JPH0525441B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a rice transplanter.
The present invention relates to a warning device that warns by detecting that the number of seedlings housed in a seedling tank of a rice transplanting device has decreased below a certain amount or by detecting a disconnected state of a seedling planting clutch of a rice transplanter.

[Prior art]

Conventionally, rice transplanters have been equipped with warning devices that detect when the number of seedlings stored in the seedling tank of the rice transplanter has decreased below a certain level and warn the operator of this.

[Problem to be solved by the invention]

However, with the above-mentioned conventional technology, during seedling planting work, when the seedling planting clutch is disconnected near the headland and then rotated to start seedling planting work again, the switching lever of the hydraulic device or the marker has to be switched. Various operations such as levers had to be performed, and as a result, it was sometimes forgotten to switch the seedling planting clutch to the continuous state. Since no warning device warns of this forgetting to switch, there is a problem in that the aircraft moves forward without planting seedlings after turning, resulting in continuous seedling failure.

[Means for solving problems]

This invention has taken the following technical means to solve the above problems.

That is, the lifting link mechanism 15 is installed at the rear of the towing vehicle body 1.
The rice transplanting device 9 is attached to the front part of the towing vehicle body 1 so as to be able to move up and down.A rotating arm 24 is attached to the upper end of the rotating arm 24, which can be switched between a state of protruding forward of the vehicle body and a state of falling down approaching the top surface of the vehicle body. A rice transplanter is provided with a sight 25, a control seat 6 is provided at the rear of the towing vehicle body 1, and a planting clutch lever 18 is provided on the side thereof.
The seedling tank 11 of the rice transplanting device 9 is provided with a seedling amount detector 21 that detects when the number of stored seedlings decreases below a certain amount, and the operating position of the planting clutch lever 18 indicates the intermittent state of the seedling planting clutch. A clutch position detector 22 capable of detecting the disconnected state of the clutch is provided, and a warning lamp 23 is turned on when the seedling amount detector 21 detects a decrease in seedlings or the clutch position detector 22 detects a disconnected state of the seedling planting clutch. Sight 25
This is a rice transplanter installed in

[Function and effect of the invention]

With the above-described configuration, the present invention is extremely easy to use because the warning lamp 23 that warns you when the number of seedlings stored in the seedling tank 11 of the rice transplanting device 9 decreases below a certain level can warn you if you forget to insert the seedling planting clutch. Not only can it be simplified, but since the seedling planting clutch does not forget to be engaged when turning, it is possible to prevent the continuous occurrence of missing plants in the work after turning.

In addition, when the seedling amount detector 21 detects a decrease in seedlings or when the clutch position detector 22 detects a disengaged state of the seedling planting clutch, a warning lamp 23 that lights up is projected to the front of the vehicle body, and when the vehicle falls close to the top surface of the vehicle body. Since the above-mentioned warning is overlooked because the operator is looking at the sight 25, which can be switched to the forward position of the vehicle, during rice planting work, the sight 25 is protruded in front of the vehicle in order to steer the vehicle in a straight line. Workability is very good without problems. Also, when driving on the road, the seedling planting clutch is always in the disengaged state, so the warning lamp 23 is on, but if the sight 25 is placed close to the top of the vehicle so that it does not protrude beyond the vehicle body, Since the warning lamp 23 is out of the front view at a low position, the warning lamp 23 does not interfere with driving when driving on the road. Therefore, it has good maneuverability both during rice planting work and when moving on the road, and the conventional problems can be satisfactorily solved with a simple configuration.

〔Example〕

An eleventh embodiment of the present invention will be described in detail based on the drawings.

Reference numeral 1 denotes a towing vehicle body, in which an engine is mounted on the upper front part of a frame 4 on which a pair of left and right front wheels 2, 2 and rear wheels 3, 3 are attached, covered with a bonnet 5, and a control seat 6 is mounted on the rear upper part. , and a control handle 7 is provided on the front side thereof. 8 is a spare seedling tank, which is provided on both the left and right sides of the control seat 6.

