JP2897018B2 - Seeding machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a sowing machine for sowing seeds in a field.

[0002]

2. Description of the Related Art A conventional seeder will be described with reference to FIGS. The seeding machine 20 has seed feeding holes 29 at predetermined intervals on the outer periphery at the center of the machine body 24 supported by the grounding wheel 22 and the crushing wheel 23, and the grounding wheel 2 that rotates as the seeding machine advances.
A feeding roll 27 that rotates in conjunction with the shaft 2 is pivotally supported. A seed storage case 26 is provided above the seed storage case 26, and a seed hopper 25 is further provided thereabove.
6, a partition plate 34 is provided obliquely downward from above the payout side 33, and a gap between the tip of the partition plate 34 and the inclined portion 38 of the seed storage case 26 as a flow passage for seeds. Is provided. Seed storage case 26
The tip of the partitioning brush 28 is provided on the side surface of the feeding side 33 of the lower opening by screwing so as to rub against the outer periphery of the feeding roll 27.

[0005] Behind the cutting brush 28, a delivery roll 2 is provided.
An elastic seed guide plate 30 that guides the seeds 31 immediately after passing through the undercutting brushes 28 to the lower drop position is pumped up by a seed feeding hole 29 provided on the outer circumference of the feeding roll 27. An arc-shaped guide portion 30a that contacts and covers the guide portion 30a, a curved portion 30b that follows the upper portion, curves in a direction away from the feeding roll 27, and then moves upward, and an attachment portion 30c whose tip is bent rearward at a right angle, Further, the arc-shaped guide portion 30a is screwed to the body 24 so as to be constantly urged toward the pay-out roll 27 by the elasticity of the curved portion 30b. The packing 32 for closing the lower opening of the inclined portion 38 of the seed storage case 26 has
7 is screwed to the side surface of the inclined portion 38 of the seed storage case 26 so as to rub the outer periphery of the seed storage case 7. Below the pay-out roll 27, a groove forming device 37 having a covering soil plate 36 connected rearward is provided.
There is a windbreak plate 35 provided inside. The handle 21 is provided on the body 24 so as to rise rearward.

Accordingly, when the seed 31 is filled in the seed storage case 26 and placed in the field, and the seeding machine 20 is advanced, the feeding roll 27 rotates toward the square cutting brush 28 in conjunction with the rotation of the contact wheel 22. The seeds 31 that move and flow down on the feeding roll 27 are continuously sent to the raising brush 28 and reach the raising brush 28, and the seeds 31 stored in the seed feeding holes 29 are moved below the raising brush 28. Then, the seeds are guided by the seed guide plate 30 and sent to the seed dropping position at the lower end of the seed guide plate 30, from which they fall into the field for seeding. The remaining seeds 31, whose progress has been interrupted by the raising brush 28, are gradually turned upward and turned to the original position, and flow down from the gap between the tip of the partition plate 34 and the inclined portion 38 of the seed storage case 26. Seeds 31
Is turned over again and sent in the direction of the cutting brush 28.

[0005] In this manner, the seeds are sown sequentially while circulating in the space B clockwise (FIG. 4 (a)).
However, the seed portion 31 of the seed guide plate 30 in an abnormal state in which the seed 31 that has been pumped up by the seed feeding hole 29 and passed through the cutting brush 28 has jumped out of the outer periphery of the feeding roll 27.
a, the upper portion of the guide portion 30a is pushed by the seed 31a that has protruded from the outer periphery of the feeding roll 27. When the upper part of the guide part 30a is pushed, the feeding roll 27
The guide portion 30a which has been in contact with the outer periphery of the
The seed 31b guided by the guide portion 30a is located in the seed feeding hole 29 in front of the seed 31a protruding from the outer circumference of the feeding roll 27 since the seed 31b is separated from the outer circumference of the feeding roll 27.
Is not guided to the seed drop position at the lower end of the guide portion 30a and is sown by dropping into the field on the way, so that there is a problem that the seeding pitch is incorrect and sowing cannot be performed with high accuracy (FIG. 4).
(B)).

[0006]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and has been made in consideration of the above-mentioned problems. It is an object of the present invention to provide a sowing machine that can be sowed without causing a problem as in the above-described conventional sowing machine even when sent to the guide unit.

