JPH05338463A - Moving agricultural machine - Google Patents

Moving agricultural machine

Info

Publication number
JPH05338463A
JPH05338463A JP17185792A JP17185792A JPH05338463A JP H05338463 A JPH05338463 A JP H05338463A JP 17185792 A JP17185792 A JP 17185792A JP 17185792 A JP17185792 A JP 17185792A JP H05338463 A JPH05338463 A JP H05338463A
Authority
JP
Japan
Prior art keywords
shift
speed
lever
potentiometer
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.)
Pending
Application number
JP17185792A
Other languages
Japanese (ja)
Inventor
Takashi Yamada
田 隆 史 山
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.)
Yanmar Co Ltd
Original Assignee
Yanmar Agricultural Equipment 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 Yanmar Agricultural Equipment Co Ltd filed Critical Yanmar Agricultural Equipment Co Ltd
Priority to JP17185792A priority Critical patent/JPH05338463A/en
Publication of JPH05338463A publication Critical patent/JPH05338463A/en
Pending legal-status Critical Current

Links

Landscapes

  • Transplanting Machines (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)

Abstract

PURPOSE:To realize the improvement and stabilization of a speed shift function by forming the shift action range of the shift lever of a continuously variable transmission actuator larger than the detection action range of a feedback sensor, operating the actuator properly within the maximum range. CONSTITUTION:A main clutch 63; a switch 64 for travel speed increase; a road travel switch 65; a shift potentiometer 66 for auxiliary shift lever position; a feedback potentiometer 67 for the displacement detection of an input and output cam by a shift motor 61; are connected to a travel speed shift control circuit 69. In addition, the shift motor 61 together with a manual operation switch 72 is connected to the travel speed shift control circuit 69 via speed increase and decrease circuits 70, 71, and the output range of the shift potentiometer 66 which is the shift action range of the auxiliary shift lever, is formed larger than the output range of the feedback potentiometer 67. Accordingly, a fitting error or a component characteristic is allowed, and the shift motor 61 that is an actuator is operated properly between the maximum - minimum positions, and a shift function is improved, and control action can be stabilized.

Description

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

【0001】[0001]

【産業上の利用分野】本発明は例えば苗載台及び植付爪
を備えて連続的に苗植作業を行う田植機などの移動農機
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 equipped with a seedling table and a planting claw for continuously performing seedling planting work.

【0002】[0002]

【従来の技術】従来、変速レバー位置を検出するレバー
センサと、無段変速機構の変速位置を検出するフィード
バックセンサとを設け、前記各センサ出力を一致させる
ように無段変速機構のアクチュエータを制御する技術が
あった。
2. Description of the Related Art Conventionally, a lever sensor for detecting a gear shift lever position and a feedback sensor for detecting a gear shift position of a continuously variable transmission mechanism are provided, and an actuator of the continuously variable transmission mechanism is controlled so as to match the outputs of the respective sensors. There was a technique to do it.

【0003】[0003]

【発明が解決しようとする課題】前記従来技術は、セン
サなどの部品の特性または取付け誤差などによってレバ
ーセンサとフィードバックセンサの動作範囲にずれが生
じ易く、各センサの動作範囲の不一致によってアクチュ
エータを最大または最小の限度まで作動させ得ない等の
問題があった。
In the prior art described above, the operating ranges of the lever sensor and the feedback sensor are likely to deviate due to the characteristics of the components such as the sensor or mounting errors, and the actuators can be operated at the maximum due to the mismatching of the operating ranges of the sensors. There was also a problem that it could not be operated to the minimum limit.

