JP2011167128A - Combined puncher seeder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combined puncher seeder capable of reducing the diameter of a hole opened in a mulching sheet for covering a ridge of a field and applying a seed at center of the hole. <P>SOLUTION: The combined puncher seeder 1 comprises a frame 10 movable along the ridge R and an outer cutter 20 and an inner seeding pipe 30 concentrically fixed to the frame 10. The cutter 20 having a ring form is movable in vertical direction, has a diameter of 20-30 mm and opens a small hole H having a diameter nearly equal to the cutter diameter on the mulching sheet M at a lowered position. The seeding pipe 30 has a double structure comprising a core pipe 31 and a sheath pipe 32 which are independently movable in vertical direction, and the core pipe 31 and the sheath pipe 32 are driven their lower ends into the soil of the ridge R at the lowered position. The core pipe 31 to feed the seed S has a discharging port 31b of the seed S at the outer circumference of the lower end, and the discharging port 31b is closed when the sheath pipe 32 is at the lowered position. The discharging port 31b is opened by lifting the sheath pipe 32 to apply the seed S at nearly the center of the hole H of the mulching sheet M. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

The present invention relates to a combined drilling and sowing apparatus that performs drilling in a multi-sheet that covers a field fence and sowing seeds into the hole.
The present invention also relates to a sowing method using the above-described apparatus or the like.

Field moths are often covered with a multi-sheet (mulching sheet) to prevent weeds from breeding, etc., but this multi-sheet will get in the way and sow seeds such as vegetables to grow on I can't.
For this reason, it is common practice to first drill holes for sowing in a multi-sheet using a drilling device (see Patent Document 1), and then seed seeds from this hole to the persimmon using a seeding device. .

  Here, in the conventional seeding device, the detection piece attached to the rear part of the tractor traces on the multi-sheet, and when it comes to the hole of the multi-sheet, the detection piece falls into the hole, so that the difference between the holes A system is used to detect the presence and sow seeds based on this. However, the method using this seeding device has the following two problems.

Japanese Utility Model Publication No. 5-70256

The first problem is that in the above-described conventional method, if the diameter of the hole in the multi-sheet is small, the detection piece does not easily fall into the hole and the hole detection accuracy does not increase. For example, it is necessary to be about 45 mm to 50 mm.
Thus, the larger the hole diameter, the larger the exposed portion of the cocoon, and the more weeds will propagate from that portion, and the growth of vegetables will be hindered.

The second problem is that, in the above-described conventional method, the detection piece detects the hole by dropping into the hole at the boundary portion between the multi-sheet and the hole, and the seed is supplied in conjunction with the detection piece. It is to be swept away at the edge.
If the seeds are offset from the edge of the hole in this way, the multi-sheet becomes an obstacle and the growth of the vegetables is inhibited.

  Therefore, there is a demand for an apparatus that can reduce the diameter of a hole that is formed in a multi-sheet that covers a vine in a field and that can seed seeds at the center of the hole.

  In order to solve the problems as described above, the inventors have invented a drilling and sowing device that can simultaneously drill a hole in a multi-sheet covering a field fence and sow the hole with a single device. It was.

Specifically, the drilling and sowing device according to the invention includes a frame that is attached to a vehicle and is movable along a ridge, and an annular cutter that is fixed to the frame so as to be movable up and down and opens a hole in a multi-seat at a lowered position. And a sowing pipe fixed to the frame so as to be movable up and down so as to be concentric inside the annular cutter, and having a lower end inserted into the soil of the paddle at the lowered position.
More specifically, the seed sowing pipe can be moved up and down independently of a core pipe capable of discharging seeds introduced from the upper end through an internal passage through an outlet provided on the outer periphery of the lower end, and the core pipe. A sheath pipe that closes the discharge port of the core pipe at a lowering position relative to the core pipe and opens the discharge port of the core pipe at a higher position relative to the core pipe. .

While driving the vehicle, the core pipe, the sheath pipe and the annular cutter of the sowing pipe, which are all in the raised position with respect to the frame at a predetermined position on the heel, are lowered synchronously. Then, a hole is made in the multi-sheet by the annular cutter, and at the same time, the lower end portion of the sowing pipe is inserted into the soil of the straw.
From this state, when only the annular cutter and the sowing pipe sheath pipe are raised, the core pipe discharge port that remains in the lowered position is released from clogging by the sheath pipe in the soil, and the seeds put into the core pipe are discharged. After that, they are put into the ground.

