JP2002101715A - Granule feeder for rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To change a supply state to a supply stop state of a chemical by a simple operation for a short time. SOLUTION: In a fertilizing/chemical applying apparatus equipped with a first drawing out part k1 consisting of a fertilizing hopper 13 and a first drawing out mechanism kr1 for drawing out a fixed amount at a time and with a second drawing out part k2 consisting of a chemical applying hopper 91 and a second drawing out mechanism kr2 for drawing out a fixed amount at a time, the chemical applying hopper 91 provided with an outlet 90 for supplying a chemical to the second drawing out mechanism kr2 is detachably housed in the fertilizing hopper 13 and the fertilizing hopper 91 is furnished with a shutter 10 for freely opening and closing the outlet 90.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for supplying fertilizers, chemicals and the like in a rice transplanter.
A first dispensing unit including a first hopper for storing the first granular material, a first dispensing mechanism for dispensing the first granular material sent from the first hopper by a predetermined amount, and a second powder. A second hopper for storing granules, and a second hopper sent from the second hopper.
The present invention relates to a powder and granular material supply device provided with a second feeding section including a second feeding mechanism for feeding powder and granules by a predetermined amount.

[0002]

2. Description of the Related Art A conventional granular material supply apparatus is disclosed in
As disclosed in JP-A-83427, a mechanism for feeding a fertilizer (first granular material) and a mechanism for feeding a drug (second granular material) are provided, and a medicine hopper (second hopper) is provided. The medicine outlet at the lower end is housed in the fertilizer hopper in a state of being out of the fertilizer hopper (first hopper), and the fed fertilizer and the medicine are transferred by wind to the groove generator of the planting part through the common supply hose. Such is known.

[0003]

According to the above-mentioned prior art, the amount of fertilizer per unit time (fertilizer application amount) and the amount of chemical per unit time (fertilizer application amount) can be adjusted and set. However, since there was no mechanism for stopping the delivery of the medicine, when it was desired to spray only the fertilizer (relatively frequently), the medicine delivery mechanism was switched to the discharge state, and all the remaining medicine was completely discharged and the medicine remaining. The amount had to be emptied, and the discharging operation was troublesome and troublesome.

[0004] Since the second hopper is housed in the first hopper, if the lid of the second hopper is removed while the rice transplanter is running, fertilizer may be mixed into the chemical hopper or vice versa. The lid of the second hopper needs to be locked in the closed position because there is a possibility that the medicine may be mixed. However, the above-mentioned prior art does not disclose at all what to do about this point, and thus, the risk of contamination of fertilizer and chemicals has not been solved.

[0005] In the above-mentioned prior art powder and granular material supply apparatus,
Although the fertilizer hopper accommodated the drug hopper, the space was effectively used, but the fertilizer feeding mechanism and the drug feeding mechanism were separately configured and equipped. And the bulk material supply device tends to be bulky.

SUMMARY OF THE INVENTION In view of the above circumstances, an object of the present invention is to make it possible to switch between a supply state and a supply stop state of a medicine easily and in a short time. In addition, it is another object to ensure that the lid of the second hopper accommodated in the first hopper can be maintained in a closed state, and to downsize the granular material supply device.

[0007]

According to a first aspect of the present invention, there is provided a powder and granular material supplying apparatus for a rice transplanter, wherein a first hopper for storing the first granular material and a first hopper sent from the first hopper. A first dispensing unit composed of a first dispensing mechanism for dispensing the first granular material coming in a predetermined amount, a second hopper for storing the second granular material, and a second hopper sent from the second hopper. A second dispensing unit comprising a second dispensing mechanism for dispensing the granular material by a predetermined amount, a second hopper having an outlet formed at a lower end portion for extracting the second granular material to the second dispensing mechanism; A shutter is provided in the second hopper so as to be detachably housed in the first hopper and to be capable of opening and closing the outlet.

According to a second aspect of the present invention, in the granular material supply device of the rice transplanter, a first hopper for storing the first granular material and the first granular material sent from the first hopper are supplied in a predetermined amount. A first dispensing section comprising a first dispensing mechanism for dispensing each one;
A second dispensing section including a second hopper for storing the granular material and a second dispensing mechanism for dispensing the second granular material sent from the second hopper by a predetermined amount at a time; The second hopper is accommodated, and the upper surface of the second hopper is inclined to such an extent that the first granular material placed on the second hopper slides down due to gravity.

According to a third aspect of the present invention, in the granular material supply device of the rice transplanter, a first hopper for storing the first granular material and the first granular material sent from the first hopper are supplied in a predetermined amount. A first dispensing section comprising a first dispensing mechanism for dispensing each one;
A second dispensing section including a second hopper for storing the granular material and a second dispensing mechanism for dispensing the second granular material sent from the second hopper by a predetermined amount at a time; A self-container that accommodates the second hopper and functions so that the upper surface of the second hopper functions as an openable and closable lid, and the upper surface is locked and maintained at the closed position as the upper surface is moved to the closed position. A lock mechanism is provided.

According to a fourth aspect of the present invention, there is provided a powder and granular material supply device for a rice transplanter, wherein a concave portion for entering a granular material is formed on the outer periphery and the first feed roll is rotatable and rotatable; A first feeding mechanism for feeding the first granular material by a predetermined amount from a first scouring brush acting on the outer periphery of the feeding roll to regulate the entry of the body, and a concave portion for entering the granular material is provided on the outer periphery. A second feed roller formed and rotatable to rotate, and a second scrubbing brush acting on the outer periphery of the feed roll to regulate excessive entry of powder and granules into the concave portion;
A second feeding mechanism for feeding a second powder having a particle diameter smaller than the particle diameter of the first powder at a predetermined amount is constituted. The first and second scouring brushes are formed integrally with each other so as to be arranged in a straight line, and the brush implantation density of the second scrubbing brush is higher than that of the first scrubbing brush. Is set to.

