JP4540972B2 - Grooving device for direct sowing - Google Patents

Description

  The present invention relates to a grooving device for direct sowing comprising grooving means, sowing means, and soil covering means.

Conventionally, from the standpoint of sowing efficiency in the direct sowing grooving device, the direct sowing groove is formed in a stable state, aerobic after covering, uniform germination and growth of the seed sowed, direct sowing production A direct sowing grooving device has been considered which improves the properties. For example, in Patent Document 1, a rotary shaft composed of a round shaft that rotates around an axis while being in contact with the ground has a shallow groove forming blade having a larger diameter than the diameter thereof, and a diameter larger than that of the shallow groove forming blade on both sides thereof. A deep groove forming blade is provided, and a groove cutting blade in which a plurality of notches are provided at a substantially equiangular pitch on the peripheral portion of the blade, and the soil that is splashed up by the shallow groove forming blade is sprinkled, and the shallow groove due to rain A grooving device for direct sowing is described in which the bottom portion of the material is covered with soil by breaking. Further, Patent Document 2 discloses a shallow groove forming blade having a larger diameter than a diameter of a rotating shaft composed of a round shaft that rotates around an axis while being in contact with the ground, and a diameter larger than that of the shallow groove forming blade on both sides thereof. A deep groove forming blade is provided, and the outer shape of the grooved portion of the blade is formed by a tapered V-shaped or U-shaped groove cutting blade and a cover plate fixed to the seeding tube via a spring member A grooving device for direct sowing is characterized in that the seed is covered with soil and covered. Further, Patent Document 3 discloses a U-shaped grooved tool projecting outward from the outer periphery of the rotating body, a sowing pipe for sowing seeds, and a U-shape with an open rear side that guides soil in the upper part of the groove. There is described a rotary grooving seeding device including a covering tool that is a rod of the above-mentioned method, wherein the seeding pipe and the covering tool are movable up and down independently of each other.
Japanese Patent Laid-Open No. 5-146201 Japanese Examined Patent Publication No. 6-46888 JP 10-42627 A

  In such a conventional direct grooving device, various contrivances have been made for the shallow groove forming blade for the sowing groove and the deep groove forming blade for the drainage groove, but for the soil covering device important for seed germination, Patent Literature In No. 1, there is a possibility that the seed sowed will be scattered from the shallow groove due to the impact of the soil splashed by the shallow groove forming blade and the covered soil will be uneven. Similarly, when the bottom of the shallow groove collapses and is covered with rain, the seeds may scatter from the shallow groove due to the impact of raindrops and the cover soil may become uneven. In Patent Document 2, a cover plate is attached to the seeding tube via a spring member. However, if the biasing force of the spring member is too strong, the cover soil is increased and the soil is pressed and the aerobic properties of the seeds are easily impaired. In addition, seed germination will be inhibited. Therefore, it is difficult to adjust the biasing force of the spring member. In addition, the soil tends to accumulate on the cover plate, and when it accumulates, a large resistance is generated, and the cover plate may be lifted by the accumulated soil and the cover plate may not function. In Patent Document 3, since a plurality of covering tools, which are U-shaped bars with the rear opened, can be moved up and down independently and are biased downward by a spring, the biasing force of the spring is well set. Otherwise, the load applied to each shallow groove to cover the soil may not be uniform, and the soil covering may be uneven. Moreover, since each covering implement is independent, it is not easy to remove and install the covering implement. In addition, when the covering tool is pressed against the cultivated soil, the soil adheres to the covering tool or the spring, and the spring may be stretched or the like, so that the pressing force of the covering tool may be lost and the function may stop.

  Accordingly, an object of the present invention is to provide a grooving device for direct sowing that can reliably cover soil with a simple configuration and is less affected by adhesion of soil.

The direct sowing grooving apparatus according to the present invention includes a grooving means for forming a plurality of grooves in the cultivated soil, a sowing means for sowing a predetermined amount of seeds in each groove formed by the grooving means, in straight播用groove switching device provided with a soil covering means for soil covering the seeds sown in the grooves, the cover soil means rotatably connecting the disposed in each groove Rutotomoni wire formed into a coil shape A plurality of soil covering members, and a connecting member that connects the soil covering members and is mounted on the apparatus main body so as to be movable up and down.

  Further, the seeding means is provided with rocking means for rocking the seed discharge port.

  Further, the grooving means is a rotating body whose outer periphery is tapered in a V shape or a U shape.

  Further, the groove cutting means is a rotating body having a plurality of cutout portions at a peripheral edge portion.

