JP2003328312A - Dust scatter preventive cover for powder and granular material spreader - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cover that can prevent the scatter of dust without an adverse effect on spreading in automatically spreading a powder and granular material such as sand and rubber chips on an artificial lawn ground surface by a spreader. <P>SOLUTION: The cover 10 comprises a frame body 11 connected to the spreader 1, and a sheet 12 put on the outer surface of the frame body. The frame body 11 is sized not to obstruct spreading, provided with wheels 13 at the lower face and detachably connected to the spreader 1. The sheet 12 is formed to bring the lower edge into contact with the artificial lawn 4 in the state of being put on the frame body. A material positioned on the opposite side to the material of the artificial lawn 4 in an electrification sequence table is selected as the material of the sheet 2. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used, for example, when mounting an artificial turf ground containing sand, by attaching powder particles such as sand and rubber chips to a machine that scatters on the ground surface.
Dust scattering prevention cover.

[0002]

2. Description of the Related Art Construction of artificial turf ground with sand is usually
A method is adopted in which sand or rubber chips are later sprinkled on the surface of the artificial grass laid earlier, and these are filled between the grass to complete it. A self-propelled spreader is generally used for this spraying. This spraying machine is a rotating brush provided at the lower end discharge port of the hopper, and is a type in which sand and rubber chips continuously discharged from the hopper are splashed backward by the brush and sprayed. During spraying work, sand and rubber chips are evenly sprayed on the ground surface while the sprayer is self-propelled.

[0003]

However, in the above-mentioned spraying machine, since sand or rubber chips are splashed off with a brush and sprayed, dust spatters violently during spraying, which floats in the air and the surrounding environment. There is a problem of polluting. Especially when constructing at an indoor stadium,
This scattered dust seriously deteriorates the working environment. To prevent this, it is conceivable to cover the spraying area with a sheet, etc., but if it is simply covered, the sprayed powder and granules collide with the sheet surface, resulting in uneven spraying and uniform spraying. The function is impaired, and the fine dust that has leaked from the edge of the sheet rises up in the air, and it is impossible to prevent the dust from scattering.

In view of the above points, the present invention is to provide a cover capable of preventing the scattering of dust without impairing the uniform spraying performance of the granular material. Another object of the present invention is to provide a dust scattering prevention cover that can be easily attached to a spreader and used.

[0005]

The technical means of the dust scattering prevention cover of the present invention comprises a frame body connected to the spreader and a sheet covering the outer surface of the frame body. It has a size that does not give it, the lower edge of the covered sheet is in contact with the artificial grass surface, and the material of the sheet is that static electricity is generated by rubbing with the artificial grass. is there.

Further, as the material of the sheet, it is preferable to select a material positioned on the opposite side of the material of the artificial grass in the charging sequence table. Further, it is preferable that wheels are attached to the frame body so that they can be detachably connected to the rear portion of the spreader. In addition, it is preferable that the connecting portion between the frame and the spreader has a pin rotation stopping type at the upper portion and an insertion / sliding sliding type at the lower portion.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of a dust scattering prevention cover of the present invention will be described based on an embodiment of the drawings. The spreader 1 is self-propelled, and has an engine (not shown) mounted on the front part of the vehicle body and a hopper 2 for storing powder particles on the rear part. A rotary brush 3 is provided below the discharge port at the lower end of the hopper 2, and the granular material continuously discharged from the hopper 2 is splashed backward by the rotary brush 3 and scattered. The spraying machine 1 sprays the powder particles uniformly on the ground surface while running on the laid artificial grass 4.

