JP5779995B2

JP5779995B2 - Seedling transplanter

Info

Publication number: JP5779995B2
Application number: JP2011122318A
Authority: JP
Inventors: 山崎　仁史; 仁史山崎; 名本　学; 学名本; 和彦石井; 雄右奥平
Original assignee: Iseki and Co Ltd
Current assignee: Iseki and Co Ltd
Priority date: 2011-05-31
Filing date: 2011-05-31
Publication date: 2015-09-16
Anticipated expiration: 2031-05-31
Also published as: JP2012249535A

Description

本件発明は、苗移植機が圃場に植え付ける苗の前後間隔、即ち株間の変更操作機構に関するものであり、作業条件に合致する株間を作業者が容易に調節できるものである。 The present invention relates to an interval between seedlings to be planted in a field by a seedling transplanter, that is, a change operation mechanism between strains, and an operator can easily adjust the spacing between strains that meet the working conditions.

苗移植機の伝動装置を構成するミッションケースや、このミッションケースから後側の植付装置に向けて取り出されるＰＴＯ軸等の伝動機構部に、変速ギヤ及び切替ギヤを設けて、機体の走行伝動速に比べて植付装置に対する伝動速を高速または低速に切り替え、苗の植付条に沿った前後方向の株間の間隔を「広」、または「狭」に切替選択する技術が存在する。 A transmission gear and a switching gear are provided in a transmission case such as a PTO shaft taken out from the transmission case toward the rear planting device from the transmission case, and a transmission transmission of the aircraft. There is a technique for switching the transmission speed to the planting device to a high speed or a low speed as compared with the speed and switching the interval between the plants in the front-rear direction along the seedling planting line to “wide” or “narrow”.

特開２０１０−２４６４０９号公報JP 2010-246409 A

現行の苗移植機の株間調節機構は、回動操作ピンの上部にツマミを設け、この回動操作ピンを直接回転させて株間を変更する構成となっているため、この回動操作ピンの操作には大きい操作力を必要とするため、作業者に大きな労力を費やさせる問題がある。 The current inter-strain adjustment mechanism of the seedling transplanter has a structure in which a knob is provided on the upper part of the rotation operation pin and the rotation operation pin is directly rotated to change between the stocks. Has a problem in that it requires a large amount of manpower for the operator.

また、この回動操作ピンがボンネット内に配置されているため、回動操作ピンの操作位置の際には周辺に配置された多くの部材を避けて操作せねばならないため、操作性が悪くなる問題がある。 In addition, since the rotation operation pin is disposed in the bonnet, the operability is deteriorated because it is necessary to operate while avoiding many members arranged in the vicinity when the rotation operation pin is operated. There's a problem.

本発明は、上記の問題を解消しようとするものである。 The present invention seeks to solve the above problems.

請求項１記載の発明は、車体（４０）の前部にミッションケース（２）を設け、該車体（４０）の後部に苗を積載する苗載せ部材（２８）を設け、該苗載せ部材（２８）に積載した苗を圃場に植え付ける植付装置（３０）を設け、該植付装置（３０）の苗を植え付ける間隔を調節する株間調節機構（Ｓ）を設けた苗移植機において、該株間調節機構（Ｓ）は、前記ミッションケース（２）に門型の支持部材（３）を設け、該門型の支持部材（３）の左右方向略中央部で且つ上部に調節回動軸（８）を介して株間操作部材（７）を設け、該株間操作部材（７）の前側端部にフック部（１３）を形成し、該フック部（１３）にアーム軸（１５）と共に回動する回動部材（１４）を係合させて設け、前記株間操作部材（７）を操作して回動部材（１４）とアーム軸（１５）を回動させると前記植付装置（３０）への伝動速を切り替える切替連動部材（１６）が回動する構成とし、該回動部材（１４）を調節回動軸（８）よりも機体前側に設け、前記調節回動軸（８）よりも機体後側に前記株間操作部材（７）の操作部を形成すると共に、前記支持部材（３）の調節回動軸（８）よりも後部に延設部（４）を形成したことを特徴とする苗移植機とする。 According to the first aspect of the present invention, the transmission case (2) is provided at the front portion of the vehicle body (40), the seedling placement member (28) for loading seedlings is provided at the rear portion of the vehicle body (40), and the seedling placement member ( planting planting seedlings were loaded on 28) in the field device (30) is provided, in strains adjustment mechanism (S) the set digit seedling transplanter for adjusting the spacing instill seedlings with the plant (30), said strains adjustment mechanism (S), the transmission case (2) gate-shaped support member (3) provided, and upper to regulatory times shaft in the lateral direction substantially central portion of the supporting member of the gantry (3) ( 8) An inter-strain operation member (7) is provided via the hook, and a hook part (13) is formed at the front end of the inter-strain operation member (7). The hook part (13) rotates together with the arm shaft (15). The rotating member (14) to be engaged is provided, and the inter-strain operating member (7) is operated to rotate the rotating member (1 4) When the arm shaft (15) is rotated, the switching interlocking member (16) for switching the transmission speed to the planting device (30) is rotated, and the rotating member (14) is adjusted and rotated. axis (8) set only to the fuselage forward of, the pre-forming the operation portion of the fuselage rear side of Sulfur butterfly clause times shaft (8) Hill space operating member (7), said support member (3) The seedling transplanting machine is characterized in that the extending portion (4) is formed at the rear portion of the adjusting rotation shaft (8) .

苗を植え付ける際の株間を設定及び変更する株間操作部材（７）や補助株間操作部材（９）は操作頻度の少ないものであるため、作業者の運転操作の邪魔になりにくいステップ部（５）の前端部に配置している。 Since the inter-strain operation member (7) and the auxiliary inter-strain operation member (9) for setting and changing the inter-strain when planting seedlings are infrequently operated, the step portion (5) which is unlikely to obstruct the operator's driving operation. It is arranged at the front end.

