JPH0795888B2 - Rice planting machine seedling split claws - Google Patents

Description

Detailed Description of the Invention

[0001]

The present invention relates to relates to a seedling split nail rice transplanter for clamping by dividing the thrust Togeri seedbed soil towards the lower surface from the upper surface of the nursery soil.

[0002]

2. Description of the Related Art Conventionally, in the planting claw of this seed rice transplanter,
Examples of the space provided between the seedling dividing claws into which the foliage of the seedling is inserted are (1) Japanese Utility Model Application Laid-Open No. 58-35816, and known (2) Japanese Patent Application Laid-Open No. 54-111424.
(3) Some are described in Japanese Utility Model Publication No. 51-30263.

[0003]

Among the conventional planting claws, the above-mentioned (1) is an opening and closing type in which one of a pair of seedling dividing claws is opened at the time of planting and the seedbed is divided. When scraped off, the whole foliage of the seedling is stored and held in the space between the split nails of the seedlings. There is a problem that it is difficult to introduce the foliage into the space, and the foliage is broken or planted in a fallen state. Further, in order to facilitate the introduction, an inclined surface inclined toward the space portion is provided at the front edge of the facing seedling dividing nail, but it is a substantially uniform inclined surface up to the tip of the planting nail. However, there is a problem such that the cutting surface of the seedbed is not neatly aligned when the seedling is scraped off at the tip.

Next, in the above (2) and (3), the planting claw made of a plate is formed into a bifurcated shape, and when the seedbed is split and scraped, the upper half of the foliage is planted. from bifurcated space of the claw so as to expose the front, but is obtained so as to prevent breakage of the stems and leaves, the inclined surfaces of both the right and left side front edge of the bifurcated portion toward the space portion Not provided, not only the foliage is not smoothly introduced into the space during split scraping of the nursery,
Poor support of the leaf blades of the split seedlings, and the leaves fall or tilt during the downward movement of the nails, resulting in improper posture and being planted in the rice field. There is a defect such as deterioration of the seedlings and lack of consideration for cleaning the cut surface of the nursery.

[0005]

SUMMARY OF THE INVENTION The present invention, such aims to improve the conventional defect, the distal end side of the seedling leaf particular the front edge 8a central portion of the split nail 6 notching from the lower to the upper side bifurcation shape and without the foliage has a space capable of portion 8b fitted excluding, pinching to hold a seedbed of split seedlings side edge 8c portion on the right and left sides of the bifurcated portion and extending toward the rear Part, and the tip of the side edge 8c is inclined so that it becomes higher toward the rear.
Formed on the lateral side divided part 8g of the slanted nursery soil , left and right of the bifurcated part
The front edge 8a on both sides , the ridge line portion is left on the side of the side edge 8c on the surface of 8a .
Of connecting the left and right inclined surfaces in the back side of and bifurcated portion an inclined surface side edge 8c side is deep as shallow space 8b side in the vertical direction and
Was allowed to form a concave surface 8d continuous form, together with the form to support the leaves and stems of the seedlings divided sandwiched by the concave surface 8d, the distal end portion viewed from the front in the claw tip leading edge 8a of the bifurcated portion is in sharp ,
Moreover, an inclined flat cutting surface 8f is formed so as to be rearward toward the tip end side in a side view , and the flat cutting surface 8f has a bottom side in a front view.
Formed in a triangular shape along the side edge 8c of the split claw 6, and above it
The ridge line portion and the concave surface 8d are continuously provided on the
And the left and right claws that form the oblique side of the flat cutting surface 8f
Front side divided parts 8h, 8 of the nursery soil facing the tip in a V shape
It is characterized in that it is formed in h .

[0006]

Based on the above configuration, the seedbed a is well separated from the placed seedling 4 by the flat cutting surface 8f having a triangular shape in a front view, which is formed at the tip of the seedling dividing claw 6 having a bifurcated shape, so that one seedling can be easily separated. Surely scraping each one, sandwiching the seedbed part of the divided seedling between the left and right side edges 8c while smoothly guiding the foliage into the bifurcated space part, and the foliage part forward from the bifurcated space part 8b to the tip side. The divided seedlings are planted in an orderly manner without being disturbed because they are supported by a posture integrated with the concave surface 8d portion provided on the front edge 8a in an inclined posture and descend while maintaining a proper posture.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will now be described with reference to the drawings, in which 1 is a seedling placing table of a rice transplanter, which is reciprocally moved laterally on a seedling taking out table 2 supported by the machine body. Reference numeral 3 denotes a fall prevention plate provided to prevent the foliage of the placed seedling 4 from entering the movement path of the planting nail. Reference numeral 5 denotes a planter arm provided at a position facing the seedling take-out port of the seedling take-out stand 2, the base of which is connected to the machine body and reciprocates vertically by an appropriate transmission mechanism. A seedling dividing claw 6 is attached to the front end portion 5a of the planter arm 5 with a bolt 6a, and the tip of the seedling dividing claw 6 draws a loop-shaped trajectory A passing through the seedling take-out port as the planter arm 5 moves up and down. Is configured.

The seedling dividing claw 6 is formed by integrally connecting an upper mounting member 7 and a lower claw portion 8 with a screw stud 9a. As the claw portion 8 becomes bifurcation shape foliage portion except for the distal end side of the seedling leaf notching upward front edge 8a central portion from the lower portion to form a space portion 8b fittable facing the Naenodai 1 <br/> Ru have. Side edges 8c extending rearward are formed on both left and right sides of the front edge 8a. The inside of the bifurcated claw surrounded by the side edges 8c, 8c and the front edge 8a is It is a scraping and holding section 8e for split seedlings. And the both side edges 8
The tips of c and 8c are inclined so that they become higher toward the rear.
It is formed on the lateral side divided portions 8g, 8g of the nursery soil. Also,
The front edges 8a of the left and right claws 8 , 8 have side edges 8a , 8a.
The side edge 8c side is shallow, leaving a ridge line on the c side,
The slanted surface that is deeper on the b side is located vertically and at the back side of the bifurcated portion.
A concave surface 8d formed by connecting left and right inclined surfaces is formed continuously. The inclined surface guides the foliage of the seedling to the space 8b, and the concave surface 8d is divided and held by the scraping and holding portion 8e. It is designed to support the foliage of the seedlings.

The bifurcated claw tip front edge 8 is formed.
tip viewed from the front in a is in sharp and constitutes a flat cutting surface 8f that the rear become inclined as front end side in a side view, polarizing
When viewed from the front, the flat cutting surface 8f has a bottom edge on the side edge 8c of the seedling dividing claw 6.
It is formed in a triangular shape along with the ridge and the concave surface 8 above it.
d is arranged in series to form a relief portion when dividing seedlings, and the flat cutting is performed.
The left and right toe parts forming the hypotenuse of the surface 8f face each other in a V shape.
And is formed in the front divisions 8h, 8h of the nursery soil ,
The effect of dividing the nursery soil when it plunges into the nursery soil is good so that the seedlings can be separated from each other. Further, the holding portion 8e is also shown in FIG.
As shown in FIG. 5, the tip side has a shallow side edge, and the central part is formed with a deeper slope, and the left and right edges of the bifurcated space portion 8b are formed on the front surface and the back surface of the front edge 8a including the flat cutting surface 8f. The front and rear slopes 8g and 8h form a wedge shape and are formed at an acute angle. Reference numeral 9 denotes a planter fork whose front end is seen through the holding portion 8e of the seedling dividing claw 6, which is screwed to the tip of a fork rod 10 which is slidably supported in the planter arm 5 in the vertical direction. The tip of the fork 9 moves up and down in the holding portion 8e by an appropriate transmission mechanism installed inside the planter arm 5.
When the seedling splitting claw 6 splits and holds a single seedling from the seedling take-out port and reaches the rice field with the descending operation of the fork rod 10,
The planting forks 9 push down the above-mentioned sandwiched seedlings to plant them on the rice field.

According to the present invention, however, when the front end 5a of the planter arm 5 reciprocates in the vertical direction, the tip of the seedling dividing claw 6 reciprocates in the vertical direction in a loop-shaped locus A, and the descending stroke At the terminal end, the sharp tip of the bifurcated nail pierces from the upper surface of the seedbed soil of the placed seedling 4 placed on the seedling placing table 1 toward the lower surface, and the flat cutting surface 8f and side of the leading edge 8a of the nail. The seedlings are scraped off by the edges 8c, but at this time, the central portion of the leading edge of the seedlings to be divided, that is, the portion corresponding to the space portion 8b of the nail is cut by the wedge action from both sides even though it is not directly cut. And the flat cutting surface 8f has a triangular shape when viewed from the front.
It is formed in a shape, and the ridge line portion and the concave surface 8d are connected above it.
Since it is installed and has an inclined shape that is rearward from the tip side when viewed from the side, there is less resistance to the piercing action on the seedbed.
It is possible to promote the separation of the cut by its piercing action, and to surely divide it by the smooth surface of the flat cutting surface 8f .
A concave surface 8d is continuously provided on the upper part of the triangular cutting surface 8f.
Since the escape part when dividing seedlings is configured, seedling separation is good.
It is possible to obtain a clean cut surface, and the bed soil of the split seedlings is firmly held by the holding part 8e without causing root collapse, and the foliage part is forward from the bifurcated space part 8b to the tip side. Scraping of seedlings is completed in the inclined posture facing.

Then, when the planter arm 5 finishes scraping and further descends, the foliage portion of the divided seedling which is separated from the adjacent foliage of the placed seedling 4 and easily inclined in a free direction is shown in FIG. As shown in (A), it is supported in an orderly manner in a state where it is gathered in the concave surface 8d provided on the front edge 8a,
The seedling splitting claw 6 is maintained in the posture at the time of substantially scraping without falling apart or tilting, and at the same time when the tip of the seedling splitting claw 6 reaches the paddy field, the splitting seedling is pushed out by the lowering of the planter fork 9, and the proper posture is maintained. It will be planted in order on the rice field.

[0012]

The present invention is configured as described above ,
Especially, the flat cutting surface 8f formed at the tip of the seedling dividing claw 6 is
The ridge and the concave surface 8 are formed above the triangular shape in a front view.
By arranging d in series to form the escape part when dividing seedlings
The seedlings are separated from each other with good resistance and the seedbeds are scraped and divided reliably, and a clean cut surface can be obtained . But
It, bifurcated space with, the inclined surfaces provided on the front edge 8a of the seedling split nail 6 bed soil of the divided seedling can be clamped in a state of firmly stable at clamping portion 8e without producing roots collapse The foliage portion is smoothly guided to the portion 8b, and the foliage portion of the divided seedling is supported in a posture in which the tip side faces forward from between the bifurcated space portions 8b in a posture gathered by the concave surface 8d portion provided on the front edge 8a. Then, since it descends while maintaining an appropriate posture, it is possible to plant the split seedlings neatly on the rice field without the stems and leaves falling or falling.

[Brief description of drawings]

FIG. 1 is an explanatory view showing the operation of the whole seedling dividing nail of a rice transplanter.

FIG. 2 is a perspective view of a seedling dividing claw.

FIG. 3 is a front view of the same.

FIG. 4 is an upper sectional view of the same.

5A is a sectional view taken along line DD of FIG. 3, and FIG.
3 is a cross-sectional view taken along the line CC of FIG. 3, (C) is a cross-sectional view taken along the line BB of FIG. 3, and (D) is a cross-sectional view taken along the line AA of FIG.

FIG. 6 (A) is a side view showing the action of the tip of the seedling dividing nail,
FIG. 6B is a sectional view taken along line FF shown in FIG.

FIG. 7 is a sectional view of an action portion of a conventional iron plate claw.

FIG. 8 is a sectional view of a working portion of a conventional chopstick nail.

[Explanation of symbols]

 5 Planter Arm 6 Seedling Split Claw 8a Front Edge 8b Bifurcated Space 8d Concave 8e Clamping Part 9 Planter Fork

Continuation of the front page (56) Reference JP-A-54-111424 (JP, A) Actually opened 58-35816 (JP, U) Actual public 51-30263 (JP, Y1) Japanese patent 56-10007 (JP) , B2)

Claims (1)

[Claims] 1. A seedling stalk from the upper surface to the lower surface of the nursery soil
To form the seedlings division pawl 6 for clamping by dividing the Tsukitogeri seedbed along the leaf direction, foliage except for the distal end side of the seedling leaves leading edge 8a central portion notching from the lower to the upper side of the split nail 6 and extending to form a clamping portion for holding the seedbed portion of the divided seedling toward but bifurcation shape and without having fitted possible space 8b, the side edge 8c portion on the right and left sides of the bifurcated portion at the rear , The tip of the side edge 8c
The lateral portion of the nursery soil that is inclined so that
Front edges 8a , 8a on both left and right sides of the bifurcated portion are formed on the split portion 8g.
On the surface, a sloping surface that is shallower on the side edge 8c side and deeper on the space portion 8b side with the ridge line portion left on the side edge 8c side is formed vertically and bifurcated.
In the back side to connect the left and right inclined surfaces of the parts made to form a concave surface 8d continuous form, together with the form to support the leaves and stems of the divided clamping seedlings with concave surface 8d, the pawl tip the front edge of the bifurcation 8
tip viewed from the front in a is in sharp and constitutes a flat cutting surface 8f that the rear become inclined as front end side in a side view, polarizing
When viewed from the front, the flat cutting surface 8f has a bottom edge on the side edge 8c of the seedling dividing claw 6.
It is formed in a triangular shape along with the ridge and the concave surface 8 above it.
d is arranged in series to form a relief portion when dividing seedlings, and the flat cutting is performed.
The left and right toe parts forming the hypotenuse of the surface 8f face each other in a V shape.
The seedling-splitting nails of the rice transplanter, which are formed on the front-side split portions 8h, 8h of the seedbed soil .