JP3474955B2 - Panel for free access floor, method of manufacturing the same, and method of constructing free access floor using the same - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel for a free access floor which can accommodate wiring of OA equipment, telephones, facsimile machines, etc. by laying a large number thereof, a method for manufacturing the panel, and a free access using the panel. Regarding the construction method of the floor.

[0002]

2. Description of the Related Art In recent years, in a room where many office automation equipments, telephones, facsimile machines, etc. are installed, a so-called double floor structure in which a panel for a free access floor is laid on the floor is often adopted. . Such a double-floor structure can house wires such as power lines, telephone lines, and signal lines emitted from various devices between the panel and the floor, and is useful for improving aesthetics and safety.

A typical example of this is a double floor structure composed of support legs and a plate-shaped body. This can be obtained by arranging the support legs on the floor and laying a plate-like body on it (or preliminarily integrating the support legs and the plate-like body and laying it on the floor surface). If there is unevenness in the ground, it is necessary to adjust the height of the support legs to match it, and the construction was complicated. Further, since the load applied on the plate-shaped body is received only by the slight joint surface between the supporting leg and the plate-shaped body, the plate-shaped body may be distorted unless it has a considerable bending strength.

Further, Japanese Patent Laid-Open No. 61-60965 discloses a double-floor structure which does not use supporting legs and is easy to install. This is a structure in which a floor plate that is a substantial floor surface is installed on the upper surface of a concrete slab with an appropriate gap, and the gap serves as a joint groove for piping and wiring, and a lid is placed on the upper surface of this joint groove. Has become. However, when actually constructing the double floor structure, the width of the joint groove is determined in advance, the lid material is formed according to it, and the spacing between the floor boards is measured according to the size of the lid material. It had to be constructed.

Next, as a floor panel device that saves the trouble of measuring the width of such a wiring groove, a floor panel device using a panel having an interval determining protrusion at the lower edges of at least two adjacent sides of the panel. (Jpn. Pat. Appln. KOKAI Publication No. 4-36351) and wiring floor panels (Japanese Patent Laid-Open No. 62-107161) characterized in that a groove passage for wiring is formed on the upper surface of the board and a removable cover is attached. It is provided. However, the floor panel device and wiring floor panel provided here need to be covered with a carpet material or the like after spreading the panels to improve the aesthetics, heat retention, and safety of the floor. ,. Process of laying panels ,. A step of covering the upper surface opening of the wiring groove with a cover plate ,. Three steps were required: the step of laying the carpet material on the panel.

As a floor panel which can eliminate the complexity at the time of construction, the carpet material and the plate-like body and the thin plate for closing the wiring hole are previously integrated as a thin panel. A floor panel (JP-A-6-291887) in which the width of the wiring hole can be determined by the width has been proposed. This can be installed while forming the wiring groove by simply laying one end of the thin plate so that it fits into the spot facing part of the adjacent panel, and the workability is extremely good. However, in consideration of the case where wiring is changed after construction, the adhesion between the thin plate and the plate-like body and the carpet material is performed by a method that allows peeling and re-adhesion. There was a problem that the thin plate would come off. In addition, the panel proposed here has a problem that the plate-like body will come apart when the carpet material is reattached unless it is fixedly adhered to the floor surface during construction.

[0007]

The problem to be solved by the present invention is that the width of the wiring groove does not have to be measured one by one when the panels are spread, the construction process is extremely simple, and the carpet material can be replaced after the construction. It is to provide a panel for a free access floor that can be easily performed, a method for manufacturing the panel, and a method for constructing a free access floor using the panel.