Furthermore, when the core pipe is raised, the annular cutter, the core pipe, and the sheath pipe are all returned to the original raised position.
If this series of operations is performed at predetermined intervals while the vehicle is running and the frame is moved along the ridge, the punching of the multi-sheet and the sowing operation into the hole can be automated.

In addition, as a method of sowing, as described above, the core pipe and the sheath pipe are simultaneously raised from the state where the lower end portion of the sowing pipe is inserted into the soil, and the rise of the core pipe is stopped in the air to stop the sheath pipe. It is also possible to adopt a method in which only the seeds are raised to open the outlet of the core pipe and the discharged seeds are dropped.
If it does in this way, since the discharge port remains obstruct | occluded in soil, it can prevent easily that soil etc. penetrate | invade in a core pipe from a discharge port.

Here, the seeding pipe is located concentrically inside the annular cutter that makes a hole in the multi-sheet, and the seed is discharged from here, so that the seed is planted around the center of the hole in the multi-sheet. Therefore, the multi-sheet does not interfere with vegetable growth.
As the annular cutter, any of a punch cutter, a thermal cutter, and a laser cutter can be adopted.

In addition, unlike the conventional method, the multi-sheet hole is drilled first and then the hole is not detected by the detection piece. It is no longer necessary to expand the hole for detection.
Therefore, the diameter of the annular cutter can be made as small as 20 mm to 30 mm, for example, and the hole of the multi-sheet can be made much smaller than the conventional 45 mm to 50 mm. As a result, the area of the cocoon exposed from the hole is reduced, and it is possible to suppress the propagation of weeds.

  Further, when the core pipe is assumed that the bottom of the internal passage is inclined downward toward the discharge port and becomes a middle height in the horizontal direction of the inclined direction, the seed is either left or right of the inclined direction in the core pipe. It is preferable because it is positioned side by side and is smoothly discharged from the discharge port along the inclination.

  Furthermore, when the sheath pipe has a bulging portion that can hold the punched debris produced by punching the multi-sheet of the annular cutter with the inner periphery of the cutter, it collects unnecessary punched debris simultaneously with the drilling of the multi-sheet. This is preferable because it is possible.

Furthermore, it is preferable that the core pipe has a conical pointed portion at the lower end because the core pipe is easily pierced into the soil of the fence.
Furthermore, if this piercing and sowing device is provided with a spring that biases the sheath pipe to a lower position relative to the core pipe, the core pipe outlet is quickly closed by the sheath pipe after sowing. , Dirt and dust can be prevented from entering the core pipe from the discharge port.

  Since the hole drilling and sowing device according to the invention is configured as described above, the diameter of the hole to be opened in the multi-sheet covering the field fence can be reduced and the seed can be planted at the center of the hole.

Whole front view of the drilling and sowing device of the first embodiment Whole longitudinal cross-sectional view of the drilling seeding combined use apparatus of 1st Embodiment (A) is the principal part longitudinal cross-sectional view, (b) is a principal part perspective view of the drilling seeding combined use apparatus of 1st Embodiment. Longitudinal sectional view of the device for combined use with drilling seeds of the first embodiment (A) is the principal part longitudinal cross-sectional view, (b) is a principal part perspective view of the drilling seeding combined use apparatus of 2nd Embodiment. (A) is a principal part longitudinal cross-sectional view, (b) is a principal part perspective view of the drilling seeding combined use apparatus of 3rd Embodiment. (A) is a principal part longitudinal cross-sectional view, (b) is a principal part perspective view of the drilling seeding combined use apparatus of 4th Embodiment. The side view which shows operation | movement of the sowing pipe of the drilling seed sowing combined apparatus of 4th Embodiment.

  Embodiments of the present invention will be described below with reference to the drawings.

  The drilling and sowing device 1 according to the first embodiment shown in FIGS. 1 to 3 is used by being attached to a vehicle such as a tractor, and is used for drilling a field ridge R covered with a multi-sheet M, and its hole H. The operation of sowing vegetable seeds S such as scallions is performed almost simultaneously by one apparatus.

Specifically, as shown in FIG. 1, the dual-purpose device 1 includes a frame 10, a cutter 20, and a sowing pipe 30.
As shown in the figure, the frame 10 has a horizontal portion 11 and an upright portion 12 that rises from both ends of the horizontal portion 11 and has a U-shaped appearance in a side view. The upright portion 12 is fixed to the rear portion of the tractor (not shown), so that the frame 10 can move along the ridge.