【0004】[0004]

【課題を解決するための手段】然るに、本発明は、無段
変速機構と、該無段変速機構の変速位置を検出するフィ
ードバックセンサと、前記無段変速機構のアクチュエー
タを変速制御する変速レバーを設ける移動農機におい
て、前記変速レバーの変速動作範囲をフィードバックセ
ンサの検出動作範囲よりも大きく形成したもので、変速
レバーの変速動作範囲外にフィードバックセンサの検出
動作範囲がずれるのを容易に防止し得、取付け誤差また
は部品特性などを許容して変速レバーの変速動作とフィ
ードバックセンサの検出動作を常に同一範囲内で行わせ
得、前記アクチュエータを最大乃至最小位置の間で適正
に作動させて変速機能の向上並びに制御動作の安定化な
どを容易に図り得るものである。
SUMMARY OF THE INVENTION Therefore, according to the present invention, there is provided a continuously variable transmission mechanism, a feedback sensor for detecting a shift position of the continuously variable transmission mechanism, and a shift lever for controlling a shift of an actuator of the continuously variable transmission mechanism. In the mobile agricultural machine to be provided, the shift operation range of the speed change lever is formed larger than the detection operation range of the feedback sensor, and it is possible to easily prevent the detection operation range of the feedback sensor from being shifted outside the speed change operation range of the speed change lever. The gear shift operation of the gear shift lever and the detection operation of the feedback sensor may always be performed within the same range by allowing the mounting error or the component characteristic, and the actuator is properly operated between the maximum and minimum positions to achieve the gear shift function. It is possible to easily improve and stabilize the control operation.

【0005】また、路上走行及び作業走行及び後進など
の切換を行う主変速レバーと、作業走行速度を切換える
副変速レバーを設ける移動農機において、前記副変速レ
バーによって変速制御する無段変速機構を設けたもの
で、作業速度だけを無段変速によって設定し得、無段変
速機構の簡略化並びに作業速度の適正化などを容易に行
い得るものである。
Further, in a mobile agricultural machine provided with a main gear shift lever for switching between road traveling, work traveling and reverse traveling, and a sub gear shifting lever for switching the working traveling speed, a continuously variable transmission mechanism for controlling gear shifting by the sub gear shifting lever is provided. Therefore, only the working speed can be set by continuously variable transmission, and the continuously variable transmission mechanism can be simplified and the working speed can be optimized easily.

【0006】[0006]

【実施例】以下、本発明の実施例を図面に基づいて詳述
する。図1は走行変速制御回路図、図2は乗用田植機の
側面図、図3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)を搭載する車体
フレーム(3)後端をミッションケース(4)に連設さ
せ、前記ミッションケース(4)前方にアクスルケース
(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)の後部両側に伝動ケー
ス(7)を連設し、前記伝動ケース(7)後端部に水田
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(1
0)を取付けると共に、ステップ(11)を形成する車
体カバー(12)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(12)上部に運転席(1
3)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。
Embodiments of the present invention will now be described in detail with reference to the drawings. 1 is a side view of a travel speed change control circuit, FIG. 2 is a side view of a passenger rice transplanter, and FIG. 3 is a plan view of the same. In FIG. 1, (1) is a traveling vehicle on which an operator mounts an engine (2). The rear end of the vehicle body frame (3) is continuously connected to the mission case (4), and the front wheel (6) for traveling the paddy field is supported in front of the mission case (4) through the axle case (5). (4) A transmission case (7) is connected to both sides of the rear portion of the rear portion, and a rear wheel (8) for traveling a paddy field is supported at the rear end portion of the transmission case (7). Then, on both sides of the hood (9) covering the engine (2), etc.
0) is mounted and the mission case (4) is formed by the body cover (12) forming the step (11).
Etc. and cover the driver's seat (1
3) is attached, and a steering handle (14) is provided at the rear of the hood (9) in front of the driver's seat (13).

