JPH09285206A - Direct seeding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manufacture a direct seeding machine capable of seeding rice seeds and scattering a fertilizer at the same place in addition to manuring in a side lane and enable to remove a direct seeding machine without removing a transmitting mechanism. SOLUTION: In this direct seeding machine, a manuring device 5 and a direct seeding device 6 each transmitted with a power from a seedling planting device 1, are installed and constituted to be interchangeable from a side-lane working state in which a fertilizer let out from the manuring device 5 is flown into a fertilizer flowing pass 15 and a confluent working state in which the fertilizer from the manuring device 5 is joined to the upper part 23a of a rice seed flowing pass 23. The planting device 1 is connected to be interlocked with the manuring device 5 which is connected to be interlocked with the direct seeding device 6 through a transmitting mechanism B having a contact-interlocking structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a direct seeder for sowing seed rice directly in a field using a fertilizer application device.

[0002]

2. Description of the Related Art If the side-row fertilizer applicator that applies fertilizer to the side of the planting row is directly used for direct sowing, there is a disadvantage that the intervals between the left and right seeding rows cannot be equalized. No. 238118 proposes that a direct seeding device for exclusive use is attached to the rear of the fertilizer applicator so that the seeding can be performed at equal left and right intervals like a rice transplanter.

[0003]

According to the above-mentioned proposed technique, since dedicated devices for fertilization and sowing are separately provided, various operations of seedling planting, sowing, and seedling planting or sowing with fertilization are performed. There is an advantage that can be selected. Generally, if the place where the fertilizer is applied is too close to the seedlings or the rice seeds, it will cause harm,
Even if it was a fast-acting fertilizer, it was applied to a part slightly laterally apart (side-row fertilization), but when sowing with fertilization (depending on the type of fertilizer), the seed paddy and fertilizer are the same place. It has been found that there is a case where excellent effects such as an improved germination rate can be obtained by sprinkling the seeds. An object of the present invention is to realize a direct seeder capable of sprinkling seed rice and fertilizer at the same place.

Further, although the above-mentioned proposed technique can be used as a rice transplanter with a fertilizer application by removing the direct seeding device, it is interlocked with a fertilizer application for power transmission when the direct seeding device is attached or detached. There was the trouble that the mechanism had to be attached and detached. Then, this invention also makes it possible to attach or detach the direct seeding device without attaching or detaching the transmission mechanism.

[0005]

[Means for Solving the Problems]

[Structure] The first aspect of the invention is to install a fertilizer application device and a direct seeding device, to which power is transmitted from the seedling planting device, in the seedling planting device provided at the rear part of the machine body, and to apply the fertilizer fed from the fertilizer application device to the fertilizer. It is characterized in that it is configured to be switchable between a separate work state in which the fertilizer is fed into the fertilizer downflow route and a merge work state in which the fertilizer fed from the fertilizer downflow is fed into the seed paddy downflow route of the direct seeding device.

According to a second aspect of the present invention, in the first aspect, the seedling planting device and the fertilizer applying device are interlockingly connected, and the fertilizer applying device and the direct seeding device are interlockingly connected via a transmission mechanism of a contact interlocking structure. It is characterized by

[0007] A third invention is the first or second invention, wherein:
An upper path supported by the seed padding mechanism, a lower path supported by a groover that can be raised and lowered with respect to the seedling planting device, and a stretchable intermediate path connecting the upper path and the lower path. And a fertilizer fed from the fertilizer application device so as to join the upper route.

A fourth aspect of the invention is characterized in that, in the second aspect of the invention, the direct seeding device is detachably supported on the seedling planting device to which the fertilizer application device is attached.

A fifth invention is characterized in that, in the third invention, the grooving device is attached to the planting case via a four-link mechanism having upper and lower swing arms.

[Operation] In the structure of claim 1, when the fertilizer discharged from the fertilizer application device is introduced into the fertilizer flow-down path as the fertilizer application device, a separate work state is obtained in which the fertilizer is separated from the seed paddy seeded and the fertilizer is spread. Fertilizer that is discharged from the fertilizer application
When the seed paddy flow path of the direct seeding device is merged, the seeded paddy and fertilizer are mixed with each other, and a joining work state is obtained in which the seed paddy and the fertilizer are sown at the same place in the field. In other words, depending on the type of fertilizer and the like, it is possible to select whether to disperse the fertilizer at the same place as the rice seed or at a distance from it.

