JPH06319360A - Vehicle speed controller for combines - Google Patents

Vehicle speed controller for combines

Info

Publication number
JPH06319360A
JPH06319360A JP11015793A JP11015793A JPH06319360A JP H06319360 A JPH06319360 A JP H06319360A JP 11015793 A JP11015793 A JP 11015793A JP 11015793 A JP11015793 A JP 11015793A JP H06319360 A JPH06319360 A JP H06319360A
Authority
JP
Japan
Prior art keywords
mode
vehicle speed
speed
standard
posture
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.)
Pending
Application number
JP11015793A
Other languages
Japanese (ja)
Inventor
Fumio Yoshimura
文夫 吉邨
Hiroki Matsuzawa
宏樹 松沢
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Original Assignee
Iseki and Co Ltd
Iseki Agricultural Machinery Mfg Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Iseki and Co Ltd, Iseki Agricultural Machinery Mfg Co Ltd filed Critical Iseki and Co Ltd
Priority to JP11015793A priority Critical patent/JPH06319360A/en
Publication of JPH06319360A publication Critical patent/JPH06319360A/en
Pending legal-status Critical Current

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  • Harvester Elements (AREA)

Abstract

PURPOSE:To change the vehicle speed automatically by switching the reaping modes depending on the standing posture of the cereal stalks. CONSTITUTION:The reaping mode is set to the standard, when the standing posture of the cereal stalks is standard, and switched to the falling aand bonding-down mode by switch 3, when the stalks fall and bend down. At the same time, the rotating speed of the reaping unit 2 is changed to the optimal one, and the vehicle seed is automatically changed so that it is fitted to the standard or falling and bending-down mode by means of a continuously variable- speed drive, when the mode is changed by switch 3.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】この発明は、コンバイン等の車速
制御装置に関し、立毛穀稈の起立姿勢に応じてモ−ド切
替スイッチを標準モ−ドと倒伏モ−ドとに切替えること
によって、車速を自動的に増速または減速させるように
したもの等に利用できる。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle speed control device for combine harvesters and the like, and it is capable of changing the vehicle speed by changing over a mode changeover switch between a standard mode and a lodging mode in accordance with the standing posture of a raised grain culm. Can be used for things such as automatically increasing or decreasing speed.

【0002】[0002]

【従来の技術および発明が解決しようとする課題】コン
バインの作業時に、立毛穀稈が倒伏姿勢のときは穀稈が
乱れて車速を減速しなければロスが大きくなり、最悪の
場合は作業継続に支障をきたすことになりかねない。こ
の車速の減速に伴って、通常では車速に比例同調して刈
取装置の回転速度も低下して刈取性能に障害が起きるよ
うになるので、このときモ−ド切替スイッチの作用によ
り、減速した車速に対して刈取装置の回転速度を上昇さ
せて、倒伏姿勢の立毛穀稈に対して引起し速度等が遅れ
ないようにするのである。
2. Description of the Related Art During combine work, when the vertical culm is in a lying position, the grain culm is disturbed and the loss is large unless the vehicle speed is reduced. In the worst case, the work is continued. It may cause trouble. As the vehicle speed decelerates, the rotational speed of the mowing device usually decreases in proportion to the vehicle speed and the mowing performance is impaired.At this time, the mode changeover switch acts to reduce the vehicle speed. On the other hand, the rotation speed of the mowing device is increased so that the raising speed and the like of the raised culm in the lying posture is not delayed.

【0003】しかし、このような車速の変速は、変速レ
バ−の操作により走行用の無段変速装置を変速させて、
穀稈が倒伏姿勢となったときは減速を行い、穀稈が標準
姿勢となったときは増速を行うようにするのであるが、
これらの車速の変速時にはその都度変速レバ−の操作が
必要となり、この変速レバ−の操作度数が多くなると大
変に面倒なものであると共に、操作時における変速レバ
−の変速位置を作業性能を阻害しないような位置に設定
する必要があり、この位置決めがまた大変に煩わしいも
のである。
However, in order to change the vehicle speed as described above, the continuously variable transmission for traveling is changed by operating the shift lever,
When the grain culm is in the lying posture, deceleration is performed, and when the grain culm is in the standard posture, the speed is increased.
The operation of the shift lever is required each time the vehicle speed is changed, and it is very troublesome when the operation frequency of the shift lever increases, and the shift position of the shift lever at the time of operation impairs work performance. It is necessary to set the position so as not to do so, and this positioning is very troublesome.

