JP2000175527A - Seedling guide structure of rice transplanter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a seedling guide structure capable of planting a seedling block on a field in nearly vertical state and, accordingly, ensuring good growth of the seedling by placing a specific front seedling guide member between the front ends of a pair of right and left side seedling guide members. SOLUTION: A seedling delivery port is opened under a seedling holding table, a pair of right and left side guide members 33 are extended from the delivery port downward, the lower end of a seedling mat on the seedling holding table is cut with a planting claw 24 and the seedling block is delivered from the seedling delivery port and planted on a field along the side seedling guide members 33. In a seedling guide structure of a rice transplanter having the above structure, a front seedling guide member 45 extending downward nearly along both front edges is placed between the front edges of the right and left side seedling guide members 33. The longitudinal dimension of the front seedling guide member 45 is made to be larger than the lateral dimension.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a seedling guide structure for a rice transplanter.

[0002]

2. Description of the Related Art Conventionally, as one form of a seedling guide structure of a rice transplanter, a seedling outlet is opened at a lower portion of a seedling mounting table, and a pair of left and right side guides is extended downward from the seedling outlet. Then, the lower end of the seedling mat on the seedling mounting table is cut with a planting claw, a seedling block is taken out from the seedling outlet, and the seedling block is planted in the field along the lateral seedling guide body. There is something that I did.

[0003] At this time, a pair of left and right lateral seedling guide bodies can be planted in a field while restricting the right and left posture of the seedling block sandwiched between the tips of the planting claws. ing.

[0004]

However, in the above-described seedling guide structure, although the disturbance of the lateral posture of the seedling block can be regulated, the disturbance of the longitudinal posture cannot be regulated. There is a problem that the seedlings cannot be satisfactorily maintained because they are planted in the backward tilted posture.

[0005]

Therefore, according to the present invention, a seedling outlet is opened at the lower part of the seedling mounting table, and a pair of left and right side guides is extended downward from the seedling outlet. Rice planting by cutting the lower end of the seedling mat on the seedling table with planting nails, removing the seedling block from the seedling outlet, and planting the seedling block in the field along the lateral seedling guide. In the seedling guide structure of the machine, between the front end edges of the pair of left and right side seedling guide bodies, a front seedling guide body extending downward substantially along both front edges is arranged, and the front seedling guide body is Further, the present invention provides a seedling guide structure for a rice transplanter, wherein the front-rear width is made larger than the left-right width.

The present invention also has the following features in the configuration.

The rear end edge of the front seedling guide body is formed by bending so as to substantially follow the planting static locus of the planting claw.

[0008] The lower end portion of the front seedling guide body is formed to extend downward from the lower end portions of the pair of left and right lateral seedling guide bodies.

[0009]

Embodiments of the present invention will be described below.

That is, the seedling guide structure of the rice transplanter according to the present invention has a basic structure in which a seedling outlet is opened at a lower portion of a seedling mounting table, and a pair of left and right side guides are provided below the seedling outlet. Extend the body, cut the lower end of the seedling mat on the seedling mounting table with the planting claw, take out the seedling block from the seedling outlet, and place the seedling block along the side seedling guide body in the field. I try to plant it.

As a characteristic structure, a front seedling guide extending substantially downward along both front edges is provided between the front edges of the pair of left and right lateral seedling guides. The guide body has a front-rear width larger than the left-right width.

In this way, the posture of the seedling block sandwiched between the tips of the planting claws can be controlled in the left-right direction by the pair of left and right side seedling guides, and the side seedling guides can be controlled. It is arranged between the front edge portions of the body, and the forward turbulence can be regulated by the front seedling guide body extending downward substantially along both front edge portions, so that the same seedling block is substantially upright in the field. Can be planted. Therefore, the growth condition of the seedlings can be satisfactorily secured.

At this time, at the rear end edge of the front seedling guide body,
While the seedling block slides downward from above while being pressed by the planting claws, the front seedling guide body has a front-rear width larger than the left-right width, and the front seedling guide body is not bent against the front-back bending. Since the rigidity is increased, the front seedling guide body does not resonate even when repeatedly subjected to the pressing force.

[0014] Therefore, the front seedling guide body can maintain the stable guiding function of the seedling block, and the planting posture of the seedling block can be secured well.

Further, the rear end edge portion of the front seedling guide body is formed to be curved so as to substantially follow the planting static locus of the planting nail.

In this manner, the seedling block acts on the front seedling guide body with a substantially uniform pressing force from the upper end to the lower end by the planting claws.

