JP2011072243A - Paddy working apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a paddy working apparatus hardly collecting straw wastes or the like on a soil covering plate, and advantageous even to assembling and cost. <P>SOLUTION: The paddy working apparatus includes: a furrower 23 for supplying granules while forming a ditch on the paddy surface; and the soil covering plate 39 for backfilling the ditch formed by the furrower 23. In the paddy working apparatus, the soil covering plate 39 is mounted on the furrower 23 so as to locate just at the rear of the furrower 23. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a paddy field work apparatus including a grooving device that supplies a granular material while forming a groove on a rice field, and a covering board that backfills the groove formed by the grooving device.

  In paddy field work devices such as conventional fertilizer and direct seeding devices, the grooving device and the cover plate are provided separately. That is, the earth covering plate is disposed behind the groove forming device via a support member extending rearward of the apparatus (see FIGS. 1 to 4 of Patent Document 1).

JP 2002-315407 A

In the paddy field work device configured as described above, since there is a gap between the grooving device and the earth covering plate, sawdust drifting on the rice field may enter the gap or be caught on the supporting member of the earth covering plate and accumulate as it is. is there. For this reason, the mud on the surface is not easily guided to the groove by being disturbed by accumulated swarf, which may hinder the backfilling of the groove.
In addition, since a support member for arranging the earth covering plate is required, there remains room for improvement in terms of simplification of assembly and cost reduction.
An object of the present invention is to provide a paddy field working apparatus that is less likely to accumulate sawdust and is advantageous in terms of assembly and cost.

  A first characteristic configuration according to the present invention is a paddy field work apparatus including a groover for supplying a granular material while forming a groove on a rice field, and a covering board for refilling the groove formed by the groover. Thus, the cover plate is attached to the groove producing device so as to be located immediately after the groove producing device.

[Action and effect]
According to this configuration, since the earth covering plate is attached to the groove producing device, the gap between the groove producing device and the earth covering plate is small. Therefore, there is little possibility that sawdust or the like is caught on the cover plate during operation, and the mud on the paddy surface is appropriately guided by the cover plate into the groove and backfilled.
Furthermore, according to this structure, the support member etc. for arrange | positioning a covering board behind a groove making machine are not especially required. Therefore, the number of parts can be reduced, the assembling work can be simplified, and the cost can be reduced.

  The second characteristic configuration according to the present invention is that the covering plate is provided so that its position can be changed in the vertical direction with respect to the groove producing device.

[Action and effect]
According to this configuration, the position of the cover plate with respect to the grooving device can be changed up and down according to the state of the surface of the mud, such as hardness and softness of the mud, and it is always appropriate depending on the state of the surface. An amount of mud can be fed back into the ditch and backfilled.

  The 3rd characteristic structure which concerns on this invention exists in the point by which the said covering board is comprised with a flexible member provided with elasticity.

[Action and effect]
According to this configuration, the mud soil that has been backfilled is pressed by the elastic force of the cover plate, so that the paddy surface after backfilling is more evenly ground.

  A fourth characteristic configuration according to the present invention includes a connecting portion attached to the groove forming device to which a powder material supply hose is connected, and the connecting portion is configured by a flexible member having elasticity. The cover plate is integrally formed with the connection portion.

[Action and effect]
According to this configuration, since the connecting portion and the cover plate are integrally formed, the number of parts can be further reduced, and further assembly work and cost reduction can be achieved.
In addition, according to the present configuration, the mud soil that has been backfilled is pressed by the elastic force of the cover plate, so that the paddy surface after backfilling is more evenly ground.

  5th characteristic structure which concerns on this invention exists in the point which equips the horizontal edge part of the said earth covering board with the bending part bent downward.

[Action and effect]
According to this structure, since the mud on the paddy surface is efficiently guided to the groove by the bent portion provided in the cover plate, the groove is more reliably backfilled.

Overall side view of riding rice transplanter Rear view of fertilizer application equipment Whole side view of seedling planting device Longitudinal section around the groove Perspective view after assembly of groover, cover plate, and connection part Cross-sectional view after assembling of grooving device, cover plate and connecting part Exploded perspective view before assembling the groover, the cover plate, and the connecting part A plan view showing seedling planting strips formed on the rice field and groove marks backfilled with a cover plate Longitudinal sectional view after assembling of groover, cover plate and connecting part according to another embodiment The perspective view after the assembly | attachment of the grooving machine which concerns on another embodiment, a covering board, and a connection part The perspective view after the assembly | attachment of the grooving machine which concerns on another embodiment, a covering board, and a connection part

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
[Overall configuration of riding rice transplanter]
A riding type rice transplanter equipped with a fertilizer application device 8 (an example of a paddy field work device) according to the present invention will be described with reference to FIGS.
FIG. 1 shows the entire side surface of the riding type rice transplanter. FIG. 2 shows the back of the fertilizer application 8. The whole side surface of the seedling planting apparatus 14 is shown by FIG.

  As shown in FIG. 1, an engine 4 and a transmission case 5 are provided at the front part of a traveling machine body 1 having a pair of left and right front wheels 2 and a pair of left and right rear wheels 3 that can be steered. A steering unit 6 equipped with a steering handle and the like and a driver's seat 7 are provided, and a fertilizer application 8 is disposed at the rear of the traveling machine body 1.

  A driving unit step 9 having a substantially flat step portion is provided on the left and right sides of the engine 4, between the control unit 6 and the driving seat 7, and on the left and right sides of the driving seat 7. Further, a reserve seedling table 11 is disposed at a position opposite to the position where the engine 4 is disposed outside. A mounting base 10 having a rising surface provided at the rearmost part of the operating unit step 9 and having a mounting surface higher than that of the operating unit step 9 is disposed. The fertilizer hopper 12 and the fertilizer feeding mechanism of the fertilizer application device 8 are disposed on the mounting base 10. 22 is mounted.

  At the rear of the traveling machine body 1, a link mechanism 13 is connected so as to be movable up and down, and a seedling planting device 14 is attached to the link mechanism 13 to constitute a riding type rice transplanter. The seedling planting device 14 includes a planting transmission case 15, a rotating case 16 that is rotatably supported on the left and right sides of the planting transmission case 15, a pair of planting claws 17 that are disposed at both ends of the rotating case 16, and grounding The float 18 and the seedling stand 19 are configured.

[Configuration of fertilizer application equipment]
Next, the structure of the fertilizer application apparatus 8 is demonstrated based on FIGS.
As shown in FIG. 1 to FIG. 3, a support frame 21 is fixed along the left-right direction of the traveling machine body 1 to the upper part of the machine body frame 20 to which the link mechanism 13 is connected at the rear part of the traveling machine body 1, and a fertilizer feeding mechanism is provided. 22 is connected to the support frame 21. A fertilizer hopper 12 made of transparent resin is attached over the upper portion of the fertilizer feeding mechanism 22, and a lid portion 12 a made of transparent resin is provided so as to be openable and closable around the rear horizontal axis. Accordingly, the fertilizer feeding mechanism 22 and the fertilizer hopper 12 are arranged side by side on the rear side of the driver seat 7.

  The fertilizer feeding mechanism 22 is configured by disposing an unillustrated feeding roll having a large number of recesses for entering the granular material along the circumferential direction on the outer periphery, rotatably arranged above the funnel portion 28, and not shown. The feeding roll is configured to rotate by being engaged with the driven gear 32 integrally formed with the shaft portion of the feeding roll and the driving gear 33a of the driving shaft 33 to which power is input.

  As shown in FIGS. 1 and 2, a PTO shaft 34 that transmits power to the seedling planting device 14 is extended from the mission case 5, and a crankshaft 35 that takes power from the PTO shaft 34 sideways is provided on the body frame 20. It is pivotally supported by a fixed transmission case 26. The output of the crankshaft 35 is connected via a linkage rod 36 to a one-way clutch 37 that is externally fitted to the drive shaft 33.

  As shown in FIGS. 1 and 2, a blower 25 and a motor 25 </ b> A for driving the blower 25 are supported on the lower side of the driver seat 7, and the wind generated by the blower 25 is supplied to each funnel portion 28. A pipe-shaped air duct 24 is extended from the blower 25 so as to extend along the support frame 21.

  As shown in FIG. 2, in the funnel portion 28 connected to the lower portion of the fertilizer feeding mechanism 22, the supply port 28 a of the funnel portion 28 is inserted into the air duct 24 via a seal rubber (not shown) and fixed. is there.

  With the above-described structure, the rotary case 16 of the seedling planting device 14 is rotationally driven by the power of the PTO shaft 34, and the seedlings are alternately taken out from the seedling table 19 by the pair of planting claws 17, and are planted on the rice field. Planting work. At the same time, the reciprocating motion of the linkage rod 36 caused by the rotational motion of the crankshaft 35 is converted into the rotational motion of the drive gear 33a by the one-way clutch 37, and the unillustrated feed roll rotates intermittently via the driven gear 32. Driven.

  Thereby, the fertilizer enters from the fertilizer hopper 12 into the recess of the feed roll (not shown), and the fertilizer is fed to the funnel portion 28 by the intermittent rotation of the feed roll. Then, the high pressure wind from the blower 25 is supplied to the funnel portion 28 via the blower duct 24, and the fertilizer is quickly supplied to the groove forming device 23 through the conveying hose 29 by the high pressure wind, and the groove forming device 23. As a result, fertilizer is fed into the grooves formed on the rice field and fertilization work is performed.

[Configuration of groover]
Next, the groove generator 23 will be described with reference to FIGS.
FIG. 4 shows a longitudinal section near the groove generator 23. FIG. 5 shows a perspective view after assembling the groove generator 23, the covering plate 39, and the bellows member 30. FIG. 6 shows a cross-sectional view of the grooving device 23, the cover plate 39, and the bellows member 30 after assembly. FIG. 7 shows an exploded perspective view of the groove producing device 23, the cover plate 39, and the bellows member 30 before assembly. FIG. 8 is a plan view schematically showing the seedling planting strips 41 formed on the rice field and the groove marks 42 backfilled by the covering earth plate 39.

  As shown in FIG. 4, a hard plastic grooving plate 27 having a triangular shape in side view is connected to the bottom surface of the grounding float 18, and the grooving device 23 is connected to the rear portion of the grooving plate 27 with a bolt 45. . As shown in FIG. 1, the fertilizer feeding mechanism 22 and the groove generator 23 include a funnel portion 28, a transport hose 29 (an example of a powder body supply hose), and a bellows member 30 made of an elastically deformable rubber material. They are connected by (an example of a connection unit).

  As shown in FIG. 7, the groove generator 23 is crossed by a front part 23a fixed to the grooved plate 27, and a right side wall part 23b and a left side wall part 23c standing from both left and right ends of the front part 23a. The surface shape is formed in a substantially U shape. In the vicinity of the upper end of the groove forming device 23, a locked member 38 having a substantially U-shaped cross section is fixed across the right side wall portion 23b and the left side wall portion 23c. A protrusion piece 38a for defining the vertical position of the cover plate 39 is provided.

  As shown in FIGS. 5 to 7, a metal cover plate 39 and a rubber bellows member 30 are attached to the groove generator 23.

  As shown in FIG. 7, the earth covering plate 39 is a groove formed by a locking portion 39 b having a plurality of through holes 39 a in the vertical direction, two L-shaped fixing portions 39 c and 39 c, and the groove generator 23. And a guide portion 39e having a bent portion 39f for guiding the mud of the paddy surface into the groove, and these are integrally formed.

  The bellows member 30 includes a first attachment portion 30a to which the conveyance hose 29 is fitted, a telescopic bellows portion 30b, and a second attachment portion 30c that is fitted to the upper portion of the groove generator 23. Is integrally molded.

  When attaching the covering plate 39 and the bellows member 30 to the groove producing device 23, the covering earth plate 39 is first arranged behind the groove producing device 23 (the side where the locked member 38 is provided), While selecting one of the plurality of through-holes 39a provided in the stop portion 39b and inserting the projection piece 38a of the locked member 38, the two fixing portions 39c and 39c are pushed left and right, and the groove is formed. The fixing portions 39 c and 39 c are fitted on the groove forming device 23 so as to surround the device 23. Then, female screw portions 39d, 39d provided at the tips of the fixing portions 39c, 39c are arranged on the front portion 23a of the groove producing device 23, and further, a fixing plate 40 is arranged thereon, and the two bolts 43 are fixed. The plate 40 is penetrated and screwed into the female screw portions 39d and 39d to be fastened and fixed. Thereby, the earth covering board 39 is arrange | positioned just behind the groove production machine 23. FIG.

  Next, the protruding piece 38a of the locked member 38 is inserted into the through hole 30d provided in the bellows member 30 from the inside of the second attachment portion 30c, and then the second attachment portion 30c is disposed above the groove generator 23. Fit it over.

  As shown in FIG. 8, the groove maker 23 having the above-described configuration is provided in each of the center, right side, and left side ground floats 18a, 18b, and 18c. The groove device 23 supplies powder particles such as fertilizer to the rice field while forming a groove on the lateral side (grounding floats 18a, 18b, 18c side) of the seedling 41 planted by the planting claws 17 of the seedling planting device 14. After that, the mud on the paddy surface is guided back into the groove by the guide portion 39e inclined obliquely downward from the engaging portion 39b of the covering plate 39 (42 in FIG. 8 indicates the backfilled groove trace). .

