JPH11178415A - Sulky type rice transplanter with fertilizer applicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sulky type rice transplanter having a blower force feeding type fertilizer applicator installed therein, capable of saving the energy and elongating the life of a battery, without detriment to the wrong operation or poor fertilizing. SOLUTION: This sulky type rice transplanter has a blower-driving controller 36A for temporarily stopping a blower when the controller 36A does not recognize any one or plural states in the states such as the state of manure remaining in a hopper for storing the fertilizer, the state of a speed change lever 32 being in a transplanting position, the state of a seeding-transplanting device being at the lower part of a prescribed lifted position, the state of a leveling float 17 installed in the seedling-transplanting device being in a grounding state, and the state of a main crutch being in turned on state, and redriving the blower 22 when recognizing the one or plural states to having been recognized again.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding type rice transplanter equipped with a fertilizer applying a fertilizer which is connected to a rear part of a traveling machine body so as to be able to move up and down and which feeds fertilizer by operating a blower. .

[0002]

2. Description of the Related Art A blower pumping type fertilizer applied to a rice transplanter as described above is mounted on a hopper for storing fertilizer, a feeding mechanism for feeding a predetermined amount of fertilizer in the hopper, and a leveling float of a seedling planting device. A fertilizer guide hose that connects the feeding mechanism and the feeding mechanism to the feeding mechanism, and a blower that pressurizes the fertilizer fed from the feeding mechanism toward the feeding device via the fertilizer guide hose. ing. In the fertilizer applicator thus configured, the feeding mechanism is driven in conjunction with the seedling planting device by power from the traveling machine body via the main clutch and the planting clutch mounted on the traveling machine body, whereas the blower is , And are independently driven by a DC motor. Conventionally, in such a blower pressure-feeding type fertilizer, the feeding mechanism is stopped when the main clutch or the planting clutch is turned off when the planting operation of the seedling planting device is interrupted or stopped. While the fertilizer application is interrupted or stopped, the blower is driven to the rated rotation regardless of the interruption or stop of the planting operation, unless the driver intentionally stops the blower (DC motor). Had become.

[0003]

That is, according to the above-mentioned prior art, the fertilizer is configured so that the blower is driven at the rated rotation by the DC motor regardless of the interruption or stop of the planting operation. The power consumption of the rice transplanter as a whole becomes unnecessarily large, and an extra load is imposed on the battery, and there is room for improvement in saving energy and extending the life of the battery. By the way, it is conceivable to stop the drive of both the feeding mechanism and the blower by performing the drive stop operation of the DC motor in parallel with the disengagement operation of the main clutch or the planting clutch. The inconvenience is that the operation becomes troublesome for the stop operation, and the inconvenience that the fertilizing operation is not performed simultaneously with the planting operation by forgetting the re-driving operation of the DC motor when restarting the work travel.

It is an object of the present invention to provide a riding type rice transplanter equipped with a blower pressure feeding type fertilizer to save energy and extend the life of a battery without deteriorating operability or poor fertilization. is there.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, a seedling planting device is connected to a rear portion of a traveling body so as to be able to move up and down, and a blower is operated. In a riding type rice transplanter equipped with a fertilizer applicator equipped with a fertilizer applicator for pumping fertilizer, a state in which fertilizer remains in a hopper for storing fertilizer, a state in which a transmission lever is in a planting position, and a state in which the seedling planting apparatus is A state below the ascending position, a state in which the leveling float provided in the seedling planting apparatus is in contact with the ground, a state in which the main clutch is engaged,
Or, any one of the states of the state in which the planting clutch is engaged, or the blower is temporarily stopped along with the recognition of a plurality of the states, and the state in which the recognition is no longer performed. And / or a blower drive control means for re-driving the blower upon re-recognizing any one or a plurality of the blowers.

According to the first aspect of the invention, the control lever of the blower drive control means does not allow the fertilizer to remain in the fertilizer storage hopper, so that the shift lever is not in the planting position. At the time of non-working running (for example, running on the road, etc.) or at the time of running stop, when the seedling planting device is at the predetermined ascending position, at the time of non-working running or at the time of running stop, the leveling float equipped with the seedling planting device is not grounded It is automatically determined that the blower is not driven unnecessarily during non-working running or when running is stopped, when running and working when the main clutch is disengaged, or when work is stopped when the planting clutch is disengaged. As a result, unnecessary power consumption can be eliminated, and an extra burden on the battery can be prevented.

Conversely, when the fertilizer is supplied to the hopper, the remaining fertilizer in the hopper is re-recognized, and when the fertilizer application is on standby, when the shift lever is re-recognized to be in the planting position, the operation is on standby. The main clutch is disengaged when waiting for work when the device is re-recognized to be below the predetermined ascent position, and when waiting for work when the leveling float equipped on the seedling planter is re-recognized to be in contact with the ground. At the time of work travel standby or work travel start that is recognized again, or
At the start of the work travel when it is recognized again that the planting clutch has been engaged, the blower can be automatically re-driven, thereby causing the blower to be manually re-driven. The inconvenience that the fertilizer application is not performed when the work traveling is resumed by forgetting the blower re-driving operation can be avoided beforehand. In particular, when the blower is re-driven from the standby time of the work traveling, the fertilization failure caused by a delay in the rise of the blower, which may occur when the blower is re-driven at the start of the work traveling, can be avoided beforehand. Become.

Further, in the case where the blower is temporarily stopped when the plurality of states are no longer recognized, it is determined whether or not a transition from the work travel to the travel stop or the non-work travel is performed, or the travel stop is performed. Alternatively, it is possible to accurately determine whether or not the non-working travel appears only for a short time, and to prevent the occurrence of inconvenience due to unnecessary stoppage of the blower. become. For example,
If the blower is temporarily stopped when the fertilizer storage hopper does not recognize the state where fertilizer remains and the state where the main clutch is engaged, the hopper for fertilizer storage It is possible to prevent the occurrence of poor fertilization which may occur when the blower is temporarily stopped in response to the fact that only the state where the fertilizer remains remains. This is because, generally, recognition of whether or not fertilizer remains in the hopper for storing fertilizer is performed based on detection of a fertilizer sensor mounted on the hopper. However, since it is for letting the pilot recognize fertilizer replenishment at the stage before the fertilizer completely disappears from the hopper, even if it recognizes that no fertilizer remains in the hopper based on the detection of this fertilizer sensor, This is because fertilizer may actually remain in the hopper, and depending on the operator, work traveling may be continued in such a case. In addition, work travel is interrupted for a short time by the main clutch disengagement operation, which may occur when the blower is temporarily stopped due to the fact that only the state where the main clutch is engaged is not recognized. In such a case, it is possible to prevent inconveniences such as unnecessary operation of stopping and re-driving the blower during the short period of time, thereby applying an unnecessary load to the blower and the battery.

In the case where the blower is driven again in accordance with re-recognition of a plurality of states among the unrecognized states, any one of the plurality of unrecognized states may be used. Compared to the case where the blower is re-driven in accordance with the re-recognition of the two states, it is possible to accurately determine whether or not the state is a transition to the work traveling, thereby preventing unnecessary re-driving of the blower. When the work traveling is resumed, the blower can be driven again at a more appropriate stage, so that efficient energy saving measures can be taken. For example, if the blower is driven again with re-recognition of each state of the state where the fertilizer remains and the state where the main clutch is engaged in the fertilizer storage hopper, the fertilizer storage Compared to the case where the blower is re-driven in conjunction with re-recognizing only the state where fertilizer remains in the hopper,
It is possible to re-drive the blower at a more appropriate stage, and without performing fertilizer replenishment that occurs when the blower is re-driven in accordance with re-recognizing only the state where the main clutch is engaged. It is possible to prevent unnecessary re-driving of the blower when the non-working running state appears.

[Effect] Therefore, in a riding type rice transplanter equipped with a blower pressure feeding type fertilizer, energy saving and prolonging the life of a battery and a blower can be achieved without deteriorating operability and poor fertilization. became.

In the invention according to claim 2 of the present invention,
At the rear of the traveling machine, a seedling planting device is connected up and down freely, and in a riding type rice transplanter equipped with a fertilizer device equipped with a fertilizer device that pumps fertilizer by operating a blower, fertilizer remains in the hopper for storing fertilizer. State, the shift lever is in the planting position, the seedling planting device is below the predetermined ascending position, the leveling float mounted on the seedling planting device is in contact with the ground, the main clutch is The blower is decelerated and rotationally driven as it does not recognize any one of the states that are put in, or the state in which the planting clutch is put in, or a plurality thereof, and Blower drive control means is provided for driving the blower at a rated rotation in accordance with re-recognition of any one or a plurality of states in which recognition has stopped.

According to the second aspect of the present invention, the control lever of the blower drive control means does not allow the fertilizer to be stored in the fertilizer storage hopper, and the shift lever is not at the planting position during the non-fertilizer application operation. At the time of non-working travel (for example, at the time of traveling from the field where work has been completed to the field where the next work is to be performed) or at the time of running stop, at the time of non-working running or at the time of running stop when the seedling planting device is at the predetermined raised position, At the time of non-working running or running stop when the leveling float equipped on the seedling planting equipment is not in contact with the ground, at the time of running and work stopping with the main clutch disengaged,
Alternatively, when the work is stopped with the planting clutch disengaged, the blower can be automatically prevented from being unnecessarily driven at the rated rotation, thereby suppressing unnecessary power consumption. Thus, it is possible to suppress an extra burden on the battery.

Conversely, when the fertilizer is supplied to the hopper and the remaining fertilizer in the hopper is re-recognized, the fertilizer application is on standby, and when the shift lever is re-recognized to be in the planting position, the operation is on standby. The main clutch is disengaged when waiting for work when the device is re-recognized to be below the predetermined ascent position, and when waiting for work when the leveling float equipped on the seedling planter is re-recognized to be in contact with the ground. At the time of work travel standby or work travel start that is recognized again, or
At the start of the work travel when it is recognized again that the planting clutch is engaged, the blower can be automatically driven to the rated rotation, whereby the blower is switched from the reduced rotation drive state to the rated rotation drive state. It is possible to avoid the inconvenience that the fertilizing operation is not performed properly when the work traveling is restarted by forgetting the switching operation to the rated rotation drive state of the blower, which has occurred when the switching operation is performed manually.

Further, since the blower is driven at a reduced speed during non-working traveling, the blower is re-recognized that the planting clutch is engaged, and at the same time, the blower is moved from the reduced speed at the rated speed. Even if the state is switched, it is possible to suppress or avoid the occurrence of poor fertilization due to a delay in the rise of the blower at the start of work traveling, which may occur when the blower is temporarily stopped.

Further, in the case where the blower is configured to be driven to rotate at a reduced speed as the plurality of states are no longer recognized, it is determined whether or not the traveling has been shifted from the work travel to the travel stop or the non-work travel. It is possible to accurately determine whether the stop or the non-working travel appears only for a short period of time, and to prevent the occurrence of inconvenience caused by unnecessarily decelerating and rotating the blower. Will be able to do it. For example, if the configuration is such that the blower is decelerated and rotated in accordance with the fact that the fertilizer storage hopper does not recognize the state where the fertilizer remains and the state where the main clutch is engaged, the fertilizer storage It is possible to prevent the occurrence of defective fertilization that may occur when the blower is configured to be driven to rotate at a reduced speed with the recognition of only the state where the fertilizer remains in the hopper for use. Further, when the blower is configured to be decelerated and rotated in accordance with the fact that only the state in which the main clutch is engaged is not recognized, the work traveling may be performed only for a short time by disengaging the main clutch. When the operation is interrupted, it is possible to prevent inconveniences such as an unnecessary load being applied to the blower and the battery due to an unnecessary deceleration operation and an increase operation of the blower being performed within the short time.

In the case where the blower is driven to perform the rated rotation in accordance with the re-recognition of a plurality of states out of the unrecognized states, any one of the plurality of unrecognized states may be used. Compared to the case where the blower is driven at the rated speed with re-recognition of one state, it is possible to accurately determine whether or not the state is to shift to the work traveling,
It is possible to prevent the blower from being unnecessarily driven to the rated rotation, and to restart the blower at a more appropriate stage when resuming work traveling, thereby taking efficient energy saving measures. Will be able to For example, if the blower is configured to be driven at the rated speed with re-recognition of the state where the fertilizer remains in the hopper for fertilizer storage and the state where the main clutch is engaged, the fertilizer storage hopper The blower can be driven at the rated rotation at a more appropriate stage, compared to a case where the blower is configured to be driven at the rated rotation with re-recognizing only the state where the fertilizer remains in the hopper. However, if the blower is configured to be driven at the rated speed with re-recognition of only the state in which the main clutch is engaged, a problem that occurs when the non-working running state appears without replenishing the fertilizer. The required rated rotational drive of the blower can be prevented.

[Effects] Therefore, in the invention according to claim 2 as well, in a riding type rice transplanter equipped with a blower pumping type fertilizer, energy saving and deterioration of operability and fertilization failure are not caused. The life of batteries and blowers can be extended.

According to the third aspect of the present invention,
At the rear of the traveling machine, a seedling planting device is connected up and down freely, and in a riding type rice transplanter equipped with a fertilizer device equipped with a fertilizer device that pumps fertilizer by operating a blower, fertilizer remains in the hopper for storing fertilizer. State, the shift lever is in the planting position, the seedling planting device is below the predetermined ascending position, the leveling float mounted on the seedling planting device is in contact with the ground, the main clutch is The state of being put in, or the state in which the planting clutch is put in, any one of the states, or, together with the recognition of a plurality of, reduce the discharge resistance of the blower, and And a discharge resistance adjusting means for restoring the discharge resistance of the blower in accordance with re-recognition of any one or a plurality of states that have not been recognized.

