JP6524045B2 - Paddy work machine - Google Patents

Description

  BACKGROUND OF THE INVENTION Field of the Invention The present invention relates to a paddy field work machine provided with a main working device for sowing or planting, a fertilizing device, and a dosing device, which are activated during forward traveling for work.

  As a paddy field work machine as described above, for example, a fertilizer hopper (fertilizer storage unit) and a feeding unit (fertilizer delivery unit) of a fertilizer application device are equipped at the rear of a traveling vehicle (traveling vehicle body). Device), multiple grooves of fertilizer application device, drug spray device (medicine delivery device) etc. are connected to the rear of the traveling machine via vertically movable link mechanism so as to be able to move up and down. There are those in which a plurality of fertilization hoses are installed across each groover at the rear of the machine body (see, for example, Patent Document 1).

JP, 2013-201919, A

  In the above-described configuration, by providing the drug spraying device for spraying the drug over the entire working width of the paddy field working machine, it is difficult to obtain medicinal effects although the amount of administration increases. Therefore, in recent years, in order to be able to effectively obtain medicinal effects such as disease and insect repellents on seeds or seedlings while reducing the amount of medication, it is near the planned sowing site or the planned planting site on the field mud surface. It is considered to adopt a grooved type dosing apparatus which supplies a drug into the groove by forming the groove with a groove for medication.

  However, if the application is done by grooving near the planned sowing site or the planned planting site on the field mud surface, if seeding or planting of the seedling is performed with insufficient backfilling of the medication groove, seed seeding may occur. It is likely to cause a drop in the emergence rate and seedling establishment rate, or seedling collapse due to poor planting.

  In particular, when using a direct-seeding apparatus as the main work apparatus and using a seed coat that has been subjected to an iron coating treatment to prevent bird damage as seeds, sowing with insufficient backfilling of the medication groove When this was done, a drop in the emergence rate and seedling establishment rate due to the burying of the seeds became noticeable.

  The object of the present invention is to achieve medicinal effects on seeds or seedlings effectively while reducing the dose, and also to reduce the emergence rate and seedling establishment rate due to the burial of seeds, or seedling collapse due to poor planting, etc. To prevent.

Means for Solving the Problems of the Present Invention
It has a main working device for sowing or planting, a fertilizing device and a dosing device, which are activated during forward travel for work;
The main work device aligns and arranges a plurality of main supply units for supplying seeds or seedlings to the field at regular intervals in the left-right direction,
The fertilizing device is provided with a plurality of fertilizer supply units for supplying fertilizer to a field at a position spaced apart from the corresponding main supply unit in the widthwise direction of the machine.
The medication device comprises a plurality of medicine supply units configured in a grooved manner for forming a groove on a muddy surface of a field by means of a medicine forming groove and supplying medicine in the groove with a corresponding main supply unit It is disposed at the same position in the width direction and at the front in the longitudinal direction of the machine than the corresponding main supply unit .

As one of the means for making the present invention more suitable,
A plurality of medicine-applied soil covering members for backfilling each of the medicine-forming grooves formed by the plurality of medicine-supplying units are disposed at the rear position of the medicine-supplying unit.

  According to this means, it is possible to guide field mud and the like pushed out in the left and right direction along with the groove of each medicine supply unit performed at the time of forward traveling for work to each medicine groove by the following medicine cover members. .

  As a result, when the mud in the field is hard and it is difficult to flow into the medicine ditch, or the operation speed is high and it takes between the time when each preceding medicine supply section grooves and the next each main supply section supplies seeds or seedlings. Even when it is difficult to secure the time required for the refilling of the medication groove in the case, the refilling of each medication groove can be performed promptly and reliably.

  As a result, regardless of the hardness and working speed of the field mud, the emergence rate and seedling establishment rate by the burial of seeds caused by the supply of the seeds or seedlings under the condition that the backfilling of each medication groove is insufficient. It is possible to prevent the occurrence of seedling falling due to decline or poor planting. In addition, it is possible to prevent the medicine supplied to each medication groove from being diffused over a wide area and weakening the medicinal effect due to the poor backfilling of each medication groove.

  Therefore, regardless of the hardness of the field mud or the working speed, it is possible to accurately supply the field or seeds and seedlings and the drug with high accuracy, thereby effectively reducing the dose and effectively applying the effect to the seeds or seedlings. While being able to be obtained, it is possible to prevent a drop in emergence rate and seedling establishment rate due to seed burial, or seedling collapse due to poor planting, and as a result, it is possible to promote the growth of seedlings.

As one of the means for making the present invention more suitable,
Each of the plurality of fertilizer supply parts is formed into a ditch type in which a ditch for fertilization is used to ditch a muddy surface of a field to supply fertilizer in the ditch;
It has a plurality of fertilization soil covering members that backs up each of the fertilization grooves formed by the plurality of fertilizer supply parts,
The plurality of medicine cover members extend from the first fixed portion provided on the opposite side to the fertilizing groove adjacent to the medicine groove to be backfilled in a slanting posture toward the medicine groove to be backfilled.
The plurality of soil covering members for fertilization extend from the second fixed portion provided on the opposite side to the drug application groove adjacent to the fertilizing groove to be backfilled with a slanting posture directed backward toward the fertilizing groove to be backfilled.

  According to this means, the field mud etc. which is pushed out to each first fixed part side of the field mud which is pushed out in the left and right direction along with the groove of each medicine supply part performed at the time of forward traveling for work It can be guided to each medicine groove by a medicine covering member.

  As a result, when the mud in the field is hard and it is difficult to flow into the medicine ditch, or the operation speed is high and it takes between the time when each preceding medicine supply section grooves and the next each main supply section supplies seeds or seedlings. Even when it is difficult to secure the time required for the refilling of the medication groove in the case, the refilling of each medication groove can be performed promptly and reliably.

  In addition, the field mud etc. which is pushed out to each second fixed part side among the field mud which is pushed out in the left and right direction along with the grooving of each fertilizer supply part performed at the time of forward traveling for work It can be guided to each fertilization ditch by a member.

  Thereby, even when the mud in the field is hard and it is difficult to flow into the fertilization ditch, etc., the backfilling of each fertilization ditch can be performed promptly and surely.

  As a result, regardless of the hardness and working speed of the field mud, the emergence rate and seedling establishment rate by the burial of seeds caused by the supply of the seeds or seedlings under the condition that the backfilling of each medication groove is insufficient. It is possible to prevent the occurrence of seedling falling due to decline or poor planting. In addition, due to poor backfilling of each medication groove and each fertilization groove, it is possible to prevent the drug or fertilizer supplied to each medication groove or each fertilization groove from spreading over a wide area and weakening the efficacy or fertilization effect. .

  Therefore, regardless of the hardness of the field mud and the working speed, appropriate field supply of seeds or seedlings and medicines and fertilizers can be accurately performed, thereby reducing the dose and fertilization amount to the seeds or seedlings. While being able to effectively obtain medicinal effects and fertilizing effects, it is possible to prevent a decrease in emergence rate and seedling establishment rate due to seed burial, or seedling collapse due to poor planting, and as a result, seedling It can promote fostering.

As one of the means for making the present invention more suitable,
Equipped with a leveling float for leveling the muddy surface of the field so that it can swing up and down,
Each of the plurality of fertilizer supply parts is formed into a grooved type in which grooves are formed on a muddy surface of a field by a groover for fertilization, and fertilizer is supplied into the grooves, and swinging of the ground adjustment float in side view The leveling float is equipped with an arrangement overlapping the fulcrum.

  According to this means, it is possible to use the leveling float equipped so as to be able to swing up and down in order to level the field mud surface as a support member for supporting each fertilizer supply unit. And, even though the leveling float is also used as the support member in this way, it is possible to accurately and uniformly apply the fertilization depth by each fertilizer supply portion regardless of the vertical movement of the leveling float.

  Therefore, it is possible to improve the fertilization accuracy while simplifying the configuration by reducing the number of parts, and it is possible to further promote the breeding of seedlings.

