JP2008199910A - Paddy field working machine - Google Patents

Paddy field working machine Download PDF

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JP2008199910A
JP2008199910A JP2007036482A JP2007036482A JP2008199910A JP 2008199910 A JP2008199910 A JP 2008199910A JP 2007036482 A JP2007036482 A JP 2007036482A JP 2007036482 A JP2007036482 A JP 2007036482A JP 2008199910 A JP2008199910 A JP 2008199910A
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paddy field
mudguard cover
field work
planting
seedling
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JP5204412B2 (en
JP2008199910A5 (en
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Takashi Amagasaki
喬士 尼崎
Hiroaki Kitai
浩昭 北井
Kazuyoshi Yamauchi
一喜 山内
Toru Tsukamoto
徹 塚本
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Kubota Corp
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Kubota Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a paddy field working machine in which a paddy field implement is liftably connected to the rear portion of a travel machine frame and which can surely prevent mud scattered backward by rear wheels from sticking and accumulating on the parts of the paddy field implement, and can facilitate maintenance works such as a cleaning work. <P>SOLUTION: This paddy field working machine is equipped with a mud-guard cover 55 for receiving mud scattered backward by the rear wheels 2 of the travel machine frame in front of the paddy field implement 6 at a position from its lower portion to the corresponding site above the shaft center of the rear wheels, and forming opening portions for maintenance in the mud-guard cover 55. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、走行機体の後部に苗植付け装置、水田直播装置、水田除草装置、などの水田作業装置を昇降自在に連結した水田作業機に関する。   The present invention relates to a paddy field work machine in which paddy field work devices such as a seedling planting device, a paddy field direct seeding device, and a paddy field weeding device are connected to a rear part of a traveling machine body so as to be movable up and down.

代表的な水田作業機である田植機においては、水田内での走行中に後輪によって後方に飛散された泥が苗植付け装置に付着堆積することが多い。そこで、例えば、特許文献１に示されているように、後輪の直後方に位置する整地フロートの前部上方に泥除けカバーを配備して、整地フロートに泥が付着堆積することを防止し、整地フロートが付着堆積した泥の重量で不当に沈下して田面の泥押しが多くなることを回避するよう構成したものが知られている。
特開平８−３０８３３４号公報 In a rice transplanter, which is a typical paddy field work machine, mud scattered backward by a rear wheel during traveling in a paddy field often deposits and accumulates on a seedling planting device. Therefore, for example, as shown in Patent Document 1, a mudguard cover is provided above the front part of the leveling float located immediately after the rear wheel to prevent mud from adhering to the leveling float, It is known that the construction is made so as to avoid undesirably sinking due to the weight of mud on which the leveling float adheres and accumulates and the mud pushing on the paddy surface increases.
JP-A-8-308334

上記構造では後輪の直後方に位置する整地フロートへの泥の付着堆積を防止することはできるが、土質および走行速度によっては泥が泥除けカバーを越えて上方にまで広く飛散して、苗植付け装置における機体前方に臨む各部に付着することがあり、摺動部に泥が付着して磨耗が早められたり、作動抵抗が大きくなって駆動負荷が増大する、等の不具合をもたらしやすくなるものであった。また、苗植付け装置の細部にまで泥が付着することで、植付け作業後の洗浄に多大な労力と時間を要するとともに、苗植付け装置における各種の調整作業にも支障をきたすものであった。   The above structure can prevent mud from accumulating on the leveling float located just behind the rear wheel, but depending on the soil and running speed, mud may spread widely upwards beyond the mudguard cover, and seedling planting It may adhere to each part facing the front of the machine in the device, and it tends to cause problems such as mud adhering to the sliding part and accelerated wear, or increased operating resistance and driving load. there were. Moreover, since mud adheres to the details of the seedling planting device, it requires a lot of labor and time for cleaning after the planting operation, and also interferes with various adjustment operations in the seedling planting device.

本発明は、このような点に着目してなされたものであって、後輪によって後方に向けて上下広く飛散された泥が水田作業装置の各部に付着堆積することを防止するとともに、水田作業装置の洗浄や各種の調整などのメンテナンス作業を容易に行えるようにすることを目的としている。   The present invention has been made paying attention to such points, and prevents mud scattered widely and vertically by the rear wheels from adhering to and depositing on each part of the paddy field work device, The purpose is to facilitate maintenance work such as cleaning of the apparatus and various adjustments.

第１の発明は、走行機体の後部に水田作業装置を昇降自在に連結した水田作業機において、
前記水田作業装置の前方に、走行機体の後輪によって後方に飛散された泥を受け止める泥除けカバーを、田作業装置下部から後輪軸心の上方相当個所に亘って配備するとともに、前記泥除けカバーにメンテナンス用の開放部を形成してあることを特徴とする。 1st invention is the paddy field machine which connected the paddy field work device to the rear part of a running machine body so that raising and lowering was possible,
In front of the paddy field work device, a mudguard cover that catches mud scattered rearward by the rear wheel of the traveling machine body is arranged from the lower part of the paddy field work device to the upper part of the rear wheel shaft center, and maintenance is performed on the mudguard cover. It is characterized in that an open part for forming is formed.

