Agricultural machinery
The scraping body with a guide portion in the agricultural machine addresses the issue of excess seed discharge by guiding them back into the storage body, enhancing sowing accuracy.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- MATSUYAMA PLOW MFG CO LTD
- Filing Date
- 2022-12-01
- Publication Date
- 2026-06-17
Smart Images
Figure 0007874871000001 
Figure 0007874871000002 
Figure 0007874871000003
Abstract
Description
Technical Field
[0001] The present invention relates to an agricultural working machine capable of performing an operation of sowing sown materials in a field.
Background Art
[0002] Conventionally, for example, an agricultural working machine (seeder) described in the following Patent Document 1 is known.
[0003] This conventional agricultural working machine includes, for example, a storage body in which sown materials such as seeds and fertilizers are stored, a feeding body having a feeding hole for feeding out the sown materials in the storage body, and a rubbing brush for rubbing out excess sown materials.
Prior Art Documents
Patent Documents
[0004]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0005] However, in the above conventional agricultural working machine, for example, seeds that are excess sown materials may pass through the rubbing brush and be discharged outside the storage body.
[0006] That is, for example, as shown in FIG. 10(a), excess seeds W (W2) overlapping the seeds W (W1) scheduled to be discharged in the feeding hole 102 of the feeding body 101 are pushed by the seeds W (W1) scheduled to be discharged, pass through the rubbing brush 105, and may be discharged outside the storage body 106.
[0007] Also, for example, as shown in FIG. 10(b), excess seeds W (W3) may be pushed by the edge 103 of the feeding hole 102 of the feeding body 101, pass through the rubbing brush 105, and be discharged outside the storage body 106.
[0008] This invention has been made in view of these points, and aims to provide an agricultural machine that can prevent the discharge of excess sown material. [Means for solving the problem]
[0009] The agricultural machine according to the present invention is an agricultural machine capable of sowing seeds in a field, comprising a storage body for storing seeds, a dispensing body having a dispensing hole for dispensing seeds from the storage body, and a scraping body for scraping off excess seeds that overlap the seeds in the dispensing hole, wherein the scraping body has a guide portion for guiding the excess seeds. [Effects of the Invention]
[0010] According to the present invention, it is possible to prevent the discharge of excess seeded material. [Brief explanation of the drawing]
[0011] [Figure 1] This is a side view of an agricultural machine according to the first embodiment of the present invention. [Figure 2] This is a rear view of the seeding section of the same agricultural machine. [Figure 3] This is a rear view of the seeding device in the same seeding section. [Figure 4] This is a partial cross-sectional view of the rear of the same seeding apparatus. [Figure 5] This is a partial cross-sectional view of the same seeding apparatus. [Figure 6] (a) and (b) are partial plan views of the same seeding apparatus. [Figure 7] (a) and (b) are diagrams showing a scraping plate, with (a) being a perspective view and (b) being a plan view. [Figure 8] This is a partial plan view of a seeding device for an agricultural machine according to a second embodiment of the present invention. [Figure 9] This is a partial plan view of a seeding device for an agricultural machine according to a third embodiment of the present invention. [Figure 10] (a) and (b) are explanatory diagrams of a conventional seeding device.
Best Mode for Carrying Out the Invention
[0012] The first embodiment of the present invention will be described with reference to FIGS. 1 to 7.
[0013] In FIG. 1, reference numeral 1 denotes an agricultural working machine. This agricultural working machine 1 is connected to the rear part of a tractor (not shown), which is a traveling vehicle for example, and performs agricultural work, that is, for example, tilling and seeding work while moving forward (traveling direction) in a field by the travel of the tractor. It is a seeding machine.
[0014] That is, the agricultural working machine 1 is capable of performing a seeding operation, which is an operation of sowing a seeded object, that is, for example, spherical granular seeds (for example, soybeans, etc.) W in a field such as a field.
[0015] And as shown in FIG. 1, the agricultural working machine 1 includes a tilling and soil preparation part (rotary part) 2 detachably connected to the rear part of the tractor, and a multi-row seeding part 4 attached to the tilling and soil preparation part 2 via an attachment part 3.