As one of the means for making the present invention more suitable,
Equipped with a leveling float to level the muddy surface of the field,
Each of the plurality of medicine supply units is disposed at a front end side portion in which the bottom surface is warped in the ground adjustment float.

  According to this means, the ground adjustment float can be used as a support member for supporting each medicine supply unit. Thus, while the ground adjustment float is also used as a support member, the separation distance between each main supply portion and each medicine supply portion in the longitudinal direction of the machine can be increased, whereby each medicine supply portion forms a groove. After that, it becomes easy to secure the time required for the backfilling of the medication groove in the period from when each main supply part supplies seeds or seedlings.

  Therefore, the emergence of seeds by seed burial caused by the supply of seeds or seedlings by each main supply section in a state in which the backfilling of each drug groove is insufficient while simplifying the configuration by reducing the number of parts. It is possible to prevent the occurrence of seedling falling due to a decrease in the rate or seedling establishment rate, or poor planting.

As one of the means for making the present invention more suitable,
Equipped with a leveling float for leveling the muddy surface of the field so that it can swing up and down,
Each of the plurality of medicine supply units is equipped on the ground adjustment float in an arrangement overlapping the swing fulcrum of the ground adjustment float in a side view.

  According to this means, it is possible to use the leveling float, which is mounted so as to be able to swing up and down in order to level the field muddy surface, as a support member that supports each medicine supply unit. And, even though the leveling float is also used as the support member in this way, the dose depth of each medicine supply section can be accurately and accurately fixed regardless of the vertical movement of the leveling float.

  Therefore, the medication accuracy can be improved while simplifying the configuration by reducing the number of parts, and the breeding of seeds and seedlings can be further promoted.

As one of the means for making the present invention more suitable,
Each of the plurality of fertilizer supply parts is formed into a ditch type in which a ditch for fertilization is used to ditch a muddy surface of a field to supply fertilizer in the ditch;
Each of said fertilizing furrows comprises a furrowing aid which extends forward from their front end to assist the furrowing with the furrowing furrower,
Each of the plurality of medicine supply parts is disposed at a position where the rear end of the medication groove is overlapped with the front end of the groove auxiliary tool in a side view.

  According to this means, a groover for fertilization and a groover for medication, which are produced when the fertilizer feeders and the medicine feeders are arranged such that the groovers are arranged in close proximity to each other, Mud plugging in between can be prevented, and it is possible to prevent groove forming failure due to the mud plugging and backfilling failure of each drug application groove and each fertilization groove.

  In addition, of the field mud that is pushed out in the left-right direction along with the cutting grooves of each chemical supply part performed at the time of forward traveling for work, the field mud that is pushed out to the fertilizer supply part side The field mud can be guided to the rear side of the machine by the tool, and this field mud, which is pushed out in the lateral direction along with the grooves formed by the fertilizer supply parts, is pushed to the side of the medicine groove in the field mud. It can be flowed towards each medication channel.

  Therefore, the refilling of each medication groove can be performed more quickly, and it is more effectively prevented that the supply of seeds or seedlings by each main supply part is performed in the state where the refilling of each medication groove is insufficient. be able to.

As one of the means for making the present invention more suitable,
Each of the groove forming devices is formed so as to be elastically deformable in the groove width direction so that the groove is formed with a narrow groove width when the groove forming load is large and is formed with a wide groove width when the groove forming load is small. ing.

  Groove loading increases as the soil in the field gets harder and smaller as it gets softer. Also, the higher the working speed, the greater the speed, and the slower the speed.

  Therefore, according to this means, it is difficult to backfill each drug application groove or each fertilization groove due to the fact that the field mud is hard and the working speed is high, the application groove or fertilization performed by each groove device The groove width of the groove becomes narrow, and it becomes easier to backfill each drug application groove or each fertilization groove.

  As a result, regardless of the hardness and working speed of the field mud, the emergence rate and seedling establishment rate by the burial of seeds caused by the supply of the seeds or seedlings under the condition that the backfilling of each medication groove is insufficient. It is possible to prevent the occurrence of seedling falling due to decline or poor planting. In addition, due to poor backfilling of each medication groove or fertilization groove, it is possible to prevent the drug or fertilizer supplied to each medication groove or fertilization groove from spreading over a wide area and weakening the efficacy or fertilization effect. .

  On the contrary, as the backfill of each medication groove or each fertilization groove becomes easy to be performed due to the softness of the field mud or the slow traveling speed, the groove width of the medication groove formed by each groove increases. Therefore, it is possible to lengthen the time required to backfill each medication groove or each fertilization groove.

  As a result, even when mud in the field is soft and easy to flow into each medication groove or each fertilization groove, or when work speed is slow and each medication groove or each fertilization groove is grooved immediately after backfilling, etc. It is possible to secure a predetermined time required to backfill each medication groove or each fertilization groove.

  As a result, regardless of the hardness of the field mud and the operation speed, it was attributed to the backfilling of each groove being performed from the stage during the supply of the drug or fertilizer into each groove by each drug supply unit or each fertilizer supply unit. It is possible to prevent the diffusion of the drug or the fertilizer from within each groove.

  Then, each of the groove forming devices is elastically deformed in the groove width direction according to the groove forming load, whereby the mud, the medicine or the fertilizer attached to the groove forming device can be automatically removed from the groove forming devices. In this way, it is possible to prevent the application failure or the fertilization failure caused by the adhesion of the mud, the medicine, or the fertilizer to the groover.

  Therefore, regardless of the hardness and working speed of the field mud, appropriate field supply of seeds or seedlings and medicines or fertilizers can be accurately performed, whereby medicinal effects or fertilizing effects on the seeds or seedlings can be effectively obtained. Thus, it is possible to prevent a drop in emergence rate and seedling establishment rate due to the burying of seeds, or seedling collapse due to poor planting, and as a result, it is possible to promote the growth of seedlings.

As one of the means for making the present invention more suitable,
Each of the groove forming devices includes a first member which can not be elastically deformed and a second member which can be elastically deformed in the groove width direction, and the first member is disposed inside the second member so as to have a groove width. The elastic deformation of the second member in the narrowing direction is restricted by the contact with the first member.

  According to this means, it is possible to effectively suppress the possibility that the lower end side of each groove is blocked because the grooved load is too large due to the hardness of the field mud and the high working speed.

  Therefore, even if the groove load becomes too large due to the hardness of the field mud and the high working speed, the groove formed by each groove ensures the minimum groove width necessary for applying or fertilizing. It is possible to perform proper medication or fertilization.

As one of the means for making the present invention more suitable, equipped with a leveling float for leveling the muddy surface of the field,
The plurality of fertilizer supply parts are formed in a grooved manner in which grooves are formed on the muddy surface of the field by a groover for fertilization, and the fertilizer is supplied in the grooves;
The leveling float is equipped with the medication groove and the fertilization groove,
The leveling float is formed between the groovers in which the rear end is positioned rearward of the groover for fertilization between the groover for applying the medication and the groover for applying fertilizer. It has a department.

  According to this means, the ground adjustment float can be used also as a support member for supporting each medicine supply unit and each fertilizer supply unit.

  In addition, the field mud, which has entered the lower part of the land preparation float with work traveling, is pushed out to the left and right of the medicine forming groove by the groove of the medicine groove with the movement at this time, and for fertilization By pushing the groove on the left and right of the groove for fertilization by the groove on the groove of the groove, even if it becomes easy to be concentrated between the groove for medication and the groove for fertilization, As a result of the action of the leveling portion between the groovers located between the two, it is possible to prevent the floating of the field mud from between the groove for medication and the groove for fertilization.

  By this, it is possible to prevent the deterioration of the leveling performance due to the floating of the field mud and the rising of the field mud on the leveling float, etc., between the groove for medication and the groove for fertilization. Can.