【0004】そこでこの発明は、立毛穀稈の起立姿勢が
標準姿勢または倒伏姿勢の何れにあっても、モ−ド切替
スイッチを標準モ−ドまたは倒伏モ−ドへ各々切替える
ことにより、車速を自動的に増速または減速させるよう
にしようとするものである。
Therefore, according to the present invention, the vehicle speed is changed by switching the mode changeover switch to the standard mode or the laid-down mode regardless of whether the standing posture of the napped culm is the standard posture or the lying posture. It is intended to automatically accelerate or decelerate.

【0005】[0005]

【課題を解決するための手段】この発明は、油圧駆動に
より車速を自在に変速可能な無段変速装置1と、刈取装
置2の回転速度を穀稈の立毛姿勢によって切替えるモ−
ド切替スイッチ3とを有するコンバイン等において、こ
のモ−ド切替スイッチ3を穀稈の立毛姿勢に応じて標準
モ−ドから倒伏モ−ドに切替えたときは、車速を予め定
める穀稈の倒伏姿勢に適した速度まで自動的に減速し、
逆に倒伏モ−ドから標準モ−ドに切替えたときは、車速
を穀稈の標準姿勢時の負荷に応じた車速まで自動的に増
速させることを特徴とするコンバイン等の車速制御装置
の構成とする。
SUMMARY OF THE INVENTION The present invention is a mode for switching the rotational speeds of a continuously variable transmission 1 capable of freely changing the vehicle speed by hydraulic drive and a mowing device 2 depending on the standing posture of a grain stem.
In a combine or the like having the mode selector switch 3, when the mode selector switch 3 is switched from the standard mode to the lodging mode in accordance with the standing posture of the grain, the vehicle speed of the grain is determined in advance. Automatically decelerates to a speed suitable for the posture,
Conversely, when switching from the lodging mode to the standard mode, the vehicle speed control device such as a combine is characterized in that the vehicle speed is automatically increased to the vehicle speed according to the load when the grain stem is in the standard posture. The configuration.

【0006】[0006]

【作用、および発明の効果】コンバインの作業時に、立
毛穀稈の起立姿勢が標準姿勢から倒伏姿勢へ移行して穀
稈の乱れが激しくなったときは、モ−ド切替スイッチ3
を倒伏モ−ドに切替えることにより、刈取装置2の回転
速度を予め設定されたレベルまで上昇させると同時に、
走行用の無段変速装置1を変速レバ−の操作によること
なく、例えばCPUを配した制御装置等に予め設定され
た倒伏姿勢に適した車速まで自動的に減速して作業を行
うようにし、再び立毛穀稈の起立姿勢が倒伏姿勢から標
準姿勢へ移行したときは、モ−ド切替スイッチ3を標準
モ−ドに切替えることにより、刈取装置2の回転速度を
予め設定されたレベルまで下降させると同時に、変速レ
バ−の操作によることなく標準姿勢に適した通常の車速
へ自動的に増速して、作業負荷に応じた車速により作業
を行うことができる。
[Operation and effect of the invention] When the standing posture of the raised culm is changed from the standard posture to the lying posture during the operation of the combine, and the disorder of the culm becomes severe, the mode changeover switch 3
By changing over to the lodging mode, the rotation speed of the reaper 2 is raised to a preset level and at the same time,
The continuously variable transmission 1 for traveling is automatically decelerated to a vehicle speed suitable for a laid posture preset in a control device or the like having a CPU, for example, without operating the shift lever to perform work. When the standing posture of the raised culm again shifts from the lying posture to the standard posture, the rotation speed of the reaping device 2 is lowered to a preset level by switching the mode changeover switch 3 to the standard mode. At the same time, the vehicle speed can be automatically increased to the normal vehicle speed suitable for the standard posture without operating the shift lever, and the work can be performed at the vehicle speed according to the work load.

