JP2000166316A - Transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To use both a monitor display for displaying the delivery of a marker with a winker display at the time of travel on a road. SOLUTION: This transplanter such as a sulky rice transplanter 1 is obtained by freely liftably and lowerably supporting a planting part 10 through a link mechanism 8 in a mobile machine body 5 of the sulky rice transplanter 1, installing markers 50R and 50L capable of moving and operating at housed positions where the markers 50R and 50L are lifted and housed according to the lifting and lowering of the planting part 10 and operating positions where the markers 50R and 50L are lowered and delivered to the left and right sides of the machine body 5. When performing planting operations to turn on a planting switch 32, the markers 50R and 50L are alternately delivered to the operating positions. The delivery direction of the markers 50R and 50L is displayed on a screen in a monitoring display part 28 according to the delivery direction of the markers 50R and 50L in a driving operating part. On the other hand, the monitoring display part 28 is used as a winker display for informing the forward direction of the mobile machine body 5 at the time of traveling, etc., on a road for turning of the planting switch 32.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplanter having a marker, and more particularly, to a transplanter in which a monitor display of a marker is also used as a blinker display.

[0002]

2. Description of the Related Art In general, a transplanting machine such as a riding rice transplanter is used in the following process during planting work in order to properly maintain the interval between seedlings of seedlings and improve the straightness of the machine. A marker device for drawing a line serving as a reference line on the field scene is provided.

In the conventional marker device, the mechanical locking member for restricting the feeding to the working position is automatically switched right and left alternately with the raising and lowering operation of the planting portion, so that the mechanism becomes complicated. In addition, in certain cases, the driver must operate a lock member provided below the seat, and complicated work is required. Some of them have made it possible to switch the left and right markers.

[0004] On the other hand, since such a transplanter is also a vehicle, it has a blinker device for notifying the traveling direction of the traveling machine body by a blinker lamp when traveling on a road or the like.

[0005]

However, in the case of a riding rice transplanter provided with a blinker display device using a blinker lamp and a marker device using a marker, a monitor display unit for displaying the extension of the marker on a driving operation unit, and a traveling body If the monitor display unit of the turn signal for notifying the traveling direction of the camera is provided separately, the display becomes similar, which is confusing.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide a transplanter which has both a monitor display for displaying the advance of a marker and a blinker display for driving on a road. Is to do.

[0007]

According to a first aspect of the present invention, a working unit (10) is connected to a traveling body (5) having a driver's seat (9) via a link mechanism (8).
And a marker (50) that can be freely moved up and down and can be moved between a non-working position in which the working unit (10) is moved up and down as the working unit (10) is raised and retracted and a working position in which the working unit is lowered and fed to the side of the machine.
In the transplanting machine (1) provided with a monitor, the operation section includes a monitor display section (28) for visually displaying the extension of the marker (50), and the monitor (28) monitors the marker (50). The display is also used as a blinker display for notifying the traveling direction of the traveling body (5).

[0008] The invention according to claim 2 is a method according to claim 2, wherein the marker (5
The monitor display and the blinker display of 0) can be switched by operating a work machine switch (32) which is operated during operation to enable various monitors and an alarm device.

According to the present invention, the marker (50) is raised and stored in the non-working position and the side of the machine in accordance with the present invention. In the driving operation unit, the moving direction of the marker (50) is displayed on the screen by the monitor display unit (28). On the other hand, when the transplanting machine (1) travels on the road, the monitor display section (28) is also used as a blinker display for notifying the traveling direction of the traveling body (5), so that both the marker display and the blinker display for displaying the directions are performed. Need not be provided redundantly.

The reference numerals in parentheses described above are for referring to the drawings, and do not limit the present invention.

[0011]

Embodiments of the present invention will be described below with reference to the drawings.

As shown in FIG. 1, the riding rice transplanter 1 has a traveling body 5 supported by a front wheel 2 and a rear wheel 3, and the traveling body 5 has a hood 4 at a front portion of the front wheel.
An engine 6 is mounted inside the vehicle, and a driver's seat 9 having a seat 7 is provided at an intermediate portion of the traveling machine body 5 in the front-rear direction. At the side of the seat 7, a manual operation lever 17 is provided.
This manual operation lever 17 is operable along the lever guide 21 at each position of “up”, “fixed”, “down (automatic)”, and “planting (automatic)”. .

