WO2009110280A1 - Transplanteur de riz à conducteur porté - Google Patents

Transplanteur de riz à conducteur porté Download PDF

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Publication number
WO2009110280A1
WO2009110280A1 PCT/JP2009/051982 JP2009051982W WO2009110280A1 WO 2009110280 A1 WO2009110280 A1 WO 2009110280A1 JP 2009051982 W JP2009051982 W JP 2009051982W WO 2009110280 A1 WO2009110280 A1 WO 2009110280A1
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WO
WIPO (PCT)
Prior art keywords
traveling
pedal
shift
shift pedal
speed change
Prior art date
Application number
PCT/JP2009/051982
Other languages
English (en)
Japanese (ja)
Inventor
誠 井上
崇 中嶌
圭志 絹田
Original Assignee
ヤンマー株式会社
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 ヤンマー株式会社 filed Critical ヤンマー株式会社
Priority to KR1020167002185A priority Critical patent/KR101716724B1/ko
Priority to CN200980107746XA priority patent/CN101960182A/zh
Publication of WO2009110280A1 publication Critical patent/WO2009110280A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C11/00—Transplanting machines
    • A01C11/003—Transplanting machines for aquatic plants; for planting underwater, e.g. rice
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/02—Selector apparatus
    • F16H59/04—Ratio selector apparatus
    • F16H59/06—Ratio selector apparatus the ratio being infinitely variable
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
    • F16H61/38—Control of exclusively fluid gearing
    • F16H61/40—Control of exclusively fluid gearing hydrostatic
    • F16H61/42—Control of exclusively fluid gearing hydrostatic involving adjustment of a pump or motor with adjustable output or capacity
    • F16H61/437—Pump capacity control by mechanical control means, e.g. by levers or pedals

