JPH0884518A - Fertilizing device - Google Patents

Abstract

PURPOSE: To provide a fertilizing device installing plural fertilizing nozzles in plural vertical stages on the leveling float of a working machine to fertilize into the soil, capable of avoiding foreign materials such as straw dusts scattered in the field stagnant at the end part of the fertilizing nozzles or pinched between the vertically located fertilizing nozzles, and keeping the leveling float in a stable state as much as possible even facing the action of the resistance of the soil to the fertilizing nozzles extended to the rear and low direction. CONSTITUTION: This fertilizing device comprises providing a guiding body 46 capable of pressing down foreign materials into the soil in front of a fertilizing nozzle 36 fertilizing the deepest stage and placing the rear end part 46a of the guiding part at a lower position than that of the fertilizing nozzle 35 fertilizing the top stage by penetrating the guiding body 46 deeper successively into the soil in the front to back direction in a lateral view.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fertilizer application apparatus which is mounted on a leveling float of a working machine that slides on a rice field and applies fertilizer to the soil.

[0002]

2. Description of the Related Art Generally, there is a planting work machine such as a rice transplanter that fertilizes fertilizer at the same time as planting seedlings. In order to raise the height, it is known that a leveling float that slides on a rice field is provided with a fertilizing nozzle that extends rearward and downward to apply fertilizer in the soil.

[0003]

SUMMARY OF THE INVENTION However, in the case where the leveling float is provided with the fertilizer application nozzle that extends rearward and downward,
As the fertilizer application nozzle moves in the soil as the machine travels, foreign matter such as straw debris scattered in the field may stay at the beginning of the fertilizer application nozzle, and multiple fertilizer application nozzles are installed. When soil is fertilized vertically in a plurality of stages, the foreign matter may be caught in the upper fertilizer application nozzle, and the foreign matter may be caught between the upper and lower fertilizer application nozzles. For this reason, a wide groove is formed in the traveling path of the fertilizer application nozzle, and the fertilizer applied may not be completely buried and may be washed away. on the other hand,
The fertilizer nozzle that extends backward and downward tries to rotate the ground leveling float in a forward and downward direction due to soil resistance, etc., so groove formation by the ground leveling float occurs in the field and adversely affects the planting performance. There was a risk that the fertilization status would become unstable as well as the above.

The present invention was created in view of the above-mentioned circumstances, and its purpose is to provide a plurality of fertilizer application nozzles extending rearward and downward to apply fertilizer in soil in a plurality of upper and lower stages. Even so, compared to the past, foreign matter such as straw waste will not stay in the fertilizer application nozzle or get caught between the upper and lower fertilizer application nozzles, and soil resistance will act on the fertilizer application nozzle. Another object of the present invention is to provide a fertilizer application device that can keep the leveling float in a stable state as much as possible.

[0005]

In order to solve the above-mentioned problems, the technical means taken by the present invention is a fertilizer applicator mounted on a leveling float of a working machine, wherein the leveling float has a rearward and downward position. A plurality of extending fertilizer application nozzles are provided for soil fertilization in upper and lower stages, and in front of the fertilizer application nozzle that is applied at the bottom stage, a guide body for pressing foreign matter such as straw waste into the soil is provided. It is characterized in that the body is deeply inserted into the soil sequentially from the front to the rear in a side view, and the rear end thereof is located below the fertilization nozzle for fertilizing at the uppermost stage.

[0006]

Therefore, according to the present invention, the plurality of fertilizer application nozzles provided on the ground leveling float and extending rearward and downward apply fertilizer to the soil in a plurality of upper and lower stages as the machine body travels. Then, the guide body provided in front of the fertilizer application nozzle for fertilizing at the bottom stage presses foreign matters such as straw dust scattered in the field into the soil. Since the guide body gradually penetrates deep into the soil from the front to the rear in a side view, the contaminants are gradually pushed to a position deeper than the field scene, and then the fertilizer nozzle at the bottom takes over to further contaminate the soil. Hold down. Moreover, since the rear end of the guide body is located below the fertilizing nozzle that fertilizes at the top,
As compared with the conventional one, foreign matters do not stay at the starting end of the fertilizer application nozzle and are not caught between the upper and lower fertilizer application nozzles. Even if soil resistance or the like acts on the fertilizer application nozzle that extends downward and rearward to rotate the leveling float forward and downward, the guide body provided in front of the fertilizer application nozzle is affected by foreign matter resistance. Then, since the leveling float tends to rotate forward, the forces cancel each other out, and the leveling float is held in a stable state as much as possible.

[0007]

Embodiments of the present invention will now be described in detail with reference to the attached drawings of a rice transplanter. First, in FIGS. 1 and 2, 1
Is a five-row planting rice transplanter, and a planting work machine 3 as a working machine is connected to a rear portion of the traveling machine body 2.
Is equipped with a fertilizer application device 4 for fertilizing soil in the soil at the same time when planting seedlings. In the traveling machine body 2, an engine 8 is mounted on a front portion of a machine body frame 7 having front wheels 5 and rear wheels 6, and a driving operation unit 9 and a driving seat 10 are arranged behind the engine 8.
The planting work machine 3 is movably connected to the rear part of the machine body through a link mechanism 13 including an upper link 11, a lower link 12, and the like. Reference numeral 14 denotes a PTO shaft that transmits power to the planting work machine 2.

