JP3142161B2 - Paddy field machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a paddy field working machine in which a ground machine is connected to a traveling machine so as to be able to move up and down.

[0002]

2. Description of the Related Art Some paddy field working machines are provided with an ascending operation section for forcibly ascending operation of a ground working apparatus by being manually operated. When the ascending operation section is operated, The ground working device is configured to be forcibly operated to the maximum ascending position.

For example, in a riding type rice transplanter which is an example of a paddy field working machine, when the traveling machine body completes one planting process and reaches a headland during planting work in a field, the traveling machine body is turned on the headland. To start the next planting process. In this case, when the traveling aircraft reaches the headland, it is necessary for the pilot to disengage the work clutch, operate the ground work device upward, and operate the steering wheel to turn the traveling aircraft. It is difficult for various operators to perform various operations. Accordingly, as described above, the climbing operation unit that can be easily operated by the pilot is provided, so that the climbing operation of the ground work device can be quickly performed.

[0004]

However, with the structure described in "Prior Art", the ground operating device is raised to the maximum ascending position when the lifting operation section is operated. When descending to the mud surface, it takes time to descend the ground working device, and there is room for improvement in workability. The present invention relates to a paddy field working machine configured such that a ground operation device is forcibly operated to operate by operating a lifting operation unit. It is an object of the present invention to avoid a situation where it takes time to lower the working device.

[0005]

A feature of the present invention is that a paddy working machine is configured as follows. [1] To achieve the above object, a first aspect of the present invention is to connect a ground working device to a traveling body so as to be able to move up and down freely, and to manually set the ground working device so that the ground working device is set in advance. Rank
The ground work equipment so that
Provided with a rising operation unit for operating the location of the driving device, comprising a detection means for detecting that a working state, the increase amount of the ground work apparatus according to the rise operation unit based on the detection of said detecting means and the previously Different from the set height position
Control means for changing to a height position .

[2] In order to achieve the above object, a second aspect of the present invention is to connect a ground working device to a traveling body so as to be able to move up and down freely, and the ground working device is preset by being manually operated. Set position
The ground work equipment so that
A lifting operation unit that operates the driving device of the device, and a detection unit that detects that the vehicle is in a working state, and detects a rising amount of the ground working device by the lifting operation unit based on detection of the detection unit. A control means is provided for raising the ground working device from the mud surface to a sufficient level.

[3] To achieve the above object, a third aspect of the present invention is the configuration according to the first or second aspect, wherein the rotational speed of the engine mounted on the traveling vehicle body becomes larger than a predetermined value. For example, the detecting means is configured to detect that it is working.

[4] In order to achieve the above object, the first aspect of the present invention is directed to the first aspect.
In the configuration of [1] or [2] or [3], set in advance
Operation unit forcibly operating to the set position
Separately, an artificial operation tool that can be raised and lowered freely to any height position
It is prepared.

[0009]

According to the first aspect of the present invention, when the ascending operation section is operated and the ground work device is ascended, the ascending operation is performed based on the detecting means for detecting that the paddy working machine is in the working state. The rising amount of the ground working device by the operation unit is changed. Thus, according to the first aspect of the present invention, when the ascending operation unit is operated, in a work state in which it is not necessary to perform ascending operation of the ground work device, the amount of elevation of the ground work device by the ascending operation unit is reduced. What is necessary is just to set so that it may become small, and when lowering the ground working device next time, compared with the structure which descends from the maximum ascent position like the structure described in "conventional technology", the ground working device The time of the lowering operation of the vehicle becomes short.

[II] According to the feature of claim 2, when the ascending operation section is operated to operate the ascending ground working device, the ascending operation is performed based on the detecting means for detecting that the paddy working machine is in the working state. The rising amount of the ground working device by the operation unit is set to a rising amount sufficient for the ground working device to float up from the mud surface. Thus, according to the feature of claim 2, when the ascending operation part is operated, only the amount of ascent sufficient for the ground working device to rise from the mud surface is raised, so that the ground working device is then lowered. In this case, the time of the descending operation of the ground working device is shorter than that of the structure in which the descending operation is performed from the maximum ascending position, such as the structure described in “Prior Art”.

[III] According to the feature of claim 3, similar to the case of claim 1 or 2, it has the "action" of the above-mentioned [I] [II],
In addition, it has the following “action”. For example, comparing the traveling state of a paddy field working machine or running over a ridge with the working state in a field, the load from the ground working device is not applied to the engine when running on a road or over a ridge. ) Is set to a relatively low value, whereas both the running load and the load from the ground work device are applied to the engine in the working state in the field, so the engine speed (accelerator setting position) is compared. It is set to the target.

