JP3286220B2 - Transplant machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a driving rise in vehicle body
The work equipment is connected so that it can be freely lowered, and the work equipment is
To supply power to the
With a drawing marker, this drawing marker can be
Working posture that protrudes outward from the
The transfer provided so that it can be switched to the raised non-operation position.
About the planting machine.

[0002]

2. Description of the Related Art Conventionally, in the above transplanter, in a field,
Raise the work equipment when turning the headland accompanying the traveling of seedling planting
When descending, the left and right drawing
The locker is pulled up and the left and right lock mechanisms are locked.
Are sequentially switched left and right so that when the work equipment descends
The drawing marker that switches to the action position switches alternately left and right
It was conceived that it could be obtained.

[0003]

SUMMARY OF THE INVENTION The structure described above
For improved maneuverability in headland turning on a boat
It is. That is, when turning the headland, the seedling planting device
Stop the seedling planting operation and raise the seedling planting device from the mud surface.
And turned the aircraft by steering.
Later, when the seedling plant is lowered again and the alignment is completed
The seedling planting operation is resumed at the point
Operation is also necessary, which makes the operation operation complicated.
It becomes Moreover, depending on the pilot, the aircraft
It is necessary to reduce the traveling speed of
It was a very difficult operation. So, these
Raising and lowering the seedling planting equipment to minimize each operation
Is performed by a changeover type switch, and
The left and right lock mechanisms for the marker
Status automatically changes as the seedling planter moves up and down
There is something that can be obtained. However, as described above
In the structure, the drawing marker is
As the power switches between left and right forcibly,
In the middle of the operation, the work is temporarily suspended,
When resuming work after
Unnecessary left / right switching even when switching is not required
There is a problem that is performed.

Further, assuming that an operating tool for controlling the on / off control of the working clutch and an operating tool for controlling the switching of the drawing marker to the operating position are provided, the above-described switches are provided to easily raise and lower the working device. However, there is room for improvement in that it requires time and effort to operate the on / off control of the work clutch and to switch to the operating position of the drawing marker when turning the headland, since it requires time and effort to operate each operating tool.

SUMMARY OF THE INVENTION An object of the present invention is to rationally construct a transplanting machine capable of easily moving a working device up and down and selecting a drawing marker during headland turning.

[0006]

Means for Solving the Problems [Invention according to claim 1] The technical means of the present invention taken to achieve the above object is as follows:
While connecting the working device to the traveling body so that it can be driven up and down freely,
A transfer line provided with left and right drawing markers that can be switched between an operating position that protrudes left and right outward and a retracted position that retreats inward .
Touch operation on the planting machine near the steering wheel
Based on the operation signal from the lifting operation switch
Switch between lifting the equipment and lowering the ground.
And a control device for changing the operation.
, The left and right drawing markers
In a sequential operating state in which
And the line drawing markers on the left and right
Non-order to change the working state sequentially and raise the work equipment
Switch the operation state of the left and right drawing markers to the next operation state.
It is configured to output an operation signal for changing the control
The operation signal of the elevating operation switch is sequentially transmitted to the device.
Operation output or non-sequential operation output
That is, there is provided a determination means for determining whether or not there is any.

The operation of the above configuration is as follows.
a. ~ C. As shown in FIG . a. According to the characteristic configuration of the present invention, the touch operation type switch is provided.
The operating device can be used to control the elevating and lowering of the working device.
It is necessary to operate the operating tools for raising and lowering the work equipment during ground turning.
The time to perform is extremely short. Therefore,
Less time loss to be taken care of for the work, more Han
It becomes easier to concentrate on dollar operations. b. The left and right markers are activated sequentially as the work equipment moves up and down
Power can be switched between
Separately, the labor for raising and lowering the marker can be saved.
You. And temporarily suspend the work in the middle of the work process
When lifting and lowering the work equipment and then resuming work
When the marker does not need to be automatically switched left and right
However, the operation of the drawing marker in such a case
The order can also be changed using the operating device for this operation.
I can. c. Moreover, this touch-operated switch-based operating tool
Is provided near the handle, so that
Operation, and the order of operation in which the marker switches sequentially left and right
Introductory steps can be performed without releasing the handle
Work can be performed more efficiently. Also, the left and right markers
The change of the operation sequence of the sequential change
Is configured to be selectable based on the determination result of the operation mode of
Therefore, the operation order can be quickly switched.

