JPH035213Y2 - - Google Patents

Description

[Detailed explanation of the idea] "Industrial application field" This proposal relates to a seeding device.

"Prior Art" When sowing soybean seeds, it is important to sow two seeds at equal intervals in the seeding furrow at the same location. In conventional seeding devices, the seeding roller or delivery roller is provided at a high position from the seeding groove, so the seeds tend to scatter one by one, making it difficult to sow two seeds at the same location. Therefore, the inventor of this application created two through holes for seeding.
We developed a device that places soybean seeds in parallel and drops one seed from each through these two holes, but since soybean seeds are mixed in large and small sizes, the holes are clogged with large ones. There were easy defects (Jikko No. 44-31606, Jitko No. 45-26577, Jikko No. 60-
No. 38334).

``Problems to be solved by the invention'' The purpose of this invention is to reliably sow two soybean seeds at equal intervals in the seeding furrow formed after tilling with a rotary tiller.

``Means for solving the problem'' This proposal includes a tilling rotary installed in the rear machine frame of the tractor, a seeding groove forming wheel at the rear of the rotary, and a ratchet wheel pivotally supported at the rear of the rotary. , a tilling machine comprising a seeding device having a seeding roller rotated by the ratchet wheel located between the ratchet wheel and the roller, and a cylindrical machine casing located directly above the seeding groove on the machine frame; The machine is equipped with a seeding port facing the seeding groove on the lower surface of the machine's casing, a cylindrical seeding roller with an opening on one side is built into the machine's casing, and a seed storage chamber with an opening on its lower end is provided inside the roller. A seed supply pipe is connected to the side surface of the machine casing, and seeding holes are bored at equal intervals on the circumferential surface of the roller, and the holes are drilled in the direction of the central axis of the roller. The seeding device is constituted by a seeding device in which the circumferential portions of two circular through holes intersect with each other to form one pot-shaped through hole.

``Operation'' Therefore, the tractor 9 advances through the cultivated land, rotates the tilling rotary 10 provided on the rear working machine, and after tilling the land, the sowing groove 2 is formed by the sowing groove forming roller 12 provided on the rolling pressure roller 11. is formed, and the ratchet wheel 1
4 also rotates, and along with the rotation, the seeding roller 5 rotates within the cylindrical machine casing 3. In this state, when soybean seeds are fed from the seed supply pipe 7 into the seed storage chamber 6 with an opening at the lower end, these seeds enter the sowing hole 8 in batches of 2 seeds and enter the seeding groove 2 from the seeding port 4 in batches of 2 seeds. The seeds fall and are sown in two rows in the same groove 2 at equal intervals. Since the seeding hole 8 forms a single pot-shaped hole, relatively large seeds 23 can be produced.
can pass through (see Figure 3), so at least two grains can fall into the groove 2 in a cluster without becoming clogged with seeds, and there is no risk of scattering.

"Example" Machine frame 1 connected to the rear hitch of tractor 9
A tilling rotary 10 is provided at the rear of the rotary 10, and a compacting roller 11 is provided at the rear of the rotary 10.
Rolling wheels 12, 1 for forming seeding grooves 2, 2 in 1
2 is installed protrudingly. A ratchet wheel 14 in contact with the ground 13 is pivotally supported at the rear of the wheels 12, 12, and a sprocket provided on a support shaft 15 of the ratchet wheel 14 and a sprocket provided on a rotating shaft 16 are connected by a chain 17. However, as the ratchet wheel 14 rotates, the rotating shaft 16 can be rotated. Both ends of this rotary shaft 16 are inserted into cylindrical machine casings 3, 3 located directly above the seeding groove 2, and a cylindrical seeding roller 5 with an opening on one side disposed inside the machine casing 3 is inserted into both ends of the coaxial shaft 16. establish. A seed storage chamber 6 with an open bottom end is fixed to the machine casing 3 inside the roller 5, and a seed supply pipe 7 is connected to the side of the machine casing 3 at the upper part of the chamber 6. A seeding port 4 facing the groove 2 is provided. The inner circumferential surface of the roller 5 thus constructed has through-holes 8 for seeding at equal intervals.
A guide plate 18 is provided in contact with the outer circumferential surface of the roller 5 in the gap between the inner circumferential surface of the machine casing 3 corresponding to the lower end opening of the storage chamber 6 and the outer circumferential surface of the roller 5. The lower end of the guide plate 18 faces the seeding port 4. As shown in FIG. 3, the guide plate 8 has two circular through holes drilled in the direction of the central axis (rotation axis 16) of the roller 5, and the circumferential portions of the holes intersect with each other to form a single potbell-like shape. This is to form a through hole. In addition, 19 in the figure is a brush disposed between the storage chamber 6 and the inner surface of the roller 5, 20 is a seed storage tank, 21 is a chain box, 22 is a boundary line drawing tool, and 23 in FIG. 3 is a large size. Seed 23' is a small size seed.

``Effects'' Since the present invention is constructed as described above, it is possible to sow at least two soybean seeds in clusters at equal intervals in the seeding furrow 2 formed after tilling, regardless of the size of the soybean seeds, thereby reducing the scattering of seeds. This is something that can be prevented.

[Brief explanation of the drawing]

Figure 1 is a vertical sectional view showing the seeding device of the present invention, Figure 2
The figures are a longitudinal side view taken along line A-A in Figure 1, Figure 3 is an enlarged front view taken along line B-B in Figure 2, Figure 4 is an exploded perspective view of the seeding device, and Figure 5 is a side view of the tiller. 6 is a perspective view of FIG. 5. DESCRIPTION OF SYMBOLS 1... Machine frame, 2... Seeding groove, 3... Cylindrical machine casing, 4... Seeding port, 5... Cylindrical seeding roller with one side open, 6... Seed storage chamber with bottom end open, 7... Seed supply pipe, 8...through hole for sowing.

Claims (1)

[Scope of utility model registration request] A tilling rotary is installed in the rear machine frame of the tractor, a seeding groove forming wheel is provided at the rear of the rotary, a ratchet wheel is pivotally supported at the rear of the rotary wheel, and a tiller is provided between the rotary wheel and the aforementioned rotary wheel. In a tilling machine equipped with a seeding device having a seeding roller rotated by the same ratchet wheel, a cylindrical machine casing located directly above the seeding groove is provided on the machine frame, and a cylindrical machine casing located directly above the seeding groove is provided on the lower surface of the machine casing. A cylindrical seeding roller with an opening on one side is built into the housing of the machine, and a seed storage chamber with an opening on the lower end is provided inside the roller, and the seed supply pipe of the storage chamber is connected to the side of the housing of the machine. seeding holes are formed at equal intervals on the circumferential surface of the roller, and the circumferential portions of the two circular holes are formed in the direction of the central axis of the roller. A seeding device in which the holes intersect with each other to form a single pot-shaped hole.