JPH09172818A - Soil covering for transplanter and device therefor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve seedling rooting and harvest by soil covering with press wheels in such a state as to prevent the branches and leaves of planted soil- bearing seedlings from hanging down by a planting cylinder to carry out the soil covering by a transplanter efficiently. SOLUTION: A field is planted with soil-bearing seedlings P at specified intervals by a planting cylinder 18 being in vertical motion while traveling; concurrently, a soil, covering is conducted by press wheels 15 in such a state as to prevent the branches and leaves P1 of the seedlings P from hanging down by the planting cylinder 18. A pair of the left and right press wheels 15 also serve as setting planting depth and are equipped with a planting depth control means 24 to conduct stepless vertical movement of the press wheels 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soil covering method and soil covering device for a transplanter and is used for transplanting vegetables such as lettuce and cabbage.

[0002]

2. Description of the Related Art Soil seedlings are planted in a field at predetermined intervals while traveling by vertically moving planting cylinders, and both sides of the planted soil seedlings are pressed by crushing wheels to cover the soil. There is a technique that prevents the water from evaporating when the part is exposed to the air and improves the survival of the seedlings with soil.

[0003]

However, in the above-mentioned conventional soil covering technique, the soil covering by the vertically moving planting cylinder and the pair of left and right repressing wheels is applied after the planting of the soil seedlings is completed. The ring was rolling and pressing both sides of the seedling in the soil seedling. That is, the planting cylinder and the compression wheel are arranged separately in the front and rear in the traveling direction.

Therefore, after planting the soil-bearing seedlings, the branches and leaves may hang down and overhang on both the left and right sides.
In the adult seedlings, since the seedlings are growing large, the amount of the overhang is large, and when the presser wheel rolls in this state, the protruded branches and leaves are trampled by the presser wheel and the branches and leaves are torn off. In some cases, seedling collapse was induced, which resulted in poor viability of seedlings, which in turn reduced the amount of harvest due to missing plants.

Therefore, according to the present invention, by arranging the planting cylinder and the compression wheel, which are separated from each other in the running direction in the front-rear direction, so as to overlap each other in the front-rear direction, the branching of the planted soil-grown seedlings is prevented. It is an object of the present invention to provide a method and a device that enable covering of soil.

[0006]

According to the present invention, the soil seedlings P are planted at a predetermined interval in the field while traveling by the vertically moving planting cylinders 18, and both sides of the planted soil seedlings P are crushed by a presser wheel 1.
In the method of pressing and covering with soil in No. 5, the following technical measures are taken to achieve the above-mentioned object. That is,
The soil covering method according to the present invention is characterized in that soil is covered by the compression wheel 15 in a state in which the hanging of the branches and leaves P1 in the planted soil-bearing seedling P is prevented by the planting cylinder 18.

Further, the soil covering device according to the present invention is characterized in that the compression wheels 15 are arranged on both left and right sides of the upward movement locus Q through which the planting cylinder 18 that has entered the field exits from the field. Therefore, according to the present invention, the soil-grown seedlings P are planted in the field at a predetermined interval while traveling by the vertically moving planting cylinder 18, and when both sides of the soil-grown seedling P are covered with the crushing wheels 15, planting is performed. When the cylinder 18 rises, it will cover the soil with the branches and leaves P1 being pulled up and held to prevent the branches and leaves P1 from being torn off.

If the soil portion of the planted soil-bearing seedlings P is immersed from the field scene (ridge surface), rainwater will accumulate in this area and become rooted, while on the other hand, the soil area will become more visible than the field scene. Prominence causes evaporation of premature water, and therefore the adjustment of planting depth is delicate. Therefore, in the present invention, the compression wheel 15 is used for setting the planting depth (for gauge).
In addition, the depth can be finely adjusted by the stepless adjusting means 24.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 (A) shows a transplanter 1 for transplanting seedlings such as vegetables into a ridge, and in FIG.
Is located at the rear of the traveling body 2 and has a transplant device 3 and a steering handle 4
It is a walking type that has the above-mentioned structure and runs in the longitudinal direction across the ridges 5 while planting the seedlings P with soil such as cabbage and lettuce in the ridges 5 at predetermined intervals.