[Invention of Claim 2] The structural feature of the invention of Claim 2 is that of Claim 1
In the invention according to the invention, there is provided a work clutch which can be switched between an on state in which the work apparatus is driven and an off state in which the work apparatus is stopped, and the off operation of the work clutch can be performed by a lifting operation switch. It is in.

According to the second aspect of the present invention,
The usage is as follows . The lifting / lowering operation switch can be used to raise and lower the working device, select the drawing marker, and disconnect the work clutch.
As compared with the case where each operation is performed by a different operation tool, the trouble of switching the operation tool is eliminated, and the operation mode is further simplified.

[0010]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 3 shows a riding type rice transplanter as a transplanter. This rice transplanter is constructed by connecting a seedling planting device 2 (an example of a working device) to a rear part of a riding type traveling machine body so as to be able to move up and down via a parallel quadruple link mechanism 1 and to freely roll left and right around a longitudinal axis. is there. The seedling planting device 2 is supported by a planting transmission case 4 that also serves as a frame so as to be rotatable around a longitudinal axis Y.
In the planting transmission case 4, a seedling rest 5 that reciprocates sideways with a constant stroke, a plurality of planting mechanisms 6 that take out seedlings for planting one by one from the lower end of the seedling rest 5 and plant the seedlings in a field.
It is provided with three ground floats 7 and the like arranged in parallel on the left and right sides, and is configured to move up and down by expansion and contraction driving of the hydraulic cylinder 10.

As shown in FIG. 1, a hydraulic control valve V for the hydraulic cylinder 10 is of an electromagnetic type, and the electromagnetic control valve V is configured to be driven and controlled by a control device 13 having a microcomputer. It is. That is, the lifting lever 1 provided on the side of the driver's seat 15 of the aircraft
6 [An example of the lifting / lowering operation tool] is configured such that the output of the potentiometer PM1 based on the swinging operation of the lifting / lowering operation can artificially show the ascending operation, the descending operation, and the neutral stop state. The lifting switch SW1 (an example of a compulsory lifting operation tool) is configured so that the raising operation and the lowering operation can alternately appear.

In the planting operation state, the elevation control means A for maintaining the height of the seedling plant 2 above the ground at a predetermined value is controlled by the control device 1.
3 is provided in the form of a control program. That is, the grounding float 7 at the center of the fuselage is supported so as to be able to swing up and down around the rear fulcrum, and relative to the grounding float on the front side of the grounding float 7 due to the change of the ground height of the seedling planting device 2. Vertical movement is detected by potentiometer PM2,
The controller 13 controls the electromagnetic control valve V of the hydraulic cylinder 10 so that the output value of the potentiometer PM2 falls within a predetermined setting area, and maintains the seedling planting apparatus 2 at a predetermined ground height. When the raising and lowering switch SW1 is actuated to move the seedling planting apparatus 2 up to the maximum ascending position, the limit switch SW2 for detecting that the seedling planting apparatus 2 has risen to near the maximum ascending position is moved to the traveling machine body. Is mounted on the rear wheel fender portion 21 so that a middle portion of the link mechanism 1 comes into contact with the rising operation to perform a detection operation. Based on the detection operation of the limit switch SW2, the hydraulic cylinder 10 is driven upward. Is automatically stopped.

