JP3585447B2 - Rice transplanter fertilizer - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fertilizer application device for a rice transplanter configured to be able to embed a powdery or granular drug together with a fertilizer in a field.
[0002]
[Prior art]
As the fertilizer, for example, as disclosed in Japanese Patent Application Laid-Open No. 2000-83427, a powdery and granular fertilizer stored in a fertilizer hopper and a powdery and granular drug stored in a drug hopper are each separately fed by rotation. It has been known that a predetermined amount is fed out by a mechanism, the fed fertilizer and chemicals are wind-transferred toward a seedling planting device through a common supply hose, and supplied to a groove generator provided for each planting strip. I have.
[0003]
[Problems to be solved by the invention]
[0004]
In the fertilizer applicator, the structure is complicated because a structure for feeding the fertilizer and the drug by separate feeding mechanisms is adopted. Also, the medicine hopper is mounted in the fertilizer hopper, but since the feeding mechanism for the drug is attached outside the feeding mechanism for the fertilizer, the fertilizer hopper must be formed with an opening through which the drug hopper passes. When performing fertilization only, removing the drug hopper in order to increase the amount of fertilizer stored, it is necessary to close the opening for drug hopper penetration formed in the fertilizer hopper, and specification changes are troublesome. Had become.
[0005]
The present invention has been made in view of such a point, and a main object of the present invention is to make it possible to easily feed out and supply a chemical using a fertilizer.
[0006]
[Means for Solving the Problems]
[Configuration, operation, and effect of the invention according to claim 1]
[0007]
(Structure) The invention according to claim 1 is a fertilizer application device of a rice transplanter configured to feed out a granular fertilizer stored in a fertilizer hopper by a feeding mechanism and supply the fertilizer to a ditcher provided in a seedling planting device. A drug hopper for storing powdery and granular drugs in the fertilizer hopper is detachably provided, and a lower end outlet of the drug hopper faces a part of a feeding roll in the feeding mechanism. A plurality of types of rolls with different feeding amounts per unit rotation are formed in parallel in the roll axis direction at the drug feeding part of the feeding roll, and each roll can be opened and closed independently by a shutter. Configured to
A bendable slide shutter plate for opening and closing the lower end outlet of the medicine hopper is mounted so as to be vertically slidable along the outer surface of the medicine hopper .
[0008]
(Action) According to the above configuration, by mounting the medicine hopper in the fertilizer hopper, the fertilizer and the medicine can be fed using a common feeding mechanism, and a specification for performing fertilization and drug application simultaneously can be obtained. Also, by removing the medicine hopper, it is possible to return to the specification in which only fertilization is performed.
[0009]
While the amount of fertilizer applied per unit area is changed and adjusted depending on the type of fertilizer, etc., the amount of sprayed chemical per unit area is generally constant, and the number of rotations of the feeding roll per unit time is changed. If the amount of fertilization is adjusted in this manner, the amount of the application using the same feeding roll will be changed. In such a case, the usage pattern of the plurality of roll portions for drug application can be changed to reduce the change in the dose. For example, in the case where two types of roll portions for drug application are provided, when the rotation speed of the feeding roll is increased to set a large amount of fertilization, a roll portion with a large feeding amount is closed and a roll portion with a small feeding amount is set. When setting the fertilizer application amount to a medium amount by lowering the rotation speed of the feeding roll, only the roll portion with a small feeding amount is closed and only the roll portion with a large feeding amount is used. When setting the fertilizer rate to a small value by further reducing the rotation speed of the roll, the roll portion with a small feed amount and the roll portion with a high feed amount are both opened, so that the change in the applied amount regardless of the change in the rotation speed of the feed roll. It can be reduced.
[0010]
(Effects) Therefore, according to the first aspect of the present invention, since fertilization and application are performed by a common feeding mechanism, the feeding structure is simplified and inexpensive as compared with the conventional structure in which fertilization and application are performed by separate feeding mechanisms. In addition, it was possible to easily switch between the specification only for fertilization and the specification for simultaneous application of fertilization and application of medicine, resulting in excellent practicality.
