JP4792265B2 - Floor with enhanced grounding function for OA equipment - Google Patents

Description

  The present invention relates to a floor having an improved grounding function for OA equipment, which is effective for removing leakage current generated on the surface of OA equipment and the like, harmful static electricity that causes malfunction, and the like.

As is well known, the modern society is an information society, and it is full of various information devices not only in the workplace but also at home, and it cannot be realized without the benefits of these information devices.
For this reason, it is desirable that the building is constructed so as to have a use environment suitable for handling information equipment.
For example, in a room where OA equipment is installed, leakage current, radio waves, and static electricity generated in the installed OA equipment may cause malfunctions, so it is necessary to ground the OA equipment to the building steel frame. . Therefore, for example, when grounding OA equipment through the floor indoors,
(1) For each OA device, the grounding wire was wired to the distribution board.
Also, when using a common ground in a computer room,
(2) A conductive material is laid in a lattice shape in the OA floor, and the lattice-shaped conductive material is grounded.

Other grounding structures for buildings (3)
(Japanese Unexamined Patent Application Publication No. 2005-78936) is disclosed. Here, an inner ground electrode buried along the inner side of the building foundation is connected by a conductor, and the conductor and a ground terminal provided in the building are connected by another conductor.

In addition, for the OA equipment installed indoors, while disclosing various harmful radio waves from the surroundings, a configuration is disclosed that prevents electromagnetic waves from leaking to the surroundings.
(4)
(Japanese Patent Laid-Open No. 2002-129673). Here, in an OA floor in which a plurality of floor panels are laid and supported by support legs standing on a floor slab, the floor panels are made conductive and joined together with a conductor, and the ends of the floor panels are connected to the wall side. It is said that the electromagnetic wave shielding floor can be constructed at low cost by simple means by joining the electromagnetic wave shielding body with a conductor, and thereby the electromagnetic wave shielding space can be easily constructed by new or reforming.

However, among the above-described means, with the means (1), when each OA device is grounded, a ground wire must be wired to the distribution board for each device.
In the means (2), in order to make the room an electromagnetic wave shielding space, not only the floor but also the wall surface is laid on the OA floor in the form of a grid, and the solder is welded to the OA floor leg. The laying cost increases.
In addition, the grounding structure of the building in (3) is intended for the grounding structure of the building itself, and ground electrodes are provided on the outside and inside of the building foundation and electrically connected to the ground terminal provided in the building, In addition, a part of the building foundation is made of conductive concrete and used as a grounding electrode to obtain a low grounding resistance value, thereby rationalizing the grounding method for OA equipment installed indoors. It's not that.
Further, the means (4) is not disclosed as a grounding means, and is a structure for blocking various harmful radio waves from the surroundings while preventing electromagnetic waves from leaking to the surroundings. Although a conductive panel is used, an electrical connection configuration with the casing, that is, a ground configuration is not disclosed.
The present invention has been proposed from such a background, and is effective in removing leakage current generated on the surface of OA equipment or the like, harmful static electricity that may cause malfunction, and the like. The purpose is to provide an enhanced floor.

In order to solve the above-described problem, in the present invention, in claim 1, a plurality of legs made of a conductive material are erected at predetermined intervals on the indoor floor surface, and the legs located on the end side And a steel frame in the housing are electrically connected to each other, and a number of floor units made of conductive panels having dimensions corresponding to the distance between the legs are brought into contact with each other,
Each of the contact corners of the four floor units is configured to be supported by the legs,
Each of the contact corners of the four floor units that contact each other has a fan-shaped notch portion that constitutes an insertion portion through which the conductive bolt is inserted in the contacted state, and a storage portion that stores the head of the conductive bolt And forming a fixing hole for screwing a conductive bolt on the upper portion of the leg portion,
The thin wall portion of the contact corner of each floor unit is accommodated in the accommodation portion by screwing conductive bolts through the insertion portions formed in the contact corner portions by contacting a large number of floor units. The conductive bolt is sandwiched between the head portion of the conductive bolt and the upper portion of the leg portion and fixed together, and at the same time, it is electrically conductive .
Further, a ground terminal plate is projected in the cross direction of the outer peripheral portion at the intermediate position in the height direction of the leg portion, and a conductive material is sequentially connected by a terminal bolt between the ground terminal plates of the adjacent leg portions to form a lattice shape. to propose a floor with enhanced ground function of OA equipment and configuration.

  According to the present invention, it is possible to provide a floor having an improved grounding function for OA equipment, which is effective in removing leakage current generated on the surface of OA equipment and the like, harmful static electricity that causes malfunction, and the like. it can.

