Work equipment

Abstract

To provide a work machine that can increase crop yield without increasing the area of ​​the furrows. [Solution] A work machine comprising a tilling unit 4 connected to a traveling vehicle and a rib-forming unit 5 positioned behind the tilling unit 4, characterized in that it is further equipped with a seeding unit 6 for sowing seeds in at least one of the grooves 7M, 7M on both the left and right sides of the rib formed by the rib-forming unit 5, wherein the seeding unit 6 is provided on both the left and right sides of the rib-forming unit 5, and may be positioned further outward from both the left and right ends of the rib-forming unit 5.

Description

Technical Field

[0001] The present invention relates to a working machine capable of forming furrows in a field while cultivating the field.

Background Art

[0002] Such a working machine is provided on a traveling vehicle such as a tractor, and includes a cultivating device that forms furrows in the field while cultivating the field, and a fertilizing simultaneous seeding and mulching device that is connected to the rear of the cultivating device and performs fertilization, seeding, and laying of a mulch film. The fertilizing simultaneous seeding and mulching device forms a sowing groove on the furrow, sows seeds in the formed sowing groove, and then covers the furrow with a mulch film to configure the inside of the sowing groove as a growth space for the seeds.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above configuration, the crops sown and grown in the sowing grooves on the furrows will be harvested. However, in order to increase the yield of the crops, the area of the furrows themselves must be increased. In particular, in a narrow field, it has been difficult to increase the yield of the crops.

[0005] Therefore, an object of the present invention is to provide a working machine that can solve such problems and increase the yield of crops without increasing the area of the furrows.

Means for Solving the Problems

[0006] To achieve the above object, a first invention is a working machine including a cultivating part connected to a traveling vehicle and a furrow forming part arranged behind the cultivating part, The present invention provides a work machine characterized by having a seeding unit that sows seeds in at least one of the grooves on both the left and right sides of the ridge formed by the aforementioned ridge forming unit.

[0007] According to the first invention described above, when a ridge is formed, grooves exist on both the left and right sides of the formed ridge. By effectively utilizing at least one of these grooves (the groove outside the ridge) as a place to sow seeds and grow crops using a sowing unit, the crop yield can be increased without increasing the area of ​​the ridge, compared to the case where seeds are sown only in the ridge and crops are grown there.

[0008] The second invention is, In the work machine, the seeding section is provided on both the left and right sides of the rib-forming section, and is positioned further outward than both the left and right ends of the rib-forming section.

[0009] According to the second invention described above, by sowing seeds on both the left and right sides of the ridge-forming section using seeding sections positioned outward from both ends of the ridge-forming section, the crop yield can be increased compared to growing crops by sowing seeds only on one side of the ridge-forming section.

[0010] The third invention is, In the work machine, the ridge-forming section is configured to allow adjustment of the left-right width of the ridge to be formed. The sowing unit is characterized in that it is positioned so as to be able to change its position in the left-right direction according to the left-right width of the ridge adjusted by the ridge-forming unit.

[0011] According to the third invention described above, the sowing unit can be adapted to ridges of various widths by changing the position of the sowing unit in the left-right direction according to the left-right width of the ridge adjusted by the ridge-forming unit.

[0012] The fourth invention is, The work machine further comprises a mulch laying section that covers the ridges and grooves formed by the ridge forming section with a mulch film, and a compaction member that presses down on the mulch film covering the grooves with the mulch laying section. The seeding section is characterized by being positioned to sow seeds outward in the left-right direction from the compaction member.

[0013] According to the fourth invention described above, by sowing seeds in a location that does not interfere with the spreading of the mulch film covering the ridges or the compaction of the compaction member, the sowing unit sows seeds outward in the left-right direction from the compaction member.

[0014] The fifth invention is, The implement further includes a soil-piling member positioned behind the tilling section, which lifts up the soil tilled by the tilling section, inverts it, and drops it towards the ridge. The seeding unit is configured to sow seeds in front of the soil mounding member. The soil-piling member is characterized by raking up the seeds sown by the seeding unit along with the soil, turning them over, and dropping them towards the ridge.

