JP2004033076A - Rice transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rice transplanter with which furrows are formed during a rice planting operation. <P>SOLUTION: In the rice transplanter equipped with a seedling planting apparatus 10 at the rear end of a traveling machine body 3, a front and a rear furrow opening bodies 22 and 21 are installed at the lower part of the seedling planting apparatus 10 and the rear furrow opening body 21 is arranged behind the front furrow opening body 22. The furrow 32 is formed on a field surface 31 by the furrow opening bodies 22 and 21 arranged at the lower part side of the seedling planting apparatus 10 simultaneously with seedling planting and the seedling planting and the furrow formation are carried out by one operation. A furrow 31 formed by the front furrow opening body 22 is traced by the furrow opening body 21 into the furrow 32 with reforming the furrow 32. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a rice transplanter.
[0002]
[Problems to be solved by the invention]
Conventionally, as this kind, Japanese Patent Application Laid-Open No. 2001-258343 discloses that an engine is mounted on a front part of a traveling body provided with a drive-type front wheel that is steered and a drive-type rear wheel. A hydrostatic continuously variable transmission in which power from the engine is transmitted to the rear of the traveling body, and a transmission case are arranged.Also, a driver's seat is arranged in the center of the traveling body, and at the rear end of the traveling body. On the other hand, a riding type rice transplanter in which a seedling planting device is connected via a link mechanism driven up and down by a hydraulic cylinder is disclosed.
[0003]
After planting seedlings in multiple rows using such a riding-type rice transplanter, between the seedlings arranged in order to improve drainage and the like in the field, for example, using a separate machine to ditch Is formed.
[0004]
As a machine for forming a groove, a paddy field working machine disclosed in JP-A-6-237601 is known. This paddy field working machine is a paddy field working machine in which a lifting / lowering link mechanism provided at a rear portion of a traveling machine body is connected to a working device for forming a drainage ditch instead of a seedling planting device. And a float associated with control means of a hydraulic cylinder that drives the lifting link mechanism, and controls the driving of the lifting link mechanism based on the vertical displacement of the float to bring the working device to a predetermined height with respect to the field scene. A work depth adjuster configured to change and adjust a reference height of the float with respect to the groove cutting plate is provided so as to be operable from a driver seat of the traveling machine body.
[0005]
However, since such a paddy field working machine was performed after the rice transplanting operation, it was necessary to perform two operations, the rice transplanting operation and the groove forming operation.
[0006]
Therefore, an object of the present invention is to provide a rice transplanter capable of solving the above-described problems and forming a groove during rice transplanting work.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is a rice transplanter provided with a seedling planting device at a rear end portion of a traveling machine body, wherein a groove cutting body is provided below the seedling planting device.
[0008]
According to the configuration of the first aspect, the groove cutting body provided on the lower side of the seedling planting apparatus can form a groove in the field scene simultaneously with planting of the seedling.
[0009]
According to a second aspect of the present invention, a seedling placement device is provided via a link mechanism that is driven up and down with respect to a rear end of the traveling machine body, and the seedling placement device includes a seedling mounting table on which mat-type seedlings are placed. In a rice transplanter including a planting arm, which is provided at a rear lower portion of a seedling mounting stand and is arranged side by side at a plurality of intervals in a direction intersecting the front-rear direction of the traveling machine body, and a float, the vicinity of the float or the float A rice transplanter characterized by providing a grooved body in the rice transplanter.
[0010]
According to the configuration of the second aspect, the float or the groove-cut body provided in the vicinity of the float can form a groove in front of the planting arm in the field scene simultaneously with the planting of the seedling. A seedling planting device is provided via a link mechanism that is driven up and down with respect to the rear end of the traveling machine body, and the seedling planting device is provided with a seedling stage on which mat-shaped seedlings are placed and a seedling stage after the seedling stage. A rice planting machine having a planting arm provided at a lower side portion and arranged in parallel in a direction intersecting the front-rear direction of the traveling body at a plurality of intervals, and a float, wherein a rear groove cut body is provided near the float or the float. And a front groove cutting body is provided in front of the rear groove cutting body.
[0011]
According to the third aspect of the present invention, a groove is formed in the field scene in front of the planting arm by the front groove cutting body at the same time as the planting of the seedling, and then the groove is traced again by the rear groove cutting body. Form a groove.
[0012]
The invention according to claim 4 is characterized in that the rear groove cutting body is provided on a rear extension line of the front groove cutting body, and the front groove cutting body and the rear groove cutting body are arranged between the adjacent planting arms. The rice transplanter according to claim 3, which is arranged forward.
