JP2003079203A - Mobile agricultural machine - Google Patents
Mobile agricultural machineInfo
- Publication number
- JP2003079203A JP2003079203A JP2001271914A JP2001271914A JP2003079203A JP 2003079203 A JP2003079203 A JP 2003079203A JP 2001271914 A JP2001271914 A JP 2001271914A JP 2001271914 A JP2001271914 A JP 2001271914A JP 2003079203 A JP2003079203 A JP 2003079203A
- Authority
- JP
- Japan
- Prior art keywords
- hydraulic
- frame
- pipe
- fuel
- case
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002184 metal Substances 0.000 claims abstract description 13
- 238000001816 cooling Methods 0.000 claims abstract description 11
- 238000005096 rolling process Methods 0.000 claims description 19
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 41
- 239000003921 oil Substances 0.000 description 22
- 230000005540 biological transmission Effects 0.000 description 18
- 239000002828 fuel tank Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010720 hydraulic oil Substances 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000000630 rising effect Effects 0.000 description 6
- 241000209094 Oryza Species 0.000 description 4
- 235000007164 Oryza sativa Nutrition 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 4
- 235000009566 rice Nutrition 0.000 description 4
- 241000196324 Embryophyta Species 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 3
- 239000010727 cylinder oil Substances 0.000 description 3
- 239000003337 fertilizer Substances 0.000 description 3
- 230000035945 sensitivity Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000003028 elevating effect Effects 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 238000004260 weight control Methods 0.000 description 1
Landscapes
- Lifting Devices For Agricultural Implements (AREA)
- Motor Power Transmission Devices (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は油圧で駆動する油圧
駆動部を備えた田植機或いはトラクタなどの移動農機に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mobile agricultural machine such as a rice transplanter or a tractor equipped with a hydraulic drive unit that is hydraulically driven.
【０００２】[0002]
【発明が解決しようとする課題】従来、油圧式無段変速
機構などの油圧駆動部や油圧式ローリング制御機構に油
圧を供給する油管にはビニールパイプなどの高圧用軟管
を用いているが、油圧の温度が上昇して高温になると油
圧駆動部の効率が悪化したり、油圧式ローリング制御機
構の作動速度が一定とならず精度の良いローリング制御
が行えなかった。Conventionally, a high-pressure soft pipe such as a vinyl pipe is used as an oil pipe for supplying hydraulic pressure to a hydraulic drive unit such as a hydraulic continuously variable transmission mechanism or a hydraulic rolling control mechanism. When the temperature of the hydraulic pressure rises to a high temperature, the efficiency of the hydraulic drive unit deteriorates, and the operating speed of the hydraulic rolling control mechanism is not constant, so that accurate rolling control cannot be performed.
【０００３】[0003]
【課題を解決するための手段】したがって本発明は、油
圧で駆動する油圧駆動部を備えた移動農機において、油
圧駆動部に接続させる油圧配管を金属製に形成すると共
に、エンジン冷却風取入口近傍に金属製油圧配管を配置
させて、極めて経済的な手段によって油圧式無段変速機
など油圧駆動部に供給する油の冷却効果を高めて、油圧
駆動部の駆動効率を容易に向上させるものである。SUMMARY OF THE INVENTION Therefore, according to the present invention, in a mobile agricultural machine equipped with a hydraulic drive unit driven by hydraulic pressure, hydraulic pipes connected to the hydraulic drive unit are made of metal and the vicinity of an engine cooling air intake port is formed. By arranging a metal hydraulic pipe on the inside, the cooling effect of the oil supplied to the hydraulic drive unit such as the hydraulic continuously variable transmission can be enhanced by an extremely economical means, and the drive efficiency of the hydraulic drive unit can be easily improved. is there.
【０００４】また、作業部を水平に維持させるローリン
グ制御機構を備えると共に、ローリング制御機構に接続
させる配管の少なくとも一部を金属製管に形成して、ロ
ーリング制御機構に供給される制御作動油の温度上昇を
防止して、ローリング制御の精度を良好とさせると共
に、機体後方のローリング制御機構までの比較的長尺な
配管が損傷するなどの不都合を防止して配管の耐久性を
向上させるものである。Further, a rolling control mechanism for keeping the working section horizontal is provided, and at least a part of the pipe connected to the rolling control mechanism is formed of a metal pipe to control the control oil supplied to the rolling control mechanism. Prevents temperature rise, improves rolling control accuracy, and prevents inconvenience such as damage to the relatively long pipe up to the rolling control mechanism at the rear of the machine to improve the durability of the pipe. is there.
【０００５】[0005]
【発明の実施の形態】以下、本発明の実施例を図面に基
づいて詳述する。図１は全体の側面図、図２は同平面
図、図３は車体フレームの側面図、図４は同平面図を示
し、図中１は作業者が搭乗する走行車であり、エンジン
２を車体フレーム３に搭載させ、ミッションケース４側
方にフロントアクスルケース５を介して水田走行用前輪
６を支持させると共に、前記ミッションケース４後方の
リヤアクスルケース７に水田走行用後輪８を支持させ
る。そして前記エンジン２等を覆うボンネット９両側に
予備苗載台１０を取付けると共に、作業者が搭乗する車
体カバー１１によって前記ミッションケース４等を覆
い、前記車体カバー１１後側上方にシートフレーム１２
を介して運転席１３を取付け、その運転席１３の前方で
前記ボンネット９後部に操向ハンドル１４を設ける。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. 1 is a side view of the whole, FIG. 2 is a plan view of the same, FIG. 3 is a side view of a vehicle body frame, and FIG. 4 is a plan view of the same. In FIG. 1, 1 is a traveling vehicle on which an operator rides, and an engine 2 is installed. It is mounted on the vehicle body frame 3, and the front wheel 6 for traveling paddy fields is supported to the side of the mission case 4 via the front axle case 5, and the rear axle case 7 behind the mission case 4 supports rear wheels 8 for traveling paddy field. The spare seedling mounts 10 are attached to both sides of the bonnet 9 that covers the engine 2 and the like, and the mission case 4 and the like are covered by a vehicle body cover 11 on which an operator rides.
A driver's seat 13 is attached via a steering wheel 14, and a steering handle 14 is provided in front of the driver's seat 13 at the rear part of the hood 9.
【０００６】また、図中１５は５条植え用の苗載台１６
並びに複数の苗植付爪１７などを具備する植付部であ
り、前高後低の合成樹脂製の前傾式苗載台１６を下部レ
ール１８及びガイドレール１９を介して植付ケース２０
に左右往復摺動自在に支持させると共に、一方向に等速
回転させるロータリケース２１を前記植付ケース２０に
支持させ、該ケース２１の回転軸芯を中心に対称位置に
一対の爪ケース２２・２２を配設し、その爪ケース２２
・２２先端に苗植付爪１７・１７を取付ける。Reference numeral 15 in the drawing denotes a seedling mount 16 for planting 5 rows.
In addition, a planting section 20 is provided with a plurality of seedling planting claws 17 and the like, and a forward tilting type seedling mount 16 made of a synthetic resin having a high front and rear low is mounted via a lower rail 18 and a guide rail 19 to a planting case 20.
A rotary case 21 that is slidably reciprocated in the left and right directions and that is rotated at a constant speed in one direction is supported by the planting case 20, and a pair of claw cases 22 are provided at symmetrical positions with respect to the rotation axis of the case 21. 22 is provided and the claw case 22
・ Attach nails 17 with seedlings to the tip of 22.
