JP3476757B2 - Operation structure of riding rice transplanter - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to a riding type rice transplanter ,
The present invention relates to a structure for operating a work clutch that activates and deactivates a seedling planting device provided on a traveling body, and an operation of right and left markers that attach an index of the next work stroke to a work site.

[0002]

2. Description of the Related Art In a riding type rice transplanter , a work clutch for activating and deactivating a seedling planting device , right and left markers for attaching an index of the next work stroke to a work site, and right and left markers are provided. When the index for the next work stroke is configured to be freely operable in the working posture and the retracted posture to be attached to the work site, the operation of engaging the work clutch and the setting operation of the state in which the desired marker of the right or left is operated in the working posture In many cases, the operation lever for performing the operation is arranged on the lateral outer side of the machine control section (for example, the lateral outer side of the driver's seat of the machine control section). As a result, the operator can operate the operation lever to perform the operation of engaging the work clutch and the operation of setting the desired marker on the right or left to the operating posture.

[0003]

Generally, while the riding type rice transplanter is working, the operator of the aircraft control section often holds the steering handle located in front of the operator. With the structure described in the related art, when performing a setting operation in which a desired marker on the right or the left is operated in the working posture, the operator can operate the steering wheel in front of the steering wheel. It is necessary to move the hand backward to the lateral outside of the aircraft control section to operate the operation lever. With riding type rice transplanter
Is, for example, when the traveling body reaches the end of the work site after one work stroke is completed, the traveling handle body is turned by the steering wheel at the end of the work place. When the operation is completed, the work clutch is engaged, and the desired marker on the right or the left is set to the operating posture, and the operation for entering the next work step is performed. There is.

As a result, as described in the prior art, the operation lever for performing the operation of engaging the work clutch and setting the state in which the desired marker on the right or left is operated in the working posture is the operation lever of the machine body control section. When placed in the lateral outer part,
For example, when the traveling aircraft reaches the end of the work area after the end of one work stroke and the turning at the end of the work area ends, the pilot releases the steering wheel in front of Move the hand backward to the lateral outer side of the robot, operate the operating lever to engage the work clutch, and perform the setting operation to set the desired marker on the right or left to the working posture. You need to move to the front steering wheel and hold the steering wheel.

As described above, the operator operates his / her hand from the front (steering handle) to the rear in order to perform the operation of engaging the work clutch and the operation of setting the desired marker on the right or the left in the working posture. Since it has to be moved to (the operation lever on the lateral outer side of the aircraft control section) and moved from the rear side to the front side again, it is a troublesome state for the operator. The present invention, in the operating structure of the riding type rice transplanter, the operation of setting the operation clutch and the setting operation of the state in which the desired marker of the right or left is operated in the working posture,
It is intended to be configured so that it can be easily performed.

[0006]

A feature of the present invention is that it is a riding type field.
The operation structure of the planting machine is configured as follows. [1] A work clutch that activates and deactivates a seedling planting device provided on the traveling machine body, and right and left markers that can be operated in a working posture and a storing posture that attach an index of the next work stroke to the work site. And an artificially operated first operation tool and a second operation tool under the steering handle of the aircraft control section .
An operating device, right or desired first operating operating the marker and the incoming operation of the setting operation and the work clutch to set the condition to be operated in the action position is performed among the left, the first operation
The second operation operation is configured to be performed by operating the tool in the front-rear direction, and the setting operation is not performed, and the operation operation of engaging the work clutch is performed by the up-down operation of the second operation tool.
Configured to take place.

[2] In the configuration of the above item [1], a drive mechanism for driving the seedling planting device up and down is provided, and the drive mechanism raises and drives the seedling planting device to a predetermined height with the disengagement of the work clutch. The ascending operation and the descending operation of driving the seedling planting device down to the ground by the drive mechanism are in the vertical direction of the second operating tool.
It is configured to be performed by the operation of.

[0008]

According to the action] [I] features of claim 1, a first operating member is disposed on the lower side of the steering wheel of the aircraft steering unit, a first operation
By operating in the longitudinal direction immediately, be performed first operation actuation setting operation for setting the state of a desired marker of right or left is operated to effect posture and the incoming operation of the work clutch is performed it can. In this case, according to the feature of claim 1 , for example, the operator of the aircraft control unit extends the finger slightly downward while holding the steering handle by hand, or releases the hand from the steering handle and slightly moves the hand downward. The first operating tool can be operated in the front-rear direction by extending it.

