JPH11332321A - Rice transplanter - Google Patents
Rice transplanterInfo
- Publication number
- JPH11332321A JPH11332321A JP10147952A JP14795298A JPH11332321A JP H11332321 A JPH11332321 A JP H11332321A JP 10147952 A JP10147952 A JP 10147952A JP 14795298 A JP14795298 A JP 14795298A JP H11332321 A JPH11332321 A JP H11332321A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- engine
- traveling
- rice transplanter
- continuously variable
- 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
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 19
- 235000009566 rice Nutrition 0.000 title claims abstract description 19
- 240000007594 Oryza sativa Species 0.000 title 1
- 230000005540 biological transmission Effects 0.000 claims abstract description 38
- 241000209094 Oryza Species 0.000 claims abstract description 18
- 230000007423 decrease Effects 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract 2
- 230000002159 abnormal effect Effects 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 abstract 1
- 238000002054 transplantation Methods 0.000 abstract 1
- 239000000446 fuel Substances 0.000 description 12
- 238000002347 injection Methods 0.000 description 11
- 239000007924 injection Substances 0.000 description 11
- 230000003028 elevating effect Effects 0.000 description 9
- 230000008602 contraction Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 210000000078 claw Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Transplanting Machines (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、田植機に関する。TECHNICAL FIELD The present invention relates to a rice transplanter.
【０００２】[0002]
【従来の技術】従来、無段変速機を具備し、負荷に対応
して無段変速機の変速比を変更することによって、エン
ジンの回転数を一定に保持するようにした田植機があ
る。2. Description of the Related Art Conventionally, there is a rice transplanter which is provided with a continuously variable transmission and changes the speed ratio of the continuously variable transmission in accordance with the load so as to keep the engine speed constant.
【０００３】[0003]
【発明が解決しようとする課題】ところが、上記田植機
では、エンジンの回転数は一定に保持されるものの、負
荷が変動すると走行速度が変動することになり、植付精
度が低下するという問題があった。However, in the above rice transplanter, although the engine speed is kept constant, the running speed fluctuates when the load fluctuates, and the planting accuracy decreases. there were.
【０００４】[0004]
【課題を解決するための手段】そこで、本発明では、走
行部を駆動する無段変速機を具備した田植機において、
上記無段変速機の変速比変更に連動してエンジンの回転
数を変更させることにより、自動的に使用者が設定した
走行速度を維持すべく構成し、しかも、走行中、上記設
定速度を変更可能としたことを特徴とする田植機を提供
せんとするものである。Accordingly, the present invention provides a rice transplanter having a continuously variable transmission for driving a traveling section.
The running speed set by the user is automatically maintained by changing the engine speed in conjunction with the change in the gear ratio of the continuously variable transmission, and the running speed is changed during running. The purpose of the present invention is to provide a rice transplanter that has been made possible.
【０００５】また、次のような特徴を併せ有するもので
ある。[0005] The present invention also has the following features.
【０００６】上記無段変速機の減速比が大きくなるに従
って、エンジン回転数増減の割合を大きくすること。[0006] As the reduction ratio of the continuously variable transmission increases, the rate of increase or decrease in the engine speed increases.
【０００７】機体の走行速度を検出する車速センサを設
け、エンジンの回転数を検出する回転センサを設けて、
各センサが異常値を示したときは、エンジンの回転数を
最低回転数まで低下させること。A vehicle speed sensor for detecting the running speed of the body is provided, and a rotation sensor for detecting the number of revolutions of the engine is provided.
When each sensor indicates an abnormal value, reduce the engine speed to the minimum speed.
【０００８】[0008]
【発明の実施の形態】本発明の実施の形態は、エンジン
と走行部との間に無段変速機を介設すると共に、機体
に、走行速度を設定する変速兼植付昇降レバーと、走行
速度を検出する車速センサとを設けてマイクロコンピュ
ータを内蔵したコントローラに接続し、同コントローラ
で、上記無段変速機の変速比に対応してエンジンの回転
数を制御するように構成して、変速兼植付昇降レバーで
設定した走行速度を保持するようにしている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention comprises a continuously variable transmission interposed between an engine and a traveling section, and a speed change / planting elevating lever for setting a traveling speed on a body of the vehicle. A vehicle speed sensor for detecting speed is provided and connected to a controller having a built-in microcomputer, and the controller controls the engine speed in accordance with the speed ratio of the continuously variable transmission. The traveling speed set by the combined planting elevating lever is maintained.