A plurality of cutters 20 are fixed to the horizontal portion 11 of the frame 10 on the outer side, and a plurality of sowing pipes 30 are fixed on the inner side in a concentric manner.
The annular cutter 20 and the sowing pipe 30 are arranged in a zigzag shape in plan view. For example, nine are fixed to the frame 10.

Each cutter 20 is a cylindrical (annular) punch cutter, and is fixed to the frame 10 so as to be movable up and down. These can be moved up and down synchronously by a known mechanism (not shown) using a cam or the like mounted on the tractor.
As shown in FIGS. 2 and 3, the lower end portion of each cutter 20 becomes a blade portion 21 formed of a wave blade so that the multi-sheet M can be cut at the lowered position of the cutter 20 to open a circular hole H. It has become.
The outer diameter of the cutter 20 is, for example, 20 mm to 30 mm, and the thickness of the blade portion 21 is, for example, 0.2 mm to 1.5 mm.

On the other hand, the sowing pipe 30 has a double structure of a cylindrical inner core pipe 31 and an outer sheath pipe 32 as shown in FIGS. 2 and 3, and is fixed to the frame 10 so as to be movable up and down. ing.
The outer diameter of the core pipe 31 is, for example, about 7.5 mm, the inner diameter of the sheath pipe 32 is, for example, about 8 mm, and the outer diameter is, for example, about 12 mm.

The core pipe 31 can be moved up and down independently of the cutter 20 by a known mechanism mounted on the tractor in the same manner as the cutter 20.
Further, as shown in FIG. 2, the core pipe 31 is a hopper 31a in which the upper end portion spreads in a funnel shape and the seed S is introduced, and the outer peripheral surface of the lower end portion has a discharge port 31b. Therefore, the hollow inside the pipe serves as a passage 31c, and the seed S is guided (dropped) from the hopper 31a to the lower end portion and discharged from the discharge port 31b.

The tractor is equipped with a known seed supply mechanism (not shown), from which seed S (coated with resin for making handling easy and spherical) is supplied to the hopper 31a of the core pipe 31. It has come to be.
The tractor is also equipped with a known chemical solution spraying mechanism (not shown), and the nozzle faces the hopper 31 a of the core pipe 31. The seed S supplied from the seed supply mechanism to the hopper 31a of the core pipe 31 is sterilized by chemical solution injection from the nozzle of this chemical solution spraying mechanism. At the same time, the injection force of the chemical solution is promptly sent to the lower end portion through the internal passage 31c of the core pipe 31.

The core pipe 31 has a double-edged sharp point 31d at the lower end, and the lower end of the core pipe 31 is inserted (pierced) into the soil of the kite when the core pipe 31 is lowered.
Further, the bottom 31e of the internal passage 31c of the core pipe 31 is inclined downward toward the discharge port 31b, and has a middle and high shape with a high center and low both sides in the horizontal direction (both sides) of the inclined direction. That is, the slope is downward from the center toward both sides.

The sheath pipe 32 can be moved up and down independently of the core pipe 31 by a known mechanism mounted on the tractor like the cutter 20.
When the sheath pipe 32 is at a relatively elevated position when viewed from the core pipe 31, the discharge port 31b of the core pipe 31 is opened. Further, when the sheath pipe 32 is at a relatively lowered position when viewed from the core pipe 31, the discharge port 31 b of the core pipe 31 is blocked by the sheath pipe 32.

  Further, the lower end portion of the sheath pipe 32 swells into a hollow ring shape (donut shape) to form a bulge portion 32a, and a gap is formed between the bulge portion 32a and the core pipe. Since the inner diameter of the sheath pipe 32 is 8 mm and the outer diameter of the core pipe 31 is 7.5 mm at the places other than the bulging portion 32a as described above, there is almost no gap between them.

The configuration of the dual-purpose device 1 of the first embodiment is as described above. Next, the operation will be described with reference to FIG.
While the tractor is traveling, all of the cutter 20, the core pipe 31, and the sheath pipe 32 are simultaneously lowered from the frame 10 at a predetermined position on the cage covered with the multi-seat as shown in FIG.
When the cutter 20 is lowered, the multi-sheet M is cut as shown in FIG. 4B, and a small circular hole H having the same diameter as the cutter 20 having an outer diameter of 20 mm to 30 mm is formed.

Further, as the core pipe 31 and the sheath pipe 32 are lowered, as shown in FIG. 4B, the sharp portion of the core pipe 31 is pierced into the soil, and the lower ends of the core pipe 31 and the sheath pipe 32 are inserted into the soil.
Here, since the core pipe 31 and the sheath pipe 32 are simultaneously lowered at the same speed, the discharge port 31b of the core pipe 31 remains blocked by the sheath pipe 32.

Next, of the cutter 20, the core pipe 31, and the sheath pipe 32 in the lowered position, only the cutter 20 and the sheath pipe 32 are raised as shown in FIG.
Then, only the core pipe 31 remains in the lowered position, and the discharge port 31b of the core pipe 31 is opened in the soil of the ridge R by the rise of the sheath pipe 32.
Further, the punched piece D of the multi-sheet M formed by cutting the cutter 20 is sandwiched between the bulging portion 32a of the sheath pipe 32 and the inner periphery of the cutter 20, and is lifted together with these to be removed from the kite and collected.

Separately, the core pipe 31 is supplied with the sterilized seed S by the above-described seed supply mechanism and chemical solution spraying mechanism.
Here, since the bottom of the internal passage 31c of the core pipe 31 is inclined toward the discharge port 31b, the seed S supplied to the core pipe 31 is smoothly removed from the discharge port 31b along this inclination. Discharged into the soil.
At this time, since the bottom 31e of the internal passage of the core pipe 31 has a middle height in the left-right direction of the inclination direction, the seed S is positioned so as to be biased to either the left or right side, and then is discharged from the discharge port 31b. Will be discharged.
In this way, the seed S and the multi-sheet M are automatically seeded in the substantially central part of the hole H. Note that after seeding, the seed S may be easily fixed by pressing on the ridge R with a roller attached to the tractor.
Finally, as shown in FIG. 4 (d), when the core pipe 31 is also raised, the seeding operation is completed, and the state returns to the state shown in FIG. 4 (a).

When the tractor is moved along the ridge R and the operations shown in FIGS. 4A to 4D are sequentially performed at a predetermined interval, the drilling operation of the multi-sheet M and the seeding operation to the hole H are continuously performed. Will be done.
Since the hole H of the multi-sheet M opened using the combined device 1 is small as described above, it is difficult for the weeds to breed on the reed.
In addition, since the seed S sown by the dual-purpose device 1 is located at substantially the center of the hole H as described above, even if the multi-sheet M on the edge of the hole flutters in the wind, it hinders vegetable growth. There is nothing.

The seeding method is not limited to this embodiment, and may be as follows, for example.
First, the core pipe 31 and the sheath pipe 32 are simultaneously lowered and pierced into the heel R, and then both the pipes 31 and 32 are simultaneously raised and removed from the ridge R. Next, only the sheath pipe 32 is raised to open the discharge port 31b of the core pipe 31 in the air, and the seed S is dropped from the discharge port 31b into the recess formed in the ridge R by the piercing of both the pipes 31 and 32.
If it does in this way, since the discharge port 31b remains obstruct | occluded in the soil, it can prevent that soil and dust penetrate | invade into the core pipe 31 from the discharge port 31b.

FIG. 5 shows a punching and sowing apparatus 1 according to the second embodiment. The description of the same structure as the dual-purpose device 1 of the first embodiment is omitted.
In this dual-purpose device 1, the sharpened portion 31d of the core pipe 31 is a single blade, and the bottom 31e of the core pipe 31 is inclined downward toward the discharge port 31b, but does not have a middle height in the left-right direction. It is flat (horizontal).
Also in the combined device 1 of this embodiment, as in the first embodiment, since the hole H of the multi-sheet M is small, it is difficult for the weeds to propagate in the ridges R, and the seed S is almost centered in the hole H. M does not interfere with vegetable growth.

FIG. 6 shows a punching and sowing device 1 according to a third embodiment. Detailed description of the same structure as the dual-purpose device 1 of the first and second embodiments is omitted.
In this combined device 1, the sharp part 31d of the core pipe 31 has a conical shape.
Thus, since the sharp part 31d is conical, the core pipe 31 is smoothly pierced into the soil of the ridge R.
The discharge port 31b of the core pipe 31 is elongated in the longitudinal direction of the pipe, and the bottom 31e is inclined gently downward toward the discharge port 31b. Moreover, the pipe 32 has the bulging part 32a similarly to the said embodiment.

