TWI516199B - The spreader of the transplanter - Google Patents

Description

Dispensing device

The present invention relates to a spreading device for a rice transplanter which spreads a medicament of a spread funnel through a nozzle on a bed of a seedling mat on a seedling table. More specifically, it relates to a funnel with a plurality of spreads. It is possible to apply a spreader of two rows of rice transplanters to the seedling mat of the seedling table with one spreader funnel.

A conventional rice transplanter is provided with a tank application agent dispersing device after being detachably mounted on a rear loading stage, and the apparatus is applied to a seedling frame, and the insect repellent is applied to the seedling On the bed of the seedling pad on the table, it is suppressed that pests, rice fever, sheath blight, etc. occur on the seedlings after the transplantation (Patent Document 1 and Patent Document 2).

(Patent Document 1) Japanese Patent Laid-Open Publication No. 2002-253009

(Patent Document 2) Japanese Patent Laid-Open Publication No. 2006-158380

(Patent Document 3) Japanese Patent Laid-Open Publication No. 2004-105107

However, in the tank application agent dispersing device of the rice transplanter as described above, since all the rows of the seedling mats on the seedling table are applied by one or two boxes of the distribution funnel provided in the frame, The divergent structure of the drug delivery portion from the diffuser funnel to the branch hoses is complicated, and In addition to the clogging of the drug in the lead-out portion, the capacity of the spreader funnel is also increased, and there is an uncomfortable feeling when placed behind the seedling table or the visibility of the seedling pad located on the back of the diffuser funnel. Poor workability.

Further, for example, in Patent Document 3, since all of the lead-out portions are driven by one lead-out shaft, it is necessary to provide a clutch between each lead-out portion and the lead-out shaft in order to realize a configuration in which only a part of the lead-out portion stops driving. . Therefore, in the configuration of Patent Document 3, there is a problem in that the number of clutches is increased, and the number of parts is increased to increase the cost. On the other hand, Patent Document 1 has a configuration in which a plurality of lead-out drive shafts are provided, and each of the lead-out drive shafts is individually driven by a link mechanism. In the case of this configuration, by individually stopping the driving of the link mechanism, since the drive of the corresponding lead-out drive shaft can be stopped, it is not necessary to provide a clutch for stopping only a part of the lead-out portion. However, since a plurality of link mechanisms for extracting a plurality of drive shafts are required, the number of parts is increased and the cost is increased. In this way, it is necessary to configure the driving force for the portion of the lead-out portion while transmitting the driving force to the plurality of lead-out portions. Therefore, in the conventional solid body spreader, there is a problem that the configuration of the drive transmission mechanism is easily complicated.

Accordingly, it is an object of the present invention to provide a mechanism for preventing a difference between a volume reduction and a lead-out portion due to the number of disposed funnel hoppers, and a mechanism for transmitting a driving force to a plurality of lead-out portions with a simple configuration, and A spreading device for the rice transplanter that improves workability, safety and productivity.

Therefore, the invention described in claim 1 provides a spreading device for a rice transplanter, which is a spreading unit composed of the following members: a frame which is located behind the seedling table and is placed at the planting portion; a spreader funnel fixed to the frame; and a hose disposed in each of the rows of the lower portion of the load-bearing table in the diffuser funnel clip-out portion; and a nozzle attached to the front end of the hose And dispersing the agent of the scattering funnel on the bed of the seedling mat on the seedling table through the nozzle, wherein the scattering funnel is capable of two rows of the seedling mat of the seedling table. A plurality of the above-described diffuser funnels are disposed in a plurality of manners, and the upper end of the diffuser funnel is disposed at a position lower than a half of the height of the seedling table.

The invention according to claim 2, wherein the scattering funnel has two of the aforementioned two rows corresponding to the seedling mat. The hose or one of the aforementioned hoses corresponding to one line of the aforementioned seedling mat.

The invention according to claim 3 is the dispersing device of the rice transplanter according to the first aspect of the invention, wherein the shape of the diffuser funnel is at the bottom of the diffuser funnel, and the left and right ends are The portion is inclined from the central portion toward the lower side at an angle equal to or higher than the angle of repose.

The invention according to claim 4, wherein the nozzle is disposed in the vicinity of each of the left and right end portions of the diffuser funnel, and A gap capable of taking out the seedlings of the seedling mat is provided between the diffuser funnels, and the lead-out portion is provided at the bottoms of the left and right ends of the diffuser funnel.

The invention according to claim 5, wherein the nozzle has a position changing means corresponding to a width between the rows of the seedling mats, and the spraying device according to the first aspect of the invention. The position provided in the left-right direction of the seedling table can be changed freely.

The invention according to claim 2, wherein the spreading device is disposed above the planting portion of the rice transplanter, and includes: The driving force from the planting portion is transmitted to a drive transmission mechanism of the drive shaft of the lead-out portion, and the drive transmission mechanism is constituted by a link portion, a one-way clutch mechanism, and a drive force distribution mechanism.

The invention according to claim 7 is the dispersing device of the rice transplanter according to the first or sixth aspect of the invention, wherein the unit of the spreading unit is provided with a unit clutch and the link unit. The driving force from the rice transplanter is transmitted to the driving force distribution mechanism, and the driving force distribution mechanism distributes the driving force input from the link portion to each of the unit clutches, and each of the unit clutches is capable of The connection and the disconnection between the drive shaft and the driving force distribution mechanism provided in the corresponding scattering unit are switched.

The invention according to claim 8, wherein the unit clutch is provided in each of a plurality of planting boxes of the rice transplanter. Further, the dispersing device of the rice transplanter includes a clutch interlocking mechanism that can interlock the row planting stop clutch provided in each of the planting boxes and the unit clutch corresponding to the position of the planting box.

The invention according to claim 9 is the dispersing device of the rice transplanter according to the first aspect of the invention, wherein the scattering unit retains the scattering funnel, the lead-out portion, and the drive shaft The integrated state is integrated and can be removed from the aforementioned frame.

The invention described in claim 10 is the apparatus for spreading a rice transplanter according to the first or sixth aspect of the invention, wherein the drive transmission mechanism is disposed in the frame, and the dispersion is distributed by the The unit is mounted to the frame and is connectable to the drive shaft and the aforementioned drive transmission mechanism.

According to the invention described in claim 1, the dispersing device of the rice transplanter is provided by a spreading unit comprising: a frame which is located behind the seedling table and which is mounted on the planting portion; a spreading funnel fixed to the frame; and a hose disposed at each of the rows of the lower portion of the loading platform at the diffuser funnel clip-out portion; and a nozzle mounted to the front end of the hose and passing through the nozzle The agent of the distribution funnel is dispersed on the bed soil of the seedling mat on the seedling stage, wherein the scattering funnel is a method for applying the two rows of the seedling mat of the seedling table in a manner that can be applied by a diffuser funnel. A plurality of upper ends are disposed, and the upper end of the diffuser funnel is disposed at a position lower than a half of the height of the load-bearing table. Therefore, the lead-out portion can be formed by eliminating the divergence of the lead-out portions in the respective funnel funnels. It is simple in construction and prevents clogging of the medicament, and the medicament can be reliably applied to each row. Further, by reducing the volume of one of the diffuser funnels, the spread funnel can be stably placed on the frame, and the visibility of the seedling mat on the seedling table can be improved. Further, since the installation position of the spreader funnel is low, the operator can easily perform an operation such as replenishment of the medicine. Therefore, it is possible to provide a spreading device for a rice transplanter which improves workability and safety.

According to the invention described in claim 2, since the spreader funnel has two hoses corresponding to two rows of the seedling mat or one hose corresponding to one row of the seedling mat, there is no It is necessary to connect a plurality of hoses to one of the diffuser funnels, thereby suppressing the frequency of supplying the medicine to the diffuser funnel, and reducing the volume of the spread funnel, and stably disposing the spread funnel on the frame. Therefore, it is possible to provide a spreading device for the rice transplanter which improves workability.

According to the invention of the third aspect of the patent application, the shape of the funnel funnel is placed at the bottom of the diffuser funnel, and the left and right end portions are inclined from the central portion toward the lower side at an angle equal to or higher than the angle of repose, so that the scattering is performed. The agent in the funnel easily protrudes from the vicinity of the center of the diffuser funnel toward the left and right end portions, and is collapsed by the inclined surface of the rest angle or more by the vibration of the body, and the agent can be surely induced to be placed in the object. The lead-out part at both ends. Therefore, it is possible to provide a spreading device for the rice transplanter which improves workability.

According to the invention of the fourth aspect of the invention, the nozzle is provided in the vicinity of the left and right end portions of the diffuser funnel, and a gap capable of taking out the seedling of the seedling mat is provided between the diffuser funnels, and the spread is Since the outlet portion is provided at the bottom of the left and right ends of the funnel, the space can be secured between the diffuser funnels, and the seedlings can be easily taken out from between the diffuser funnels, and the medicines can be blocked from the respective lead-out portions, and can be surely Smoothly spreads the medicament in two directions in the diffuser funnel. Therefore, it is possible to provide a spreading device for the rice transplanter which improves workability.

According to the invention of the fifth aspect of the invention, the nozzle includes a position changing means for changing the width between the rows of the seedling mats, and changing the position in the left-right direction of the seedling table, so that even in the seedling mat The distance between the rows may vary depending on the difference between the manufacturers of the seedlings, or the change in the distance between the rows, and the position of the front end of the nozzle may be easily changed, and the medicine may be reliably scattered from the nozzle on the bed soil of the seedling mat. Therefore, it is possible to provide a spreading device for the rice transplanter which improves workability.

According to the invention of the sixth aspect of the invention, the dispersing device is disposed above the planting portion of the rice transplanter, and includes a drive transmission mechanism that transmits the driving force from the planting portion to the drive shaft of the lead-out portion The drive transmission mechanism is constituted by the link portion, the one-way clutch mechanism, and the drive force distribution mechanism, so that the unit constituting each of the scattering devices can be placed at a lower position (close to the position of the transplanting portion of the rice transplanter) ), but can constitute a short and simple drive transmission mechanism.

