JP4389122B2 - Seedling transplanter - Google Patents

Seedling transplanter Download PDF

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Publication number
JP4389122B2
JP4389122B2 JP2006050521A JP2006050521A JP4389122B2 JP 4389122 B2 JP4389122 B2 JP 4389122B2 JP 2006050521 A JP2006050521 A JP 2006050521A JP 2006050521 A JP2006050521 A JP 2006050521A JP 4389122 B2 JP4389122 B2 JP 4389122B2
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leveling
rear wheels
seedling
central
right rear
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JP2007228807A (en
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和弘 竹川
神谷　　寿
英之 草本
享 福井
康仁 中西
信 山口
靖浩 林
章 沖本
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Iseki and Co Ltd
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Iseki and Co Ltd
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Priority to JP2006050521A priority Critical patent/JP4389122B2/en
Priority to KR1020060066385A priority patent/KR100729829B1/en
Priority to CN2006101089605A priority patent/CN101027958B/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
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C11/00—Transplanting machines
    • A01C11/006—Other parts or details or planting machines
    • 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)
  • Transplanting Machines (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Working Implements (AREA)

Description

本発明は、畦際で機体を旋回させる際に車輪によって荒らされた圃場面（枕地）を整地する整地作業装置を装備した苗移植機に関するものである。   The present invention relates to a seedling transplanter equipped with a leveling work device for leveling a field scene (headland) that has been roughened by wheels when the machine is turned at the heel.

従来、この種の苗移植機（乗用型田植機）において、苗植付装置による苗植付けの直前に圃場面を整地して均平化するための整地用ロータを備えたものがある。
この従来技術の苗移植機は、機体旋回時に車輪によって荒らされた圃場面（枕地）を整地用ロータにより整地して均平にすることができて、作業能率の向上が図れるものであった。
特開２００３−１０２２１９号公報 Conventionally, this type of seedling transplanter (passenger type rice transplanter) includes a leveling rotor for leveling and leveling a farm scene immediately before seedling planting by a seedling planting device.
This seedling transplanter of this prior art was able to level the farming scene (headland) devastated by the wheels when turning the aircraft by leveling with the leveling rotor and improve the work efficiency. .
JP 2003-102219 A

上記特許文献に開示された苗移植機は、左右整地用ロータと中央整地用ロータとが各々別々に苗植付装置に装着された複雑な構成となっており、然も、整地用ロータの重量がとても重くなる構成であって、圃場での苗移植作業性を悪化させるものであった。   The seedling transplanting machine disclosed in the above-mentioned patent document has a complicated configuration in which the right and left leveling rotor and the central leveling rotor are separately mounted on the seedling planting device, and the weight of the leveling rotor Is a structure that becomes very heavy, and deteriorates seedling transplanting workability in the field.

請求項１記載の発明は、左右後輪１１を装備した走行車体２の後側に昇降リンク装置３を介して苗植付部４を装着し、該苗植付部４に機体正面視で左右後輪１１間に位置するセンターフロート５５の前方には機体側面視で左右後輪１１間に中央整地作業装置２７ｂを設け、左右後輪１１の後方若しくは外側方に位置するサイドフロート５６の前方には機体側面視で左右後輪１１の後方に左右整地作業装置２７ａを設けた苗移植機において、中央整地作業装置２７ｂの左右両側と左右整地作業装置２７ａの各々の内端側とを左右伝動ケース７３にて連結して一体構成として上下位置調節自在に設けた苗移植機としたものである。 First aspect of the present invention, the seedling planting unit 4 is attached via a lifting linkage 3 on the rear side of the vehicle body 2 equipped with a left and right rear wheels 11, left and right body front view in該苗planting section 4 A central leveling device 27b is provided between the left and right rear wheels 11 in front of the center float 55 located between the rear wheels 11 and in front of the side float 56 located rearward or outward of the left and right rear wheels 11. in seedling transplanter provided with left and right leveling working device 27a to the rear of the left and right rear wheels 11 in the fuselage side view, left and right transmission case to the left and right sides and the inner end side of each of the left and right leveling working device 27a of the central ground leveling work unit 27b It is set as the seedling transplanting machine which was connected by 73 and was provided so that vertical position adjustment was possible as an integrated structure.

従って、畦際での機体旋回時に乱した圃場面を中央整地作業装置２７ｂと左右整地作業装置２７ａとで整地して苗移植作業が行なえるので、適切な苗移植作業が作業能率良く行なえる。また、中央整地作業装置２７ｂを左右後輪１１の後方に配置した左右整地作業装置２７ａよりも前方の左右後輪１１間に設けて、機体全長を短く構成したものでありながら、中央整地作業装置２７ｂと左右整地作業装置２７ａとを連結して一体構成として上下位置調節自在に設けたので、簡潔な構成となり、機体全体の重量を軽量な構成とすることができて、特に、水田圃場での走行性能が良好となり苗移植作業が適切に行なえる。   Therefore, since the field scene disturbed at the time of turning the body at the shore can be leveled by the central leveling work device 27b and the left and right leveling work device 27a and the seedling transplanting work can be performed, an appropriate seedling transplanting work can be performed with high work efficiency. Further, the central leveling work device 27b is provided between the left and right rear wheels 11 ahead of the left and right leveling work devices 27a arranged behind the left and right rear wheels 11, and the overall length of the machine body is shortened. 27b and the left and right leveling work device 27a are connected so that the vertical position can be freely adjusted as an integrated structure, so that the structure can be simplified and the weight of the entire body can be reduced, especially in the paddy field. The running performance is good and seedling transplanting work can be performed appropriately.

また、中央整地作業装置２７ｂの左右両側と左右整地作業装置２７ａの各々の内端側とを左右伝動ケース７３にて連結したので、中央整地作業装置２７ｂと左右整地作業装置２７ａとの駆動構成が簡潔なものとなり、然も、伝動ケース７３が連結部材を兼用する構成となるので、更に、機体の軽量化が図れて、水田圃場での走行性能が更に良好となり苗移植作業が適切に行なえる。Further, since the left and right sides of the central leveling work device 27b and the inner end sides of the left and right leveling work devices 27a are connected by the left and right transmission cases 73, the drive configuration of the central leveling work device 27b and the left and right leveling work devices 27a is as follows. However, since the transmission case 73 also serves as a connecting member, the weight of the aircraft can be further reduced, the running performance in the paddy field can be further improved, and the seedling transplanting work can be performed appropriately. .

請求項２記載の発明は、左右後輪１１を装備した走行車体２の後側に昇降リンク装置３を介して苗植付部４を装着し、該苗植付部４に機体正面視で左右後輪１１間に位置するセンターフロート５５の前方には機体側面視で左右後輪１１間に中央整地作業装置２７ｂを設け、左右後輪１１の後方若しくは外側方に位置するサイドフロート５６の前方には機体側面視で左右後輪１１の後方に左右整地作業装置２７ａを設けた苗移植機において、中央整地作業装置２７ｂの左右両側と左右整地作業装置２７ａの各々の内端側とを左右連結部材７３にて連結し、該左右連結部材７３をセンターフロート５５と左右後輪１１間に配置して一体構成として上下位置調節自在に設けた苗移植機としたものである。 In the invention according to claim 2, the seedling planting part 4 is mounted on the rear side of the traveling vehicle body 2 equipped with the left and right rear wheels 11 via the lifting link device 3, and the seedling planting part 4 has left and right sides in front of the body. A central leveling device 27b is provided between the left and right rear wheels 11 in front of the center float 55 located between the rear wheels 11 and in front of the side float 56 located rearward or outward of the left and right rear wheels 11. in seedling transplanter provided with left and right leveling working device 27a to the rear of the left and right rear wheels 11 in the fuselage side view, right and left connecting members and the left and right sides and the inner end side of each of the left and right leveling working device 27a of the central ground leveling work unit 27b 73 , the right and left connecting member 73 is disposed between the center float 55 and the left and right rear wheels 11 to form a seedling transplanting machine provided as an integral configuration so that the vertical position can be adjusted .