[0013]
According to this configuration, the groove formed by the front groove cutting body is formed between the adjacent planting arms, and the groove can be formed again by the rear groove cutting body.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. As shown in one embodiment, an engine 4 is mounted on a front part of a traveling body 3 having a driving type front wheel 1 operated by a steering wheel 1A and a driving type rear wheel 2, and a rear part of the traveling body 3 is provided. A hydraulic continuously variable transmission 5 to which power from the engine 4 is transmitted, and a transmission case 6 are arranged. Also, a driving seat 7 is arranged at the center of the traveling body 3, and the rear end of the traveling body 3 A seedling planting device 10 is connected via a link mechanism 9 driven up and down by a hydraulic cylinder 8 to form a riding type rice transplanter. Reference numeral 11 denotes an operation lever for raising and lowering the seedling planting apparatus 10 and turning on and off the seedling planting operation.
[0015]
The seedling planting apparatus 10 includes a seedling table 13 on which a mat-shaped seedling W is placed, a pair of right and left transmission cases 14 to which power from a transmission shaft 12 that transmits power from the transmission case 6 to the seedling planting apparatus 10 is provided. The rotary case 16 includes a rotary case 16 that rotates with power transmitted from the transmission case 14 via the chain case 15, and a pair of planting arms 17 provided in the rotary case 16. Then, at the time of work, the planting arm 17 cuts out the seedlings one by one from the lower end of the mat-shaped seedling W placed on the seedling placing stand 13 and plants the seedlings in the field scene. Further, in the seedling planting apparatus 10, a float 18 as a grounding body is provided below the rotary case 16. The float 18 includes a center float 18C arranged at the center, and a pair of left and right side floats 18S arranged on both sides of the center float 18C. In the embodiment, the planting arm 17 is configured for eight-row planting, and the planting arms 17 are arranged side by side at a plurality of intervals in a direction intersecting the front-rear direction of the traveling machine body 3. The first and second planting arms 17A and 17B arranged on both sides, the third and fourth and fifth planting arms 17C, 17D and 17E arranged on both sides and the center of one side float 18S, and the other side. Sixth, seventh, and eighth planting arms 17F, 17G, and 17H arranged on both sides and the center of the float 18S are provided.
[0016]
The link mechanism 9 is formed by connecting the rear ends of a single top link 9T and a pair of left and right lower links 9L with a vertical link 9V. The seedling planting device 10 is connected and supported so as to freely roll.
[0017]
Further, a rear grooved body 21 is provided on the bottom surface of the center float 18C, and a front grooved body 22 is provided in front of the rear grooved body 21. The rear grooved body 21 and the front grooved body 22 are arranged in a straight line in the front-rear direction, and are arranged in front of the space between the first planting arm 17A and the second planting arm 17B. I have.
[0018]
The rear grooved body 21 is formed in a triangular shape having a sharp front surface, and forms a bottom 21 </ b> A so as to gradually become deeper downward and rearward on a center line passing through the front end. Further, a horizontal plate portion 21B is formed on both left and right sides of the bottom 21A, and the side surface of the bottom 21A and the horizontal plate 21B are connected by a smooth continuous portion 21C. A reinforcing member (not shown) such as wood is provided inside the upper surface of the bottom 21A.
[0019]
The front groove cut body 22 is formed in a triangular shape having a sharp front surface, and forms a ship bottom-shaped bottom portion 22A so as to be gradually deeper rearward and downward on a center line passing through the front end. Further, horizontal plates 22B are formed on both left and right sides of the bottom 22A, and the side surface of the bottom 22A and the horizontal plate 22B are connected by a smooth continuous portion 22C. The lower end of the link arm 24 is rotatably connected to a bracket 23 erected on the front grooved body 22 so that the front grooved body 22 can move in the front-rear direction. The lower link 9L is rotatably connected to the lower link 9L, and further connected to a spring 25 as urging means for urging the front groove cut body 22 forward. The spring 25 has one end connected to the link arm 24 and the other end connected so as not to hinder the rotation of the axle 2A by, for example, hooking the axle 2A of the rear wheel 2 or the like. A plurality of mounting holes 24A are provided in the upper end side of the link arm 24 in the longitudinal direction, and one of these holes is selectively rotatably connected to the lower link 9L. In the rice transplanting operation by traveling the traveling machine body 3, the front grooved body 22 moves backward due to the resistance of the soil of the field, but at this time, the horizontal plate portion 22B and the horizontal plate portion 21B are moved in the field scene. At the same time, the rear part of the front grooved body 22 is in contact with the front part of the rear grooved body 21.
[0020]
As shown in FIGS. 3 to 5, the rear groove 21 is provided so as to coincide with the axis of the central axis Z of the front groove 22, and the maximum width W of the bottom 22 A of the ship bottom is also provided. (That is, the maximum length between the inner edges of the pair of left and right horizontal plate portions 22B) is smaller than the maximum width w of the bottom 21A (that is, the maximum length between the inner edges of the pair of left and right horizontal plate portions 21B), The maximum width X between the outer edges of the horizontal plate portion 22B is smaller than the maximum width x between the outer edges of the horizontal plate portion 21B. The maximum depth Y of the bottom 22A is substantially the same as the maximum depth y of the bottom 21A. Further, the maximum widths W, w of the ship bottom-like bottom portions 22A, 21A are formed smaller than the space between the first and second planting arms 17A, 17B. When the groove is formed, when the front groove cut body 22 is slightly moved rearward together with the link arm 24 due to the resistance of the soil, one point toward the rear of the inner edge of the pair of left and right horizontal plate portions 22B. An imaginary line Z ′ indicated by a chain line can pass through or near the maximum length at the rear portion of the inner edge of the pair of left and right horizontal plates 21B.
[0021]
Next, the operation of the above configuration will be described. By starting the engine 4 while sitting on the driver's seat 7, the power is transmitted to the rear wheels 2 to move forward. Then, by operating the operation lever 11, the seedling planting device 10 is lowered via the link mechanism 9 driven up and down by the hydraulic cylinder 8, and the seedling planting operation is started. In the seedling planting operation, the planting arm 17 cuts out the seedlings one by one from the lower end of the mat-shaped seedling W placed on the seedling placing stand 13 and plants the seedlings in the field scene. At this time, the center float 18C and the pair of left and right side floats 18S arranged on both sides of the center float 18C slide on the field scene 31 and support the seedling planting apparatus 10 on the field scene 31. Also, the front grooved body 22 receives the resistance from the soil of the field and retreats a little against the spring and is disposed near the center float 18C, and the rear part approaches the front part of the rear grooved body 21 and the front grooved part 21 The body 22 and the rear grooving body 21 are integrated continuously as shown in FIG. Then, a groove 32 having a triangular cross section is formed in the field scene 31 by the bottom-like bottom portion 22A of the front groove cut body 22. The horizontal plate portion 22B levels the field scenes 31 on both sides of the groove 32 horizontally, and the continuous portion 22C connects the groove 32 and the horizontal field scene 31 with a gentle surface. Further, the groove 32 is further enlarged so as to trace the surface of the groove 32 by the bottom 21A of the rear grooved body 21 so that the shape thereof does not collapse. Further, the horizontal plate portion 21B and the continuous portion 21C trace the surface formed by the horizontal plate portion 22B and the continuous portion 22C again so that the shape of the groove 32 does not collapse. Since the groove 32 is formed between the first and second planting arms 17A and 17B, seedlings are not planted in the groove 32.
[0022]
As described above, in the embodiment, in the rice transplanter having the seedling planting device 10 provided at the rear end of the traveling machine body 3, the front and rear groove cut bodies 22, 21 are provided below the seedling planting device 10. The grooves 32, 21 provided on the lower side of the seedling planting device 10 can form the grooves 32 in the field scene 31 at the same time as the seedlings are planted. Addition and formation of a groove can be performed.
[0023]
Further, by providing the groove cut bodies 22 and 21 in the center float 18C, a groove 32 can be formed in the field scene 31 in front of the planting arm 17, and the groove 32 is formed immediately before planting of the seedling. Therefore, seedlings can be planted without deformation of the groove 32.
[0024]
Further, by providing the center groove 18C with the rear groove cutting body 21 and the front groove cutting body 22 in front of the rear groove cutting body 21, the front groove cutting body 22 is used at the same time as the seedlings are planted. After the groove 32 is formed on the surface 31 in front of the planting arm 17, the groove 32 is formed by following the groove 32 again by the rear groove cutting body 21, so that the groove 32 is not deformed. It can be formed reliably.
[0025]
Moreover, the rear groove cutting body 21 is provided on a rear extension line of the front groove cutting body 22, and the front groove cutting body 22 and the rear groove cutting body 21 are adjacent to the first and second planting pieces. Being located forward between the arms 17A, 17B, the groove 31 formed by the front grooved body 22 can again form the groove 32 immediately after by the rear grooved body 21. For this reason, there is no interruption in the course of the formation of the groove 32 by the front groove cutting body 22 and the formation of the groove 32 by the rear groove cutting body 21, and the groove 31 can be reliably formed continuously. Also, seedlings are not planted in the grooves 32.
