JPH0335058Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is a seedling splitting device for a rice transplanter that sequentially divides seedlings for unit planting from a pine-shaped group of seedlings and plants them at seedling planting positions on the rice field. This is related.

In the seedling division planting device of this seed rice transplanter, a pair of planting claws configured to slide in the vertical direction while drawing a predetermined movement trajectory are provided at the tip of the planting rod.
The pair of planting claws sequentially divides the group seedlings into seedlings for unit planting stocks and plants them at the seedling planting position on the rice field. Since it was set so that only the tip was located on the movement trajectory, the cutting resistance when cutting into the seedbed of grouped seedlings was extremely large, which caused the seedbed to be divided to be broken and the seedling posture to be disturbed. Otherwise, the seedling stems at the part to be divided may be pushed down, causing the seedlings to bend, making it impossible to reliably separate the seedlings destined for unit planting, making it difficult to properly plant seedlings at all times. There was a drawback that I couldn't do it. In particular, when dividing a seedbed using substitute soil that has recently been commercially available, the problem is even greater because the seedbed is difficult to cut.

In view of the above-mentioned circumstances, the present invention was devised in order to eliminate the drawbacks of the conventional methods.In particular, the present invention has been devised in order to eliminate the drawbacks of the conventional methods. A seedbed vertical cutting blade is formed on the sloped edge along the movement locus during the dividing action to cut the seedbed in the vertical direction, and a part of the upper edge connected to the end of the sloped edge is bent inward. A seedbed horizontal cutting blade is provided which cuts the seedbed in the horizontal direction on the movement trajectory passed by the seedbed vertical cutting blade, and the leading edge of the seedbed horizontal cutting blade is provided with an inclined edge whose facing distance narrows from the front to the rear. When the pair of planting claws divides the seedbed of group seedlings, the seedlings are separated from within the opposing distance of the vertical cutting blade of the seedbed to the side of the seedbed without damaging the seedling stems of the part to be divided. While smoothly guiding the cutting blades into the opposing spacing, the seedbed vertical cutting blade first forms a vertical cut in the seedbed along the movement trajectory, and then the seedbed vertical cutting blade cuts the seedbed horizontally on the movement trajectory passed by the seedbed vertical cutting blade. The cutting blade forms horizontal cuts in the seedbed to reduce the cutting resistance during splitting, allowing the seedbed to be reliably divided without collapsing.
To provide a seedling dividing and planting device for a rice transplanter which can always properly plant seedlings without causing any disturbance in the posture of the seedlings or bending of the seedlings.

To explain the configuration of the present invention with reference to an embodiment shown in the drawings, 1 is a planting rod;
is constructed such that a pair of planting claws 2 provided at its tip repeatedly slide in the vertical direction while drawing a predetermined locus of movement.

Reference numeral 3 denotes a seedling mounting table facing the trajectory of movement of the pair of planting claws 2, and the seedling mounting table 3 stores clustered seedlings 4 divided by the pair of planting claws 2. .

5 is located on the rear side of the pair of planting claws 2, and the planting rod 1
The actuating rod is attached to the tip of the seedling rod 5 so as to be able to move up and down.
A planting fork 6 facing the inside of a pair of planting claws 2 is integrally provided, and the planting fork 6
is adapted to repeat a predetermined advance and retreat in the length direction of the planting claw 2 in conjunction with the vertical sliding movement of the planting rod 1.

The pair of planting claws 2 have an inclined edge 2a formed on the upper edge of their tip portions from the lower edge to the rear upper edge of a certain length along the movement locus A during the seedbed dividing action, and this inclined edge 2a and Depending on the lower edge, group seedlings 4
A seedbed vertical cutting blade 2b having a substantially acute triangular shape is formed to cut the seedbed in the vertical direction. Further, a part of the upper edge connected to the terminal end of the inclined edge 2a is bent inward to form a seedbed transverse cutting blade 2c that cuts the seedbed of the group of seedlings 4 in the horizontal direction. The front edge of the horizontal cutting blade 2c is formed into an inclined edge 9 such that the facing interval 8 narrows from the front to the rear. When forming a vertical cut, the seedling can be smoothly guided within the facing interval 10 without damaging the part to be divided.

In addition, the opposing distance on the rear side of the opposing distance 8 of the seedbed horizontal cutting blade 2c is set to such an extent that the seedling stem portion to be divided can pass through without being disturbed when forming a horizontal cut in the seedbed of the group seedlings 4. has been done.

Next, the operation of the present invention constructed as described above will be explained. Now, when the planting rod 1 is driven, the pair of planting claws 2 provided at its tip repeatedly slide vertically in a predetermined movement trajectory, and the seedling stand 3 containing the group of seedlings 4 is moved. When it moves in the left or right direction via a left-right reciprocating drive mechanism (not shown),
The group seedlings 4 are divided into seedlings for unit planting by a pair of planting claws 2, and the divided seedlings are held between the pair of planting claws 2 and carried to the seedling planting position on the rice field. Thereafter, the seedlings are pushed in by the seedling pushing piece 6a of the planting fork 6 and planted.

