JPH0440427Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) This invention consists of a rice transplanter, specifically a seedling planting device that can be raised and lowered, a remaining amount detection means for detecting the remaining amount of stored material, and the remaining amount detection means. The present invention relates to a rice transplanter including an alarm that operates based on the detection result of the alarm, and an alarm circuit for the alarm.

(Prior Art) Conventionally, when seedling planting work is carried out using a rice transplanter, a fertilizer is mounted near the seedling transplanter, and the fertilizer is supplied by the fertilizer spreader to the seedlings planted by the seedling transplanter. things are being done.

However, the rice transplanter as described above includes a remaining amount detection sensor consisting of a solar cell or the like that detects the remaining amount of fertilizer in the fertilizer applicator, an alarm that operates based on the detection result from the detection sensor, and this alarm. an alarm circuit, when the remaining amount of fertilizer in the fertilizer applicator becomes less than a predetermined amount, the alarm is actuated by the output signal output from the detection sensor, and the fertilizer is added to the fertilizer applicator. The system informs the operator of what needs to be done.

(Problem to be solved by the invention) By the way, in conventional rice transplanters, the above-mentioned notification is constantly sent not only during seedling work using the seedling transplanting device, but also when moving the rice transplanter or replenishing planted seedlings. The circuit is maintained in the ON state, and therefore not only does the amount of battery connected to the notification circuit increase, but also the malfunction of the notification circuit is caused when the seedling planting device is not used for seedling planting. There was a problem that caused me some trouble.

The present invention was devised in view of the above-mentioned problems, and its purpose is to prevent malfunctions by turning off the notification circuit except when the seedling planting device is planting seedlings. To provide a rice transplanter capable of reducing battery consumption.

(Means for Solving the Problems) As shown in the embodiment of the drawings, the rice transplanter of the present invention includes a seedling planting device 3 that can be raised and lowered, a remaining amount detection means for detecting the remaining amount of the stored material, In a rice transplanter equipped with an alarm 8 that operates based on the detection result of the remaining amount detection means, and an alarm circuit 9 of the alarm 8, the alarm circuit 9 is provided with an alarm that operates in conjunction with the raising of the seedling planting device 3. The present invention is characterized in that it is provided with an opening/closing tool 10 that can be opened and closed by the user.

However, when the seedling planting device 3 is raised, that is, when the seedling planting device 3 is not performing seedling planting work,
The notification circuit 9 is opened and turned off by the opening/closing tool 10, and therefore, the battery connected to the notification circuit 9 is not consumed except during seedling planting work, and the battery is Moreover, by opening the notification circuit 9 at times other than when the seedling planting device 3 is in the process of planting seedlings, malfunctions can be prevented.

(Example) The rice transplanter according to the present invention will be described below with reference to the embodiments shown in the drawings.

FIG. 7 shows a four-wheel riding type rice transplanter, in which reference numeral 1 is a machine body, and running wheels 2 are provided at front and rear positions in the direction of movement, and a lifting device C is provided at the rear side of the machine body 1. A seedling planting device 3 that can be moved up and down is connected, and a fertilizer application machine 4 is installed behind the seedling planting device 3.

The seedling planting device 3 includes a seedling platform 31 tilted rearward and downward, a planting case 32 provided below the seedling platform 31, and a planting case 32 mounted on both sides of the planting case 32 in the width direction. a plurality of planting claws 33 and a plurality of floats 34 arranged on the lower side of the planting case 33;
As the machine body 1 advances, a predetermined amount of seedlings loaded on the seedling stand 31 are taken out by the planting claws 33 and successively planted in the field soil.

Further, an operating lever 5 for operating the seedling transplanting device 3 is provided near the driver's seat S of the rice transplanter, and as shown in FIG. By moving the seedling planting device 3, the raising and lowering operation of the raising and lowering device C of the seedling planting device 3 and the adjustment of the planting speed of the seedling planting device 3 are performed.

That is, in the guide plate 6 shown in FIG. 1, a guide groove 61 having a predetermined length is formed, and the guide groove 61
From one end side to the other end in the length direction, there is a rising position A where the lifting device C is switched to the rising side, a falling position B where the lifting device C is switched to the descending side, and a low speed position where the planting speed of the seedling planting device 3 is slowed down. C, and a high-speed position D where the planting speed is high are sequentially formed in a straight line, and the lifting device C is held in a neutral state at a lateral position between the raised position A and the lowered position B. A neutral position is formed.

Thus, during seedling planting work using the rice transplanter, the operating lever 5 is moved from the raised position (a) of the guide groove 61 to the lowered position (b), and the seedling planting device 3 is moved from the raised side to the predetermined planting position. After that, the operation lever 5 is selectively moved to the low speed position C or the high speed position D to perform seedling planting work at a predetermined planting speed, and also to interrupt the seedling planting work. When carrying out leg work on seedlings, etc., the operating lever 5 is moved to the neutral position E, and the lifting device C is held in the neutral state.

