JP4750298B2 - Rice transplanter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a rice transplanter , and more specifically, a seedling planting device provided with a ground pressure sensor is connected to a rear portion of the self-propelled main body so as to be movable up and down so that the ground pressure of the ground pressure sensor is maintained within a set range. And a lifting / lowering means that can be switched between an automatic raising / lowering state for automatically raising / lowering the seedling planting device and a forced raising state for raising the seedling planting device in preference to the ground pressure sensor, and a transmission system to the seedling planting device A pair of left and right switches that can be switched between a working posture that projects outwardly to the left and right to form a running index line on the next planned planting surface and a retracted posture that is retreated inwardly to the left and right. A marker marker is provided, and marker storage means is provided for switching the fixed marker in the working posture to the retracted posture based on the forced rise of the seedling planting device, and is swingable along two directions orthogonal to each other. Energize to be located at the intersection The multi-function operating tool is provided, and the lifting means is switched to a forced ascending state in accordance with the ascending operation movement from the crossing portion along one swinging direction of the multi-function operating tool to the one side. The lifting / lowering means is configured to be switched to the automatic lifting / lowering state in accordance with the lowering operation movement from the intersecting portion along the one swinging direction of the operation tool to the other side, and the other swinging direction of the multi-function operation tool The marker storage means is operated in a state of releasing the fixation with respect to one drawing marker in accordance with the marker moving operation from the crossing portion to one side along the other swinging direction of the multi-function operating tool. The marker storing means is operated so as to be released from being fixed to the other drawing marker in accordance with the marker moving operation from the crossing portion to the other side.
[0002]
[Prior art]
Conventionally, an on / off operation switch that is operated by the multifunctional operation tool that operates to move out the marker and that engages and operates the planting clutch is provided to activate and operate the planting clutch.
[0003]
Further, conventionally, when the multifunctional operation tool is moved upward, the seedling planting device rises to the upper limit of the lifting range and stops, and when the multifunctional tool is moved downward, the ground pressure sensor is grounded. The seedling planting device was lowered until the pressure was maintained within the set range.
[0004]
[Problems to be solved by the invention]
However, the conventional technique has the following drawbacks.
[0005]
In the seedling planting mode, first, there is a mode in which planting traveling is performed after traveling without forming planting and forming a headland. In such a case, in the above-described conventional technique in which the planting clutch is engaged and operated by the marker operation of the multifunctional operation tool, the planting clutch is engaged when the multifunction marker is operated to switch the drawing marker to the working position. Because it works, when running without first planting work to form a headland, it is necessary to run without switching the marker to the working posture, and it is not possible to form a travel indicator line on the next scheduled travel surface .
[0006]
[0007]
An object of the present invention is to eliminate the above-mentioned conventional drawbacks.
[0008]
[Means for Solving the Problems]
The features / actions / effects of the rice transplanter according to the first aspect of the present invention are as follows.
[0009]
[0010]
[0011]
[0012]
[0013]
[0014]
[0015]
[0016]
[0017]
〔Characteristic〕
Automatic raising / lowering of a seedling planting device that is connected to a rear part of the self-propelled machine so that the planting device equipped with a ground pressure sensor can be raised and lowered and the ground pressure of the ground pressure sensor is maintained within a set range. And a raising and lowering means that can be switched between a state and a forced raising state that raises the seedling planting device in preference to the ground pressure sensor, and a planting clutch that interrupts transmission in the transmission system to the seedling planting device. And a pair of left and right drawing markers that can be switched between a working posture that projects outwardly to the left and right and forms a travel indicator line on the next planting surface to be planted and a retracted posture that is retracted inwardly to the left and right, Marker storage means for switching the drawing marker in the acting posture to the retracted posture based on the forced rise and fixing it is provided, and oscillated along two directions orthogonal to each other and urged to be positioned at the intersection. A multi-function operation tool is provided. The lifting means is switched to the forcibly raised state along with the lifting operation movement from the intersection along the one swinging direction of the functional operation tool to the one side and along the one swinging direction of the multi-function operation tool. The raising and lowering means is switched to the automatic raising / lowering state in accordance with the lowering operation movement from the intersecting portion to the other side, and from the intersecting portion along the other swinging direction of the multi-function operating tool to the one side. The marker storage means is operated to release the fixed state with respect to one drawing marker in accordance with the marker moving operation, and the marker is moved from the crossing portion along the other swinging direction of the multi-function operating tool to the other side. in planting machine is arranged to operate the marker storage means in a state of releasing the fixing for the other drawing marker with the operation movement, operated by the rocking operation of the multi-functional operation device for operating the dynamic for the marker out Is an incoming operation switch for operating enters the planting clutch provided, the multifunctional operation in a restraining state for restraining the operation enters the planting clutch be operated enters this enters operation switch and restraining release state It lies in that is a dedicated operation device for said restraining state which is configured to be freely replaced Ri switch by swinging operation and another operation fixings switching between said restraint releasing state.