Definitions

  • the present invention relates to a riding type rice transplanter in which a seedling planting device is attached to the rear or front of a traveling machine body. More specifically, the present invention relates to a riding type rice transplanter in which travel speed is changed with a step-type shift pedal.
  • the vehicle speed is generally changed by adjusting the fuel injection amount, but the engine of the rice transplanter not only runs but also drives the seedling planting device, so the engine output changes a lot. Therefore, the vehicle speed is changed by controlling the traveling speed change mission.
  • Patent Document 1 discloses mechanically interlocking and connecting a transmission lever in a traveling transmission transmission and a stepping type transmission pedal provided in a driving operation unit with a rod or the like.
  • the shift pedal when the shift pedal is depressed, the shift mission is in an accelerated state, and when the shift pedal is released (when the shift pedal returns and moves), the shift mission is in a decelerated state.
  • Patent Document 1 since the shift pedal is mechanically connected to the shift lever of the traveling shift mission by a rod or the like, the movement of the shift pedal is immediately transmitted to the traveling shift mission, and the vehicle travels by depressing the shift pedal. There has been a concern that the aircraft may suddenly start or accelerate, or the traveling aircraft may suddenly decelerate or stop suddenly when the shift pedal is depressed. That is, there is a concern that the response follow-up of the movement of the traveling transmission mission with respect to the movement of the shift pedal is too sensitive.
  • the traveling vehicle body suddenly decelerates or stops suddenly, the traveling vehicle body is shifted laterally and becomes easy to meander.
  • the resistance of the shift lever in the traveling shift mission acts as a resistance to the movement of the shift pedal, which greatly increases the depression of the shift pedal.
  • a shift operability and a driving feeling are deteriorated due to a so-called kickback phenomenon in which an impact or a load when the shift lever is operated is transmitted to the shift pedal.
  • the object of the present invention is to solve these problems related to gear shifting in a riding type rice transplanter.
  • the first invention is the configuration of the most superordinate concept, and includes a traveling machine body on which an engine is mounted, and a seedling planting device that is attached to a rear portion of the traveling machine body so that the height can be adjusted.
  • the airframe is provided with a driving operation unit having a seat, a traveling wheel, a traveling speed change transmission that transmits the engine power to the traveling wheel by shifting, and a stepping type speed change pedal for changing the traveling speed.
  • the traveling shift mission is controlled by a power actuator that operates in response to the movement of the pedal.
  • detection means for detecting the stepping movement and the return movement of the shift pedal as electrical signals.
  • the detection means and the actuator are configured so that the detection means When the shift pedal is detected, the actuator increases the travel shift mission, and when the detection means detects the shift pedal return movement, the actuator decelerates the travel shift mission. Yes.
  • the detecting means can detect the amount of movement of the shift pedal per unit time, while the actuator performs a traveling shift transmission so that the change in vehicle speed per unit time can be adjusted.
  • a controller that can be controlled and that can adjust the relationship between the shift amount of the shift pedal per unit time and the rate of change of the vehicle speed is interposed between the detection means and the actuator.
  • an electric motor is adopted as the actuator.
  • a fifth invention is a subordinate concept of the first to fourth inventions.
  • the fifth invention further includes a brake mechanism that provides resistance to rotation of the traveling wheel, and the traveling speed change mission.
  • a clutch mechanism for switching output to the traveling wheel, and one actuating member for simultaneously switching the brake mechanism and the clutch mechanism.
  • the actuating member turns on the brake mechanism and turns off the clutch mechanism.
  • the travel stop state can be switched to the travel state by turning off the brake mechanism and turning on the clutch mechanism.
  • the operating member and the shift pedal are in a stopped state when the shift pedal is not depressed, and the actuating member is in a traveling state when the shift pedal is depressed. It is interlocked so that it becomes.
  • a stepping type brake pedal is provided in the driving operation unit of the traveling machine body, and the brake pedal and the actuating member are configured so that the brake pedal is depressed when the brake pedal is depressed.
  • the actuating member is interlocked so that the relationship with the shift pedal is cut off and the operation is stopped.
  • the traveling shift mission can be prevented from responding sensitively to the shift pedal movement. Accordingly, it is possible to prevent sudden start and acceleration due to depression of the shift pedal, and as a result, it is possible to prevent or significantly suppress the seedling from being deeply planted by preventing the traveling machine body from turning forward. In addition, since sudden stop and sudden deceleration due to the return movement of the shift pedal can be prevented, lateral slippage of the traveling machine body can be prevented or significantly reduced.
