JP5889156B2 - Paddy field machine - Google Patents

Description

  The present invention is a paddy field work device supported at the rear part of the self-propelled vehicle so as to be movable up and down, and supported by the paddy field work device side by side in the lateral direction of the self-propelled vehicle body and formed with a material supply groove in a field scene. A plurality of material feeders for supplying agricultural materials to the material supply groove, and drained into a field scene between locations where a pair of adjacent material feeders of the plurality of material feeders is supported by the paddy field work device. The present invention relates to a paddy field machine including a grooved body that forms a groove.

  Conventionally, for example, there has been a paddy field machine shown in Patent Document 1. In this paddy field machine, the working part supported by the rear part of the self-propelled vehicle so as to be movable up and down, the grooving fertilizer supported by the working part side by side in the lateral direction of the self-propelled vehicle, and supported by the working part And a grooved body. The grooving fertilizer is configured to form grooves in the field and to supply fertilizer to the formed grooves. The grooving body is configured to form a drainage groove in the field in front of the grooving fertilizer.

JP 2012-1000060 A

  In the paddy field machine, when the grooved body is supported by the paddy field working device, it is advantageous that the grooved body can be moved up and down at once by the lifting operation of the paddy field working device, while the drainage groove is formed. Can be obtained in the state.

  When the above-described conventional technology is applied, the grooved body performs a grooved operation in front of the material feeder, so that the muddy water flow generated due to the grooved body easily affects the grounding float. In addition, for those equipped with a grounding float with a wide width, it is necessary to arrange the grooved body close to the self-propelled vehicle so as not to contact the grounded float, and the support structure becomes complicated. It is difficult to support.

  An object of the present invention is to provide a paddy field machine capable of providing a grooving body in a state in which it is easy to avoid the occurrence of problems such as the influence on the above-mentioned grounding float while the grooving body is supported by a paddy field working device. There is to do.

The paddy field machine according to the present invention is:
A paddy field work apparatus supported at the rear of the self-propelled vehicle so as to be movable up and down;
A plurality of material feeders that are supported side by side in the lateral direction of the self-propelled vehicle body on the paddy field work device, and that supply agricultural materials to the material supply grooves that are formed in the field scene, and
Supported by the paddy field work device, and a grooved body that forms a drainage groove in a farm scene between locations where a pair of adjacent material feeders out of the plurality of material feeders passes,
The grooving body has a grooving body for grooving the field scene, and extends laterally outward from the grooving body to level the field scene on the side of the drainage groove formed by the grooving body. With a leveling slope,
When the grooving body is viewed from the side of the self-propelled vehicle body, the front end of the grooving main body is located on the front side of the self-propelled vehicle body from the rear end of the material feeder, and the front end of the leveling plate is the rear end of the material feeder. It is further arranged to be located on the rear side of the self-propelled vehicle body.

  According to this configuration, since the grooving body is supported by the paddy field work device, if the paddy field work device is lifted, the grooving body is lifted and lowered along with the paddy field work device. The grooved body can be moved up and down all at once.

  According to this configuration, the front end of the grooving main body is located on the front side of the self-propelled vehicle body from the rear end of the material feeder, and the front end of the leveling plate is located on the rear side of the self-propelled vehicle body from the rear end of the material feeder. As described above, since the grooved body is provided, the grooved body can be supported at the rear of the paddy field work apparatus while suppressing the length of the grooved body protruding rearward from the material feeder. The mud flow caused by the ground can be made less likely to affect the grounding float, and the length of the front and rear of the paddy field work device can be suppressed due to the grooved body, and the support structure of the grooved body can be simplified. . Furthermore, it is easy for mud to fall out between the material feeder and the leveling board, and it is difficult for mud to remain on the leveling board.

  Therefore, according to the present invention, not only can the grooving body be moved up and down at once by the lifting operation of the paddy field work apparatus, but the length of the front and rear of the paddy field work apparatus is prevented from being increased due to the grooving body. The front and rear length of the entire paddy field work machine can be shortened, and the support structure of the grooved body can be simplified, thereby facilitating operation and operation. Furthermore, it is easy to avoid the influence of the mud flow generated by the grooving body on the grounding float and the mud pool of the leveling body, and it is easy to perform a work with good finishing.