[0008]

As means for solving the above problems in the present invention, a counterbore portion 21 is provided on the upper four sides of a square pole, and a plurality of notches 24 extending from the back surface 23 to the vicinity of the front surface 22 are provided. Plate-shaped body 2 and plate-shaped body 2
The flexible sheet 3 having substantially the same shape as the front surface 22 and a rectangular carpet material in which the length of each side is longer than the length of each side of the back surface 23 of the plate-like body 2 by the width of the wiring groove 6. It is a panel 1 for a free access floor consisting of 4 and a plate-like body 2.
The flexible sheet 3 is laminated on the surface 22 of the, and the carpet material 4 is laminated on the flexible sheet 3 excluding the overlapping portions 31 provided on two adjacent sides of the flexible sheet 3. A panel 1 for a free access floor is provided, further comprising a back surface 23 of the plate-like body 2.
Further, there is provided the panel 1 for a free access floor characterized in that a cushion material 5 is laminated, and further, the flexible sheet 3 and the carpet material 4 are laminated in a peelable and re-adhesive manner. The free access floor panel 1 is provided,
Furthermore, the free access floor is characterized in that the entire back surface of the carpet material 4 is coated with an adhesive material or adhesive capable of peeling and re-adhering, and is laminated with the flexible sheet 3 by this. A panel 1 for a free access floor is provided, and further, a panel 1 for a free access floor is provided, wherein the plate-shaped body 2 is made of a lightweight cement containing reinforcing fibers.
After the plate-like body 2 and the flexible sheet 3 are attached to each other, the notch 24 is made from the back surface 23 to the vicinity of the front surface 22 of the plate-like body, and the carpet is provided on the flexible sheet 3 except the overlapping portion 31. There is provided a method for manufacturing the panel 1 for free access floors, which is characterized by laminating materials 4 and furthermore, a panel for free access floors in which the end portions of the carpet material 4 of the panel 1 for free access floors are adjacent to each other. The free access floor panel 1 is spread so as to be in contact with the end of the carpet material 4 of No. 1, and then the overhanging portion 41 of the carpet material 4 is turned over to form a thin plate between the spot facing portions 21 of the adjacent free access floor panels 1. 7 and finally the carpet material 4 is overlapped with the thin plate 7 and the overlapping portion 31 of the panel 1 for the free access floor.
In addition, there is provided a method for constructing a free access floor, which is characterized in that they are attached by a method capable of peeling and re-adhesion.

That is, a carpet material in which the length of each side is longer than the length of each side of the back surface of the plate-like body by the width of the wiring groove is previously integrated as a part of the panel for the free access floor. The inventors have found that the above problems can be solved by using a carpet material and laying it so that the carpet material is in contact with the carpet material of an adjacent panel, and the present invention has been completed.

A description will be given below with reference to the drawings. In the present invention, the surface 22 of the plate-shaped body 2 means the upper surface of the plate-shaped body 2 excluding the surface of the spot facing portion 21, and the overlapping portion 31.
Is a portion provided on two adjacent sides of the flexible sheet 3, and means a portion that overlaps with the carpet material 4 of the adjacent panel 1 after construction, and the overhanging portion 41 refers to the panel 1 viewed from the back surface. In this case, it refers to a part of the carpet material 4 protruding from the plate-shaped body 2.

The panel 1 for a free access floor according to the present invention is composed of at least three members such as a plate-like body 2, a flexible sheet 3 and a carpet material 4. As shown in FIG. 2, the plate-like body 2 has a square pillar whose upper four sides are cut off to form a counterbore 2
1 is provided. For this square pole,
Although not particularly limited, a rectangular parallelepiped is the most common.

Further, the plate-like body 2 has a notch 24 extending from the back surface 23 to the vicinity of the front surface 22. This notch 24
If the flexible sheet 3 has a relatively high strength, the depth may reach the surface of the plate-like body 2 without damaging the flexible sheet 3, but normally the surface 22 0.5-5 mm
It is preferable to provide some uncut portion. If the uncut portion is less than 0.5 mm, the plate-like body 2 is likely to come apart when the carpet material 4 is replaced, and if it exceeds 5 mm, the free access floor panel 1 is given sufficient flexibility. I can't. Further, the width of the cut 24 is preferably about 1 to 10 mm, and particularly preferably about 3 to 5 mm. It is difficult to provide a cut 24 having a width of less than 1 mm with an ordinary machine, and when the cut 24 having a width wider than 10 mm is provided, when the load is applied to the upper portion of the cut 24, the plate-like body 2 may be broken. Because there is. Further, if the intervals at which the cuts 24 are provided are too small, the cutting process becomes complicated, and if the intervals are too wide, sufficient flexibility cannot be obtained. Therefore, considering these things, 20 ~
An interval of about 200 mm is preferable.