そして、該株間操作部材（７）を調節回動軸（８）を回動支点として回動させると、株間操作部材（７）の前端部のフック部（１３）に係合する回動部材（１４）とアーム軸（１５）が回動し、植付装置（３０）への伝動速を切り替える切替連動部材（１６）を操作する構成としている。この変更操作は、植付苗の前後間隔を複数段階に亘って切替可能に構成している。
さらに、前記株間調節部材（７）は、支持部材（３）の上側に調節回動軸（８）を介して支持されているので、該調節回動軸（８）を回動支点として株間調節部材（７）を左右方向に回動操作すると、植付部（６）への伝動機構が切り替えられる。この支持部材（３）はミッションケース（２）の上側に左右方向に門形状で配置されるものとすることにより、作業者の足元の操作の邪魔にならない配置とすることができる。
また、支持部材（３）の調節回動軸（８）よりも後部に延設部（４）を形成したことにより、支持部材（３）の剛性が向上するので、株間調節部材（７）の操作荷重が軽減される。 When the adjusting pivot axis strain between the operating member (7) and (8) Ru is rotated as the rotation fulcrum, pivot to engage the hook portion of the front end of the strains operating member (7) (13) member (14) and an arm axis | shaft (15) rotate and it is set as the structure which operates the switching interlocking member (16) which switches the transmission speed to a planting apparatus (30) . This changing operation is configured such that the front-rear intervals of the planted seedlings can be switched over a plurality of stages.
Furthermore, the strains adjusting member (7), since the upper side of the support member (3) is supported via adjusting pivot axis (8), strains The regulatory pivot axis (8) as a pivot point When the adjustment member (7) is rotated in the left-right direction, the transmission mechanism to the planting part (6) is switched. The support member (3) is arranged in a gate shape in the left-right direction on the upper side of the mission case (2), so that it can be arranged so as not to interfere with the operation of the operator's feet.
Moreover, since the rigidity of the support member (3) is improved by forming the extending portion (4) at the rear of the adjustment rotation shaft (8) of the support member (3), the strain adjustment member (7) The operation load is reduced.

請求項２記載の発明は、前記車体（４０）の副変速機構を路上走行速または植付作業速に切り替える作業操作部材（１０）を設け、前記延設部（４）の上部に作業者が機体上で足を乗せるステップ部（５）を設け、該作業操作部材（１０）に繋がる作業変更部材（１２）を前記延設部（４）の下部を通過させて配置したことを特徴とする請求項１記載の苗移植機とする。 According to a second aspect of the present invention, a work operation member (10) for switching the auxiliary transmission mechanism of the vehicle body (40) to a road traveling speed or a planting work speed is provided , and an operator is provided above the extending portion (4). step portion for placing the foot on the body (5) provided, characterized in that the work change member (12) leading to the working operation member (10) is arranged by passing through a lower portion of said extending portion (4) A seedling transplanter according to claim 1.

上記構成により、作業操作部材（１０）を操作することによって、前記ミッションケース（２）内の走行伝動系の機構を路上走行速または植付作業速に変速操作することができるので、路上等を高速走行する際は高速域に変速し、植付部（６）を土壌面に滑走させ植付作業を行う際は低速域に変速するように切替操作することができる。 With the above configuration, by operating the work operation member (10), the mechanism of the traveling transmission system in the mission case (2) can be shifted to the traveling speed on the road or the planting work speed. When traveling at high speed, the gear can be shifted to a high speed region, and when performing the planting work by sliding the planting part (6) on the soil surface, it can be switched to shift to the low speed region.

請求項３記載の発明は、前記調節回動軸（８）よりも後側位置に向けて前記株間操作部材（７）を屈曲させると共に、該株間操作部材（７）の操作部を後上り傾斜姿勢としたことを特徴とする請求項１または２記載の苗移植機とする。 The invention according to claim 3 is characterized in that the inter-strain operation member (7) is bent toward the rear side position with respect to the adjustment rotation shaft (8), and the operation part of the inter-strain operation member (7) is tilted rearwardly. The seedling transplanter according to claim 1, wherein the seedling transplanter is in a posture.

請求項４に記載の発明は、前記株間操作部材（７）で切り替える株間を変更する補助株間操作部材（９）を設け、該補助株間操作部材（９）の操作方向を前記株間操作部材（７）の操作方向と同じ方向となる構成としたことを特徴とする請求項１から３のいずれか１項に記載の苗移植機とする。 The invention according to claim 4 is provided with an auxiliary inter-strain operation member (9) that changes between the stocks to be switched by the inter-strain operation member (7), and the operation direction of the inter-strain operation member (9) is set to the inter-strain operation member (7 The seedling transplanting machine according to any one of claims 1 to 3, characterized in that the operation direction is the same as the operation direction .

上記構成により、植付苗の前後間隔がいっそう長く、植付作業一工程当たりの苗の消費数が減少する植付作業、所謂「疎植」作業を行う際には、株間操作部材（７）の横側近傍位置に配置する補助株間操作部材（９）を操作することにより、株間が疎植作業に対応した間隔で切換可能となる。With the above configuration, the inter-plant operation member (7) is used when performing a so-called “sparse planting” operation in which a planting seedling has a longer interval before and after and the number of seedlings consumed per planting process is reduced. By operating the auxiliary inter-strain operation member (9) disposed in the position in the vicinity of the side, the strain can be switched at intervals corresponding to the sparse planting work.

また、株間調節部材（７）と補助株間調節部材（９）を左右方向に配置することにより、株間の変更調節操作の際に互いに干渉し合わない位置に配置されるため、切替操作が行い易くなる。In addition, since the inter-strain adjustment member (7) and the auxiliary inter-strain adjustment member (9) are arranged in the left-right direction, they are arranged at positions that do not interfere with each other during the change adjustment operation between the stocks, so that the switching operation is easy to perform. Become.

