JP2009210063A - Traveling operation device for riding type rice transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate shift-operation of traveling speed of a riding type rice transplanter comprising a traveling machine body 2 having traveling wheels 5, 6 to be driven by an engine 7, a seeding planting device 3 installed at the rear part, a traveling transmission 8 for the traveling wheels, and a gear shift pedal 12 installed at an operation control part 9 of the traveling machine body. <P>SOLUTION: A traveling operation device comprises an actuator 28 for shift-operating the traveling transmission, and a detection means 24 for detecting the depressing operation and the releasing operation of the gear shift pedal. The actuator 28 operates the traveling transmission to increase a speed when the detection means detects the depressing operation of the gear shift pedal, and operates the traveling transmission to reduce a speed when the detection means detects the releasing operation of the gear shift pedal. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an apparatus for shifting a traveling speed of a riding-type rice transplanter configured by mounting a seedling planting device at the rear of a traveling machine body with a foot-operated shift pedal.

In Patent Document 1 as a prior art, in the riding-type rice transplanter having the above-described configuration, a gap between a shift lever in a traveling shift transmission that performs shifting of the traveling and a foot-operated shift pedal provided in a driving operation unit is as follows. By mechanically interlocking with a rod or the like, the shifting mission operates to increase the traveling speed by depressing the shift pedal, and the shifting mission increases the traveling speed by releasing the depressing operation of the shifting pedal. It is described that it is configured to operate at a reduced speed to improve its operability.
JP 2003-220933 A

  However, as in the prior art, when the shift lever in the traveling shift transmission and the stepped shift pedal are mechanically connected by a rod or the like, the structure is simple. On the other hand, since the operation of the shift pedal is transmitted immediately to the traveling shift mission without delay, the traveling vehicle suddenly starts or accelerates by the depression of the shift pedal, and the depressing release operation of the shift pedal is performed. Suddenly decelerate or stop.

  When the vehicle starts suddenly or accelerates rapidly, the front part of the traveling aircraft floats up and the rear seedling planting device is lowered, causing a problem that the seedling planting depth in the field scene becomes deeper than a predetermined value. Further, when the vehicle suddenly decelerates or stops suddenly, a problem arises that the traveling machine body oscillates laterally.

  Further, in the configuration of the prior art, since the shift lever and the shift pedal in the traveling shift transmission are mechanically connected by a rod or the like, not only the operation of depressing the shift pedal becomes heavy, but also the shift lever is shifted. The impact or load when operating is transmitted to the shift pedal as so-called kickback, which causes a problem that the shift operability and the operation filling are lowered.

  An object of the present invention is to provide a traveling operation device that solves these problems.

In order to achieve this technical problem, claim 1
“From a traveling vehicle having a traveling wheel driven by an engine, a seedling planting device attached to the rear, a traveling transmission mission for the traveling wheel, and a foot-operated transmission pedal provided in a driving operation unit in the traveling vehicle body In the riding type rice transplanter consisting of
An actuator for shifting the travel transmission mission; and a detecting means for detecting a depressing operation of the shift pedal and a depressing release operation from the depressed state; The travel shift transmission is operated to increase the speed by detecting this, and the travel shift mission is operated to decelerate by detecting the depression release operation on the shift pedal by the detecting means. "
It is characterized by that.

Claim 2
“In the first aspect of the present invention, a controller for controlling the operation of the actuator with the detection by the detection means as an input is provided, and the unit shift amount of the traveling speed with respect to the unit operation amount in the shift pedal can be changed by the controller. It is configured."
It is characterized by that.

Claim 3
“In the description of claim 1 or 2, the brake mechanism and the clutch mechanism for the traveling wheel are provided, and further, with one actuating member, the brake mechanism is turned on and the clutch mechanism is turned off. The brake mechanism is turned off and the clutch mechanism is turned on. The operating member is in the stop state when the shift pedal is not depressed, and the speed change operation is performed. When the pedal is depressed, the vehicle is in the running state. "
It is characterized by that.

Claim 4
“In the third aspect of the present invention, the actuating member has priority over the shift pedal by depressing the brake pedal to a foot-operated brake pedal provided in a driving operation portion of the traveling machine body. It ’s related to being stopped. ”
It is characterized by that.