[0015] According to the fifth invention described above, the soil-piling member lifts up the seeds sown by the seeding unit along with the soil, turns them over, and drops them towards the ridge, thereby allowing the seeds to be sown close to the ridge while efficiently covering them with soil. [Effects of the Invention]

[0016] According to the present invention, by effectively utilizing at least one of the grooves on both the left and right sides (a groove in an area other than a ridge) as a place to sow seeds and grow crops using a sowing unit, it is possible to provide a work machine that can increase the yield of crops without increasing the area of ​​the ridges. [Brief explanation of the drawing]

[0017] [Figure 1] Figure 1 shows a side view of an implement according to an embodiment of the present invention, attached to the rear of a tractor. [Figure 2] Figure 2 is a rear view of the work machine. [Figure 3] Figure 3 is a perspective view of one of the seeding units on the implement, seen from diagonally above. [Figure 4]FIG. 4 is a perspective view of one seeding part as seen from obliquely above to the rear. [Figure 5] FIG. 5 is a perspective view of a main part covering a furrow formed in a field with a multi-film. [Figure 6] FIG. 6 is a schematic view as seen from above showing a state where seeds sown by the seeding part are pushed inward together with soil by a soil-piling member.

MODE FOR CARRYING OUT THE INVENTION

[0018] Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described while referring to the drawings. In the following description, unless otherwise specified, the forward direction of the work vehicle is taken as the front, the reverse direction as the rear, the right side when facing forward as the right, and the left side as the left.

[0019] In FIG. 1, a working machine 2 is connected to a riding tractor 1 as a traveling vehicle. The working machine 2 includes a rotary tilling part 4 connected to the rear part of the tractor 1 via a three-point link mechanism 3, a furrow forming part 5 arranged behind the rotary tilling part 4, and a pair of left and right seeding parts 6, 6 for sowing in the left and right grooves 7M, 7M on both sides of the furrow 7 formed by the furrow forming part 5.

[0020] In this embodiment, the sowing units 6,6 are configured to sow seeds in the furrows 7M,7M on both the left and right sides of the ridge 7, and the implement 2 is not equipped with a sowing unit for sowing seeds on the ridge 7 itself (the top surface and slope of the ridge 7). However, the implement 2 may also be equipped with a sowing unit for sowing seeds on the ridge 7 itself. It is preferable to sow seeds different from those sown on the ridge 7, such as companion plants, banker plants, or green manure, in the furrows 7M,7M on both the left and right sides of the ridge 7 (see Figure 6). By sowing seeds of a different crop in the furrows 7M,7M on both the left and right sides of the ridge 7 and harvesting them in this way, the yield of crops can be increased without increasing the area of ​​the ridge. In addition, by sowing companion plants and banker plants, the yield of the main crop planted in mulch can be increased. Furthermore, sowing green manure seeds can suppress weed growth and nematode reproduction in 7M x 7M trenches, eliminating the need for manual weed removal.

[0021] The rotary tilling unit 4 is equipped with tilling tines 41 (see Figure 2) mounted at intervals in the left-right direction on a rotating shaft (not shown) that extends in the left-right direction. Power from the PTO shaft (not shown) of the tractor 1 is transmitted to the rotating shaft via an electric case (not shown) located on one side of the rotary tilling unit 4, causing the tilling tines 41 to rotate and till the soil of the field.

[0022] Furthermore, the rotary tilling unit 4 is equipped with a rotary cover 42 (see Figures 1 and 5) that covers the top and both sides of the rotating shaft to prevent soil tilled by the tilling tines 41 from scattering.

[0023] As shown in Figure 5, the ridge-forming unit 5 is located at the rear of the rotary tilling unit 4 and comprises a top plate 51 that forms the upper surface of the ridge, and a pair of left and right side plates 52, 52 (only the right side is shown in Figure 5) located on both the left and right sides of the top plate 51. The side plates 52, 52 are inclined so that their lower ends are positioned outward in the left and right directions, so that when the ridge is viewed from the rear, it is formed in a roughly trapezoidal shape. In addition, the side plates 52, 52 are configured to slide in the left and right directions, and the left and right width of the ridge (ridge width) can be changed by changing the left and right position of the side plates 52, 52.