[0007]

According to the present invention, there is provided a seeding machine comprising: a feeding roll having feeding holes at predetermined intervals on an outer periphery;
A seed storage case installed above the feeding roll, and a seeding machine including a seed guide plate that covers the outer periphery of the feeding roll from a position immediately after coming out of the seed storage case to a seed falling position, wherein the seed guide plate is An arc-shaped guide portion that contacts and covers the outer periphery of the feeding roll, a curved portion that follows the upper portion and curves in a direction away from the feeding roll and goes downward, and a position below the level of at least the upper end of the guide portion ahead of the curved portion. When the guide portion is constantly urged toward the feeding roll by the elasticity of the curved portion, and a force is applied to an upper portion of the guide portion in a direction of separating from the outer periphery of the feeding roll, the guide portion is fed to a lower portion thereof. The force acting in the direction in which the roller comes into close contact with the roll acts.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a seeding machine according to the present invention will be specifically described with reference to FIGS. The seeding machine 1 shown in FIGS. 1 and 2 is a machine body 4 supported by a ground contact wheel 2 and a pressure-reducing wheel 3.
A seed hopper 5 is provided above the hopper 5, and a seed storage case 6 is continuously provided below the seed hopper 5. A feeding roll 7 that rotates in conjunction with the grounding wheel 2 is pivotally supported at the lower opening. Dispensing side 18 of lower opening of seed storage case 6
A sectioning brush 8 is provided on the seed storage case 6 on the side where the seeds 15 come out so as to rub the tip of the brush 8 on the outer periphery of the feeding roll 7. A partition plate 12 is provided in the internal space of the seed storage case 6 from the upper side of the feeding side 18 to the obliquely downward direction, and a seed flow-down passage between the tip of the partition plate 12 and the inclined portion 13 of the seed storage case 6. Is provided. Also, the inclined portion 13 of the seed storage case 6
A packing 16 for closing the lower opening of the seed storage case 6 is screwed to the side surface of the inclined portion 13 of the seed storage case 6 so as to rub the lower surface against the outer periphery of the feeding roll 7.

[0009] A delivery roll 7 is provided below the cutting brush 8.
An elastic seed guide plate 10 that guides the seed 15 immediately after passing through the seed feeding hole 9 provided on the outer periphery of the seed 15 and passing under the cutting brush 8 to a lower drop position comes into contact with the outer periphery of the feeding roll 7. An arc-shaped guide part 1 covering this
0a, an upper portion thereof, a curved portion 10b curved downward in a direction away from the feeding roll 7 and directed downward, and a mounting portion 10c at a position lower than the level of at least the upper end of the guide portion 10a. Is always urged toward the feeding roll 7 by the elasticity of the curved portion 10b, and when a force in a direction of pulling away from the outer periphery of the feeding roll 7 acts on the upper portion of the guide portion 10a, a direction in which the lower portion comes into close contact with the feeding roll 7 And is screwed to the body 4. Below the feeding roll 7, there is a groove forming device 17 having a covering soil plate 16 connected to the rear, and a windbreak plate 19 for preventing the seeds falling from the feeding roll 7 from receiving wind is provided inside the groove forming device 17. It is provided at the bottom. The handle 11 is provided on the body 4 so as to rise rearward.

Next, the operation of the seeder will be described. When the seeds 15 are put in the seed storage case 6, the seeding machine 1 is placed on the field, and the handle 11 is pushed to move the seedling case 1, the grounding wheel 2 rotates, and the feeding roll 7 turns rearward in conjunction with the rotation of the grounding wheel 2. And the inclined portion 1 of the partition plate 12 and the seed storage case 6
The seeds 15 flowing down from the gap between the seeds 3 are sent backward, and when the seeds 15 reach the cut-off brushes 8, they are hindered from moving forward, are turned upwards, are reversed, and move in the original direction. 6 together with the seeds 15 flowing down from the gap with the inclined portion 13, they are again inverted and sent backward. In this way, the seeds 15 that have been sequentially pumped into the various child feeding holes 9 while smoothly circulating in the space A are separated by the cutting brush 8.
, Is guided by the seed guide plate 10, falls from the seed drop position at the lower end thereof, passes through the windbreak plate 19, and falls into the seeding groove formed by the groove generator 17, and the soil covering plate The soil is covered by 16 and crushed by the crushing wheel 3. Thus, seeding is performed on the field at predetermined intervals.

