JP3912783B2 - Rice transplanter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rice transplanter.
[0002]
[Problems to be solved by the invention]
Conventionally, Japanese Patent Laid-Open No. 2001-258343 as this type has an engine mounted on the front part of a driving type front wheel that is operated by steering and a driving type rear wheel that includes a driving type rear wheel. A hydrostatic continuously variable transmission that transmits power from the engine to the rear part of the traveling aircraft and a transmission case are arranged, and a driver's seat is arranged in the center of the traveling aircraft, and at the rear end of the traveling aircraft. On the other hand, a riding type rice transplanter in which a seedling planting apparatus is connected via a link mechanism that is driven up and down by a hydraulic cylinder is disclosed.
[0003]
After planting many seedlings using such a riding type rice transplanter, between the seedlings lined up to improve the drainage of the field, etc. Has been made.
[0004]
As a machine for forming a groove, a paddy field working machine disclosed in JP-A-6-237601 is known. This paddy field work machine is a paddy field work machine in which an elevating link mechanism provided at the rear part of a traveling machine body is connected to a work device for drainage groove formation instead of a seedling planting device. And a float linked to the control means of the hydraulic cylinder that drives the lifting / lowering link mechanism, and driving / controlling the lifting / lowering link mechanism based on the vertical displacement of the float to bring the work device to a predetermined height with respect to the field scene. A working depth adjuster that changes and adjusts the reference height of the float relative to the grooving plate is operably equipped from the driver seat of the traveling machine body.
[0005]
However, since such a paddy field work machine was performed after the rice planting work, it was necessary to perform two operations, a rice planting work and a groove forming work.
[0006]
Then, an object of this invention is to provide the rice transplanter which can solve the said problem and can form a groove | channel at the time of rice planting work.
[0007]
[Means for Solving the Problems]
The invention of claim 1 provides a seedling planting device via a link mechanism that is driven up and down with respect to the rear end portion of the traveling machine body, and the seedling planting device includes a seedling platform on which a mat-like seedling is placed, A planting arm provided at a lower portion of the seedling stand and arranged in parallel at a plurality of intervals in a direction crossing the front-rear direction of the traveling machine body, a float provided between the plurality of planting arms, and a groove cutting body, In rice transplanter equipped with
The grooving body comprises a rear grooving body and a front grooving body arranged in front of the grooving body, a rear grooving body is provided on a rear extension line of the front grooving body, and the rear grooving body Is a rice transplanter which is arranged in the vicinity of the float or in the vicinity of the float and between the planting arms.
[0008]
According to the structure of this Claim 1, the groove cutting body provided in the lower part side of the seedling planting apparatus simultaneously with planting of a seedling can form a groove in a field scene.
[0009]
The invention according to claim 2 is the rice transplanter according to claim 1, characterized in that horizontal plate portions are provided on the left and right sides of the grooved body.
[0010]
According to the second aspect of the present invention, the field scenes on both sides of the groove can be leveled horizontally by the horizontal plate portion.
[0011]
The invention according to claim 3 is the rice transplanter according to claim 1 or 2, characterized in that the grooved body has a triangular shape with a sharp planer front.
[0012]
According to the invention of claim 3, the groove can be formed reliably.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. As shown in an embodiment, an engine 4 is mounted on the front of a traveling machine body 3 having a driving type front wheel 1 operated by a steering 1A and a driving type rear wheel 2, and at the rear part of the traveling machine body 3. A hydraulic continuously variable transmission 5 to which power from the engine 4 is transmitted and a transmission case 6 are arranged, and a driving seat 7 is arranged in the center of the traveling machine body 3 with respect to the rear end of the traveling machine body 3. A seedling planting apparatus 10 is connected through a link mechanism 9 that is driven up and down by a hydraulic cylinder 8 to constitute a riding type rice transplanter. In addition, 11 is an operation lever which performs raising / lowering control of the seedling planting apparatus 10 and turning on / off of the seedling planting operation.
[0014]
The seedling planting device 10 includes a seedling stage 13 on which the mat-like seedling W is placed, a pair of left and right transmission cases 14 to which power from the transmission shaft 12 that transmits power from the transmission case 6 to the seedling planting device 10 is transmitted. A rotary case 16 that rotates with the power transmitted from the transmission case 14 via the chain case 15, and a planting arm 17 that is provided in pairs on the rotary case 16 are provided. And at the time of work, the planting arm 17 cuts out the seedlings one by one from the lower end of the mat-like seedling W placed on the seedling placing stand 13 and plantes them 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 disposed in the center and a pair of left and right side floats 18S disposed on both sides of the center float 18C. In the embodiment, it is configured for eight-row planting, and the planting arm 17 is arranged in parallel at a plurality of intervals in a direction intersecting with the front-rear direction of the traveling machine body 3, and after the center float 18C. First and second planting arms 17A and 17B arranged on both sides of the side, 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 disposed on both sides and the center of the float 18S are provided.