According to a fifth aspect of the present invention, there is provided a powder supplying apparatus for a rice transplanter, wherein a recess for receiving the first powder is formed in the outer periphery, and a first rotatable rotatable two-row integrated first feeding roll is provided. And a drive-rotatable, two-integral type second feed-out roll part having a recess for entering the second powder and granules formed on the outer periphery thereof, and feeding them out in a state where their rotation axes are aligned. The lower end of the second hopper, which constitutes a roll and in which the outlet of the second granular material is formed, is connected via an adapter in which a second passage for the second granular material corresponding to the second feeding roll portion is formed. The second hopper is disposed in a state of being positioned immediately above the feeding roll, and the adapter is set in a fully opened state in which the two-part second particulate material passage is opened, and in the second particulate material passage. Of 1
It is characterized in that it can be freely switched to a half-open state in which the striations are closed.

According to the structure of the first aspect, since the second hopper accommodated in the first hopper is provided with the shutter capable of opening and closing the outlet of the powdery material formed at the lower end thereof, By closing the shutter, the supply of the second granular material can be stopped. Therefore, the state in which only the first granular material is extended and the state in which the first and second granular materials are extended can be realized by a simple operation of opening and closing the shutter. In addition, since the shutter is provided in the second hopper, it is preferable that there is no risk of being inadvertently forgotten or lost when carrying, compared to a case where the shutter is provided separately.

According to the second aspect of the present invention, the upper surface of the second hopper accommodated in the first hopper is inclined to such an extent that the first granular material placed on the first hopper slides down due to gravity. When the first granular material is loaded on the upper surface of the second hopper due to, for example, the replenishment of the first granular material into the first hopper or the traveling vibration, the first granular material is rolled down. It will not be left on the top and will be able to go out to the end.

According to the third aspect of the present invention, the closed state is automatically locked and maintained by operating the upper surface of the second hopper, which can be opened and closed, to the closed position by the self-locking mechanism. Therefore, it is possible to prevent the closed upper eave from opening due to vibration or the like. The second hopper is the first
If the upper surface of the second hopper, which should have been closed due to the vibration of the airframe or the like, is opened during traveling, the first and second particles may be mixed with each other. An effect can be obtained in which the fear can be eliminated by the self-locking mechanism described above.

According to the fourth aspect of the present invention, the first material roll and the second material roll are arranged side by side.
Since the feeding mechanism is constituted by a continuous feeding roll or a single feeding roll, the structure can be made compact as compared with a case where separate feeding rolls are provided, and a path for merging each powder and granule is provided. Also becomes unnecessary. And since the brush installation density of the scouring brush acting on the feeding roll is changed and set in accordance with the size of the particle diameter of the first and second powders, even if it is formed as a single brush, It is possible to prevent inconveniences such as powder particles slipping through the brush and inability to perform the cutting action.

According to the fifth aspect of the present invention, the first material roll and the second material roll are provided side by side.
Since the feeding mechanism is constituted by a continuous feeding roll or a single feeding roll, the structure can be made compact as compared with a case where separate feeding rolls are provided, and a path for merging each powder and granule is provided. Also becomes unnecessary.

Since the outlet at the lower end of the second hopper faces the two-feeder roll via the adapter, the shape of the lower end of the second hopper does not exactly match the shape near the upper part of the feeder roll. In addition, the shape and shape of the adapter make it possible to satisfactorily supply the granular material from the outlet to the feeding roll without leakage. When the adapter is fully opened, a second powder and granular material feeding mechanism for double use is obtained, and when the adapter is half open, a second powder and granular material feeding mechanism for single use is obtained. Therefore, when the powder and granule supply device for even-numbered planting such as 6- or 8-row is used, the adapter is fully opened and used, and the powder-and-particles supply device for odd-numbered planting such as 5 is used. Sometimes it is possible to use the adapter with the adapter half open.

According to the first aspect of the present invention, the shutter for the outlet of the second granular material is provided in the second hopper so that there is no risk of forgetting or losing the shutter. However, it is possible to easily change the setting between the time when the second powder is required and the time when the second powder is unnecessary.

According to the second aspect of the present invention, the first granular material can be prevented from being deposited on the second hopper by a simple modification such that the upper surface of the second hopper is inclined. Thus, while adopting a configuration in which the second hopper is accommodated in the first hopper, a rational one in which the first granular material can be effectively fed out can be obtained.

According to the third aspect of the present invention, the closed upper surface is vibrated or the like by means of a device that is closed and locked only by operating the upper surface, which is the opening / closing lid of the second hopper, to the closed position. As a result, the first powder and the second powder can be prevented from being mixed before being fed out, and the desired feeding amounts can be maintained satisfactorily.

According to a fourth aspect of the present invention, a powder feeding device for a rice transplanter is provided, in which two types of powder can be fed by a feeding roll provided with one rotation axis, thereby providing a compact feeding mechanism. It is possible to use a single brush that can reduce cost and reduce
It was possible to provide a material capable of satisfactorily scouring the seed powder.