At the rear of the traveling machine body 5, a planting section 10 as a working section is supported via a lifting link mechanism 8 so as to be movable up and down.
4 and a seedling mounting table 12 on which mat seedlings can be mounted in the vertical direction. Markers 50 (R, L) are attached to both left and right ends of the planting section 10. The left and right markers 50 (R, L) can be alternately switched by an operation between a working position in which the planting section 10 is lowered and extended to the machine side as the planting section 10 moves up and down, and a non-working position in which the plant is raised and stored.
In the work position, it is possible to draw the traveling reference line of the traveling machine body 5 on the field scene.

A hydraulic cylinder device 19 is disposed between the traveling body 5 and a link bracket 44 fixed to the lifting link mechanism 8, and the lower portion of the seat 7 is operated based on the operation of the manual operation lever 17. The hydraulic control valve 35 is controlled via a control unit 39 disposed in the rear cover 26 of the vehicle, and the hydraulic cylinder device 19 is controlled to expand and contract by the hydraulic control valve 35, so that the planting unit 10 moves up and down. The manual operation lever 17
Is detected by the lever position detecting potentiometer 42, and the hydraulic control valve 35 is controlled via the control unit 39 according to the detected value.

As shown in FIG. 2A, a steering wheel 13 is provided in front of the driver's seat 9 and a hand-operated lever 38 is attached to a switch box 51 of the steering column 13a. .

The hand operation lever 38 is urged by a resilient member (not shown) so as to automatically return to a reference position shown in the drawing when the hand is released, and can be operated up and down around the reference position. At the same time, it is possible to operate in the longitudinal direction of the machine independently of the up / down operation. In the switch box 51, a changeover switch 43 for detecting the vertical position of the hand control lever 38 in order to control the planting section 10.
And a mode changeover switch 52 and a direction changeover switch 53 for detecting the front and rear positions of the hand control lever 38 to control the extension of the marker 50 (R, L).

When the hand operation lever 38 is operated once upward from the reference position, the operation is detected by the changeover switch 43, and the planting section 10 is controlled to rise through the control section 39 ( Similarly, if the operation is performed once downward, the planting unit 10 is controlled to be lowered (lower position). If the operation is performed once more downward from the lower position, the planting unit 10 is moved to the planting position (planting position). ) Is controlled.

When the hand operation lever 38 is operated rearward in the longitudinal direction of the body (the direction A in FIG. 2), the operation is detected by the direction changeover switch 53 and the marker 50 is controlled via the control unit 39. The dispensing mode (described later) is set to the automatic mode, and the dispensing direction of the left and right markers 50 to the left and right working positions is sequentially and selectively switched for each operation in the same direction. Further, the hand operation lever 3
When the player 8 is operated forward (in the direction B in FIG. 2), the operation is detected by the mode changeover switch 52, and the feeding mode of the marker 50 is sequentially switched to the stop mode or both modes via the control section 39.

That is, as shown in FIGS. 2A to 2C, in the marker control, when the hand operation lever 38 is operated once backward (in the direction A) from the reference position, the extension of the marker 50 causes the planting portion to move. In the automatic mode, the right marker 50R is advanced to the working position in the initial state, and when the operator again operates in the same direction, the left marker 50
L is set to a mode in which it is fed to the work position, and the mode is sequentially switched from right to left to right to every time the operation is performed once (see FIG. 2B).

When the hand operation lever 38 is operated once (forward in the direction B) from the reference position, a stop mode (OFF mode) for stopping the extension of the marker 50 is obtained. Both of the modes 50 are moved to the working position, and each time the operation is performed, the mode is sequentially switched from the stop mode to the both mode, the stop mode, and so on (see FIG. 2C).

Next, the elevation control of the planting section 10 will be described with reference to FIG.

When the hand control lever 38 is operated, the valve operating mechanism 22 arranged in the rear cover 26 is operated,
The hydraulic control valve 35 is operated by the valve operating mechanism 22 to control the elevation of the planting section 10.