Thus, according to the features of claim 3,
If the engine speed is greater than a predetermined value, it is determined that the vehicle is in the working state, and the amount of rise of the ground working device by the lifting operation unit is set to a rising amount sufficient for the ground working device to float up from the mud surface. There is a configuration in which the work state is detected by a relatively clear numerical value called the engine speed, so that the work state can be easily determined and detected.

[IV] According to the feature of claim 4, the case of claim 1 or 2 or 3
Similarly to [I], [II] and [III],
In addition to this, the following “actions” are provided.
I have. Forced ascent operation to a preset position
Lifting operation to an arbitrary height position separately from the lifting operation part to make
Equipped with flexible manipulators. As a result, the claims
According to the feature of 4, the ground work equipment is raised and lowered to any height
Manipulators that can move force ground work equipment
As it is provided separately from the lifting operation unit to operate,
In addition to the forced ascent drive to the set position by the operation unit,
By operating the operating tool, the ground work equipment can be
It can be driven up and down to any height.

[0014]

According to the first aspect of the present invention, in a paddy working machine configured to forcibly perform an ascending operation of a ground working device by operating an ascending operation section, it is possible to detect that a working state is detected. By configuring so that the amount of rise of the ground work device by the ascent operation unit is changed based on the ascending operation of the ground work device following the ascent operation of the ground work device by the ascend operation unit, The time required for the descent operation can be shortened, and the next operation state can be quickly entered, so that the operation efficiency of the paddy field working machine can be improved.

According to a second feature of the present invention, in a paddy field working machine configured to forcibly operate the ground working device by operating the ascending operation section, based on detection of a working state. When the ascent operation section is operated,
By configuring so that only the amount of lifting sufficient for the ground working device to rise from the mud surface is lifted, when the ground operating device is lowered by the lifting operation unit and then the ground working device is lowered, The time required for the lowering operation of the device can be shortened, and the next operation state can be quickly entered, so that the operation efficiency of the paddy field working machine can be improved.

According to the features of claim 3, claim 1 or 2
"Effects of the Invention" of Claim 1 or 2 as in the case of
In addition to this “effect of the invention”, the following “effect of the invention” is provided. According to the feature of claim 3, by paying attention to the fact that the number of revolutions of the engine (accelerator setting position) is generally different between a paddy field working machine, for example, running on a road or crossing a ridge, and a working state in a field. This makes it possible to easily determine and detect the work state by the detection means, thereby simplifying the detection of the work state and reducing the cost.

According to the feature of claim 4, claim 1 or 2
Or 3 in the same manner as in claim 1 or 2 or 3 above.
It has the “effects of the invention” and is added to the “effects of the invention”.
The following "effects of the invention" are provided. Claim
According to the feature of 4, work equipment is set in advance just by operating
Operation unit that is driven up to the set height position, and control
Artificial operation that can drive the ground work equipment up and down to an arbitrary height
Since it is equipped with a tool, you can use
And improve the operability of the paddy working machine.
We were able to.

[0018]

Embodiments will be described below with reference to the drawings. FIG.
2 shows a riding type rice transplanter which is an example of a paddy field working machine.
In this riding type rice transplanter, a seedling planting device 2 (corresponding to a ground working device) is connected to a rear portion of the riding type traveling machine body via a link mechanism 1 so as to be freely liftable and freely rollable around a longitudinal axis. It is configured. The seedling planting device 2 includes a link mechanism 1
The seedling rest 4 which reciprocates and moves laterally with a constant stroke with respect to the planting transmission case 3 combined with the frame which is rotatably connected around the front and rear axes, and the seedlings are taken out one by one from the lower end of the seedling rest 4. It is provided with a planting mechanism 5 for planting in a field, a plurality of ground floats 6 sliding on a mud surface, and the like. It is provided to be able to swing back and forth. Power is transmitted from the traveling machine body to the seedling planting device 2 via the transmission shaft 8 and the planting clutch 9 so that the seedling planting operation can be performed while traveling.

As shown in FIG. 1 and FIG.
Is configured to be manually lifted and lowered by operating a lifting lever 12 disposed on the side of the driver's seat 11 of the aircraft control unit 10, and to set the seedling planting device 2 on a mud surface. Elevation control means for maintaining the height is provided. The lifting lever 12 is supported so as to be swingable around the horizontal axis P,
The swing amount of the lifting lever 12 is detected by the potentiometer PM1, and the output of the potentiometer PM1 is input to the control device 13 (corresponding to control means). The operating position of the raising / lowering lever 12 is set to the raising position, the neutral position, the lowering position, and the planting position of the seedling planting apparatus 2, and the output of the potentiometer PM1 determines which operating position the raising / lowering lever 12 is in. It is configured. Control device 1
3 is configured to switch the electromagnetic hydraulic control valve V for the hydraulic cylinder 14 for raising and lowering the seedling planting apparatus 2 based on the operation of the raising and lowering lever 12.