[0022]

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, an engine 3 and a transmission case 4 are provided at the front of a body provided with a pair of left and right front wheels 1 and a pair of left and right rear wheels 2 that can be steered. An operation part 5 is formed in the vehicle, and a seedling planting device 7 is connected to a rear part of the body via a link mechanism 6 so as to be able to move up and down freely to constitute a riding type rice transplanter. The seedling planting device 7 is configured to plant six rows, and three planting transmission cases 8
A rotating case 9 rotatably supported on both left and right sides of the planting transmission case 8, a pair of planting claws 10 provided at both ends of the rotating case 9, three ground floats 11, and a seedling mounting table 1.
2 and so on.

This rice transplanter has a fertilizer application device A and a drug application device C
The fertilizer and the chemical can be supplied to the field via the fertilizing hose 14 and the ditch device 52 provided in the seedling planting device 7. The dispensing device C is removably accommodated in the fertilizing device A, and is configured to be capable of selectively setting a fertilizing / dispensing specification with the dispensing device C mounted thereon and a fertilizing specification with the dispensing device C removed. .

Next, the fertilizer applicator A will be described. Figure 1
As shown in FIG. 6, the fertilizer applicator A includes a fertilizer hopper 13 that stores fertilizer as a granular material, and a fertilizer that flows down from the fertilizer hopper 13 and is fed to a fertilizer transfer path, which is a fertilizer transfer path. A feeding mechanism 15 for feeding a predetermined amount to the funnel 20, a fertilizer 52 for feeding the fertilizer sent by the fertilizing hose 14 to the field, and a blower for feeding the fertilizer fed to the funnel 20 to the fertilizing hose 14 by wind power. 16, a blow duct 17 for distributing and supplying the wind generated by the blower 16 to the fertilizing hoses 14 at a total of six places.

As shown in FIG. 6 and FIG.
The roll case 18 is configured such that a feeding roll R having a large number of concavities 24a for fertilizer introduction formed in the outer circumference along the circumferential direction is rotatable at a position above the funnel 20 below the fertilizer discharge port of the fertilizer hopper 13 and rotatably. It is arranged and arranged inside. A feeding roll R, a driven gear 19G integrally formed therewith,
The drive shaft 21 to which power is input is driven to rotate by being engaged with the drive gear 21G.

As shown in FIG. 8 and FIG.
A total of six partial rolls r1 to r3 having two types of widths and two types of depths are externally fitted on a hollow rotary shaft 19 having a driven gear 19G formed at one end so as to integrally rotate. It is configured. First partial rolls r1, r1 at the center in the left-right direction;
The second partial rolls r2 and r2, which are the second from the center, have the same concave portion 24a with a small width and depth, and the third partial rolls r3 and r3 at the left and right ends have large widths and depths. It is set to have a recess 24a.

Each of the partial rolls r1 to r3 has a partition wall 24b formed on only one of the left and right sides. The partition walls 24b are arranged side by side so that they are all oriented in the same direction. The partition wall 24b of the roll r1 is arranged so as to coincide with the left and right centers as a feeding mechanism. Each of the recesses 24a is axially partitioned by disposing one partition ring 23 between the one endmost third partial roll r3 and the roll case 18.
Reference numeral 22 denotes a brush that acts on each of the partial rolls r1 to r3.

As shown in FIGS. 8 to 11, a shutter mechanism S including first to third partial shutters s1 to s3 that can be pushed in and returned to the upper side of the feeding roll R is provided.
Is arranged. The shutter mechanism S enables the fertilizer application amount per unit time to be adjusted in a plurality of stages by selectively setting whether to supply fertilizer to any one or more of the first to third partial rolls r1 to r3. Things.

Each of the partial shutters s1 to s3 has the same structure. As shown in FIG. 12, if the second partial shutter s2 is used, the flow of the fertilizer from the fertilizer hopper 13 to the delivery roll R will be described. Blocking plate 26 to block
And a rod-shaped operation unit 25 that is pushed and pulled by being picked with fingers. The blocking plate 26 is made of a spring plate and is elastically deformable in the vertical direction.
Extends forward through an L-shaped insertion hole 79 formed in the roll case 18 when viewed in the front-rear direction.

If the operating section 25 is pinched (forward) and pulled out, the shut-off plate 26 is positioned on the feeding roll R to be in a closed position in which the supply of fertilizer is shut off (see the left side of FIG. 11). If it is pinched (rearward) and pushed in, the blocking plate 26 bends upward and is housed along the inner wall surface of the roll case 18, and only the thin operation unit 25 is located on the feeding roll R and the opening posture in which fertilizer is supplied. (See the right side of FIGS. 8 and 11).

For example, the first and second partial rolls r1, r
When the shutters s1 and s2 with respect to 2 are pulled out to the closed position and the third shutter s3 is pushed in to the open position, fertilization is performed in a state where fertilizer enters only the concave portion 24a of the third partial roll r3. Further, when all the partial shutters s1 to s3 are pushed in, the fertilizer enters the concave portions 24a of all the partial rolls r1 to r3, so that a large amount of fertilizer is fed out per unit time. By pushing or pulling the three partial shutters s1 to s3 alone or in combination in this manner, the amount of fertilizer fed out per unit time can be adjusted in five stages (r1 or r2, r3, r1 + r2, r1 or r2 + r).
3, r1 + r2 + r3). still,
The five-step adjustment can function in the case of the fertilization specification without the dispensing device C.