従って、畦際での機体旋回時に乱した圃場面を中央整地作業装置２７ｂと左右整地作業装置２７ａとで整地して苗移植作業が行なえるので、適切な苗移植作業が作業能率良く行なえる。また、中央整地作業装置２７ｂを左右後輪１１の後方に配置した左右整地作業装置２７ａよりも前方の左右後輪１１間に設けて、機体全長を短く構成したものでありながら、中央整地作業装置２７ｂと左右整地作業装置２７ａとを連結して一体構成として上下位置調節自在に設けたので、簡潔な構成となり、機体全体の重量を軽量な構成とすることができて、特に、水田圃場での走行性能が良好となり苗移植作業が適切に行なえる。Therefore, since the field scene disturbed at the time of turning the body at the shore can be leveled by the central leveling work device 27b and the left and right leveling work device 27a and the seedling transplanting work can be performed, an appropriate seedling transplanting work can be performed with high work efficiency. Further, the central leveling work device 27b is provided between the left and right rear wheels 11 ahead of the left and right leveling work devices 27a arranged behind the left and right rear wheels 11, and the overall length of the machine body is shortened. 27b and the left and right leveling work device 27a are connected so that the vertical position can be freely adjusted as an integrated structure, so that the structure can be simplified and the weight of the entire body can be reduced, especially in the paddy field. The running performance is good and seedling transplanting work can be performed appropriately.

また、中央整地作業装置２７ｂの左右両側と左右整地作業装置２７ａの各々の内端側とを左右連結部材７３にて連結したので、中央整地作業装置２７ｂと左右整地作業装置２７ａとの連結構成が簡潔なものとなり、更に、機体の軽量化が図れて、水田圃場での走行性能が更に良好となり苗移植作業が適切に行なえる。また、左右連結部材７３をセンターフロート５５と左右後輪１１間に配置したので、左右後輪１１が持ち上げた泥土がセンターフロート５５上に落下するのを左右連結部材７３が防止し、センターフロート５５の前部は適正に泥面に追従して上下動し、センターフロート５５を苗植付部４を昇降制御するセンサとしての機能を持つ構成とした場合には、苗植付部４は適正に昇降制御されて、良好な苗植付け作業が行なえる。 Further, since the left and right sides of the central leveling work device 27b and the inner end sides of the left and right leveling work devices 27a are connected by the left and right connecting members 73, the connection configuration of the central leveling work device 27b and the left and right leveling work devices 27a is as follows. In addition, the aircraft can be reduced in weight, the running performance in paddy fields can be further improved, and seedling transplanting work can be performed appropriately. Also, since the left and right connecting members 73 are disposed between the center float 55 and the left and right rear wheels 11, the left and right connecting members 73 prevent the mud lifted by the left and right rear wheels 11 from falling on the center float 55, and the center float 55 When the center float 55 is configured to have a function as a sensor that controls the raising and lowering of the seedling planting unit 4, the seedling planting unit 4 properly The raising and lowering control is performed, so that a good seedling planting operation can be performed.

請求項３記載の発明は、昇降リンク装置３にて苗植付部４を上昇させた時に中央整地作業装置２７ｂが下動するように、左右整地作業装置２７ａに対して中央整地作業装置２７ｂを上下動自在に支持機構７８にて支持した請求項1又は請求項２記載の苗移植機としたものである。 According to the third aspect of the present invention , the central leveling work device 27b is attached to the left and right leveling work device 27a so that the center leveling work device 27b moves down when the seedling planting unit 4 is raised by the lifting link device 3. The seedling transplanting machine according to claim 1 or 2, which is supported by a support mechanism 78 so as to be movable up and down.

従って、請求項１又は請求項２記載の発明の作用に加えて、中央整地作業装置２７ｂを左右後輪１１の後方に配置した左右整地作業装置２７ａよりも前方の左右後輪１１間に設けて、機体全長を短く構成したものでありながら、苗植付部４を上昇させる際には、中央整地作業装置２７ｂは下動して昇降リンク装置３と激突して破損することが防止されて、苗植付部４の上昇を適切に行なわせることができる。 Therefore, in addition to the operation of the invention described in claim 1 or 2 , the central leveling work device 27b is provided between the left and right rear wheels 11 in front of the left and right leveling work device 27a disposed behind the left and right rear wheels 11. When the seedling planting part 4 is raised while the length of the machine body is shortened, the center leveling work device 27b is prevented from moving down and colliding with the lifting link device 3 and being damaged, The raising of the seedling planting part 4 can be performed appropriately.

請求項１記載の発明によれば、畦際での機体旋回時に乱した圃場面を中央整地作業装置２７ｂと左右整地作業装置２７ａとで整地して苗移植作業が行なえるので、適切な苗移植作業が作業能率良く行なえる。また、中央整地作業装置２７ｂを左右後輪１１の後方に配置した左右整地作業装置２７ａよりも前方の左右後輪１１間に設け、且つ、簡潔な構成で機体全長を短く構成して、機体全体の重量を軽量な構成とすることができ、特に、水田圃場での走行性能が良好となり苗移植作業が適切に行なえる。
また、中央整地作業装置２７ｂの左右両側と左右整地作業装置２７ａの各々の内端側とを左右伝動ケース７３にて連結したので、中央整地作業装置２７ｂと左右整地作業装置２７ａとの駆動構成が簡潔なものとなり、然も、伝動ケース７３が連結部材を兼用する構成となるので、更に、機体の軽量化が図れて、水田圃場での走行性能が更に良好となり苗移植作業が適切に行なえる。
請求項２記載の発明によれば、畦際での機体旋回時に乱した圃場面を中央整地作業装置２７ｂと左右整地作業装置２７ａとで整地して苗移植作業が行なえるので、適切な苗移植作業が作業能率良く行なえる。また、中央整地作業装置２７ｂを左右後輪１１の後方に配置した左右整地作業装置２７ａよりも前方の左右後輪１１間に設けて、機体全長を短く構成したものでありながら、中央整地作業装置２７ｂと左右整地作業装置２７ａとを連結して一体構成として上下位置調節自在に設けたので、簡潔な構成となり、機体全体の重量を軽量な構成とすることができて、特に、水田圃場での走行性能が良好となり苗移植作業が適切に行なえる。
また、中央整地作業装置２７ｂの左右両側と左右整地作業装置２７ａの各々の内端側とを左右連結部材７３にて連結したので、中央整地作業装置２７ｂと左右整地作業装置２７ａとの連結構成が簡潔なものとなり、更に、機体の軽量化が図れて、水田圃場での走行性能が更に良好となり苗移植作業が適切に行なえる。また、左右連結部材７３をセンターフロート５５と左右後輪１１間に配置したので、左右後輪１１が持ち上げた泥土がセンターフロート５５上に落下するのを左右連結部材７３が防止し、センターフロート５５の前部は適正に泥面に追従して上下動し、センターフロート５５を苗植付部４を昇降制御するセンサとしての機能を持つ構成とした場合には、苗植付部４は適正に昇降制御されて、良好な苗植付け作業が行なえる。
請求項３記載の発明によれば、請求項１又は請求項２記載の発明の効果に加えて、中央整地作業装置２７ｂを左右後輪１１の後方に配置した左右整地作業装置２７ａよりも前方の左右後輪１１間に設けて、機体全長を短く構成したものでありながら、苗植付部４を上昇させる際には、中央整地作業装置２７ｂは下動して昇降リンク装置３と激突して破損することが防止されて、苗植付部４の上昇を適切に行なわせることができる。 According to the first aspect of the present invention, the seedling transplanting operation can be performed by leveling the field scene disturbed during the turning of the vehicle at the shore by the central leveling device 27b and the left and right leveling device 27a. Work can be done efficiently. Further, the central leveling work device 27b is provided between the left and right rear wheels 11 in front of the left and right leveling work devices 27a arranged behind the left and right rear wheels 11, and the entire length of the body is shortened with a simple configuration. The weight of can be reduced, and in particular, the running performance in paddy field is good and the seedling transplanting work can be performed appropriately.
Further, since the left and right sides of the central leveling work device 27b and the inner end sides of the left and right leveling work devices 27a are connected by the left and right transmission cases 73, the drive configuration of the central leveling work device 27b and the left and right leveling work devices 27a is as follows. However, since the transmission case 73 also serves as a connecting member, the weight of the aircraft can be further reduced, the running performance in the paddy field can be further improved, and the seedling transplanting work can be performed appropriately. .
According to the second aspect of the present invention, the seedling transplanting work can be carried out by leveling the field scene disturbed at the time of turning of the body at the shore with the central leveling work device 27b and the left and right leveling work device 27a. Work can be done efficiently. Further, the central leveling work device 27b is provided between the left and right rear wheels 11 ahead of the left and right leveling work devices 27a arranged behind the left and right rear wheels 11, and the overall length of the machine body is shortened. 27b and the left and right leveling work device 27a are connected so that the vertical position can be freely adjusted as an integrated structure, so that the structure can be simplified and the weight of the entire body can be reduced, especially in the paddy field. The running performance is good and seedling transplanting work can be performed appropriately.
Further, since the left and right sides of the central leveling work device 27b and the inner end sides of the left and right leveling work devices 27a are connected by the left and right connecting members 73, the connection configuration of the central leveling work device 27b and the left and right leveling work devices 27a is as follows. In addition, the aircraft can be reduced in weight, the running performance in paddy fields can be further improved, and seedling transplanting work can be performed appropriately. Also, since the left and right connecting members 73 are disposed between the center float 55 and the left and right rear wheels 11, the left and right connecting members 73 prevent the mud lifted by the left and right rear wheels 11 from falling on the center float 55, and the center float 55 When the center float 55 is configured to have a function as a sensor that controls the raising and lowering of the seedling planting unit 4, the seedling planting unit 4 properly The raising and lowering control is performed, so that a good seedling planting operation can be performed.
According to the invention described in claim 3, in addition to the effect of the invention described in claim 1 or claim 2, the central leveling work device 27b is located in front of the left and right leveling work device 27a disposed behind the left and right rear wheels 11. Although it is provided between the left and right rear wheels 11 and the length of the machine body is shortened, when raising the seedling planting part 4, the central leveling work device 27b moves down and collides with the lifting link device 3. It is prevented from being damaged, and the seedling planting part 4 can be raised appropriately.