By the way, in the above-mentioned process of dividing the group seedlings, the tip of the pair of planting claws 2 is provided with a seedbed vertical cutting blade 2b whose upper edge is formed into an inclined edge 2a along the movement locus A during the seedbed dividing action. , and a seedbed transverse cutting blade 2c that passes through the above-mentioned movement trajectory A in conjunction with this.
is provided, so the seedbed for the group seedlings 4 is first vertically cut by the seedbed vertical cutting blade 2b to a depth of about 1/2 to 2/3 of the seedbed thickness, and then the seedbed vertical cutting blade 2b is cut vertically to a depth of approximately 1/2 to 2/3 of the seedbed thickness. The seedbed horizontal cutting blade 2c
cut across by. Therefore, since the seedbed of the group seedlings 4 is subjected to a vertical cutting action and then a horizontal cutting action on the same movement trajectory A, the cutting resistance during division is reduced, and the division can be performed reliably without causing collapse of the seedling bed. This will not cause any disturbance in the posture of the seedlings. For this reason, even seedbeds made of alternative bedding soil, which is relatively difficult to cut, can be cut extremely easily.

In addition, since the front edge 7 of the seedbed horizontal cutting blade 2c is formed into an inclined edge 9 whose facing interval 8 narrows from the front to the rear, when the seedbed vertical cutting blade 2b cuts into the divided portion of the group of seedlings 4, In addition, without damaging the seedling stem part, the inclined edge 9 moves the seedling stem part from within the facing interval 10 of the seedbed vertical cutting blade 2b to the direction of the facing interval 8 on the rear side of the seedling horizontal cutting blade 2c. The seedlings can be guided smoothly, and therefore, the seedling stems will not be pushed down by the pair of planting claws 2 and the seedlings will not bend when the seedbed is divided.

In short, the present invention forms an inclined edge on the upper edge of the tip of the pair of planting claws from the lower edge to the rear upper edge of a certain length along the locus of movement during the seedbed dividing action,
A seedbed vertical cutting blade is provided to cut the seedbed in the vertical direction, and a portion of the upper edge connected to the end of the inclined edge is bent inward to form a protrusion, so that the seedbed vertical cutting blade is placed on the movement trajectory passed by the seedbed vertical cutting blade. A seedbed cross-cutting blade is provided to cut the seedbed in the horizontal direction, and the front edge of the seedbed cross-cutting blade is formed into an inclined edge whose facing distance narrows from the front to the rear, so that the pair of planting claws can cut the seedbed in a group. When dividing the seedlings, first cut the seedlings vertically while guiding them smoothly from within the facing interval of the seedbed vertical cutting blades to within the facing interval of the seedling horizontal cutting blades without damaging the seedlings in the part to be divided. After forming a vertical cut in the seedbed along the locus of movement with the cutting blade, a horizontal cut in the seedbed is then formed with a transverse seedbed cutting blade on the locus of movement passed by the vertical cutting blade of the seedbed. By reducing cutting resistance, it is possible to reliably separate seedlings for unit planting plants, thereby eliminating any collapse of the seedbed, disturbance of seedling posture, or buckling of the seedlings, and ensuring that seedlings are always properly planted. It has extremely useful practical effects that can be achieved in many ways.

[Brief explanation of the drawing]

The drawings show an embodiment of the seedling division planting device in the rice transplanter according to the present invention, in which Fig. 1 is a side view of the planting rod, Fig. 2 is a perspective view of the planting claw, and Fig. 3 is a side view of the planting rod. is a side view when seedlings are divided, Figure 4 is a side view when seedlings are planted, Figure 5 is a back view when seedlings are divided, and Figures 6A and B and 7A and B are respectively when seedlings are divided. It is an action explanatory diagram. In the figure, 1 is a planting rod, 2 is a planting claw, 2a is an inclined edge, 2b is a seedbed vertical cutting blade, 2c is a seedbed horizontal cutting blade,
3 is a seedling mounting table, 4 is a group of seedlings, 5 is an operating rod, 6
is the planting fork, 7 is the leading edge, 8 is the opposing distance between the seedbed horizontal cutting blades, 9 is the inclined edge, 10 is the opposing distance between the seedbed vertical cutting blades, and A is the locus of movement of the planting claws during the seedbed dividing action. .

Claims (1)

[Scope of utility model registration request] In a rice transplanter having a planting rod equipped with a pair of planting claws, the group of seedlings stored in a seedling mounting table is divided into seedlings for unit planting stocks, and the seedlings are planted at the seedling planting position on the rice field. A seedbed vertical cutting blade is formed on the upper edge of the tip of the pair of planting claws from the lower edge to the rear upper edge of a certain length to form an inclined edge along the locus of movement during the seedbed dividing action to cut the seedbed in the vertical direction. A seedbed horizontal cutting blade is provided, and a part of the upper edge connected to the end of the inclined edge is bent inward to cut the seedbed horizontally on the movement locus passed by the seedbed vertical cutting blade. 1. A seedling dividing and planting device for a rice transplanter, characterized in that the front edge of the seedbed transverse cutting blade is formed into an inclined edge that is sandwiched by opposing intervals from the front to the rear.