The shatterproof cover 10 includes a frame body 11 forming a skeleton, and a sheet 12 covered on the outer surface of the frame body 11.
Consists of. Since it is necessary to generate static electricity on the sheet 12, the material of the sheet 12 is selected so that static electricity easily occurs in relation to the material of the artificial turf. Furthermore, sheet 1
No. 2 is configured so that its lower end comes into contact with the artificial turf 4 when covered, and static electricity is generated by rubbing with the turf as the spreader 1 travels. The amount of static electricity generated at this time is determined by the relative relationship between the grass and the sheet material.
Select. FIG. 2 is a charging sequence table. In this table,
Since the original combination in the opposite position is preferable for the generation of static electricity, for example, when the artificial turf contains polyester resin or polyethylene resin, use a sheet of polyamide resin or the like as the material of the sheet, and When the artificial grass contains polyamide resin, a polyester resin sheet or the like is used. As a result, a large amount of static electricity is generated on the sheet 12 by rubbing against the artificial turf, and the static electricity can well adsorb dust on the sheet surface.

The frame 11 is made of steel or the like, and has a size having a sufficient area and an upper space so as not to spoil the spraying. In the example, the length is about 90c.
m, width is about 180 cm, height is about 60 cm, and wheels 13 are attached to the lower part. Further, the frame body 11 is detachably connectable to the spreader 1. In addition, since the external shape of the spreader differs depending on its type, according to the shape of the spreader to be used,
The connecting portion of the frame body 11 is appropriately designed and manufactured. In the example,
The structure of the connecting portion between the frame body 11 and the spreader 1 is as follows:
5 is a pin rotation stopping type, and the lower connecting portion 16 is a pulling-out sliding type.

That is, as shown in FIG. 4, the structure of the upper connecting portion 15 is such that one short pipe 17 attached to the hopper 2 and two short pipes 18 attached to the frame 11 are inserted by inserting the pin rods 19. Combined and hinged. As a result, the frame body 11 is vertically rotatable about the pin rod 19 as a fulcrum. 20 is a split pin for preventing the rod from coming off.

In the structure of the lower connecting portion 16, as shown in FIG. 5, a short rod 22 is provided in a protruding shape on a hinge 21 attached to the hopper 2, while a short pipe 23 is provided on the frame body 11.
Are provided in a protruding shape, and the short rod 22 and the short tube 23 are coupled to each other in a removable manner. Therefore, the frame 1
1 is capable of slight tilting, leaving the connection alone,
It is also possible to make a large upward rotation. As a result, the frame 11 well follows the vertical movement of the wheel 13 due to the unevenness of the ground surface, and the frame 11 can be largely lifted upward for cleaning the inside of the seat.

Next, how to use the above-mentioned scattering prevention cover will be described. First, the frame 11 is attached to the rear part of the spreader 1, and the sheet 12 is put on the outer surface of the frame 11. At this time, the lower edge of the sheet 12 is brought into contact with the artificial grass 4. Further, the edge of the sheet 12 is fixed to the outer wall surface of the hopper 2 with an adhesive tape or the like so that the scattered dust does not leak out from the gap. Next, while the spreader 1 is running at a constant speed, the stored sand, rubber chips, and the like are caused to flow out from the lower end discharge port of the hopper 2, and the rotating brush 3 bounces this back and sprays it. Since there is a sufficient space inside the cover 10, sand or the like can be uniformly sprayed without disturbing the spraying. In addition, as the lower edge of the sheet 12 and the artificial grass 4 rub against each other as the spreader runs, static electricity is generated on the sheet, and the fine dust that has risen up due to the spraying is attracted by the static electricity, and
Adsorb to the inner surface of 2. As a result, it is possible to disperse the powder particles without causing the dust to be scattered to the outside. The dust adhering to the inner surface of the sheet 12 is appropriately removed after the spraying work is completed.

The results of various tests conducted on the present invention are as follows. (Test 1) Artificial grass Artificial grass sheet with sand containing a pile containing polyethylene resin Polyamide resin sheet with a thickness of 1 mm Spreading rubber chips with a particle size of 0.6 to 2.0 mm 2.5 kg / m ² Speed: 20 km / h Spraying time: 10 minutes Two types of sheets, one with the bottom edge of the sheet that contacts the artificial turf and the other that does not contact the artificial turf, were sprayed under the above conditions. The amount of rubber powder was examined. The amount of adhesion on the inner surface of the sheet of 50 cm × 50 cm was 25 g in the case of contact and 10 g in the case of non-contact. From this, the effect of dust adsorption by static electricity was found.