[0009] Accordingly, riding planting is traveling machine body ends, for example, a single working stroke in machine reaches the end of the working area, if the pivot at the end of the working areas has been completed, the features of claim 1 According to the above, as described in the problem to be solved by the invention, it is said that the operator operates the operation lever by releasing the hand from the steering wheel in front and moving the hand backward to the lateral outer side part of the aircraft control section. Even without performing the first operation tool , for example, by extending the finger downward while holding the steering handle with the hand, or by releasing the hand from the steering handle and extending the hand slightly downward,
Can be easily operated in the front-back direction .
One operation operation can be performed.

[0010] According to the features of claim 1, first, as described above
1 After operating the operation tool in the front-back direction, you can return to the original state of holding the steering handle by hand by returning the extended finger or hand to the upper side, so hold the steering handle with your hand without delay. You can enter the work process of.

[II] According to the feature of claim 1 , the second operating tool is arranged below the steering handle of the aircraft control section, and by operating the second operating tool in the vertical direction, [I] ] It is possible to perform the second operation operation in which the operation operation of engaging the work clutch is performed without performing the setting operation described in []. According to the feature of claim 1 , similarly to the first operation tool, the operator of the machine body control unit, for example, slightly extends the finger downward while holding the steering handle by hand, or slightly releases the hand from the steering handle. Second, by reaching for
It is possible to operate the operating tool in the vertical direction, and after operating the second operating tool in the vertical direction , return the extended finger or hand to the upper side to return to the original state of holding the steering handle by hand. You can

In the riding type rice transplanter, as in the case of the last work stroke at one work site, work traveling may be performed without operating the right and left markers in the working posture. Thereby, according to the feature of claim 1 , the second operation tool is moved up and down.
Operation in the same direction as the first operation
By performing the operation operation, it becomes easy to perform work traveling without operating the right and left markers in the working posture.

In this case, according to the features of claim 1 , the first
Since the second operation tool that performs the second operation operation is provided separately from the first operation tool that performs the operation operation, the operator recognizes the respective functions of the first and second operation tools and uses them properly. The first operation operation and the second operation operation can be selected with less error.

[III] It is important for the operator to hold the steering wheel and operate it.
This is because the direction of the body is changed to right or left.
When operating with the A ring handle, right及 beauty left
There is a sense of consciousness in the pilot. In this case, the features of claim 1
According to the above, the first operation operation described in [I] above is the first operation.
It is performed by operating the tool in the front-back direction and is described in the previous section [II]
The second operation operation of the mount is performed by operating the second operation tool in the vertical direction.
It is configured to be performed. Front-back direction of the first operation tool
Operation direction and steering wheel rotation direction of the operation tool
Is almost the same direction, so the first operation is in front of the first operation tool.
By configuring to be performed by backward operation
The operator can move the first operation tool forward and backward without feeling discomfort.
Operation to the first operation (right or left desired
A setting operation to set the marker to the operating posture.
Can be performed.

[IV] According to the features of claim 2 , as in the case of claim 1 , the "action" described in the above [I], [II], and [III] is provided. It has the "action".
In the riding type rice transplanter , for example, when the traveling machine reaches the end of the work site after one work stroke is completed, the work clutch is disengaged to drive the seedling planting device up and drive the traveling machine to the work site. When the turning at the end of the work area is completed, the seedling planting device is driven to descend, and the operation clutch is engaged and the desired marker on the right or left is operated to the working posture. There is a method in which the operation of setting the state to be performed is performed and the operation of entering the next work process is performed.

According to a second aspect of the present invention , a drive mechanism for raising and lowering the seedling planting device is provided, and the second operating tool is moved upward.
By operating in the downward direction, the drive mechanism raises the seedling planting device to a predetermined height with the disengagement of the work clutch, and the drive mechanism lowers the seedling planting device to the ground level. It can be performed.

Thus, according to the feature of claim 2 , for example, when the traveling machine body reaches the end portion of the work site after one work stroke is completed, the hand is released from the steering wheel in front of the machine body, and Move your hand backwards to the lateral outside,
Even if you do not operate the operation lever, for example, while holding the steering handle with your hand, extend your finger a little, or remove the hand from the steering handle and extend a little below. By
Since the second operation tool can be easily operated in the vertical direction , the lifting operation can be performed. According to the feature of claim 2 , after operating the second operation tool in the vertical direction as described above, by returning the extended finger or hand to the upper side, it is possible to return to the original state of holding the steering handle by hand. Therefore, the turning operation of the traveling machine body by the steering wheel can be performed without delay at the end of the work site.