上記構成によると、土質や走行速度等の条件によって泥が大きく上方にまで広く飛散しても、上下に大きい泥除けカバーで泥が受け止められ、水田作業装置の各部への付着が抑制される。   According to the said structure, even if mud is large and spreads widely upwards according to conditions, such as soil quality and traveling speed, mud is received by the large mudguard cover up and down, and adhesion to each part of a paddy field work apparatus is suppressed.

泥除けカバーに形成した開放部から洗浄水を供給することで、泥除けカバーの裏側に回り込んで水田作業装置に付着した泥を洗い流すことができ、泥除けカバーを取外さなくても洗浄を行うことができる。
開放部の位置および大きさを適切に設定することで、泥除けカバーを取外すことなく水田作業装置の各種調整を行うことも可能となる。 By supplying cleaning water from the open part formed in the mudguard cover, it is possible to wash away mud adhering to the paddy field work equipment by going around to the back of the mudguard cover and washing it without removing the mudguard cover. it can.
By appropriately setting the position and size of the opening portion, various adjustments of the paddy field work apparatus can be performed without removing the mudguard cover.

従って、第１の発明によると、後輪によって後方に向けて上下広く飛散された泥が水田作業装置の各部に付着堆積することを防止することができ、摺動部などに泥が付着して磨耗が早められたり、作動抵抗が大きくなって駆動負荷が増大するようなことを回避することができるとともに、水田作業装置の細部にまで泥が付着することが少なくなり、業後の洗浄も容易となる。   Therefore, according to the first invention, it is possible to prevent mud scattered widely in the vertical direction toward the rear by the rear wheel from adhering to and accumulating on each part of the paddy field work device, and mud adheres to the sliding part and the like. It is possible to avoid accelerated wear and increased driving resistance due to increased operating resistance, and less mud adheres to the details of paddy field work equipment, facilitating cleaning after work. It becomes.

第２の発明は、上記第１の発明において、
前記開放部を開閉自在に構成してあるものである。 According to a second invention, in the first invention,
The open portion is configured to be openable and closable.

上記構成によると、通常は開放部を閉じておくことで、飛散した泥が泥除けカバーの背部にまで入り込むことを抑制し、開放部を開くことで、泥除けカバーの背部での洗浄や調整などのメンテナンス作業を開かれた開放部を通して容易に行うことができる。   According to the above configuration, normally the open part is closed to prevent the scattered mud from entering the back of the mudguard cover, and the open part is opened to perform cleaning and adjustment on the back of the mudguard cover. Maintenance work can be easily performed through an open opening.

第３の発明は、上記第１または第２の発明において、
走行機体から延出された肥料搬送用の供給ホースを、前記開放部に挿通支持可能に構成してあるものである。 According to a third invention, in the first or second invention,
The supply hose for fertilizer conveyance extended from the traveling machine body is configured to be inserted and supported in the open portion.

上記構成によると、泥除けカバーに形成した開放部に供給ホースを挿通して位置決めすることができるのみならず、開放部を通して泥除けカバーの背部に洗浄水を吹き付け供給することで、水田作業装置における前面部の洗浄を行う際に利用することもできる。   According to the above configuration, not only can the supply hose be inserted and positioned in the open part formed in the mudguard cover, but also the washing water is sprayed and supplied to the back of the mudguard cover through the open part. It can also be used when cleaning parts.

第４の発明は、上記第１〜３のいずれか一つの発明において、
前記泥除けカバーの適所を水田作業装置の固定部位に脱着可能に係止支持するとともに、泥除けカバーの他の適所を水田作業装置の固定部位にクランプ金具を介して脱着可能に支持してあるものである。 A fourth invention is the invention according to any one of the first to third inventions,
The appropriate place of the mudguard cover is detachably locked to the fixed part of the paddy field work device, and the other appropriate position of the mudguard cover is detachably supported to the fixed part of the paddy field work device via a clamp fitting. is there.

上記構成によると、工具を用いることなく泥除けカバーを簡単迅速に取外すことができ、水田作業装置の大掛かりなメンテナンス作業や洗浄を容易に行うことができる。   According to the said structure, a mudguard cover can be removed simply and rapidly without using a tool, and the large-scale maintenance operation | work and washing | cleaning of a paddy field working apparatus can be performed easily.

図１に、本発明に係る水田作業機の一例である田植機が示されている。この田植機は６条植え仕様に構成されたものであって、前輪１および後輪２を備えて四輪駆動式に構成された走行機体３の後部に、油圧シリンダ４で駆動される平行四連リンク構造の昇降リンク機構５が装備され、この昇降リンク機構５の後端下部に水田作業装置としての苗植付け装置６が前後向き支点ｐ周りにローリング自在に連結支持されるとともに、走行機体３の後部に施肥装置７が搭載された構造となっている。   The rice transplanter which is an example of the paddy field machine concerning this invention is shown by FIG. This rice transplanter is configured in a six-row planting specification, and includes a parallel four driven by a hydraulic cylinder 4 at a rear portion of a traveling machine body 3 that includes a front wheel 1 and a rear wheel 2 and is configured as a four-wheel drive type. A lifting link mechanism 5 having a continuous link structure is provided, and a seedling planting device 6 as a paddy field working device is connected and supported in a freely rolling manner around the fulcrum p in the front-rear direction at the lower rear end of the lifting link mechanism 5. It has the structure where the fertilizer 7 is mounted in the rear part.

