JPH0332323B2 - - Google Patents

Description

Detailed Description of the Invention "Industrial Application Field" The present invention relates to a seed box in which seeds to be delivered are housed, and a flat plate provided inside the seed box. Relating to a seed delivery device in a seeding machine, which is composed of a rectifier plate and a plurality of board-shaped rectifier guides that are similarly provided within the seed box below the rectifier plate and spaced apart from the rectifier plate. It is.

``Prior Art'' A device equipped with a hopper-shaped container and configured to sow a fixed amount of seeds stored in the container or a seed delivery device configured to send out seeds is disclosed in, for example, Japanese Utility Model Publication No. 377-15415. , Utility Model Application Publication No. 57-84805, etc.

As shown in FIG. 6, the seed container in the seeding machine disclosed in Japanese Utility Model Publication No. 37-15415 has a substantially cylindrical main body a and a funnel part b connected to the main body. and a cylindrical discharge port c. The seeds stored in the main body a are discharged from the funnel part through the discharge port c to the outside of the tank.

On the other hand, the device described in Japanese Utility Model Application Publication No. 57-84805 has a general structure consisting of a funnel-shaped hopper 30 and a feeder section 38 provided below the hopper, as shown in FIG. has been done. The hopper 30 has a vertical side wall 32, and the bottom wall 44A is provided at an angle with respect to this side wall. On the other hand, the feeder section 38 has a plurality of pockets 40,
When the pocket is aligned with the funnel 41, the material such as seeds that has entered the pocket is discharged from the tube 43 through the funnel.

"Problems to be Solved by the Invention" The seed container described in Utility Model Publication No. 37-15415 is equipped with a funnel part b, so that the seeds d inside
Although this is convenient for collecting and discharging the seeds in the center, there is a possibility that the seeds d may cause blistering in this funnel. In other words, as shown in Fig. 6, gravity W1, W2, W3 acts on the seed d, but among these gravity, the gravity W1, W3 acting above the funnel part b is horizontally moved by the funnel part b. component force in direction
P1 and P2 are generated, and since these component forces are opposed to each other, the seeds d are prevented from falling from the discharge port c due to gravity, and as a result, there is a possibility that blits may occur. Also, with this device, it seems impossible to uniformly sow a certain width at the same time.

On the other hand, since the hopper 30 disclosed in Japanese Utility Model Application Publication No. 7-84805 has a vertical side wall 32, at least one of the horizontal component forces P1 and P2 as described above does not occur. Therefore, an excellent effect that the blitz phenomenon is less likely to occur can be expected. However, the feeder portion 38 is provided with a pocket 40, which is connected to the funnel 41.
Seeds cannot be ejected unless they are moved to a position that aligns with the feeder, so seeds may get caught in the feeder and be damaged during movement. In addition, in order to improve the efficiency of sowing operations, it is required to sow a predetermined width of seeds at once, but this cannot be expected with this device, as is clear from the figure. Furthermore, manufacturing the feeder portion 38 is thought to require machining, which poses the problem of being expensive.

Therefore, the present invention has a low possibility of causing blit even if the amount of stored seeds is large and the amount of seeds to be delivered is small, and even if the main body of the device is tilted, the seeds can be delivered uniformly to a predetermined width. It is an object of the present invention to provide a seed delivery device in a seed sowing machine that can perform the following steps. Another object of the present invention is to provide a seed delivery device for a seed sowing machine that has a simple structure and can be manufactured using an inexpensive processing method such as sheet metal processing.

"Means for Solving the Problems" In order to achieve the above object, the present invention provides a seed box in which seeds to be delivered are housed, and a seed box provided in the seed box. Consisting of a flat rectifying plate and a plurality of board-shaped rectifying guides that are similarly provided within the seed box and below and apart from the rectifying plate, the seed box has a side wall and a bottom plate. and at least a front wall of the side walls is formed vertically or substantially vertically, and the bottom plate slopes downward from the front wall toward the opposite wall, and the downstream end thereof serves as a seed delivery port. The current plate has a downward slope toward the front wall of the seed box, and a slit-shaped seed flow path is formed between the downstream end thereof and the front wall, and the flow direction plate The rectifying guide is provided in the seed box so as to have a predetermined distance in the vertical direction between the passage and the bottom plate, and the rectifying guide is provided on the top surface of the bottom plate of the seed box.
They are provided at predetermined intervals along the downward slope from approximately directly below the seed flow path toward the seed delivery port in a substantially parallel manner.