【0007】このように、立毛穀稈の起立姿勢が標準姿
勢または倒伏姿勢の何れにあっても、モ−ド切替スイッ
チ3を標準モ−ドまたは倒伏モ−ドへ各々切替えること
によって、刈取装置2の回転速度を切替えた各モ−ドに
対応して調整変速させると同時に、車速を制御装置等に
予め設定された各モ−ドに適した速度に自動的に変速さ
せることができるので、無段変速装置1をその都度変速
レバ−の操作によって各モ−ドに適した車速に変速させ
るような面倒な操作と、この変速レバ−操作時における
適正な位置決めのための煩わしさから開放されるもので
ある。
As described above, whether the standing posture of the napped culm is in the standard posture or the lodging posture, by switching the mode changeover switch 3 to the standard mode or the lodging mode, the reaping device can be obtained. Since the adjustment speed can be adjusted corresponding to each mode in which the rotation speed of 2 is switched, the vehicle speed can be automatically changed to a speed suitable for each mode preset in the control device or the like. It is released from the troublesome operation of shifting the continuously variable transmission 1 to the vehicle speed suitable for each mode by operating the shift lever each time, and the trouble of proper positioning at the time of the shift lever operation. It is something.

【0008】[0008]

【実施例】なお、図例において、この発明を穀類の収穫
作業を行うコンバインについて説明する。コンバインの
車台4の下部側に土壌面を走行する左右一対の走行クロ
−ラ5を有する走行装置6を配設し、該車台4上に、フ
ィ−ドチェン7に挟持して供給される穀稈を脱穀し、こ
の脱穀された穀粒を選別回収する脱穀装置8を載置す
る。また、この脱穀装置8の前方側に立毛穀稈を分草し
引起こして刈取ると共に、この刈取った穀稈を後方側へ
搬送しながら横倒れ姿勢に変更して該フィ−ドチェン7
へ受渡しする刈取装置2を、土壌面に対して上下昇降自
在となるよう該車台4の前端部へ装架配置する。また、
該脱穀装置8の一側にコンバインの操作制御を行う操作
装置9と、この操作のための操作席10とを設け、この
操作席10の下方部にエンジン11を配置し、これらの
各配置によってコンバインの車体12を構成する。
EXAMPLES The present invention will be described with reference to the drawings with reference to a combine for performing a grain harvesting operation. A traveling device 6 having a pair of left and right traveling crawlers 5 traveling on the soil surface is arranged on the lower side of the vehicle chassis 4 of the combine, and the grain culm is sandwiched by the feed chain 7 and supplied to the vehicle chassis 4. Is threshed, and a threshing device 8 for selecting and collecting the threshed grains is placed. In addition, a standing culm culm is weeded on the front side of the threshing device 8 and raised to be mowed, and the cut culm is conveyed to the rear side to be changed to a sideways posture so that the feeding chain 7 is changed.
The harvesting device 2 to be delivered to is mounted on the front end of the chassis 4 so as to be vertically movable up and down with respect to the soil surface. Also,
An operating device 9 for controlling the operation of the combine and an operating seat 10 for this operation are provided on one side of the threshing device 8, and an engine 11 is arranged in the lower part of the operating seat 10. The combine vehicle body 12 is configured.

【0009】前記車台4の前端側に車速をギヤによって
有段に変速するミッションケ−ス13を設け、このミッ
ションケ−ス13の入力側へ油圧駆動による無段変速装
置1を連動連結すると共に、その出力側から各々外方へ
向け左右の走行駆動軸14を延出させ、その延出端部に
前記走行クロ−ラ5を巻掛け駆動する走行駆動輪15を
軸着して構成する。
A transmission case 13 for stepwise shifting the vehicle speed by gears is provided on the front end side of the chassis 4, and a continuously variable transmission 1 by hydraulic drive is interlockingly connected to the input side of the transmission case 13. The left and right traveling drive shafts 14 are extended outward from their output sides, and traveling drive wheels 15 for driving the winding of the traveling crawler 5 are axially attached to the extended ends.