  According to the first aspect of the present invention, when the shift pedal is depressed, the depressing operation is detected by the detecting means, and the actuator is activated in response to the detection, and the travel shift transmission is accelerated by the activation of the actuator. On the other hand, when the depressing operation is performed so that the shift pedal is depressed, the depressing operation is detected by the detecting means, and the actuator is activated in response to the detection, and the travel shift transmission is decelerated by the activation of the actuator. To do.

  In other words, both the detection by the detecting means and the operation of the actuator based on the detection exist between the shift pedal and the traveling shift mission operated by the shift pedal. Since sudden acceleration or sudden start during operation and sudden deceleration or sudden stop during release operation of the shift pedal can be avoided, seedling planting on the field scene is deeply planted when starting or accelerating In addition to being able to reduce this, it is possible to reduce the meandering of the traveling aircraft when the vehicle decelerates or stops.

  In addition, the stepping operation on the shift pedal is reduced by the shift operation of the travel shift mission by the actuator, and the load on the shift pedal when the shift lever of the travel shift mission is shifted is applied to the shift pedal. Further, since the shock is not transmitted as a so-called kickback, the shift operability and the operation filling can be greatly improved.

  Next, according to a second aspect of the present invention, the unit shift amount of the traveling speed with respect to the unit operation amount of the shift pedal can be changed by the controller, for example, at the initial stage of the depressing operation of the shift pedal (start In this case, it is possible to arbitrarily set the speed increase of the traveling speed, or to moderate the deceleration of the traveling speed at the end of the depressing operation of the shift pedal (when stopping). There is an advantage that it is possible to further promote the effects of preventing planting and meandering when stopping.

  According to a third aspect of the present invention, when the foot is released from the shift pedal and the shift pedal is not depressed, the clutch mechanism is turned off and the power transmission to the traveling wheels is cut off and the brake mechanism is turned on at the same time. As a result, the traveling wheels stop, so that the traveling body is reliably stopped and can contribute to the improvement of operability.

  Furthermore, according to the fourth aspect of the present invention, the traveling stop of the traveling machine body can be arbitrarily performed by the brake pedal regardless of the operation by the shift pedal, in other words, regardless of the operation by the shift pedal. Therefore, the operability can be further improved.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

  1 and 2, reference numeral 1 denotes a riding type rice transplanter. This riding type rice transplanter 1 has a traveling machine body 2 and a well-known multi-row planting seedling planting mounted on the rear part thereof so that it can be raised and lowered. The traveling machine body 2 is configured such that the vehicle body frame 4 is supported by a pair of left and right rear wheels 6 as well as a pair of left and right front wheels 5.

  An engine 7 is mounted on the vehicle body frame 4 of the traveling machine body 2, and a traveling transmission mission 8 is configured to transmit power to the wheels 5 and 6 by appropriately shifting power from the engine 7. Thus, the traveling machine body 2 travels forward in the direction of arrow A by four-wheel drive.

  Furthermore, 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 is on the floor surface of the driving operation unit 9. The part is provided with a forward stepping type shift pedal 12 and a forward stepping type brake pedal 13 arranged side by side, and these pedals 12, 13 are pivotally attached to the vehicle body frame 4. ing.

  As shown in FIG. 3, the traveling speed change mission 8 includes a variable hydraulic pump 15 that receives power from the engine 7 and a hydraulic motor 16 driven by the hydraulic pressure from the hydraulic pump 15. The continuously variable transmission mechanism 14 includes an HST type continuously variable transmission mechanism 14, which changes the inclination angle of the swash plate 15 a in the hydraulic pump 15 with the transmission lever 17, thereby increasing the traveling speed of the traveling machine body 2. Although not shown, the speed change lever 17 is provided with spring means for urging the speed change lever 17 in the deceleration direction.

  Further, as shown in FIG. 3, the traveling speed change mission 8 is provided with a clutch mechanism 18 for turning on / off (interrupting) power transmission to the wheels 5, 6. , 6 is provided with a brake mechanism 19.