At this time, since the front seedling guide body has high rigidity against bending in the front-rear direction as described above, it does not vibrate and performs a stable seedling guiding function. As a result, the seedling placement posture of the seedling block can be favorably secured.

Further, the lower end portion of the front seedling guide is formed to extend downward from the lower end of the pair of left and right lateral seedling guides.

In this manner, the posture of the seedling block can be regulated for a long time in the front-rear direction where the posture is more likely to be disturbed than in the left-right direction, and the planting posture in the field can be ensured satisfactorily.

In addition, immediately before planting the seedling block in the field, the excess soil adhering to the seedling block can be once released to the left and right sides immediately after passing through the lower end of the lateral seedling guide body. The planting of the blocks can be performed smoothly and with the implantation posture being well maintained.

[0021]

Embodiments of the present invention will be described below with reference to the drawings.

A shown in FIG. 1 is a riding rice transplanter provided with a seedling guide structure according to the present invention. 3 are connected.

As shown in FIG. 1, the traveling unit 1 is provided with a motor unit 5 at the front of the body frame 4, an operating unit 6 at a position rearward of the motor unit 5, and a driving unit 6 at a position below the operating unit 6. A transmission section 7 is provided, and left and right front wheels 8, 8 are interlocked to the transmission section 7 via front axle cases 9, 9, and left and right rear wheels 10, 10 are attached to the rear end of the body frame 4. Are interlocked via rear axle cases 11,11.

The motor unit 5 and the mission unit 7 are
The transmission section 7 and the rear axle cases 11, 11 are interlockingly connected via transmission shafts 13, 13, respectively.

As shown in FIG. 1, the planting section 2 has a planting mission case 21 attached to a planting frame 20 and a midway portion of a rotary case 22 is rotationally driven at the rear end of the planting mission case 21. Interlockingly connected via shaft 23, the rotary case 22
The planting claws 24, 24 are interlockingly connected to both ends of the plant, and the seedling mounting table 25 is placed above the planting mission case 21, while the center float 26 and the side floats are placed below the planting mission case 21. 27, 27 are mounted via a float support frame 28.

As shown also in FIGS. 2 and 3, the seedling mounting table 25 has a seedling mounting table body 31 mounted on a seedling mounting table rail 30 so as to be reciprocally slidable in the left-right direction. A plurality of seedling outlets 32 are opened facing the planting claws 24 in the front-rear direction, and each of the seedling outlets 32 has a pair of left and right lateral seedling guides 33, 33 extending downward. It is mounted via a mounting body. 35 is a mounting bolt and 36 is a PTO transmission shaft.

In this manner, a seedling mat (not shown) is placed on the seedling table main body 31, and the lower end of the seedling mat is attached to the planting nail.
24, the seedling block (not shown) is taken out from the seedling outlet 32, and the seedling block is guided to the side seedling guide body.
The plant is to be planted in the field G along 33,33.

As shown in FIG. 1, the lifting mechanism 3 has a lifting link mechanism 40 interposed between the body frame 4 and the planting frame 20, and the lifting mechanism 3 is provided between the lifting link mechanism 40 and the transmission unit 7. With the lifting cylinder 41 interposed, the lifting link mechanism 40 can be raised and lowered in conjunction with the expansion and contraction operation of the lifting cylinder 41.

In the above configuration, the gist of the present invention resides in a seedling guide structure. The seedling guide structure will be described below with reference to FIGS.

That is, a pair of left and right lateral seedling guide bodies 33, 3
3, a front seedling guide body 45 extending downward substantially along the front edge portions 33a, 33a is disposed between the front edge portions 33a, 33a.

The front seedling guide body 45 is formed in a plate shape extending in the up-down direction and curving convexly forward.
Attachment body 46 is attached to the upper end, front seedling guide body 45,
The width W1 is larger than the width W2. 47 is a bolt insertion hole.

In addition, the rear edge 45a of the front seedling guide body 45
Are formed so as to be curved substantially along the stationary planting locus K of the planting claws 24.

Further, the lower end portion 45b of the front seedling guide body 45
Are lower end portions 33b, 33b of a pair of left and right lateral seedling guide bodies 33, 33.
It is formed so as to extend downward. L is the extension.

In this manner, the front seedling guide body 45 is provided with the mounting body 46 as the supporting frame for supporting the seedling mounting rail 30.
At 49, the attachments 34 of the lateral seedling guides 33, 33 are superimposed with each other, and are integrally attached by attachment bolts 48, 48.

FIG. 6 is an end view of a front seedling guide body 45 according to a second embodiment.
The front seedling guide body 45 is formed in a substantially isosceles triangular shape having a wide 45c side and a narrow rear end edge 45a side. The cross section is designed to be high.