以下、図面に基づき、本発明の好ましい一つの実施形態について説明する。
図１及び図２は本発明を用いた一実施例である施肥装置を装着した施肥装置付き乗用型田植機の側面図と平面図である。この施肥装置付き乗用型田植機１は、走行車体２の後側に昇降リンク装置３を介して苗植付部４が昇降可能に装着され、走行車体２の後部上側に施肥装置５の本体部分が設けられている。 Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.
FIG.1 and FIG.2 is the side view and top view of a riding type rice transplanter with a fertilizer applicator equipped with a fertilizer applicator according to an embodiment of the present invention. In this riding type rice transplanter 1 with a fertilizer application, a seedling planting portion 4 is mounted on the rear side of the traveling vehicle body 2 via an elevating link device 3 so that the seedling planting portion 4 can be moved up and down. Is provided.

走行車体２は、駆動輪である左右一対の前輪１０，１０及び左右一対の後輪１１，１１を備えた四輪駆動車両であって、機体の前部にミッションケース１２が配置され、そのミッションケース１２の左右側方に前輪ファイナルケース１３，１３が設けられ、該左右前輪ファイナルケース１３，１３の操向方向を変更可能な各々の前輪支持部から外向きに突出する左右前輪車軸に左右前輪１０，１０が各々取り付けられている。また、ミッションケース１２の背面部にメインフレーム１５の前端部が固着されており、そのメインフレーム１５の後端左右中央部に前後水平に設けた後輪ローリング軸を支点にして後輪ギヤケース１８，１８がローリング自在に支持され、その後輪ギヤケース１８，１８から外向きに突出する後輪車軸に後輪１１，１１が取り付けられている。尚、１１ａ，１１ａは、左右後輪１１，１１の機体内側に装着された補助車輪である。   The traveling vehicle body 2 is a four-wheel drive vehicle including a pair of left and right front wheels 10 and 10 and a pair of left and right rear wheels 11 and 11 as drive wheels, and a transmission case 12 is disposed at the front of the fuselage. Front wheel final cases 13, 13 are provided on the left and right sides of the case 12, and the left and right front wheels are mounted on the left and right front wheel axles projecting outward from the respective front wheel support portions capable of changing the steering direction of the left and right front wheel final cases 13, 13. 10 and 10 are respectively attached. Further, the front end portion of the main frame 15 is fixed to the rear portion of the transmission case 12, and a rear wheel gear case 18, with a rear wheel rolling shaft provided horizontally in the front and rear sides at the rear left and right center of the main frame 15 as a fulcrum. The rear wheels 11 and 11 are attached to a rear wheel axle that is supported in a freely rolling manner and projects outwardly from the rear wheel gear cases 18 and 18. In addition, 11a and 11a are auxiliary wheels mounted on the inner side of the left and right rear wheels 11 and 11.

エンジン２０はメインフレーム１５の上に搭載されており、該エンジン２０の回転動力が、ベルト伝動装置２１及びＨＳＴ２３を介してミッションケース１２に伝達される。ミッションケース１２に伝達された回転動力は、該ケース１２内のトランスミッションにより変速された後、走行動力と外部取出動力に分離して取り出される。そして、走行動力は、一部が前輪ファイナルケース１３，１３に伝達されて前輪１０，１０を駆動すると共に、残りが後輪ギヤケース１８，１８に伝達されて後輪１１，１１を駆動する。また、外部取出動力は、走行車体２の後部に設けた植付クラッチケース２５に伝達され、それから植付伝動軸２６によって苗植付部４へ伝動されるとともに、施肥伝動機構２８によって施肥装置５へ伝動される。 The engine 20 is mounted on the main frame 15, and the rotational power of the engine 20 is transmitted to the transmission case 12 via the belt transmission device 21 and the HST 23. The rotational power transmitted to the mission case 12 is shifted by a transmission in the case 12 and then separated into traveling power and external power to be extracted. A part of the traveling power is transmitted to the front wheel final cases 13 and 13 to drive the front wheels 10 and 10, and the rest is transmitted to the rear wheel gear cases 18 and 18 to drive the rear wheels 11 and 11. Further, the external take-out power is transmitted to a planting clutch case 25 provided at the rear part of the traveling vehicle body 2, and then transmitted to the seedling planting unit 4 by the planting transmission shaft 26, and also the fertilizer application device 5 by the fertilization transmission mechanism 28. Is transmitted to.

エンジン２０の上部はエンジンカバー３０で覆われており、その上に座席３１が設置されている。座席３１の前方には各種操作機構を内蔵するフロントカバー３２があり、その上方に前輪１０，１０を操向操作するハンドル３４が設けられている。エンジンカバー３０及びフロントカバー３２の下端左右両側は水平状のフロアステップ３５になっている。フロアステップ３５は一部格子状になっており（図２参照）、座席３１に着座して機体を操縦する操縦者が前輪１０及び後輪１１を見通せることができて操縦が容易な構成となっていると共に、該ステップ３５を歩く作業者の靴についた泥が圃場に落下するようになっている。フロアステップ３５の後部は、後輪フェンダを兼ねるリヤステップ３６となっている。   The upper part of the engine 20 is covered with an engine cover 30, and a seat 31 is installed thereon. A front cover 32 incorporating various operation mechanisms is provided in front of the seat 31, and a handle 34 for steering the front wheels 10 and 10 is provided above the front cover 32. The engine cover 30 and the front cover 32 have horizontal floor steps 35 on the left and right sides of the lower end. The floor step 35 is partly in a lattice shape (see FIG. 2), and the operator who is seated on the seat 31 and controls the aircraft can see the front wheels 10 and the rear wheels 11 and is easy to control. At the same time, the mud on the shoes of the worker walking in the step 35 falls on the field. The rear portion of the floor step 35 is a rear step 36 that also serves as a rear wheel fender.

