の変更とにより、簡単に植付条間を変更できる。
また、請求項２に係る発明によると、第一の植付条間及び第二の植付条間の何れでも、落下供給位置３９・４０を苗植付け体５が最も上動した位置と上昇過程位置に設定され、苗植付け体５への苗の供給を適正に行え、苗の植付精度を維持できる。
また、請求項３に係る発明によると、畝終端センサ８６による畝の終端の検出に基づいて警報するので、安全に作業が行え、また機体の前方の状況及び畝の終端の位置を気にせずに苗供給装置２４への苗補給作業を集中して行え、植付作業能率が向上する。更に、機体の上昇に連動して畝終端センサ８６を上方へ収納するので、畝終端センサ８６が旋回時の邪魔にならず、旋回が容易に行えると共に、畝終端センサ８６を収納する部材として下方回動規制杆を兼用することにより、機体構成が簡潔となり、安価に構成できる。 Therefore, even if one drop supply position 39 (40) is changed by the drop supply position changing mechanism 42e (42f) so that the seedling planting body 5 is in the ascending process position and the spacing between the planting lines is changed, the seedling planting body Since seedlings are supplied to the seedling planting body 5 when the seedling planting body 5 moves up and down while tilting back and forth, and the seedling planting body 5 approaches the seedling container 25b / 25c in the ascending process, supply of seedlings to the seedling planting body 5 is appropriate. Can maintain the accuracy of seedling planting. Moreover, the distance between planting strips can be easily changed by moving the seedling planting body 5 and changing the drop supply positions 39 and 40.
Moreover, according to the invention which concerns on Claim 2, the position and raising process which the seedling planting body 5 moved up most in the fall supply positions 39 and 40 in any of between the first planting strips and the second planting strips It is set to a position, and it is possible to appropriately supply seedlings to the seedling planting body 5 and maintain seedling planting accuracy.
According to the third aspect of the invention, since the alarm is performed based on the detection of the end of the kite by the kite end sensor 86, the work can be performed safely, and the situation in front of the aircraft and the position of the end of the kite are not minded. In addition, the seedling replenishment work to the seedling supply device 24 can be concentrated and the planting work efficiency is improved. Further, since the heel end sensor 86 is housed upward in conjunction with the rise of the airframe, the heel end sensor 86 does not interfere with the turning and can be easily turned, and the lower portion is used as a member for housing the heel end sensor 86. By also using the rotation restriction rod, the structure of the machine body is simplified and can be configured at low cost.

この発明の実施の一形態の苗植機１を以下に説明する。尚、以下の説明では、操縦ハンドル２を配置した側を後とし、その反対側、即ちエンジン３を配置した側を前とする。そして、機体後部において機体前部側に向って立つ作業者の右手側を右とし、左手側を左とする。   A seedling transplanter 1 according to an embodiment of the present invention will be described below. In the following description, the side on which the steering handle 2 is disposed is the rear, and the opposite side, that is, the side on which the engine 3 is disposed is the front. Then, the right hand side of the worker standing toward the front side of the machine body at the rear part of the machine body is set to the right, and the left hand side is set to the left.

苗植機１は、走行装置と操縦ハンドル２を備えた機体に昇降駆動する上下動機構４と連結して昇降動作する開閉可能なくちばし状の苗植付け体５を備え、走行装置は、転動自在に支持した左右一対の前輪６とエンジン３の動力が伝達されて駆動回転する左右一対の後輪７とを備えている。この前輪６及び後輪７を畝溝に案内して、機体を畝上方で走行することができる。   The seedling planting machine 1 includes a beak-shaped seedling planting body 5 that can be opened and closed and is connected to a vertical movement mechanism 4 that is driven to move up and down to a machine body that includes a traveling device and a steering handle 2. A pair of left and right front wheels 6 that are freely supported and a pair of left and right rear wheels 7 that are driven and rotated by transmission of power from the engine 3 are provided. The front wheel 6 and the rear wheel 7 can be guided to the gutter groove so that the aircraft can travel above the gutter.

エンジン３の後部にはミッションケース８を配置し、そのミッションケース８内にはエンジン３の出力軸が入り込んでおり、エンジン３の出力軸からミッションケース８内の伝動機構にエンジン動力が伝達される構成となっている。ミッションケース８の左右両側部にチェーン伝動ケース９を回動支点９ａを中心に回動自在に取り付け、このチェーン伝動ケース９の回動支点９ａにミッションケース８から左右両外側方に延出させた車輪駆動軸の先端が入り込んでチェーン伝動ケース９内の伝動機構に走行用の動力を伝達している。そして、走行用の動力はチェーン伝動ケース９内の伝動機構を介して機体後方側に伸びてその後端側側方に突出する車軸１０に伝動し、後輪７が駆動回転するようになっている。   A mission case 8 is disposed at the rear of the engine 3, and the output shaft of the engine 3 enters the mission case 8, and engine power is transmitted from the output shaft of the engine 3 to the transmission mechanism in the mission case 8. It has a configuration. A chain transmission case 9 is attached to both left and right sides of the transmission case 8 so as to be rotatable about a rotation fulcrum 9a, and is extended from the transmission case 8 to the left and right outer sides on the rotation fulcrum 9a of the chain transmission case 9. The tip of the wheel drive shaft enters and transmits driving power to the transmission mechanism in the chain transmission case 9. The traveling power is transmitted to the axle 10 that extends to the rear side of the machine body and protrudes to the rear end side via the transmission mechanism in the chain transmission case 9, and the rear wheel 7 is driven to rotate. .

左右水平用油圧式の伸縮作動可能なローリングシリンダ１１が機体の左側に設けられ、該左右水平用ローリングシリンダ１１のピストンロッド先端に上下軸心周りに回動自在に天秤杆１２が取り付けられている。また、天秤杆１２の連結部の右側はロッド１３に連結している。   A horizontal horizontal hydraulic rolling cylinder 11 that can be expanded and contracted is provided on the left side of the fuselage, and a balance rod 12 is attached to the tip of the piston rod of the horizontal horizontal cylinder 11 so as to be rotatable about the vertical axis. . Further, the right side of the connecting portion of the balance rod 12 is connected to the rod 13.

機体中央部に設けられた昇降用油圧シリンダ１４が後述する畝高さ検知センサ１５の検出結果に基づいて、そのピストンロッド１４ａが機体後方に突出すると、ロッド１３や左右水平制御用ローリングシリンダ１１も後方に移動し、前記ロッド１３とローリングシリンダ１１にそれぞれ連結しているアーム１６が機体側面視で後方に回動し、これに伴い左右のチェーン伝動ケース９が回動支点９ａを中心に下方に回動して左右の後輪７が下降し、機体が上昇する。反対に、昇降用油圧シリンダ１４のピストンロッド１４ａが機体前方に引っ込むと、左右の前記アーム１６は前方に回動し、これに伴いチェーン伝動ケース９が回動支点９ａを中心に上方に回動して左右の後輪７が上昇し、機体が下降する。   When the piston rod 14a protrudes rearward of the lifting hydraulic cylinder 14 provided at the center of the machine body based on the detection result of the saddle height detection sensor 15 described later, the rod 13 and the left and right horizontal control rolling cylinder 11 also The arm 16 which moves rearward and is connected to the rod 13 and the rolling cylinder 11 respectively pivots rearward in a side view of the machine body, and accordingly, the left and right chain transmission cases 9 move downwards around the pivoting fulcrum 9a. As a result, the left and right rear wheels 7 are lowered and the fuselage is raised. On the contrary, when the piston rod 14a of the lifting hydraulic cylinder 14 is retracted forward, the left and right arms 16 are rotated forward, and accordingly, the chain transmission case 9 is rotated upward around the rotation fulcrum 9a. As a result, the left and right rear wheels 7 are raised and the aircraft is lowered.

また、前記左右水平制御用ローリングシリンダ１１が伸縮作動すると、左側のチェーン伝動ケース９のみを上下動させて左側の後輪７のみを昇降し、機体を左右に傾斜させる。この左右水平制御用ローリングシリンダ１１は、左右水平に対する機体の左右傾斜を検出するセンサ（図示せず）の検出結果に基づいて機体を左右水平になるように作動する構成にしている。   Further, when the left and right horizontal control rolling cylinder 11 is extended and contracted, only the left chain transmission case 9 is moved up and down, and only the left rear wheel 7 is moved up and down to tilt the machine body to the left and right. The left / right horizontal control rolling cylinder 11 is configured to operate so that the airframe is horizontally horizontal based on a detection result of a sensor (not shown) that detects right / left inclination of the airframe relative to the left / right horizontal.

一対の前輪６は、エンジン３の下方の左右中央位置から左右に延びる前輪支持フレーム１７の左右両側部の下方に延びるアーム部分１８の下端部側方に固定した車軸１９に回転自在に取り付けている。   The pair of front wheels 6 is rotatably attached to an axle 19 fixed to the side of the lower end of an arm portion 18 that extends downward from the left and right sides of the front wheel support frame 17 that extends from the left and right center position below the engine 3 to the left and right. .

操縦ハンドル２は、ミッションケース８に前端部を固定した機体フレーム２０の後端部に取り付けられている。機体フレーム２０は、機体の左右中央に配置されて後方に延び、また、前後中間部から斜め後上方に延びている。操縦ハンドル２は、機体フレーム２０の後端部から左右に後方に延びてその各後端部を操縦ハンドル２のグリップ部２ａ，２ａとしている。操縦ハンドル２の左右のグリップ部２ａ，２ａは、作業者がそのグリップ部２ａ，２ａを楽に手で握れるように適宜高さに設定する。なお、図例ではグリップ部２ａ，２ａを左右に分かれた構成としているが、操縦ハンドル２の左右の後端部を互いに左右に連結してその連結部分をグリップ部２ａとしても良い。   The steering handle 2 is attached to the rear end portion of the body frame 20 whose front end portion is fixed to the mission case 8. The body frame 20 is disposed at the center of the left and right sides of the body and extends rearward, and extends obliquely rearward and upward from the front and rear intermediate portion. The steering handle 2 extends rearward from the rear end portion of the body frame 20 to the left and right, and the rear end portions thereof serve as grip portions 2 a and 2 a of the steering handle 2. The left and right grip portions 2a, 2a of the steering handle 2 are set to an appropriate height so that the operator can easily grip the grip portions 2a, 2a with hands. In the example shown in the figure, the grip portions 2a, 2a are divided into left and right, but the left and right rear end portions of the steering handle 2 may be connected to each other left and right, and the connecting portion may be used as the grip portion 2a.

苗植付け体５作動用の上下動機構４は、ミッションケース８内から苗植付け体５を駆動させる動力を伝動軸２１を介して伝動する伝動機構を内装する植付伝動ケース２２に装着している。植付伝動ケース２２内には苗植付け体上下動機構４を昇降駆動するための動力を伝達する伝動機構を内装している。   The vertical movement mechanism 4 for operating the seedling planting body 5 is mounted on a planting transmission case 22 having a transmission mechanism for transmitting the power for driving the seedling planting body 5 from the transmission case 8 via the transmission shaft 21. . In the planting transmission case 22, a transmission mechanism for transmitting power for driving the seedling planting body vertical movement mechanism 4 to move up and down is provided.

なお、植付伝動ケース２２内の伝動機構には、上下動機構４及び左右一対の苗植付け体５をその昇降動最上位の位置で、又はその近傍位置で設定時間停止させる間欠駆動機構と、上下動機構４及び苗植付け体５の昇降動を停止させるクラッチ機構とを備えている。間欠駆動機構によって停止する時間は、該間欠駆動機構が備える変速機構によって調節され、この調節によって苗植付け体５による苗植付株間が変更調節されるようになっている。   The transmission mechanism in the planting transmission case 22 includes an intermittent drive mechanism that stops the vertical movement mechanism 4 and the pair of left and right seedling planting bodies 5 at the highest position of the vertical movement or at a position near the vertical movement mechanism, And a clutch mechanism that stops the vertical movement mechanism 4 and the seedling planting body 5 from moving up and down. The time for stopping by the intermittent drive mechanism is adjusted by a speed change mechanism provided in the intermittent drive mechanism, and the adjustment between the seedling planting stocks by the seedling planting body 5 is adjusted by this adjustment.

また、苗植付け体５を備える苗植付装置２３に苗を供給する苗供給装置２４は、苗を上方から受け入れて内側に苗を収容する複数（計３２個）の苗収容体となる苗供給カップ２５と、該苗供給カップ２５を苗植付け体５の上方を通過するように周回移動させる移動機構２６と、苗植付け体５の上方位置で苗供給カップ２５の底部を開放して内側に収容した苗を落下させて苗植付け体５に苗を供給する苗落下供給機構となる開放機構２７とを備えている。前記苗供給カップ２５は、上下に開口する筒状体と該筒状体の下側の開口部を開閉する底蓋２５ａとを有し、互いにループ状に連結されている。前記移動機構２６は、機体平面視で左右に長い長円形状のループ状の軌跡で周回動させる構成となっている。前記開放機構２７は、苗供給カップ２５の底蓋２５ａを苗植付け体５の上方位置で開放する構成である。尚、この苗供給装置２４は、二つの苗植付け体５に対して苗供給カップ２５が一回りで周回移動して苗を供給する構成としている。   The seedling supply device 24 that supplies seedlings to the seedling planting device 23 including the seedling planting body 5 receives seedlings from above and stores seedlings as a plurality (32 in total) of seedling containers. The cup 25, a moving mechanism 26 for moving the seedling supply cup 25 so as to pass above the seedling planting body 5, and the bottom portion of the seedling supply cup 25 at the position above the seedling planting body 5 are opened and accommodated inside. An opening mechanism 27 serving as a seedling dropping supply mechanism that drops the seedlings that have been dropped and supplies seedlings to the seedling planting body 5 is provided. The seedling supply cup 25 has a cylindrical body that opens up and down and a bottom lid 25a that opens and closes an opening on the lower side of the cylindrical body, and is connected to each other in a loop shape. The moving mechanism 26 is configured to rotate around an oval loop trajectory that is long to the left and right as viewed from above. The opening mechanism 27 is configured to open the bottom lid 25 a of the seedling supply cup 25 at a position above the seedling planting body 5. The seedling supply device 24 is configured to supply the seedlings by moving the seedling supply cup 25 around the two seedling planting bodies 5 in one round.