  According to claim 1, when the floor is constructed on the floor surface in the room where the OA equipment is installed, the floor having a size matched to the interval between the leg portions on one leg portion standing on the floor surface. The unit can be provided with a grounding function on the floor by fixing the conductive connecting means on the legs through the corners with the corners in contact with each other.

  According to claim 2, the grounding of the OA device is completed by connecting the grounding wire of the OA device to the grounding terminal plate at the nearest leg.

  According to the third aspect, the grounding of the OA equipment is completed by connecting the grounding wire of the OA equipment to the grounding terminal on the back of the nearest floor unit.

  According to claim 4, by connecting the ground terminal boards in the cross direction of the outer peripheral portion of the leg portion with the conductive material, the conductive material is laid in a lattice shape in the OA floor as before. Thus, the grounding cost can be suppressed.

Hereinafter, one embodiment of the floor with enhanced grounding function of OA equipment according to the present invention will be described with reference to the accompanying drawings.
FIG. 1 and FIG. 2 schematically show an example of a floor 1 having an improved grounding function of OA equipment P (personal computer, computer, etc.) according to the present invention.
The floor 1 has a number of leg portions 5 standing at predetermined intervals on a floor surface 4 of a building housing 3 that partitions the room 2, and a dimension corresponding to the distance between the leg portions 5 on the leg portions 5. The plurality of floor units 6 are supported and configured in a state of being electrically connected to each other integrally by conductive connection means (described later).
And in the said leg part 5, it is set as the structure which electrically connects the leg part 5 located in an end side, and the steel frames inside the housing 3 with the insulated cable Cb.
Although not shown, a well-known underfloor power supply system is built in advance under the floor 1 so that power is supplied to the OA equipment P installed at an arbitrary position on the floor 1.

  The leg portion 5 is a cylindrical member made of a conductive material (made of steel), and is provided with flange portions 5f and 5f on the upper and lower sides. Among these upper and lower flange portions 5f, 5f, the upper flange portion 5f is formed with a fixing hole 5h for screwing conductive connecting means (to be described later) through the floor unit 6 in order to join the floor unit 6 integrally. (See FIG. 3).

The floor unit 6 is a square or square panel having a dimension adjusted to the interval between the adjacent leg portions 5, and uses a well-known conductive member. That is, the floor unit 6 can be constituted by pressing aluminum die casting or steel plate, for example. The floor unit 6 may be configured by using a particle board or the like as a core material and covering it with a thin metal plate.
Further, when the conductive bolt 7 as the conductive connecting means is screwed to the upper flange portion 5f of the leg portion 5 at the corner portion 6E of the floor unit 6, the head portion 7h is not leveled with the floor unit 6 surface. In order to bring about this, a thin portion 6t constituting an accommodating portion for accommodating the head portion 7h below the surface of the floor unit 6 is formed, and the shaft portion 7a of the conductive bolt 7 is inserted into the corner portion . The fan-shaped notch part 6b which comprises the insertion part for this is formed.

When the floor units 6 configured as described above are joined together, the contact corners 6E are fixed to the legs 5 via the conductive bolts 7, respectively, so that one surface is electrically conductive. Yes.
In addition, when the floor units 6 are joined together, a tile carpet C known as a cover material can be laid on the surface of the floor unit 6.

The floor where the grounding function of the OA equipment according to the present invention is enhanced is configured as described above. Next, the construction procedure of the floor 1 will be described.
When constructing the floor 1 on the floor surface 4 of the room 2 where the OA equipment P is installed, one side is between the leg portions 5 on the upper flange portion 5f of one leg portion 5 erected on the floor surface 4. With the four floor units 6 matched to the separation distance and the corners 6E in contact with each other, the corners 6E are aligned, and the conductive bolts 7 are connected to the corners 6E via the aligned corners 6E. The leg portion 5 is fixed by being screwed into the fixing hole 5h in the upper flange portion 5f.

When four corners 6E of the floor units 6 are brought into contact with the corners 6E, there is room for the conductive bolts 7 to be inserted by the thin portions 6t and the fan-shaped notches 6 at the corners 6E of the respective floor units 6. The insertion portion is provided, and the conductive bolt 7 can be inserted and screwed into the fixing hole 5h in the upper flange portion 5f of the leg portion 5. The head portion 7h of the conductive bolt 7 is a thin portion. By accommodating in the space comprised by 6t, ie, an accommodating part, the four said floor units 6 can be fixed with the electroconductive volt | bolt 7 in the state without a level | step difference from the floor unit 6 surface.