  The present invention has the above-described configuration, and includes a plurality of soil covering members arranged for each groove and a connecting member that is connected to the device body so as to be vertically movable while connecting the soil covering members. If the soil covering member is integrated on the cultivated soil by the connecting member, each soil covering member will have a substantially uniform weight, and each soil covering member is attached to the main body independently. Compared with the case where it is done, the covering soil can be made uniform. Then, the weight of the connecting member is also applied to the soil covering member, and the soil covering can be reliably performed without the urging force of the spring member or the like. Further, even when a spring member is used, the connecting member may be urged, and it is not necessary to arrange a spring member for each soil covering member, and it is not necessary to individually adjust the connecting member. Further, by removing the connecting member from the main body, the plurality of soil covering members can be detached at once, and can be easily detached as compared with the case where the soil covering members are independently attached to the main body.

  Furthermore, by connecting a plurality of soil covering members in a rotatable manner, the soil accumulated by the squeezing action can be discharged to the rear as appropriate while covering the soil, and there is no load due to the soil adhering to the soil covering member. It becomes difficult to break down. In addition, by rotating each soil covering member, it is possible to reliably perform soil covering even if the condition of each groove is different. For example, even if the inclination of each groove is different, the soil covering member operates along each inclination.

  Furthermore, by making the shape of the soil covering member into a coil shape, the soil is constantly trapped in the gap between the coils and released, so that the soil does not accumulate, and the soil is covered while being soiled. Thus, the groove is not pressed more than necessary, and the aerobic property of the seed after covering is maintained.

  Moreover, by making the shape of the soil covering member into a columnar shape, soil is covered while rolling the grooves on the outer peripheral surface thereof, so that the grooves can be reliably covered. And if protrusion is formed in an outer peripheral surface, it can cover soil more efficiently.

  Further, by providing the seeding means with a swinging means for swinging the seed outlet, the soil adhering to the outlet can be screened off, and the seeding operation can be performed satisfactorily.

  Furthermore, by making the grooving means a rotating body having a V-shaped or U-shaped outer periphery, it is possible to squeeze the cultivated soil while pushing it in an unreasonable state, and each formed groove is Since the groove has a stable surface with few irregularities and the groove cross section is clear and in a stable V-shape or U-shape, the seeds sown in each groove are at the same height, , Uniform soil covering can be performed.

  Moreover, when the groove cutting means is a rotating body having a plurality of cutout portions at the peripheral edge portion, when forming each strip groove, the cultivated soil is pushed apart while making a cut by the cutout portions. Moreover, even when rice stock or grass is mixed in the soil, it can be easily removed by the notch. Therefore, even if it is hardened ground or rough ground, the soil can be easily broken and the grooves can be easily formed.

  Hereinafter, the embodiment regarding the grooving apparatus for direct seeding according to the present invention will be described in detail. The embodiments described below are preferable specific examples for carrying out the present invention, and thus various technical limitations are made. However, the present invention clearly indicates that the invention is particularly limited in the following description. Unless otherwise specified, the present invention is not limited to these forms.

  FIG. 1 shows a perspective view of an embodiment according to the present invention. The apparatus main body 1 is connected to a tow truck 2 and is towed, and the tow truck 2 is equipped with a seed hopper 31 for temporarily storing seeds. The main body 1 is provided with a rotation member for cultivating cultivated soil forward in the traveling direction, and a grooving member 4 for forming the groove 3 on the rear side in the traveling direction of the tilling member is a cultivating member. It is attached to another rotating shaft 5. The grooving member 4 includes a plurality of deep groove forming blades 7 for forming deep grooves 6 for drainage and fertilization, and a plurality of shallow groove forming blades 9 for forming shallow grooves 8 for sowing. 7, the shallow groove forming blade 9 is disposed. A seeding pipe 10 is suspended from the upper part of the apparatus main body 1 behind the shallow groove forming blade 9 in the traveling direction, and the seeding pipe 10 is connected to the seed hopper 31 via a hose 11. A soil covering member 12 is disposed behind the sowing pipe 10 in the traveling direction. The soil covering member 12 is connected by a connecting member 13, and the connecting member 13 is mounted on the apparatus main body 1 so as to be movable up and down.

  2 and 3 are enlarged views of examples of the grooving member 4. As shown in FIG. 2, the deep groove forming blade 7 and the shallow groove forming blade 9 are formed in a circular shape having a larger diameter than the rotary shaft 5, and the deep groove forming blade 7 has a larger diameter than the shallow groove forming blade 9. Has been. The outer shape of the peripheral edge portion 15 of each blade is formed in a V-shaped cross section. By forming a V-shaped cross section, it is possible to apply the cultivated soil while pushing it apart without difficulty, and each formed groove 3 becomes a stable surface with few irregularities, and the groove cross section is clear and stable. The V-shape is the same as in the known art.