Next, when the turning at the end of the work site is completed, according to the feature of claim 2 , the hand is released from the steering wheel in front of the vehicle, as in the case of the above-mentioned [I]. Even if you do not operate the operation lever by moving your hand backward to the lateral outer side of the control part, for example, while holding the steering handle with your hand, extend your finger a little, It is possible to easily operate the first and second operation tools in the front-back and up-down directions by releasing the hand from the steering handle and extending the hand slightly downward, and perform the first operation operation and the descending operation. be able to. According to the feature of claim 2 , after operating the first and second operation tools in the front-back and up-down directions as described above, the extended state of the finger or the hand is returned to the upper side, so that the steering wheel can be held in its original state. Since you can return to, you can hold the steering wheel with your hand and start the next work process without delay.

[V] According to the characteristics of claim 2, the first operation according to the above item [I].
The operation is performed by operating the first operating tool in the front-back direction,
The second operation operation, the upward operation and
And lowering operation can be performed by operating the second operating tool in the vertical direction.
It is configured to be viewed. This allows the operator to
The operator's hand is incorrect when operating with the alling handle.
When touching the first or second operation tool, the first operation tool moves forward
Even if it is operated backward, the second operation tool moves up and down.
Rarely operated in the direction
Drive the seedling planting device up to a predetermined height with the operation.
Ascending operation to ascend drive is performed, planting work is interrupted
Less often).

[0020]

According to the features of claim 1 , in the operating structure of the riding type rice transplanter , the first and second operating tools are arranged below the steering handle of the machine control section, whereby the operator can operate. For example, by extending the finger or hand slightly downward from the state where the steering handle is held by hand, the first and second
The setting operation and the operation of engaging and disengaging the work clutch can be performed such that the operation tool can be easily operated in the front-back and up-down directions, and the desired marker on the right or left is operated in the working posture.
It becomes possible to perform the first operation operation in which the work is performed and the second operation operation in which the work clutch is engaged without performing the setting operation, and thus it is possible to improve the operability of the riding-type rice transplanter. did it.

According to the feature of claim 1 , for example, when one working stroke is completed, the traveling body reaches the end of the work site, and the turning at the end of the work site is completed, the first and second operations are performed. Operation tool
You can quickly return to the original state of holding the steering handle by hand by operating the to the front and back and up and down and then returning the extended finger or hand to the upper side, so hold the steering handle with your hand without delay and It became possible to enter the work process, and the operability of the riding rice transplanter could be improved.

According to the feature of claim 1 , the second operation tool is turned up.
By operating in the downward direction, the second operating operation can be performed, so that to work travel without operating the right and left of the marker to the working position becomes easy, riding rice planting
We were able to improve the workability of the machine . In this case, 請
According to a feature of Motomeko 1, the first operating member to perform the first operation operated separately, and the second operating member is provided to perform the second operation operated definitely less operating first operating operation and the second operation so that you can be selected, ride in this plane
We were able to improve the operability of the portable rice transplanter .

According to the features of claim 1, the operator feels uncomfortable.
Operate the first operating tool in the front-back direction without holding the
Operation (the desired marker on the right or left is changed to the working posture)
Can be set)
As a result of misoperation by the operator
I was able to reduce the work.

The claimed According to a feature of the second aspect, includes a "Effect of the Invention" of claim 1 of the case as well as the aforementioned claim 1, "invention as follows in addition to the" Effect of the Invention "This It has the effect of. According to the characteristic of claim 2 , the second operation
By operating the work tool in the vertical direction, the drive mechanism raises the seedling planting device to a predetermined height with the disengagement of the work clutch, and seedling planting by the drive mechanism .
It is possible to perform the lowering operation of lowering driving until grounding the device, to be extended from the state operator, for example to have a hand steering wheel fingers and hands slightly lower
As a result, the second operating tool can be easily operated in the vertical direction, and the ascending operation and the descending operation can be performed, and the operability of the riding-type rice transplanter can be improved.

The top according to the features of claim 2, the second operating member
You can quickly return to the original state of holding the steering wheel by hand by returning the extended finger or hand to the upper side after operating it downwards. When the end of the vehicle is reached, the turning operation of the traveling machine body by the steering wheel can be performed without delay, and the operability in terms of the turning operation of the traveling machine body by the steering wheel is also improved.

According to a feature of claim 2, the operator steers
The operator's hand is incorrect when operating with the ring handle.
Touch the first or second operation tool, the first operation tool moves back and forth.
Although it may be operated in the same direction, the second operating tool moves up and down.
Since it is rarely operated in the
The seedling planting apparatus at a predetermined height (s) by association with the drive mechanism operation
The raising operation is performed to raise the drive, and the planting work is interrupted.
Because it is less likely to occur)
The decrease in business efficiency has decreased.

[0027]

Embodiments will be described below with reference to the drawings. Figure 1
5 shows a passenger type rice transplanter which is an example of a work vehicle.
In the riding type rice transplanter, the seedling planting device 3 can be lifted and lowered by a lift cylinder 4 via a link mechanism 2 in the rear part of the riding type traveling machine body 1, and the electric rolling motor 5 rolls around the front-rear axis. It is configured so that it can be freely driven.

As shown in FIG. 15, the power of the engine 6 mounted on the front portion of the traveling vehicle body 1 is transmitted to the front via the belt type continuously variable transmission 7 and the gear shift type main transmission 9 of the transmission case 8. The power is transmitted to the wheels 10 and the rear wheels 11, and the power after the shift is transmitted to the seedling planting device 3 via the planting clutch 12 (see FIG. 1). The belt type continuously variable transmission 7 is configured as a split pulley type continuously variable transmission so that the speed is set by a potentiometer type speed setter (not shown) provided on the body control panel 13. The distance between the split pulleys is changed by the electric cylinder 15. The main transmission 9 is configured to be operable by a main shift lever 16 to a forward first speed position F1 for planting traveling, a forward second speed position F2 for road traveling, a neutral position and a reverse position R.

As shown in FIG. 15, the seedling planting device 3 includes a seedling stand 18 which moves laterally back and forth with a constant stroke with respect to the planting transmission case 17 which also serves as a frame. A planting mechanism 19, which takes out each plant and plants it,
It is provided with a plurality of ground floats 20 and the like that are swingably supported around a rear fulcrum. On the right and left sides of the seedling planting device 3, a line drawing marker 21 for drawing a running index line for the next planting process in the field is provided so as to be retractable. The right and left line drawing markers 21 are biased in the protruding posture and are forcibly stored via the wire (not shown) as the seedling planting device 3 is driven to move upward. By selectively releasing the right and left lock mechanisms 22 (see FIG. 1) that hold the left line drawing marker 21 in the stored posture, the right selected when the seedling planting device 3 is driven downward. Alternatively, the left line drawing marker 21 is operated in the protruding posture.

As shown in FIGS. 7 and 15, the right and left lock mechanisms 22 are released by the steering handle 2.
3 is configured to be selectively performed by operating the first operating tool 24 provided on the lower right side of the No. 3 in the front-rear direction from the neutral position urged to return.
When operating from the neutral position in the front-back direction, the planting clutch 1
The clutch switch 25 (see FIG. 1) for the operation of turning on and off 2 is turned on.

As shown in FIG. 1, the planted clutch 12 is geared by a forward / reverse electric clutch motor 27 driven via a relay circuit 26 operated by a clutch engagement signal STR and a clutch disengagement signal STP. A deceleration type actuating member 28 is used to enter and cut. Whether the planted clutch 12 is in the engaged state or the disengaged state is detected by the clutch-off switch 29 and the clutch-on switch 30 that are in contact with the operating member 28. In the link mechanism for interlocking operation of the planting clutch 12 and the operating member 28,
A compression spring SP that is compressed when the planting clutch 12 is disengaged is provided, and the planting clutch 12 can be quickly disengaged while ensuring flexibility.

As shown in FIGS. 3, 6 and 15, the driver's seat 3
The seedling planting device 3 is driven up and down by an operation lever 32 which is provided on the lateral outer side of 1 and which can be manually rocked back and forth. The operation lever 32 has a planting position P, a descending position D,
The neutral position N, the raised position U, and the automatic position AT can be freely operated, and the operation position of the operation lever 32 is detected by a potentiometer-type lever sensor 33, and the lever sensor 33 is detected by a control device 34 equipped with a microcomputer. Value level judgment is performed.