前記苗供給カップ２５の外周に円筒外周部を形成し、該円筒外周部に外側から回動自在に係合する係合部（丸孔）を有して二つの苗供給カップ２５を連結する連結体２８を複数設け、該連結体２８の係合部を苗供給カップ２５の円筒外周部に回動自在に係合し該円筒外周部を回動軸として隣の苗供給カップ２５が回動自在に連結する状態として複数の苗供給カップ２５を互いに連結した構成としている。即ち、苗供給カップ２５と連結体２８とで無端チェーンのように連結した構成である。これにより、苗供給カップ２５は、直線的に移動する部分でも円弧状に移動する部分でも隣接する苗供給カップ２５との間隔が変わらないので、苗供給カップ２５から苗植付け体５に苗を供給する個所で苗供給カップ２５が苗植付け体５に対して位置ズレが生じにくくなり苗供給が適正に行われて適確な苗の移植ができる。   A cylindrical outer peripheral portion is formed on the outer periphery of the seedling supply cup 25, and an engagement portion (round hole) that engages with the cylindrical outer periphery in a freely rotatable manner is provided to connect the two seedling supply cups 25. A plurality of bodies 28 are provided, the engaging part of the connecting body 28 is rotatably engaged with the outer peripheral part of the cylinder of the seedling supply cup 25, and the adjacent seedling supply cup 25 is rotatable about the outer peripheral part of the cylinder as a rotation axis. A plurality of seedling supply cups 25 are connected to each other. In other words, the seedling supply cup 25 and the connecting body 28 are connected like an endless chain. As a result, the seedling supply cup 25 supplies the seedlings from the seedling supply cup 25 to the seedling planting body 5 because the distance between the seedling supply cup 25 and the adjacent seedling supply cup 25 does not change regardless of whether the seedling supply cup 25 moves linearly or circularly. Thus, the seedling supply cup 25 is less likely to be displaced with respect to the seedling planting body 5, and the seedling supply is properly performed, so that an accurate seedling can be transplanted.

移動機構２６は、無端チェーンのように互いに連結する苗供給カップ２５を左右に設けた巻掛用のスプロケット２９の外周の円弧状切欠部に係合させて巻き掛け、この左右の巻掛スプロケット２９を植付伝動ケース２２内から取り出した動力で駆動回転することにより、苗供給カップ２５を機体平面視で左回りに周回動させる構成としている。巻掛スプロケット２９を駆動回転可能に取付ける各々の回動軸３０を植付伝動ケース２２から左右に延びる支持フレームに回動可能に取付け、植付伝動ケース２２上部から上方に突出させた出力軸から各々の駆動スプロケット３３、チェン３４及び従動スプロケット３５を介して該従動スプロケット３５と一体回転する前記回動軸３０に伝動する構成としている。尚、従動スプロケット３５と巻掛スプロケット２９とは、ボルト３６により結合され、両者が一体回転する構成となっている。従って、苗供給カップ２５の周回移動経路には、左右各々の半円状の円弧状部分３７と、該円弧状部分３７につながる前後各々の直線状部分３８とを備える。そして、苗供給カップ２５が後側の直線状部分３８において右方へ移動して左右の苗植付け体５の上方を通過するようにしており、該直線状部分３８に苗を苗植付け体５へ落下供給する左右の落下供給位置３９，４０が設定されている。苗供給カップ２５が周回する左右の回動軸３０は、左右の後輪７より機体内側で、且つ、後輪７の車軸１０位置より後側に配置している。また、苗植付け体５は、後輪７の車軸１０位置より後側に配置している。 The moving mechanism 26 wraps the seedling supply cups 25 that are connected to each other like an endless chain by engaging them with arcuate cutouts on the outer periphery of the winding sprocket 29 provided on the left and right sides. Is driven and rotated by the power extracted from the planting transmission case 22 so that the seedling supply cup 25 rotates counterclockwise in plan view of the machine body. From each of the output shafts, each rotary shaft 30 to which the winding sprocket 29 is rotatably attached is attached to a support frame that extends from the planting transmission case 22 to the left and right, and protrudes upward from the upper portion of the planting transmission case 22. The drive sprocket 33, the chain 34, and the driven sprocket 35 are transmitted to the rotating shaft 30 that rotates integrally with the driven sprocket 35. The driven sprocket 35 and the winding sprocket 29 are coupled by a bolt 36 so that both rotate integrally. Therefore, the circumferential movement path of the seedling supply cup 25 includes left and right semicircular arc-shaped portions 37 and front and rear linear portions 38 connected to the arc-shaped portion 37. Then, the seedling supply cup 25 moves to the right in the linear portion 38 on the rear side so as to pass above the right and left seedling planting bodies 5 , and the seedlings are transferred to the seedling planting body 5 in the linear portions 38. Left and right drop supply positions 39 and 40 for drop supply are set. The left and right pivot shafts 30 around which the seedling supply cup 25 circulates are arranged on the inner side of the left and right rear wheels 7 and on the rear side of the axle 10 position of the rear wheels 7. The seedling planting body 5 is arranged on the rear side of the axle 10 position of the rear wheel 7.

前記ボルト３６は、巻掛スプロケット２９に設けたその回転方向に長い円弧状長孔２９ａを通って従動スプロケット３５の螺子孔に下側から螺合している。従って、前記ボルト３６を弛めることにより、従動スプロケット３５と巻掛スプロケット２９との回転位相を、前記円弧状長孔２９ａの範囲内で変更して調節できる構成となっている。尚、前記ボルト３６は１本だけであるので、従動スプロケット３５と巻掛スプロケット２９との回転位相の変更を容易に行える。前記円弧状長孔２９ａによる調節範囲は、巻掛スプロケット２９において苗供給カップ２５の配列ピッチ分（後述する第一及び第二の苗供給カップ２５ｂ，２５ｃの配列ピッチの２分の１分）に設定されている。この円弧状長孔２９ａ及びボルト３６等により、左右の落下供給位置３９，４０の変更に合わせて左右各々の苗植付け体５が上動したときに該苗植付け体５へ落下供給する苗を収容する苗供給カップ２５が当該落下供給位置３９，４０に到達するように上下動機構４の作動に対する苗供給カップ２５の周回位置を変更する周回タイミング変更機構となる。   The bolt 36 is screwed into the screw hole of the driven sprocket 35 from below through an arc-shaped long hole 29a provided in the winding sprocket 29 that is long in the rotational direction. Therefore, by loosening the bolt 36, the rotational phase of the driven sprocket 35 and the winding sprocket 29 can be changed and adjusted within the range of the arc-shaped elongated hole 29a. Since there is only one bolt 36, the rotational phase of the driven sprocket 35 and the winding sprocket 29 can be easily changed. The adjustment range by the arc-shaped elongated hole 29a is the pitch of the seedling supply cup 25 in the winding sprocket 29 (one half of the pitch of the first and second seedling supply cups 25b and 25c described later). Is set. The arcuate long holes 29a, bolts 36, and the like accommodate seedlings that are dropped and supplied to the seedling planting body 5 when the left and right seedling planting bodies 5 are moved upward in accordance with the change of the left and right drop supply positions 39, 40. This is a turning timing changing mechanism for changing the turning position of the seedling supply cup 25 with respect to the operation of the vertical movement mechanism 4 so that the seedling supply cup 25 to be reached reaches the drop supply positions 39 and 40.

複数（計３２個）の苗供給カップ２５は、専ら一方（左側）の落下供給位置３９で落下供給する苗を収容する第一の苗供給カップ２５ｂと、専ら他方（右側）の落下供給位置４０で落下供給する苗を収容する第二の苗供給カップ２５ｃとを、各別に各々計１６個備え、第一の苗供給カップ２５ｂと第二の苗供給カップ２５ｃとが交互に連結された構成となっている。そして、一方の落下供給位置３９に第一の苗供給カップ２５ｂが位置するとき、他方の落下供給位置４０に第二の苗供給カップ２５ｃが位置するように設定している。従って、前記第一及び第二の苗供給カップ２５ｂ，２５ｃは、移動機構２６によりループ状の一経路上で互いに同じ移動量で周回移動するから、移動機構２６による周回移動により各々の落下供給位置３９，４０に同じタイミングで且つ同じ回数到達する構成となっている。そして、左側の苗植付け体５へ落下供給する苗を収容する第一の苗供給カップ２５ｂの底蓋２５ａには、周回方向に対して右側端（周回の外側端）に突起４１を設けている。一方、右側の苗植付け体５へ落下供給する苗を収容する第二の苗供給カップ２５ｃの底蓋２５ａには、周回方向に対して左側端（周回の内側端）に突起４１を設けている。   A plurality (32 in total) of seedling supply cups 25 are exclusively used for the first seedling supply cup 25b that accommodates seedlings to be supplied at one (left side) drop supply position 39, and the other (right side) drop supply position 40 is provided. A total of 16 second seedling supply cups 25c that contain seedlings to be supplied in a separate manner, and the first seedling supply cup 25b and the second seedling supply cup 25c are alternately connected to each other. It has become. And when the 1st seedling supply cup 25b is located in one fall supply position 39, it has set so that the 2nd seedling supply cup 25c may be located in the other fall supply position 40. Accordingly, the first and second seedling supply cups 25b and 25c are moved by the moving mechanism 26 around the looped path with the same amount of movement. 39 and 40 are configured to reach the same number of times at the same timing. Then, the bottom cover 25a of the first seedling supply cup 25b that accommodates the seedling to be supplied to the left seedling planting body 5 is provided with a protrusion 41 at the right end (outer end of the circulation) with respect to the circulation direction. . On the other hand, the bottom lid 25a of the second seedling supply cup 25c that accommodates the seedlings to be dropped and supplied to the right seedling planting body 5 is provided with a protrusion 41 at the left end (inner end of rotation) with respect to the rotation direction. .

開放機構２７は、苗供給カップ２５の周回軌跡下方で底蓋２５ａが下方に回動しないように底蓋２５ａに下方から当接して支持する支持体４２を設け、この支持体４２を苗植付け体５の上方位置には設けないようにすることで、苗植付け体５の上方位置（前記落下供給位置３９，４０）を苗供給カップ２５が通過するとき、底蓋２５ａが支持体４２による支持状態が解かれてその自重及び苗の重力により下方回動し、苗を下方に落下するべく苗供給カップ２５の下部を開放する構成としている。尚、底蓋２５ａの回動支点は苗供給カップ２５の周回下手側部分に設けられ、底蓋２５ａは、苗供給カップ２５の周回上手側から開く構成となっている。   The opening mechanism 27 is provided with a support 42 that supports the bottom cover 25a from below so that the bottom cover 25a does not rotate downward below the orbit of the seedling supply cup 25. The support 42 is a seedling planting body. 5 so that the bottom cover 25a is supported by the support 42 when the seedling supply cup 25 passes through the upper position (the drop supply positions 39, 40) of the seedling planting body 5. Is released and rotated downward by its own weight and the gravity of the seedling, and the lower part of the seedling supply cup 25 is opened so as to drop the seedling downward. In addition, the rotation fulcrum of the bottom cover 25a is provided in the lower rotation side part of the seedling supply cup 25, and the bottom cover 25a is configured to open from the upper rotation side of the seedling supply cup 25.