図２〜図４に示すように、前記苗植付け装置６は、６条分のマット状苗を載置して一定ストロークで往復横移動される苗のせ台８、この苗のせ台８の下端から１株分づつ苗を切り出して田面Ｔに植え付けてゆく６組の回転式の植付け機構９、田面Ｔの植付け箇所を均平化するよう並列配備された３個の整地フロート１０、次行程の走行基準線を田面Ｔに形成する左右一対のマーカー１１、等が備えられている。   As shown in FIGS. 2 to 4, the seedling planting device 6 includes a seedling base 8 on which six mats of matted seedlings are placed and reciprocally moved by a fixed stroke, from the lower end of the seedling base 8. 6 sets of rotary planting mechanisms 9 that cut out seedlings for one stock and plant them on the rice field T, three leveling floats 10 arranged in parallel to level the planting locations of the rice field T, and travel in the next stroke A pair of left and right markers 11 that form a reference line on the surface T are provided.

並列配備された３つの整地フロート１０はそれぞれ後部支点ｂを中心に上下揺動自在に支持されており、中央の整地フロート１０は左右の整地フロート１０より前方に延出されて、田面Ｔに対する苗植付け装置６の高さを検知するセンサフロートＳＦとして利用されている。このセンサフロートＳＦの前部と、苗植付け装置６の適所に位置固定に配備された図示されていない回転式ポテンショメータとがリンク連係され、センサフロートＳＦの後部支点ｂ周りの揺動角度が電気的に検知され、この検出値が設定された基準範囲にあるように油圧シリンダ４が作動制御されることで、走行機体３の浮沈や前後傾斜にかかわらず苗植付け装置６を田面Ｔに対して所定高さに維持して、植付け深さを安定化する自動昇降制御（自動植付け深さ制御）が行われるようになっている。   The three leveling floats 10 arranged in parallel are supported so as to be able to swing up and down around the rear fulcrum b, and the center leveling float 10 extends forward from the left and right leveling floats 10 and is a seedling for the surface T. It is used as a sensor float SF that detects the height of the planting device 6. The front part of the sensor float SF is linked to a rotary potentiometer (not shown) arranged in a fixed position at an appropriate position of the seedling planting device 6, and the swing angle around the rear fulcrum b of the sensor float SF is electrically The hydraulic cylinder 4 is controlled so that the detected value is within the set reference range, so that the seedling planting device 6 can be placed on the surface T in a predetermined manner regardless of the ups and downs of the traveling machine body 3 and the forward and backward inclination. Automatic elevation control (automatic planting depth control) is performed to maintain the height and stabilize the planting depth.

苗植付け装置６における前側下部にはアルミ材を押し出し成型してなる左右に長い角筒状の植付けフレーム１２が装備され、この植付けフレーム１２が前記昇降リンク機構５の後端下部に前記前後向き支点ｐ周りにローリング自在に連結支持されている。植付けフレーム１２の左右中央付近に、走行機体３からの動力を受けるフィードケース１３が連結されるとともに、植付けフレーム１２の後面の左右３箇所に植付けケース１４が後向き片持ち状に連結され、各植付けケース１４の後端部に貫通横架された植付け駆動軸１５の左右両端に、植付け機構９が装着されている。   The seedling planting device 6 is provided with a square tube-shaped planting frame 12 which is formed by extruding aluminum material at the front lower portion, and this planting frame 12 is mounted on the lower end of the lifting link mechanism 5 at the front-rear supporting point. It is connected and supported so that it can roll around p. A feed case 13 that receives power from the traveling machine body 3 is connected to the left and right center of the planting frame 12, and a planting case 14 is connected to the left and right three locations on the rear surface of the planting frame 12 in a cantilevered manner. The planting mechanisms 9 are mounted on the left and right ends of the planting drive shaft 15 that is penetrating and horizontally mounted on the rear end portion of the case 14.

植付け機構９には、前記植付け駆動軸１５の端部に連結固定されて植付け駆動軸１５と一体回転する回転ケース１６と、この回転ケース１６における両端部の横外側に横軸心回りに自転可能に軸支された爪ケース１７とが備えられており、各爪ケース１７に植付け爪１８と苗押し出し具１９が装備されている。   The planting mechanism 9 is connected and fixed to the end of the planting drive shaft 15 and rotates together with the planting drive shaft 15. The planting mechanism 9 can rotate around the horizontal axis on the lateral outer sides of both ends of the rotation case 16. A claw case 17 pivotally supported on the claw case 17 is provided, and each claw case 17 is provided with a planting claw 18 and a seedling pusher 19.

