KR200426601Y1 - Chiars having antistatic function - Google Patents

Abstract

The present invention relates to a work chair having an antistatic function, wherein the seat cushion portion 20 is mounted on a chair plate 11 such as a wood bending body and a synthetic resin injection molded body having various configurations that can be rotated on a chair leg 10 made of metal. A working chair having at least a part of a rotation shaft portion (12), a leg arm (13), and a chair leg (10) to which the chair plate (11) is fixed; The seat cushion portion 20 fixed to the chair plate 11, by filling the filling sponge 24 on the bottom plate 25, on the filling sponge 24, high wear resistance synthetic fibers, natural fibers, A conductive sponge 22 sewn on the cushion fabric 23, such as leather, is sewn as a sewing needle transfer agent 21, and the conductive fabric 22 is formed on the chair plate 11. (26-1) is electrically connected to form a conductive passage.

Festival, Task Chair, Challenger

Description

Chair having antistatic function {Chiars having antistatic function}

1 is a perspective view of an exemplary shape of a chair implemented in a work chair having an antistatic function of the present invention.

Figure 2 is a perspective view showing only the seating plate removed the cushion portion in the working chair having an antistatic function of the present invention.

Figure 3 is a bottom perspective view of the chair of Figure 1 for explaining the electrical static elimination function of the working chair having an antistatic function of the present invention.

Figure 4 is a partially broken perspective view and partially enlarged view of the section for explaining the configuration of the working chair having the antistatic function of the present invention.

FIG. 5 is a cross-sectional view taken along line A-A of FIG. 3 showing a working chair having an antistatic function of the present invention.

* Description of the symbols for the main parts of the drawings *

10: chair legs

11: seating plate

12: rotating shaft

20: cushion

24: conductive sponge

The present invention relates to a work chair having an antistatic function.

There are various attempts and applications to reduce defects by discharging the static electricity generated by using it in the working environment where static electricity is generated, such as clean rooms for manufacturing electronic parts, and work clothes, work aprons, work gloves, coating mats. The back is raised.

In addition to this configuration, the antistatic function should be considered in the case of the worker's chair, and in the case of the chair, it is also a major component because it acts as an electric passage for conducting static electricity emitted from the antistatic work clothes or the antistatic gloves to the antistatic mat on the floor. .

Conventionally, even when using a chair for general work without considering the antistatic function of the working chair and the operator wears a grounded strap to the ground, or in the configuration to give the antistatic function to the chair had the following major industrial problems.

Conventional work chairs having a static elimination function is made of conductive material incorporating conductive carbon, such as a conductive material made of a cushion portion of the chair to lower the static electricity via the chair leg of the lower metal material, or carbon yarn, microfiber yarn The structure in which the cushioning part of the chair was formed using the woven fabric which mixed the antistatic yarn of the back at equal intervals in the longitudinal direction, etc. is known.

However, the above-described conventional configuration is made of a cushion portion of the chair using a conductive material made of artificial leather incorporating conductive carbon, so that it is difficult to absorb moisture from the human body of the worker, making the working environment worse and forming. There is a problem that the cost is very large.

In addition, in the case of a configuration in which a cushioning portion is formed using a woven fabric which is mixed with other conventional constituents such as carbon conductive yarn and microfibrous conductive yarn at equal intervals in the longitudinal direction and the like, a certain amount of production or more is required when weaving the fabric. It is difficult to meet a small amount of order production because it is economical only when weaving in bulk

More importantly, even if we make up the cushion section of the chair by weaving the microfiber conductive yarn together, the wear is extremely premature due to frequent seating and detachment of the worker. As a result, the static elimination circuit is short-circuited and thus the antistatic function is lost.

Therefore, the setting of the thickness of the conductive yarn to ensure the antistatic function and the setting of the thickness of the conductive yarn for weaving should be considered at the same time.

The present invention has been devised in view of the problems of the conventional work chair having the antistatic function as described above, by guaranteeing the economical efficiency of weaving, it is possible to meet the order of the user individually in various designs and colors, and minimize the wear of the conductive yarn It is an object of the present invention to provide a work chair having a static elimination function with an increased lifespan.