【０００７】また、前記植付ケース２０前側のヒッチブ
ラケット２３をトップリンク２４及びロワーリンク２５
を含む昇降リンク機構２６を介し走行車１後側に連結さ
せ、前記リンク機構２６を介して植付部１５を昇降させ
る油圧昇降シリンダ２７をロワーリンク２５に連結さ
せ、前記前後輪６・８を走行駆動して移動すると同時
に、左右に往復摺動させる苗載台１６から一株分の苗を
植付爪１７によって取出し、連続的に苗植え作業を行う
ように構成する。The hitch bracket 23 on the front side of the planting case 20 is connected to the top link 24 and the lower link 25.
Is connected to the rear side of the traveling vehicle 1 via a lifting link mechanism 26 including a hydraulic lifting cylinder 27 that raises and lowers the planting part 15 via the link mechanism 26, is connected to the lower link 25, and the front and rear wheels 6 and 8 are connected. At the same time as the vehicle is driven and moved, the seedlings for one plant are taken out by the planting claws 17 from the seedling table 16 that slides back and forth to the left and right, and the seedling planting operation is continuously performed.
【０００８】また、図中２８は主変速レバー、２９は植
付部１５の昇降・植付クラッチの入切・マーカ操作を行
う植付操作レバー、３０はブレーキペダル、３１はアク
セルペダル、３２はデフロックペダル、３３は感度調節
レバー、３４は植付部１５を任意高さ位置に停止させる
植付油圧バルブストップレバー、３５はユニットクラッ
チレバーであり、操向ハンドル１４位置近傍に主変速及
び昇降レバー２８・２９やブレーキ及びアクセルペダル
３０・３１やデフロックペダル３２を配設すると共に、
運転席１３位置近傍に感度調節及びストップ及びユニッ
トクラッチレバー３３・３４・３５を配設している。Further, in the figure, 28 is a main gear shift lever, 29 is a planting operation lever for raising and lowering the planting section 15, turning on / off of a planting clutch, and marker operation, 30 is a brake pedal, 31 is an accelerator pedal, and 32 is Diff lock pedal, 33 is a sensitivity adjusting lever, 34 is a hydraulic valve stop lever with a plant for stopping the planting part 15 at an arbitrary height position, 35 is a unit clutch lever, and a main shift and elevating lever is provided near the steering handle 14 position. 28.29, brake and accelerator pedals 30, 31, and diff lock pedal 32 are provided,
Sensitivity adjustment and stop and unit clutch levers 33, 34 and 35 are arranged near the position of the driver's seat 13.
【０００９】さらに、図中３６は１条分均平用センタフ
ロート、３７は２条分均平用サイドフロート、３８は肥
料ホッパ３９内の肥料を送風機４０の送風力でフレキシ
ブル形搬送ホース４１を介しフロート３６・３７の側条
作溝器４２に排出させる５条用側条施肥機である。Further, in the figure, 36 is a center float for 1-line leveling, 37 is a side float for 2-line leveling, 38 is a fertilizer in a fertilizer hopper 39, and a flexible transport hose 41 is fed by a blower wind of a blower 40. It is a side-row fertilizer applicator for 5 rows that is discharged to the side-row grooving device 42 of the floats 36 and 37 through
【００１０】図３乃至図５に示す如く、前記車体フレー
ム３は前部フレーム４３と中間フレーム４４と後部フレ
ーム４５とに３分割させ、前部フレーム４３にエンジン
２を、中間フレーム４４にフロントアクスルケース５
を、後部フレーム４５にリヤアクスルケース７及びエン
ジン２に燃料を供給する燃料タンク４６などを設けるも
ので、前部フレーム４３は左右側フレーム４３ａ・４３
ｂの前端を前フレーム４７で、中間をベースフレーム４
８で相互に連結させて平面視４角枠状に形成し、左右側
フレーム４３ａ・４３ｂの固定ブラケット４９とベース
フレーム４８に防振ゴムを介しエンジン２を上載させる
ように構成しているAs shown in FIGS. 3 to 5, the vehicle body frame 3 is divided into a front frame 43, an intermediate frame 44, and a rear frame 45, and the engine 2 is mounted on the front frame 43 and the front axle is mounted on the intermediate frame 44. Case 5
The rear frame 45 is provided with a rear axle case 7 and a fuel tank 46 for supplying fuel to the engine 2, and the front frame 43 includes left and right side frames 43a and 43a.
The front end of b is the front frame 47, and the middle is the base frame 4
8 are connected to each other to form a quadrangular frame in a plan view, and the engine 2 is mounted on the fixed brackets 49 of the left and right frames 43a and 43b and the base frame 48 via vibration-proof rubber.
【００１１】また、前記後部フレーム４５は左右側フレ
ーム４５ａ・４５ｂの中間立上り部５０間をパイプフレ
ーム５１と門形フレーム５２とで略平行に連結させると
共に、リヤアクスルケース７に左右下端を固設する門形
フレーム５３に左右側フレーム４５ａ・４５ｂの後端を
一体連結させ、左右側フレーム４５ａ・４５ｂの立上り
部５０間に燃料タンク４６を配設するように構成してい
る。The rear frame 45 connects the intermediate rising portions 50 of the left and right frames 45a and 45b substantially in parallel with each other by the pipe frame 51 and the gate frame 52, and has the left and right lower ends fixed to the rear axle case 7. The rear ends of the left and right frames 45a and 45b are integrally connected to the gate frame 53, and the fuel tank 46 is arranged between the rising portions 50 of the left and right frames 45a and 45b.
【００１２】さらに、前記中間フレーム４４は、前部左
右側フレーム４３ａ・４３ｂの後端と後部左右側フレー
ム４５ａ・４５ｂの前端に左右中間フレーム４４の前後
端をボルト５４を介し取外し自在に固定させると共に、
左右中間フレーム４４の下面にボルト５５を介し左右フ
ロントアクスルケース５を取外し自在に固定させ、前記
ミッションケース４に左右フロントアクスルケース５を
接続固定させるように構成している。Further, the intermediate frame 44 is configured such that the front and rear ends of the left and right intermediate frames 44 are detachably fixed to the front ends of the front left and right side frames 43a and 43b and the front ends of the rear left and right side frames 45a and 45b through bolts 54. With
The left and right front axle cases 5 are detachably fixed to the lower surfaces of the left and right intermediate frames 44 via bolts 55, and the left and right front axle cases 5 are connected and fixed to the mission case 4.
【００１３】また、前部の左右側フレーム４３ａ・４３
ｂの断面積を後部の左右側フレーム４５ａ・４５ｂより
大に形成して、重量物のエンジン２を搭載する前部フレ
ーム４３を堅固なものに形成すると共に、前部フレーム
４３に比べ強度を必要としない中間フレーム４４や後部
フレーム４５を軽量に形成して、前後バランスや強度バ
ランスを良好とさせるように構成している。さらに分割
させた前部フレーム４３・中間フレーム４４・後部フレ
ーム４５にエンジン２・フロントアクスルケース５及び
ミッションケース４・リヤアクスルケース７などをそれ
ぞれ分割させた状態で組立て一体化させることによっ
て、組立性やメンテナンス性を向上させることができ
る。The front left and right frames 43a, 43
The cross-sectional area of b is formed to be larger than that of the left and right side frames 45a and 45b in the rear part, so that the front frame 43 for mounting the heavy-duty engine 2 is formed to be solid and requires strength as compared with the front frame 43. The intermediate frame 44 and the rear frame 45 which are not provided are made light in weight, and are configured to have good front-rear balance and strength balance. By further assembling and integrating the front frame 43, the intermediate frame 44, and the rear frame 45 into which the engine 2, the front axle case 5, the transmission case 4, the rear axle case 7 and the like are divided, The maintainability can be improved.