[0016] The tilling and soil preparation part 2, which is the front working part, includes a machine body 6 detachably connected to the three-point link part at the rear part of the tractor, a tilling body 7 rotatably provided on the machine body 6 and performing tilling work while rotating in a predetermined direction by power from the tractor side, and a soil leveling body 8 provided on the machine body 6 so as to be rotatable in the vertical direction and performing soil leveling work behind the tilling body 7. Note that the ground pressure of the soil leveling body 8 against the field surface can be adjusted by an adjusting means 9 for the soil leveling body.
[0017] The seeding part 4, which is the rear working part, includes a plurality (for example, four) of seeding devices 11 arranged in the left-right direction, and a driving device 12 that drives these plurality of seeding devices 11 simultaneously, as also shown in FIGS. 2 to 6 and the like.
[0018] Each seeding device 11 includes a groove forming body 16 that forms sowing grooves on the field surface after tillage by the tillage and soil preparation unit 2, a seeding means 17 that sows seeds W into the sowing grooves, an earth moving body 18 that moves soil to fill back the sowing grooves, a compaction wheel 19 that compacts the soil, and a scraper 20 that removes the soil adhering to the compaction wheel 19. The groove forming body 16 is composed of, for example, a pair of left and right groove forming plates 15 having a disk shape.
[0019] And the seeding means (seeding means for sowing the sown objects into the sowing grooves of the field) 17 includes a container-shaped storage body (hopper) 22 into which a predetermined amount of seeds W, which are the sown objects, are input from a seed input port 21 with an upper surface opening and stored inside, a lid body 23 that closes the seed input port 21 of the storage body 22 in an openable and closable manner, and a rotatable feeding body (hole roll type feeding roll) 25 that sequentially feeds out the seeds W in the storage body 22 while rotating in a predetermined direction by the power from the driving device 12.
[0020] Further, the seeding means 17 includes a cylindrical guide body 27 that receives the seeds W discharged from a seed discharge port 26, which is a lower surface opening of the storage body 22, guides them downward, and supplies them into the sowing grooves of the field. The lower part of this guide body 27 is located between both groove forming plates 15 of the groove forming body 16. And the seeds W that have fallen from a seed dropping port 28 at the lower end of the guide body 27 are sown into the sowing grooves through between both groove forming plates 15.
[0021] Furthermore, the seeding means 17 includes a rubbing and cutting plate 30, which is a plate-shaped member that rubs and cuts excess seeds W that overlap and contact the seeds W in the feeding hole part (hole part) 51 of the feeding body 25 inside the storage body 22.
[0022] This rubbing and cutting plate 30 is a plate-shaped member that rubs and cuts the excess seeds W that have mounted on the seeds W in the feeding hole part 51 of the feeding body 25 so that only the seeds (sown objects scheduled to be discharged in the hole part) W scheduled to be fed out that have entered the feeding hole part 51 of the feeding body 25 are discharged outside the storage body 22 and sown into the sowing grooves (see FIG. 7).
[0023] The storage unit 22 has a storage body 31 at the top that can store a predetermined amount of seeds W inside, and a dispensing body storage unit 32 at the bottom, in which the dispensing body 25 is stored so that it can be put in and taken out. The dispensing body storage unit 32 has a dispensing body retaining member 35 which is detachably attached to the storage body 31 by, for example, a plurality of screws 33, and the dispensing body 25 can be removed from inside the dispensing body storage unit 32 by removing this dispensing body retaining member 35.
[0024] Furthermore, a rotating shaft (e.g., a hexagonal shaft) 41 of the drive device 12, which extends in the left-right direction, is removably inserted through the dispensing body 25 and the storage body 22. This rotating shaft 41 is fitted into a dispensing body mounting part 40 located inside the dispensing body storage part 32, and this dispensing body mounting part 40 rotates together with the rotating shaft 41. The dispensing body 25 is also removably attached to this dispensing body mounting part 40 with mounting bolts (mounting fixtures) 39.
[0025] During field work, the rotating shaft 41 of the drive unit 12 rotates together with the dispensing body 25 by power from a power transmission member 43 that moves in conjunction with the rotation of the grounding wheels 42 that are in contact with the field surface. As a result, the seeds W in the storage body 22 are dispensed and discharged outside the storage body 22 and fall into the planting furrow. The ground pressure of the grounding wheels 42 on the field surface can be adjusted by an adjustment means 44 for the grounding wheels. The storage body 22 also has an opening 45 that opens toward the front. The cutting plate 30 can be inserted into and removed from the storage body 22 through this opening 45.