The valve operating mechanism 22 has a cam rotation motor 41, which is engaged with the flat cam 30 via the small gear 23. This flat cam 30
Is connected to a hydraulic control valve 35 via a valve operation plate 36, and the hydraulic cylinder device 19 is expanded and contracted by the rotation of the hydraulic control valve 35.

On the other hand, the hand operation lever 38 is
Is electrically connected to the cam rotation motor 41 via the control lever 43. When the hand operation lever 38 is operated in the up and down direction, the operation content is determined by the above-described changeover switch 43 (see FIGS. 2 and 7). . Thereby, the changeover switch 43
The flat cam 3 is driven by the cam rotation motor 41 according to a control signal from the
0 is rotated, the hydraulic cylinder device 19 is expanded and contracted via the hydraulic control valve 35, and the planting unit 10 is controlled to be raised and lowered via the lifting link mechanism 8.

According to the present invention, the marker 50
A monitor display section for visually displaying the feeding of the marker, and the monitor display of the marker 50 by the monitor display section is also used as a blinker display for notifying the traveling direction of the traveling machine body 5. The display and the blinker display can be switched by operating the work equipment switch.

FIG. 4 shows a display panel 28 provided on the front surface of the operation section.

The display panel 28 is provided with various monitor lamps and alarm lamps. When the planting switch 32 disposed below is turned on, these monitor lamps and alarm lamps become operable. Therefore, during the planting operation, the operation is performed with the planting switch 32 turned on. When the planting switch 32 is turned on and the marker 50 is extended and the planting operation is performed, the monitor lamp 55 (R, L) on the extended side is turned on.

That is, for example, while the marker 50 is being operated in the automatic mode, the right monitor lamp 55R is turned on when the right marker 50R is extended, and the left monitor 50L is extended when the left marker 50L is extended. Monitor lamp 55
L is lit, and both left and right markers 50R,
When L is extended, both monitor lamps 55R, 55R
L lights up.

On the other hand, blinker lamps 54 for notifying the traveling direction of the traveling machine body 5 are provided on both left and right sides of the traveling machine body 5.
(R, L) (see FIGS. 1 and 7)
For example, when the hand control lever 38 is operated once in the direction A in FIG. 2A while the planting switch 32 is in the off state during traveling on the road, the right turn signal lamp 54R for notifying the right turn of the traveling machine body 5 blinks. And the display panel 28
The monitor lamp 55R on the right side of the LED also flashes. When the hand operation lever 38 is operated once more in the same direction, the left blinker lamp 54L for notifying the left turn of the traveling machine body 5 blinks, and the left monitor lamp 55 of the display panel 28.
L also flashes.

That is, in the present embodiment, the marker 50
And the monitor display of the blinker 54 can be switched by operating the planting switch 32. As described above, it is not necessary to separately provide the monitor display component of the marker 50 and the monitor display component of the blinker 54 that both indicate the direction (extending direction and running direction), and the number of components can be reduced.

Next, a control mechanism of the marker 50 will be described with reference to FIGS.

The marker raising mechanism 40 in FIG. 5 raises the marker 50 (R, L) which has been lowered to the working position as the planting section 10 is raised by the lifting link mechanism 8, raises the marker 50 (R, L) to the non-working position, and stores it. Is what you do.

The marker pulling mechanism 40 is provided below the seat 7, and a pin 57 is erected on a base plate 56 on the machine body side. A switching lever 58 is rotatable on the pin 57. Axle-mounted. The switching lever 58 has a substantially L-shaped cross section, has a tongue piece 59 protruding laterally, and has holes 60, 60 formed at substantially right and left symmetric positions about the pin 57, respectively. .

On the other hand, a marker switching motor 46 is disposed near the side of the switching lever 58, and an operating arm 48 is fixed to the motor shaft 46a. When the operating arm 48 rotates clockwise or counterclockwise, the leading end thereof comes into contact with the tongue piece 59 to press and urge the switching lever 58 in the same direction about the pin 57. Rotate. A limit switch 4 for detecting an initial position (home position) of the operation arm 48 is provided beside the marker switching motor 46.
The switch 9 is turned on / off by pressing the contact of the limit switch 49 or the like with the rotation of the operation arm 48.