[0018]
[Action]
Since there is an on / off switch that is operated by a multi-function operating tool that moves and operates the marker clutch, it can be activated by simply moving the multi-function operating tool for marker operation. At the same time, the line drawing marker is switched to the action posture, and a traveling index line to the next planting planned surface can be formed while performing planting traveling.
[0019]
In addition, even if the on / off switch is turned on, an operation tool that can be switched between a state in which the on / off operation of the planting clutch is restrained and a state in which the restraint is released by a swing operation of the multifunctional operation tool and another operation is provided. Since the multi-function operation tool for moving out the marker can be operated to control the engagement operation of the planting clutch even if the operation switch is operated, the line drawing marker can be operated without entering and operating the planting clutch. Can be switched to the action posture.
[0020]
〔effect〕
Therefore, it is possible to form a travel index line on the next planting planned surface during normal planting travel, and of course, first adopted a form in which planting travel is performed after running without planting work and forming a headland. Even if it is a case, with the traveling for headland formation without the first planting, it is possible to form a traveling index line on the next planned planting surface, and to promote the diversification of work .
[0021]
The characteristics of the rice transplanter according to the second aspect of the present invention are as follows.
[0022]
〔Characteristic〕
In the rice transplanter according to the first aspect of the present invention, a check switch that is turned on and off by the operation tool is provided, and the switch is switched to the check state when the check switch is turned on, and based on the turn-off of the check switch. A check control device for switching to the check release state is provided.
[0023]
[0024]
[0025]
[0026]
DETAILED DESCRIPTION OF THE INVENTION
[Reference form]
As shown in FIG. 1, the rice transplanter is connected to a rear portion of the self-propelled main machine 1 in a manner that it can be moved up and down via a four-link mechanism 3 in association with the supply of pressure oil. A hydraulic lift cylinder 4 is provided as an actuator of an elevating means that raises the seedling planting device 2 and lowers the seedling planting device 2 with its own weight in accordance with drainage.
[0027]
The self-propelled main machine 1 has an engine 5 mounted on the front and a driver seat 6 mounted on the rear, and has a pair of left and right steering front wheels 7 and a pair of left and right driving rear wheels 8. A steering handle 9 for steering the front driving wheel 7 is disposed in front of the driver seat 6. A handle post 10 of the steering handle 9 is provided with a lever-like multi-function operating tool 11 (hereinafter referred to as a lever-like multifunction operating tool 11). Multifunction lever) is attached.
[0028]
As shown in FIGS. 2 and 4, the multifunction lever 11 is urged so as to be operated along two directions orthogonal to each other and located at the intersection. Specifically, it can be swung up and down around the horizontal axis, and can be swung back and forth around the vertical axis, and beyond the rising position U above the intersection. An ascending stop position US obliquely above (a direction different from the up-down direction and the front-rear direction) and a descending stop position obliquely below (a direction different from the up-down direction and the front-rear direction) beyond the descending position D below the intersection. The DS can be operated and moved.
[0029]
The seedling planting device 2 is configured to move up and down between a seedling bed 12 that reciprocates with a set stroke in the left-right direction, and a seedling outlet from the seedling bed 12 and the rice field in conjunction with the movement of the seedling bed 12. The planting mechanism 13 takes out one stock from the seedling platform 12 and cultivates it on the rice field, and a plurality of left and right leveling floats 14 that slide on the rice field and level the planned rice field as it travels. As shown in FIG. 2, one of the leveling floats 14 swings up and down in accordance with the fluctuation of the ground pressure, and the vertical rocking position is set as the ground pressure through the potentiometer 15a. The ground pressure sensor 15 for outputting is also used as a configuration. In addition, the seedling planting device 2 has a pair of left and right lines that can be switched between an action posture that protrudes outward in the left and right directions to form a travel indicator line ML on the next planting surface and a retracted posture that retreats in the left and right directions. A marker 16 is attached.
In addition, an electric planting clutch 17 that interrupts the transmission is interposed in the transmission system to the seedling planting device 2.
[0030]
The elevating means automatically raises and lowers the seedling planting device 2 so that the ground pressure of the ground pressure sensor 15 is maintained within a set range, and the seedling planting device 2 has priority over the ground pressure sensor 15. The lift control device A is a means provided with a lift control device A that can be switched to a forced rise state that raises the lift to the upper limit of the lift range, and the lift control device A uses the upper limit sensor 18 that the seedling planting device 2 has been raised to the upper limit. When detected, the control valve 19 for the lift cylinder 4 is operated to a neutral state to switch to a lift stop state.