前記支持体４２は、機体に固定された固定支持体４２ａ，４２ｂ，４２ｃ，４２ｄと、機体に対して位置変更できる移動支持体４２ｅ，４２ｆとからなる。前記固定支持体４２ａ，４２ｂ，４２ｃ，４２ｄは、苗供給カップ２５の周回軌跡における左右の円弧状部分３７並びに前側の直線状部分３８の全域にわたる主固定支持体４２ａと、後側の直線状部分３８の一部に設けた第一、第二並びに第三の副固定支持体４２ｂ，４２ｃ，４２ｄとを備える。これらの主固定支持体４２ａ及び第一、第二並びに第三の副固定支持体４２ｂ，４２ｃ，４２ｄは、棒材で構成されている。前記主固定支持体４２ａは、底蓋２５ａの中央に当接するように苗供給カップ２５の周回軌跡に沿って延設され、第一並びに第二の苗供給カップ２５ｂ，２５ｃの底蓋２５ａを開かないように支持する。第一の副固定支持体４２ｂは、第一の苗供給カップ２５ｂの底蓋２５ａにおいて周回の外側端に設けた突起４１に当接するように苗供給カップ２５の周回軌跡に沿って直線状に設けられ、第一の苗供給カップ２５ｂの底蓋２５ａを開かないように支持する。この第一の副固定支持体４２ｂは、苗供給カップ２５の周回において後側の直線状部分３８の途中から第一の苗供給カップ２５ｂの底蓋２５ａのみを閉じて支持してこの底蓋２５ａの支持を後続の主固定支持体４２ａに引き継ぐように、後側の直線状部分３８の右寄りの位置で且つ主固定支持体４２ａの底蓋周回上手側に設けられている。第二の副固定支持体４２ｃは、第二の苗供給カップ２５ｃの底蓋２５ａの周回の内側端に設けた突起４１に当接するように苗供給カップ２５の周回軌跡に沿って直線状に設けられ、第二の苗供給カップ２５ｃの底蓋２５ａを開かないように支持する。この第二の副固定支持体４２ｃは、苗供給カップ２５の周回において主固定支持体４２ａの底蓋２５ａの支持に引き継いで第二の苗供給カップ２５ｃの底蓋２５ａのみを支持するように、後側の直線状部分３８の左寄りの位置で且つ主固定支持体４２ａの底蓋周回下手側に設けられている。第三の副固定支持体４２ｄは、底蓋２５ａの中央に当接する構成であり、苗供給カップ２５の周回において後側の直線状部分３８の途中から第一の苗供給カップ２５ｂの底蓋２５ａを閉じるべく周回上手側ほど下位となる傾斜部分を備え、該傾斜部分で開いた第一の苗供給カップ２５ｂの底蓋２５ａを上側へ案内しながら閉じる構成となっており、後側の直線状部分３８の略中央の位置で且つ第一の副固定支持体４２ｂの底蓋周回における始端部（左端部）と並行して設けられている。尚、第三の副固定支持体４２ｄの底蓋周回における終端（右端）は、第二の副固定支持体４２ｃの底蓋周回における終端（右端）より底蓋周回における上手側（左側）に位置している。尚、主固定支持体４２ａの底蓋周回における始端部は、第二の苗供給カップ２５ｃの底蓋２５ａを閉じるべく周回上手側ほど下位となる傾斜部分を備え、該傾斜部分で開いた第二の苗供給カップ２５ｃの底蓋２５ａを上側へ案内しながら閉じる構成となっている。   The support body 42 includes fixed support bodies 42a, 42b, 42c, and 42d fixed to the airframe, and movable support bodies 42e and 42f that can change positions relative to the airframe. The fixed support bodies 42a, 42b, 42c, and 42d are a main fixed support body 42a that covers the entire area of the left and right arc-shaped portions 37 and the front linear portion 38 in the circulation locus of the seedling supply cup 25, and a rear linear portion. 38, first, second and third sub-fixing supports 42b, 42c and 42d are provided. The main fixed support 42a and the first, second, and third sub fixed supports 42b, 42c, and 42d are made of bar material. The main fixed support 42a is extended along the circular trajectory of the seedling supply cup 25 so as to contact the center of the bottom cover 25a, and opens the bottom lid 25a of the first and second seedling supply cups 25b and 25c. Support not to be. The first sub-fixing support 42b is provided in a straight line along the circulation locus of the seedling supply cup 25 so as to contact the protrusion 41 provided at the outer end of the rotation in the bottom lid 25a of the first seedling supply cup 25b. The bottom cover 25a of the first seedling supply cup 25b is supported so as not to open. The first sub-fixing support 42b supports the bottom cover 25a by closing and supporting only the bottom cover 25a of the first seedling supply cup 25b from the middle of the rectilinear portion 38 in the circumference of the seedling supply cup 25. Is provided at a position on the right side of the linear portion 38 on the rear side and on the upper side of the bottom lid of the main fixed support 42a so that the subsequent main fixed support 42a is taken over. The second sub-fixing support 42c is provided in a straight line along the circumferential locus of the seedling supply cup 25 so as to contact the protrusion 41 provided on the inner end of the circumference of the bottom lid 25a of the second seedling supply cup 25c. The bottom cover 25a of the second seedling supply cup 25c is supported so as not to open. The second sub-fixing support 42c takes over the support of the bottom cover 25a of the main fixed support 42a in the circumference of the seedling supply cup 25 and supports only the bottom cover 25a of the second seedling supply cup 25c. It is provided at a position on the left side of the linear portion 38 on the rear side and on the lower side of the bottom cover around the main fixed support 42a. The third sub-fixing support 42d is configured to contact the center of the bottom cover 25a, and the bottom cover 25a of the first seedling supply cup 25b from the middle of the linear portion 38 on the rear side in the circumference of the seedling supply cup 25. Is provided with a lower inclined portion toward the upper side of the circuit, and is closed while guiding the bottom lid 25a of the first seedling supply cup 25b opened at the inclined portion to the upper side. It is provided at a substantially central position of the portion 38 and in parallel with the start end (left end) of the first sub-fixing support 42b around the bottom lid. The end (right end) of the third sub-fixing support 42d in the bottom lid circulation is positioned on the upper side (left side) in the bottom lid rotation from the termination (right end) of the second sub-fixing support 42c in the bottom lid rotation. is doing. In addition, the start end part in the bottom cover circulation of the main fixed support 42a is provided with an inclined part that is lower on the upper side of the circulation so as to close the bottom cover 25a of the second seedling supply cup 25c, and is opened at the inclined part. The bottom lid 25a of the seedling supply cup 25c is closed while being guided upward.

尚、第一の副固定支持体４２ｂは、右端を支持フレーム３１から後側の直線状部分３８の右端部に延びる第一支持部材４３に固着して設けられている。また、第二の副固定支持体４２ｃは、左端を支持フレーム３１から後側の直線状部分３８の左端部に延びる第二支持部材４４に固着し、右端部を植付伝動ケース２２から後方に延びる第三支持部材４５に固着して設けられている。また、第三の副固定支持体４２ｄは、前記第三支持部材４５に固着して設けられている。尚、主固定支持体４２ａは、前記第一支持部材４３及び第二支持部材４４の上面に固着して設けられている。   The first sub-fixing support 42b is provided by fixing the right end to a first support member 43 extending from the support frame 31 to the right end of the linear portion 38 on the rear side. The second sub-fixing support 42c is fixed to the second support member 44 extending from the support frame 31 to the left end of the linear portion 38 on the rear side, and the right end is rearward from the planting transmission case 22. The third support member 45 extends and is fixedly provided. The third sub-fixing support 42d is fixedly provided on the third support member 45. The main fixed support 42 a is fixedly provided on the upper surfaces of the first support member 43 and the second support member 44.

前記移動支持体４２ｅ，４２ｆは、後側の直線状部分３８の一部に設けた第一移動支持体４２ｅと第二移動支持体４２ｆとからなる。尚、これらの第一移動支持体４２ｅ及び第二移動支持体４２ｆは、板材で構成される。前記第一移動支持体４２ｅは、第一の苗供給カップ２５ｂの底蓋２５ａにおいて周回の外側端に設けた突起４１に当接するように苗供給カップ２５の周回軌跡に沿って直線状に設けられ、第一の苗供給カップ２５ｂの底蓋２５ａを開かないように支持する構成であり、苗供給カップ２５の周回において主固定支持体４２ａの底蓋２５ａの支持に引き継いで第一の苗供給カップ２５ｂの底蓋２５ａのみを支持するように、後側の直線状部分３８の左寄りの位置で且つ主固定支持体４２ａの底蓋周回下手側に設けられている。この第一移動支持体４２ｅは、第二支持部材４４に設けた左右方向に長い長孔４６を貫通する取付ボルト４７により前記第二支持部材４４に固着して支持され、前記長孔４６により左右方向の取付位置を変更できる構成となっている。尚、前記取付ボルト４７は、苗供給カップ２５の周回域より外側（後側）に位置し、苗供給カップ２５が邪魔にならずに後側から容易に締付又は弛緩させることができる。   The moving supports 42e and 42f are composed of a first moving support 42e and a second moving support 42f provided on a part of the linear portion 38 on the rear side. The first moving support 42e and the second moving support 42f are made of a plate material. The first moving support 42e is provided in a straight line along the orbit of the seedling supply cup 25 so as to contact the protrusion 41 provided on the outer end of the circumference of the bottom lid 25a of the first seedling supply cup 25b. The first seedling supply cup 25b is configured to support the bottom cover 25a of the first seedling supply cup 25b so as not to open, and the first seedling supply cup is taken over by supporting the bottom cover 25a of the main fixed support 42a around the seedling supply cup 25. In order to support only the bottom cover 25a of 25b, it is provided on the left side of the linear portion 38 on the rear side and on the lower side of the bottom cover around the main fixed support 42a. The first moving support body 42e is fixedly supported to the second support member 44 by a mounting bolt 47 penetrating a long hole 46 provided in the second support member 44 in the left-right direction. It is configured to change the mounting position in the direction. The mounting bolt 47 is located on the outer side (rear side) of the surrounding area of the seedling supply cup 25, and can be easily tightened or loosened from the rear side without the seedling supply cup 25 getting in the way.

前記第二移動支持体４２ｆは、第二の苗供給カップ２５ｃの底蓋２５ａの周回の内側端に設けた突起４１に当接するように苗供給カップ２５の周回軌跡に沿う直線状部分を備え、第二の苗供給カップ２５ｃの底蓋２５ａを開かないように支持する構成であり、苗供給カップ２５の周回において第二の副固定支持体４２ｃの底蓋２５ａの支持に引き継いで第二の苗供給カップ２５ｃの底蓋２５ａを支持するように、後側の直線状部分３８の右寄りの位置で且つ主固定支持体４２ａの底蓋周回上手側の端部（周回軌跡における右側の円弧状部分３７の始端部）との間隔を空けて設けられている。この第二移動支持体４２ｆは、該第二移動支持体４２ｆが備える左右方向に長い長孔４８を貫通する取付ボルト４９により前記第三支持部材４２ｄに固着して支持され、前記長孔４８により左右方向の取付位置を変更できる構成となっている。尚、第二移動支持体４２ｆは、長孔４８を設けた位置調整用部分と底蓋２５ａを支持する底蓋支持部分とで２又に分かれた平面視Ｕ字型の形状になっており、この位置調整用部分と底蓋支持部分との間に第二の副固定支持体４２ｃを配置して、該第二の副固定支持体４２ｃに引き継いで確実に底蓋２５ａを支持できる構成としている。また、第二移動支持体４２ｆの取付位置を長孔４８により最も底蓋周回上手側の位置（左端位置）にしたとき、前記底蓋支持部分が第二の副固定支持体４２ｃと第三の副固定支持体４２ｄとの間に位置する構成となっており、これらの第二移動支持体４２ｆ及び第二並びに第三の副固定支持体４２ｃ，４２ｄをコンパクトに配置している。尚、前記取付ボルト４９は、苗供給カップ２５の周回域の内側（前側）に位置し、苗供給カップ２５が邪魔にならずに上方から容易に締付又は弛緩させることができる。尚、苗供給カップ２５の周回域の内側に予備の苗を置くための苗台を構成した場合は、該苗台における前記取付ボルト４９の上方位置に孔を開け、該孔から取付ボルト４９を容易に締付又は弛緩させる構成とすることができる。また、前記孔は、苗台に溜まった水を排水するための水抜き孔と兼用することができる。   The second moving support body 42f includes a linear portion along the circulation locus of the seedling supply cup 25 so as to abut on the protrusion 41 provided on the inner end of the rotation of the bottom lid 25a of the second seedling supply cup 25c, The second seedling supply cup 25c is configured to support the bottom cover 25a so as not to open. In the circumference of the seedling supply cup 25, the second seedling supply cup 25c takes over the support of the bottom cover 25a of the second auxiliary fixed support 42c. At the position on the right side of the linear portion 38 on the rear side so as to support the bottom lid 25a of the supply cup 25c and at the end of the main lid 42a on the upper side of the circumference of the bottom lid (the arc-shaped portion 37 on the right side in the circumferential locus) (Starting end portion) and is provided with a space. The second moving support 42f is fixedly supported on the third support member 42d by a mounting bolt 49 penetrating a long hole 48 that is long in the left-right direction provided in the second moving support 42f, and is supported by the long hole 48. The configuration is such that the mounting position in the left-right direction can be changed. The second moving support 42f has a U-shape in plan view that is divided into two parts: a position adjusting portion provided with a long hole 48 and a bottom lid supporting portion that supports the bottom lid 25a. The second sub-fixing support 42c is disposed between the position adjusting portion and the bottom lid support portion, and the bottom lid 25a can be reliably supported by taking over the second sub-fixing support 42c. . Further, when the mounting position of the second movable support 42f is set to the position (left end position) closest to the bottom cover around the long hole 48, the bottom cover support part is connected to the second sub-fixed support 42c and the third support fixed part 42c. The second moving support 42f and the second and third sub-fixing supports 42c and 42d are arranged in a compact manner. The mounting bolt 49 is located on the inner side (front side) of the surrounding area of the seedling supply cup 25 and can be easily tightened or relaxed from above without the seedling supply cup 25 getting in the way. In addition, when the seedling stand for placing a spare seedling inside the circumference area of the seedling supply cup 25 is configured, a hole is formed at a position above the mounting bolt 49 in the seedling stand, and the mounting bolt 49 is inserted from the hole. It can be configured to be easily tightened or relaxed. Moreover, the said hole can be combined with the drain hole for draining the water collected on the seedling stand.