It is a left side view of a passenger direct seeder. It is a top view of a passenger direct seeder. It is a left view of a work unit. It is a longitudinal left side view of a work unit. It is a rear view of a work unit. It is a vertical rear view of the operation unit which shows the structure of a fertilization apparatus. It is a vertical rear view of the operation unit which shows the structure of a dosing apparatus. It is a cross-sectional top view of the operation | work unit which shows arrangement | positioning of a seed supply part, a fertilizer supply part, and a chemical | medical agent supply part. It is a vertical side view of the principal part which shows arrangement | positioning of a fertilizer supply part and a chemical | medical agent supply part. It is a longitudinal cross-sectional view of the principal part which shows the support structure of the leveling float on either side. It is a disassembled perspective view of the principal part which shows the support structure of the leveling float on either side. It is the schematic which shows the transmission structure of a working unit. It is a vertical side view of the principal part which shows the interlocking | linkage structure of a direct-sowing apparatus and a dosing apparatus. It is a cross-sectional top view of the principal part which shows the interlocking | linkage structure etc. of a direct-sowing apparatus and a dosing apparatus. It is a vertical side view of the principal part which shows the structure of the fertilizer supply part in another embodiment, and a chemical | medical agent supply part. It is a cross-sectional top view of the principal part which shows the structure of the fertilizer supply part in another embodiment, and a chemical | medical agent supply part. It is a cross-sectional top view of the principal part which shows the shape of the ground adjustment float in another embodiment.

  Hereinafter, as an example of a mode for carrying out the present invention, an embodiment in which the present invention is applied to a direct-row seeding machine as an example of a paddy field work machine will be described based on the drawings.

  As shown in FIG. 1 and FIG. 2, the passenger direct seeding machine illustrated in the present embodiment is a lifting cylinder 2 adopting a single-acting hydraulic cylinder at the rear of a traveling vehicle body 1 configured in a passenger type four-wheel drive type. The working unit A for sowing is connected so as to be capable of moving up and down via the vertically swinging link mechanism 3 which is swung up and down by the operation of the above.

  The traveling vehicle body 1 has a power from the engine 4 vibration-proof mounted at the front part thereof as a main transmission, a hydrostatic stepless transmission (not shown), and a gear-type transmission as an auxiliary transmission It is configured to be transmitted to the left and right front wheels 5 disposed at the front and the left and right rear wheels 6 disposed at the rear via an apparatus (not shown) and the like. On the rear side of the traveling vehicle body 1, a boarding operation unit 10 is formed by arranging a boarding step 7, a steering wheel 8 for front wheel steering, and a driver seat 9 whose position can be adjusted in the front-rear direction. On the left and right of the traveling vehicle body 1, left and right expansion steps 11 are provided to expand the riding area to the left and right. At the rear of the boarding driver 10, a rear step 12 extending toward the work unit A from the rear of the traveling vehicle body 1 above the link mechanism 3 and the left and right rear wheels 6, etc. The handrail 13 used at the time of deployment is deployed.

  As shown in FIGS. 1 to 5, the working unit A has a seeding frame 14 connected to the rear end of the link mechanism 3 in a rollable manner, a six-row direct sowing device 15 as a main working device for sowing, Fertilizers 16 for feeding 6 fields, dosing devices 17 for 6 feeding medicines to the field, transmissions 18 for transmitting to each of the devices 15 to 17, field mud surface to be worked when traveling forward for work The unit is provided with three leveling floats 19 having a T-shape in plan view for leveling, and left and right groove cutting tools 20 for forming drainage grooves in the field along with forward traveling for work.

  That is, by unitizing the direct-sowing device 15, the fertilizing device 16, and the dosing device 17, the devices 15 to 17 of the devices 15 to 17 are individually assembled as compared with the case where the devices 15 to 17 are individually assembled. The assembly to the traveling vehicle body 1 can be facilitated.

  As shown in FIGS. 3 to 7, the seeding frame 14 includes a main frame 21 connected to the rear end of the link mechanism 3, a front support frame 22 standing tall on the front side of the main frame 21, and A rear support frame 23 and the like are provided on the rear side of the frame 21.

  As shown in FIGS. 1 to 5 and FIG. 8, the direct-seeding apparatus 15 stores left and right seed reservoirs each storing three rows of seed pods as a main storage section that stores the seed pods to which iron coating treatment is applied. The portion 24, six seed feeding portions 25 as a main feeding portion for intermittently feeding a predetermined amount of seed meal downward from the corresponding seed storage portion 24, and seed seeds having the corresponding seed feeding portion 25 feeding downward Six seed supply parts 26 as a main supply part which are dropped and supplied to the field mud surface after leveling located just under the feeding part 25 are provided. Then, the various feeding members 25 are operated by the working power from the traveling vehicle body 1 transmitted through the external transmission shaft 27 and the transmission device 18 etc., so that a predetermined amount of seed is taken as one share in the front-rear direction It is constructed in the muddy surface sowing type for 6 rows which sows up to 6 rows on the surface of the soil of the field with a predetermined interval.

  In the direct seeding apparatus 15, the left and right seed reservoirs 24 are formed by arranging three seed discharge ports (not shown) at lower ends thereof at regular intervals in the left-right direction. And the seed delivery part 25 is connected with each of the seed discharge port formation location in the various child storage parts 24. As shown in FIG. Each of the seed feeding units 25 connects the seed supply unit 26 to each of the lower end portions on which the seeds are discharged. Then, the left and right seed reservoirs 24 are arranged at predetermined intervals in the left-right direction so that the various child supply units 26 are aligned with the corresponding seed feeding units 25 and the seed discharge port at regular intervals in the left-right direction. It is open and deployed.

  As shown to FIGS. 1-8, the fertilization apparatus 16 intermittently the fertilizer of predetermined amount from the fertilizer storage part 28 on either side which stores three rows of granular fertilizer which is an example of a fertilizer, and the corresponding fertilizer storage part 28. 6 fertilizer delivery units 29 that feed out, 6 fertilization hoses 30 as fertilizer guide tubes that flow down the fertilizer that the corresponding fertilizer delivery units 29 draw down, and fertilizers that the corresponding fertilization hoses 30 guide to the field 6 fertilizer supply units 31 and so on. Then, each fertilizer feeding portion 29 is operated by the working power from the traveling vehicle body 1 transmitted through the external transmission shaft 27 and the transmission 18 etc., whereby a predetermined amount of fertilizer is opened in the front-back direction by a predetermined interval. It is configured for six articles to be fertilized for up to six articles in

  At the lower ends of the left and right fertilizer reservoirs 28, three fertilizer discharge ports (not shown) are aligned at predetermined intervals in the left-right direction. And the fertilizer delivery part 29 is connected with each of the fertilizer discharge port formation location in each fertilizer storage part 28. As shown in FIG. Each fertilizer delivery part 29 is comprised so that a predetermined space | interval may be opened in the left-right direction in the state connected with the corresponding fertilizer storage part 28.

  Each fertilizer supply unit 31 is configured in a grooved type in which the groove is formed on the field muddy surface after leveling by a groover 32 for fertilization formed in a U-shape in plan view, which opens rearward, and supplies the fertilizer in the groove. doing. Then, the front end side portion of the corresponding ground preparation float 19 is positioned on the front side of the machine relative to the corresponding seed supply unit 26 and at a predetermined distance from the corresponding seed supply unit 26 in the machine lateral width direction. It is fixedly equipped in the part near the center of the right and left in the right and left overhang area prepared for.

  The drug administration device 17 intermittently receives a predetermined amount of drug from three drug reservoirs 33 and two corresponding drug reservoirs 33 for storing two drugs each such as a powdery herbicide and a disease preventive agent which is an example of a drug. The six medicine delivery units 34 for delivering the medicine, the six dosing hoses 35 as drug guiding tubes for guiding down the medicine dispensed by the corresponding medicine delivery unit 34, and the medicine guided by the corresponding dosing hose 35 are supplied to the field , And so on. Then, each medicine feeding portion 34 is operated by the power for work from the traveling vehicle body 1 transmitted through the external transmission shaft 27 and the transmission 18 etc., and a predetermined amount of medicine is opened in the front-back direction by a predetermined interval. It is configured for 6 articles where medications of up to 6 articles are given.

