JPH0130982Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an agricultural granule spreader, and particularly to a granular fertilizer or granular disinfectant spreader used for seedling raising.

If we were to explain seedling raising in terms of rice cultivation, over 80% of rice cultivation is now done by mechanical transplantation, and we have entered an age where rice cultivation is synonymous with mechanical transplantation. The rice transplanter used for mechanical planting is
We use box-raised seedlings, which is completely different from hand-planted seedlings. The size of this seedling box is determined, for example, the external dimensions are 60cm long and 30cm wide, and the internal dimensions are 58cm high.
cm, width 28 cm, and depth approximately 3 cm. Modern seedling boxes are made of plastic and have many small holes in the bottom. Using such a seedling box, sow seeds, cover with soil,
After a series of seeding operations such as irrigation, the seedling boxes are placed side by side in a plastic greenhouse to maintain appropriate temperature and humidity to ensure uniform germination. As for the method of fertilizing in the seedling raising box, it is not preferable to use the entire amount as the base fertilizer, but to use a portion of the fertilizer as top dressing, or to use the entire amount as additional fertilizer. In addition, in order to prevent the spread of diseases caused by close juxtaposition, which is one of the post-emergence management methods, we spray pesticides against pathogens. As mentioned above, in box seedling raising, fertilizers or weeding machines are used as equipment related to seedling raising.

Therefore, the present invention relates to an improvement of a sprayer for granular fertilizer or granular disinfectant for raising seedlings.

[Prior art and its problems]

Conventional sprayers for granular disinfectants and granular fertilizers are used for small and medium-sized seedlings, as they use seedling boxes placed closely side by side in narrow plastic greenhouses, so most of them are used for hand-sowing, and some have a small rotation radius. A shoulder-carrying or backpack-carrying sprayer is used, which has a diffusion port with fan-shaped grooves under the hopper, which is connected to the storage tank through a gripping pipe.Such sprayers are used in fields. If such a sprayer is used to spray a large number of seedling boxes closely arranged in 5 or 6 rows, for example, when spraying disinfectant, each seedling box will spray about 50g, and the error will be approximately 10%. It is difficult to satisfy the conditions described above, and the state of dispersion becomes uneven.

[Means for Solving the Problems] The present invention has been devised in an attempt to solve such inconveniences, and the configuration of the present invention will be explained in detail with reference to embodiments shown in the accompanying drawings.

FIG. 1 is an overall perspective view of an embodiment of the present invention, and FIG. 2 is a sectional view taken along line A--A in FIG.

This example is a sprayer used for spraying granular fertilizer or disinfectant (for example, small pieces of 2 mm length) into a large number of rice seedling boxes arranged side by side.
Although not shown, the storage tank is of a shoulder type or backpack type, and the granules a are placed in the storage tank 1, the tank 1 is carried on one's back, and the extensible gripping pipe 2 is held in one hand to spread the particles. It is in the form of A flexible hose 4 is extended to the tip of the pipe 2 via a collar 3, and a mountain-shaped hopper is rotatably attached to the tip of the flexible hose 4 via a collar 5. It is equipped with 6. Auxiliary arms 7 and 8 are attached to these collars 3 and 5, one end of which is fixed to each other, and these auxiliary arms 7,
8 are rotatably pivoted to each other at the other ends, and are formed to be bendable. And these auxiliary arms 7, 8
Although only one side is shown in FIG. 1, an identical one is attached to the opposite side. Therefore, the chevron-shaped hopper 6 is suspended from the gripping pipe 2 like a lantern.

Next, the chevron-shaped hopper 6 is made entirely or on one side of a transparent material such as acrylic resin, and is formed into a chevron shape when viewed from arrow B and an inverted chevron shape when viewed from arrow C. The particles are evenly supplied to a long discharge roller section 9 attached to the lower end of the hopper 6. In addition, as far as it is seen from arrow C, it has a shape that is a smaller version of Lime Sower. As shown in FIG. 2, the discharge roller 10 in the discharge roller section 9 has a diameter of, for example, 1 cm, and an axial length slightly shorter than the width of the seedling box. Therefore, compared to the diameter of the gripping pipe 2 or the flexible hose 4, which is 2.7 cm, the chevron-shaped hopper 6 has a smaller diameter and is longer, so the chevron-shaped hopper 6 expands in the plane of the arrow B and expands in the plane of the arrow C. Here, it has a narrowed shape.