【0010】前記無段変速装置1を手動操作により自在
に変速させる変速レバ−16を前記操作装置9の一側
に、その上下中間位置よりやや下側位置に設けた支点を
中心に前後方向へ回動揺動可能に配設すると共に、該無
段変速装置1と該変速レバ−16とをリンク機構等によ
って連結し、このリンク機構部分の適宜位置に該無段変
速装置1を操作して車速を自在に変速させるモ−タを連
結して構成し、このモ−タの作用をON・OFFさせる
車速制御スイッチ17を該操作装置9の周辺部近傍に配
設する。なお、該モ−タに代えて伸縮シリンダ等その他
の操作具を使用してもよい。
A shift lever 16 for freely shifting the continuously variable transmission 1 by a manual operation is provided on one side of the operating device 9 in the front-rear direction about a fulcrum provided at a position slightly lower than an intermediate position between the upper and lower sides thereof. The continuously variable transmission 1 and the shift lever 16 are connected to each other by a link mechanism or the like so as to be rotatable and swingable, and the continuously variable transmission 1 is operated at an appropriate position of the link mechanism portion to control the vehicle speed. A vehicle speed control switch 17 for turning on and off the operation of the motor is arranged near the peripheral portion of the operating device 9. It should be noted that other operation tools such as a telescopic cylinder may be used instead of the motor.

【0011】刈取作業時に、立毛穀稈の起立姿勢が標準
姿勢のときは標準モ−ドに、倒伏姿勢のときは倒伏モ−
ドに刈取適応モ−ドを切替えるモ−ド切替スイッチ3
を、前記変速レバ−16の操作用把手部分に設ける。車
体12の進行中の舵取りや旋回を行う操向用のパワステ
レバ−18と、このパワステレバ−18の傾倒操作によ
ってONするパワステスイッチ19とを前記操作装置9
の一側に配設する。前記無段変速装置1の変速位置を検
出する変速位置センサ20を変速操作回路中の適切な箇
所に配設すると共に、前記エンジン11の出力回転数を
検出するエンジン回転センサ21を該エンジン11の周
辺適宜箇所に配設して構成する。
During the reaping work, when the standing posture of the napped culm is in the standard posture, it is in the standard mode, and when it is in the lying posture, the lying mode is in the lying mode.
Mode changeover switch 3 for changing over to cutting mode
Is provided in the operating handle portion of the shift lever 16. The steering device 9 includes a steering power steering 18 for steering and turning the vehicle body 12 in progress, and a power steering switch 19 that is turned on by tilting the power steering bar 18.
It is installed on one side. A shift position sensor 20 for detecting a shift position of the continuously variable transmission 1 is arranged at an appropriate position in a shift operation circuit, and an engine rotation sensor 21 for detecting an output speed of the engine 11 is provided in the engine 11. It is configured by arranging it at an appropriate location on the periphery.

【0012】前記モ−ド切替スイッチ3の切替えによっ
て車速を増速または減速させるため、CPU等によって
演算制御を行う制御装置22を前記操作装置9の周辺部
近傍に配設すると共に、この制御装置22の入力側へ、
入力インタフェ−ス23を介して該モ−ド切替スイッチ
3、前記車速制御スイッチ17、パワステスイッチ1
9、変速位置センサ20、エンジン回転センサ21を各
々接続し、出力側へは出力インタフェ−ス24を介し
て、前記モ−タを制御して車速を増減速させる増減速リ
レ−25と、エンジンスロットル開閉用のスロットル開
閉リレ−26を各々接続して制御回路を構成する。
In order to accelerate or decelerate the vehicle speed by switching the mode change-over switch 3, a control device 22 for performing arithmetic control by a CPU or the like is arranged near the peripheral portion of the operating device 9 and the control device is provided. To the input side of 22,
Through the input interface 23, the mode changeover switch 3, the vehicle speed control switch 17, the power steering switch 1
9, a shift position sensor 20 and an engine speed sensor 21 are connected to each other, and an acceleration / deceleration relay 25 for increasing / decreasing the vehicle speed by controlling the motor to the output side via an output interface 24; A throttle opening / closing relay 26 for opening / closing the throttle is connected to form a control circuit.