According to the invention of the seventh aspect of the invention, the unit clutch and the link portion are provided in each of the scattering units, and the driving force from the rice transplanter is transmitted to the driving force distribution mechanism, and the driving force distribution mechanism The driving force input from the link portion is distributed to each unit clutch, and each unit clutch is capable of switching between the drive shaft and the driving force distribution mechanism provided in the corresponding distribution unit. Therefore, by providing the unit clutch for each of the spreading units, it is possible to switch the driving of the lead-out unit for each of the distributing units as needed. In other words, it is possible to prevent the solid body from being scattered. Further, even when the scatter unit includes two lead-out units, since the two lead-out units are driven by one drive shaft, only one unit clutch for driving the drive of the two lead-out units is required. can. Thus, the spreading unit can be constructed inexpensively, and the configuration for operating the clutch can be simplified.

According to the invention of the eighth aspect of the invention, the unit clutch is provided corresponding to each of the plurality of planting boxes that are placed in the rice transplanter, and the spreading device of the rice transplanter includes a clutch interlocking mechanism capable of The row-planting stop clutch provided in each of the planting boxes is interlocked with the unit clutch at the position corresponding to the planting box, so that the driving of the derivation unit of the spreading unit can be switched according to the operation of the transplanting stop of the rice transplanter. Whether there is. Then, since the corresponding planting box is provided with the unit clutch, when the transplanting machine stops the planting, it will interlock with this, and corresponding to the row after the rowing is stopped (the row which has not been implanted) The derivation portion of the spreading unit is not driven. Thereby, waste of consumption of the solid body can be prevented.

According to the invention of the ninth aspect of the invention, the scatter unit retains the concentrating funnel, the lead-out portion, and the drive shaft in an integrated state, and can be detached from the frame, so that the detached scatter can be removed. The unit is turned over to easily discharge the solid body remaining inside the funnel. Then, since the funnel and the lead-out portion can be collectively processed, it is not necessary to disassemble the funnel from the lead-out portion as in the conventional drug dispersing device, and the seal between the funnel and the lead-out portion can be improved. Sex. Furthermore, it is also possible to store in advance in each unit in a state where the scattering unit is removed.

According to the invention of claim 10, since the drive transmission mechanism is disposed in the frame and the drive unit and the drive transmission mechanism are connected by attaching the dispersion unit to the frame, the operation can be easily performed. The operation of the spreading unit mounted on the support frame.

Hereinafter, the best mode for carrying out the invention will be described in detail with reference to the drawings. Fig. 1 is an overall side view of a rice transplanter as an example of the present invention; and Fig. 2 is a plan view of a rice transplanter.

As shown in Figs. 1 to 2, the rice transplanter 1 of this example is a vehicle body frame 11 of the traveling vehicle body 10 on which an operator rides, an engine 12 is provided at the front portion, and a transmission case 13 is provided at the rear portion. And the front axle case 14 is supported on the front side of the transmission case 13 to support the front row 15 for paddy field travel, and the rear axle case 16 is supported on both sides of the rear portion of the transmission case 13. There is a rear wheel 17 for paddy field walking.

Further, the engine 12 and members in the vicinity thereof are covered by a bonnet 18; the transmission case 13 and members in the vicinity thereof are covered by a body cover 20 having a step 19. Then, the driver's seat 21 is attached to the upper portion of the body cover 20, and a steering handle 22 is provided in front of the driver's seat 21.

In the rear portion of the traveling body 10, a planting portion 31 having a plurality of rows of implants (eight rows in the drawings, but not limited thereto) or a plurality of planting claws 32 are attached. The planting unit 30 is coupled to the traveling vehicle body 10 by using a three-point lifting link mechanism including a top ring 33 and a lower ring 34. Then, the expansion and contraction operation of the hydraulic cylinder (not shown) provided between the rear portion of the traveling vehicle body 10 and the bottom ring 34 is configured to be movable up and down.

Moreover, the seedling loading table 31 provided in the manner of the front height and the low side is a plate-shaped forward tilt type, and the lower guide rail 35 and the upper rail 36 are interposed and reciprocally reciprocated with respect to the center and the left and right planting transmission boxes 37. Way to support. Below the planting transmission case 37, the interlacing depth adjusting member supports the central and left and right planting equalizing floating plates 38, 39. Therefore, the planting depth of the seedlings taken out from the seedling pad on the seedling table 31 is set by lowering the planting portion 30 and landing the floating plates 38 and 39.

Next, the tank application agent dispersing device which is characterized by the present invention will be described in detail. Fig. 3 is a rear view of the seedling table provided with the box application agent dispersing device; Fig. 4 is an enlarged perspective view of the spreading unit including the scattering funnel.

As shown in Fig. 3, a box application agent dispersing device 51 as a dispersing device is detachably attached to the above-described loading table 31. The tank application agent dispersing device 51 is disposed above the seedling loading table 31 (behind the body), and is applied to the seedling pad at the same time as the seedling transplanting, and is opposed to the seedling mat placing portion 52 of the seedling loading table 31. Configuration. In addition, since the body of the seedling mat placing portion 52 on the seedling loading table 31 is oriented in one row, the seedling loading table 31 of the illustrated example is used for eight rows. In addition, the seedling mat and the floating plates 38 and 39 are omitted in the figure.

Then, the tank application agent dispersing device 51 is composed of a frame 53, a lead portion 55 provided in each of the plurality of scattering funnels 54, and a conveying portion 56. Further, the frame 53, the staying member 58 is supported by each of the planting portions 30, and the rear of the seedling loading table 31 is detachably attached to the loading and unloading table 31 in the left and right width direction, and The frame 53 is mounted with a plurality of spreader funnels 54 in a straight line. At this time, the frame 53 is placed at both ends of the loading table 31 so that the position of the upper end portion of the lid portion 54a in each of the scattering funnels 54 becomes a position a lower than half the height of the seedling loading table 31. Location.

The spreader funnel 54 is for storing a drug applied to a seedling pad (not shown). As shown in FIG. 4, a cover portion 54a is provided on each of the upper portions of each of the spreader funnels 54, and the cover portion 54a is opened to open the cover portion 54a. The medicament is replenished inside the diffuser funnel 54. In addition, the lid portion 54a is appropriately attached to the main body of the distribution funnel 54 so as to be openable and closable by a fixing means (not shown).

In addition, each of the lower portions of each of the scattering funnels 54 has inclined portions 54ba and 54bb having left and right end portions which are inclined downward from the central portion in two directions (described later in detail). Each of the lower portions has a funnel shape, and openings 54ca and 54cb are provided at the bottom and bottom portions b of the left and right ends, respectively. Therefore, the medicine stored in the spreader funnel 54 is lowered to the lower end portion of the diffuser funnel 54 by its own weight, and is branched in the left and right directions along the inclined portions 54ba and 54bb, and from the opening portion 54ca of each bottom b, 54cb is dropped on the lead-out portions 55a and 55b connected to the lower side.

In addition, the agent treated by the tank application agent dispersing device 51 is used as an insect repellent for inhibiting pests, rice fever, and sheath blight, etc., which are mainly formed of powder materials, but are mainly formed into granular materials. It is not limited to this.

Next, each of the lead-out portions 55a and 55b is formed by sequentially discharging the medicine stored in the spreader funnel 54 by a predetermined amount, and is formed by the lead-out boxes 55aa and 55ba, a take-up roll (not shown), a roller shaft 55c, and the like. Further, the roller shaft 55c, the nipper gear 59 is connected to the roller shaft 55c of the lead-out portion 55 of the adjacent scatterer funnel 54, and is attached to the load-bearing table at one end or the middle portion of the roller shaft 55c. A drive motor (not shown) at the appropriate position of 31. Further, the roller shaft 55c may be driven by a PTO shaft (not shown) that is driven by the planting portion 30.

Then, each of the lead-out boxes 55aa and 55ba connected to the lower end portion of the diffuser funnel 54 is a box-shaped member having an opening on the lower surface, and accommodates the above-described take-up rolls in the inside thereof. Further, the internal spaces of the lead-out boxes 55aa and 55ba are divided into an upper half and a lower half via the above-described take-up rolls. Therefore, the medicine dropped from the spreader funnel 54 is filled in the space above the upper half of the lead-out boxes 55aa and 55ba. Further, the above-mentioned take-up roll is a substantially cylindrical member, and a plurality of grooves are provided on the outer peripheral surface thereof; and the longitudinal direction of the groove is the longitudinal direction of the roll shaft 55c penetrating the both end faces of the respective take-up rolls (axis center) Direction) is slightly consistent.

Further, the roller shaft 55c is rotatably used to pivot the shaft of each of the lead-out rollers inside the lead-out boxes 55aa and 55ba, and penetrates the lead-out rollers; and both ends of the roller shaft 55c are taken out from the lead-out box The left and right sides of 55aa and 55ba protrude. Then, by rotating the drive roller shaft 55c, the aforementioned take-up rolls accommodated in the lead-out boxes 55aa, 55ba can be rotated.

Then, one of the medicines filled in the upper half space of the lead-out boxes 55aa and 55ba comes into contact with the outer peripheral surface of each of the above-mentioned respective take-up rolls, and the part is housed in a groove provided on the outer peripheral surface of the lead-out rolls. Then, when the take-up rolls are rotated, only the medicine contained in the grooves of the take-up rolls moves to the lower half space of the take-up rolls 55aa, 55ba, and falls from the grooves to the lower side. Further, by changing the number, length, depth, and width of the grooves provided in the above-described take-up rolls, the amount of the drug to be derived can be appropriately selected.

Next, the conveyance parts 56a and 56b are connected to each of the lead-out parts 55a and 55b. The conveyance units 56a and 56b convey the medicines derived by the lead-out portions 55a and 55b, and are also applied to the bed soil of the seedling mat (not shown).