Four sets of the feeding portions k, each of which has the feeding mechanism 15 having the above-mentioned structure formed as a two-piece integrated type, are arranged side by side on the left and right. Of the four feeding portions k, two inside sets are fed. The parts k, k are used for one line. That is, in the case of the fertilization specification not equipped with a drug dispensing device, one of the two sets of shutter mechanisms S, S may be fully closed,
Although not shown, an inclined cover is attached [
0-23517, see FIG. 7 (reference numeral 21a)] and the like, so that only one set of the feeding mechanism 15 is operated, and in the case of the fertilization / medication specification, that is, in the case of this embodiment, it will be described in detail later. , Is set to one for one by replacing the attachment (see FIG. 23). in this way,
By arranging two sets of single-row feeding sections k, k between the left and right two-row feeding sections k, k, a six-row fertilizing apparatus A or a six-row fertilizing apparatus A is provided. And the medicine dispensing apparatus C.

The fertilizer application hopper 13 is made of a resin in which left and right end large capacity hopper sections 13a, 13a are integrally formed with inner single small capacity hopper sections 13b, 13b. I have. The front-rear width of the small-capacity hopper portions 13b, 13b is short at the rear of the driver's seat 27, and the front-rear width of the large-capacity hopper portions 13a is long at the left and right sides of the driver's seat 27. Is composed,
The capacity corresponding to the amount of fertilizer for each of the two-row and one-row is set. The opening / closing lid 28 of the fertilizer hopper 13 is an integral product covering four hopper portions 13a, 13b, 13b, 13a, and is swingably opened and closed at a fulcrum Z provided at a rear portion as shown in FIG. It is.

The driving structure of the feeding mechanism 15 will be described. As shown in FIGS. 7 to 9, each of the four roll cases 1
A single drive shaft 21 having a hexagonal cross section is rotatably supported over the boss portion 18b of No. 8, and the above-described drive gear 21G is fitted around the drive shaft 21 so as to be relatively rotatable.
The shift rotator 29 is fitted around the drive shaft 21 so as to rotate and slide freely, and includes a spring 30 for urging the shift rotator 29 toward the occlusal side of the drive gear 21G. Shift rotator 29 to drive gear 21
In order to disengage from G, a shift member 31 which can swing freely is provided. In other words, the shift member 31 is forcibly rocked by pulling a wire (not shown) to constitute the fertilizer application clutch 33 capable of blocking transmission of the rotational power of the drive shaft 21 to the feeding mechanism 15.

As shown in FIGS. 1 and 4, at the lower part of the vehicle body,
A traveling transmission shaft 35 for transmitting power from the transmission case 4 to a rear axle case 34 at the rear of the fuselage is arranged in front and rear, and a transmission case 36 for distributing power from the traveling transmission shaft 35 to the fertilizer applicator A is replaced with a rear axle case 34. Is provided immediately before. The transmission case 3 surrounding the traveling transmission shaft 35
6 is equipped with a bevel gear mechanism (not shown), and a drive arm 37 attached to its output shaft is equipped on one of the left and right sides.

On the other hand, as shown in FIGS. 7, 13 and 14, the drive shaft 21 is provided with a passive arm 39 via a first one-way clutch 38. And a conversion mechanism 41 that converts both the upward swing and the downward swing of the passive arm 39 into rotation of the drive shaft 21 in a fixed direction. That is, the drive shaft 21 is continuously rotated in a fixed direction while having one passive arm 39 which is reciprocally driven and oscillated by the rotating drive arm 37.

The conversion mechanism 41 swings at a fulcrum Y with a second auxiliary arm 43 fitted on the drive shaft 21 via a second one-way clutch 42 that transmits only rotational force in the same direction as the first one-way clutch 38. A free bell crank 44, a first rod 45 interlocking the first auxiliary arm 39 a, which is the front end of the passive arm 39, with the bell crank 44, and a second rod interlocking the bell crank 44 with the second auxiliary arm 43 46.

That is, when the passive arm 39 swings upward, as shown in FIG. 13A, the first one-way clutch 38 rotates integrally to rotate the drive shaft 21 in the direction shown by the arrow A. The rotation of the second auxiliary arm 43 that rotates in the second direction causes the second one-way clutch 42 to idle. Further, when the passive arm 39 swings downward, the first one-way clutch 38 that rotates in the direction of arrow B idles as shown in FIG.
The rotation of the second auxiliary arm 43, which rotates in the direction of arrow A, causes the second one-way clutch 42 to rotate integrally and rotate the drive shaft 21 in the direction of arrow A as well.

Here, the driving structure of the driving shaft 21 is summarized as follows. That is, the first auxiliary arm 39 that is interlocked with the feeding roll R via the first one-way clutch 38
a, a second auxiliary arm 43 interlocked with the feeding roll R via a second one-way clutch 42 operating in the same rotational direction as the first one-way clutch 38, and a single rotating arm 37 driven and rotated. A passive arm 39 which is interlocked and linked by a rod 40 and reciprocates; a first interlocking mechanism a1 for interlockingly rotating the passive arm 39 and the first auxiliary arm 39a in the same direction; a passive arm 39 and a second auxiliary arm And a second interlocking mechanism a2 for interlocking rotation of the passive arm 39 with the second arm 43 so that only the first one-way clutch 38 is idle-driven by the swing of the passive arm 39 to one side, and the passive arm 39
, The second one-way clutch 42 alone is driven idle.

The conversion mechanism 41 includes a first interlocking mechanism a1 and a second interlocking mechanism a1.
And a first interlocking mechanism a1.
Is constituted by a passive arm 39 integrally formed with a first auxiliary arm 39a via a boss portion. The second interlocking mechanism a2 includes first and second rods 45 and 46 and a bell crank 44.

Next, the dispensing device C will be described. The dispensing device C is configured to be dispensed using the dispensing mechanism 15 of the fertilizing device A, and has a configuration in which the dispensing hopper 91 is accommodated in the fertilizer hopper 13.
The appearance is hidden (included) by the fertilizer application device A so that it cannot be seen.