[0031]
Then, the rice transplanter switches the marker 16 in the acting posture to the retracted posture based on the forced rise of the seedling planting device 2 and fixes it to the retracted posture, and the operation tool 20 different from the multifunction lever 11. And various switches and a microprocessor-based control device B including the lifting control device A for the lifting means.
[0032]
The marker storage means utilizes the displacement of the seedling planting device 2 with respect to the self-propelled main machine 1 accompanying the forced rise of the seedling planting device 2 as shown in FIGS. A pulling wire 21 that pulls the drawing marker 16 in the working posture by pulling operation to the retracted posture, and the quadruple link mechanism 3 attached to the quadruple link mechanism 3 as the seedling planting device 2 is lifted. A pulling link 21a for pulling the pulling wire 21 by being pressed and swung by the arm 3a, and when the drawing marker 16 is switched to the retracted position, the drawing marker 16 is automatically engaged to draw the drawing marker. A lock claw 22 is provided to hold 16 in the retracted posture. The drawing marker 16 is urged toward the action posture, and is attached to the action posture when the pulling wire 21 is loosened as the seedling planting device 2 is lowered in the state where the holding by the lock claw 22 is released. It is switched by power. Then, an electric left release actuator AL that temporarily releases the lock claw 22 for the left line drawing marker 16 and an electric right release actuator AR that temporarily releases the lock claw 22 for the right line draw marker 16. And are provided.
[0033]
The operation tool 20 is attached to the operation portion of the multi-function lever 11 so as to be rotatable around a lever axis.
[0034]
The first of the switches is a lift / clutch disengagement switch 23 that is operated by the multi-function lever 11 when the multi-function lever 11 is swung in the up / down direction U from the intersection.
[0035]
The second of the switches is a lowering switch 24 that is operated by the multi-function lever 11 when the multi-function lever 11 is swung up and down from the intersection to the lowering position D.
[0036]
The third of the switches is a left marker switch 25L that is operated by the multi-function lever 11 when the multi-function lever 11 is swung laterally from the intersection to the front position L.
[0037]
The fourth of the switches is a right marker switch 25R that is operated by the multifunction lever 11 when the multifunction lever 11 is swung laterally from the intersection to the rear position R.
[0038]
The fifth of the switches is a clutch engagement switch 26 that is operated by the operation tool 20 when the operation tool 20 is rotated to the clutch engagement position.
[0039]
The sixth switch is a lift stop switch 27 that is operated by the multifunction lever 11 when the multifunction lever 11 is operated to the lift stop position US.
[0040]
The seventh of the switches is a descent stop switch 28 that is operated by the multi-function lever 11 when the multi-function lever 11 is operated to the descent stop position DS.
[0041]
The control device B has a function of switching the elevating control device A to a forcibly elevated state when the ascent / clutch disengagement switch 23 is operated by the multi-function lever 11, and disengaging the planting clutch 17; When the switch 24 is operated by the multi-function lever 11, the function of switching the elevating control device A to the automatic elevating state, and when the left marker switch 25 L is operated by the multi-function lever 11, the left release actuator AL is A function for releasing operation, a function for releasing the right release actuator AR when the right marker switch 25R is operated by the multi-function lever 11, and a case where the clutch-containing switch 26 is operated by the operation tool 20. The function to engage and actuate the planting clutch 17 and the lift stop switch 27 is a multifunction lever 1 A function of switching the lift control device A to the lift stop state in preference to the lift / clutch disengagement switch 23, and the ground pressure when the lower stop switch 28 is operated by the multi-function lever 11. A function of switching the lifting control device A to a lift stop state in preference to the sensor 15. That is, a stop unit is configured to switch the lift unit to the lift stop state in accordance with an operation movement of the multifunction lever 11 in a specific direction different from the two directions.
[0042]
According to the above-mentioned reference form, by operating the lowering switch 24 with the multi-function lever 11 and operating the left marker switch 25L or the right marker switch 25R with the multi-function lever 11, as shown in FIG. The running index line ML can be formed on the next planting planned surface with the drawing marker 16 switched to the action posture at the time of running for headland formation performed without operating the attaching device 2. On the other hand, the multi-function lever 11 is used to operate the lowering switch 24, the multi-function lever 11 is used to operate the left marker switch 25 </ b> L or the right marker switch 25 </ b> R, and the operation tool 20 is used to operate the clutch engagement switch 26. Attached traveling can be performed, and at that time, the traveling index line ML can be formed on the next planting planned surface with the drawing marker 16 switched to the action posture.