[0024] As shown in Figures 1 and 6, the implement 2 further comprises a mulch laying unit 8 that covers the ridges 7 formed by the ridge forming unit 5 and the grooves 7M, 7M on both the left and right sides of the ridges 7 with mulch film 81A, a pair of left and right compaction members 9, 9 that press down on the mulch film 81A covering the grooves 7M, 7M with the mulch laying unit 8, and a pair of left and right soil-piling members 10, 10 positioned behind the rotary tilling unit 4 that rake up the soil tilled by the rotary tilling unit 4, turn it over, and drop it towards the ridges 7.

[0025] The mulch laying section 8 includes a mulch film roll 81 on which the mulch film 81A is wound in a roll shape and set in a position where its axis is oriented in the left-right direction, and a pressing roller 82 that presses the mulch film 81A unwound from the mulch film roll 81 against the upper surface of the ridge 7. Multiple pressing rollers 82 are provided, spaced apart in the left-right direction and rotatable.

[0026] Each pressing member 9 is composed of a circular roller that can rotate around its axis in the left-right direction, and presses the mulch film 81A on the groove 7M while rotating as the tractor 1 moves.

[0027] The soil-piling member 10 is rotatably supported at the rear of the compaction member 9 and is used to cover the mulch film 81A, which has been pressed onto the groove 7M by the compaction member 9, with soil. The soil-piling member 10 has circular outer circumference with notches 10A cut out in an arc shape at predetermined intervals in the circumferential direction, and is composed of a mortar-shaped disc that protrudes outward in an arc shape, and is configured to rotate in an inclined position (a position intersecting the horizontal direction) where the rear side is positioned inward. As the soil-piling member 10 rotates due to the movement of the tractor 1, it is possible to cover the mulch film 81A with soil by scooping up the soil and dropping it onto the ridge side in an inverted state. At this time, the soil-piling member 10 scoops up the seeds sown by the seeding unit 6 along with the soil and drops it onto the ridge side in an inverted state, so that the seeds can be sown close to the ridge, while efficiently covering the seeds sown on the mulch film 81A with soil.

[0028] As shown in Figure 6, the sowing positions of the sowing units 6, 6 are located in the left-right direction, further outward than both the left and right ends of the rib-forming unit 5 and further outward than the compaction member 9, and in the front-back direction, further back than the rotary tilling unit 4 and further forward than the soil-piling member 10.

[0029] As shown in Figure 4, each seeding unit 6 is equipped with a grounding wheel 61 having multiple lugs 61A in the circumferential direction at the front so as to be rotatable around the left and right axes, a compaction roller 62 at the rear so as to be rotatable around the left and right axes, and a hopper 63 for storing seeds at approximately the center in the front-to-back direction. These components are attached to a frame member 64 which is rectangular in plan view.

[0030] Furthermore, the lower part of the frame member 64, approximately in the front-to-back direction, is provided with a furrowing claw 65, the pointed end of which is pressed into the ground to form a furrow of a certain width, and a soil covering plate 66 attached to the rear of the furrowing claw 65. Seeds are dropped from the sowing unit 6 into the furrow formed by the furrowing claw 65. The furrowing claw 65 and the soil covering plate 66 are not necessarily required and can be omitted.

[0031] As shown in Figure 3, the lower part of the hopper 63 is equipped with a dispensing roll 63K that dispenses a predetermined amount of seeds stored in the hopper 63. Multiple recesses (not shown) are formed at intervals on the outer surface of the dispensing roll 63K. Seeds from the hopper 63 enter each recess, and each time a recess is positioned downward due to the rotation of the dispensing roll 63K, the seeds in the recess fall through an outlet (not shown) at the lower end of the hopper 63 into the furrow grooves formed by the furrowing claws 65. The rotation shaft 61B of the ground wheel 61 and the rotation shaft 63B of the dispensing roll 63K are linked via a chain 19 provided in the chain case 20. As a result, the dispensing roll 63K rotates in conjunction with the rotation of the ground wheel 61, and sowing is performed.