【0013】次に、以上の如き構成による作用について
説明する。コンバインの作業は、エンジン11の起動に
よりミッションケ−ス13から走行駆動輪15へ動力が
伝達され、この走行駆動輪15によって走行クロ−ラ5
を駆動させて車体12を前進させながら、刈取装置2に
よって立毛穀稈を刈取り、この刈取った穀稈を脱穀装置
8によって脱穀を行うようにしており、このような刈取
り時の車速は、通常では作業者が変速レバ−16を手動
により操作を行って車速の増減を設定するようにしてい
るのであるが、車速制御スイッチ17をONしたとき
は、作業者が最初に設定した該変速レバ−16の位置を
上限速として負荷の状況等に応じて制御装置20により
車速を自動的に増減制御させるようにしている。
Next, the operation of the above configuration will be described. In the combine operation, power is transmitted from the transmission case 13 to the traveling drive wheels 15 by starting the engine 11, and the traveling drive wheels 15 drive the traveling crawlers 5.
While driving the car body 12 to move forward, the napped culm is cut by the reaping device 2, and the cut culm is threshed by the threshing device 8. The vehicle speed during such cutting is usually Then, the operator manually operates the shift lever 16 to set the increase / decrease of the vehicle speed. However, when the vehicle speed control switch 17 is turned on, the shift lever initially set by the worker is set. The position of 16 is set as the upper limit speed, and the vehicle speed is automatically controlled to be increased or decreased by the control device 20 according to the load situation or the like.

【0014】また、前記刈取時における立毛穀稈の起立
姿勢が、標準姿勢つまり大凡直立状態乃至は穀稈に余り
乱れを生じない緩やかな傾倒状態の領域から、倒伏姿勢
つまり穀稈の乱れが激しくなる強い傾倒状態の領域へ変
わったときは、図3に示すフロ−チャ−トの如く、ま
ず、車速を自動的に制御する車速制御スイッチ17をO
Nする。この車速制御スイッチ17のON後、モ−ド切
替スイッチ3を標準モ−ドから倒伏モ−ドへ切替える。
この倒伏モ−ドへの切替えにより、前記制御装置22に
変速位置センサ20の検出値を読込んで、前記の如き変
速レバ−16により設定された上限速と該制御装置22
に予め設定された倒伏適応速との比較を行う。この比較
により、倒伏適応速より該上限速の方が高速であると判
断されたときは自動的に車速を倒伏適応速まで減速す
る。
Further, the standing posture of the napped culm at the time of mowing is from a standard posture, that is, a region of a roughly upright state or a gently tilted state where the grain culm is not disturbed so much that the fallen posture, that is, the disturbance of the grain culm is severe. When the vehicle changes to the region of the strong tilt state, first, as shown in the flowchart of FIG. 3, first turn on the vehicle speed control switch 17 for automatically controlling the vehicle speed.
N After the vehicle speed control switch 17 is turned on, the mode changeover switch 3 is changed over from the standard mode to the fall mode.
By switching to this fall mode, the detected value of the shift position sensor 20 is read into the control device 22, and the upper limit speed set by the shift lever 16 and the control device 22 are read.
Comparison with the preset adaptive speed is performed. By this comparison, when it is determined that the upper limit speed is higher than the accommodation adaptive speed, the vehicle speed is automatically reduced to the accommodation adaptive speed.

【0015】また、逆に前記モ−ド切替スイッチ3を倒
伏モ−ドから標準モ−ドへ切替えたときには、この切替
え時の上限速と前記標準モ−ドから倒伏モ−ドへ切替え
たときの上限速との比較を行い、この比較により双方の
上限速に相異があると判断されたときは、現上限速を標
準モ−ドから倒伏モ−ドへ切替えたときの上限速とする
よう自動的に変速する。
On the contrary, when the mode changeover switch 3 is changed over from the lodging mode to the standard mode, the upper limit speed at this switching and the standard mode is switched to the lodging mode. When it is judged that there is a difference in both upper limit speeds by this comparison, the current upper limit speed is changed from the standard mode to the lodging mode. Automatically shifts to the maximum speed.

【0016】また、別に手動優先割込みとして、前記変
速レバ−16を手動により増速方向へ操作を行ったとき
は上限速が最高速となるよう自動的に変速し、逆に該変
速レバ−16を減速方向へ操作を行ったときは、この変
速レバ−16を操作した位置を上限速とするよう自動的
に変速する。これらの増速や減速については全てファジ
ィ推論によって出力を行うようにする。
As a manual prioritized interrupt, when the shift lever 16 is manually operated in the speed increasing direction, the upper limit speed is automatically changed to the maximum speed, and conversely, the shift lever is changed. When the gear 16 is operated in the deceleration direction, the gear lever 16 is automatically shifted so that the position at which the gear lever 16 is operated becomes the upper limit speed. All of these accelerations and decelerations are output by fuzzy reasoning.