  In the present invention, the material feeder includes a material feeder body that grooves in a farm scene, and a covering body that lands on the material supply groove after material supply, and the grooving body in a side view of a self-propelled vehicle body It is preferable that the front end of the ground covering plate is positioned on the vehicle body front side from the rear end of the covering soil body, and the front end of the leveling plate is positioned on the vehicle body rear side from the rear end of the covering soil body.

  According to this configuration, the material supply groove after material supply can be backfilled with a cover plate to prevent the supplied material from floating, and the front and back length of the paddy field work device is increased due to the grooved body. It is possible to easily remove the mud from between the covering body and the leveling board while suppressing the mud, and it is difficult for the mud to collect on the leveling board.

  Therefore, according to the present invention, while it is possible to prevent the supplied material from being lifted, and the like, and the front and rear length of the entire paddy field work machine can be shortened, it is easy to avoid mud accumulation on the leveling plate. .

  In the present invention, it is preferable that the leveling plate is supported on the grooving body so as to be adjustable in height.

  By adjusting the mounting height of the leveling plate with respect to the grooving body, the distance from the leveling plate to the lower end of the grooving body changes. The leveling plate abuts the farm scene and regulates the entry of the grooving body into the farm field. Therefore, according to this structure, the installation depth of the leveling board with respect to a grooving main body can be adjusted, and the penetration depth to the agricultural field of a grooving main body can be adjusted. That is, the depth of the drainage groove formed by the grooving body can be adjusted.

  Therefore, according to the present invention, it is possible to lightly adjust the grooving resistance applied to the grooved body by adjusting the depth of the drainage groove shallowly or to adjust the depth of the drainage groove deeply to smoothly adjust the drainage.

  In the present invention, it is preferable that the rear end edge of the leveling plate is formed as an inclined edge that is positioned on the front side of the self-propelled vehicle body as the distance from the grooving body increases laterally.

  According to this structure, even if mud wraps around the rear side of the grooved body, the slanted edge shape of the rear edge of the leveling plate tends to slip out to the lateral outer side of the grooved body.

  Therefore, according to the present invention, it is easy to avoid the occurrence of mud pool due to stagnation even if mud spills behind the grooved body.

  In the present invention, a base end portion of the ground leveling plate connected to the grooving main body is formed in a shape inclined with respect to a side wall portion of the grooving main body when viewed from the front-rear direction of the self-propelled vehicle body. It is preferable that a chamfered inclined portion is formed at the upper end portion of the inner wall of the drainage groove formed by.

  According to this configuration, the chamfered inclined portion is formed at the upper end portion of the inner wall of the drainage groove formed by the grooving main body, and the inner wall is unlikely to collapse.

  Therefore, according to the present invention, mud clogging due to the collapse of the inner wall of the drainage groove hardly occurs, and the drainage can be performed smoothly.

  In the present invention, it is preferable that the grooving body is supported on the paddy field work apparatus so that the height of the grooving body can be adjusted.

  According to this configuration, even if the height of the paddy field work device is changed, the depth of entry of the grooving body into the field does not change by adjusting the mounting height of the grooving body to the paddy field work device. The grooving resistance applied to the grooving body is not changed or can be adjusted so as not to change so much.

  Therefore, according to the present invention, the grooving resistance applied to the grooving body can be made constant or substantially constant even when the ground height of the paddy field work apparatus is changed and the material supply depth by the material supplier is changed.