また、走行車体２の前部左右両側には、補給用の苗を載せておく予備苗載台３８，３８が機体よりも側方に張り出す位置と内側に収納した位置とに回動可能に設けられている。
昇降リンク装置３は平行リンク構成であって、１本の上リンク４０と左右一対の下リンク４１，４１を備えている。これらリンク４０，４１，４１は、その基部側がメインフレーム１５の後端部に立設した背面視門形のリンクベースフレーム４２に回動自在に取り付けられ、先端側には縦リンク４３が連結されている。そして、縦リンク４３の下端部に苗植付部４に回転自在に支承された連結軸４４が挿入連結され、連結軸４４を中心として苗植付部４がローリング自在に連結されている。メインフレーム１５に固着した支持部材と上リンク４０に一体形成したスイングアーム（図示せず）の先端部との間に昇降油圧シリンダ４６が設けられており、該シリンダ４６を油圧で伸縮させることにより、上リンク４０が上下に回動し、苗植付部４がほぼ一定姿勢のまま昇降する。 Further, on both the left and right sides of the front part of the traveling vehicle body 2, the spare seedling platforms 38, 38 on which the replenishment seedlings are placed can be pivoted to a position projecting laterally from the machine body and a position housed inside. Is provided.
The elevating link device 3 has a parallel link configuration, and includes one upper link 40 and a pair of left and right lower links 41, 41. These links 40, 41, 41 are pivotally attached to a rear-view portal-shaped link base frame 42 erected on the rear end of the main frame 15, and a vertical link 43 is connected to the tip side. ing. And the connecting shaft 44 rotatably supported by the seedling planting part 4 is inserted and connected to the lower end part of the vertical link 43, and the seedling planting part 4 is connected so as to be able to roll around the connecting shaft 44. An elevating hydraulic cylinder 46 is provided between a support member fixed to the main frame 15 and a tip of a swing arm (not shown) integrally formed with the upper link 40, and the cylinder 46 is expanded and contracted by hydraulic pressure. The upper link 40 pivots up and down, and the seedling planting part 4 moves up and down while maintaining a substantially constant posture.

苗植付部４は６条植の構成で、フレームを兼ねる伝動ケース５０、マット苗を載せて左右往復動し苗を一株分づつ各条の苗取出口５１ａ…に供給するとともに横一列分の苗を全て苗取出口５１ａ…に供給すると苗送りベルト５１ｂ…により苗を下方に移送する苗載台５１、苗取出口５１ａ…に供給された苗を圃場に植付ける苗植付装置５２…、次行程における機体進路を表土面に線引きする左右一対の線引きマーカ（図示せず）等を備えている。苗植付部４の下部には中央にセンターフロート５５、その左右両側にサイドフロート５６，５６がそれぞれ設けられている。これらフロート５５，５６，５６を圃場の泥面に接地させた状態で機体を進行させると、フロート５５，５６，５６が泥面を整地しつつ滑走し、その整地跡に苗植付装置５２…により苗が植付けられる。各フロート５５，５６，５６は圃場表土面の凹凸に応じて前端側が上下動するように回動自在に取り付けられており、植付作業時にはセンターフロート５５の前部の上下動が迎角制御センサ（図示せず）により検出され、その検出結果に応じ前記昇降油圧シリンダ４６を制御する油圧バルブを切り替えて苗植付部４を昇降させることにより、苗の植付深さを常に一定に維持する。   The seedling planting section 4 has a six-row planting structure, a transmission case 50 that also serves as a frame, a mat seedling, and a left and right reciprocating motion to supply seedlings one by one to the seedling outlet 51a of each row and for one horizontal row When all the seedlings are supplied to the seedling outlet 51a ..., the seedling mount 51 for transferring the seedling downward by the seedling feeding belt 51b ..., the seedling planting device 52 for planting the seedling supplied to the seedling outlet 51a ... in the field. A pair of left and right drawing markers (not shown) for drawing the aircraft course in the next stroke to the topsoil surface are provided. In the lower part of the seedling planting part 4, a center float 55 is provided in the center, and side floats 56, 56 are provided on the left and right sides thereof. When the aircraft is advanced with these floats 55, 56, 56 in contact with the mud surface of the field, the floats 55, 56, 56 slide while leveling the mud surface, and the seedling planting device 52 ... Seedlings are planted. Each of the floats 55, 56, and 56 is rotatably mounted so that the front end side moves up and down in accordance with the unevenness of the field topsoil surface, and the vertical movement of the front part of the center float 55 is an angle-of-attack control sensor during planting work. The planting depth of the seedling is always kept constant by switching the hydraulic valve that controls the lifting hydraulic cylinder 46 according to the detection result to raise and lower the seedling planting unit 4 according to the detection result. .

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

苗植付部４には圃場の乱れた泥土面を整地して均す整地ロータ２７（左右サイドフロート５６，５６の各々の前方に配置された左右整地ロータ２７ａ，２７ａ，センターフロート５５の前方に配置された中央整地ロータ２７ｂ）が取り付けられている。また、苗載台５１は苗植付部４のフレームを兼ねる伝動ケース５０に基部が固定された矩形状の支持枠体６５の支持ローラ６５ａをレールとして左右方向にスライドする構成である。   The seedling planting section 4 is provided with a leveling rotor 27 for leveling and leveling the mud surface disturbed in the field (in front of the left and right leveling rotors 27a and 27a and the center float 55 arranged in front of each of the left and right side floats 56 and 56). An arranged central leveling rotor 27b) is mounted. In addition, the seedling stage 51 is configured to slide in the left-right direction using a support roller 65a of a rectangular support frame body 65 whose base is fixed to the transmission case 50 that also serves as a frame of the seedling planting unit 4 as a rail.

図３の側面図と図４の背面図に整地ロータ支持構造の要部を示し、図５に整地ロータ２７とフロート５５，５６と苗植付装置５２部分の要部平面図を示す。
ここで、整地ロータ２７の支持構造について説明する。 The principal part of the leveling rotor support structure is shown in the side view of FIG. 3 and the rear view of FIG. 4, and the principal part top view of the leveling rotor 27, the floats 55 and 56, and the seedling planting apparatus 52 part is shown in FIG.
Here, the support structure of the leveling rotor 27 will be described.

苗載台５１の前記支持枠体６５に基部を固着した左右アーム６５ｃ，６５ｃの先端に回動自在に支持された梁部材６６と該梁部材６６の両端に固着した左右支持アーム６７，６７と該支持アーム６７，６７に各々回動自在に取り付けられた左右整地ロータ支持フレーム６８，６８が設けられている。該左右ロー夕支持フレーム６８，６８の下端には左右整地ロータ２７ａ，２７ａの駆動軸７０ａ，７０ａが回転自在に支持されて取り付けられている。また、該左右整地ロータ支持フレーム６８，６８の下端部近くは伝動ケース５０に基部が回動自在に取り付けられた左右連結部材７１，７１が連結されている。   A beam member 66 rotatably supported at the tips of left and right arms 65c and 65c having bases fixed to the support frame body 65 of the seedling stage 51, and left and right support arms 67 and 67 fixed to both ends of the beam member 66; Left and right leveling rotor support frames 68 and 68 are provided on the support arms 67 and 67 so as to be rotatable. Drive shafts 70a and 70a of left and right leveling rotors 27a and 27a are rotatably supported and attached to lower ends of the left and right low support frames 68 and 68, respectively. Further, near the lower ends of the left and right leveling rotor support frames 68, 68 are connected to left and right connecting members 71, 71 whose bases are rotatably attached to the transmission case 50.