According to the third aspect of the present invention, by operating the discharge resistance adjusting means, during the non-fertilization operation in which no fertilizer remains in the fertilizer storing hopper, the shift lever is not at the planting position. At the time of work traveling (for example, when traveling from the field where work has been completed to the field where the next work is to be performed) or when traveling is stopped, during non-work traveling or when traveling is stopped when the seedling planting device is at the predetermined ascending position, At the time of non-working travel or stoppage of the leveling float equipped with the planting device that is not in contact with the ground, at the time of travel and work stoppage with the main clutch disengaged, or at the time of work stoppage with the planting clutch disengaged ,
The load on the blower can be automatically reduced as compared to the time of work traveling (when the fertilizer is pumped), so that unnecessary power consumption can be suppressed and the extra load on the battery can be reduced. It can be suppressed.

Conversely, when the fertilizer is supplied to the hopper and the remaining fertilizer in the hopper is re-recognized, the fertilizer application is on standby, when the shift lever is re-recognized to be in the planting position, the operation is on standby, and the seedling is planted. The main clutch is disengaged when waiting for work when the device is re-recognized to be below the predetermined ascent position, and when waiting for work when the leveling float equipped on the seedling planter is re-recognized to be in contact with the ground. At the time of work travel standby or work travel start that is recognized again, or
At the start of the work travel when it is recognized again that the planting clutch is engaged, it is possible to automatically switch to a state in which the fertilizer can be pumped by the blower, thereby enabling the blower to feed the fertilizer. In order to avoid the inconvenience that the fertilizer application operation is not performed properly when resuming work traveling by forgetting the switching operation of the blower to the fertilizer pumpable state, which occurred when the switching operation to the Become.

In addition, the discharge resistance of the blower is reduced when the vehicle is not running, so that the discharge resistance of the blower is restored at the same time as the recognition that the planting clutch is engaged. However, it is possible to solve the problem of poor fertilization caused by a delay in the rise of the blower at the start of work traveling, which may occur when the blower is temporarily stopped.

Further, when the discharge resistance of the blower is reduced as the plurality of states are not recognized, it is determined whether or not the operation has been shifted from the work travel to the travel stop or the non-work travel. It is possible to accurately determine whether or not the travel stop or non-work travel appears only for a short period of time, and to avoid the occurrence of inconvenience caused by unnecessarily reducing the discharge resistance of the blower. Can be prevented. For example, if it is configured to reduce the discharge resistance of the blower as the fertilizer storage hopper does not recognize the state where the fertilizer remains in the hopper and the state where the main clutch is engaged, the fertilizer It is possible to prevent the occurrence of defective fertilization that may occur when the discharge resistance of the blower is reduced due to the fact that only the state where the fertilizer remains in the storage hopper is not recognized. In addition, when the main clutch is not recognized only when the main clutch is disengaged, the discharge resistance of the blower may be reduced. When the operation is interrupted, it is possible to prevent the inconvenience of giving unnecessary load to the blower and the battery by performing the operation of reducing and increasing the blower discharge resistance unnecessarily during the short time. Become.

In the case where the discharge resistance of the blower is restored in accordance with the re-recognition of a plurality of states out of the unrecognized states, any one of the plurality of unrecognized states may be used. As compared with the case where the discharge resistance of the blower is restored in accordance with the re-recognition of one state, it is possible to accurately determine whether or not the state is a transition to the work traveling, thereby unnecessarily discharging the blower. It is possible to prevent the resistance from being restored (increased) and to restore the discharge resistance of the blower at a more appropriate stage when resuming work traveling, thereby taking efficient energy-saving measures. Will be able to For example, if the configuration is such that the discharge resistance of the blower is restored along with re-recognition of each state of the state where the fertilizer remains in the hopper for fertilizer storage and the state where the main clutch is engaged, the fertilizer storage To restore the blower discharge resistance at a more appropriate stage compared to the case where the blower discharge resistance is restored in accordance with re-recognizing only the state where fertilizer remains in the hopper for use When the system is configured to restore the discharge resistance of the blower with re-recognizing only the state where the main clutch is engaged, the non-working running state without fertilizer replenishment appears. In this case, unnecessary restoration of the blower discharge resistance can be prevented.

[Effects] Therefore, in the invention according to the third aspect as well, in a riding type rice transplanter equipped with a blower pressure feeding type fertilizer, energy saving and power saving can be achieved without causing deterioration of operability and poor fertilization. The life of batteries and blowers can be extended.

[0025]

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

FIG. 1 shows an entire side view of a riding type rice transplanter equipped with a fertilizer application device. This rice transplanter can move a seedling planting device 3 up and down via a lifting link mechanism 2 at a rear portion of a traveling body 1. , And a mid-mount fertilizer application type is provided by equipping the rear part of the traveling body 1 with a fertilizer application device 4. The traveling body 1 has an engine 5 mounted on a front portion thereof, a hydrostatic continuously variable transmission 6 to which power from the engine 5 is transmitted, and a gear to which power is transmitted via the hydrostatic continuously variable transmission 6. Transmission 7, hydrostatic continuously variable transmission 6
And a pair of left and right front wheels 8 and rear wheels 9 to which the power after shifting via the gear type transmission 7 is transmitted, and a steering unit 12 provided with a steering wheel 10, a driver seat 11, and the like. . The seedling planting device 3 includes a feed case 13 having a gear type transmission mechanism (not shown) in which power after shifting is transmitted via a hydrostatic stepless transmission 6 and a gear type transmission 7, and a gear type. A planting transmission case 14 containing a chain transmission mechanism (not shown) to which the power via the transmission mechanism is transmitted, and the rear left and right sides of the planting transmission case 14 so that the planting operation is performed by the power via the chain transmission mechanism. A rotary type planting mechanism 15 pivotally supported by
Seedling table 16 which reciprocates laterally with a predetermined stroke with respect to planting mechanism 15 by the power from a gear type transmission mechanism, and a rear portion so that a suitable leveling action may be performed in advance on a place where seedlings are planted by planting mechanism 15. It is composed of a leveling float 17 that is vertically swingable around a fulcrum.

As shown in FIGS. 1 to 3, the fertilizer applicator 4 is mounted on a hopper 18 for storing fertilizer, a feeding mechanism 19 for feeding a predetermined amount of fertilizer in the hopper 18, and a leveling float 17 of the seedling planting apparatus 3. Fertilizer guide hose 21 for connecting and connecting the fertilizer produced by the feeding mechanism 19 and the feeding mechanism 19 to the fertilizer guiding hose 21.
, And a blower 22 for pressure-feeding to the groove producing device 20 through the like. The fertilizer application operation is performed by driving the feeding mechanism 19 and the blower 22. The feeding mechanism 19 includes an upper case 23 connected to the hopper 18, and a plurality of recesses 24a for feeding fertilizer on an outer peripheral portion.
Are formed at a predetermined interval,
The drive shaft 25 includes a drive shaft 25 fitted inside the feed roll 24 so as to be rotatable integrally therewith, a lower case 26 for guiding the fertilizer from the feed roll 24 to flow down, and the like.
5, the power after shifting from the gear type transmission 7 is transmitted via the branch transmission mechanism 27, so that a predetermined amount of fertilizer is fed out from the hopper 18 in conjunction with the planting operation of the seedling planting device 3. It has become. As the blower 22, an electric type that is independently driven by the operation of the DC motor 22A is employed. The DC motor 22A is connected to the ON / OFF switch 2 provided at the front left of the fertilizer application device 4.
By manually operating the driver's seat 11 of the traveling body 2a,
The operation state is switched between an operation state in which electric power is supplied from a battery B mounted on the vehicle and an operation stop state in which electric power supply from the battery B is cut off. Feeding mechanism 1
9 has an inlet 26a connected to an air supply pipe 28 for supplying and guiding the air from the blower 22, and a first outlet 26 for fertilization to which the fertilizer guide hose 21 is connected.
b and a second discharge port 26c for discharging residual fertilizer, to which a residual fertilizer discharge pipe 29 for discharging excess fertilizer in the hopper 18 to the outside is formed.
A switching valve 26d is provided for switching between a residual fertilizer discharge state in which b is closed and a fertilization state in which the second discharge port 26c is closed. In addition, the air supply pipe 28 is provided with a lid 28a for closing the end on the lower side of the air supply path so as to be openable and closable, and by opening the lid 28a, the inside of the air supply pipe 28 is cleaned. Can be easily performed.

As shown in FIG. 1 and FIG.
A main clutch pedal 30 biased to automatically return to the "on" position is provided.
0 is depressed to the “disengaged” position, and the main clutch 31 interposed between the engine 5 and the hydrostatic continuously variable transmission 6 is operated.
, The transmission from the engine 5 to the hydrostatic type continuously variable transmission 6 and thereafter can be cut off, whereby the driving of the front wheels 8 and the rear wheels 9 is temporarily stopped during non-working traveling. In addition to the front wheels 8 and the rear wheels 9, the seedling planting device 3 and the fertilizing device 4
Can be temporarily stopped. The main clutch pedal 30 includes the main clutch pedal 3
0 is fixedly held at the “off” position, and a lock 30A is provided.
If only the “0” is depressed and the operation is performed to the “disengaged” position, the main clutch pedal 30 is disengaged by engaging with the body side.
When the main clutch pedal 30 is operated to the "OFF" position while being pressed down together with the main clutch pedal 30, the main clutch pedal 30 is automatically returned to the "ON" position without engaging with the body side. When the main clutch pedal 30 is depressed while the main clutch pedal 30 is fixedly held at the "off" position, the engagement with the machine body side is released and the main clutch pedal 3 is released.
It is configured to allow automatic return to the 0 “on” position.

On the left side of the steering wheel 10,
A main shift lever 32 for operating a hydrostatic continuously variable transmission is provided. By operating the main shift lever 32, the main clutch 31 can be operated even if the disengagement state of the main clutch 31 does not appear by operating the main clutch pedal 30. A stepless speed change operation and a forward / reverse switching operation can be performed. On the left side of the driver's seat 11, a sub-transmission lever 33 for operating the sub-transmission mechanism of the gear type transmission 7 is provided. By operating the sub-transmission lever 33 to the "move" position, the sub-transmission mechanism is operated. 7A can be switched to a high-speed transmission state, a high-speed traveling state for traveling can be displayed, and by operating the sub-transmission lever 33 to the "planting" position, the sub-transmission mechanism 7A can be operated. Can be switched to a low-speed transmission state, a low-speed traveling state for work traveling can be displayed, and by operating this sub-transmission lever 33 to the "neutral" position, the sub-transmission mechanism 7A is set to the neutral position. The state can be switched to a state (non-transmission state), and the driving of the front wheel 8, the rear wheel 9, the seedling planting device 3, and the fertilizer application device 4 can be temporarily stopped.

A planting clutch lever 34 for operating the working device is provided on the right side of the driver's seat 11. By operating the planting clutch lever 34 to the “in (planting)” position, the gear is set. Transmission mechanism 7 in transmission 7
It is possible to switch the planting clutch 7B interposed in the working device transmission system on the lower side in the transmission direction than A to the transmission state, so that the operation states of the seedling planting device 3 and the fertilizer application device 4 can be revealed. Conversely, by operating the planting clutch lever 34 to the "off (planting)" position, the planting clutch 7B can be switched to the non-transmission state, and the seedling planting device 3 and the fertilizing device 4 An operation stop state can be revealed. By operating the planting clutch lever 34 to the "down" position, the seedling planting device 3 can be lowered in a range from the upper limit position to the lower limit position,
Conversely, by operating the planting clutch lever 34 to the “up” position, the seedling planting device 3 can be raised in a range from the lower limit position to the upper limit position. By operating the “neutral” position, the seedling planting apparatus 3 can be stopped at a desired position within a range between the upper limit position and the lower limit position. When the planting clutch lever 34 is operated to the “automatic” position, the operation switching operation of the seedling planting device 3 and the fertilizer application device 4 based on the operation of the operation lever 35 provided at the lower right of the steering wheel 10 and the seedling planting operation The attachment device 3 can be moved up and down.

The operating lever 35 is configured so as to be swingable up and down and is of a neutral return type. The swinging operation of the operating lever 35 switches the planting clutch 7B to the non-transmission state, thereby switching the seedling planting device 3 and the fertilizing device 4. And the seedling planting device 3 is raised to a predetermined upper limit position, and the seedling planting device 3 is moved closer to a preset lower limit by the first downward swing operation after the raising. Is lowered to the desired planting height position, and by the second downward swinging operation after the lowering, the planting clutch 7B is switched to the transmission state to display the operating states of the seedling planting apparatus 3 and the fertilizer application apparatus 4. It is configured to issue.