As shown in FIG. 7 and FIG.
Reference numeral 1 denotes a lidless hopper main body 91A and an opening / closing lid 91B as an upper surface thereof. The hopper main body 91A made of synthetic resin is formed in a flattened shape with a narrowed front and a short front and back in plan view, and is disposed close to a rear wall inside the fertilizer application hopper 13. Upper surface 91B made of plate material
Is a support shaft 9 having a left-right fulcrum P at the upper end of the hopper rear.
The hopper body 91A is pivotally supported by the hopper body 91A so as to be openable and closable through the opening 2.

A forked support arm 9 of the opening / closing lid 91B is attached to a projection 91a formed at the rear end of the upper end of the hopper body 91A.
The two shafts 91A and 91B are pivotally supported so as to be relatively swingable by passing the support shaft 92 in a state where 1b and 91b straddle. A plate bracket 93 having a U-shape that is open forward in plan view is hooked on the upper end of the rear wall 13r so as to be located on the inner surface of the rear wall 13r of the fertilizer hopper 13, and is provided.
The left and right arm portions 93a, 93a of the plate bracket 93 are
The support shaft 9 between the support arm portion 91b and the convex portion 91a
By holding and supporting 2, the drug application hopper 91 is suspended and supported in the fertilizer application hopper 13.

A projecting portion 94 bulging forward for lid locking is integrally formed at the left and right center of the upper end of the front surface of the hopper body 91A, and a lock piece 95 having a shape conforming to the outer surface thereof is formed on the opening / closing lid 91B. I have. That is, the opening / closing lid 9
When the lock 1B is closed, the lock piece 95 is elastically deformed and fits into the protrusion 94. The lock 94 is opened and closed by the protrusion 94 and the lock piece 95 when the opening / closing lid 91B is operated to the closed position. A self-locking mechanism E in which the lid 91B is locked and maintained at the closed position is configured. Further, the opening / closing lid 91B in the closed state is inclined so that the fertilizer placed on the lid 91B slides down due to gravity, and is set so that the fertilizer does not accumulate on the dispensing hopper 91. .

A pair of left and right holes are formed in the bottom surface of the constricted portion 96 at the lower portion of the hopper body 91A, so that the medicine outlets 90, 90 are formed.
The constricted portion 96 is disposed at a position directly above the feeding roll R via an uncovered rubber attachment 97 which covers the bottom surface of the constricted portion 96 from below. A partition wall 98 corresponding to the five partition walls 24b of the six partial rolls r1 to r3 is formed at the lower end of the roll case 18, and has a function of rectifying the fertilizer.

As shown in FIGS. 8 to 10, the left and right widths of the attachment 97 correspond to the two outermost partition walls 98 in the left and right direction of the five partition walls 98. The projections 99 that enter the insides of the outermost partition walls 98, 98 allow the attachment 97 to be placed exactly on the partition wall 98. That is, the dispensing hopper 91 is accommodated in the fertilizer hopper 13 in a state where the dispensing hopper 91 is positioned by the upper plate bracket 93 and the lower attachment 97. The outlet 9 is located on the lower surface of the attachment 97.
The medicine discharged from the first and second partial rolls r1,
A pair of left and right openings (an example of a second particulate material passage) 97a, 97a for leading to r2 are formed, and these openings 97a, 97a can be opened and closed freely.
Is provided in the dispensing hopper 91.

As shown in FIGS. 7 to 10, the dispensing shutter 100 has a main body 101 made of a spring steel plate which is easily elastically deformed.
A grip 102 formed by bending a wire such as a piano wire is attached to the lower part of the constricted portion 96 so as to slide up and down along the inner surface of a curved surface 96a extending from the front surface to the bottom surface. The curved surface 96a is slightly extended forward. A guide member 104 is provided so that the shutter 100 can slide along the outer surface of the front wall 91z of the dispensing hopper 91 above the slit 103 for taking out the shutter formed at the upper end of the curved surface 96a.

The guide member 104 made of a plate material is attached to the dispensing hopper 91 by two screws 105, 105, which are upper and lower, with the handle 102 being sandwiched between the guide member 104 and the front wall 91z. It also functions as a guide member for guiding the handle 102 in the vertical direction. The guide member 104 slides along the shape of the dispensing hopper 91 such that the dispensing shutter 100 in a curved state does not return forward and return due to elasticity.

That is, a first feeding mechanism kr1 comprising a fertilizer application hopper (an example of a first hopper) 13 for storing fertilizer (an example of a first granular material) and a third partial roll r3 for feeding the fertilizer by a predetermined amount. The fertilizer applicator A is configured to include a first dispensing section k1 for dispensing a drug (an example of a second granular material) and a drug dispensing hopper (an example of a second hopper) 91 for dispensing a predetermined amount of the drug. The medicine dispensing device C is provided with a second feeding section k2 formed by a second feeding mechanism kr2 including the first and second partial rolls r1 and r2. The first feeding mechanism kr1 and the second feeding mechanism kr2 constitute a feeding mechanism 15.

The third partial roll (an example of a first unwinding roll) r3 and the first and second partial rolls (an example of a second unwinding roll) r1 and r2 are arranged such that their rotation axes Q are aligned. , And a single brush 22 is provided for each of the two rolls R. That is, as shown in FIG. 20, the third partial roll r3
The first brush portions 22a, 22a at one of the left and right ends corresponding to the first and second partial rolls r1, r2 (an example of a first sweeping brush) 22a, 22a ) 22b are provided integrally with each other, and the density of the second brush is higher than that of the first brush portion 22a.
The brush implantation density of the brush portion 22b is set to be large.