  Further, 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 via a wire or the like. By connecting, when the one actuating member 21 is in the position indicated by the solid line in FIGS. 4 and 7, the brake mechanism 19 is on and the clutch mechanism 18 is off. When the brake mechanism 19 is turned off and the clutch mechanism 18 is turned on when the vehicle is rotated backward in the direction indicated by the arrow B in FIG. Each of the operating members 21 or the operation shaft 20 is provided with spring means (not shown) that urges the operating members 21 to rotate in the direction of the arrow B.

  A laterally extending speed change operation shaft 22 is rotatably supported by a bearing 23 at a front portion of the vehicle body frame 4, and the right end of the speed change operation shaft 22 is connected to the speed change pedal 12. A detecting means 24 for detecting a stepping operation and a stepping release operation (described in detail later) is provided, while a sector gear 25 is fixed to the left end of the speed change operation shaft 22.

  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, and an appropriate length provided at the rear end of the speed change rod rod 27. A pin 17a provided at the tip of the speed change lever 17 in the continuously variable transmission mechanism 14 of the traveling speed change transmission 8 is slidably fitted into and engaged with the long groove hole 27a of the traveling speed change transmission 8. The speed change mechanism 14 is in a state in which almost no power is transmitted when the speed change operation shaft 22 does not rotate and, as a result, the speed change rod rod 27 does not move rearward. The movement of the speed change rod rod 27 in the counterclockwise direction indicated by the arrow C in proportion to the rearward movement of the speed change rod rod 27 from the time when the length L of the long groove hole 27a is exceeded. And While the running speed is increased continuously, the speed change rod shaft 27 travels in proportion to the forward movement of the speed change rod rod 27 accompanying the clockwise rotation indicated by the arrow D in FIGS. The speed is continuously reduced.

  A pinion 29 that is rotationally driven by an electric actuator 28 is engaged with the sector gear 25, and the speed change operation shaft 22 is connected to the arrow C by way of the sector gear 25. And a counterclockwise direction indicated by the arrow D and a clockwise direction indicated by the arrow D.

  A shift pedal shaft 30 parallel to the shift operation shaft 22 is rotatably supported on the right end portion of the shift operation shaft 22, and the shift pedal shaft 30 is linked to the shift pedal 12 via an interlock mechanism 31. Accordingly, the shift pedal 12 is rotated clockwise as indicated by an arrow E by a stepping operation of depressing the shift pedal 12 from a standing state against a spring means (not shown), and the shift pedal 12 is released. In the step release operation of returning to the original standing posture direction by the spring means from the stepped-on position, the rotation is made in the counterclockwise direction indicated by the arrow F.

  The detecting means 24 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 direction from the rotor 24b. The bifurcated arm 24c protrudes and a pair of switches 24d and 24e provided on both sides of the bifurcated arm 24c in the box 24a. The bifurcated arm 24c is connected to the shift pedal shaft 30. When the tip of the projecting arm 32 is engaged, the bifurcated arm 24c and the rotor 24b are rotated counterclockwise as indicated by an arrow E 'by the depressing operation of the speed change pedal 12. One switch 24d is switched from OFF to ON, and the shift pedal 12 is depressed from the depressed state. Rotates in a clockwise direction as indicated by an arrow F 'in releasing operation, the other switch 24e is configured to switch ON from OFF.

  The controller denoted by reference numeral 33 in FIG. 4 receives signals from both switches 24d and 24e of the detecting means 24 as input, changes the inputs as appropriate, and outputs them to the electric actuator 28. The switches 24d, When one switch 24d of 24e is turned from OFF to ON, the electric actuator 28 rotates the speed change operation shaft 22 in the direction of arrow C via the sector gear 25, so that the speed change rod rod 27 is 4, as shown by a solid arrow G in FIGS. 6 and 7, when the other switch 24e of both the switches 24d and 24e is turned from OFF to ON, the speed change rod rod 27 is moved to FIG. As shown by a dotted arrow H in FIGS. 6 and 7, it is configured to move forward.

