JP2583920Y2 - Dust removal device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust remover of the type for sucking dust attached to the surface of an object to remove the dust.

[0002]

2. Description of the Related Art Conventionally, as a method of removing dust adhering to the surface of an object, a roller made of an elastic material such as rubber having an adhesive layer formed on the surface is rolled on the surface of the object to be cleaned. There are a method of adhering and removing dust on the layer, a method of sucking dust with a vacuum type so-called vacuum cleaner, a method of blowing compressed air out of a slot, and sucking dust with a vacuum slot in the vicinity thereof. As a method of removing by vacuum suction, for example, there is a dust removing device disclosed in Japanese Patent Application Laid-Open No. 1-28437.

In this dust removing apparatus, a pair of blade portions having a concave curved surface portion on the outer surface are disposed at a predetermined interval in a direction substantially perpendicular to the traveling direction of the belt-shaped traveling body. The leading edge of the leading end thin portion is brought into close contact with the surface of the belt-shaped traveling body in a non-contact state, a gap is formed between the surface and the leading edge, and a vacuum device is connected to the blade portion to form a gap. It is configured such that outside air is sucked into the space between the blades from the portion.

[0004] In this dust removing device, due to the above structure, the air flow generated in the gap compresses the air boundary layer formed on the surface of the belt-like traveling body.
Fine particles in the air boundary layer can be removed from the belt-like traveling body. Further, it is described that since the tip thin portion of the blade portion is not in contact with the surface, there is an effect that the surface is not damaged .

[0005]

Among the above-mentioned prior arts in which dust adheres to the adhesive layer, when the transparent glass or the liquid crystal substrate is cleaned, the adhesive substance slightly adheres to the cleaning surface. However, it may adhere and remain.
In the case of the vacuum type, an air boundary layer is generated.
There is a problem. That is, when air is jetted onto a flat object, an air boundary layer is generated due to the flow of air on the surface of the flat object. However, even when the air is sucked, an air flow is generated and thus an air boundary layer is similarly generated. Therefore, dust existing inside the air boundary layer cannot be sucked even if sucked by vacuum. Therefore, in order to absorb these dusts, a considerable dust absorbing power is required. However, since there is always an air boundary layer,
There is always dust that cannot be sucked.

Therefore, there is also known a method in which an ultrasonic element is provided at an air blowing port, and dust is released by creating an air boundary layer "fluctuation" by ultrasonic sound pressure. However, when "fluctuations" are created by ultrasonic waves, originally low-frequency waves have higher sound pressure and punching power, and thus easily create "fluctuations" in the air boundary layer. However, it is considered that the "fluctuation" force in the ultrasonic wave is actually weak. As an example, if you hold your hand near the woofer cone with an audio speaker, the sound pressure is felt as wind pressure, so this can be understood.

Therefore, in the case of using ultrasonic waves, an object to be cleaned is immersed in water and dust is released from a wall surface by a shock wave due to cavitation.
In this case, the object to be cleaned becomes wet, and not only those that should not be wet cannot be used, but also those that may be wet require a drying step. In addition, it was not so effective for a material having many irregularities.

The present invention has been made in view of such a situation of the prior art, and its purpose is to contact a surface to be cleaned.
The "fluctuation" force on the air boundary layer on the surface
To remove dust present on the surface to be cleaned together with air.
It is an object of the present invention to provide a dust removing device capable of actually sucking and removing dust .

[0009]

In order to achieve the above-mentioned object, the present invention provides a suction port and a suction port on a surface facing a surface to be cleaned.
And ultrasonic vibration brushes are provided respectively
The main body connected to the suction means and the ultrasonic vibration
And a ultrasonic generating element for driving the brush, the dust remover for removing dust by sucking dust such present in the cleaned surface from the suction port together with air by said suction means,
The ultrasonic vibration brush is in a non-contact state with the surface to be cleaned.
In the state, it vibrates in the air boundary layer of the surface to be cleaned.
It is characterized by being set.

[0010] In this case, the body portion is constructed from a rotatable drum or non-rotatable box body, in any
However , the ultrasonic vibrating brush is provided so as to vibrate in the air boundary layer of the surface to be cleaned without contact with the surface to be cleaned.
Is determined .