尚、第一移動支持体４２ｅ及び第二移動支持体４２ｆの位置を変更するための長孔４６，４８及び取付ボルト４７，４９は、各々左右に２個づつ設けられ、第一移動支持体４２ｅ及び第二移動支持体４２ｆを左右真直方向に移動できる構成としている。また、第一移動支持体４２ｅ及び第二移動支持体４２ｆの位置変更量は、前記長孔４６，４８により苗供給カップ２５における配列ピッチ分に規制されており、この規制手段により後述する植付位置の変更で落下供給位置３９，４０を誤った位置に調節しないように構成している。従って、第一の苗供給カップ２５ｂが第一移動支持体４２ｅの底蓋周回下手側の端部（右端部）で該第一の苗供給カップ２５ｂの底蓋２５ａが支持されなくなる位置まで移動すると、第一の苗供給カップ２５ｂの底蓋２５ａが開放される。すなわち、第一移動支持体４２ｅの底蓋周回下手側の端部（右端部）が、第一（左側）の落下供給位置３９となる。また、第二の苗供給カップ２５ｃが第二移動支持体４２ｆの底蓋周回下手側の端部（右端部）で該第二の苗供給カップ２５ｃの底蓋２５ａが支持されなくなる位置まで移動すると、第二の苗供給カップ２５ｃの底蓋２５ａが開放される。すなわち、第二移動支持体４２ｆの底蓋周回下手側の端部（右端部）が、第二（右側）の落下供給位置４０となる。尚、第二の副固定支持体４２ｃにより、周回上手側の第一の落下供給位置３９で第二の苗供給カップ２５ｃの底蓋２５ａが開放しないようにする開放規制手段が構成されている。   Two elongated holes 46 and 48 and two mounting bolts 47 and 49 for changing the positions of the first moving support 42e and the second moving support 42f are provided on the left and right sides, respectively, and the first moving support 42e. In addition, the second moving support 42f is configured to be movable in the left-right straight direction. Further, the amount of position change of the first moving support 42e and the second moving support 42f is regulated by the long holes 46 and 48 to the arrangement pitch in the seedling supply cup 25, and planting which will be described later by this regulating means. The drop supply positions 39 and 40 are not adjusted to an incorrect position by changing the position. Accordingly, when the first seedling supply cup 25b moves to the position where the bottom cover 25a of the first seedling supply cup 25b is not supported at the end (right end) on the lower side of the bottom cover around the first moving support 42e. The bottom lid 25a of the first seedling supply cup 25b is opened. That is, the end (right end) of the first moving support 42e on the lower side around the bottom lid is the first (left side) drop supply position 39. Further, when the second seedling supply cup 25c moves to a position where the bottom cover 25a of the second seedling supply cup 25c is not supported at the end (right end) on the lower side of the bottom cover around the second moving support 42f. The bottom lid 25a of the second seedling supply cup 25c is opened. That is, the end (right end) of the second moving support 42f on the lower side of the bottom lid circulation is the second (right) drop supply position 40. The second sub-fixing support 42c constitutes an opening restricting means for preventing the bottom cover 25a of the second seedling supply cup 25c from being opened at the first drop supply position 39 on the upper side of the circuit.

よって、第一移動支持体４２ｅを長孔４６により最も周回下手側（右側）に位置させ、第二移動支持体４２ｆを長孔４８により最も周回上手側（左側）に位置させると、第一の落下供給位置３９と第二の落下供給位置４０との互いの間隔が最も狭まり、植付条間が最も狭い状態となる。このとき、左右の落下供給位置３９，４０の間隔は、苗供給カップ２５における配列ピッチの３倍すなわち第一及び第二の苗供給カップ２５ｂ，２５ｃにおける配列ピッチの１．５倍となる。逆に、第一移動支持体４２ｅを長孔４６により最も周回上手側（左側）に位置させ、第二移動支持体４２ｆを長孔４８により最も周回下手側（右側）に位置させると、第一の落下供給位置３９と第二の落下供給位置４０との互いの間隔が最も広がり、植付条間が最も広い状態となる。このとき、左右の落下供給位置３９，４０の間隔は、苗供給カップ２５における配列ピッチの５倍すなわち第一及び第二の苗供給カップ２５ｂ，２５ｃにおける配列ピッチの２．５倍となる。従って、各々の落下供給位置３９，４０は苗供給カップ２５における配列ピッチ分だけ位置変更できる構成となっており、左右の落下供給位置３９，４０の互いの間隔が、第一及び第二の苗供給カップ２５ｂ，２５ｃにおける配列ピッチの整数倍（１倍）（苗供給カップ２５における配列ピッチの偶数倍（２倍））の距離分変化するようになっている。   Therefore, when the first moving support 42e is positioned on the most peripheral lower side (right side) by the long hole 46, and the second moving support 42f is positioned on the most peripheral upper side (left side) by the long hole 48, the first The distance between the drop supply position 39 and the second drop supply position 40 is the smallest, and the space between the planting strips is the narrowest. At this time, the interval between the left and right drop supply positions 39, 40 is three times the arrangement pitch in the seedling supply cup 25, that is, 1.5 times the arrangement pitch in the first and second seedling supply cups 25b, 25c. On the other hand, when the first moving support 42e is positioned on the most circumferential upper side (left side) by the long hole 46, and the second moving support 42f is positioned on the most lower rotating side (right side) by the long hole 48, the first The distance between the second drop supply position 39 and the second drop supply position 40 is the largest, and the space between the planting strips is the widest. At this time, the distance between the left and right drop supply positions 39, 40 is 5 times the arrangement pitch in the seedling supply cup 25, that is, 2.5 times the arrangement pitch in the first and second seedling supply cups 25b, 25c. Accordingly, each drop supply position 39, 40 can be changed in position by the arrangement pitch in the seedling supply cup 25, and the distance between the left and right drop supply positions 39, 40 is the first and second seedlings. It changes by the distance of an integral multiple (1 times) of the arrangement pitch in the supply cups 25b, 25c (an even multiple (2 times) of the arrangement pitch in the seedling supply cup 25).

苗植付装置２３は、先端が下方に向かうくちばし状の苗植付け体５と、該苗植付け体５の下端部が圃場面より上方となる位置と圃場面より下方となる位置とに昇降するように苗植付け体５を上下動させる上下動機構４と、くちばし状の苗植付け体５の下端部が閉じて上方から苗を受け入れて内側に苗を収容可能する閉状態と苗植付け体５の下端部が左右に開いて内側に収容した苗を下方に放出可能する開状態とに苗植付け体５を開閉する開閉機構５０を備えている。   The seedling planting device 23 moves up and down between a beak-shaped seedling planting body 5 whose tip is directed downward, and a position where the lower end of the seedling planting body 5 is above the farm scene and a position below the farm scene. A vertical movement mechanism 4 for moving the seedling planting body 5 up and down, a closed state in which the lower end portion of the beak-shaped seedling planting body 5 is closed and a seedling is received from above and a seedling can be accommodated inside, and the lower end of the seedling planting body 5 An opening / closing mechanism 50 for opening and closing the seedling planting body 5 is provided in an open state in which the part opens left and right and the seedling accommodated inside can be released downward.

この苗植機１は、苗植付け体５を左右に設定間隔で複数体並べて配備した複数条植の構成としている。本例では、苗植付け体５を左右に設定間隔で二体並べて配備した二条植えの構成としている。   This seedling planting machine 1 has a configuration of a plurality of row plantings in which a plurality of seedling planting bodies 5 are arranged side by side at set intervals. In this example, it is set as the structure of the two-row planting which arrange | positioned the seedling planting body 5 side by side with the set space | interval at a set interval.

二体の苗植付け体５は、植付伝動ケース２２の左右両側部に設けた上下動機構４に一体づつ装着している。先端が下方に向いたくちばし状の苗植付け体５を左側苗植付け体５Ｌと右側苗植付け体５Ｒとで構成して左右に分割し、後述する開閉機構５０により左側苗植付け体５Ｌと右側苗植付け体５Ｒとが左右方向に回動して下端部を開く構成となっている。尚、左右の苗植付け体５は、上下動機構４及び開閉機構５０により、同期して上下動及び開閉し、圃場に並木状に苗を２条植えする構成となっている。   The two seedling planting bodies 5 are attached integrally to the vertical movement mechanism 4 provided on the left and right side portions of the planting transmission case 22. A beak-like seedling planting body 5 with the tip facing downward is composed of a left seedling planting body 5L and a right seedling planting body 5R, and is divided into left and right parts. The body 5R rotates in the left-right direction to open the lower end. In addition, the right and left seedling planting bodies 5 are configured to vertically move and open and close synchronously by the vertical movement mechanism 4 and the opening / closing mechanism 50, and to plant two seedlings in a row on the farm field.

苗ガイド５１は、苗植付け体５の上方に設けられ、苗供給装置２４から供給された苗を苗植付け体５内に案内する筒状体であり、苗供給装置２４から落下供給される苗を適確に苗植付け体５内に供給することができる。   The seedling guide 51 is a cylindrical body that is provided above the seedling planting body 5 and guides the seedling supplied from the seedling feeding device 24 into the seedling planting body 5. The seedling planting body 5 can be accurately supplied.

苗植付け体５の上下動機構４は、植付伝動ケース２２の左右両側部に設けている。具体的には、植付伝動ケース２２の左右側方に突出させた軸に前部を上下回動自在に装着し後部を苗植付け体５に連結した上側と下側の昇降リンク５２，５３と、植付伝動ケース２２の側部から突出させた駆動回転する駆動軸５４と、該駆動軸５４に一体回転するように取付けた駆動アーム５５と、該駆動アーム５５の回転外周側端部と前記上側の昇降リンク５２とに回動自在に連結する連動アーム５６とで構成している。そして、上側と下側の昇降リンク５２，５３の各後端部（回動先端部）を連結部材５７に回動自在に取付けて連結している。苗植付け体５は、前記連結部材５７に取り付けられている。   The vertical movement mechanism 4 of the seedling planting body 5 is provided on both right and left sides of the planting transmission case 22. Specifically, the upper and lower lift links 52, 53 are connected to the seedling planting body 5 by attaching the front part to the shaft projecting to the left and right sides of the planting transmission case 22 so that the front part can freely rotate up and down. , A drive shaft 54 that rotates from the side of the planting transmission case 22, a drive arm 55 that is attached so as to rotate integrally with the drive shaft 54, a rotation outer peripheral side end portion of the drive arm 55, and the aforementioned An interlocking arm 56 is rotatably connected to the upper lifting link 52. The rear end portions (rotating tip portions) of the upper and lower elevating links 52 and 53 are pivotally attached to and connected to the connecting member 57. The seedling planting body 5 is attached to the connecting member 57.

従って、駆動軸５４の回転により駆動アーム５５が駆動回転すると、昇降リンク５２，５３が上下動して、左右の苗植付け体５が上下動する。この上下動の上昇位置では苗植付け体５の下端部が圃場面より上方に位置し、下降位置では苗植付け体５の下端部が圃場面より下方に位置する。   Therefore, when the drive arm 55 is driven and rotated by the rotation of the drive shaft 54, the elevating links 52 and 53 move up and down, and the left and right seedling planting bodies 5 move up and down. The lower end portion of the seedling planting body 5 is positioned above the field scene at the ascending position of the vertical movement, and the lower end portion of the seedling planting body 5 is positioned below the field scene at the descending position.

また、上側の昇降リンク５２の回動支点軸５８は、植付伝動ケース２２から突出して回転駆動する植付出力軸５９の先端部に該出力軸５９の中心軸心より偏心させた位置に設けられ、該植付出力軸５９の回転によって植付出力軸５９の軸芯を中心として偏心量（回動支点軸５８と植付出力軸５９の軸芯との間隔）を半径として回転しながら移動する構成とし、上側の昇降リンク５２の上下動中に回動支点軸５８が前後に移動することにより、苗植付け体５をその昇降動中に前後に傾け、苗植付け体５を側面視ループ状の作動軌跡で上下動させる構成となっている。   Further, the rotation fulcrum shaft 58 of the upper elevating link 52 is provided at a position that is eccentric from the center axis of the output shaft 59 at the tip of the planting output shaft 59 that projects from the planting transmission case 22 and rotates. The rotation of the planting output shaft 59 moves around the axis of the planting output shaft 59 while rotating with an eccentric amount (the distance between the pivot fulcrum shaft 58 and the axis of the planting output shaft 59) as a radius. When the upper fulcrum shaft 58 moves up and down during the up-and-down movement of the upper elevating link 52, the seedling planting body 5 is tilted back and forth during the up-and-down movement, and the seedling planting body 5 is looped in a side view. It is configured to move up and down along the operating locus.