In the embodiment shown in the figure, left and right marker setting positions H and H are provided on the sides of the low-speed position C and high-speed position D of the guide groove 61, respectively, and the operation lever is placed at each of these positions. By moving the marker 5, a predetermined marker is set.

The fertilizer applicator 4 is composed of a transparent hopper 41 that stores fertilizer, a feeding section 42 that feeds out the fertilizer stored in the hopper 41, a feeding pipe 43 connected to this feeding section 42, and the like. Device 3
During the seedling planting work, the fertilizer in the hopper 41 is delivered to the vicinity of the seedlings planted by the seedling planting device 3 via the feeding section 42 and feeding pipe 43.

Further, in the rice transplanter, a reference sensor 7 comprising a solar cell is used as a residual amount detection means for detecting the remaining amount of fertilizer in the hopper 41 of the fertilizer applicator 4.
a, and a detection sensor 7b also made of a solar cell.
The detection sensor 7b is attached to the hopper 41 at a predetermined height position, and the reference sensor 7a is attached to the seedling stand 31 in the seedling planting device 3.
the reference sensor 7.
The amount of fertilizer remaining in the hopper 41 is detected based on the output voltage from the detection sensor 7b and the sensor 7b.
and an alarm circuit 9 for the alarm 8 is formed so that the alarm circuit 9 activates the alarm 8 when the remaining amount of fertilizer in the hopper 41 is reduced to a predetermined amount or less. The system notifies the operator of fertilizer addition work.

Therefore, the above-mentioned notification circuit 9 is provided with an opening/closing tool 10 that opens and closes in conjunction with the rise of the seedling planting device 3, so that the opening/closing tool 10 is operated when the seedling planting device 3 is not in operation for planting seedlings. The notification circuit 9 is opened and the notification circuit 9 is maintained in an off state.

Specifically, as shown in FIG. 1, two limit switches or the like are used as the opening/closing tools 10, and each opening/closing tool 10 is moved between the raised position A and the neutral position of the guide groove 61 formed in the guide plate 6. and each opening/closing tool 9 is connected to a control box 11 in which the notification circuit 9 is installed.
In this way, the operating lever 5
When moving the rice transplanter between fields by moving the rice transplanter to the raised position A, or by moving the operating lever 5 to the neutral position E, the seedling platform 3
When carrying out the work of adding seedlings to the seedlings 1, the operation lever 5 is used to turn off each of the opening/closing tools 10, and the notification circuit 9 in the control box 11 is maintained in the OFF state. The operation of each of the sensors 7a and 7b is stopped.

As shown in FIG. 2, the notification circuit 9 includes a constant voltage regulator R connected to a battery B.
, the reference sensor 7a and the reference sensor 7
A first operational amplifier A1 connected to the detection sensor 7b and a second operational amplifier A2 connected to the detection sensor 7b are connected in parallel.

Furthermore, two first and second comparators C1 and C2 are used which have two input terminals and control the output system by comparing the input voltages input to each terminal, and one input of each of the comparators C1 and C2 is used. the first terminal connected to the reference sensor 7a;
A second operational amplifier A2 connected to the output side of the operational amplifier A1 and connected to the detection sensor 7b.
The output side of the first and second comparators C
1, connect to the other side input terminal of C2.

To the input terminals of each of the comparators C1 and C2,
When connecting the output sides of each of the operational amplifiers A1 and A2, the first comparator C1 and the second comparator C2 are connected so that they are inverted, that is, in the first comparator C1. connects the first operational amplifier A1 to its negative input terminal, and connects the first operational amplifier A1 to its positive input terminal of the second comparator C2, and connects the first operational amplifier A1 to its negative input terminal.
The output side of the second operational amplifier A2 is connected to the positive input terminal of the comparator C1, and the second operational amplifier A2 is connected to the negative input terminal of the second comparator C2.
The output side of operational amplifier A2 is connected.

A first transistor T1 is connected to the output terminal of the first comparator C1, and a normal lamp L1 connected to the battery B is interposed on the output side of the transistor T1. A second transistor T2 is connected to the terminal, and an alarm lamp L2 and an alarm buzzer BZ as the alarm 8 are interposed in parallel on the output side of the transistor T2.

Therefore, between the battery B and the constant voltage regulator R, the normally closed contacts 10a, 10a of each of the opening/closing tools 10 are connected in series to the battery B side, so that each of the opening/closing operations by the operation lever 5 is performed. By pushing the tool 10, the contacts 10a are opened and the notification circuit 9 is turned off.

In this way, if the detection sensor 7b is shielded from light by the fertilizer in the hopper 41, that is, if sufficient fertilizer remains in the hopper 41, no electromotive force is generated in each sensor 7b. , and even if it occurs, it is extremely small, so
The output voltage from the second operational amplifier A2 to the second comparator C2 becomes zero or small, and therefore, in the comparator C2, the output voltage of the operational amplifier A2
The output voltage from the reference sensor 7a is compared with the reference value output from the reference sensor 7a via the first operational amplifier A1, and the output voltage from the second comparator C2 is not output from the second transistor T2. The first comparator C1 outputs the signal only to the first transistor T1, and when the transistor T1 opens, the normal lamp L1 lights up, and it is notified that there is sufficient fertilizer in the hopper 41.