Then, each of the conveying portions 56a and 56b is mainly composed of hoses 56aa and 56ba and nozzles 56ab and 56bb. Therefore, one of the scattering funnels 54 has a configuration in which two hoses 56aa and 56ba are provided to sandwich the respective lead-out portions 55a and 55b. Further, a configuration may be adopted in which the hoses 56aa and 56ba or the nozzles 56ab and 56bb are formed to be expandable and contractible, and the nozzles 56ab and 56bb are extended to the lower end position of the seedling pad mounting portion 52, and from the nozzles 56ab, 56bb spreads the spread on the ground. Further, since the nozzles 56ab and 56bb are provided in the vicinity of the left and right end portions of the diffuser funnel 54, and the gap between the seed hoppers 54 is able to take out the seedlings of the seedling mats, the funnel can be placed in each of the diffusers. The space between the 54 is ensured, and the seedlings are easily taken out from the spreader funnel 54.

Further, in the tank application agent dispersing device 51 of the present invention, one of the scattering funnels 54 is a unit u that integrates the lead-out portions 55a and 55b and the conveying portions 56a and 56b, and each unit can be used for each unit. u integrated loading and unloading. In other words, the tank application agent dispersing device 51 is composed of a plurality of units u. Further, even in the body of the spreader funnel 54, a configuration in which the opening portion of the bottom portion is integrally formed can be formed.

Therefore, the seedling mat placing portion 52 of the seedling loading table 31 can remove, for example, the seedling mat placing portion 52 of each row located at both ends thereof or the two rows of the seedling cushions at the ends of the left and right sides. When the placing portion 52 is folded and placed behind the seedling pad placing portion 52 at the center portion of the seedling loading table 31, the unit u located at the center portion of the seedling loading table 31 is detached from the frame 53, and Each unit u is integrally attached to a frame 53' that does not hinder the folding storage of the seedling pad mounting portion 52.

Then, the medicines discharged from the lead portions 55a and 55b are dropped into the hoses 56aa and 56ba, and the medicines are spread from the nozzles 56ab and 56bb to the bed soil of the seedling mat (not shown). Further, at the lower ends of the nozzles 56ab and 56bb, a cylindrical rotating body (not shown) is rotatably fitted, and a plurality of projections (not shown) are provided on the outer circumference of the rotating body, so that the seedling mat can be provided. Arranged in abutting manner, and provided with a scraper s protruding from the rotating body and extending on the inner surface of the front end of the nozzles 56ab, 56bb. Therefore, by the doctor blade s, the medicine can be dispensed at the time of the seedling transplanting, and the seedling loading table 31 can be reciprocated to the right and left, and the rotating body can be rotated by abutting against the seedling or the like with the reciprocating movement, and the rotation is scraped off by the rotation. The mud or the chemical at the tip end of the nozzles 56ab and 56bb can prevent clogging of the nozzles 56ab and 56bb.

With such an arrangement, it is possible to form a configuration in which two rows of the seedling pad placing portions 52 arranged on the seedling loading table 31 are placed on the scattering material by one of the scattering funnels 54. Each of the lead-out portions 55a and 55b of the funnel 54 is carried out by two hoses 56aa and 56ba. Therefore, if the seedling pad placing portion 52 (miao pad) located on the seedling loading table 31 has an even number of rows n, the n/2 scattering funnels 54 are attached to the frame 53, and the like. N/2 spread funnels 54 were applied to each row.

Further, when the seedling mat placing portion 52 has an odd number of rows m, the (m-1)/2+1 diffusing funnels 54 are attached to the frame 53, and thus (m-1) /2+1 spread funnels 54 are applied to each row. Further, in this case, only one of the scattering funnels 54 attached to the frame 53 has a configuration in which only the outlet portion 55 and the conveying portion 56 are disposed at one bottom of the scattering funnel 54 and one from one The spreader funnel 54 is applied to only one row of the seedling pad placing portion 52 by one hose 56.

Therefore, the scattering funnel 54 may have a shape of a funnel-shaped rectangular parallelepiped or a cube provided at one end of the bottom portion for connecting the opening portion of the lead-out portion 55, but may have a downward direction from the central portion as described above. The shape of the inclined portions 54ba and 54bb inclined in the two directions may be configured such that one of the lead portions 55 is closed and only the other lead portion 55 is used.

By forming the above configuration, it is not necessary to divide the lead-out portion 55 in each of the spreader funnels 54, and the lead-out portion 55 can be formed into a simple structure, and the medicine of the lead-out portion 55 can be prevented from being clogged, and the medicine can be surely Ground The medicine is applied to each row of the seedling pad placing portion 52. In addition, since the application of the seedling pad placing portion 52 (the seedling pad) in two rows is performed by one of the scattering funnels 54, it is not necessary to connect a plurality of hoses to one of the scattering funnels 54, and the supply can be suppressed. The dose of the spreader funnel 54 is supplied to the frequency, and the volume of one of the spreader funnels 54 can be reduced, and the spreader funnel 54 can be stably placed on the frame 53. Further, the visibility of the seedling mat on the seedling loading table 31 can be improved, and since the installation position of the spreader funnel 54 is low, the operator can easily perform an operation such as replenishment of the medicine.

Next, in the spreader funnel of the present invention, it is possible to form a structure that can expand and contract in the vertical direction. Figure 5 is a cross-sectional rear view showing the bottom of one end of the diffuser funnel; Figure 6 is a cross-sectional rear view showing the bottom of one end of the funnel of the spread of the bellows structure; Figure 7 is a model showing the expansion and contraction of the funnel funnel. Figure 8 is an enlarged rear view of the diffuser funnel.

The main body of the distribution funnel 54 is formed by integrally molding a synthetic resin such as plastic. However, as shown in Fig. 5, the outer circumferences of the left and right bottom portions b of the lead-out portions 55a and 55b may be connected, for example, by a mountain peak and The bellows structure f formed by the repetitive structure of the valley is formed. In other words, as shown in Fig. 7, when, for example, only a small amount of the medicament is added to the spreader funnel 54, the operator grasps the appropriate position of the spreader funnel 54, by lifting the spreader funnel 54 upward As shown in Fig. 6, the upper end of the bellows structure f can be extended from the position A to the position B, and the spreader funnel 54 can be slid to the upper position.

By forming such a configuration, when the medicine is supplied to the spreader funnel 54, the height position of the spreader funnel 54 can be easily moved up and down by extending the bellows structure f in accordance with the height of the operator. The drug supply operation is easily performed. Further, for example, when the upper end of the spreader funnel 54 in which the spreader funnel 54 is set to the fixed position is the position a (the upper end of the bellows structure f is in the position A), when the medicine is excessively filled up to the upper end of the spreader funnel 54, The spread funnel 54 is raised to the height of the position a' (the upper end of the bellows structure f is at the position B) by extending the bellows structure f as described above.

As a result, since the reserve space s can be formed at the bottom b of the spreader funnel 54, the medicament flows into the spare space s, and the dose level at the upper end of the spreader funnel 54 is lowered, and the spread funnel 54 can be surely closed. Cover portion 54a.

According to the above configuration, the height position of the spreader funnel 54 can be easily changed in a simple configuration, and the workability of the medicine supply operation or the closing of the lid portion can be improved.

Further, as shown in Fig. 8, the lower portion of each of the scattering funnels 54 is provided with inclined portions 54ba and 54bb for tilting the left and right end portions from the central portion downward in the two directions and on the ground. The horizontal plane has an angle of repose α of about 20 degrees, and the lower portions of the right and left sides are funnel-shaped, and the bottom portions b of the left and right ends are provided with openings 54ca and 54cb, respectively. Further, although the angle of repose α can be set to 20 degrees or more, it is preferably about 20 degrees so that the volume of the large spreader funnel 54 can be obtained.

With such a configuration, the medicine in the distribution funnel 54 can be moved from the vicinity of the center of the distribution funnel 54 toward the left and right end portions, and the inclined portion 54ba of the rest angle α or more can be easily removed in addition to the vibration of the body. Since the surface of 54bb collapses, it is possible to surely induce the medicine to the lead portions 55a and 55b provided at both end portions of the bottom portion b. Further, since the lead portions 55a and 55b are provided at the bottom b of the left and right ends of the spreader funnel 54, the medicines are not blocked from the respective lead portions 55a and 55b, and can be reliably and smoothly spread on the spreads. The funnel 54 is divided into two directions of medicament.

Next, the spreader funnel of the present invention has a holding portion. Fig. 9 is a perspective view of a diffuser funnel having a grip portion on a surface of the diffuser funnel; and Fig. 10 is a perspective view of a diffuser funnel having a grip portion on a side surface of the diffuser funnel.

First, as shown in Fig. 9, in each of the scattering funnels 54, a nip portion 58 integrally formed with the lid portion 54a is protruded from the surface of the lid portion 54a. Therefore, the material of the grip portion 58 can be a synthetic resin such as a general-purpose plastic similar to the spreader funnel 54. Further, on the inner circumferential surface of the upper portion of the nip portion 58, an uneven portion 58a or the like which can be fitted with a finger can be formed.

By forming such a configuration, as described above, one of the scattering funnels 54 is a scattering unit u that integrally forms the outlet boxes 55a and 55b, the hoses 56aa and 56ba, and the nozzles 56ab and 56bb. When the scatter unit u is attached or detached by maintenance or the like, by holding the nip portion 58 provided in the hopper 544, the scatter unit u is not dropped and can be reliably held, and can be safely held. Easy loading and unloading operations. Further, the nip portion is not limited to the upper surface portion of the lid portion 54a of the scatterer funnel 54, and is provided on the left and right side surfaces of the main body of the hopper funnel 54 as shown in Fig. 10 (may also be The same effect can be obtained by using the side portion of the left and right sides as the nip portion 58'. Further, although the holding portion is not shown, it may be provided on both the upper surface portion of the lid portion 54a and the left and right side surface portions of the main body of the diffuser funnel 54.

The spreader funnel 54 of the present invention is provided with a position changing means capable of changing the installation position of the nozzle. Fig. 11 is a structural view showing a conveying portion including a position changing means including an elastic pin and a positioning hole; Fig. 12 is an explanatory view showing a change in a nozzle installation position; and Fig. 13 is a configuration including a projection and a positioning groove A side view of the conveyance unit of the position changing means, and Fig. 14 is a side view of the conveyance unit including the position changing means formed by the elastic member.

As shown in Fig. 11, the transport unit 56a (in the figure, one of the transport units 56, which may be the transport unit 56b) is constituted by a hose 56aa and a nozzle 56ab including the position changing means 60, and the hose 56aa The inner rotating portion 61 is attached to the lower end of the inner rotating portion 61; the outer fixing portion 62 is rotatably fitted into the inner rotating portion 61, and is The upper end portion is attached to the lead portion 55a. The outer peripheral surface of the upper end portion of the inner rotating portion 61 is provided with an elastic pin 61a for attaching the pin 61c to the elastic body 61b such as a spring so as to be rotatably provided at the opposing position.

On the other hand, in the outer peripheral surface of the upper portion of the outer fixing portion 62, a plurality of positioning holes 62a into which the elastic pins 61a can be fitted are formed at the opposing positions along the outer peripheral surface. Therefore, the conveying portion 56a is such that the inner rotating portion 61 is fitted to the outer fixing portion 62, and the elastic pins 61a are fitted in the opposing positioning pins 62a of the outer fixing portion 62 to fix the inner fixing portion 61 and can be fixed. The position of the nozzle 56ab is set.

Here, as shown in Fig. 12, the box application agent dispersing device 51 is attached to a seedling loading table 31 or the like which is different from the normal one, and the seedling pad mounting portion 52 is not shown. When the distance between the rows of the nozzles 56ab is changed, for example, when the nozzles 56ab (56bb) are changed to the outside of the machine with the seedlings having a longer inter-row distance than usual, the operator first Each of the elastic pins 61a protruding from the positioning hole 62a is compressed by a finger to a position where it does not protrude from the positioning hole 62a.

Next, the operator rotates the inner rotating portion 61 such that the nozzle 56ab faces the outside of the machine, and the elastic pins 61a are embedded in the nozzle 56ab by the elastic force of the elastic body 61b at the left side of the seedling pad (at the nozzle 56bb). The case is the positioning hole 62aa at the end of the right side to fix the inner rotating portion 61, and the position at which the nozzle 56ab is set can be fixed. Further, the interval between the positioning holes 62a is plural in accordance with the length width of the seedling pad of the nozzles 56ab located at the right and left end portions of the seedling mat.

With such a configuration, the operator can easily change the positions of the nozzles 56ab, 56bb by inserting the elastic pin 61a into the positioning hole 62a without using another tool, and the box application agent dispersing device 51, Even the seedling table 31 having different distances between rows can be easily installed. In addition, when the installation position of the nozzle 56ab is changed to the inside of the machine body, the operation is performed in the opposite direction in the same manner as described above, and thus the description thereof will be omitted.

Next, another embodiment of the position changing means will be described. In this case, as shown in Fig. 13, the position changing means 60' provided as the hose 56aa is provided on the outer peripheral surface of the upper end portion of the inner rotating portion 61', and the projection 61a' is provided at the opposing position. On the other hand, on the outer peripheral surface portion of the outer fixed portion 62', a slide rail 1 for slidable the projection 61a' is formed, and from the relative position of the slide rail 1 along the outer peripheral surface to the position of the outer peripheral surface A plurality of positioning grooves 62a' having the same width as the slide rail 1 are formed.

Therefore, the conveying portion 56a is such that the inner rotating portion 61' is fitted to the outer fixing portion 62', and the respective projections 61a' are fitted in the opposing positioning grooves 62a' of the outer fixing portion 62 to fix the inner rotating portion 61'. And the setting position of the nozzle 56ab can be fixed. Further, the projection 61a' is formed by providing a bulging portion at the tip end to prevent the projection 61a' from falling off from the slide rail 1 and the positioning groove 62a'.

Here, as described above, when the nozzle 56ab (56bb) is changed toward the outside of the machine, the operator first raises the inner rotating portion 61' so that the respective protrusions 61a' protruding from the positioning groove 62a' are on the slide rail 1 Sliding inside. Next, the operator rotates the inner rotation portion 61' along the inside of the slide rail 1 so that the inner rotation portion 61' descends while the nozzle 56ab faces the outside of the machine body, and causes the projections to be lowered while the inner rotation portion 61' is lowered. 61a' is lowered until the nozzle 56ab is located at the lower end of the positioning groove 62aa' at the end of the seedling pad (right in the case of the nozzle 56bb) to fix the inner rotating portion 61, and the position of the nozzle 56ab can be fixed. Further, the interval between the positioning grooves 62a' is plural in accordance with the length of the seedling mat of the nozzles 56ab located at the right and left end portions of the seedling mat.

With such a configuration, the operator can easily change the positions of the nozzles 56ab, 56bb by sliding the projections 61a' to the corresponding positioning grooves 62a' without using another tool; The spreading device 51 can be easily installed even in the seedling loading table 31 having different distances between rows.

Furthermore, the position changing means may have the following configuration. In this case, as shown in Fig. 14, the position changing means 60" provided in the hose 56aa is provided on the outer peripheral surface of the lower end portion of the lower rotating portion 61", and a plurality of lower portions are slightly expanded along the outer peripheral surface thereof. Positioning recess 63. Moreover, the outer peripheral surface of the upper end including the positioning recessed portion 63 is composed of an elastic member such as synthetic rubber. Further, the interval between the positioning recesses 63 is plural in accordance with the length of the seedling mat of the nozzles 56ab located at the right and left end portions of the seedling mat.

Further, on the outer peripheral surface of the lower end of the upper fixing portion 62', a convex portion 64 which can be closely fitted to the positioning concave portion 63 and which is convex under the same number as the positioning concave portion 63 is formed. Further, the outer peripheral surface of the lower end including the convex portions 64 is also made of an elastic member such as synthetic rubber. Therefore, as described above, when the position of the nozzle 56ab (56bb) is changed, the operator first lowers the lower rotating portion 61" to release the fitting of the positioning concave portion 63 and the convex portion 64, and the convex portion 64 is fitted to The lower rotating portion 61" is rotated to the positioning concave portion 63 at the position where the nozzle 56ab is changed, whereby the convex portion 64 can be fitted to the positioning concave portion 63 which is deformed by the press-fitting of the convex portion 64, and the lower rotating portion 61 can be fixed. ".

By forming such a configuration, the convex portion 64 is brought into close contact with the positioning concave portion 63, whereby the convex portion 64 can be sandwiched and fixed in the deformed positioning concave portion 63, so that the operator does not need to use another tool. The position of the nozzles 56ab, 56bb can be easily changed; and the tank application dispersing device 51 can be easily installed and used even if the seedling table 31 having a different distance between rows is used. Further, the convex portion 64 and the positioning concave portion 63 are not limited to the above-described forming position, and the convex portion 64 may be formed in the lower rotating portion 61", and the positioning concave portion 63 may be formed as the upper fixing portion 62". Further, the convex portion 64 may be formed in an expanded shape.

Next, the configuration of the planting stop clutch for the planting unit 30 will be described. This row of planting stop clutches refers to a clutch mechanism that is respectively disposed in the planting electric box 37 located in the planting unit 30, and is configured to switch the presence or absence of driving of the planting unit for each of the planting electric boxes 37. The interplanting stop clutch is switched by operating a row insertion stop lever (not shown) placed on the driver's seat 21. This row of planting stop levers is provided in total for each of the planting electric boxes 37, and the configuration can be independently operated.

Next, the configuration of the clutch for stopping the planting insertion will be specifically described. Figure 15 is a plan sectional view showing the inside of the planting box. As shown in Fig. 15, in each of the planting electric boxes 37, a drive transmission shaft 150 that transmits a rotational driving force from a PTO shaft (not shown) provided in the vehicle body 10 is disposed. At the rear end of the drive transmission shaft 150, a first bevel gear 51 is fixed. Further, in each of the planting electric boxes 37, the planting portion drive shaft 152 is disposed along the left-right direction of the vehicle body.

Both end portions of the planting portion drive shaft 152 project outward from the right and left of the planting electric box 37, and a rotating box 136a is attached to each of the both end portions. Further, in each of the planting electric boxes 37, a first clutch member 153 that is fitted to the planting portion drive shaft 152 by a spline is disposed, and a relative rotation with respect to the planting portion drive shaft 152 is performed. The second clutch member 154 supported in this manner.

The first clutch member 153 and the second clutch member 154 are respectively formed with clutch claws that face each other in the axial direction of the planting portion drive shaft 152. Then, the clutch members of the first clutch member 153 and the second clutch member 154 can be engaged with each other. In other words, the first clutch member 153 and the second clutch member 154 can constitute a snap-on clutch (a clutch for stopping planting).

Further, the first clutch member 153 is attached so as not to be rotatable relative to the planting portion drive shaft 152 by the above-described pin groove fitting. On the other hand, the second helical gear 155 is formed in the second clutch member 154, and the second helical gear 155 is engaged with the first helical gear 151. With the above configuration, in a state in which the first clutch member 153 and the second clutch member 154 are engaged (a state in which the clutch is "contacted"), the driving force of the drive transmission shaft 150 can be transmitted to the planting portion drive shaft 152. Thereby, the planting unit 30 can be driven to the left and right (2 rows) of the electric box 37.

On the other hand, since the first clutch member 153 is fitted to the planting portion drive shaft 152 by the pin groove, the first clutch member 153 can be moved in a direction away from the second clutch member 154 (that is, a direction in which the clutch pawl is released). Thereby, the clutch is "cut away", and the driving of the planting portion 30 (two rows) of the electric box 37 can be stopped. Further, the first clutch member 153 is biased in a direction in which it engages with the second clutch member 154 by the spring 156. Therefore, in the normal state, the first clutch member 153 and the second clutch member 154 are held in a state of being engaged (the clutch is "contacted").

Next, a configuration in which the clutch configured as described above can be operated by the row insertion stop lever 16 will be described. Figure 16 is a side view of the model of the planting box. As shown in Fig. 16, the L-shaped clutch lever 158 is attached to the outside of each of the planting electric boxes 37 in a state in which the intermediate portion can be rotatably supported by the stopper pin 159. At one end of the clutch lever, a wire 160 is attached, and the wire 160 is connected to the aforementioned rowing and stopping lever. By inserting the planting stop lever in this configuration, the clutch lever 158 can be rotated centering on the position of the stopper pin 159.

Further, at the other end of the clutch lever 158, one end of the clutch operating pin 157 is attached. The other end of the clutch operating pin 157 is inserted into the planting electric box 37. By inserting the planting stop lever in this configuration, the clutch operating pin 157 can be pressed into the planting electric box 37. On the other hand, as shown in Fig. 15, a cam portion 153a is formed in the first clutch member 153. Then, when the clutch operating pin 157 is pressed into the planting electric box 37, the front end of the clutch operating pin 157 abuts against the cam portion 153a, and the first clutch member 153 can be moved away from the second The direction of the clutch member 154 (the direction in which the clutch is "cut away") moves.

As described above, by operating the row insertion stop lever, it is possible to cut off the planting insertion stop clutch corresponding to the planting electric box 37, and to provide the two planting units provided in the planting electric box 37. The drive of 136 is stopped, and the planting operation can be stopped locally.

Next, the configuration of the deriving unit 55 will be described in detail. Figure 17 is a side cross-sectional view of the spreading unit. As shown in FIG. 17, the lead-out unit 55 is provided with an export box 55aa (55ba), a take-up roll 125, and a brush 126. The lead-out boxes 55aa (55ba) are respectively attached to the lower portions of the two communicating portions 145a formed in the spreader funnel 54. The lead-out roller 125 is disposed inside the space formed by the lead-out box 55aa (55ba) and the communicating portion 145a. The take-up roll 125 is formed into a disk shape having a thickness, and a plurality of concave portions 125a are formed at a predetermined interval on the outer peripheral surface thereof.

According to the above configuration, the granular tank application agent in the spreader funnel 54 can be successively dropped into the inside of each of the concave portions 125a by a fixed amount. Then, the take-up roll 125 is rotationally driven at a predetermined speed, whereby the take-up roll 125 functions as a so-called waterwheel, and the tank application agent in the spreader funnel 54 is led toward the shooter 147 at a predetermined supply speed. .

Further, the brush 126 is disposed in contact with the outer peripheral surface of the take-up roll 125. The brush 126 is for blocking the tank application agent so that the tank application agent in the spreader funnel 54 does not flow downward through the gap between the take-up roll 125 and the lead-out box 55aa (55ba).

The two lead rollers 125 included in the scatter unit u are fixed to the lead-out drive shaft 148 provided in each of the scatter units u. Further, at one end of the lead-out drive shaft 148, a unit-side clutch member 149 described in Fig. 18 which will be described later is attached. Further, the unit side clutch member 149 is disposed on the left side in the traveling direction as the scattering unit uL, and on the right side is the scattering unit uR.

A clutch pawl is formed in the unit side clutch member 149. Then, the unit side clutch member 149 is engaged with the frame side clutch member 176 to be described later, and the rotational driving force is input to the lead-out drive shaft 148, so that two (two-row) discharge rollers 125 provided in the scattering unit u can be provided. At the same time, the drive is rotated and the tank application agent in the spreader funnel 54 is derived.

Next, a configuration for transmitting the driving force from the planting electric box 37 to the derivation drive shaft 148 provided in each of the scattering units u will be described. First, a configuration for taking out the driving force from the planting electric box 37 will be described. Any one of the aforementioned planting electric boxes 37 is disposed such that the rear end portion thereof is opened, and the drive take-out box 161 is attached to the rear end portion. In the case of the present embodiment, the drive take-out case 161 is attached to the end portion of the second planting electric box 37 from the left side of Fig. 15 . The state inside the drive take-out case 161 is shown in Fig. 15.

As shown in Fig. 15, a PTO shaft 162 for a spreader is disposed inside the drive take-out case 161. At one end of the PTO shaft 162 for the spreader, a third helical gear 163 that is engaged with the second helical gear 155 is fixed, and a drive gear 164 is fixed to the other end. On the other hand, the drive take-out case 161 is rotatably supported by the drive take-out shaft 165, and a trailing gear of the omitted figure that is engaged with the drive gear 164 is fixed to the front end of the drive take-out shaft 165, and then The end protrudes rearward from the drive take-out case 161. According to the above configuration, the rotational driving force can be taken out from the rear of the planting electric box 37.

Next, a description will be given of a drive transmission mechanism that transmits the rotational driving force extracted from the planting electric box 37 to each of the scattering units u. The frame 53 is provided with a link mechanism (link portion) 191 that transmits the driving force from the planting portion 30, a one-way clutch mechanism 170, and a driving force distribution mechanism 192.

Fig. 18 is a model diagram of the drive transmission mechanism; Fig. 19 is a perspective view illustrating the drive transmission mechanism. As shown in FIGS. 18 to 19, the link mechanism 191 includes a crank plate 166 attached to the rear end of the drive take-out shaft 165, and a longitudinal link member that connects one end to the crank plate 166. 167; and a first drive transmission lever 168 coupled to the other end of the longitudinal link member 167. The rotational motion taken out from the planting electric box 37 by driving the take-out shaft 165 is converted into a vertical reciprocating motion by the crank plate 166 and the longitudinal link member 167, and transmitted to the first drive transmission lever 168.

The first drive transmission lever 168 is rotatably attached to a first drive transmission shaft 172 which will be described later. With this configuration, the longitudinal link member 167 reciprocates upward and downward, and can be converted into a reciprocating rotational motion centering on the axis of the first drive transmission shaft 172 by the first drive transmission lever 168.

The one-way clutch mechanism 170 includes a second drive transmission lever 169 that is rotatably attached to the first drive transmission shaft 172, and is configured to transmit only when the second drive transmission lever 169 is rotated in one direction. The driving force is to the first drive transmission shaft 172. Then, the second drive transmission lever 169 is configured to be in contact with the first drive transmission lever 168.

Thereby, the reciprocating rotational motion of the first drive transmission lever 168 can be transmitted to the second drive transmission lever 169, and only the rotational drive force in one direction can be transmitted to the first drive transmission shaft 172 by the one-way clutch mechanism 170. According to the above configuration, the driving force extracted from the planting unit 30 can be transmitted to the first drive transmission shaft 172, and the first drive transmission shaft 172 can be intermittently rotationally driven in one direction.

Next, the driving force distribution mechanism 192 will be described. The driving force distribution mechanism 192 is composed of the first drive transmission shaft 172, the first drive transmission gear 173, the second drive transmission gear 174, the second drive transmission shaft 175, and the frame side clutch member 176.

As shown in Fig. 18, the first drive transmission shaft 172 is disposed in the direction in which the dispersion unit u is arranged (the left and right direction of the vehicle body). Further, the first drive transmission gear 173 is fixed to each of both ends of the first drive transmission shaft 172. Therefore, the tank application agent spreader 40 of the present embodiment includes two first drive transmission gears 173. Further, each of the two first drive transmission gears 173 is provided with a second drive transmission gear 174 that meshes with the first drive transmission gear.

Therefore, the tank application agent dispersing device 51 of the present embodiment includes two second drive transmission gears 174. Further, the first drive transmission gear 173 and the second drive transmission gear 174 are housed in the gear case 177. Further, in Fig. 19, in order to more clearly illustrate the configurations of the first drive transmission gear 173 and the second drive transmission gear 174, the upper portion of the gear case 177 is shown in a broken line in a broken line.

The two second drive transmission gears 174 are respectively fixed to the central portion of the second drive transmission shaft 175 disposed in the axial direction. Therefore, the tank application agent dispersing device 51 of the present embodiment includes two second drive transmission shafts. The second drive transmission shaft 175 is disposed in parallel with the first drive transmission shaft 172. Then, frame side clutch members 176 are attached to both ends of each of the second drive transmission shafts 175. That is, the tank application agent dispersing device 51 of the present embodiment is provided with four frame side clutch members 176. Further, the four frame side clutch members 176 are disposed at positions corresponding to the respective attachment positions of the four scattering units u.

A clutch pawl is formed in the frame side clutch member 176. Then, the clutch pawl formed on the frame side clutch member 176 and the clutch pawl formed on the unit side clutch member 149 are disposed to face each other in the left-right direction of the vehicle body in a state in which the dispersing unit u is attached to the support frame. Then, the clutch pawls formed on the two clutch members 149, 176 are configured to be engageable. That is, the unit clutch (bite clutch) 178 can be configured by the frame side clutch member 176 and the unit side clutch member 149. The unit clutch 178 can be said to be disposed for each of the spreading units u.

With the above configuration, the driving force extracted from one of the planting electric boxes 37 is transmitted via one link mechanism 191 and one one-way clutch mechanism 170, and the four units can be driven by the driving force distribution mechanism 192. Clutch 178 is assigned. As described above, since only one of the link mechanism 191 and the one-way clutch mechanism 170 is sufficient, the drive transmission mechanism can be formed into a simple configuration.

Then, by bringing the unit clutch 178 into a "contact" state (a state in which the unit side clutch member 149 is engaged with the frame side clutch member 176), the driving force can be transmitted to the derivation drive shaft 148 of each of the scattering units u. And the discharge roller 125 of each of the scattering units u is rotationally driven.

Further, when the clutch is configured as a snap-on clutch and the clutch member is disposed at the end portion of the drive transmission shaft, only two clutch members can be disposed on one drive transmission shaft. That is, the driving force can only be assigned to the two spreading units. In this regard, in the above configuration, the transmission gears 173 and 174 are interposed by the first drive transmission shaft 172, and the driving force is divided by the plurality of second drive transmission shafts 175.

Therefore, by attaching the frame side clutch member 176 to both ends of the plurality of second drive transmission shafts 175, it is possible to distribute the driving force to the three or more scattering units u. Further, between the drive transmission gears 173 and 174, there may be other drive transmission gears (that is, the drive transmission gears 173 and 174 may be indirectly engaged with each other). Thereby, the second drive transmission shaft 175 can be disposed relatively freely, and the degree of freedom in the arrangement layout of the dispersion unit u can be increased.

Further, as described above, in the present embodiment, by providing the deriving unit 55 for each row, each of the dispersing units u can be disposed at a lower position (near the planting electric box 37). Thus, the shorter longitudinal link member 167 can be constructed, and the link mechanism 191 can be simply constructed.

