JP2015112072A - Rice planting machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rice planting machine in which a plurality of granular material supply devices are included, and weight is reduced when the entire of a seedling planting device for supplying a plurality of types of granular materials to a common grooving unit is lifted and lowered from the side of a self-propelled vehicle body.SOLUTION: A rice planting machine includes a first granular material supply device disposed in the front side of a seedling platform 20, a second granular material supply device disposed in the rear side of the seedling platform 20, and granular material planting means 34 for supplying granular materials so that the supply position of the granular materials supplied from the first and second granular material supply devices to the paddy becomes a depth position capable of avoiding the exposure to a mud surface. The rice planting machine further includes a merging conveyance path 35 where the granular materials conveyed by a first conveyance path 33 for conveying the granular materials from the first granular material supply device and a second conveyance path 43 for conveying the granular materials from the second granular material supply device merges together. The granular materials are supplied from the merging conveyance path 35 to the common granular material planting means 34.

Description

  The present invention provides a powder supply device capable of accommodating a plurality of types of powder particles in addition to a seedling table and capable of being separately fed and supplied, and powder supplied from those powder supply devices The present invention relates to a rice transplanter provided with a granular material embedding means for supplying a granular material with respect to a rice field at a depth position where exposure to the mud surface can be avoided.

A plurality of types of granular materials as described above can be accommodated separately and can be fed out separately and supplied, and the supply position of the granular material supplied from those granular material supply devices with respect to the rice field However, as a rice transplanter provided with a granular material embedding means to be supplied at a depth position where exposure to the mud surface can be avoided, the rice transplanter has the structure described in [1] or [2] below There is.
[1] A plurality of powder supply devices that can accommodate a plurality of types of powder particles and that can be fed out separately are arranged on the rear side of the seedling platform in the seedling planting device, It is configured to drop and supply the granular material to the individual groovers provided for each of the granular material supply devices (see Patent Document 1).
[2] A plurality of powder supply devices that can accommodate a plurality of types of powder particles and that can be separately fed out are provided on the rear side of the seedling platform in the seedling planting device, The granular material fed out from the granular material supply device is supplied to the funnel part of the other granular material supply device and supplied to the common groover through the common fertilizer flow path. Thing (refer patent document 2).

Japanese Patent No. 2548456 (see paragraph numbers “0011” and “0012”, FIG. 1) Japanese Patent No. 2613700 (see paragraph numbers “0010” and “0011”, FIG. 1 and FIG. 2)

In the prior art described in the above [1], since the granular material fed from each granular material supply device is dropped and supplied to an individual grooving device, many grooving devices are used in the field. There is room for improvement in that a lot of irregularities remain in the field scene.
Moreover, in the conventional technique described in [2] above, since a plurality of types of powders fed separately from a plurality of powder supply devices are supplied to a common groover, they are formed in a field. This is advantageous in that it can reduce the passage trace of the grooved device. However, also in this structure, since all of the plurality of powder and granular material supply devices are arranged on the rear side of the seedling setting table, the weight on the rear side of the seedling planting device tends to increase. For this reason, there exists a tendency for the weight at the time of raising / lowering the whole seedling planting apparatus including the several granular material supply apparatus from the self-propelled vehicle body side to become large, and there exists room for improvement in this point.

  The present invention is provided with a plurality of powder supply devices, and the whole seedling planting device configured to supply a plurality of types of powder particles to a common groover is moved up and down from the self-propelled vehicle body side. It is intended to reduce the weight when it is used.

  The technical means of the rice transplanter in the present invention taken to achieve the above object has structural features and operational effects in the following points.

[Solution 1]
The technical means of the present invention taken in order to solve the above-mentioned problem is that a seedling planting device provided with a seedling platform is deployed at the rear part of the self-propelled vehicle body and is deployed on the front side of the seedling platform. The first granular material supply device, the second granular material supply device deployed on the rear side of the seedling platform, and the surface of the granular material supplied from the first and second granular material supply devices And a granular material embedding unit that supplies the supply position so as to be at a depth position where exposure to the mud surface can be avoided, and conveys the granular material supplied from the first granular material supply device. Between the first transport path, the second transport path for transporting the powder supplied from the second powder supply apparatus, and the powder transported by the first transport path and the second transport path And a merging conveyance path for merging, and the granular material is supplied from the merging conveyance path to the common granular material embedding means. It is that they are.