The power from the traveling machine body is used for planting clutch 21.
[One example of a work clutch] is configured to be intermittently supplied to the seedling planting device 2 via a transmission shaft 22, and the planting clutch 21 is configured to be turned on and off by an electric motor M with a speed reduction mechanism. On both left and right sides of the seedling planting device 2, line drawing markers 23R and 23L that can be switched between an action posture for projecting laterally outward to draw a traveling target line in an unplanted area and a retracted posture for retreating to the inside of the machine are provided. As shown in FIG. 2, the drawing markers 23R and 23L are oscillated and biased by a spring 24 toward the action posture, and the relative positions of the rear link 1a are changed when the seedling planting device 2 is raised. Accordingly, the operation wire 26 is pulled by the roller 25 so as to be in a retired posture. Lock mechanisms 27R and 27L are provided for automatically retaining and holding the posture in the retired posture, respectively.
When the seedling planting apparatus 2 is lowered in a state where the lock holding of the R and 27L is selectively released, the drawing marker on the selected side is set to the action posture. Electromagnetic solenoids 28R, 28L are provided for sequentially releasing the lock mechanisms 27R, 27L alternately left and right.

The raising / lowering operation switch SW1 can control the raising / lowering of the seedling planting apparatus 2, the control of the planting clutch 21, and the control of the left and right drawing markers 23R and 23L. That is, the first operation mode determining means B for determining the operation mode of the raising / lowering operation switch SW1 at the time of raising the seedling planting apparatus 2 is provided. As the device 2 is raised, the lock mechanism 27R, 27L is switched between a state in which the lock state is sequentially switched left and right and a state in which the operation is restrained. In addition, the lifting operation switch S
A second operation form discriminating means C for discriminating an operation form at the time of a descending operation of the seedling planting apparatus 2 of W1 is provided. Based on a result of the discrimination by the second operation form discriminating means C, the descending operation of the seedling planting apparatus 2 is performed. Accordingly, the state can be switched between a state in which the planting clutch 21 is automatically engaged and a state in which the automatic clutch engaging operation is restrained. The operation mode discriminating means B and C are provided in the control device 13 in the form of a control program, and the control device 13 performs control as follows.

FIGS. 4 and 5 show control flowcharts in the planting operation. When the raising / lowering operation switch SW1 is operated in a state where the raising / lowering lever 16 is operated to the lowering position of the seedling planting device 2, the electric motor M is driven to drive the planting clutch 2
In addition to turning off the switch 1, the electromagnetic control valve V is driven to raise the seedling planting device 2 to the maximum raising position while judging the detection state of the limit switch SW2 [Steps 1 to 4]. Operating time t for raising the raising / lowering operation switch SW1
When 1 is equal to or longer than the predetermined time T1, the electromagnetic solenoids 28R and 28L are switched to operate the drawing marker 23.
R and 23L are switched left and right [steps 5 and 6].
When the operation time t1 is short, the electromagnetic solenoid S
L is not driven, and the left and right switching of the drawing markers 23R and 23L is suppressed. When the up / down operation switch SW1 is operated again, the electromagnetic control valve V is driven to lower the planting apparatus 2 on the ground, and the up / down operation switch S1 is operated.
When the descending operation time t2 of W1 is longer than the predetermined set time T2, the electric motor M is driven to drive the planting clutch when the predetermined set time T3 has elapsed from the point of contact detected from the change in the output of the potentiometer PM2. 21 is automatically operated (steps 7 to 12). When the lowering operation time t2 is short, the seedling planting device 2 is lowered to the ground, and the planting clutch 21 is maintained in the disengaged state. When the planting clutch 21 is turned on and operated, the planting state display lamp 44 provided on the control panel 17 is lit in blue, and when the planting clutch 21 is in the disengaged state, it is lit in red (step). 13, 15]. Further, a marker lamp 45 provided on the control panel 17 is displayed to indicate which side of the drawing markers 23R, 23L in the active state is on the left or right [Step 14].