[0032] The compaction roller 62 has a circular outer shape and rotates as the tractor 1 moves, thereby compacting the soil covered by the soil-covering plate 66.

[0033] As shown in Figure 4, the front of the frame member 64 is provided with a pair of left and right support plate portions 64A, 64A that rotatably support both ends of the rotation axis 61B of the ground wheel 61. The support plate portions 64A, 64A are configured in a substantially triangular shape in side view, and a pair of left and right relay members 11, 11 and a mounting member 13 that is slidably fixed to a square pipe 12 with a square cross-sectional shape extending in the left-right direction are connected between the tops of the support plate portions 64A, 64A by a parallel quadruple link mechanism 14.

[0034] The mounting member 13 comprises a pair of left and right first members 131, 131 that are L-shaped in side view and abut against the front and bottom surfaces of the square pipe 12; a second member 132 that extends vertically and abuts against the rear surface of the square pipe 12, with its lower end pivotally connected to the first members 131, 131; a third member 133 that is U-shaped in plan view and abuts against the top surface of the square pipe 12, with its front end pivotally connected to the first members 131, 131 by a pin 135; and a fourth member 134 that is U-shaped in plan view and abuts against both lower sides of the first members 131, 131 and the lower front surface of the second member 132 for reinforcement. The upper end of the second member 132 has a through hole (not shown) through which a bolt 15 can be inserted, and the rear surface of the rear plate portion 133A of the third member 133 is provided with a nut 16 into which the tip of the bolt 15 is screwed. Therefore, by operating the rod-shaped operating part 15B, which rotates the head 15A of the bolt 15, the bolt 15 is tightened, pressing the mounting member 13 against the square pipe 12 and fixing the mounting member 13. By operating the operating part 15B and loosening the bolt 15, the mounting member 13 is allowed to slide longitudinally (left and right) relative to the square pipe 12. As the mounting member 13 slides, the sowing unit 6 moves integrally in the left and right direction. Therefore, as described above, by changing the position of the sowing units 6, 6 in the left and right direction according to the left and right width of the ridge 7 adjusted by the ridge forming unit 5, the sowing units 6, 6 can be adapted to ridges 7 of various widths, and seeds can be suitably sown in the grooves 7M, 7M on both the left and right sides of the ridge 7.

[0035] The parallel quadruple link mechanism 14 comprises two pairs of parallel upper and lower arms 14A and 14B that move up and down relative to the mounting member 13. One end of each pair of upper and lower arms 14A and 14B is pivotally supported on the mounting member 13 so as to be rotatable around the left-right axis, and the other ends of the arms 14A and 14B are pivotally connected to the intermediate members 11 and 11. Of the upper and lower pairs of arms 14A and 14B arranged on the left and right, the longitudinal rear end of the upper arm 14A and the longitudinal front end of the lower arm 14B are connected by a tension coil spring 17, biasing the upper and lower pairs of arms 14A and 14B to swing downward. As a result, the seeding unit 6 is pressed against the ground.

[0036] In this invention, Figure 6 shows the position where seeds are sown by the left and right sowing units 6,6, and the position where the seeds sown by the sowing units 6,6 are moved to the rear of the compaction units 9,9 and at the lower end of the slope 7B of the ridge 7 by the soil-raising members 10,10, which lift the seeds along with the soil and drop them onto the ridge side in an inverted state.

[0037] In this embodiment, while forming ridges, the ridges are covered with mulch film 81A, and seeds are sown in the furrows 7M, 7M on the left and right sides of the ridges using the sowing units 6, 6. A few days after sowing, a transplanter (for example, a vegetable transplanter) travels across the ridges covered with mulch film 81A, creating holes in the mulch film 81A on the ridges for transplanting seedlings (various plants) as they are transplanted into the ridges.

[0038] When transplanting seedlings within two days of sowing, a transplanting method is used in which the left and right wheels of the transplanting machine step over the sown seeds while transplanting the seedlings into the ridges.