回転ケース１６が植付け駆動軸１５によって前進回転方向（図１において反時計方向）に定速で１回転されるのに連動して、爪ケース１７が回転ケース１６に内装された不等速ギヤ伝動機構（図示せず）によって逆方向に不等速で１回転自転され、これによって、植付け爪１８が、苗のせ台８の下端の苗取出し口と田面Ｔとに亘る縦長の先端回動軌跡Ｓを描いて循環移動するようになっている。植付け爪１８が苗のせ台８の下端から切り出し保持した苗を田面Ｔに持ち込む時点で苗押し出し具１９が爪先側に突出作動して、保持した苗を植付け爪１８から分離して地中に押込むように構成されている。   In conjunction with the rotation of the rotating case 16 at a constant speed in the forward rotation direction (counterclockwise in FIG. 1) by the planting drive shaft 15, an inconstant speed gear transmission in which the claw case 17 is housed in the rotating case 16. By a mechanism (not shown), it is rotated once in a reverse direction at an inconstant speed, so that the planting claw 18 has a vertically long tip rotation trajectory S that extends between the seedling outlet at the lower end of the seedling platform 8 and the rice field T. It is designed to circulate and draw. When the planting claw 18 brings the seedling cut out and held from the lower end of the seedling table 8 into the surface T, the seedling pushing tool 19 protrudes toward the toe side, separates the held seedling from the planting claw 18 and pushes it into the ground. It is configured to

図４に示すように、植付けケース１４の上方箇所には、苗のせ台８の下端部を左右スライド自在に受け止め支持する摺動レール２１が横架されている。この摺動レール２１は、ガイドロッド２２を介して苗のせ台８の傾斜方向に変位可能に支持されており、摺動レール２１を位置調節して苗のせ台８を、植付け爪１８の先端回動軌跡Ｓに対して苗のせ台傾斜方向に上下移動させることで、植付け爪１８による苗取出し量を変更調節することが可能となっている。摺動レール２１の位置調節には、支点ａ周りに揺動操作される苗取出し量調節用の調節レバー２３が用いられ、揺動調節した調節レバー２３を植付けフレーム１２に備えたレバーガイド２４のノッチ２５に係止することで、摺動レール２１を任意の調節位置に固定保持するよう構成されている。   As shown in FIG. 4, a slide rail 21 that horizontally receives and supports the lower end portion of the seedling support base 8 is slid horizontally at an upper portion of the planting case 14. The slide rail 21 is supported via a guide rod 22 so as to be displaceable in the inclination direction of the seedling table 8, and the position of the slide rail 21 is adjusted so that the seedling table 8 is rotated around the tip of the planting claw 18. It is possible to change and adjust the amount of seedling removal by the planting claws 18 by moving the seedling table up and down with respect to the movement trajectory S. For adjusting the position of the slide rail 21, an adjustment lever 23 for adjusting the amount of seedling removal that is swing-operated around the fulcrum a is used, and the lever guide 24 provided on the planting frame 12 includes the adjustment lever 23 that is swing-adjusted. By engaging with the notch 25, the slide rail 21 is fixedly held at an arbitrary adjustment position.

植付けケース１４の前部下方にはフロート支点軸２６が横水平に配備され、このフロート支点軸２６から後方に向けて突設された３組のフロート支持アーム２７の後端に、整地フロート１０が支点ｂ周りにそれぞれ上下揺動可能に連結支持されている。フロート支点軸２６と一体に支点ｃ周りに揺動自在なフロート支持アーム２７は、フロート支点軸２６から前方上方に延出された植付け深さ変更用の調節レバー２８によって揺動操作されるようになっており、フロート支持アーム２７を上方に移動させることで植付け爪１８の先端回動軌跡Ｓが田面Ｔに対して下がって植付け深さが深くなり、フロート支持アーム２７を下方に移動させることで先端回動軌跡Ｓが田面Ｔに対して上がって植付け深さが浅くなる。調節レバー２８は前記レバーガイド２４のノッチ２９に係止して任意の調節位置に固定保持することができる。   A float fulcrum shaft 26 is disposed horizontally and horizontally below the front portion of the planting case 14, and the leveling float 10 is provided at the rear end of the three sets of float support arms 27 projecting rearward from the float fulcrum shaft 26. It is connected and supported around the fulcrum b so that it can swing up and down. The float support arm 27 that can swing about the fulcrum c integrally with the float fulcrum shaft 26 is swing-operated by an adjustment lever 28 for changing the planting depth extending forward and upward from the float fulcrum shaft 26. By moving the float support arm 27 upward, the tip rotation trajectory S of the planting claw 18 is lowered with respect to the surface T, and the planting depth is deepened, and the float support arm 27 is moved downward. The tip rotation trajectory S rises with respect to the surface T and the planting depth becomes shallow. The adjustment lever 28 can be fixedly held at an arbitrary adjustment position by being engaged with the notch 29 of the lever guide 24.

前記フィードケース１３には走行機体３から取り出された作業用動力が伸縮伝動軸３０を介して伝達され、このフィードケース１３に伝達された動力で苗のせ台８が横送り駆動されるとともに、そのストロークエンドごとに苗のせ台８に備えた苗送りベルト３７が一定ピッチづつ送り駆動される。フィードケース１３に伝達された動力の一部が横向きの伝動軸３１から取出されて、並列された植付けケース１４の基端部に伝達されるようになっている。   The work power taken out from the traveling machine body 3 is transmitted to the feed case 13 via the telescopic transmission shaft 30, and the seedling table 8 is laterally driven by the power transmitted to the feed case 13. At each stroke end, the seedling feed belt 37 provided on the seedling table 8 is driven at a constant pitch. A part of the power transmitted to the feed case 13 is taken out from the lateral transmission shaft 31 and transmitted to the proximal ends of the planting cases 14 arranged in parallel.

