JP2002272208A - Seeding machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To sow seeds into furrows while tilling soil and covering soil onto the right and left ridges. SOLUTION: This seeding machine is obtained by installing a furrow opener 6 for forming a sowing groove A, a pair of right and left rotating tillage tines 7 and 7 for tilling a field B immediately before the furrow opener 6 and sweeping soil up to both outsides while feeding the tilled soil to the front side of the furrow opener 6, a tail wheel 9 for adjusting a furrow-opening depth of the furrow opener 6 and tilling depth of the pair or rotating tillage tines 7 and 7 and a sowing mechanism 18 driven by rotating force of the tail wheel 9 and constituted so as to drop seeds C into the sowing groove A behind the furrow opener 6 on a machine body 2 which travels the field B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sowing machine, and more particularly to a sowing machine that can sow seeds at regular intervals by using a tail wheel.

[0002]

2. Description of the Related Art Generally, when seeds are sown in a field, a manual or dedicated sowing machine is used. Some of such seeds and sowing machines are provided with a grooving device for forming a sowing groove on a tractor and a seed feeding device for dropping seeds into the sowing groove. In addition, in order to cover the seeds sown in the sowing groove, some tractors are provided with a soil covering device that collapses the sowing groove. There is also known a soil covering device configured to lift the cultivated soil to the left and right while tilling the furrow with a rotary tilling claw, and cover the seeds planted on the ridge with the lifted soil.

[0003]

SUMMARY OF THE INVENTION A pair of rotary tilling claws are attached to a tractor, and seeds replanted in ridges are provided.
For example, if konjac potatoes are covered with soil, the efficiency of the soil covering work can be improved, but when sowing in the furrows for efficient use of furrows, etc., it is necessary to cover the vast fields again. Must travel the same distance as. The present invention has been made in view of the above circumstances, and an object of the present invention is to form a sowing groove so that soil can be covered on both sides of the sowing groove while seeds are sown.

[0004]

According to the first aspect of the present invention,
On a machine running in a field, a groove cutter for forming a seeding groove,
A pair of left and right rotary tilling claws that plow the field in front of the grooving device and whip both sides while sending the plowed soil to the front side of the grooving device, the grooving depth of the grooving device and the pair And a seeding mechanism provided with a tail wheel that adjusts the tillage depth of the rotary tilling claw, and a seeding mechanism that is driven by the rotating force of the tail wheel and drops seeds into the seeding groove behind the groove cutter. Things.

According to a second aspect of the present invention, in the first aspect of the present invention, the sowing mechanism is configured to receive a seed, the roll being integrally rotated with the tail wheel, and being recessed on an outer peripheral surface of the roll. A hollow, a cylindrical housing rotatably accommodating the roll with a small gap between the surface of the roll, and a seed inlet opening at the outer periphery of the housing and supplying seed to the hollow. The present invention also provides a seed dispenser including a seed discharge opening that is opened at the outer peripheral portion of the housing and drops seeds from the depression and sowed, and a seed storage unit that supplies seeds to the seed introduction opening.

According to the first aspect of the present invention, when the body is driven while driving a pair of rotary tilling claws, a seeding groove having a predetermined width and a predetermined depth is formed on a field by the pair of rotary tilling claws and a groove cutter. While seeds are being formed, seeds are sown at regular intervals in the sowing groove, and soil is covered with tilled soil on both sides of the sowing groove. For this reason, while sowing the seeds in the furrows, it is possible to perform the work of covering the seeds replanted in both furrows at once, and the efficiency of the agricultural work can be improved.

According to the second aspect of the present invention, the roll rotates integrally with the tail wheel. When the roll rotation angle advances and the roll recess matches the seed inlet of the housing, the seed waiting at the seed inlet is received by the recess, and the rotation angle further advances and the recess matches the seed outlet. Then, the seed falls from the seed outlet into the sowing groove. Since the seed sowing interval is constant regardless of the running speed of the machine, accurate and efficient sowing is possible.

[0008]

An embodiment of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a side view showing the overall configuration of the seeder. As shown, the body 2 of the seeder 1
An engine 3 and a drive wheel 4 as a drive source are attached to the front of the vehicle. A grooving device 6 is attached to the rear part of the body 2 and extends downward in the direction of gravity.
A pair of left and right rotary tilling claws 7, 7 for tilling is pivotally supported in front of. The pair of rotary tilling claws 7, 7 are fixed to both ends of a driven shaft 8 supported by the body 2 at an interval from each other, and are rotated by the rotation of the driven shaft 8.
Further, a tail wheel 9 for adjusting the groove cutting depth and the tilling depth of the seeding groove A is attached to the rear of the groove cutter 6 so as to be able to move up and down. The tips of the rotary tilling claws 7, 7 are bent into a substantially L-shape to cultivate the field B by a predetermined width, and the grooving soil is sent out to the front side of the grooving device 6 while the cultivation soil is sent out.
It is twisted appropriately to lift the tilling soil outward from the front of the tilling.