[0015]
The link mechanism 9 is formed by connecting a single top link 9T and the rear ends of a pair of left and right lower links 9L with vertical links 9V. The seedling planting device 10 is connected and supported in a freely rolling manner.
[0016]
Further, a rear groove 21 is provided on the bottom surface of the center float 18C, and a front groove 22 is provided in front of the rear groove 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 interval between the first planting arm 17A and the second planting arm 17B. Yes.
[0017]
The rear grooving body 21 has a triangular bottom shape with a sharp front, and a bottom bottom 21A is formed so that the center line passing through the tip gradually becomes deeper downward and backward. Further, a horizontal plate portion 21B is formed on both left and right sides of the ship bottom-like bottom portion 21A, and the side surface of the ship bottom-like bottom portion 21A and the horizontal plate portion 21B are continuous by a smooth surface-like continuous portion 21C. A reinforcing member (not shown) such as wood is provided inside the upper surface of the bottom 21A.
[0018]
The front grooving body 22 has a triangular shape with a plane sharpened at the front, and forms a bottom 22A of a bottom so that the center line passing through the tip gradually becomes deeper downward and downward. Further, a horizontal plate portion 22B is formed on both the left and right sides of the ship bottom-like bottom portion 22A, and the side surface of the ship bottom-like bottom portion 22A and the horizontal plate portion 22B are continuous by a smooth surface-like continuous portion 22C. The lower end of the link arm 24 is pivotally 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, and the upper part thereof is A spring 25 is connected to the lower link 9L so as to be rotatable, and further as a biasing means for biasing the front grooved 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, for example, by being hooked on the axle 2A of the rear wheel 2. A plurality of mounting holes 24A are arranged in the longitudinal direction on the upper end side of the link arm 24, and one of these holes is selectively connected to the lower link 9L so as to be rotatable. When the rice planting operation is performed while traveling on the traveling machine body 3, the front grooving body 22 receives resistance by the soil in the field and moves backward. At this time, the horizontal plate part 22B and the horizontal plate part 21B are In addition, the rear portion of the front groove member 22 is in contact with the front portion of the rear groove member 21.
[0019]
Also, as shown in FIGS. 3 to 5, the rear grooving body 21 is provided so that the axis of the rear grooving body 21 coincides with the extended line of the central axis Z of the front grooving body 22, and the maximum width W of the bottom bottom 22 </ b> A. (That is, the maximum length between the inner edges of the pair of left and right horizontal plate portions 22B) is formed smaller than the maximum width w of the ship bottom-like bottom portion 21A (that is, the maximum length between the inner edges of the pair of left and right horizontal plate portions 21B), Further, 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 ship bottom-like bottom portion 22A is formed substantially the same as the maximum depth y of the ship bottom-like bottom portion 21A. Furthermore, the maximum widths W and w of the ship bottom-like bottom portions 22A and 21A are formed to be smaller than the inner space between the first and second planting arms 17A and 17B. At the time of groove formation, when the front grooved body 22 receives the resistance of the soil and moves slightly rearward together with the link arm 24, one point toward the rear of the inner edge of the pair of left and right horizontal plate portions 22B. A virtual line Z ′ indicated by a chain line can pass through the portion of the maximum length of the rear edge of the inner edge of the pair of left and right horizontal plate portions 21B or the vicinity thereof.
[0020]
Next, the operation of the above configuration will be described. By sitting on the driver's seat 7 and starting the engine 4, the power is transmitted to the rear wheels 2 to move forward. When the operation lever 11 is operated, the seedling planting device 10 is lowered and the seedling planting operation is started through the link mechanism 9 that is driven up and down by the hydraulic cylinder 8. In the seedling planting operation, seedling arms 17 cut out seedlings one by one from the lower end of the mat-like seedling W placed on the seedling mount 13 and plant them in the field. 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 farm scene 31 and support the seedling planting device 10 on the farm scene 31. Further, the front grooving body 22 receives resistance from the soil in the field and slightly recedes against the spring and is disposed in the vicinity of the center float 18C, and its rear part approaches the front part of the rear grooving body 21 so that the front grooving body 22 The body 22 and the rear grooving body 21 are integrated as shown in FIG. Then, a groove 32 having a triangular cross section is formed in the field scene 31 by the ship bottom-like bottom portion 22A of the front groove cutting body 22. Further, the horizontal scenes 31 on both sides of the groove 32 are leveled by the horizontal plate portion 22B, and the groove 32 and the horizontal farm scene 31 are connected by a smooth surface by the continuous portion 22C. Further, the surface of the groove 32 is traced by the bottom portion 21A of the bottom grooved body 21 so that the groove 32 is further enlarged and its shape is not collapsed. Further, the horizontal plate portion 21B and the continuous portion 21C are traced again so that the shape of the groove 32 is not collapsed, by tracing the surface formed by the horizontal plate portion 22B and the continuous portion 22C. Since the groove 32 is formed between the first and second planting arms 17A and 17B, no seedling is planted in the groove 32.