図２に示すように、植付けフレーム１４の左右からは支柱３２が立設され、その支柱３２に亘って架設固定された横フレーム３３の左右複数箇所にガイドローラ３４が備えられ、これらガイドローラ３４が苗のせ台８の上部背面に横架連結された案内フレーム３５に係合され、前倒れ姿勢に維持された苗のせ台８の上部が左右移動可能、上下移動可能に受け止め支持されている。   As shown in FIG. 2, support columns 32 are erected from the left and right sides of the planting frame 14, and guide rollers 34 are provided at a plurality of left and right positions of a horizontal frame 33 that is installed and fixed over the support columns 32. Is engaged with a guide frame 35 that is horizontally connected to the upper rear surface of the seedling platform 8, and the upper portion of the seedling platform 8 that is maintained in the forward tilted posture is received and supported so as to be movable left and right and vertically movable.

前記昇降リンク機構５の後端上方には、ローリング駆動装置４０が設けられている。このローリング駆動装置４０から左右横外方に導出された操作ワイヤ４１と、横フレーム３３の左右箇所とに亘って緩衝バネ４２が架設され、電動モータ４３によって左右の操作ワイヤ４１を背反的に出し入れ操作することで、苗植付け装置６の全体が前後向き支点ｐ周りに駆動揺動されるようになっている。ローリング駆動装置４０は、苗植付け装置６の左右傾斜を検知する図示されていない傾斜センサに連係されており、走行機体３が耕盤の起伏や凹凸によって左右傾斜して苗植付け装置６が追従傾斜すると、これが傾斜センサで検知されて電動モータ４３が作動制御され、苗植付け装置６が左右水平姿勢まで復帰制御されるようになっている。ローリング駆動装置４０と苗植付け装置６との間には緩衝バネ４２が架設されており、ローリング駆動装置４０が作動休止状態でも苗植付け装置６は緩衝バネ４２を変形させながら自由ローリング作動することが可能であり、走行機体３が多少の左右傾斜しても苗植付け装置６は田面Ｔに接地追従する。   A rolling drive device 40 is provided above the rear end of the lift link mechanism 5. A buffer spring 42 is installed between the operation wire 41 led out from the rolling drive device 40 to the left and right lateral sides and the left and right portions of the horizontal frame 33, and the left and right operation wires 41 are put in and out by the electric motor 43. By operating, the whole seedling planting device 6 is driven to swing around the fulcrum p in the front-rear direction. The rolling drive device 40 is linked to an inclination sensor (not shown) that detects the right / left inclination of the seedling planting device 6. Then, this is detected by the tilt sensor, the operation of the electric motor 43 is controlled, and the seedling planting device 6 is controlled to return to the horizontal horizontal posture. A buffer spring 42 is provided between the rolling drive device 40 and the seedling planting device 6, and the seedling planting device 6 can be freely rolled while deforming the buffer spring 42 even when the rolling drive device 40 is in a non-operational state. It is possible, and even if the traveling machine body 3 is tilted slightly to the left and right, the seedling planting device 6 follows the ground surface T.

昇降リンク機構５の後端上部と苗のせ台背部の案内フレーム３５の左右箇所に亘って、バランスバネ３６が張設されている。苗のせ台８が横移動すると、その移動方向と反対側のバランスバネ３６が伸ばされて、バネ張力によるローリング力が苗植付け装置６に付加され、苗のせ台８の横移動による重量バランスの変化で苗植付け装置６が傾斜することが自動的に防止されるようになっている。   A balance spring 36 is stretched across the upper part of the rear end of the lifting link mechanism 5 and the left and right portions of the guide frame 35 on the back of the seedling platform. When the seedling table 8 moves laterally, the balance spring 36 opposite to the moving direction is extended, and a rolling force due to the spring tension is applied to the seedling planting device 6, and the weight balance changes due to the lateral movement of the seedling table 8. Thus, the seedling planting device 6 is automatically prevented from tilting.

前記施肥装置７の主部が、走行機体３の後部に配備された運転座席２０と前記苗植付け装置６との間において走行機体３に搭載されており、粉粒状の肥料を貯留する肥料ホッパ４６、この肥料ホッパ４６内の肥料を繰り出す回転式の送出し機構４７、繰り出された肥料を供給ホース４８を介して苗植付け装置６の各整地フロート１０に備えた作溝器４９に風力搬送する電動ブロワ５０、電動ブロワ５０からの搬送風を２条単位で並列配備された３個の繰出し機構４７に分配供給する送風ダクト５１、などを備えている。   The main part of the fertilizer application device 7 is mounted on the traveling machine body 3 between the driver seat 20 disposed at the rear of the traveling machine body 3 and the seedling planting device 6, and a fertilizer hopper 46 for storing powdered fertilizer. The rotary feed mechanism 47 that feeds the fertilizer in the fertilizer hopper 46, and the electric feed that winds the fed fertilizer through the supply hose 48 to the grooving device 49 provided in each leveling float 10 of the seedling planting device 6. A blower 50, a blower duct 51 that distributes and feeds the conveying air from the electric blower 50 to three feeding mechanisms 47 arranged in parallel in units of two strips, and the like are provided.