[0026] The dispensing body 25 is, for example, cylindrical in shape, and multiple rows of dispensing holes 51 are formed on the outer circumference of the dispensing body 25 to dispense the seeds W inside the storage body 22 when the dispensing body 25 rotates.
[0027] In other words, for example, on the outer circumferential surface of a cylindrical dispensing body 25 having an axial direction in the left-right direction, there are a plurality (for example, 8) of dispensing holes 51 recessed at equal intervals from each other in the circumferential direction, which is the rotational direction of the dispensing body 25.
[0028] Each dispensing hole 51 is formed in a mortar-like shape, large enough to accommodate a predetermined number of seeds W to be dispensed, i.e., just one seed. In other words, each dispensing hole 51 is formed in a shape corresponding to a single spherical seed W.
[0029] As shown in Figures 5 to 7, the scraping plate 30 is formed in the shape of a single bent plate from, for example, an elastically deformable synthetic resin (it may also be metal, etc.). The scraping plate 30 has a substantially rectangular mounting plate portion 61 and a guide plate portion 62 which is integrally connected to the end of the mounting plate portion 61 and is positioned bent at substantially a right angle to the mounting plate portion 61.
[0030] The mounting plate portion 61 has an elongated mounting hole 66 that opens toward the front. The mounting plate portion 61 is attached to the mounting portion 70 of the storage body 22 in a way that allows for attachment, removal, and adjustment of its front-to-back position by screwing a nut 68 onto a bolt 67 inserted into the mounting hole 66.
[0031] In other words, by using mounting means 69 consisting of, for example, bolts 67 and nuts 68, the mounting plate portion 61 is positioned and attached to the mounting portion 70 of the storage body 22 at a desired position such that the lower surface of the tip side of the guide plate portion 62 contacts (sliding) the outer surface of the dispensing body 25.
[0032] Furthermore, as is clear from Figure 5, the flat mounting plate portion 61 is arranged in a sloping manner, higher at the front and lower at the rear, along the lower surface of the mounting portion 70 of the storage body 22, and a bent plate-shaped guide plate portion 62 protrudes diagonally upward and backward from the rear end of the mounting plate portion 61. In addition, the guide plate portion 62 is bent along a left-right bending curve 65 so that the rear end (guide end), which is the leading edge, approaches the outer peripheral surface of the upper part of the dispensing body 25.
[0033] The guide plate portion 62 has a roughly trapezoidal notch (space) 71 that opens toward the rear. The guide plate portion 62 also has a number of guide ends 72 at its rear end (front end) that guide excess seeds W that overlap the seeds W in the dispensing hole 51 of the dispensing body 25 toward the side (including diagonally forward and sideways) to prevent the excess seeds W from being discharged outside the storage body 22.
[0034] In other words, a pair of inward-facing guide ends 72, which are spaced apart from each other via the notch 71 and form a V-shape in plan view, are formed in an inclined manner on the rear end surface of the guide plate portion 62, which is the end opposite to the mounting plate portion 61. The two guide ends 72 are connected by a connecting end 73, which is composed of a straight surface 74 that is longitudinal in the left-right direction.
[0035] Furthermore, the guide end 72 is formed inclined (including curved) with respect to the direction of movement (forward) of the seeds W in the dispensing hole 51 of the dispensing body 25 when viewed from above. Therefore, the guide end 72 primarily guides any excess seeds W that overlap the seeds W in the dispensing hole 51 when viewed from above toward the front and side (see Figure 6(a)).
[0036] However, excess seeds W may not be guided by the guide end 72 and may move forward together with the seeds W in the dispensing hole 51, and ride up onto the guide plate portion 62 (see Figure 6(b)).
[0037] Here, as shown in Figure 7, the guide end 72 is composed of a longitudinal straight surface 76 located along a direction that is inclined laterally with a predetermined inclination angle α relative to the front-rear direction in a plan view, and a curved surface 77 that connects this straight surface 76 with the straight surface 74 of the connecting end 73.
[0038] The predetermined inclination angle α is, for example, less than 90 degrees, and preferably approximately 30 degrees. Furthermore, the straight surface 76 of the guide end 72 is formed on the inner surface (the surface facing the notch 71) of the triangular portion 78 located behind the fold curve 65 of the guide plate portion 62. In addition, the curved surface 77 of the guide end 72 and the straight surface 74 of the connecting end 73 are formed on the rear surface (the surface facing the notch 71) of the longitudinal portion 79 located in front of the fold curve 65 of the guide plate portion 62.