[0026]
In addition, at the time of forming the groove, when the front groove cut body 22 slightly moves rearward together with the link arm 24 due to the resistance of the soil, one point toward the rear of the inner edge of the pair of left and right horizontal plate portions 22B. Since the imaginary line Z ′ indicated by the chain line can pass through the vicinity of the maximum length at the rear portion of the inner edge of the pair of left and right horizontal plates 21B or in the vicinity thereof, the imaginary line Z ′ is formed by the front grooved body 22. The groove 32 can be further slightly enlarged by the rear groove cut body 21 and the shape can be adjusted by tracing the groove 32.
[0027]
The present invention is not limited to the above-described embodiment. For example, the rear groove cutting body 21 may be provided not in the center float 18C but in the vicinity of the center float 18C. Within the above, various modifications are possible.
[0028]
【The invention's effect】
According to the first aspect of the present invention, in a rice transplanter provided with a seedling planting device via a link mechanism that is driven up and down with respect to a rear end portion of the traveling machine body, a groove-cut body is provided below the seedling planting device. A rice transplanter characterized by the following features: seedlings can be planted and grooves can be formed in a single operation.
[0029]
According to a second aspect of the present invention, a seedling placement device is provided via a link mechanism that is driven up and down with respect to a rear end of the traveling machine body, and the seedling placement device includes a seedling mounting table on which mat-type seedlings are placed. In a rice transplanter including a planting arm, which is provided at a rear lower portion of a seedling mounting stand and is arranged side by side at a plurality of intervals in a direction intersecting the front-rear direction of the traveling machine body, and a float, the vicinity of the float or the float It is a rice transplanter characterized by providing a grooving body, so that seedlings can be planted and grooves formed in one operation, and since grooves are formed immediately before planting seedlings, Seedlings can be planted without any deformation of the grooves.
[0030]
The invention according to claim 3 provides a seedling planting device via a link mechanism that is driven up and down with respect to the rear end of the traveling machine body, wherein the seedling planting device has a seedling mounting table on which mat-shaped seedlings are placed, In a rice transplanter including a planting arm, which is provided at a rear lower portion of a seedling mounting stand and is arranged side by side at a plurality of intervals in a direction intersecting the front-rear direction of the traveling machine body, and a float, the vicinity of the float or the float A rice transplanter characterized by providing a rear groove cutting body at the front and a front groove cutting body at the front of the rear groove cutting body, wherein planting seedlings and forming grooves in one operation. In addition, since the rear groove cut body is provided on the float or in the vicinity of the float and is formed immediately before planting of the seedling, the seedling can be planted without deformation of the groove. In addition, since the groove is formed by the front grooved body after the groove is formed by the front grooved body, the groove can be surely formed without being deformed.
[0031]
The invention according to claim 4 is characterized in that the rear groove cutting body is provided on a rear extension line of the front groove cutting body, and the front groove cutting body and the rear groove cutting body are arranged between the adjacent planting arms. 4. The rice transplanter according to claim 3, wherein the groove is formed at the front, and the groove is formed by the front groove cutting body and the groove by the rear groove cutting body. Can be. Also, no seedlings are planted in the grooves.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of the present invention.
FIG. 2 is a plan view showing an embodiment of the present invention.
FIG. 3 is a perspective view of a main part showing one embodiment of the present invention.
FIG. 4 is a plan view front view of a main part showing one embodiment of the present invention.
FIG. 5 is a front view of a main part showing one embodiment of the present invention.
[Explanation of symbols]
3 running machine 9 link mechanism 10 seedling planting device 13 seedling mounting base 17 planting arm 18 float 21 rear grooved body (grooved body)
22 Front grooving body (grooving body)
W matted seedling

Claims (4)

A rice transplanter provided with a seedling planting device at a rear end of a traveling machine body, wherein a groove-cut body is provided below the seedling planting device. A seedling planting device is provided via a link mechanism that moves up and down with respect to the rear end of the traveling machine body. A rice planting machine, comprising: a planting arm arranged side by side at a plurality of intervals in a direction intersecting the front-rear direction of the traveling machine body; and a float provided between the plurality of planting arms. A rice transplanter characterized by providing a grooved body in the vicinity of. A seedling planting device is provided via a link mechanism that moves up and down with respect to the rear end of the traveling machine body. A rice planting machine, comprising: a planting arm arranged side by side at a plurality of intervals in a direction intersecting the front-rear direction of the traveling machine body; and a float provided between the plurality of planting arms. A rear groove cutting body is provided in the vicinity of the front groove cutting body, and a front groove cutting body is provided in front of the rear groove cutting body. The front groove cutting body is provided on a rear extension line of the front groove cutting body, and the front groove cutting body and the rear groove cutting body are arranged forward between adjacent planting arms. The rice transplanter according to claim 3, characterized in that:

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