For example, based on a command to feed out the right marker 50R from the control unit 39, the marker switching motor 4
6 makes one rotation clockwise in FIG. 5 from the initial position, returns to the original position, and stops. At this time, the operating arm 48 also rotates in the same direction, and the operating arm 48 presses and biases the tongue piece 59 of the switching lever 58.

Thus, the switching lever 58 is moved to the pin 57
, And pull the right rod 64 rightward in the drawing. Then, the right cam 62 rotates clockwise in FIG. 6 around the shaft 61, and the engagement between the projection 62 a and the pin 69 of the right arm 67 is released. Thus,
The right arm 67 rotates clockwise about the fulcrum shaft 68, the connecting pin 72 at the tip rotates in the same direction, the inner wire 73a is pulled by the spring force, and the right marker 50R is extended to the working position.

On the other hand, when the traveling machine body 5 reaches the headland by the planting traveling, and when the traveling machine body 5 is turned on the headland, the hydraulic cylinder device 19 is operated and the planting section 10 is raised.
Since the link bracket 44 fixed to the base of the elevating link mechanism 8 rotates clockwise about the axis 86, the plate 78 is pulled to the left in FIG. 6 and the bracket 76 moves clockwise about the horizontal axis 75. , And the roller 77 lifts the roller receiver 70 of the arm 67. Then, the arm 67 rotates counterclockwise about the fulcrum shaft 68,
Pull the inner wire 73a through the connecting pin 72,
The right marker 50R is raised to store the right marker 50R in the non-working position.

Next, the traveling body 5 is rotated to move the planting section 10.
Is lowered, and the lift angle potentiometer 87 (see FIG. 1)
When it is detected that the planting unit 10 has been lowered to the predetermined position, the controller 39 issues a command to feed the left marker 50L opposite to the above when the marker feeding mode is the automatic mode. Based on this command, Marker switching motor 46
Rotates one turn in the counterclockwise direction in FIG. 5 from the initial position, returns to the original position, and stops. At this time, the operating arm 48 also rotates in the same direction, and the operating arm 48 presses and biases the tongue piece 59 of the switching lever 58. As a result, the switching lever 58 swings clockwise about the pin 57 and the left rod 64
To the right of the drawing, and the left marker 5
0L is extended to the working position.

FIG. 7 is a control block diagram of the present embodiment. The control section 39 has a microcomputer (hereinafter referred to as a CPU). The CPU has a changeover switch 43 for controlling the planting section. The signals from the mode changeover switch 52 for marker control, the direction changeover switch 53, the limit switch 49, the planting switch 32, and the lift angle potentiometer 87 are inputted, and the CPU rotates the planting unit 10 by the CPU. The motor 41, the marker 50, the monitor lamps 55L and 55R of the blinker 54, and the marker switching motor 46 are controlled. The lift angle potentiometer 87 detects the elevation position of the planting section 10.

Next, the operation of the present embodiment will be briefly described.

At the time of the planting operation, the planting switch 32 is turned ON, and the marker 5 is operated by operating the hand operation lever 38.
When the planting operation is performed with 0 set to the automatic mode, the right-hand arrow is displayed on the display panel 28 of the driving operation unit when the right marker 50R is extended.

[0042]

[Outside 1] The monitor lamp 55R indicated by the arrow lights up, and the left marker 50R
Left arrow when L is extended

[0043]

[Outside 2] Is turned on (see FIG. 4).

During traveling on the road, the planting switch 32
Is turned OFF, and in this state, when the traveling body 5 is turned right, the hand operation lever 38 is operated backward and the marker 5 is turned.
When the automatic mode is set to 0 right, the blinker lamp 54R blinks and the monitor lamp 55R of the display panel 28 blinks. Further, when the traveling machine body 5 is turned left, when the hand operation lever 38 is operated backward again to set the marker 50 to the automatic mode left, the blinker lamp 54L blinks and the monitor lamp 55L of the display panel 28 is displayed. Flashes. As described above, by using the monitor display of the marker 50 and the monitor display of the blinker 54, both of which display the directions, the display panel 2 of the operation unit can be used.
8 can be simplified.