Next, the configuration of the unit clutch 178 will be described in detail. Fig. 20 is a perspective view showing the configuration of the vicinity of the clutch of the amplifying unit. As shown in FIG. 20, the unit side clutch member 149 is biased in a direction in which it engages with the frame side clutch member 176 by the spring 179. That is, the unit clutch 178 can be held in the "contact" state by the spring pressure of the spring 179.

Next, a configuration of a clutch interlocking mechanism for switching the unit clutch 178 to the "cutaway" state in conjunction with the row planting stop clutch will be described. Fig. 21 is a perspective view showing the support frame in a state after the dispersing unit is removed. As shown in Fig. 21, a frame side clutch operating lever (frame side contact member) 185 is rotatably supported by the frame 53. The frame side clutch operating lever 185 is provided corresponding to the four distributing units u.

Therefore, in the frame 53 of the present embodiment, four frame side clutch operating levers 185 are provided. Further, one end of the clutch operating force transmission wire (clutch operating force transmitting member) 186 is connected to each of the frame side clutch operating levers 185. Then, as shown in Fig. 16, the other end of each of the clutch operating force transmission wires 186 is coupled to the clutch operating pin 157 provided in the corresponding planting electric box 37. In this configuration, the frame side clutch operating lever 185 can be rotated by the displacement of the clutch operating pin 157.

Here, the term "corresponding planting electric box 37" means the position of the planting electric box 37 corresponding to the position of the distributing unit u. For example, the frame side clutch operating lever 185 provided corresponding to the leftmost spreading unit u is coupled by the clutch operating pin 157 provided in the leftmost implant electric box 37 and the clutch operating force transmitting wire 186. Further, for example, the frame side clutch operating lever 185 provided corresponding to the second spreading unit u from the left side is a clutch operating pin 157 provided by the second planting electric box 37 from the left side, and The clutch operating force transmits the wire 186 to be coupled.

Therefore, when any one of the four rows of planting stop levers is operated, and the clutch operating pin 157 of the corresponding planting electric box 37 is pressed into the planting electric box 37, the clutch can be engaged. The operation pin 157 is transmitted to the frame side clutch operating lever 185 corresponding thereto by the clutch operating force transmitting wire 186, and the frame side clutch operating lever 185 is rotated. In other words, the operation of the planting stop clutch and the operation of the frame side clutch operating lever 185 can be interlocked.

Further, Fig. 22 is a perspective view of the dispersing unit; Fig. 23 is a perspective view of the dispersing unit seen from a different angle from Fig. 22. As shown in FIGS. 22 to 23, the unit-side clutch operating lever (unit-side contact member) 180 is rotatably attached to the plate-like member 128 of the spreading unit u. The unit side clutch operating lever 180 is composed of a clutch member abutting portion 181 and an operation input portion 182.

The clutch member abutting portion 181 is disposed so as to be able to abut against the collar portion 149a formed on the outer circumference of the unit side clutch member 149. The operation input unit 182 is configured as a plate-like portion and is fixed to the clutch member abutting portion 181. By pressing the operation input portion 182 in a predetermined direction, the unit side clutch operating lever 180 can be rotated in a predetermined direction.

Then, the unit-side clutch operating lever 180 is rotated in a predetermined direction, and the clutch member abutting portion 181 pushes the unit-side clutch member 149 to displace the unit-side clutch member 149 away from the frame-side clutch member 176. direction. Thereby, the unit clutch 78 can be "cut away".

As shown in Fig. 20, in a state in which the dispersing unit u is attached, the operation input unit 182 of the unit side clutch operating lever 180 and the frame side clutch operating lever 185 are in a close position. Then, when the row insertion stop lever is operated, the corresponding frame side clutch operating lever 185 is rotated, and the frame side clutch operating lever 185 is in contact with the operation input portion of the proximal unit side clutch operating lever 180. The contact 182 is pressed, and the operation input portion 182 is pushed in a predetermined direction.

With this configuration, the clutch-side abutting portion 181 pushes the unit-side clutch member 149 by the rotation of the unit-side clutch operating lever 180, and the position of the unit-side clutch member 149 is displaced to the direction away from the frame-side clutch member 176. Thereby, the unit clutch 178 is cut off. That is, it is configured such that the row insertion stop clutch and the corresponding unit clutch 178 can be interlocked.

Further, as described above, the planting stop clutch for inserting the electric box 37 is configured to stop planting every two rows. On the other hand, the scattering unit u is configured to drive two (two rows) of the take-up rolls 125 by one drive shaft. Therefore, the driving of the two (two-row) lead-out portions 55 can be stopped by one unit clutch 178.

Because of this configuration, it is possible to switch the planting and the application of the tank application agent for every two lines by interlocking the rowing stop clutch with the unit clutch. Further, according to the configuration described above, the number of components in the unit clutch relationship can be reduced as compared with the configuration in which one unit clutch is provided to one lead-out unit 55, and the scattering unit u and the drive transmission mechanism can be easily configured.

Next, a configuration for removing the scattering unit u from the frame 53 will be described. As described above, the unit clutch 178 is configured as a snap-in clutch composed of the unit side clutch member 149 and the frame side clutch member 176. Then, the unit side clutch member 149 can be separated from the frame side clutch member 176.

That is, the drive shaft 148 of the spreading unit u can be cut away from the drive transmission mechanism on the side of the frame 53 at a portion of the unit clutch 178. As described above, when the unit clutch 178 is configured as the snap-in clutch, when the dispersing unit u is detached from the frame 53, since the detaching operation of the mechanism for transmitting and transmitting is not required, the scatter unit can be easily detached. u.

Further, as described above, the unit side clutch operating lever 180 and the frame side clutch operating lever 185 (not mechanically coupled) are merely disposed in close proximity to each other. Thus, the unit side clutch operating lever 180 can be separated from the frame side clutch operating lever 185. Thereby, when the dispersing unit u is detached from the frame 53, since the dismounting operation of the mechanism (for example, a metal wire) for transmitting the clutch operating force is not required, the dispersing unit u can be easily removed.

Further, in the conventional box applicator spreader, since the lead-out portion cannot be easily cut away from the drive transmission mechanism on the frame side, the spread funnel and the lead-out portion cannot be collectively removed as a unit. Therefore, in the conventional box applicator spreader, in order to easily discharge the medicine remaining in the spreader funnel, a configuration in which only the spreader funnel can be removed can be formed. In this configuration, the spread funnel and the lead-out portion cannot be firmly connected, and there is a problem that rainwater infiltrates from the gap between the spread funnel and the lead-out portion to elute the medicine. Moreover, since the export unit cannot be removed from the frame, The drug remaining inside the lead-out portion cannot be easily discharged.

In this regard, in the present embodiment, by arranging the scattering unit and the drive transmission mechanism as described above, the drive transmission mechanism can be easily separated from the lead-out portion 55 from the drive transmission mechanism on the side of the frame 53. Therefore, the scattering funnel 54, the lead-out portion 55, the shooter 147, and the like can be integrated to form the scattering unit u, and the scattering unit u can be detached from the frame 53 for each of the scattering units u.

Therefore, in the configuration of the present embodiment, in order to discharge the medicine remaining in the diffuser funnel 54 and the lead-out portion 55, the dispersing unit u may be removed, and the opening lid portion 54a may be inverted for each of the dispersing units u. Therefore, it is not necessary to simply separate the spread funnel from the lead-out portion as in the conventional box applicator spreader. Therefore, in the present embodiment, the spreader funnel 54 and the lead-out box 55aa (55ab) are screwed. In this way, since the spreader funnel 54 and the outlet box 55aa (55ab) can be strongly connected, the sealing property is improved more than conventionally, and rainwater or the like is less likely to intrude into the interior.

Next, a configuration for fixing each of the scattering units u to the frame 53 will be described. As shown in Fig. 21, in the frame 53, mounting struts 187 for carrying the scatter unit u are disposed at the mounting positions of the respective scatter units u. Each of the mounting stays 187 is composed of two leg portions 188 which are arranged side by side in the left-right direction of the vehicle body, and a plate-shaped horizontal portion 189 which is horizontally spanned between the leg portions 188.

On the other hand, as shown in Fig. 22 and Fig. 23, the round bar member 127 and the plate member 128 provided in the scattering unit u are disposed in the left-right direction of the vehicle body (direction parallel to the lead-out drive shaft 148). . When the spreading unit u is carried on the mounting stay 187, the round bar member 127 is respectively carried on the leg portion 188, and the plate-like member 128 is carried on the horizontal portion 189. Thereby, since the scattering unit u can be supported by at least three points by the two leg portions 188 and the horizontal portion 189, the posture of the scattering unit u can be stabilized.

On the other hand, as shown in Fig. 21, the leg portion 188 is formed with an inclined portion 188a and a U-shaped portion 188b formed continuously from the lower end of the inclined portion 188a. With this configuration, when the scattering unit u is placed on the attachment stay 187, the scattering unit u is moved to slide downward by its own weight in a state where the round bar member 127 abuts against the inclined portion 188a.

Thus, the round bar member 127 is naturally guided by the aforementioned inclined portion 188a, and the round bar member 127 is embedded inside the U-shaped portion 188b, whereby the spreading unit u can be positioned in the front-rear direction of the vehicle body. Then, in a state where the dispersing unit u is positioned in the front-rear direction of the vehicle body, the clutch members 149 and 176 are mutually opposed to each other.

Further, the horizontal portion 189 and the plate-like member 128 each have a certain length in the left-right direction of the vehicle body. That is, even if the position of the scattering unit u is shifted to some extent in the left-right direction of the vehicle body, the plate-like member 128 can be carried on the horizontal portion 189. On the other hand, the interval between the two leg portions 188 is shorter than the length in the left-right direction of the body of the round bar member 127. That is, even if the position of the spreading unit u is shifted to some extent in the left-right direction of the vehicle body, the round bar member 127 can be carried on the two leg portions 188.

