JP2002084832A - Working apparatus controller for paddy field implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simply and accurately carry out an edge arrangement of seedling. SOLUTION: In this operation apparatus controller for a paddy field implement in which a paddy field operation apparatus liftably is connected to the rear of a self-propelled machine, a lifting and lowering for lifting and lowering the paddy field operation apparatus is installed, an automatic lift control means A1 which is linked to a steering of a set angle or larger from a direct advance state and raises the lifting and lowering means is arranged and a timer T for setting a time from the automatically rising point of the paddy field operation apparatus or a set time after a lapse of a fixed time to a time when the paddy field operation apparatus is operated.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a self-propelled machine, in which a paddy working device such as a seedling planting device is connected to the rear of the self-propelled machine so that the paddy working device can be moved up and down. The present invention relates to a working device control device for a paddy field working machine such as a rice transplanter, which is provided with an automatic ascending control means for raising and lowering the elevating means in conjunction with a steering operation at a set angle or more.

[0002]

2. Description of the Related Art For example, rice planting, which is an example of paddy field work, generally employs a work form in which a rice transplanter is turned (U-turn) on a ridge and reciprocates. In such a case, the paddy field working machine to which the present invention is applied is provided with an automatic ascent control means for ascending and descending the elevating means in association with the steering (turning) of a set angle or more from the straight traveling state. At the time of steering, it is possible to automatically raise the paddy field working device simply by performing the steering operation, thereby improving the turning operability. And when the above-mentioned work form is adopted, if the distance from the ridge of the planting streak is the same, that is, if the ends of the planting streak are aligned, at the time of the subsequent ridge work,
By simply moving the rice transplanter along the ridge, the work on the ridge can be almost completed, and manual supplemental planting is not required, or it is only necessary if necessary. In this way, when paddy work is performed using the paddy work machine, it is preferable that the working edges at the ridge are aligned.

[0003] Conventionally, when a worker visually measures the distance between the paddy field working device and the ridge, and determines from the intuition that the paddy field working device has moved to the position of the ridge or the set distance, the operator operates the paddy field working device. The working edges were aligned.

[0004]

However, in practice, it is difficult to align working ends based on eye measurement and intuition of an operator, although it requires skill.

An object of the present invention is to enable simple and accurate edge alignment.

[0006]

The features, functions and effects of the working device control device for a paddy field working machine according to the present invention according to claim 1 are as follows.

[Characteristics] A paddy field working device is connected to the rear of the self-propelled machine so as to be able to move up and down, and lifting means for raising and lowering the paddy field working device are provided. In a paddy working machine provided with automatic ascent control means for raising and lowering the raising and lowering means, in order to set a time from when the paddy working device automatically rises or when a set time has elapsed from the set time to when the paddy working device is operated. In that a timer is provided.

[Operation] The swirling on the ridge side is performed in almost the same manner, and the time required for it is almost the same. Focusing on the above points, by providing a timer, it is possible to set the time from when the paddy working device automatically rises or when the set time has elapsed from the set time until the paddy working device is activated, several times After that, the set time by the timer is determined based on the trial, and thereafter, the paddy field working device is operated and operated based on the notification by the timer, or the paddy field working device is automatically operated based on the timer to turn. The work start position of each paddy work device can be set to be approximately equal distance from the ridge.

[Effects] Therefore, it is possible to accurately perform edge alignment by performing a simple operation or without performing an operation.

The features, operations and effects of the working device control device for a paddy working machine according to the present invention according to claim 2 are as follows.

[Features] In the working device control device for a paddy working machine according to the first aspect of the present invention, there is provided control means for automatically operating the paddy working device when the time set by the timer is measured. There is a point.

[Operation] Since the control means is provided to automatically operate the paddy field working device based on a timer, no operation for operating the paddy field working device is required.

[Effect] Therefore, the turning operability can be further improved.

The features, functions and effects of the working device control apparatus for a paddy working machine according to the present invention according to claim 3 are as follows.

[Features] In the work equipment control device for a paddy field working machine according to the present invention according to the above claim 1 or 2, the time set by a timer is set as a stop time or a reverse time when the self-propelled machine is steered. The point is that time correction means for correcting is provided.

[Operation] At the time of a ridge, there is a case where the turning operation is interrupted to perform a work such as replenishing seedlings, or a reverse operation is performed to correct the turning route. In such a case, if the time set by the timer is not changed, the work start position of the paddy field working device varies, and it becomes impossible to perform edge alignment. Focusing on the above points, time correction means is provided, and the time set by the timer is corrected to the time that makes the distance from the ridge to the work start position almost equal to the set distance with the stop time during steering and the reverse time Therefore, the work start positions can be aligned regardless of whether the vehicle is stopped or moved backward during steering.