次に、苗植付け体５の開閉機構５０について説明する。左側苗植付け体５Ｌの上部に設けた左側開閉用アーム部６０の先端部に開閉用ケーブル６１のインナーワイヤ６１ａの端部を連結し、右側苗植付け体５Ｒの上部に設けた右側開閉用アーム部６２の先端部に開閉用ケーブル６１のアウターケーブル６１ｂの端部を連結し、下側の昇降リンク５３の基部を枢着している回動支点軸６３に回動自在に取付けた作動アーム６４を設け、この作動アーム６４の先端部に前記開閉用ケーブル６１のインナーワイヤ６１ａの他端を連結し、機体側に開閉用ケーブル６１のアウターケーブル６１ｂの他端を固定して取り付けている。尚、図５は左側の苗植付装置２３を示すものであり、右側の苗植付装置２３においては、左側の苗植付装置２３と左右対称であるので、左側開閉用アーム部の先端部に開閉用ケーブルのアウターケーブルの端部を連結し、右側開閉用アーム部の先端部に開閉用ケーブルのインナーワイヤの端部を連結した構成となっている。そして、作動アーム６４が、上側の昇降リンク５２の基部を枢着している回動支点軸５８を回転移動させる植付出力軸５９と一体回転するよう取付けたカムの作用を受けて、設定したタイミングで前側に回動する構成としている。これにより、駆動軸５４の駆動回転により苗植付け体５が上下動して下降下端位置に達すると、カムの作用位置の変化により作動アーム６４が前側に回動し、開閉用ケーブル６１のアウターケーブル６１ｂに対してインナーワイヤ６１ａが右側に引かれて左側開閉用アーム部６０と右側開閉用アーム部６２とが互いに近づくように回動し、右側苗植付け体５Ｒが右方に回動し、これに連動して左側苗植付け体５Ｌが左方に回動して、苗植付け体５の下部側が左右に開いて下方に開放状態となる。そして、苗植付け体５が上昇してカムの作用位置の変化により作動アーム６４が苗植付け体５に対して元の位置（後側）に回動して開閉用ケーブル６１のインナーワイヤ６１ａが弛められ、左右に開いた苗植付け体５の下部が閉じる。これにより、苗植付け体５の開閉を開閉用ケーブル６１で行う構成としたので、従来のロッドあるいはリンクによる開閉機構と比較して、開閉用ケーブル６１の連結の自由度が高いため、前後に作動する作動アーム６４により左側苗植付け体５Ｌ及び右側苗植付け体５Ｒを異なる方向（左右方向）に回動させることができると共に、作動アーム６４の少量の作動量で苗植付け体５の所望の開閉量を得る構成とすることができる。尚、左側苗植付け体５Ｌと右側苗植付け体５Ｒとは、スプリング６５により苗植付け体５の下部が閉じる側へ回動付勢されている。 Next, the opening / closing mechanism 50 of the seedling planting body 5 will be described. The end of the inner wire 61a of the opening / closing cable 61 is connected to the tip of the left opening / closing arm 60 provided on the left seedling planting body 5L, and the right opening / closing arm is provided on the right seedling planting body 5R. An end of the outer cable 61b of the opening / closing cable 61 is connected to the distal end of 62, and an operating arm 64 rotatably attached to a rotation fulcrum shaft 63 pivotally attached to the base of the lower lift link 53 is provided. The other end of the inner wire 61a of the opening / closing cable 61 is connected to the distal end of the operating arm 64, and the other end of the outer cable 61b of the opening / closing cable 61 is fixedly attached to the machine body side. FIG. 5 shows the left seedling planting device 23, and the right seedling planting device 23 is symmetrical with the left seedling planting device 23, so that the front end portion of the left opening / closing arm portion is shown. The end portion of the outer cable of the opening / closing cable is connected to the end portion, and the end portion of the inner wire of the opening / closing cable is connected to the tip portion of the right opening / closing arm portion. Then, the operating arm 64 is set by receiving the action of a cam attached so as to rotate integrally with a planting output shaft 59 that rotates and moves a rotation fulcrum shaft 58 pivotally attached to the base of the upper lift link 52. It is set as the structure rotated to the front side at timing. As a result, when the seedling planting body 5 moves up and down by the drive rotation of the drive shaft 54 and reaches the lowered lower end position, the operating arm 64 is rotated forward by the change of the operating position of the cam, and the outer cable of the opening / closing cable 61 The inner wire 61a is pulled to the right with respect to 61b and the left opening / closing arm 60 and the right opening / closing arm 62 rotate so as to approach each other, and the right seedling planting body 5R rotates to the right. The left seedling planting body 5L is rotated to the left in conjunction with the above, and the lower side of the seedling planting body 5 opens to the left and right, and opens downward. Then, the seedling planting body 5 rises and the operating arm 64 rotates to the original position (rear side) with respect to the seedling planting body 5 due to the change of the cam action position, so that the inner wire 61a of the opening / closing cable 61 is loosened. The lower part of the seedling planting body 5 opened to the left and right is closed. Thus, since the seedling planting body 5 is configured to be opened and closed by the opening / closing cable 61, the opening / closing cable 61 has a higher degree of freedom of connection than the conventional opening / closing mechanism using a rod or link, and therefore operates forward and backward. The actuating arm 64 can rotate the left seedling planting body 5L and the right seedling planting body 5R in different directions (left and right directions), and a desired opening / closing amount of the seedling planting body 5 with a small amount of actuation of the actuation arm 64 Can be obtained. Note that the left seedling planting body 5 </ b> L and the right seedling planting body 5 </ b> R are urged to rotate by the spring 65 toward the side where the lower portion of the seedling planting body 5 is closed.

上下動機構４の上下の昇降リンク５２，５３における各々の回動先端部（後端部）は、上下各々の連結軸６６，６７を介して連結部材５７に連結されている。前記連結部材５７は、側面視三角形状のプレート６８を左右に備え、この左右のプレート６８で上下の昇降リンク５２，５３の先端部を挟んだ構成となっており、後部には左右のプレート６８にまたがる左右方向のボス６９を設けている。尚、側面視で前記プレート６８の三角形状の各頂点付近に前記連結軸６６，６７及びボス６９を配置しており、上下の連結軸６６，６７よりボス６９を後側に配置しているので、ボス６９に対して後述の位置調節軸７０をスライドさせるときに上下の連結軸６６，６７や上下の昇降リンク５２，５３が邪魔にならないようにしている。尚、左右のプレート６８は略正三角形状であり、上下の連結軸６６，６７部分を上下逆にして連結部材５７を取り付けてもいいように構成している。前記ボス６９のボス孔は、六角形状（多角形状）になっている。一方、苗植付け体５の基部には、左右方向に延びる六角形状（多角形状）の位置調節軸７０を固着して設けている。従って、前記ボス６９に位置調節軸７０が挿入されて連結部材５７に苗植付け体５が支持され、ボス６９に対して位置調節軸７０を摺動させて左右方向に移動させることにより、苗植付け体５の左右位置を変更できる構成となっている。この苗植付け体５の左右位置の変更は、落下供給位置３９，４０の変更に合わせて該落下供給位置３９，４０の下方に苗植付け体５が位置するよう苗供給カップ２５における配列ピッチ分の距離を変更できるように、位置調節軸７０の長さが設定されている。すなわち、左右の苗植付け体５の互いの間隔を第一及び第二の苗供給カップ２５ｂ，２５ｃにおける配列ピッチの整数倍（１倍）分変化させることができ、ボス６９及び位置調節軸７０等により苗植付け体５を移動できる植付位置変更機構が構成されている。尚、位置調節軸７０は、ボス６９に設けたセットボルト７１によりボス６９に対して左右移動しないように固定でき、左右に移動させるときは前記セットボルト７１を弛めて移動させる構成となっている。このセットボルト７１は、ボス６９及び位置調節軸７０の後側に設けられ、後側から昇降リンク５２，５３が邪魔にならずに容易に締付又は弛緩できる。また、位置調節軸７０の断面の六角形状（多角形状）の対向する頂点が上下に位置するようにしており、上下方向の曲げに対する断面係数が向上するので、この位置調節軸７０で苗植付け体５を片持ち支持するのに必要な強度を得ることができる。また、位置調節軸７０の適宜位置の外周には苗植付け体５の左右位置の目安となる溝７２を３箇所設け、該溝７２をボス６９の端に揃えることにより通常条間（３２０ｍｍ）と狭い植付条間時（３００ｍｍ）と広い植付条間時（３５０ｍｍ）との苗植付け体５の左右位置に調節できるようにしており、苗植付け体５の位置変更を容易に行える構成としている。   Respective rotation front end portions (rear end portions) of the upper and lower lift links 52 and 53 of the vertical movement mechanism 4 are connected to a connection member 57 via upper and lower connection shafts 66 and 67, respectively. The connecting member 57 includes a plate 68 that is triangular in a side view on the left and right sides, and the left and right plates 68 sandwich the tip ends of the upper and lower elevating links 52 and 53. A boss 69 extending in the left-right direction is provided. In addition, the connecting shafts 66 and 67 and the boss 69 are arranged in the vicinity of each triangular apex of the plate 68 in a side view, and the boss 69 is arranged on the rear side of the upper and lower connecting shafts 66 and 67. The upper and lower connecting shafts 66 and 67 and the upper and lower elevating links 52 and 53 do not get in the way when a position adjusting shaft 70 described later is slid with respect to the boss 69. The left and right plates 68 are substantially equilateral triangles, and the upper and lower connecting shafts 66 and 67 are turned upside down so that the connecting member 57 can be attached. The boss hole of the boss 69 has a hexagonal shape (polygonal shape). On the other hand, a hexagonal (polygonal) position adjusting shaft 70 extending in the left-right direction is fixedly provided at the base of the seedling planting body 5. Accordingly, the position adjusting shaft 70 is inserted into the boss 69, the seedling planting body 5 is supported by the connecting member 57, and the position adjusting shaft 70 is slid with respect to the boss 69 and moved in the left-right direction. The left and right positions of the body 5 can be changed. The change in the left and right position of the seedling planting body 5 is equivalent to the arrangement pitch in the seedling supply cup 25 so that the seedling planting body 5 is positioned below the drop supply positions 39 and 40 in accordance with the change of the drop supply positions 39 and 40. The length of the position adjusting shaft 70 is set so that the distance can be changed. That is, the interval between the left and right seedling planting bodies 5 can be changed by an integral multiple (1) of the arrangement pitch in the first and second seedling supply cups 25b, 25c, and the boss 69, the position adjusting shaft 70, etc. The planting position change mechanism which can move the seedling planting body 5 is comprised. The position adjusting shaft 70 can be fixed so as not to move left and right with respect to the boss 69 by a set bolt 71 provided on the boss 69. When the position adjusting shaft 70 is moved left and right, the set bolt 71 is loosened and moved. Yes. The set bolt 71 is provided on the rear side of the boss 69 and the position adjusting shaft 70, and can be easily tightened or loosened from the rear side without the lifting links 52 and 53 being in the way. In addition, the opposing vertex of the hexagonal shape (polygonal shape) of the cross section of the position adjusting shaft 70 is positioned vertically, and the section coefficient for bending in the vertical direction is improved. The strength required to support the cantilever 5 can be obtained. Further, three grooves 72 serving as a guide for the left and right positions of the seedling planting body 5 are provided on the outer periphery of the position adjusting shaft 70 at an appropriate position, and the groove 72 is aligned with the end of the boss 69 so that the normal gap (320 mm) is obtained. It is configured so that it can be adjusted to the left and right positions of the seedling planting body 5 between the narrow planting strip (300 mm) and the wide planting strip (350 mm), and the position of the seedling planting body 5 can be easily changed. .

そして、上下動機構４により苗植付け体５の上下動が一周期動作する間に、第一及び第二の苗供給カップ２５ｂ，２５ｃは各々における配列ピッチ分（一列状の苗供給カップ２５の２個分：隣接するカップ２５の中心間の距離が８０ｍｍにしているので、１６０ｍｍ）周回移動する。そして、通常条間（３２０ｍｍ）では、落下供給位置３９，４０で苗供給カップ２５の底蓋２５ａが開くタイミングを苗植付け体５が苗供給カップ２５の直下まで最上昇したときとなるように設定している（条間が３２０ｍｍの場合、左右苗植付け体５の上下動が一周期動作する間の各苗供給カップ２５ｂ，２５ｃの移動ピッチ１６０ｍｍの倍数であるから、常に、落下供給位置３９，４０で苗供給カップ２５の底蓋２５ａが開くタイミングを苗植付け体５が苗供給カップ２５の直下まで最上昇したときに設定できる。）。この時、左側の１条目の落下供給位置３９を決定する第一移動支持体４２ｅは，条間３２０ｍｍと刻印した位置に第二支持部材４４の右端部に合わせた位置に設定し、右側の２条目の落下供給位置４０を決定する第二移動支持体４２ｆは，条間３２０ｍｍと刻印した位置に第三支持部材４２ｄの右端部に合わせた位置に設定している。これにより、苗供給カップ２５が二つの苗植付け体５の上方を直列的に通過しながら二つの苗植付け体５に対して苗供給漏れが生じることなく同時に苗を供給でき、且つ、二つの苗植付け体５の上方を通過した後に苗が供給されなかった苗供給カップ２５が生じないよう余すことなく二つの苗植付け体５に対して苗を供給できるものとなり、苗供給作業が余裕をもって行え、且つ、二つの苗植付け体５に対して確実に苗を供給できる。   Then, while the vertical movement of the seedling planting body 5 is performed for one cycle by the vertical movement mechanism 4, the first and second seedling supply cups 25 b and 25 c are arranged for each arrangement pitch (2 of the seedling supply cup 25 in a row). Pieces: Since the distance between the centers of the adjacent cups 25 is 80 mm, it moves around 160 mm). In the normal interval (320 mm), the timing at which the bottom cover 25a of the seedling supply cup 25 opens at the drop supply positions 39 and 40 is set to be when the seedling planting body 5 rises up to the position immediately below the seedling supply cup 25. (If the interval is 320 mm, the vertical movement of the right and left seedling planting body 5 is a multiple of the moving pitch 160 mm of each seedling supply cup 25b, 25c during one cycle operation. 40, the timing at which the bottom cover 25a of the seedling supply cup 25 is opened can be set when the seedling planting body 5 has risen up to the position immediately below the seedling supply cup 25.) At this time, the first moving support body 42e that determines the first drop supply position 39 on the left side is set to a position that is aligned with the right end of the second support member 44 at a position marked with an interval of 320 mm. The second moving support 42f that determines the drop supply position 40 of the line is set at a position that is aligned with the right end of the third support member 42d at a position marked as 320 mm between the lines. Thereby, the seedling supply cup 25 can supply the seedlings simultaneously without passing the seedling supply leakage to the two seedling planting bodies 5 while passing through the upper part of the two seedling planting bodies 5 in series. It will be possible to supply seedlings to the two seedling planting bodies 5 without leaving a seedling supply cup 25 that has not been supplied with seedlings after passing over the planting body 5, and the seedling supply operation can be performed with a margin, In addition, seedlings can be reliably supplied to the two seedling planting bodies 5.