  • the movement of the shift pedal can be transmitted to the actuator by a mechanical mechanism.
  • adopting an electrical detection means as in the second invention is advantageous in terms of design because an interlocking member is not required.
  • the speed change of the traveling machine body can be smoothed to allow the traveling machine body to travel stably, and as a result, the effects of preventing deep planting and preventing lateral slippage can be further promoted.
  • the actuator such as hydraulic motors and electromagnetic solenoids can be used as the actuator.
  • an electric motor preferably a stepping motor
  • complicated control is possible with a simple structure. It becomes possible. Accordingly, the fourth invention is a preferred embodiment in the present invention.
  • the clutch mechanism when the operator removes his / her foot from the speed change pedal, the clutch mechanism is turned off and the power transmission to the running wheel is cut off, and at the same time the brake mechanism is turned on and the running wheel stops rotating.
  • the traveling machine body is automatically and reliably stopped, and the operability of the rice transplanter can be improved.
  • FIG. 5 is an enlarged sectional view taken along line VV in FIG. 4.
  • FIG. 6 is an enlarged sectional view taken along line VI-VI in FIG. 4. It is a principal part enlarged view of FIG. It is a figure which shows the relationship between the moving amount of a speed-change pedal, and the change rate of travel speed.
  • reference numeral 1 denotes a passenger type rice transplanter.
  • This riding type rice transplanter 1 is composed of a traveling machine body 2 and a conventionally known multi-row planting seedling planting device 3 that is mounted on the rear part so as to be movable up and down.
  • the traveling machine body 2 includes a pair of left and right front wheels 5 Similarly, a vehicle body frame 4 supported by a pair of left and right rear wheels 6 is provided.
  • the vehicle body frame 4 in the traveling machine body 2 is equipped with an engine 7 and a traveling speed change transmission 8 for appropriately transmitting power from the engine 7 to the front and rear wheels 5 and 6.
  • the traveling machine body 2 travels forward in the direction of arrow A by four-wheel drive.
  • a driving operation unit 9 including a steering handle 10 and a seat 11 is provided on the upper surface of the vehicle body frame 4 in the traveling machine body 2, and the right side of the steering handle 10 on the floor surface of the driving operation unit 9 is provided.
  • the part is provided with a stepping-type shift pedal (accelerator pedal) 12 in the forward direction and a stepping-type brake pedal 13 in the same direction in the left-right direction.
  • These pedals 12 and 13 are rotatably attached to the vehicle body frame 4.
  • the traveling transmission gear 8 includes an HST (hydrostatic) continuously variable transmission mechanism 14.
  • the HST continuously variable transmission mechanism 14 includes a variable hydraulic pump 15 driven by power from the engine 7 and a hydraulic motor 16 driven by hydraulic pressure from the hydraulic pump 15. By changing the inclination angle of the swash plate 15a in the hydraulic pump 15 with the speed change lever 17, the travel speed of the travel machine body 2 is continuously variable.
  • the speed change lever 17 is connected to spring means for biasing the speed change lever 17 in the deceleration direction.
  • the travel transmission mission 8 is provided with a clutch mechanism 18 for turning on / off (interrupting) power transmission to the wheels 5 and 6, and A brake mechanism 19 for braking the wheels 5 and 6 is provided.
  • the traveling transmission mission 8 is provided with a rotary operation shaft 20 for the brake mechanism 19, and the clutch mechanism 18 is connected to one operating member 21 fixed to the operation shaft 20 by a wire or the like. ing.
  • the brake mechanism 19 is on and the clutch mechanism 18 is off.
  • the brake mechanism 19 is OFF and the clutch mechanism 18 is ON.
  • the one actuating member 21 or the operation shaft 20 is provided with spring means (not shown) for urging the actuating member 21 to rotate in the direction of the arrow B.
  • a detecting means 24 for detecting a stepping operation and a stepping release operation (described later in detail) of the speed change pedal 12 is provided, while a fan gear 25 is provided at the left end of the speed change operating shaft 22. Is fixed.
  • an arm 26 is fixed to the speed change operation shaft 22, and a front end of a speed change rod rod 27 extending rearward is pivotally attached to the tip of the arm 26. Further, a long groove hole 27a having an appropriate length L is formed at the rear end of the speed change rod rod 27. The long groove hole 27a is provided at the front end of the speed change lever 17 in the continuously variable transmission mechanism 14 of the traveling speed change transmission 8. The pin 17a is slidably fitted and engaged.
  • the continuously variable transmission mechanism 14 is in a state where little power is transmitted when the speed change rod shaft 27 does not rotate and the speed change rod rod 27 does not move rearward.
  • the speed change rod rod 27 is rotated in the counterclockwise direction indicated by the arrow C in FIG. 6 and moves backward, the amount of movement exceeds the length L of the long groove hole 27a.
  • the traveling speed is increased steplessly in proportion to the backward movement.
  • the continuously variable speed change mechanism 14 turns to deceleration, and the running speed is stepless. Will slow down.