  Each medicine reservoir 33 has two medicine outlets (not shown) at the lower end thereof aligned with a predetermined interval in the left-right direction. And the drug delivery part 34 is connected with each of the drug discharge port formation location in each drug storage part 33. Each medicine delivery section 34 is configured to line up at a predetermined interval in the left-right direction in a state of being connected to the corresponding medicine storage section 33.

  Each medicine supply part 36 is formed in a grooved groove type for supplying a medicine in a groove by forming a groove on a field mud surface after leveling by a groove forming device 37 for dosing formed in a U-shape in plan view to open the rear. doing. Then, the above-described left and right overhangs of the corresponding ground preparation float 19 are positioned at the front side of the machine than the corresponding fertilizer supply unit 31 and at the same position in the machine lateral width direction with the corresponding seed supply unit 26. It is fixedly equipped at the part near the left and right outer end in the field.

From the above configuration, at the time of forward traveling for work in which the operation unit A is operated, first, along with the traveling, each ground adjusting float 19 grounds the field muddy surface to be operated.
Next, in a state where each medicine supply unit 36 of the medication apparatus 17 precedes each kind of child supply part 26 of the direct seeding apparatus 15 and each manure supply unit 31 of the fertilization apparatus 16, the field muddy surface after soil preparation by each soil preparation float 19 The medication groove is formed at the same position in the body width direction with respect to the planned seeding site of the various child supply parts 26 in the above, and the medicament delivered by each medicine delivery part 34 of the medication device 17 is supplied inside the medication groove.
Also, in a state in which each fertilizer supply unit 31 of the fertilization device 16 precedes the various child supply units 26 of the direct sowing device 15, from the planned sowing site of the various child supply units 26 on the field mud surface after leveling by each leveling float 19 Fertilization grooves are formed at positions spaced by a predetermined distance in the machine body width direction, and the fertilizer delivery units 29 of the fertilization apparatus 16 supply the fertilizer delivered to the inside of the fertilization grooves.
Thereafter, each medicine supply on the field muddy surface after application of each child supply unit 26 of the direct seeding apparatus 15 by each medicine supply unit 36 of the medicine application device 17 and after fertilization by each fertilizer supply unit 31 of the fertilization apparatus 16 Seed meal fed from various seed feeding units 25 of the direct sowing device 15 is dropped and supplied to the same position in the machine body width direction with respect to the portion where the portion 36 is applied.

  Then, in the working unit A, each medicine supply unit 36 supplies various children to the various child supply units 26 of the direct seeding apparatus 15, the fertilizer supply units 31 of the fertilization apparatus 16, and the medicine supply units 36 of the medicine application apparatus 17. In the arrangement located on the front side of the machine than the unit 26, by arranging so that each fertilizer supply unit 31 is located between them, the separation of the various child supply unit 26 and each medicine supply unit 36 in the machine longitudinal direction The distance can be increased. Thereby, at the time of forward traveling for work, a time difference between each leading groove type drug supply unit 36 forming a medication groove and a subsequent seed delivery unit 26 sowing the medication groove formation location This makes it easy to secure the time required for the backfilling of the drug application groove between the time when each drug supply unit 36 is grooved and the time when the various child supply units 26 are seeded.

  That is, in order to make it easy for the seed meal to obtain medicinal effects, the muddy surface seeding type various child feeding section 26 and the grooved type medicine feeding section 36 are disposed at the same position in the body width direction, and Even if the seeding position and the medication position are set to be the same, the drug delivery groove formed by each drug delivery unit 36 of the drug delivery device 17 for dosing can be seeded until the various child feed portions 26 of the direct seeding device 15 follow. In between, it can be backfilled by the mud which flows in to the drug ditch after passing each medicine supply part 36, and it can be seeded on the mud surface of the refilled drug ditch forming part.

  As a result, it is possible to prevent the seed coat which has been subjected to the iron coating from being buried due to the seeding being carried out in a state where the backfilling of each medication groove is insufficient, and the establishment of seedlings due to this burial It is possible to prevent a drop in the rate.

  In addition, it is possible to prevent the drug supplied to each medication groove from being diffused over a wide area and weakening the efficacy due to insufficient backfilling of each medication groove.

  Furthermore, in this working unit A, by arranging the grooved fertilizer supply units 31 and the grooved chemical supply units 36 in a staggered manner in the longitudinal direction of the machine, they are arranged side by side and approached. Mud plugging between the fertilizing groove 32 and the medication groove 37, which occurs when deployed, can be prevented.

  As shown in FIG. 3, FIG. 4 and FIG. 8, the respective groovers 32 for fertilization and the respective groovers 37 for medication extend forward from their front ends and are respectively connected to the respective groovers 32, 37. A groove forming aid 38, 39 is provided to connect the grooves to assist the groove formation. Each of the groove forming aids 38 and 39 is formed to have a bottom surface which is in a state of being curled up toward the front end side. Thus, the grooves formed by the groovers 32 and 37 can be smoothly carried out with less resistance.

  As shown in FIGS. 3 to 5 and FIGS. 9 to 11, the front end side portion having the above-mentioned left and right overhanging regions is the front end side in order to improve the ground landing performance etc. with respect to the unevenness of the field mud surface. It is formed to have a warped shape. In addition, metal floats 68 provided at the front and rear middle portions are supported by the three float support members 40 distributed at predetermined intervals in the left and right direction at the lower part of the main frame 21 of the sowing frame 14. By being connected via the shaft 41, the lower part of the sowing frame 14 is provided so as to be able to swing up and down. And the corresponding fertilizer supply part 31 is supported by the arrangement | positioning which overlaps with the horizontal direction spindle 41 which is a rocking | fluctuation fulcrum of the ground adjustment float 19 by the side view in those. In addition, the corresponding medicine supply units 36 are supported at the front end side portion in which the bottom surface thereof is warped.

  Thereby, each ground preparation float 19 can be used also as a supporting member which supports each fertilizer supply part 31 and each medicine supply part 36, and simplification of composition by reduction of parts number can be attained. And, even though each leveling float 19 is also used as a support member in this manner, the fertilizing depth by the fertilizing device 16 can be accurately constant regardless of the vertical movement of each leveling float 19. Moreover, while effectively utilizing the longitudinal length of each ground adjustment float 19, the separation distance between each fertilizer supply portion 31 and each medicine supply portion 36 in the longitudinal direction of the machine body can be increased, and accordingly, various children The separation distance between the supply unit 26 and each medicine supply unit 36 in the longitudinal direction of the machine can also be increased. As a result, it becomes easier to secure the time required for the backfilling of the drug application groove between the time when each drug supply unit 36 is grooved and the time when the various child supply units 26 are seeded.

  As shown in FIG. 3, FIG. 4, FIG. 8 and FIG. 9, each medicine supply unit 36 has a preparation groove 37 for dispensing provided therein, and a preparation groove 32 for each fertilization located behind them. Are disposed at positions overlapping with the front end portion of the groove forming aid 38 provided in FIG.

  As a result, of the field mud that is pushed out in the left and right direction along with the grooves of each medicine supply unit 36 performed at the time of forward traveling for work, the field mud that is pushed out to the fertilizer supply unit side is produced for each subsequent fertilization. The field mud which can be guided to the rear side of the machine by the gutter auxiliary tool 38 and which is guided in the field mud which is pushed out in the left and right direction along with the grooves of the fertilizer supply section 31 It can be made to flow toward each medication groove with the mud etc. As a result, it is possible to more quickly backfill each medication groove, and it is possible to more effectively prevent the seeding from being performed in a state where the refilling of each medication groove is insufficient.