また、狭い植付条間時（３００ｍｍ）に苗植付け体５の左右位置を調節した場合は、条間３００ｍｍは苗供給カップ２５ｂ，２５ｃの移動ピッチ１６０ｍｍの倍数ではなくなるので、落下供給位置３９，４０で左右両方の苗供給カップ２５の底蓋２５ａが開くタイミングを苗植付け体５が苗供給カップ２５の直下まで最上昇したときに設定することができなくなる。そこで、左側の１条目の落下供給位置３９を決定する第一移動支持体４２ｅは，条間３２０ｍｍと刻印した位置に第二支持部材４４の右端部に合わせた位置に設定したままとし、右側の２条目の落下供給位置４０を決定する第二移動支持体４２ｆを条間３００ｍｍと刻印した位置に第三支持部材４２ｄの右端部に合わせた位置に設定して、苗供給カップ２５ｃの底蓋２５ａが開くタイミングを少し早くし、苗植付け体５が最上昇位置に上昇する手前とする。このようにすると、左側の１条目の落下供給位置３９では、苗供給カップ２５ｂの底蓋２５ａが開くタイミングを苗植付け体５が苗供給カップ２５の直下まで最上昇したときに設定しているので、苗植付け体５に対して苗を適切に供給でき、右側の２条目の落下供給位置４０では、苗供給カップ２５ｃの底蓋２５ａが開くタイミングを苗植付け体５が苗供給カップ２５ｃに対して最上昇に上昇する直前の過程に設定しているので、即ち、苗植付け体５が上昇過程で苗供給カップ２５ｃに近づく時に底蓋２５ａが開くから苗植付け体５に対して苗を適切に供給できる（逆に、苗植付け体５が下降過程で苗供給カップ２５ｃから離れる時に底蓋２５ａが開くと、苗植付け体５に対して苗を供給することは困難となり、苗の植付けができない場合があり欠株となって適正な苗の移植作業はできない）。   Further, when the right and left position of the seedling planting body 5 is adjusted during the narrow planting strip interval (300 mm), the strip spacing 300 mm is not a multiple of the moving pitch 160 mm of the seedling supply cups 25b and 25c. The timing at which the bottom lids 25 a of both the right and left seedling supply cups 25 open at 40 cannot be set when the seedling planting body 5 has risen to the maximum immediately below the seedling supply cup 25. Accordingly, the first moving support 42e that determines the first drop supply position 39 on the left side is left at the position marked with the right end of the second support member 44 at the position marked with 320 mm between the stripes. The second moving support 42f that determines the second drop supply position 40 is set to a position that is aligned with the right end of the third support member 42d at a position marked as 300 mm between the stripes, and the bottom cover 25a of the seedling supply cup 25c is set. The timing at which the seedlings are opened is a little earlier, and the seedling planting body 5 is in a position before it rises to the highest position. In this way, at the first drop supply position 39 on the left side, the timing at which the bottom cover 25a of the seedling supply cup 25b opens is set when the seedling planting body 5 has risen up to the position directly below the seedling supply cup 25. The seedling planting body 5 can properly supply the seedling planting body 5, and the seedling planting body 5 is ready for the seedling feeding cup 25 c at the timing when the bottom lid 25 a of the seedling feeding cup 25 c opens at the second drop supply position 40 on the right side. Since it is set to the process immediately before rising to the highest level, that is, when the seedling planting body 5 approaches the seedling supply cup 25c in the ascending process, the bottom lid 25a opens, so that seedlings are appropriately supplied to the seedling planting body 5. (On the contrary, if the bottom cover 25a is opened when the seedling planting body 5 moves away from the seedling supply cup 25c in the descending process, it may be difficult to supply seedlings to the seedling planting body 5, and seedlings may not be planted. Can not porting of appropriate seedlings become Riketsukabu).

また、広い植付条間時（３５０ｍｍ）に苗植付け体５の左右位置を調節した場合は、条間３５０ｍｍも苗供給カップ２５ｂ，２５ｃの移動ピッチ１６０ｍｍの倍数ではなくなるので、落下供給位置３９，４０で左右両方の苗供給カップ２５の底蓋２５ａが開くタイミングを苗植付け体５が苗供給カップ２５の直下まで最上昇したときに設定することができなくなる。そこで、右側の２条目の落下供給位置４０を決定する第二移動支持体４２ｆは，条間３２０ｍｍと刻印した位置に第三支持部材４２ｄの右端部に合わせた位置に設定したままとし、左側の１条目の落下供給位置３９を決定する第一移動支持体４２ｅを条間３５０ｍｍと刻印した位置に第二支持部材４４の右端部に合わせた位置に設定して、苗供給カップ２５ｂの底蓋２５ａが開くタイミングを少し早くし、苗植付け体５が最上昇位置に上昇する手前とする。このようにすると、右側の２条目の落下供給位置４０では、苗供給カップ２５ｃの底蓋２５ａが開くタイミングを苗植付け体５が苗供給カップ２５の直下まで最上昇したときに設定しているので、苗植付け体５に対して苗を適切に供給でき、左側の１条目の落下供給位置３９では、苗供給カップ２５ｂの底蓋２５ａが開くタイミングを苗植付け体５が苗供給カップ２５ｂに対して最上昇に上昇する直前の過程に設定しているので、即ち、苗植付け体５が上昇過程で苗供給カップ２５ｂに近づく時に底蓋２５ａが開くから苗植付け体５に対して苗を適切に供給できる。   In addition, when the left and right position of the seedling planting body 5 is adjusted during a wide planting strip interval (350 mm), the strip spacing 350 mm is not a multiple of the moving pitch 160 mm of the seedling supply cups 25b and 25c. The timing at which the bottom lids 25 a of both the right and left seedling supply cups 25 open at 40 cannot be set when the seedling planting body 5 has risen to the maximum immediately below the seedling supply cup 25. Therefore, the second moving support 42f that determines the right second drop supply position 40 is left set at the position marked with a spacing of 320 mm and aligned with the right end of the third support member 42d. The first moving support 42e that determines the first drop supply position 39 is set to a position that is aligned with the right end of the second support member 44 at a position marked with an interval of 350 mm, and the bottom cover 25a of the seedling supply cup 25b is set. The timing at which the seedlings are opened is a little earlier, and the seedling planting body 5 is in a position before it rises to the highest position. In this way, at the second drop supply position 40 on the right side, the timing at which the bottom cover 25a of the seedling supply cup 25c opens is set when the seedling planting body 5 has risen to the level immediately below the seedling supply cup 25. The seedling planting body 5 can properly supply the seedling planting body 5, and at the first drop supply position 39 on the left side, the seedling planting body 5 is ready to open the bottom cover 25a of the seedling feeding cup 25b with respect to the seedling feeding cup 25b. Since it is set to the process immediately before rising to the highest level, that is, when the seedling planting body 5 approaches the seedling supply cup 25b in the ascending process, the bottom lid 25a opens, so that seedlings are appropriately supplied to the seedling planting body 5. it can.

よって、植付条間を変更しても、苗植付け体５への苗の供給を適正に行え、苗の植付精度を維持できる。また、苗植付け体５の左右方向移動と落下供給位置３９，４０の変更とにより、簡単に植付条間を変更できる。特に、植付条間を変更しても、左右の落下供給位置３９，４０の変更を第一移動支持体４２ｅ及び第二移動支持体４２ｆの位置変更という簡単な構成で行え、更に周回タイミング変更機構による苗収容体２５の周回位置（位相）の変更を従動スプロケット３５に対する巻掛スプロケット２９の回転位相の変更という簡単な構成でチェン３４及び苗供給カップ２５の巻回を外さずに行え、植付条間の変更が容易になる。尚、苗植付け体５及び鎮圧輪７３の位置変更は、位置調節軸７０及び左右支持軸７６の可動部分をスライドさせるだけなので、容易に行える。   Therefore, even if the spacing between the planting lines is changed, the seedling can be properly supplied to the seedling planting body 5 and the planting accuracy of the seedling can be maintained. Further, the spacing between the planting strips can be easily changed by moving the seedling planting body 5 in the left-right direction and changing the drop supply positions 39 and 40. In particular, even if the spacing between the planting strips is changed, the left and right drop supply positions 39 and 40 can be changed with a simple configuration of changing the positions of the first moving support 42e and the second moving support 42f, and the rotation timing can be changed. The rotation position (phase) of the seedling container 25 by the mechanism can be changed without changing the rotation of the chain 34 and the seedling supply cup 25 with a simple configuration of changing the rotational phase of the winding sprocket 29 relative to the driven sprocket 35. It becomes easy to change between clauses. It should be noted that changing the positions of the seedling planting body 5 and the pressure-reducing wheel 73 is easy because the movable parts of the position adjusting shaft 70 and the left and right support shafts 76 are simply slid.

また、植え付けた苗の周辺に覆土しながら苗の周辺の土壌を鎮圧する左右の鎮圧輪７３，７３は、図面に示すように、左右の苗植付け体５のすぐ後ろ側にそれぞれ配置して設け、畝の上に植終わった苗の根元を左右両側から鎮圧して根つきを促進する。機体フレーム２０に横向きに設けたロック軸７４ａに上下に挿し通したロット７４ｂの下部に軸架した構成としている。そして、前記ロック軸７４ａは、下部に鎮圧輪７３を有する２本のロット７４ｂを上下に貫通させているが、上下に自由に移動（摺動）できる状態と鎮圧輪７３を上動させて収納した位置に固定する状態とに切替できる構成にしている。   Also, the left and right pressure-reducing wheels 73 and 73 for crushing the soil around the seedling while covering the area around the planted seedling are arranged and provided immediately behind the right and left seedling planting bodies 5, as shown in the drawing. The roots of the seedlings that have been planted on the bushes are crushed from both the left and right sides to promote rooting. It is configured such that it is pivotally mounted on the lower portion of a lot 74b that is inserted vertically into a lock shaft 74a that is provided laterally on the machine body frame 20. The lock shaft 74a vertically penetrates the two lots 74b having the pressure-reducing wheel 73 in the lower part. The lock shaft 74a is housed by moving the pressure-reducing wheel 73 upward and in a state where it can freely move (slide) up and down. It can be switched to a state where it is fixed at the position.

即ち、図１の実線の状態で、左右ロット７４ｂ，７４ｂは自由にロック軸７４ａの貫通孔内を上下移動できるので、左右の鎮圧輪７３，７３は上下に自由に移動する。そして、左右ロット７４ｂ，７４ｂには、その中途部に切り溝（軸径を細くした部位）７４ｃ，７４ｃを設け、左右ロット７４ｂ，７４ｂの上端部に握り部７４ｄ，７４ｄを設けている。従って、作業者が握り部７４ｄを握ってロット７４ｂを上方に引き上げると、ロット７４ｂはロック軸７４ａの貫通孔内を上方に移動して、鎮圧輪７３は上方に移動し収納位置になる。その時、ロット７４ｂの切り溝７４ｃをロック軸７４ａの貫通孔の上端部に引っ掛けることによって、ロット７４ｂは上方位置で係止されて下方に落下しないように固定された状態となり、鎮圧輪７３を機体旋回時等に上方に収納することができる。尚、機体旋回時等には、作業者は左右ロット７４ｂ，７４ｂ両方共上方に引き上げて、左右の鎮圧輪７３，７３を上方に収納すると、機体後方を下げて左右前輪６，６を圃場面から浮かせて旋回することができ、旋回が容易に行なえる。また、左右ロット７４ｂ，７４ｂを共に上方に引き上げる操作部材を設けて、該操作部材にて左右の鎮圧輪７３，７３を一緒に上方に収納できる構成とすれば、更に、旋回時の作業性が良くなる。   That is, in the state of the solid line in FIG. 1, the left and right lots 74b and 74b can freely move up and down in the through hole of the lock shaft 74a, so that the left and right pressure reducing wheels 73 and 73 freely move up and down. The left and right lots 74b and 74b are provided with kerfs (parts with a reduced shaft diameter) 74c and 74c in the middle thereof, and grip portions 74d and 74d are provided at the upper ends of the left and right lots 74b and 74b. Therefore, when the operator grasps the grip portion 74d and pulls the lot 74b upward, the lot 74b moves upward in the through hole of the lock shaft 74a, and the pressure reducing wheel 73 moves upward to the storage position. At that time, the slit 74c of the lot 74b is hooked on the upper end portion of the through hole of the lock shaft 74a, so that the lot 74b is locked at the upper position and fixed so as not to fall downward. It can be stored upwards when turning. When turning the aircraft, the operator pulls both the left and right lots 74b, 74b upward and stores the left and right pressure-reducing wheels 73, 73 upward. It can be swung from the top and can be turned easily. Further, if an operation member for pulling up both the left and right lots 74b and 74b is provided so that the left and right pressure-reducing wheels 73 and 73 can be accommodated together by the operation member, the workability at the time of turning is further improved. Get better.