On both sides of the engine 8 is a shallow layer fertilizer tank 1
5 and 15 are arranged, and the shallow-layer fertilizer tank 15 is connected via a suction hose 17 to a shallow-layer fertilizer pump 16 arranged substantially at the center of the machine body. 18 is a sub tank. Also, on one side of the driver's seat 10, a fertilizer tank for deep layer 1
9 is arranged, and the deep-layer fertilizer tank 19 is connected to the deep-layer fertilizer pump 20 via a suction hose 21. 22 and 23 are indicators provided above the lower link 12, one inlet side of which is connected to the shallow layer fertilizer pump 16 via hoses 24 and 24, and the other inlet side of the indicator 23 is connected to the hose 2.
It is connected to the deep-layer fertilizer pump 20 via 5, 25 ... Reference numerals 26 and 27 are operating levers for the indicators 22 and 23, and 28 and 29 are fertilizer reflux hoses.

The planting work machine 3 is connected by a seedling mounting table 30 which is erected in a front-back and rear-lowering manner and which reciprocates left and right, and a dry case 31 disposed below the seedling mounting table 30. The planter case 32 is connected to the planter case 32, and the leveling float 33 is attached to the planter case 32. The leveling float 33 slides along with the traveling of the aircraft. A rotary type planting rod 34 attached to the rear end of the case 32 scrapes the seedlings from the seedling mounting table 30 into unit planting stocks and plants them.

As shown in FIG. 3, the leveling float 33 is composed of a center float 33a and left and right side floats 33b, and each leveling float 33 is provided with a plurality of fertilizer application nozzles extending rearward and downward. At the same time when planting seedlings, fertilizer is applied to the soil vertically in multiple layers. In this embodiment, as the plurality of fertilizer application nozzles, a shallow fertilizer application nozzle 35 for fertilizing the uppermost fertilizer and a deep fertilizing nozzle 36 for fertilizing the lowermost fertilizer are provided in upper and lower two stages. That is, the center float 33a shown in FIGS.
In the above, the fertilizing nozzle 35 in the upper stage is supported rotatably up and down via the support shaft 37, and the tip extending downward and rearward is located rearward and downwardly below the pivotal shaft 38 of the center float 33a which is vertically rotatable. It is open. A lower fertilizer application nozzle 36 rotatably supported via a support shaft 39 extends rearward from below the upper fertilizer application nozzle 35. Reference numeral 40 denotes a joint provided at the base end portion of the upper stage fertilizer application nozzle 35, the joint 40 being connected to the indicator 22 via a hose 41, and a joint provided at the base end portion of the lower stage fertilizer application nozzle 36. 42 is connected to the indicator 23 via a hose 43. Reference numeral 44 is a fertilization depth adjusting lever of the upper stage fertilizing nozzle 35, and 45 is a fertilizing depth adjusting lever of the lower stage fertilizing nozzle 36.

In front of the fertilizing nozzle 36 for deep-layer fertilization applied to the lower stage, a guide body 46 for pressing foreign matter such as straw dust into the soil is fixed to the lower surface of the float 33a. The guide body 46 is formed in a slanted shape so as to enter deeply into the soil sequentially from the front to the rear in a side view, and the rear end portion 46a is located below the fertilization nozzle 35 in the upper stage. The depth from the bottom surface of the float 33a is H> h. Further, a wedge-shaped concave portion a is provided in the rear end portion 46a of the guide body 46, and the base end portion 36a of the fertilizer application nozzle 36 in the lower stage is inserted into the concave portion a in a lap shape, and the foreign matters pressed by the guide body 46. Are smoothly taken over by the fertilizer application nozzle 36.

Further, the fertilizer application nozzle 36 is generally formed in a narrow portion whose rear end side is squeezed from the left and right to reduce the resistance of soil, but the guide body 46 has the fertilizer application nozzle 36 of the fertilizer application nozzle 36 as shown in FIG. By making the width A of the guide body 46 narrower than the width B of the narrow portion of the fertilizer application nozzle 36 while extending to the rear of the narrow portion start end, the contaminants pressed by the guide body 46 are narrowed by the narrow portion of the fertilizer application nozzle 36. Can take over and hold down. Furthermore, as shown in FIG. 7, by forming the width A of the guide body 46 to be narrower than the width B ′ of the reinforcing portion 36 b provided on the base end side of the fertilizer application nozzle 36, The reinforcing portion 36b, the fertilizer application nozzle 36, and the width gradually increase toward the rear.