  As shown in FIGS. 3 to 5 and FIG. 8, each soiling float 19 is provided with left and right medicine covering members 42 for backfilling by backfilling each of the medicine grooves formed by the left and right medicine supply units 36 provided for them. It is provided so as to be located between the drug supply unit 36 and the seed supply unit 26 lined up back and forth. Moreover, the soil covering member 43 for fertilization of the right and left which backs up each of the fertilization ditch | groove which the fertilizer supply part 31 of the right and left with which it was formed back is carried out, and is arranged.

  Each medicine covering member 42 is backfilled from the outer end 19A of the left and right overhanging area in each ground adjusting float 19 which is the first fixed portion provided on the opposite side to the fertilizing groove adjacent to each medicine groove for backfilling. Toward the medication groove, the extension end side extends in a slanting posture facing backward so that the medication groove to be backfilled is reached.

  As a result, the field mud etc. which is pushed out to the lateral outside of each leveling float 19 of the field mud which is pushed out in the left and right direction along with the groove of each medicine supply unit 36 performed at the time of forward traveling for work It can be guided to each medicine groove by the medicine covering member 42. As a result, when the mud in the field is hard and it is difficult to flow into the drug groove, or the operation speed is high and the drug is applied between the time when the preceding drug supply unit 36 cuts the groove and the subsequent various child supply units 26 sow Even when it becomes difficult to secure the time required for the backfilling of the ditch, etc., the backfilling of each medication ditch can be performed promptly and reliably, and the sowing is performed in the state where the backfilling of each medication ditch is insufficient Can be prevented more reliably.

  The soil covering members 43 for fertilization are directed toward the fertilizing grooves to be backfilled from the rear portion 19B of the ground adjustment floats 19 which is the second fixed portion provided on the opposite side to the drug application groove adjacent to the fertilizing grooves to be backfilled. It extends in a slanting posture facing backward so that the extending end side of the groove reaches the backfilling medicine groove.

  As a result, the field mud etc. pushed to the left and right center sides of the leveling floats 19 among the field muds pushed out in the left and right direction along with the grooves of the fertilizer supply portions 31 performed at the time of forward traveling for work It can guide to each fertilization ditch by each soil covering member 43 for fertilization. As a result, even when mud in the field is hard and difficult to flow into the fertilization ditch, etc., it is possible to promptly and reliably backfill each fertilization ditch, and the cause is that the backfilling of each fertilization ditch becomes insufficient. Therefore, it is possible to prevent the spread of fertilizer supplied to each fertilization ditch to weaken the fertilizing effect.

  As shown in FIGS. 9 to 11, the working unit A is provided with the groove cutting tool 20 at the rear of the machine rear than the left and right spindles 41 in the left and right ground leveling floats 19 disposed on the left and right ends thereof. . On the other hand, in the sowing frame 14, the left and right float support members 40 for supporting the left and right ground leveling floats 19 provided with the groove cutting tool 20 are on the front side of the front of the brackets 68 provided on the corresponding ground leveling float 19. A lift limiting portion 40A is provided which limits the swinging movement of the corresponding leveling float 19 from the basic posture by the contact with the side. Further, the main frame 21 is provided at the rear end of the left and right float support portions 21A supporting the left and right ground support floats 19 via the left and right float support members 40 and the rear side of the bracket 68 provided on the corresponding ground support float 19. The descent | fall prevention part 21B which blocks | prevents downward rocking | fluctuation from the basic attitude | position of the corresponding ground adjustment float 19 is provided by contact.

  That is, by providing the rise limiting portions 40A to the left and right float support members 40, it is possible to prevent the occurrence of the ground adjustment failure caused by the left and right ground adjustment floats 19 largely swinging upward and downward. Further, by providing the descent prevention portions 21B on the left and right float supports 21A of the main frame 21, the formation of the drainage groove caused by the ditch 20 rising with the descent swing of the ground adjustment float 19 on the left and right. Defects can be prevented.

  As shown in FIGS. 1 to 5, the working unit A deploys the left and right fertilizer storage portions 28 for storing the fertilizer with the largest consumption per unit area on the front side, and Deploy the left and right seed reservoirs 24 that store seed pods that consume the next largest amount of fertilizer, and the amount of consumption per unit area is the largest in the space between the left and right seed reservoirs 24 and the left and right fertilizer reservoirs 28 Three drug reservoirs 33 with narrow width in the front and back direction for storing less drug are provided.

That is, by arranging each fertilizer storage unit 28 storing the fertilizer with the largest consumption per unit area on the front side of the working unit A on the traveling vehicle side, fertilizer supply to each fertilizer storage unit 28 is performed. This can be easily performed from the traveling vehicle 1 without getting off the traveling vehicle 1.
In addition, various child storage units 24 are disposed at the rear side of the work unit A, which is the rear end side of the passenger direct seeding machine, which stores various seed storage units 24 that store seed pods whose consumption per unit area is second to fertilizer. Supply of seeds to 24 can be easily performed from the rear of the machine.

  In addition, while each fertilizer storage unit 28 is disposed on the front side of the medicine storage unit 33 as described above, the fertilizer supply unit 31 is on the rear side of the medicine supply unit 36 as described above. By deploying, the respective fertilization hoses 30 and the respective medication hoses 35 across the corresponding ones cross each other in a side view.

  As shown in FIGS. 3-7, each child storage part 24 is provided with the seed hopper 24A which has a seed replenishment port in an upper end part, and lid 24B for seed hoppers which open and close a seed replenishment port. Each fertilizer storage unit 28 includes a fertilizer hopper 28A having a fertilizer supply port at the upper end, and a cover 28B for the fertilizer hopper that opens and closes the fertilizer supply port. Each medicine storage unit 33 includes a medicine hopper 33A having a medicine supply port at the upper end, and a cover 33B for the medicine hopper which opens and closes the medicine supply port.

  The direct seeding apparatus 15 supports the various child delivery parts 25 by the above-described low back support frame 23 so that the entire various child storage parts 24 connected to the upper end of the corresponding seed delivery parts 25 have a height before It is configured to be lower than the upper end of the support frame 22. Also, the lid 24B for various types of child hoppers opens the seed supply port of the corresponding seed hopper 24A by the forward swinging displacement, and closes the seed supply port of the corresponding seed hopper 24A by the backward swinging displacement. It is configured to swing back and forth. As a result, it is possible to facilitate the replenishment of seeds from the rear of the machine to the various child storage sections 24.

  The medication apparatus 17 supports each medicine delivery part 34 on the upper part of the front support frame 22 of the height mentioned above, and the whole of each medicine storage part 33 connected to the upper end of the corresponding medicine delivery part 34 stores various It is configured to be positioned above the upper end of the portion 24. Also, the lid 33B for each medicine hopper opens the medicine replenishment port of the corresponding medicine hopper 33A by the forward swing displacement, and closes the medicine refill opening of the corresponding medicine hopper 33A by the backward swing displacement. It is configured to swing back and forth. Furthermore, each medicine hopper 33A is configured such that the upper end portion provided with the medicine supply port is inclined rearward and downward. As a result, it is possible to easily replenish the medicine storage section 33 with the medicine from the rear of the machine body without being hindered by the various child storage sections 24 and while using the various child storage sections 24 for the mounting table. .

  The fertilizer application device 16 connects each fertilizer delivery unit 29 connected to the lower end of the corresponding fertilizer storage unit 28 so that each fertilizer storage unit 28 is positioned above the each drug storage unit 33 in the front support frame 22 of height. By supporting the upper end portion, each fertilizer reservoir 28 is configured to be located at the top of the operation unit A. When the working unit A is raised to the upper limit position, the fertilizer supply port formed at the upper end of each fertilizer hopper 28A is configured to approach the upper end of the handrail 13 provided at the rear of the traveling vehicle body 1 doing. In addition, the cover 28B for each fertilizer hopper is opened to the corresponding fertilizer hopper of the fertilizer hopper 28A by the backward swing displacement, and the corresponding fertilizer hopper of the corresponding fertilizer hopper 28A is closed by the forward swing displacement. It is configured to swing back and forth. Thereby, fertilizer supply to each fertilizer hopper 28A can be easily performed from the traveling vehicle body 1, and the operation can be further facilitated by raising the work unit A to the upper limit position.

