JPH088582Y2 - Fertilizer application for paddy work machine - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention is applied to the soil through the fertilizing nozzle at the same time as the planting / seeding operation in the paddy working machine such as the rice transplanter and the seeder (direct seeder in flooded soil). The present invention relates to a fertilizer application device for a paddy working machine adapted to apply liquid fertilizer such as paste fertilizer.

<Prior art> As a fertilizer applicator for paddy working machines, conventional side-row fertilizer nozzles have been attached to working parts such as planting and sowing parts, and shallow-layer fertilizer nozzles and deep-layer fertilizer nozzles have been vertically moved. The one that is installed in two steps so that fertilizer is applied to the soil at the same time as planting and sowing work (side row fertilizer application) is, for example, Jitsuko Sho 53-
It is already known and used as described in Japanese Patent No. 21544.

<Problems to be solved by the invention> However, since the conventional fertilizer application nozzle of this kind is used for injecting fertilizer into the soil between planting rows, the fertilizer application nozzle is arranged below the planting area and is used for sliding down a rice field. Most of the structures are supported on the float, and moreover, the fertilizer application nozzle is fixed to the float integrally or is supported so that it can be vertically rotated within a certain range with respect to the float. Since it is directly affected, there are various inconveniences. In other words, the fertilizer application nozzle protrudes below the float, and since it advances in the state of being thrown into the mud during the work, it does not pass through the shallow part of the cultivator or the nozzle part hits an obstacle. If the nozzle is pushed upwards, the float will lean forward to repel large amounts of mud in the vicinity.In the case of rice transplanters, the mud pushing action will not only adversely affect the seedlings in the vicinity, but will also pass the float. There is a drawback that a step is formed between the planting part and the planting part, the mud in the planting part becomes unstable, and the planting posture is easily disturbed.
In addition, in the case where the fertilizer application nozzle is attached to the float that has a detection function for adjusting the planting part up and down, the float sensor function that uses the change in the ground pressure to detect the tilt of the float due to the pushing up of the nozzle and cause a malfunction There was also a problem such as damage.

<Means for solving the problem> Therefore, the present invention is a paddy field work in which a fertilizer is provided on the float of a working part such as a planting part or a sowing part, and fertilizer is applied to the soil at the same time as planting or sowing. In the machine, the fertilizer body is composed of a shallow fertilizer body whose fertilizer outlet is opened at an upper shallow layer position on the lateral side of the float in the soil, and a deep fertilizer body opened at a deep layer position below the bottom surface of the float. The fertilizer application is provided so as to be vertically rotatable and the float is penetrated in the vertical direction, and the shallow layer fertilizer application is provided along the lateral side of the float to solve the above problems.

<Action> For the float that slides on the rice field, the deep-layer fertilizer is opened and applied in the deep part of the soil, and the shallow-layer fertilizer is opened and applied in the shallow part. Since the deep fertilizer is inserted deep into the soil through the float, it often disturbs the rice field by catching grass and soil, forming grooves, etc. Work is done.

<Embodiment> A riding rice transplanter is shown in the drawings, which includes a traveling part A, which is partially omitted, and a planting part B which is mounted rearward of the traveling part A via a hydraulic mechanism so as to be able to move up and down.

A fertilizer tank 1 containing paste-like fertilizer is mounted on the front part of the traveling part A, and the tank 1, the fertilizer pump 2, the switching valve 3, the indicator 4 and the like are pipes (hoses).
5 are communicated with each other.

Reference numeral 6 denotes a central float provided below the center of the planting portion B, and side floats 7 are arranged on both left and right sides thereof, and between the central float 6 and the side floats 7 and on the outer side of the side floats 7. A four-row planting section B is formed by the four planting rods 8 and the seedling table 9 which are positioned and arranged in parallel at equal intervals.

