JP6975459B2 - Seedling transplanter - Google Patents

Description

The present invention relates to a seedling transplanting machine configured to cut a groove at the same time as seedling transplanting to a field.

As a background technique, the rice transplanter described in Patent Document 1 is exemplified. As shown in FIG. 10, in this rice transplanter, a seedling planting device 110 is provided at the rear end of the traveling machine 103, and the seedling planting device 110 includes a seedling loading table 113 on which mat-shaped seedlings are placed. A planting arm 117 provided at the lower part of the seedling stand 113 and juxtaposed at a plurality of intervals in a direction intersecting the front-rear direction of the traveling machine 103, and a float 118 provided between the plurality of planting arms 117. It is equipped with a grooving body and is configured to grooving at the same time as seedling transplanting to the field.

The groove cutting body is composed of a rear groove cutting body 121 and a front groove cutting body 122 arranged in front of the rear groove cutting body 121, and the rear groove cutting body 121 is provided on the rear extension line of the front groove cutting body 122. The rear groove cutting body 121 is located in the vicinity of the float 118 or the float 118, and anteriorly between the planting arms 117. The grooved bodies 121 and 122 have a gentle surface shape provided between the bottom-shaped bottom portions 121A and 122A, horizontal plate portions 121B and 122B provided on both left and right sides thereof, and the bottom-shaped bottom portion and the horizontal plate portions. The continuous portions 121C and 122C are provided. Further, the groove cut body has a triangular shape with a sharp front surface. Then, the groove cutting body forms a groove by the bottom of the ship and the continuous portion, and at the time of forming the groove, the field scene to be raised on both sides thereof is pressed by the horizontal plate portions on both the left and right sides and leveled horizontally. I am doing it.

Japanese Patent No. 3912783

However, the surface of the field is not horizontal in the first place, and a raised portion exists on the surface due to the wheel traces caused by the running of the rice transplanter. Especially during the planting work of the headland, if the raised portion due to the turning trace of the wheel is widely present on the surface of the field and the raised portion is higher than the upper surface of the horizontal plate portion, it cannot be leveled well. There are challenges.

In order to solve the above-mentioned problems, the seedling transplanting machine of the first invention is
It is equipped with a traveling machine configured to run freely in the field and a seedling planting section connected to the rear of the running machine.
The seedling planting section is provided with a plurality of planting claws arranged in rows at intervals in the left-right direction.
A seedling transplanting machine in which a grooving device is arranged between adjacent planted claws at at least one place.
The grooving device has a grooving body formed in a substantially V-shape in a plan view so as to have an apex angle portion in front in a plan view, and is substantially horizontal from the grooving body to both left and right sides on the upper side of the grooving body. It is provided with a downward horizontal surface portion provided so as to project from the horizontal surface portion, and a downward leveling surface portion extending substantially forward and diagonally upward from the horizontal plane portion.

According to this configuration, first, the raised portion of the field scene is leveled by the leveling surface portion, and then a groove is formed by the groove cutting body, and at the time of forming the groove, the raised portion is to be raised on both sides thereof. The field scene can be pressed horizontally by the horizontal plane portions on both the left and right sides. As described above, according to the seedling transplanting machine of the present invention, grooving can be performed at the same time as seedling transplanting, which leads to labor saving and can manage water entry and drainage immediately after planting in a short time. In addition, the grooves formed in the field reduce the running ripples on the water surface that occur during subsequent seedling transplanting, so even if transplanting at high speed, the effect on the seedlings immediately after planting the adjacent row is minimized. can do.

The seedling transplanting machine of the second invention is described in the first invention.
The embodiment in which the grooving device is provided on the rear extension line of the wheel of the traveling machine body is exemplified.

According to this configuration, the horizontal surface portion and the leveling surface portion can form a groove while leveling the traveling traces of the wheels in front of the horizontal surface portion.

