JP2015062378A - Paddy seeder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a paddy seeder that facilitates avoiding such damage that buds of rice seeds are eaten by shellfish.SOLUTION: A paddy seeder includes a ridging body 11 having a leveling bottom. A pair of left and right ridging recesses 31 opened 31a toward a front of a vehicle body is distributed and provided in a part positioned in both lateral sides after passage of rear wheels T among the leveling bottom of the ridging body 11. A seeding device 10 includes a pair of left and right seeding working units for supplying rice seeds B to each other to a pair of left and right ridges A formed by the ridging body 11.

Description

  The present invention relates to a paddy seeding machine including a self-propelled vehicle body having a rear wheel and a seeding device connected to a rear portion of the self-propelled vehicle body.

  Conventionally, as shown in Patent Document 1, for example, a paddy field work machine configured to seed a field scene leveled with a leveling float by connecting a working unit having a leveling float and a seeding device to a rear part of a traveling machine body. was there.

JP 2013-128429 A

In order to carry out rice cultivation by direct sowing of seed pods, seed pods are directly sown in a field that has been plucked and drained, and then the field is maintained in a flooded state for germination and growth. It also suppresses the generation of weeds. 2. Description of the Related Art In recent years, shellfish [Sumiringaigai (commonly known as jumbo tanishi)] that eat buds and soft seedlings that have moved from seed pods by moving through a site where water exists have been generated in paddy fields.
In the case of the conventional direct sowing technique, the sowing location may be soaked in water that has made the field in a irrigated state, and damages such as eating shoots by shellfish may occur.

  An object of the present invention is to provide a seeder for paddy fields that can easily avoid the above-described damage.

The rice field seeder according to the first invention is
A self-propelled vehicle body having a rear wheel, and a seeding device connected to a rear portion of the self-propelled vehicle body;
Provided with a leveling bottom and a vertical solid body having a pair of left and right vertical recesses that are provided in a distributed manner in portions located on both sides of the leveling bottom after passing through the rear wheel and open to the front of the vehicle body ,
The seeding device is provided with a pair of left and right seeding operation units that supply seeds separately to the pair of left and right seeds formed by the three-dimensional seedling.

  According to the configuration of the first aspect of the present invention, the vertical recessed portion is allowed to act on the mud portion where the vertical solid body is grounded. In addition to this, the mud pushed out to the side by the rear wheel is taken into the upright recessed portion from the opening, and the upright recessed portion is allowed to act on the taken up mud, so that a finish with high finishing accuracy is formed. . The sowing can be directly sown by the sowing work section on the soot formed in this way. In this way, if the field after sowing is in the irrigated state, the shellfish will not move to the sowing site without water if the sowing site in the cocoon is soaked in water so that it does not soak. The movement of shellfish can be avoided. Even if the sowing location is not soaked in water, water can be supplied to the seed pods and the seedlings generated by the penetration of water between the ridges.

  Therefore, according to the first aspect of the present invention, rice can be cultivated in a state in which the loss caused by damage caused by the shoots and soft seedlings from the seed pods being eaten by the shellfish is eliminated or suppressed.

  In the second aspect of the invention, the sowing work part is fed out from the tank to the sowing work unit, and the fed soy seed is dropped from the discharge port, and the soot seed from the discharge port is freely dropped directly below or substantially directly below the discharge port. And a drop supply path for dropping and supplying to the basket.

  If the soot discharged from the feeding mechanism touches the path wall or the like in the middle of reaching the soot, the soot will be scattered in the middle of the path and easily fall out of the soot. According to the second aspect of the invention, the seed pod discharged from the feeding mechanism can be dropped into the cocoon without touching the path wall. It is easy to avoid damage.

  In the third aspect of the invention, the saddle solid is constituted by a grounded float.

  According to the third aspect of the present invention, it is possible to avoid soaking the seeding site in water with a simple structure in which an upright function is provided in the grounded float, and to avoid damage caused by shellfish at low cost.