[0039] Furthermore, when transplanting seedlings more than three days after sowing, there is a possibility that the seeds have germinated, so a transplanter that can change the tread of the left and right wheels to avoid stepping on the sown seeds (for example, the transplanter described in Japanese Patent Publication No. 2021-159000) is used. Specifically, a transplanting method is used in which the left and right wheels are each widened 5 cm outward in the left and right directions (total tread of 10 cm for both wheels) and the machine is driven in, thereby transplanting the seedlings into the ridges without stepping on the sown seeds.

[0040] The embodiments of the present invention have been described above. The present invention is not limited to the embodiments described above. It goes without saying that modifications can be made as appropriate within the scope of the technical idea.

[0041] In the above embodiment, a ride-on tractor was used as the vehicle, but a walking tiller or the like may also be used.

[0042] Furthermore, in the above embodiment, the seeding unit 6 is provided on both the left and right sides of the rib-forming unit 5, but the seeding unit may be provided only on one side in the left-right direction of the rib-forming unit.

[0043] Furthermore, in the above embodiment, the seeding unit 6 was positioned at a location corresponding to the furrow 7M of the ridge 7. However, the seeding unit 6 may also be positioned in the center of the ridge in the left-right direction, and a guide unit may be provided to guide the seeds falling from the seeding unit 6 to the furrow 7M of the ridge 7.

[0044] Furthermore, in the above embodiment, a mulch laying section 8 is provided for covering the ridges and grooves formed in the ridge forming section 5 with mulch film 81A, but the mulch laying section 8 may be omitted. [Explanation of Symbols]

[0045] 1...Tractor, 2...Implement, 3...3-point linkage mechanism, 4...Rotary tilling section, 5...Ridge forming section, 6...Seed sowing section, 7...Ridge, 7B...Slope, 7M...Furrow, 8...Mulch laying section, 9...Compaction member, 10...Soil mounding member, 10A...Notch section, 11...Intermediate member, 12...Square pipe, 13...Mounting member, 14...Parallel quadruple linkage mechanism, 14A...Upper arm, 14B...Lower arm, 15...Bolt, 15A...Head, 15B...Operating section, 16...Nut, 17...Tension coil spring, 18...Seed, 19...Chain, 20... Chain case, 41...Tilling claws, 42...Rotary cover, 51...Top plate, 52...Side plate, 61...Grounding wheel, 61A...Lug, 61B...Rotating shaft, 62...Compaction roller, 63...Hopper, 63B...Rotating shaft, 63K...Roll, 64...Frame member, 64A...Support plate, 65...Furrowing claws, 66...Soil covering plate, 81...Mulch film roll, 81A...Mulch film, 82...Pressing roller, 131...First member, 132...Second member, 133...Third member, 133A...Rear side plate, 134...Fourth member, 135...Pin

Claims

1. A farming machine comprising a tilling unit connected to a vehicle and a ridging unit positioned behind the tilling unit, An implement characterized by having a seeding unit that sows seeds in at least one of the grooves on both the left and right sides of the ridge formed by the aforementioned ridge-forming unit.

2. The work machine according to claim 1, characterized in that the sowing section is provided on both the left and right sides of the rib-forming section and is positioned further outward than both the left and right ends of the rib-forming section.

3. The aforementioned ridge-forming unit is configured to allow adjustment of the left-right width of the ridge to be formed. The implement according to claim 1, characterized in that the sowing unit is provided so as to be able to change its position in the left-right direction according to the left-right width of the ridge adjusted by the ridge forming unit.

4. The system further comprises a mulch laying section for covering the ridges and grooves formed in the ridge forming section with a mulch film, and a compaction member for pressing down on the mulch film covering the grooves in the mulch laying section. The work machine according to any one of claims 1 to 3, characterized in that the seeding section is arranged to sow seeds outward in the left-right direction from the compaction member.

5. The system further includes a soil-piling member positioned behind the tilling section, which lifts up the soil tilled by the tilling section, turns it over, and drops it towards the ridge. The seeding unit is configured to sow seeds in front of the soil mounding member. The work machine according to any one of claims 1 to 3, characterized in that the soil-raising member scoops up the seeds sown by the sowing unit along with the soil, turns them over, and drops them onto the ridge side.

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