When the operation lever 32 is operated to the planting position P on the basis of the level judgment of the detection value of the lever sensor 33, the planting clutch 12 is operated while the seedling planting device 3 is driven downward until it is grounded. When the operation lever 32 is turned on and the operation lever 32 is operated to the lowered position D, the seedling planting device 3 is driven to descend while the clutch 12 for planting is disengaged. When the operation lever 32 is operated to the neutral position N, the seedling planting device 3 is held at that position, and when the operation lever 32 is operated to the raised position U, the seedling planting device 3 is driven to rise. . When the operation lever 32 is operated to the automatic position AT, a raising operation and a lowering operation are performed by a raising / lowering operation switch 35 (see FIG. 1) described later, and the seedling planting device 3 is forcibly forced when the traveling body 1 moves backward. Driven up.

As shown in FIGS. 1, 7, and 15, a second operating tool 36 is provided on the lower left side of the steering handle 23 in the body control section, and the second operating tool 36 is returned from the neutral position where it is biased upward. When operated, the lifting operation switch 35 is turned on and operated. With this, every time the raising / lowering operation switch 35 is turned on, the seedling planting device 3 is moved to the maximum raised position with a descending operation for descending the seedling planting device 3 until it is grounded, and a disengaging operation of the planting clutch 12. The ascending operation of the ascending drive appears alternately. When the second operating tool 36 is operated downward from the neutral position, the clutch switch 25 for engaging and operating the planted clutch 12 is operated.

As shown in FIG. 1, a reverse detection switch 37 for detecting that the main transmission lever 16 has been operated to the reverse position R is provided, and by detection of the reverse detection switch 37,
The control device 34 forcibly drives the seedling planting device 3 to ascend to the maximum rising position. The detection that the seedling planting device 3 has risen to the maximum raised position is performed by contacting the link switch 38 arranged on the rear side of the driver seat 31 with the middle part of the link mechanism 2. The above-described raising and lowering operations by the raising / lowering operation switch 35 and the compulsory raising drive of the seedling planting device 3 when the traveling machine body 1 is in the reverse direction are performed only when the operation lever 32 is operated to the automatic position AT. Done.

The operating lever 32 has a planting position P and a descending position D.
And the automatic position AT, the main transmission lever 1
In a state where 6 is operated to the forward first speed position F1 or the forward second speed position F2, the rolling control is performed so that the laterally inclined posture of the seedling planting device 3 is maintained at the set posture. As shown in FIGS. 3 and 9, the main shift switch 39 for detecting whether the main shift lever 16 is operated to the forward first speed position F1 or the forward second speed position F2, the absolute horizontal posture of the seedling planting device 3 A weight-type tilt sensor 40 that detects a tilt angle from the vehicle, and a potentiometer-type tilt angle setter 41 that can artificially set a target tilt posture are provided. The main shift switch 39, the tilt sensor 40, and the tilt angle. Setting device 4
The rolling control shown in FIG. 4 is performed by the control device 34 based on 1 and the lever sensor 33.

The main shift lever 1 is operated by the main shift switch 39.
It is detected that 6 is operated to the forward first speed position F1 or the forward second speed position F2, and the lever sensor 33 causes the operation lever 32 to move the planting position P, the descending position D and the automatic position AT.
If it is detected that any of the
If the detected value XR of the tilt sensor 40 is different from the target value Ra of the tilt angle setter 41 and the detected value XR of the tilt sensor 40 is smaller than the target value Ra of the tilt angle setter 41, the detected value XR of the tilt sensor 40. Is output to the relay circuit 42 (see FIG. 1) until the target angle Ra of the tilt angle setting device 41 substantially matches, and the rolling motor 5 operates in the right downward direction. Detection value X of the tilt sensor 40
If R is larger than the target value Ra of the tilt angle setter 41,
The output for left-down is output to the relay circuit 42, and the rolling motor 5 operates in the left-down direction.