It is a side view which shows the whole paddy field machine. It is a top view which shows the whole paddy field machine. It is a side view which shows a paddy field working apparatus. It is a rear view which shows a paddy field working apparatus. It is a rear view which shows the fertilization operation part of a paddy field working apparatus. It is a cross-sectional top view which shows a paddy field working apparatus. It is a top view which shows the lower part of a paddy field working apparatus. It is a perspective view which shows the grooved body of the state which the leveling board and the grooved main body isolate | separated. It is a side view which shows a grooved body and a material supply device. (A) is a side view showing the grooved body in a state in which the mounting height of the entire leveling plate to the grooving body is increased, and (b) is a state in which the mounting height of the entire leveling plate to the grooving body is lowered. It is a side view which shows a groove cutting body. (A) is a side view showing a grooved body in a state where the mounting height of the grooved body to the paddy field working device is lowered, and (b) is a state in which the mounting height of the grooved body to the paddy field working apparatus is increased. It is a side view which shows a groove cutting body. It is a top view which shows a grooving body and a material supply device. It is a rear view which shows a grooved body. It is a longitudinal cross-sectional view which shows a drainage groove.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an entire paddy field working machine according to an embodiment of the present invention. FIG. 2 is a plan view showing the entire paddy field working machine according to the embodiment of the present invention. As shown in FIGS. 1 and 2, the paddy field machine according to the embodiment of the present invention includes a pair of left and right front wheels 1 and 1 and a pair of left and right driveable rear wheels 2 and 2. A self-propelled vehicle configured to be self-propelled and a paddy field work device A connected to a rear portion of a body frame 6 of the self-propelled vehicle via a link mechanism 5 are provided.

  The self-propelled vehicle includes a prime mover 3 provided at the front part of the vehicle body, and is configured to drive the front wheel 1 and the rear wheel 2 by the driving force from the engine 15 provided in the prime mover 3 so as to be self-propelled. is there. The self-propelled vehicle includes a driving part having a driving seat 4 provided at the rear part of the vehicle body, and is configured in a riding type so as to ride on the driving part and drive.

  In the paddy field work apparatus A, the link mechanism 5 is swung up and down with respect to the vehicle body frame 6 by the hydraulic cylinder 20, so that the grounding float 12 is in contact with the field mud and the grounding float 12 is in the field mud. Ascending / descending operation is carried out to the ascending non-working state.

  That is, the paddy field work machine is configured to perform four seeding work and four fertilization work by the paddy field work apparatus A by lowering the paddy field work apparatus A to the lowered work state and running the self-propelled vehicle. It is.

The paddy field working apparatus A will be described.
FIG. 3 is a side view showing the paddy field working apparatus A. FIG. FIG. 4 is a rear view showing the paddy field working apparatus A. FIG. 5 is a rear view showing the fertilizer application unit 10 provided in the paddy field working apparatus A. FIG. 6 is a cross-sectional plan view showing the paddy field working apparatus A. As shown in FIGS. 1 to 6, the paddy field work apparatus A includes a machine frame F (see FIG. 7) having a front end connected to a lower portion of a rear link 5 c that is upward and downward of the machine body constituting the link mechanism 5, and a machine frame F Four fertilizer working sections 10 arranged in a row in the horizontal direction of the machine body, four sowing work sections 9 arranged in a row in the horizontal direction of the machine body at the rear of the machine frame F, and the machine frame And a wide ground float 12 disposed below F.

  The body frame F is connected to the rear link 5c via a rolling fulcrum shaft 5d facing the body front and rear. Therefore, the paddy field work apparatus A rolls with respect to the self-propelled vehicle around the rolling axis X of the rolling fulcrum shaft 5d.

  FIG. 7 is a plan view showing a lower part of the paddy field working apparatus A. FIG. As shown in FIGS. 3, 6, and 7, the fuselage frame F includes a drive case 19 that is long in the lateral direction of the fuselage frame, the upper part of the front end being connected to the rear link 5 c by a rolling fulcrum shaft 5 d, A pair of left and right transmission cases 26 extending from the end portion toward the rear of the machine body frame are provided.

  The drive case 19 forms a central portion in the lateral direction of the drive case 19 and has a feed case 19a in which a rolling fulcrum shaft 5d is connected to the upper part on the front end side, and a lateral side from both lateral sides on the lower end side of the feed case 19a. A pair of left and right output shaft cases 24, 24 extending outward and constituting the lateral side portion of the drive case 19 and having the extended end portion connected to the base portion of the transmission case 26 are configured. .

The sowing work unit 9 will be described.
As shown in FIGS. 3, 4, and 6, the four sowing operation units 9 are provided on a seed feeding mechanism 28 supported by a seeding frame 47 that is long in the lateral direction of the machine body, and an upper part of a feeding case 48 that constitutes the seed feeding mechanism 28. An attached seed tank 27 and a seeding tube 29 extending downward from the lower part of the feeding case 48 are provided.

  As shown in FIGS. 3, 4, 5, and 6, the seeding frame 47 that supports the four seed feeding mechanisms 28 is supported by a stay 46 that is attached to the upper ends of the extension ends of the pair of left and right transmission cases 26 and 26. ing. The seed tank 27 of the two sowing work units 9 on the left side of the machine body and the seed tank 27 of the two sowing work units 9 on the right side of the machine body are integrally formed in one seed tank in which the inside of the tanks communicates. Has been. The sowing cylinder 29 of each sowing work unit 9 is arranged so that the sowing opening on the extended end side of the sowing cylinder 29 is located near the upper side of the mud surface of the field in the descending work state of the paddy field working device A.

  The four sowing operation parts 9 are configured to be driven by the driving force from the engine 15 transmitted to the driving case 19 by the rotary transmission shaft 18 (see FIG. 1) extending rearward from the rear part of the self-propelled vehicle. It is.

  That is, as shown in FIGS. 4, 6, and 7, the driving force transmitted from the engine 15 to the rotation transmission shaft 18 is input to the driving case 19 by the input shaft protruding forward from the lower end side front portion of the feed case 19 a. Then, the driving force input to the drive case 19 is input to the pair of left and right transmission cases 26 and 26 via the pair of left and right output shaft cases 24 and 24. The driving force input to the left transmission case 26 is transmitted to the feeding drive shaft 43 of the two seed feeding mechanisms 28, 28 on the left side of the machine body via the gear transmission mechanism 44, so that the two seed feeding mechanisms 28, 28 feeding rolls 30 are driven. The driving force input to the right transmission case 26 is transmitted to the feeding drive shaft 43 of the two seed feeding mechanisms 28, 28 on the right side of the machine body via the gear transmission mechanism 44, so that the two seed feeding mechanisms 28, 28 feeding rolls 30 are driven.

  Accordingly, the paddy field work apparatus A feeds the seeds stored in the various child tanks 27 from the seed tank 27 by the seed feeding mechanism 28, and the seeds fed by the various child feeding mechanisms 28 from the sowing cylinder 29 to the mud surface of the field. Drop and supply. The four sowing operation units 9 sow iron-coated seeds for rice as an example of seeds.

The fertilizer application unit 10 will be described.
As shown in FIGS. 3, 5, and 6, the four fertilizer working units 10 include a material feeding mechanism 57 supported by the feeding frame 75 and a material tank attached to an upper portion of a feeding case 57 a constituting the material feeding mechanism 57. 56, a supply cylinder 58 extending downward from the discharge cylinder portion of the feeding case 57a, and a material supplier 59 communicated with the extended end of the supply cylinder 58 via the bellows cylinder 63. Yes.

  The feeding frame 75 that supports the material feeding mechanism 57 of the four fertilizer working units 10 is supported by support columns 73 that are erected on both lateral ends of the drive case 19. Of the four fertilizer working sections 10, the material tank 56 of the two fertilizer working sections 10 and 10 on the left side of the machine body and the material tank 56 of the two fertilizer working sections 10 and 10 on the right side of the machine body are one material in which the inside of the tank communicates. It is integrally formed with the tank. The material feeders 59 of the four fertilizer working units 10 are provided in the rear part of the paddy field working device A in the lateral direction of the self-propelled vehicle body. Specifically, the four material feeders 59 are arranged in the lateral direction of the machine body and supported by the grounding float 12 so as to be positioned one by one on the lateral side of the sowing cylinder 29 of the four sowing work units 9.

  The four fertilizer working units 10 are configured to be driven by the driving force from the engine 15 transmitted to the drive case 19.

  That is, as shown in FIGS. 3, 5, and 6, the driving force input from the engine 15 to the drive case 19 is fed out from the left end portion of the left output shaft case 24 via the interlock mechanism 71. This is transmitted to the drive shaft 67. The left feeding drive shaft 67 is connected to a feeding roll 66 provided in the two material feeding mechanisms 57, 57 on the left side of the machine body, and serves as a feeding drive shaft common to the two material feeding mechanisms 57, 57 on the left side of the machine body. The driving force input to the drive case 19 is transmitted from the right end portion of the right output shaft case 24 to the single right delivery drive shaft 67 via the interlocking mechanism 71. The right delivery drive shaft 67 is connected to a delivery roll 66 provided in the two material delivery mechanisms 57, 57 on the right side of the machine body, and serves as a delivery drive shaft common to the two material delivery mechanisms 57, 57 on the right side of the machine body. The left and right interlocking mechanism 71 includes a crank body 69 that outputs the driving force of the output shaft case 24, and a swing link 68 and a one-way rotation clutch 68 a that are attached to the feeding drive shaft 67.

  Accordingly, the paddy field work apparatus A feeds the granular fertilizer stored in each material tank 56 from the material tank 56 by the material feeding mechanism 57, and supplies the fertilizer fed by each material feeding mechanism 57 via the supply cylinder 58. The material is supplied to the container 59, and is supplied to the field by the material supplier 59 near the side of the seeding part by the seeding operation unit 9.

Each material supplier 59 communicates with the bellows cylinder 63 at the upper end side and has a material supply body 59a provided with a supply opening at the lower end side, and extends rearward of the self-propelled vehicle body from the rear end of the material supplier body 59a. A spatula-shaped covering body 60 is provided.
That is, the material feeder main body 59a of each material feeder 59 forms a material supply groove in the field near the side of the sowing location by the sowing work unit 9, and fertilizer from the supply cylinder 58 is formed in the formed material supply groove. Supply. The soil covering body 60 fills the material supply groove after supplying the fertilizer and fills the material supply groove after supplying the fertilizer.

The formation of the drainage groove will be described.
As shown in FIGS. 3, 4, and 6, the paddy field work device A includes a grooved body 90 provided at the center of the rear part of the paddy field work device A in the lateral direction of the self-propelled vehicle body, and four material feeders 59, a drainage groove 35 (see FIG. 14) is formed by a grooved body 90 in a field between a portion where a pair of adjacent material feeders 59, 59 pass on the inner side of the self-propelled vehicle body. is there.

The grooved body 90 will be described.
As shown in FIGS. 8, 10, 12, and 13, the grooving body 90 includes a grooving main body 92 having a grooving blade portion 91 having a lower narrow shape in the vehicle body front-rear direction and an upper portion of the grooving main body 92. And a leveling plate 100 extending laterally outward from the side wall portions 93a on both lateral sides of the leveling plate support portion 93 provided on the side.

  The grooving main body 92 is located over the grooving blade portion 91 and the leveling plate support portion 93, and is configured to have a hollow structure including a hollow portion 94 opened forward and rearward of the grooving main body 92. By moving the muddy water through the hollow portion 94 from the front side to the rear side of the grooved body 90, the movement resistance that the grooved body 90 receives by the muddy water can be suppressed.

  On the base end side of the left and right leveling plates 100, a vertical plate-shaped connecting plate portion 101 formed by the bent end portions of the plate bodies constituting the leveling plate 100 is provided. The connecting pin 102 provided at the front end of the connecting plate portion 101, the vertically long connecting hole 103 provided on the connecting plate portion 101 on the rear side of the connecting pin 102, and the connecting hole 103 are inserted to adjust the connecting pin 103. The connecting plate portion 101 is connected to the side wall portion 93a of the leveling plate support portion 93 by the fastening bolts 104 attached to the side wall portion 93a of the main plate support portion 93, so that the left and right leveling plates 100 are attached to the grooving main body 92. It is configured.

  A pair of left and right vertical connecting plate portions 95, 95 formed by attaching a sheet metal member to the front end side upper portion of the groove cutting blade portion 91 is provided at the front end portion of the groove cutting body 90. As shown in FIGS. 7, 9, and 10, the grooved body 90 is formed of a pair of left and right connecting plate portions 95 on a self-propelled vehicle lateral support rod 55 that is connected across the extending end sides of the pair of left and right transmission cases 26 and 26. , 95.