The abrasion brush 22 is used to make the abrasion action on the feeding roll R by pressing and contacting a powder or a granular material such as a fertilizer or a chemical. The number of brush bristles per area) is set, but since the particle size of the chemical is smaller than the particle size of the fertilizer, the brush planting density as the brush 22 is determined in accordance with that.

Incidentally, the chemical hopper 91 is connected to the fertilizer hopper 1.
When attaching / detaching to / from the fertilizer 3, the handle 102 is lowered so that the fertilization shutter 100 closes the pair of outlets 90. Arm part 93 of plate bracket 93
a and 93a are formed in a hook shape, and the loading and unloading of the support shaft 92 can be freely mounted, so that the dispensing hopper 91 can be lifted obliquely upward and backward to remove it from the fertilizer hopper 13. Can be. When storing, the support shaft 92 may be placed on the plate bracket 93 so as to move diagonally downward and downward (see FIG. 10).

As shown in FIG. 4, FIG. 5, and FIG. 19, the blower duct 17 is a partial duct made of a soft material such as rubber, which is provided for each of four sets of the feeding portions k in a state of being connected to the funnel portion 20. D
1 and a connection duct D2 made of a hard material such as a PE resin or a PP resin for sequentially connecting and connecting the partial duct D1 and the blower 16 to form a single ventilation path.
The connecting duct D2 is composed of three intermediate connecting ducts 49 for connecting and connecting the adjacent partial ducts D1 to each other, and a starting end connecting duct 50 for connecting and connecting the partial duct 48 closest to the air blower and the blower 16. It is composed of four parts.

The partial duct D1 is composed of three partial ducts 48, 48 on the upper side of the blower, a partial duct 51 on the lower side of the blower integrally formed with the lid 51b, and a second partial duct 47 from the lower side of the blower. It is composed of types. Then, in order to equalize the wind force supplied to each of the funnel portions 20 in each of the feeding portions k, these partial ducts 51, 47, and 4 are used.
Protrusions 51a, 47 protruding into the air flow paths in 8, 48
a, 48a, 48a are integrally formed. Blower side 2
The two projections 51a and 47a are the same projection, but the two projections 48a on the upstream side of the blower are larger than these projections.

That is, when the area of the wind intake port in the air duct 17 is the same, the wind pressure on the leeward side tends to increase, and the wind per unit time tends to increase. It has been found that it is effective to provide a throttle inside the duct and reduce the duct cross-sectional area on the windward side as far as the intake port on the downstream side of the air blow.

Therefore, the projections formed on each of the four partial ducts D1 may be made larger in order from the windward side. However, if this is done, all the four partial ducts D1 will be different parts and the mold cost will increase. There are disadvantages such as easy part management and assembly errors. Therefore, the large projection 48
a, and two means of arranging two partial ducts 48, 47 (51) each having the small projections 47a, 51a, for equalizing the air flow to each funnel 20 and eliminating the disadvantages described above. Is planned.

In the feeding section k, the wind intake ports 14a, 14a, which are the starting ends of the fertilizing hoses 14, are arranged very close to each other, so that the wind intake port 14a on the leeward side is inserted farther into the ventilation duct 17. As described above, the positional difference is provided, so that the air volume at the adjacent air intakes 14a, 14a is also made uniform. Further, since the partial duct D1 is made of rubber, and each intake port 14a can be directly fitted and connected without a gap, the sealing material such as rubber packing, which was conventionally required, has been successfully omitted.

As shown in FIGS. 15 to 17, the blower 16 mounted on the left side of the fuselage is of a centrifugal type in which an impeller 54 rotationally driven by an electric motor 53 is housed in a casing 55 having a split structure. The casing 55
Is formed with a downwardly directed suction port 55a and a downwardly directed rightward exhaust port 55b. The exhaust port 55 b is configured to be inserted into the start end side of the start end side connection duct 50.

As shown in FIG. 5, FIG. 6, and FIG.
6 to the front side of the starting end side connection duct 50 (the electric motor 53
Side), that is, the vertical axis portion of the support pipe 57 on the side of the body frame, that is, a vertically rotatable outer fitting. As a result, the blower 16 is configured such that the exhaust port 55b is inserted into and connected to the start end side connection duct 50, and the blower 16 is rotated forward from the operation position to connect the exhaust port 55b and the start end side connection duct 50. Can be freely changed to an open and retracted posture (see the phantom line in FIG. 18) in which the connection connection portion is exposed by releasing the connection.

Next, the support frame of the fertilizer applicator A will be described. As shown in FIGS. 4 to 6, the support frame f for the fertilizer application device includes a main support frame 58 that integrally supports the four feeding portions k, and a main and sub-frames that fix the main support frame 58 to the body. It is composed of mounting frames 59 and 60 and the above-described bearing pipe 57.

The main support frame 58 is made of a channel material extending left and right with a substantially U-shaped cross section protruding rearward from the lower side, and each roll case 18 is fixed by two mounting bolts 61. . Large and small hoppers 13a,
Each of 13b is equipped with a total of four fertilizer remaining amount sensors 62 for detecting that the amount of remaining fertilizer is low, and a main support frame for guiding the left and right wire harnesses 63 and 63 to the body. It is arranged using the space inside 58 (see FIG. 8).