Next, FIG. 8 shows a flow chart of an embodiment in which, when the operation by the hand operation lever 38 is possible, an operation sound is emitted in accordance with the operation.

Thus, the operator can grasp whether or not the lever operation has been received not only visually but also by hearing, and the workability is improved.

In FIG. 5, in S100, the presence or absence of lever operation by the hand operation lever 38 is determined. If there is no lever operation, the process proceeds to S102.
In, it is determined whether or not the lever operation is the same between the current time and the previous time. If the lever operation is different between the current operation and the previous operation, the process proceeds to S106. If the lever operation is the same between the current operation and the previous operation, the process proceeds to S102. In this S102,
It is determined whether or not the planting waiting flag is set. If the flag is not set, the process proceeds to S131, and if it is set, it is determined in S103 whether the lowering flag is set. If the lowering flag is set, the process proceeds to S131. If the lowering flag is not set, the hydraulic cam position is set to the "planting" position (S104), the planting waiting flag is cleared (S105), and the process proceeds to S131. .

In S106, it is determined whether or not the position of the flat cam 30 (hereinafter referred to as "hydraulic cam") is at the "fixed" position. If so, the process proceeds to S107. This S10
At 7, it is determined whether the lever operation by the hand operation lever 38 is up or down, and if it is down, the buzzer sounds a short sound (S108), and the hydraulic cam position is set to "down" (S10).
9) Then, a lowering flag is set (S110), and S1 is set.
Go to 31. Also, in S107, if the lever operation is on the up side, it is determined in S111 whether or not the planting section 10 is at the highest position. If it is at the highest position, the process proceeds to S131. A short sound is emitted (S112), the hydraulic cam position is set to "raise" (S113), and the process proceeds to S131.

Further, in S114 described above, it is determined whether or not the hydraulic cam position is at the "raised" position. If the hydraulic cam position is not at the "raised" position, the process proceeds to S120.
Proceed to 15. In S115, it is determined whether the lever operation is up or down. If it is up, the process proceeds to S131, and if it is down, the process proceeds to S116. In this S116, it is determined whether or not the planting section 10 is at the highest position. If the planting section 10 is not at the highest position, the process proceeds to S131. "Lower" (S1
18) The lowering flag is set (S119), and S13
Proceed to 1.

Next, in S120, it is determined whether the hydraulic cam position is at the "lower" position or the "planting" position. If the hydraulic cam position is at the "planting" position, the process proceeds to S128, and the "lower" position is determined. If there is, go to S121. In this step S121, it is determined whether the lever operation is up or down.
Then, the buzzer sounds a short sound (S122), the planting waiting flag is set, and the process proceeds to S131. If the lever operation is up on S121, the process proceeds to S124, the planting waiting flag is cleared, and the process proceeds to S125. In S125, it is determined whether or not the lowering flag is set. If the lowering flag is set, the process proceeds to S131. If the lowering flag is not set, the process proceeds to S126 and a short buzzer is sounded.
The hydraulic cam position is set to “up” (S127), and the process proceeds to S131.

Further, in S128 described above, it is determined whether the lever operation is on the up side or on the down side. If the lever side is on the down side, the process proceeds to S131, and if it is on the up side, a short buzzer sounds in S129 to lower the hydraulic cam position. (S130), and the process proceeds to S131.

In step S131, the current position of the planting unit 10 is determined. If the planting unit 10 is being executed, the process returns to the first step. If the planting unit 10 is in contact with the ground, the lowering flag is cleared in step S132. I do.

In the above, the planting section 10 is moved up and down and the planting clutch is turned on and off by operating the hand operation lever 38 up and down. However, a buzzer can be sounded according to the operation of the hand operation lever 38. Also, the buzzer sound can be changed between the raising direction and the lowering direction.

For example, when the hand operation lever 38 is operated from the “planting” position to the “lower” position, a buzzer sound “beep” is generated as the buzzer sound in the raising direction, and a “beep” sound is generated from the “lower” position to the “up” position. Buzzer sound "pip-pip", and buzzer sound "pip-pip" when the hand-operated lever 38 is moved from the "lower" position to the "planting" position as a lowering buzzer sound. Can also.