In this way, by sequentially fixing the contacted corner portions 6E to the upper flange portions 5f of the corresponding leg portions 5 with the conductive bolts 7, the floor unit 6 is integrally joined to form the leg portions. 5 can complete the mounting.
In addition, when constructing the floor 1 in this way, the leg 5 located on the end side and the steel frames in the housing 3 are electrically connected by the insulated cable Cb, so the floor 1 is constructed as described above. As a result, the entire floor 1 is electrically connected to the housing 3.
Therefore, the entire floor 1 can function as a grounding body, and even if the OA equipment P is installed at any location, it can be grounded at any location on the floor 1 and has a high degree of freedom in installation as an OA room. It can bring the maximum degree of freedom to the design.

A floor having an improved grounding function for OA equipment according to the present invention can also be configured as follows.
In this case, a pair of ground terminal plates 5t, 5t for connecting the ground wire El from the OA device P are provided in the middle of the outer periphery of the leg portion 5 (see FIG. 1). The grounding wire El is connected to the grounding terminal plates 5t and 5t by a connecting means such as a terminal bolt (not shown) through an appropriate opening (not shown) provided near the leg 5, for example. be able to.

  By such means, the OA device P can be installed at an arbitrary position, and the ground line El of the OA device P can be connected to the ground terminal plate 5t of the nearest leg 5 and the entire floor 1 can be formed. In this state, it is electrically connected to the housing 3 and the grounding can be completed.

Moreover, the floor which raised the earthing | grounding function of the OA apparatus concerning this invention can also be comprised as follows.
As a means for grounding the OA equipment P, a ground terminal 6t can be provided on the back surface of the floor unit 6 (see FIG. 4).

  In this way, when grounding the OA equipment P installed indoors, the grounding work can be completed by connecting the grounding wire El to the grounding terminal 6t on the back of the nearest floor unit 6 with a terminal bolt or the like. .

  Further, ground terminal plates 5t, 5t are projected in the cross direction on the outer periphery of the leg 5, and the ground terminal plates 5t, 5t are connected with a conductive material 8 (conductive wire) and fixed with terminal bolts. It can also be set as the structure which electrically connects the ground terminal board 5t of the leg part 5 located in an end side, and the steel frames in the housing 3 wall surface via the insulated cable Cb (refer FIG. 5).

  With this configuration, since the ground terminal plates 5t and 5t project from the leg portions 5 in the cross direction of the outer periphery, the ground terminal plates 5t and 5t are connected by the conductive material 8 and terminal bolts. As a result, the entire conductor is stretched in a lattice shape (see FIG. 6), so that conventional solder welding is not required, construction becomes easy, and installation costs can be reduced.

It is sectional drawing which shows an example of the floor which improved the earthing | grounding function of the OA apparatus concerning this invention. It is a top view of the floor shown in FIG. It is a perspective view of the leg part used for the floor shown in FIG. It is sectional drawing which shows another example of the floor which improved the earthing | grounding function of the OA apparatus concerning this invention. It is sectional drawing which shows another example of the floor which improved the earthing | grounding function of the OA apparatus concerning this invention. It is a top view of the floor shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Floor 2 Room 3 Housing 4 Floor surface 5 Leg part 5f Flange part 5h Fixing hole 6 Floor unit 6E Corner part 6t Thin part 6b Fan-shaped notch part 7 Conductive bolt 7h Head part 7b Shaft part 8 Conductive material POA apparatus Cb Insulation cable C tile carpet El grounding wire

Claims (1)

On the indoor floor surface, a large number of legs made of a conductive material are erected at predetermined intervals, and the legs located on the end side and the steel frames in the housing are electrically connected, A large number of floor units composed of conductive panels having dimensions corresponding to the intervals between the legs are brought into contact with each other,
Each of the contact corners of the four floor units is configured to be supported by the legs,
Each of the contact corners of the four floor units that contact each other has a fan-shaped notch portion that constitutes an insertion portion through which the conductive bolt is inserted in the contacted state, and a storage portion that stores the head of the conductive bolt And forming a fixing hole for screwing a conductive bolt on the upper portion of the leg portion,
The thin wall portion of the contact corner of each floor unit is accommodated in the accommodation portion by screwing conductive bolts through the insertion portions formed in the contact corner portions by contacting a large number of floor units. The conductive bolt is sandwiched between the head portion of the conductive bolt and the upper portion of the leg portion and fixed together, and at the same time, it is electrically conductive .
Further, a ground terminal plate is projected in the cross direction of the outer peripheral portion at the intermediate position in the height direction of the leg portion, and a conductive material is sequentially connected by a terminal bolt between the ground terminal plates of the adjacent leg portions to form a lattice shape. Floor with enhanced grounding function for OA equipment, characterized by its configuration .

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