マーカー１１は、起伏揺動可能に植付けフレーム１２の左右端部に装着されており、横外方に張出した作用姿勢と起立された格納姿勢とに切換え揺動可能に支持されるとともに、電動モータ４４の正逆作動によって前記両姿勢の切換えがなされるように構成されている。   The marker 11 is mounted on the left and right ends of the planting frame 12 so as to be able to swing up and down, and is supported so as to be able to switch between a working posture projecting laterally outward and a stowed storage posture, and an electric motor. The two postures are switched by the forward / reverse operation of 44.

上記のように構成された苗植付け装置６の前部には、後輪２から後方に跳ね上げられた泥を受け止める左右一対の泥除けカバー５５が前倒れ傾斜姿勢で装着されている。この泥除けカバー５５は樹脂材をブロー成形して板状に形成されており、図５に示すように、各泥除けカバー５５の上端部の左右箇所が、前記横フレーム３３から立設したステー５２の上端にボルト締め固定されるとともに、図６に示すように、泥除けカバー５５の下部の左右箇所が、植付けケース１４を植付けフレーム１２へ連結する貫通ボルト５３を利用して共締め固定されている。前記貫通ボルト５３は植付けフレーム１２に沿って配備された断面Ｌ形の受け板５４に締め込まれるようになっている。   A pair of left and right mudguard covers 55 for receiving mud splashed rearward from the rear wheel 2 are mounted in a forward tilted posture at the front portion of the seedling planting device 6 configured as described above. The mudguard cover 55 is formed in a plate shape by blow molding a resin material. As shown in FIG. 5, the left and right portions of the upper end of each mudguard cover 55 are provided on the stay 52 erected from the horizontal frame 33. As shown in FIG. 6, the left and right portions of the lower portion of the mudguard cover 55 are fixed together by using bolts 53 that connect the planting case 14 to the planting frame 12. The through bolt 53 is fastened to a receiving plate 54 having an L-shaped cross section provided along the planting frame 12.

各泥除けカバー５５は、後輪２に後方から対向して左右の整地フロート１０の前端近傍から後輪軸心ｘより上方の高位置に亘って上下に長く、かつ、左右の整地フロート１０に前方から重複する幅広に形成されて、全体が前倒れ傾斜姿勢で取り付けられている。この泥除けカバー５５の上端は、前記バランスバネ３６および緩衝バネ４２の大部分を前方から覆う高さ位置に設定されており、後輪２で飛散された泥がバランスバネ３６および緩衝バネ４２に付着固化してバネ機能が低下することが防止されている。   Each mudguard cover 55 is opposed to the rear wheel 2 from behind and is vertically long from the vicinity of the front end of the left and right leveling floats 10 to a high position above the rear wheel shaft center x, and from the front to the left and right leveling floats 10. It is formed in a wide overlapping area, and the whole is attached in a forward tilted posture. The upper end of the mudguard cover 55 is set at a height that covers most of the balance spring 36 and the buffer spring 42 from the front, and mud scattered by the rear wheel 2 adheres to the balance spring 36 and the buffer spring 42. It is prevented that the spring function is reduced due to solidification.

泥除けカバー５５の上下中間部位が全幅に亘って前向きに膨出するよう湾曲形成されており、この湾曲膨出部５５ａの後方にマーカ１１を起伏駆動する電動モータ４４が配置されている。湾曲膨出部５５ａの下半部が、泥除けカバー５５全体の前倒れ傾斜角度よりきつい角度で前方下方に向けて傾斜する泥落し案内面Ｇとなっており、後輪２から跳ね飛ばされる泥の多くを急傾斜の泥落し案内面Ｇで受け止めて速やかに自重落下させ、泥除けカバー５５に泥が多量に付着堆積することが防止されるようになっている。   The upper and lower intermediate portions of the mudguard cover 55 are curved so as to bulge forward over the entire width, and an electric motor 44 that drives the marker 11 up and down is disposed behind the curved bulging portion 55a. The lower half of the curved bulging portion 55a is a mud dropping guide surface G that is inclined forward and downward at a tighter angle than the forward tilt angle of the mudguard cover 55 as a whole. A large amount of mud drops are received by the guide surface G and quickly dropped by its own weight, so that a large amount of mud adheres to and accumulates on the mudguard cover 55 is prevented.

整地フロート１０が最も下方に位置調節された最浅植え状態においても、泥除けカバー５５の下端がその後方に位置する整地フロート１０の上端と略同高さ、好ましくは整地フロート１０の上端より低い位置に位置するよう構成され、泥除けカバー５５の下端と整地フロート１０との間から泥が後方に飛散することが防止されている。   Even in the shallowest planting state in which the leveling float 10 is adjusted to the lowest position, the lower end of the mudguard cover 55 is substantially the same height as the upper end of the leveling float 10 located behind it, preferably lower than the upper end of the leveling float 10. The mud is prevented from splashing backward from between the lower end of the mudguard cover 55 and the leveling float 10.