【0007】また、図中(15)は6条植え用の苗載台
(16)並びに複数の植付爪(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(1
6)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植付ア
ームである爪ケース(22)(22)を配設し、その爪
ケース(22)先端に植付爪(17)(17)を取付け
る。また前記植付ケース(20)の前側にローリング支
点軸(23)を介して支持フレーム(24)を設け、ト
ップリンク(25)及びロワーリンク(26)を含む三
点リンク機構(27)を介して走行車(1)後側に支持
フレーム(24)を連結させ、前記リンク機構(27)
を介して植付部(15)を昇降させる昇降シリンダ(2
8)をロワーリンク(26)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。
Further, (15) in the figure is a planting section comprising a seedling table (16) for 6-row planting and a plurality of planting claws (17), which are made of a synthetic resin having a high front and a low front. Forward tilting seedling stand (1
6) is supported by the planting case (20) via the lower rail (18) and the guide rail (19) so as to be slidable left and right, and at the same time, the rotary case (21) is rotated at a constant speed in one direction. The nail case (22) (22), which is a pair of planting arms, is disposed in a symmetrical position about the rotation axis of the case (20) and is supported by the case (20). Attach the planting claws (17) (17) to the. A support frame (24) is provided on the front side of the planting case (20) via a rolling fulcrum shaft (23), and a three-point link mechanism (27) including a top link (25) and a lower link (26) is provided. The link frame (27) by connecting a support frame (24) to the rear side of the traveling vehicle (1).
Lifting cylinder (2) that lifts and lowers the planting part (15) via the
8) is connected to the lower link (26) and the front and rear wheels (6) and (8) are driven to move, and at the same time, one seedling is planted from the seedling table (16) that slides back and forth from side to side. The nails (17) are taken out and the seedlings are continuously planted.

【0008】また、図中(29)は主変速レバー、(3
0)は植付昇降兼作業走行変速用副変速レバー、(3
1)は植付け感度調節レバー、(32)は主クラッチペ
ダル、(33)(33)は左右ブレーキペダル、(3
4)は2条分均平用センターフロート、(35)は2条
分均平用サイドフロート、(36)は側条施肥機、(3
7)は薬剤散布機である。
Further, in the figure, (29) is a main transmission lever, and (3
(0) is a sub-shift lever for planting up / down and work traveling gear shifting, (3
1) is a planting sensitivity adjusting lever, (32) is a main clutch pedal, (33) and (33) are left and right brake pedals, and (3)
(4) is a center float for leveling two lines, (35) is a side float for leveling two lines, (36) is a side fertilizer applicator, and (3)
7) is a chemical spraying machine.

【0009】さらに、図4、図5、図6に示す如く、操
向ハンドル(14)のステアリング軸(38)を貫挿さ
せるギヤケース(39)をエンジン(2)の後側に設
け、出入力プーリ(40)(41)及びベルト(42)
を有する無段変速機構(43)を備え、エンジン(2)
の出力軸(44)にギヤケース(39)の入力軸(4
5)を前記無段変速機構(43)を介して連結させると
共に、前記ギヤケース(39)に出力軸(46)を介し
てミッションケース(4)を連結させ、前後走行駆動軸
(47)(48)を介してミッションケース(4)に前
記各ケース(5)(7)を連結させ、植付駆動軸(4
9)を介してミッションケース(4)に植付ケース(2
0)を連結させるもので、主クラッチペダル(32)に
よって断続操作する主クラッチ(50)並びに減速ギヤ
(51)を介して入力プーリ(41)及び入力軸(4
5)及び出力軸(46)を連結させ、無段変速機構(4
3)及びギヤケース(39)を介してエンジン(2)出
力をミッションケース(4)に減速伝達させると共に、
ミッションケース(4)の主変速レバー(29)による
多段変速出力を前後輪(6)(8)及び植付部(15)
に伝達させるように構成している。
Further, as shown in FIGS. 4, 5 and 6, a gear case (39) through which the steering shaft (38) of the steering handle (14) is inserted is provided on the rear side of the engine (2), and the input / output is performed. Pulleys (40) (41) and belts (42)
Equipped with a continuously variable transmission mechanism (43) having an engine (2)
To the output shaft (44) of the gear case (39)
5) is connected via the continuously variable transmission mechanism (43), and the transmission case (4) is connected to the gear case (39) via the output shaft (46), and the front-rear traveling drive shafts (47) (48) are connected. ) Is connected to each of the cases (5) and (7) via the transmission case (4), and the planted drive shaft (4)
9) via the mission case (4) to the planted case (2)
0) is connected, and the input pulley (41) and the input shaft (4) are connected via the main clutch (50) which is intermittently operated by the main clutch pedal (32) and the reduction gear (51).
5) and the output shaft (46) are connected to each other, and the continuously variable transmission mechanism (4
3) and the gear case (39), the output of the engine (2) is decelerated and transmitted to the mission case (4), and
The multistage shift output by the main shift lever (29) of the mission case (4) is transmitted to the front and rear wheels (6) (8) and the planting part (15).
It is configured to be transmitted to.

