JPH05336813A - Mobile farm machine - Google Patents
Mobile farm machineInfo
- Publication number
- JPH05336813A JPH05336813A JP17185992A JP17185992A JPH05336813A JP H05336813 A JPH05336813 A JP H05336813A JP 17185992 A JP17185992 A JP 17185992A JP 17185992 A JP17185992 A JP 17185992A JP H05336813 A JPH05336813 A JP H05336813A
- Authority
- JP
- Japan
- Prior art keywords
- speed
- potentiometer
- lever
- shift
- change
- 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
- 230000005540 biological transmission Effects 0.000 claims abstract description 46
- 230000035945 sensitivity Effects 0.000 description 7
- 241000209094 Oryza Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 3
- 210000000078 claw Anatomy 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Transplanting Machines (AREA)
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
- Gear-Shifting Mechanisms (AREA)
Abstract
Description
【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、特開平3−249477号公報に
示す如く、アクチュエータによって無段変速機構を作動
させてベルトの伝達速度を変更する技術があった。2. Description of the Related Art Conventionally, as disclosed in Japanese Patent Laid-Open No. 3-249477, there has been a technique in which a continuously variable transmission mechanism is operated by an actuator to change the transmission speed of a belt.
【0003】[0003]
【発明が解決しようとする課題】前記従来技術は、変速
レバーの操作量と走行速度変化が一定になるB特性に変
速レバーの変速ポテンショメータ出力特性を設定してい
たから、高速域で変速レバーの操作量の変化率に比べて
走行速度の変化率が小さくなるので、変速レバーの操作
感度と実際の走行速度の変化に差が生じ易く、低速域と
高速域とで変速レバー操作感覚を異ならせる必要がある
等の取扱い上の問題があった。In the above-mentioned prior art, since the shift potentiometer output characteristic of the shift lever is set to the B characteristic in which the change amount of the shift lever and the change in traveling speed are constant, the shift lever operation amount in the high speed range is set. Since the rate of change of the running speed is smaller than the rate of change of, the difference between the operation sensitivity of the gear shift lever and the actual change of the running speed is likely to be different, and it is necessary to make the feeling of gear shift lever operation different between the low speed range and the high speed range. There were some handling problems.
【0004】[0004]
【課題を解決するための手段】然るに、本発明は、変速
レバーと連動する変速ポテンショメータの出力に基づ
き、無段変速機構のアクチュエータを制御する移動農機
において、変速レバーの操作量と無段変速機構の走行速
度の変化率を略一定に保つ出力特性を前記変速ポテンシ
ョメータのアクチュエータ制御信号が有するように構成
したもので、変速レバー操作量と走行速度の変化率を略
一定に保つA特性に変速ポテンショメータの出力特性を
設定したから、全ての速度域で変速レバー操作感覚と一
致した走行速度を容易に得られ、従来のように低速域と
高速域とで変速レバー操作感覚を異ならせる必要がな
く、変速レバー操作性の向上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, in the mobile agricultural machine for controlling the actuator of the continuously variable transmission mechanism based on the output of the transmission potentiometer interlocked with the transmission lever, the operation amount of the continuously variable transmission mechanism and the continuously variable transmission mechanism. The actuator control signal of the shift potentiometer has an output characteristic for keeping the rate of change of the traveling speed substantially constant, and the shift potentiometer has the characteristic A for keeping the rate of change of the shift lever operation amount and the traveling speed substantially constant. Since the output characteristics are set, it is easy to obtain a running speed that matches the feeling of operating the shift lever in all speed ranges, and there is no need to make the feeling of operating the shift lever different in the low speed range and the high speed range as in the past. It is possible to easily improve the operability of the shift lever.
【0005】また、変速ポテンショメータのアクチュエ
ータ制御信号の特性を初期設定するプリセット部材を設
けたもので、プリセット部材によって走行速度の変化率
を任意に設定できるから、作業者の変速レバー操作感覚
に応じた走行速度変化を容易に得られ、作業条件または
作業の熟練度などに合せて変速レバーの操作感度を容易
に選定し得るものである。Further, a preset member for initially setting the characteristics of the actuator control signal of the shift potentiometer is provided, and the rate of change of the traveling speed can be arbitrarily set by the preset member, so that the operator can feel the operation of the shift lever. The change in traveling speed can be easily obtained, and the operation sensitivity of the speed change lever can be easily selected according to the working conditions or the skill level of the work.
