JPH08256660A - Agrochemical application scheme for rice transplanter - Google Patents

Abstract

PURPOSE: To provide a scheme designed to prevent the agrochemical application device from breakage by supporting the application device on the rear side of a seedling planting device mounted in the rear using a supporting member placed on the lower side of the agrochemical guide member of the application device. CONSTITUTION: A supporting member 16 is disposed on the lower side of an agrochemical guide member 15 under the delivery mechanism 14 and a rotator 33 of the agrochemical application device 5, which is supported on the rear side of a seedling planting device 3. Thus, the applicator device can be protected by the supporting member 16 from being broken due to levee or ground projections during seedling planting operations.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rotary disk type feeding member having a large number of through-holes for passing granular material at a predetermined pitch along the circumferential direction. The present invention relates to a powdery or granular material feeding device which is arranged so as to face the lower end outlet and is configured to feed a predetermined amount of powdery or granular material by intermittently rotating the feeding member at each pitch by a drive mechanism.

[0002]

2. Description of the Related Art As a conventional feeding device,
There is a structure which the applicant of the present invention filed previously (Japanese Patent Application No. 63-179358). That is, the feeding member is fitted and mounted from above the vertically oriented drive shaft, and is fixed by tightening with a nut from above.

[0003]

The above-mentioned conventional structure is designed to allow the feeding member to be rotationally driven with high precision and to prevent the upward movement of the feeding member so as to exert a reliable feeding function. However, in this type of feeding device, fine particles of powder and granular material may adhere to the feeding member and accumulate on the feeding member due to long-term use, and maintenance work such as cleaning or replacement is performed every predetermined period of use. It costs. However, in the above conventional structure, during the maintenance work as described above, the hopper must first be removed, then the nut must be loosened and removed, or the nut must be tightened and fixed when re-installed, which is troublesome. Was becoming. The present invention aims to solve the above-mentioned inconveniences through a rational improvement.

[0004]

That is, when the feeding member is removed for maintenance work, by removing the hopper, the contact regulation by the pressing portion is released, and the feeding member can be freely removed from the drive shaft. It can be removed without any special release work. Then, at the time of remounting, it is only necessary to insert the feeding member into the drive shaft and mount the hopper. At this time,
Since the contact is restricted by the pressing portion of the hopper, the feeding member can reliably feed the powder or granular material.

[0005]

FIG. 9 shows a riding type rice transplanter according to the present invention. In this rice transplanter, a seedling planting device 3 is connected to a rear portion of a riding type traveling body 1 via a link mechanism 2 which is driven to move up and down, a fertilizer application device 4 is attached to a rear portion of the seedling planting device 3, and further rearward thereof. The chemical spraying device 5 is arranged in the above.

As shown in FIG. 6 and FIG. 7, the seedling planting device 3 includes a seedling mounting table 6 in a downward descending inclined position for placing planted seedlings on a planting transmission case 7 which also serves as a frame at a constant stroke. It is mounted so that it can be reciprocally moved laterally, and three chain cases 8 integrally extended rearward from the planted transmission case 7 are provided with a planting mechanism 9 on each of the rear sides of the chain case 8 to form a six-row planting type. . In the rear part of the chain case 8, the planting mechanism 9 has planting claws 11 attached to both ends of a rotary case 10 which is rotationally driven around a central horizontal axis X1, so that the rotary case 10 rotates. The planting claw 11 is configured to cut out a seedling and plant it in a field while drawing an elliptical locus.
A clutch mechanism C for individually connecting and disconnecting the power to the planting mechanism 9 is internally provided in each of the planting transmission case 7 and each chain case 8, and each clutch mechanism C is provided.
The on / off operation is performed by manually operating each row clutch lever 12 arranged on the front side of the seedling placing table 6, and a partial row planting state in which only part of the planting mechanism 9 is driven and the whole planting mechanism 9 It is provided so that it can be switched to the all-row planted state that drives the.

[0007] The medicine spraying device 5 is provided with a hopper 13 for storing the medicines in the form of powder or granules in the upper center part thereof, and below the hopper 13, a feeding mechanism 14 for feeding a predetermined amount of the medicine is provided, and the fed medicine is Is provided with a substantially box-shaped guide member 15 which extends in the lateral direction in order to spread it over substantially the entire planting width and which is open downward, and which is fixedly extended from the rear portion of the chain case 8. It is supported and fixed via the frame 16.

