JP2723876B2 - Riding rice transplanter - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rice transplanter provided with a chemical spraying device.

[0002]

2. Description of the Related Art Various types of riding rice transplanters of this type equipped with a drug spraying device have been proposed. Devices for spraying a drug on a field are roughly classified into the following [1] and [2].
Has been conventionally known.

[1] Gravity drop type A path for supplying a drug to a field is formed in a fan shape so as to expand toward the field, and a wall for dispersing the drug is arranged in this path, In the course of falling along this path, the granular drug is configured such that it can be uniformly dispersed by collision with the wall or by the guiding action of the wall (for example, Japanese Utility Model Publication No. 54-33852, or See Japanese Utility Model Publication No. 55-6248).

[2] Lateral blow-out type A medicine ejection nozzle is arranged on one lateral side of the traveling machine body toward the lateral outside of the machine body, and a plurality of pre-planted seedling rows located on the lateral side of the traveling machine body (See, for example, Japanese Utility Model Laid-Open No. 50-64514, or
-144034).

[0005]

However, in the spraying device having the conventional structure described in the former [1], since the dispersion is performed in the horizontal direction by using the falling motion of the medicine by its own weight, the medicine is dispersed. It is difficult to increase the angle, and when attempting to spray the medicine widely, there is a problem that the vertical dimension of the spraying device becomes large and the whole device becomes large.

[0006] Further, in the conventional structure described in the latter [2], since the medicine is given a blowing-out movement to the lateral side, and is sprayed and supplied to the planted seedlings at the lateral side position of the traveling machine body.
There is a problem that it is difficult to uniformly diffuse the medicine in the advancing direction and in the lateral width direction, because more medicine is sent closer to the blowing nozzle. In addition, with the structure that sprays the seedlings that have already been planted on the lateral side of the machine, it is impossible to spray the seedlings after the traveling machine has passed in the last step of planting the seedlings. There is also a problem in that it becomes necessary.

In order to drive the chemical spraying device, it is conceivable to use power from a seedling planting device. But,
In those in which the seedling planting device is configured for multiple rows,
When using power from a transmission system that drives one of the planting strips, such as a planting arm, which is relatively easy to take out power, the planting system is changed by a mechanism for changing the number of planting strips, which is referred to as each strip clutch. When the seedling planting operation is performed without driving, the drug spraying device may not be driven, so there is room for improvement.

[0008] It is an object of the present invention to suppress the increase in the vertical height of the medicine spraying device to reduce the overall size, and to spread the medicine from the spraying device as widely and uniformly as possible.
Another advantage is that a rice transplanter that operates with power from the seedling planting apparatus and that reliably operates the drug spraying apparatus regardless of how the clutch for changing the number of planting lines is operated is rationally configured.

[0009]

SUMMARY OF THE INVENTION The present invention is characterized in that a drug spraying device is provided at a position rearward of a seedling planting device connected to the rear of a riding type traveling machine body, and the seedling planting device is used for a plurality of lines. And, forming at least two transmission systems for the seedling planting device, providing a clutch for independently driving and stopping the planting streaks on both the left and right sides, and the medicine spraying device, A rotating body that scatters the medicine supplied from the feeding mechanism with the rotation, and a diffusion guide body that spreads the medicine scattered by the rotating body to approximately the seedling planting width and sends it to the field scene, Further, the present invention is characterized in that it has two independent transmission mechanisms for driving the feeding mechanism with power from the respective drive systems of the planting streaks on both the left and right sides of the seedling planting apparatus. It is as follows.

[0010]

According to the above-mentioned feature, after the medicine sent out from the feeding mechanism is bounced off by the rotating body, the diffusion guide function of the diffusion guide member achieves uniformity in the seedling planting width direction in the field scene. In such a case, the medicine is forcibly scattered by the rotating body, so that the dispersion angle can be easily enlarged, and the medicine moving at a relatively high speed is guided, and In addition, since it is diffused, it is possible to give directionality to the spraying and to secure a desired spraying amount even at a position separated from the rotating body.