As the seedling transplanting machine of the third invention, in the first or second invention.
Equipped with a pair of the grooving devices
The pair of grooving devices are arranged symmetrically with respect to the seedling planting portion.
Each of the grooving devices is configured to support the seedling planting portion when the seedling planting portion is in contact with the support surface by disposing the lower end thereof at a position lower than the lower end of the seedling planting portion. Is illustrated.

According to this configuration, the grooving device can be used as a stand for the seedling planting portion outside the field. Therefore, it is not necessary to provide a separate stand.

The seedling transplanting machine of the fourth invention is described in the third invention.
The grooving device has a support configured such that the upper end is connected to the seedling planting portion, the intermediate portion passes through substantially the center in the width direction of the grooving body, and the lower end is in contact with the support surface. The lower end portion of the support is provided, and the lower end portion thereof exemplifies an embodiment in which the lower end portion thereof is formed so as to extend in the front-rear direction of the traveling machine body in a bottom view.

According to this configuration, the support can act to form the deepest portion of the groove when traveling in the field, and can firmly support the seedling planting portion when used as a stand.

According to the seedling transplanting machine according to the present invention, it is possible to form a groove while leveling the raised portion of the field scene, which is an excellent effect.

It is a side view which shows the whole structure of the seedling transplanting machine which concerns on 1st Embodiment which embodied this invention. It is a front view which shows the main part of the seedling transplanting part in the same seedling transplanting machine. It is a top view which shows the positional relationship of the rear wheel, the grounding float, the planting claw and the grooving device of the seedling transplanting part. It is a figure which shows the groove cutting apparatus, (a) is a left side view, (b) is a front view, (c) is a bottom view. It is a perspective view which looked at the attachment structure to the seedling planting part of the grooving device from the front side. It is a perspective view which saw the mounting structure from the back side. It is a front view which shows the main part of the seedling transplanting part in the seedling transplanting machine which concerns on 2nd Embodiment which embodied this invention. It is a top view which shows the positional relationship of the rear wheel, the grounding float, the planting claw and the grooving device of the seedling transplanting part. It is a perspective view which looked at the attachment structure to the seedling planting part of the grooving device from the front side. It is a figure which shows the rice transplanter as a background technique, (a) is a plan view, (b) is a side view of a main part.

1 to 6 show the seedling transplanting machine 1 of the first embodiment which embodies the present invention, and the arrow F in each figure points to the front side of the machine body. As shown in FIGS. 1 to 3, the seedling transplanting machine 1 includes a traveling machine 4 configured to freely travel in a field by a pair of left and right front wheels 2 that can be steered and a rear wheel 3 of 6 left and right wheels. There is. The rear wheel 3 is composed of a pair of left and right main rear wheels 3A and auxiliary rear wheels 3B arranged on both sides of each main rear wheel 3A. In the traveling machine body 4, the driver's seat 5 is arranged in the central portion, the engine 6 for driving the front wheels 2 and the rear wheels 3 is mounted in the front portion, and the transmission 7 and the mission case 8 to transmit the power from the engine 6 are transmitted. Is located at the rear. A seedling planting portion 9 is connected to the rear of the traveling machine body 4 via a link mechanism 10 so as to be movable up and down, and a grooving device 20 is arranged in the seedling planting portion 9.

The seedling planting unit 9 includes four seedling planting devices 11 arranged in rows at regular intervals in the left-right direction, and powers the transmission case 13 via a transmission shaft 12 extending from the mission case 8. Further, power is transmitted from the transmission case 13 to the drive shaft 14 extending to the left and right, and each seedling planting device 11 is driven by the drive shaft 14. The pair of seedling planting devices 11 on the left and right sides of the seedling planting portion 9 are arranged line-symmetrically with respect to the rear extension line of the main rear wheel 3A of the traveling machine body 4. Further, each seedling planting device 11 is arranged on the rear extension line of the auxiliary rear wheel 3B of the traveling machine body 4.

The seedling planting device 11 includes a planting transmission case 21, a rotating case 22 rotatably supported on both the left and right sides of the planting transmission case 21, and a pair of planting claws 23 provided on the rotating case 22. It includes a grounding float 24 arranged on the lower side of the planting transmission case 21 and a seedling mounting table 25 arranged on the upper side of the planting transmission case 21.

The grooving device 20 is arranged symmetrically with respect to the seedling planting portion 9 by being arranged on the rear extension line of each main rear wheel 3A of the traveling machine body 4. Each grooving device 20 is attached to the outer periphery of the tubular body 26 in which the drive shaft 14 of the seedling planting portion 9 is rotatably incorporated via a mounting member 27. Further, each grooving device 20 is configured to support the seedling planting portion 9 when the seedling planting portion 9 is in contact with the support surface by disposing the lower end thereof at a position lower than the lower end of the seedling planting portion 9. ing.

The grooving device 20 has a grooving body 20A formed in a substantially V-shape in a plan view so as to have an apex angle portion forward in a plan view, and on the upper side of the grooving body 20A, both left and right sides from the grooving body. A downward horizontal surface portion 20B provided so as to project from the horizontal surface portion 20B, a downward leveling surface portion 20C extending substantially diagonally upward in front of the groove cutting body 20A from the horizontal plane portion 20B, and a support 20D extending in the vertical direction. It is equipped with. In the grooving body 20A, the front end edge 20E is formed in a forward inclined shape in a side view, and a deep and wide groove is gradually formed in the field as the grooving body 20A advances. The upper end of the support 20D is connected to the seedling planting portion 9, the intermediate portion passes through substantially the center in the width direction of the groove cutting body 20A, and the lower end is configured to be in contact with the support surface. The lower end portion of the support 20D is formed so as to extend in the front-rear direction of the traveling machine body 4 in a bottom view. The support 20D of this example is connected by a connecting member 20F (bolts and nuts in this example) so that the mounting height with respect to the mounting member 27 can be adjusted. As a result, the relative height of the groove cutting body 20A with respect to the grounding float 24 of the seedling planting device 11 is adjusted, whereby the depth of the groove formed in the field can be adjusted.

As described above, in the seedling transplanting machine 1 of this example, the grooving device 20 has a grooving body 20A formed in a substantially V-shape in a plan view so as to have an apex angle portion forward in a plan view, and the grooving body. On the upper side of the 20A, a downward horizontal plane portion 20B provided so as to project substantially horizontally from the grooving body 20A to both left and right sides, and a horizontal plane portion 20B extending substantially diagonally upward in front of the grooving body 20A. It is provided with a downward leveling surface portion 20C. According to this configuration, first, the raised portion of the field scene is leveled by the leveling surface portion 20C, and then the groove is formed by the groove cutting body 20A, and when the groove is formed, the raised portions are to be raised on both sides thereof. The field scene can be pressed horizontally by the horizontal plane portions 20B on both the left and right sides. As described above, according to the seedling transplanting machine 1 of the present invention, grooving can be performed at the same time as seedling transplanting, which leads to labor saving and can manage water entry and drainage immediately after planting in a short time. In addition, the grooves formed in the field reduce the running ripples on the water surface that occur during subsequent seedling transplanting, so even if transplanting at high speed, the effect on the seedlings immediately after planting the adjacent row is minimized. can do.

Further, since the grooving device 20 is provided on the rear extension line of the wheels of the traveling machine body 4, the horizontal surface portion 20B and the leveling surface portion 20C form a groove while leveling the traveling traces of the wheels in front of the horizontal surface portion 20B. be able to.

Further, a pair of grooving devices 20 are provided, the pair of grooving devices 20 are arranged symmetrically with respect to the seedling planting portion 9, and each grooving device 20 has a seedling planting portion at the lower end thereof. Since the seedling planting portion 9 is supported when the seedling planting portion 9 is in contact with the support surface by being arranged at a position lower than the lower end of the 9, the grooving device 20 is planted outside the field. It can be used as a stand for the part 9. Therefore, it is not necessary to provide a separate stand.