The work chair having the antistatic function of the present invention has an additional object to increase productivity and applicability by making it suitable for small orders in the configuration.

Task chair having an antistatic function according to the present invention for achieving the above object;

The working chair having the antistatic function of the present invention together with the accompanying drawings will be described in more detail.

1 is a perspective view of an exemplary shape of a chair implemented in a work chair having an antistatic function of the present invention, FIG. 2 is a bottom perspective view of the chair of FIG. 1 for explaining an electric antistatic function of a working chair having an antistatic function of the present invention. 3 is a partially broken perspective view and a partially enlarged view of the section for explaining the configuration of the work chair having a static elimination function of the present invention, Figure 4 is a AA line of FIG. It is a cross section taken along.

Working chair having an antistatic function of the present invention can be applied to a variety of shapes and sizes depending on the work site and is shown in the drawings is an exemplary configuration.

In FIG. 1, which shows a typical work chair 1, a configuration of a work chair having an antistatic function of the present invention is applied.

The seat cushion part 20, which the worker is seated on the chair plate 11 formed of the wood bending body, the synthetic resin injection molded body, etc., which can be rotated on the chair leg 10 made of metal, and the worker's back closely adhere to each other. Having a separate back cushion portion 40 is a configuration of a general work chair.

The chair plate 11 having such a configuration is firmly fixed to the pivot shaft 12 by a bolt or the like as shown in the bottom view of FIG. 2, and the pivot shaft 12 is inserted into the leg arm 13 of the chair leg 10. It is rotated.

Thus, the chair 1 for working in this configuration forms a series of electrical conduction paths along the seat cushion portion 20-the pivoting shaft portion 12-the leg arm 13-the chair leg 10.

With respect to such a conventional configuration, the present invention provides an antistatic function to the seat cushion portion 20 and the back cushion portion 40 which are fixed on the chair plate 11 and contact the buttocks of the worker.

The seat cushion portion 20 and the back cushion portion 40 are as shown in the partial fracture perspective view of FIG. 4 and the cross-sectional view of FIG. 5 showing the seat cushion portion 20,

A conductive filling sponge 24 for cushioning is laid on the bottom plate 25 for imparting a shape, and a conductivity for imparting conductivity between the filling sponge 24 and the conductive fabric 22 having a conductive function is provided. Sponges 26-1 and 26-2 are laid in a relatively small area and interposed.

That is, as shown in FIG. 2, the conductive sponges 26-1 and 26-2 are partially bonded and laid at the end positions corresponding to the back cushion portion 40 and the seat cushion portion 20 as main components of the present invention. The bottom surface portion 22 'of the conductive fabric 22 is to be electrically connected.

The conductive sponges 26-1 and 26-2 are also connected to the conductive straps 30 to form conductive paths for discharging generated static electricity from the back.

As shown in Fig. 4, the conductive fabrics intersect with each other, as shown in the zigzag shape and A portion enlarged view, as a needle-making yarn 21 on the cushion fabric 23 of high-wear-resistant synthetic fibers, natural fibers, leather, and the like. By forming a polygonal shape such as a lozenge having an area R, it is sealed so that a dissipating path is formed in the entire seating cushion portion 20.

It is preferable that the bee stitching agent 21 is composed of a entrepreneur having a certain thickness by twisting a plurality of strands by a method such as twisting yarn as compared with a conventional conductive yarn having a thin thickness. It is possible to configure by setting up.

More preferably, 75-150 denier polyester, nylon, cotton yarn, etc. are twisted by 2-3 strands, each strand is self-twisted, and then it is good to configure by twisting the conductive yarns. In this way, since the conductive yarn having a thin thickness is present between the yarns being twisted, the surface resistance is low and the protection from abrasion is achieved.

The reason why the yarn is composed by twisting yarn is that when the yarn is non-twisted, the conductive yarn is completely buried in the yarn, and the surface resistance is almost infinite.However, when the yarn is twisted, the conductive yarn is twisted together and the surface is exposed to the surface. It is intended to solve this problem because the conductive yarns which come out low but have a thin thickness are easily cut at exposed portions.