【００１４】そして、前部フレーム４３の前後外側と後
部フレーム４５の前外側にステップフレーム５６・５７
・５８を突設させ、これらフレーム５６・５７・５８の
外側間を前パイプ５９で連結させ、後部フレーム４５の
立上り部５０の上側間にブラケット６０を介し固設する
ステップフレーム６１と、前記フレーム５８の左右外側
とに左右後パイプ６２を連結させ、左右後パイプ６２の
後側間を横フレーム６２ａで連結させ、門形フレーム５
３の上側水平部と横フレーム６２ａとステップフレーム
６１の略中央部を前後方向の２本のフレーム６２ｂで連
結させ、後パイプ６２前側の低位置の水平部に足踏台６
３を着脱自在にボルト止め固定させ、前記門形フレーム
５２とステップフレーム６１とにシートフレーム１２を
介し運転席１３を支持させると共に、各フレーム５６・
５７・５８・６１の上面に車体カバー１１を取外し自在
に固定保持させるように構成している。Step frames 56 and 57 are formed on the front and rear outer sides of the front frame 43 and on the front outer side of the rear frame 45.
A step frame 61 in which 58 are projectingly provided, the outer sides of these frames 56, 57, and 58 are connected by a front pipe 59, and the step frame 61 is fixedly mounted above the rising portion 50 of the rear frame 45 via a bracket 60; The left and right rear pipes 62 are connected to the left and right outer sides of 58, and the rear sides of the left and right rear pipes 62 are connected by a horizontal frame 62a.
The upper horizontal portion of 3, the horizontal frame 62a and the substantially central portion of the step frame 61 are connected by two frames 62b in the front-rear direction, and the footrest 6 is attached to the lower horizontal portion on the front side of the rear pipe 62.
3 is detachably bolted and fixed, and the gate-shaped frame 52 and the step frame 61 support the driver's seat 13 via the seat frame 12, and each frame 56.
The vehicle body cover 11 is detachably fixedly held on the upper surfaces of 57, 58, and 61.
【００１５】図６乃至図１２にも示す如く、前記ミッシ
ョンケース４は前面左側にパワーステアリングケース６
４、右側に油圧式無段変速機構（ＨＳＴ）６５をそれぞ
れ配設させ、無段変速機構６５の変速入力軸６６を車体
前方向に突出させ、エンジン２下側で前後方向のカウン
タ軸６７に入力軸６６を連結させると共に、エンジン出
力軸６８に伝達ベルト６９を介し前記カウンタ軸６７を
連結させて、エンジン出力を無段変速機構６５を介しミ
ッションケース４に伝達するように構成している。As shown in FIGS. 6 to 12, the mission case 4 has a power steering case 6 on the front left side.
4. A hydraulic continuously variable transmission (HST) 65 is arranged on each of the right and left sides, and a shift input shaft 66 of the continuously variable transmission 65 is projected in the front direction of the vehicle body. The input shaft 66 is connected and the counter shaft 67 is connected to the engine output shaft 68 via a transmission belt 69 so that the engine output is transmitted to the transmission case 4 via the continuously variable transmission mechanism 65.
【００１６】また、前記ミッションケース４とリヤアク
スルケース７とは車体の中心ライン上でパイプ製の連結
フレーム７０で一体連結させ、ミッションケース４後方
に後走行出力軸７１及びＰＴＯ出力軸７２を突出させ、
リヤアクスルケース７前方に突出させる入力軸７３に伝
達軸７４を介し前記出力軸７１を連結させ、またリヤア
クスルケース７上部の軸受７５に設ける中介軸７６に自
在継手軸７７を介し前記ＰＴＯ出力軸７２を連結させ、
前記植付ケース２０の入力軸に自在継手軸７８を介し中
介軸７６を連結させるように構成している。Further, the mission case 4 and the rear axle case 7 are integrally connected on the center line of the vehicle body by a connecting frame 70 made of a pipe, and a rear traveling output shaft 71 and a PTO output shaft 72 are projected behind the mission case 4. ,
The output shaft 71 is connected via a transmission shaft 74 to an input shaft 73 projecting forward of the rear axle case 7, and the PTO output shaft 72 is connected to an intermediate shaft 76 provided in a bearing 75 above the rear axle case 7 via a universal joint shaft 77. Connect
The intermediate shaft 76 is connected to the input shaft of the planted case 20 via a universal joint shaft 78.
【００１７】また、前記連結フレーム７０はフロント及
びリヤアクスルケース５・７に接続させ、連結フレーム
７０の後部上面にシリンダ取付座７９を固設して、車体
の中心ライン上で昇降シリンダ２７の基端を取付座７９
に支持させるように構成している。なお前記連結フレー
ム７０内を昇降シリンダ２７などの油圧の油タンクに用
いても良く、またフロント及びアクスルケース５・７に
連結フレーム７０を連通接続させて、これらケース５・
７や連結フレーム７０内を油タンクに用いても良い。The connecting frame 70 is connected to the front and rear axle cases 5 and 7, and a cylinder mounting seat 79 is fixedly mounted on the rear upper surface of the connecting frame 70 so that the base end of the lifting cylinder 27 is located on the center line of the vehicle body. Mounting seat 79
It is configured to be supported by. The inside of the connecting frame 70 may be used as a hydraulic oil tank such as the lifting cylinder 27, or the connecting frame 70 may be connected to the front and axle cases 5 and 7 to connect these cases 5 and
7 and the inside of the connecting frame 70 may be used as an oil tank.
【００１８】図６、図１３にも示す如く、前記リヤアク
スルケース７は平面視で門形に形成し、ケース７両側の
左右ギヤケース部８０外面にロープフック８１を固設す
ると共に、左右ギヤケース部８０間に形成される門形空
間部８２に前記ロワーリンク２５を配設させるもので、
アクスルケース７の中央上面に固定手段であるボルト８
３を介しリンク軸受部材８４を固定させ、リンク軸受部
材８４に前支点軸８５を介しロワーリンク２５の前端側
を連結させ、昇降シリンダ２７のピストンロッド８６先
端をロワーリンク２５に固定する枢着板２５ａに連結さ
せ、前記ヒッチブラケット２３に後支点軸８８を介しロ
ワーリンク２５の後端側を連結させ、門形フレーム５３
とヒッチブラケット２３間を連結するトップリンク２４
とによって植付部１５の昇降を行うように構成してい
る。As shown in FIGS. 6 and 13, the rear axle case 7 is formed in a gate shape in a plan view, the rope hooks 81 are fixedly provided on the outer surfaces of the left and right gear case portions 80 on both sides of the case 7, and the left and right gear case portions 80 are also fixed. The lower link 25 is arranged in the gate-shaped space portion 82 formed between the
A bolt 8 as a fixing means is provided on the central upper surface of the axle case 7.
3, a link bearing member 84 is fixed, the front end side of the lower link 25 is connected to the link bearing member 84 via a front fulcrum shaft 85, and the tip of the piston rod 86 of the lifting cylinder 27 is fixed to the lower link 25. 25a, the rear end side of the lower link 25 is connected to the hitch bracket 23 via the rear fulcrum shaft 88, and the gate frame 53
Top link 24 that connects between the hitch bracket 23 and the
The planting section 15 is moved up and down by means of.
【００１９】前記ロワーリンク２５は４角パイプで形成
し、前後支点軸８５・８８が嵌合する支点筒軸８９・９
０をロワーリンク２５の前後端側に設けて、部品の軽量
化と、ローリングなどに対する剛性向上を図るように構
成している。The lower link 25 is formed of a quadrangular pipe, and a fulcrum cylinder shaft 89.9 to which the front and rear fulcrum shafts 85 and 88 are fitted.
Zeros are provided on the front and rear ends of the lower link 25 to reduce the weight of parts and improve the rigidity against rolling and the like.