【０００９】また、走行中、上記変速兼植付昇降レバー
を操作して設定走行速度を変更できるようにして、アク
セルレバーを使わないで済むようにしている。[0009] Further, during traveling, the set traveling speed can be changed by operating the speed change / planting elevating lever, so that the use of the accelerator lever is eliminated.
【００１０】更に、エンジンの回転数を検出する回転セ
ンサを設けて、同回転センサと前記車速センサとが異常
値を示した場合は、エンジン回転を最低回転数まで低下
させて、エンジンや機体が故障しないようにしている。[0010] Furthermore, a rotation sensor for detecting the engine speed is provided, and when the speed sensor and the vehicle speed sensor indicate abnormal values, the engine speed is reduced to the minimum speed and the engine or the body is operated. I am trying not to break down.
【００１１】[0011]
【実施例】本発明の実施例について図面を参照して説明
する。Embodiments of the present invention will be described with reference to the drawings.
【００１２】図１及び図２は、本発明に係る田植機Ａを
示しており、同田植機Ａは、自走可能の走行機体１の後
方に、昇降リンク機構２と、左右傾動機構３とを介し
て、植付装置Ｂを昇降及び左右傾動自在に連結して、走
行機体１で植付装置Ｂを牽引しながら、田面に苗を植付
けるようにしている。FIGS. 1 and 2 show a rice transplanter A according to the present invention. The rice transplanter A has an elevating link mechanism 2, a left-right tilt mechanism 3, , The planting apparatus B is connected so as to be able to move up and down and tilt right and left, and the traveling body 1 pulls the planting apparatus B to plant seedlings on the rice field.
【００１３】走行機体１は、左右前車輪4,4 と左右後車
輪5,5 とで走行部Ｃを構成し、ボンネット６の内部にエ
ンジンＥを配置し、同ボンネット６の後部にステアリン
グホイル７を突設し、同ステアリングホイル７の下方左
右側に主クラッチペダル８を設けている。The traveling body 1 comprises a traveling section C composed of left and right front wheels 4,4 and left and right rear wheels 5,5. An engine E is disposed inside the hood 6, and a steering wheel 7 is provided at the rear of the hood 6. The main clutch pedal 8 is provided on the left and right sides below the steering wheel 7.
【００１４】また、ステアリングホイル７の右側方にア
クセルレバー９を設け、座席10の右側に、変速兼植付昇
降レバーガイド溝11を挿通した変速兼植付昇降レバー12
を配設している。An accelerator lever 9 is provided on the right side of the steering wheel 7, and a speed change / planting lift lever 12 having a speed change / planting lift lever guide groove 11 inserted through the right side of the seat 10.
Is arranged.
【００１５】変速兼植付昇降レバーガイド溝11は、前後
方向に伸延して形成されており、変速兼植付昇降レバー
12の可動範囲の前部では、副変速機の変速比と、後述す
る走行速度設定器44の設定速度を、前方が高速に、後方
が低速になるように設定でき、後部では、前方が植付装
置Ｂの下げ、後方が上げになるように操作でき、前部か
ら中途部にかけて後述する植付クラッチ46を「入」、中
途部から後部にかけて植付クラッチ46を「切」に操作で
きる。The shift / planting elevating / lowering lever guide groove 11 is formed to extend in the front-rear direction.
At the front of the 12 movable range, the gear ratio of the auxiliary transmission and the speed set by the traveling speed setting unit 44 described later can be set so that the front is high speed and the rear is low speed. The attachment device B can be operated so as to be lowered and the rear portion raised, and the planting clutch 46 described later can be operated “on” from the front part to the middle part, and can be operated “off” from the middle part to the rear part.
【００１６】また、上記変速兼植付昇降レバーガイド溝
11の中途部の前方寄りと後方寄りの位置に、それぞれ左
右凹部13と後凹部14とを形成して、左右凹部13のいずれ
かに変速兼植付昇降レバー12を位置させるとその側のサ
イドマーカが下降し、後凹部14に位置させると植付装置
Ｂの昇降作動を停止させるようにしている。Further, the above-mentioned lifting / lowering lever guide groove with shifting and planting is provided.
A left and right recess 13 and a rear recess 14 are formed at the front and rear positions of the middle part 11 respectively, and when the speed change and planting elevating lever 12 is located in one of the left and right recesses 13, the side on the side When the marker is lowered and positioned in the rear recess 14, the raising and lowering operation of the planting device B is stopped.