As shown in FIG. 4, the operation of the hydrostatic stepless transmission 6 by the main transmission lever 32, the operation switching operation of the seedling planting device 3 and the fertilizer application device 4 by the planting clutch lever 34 or the operating lever 35, and Raising / lowering operation of the seedling planting device 3 and the blower 22 by the ON / OFF switch 22a
The operation switching operation of the (DC motor 22A) can be performed by a control operation of a control device 36 including a microcomputer mounted on the traveling machine body 1. still,
4 is a first lever sensor consisting of a rotary potentiometer mounted on a swing fulcrum of the main transmission lever 32 so as to detect the operation position of the main transmission lever 32 and output the detected operation position to the control device 36. Sb is a second lever sensor composed of a rotary potentiometer mounted on the swinging fulcrum of the planting clutch lever 34 so as to detect the operating position of the planting clutch lever 34 and output it to the control device 36. The third lever sensor Sd, which is a limit switch disposed above the operation lever 35 so as to detect an upward operation of the operation lever 35 and output the detected operation to the control device 36, is denoted by Sd. Reference numeral 37 denotes a fourth lever sensor including a limit switch disposed below the operation lever 35 so as to detect an operation and output the operation to the control device 36. By the control operation of the control device 36 based on the detection from the first lever sensor Sa, the trunnion shaft 6a of the hydrostatic continuously variable transmission 6 is rotated so as to have an operation angle corresponding to the operation position of the main transmission lever 32. The operation of the planting clutch lever 34 or the operation lever is controlled by the control device 36 based on the detection from the second lever sensor Sb, the third lever sensor Sc, or the fourth lever sensor Sd. A clutch motor 39 for displaying the switching state of the planting clutch 7B in accordance with the operation direction of the lever 35. Reference numeral 39 denotes a second lever sensor S.
b, third lever sensor Sc or fourth lever sensor Sd
By the control operation of the control device 36 based on the detection from
Electromagnetic control for switching the flow state of hydraulic oil to the lift cylinder 2A of the elevating link mechanism 2 so as to show the elevating state of the seedling planting apparatus 3 according to the operating position of the planting clutch lever 34 or the operating direction of the operating lever 35. It is a valve.
Although not shown, the operation of switching the main clutch 31 by the main clutch pedal 30 and the operation of the sub-transmission lever 33
The switching operation of the sub-transmission mechanism 7A is performed through a mechanical linkage mechanism including an operation rod and the like.

As shown in FIG. 4, the seedling planting device 3 has a float sensor such as a rotary potentiometer that detects the vertical swing angle around the rear fulcrum of the leveling float 17 and outputs the angle to the control device 36. Se is equipped, the control device 36, based on the vertical swing angle of the leveling float 17 detected by the float sensor Se, and determines whether the ground leveling float 17 ground or separation from the ground,
When the planting clutch lever 34 is operated to the "automatic" position and the leveling float 17 is in contact with the ground, the vertical swing angle of the leveling float 17 is adjusted by operating the manual dial type setting device 40. It is configured to automatically control the raising and lowering of the seedling planting device 3 so as to return to the preset target angle. The target angle has a predetermined dead zone.

A seedling sensor Sf comprising a limit switch for detecting that the remaining amount of seedlings in any row has dropped below a predetermined amount is provided below the mounting surface of the seedling mounting table 16. . Then, the control device 36 activates the first alarm 41 formed of a lamp or a buzzer as one of the seedling sensors Sf detects a decrease in the remaining amount of the seedling from the predetermined amount, and informs the pilot. It is designed to encourage the seedling supply device 3 to supply seedlings. Further, each hopper 18 of the fertilizer application device 4 is provided with a fertilizer sensor Sg for detecting that the remaining amount of fertilizer in the hopper 18 has dropped below a predetermined amount.
Then, the control device 36 activates the second alarm 42 formed of a lamp or a buzzer in accordance with the detection of the decrease in the remaining amount of the fertilizer from the predetermined amount by any of the fertilizer sensors Sg, and provides the pilot with The application of the fertilizer to the fertilizer application device 4 is encouraged. Reference numeral 43 in FIG. 1 denotes a spare seedling mounting table provided on the front left and right sides of the traveling machine 1 so as to place the spare seedlings.

As shown in FIG. 4 and FIG.
In the state where the blower 22 is driven by the ON operation of the ON / OFF switch 22a, the leveling float 17 descends to the lower limit in the forward descending direction based on the vertical swing angle of the leveling float 17 detected by the float sensor Se. If the swinging is detected (it is no longer recognized that the leveling float 17 is in contact with the ground), the blower 22 (DC motor 22A) Operation) is automatically paused. Conversely, in the temporary stop state, the leveling float 1 is determined based on the vertical swing angle of the leveling float 17 detected by the float sensor Se.
7 has detected that the vertical swing angle has returned to near a preset target angle by ascending upward in the upward direction (recognizing that the leveling float 17 is in contact with the ground).
In such a case, it is determined that the leveling float 17 is in a work standby state with the ground contacted, and the blower 22 (the operation of the DC motor 22A)
Is automatically re-driven. That is, the controller 36 includes the blower drive control unit 3 that controls the drive of the blower 22 based on the detection from the float sensor Se.
6A is provided as a control program.

By the control operation of the blower drive control means 36A, when the leveling float 17 mounted on the seedling planting apparatus 3 is not in contact with the ground (for example, when turning on a headland or in a field where work is completed). From the time of traveling to the field where the next operation is performed), the blower can be automatically prevented from being driven unnecessarily, whereby the power of the battery B is unnecessarily consumed. The battery B has an extra burden, or the fertilizer application is not performed when the work travel is resumed by forgetting the redrive operation of the blower 22 as in the case where the redrive operation of the blower 22 is performed manually. Can be avoided beforehand. Planting clutch 7B
From the stage before the vehicle is switched to the transmission state (during standby for work traveling), the leveling float 17 by the float sensor Se
The blower 22 is driven again based on the detection of the contact of the ground, there is a possibility that the blower 22 may be driven again at the same time as the switching of the planting clutch 7B to the transmission state (resumption of work traveling). In addition, it is possible to prevent a poor fertilization caused by a delay in the rise of the blower 22 beforehand.

[Other Embodiments] Hereinafter, other embodiments of the present invention will be listed. [1] With the blower drive control unit 36A detecting the drop of the remaining amount of fertilizer from the predetermined amount by the fertilizer sensor Sg (it does not recognize the state where the fertilizer remains in the hopper 18 of the fertilizer 4). The blower 22 is temporarily stopped, and during the pause, the fertilizer is supplied to the hopper 18 and the fertilizer sensor Sg detects that the remaining amount of the fertilizer has exceeded a predetermined amount. The blower 22 may be configured to be driven again in response to the re-recognition of the state where the fertilizer remains). According to this configuration, it is possible to prevent the blower 22 from being driven unnecessarily during fertilizer replenishment.

[2] As shown in FIG.
A fifth lever sensor Sh composed of a potentiometer for detecting the operation position of the third is provided, and the blower drive control means 36A detects the operation of the auxiliary transmission lever 33 to the "neutral" or "movement" position by the fifth lever sensor Sh. The blower 22 is temporarily stopped along with the operation (the state in which the auxiliary transmission lever 33 is in the “planting” position is stopped), and then the auxiliary transmission lever 33 is operated again to the “planting” position ( The configuration may be such that the blower 22 is driven again when the auxiliary transmission lever 33 re-recognizes the state of being in the “planting” position. According to this configuration, the blower 22 is driven unnecessarily at the time of traveling stop when the sub-transmission lever 33 is operated to the "neutral" position, or at the time of non-working traveling when the sub-transmission lever 33 is operated to the "movement" position. Can be prevented.