そして、左右ロー夕支持フレーム６８，６８の下端が左右整地ロータ２７ａ，２７ａを回転自在に支持する部位（軸受け部）６９，６９は、各左右後輪１１，１１の左右中心線よりも機体中央よりにずれた位置になっており、左右後輪１１，１１により掻き乱された泥面は左右整地ロータ２７ａ，２７ａにより良好に整地され、適切な苗の移植作業が行なえる。更には、左右ロー夕支持フレーム６８，６８の下端が左右整地ロータ２７ａ，２７ａを回転自在に支持する部位（軸受け部）６９，６９は、各左右後輪１１，１１の左右中心線と左右補助車輪１１ａ，１１ａの左右中心線との間に位置する構成となっており、左右後輪１１，１１及び左右補助車輪１１ａ，１１ａにより掻き乱された泥面は左右整地ロータ２７ａ，２７ａにより良好に整地され、適切な苗の移植作業が行なえる。   The portions (bearing portions) 69 and 69 where the lower ends of the left and right low support frames 68 and 68 rotatably support the left and right leveling rotors 27a and 27a are located in the center of the body rather than the left and right center lines of the left and right rear wheels 11 and 11, respectively. The mud surface that has been displaced further and is disturbed by the left and right rear wheels 11 and 11 is well leveled by the left and right leveling rotors 27a and 27a, and an appropriate seedling transplanting operation can be performed. Furthermore, the portions (bearing portions) 69 and 69 where the lower ends of the left and right low support frames 68 and 68 rotatably support the left and right ground leveling rotors 27a and 27a are provided on the left and right center lines of the left and right rear wheels 11 and 11, respectively. The structure is located between the left and right center lines of the wheels 11a, 11a, and the mud surface disturbed by the left and right rear wheels 11, 11 and the left and right auxiliary wheels 11a, 11a is improved by the left and right leveling rotors 27a, 27a. The ground is leveled and transplanting of appropriate seedlings can be performed.

また、フロート５５，５６との配置位置の関係でセンターフロート５５の前方にある中央整地ロータ２７ｂはサイドフロート５６の前方にある左右整地ロータ２７ａより前方に配置されている。即ち、左右整地ロータ２７ａ，２７ａの駆動軸７０ａ，７０ａの各々の内側から機体前方に向けて左右チェーンケース７３，７３を配置し、該左右チェーンケース７３，７３間に中央整地ロータ２７ｂの駆動軸７０ｂを軸支して、中央整地ロータ２７ｂを設けている。   Further, the central leveling rotor 27 b in front of the center float 55 is disposed in front of the left and right leveling rotor 27 a in front of the side float 56 due to the arrangement position with the floats 55 and 56. That is, left and right chain cases 73 and 73 are arranged from the inner side of the drive shafts 70a and 70a of the left and right leveling rotors 27a and 27a toward the front of the machine body, and the drive shaft of the central leveling rotor 27b is interposed between the left and right chain cases 73 and 73. A central leveling rotor 27b is provided to support 70b.

そして、後輪１１のギアケース１８内のギアから自在継手７２を介して左整地ロータ２７ａの駆動軸７０ａに動力を伝達し、該左駆動軸７０ａから左チェーンケース７３内のチェーンにて中央整地ロータ２７ｂの駆動軸７０ｂに伝達し、そして、駆動軸７０ｂから右チェーンケース７３内のチェーンにて右整地ロータ２７ａの駆動軸７０ａに動力を伝達する構成となっている。   Then, power is transmitted from the gear in the gear case 18 of the rear wheel 11 to the drive shaft 70a of the left leveling rotor 27a via the universal joint 72, and the central leveling is performed from the left drive shaft 70a by the chain in the left chain case 73. The power is transmitted to the drive shaft 70b of the rotor 27b, and power is transmitted from the drive shaft 70b to the drive shaft 70a of the right leveling rotor 27a through the chain in the right chain case 73.

また、上記梁部材６６に基部が固着されたリンク部材７６の先端に上下方向の支持部材７７を回動自在に連結し、該支持部材７７に設けた複数の係合孔７７ａ，７７ｂ，７７ｃに上部を係合させたスプリング７８を介して、中央整地ロータ２７ｂの前部はその左右方向中央部が吊り下げられた構成となっている。   Further, a support member 77 in the vertical direction is rotatably connected to the tip of the link member 76 whose base is fixed to the beam member 66, and a plurality of engagement holes 77 a, 77 b, 77 c provided in the support member 77 are connected. The front part of the center leveling rotor 27b is suspended from the center part in the left-right direction via a spring 78 engaged with the upper part.

次に、整地ロータ２７を上下位置調節及び収納位置に操作する構成を説明する。
苗載台５１の前記支持枠体６５の左右方向中央部に基部を固定して下方に向けて設けたコ字状体８０ａに機体前方に向けて枢支ピン８１ｂを固定し、該枢支ピン８１ｂに整地ロータ上下位置調節レバー８１を機体左右方向に回動自在に枢支している。また、整地ロータ上下位置調節レバー８１の下端部には折曲片８２が固着されており、整地ロータ上下位置調節レバー８１が機体左右方向に回動操作されると、支持枠体６５の両側辺部材６５ｂに回動自在に支持された梁部材６６に固着された突出部６６ａに下方から接当して折曲片８２が上下に回動する。折曲片８２は前記突出部６６ａの下方と接当しているので、該突出部６６ａが整地ロータ上下位置調節レバー８１の機体右方向（図４の矢印Ｓ方向）の回動で、上向きに梁部材６６を中心として回動する。該梁部材６６の上向きの回動により左右支持アーム６７，６７と左右整地ロータ支持フレーム６８，６８とが上方に移動するので、左右整地ロータ２７ａ，２７ａは上方に移動し、且つ、梁部材６６に基部が固着されたリンク部材７６と支持部材７７も上方に移動しスプリング７８を介して、中央整地ロータ２７ｂの前部も上方に移動する。 Next, the structure which operates the leveling rotor 27 to a vertical position adjustment and a storage position is demonstrated.
A pivot pin 81b is fixed to the U-shaped body 80a provided at the center of the support frame 65 of the seedling stage 51 in the left-right direction and provided downward, and is fixed to the front of the machine body. A ground leveling rotor vertical position adjusting lever 81 is pivotally supported by 81b so as to be rotatable in the left-right direction of the machine body. Further, a bent piece 82 is fixed to the lower end portion of the leveling rotor vertical position adjusting lever 81, and when the leveling rotor vertical position adjusting lever 81 is rotated in the left-right direction of the machine body, both sides of the support frame 65 are arranged. The bent piece 82 is rotated up and down by coming into contact with the protrusion 66a fixed to the beam member 66 rotatably supported by the member 65b from below. Since the bent piece 82 is in contact with the lower portion of the projecting portion 66a, the projecting portion 66a is turned upward by rotating the leveling rotor vertical position adjusting lever 81 in the right direction of the machine body (the direction of arrow S in FIG. 4). It rotates around the beam member 66. Since the left and right support arms 67 and 67 and the left and right leveling rotor support frames 68 and 68 are moved upward by the upward rotation of the beam member 66, the left and right leveling rotors 27a and 27a are moved upward and the beam member 66 is moved. The link member 76 and the support member 77 to which the base portion is fixed are also moved upward, and the front portion of the central leveling rotor 27b is also moved upward via the spring 78.

逆に、整地ロータ上下位置調節レバー８１を機体左方向に回動すると、折曲片８２は前記突出部６６ａの下方から離れるので整地ロータ２７の重みで突出部６６ａは下向きに梁部材６６を中心として回動する。該梁部材６６の下向きの回動により左右支持アーム６７，６７と左右整地ロータ支持フレーム６８，６８とが下方に移動するので、左右整地ロータ２７ａ，２７ａは下方に移動し、且つ、梁部材６６に基部が固着されたリンク部材７６と支持部材７７も下方に移動しスプリング７８を介して、中央整地ロータ２７ｂの前部も下方に移動する。   On the contrary, when the leveling rotor up / down position adjusting lever 81 is rotated to the left of the machine body, the bent piece 82 is separated from the lower side of the protruding portion 66a, so that the protruding portion 66a is centered on the beam member 66 downward by the weight of the leveling rotor 27. Rotate as Since the left and right support arms 67 and 67 and the left and right leveling rotor support frames 68 and 68 are moved downward by the downward rotation of the beam member 66, the left and right leveling rotors 27a and 27a are moved downward and the beam member 66 is moved downward. The link member 76 and the support member 77 to which the base portion is fixed are also moved downward, and the front portion of the central leveling rotor 27b is also moved downward via the spring 78.