(Test 2) Artificial Grass Artificial grass with sand containing polyamide resin (1), 1 mm thick polyamide resin sheet (2), 1 mm thick polyester resin sheet Other conditions , Same as test 1. In a test in which the type of sheet was changed as described above, the amount of dust attached was 18 g for the polyamide sheet and 26 g for the polyester sheet. As a result, it was found that the amount of dust adhered differs depending on the relative relationship between the artificial turf and the sheet material, and that the adsorption efficiency can be increased by selecting the sheet material.

(Test 3) Dispersed product Silica sand having a particle size of 0.21 to 1.15 and other conditions are the same as those in Test 1 (sheet contact). The amount of dust attached was 32 g. From this, it was found that it also has an adsorption effect on silica sand.

The present invention is not limited to the above-mentioned embodiments, but can be freely modified within the scope of the claims. In particular, the shape of the frame body 11, the connection structure between the frame body and the spreader, the shape and type of the seat 12, and the structure of the spreader are arbitrary.

[0017]

Since the dust scattering prevention cover of the present invention covers the spraying area largely, the sprayed particles do not collide with the sheet surface, the spraying performance is not impaired, and the sand or rubber chips are evenly distributed on the ground surface. Can be sprayed. In addition, static electricity is generated on the sheet by rubbing against the artificial turf, and scattered dust is adsorbed on the inner surface of the sheet and does not leak outside, so it does not cause environmental pollution, especially when working indoors. Sometimes very effective.

According to the second aspect of the invention, since the electrification sequence table is used for selecting the material of the sheet, the dust adsorption performance can be effectively enhanced.

According to the third aspect of the present invention, the cover can be easily connected to the spreader, so that the cover can be freely attached to and detached from the spreader according to the need of work, and the workability is good.

According to the fourth aspect of the present invention, since the frame body can be tilted in the vertical direction with respect to the spreader in the mounted state, it is not affected by the unsteady ground, and the cover can be opened wide upward. This is convenient for removing dust adhering to the sheet.

[Brief description of drawings]

FIG. 1 is a side view of a partial cross section of a cover of the present invention in a use state.

FIG. 2 is a charging sequence table.

FIG. 3 is a plan view showing a state in which a frame is connected to the spreader.

FIG. 4 is a plan view of an exploded state of an upper connecting portion between the spreader and the frame body.

FIG. 5 is a plan view of an exploded state of a lower connecting portion between the spreader and the frame body.

[Explanation of symbols]

10 covers 11 frame 12 sheets 13 wheels 15 Upper connection 16 Lower connection part 17, 18 Short tube 19 pin rod 21 Hinge 22 short rod 23 Short tube

Claims (4)

[Claims] 1. A frame body connected to a spreader and a sheet covering the outer surface of the frame body, the frame body having a size that does not hinder the spraying, and the bottom edge of the covered sheet has A dust scattering prevention cover for a powder and particle spreader in which static electricity is generated by rubbing against artificial grass as the material of the sheet that contacts the surface of the artificial grass. 2. The material of the sheet, in the electrification table,
The dust scattering prevention cover of the powdery or granular material spreader according to claim 1, wherein a material located on the opposite side of the material of the artificial grass is selected. 3. The dust scattering prevention cover for a powder / granular spreader according to claim 1, wherein wheels are attached to a lower surface of the frame, and the frame is detachably connectable to a rear portion of the spreader. 4. The dust scattering prevention cover for a powder / granular spreader according to claim 3, wherein the connecting structure of the frame and the spreader is a pin rotation stopping type at the upper part and a pull-out sliding type at the lower part.