Also for the left and right side floats 33b,
Just like the above, the guide body 46 is fixed in front of the fertilizer application nozzle 36 for fertilizing the lower part. Needless to say, the fertilizer application nozzles may be provided in two or more stages above and below. In short, a guide body is provided in front of the bottommost fertilizer application nozzle, and the rear end portion of the guide body is located below the topmost fertilizer application nozzle. It should be located at.

In the above-described structure, the leveling float 33 slides in the field scene as the machine runs, the planting rods 34 plant seedlings, and the fertilizing nozzles provided on the leveling float 33 extend downward and rearward. Fertilize in the soil from 35 and 36 to the upper and lower two stages. Even if foreign matter such as straw dust is scattered in the field, the guide body 46 that is provided in front of the fertilizer application nozzle 36 that applies fertilizer at the lowermost stage and that deeply enters the soil toward the rear in a side view is the foreign matter. Gradually press down and then guide body 4
The fertilizer application nozzle 36, which has entered the concave portion 6 of 6 in the form of a wrap, smoothly takes over the impurities and presses them further deeper. In addition, the rear end portion 46a of the guide body 46 has the upper end of the fertilizer application nozzle 35.
Since it is located below the fertilizer, contaminants will not flow through the fertilizer nozzle 3.
6, the upper and lower fertilizer nozzles 35,
It is prevented from being caught between 36, and the impurities are left in a state of being buried in the soil.

The width gradually increases from the guide body 46 that has entered the soil to the reinforcing portion 36b, the fertilizer application nozzle 36, and the rearward direction. First, the guide body 46 pushes the soil to the left and right, and then the reinforcing portion 36b. Since the fertilizer application nozzle 36 gradually pushes the soil broadly, the load applied to the fertilizer application nozzle 36 can be distributed to the guide body 46, and the strength of the fertilizer application nozzle 36 can be reduced. Therefore, the fertilizer application nozzle 36 has a thin wall thickness. The fertilizer nozzle 4 can be made narrow.
The groove on the rice field due to No. 6 becomes smaller, and the progress of the fertilizer application nozzle 46 in the soil can be improved. on the other hand,
The soil resistance acts on the fertilizer application nozzle 36, and the leveling float 3
Even if you try to rotate 3 forward and downward, 3
Since the guide body 46 provided in front of 3 tends to rotate the ground leveling float 3 in the forward ascending direction, these forces are offset and the ground leveling float 33 can be held in a stable state as much as possible. .

[0016]

In summary, the present invention is a fertilizer applicator mounted on a leveling float of a working machine, wherein the leveling float is provided with a plurality of fertilizing nozzles extending rearward and downward, and soil is provided in upper and lower stages. In addition to medium fertilization, in front of the fertilizing nozzle that fertilizes at the bottom, a guide body for holding foreign matters such as straw dust into the soil is provided, and the guide body is deepened in order from the front to the rear in the side view. Since the rear end of the fertilizer is located below the fertilizer application nozzle that applies fertilizer to the uppermost stage, multiple fertilizer application nozzles provided on the leveling float apply fertilizer to the soil in upper and lower stages. The guide body provided in front of the fertilizer application nozzle that applies fertilizer in the lower stage gradually presses dirt such as straw waste from the front to the rear deeply into the soil,
Moreover, since the rear end of the guide body presses the contaminants at a position lower than the fertilizer application nozzle that applies fertilizer to the uppermost stage, the contaminants are retained at the base end of the fertilizer application nozzle or between the upper and lower fertilizer application nozzles as compared with the conventional case. You won't be caught in it. Then, even if the fertilizer application nozzle that extends downward and rearward tries to rotate the leveling float forward and downward due to the resistance of the soil, the guide body provided in front of the fertilizer application nozzle uses the resistance when pressing the foreign matter to adjust the soil leveling float. Therefore, it is possible to perform soil fertilization while keeping the leveling float as stable as possible by canceling these forces.

[Brief description of drawings]

FIG. 1 is an overall side view of a riding rice transplanter equipped with a fertilizer application device.

FIG. 2 is a plan view of the same.

FIG. 3 is an overall layout view of a ground leveling float.

FIG. 4 is a side view of the center float.

FIG. 5 is a plan view of the same.

FIG. 6 is an enlarged plan view of part of the above.

FIG. 7 is an enlarged plan view showing the same reinforcing portion.

FIG. 8 is a plan view of a side float.

[Explanation of symbols]

 3 Planting work machine 4 Fertilizer application 33 Leveling float 35 Upper fertilizer application nozzle 36 Lower fertilizer application nozzle 46 Guide body

Claims (1)

[Claims] 1. A fertilizer applicator to be installed in a leveling float of a working machine, wherein the leveling float is provided with a plurality of fertilizer nozzles extending rearward and downward to fertilize soil in a plurality of upper and lower stages and at the bottom stage. In front of the fertilizer application nozzle, a guide body for holding foreign matters such as straw waste into the soil is provided, and the guide body is advanced deeply into the soil from the front to the rear in a side view, and the rear end The fertilizer applying device is characterized in that the part is located below the fertilizing nozzle that applies fertilizer to the uppermost stage.