Further, when the fertilizer in the hopper 41 is consumed below the mounting position of the detection sensor 7b due to the fertilization work of the fertilizer applicator 4 that is carried out simultaneously with the seedling planting work of the seedling planting device 3, the detection When the sensor 7b is exposed to light, a large electromotive force is generated, and this electromotive force is input to the second comparator C2 via the second operational amplifier A2. The output of the second comparator C2 is compared with the output reference value.
is output to the transistor T2, and the transistor T
2 is opened, the warning lamp L2 and the warning buzzer BZ are energized, and both of them are activated to report to the operator that the fertilizer in the hopper 41 has run out.

Therefore, when the seedling planting device 3 is raised and moved between fields, the seedling mounting table 31 of the seedling planting device 3
When carrying out the work of adding seedlings to the plant, the operating lever 5 is moved to the raised position A or the neutral position E of the guide plate 6 shown in FIG. The normally closed contacts 10a of each of the opening/closing tools 10 are opened by the lever 5, and the notification circuit 9 is opened.
is opened, and the notification circuit 9 is turned off.

Further, as shown in FIG. 3, the notification circuit 9 installed in the control box 11 is provided with a main switch MS which is turned on during seedling planting work by the seedling planting device 3. It is also possible to make the main switch MS interlock with the operation lever 5, that is, as shown in FIG. When the seedling planting device 3 is lowered from the ascending side using the lever 5 to start seedling planting, the main switch MS is closed to turn on the notification circuit 9, and the seedling planting device 3 lowers the seedlings. When the operation lever 5 is not in the planting operation, that is, when the operating lever 5 is moved to the raised position A or the neutral position E, the main switch MS is opened to open the notification circuit 9, The notification circuit 9 is maintained in an off state.

Furthermore, in the present invention, as shown in FIG. 5, a plurality of hoppers 41 are provided in the seedling planting device 3, and the detection sensor 7b is attached to each hopper 41, and a plurality of reference sensors 7a are used. Each of these reference sensors 7a is connected to the hopper 4.
1, each of the reference sensors 7a is input to the control box 11 together with the detection sensor 7b, and the maximum value of each of the reference sensors 7a or the average value of each of the reference sensors 7a is used as the reference value. The remaining amount of fertilizer in each hopper 41 may be detected, and in this case, the remaining amount of fertilizer in each hopper 41 can be accurately detected without being affected by the surrounding environment.

Further, in the present invention, as shown in FIG. 6, the hopper 41 is formed of a transparent material, and is placed on the opposite side of the hopper 41 from the cockpit S, that is, in a position where the operator can see it through the hopper 41. , it is desirable to install the detection sensor 7b, and in this case, when there is no fertilizer in the hopper 41,
It becomes possible to check the alarm directly with the operator's eyes as well as with the alarm 8 provided by the notification circuit 9.

In the above-mentioned embodiment, a case has been described in which the remaining amount of fertilizer in the hopper 41 in the fertilizer application machine 4 is detected. It can also be applied to quantity detection.

(Effect of the invention) As explained above, in the rice transplanter of the present invention, the raising of the seedling planting device 3 is activated by the notification circuit 9 which detects the stored material and operates when the stored material becomes less than a predetermined amount. An opening/closing tool 10 is provided that opens and closes in conjunction with the
When the seedling planting device 3 is raised, that is, the seedling planting device 3
When not performing seedling planting work, the opening/closing tool 1
Since the notification circuit 9 is opened via 0 and the notification circuit 9 is maintained in an OFF state, the battery connected to the notification circuit 9 is disconnected when the seedling planting device 3 is not in the seedling planting operation. The battery B can have a long life without being consumed, and the notification circuit 9 is opened and turned off except when the seedling planting device 3 is in the process of planting seedlings. Furthermore, it has become possible to prevent the notification circuit 9 from malfunctioning.

[Brief explanation of the drawing]

Fig. 1 is a drawing showing the main parts of the rice transplanter according to the present invention, Fig. 2 is a circuit diagram showing the notification circuit of the rice transplanter,
3 to 6 are drawings showing other embodiments, and FIG.
The figure is a side view showing the overall structure of the rice transplanter. 3... seedling planting device, 8... alarm, 9... alarm circuit, 10... opening/closing tool.

Claims (1)

[Scope of utility model registration request] A seedling planting device 3 that can be raised and lowered, a remaining amount detection means for detecting the remaining amount of the stored material, an alarm 8 that operates based on the detection result of the remaining amount detection means, and this alarm 8.
A rice transplanter comprising a notification circuit 9, characterized in that the notification circuit 9 is provided with an opening/closing tool 10 that opens and closes in conjunction with the raising of the seedling planting device 3.