Therefore, in a state in which the round bar member 127 is carried by the leg portion 188 and the plate-like member 128 is carried by the horizontal portion 189, even if the scattering unit u is moved to the left and right direction of the vehicle body to some extent, the leg portion can be used. The 188 and the horizontal portion 189 stably support the scattering unit u at at least 3 points. In other words, the dispersing unit u can be slid in the left-right direction of the vehicle body (that is, the direction in which the clutch members 149 and 176 are in contact with or apart from each other) while maintaining the posture of the dispersing unit u.

Thus, for example, in a state where the clutch members 149, 176 are apart from each other, the spreading unit u can be stably temporarily placed on the mounting stay 187. Since the scattering unit u can be temporarily set in this way, the mounting work of the scattering unit u can be easily performed. Then, in the temporarily set state (the state in which the round bar member 127 is fitted in the U-shaped portion 188b), since the spreading unit u can be positioned in the front-rear direction of the vehicle body, the scattering unit u is placed on the mounting stay 187 toward By sliding the vehicle body in the left-right direction, the clutch members 149, 176 can be simply engaged with each other.

In addition, the positioning of the vehicle body in the left-right direction of the scattering unit u can be embedded in the convex portion 189a formed in the horizontal portion 189 by the hole portion 128a formed in the plate-like member 128 (see FIG. 23) (refer to the 21st) Figure). Further, in the vicinity of the attachment stay 187, a fixture 190 is disposed (see Fig. 21). The fixture 190 is configured such that the hook member 127a (see FIG. 22) fixed to the round bar member 127 can be hooked and fixed.

Then, the fixture 190 is configured to be easily switchable by a single key (for example, with one finger): a state in which the hook member 127a is hooked and fixed, and an open state. Therefore, after the positioning unit u is positioned, the fixing unit u can be simply fixed to the mounting stay 187 by hooking the fixing member 190 to the hook member 127a.

As described above, the mounting work of the scattering unit u can be completed as long as it is fixed by the fixture 190. Then, as long as the dispersing unit u is attached to the frame 53, the state in which the clutch members 149 and 176 are engaged with each other (the state in which the drive shaft 148 is connected to the drive transmission mechanism) can be formed. In this way, the installation and removal of the spreading unit u can be easily performed without the need to fix the screw or install the driving mechanism of the drive transmission mechanism or the clutch.

Next, the configuration of the seedling loading table 31a after the removal is described will be described. Fig. 24 is a rear elevational view showing a state in which the loaded seedling stage is placed. As described above, in the present embodiment, the seedling stage 31a of two rows is configured to be detachable from the main seedling table 31. On the other hand, as shown in Fig. 21 and the like, the frame 53 is provided with a temporary setting stay 196 on which the fixed distributing unit u can be placed. Further, as shown in Fig. 18, two temporary staying stays 196 are provided, and are respectively provided at the right and left end portions of the vehicle body close to the frame 53.

When the seedling loading table 31a is separated from the main seedling table 31, first, the two scattering units u of the four scattering units u that are close to the center in the left-right direction of the vehicle body are moved to the temporary setting stays 196 and fixed. Thereby, the space can be vacated at a position close to the center in the left-right direction of the vehicle body. Then, the seedling loading table 31a is separated from the main seedling table 31, and is attached to the support tube 197. Then, as shown in Fig. 24, the seedling loading table 31a attached to the support tube 197 is disposed in a space formed by moving the two scattering units u located at the center to the temporary struts 196.

The separated seedling loading table 31a is placed above the remaining main seedling stage 31 by being attached to the support tube 197. Then, the seedling loading table 31a is a position that overlaps the scattering unit u in a side view. Here, assuming that the scattering unit u cannot be moved to empty the space, it is necessary to arrange the loading table 31a and the scattering unit u in a side view so as not to overlap (to prevent the seedling table 31a from interfering with the scattering unit u) . Therefore, in this case, it is necessary to avoid the dispersing unit u and set the mounting position of the seedling loading table 31a at a high position. Therefore, it is difficult to mount the seedling loading table 31a to the support pipe 197.

In this regard, in the present embodiment, the seedling stage 31a can be attached to a lower position by forming the space by moving the scattering unit u as described above. Moreover, since there is a space in the center of the vehicle body, the dispersing unit u does not cause trouble when the mounting work of the loading table 31a is performed. Then, such a configuration is assumed by the configuration in which the scattering unit u can be easily detached from the frame 53.

As described above, since the scattering unit u can be removed, for example, the medicine remaining inside the scattering funnel 54 can be easily discharged by turning over the dispersing unit u after the removal. Then, since the dispersing funnel 54 and the lead-out portion 55 can be collectively processed and processed, it is not necessary to disassemble the dispersing funnel structure from the lead-out portion as in the conventional drug dispersing device, and the spreader funnel 54 can be improved. The sealing property with the lead-out portion 55. Furthermore, it is also possible to store in advance in each unit in a state where the dispersing unit u is removed.

Further, in the box application agent dispersing device 51 of the present embodiment, the frame 53 is provided with a drive transmission mechanism that transmits the driving force extracted from the rice transplanter 1 to the vicinity of each of the scattering units u, and the scattering unit u is disposed. Mounted to the frame 53, the drive drive shaft 148 and the drive transmission mechanism can be coupled. Thereby, since the derivation drive shaft 148 can be connected to the drive transmission mechanism by attaching the dispersing unit u to the frame 53, the operation of attaching the dispersing unit u to the frame 53 can be easily performed.

Further, in the tank application agent dispersing device 51 of the present embodiment, each of the dispersing units u includes a unit side clutch member 149 fixed to one end of the lead-out drive shaft 148. In the frame 53, a frame side clutch member 176 that outputs a driving force transmitted from a drive transmission mechanism is disposed for each of the scattering units u. By engaging the unit side clutch member 149 with the frame side clutch member 176, the drive shaft 148 and the drive transmission mechanism can be connected. Then, the unit side clutch member 149 is detachable from the frame side clutch member 176.

As described above, by providing the clutch corresponding to each of the spreading units u, the presence or absence of the driving of the lead-out unit 55 can be switched for each of the distributing units u. Then, since the clutch is configured as a snap-on clutch, the dispersing unit u can be detached from the frame 53 at the nip portion of the unit-side clutch member 149 and the frame-side clutch member 176, so that it is not necessary to unload the unit when the unit is detached. The operation of the transfer mechanism is driven down, and the unloading operation can be easily performed.

Further, in the snap-in clutch, since the driving force can be transmitted by bringing the clutch members 149 and 176 into close contact with each other, it is possible to easily realize the configuration in which the drive shaft 148 and the drive transmission mechanism can be connected as long as the dispersing unit u is attached to the frame 53. .

Further, since the spreading unit u is slid by using the mounting stay 187 as a guide, the scattering unit u can be attached or detached, so that the positional alignment of the clutch members 149 and 176 and the like can be easily performed. Then, the dispersing unit u is fixed by the fixing tool 190, whereby the unit-side clutch member 149 can be engaged with the frame-side clutch member 176 (the state in which the drive shaft 148 is connected to the drive transmission mechanism).

Moreover, since the posture of the spreading unit u in the middle of the mounting or the removal is maintained by the attachment of the stay 187, it is not necessary to support by hand in order to prevent the spreading unit u from falling over during the mounting or unloading operation. Further, for example, the spreading unit u may be temporarily placed on the mounting stay 187 before the mounting work. Thereby, the mounting or unloading operation of the spreading unit u can be performed more easily.

Further, in the tank application agent dispersing device 51 of the present embodiment, the unit side clutch member 149 can be displaced in accordance with the operating force of the clutch, and the clutch can be switched. Further, with the boundary between the unit side clutch operating lever 180 and the frame side clutch operating lever 185 as a boundary, the spreading unit u can be separated from the frame 53. Thereby, the unloading operation can be easily performed without the need to remove the mechanism for operating the clutch when the dispersing unit u is removed.

Further, in the rice transplanter 1 of the present embodiment, by temporarily removing the scattering unit u and carrying the temporary stay 196, the space can be vacated in the place where the scattering unit u is present. Then, in the vacant space, the separated seed carrying table 31a can be disposed.

In addition, the seedling table can also be folded and stored as follows. Fig. 25 is a view showing the action of the seedling table of the folding planting portion; Fig. 26 is a view of the arrow A of Fig. 25. As shown in Fig. 25, for example, the seedling stations 31A to 31H are divided into four units in groups. That is, the seedling loading tables 31A and 31B are the first unit, the seedling loading tables 31C and 31D are the second unit, the seedling loading tables 31E and 31F are the third unit, and the seedling loading tables 31G and 31H are the fourth unit.

In addition, the seedling loading tables 31A to 31H are connected by forming a locking lever (locking lever) provided in each of the edge portions. Further, a tubular stand S to be described later is fixed to the left edge portion of the seedling loading table 31E and the right edge portion of the loading table 31F. Further, a pin (projection portion) R fitted to the front end of the holder S is provided on the back surface of the left end portion of the seedling table 31A and the back surface of the right end portion of the seedling table 31B. The pin is further provided with a snap lock before the pin R and the bracket S, and can be locked by the spring lock.

Further, the scattering units 73A to 73D constituting each of the scattering units u are placed on a series of frames 53 and fixed by a spring lock or the like. The frame 53 is supported by a bracket provided from the four planting transmission boxes 37. The frame 53 is provided with a holding portion 53a similar to the above-described stay 196. The holding portion 53a is for temporarily placing the respective scattering units 73A to 73D.

Next, a method of folding the first unit (the seedling stage 31A, 31B) of the seedling loading tables 31A to 31H to narrow the width of the seedling loading table 31 after the end of the transplanting operation will be described. The funnel unit 73C located before the third unit (the seedling table 31E, 31F) is detached from the frame 53 and placed on the holding portion 53a of the frame 53 (below the funnel unit 73D), and then fixed by a spring lock. .

Then, in a state where the seedling loading table 31A is connected to the seedling loading table 31B, the connection between the seedling loading table 31B and the seedling loading table 31C is released. More specifically, the two connecting levers placed at the edge portion of the seedling table 31B are rotated in the direction to be released, and the connection between the seedling loading table 31B and the seedling loading table 31C is released. Next, the handles located at both ends of the first unit (the seedling stages 31A, 31B) are held to move the first unit.