[Another Embodiment] The lifting operation switch SW1 may be constituted by a swing operation type in place of the push operation type. At this time, the discrimination of the operation form in the step 5 and the step 9 is performed by the operation The determination may be made based on the difference in the direction. Also, after the seedling planting device 2 descends,
The configuration in which the planting clutch 21 is engaged may be configured to be operated by a dedicated operating tool instead of automatically engaging in operation with the passage of time.

[0017]

The effects of the present invention are as follows.
You . [B] Switch to the left and right marker postures as the work equipment moves up and down.
It can be changed separately from the lifting / lowering operation of the work equipment.
That the time required to move the marker up and down can be saved
In addition, individual operation tools are not required for each operation.
The number can be reduced. [B] And work was temporarily suspended during the work process
To raise and lower the work equipment, and then resume work.
Does not require automatic marker left / right switching as in
In some cases, the draw marker
The operation order can also be changed using the operating device for this operation.
To change the order of operation of the left and right markers.
No need to search for and operate another tool during operation
Thus, the operation can be easily performed. [C] Lifting and lowering of the working equipment and turning
Selection of a common operator using touch-operated switches.
The work equipment can be lifted and lowered when turning the headland
The time required to operate the operating tool is extremely short.
You. Therefore, the time distracted for the lifting operation
With less loss, it becomes easier to concentrate on steering operation,
Operate the tearing handle properly to move the machine in the desired trajectory.
It is easy to change body direction and perform accurate alignment. [D] Moreover, the operation with this touch-operated switch
Since the implement is located near the handle,
Operation for changing the order of marker operation
Operation without having to release your hands
It is possible to visually control the steering operation.
To perform operations accurately, and
There is an advantage that it can be easily performed with a margin.

The effect of the invention according to claim 2 is as follows.
It is. [E] Disengagement of the work clutch can also be performed
Operation and change of marker operation order can be performed with the same operating tool
As a result, the work can be performed more easily.

In the claims, reference numerals are provided to facilitate comparison with the drawings, but the present invention is not limited to the configuration shown in the accompanying drawings.

[Brief description of the drawings]

FIG. 1 is a control block diagram

FIG. 2 is a front view of a drawing marker support unit.

FIG. 3 is an overall side view of the rice transplanter.

FIG. 4 is a control flowchart.

FIG. 5 is a control flowchart.

[Explanation of symbols]

 2 Working device 16 Lifting operation tool 21 Work clutch 23R, 23L Drawing marker SW1 Forced lifting operation tool

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01C 11/02 A01B 69/02

Claims (2)

(57) [Claims] 1. A left and right line drawing marker (23R) which is connected to a traveling machine so as to be able to drive up and down freely, and which is switchable between an operating posture protruding left and right outward and a retracted posture retracting inward. , a transplanter which has a (23L), elevation operating scan the touch operation type are provided in the vicinity of the steering wheel
The work equipment based on an operation signal from the switch (SW1).
Switch between the state in which the position (2) is raised and the state
A switching device (13), and the lifting / lowering operation switch (SW1) is connected to the working device.
With the rise of (2), left and right drawing markers (23R),
(23L) in a sequential operating state in which the working posture alternates
To sequentially raise the working device (2)
Operation of the drawing markers (23R) and (23L)
Non-sequential operation to change the state and raise the work equipment (2)
The left and right line drawing markers (23R) and (23L)
Operation signal for switching the operation state of the
The control device (13) includes the lifting operation switch (S
If the operation signal of W1) is an output for sequentially operating or a non-sequential operation
Determining means for determining which of the outputs is to be in an operating state
An implanter provided with (B) . 2. An on-state for driving the working device ( 2);
A work clutch (21) is provided which can be switched to a disengaged state for stopping the work device (2), and a disengagement operation of the work clutch (21) is performed by a lifting / lowering operation switch (SW1 ).
2. The transplanter according to claim 1, wherein the transplanter is configured to perform the following.