そして、整地ロータ上下位置調節レバー８１は、苗植付部４の中央部（若しくは、略中央部）で操縦座席３１と苗載台５１との間に配置されて操縦座席３１の側に向かって伸びた構成となっており、また、その操作方向は機体左右方向であるから、整地ロータ２７の上下動を行う場合の操作が容易で、且つ、苗載台５１の前方側に機体前後方向で幅狭いスペースに配置できて機体全長を短く構成でき、更に、機体の左右バランスも良くて、適正な苗移植作業が行なえる。また、整地ロータ上下位置調節レバー８１は、苗植付部４を苗移植作業状態の下降させた状態でも操作できるので、適切な上下高さ調節が行なえる。   The leveling rotor vertical position adjusting lever 81 is disposed between the control seat 31 and the seedling mount 51 at the central portion (or substantially central portion) of the seedling planting portion 4 toward the control seat 31. Since the operation direction is the left and right direction of the machine body, the operation when the leveling rotor 27 is moved up and down is easy, and the front side of the seedling stage 51 is arranged in the front and rear direction of the machine body. It can be arranged in a narrow space and the length of the aircraft can be shortened. Furthermore, the aircraft has a good left / right balance, and appropriate seedling transplanting work can be performed. Further, since the leveling rotor vertical position adjusting lever 81 can be operated even when the seedling planting portion 4 is lowered in the seedling transplanting operation state, appropriate vertical height adjustment can be performed.

また、整地ロータ２７を整地作用しない収納位置まで上動させるには、整地ロータ上下位置調節レバー８１を大きく右方向に（収納操作位置まで）操作すると、整地ロータ２７の上動操作と同じ要領で、整地ロータ２７を収納位置、すなわち苗載台５１の裏面側に収納状態となるように移動させることができる。   Further, in order to move the leveling rotor 27 to the storage position where the leveling operation is not performed, the leveling rotor vertical position adjusting lever 81 is operated to the right (to the storage operation position) in the same manner as the upward operation of the leveling rotor 27. The leveling rotor 27 can be moved to the storage position, that is, to the back side of the seedling stage 51 so as to be in the storage state.

尚、８１ａは整地ロータ上下位置調節レバー８１のレバーガイドで、レバー操作時に操作位置でレバーを係合させて固定する係合溝が設けられている。
本実施例では整地ロータ上下位置調節レバー８１の標準位置で圃場面より４０ｍｍの高さにある整地ロータ２７ａ，２７ｂを図４の矢印Ｓ方向への回動で標準位置より最大１５ｍｍ高くでき、図４の矢印Ｓ方向の反対方向への回動で標準位置より最大１５ｍｍ低くできるように設定している。この整地ロータ上下位置調節レバー８１による整地ロータ２７の上下高さ調節は、フロート５５，５６の後部回動支点を上下動させて苗の植付深さの変更を行なう際に、同時に行なって、適正な整地作用が行なえるようにするものである。 Reference numeral 81a denotes a lever guide for the leveling rotor vertical position adjusting lever 81, which is provided with an engaging groove for engaging and fixing the lever at the operating position when the lever is operated.
In the present embodiment, the leveling rotors 27a and 27b at a standard position of the leveling rotor up / down position adjusting lever 81 at a height of 40 mm from the field scene can be raised by up to 15 mm from the standard position by turning in the direction of arrow S in FIG. 4 is set so that it can be lowered by up to 15 mm from the standard position by turning in the direction opposite to the arrow S direction. The vertical height adjustment of the leveling rotor 27 by the leveling rotor vertical position adjusting lever 81 is performed at the same time when the planting depth of the seedling is changed by moving the rear pivots of the floats 55 and 56 up and down. Appropriate ground leveling can be performed.

特に、植付作業時に苗の植付深さを常に一定に維持するために、苗植付部４を昇降制御する為のセンサとして機能するセンターフロート５５は、前後長を長くして接地面積を前後方向で長くしないと適切な苗植付部４の昇降制御が行えない。そこで、センターフロート５５の前方にある中央整地ロータ２７ｂは、サイドフロート５６の前方にある左右整地ロータ２７ａよりも機体前方に位置させた構成としているが、中央整地ロータ２７ｂと左右整地ロータ２７ａとはその動力伝達機構である左右チェーンケース７３，７３にて一体の構成とし、整地ロータ上下位置調節レバー８１で作動する一つの上下動機構で上下調節及び収納位置への移動が行なえるようになっているので、構成が簡潔で、軽量な整地装置付き田植機を得ることができ、軽量であることにより優れた水田での走行性能を発揮して、良好な苗の移植作業が行なえる。   In particular, in order to keep the seedling planting depth constant at the time of planting work, the center float 55 that functions as a sensor for controlling the raising and lowering of the seedling planting unit 4 has a long front and rear length and a ground contact area. If it is not long in the front-rear direction, appropriate raising / lowering control of the seedling planting part 4 cannot be performed. Therefore, the central leveling rotor 27b in front of the center float 55 is configured to be positioned in front of the fuselage with respect to the left and right leveling rotor 27a in front of the side float 56, but the central leveling rotor 27b and the left and right leveling rotor 27a are different from each other. The left and right chain cases 73, 73, which are the power transmission mechanism, are integrated with each other, and can be adjusted up and down and moved to the storage position by one vertical movement mechanism operated by the leveling rotor vertical position adjustment lever 81. Therefore, it is possible to obtain a rice transplanter with a leveling device that is simple in construction and light in weight, and exhibits excellent running performance in paddy fields due to its light weight, so that a good seedling transplanting operation can be performed.

ところが、前後長を長くして接地面積を前後方向で長くしたセンターフロート５５の前方にある中央整地ロータ２７ｂを左右後輪１１，１１間に配置させて機体全長を短い構成にしている為に、該中央整地ロータ２７ｂが昇降リンク装置３の左右下リンク４１，４１の下方に位置することとなり、苗植付部４を上昇させようとした時、左右下リンク４１，４１に中央整地ロータ２７ｂが衝突してしまって苗植付部４を上昇できない構成となってしまう問題がある。   However, because the central leveling rotor 27b in front of the center float 55 with a longer front-rear length and a longer ground contact area in the front-rear direction is disposed between the left and right rear wheels 11, 11, the overall length of the aircraft is shortened. The center leveling rotor 27b is positioned below the left and right lower links 41, 41 of the lifting link device 3. When the seedling planting part 4 is to be raised, the center leveling rotor 27b is placed on the left and right lower links 41, 41. There is a problem that it becomes a configuration in which the seedling planting part 4 cannot be raised due to a collision.

そこで、センターフロート５５の前方にある中央整地ロータ２７ｂは、支持部材７７に設けた複数の係合孔７７ａ，７７ｂ，７７ｃに上部を係合させたスプリング７８を介して、中央整地ロータ２７ｂの前部が吊り下げられた構成としている。従って、苗植付部４を下降させて整地ロータ２７で整地しながら苗植付け作業を行なっている時には、中央整地ロータ２７ｂはその重量でスプリング７８が少し伸びて左右整地ロータ２７ａと同じ高さになり適正な整地作業が行なえ、また、苗植付部４を上昇させる際には、中央整地ロータ２７ｂの上面が左右下リンク４１，４１に接当して、苗植付部４が上昇するにつれてスプリング７８は大きく伸びていき中央整地ロータ２７ｂは下方を向く姿勢に変更されて、苗植付部４を支障なく上昇させることができる。   Therefore, the central leveling rotor 27b in front of the center float 55 is disposed in front of the central leveling rotor 27b via a spring 78 having upper portions engaged with a plurality of engagement holes 77a, 77b, 77c provided in the support member 77. The part is suspended. Therefore, when the seedling planting part 4 is lowered and the seedling planting operation is performed while leveling with the leveling rotor 27, the center leveling rotor 27b has the spring 78 slightly extended by its weight so that it is as high as the left and right leveling rotor 27a. Therefore, when the seedling planting part 4 is raised, the upper surface of the center leveling rotor 27b comes into contact with the left and right lower links 41, 41, and the seedling planting part 4 rises. The spring 78 is greatly extended, and the center leveling rotor 27b is changed to a posture facing downward, so that the seedling planting portion 4 can be raised without any trouble.