A drive shaft 10 for driving the drive wheels 4
Is the sprocket 1 on the PTO shaft (not shown) of the engine 3.
1 and a chain 12, and the driven shaft 8 is connected to another sprocket 14 and the chain 1.
5 is connected to the PTO shaft via a driving device 16. After adjusting the height of the tail wheel 9, stand (not shown)
Is returned to the field B, and the grooving device 6, the rotary tilling claws 7, 7 and the tail wheel 9 are lowered. In this state, while holding the handle 17 extending rearward from the rear portion of the body 2, the hand lever or the hand button (FIG. When the engine 3 is driven by a motor (not shown), the driven shaft 8 is rotated, and the pair of rotary tilling claws 7 is rotated. The body 2 is moved forward by the forward rotation of the drive wheel 4. At this time, the pair of rotary tilling claws 7, 7 are pulled by the body 2 to lift the cultivated soil to both sides while cultivating the field B, and cover the soil. To guide the tilling soil to the left and right. As a result, a seeding groove A having a substantially V or U-shaped cross section is formed in the field B.

Next, the structure of the seeding mechanism 18 for seeding the seed C in the seeding groove A using the rotational force of the tail wheel 9 as a driving force will be described with reference to FIGS. As shown, the tail wheel 9 is provided with a bifurcated frame 20 at the lower end of a lifting rod 19.
The lifting rod 19 is rotatably supported via a cylindrical guide portion 21 attached to the rear of the body 2. A lock screw 22 is screwed into the guide portion 21 so as to be able to advance and retreat. The lifting rod 19 is fixed to the guide portion 21 by the pressing force of the lock screw 22. On one side of the bifurcated frame 20, a cylindrical housing 23 that fits loosely with the flange 9a of the tail wheel 9 is fixed. As shown in detail in FIG. 2, a roll 24 for sowing the seed C is rotatably accommodated in the housing 23. One end of the roll 24 is the housing 23
The other end of the roll 24 is coaxially and integrally fixed to the flange 9a of the tail wheel 9, and is rotatably supported by one of the bifurcated frames 20 through the side wall 23a. It rotates integrally with the tail wheel 9 while being restricted from moving in the direction. A depression 24a for receiving the seed C is formed on the outer peripheral surface of the roll 24, and a seed inlet 23a for supplying the seed to the depression 24a is formed on the peripheral wall of the housing 23.
And a seed discharge port 23b for discharging the seed C from the depression 24a and dropping the seed C into the sowing groove A is opened. In the body 2, a seed storage container 26 as a seed storage unit is supported via a bracket (not shown) by a handle 17 extending further rearward from the rear part, and seed supply at the bottom of the seed storage container 26 is performed. The port 26a and the housing 23
And a seed supply port 27a.

In the seed supply pipe 27, a transparent pipe such as vinyl chloride, for example, is used to visually check the supply state of the seed C from outside.
Alternatively, a nylon tube is used. The seed C that has dropped downward from the seed supply port 26a of the seed storage container 26 through the seed supply pipe 27 is transferred to the seed introduction port 23a of the housing 23.
From the inside of the housing 23, but the interval between the inner surface of the peripheral wall of the housing 23 and the outer peripheral surface of the roll 24 is set so small that the inner surface of the peripheral wall becomes a cut surface of the seed C, so that the seed introduction port 23a At the rotation angle of the roll 24 where the depressions 24a do not coincide with each other, the seed C cannot enter the depressions 24a. When the rotation angle of the roll 24 advances and the depression 24a coincides with the seed introduction port 23a, the seed C is received in the depression 24a for the first time. When the rotation angle of the roll 24 advances and the depression 24a coincides with the seed discharge port 23b of the housing 23, the seed C received in the depression 24a falls downward from the depression 24a by its own weight, and the housing 2
3 falls outside through the seed outlet 23b.

As described above, the housing 23 is disposed between the frame 20 and the tail wheel 9, and the seed discharge port 23b of the housing 23 passes above the sowing groove A. A is intermittently seeded. Since the roll 24 rotates integrally with the tail wheel 9, and the tail wheel 9 rotates while touching the seeding groove A, the seeding interval of the seeds C is constant even when the running speed of the body 2 changes.

When a plurality of depressions 24a are formed on the outer peripheral surface of the roll 24 at intervals in the circumferential direction, the sowing interval of the seeds C becomes shorter, and when the diameter of the roll 24 is made larger, the sowing interval of the seeds C becomes longer. Also, the depth of the depression 24a or the depression 24a
When the opening area of the roll 24 is increased, the number of seeds C sowed at one place increases,
Are formed in multiple rows, the number of seeds C sown in one place increases. The seed C is covered by the natural collapse of the sowing groove A, but is covered by extending the arm from the rear part of the body 2 to the rear of the tail wheel 9 and forcibly collapsing the sowing groove A at the extension end thereof. If a plate (not shown) is provided, the earth covering can be secured.

