JPH11129697A - Static electricity preventive utensil, and shelves equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To always discharge static electricity charged on a human body every time when a finger or one part of a wrist or the like touch the region of a discharging member by a method wherein on a surface plate, one or more holes are formed, and on the rear surface side, the discharging member is provided under such a state wherein the fingers or the like can touch it through these holes. SOLUTION: A discharging member is constituted of a conductive fiber 24 and a conductive brush 25. For the conductive brush 25, bristles 25B are arranged in such a manner that they may protrude in a recessed part 18B, and in addition, may be exposed from the outer edge of a surface plate 18. When this static electricity preventive utensil 17 is built up by such a constitution, the conductive fiber 24 is placed under a state being pushed up in holes 18A of the surface plate 18 by a protruding part 21A of a fixing plate 21. That is, the conductive fiber 24 is exposed in the hole 18A in a manner to be fluffy, and when a finger tip or one part of a wrist or the like are placed on the hole 18A, they come into contact with the conductive fiber 24. Therefore, from the bristle tip of the conductive brush 25, static electricity can be discharged into air through the conductive fiber 24.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an antistatic device capable of discharging static electricity charged on a human body and a shelf provided with the same.

[0002]

2. Description of the Related Art In general, the human body is easily charged due to friction between clothes and a carpet or the like, or a VDT (Visual Display Terminal) operation. Will be. Such an electric discharge feeling unpleasant of static electricity is generated in a work space such as an office in winter, for example, when a finger touches a metal part of a copying machine, a touch on a door knob, or a touch on a display screen. Many occur.

Therefore, conventionally, one end of an earth cord is connected to a desk mat which is entirely conductive, and the other end of the earth cord is connected to an earth portion of an outlet, or to an anti-static chair mat. Is adopted.

[0004]

However, when such an earth cord is used, not only the existence of the earth cord itself becomes a hindrance, but also when a person moves, the hand or foot may be disturbed. , Which invites the inconvenience of falling off from the connection part. In addition, since a special desk mat that is entirely conductive is used, the structure becomes complicated as a countermeasure against static electricity, and it is difficult to reduce the cost burden.

Accordingly, the present applicant has proposed a desk mat capable of remedying such inconvenience (Japanese Patent Application No. 8-240329). This makes it possible to discharge anytime with a simple structure without using an earth cord.

[0006] However, since this desk mat is particularly designed to be used by laying it on the top plate, there is a certain limit in terms of versatility.

[0007]

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an antistatic device capable of arbitrarily changing a mounting portion while employing the same principle as that already proposed.

Another object of the present invention is to pay attention to a natural operation of performing a normal operation in an office or the like, and to provide an antistatic device capable of discharging static electricity charged on a human body at any time during the operation. To provide shelves with storage.

[0009]

In order to achieve the above object, an antistatic device according to the present invention comprises a front plate having at least one or more holes formed therein, and a front plate provided on the back side of the front plate. And a discharge member provided so that a finger or the like can be contacted through the hole. According to such a configuration, by locating the fingertip in the hole of the surface plate, the fingertip touches the discharge member and required discharge can be performed. This antistatic device can be used by mounting it on predetermined shelves. As the shelves, for example, a slide shelf for a keyboard in a computer desk can be exemplified.By arranging an antistatic device in a front side area of the upper surface of the slide shelf, it is possible to discharge at any time during input work. Become.

[0010]

DETAILED DESCRIPTION OF THE INVENTION A discharge member according to the present invention comprises a conductive fiber disposed on the back side of the front plate and partially exposed in the hole; And a conductive brush disposed at a position exposed from the outer edge portion. With such a configuration, the discharge member can be configured with an extremely simple structure, and the appearance and appearance can be maintained well.

The antistatic device further includes a fixing plate that sandwiches the conductive fiber between the fixing plate and a surface plate. On the upper surface side of the fixing plate, a position corresponding to the hole of the surface plate is provided. It is preferable to adopt a configuration in which a raised portion of the conductive fiber is formed.
At this time, an adhesive sheet may be provided on the back side of the fixing plate. With such a configuration, the height position of the conductive fiber exposed in the hole can be partially pushed up, and the contact with a finger or the like can be facilitated. Also, when the adhesive sheet is provided, the mounting position when the fixing position of the antistatic device is arbitrarily changed can be set stably, and, of course, mounting on a vertical surface is also possible.

It should be noted that the term "shelf" used in this specification is used as a broad concept including a desk top plate, a work table top plate, and the like in addition to the above-mentioned keyboard slide shelf.

[0013]

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

FIG. 1 is an external perspective view of a computer desk to which the antistatic device according to the present embodiment is applied. In this figure, the computer desk 10 includes a pair of left and right side plates 11, a main top plate 12 disposed between the upper portions of the side plates 11, an upper top plate 13 supported above a rear portion of the main top plate 12, and A keyboard slide shelf 14 is provided on the back side of the main top plate 12 and is provided movably in the front-rear direction via a known guide mechanism.

As shown in FIGS. 2 and 3, the slide shelf 14 is provided in a shape having a wrist rest portion 15 having a slightly gently raised upper surface on the front side.
A recess 16 is formed substantially at the center of the wrist rest portion 15, and an antistatic device 17 is embedded in the recess 16.

As shown in FIGS. 4 to 6, the antistatic device 17 includes a long surface plate 18, a discharge member 20 disposed on the back side of the surface plate 18, and
Fixed plate 2 disposed on the back side of this discharge member 20
1 and an adhesive sheet 22 made of a double-sided tape or the like provided on the back surface of the fixing plate 21. Here, the surface plate 18 has many holes 18A,
A concave portion 18B is formed at one end thereof, while the fixed plate 21 is formed with an inverted arm-shaped push-up ridge 21A at a position corresponding to each of the holes 18A. Further, on the back side of the front plate 18, hanging parts 18B, 18B (see FIG. 5) are formed on both sides in the short width direction, and the fixing plate 21 does not fall between these hanging parts 18B, 18B. It is provided so that fitting is possible. In addition, the antistatic tool 17 is provided to have an entire thickness such that the surface of the front plate 18 is substantially flush with the upper surface of the wrist rest portion 15 in a state of being buried in the concave portion 16.
Further, on one end side of the fixing plate 21, a step portion capable of receiving a base piece of a conductive brush described later and having a thickness substantially equal to the thickness of the base piece is formed.

The discharge member 20 includes a conductive fiber 24 and a conductive brush 25. Here, as the conductive fiber 24, a fiber woven or non-woven fabric made of a yarn coated with a conductive metal such as copper or the like is adopted, and the weave is relatively coarse, and the fiber surface is also fuzzy. It is sewn as follows.

On the other hand, the conductive brush 25 is composed of a base piece 25A made of a thin plate of conductive metal and a bristle 25B having one end fixed to the base piece 25A. Are arranged so that the one end side regions thereof are overlapped and in contact with each other, whereby
Electrical conduction between the conductive fibers 24 and the conductive brush 25 is achieved. In addition, the conductive brush 25
5B is arranged so as to be exposed in the concave portion 18B and exposed from the outer edge portion of the surface plate 18. In addition, since the discharge member 20 is covered with the surface plate 18, dirt such as hand marks is not noticeable.

In the above configuration, when the antistatic device 17 is assembled, as shown in FIGS. 5 and 6, the conductive fibers 24 are pushed up by the raised portions 21 of the fixing plate 21.
A keeps the surface height in the hole 18A of the surface plate 18 pushed upward. In addition, since the conductive fibers 24 stand out in the hole 18A, this hole 1
When a part such as a fingertip or a wrist rides on 8A, it can contact the conductive fiber 24. Therefore, the conductive fibers 24
Static electricity can be discharged into the air from the bristle tips of the conductive brush 25 through the brush.