また、中央整地ロータ２７ｂは、支持部材７７に設けた複数の係合孔７７ａ，７７ｂ，７７ｃに上部を係合させたスプリング７８を介して、中央整地ロータ２７ｂの前部が吊り下げられた構成としているので、スプリング７８の製造誤差や中央整地ロータ２７ｂの重量誤差等にて、苗植付部４を下降させた時に、中央整地ロータ２７ｂが左右整地ロータ２７ａと高さが異なる場合には、スプリング７８の上部を係合させる係合孔７７ａ，７７ｂ，７７ｃを変更して、中央整地ロータ２７ｂの上下高さを調節して、中央整地ロータ２７ｂを左右整地ロータ２７ａと同じ高さにして適正な整地作業を行なうようにすることができる。   Further, the central leveling rotor 27b has a configuration in which the front portion of the central leveling rotor 27b is suspended via a spring 78 having upper portions engaged with a plurality of engagement holes 77a, 77b, 77c provided in the support member 77. Therefore, when the seedling planting part 4 is lowered due to a manufacturing error of the spring 78, a weight error of the center leveling rotor 27b, etc., when the center leveling rotor 27b is different in height from the left and right leveling rotor 27a, The engagement holes 77a, 77b, 77c for engaging the upper part of the spring 78 are changed to adjust the vertical height of the central leveling rotor 27b so that the central leveling rotor 27b is the same height as the left and right leveling rotor 27a. Smooth grading work can be performed.

更に、支持部材７７と中央整地ロータ２７ｂとの間にダンパーを介在させて、中央整地ロータ２７ｂがスプリング７８にて上下に震動するのを防止する構成とすれば、更に、整地性能が良くなる。また、スプリング７８の上部を係合する孔を変更する構成に変えて、調節レバーを設けて、スプリング７８と支持部材７７との係合位置を調節する構成としても良い。   Further, if a damper is interposed between the support member 77 and the central leveling rotor 27b to prevent the central leveling rotor 27b from shaking up and down by the spring 78, the leveling performance is further improved. Further, instead of changing the hole for engaging the upper part of the spring 78, an adjustment lever may be provided to adjust the engagement position between the spring 78 and the support member 77.

一方、中央整地ロータ２７ｂの左右チェーンケース７３，７３は、苗植付部４を昇降制御するセンサとしての機能を持つセンターフロート５５と左右後輪１１，１１（左右補助車輪１１ａ，１１ａ）との間に位置する構成となっているので、左右後輪１１，１１（左右補助車輪１１ａ，１１ａ）が持ち上げた泥土がセンターフロート５５上に落下するのを左右チェーンケース７３，７３が防止し、センターフロート５５の前部は適正に泥面に追従して上下動するので苗植付部４は適正に昇降制御されて、良好な苗植付け作業が行なえる。   On the other hand, the left and right chain cases 73 and 73 of the center leveling rotor 27b are formed by the center float 55 having a function as a sensor for controlling the raising and lowering of the seedling planting portion 4 and the left and right rear wheels 11 and 11 (left and right auxiliary wheels 11a and 11a). The left and right chain cases 73 and 73 prevent the mud soil lifted by the left and right rear wheels 11 and 11 (left and right auxiliary wheels 11a and 11a) from falling on the center float 55 because the structure is located between them. Since the front part of the float 55 moves up and down appropriately following the mud surface, the seedling planting unit 4 is appropriately controlled to move up and down, and a good seedling planting operation can be performed.

最後に、フロアステップ３５の他の実施例を説明する。
フロアステップ３５は、前後長さが長く、左右幅も広いので、合成樹脂で成型する場合も、鉄板等でプレス成型する場合も、型が大型となり、非常に高価な生産設備費用が必要となる。然も、乗用型田植機においては、４条植え・５条植えの小型と６条植え・８条植えの大型とでは、フロアステップ３５の広さが異なるので、複数の型が必要となり、更に、生産設備費用が高価なものとなっていた。 Finally, another embodiment of the floor step 35 will be described.
Since the floor step 35 has a long front and rear length and wide left and right widths, the mold becomes large in both cases of molding with synthetic resin and press molding with an iron plate or the like, which requires very expensive production equipment costs. . However, in the riding type rice transplanter, the size of the floor step 35 is different between the 4-row and 5-row small size and the 6-row and 8-row large size, so multiple types are required. Production equipment costs were expensive.

そこで、図７に示すように、フロアステップ３５をステップフロント部３５ａと左右ステップ部２５ｂと中央ステップ部３５ｃとに分割構成し、６条植え・８条植えの大型田植機の場合は、図７の（Ａ）に示すように、成型した各ステップ部３５ａ，３５ｂ，３５ｃをそのまま使用して田植機を生産する。そして、４条植え・５条植えの小型田植機の場合は、図７の（Ｂ）に示すように、成型したステップフロント部３５ａはそのまま使用し、左右ステップ部２５ｂと中央ステップ部３５ｃとは図７の（Ａ）の破線部で切断して使用して田植機を生産する。このようにすれば、型自体も小さくなって型費が安くなり、然も、型数も少なくなるので、生産設備費用が安価になり、安価な乗用型田植機を提供することができる。   Therefore, as shown in FIG. 7, the floor step 35 is divided into a step front portion 35a, a left and right step portion 25b, and a central step portion 35c. As shown in (A), a rice transplanter is produced using the molded step portions 35a, 35b, and 35c as they are. In the case of a 4-row or 5-row small rice transplanter, as shown in FIG. 7B, the molded step front portion 35a is used as it is, and the left and right step portions 25b and the central step portion 35c are A rice transplanter is produced by cutting along the broken line in FIG. In this way, the mold itself becomes smaller and the mold cost is reduced, and the number of molds is also reduced, so that the production equipment cost is reduced and an inexpensive riding type rice transplanter can be provided.

更に、図８に示すように、フロアステップ３５とリヤステップ３６とを合わせたステップを前後２分割構成とした場合の後部ステップ部の生産例を説明する。後部の後輪フェンダを兼ねる後部ステップ部３５ｄは、上下高さが高いものとなるので、鉄板を１回で絞り成型することは、困難な形状となっている。   Further, as shown in FIG. 8, an example of production of the rear step unit when the step including the floor step 35 and the rear step 36 is divided into two front and rear parts will be described. Since the rear step portion 35d that also serves as the rear rear fender has a high vertical height, it is difficult to draw the iron plate once.

そこで、後部ステップ部３５ｄの後端部のフェンダ部を上下２分割構成として、１つの型で同時に成型し、成型後に両者をスポット溶接して生産する。このようにすれば、上下高さが低くなるので、１つの型にて１回絞りで成型でき、生産コストが安くなり、安価な乗用型田植機を提供することができる。   Therefore, the fender portion at the rear end portion of the rear step portion 35d is divided into two parts in the upper and lower directions, and is molded simultaneously with one mold, and both are spot welded after the molding. In this way, since the vertical height is reduced, it is possible to mold with a single die with a single mold, the production cost is reduced, and an inexpensive riding type rice transplanter can be provided.

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

本発明の実施例の乗用型田植機の側面図である。It is a side view of the riding type rice transplanter of the Example of this invention. 図１の乗用型田植機の平面図である。It is a top view of the riding type rice transplanter of FIG. 図１の苗植付部の要部側面図である。It is a principal part side view of the seedling planting part of FIG. 図１の苗載台の支持構造の要部正面図である。It is a principal part front view of the support structure of the seedling mounting stand of FIG. 図１の苗植付部の要部平面図である。It is a principal part top view of the seedling planting part of FIG. 要部の拡大平面図である。It is an enlarged plan view of the principal part. フロアステップの製造例を示す作用説明用平面図である。It is a top view for effect | action description which shows the manufacture example of a floor step. 他のフロアステップの製造例を示す作用説明用図である。It is an effect explanatory view showing a manufacturing example of another floor step.