[3] The main transmission lever 32 is configured to be switchable to each of the operation positions of “move”, “neutral” and “plant”.
In a configuration in which any one of the non-working traveling state, the traveling stopped state, and the working traveling state is made to appear by the operation, the blower drive control means 36A detects the operation position of the main shift lever 32 by the first operation. The operation of the main shift lever 32 to the “neutral” or “movement” position is detected by the lever sensor Sa (the state where the main shift lever 32 is in the “planting” position is no longer recognized), and the blower 22 is thus detected. Is temporarily stopped, and then the blower 22 is driven again when the main shift lever 32 is again operated to the “planting” position (recognizing the state where the main shift lever 32 is in the “planting” position). You may be comprised so that it may be performed. According to this configuration, the blower 22 is unnecessarily driven when the main transmission lever 32 is operated to the “neutral” position and the vehicle is stopped, and when the main transmission lever 32 is operated to the “move” position and the vehicle is not working. Can be prevented.

[4] As shown in FIG. 7, a rise detecting sensor Si (for example, a predetermined rising position of the seedling planting device 3) which detects that the seedling planting device 3 has risen to a predetermined rising position (for example, an upper limit position). And a potentiometer that detects the vertical swing angle of the lifting link mechanism 2), and the blower drive control means 36A is controlled by the lift detection sensor Si. When the rise of the seedling planting device 3 to the predetermined rising position is detected (the seedling planting device 3 stops recognizing a state below the predetermined rising position), the blower 22 is temporarily stopped, and then the rising is performed. Seedling plant 3 by detection sensor Si
Is detected from a predetermined ascending position (seedling plant 3
The blower 22 may be re-driven in response to the re-recognition of a state below the predetermined rising position. According to this configuration, it is possible to prevent the blower 22 from being unnecessarily driven when the seedling planting apparatus 3 is at the predetermined ascent position and is not working.

[5] As shown in FIG.
Is provided, and the blower drive control means 36A detects the non-transmission state of the main clutch 31 for a predetermined time by the main clutch sensor Sj (when the main clutch 31 is engaged). The state of the blower 22 is temporarily stopped along with the stop of the state in which the main clutch 31 is disengaged. Then, the transmission state of the main clutch 31 is detected by the main clutch sensor Sj (the state in which the main clutch 31 is engaged is recognized again). , The blower 22 may be driven again. According to this configuration,
By holding the main clutch pedal 30 in the "disengaged" position by the lock device 30A, it is possible to prevent unnecessary driving of the blower 22 when the main clutch 31 is disengaged for a predetermined time or more and stopped. In addition, this traveling stop generally appears when it becomes necessary to supply seedlings to the seedling planting device 3 or supply fertilizer to the fertilizer application device 4 during work traveling.

[6] The blower drive control means 36A controls the planting clutch lever 34 or the operating lever 3 based on the detection from the second lever sensor Sb or the third lever sensor Sc.
The blower 22 is temporarily stopped in response to detecting that the planting clutch 7B has been switched to the non-transmission state by the operation of No. 5 (it does not recognize the state in which the planting clutch 7B is engaged), and thereafter, Based on the detection from the two lever sensor Sb or the fourth lever sensor Sd, it is detected that the planting clutch 7B has been switched to the transmission state by operating the planting clutch lever 34 or the operating lever 35 (the planting clutch 7B has The blower 22 may be driven again in accordance with the state of being inserted (re-recognizing the inserted state). According to this configuration, it is possible to prevent the blower 22 from being driven unnecessarily when the planting clutch 7B is disengaged and not operated.

[7] The blower drive control means 36A controls the operation of the blower 22 based on the detection from the second lever sensor Sb, the third lever sensor Sc, the float sensor Se, or the elevation detection sensor Si ( Blower 22
Is temporarily stopped), the float sensor S
e, the separation of the leveling float 17 from the ground is detected, the rise detection sensor Si detects the rise of the seedling planting device 3 to a predetermined rising position, or the planting clutch 7B is moved by the second lever sensor Sb or the third lever sensor Sc. The blower 22 may be temporarily stopped only when the operation detection of the planting clutch lever 34 or the operation lever 35 for switching to the non-transmission state is continued for a predetermined time. According to this configuration, for example, when raising the seedling planting device 3 temporarily (between several seconds to several tens of seconds) during work traveling or when turning around a row to switch the planting clutch 7B to the non-transmission state,
It is possible to prevent the inconvenience of stopping the blower 22 unnecessarily.

[8] The blower drive control means 36A recognizes, based on the detection from the second lever sensor Sb or the third lever sensor Sc, whether or not the planting clutch 7B is engaged, and the float sensor Se. And recognizes whether the leveling float 17 is in contact with the ground based on the detection from
Seedling plant 3 based on the detection from the rise detection sensor Si
Is recognized as being below the predetermined ascent position, and based on the detection from the fertilizer sensor Sg, it is determined whether or not fertilizer remains in the hopper 18 of the fertilizer application device 4, and the fifth lever sensor Based on the detection from Sh, the sub-shift lever 3
3 is recognized as being in the “planting” position (in the configuration exemplified in the section of the above-mentioned another embodiment [3], the main transmission lever 32 is detected based on the detection from the first lever sensor Sa). Is recognized as being in the "planting" position), and further, it is configured to recognize whether or not the main clutch 31 is engaged based on the detection from the main clutch sensor Sj. Among these, the state in which the planting clutch 7B is engaged, the state in which the leveling float 17 is in contact with the ground, the state in which the seedling planting device 3 is below the predetermined ascent position, and the fertilizer remaining in the hopper 18 of the fertilizing device 4 Operating state, the state in which the auxiliary transmission lever 33 is in the “planting” position (or the state in which the main transmission lever 32 is in the “planting” position), or the state in which the main clutch 31 is engaged. Any one of Blois 2 recognize and stage that is no longer
2 may be temporarily stopped, and the blower 22 may be re-driven at the stage when the state of no longer being recognized is re-recognized.

[0045]

[9] The blower drive control means 36A recognizes whether or not the planting clutch 7B is engaged based on the detection from the second lever sensor Sb or the third lever sensor Sc, and detects from the float sensor Se. And recognizes whether or not the leveling float 17 is in contact with the ground,
Seedling plant 3 based on the detection from the rise detection sensor Si
Is recognized as being below the predetermined ascent position, and based on the detection from the fertilizer sensor Sg, it is determined whether or not fertilizer remains in the hopper 18 of the fertilizer application device 4, and the fifth lever sensor Based on the detection from Sh, the sub-shift lever 3
3 is recognized as being in the “planting” position (in the configuration exemplified in the section of the above-mentioned another embodiment [3], the main transmission lever 32 is detected based on the detection from the first lever sensor Sa). Is recognized as being in the "planting" position), and further, it is configured to recognize whether or not the main clutch 31 is engaged based on the detection from the main clutch sensor Sj. Among these, the state in which the planting clutch 7B is engaged, the state in which the leveling float 17 is in contact with the ground, the state in which the seedling planting device 3 is below the predetermined ascent position, and the fertilizer remaining in the hopper 18 of the fertilizing device 4 Operating state, the state in which the auxiliary transmission lever 33 is in the “planting” position (or the state in which the main transmission lever 32 is in the “planting” position), or the state in which the main clutch 31 is engaged. Recognizes more than one of It may be configured to suspend the blower 22 along with the Kunar.