【００１７】座席10の左側部には、主変速レバーガイド
溝17を挿通した主変速レバー18を配設しており、上記主
変速レバーガイド溝17は、後方に拡開した略Ｙ字状に形
成されており、主変速レバー18を主変速レバーガイド溝
17の前端部に位置させたときは、主クラッチが「入」
で、かつ、主変速機が路上走行に適した変速比になり、
右側後端部に位置させたときは、主クラッチが「入」
で、かつ、後進になり、左側後端部では主クラッチが
「切」になるようにしている。On the left side of the seat 10, there is provided a main shift lever 18 through which a main shift lever guide groove 17 is inserted. The main shift lever guide groove 17 is formed in a substantially Y-shape expanding rearward. The main transmission lever 18 is formed with the main transmission lever guide groove.
When the front clutch is positioned at 17, the main clutch is
And the main transmission has a gear ratio suitable for traveling on the road,
When positioned at the right rear end, the main clutch is
The main clutch is "disengaged" at the rear end on the left side.
【００１８】植付装置Ｂは、中央植付ケース19に左右方
向に伸延した連結パイプ20を挿通し、同連結パイプ20に
適宜間隔を保持して複数の植付ケース21を配置し、これ
らの上方に、左右方向に伸延した上下レール22,23 を介
して前高後低に傾斜した苗載台24を左右往復移動自在に
配設し、各植付ケース21に装着した植付爪25の作動によ
り、苗載台24に載置した苗マットから所定量の苗を削り
取って田面に植付けるようにしている。図中、26はフロ
ートである。In the planting apparatus B, a connecting pipe 20 extending in the left-right direction is inserted into a central planting case 19, and a plurality of planting cases 21 are arranged in the connecting pipe 20 at appropriate intervals. Above, a seedling table 24 inclined forward and backward is arranged via upper and lower rails 22 and 23 extending in the left-right direction so as to be able to reciprocate left and right, and the planting claws 25 attached to each planting case 21 By the operation, a predetermined amount of seedlings is scraped from the seedling mat placed on the seedling placing stand 24 and is planted on the rice field. In the figure, 26 is a float.
【００１９】昇降リンク機構２は、図２及び図３で示す
ように、走行機体１の後部に立設した枠体27の上下部
と、植付装置Ｂの下部前面に連設した門型フレーム28の
上下部とを、それぞれトップリンク29とロアリンク30と
で連結し、走行機体１に設けた昇降用油圧シリンダ31の
伸縮作動により、植付装置Ｂを昇降作動させるようにし
ている。As shown in FIGS. 2 and 3, the elevating link mechanism 2 includes upper and lower portions of a frame 27 erected at the rear of the traveling body 1 and a portal frame connected to the lower front surface of the planting device B. The upper and lower parts 28 are connected to a top link 29 and a lower link 30, respectively, and the planting device B is moved up and down by the expansion and contraction operation of a lifting hydraulic cylinder 31 provided on the traveling machine body 1.
【００２０】左右傾動機構３は、図３及び図４で示すよ
うに、前記門型フレーム28と中央植付ケース19とを、軸
芯を略前後方向に伸延させて配設したローリング軸32を
介して回動自在に連結すると共に、前記上レール22を支
持するために中央植付ケース19に立設した支柱33と、門
型フレーム28の上面に立設した支持体34との間に両ロッ
ド型の傾動用油圧シリンダ35を介設して、同傾動用油圧
シリンダ35の伸縮作動により、植付装置Ｂを走行機体１
に対して左右傾動させるようにしている。As shown in FIGS. 3 and 4, the right and left tilting mechanism 3 includes a rolling shaft 32 in which the portal frame 28 and the central planting case 19 are arranged with their shafts extending substantially in the front-rear direction. And a support 33 erected on the upper surface of the portal frame 28 and a support 33 erected on the central planting case 19 to support the upper rail 22 while rotatably connecting the upper rail 22. The rod type tilting hydraulic cylinder 35 is interposed, and the planting device B is moved by the expansion and contraction operation of the tilting hydraulic cylinder 35 to move the planting machine 1.
To the left and right.
【００２１】図５は、走行部Ｃへの動力伝達機構Ｄと、
同動力伝達機構Ｄを制御するコントローラ40との構成を
示している。FIG. 5 shows a power transmission mechanism D to the traveling section C,
The configuration with a controller 40 that controls the power transmission mechanism D is shown.