Next, an example of a farming operation using the seeder 1 will be described with reference to FIGS. Konjac potato A1 is replanted once a year and shipped three years later. In order to improve the growth of the konjac potato A1, it is preferable to cover the surfaces of the ridges B1, B1,... With dead plants to prevent the growth of weeds. For this reason, it is required that seeds are sown between the ridges B1 and B1 simultaneously with the replanting of the konjac potato A1 and the surfaces of the ridges B1, B1,.

Therefore, the seed storage container 26 of the seeding machine 1
The wheat C1 is stored, and the soil between the ridges B1 and B1 is lifted to form the sowing groove A between the ridges B1 and B1 while covering the konjac potato A1, and the wheat C1 is sown. Wheat C1 is higher in height than other plants, has a large area covering the surface of ridge B1 when it withers, and withers when the temperature exceeds a certain temperature. Ideal for prevention.

First, the locking screw 2 of the seeder 1
2, the height of the tail wheel 9 is adjusted, and the tail wheel 9 is fixed by fastening the locking screw 22. After this, the front part of the body 2 of the seeding machine 1 is faced between the adjacent ridges B1 and B1,
The engine 3 is started in this state. As described above, when the fuselage 2 moves forward and the pair of rotary tilling claws 7, 7 is rotated, the pair of rotary tilling claws 7, 7 and the groove cutter 6 cooperate to form a gap between the adjacent ridges B 1, B 1. Since the soil is lifted to both sides, the konjac potatoes A1, A1,... Replanted in the adjacent ridges B1, B1 become cultivated ridges B1, B.
Covered by one soil.

When the fuselage 2 is advanced with the soil covering, the fuselage 2
The tail wheel 9 that is rolled on the seeding groove A by being pulled is also rotated, and the roll 24 rotates integrally with the tail wheel 9. Roll 24
Is rotated, and when the depression 24a of the roll 24 matches the seed discharge port 23b of the housing 23, the wheat C1 falls from the seed discharge port 23b and falls into the sowing groove A.

Since the depression 24a intermittently coincides with the seed discharge port 23b by the rotation of the roll 24, the wheat C1 is sown at regular intervals in the sowing groove A regardless of the running speed of the machine body 2. Therefore, when the temperature becomes equal to or higher than the predetermined temperature and the wheat C1 withers, the surface of the ridge B1 is covered with the withered wheat C1, and the growth of weeds is prevented.

[0019]

As apparent from the above description, according to the present invention, the following excellent effects are exhibited. (1) The airframe is run while driving a pair of rotary tilling claws, and while a seeding groove having a predetermined width and a predetermined depth is formed in a field by a pair of rotary tilling claws and a groove cutter, a constant interval is provided between the seeding grooves. At the same time as seeds are sown, soil was covered with cultivated soil on both sides of the sowing groove.For example, while sowing seeds between furrows, work to cover the seeds replanted on both furrows at once was performed. This makes it possible to increase the efficiency of agricultural work (claim 1).

(2) Since the sowing interval of the seeds is configured to be constant irrespective of the traveling speed of the machine body, accurate and efficient sowing is possible (claim 2).

[Brief description of the drawings]

FIG. 1 is a side view showing an overall configuration of a seeder according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a structure of a model mechanism of a seeding machine according to one embodiment of the present invention.

FIG. 3 is an explanatory diagram showing an example of a sowing operation using a sowing machine according to an embodiment of the present invention.

[Explanation of symbols]

 2 Body 6 Grooving cutter 7, 7 Rotating tiller 9 Tail wheel 18 Seeding mechanism 23 Housing 23a Seed inlet 23b Seed outlet 24 Roll 24a Depression 26 Seed storage container 26a Seed supply port 27 Seed supply pipe B Field C Seed C1 wheat

Claims (2)

[Claims] Claims 1. An airframe running in a field, a grooving device for forming a seeding groove, and a soil tilling field immediately before the grooving device, and the cultivated soil being sent to the front side of the grooving device while being fed to both sides. A pair of left and right rotary tilling nails to be lifted, a tail wheel for adjusting the grooving depth of the groove cutter and the cultivation depth of the pair of rotary tilling claws, and the groove cutter driven by the rotating force of the tail wheel And a sowing mechanism for dropping seeds into the sowing groove behind the sowing machine. 2. The method according to claim 1, wherein the seeding mechanism is provided with a small gap between a roll that rotates integrally with the tail wheel, a recess that is recessed in an outer peripheral surface of the roll and receives seeds, and a surface of the roll. A cylindrical housing that rotatably accommodates the roll, a seed inlet that is opened at the outer periphery of the housing and supplies seed to the depression, and a seed that is opened at the outer periphery of the housing and drops the seed from the depression. The seed sowing machine according to claim 1, comprising a seed discharge port for seeding by seeding, and a seed storage unit for supplying seeds to the seed introduction port.