The main support frame 58 is composed of a main mounting frame 59 at the left and right center welded to the main supporting frame 58 and a total of two sub mounting frames 60, 60 bolted to the left and right sides thereof.
And are supported by the body frame F. The main attachment frame 59 is formed by integrating a pair of left and right stay portions 59a, 59a, and a downward U-shaped pipe portion 59b extending over the stay portions 59a, 59a, and is made of sheet metal for supporting the driver's seat 27 and the like. It is bolted to the vertical frame 64. The sub-mounting frame 60 is made of a plate material that is raised in a state of being bent backward by 90 degrees, and is bolted to a support member (for supporting the fender 65) 67 welded to the rear frame 66.

The lower end of the support pipe 57 is bolted to a bracket 66a hanging down from the rear frame 66, and the upper end of the support pipe 57 is fitted to an arm member 58a welded to the left end of the main support frame 58 so as to project forward. And pinned. Bracket 56 supporting blower 16
Is connected to the bearing pipe 5 via the upper and lower grommets 68, 68.
7 and is positioned by a washer 69 welded to the bearing pipe 57.

On the lateral sides of the seedlings planted by the planting claws 10, there are provided groove-making devices 52 for feeding the fertilizer into the rice field while forming grooves, and the six groove-making devices 52 are provided with the ground float 11. Are mounted on each of them. Left and right outside 2
In the pair of feeding sections k, k, each feeding mechanism 15 and two groove generators 52 are connected by two fertilizing hoses 14,
In the two sets of left and right inner feeding portions k, k, one feeding mechanism 15 and one groove making device 52 are connected by one fertilizing hose 14.

With the above structure, the rotating case 9 of the seedling planting device 7 is driven to rotate by the power of the PTO shaft 70, and the seedlings are alternately taken out from the seedling mounting table 12 by the pair of planting claws 10 and planted on the rice field. Seedlings are planted.
At the same time, the drive arm 37 is driven by the power of the traveling transmission shaft 35.
The reciprocating motion of the rod 40 due to the rotational motion of the
The rotation of the drive shaft 21 is converted into the rotation of the drive shaft 21 in a certain direction by 1 to drive the feeding mechanism 15.

Then, the fertilizer from the fertilizer hopper 13 enters the recess 24 a of the feeding roll R, and the fertilizer is fed to the funnel 20 by the rotation of the rotating shaft 19. The blower 16 blows the air through the funnel 17 through the blower duct 17. Supplied to the unit 20;
High pressure wind causes fertilizer to pass through fertilizer hose 14
The fertilizer is supplied quickly to the fertilizer and supplied to the ditch in the field formed by the ditch generator 18 to perform the fertilization operation.

As shown in FIG. 13, the connection position of the passive arm 39 with the rod 40 is configured to be freely changeable. By changing the connection position, the swing angle of the passive arm 39 with respect to the reciprocation of the rod 40 is changed. And the drive shaft 21
By changing the rotation speed of the feeding roll R, the amount of the fed fertilizer can be adjusted.

Each clutch (not shown) capable of transmitting and disconnecting power to and from one planting transmission case 8 (a pair of rotating cases 9), and each member for transmitting and disconnecting each transmission clutch. A clutch lever (not shown) is provided. As shown in FIG. 9, the operation arm 31 swingable around the axis of the fixed portion of the feeding portion k has its end engaged with the shift rotating body 29, and each of the clutch levers (not shown). ) And the operation arm 31 are connected by a wire (not shown).

Thus, for example, by operating the respective clutch levers of the right planting transmission case 8 to the transmission blocking side and operating the respective clutches of the right planting transmission case 8 to cut off the transmission, the right planting transmission case is transmitted. The pair of rotating cases 9 of the case 8 are stopped, and the two right plantings are not planted, and the drive shaft 1 of the fertilizer feeding portion k corresponding to the two right plantings is not planted.
5 stops and the supply of fertilizer to the two right streaks stops.

As shown in FIG. 8, a fertilizer discharge port 71 is formed immediately below the shutter mechanism S in front of the brush 22, and is provided by a switching plate 72 that can swing around the horizontal axis W. Is openable and closable. Outlet 71
Is connected to a discharge hose 74 via a merging path 73. During a normal seedling planting operation, the switching plate 72 is operated to the closed position, and all the fertilizer from the fertilizer application hopper 13 is fed out by the feeding mechanism 1.
5 is supplied. When the switching plate 72 is operated to the open position with the blower 16 and the fertilizer applicator A stopped, for example, when the seedling planting operation is completed, the fertilizer application hopper 13
The remaining fertilizer can be discharged through the discharge hose 74.

Next, the single-row feeding mechanism will be described. In the fertilizer application / medicine application specifications, the powder and grain feeding device B is configured so that the feeding function for one row can be omitted so that it can be used for an odd-numbered row planting machine such as a 5-row planting. That is, as shown in FIG. 21, a single-row attachment 106 is mounted instead of the above-described attachment 97. The one-row attachment 106 has no one of the pair of openings 97a and the third partial roll r on the side where the openings are omitted.
A cover piece 106a that covers and covers the upper part of the cover 3 is formed.

When the drug application hopper 91 is equipped with the single-row attachment 106, a set of first to third
This is a state in which only the partial rolls r1 to r3 can operate, that is, a state in which the fertilizer applicator A and the drug applicator C for one row function.

[Brief description of the drawings]

FIG. 1 is a side view of a riding rice transplanter.

FIG. 2 is a plan view of a riding rice transplanter.

FIG. 3 is a plan view of a fertilizer hopper.

FIG. 4 is a rear view of a fertilizer application unit.

FIG. 5 is a front view of a fertilizer application unit.