"Operation" Since the present invention is configured as described above,
A predetermined amount of seeds are placed in a seed box and then moved, for example, over a field. At this time, when a person moves by hand, vibration or rocking due to the movement of the human body may occur, and when moving by mounting on existing mobile agricultural equipment,
The vibrations of the agricultural machinery or the vibrations of a vibrator separately installed in the device are transmitted to the device body.

As a result, vibrations are applied to the seed box, straightening plate, bottom plate, straightening guide, seeds, etc., and the seeds are uniformly distributed through the slit-shaped flow passage formed between the lower end of the straightening plate and the front wall of the seed box. It flows down onto the bottom plate located below with a predetermined width. Since there is a predetermined distance between the flow passage and the bottom plate, the seeds flow down, but when the seeds accumulate on the bottom plate, the accumulated seeds act as a kind of plug and the flow of seeds stops. Once the accumulated seeds are sent out, the flow begins again.

The seeds that have flowed down onto the bottom plate in this way are regulated by the multiple rectifying guides on the top of the bottom plate even if the main body of the device is tilted, and the seeds are spread evenly on the bottom plate without being biased to one side of the bottom plate. It is guided to the outlet and discharged outside the device.

"Example" Examples of the present invention will be described below with reference to FIGS. 1 to 5.

Now, referring to FIG. 1, the seed delivery device in the seeding machine according to the present embodiment includes a box-shaped seed box 3, a flat rectifying plate 11 provided in the box, and a rectifying guide 12. It is easy to understand that it is roughly constructed from the following. The seed delivery device of this embodiment is installed on a base 1 via buffers 2, 2, and is additionally equipped with a vibrator or vibration generator 4, 4', an opening/closing member 9, etc. This can be understood at first glance.

The seed box 3 has a substantially rectangular shape when viewed from above, and is formed as a box with an opening at the top from the side walls and the bottom plate 6. As shown in the figure, one side wall, that is, the front wall 3a, is formed vertically or approximately vertically, and the bottom plate 6 extends from the lower end of the front wall 3a to the opposite side wall 3a.
It is formed with a downward slope toward c. Near the downstream end 6a of the bottom plate 6, a part of the side wall 3c is opened to form a seed outlet 3d.

The current plate 11 has a flat plate shape as shown in FIGS.
It is provided on a downward slope toward a as follows. That is, the downstream end 11c of the current plate 11 and the front wall 3a
A slit-shaped seed flow passage 11b is formed at a predetermined interval between the current plate and the extension line 1 of the current plate.
The seed box 3 is provided so that a predetermined distance, that is, a height H is formed between a point 13 where 1a intersects with the front wall 3a and an upper end 15 of the bottom plate 6. In this way, since the rectifying plate 11 is provided with a height H, the seeds 5 in the seed box freely flow down when no seeds are accumulated on the bottom plate 6.

Although the rectifying guide 12 has a board shape,
The upper edges of both ends are as shown in Figure 4.
It is cut into a tapered shape. The seed box 3 is provided on the bottom plate 6 of the seed box 3 so that the long cut-off side is located on the upstream side. That is, the rectifying guides 12, 12 are arranged at a predetermined distance from the bottom plate 6.
They are provided parallel to each other along a downward slope from approximately directly below the seed flow path 11b toward the seed outlet 3d. In this way, a plurality of passages 12a, 12a are formed on the bottom plate 6 by the bottom plate 6 and the rectifying guide, as shown in FIG.

The seed delivery device according to this embodiment is equipped with a vibrating device, a seed falling path, an opening/closing member, etc. as accessories.

The vibrating device is composed of an eccentric rotating body or vibrating motors 4, 4, etc. provided in the space below the seed box 3 and the lower surface of the bottom plate 6. Further, the seed falling passages 8, 8 are composed of tubular or hose-like members, and the upper ends thereof are connected to the passages 12a, 1 on the bottom plate 6.
2a, the lower ends of which are widened such that the distance becomes progressively larger. Further, passages 8a, 8a can be connected to these falling passages.

As shown in FIGS. 1 and 2, the opening/closing member is composed of a slide plate 9 that is movable in the vertical direction by means of pulleys 9a, 9a, and the lower part thereof is made of rubber as shown in FIG. It is lined with 10 mag. The slide plate 9 has passages 12a, 12a.
It can be opened and closed at the same time, and even when closed, the tip is lined with rubber, so it won't damage the seeds. The lid body 20 covers the open end of the seed box 3 and includes an eaves portion 21 so as to cover the pulley 9a, and is provided with a handle 22 on the top surface.