[0011]
In addition, even if the rotation speed of the dispensing roll is changed to change the amount of fertilization while the dispensing mechanism is shared, it is possible to suppress the change in the dispensed amount by using multiple roll parts for dispensing, which is excellent in usability. It has become.
( Operation ) In addition, according to the above configuration, by operating the slide shutter plate to close the lower end outlet of the medicine hopper and then removing the medicine hopper, the remaining medicine can be collected without spilling. In this case, since the bendable slide shutter plate is mounted so as to be vertically slidable along the outer surface of the hopper, the lower end outlet of the medicine hopper can be opened and closed by operating the upper end of the slide shutter plate.
Therefore, the lower end outlet of the medicine hopper, which is out of reach, can be easily opened and closed by operation on the upper outside of the hopper, and the handleability is excellent.
[0012]
[Configuration, operation, and effect of the invention according to claim 2]
[0013]
(Structure) The invention according to claim 2 is the fertilizer applicator for a rice transplanter according to claim 1, wherein the feeding recesses are formed at the same pitch in the circumferential direction on the outer periphery of each roll portion for medicine, and each roll portion is formed. Are characterized in that the phases in the circumferential direction of the feeding concave portions are shifted from each other.
[0014]
(Operation) According to the above configuration, when the rotation speed of the feeding roll is set to be low in order to reduce the amount of fertilization, the drug is fed out using a plurality of roll portions for drug administration together in order to suppress a decrease in the dose. In this case, since the phases in the circumferential direction of the feeding concave portion in the plurality of roll portions are shifted, the pitch in the circumferential direction of the feeding concave portion as the whole of the plurality of roll portions for drug application becomes small. Even if the rotation speed of the delivery roll is low, the medicine delivery is close to continuous delivery with a short interruption time.
[0015]
(Effects) Therefore, according to the second aspect of the present invention, even when the rotation speed of the feeding roll is set to be low in order to reduce the amount of fertilization, it is possible to perform the medicine with excellent continuity, and to perform uniform medicine. Thus, the occurrence of phytotoxicity can be avoided beforehand.
[0016]
[Structure, operation and effect of the invention according to claim 3]
[0017]
(Structure) The invention according to claim 3 is the fertilizer applicator for a rice transplanter according to claim 1 or 2, wherein a net body for preventing the flow of fertilizer lump is attached to a lower part in the fertilizer hopper. It is characterized in that the lower part of the medicine hopper is configured to penetrate and support the opening formed by cutting out the mesh body.
[0018]
(Function) According to the above configuration, the lower end of the medicine hopper is penetrated and supported by the mesh so that the position of the lower end of the medicine hopper is stabilized, and the lower end exit of the medicine hopper is correctly opposed to the dispensing roll portion of the dispensing roll. As a result, the medicine and the fertilizer can be correctly flowed down to a predetermined portion of the feeding roll.
[0019]
(Effects) Therefore, according to the invention of claim 3, the lower end outlet in the medicine hopper can be accurately positioned with a simple structure that effectively utilizes the fertilizer application network provided in the fertilizer hopper, thereby achieving good Fertilization and drug application became possible.
[0020]
[0021]
[0022]
[0023]
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows a side view of a riding rice transplanter equipped with a fertilizer applicator configured in a six-row planting specification, and FIG. 2 shows a plan view of the rice transplanter. In this rice transplanter, a six-row planting seedling planting device 7 is hydraulically driven at the rear of a traveling machine body 3 that is driven by four-wheel drive with a steerable front wheel 1 and a non-steerable rear wheel 2. It has a basic structure in which the fertilizer applicator A is provided at the rear of the driver's seat 27 while being connected so as to be able to go up and down via a lifting link mechanism 6. An engine E is mounted on a front portion of the traveling body, and its output is transmitted to a hydrostatic continuously variable transmission (HST) 5 capable of switching between forward and reverse, and the shift output is input to a transmission case 4. After further gear shifting, the power is transmitted to the front wheel 1 and the rear wheel 2, and the working power taken out of the transmission case 4 is transmitted to the seedling planting device 7 via the transmission shaft 70. .