Then, the first unit is superposed on the third unit (the seedling stages 31E and 31F). In detail, two pins R (FIG. 26) placed in the first unit are respectively inserted at the front end of the pair of brackets S provided in the third unit. Next, it is locked by a spring lock (not shown). Then, the front end of the hook-shaped fixing pin which is placed at the left end of the third unit is hooked to the hole formed in the back surface of the first unit. Next, the seedling take-out plate on which the first unit is placed is folded. By doing so, the width of the rice transplanter 1 becomes equal to or less than the width of the traveling body 10. Then, in a state where the traveling vehicle body 10 and the rice transplanter 1 are connected, they are loaded and transported to a truck or the like.

Further, by performing the above-described procedure in reverse, it is possible to expand from the state in which the first unit is folded. Therefore, the detailed description thereof will be omitted.

Next, the seedling loading table 31 is provided with a straw board 60 throughout the entire width direction of the seedling loading table 31. Figure 27 is a side view of the planting part with the grass board; Figure 28 is a side view of the planting part with another branching board. The grass board 60 is formed of a metal plate (flat plate) having a rectangular shape and a certain thickness as shown in Fig. 27 (a) and (b) in detail (the grass board 60 is not limited to the metal plate, Can also be plastic plates, etc.). Both ends of the blade 60 are fixed to the upper end of the bracket 61 fixed to the outer edge portion 31E of the loading table 31 by a pin 62 or the like.

Further, the grass dividing board 60 is preferably disposed in the longitudinal direction D of the seedling S placed on the seedling loading table 31 at an angle α (in other words, inclined at an angle α on the opposite side to the moving direction of the seedling S) . The angle α is obtained by dividing the seedling root of the seedling S by the grass board 60, and is easy to supply the medicine P to the seedling root of the seedling S, preferably 30 to 60 degrees.

Further, the width W of the grass dividing board 60 is preferably set as appropriate depending on the difference in height of the plurality of seedlings S placed on the seedling loading table 31. For example, considering the difference between the long seedlings and the usual seedlings, the grass board 60 of W=50 mm is set. According to this configuration, even if the seedlings having different growth conditions are mixed, the grass board 60 can be surely abutted against the upper part of the seedling S, and the seedling root of the seedling S can be opened, and the medicine can be supplied to the seedling S. Miao root.

Next, the operation of spreading the medicine to the seedling by the rice transplanter thus constructed will be described. The seedlings S placed on the seedling loading table 31 are conveyed to the lower side by the conveyance belt B, and when the weighing board 60 is abutted, the upper part is warped rearward in the conveyance direction, and a space is formed in the root portion. Through this space, the medicine P can be supplied from the respective spreading units u to the seedling root of the seedling S.

Then, the warped seedling S returns to the original standing state when its front end portion is away from the lower end of the straw board 60. In this way, the seedlings S on the seedling table 31 can be transported to the lower side one by one, and the seedlings which abut the grass board 60 are warped in order, and a space is formed in the seedling root. Then, the medicament P can be supplied to its seedling root.

Fig. 28 (a) and (b) show other examples of the present invention. In this example, two branch grasses 80A and 80B are provided in parallel at a certain interval L in place of one of the grass boards as in the previous example (the grass sticks are not limited to two, and may be three or more). Further, the interval L between the two branch grass bars 80A and 80B is set to be about L=50 mm. By replacing the grass board 60 with the grass sticks 80A, 80B, it is possible to provide the same implanted portion with light weight.

In this example, both ends of the weeding bars 80A and 80B are fixed to the bracket 81 fixed to the outer edge portion 31E of the seedling table 31 by welding or the like. In addition, the operation of spreading the medicine P to the seedling S is the same as that of the above-described example, and the description thereof is omitted.

30. . . Planting department

31. . . Seedling table

37. . . Plug-in electric box

51. . . Box application agent dispersing device

53. . . frame

54. . . Scatter funnel

55. . . Export department

56. . . Transport department

150. . . Drive transmission shaft

152. . . Implantation drive shaft

153. . . First clutch member

154. . . Second clutch member

172. . . First drive transmission shaft

173. . . First drive transmission gear

174. . . Second drive transmission gear

175. . . Second drive transmission shaft

176. . . Frame side clutch member

178. . . Unit clutch

191. . . Linkage mechanism (linkage)

170‧‧‧One-way clutch mechanism

192‧‧‧Drive Force Distribution Agency

‧‧‧‧ 安角角

u, uL, uR‧‧‧ distribution unit

Fig. 1 is an overall side view of a rice transplanter as an example of the present invention.

Figure 2 is a plan view of the rice transplanter.

Fig. 3 is a rear view of the seedling table provided with the box application agent dispersing device.

Figure 4 is an enlarged perspective view of a spreading unit containing a diffuser funnel.

Figure 5 is a cross-sectional rear view showing the bottom of one end of the funnel in the diffuser.

Figure 6 is a cross-sectional rear elevational view showing the bottom of one end of the funnel funnel showing an extension of the bellows structure.

Figure 7 is a model diagram showing the expansion and contraction of the spreader funnel.

Figure 8 is an enlarged rear view of the diffuser funnel.

Fig. 9 is a perspective view of a diffuser funnel having a grip portion on the surface of the diffuser funnel.

Fig. 10 is a perspective view of a diffuser funnel provided with a nip portion on a side surface of the diffuser funnel.

Fig. 11 is a structural view showing a conveying portion including a position changing means including an elastic pin and a positioning hole.

Fig. 12 is an explanatory view showing a change in the nozzle setting position.

Fig. 13 is a side view of a conveying portion including a position changing means including a projection and a positioning groove.

Fig. 14 is a side view of a conveying portion including a position changing means formed of an elastic member.

Figure 15 is a plan sectional view showing the inside of the planting box.

Figure 16 is a side view of the model of the planting box.

Figure 17 is a side cross-sectional view of the spreading unit.

Figure 18 is a model diagram of the drive transmission mechanism.

Fig. 19 is a perspective view showing the drive transmission mechanism.

Fig. 20 is a perspective view showing the configuration of the vicinity of the clutch of the amplifying unit.

Fig. 21 is a perspective view showing the support frame in a state after the dispersing unit is removed.

Figure 22 is a perspective view of the spreading unit.

Figure 23 is a perspective view of the spreading unit as seen from a different angle from Figure 22.

Fig. 24 is a rear elevational view showing a state in which the loaded seedling stage is placed.

Fig. 25 is a schematic view showing the action of the seedling table of the folding planting portion.

Figure 26 is an arrow view of Figure 25A.

Fig. 27 (a) and (b) are side views of the planting portion having the grass dividing board.

Fig. 28 (a) and (b) are side views of a planting portion having another branching board.

30. . . Planting department

31. . . Seedling table

32. . . Planting claw

51. . . Box application agent dispersing device

52. . . Seedling pad placement

53. . . frame

53’. . . frame

54. . . Scatter funnel

55. . . Export department

56. . . Transport department

58. . . Grip

u. . . Dispersion unit

Claims (10)

A spreading device for a rice transplanter is a spreading unit composed of: a frame which is located behind the seedling table and is placed at the planting portion; and a diffuser funnel which is fixed to the frame; and a hose And the nozzle is disposed at each of the rows of the lower portion of the loading platform; and the nozzle is attached to the front end of the hose, and the agent of the scattering funnel is dispersed through the nozzle. The bed soil of the seedling mat on the seedling stage is characterized in that: the plurality of scattering funnels are arranged, and two rows of the seedling mats of the seedling table can be applied by one of the scattering funnels. In the above-described frame, a drive transmission mechanism is provided, and the drive transmission mechanism includes a drive transmission shaft that transmits a driving force from the planting portion to a drive shaft of the lead-out portion, and the drive shaft is operative from the drive The transmission shaft is detachably constructed. The dispersing device of the rice transplanter according to the first aspect of the invention, wherein the diffuser funnel has two lead-out portions corresponding to two rows of the seedling mat and the hose or the corresponding seedling One of the above-described lead-out portions and the aforementioned hose of one row of the mat. The spreading device of the rice transplanter according to the first aspect of the invention, wherein the shape of the diffuser funnel is at the bottom of the diffuser funnel, and the left and right end portions are at a rest angle or more from the central portion toward the lower side. Angle tilt setting. The dispersing device of the rice transplanter according to the first aspect of the invention, wherein the nozzle is provided in the vicinity of the left and right end portions of the scattering funnel, and the seedling mat is provided between the scattering funnels. The gap between the seedlings and the bottom of the left and right ends of the diffuser funnel are provided. The dispersing device of the rice transplanter according to the first aspect of the invention, wherein the nozzle includes: a position changing means for changing a width between rows of the seedling mats, and changing a left-right direction of the seedling table position. The spreading device of the rice transplanter according to the first aspect of the invention, wherein the spreading device is disposed above the planting portion of the rice transplanter, and the drive transmission mechanism is a link portion and a one-way clutch mechanism. And a driving force distribution mechanism. The dispersing device of the rice transplanter according to the first or sixth aspect of the present invention, wherein each of the spreading means is provided with a unit clutch, and the link portion transmits a driving force from the rice transplanter to the driving a force distribution mechanism that distributes a driving force input from the link portion to each of the unit clutches, and each of the unit clutches is capable of facing the drive shaft provided in the corresponding dispersion unit The connection and disconnection with the aforementioned driving force distribution mechanism are switched. The dispersing device of the rice transplanter according to the seventh aspect of the invention, wherein the unit clutch is provided in the rice transplanter Provided in each of the plurality of planting boxes, the dispersing device of the rice transplanter includes a clutch interlocking mechanism capable of causing a row of planting stop clutches provided in each of the planting boxes and corresponding to the planting box The aforementioned unit clutch of the position is interlocked. The dispersing device of the rice transplanter according to the first aspect of the invention, wherein the dispersing unit retains the aggregate state in which the diffuser funnel, the lead-out portion, and the drive shaft are integrated, and is detachable from the frame under. The spreader of the rice transplanter according to the first or sixth aspect of the invention, wherein the drive transmission mechanism is disposed in the frame, and the drive shaft is connectable by attaching the scattering unit to the frame And the aforementioned drive transmission mechanism.