Next, the operation of the above embodiment will be explained.

A predetermined amount of seeds 5 are put into the seed box 3, and the vibration device 4 is activated to move the seeds 5, for example, over a field.
At this time, the slide plate 9 is adjusted to an appropriate height via pulleys 9a, 9a. Then, vibrations are transmitted to the current plate 11, the bottom plate 6, the current guide 12, the seeds 5, etc., and the seeds 5 on the current plate flow down and onto the bottom plate 6 through the flow passage 11b. At this time,
As shown in Figure 4, gravitational forces W5 and W4 act on the seeds 5, and the gravitational force W5 produces a horizontal component force P3 due to the rectifier plate 11, but the gravitational force W4 acts in the vertical direction and this component force P3 is Since the seeds 5 act to cancel each other out, the seeds 5 fall downward. That is, although the downstream passage 11b is narrow in the form of a slit, there is little risk of bridging occurring in this portion.

When seeds accumulate or accumulate on the bottom plate 6,
The accumulated seeds act as a plug, stopping the flow, and when they are gone, the flow begins again. In this way, the downstream passage 1
1b also functions as a kind of opening/closing gate.

The seeds 5 that have fallen onto the bottom plate are passed through the rectifying guide 12,
12 restricts the movement in the lateral direction, and even if the main body of the device is tilted laterally, the seeds 5 flow downward in a uniform state without shifting, and are regulated by the slide plate 9 to flow down the passages 8, 8. It is sent to the ground. When the amount of seeds sent out is regulated by the slide plate 9, the flow down from the flow passage 11b is stopped, so that a large amount of seeds will not be deposited on the bottom plate 6. Therefore, the seeds 5 at the seed outlet 3d
The pressure due to gravity is small and does not cause blits in this area.

"Effects of the Invention" As detailed above, according to the present invention, the seed falling passage is formed by the downstream end of the rectifying plate provided at an angle and the substantially vertical front wall. Even in this narrow slit-like passage, seeds flow down without being stagnant. Further, since a bottom plate is provided below the bottom plate at intervals, the flow passage also functions as a gate. Therefore, according to the present invention, there is no need to work to eliminate blits, and the structure is simplified.
Furthermore, since a rectifying guide is provided on the bottom plate, the seeds are sent out in a uniform state across the entire width of the bottom plate without being lopsided in the lateral direction.

Further, the present invention is composed of a seed box, a rectifying plate, and a plurality of rectifying guides, all of which can be manufactured by sheet metal processing, so there is an advantage that it can be provided at low cost.

[Brief explanation of drawings]

1 to 5 show an embodiment of the present invention, FIG. 1 is a sectional view showing the whole, FIG. 2 is a side view taken along arrow A-A in FIG. 1, and FIG. 3 is an opening/closing member. FIG. 4 is an enlarged sectional view of the downstream passage portion, FIG. 5 is a side view taken along arrow B--B in FIG. 4, and FIG. 6 is a sectional view of a conventional example. 3... Seed box, 3a... Front wall, 3d... Seed delivery port, 6... Bottom plate, 11... Rectifier plate, 11b...
Downstream passage, 12... rectification guide.

Claims (1)

[Scope of Claims] 1. A seed box 3 into which the seeds to be delivered are stored, a flat rectifying plate 11 provided in the seed box, and a and a plurality of board-shaped flow straightening guides 12 provided below and apart from the flow straightening plate, the seed box having at least a side wall and a bottom plate, and at least the front of the side wall. The wall is formed vertically or substantially vertically, and the bottom plate is sloped downward from the front wall toward the opposite wall, and the downstream end thereof is formed as a seed delivery port, A slit-shaped seed flow passage is formed between the downstream end thereof and the front wall with a downward slope toward the front wall of the seed box, and a vertical direction between the flow passage and the bottom plate is formed. The rectifying guide is provided in the seed box at a predetermined interval, and the rectifying guide is provided on the upper surface of the bottom plate of the seed box.
A seed delivery device in a seeding machine, characterized in that the seed delivery device is provided in a substantially parallel manner from substantially directly below the seed flow path toward the seed delivery port at predetermined intervals along a downward slope. .