Further, since the dispersing device is disposed at a position further rearward of the seedling planting device behind the riding type traveling, the spraying direction is adjusted with respect to the field scene at a position far away from the control section on which the pilot rides. Controlled spraying of medicine. Therefore, it is easy to carry out work in a favorable working environment by minimizing the scattering of the medicine near the control section.

[0012] Furthermore, while the medicine to be sprayed is to be sprayed on the seedlings in the body running line, the spraying device is located on the rear side in the traveling direction from the seedling planting device. Is sprayed on the field scene where the seedlings in which the seedlings have been planted exist. Therefore, it is possible to avoid a situation in which the drug adheres to the root of the seedling before planting.

Further, since two transmission mechanisms are provided between the drive systems of the implanted strips on both the left and right sides and the medicine spraying device, power is applied to the drug spraying device even if any of the respective clutches is disengaged. It is possible to convey. In other words, when the operation is performed in a state where the number of planting lines is changed, the planting operation of the predetermined number of lines is stopped from one side in the left-right direction of the seedling planting device, and the other side is always operated. In such a work, the medicine spraying device can be operated by the power from the operated side.

[0014]

Accordingly, the medicine can be spread widely and evenly in the lateral direction after traveling of the machine body, and can be applied to the seedling before planting in a good working environment while avoiding an increase in the size of the whole medicine spraying apparatus. Thus, a rice transplanter that can be sprayed without causing the adhesion of chemicals and that is operated by the power from the seedling planting device even when the clutch for changing the number of planting lines is disengaged has been rationally configured.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 7, a seedling planting apparatus A is connected to a rear end of a riding type body 2 having front and rear wheels 1 and 1 via a link mechanism 4 which moves up and down by driving a hydraulic cylinder 3, and this seedling planting is performed. A fertilizer application device B and a chemical spray device C are attached to the rear position of the device A to constitute a rice transplanter capable of fertilizing and spraying a chemical.

As shown in FIG. 1 and FIG.
Is a transmission case 5 to which power is transmitted from the body, three chain cases 6, 6, 6 to which power from the transmission case 5 is transmitted via the respective clutches E, E, E; Five planting arms 7 driven by power from 6, a seedling rest 8 on which mat-shaped seedlings W are placed,
It has three leveling floats 9, 9, and 9 and is configured for five sections, and by selecting and operating each section clutch E, E, E, two sections or three sections from the side. It is configured such that only the planting arms 7 can be driven.

The fertilizer applicator B includes a hopper 10 for storing granular fertilizer, a feeding case 11 for feeding the fertilizer from the hopper 10, a hose 12 for guiding the fertilizer from the feeding case 11, and a fertilizer from the hose 12. It is configured to have a groove generator 13 for feeding under a field scene for five lines, and further, a feeding roll 11a is accommodated in a feeding case 11 while being supported by a swinging shaft 14, and the swinging shaft 14 By connecting the provided arm 15 and the swinging link 7a of the planting arm 7 by a push-pull rod 16, fertilization can be performed in synchronization with the planting operation. Incidentally, three transmission systems for the fertilizing device B are formed so that the fertilizing operation of the non-driven planting system is also stopped when the respective clutches E, E, E are disengaged.

As shown in FIGS. 1 to 6, the medicine spraying apparatus C comprises a hopper 17 for storing a medicine such as a powdery or granular herbicide, a delivery mechanism 18 for delivering the medicine from the hopper 17, and a delivery mechanism. A rotating body 19 that is driven and rotated around a vertical axis so that the medicine dropped and supplied from 18 is scattered in the horizontal direction by its rotational force, and the medicine scattered by the rotating body 19 is diffused to a substantially seedling planting width. And a diffusion guide that is dropped onto the field.

The diffusion guide is an arc-shaped guide member 2 for guiding the medicine scattered by the rotating body 19 toward the rear of the body.
0, the position of the guide member 20 in the guide direction, that is, the rotating body 1
At the rear position of No. 9, the scattered chemical is diffused to approximately the seedling planting width, and 3
It is constituted by a combination with a diffusion member 21 in which three wall bodies 21b, 21b, 21b are appropriately arranged.