また、ボンネット７８の上方に苗供給装置２４側に向くべく後向きの座席７９を設け、苗供給装置２４との間に足を乗せる平面状のステップ８０を設けている。前記座席２３は、ボンネット７８の左右一方側（右側）を通って上方に延びる支持フレーム８１を介して機体に支持されている。この支持フレーム８１に円筒形のパラソル支持部材を設けて、該円筒形のパラソル支持部材に日除け用のパラソルや傘を挿して固定し、座席７９に座った作業者に日差しや雨があたらないようにして、作業環境を良くすることができる。 Further, a seat 79 facing backward is provided above the bonnet 78 so as to face the seedling supply device 24 side, and a flat step 80 for placing a foot between the seedling supply device 24 is provided. The seat 23 is supported by the airframe via a support frame 81 that extends upward through one of the left and right sides (right side) of the bonnet 78. The support frame 81 is provided with a cylindrical parasol support member, and a sunshade parasol or umbrella is inserted and fixed to the cylindrical parasol support member so that the worker sitting on the seat 79 is not exposed to sunlight or rain. Thus, the work environment can be improved.

前記ステップ８０は、機体平面視で座席７９と苗供給装置２４との間に配置されるメインステップ８２と、座席７９及びボンネット７８の左右両側に設けたサブステップ８３とで構成される。前記サブステップ８３は、機体の前端部からメインステップ８２近くまで前後に延設され、前部８３ａが後部８３ｂより一段低い位置に構成され、作業者が機体の前端部から乗降することができるように構成されている。このサブステップ８３の上段となる後部８３ｂの下方には車輪（後輪）７を昇降させるための昇降機構（アーム１６、ローリングシリンダ１５、ロッド１４等）を配置することができ、機体のスペースを有効利用して機体のコンパクト化を図っている。また、車輪（後輪）７のトレッド変更に応じて、サブステップ８３の後部の下方に上下に回動する走行伝動ケースとなるチェーン伝動ケース９を配置することができる。また、メインステップ８２の前端部には上方に傾斜して立ち上がる立ち上がり部８２ａを設けており、該立ち上がり部８２ａにより座席７９に座る作業者の足が苗植付装置２３の上下動機構４に接触しないように防護している。また、立ち上がり部８２ａを苗供給装置２４の下方に位置させることにより、機体の前後長を短縮できる。また、メインステップ８２は、立ち上がり部８２ａを備えることにより、強度が向上する。尚、立ち上がり部８２ａには、左右の後輪７と苗植付装置２３並びに苗供給装置２４の駆動を入り切り操作する乗車用主クラッチレバー８４と、左右の後輪７の駆動を断つことができる左右各々のサイドクラッチペダル８５とを設けており、座席７９にいる作業者が機体の停止や機体の進行方向の修正を行うことができる。 The step 80 includes a main step 82 disposed between the seat 79 and the seedling supply device 24 in plan view of the body, and sub-steps 83 provided on the left and right sides of the seat 79 and the bonnet 78. The sub-step 83 extends forward and backward from the front end portion of the airframe to near the main step 82, the front portion 83a is configured to be one step lower than the rear portion 83b, and allows an operator to get on and off from the front end portion of the airframe. It is configured. An elevating mechanism (arm 16 , rolling cylinder 15, rod 14, etc.) for elevating the wheel (rear wheel) 7 can be arranged below the rear part 83 b which is the upper stage of the sub-step 83, and the space of the fuselage can be reduced. The aircraft is made compact by making effective use. Further, a chain transmission case 9 serving as a traveling transmission case that rotates up and down can be disposed below the rear portion of the substep 83 in accordance with a tread change of the wheel (rear wheel) 7. In addition, a rising portion 82a is provided at the front end of the main step 82 so as to be inclined upward and the operator's foot sitting on the seat 79 contacts the vertical movement mechanism 4 of the seedling planting device 23 by the rising portion 82a. Protects against this. Further, by positioning the rising portion 82a below the seedling supply device 24, the longitudinal length of the machine body can be shortened. Moreover, the main step 82 is provided with the rising portion 82a, whereby the strength is improved. It should be noted that at the rising portion 82a, the driving of the left and right rear wheels 7, the seedling planting device 23, and the seedling feeding device 24 for turning on and off the main clutch lever 84 and the left and right rear wheels 7 can be cut off. Left and right side clutch pedals 85 are provided so that an operator in the seat 79 can stop the aircraft and correct the traveling direction of the aircraft.

尚、上述ではサブステップ８３を左右両側に設ける構成としたが、左右何れか一方のみにサブステップ８３を設ける構成としてもよく、このときは座席７９の支持フレーム８１がない側（左側）にサブステップ８３を設ける構成とすれば、前記支持フレーム８１が邪魔にならずにサブステップ８３により容易に乗降できる。   In the above description, the sub-step 83 is provided on both the left and right sides. However, the sub-step 83 may be provided on only one of the left and right sides. In this case, the sub-step 83 may be provided on the side without the support frame 81 (left side). If the step 83 is provided, the support frame 81 can easily get on and off by the sub-step 83 without obstructing.

左右の前輪６の間となる機体の前端部には畝Ｕの上面に接地して該畝Ｕの終端を検出する畝終端センサ８６を設け、該畝終端センサ８６は機体の前進により畝のないところに到達して畝上面を感知しなくなることにより畝の終端に到達したことを検出する構成となっている。この畝終端センサ８６による畝の終端の検出に基づいて、主クラッチを自動的に切って左右の後輪７の駆動と苗植付装置２３並びに苗供給装置２４の駆動を停止し、機体を停止させると共に、警報（例えばブザー等の警音）を出して作業者に告知する。これにより、座席７９に座る作業者は、機体の進行方向に対して後ろ向きとなり、苗補給作業に集中しているため機体の前方を確認しにくく、機体が畝の終端に達したことに気づかず、周囲の構造物への衝突等の事故を発生させるおそれがあるが、前記畝終端センサ８６により畝の終端で機体を自動停止すると共に警報で畝の終端に達したことを告知するため、安全に作業が行え、また機体の前方の状況及び畝の終端の位置を気にせずに苗供給装置２４への苗補給作業を集中して行え、植付作業能率が向上する。前記畝終端センサ８６は、機体の左右中央（左右の車輪６，７のトレッド）に対して右寄りの位置に配置され、ローリングシリンダ１１による左側の後輪７の上下動に伴う上下動が小さいので、適確に且つ安定して畝の上面を検出することができる。また、畝終端センサ８６は、機体の対地高さを制御するための前鎮圧輪１５と苗植付け体５の苗植付位置とを避けた左右位置（右側の前鎮圧輪１５及び苗植付位置より左側）に設けているので、苗植付位置の土壌を荒らさず、植付精度を低下させないようにしている。   A front end of the airframe between the left and right front wheels 6 is provided with a front end sensor 86 that contacts the upper surface of the front U and detects the end of the front U. The front end sensor 86 is free from wrinkles due to the forward movement of the front body. However, it is configured to detect that the terminal end of the bag is reached by reaching the place and not sensing the upper surface of the bag. Based on detection of the heel end by the heel end sensor 86, the main clutch is automatically disengaged to stop the driving of the left and right rear wheels 7, the driving of the seedling planting device 23 and the seedling supplying device 24, and the machine body is stopped. At the same time, an alarm (for example, a buzzer or the like) is issued to notify the operator. As a result, the worker sitting on the seat 79 faces backward with respect to the advancing direction of the aircraft, and since it concentrates on the seedling replenishment work, it is difficult to confirm the front of the aircraft and does not notice that the aircraft has reached the end of the heel. Although there is a risk of causing an accident such as a collision with surrounding structures, the dredge end sensor 86 automatically stops the aircraft at the end of the dredge and notifies the end of the dredge by an alarm. The seedling replenishment work can be concentrated on the seedling supply device 24 without worrying about the situation in front of the machine body and the position of the end of the heel, thereby improving the planting work efficiency. The heel end sensor 86 is disposed at a position to the right of the left and right center of the aircraft (tread of the left and right wheels 6 and 7), and the vertical movement accompanying the vertical movement of the left rear wheel 7 by the rolling cylinder 11 is small. The upper surface of the ridge can be detected accurately and stably. In addition, the heel end sensor 86 is a left-right position (a right front pressure wheel 15 and a seedling planting position on the right side) that avoids the front pressure wheel 15 and the seedling planting position of the seedling planting body 5 for controlling the height of the aircraft to the ground. Since it is provided on the left side), the soil at the planting position is not roughened and the planting accuracy is not lowered.

また、操縦ハンドル２の近くには、左右の後輪７と苗植付装置２３並びに苗供給装置２４の駆動を手動で入り切りする主クラッチレバー８７と、苗植付装置２８並びに苗供給装置２４の駆動のみを手動で入り切りする植付操作レバー８８とを備えている。尚、前記植付操作レバー８８により、昇降用油圧シリンダ１４を作動させて手動で機体を昇降操作することもできる。そして、この植付操作レバー８８の操作位置を検出するセンサ（検出手段）を設け、該植付操作レバー８８により苗植付装置２３並びに苗供給装置２４が駆動状態に操作されているときだけ、前述の畝終端センサ８６による機体の自動停止制御及び警報が作動する構成としている。これにより、植付作業時のみ機体の自動停止制御及び警報を作動させることができ、移動走行時や畝終端での機体旋回時に、畝終端センサ８６が畝上面を検出しないことにより不必要に機体が停止するようなことを防止でき、操作性が向上する。尚、上述の植付操作レバー８８による機体の自動停止制御及び警報の作動の入り切りに代えてあるいは併用して、座席７９に作業者が着座したことを検出する着座センサを設け、座席７９に作業者が着座しているときだけ、機体の自動停止制御及び警報が作動する構成としてもよい。また、畝終端センサ５６による畝終端の検出で、警報が先に作動し、その所定時間後（数秒後）に機体が自動停止する構成とすることができる。尚、機体の自動停止は、エンジン３を停止させることにより行ってもよい。 Further, near the steering handle 2, the main clutch lever 87 for manually turning on and off the left and right rear wheels 7, the seedling planting device 23 and the seedling feeding device 24, the seedling planting device 28 and the seedling feeding device 24 are provided. And a planting operation lever 88 for manually turning on and off only the drive. The planting operation lever 88 can be used to operate the lifting hydraulic cylinder 14 to manually lift and lower the machine body. Then, a sensor (detection means) for detecting the operation position of the planting operation lever 88 is provided, and only when the seedling planting device 23 and the seedling supply device 24 are operated in the drive state by the planting operation lever 88, It is configured such that the automatic stop control and alarm of the airframe are activated by the aforementioned heel end sensor 86. As a result, the automatic stop control and alarm of the aircraft can be activated only during planting work, and the aircraft endless sensor 86 is unnecessarily detected by the heel end sensor 86 not detecting the upper surface of the heel when traveling or turning at the heel end. Can be prevented, and the operability is improved. A seating sensor for detecting that an operator is seated on the seat 79 is provided in place of or in combination with the above-described automatic stop control of the machine and the operation of the alarm by the planting operation lever 88. Only when the person is seated, the automatic stop control and warning of the aircraft may be activated. Moreover, it can be set as the structure which a warning is act | operated first by the detection of the end of the hull by the hail end sensor 56, and the body stops automatically after the predetermined time (several seconds later). The airframe may be automatically stopped by stopping the engine 3.

また、植付操作レバー８８を操作して機体を上昇させて畦際で旋回する際に、畝終端センサ８６を上動させて収納する構成とすると、畝終端センサ８６が旋回時の邪魔にならず旋回が容易に行なえる。   Further, when the planting operation lever 88 is operated to raise the machine body and turn on the heel, when the heel end sensor 86 is moved up and stored, the heel end sensor 86 is not in the way of turning. It can be turned easily.

畝終端センサ８６は、機体に基部を回動自在に枢支した回動アーム８６ａの下端に回転ローラ８６ｂを回転自在に設けた構成になっている。そして、畝終端センサ８６（回転ローラ８６ｂ）が必要以上に下方に回動しないように下方回動規制杆を回動アーム８６ａの下方位置に設けてあり、この下方回動規制杆と植付操作レバー８８とを操作ワイヤにて連携して、機体を上昇させるべく植付操作レバー８８を操作した時に操作ワイヤを介して下方回動規制杆を上動させて回動アーム８６ａの下方に接当させて、回動アーム８６ａを収納位置まで上方回動させる構成としている。このように、畝終端センサ８６（回転ローラ８６ｂ）が必要以上に下方に回動しないように設けた下方回動規制杆を畝終端センサ８６を収納位置に変更する部材に兼用することにより、機体構成が簡潔となり、安価に構成できる。 The heel end sensor 86 has a configuration in which a rotation roller 86b is rotatably provided at the lower end of a rotation arm 86a pivotally supported on the base of the machine body. A lower rotation restricting rod is provided at a position below the rotation arm 86a so that the rod end sensor 86 (rotating roller 86b) does not rotate downward more than necessary. When the planting operation lever 88 is operated to raise the machine body in cooperation with the lever 88, the downward rotation restricting rod is moved upward via the operation wire to contact the lower portion of the rotation arm 86a. Thus, the rotating arm 86a is rotated upward to the storage position. Thus, by using the downward rotation restricting rod provided so that the rod end sensor 86 (rotating roller 86b) does not rotate downward more than necessary as a member for changing the rod end sensor 86 to the storage position, the machine body The configuration is simple and can be configured at low cost.

座席７９の左右側方には、苗載台８９を配置している。該苗載台８９は、載置する苗収容枠（苗箱、苗トレイ又は苗コンテナ等）の四角形状の底面に対して一部を欠如し、その欠如した部分の外縁が苗供給装置２４の苗供給カップ２５の周回移動軌跡の円弧状部分３７に沿うような形状となっており、苗収容枠を載置していないときは苗供給カップ２５への苗補給の邪魔にならないようにしている。また、苗載台８９は、苗供給装置２４の一部の苗供給カップ２５の上方に重複するが、移動リンク機構により機体側方に移動できる構成としたので、座席７９に座る作業者が苗補給作業を行いやすい位置に任意に移動でき、機体前端部からステップ８０を介して乗降するときにはステップ８０（サブステップ83）より左右方向外側へ移動させて、乗降の邪魔にならないようにでき、トラックへの積込時や倉庫への格納時等には左右方向外側へ移動させて、機体の左右幅を縮小することができる。尚、苗供給装置２４の苗供給カップ２５の上方に重複しない位置まで苗載台８９を左右方向外側へ移動できる構成としてもよい。また、移動リンク機構は、各リンクのリンク長を異ならせた構成となっており、苗供給装置２４への苗補給のために苗載台８９を左右方向内側へ移動させたときは該苗載台８９を斜め後内向きに向ける構成となっている。これにより、苗補給作業の容易化が図れる。   On the left and right sides of the seat 79, a seedling stand 89 is disposed. The seedling stage 89 lacks a part of the rectangular bottom surface of the seedling storage frame (seedling box, seedling tray, seedling container, etc.) to be placed, and the outer edge of the lacked part is the seedling supply device 24. It has a shape that follows the arc-shaped portion 37 of the orbital movement trajectory of the seedling supply cup 25 so that it does not interfere with the seedling supply to the seedling supply cup 25 when the seedling storage frame is not placed. . In addition, although the seedling stage 89 overlaps above a part of the seedling supply cup 25 of the seedling supply device 24, it is configured to be movable to the side of the machine body by the moving link mechanism, so that an operator sitting on the seat 79 can see the seedling. It can be arbitrarily moved to a position where replenishment work can be easily performed, and when getting on and off from the front end of the aircraft via step 80, it can be moved to the outside in the left and right direction from step 80 (sub step 83) so as not to obstruct getting on and off, It can be moved to the outside in the left-right direction when loading into the warehouse or when storing in the warehouse, etc., and the left-right width of the aircraft can be reduced. In addition, it is good also as a structure which can move the seedling mounting stand 89 to the left-right direction outer side to the position which does not overlap above the seedling supply cup 25 of the seedling supply apparatus 24. FIG. Further, the moving link mechanism has a structure in which the link length of each link is different, and when the seedling mounting base 89 is moved inward in the left-right direction for supplying seedlings to the seedling supplying device 24, the seedling mounting is performed. It is the structure which orient | assigns the base 89 to back diagonally inward. Thereby, the seedling replenishment work can be facilitated.

尚、上述は２条植えの構成について説明したが、３条以上の構成に応用してもよい。このとき、周回タイミング変更機構による苗収容体の周回位置（位相）の変更量は、複数の落下供給位置のうちの苗収容体の周回経路における位置変更が最も小さい落下供給位置の位置変更量に合わせるとよい。   In addition, although the above demonstrated the structure of 2 row planting, you may apply to the structure of 3 or more rows. At this time, the change amount of the rotation position (phase) of the seedling container by the rotation timing change mechanism is the position change amount of the fall supply position with the smallest position change in the circulation path of the seedling container among the plurality of drop supply positions. It is good to match.

また、上述は複数条に並木植えする構成について説明したが、例えば左右の苗植付け体の作動タイミングを異ならせた構成等の千鳥植えする構成に応用してもよい。尚、左右の苗植付け体の作動タイミングを異ならせた場合は、第一及び第二の苗収容体が移動機構による周回移動で各々の落下供給位置に異なるタイミングで同じ回数到達する構成となる。   Moreover, although the above demonstrated the structure planted in a row, it may be applied to the structure which staggers planting, such as the structure which varied the operation timing of the right and left seedling planting body, for example. In addition, when the operation timings of the right and left seedling planting bodies are made different, the first and second seedling containers are configured to reach the same number of times at different timings at the respective drop supply positions by the circular movement by the moving mechanism.

また、上述の苗落下供給機構２７は支持体４２により落下供給位置３９，４０を設定する構成について説明したが、この構成に加えて、苗植付け体が苗収容体の直下まで上昇したときに、苗植付け体に設けた開放作動部材が苗植付け体の上方に位置する苗収容体の底蓋が開くのを規制する規制手段を設け、該規制手段を規制解除動作させて苗を落下供給させる構成を設けてもよい。   In addition, the above-described seedling drop supply mechanism 27 has been described with respect to the configuration in which the drop supply positions 39 and 40 are set by the support 42. In addition to this configuration, when the seedling planting body rises to just below the seedling container, A configuration in which an opening actuating member provided on the seedling planting body is provided with regulating means for regulating the opening of the bottom lid of the seedling container positioned above the seedling planting body, and the regulation means is operated to release the regulation to drop and supply the seedling May be provided.

本発明の苗植機は、野菜苗に限らず、その他の苗を植え付ける苗植機として利用可能性がある。
また、乗用型の苗植機について詳述したが、歩行型の苗植機であってもよい。 The seedling planting machine of the present invention is not limited to vegetable seedlings and may be used as a seedling planting machine for planting other seedlings.
Moreover, although the riding-type seedling planting machine has been described in detail, a walking-type seedling planting machine may be used.

苗植機の側面図である。It is a side view of a seedling transplanter. 後鎮圧輪の図示を省略した苗植機の平面図である。It is a top view of a seedling transplanter which omitted illustration of a back pressure wheel. 支持体の作用を説明する平面図である。It is a top view explaining the effect | action of a support body. 巻掛スプロケットとその周辺を示す図である（ａ：平面図、ｂ：斜視図）。It is a figure which shows a winding sprocket and its periphery (a: top view, b: perspective view). 苗植付装置を示す斜視図である。It is a perspective view which shows a seedling planting apparatus.

４ 上下動機構
５ 苗植付け体
２４ 苗供給装置
２５ 苗収容体
２５ｂ 第一の苗収容体
２５ｃ 第二の苗収容体
２６ 移動機構
２７ 苗落下供給機構
３９ 左落下供給位置
４０ 右落下供給位置
４２ｅ 落下供給位置変更機構（第一移動支持体）
４２ｆ 落下供給位置変更機構（第二移動支持体）
６９ 植付位置変更機構（ボス）
７０ 植付位置変更機構（位置調節軸） 4 vertical movement mechanism 5 seedling planting body 24 seedling supply device 25 seedling container 25b first seedling container 25c second seedling container 26 moving mechanism 27 seedling drop supply mechanism 39 left fall supply position 40 right fall supply position 42e fall Supply position change mechanism (first moving support)
42f Drop supply position changing mechanism (second moving support)
69 Planting position change mechanism (boss)
70 Planting position change mechanism (position adjustment shaft)

Claims (3)

上下動機構（４）により上下動して圃場に苗を植え付ける苗植付け体（５）を左右に各々設け、該左右各々の苗植付け体（５）へ苗を供給する苗供給装置（２４）は、苗を収容する複数の苗収容体（２５）と、該複数の苗収容体（２５）を所定の配列ピッチでループ状に配置し順次各々の苗植付け体（５）の上方を通過するように周回移動させる移動機構（２６）と、該移動機構（２６）により苗収容体（２５）が苗植付け体（５）の上方位置となる落下供給位置（３９・４０）に移動すると苗収容体（２５）が収容する苗を上下動機構（４）で上動した苗植付け体（５）へ落下供給させる苗落下供給機構（２７）とを備え、一方の落下供給位置（３９）で落下供給する苗を収容する第一の苗収容体（２５ｂ）と他方の落下供給位置（４０）で落下供給する苗を収容する第二の苗収容体（２５ｃ）とを各別に設けて、前記第一及び第二の苗収容体（２５ｂ・２５ｃ）が移動機構（２６）による周回移動で各々の落下供給位置（３９・４０）に到達する構成とした複数条植えの苗植機において、上下の昇降リンク（５２，５３）により上下動機構（４）を構成し、上側の昇降リンク（５２）の回動支点軸（５８）を植付出力軸（５９）に偏心させて設け、植付出力軸（５９）の回転により回動支点軸（５８）が前後に移動して苗植付け体（５）を昇降させながら前後に傾けて側面視ループ状の作動軌跡で上下動させる構成とし、左右苗植付け体（５）を各々各別に移動する植付位置変更機構（６９・７０）を設けると共に、苗落下供給機構（２７）の各落下供給位置（３９・４０）を苗植付け体（５）が最も上動した位置と上昇過程位置とに変更する落下供給位置変更機構（４２ｅ・４２ｆ）を設けたことを特徴とする複数条植え苗植機。 A seedling supply device (24) for vertically moving the vertical planting mechanism (4) to plant seedlings in a field by planting seedlings (5) to the left and right, and supplying seedlings to the left and right seedling planting bodies (5) A plurality of seedling containers (25) for storing seedlings and a plurality of seedling containers (25) are arranged in a loop with a predetermined arrangement pitch so as to pass sequentially above each seedling planting body (5). And a moving mechanism (26) that moves around the seedling body, and the moving mechanism (26) moves the seedling container (25) to a drop supply position (39, 40) that is located above the seedling planting body (5). A seedling drop supply mechanism (27) for dropping and supplying the seedlings contained in (25) to the seedling planting body (5) moved up by the vertical movement mechanism (4), and dropping supply at one fall supply position (39) The first seedling container (25b) for storing the seedling to perform and the other fall supply position (40) A second seedling container (25c) for storing the seedlings to be supplied is provided separately, and each of the first and second seedling containers (25b, 25c) is moved in a circular motion by the moving mechanism (26). In the multi-row planting seedling machine configured to reach the drop supply position (39, 40), the vertical moving mechanism (4) is configured by the vertical lifting links (52, 53), and the upper lifting link (52) The rotation fulcrum shaft (58) is eccentrically provided on the planting output shaft (59), and the rotation fulcrum shaft (58) is moved back and forth by the rotation of the planting output shaft (59). ) Is tilted back and forth while moving up and down, and is moved up and down in a loop-like operation locus, and provided with planting position changing mechanisms (69, 70) for moving the left and right seedling planting bodies (5) individually, Each drop supply position (39, 40) of the seedling drop supply mechanism (27) Planting material (5) is the most upward position and ascent process position and plural rows planting seedling planting machine, characterized in that a falling supply position changing mechanism for changing (42e · 42f) to. 左右の落下供給位置（３９・４０）の変更に合わせて、第一の植付条間で１条目の落下供給位置（３９）を苗植付け体（５）が最も上動した位置に設定し且つ２条目の落下供給位置（４０）を苗植付け体（５）の上昇過程位置に設定する状態と、第二の植付条間で１条目の落下供給位置（３９）を苗植付け体（５）の上昇過程位置に設定し且つ２条目の落下供給位置（４０）を苗植付け体（５）が最も上動した位置に設定する状態に切替でき、上下動機構（４）の作動に対する苗収容体（２５）の周回位置を変更する周回タイミング変更機構（２９ａ・３６）を設けたことを特徴とする請求項１に記載の複数条植え苗植機。 In accordance with the change of the left and right drop supply positions (39, 40) , the first drop supply position (39) is set to the position where the seedling planting body (5) is most moved up between the first planting lines, and The state in which the second drop supply position (40) is set as the ascending process position of the seedling planting body (5) and the first drop supply position (39) between the second planting lines is set as the seedling planting body (5). Can be switched to a state in which the second drop supply position (40) is set to the position where the seedling planting body (5) is most moved up, and the seedling container for the operation of the vertical movement mechanism (4) is set. The multiple-row planting seedling planting machine according to claim 1, further comprising a circulation timing changing mechanism (29a, 36) for changing the circulation position of (25). 機体の前端部には畝（Ｕ）に接する状態から接さない状態となることで該畝（Ｕ）の終端を検出する畝終端センサ（８６）を設け、畝終端センサ（８６）による畝の終端の検出に基づいて警報する構成とし、畝終端センサ（８６）は、上下方向に回動する回動アーム（８６ａ）に回転ローラ（８６ｂ）を回転自在に設けた構成とし、回動アーム（８６ａ）の下方への回動を規制する下方回動規制杆を設け、機体の上昇に連動して下方回動規制杆を上動させて畝終端センサ（８６）を上方へ収納する構成とした請求項１又は請求項２に記載の複数条植え苗植機。The front end of the aircraft is provided with a heel end sensor (86) for detecting the end of the heel (U) when the heel (U) is brought into a non-contact state. An alarm is made based on the detection of the end, and the heel end sensor (86) has a structure in which a rotating roller (86b) is rotatably provided on a rotating arm (86a) that rotates in the vertical direction. 86a) is provided with a downward rotation restricting rod for restricting downward rotation, and the lower rotation restricting rod is moved upward in conjunction with the rise of the machine body so that the hook end sensor (86) is accommodated upward. The multiple-row planting seedling planting machine according to claim 1 or 2.
JP2007011370A 2007-01-22 2007-01-22 Multi-row seedling planting machine Expired - Fee Related JP5029028B2 (en)

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KR1020070135611A KR100923239B1 (en) 2007-01-22 2007-12-21 Plural row seedling transplanter

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JP5785516B2 (en) * 2012-04-12 2015-09-30 株式会社クボタ Transplanter
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