【００２０】図１４乃至図１９にも示す如く、前記燃料
タンク４６は運転席１３下方で後部左右側フレーム４５
ａ・４５ｂの立上り部５０間の余剰スペースに配設させ
るもので、前記パイプフレーム５１の取付部材９１にボ
ルト９２を介し取外し自在にタンク４６前端を固定させ
ると共に、前記ステップフレーム６１の下側にボルト９
３を介し固設するタンク取付板９４に、タンク４６中間
の左右突出縁４６ａをボルト９５を介し固定させて、車
体カバー１１後側の立上り部１１ａ内の車体中心ライン
上で運転席１３と連結フレーム７０と左右側フレーム４
５ａ・４５ｂとで囲まれたデッドスペースにバランス良
好にタンク４６を配設するように構成している。As shown in FIGS. 14 to 19, the fuel tank 46 is located below the driver's seat 13 and on the rear left and right frames 45.
It is arranged in an extra space between the rising portions 50 of the a and 45b. The front end of the tank 46 is detachably fixed to the mounting member 91 of the pipe frame 51 through the bolt 92, and the lower side of the step frame 61 is provided. Bolt 9
The left and right projecting edges 46a in the middle of the tank 46 are fixed to the tank mounting plate 94 that is fixed through the bolts 3 via bolts 95, and connected to the driver's seat 13 on the vehicle body center line in the rising portion 11a on the rear side of the vehicle body cover 11. Frame 70 and left and right frames 4
The tank 46 is arranged in good balance in a dead space surrounded by 5a and 45b.
【００２１】図６、図８に示す如く、前記パワーステア
リングケース６４下側のステアリングアーム９８に第１
及び第２ロッド９９・１００を介しリヤアクスルケース
７内の左右サイドクラッチを操作するカム部材１０１を
連結させるもので、連結フレーム７０を上下方向に貫通
させる縦軸１０２の上下突出端に上下揺動アーム１０３
・１０４を固定させ、連結フレーム７０より右側位置で
ステアリングアーム９８と下揺動アーム１０４間を第１
ロッド９９で、また上揺動アーム１０３とカム部材１０
１間を第２ロッド１００で連結させて、操向ハンドル１
４操作に連動させた左右サイドクラッチの入切動作を行
わせるように構成している。As shown in FIGS. 6 and 8, the first steering arm 98 is provided below the power steering case 64.
And a cam member 101 for operating the left and right side clutches in the rear axle case 7 via the second rods 99 and 100. The vertical swing arm is provided at the vertical protruding end of the vertical axis 102 that vertically penetrates the connecting frame 70. 103
104 is fixed, and the first position is provided between the steering arm 98 and the lower swing arm 104 at a position on the right side of the connecting frame 70.
With the rod 99, the upper swing arm 103 and the cam member 10
The steering rod 1 is formed by connecting the two with the second rod 100.
The left and right side clutches are engaged and disengaged in conjunction with the four operations.
【００２２】図１４乃至図１９に示す如く、燃料タンク
４６内の燃料をエンジン２のキャブレター１０５に供給
する供給ライン１０６と、供給ライン１０６中の燃料を
タンク４６に戻すタンク戻りライン１０７とを備えると
共に、前記供給ライン１０６に燃料コック１０８・燃料
フィルタ１０９・燃料ポンプ１１０など燃料供給装置１
１１を介設させるもので、足踏台６３内側位置の左側フ
レーム４５ａ外側の固定台１１２にボルト１１３を介し
取外し自在に取付板１１４を固定させ、前記燃料コック
１０８・燃料フィルタ１０９・燃料ポンプ１１０を取付
板１１４に一体的に固定取付けして前後輪６・８間に配
設するように構成している。As shown in FIGS. 14 to 19, a supply line 106 for supplying the fuel in the fuel tank 46 to the carburetor 105 of the engine 2 and a tank return line 107 for returning the fuel in the supply line 106 to the tank 46 are provided. In addition, the fuel supply device 1 such as the fuel cock 108, the fuel filter 109, and the fuel pump 110 is connected to the supply line 106.
11, the mounting plate 114 is detachably fixed to the fixed base 112 on the outer side of the left frame 45a at the inner position of the footstep 63 via the bolt 113, and the fuel cock 108, the fuel filter 109, and the fuel pump 110 are attached. It is configured so as to be integrally fixedly mounted on the mounting plate 114 and disposed between the front and rear wheels 6 and 8.
【００２３】また、前記燃料供給装置１１１は側面視で
足踏台６３とラップさせ、燃料供給装置１１１の左外側
を覆うように設けると共に、足踏台６３内側に形成され
る開口６３ａを通しての機体外側よりの燃料供給装置１
１１の保守点検など容易に可能とさせて、メンテナンス
性を向上させるように構成している。Further, the fuel supply device 111 is provided so as to wrap with the footrest 63 in a side view so as to cover the left outer side of the fuel supply device 111, and from the outside of the body through an opening 63a formed inside the footrest 63. Fuel supply device 1
11, the maintenance and inspection can be easily performed, and the maintainability is improved.
【００２４】そして、燃料タンク４６底部の供給口１１
５とコック１０８間を第１燃料ホース１０６ａで、コッ
ク１０８とフィルタ１０９間を第２燃料ホース１０６ｂ
で、フィルタ１０９とポンプ１１０間を第３燃料ホース
１０６ｃで、ポンプ１１０とキャブレター１０５間を第
４燃料ホース１０６ｄでそれぞれ連結させると共に、第
４燃料ホース１０６ｄの中途部とタンク４６とを戻りラ
イン１０７で連結させ、第４燃料ホース１０６ｄと戻り
ライン１０７とを左側フレーム４３ａの内側面に沿わせ
て前後方向に配置させるように構成している。The supply port 11 at the bottom of the fuel tank 46
5 between the cock 108 and the cock 108 is the first fuel hose 106a, and between the cock 108 and the filter 109 is the second fuel hose 106b.
Then, the filter 109 and the pump 110 are connected by the third fuel hose 106c, the pump 110 and the carburetor 105 are connected by the fourth fuel hose 106d, and the middle portion of the fourth fuel hose 106d and the tank 46 are connected to the return line 107. The fourth fuel hose 106d and the return line 107 are arranged in the front-rear direction along the inner surface of the left frame 43a.
【００２５】上記から明らかなように、機体前部に配置
するエンジン２と機体後部に配置する燃料タンク４６を
接続する燃料供給ライン１０６に燃料供給装置１１１を
介設させた田植機において、燃料供給装置１１１を前後
車輪である前後輪６・８間に配置させたことによって、
エンジン２から燃料供給装置１１１を離してヒートバラ
ンスを良好とさせて、ベーパーロック現象などの悪影響
を防止することができる。As is apparent from the above, in the rice transplanter in which the fuel supply device 111 is provided in the fuel supply line 106 connecting the engine 2 arranged in the front part of the machine body and the fuel tank 46 arranged in the rear part of the machine body, By disposing the device 111 between the front and rear wheels 6 and 8 which are the front and rear wheels,
The fuel supply device 111 can be separated from the engine 2 to improve the heat balance and prevent adverse effects such as the vapor lock phenomenon.
【００２６】また、車体のメインフレームである車体フ
レーム３（後部フレーム４５）の外側方に燃料供給装置
１１１を配置させたことによって、機体外側からの燃料
供給装置１１１の保守点検など容易に可能とさせて、メ
ンテナンス性を容易に向上させることができる。Further, by disposing the fuel supply device 111 on the outer side of the vehicle body frame 3 (rear frame 45) which is the main frame of the vehicle body, maintenance and inspection of the fuel supply device 111 from the outside of the body can be easily performed. Therefore, the maintainability can be easily improved.
【００２７】さらに、車体フレーム３の外側方に連結さ
せる補助ステップフレームである後パイプ６２の内方に
燃料供給装置１１１を配置させたことによって、燃料供
給装置１１１の外側を後パイプ６２で保護して、燃料供
給装置１１１の安定保持を確実に図って、信頼性を向上
させることができる。Further, by disposing the fuel supply device 111 inside the rear pipe 62 which is an auxiliary step frame connected to the outside of the vehicle body frame 3, the outside of the fuel supply device 111 is protected by the rear pipe 62. Thus, the fuel supply device 111 can be reliably held in a stable manner, and the reliability can be improved.