Further, when the multifunctional lever 11 is operated to the forcibly raised position and the raising / clutch disengagement switch 23 is operated to raise the seedling planting device 2, the multifunctional lever 11 is operated to the elevated stop position and the elevation stop switch 27 is By operating, the seedling planting device 2 can be stopped and held at an arbitrary position within the lifting range. On the other hand, when the multifunctional lever 11 is operated to the lowered position and the seedling planting device 2 is lowered by operating the descending switch 24, the multifunctional lever 11 is operated to the descending stop position and the descending stop switch 28 is operated. The seedling planting device 2 can be stopped and held at any position within the lifting range.
[0043]
Embodiment of the present invention
In the embodiment of the present invention, in the above-described reference embodiment, the clutch engagement switch 26 is abolished. Instead, as shown in FIG. 6, when the multifunction lever 11 is operated in the front position L and the rear position R, the multifunction lever 11 is provided, and an on / off switch 29 for operating the planting clutch 17 is provided. A check state and a check release state for checking the on / off operation of the planting clutch 17 even when the on / off switch 29 is operated. It is provided with a check means which can be switched freely.
[0044]
The check means includes a check switch 30 that is turned on / off by the operation tool 20, and switches to a check state when the check switch 30 is turned on and switches to a check release state when the check switch 30 is turned off. A check control device 31 to be replaced is incorporated in the control device B.
Since other configurations are the same as those of the above-described reference embodiment, description thereof is omitted.
[0045]
According to this embodiment, the lowering switch 24 is operated by the multi-function lever 11 and the left marker switch 25L or the right marker switch 25R is operated by the multi-function lever 11 with the checking means switched to the checking state. Thus, the travel indicator line ML can be formed on the next planting planned surface with the drawing marker 16 switched to the action posture at the time of traveling for headland formation performed without operating the seedling planting device 2. On the other hand, in the state where the check means is switched to the check release state, the lowering switch 24 is operated by the multi-function lever 11, and the left marker switch 25L or the right marker switch 25R is operated by the multi-function lever 11, thereby At that time, the running index line ML can be formed on the next planting planned surface with the drawing marker 16 switched to the action posture.
[0046]
[0047]
[Brief description of the drawings]
[Fig. 1] Side view of rice transplanter in reference mode [Fig. 2] Control block diagram in reference mode [Fig. 3] Side view of main part showing drawing marker pulling action [Fig. 4] Multi-function lever operation mode FIG. 5 is a plan view showing a working mode. FIG. 6 is a control block diagram showing an embodiment of the present invention.
DESCRIPTION OF SYMBOLS 1 Self-propelled machine 15 Ground pressure sensor 2 Seedling planting device 17 Planting clutch 16 Line drawing marker ML Traveling indicator line 11 Multifunctional operation tool 20 Operation tool 23 Clutch disengagement switch 29 Operation switch
30 check switch
31 check control device

Claims (2)

Automatic raising / lowering of a seedling planting device that is connected to a rear part of the self-propelled machine so that the planting device equipped with a ground pressure sensor can be raised and lowered and the ground pressure of the ground pressure sensor is maintained within a set range. And a raising and lowering means that can be switched between a state and a forced raising state that raises the seedling planting device in preference to the ground pressure sensor, and a planting clutch that interrupts transmission in the transmission system to the seedling planting device. And a pair of left and right drawing markers that can be switched between a working posture that projects outwardly to the left and right and forms a travel indicator line on the next planting surface to be planted and a retracted posture that is retracted inwardly to the left and right, Marker storage means for switching the drawing marker in the acting posture to the retracted posture based on the forced rise and fixing it is provided, and oscillated along two directions orthogonal to each other and urged to be positioned at the intersection. A multi-function operation tool is provided. The lifting means is switched to the forcibly raised state along with the lifting operation movement from the intersection along the one swinging direction of the functional operation tool to the one side and along the one swinging direction of the multi-function operation tool. The raising and lowering means is switched to the automatic raising / lowering state in accordance with the lowering operation movement from the intersecting portion to the other side, and from the intersecting portion along the other swinging direction of the multi-function operating tool to the one side. The marker storage means is operated to release the fixed state with respect to one drawing marker in accordance with the marker moving operation, and the marker is moved from the crossing portion along the other swinging direction of the multi-function operating tool to the other side. in planting machine is arranged to operate the marker storage means in a state of releasing the fixing for the other drawing marker with the operation movement, operated by the rocking operation of the multi-functional operation device for operating the dynamic for the marker out Is an incoming operation switch for operating enters the planting clutch provided, the multifunctional operation in a restraining state for restraining the operation enters the planting clutch be operated enters this enters operation switch and restraining release state ingredients pivoted and rice transplanter another with the restraining state of being configured to be freely replaced Ri switching by the operation is provided with a dedicated operation device for switching between the restraint released state. A check switch that is turned on and off by the operation tool is provided,
The rice transplanter according to claim 1, further comprising a check control device that switches to the check state when the check switch is turned on and switches to the check release state when the check switch is turned off.

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