The moving direction of the transplanting machine 1 is called the front-back direction, and the lateral direction orthogonal to the moving direction is called the left-right direction. The traveling body 2 has a body frame 7 on the front of the mission case 6.
Is mounted and fixed in a forwardly projecting manner, and an engine 8 and the like are mounted on the machine body frame 7 to mainly configure the transmission case 6, the machine body frame 7, and the engine 8
Etc. are front wheels 10 and rear wheels (driving wheels) 1 provided on both left and right sides.
It is movably supported by 1.

The transplanting device 3 is provided on a transplanting frame 12 mounted on the rear side of the traveling machine body 2, and has a planting means 13 for planting the soil-bearing seedlings P on the ridges 5, and a seedling planted on the planting means 13. The seedling feeding device 14 for feeding, and the root of the planted seedling are covered with soil.
The main configuration is provided with a pair of left and right squeezing wheels 15 for squeezing and a perforating means 16 for forming a hole for planting in the multi-film M covering the ridge 5.

The transplant frame 12 includes a main frame 12A having a front portion fixed to the transmission case 6 and a movable frame 12B having a front portion pivotally connected to the transmission case 6 so as to be rotatable around the left and right axes. , Main frame 12A
A seedling supply device 14 is provided on the top, a steering handle 4 is attached to the rear end of the main frame 12A, and a planting means 13, a compression wheel 15, and a perforating means 16 are supported on the movable frame 12B.

As shown in FIGS. 2A and 3, the planting means 13 is provided with a planting cylinder 18 at the rear end of the parallel elevating link 17, and the parallel elevating link 17 is driven to move the planting cylinder 18 back and forth. It moves up and down while swinging, and the movement locus of the cylinder 18 is shown by a symbol Q. The planting cylinder 18 has a cylindrical body 18A having a rectangular opening in a plan view on an upper portion thereof, and a beak-shaped opener 18B which is openable and closable in the front-rear direction at a lower portion of the cylindrical body 18A.
The opener 18 is provided at the upper part of the movement locus Q.
B is received in the closed posture and the opener 18B is closed and the opener 18B is kept in the closed posture to form a planting hole in the field, in this example, the opener 18B is opened and the opener 18B is opened to plant the soiled seedling P. Opener 1 by moving upward while planting in the hole 5A
The operation of gradually closing 8B and shifting to the upper part of the locus Q is repeated, and the opener 18B is opened and closed by the opening and closing link means 19.

The compression wheels 15 are arranged on both left and right sides of the upward locus Q through which the planting cylinders 8 that have entered the field exit from the field, and in the illustrated example, the front end is rotated by the bracket 20 installed on the movable frame 12B. A support frame 21 that is rotatably supported is extended rearward, and is mounted in the middle of the support frame 21 via a bearing 22. Furthermore, the pair of left and right compression wheels 15 is shown in FIG.
As shown in FIG. 3B and FIG. 3, they are arranged in a slanting manner in an upwardly expanding manner when viewed from the front and rear sides. Therefore, the axle 15A thereof is tilted upward and is rotatably supported by the axle bearing 22. Both sides of the seedling P are pressed to cover the soil.

In covering this soil, the leaves P1 of the soil-bearing seedlings P1
1 by the opener 18B in the planting cylinder 18
By holding as shown in (B), the branches and leaves P1
The squeeze wheel 15 rolls over the soil in a state in which it is prevented from hanging down. That is, the branches and leaves P1 of the planted soil-bearing seedlings P are gradually closed by the openers 18B of the planting cylinders 18 and moved upward to prevent the branches and leaves P1 from hanging down. In this state, the pair of left and right compression wheels 15 cover the soil. This prevents the branches and leaves P1 from being trampled and prevents the branches and leaves P1 from being torn or broken.

