JP6422178B2 - Agricultural machine - Google Patents

Description

  The present invention relates to an agricultural machine capable of performing fertilization sowing work and sowing work.

  DESCRIPTION OF RELATED ART Conventionally, the agricultural working machine described in the following patent document 1, for example is known.

  This conventional agricultural machine has, for example, a tank main body having a bottom plate portion in which a fertilizer dropping opening and a seed dropping opening are formed, and a fertilizer storage section is formed on the fertilizer dropping opening side (front side) by partitioning the inside of the tank main body. And a partition member that forms a seed storage portion on the drop opening side (rear side).

  When fertilizing and sowing work is performed, the fertilizer is stored in the fertilizer storage section and the seed is stored in the seed storage section, and the fertilizer and seed are fed from the tank body by each feeding means and sown in the field.

Japanese Utility Model Publication No. 2-26410

  However, in the conventional farm work machine, for example, in the sowing work for sowing only seeds, the fertilizer storage unit is emptied, and the seeds are stored only in the seed storage unit for the sowing operation. For this reason, for example, the frequency of replenishing seeds to the seed storage unit is high, which may be a heavy burden on the operator.

  This invention is made | formed in view of such a point, and it aims at providing the agricultural machine which can reduce a worker's burden.

請 Motomeko 1 agricultural machine according is an agricultural machine which can perform fertilizer sowing work and seeding operations, a tank body having a bottom plate portion fertilizer chute and seed dropping port is formed, the tank body Partitioning the inside, forming a fertilizer storage portion on the fertilizer drop opening side and forming a seed storage portion communicating with the fertilizer storage portion on the seed drop opening side through a communication opening, and fertilizing sowing When performing the work, the first partition body that is positioned so as to cover the communication opening and makes the fertilizer storage part and the seed storage part in a non-communication state is used. A second partition that is positioned so as to cover the fertilizer dropping port and enables the fertilizer storage part to be used as a part of the seed storage part is used, and the first partition includes fertilizer. It is guided toward the fertilizer fall opening Has a sloped seed guide surface of the inclined fertilizer guide surface and seed guiding toward the seed chute, said second partition member is slanted seeds seeds toward the seed chute guides It has a guide surface.

The agricultural machine according to claim 2 is the agricultural machine according to claim 1 , wherein the bottom plate portion of the tank body is configured by an inclined bottom plate that is inclined downward toward the fertilizer dropping port and the seed dropping port.

Agricultural machine according to claim 3, wherein, in claim 1 or 2 agricultural machine described in the tank body has a partition member mounting portion, the first partition member in the case of the fertilizer sowing work the partition member mounting portion When the seeding operation is performed, the second partition is detachably attached to the partition attachment part.

The farm machine according to claim 4 is the farm machine according to any one of claims 1 to 3 , wherein a capacity of the fertilizer storage unit is larger than a capacity of the seed storage unit.

  According to the present invention, since the fertilizer storage part can be used as a part of the seed storage part when performing the sowing work, the burden on the operator can be reduced.

It is a side view of the agricultural working machine which concerns on one embodiment of this invention. It is a top view of an agricultural working machine same as the above. It is side view sectional drawing of the tank part of an agricultural working machine same as the above. It is a partially notched perspective view of a tank part same as the above. It is a principal part perspective view of the state before attaching a partition. It is a principal part perspective view of the state (at the time of fertilization sowing work) which attached the 1st partition. It is a principal part perspective view of the state (at the time of sowing work) which attached the 2nd partition. It is explanatory drawing of a fertilizer and a seed delivery means. It is a side view which shows a cover body, (a) is a figure of the closed state of a cover body, (b) is a figure of the open state of a cover body.

  An embodiment of the present invention will be described with reference to FIGS.