More specifically, as shown in FIGS. 1 and 2,
Below the hopper 13, there is provided a rotary disk type feeding member 18 in which a large number of drug passage through holes 17 are formed along the circumferential direction, and at the lower end outlet at an upper position corresponding to the through hole rotation locus in the hopper 13. A certain drug supply port 19 is formed, and a drop hole 21 is formed in a portion of the bottom plate 20 that is displaced in the rotational direction with respect to this drug supply port 19. Then, the vertical drive shaft 23 of the feeding member 18 and the planting mechanism 9 are interlockingly connected via the drive mechanism A.

More specifically, as shown in FIGS. 6 and 7,
Planting mechanism 9 driven by the chain cases 8 at the left and right ends
Is pivotally supported on a side portion of the rotating case 10 which is an intermediate portion of a bracket 24 which is erected and fixed over both ends, and which is eccentric from the center of rotation and a bracket 25 extending from the lower front portion of the guide member 15. One end of the balance arm 26 is pivotally connected via a push / pull rod 27, and one end of the balance arm 26 and an intermediate portion of a swing arm 28 pivotally supported on the bracket 25 are pivotally supported via a link 29. It is connected. Then, the swing end of the swing arm 28 and the one-way clutch 30 attached to the drive shaft 23 are interlocked and coupled by a wire 31, and the feeding member 18 is connected to the through hole 17 as the rotating case 10 rotates. The drive mechanism A is configured so as to feed the medicine by intermittently rotating for a period corresponding to the pitch. By providing two interlocking systems in this way, it is considered that the feeding function can be maintained even if partial row planting is performed by operating each row clutch lever 12.

The medicine dropped through the drop port 21 is
The electric motor 32 is driven to rotate about the vertical axis at a high speed, and is sprung by a rotary vane 34 standing on the upper surface of a rotary disc 33 and guided along the inner wall of the guide member 15, and diffused and released over substantially the entire planting width. It is configured to let.

The hopper 13 is detachably mounted on the upper portion of the feeding mechanism 14, and the feeding member 18 can be easily removed. More specifically, the case portion 36 surrounding the feeding mechanism 14 is provided on both sides of the outer case portion 35 formed in the lower portion of the hopper 13.
It is configured such that it can be detachably attached and fixed by a buckle mechanism 37 between the and.

On the other hand, the feeding member 18 has a drive shaft 23.
It is fitted and attached so that it can be freely inserted and removed and is integrally rotatable. That is, as shown in FIG. 5, a fitting concave portion 38 for fitting the drive shaft 23 into the central portion of the feeding member 18 is formed in the protruding shaft portion 39 protruding upward, and the protruding shaft portion 39 is formed. An engaging recessed groove 41 is formed on the lower surface side of the drive shaft 23 so as to engage with the engaging protrusion 40 formed outward in the radial direction in the vertical direction. As described above, the feeding member 18 is moved by the engagement between the engaging projection 40 and the engaging groove 41.
It is provided so as to be able to rotate integrally with 3.

At the lower part of the hopper 13, there is provided a pressing portion which comes into contact with the upper end of the protruding shaft portion 39 and prevents the floating. More specifically, as shown in FIG. 4, the hopper 1
A bracket 42 fixed to the lower part of 3 is attached with a contact plate 43 as a holding part which is swingable around the horizontal axis X2, and the contact plate 43 is biased downward by a spiral spring 44. . A swing arm 45 that swings integrally is connected to the contact plate 43, and the supply port 19 is connected to the swing end of the swing arm 45 in association with the swing of the contact plate 43. A shutter member 46 that opens and closes is pivotally connected. With this configuration, when the hopper 13 is mounted, the projecting shaft portion 39 of the feeding member 18 is pressed by the contact plate 43 that is urged downward, and lifting can be prevented so that a reliable feeding operation can be maintained. At the same time, the shutter member 46
Is set to the open state. Further, when the hopper 13 is removed, the contact plate 43 swings downward by the urging force of the spiral spring 44, and the shutter member 46 is automatically set to the closed state in conjunction therewith, so that the residual chemicals inside the hopper 13 are removed. Can be prevented from leaking from the supply port 19. The upper end of the protruding shaft portion 39 is sharply formed so that the pressing frictional force of the contact plate 43 is reduced so as not to hinder the rotational drive. With the above-mentioned structure, when the hopper 13 is removed, the feeding member 18 can be inserted and removed as it is, and maintenance work such as cleaning can be easily performed.