[0025]
The seedling placement device 7 has a set 12 of seedlings on which seedlings are placed and reciprocally moves sideways with a constant stroke, and six sets of rotary type seedlings, each of which is cut out from the lower end of the set 12 and planted. A planting mechanism 9 and three leveling floats 11 for leveling the planned planting location in the field are provided, and two sets of planting mechanisms 9 are provided on the left and right of the rear of three planting cases 8 arranged in parallel. Have been installed.
[0026]
Next, the fertilizer applicator A will be described. As shown in FIGS. 1 to 7, the fertilizer applicator A includes a fertilizer hopper 13 for storing powdered and granular fertilizer, four sets of feeding mechanisms 15 for feeding a predetermined amount of fertilizer from the fertilizer hopper 13, The supply hoses 14 leading to the six groovers 52 attached to the leveling float 11 of the seedling planting device 7, the electric blowers 16 for sending the carrier air to the respective supply hoses 14, and the carrier air generated by the electric blowers 16 are applied to the fertilizing hoses 14. , And an air supply duct 17 for distributing and supplying the air. The fertilizer applicator A is configured so that fertilization and drug application can be performed simultaneously by mounting a small drug hopper 91 storing the drug in the fertilizer hopper 13.
[0027]
As shown in FIGS. 11 and 19, the feeding mechanism 15 is configured as a unit with two sections, and the left and right ends of the four sets of the feeding mechanisms 15 perform the feeding with two sections, and the center 2 As will be described later, the set is fed out by only one of the two feeds, so that a total of six feeds are performed while using four sets of feed mechanisms 15 in units of two. I have.
[0028]
Each feeding mechanism 15 has a structure in which a feeding roll R having a plurality of feeding recesses a formed on the outer periphery at a predetermined pitch along a circumferential direction is supported in a roll case 18 so as to be rotatable around a horizontal horizontal axis. The driven gear 19 </ b> G provided at the outer end of the feeding roll R is rotatably driven by being engaged with the drive gear 21 </ b> G of the drive shaft 21. In addition, a brush 22 for sliding-off works on the outer periphery of the feeding roll R to stabilize the feeding amount.
[0029]
The unwinding roll R has three sets of roll portions r1 to r3 having different unwinding amounts per rotation, and two sets (six) of roll portions r1 to r3 are symmetrically arranged side by side. It has a structure in which the driven gear 19G is externally fitted to and rotatable integrally with the hollow roll shaft 19 provided with the driven gear 19G. Here, the feeding amount per rotation of the three roll portions r1 to r3 per one turn is the largest in the outermost roll portion r1, the second largest in the innermost roll portion r2, and the largest in the middle roll portion r3. The least set. As shown in FIG. 13, the feeding recesses a formed on the outer periphery of the two inner roll portions r2 and r3 are arranged at the same pitch (60 ° in this example). The phases are shifted from each other by a half pitch (30 ° in this example).
[0030]
The roll case 18 has a vertically divided structure of an upper case 18A connected to the lower end of the fertilizer hopper and a lower case 18B connected to the lower end of the upper case 18A. The front ends of the outlet pipes 18C are inserted and connected to the air ducts 17, respectively, and the supply hoses 14 are connected to the rear ends of the outlet pipes 18C. Further, the feeding roll R is supported so that the axis of the roll shaft 19 is positioned on the division surface of the roll case 18, and the lower case 18B is detached from the upper case 18A to easily remove the feeding roll R. Can be done. In addition, in the central two sets of feeding mechanisms 15 that feed out one feed, the supply hose 14 is connected to only one of the two outlet pipes 18C, and the rear end of the outlet pipe 20 that stops feeding is a cap 20. Closed. Each roll case 18 is formed with a discharge port 71 which is opened and closed by a swing shutter 72 and connected to a discharge hose 73 so that the fertilizer remaining in the fertilizer hopper 13 can be discharged and collected in the lower abdomen of the machine body. It is configured.