【0010】また、テンションローラ(52)と、ロッ
ド(53)によって連結する出入力用カム(54)(5
5)と、各カム(54)(55)に当接させる出入力用
ローラ(56)(57)とを備え、出力用ローラ(5
6)を設ける取付板(58)をエンジン(2)側面に固
定させると共に、入力用ローラ(57)を設ける取付板
(59)を車体フレーム(3)の支持フレーム(60)
に固定させ、アクチュエータである変速モータ(61)
のネジ軸(62)に入力用カム(55)を連結させ、車
体フレーム(3)に取付ける前記モータ(61)の正逆
転制御によってロッド(53)を介して出入力用カム
(54)(55)を回転させ、出入力プーリ(40)
(41)幅を変えてベルト(42)の巻付け径を変化さ
せ、前記プーリ(40)(41)及びベルト(42)の
変速比を無段階に変更するように構成している。
Further, input / output cams (54) (5) connected to the tension roller (52) by a rod (53).
5) and input / output rollers (56) (57) that are brought into contact with the respective cams (54) (55), and output rollers (5
The mounting plate (58) provided with 6) is fixed to the side surface of the engine (2), and the mounting plate (59) provided with the input roller (57) is attached to the support frame (60) of the vehicle body frame (3).
Fixed to the actuator, the variable speed motor (61)
The input cam (55) is connected to the screw shaft (62) and the forward and reverse control of the motor (61) attached to the vehicle body frame (3) is performed via the rod (53) to output and input cams (54) (55). ) Is rotated and the input / output pulley (40) is rotated.
(41) The width is changed to change the winding diameter of the belt (42), and the gear ratios of the pulleys (40) (41) and the belt (42) are continuously changed.

【0011】さらに、図1、図7、図8に示す如く、前
記主クラッチ(50)の切操作によってオンになる主ク
ラッチスイッチ(63)と、ボンネット(9)後部の操
作パネルに取付けて走行速度を所定速度に増速させる増
速スイッチ(64)と、主変速レバー(29)の路上走
行切換を検出する路上走行スイッチ(65)と、副変速
レバー(30)の変速位置を検出する変速ポテンショメ
ータ(66)と、変速モータ(61)による出入力用カ
ム(54)(55)の変位量を検出するフィードバック
センサであるフィードバックポテンショメータ(67)
と、エンジン(2)の発電機をバッテリに接続させるレ
ギュレータ(68)とを備えると共に、マイクロコンピ
ュータで構成する走行変速制御回路(69)を設け、各
スイッチ(63)(64)(65)、各ポテンショメー
タ(66)(67)、レギュレータ(68)を前記制御
回路(69)に接続させている。
Further, as shown in FIGS. 1, 7 and 8, the main clutch switch (63) which is turned on by the disengagement operation of the main clutch (50) and the operation panel at the rear of the bonnet (9) are attached to the vehicle for traveling. A speed increase switch (64) for increasing the speed to a predetermined speed, a roadside travel switch (65) for detecting roadside switching of the main speed change lever (29), and a speed change for detecting the shift position of the auxiliary speed change lever (30). A feedback potentiometer (67) which is a feedback sensor for detecting the amount of displacement of the input / output cams (54) (55) by the potentiometer (66) and the speed change motor (61).
And a regulator (68) for connecting the generator of the engine (2) to the battery, a travel speed change control circuit (69) including a microcomputer, and switches (63) (64) (65), Each potentiometer (66) (67) and regulator (68) are connected to the control circuit (69).