  • the fan gear 25 meshes with a pinion 29 that is rotationally driven by an electric actuator (for example, an electric motor) 28. Therefore, when the sector gear 25 is rotated forward and backward by the electric actuator 28, the speed change operation shaft 22 rotates forward and backward in the counterclockwise direction indicated by the arrow C and the clockwise direction indicated by the arrow D.
  • an electric actuator for example, an electric motor
  • a shift pedal shaft 30 extending in parallel with the shift operation shaft 22 is rotatably supported at a right end portion of the shift operation shaft 22 (the shift pedal shaft 30 is attached to the vehicle body frame 4). .)
  • the speed change pedal shaft 30 is interlocked with the speed change pedal 12 via an interlock mechanism 31 so that the speed change pedal 12 is tilted against the spring means from a posture generated by a spring means (not shown).
  • the pedal is depressed (when the pedal is depressed)
  • the shift pedal shaft 30 rotates in the clockwise direction indicated by an arrow E.
  • the shift pedal shaft 30 rotates in the counterclockwise direction indicated by the arrow F.
  • the detection means 24 disposed at the right end of the speed change operation shaft 22 includes a box 24a fixed to the speed change operation shaft 22, a rotor 24b rotatably provided on the box 24a, and a radially outward position from the rotor 24b.
  • a bifurcated arm 24c protruding in the direction and a pair of switches 24d and 24e provided on both sides of the bifurcated arm 24c in the box 24a are provided.
  • the bifurcated arm 24c is engaged with the tip of an arm 32 projecting from the speed change pedal shaft 30. For this reason, the bifurcated arm 24c and the rotor 24b are moved by an arrow in the stepping operation on the speed change pedal 12. It rotates in the counterclockwise direction indicated by E ′.
  • one switch 24d is switched from OFF to ON.
  • the bifurcated arm 24c and the rotor 24b rotate clockwise as indicated by the arrow F ', and the other switch 24e is turned from OFF to ON. Switch to.
  • reference numeral 33 denotes a controller.
  • the controller 33 uses the signals in the switches 24d and 24e of the detection means 24 as input signals, changes the input signals as appropriate, and outputs instructions to the electric actuator 28.
  • the switches 24d When one switch 24d of 24e is turned from OFF to ON, the electric actuator 28 is driven and the speed change operating shaft 22 rotates in the direction of arrow C via the sector gear 25, whereby the speed change rod rod 27 However, it moves backward as shown by the solid line arrow G in FIGS. Conversely, when the other switch 24e of the switches 24d and 24e is turned from OFF to ON, the speed change rod rod 27 moves forward as indicated by a dotted arrow H in FIGS.
  • a receiving piece 21a is integrally provided on one operating member 21 for both the clutch mechanism 18 and the brake mechanism 19, and the speed change rod rod 27 is slidable on the receiving piece 21a. It penetrates.
  • a stopper piece 27b that contacts the receiving piece 21a is provided at the rear end of the speed change rod rod 27. For this reason, when the speed change rod 22 does not rotate and the speed change rod rod 27 does not move backward (that is, when the speed change pedal 12 is not depressed), the one actuating member 21 is The stopper piece 27b is held in a stopped state in which the brake mechanism 19 is turned on and the clutch mechanism 18 is turned off.
  • the brake pedal 13 provided side by side with the shift pedal 12 is connected to a brake shaft 34 that is rotatably supported on the vehicle body frame 4, and the brake shaft 34 rotates when the brake pedal 13 is depressed.
  • An arm 35 is fixed to the brake shaft 34, and a brake rod rod 36 extending rearward is connected to the tip of the arm 35.
  • a locking piece 21b provided on the one actuating member 21 is slidably penetrated, and a stopper 36a is provided at the rear end of the brake rod rod 36. Therefore, in a state where the brake pedal 13 is not depressed, the one actuating member 21 can freely operate from a stopped state (position indicated by a solid line in FIG.
  • the one actuating member 21 is in a stop state, for example, shown by a solid line in FIG. 7, and the power transmission cutoff state in which the brake mechanism 19 is ON and the clutch mechanism 18 is OFF. Therefore, the traveling machine body 2 does not travel.
  • the shift pedal shaft 30 first rotates in the direction of arrow E in FIG. 5, and the bifurcated arm 24c and the rotor 24b in the detection means 24 are moved to the arrow based on this rotation.
  • E ′ By rotating in the direction of E ′, one of the switches 24d and 24e in the detecting means 24 is switched from OFF to ON, so that the electric actuator 28 is instructed by the controller 33.
  • the speed change operation shaft 22 is rotated in the direction of arrow C.
  • the speed change rod rod 27 starts to move backward as indicated by a solid arrow G in FIG.
  • the rearward movement of the speed change rod rod 27 is continued by continuing the depressing operation of the speed change pedal 12, and when the rearward movement exceeds the length L of the long groove hole 27a, the speed change lever 17 rotates rearward.
  • the HST type continuously variable transmission mechanism 14 operates in a power transmission state. As a result, the traveling machine body 2 starts traveling.
  • the traveling speed of the traveling machine body 2 is proportional to the amount of further rearward movement of the speed change rod rod 27 (that is, the amount of depression of the speed change pedal 12).