[0031]
The lower part of the upper case is narrowed down in a funnel shape. Inside the narrowed portion, five partition walls 24 slidingly contacting the outer periphery of each of the roll portions r1 to r3 of the feeding roll R are formed in parallel. As shown in FIG. 7, the six passages formed by the partition walls 24 can be independently opened and closed by shutters s.
[0032]
As shown in FIG. 15, each shutter s is configured by connecting a handle 25 made of a bar to one end of a shutter plate 26 made of a thin stainless steel plate that can be elastically deformed, and protrudes from the roll case 18. When the handle 25 is pushed in, the shutter plate 26 is bent and deformed along the inner surface of the case and is pushed up and retracted to open the passage, and when the handle 25 is pulled out, the passage is closed by the shutter plate 26. .
[0033]
Therefore, by selectively opening and closing three shutters s for one line and selecting and combining the roll portions r1 to r3 used for feeding, the feeding amount can be adjusted in five stages. As shown in FIG. 19, this five-stage adjustment can be used in the case of a specification in which the chemical hopper is removed and only fertilization is performed. The amount is adjusted by changing the rotation speed of the feeding roll R. In addition, in the central two sets of feeding mechanisms 15 that feed one line, one shutter can be stopped by closing all three shutters s on one side, and the cap 20 is attached to the outlet pipe 18C. This prevents wasteful outflow of the transport wind.
[0034]
The adjustment of the feeding amount can be performed by changing the connection position between the passive arm 39 and the push / pull rod 40 in the longitudinal direction of the arm, in addition to the above-described means. In other words, the closer the connection position between the passive arm 39 and the push / pull rod 40 is to the arm axis, the larger the swing angle of the passive arm 39 with respect to the stroke of the push / pull rod 40, and the number of roll rotations per unit time is reduced. (The roll rotation speed increases), and the payout amount increases. Conversely, as the connecting position between the passive arm 39 and the push / pull rod 40 is further away from the axis of the arm, the swing angle of the passive arm 39 with respect to the stroke of the push / pull rod 40 becomes smaller, and the number of roll rotations per unit time (Roll rotation speed becomes slow), and the feeding amount increases.
[0035]
The fertilizer hopper 13 is made of a see-through resin made by integrally forming a large-capacity hopper portion 13a for two rows located at the left and right ends and a pair of small-capacity hopper sections 13b located inside. It is configured. The small-capacity hopper portion 13b has a front portion recessed from the large-capacity hopper portion 13a, and a rear portion of the driver's seat 27 enters and is disposed here. In this way, by introducing the fertilizer hopper 13 whose central portion is recessed, the fertilizer applicator A can be compactly deployed without a large space between the seedling rest 12 and the operation unit, and the overall length of the machine can be reduced. It is planned. Further, a lid 28 provided at the upper end of the fertilizer hopper 13 is an integrally formed product over the entire width of the hopper, and is swingably opened and closed around a fulcrum Z provided at a rear portion as shown in FIG. The rear wall of the fertilizer hopper 13 is provided with an optical sensor 62 for detecting the remaining amount of the fertilizer in each of the hopper portions 13a and 13b.