As an example, the blower drive control means 36
A considers such a combination that the blower 22 is temporarily stopped in response to the A not recognizing the state in which the fertilizer remains in the hopper 18 of the fertilizer applicator 4 and the state in which the main clutch 31 is engaged. Can be According to this combination, as exemplified in the column of the another embodiment [1],
The blower drive control means 36A temporarily stops the blower 22 with the fertilizer sensor Sg detecting that the remaining amount of fertilizer has decreased from a predetermined amount (substantially, some fertilizer remains in the hopper 18). In such a case, it is possible to perform operations that cannot be performed and that the work traveling can be continued to a sharp point.

[10] Another embodiment described above

In the example illustrated in the section [9], the blower drive control means 36A is configured to re-drive the blower 22 in response to re-recognition of any one of a plurality of conditions that are no longer recognized. And the blower 2 may be re-recognized when some or all of the conditions that are no longer recognized are re-recognized.
2 may be configured to be driven again.

In the latter case, as shown in FIG. 9, for example, as shown in FIG. 9, the blower drive control unit 36A detects the fertilizer application device based on the detection of the fertilizer sensor Sg and the float sensor Se among the plurality of conditions that are no longer recognized. Hopper 18 of 4
If the blower 22 is driven again in response to re-recognition of the state in which the fertilizer remains and the state in which the leveling float 17 is in contact with the ground, the fertilizer supply to the hopper 18 of the fertilizer application device 4 can be performed. The blower 22 is re-recognized only when the leveling float 17 is grounded without being performed, or only when the fertilizer remains in the hopper 18 of the fertilizer application device 4 by replenishing the fertilizer. Unnecessary power consumption can be more effectively prevented as compared with the case of re-driving, and the state in which the main clutch 31 is engaged or the state in which the planting clutch 7B is engaged is recognized again. As a result, it is possible to more appropriately avoid a fertilization failure at the time of resuming the work due to a delay in the rise of the blower 22, which may occur when the blower 22 is driven again.

As shown in FIG. 10, the blower drive control means 36A supplies the hopper 18 of the fertilizer device 4 to the hopper 18 based on the detection of the fertilizer sensor Sg and the rise detection sensor Si among the plurality of conditions that are no longer recognized. If the blower 22 is configured to be driven again in response to the state in which the fertilizer remains and the state in which the seedling planting apparatus 3 is located below the predetermined ascending position, the hopper 18 of the fertilizing apparatus 4 can be configured. To re-recognize only the state where the seedling planting device 3 is below the predetermined ascending position without fertilizer supply to the fertilizer application device 4 or the state where fertilizer remains in the hopper 18 of the fertilizer application device 4 due to the fertilizer supply. Unnecessary power consumption can be prevented more effectively than when the blower 22 is configured to be re-driven, and the main clutch 31 is engaged, or the planting is performed. Crack More preferably, poor fertilization at the time of resuming work due to a delay in rising of the blower 22 which may occur when the blower 22 is re-driven in accordance with re-recognition of the state in which the 7B is inserted. You can avoid it.

Although not shown, the blower drive control means 36A drives the sub-transmission lever 33 based on the detection of the fifth lever sensor Sh and the rise detection sensor Si among the plurality of conditions that are no longer recognized. If the blower 22 is re-driven in accordance with the re-recognition of the state in which the main plant is in the attached position and the state in which the seedling planting device 3 is located below the predetermined ascending position, the state in which the main clutch 31 is engaged. Or, when resuming the state in which the planting clutch 7B is engaged, the blower 22 is re-driven in response to a re-recognition of the state, and the work is restarted due to a delay in the rise of the blower 22 which may occur. While properly avoiding poor fertilization, the blower is re-recognized only when the auxiliary transmission lever 33 is at the planting position or when the seedling planting device 3 is below the predetermined ascent position. Compared to the case where the re-driving of the blower 22 is performed, it is possible to accurately determine whether or not the state shifts to the work traveling, and to effectively prevent unnecessary re-driving of the blower 22. become able to.

Further, for example, as shown in FIG. 11, among the plurality of conditions that the blower drive control means 36A no longer recognizes, the float sensor Se and the second lever sensor S
b or the fourth lever sensor Sd, the blower 22 is re-recognized as a state in which the leveling float 17 is in contact with the ground and a state in which the planting clutch 7B is engaged.
12 may be configured to be re-driven, and as shown in FIG. 12, the fifth lever sensor Sh (in the above-described another embodiment [3] In the configuration illustrated in the column of [3], the auxiliary shift lever 33 (in the configuration illustrated in the column of the alternative embodiment [3], based on the detection of the first lever sensor Sa) and the main clutch sensor Sj. Main transmission lever 32)
The blower 22 may be re-driven in response to re-recognition of the state where the main clutch 31 is engaged and the state where the main clutch 31 is engaged.

[11] The blower drive control means 36A determines whether or not fertilizer remains in the hopper 18 of the fertilizer application device 4 and whether or not the sub-shift lever 33 is in the "planting" position (as described above). In the configuration exemplified in the section of the embodiment [3], whether the main transmission lever 32 is in the "planting" position or not, and whether the seedling planting device 3 is below the predetermined ascent position. The configuration for recognizing whether or not the leveling float 17 is in contact with the ground, whether or not the main clutch 31 is in the engaged state, and whether or not the planting clutch 7B is in the engaged state is as follows. Various changes are possible.

[12] The state in which the fertilizer remains in the hopper 18 of the fertilizer applicator 4 and the state in which the auxiliary transmission lever 33 is in the "planting" position (see the above embodiment [3]). In the configuration illustrated in the column, the main transmission lever 32 is in the “planting” position), and the seedling planting device 3
Is below the predetermined ascent position, leveling float 17
Is grounded, the main clutch 31 is engaged, or the planting clutch 7B is engaged,
The blower 22 is driven to rotate at a reduced speed as one or more of the states are no longer recognized, and one or more of the states no longer recognized are re-recognized. The configuration may be such that the blower 22 is driven to the rated rotation as the recognition is made.

[13] If the blower drive control means 36A does not recognize the state in which the main clutch 31 is engaged during work traveling, for example, the operation for a relatively long time to supply seedlings or fertilizer is performed. When it is determined that the operation is interrupted, the blower 22 is temporarily stopped, and when the state in which the main clutch 31 is engaged is re-recognized, it is determined that work traveling is to be resumed, and the blower 22 is driven again and planted. If it is not possible to recognize only the state in which the clutch 7B is engaged, the state in which the seedling planting device 3 is below the predetermined ascent position, or the state in which the leveling float 17 is in contact with the ground, the headland turns. In the state where the operation is interrupted for a relatively short time, the blower 22 is decelerated and rotated, and the planting clutch 7B which is no longer recognized is engaged, or the seedling planting device 3 is State from the constant elevated position located below,
Alternatively, when re-recognizing that the leveling float 17 is in contact with the ground, it is determined that work traveling is to be resumed, and
The drive control of the blower 22 may be performed in accordance with a state in which recognition of the blower 22 is not performed (interruption time of the work traveling).