[0021]
As mentioned above, in the said embodiment, in the rice transplanter which provided the seedling planting apparatus 10 in the rear-end part of the traveling body 3, the front and rear groove cut bodies 22 and 21 are provided on the lower side of the seedling planting apparatus 10. The groove cut bodies 22 and 21 provided on the lower side of the seedling planting device 10 at the same time as the seedling planting can form the groove 32 in the field scene 31, so that the seedling planting can be performed in one operation. Attaching and forming a groove can be performed.
[0022]
Further, by providing the groove cut bodies 22 and 21 on the center float 18C, the groove 32 can be formed in the farm scene 31 in front of the planting arm 17, and the groove 32 is formed immediately before planting the seedling. Therefore, seedlings can be planted in a state where the grooves 32 are not deformed.
[0023]
Further, the center float 18C is provided with the rear groove body 21 and the front groove body 22 is provided in front of the rear groove body 21, so that the front groove body 22 can be used for the field by planting the seedlings. After the groove 32 is formed on the surface 31 in front of the planting arm 17, the groove 32 is formed by tracing the groove 32 again by the rear groove member 21, so that the groove 32 is not deformed. It can be reliably formed.
[0024]
In addition, the rear groove body 21 is provided on the rear extension line of the front groove body 22, and the front groove body 22 and the rear groove body 21 are adjacent to the first and second plantings. Since it is arranged in front of the arms 17A and 17B, the groove 31 formed by the front groove cutting body 22 can form the groove 32 again immediately after the rear groove cutting body 21. For this reason, there is no interruption in the formation of the groove 32 by the front groove body 22 and the formation of the groove 32 by the rear groove body 21, and the groove 31 can be formed continuously and reliably. Also, seedlings are not planted in the grooves 32.
[0025]
In addition, when the groove is formed, when the front grooved body 22 receives the resistance of the soil and moves slightly rearward together with the link arm 24, one point toward the rear of the inner edge of the pair of left and right horizontal plate portions 22B. Since the virtual line Z ′ indicated by the chain line can pass through the portion of the maximum length of the rear edge of the inner edge of the pair of left and right horizontal plates 21B or the vicinity thereof, it is formed by the front grooved body 22 The groove 32 can be further enlarged by the rear groove 21 and the shape can be adjusted by tracing the groove 32.
[0026]
The present invention is not limited to the above-described embodiment. For example, the rear groove 21 may be provided in the vicinity of the center float 18C instead of being provided directly on the center float 18C. Various modifications can be made within.
[0027]
【The invention's effect】
The invention of claim 1 provides a seedling planting device via a link mechanism that is driven up and down with respect to the rear end portion of the traveling machine body, and the seedling planting device includes a seedling platform on which a mat-like seedling is placed, A planting arm provided at a lower portion of the seedling stand and arranged in parallel at a plurality of intervals in a direction crossing the front-rear direction of the traveling machine body, a float provided between the plurality of planting arms, and a groove cutting body, In rice transplanter equipped with
The grooving body comprises a rear grooving body and a front grooving body arranged in front of the grooving body, a rear grooving body is provided on a rear extension line of the front grooving body, and the rear grooving body Is a rice transplanter characterized in that it is arranged in the vicinity of the float or in the vicinity of the float and between the planting arms, and it is possible to plant seedlings and form grooves in one operation. it can.
[0028]
The invention according to claim 2 is the rice transplanter according to claim 1, wherein horizontal plate portions are provided on both the left and right sides of the groove cut body, and the horizontal scenes on the both sides of the groove are Can be leveled horizontally.
[0029]
A third aspect of the present invention is the rice transplanter according to the first or second aspect, wherein the grooved body has a triangular shape with a planar shape sharpened at the front, and the groove can be reliably formed. .
[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 essential parts showing an embodiment of the present invention.
FIG. 4 is a plan view front view of the main part showing an embodiment of the present invention.
FIG. 5 is a front view of a main part showing an embodiment of the present invention.
[Explanation of symbols]
3 traveling machine body 9 link mechanism 10 seedling planting device 13 seedling placing stand 17 planting arm 18 float 21 rear groove body (groove body)
22 Front grooved body (grooved body)
W Matt seedling

Claims (3)

A seedling planting device is provided via a link mechanism that is driven up and down with respect to the rear end portion of the traveling machine body. The seedling planting device is provided on a seedling platform on which a mat-like seedling is placed and a lower portion of the seedling platform. a planting arm of juxtaposed be at a plurality interval in a direction intersecting the longitudinal direction of the vehicle body, a float provided between said plurality of planting arm, in rice transplanters having a groove Setsutai,
The grooving body comprises a rear grooving body and a front grooving body arranged in front of the grooving body, a rear grooving body is provided on a rear extension line of the front grooving body, and the rear grooving body Is arranged in the vicinity of the float or in the vicinity of the float and between the planting arms.   The rice transplanter according to claim 1, wherein horizontal plate portions are provided on both left and right sides of the grooved body.   The rice transplanter according to claim 1 or 2, characterized in that the grooved body has a triangular shape with a planar shape sharpened at the front.

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