[Another Embodiment of the Invention] The contact plate 43
In place of the above-mentioned shutter member 46 that is interlocked with, the above-mentioned shutter member 46 may be separately provided in another portion.
Further, the present invention can be applied not only to the medicine but also to the feeding structure of fertilizer and other various powders. The drive mechanism A may use various drive means such as intermittent rotation by an electric motor, instead of the interlocking structure described above.

[0015]

According to the features of claim 1, the rational structural improvement makes it possible to easily perform the work of removing the powdery or granular material feeding member which requires the maintenance work without any trouble.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a main part.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III of FIG.

FIG. 4 is a vertical side view of the lower part of the hopper.

FIG. 5 is an exploded perspective view of a main part.

[Figure 6] Side view of the rear part of the rice transplanter

[Figure 7] Rear view of rice transplanter

[Figure 8] Plan view of the rear of rice transplanter

[Figure 9] Overall side view of rice transplanter

[Explanation of symbols]

 13 Hopper 17 Through Hole 18 Feeding Member 19 Outlet 23 Drive Shaft 43 Holding Section A Drive Mechanism

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[Procedure amendment]

[Submission date] February 20, 1996

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction content]

[Document name] Statement

[Title of Invention] Chemical spraying structure of rice transplanter

[Claims]

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a chemical spraying structure for a rice transplanter, and more particularly to a technique for protecting a chemical spraying device supported on the rear side of a seedling planting device provided at the rear part of a machine body.

[0002]

2. Description of the Related Art Conventionally, there has been no protector for protecting a chemical spraying device provided in a rice transplanter, which has a dedicated member.

[0003]

As described above, in the case where the drug spraying device is supported on the rear side of the seedling planting device, the seedling planting device such as the float of the seedling planting device when spraying the drug downward is used. For the purpose of suppressing the phenomenon in which the spraying of the chemicals is hindered by the members that make up the seedling planting device, the chemical spraying device is arranged at a position projecting further rearward from the rear end of the seedling planting device. In the form of projecting rearward from the rear end of the device, at the time of work, for example, when descending the seedling planting device after raising the seedling planting device at the ridge and turning the machine, It is also conceivable to damage the rear end by contacting the ridge. As described above, when the seedling planting device descends, the total weight of the seedling planting device and the chemical spraying device acts on the chemical spraying device through the ridges, and the degree of damage tends to increase, and there is room for improvement. Further, it may be possible to provide a dedicated protector for the purpose of eliminating this inconvenience, but this leads to an increase in the size of the device and an increase in the number of parts, which makes it difficult to commercialize.

An object of the present invention is to provide a structure that protects a chemical spraying device and avoids damage even when the chemical spraying device is in a position where it comes into contact with a ridge or a ground protrusion when the seedling planting device is lowered. There is a point to get it.

[0005]

The features of the present invention include: a hopper for storing a medicine, a feeding mechanism for feeding the medicine from the hopper, a rotating body for scattering the fed medicine by rotation, and the rotating body. A rear side of the seedling planting device at the rear of the machine body, which comprises a drug spraying device including a guide member for diffusing the scattered drug and guiding the drug to fall in a field scene, through the supporting member. Support, and
The support member is located below the guide member, and its action and effect are as follows.

[0006]

According to the above feature, since the chemical spraying device is supported by the seedling planting device through the support member arranged on the lower side,
When the seedling planting device descends, even if the chemical spraying device is in a position to contact the ridges or the above-ground protrusions, the support member makes contact with the ridges or above-ground protrusions so that the ridges or above-ground protrusions come into contact with the chemical spraying device. This can be avoided and, moreover, since this support member is formed of a high-strength member capable of supporting the drug spraying device, reliable protection can be achieved without forming a protector or the like.

[0007]

[Effects of the Invention] Therefore, even if the chemical spraying device is located at a position where it comes into contact with the ridges or the above-ground protrusions when the seedling planting device is lowered, the chemical spraying device can be protected so as to avoid damage. It was done.

[0008]

EXAMPLE FIG. 9 shows a riding type rice transplanter according to the present invention. In this rice transplanter, a seedling planting device 3 is connected to a rear portion of a riding type traveling body 1 via a link mechanism 2 which is driven to move up and down, a fertilizer application device 4 is attached to a rear portion of the seedling planting device 3, and further rearward thereof. The chemical spraying device 5 is arranged in the above.