  1 and 2, reference numeral 1 denotes an agricultural machine. The agricultural machine 1 is connected to a rear portion of a tractor (not shown) that is, for example, a traveling vehicle, and the field is moved forward (traveling direction) by forward traveling of the tractor. It is a multi-row no-tillage sowing machine that performs farming (fertilizing and sowing work) while moving.

  That is, the farm work machine 1 can selectively perform a fertilization seeding operation for sowing both fertilizer and seeds in a field and a seeding operation for sowing only seeds in a field. In other words, the agricultural working machine 1 performs a fertilization and sowing operation in which a fertilizer and seeds are simultaneously sown, or performs a sowing operation in which seeds are sown without sowing fertilizer.

  The farm work machine 1 includes a machine body 2 that is detachably connected to a three-point link part (a farm work machine lifting part) at the rear of the tractor. An input shaft 4 in the front-rear direction is rotatably provided on the shaft support portion 3 at the center in the left-right direction at the front portion of the body 2. The input shaft 4 is connected to the PTO shaft at the rear of the tractor via a transmission joint.

  Groove forming means 6 for forming linear seeding grooves along the traveling direction in the farm field are provided at a plurality of positions spaced in the left-right direction in the front portion of the machine body 2.

  Each groove forming means 6 has a chain case 7 that is a transmission case that can be rotated in the vertical direction, and the lower end of the chain case 7 is rotated in a predetermined direction by power from the input shaft 4 side. A disc-shaped groove forming disk 8 is formed so as to be rotatable.

  A grooved disk cover 9 is disposed above the grooved disk 8, and a grounding ring 10 for setting a groove depth is disposed on the side of the grooved disk 8. The grounding wheel 10 rotates in a predetermined direction by a force received from the field side while being in contact with the field.

  Further, the agricultural machine 1 squeezes the sowing means 11 sowing the seed in the sowing groove formed in the field by the groove forming means 6 and the covering soil covering the sowing seed sowed by the sowing means 11. Soil removal means for scraping and removing the soil attached to the outer circumferential surface of the pressure wheel 12 and dropping the removed soil near the front of the pressure wheel 12 so as to be used as covering soil for the seeded material. 13 and. The seeds to be sown by the sowing means (fertilization / seeding machine) 11 are fertilizers and seeds at the time of the fertilization sowing work, and seeds at the time of the sowing work.

  Each pressure-reducing wheel 12 has a pair of left and right pressure-reducing wheel members 16 positioned in a V shape (including a substantially V-shape) when viewed from the front. The cover soil made of fine soil removed from the outer peripheral surface of the pressure reducing wheel 12 is pressed and pressed while rotating in a predetermined direction by the force received from the field side independently from the left and right.

  Both the pressure-reducing wheel members 16 are composed of, for example, a plate-like member, and are arranged in a V-shape when viewed from the front with at least the upper sides being spaced apart from each other, and there is a slight gap between the lower portions. Each pressure-reducing wheel member 16 is rotatably attached to the lower end portion of the pressure-reducing wheel mounting arm 17 via a shaft 18 inclined with respect to the left-right direction.

  Each pressure-reducing wheel member 16 includes a disk-shaped disk portion 19 that rotates about an inclined shaft (inclined shaft) 18 and an outer peripheral end that is integrally connected to the outer peripheral end of the disk portion 19. And a frusto-conical frusto-conical plate portion 20 that gradually increases in diameter toward the front.

  The disk portion 19 is formed with four fan-shaped through holes 21 for weight reduction and the like. On the outer end side of the truncated conical plate portion 20, a plurality of triangular anti-slip notches 22 arranged in the circumferential direction of the pressure reducing wheel member 16 at intervals (for example, at equal intervals) are formed. Each notch 22 is formed, for example, in a triangular shape from the outer end to the inner end side of the truncated conical plate portion 20, and the apex of the triangular notch 22 is the center in the width direction of the truncated conical plate portion 20. It is located on the outer end side. Then, the covering soil for the seed is pressed down on the outer peripheral surface of the truncated conical plate portion 20 and pressed into a mountain-shaped cross section.

  In addition, a plate-shaped soil entry prevention body (guard) 23 for preventing soil from entering between the disk portions 19 that are spaced apart from each other is disposed in front of the pressure reducing wheel 12. The pressure-reducing wheel mounting arm 17 can be rotated in the vertical direction around the rotation fulcrum 24, and the vertical position of the pressure-reducing wheel 12 can be adjusted by the adjusting means 25.

  On the other hand, each soil removing means 13 has a scraper 26 which is a pair of left and right rectangular plate-shaped soil removers positioned facing each other, and the frusto-conical plate portion of the pressure reducing wheel 12 by these scrapers 26. The soil scraped and removed from the outer peripheral surface of 20 falls to the front of the central portion in the left-right direction of the pressure wheel 12.

  That is, the fine soil scraped off by the pair of left and right scrapers 26 is directed toward each other so as to go to the sowing grooves in the field (in a direction inclined to the sowing groove side with respect to the front-rear direction in plan view). As a result, the sowing groove fills and rises as a desired amount of soil covering the seeds (seed, fertilizer). Then, the raised covering soil (the soil adhering to the pressure wheel 12) is pressed down by the pressure wheel 12 and pressed into a mountain shape.

  Each scraper 26 is detachably attached to both ends of the scraper mounting plate 27 in the left-right direction. The scraper mounting plate 27 is fixed to the lower surface of the intermediate portion in the longitudinal direction of the pressure reducing wheel mounting arm 17.

  Further, each scraper 26 is made of, for example, a metal plate bent at one intermediate position, and is integrally formed with a mounting plate portion 28 attached to the scraper mounting plate 27 and a rear end portion of the mounting plate portion 28. And a soil removal plate 29 having a forward and downward inclined shape. The free end portion, which is the rear end portion of the soil removing plate portion 29, comes into linear contact (sliding contact) with the upper front portion of the outer peripheral surface of the truncated conical plate portion 20 of the pressure reducing wheel member 16. 30.

  Here, the seeding means 11 includes a tank unit (tank device) 31 in which the seeded material is stored, and a seeding disk 32 that drops the seeded material from the tank unit 31 into a seeding groove in the field. Yes.

  As shown in FIGS. 3 to 9, the tank unit 31 includes a box-shaped tank body 33 that is attached to the tank mounting frame 40 of the airframe 2 and has a left-right longitudinal shape and an upper surface opening shape, and the tank body 33. And a lid 34 that opens and closes the upper surface opening 35 of the above. In addition, the tank main body 33 is a thing of the left-right direction longitudinal shape located from the left-right direction one end to the other end of the farm work machine 1, and the left-right direction length dimension of the tank main body 33 becomes the approximate machine width of the farm work machine 1 ( (See FIG. 2).

  The tank body 33 is formed with a fertilizer dropping port 41 as a fertilizer outlet at a plurality of front sides (for example, 8 locations) and a seed dropping port 42 as a seed outlet is formed at a plurality of rear locations (for example, 8 locations). The bottom plate portion 43 is provided. A front plate 44 is erected at the front end of the bottom plate 43, a rear plate 45 is erected at the rear end of the bottom plate 43, and side plates 46 are erected at the left and right ends of the bottom plate 43. Has been.

  The bottom plate portion 43 includes a plurality of inclined bottom plates 48 that are inclined downward toward the fertilizer dropping port 41 and the seed dropping port 42. That is, the bottom plate portion 43 is composed of a plurality of pairs (e.g., 8 pairs) of inclined bottom plates 48 arranged in the left-right direction, and both the inclined bottom plates 48 forming the left-right pair are arranged in a V shape in front view, and the lower end side thereof A fertilizer dropping port 41 and a seed dropping port 42 are formed in the front and rear sides, respectively.