If the seeds 15 which have been pumped into the seed feeding holes 9 of the feeding roll 7 and have passed under the cutting brush 8,
When the seed is fed to the seed guide plate 10 in an abnormal state in which it is not correctly stored in the seed feeding hole 9 and protrudes from the outer circumference of the feeding roll 7, the seed 15 a that protrudes from the outer circumference comes into contact with the outer circumference of the feeding roll 7, and the feeding roll 7 The upper portion of the guide portion 10a of the seed guide plate 10 that covers the outer periphery of the feed roller 7 is subjected to a force acting in a direction in which the upper portion of the guide portion 10a is supported by the attachment portion 10a. Is separated from the outer periphery, and the lower part thereof is a feeding roll 7.
Elastically deform in the direction in which it comes into close contact with the outer periphery of

Therefore, the seeds 1 guided forward of the seeds 15a sent to the seed guide plate 10 in a state of being protruded from the outer periphery of the feeding roll 7 and guided by the lower portion of the guide portion 10a.
5b does not fall on the way and is securely guided to the seed drop position at the lower end of the guide portion 10a and falls into the field. Can be. Although the above embodiments have been described with reference to a hand-pressed seeder, the present invention can be implemented in a seeder such as a seeder for tailor drawing or a seeder for truck ter-attach, and is limited to the implementation of the hand-pressed seeder. is not.

[0013]

According to the present invention, the seeds 15 that have been pumped into the seed feeding holes 9 and have passed under the cutting brushes 8 are not correctly stored in the seed feeding holes 9 and have protruded from the outer periphery of the feeding roll. The seeds 15a that have been sent to the seed guide plate 10 and have protruded from the outer periphery come into contact with the outer periphery of the feeding roll 7,
The upper portion of the seed guide plate 10 that covers the seed guide plate 1 even if a force in the direction of pulling away from the outer periphery of the feeding roll 7 acts.
0 is elastically deformed with its mounting portion 10c as a fulcrum, the upper portion of the guide portion 10a is separated from the outer periphery of the feeding roll 7,
The lower portion has an effect of acting in a direction in which the lower portion comes into close contact with the feeding roll 7, and is located in front of the seed 15 a sent to the seed guide plate 10 in an abnormal state protruding from the outer periphery of the feeding roll 7 and located below the guide portion 10 a. Seeds 15b guided by
Since seeding is performed by being guided to the seed drop position at the lower end of the guide portion 10a without dropping on the way as in the prior art, there is an effect that the seeding can be performed without causing a deviation of the seeding pitch. The seeding machine 1 is capable of sowing with higher accuracy than the machine 20.

[Brief description of the drawings]

FIG. 1 is a side view including a partial cross section of a seeder according to an embodiment of the present invention.

FIG. 2 (a) is a side sectional view of a main part of the seeder of FIG. 1, and FIG. 2 (b) is a side cross-sectional view of a main part of the seeder of FIG. 1 in a state where seeds are protruded from an outer periphery of a feeding roll and sent to a seed guide plate. (B).

FIG. 3 is a side view including a partial cross section of a seeder according to a conventional technique.

4 (a) is a side sectional view of a main part of a conventional seeder, and FIG. 4 (b) is a side cross-sectional view of a main part of the seeder of FIG. 3 in a state where seeds are protruded from an outer periphery of a feeding roll and sent to a seed guide plate. b).

[Explanation of symbols]

 1, 20 Seeding machine 2, 22 Grounding wheel 4, 24 Body 6, 26 Seed storage case 7, 27 Feeding roll 8, 28 Cutting brush 9, 29 Seed feeding hole 10, 30 Seed guide plate 10, 30a Guide part 10b, 30b Bending part 10c, 30c Attachment part 12, 34 Partition plate 13, 38 Inclined part 15, 15a, 15b Seed 31, 31a, 31b Seed

Claims (1)

(57) [Claims] A feed roller having feed holes at predetermined intervals on an outer periphery thereof; a seed storage case installed above the feed roll; and a seed dropping from a position immediately after the feed roll has come out of the seed storage case. In a seeding machine having a seed guide plate that covers up to the position, the seed guide plate is in contact with the outer periphery of the feeding roll and has an arc-shaped guide portion that covers the same, and is curved downward in a direction away from the feeding roll following the upper portion and downward. A curved portion heading and a mounting portion at a position lower than the level of at least the upper end of the guide portion ahead of the curved portion, and the guide portion is constantly urged to the feeding roll side by the elasticity of the curved portion,
A seeding machine characterized in that when a force is applied to the upper portion of the guide portion in a direction of pulling away from the outer periphery of the feeding roll, a force in a direction in which the lower portion is in close contact with the feeding roll is applied.