  And in said structure, by arrange | positioning so that arrangement | positioning height may become low so that each storage part 24, 28, 33 arrange | positioned in order back and forth in the working unit A is located in the back side of the working unit A, The center-of-gravity position of the working unit A can be moved to the traveling vehicle side. Thereby, the stability of the weight balance as a passenger direct seeder can be improved.

  Further, since each fertilizer delivery part 29 of the fertilizer application device 16 and each medicine delivery part 34 of the medication delivery device 17 are supported by the front support frame 22, a support frame dedicated to the fertilizer delivery part and a support frame dedicated to the drug delivery part The configuration can be simplified by reducing the number of parts as compared to the case of providing them individually.

  As shown in FIG. 3 and FIG. 4, the working unit A holds the lid 24B for the corresponding seed hopper in the backward inclined posture for opening the seed supply port, and the corresponding medicine hopper And a second holder 45 for holding the lid 33B in a rearward inclined position in which the drug supply port is opened.

  Each first holder 44 is configured in a hook-and-loop fashion from the first joint member 44A stuck to the corresponding medicine hopper 33A and the second joint member 44B stuck to the lid 24B for the corresponding seed hopper . Also, each second holder 45 is configured in a hook-and-loop manner from the first joining member 45A attached to the corresponding fertilizer hopper 28A and the second joining member 45B attached to the lid 33B for the corresponding medicine hopper. ing.

  From the above configuration, while the various child storage parts 24 are configured to include the lid 24B that opens and closes the seed supply port by back and forth rocking, the front side closer to the respective medicine storage parts 33 makes the various child storage parts 24 closer to each medicine storage part 33 Can be deployed at Furthermore, while each medicine storage unit 33 is configured to include the lid 33B that opens and closes the medicine supply port by back and forth rocking, the medicine storage unit 33 and the various child storage units 24 are made closer to the fertilizer storage unit 28. Can be deployed in the front position. As a result, the position of the center of gravity of the working unit A can be moved to the side of the traveling vehicle body, and the weight balance as a whole for the direct seeder for riding can be improved.

  As shown in FIG. 3, FIG. 4 and FIG. 7, the direct-sowing system has a configuration in which the medicine dosing device 17 drops and supplies the seed pod fed by the various feeding units 25 toward the field mud surface located directly below the various feeding units 25. With respect to the device 15, the drug supply unit 36 corresponding to the position substantially directly below each drug delivery unit 34 is deployed, and each of the dosing hoses 35 extending from the corresponding drug delivery unit 34 to the drug supply unit 36 is suspended in a substantially straight line. By adopting the configuration, the seeding position of the direct seeding device 15 in the longitudinal direction of the airframe and the dosing position of the dosing device 17 can be easily aligned.

  As shown in FIG. 3 to FIG. 7 and FIG. 12, the transmission device 18 of the working unit A has an input unit 46 for receiving the power from the traveling vehicle body 1 transmitted through the external transmission shaft 27 etc. A power distribution shaft 47 that distributes left and right from 46, a low speed transmission system 48 that transmits low-speed power from the left end of the power distribution shaft 47 to the various feeding parts 25 of the direct seeding device 15, a fertilization device from the right end of the power distribution shaft 47 A high-speed transmission system 49 for transmitting high-speed power to each of the 16 fertilizer delivery parts 29 and 3 for interlockingly connecting the corresponding two seed delivery parts 25 and two medicine delivery parts 34 in the direct seeding device 15 and the dosing device 17 Interlock mechanism 50, etc. are provided.

  That is, since the low-speed motive power of low-speed power transmission via the low-speed transmission system 48 causes the various child feeding units 25 of the direct seeding apparatus 15 and the medicine feeding units 34 of the medication device 17 to operate at low speed. It becomes easy to match the delivery timing of the medicine and the delivery timing of the medicine by each medicine delivery part 34 of the medication apparatus 17. As a result, it becomes easy to align the seeding position of the direct seeding device 15 in the longitudinal direction of the airframe with the dosing position of the dosing device 17. And since it is easy to match the seeding position in the front-back direction of a body, and the administration position, it becomes possible to supply a small amount of chemical | medical agents stably near a seed pod. As a result, it is possible to effectively obtain medicinal effects such as prevention of diseases and insects against seed meal while reducing the dose.

  When the fertilizer delivery part 29 of the fertilization device 16 and the drug delivery part 34 of the medication delivery device 17 are interlocked, the seeding position of the direct seeding device 15 in the longitudinal direction of the machine and the administration position of the delivery delivery device 17 are matched. It is possible to eliminate the need for the speed reduction structure that is required, and thereby the configuration of the transmission 18 can be simplified.

  As shown in FIGS. 3 to 7 and FIGS. 12 to 14, in the transmission 18, the low speed transmission system 48 decelerates the power from the power distribution shaft 47 after decelerating from the chain reduction mechanism 51 and the chain reduction mechanism 51. First left relay shaft 52 for extracting power, six first fraction clutches 53 provided on the first relay shaft 52, and six first power transmissions from the corresponding first fraction clutch 53 to the seed feeding portion 25 1 gear type transmission mechanism 54, etc. are provided.

  The high-speed transmission system 49 includes a first conversion mechanism 55 that converts the rotational motion of the power distribution shaft 47 into an oscillating motion, and a second conversion mechanism 56 that converts the oscillating motion after conversion by the first conversion mechanism 55 into a forward rotational motion. A second relay shaft 57 in the left-right direction that takes out the positive rotation movement after conversion by the second conversion mechanism 56 as a positive rotation power, three second fraction string clutches 58 provided in the second relay shaft 57, and each second The second gear type transmission mechanism 59 and the like are provided to transmit power from the fractional-row clutch 58 to the corresponding two fertilizer delivery units 29.

  Each interlocking mechanism 50 converts the rotational movement of the corresponding first gear type transmission mechanism 54 into an oscillating movement, and the oscillating movement after conversion by the first converting unit 60 as a forward rotational movement. A second conversion unit 61 is provided to convert, and the positive rotation motion after conversion by the second conversion unit 61 is transmitted to the corresponding two medicine delivery units 34 as a positive rotation power.

  In the power transmission device 18, the two left first half rim clutches 53 for switching the transmission to the two left seed feeders 25 and the two left drug feeders 34 are switched to the same operating state, The two left first center rail clutches 53 on the left and right center sides for switching transmission to and from the two seed delivery parts 25 and the two medicine delivery parts 34 on the left and right center sides switch to the same operating state, and the two right seed delivery parts 25 and The three first ones interlocking the corresponding two first fractional streak clutches 53 so that the two right first fractional streak clutches 53 switching on and off the transmission to the two right drug delivery parts 34 switch to the same operating state A link mechanism 62 is provided.

  In addition, the two left first half row clutches 53 and the left second half row clutch 58 for intermittently transmitting power to the left two feeders 29 switch to the same operating state, and The one fractional clutch 53 and the second fractional clutch 58 at the center on the left and right sides for transmitting and receiving the transmission to the two fertilizer delivery portions 29 on the central side switch to the same operating state, and the two first fractional clutches 53 on the right And interlocking the corresponding first linkage mechanism 62 and the second fractional streak clutch 58 so that the right second fractional streak clutch 58 switching on and off the transmission to the right two fertilizer delivery units 29 switches to the same operating state There are provided three second link mechanisms 63 for linking.

The work unit A distributes and disposes three control levers 64 capable of rocking operations in the left and right direction in the front upper portion of the sowing frame 14 in correspondence with the respective second half-stripe clutches 58.
Then, the operating state of the left second fractional streak clutch 58 is switched in response to the swinging operation of the left operating lever 64 in the left-right direction, and in accordance with the swinging operation of the left-right center operating lever 64 in the left-right direction. The operating state of the second half bar clutch 58 on the left and right center side is switched, and the operating state of the second half bar clutch 58 on the right is switched according to the swing operation of the right operating lever 64 in the left and right direction There is.

