KR20080108189A - Static electricity prevention chair - Google Patents

Abstract

The present invention is a chair comprising a chair body (10) consisting of a backrest (11) and a seatrest (12) and a chair leg (20) supporting the chair body (10), wherein the backrest (11) and a seatrest are provided. The upper surface of (12) is covered with a first conductive sheet 13 having a surface resistance of 105 Ω / sq to 1010 Ω / sq, and a surface resistance of 105 Ω / on the lower surface of the seat support 12. The second conductive sheet 14 woven with silver so as to be less than or equal to sq is covered, and the chair leg 20 is characterized by having conductivity.

Description

Static electricity prevention chair

1 is a perspective view of a conductive chair according to the present invention,

FIG. 2 is a view illustrating a state in which the first and second conductive sheets are covered on the surface of the backrest / seatrest of FIG. 1.

10 ... chair

11 ... backrest

12 ... seating

13 ... first conductive sheet

14 ... Second Conductive Sheet

20 ... legs

30 ... wheels

40 ... armrest

The present invention relates to an antistatic chair capable of not only generating static electricity but also further radiating static electricity generated in a human body to the outside.

Static electricity is a phenomenon in which electric charges accumulated by contact or separation, friction, or impact of a material are momentarily discharged and are frequently occurring in daily life. Since static electricity is generated in a very small space, it may not be felt well, but the instantaneous voltage generated by the static electricity reaches tens of thousands of volts. Therefore, static electricity does not have a great influence in daily life, but has a great influence in workplaces dealing with electronic circuits or flammable materials that integrate a large number of devices in a small space.

Therefore, many efforts have been made to eliminate static electricity in workplaces sensitive to static electricity.

The present invention has been made to solve the above problems, and an object of the present invention is to provide an antistatic chair capable of suppressing the generation of static electricity to remove the unwanted effects of static electricity.

In order to achieve the above object, the antistatic chair according to the present invention,

A chair including a chair body (10) comprising a backrest (11) and a seatrest (12) and a chair leg (20) supporting the chair body (10), wherein the backrest (11) and the seatrest (12) The first conductive sheet 13 having a surface resistance of 105 Ω / sq to 1010 Ω / sq is covered on the upper surface of

On the lower surface of the seat support 12, a second conductive sheet 14 woven with silver is covered so that the surface resistance thereof is 105 Ω / sq or less, and the chair leg 20 has conductivity. It is characterized by.

In the present invention, the first conductive sheet 13 is implemented by coating a synthetic resin containing an antistatic agent on the leather / leather, or by weaving with carbon, or by coating a synthetic resin containing an antistatic agent on the fabric do.

In the present invention, the second conductive sheet 14 is a fabric containing a silver or a verb. In the present invention, the second conductive sheet 14 further includes a conductive wheel provided on the leg of the chair.

Hereinafter, with reference to the accompanying drawings, the antistatic chair according to the present invention will be described in detail.

1 is a perspective view of a conductive chair according to the present invention, Figure 2 is a view showing a state in which the first, second conductive sheet is covered on the surface of the backrest / seat support of FIG.

As shown, the antistatic chair according to the present invention includes a chair body 10 having a backrest 11 and a seat back 12, and a chair leg 20 supporting the chair body 10. In addition, a wheel 30 may be installed at the lower end of the chair leg 20, and armrests 40 may be installed at both edges of the seat rest 12.

The upper surfaces of the backrest 11 and the seatrest 12 of the chair body are covered with a first conductive sheet 13 having a first surface resistance. In addition, a second conductive sheet 14 having a second surface resistance is covered at the lower end of the seat support 12.

The first conductive sheet 13 is a sheet having a surface resistance of 105 Ω / sq to 1010 Ω / sq, and absorbs static electricity generated from a person seated in a chair. In this embodiment, the surface resistance of the first conductive sheet 13 has a value of 107 Ω / sq.

The first conductive sheet 13 may be implemented by leather, leather or fabric.

When the first conductive sheet is implemented as leather / leather, it is realized by coating a synthetic resin containing an antistatic agent on the surface of the leather / leather. Antistatic agents used here are typically carbon, zinc oxide coated with aluminum, titanium oxide or potassium titanate, tin,

Timon-coated or the like can be used. In addition, the first conductive sheet 13 can also be implemented in the form of a fabric. In this case, the fabric is woven with carbon yarn to make it conductive. However, the first conductive sheet is formed by coating a synthetic resin containing an antistatic agent on the fabric.

May manifest. The second conductive sheet 14 should have a lower surface resistance than the first conductive sheet. To this end, we have to weave a very conductive silver or verb, but it is preferable to weave the silver or verb together with polyester, nylon or the like. The surface resistance of the second conductive sheet 14 thus made should be 105 Ω / sq or less. In this embodiment, the surface resistance of the second conductive sheet 14 has a value of 103 Ω / sq.

Here, the surface resistance of the first conductive sheet 13 on the upper surface of the backrest 11 and the seatrest 12 should be greater than the surface resistance value of the second conductive sheet 14 on the lower surface of the seatrest. This is because the most common static electricity generated in the human body, the static electricity is the second

In order to flow to the conductive sheet 14, the surface resistance value of the first conductive sheet 13 must be larger than the surface resistance value 14 of the second conductive sheet.

If the surface resistance of the first conductive sheet 13 is smaller than 105 Ω / sq, there is a possibility that the current flowing to the bottom flows back. If the surface resistance is larger than 1010 Ω / sq, static electricity will not flow. When the surface resistance of the second conductive sheet 14 is greater than 105 Ω / sq,

Since the static electricity flowing from the first conductive sheet 13 does not flow to the second conductive sheet 14, the surface resistance value of the second conductive sheet 14 is smaller than the resistance value of the first conductive sheet 13.

The wheel 30 and the armrest 40 are made of a conductive resin to have conductivity.

In the above structure, the static electricity that may be generated when the user is seated on the chair is passed through the first conductive sheet 13, the second conductive sheet 14, and the leg 20, and the ground and conductive wheels (grounded). Through 30) to the ground. On the other hand, when the bottom is made of a non-conductive material, the static electricity flows through the first conductive sheet 13 to the second conductive sheet 14, the static electricity is discharged to the outside by the second conductive sheet (14). Therefore, the static electricity that may be generated in the chair flows to the floor or is discharged into the air through the second conductive sheet, so that static electricity is not generated.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom.

As described above, according to the functional shoes according to the present invention, the static electricity that may be generated after sitting on the chair is discharged to the outside via the first conductive sheet and the second conductive sheet immediately, thereby preventing the occurrence of static electricity and thus Undesired effects that may be caused by it can be excluded.

Claims (2)

A chair including a chair body (10) comprising a backrest (11) and a seatrest (12) and a chair leg (20) supporting the chair body (10), wherein the backrest (11) and the seatrest (12) The first surface of the sheet 12 is covered with a first conductive sheet 13 having a surface resistance of 105 Ω / sq to 1010 Ω / sq, and a surface resistance of 105 Ω / sq on the lower surface of the seat holder 12. The second conductive sheet 14 is woven with silver so as to be covered with the antistatic chair, characterized in that the chair leg 20 is conductive. According to claim 1, The first conductive sheet 13 is implemented by coating a synthetic resin containing an antistatic agent in leather / leather, or by woven with carbon yarn, or by coating a synthetic resin containing an antistatic agent on the fabric Antistatic chair, characterized in that to implement.

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