Reference numeral 9 denotes a rice transplanting device, in which a seedling tank 11 supported so as to move horizontally and reciprocally from side to side is provided at the upper front side of a planting part frame 10 which also serves as a planting transmission case.
A seedling planting rod 12 attached to the rear side so as to move up and down for planting seedlings is provided, and leveling floats 13 and 14 for leveling the soil surface are further provided at the lower part.

Reference numeral 15 denotes an elevating link mechanism whose base is pivotally attached to the towing vehicle body 1 and to which the rice transplanting device 9 is connected to the rear via a rolling hitch frame 16.

Reference numeral 17 denotes a hydraulic cylinder device that operates the lifting link mechanism 15 to move the rice transplanting device 9 up and down.

Reference numeral 18 denotes a planting clutch lever for intermittently operating the seedling planting clutch provided in the planting mechanism case, and when the clutch is rotated in the direction of arrow A, the clutch is connected, and in the opposite direction of arrow A, the clutch is disconnected. It consists of

A hydraulic switching lever 19 is used to switch the hydraulic switching valve 20 that controls the operation of the hydraulic cylinder device 17. The valve 20 is also automatically switched by the float 13 so that the ground pressure of the float 13 is maintained appropriately during the seedling planting operation.

Reference numeral 21 denotes a seedling quantity detector, which includes an actuator 21a which is supported in a protruding manner on the bottom plate of the seedling tank 11 (in the illustrated example, four are arranged side by side on the left and right), and when this actuator 21a is pushed downward. It is composed of a connected micro switch 21b so that it is turned off and turned on when it protrudes to the top surface of the bottom.

22 is a clutch position detector, and in the example shown in the figure, when the planting clutch lever 18 is rotated in the direction of arrow A, the B contact type micro switch 22a comes into contact with this lever and turns OFF. It is configured to turn on when rotated to .

Reference numeral 23 denotes a warning lamp, and the sight 25 is a colored transparent capsule provided at the upper end of a rotating arm 24 that can be switched between a state in which it projects in front of the bonnet 5 of the towing vehicle body 1 and a state in which it can be folded down onto the top surface of the bonnet 5. , is inserted into this capsule, and the lamp 23 blinks to give a warning.

Reference numeral 27 denotes a line drawing marker, which is provided at the tip of an arm that can be moved up and down on both the left and right sides of the rice transplanting device 9. When moved downward, it comes into contact with the soil surface of the planting field to draw a line, and this marker 27 indicates the line drawing position. When the sighting device 25 is aligned after turning the towing vehicle body 1, the distance between the outer row of seedlings planted before the turn and the inner row of seedlings planted after the turn is set to be maintained at a predetermined appropriate row. There is.

28 indicates a marker operation lever. 29 is a main clutch lever, and 30 is a change lever.

The electric circuit shown in FIG.
3 shows the wiring relationship between the seedling amount detector 21 and the clutch position detector 22, and 31 is the battery;
32 is a main switch, 33 is a flasher unit, and the microswitch 22a of the clutch position detector 22 is provided in parallel with each microswitch 21b of the seedling amount detector 21. but,
Both switches 22a and 2 are not necessarily connected as shown in the illustration.
1b need not be connected in parallel, but may be connected in series.

Further, the main switch 32 may be turned on when the main clutch is engaged and turned off when the main clutch is disengaged, in conjunction with the engagement and disengagement of the main clutch.

Next, the operation of the above example will be explained. First, in the seedling planting work, after storing seedlings in the preliminary seedling tank 8 and the seedling tank 11 on the side of the rice transplanting device 9,
After lowering the marker 27 on the side to be planted in the next step, the engine transmits power to each part. The main clutch and the seedling planting clutch are connected by respective clutch levers 29 and 18. At this time, the fourth
Regarding the electrical circuit shown in the figure, the main switch 32 is
ON, micro switch 21b of seedling amount detector 21
is OFF, the micro switch 22a of the clutch position detector 22 is held OFF, and the warning lamp 2 is turned off.
3 does not light up.

On the other hand, the towing vehicle body 1 moves forward, and the rice transplanting device 9 side
A seedling planting rod 12 that moves back and forth horizontally from side to side divides the seedlings into individual plants and floats 1 for leveling the soil.
They will be planted on the land leveled on 3rd and 14th.