【００２８】またさらに、左側後パイプ６２に設ける足
踏台６３と燃料供給装置１１１を側面視でラップさせた
ことによって、燃料供給装置１１１の外側を足踏台６３
で保護すると共に、足踏台６３内側に形成される開口６
３ａを通して、燃料供給装置１１１の保守点検など容易
に可能とさせてメンテナンス性を向上させることができ
る。Furthermore, by wrapping the footrest 63 provided on the left rear pipe 62 and the fuel supply device 111 in a side view, the outside of the fuel supply device 111 is stepped on the footstep 63.
Opening 6 formed inside the footstep 63 while being protected by
Through 3a, maintenance and inspection of the fuel supply device 111 can be easily performed and the maintainability can be improved.
【００２９】図５、図１１、図１５、図２０、図２２に
示す如く、前記ミッションケース４は機体中心ライン
（Ｃ）に対し左右一側に偏位させて配置させ、偏位させ
た方向と反対側の空きスペースに植付部１５を昇降制御
する重量物のコントロールバルブ１１７を配設するもの
で、左右側フレーム４３ａ・４５ａ、４３ｂ・４５ｂ間
の右寄りにミッションケース４を配設すると共に、ミッ
ションケース４と左側フレーム４３ａ・４５ａ間にコン
トロールバルブ１１７を配置させている。また前記コン
トロールバルブ１１７の底面に門形状のブラケット１１
８を取外し自在にボルト止め固定させると共に、ミッシ
ョンケース４の左外側に突出させるフロントアクスルケ
ース５の上部にボルト１１９を介し取外し自在にブラケ
ット１１８を固定させて、フロントアクスルケース５の
上部に着脱自在に重量物であるコントロールバルブ１１
７を固定させるように構成している。As shown in FIG. 5, FIG. 11, FIG. 15, FIG. 20, and FIG. 22, the mission case 4 is displaced to the left and right with respect to the center line (C) of the fuselage, and is arranged in the displaced direction. A heavy-weight control valve 117 for controlling the raising and lowering of the planting portion 15 is arranged in an empty space on the opposite side to the transmission case 4 while the right and left side frames 43a, 45a, 43b, 45b are arranged on the right side. A control valve 117 is arranged between the mission case 4 and the left frame 43a / 45a. Further, a gate-shaped bracket 11 is provided on the bottom surface of the control valve 117.
8 is detachably bolted and fixed, and a bracket 118 is detachably fixed to the upper part of the front axle case 5 protruding to the left outside of the mission case 4 via a bolt 119, and is detachably attached to the upper part of the front axle case 5. Control valve 11 which is heavy
7 is fixed.
【００３０】そして、ミッションケース４を平面視で機
体中心に対し一側方に偏位させて配置させると共に、ミ
ッションケース４の偏位させた反対側に油圧機器である
コントロールバルブ１１７を配置させることによって、
機体の前後バランスを良好とさせて走行性能を安定維持
させると共に、油圧供給部（油圧タンク）となるミッシ
ョンケース４とコントロールバルブ１１７との配管長さ
を短かしてこの油圧構造のコンパクト化を図り、また、
フロントアクスルケース５の上部に着脱自在にコントロ
ールバルブ１１７を固定させることによって、機体中央
部に配置される他の装置類との干渉を防止して容易に且
つ安定確実にコントロールバルブ１１７を装備させるこ
とができる。The mission case 4 is arranged so as to be displaced to one side with respect to the center of the machine body in a plan view, and the control valve 117, which is a hydraulic device, is arranged on the opposite side of the mission case 4 which is displaced. By
A good balance between the front and rear of the machine body to maintain stable running performance, and shorten the piping length between the mission case 4 that serves as a hydraulic pressure supply unit (hydraulic tank) and the control valve 117 to make the hydraulic structure compact. Plan again
The control valve 117 is detachably fixed to the upper portion of the front axle case 5 to prevent interference with other devices arranged in the center of the machine body and to easily and stably equip the control valve 117. You can
【００３１】図２９にも示す如く、エンジン２によって
駆動する油圧ポンプ１２０の供給油圧回路１２１を、フ
ローコントロールバルブ１２２によって高圧油路１２３
と低圧油路１２４に分岐して、操向ハンドル１４によっ
て操向シリンダ１２５の操向バルブ１２６を切換えるパ
ワーステアリングケース６４と、上昇及び下降ソレノイ
ド１２７・１２８によって電磁弁（比例弁）であるコン
トロールバルブ１１７を操作し昇降シリンダ２７を駆動
する昇降バルブユニット１２９とを高圧油路１２３に設
けると共に、植付部１５の左右傾斜姿勢を制御する水平
シリンダ１３０の水平操作用ソレノイドバルブ１３１を
有する水平バルブユニット１３２を低圧油路１２４に設
けて、植付部１５の昇降制御を前記バルブ１１７の上昇
及び下降ソレノイド１２７・１２８の励磁操作によって
行うように構成している。As shown in FIG. 29, the supply hydraulic circuit 121 of the hydraulic pump 120 driven by the engine 2 is connected to the high pressure oil passage 123 by the flow control valve 122.
And a low pressure oil passage 124, and a power steering case 64 that switches the steering valve 126 of the steering cylinder 125 by the steering handle 14, and a control valve that is a solenoid valve (proportional valve) by the up and down solenoids 127 and 128. An elevation valve unit 129 that operates 117 to drive the elevation cylinder 27 is provided in the high-pressure oil passage 123, and a horizontal valve unit that has a horizontal operation solenoid valve 131 of a horizontal cylinder 130 that controls the laterally inclined posture of the planting portion 15. 132 is provided in the low-pressure oil passage 124, and the raising / lowering control of the planting portion 15 is configured to be performed by the raising operation of the valve 117 and the exciting operation of the lowering solenoids 127 and 128.
【００３２】また、前記コントロールバルブ１１７と昇
降シリンダ２７とを接続するシリンダ油路１３３にスト
ップバルブ１３４を介設し、該ストップバルブ１３４の
ストップレバー３４の閉操作によって植付部１５を任意
高さ位置に停止させると共に、前記昇降シリンダ２８の
上昇シリンダ室２７ａにアキュムレータ１３５を接続さ
せて、上昇シリンダ室２７ａの急激な圧力変動を吸収し
て植付部１５をスムーズに昇降させるように構成してい
る。A stop valve 134 is provided in a cylinder oil passage 133 connecting the control valve 117 and the elevating cylinder 27, and the planting portion 15 is moved to an arbitrary height by closing the stop lever 34 of the stop valve 134. While being stopped at the position, an accumulator 135 is connected to the ascending cylinder chamber 27a of the ascending / descending cylinder 28 so as to absorb a sudden pressure change in the ascending cylinder chamber 27a and smoothly ascend / descend the planting part 15. There is.
【００３３】図３０に示す如く、前記油圧式無段変速機
構６５は可変容量形油圧ポンプ１３６及び定容量油圧モ
ータ１３７と無段変速用チャージポンプ１３８とブレー
キペダル３０操作などで無段変速油圧回路の高圧側を開
いて低圧とさせる圧抜き形逆止弁１３９とを設けて、無
段変速機構６５で無段変速後のエンジン出力をミッショ
ンケース４に入力させるように構成している。As shown in FIG. 30, the hydraulic continuously variable transmission mechanism 65 comprises a variable displacement hydraulic pump 136, a constant displacement hydraulic motor 137, a continuously variable charge pump 138, a brake pedal 30, and the like. And a pressure relief type check valve 139 for opening the high pressure side to a low pressure, so that the engine output after the continuously variable transmission by the continuously variable transmission mechanism 65 is input to the mission case 4.