２ 走行車体
３ 昇降リンク装置
４ 苗植付部
１１ 左右後輪
２７ａ 左右整地作業装置（左右整地ロータ）
２７ｂ 中央整地作業装置（中央整地ロータ）
５５ センターフロート
５６ サイドフロート
７３ 左右連結部材（左右伝動ケース）
７８ 支持機構（スプリング） 2 Traveling vehicle body 3 Elevating link device 4 Seedling planting part 11 Left and right rear wheels 27a Left and right leveling work device (left and right leveling rotor)
27b Central leveling equipment (central leveling rotor)
55 Center float 56 Side float 73 Left and right connecting members (left and right transmission case)
78 Support mechanism (spring)

Claims (3)

左右後輪（１１）を装備した走行車体（２）の後側に昇降リンク装置（３）を介して苗植付部（４）を装着し、該苗植付部（４）に機体正面視で左右後輪（１１）間に位置するセンターフロート（５５）の前方には機体側面視で左右後輪（１１）間に中央整地作業装置（２７ｂ）を設け、左右後輪（１１）の後方若しくは外側方に位置するサイドフロート（５６）の前方には機体側面視で左右後輪（１１）の後方に左右整地作業装置（２７ａ）を設けた苗移植機において、中央整地作業装置（２７ｂ）の左右両側と左右整地作業装置（２７ａ）の各々の内端側とを左右伝動ケース（７３）にて連結して一体構成として上下位置調節自在に設けたことを特徴とする苗移植機。 On the rear side of the vehicle body equipped with left and right rear wheels (11) (2) via a lifting linkage (3) mounted seedling planting unit (4), the aircraft front view in該苗planting unit (4) In the front of the center float (55) located between the left and right rear wheels (11), a central leveling device (27b) is provided between the left and right rear wheels (11) in a side view of the fuselage, and the rear of the left and right rear wheels (11). or the left and right leveling working device at the rear of the left and right rear wheels (11) in the fuselage side view in front of the side floats (56) located outward in the seedling transplantation machine provided with a (27a), the central ground leveling work unit (27b) A seedling transplanter characterized in that the right and left sides of each of the two and the inner end side of each of the left and right leveling work devices (27a) are connected by a left and right transmission case (73) so that the vertical position can be adjusted as an integrated structure. 左右後輪（１１）を装備した走行車体（２）の後側に昇降リンク装置（３）を介して苗植付部（４）を装着し、該苗植付部（４）に機体正面視で左右後輪（１１）間に位置するセンターフロート（５５）の前方には機体側面視で左右後輪（１１）間に中央整地作業装置（２７ｂ）を設け、左右後輪（１１）の後方若しくは外側方に位置するサイドフロート（５６）の前方には機体側面視で左右後輪（１１）の後方に左右整地作業装置（２７ａ）を設けた苗移植機において、中央整地作業装置（２７ｂ）の左右両側と左右整地作業装置（２７ａ）の各々の内端側とを左右連結部材（７３）にて連結し、該左右連結部材（７３）をセンターフロート（５５）と左右後輪（１１）間に配置して一体構成として上下位置調節自在に設けたことを特徴とする苗移植機。 A seedling planting part (4) is mounted on the rear side of the traveling vehicle body (2) equipped with left and right rear wheels (11) via a lifting link device (3), and the seedling planting part (4) is viewed from the front of the body. In the front of the center float (55) located between the left and right rear wheels (11), a central leveling device (27b) is provided between the left and right rear wheels (11) in a side view of the fuselage, and the rear of the left and right rear wheels (11). Alternatively, in the seedling transplanting machine provided with the left and right leveling work device (27a) behind the left and right rear wheels (11) in front of the side float (56) located on the outer side, the central leveling work device (27b) left and right sides and the left and right leveling working device of connecting the respective inner end side of (27a) with right and left connecting members (73), left and right connecting member center float (55) to (73) and left and right rear wheels (11) It is characterized by being arranged in between so that the vertical position can be adjusted as an integrated structure That seedling transplanting machine. 昇降リンク装置（３）にて苗植付部（４）を上昇させた時に中央整地作業装置（２７ｂ）が下動するように、左右整地作業装置（２７ａ）に対して中央整地作業装置（２７ｂ）を上下動自在に支持機構（７８）にて支持したことを特徴とする請求項1又は請求項２記載の苗移植機。The central leveling work device (27b) with respect to the left and right leveling work device (27a) so that the central leveling work device (27b) moves down when the seedling planting part (4) is raised by the lifting link device (3). The seedling transplanter according to claim 1 or 2, wherein said support mechanism (78) is supported so as to be movable up and down.
JP2006050521A 2006-02-27 2006-02-27 Seedling transplanter Expired - Fee Related JP4389122B2 (en)

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CN2006101089605A CN101027958B (en) 2006-02-27 2006-07-31 Seedling transplanter

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Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4500527B2 (en) * 2003-10-22 2010-07-14 三菱農機株式会社 Transplanter
JP4775106B2 (en) * 2006-05-12 2011-09-21 井関農機株式会社 Seedling transplanter
KR100873651B1 (en) * 2008-08-21 2008-12-11 김광한 Planter lawn grass
JP5487578B2 (en) 2008-08-27 2014-05-07 井関農機株式会社 Direct seeding machine
JP5120282B2 (en) * 2009-01-30 2013-01-16 井関農機株式会社 Working machine
JP5600892B2 (en) * 2009-06-18 2014-10-08 井関農機株式会社 Working machine
KR101331849B1 (en) * 2010-08-18 2013-11-22 이세키노우키가부시키가이샤 Seeding transplanter
CN202496195U (en) * 2011-02-09 2012-10-24 井关农机株式会社 Transplanting machine
CN102823366B (en) * 2011-06-15 2016-12-21 井关农机株式会社 Seeding transplant machine
JP5741250B2 (en) * 2011-06-27 2015-07-01 井関農機株式会社 Seedling transplanter
KR101530239B1 (en) * 2012-04-27 2015-06-22 이세키노우키가부시키가이샤 Seedling transplanter
WO2014080485A1 (en) * 2012-11-21 2014-05-30 ヤンマー株式会社 Rice transplanter
KR101654094B1 (en) * 2013-06-04 2016-09-05 이세키노우키가부시키가이샤 Seedling transplanter
JP5888352B2 (en) * 2014-02-10 2016-03-22 井関農機株式会社 Seedling transplanter
JP6290661B2 (en) * 2014-03-11 2018-03-07 八鹿鉄工株式会社 Transplanter
JP2016086760A (en) * 2014-11-06 2016-05-23 ヤンマー株式会社 Rice transplanter
JP6589379B2 (en) * 2015-05-29 2019-10-16 井関農機株式会社 Seedling transplanter
JP6885379B2 (en) * 2018-09-28 2021-06-16 井関農機株式会社 Seedling transplanter
JP7442406B2 (en) * 2020-07-14 2024-03-04 株式会社クボタ Paddy field work machine

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2972038B2 (en) * 1992-10-15 1999-11-08 三菱農機株式会社 Substitution equipment in simultaneous subculture planting machine
JP4125472B2 (en) * 2000-09-04 2008-07-30 三菱農機株式会社 Ground transplanting machine
JP4240792B2 (en) * 2000-09-29 2009-03-18 井関農機株式会社 Seedling transplanter
JP4419306B2 (en) * 2000-09-29 2010-02-24 井関農機株式会社 Agricultural machine
JP2003102219A (en) * 2001-09-27 2003-04-08 Mitsubishi Agricult Mach Co Ltd Transplanter
JP4500527B2 (en) * 2003-10-22 2010-07-14 三菱農機株式会社 Transplanter
JP2005211034A (en) * 2004-02-02 2005-08-11 Mitsubishi Agricult Mach Co Ltd Mechanism for driving ground-leveling rotor in transplanter
DE102004014677A1 (en) * 2004-03-25 2005-10-13 Basf Ag Fluidized bed process and reactor for carrying out exothermic chemical equilibrium reactions
JP4484591B2 (en) * 2004-06-03 2010-06-16 株式会社クボタ Ride type rice transplanter
JP2006158230A (en) * 2004-12-03 2006-06-22 Mitsubishi Agricult Mach Co Ltd Ground leveling rotor

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