In the above embodiment, the surface plate 18
Although the case where many holes 18A are formed has been described, the present invention suffices if the holes 18A are formed in at least one place. However, if the holes 18A are formed so as to be distributed over substantially the entire area of the surface plate 18 as in the configuration of the embodiment, it is possible to ensure a high contact between the finger and the conductive fiber 24 and sufficiently exhibit the discharge effect. Can be.

Further, the antistatic device 17 is not limited to being applied to the slide shelf 14, but can be incorporated in other general office desks and the like. Further, in the above-described embodiment, the fixed plate 21 is provided.
1 need not always be provided. In this case, the conductive fiber 24 and the conductive brush 25 may be directly bonded to the recess 16 of the slide shelf 14 via the adhesive sheet 22. In short, the present invention can make various design changes as long as it can discharge through an area that can be contacted by a person's extremely natural movement.

Further, since the present invention is an antistatic device capable of being discharged as a single unit, the applicable object is very wide. For example, it is formed as an antistatic device which is smaller than the configuration of the embodiment. However, it is also possible to fix this to the space bar of the keyboard. Further, the space bar itself may be a structure similar to the structure of the present invention. In such a configuration, at least the input operator will contact the discharge member in seconds.

[0023]

As described above, according to the present invention,
Since the discharge member is arranged on the back side of the front plate, the charged static electricity can be discharged whenever the finger or wrist or the like touches the area of the discharge member. Therefore, it is possible to eliminate the discomfort caused by the unexpected discharge of static electricity, which has often occurred in winter.

Further, since the discharge member is partially exposed, the appearance of the discharge member is not impaired.

Further, since the raised portion of the conductive fiber is formed on the upper surface side of the fixing plate, the height position of the conductive fiber exposed in the hole can be partially raised to facilitate contact with a finger or the like. Can be promoted. In addition, when the adhesive sheet is provided on the back surface side of the fixing plate, the fixing position of the antistatic device can be attached to a desired position, and the attached state can be secured stably.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an embodiment in which an antistatic device is applied to a computer desk.

FIG. 2 is a plan view of a slide shelf of the desk.

FIG. 3 is an enlarged sectional view taken along line AA of FIG. 2;

FIG. 4 is an exploded perspective view of the antistatic device.

FIG. 5 is a cross-sectional view of the antistatic device.

FIG. 6 is a vertical cross-sectional view of a conductive brush side of the antistatic device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 14 Slide shelf 16 Concave part 17 Antistatic tool 18 Surface plate 18A hole 20 Discharge member 21 Fixing plate 21A Push-up ridge 22 Adhesive sheet 24 Conductive fiber 25 Conductive brush

Claims (5)

[Claims] 1. A surface plate having at least one or more holes formed therein, and a discharge member disposed on the back side of the surface plate and provided with a finger or the like through the holes so as to make contact therewith. Characteristic antistatic tool. 2. The discharge member according to claim 1, wherein the discharge member is disposed on a back surface of the front plate and partially exposed in the hole, and is in contact with the conductive fiber and exposed from an outer edge of the front plate. And a conductive brush disposed at a position where the conductive brush is located. 3. A fixing plate for sandwiching the conductive fiber between the conductive plate and a surface plate, wherein an upper surface of the fixing plate has a position corresponding to a hole of the surface plate,
The antistatic device according to claim 1, wherein a raised portion of the conductive fiber is formed. 4. The antistatic device according to claim 3, wherein an adhesive sheet is provided on a back side of the fixing plate. 5. A concave portion is provided in a part of a shelf having a predetermined planar shape, and an antistatic device is provided in the concave portion so as to be receivable. The antistatic device has at least one or more holes formed therein. And a discharge member disposed on the back side of the front plate, wherein the discharge member is disposed on the back side of the front plate and a part of the conductive member is exposed in the hole. And a conductive brush connected to the conductive fiber and disposed at a position exposed from an outer edge portion of the surface plate.