  Further, between the central portions of the both inclined bottom plates 48, a partition mounting portion 50 having a left and right longitudinal shape that is inverted V-shaped in a side view is installed. Each partition mounting portion 50 includes a first mounting plate 51 having a front descending slope and a second mounting plate 52 having a rear descending slope, and upper ends of these mounting plates 51 and 52 are connected to each other. . A nut 53 is fixed to the lower surface of each mounting plate 51, 52 by welding or the like, and a bolt hole 54 is formed at a position corresponding to the nut 53 in each mounting plate 51, 52. The partition attachment portion 50 is disposed at a center position in the front-rear direction (including a substantially center position) in the vicinity of the bottom portion in the tank body 33.

  The tank unit 31 partitions the inside of the tank main body 33 (internal space of the tank main body 33), forms a fertilizer storage part (fertilizer storage space) 56 on the front side that is the fertilizer drop port 41 side, and a seed drop port 42. The rear wall, which is the side, is provided with a partition wall 60 that is a plate-like partition member along the vertical direction that forms a seed storage portion (seed storage space) 57 that communicates with the fertilizer storage portion 56 via the communication opening 58. .

  The partition wall 60 is attached to the tank body 33 so as to be located slightly behind the center position in the front-rear direction in the tank body 33. For this reason, the capacity of the front fertilizer storage section 56 is larger than the capacity of the rear seed storage section 57, and is, for example, twice or more (for example, approximately twice) the capacity of the seed storage section 57.

  The lower end portion of the partition wall 60 is formed in a zigzag shape, and a front surface that communicates the fertilizer storage portion 56 and the seed storage portion 57 between the lower end portion of the partition wall 60 and the bottom plate portion 43 of the tank body 33. A rhomboid-shaped communication opening 58 exists. That is, the tank body 33 is partitioned by the partition wall 60 that is an intermediate partition plate, so that the fertilizer storage portion 56 and the seed storage portion 57 that are in communication with each other through the communication opening 58 are formed.

  Then, as shown in FIG. 6, when performing fertilization sowing work in which both fertilizer and seed are sown in the field, the fertilizer storage portion 56 and the seed are positioned at the bottom in the tank body 33 so as to cover the communication opening 58. A first partition 61 which is a plate-like partition that brings the storage portion 57 into a non-communication state is used.

  That is, when performing fertilization sowing work, a plurality of (e.g., eight) first partition members 61 are attached to and detached from the first mounting plate 51 of the partition member mounting portion 50 by screwing the bolt 55 and the nut 53. Installed as possible.

  The first partition 61 is in contact with the front surface of the partition wall 60 and has a rectangular vertical plate portion 62 positioned along the vertical direction, and protrudes obliquely downward from the vertical middle portion of the vertical plate portion 62. And a substantially triangular front inclined plate portion 63 projecting from the lower end portion of the vertical plate portion 62 obliquely rearward and downward.

  Further, the upper surface of the front inclined plate portion 63 serves as a fertilizer guide surface 66 with a gentle downward slope that guides the fertilizer in the fertilizer storage portion 56 toward the fertilizer dropping port 41 of the bottom plate portion 43. Further, the upper surface of the rear inclined plate part 64 is a seed guide surface 67 having a steep and downwardly inclined shape that guides the seeds of the seed storage unit 57 toward the seed dropping port 42 of the bottom plate part 43.

  Further, as shown in FIG. 7, when performing seeding work in which only seeds are sown in the field, the fertilizer storage unit 56 is located at the bottom in the tank body 33 so as to cover the fertilizer dropping port 41 and the seed storage unit 57. A second partition 71 is used which is a plate-like partition that can be used as a part (extended portion) of the first partition.

  That is, when seeding work is performed, a plurality of (for example, eight) second partition bodies 71 can be attached to and detached from the second mounting plate 52 of the partition body mounting portion 50 by screwing the bolts 55 and the nuts 53. Attached to. That is, in the seeding operation, a second partition 71 different from the first partition 61 is attached to the partition attachment portion 50 instead of the first partition 61.