According to this configuration, since the earth covering plate 39 is attached to the groove producing device 23, the gap between the groove producing device 23 and the earth covering plate 39 is small. Therefore, there is little possibility that sawdust or the like is caught on the cover plate 39 during operation and the mud on the paddy surface is appropriately guided by the cover plate 39 into the groove and backfilled.
Furthermore, according to this structure, the support member for arrange | positioning the earth covering board 39 in the back of the groove making machine 23, etc. are not required especially. Therefore, the number of parts can be reduced, the assembling work can be simplified, and the cost can be reduced.

  Moreover, in this structure, the latching | locking part 39b of the earth covering board 39 has the some through-hole 39a in the up-down direction, By selecting either of these through-holes 39a, the groove making machine of the earth covering board 39 The position in the vertical direction with respect to 23 can be changed. For this reason, the position of the covering board 39 with respect to the grooving device 23 can be changed up and down in accordance with the state of the surface of the mud, such as the hardness of the mud and the tension of the water. The mud can be fed back into the ditch and backfilled.

  Moreover, in this structure, the guide part 39e of the covering board 39 is provided with a bent part 39f bent downward at the lateral end part (seedling planting line side), and the grounding floats 18a and 18b at the other lateral end part side. , 18c are arranged. For this reason, the mud on the paddy surface is efficiently guided to the groove by the action of both the bent portion 39f of the guide portion 39e and the grounding floats 18a, 18b, 18c, so that the groove is backfilled more reliably.

[Another embodiment]
[1] The cover plate 39 in the above-described embodiment may be formed integrally with the groove generator 23.
[2] It is good also as a structure which provides the bending part 39f in the above-mentioned embodiment in the side edge part of the both sides of the guide part 39e.
[3] The cover plate 39 in the above-described embodiment may be made of a flexible member having elasticity. According to this configuration, the mud soil that has been backfilled by the elastic force of the cover plate 39 is pressed, so that the paddy surface after backfilling is more evenly ground.
[4] As shown in FIGS. 9 and 10, the bellows member 30 and the cover plate 39 in the above-described embodiment are formed of a flexible member having elasticity, and the cover plate 39 is integrated with the bellows member 30. It is good also as the structure currently formed. According to this structure, since the bellows member 30 and the covering board 39 are integrally formed, the number of parts can be further reduced, and further assembly work and cost reduction can be achieved. In addition, according to the present configuration, the mud that has been backfilled is pressed by the elastic force of the cover plate 39, so that the paddy field after the backfilling is leveled more cleanly.
[5] As shown in FIG. 11, the cover plate 39 in the above-described embodiment does not include the L-shaped fixing portions 39c, 39c, and the member to be locked is provided in one of the through holes 39a in the locking portion 39b. The cover plate 39 may be configured to be fixed to the groove forming device 23 by inserting the projection pieces 38 a of 38 and pressing the projection pieces 38 a with the second mounting portion 30 c of the bellows member 30.

  The present invention can be applied not only to a fertilizer that supplies fertilizer and the like as a granular material, but also to a direct seeding device (corresponding to a paddy field working device) that supplies seed meal and the like as a granular material. It is useful not only for walking rice transplanters.

8 Fertilizer application equipment (paddy field work equipment)
23 Grower 29 Transport hose (powder supply hose)
30 Bellows member (connection part)
39 Covering plate 39f Bending part

Claims (5)

A paddy field working apparatus comprising a groover for supplying powder particles while forming grooves on a rice field, and a covering board for backfilling the grooves formed by the groover,
The paddy field work apparatus which has attached the above-mentioned earth covering board to the above-mentioned groove-grower so that it may be located just behind the groove-grower.   The paddy field work device according to claim 1, wherein the covering plate is provided so that the position of the covering plate can be changed in the vertical direction with respect to the grooving device.   The paddy field work apparatus according to claim 1 or 2, wherein the cover plate is made of a flexible member having elasticity.   A hose for supplying powder and particles is connected, and includes a connecting portion attached to the grooving device. The connecting portion is made of a flexible member having elasticity, and the cover plate is integrated with the connecting portion. The paddy field work device according to claim 1 formed in an automatic manner.   The paddy field working apparatus according to any one of claims 1 to 4, further comprising a bent portion bent downward at a lateral end portion of the covering plate.

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