JP2012158918A - Floor structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide effective and proper countermeasures against static electricity for a floor formed of nonconductive material.SOLUTION: A floor structure is formed of nonconductive floor materials which are paved side-by-side. A conductive plate having a top face exposed to the floor face is disposed between the floor materials and connected to a ground lead. Deck materials 2 each formed of a long strip-shaped resin molded plate are paved side-by-side with a space therebetween to form a deck 1. A strip-shaped conductive plate 6 is attached to a side of the deck material such that the upper edge of the plate is exposed to the floor face, and the deck material is connected to a ground lead 8. A walking person on the deck can tread the conductive plate. The conductive plate is installed in the vicinity of a conductor (e.g., a metal handrail and a metal door knob installed around periphery of the deck) installed at least on the deck.

Description

  The present invention relates to a floor structure in a building, and more particularly to a floor structure suitable for application to a deck installed on the roof or inside or outside of a building.

In recent years, a deck is often provided on the roof of a building or inside and outside the building.
As is well known, this type of deck is most commonly a wooden deck (that is, a so-called wood deck) in which deck materials made of long strips of wood are laid out with a slight gap. In many cases, artificial wood made of synthetic resin imitating wood is used as a deck material.

  However, since deck materials made of artificial wood made of synthetic resin are generally composed mainly of non-conductive resins such as polypropylene, static electricity is generated by friction when people pass on decks constructed with such deck materials. It may occur violently, charging a passerby, and causing an unpleasant discharge shock at the moment of touching a metal handrail or door knob.

  In order to prevent the occurrence of such static electricity and the resulting discharge shock, various conductive resins having an antistatic effect as a material for the deck material, such as antistatic resin compositions as disclosed in Patent Document 1, By using an antistatic resin composition as shown in Patent Document 2 or by laying a conductive floor sheet as shown in Patent Document 3 on the surface of the deck material, conductivity is imparted to the deck. It is conceivable to prevent the human body from being charged and to remove electricity from the human body.

JP 2003-183529 A JP 2008-239635 A Japanese Patent Publication No. 5-42799

However, materials such as those shown in Patent Documents 1 to 3 can be suitably used when a high level of countermeasures against static electricity are required as in a semiconductor factory, but such special materials can be used as general-purpose construction materials. It is not practical to apply to certain deck materials.
In other words, since deck materials made of general artificial wood that are frequently used at present are mainly inexpensive ones that are recycled from waste plastic, they are replaced with special ones as shown in Patent Document 1 and Patent Document 2 instead. In addition, it is not realistic to apply an expensive resin composition as a material for the deck material.
In addition, laying a special sheet material as shown in Patent Document 3 on the surface of the deck material is not realistic because the original function and design of the deck are greatly impaired.

  If it is necessary to take measures against static electricity on existing decks that are constructed using deck materials made of artificial wood, at present, there is no choice but to take measures such as spraying an antistatic agent or laying a conductive mat. However, the former has only a temporary effect, and the latter only impairs the function and design of the deck as in the case of laying the conductive sheet, and neither is effective.

  The above is not only for decks constructed using artificial wood, but also for floors that are prone to static electricity due to non-conductive flooring. In fact, the establishment of effective and appropriate static electricity countermeasure methods is desired.

  In view of the above circumstances, the invention according to claim 1 is a floor structure formed by laying and arranging floor materials made of a non-conductive material, and a conductive plate is installed between the floor materials. The upper surface of the conductive plate is exposed on the floor surface, and a ground wire is connected to the conductive plate.

  Invention of Claim 2 is the floor structure of Claim 1, Comprising: The said floor material is a deck material which consists of a long strip-shaped resin molding board, Comprising: This deck material is laid out with a clearance gap. Thus, the deck as the floor is formed, the conductive plate is formed into a strip shape, the conductive plate is attached to the side surface of the deck material, and the upper edge of the conductive plate is exposed to the floor surface Thus, a passerby disposed in the gap between the deck members and passing on the deck is configured to be able to pass while stepping on the conductive plate.

  A third aspect of the present invention is the floor structure according to the second aspect, wherein the conductive plate is installed at least in the vicinity of a conductor installed on the deck.

  The invention according to claim 4 is the floor structure according to claim 3, wherein the conductor is a metal handrail or a metal doorknob installed on the peripheral edge of the deck. .

