JPH0494604A - Sulky type rice transplanter - Google Patents

Abstract

PURPOSE:To obtain the title rice transplanter not causing unplanted parts near levees by liftably connecting a seedling transplanting device to the rear of traveling machine body, providing the rear of the machine body with a distance measuring sensor for measuring distance to an obstacle at the rear side of the machine body and equipping the rice transplanter with a means of letting an operator know the detected result of the sensor. CONSTITUTION:In a sulKy type rice transplanter, a seedling transplanting device 2 is connected through quadruple link mechanism 1 to the rear of a traveling machine body, the rice transplanter is provided with a seeding placing base 3 reciprocating left and right at given strokes, transplanting mechanism 4 of taking out stocks one by one from the bottom of the base and transplanting a lift cylinder 5 of detecting height from the mud surface and maintaining an attitude against the mud surface, mud surface ground sensors 7R and 7L of controlling a rolling cylinder 6 and a manuring device 9, a distance measuring sensor S3 of measuring a distance to an obstacle at the rear side of the machine body is attached to the rear of the machine body and the rice transplanter is equipped with a notifying means such as a display lamp 18 and a buzzer 19 of letting an operator know the detected result of the distance measuring sensor S3.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a riding type rice transplanter, and more particularly to a riding type rice transplanter in which a seedling planting device is connected to the rear of a traveling body so as to be able to rise and fall.

[Conventional technology]

Conventionally, when starting planting from the edge of a field in a field, the seedling planting device was raised and the driver moved the machine backwards while adjusting the position visually, and then started planting the seedlings. The attachment device was lowered and the planting machine started moving.

[Invention or problem to be solved]

However, in the conventional method described above, when the driver visually observes the rear of the aircraft, the raised seedling planting device becomes an obstacle, making it difficult to see the position of the ridge and the planting of the seedling planting device when it is lowered. It is difficult to align the seedlings with the ridge, and it is necessary to leave a gap between the starting position and the ridge for planting, and then manually plant later, or the back end of the seedling planting device is There was also a risk of damage due to collision with the ridge, and there was room for improvement in this respect.

The present invention aims to solve the above-mentioned problems.

[Means to solve the problem]

The characteristic configuration of the present invention is that a seedling planting device is connected to the rear of the traveling aircraft so that it can be raised and lowered, and a distance sensor that measures the distance to an obstacle on the rear side of the aircraft is arranged at the rear of the aircraft. The present invention includes a notification means for notifying the driver of the detection result of the distance measuring sensor.

[For production]

When moving the seedling planting device close to a ridge while moving the aircraft backwards, the driver backs up while checking the distance to obstacles such as ridges, which is accurately measured by the distance sensor, using the notification means, so it is always in the appropriate position. You can start planting from here.

〔Effect of the invention〕

Therefore, there will be no unplanted areas at the edge of the ridge, and less manual planting work will be required later, improving work efficiency. There is also less risk of damage.

〔Example〕

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

FIG. 1 shows a riding-type rice transplanter according to the present invention. This rice transplanter has a reciprocating link mechanism (1) at the rear of the riding type traveling machine.
A seedling planting device (2) is connected to the seedling planting device (2) so as to be able to rise and fall freely. The seedling planting device (2) includes a seedling platform (3) that is installed in a backward downward tilting position and reciprocates from side to side with a constant stroke;
A planting mechanism (4) that cuts and plants seedlings one by one from the lower end of the seedling stand (3), detects the height of the soil surface and maintains the posture of the seedling planting device (2) with respect to the mud surface. Lift cylinder (5)
, a pair of left and right mud surface ground sensors (7R), (7L) for controlling the rolling cylinder (6), etc., and a ground plate (8) for leveling the mud surface on the lower front side. It is installed so that it can move up and down as well as roll freely, and a fertilizing device (9) is installed at the rear.

The fertilizer application device (9) includes a feeding mechanism (11) that feeds out a predetermined amount of fertilizer to the lower part of the fertilizer storage hopper (10), and a flow pipe (13) that guides the fed fertilizer to the furrower (12).
), etc., and the feeding mechanism (11) is configured so that an electric motor (M) drives a feeding rotary body (14) having a concave portion for entering the fertilizer in its outer periphery. As shown in Fig. 3, this electric motor (M) is connected to a seedling planting device (
2), a sensor (Sl) that detects the rotational speed of the drive shaft, and a sensor (S2) that detects the switching speed state of the interplant transmission section interposed between the machine body traveling drive system and the seedling planting device (12). ), the control device (15) calculates the rotational speed so that the amount of feed per unit area is constant, and drives the electric motor (M).

A distance sensor (S3) is installed at the rear of the aircraft to measure the distance to the ridge when aligning the starting position for planting while moving the aircraft backwards at the edge of the ridge. ) is provided with means for notifying the driver of the measurement results. To be more specific, an infrared type distance measuring sensor (S,) is attached to the rear end of the aircraft frame (16), and a plurality of level meter type green and red indicator lamps (18) are installed on the aircraft operation panel (17). A buzzer (19) that emits a notification sound is also installed in parallel, and these are connected to the control device (19).
5). Further, a reverse movement state detection sensor (S4) is provided near the gear shift lever (20) of the aircraft body to detect when the lever (20) is operated to the reverse position, and
The main clutch (21) of the fuselage is configured to be of an electromagnetic drive type.

Next, the control operation will be explained. As shown in FIG. 5, first, if the reverse state detection sensor (S4) is in the detection state,
Distance sensor (S3) is activated (step #1. #2
). Note that at this time, the seedling planting device (2) is being driven upward. When the aircraft moves backwards and approaches the ridge until the measured distance (A') or the predetermined first set value (Ll) is reached, the green indicator lamp (18a) starts to light up and the buzzer (19) intermittently sounds. Sound the alarm (step #3. #4X, see Figure 4). When the vehicle moves further backwards and approaches the second setting value (L2), the red indicator lamp (18b) begins to light up and the buzzer (19) switches to a continuous sound (step #5. #
6) Warn the driver. When the distance (L3) at the limit position of the ridge is reached, the main clutch (
21) to enable planting (steps #9, #10, and #11).

The distance measuring sensor (S,) may be provided so as to be adjustable vertically, or may be provided so as to be changeable in direction left and right.

Further, instead of the infrared type, an ultrasonic type or a type similar to a laser type may be used.

The notification means may be of any type, such as a pointer display or a digital display.

It should be noted that the present invention is not limited to the structure of the attached drawings by adding numerals in the claims for convenient comparison with the drawings.

[Brief explanation of drawings]

The drawings show an embodiment of the riding-type rice transplanter according to the present invention.
2 is a rear view of the fertilization device, FIG. 3 is a control block diagram, FIG. 4 is a diagram showing notification operation timing, and FIG. 5 is a control flowchart. (2)...Seedling planting device, (S3)...
Distance sensor.

Claims (1)

[Claims] A seedling planting device (2) is connected to the rear of the traveling aircraft so that it can be raised and lowered, and a distance measurement sensor (S_3) is installed at the rear of the aircraft to measure the distance to obstacles at the rear of the aircraft. A riding rice transplanter equipped with a notification means for notifying the driver of the detection results of the distance sensor (S_3).