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請求項１記載の発明は、植付装置（３０）への伝動速を切り替える切替アクチュエータ（１６）を回動させる回動部材（１４）とアーム軸（１５）を操作する株間調節部材（７）を前後方向に長く形成したことにより、株間調節部材（７）の操作側を他の部材に干渉せず操作しやすい位置に配置することができるので、株間調節部材（７）の操作性が向上する。
また、株間調節部材（７）の調節回動軸（８）を支持部材（３）の左右方向略中央部に配置し、回動部材（１４）を調節回動軸（８）よりも機体前側に設けると共に、株間調節部材（７）の操作部を調節回動軸（８）よりも機体後側に形成することによって、操作部から株間操作部材（７）までの距離を長く取ることができるので、株間操作部材（７）の操作に要する力が軽減されるため、株間の調節に要する労力が軽減される。
また、支持部材（３）を門型に形成し、調節回動軸（８）よりも後部に延設部（４）を形成したことにより、支持部材（３）の剛性が向上するので、株間調節部材（７）の操作荷重が軽減され、株間調節機構（Ｓ）の操作性が向上する。 First aspect of the present invention, strains adjustment member (7 to manipulate the planting device and the rotating member for rotating the switching actuator (16) for switching the transmission speed to (30) (14) arm shaft (15) ) Is formed long in the front-rear direction, so that the operation side of the inter-strain adjustment member (7) can be arranged at a position where it can be easily operated without interfering with other members. improves.
Also, adjusting pivot axis (8) arranged in the lateral direction substantially central portion of the support member (3), times the aircraft forward of the adjusting pivot shaft rotary members (14) (8) between strains adjustment member (7) In addition, by forming the operation part of the inter-strain adjustment member (7) on the rear side of the machine body from the adjustment rotating shaft (8) , the distance from the operation part to the inter-strain operation member (7) can be increased. Therefore, since the force required for operation of the inter-strain operation member (7) is reduced, the labor required for adjustment between the strains is reduced.
The support member (3) is formed in a gate-type, by forming the extended portion (4) to the rear than the shaft (8) regulatory times, the rigidity of the support member (3) is improved, The operation load of the inter-strain adjustment member (7) is reduced, and the operability of the inter-strain adjustment mechanism (S) is improved.

請求項２記載の発明は、請求項１記載の発明の効果に加えて、支持部材（３）及び延設部（４）の上部にステップ分（５）を配置したことにより、作業者がステップ部（５）に乗る際の荷重への耐久性が向上するので、荷重によりステップ（５）が動くことが防止され、機体上での作業性が向上する。 According to the second aspect of the present invention, in addition to the effect of the first aspect of the invention, the step (5) is arranged on the support member (3) and the extended portion (4) so that the operator can Since durability against a load when riding on the part (5) is improved, the step (5) is prevented from moving by the load, and workability on the machine body is improved.

また、作業操作部材（１０）に繋がる作業変更部材（１２）を、延設部（４）の下部を通過させて配置したことにより、作業操作部材（１０）の操作に連動した作業変更部材（１２）の上下動を延設部（４）が規制するため、作業変更部材（１２）がステップ部（５）の下面に接触することを防止できるので、ステップ部（５）及び作業操作部材（１０）が接触時の摩擦で消耗・破損することが防止され、耐久性が向上する。
さらに、作業操作部材（１０）とステップ部（５）の接触が防止されることにより、接触時に生じる異音の発生を防止することができるので、作業者が不快さを感じることが防止され、作業者の労力が軽減される。 In addition, the work change member (12) connected to the work operation member (10) is disposed through the lower portion of the extension part (4), so that the work change member (10) linked to the operation of the work operation member (10) ( Since the extension part (4) regulates the vertical movement of 12), the work changing member (12) can be prevented from coming into contact with the lower surface of the step part (5), so the step part (5) and the work operation member ( 10) is prevented from being consumed and damaged by friction during contact, and durability is improved.
Furthermore, since the contact between the work operation member (10) and the step portion (5) is prevented, it is possible to prevent the generation of abnormal noise generated at the time of contact, so that the operator is prevented from feeling uncomfortable, The labor of the worker is reduced.

請求項３記載の発明は、請求項１または２記載の発明の効果に加えて、調節回動軸（８）よりも後位置に向けて株間操作部材（７）を屈曲させ、株間操作部材（７）の操作部を後上り傾斜姿勢としたことにより、株間操作部材（７）の操作部側の下方に空間部を形成することができるので、ステップ部（５）の着脱が容易になり、メンテナンス性が向上する。 In addition to the effect of the invention described in claim 1 or 2, the invention described in claim 3 bends the stock operation member (7) toward the rear position with respect to the adjustment rotation shaft (8). 7) Since the operation part of 7) is in a rear-upward inclined posture, a space part can be formed below the operation part side of the inter-stock operation member (7), so that the step part (5) can be easily attached and detached. Maintainability is improved.

請求項４記載の発明は、請求項１から３のいずれか１項に記載の発明の効果に加えて、株間操作部材（７）の操作方向と補助株間操作部材（９）の操作方向を同じ方向としたことにより、株間の切替操作を行なう際に株間操作部材（７）と補助株間操作部材（９）が干渉することを防止できるので、株間調節機構（Ｓ）の操作性が向上する。
また、操作方向が同じであることにより、株間の調節を行なう際の操作手順が簡単になるので、作業能率が向上する。 In addition to the effect of the invention according to any one of claims 1 to 3, the invention described in claim 4 has the same operation direction of the inter-strain operation member (7) and the operation direction of the auxiliary inter-strain operation member (9). By adopting the direction, it is possible to prevent the inter-strain operation member (7) and the auxiliary inter-strain operation member (9) from interfering when performing the switching operation between the strains, so that the operability of the inter-strain adjustment mechanism (S) is improved.
Further, since the operation direction is the same, the operation procedure for adjusting the strain is simplified, so that the work efficiency is improved.

