JPS62146505A - Alarm structure of rice planter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a notification structure for a rice transplanter in which a seedling planting device is connected to a traveling machine body so as to be movable up and down.

[Conventional technology]

Generally, a riding rice transplanter is constructed as described above, and a seedling planting device is connected to the rear end of the machine.

In the seedling planting work, the seedling planting device is raised every time the aircraft reaches a headland, and the aircraft turns with the seedling planting device separated from the field. Furthermore, the seedling planting device is often lowered before the aircraft completes its turn.

In other words, since the aircraft turns on the headland, the wheels of the aircraft tend to damage the field on the headland. Then, the headland is leveled using a leveling float equipped with a seedling planting device.

Therefore, it is desirable that the time from when the seedling planting device is raised to when it is lowered is short, and skilled workers tend to shorten the time from when the seedling planting device is raised to when it is lowered.

[Problem that the invention seeks to solve]

However, if the seedling planting device that has been raised while the aircraft is turning is lowered too quickly, the soil leveling float may come into contact with the seedlings. There is a need for technology that can make accurate judgments.

An object of the present invention is to obtain a notification structure that allows an operator to recognize at an accurate timing that a lowering operation of a seedling planting device is required through a rational configuration.

[Means for solving problems]

The present invention is characterized in that the rice transplanter having the above configuration is provided with a rotation sensor that detects that the traveling shell is rotated, and a level sensor that detects that the seedling planting device is in the raised position, and Means for delaying the detection signal from the rotation sensor 4NO, and operation to request a lowering operation of the seedling planting device when the delay signal from the means and the signal from the level sensor are input together. A notification device is provided, and its functions and effects are as follows.

[Function] When the above characteristics are configured as shown in FIG. 1, for example, when the traveling aircraft (A) is operated to turn, the turning sensor (2
The detection signal from 6) is input to the AND game 1-(29) after a predetermined time has elapsed from the turning operation via a delay circuit (D) serving as a means for delaying the detection signal, and at the time of this input, seedlings are planted. When the attachment device (B) is in the raised position, the signal from the level sensor (27) is A N D game) (29)
, the sound generation circuit (U) is activated and the seedling planting device (B) is prompted to lower the seedling planting device (B).

In other words, the timing of the lowering operation of the seedling planting device (B) is determined based on the turning operation that is inevitably performed on the headland.

〔Effect of the invention〕

Therefore, when turning the machine on a headland and lowering the seedling planting device, the operator must look back at the rear of the machine and judge whether the seedling planting device has reached a position where it will not come into contact with the seedlings. ,
There is no hassle, and the seedling planting device can be lowered at the appropriate timing by simply operating the lowering operation according to the K-instruction.Moreover, unlike the alarm device that activates the buzzer, there are no operations required. It has also become possible to have the worker recognize without error whether or not it is needed.

Furthermore, if the delay time of the means is set so that the alarm device is activated a little later than the timing when a skilled worker lowers the seedling planting device, the worker who has been reprimanded can This also has the effect of eliminating the inconvenience of having to be notified to lower the seedling planting device after the seedling planting device is lowered.

〔Example] Embodiments of the present invention will be described below based on the drawings.

As shown in Figure 5, the output from the engine (1) mounted at the front is transmitted to the front and rear vehicles through the transmission case (2).
A link mechanism (6) that is operated up and down by a hydraulic cylinder (5) is provided at the rear of the traveling stage body (8), which is configured with a traveling transmission system that transmits information to (3) and (4). ) is connected to the rear end of the seedling planting device (B) to constitute a riding rice transplanter.

The seedling planting device (B) is attached to the mission case (2).
A transmission case (8) to which power is transmitted via a planting clutch (7), and a seedling stand (9) on which cloak-shaped seedlings (powder) are placed.
), a plurality of planting arms (10) for planting one seedling from the seedling stand 9) onto the field, and a plurality of soil leveling flows) (11)...

In addition, the seat (12) is located approximately in the middle of the traveling aircraft (A).
A lift lever (13) for raising and lowering the seedling planting device CB) is provided on the side of the seat (12).

As shown in FIG. 4, the lifting lever (13) is linked with a hydraulic valve (14) that controls the hydraulic cylinder (5) and the planting clutch (7), and the lifting lever (13) is connected to the upper limit. The seedling planting device (B) is raised by being operated to the operating position (UP), and the seedling planting device (B) is raised to the field scene (G) by being operated to the neutral operating position (N). The linkage is configured such that when the seedling planting device (B) is lowered by lowering the seedling planting device (B) to a lowering operation position (DOWN), the planting clutch (7) is engaged and operated.

Also, a control system for automatically raising and lowering the seedling planting device (B) to maintain a constant seedling planting depth based on the ground pressure change in the center of the ground flow 1-(11)... is linked to the hydraulic valve (14).

That is, the operating piece (15) that operates the spool (14s) of the hydraulic valve (14) in both directions along the axis of the spool (14s) is connected to the swing shaft (16). ) and the link (17) between the leveling float (10)
are connected to each other via a wire (18), and a swing shaft (1
The spool (1) is attached to the end of the cylindrical shaft (19) that fits onto
A contact piece (20) is provided that allows the lift lever (13) to be operated only in the upward direction.
are connected to each other, and the sleeve sleeve (19) and the planting clutch (6) are also connected via a linkage mechanism (21).

In this rice transplanter, as shown in Fig. 2, during seedling planting work, when the machine (8) reaches the headland and performs turning 1i cropping, the seedling planting device (B) that has been ascending and searching is lowered. The system is equipped with a notification device that operates so that the timing to do so can be properly recognized.

'In other words, as shown in Figure 1, the notification device includes a sensor group (S) that detects the operation position of each operating tool provided on the aircraft body (A), and a control circuit group to which signals from the sensor group (S) are input. (T)
, a sound generating circuit (U) which is activated by a signal from the control circuit group (T) and makes five types of operation requests in addition to the request for lowering the seedling planting device (B) as described above, Generation circuit (
Switching transistors (22) are connected to the six input terminals that operate U), and speakers (24) are connected to the output terminals via amplifying transistors (23). The operation of the notification device when the aircraft (A) is turned will be explained.

As shown in FIGS. 1 and 5, a pair of steering clutch pedals (25) provided for the step (As) of the aircraft (A)
, (25) is provided with a turning sensor (26) that detects turning operation of the aircraft from the operation of the pedal, and the link mechanism (6) is connected to the seedling planting device (26) based on the amount of swing of the link mechanism (6).
Level sensor (2) detects that B) is in the raised position.
7), and a clutch sensor (28) is provided at a position that is brought into contact when the elevating lever (13) is operated to the lower operating position (DOWN).

Further, the rotation sensor (26) is connected to one pedal (25).
The two limit switches (2) are set so that this operation is detected as the start of the aircraft (8) turn only when the
6a), (26a) and EX, OR gate (26
b), and the detection signal from the OR gate (26b) is outputted to the AND gates 1 to (29) via a delay circuit (D) serving as a delaying means.

The level sensor (27) is connected to the AND gate (29).
) is also input, and furthermore, the AND gate (
The output from the switching transistor (29)
2) The system is configured to be input to one of the following.

Further, the detection signal from the level sensor (27) is branched and input to the second delay circuit (D2), and the output signal from the second delay circuit (D2) and the clutch sensor (28) are AND gate (
30), and a system is configured such that the output from this AND gate (30) is input to one of the switching transistors (22), and as shown in FIG. To explain along the travel trajectory (L) of the aircraft (8), the point is the point where the seedling planting device (B) is raised and the steering crank pedal (25) is depressed and the point (Po) is turned a predetermined distance from the point (Po). (P,), the sound generation circuit (IJ) based on the signal from the delay circuit (D)
is activated and requests the lowering operation of the seedling planting device (B) with human words, ``Please lower the part for planting.'' Next, after the seedling planting device (B) is lowered. , and when it reaches a point (P) after turning a predetermined distance, the sound generation circuit (U) is activated based on the signal from the second delay circuit (D2), and a message saying "Please engage the planting clutch" is activated. Planting in words (7)
) is requested.

As shown in Fig. 3, the delay circuit (D) consists of two stabilizing multi-high breaks (31), (32) and a one-shot multi-by break (33), and when the signal is input manually, The signal is converted into a pulse signal by a monostable multi-high break (31), then delayed for a predetermined time by a one-shot multi-by break (33), and the delayed signal is pulsed again by a monostable multi-high break (32). The delay time is determined by the values of the variable resistor (R) and capacitor (C) shown in the figure, and is determined by the settings of the variable resistor (1?).
Three cycles of delay time can be performed.

Moreover, as shown in FIG.
The system that outputs control signals to one input terminal is called the control full1 mechanism (34), and the control mechanism (34) outputs the remaining four messages to prompt predetermined operations depending on the situation. .

1' Alternative Embodiment] In addition to the above-described embodiment, the present invention includes, for example, a means for delaying by an oscillation circuit and a count circuit, and when a signal from a turning sensor is input, the count circuit starts counting the signal from the oscillation circuit. It is possible to use a device that operates so that a delayed signal is output when the count number reaches a predetermined number, and a message is written in letters on a transparent plate as the notification device.
The structure may be such that the message is raised by lighting the lamp.

[Brief explanation of drawings]

The drawings show an embodiment of the notification structure of the rice transplanter according to the present invention,
FIG. 1 is a block circuit diagram showing the configuration of the notification structure, and FIG.
Figure 3 is a plan view showing the turning trajectory of the machine, Figure 3 is a circuit diagram showing details of the delay circuit, Figure 4 is a perspective view showing the operating system of the hydraulic valve, and Figure 5 is an overall side view of the rice transplanter. . (26)... Rotation sensor, (27)...
・Level sensor, (A)... Traveling aircraft, (B)
...Seedling planting device, (D) ...means.

Claims (2)

[Claims] (1) An alarm structure for a rice transplanter in which a seedling planting device (B) is connected to a traveling machine (A) so as to be able to rise and fall freely,
) is rotated (26)
, and means (D) for providing a level sensor (27) for detecting that the seedling planting device (B) is in the raised position, and for delaying the detection signal from the rotation sensor (26), and the means ( D) and the level sensor (27
) is input together with the signal from the seedling planting device (
B) An alarm structure for a rice transplanter equipped with an alarm device that operates to request the lowering operation. (2) The notification structure for a rice transplanter according to claim 1, wherein the notification device is configured to issue a message by voice.