Therefore, the conductive fabric 22 used in the work chair having the antistatic function of the present invention is not constituted by weaving a large amount of the conductive yarn by adding a warp yarn or a weft yarn at the time of weaving as in the prior art,

Since the fabric is sewn as an instrument such as a sewing machine on a conventional fabric, the sewn fabric 23, which is a material of the conductive fabric to be applied, can be selected in various ways. .

This is because chair fabrics usually use thick 600-2400 denier yarns to provide wear resistance and breathability for hygiene and hygiene by providing fabric surface irregularities. The conductive yarn is very useful from the point of being buried between the thick yarns and difficult to contact the worker's body.

In addition, it is possible to provide a chair suitable for the work site because it is possible to select a wider range of designs, colors, etc. than the conventional woven conductive fabric.

The static electricity discharged along the path of the conductive fabric 22-conductive sponges 26-1 and 26-2 from the body of the worker who contacts the seat cushion unit 20 and the back cushion unit 40 is the seat cushion unit. A conductive ribbon 40 inserted into the conductive sponge 26-1 of FIG. 20 and closed is drawn out along the opening 12 of the chair plate 11 to the pivot shaft 12 of the metal material with a bolt 13 or the like. Fixed to form a series of conductive paths,

Seat cushion section 20, conductive sponges (26-1, 26-2), conductive ribbon (40), pivot shaft (12), leg arm (13), chair leg (10) of back cushion section (40) The static electricity drawn along is discharged by one or more conductor chains 50 which are finally fixed to the chair leg 10 and connected to the working conductive mat (M) on the bottom. There is a festival.

As described above, the static electricity generated in the body of the worker is absorbed by the needle immersion transfer agent 21 of the conductive fabric 22, collected by the conductive sponges 26-1, 26-2, and released to the ground.

The work chair having the antistatic function of the present invention as described above enables the preparation of the conductive fabric at a lower cost than the conventional configuration using a large amount of woven conductive fabrics, and the fabric of the bee sting material as the basic material is hygroscopic. By providing high and diverse designs, it greatly increases workability and applicability.

In addition, it is possible to arbitrarily set the thickness of the beaded needles jeonsaeng by increasing the wear resistance has the effect of extending the life and the like.

Claims (4)

Rotating shaft portion 12, leg arm 13, which has a seat cushion portion 20 fixed on a chair plate 11 that is rotatable on a chair leg 10 made of metal, and on which the chair plate 11 is fixed. A working chair comprising a chair leg (10); The seat cushion portion 20 fixed on the chair plate 11 is provided with a filling sponge 24 on the bottom plate 25 for shaping, and a high wear resistance composite on the filling sponge 24. The conductive fabric 22 is sewn onto the cushion fabric 23 selected from fibers, natural fibers, and leather as a stitch needle transfer yarn 21 to form a conductive path, and the coated conductive fabric 22 is It is configured to be fixed to contact with the conductive sponge (26-1) attached to the chair plate 11 and electrically connected, The conductive sponges 26-1 and 26-2 are connected to the rotation shaft 12 of the chair by the conductive ribbon 40 so that the seat cushion portion 20-the conductive sponges 26-1 and 26-2. -Conductive ribbon (40)-rotating shaft portion (12)-leg arm (13)-chair chair for work having an antistatic function, characterized in that to form a conductive path connected to the leg leg (10) . The method of claim 1, The needle immersion transcription 21 which is immersed in the conductive fabric 22 and constitutes a conductor, 75-150 denier polyester, nylon, and cotton yarn is composed of two or three strands of twisted yarn, each strand itself is twisted, and then additionally twisted conductive yarns are added to the entire yarn Chair for work with antistatic function to assume. The method according to claim 1 or 2, The needle stitching agent 21 encapsulated in the conductive fabric 22 is encapsulated in a polygonal or zigzag shape having an area R intersecting with each other and electrically connected to the seat cushion portion 20. Work chair having an antistatic function, characterized in that formed over the entire surface of the. The method of claim 1, Further providing a back cushion portion 40 having the same conductive configuration as the seat cushion portion 20 to the chair, The conductive sponge 26-1 of the seat cushion portion 20 and the conductive sponge 26-2 of the back cushion portion 40 are connected to each other by a conductive strap 30 to connect the conductive path to the back cushion portion. Work chair having an antistatic function, characterized by further extending to (40) .

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