泥除けカバー５５における前記泥落し案内面Ｇより上方の適所には、メンテナンス用の開放部Ａとして小さい透孔５６が多数並列形成されており、この透孔５６から洗浄水を泥除けカバー５５の背部に吹き込むことで、泥除けカバー５５で隠された苗植付け装置６の前面部位を洗浄することができるようになっている。   A large number of small through holes 56 are formed in parallel in the mudguard cover 55 above the mud dropping guide surface G as maintenance opening parts A, and washing water is passed through the through holes 56 on the back of the mudguard cover 55. By blowing, the front part of the seedling planting device 6 concealed by the mudguard cover 55 can be washed.

各泥除けカバー５５の適所には開口５７が形成されている。この開口５７に前記供給ホース４８が挿通され、ホース４８がずれ動くことなく支持されるようになっている。この開口５７は、洗浄水を泥除けカバー５５の背部に吹き込むメンテナンス用の開放部Ａとして利用することもできる。   An opening 57 is formed at an appropriate position of each mudguard cover 55. The supply hose 48 is inserted into the opening 57 so that the hose 48 is supported without moving. The opening 57 can also be used as an opening A for maintenance that blows cleaning water into the back of the mudguard cover 55.

〔他の実施例〕
（１）図７に示すように、前記泥除けカバー５５における下半部の適所に、メンテナンス用の開放部Ａとして矩形の大きい開口５８が形成されるとともに、この開口５８が開閉可能な蓋カバー５９で閉塞されている。この蓋カバー５９の開閉構造としては、ネジ止め脱着式、スライド開閉式、あるいは、揺動開閉式、等を適宜選択することができる。開口５８は、苗植え付け装置６のグリース注入箇所やセンサ設置箇所に臨むよう形成され、開放した開口５８からグリース注入、センサ調整、あるいは、洗浄などのメンテナンス作業を行う。 [Other Examples]
(1) As shown in FIG. 7, a large rectangular opening 58 is formed as an opening A for maintenance at an appropriate position in the lower half of the mudguard cover 55, and a lid cover 59 that can be opened and closed. Is blocked. As the opening / closing structure of the lid cover 59, a screwing attachment / detachment type, a slide opening / closing type, a swing opening / closing type, or the like can be appropriately selected. The opening 58 is formed so as to face the grease injection location and the sensor installation location of the seedling planting device 6, and maintenance work such as grease injection, sensor adjustment, or washing is performed from the opened opening 58.

（２）図８に示すように、泥除けカバー５５の下端部に形成したダルマ孔６０の小径部を、植付けフレーム１２の前面に突設した溝付きピン６１の溝部に係止するとともに、泥除けカバー５５の上端部に装着したバックル式のクランプ金具６２をステー５２の上端に設けた掛け金具６３に係止連結する構造を採用することで、前記泥除けカバー５５を工具無しに簡易に脱着することができる。なお、上記実施例とは逆に、泥除けカバー５５の上部をダルマ孔６０と溝付きピン６１とを介して脱着可能に係止するとともに、泥除けカバー５５の下部を植付け部フレーム１２の前部にクランプ金具６２を介して脱着自在に連結することも可能である。   (2) As shown in FIG. 8, the small diameter portion of the dharma hole 60 formed in the lower end portion of the mudguard cover 55 is locked to the groove portion of the grooved pin 61 projecting from the front surface of the planting frame 12, and the mudguard cover By adopting a structure in which a buckle type clamp fitting 62 attached to the upper end of 55 is locked and connected to a hanging fitting 63 provided on the upper end of the stay 52, the mudguard cover 55 can be easily detached without a tool. it can. Contrary to the above embodiment, the upper portion of the mudguard cover 55 is detachably locked through the dharma hole 60 and the grooved pin 61, and the lower part of the mudguard cover 55 is attached to the front portion of the planting part frame 12. It is also possible to detachably connect via the clamp fitting 62.

（９）図９に示すように、左右の泥除けカバー５５の内側端辺と昇降リンク機構５とに亘って伸縮変形自在な補助泥除けカバー６５を架設することで、後輪２によって飛散された泥が苗植付け装置６の前面中央付近に付着することを一層確実に防止することができる。なお、この場合、調節レバー２３，２８は補助泥除けカバー６５に貫通して配備される。   (9) Mud scattered by the rear wheel 2 by installing an auxiliary mudguard cover 65 that is extendable and deformable across the inner edges of the left and right mudguard covers 55 and the lifting link mechanism 5, as shown in FIG. Can be more reliably prevented from adhering to the vicinity of the center of the front surface of the seedling planting device 6. In this case, the adjustment levers 23 and 28 are provided so as to penetrate the auxiliary mudguard cover 65.

田植機の全体側面図Whole side view of rice transplanter 苗植付け装置の前方正面図Front view of seedling planting device 苗植付け装置の側面図Side view of seedling planting device 整地フロートおよび苗のせ台下端部の支持構造を示す側面図Side view showing the support structure of the bottom of the leveling float and seedling platform 泥除けカバーの上部取り付け構造を示す縦断側面図Vertical side view showing the upper mounting structure of the mudguard cover 泥除けカバーの下部取り付け構造を示す縦断側面図Longitudinal side view showing the lower mounting structure of the mudguard cover 別実施例の泥除けカバーを装着した苗植付け装置の前方正面図Front view of a seedling planting device equipped with a mudguard cover of another embodiment 泥除けカバー取り付け構造の別実施例を示す側面図Side view showing another embodiment of mudguard cover mounting structure さらに別の実施例の泥除けカバーを装着した苗植付け装置の前方正面図Furthermore, the front front view of the seedling planting device equipped with the mudguard cover of another embodiment