  Further, the deep groove forming blade 7 and the shallow groove forming blade 9 may be a combination of two rotary blades having a notch portion 16 and a cutting blade portion 17 as shown in FIG. Since both rotary blades are combined in an opposed state with a slight distance, when the deep groove 6 is formed, the cutting blade portion 17 pushes the ground in an unreasonable state while making a cut. In addition, rice plants or grass that have entered the space between the rotary blades when making the cuts are easily discharged from the gap between the cutting blade portion 17 and the cutout portion 16 or the gap between the opposing cutting blade portions. . Further, the shallow groove forming blade 9 also has the notch portion 18 so that the shallow groove 8 can be stably formed even when there are rice plants or grass, as in the known technique.

  By using the grooving member 4 as described above, as shown in FIG. 2 or FIG. 3, stable ridges 20 with less irregularities can be formed between the deep grooves 6, and the wall surfaces of the deep grooves 6 and the shallow grooves 8. No. 19 can also be rubbed and finished to a stable surface.

  Next, the soil covering member will be described. 4 is an enlarged view as seen from the direction of the rotation axis of the apparatus body, and FIG. 5 is a view as seen from the direction of travel of the apparatus body. As shown in FIGS. 4 and 5, the soil covering member 12 is connected by a connecting member 13 at the rear of the seeding pipe 10 in the traveling direction, and the connecting member 13 is attached to the apparatus main body 1 and can move up and down. Each of the covering materials 12 is rotatable. More specifically, the connecting member 13 includes a connecting support portion 13a attached to the upper cover 23 of the apparatus main body 1 and a connecting portion 13b to which the soil covering member 12 is connected. The upper end of the shaft support member 24 erected on the upper cover 23 is rotatably inserted into the through hole, and a retaining member is provided at the inserted end. 27 is attached. The retaining member 27 may be a nut, for example, and may be attached by screwing the end portion of the connection support portion 13a. As a result, the connection support portion 13a can rotate about the shaft support member 24, so that the connection member 13 can be moved up and down, and the connection support portion 13a does not fall off.

  The connection support portion 13a extends outward in parallel with the upper cover 23, and is bent downward at an appropriate length. A mounting portion 29 is formed at the other end of the connection support portion 13a. The attachment portion 29 has a through hole for mounting the connecting portion 13b. The connecting portion 13b is a single round bar extending in the horizontal direction, and both ends thereof are threaded. Both end portions are inserted into the through holes of the attachment portion 29 of the connection support portion 13a and fixed by the fixing nut 30, and the connection portion 13b is attached so as not to rotate.

  The soil covering member 12 is rotatably inserted through the connecting portion 13 b and is positioned at a position facing the shallow groove 8. The soil covering member 12 is positioned by arranging a pair of positioning clips 28 on both sides of the soil covering member 12 and fixing them to the connecting portion 13b. Since the fixing position of the positioning clip 28 can be freely changed by loosening the bolt, the position of the soil covering member 12 can also be freely changed, and the attaching and detaching of the soil covering member 12 can be easily performed. it can.

  When each soil covering member 12 is attached to one connecting portion 13b, each soil covering member 12 is applied with a substantially uniform weight, and each soil covering member 12 is independently attached to the main body. Compared to the above, the soil covering can be made uniform, and the plurality of soil covering members 12 can be detached at a time. Moreover, by making it free to rotate, the soil accumulated by the earthing action can be discharged to the rear as appropriate, and a load due to the soil adhering to the soil covering member 12 is not applied and the failure is less likely to occur. In order to perform more reliable soil covering with a higher load, for example, a weight or a spring member may be attached to the connecting member 13 so that a larger load is applied to the soil covering member 12, and the weight or the spring member may be adjusted. Thus, it is possible to adjust the soil covering condition.

  6 and 7 are perspective views showing the shape of the soil covering member 12. As shown in FIGS. 5 and 6, when the soil covering member 12 is a rotating body in which a wire is formed in a coil shape, both ends of the coil are formed so as to be wound around the connecting portion 13 b and can be rotated. Yes. The coiled rotating body 21 is positioned by fixing positioning clips 28 on both sides thereof, and the positioning clip 28 includes a disk-shaped shaft fitting portion 28a having a through hole for inserting the connecting portion 13b, and It consists of a fastening portion 28b protruding from the shaft fitting portion 28a. The bolt attached to the fastening portion 28b is loosened, inserted into the connecting portion 13b, and fixed by tightening the bolt. By fixing the positioning clip 28 on both sides of the coiled rotating body 21 with a slight gap therebetween, the coiled rotating body 21 can be disposed at a position facing the shallow groove 8 without hindering its rotation. Further, the predetermined position can be freely changed. Furthermore, desorption by replacement or the like can be easily performed. By using the coil-shaped rotating body 21, the soil is continuously caught and released by the gap between the coils, so that the soil does not accumulate, and the soil is covered while the soil is caught, so that the shallow groove 8 is softly covered. Since it is not pressed more than necessary, the aerobic properties of the seed after covering are maintained.