According to the second aspect of the present invention, the transmission structure of the fertilizer applicator and the direct seeding device is abutting type, that is, there is no member extending over both devices such as the chain and the rod. When attaching / detaching, only one of the devices needs to be attached / detached to / from the other device, and the attaching / detaching operation of the transmission mechanism as in the conventional case is unnecessary.

The structure of claim 3 has the following operation. In order to adjust the seeding depth of the seed paddy and allow it to escape when it collides with other objects, the groover can be raised and lowered and supported by the seedling planting device. A seed pad flow-down path is configured by connecting the upper path supported by the paddy feeding mechanism with an expandable intermediate path such as a bellows tube.
Therefore, if the fertilizer is allowed to join the upper path, which is a fixed member, it is possible to increase the fall distance from the fertilizer so that the fertilizer can be mixed with the seed paddy sufficiently and spread it on the same place as much as possible. Since there is no fertilizer merging route in the lower route, it is possible to prevent the grooving device from moving up and down, so that it does not affect the vertical movement.

According to the structure of claim 4, since the direct seeding device is attached to and detached from the seedling planting device with the fertilizer application, the rice transplanter with or without the fertilizer applicator can be operated by attaching and detaching only the direct seeding device. It is possible to freely select the state as a direct seeding machine with or without fertilizer application.

According to the fifth aspect of the present invention, the vertical swinging arm enables the vertical movement with the grooving device being firmly supported, and the vertical movement of the grooving device causes little change in posture. It also makes it difficult for the fertilization status to change.

[Effect] In the direct seeder according to claim 1,
(A) Utilizing separate equipment for fertilizer application and direct seeding equipment,
Depending on the type of fertilizer and rice seed, the seed and fertilizer can be sprinkled in the same place and the fertilizer can be used separately from the seed rice and sprinkled separately.

In addition to the above effect (a), the direct sowing machine according to the second aspect of the present invention is capable of (a) easily assembling and separating the direct sowing device and the fertilizer applying device.

In addition to the above effect (a) or (a) and (c), the direct sowing machine according to the third aspect of the present invention (d) allows the grooving device to be moved up and down favorably, while confluent. In this way, seed rice and fertilizer were mixed sufficiently to make it difficult for uneven growth to occur.

In addition to the above effects (a) and (c), the direct sowing machine according to claim 4 has an advantage that (e) it is easy to select a seedling planting state and a direct sowing state.

In addition to the above effects (a) and (d) or (a), (c) and (d), the direct sowing machine according to claim 5 can further sow the seeding work by the stable up-and-down movement of the grooving device. There is an advantage that can be done well.

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. A direct seeder using a rice transplanter is shown in FIG. 1, 1 is a seedling planting device, 2 is a rear wheel, 3 is a front wheel, 4 is a body, 5 is a fertilizer application device, and 6 is a direct seeding device. The seedling planting device 1 connected to the machine body 4 through the parallel link mechanism 7 includes a seedling mount 8, a ground float 9, a planting feed case 10,
This is a publicly known one that is provided with a planting case 11, a rotary type seedling planting mechanism 12 and the like.

As shown in FIGS. 2 to 4, the fertilizer application device 5 is
The fertilizer grooving device 1 attached to the fertilizer hopper 13, the fertilizer feeding mechanism 14, the fertilizer flow-down path 15, and the ground float 9.
6 and the merging flow-down path 27 and the like, and is supported by a support frame 17 which is erected on the planting case 11. Power to the fertilizer feeding mechanism 14 is a known structure that is input by a rod 20 pivotally connected to a connecting link 19 connecting the pair of planting arms 18, 18.

The direct seeding device 6 comprises a seed hopper 21, a seed pad feeding mechanism 22, a seed pad flow-down path 23, and a planting case 11.
Is supported by a seeding frame 26 supported by a bracket 25 attached to the rear end of the planting case 11. The seed paddy flow-down path 23 is an upper tube 23a that is an upper path supported by the seed paddy feeding mechanism 22, a lower tube 23b that is a lower path on the seed grooving device 24 side, and the upper tube 23a and the lower tube 23b.
It is configured by connecting with a bellows tube 23c which is an expandable and contractible intermediate path connecting with a road. The upper cylinder 23a is formed in a bifurcated shape, and the end of the merging flow-down path 27 is inserted therein.