  As shown in FIG. 8, one operating member 21 for both the clutch mechanism 18 and the brake mechanism 19 is integrally provided with a receiving piece 21a, and the speed change rod rod 27 is slid on the receiving piece 21a. A stopper piece 27b that comes into contact with the receiving piece 21a is provided at the rear end of the speed change rod rod 27 so that the speed change operation shaft 22 does not rotate and the speed change rod rod 27 Is not moved backward, that is, when the shift pedal 12 is not depressed, the stopper piece 27b causes the one actuating member 21 to be turned on while the brake mechanism 19 is ON and the clutch mechanism 18 is OFF. The one actuating member 21 is shown by a two-dot chain line in FIG. 7 against its spring means by holding it in the stopped state and moving the shift rod rod 27 backward. Rotates behind the urchin arrow B, the brake mechanism 19 is configured such that the clutch mechanism 18 is OFF becomes a traveling state is ON.

  The brake pedal 13 arranged in parallel with the speed change pedal 12 is adapted to rotate the brake shaft 34 on the brake shaft 34 rotatably supported on the vehicle body frame 4 by depressing the brake pedal 13. A brake rod rod 36 extending rearward is coupled to the tip of an arm 35 fixed to the brake shaft 34, and the rear end portion of the brake rod rod 35 is connected to the one end as shown in FIG. In a state where the brake pedal 13 is not depressed, the stop state of the one actuating member 21 is achieved by slidably penetrating the locking piece 21b provided on one actuating member 21 and providing a stopper 36a at the rear end thereof. Free operation from the running state (the position indicated by the two-dot chain line in FIG. 7) from the position indicated by the solid line in FIG. 7 is permitted. When the moving member 21 is in the running state, the brake pedal 13 is depressed against its spring, so that the one actuating member 21 can be operated regardless of the speed change rod rod 27, in other words, the speed change gear 21 Prior to the operation of the pedal 12, the stop state can be forcibly set.

  In this configuration, when the speed change pedal 12 is not depressed, the speed change operating shaft 22 does not rotate and the speed change rod rod 27 does not move rearward, so that the HST type continuously variable speed change mechanism 14 of the traveling speed change transmission 8 is provided. The shift lever 17 is not rotated.

  In addition, when the shift pedal 12 is not depressed, the one actuating member 21 is in a stopped state indicated by a solid line in each figure, and the power transmission is cut off when the brake mechanism 19 is ON and the clutch mechanism 18 is OFF. Therefore, the traveling machine body 2 does not travel.

  Next, when the shift pedal 12 is depressed, the shift pedal shaft 30 first rotates in the direction of arrow E, and based on this rotation, the bifurcated arm 24c and the rotor 24b in the detecting means 24 move in the direction of arrow E '. By rotating in the direction, one of the switches 24d and 24e in the detection means 24 is switched from OFF to ON, so that the electric actuator 28 is instructed by the controller 33, Since the speed change operation shaft 22 rotates in the direction of arrow C, the speed change rod rod 27 starts to move backward as indicated by a solid line arrow G.

  When the initial rearward movement of the speed change rod rod 27 reaches the length L of the long slot 27a at the rear end, the stopper 27b is moved rearward from the receiving piece 21a of the one actuating member 21, thereby Since one actuating member 21 rotates in a traveling state along a two-dot chain line, power transmission is performed when the brake mechanism 19 is OFF and the clutch mechanism 18 is ON.

  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 is moved. Since the HST type continuously variable transmission mechanism 14 is actuated for power transmission, the traveling machine body 2 starts traveling.

  The travel speed during this travel is proportional to the further rearward movement of the speed change rod rod 27 and, consequently, the operation of depressing the speed change pedal 12.

  When the depressing operation of the speed change pedal 12 is stopped, 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 shift rod rod 27 is moved rearward. Since the vehicle stops at the position, the traveling speed corresponding to the depressed position of the shift pedal 12 can be maintained.

  Next, when a depressing release operation is performed by removing the foot from the speed change pedal 12 to return the speed change pedal 12 to the original standing position by the spring means from the position where the speed change pedal 12 is stepped on to the speed change position. The pedal shaft 30 rotates in the direction of the arrow F, and based on this rotation, the bifurcated arm 24c and the rotor 24b in the detection means 24 rotate in the direction of the arrow F ', whereby both switches 24d, When the other switch 24e of 24e is switched from OFF to ON, the electric actuator 28 rotates the shift operation shaft 22 in the direction of arrow D in response to an instruction from the controller 33. The rod rod 27 moves forward as indicated by the dotted arrow H.