[0036]
The drive structure of the feeding mechanism 15 will be described. As shown in FIGS. 4 to 7, one drive shaft 21 composed of a hexagonal shaft is rotatably supported over the rear portion of each of the four roll cases 18. A gear 21G is externally fitted so as to be relatively rotatable. A meshing fertilizer application clutch 33 is interposed between the drive shaft 21 and the drive gear 21G. By turning on and off the fertilizer application clutch 33, each feeding mechanism 15 can be independently turned on and off. Has become. These fertilizer application clutches 33 are linked to three fertilizer application clutch levers 32 disposed near the lateral side of the driver's seat 27, and fertilizers are applied in accordance with the planting stalls that are suspended in the case of a few plantings near the ridge. When the vehicle is stopped, the clutch is disengaged. The central fertilizing clutch lever 32 is linked to the fertilizing clutches 33 in the central two sets of feeding mechanisms 15 for feeding one by one, and each fertilizing clutch lever 32 can stop fertilizing by two rows. It has become.
[0037]
As shown in FIGS. 1 and 4, a transmission shaft 35 for driving rear wheels for transmitting power from the transmission case 4 to a rear axle case 34 at the rear of the vehicle body is arranged below the traveling body 3. A power take-out case 36 for distributing power from 35 to the fertilizer applicator A is provided. The power take-out case 36 is provided with a crank arm 37 that is driven to rotate around the horizontal axis by receiving the power of the traveling system, and the crank arm 37 and a passive arm provided on the drive shaft 21 for driving the feeding mechanism. The arm 39 is interlocked and connected via a push / pull rod 40, and the passive arm 39 is reciprocally oscillated with the rotation of the crank arm 37. By driving the fertilizer applicator A with the power of the traveling system in this way, even if the running speed is changed or the planting pitch (between plants) in the seedling planting apparatus 7 is changed, the amount of fertilizer per unit traveling distance, that is, Therefore, the fertilizer application amount per unit area can be maintained at the adjusted set amount.
[0038]
As shown in FIGS. 8 and 9, the passive arm 39 and the drive shaft 21 are linked to each other via a one-way drive mechanism 41, and the drive shaft 21 is kept constant by each of the forward and backward movements of the passive arm 39. It is configured to continuously rotate pulsatingly in a direction (clockwise in the figure). Here, the one-way drive mechanism 41 includes a first one-way clutch 42 that transmits only the clockwise swing of the passive arm 39 to the drive shaft 21, an operation arm 43 attached to the drive shaft 21, and a swing of the passive arm 39. And a second one-way clutch 45 for transmitting only the clockwise swing of the operation arm 43 to the drive shaft 21, and transmitting the passive arm 39 forward and backward. The drive shaft 21 is always rotated clockwise by the movement and the backward movement, and the feeding roll is sequentially driven to rotate by a predetermined angle in a fixed direction (counterclockwise in the drawing).
[0039]
Next, a structure in which the chemical hopper 91 is attached to the fertilizer hopper 13 and fertilization and drug application are performed simultaneously will be described. As shown in FIGS. 7 and 10, the medicine hopper 91 has a hopper body 91 </ b> A formed by resin in a shape in which the upper end is opened and the lower part is narrowed, and is vertically swingable via a fulcrum shaft 92 at the upper end. The fulcrum shaft 92 is fixed to a support arm 93a of a mounting bracket 93 hooked and mounted on the upper end of the rear wall of the fertilizer hopper 13 by connecting the pivot shaft 92 to the four fertilizers. The hopper 91 is suspended and supported inside the two large-capacity hoppers 13a and the two small-capacity hoppers 13b of the fertilizer hopper 13, respectively.
[0040]
A projecting portion 94 is integrally formed at the left and right center of the upper end of the front surface of the hopper main body 91A, and a lock piece 95 that can be elastically deformed is connected to the front end of the lid 91B. Are elastically engaged with the protruding portions 94 so that the closed state is maintained.