Further, in order to cope with unevenness at all angles,
The notches 24 are preferably provided not only in one direction but also in at least two directions. In addition, this notch 24
However, in order to prevent the plate-like body 2 from being separated, the flexible sheet 3 and the plate-like body 2 are put in after being laminated.

As the material of the plate-like body 2, cement, cement containing reinforcing fibers, foamed cement, lightweight concrete in which sawdust bubbles or pearlite is mixed in cement,
Although hard synthetic resin, wood, etc. can be exemplified, particularly, reinforcing fiber-containing lightweight cement is preferable because it is lightweight and has high strength.

The flexible sheet 3 is attached to the surface 22 of the plate-like body 2 in order to prevent the plate-like body 2 having the cutouts 24 from coming apart when the carpet is peeled off. Therefore, it is necessary that the surface 22 of the plate-like body 2 has substantially the same shape. In addition, the overhanging portion 41 of the adjacent carpet material 4
Since one end of each of the flexible sheets 3 is attached, the flexible sheet 3 overlaps with the adjacent carpet material 4 on two adjacent sides thereof.
have. The flexible sheet 3 can be used without limitation as long as it is a flexible sheet, but examples thereof include plastic sheets of vinyl chloride, polyester, polyethylene, polypropylene, etc., rubber sheets, cloth, and wood-based thin plates. can do.

The free-access floor panel 1 according to the present invention has the carpet material 4 integrated in advance for the purpose of improving the appearance and heat retention after the construction and saving the trouble of measuring the width of the wiring groove during the construction. The carpet material 4 is shown in FIG.
As shown in (3), there is an overhanging portion 41 that reaches the carpet material 4 of the adjacent panel 1. The width of the wiring groove 6 can be determined by the width of the protruding portion 41, and the width of the protruding portion 41 minus the width of the overlapping portion 31 with the adjacent panel 1 is the wiring groove 6
Becomes the width of. Examples of the material of the carpet material 4 include flexible plastic floor materials, rubber floor materials, fiber floor materials, and wood floor materials such as cork.

Further, the cushion material 5 is provided on the back surface of the plate-like body 2.
It is preferable to provide since it is possible to flexibly deal with a sharp protrusion on the floor surface. It should be noted that the cushion material 5 may be attached to the plate-like body 2 before the cut-out 24 is made, and the cut-in process may be performed together with the plate-like body 2. Cushion material 5
As the material, plastic foam, fiber mat, rubber, cork and the like are preferably used.

[0018]

EXAMPLES Next, a method of manufacturing a panel 1 for a free access floor according to the present invention and a construction method using the same will be described.
The description will be given based on an example, but the manufacturing method of the present invention is not limited to this.

First, the counterbore portion 21 is provided on the entire circumference of the surface of the plate-like object having the flexible sheet 3 attached to the surface thereof on the flexible sheet 3 side. At this time, the cushion material 5 can be attached to the back surface if necessary.

Next, a notch 24 is made in this panel. The cuts 24 are made from the back surface 23 of the plate-shaped body 2 to about 0.5-5 mm in front of the front surface 22 in order to prevent the plate-shaped body 2 from being separated and to impart sufficient flexibility to the panel 1. Is preferable, and the flexible sheet 3 is not scratched.