As shown in FIG. 3, when it is detected by the right and left limit switches 43 and 44 that the rolling motor 5 has operated up to the mechanical operation limit, the relay circuit 4
2 is directly turned off and the rolling motor 5 is stopped. When an abnormality occurs in the rolling control as described above, the relay circuit 42 is directly operated by the manual rolling switch 45 (see FIGS. 3 and 9) which is a three-position switching type and urged to return to the center. Manual rolling motor 5
Can be activated. When the rolling motor 5 is operated by the rolling switch 45, the control signal from the control device 34 is maintained in the off state.

The raising / lowering control for automatically raising / lowering the seedling planting device 3 is performed so that the ground height of the seedling planting device 3 is maintained at the set value during the planting run. As shown in FIG. 2, a potentiometer-type float sensor 46 for detecting the amount of vertical swing based on fluctuations in the ground pressure of the ground float 20 located at the center of the left and right is provided.
The control device 34 controls the electromagnetic control valve 48 for the lift cylinder 4 so that the detected value XS of the lift cylinder 4 falls within the dead zone of the target value Sa of the potentiometer-type sensitivity setter 47 (see FIG. 7) provided in the aircraft control panel 13. The height above ground of the seedling planting device 3 is maintained at the set value by automatically operating.

As shown in FIG. 5, the float sensor 46
If the detection value XS of is in the dead zone of the target value Sa of the sensitivity setting unit 47, that state is held. Float sensor 46
Is larger than the target value Sa of the sensitivity setting unit 47, the electromagnetic solenoid UPS for raising the electromagnetic control valve 48 is detected.
If a drive signal is output to ol, and the detection value XS of the float sensor 46 is smaller than the target value Sa of the sensitivity setting device 47, the electromagnetic solenoid DWSol for lowering the electromagnetic control valve 48.
The drive signal is output to. In the lifting control as described above, the operation lever 32 is operated by the planting position P, the descending position D and the automatic position A.
It is performed only when one of T is operated.

The sensitivity setting unit 47 changes the target reference attitude of the grounding float 20 and changes the sensing load of the grounding float 20 according to the hardness of the mud.
The target value Sa can be corrected by the three-position changeover type correction switch 51 (see FIGS. 2 and 9). As shown in FIG. 8, by operating the correction switch 51, the change characteristic of the target value Sa of the sensitivity setter 47 is insensitive to the parallel movement (the target reference attitude of the ground float 20 is in the forward rising direction) and the sensitive side ( The target reference attitude of the ground contact float 20 is changed to the front downward direction).

When the traveling speed of the traveling body 1 becomes high, the grounding float 20 becomes slightly floating, and the seedling planting device 3
May rise, resulting in shallow planting, so sensitivity setter 4
The change characteristic of the target value Sa of No. 7 is configured to be changed according to the traveling speed of the traveling machine body 1. As shown in FIG. 2, a rotation speed sensor 5 for detecting the rotation speed of the engine 6
2. A potentiometer type shift position sensor 53 for detecting the shift position of the belt type continuously variable transmission 7 is provided.
The traveling speed of the traveling body 1 is calculated by the control device 34, and if the traveling speed of the traveling body 1 is high (for example, 0.8
(M / sec or more), the change characteristic of the target value Sa of the sensitivity setting unit 47 is changed to the insensitive side, and the change amount increases as the traveling speed of the traveling body 1 increases.

A hydraulic pump (not shown) for the lift cylinder 4 is configured to be driven by the engine 6, and the flow rate of hydraulic oil for the lift cylinder 4 changes depending on the rotation speed of the engine 6. As a result, the control device 34 changes the duty ratio of the pulse current supplied to the electromagnetic solenoids UPsol and DWSol for raising and lowering the electromagnetic control valve 48 according to the rotation speed of the engine 6, and the lift cylinder 4
Control is performed so that the hydraulic oil flow rate for is always maintained constant. As shown in FIGS. 9 and 15, the tilt angle setting device 4
1, the rolling switch 45 and the correction switch 51,
The rear wheel fender 54 is located on the side of the driver's seat 31 and is configured to be covered with a lid 55 that can be opened and closed.

Next, the control of the control device 34 relating to the raising and lowering drive of the seedling planting device 3 will be described with reference to FIGS. 10 to 14. When a main switch (not shown) is turned on and the control is started, an electromagnetic solenoid UPSo for ascending and descending the electromagnetic control valve 48 with respect to the lift cylinder 4 is started.
1, the output to DWSol is turned off, the operation flag f0 of the lifting operation switch 35, the clutch switch 2
The operation flag f1 of 5, the operation flag f2 of the elevation control, and the operation flag f3 of the backward ascent operation are set to "0" (steps # 1 and # 2).