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株間変更レバー部の側面図Side view of the stock change lever 株間変更レバー部の平面図Plan view of the stock change lever 運転フロア部の側面図Side view of the operation floor 苗移植機の側面図Side view of seedling transplanter 苗移植機の平面図Top view of seedling transplanter

図１〜図５で示すとおり、本件構成の苗移植機は、車体４０の前部左右に、ステアリングポスト１上に設けたステアリングハンドル１８の操舵によって操向するフロントアスルハウジング１９，１９をそれぞれ設け、該フロントアクスルハウジング１９，１９にそれぞれ前輪４１を駆動回転可能に装着する。 As shown in FIGS. 1 to 5, the seedling transplanter of the present configuration is provided with front axle housings 19, 19 that are steered by steering of a steering handle 18 provided on the steering post 1 on the left and right of the front part of the vehicle body 40, respectively. The front wheels 41 are mounted on the front axle housings 19 and 19 so as to be driven to rotate.

そして、車体４０の後部の左右両側にリヤアクスルハウジング２０，２０をそれぞれ設け、リヤアクスルハウジング２０，２０の車軸にそれぞれ後輪４２，４２を装着する。
また、前記車体４０の上部中央位置に、作業者が着座する運転シート４３を設け、該運転シート４３の下側に走行や植付作業を行う駆動力を発生させるエンジン４４を搭載し、苗移植機を走行する乗用四輪走行形態とする。 Rear axle housings 20 and 20 are respectively provided on the left and right sides of the rear portion of the vehicle body 40, and rear wheels 42 and 42 are mounted on the axles of the rear axle housings 20 and 20, respectively.
In addition, an operation seat 43 on which an operator is seated is provided at an upper center position of the vehicle body 40, and an engine 44 for generating a driving force for running and planting work is mounted below the operation seat 43, and seedling transplantation is performed. A four-wheeled riding mode for running a machine.

該車体４０の後方には、平行リンク２１を介して多条植形態（本件の図５では４条の苗移植機を開示しているが、４条以外の条数にも対応可能とする。）の植付部６を連結して、前記車体４０側からＰＴＯ軸２２を経て伝動して植付作動する構成としている。 On the rear side of the vehicle body 40, a multi-row planting form (four-row seedling transplanting machine is disclosed in FIG. 5 of the present case) via the parallel link 21, but the number of strips other than four can be accommodated. ), The planting portion 6 is connected to the vehicle body 40 through the PTO shaft 22 and planted.

そして、前記エンジン４４の上側部を覆うシートカバー４６は、前側の運転フロア５及び左右両側のサイドフロア４５から上方へ高く膨出形成されるものとし、該シートカバー４６上面に、前記運転シート４３を設けている。前記サイドフロア４５の前部は、ステアリングポスト１の両側部に亘って形成し、外側部に補助苗受台２３を配置し、後部は運転シート４３の後側部のリヤステップ２４に連結して、運転者が上記運転フロア５の上側を前後に移動し易く形成している。 The seat cover 46 covering the upper portion of the engine 44 is formed to bulge upward from the front operation floor 5 and the left and right side floors 45, and the operation seat 43 is formed on the upper surface of the seat cover 46. Is provided. The front part of the side floor 45 is formed over both sides of the steering post 1, the auxiliary seedling receiving base 23 is arranged on the outer side, and the rear part is connected to the rear step 24 on the rear side part of the driving seat 43. The driver can easily move the upper side of the driving floor 5 back and forth.

前記植付部６は、苗植伝動ケースからなる苗植フレーム２５の下側にセンタフロート２６と左右のサイドフロート２７，２７を配置して、後部には後下り傾斜の苗タンク２８を左右往復移動するように設け、後側下部には各苗タンク２８の苗取口２９から進入し、該苗タンク２９から苗を分離保持して圃場に植え付ける植付装置３０を配置する。上記のセンタフロート２６、及びサイドフロート２７，２７は左右一定間隔の苗植付位置の土壌面を滑走均平するものであり、各均平跡の土壌面に植付装置３０による一定の植付軌跡線Ｄの作動で苗を植え付ける多条植形態に構成している。 The planting part 6 has a center float 26 and left and right side floats 27 and 27 arranged below the seedling planting frame 25 comprising a seedling planting transmission case, and a rearwardly inclined seedling tank 28 is reciprocated left and right at the rear part. A planting device 30 is disposed in the lower part of the rear side so as to enter from a seedling inlet 29 of each seedling tank 28 and separate and hold seedlings from the seedling tank 29 so as to plant the seedlings in the field. The center float 26 and the side floats 27, 27 are for smoothing and smoothing the soil surface at the seedling planting positions at regular intervals on the left and right sides. It is comprised in the multi-row planting form which plants a seedling by the action | operation of the locus line D. FIG.

また、前記車体４０のリヤフレーム３１に連結される平行リンク２１は、昇降シリンダ３２によって昇降制御されており、前記センタフロート２６及びサイドフロート２７，２７が略一定の圧力で土壌面を滑走均平するように構成している。前記リヤフレーム３１上に施肥装置３３を設けて、該施肥装置３３から繰り出される肥料を各条毎に供給ホース３４を介して植付装置３０の苗植付位置の周囲近傍に供給する。 The parallel link 21 connected to the rear frame 31 of the vehicle body 40 is lifted and lowered by a lift cylinder 32, and the center float 26 and the side floats 27, 27 are leveled on the soil surface with a substantially constant pressure. It is configured to do. A fertilizer device 33 is provided on the rear frame 31, and fertilizer fed from the fertilizer device 33 is supplied to the vicinity of the seedling planting position of the planting device 30 via the supply hose 34 for each strip.