  As the speed change rod rod 27 moves forward as indicated by the dotted arrow H, the speed change lever 17 rotates rearward and the HST continuously variable speed change mechanism 14 operates to decelerate. Decelerated.

  By holding the shift pedal 12 in a state in which the depression operation described above is stopped halfway, the controller 33 continues to rotate the shift operation shaft 22 in the direction of the arrow D by the electric actuator 28. The other switch 24e in the detecting means 24 is turned from ON to OFF, and in response to an instruction from the controller 33, the rotation of the speed change operation shaft 22 in the direction of the arrow D by the electric actuator 28 is stopped. Since the forward movement of the rod rod 27 stops at that position, the traveling speed can be maintained in the decelerated state described above.

  When the shift pedal 12 returns to the original standing position, the shift lever 17 returns to the original position so that the HST continuously variable transmission mechanism 14 hardly transmits power. Since the two actuating members 21 are in a stopped state in which the brake mechanism 19 is ON and the clutch mechanism 18 is OFF, the traveling of the traveling machine body 2 is stopped.

  Thus, when starting and accelerating by depressing the shift pedal 12, the depressing of the shift pedal 12 is detected by the detecting means 24. Based on this detection, the actuator 28 is operated by the controller 33 via the controller 33. 8 is operated by increasing the speed, while decelerating and stopping by depressing the shift pedal 12 is detected by the detecting means 24, and the actuator 28 travels in response to this detection. The transmission mission 8 is operated by decelerating. Between the shift pedal 12 and the traveling transmission mission 8 operated thereby, the detection by the detecting means 24 and the actuator 28 based on this detection are detected. Both of the operation and the operation of the depressing operation of the shift pedal 12. Acceleration or sudden start, and you can avoid abrupt deceleration or sudden stop of the time depressing the releasing operation of the shift pedal.

  In addition to this, the depressing operation force on the shift pedal 12 can be reduced by the shift operation of the travel shift mission 8 by the actuator 28, and the shift lever 17 of the travel shift mission 8 can be connected to the shift pedal 12. It can be avoided that the load and impact during the shifting operation are transmitted as so-called kickback.

  By the way, the controller 33 has a function that can change the unit shift amount at the traveling speed with respect to the unit operation amount at the shift pedal 12.

  That is, FIG. 8 is a diagram showing 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 primary straight line X indicated by a solid line, whereby the shift pedal 12 The unit shift amount ΔW at the running speed with respect to the unit operation amount ΔS at is set so as to be linearly proportional over the entire region, or is set as a downwardly convex quadratic curve Y indicated by a two-dot chain line, thereby The unit shift amount at the traveling speed with respect to the unit operation amount ΔS in the pedal 12 is decreased from ΔW when the linear proportional operation is performed to ΔW ′ in the initial region of the depression operation of the shift pedal 12, and then the depression operation of the shift pedal 12 is performed. It can be set to increase in proportion to the amount.

  By setting the latter, the speed increase of the traveling speed is moderated at the initial stage of the depression operation of the shift pedal 12 (when starting), and the traveling is performed at the final stage (when the shift pedal 12 is released) (when stopping). Since the deceleration of the speed can be made gentle, it is possible to further promote the effects of preventing deep planting at the start and preventing lateral slippage at the time of stopping.

  When the controller 33 sets the relationship between the operation amount S of the shift pedal 12 and the shift amount W of the traveling speed, the primary straight line X can be used in addition 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 an upward convex quadratic curve, or a linear or quadratic curve can be used for the depression operation of the shift pedal 12. It is possible to set so that the time is different from that at the time of the depression release operation.

  In the above-described embodiment, the drive rotational speed of the engine 7 is automatically changed according to the shift operation in the traveling shift transmission 8.

  That is, as shown in FIG. 6, when the cam gear 37 is provided with a cam groove 37 extending in the circumferential direction, the cam gear 37 is provided with the speed change operation shaft 22 whose start end 37a is the center of the fan gear 25. The rotational direction of the sector gear 25 in the direction of the arrow C, that is, the traveling speed is increased so that the end 37b is located at a portion of a small radius R2 from the speed change operation shaft 22 while being located at a portion of a large radius R1. It is configured to incline so as to gradually approach the center of rotation as the rotational direction increases.

  The cam groove 37 is slidably engaged with a tip of a first arm 39 protruding from a horizontal shaft 38 rotatably supported on the vehicle body frame 4, and a second arm 40 fixed to the horizontal shaft 38. And the accelerator lever 7a in the engine 7 are connected by a wire 41 or the like.

  In this configuration, the accelerator lever 7a is opposed to its return spring means 7b in the cam groove 37 in accordance with the direction of rotation of the sector gear 25 in the direction of arrow C, that is, the increase in travel speed. Since the engine 7 rotates in the direction indicated by J, the rotational speed of the engine 7 is automatically increased in proportion to the increase in traveling speed from idle rotation.

  On the other hand, according to the rotation direction of the sector gear 25 in the direction of the arrow D, that is, in accordance with the reduction of the traveling speed, the accelerator lever 7a is returned by the return spring means 7b in the cam groove 37. Therefore, the rotational speed of the engine 7 is automatically decelerated in proportion to the reduction in travel speed, and becomes idle when travel stops.

  Of course, the rotational speed of the engine 7 can be arbitrarily changed by manually operating the accelerator lever 7a.

It is a side view of a riding type rice transplanter. It is a top view of FIG. It is the schematic which shows a traveling speed change mission. It is a top view which shows a traveling operation apparatus. FIG. 5 is an enlarged sectional view taken along line VV in FIG. 4. FIG. 7 is an enlarged sectional view taken along line VI-VII in FIG. 4. It is a principal part enlarged view of FIG. It is a figure which shows the relationship between the amount of operation of a speed-change pedal, and the amount of shifting of traveling speed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Riding type rice transplanter 2 Traveling machine body 3 Seedling planting device 4 Body frame 5 Front wheel 6 Rear wheel 7 Engine 8 Traveling transmission mission 9 Driving operation part 12 Shift pedal 13 Brake pedal 14 HST type continuously variable transmission mechanism 17 Shift lever 18 Crack mechanism 19 Brake mechanism 21 Actuating member 22 Shifting operation shaft 24 Detecting means 25 Shifting sector gear 27 Shifting rod rod 28 Actuator 33 Controller

Claims (4)

A traveling body having traveling wheels driven by an engine, a seedling planting device mounted on the rear, a traveling speed change mission for the traveling wheels, and a stepped shift pedal provided in a driving operation section of the traveling body. In riding type rice transplanter,
An actuator for shifting the travel transmission mission; and a detecting means for detecting a depressing operation of the shifting pedal and a depressing release operation from the depressed state, wherein the actuator depresses the shifting pedal by the detecting means. The riding type characterized in that the traveling gearshift mission is actuated to increase speed by detecting an operation, and the traveling gearshift mission is actuated to decelerate by detecting the depression release operation on the shift pedal by the detecting means. Traveling operation device in rice transplanter.   2. The controller according to claim 1, further comprising a controller that controls operation of the actuator based on detection by the detection means, and a unit shift amount of a traveling speed with respect to a unit operation amount of the shift pedal can be changed by the controller. A traveling operation device for a riding type rice transplanter, characterized in that:   In the claim 1 or 2, the brake mechanism and the clutch mechanism for the traveling wheel are provided, and further, with one operating member, the stop state in which the brake mechanism is turned on and the clutch mechanism is turned off; The operation mechanism is configured to switch to a running state in which the brake mechanism is turned off and the clutch mechanism is turned on, and the operating member is in the stopped state when the shift pedal is not depressed, and the shift pedal A traveling operation device in a riding type rice transplanter, wherein the traveling state is in the traveling state when the pedal is depressed. 4. The operation member according to claim 3, wherein the actuating member is given priority to a stepping brake pedal provided in a driving operation portion of the traveling machine body, and the stop pedal is prioritized by the depression operation of the brake pedal. A traveling operation device in a riding type rice transplanter characterized by being related to a state.

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