JP2964575B2 - cleaner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a cleaner for removing dust and dirt, and more particularly to a cleaner having a function of removing static electricity in order to prevent reattachment of dust and dirt.

(Prior Art) Conventionally, a brush cleaner for removing dust and dirt using an electrostatic action has been known. This is to use a synthetic fiber made of polypropylene or the like for the brush part and to adsorb and remove dust and dirt on the brush part by static electricity generated by friction between the fibers.

(Problem to be Solved by the Invention) In the above-described cleaner, dust and dirt are re-adhered. That is, the object to be cleaned from which the dust and dust are removed has a problem that the dust and dust easily adhere again due to strong electrostatic charge due to the static electricity of the cleaner. In recent years, OA equipment and AV equipment whose use frequency has been significantly improved generate a lot of static electricity, and in particular, dust and dirt are often attracted to a cathode ray tube. Dust and dirt cannot be completely sucked from the cathode ray tube to the brush portion, and further, there is a problem that dust and dirt easily adhere again due to static electricity of the cathode ray tube.

An object of the present invention is to provide a cleaner to which dust and dirt do not adhere again.

(Means for Solving the Problems) The present invention relates to a cleaner comprising: a cleaning unit made of a conductive material; and an electrostatic discharge electrode for discharging static electricity conducted from the cleaning unit to the air. A field effect nematic liquid crystal display is disposed between the electrostatic discharge electrode and the electrostatic discharge electrode, and the cleaning unit and the field effect type nematic liquid crystal display are connected by an input electrode. A gist of the invention is characterized in that the display is connected by an output electrode, and the input electrode and the output electrode are connected by a protection resistor.

The cleaning unit is an input unit for removing dust, dirt, and the like, and for conducting static electricity of the object to be cleaned. The conductive material used has a specific resistance of 10 ¹⁰ (ohm sensor) or less, and its material and shape are arbitrary. Specific examples of the material include a conductive synthetic fiber, a conductive rubber sheet, a conductive plastic sheet, a conductive woven fabric, a conductive nonwoven fabric, and the like. The shape may be a brush shape, a comb shape, a spatula shape, or the like. , Its size is also arbitrary.
In particular, those made by bundling conductive synthetic fibers,
Even if there are fine irregularities on the surface of the object to be cleaned, the brush can enter and remove dust and dirt,
It has the advantage that static electricity can be gradually discharged to every corner and that the object to be cleaned is not damaged, and the spatula made of conductive rubber sheet or conductive plastic sheet can clean a wide surface and remove static electricity. It has the advantage that it can be done at once.

Conductive synthetic fibers are conventionally known polyester-based, polyamide-based, polyacrylonitrile-based, polyethylene-based,
Various synthetic fibers, such as polypropylene and polyolefin, plated with a conductive metal, and treated with an aqueous solution containing copper sulfate and a sulfur-containing reduced product (for example, sodium thiosulfate) to give the synthetic fiber several percent or more of copper sulfide. Attached or contained, treated with an aqueous solution containing copper sulfate and an iodine-containing substance (for example, potassium iodide) to adhere or contain several percent or more of copper iodide to synthetic fibers, production of synthetic fibers In the process, 20% or more of a conductive substance such as copper powder or carbon black is kneaded, or carbon fibers obtained by carbonizing synthetic fibers. Conductive woven fabrics and conductive non-woven fabrics can be easily obtained by subjecting woven fabrics and non-woven fabrics to the same treatment as the above-mentioned fibers. It can be easily obtained by adding an active substance and molding.

The electrostatic discharge electrode is an output part for discharging static electricity conducted from the cleaning unit into the air. Electrostatic discharge electrodes are made of conductive synthetic fibers that are conductive and have a large surface area.
Although metal fibers and composite fibers can be used, those having a specific resistance of 10 ¹⁰ (ohm centimeter) or less, a fiber diameter of 100 μm or less, and a density of 50 g / m ² or more are preferable. As the conductive synthetic fiber, the conductive synthetic fiber described above can be used, and examples thereof include Celmec (manufactured by Kuraray Co., Ltd.), Sandalon (manufactured by Nippon Silk Co., Ltd.), and trading card (manufactured by Toray Industries, Inc.). As the metal fiber, a thinned fiber that forms a metal wire through a die can be used, and NASLON (manufactured by Nippon Seisen Co., Ltd.) can be used. The conjugate fiber is a metal-coated fiber, Metalian (Teijin Co., Ltd.)
SA-7, which is a fiber obtained by blending carbon particles with fiber
(Manufactured by Toray Industries, Inc.), Bertron (manufactured by Kanebo Corporation),
KE-9 (manufactured by Toyobo Co., Ltd.), Cracarbo (manufactured by Kuraray Co., Ltd.), and Alpha (manufactured by Unitika Ltd.). In particular, metal fibers are preferable in terms of durability.

The field-effect nematic liquid crystal display used in the present invention is a field-effect nematic liquid crystal display that uses nematic liquid crystal and changes the arrangement of molecules by an electric field. The structure of the liquid crystal display is such that a transparent conductive film connected to a pair of external input / output terminals is formed on the front surface, and a pair of transparent insulating substrates each having a polarizing plate disposed on the back surface are arranged so that the transparent conductive films face each other. A liquid crystal is sealed between the pair of transparent insulating substrates.