When the operating lever 32 is operated to a position other than the automatic position AT, the operation flags f0 to f3 are set to "0", and when the operating lever 32 is operated to the neutral position N, the clutch motor If the clutch engagement signal STR for the clutch 27 is turned off and the clutch off switch 29 is turned on, the clutch disengagement signal STP for the clutch motor 27 is turned off. If the clutch off switch 29 is in the off state, the clutch disengagement signal STP
Is output and the planted clutch 12 is maintained in the disengaged state (steps # 3 to # 9). When the operation lever 32 is operated to a position other than the automatic position AT and the neutral position N when the main switch is turned on, the operation lever 32 is operated.
Is operated once to the neutral position N, and then the process proceeds to the next step (step # 10).

When the operating lever 32 is operated to the raised position U, the clutch engagement signal STR is turned off, the operation flag f2 is set to "0", and then the clutch off switch 29 is turned on. If the clutch disengagement signal STP is in the off state and the link switch 38 is in the on state (the raising state of the seedling planting device 3), the raising electromagnetic solenoid UPSol of the electromagnetic control valve 48 is turned off, and the link switch 38 is turned off. In the off state, the electromagnetic solenoid UPsol for raising the electromagnetic control valve 48 is turned on, and the seedling planting device 3 is driven to rise (steps # 11 to # 1).
7). If the clutch off switch 29 is not in the on state, the clutch disengagement signal STP is in the on state, the planted clutch 12 is disengaged, and the electromagnetic solenoids UPSol and DWSol for raising and lowering the electromagnetic control valve 48 are turned off. (Steps # 18, # 19).

When the operating lever 32 is operated to the lowered position D, after the output of the clutch engagement signal STR is stopped, the planting clutch 12 is maintained in the disengaged operation state as described above (step # 20). ~ # 23), the seedling planting device 3 is driven to descend (steps # 24 to # 26). When the float sensor 46 detects that the seedling planting device 3 is grounded, the above-described raising / lowering control is executed (step # 27). If the link switch 38 is turned on at this time, the electromagnetic solenoid UPS for raising the electromagnetic control valve 48
ol is turned off, and the operation flag f2 is set to "1" (steps # 28 to # 30).

When the operation lever 32 is operated to the planting position P, the clutch on signal STR is output after the clutch on signal STR is turned off, and the clutch on signal STR is output until the clutch on switch 30 is turned on. 12 is entered and operated (steps # 31 to # 34), and thereafter the elevation control is executed. Operation flags f other than the operation flag f2
0, f1, f3 are maintained at "0" (step # 3
5).

Next, the case where the operation lever 32 is operated to the automatic position AT will be described. When the raising / lowering operation switch 35 is turned on after the operation lever 32 is operated to the automatic position AT, the operation flag f0 is set to "1",
When the link switch 38 is in the ON state (the seedling planting device 3 is in the raised state), the operation flag f2 is set to "0", the lowering electromagnetic solenoid DWSol of the electromagnetic control valve 48 is turned on, and the seedling planting is performed. The attachment device 3 is driven downward (steps # 36, # 37, # 39 to # 43).

When the seedling planting device 3 is driven downward until it is grounded, the operation flag f0 is set to "0", the operation flag f2 is set to "1", and then the up / down control is performed (step # 44- # 48). If the link switch 38 is in the off state when the lifting operation switch 35 is turned on, the planting clutch 12 is disengaged, and the seedling planting device 3 is driven upward until the link switch 38 is turned on (step # 49 to # 54), if the link switch 38 is turned on, the operation flag f0 is set to "0" (steps # 55, # 56). When the raising / lowering operation switch 35 is turned on again while the seedling planting device 3 is being driven up or down, the raising or lowering drive of the seedling planting device 3 is reversed (steps # 56 to # 60). When the raising / lowering operation switch 35 is turned on (raised side) in the initial state and the planted clutch 12 is not disengaged, the state returns to the initial state (steps # 37, # 38).

After the seedling planting device 3 is driven down to the ground, when the clutch switch 25 is operated by the first and second operating tools 24, 36, the operation flag f1 is set to "1". , The planting clutch 12 is turned on (steps # 61 to # 64), and the clutch-on switch 3 is pressed.
An alarm buzzer (not shown) is activated until 0 is turned on. When the clutch-on switch 30 is turned on, the operation flag f1 is set to "0", the alarm buzzer is stopped (steps # 65 to # 69), and then the up / down control is performed.