It is a side view which shows the whole seeding machine for paddy fields. It is a top view which shows the whole seeding machine for paddy fields. It is a rear view which shows a sowing apparatus. It is a top view which shows the working part of a sowing apparatus. It is a side view which shows a sowing operation part. It is a bottom view which shows a heel solid. It is a VII-VII cross-sectional arrow view of FIG. It is explanatory drawing which shows the field after sowing work. It is a vertical side view which shows a feeding mechanism. It is a side view which shows the groove cutter in a descent | fall use position. It is a side view which shows the groove cutter in a raise storage position. It is the schematic which shows the operating device of the groove cutter in the seeder for paddy fields provided with the 1st another implementation structure. It is a top view which shows the grooving machine in the seeder for paddy fields provided with the 2nd another implementation structure. It is a top view which shows the grooving machine in the seeder for paddy fields provided with the 3rd another implementation structure. It is a bottom view which shows the basket solid provided with the comparison structure.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a side view showing an entire paddy seeding machine according to an embodiment of the present invention. FIG. 2 is a side view showing the entire paddy seeding machine according to the embodiment of the present invention. As shown in FIGS. 1 and 2, the paddy field seeder according to the embodiment of the present invention is a self-equipped with a pair of left and right front wheels 2 and 2 and a pair of left and right rear wheels 3 and 3 at the bottom of a body frame 1. It has a running body. A seeding device 10 is connected to the rear part of the self-propelled vehicle body.

  The self-propelled vehicle body includes an engine 4 provided at the front portion of the vehicle body, and is configured such that the front wheels 2 and the rear wheels 3 are driven by the driving force from the engine 4 to travel. The self-propelled vehicle body includes a driving unit 5 having a driving seat 5a provided at the rear part of the vehicle body, and is configured in a riding type so as to ride on the driving unit 5 for driving. The driving unit 5 includes a steering wheel 5b that is provided in front of the driver seat 5a and that steers the pair of left and right front wheels 2 and 2. A working space having a work step 6 and a handrail 7 is provided in a part extending from both sides and the rear side of the driver's seat 5a of the self-propelled vehicle body. The work space is used to perform operations such as seed supply to the sowing apparatus 10.

  The seeding device 10 is supported by a link mechanism 8 extended so as to swing up and down rearward from the rear portion of the vehicle body frame 1, and the link mechanism 8 is swung by an elevating cylinder 9, thereby It is possible to move up and down between a descending work state in which 12 descends to the field scene and comes into contact with the ground, and an elevating non-working state in which the saddle solids 11 and 12 are elevated from the field scene.

  The paddy seeding machine performs seeding work in which seeding B with iron coating is directly sown in a field by allowing the seeding device 10 to descend and moving the self-propelled vehicle body in a state where 6-row seeding is possible. It is.

The seeding device 10 will be described.
FIG. 3 is a rear view showing the sowing apparatus 10. As shown in FIGS. 1, 2, and 3, the seeding device 10 includes a seeding device frame 14 having a feed case 13 into which driving force from the engine 4 is input via a rotating shaft 13 a. A pair of left and right tanks 15, 15 aligned in the lateral direction of the vehicle body are supported on the seeding device frame 14. Three seeding operation parts 20 arranged in the lateral direction of the vehicle body are attached to the lower part of the left tank 15, and three seeding work parts 20 arranged in the lateral direction of the vehicle body are attached to the lower part of the right tank 15. At the lower part of the seeding device frame 14, three rod solids 11, 12 arranged in the lateral direction of the vehicle body are mounted.

  Each of the six seeding operation parts 20 has a feeding mechanism 21 having a feeding case 22 (see FIG. 9) whose upper end side is connected to the funnel part of the tank 15, and a lower narrow shape whose upper end side is connected to the lower part of the feeding case 22. The sowing tube 23 is provided.

  FIG. 9 is a vertical side view showing the feeding mechanism 21. As shown in FIG. 9, the feeding mechanism 21 of each of the six sowing work units 20 includes a feeding rotating body 24 that is rotatably supported inside a feeding case 22. The feeding rotary body 24 is driven to rotate by transmitting power from the feed case 13 to the rotary support shaft 25. The feeding rotator 24 includes a plurality of feeding recesses 24a provided at predetermined intervals in the rotation direction F on the circumferential surface, and the seed soot B supplied from the tank 15 inside the feeding case 22 is set by the feeding recess 24a by a set amount. The seeds B that are fed out intermittently and from the upper side to the lower side of the feeding rotary body 24 are dropped onto the discharge port 26 formed at the lower end of the feeding case 22, and the feeding case 22 is discharged from the discharge port 26. To the outside.

  The seed pod B discharged from the discharge port 26 descends by a natural drop in the drop supply path 27 formed by the sowing cylinder 23 and falls from the drop supply path 27 to the field. That is, the seed soot B from the discharge port 26 falls to a location directly below or substantially directly below the discharge port 26 in the field.

  As shown in FIGS. 3, 4, 5, 6, the three dredged solids 11, 12 are configured by a grounding float that is grounded on the mud surface of the field and sets the height of the sowing work unit 20 to the ground. The ground leveling bottom parts 11a and 12a comprised by the bottom part are provided.

  Of the three sowing solids 11, 12, the leftmost soot solid 11 includes two of the left sowing work unit 20 of the six sowing work units 20 and the sowing work unit 20 adjacent to the left sowing work unit 20. The two sowing work units 20 (hereinafter referred to as the two sowing work units 20 on the left side) are arranged so as to be grounded in front of the sowing cylinder 23 and behind the left rear wheel 3. Of the three sowing solids 11 and 12, the rightmost soot solid 11 includes two of the right sowing work unit 20 of the six sowing work units 20 and the sowing work unit 20 adjacent to the right sowing work unit 20. One sowing work unit 20 (hereinafter, referred to as two right sowing work units 20) is arranged to be grounded in front of the sowing cylinder 23 and behind the right rear wheel 3.

  FIG. 6 is a bottom view showing the saddle solid 11 at the left end and the right end. 7 is a cross-sectional view taken along the line VII-VII in FIG. As shown in FIGS. 4-7, the drainage groove 30 is formed in the horizontal width direction center part of the leveling bottom part 11a of the vertical solid body 11 of the left end and the right end, and it stands in the site | part of the both horizontal end side of the leveling bottom part 11a. A recessed portion 31 is formed. The pair of left and right upright recessed portions 31, 31 are formed by being distributed to portions located on both lateral sides of the leveling bottom portion 11a after passing the rear wheel T (see FIG. 4). A pair of left and right vertical recessed portions 31, 31 is provided with an opening 31 a facing forward of the vehicle body.

  The left end and right end saddle body 11 introduces the muddy water located in the front into the drainage groove 30 so that it does not easily flow into the vertical recessed portion 31 and guides the rear wheel 3 behind the rear wheel 3 while guiding it to the rear of the saddle body 11. Move. The vertical solid body 11 at the left end and the right end causes the vertical recessed portion 31 to act on the grounded mud portion. The left end and right end saddle solid 11 further takes in the mud pushed to the side by the rear wheel 3 located in the front from the opening 31a into the upright recessed portion 31, and the upright recessed portion 31 acts on the taken in mud. Let As a result, the leftmost and rightmost culm solids 11 form the culm A (see FIG. 8) in the field where seeding is performed by the two sowing units 20 on the left and right sides.

  FIG. 15 is a bottom view showing a cage solid 60 having a comparative structure. In the eaves solid body 60 provided with the comparison structure, the eaves recessed portion 61 is formed in a portion of the leveling bottom portion 60a that is located T after passing the rear wheel. The vertical recess 61 is eccentric with respect to the rear wheel 3 in the lateral direction. In the saddle solid 60, since the upright portion is erected in a portion of the farm scene where the indentation due to the passage of the rear wheel 3 is likely to occur, it is difficult to form a high height ridge. On the other hand, the left and right saddle solids 11 shown in FIGS. 4, 6, and 7 are portions located on the lateral side of the rear wheel T after passing the rear wheel in the farm scene, and are recessed due to the passage of the rear wheel 3. Since the erection is performed at a site where it is difficult to generate, a ridge having a high height is formed.

  Among the three sowing solids 11, 12, the central soot solid 12 includes two sowing operations between the two left sowing working units 20 and the two right sowing working units 20 of the six sowing working units 20. It arrange | positions so that it may earth | ground in front of the sowing cylinder 23 of the part 20 (henceforth the two seeding working parts 20 of center). A pair of left and right vertical recessed portions 32, 32 are formed on the leveling bottom 12a of the central vertical solid 12. The center culvert solid 12 causes the ridge A recessed portion 32 to act on the grounded mud portion, so that the culm A (see FIG. 8) is placed at a place where seeding by the two seeding working units 20 is performed in the farm scene. Form.

  FIG. 8 is an explanatory diagram showing the field after the sowing work. As shown in FIGS. 4 and 8, the sowing apparatus 10 forms the cocoon A in the field scene by using the cocoon solids 11 and 12, and directly seeds the soot B on the formed cocoon A by the sowing operation unit 20. More specifically, the seed pod B is directly sown by the two sowing work units 20 on the two pods A formed by the tub solid 11 at the left end. The seed pod B is directly sown on the two pods A formed by the central culvert solid 12 by the two seeding operation parts 20 at the center. The seed pod B is directly sown on the two pods A formed by the culm solid 11 at the right end by the two sowing operation units 20 on the right side.

  Therefore, as shown in FIG. 8, in order to bring the field after sowing to the irrigated state, water W is accumulated between the ridges, and the sowing location in the pod A is not soaked in the water so that the sowing location can be obtained. It is easy to avoid the shellfish from moving.

  As shown in FIG. 1, a grooving device 40 is provided on one lateral side of the self-propelled vehicle body. The grooving device 40 forms an alum in an outer peripheral portion close to the cocoon in the field. Alum stores water and avoids the movement of shellfish to the inside of the field.

  As shown in FIGS. 1 and 10, the grooving device 40 is a grooving link mechanism that extends so as to swing up and down backward from the vehicle body frame 1 from a portion located laterally outside the driving unit step 5 d. 41 is supported. An operating arm 42 is extended upward from the vehicle body from a portion of the upper link 41a constituting the groove cutting link mechanism 41 located near the groove cutting device 40. A grip 42 a is provided at the extended end of the operation arm 42. The grip portion 42a is disposed near the driver seat 5a so as to be easily supported from the driver portion 5.

  FIG. 10 is a side view showing the groove cutter in the lowered use position. FIG. 11 is a side view showing the grooving device in the raised storage position. As shown in FIGS. 10 and 11, the groove cutter 40 can be moved up and down between the lowered use position and the raised storage position by swinging the groove cutting link mechanism 41 with the operation arm 42. The mounting height at which the lower end of the groove cutter 40 is positioned higher than the axle core 3a of the rear wheel 3 is set as the mounting height at the upper limit of the elevation adjustment range of the groove cutter 40.

  The operating arm 42 is provided with a plurality of positioning recesses 43 arranged in the axial direction. The grooving machine 40 is configured to be fixed at a mounting height that is adjusted up and down by locking the operation arm 42 to the base of the support column 7a of the handrail 7 by the positioning recess 43 selected from the plurality of positioning recesses 43. It is. A spring 44 connected to a lower link 41b constituting the grooving link mechanism 41 and a base portion of the operation arm 42 oscillates and urges the operation arm 42 forward around the pivot shaft 42b. It is comprised so that the latching with respect to the support | pillar 7a may be hold | maintained.

  As shown in FIG. 4, the distance D1 from the seeding line LO at the lateral outer end of the plurality of sowing lines L to the left and right center 40c of the groove cutting device 40 is ½ the distance D2 between the sowing lines. It is set to.

  As shown in FIG. 2, the lateral outer end of the self-propelled vehicle body is set by the lateral outer end of the handrail 7. The lateral outer end of the groove cutter 40 is located in the same or substantially the same position as the lateral outer end of the handrail 7 in the lateral direction of the self-propelled vehicle body.

  As shown in FIG. 1, the grooving device 40 is configured with a grooving link mechanism 41 so as to be positioned in front of the rolling support portion 8 a provided in the link mechanism 8. The rolling support part 8a of the link mechanism 8 supports the front end portion of the seeding device frame 14 so as to roll, and rolls the seeding device 10 with respect to the self-propelled vehicle body. The groove cutting device 40 is configured with a groove cutting link mechanism 41 so as to be positioned so as to overlap the rear wheel 3 in a side view of the vehicle body.

  As shown in FIG. 10, the support body 45 which supports the groove cutter 40, and the upper link 41a are connected via the pivot pin 45a. The positioning pin 46a engaged so as to slide and rotate in the arc-shaped long hole 46 provided in the support 45 is supported by the lower link 41b, and the groove cutter 40 and the support 45 are integrated. Further, the upper link 41a is configured to swing up and down around the axis of the pivot pin 45a within a swing range set by the long hole 46. A spring 47 connected over the support 45 and the lower link 41b oscillates the support 45 toward the lower side of the groove cutter 40.

  Therefore, when the groove cutter 40 collides with a fence or stone, the groove cutter 40 is lifted against the spring 47 by the operation force received by the collision, and damage or breakage of the groove cutter 40 can be prevented or suppressed. . Further, when the grooving device 40 is pulled out from the soil, if the positioning pin 46 a is in the middle of the long hole 46 due to the ground reaction force applied to the grooving device 40, The grounding reaction force received from the soil by the groove cutter 40 by being pressed into the soil can be pulled out with the assist force for pulling up the groove cutter 40 being operated.

[Another embodiment]
(1) FIG. 12 is a schematic view showing an operating device of the groove cutter 40 having the first different implementation structure. This operating device is linked to a hydraulic cylinder 50 that moves up and down the grooving link mechanism 41, a lifting detection mechanism 51 that detects the lifting and lowering of the link mechanism 8 with respect to the traveling vehicle body, and a control valve of the lifting detection mechanism 51 and the hydraulic cylinder 50. And a control device 52. The control device 52 includes an elevation control means 53. A changeover switch 54 is linked to the control device 52.

  The elevation control means 53 is controlled to be switched on based on an operation command from the switch 54 when the switch 54 is switched to the on position, and when the switch 54 is switched to the off position. Based on an operation command from the changeover switch 54, the switch is controlled to be turned off.

  When the raising / lowering control means 53 is controlled to be switched on, the grooving device 40 is operated so that the grooving device 40 is lifted in conjunction with the raising of the sowing device 10, and in conjunction with the lowering of the sowing device 10. Is controlled so as to switch the control valve of the hydraulic cylinder 50 based on the information detected by the elevation detection mechanism 51. The raising / lowering control means 53 is configured to stop the switching control of the control valve of the hydraulic cylinder 50 based on the detection information by the raising / lowering detection mechanism 51 when being controlled to be switched off. By switching the raising / lowering control means 53 to the OFF state, the grooving device 40 can be held in the raised storage position regardless of the lowering of the seeding device 10.

(2) FIG. 13 is a plan view showing a grooving device 40 in a paddy seeding machine equipped with a second alternative embodiment structure. In the seeding machine for paddy fields provided with the second separate implementation structure, the distance D1 from the sowing line LO at the lateral outer end of the plurality of sowing lines L to the left and right center 40c of the grooving device 40 is the distance between the sowing lines. The length is set to be longer than ½ of D2.

(3) FIG. 14 is a plan view showing a grooving device 40 in a paddy seeding machine equipped with a third alternative embodiment structure. In the paddy field seeder with the third different embodiment structure, the position of the groove cutter 40 in the working state is a position that is laterally separated from the grounded float 55 at the laterally outer end of the grounded floats. Is set.

(4) In the above-described embodiment, the example in which the saddle solid 11 positioned at T after passing the rear wheel and the saddle solid 12 not positioned after passing the rear wheel is provided separately. May be provided in an integrally formed state.

(5) In the above-described embodiment, the example in which the saddle solids 11 and 12 are configured by the grounding float is shown, but the saddle solid and the grounding float may be separately manufactured and provided.

(6) In the above-described embodiment, an example is shown in which the seed pod B coated with iron is directly seeded. However, the seed potato coated with calpa coating may be directly seeded.

(7) In the above-described embodiment, the example in which the lateral outer end of the groove cutter 40 is positioned at the same or substantially the same position as the lateral outer end of the handrail 7 in the lateral direction of the vehicle body is shown. When the lateral outer end of the self-propelled vehicle body is set by the lateral outer end of the boarding / alighting step 5c (see FIGS. 1 and 2), the lateral outer end of the groove cutter 40 It is good to comprise so that it may be located in the same or substantially the same position.

(8) In the above-described embodiment, the example in which the groove cutter 40 is configured to be positioned in front of the rolling support portion 8a of the link mechanism 8 is shown. However, two groove cutters indicated by two-dot chain lines in FIG. The rear grooving device 40 may be configured so as to be located behind the rolling support portion 8a.

(9) In the above-described embodiment, the example in which the groove cutter 40 is provided only on one lateral side of the self-propelled vehicle body is shown, but the groove cutter 40 may be provided on both lateral sides of the self-propelled vehicle body.

(10) In the above-described embodiment, the example in which the grooving device 40 is provided only on one lateral side of the self-propelled vehicle body is shown, but the support member of the grooving link mechanism 41 is provided on both lateral sides of the self-propelled vehicle body. The grooving link mechanism 41 may be replaced with left and right support members, and the grooving device 40 may be configured to be replaced on both sides of the self-propelled vehicle body.

(11) In the above-described embodiment, the example in which the grooving device 40 is configured to be raised and stored has been shown. However, the grooving link mechanism 41 is removed from the self-propelled vehicle body, and the grooving device 40 is coupled with the grooving link mechanism 41. You may comprise so that it may store inside a vehicle body. Moreover, you may comprise and implement so that the groove cutter 40 may be removed from the support body 45 and stored inside a vehicle body.

(12) As the mounting height at the lower limit of the raising / lowering adjustment range of the groove cutter 40, the groove cutter 40 such as the front groove cutter 40 of the two groove cutters 40 indicated by a two-dot chain line in FIG. The lower end is the height in the vicinity of the lower end of the rear wheel 3 and is set at a lower height than the lower end of the rear wheel 3, and the mounting height at the upper limit of the elevation adjustment range of the groove cutter 40 is set. As described above, it is advantageous to set a mounting height at which the lower end of the groove cutter 40 is positioned higher than the axle of the rear wheel 3.

(13) A fertilizer may be provided on the seeding device 10 or the self-propelled vehicle body.

(14) A groove cutting device for forming drainage grooves in the field and a groove fertilizer for supplying fertilizer to the field may be provided in a three-dimensional form.

  INDUSTRIAL APPLICABILITY The present invention can be used for a paddy seeding machine including a seeding device capable of 6-row sowing and a seeding device capable of sowing more than 5-row seeding or 7-row sowing.

3 rear wheel 10 sowing device 11 solid 3a 11a leveling bottom 15 tank 20 sowing work unit 21 feeding mechanism 26 discharge port 27 falling path 31 vertical recess 31a opening A 畝 B seed

Claims (3)

A self-propelled vehicle body having a rear wheel, and a seeding device connected to a rear portion of the self-propelled vehicle body;
Provided with a leveling bottom and a vertical solid body having a pair of left and right vertical recesses that are provided in a distributed manner in portions located on both sides of the leveling bottom after passing through the rear wheel and open to the front of the vehicle body ,
A seeder for paddy field comprising a pair of left and right seeding operation units for supplying seed seeds to the pair of left and right seeds formed by the seed solids in the seeding device.   A feeding mechanism for feeding seed pods from the tank to the sowing work unit and dropping the fed seed pods from the discharge port, and dropping the seed pods from the discharge port directly or almost directly below the discharge port by free fall to the pods. The seeding machine for paddy fields according to claim 1, further comprising a falling supply path for supplying.   The seeder for paddy fields according to claim 1 or 2, wherein the paddle solid is constituted by a grounded float.

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