【００２２】動力伝達機構Ｄは、エンジンＥに無段変速
機41を連動連結し、同無段変速機41に主クラッチ42を連
動連結し、同主クラッチ42にトランスミッション43を連
動連結し、同トランスミッション43に走行部Ｃに連結し
た車軸45を連動連結する一方、植付クラッチ46を介して
植付装置Ｂを連動連結している。The power transmission mechanism D has an engine E and a continuously variable transmission 41 interlockingly connected thereto, the continuously variable transmission 41 has a main clutch 42 interlockingly connected thereto, and the main clutch 42 has a transmission 43 interlockingly connected thereto. An axle 45 connected to the traveling section C is connected to the transmission 43 in an interlocking manner, and an implanting device B is also connected to the transmission 43 via an inplanting clutch 46.
【００２３】従って、走行部Ｃを駆動する動力は、エン
ジンＥ→無段変速機41→主クラッチ42→トランスミッシ
ョン43→車軸45→走行部Ｃの順で伝達されることにな
り、走行部Ｃは、エンジンＥの回転数に無段変速機41の
変速比を乗じた回転数で駆動されることになる。Therefore, the power for driving the traveling section C is transmitted in the order of the engine E → the continuously variable transmission 41 → the main clutch 42 → the transmission 43 → the axle 45 → the traveling section C. In other words, the engine E is driven at a rotational speed obtained by multiplying the rotational speed by the speed ratio of the continuously variable transmission 41.
【００２４】コントローラ40は、図６で示すように、マ
イクロコンピュータを内蔵して演算及び記憶機能を具備
しており、同コントローラ40の入力側に、前記走行速度
設定器44と、最低速度設定器47と、機体の走行速度を検
出する車速センサ48と、アクセルセンサ49と、回転セン
サ50と、燃料噴射量センサ53とを接続し、同コントロー
ラ40の出力側に、燃料噴射量調節装置51を接続してい
る。As shown in FIG. 6, the controller 40 incorporates a microcomputer and has arithmetic and storage functions. The input side of the controller 40 includes the traveling speed setting device 44 and the minimum speed setting device. 47, a vehicle speed sensor 48 for detecting the running speed of the aircraft, an accelerator sensor 49, a rotation sensor 50, and a fuel injection amount sensor 53, and a fuel injection amount adjusting device 51 is provided on the output side of the controller 40. Connected.
【００２５】アクセルセンサ49は、前述したアクセルレ
バー９の基端部にアクセルワイヤ52を介して連動連結し
ており、同アクセルレバー９の操作量を検出してコント
ローラ40に出力するようにしている。図中、55は戻しバ
ネである。The accelerator sensor 49 is linked to the base end of the accelerator lever 9 via an accelerator wire 52 so as to detect the operation amount of the accelerator lever 9 and output it to the controller 40. . In the figure, 55 is a return spring.
【００２６】走行速度設定器44は、変速兼植付昇降レバ
ー12の基端部に連動連結しており、同走行速度設定器44
の内部に設けたロータリ型の可変抵抗器の抵抗値を、変
速兼植付昇降レバー12の操作により変更してコントロー
ラ40に出力するようにしている。The traveling speed setting device 44 is operatively connected to the base end of the speed change and planting elevating lever 12.
The resistance value of a rotary type variable resistor provided inside is changed by operating the speed change / planting raising / lowering lever 12 and output to the controller 40.
【００２７】最低速度設定器47は、可変抵抗器を内蔵し
ており、その抵抗値をダイアル47aの操作により変更し
てコントローラ40に出力するようにしている。The minimum speed setting device 47 has a built-in variable resistor, and changes its resistance value by operating the dial 47a to output it to the controller 40.
【００２８】回転センサ50は、エンジンＥに付設されて
おり、同エンジンＥの回転数をコントローラ40に出力す
るようにしている。The rotation sensor 50 is attached to the engine E, and outputs the rotation speed of the engine E to the controller 40.
【００２９】燃料噴射量調節装置51は、エンジンＥに燃
料を供給する燃料噴射ポンプ54に付設されており、コン
トローラ40からの制御信号により燃料噴射ポンプ54の燃
料噴射量を調節するようにしている。The fuel injection amount adjusting device 51 is attached to the fuel injection pump 54 for supplying fuel to the engine E, and adjusts the fuel injection amount of the fuel injection pump 54 according to a control signal from the controller 40. .