As shown in FIG. 6 and FIG. 7, the seedling planting device 3 includes a seedling placing table 6 in a downward descending tilted posture for placing planted seedlings on a planting transmission case 7 which also serves as a frame at a constant stroke. It is mounted so that it can be reciprocally moved laterally, and three chain cases 8 integrally extended rearward from the planted transmission case 7 are provided with a planting mechanism 9 on each of the rear sides of the chain case 8 to form a six-row planting type. . In the rear part of the chain case 8, the planting mechanism 9 has planting claws 11 attached to both ends of a rotary case 10 which is rotationally driven around a central horizontal axis X1, so that the rotary case 10 rotates. The planting claw 11 is configured to cut out a seedling and plant it in a field while drawing an elliptical locus.
A clutch mechanism C for individually connecting and disconnecting the power to the planting mechanism 9 is internally provided in each of the planting transmission case 7 and each chain case 8, and each clutch mechanism C is provided.
The on / off operation is performed by manually operating each row clutch lever 12 arranged on the front side of the seedling placing table 6, and a partial row planting state in which only part of the planting mechanism 9 is driven and the whole planting mechanism 9 It is provided so that it can be switched to the all-row planted state that drives the.

The chemical spraying device 5 is provided with a hopper 13 for storing a powdery drug in the upper center part thereof, a feeding mechanism 14 for feeding a predetermined amount of the drug below the hopper 13, and a dispensed drug. Is provided with a substantially box-shaped guide member 15 which extends in the lateral direction in order to spread it over substantially the entire planting width and which is open downward, and which is fixedly extended from the rear portion of the chain case 8. It is supported and fixed via a support frame 16 as a member. Further, since the support frame 16 is formed in a posture that it is directed rearward and upward from the chain case 8, the support frame 16 is disposed below the chemical spraying device 5 arranged so as to project rearward from the seedling planting device 3. When the seedling planting device 3 is lowered, the support frame 16 comes into contact with the ridges even when the drug spraying device 5 is in contact with the ridges in a plan view when the seedling planting device 3 is lowered. It is possible to avoid the direct contact of.

More specifically, as shown in FIGS. 1, 2 and 5, the medicine passage through hole 1 is provided below the hopper 13.
A rotary disk type feeding member 18 in which a large number of 7 are formed along the circumferential direction is provided, and a medicine supply port 19 as a lower end outlet is formed at an upper position corresponding to this through hole rotation locus in the hopper 13, and a bottom plate 20 is provided. A drop hole 21 is formed at a portion displaced in the rotational direction with respect to the medicine supply port 19. Then, the vertical drive shaft 23 of the feeding member 18
And the planting mechanism 9 are interlockingly connected via a drive mechanism A.

More specifically, as shown in FIGS. 6 and 7,
Planting mechanism 9 driven by the chain cases 8 at the left and right ends
Is pivotally supported on a side portion of the rotating case 10 which is an intermediate portion of a bracket 24 which is erected and fixed over both ends, and which is eccentric from the center of rotation and a bracket 25 extending from the lower front portion of the guide member 15. One end of the balance arm 26 is pivotally connected via a push / pull rod 27, and one end of the balance arm 26 and an intermediate portion of a swing arm 28 pivotally supported on the bracket 25 are pivotally supported via a link 29. It is connected. Then, the swing end of the swing arm 28 and the one-way clutch 30 attached to the drive shaft 23 are interlocked and coupled by a wire 31, and the feeding member 18 is connected to the through hole 17 as the rotating case 10 rotates. The drive mechanism A is configured so as to feed the medicine by intermittently rotating for a period corresponding to the pitch. By providing two interlocking systems in this way, it is considered that the feeding function can be maintained even if partial row planting is performed by operating each row clutch lever 12.

The medicine dropped through the drop port 21 is
An electric motor 32 is driven to rotate at a high speed around a vertical axis, and is rotated by a rotary vane 34 standing on the upper surface of a rotary disk 33 as a rotating body to be bounced off and guided along the inner wall of the guide member 15 to substantially the entire planting width. It is configured to be diffused and released over the entire length.