  That is, by operating each operating lever 64 arbitrarily from the traveling vehicle body 1, the working condition of the working unit A can be determined by operating the seed delivery unit 25, the fertilizer delivery unit 29, and the medicine delivery unit 34 Working condition, left four working condition to operate four seed feeding units 25 on left, fertilizer feeding unit 29 and medicine feeding unit 34, two seed feeding units 25 on left, fertilizer feeding unit 29 and medicine feeding units 34 Two left-handed working states to operate, four right-handed working states for operating the four seed feeding parts 25 on the right, the fertilizer feeding part 29 and the medicine feeding part 34, and two seed feeding parts 25 on the right and fertilizer feeding It is possible to switch to the right two-row operation state in which the unit 29 and the drug delivery unit 34 are operated.

  As shown in FIGS. 12 and 14, the working unit A has three spaces 65 extending between two adjacent medicine delivery parts 34 in a interlocking state from the two seed feeding parts 25 adjacent in a interlocking state. Have. Then, by using the spaces 65 effectively and arranging the interlocking mechanism 50 corresponding to each space 65, the working unit A can be miniaturized.

  As shown in FIG. 3, FIG. 4 and FIG. 8, the work unit A is in the form of a rake that grounds wrinkles and the like by each auxiliary wheel when the auxiliary wheel (not shown) is mounted inside the vehicle body of each rear wheel 6. The right and left leveling plates 66 are provided. Also, left and right mud removing covers 67 are provided to prevent the mud thrown up by the rear wheels 6 from depositing on the upper surfaces of the left and right leveling floats 19 located behind the rear wheels 6. Thereby, the leveling performance at the time of forward traveling for work can be enhanced.

  [Another embodiment]

[1] The paddy field work machine may be configured to have a mid-mount fertilization specification in which the fertilizer storage portion 28 and the fertilizer delivery portion 29 of the fertilization device 16 are provided at the rear of the traveling vehicle body 1. Moreover, it may be configured in a rear mount fertilization specification in which the fertilizer storage portion 28 and the fertilizer delivery portion 29 of the fertilization device 16 are equipped behind the main storage portion 24 of the main work device 15. Furthermore, the main working device 15, the fertilizing device 16, and the dosing device 17 may be provided in the walking type traveling vehicle body 1 to be configured as the walking type.

[2] As the traveling vehicle body 1, auxiliary wheels may be mounted on at least the inner side or the outer side of each of the left and right rear wheels 6.

[3] The work unit A may be configured to perform a plurality of articles such as 4 articles or 8 articles other than 6 articles. In addition, it may not be provided with the ground adjustment float 19. Furthermore, at least one of the medicinal soil covering member 42 and the fertilizing earth covering member 43 may not be provided.

[4] As the working unit A, each fertilizer supply unit 31 is fixedly equipped at the left and right outside areas in the left and right overhang areas provided at the front end side portion of the corresponding ground preparation float 19, and each medicine supply By mounting the portion 36 at a position near the right and left center in the left and right overhang regions of the corresponding ground adjustment float 19, the position where the corresponding fertilizer supply portion 31 and the medicine supply portion 36 are separated by a predetermined distance in the machine width direction It may be configured to be deployed on

[5] As the work unit A, a plurality of medicine supply units 36 are located in front of the plurality of main supply units 26 at a certain distance from the corresponding main supply unit 26 in the machine width direction. To deploy the plurality of fertilizer supply units 31 at a position forward of the plurality of medicine supply units 36 and at the same position in the lateral width direction of the corresponding main supply unit 26. It may be configured. Further, a plurality of medicine supply units 36 are disposed at a position forward of the plurality of main supply units 26 at the same position as the corresponding main supply unit 26 in the machine lateral width direction, and a plurality of fertilizers Even if the supply unit 31 is disposed at a position forward of the plurality of medicine supply units 36 and at a predetermined distance from the corresponding main supply unit 26 in the width direction of the vehicle body, Good.

[6] As the work unit A, a support frame dedicated to a fertilization apparatus and a support frame dedicated to a medication apparatus may be erected on the main frame 21 connected to the link mechanism 3.

[7] The main work device 15 includes a seedling platform as a main storage unit 24 for seedlings, a plurality of star wheel type or belt type seedling vertical feed mechanisms as a plurality of main feeding units 25 for seedlings, and A seedling planting apparatus may be employed that includes a plurality of crank-type or rotary-type planting mechanisms as the plurality of main supply units 26 for seedlings. In addition, the seed coat which has been treated with the carpar coating, the seed root which has not been subjected to the coating treatment, or the seed may be sown in the field such as wheat or vegetables.

[8] The fertilizer application device 16 may be configured to supply fertilizer such as powder or liquid to the field. Moreover, it may be comprised so that fertilization may be performed by spreading | diffusion, dripping, etc. for every operation | work row | line, without providing the groover 32 for fertilization in each fertilizer supply part 31. FIG.

[9] As the fertilizing device 16, when the work unit A is raised to the upper limit position, the fertilizer supply port formed at the upper end of each fertilizer hopper 28A is the upper end of the handrail 13 provided at the rear of the traveling vehicle body 1. It may be configured to be positioned higher than the above.

[10] Even if the fertilizer application unit 16 is provided with the plurality of fertilizer supply units 31 configured in a grooved type on the ground adjustment float 19 so as not to overlap the swing fulcrum 41 of the ground adjustment float 19 in side view Good.

[11] The dispensing device 17 may be configured to supply a drug such as particulate or liquid to the field. In addition, each medicine supply unit 36 may be configured to perform medicine application by spraying or dripping for each work strip without providing the medicine groove unit 37 for medicine.

[12] The drug dispensing device 17 may be disposed so low that the drug supply port provided on the upper portion of each drug storage unit 33 is positioned above the upper end of each main storage unit 24. Also, the drug supply port provided at the upper part of each drug storage unit 33 may be disposed so as to be located below the upper end of each main storage unit 24.

[13] As the medication unit 17, the medicine feeding units 36 are provided in the respective groove units 32 for fertilization located at the rear end of the rear end portion of the medication groove unit 37 provided thereon It may be disposed at a position closer to the front side of the machine so as to overlap the front end portion of the groove forming aid 38 in a side view.

[14] As the medication device 17, each medicine supply unit 36 may be provided on the ground adjustment float 19 so as to overlap the swing fulcrum 41 of the ground adjustment float 19 in a side view.

[15] The main storage section 24 includes a seed hopper 24A having a seed supply port at the upper end, and a lid 24B for the seed hopper which opens and closes the seed supply port by attaching and detaching to the seed hopper 24A. It is also good.

[16] The main reservoir 24 may be configured to store one row of seeds or seedlings, two rows of seeds or seedlings, or all rows of seeds or seedlings.

[17] The fertilizer storage portion 28 includes a fertilizer hopper 28A having a fertilizer supply port at the upper end, and a lid 28B for the fertilizer hopper which opens and closes the fertilizer supply port by attaching and detaching to the fertilizer hopper 28A. It is also good. In addition, one row of fertilizer, two rows of fertilizer, or all rows of fertilizer may be stored.

[18] The drug storage section 33 includes a drug hopper 33A having a drug supply port at its upper end, and a lid 33B for the drug hopper which opens and closes the drug supply port by attaching and detaching to the drug hopper 33A. It is also good. In addition, the medicine for one article, the medicine for two articles, or the medicine for all articles may be stored. Furthermore, the upper end portion of the medicine hopper 33A may be configured to be horizontal.

[19] Engagement provided with a holder 44 for holding the lid 24B for the seed hopper in a backward inclined posture for opening the seed supply port on either the seed hopper 24A or the lid 24B for the seed hopper You may comprise from a member and the to-be-engaged member with which another side was equipped.