【００３０】そして、変速兼植付昇降レバー12の操作に
より、機体の走行速度と副変速機の変速比とを設定して
おけば、植付走行中、負荷の変動による走行速度の変動
に対応して、燃料噴射量調節装置51が作動して燃料噴射
ポンプ54の燃料噴射量を調節し、設定速度を保持するよ
うにエンジンＥの回転数を調節する。If the traveling speed of the machine body and the gear ratio of the auxiliary transmission are set by operating the speed change / planting raising / lowering lever 12, it is possible to cope with the fluctuation of the traveling speed due to the fluctuation of the load during the planting traveling. Then, the fuel injection amount adjusting device 51 operates to adjust the fuel injection amount of the fuel injection pump 54, and adjust the rotation speed of the engine E so as to maintain the set speed.
【００３１】従って、変速兼植付昇降レバー12の操作だ
けで、走行負荷の変動に関係なく走行速度を一定に保持
することができ、運転操作を簡易にすると共に、植付精
度を向上することができる。Therefore, the running speed can be kept constant irrespective of the variation of the running load only by operating the speed change and planting raising / lowering lever 12, thereby simplifying the driving operation and improving the planting accuracy. Can be.
【００３２】また、変速兼植付昇降レバー12で設定した
無段変速機41の減速比が大きくなるに従って、燃料噴射
量調節装置51の燃料噴射量制御感度を大きくして、エン
ジンＥ回転数増減の割合を大きくしているので、走行速
度の制御が迅速かつ円滑になり、オペレータのフィーリ
ングに合致した走行速度の制御を行うことができる。Further, as the speed reduction ratio of the continuously variable transmission 41 set by the speed change and planting elevating lever 12 increases, the fuel injection amount control sensitivity of the fuel injection amount adjusting device 51 is increased to increase or decrease the engine E rotation speed. Is increased, the control of the traveling speed becomes quick and smooth, and the traveling speed can be controlled in accordance with the feeling of the operator.
【００３３】また、車速センサ48と回転センサ50とが異
常値を示したときは、エンジンＥの回転数を最低回転数
まで低下させて、エンジンＥの過回転や、動力伝達機構
Ｄに過大なトルクが作用するなどの故障原因が発生しな
いようにしている。When the vehicle speed sensor 48 and the rotation sensor 50 indicate abnormal values, the engine E is reduced to the minimum rotational speed, so that the engine E overspeeds or the power transmission mechanism D excessively increases. Failure causes such as torque acting are prevented.
【００３４】また、旋回走行や路上走行時には、前記最
低速度設定器47で設定した速度で機体を走行させること
ができ、更に、最低速度設定器47にＯＦＦ位置を設け
て、ダイアル47a をＯＦＦ位置47b に操作した際には、
従来同様にアクセルレバー９と無段変速機41の変速比変
更による走行速度調節を可能にすることもできる。When the vehicle is turning or traveling on a road, the aircraft can travel at the speed set by the minimum speed setting device 47. Further, the minimum speed setting device 47 is provided with an OFF position, and the dial 47a is set to the OFF position. When you operate on 47b,
As in the conventional case, it is possible to adjust the traveling speed by changing the gear ratio between the accelerator lever 9 and the continuously variable transmission 41.
【００３５】[0035]
【発明の効果】本発明によれば次のような効果を得るこ
とができる。According to the present invention, the following effects can be obtained.
【００３６】請求項１記載の発明では、走行部を駆動す
る無段変速機を具備した田植機において、上記無段変速
機の変速比変更に連動してエンジンの回転数を変更させ
ることにより、自動的に使用者が設定した走行速度を維
持すべく構成し、しかも、走行中、上記設定速度を変更
可能としたことによって、アクセルレバー等の操作を要
せず運転操作が簡易になり、植付作業中の走行速度が一
定するので、植付精度を高めることができる。According to the first aspect of the present invention, in a rice transplanter having a continuously variable transmission for driving a traveling section, the number of revolutions of the engine is changed in conjunction with a change in the speed ratio of the continuously variable transmission. The system is configured to automatically maintain the running speed set by the user, and the running speed can be changed during running. Since the traveling speed during the attaching work is constant, the planting accuracy can be improved.
【００３７】請求項２記載の発明では、上記無段変速機
の減速比が大きくなるに従って、エンジン回転数上昇の
割合を大きくすることによって、走行速度の制御が迅速
かつ円滑になり、オペレータのフィーリングに合致した
走行速度の制御を行うことができる。According to the second aspect of the present invention, as the reduction ratio of the continuously variable transmission increases, the rate of increase in the engine speed is increased, so that the control of the traveling speed becomes quick and smooth, and the operator's feeling is reduced. It is possible to control the traveling speed according to the ring.