そして、前記センタフロート２６及びサイドフロート２７，２７の前側には、均平前の土壌面を予め代掻する整地センタロータ３５及び左右のサイドロータ３６，３６を設け、前記リヤアクスルハウジング２０，２０の伝動機構から連動軸３７，３７を介してそれぞれ伝動回転する構成とする。 Further, a leveling center rotor 35 and left and right side rotors 36, 36 for scratching the soil surface before leveling in advance are provided on the front side of the center float 26 and the side floats 27, 27. The transmission mechanism is configured to transmit and rotate through the interlocking shafts 37 and 37, respectively.

前記シートカバー４６下のエンジンルーム４７の底部にはエンジン４４を配置し、該エンジン４４の前方の油圧無段変速装置４８の入力軸４９との間にベルト５０を無端状に巻回して伝動する。該油圧無段変速装置４８はミッションケース２の上側に設けられ、該ミッションケース２の入力軸により伝動するものである。 An engine 44 is disposed at the bottom of the engine room 47 below the seat cover 46, and a belt 50 is wound endlessly between the input shaft 49 of the hydraulic continuously variable transmission 48 in front of the engine 44 and transmitted. . The hydraulic continuously variable transmission 48 is provided on the upper side of the mission case 2 and is transmitted by the input shaft of the mission case 2.

さらに、前記ミッションケース２の横側から、前記フロントアクスルハウジング１９，１９の伝動機構を介して前輪４１，４１を伝動回転し、後側の伝動軸５１，５１を介してリヤアクスルハウジング２０，２０の後輪４２，４２を伝動すると共に、ＰＴＯ連動軸５２を介して前記ＰＴＯ軸２２を回転させる構成とする。 Further, from the side of the transmission case 2, the front wheels 41, 41 are transmitted and rotated via the transmission mechanism of the front axle housings 19, 19, and the rear axle housings 20, 20 are transmitted via the rear transmission shafts 51, 51. The rear wheels 42 and 42 are transmitted, and the PTO shaft 22 is rotated via the PTO interlocking shaft 52.

前記ステアリングポスト１は、運転シート４３の前側に形成の運転フロア５前部に立設されて、前側面をフロントカバー５３で覆い、後側部をステアリングポストカバー１７で覆う形態である。該ステアリングポスト１及び運転フロア５の下側にミッションケース２及び油圧無段変速装置４８が配置され、前記ミッションケース２の左右両側に突出のフロントアクスルハウジング１９，１９の側端部に前輪４１，４１を軸装する操向ケースが、前記ステアリングハンドル１８の操作によって操向される構成である。 The steering post 1 is erected on the front portion of the driving floor 5 formed on the front side of the driving seat 43, covers the front side surface with the front cover 53, and covers the rear side portion with the steering post cover 17. A transmission case 2 and a hydraulic continuously variable transmission 48 are disposed below the steering post 1 and the driving floor 5, and front wheels 41, at the side ends of the front axle housings 19, 19 projecting from the left and right sides of the transmission case 2. The steering case that shafts 41 is steered by operating the steering handle 18.

前記ミッションケース２の入力軸部に出力される油圧無段変速装置４８は、中立位置から前進変速位置、及び後進高速位置へ無段変速操作できる主変速装置を構成する。そして、この主変速装置の変速操作は、右足操作のアクセルペダル５４によってトラニオン軸を連動して無段変速操作できる。前記油圧無段変速装置４８の出力軸からミッションケース２の入力軸への伝動は、前輪４１、後輪４２へ連動の走行伝動系と、ＰＴＯ連動軸５２からＰＴＯ２２を経て植付部６を伝動する苗植伝動系とに分かれて伝動する形態であり、この走行伝動系に前記副変速レバー１０で操作の副変速装置を設けている。 The hydraulic continuously variable transmission 48 output to the input shaft portion of the mission case 2 constitutes a main transmission that can be continuously variablely shifted from the neutral position to the forward shift position and the reverse high speed position. The speed change operation of the main transmission can be continuously changed by interlocking the trunnion shaft with the accelerator pedal 54 for the right foot operation. The transmission from the output shaft of the hydraulic continuously variable transmission 48 to the input shaft of the transmission case 2 is transmitted to the planting part 6 from the traveling transmission system linked to the front wheels 41 and the rear wheels 42 and from the PTO interlocking shaft 52 via the PTO 22. The sub-transmission device that is operated by the sub-transmission lever 10 is provided in the traveling transmission system.

また、前記植付部６を伝動する植付伝動系に、前記株間変更レバー７の操作で苗植伝動速を通常速と疎植速に切り替えて、苗を植え付ける株間を変更する構成としている。
そして、この植付伝動系には、株間副変更レバー９の操作で、前記通常速、及び疎植速の各苗植伝動速を更に細かく副変速して伝動させる苗植副変速装置、又は株間副変更装置Ｂを設けている。これら株間変更機構Ｓ、及び株間副変更装置Ｔを経てＰＴＯ連動軸５２へ伝動回転される。従って、これら株間変更機構Ｓ、又は株間副変更装置Ｔの変速操作によって、走行車輪４１、４２による走行速に対する植付部６の苗植伝動速を変更して、苗植付条方向の植付株間隔を粗、密に変更、調節することができる形態である。 The planting transmission system for transmitting the planting unit 6 is configured to change the planting planting speed by switching the planting transmission speed between the normal speed and the sparse planting rate by operating the plant changing lever 7.
And in this planting transmission system, the seedling planting sub-transmission device which transmits the planting transmission speeds of the normal speed and the sparse planting speed by sub-shifting more finely by operating the inter-plant sub-change lever 9, or between the plants A sub-change device B is provided. The rotation is transmitted to the PTO interlocking shaft 52 through the inter- stock change mechanism S and the inter-stock sub change device T. Therefore, planting in the direction of the seedling planting line is performed by changing the seedling planting transmission speed of the planting unit 6 with respect to the traveling speed by the traveling wheels 41 and 42 by the speed change operation of the inter- stock changing mechanism S or the inter-stock sub-changing device T. This is a mode in which the stock interval can be changed and adjusted roughly and densely.