【００３４】そして、前記油圧ポンプ１２０及びチャー
ジポンプ１３８とをミッションケース４後側に配設さ
せ、ポンプ１２０・１３８上方にフローコントロールバ
ルブ１２２を配設させ、チャージポンプ３８と無段変速
機構６５左外側の油入口１４０間を接続する管路を金属
製の配管である鋼管１４１で形成し、エンジン２後側の
冷却風を取入れる冷却ファン１４２の取入口１４３付近
に鋼管１４１を通すことによって、極めて経済的な手段
によって油圧無段変速機６５など油圧駆動部に供給する
油の冷却効果を高めて、油圧駆動部の駆動効率を容易に
向上させることができる。The hydraulic pump 120 and the charge pump 138 are arranged on the rear side of the mission case 4, the flow control valve 122 is arranged above the pumps 120 and 138, and the charge pump 38 and the continuously variable transmission 65 left. By forming a pipe line connecting the outer oil inlets 140 with a steel pipe 141 that is a metal pipe, and passing the steel pipe 141 near the inlet 143 of the cooling fan 142 that takes in cooling air on the rear side of the engine 2, It is possible to enhance the cooling effect of the oil supplied to the hydraulic drive unit such as the hydraulic continuously variable transmission 65 by an extremely economical means, and easily improve the drive efficiency of the hydraulic drive unit.
【００３５】また、前記フローコントロールバルブ１２
２と水平バルブユニット１３２とを接続する低圧油路１
２４及び水平バルブユニット１３２とミッションケース
４間を接続する戻り油路１４４の一部を鋼管（金属製）
１４５で形成するもので、図１１及び図１６に示す如
く、燃料タンク４６の左右両側位置に配置させる配管で
ある油路１２４・１４４部分を鋼管１４５で形成するこ
とによって、鋼管１４５内の油の冷却効果を高めてロー
リング制御機構である水平シリンダ１３０に供給される
制御作動油の温度上昇を防止して、ローリング制御の精
度を良好とさせると共に、機体後方の水平シリンダ１３
０までの比較的長尺な配管である油路１２４・１４４が
損傷するなどの不都合を防止して配管の耐久性を向上さ
せることができる。Further, the flow control valve 12
Low pressure oil passage 1 connecting 2 and the horizontal valve unit 132
24, a part of the return oil passage 144 connecting between the horizontal valve unit 132 and the mission case 4 is a steel pipe (made of metal)
As shown in FIGS. 11 and 16, the oil passages 124 and 144, which are pipes to be arranged at the left and right sides of the fuel tank 46, are formed of the steel pipe 145 so that the oil in the steel pipe 145 is formed. The cooling effect is enhanced to prevent the temperature rise of the control hydraulic oil supplied to the horizontal cylinder 130, which is the rolling control mechanism, to improve the accuracy of the rolling control, and the horizontal cylinder 13 at the rear of the machine body.
It is possible to prevent inconveniences such as damage to the oil passages 124 and 144, which are relatively long pipes up to 0, and improve the durability of the pipes.
【００３６】図２５、図２６に示す如く、前記運転席１
３を支持する門形フレーム５２の左側に感度調節及びス
トップレバー３３・３４を、右側に３本のユニットクラ
ッチレバー３５をそれぞれ配設すると共に、フレーム５
２の中央部に固定する取付台１４６に水平シリンダ１３
０など各制御部を作動するコントローラ１４７・リレー
１４８・植付作業速度感応型植深さ自動調節機構用サー
ジアブソーバ１４９など各種電装品１５０を配設させ、
前記ストップレバー３４を上方に突出させるストップバ
ルブ１３４の下側にアキュムレータ１３５を一体的に設
けている。As shown in FIGS. 25 and 26, the driver's seat 1
The sensitivity adjustment and stop levers 33 and 34 are arranged on the left side of the gate-shaped frame 52 which supports the 3 and the three unit clutch levers 35 are arranged on the right side thereof.
The horizontal cylinder 13 is attached to the mounting base 146 fixed to the center of
Various electrical components 150 such as a controller 147 which operates each control unit such as 0, a relay 148, a surge absorber 149 for a planting work speed sensitive type automatic planting depth adjusting mechanism,
An accumulator 135 is integrally provided below the stop valve 134 that projects the stop lever 34 upward.
【００３７】また、図５、図１５、図２８に示す如く、
エンジン２より右側の前パイプ５９右外側にバッテリ台
１５１を固設させ、該バッテリ台１５１に載置するバッ
テリ１５２からの電気配線である電気コード１５３を前
記電装品１５０や水平操作用ソレノイドバルブ１３１な
どに右側フレーム４５ｂの内側に沿って後方に延出させ
て連結させ、燃料の供給ライン１０６及びタンク戻りラ
イン１０７の燃料配管や、昇降シリンダ２７のシリンダ
油路１３３及びタンク戻り油路１５４など油圧配管を車
体を左側に配置させるのに対し電気コード１５３を車体
右側に配置させるように構成している。As shown in FIGS. 5, 15, and 28,
A battery pedestal 151 is fixed to the right outside of the front pipe 59 on the right side of the engine 2, and an electric cord 153, which is an electric wiring from the battery 152 mounted on the battery pedestal 151, is connected to the electrical component 150 and the horizontal operation solenoid valve 131. To the rear side along the inner side of the right frame 45b and connected to the fuel supply line 106 and the fuel tank return line 107, the cylinder oil passage 133 of the lifting cylinder 27, the tank return oil passage 154, and the like. The electric cord 153 is arranged on the right side of the vehicle while the piping is arranged on the left side of the vehicle.
【００３８】このように、シリンダ油路１３３及びタン
ク戻り油路１５４など油圧配管や、燃料の供給ライン１
０６及びタンク戻りライン１０７の燃料配管や、電気コ
ード１５３を平面視機体中心に対し左右に振り分け配置
させたことによって、各油路１３３・１５４、燃料ライ
ン１０６・１０７、電気コード１５３の３者の組立性を
向上させ、組立時間を短縮化させて、組立精度と作業能
率の向上化を図ることができる。As described above, the hydraulic lines such as the cylinder oil passage 133 and the tank return oil passage 154, and the fuel supply line 1
By arranging the fuel pipes of the 06 and the tank return line 107 and the electric cord 153 so as to be distributed to the left and right with respect to the center of the plane view machine body, the oil passages 133 and 154, the fuel lines 106 and 107, and the electric cord 153 can be connected to each other. It is possible to improve the assembling property, shorten the assembling time, and improve the assembling accuracy and work efficiency.
【００３９】また、機体中心である中心ライン（Ｃ）に
対し一側方に油路１３３・１５４及び燃料ライン１０６
・１０７を、他側方に電気コード１５３を配置させるこ
とによって、油圧及び燃料配管系に油や燃料洩れなどが
発生した場合や、電気配線系にトラブルが発生した場合
にも相互に悪影響を与えることを防止して、作業の信頼
性を向上させることができる。Further, the oil passages 133 and 154 and the fuel line 106 are provided on one side with respect to the center line (C) which is the center of the airframe.
-By arranging 107 with the electric cord 153 on the other side, even if oil or fuel leaks occur in the hydraulic and fuel piping systems, or if a trouble occurs in the electric wiring system, they adversely affect each other. This can be prevented and the work reliability can be improved.