【0017】前記刈取装置2の回転速度を、図4に示す
如き標準及び倒伏モ−ドにおける車速対刈取回転速度の
線図において、例えば標準モ−ド時の車速(V)から
(X)量減速した倒伏モ−ド時の車速(V′)となって
も、刈取回転速度(R)は同じとなるような刈取シンク
ロモ−ドを、予め前記制御装置22に設定することによ
り、立毛穀稈の起立姿勢が倒伏姿勢となって倒伏モ−ド
に切替えたときに、車速は減速しても車速に対する刈取
回転速度は標準モ−ド時のレベルを自動的に保持できる
ので、円滑な刈取作業を行うことができる。
The rotation speed of the reaping device 2 is shown in FIG. 4 as a vehicle speed vs. reaping rotation speed diagram in the standard and laid-down modes. For example, the vehicle speed (V) to the (X) amount in the standard mode. By setting in the control device 22 in advance a mowing synchro mode, the mowing rotation speed (R) remains the same even if the vehicle speed (V ') in the decelerated lodging mode is reached. Even if the vehicle speed is reduced when the upright posture is changed to the lying posture and the vehicle is decelerated, the mowing rotation speed relative to the vehicle speed can automatically maintain the level in the standard mode, so smooth mowing work is possible. It can be performed.

【0018】標準モ−ドから倒伏モ−ドへ切替えたとき
の車速減速量を、コンバインの制御系をチェックするマ
イコンチェッカ等によって、車体12外から前記制御装
置22の不揮発性ROMへの書込み設定を可能とするこ
とにより、この書込み値を保持して減速制御を行うこと
ができるので、作業者が圃場の状況等に対応する任意の
減速量を設定して、立毛穀稈の倒伏姿勢に適応させた刈
取作業を行うようにしてもよい。
Writing of the vehicle speed deceleration amount when switching from the standard mode to the collapse mode to the nonvolatile ROM of the control device 22 from outside the vehicle body 12 by a microcomputer checker or the like for checking the control system of the combine. By enabling this, it is possible to hold this written value and perform deceleration control, so that the worker can set an arbitrary deceleration amount corresponding to the situation of the field, etc., and adapt to the fall posture of the napped culm. The harvesting work may be performed.

【0019】また、前記マイコンチェック等による標準
モ−ドから倒伏モ−ドへ切替えたときの車速減速量の制
御に代えて、コンバインの電源のみONして前記エンジ
ン11は始動させない状態において、車体12に設けた
センサ類のチェックを行うセンサチエックスイッチをO
Nすると共に、前記変速レバ−16を前進方向に最高速
位置で停止したときに、前記制御装置22に設けた減速
値設定モ−ドが設定状態となり、図5に示す如く、該変
速レバ−16を中立方向へ引き戻した位置までの間隔a
を減速量として設定できるので、作業者が圃場の状況等
に対応して該変速レバ−16の操作によって感覚的に減
速量を設定可能となり、立毛穀稈の倒伏姿勢に対応させ
た刈取作業を行うようにしてもよい。
Further, instead of controlling the vehicle speed deceleration amount when switching from the standard mode to the collapse mode by the microcomputer check or the like, the vehicle body is not turned on when only the power of the combine is turned on and the engine 11 is not started. Turn on the sensor check switch for checking the sensors provided in 12.
When the shift lever 16 is stopped at the highest speed position in the forward direction, the deceleration value setting mode provided in the control device 22 enters the set state, and the shift lever 16 is set as shown in FIG. Distance a to the position where 16 is pulled back in the neutral direction
Since the deceleration amount can be set as the deceleration amount, the operator can intuitively set the deceleration amount by operating the shift lever 16 according to the situation of the field, etc., and the mowing work corresponding to the fall posture of the napped culm can be performed. It may be performed.

【0020】また、コンバインの刈取作業時には、圃場
端の枕地等において車体12の向きを変えるための操向
旋回を行う必要があるが、この操向旋回時に、従来では
刈終り時には作業負荷が軽くなることによりエンジン回
転数が高くなるため、エンジン回転センサ21による検
出値によってエンジン回転数を定格回転数に保持するよ
う、エンジンスロットルを閉出力させるようにしている
ものが多いが、パワステレバ−18の操作によって操向
旋回を行っているときに、該エンジンスロットルを閉出
力させるとエンジン回転数が急激に低下することがあ
る。
Further, at the time of harvesting the combine, it is necessary to make a steering turn to change the direction of the vehicle body 12 in a headland at the end of the field. At the time of this steering turn, a work load is conventionally required at the end of cutting. Since the engine speed increases due to the lighter weight, the engine throttle is closed to output the engine speed so that the engine speed is kept at the rated speed according to the value detected by the engine speed sensor 21. When the engine throttle is closed and output while the steering turn is being performed by the operation, the engine speed may suddenly decrease.