[20] An engagement provided with a holder 45 for holding the lid 33B for the medicine hopper in a backward inclined posture for opening the medicine supply port on either one of the medicine hopper 33A and the lid 33B for the medicine hopper You may comprise from a member and the to-be-engaged member with which another side was equipped.

[21] As shown in FIGS. 15 and 16, at least one of the fertilizing groove 32 and the medication groove 37 is made of an upper member such as stainless steel as a first member which can not be elastically deformed. 70 and the lower member 71 made of resin or the like as the second member elastically deformable in the groove width direction, and the lower member 71 cuts with a narrow groove width when the groove load increases, And, when the groove load is reduced, the groove may be formed with a wide groove width.
Then, in this configuration, as shown in the figure, the upper end of the lower member 71 is externally fitted to the lower end of the upper member 70 to elastically deform the lower member 71 in the direction of narrowing the groove width. The upper end of the lower member 71 may be configured to be limited by contacting with the lower end of the upper member 70.
Also, as shown in the same figure, the lower member 71 may be integrally formed with the groove aiding device 38, 39 by using the groove aiding device 38, 39 connected to the groove forming device 32, 37 with resin. .

[22] At least one of the groover 32 for fertilization and the groover 37 for medication can be elastically deformed in the groove width direction with an inner member such as stainless steel as a first member that can not be elastically deformed. The second member has a double structure including an outer member made of resin or the like, and the outer member is grooved with a narrow groove width when the grooved load increases, and is a wide groove when the grooved load decreases. The groove may be grooved in width, and the elastic deformation of the outer member in the direction of narrowing the groove width may be limited by the contact of the outer member with the inner member.

[23] By making at least one of the groover 32 for fertilization and the groover 37 for medicine the whole made of an elastically deformable resin such as a rubber plate, it becomes narrow as the grooved load increases. The groove may be formed with a groove width, and may be formed with a wide groove width when the groove forming load decreases.

[24] At least one of the fertilizing groove 32 and the medication groove 37 is entirely made of an elastically deformable resin, and the fertilizer guide tube 30 or the drug guide tube 35 is formed on the upper part thereof. The bellows part connected to may be integrally formed.

[25] As shown in FIG. 17, each rearing float 19 is for fertilizing each rear end from the left and right overhanging region between the chemical treatment groove 37 and the fertilization groove 32. It may be configured to be provided with the left and right inter-groove adjusting parts 19C extending to a length located rearward of the groove forming apparatus 32 of FIG.

  According to this configuration, the field mud, which has entered the lower part of each leveling float 19 along with the forward traveling for working, forms the working groove 37 for medication by the working groove of the medication groove 37 accompanying the traveling at this time. Are pushed out to the left and right of the gutter, and are pushed to the left and right of the gutter 32 for fertilization by the gutters of the gutter 32 for fertilization, the gutter 37 for medication and the gutter 32 for fertilization Even if it becomes concentrated easily during lifting, the action from the groove forming unit 19C located between them makes it possible for the groove unit 37 for applying medicine and the groove unit 32 for applying fertilizer to Field mud can be prevented from rising.

  As a result, there is a decrease in the leveling performance due to the floating of the field mud floating between the drug producing groove 37 and the fertilizer applying groove 32 and the lifting of the lifted field mud onto the leveling float 19. It can be prevented.

  The present invention can be applied to a passenger direct seeding machine provided with a direct seeding device as a main work device, and a riding rice planter provided with a seedling planting device as a main work device.

15 main work device 16 fertilization device 17 dosage device 19 soiled float 19A 1st fixed part 19B 2nd fixed part 19C landed part between gutters 26 main supply part 31 fertilizer supply part 32 gutter for fertilization 36 medicine supply part 37 Groover for medicine 38 Grooving aid 41 Swinging fulcrum 42 Soil covering member for medicine 43 Soil covering member for fertilization 70 First member 71 Second member

Claims (10)

It has a main working device for sowing or planting, a fertilizing device and a dosing device, which are activated during forward travel for work;
The main work device aligns and arranges a plurality of main supply units for supplying seeds or seedlings to the field at regular intervals in the left-right direction,
The fertilizing device is provided with a plurality of fertilizer supply units for supplying fertilizer to a field at a position spaced apart from the corresponding main supply unit in the widthwise direction of the machine.
The medication device comprises a plurality of medicine supply units configured in a grooved manner for forming a groove on a muddy surface of a field by means of a medicine forming groove and supplying medicine in the groove with a corresponding main supply unit A paddy field work machine disposed at the same position in the width direction and forward in the longitudinal direction of the machine than the corresponding main supply unit .   The paddy field operation machine according to claim 1, wherein a plurality of medicine-applied soil covering members for backfilling each of the medicine application grooves formed by the plurality of medicine supply units are disposed at a rear position of the medicine supply unit. Each of the plurality of fertilizer supply parts is formed into a ditch type in which a ditch for fertilization is used to ditch a muddy surface of a field to supply fertilizer in the ditch;
It has a plurality of fertilization soil covering members that backs up each of the fertilization grooves formed by the plurality of fertilizer supply parts,
The plurality of medicine cover members extend from the first fixed portion provided on the opposite side to the fertilizing groove adjacent to the medicine groove to be backfilled in a slanting posture toward the medicine groove to be backfilled.
The plurality of fertilization soil covering members extend from the second fixed portion provided on the opposite side to the drug application groove adjacent to the fertilization groove to be backfilled with a slanting posture facing backward toward the fertilization groove to be backfilled. The paddy field work machine according to Item 2. Equipped with a leveling float for leveling the muddy surface of the field so that it can swing up and down,
Each of the plurality of fertilizer supply parts is formed into a grooved type in which grooves are formed on a muddy surface of a field by a groover for fertilization, and fertilizer is supplied into the grooves, and swinging of the ground adjustment float in side view The paddy field work machine according to any one of claims 1 to 3, wherein the leveling float is equipped with an arrangement overlapping the fulcrum. Equipped with a leveling float to level the muddy surface of the field,
The paddy field work machine according to any one of claims 1 to 4, wherein each of the plurality of medicine supply units is disposed at a front end side portion where the bottom surface of the ground adjustment float is warped. Equipped with a leveling float for leveling the muddy surface of the field so that it can swing up and down,
The paddy field work machine according to any one of claims 1 to 3, wherein each of the plurality of medicine supply units is equipped on the ground adjustment float in an arrangement overlapping the swing fulcrum of the ground adjustment float in a side view. Each of the plurality of fertilizer supply parts is formed into a ditch type in which a ditch for fertilization is used to ditch a muddy surface of a field to supply fertilizer in the ditch;
Each of said fertilizing furrows comprises a furrowing aid which extends forward from their front end to assist the furrowing with the furrowing furrower,
The each one of the said several chemical | medical agent supply parts is arrange | positioned in the position which the rear-end part of the groover for said medicines overlaps with the front-end part of the said grooved auxiliary tool by a side view. Work machine described in the above.   Each of the groove forming devices is formed so as to be elastically deformable in the groove width direction so that the groove is formed with a narrow groove width when the groove forming load is large and is formed with a wide groove width when the groove forming load is small. The paddy field work machine according to any one of claims 1 to 7.   Each of the groove forming devices includes a first member which can not be elastically deformed and a second member which can be elastically deformed in the groove width direction, and the first member is disposed inside the second member so as to have a groove width. 9. A paddy field work machine according to claim 8, wherein elastic deformation of the second member in the direction of narrowing is restricted by contact with the first member. Equipped with a leveling float to level the muddy surface of the field,
The plurality of fertilizer supply parts are formed in a grooved manner in which grooves are formed on the muddy surface of the field by a groover for fertilization, and the fertilizer is supplied in the grooves;
The leveling float is equipped with the medication groove and the fertilization groove,
The leveling float is formed between the groovers in which the rear end is positioned rearward of the groover for fertilization between the groover for applying the medication and the groover for applying fertilizer. The paddy field work machine according to any one of claims 1 to 9, further comprising:

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