The connection between the cleaning unit and the electrostatic discharge electrode with the liquid crystal display can be made by directly contacting the input electrode of the liquid crystal display with the cleaning unit, or by contacting through another conductive member such as metal. Similarly, it is only necessary that the electrostatic discharge electrode is in contact with the output electrode of the liquid crystal display.

Further, the protection resistance between the input electrode and the output electrode is a resistance for preventing the destruction of the liquid crystal display due to static electricity, and may be several hundred kilohms or more. Carbon resistance, ceramic resistance, etc. can be used.

The use of the cleaner of the present invention is no different from conventional cleaners. That is, by cleaning or cleaning the surface of the cleaning part by contacting or abutting the cleaning part with the cleaning part, dust and dirt on the surface of the cleaning part and static electricity can be removed.

The electrostatic discharge electrode is preferably housed in an insulating case such as ABS, PP, or PE, because static electricity may move to the human body when directly touched with a hand or finger and may cause electrostatic charging of the human body. In this case, since the discharge speed of the electrostatic discharge electrode is slightly reduced, aerial discharge can be accelerated by forming a hole in a part of the insulating case.

Further, a field effect type nematic liquid crystal display is provided between the cleaning unit and the electrostatic discharge electrode so that it is possible to visually check whether or not static electricity is generated in a cleaning target portion of the OA device or the AV device. In this case, the input electrode of the liquid crystal display is connected to the cleaning unit, and the output electrode is connected to the electrostatic discharge electrode. When static electricity is input to the cleaning unit, the liquid crystal display displays it. When the static electricity is discharged from the electrostatic discharge electrode, it disappears and the generation and removal of static electricity can be confirmed.

(Operation) In the cleaner of the present invention, since the cleaning unit is made of a conductive material, when cleaning the object to be cleaned, the static electricity of the object to be cleaned moves to the electrostatic discharge electrode via the cleaning unit. Since the air is discharged from the electrostatic discharge electrode in the air, dust and dirt on the surface of the object to be cleaned have a weak adhesive force and can be easily removed, and do not adhere again. Further, generation and removal of static electricity can be confirmed by the liquid crystal display.

(Examples) Hereinafter, the present invention will be described in more detail with reference to examples.

Example 1 (FIG. 1) Reference numeral 1 denotes an insulating case made of ABS resin. Inside the insulating case 1 is a NASLON web (fiber diameter 8 μm, basis weight 200 g / m ² , Nippon Seisen Co., Ltd.) having a length of 5 cm, a width of 5 cm and a thickness of 0.5 cm.
Electrode discharge electrode 2 made of the same material as above), and about 10 μm of acrylic fiber, which is a conductive material, is treated with an aqueous solution containing copper sulfate and sodium thiosulfate to remove the conductive acrylic fiber to which copper sulfate is attached. Bundle hair length
A 50 mm brush-shaped cleaning unit 3 was fixed to the side wall of the insulating case 1, and a field-effect nematic liquid crystal display 4 was disposed between the electrostatic discharge electrode 2 and the cleaning unit 3. Further, the cleaning unit 3 and the liquid crystal display 4 are connected by the input electrode 5, and the electrostatic discharge electrode 2 and the liquid crystal display 4 are connected to the output electrode 6.
And the input electrode 5 and the output electrode 6 are connected by a protective resistor 7 to form a cleaner.

Comparative Example 1 Commercially available brush cleaner (brush part is acrylic fiber)
Was used.

Comparative Example 2 Commercially available brush cleaner (brush portion is nylon fiber)
Was used.

(Effect of the Invention) A cleaning test was performed using the cleaners obtained in Example 1 and Comparative Examples 1 and 2. Table 1 shows the results.

[Cleaning test] Plastic plate made of vinyl chloride (15 cm long, 20 cm wide)
Is charged to 10 KV, and fine carbon black is electrostatically attached.

Using the cleaners obtained in Examples and Comparative Examples 1 and 2, carbon black was removed, and the charging voltage of the plastic plate was measured. After the measurement, the fine carbon black was brought closer to the plastic plate, and the presence or absence of redeposition was observed.

As described in detail above, the cleaner according to the present invention removes dust, dirt, and the like, and at the same time, removes static electricity, so that it does not adhere again and is very excellent. The presence / absence can be checked, and it can also be used as a checker for checking the presence / absence of static electricity.

[Brief description of the drawings]

The drawings show an embodiment of the present invention, and FIG. 1 is a longitudinal sectional view. DESCRIPTION OF SYMBOLS 1 ... Insulating case, 2 ... Electrostatic discharge electrode, 3 ... Cleaning part which has conductivity, 4 ... Liquid crystal display

Claims (1)

(57) [Claims] 1. A cleaner comprising: a cleaning portion made of a conductive material; and an electrostatic discharge electrode for discharging static electricity conducted from the cleaning portion into the air, wherein a cleaner is provided between the cleaning portion and the electrostatic discharge electrode. A field effect type nematic liquid crystal display is arranged, and the cleaning unit and the field effect type nematic liquid crystal display are connected by an input electrode, and the electrostatic discharge electrode and the field effect type nematic liquid crystal display are connected by an output electrode. The input electrode and the output electrode are connected by a protective resistor.