【0012】また、増速及び減速回路(70)(71)
を介して前記制御回路(69)に変速モータ(61)を
接続させると共に、前記各回路(70)(71)に手動
スイッチ(72)を接続させ、副変速レバー(30)操
作または手動スイッチ(72)操作によって変速モータ
(61)を正逆転させ、無段変速機構(43)の変速制
御を行うもので、図9に示す如く、副変速レバー(3
0)の変速動作範囲である変速ポテンショメータ(6
6)の出力範囲を、フィードバックセンサ検出動作範囲
であるフィードバックポテンショメータ(67)の出力
範囲よりも大きく形成し、部品特性または取付け誤差な
どによりポテンショメータ(66)(67)出力がずれ
ても、各ポテンショメータ(66)(67)出力が同一
範囲内に存在し、変速モータ(61)を常に最大または
最小位置に至るまで作動させるように構成している。
Further, the speed-up and speed-down circuits (70) (71)
The transmission motor (61) is connected to the control circuit (69) via the switch, and the manual switch (72) is connected to each of the circuits (70) (71) to operate the auxiliary transmission lever (30) or the manual switch ( 72) The forward / reverse rotation of the transmission motor (61) is performed by operation to control the transmission of the continuously variable transmission mechanism (43). As shown in FIG.
Shift potentiometer (6)
The output range of 6) is made larger than the output range of the feedback potentiometer (67) which is the feedback sensor detection operation range, and even if the output of the potentiometer (66) (67) is deviated due to component characteristics or mounting error, each potentiometer (66) (67) The outputs are in the same range, and the variable speed motor (61) is always operated to reach the maximum or minimum position.

【0013】本実施例は上記の如く構成しており、図7
に示す如く、路上走行(高速前進)、作業走行である植
付走行(低速前進)、苗継(一時停止)、後進の切換を
主変速レバー(29)操作によって行うと共に、図8に
示す如く、植付部(15)の上昇及び下降(植付クラッ
チ切)、左右マーカの作用位置移動並びに植付クラッチ
入動作、低速乃至高速(前進)の無段変速副変速を、副
変速レバー(30)操作によって行う。
This embodiment is constructed as described above, and is shown in FIG.
As shown in FIG. 8, switching between road running (high speed forward), work running with planting (low speed forward), seedling joint (temporary stop), and reverse is performed by operating the main shift lever (29), and as shown in FIG. , Up and down of the planting part (15) (disengagement of the planting clutch), movement of the left and right markers to the operating position and engagement of the planting clutch, low-speed to high-speed (forward) continuously variable sub-shifts, the sub-shift lever (30 ) Do by operation.

【0014】また、図10のフローチャートに示す如
く、枕地などで主クラッチ(50)を切操作し、スター
タモータに直列に設けて安全スイッチとしても作用させ
る主クラッチスイッチ(63)がオンになったとき、増
速スイッチ(64)がオフのときは所定低速度まで変速
モータ(61)を自動的に減速作動させ、所定低速度に
維持する一方、増速スイッチ(64)がオンのときは前
記のオフ状態の所定低速度よりも一定幅だけ高速側位置
に変速モータ(61)を減速作動させ、前記所定低速度
よりも一定高速側の速度に維持する。
Further, as shown in the flowchart of FIG. 10, the main clutch (50) is turned off at a headland or the like, and the main clutch switch (63) provided in series with the starter motor and acting as a safety switch is turned on. When the speed increasing switch (64) is off, the speed change motor (61) is automatically decelerated to a predetermined low speed and maintained at the predetermined low speed, while when the speed increasing switch (64) is on. The speed change motor (61) is decelerated to a position higher than the predetermined low speed in the OFF state by a certain width to maintain the speed at a constant higher speed than the predetermined low speed.