[Operation and effect of invention according to Solution 1]
According to the invention relating to the above solution 1, the first granular material supply device among the plurality of types of granular material supply devices is arranged on the front side of the seedling platform, and the second granular material supply device is the seedling platform. It is deployed on the back side. For this reason, when raising and lowering the seedling planting device from the self-propelled vehicle body side, compared to the structure of the structure in which all of the plurality of types of granular material supply devices are arranged on the rear side farther than the seedling bed, Since the first granular material supply device is arranged on the front side of the seedling platform, the weight when raising and lowering the seedling planting device including a plurality of types of granular material supply devices is reduced.
Therefore, there is an advantage that the weight balance in the front-rear direction in the entire body including the self-propelled vehicle body and the seedling planting device is less likely to be biased toward the rear, and the front-rear balance of the body is improved.

[Solution 2]
The other technical means of the present invention taken to solve the above-described problem is that the first transport path and the second transport path are connected to the merging transport path at a lower position of the seedling platform. That is.

[Operation and effect of invention according to Solution 2]
According to the invention relating to the above solution 2, the first conveying path for conveying the granular material supplied from the first granular material supplying device and the granular material supplied from the second granular material supplying device are conveyed. The merged conveyance path where the second conveyance path is joined is a lower position of the seedling bed.
Therefore, there is no possibility that the lateral movement of the seedling platform is hindered by the presence of the first transport path, the second transport path, or the merge transport path. Also, since it is a merge at the lower position of the seedling platform where the distance from the mud surface is extremely short, for example, when mixing a long distance after the merge, the mixing ratio of the powder after the merge This is advantageous in that there is little possibility that the surface will change until it reaches the mud surface.

[Solution 3]
Another technical means of the present invention taken in order to solve the above problem is that the granular material embedding means is equipped on a leveling float arranged below the seedling platform. is there.

[Operation and effect of invention according to Solution 3]
According to the invention relating to the solving means 3 described above, the granular material embedding means is provided in the leveling float arranged below the seedling platform. Therefore, even if the leveling float moves up and down somewhat to follow the unevenness of the mud surface, the powder embedding means moves up and down with respect to the mud surface together with the leveling float, so that the powder embedding in the mud surface There is an advantage that the function of the means can be maintained in a stable state.

[Solution 4]
The other technical means of the present invention taken in order to solve the above-mentioned problem is that the granular material embedding means is connected to a groove forming portion for forming a groove for embedding in the mud and an upper portion of the groove forming portion. The accordion conveyance path is constituted by the accordion tubular portion.

[Operations and effects of invention according to Solution 4]
According to the invention relating to the solving means 4 described above, the merging conveyance path is constituted by the bellows-shaped tubular portion formed in a bellows shape so as to allow vertical movement of the groove forming portion. The bellows-shaped tubular portion tends to be formed wider than the first conveyance path and the second conveyance path in accordance with the size of the groove forming portion whose inner diameter is wide in the front-rear direction.
Therefore, there is an advantage that a wide confluence conveyance path can be provided by effectively utilizing the bellows tubular portion that inevitably tends to be formed wide.

[Solution 5]
According to another technical means of the present invention taken to solve the above-mentioned problem, the first powder and granular material supply device is provided with a blower for supplying conveyance air to the first conveyance path, and the first conveyance The road is arranged so that the flow direction of the conveyance wind in the vicinity of the connection point with the merging conveyance path is downward, and the second conveyance path is also arranged so that the vicinity of the connection point with the merging conveyance path is downward. It is that.

[Operation and effect of invention according to Solution 5]
According to the invention relating to the solving means 5 described above, the blower device for supplying the conveyance air to the first conveyance path is provided, and in the first conveyance path or the second conveyance path, in the vicinity of the connection point with the merged conveyance path. It is arranged so that the flow direction of the conveying air is downward. Therefore, the conveying air supplied to the first conveying path conveys the powder particles on the conveying air in the first conveying path, and is similarly downward in the vicinity of the connection point with the merging conveying path. The suction action in the pulling-out direction is given to the powder and granular material transported by. As a result, there is an advantage that it is easy to avoid occurrence of clogging of the granular material in each of the first and second transport paths.

[Solution 6]
Another technical means of the present invention taken in order to solve the above-mentioned problem is that the first granular material supply device is mounted on a self-propelled vehicle body that supports the seedling planting device so as to be movable up and down. .

[Operations and Effects of Invention According to Solution 6]
According to the invention relating to the solving means 6 described above, since the first granular material supply device is mounted on the self-propelled vehicle body, the weight thereof is not added to the weight when the seedling planting device is moved up and down. . Therefore, there exists an advantage which can attain size reduction of the raising / lowering operation apparatus for raising / lowering the seedling planting apparatus including a granular material supply apparatus.

[Solution 7]
Another technical means of the present invention taken in order to solve the above problem is that the first powder supply device is configured with a larger capacity than the second powder supply device. is there.

[Operation and effect of invention according to Solution 7]
According to the invention relating to the above solution 7, the first plant supply device having a large capacity is mounted on the self-propelled vehicle body, thereby further raising and lowering the seedling planting device including the powder supply device. This is advantageous in that it is easy to miniaturize the lifting and lowering operation device.

It is a side view which shows the whole rice transplanter. It is a top view which shows the rear part of a rice transplanter. It is a side view which shows a chemical | medical agent supply apparatus and a granular material embedding means. It is a rear view which shows a chemical | medical agent supply apparatus part. It is a top view which shows the float part for leveling. It is sectional drawing which shows the confluence | merging location vicinity of a granular material.

Hereinafter, an example of an embodiment of a rice transplanter in the present invention will be described based on the drawings.
[Overall structure of rice transplanter]
FIG. 1 is a side view showing the whole rice transplanter according to the present invention. As shown in FIG. 1, the rice transplanter according to the present invention includes a self-propelled vehicle body 1 in which a front portion of a body frame 10 is supported by a pair of left and right front wheels 11F and a rear portion is supported by a pair of left and right rear wheels 11R. Yes. A seedling planting apparatus 2 is supported at the rear of the self-propelled vehicle body 1 via a link mechanism 12 so that the vertical position can be changed, thereby forming a riding type rice transplanter.

A driving part 13 having an engine (not shown) is provided at the front part of the self-propelled vehicle body 1, and a steering part provided with a steering handle 14 and a driver seat 15 are provided on the rear side of the driving part 13, A fertilizer application device 3 (corresponding to a first granular material supply device) as a granular material supply device is disposed behind the driver seat 15.
Spare seedling raising stands 16 are arranged at laterally separated positions on both the left and right sides of the driving unit 13, and the seedlings mounted on the spare seedling raising stand 16 are taken out, and seedling planting behind the self-propelled vehicle body 1 is taken out. It is comprised so that seedling replenishment can be carried out to the seedling stand 20 of the attaching apparatus 2. FIG. The link mechanism 12 is configured to swing up and down in accordance with the expansion and contraction operation of a hydraulic cylinder 17 provided at the rear of the machine body.
In the seedling planting device 2, when the link mechanism 12 is swung up and down with respect to the vehicle body frame 10 by the hydraulic cylinder 17, the leveling float 27 comes into contact with the field mud, and the leveling float 27 Is raised and lowered to a non-working state in which it is raised from the field mud.
On the rear side of the seedling planting device 2, a drug application device 4 (corresponding to a second powder material supply device) as a powder material supply device different from the fertilizer application device 3 is disposed.

[Seedling planting equipment]
As shown in FIGS. 1 and 3, the seedling planting device 2 has a feed case 21 supported at the rear end portion of the link mechanism 12, and is provided on the rear surface side of the horizontal frame 22 that extends laterally from the feed case 21. The transmission case 23 is extended rearward in a cantilever manner. A seedling base 20 is supported on the upper part of the transmission case 23.
A known lateral feed shaft (not shown) is extended from the feed case 21 in the lateral direction, the lateral feed shaft and the seedling platform 20 are linked together, and the seedling platform 20 is rotated along with the rotational drive of the lateral feed shaft. It is configured to reciprocate in the horizontal direction. A planting case 24 is rotatably supported at the rear part of the transmission case 23, and a pair of planting arms 25 (corresponding to a seedling planting mechanism) provided with planting claws 25a are supported on the planting case 24. Yes.

As shown in FIG. 2, the seedling table 20 is provided with seedling placement portions 20a that are partitioned into four portions by wall-shaped partitioning portions 20b so as to place one row of mat-like seedlings. Is configured for four-row planting. The seedling placement portion 20a includes a seedling placing surface 2A formed on an inclined surface that extends from the front upper side to the rear lower side. Each of the partitioned seedling placement units 20a is provided with a pair of left and right belt-driven seedling vertical feeding devices 26.
This seedling vertical feeding device 26, when the seedling placing base 20 reaches the stroke end of the reciprocating lateral feed driving, the seedling placed on the seedling placement unit 20a is a predetermined amount toward the seedling takeout port 20c at the lower end. It is of a known structure that is configured to drive the vertical feed belt 26a to feed the seedlings so as to be fed.

As shown in FIGS. 3 to 5, a leveling float 27 is disposed at the lower part of the seedling planting device 2.
The leveling float 27 includes a center float 27C located below the feed case 21, and side floats 27R and 27L located on the right and left lateral outer sides of the center float 27C at a predetermined interval. . In the leveling float 27, leveling portions 27Ca and 27Ca are formed on both left and right sides of the center float 27C at positions laterally outward from the center line CL in the left and right direction, and the side floats 27R and 27L in the left and right direction are formed. Leveling portions 27Ra and 27La are formed at the center.

And the right and left as the granular material embedding means of the granular material supply apparatus which will be described later is provided at a location closer to the center side than the location where the leveling portions 27Ca and 27Ca are formed on the left and right side portions of the center float 27C. A pair of groovers 34 and 34 (corresponding to the grooving portion) are provided, and the same groove groovers 34 are also provided on the laterally outer side of the side floats 27R and 27L where the leveling portions 27Ra and 27La exist. 34 is provided.
On the rear side of each of these grooves 34, 34, a covering body 28 for backfilling the muddy surface forming grooves formed by each of the grooves 34, 34 is attached. It is equipped in each leveling float 27 on the rear side of the place. When each of the soil coverings 28 forms a groove on the mud surface, the mud soil is pushed to the left and right by the groove creating device 34 and rises to the left and right sides of the groove. It is attached so that the mud is pushed back into the groove formed on the mud surface.

With the above structure, the lateral feed shaft is rotationally driven, the seedling platform 20 is driven to reciprocate laterally in the lateral direction, the planting case 24 is rotationally driven, and the planting arm 25 is placed on the seedling platform 20 for seedling placement. The seedling is taken out from the seedling outlet 20c at the lower part of the portion 20a and planted on the rice field. Then, when the seedling stage 20 reaches the stroke end of the reciprocating lateral feed drive, the seedlings of the seedling placement part 20a of the seedling stage 20 are vertically fed downward by a predetermined amount by the seedling vertical feeding device 26, and again the seedling takeout port The seedling from 20c can be taken out.
The groove formed on the mud surface by the groove producing device 34 is located at a position slightly shifted to the lateral side of the seedling planting site by the planting arm 25.

[Powder supply device]
As shown in FIGS. 1 and 2, the powder and granular material supply device includes a fertilizer application device 3 (corresponding to a first granular material supply device) provided with a fertilizer tank 30 for storing fertilizer on the rear side of the driver seat 15. The seedling planting apparatus 2 includes a medicine application device 4 (corresponding to a second granular material supply device) provided with a medicine tank 40 on the rear side of the seedling bed 20.

[Fertilizer]
The fertilizer applicator 3 includes a single fertilizer tank 30 formed in a shape that is long in the lateral direction of the vehicle body so as to store fertilizer that is a granular material, and is positioned below the fertilizer tank 30. And two feeding mechanisms 31 for feeding out the fertilizer therein by a predetermined amount. Further, a blower 32 for carrying the fed fertilizer on the carrying wind and carrying it by wind, and four supply hoses 33 (corresponding to the first carrying path) for guiding the fed granular material to the supply target location. And four groove forming devices 34 for supplying the supplied granular material to the grooves formed on the mud surface, and a bellows pipe 35 (joining conveyance path) connecting the supply hoses 33 and the groove forming devices 34. Equivalent to).

The fertilizer tank 30 and the feeding mechanism 31 are fixed on a support base (not shown) provided in the self-propelled vehicle body 1 on the rear side of the driver seat 15. A blower duct 32 </ b> A of the blower 32 is provided so as to be connected to the powder body feed-out place on the lower front side of the feed-out mechanism 31.
Two supply hoses 33 are connected to the rear side of each feeding mechanism 31, and the powder particles fed from the feeding mechanism 31 are placed on the wind generated by the blower 32, and are supplied to each supply hose. It is comprised so that it may convey with wind power from 33 toward each groove production machine 34. FIG.
The intake duct 32B of the blower 32 extends in the vicinity of the engine E, and sucks the air whose temperature has increased due to heat dissipation of the engine E to generate a conveying wind. The blower 32 is configured to be driven by an electric motor 32C.

The feeding mechanism 31 is configured such that a feeding drive shaft (not shown) for driving a known feeding roll (not shown) is intermittently operated by a reciprocating swing operation within a predetermined angle range of the swing arm 36. It is configured to pay out. That is, by rotating the swing arm 36 in a predetermined direction by a reciprocating swing operation within a predetermined angle range of the swing arm 36, the fertilizer in the fertilizer tank 30 is fed out by a predetermined amount by rotating the feed roll in a fixed direction. It is configured to supply.
The reciprocating rocking motion of the rocking arm 36 is performed as follows. As shown in FIG. 1, a fertilizer output shaft 37 that interlocks with a transmission shaft (not shown) that transmits engine power to a power take-off shaft 18 that transmits to the seedling planting device 2 from the self-running vehicle body 1 side is self-running. It protrudes from the side of the vehicle body 1. One end side of the linkage rod 38 is connected to the rotary arm 37 a provided in the fertilization output shaft 37, and the rotational motion of the fertilization output shaft 37 is converted into a reciprocating motion in the longitudinal direction of the linkage rod 38. The other end side of the linkage rod 38 is connected to the swing arm 36, and the swing arm 36 is reciprocally swung within a predetermined angle range as the fertilization output shaft 37 rotates.
Therefore, the feeding mechanism 31 of the fertilizer application device 3 supplies fertilizer to the grooving device 34 during the seedling planting operation by the seedling planting device 2, and when the seedling planting operation by the seedling planting device 2 is stopped, The feeding of fertilizer by the feeding mechanism 31 of the fertilizer applicator 3 is also stopped.

[Medicine device]
The drug application device 4 supplies a granular material such as a pest control drug, which is a different type of powder from the fertilizer supplied by the fertilizer application device 3, and includes a pair of left and right drug tanks 40 and each drug tank. 40 is provided with four drug delivery parts 41 provided on the lower side of 40, and four drug supply cylinders 43 (corresponding to the second transport path) extending downward from the lower part of the drug delivery part 41.
As shown in FIGS. 4 and 6, the prescription device 4 has a horizontally long horizontal support 47 through a support rod 46 attached to a bracket 45 bolted to the upper side of the transmission case 23 of the seedling planting device 2. Each medicine delivery part 41 is fixed to the rear side of the seedling bed 20 by being fixed.

As shown in FIGS. 3 and 4, in the medicine delivery portion 41, a delivery drive shaft 42 that drives a known delivery roll (not shown) is rotated by a predetermined angle as the planting case 24 rotates. It is constituted as follows.
A swing arm 42a is provided between the feed drive shaft 42 and a feed drive shaft 42 via a one-way rotation mechanism (not shown), and the feed drive shaft 42 moves in accordance with the reciprocating swing of the swing arm 42a. 42 is configured to be rotationally driven in a fixed direction. The swing arm 42 a is linked to the planting case 24 via the drive mechanism 44.