The ground float 6 is supported so as to be able to ascend and descend around a horizontal axis at the rear, and the amount of vertical swing based on the fluctuation of the ground pressure of the ground float 6 at the right and left center is used to detect a potentiometer P for detection.
M2 is detected by the detection potentiometer PM2
Is input to the control device 13. Lift lever 1
2 is operated at the planting position, the control device 13 sets the hydraulic control valve V so that the output of the setting potentiometer PM3 provided in the aircraft operating section 10 matches the output of the detecting potentiometer PM2. An up-and-down control means for maintaining the seedling planting apparatus 2 at a set height with respect to the mud surface by performing the switching control is configured.

The planting clutch 9 is configured to be turned on and off by an electric motor 15.
Reference numeral 5 is configured to be drive-controlled by the control device 13 based on the operation of the clutch operation switch SW1.
The drawing markers 7 are provided on both left and right sides of the grip portion of the lifting lever 12.
An operation switch SW2 for selecting the loading / unloading is provided. The left and right line drawing markers 7 are configured to be biased by a spring toward the action posture, to be retired with the raising operation of the seedling planting apparatus 2, and to be locked and held in the retirement posture. , SL2, the lock holding is released by the excitation drive. The electromagnetic solenoids SL1 and SL1 on the side on which the operation of the operation switch SW2 is operated in conjunction with the on operation of the clutch operation switch SW1.
The configuration is such that the SL2 is excited and the drawing marker 7 on the side on which the operation of the operation switch SW2 is operated is in the operating posture.

A lifting operation switch SW3 (corresponding to a lifting operation unit) for forcibly operating the seedling planting device 2 is provided in the aircraft operating unit 10, and when the raising operation switch SW3 is pressed once, the seedling is planted. When the device 2 is forcibly operated to be raised and the raising operation switch SW3 is pressed again, the seedling planting device 2 at the raised position is configured to be lowered.

The raising position when the seedling planting apparatus 2 is forcibly raised by operating the raising operation switch SW3 is:
It is configured to be changed according to a change in the rotation speed of the engine 16 of the traveling body. As shown in FIGS. 1 and 2, a rotation speed detection sensor 17 (corresponding to detection means) for detecting the rotation speed of the engine 16 is provided, and the output of the rotation speed detection sensor 17 and the output of the raising operation switch SW3 are It is input to the control device 13.

Thus, when the rotation speed of the engine 16 is set to a predetermined value or more, for example, at a position close to the maximum accelerator position (for example, during the planting operation in the field where the planting clutch 9 is engaged and operated). The hydraulic pressure control valve is controlled by the control device 13 so that the seedling planting device 2 is raised by an amount sufficient to cause the ground float 6 to slightly float from the mud surface with the pressing operation of the raising operation switch SW3. V is switched and controlled. In this case, after detecting that the grounding float 6 hangs down, the seedling planting device 2 is moved up a little further.
Stops. When the rotation speed of the engine 16 is lower than a predetermined value (for example, while traveling on a road or crossing a ridge), when the raising operation switch SW3 is pressed, the seedling planting apparatus 2 is raised to the maximum raising position.

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

[Brief description of the drawings]

FIG. 1 is a block diagram of control.

FIG. 2 is an overall side view of a riding rice transplanter.

[Explanation of symbols]

 2 Ground work equipment 13 Control means 16 Engine 17 Detecting means SW3 Ascent operation section

Claims (4)

(57) [Claims] A ground work device (2) is connected to a traveling body so as to be able to move up and down freely, and is manually operated to forcibly raise the ground work device (2) to a preset set position. The driving device of the ground working device (2)
A lifting operation section (SW3) for operating the device, and a detecting means (17) for detecting that the apparatus is in a working state, and the lifting operation section (SW3) based on the detection of the detecting means (17). The amount of rise of the ground work device (2) is changed to a height position different from the preset height position.
A paddy field working machine further comprising control means (13). 2. A ground work device (2) is connected to a traveling body so as to be able to move up and down freely, and is manually operated to forcibly raise the ground work device (2) to a preset set position. The driving device of the ground working device (2)
A lifting operation section (SW3) for operating the device, and a detecting means (17) for detecting that the apparatus is in a working state, and the lifting operation section (SW3) based on the detection of the detecting means (17). A paddy field working machine comprising a control means (13) for setting a rising amount of the ground working device (2) to a rising amount sufficient for the ground working device (2) to float up from the mud surface. 3. An engine mounted on a traveling vehicle.
The paddy working machine according to claim 1 or 2, wherein said detecting means (17) is configured to detect a working state when the number of revolutions of said rotating machine exceeds a predetermined value. (4) Forced to the previously set position
In addition to the ascending operation section (SW3),
Equipped with an artificial operation tool (12) that can be moved up and down to the height position
The paddy field working machine according to claim 1, 2 or 3.