As shown in FIGS. 3 and 5, the feeding mechanism 18 has two ratchet mechanisms 23, 2 attached to a support shaft 22 of a disc-shaped member 18b having a large number of through holes 18a.
3. The operation arms 24, 24 are provided, and the planting driving force on both the left and right sides of the seedling planting device A is transmitted to the operation arms 24, 24 via the operation wires 25, 25.

The operating wires 25 are an example of a transmission mechanism. Even if any one of the clutches 6, 6, 6 is disengaged, the operating wires 25, 25 carry out the feeding operation in synchronization with the seedling planting operation. It is configured as follows. Further, the feeding mechanism 18
Is configured as a variable displacement type that sends out a larger amount of medicine as the operation arms 24, 24 are more swung. In this delivery system, the operation wires 25, 25 are used to change the supply amount from the delivery mechanism 18. The adjusting means D shown in FIG.
Is interposed.

Incidentally, the adjusting means D is constituted by providing a tension member adjusting ring 29 on a shift member 28 screwed to an operation shaft 27 which is turned by operating a knob 26.
Of the operation arm 24 by adjusting the slack amount of the inner wire 25a.
It is configured to be able to change the operation stroke of.

As shown in FIGS. 3 and 4, the rotating body 19 is provided with wings 19a, 19a and a DC motor 3a.
When the planting clutch lever 31 is operated to the ON position (ON) so that the DC motor 30 operates before the seedling planting apparatus A operates, the planting clutch is transmitted. At the timing before the lever 31 reaches the ON position (ON) (in the range of (OFF)), the DC motor 3
When the switch 33 between 0 and the power supply 32 is turned ON and the planting clutch lever 31 is operated from the ON position (ON) to the OFF region (OFF), the planting clutch lever 31 is released from the ON region (ON). The operation timing is set so that the switch 33 is turned off after being switched to the range (OFF).

Incidentally, the planting clutch lever 31 is also used for raising / lowering control of the seedling planting apparatus A, and raises the seedling planting apparatus A to the upper limit at the UP position, and moves the seedling planting apparatus A at the N position. The level is maintained, and the seedling planting apparatus A is configured to contact the field at the DOWN position.

[Other Embodiments] In the present invention, in addition to the above embodiment, for example, the feeding mechanism 18 may be formed by forming a concave portion on the outer surface of a roll.
9 may be rotated about a horizontal axis,
The shape of the diffusion member 21 can also be set variously. In the present invention, the rotating body 19 may be driven by power from the body. In the present invention, a rod or a chain can be used for the transmission mechanism 25.

In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

[Brief description of the drawings]

FIG. 1 is a side view of a seedling planting device, a chemical spraying device, and the like.

FIG. 2 is a plan view illustrating an arrangement of a guide member and a diffusion member.

FIG. 3 is a perspective view of a feed-out mechanism and a control system of a rotating body.

FIG. 4 is a longitudinal sectional side view of a feeding mechanism and a rotating body.

FIG. 5 is a sectional view of the adjusting means.

FIG. 6 is a perspective view of a medicine spraying device.

FIG. 7 is an overall side view of the rice transplanter.

[Explanation of symbols]

 2 Riding type traveling machine body 18 Feeding mechanism 19 Rotating body 20, 21 Diffusion guide body 25 Transmission mechanism A Seedling plant C Chemical spraying device E Clutch

Claims (1)

(57) [Claims] 1. A chemical spraying device (C) at a position rearward of a seedling planting device (A) connected to the rear of a riding type traveling machine (2).
In addition, the seedling planting device (A) is configured for a plurality of lines, and at least two transmission systems for the seedling planting device (A) are formed to drive the left and right planting lines. Clutches (E) and (E) for stopping independently are provided,
In addition, the medicine spraying device (C) is provided with a rotating body (1) that scatters the medicine supplied from the feeding mechanism (18) with rotation.
9) and a diffusion guide (20, 2) for diffusing the chemicals scattered by the rotating body (19) to a width approximately corresponding to the seedling planting and sending it to the field scene.
1), and a feeding mechanism (1) driven by power from each of the drive systems of the planting streaks on both the left and right sides of the seedling planting apparatus (A).
8) Two independent transmission mechanisms (25, 2) for driving
5) A riding type rice transplanter comprising: