JP2006158321A - Sowing apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sowing apparatus with which as a furrow is formed by a furrow opener and seeds are surely dropped in the furrow so as to be sown in the furrow and covered with a covering material simultaneously with sowing. <P>SOLUTION: In the sowing apparatus equipped with a sowing tube 13 below a feed drum 9 and sowing seeds fed from the feed drum 9 through the sowing tube 13 in surface of the earth, the sowing apparatus is furnished with the furrow opener 14 so as to enclose the sowing tube 13. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a sowing apparatus suitable for directly sowing seeds such as pods in a field.

  There are two ways to cultivate rice: transplanting seedlings (rice planting) and direct seeding of straw. The latter is less time consuming. For this reason, direct sowing has increased recently, but direct sowing is said to have a low yield. The cause is that seeding is not performed completely. Even if seeding is performed completely, the yield will increase, but it will not decrease. Direct sowing of pods is performed with a sowing machine, and as is also seen in Patent Document 1 below, the conventional sowing machine drops seeds (soot) from the sowing tube after forming grooves with a grooving device.

  According to this, if the grooving device is moving while drawing a curve, the position of the groove and the dropping position of the ridge may shift and the ridge may not enter the groove. In such a state, the germination rate deteriorates due to the birds being caught or blown by the wind, and the yield is naturally reduced. On the other hand, it is also important to cover the dropped kite with a coating material. This is because it maintains moderate moisture and air to improve the germination environment, and also helps prevent bird damage and scattering. Conventionally, the soil was covered with a soil covering roller provided at the rear of the seeding tube, but the soil could not be sufficiently covered by simply rolling the roller.

In addition, since the covering material is too hard in the soil, it is suitable to use straw that has been scattered in the field after harvesting rice, newly introduced straw or grass, etc. as a covering material. It took a lot of time and effort. For this reason, it was not possible to cover well, or it was omitted and the yield was reduced.
JP-A-8-294305

  According to the present invention, the seed tube is passed through the groove producing device so that the seed can be seeded at the same position as the groove producing device, and the cocoon is surely dropped into the groove, and the groin is provided above the groove producing device. The seedlings are covered with the seeds at the time of sowing.

  Under the above-mentioned problems, the present invention provides a seeding tube according to claim 1, in which a seeding tube is provided below the feeding drum, and seeded from the feeding drum is seeded on the ground surface through the seeding tube. A seeding device, characterized in that it is mounted so as to surround a tube, wherein the first covering is attached above the grooving device and is forcedly rotated in a horizontal plane. According to a fourth aspect of the present invention, there is provided means for attaching a second covering which is also forcedly rotated in a horizontal plane in front of the first covering.

  According to the means of claim 1, the cocoon can be reliably dropped into the groove formed by the grooving device, and according to the means of claim 2, the cocoon can be covered simultaneously with sowing. According to the means, the covering is further ensured.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS The best mode for carrying out the present invention will be described below with reference to the drawings, taking the case as an example. 3 is a side view of the seeding device, FIG. 4 is a front view, FIG. 1 is a partial cross-sectional side view of the main part of the seeding device, and FIG. 2 is a cross-sectional view taken along line AA in FIG. It is connected to the rear part of a tractor (not shown), has a base 1 that extends horizontally in the front-rear direction, and is provided with a parallel link part 3 on a base pillar 2 that stands up from the front part of the base 1. The parallel link portion 3 is connected by a connecting bar 4 extending left and right. And the hitch part 5 connected to the tractor is attached to the center of the connecting bar 4. Note that the parallel link portion 3 is provided with a sleeve 6 that fits to the base column 2, and the height and interval with respect to the tractor can be adjusted by adjusting the vertical position of the sleeve 6 and the angle of the parallel link portion 3. It has become.

  A support column 7 is erected on the rear portion of the base 1, and a bracket 8 is horizontally extended from the support column 7, and a feeding drum 9 is rotatably provided on the front portion of the bracket 8 in a vertical plane. In addition, a storage tank 10 (10a is a lid that can be opened and closed) in which a basket is placed is fastened to the bracket 8 with a stay 11 above the feeding drum 9. The inside of the feeding drum 9 is hollow, and the guiding pipe 12 extending from the bottom of the storage tank 10 is guided to the inside. In addition, the outer peripheral surface of the feeding drum 9 is provided corresponding to the spacing of the ridges to which the feeding holes 9a are dropped, and the size of the feeding holes 9a is in accordance with the number of cocoon grains (around 10 grains) to be fed out. Is set to

  Below the feeding drum 9, a seeding tube 13 is provided vertically through the base 1, and a groover 14 is attached to the lower end of the seeding tube 13 so as to surround it. That is, the seeding tube 13 is inserted through the groove producing device 14. The seeding tube 13 guides the culm discharged from the feeding hole 9a of the feeding drum 9 to the ground surface, and a funnel-shaped receiving tray 15 is attached to the upper end of the sowing tube 13 to prevent the spilling. The grooving device 14 forms a groove in the field, and in this example, has a shape like a pointed ridge.

  Further, the arms 16 are protruded on both sides of the support column 7, and the two foils 17 are attached so as to be rotatable in the advancing direction by adjusting the height so as to sandwich the groove forming device 14 at both ends of the arm 16. A link 18 is pivotally attached to the rear portion of the bracket 8 with a pin 19, and a grounding roller 20 having protrusions 20 a protruding from the rear end of the link 18 at an appropriate interval is rotatably supported in the traveling direction. Yes. Further, the horizontal rod 21 is extended from the upper end of the bracket 8 and is extended through the vertical rod 22 raised from the rear portion of the link 18. A spring 23 is installed on the vertical rod 22 above the horizontal rod 21 so that the link 18 does not rotate downward more than a certain amount.

  The grounding roller 20 covers the groove after the dredging has been dropped, but also applies rotational force to the feeding drum 9 at the same time. For this reason, sprockets 24 and 25 are attached to the feeding drum 9 and the grounding roller 20, respectively, and these are connected by a chain. At this time, the link 18 to which the grounding roller 20 is attached is bent at the position of the pin 19, The two sprockets 26a and 26b are fitted to the pin 18, the chain 27a is hung on the sprockets 24 and 26a, and the chain 27b is hung on the sprockets 26b and 25, so that the grounding roller 20 is connected regardless of the bending angle of the link 18. Is transmitted to the feeding drum 9.

  In the present invention, a first covering 28 is provided on the seeding tube 13 between the base 1 and the groove producing device 14 so as to cover the seeding sprinkled on the ground surface. Then, a second cover 29 is provided in front of the first cover 28. The first cover 28 and the second cover 29 are each forcibly rotated in a horizontal plane. Therefore, in this example, a motor 30 with a speed reducer is installed at the front end of the base 1, and the base 1, sprockets 32 and 33 are attached to an output shaft 30 a and a sleeve 31 that is rotatably fitted to the seeding tube 13 and is fixedly fitted to the first cover 28, respectively. It is connected with. Furthermore, the output shaft 30a of the motor 30 with a reduction gear is protruded below the base 1, and the second cover 29 is fixedly fitted thereto.

  The driving source in this example is a motor with a speed reducer mounted with a battery or the like and using this as a driving source, but a hydraulic motor may also be used. Since the tractor is usually equipped with a hydraulic unit, if the hydraulic pressure is used as a driving source, a battery or the like is not necessary, and the cost can be reduced. Furthermore, although it has been described that the first cover 28 and the second cover 29 rotate in the horizontal plane, this is not a strict meaning and may rotate in a slightly inclined plane.

  The first cover 28 of this example has a diamond-shaped cross section, and is provided with protrusions 28a and 28b at the respective corners. In addition, the shape of a rhombus is an example, and is not limited to this. Further, the second cover 29 has a disk shape, and a protrusion 29a is provided on the outer periphery thereof. By the way, the number, arrangement, amount of protrusion, etc. of these protrusions 28a, 28b, 29a are arbitrarily set, but the protrusions 28a, 28b of the first cover 28 and the protrusion 29a of the second cover 29 do not interfere with each other. It is. A plurality of sowing units U including the above-described parallel link portion 3, feeding drum 9, sowing tube 13, and grooving device 14 are provided in parallel to the connecting bar 4, and the hitch portion 5 is connected to the tractor. By connecting to, a plurality of sowing units U can be pulled simultaneously (multiple sowing can be performed simultaneously).

  Next, the case of sowing seeds in the field using the above seeding device will be described. When the hitch portion 5 is connected to the tractor and enters the field, the grooving device 14 digs a groove (the groove at this time). The grounding roller 20 contacts the ground surface and rotates (at this time, the protrusion 20 bites into the ground to ensure a reliable rotation), and the foil 17 also rotates and contacts the ground. In this respect, the foil 17 serves as a guide for progress and also serves as a depth setting device. When the ground roller 20 rotates, the rotational force is transmitted to the feeding drum 9 through the sprockets 24, 25, 26 and the chains 27a, 27b, and rotates them. Inside the feeding drum 9, soot is supplied from the storage tank 10 through the seed pipe 12, so that the soot is discharged from the feeding hole 9 a as the feeding drum 9 rotates.

  When the soot is discharged from the feeding hole 9 a, the soot is reliably received by the receiving tray 15, falls through the seeding tube 13, and falls into the groove formed by the grooving device 14. At this time, since the seeding tube 13 is inserted through the groove producing device 14, even if the groove producing device 14 forms a groove while drawing a curve, the cocoon surely falls into the groove. On the other hand, since the first cover 28 is rotating above the grooving device 14, the protrusions 28a and 28b cover the ridges scattered on the ground surface on the ridges in the grooves. In this respect, the height of the protrusions 28a and 28b needs to be set so as to act on the ridge.

  At this time, the fact that the cross section of the first cover 28 has a rhombus contributes to the fact that the long and short corners act on the wrinkle and disturb it. Further, the presence of the foil 17 on both sides of the first cover 28 contributes to covering the groove while keeping the splash of the cover within this range. In addition, if the second cover 29 is provided in front of the first cover 28, the cracking of the paddle is further promoted, and the covering of the paddle becomes more reliable. In this way, it is possible to cover the seeds simultaneously with sowing, and there is no need for manual post-work.

  By the way, direct sowing of straw is carried out around May, but it is not necessary to cultivate the field until then (there is no difference in yield). Rice is harvested around September-October. At this time, straw is cut finely with a combine cutter and scattered in the field, but it can be sown directly. However, after 6 months or more, the cocoons adhere to the soil and harden, so it is suitable to mow the grass before direct sowing and loosen it together. Even in this case, when plowing with rotary, mowing and grass are squeezed into the ground, so mowing and mowing are suitable. In this way, cultivation of rice can be saved as much as possible. In addition, although the above is a thing regarding sowing of a cocoon, it cannot be overemphasized that this invention is applicable not only to this but to seed | inoculate wheat, vegetables, and other seed | species.

It is a partial cross section side view of the principal part of a seeding apparatus. It is AA sectional drawing of FIG. It is a side view of a seeding apparatus. It is a partial front view of a seeding apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base 2 Base pillar 3 Parallel ring part 4 Connecting bar 5 Hitch part 6 Sleeve 7 Support | pillar 8 Bracket 9 Feeding drum 9a Feeding hole 10 Storage tank 10a Cover 11 Stay 12 Seeding pipe 13 Seeding pipe 14 Grooving machine 15 Sauce 16 Arm 17 Wheel 18 Link 19 Pin 20 Ground roller 20a Projection 21 Horizontal rod 22 Vertical rod 23 Spring 24 Sprocket 25 Sprocket 26a Sprocket 26b Sprocket 27a Chain 27b Chain 28 First rod cover 28a Projection 28b projection 29 Second rod cover 29a Projection 30 With reduction gear Motor 30a output shaft 31 sleeve 32 sprocket 33 sprocket 34 chain U sowing unit

Claims (7)

  A seeding device, wherein a seeding tube is provided below a feeding drum, and a seeder fed from the feeding drum is seeded on the ground surface through the seeding tube, and a grooving device is attached so as to surround the seeding tube.   The sowing apparatus according to claim 1, wherein a first covering that is forced to rotate in a horizontal plane is attached above the grooving device.   The seeding device according to claim 2, wherein foils rotating in the traveling direction are attached to both sides of the first covering.   The seeding device according to claim 2 or 3, wherein the first covering is in a rhombus shape in a plan view, and protrusions are projected at the corners.   The seeding device according to any one of claims 1 to 4, wherein a second covering that is forcibly rotated in a horizontal plane is attached in front of the first covering.   The seeding device according to claim 5, wherein the second covering is a protrusion protruding around the disc body.   The sowing apparatus according to any one of claims 1 to 6, wherein a plurality of sowing units including a feeding drum, a sowing tube, and a grooving device are arranged in parallel.