The drive mechanism 44 is configured as follows. That is, a power take-out body 44a attached so as to rotate integrally with the planting case 24 with the planting arm 25 sandwiched between the planting case 24, the power take-out body 44a and the swing arm 42a. And a connecting rod 44b for connecting the two.
One end side of the linkage rod 44b is connected via a ball joint at a position slightly away from the center of rotation of the power take-out body 44a, and the other end side is bent into a key shape and is sandwiched between connecting portions of the swing arm 42a. Are connected together. The connecting position of the linkage rod 44b on the swing arm 42a side can be changed in the near-to-far direction with respect to the axial center of the feeding drive shaft 42. Accordingly, when the connecting position is brought close to the axial center of the feeding drive shaft 42, the swing angle range of the feeding drive shaft 42 per rotation of the planting case 24 is increased, and conversely, the connecting position is changed to the axis of the feeding drive shaft 42. When it is away from the center, the swing angle range of the feed drive shaft 42 per rotation of the planting case 24 becomes small. Thereby, the rotation angle of the feeding roll per rotation of the planting case 24 can be changed to change the feeding amount of the granular material.

The medicine supply cylinder 43 includes an upper cylinder 43a made of a hard pipe connected to the medicine supply part 41, and a lower cylinder 43b made of a soft flexible hose connected to the lower end side of the upper cylinder 43a. As shown in FIGS. 3 and 6, the lower end side of the lower cylinder 43 b is below the seedling platform 20, and above the bellows pipe 35 that connects each supply hose 33 and each groover 34 of the fertilizer application device 3. Connected together in communication.
In the upper portion of the bellows tube 35, the supply hoses 33 and the lower cylinder 43b are connected in a state of being almost downward, and the direction of the conveying air flowing through the supply hoses 33 is also downward.
Further, since each supply hose 33 and the lower cylinder 43b are also constituted by a soft flexible hose, the leveling float 27 swings up and down around the swing fulcrum on the rear end side, thereby forming a groove. When the vertical position of the vessel 34 is changed, both the supply hose 33 and the lower cylinder 43b bend and change due to their own flexibility.

The bellows tube 35 constitutes a merged conveyance path in which the lower end portion of the supply hose 33 corresponding to the merged conveyance path and the lower end portion of the lower cylinder 43b are connected to each other. And a bellows-like outer tube 35B located in the position.
An inner diameter D3 of the inner tube 35A is formed to be larger than an inner diameter D1 of the lower end portion of the supply hose 33 and an inner diameter D2 of the lower end portion of the lower cylinder 43b, and the outer tube 35B is a cone whose diameter increases toward the lower side. It is composed of a bellows.

[Other Embodiment 1]
In embodiment, although the thing of the structure which made the connection location of each supply hose 33 of the fertilizer 3 and the lower end side of the lower cylinder 43b the position corresponded to the lower side of the seedling bed 20 was illustrated, it does not restrict to this. It is not something that can be done. For example, although not shown, the partition 20b of the seedling platform 20 is provided in a state where the supply hose 33 of the fertilizer application 3 penetrates or the lower cylinder 43b of the medicine application device 4 penetrates, and the front side of the seedling platform 20 or It may be connected so as to merge at the rear side.
In this case, the lateral movement of the penetrating part accompanying the lateral movement of the seedling platform 20 has a function capable of lateral movement to the supply hose 33 and the lower cylinder 43b so as to be allowed by the flexibility of the supply hose 33 and the lower cylinder 43b. It is good to have it.
Other configurations may be the same as those in the above-described embodiment.

[Second embodiment]
Although the thing of the structure which mounted the fertilizer tank 30 of the fertilizer applicator 3 in the self-propelled vehicle body 1 was illustrated in embodiment, it is not restricted to this. For example, although not shown, the fertilizer tank 30 may be mounted on the seedling planting device 2 or the link mechanism 12 on the front side of the seedling platform 20.
Further, instead of the fertilizer tank 30 of the fertilizer application device 3, the chemical tank 40 of the drug application device 4 is mounted on the self-propelled vehicle body 1 on the front side of the seedling platform 20, or mounted on the seedling planting device 2 or the link mechanism 12. May be.
Other configurations may be the same as those in the above-described embodiment.