【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)の操作量(ストローク)に対し変速ポテンショメー
タ(66)出力がA特性の曲線(実線)になるように該
ポテンショメータ(66)を形成し、副変速レバー(3
0)の操作量と無段変速機構(43)の走行速度の変化
率を略一定に保つ出力特性を前記変速ポテンショメータ
(66)の変速モータ(61)制御信号が有するように
構成し、副変速レバー(30)操作量と走行速度の変化
率を全副変速走行速度域で略一定に保つと共に、図1の
如く、変速ポテンショメータ(66)の変速モータ(6
1)制御信号の特性を初期設定するプリセット部材であ
る無段変速感度設定器(73)を設け、該設定器(7
3)によって変速ポテンショメータ(66)の出力特性
(B特性の常数など)を初期設定し、圃場など作業条件
または作業者の熟練度などに合せて副変速レバー(3
0)の操作感度を選定す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.
The potentiometer (66) is formed so that the output of the shift potentiometer (66) becomes the curve (solid line) of the A characteristic with respect to the operation amount (stroke) of (0), and the auxiliary shift lever (3).
0) and the output characteristic of keeping the change rate of the traveling speed of the continuously variable transmission mechanism (43) substantially constant, the shift motor (61) control signal of the shift potentiometer (66) is configured to have the output characteristic. The rate of change of the lever (30) operation amount and the traveling speed is kept substantially constant in the entire auxiliary shift traveling speed range, and as shown in FIG. 1, the transmission motor (6) of the transmission potentiometer (66) is used.
1) A continuously variable transmission sensitivity setting device (73) which is a preset member for initially setting the characteristics of the control signal is provided, and the setting device (7)
3), the output characteristic (constant number of B characteristic) of the transmission potentiometer (66) is initialized, and the auxiliary transmission lever (3) is adjusted according to the working conditions such as the field or the skill level of the operator.
The operation sensitivity of 0) is selected.
【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大動作力で変速モータ(6
1)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
によって高速動作で変速モータ(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 continuously change the planted traveling speed. When the auxiliary gearshift lever (30) is operated at a high speed side to increase the speed, the speed change motor (6
On the other hand, when deceleration is performed by operating the lever (30) on the low speed side, the speed change motor (61) is operated at high speed by continuous drive to perform the deceleration operation while activating 1).
【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、変速レバー(30)と連動する変速ポテンショメー
タ(66)の出力に基づき、無段変速機構(43)のア
クチュエータ(61)を制御する移動農機において、変
速レバー(30)の操作量と無段変速機構(43)の走
行速度の変化率を略一定に保つ出力特性を前記変速ポテ
ンショメータ(66)のアクチュエータ(61)制御信
号が有するように構成したもので、変速レバー(30)
操作量と走行速度の変化率を略一定に保つA特性に変速
ポテンショメータ(66)の出力特性を設定したから、
全ての速度域で変速レバー(30)操作感覚と一致した
走行速度を容易に得ることができ、従来のように低速域
と高速域とで変速レバー(30)操作感覚を異ならせる
必要がなく、変速レバー(30)操作性の向上などを容
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 controls the actuator (61) of the continuously variable transmission mechanism (43) based on the output of the transmission potentiometer (66) which is interlocked with the transmission lever (30). In the mobile agricultural machine, the actuator (61) control signal of the shift potentiometer (66) has an output characteristic that keeps the operation amount of the shift lever (30) and the rate of change of the traveling speed of the continuously variable transmission mechanism (43) substantially constant. Gearshift lever (30)
Since the output characteristic of the shift potentiometer (66) is set to the A characteristic that keeps the change rate of the operation amount and the traveling speed substantially constant,
It is possible to easily obtain a traveling speed that matches the operation feeling of the speed change lever (30) in all speed ranges, and it is not necessary to make the operation feeling of the speed change lever (30) different between the low speed range and the high speed range as in the conventional case. It is possible to easily improve the operability of the speed change lever (30).
【0021】また、変速ポテンショメータ(66)のア
クチュエータ(61)制御信号の特性を初期設定するプ
リセット部材(73)を設けたもので、プリセット部材
(73)によって走行速度の変化率を任意に設定できる
から、作業者の変速レバー(30)操作感覚に応じた走
行速度変化を容易に得ることができ、作業条件または作
業の熟練度などに合せて変速レバー(30)の操作感度
を容易に選定できるものである。Further, a preset member (73) for initializing the characteristics of the actuator (61) control signal of the shift potentiometer (66) is provided, and the preset member (73) can arbitrarily set the rate of change of the traveling speed. From this, it is possible to easily obtain a change in traveling speed according to the operator's feeling of operating the speed change lever (30), and it is possible to easily select the operation sensitivity of the speed change lever (30) according to the work conditions or the skill level of the work. It is a thing.
【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】変速ポテンショメータ出力線図。FIG. 9 is a shift 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.
(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) (66) 変速ポテンショメータ (73) 無段変速感度設定器(プリセット部材) (30) Auxiliary transmission lever (43) Continuously variable transmission mechanism (61) Transmission motor (actuator) (66) Transmission potentiometer (73) Continuously variable transmission sensitivity setting device (preset member)
Claims (2)
ータの出力に基づき、無段変速機構のアクチュエータを
制御する移動農機において、変速レバーの操作量と無段
変速機構の走行速度の変化率を略一定に保つ出力特性を
前記変速ポテンショメータのアクチュエータ制御信号が
有するように構成したことを特徴とする移動農機。1. In a mobile agricultural machine that controls an actuator of a continuously variable transmission mechanism based on an output of a gearshift potentiometer that is interlocked with a gearshift lever, the rate of change between the operation amount of the continuously variable transmission mechanism and the operation amount of the continuously variable transmission mechanism is made substantially constant. A mobile agricultural machine characterized in that the actuator control signal of the speed change potentiometer has an output characteristic to be maintained.
制御信号の特性を初期設定するプリセット部材を設けた
ことを特徴とする上記第1項記載の移動農機。2. The mobile agricultural machine according to claim 1, further comprising a preset member for initializing a characteristic of an actuator control signal of the transmission potentiometer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17185992A JP2934996B2 (en) | 1992-06-05 | 1992-06-05 | Rice transplanter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17185992A JP2934996B2 (en) | 1992-06-05 | 1992-06-05 | Rice transplanter |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP02707699A Division JP3364745B2 (en) | 1999-02-04 | 1999-02-04 | Rice transplanter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05336813A true JPH05336813A (en) | 1993-12-21 |
JP2934996B2 JP2934996B2 (en) | 1999-08-16 |
Family
ID=15931112
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17185992A Expired - Lifetime JP2934996B2 (en) | 1992-06-05 | 1992-06-05 | Rice transplanter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2934996B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002264683A (en) * | 2001-03-06 | 2002-09-18 | Tokai Rika Co Ltd | Shift device |
JP2014166192A (en) * | 2014-06-18 | 2014-09-11 | Yanmar Co Ltd | Rice transplanter |
-
1992
- 1992-06-05 JP JP17185992A patent/JP2934996B2/en not_active Expired - Lifetime
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002264683A (en) * | 2001-03-06 | 2002-09-18 | Tokai Rika Co Ltd | Shift device |
JP2014166192A (en) * | 2014-06-18 | 2014-09-11 | Yanmar Co Ltd | Rice transplanter |
Also Published As
Publication number | Publication date |
---|---|
JP2934996B2 (en) | 1999-08-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5335487A (en) | Engine speed control apparatus for a working vehicle | |
JP2005119466A (en) | Running transmission for working vehicle | |
JPH05338474A (en) | Movable agricultural machine | |
JP3306500B2 (en) | Control device for field work machine | |
JPH05336813A (en) | Mobile farm machine | |
JP3328752B2 (en) | Rice transplanter | |
JPH11315911A (en) | Mobile farm machine | |
JP3297754B2 (en) | Rice transplanter | |
JPH05338463A (en) | Moving agricultural machine | |
JPH05338478A (en) | Mobile agricultural machine | |
JPH05338477A (en) | Mobile agricultural machine | |
JP2834360B2 (en) | Work vehicle travel control device | |
JP4054613B2 (en) | Work vehicle | |
JP2004114783A (en) | Transmission of powered vehicle | |
JP2582918Y2 (en) | Moving agricultural machine | |
JP3354809B2 (en) | Paddy working machine | |
JP4608838B2 (en) | Rice transplanter | |
JPH1137284A (en) | Automatic transmission of agricultural working vehicle | |
JP3582299B2 (en) | Farm work machine | |
JPH0746091Y2 (en) | Steering device for mobile agricultural machinery | |
JP4517417B2 (en) | Agricultural machine | |
JPH0968264A (en) | Working machine for riding | |
JP4243770B2 (en) | Rice transplanter | |
JP4667615B2 (en) | Vehicle speed change device | |
JPH109375A (en) | Working machine |