【００４０】図１８にも示す如く、前記門形フレーム５
２の取付台１４６にボルト１５５を介し取外し自在に固
定するコントローラ１４７など電装品１５０は運転席１
３下位置でステップである車体カバー１１の立上り部１
１ａ内に配置させて、前後輪６・８より電装品１５０を
離して電装品１５０に泥水がかかることを最少に防止す
ると共に、運転席１３下方のデッドスペースを有効利用
してコンパクトに配置して、雨或いは洗車時に電装品１
５０に水がかかるのを防いで性能の安定保持を図るよう
に構成している。As shown in FIG. 18, the portal frame 5 is also provided.
The electric component 150 such as the controller 147 that is detachably fixed to the second mounting base 146 via the bolt 155 is the driver's seat 1
3 The rising portion 1 of the vehicle body cover 11 which is a step at the lower position
1a to prevent the electrical component 150 from being separated from the front and rear wheels 6 and 8 to prevent muddy water from splashing on the electrical component 150, and to effectively utilize the dead space below the driver's seat 13 for compact placement. Electrical equipment 1 during rain or car wash
It is configured to prevent water from splashing on 50 and maintain stable performance.
【００４１】また、運転席１３を支持する支持部材であ
る門形フレーム５２に電装品１５０を取付けて、このフ
レーム５２を電装品１５０の取付部材に兼用させて、構
成のコンパクト化と製造コストの低減化を図ると共に、
電装品１５０配設位置近傍の車体カバー１１に開口部１
５６を設けて、前記燃料タンク４６の給油口１５７や門
形フレーム５２及びステップフレーム６１にシートフレ
ーム１２を支持させる前後ブラケット１５８・１５９を
開口部１５６に臨ませ、その都度車体カバー１１を取外
すなどの手間の煩わしさなく、電装品１５０の保守点検
を容易に可能とさせてメンテナンス性を向上させるよう
に構成している。Further, the electrical component 150 is attached to the gate-shaped frame 52, which is a support member for supporting the driver's seat 13, and the frame 52 is also used as a mounting member for the electrical component 150, thereby making the configuration compact and reducing the manufacturing cost. While aiming for reduction,
The opening 1 is formed in the body cover 11 near the position where the electrical component 150 is provided.
56, front and rear brackets 158 and 159 for supporting the seat frame 12 on the fuel filler port 157 of the fuel tank 46, the gate-shaped frame 52 and the step frame 61 are exposed to the opening 156, and the vehicle body cover 11 is removed each time. It is configured so that the maintenance and inspection of the electrical component 150 can be easily performed and the maintainability is improved without the troublesome work.
【００４２】さらに、前記開口部１５６を蓋部材１６０
で閉塞可能に設けるもので、蓋部材１６０をボルト１６
１で車体カバー１１に取付けて、開口部１５６を略密閉
状態とするときには、雨や洗車時に電装品１５０に水が
かかるのを確実に防止して、電装品１５０の性能の安定
保持と信頼性を向上させることを可能とさせるものであ
る。Further, the opening 156 is covered with the lid member 160.
The cover member 160 is provided with a bolt 16
When it is attached to the vehicle body cover 11 with 1 and the opening 156 is in a substantially sealed state, it is possible to reliably prevent water from splashing on the electrical component 150 during rain or car wash, and to maintain stable performance and reliability of the electrical component 150. It is possible to improve.
【００４３】なお、図１６、図２２中１６１はミッショ
ンケース４の作動油をフロントアクスルケース５のサク
ション口１６２を介し油圧及びチャージポンプ１２０・
１３８に送給する油圧サクション管、１６３はフローコ
ントロールバルブ１２２からの高圧作動油をパワーステ
アリングケース６４に送給する油圧送り管、１６４はパ
ワーステアリングケース６４からの作動油をコントロー
ルバルブ１１７に送給する植付昇降用の油圧送り管、１
６５はコントロールバルブ１１７からの作動油をミッシ
ョンケース４に戻す油圧戻り管である。In FIG. 16 and FIG. 22, reference numeral 161 denotes hydraulic oil for the transmission case 4 via the suction port 162 of the front axle case 5 and the charge pump 120.
163 is a hydraulic suction pipe for feeding 138, 163 is a hydraulic feed pipe for feeding high pressure hydraulic oil from the flow control valve 122 to the power steering case 64, and 164 is feeding hydraulic oil from the power steering case 64 to the control valve 117. Hydraulic feed pipe for raising and lowering with plant, 1
Reference numeral 65 is a hydraulic return pipe for returning the hydraulic oil from the control valve 117 to the mission case 4.
【００４４】[0044]
【発明の効果】以上実施例から明らかなように本発明
は、油圧で駆動する油圧駆動部６５を備えた移動農機に
おいて、油圧駆動部６５に接続させる油圧配管１４１を
金属製に形成すると共に、エンジン冷却風取入口１４３
近傍に金属製油圧配管１４１を配置させたものであるか
ら、極めて経済的な手段によって油圧駆動部６５に供給
する油の冷却効果を高めて、油圧駆動部６５の駆動効率
を容易に向上させることができるものである。As is apparent from the above embodiments, the present invention is a mobile agricultural machine equipped with a hydraulic drive unit 65 that is hydraulically driven, in which the hydraulic pipe 141 connected to the hydraulic drive unit 65 is made of metal and Engine cooling air intake 143
Since the metal hydraulic pipe 141 is arranged in the vicinity, it is possible to enhance the cooling effect of the oil supplied to the hydraulic drive unit 65 by an extremely economical means and easily improve the drive efficiency of the hydraulic drive unit 65. Is something that can be done.
【００４５】また、作業部１５を水平に維持させるロー
リング制御機構１３０を備えると共に、ローリング制御
機構１３０に接続させる配管１２４・１４４の少なくと
も一部を金属製管１４５に形成したものであるから、ロ
ーリング制御機構１３０に供給される制御作動油の温度
上昇を防止して、ローリング制御の精度を良好とさせる
と共に、機体後方のローリング制御機構１３０までの比
較的長尺な配管１２４・１４４が損傷するなどの不都合
を防止して配管１２４・１４４の耐久性を向上させるこ
とができるものである。Further, since the rolling control mechanism 130 for keeping the working section 15 horizontal is provided and at least a part of the pipes 124, 144 connected to the rolling control mechanism 130 is formed in the metal pipe 145, the rolling motion is prevented. The temperature of the control hydraulic oil supplied to the control mechanism 130 is prevented from increasing to improve the accuracy of rolling control, and the relatively long pipes 124, 144 up to the rolling control mechanism 130 at the rear of the machine are damaged. It is possible to prevent the inconvenience and improve the durability of the pipes 124 and 144.
【図１】田植機の全体側面図。FIG. 1 is an overall side view of a rice transplanter.
【図２】田植機の全体平面図。FIG. 2 is an overall plan view of the rice transplanter.
【図３】走行車体の側面図。FIG. 3 is a side view of a traveling vehicle body.
【図４】走行車体の平面図。FIG. 4 is a plan view of a traveling vehicle body.
【図５】車体の平面説明図。FIG. 5 is an explanatory plan view of the vehicle body.
【図６】駆動部の側面説明図。FIG. 6 is a side view illustrating a drive unit.
【図７】駆動部の平面説明図。FIG. 7 is an explanatory plan view of a drive unit.
【図８】サイドクラッチ操作系の平面説明図。FIG. 8 is an explanatory plan view of a side clutch operation system.
【図９】車体の斜視説明図。FIG. 9 is a perspective explanatory view of a vehicle body.
【図１０】車体の斜視説明図。FIG. 10 is an explanatory perspective view of a vehicle body.
【図１１】車体の斜視説明図。FIG. 11 is an explanatory perspective view of a vehicle body.
【図１２】駆動部の斜視説明図。FIG. 12 is a perspective explanatory view of a drive unit.
【図１３】昇降リンク部の斜視説明図。FIG. 13 is a perspective explanatory view of a lifting link unit.
【図１４】燃料タンク部の側面図。FIG. 14 is a side view of a fuel tank section.