【0021】このため、刈り終りとなって該パワステレ
バ−18の傾倒操作によってパワステスイッチ19がO
Nして操向旋回が始まったときは、この操向旋回を行っ
ている行程中あるいは旋回開始から一定時間内について
は、エンジン回転数が定格回転数より高くなっても該エ
ンジンスロットルを閉出力させないよう、前記制御装置
22に設定された制御によってスロットル開閉リレ−2
7の作用を抑制して、操向旋回中におけるエンジン回転
数の急激な低下を防止させるようにするものである。
Therefore, at the end of cutting, the power steering switch 19 is turned off by tilting the power steering lever 18.
When the steering turn is started after N, the engine throttle is closed and output even if the engine speed becomes higher than the rated speed during the process of performing the steering turn or within a certain time after the start of turning. The throttle opening / closing relay-2 is controlled by the control set in the control device 22 so as not to
The operation of No. 7 is suppressed to prevent a sudden decrease in the engine speed during steering turning.

【図面の簡単な説明】[Brief description of drawings]

【図1】コンバインの全体を示す側面図。FIG. 1 is a side view showing the entire combine.

【図2】車速その他の制御回路を示すブロック図。FIG. 2 is a block diagram showing a vehicle speed and other control circuits.

【図3】車速の制御状態を示すフロ−チャ−ト図。FIG. 3 is a flowchart showing a vehicle speed control state.

【図4】車速に対する刈取回転速度の変化を示すX−Y
座標線図。
FIG. 4 is an XY showing a change in the mowing rotation speed with respect to the vehicle speed.
Coordinate diagram.

【図5】変速レバ−による車速の制御を示す作用斜面
図。
FIG. 5 is an operational perspective view showing control of vehicle speed by a shift lever.

【符号の説明】[Explanation of symbols]

1 無段変速装置 2 刈取装置 3 モ−ド切替スイッチ 1 continuously variable transmission 2 mowing device 3 mode selector switch

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 油圧駆動により車速を自在に変速可能な
無段変速装置1と、刈取装置2の回転速度を穀稈の立毛
姿勢によって切替えるモ−ド切替スイッチ3とを有する
コンバイン等において、このモ−ド切替スイッチ3を穀
稈の立毛姿勢に応じて標準モ−ドから倒伏モ−ドに切替
えたときは、車速を予め定める穀稈の倒伏姿勢に適した
速度まで自動的に減速し、逆に倒伏モ−ドから標準モ−
ドに切替えたときは、車速を穀稈の標準姿勢時の負荷に
応じた車速まで自動的に増速させることを特徴とするコ
ンバイン等の車速制御装置。
1. A combine or the like having a continuously variable transmission 1 capable of freely changing the vehicle speed by hydraulic drive and a mode changeover switch 3 for changing the rotation speed of the reaping device 2 depending on the standing posture of the grain stem. When the mode changeover switch 3 is switched from the standard mode to the lodging mode according to the standing posture of the grain, the vehicle speed is automatically decelerated to a speed suitable for the predetermined orientation of the grain, Conversely, the lodging mode to the standard mode
A vehicle speed control device such as a combine characterized by automatically increasing the vehicle speed to a vehicle speed according to the load of the standard posture of the grain when it is switched to the normal mode.
JP11015793A 1993-05-12 1993-05-12 Vehicle speed controller for combines Pending JPH06319360A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11015793A JPH06319360A (en) 1993-05-12 1993-05-12 Vehicle speed controller for combines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11015793A JPH06319360A (en) 1993-05-12 1993-05-12 Vehicle speed controller for combines

Publications (1)

Publication Number Publication Date
JPH06319360A true JPH06319360A (en) 1994-11-22

Family

ID=14528502

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11015793A Pending JPH06319360A (en) 1993-05-12 1993-05-12 Vehicle speed controller for combines

Country Status (1)

Country Link
JP (1) JPH06319360A (en)

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