FIGS. 7 to 9 show a front seedling guide body 45 as a third embodiment. The front seedling guide body 45 is formed in a T-shape in the end surface, and the front and rear of the front seedling guide body 45 is formed. The sectional design is such that the rigidity against bending in the direction is higher than that of the front seedling guide body 45 of the second embodiment.

FIG. 10 shows a front seedling guide body 45 as a fourth embodiment. The front seedling guide body 45 is formed by combining the end face shapes of the second and third embodiments. The cross-sectional design is such that the rigidity against bending in the front-rear direction is higher than that of the front seedling guide body 45 of the third embodiment.

[0038]

According to the present invention, the following effects can be obtained.

According to the first aspect of the present invention, the front seedling guide body extending downward substantially along the front edge portions is disposed between the front edge portions of the pair of left and right lateral seedling guide bodies. In addition, the posture of the seedling block sandwiched between the tips of the planting claws can restrict the disturbance in the left-right direction by the pair of left and right lateral seedling guides, and the forward disturbance by the front seedling guides. The seedling block can be planted in the field in a substantially upright state. Therefore, the growth condition of the seedlings can be satisfactorily secured.

Moreover, at the rear edge of the front seedling guide body,
While the seedling block slides downward from above while being pressed by the planting claws, the front seedling guide body has a front-rear width larger than the left-right width, and the front seedling guide body is not bent against the front-back bending. Since the rigidity is increased, the front seedling guide body does not resonate even when repeatedly subjected to the pressing force.

Therefore, the front seedling guide body can maintain a stable guiding function of the seedling block, and the planting posture of the seedling block can be secured well.

According to the second aspect of the present invention, since the rear end edge portion of the front seedling guide body is formed to be curved so as to substantially follow the planting static trajectory of the planting nail, the front seedling guide body is formed. , The seedling block acts with a substantially uniform pressing force from the upper end to the lower end by the planting claws.

At this time, since the front seedling guide body has high rigidity against bending in the front-rear direction as described above, it does not vibrate and performs a stable seedling guiding function. As a result, the seedling placement posture of the seedling block can be favorably secured.

According to the third aspect of the present invention, since the lower end of the front seedling guide is formed to extend downward from the lower end of the pair of left and right lateral seedling guides, the posture of the seedling block is set. Can be regulated for a long time in the front-rear direction in which the posture is more likely to be disturbed than in the left-right direction, and the planting posture in the field can be ensured satisfactorily.

In addition, immediately before planting the seedling block in the field, excess soil adhering to the seedling block can be once released to the right and left sides immediately after passing through the lower end of the lateral seedling guide body. The planting of the blocks can be performed smoothly and with the implantation posture being well maintained.

[Brief description of the drawings]

FIG. 1 is a side view of a riding rice transplanter having a seedling guide structure according to the present invention.

FIG. 2 is a side view showing the seedling guide structure.

FIG. 3 is a rear view showing the seedling guide structure.

FIG. 4 is a rear view of the front seedling guide body.

FIG. 5 is an end view taken along the line II of FIG. 2;

FIG. 6 is an end view of a front seedling guide body as a second embodiment.

FIG. 7 is a side view of a front seedling guide body as a third embodiment.

FIG. 8 is a rear view of the front seedling guide body.

FIG. 9 is an end view taken along line II-II of FIG. 7;

FIG. 10 is an end view of a front seedling guide body as a fourth embodiment.

[Explanation of symbols]

 A Passenger rice transplanter 1 Running section 2 Planting section 3 Elevating mechanism 4 Airframe

Claims (3)

[Claims] An opening for opening a seedling is provided at a lower portion of a seedling mounting table, and a pair of left and right side guides is extended downward from the seedling extracting opening to provide a lower end portion of a seedling mat on the seedling mounting table. Cutting with a planting claw, taking out the seedling block from the seedling outlet,
In the seedling guide structure of a rice transplanter in which the same seedling block is planted in a field along the side seedling guide body, between the front end edges of the pair of left and right side seedling guide bodies, substantially along both front end edges. A seedling guide structure for a rice transplanter, wherein a front seedling guide body extending downwardly is disposed, and the front seedling guide body has a front-rear width larger than a left-right width. 2. The seedling guide structure for a rice transplanter according to claim 1, wherein a rear end edge portion of the front seedling guide body is formed so as to be curved substantially along the planting static locus of the planting claw. 3. The seedling of a rice transplanter according to claim 1, wherein a lower end of the front seedling guide is formed to extend downward from a lower end of the pair of left and right side seedling guides. Guide structure.