The hopper 13 is detachably mounted on the upper portion of the feeding mechanism 14, and the feeding member 18 can be easily removed. More specifically, the case portion 36 surrounding the feeding mechanism 14 is provided on both sides of the outer case portion 35 formed in the lower portion of the hopper 13.
It is configured such that it can be detachably attached and fixed by a buckle mechanism 37 between the and.

On the other hand, the feeding member 18 has a drive shaft 23.
It is fitted and attached so that it can be freely inserted and removed and is integrally rotatable. That is, as shown in FIG. 5, a fitting concave portion 38 for fitting the drive shaft 23 into the central portion of the feeding member 18 is formed in the protruding shaft portion 39 protruding upward, and the protruding shaft portion 39 is formed. An engaging recessed groove 41 is formed on the lower surface side of the drive shaft 23 so as to engage with the engaging protrusion 40 formed outward in the radial direction in the vertical direction. As described above, the feeding member 18 is moved by the engagement between the engaging projection 40 and the engaging groove 41.
It is provided so as to be able to rotate integrally with 3.

At the lower part of the hopper 13, there is provided a pressing portion which comes into contact with the upper end of the protruding shaft portion 39 and prevents the floating. More specifically, as shown in FIG. 4, the hopper 1
A bracket 42 fixed to the lower part of 3 is attached with a contact plate 43 as a holding part which is swingable around the horizontal axis X2, and the contact plate 43 is biased downward by a spiral spring 44. . A swing arm 45 that swings integrally is connected to the contact plate 43, and the supply port 19 is connected to the swing end of the swing arm 45 in association with the swing of the contact plate 43. A shutter member 46 that opens and closes is pivotally connected. With this configuration, when the hopper 13 is mounted, the projecting shaft portion 39 of the feeding member 18 is pressed by the contact plate 43 that is urged downward, and lifting can be prevented so that a reliable feeding operation can be maintained. At the same time, the shutter member 46
Is set to the open state. Further, when the hopper 13 is removed, the contact plate 43 swings downward by the urging force of the spiral spring 44, and the shutter member 46 is automatically set to the closed state in conjunction therewith, so that the residual chemicals inside the hopper 13 are removed. Can be prevented from leaking from the supply port 19.

The upper end of the protruding shaft portion 39 is sharply shaped so that the pressing frictional force by the contact plate 43 is reduced so as not to hinder the rotational drive. With the above-mentioned structure, when the hopper 13 is removed, the feeding member 18 can be inserted and removed as it is, and maintenance work such as cleaning can be easily performed.

[Other Embodiments] The contact plate 43 may be provided independently at a different part, instead of being linked to the shutter member 46 as described above. In the present invention, the drive mechanism A is replaced with the one having the interlocking structure described above,
Various driving means such as intermittent rotation by an electric motor may be used.

It should be noted that reference numerals are given in the claims for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a main part.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along line III-III of FIG.

FIG. 4 is a vertical side view of the lower part of the hopper.

FIG. 5 is an exploded perspective view of a main part.

[Figure 6] Side view of the rear part of the rice transplanter

[Figure 7] Rear view of rice transplanter

[Figure 8] Plan view of the rear of rice transplanter

[Figure 9] Overall side view of rice transplanter

[Explanation of reference numerals] 3 seedling planting device 5 chemical spraying device 13 hopper 14 feeding mechanism 15 guide member 16 support member 33 rotating body

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kozo Tomita, 6 739 Yamate, Yoshida-cho, Takada-gun, Hiroshima Prefecture, Keiosha Co., Ltd. (72) Inventor Kazuyuki Hayase, 739, Yamate, Yoshida-cho, Takada-gun, Hiroshima Prefecture 6 Inside Keibunsha Manufacturing Co., Ltd. (72) Inventor Go Kadoke 6 Inside Keibunsha Manufacturing Co., Ltd. 739 Yamate, Yoshida Town, Takada District, Hiroshima Prefecture

Claims (1)

[Claims] 1. A hopper (13) for storing a medicine, and a feeding mechanism (14) for feeding the medicine from the hopper (13).
And a rotating body (33) that scatters the dispensed medicine by rotation, and a guide member (1 that diffuses the medicine scattered by the rotating body (33) and guides it to fall into a field scene.
5) and a drug spraying device (5) is configured, and the drug spraying device (5) is supported on the rear side of the device by the support member (16) on the rear side of the seedling planting device (3). In addition, the chemical spraying structure of the rice transplanter in which the support member (16) is located below the guide member (15).