符号の説明Explanation of symbols

２ 後輪
３ 走行機体
６ 水田作業装置（苗植付け装置）
４８ 供給ホース
５５ 泥除けカバー
６２ クランプ金具
Ａ 開放部
ｘ 後輪軸心 2 Rear wheel 3 Traveling machine 6 Paddy field work device (seed planting device)
48 Supply hose 55 Mudguard cover 62 Clamp fitting A Open part x Rear wheel shaft center

Claims (4)

走行機体の後部に水田作業装置を昇降自在に連結した水田作業機において、
前記水田作業装置の前方に、走行機体の後輪によって後方に飛散された泥を受け止める泥除けカバーを、田作業装置下部から後輪軸心の上方相当個所に亘って配備するとともに、前記泥除けカバーにメンテナンス用の開放部を形成してあることを特徴とする水田作業機。 In the paddy field work machine where the paddy field work device is connected to the rear part of the traveling machine body so as to be movable up and down,
In front of the paddy field work device, a mudguard cover that catches mud scattered rearward by the rear wheel of the traveling machine body is arranged from the lower part of the paddy field work device to the upper part of the rear wheel shaft center, and maintenance is performed on the mudguard cover. Paddy field work machine characterized by forming an open part for use. 前記開放部を開閉自在に構成してある請求項１記載の水田作業機。   The paddy field machine according to claim 1, wherein the opening portion is configured to be freely opened and closed. 走行機体から延出された肥料搬送用の供給ホースを、記開放部に挿通支持可能に構成してある請求項１または２記載の水田作業機。   The paddy field work machine according to claim 1 or 2, wherein a fertilizer transporting supply hose extended from the traveling machine body is configured to be inserted and supported in the opening portion. 前記泥除けカバーの適所を水田作業装置の固定部位に脱着可能に係止支持するとともに、泥除けカバーの他の適所を水田作業装置の固定部位にバックル式のクランプ金具を介して脱着可能に支持してある請求項１〜３のいずれか一項に記載の水田作業機。   The appropriate place of the mudguard cover is detachably locked to the fixed part of the paddy field work device, and the other suitable place of the mudguard cover is detachably supported to the fixed part of the paddy field work device through a buckle type clamp fitting. The paddy field machine as described in any one of Claims 1-3.
JP2007036482A 2007-02-16 2007-02-16 Paddy field machine Expired - Fee Related JP5204412B2 (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013070627A (en) * 2011-09-26 2013-04-22 Kubota Corp Paddy field working machine
JP2014100125A (en) * 2012-11-22 2014-06-05 Kubota Corp Mud guard structure of paddy field working vehicle
JP2014138566A (en) * 2013-01-21 2014-07-31 Kubota Corp Paddy field working machine
JP2015223104A (en) * 2014-05-27 2015-12-14 株式会社クボタ Sulky rice transplanter
CN105815017A (en) * 2015-01-28 2016-08-03 株式会社久保田 Riding type rice planting machine
CN115413456A (en) * 2022-10-14 2022-12-02 安徽理工大学 Small-size transplanter for terrace planting

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JP2001095321A (en) * 1999-09-29 2001-04-10 Kubota Corp Rice transplanter provided with fertilizing apparatus
JP2002037135A (en) * 2001-06-05 2002-02-06 Iseki & Co Ltd Sulky rice-transplanter
JP2003153616A (en) * 2001-09-07 2003-05-27 Yanmar Agricult Equip Co Ltd Rice transplanter
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JPH11152064A (en) * 1997-11-21 1999-06-08 Kubota Corp Riding type working machine
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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013070627A (en) * 2011-09-26 2013-04-22 Kubota Corp Paddy field working machine
JP2014100125A (en) * 2012-11-22 2014-06-05 Kubota Corp Mud guard structure of paddy field working vehicle
JP2014138566A (en) * 2013-01-21 2014-07-31 Kubota Corp Paddy field working machine
CN110089246A (en) * 2014-05-27 2019-08-06 株式会社久保田 Saddle type rice transplanter
JP2015223104A (en) * 2014-05-27 2015-12-14 株式会社クボタ Sulky rice transplanter
CN105309095A (en) * 2014-05-27 2016-02-10 株式会社久保田 Sulky rice transplanter
CN110089246B (en) * 2014-05-27 2022-03-29 株式会社久保田 Riding type rice transplanter
CN105309095B (en) * 2014-05-27 2019-06-07 株式会社久保田 Saddle type rice transplanter
JP2016136896A (en) * 2015-01-28 2016-08-04 株式会社クボタ Sulky type rice transplanter
CN105815017B (en) * 2015-01-28 2021-08-06 株式会社久保田 Riding type rice transplanter
CN105815017A (en) * 2015-01-28 2016-08-03 株式会社久保田 Riding type rice planting machine
CN115413456A (en) * 2022-10-14 2022-12-02 安徽理工大学 Small-size transplanter for terrace planting
CN115413456B (en) * 2022-10-14 2023-06-02 安徽理工大学 Small-size transplanter that terraced fields were planted usefulness

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