[0011]

[Action] In the above configuration, the ultrasonic vibrations generated by the ultrasonic generating element is transmitted to the ultrasonic vibration brush, an air boundary layer cleanup target plane is forced to ultrasonic vibration by the brush. This disturbs the air boundary layer
Therefore, even dust such air boundary layer is ejected from the air boundary layer is sucked from the suction port.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG . 1 is a schematic diagram of a dust removing apparatus according to the present invention.
A schematic sectional view is shown. According to this, this dust removal device
Reference numeral 20 denotes a fixed door having a rectangular section in which the inside is a dust collection chamber 14.
A ram 10 is provided.

Fixing facing object surface (cleaning target surface) 7
A suction port 12 is formed at the center of the facing surface 11 of the drum 10.
Ultrasonic vibrations are provided on both sides of the suction port 12.
Brushes 13 are provided. Furthermore, the dust collection chamber 1
An ultrasonic wave generating element 15 is provided at the bottom of the inside 4.

A suction means (not shown ) is connected to the dust collecting chamber 14.
Have been. The suction means is a known suction pump (so-called suction pump).
A vacuum pump), and a dust collecting chamber in the fixed drum 10.
By sucking the air of 14, from the suction port 12
Outside air is sucked into the dust collection chamber 14, and at the same time, the fixed
The dust around the ram 10 is also sucked and removed.

The dust removing device 20 constructed as described above is
The ultrasonic vibration brush 13 advances into the air boundary layer 7 on the object surface 7.
At a position where it does not touch the object surface 7
It is set to perform a dust removal operation.

Accordingly, the air boundary existing on the object surface 7 is
The sound wave vibration from the ultrasonic wave generating element 15 is transmitted to the boundary layer 16.
Fluctuated by the ultrasonic vibration brush 13
The air boundary layer 16 becomes thinner and easier to suck
In addition, dust in the air boundary layer 16 is outside the air boundary layer 16.
It is released and sucked from the suction port 12.

At this time, the air boundary layer 16 has "Yura".
Of the dust adhering to the object surface 7
Is promoted, and even dust is easily sucked.
The frequency of the ultrasonic vibration brush 13, a 19KHz
Although it is desirable that the chair is about 27 KHz,
15KH for the purpose of giving fluctuation to the boundary layer
The same effect can be obtained with z or less.

Such a non-contact type dust removing device 20 is
So that the sonic vibration brush 13 must not touch at all
(For example, a liquid crystal display on which a color filter is formed)
This is particularly useful for transparent electrode substrates for panels.

As described above, according to the above embodiment, the ultrasonic vibration
"Fluctuation" of the air in the air boundary layer 16 due to the motion
Combined with a dust-type dust collection function,
Efficiently removes dust on the surface of an object that was difficult to remove
Can be well excluded.

[0021]

[Effects of the Invention] As described above, according to the invention,
For example, using an ultrasonic vibration brush,
Giving a large "fluctuation" to the air boundary layer without contact
Can effectively remove dust without contact
Dust can be removed efficiently even on uneven surfaces that were not
You.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a dust removing apparatus according to an embodiment of the present invention.
FIG.

[Explanation of symbols]

7 Object surface (cleaning target surface) 10 Fixed drum 11 Opposing surface 12 Suction port 13 Ultrasonic vibration brush 14 Dust collection chamber 16 Air boundary layer

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-58-49130 (JP, A) JP-A-52-128740 (JP, A) JP-A-59-146079 (JP, A) 25824 (JP, U) Japanese Utility Model Showa 57-152252 (JP, U) (58) Field surveyed (Int. Cl. ⁶ , DB name) B08B 1/00-11/04 A47L 9/04

Claims (1)

(57) [Scope of request for utility model registration] A suction port provided on a surface opposed to the surface to be cleaned;
Ultrasonic vibration brushes are provided respectively,
A main body connected to suction means, and the ultrasonic vibration brush
And a ultrasonic generating element for driving the at dust removing device for removing dust by sucking dust such present in the cleaned surface from the suction port together with air by said suction means, said
Ultrasonic vibration brush is not in contact with the surface to be cleaned
In order to vibrate in the air boundary layer of the surface to be cleaned,
A dust removing device characterized in that it is specified .