Although not shown, the central float 6 has a function of detecting the upper and lower parts of the planting part B. By detecting a change in the ground pressure of the central float 6 and controlling the hydraulic valve, the planting part B is moved up and down. The planting depth is adjusted to keep the planting depth constant. Further, each of the floats 6 and 7 is provided with a shallow-layer fertilizing nozzle (hereinafter also referred to as shallow-layer nozzle) 10 for fertilizing at a shallow-layer position in the soil adjacent to the planting strip. That is, a total of four shallow layer nozzles, one near the left and right edges of the central float 6 and one near the outer edges of the side float 7.
10 are arranged in a gentle downward slope toward the rear. Further, a deep-layer fertilizing nozzle (hereinafter also referred to as a deep-layer nozzle) 11 that penetrates the substantially central portion of the side float 7 and applies fertilizer to a deep-layer position is provided at a steeper slope than the deep-layer nozzle 10, and each of the nozzles 10 and 11 is The free end side is the fertilizer discharge ports 10a and 11a. 10b, 11b, 11'b are nozzle reinforcing members, respectively. The fertilizer application position (depth) is set so that the shallow nozzle 10 is 3 to 5 cm from the rice field and the deep nozzle 11 is 8 to 15 cm.

Reference numeral 12 is a mounting seat fixed to the upper surface of the side float 7, and a support member 14 and pivot pins 15 and 16 are provided between the mounting seat 12 and the fixed side of the planting part B (drive case 13 in the illustrated example). The float 7 is supported so as to be vertically swingable around a pivot pin 15. By the way, the deep nozzle 11 is provided so as to vertically pass through it through an elongated hole 7a and a float recess 7b provided in the float 7, and an arm 17 and a positioning spacer 18 are respectively directed to the upper part of the nozzle 11 toward the rear. The protruding end side of the arm 17 is pivotally connected to the pivot pin 15 so as to be vertically rotatable, and the free end side of the spacer 18 is adjusted to the supporting member 14 so as to project downward. Stopper bolts for fertilizer positioning that can be installed
Abutted on 19. Therefore, the deep-layer nozzle 11 is rotatable up and down about the pivot pin 15, which is the swinging fulcrum of the side float 7, and the range of rotation is the stopper bolt 19.
Is regulated within a predetermined range by the edge of the elongated hole 7a having the downward protruding length. S is a tension bullet, and the bullet S urges the deep nozzle 11 in a direction in which the spacer 18 contacts the stopper bolt 19.

By making the rotation fulcrum of the deep nozzle 11 coincide with the swing fulcrum of the float 7, the parts can be simplified and the operation can be performed smoothly.

On the other hand, the shallow nozzle 10 is attached to the mounting seat 12 by the bracket 20.
The height of the nozzle can be adjusted by the fertilization depth adjuster a. Reference numeral 21 is a discharge hose, and 22 is a deep-layer discharge hose, which are connected to the indicator 4 via the switching valve 3, respectively.

In the above-mentioned embodiment, the fertilizer application device for the rice transplanter that applies fertilizer to the upper and lower stages of the shallow layer and the deep layer has been described in which only the deep layer nozzle 11 is supported by the float support member 14. Can also be supported by the support member 14, especially in a normal side-row fertilizer application (only for shallow layer nozzles), since the support member 14 supports the float, the float is not affected by the fertilizer application nozzle. It is convenient. When fertilizing is performed, the fertilizing pump 2 is driven, but the fertilizing pump 2 is automatically linked with an on / off operation of the planting clutch by connecting the fertilizing pump 2 to an unillustrated planting clutch. It may be configured to be driven and stopped automatically.

5 and 6 exemplify a structure in which the deep-layer nozzle 11 'is automatically switched between the projecting state and the stored state in conjunction with the vertical movement of the planting portion B. That is, in this product, the deep nozzle 11 'is mounted on the float mounting seat 12 by the bracket.
It is supported by a hollow pipe 24 fixed via 23 so as to be vertically rotatable, and when the planting part B is raised, the arm 25 integrated with the nozzle 11 ′ is pulled by a pulling ammunition machine 26, so that the nozzle 1
1'rotates upward around the rotation fulcrum 27 and discharges 1
1'a is abutted and closed on the bottom surface 7c of the float 7 so as to increase the height above ground and prevent fertilizer drooling during traveling. Also. The nozzle 11 'is linked to the planting lever 29 on the machine side via the wire 28. The planting lever 29 is turned on and off.
The planting part B moves up and down (it goes down when it is turned on and goes up when it is turned off) in conjunction with the operation, and the nozzle 11 'is stored by utilizing the sagging of the wire 28 when the planting part B goes up. It is configured to automatically rotate and displace (see FIG. 6). The mounting structure of the shallow layer nozzle 10 'is the same as above. In the figure, 30 is a main frame of the planting part, 31 is a fertilization depth adjuster for deep layer nozzles, 32 is a notched long hole for nozzle penetration, 33 and 33a are nozzle reinforcing members, and 34 is a depth nozzle depth adjusting device. , 35 are pivots of the deep nozzle 11 '. The present invention can be installed not only on a paddy rice transplanter, but also on a paddy working machine such as a walk-type rice transplanter or a direct seeder for flooded soil.