  The second partition 71 is composed only of a substantially triangular inclined plate portion 72 whose upper end portion is in contact with the front plate portion 44 and is positioned in a rearward downward inclined manner above the fertilizer dropping port 41. The upper surface of the inclined plate portion 72 serves as a seed guide surface 73 having a gentle downward slope and a downwardly inclined shape for guiding the seeds stored in the fertilizer storage portion 56 toward the seed drop opening 42 on the seed storage portion 57 side. Yes.

  Further, the tank unit 31 is provided with a fertilizer feeding means 76 for feeding the fertilizer located below the fertilizer dropping opening 41 and a seed feeding means 77 for feeding the seed located below the seed dropping opening 42.

  The fertilizer feeding means 76 has a fertilizer feeding roll 82 in which a fertilizer feeding groove 81 is formed. The fertilizer feeding roll 82 is attached to a rotary shaft 83, and a drive motor which is a drive source at an end of the rotary shaft 83 (Not shown) is connected.

  Then, the slide member 86 slides along the fertilizer feeding groove 81 based on the rotation operation of the groove width adjustment dial 85 screwed into the screw portion 84 of the rotary shaft 83, so that the fertilizer outlet of the fertilizer guide tube 87 is obtained. The amount of fertilizer discharged from 88 is adjusted (see FIG. 8). The fertilizer guide tube 87 is provided with an upper end portion of a flexible fertilizer guide hose 89 that guides the fertilizer toward the sowing disk 32 (see FIG. 1).

  Similarly, the seed feeding means 77 has a seed feeding roll 92 in which a seed feeding groove 91 is formed. The seed feeding roll 92 is attached to the rotary shaft 93, and a drive source is provided at the end of the rotary shaft 93. A drive motor (not shown) is connected.

  Then, the slide member 96 slides along the seed feeding groove 91 on the basis of the rotation operation of the groove width adjustment dial 95 screwed into the threaded portion 94 of the rotary shaft 93, so that the seed outlet of the seed guide tube 97 is obtained. The amount of seeds discharged from 98 (a smaller amount than the amount of fertilizer) is adjusted (see FIG. 8). The seed guide tube 97 is provided with an upper end portion of a flexible seed guide hose 99 that guides seeds toward the seeding disc 32 (see FIG. 1).

  On the other hand, as shown in FIGS. 9 (a) and 9 (b), the lid 34 has a fertilizer storage section lid 101 that opens and closes the front side of the upper surface opening 35 of the tank body 33, that is, the horizontal upper surface of the fertilizer storage section 56. And a seed storage portion lid 102 that opens and closes the rear side of the upper surface opening 35 of the tank body 33, that is, the inclined upper surface of the seed storage portion 57.

  The fertilizer storage part lid 101 is attached to the tank body 33 so as to be rotatable in the vertical direction about the shaft part 103 in the horizontal direction. The seed storage portion lid 102 is attached to the tank body 33 so as to be rotatable in the vertical direction about the shaft portion 104 in the left-right direction.

  9A shows the closed state of the lid 34, and FIG. 9B shows the opened state of the lid 34. When the lid 34 is closed as shown in FIG. There is a gap between the body 34 and the tank body 33, and the sealing performance is low. For this reason, it is possible to prevent rainwater from entering, and to prevent the fertilizer and seeds from solidifying due to dew condensation in the tank body 33 by allowing the moisture of the fertilizer and seeds to escape from the gaps.

  The airframe 2 includes a main frame 106, a side frame 107, a center frame 108, a seeding disk frame 109, a pressure wheel frame 110, a step 111, and the like as shown in FIGS.

  Next, the operation and the like of the farm work machine 1 will be described.

  When performing a fertilizer sowing operation in which fertilizer and seeds are sown in a field, first, an operator places a first partition 61 different from the partition wall 60 on the first mounting plate 51 of the partition mounting portion 50 of the tank body 33. Attach and part of the tank body 33.