  That is, a support portion 80 formed by attaching a sheet metal member is provided at the center portion of the support rod 55 in the lateral direction (longitudinal direction) of the vehicle body. A pivot pin across the pair of left and right support plate portions 80a, 80a provided in the support portion 80 and the pair of left and right connection plate portions 95, 95 of the grooved body 90 inserted between the pair of left and right support plate portions 80a, 80a. By mounting 81, the grooved body 90 is supported by the support rod 55. Therefore, the grooved body 90 is swingable up and down around the swing axis P of the self-running vehicle body that is formed by the axis of the pivot pin 81.

  The support arm 96 spans the swing axis P between a support arm 96 extending forward from one connecting plate portion 95 of the grooved body 90 and a support frame 82 extending rearward from the feeding frame 75. A spring 85 that urges upward is connected. The support portion 80 is provided with a stopper portion 83 formed of a shaft body mounted over a pair of left and right support plate portions 80a, 80a. The stopper 83 receives and supports the end portions 95a of the pair of left and right connecting plate portions 95, 95 of the grooved body 90, and sets the lower limit of the grooved body 90 by setting the upper limit of the support arm 96. It is constituted as follows. The support frame 82 supports a medicine spraying device (not shown) at the rear end.

  In other words, the grooved body 90 is supported so as to be swingable up and down around the swing axis P, but the spring 85 raises the support arm 96 to urge the connecting plate portion 95 to the stopper portion 83. , The mounting height and mounting posture of the grooved body 90 with respect to the paddy field work apparatus A are set to a predetermined mounting height and mounting posture, and the positional relationship between the grooved body 90 and the material feeder 59 is A predetermined positional relationship is set.

That is, after the grooving blade portion 91 is positioned at a lower level toward the rear end side as the mounting posture and mounting height of the grooving body 90 with respect to the paddy field working device A when the paddy field working device A is lowered to the descending work state. The installation height and the installation posture are set so as to enter the mud layer of the farm field in a downward inclination posture and reveal the state where the left and right ground leveling plates 100 are pressed against the farm scene. The set mounting height and the set mounting posture are maintained by applying the connecting plate portion 95 to the stopper portion 83 by the spring 85. Therefore, as shown in FIG. 11, the grooved body 90 forms the drainage groove 35 (see FIG. 14) in the field by the grooved blade portion 91 of the grooved main body 92. The grooving body 90 levels the field scenes on both sides of the drainage groove 35 formed by the leveling plate 100.
When the grooving body 90 rides on the clot or stone, the grooving body 90 swings upward while elastically deforming the spring 85 by the reaction force from the clot or stone, and the grooving body 90 is deformed or damaged. Can be avoided.

  As shown in FIGS. 9 and 12, as the positional relationship between the grooved body 90 and the material supply unit 59 when the paddy field work apparatus A is lowered to the lowered work state, The front end 91f of the grooving blade portion 91 as the front end is located on the front side of the self-propelled vehicle body from the rear end 60r of the covering body 60 as the rear end of the material supply device 59, and the front end 100f of the leveling plate 100 is A positional relationship is set which is located on the rear side of the self-propelled vehicle body from the rear end 60r. This positional relationship is maintained by applying the connecting plate portion 95 to the stopper portion 83 by the spring 85, so that the groove cutting body 90 can easily drain mud from between the covering body 60 and the leveling plate 100, and the drainage groove. 35 is formed and the field scene is leveled.

  As shown in FIGS. 9 and 11, the pair of left and right support plate portions 80 a of the support portion 80 of the support rod 55 are provided with two shaft holes 87 and 87 that allow the shaft body constituting the stopper portion 83 to be attached and detached, The mounting height of the grooving body 90 with respect to the paddy field work apparatus A is configured to be adjustable in two stages.