[3 of another embodiment]
In the embodiment, the grooving device 34 as the granular material embedding means is illustrated as having a structure in which the grading float 27 is attached. However, the present invention is not limited to this. For example, the grooving device 34 may be attached to the horizontal frame 22 that is a fixing portion of the seedling planting device 2 or the transmission case 23.
Other configurations may be the same as those in the above-described embodiment.

[4 of another embodiment]
In the embodiment, the grooving device 34 as the granular material embedding means and the bellows tube 35 as the merging and conveying path are illustrated in a state of being configured in a vertically divided state. It is not limited to.
For example, the groove forming device 34 may be arranged in a state where the bellows tube 35 serving as a confluence conveyance path enters the groove forming device 34 so that the groove forming device 34 and the bellows tube 35 overlap in the vertical direction. In this case, the grooving device 34 and the bellows tube 35 are not only a granular material embedding means but also a function as a confluence conveyance path.
Other configurations may be the same as those in the above-described embodiment.

[5 of another embodiment]
In embodiment, although the example using the fertilizer and the chemical | medical agent for pest control was shown as multiple types of granular material embedded by the common granular material embedding means, it is not restricted to this. For example, instead of a fertilizer, a drug and another type of drug may be used as a plurality of types of granules, or a fertilizer and another type of fertilizer may be used as a plurality of types of granules. Absent.
Other configurations may be the same as those in the above-described embodiment.

  The present invention can be applied to a rice transplanter provided with five or more seedling planting devices 2 in addition to a rice transplanter equipped with a four-row seedling planting device 2, or a two- or three-row rice transplanter. Is available.

DESCRIPTION OF SYMBOLS 1 Self-propelled vehicle body 2 Seedling planting apparatus 3 Fertilizer application apparatus (1st granular material supply apparatus)
4 Drug application device (second powder supply device)
20 Seedling stage 27 Float for leveling 30 Fertilizer tank 31 Feeding mechanism 32 Blower device 33 Supply hose (first transport path)
34 Grooving machine (medicine placement means)
35 Bellows tube (conveyance path)
40 Drug tank 41 Drug delivery unit 43 Drug supply tube (second transport path)

Claims (7)

A seedling planting device equipped with a seedling stand is deployed at the rear of the self-propelled vehicle body,
A first granular material supply device deployed on the front side of the seedling platform;
A second granular material supply device deployed on the rear side of the seedling platform;
The granular material embedding means for supplying the granular material supplied from the first and second granular material supply devices so that the supply position with respect to the paddy surface is a depth position where exposure to the mud surface can be avoided. With
A first conveying path for conveying the granular material supplied from the first granular material supply device;
A second conveyance path for conveying the granular material supplied from the second granular material supply device;
A merging conveyance path in which powder particles conveyed in the first conveyance path and the second conveyance path merge with each other;
A rice transplanter configured to supply powder particles to the common particle embedding means from the merging conveyance path.   The rice transplanter according to claim 1, wherein the first conveyance path and the second conveyance path are connected to the merging conveyance path at a lower position of the seedling platform.   The rice transplanter according to claim 1 or 2, wherein the granular material embedding means is equipped on a leveling float arranged below the seedling platform.   The granular material embedding means includes a groove forming portion for forming a groove for embedding in mud, and a bellows tubular portion connected to an upper portion of the groove forming portion, and the confluence conveyance path is formed by the bellows tubular portion. The rice transplanter as described in any one of Claims 1-3 by which is comprised. The first powder and granular material supply device is provided with a blower that supplies conveyance air to the first conveyance path,
The first conveyance path is arranged so that the flow direction of the conveyance wind in the vicinity of the connection point with the merging conveyance path is downward, and the vicinity of the connection point with the merging conveyance path is also downward in the second conveyance path. The rice transplanter as described in any one of Claims 1-4 currently deployed.   The said 1st granular material supply apparatus is a rice transplanter as described in any one of Claims 1-5 mounted in the self-propelled vehicle body which supports the said seedling planting apparatus so that raising / lowering is possible.   The rice transplanter according to claim 6, wherein the first granular material supply device is configured with a larger capacity than the second granular material supply device.

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