  Then, the communication opening 58 is covered by the first partition 61, and the communication opening 58 is closed by the first partition 61. As a result, the fertilizer storage portion 56 and the seed storage portion 57 that are in communication with each other. Is in a non-communication state. That is, the fertilizer storage unit 56 and the seed storage unit 57 are two rooms (storage spaces) that are independently separated from each other.

  Next, the worker stores the fertilizer in the fertilizer storage unit 56 that is one room, and stores seeds in the seed storage unit 57 that is the other room smaller than the one room.

  Then, when the farm work machine 1 is moved in the traveling direction by the forward traveling of the tractor, a sowing groove is formed on the surface portion (uncultivated soil) of the field by the groove forming disk 8 of the groove forming means 6.

  In the formed sowing groove, fertilizer and seeds fed from the tank body 33 by the rotation of the fertilizer feeding roll 82 and the seed feeding roll 92 are sown.

  Thereafter, the fertilizer and seeds in the sowing groove of the field are covered with a cover soil, and the cover soil is pressed down and pressed by the pressing wheel 12. When supplying fertilizer and seed into the tank main body 33, the fertilizer storage portion lid 101 and the seed storage portion lid 102 are opened to open the upper surface opening 35 of the tank main body 33.

  Here, depending on, for example, the type of seeds, the field conditions, and the like, there is a case where a seeding operation for seeding only seeds is performed instead of a fertilizer seeding operation for simultaneously sowing fertilizer and seeds.

  In such a case, the operator removes the first partition 61 from the first mounting plate 51 of the partition mounting portion 50, and instead replaces the second partition 71 different from the partition wall 60 with the partition mounting portion 50. Are attached to the second mounting plate 52 and part of the tank body 33 is partitioned.

  Then, the upper part of the fertilizer dropping port 41 is covered by the second partition 71, and the fertilizer dropping port 41 is closed by the second partition 71, while the first partition 61 is removed. The communication opening 58 opens and the fertilizer storage 56 and the seed storage 57 communicate with each other. That is, most of the fertilizer storage part 56 can be used as an extension part of the seed storage part 57, that is, an extended seed storage part.

  For this reason, the worker stores seeds in both the front and rear fertilizer storage units 56 and the seed storage unit 57 in the tank body 33.

  Then, when the farm work machine 1 is moved in the traveling direction by the forward traveling of the tractor, a sowing groove is formed on the surface portion (uncultivated soil) of the field by the groove forming disk 8 of the groove forming means 6.

  In the formed sowing groove, seeds fed from the tank body 33 are sown by the rotation of the seed feeding roll 92, and then the seeds in the sowing groove are covered with cover soil, and the cover soil is pressed by the pressure reducing wheel 12. And then compacted. When seeds are supplied into the tank body 33, the fertilizer storage section lid 101 and the seed storage section lid 102 are opened, and the upper surface opening 35 of the tank body 33 is opened.

  And according to such an agricultural working machine 1, since the fertilizer storage part 56 can be used as a part (expansion part) of the seed storage part 57, when performing the seeding | seeding operation | work which seeds only a seed, It is possible to effectively use the capacity without waste. For example, the seed replenishment frequency can be reduced and the burden on the operator can be reduced as compared with the case where seeds are stored in only the seed storage unit 57 for seeding.

  The first partition 61 is a downwardly inclined fertilizer guide surface 66 that guides the fertilizer in the fertilizer storage portion 56 toward the fertilizer dropping port 41 and the downhill that guides the seed in the seed storage portion 57 toward the seed dropping port 42. In addition to the inclined seed guide surface 67, the second partition 71 has a downward inclined seed guide surface 73 that guides the seeds of the fertilizer storage portion 56 toward the seed dropping port 42, and the tank body 33. Since the bottom plate portion 43 of the tank is composed of an inclined bottom plate 48 inclined downward toward the fertilizer dropping port 41 and the seed dropping port 42, there is no horizontal surface on the bottom of the tank, and the fertilizer and seeds are directed toward the dropping ports 41 and 42. Since it slides down, it is possible to prevent unsowing of fertilizers and seeds, thereby reducing the replenishment frequency and further reducing the burden on the operator.