[14] As shown in FIG. 13, an actuator 44 such as an electromagnetic cylinder for opening and closing the lid 28a for opening and closing the end of the air supply pipe 28 on the lower side of the air supply path is provided. In the device 36, in place of the blower drive control means 36A, a state in which fertilizer remains in the hopper 18 of the fertilizer application device 4, and a state in which the auxiliary transmission lever 33 is in the "planting" position (the above-described another embodiment [3]) In the configuration illustrated in the column, the main transmission lever 32 is in the “planting” position), the seedling planting device 3 is below the predetermined ascent position, the leveling float 17 is in contact with the ground, As one or more of the states of the state in which the clutch 31 is engaged and the state in which the planting clutch 7B is engaged are not recognized, the electromagnetic cylinder is not recognized. Discharge resistance of the blower 22 by opening operation of the lid 28a by operation of the 4 (blower 22
By closing the cover 28a by operating the electromagnetic cylinder 44 in accordance with re-recognition of one or more of the states that are no longer recognized. The discharge resistance adjusting means 36B configured to restore the discharge resistance of the blower 22 may be provided as a control program.

[15] In the control device 36, instead of the blower drive control means 36A, a state in which fertilizer remains in the hopper 18 of the fertilizer application device 4, and a state in which the sub-transmission lever 33 is in the "planting" position (see above). In the configuration exemplified in the section of another embodiment [3], the main transmission lever 32 is in the “planting” position), the seedling planting device 3 is below the predetermined ascent position, and the leveling float 17 is Grounded, main clutch 31 engaged, or planting clutch 7B
The suction resistance of the blower 22 (the load on the blower 22) is reduced with the recognition of one or more of the states in which
In addition, the discharge resistance adjusting means 36 configured to restore the suction resistance of the blower 22 in accordance with the re-recognition of any one or a plurality of the states that are no longer recognized.
B may be provided as a control program.

[Brief description of the drawings]

FIG. 1 is an overall side view of a riding rice transplanter with a fertilizer application device.

FIG. 2 is a rear view showing the configuration of the fertilizer application device.

FIG. 3 is a longitudinal sectional side view of the feeding mechanism showing a configuration of the feeding mechanism.

FIG. 4 is a block diagram showing a control configuration of a riding rice transplanter with a fertilizer application device.

FIG. 5 is a flowchart showing a control operation of a blower drive control unit.

FIG. 6 is a block diagram showing another embodiment in which the blower drive control means controls the drive of the blower based on whether or not the auxiliary transmission lever is at the “planting” position.

FIG. 7 is a block diagram showing another embodiment in which the blower drive control means controls the drive of the blower based on whether or not the seedling planting device is below a predetermined ascending position.

FIG. 8 is a block diagram showing another embodiment in which the blower drive control means controls the drive of the blower based on whether or not the main clutch is engaged.

FIG. 9 shows a state in which the blower drive control means re-recognizes a state in which fertilizer remains in the hopper of the fertilizer and a state in which the leveling float is in contact with the ground, among a plurality of conditions that are no longer recognized. Block diagram showing another embodiment configured to re-drive

FIG. 10 re-recognizes a state in which fertilizer remains in the hopper of the fertilizer apparatus and a state in which the seedling planting apparatus is below the predetermined ascending position among a plurality of conditions that the blower drive control means no longer recognizes. FIG. 4 is a block diagram showing another embodiment configured to re-drive the blower according to FIG.

FIG. 11 re-drives the blower with re-recognition of a state in which the leveling float is in contact with the ground and a state in which the planting clutch is engaged, among a plurality of conditions that the blower drive control means no longer recognizes. Block diagram showing another embodiment configured to

FIG. 12 shows that the blower drive control means re-recognizes a state in which the sub-transmission lever is in the planted position and a state in which the main clutch is engaged, among the plurality of conditions which are no longer recognized by the blower drive control means. Block diagram showing another embodiment configured to drive

FIG. 13 is a block diagram showing another embodiment in which the control device is provided with a discharge resistance adjusting means.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 running machine 3 seedling planting device 4 fertilizer application device 7B planting clutch 17 ground leveling float 18 hopper 22 blower 31 main clutch 32 shift lever (main shift lever) 33 shift lever (sub shift lever) 36A blower drive control means 36B discharge resistance adjustment means

Claims (3)

[Claims] Claims 1. A riding type rice transplanter equipped with a fertilizer application device, which is provided with a fertilizer device for feeding a fertilizer by pumping a fertilizer by operating a blower to a rear portion of a traveling machine body so as to be movable up and down. Fertilizer remains in the hopper, the speed change lever is in the planting position, the seedling planting device is below the predetermined ascent position, the leveling float provided in the seedling planting device is grounded. State, the state in which the main clutch is engaged, or the state in which the planting clutch is engaged, any one of the respective states, or as the plurality of blowers are not recognized, Pause,
In addition, a riding type rice transplanter with a fertilizer applicator provided with blower drive control means for re-driving the blower in response to re-recognition of any one or a plurality of states in which recognition has stopped. 2. A riding type rice transplanter equipped with a fertilizer application device, which is provided with a fertilizer device for feeding a fertilizer by operating a blower, wherein a seedling transplanter device is connected to a rear portion of the traveling machine so as to be able to move up and down. Fertilizer remains in the hopper, the speed change lever is in the planting position, the seedling planting device is below the predetermined ascent position, the leveling float provided in the seedling planting device is grounded. State, the state in which the main clutch is engaged, or the state in which the planting clutch is engaged, any one of the respective states, or as the plurality of blowers are not recognized, Reduced rotation drive, and any one of the state no longer recognized, or with a fertilizer device equipped with blower drive control means that drives the blower rated rotation with re-recognition of a plurality of Use type rice planting machine. 3. A riding type rice transplanter equipped with a fertilizer application device, which is provided with a fertilizer device for feeding a fertilizer by pumping a fertilizer by operating a blower, wherein a seedling planter device is connected to a rear portion of the traveling machine body, the fertilizer storage device comprising: Fertilizer remains in the hopper, the speed change lever is in the planting position, the seedling planting device is below the predetermined ascent position, the leveling float provided in the seedling planting device is grounded. State, the state in which the main clutch is engaged, or the state in which the planting clutch is engaged, any one of the states, or as the plurality of blowers are no longer recognized, A fertilizer apparatus having a discharge resistance adjusting means for reducing the discharge resistance and restoring the discharge resistance of the blower in accordance with re-recognition of any one or a plurality of states that are no longer recognized. With Riding type rice planting machine.