The compression wheel 15 has a truncated cone shape as shown in FIGS. 2 and 3, and also serves as a gauge wheel for setting the planting depth. The compression wheel 15 extends over the support frame 21 and the stay 23. A planting depth adjusting means 24 for vertically moving 15 is provided. The planting depth adjusting means 24 is shown in FIG.
As shown by, the screw cylinder 24A that is fixedly attached to the rear portion of the support frame 21 and extends upward and rearward, and the attachment means 24B that pivotally supports the middle of the screw cylinder 24A to the stay 23.
And a screw rod 24C that is screwed into the screw cylinder 24A and has a grip 24D. By rotating the grip 24D from the handle 4 side, the support frame 23 moves up and down by advancing and retracting the screw feed, and the compression wheel 15 Moves up and down.

A fluid telescopic cylinder may be used instead of the screw feed, or a motor or the like may be used for driving. The seedling feeding device 14 is arranged on the front side of the seedling tray feeding device 26 that intermittently feeds the seedling tray 25 that accommodates a large number of soil block seedlings vertically and horizontally and the seedling tray 25 from the seedling tray 25. It is composed of a seedling dispensing device 27 which takes out the seedlings one by one and conveys them to the planting means 13.

In addition to the drive shaft 28 for driving the rear wheels 11, the mission case 6 has a first PTO shaft 29 extending in the left-right direction and a second PTO shaft extending upward and rearward as shown in FIG. 2 (A). 30 and is equipped with a first PTO shaft 29
Drives the planting means 13 and the multi-film punching means 16 via the winding transmission body 31, the cam link transmission body 32, etc., and the second PTO shaft 30 drives the seedling supply device 14.

In FIG. 1 (A), reference numeral 33 denotes a ridge height detecting roller, which swings the front and rear wheels 10 and 11 in the X and Y directions according to the ridge height by the detection signal. Therefore, the vehicle height is suitable for the ridge height. Further, in the illustrated example, a walking type transplanter is used, but a riding type may also be used, and multiple-row planting is also possible.

[0020]

As described in detail above, according to the present invention, since the soil can be covered without tearing or breaking the branches and leaves of the soil-grown seedlings planted, the seedlings can have good rooting ability and harvestability. improves.

[Brief description of the drawings]

FIG. 1 (A) is a side view of the entire transplanter, and FIG. 1 (B) is a detailed view of the soil cover for planting.

FIG. 2A is a detailed side view of a transplanted portion, and FIG. 2B is a cross-sectional view of a planting depth adjusting means.

FIG. 3 is a plan view of a transplant part.

[Explanation of symbols]

 3 Transplanting device 13 Implanting means 15 Squeezing wheel 18 Implanting cylinder

Claims (3)

[Claims] 1. A planting seedling (P) is planted at a predetermined interval in a field while traveling by a vertically moving planting cylinder (18), and a compression wheel (15) is provided on both sides of the planted soil seedling (P). In the method of pressing and covering with soil, the squeezing wheel (1) is used in a state where the hanging of the branches and leaves (P1) in the planted soil-bearing seedling (P) is prevented by the planting cylinder (18).
A method for covering soil of a transplanter, which is characterized by covering the soil according to 5). 2. The soil-grown seedlings (P) are planted at predetermined intervals in the field while traveling by the vertically moving planting cylinders (18), and the compression wheels (15) are provided on both sides of the planted soil-grown seedlings (P). In the device for pressing and covering with soil, a crushing wheel (15) is arranged on both left and right sides of an upward movement trajectory (Q) through which a planting cylinder (18) protruding into a field comes out of the field. Soil cover device. 3. The pair of left and right compression wheels (15) also serves to set a planting depth, and is provided with a planting depth adjusting means (24) for vertically moving the compression wheels (15) steplessly. The soil covering device for a transplanter according to claim 2.