[0039] Next, we will explain the operation of agricultural machine 1.
[0040] As the tractor moves, the agricultural implement 1 is moved forward in the direction of travel, the tilling and leveling unit 2 performs tilling and leveling work, and behind it, the seeding unit 4 performs seeding work.
[0041] In other words, in the seeding unit 4, the dispensing bodies 25 of the seeding means 17 of multiple (for example, four) seeding devices 11 arranged in the left-right direction dispensing the seeds W from the storage unit 22 while rotating in a predetermined rotational direction, and these dispensed seeds W discharged outside the storage unit 22 are sown in the seeding furrows of the field.
[0042] Specifically, the seeds W inside the storage unit 22 enter the dispensing holes 51 of the rotating dispensing unit 25. These entered seeds W, i.e., the seeds W intended for discharge from the dispensing holes 51, pass in close proximity to the scraping plate 30 without coming into contact with it. After passing through, they are released by their own weight from the dispensing holes 51 and fall out of the storage unit 22, where they are sown in the sowing furrows of the field.
[0043] Here, as shown in Figure 5, excess seeds W(W2, W3) that overlap with and come into contact with the seed W(W1) to be discharged in the dispensing hole 51 are scraped off by the scraping plate 30, separating them from the seed W(W1) to be discharged and remaining inside the storage body 22. As a result, the excess seeds W(W2, W3) are not discharged outside the storage body 22, and only the seed W(W1) to be discharged is discharged outside the storage body 22.
[0044] In other words, even if the excess seeds W(W2) are pushed by the seeds W(W1) that are to be discharged, as shown in Figure 6(a), they come into contact with the guide end 72 of the guide plate portion 62 of the scraping plate 30 and are guided diagonally forward and to the side (in a direction of inclination relative to the direction of movement of the seeds to be discharged in a plan view), and remain inside the storage body 22. To put it another way, the excess seeds W(W2) that are on top of the seeds W(W1) that are to be discharged come into contact with the guide end 72 and their direction of movement (direction of being pushed) changes, causing them to remain inside the storage body 22.
[0045] Furthermore, as shown in Figure 6(b), there are cases where excess seeds W(W2) move forward and ride up onto the guide plate portion 62 of the scraping plate 30. In this case, the guide end portion 72 comes into contact with the lower part of the excess seeds W(W2), and this contact lifts the excess seeds W(W2) and moves them from the seeds W(W1) to be discharged onto the guide plate portion 62.
[0046] The same applies to excess seeds W(W3). Even if these seeds W(W3) are pushed by the edge 52 of the dispensing hole 51, they come into contact with the guide end 72 of the guide plate portion 62 of the scraping plate 30 and are guided diagonally forward and sideways, remaining inside the storage body 22. Furthermore, by riding up onto the guide plate portion 62 of the scraping plate 30, the excess seed material (seeds W) is prevented from being discharged.
[0047] Figures 6(a) and (b) illustrate the situation when the excess seeds W come into contact with the left guide end 72, but the same is true when the excess seeds W come into contact with the right guide end 72.
[0048] Furthermore, according to the above-described agricultural machine 1, the dispensing body 25 is equipped with a plate-shaped scraping plate 30 that scrapes off excess seeds W that overlap with and come into contact with the seeds W to be discharged in the dispensing hole 51, and since this scraping plate 30 has a guide end 72 for preventing discharge that guides the excess seeds W, it is possible to properly prevent the excess seeds W from being discharged outside the storage body 22, thereby eliminating the discharge of excess seeds W and improving the accuracy of sowing.
[0049] Furthermore, since the guide end 72 of the scraping plate 30 is formed inclined with respect to the direction of movement of the seeds W in the dispensing hole 51 of the dispensing body 25 (the direction along the front-rear direction) when viewed from above, excess seeds W can be guided to the side, and the discharge of excess seeds W outside the storage body 22 can be prevented more effectively.
[0050] Furthermore, the scraping plate 30 has a mounting plate portion 61 and a guide plate portion 62 connected to the mounting plate portion 61, and the guide end portion 72 is formed at the end of the guide plate portion 62 opposite to the mounting plate portion 61. Therefore, despite its simple configuration, it can effectively prevent excess seeds W from being discharged outside the storage body 22.