In the above configuration, when performing a planting (fertilization) operation, the fertilization positions of the deep layer nozzle 11 and the shallow layer nozzle 10 are set to appropriate depths in advance. When the planting clutch is turned on to move the machine forward and the fertilizer pump 2 is started to start the work, the paste fertilizer in the fertilizer tank 1 is passed through the hose 5, the switching valve 3 and the indicator 4, etc. After being fed to the rear, one is the discharge port 10a of the shallow layer nozzle 10.
Is applied to the shallow layer position adjacent to each planting strip, and the other is applied to the deep layer position between the planting strips from the discharge port 11a of the deep nozzle 11 (every other space is fertilized).

As a result, shallow fertilization as a base fertilizer and deep fertilization as a top fertilizer are performed at an appropriate ratio and density in relation to the planting strip, which improves the survival and growth in the early stages of growth and also has an additional fertilization effect as a top fertilizer in the middle stage of growth. To be enhanced.

By the way, since the deep-layer nozzle 11 has a deeper immersion depth than the shallow-layer nozzle 10, the nozzle 11 is pushed upward when passing through a shallow place of the cultivator or hitting an obstacle or the like. The pushing load is received by the drive case 13 of the planting portion B via the spacer 18, the stopper bolt 19 and the support member 14, and is not applied to the float 7. For this reason, the inconvenience that the float 7 is affected by the deep nozzle 11 and becomes slanted toward the front and disturbs the planting posture, and the float 7 always exhibits its proper functions such as proper leveling. Can be made.

Further, during the work, the weight of the planting portion B is applied to the deep layer nozzle 11 via the support member 14, the stopper bolt 19 and the spacer 18, and acts to press the deep layer nozzle 11 from above, so that the nozzle 11 suddenly floats. Therefore, it is advantageous that the fertilization depth is kept constant if only the nozzle strength is secured.

<Effect of the device> While the shallow layer fertilizer on the side of the float, which has a small push-up resistance in the soil, is inserted at the shallow layer position in the soil on the side of the float, the soil due to the pushing load applied to the fertilizer is applied. Since the deep fertilizer application with high resistance inside penetrates the float and is inserted in the deep position in the soil, fertilization work is performed,
Even if the fertilizer is in contact with an obstacle in the soil or shocked, it will be uniformly received by the entire float, and extreme tilting of the float will be prevented, allowing the float to slide smoothly while maintaining balance as a whole. Therefore, planting and sowing work can be performed stably.

Further, the mud lifting due to the deep fertilizer, the catching of grass and the like, and the disturbance of the rice field due to the formation of grooves have the advantage that the float penetrating the fertilizer can be used to smooth and backfill the soil well.

Further, since the fertilizer application can be rotated up and down, the fertilizer application depth can be adjusted, and the fertilizer application body can be adjusted according to the depth of the cultivator.

[Brief description of drawings]

FIG. 1 is a side view of a main part, FIG. 2 is a plan view of the same as above, FIG. 3 is an overall plan view of a fertilizer application device, and FIG.
5 and 6 show a structure in which the deep nozzle is automatically switched between the projecting state and the storing state in conjunction with the vertical movement of the planting section, and FIG. 5 is a plan view of the fertilizing nozzle support section. Figure,
FIG. 6 is a side view of the above. 6: Central float, 7: Side float 10: Shallow fertilizer nozzle, 11: Deep fertilizer nozzle 14: Float support member, 13: Drive case of planting part B is planting part

Claims (1)

[Scope of utility model registration request] 1. In a paddy working machine in which a fertilizer is provided on a float of a working part such as a planting part and a sowing part, and the fertilizer is applied to the soil at the same time as planting, sowing, etc. Is composed of a shallow fertilizer body that opens at an upper shallow layer position on the side of the float in the soil, and a deep fertilizer body that opens at a deep layer position below the bottom surface of the float. A fertilizer applicator for a paddy working machine, wherein a float is provided so as to pass through in the vertical direction, and a shallow fertilizer body is provided along a side of the float.