  FIG. 7 shows a case where the soil covering member 12 is a columnar rotating body 22. The columnar rotating body 22 is configured by sealing both sides of a metal cylindrical tube with a disc, and is connected by forming a through hole in the center of the disc and inserting the connecting portion 13b. It can be rotated. The columnar rotating body 22 is positioned by positioning clips 28 arranged on both sides in the same manner as the coiled rotating body 21. By using the columnar rotating body 22, the shallow groove 8 is covered with the outer peripheral surface while rolling the shallow groove 8, and the shallow groove 8 can be reliably covered. And if protrusion is formed in an outer peripheral surface, it can cover soil more efficiently.

  Next, the swinging means of the sowing pipe will be described. As shown in FIG. 4, the sowing pipe 10 is fixedly suspended from a sowing pipe fixing portion 25 projecting substantially horizontally from the upper cover 23 in the rearward direction of travel, and its discharge port portion 32 is shallow. The groove forming blade 9 is located behind the moving direction. Below the sowing pipe fixing portion 25, a spring member 26 is fixed between the upper cover 23 and the sowing pipe 10, one end is fixed to the upper cover 23 side, and the other end is fixed to the sowing pipe 10 side. Yes.

  When the apparatus main body 1 vibrates, the vibration is propagated from the upper cover 23 to the spring member 26, amplified by the spring member 26, and propagated to the seeding pipe 10. The sowing pipe 10 can swing efficiently with the sowing pipe fixing portion 25 as a fulcrum, and the discharge port portion 32 can be swung so that the soil adhering to the discharge port can be screened off. It can be carried out. Further, since the sowing pipe 10 swings, the material is preferably flexible such as vinyl chloride. Further, the spring member 26 is mounted inside two slidable cylinders, and one of the cylinders is attached to the upper cover 23 and the other cylinder is attached to the seeding pipe 10, whereby the vibration of the spring member 26 proceeds. It is restricted in the direction, so that the sowing pipe 10 swings along the shallow groove 8, and the seed attached to the shallow groove 8 can be screened while soil attached to the discharge port can be screened off.

The perspective view regarding embodiment which concerns on this invention The figure which expanded and showed the example of the grooving member concerning this invention partially The figure which expanded and showed another example of another example of a grooving member concerning the present invention The enlarged view which looked at the embodiment concerning the present invention from the direction of a rotation axis The figure which looked at embodiment which concerns on this invention from the advancing direction The perspective view which shows the example regarding the member for soil covering The perspective view which shows another example regarding the member for soil covering

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Towing wheel 3 Strip groove 4 Groove member 5 Rotating shaft 6 Deep groove 7 Deep groove formation blade 8 Shallow groove 9 Shallow groove formation blade
10 Sowing pipe
11 Hose
12 Covering material
13 Connecting member
13a Connecting support
13b Connecting part
14 Support frame
15 Opposite part
16 Notch
17 Cutting edge
18 Notch
19 Wall
20 畝
21 Coiled rotating body
22 Cylindrical rotating body
23 Top cover
24 Shaft support member
25 Seeding pipe fixing part
26 Spring member
27 Retaining member
28 Positioning clip
28a Shaft fitting
28b Fastening part
29 Mounting part
30 Fixing nut
31 Seed hopper
32 Discharge port

Claims (4)

Groove cutting means for forming a plurality of grooves in cultivated soil, sowing means for sowing a predetermined amount of seeds in each groove formed by the groove cutting means, and covering soil for covering the seeds sowed in each of the grooves in straight播用groove switching and means, the soil covering means includes a plurality of cover soil member for said that each strip is disposed in each groove Rutotomoni wire is rotatably connected to form a coil shape, said A grooving device for direct sowing comprising a connecting member for connecting a soil covering member and being mounted on the apparatus main body so as to be movable up and down. The direct sowing grooving apparatus according to claim 1, wherein the sowing means includes a swinging means for swinging the seed discharge port. The grooving device for direct seeding according to claim 1 or 2, wherein the grooving means is a rotating body whose outer periphery is tapered in a V shape or a U shape. The grooving device for direct seeding according to claim 1 or 2, wherein the grooving means is a rotating body having a plurality of notches at a peripheral edge.

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