【００３８】請求項３記載の発明では、機体の走行速度
を検出する車速センサを設け、エンジンの回転数を検出
する回転センサを設けて、各センサが異常値を示したと
きは、エンジンの回転数を最低回転数まで低下させるこ
とによって、エンジンや動力伝達機構等の故障発生を防
止することができる。According to the third aspect of the present invention, a vehicle speed sensor for detecting the traveling speed of the airframe is provided, and a rotation sensor for detecting the number of revolutions of the engine is provided. By reducing the number of rotations to the minimum number of rotations, it is possible to prevent failures of the engine, the power transmission mechanism and the like.
【図１】本発明に係る田植機の側面図。FIG. 1 is a side view of a rice transplanter according to the present invention.
【図２】同平面図。FIG. 2 is a plan view of the same.
【図３】左右傾動機構の側面図。FIG. 3 is a side view of a left-right tilting mechanism.
【図４】左右傾動機構の平面図。FIG. 4 is a plan view of a left-right tilting mechanism.
【図５】動力伝達機構とコントローラの構成を示す説明
図。FIG. 5 is an explanatory diagram showing a configuration of a power transmission mechanism and a controller.
【図６】コントローラの構成を示す説明図。FIG. 6 is an explanatory diagram showing a configuration of a controller.
Ａ 田植機 Ｃ 走行部 Ｅ エンジン 41 無段変速機 48 車速センサ 50 回転センサ A Rice transplanter C Running section E Engine 41 Continuously variable transmission 48 Vehicle speed sensor 50 Rotation sensor
Claims (3)
具備した田植機(A)において、 上記無段変速機(41)の変速比変更に連動してエンジン
(E) の回転数を変更させることにより、予め設定した走
行速度を自動的に維持すべく構成し、しかも、走行中、
上記設定速度を変更可能としたことを特徴とする田植
機。In a rice transplanter (A) provided with a continuously variable transmission (41) for driving a traveling section (C), an engine is operated in conjunction with a change in gear ratio of the continuously variable transmission (41).
By changing the number of revolutions of (E), it is configured to automatically maintain the traveling speed set in advance.
A rice transplanter characterized in that the set speed can be changed.
るに従って、エンジン(E) 回転数増減の割合を大きくす
ることを特徴とする請求項１記載の田植機。2. The rice transplanter according to claim 1, wherein the rate of increase / decrease of the rotation speed of the engine (E) increases as the reduction ratio of the continuously variable transmission (41) increases.
8)を設け、エンジン(E) の回転数を検出する回転センサ
(50)を設けて、各センサ(48)(50)が異常値を示したとき
は、エンジン(E) の回転数を最低回転数まで低下させる
ことを特徴とする請求項１又は２記載の田植機。3. A vehicle speed sensor (4) for detecting a traveling speed of the body.
8) A rotation sensor that detects the number of revolutions of the engine (E)
3. The method according to claim 1, further comprising the step of: reducing the number of revolutions of the engine to the minimum number of revolutions when each of the sensors indicates an abnormal value. Rice transplanter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14795298A JP3996269B2 (en) | 1998-05-28 | 1998-05-28 | Rice transplanter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14795298A JP3996269B2 (en) | 1998-05-28 | 1998-05-28 | Rice transplanter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11332321A true JPH11332321A (en) | 1999-12-07 |
| JP3996269B2 JP3996269B2 (en) | 2007-10-24 |
Family
ID=15441797
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14795298A Expired - Fee Related JP3996269B2 (en) | 1998-05-28 | 1998-05-28 | Rice transplanter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3996269B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008265755A (en) * | 2008-05-31 | 2008-11-06 | Iseki & Co Ltd | Transmission control device for stepless transmission |
| DE102012020672A1 (en) | 2011-10-28 | 2013-05-02 | Murata Manufacturing Co., Ltd. | Switching Power Supply |
-
1998
- 1998-05-28 JP JP14795298A patent/JP3996269B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008265755A (en) * | 2008-05-31 | 2008-11-06 | Iseki & Co Ltd | Transmission control device for stepless transmission |
| DE102012020672A1 (en) | 2011-10-28 | 2013-05-02 | Murata Manufacturing Co., Ltd. | Switching Power Supply |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3996269B2 (en) | 2007-10-24 |
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