After the operation lever 32 is operated to the automatic position AT, the operation of the main transmission lever 16 to the reverse position R is detected by the reverse detection switch 37, and if the link switch 38 is not in the ON state, the operation flag is set. After f3 is set to "1" (steps # 70 to # 74), the process proceeds to step # 49. As a result, the planted clutch 1
When 2 is turned off and the seedling planting device 3 is forcibly driven to rise until the link switch 38 is turned on, and the link switch 38 is turned on, the operation flag f3 is set to "0" ( Step # 56).

Since the up / down operation switch 35 is not turned on or the reverse detection switch 37 is not detected, the operation flag f3 is "1".
, The seedling planting device 3 is at the maximum rising position, and the operation lever 32 is operated from another position to the automatic position AT, or when the raising / lowering control is not performed, the seedling planting device is set. 3 is held at the current lift position (step # 75
~ # 79), and in other cases, the process goes to the elevation control (steps # 80, # 46).

It should be noted that reference numerals are added to the claims for facilitating the comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a block diagram of raising / lowering drive of a seedling planting device and operation of a planting clutch.

[Fig. 2] Block diagram of lifting control of seedling planting device

[Fig. 3] Block diagram of rolling control of a seedling planting device

FIG. 4 is a diagram showing a flow of rolling control of the seedling planting device.

FIG. 5 is a diagram showing a flow of raising / lowering control of the seedling planting device.

FIG. 6 is a plan view showing an operation position of an operation lever.

FIG. 7 is a plan view near the steering handle.

FIG. 8 is a diagram showing a change characteristic of a target value of a sensitivity setting device.

FIG. 9 is a plan view of the vicinity of a tilt angle setting device, a rolling switch and a correction switch.

FIG. 10 is a diagram showing the flow of raising / lowering drive of the seedling planting device, operation of the planting clutch, and raising / lowering control.

FIG. 11 is a diagram showing the flow of raising / lowering drive of the seedling planting device, operation of the planting clutch, and raising / lowering control.

FIG. 12 is a diagram showing the flow of raising / lowering drive of the seedling planting device, operation of the planting clutch, and raising / lowering control.

FIG. 13 is a diagram showing the flow of raising / lowering drive of the seedling planting device, operation of the planting clutch, and raising / lowering control.

FIG. 14 is a diagram showing a flow of raising / lowering drive of the seedling planting device, operation of a planting clutch, and raising / lowering control.

FIG. 15: Side view of the entire riding rice transplanter

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Running machine 3 Seedling planting device 4 Drive mechanism 12 Work clutch 23 Steering handle 21 Marker 24 1st operation tool 36 2nd operation tool

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Japanese Unexamined Patent Publication No. 2-100607 (JP, A) Japanese Unexamined Patent Publication No. 5-153820 (JP, A) Actual Public Inspection 1-14089 (JP, Y2) (58) Field (Int.Cl. ⁷ , DB name) A01C 11/02 A01B 69/02

Claims (2)

(57) [Claims] 1. A work clutch (12) for operating and stopping a seedling planting device (3) provided on a traveling machine body (1).
And the right and left markers (21) that can be operated in the working posture and the retracted posture for attaching the index of the next work stroke to the work site, and below the steering handle (23) of the aircraft control section,
First operation tool (24) and second operation tool that are artificially operated
(36) provided with the desired marker (21) enters the setting operation and the working clutch is set to a state that is operated acting posture (12) Operation and first operations performed among the right or left Operation
Performed by operating the first operating tool (24) in the front-back direction
Configured such that, the second operating actuated to the enter operation of the working clutch (12) without setting operation is performed is performed, the second operating member
It is configured to be operated by the vertical operation of (36)
The operating structure of the riding rice transplanter . 2. A seedling planting device provided with a drive mechanism (4) for driving the seedling planting device (3) up and down, and accompanied by disengaging operation of the working clutch (12) . The raising operation of driving (3) to a predetermined height and the lowering operation of driving the seedling planting device (3) to the ground by the drive mechanism (4) are up and down of the second operating tool (36). Directional operation
The riding according to claim 1, which is configured to
Type rice transplanter operation structure.