ここにおいて、ステアリングポスト１の後側下部のミッションケース２上側部に、左右方向にまたぐように門形状の支持ブラケット３を取付けて、この支持ブラケット３の上側面部４を車体の運転フロア５と略同高さに形成し、この支持ブラケット３の上側面部４に、植付部６の伝動速を変更操作して苗植付株間間隔を変更する株間変更レバー７をレバー軸８周りに操作可能に設けた株間変更操作装置Ｓの構成とする。 Here, a gate-shaped support bracket 3 is attached to the upper side of the transmission case 2 at the rear lower part of the steering post 1 so as to stride in the left-right direction, and the upper side surface portion 4 of the support bracket 3 is connected to the driving floor 5 of the vehicle body. Operate an inter-strain change lever 7 around the lever shaft 8 to change the distance between seedlings and planting strains by changing the transmission speed of the planting unit 6 on the upper side surface 4 of the support bracket 3. The configuration of the inter- stock change operating device S is provided as possible.

苗を植えつける株間を設定、変更して植付させるための株間変更レバー７や、株間副変更レバー９等は、苗の植付作業全体において操作頻度が少ない操作具であるため、運転者の足元の、運転操作の邪魔になり難い個所であるステアリングポスト１部の下部で且つ運転フロア５の前端部に位置して配置しており、前記株間変更レバー７をレバー軸８の周りに回動して、ミッションケース２内の植付部６へ伝動する苗植伝動機構を変更操作する。 The inter-strain change lever 7 and the inter-strain sub-change lever 9 for setting, changing and planting the seedling planting plant are operating tools that are less frequently operated throughout the seedling planting operation. Located at the bottom of the steering post 1 and at the front end of the driving floor 5 that is difficult to interfere with the driving operation at the foot, the inter-stock change lever 7 is rotated around the lever shaft 8. Then, the seedling planting transmission mechanism that transmits to the planting unit 6 in the mission case 2 is changed.

該変更操作は、圃場の一端部から他端部までを直線状に走行して苗を植え付ける作業、即ち一工程の植付作業時に圃場に植えられる苗の株数を、例えば「５０株」と「６０株」と「７０株」といった、複数段階の間隔に切り替えるものである。一方、上記のような間隔の変更でなく、植付間隔を疎植間隔位値と通常植間隔に切替操作するときは、この株間変更レバー７の横側近くに配置の株間副変更レバー９を操作して、ミッションケース２内の植付部６への伝動機構を切替操作することにより、株間変更レバー７の操作による株間の変更量が切り替えられる。 The change operation is an operation of linearly running from one end to the other end of the field to plant seedlings, that is, the number of seedlings planted in the field at the time of one-step planting operation, for example, “50 strains” and “ Switching between multiple stages, such as “60 shares” and “70 shares”. On the other hand, when switching the planting interval to the sparse planting interval position value and the normal planting interval, instead of changing the interval as described above, the inter-organization sub-change lever 9 disposed near the lateral side of the inter-organization change lever 7 is By operating and switching the transmission mechanism to the planting part 6 in the mission case 2, the amount of change between the stocks by the operation of the stock change lever 7 is switched.

なお、疎植間隔位置に株間副変更レバー９を操作した場合、株間変更レバー７の切替操作を行うと、苗の株数は例えば、「３７株」と「４２株」と「４７株」とに切り替えられる。 In addition, when the inter-strain sub-change lever 9 is operated at the sparse planting interval position, when the inter-strain change lever 7 is switched, the number of seedlings is changed to, for example, “37 shares”, “42 shares” and “47 shares”. Can be switched.

前記株間変更レバー７は、支持ブラケット３の上側面部４上にレバー軸８で支持されていて、このレバー軸８の周りに左右方向へ回動操作することによって、苗植伝動機構を切替える。この支持ブラケット３はミッションケース２の上側に左右方向に門形状にわたって形成されるもので、株間変更レバー７の形態と共に適宜の仕様に設定して、ステアリングポスト１の下部のステアリングポストカバー１７の内側に収納され易い形態として、運転者の足元部の邪魔にならないように構成することができる。しかも、このステアリングポスト１の下部に配置することによって、株間変更レバー７の操作を行い易くする。 The inter-plant change lever 7 is supported on the upper side surface portion 4 of the support bracket 3 by a lever shaft 8, and is rotated around the lever shaft 8 in the left-right direction to switch the seedling planting transmission mechanism. This support bracket 3 is formed on the upper side of the mission case 2 in a gate shape in the left-right direction. The support bracket 3 is set to an appropriate specification together with the shape of the stock change lever 7 and is arranged inside the steering post cover 17 below the steering post 1. As a form that can be easily stored in the vehicle, it can be configured not to obstruct the driver's feet. In addition, by disposing the steering post 1 at the lower part, it is easy to operate the stock change lever 7.

また、前記各間変更レバー７の横側下部近くに、この株間変更レバー７の操作で切替えられた株間変更の伝動速位置を更に副変速して株間間隔を変更する株間副変速レバー９を設ける。 Further, an inter-stock sub-shift lever 9 is provided near the lower side of each inter-change lever 7 to change the inter-stock interval by further sub-shifting the transmission speed position of the inter-organ change changed by operating the inter-stock change lever 7. .

前記のように株間変更レバー７と株間副変更レバー９は、ステアリングポスト１の下部において、左右方向に配置されるため、株間の変更調節操作の粗、密調節関連の切替操作を行い易くする。この株間変更レバー７は先端把持部を上側へ屈曲させて運転フロア５の上側へ高く位置させて、運転者の足元の邪魔にならないように形成している。 As described above, the inter- stock change lever 7 and the inter-stock sub change lever 9 are arranged in the left-right direction below the steering post 1, so that it is easy to perform the coarse and fine adjustment-related switching operations between the stock changes. The inter-stock change lever 7 is formed so as not to obstruct the driver's feet by bending the tip gripping portion upward and positioning it high above the driving floor 5.