  • the controller 33 continues the rotation of the speed change operation shaft 22 in the direction of the arrow C by the electric actuator 28, so that one switch 24d in the detecting means 24 is turned on. From the ON state to the OFF state, the instruction of the controller 33 stops the rotation of the speed change operation shaft 22 in the direction of the arrow C by the electric actuator 28. As a result, the speed change rod rod 27 is moved backward. Stop at that position. Accordingly, the traveling speed of the traveling machine body 2 is maintained at a speed corresponding to the depression position of the shift pedal 12.
  • the forward movement of the speed change rod rod 27 causes the speed change lever 17 to rotate rearward and the HST type continuously variable speed change mechanism 14 to operate in a decelerating state. Accordingly, the travel speed of the traveling machine body 2 is reduced.
  • the start and acceleration by depressing the shift pedal 12 is operated by the actuator 28 to accelerate the traveling shift transmission 8 via the detection means 24 for detecting the depression of the shift pedal 12 and the controller 33.
  • decelerating and stopping by depressing the shift pedal 12 is also performed by operating the traveling shift transmission 8 to decelerate with the actuator 28 via the detecting means 24 and the controller 33. Since the detecting means 24 and the actuator 28 exist between the speed change pedal 12 and the travel speed change transmission 8, sudden acceleration or sudden start by sudden depression of the speed change pedal 12 or sudden return of the speed change pedal 12 is possible. It is possible to avoid sudden deceleration or sudden stop.
  • the depressing operation force of the shifting pedal 12 can be reduced, and further, when the shifting pedal 12 is operated, the shifting of the traveling transmission mission 8 is performed. It can be avoided that the load and impact of the lever 17 are transmitted to the shift pedal 12 as so-called kickback.
  • FIG. 8 is a diagram illustrating the relationship between the operation amount S of the shift pedal 12 and the shift amount W of the traveling speed, and the relationship is a linear straight line X indicated by a solid line or a downward convexity indicated by a two-dot chain line. Or a quadratic curve Y.
  • the unit shift amount ⁇ W of the traveling speed with respect to the unit operation amount ⁇ S of the shift pedal 12 is set to be linearly proportional over the entire region, Under the relationship of the downward convex quadratic curve Y shown, the unit shift amount of the traveling speed with respect to the unit operation amount ⁇ S of the shift pedal 12 is smaller than the relationship of X over the entire region, but the depression operation of the shift pedal 12 is performed. It is set to be the smallest and gradually increase in the initial stage.
  • the amount by which the shift pedal 12 is depressed can be calculated by measuring the time during which one switch 24d of the detecting means 24 is ON. Further, the return displacement amount of the shift pedal 12 can be calculated by measuring the time during which the other switch 24e in the detecting means 24 is ON.
  • the detecting unit 24 may have a sensor function for directly detecting the amount of displacement (displacement angle) of the shift pedal 12.
  • the relationship between X and Y can also be realized by a cam.
  • the speed increase rate of the traveling speed becomes moderate at the initial stage of the depressing operation of the shift pedal 12 (when starting), and at the end of the depressing operation of the shift pedal 12 (when stopping). Since the speed reduction rate of the running speed can be made gentle, the effects of preventing deep planting at the start and preventing lateral slippage at the stop are further promoted.
  • the primary straight line X is not limited to the primary straight line X or the downward convex quadratic curve Y.
  • the shape of the downward convex quadratic curve Y can be changed, or can be made an upward convex quadratic curve, and when the shift pedal 12 is depressed (starting), the depression is released. It can be set to be a linear or quadratic curve that differs depending on the operation (when stopped).
  • the drive rotational speed of the engine 7 is automatically changed according to the speed change operation of the traveling speed change mission 8, and this point is illustrated in FIG.
  • the sector gear 25 is provided with a cam groove 37 extending in the circumferential direction.
  • the cam groove 37 has a start end (one end) 37 a that is rotated by the sector gear 25.
  • the terminal (the other end) 37b is located at a portion having a small radius R2 from the speed change operation shaft 22, and the cam groove 37 is located at a position having a large radius R1 from the speed change operation shaft 22 as a center.
  • the sector gear 25 is inclined so as to gradually approach the center of rotation toward the direction of rotation of the sector gear 25 in the direction of arrow C (that is, the direction of rotation that increases the traveling speed).
  • the cam arm 37 is slidably engaged with the tip of a first arm 39 projecting from a horizontal shaft 38 rotatably supported on the vehicle body frame 4, while being fixed to the horizontal shaft 38.
  • the two arms 40 and the accelerator lever 7a of the engine 7 are connected by a wire 41 or the like.
  • the rotational speed of the engine 7 can be arbitrarily changed by manually rotating the accelerator lever 7a.
  • the present invention can be applied to a riding type rice transplanter to improve its usefulness, and therefore has industrial applicability.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
  • Gear-Shifting Mechanisms (AREA)
  • Transplanting Machines (AREA)
  • Transportation (AREA)
  • Braking Elements And Transmission Devices (AREA)