Next, the carpet material 4 is attached onto the flexible sheet 3. At this time, the carpet material 4 is attached to the flexible sheet 3 leaving the overlapping portion 31. Considering the possibility of changing the wiring or replacing the carpet material 4 after construction, at this time, the flexible sheet 3 and the carpet material 4 are attached to each other by a method with good releasability and re-adhesion. Is desirable. Examples of such a bonding method include a method of adhering with an adhesive material or a pressure-sensitive adhesive, a method of using a double-sided adhesive tape, and a method of using a surface fastener, but peeling and re-adhesion on the entire surface of the carpet material 4 in advance. It is preferable to apply a pressure-sensitive adhesive or a pressure-sensitive adhesive that can be applied, since the step of applying the adhesive is omitted when the thin plate or the flexible sheet 3 of the adjacent panel 1 is attached later. This completes the panel 1 for the free access floor of the present invention.

Next, a method for constructing a free access floor using the panel 1 for the free access floor will be briefly described. The construction process is roughly divided into two steps. First, in the first step, the panel 1 for a free access floor of the present invention is spread over the floor surface. At this time, the overhanging portion 41 of the carpet material 4 covers the overlapping portion 31 of the adjacent free access floor 1 so that the carpet materials 4 come into contact with each other without a gap. At this time, the free access floor panel 1 does not need to be specifically fixed to the floor surface, but can be fixed with an adhesive, a double-sided adhesive tape, a pressure-sensitive adhesive, a surface fastener, or the like, if necessary.

In the second step, the overhanging portion 41 of the carpet material is used.
And the thin plate 7 between the counterbore 21 of the adjacent panel 1.
The wiring groove 6 is fitted, and the carpet material 4 is covered again, and the carpet material 4, the thin plate 7, and the carpet material 4 are covered.
And the flexible sheet 3 of the adjacent panel are laminated. At this time, if an adhesive capable of peeling and re-adhering is applied to the entire back surface of the carpet material 4 in advance, it is not necessary to apply the adhesive or the like again here, but between the carpet material 4 and the thin plate 7. As for the adhesion, the same method as that for adhesion between the carpet material 4 and the flexible sheet 3 is used, which allows peeling and re-adhesion. The shape of the thin plate 7 used at this time is not particularly limited as long as the wiring groove 6 can be covered, but in order to reduce the area of the carpet material 4 to be peeled off when the wiring is changed after the panel construction, As shown in FIG. 5, it is preferable to divide into one L-shaped thin plate 71 and two square thin plates 72. There is also a trade-off with the load bearing capacity of the joint surface between the plate-shaped body 2 and the L-shaped thin plate 71, but it is preferable that the lengths a and b of the convex portions of the L-shaped thin plate 71 are shorter because the carpet peeling area is narrower. For example, when changing the vertical wiring,
It is necessary to remove the L-shaped thin plate 71 and the rectangular thin plate 72 arranged in the vertical direction. However, if the convex portion length a or b of the L-shaped thin plate 71 is long at this time, the flexible sheet 4 is peeled off to remove them. The area of is increased. Thin plate 7
It is preferable to use a material having load resistance such as a steel plate, an aluminum plate, and a hard synthetic resin plate.

[0024]

[Effect] Free access floor panel 1 of the present invention
Is a large number of cuts 2 from the back surface 23 to the vicinity of the front surface 22.
Since it has No. 4, it can fit on the floor even if the floor where the panel is installed is slightly uneven, and it is not necessary to adjust the height using the support legs or the like. Further, since the sheet is directly laid on the floor, the area of contact with the floor is large, and even if the plate-shaped body 2 is a base material that does not have particularly large bending strength, the panel is not distorted or bent.

Since the carpet material 4 is integrated before the construction and the width of the wiring groove 6 can be determined by this width, it is not necessary to measure the width of the wiring groove 6 when the panel 1 is spread. . Furthermore, since the construction is completed in two steps, that is, the step of spreading the panels and the step of closing the wiring groove with a thin plate, the construction is also simplified. Furthermore, since the overhanging portion 41 of the carpet material 4 reaches the overlapping portion of the adjacent panel 1, the end portion of the overhanging portion 41 does not hang down, which makes it difficult to determine the width of the wiring groove 6.