As shown in FIG. 6, the separate operation state in which the fertilizer fed from the fertilizer feeding mechanism 14 of the fertilizer application device 5 flows into the fertilizer downflow route 15 and the seed paddy of the direct seeding device 6 via the confluent downflow route 27. A path switching mechanism A capable of switching to a merging work state in which the merging path 23 is merged is provided. That is, the separation case 28 that continues below the fertilizer feeding mechanism 14
The fertilizer flow-down path 15 is connected to the front side of the lower part of the above, and the merging flow-down path 27 is connected to the rear side thereof, and a switching arm 29 swingable at a fulcrum P is pivotally supported between the front and rear of these both paths. A route switching mechanism A is configured.

That is, when the switching arm 29 is swung backward until it comes into contact with the rear vertical wall of the separation case 28, the fertilizer flows into the fertilizer flow-down path 15, and the fertilizer is supplied to a portion laterally adjacent to the seed paddy supply location. In addition, a separate work state (side row fertilization work state) in which the fertilizer and the seed paddy are independently sown on the field appears (see FIG. 5). Then, when the switching arm 29 is swung forward until it contacts the front vertical wall of the separation case 28, the fertilizer merges with the upper cylinder 23a through the merging flow-down path 27,
A seeding pad and a fertilizer are sprinkled on the same place from the seed padd flow path 23, and a combined working state appears (see FIG. 5). The supply point of seed paddy to the field is matched with the planting line by the seedling planting mechanism 12, and as shown by the one-dot broken line in FIG. 5, the pair of fertilizer groovers 16 and 16 are a pair of seed paddy groats. Bowl 24,2
It is slightly offset inside 4.

Further, the direct seeding device 6 receives a driving force from the fertilizer applying device 5 through a transmission mechanism B having a contact interlocking structure. That is, as shown in FIGS. 8 and 9, via the drive rotating body 30 attached to the drive shaft 14a of the fertilizer feeding mechanism 14, the L-shaped crank 31 pivotally attached to the seeding frame 26, and the one-way clutch 32. Drive shaft 2 of seed paddle feeding mechanism 22
2a and the driven arm 33 fitted externally to the L-shaped crank 31
And an interlocking rod 34 that interlocks the driven arm 33 with
The transmission mechanism B is composed of a winding spring 35 that urges the L-shaped crank 31 to return. Reference numeral 46 denotes a stopper made of ring rubber, which can determine the returning position of the L-shaped crank 31 and adjust the amount of feeding by changing the position by operating a bolt.

The drive rotor 30 has two protruding pins 30a in the left-right direction, which are laterally opposite to each other, mounted on three semi-circular plates 30b, and is bolted to each other with the drive shaft 14a having a hexagonal cross section sandwiched therebetween. The protrusion pin 30a intermittently lowers the L-shaped crank 31 by the rotation of the drive rotor 30. That is, the pair of L-shaped cranks 31, 31
The seed paddy drive shaft 22a is intermittently driven four times by one rotation of the fertilizer application drive shaft 14a by alternately kicking the fertilizer application shaft 14a.

Therefore, the L-shaped crank 31 by kicking down
The reciprocating movement due to the movement and the return movement of the one-way clutch 32 drives the seed paddy drive shaft 22a intermittently in a fixed direction (the direction of the arrow indicated by the broken line), and the seed paddy is seeded in the field at regular intervals as the machine progresses. It will be done. Due to the abutment interlocking structure, there is no member extending over the fertilizer applicator 5 and the direct seeding device 6 in the transmission mechanism B, so there is no need to attach or detach an interlocking member such as a rod as in the conventional case.
The direct seeding device 6 can be easily attached and detached.