FIG. 6 is a left side view of the fertilizer application unit.

FIG. 7 is a side view showing the drive structure of the feeding mechanism.

FIG. 8 is a sectional side view showing the structure of a feeding mechanism portion.

FIG. 9 is a cross-sectional view showing the structure of a feeding portion.

FIG. 10 is a perspective view showing a dispensing hopper and a mounting structure thereof.

FIG. 11 is a plan view showing a shutter mechanism.

FIG. 12 is a perspective view showing the structure of a partial shutter.

FIG. 13 is a side view showing a conversion mechanism for driving the feeding mechanism.

14 is a sectional view of the conversion mechanism shown in FIG.

FIG. 15 is a sectional view of a blower.

FIG. 16 is a side view of a blower.

FIG. 17 is a rear view of the blower.

FIG. 18 is a plan view showing a blower support structure.

FIG. 19 is a cross-sectional plan view showing the structure of an air duct.

FIG. 20 is a partially cutaway front view showing the relationship between the scrub brush and the granular material.

FIG. 21 is a cross-sectional view showing the structure of a single-row feeding portion.

[Explanation of symbols]

 13 First hopper 22a First scrub brush 22b Second scrub brush 24a Recess 90 Outlet 91 Second hopper 91B Upper surface 97 Adapter 97a Second powder passage 100 Shutter kr1 First feeding mechanism kr2 Second feeding mechanism k1 First feeding Part k2 Second feeding part r3 First feeding roll r1, r2 Second feeding roll E Self-locking mechanism Q Rotation axis R Feeding roll

 ──────────────────────────────────────────────────の Continued on the front page (72) Inventor Tetsuya Matsumura 64 Ishizukitamachi, Sakai City, Osaka Prefecture Inside Kubota Sakai Plant (72) Inventor Nariyoshi 64 Ishizukitamachi, Sakai City, Osaka Prefecture Kubota Sakai Manufacturing Co., Ltd. In-house F-term (reference) 2B052 BC05 BC16 EA02 EA11 EA15 EB01 EB11 2B060 AA01 AC03 BA04 BA07 BA09 BB07 BB08 CB18 2B121 CB09 CB24 CB32 CB46 EA26 FA02 FA11

Claims (5)

[Claims] A first dispensing section comprising a first hopper for storing the first granular material, and a first dispensing mechanism for dispensing a predetermined amount of the first granular material sent from the first hopper; A second dispensing unit including a second hopper for storing the second powder and granules; and a second dispensing mechanism for dispensing the second powder and granules sent from the second hopper by a predetermined amount. (2) The second hopper having an outlet formed at a lower end portion for taking out the powder and granules to the second feeding mechanism is removably accommodated in the first hopper, and a shutter capable of opening and closing the outlet is provided. A powder and granular material supply device for a rice transplanter provided in a second hopper. 2. A first dispensing unit comprising: a first hopper for storing first particulates, and a first dispensing mechanism for dispensing a predetermined amount of the first particulates sent from the first hopper, A second dispensing unit including a second hopper for storing the second granular material, and a second dispensing mechanism for dispensing the second granular material sent from the second hopper by a predetermined amount, The second hopper is accommodated in the first hopper, and the upper surface of the second hopper is placed on the first hopper.
An apparatus for supplying a granular material of a rice transplanter that is tilted to such an extent that the granular material slides down due to gravity. A first dispensing section comprising a first hopper for storing the first granular material, and a first dispensing mechanism for dispensing a predetermined amount of the first granular material sent from the first hopper; A second dispensing unit including a second hopper for storing the second granular material, and a second dispensing mechanism for dispensing the second granular material sent from the second hopper by a predetermined amount, The second hopper is accommodated in the first hopper, and the upper surface of the second hopper is configured to function as a lid that can be opened and closed. A powder and granular material supply device for a rice transplanter provided with a self-locking mechanism that is locked and maintained at a closed position. 4. A first feeding roll which is formed on the outer periphery thereof and has a concave portion for entering powders and is rotatable and rotatable, and an outer periphery of the first feeding roll for restricting excessive entry of powders into the concave portion. A first feeding mechanism for feeding the first powder and granular material by a predetermined amount from the first brush acting on the second feeding roller, and a second feeding roll rotatably rotatable having a concave portion formed on the outer periphery for receiving the powder and granular material. And a second scouring brush acting on the outer periphery of the second pay-out roll to restrict excessive entry of the powder and granules into the recess, having a particle diameter smaller than the particle diameter of the first powder and particles. A second feeding mechanism for feeding the second powder material by a predetermined amount, wherein the first and second feeding rolls are arranged in a state where their rotation axes are aligned on a straight line, and 1st and 2nd
The cutting brush is formed integrally with the first brush.
A powder and granular material supply device for a rice transplanter, wherein the brush installation density of the second brush is set higher than the brush installation density of the brush. 5. A double-integrated first feed roll, which is rotatable and has a concave portion for entering the first powder and granules formed on the outer periphery, and a concave portion for entering the second powder and granules is formed on the outer periphery. The drive-rotatable two-row integrated second feed roll is arranged side by side in such a state that their rotation axes are aligned on a straight line to form a feed roll, and the outlet for the second powder is formed. The second hopper is placed in a state where the lower end of the second hopper is located immediately above the pay-out roll via an adapter having a passage for the second powder and granules corresponding to the second pay-out roll. And the adapter is provided in a fully opened state in which the second passage for the second granular material is opened, and one of the passages for the second granular material.
An apparatus for supplying powder and granules of a rice transplanter, which is configured to be freely switchable between a half-open state where a row is closed.