[0041]
As shown in FIG. 16, the lower portion of the hopper body 91A is narrowed down to a small width, and a pair of left and right outlets 90 for drug flow are formed at the lower end of the narrowed portion 91C, and the lower end outlet 90 is opened and closed. A slide shutter plate 96 is provided along the front outer surface of the hopper main body 91A. The slide shutter plate 96 is made of a thin stainless steel plate that is easily elastically deformed, and has a structure in which a handle 97 formed by bending a bar is connected to the upper end thereof. The guide is slidable up and down along a concave groove m formed on the front surface of the hopper body 91A, and is also guided from the outside of the front surface by a guide plate 98 made of a metal plate provided and fixed on the front surface of the hopper body 91A. , So that it can slide up and down smoothly. The slide shutter plate 96 is configured to be bent and inserted into the hopper from the front surface at the lower end of the narrowing portion 91C to open and close the lower end outlet 90.
[0042]
The guide plate 98 is attached and fixed to the medicine hopper 91 with two upper and lower screws 99 with the handle 97 sandwiched between the guide plate 98 and the hopper front wall. These screws 99 guide the handle 197 in the vertical direction. It also functions as a guide member to be used.
[0043]
At the lower end of the narrowing portion 91C of the hopper main body 91A, a rubber boot 100 is externally fitted, and the lower part of the boot 100 is fitted to the partition wall 25 of the feeding mechanism 15, and the medicine flowing down from the lower end outlet 90. Is guided and supplied to four roll portions r2 and r3 on the center side of the feeding roll R. That is, one row of medicine flows down from each of the pair of left and right lower end outlets 90 formed in the medicine hopper 91 and is fed out by the two roll portions r2 and r3 on the center side, and is fed out by the outer roll portion r1. The fertilizer is mixed with the fertilizer and is led to the outlet pipe 18C. As shown in FIG. 12, one of a pair of left and right lower end outlets 90 formed in the medicine hopper 91 is closed by a boot 100 in the central two sets of the feeding mechanisms 15 that feed out one line at a time. Thus, the drug delivery for one line is performed.
[0044]
In the specification in which the fertilizer and the medicine are fed by the common feeding roll R, the change in the feeding amount of the fertilizer depends on the rotation speed of the feeding roll R. In this case, the amount of fertilizer applied per unit area is changed and adjusted depending on the type of fertilizer, etc., whereas the amount of sprayed chemical per unit area is generally constant, and the rotation of the feeding roll per unit time is generally large. If the number is changed and the amount of fertilization is adjusted, the amount of the medicine using the same feeding roll will change. In such a case, the usage of the two roll portions r2 and r3 used for feeding the medicine can be changed to reduce the change in the dose.
[0045]
For example, when setting a large amount of fertilization by increasing the roll rotation speed, the roll portion r2 with a large feed amount is closed by the shutter s, and only the roll portion r3 with a small feed amount is used. When setting the fertilizer amount to medium amount by dropping, close the roll part r3 with a small amount of feed and use only the roll part r2 with a large amount of feed, and set the fertilizer amount to a small amount by further reducing the roll rotation speed. In this case, by opening both the roll portion r2 with a large amount of dispensing and the roll portion r3 with a small amount of dispensing, it is possible to suppress a large change in the amount of drug dispensing irrespective of a change in the rotation speed of the dispensing roll R. is there.
[0046]
The lower part of the fertilizer hopper 13 is formed of resin in order to prevent the fertilizer lump that has absorbed moisture and solidified from flowing down to the feeding mechanism 15 and to prevent the fertilizer from flowing down due to the bridging phenomenon. A coarse mesh 55 is horizontally fitted via a locking claw 56. As shown in FIG. 19, when the chemical hopper 91 is detached and fertilization is performed only as shown in FIG. 19, the net 55 is formed in a grid shape as shown in FIG. In the specification in which the fertilizer application and the drug application are performed simultaneously with the attachment 91, as shown in FIG. 18, the net 55 is replaced with a net 55 having a large opening 57 that penetrates the narrowing portion 91C of the medicine hopper 91. Here, the opening 57 of the mesh body 55 is set to have a size that fits the narrowing-down portion 91C of the medicine hopper 91 and positions it to the left and right, so that the posture of the attached medicine hopper 91 is stably held. ing.