さらに、株間副変更レバー９は運転フロア５のフロア面と略動程度の高さ位置において左右回動操作できるように構成しているため、ＨＳＴペダル５４や、ブレーキペダル等の踏込み操作等の邪魔になり難くしている。そして、これら株間変更レバー７と株間副変更レバー９は、上下段違いに設定しているため、左右回動操作状態において相互の干渉を防止することができ、左右方向に接近させて配置して、操作性を高めることができる。 Further, since the inter-stock sub-change lever 9 is configured so as to be able to rotate left and right at a height position that is substantially movable with respect to the floor surface of the operation floor 5, it interferes with the stepping operation of the HST pedal 54, the brake pedal, etc. It is difficult to become. And since these inter- stock change lever 7 and inter-stock sub change lever 9 are set upside down, they can prevent mutual interference in the left-right rotation operation state, and are arranged close to the left-right direction, Operability can be improved.

また、前記支持ブラケット３の下側で、ミッションケース２の上面との間に、走行伝動変速の副変速レバー１０によって副変速シフター１１を連動する連動ロッド１２を位置させて設ける。 Further, an interlocking rod 12 that interlocks the sub-shift shifter 11 with the sub-transmission lever 10 for traveling transmission is provided below the support bracket 3 and between the upper surface of the transmission case 2.

前記株間変更レバー７は、支持ブラケット３の上側面部４上のレバー軸８周りに左右回動操作される。このステアリングポスト１の一側部に配置の副変速レバー１０を操作することによって、前記ミッションケース２内の走行伝動系の副変速機構を変速操作して、路上等を高速走行するように高速域に変速したり、植付部６を土壌面に滑走させて低速域の苗植走行速で走行するように低速域に変速するように切替操作する。このとき、左右一側部の副変速レバー１０と、これと反対側の副変速シフター１１との間が、前記ミッションケース２の上面と支持ブラケット３の上側面部４との間隔部を横方向に通す連動ロッド１２で連結するため、この連動ロッド１２の作動されるスペースを正確に維持して、連動ロッド１２の作動に抵抗力を与えないようにする。 The inter-stock change lever 7 is operated to rotate left and right around the lever shaft 8 on the upper side surface 4 of the support bracket 3. By operating a sub-transmission lever 10 disposed on one side of the steering post 1, the sub-transmission mechanism of the traveling transmission system in the transmission case 2 is operated to change the speed so as to travel on the road at high speed. Or switching operation to shift to a low speed range so that the planting portion 6 slides on the soil surface and travels at a low speed range. At this time, the space between the upper surface portion of the transmission case 2 and the upper side surface portion 4 of the support bracket 3 is laterally defined between the auxiliary transmission lever 10 on the left and right side and the auxiliary transmission shifter 11 on the opposite side. Since the interlocking rod 12 is connected to the connecting rod 12, the space in which the interlocking rod 12 is operated is accurately maintained, and resistance is not applied to the operation of the interlocking rod 12.

さらに、前記株間変更レバー７の先端部のフックピン１３の係合によって左右方向へ回動される回動アーム１４を、前後方向に傾斜するアーム軸１５の周りに回動可能に支持し、このアーム軸１５の下端部には、ミッションケース２の株間変更伝動速を切替連動する切替アクチュエータ１６を設ける。 Further, a pivot arm 14 that is pivoted in the left-right direction by the engagement of the hook pin 13 at the tip of the inter-stock change lever 7 is supported so as to be pivotable around an arm shaft 15 that is inclined in the front-rear direction. At the lower end of the shaft 15, a switching actuator 16 that switches and interlocks the inter-change change transmission speed of the mission case 2 is provided.

前記株間変更するときは、株間変更レバー７を操作することによって、ミッションケース２内の植付部６へ伝動する伝動機構を主変速する。このとき株間変更レバー７をレバー軸８の周りに左右方向へ回動することによって、前端部のフックピン１３で回動アーム１４の長穴３８に係合してアーム軸１５周りに左右方向へ回動して、このアーム軸１５、及び切替アクチュエータ１６を、回動操作することができる。このアーム軸１５を前後方向へ傾斜させて、上端側を後側のレバー軸８側へ接近させるようにして傾斜させているため、この株間変更レバー７の先端のフックピン１３の回動径を短かくして、回動アーム１４に係合させて回動操作することができる。 When changing between the stocks, the transmission mechanism that transmits power to the planting part 6 in the mission case 2 is shifted by operating the stock change lever 7. At this time, by rotating the stock change lever 7 around the lever shaft 8 in the left-right direction, the hook pin 13 at the front end engages with the elongated hole 38 of the turning arm 14 and rotates around the arm shaft 15 in the left-right direction. By moving, the arm shaft 15 and the switching actuator 16 can be rotated. Since the arm shaft 15 is inclined in the front-rear direction and the upper end side is inclined toward the rear lever shaft 8 side, the pivot diameter of the hook pin 13 at the tip of the inter- stock change lever 7 is shortened. Thus, it can be rotated by engaging with the rotating arm 14.

前記植付部６を伝動する苗植伝動系に株間変更装置Ｓと株間副変更装置Ｔを配置するものであるから、これらは左右に接近して配置されて、株間変更レバー７によって回動される切替アクチュエータ１６と、株間副変更レバー９によって回動される切替アクチュエータ５４の関係位置も左右に接近して配置される。従って、これら各レバー７、９を変更回動操作の方向を同調方向に操作できるように設定するか、または、図１のように上下段違いに配置することによって、レバー７、９相互間を接近させても干渉操作を防止することができる。 Since the inter-strain changing device S and the inter-strain sub-changing device T are arranged in the seedling planting transmission system that transmits the planting part 6, these are arranged close to the left and right and rotated by the inter-strain changing lever 7. The switching actuator 16 and the switching actuator 54 rotated by the inter-stock sub-change lever 9 are also arranged close to the left and right. Accordingly, by setting these levers 7 and 9 so that the direction of the changing rotation operation can be operated in the tuning direction, or by arranging them in a different vertical position as shown in FIG. 1, the levers 7 and 9 are brought closer to each other. Even if it is made to interfere, an interference operation can be prevented.