  According to the present invention, a conductive plate connected with a ground wire is installed between floor materials, and the upper surface of the conductive plate is exposed to the floor surface. Will naturally step on the conductive plate, and the human body will be grounded to the ground via the conductive plate, so that it will be difficult for the static electricity generated by friction with the flooring material to be charged to the human body. However, even if it is electrically charged, it is possible to prevent unpleasant discharge shock from occurring because the charge is surely and promptly removed when the conductive plate is stepped on.

It is a schematic block diagram which shows embodiment at the time of applying the structure of the floor of this invention to a deck. It is a principal part expanded sectional view similarly. It is a top view of the whole deck same as the above.

1 to 3 show an embodiment in which the floor structure of the present invention is applied to a deck 1.
The deck 1 of this embodiment is formed by laying a long strip plate-like deck material 2 made of synthetic resin simulating wood with a slight gap as shown in FIG. It is provided on the rooftop or inside and outside for various purposes (for example, as a space for gardens, sightseeing, rest, etc., or as a passage like a passageway).

  However, in the present embodiment, since the deck material 2 is non-conductive artificial wood mainly composed of polypropylene, a person passes on the deck 1 as described above to take no measures against static electricity. A static electricity is generated so that a passerby is charged, and the passer is made of a metal handrail 3 (see FIG. 3) provided around the deck 1 or a door 4 installed at an entrance leading to the deck 1. Since an unpleasant discharge shock occurs at the moment when the metal door knob (same as above) is touched, the following measures are taken in the deck 1 of the present embodiment to prevent it.

  That is, the deck 1 of the present embodiment is constructed by laying the deck material 2 having a width dimension of about 100 mm, for example, on the joist material 5 while securing a slight gap as in the case of a normal wood deck. As shown in FIG. 1, conductive plates 6 are attached to both sides of every other deck material 2, and when the deck plates 2 are arranged side by side, the gaps between the deck materials 2 as shown in FIG. 2. Each of the conductive plates 6 is disposed therein, and the upper surface of each conductive plate 6 is substantially flush with the surface of the deck 1 (that is, the floor surface) so as to be exposed there. .

  The conductive plate 6 in this embodiment is a strip plate made of a highly conductive metal material (for example, aluminum FB-25, 2t), and is fixed to both side surfaces of the deck material 2 with screws 7 as shown in FIG. In addition, a ground wire 8 is screwed to one of the screws 7 at the same time, the adjacent conductive plates 6 are electrically connected by the ground wire 8, and one end of the ground wire 8 is finally connected In particular, as shown in FIG. 3, all the conductive plates 6 are grounded with respect to the ground by being electrically connected to appropriate ground locations.

  As described above, the conductive plate 6 is disposed in the gap between the deck materials 2 and the upper surface thereof is exposed on the floor surface of the deck 1, so that the traffic passes on the deck 1 or stands on the deck 1. As shown in FIG. 2, the person will step on at least one of the conductive plates 6, so that the human body always touches the conductive plate 6 via the sole (the sole if bare feet). Since the earth is grounded via the ground wire 8, static electricity generated by friction with the deck material 2 is difficult to be charged to the human body, and even if it is charged, it can be promptly performed when the conductive plate 6 is stepped on. Therefore, even if the metal handrail 3 or the door knob of the door 4 is touched, an unpleasant discharge shock does not occur.

  According to the experiment, when passing on an unmeasured deck while wearing shoes with a normal electrical resistance value, the charging voltage to the human body will be about 0.02 to 0.10 kV, especially 0.05 kV or more Although a discharge shock occurs at the moment of touching the handrail or door knob, it was confirmed that when the vehicle passed through the deck 1 with the above countermeasures, the charging voltage was zero and no discharge occurred.

As shown in the example, conductive plates 6 are attached to both side surfaces of every other deck material 2 (the deck material 2 with two conductive plates 6 attached and the deck material 2 with no conductive plates 6 attached alternately. In the same manner as above, the conductive plates 6 are arranged in all the gaps between the deck materials 6 by attaching the conductive plates 6 one by one to one side surface of all the deck materials 2. can do.
In any case, it is necessary that the conductive plate 6 be able to pass on the deck 1 or be stepped on by a person standing on the deck 1, so that the planar shape of the entire deck 1 or the deck material 2 can be used. They should be installed at appropriate positions at appropriate positions according to the shape, dimensions, mutual distance, etc.

In the above embodiment, the upper surface of the conductive plate 6 is made to be level with the floor surface (to be flush with the floor surface) so as to contact the shoe sole or sole, which is usually sufficient, but is necessary. For example, the upper edge portion of the conductive plate 6 may be exposed in a state of slightly protruding (for example, about 1 to 2 mm) on the floor surface.
However, in that case, it should be considered that a passerby hits or gets caught on the conductive plate 6 and does not hinder the original use of the deck. It is preferable that the corners have a sufficiently smooth finish by, for example, curved surface processing.

Moreover, the said embodiment is uncomfortable when it touches conductors, such as the metal handrail 3 provided in the circumference | surroundings of the deck 1, and the metal doorknob of the door 4 installed in the entrance to the deck 1. The main purpose is to prevent a discharge shock. Therefore, as shown in FIG. 3, the conductive plate 6 (only in the vicinity of the handrail 3 or the door 4, that is, in the outer peripheral area where the handrail 3 or the doorknob may be touched. In FIG. 3, it is assumed that a thick line is installed, which is usually a sufficient countermeasure against static electricity.
However, if there is a conductor that may cause a discharge shock other than the handrail 3 or door knob, or if there is a concern that a discharge shock may occur other than at the peripheral edge, the floor surface around such a region Similarly, it is preferable to install the conductive plate 6. If necessary, the conductive plate 6 may of course be installed over the entire deck 1.

Furthermore, the present invention is not limited to being applied to the deck 1 using the deck material 2 made of artificial wood as in the above-described embodiment, and a countermeasure against static electricity is required because non-conductive flooring is formed side by side. It can be applied to all floors as well.
For example, the same problem may occur for an artificial stone floor constructed by laying and arranging blocks made of non-conductive artificial stone materials. In that case, the conductive plate 6 is interposed between the artificial stone blocks as the floor material. By simply placing the scrambled in a position where it can always be stepped on, the same function as in the case of the deck of the above embodiment and the same effect can be obtained.

Of course, the present invention can be applied not only to the case of newly constructing a floor made of a non-conductive material, but also to a method for repairing an existing floor that requires countermeasures against static electricity. What is necessary is just to restore | restore, after removing a floor material temporarily and attaching the electrically conductive board 6 and the ground wire 8 to the side surface.
In particular, when the existing floor is the deck 1 as in the above embodiment, the existing deck material 2 is removed from the joists 5 one by one, and the conductive plate 6 and the ground wire 8 are attached to the side surfaces with screws 7 and again. Since it only has to be attached to the joist 5, it can be easily repaired without damaging the deck 2.
In addition, it is necessary to remove the floor material when the conductive plate 6 can be inserted into the gap between the deck materials 2 by the work from the floor or under the floor without being removed, and can be fixed or locked appropriately. Therefore, it can be repaired more easily.

  In any case, since the floor structure of the present invention can be constructed very easily and at low cost, the present invention is a new floor structure formed by laying floor materials made of non-conductive materials. In addition, it is the most suitable as a renovation technique for existing floors formed with such a structure.

1 deck (floor)
2 Deck material (floor material)
3 handrail 4 door 5 joist 6 conductive plate 7 screw 8 ground wire

Claims (4)

A floor structure formed by laying and arranging floor materials made of non-conductive materials,
A floor structure characterized in that a conductive plate is installed between the floor materials, an upper surface of the conductive plate is exposed to the floor surface, and a ground wire is connected to the conductive plate. The floor structure according to claim 1,
The floor material is a deck material made of a long band-shaped resin molded plate, and the deck material is laid out with a gap therebetween to form a deck as the floor, and the conductive plate is formed into a belt plate shape. The conductive plate is attached to the side surface of the deck material and the upper edge of the conductive plate is exposed on the floor surface. The floor structure is configured so that a person can walk while stepping on the conductive plate. The floor structure according to claim 2,
A floor structure characterized in that the conductive plate is installed at a position near at least a conductor installed on the deck. The floor structure according to claim 3,
The floor structure characterized in that the conductor is a metal handrail or a metal doorknob installed at the peripheral edge of the deck.

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