[0047]
In recent years, the use of organic fertilizers has been reconsidered in order to carry out the production of rice with excellent taste, and fertilizers in the form of pellets using rapeseed oil cake or the like have been used. This organic fertilizer has a larger particle size than a general chemical fertilizer, and it is expected that clogging is likely to occur with a conventional feeding mechanism, and that smooth and stable feeding is difficult. Therefore, when using such organic fertilizers in the form of pellets, as shown in FIG. 21, replace the roll case 18 from which the partition wall 24 has been removed in one section, and also make the feed roll R itself, It is preferable to replace the roll portion r4 provided with the horizontally extending feeding recessed portion a in which one line is formed as a series with a pair provided with a pair (two lines).
[Brief description of the drawings]
FIG. 1 is an overall side view of a riding type rice transplanter. FIG. 2 is an overall plan view of a riding type rice transplanter. FIG. 3 is a cross-sectional plan view of a fertilizer hopper. FIG. 4 is a rear view of a fertilizing device. Front view [FIG. 6] Side view of fertilizer applicator [FIG. 7] Side view with a part cut away of fertilizer applicator [FIG. 8] Side view showing drive mechanism of feed mechanism [FIG. 9] Cross-section showing drive mechanism of feed mechanism FIG. 10 is a vertical sectional side view of a feeding mechanism. FIG. 11 is a vertical sectional front view showing a two-row feeding portion. FIG. 12 is a vertical front view showing a single-row feeding portion. FIG. 14 is a plan view of a shutter opening / closing portion in a roll case. FIG. 15 is a perspective view of a shutter alone. FIG. 16 is an exploded perspective view showing a medicine hopper and a mounting structure thereof. FIG. 17 is a lower end of the medicine hopper. Fig. 18: Simultaneous application of fertilizer application and drug application FIG. 19 is a vertical cross-sectional front view showing a two-row feeding portion set to a specification for performing fertilization only. FIG. 20 is a plan view of a net used for fertilization specification. Longitudinal front view showing the feeding part modified to the specifications for fertilizer [Explanation of symbols]
7 Seedling planting device 13 Fertilizer hopper 15 Feeding mechanism 52 Grooving device 55 Net body 57 Opening 90 Lower end exit 96 Slide shutter plate a Feeding recess R Feeding roll r2 Roll portion r3 Roll portion s Shutter

Claims (3)

In the fertilizer of a rice transplanter configured to feed out the granular fertilizer stored in the fertilizer hopper by a feed-out mechanism and to supply the fertilizer to a ditcher provided to the seedling planting device,
A drug hopper for storing powdery and granular drugs in the fertilizer hopper is detachably provided, and a lower end outlet of the drug hopper faces a part of a feeding roll in the feeding mechanism. To be extended
In the drug delivery portion of the delivery roll, a plurality of types of roll portions having different delivery amounts per unit rotation are formed in parallel in the roll axis direction, and each roll portion is configured to be independently openable and closable by a shutter,
A fertilizer application device for a rice transplanter, wherein a bendable slide shutter plate for opening and closing a lower end outlet of the medicine hopper is vertically slidably mounted along an outer surface of the medicine hopper . It is a fertilizer of the rice transplanter of Claim 1, Comprising:
A fertilizer device for a rice transplanter, characterized in that feed-out recesses are formed at the same pitch in the circumferential direction on the outer periphery of each roll portion for medicine, and the phases of the feed-out recesses in each roll portion in the circumferential direction are shifted from each other. The rice transplanter fertilizer according to claim 1 or 2,
At the lower part in the fertilizer hopper, a net for preventing the flow of the fertilizer lump is mounted, and the lower part of the medicine hopper is configured to penetrate and support the opening formed by cutting out the net. Fertilizer application equipment for rice transplanters.

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