Abstract

Transplanteur de riz à conducteur porté comportant un châssis mouvant (2) doté de roues (5, 6) de circulation entraînées par un moteur (7), un dispositif (3) de repiquage de plants installé à l'arrière du châssis mouvant (2), une transmission (8(14)) de circulation pour les roues (5, 6) de circulation, et une pédale (12) de changement de vitesses installée au niveau de la partie (9) de commandes de conduite du châssis mouvant. Le transplanteur de riz à conducteur porté comporte en outre un actionneur (28) destiné à opérer les changements de vitesses de la transmission de circulation et un moyen (24) de détection servant à détecter l'action d'enfoncement et l'action de relâchement de la pédale (12) de changement de vitesses. L'actionneur (28) fait fonctionner la transmission (8(14)) de circulation dans le sens d'une augmentation de vitesse lorsque le dispositif (24) de détection détecte l'action d'enfoncement de la pédale de changement de vitesses, et fait fonctionner la transmission (8(14)) de circulation dans le sens d'une diminution de vitesse lorsque le dispositif (24) de détection détecte l'action de relâchement de la pédale (12) de changement de vitesses.
PCT/JP2009/051982 2008-03-05 2009-02-05 Transplanteur de riz à conducteur porté WO2009110280A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020167002185A KR101716724B1 (ko) 2008-03-05 2009-02-05 승용형 이앙기
CN200980107746XA CN101960182A (zh) 2008-03-05 2009-02-05 乘用型种植机

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008-055169 2008-03-05
JP2008055169A JP5497268B2 (ja) 2008-03-05 2008-03-05 乗用型田植機における走行操作装置

Publications (1)

Publication Number Publication Date
WO2009110280A1 true WO2009110280A1 (fr) 2009-09-11

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JP (1) JP5497268B2 (fr)
KR (2) KR101590434B1 (fr)
CN (3) CN101960182A (fr)
WO (1) WO2009110280A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011064275A (ja) * 2009-09-17 2011-03-31 Yanmar Co Ltd 乗用型農作業機
JP2011194923A (ja) * 2010-03-17 2011-10-06 Yanmar Co Ltd 乗用型農作業機
JP2011196399A (ja) * 2010-03-17 2011-10-06 Yanmar Co Ltd 乗用型農作業機
WO2012036280A1 (fr) * 2010-09-17 2012-03-22 ヤンマー株式会社 Repiqueuse de riz
JP2012062873A (ja) * 2010-09-17 2012-03-29 Yanmar Co Ltd 田植機
JP2012082777A (ja) * 2010-10-13 2012-04-26 Yanmar Co Ltd 田植機

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JP5724189B2 (ja) * 2010-03-08 2015-05-27 株式会社ニコン 変倍光学系、光学装置
JP6438368B2 (ja) * 2015-09-18 2018-12-12 ヤンマー株式会社 作業車両
CN105340439B (zh) * 2015-11-25 2018-02-02 云南烟草机械有限责任公司 一种多功能履带式烟草种植管理作业车
KR101956598B1 (ko) * 2018-02-05 2019-06-24 동양물산기업 주식회사 전동제어에 의한 제동장치를 구비하는 농기계

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JPH0751983B2 (ja) * 1989-03-23 1995-06-05 株式会社クボタ 田植機の車速制御装置
JPH11315911A (ja) * 1999-02-04 1999-11-16 Yanmar Agricult Equip Co Ltd 移動農機
JP2004019890A (ja) * 2002-06-20 2004-01-22 Yanmar Agricult Equip Co Ltd 作業車

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JP4116199B2 (ja) * 1999-06-30 2008-07-09 ヤンマー農機株式会社 田植機
JP2001275416A (ja) * 2000-03-30 2001-10-09 Kubota Corp 水田作業機
JP4106217B2 (ja) 2002-01-28 2008-06-25 ヤンマー農機株式会社 ブレーキ及びクラッチ操作機構
JP4095357B2 (ja) 2002-06-20 2008-06-04 ヤンマー農機株式会社 田植機
JP4142473B2 (ja) 2003-01-10 2008-09-03 ヤンマー農機株式会社 走行速度保持機構

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Publication number Priority date Publication date Assignee Title
JPH0751983B2 (ja) * 1989-03-23 1995-06-05 株式会社クボタ 田植機の車速制御装置
JPH11315911A (ja) * 1999-02-04 1999-11-16 Yanmar Agricult Equip Co Ltd 移動農機
JP2004019890A (ja) * 2002-06-20 2004-01-22 Yanmar Agricult Equip Co Ltd 作業車

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011064275A (ja) * 2009-09-17 2011-03-31 Yanmar Co Ltd 乗用型農作業機
JP2011194923A (ja) * 2010-03-17 2011-10-06 Yanmar Co Ltd 乗用型農作業機
JP2011196399A (ja) * 2010-03-17 2011-10-06 Yanmar Co Ltd 乗用型農作業機
WO2012036280A1 (fr) * 2010-09-17 2012-03-22 ヤンマー株式会社 Repiqueuse de riz
JP2012062873A (ja) * 2010-09-17 2012-03-29 Yanmar Co Ltd 田植機
CN103109060A (zh) * 2010-09-17 2013-05-15 洋马株式会社 插秧机
CN103109060B (zh) * 2010-09-17 2016-06-15 洋马株式会社 插秧机
JP2012082777A (ja) * 2010-10-13 2012-04-26 Yanmar Co Ltd 田植機

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KR20100124722A (ko) 2010-11-29
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JP5497268B2 (ja) 2014-05-21
CN101960182A (zh) 2011-01-26
JP2009210063A (ja) 2009-09-17
CN104604398A (zh) 2015-05-13
KR101716724B1 (ko) 2017-03-15
CN104110492A (zh) 2014-10-22

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