At this time, the marker 27 draws a line to the land surface on the unplanted land side.

In this way, during seedling planting work, seedling tank 1
When the number of seedlings in the tank 1 gradually decreases and it is time to replenish the seedlings, the actuator 21a provided on the bottom plate of the seedling tank 11 protrudes and its micro switch 21b turns on. Therefore, the warning lamp 23 in Fig. 4 starts flashing, and the pilot notices the flashing warning lamp 23 in the sight 25, disconnects the main clutch, temporarily stops the planting operation, and uses the spare The seedlings in the seedling tank 8 are supplied to the seedling tank 11 in which the seedlings have run out. When the supply is finished, the warning lamp 23 will go out, so you can start planting again.

Next, when reaching the ridge and turning, the seedling planting clutch is disengaged with the planting clutch lever 18, the rice transplanting device 9 is raised via the hydraulic cylinder device 17, and the rice transplanting device 9 is turned. 9, switch the marker 27 left and right, continue operating the seedling planting clutch again, and make sure that the sight 25 is aligned with the line marked by the marker 27. Plant the seedlings after turning. resume.

At this time, the planting clutch lever 18 is operated in the opposite direction of arrow A to disengage the clutch, and at the same time the micro switch 22a is turned on, so the warning lamp 2
3 flashes and continues to issue a warning while turning.

If the warning lamp 23 flashes even after restarting the seedling planting work, the planting clutch lever 18
The pilot immediately noticed this operational error.

In particular, the warning lamp 23 that warns you when the number of seedlings stored in the seedling tank 11 of the rice transplanting device 9 decreases below a certain level can warn you if you forget to insert the seedling planting clutch, which greatly simplifies the configuration. Since there is no forgetting to put in the seedling planting clutch when turning, it is possible to prevent the occurrence of continuous plant shortages during the work after turning.

In addition, when the seedling amount detector 21 detects a decrease in seedlings or when the clutch position detector 22 detects a disengaged state of the seedling planting clutch, a warning lamp 23 that lights up is projected to the front of the vehicle body, and when the vehicle falls close to the top surface of the vehicle body. Since the above-mentioned warning is provided on the sight 25, which can be switched to the forward position, the operator can see the sight 25, which is protruding toward the front of the vehicle body in order to steer the vehicle straight ahead, during rice planting work. Workability is very good with no oversights. Also, when driving on the road, the seedling planting clutch is always in the disengaged state, so the warning lamp 23 is on, but if the sight 25 is placed close to the top of the vehicle so that it does not protrude beyond the vehicle body, Since the warning lamp 23 is out of the front view at a low position, the warning lamp 23 does not interfere with driving when driving on the road.

[Brief explanation of the drawing]

The figure shows one embodiment of the present invention.
The figure is a side view, FIG. 2 is a plan view thereof, FIG. 3 is a side sectional view of the main part, and FIG. 4 is an electric circuit diagram. Symbols in the figure: 1 is the towing vehicle body, 6 is the control seat, 9 is the rice transplanting device, 11 is the seedling tank, 15 is the lifting link mechanism, 18 is the planting clutch lever, 21 is the seedling amount detector, 22 is the clutch position detector , 23 is a warning lamp, 24 is a rotating arm, and 25 is a sight.

Claims (1)

[Claims] 1 A rice transplanting device 9 is attached to the rear of the towing vehicle body 1 so as to be movable up and down via an elevating link mechanism 15, and the front portion of the towing vehicle body 1 has two positions: one in a state protruding forward of the vehicle body and the other in a collapsed state approaching the top surface of the vehicle body. In a rice transplanter, a sight 25 is provided at the upper end of a rotating arm 24 that can be switched, a control seat 6 is provided at the rear of the towing vehicle body 1, and a planting clutch lever 18 is provided on the side thereof. The tank 11 includes a seedling quantity detector 21 that detects when the quantity of stored seedlings decreases below a certain level.
At the same time, a clutch position detector 22 is provided at the operating position of the planting clutch lever 18 to detect the disengaged state of the seedling planting clutch. A rice transplanter characterized in that a sighting device 25 is provided with a warning lamp 23 that lights up when a position detector 22 detects a disengaged state of a seedling planting clutch.