【0015】また、主クラッチ(50)入で主クラッチ
スイッチ(63)がオフのとき、路上走行スイッチ(6
5)または増速スイッチ(64)がオンになると、所定
速度まで変速モータ(61)を自動的に増速作動させ、
所定速度で維持する。
When the main clutch (50) is on and the main clutch switch (63) is off, the road drive switch (6)
5) or when the speed increasing switch (64) is turned on, the speed change motor (61) is automatically speeded up to a predetermined speed,
Maintain at a predetermined speed.

【0016】さらに、前記各スイッチ(63)(64)
(65)がオフのとき、変速及びフィードバックの各ポ
テンショメータ(66)(67)入力を比較し、植付作
業状態での副変速レバー(30)の変速位置変更によっ
て変速モータ(61)を作動させ、無段変速機構(4
3)を制御して植付走行速度を無段階に変化させるもの
で、副変速レバー(30)の高速側操作によって増速す
るとき、パルス駆動によって変速モータ(61)を作動
させて増速動作を行わせる一方、前記レバー(30)の
低速側操作によって減速するとき、連続駆動によって変
速モータ(61)を作動させて減速動作を行わせる。
Further, each of the switches (63) (64)
When (65) is off, the inputs of the potentiometers (66) and (67) for gear shift and feedback are compared, and the gear shift motor (61) is operated by changing the gear shift position of the auxiliary gear shift lever (30) in the planting work state. , Continuously variable transmission (4
3) is controlled to change the planted traveling speed steplessly. When the sub gear shift lever (30) is operated at a high speed side to increase the speed, the speed change motor (61) is operated by pulse driving to increase the speed. On the other hand, when decelerating by operating the lever (30) on the low speed side, the deceleration operation is performed by operating the transmission motor (61) by continuous driving.

【0017】また、前記変速モータ(61)によって増
減速動作を行わせているとき、増速または減速の制御信
号が出力している状態でモータ(61)が停止してフィ
ードバックポテンショメータ(67)値が略一定になっ
たとき、前記ポテンショメータ(67)値をモータ(6
1)の最大または最小リミット位置として記憶させ、電
源オフによってリセットされるまでモータ(61)制御
のリミット値として使用し、逆方向の動作だけを行わせ
るようにモータ(61)を作動させる。
Further, when the speed change motor (61) is performing an acceleration / deceleration operation, the motor (61) is stopped while the acceleration or deceleration control signal is output, and the value of the feedback potentiometer (67) is changed. Is approximately constant, the potentiometer (67) value is set to the motor (6
It is stored as the maximum or minimum limit position in 1) and used as a limit value for controlling the motor (61) until it is reset by turning off the power, and the motor (61) is operated so that only the reverse operation is performed.

【0018】また、前記変速モータ(61)によって増
減速動作を行わせているとき、エンジン(2)運転時に
0ボルトとなり、かつエンジン(2)停止時に12ボル
トになるレギュレータ(68)の電圧変化を利用し、レ
ギュレータ(68)の12ボルト定電圧により検出する
エンジン(2)の停止によって変速モータ(61)の走
行変速制御を停止させ、手動スイッチ(72)操作など
全ての副変速動作を不可能にしているもので、前記各ス
イッチ(63)(64)(65)がオフで、エンジン
(2)運転中で、副変速レバー(30)によって変速ポ
テンショメータ(66)を作動させたとき、変速モータ
(61)による無段変速機構(43)制御が行われ、植
付走行速度が変更されるものである。
Further, when the speed change motor (61) is performing an acceleration / deceleration operation, the voltage change of the regulator (68) becomes 0 V when the engine (2) is operating and 12 V when the engine (2) is stopped. Of the sub-transmission operation such as the operation of the manual switch (72) by stopping the traveling speed change control of the speed change motor (61) by stopping the engine (2) detected by the 12-volt constant voltage of the regulator (68). When the switch (63) (64) (65) is off and the shift potentiometer (66) is operated by the auxiliary shift lever (30) while the engine (2) is operating, the shift is enabled. The continuously variable transmission mechanism (43) is controlled by the motor (61), and the planted traveling speed is changed.