  Furthermore, since the tank body 33 has the partition attachment portion 50 shared with the first partition 61 and the second partition 71, for example, individual partition attachment portions are provided for the respective partitions 61 and 71. The configuration can be simplified as compared with the case of having it.

  The first partition 61 used at the time of the fertilization and seeding operation preferably has the guide surfaces 66 and 67, but it may be, for example, only a vertical plate portion that covers the communication opening 58.

  In addition, the second partition 71 used at the time of the sowing operation preferably has a seed guide surface 73, but may be composed of only a horizontal plate portion covering the fertilizer dropping port 41, for example.

  Further, the partitions 61 and 71 are not limited to those attached individually to the respective partition attachment portions 50. For example, the partition members 61 and 71 are formed in a longitudinal direction corresponding to the tank main body 33 and formed into one partition attachment portion. You may make it attach so that attachment or detachment is possible.

  In addition, the configuration in which the partition bodies 61 and 71 are attached to the partition body mounting portion 50 with mounting tools (bolts 55 and nuts 53) is not limited. For example, the partition body fits into the partition body mounting portion without using a mounting tool. The structure etc. which are attached by joint or engagement etc. may be sufficient.

  Furthermore, it is not limited to the configuration using the partition bodies 61 and 71 having different shapes, for example, when performing fertilization sowing work with a plate-shaped partition body that can be shared for both work (fertilization sowing work and sowing work). The fertilizer storage unit 56 and the seed storage unit 57 may be in a non-communication state, and the fertilizer storage unit 56 may be used as a part of the seed storage unit 57 when performing sowing work.

1 Agricultural machine
33 Tank body
41 Fertilizer outlet
42 Seed drop port
43 Bottom plate
48 Inclined bottom plate
50 Partition mount
56 Fertilizer storage
57 Seed storage
58 Communication opening
60 Partition wall as partition member
61 1st partition which is a partition
66 Fertilizer guide
67 Seed guide surface
71 2nd partition which is a partition
73 Seed guide surface

Claims (4)

An agricultural machine capable of performing fertilization sowing work and sowing work,
A tank body having a bottom plate portion in which a fertilizer drop opening and a seed drop opening are formed;
A partition member for partitioning the inside of the tank body and forming a fertilizer storage portion on the fertilizer dropping port side and forming a seed storage portion communicating with the fertilizer storage portion on the seed dropping port side through a communication opening; ,
When performing fertilization sowing work, a first partition is used that covers the communication opening and places the fertilizer storage unit and the seed storage unit in a non-communication state,
When performing the sowing work, a second partition that allows the fertilizer storage part to be used as a part of the seed storage part in such a way as to cover the fertilizer dropping port is used,
It said first partition member has a sloped seed guide surfaces for the inclined fertilizer guiding surface and seeds guided toward the manure to the manure chute toward the seed chute guide,
The second partition member is agricultural working machine you characterized in that it has a slanted seed guide surface for the seed toward the seed chute guide. The bottom plate of the tank body, fertilizer chute and agricultural machine according to claim 1, wherein the toward the seed chute is constituted by inclined bottom plate of inclined downward. The tank body has a partition mounting portion,
When performing fertilization sowing work, the first partition is detachably attached to the partition attachment part, and when performing sowing work, the second partition is detachably attached to the partition attachment part. The agricultural machine according to claim 1 or 2, characterized in that The capacity of a fertilizer storage part is larger than the capacity | capacitance of a seed storage part. The agricultural working machine as described in any one of Claim 1 thru | or 3 characterized by the above-mentioned.

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