[Effect] Accordingly, regardless of whether the vehicle is stopped or moved backward during steering, it is possible to accurately perform edge alignment without requiring any special operation.

The features, functions and effects of the working device control apparatus for a paddy field working machine according to the present invention according to claim 4 are as follows.

[Features] In the working device control device for a paddy working machine according to the present invention according to the first, second, and third aspects, the paddy working device is automatically controlled based on the return of the self-propelled working machine to the straight traveling state. The point is that automatic lowering control means for lowering is provided.

[Function] Since the automatic lowering control means is provided to automatically lower the paddy field working device based on the return to the straight traveling state, it is necessary for the paddy field work in a reciprocating manner by turning around the ridge. The lowering of the paddy field work equipment can be automated.

[Effect] Therefore, the operability at the time of turning on the ridge can be further improved.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG. 1, a rice transplanter, which is an example of a paddy field working machine, is provided with a seedling planting apparatus 2, which is an example of a paddy field working apparatus, at the rear of a riding type self-propelled main unit 1. It is connected so as to be able to move up and down via a link mechanism 3 and is provided with an elevating means for elevating the seedling planting apparatus 2.

The self-propelled machine 1 has a prime mover 4 at the front and a driver seat 5 at the rear, and a pair of left and right driving front wheels 6 and a pair of left and right driving rear wheels 7 for steering. A steering handle 8 is provided in front of the driver's seat 5.
Is arranged.

The seedling planting apparatus 2 is a multi-row planting type. The seedling rest 9 moves back and forth with a set stroke to the left and right, and the seedling rest 9 is moved in conjunction with the movement of the seed rest 9. A seedling claw 10 for picking out seedlings on the seedling mounting table 9 by a unit amount and planting them on the rice field by circulating up and down between the seedling outlet formed at the inclined lower end and the rice field, and a rice field to be planted. And a plurality of ground floats 11 for leveling.
One of the grounding floats 11 also serves as a grounding sensor that detects a grounding pressure that fluctuates when the height of the seedling planting device 2 from the rice field surface changes.

As shown in FIG. 3, the raising and lowering means includes a lift cylinder 12 for raising the seedling planting device 2 with the supply of pressurized oil and lowering the seedling planting device 2 by its own weight with drainage. It has a basic configuration in which a hydraulic pump (not shown) for supplying pressurized oil is provided, and a lift valve 13 using an electromagnetic valve for controlling supply and discharge of pressurized oil to the lift cylinder 12 is provided.

As shown in FIG. 3, an elevating operation mechanism A for operating the elevating valve 13 has an elevating / lowering mechanism which can be freely changed to an elevating position, a neutral position (elevation stopping position), a descent position, a planting position, and an automatic position. A lever 20 is provided. When the elevating lever 20 is at the elevating position, the elevating valve 13 is operated to the elevating position, and when the elevating lever 20 is at the neutral position, the elevating valve 13 is operated to the elevating stop neutral position. When the raising / lowering lever 20 is at the lowered position, the raising / lowering valve 13 is moved to the ground pressure detecting operation of the ground float 11 so that the seedling planting apparatus 2 is located at a height position where the ground pressure of the ground float 11 becomes a set value. The raising and lowering valve 13 is moved so that the seedling planting device 2 is located at a height position where the ground pressure of the ground float 11 reaches a set value when the raising and lowering lever 20 is at the planting position. A planting state that operates in conjunction with the contact pressure detection operation of the contact float 11 and engages a planting clutch 21 interposed in a transmission mechanism to the seedling planting device 2. To become.

As shown in FIG. 2, the steering apparatus of this rice transplanter is provided with a pitman arm 14 which swings around a vertical axis y in conjunction with the steering handle 8, and the left and right driving front wheels 6 and A knuckle arm 15 that swings integrally around the king pin axis k is provided.
A drag link 16 is provided for interlocking the front knuckle arm 15 with the left and right knuckle arms 15, and the front steering wheel 6 is steered in conjunction with the steering handle 8. Also, an operation lever for interposing a steering clutch 17 for intermittent transmission in the transmission mechanism to each of the left and right driving rear wheels 7 and swinging in a specific direction to reversibly switch off the steering clutch 17. And a linkage mechanism for swinging the operating lever 19 with respect to the driving rear wheel 7 inside the turning and swinging the steering clutch 17 in conjunction with the swing of the pitman arm 14 from the straight traveling state to the set angle or more. Thus, the vehicle is configured to perform a turn in a state in which transmission to the drive rear wheel 7 on the inside of the turn is cut off in conjunction with the front wheel steering beyond the set angle from the straight running state.