【0019】さらに、図11は上記図8の変形例を示す
もので、図8において、副変速レバー(30)の副変速
位置で変速ポテンショメータ(66)の操作アームをレ
バー(30)に直接当接させて連動させていたが、図1
1の如く、前記レバー(30)にスライド板(73)の
一端側を連結させ、変速ポテンショメータ(66)の操
作アーム(74)のピン(75)をスライド板(73)
の長孔(76)に貫挿させ、バネ(77)及びストッパ
(78)によって所定位置に支持するアーム(74)を
レバー(30)の変速動作によりスライド板(73)を
介して作動させることも行える。なお、ストッパ(7
8)を省き、レバー(30)の全体動作とアーム(7
4)を連動させ、レバー(30)の変速域だけのポテン
ショメータ(66)出力を利用することも行える。
Further, FIG. 11 shows a modification of the above-mentioned FIG. 8, in which the operating arm of the shift potentiometer (66) directly contacts the lever (30) at the sub-shift position of the sub-shift lever (30). Although they were in contact with each other and linked, Figure 1
1, the one end side of the slide plate (73) is connected to the lever (30), and the pin (75) of the operation arm (74) of the transmission potentiometer (66) is connected to the slide plate (73).
Of the arm (74) which is inserted into the long hole (76) of the armature and is supported at a predetermined position by the spring (77) and the stopper (78) through the slide plate (73) by the shift operation of the lever (30). Can also be done. The stopper (7
8) is omitted, the entire operation of the lever (30) and the arm (7
4) can be interlocked and the output of the potentiometer (66) only in the shift range of the lever (30) can be used.

【0020】[0020]

【発明の効果】以上実施例から明らかなように本発明
は、無段変速機構(43)と、該無段変速機構(43)
の変速位置を検出するフィードバックセンサ(67)
と、前記無段変速機構(43)のアクチュエータ(6
1)を変速制御する変速レバー(30)を設ける移動農
機において、前記変速レバー(30)の変速動作範囲を
フィードバックセンサ(67)の検出動作範囲よりも大
きく形成したもので、変速レバー(30)の変速動作範
囲外にフィードバックセンサ(67)の検出動作範囲が
ずれるのを容易に防止でき、取付け誤差または部品特性
などを許容して変速レバー(30)の変速動作とフィー
ドバックセンサ(67)の検出動作を常に同一範囲内で
行わせることができ、前記アクチュエータ(61)を最
大乃至最小位置の間で適正に作動させて変速機能の向上
並びに制御動作の安定化などを容易に図ることができる
ものである。
As is apparent from the above embodiments, the present invention provides a continuously variable transmission mechanism (43) and the continuously variable transmission mechanism (43).
Sensor (67) for detecting the gear shift position of
And the actuator (6) of the continuously variable transmission mechanism (43).
In the mobile agricultural machine provided with the gear shift lever (30) for gear shift control of 1), the gear shift lever (30) has a gear shift operation range larger than the detection range of the feedback sensor (67). The detection operation range of the feedback sensor (67) can be easily prevented from deviating to the outside of the speed change operation range, and the speed change operation of the speed change lever (30) and the detection of the feedback sensor (67) are allowed by allowing an installation error or component characteristics. The operation can always be performed within the same range, and the actuator (61) can be appropriately operated between the maximum position and the minimum position to easily improve the shift function and stabilize the control operation. Is.

【0021】また、路上走行及び作業走行及び後進など
の切換を行う主変速レバー(29)と、作業走行速度を
切換える副変速レバー(30)を設ける移動農機におい
て、前記副変速レバー(30)によって変速制御する無
段変速機構(43)を設けたもので、作業速度だけを無
段変速によって設定でき、無段変速機構(43)の簡略
化並びに作業速度の適正化などを容易に行うことができ
るものである。
Further, in a mobile agricultural machine provided with a main speed change lever (29) for switching between road running, work running and reverse, and a sub speed changing lever (30) for switching the work running speed, the sub speed changing lever (30) is used. Since the continuously variable transmission mechanism (43) for controlling the speed change is provided, only the working speed can be set by the continuously variable transmission, so that the continuously variable transmission mechanism (43) can be simplified and the working speed can be optimized easily. It is possible.

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

【図1】走行変速制御回路図。FIG. 1 is a travel shift control circuit diagram.

【図2】乗用田植機の側面図。FIG. 2 is a side view of a passenger rice transplanter.

【図3】同平面図。FIG. 3 is a plan view of the same.

【図4】走行駆動部の平面図。FIG. 4 is a plan view of a traveling drive unit.

【図5】無段変速機構部の側面図。FIG. 5 is a side view of the continuously variable transmission mechanism.

【図6】同平面図。FIG. 6 is a plan view of the same.

【図7】主変速レバー部の平面図。FIG. 7 is a plan view of a main shift lever portion.

【図8】副変速レバー部の平面図。FIG. 8 is a plan view of an auxiliary shift lever portion.

【図9】ポテンショメータ出力線図。FIG. 9 is a potentiometer output diagram.

【図10】図1のフローチャート。10 is a flowchart of FIG.

【図11】副変速レバー部の側面図。FIG. 11 is a side view of the auxiliary shift lever portion.

【符号の説明】[Explanation of symbols]

(29) 主変速レバー (30) 副変速レバー (43) 無段変速機構 (61) 変速モータ(アクチュエータ) (67) フィードバックポテンショメータ(フィード
バックセンサ)
(29) Main transmission lever (30) Sub transmission lever (43) Continuously variable transmission mechanism (61) Transmission motor (actuator) (67) Feedback potentiometer (feedback sensor)

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】 無段変速機構と、該無段変速機構の変速
位置を検出するフィードバックセンサと、前記無段変速
機構のアクチュエータを変速制御する変速レバーを設け
る移動農機において、前記変速レバーの変速動作範囲を
フィードバックセンサの検出動作範囲よりも大きく形成
したことを特徴とする移動農機。
1. A mobile agricultural machine comprising a continuously variable transmission mechanism, a feedback sensor for detecting a shift position of the continuously variable transmission mechanism, and a shift lever for controlling a shift of an actuator of the continuously variable transmission mechanism. A mobile agricultural machine having an operation range formed to be larger than a detection operation range of a feedback sensor.
【請求項2】 路上走行及び作業走行及び後進などの切
換を行う主変速レバーと、作業走行速度を切換える副変
速レバーを設ける移動農機において、前記副変速レバー
によって変速制御する無段変速機構を設けたことを特徴
とする移動農機。
2. A mobile agricultural machine provided with a main speed change lever for switching between road running, work running and reverse, and an auxiliary speed change lever for changing a work speed, and a continuously variable speed change mechanism for controlling speed change by the auxiliary speed change lever. A mobile agricultural machine characterized by that.
JP17185792A 1992-06-05 1992-06-05 Moving agricultural machine Pending JPH05338463A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17185792A JPH05338463A (en) 1992-06-05 1992-06-05 Moving agricultural machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17185792A JPH05338463A (en) 1992-06-05 1992-06-05 Moving agricultural machine

Publications (1)

Publication Number Publication Date
JPH05338463A true JPH05338463A (en) 1993-12-21

Family

ID=15931073

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17185792A Pending JPH05338463A (en) 1992-06-05 1992-06-05 Moving agricultural machine

Country Status (1)

Country Link
JP (1) JPH05338463A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5857539A (en) * 1996-04-09 1999-01-12 Claas Kommanditgesellschaft Auf Aktien Automatic-steering apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5857539A (en) * 1996-04-09 1999-01-12 Claas Kommanditgesellschaft Auf Aktien Automatic-steering apparatus

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