[0051] In the first embodiment described above, the scraping plate 30 was described as having an inward-facing guide end 72 that forms a V-shape in plan view. However, it may also be configured to have an outward-facing guide end 72 that forms an inverted V-shape in plan view, as shown in the second embodiment in Figure 8. In other words, the scraping plate 30 shown in Figure 8 has a mountain-shaped guide plate portion 62, and two guide end 72 are formed in an inclined manner at the rear end of this guide plate portion 62, one on the left and one on the right.
[0052] Furthermore, the scraping plate 30 may be configured such that only one guide end 72 is formed in an inclined shape at the rear end of the guide plate portion 62, as in the third embodiment shown in Figure 9. Although the guide end 72 shown in Figure 9 is composed only of a straight surface 76 that extends from one end to the other in the width direction of the scraping plate 30, it may also be composed of a straight surface and a curved surface, or a curved surface only, for example, although not shown. In other words, the guide portion of the scraping body may consist of a straight surface and a curved surface, a straight surface only, a curved surface only, and so on.
[0053] On the other hand, the guide portion of the scraping body may be formed, for example, perpendicular to the direction of movement of the material to be seeded within the dispensing hole when viewed from above.
[0054] Furthermore, the scraping body is not limited to being formed in a plate shape; it may be in any other shape, and its shape is arbitrary.
[0055] Furthermore, while the description of agricultural machinery has included a tilling and leveling unit and a seeding unit, other types of machinery, such as no-till seeders that do not have a tilling and leveling unit, are also acceptable.
[0056] Furthermore, the material sown in the field can be anything other than seeds, such as fertilizers or pesticides, and the type is arbitrary.
[0057] Furthermore, the drive device for rotating the feed body is not limited to one that uses ground wheels that rotate in accordance with the movement of the tractor, but may also use a drive source such as a motor, in which case the drive source can be connected to the end of the rotating shaft, for example.
[0058] Furthermore, the number and shape of the holes for dispensing the feed mechanism are also arbitrary. [Explanation of Symbols]
[0059] 1 Agricultural machinery 22 storage compartments 25 Dispenser 30. A scraping plate, which is a scraping body. 51 Feeding hole 61 Mounting plate section 62 Information board part 72 Guide end section W is the seed that is sown.
Claims
1. An agricultural machine capable of sowing seeds in a field, A storage unit in which the seeded material is stored, A dispensing body having a dispensing hole for dispensing the material to be sown from the storage body, The device comprises a scraping body that scrapes off excess seeded material that rests on top of the seeded material in the dispensing hole, The scraping body has a guide portion for guiding the excess seeded material, and is a scraping plate formed in a plate shape. The aforementioned scraping plate is Mounting plate section, It has a guide plate portion provided at the rear end of the mounting plate portion and protruding diagonally upward and rearward from the rear end of the mounting plate portion, The guide portion is formed at the end of the guide plate portion opposite to the mounting plate portion. A farming machine characterized by the following features.
2. An agricultural machine capable of sowing seeds in a field, A storage unit in which the seeded material is stored, A dispensing body having a dispensing hole for dispensing the material to be sown from the storage body, The device comprises a scraping body for scraping off excess seed material that overlaps with the seed material in the aforementioned dispensing hole, The scraping body has a guide portion for guiding the excess seeded material, The guide portion is formed inclined with respect to the direction of movement of the seeded material within the dispensing hole portion when viewed from above. A farming machine characterized by the following features.
3. The guide section guides the excess seedlings toward the side. The agricultural implement according to claim 1 or 2.
4. The scraping body is a scraping plate formed in the shape of a plate, The aforementioned scraping plate is Mounting plate section, It has a guide plate portion provided at the rear end of the mounting plate portion and protruding diagonally upward and rearward from the rear end of the mounting plate portion, The guide portion is formed at the end of the guide plate portion opposite to the mounting plate portion. The agricultural implement according to feature 2.
5. The guide plate portion is bent along a left-right bending curve so that the guide portion approaches the outer peripheral surface of the upper part of the dispensing body. The agricultural implement according to feature 1 or 4.
6. The aforementioned mounting plate portion is detachably attached to the mounting portion of the storage unit. The agricultural implement according to feature 1 or 4.
7. The scraping body has only one guide portion. The agricultural implement according to claim 1 or 2.