The hand control lever 38 can be operated only when the planting switch 32 is ON and the manual operation lever 17 is at the "planting" position, and controls the planting section 10 to move up and down. The cam position (hydraulic cam position) of the flat cam 30 can be monitored and displayed on the display panel 28 of the operation unit by changing the blinking cycle. This is because only the on / off state of the planting clutch is displayed on the conventional display panel 28, but when the hand operation lever 38 is provided,
This is because the position of the hydraulic cam is not clear and the operator is confused.

Thus, for example, if the hydraulic cam position is "planting"
When the planting clutch is in the position, the display panel 28
, And when the hydraulic cam position is “up” or “fixed” based on the operation of the hand operation lever 38, the planting monitor lamp blinks once per second. When the hydraulic cam position is in the "down" position, the planting monitor lamp blinks twice a second to make it clear whether or not the hand-operated lever 38 can be operated and the state of the hydraulic cam position at the time of operation.

[0057]

As described above, according to the first aspect of the present invention, the monitor display of the marker by the monitor display unit for visually displaying the advance of the marker is also used as the blinker display for notifying the traveling direction of the traveling body. Thus, the monitor display unit of the operation unit can be simplified. Further, since it is not necessary to separately provide a component for displaying a monitor and a component for displaying a blinker that both display the direction, the number of components can be reduced.

According to the second aspect of the present invention, the monitor display and the blinker display of the marker can be switched by operating the work machine switch, so that the work machine switch is turned on during the work. For example, the display at this time becomes a monitor display that indicates the advance of the marker, and when the work equipment switch is turned off during non-work such as traveling on the road,
Since the display at this time is a blinker display notifying the traveling direction of the aircraft, the two displays can be distinguished by a simple operation.

[Brief description of the drawings]

FIG. 1 is a side view schematically showing a riding rice transplanter to which the present invention is applied.

2A is a perspective view showing the appearance of a steering wheel and a hand-operated lever attached below the steering wheel, FIG. 2B is a diagram showing a switching order of a marker dispensing direction, and FIG. 2C is a switching order of a marker dispensing mode. FIG.

FIG. 3 is a side view showing an overall configuration of a hydraulic control mechanism used in the riding rice transplanter.

FIG. 4 is a diagram illustrating an appearance of a display panel provided in a driving operation unit.

FIG. 5 is a plan view of a marker pulling mechanism.

FIG. 6 is a side view of the marker pulling mechanism.

FIG. 7 is a configuration block diagram of a control unit.

FIG. 8 is a diagram showing a flowchart of an embodiment in which an operation sound is emitted in accordance with an operation when an operation with a hand operation lever is possible.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Riding rice transplanter 5 Traveling body 8 Elevating link mechanism 9 Driver's seat 10 Planting part 22 Valve operating mechanism 28 Display panel 30 Flat cam 32 Planting switch 38 Hand operation lever 39 Control part 40 Marker pulling-up mechanism 41 Cam rotation motor 50R, 50L Left and right markers 54R, 54L Turn indicators 55R, 55L Monitor lamps

Continuation of the front page (72) Inventor Chie Mizutani 667, Iyacho, Izumo-cho, Higashiizumi-cho, Yatsuka-gun, Shimane 1 F term in Mitsubishi Agricultural Machinery Co., Ltd. (Reference) 2B043 AA01 AB02 BA02 BB06 CB15 DA07 EC02 EE01 EE02 EE06 EE08 2B062 AA14 AB01 BA26 BA33 BA34 BA36 BA38 BA62 CA02 CA05 CA14

Claims (2)

[Claims] A work unit is supported on a traveling body having a driver's seat by a link mechanism so as to be able to move up and down via a link mechanism. In the transplanting machine provided with a marker that can be moved to and from the position, the driving operation unit includes a monitor display unit that visually displays the unreeling of the marker, and the monitor display of the marker by the monitor display unit, A transplanter, which also serves as a blinker display for indicating the direction of travel. 2. The monitor display and the blinker display of the marker can be switched by operating a work equipment switch that is operated during operation to enable various monitors and an alarm device. 2. The transplanter according to 1.