JPH0130983Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to an agricultural granular material 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
Unlike hand-planted seedling cultivation, a nursery box is used. The size of this nursery 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. After a series of seeding operations such as sowing, covering with soil, and watering, the seedlings are kept at an appropriate temperature and humidity to ensure uniform germination. Therefore, they are placed side by side in a vinyl greenhouse. The method of fertilizing the seedling box is as follows:
It is not preferable to use the entire amount as base fertilizer, and most of the time it is used as additional fertilizer. In addition, since the seedling boxes are placed side by side in close contact with each other, in order to prevent the occurrence and spread of diseases, a control agent against pathogens is sprayed as part of post-emergence management.

The present invention relates to an improvement of a sprayer for spraying granular fertilizer or granular disinfectant for general seedling raising.

[Prior art and its problems]

Traditionally, granular disinfectants and granular fertilizers have been sown mostly by hand for small and medium-sized seedlings, using seedling boxes placed closely side by side in narrow plastic greenhouses, but in some cases. The sprayer is a shoulder-carrying or backpack-carrying type with a small turning radius, and is equipped with a dispersion plate with fan-shaped grooves under the hopper, which is connected to the storage tank via a gripping pipe.
-Refer to Publication No. 180750), but such spreaders were originally intended for use in fields.
When this sprayer is used to spray a large number of seedling boxes arranged closely in 5 or 6 rows (for example, when spraying a disinfectant, 50g per seedling box is sprayed), the error is approximately 10%. The conditions that are considered to be acceptable cannot be satisfied.

[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.

1 is an overall 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 side view taken along arrow B in FIG.

This embodiment is a sprayer used to spray granular fertilizer or disinfectant (for example, small pieces with a length of 2 mm) to a large number of rice seedling boxes arranged side by side. It is not a shoulder-carrying type or a backpack-type type, and the granular material a is placed in the storage tank 1 and is dispersed by holding a telescopic gripping pipe 2 in one hand. A flexible hose 4 is extended from the tip of the pipe 2 via a collar 3, and a fan-shaped sprayer is attached to the tip of the flexible hose 4 via a collar 5 so as to be rotatable with respect to the collar 5. It has a series of openings 6. These colors 3,5
A pair of auxiliary arms 7 and 8 consisting of two members each having one end fixed to the other are attached, and these auxiliary arms 7 and 8 are rotatably supported by each other at the other end and are configured to be bendable. . Although only one side of these auxiliary arms 7 and 8 is shown in FIG. 1, another of the same shape is attached to the opposite side of the drawing, forming a pair. Therefore, the fan-shaped dispersion port 6 is suspended from the grip pipe 2 like a lantern.

The fan-shaped dispersion port 6 is made entirely or on one side of a transparent material such as acrylic resin, and is formed in a mountain shape when viewed from arrow B in FIG. 1 and an inverted mountain shape when viewed from arrow C in FIG. The granules a can be evenly supplied to the elongated discharge roller section 9 attached to the lower end of the fan-shaped dispersion port 6. That is, as shown in FIG. 2, the discharge roller 10 in the discharge roller section 9 is
Its diameter is, for example, 1 cm, and its axial length is slightly shorter than the width of the seedling raising box. Therefore, the diameter of the gripping pipe 2 or the flexible hose 4 is
The discharge roller 10 has a smaller diameter than 2.7 cm, and
Since it is long, the fan-shaped dispersion port 6 is expanded into a fan shape in the plane seen by the arrow B, and narrowed in the plane seen by the arrow C.

Next, the discharge roller section 9 is constructed as shown in FIG. That is, the discharge roller 10 is located at a position offset by l from directly below the fan-shaped dispersion port 6.
built-in, and the rear wall 1 in the front-rear direction of the spray port 6
A partition plate 12 branched from the partition plate 12 is provided in the axial direction of the discharge roller 10 so as to cover the upper part of the discharge roller 10, and forms a supply port 13 opening in the horizontal direction at its lower edge. There is. The rear wall 11
The front wall 11' and the rear wall 11 facing each other extend to form a skirt portion 14. Therefore, when the discharge roller 10 rotates in the direction of the arrow in FIG. , once accumulated on the stepped portion 15 of the front wall 11', and then scooped up in fixed quantities from the supply port 13 opened in the horizontal direction, along the flow path 16 formed by the discharge roller 10 and the rear wall 11. It flows down and is discharged. Note that the metal discharge roller 10 has long grooves 17 formed on its surface in order to regulate the discharge amount of the particulate matter a and discharge it uniformly.

The transmission mechanism of the discharge roller 10 is as shown in FIGS. 3A and 3B. That is, a commercially available simple small motor 18 is fixed to the outer surface of the rear wall 11, and a horizontally installed drive shaft 20 is connected to the motor 18 via a speed reduction mechanism 19. A universal joint 21 is interposed in the middle of the drive shaft 20.
This is because the motor 18 and the speed reduction mechanism 19
If the position when mounting on the outer surface of the rear wall 11 is different from the position on the drive shaft 20 when the side reduction mechanism 22 described later is mounted on one side wall 23 of the fan-shaped dispersion port 6, The purpose is to absorb such errors and to actively induce vibrations in the transmission path of the motor 18 while it is being driven. The drive shaft 20 projects from the side wall 23 and drives the discharge roller 10 via a side reduction mechanism 22.