  That is, the two shaft holes 87 and 87 are arranged with a gap in the swinging direction of the connecting plate portion 95. FIG. 11A is a side view showing the grooved body 90 in a state where the mounting height of the grooved body 90 with respect to the paddy field work apparatus A is lowered. FIG. 11B is a side view showing the grooved body 90 in a state where the mounting height of the grooved body 90 with respect to the paddy field work apparatus A is increased.

  As shown in these drawings, by replacing the shaft body constituting the stopper portion 83 with the two shaft holes 87, the position of the stopper portion 83 changes in the swinging direction of the connecting plate portion 95, and the stopper portion 83 is connected. The mounting height of the grooved body 90 with respect to the support portion 80 set by receiving and supporting the plate portion 95 changes in two stages.

As shown in FIGS. 8 and 12, the rear end edge 100 </ b> L in the laterally outer portion of the left and right leveling plates 100 is formed as an inclined edge that is positioned on the front side of the self-propelled vehicle body as it is farther laterally outward from the grooved main body 92. .
Therefore, even if mud mud wraps around the rear side of the grooved body 90, the mud mud is easily pulled out to the lateral outer side due to the inclination of the trailing edge 100L.

  As shown in FIGS. 8 and 13, the base end portion 100 a of the ground leveling plate 100 that is continuous with the grooving main body 92 has a higher disposition height as the shape of the self-propelled vehicle body as viewed in the front-rear direction is farther laterally outward. In this state, the drainage groove 35 is configured so as to be inclined with respect to the side wall portion 91a of the groove cutting blade portion 91 of the groove cutting main body 92 so that the drainage groove 35 is not easily collapsed.

That is, the base end portion 100 a of the ground leveling plate 100 leveles the upper end portion 36 a of the inner wall 36 of the drainage groove 35 formed by the groove cutting blade portion 91 of the groove cutting main body 92. Accordingly, as shown in FIG. 14, the upper end portion 36a of the inner wall 36 is formed in the chamfered inclined portion by the inclined shape of the base end portion 100 a.

  As shown in FIGS. 8 and 10, the upper and lower two-stage pin holes 97 for attaching / detaching the connecting pins 102 of the leveling plate 100 and the fastening bolts 104 are attached / detached to the side wall portion 93 a of the leveling plate support portion 93 of the grooving body 92. Bolt holes 98 with two upper and lower threads are provided, and the mounting height of the left and right ground leveling plates 100 with respect to the grooving main body 92 is adjustable.

FIG. 10A is a side view showing the grooved body 90 in a state where the mounting height of the entire leveling plate 100 with respect to the grooved main body 92 is increased. As shown in this figure, the connecting pin 102 of the leveling plate 100 is attached to the pin hole 97 on the upper side of the leveling plate support portion 93, and the bolt hole on the upper level side of the connecting hole 103 of the leveling plate 100 and the leveling plate support portion 93. by mounting the tighten bolts 104 over 98 DOO, mounting height of the whole leveling plate 100 is increased with respect to the grooving body 92.

FIG. 10B is a side view showing the grooved body 90 in a state where the mounting height of the entire leveling plate 100 with respect to the grooved main body 92 is lowered. As shown in this figure, the connecting pin 102 of the leveling plate 100 is attached to the pin hole 97 on the lower side of the leveling plate support portion 93, and the bolt hole on the lower side of the leveling plate support portion 93 and the connecting hole 103 of the leveling plate support portion 93. by mounting the tighten bolts 104 over 98 DOO, mounting height of the whole leveling plate 100 is lowered with respect to the grooving body 92.

Regardless of whether the mounting height of the entire leveling plate 100 with respect to the grooving body 92 is increased or decreased, the rear end side of the leveling plate 100 is used as a swinging fulcrum with the connecting pin 102 as a swing fulcrum. connected along a hole 103 swings adjusted up or down, by tightening the tighten bolts 104 to the side wall 93a at adjusted rocking position, mounting height of the ground leveling plate rear end coupling for grooving body 92 It changes up and down in the long hole range of the hole 103 .

  Regardless of adjusting the mounting height of the grooving body 90 to the paddy field work apparatus A to any adjustable mounting height, the mounting height of the leveling plate 100 to the grooving main body 92 is adjusted to any adjustable mounting height. However, the positional relationship between the material feeder 59 and the grooved body 90 is determined by the front end 91f of the grooved blade 91 serving as the front end of the grooved main body 92 by applying the connecting plate 95 to the stopper 83 with the spring 85. Is located on the front side of the self-propelled vehicle body from the rear end 60r of the covering body 60 as the rear end of the material feeder 59, and the front end 100f of the leveling plate 100 is located on the front side of the self-propelled vehicle body from the rear end 60r of the covering body 60. Set to positional relationship.

[Another Example]
(1) In the above-described embodiment, the example in which the fertilizer is supplied by the material supply device 59 has been shown. However, the material supply device 59 may be configured to supply the medicine.

(2) In the above-described embodiment, the material feeder 59 is provided with the covering body 60 supported by the material feeder body 59a. However, the material feeder 59 is not supported by the material feeder body 59a, and the ground float 12 or You may carry out by providing the covering body supported by the body frame F. FIG.

(3) In the above-described embodiment, an example in which the material supply unit 59 including the covering body 60 is employed has been described. However, a material supplying unit that does not include the covering body 60 may be employed.

(4) In the above-described embodiment, an example in which one wide grounding float 12 is provided is shown. However, a plurality of narrow grounding floats may be provided in place of one wide grounding float 12. .

(5) In the above-described embodiment, an example in which four seeding operation units 9 are provided has been described, but two or five or more seeding operation units 9 may be provided.

  The present invention can be used not only for paddy field work machines provided with the sowing work part 9 but also for paddy field work machines provided with a work part for seedling planting.

35 Drainage groove 36 Inner wall of drainage groove 36a Upper end portion of inner wall of drainage groove 59 Material feeder
59a material supply body 60 covered with soil body 60r material supply rear 90 grooving 92 of the front end 100 leveling plate 100a leveling plate of the side wall portion 91f grooving body grooving body 91a grooving body of the base end portion 100f leveling plate Front edge Rear edge of 100L leveling board A Paddy field work equipment

Claims (6)

A paddy field work apparatus supported at the rear of the self-propelled vehicle so as to be movable up and down;
A plurality of material feeders that are supported side by side in the lateral direction of the self-propelled vehicle body on the paddy field work device, and that supply agricultural materials to the material supply grooves that are formed in the field scene, and
Supported by the paddy field work device, and a grooved body that forms a drainage groove in a farm scene between locations where a pair of adjacent material feeders out of the plurality of material feeders passes,
The grooving body has a grooving body for grooving the field scene, and extends laterally outward from the grooving body to level the field scene on the side of the drainage groove formed by the grooving body. With a leveling slope,
When the grooving body is viewed from the side of the self-propelled vehicle body, the front end of the grooving main body is located on the front side of the self-propelled vehicle body from the rear end of the material feeder, and the front end of the leveling plate is the rear end of the material feeder. Paddy field work machine deployed to be located on the rear side of the self-propelled vehicle body. The material feeder comprises a material feeder body that grooves the field scene, and a covering body that lands on the material supply groove after material supply,
In a self-propelled vehicle body side view, the front end of the grooving main body is located on the vehicle body front side from the rear end of the covering body, and the front end of the leveling plate is located on the vehicle body rear side from the rear end of the covering body. Item 1. A paddy field machine according to Item 1.   The paddy field work machine according to claim 1 or 2, wherein the leveling plate is attached to the grooving main body and supported so as to be adjustable in height.   The paddy field work machine according to any one of claims 1 to 3, wherein a rear end edge of the leveling plate is formed on an inclined edge that is located on the front side of the self-propelled vehicle body as it moves away laterally from the grooving body.   A drainage formed by the grooving body by forming a base end portion of the leveling plate connected to the grooving body in a shape inclined with respect to a side wall portion of the grooving body as viewed in the longitudinal direction of the self-propelled vehicle body. The paddy field work machine according to any one of claims 1 to 4, wherein a chamfered inclined portion is formed at an upper end portion of an inner wall of the groove.   The paddy field work machine according to any one of claims 1 to 5, wherein the grooving body is supported on the paddy field work device so as to be adjustable in height.

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