前記ステアリングポスト１の上部には、図３（ａ）及び図３（ｂ）で示すとおり、ギヤードモータ５５を設ける。該ギヤードモータ５５は、前記ステアリングハンドル１８が所定の操向旋回角回動されたことが検出されると、副変速操作レバー１０を植付部６の「下降」位置に駆動力によって移動させ、前記伸縮シリンダ３２の油圧回路の昇降制御弁を連動させて、植付部６を作業姿勢から非作業姿勢へ上昇させたり、又は逆に下降させる構成としている。 As shown in FIG. 3A and FIG. 3B, a geared motor 55 is provided on the steering post 1. When the geared motor 55 detects that the steering handle 18 has been rotated by a predetermined steering turning angle, the geared motor 55 moves the auxiliary transmission operation lever 10 to the “down” position of the planting portion 6 by a driving force, The planting portion 6 is raised from the working posture to the non-working posture or is lowered in reverse by interlocking with the elevation control valve of the hydraulic circuit of the telescopic cylinder 32.

前記図３（ａ）及び（ｂ）においては、ステアリングハンドル１８が、ステアリング軸５６の上端部に対して、上下裏返して着替できるように構成し、運転者の操作高さに適合し易くしたものである。このステアリングハンドル１８は、傘形状に形成されて、中央部の取付座５７を下側にして取付けて、ナット５８で締め付けると、ハンドル把持位置は高くなり（Ｈ）、この取付座５７を上側にして取付けるとハンドル位置は低くなる（Ｌ）。５９はキャップである。 3 (a) and 3 (b), the steering handle 18 is configured so that it can be changed upside down with respect to the upper end portion of the steering shaft 56, so that it can be easily adapted to the operating height of the driver. Is. The steering handle 18 is formed in an umbrella shape. When the steering seat 57 is attached with the center mounting seat 57 on the lower side and tightened with a nut 58, the handle gripping position becomes higher (H). The handle position is lowered (L). 59 is a cap.

２ミッションケース
３支持ブラケット（支持部材）
４上側面部（延設部）
５運転フロア（ステップ部）
６植付部
７株間変更レバー（株間操作部材）
８レバー軸（調節回動軸）
９株間副変更レバー（補助株間操作部材）
１０副変速レバー（作業操作部材）
１２連動ロッド（作業変更部材）
１３フックピン（フック部）
１４回動アーム（回動部材）
１５アーム軸
１６切替アクチュエータ（切替連動部材）
２８苗載せ部材
３０植付装置
４０車体
Ｓ株間調節機構
Ｔ株間副調節機構 2 Mission case 3 Support bracket (support member)
4 Upper side part (extension part)
5 Operation floor (step part)
6 Planting part 7 Stock change lever (members for stock operation)
8 Lever shaft (adjustment rotation shaft)
9 Inter-subsidiary change lever (operating member for auxiliary stock)
10 Sub-shift lever (work operation member)
12 Interlocking rod (work change member)
13 hook pin (hook part)
14 Rotating arm (Rotating member)
15 arm shaft
16 switching actuator (switching interlocking member)
28 seedling mounting members
30 planting equipment
40 Vehicle Body S Stock Control Mechanism T Stock Control

Claims

A transmission case (2) is provided at the front of the vehicle body (40), a seedling mounting member (28) for loading seedlings is provided at the rear of the vehicle body (40), and the seedlings loaded on the seedling mounting member (28) instill device (30) provided planting, the strains adjustment mechanism (S) the set digit seedling transplanter for adjusting the spacing instill seedlings with the plant (30), the
The hill space adjustment mechanism (S), said the transmission case (2) provided with a gate-shaped support member (3), and regulatory the upper rotating in the horizontal direction substantially central portion of the supporting member of the gantry (3) An inter-strain operation member (7) is provided via a shaft (8) , a hook part (13) is formed at the front end of the inter-strain operation member (7) , and an arm shaft (15) is attached to the hook part (13). When the rotating member (14) that rotates is engaged and provided, and the inter-plant operating member (7) is operated to rotate the rotating member (14) and the arm shaft (15), the planting device (30 ) And the switching interlocking member (16) for switching the transmission speed to
The pivoting member (14) regulating pivot axis (8) set only to the fuselage forward of the, the operation unit of the strains operating member before fuselage rear side of Sulfur butterfly clause times shaft (8) (7) A seedling transplanter characterized in that the extending portion (4) is formed at the rear of the adjusting rotation shaft (8) of the support member (3) .

A work operation member (10) for switching the sub-speed change mechanism for the travel speed of the vehicle body (40) to a road travel speed or a planting work speed is provided , and an operator puts his / her foot on the fuselage above the extension part (4). put step portion (5) provided, the working operation member according to claim 1, wherein passed through a lower portion, characterized in that arranged in the working changing member connected to the (10) (12) said extended portion (4) Seedling transplanter.

The inter-strain operation member (7) is bent toward the rear position with respect to the adjusting rotation shaft (8), and the operation part of the inter-strain operation member (7) is set in a rear upward tilt posture. The seedling transplanter according to claim 1 or 2.

An auxiliary inter-strain operation member (9) that changes between stocks to be switched by the inter-strain operation member (7) is provided, and the operation direction of the auxiliary inter-strain operation member (9) is the same as the operation direction of the inter-strain operation member (7). seedling transplantation machine according to any one of claims 1 to 3, characterized in that the configuration and the.