As shown in FIGS. 10 to 12, the seed grooving device 24 is supported by the planting case 11 via the four-link mechanism C. That is, in the quadruple link mechanism C, the front vertical member 36 in the frontward U-shape in plan view on the side of the planting case 11 and the rear vertical member 37 on the side of the seed grooving device 24 are connected to the upper and lower swing arms 3.
The front vertical member 36 is configured by connecting with 8 and 39.
Is attached to the bracket 25 so that it can be attached and detached manually without using a tool. A downward recessed portion 25a is formed in the upper part of the rear end of the bracket 25, and an obliquely forward downward recessed part 25b is formed in the lower part thereof. Further, the receiving member 40a of the buckle 40 is fixed in the vertical middle and A hook 40b of the buckle 40 is attached to the member 36.

Therefore, first, the upper front shaft 41 is inserted into the downward recessed portion 2
5a, and then the lower front shaft 42 is inserted into the oblique front downward recessed portion 25b, and then the buckle 40 is operated to bring it into the locked state, whereby the seeding grooving device 24 is attached to the bracket 2
Can be attached to 5. When removing the buckle 40, the front vertical member 36 may be removed from the two recessed portions 25a and 25b. Reference numeral 43 denotes a lower limit adjusting bolt for contacting with the rearward extension of the upper arm 38, which adjusts and sets the lowering limit of the seeding grooving device 24 that descends by its own weight.

The seeding frame 26 is made of a pipe material, and is fitted to the support rod 44 which is vertically erected from the bracket 25 to the seedling planting device 1, that is, the fertilizer applying device 5. It is to be put on and taken off. Therefore, the direct-flow seeding device 6 is planted by removing the merging flow-down path 27 from the separation case 28, removing the four-link mechanism C from the bracket 25, and loosening the knob bolt 45 to pull out the seeding frame 26 from the support rod 44. It can be removed from the attachment device 1. When mounting it, the reverse operation may be performed.

[Brief description of drawings]

Fig. 1 Side view of rice transplanter

[Figure 2] Side view of the seedling planting device

FIG. 3 is a rear view of the fertilizer application part.

FIG. 4 is a rear view of the direct seeding device portion.

FIG. 5 is a plan view showing the relative positions of the seedling planting site and the fertilizer application / sowing site.

FIG. 6 is a side view showing the structure of the path switching mechanism.

FIG. 7 is a side view showing a seed pad feeding mechanism.

FIG. 8 is a side view showing a transmission structure of a fertilizer application device and a direct seeding device.

FIG. 9 is a plan view showing a transmission structure of a fertilizer application device and a direct seeding device.

FIG. 10 is a side view showing a support structure for a seed-grooving groover.

FIG. 11 is a side view showing a bracket for supporting the direct seeding device.

FIG. 12 is a plan view showing the four-link mechanism in a mounted state.

[Explanation of symbols]

 1 Seedling planting device 4 Airframe 5 Fertilizer application device 6 Direct seeding device 11 Planting case 15 Fertilizer flow-down route 22 Seed-paddy feeding mechanism 23 Seed-paddy flow-down route 23a Upper route 23b Lower-route 23c Intermediate route 24 Grooving device 38 Upper swing arm 39 Down-swing Moving arm C Quad link mechanism

Claims (5)

[Claims] 1. A fertilizer application device and a direct seeding device, to which power is transmitted from the seedling planting device, are respectively provided in the seedling planting device provided at the rear part of the machine body, and the fertilizer fed from the fertilizer applicator is supplied to the fertilizer application device. Each work state to flow into the fertilizer flow path of
A direct sowing machine configured to be switchable to a merging working state in which the fertilizer fed out from the fertilizer application is merged with the seed pad flow path of the direct sowing device. 2. The seedling planting device and the fertilizer application device are interlockingly connected, and the fertilizer application device and the direct seeding device are interlockingly connected via a transmission mechanism having a contact interlocking structure. Direct seeder described. 3. An upper path supported by a seed pad feeding mechanism, a lower path supported by a groover capable of moving up and down with respect to the seedling planting device, and the upper path and the lower path. The direct seeding machine according to claim 1 or 2, wherein the fertilizer fed from the fertilizer applicator merges with the upper path while being configured with an expandable and contractible intermediate path connecting to the. 4. The direct seeding device according to claim 2, wherein the direct seeding device is detachably supported on the seedling planting device in a state where the fertilizer application device is attached. 5. The direct seeding machine according to claim 3, wherein the grooving device is attached to the planting case via a four-link mechanism having upper and lower swing arms.