【図１５】配線説明図。FIG. 15 is a wiring explanatory diagram.
【図１６】燃料供給部の平面説明図。FIG. 16 is an explanatory plan view of a fuel supply unit.
【図１７】燃料供給部の側面説明図。FIG. 17 is a side view illustrating a fuel supply unit.
【図１８】車体カバー開口部の説明図。FIG. 18 is an explanatory diagram of a vehicle body cover opening.
【図１９】タンク部の平面説明図。FIG. 19 is a plan view of the tank portion.
【図２０】ミッションケース部の斜視説明図。FIG. 20 is an explanatory perspective view of a mission case portion.
【図２１】昇降リンク機構部の斜視説明図。FIG. 21 is a perspective explanatory view of a lifting link mechanism portion.
【図２２】ミッションケース部の斜視説明図。FIG. 22 is a perspective explanatory view of a mission case portion.
【図２３】車体カバーの斜視説明図。FIG. 23 is a perspective explanatory view of a vehicle body cover.
【図２４】車体カバーの開口部の説明図。FIG. 24 is an explanatory diagram of an opening of a vehicle body cover.
【図２５】電装品取付部の説明図。FIG. 25 is an explanatory diagram of an electric component mounting portion.
【図２６】電装品取付部の説明図。FIG. 26 is an explanatory diagram of an electric component mounting portion.
【図２７】燃料供給装置の取付説明図。FIG. 27 is an explanatory view of mounting the fuel supply device.
【図２８】バッテリの取付説明図。FIG. 28 is an explanatory diagram of battery mounting.
【図２９】油圧回路図。FIG. 29 is a hydraulic circuit diagram.
【図３０】無段変速機の油圧回路図。FIG. 30 is a hydraulic circuit diagram of a continuously variable transmission.
１５ 植付部 ６５ 油圧無段変速機（油圧駆動部） １２４・１４４ 油路（配管） １３０ 水平シリンダ（ローリング制御機構） １４１ 鋼管（金属製配管） １４３ 取入口 １４５ 鋼管 15 Planting Department 65 Hydraulic continuously variable transmission (hydraulic drive unit) 124/144 oil passage (piping) 130 horizontal cylinder (rolling control mechanism) 141 steel pipe (metal pipe) 143 intake 145 steel pipe
───────────────────────────────────────────────────── フロントページの続き (72)発明者 松岡 秀樹 大阪市北区茶屋町１番32号 ヤンマー農機 株式会社内 Ｆターム(参考） 2B304 KA07 LA02 LA09 LB05 LB16 MA08 PD09 PD40 3D042 AA07 AB12 BA04 BA07 BA08 BA12 BC02 BC03 BC09 BC13 BC15 BC17 BD09 3H082 AA06 CC02 DB09 DB37 EE17 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Hideki Matsuoka Yanmar Agricultural Machinery 1-32 Chayamachi, Kita-ku, Osaka Within the corporation F term (reference) 2B304 KA07 LA02 LA09 LB05 LB16 MA08 PD09 PD40 3D042 AA07 AB12 BA04 BA07 BA08 BA12 BC02 BC03 BC09 BC13 BC15 BC17 BD09 3H082 AA06 CC02 DB09 DB37 EE17
Claims (2)
農機において、油圧駆動部に接続させる油圧配管を金属
製に形成すると共に、エンジン冷却風取入口近傍に金属
製油圧配管を配置させたことを特徴とする移動農機。1. In a mobile agricultural machine having a hydraulic drive unit driven by hydraulic pressure, a hydraulic pipe connected to the hydraulic drive unit is made of metal, and a metal hydraulic pipe is arranged near an engine cooling air intake port. A mobile agricultural machine characterized by that.
御機構を備えると共に、ローリング制御機構に接続させ
る配管の少なくとも一部を金属製管に形成したことを特
徴とする移動農機。2. A mobile agricultural machine comprising a rolling control mechanism for keeping a working part horizontal and at least a part of a pipe connected to the rolling control mechanism is formed of a metal pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001271914A JP5008109B2 (en) | 2001-09-07 | 2001-09-07 | Rice transplanter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001271914A JP5008109B2 (en) | 2001-09-07 | 2001-09-07 | Rice transplanter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2003079203A true JP2003079203A (en) | 2003-03-18 |
| JP5008109B2 JP5008109B2 (en) | 2012-08-22 |
Family
ID=19097359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001271914A Expired - Lifetime JP5008109B2 (en) | 2001-09-07 | 2001-09-07 | Rice transplanter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP5008109B2 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004113144A1 (en) * | 2003-06-17 | 2004-12-29 | Yanmar Co., Ltd. | Tractor |
| JP2006097889A (en) * | 2004-09-02 | 2006-04-13 | Kanzaki Kokyukoki Mfg Co Ltd | Hydrostatic transaxle and hydraulically driven vehicle |
| JP2011019533A (en) * | 2010-10-18 | 2011-02-03 | Yanmar Co Ltd | Sulky rice transplanter |
| JP2011189903A (en) * | 2010-03-16 | 2011-09-29 | Yanmar Co Ltd | Working vehicle |
| JP2020043831A (en) * | 2018-09-20 | 2020-03-26 | 株式会社クボタ | Riding type weeder |
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| JPH02295403A (en) * | 1989-05-09 | 1990-12-06 | Kubota Corp | Hydraulic apparatus of working car |
| JPH05103514A (en) * | 1991-11-25 | 1993-04-27 | Yanmar Agricult Equip Co Ltd | Machine frame structure of riding rice-transplanter |
| JPH06286501A (en) * | 1993-03-31 | 1994-10-11 | Yanmar Agricult Equip Co Ltd | Moving agricultural machinery |
| JPH07327404A (en) * | 1994-06-07 | 1995-12-19 | Mitsubishi Agricult Mach Co Ltd | Work machine control device of tractor for agriculture |
| JPH1148804A (en) * | 1997-08-06 | 1999-02-23 | Kanzaki Kokyukoki Mfg Co Ltd | Axle driving device |
| JPH1156008A (en) * | 1997-08-13 | 1999-03-02 | Kubota Corp | Hydraulic lifting and lowering apparatus of tractor |
| JP2000309227A (en) * | 1999-04-23 | 2000-11-07 | Mitsubishi Agricult Mach Co Ltd | Agricultural machine |
| JP2001097061A (en) * | 1999-09-28 | 2001-04-10 | Mitsubishi Agricult Mach Co Ltd | Mobile farming machine |
| JP2003072602A (en) * | 2001-09-07 | 2003-03-12 | Yanmar Agricult Equip Co Ltd | Moving agricultural machine |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004113144A1 (en) * | 2003-06-17 | 2004-12-29 | Yanmar Co., Ltd. | Tractor |
| CN100372714C (en) * | 2003-06-17 | 2008-03-05 | 洋马株式会社 | Tractor |
| JP2006097889A (en) * | 2004-09-02 | 2006-04-13 | Kanzaki Kokyukoki Mfg Co Ltd | Hydrostatic transaxle and hydraulically driven vehicle |
| US8109355B2 (en) | 2004-09-02 | 2012-02-07 | Kanzaki Kokyukoki Mfg. Co., Ltd. | Hydrostatic transaxle and hydraulically driven vehicle |
| JP2011189903A (en) * | 2010-03-16 | 2011-09-29 | Yanmar Co Ltd | Working vehicle |
| JP2011019533A (en) * | 2010-10-18 | 2011-02-03 | Yanmar Co Ltd | Sulky rice transplanter |
| JP2020043831A (en) * | 2018-09-20 | 2020-03-26 | 株式会社クボタ | Riding type weeder |
| JP6991117B2 (en) | 2018-09-20 | 2022-01-12 | 株式会社クボタ | Riding mower |
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