Furthermore, since the carpet material 4 is attached to the flexible sheet 3 by a method capable of peeling and re-adhesion, when the carpet material 4 becomes dirty, it can be easily replaced.

In addition, a flexible free-access floor panel according to the present invention is manufactured by simply cutting the plate-like body 2 after adhering the flexible sheet 3 and adhering the carpet material 4 thereto. The manufacturing process of the panel itself is extremely simple.

[Brief description of drawings]

FIG. 1 is a perspective view of a panel for a free access floor according to the present invention.

FIG. 2 is a perspective view (A) and a sectional view (B) of a plate-like body used for a panel for a free access floor according to the present invention.

FIG. 3 is a perspective view (A) and a cross-sectional view (B) when two free access floor panels according to the present invention are spread.
Is.

FIG. 4 is a top view (A) and a bottom view (B) of a panel for a free access floor according to the present invention.

FIG. 5 is an example of a thin plate.

[Explanation of symbols]

1 Free access floor panel 2 plates 21 spot facing 22 surface 23 Back side 24 notches 3 Flexible sheet 31 Overlap 4 Carpet material 41 Overhang 5 cushion material 6 wiring groove 7 thin plate 71 L-shaped thin plate 72 square thin plate

─────────────────────────────────────────────────── ─── Continuation of front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04F 15/024

Claims (7)

(57) [Claims] 1. A counterbore 21 is provided on the upper four sides of a square pole, and a plurality of notches 2 extending from a back surface 23 to a vicinity of the front surface 22 are provided.
4 is provided, a flexible sheet 3 having substantially the same shape as the front surface 22 of the plate-shaped body 2, and the length of each side is the same as that of each side of the back surface 23 of the plate-shaped body 2. A free-access floor panel 1 made of a carpet material 4 in the shape of a quadrangle that is longer than the length by the width of a wiring groove 6. A flexible sheet 3 is laminated on a surface 22 of a plate-shaped body 2, and the flexible sheet 3 is further flexible. A panel 1 for a free access floor, wherein a carpet material 4 is laminated on a flexible sheet 3 excluding an overlapping portion 31 provided on two adjacent sides of the flexible sheet 3. 2. The panel 1 for a free access floor according to claim 1, wherein a cushion material 5 is laminated on a back surface 23 of the plate-shaped body 2. 3. The panel 1 for a free access floor according to claim 1, wherein the flexible sheet 3 and the carpet material 4 are laminated in a peelable and re-adhesive manner. 4. A peelable and re-adhesive adhesive material or adhesive is applied to the entire back surface of the carpet material 4, and is laminated with the flexible sheet 3 by this. Free access floor panel 1 described in 1. 5. The panel for a free access floor according to claim 1, wherein the plate-like body 2 is made of lightweight cement containing reinforcing fibers. 6. After the plate-shaped body 2 and the flexible sheet 3 are bonded together, a cut 24 is made from the back surface 23 to the vicinity of the front surface 22 of the plate-shaped body, and the overlapping portion 31 of the flexible sheet 3 is further formed.
The method for producing a panel 1 for a free access floor according to any one of claims 1 to 4, wherein the carpet material 4 is laminated on a portion other than the area. 7. The end portion of the carpet material 4 of the panel 1 for a free access floor according to any one of claims 1 to 4,
The free access floor panel 1 is laid so as to come into contact with the end of the carpet material 4 of the adjacent free access floor panel 1, and then the overhanging portion 41 of the carpet material 4 is spread.
The thin plate 7 is fitted between the counterbore parts 21 of the free access floor panels 1 adjacent to each other, and finally the carpet material 4 is peeled off from the overlapping part 31 of the free access floor panel 1 adjacent to the thin plates 7. A construction method for a free access floor, which is characterized in that it is pasted by a method that allows re-adhesion.