Next, as shown in FIG. 2, the discharge roller section 9 has a built-in discharge roller 10 at a position slightly offset from directly below the chevron-shaped hopper 6. A partition plate 12 extending from one side wall 11 of the hopper 6 is provided in the axial direction of the discharge roller 10 approximately in the upper center of the discharge roller 10 with a gap 13 therebetween.
A particle fall prevention guide plate 14' is installed below one side of 0.
It extends from the other side wall 11' of the hopper 6, and surrounds a part of the discharge roller 10 with a slight interval between the blocking guide plate 14'. The discharge roller 10
On the other side, a granule discharge guide plate 14 is fixed to the side wall 11 and suspended, and the discharge guide plate 14 allows the granules to be discharged through a gap 15 that is sufficiently larger than the gap 13 while preventing the particles from scattering. It surrounds approximately half of the roller 10. Then, the blocking guide plate 1
4' and the end of the discharge guide plate 14 form a discharge port 16. Therefore, when the discharge roller 10 rotates in the direction of the arrow in FIG. Instead of being flown down and discharged, the waste is temporarily collected on the discharge roller 10, and then is scooped up in a fixed amount and flowed down and discharged along the discharge guide plate 14.
The metal discharge roller 10 regulates the discharge amount of the particles a and discharges them uniformly.
The surface shape is as follows. That is, the third
As shown in the figure, it has an inclination angle of 60° in the reverse rotation direction,
A long groove 17 is formed by being bored over the entire length in the axial direction. In the figure, the sizes are m=1 mm and n=2 mm.

A commercially available simple small motor 18 is fixed to the outer surface of the side wall 11' of the chevron-shaped hopper 6 as the power for the discharge roller 10, and the power is transmitted to the motor 18 via a one-way clutch. The power source is a battery (not shown) installed near the . The power transmission case is shown at 19 in FIG.

This embodiment has the configuration described above, so when using this sprayer as a pest control machine, store granular disinfectant in tank 1, carry this pest control machine on your back, and place it inside a plastic greenhouse. enter. Inside the greenhouse, the disinfectant stored in tank 1 is uniformly sprayed on the left and right seedling boxes while passing through the central passage of the seedling boxes arranged closely in 4 to 5 rows on one side. It flows down by gravity and flows into the Yamagata hopper 6. Then, the operator grasps the gripping pipe 2 with one hand and positions the chevron-shaped hopper 6 above the seedling growing box. The flexible hose 4 bends due to the weight of the chevron hopper 6 itself, the introduced disinfectant, and the discharge roller section 9, but since the auxiliary arms 7 and 8 are attached, the gripping pipe 2 can be held at any angle. Even if the hopper 6 is held vertically, the chevron hopper 6 is always held vertically and suspended like a lantern. For example, when the pipe 2 is placed above the nursery box next to the aisle, the pipe 2 is inclined, but when it is placed above the nursery box furthest from the aisle, it is extended as much as possible so that the operator's arm is It is stretched out, and the grip pipe 2 is also spread horizontally. As described above, the angle of the gripping pipe 2 varies depending on the operator, the number of juxtaposed seedling boxes, and their positions;
6 is always vertical, and as a result, the outlet 16 is always open in a certain direction. Then, when the motor 18 is turned on, the discharge roller 10
rotates, and a certain amount of the disinfectant in the chevron hopper 6 is forcibly discharged into the seedling box below the discharge port 16 and in the form of a blind. Walking around in this condition, the seeds are spread as evenly as possible over the entire surface of each seedling raising box. Further, although the discharge port 16 of the chevron hopper 6 is normally located perpendicular to the walking direction of the worker, since the chevron hopper 6 and the collar 3 are rotatably mounted, the discharge port 16 can also be positioned parallel to the walking direction and sprayed on the seedling growing box in front.

Although this embodiment has been described using a seedling growing box, the present invention is not limited to this, and can also be used in a seedling growing pot for growing fruit and vegetable seedlings.

Since the present invention has been adopted with the above structure, it has the following effects.

[Effect of idea]

Since the chevron-shaped hopper is installed via a flexible hose with an auxiliary arm attached, the hopper is suspended vertically no matter what angle the gripping pipe is at, and the discharge port remains in a constant position, allowing the function of the discharge roller to be maintained. Combined with this, it is possible to uniformize the dispersion of grains, and there is no possibility of scattering to neighboring seedlings, and there is no double dispersion. In particular, it can be used for greenhouse cultivation where a large number of seedlings are placed side by side, and it is easy to operate and is suitable for raising delicate seedlings.

Furthermore, since the discharge roller is slightly offset from directly below the chevron-shaped hopper, it is possible to prevent the particles from falling even if the rotation of the discharge roller is stopped, and a one-way clutch is attached to the motor that drives the discharge roller. Therefore, when the motor is stopped, the discharge roller immediately stops, improving the spraying effect.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a sectional view taken along line A--A in FIG. 1, and FIG. 3 is a sectional view of the discharge roller. 1...Storage tank, 2...Gripping pipe, 4...
Flexible hose, 6... Yamagata hopper, 7, 8...
Auxiliary arm, 10...discharge roller.

Claims (1)

[Scope of utility model registration request] A granule storage tank to be carried at hand, a gripping pipe communicating with the granule storage tank, a flexible hose provided at the tip of the pipe and attached with a bendable auxiliary arm, and the tip of the flexible hose. provided for, and
An agricultural granule spreader consisting of a mountain-shaped hopper with a built-in power-driven discharge roller.