The link mechanism is provided with a first rod 22 which is pushed and pulled by the swing of the pitman arm 14, and provided with a relay link 23 which swings around the vertical axis p by pushing and pulling of the first rod 22. A second rod 24 for swinging the operation lever 19 in accordance with the swing of the relay link 23 is provided. The pivot connection hole 25 of the pitman arm 14 with the first rod 22 is provided in the pitman arm 14.
Is formed in an elongated hole that does not transmit the swing of less than the set angle to the first rod 22, and the pivotal connection hole 26 of the operation lever 19 with the second rod 24 is formed of a drive of the second rod 24 on the outer side of the rotation. It is formed in an elongated hole that does not transmit the operation of the second rod 24 to the rear wheel 7 to the operation lever 19.

As shown in FIG. 3, the rice transplanter is provided with a steering detection sensor 28 using a potentiometer for detecting the steering angle of the pitman arm 14 at a set angle or more from the straight traveling state. An upper limit sensor 29 for detecting that the seedling planting apparatus 2 is positioned at the upper limit;
And a stop time timer 30 for counting the time of stoppage during the turn on the ridge, a reverse time timer 31 for counting the time of reverse movement during the turn on the ridge, and a working device control device 32.

The working device control device 32 functions when the elevating lever 20 is operated to the automatic position. The working device control device 32 is interlocked with the steering at a set angle or more from the straight traveling state, that is, the operation is performed. Based on the detection result of the direction detection sensor 28, the ascending / descending operation mechanism A is switched to the ascending state, and the ascending / descending means is moved up by the ascending control means A1. Seedling planting device 2 after turning from the set point when upper limit sensor 29 detects and operates
When the time set by the timer T for setting the time until the actuation of the planting clutch 21, ie, the time until the planting clutch 21 is engaged and operated, is measured, the elevating operation mechanism A
The operation control means A2 for automatically operating the seedling planting apparatus 2 by switching to the planting state, and when the steering detection sensor 28 detects the return to the straight traveling state after the detection by the steering detection sensor 28 Automatic lowering means A3 for switching the raising and lowering operation mechanism A to the lowering state and automatically lowering the seedling planting apparatus 2;
A time correcting means A4 for correcting the time set by the timer T to a time for making the distance from the ridge to the work start position substantially equal to the set distance by the time measured by the stop time timer 30 and the reverse time timer 31; Have.

Therefore, as shown in FIG. 4, in the turning on the ridge, after turning, the seedling planting device 2 first descends, and then the planting clutch 21 is engaged to start planting. However, since planting is started when a set time has elapsed from the time when the seedling planting apparatus 2 is lifted, the distance L from the ridge A to the planting start position is almost the set distance, and the edges are aligned.

[Alternative Embodiment] In the above embodiment, the working device 2 is automatically operated based on the time measured by the timer T. However, an alarm (buzzer) which operates when the timer T measures a set time is provided. And a lamp riddle) may be provided, and the work may be started artificially based on the notification by the alarm.

The timer T may set the time from the time of the automatic ascent.

[Brief description of the drawings]

Fig. 1 Side view of rice transplanter

FIG. 2 Steering system diagram

FIG. 3 is a control block diagram.

FIG. 4 is a plan view showing a turning operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Self-propelled machine 2 Paddy field work equipment A1 Automatic ascent control means T Timer A2 Control means A4 Time correction means A3 Automatic descent control means

Claims (4)

[Claims] 1. A paddy working device is connected to the rear of the self-propelled machine so as to be able to move up and down, and a lifting means for raising and lowering the paddy working device is provided. In a paddy working machine provided with automatic ascent control means for raising and lowering means, a paddy working machine is provided for setting a time period from an automatic ascent of the paddy working device or a set time after a set time has elapsed from the set time until the paddy working device is operated. A working device control device for a paddy working machine equipped with a timer. 2. The working device control device for a paddy working machine according to claim 1, further comprising control means for automatically operating the paddy working device when the time set by the timer is measured. 3. The working device of a paddy working machine according to claim 1, further comprising a time correcting means for correcting a time set by a timer with a stop time or a reverse time when the self-propelled machine is steered. Control device. 4. The paddy field according to claim 1, further comprising automatic lowering control means for automatically lowering the paddy field working device based on the return of the self-propelled machine to the straight traveling state. Working device control device for working machine.