7 and 8 show a drilling and sowing device 1 according to a fourth embodiment. The description of the same structure as the dual-purpose device 1 of the first and second embodiments is omitted.
In the dual-purpose device 1, the sharp part 31d of the core pipe 31 has a conical shape, the discharge port 31b is elongated in the longitudinal direction of the pipe, and the lower part extends to the sharp part 31d. The bottom 31e is gently inclined downward toward the discharge port.
On the other hand, the lower end portion of the sheath pipe 32 also bulges out and has a substantially conical shape (a truncated conical shape). Further, the sheath pipe 32 is provided with a lid piece 32b extending downward from its lower end.
Here, at the lowering position of the sheath pipe 32 relative to the core pipe 31, the lid piece 32b closes the discharge port 31b provided on the sharp portion 31d of the core pipe 31, and at the relative rising position, The lid 31b opens the discharge port 31b.
Further, a collar 31 f is screwed to the upper end side of the core pipe 31, and a spring 33 that fits outside the core pipe 31 is loaded between the collar 31 f and the upper end of the sheath pipe 32.

Since the discharge port 31b is arranged closer to the lower end than the first to third embodiments, the seed S is dropped from the air into the recess formed in the ridge R by the piercing of both the pipes 31 and 32. Even when seeding is performed, the fall position is difficult to shift, and the seed S can be accurately stored in the recess.
Moreover, since the sheath pipe 32 is urged by the spring 33 in a direction to close the discharge port 31b of the core pipe 31, the seeding operation is completed even when the discharge port 31b is opened in the soil of the ridge R and seeding is performed. It is possible to quickly close the discharge port 31b. Therefore, it is possible to suppress soil from entering the core pipe 31.

DESCRIPTION OF SYMBOLS 1 Hole drilling combined use apparatus 10 Frame 11 Horizontal part 12 Standing part 20 Cutter 21 Blade part 30 Seeding pipe 31 Core pipe 31a Hopper 31b Discharge port 31c Internal passage 31d Sharp part 31e Bottom of internal passage 31f Collar 32 Sheath pipe 32a Swelling part 32b Lid piece 33 Spring R Field ridge M Multi-sheet H Multi-sheet hole D Multi-sheet punching waste S Seed

Claims (7)

A drilling and sowing device 1 for perforating a multi-sheet M that covers a ridge R of a field and sowing the hole H;
A frame 10 attached to the vehicle and movable along the ridge R;
An annular cutter 20 fixed to the frame 10 so as to be movable up and down, and capable of making a hole H in the multi-sheet M at the lowered position;
A seeding pipe 30 fixed to the frame 10 so as to be movable up and down so as to be concentric inside the annular cutter 20 and having a lower end portion inserted into the soil of the ridge R at the lowered position;
The sowing pipe 30 is
A core pipe 31 capable of discharging seed S introduced from the upper end portion through an outlet 31b provided on the outer periphery of the lower end portion through an internal passage 31c;
The core pipe 31 can be moved up and down independently. The discharge port 31b of the core pipe 31 is closed at a lower position relative to the core pipe 31, and the upper position relative to the core pipe 31 is the above. A punching and sowing device having a sheath pipe 32 that opens the discharge port 31b of the core pipe 31.   2. The perforated sowing apparatus according to claim 1, wherein the bottom 31 e of the internal passage of the core pipe 31 is inclined downward toward the discharge port 31 b and becomes a middle height in the left-right direction of the inclined direction.   The perforation according to claim 1 or 2, wherein the sheath pipe (32) has a bulging portion (32a) capable of holding a punched residue (D) that is produced by perforating the multi-sheet (M) of the annular cutter (20) with the inner periphery of the cutter (20). Combined sowing device.   The said core pipe 31 is a drilling seeding combined use apparatus in any one of Claim 1 to 3 which has the conical pointed part 31d in the lower end.   The punching and sowing device according to any one of claims 1 to 4, further comprising a spring 33 that urges the sheath pipe 32 to a lowered position relative to the core pipe 31.   6. The drilling and sowing device according to claim 1, wherein a diameter of the ring of the cutter 20 is 20 mm to 30 mm. It is a method of sowing seeds in field R
A core pipe 31 capable of discharging seeds introduced from the upper end portion through an internal passage 31c through a discharge port 31b provided on the outer periphery of the lower end portion, and can be moved up and down independently of the core pipe 31. A sheath pipe 32 that closes the discharge port 31b of the core pipe 31 at a relatively lowered position and opens the discharge port 31b of the core pipe 31 at a relatively raised position with respect to the core pipe 31. Preparing 30,
The core pipe 31 and the sheath pipe 32 are simultaneously lowered while the discharge port 31b is closed, and inserted into the ridge R to form a recess;
Raising the core pipe 31 and the sheath pipe 32 at the same time and extracting them from the recesses of the flange R;
A seeding method comprising: raising only the sheath pipe 32 to open the discharge port 31b of the core pipe 31b in the air, and dropping the discharged seed S toward the recess of the ridge R.

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