Further, the grooving device 20 has a support configured such that the upper end is connected to the seedling planting portion 9, the intermediate portion passes through substantially the center in the width direction of the grooving body 20A, and the lower end is in contact with the support surface. The body 20D is provided, and the lower end portion of the support 20D is formed so as to extend in the front-rear direction of the traveling machine 4 in the bottom view, so that it acts to form the deepest portion of the groove when traveling in the field. At the same time, when used as a stand, the seedling planting portion 9 can be firmly supported by the support 20D.

Next, FIGS. 7 to 9 show the seedling transplanting machine 51 of the second embodiment which embodies the present invention. The seedling transplanting machine 51 is mainly different from the first embodiment in the following points. Therefore, duplicate explanations will be omitted by assigning the same reference numerals to the parts common to the same embodiment.

The grooving device 20 of this example is arranged on the rear extension line at the center of the traveling machine body 4, and is attached to the transmission case 13 of the seedling planting portion 9 via the attachment member 52.

Similar to the first embodiment, the seedling transplanting machine 51 of this example also has the effect that the horizontal surface portion 20B and the leveling surface portion 20C can form a groove while leveling the raised portion of the field scene. can.

The present invention is not limited to the above-described embodiment, and may be appropriately modified and embodied as described below, as long as it does not deviate from the gist of the invention.
(1) The arrangement mode of the grooving device 20 shall be changed as appropriate. For example, the grooving device 20 may be added to the seedling transplanting machine 1 of the first embodiment at the same position as that of the second embodiment, or the grooving device 20 may be provided on the rear extension lines of all the rear wheels 3. To do.
(2) The attachment structure of the grooving device 20 to the seedling planting portion 9 shall be changed as appropriate.
(3) Change the shape and size of the grooving body as appropriate. For example, it is exemplified that both rear ends of the grooving body are further extended rearward.

1 Seedling transplanter 2 Front wheel 3 Rear wheel 3A Main rear wheel 3B Auxiliary rear wheel 4 Traveling machine 5 Driver's seat 6 Engine 7 Transmission 8 Mission case 9 Seedling planting part 10 Link mechanism 11 Seedling planting device 12 Transmission shaft 13 Transmission case 14 Drive shaft 20 Grooving device 20A Grooving body 20B Horizontal plane part 20C Smoothing surface part 20D Support 20E Front end edge 20F Connecting member 21 Planting transmission case 22 Rotating case 23 Planting claw 24 Grounding float 25 Seedling stand 26 Cylindrical body 27 Mounting member 51 Seedling transplanter 52 Mounting member F Front side of the machine

Claims (4)

It is equipped with a traveling machine configured to run freely in the field and a seedling planting section connected to the rear of the running machine.
The seedling planting section is provided with a plurality of planting claws arranged in rows at intervals in the left-right direction.
A seedling transplanting machine in which a grooving device is arranged between adjacent planted claws at at least one place.
The grooving device has a grooving body formed in a substantially V-shape in a plan view so as to have an apex angle portion in front in a plan view, and is substantially horizontal from the grooving body to both left and right sides on the upper side of the grooving body. A seedling transplanting machine having a downward horizontal surface portion provided so as to overhang the surface and a downward leveling surface portion extending substantially diagonally upward from the horizontal surface portion. The seedling transplanting machine according to claim 1, wherein the grooving device is provided on a rear extension line of a wheel of the traveling machine body. Equipped with a pair of the grooving devices
The pair of grooving devices are arranged symmetrically with respect to the seedling planting portion.
Each grooving device is configured to support the seedling planting portion when it touches the support surface by disposing the lower end thereof at a position lower than the lower end of the seedling planting portion. Item 3. The seedling transplanting machine according to Item 1 or 2. The grooving device has a support configured such that the upper end is connected to the seedling planting portion, the intermediate portion passes through substantially the center in the width direction of the grooving body, and the lower end is in contact with the support surface. The seedling transplanting machine according to claim 3, wherein the lower end portion of the support is formed so as to extend in the front-rear direction of the traveling machine in a bottom view.

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