The speed reduction mechanism 19 includes a pinion 24 and a crown gear 2.
5, first reduction spur gear section 26, second reduction gear section 2
7. Consists of a third reduction spur gear portion 28.
Further, the side reduction mechanism 22 includes a reduction gear portion 30 with an idle gear 29 interposed therebetween. The deceleration mechanism 19 has a first U-shaped cross section that is locked by a locking portion provided at a proper position on the mechanism 19.
It is covered with a case 31. Further, the drive shaft 10 is covered with a gutter-shaped second case 32, and one end of the second case 32 is fitted into and locked in an arc-shaped hole bored in the side wall 23. Furthermore, the side reduction mechanism 22 has a side wall 23 and a screw 3 attached to the side wall 23.
It is covered with a lid 34 which is fixed at 3.

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 plastic greenhouse, the disinfectant is uniformly sprayed on the left and right seedling boxes while passing through the center passage of the group of seedling boxes arranged closely in 4 to 5 rows on one side. The disinfectant has previously flowed down naturally and filled up to the inside of the fan-shaped spray opening 6. Then, the operator grasps the gripping pipe 2 with one hand and positions the fan-shaped spraying port 6 on a predetermined box among these seedling-raising boxes.
Although the flexible hose 4 bends due to the weight of It is held and hung like a lantern. That is, for example, if the pipe 2 is located above the seedling box near the central passage, the pipe 2 will be inclined greatly, but the fan-shaped spray port 6 will be suspended vertically.
Furthermore, when positioned above the seedling box farthest from the passage, the grip pipe 2 becomes horizontal in order to extend the arms and the grip pipe 12 as much as possible, but the fan-shaped dispersion port 6 is also suspended vertically here. be lowered. As described above, although the angle of the gripping pipe 2 changes depending on the operator, the number of juxtaposed seedling boxes, and their positions, the fan-shaped dispersion port 6 is always vertical, and therefore the opening of the skirt portion 14 is always facing downwards. Therefore, when the motor 18 is turned on, the discharge roller 10 rotates, and the disinfectant inside the fan-shaped spray port 6 is
A fixed amount of seedlings is forcibly discharged into a designated nursery box in the form of a blind. If the operator walks at a substantially constant speed in this state, the disinfectant can be uniformly spread over the entire surface of each seedling box. Further, although the longitudinal direction of the skirt portion 14 of the fan-shaped dispersion port 6 is normally positioned perpendicular to the direction in which the worker moves, it is also possible to position the longitudinal direction of the skirt portion 16 parallel to the direction in which the worker moves. You can also spray it on the seedling box in front.

Here, in this embodiment, the rotation from the motor 18 is caused by a reduction gear mechanism 19 consisting of a group of several gears, a universal joint 21, a side reduction mechanism 2 consisting of a plurality of gears.
2 to the discharge roller 10,
These transmission mechanisms vibrate, thereby causing the fan-shaped spraying port 6 to vibrate slightly, and the disinfectant in the spraying port 6 is sprayed while flowing down from the skirt portion 14 and spreading without causing bridging.

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 vegetable seedlings.

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

[Effect of idea]

Since the fan-shaped dispersion port is provided via a flexible hose with an auxiliary arm attached, the fan-shaped dispersion port will always be suspended vertically no matter what angle the gripping pipe is held, and the dispensing roller will not be able to quantify the amount. Combined with the discharge and dispersion functions, it is possible to distribute particulate matter uniformly, preventing unnecessary scattering to neighboring seedlings.
Therefore, there is no double spraying. Especially,
It can be made more agile and suitable for raising delicate seedlings compared to the cultivation of many seedlings arranged side by side for greenhouse cultivation.

In addition, since the motor that drives the discharge roller is attached to the outside of the fan-shaped dispersion port, slight vibrations are generated by the motor and its transmission mechanism while it is being driven.
Since the fan-shaped dispersion port is slightly vibrated, the particulate matter is evenly dispersed from both sides even when the amount of granules stored in the fan-shaped dispersion port is reduced. Allows for uniform spraying.

Note that since the discharge roller is built in with a slight deviation from the fan-shaped dispersion port, if the rotation of the discharge roller is stopped, the dispersion can be cut well and falling of the granules can be prevented.

[Brief explanation of drawings]

Fig. 1 is a perspective view of an embodiment of the present invention, Fig. 2 is a sectional view taken from A to A in Fig. 1, A in Fig. 3 is a side view taken from arrow B in Fig. 1, and Fig. 3 is a section D in Fig. 1. An enlarged cross-sectional view, C shows an enlarged cross-sectional view of the F section of A. 1...Storage tank, 2...Gripping pipe, 4...
Flexible hose, 6... Fan-shaped spray port, 7, 8... Auxiliary arm, 10... Discharge roller, 18... Motor.

Claims (1)

[Scope of utility model registration request] A particulate matter storage tank to be carried at hand, a gripping pipe communicating with the tank, a flexible hose provided at the tip of the pipe and attached with a bendable auxiliary arm, provided at the tip of the flexible hose, The fan-shaped dispersion port has a built-in power-driven ejection roller, and a motor is attached to the outer surface of the fan-shaped dispersion port to drive the ejection roller. An agricultural granule spreader characterized by: