JPH1171891A - Free access floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a free-access floor which ensures a good construction property, prevents high construction cost by shortening the period of construction work, and prevents the crosstalk accident of strong and weak electric wires. SOLUTION: Plural lines of support legs 1 are arranged in a straight line on a floor face P, and long floor plates 2 are suspended between the plural lines of support legs 1 arranged. A curved recess can be provided in the longitudinal center of each long-size floor plate 2. Further, the longitudinal center of each long-size floor plate 2 is entirely recessed to form a wiring tray part 13, and a separator 15 whose cross section is almost in the form of inverted T can be placed at the longitudinal center of the wiring tray part 13. In this case, because the above operations can be done by simply dividing and marking the floor face P only in one direction, the efficiency of construction work is good and the period of construction work is shortened, thereby avoiding high cost of construction work. Moreover, a strong electric wire and a weak electric wire can be laid separately in the parts of the wiring tray part 13 separated by the separator 5 of the long-size floor plate 2, thus avoiding the crosstalk accident of the strong electric wire and the weak electric wire.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a free access floor (double-floor type floor) compatible with office buildings and the like in which electric wiring has become complicated due to the spread of various OA equipment.

[0002]

2. Description of the Related Art Conventionally, this type of free access floor has a structure in which a square floor plate 22 is laid on support legs 21 which are four-point pedestals as shown in FIG. That is, allocation and blackout S are performed on the floor surface P, and the plurality of support legs 21 are attached to the floor surface P based on the allocated black.
The four corners of the floor plate 22 to be laid are supported by the support legs 21 installed on the floor surface P.

On the conventional free access floor,
There is no space between the floor surface P and the floor plate 22.

[0004]

However, in the above-mentioned conventional free access floor, the layout on the floor surface P and the blackout must be performed in the vertical and horizontal directions, and this operation is very troublesome, and the construction period is prolonged. Therefore, the construction cost was high.

In the conventional free access floor described above, since the four corners of the floor plate 22 are supported by the support legs 21, respectively, the contact portions are raised or
There was a problem that the steps tended to be uneven, the adjustment was troublesome, the construction period was prolonged, and the construction cost was high as in the case described above.

Further, in the above-mentioned conventional free access floor, a floor surface P serving as a wiring space and a floor plate 22 are provided.
Since there is no separation between the wires, it is difficult to distribute and wire strong wires such as power lines and weak wires such as communication lines.
There was a problem that a cross-connection accident between a strong electric wire and a weak electric wire would occur.

Accordingly, the present invention is to solve the above-mentioned conventional problems, and has a good construction efficiency, shortens the construction period, does not increase the construction cost, and causes a crossover accident between a strong electric wire and a weak electric wire. It is intended to provide a free access floor that will not be used.

[0008]

Therefore, in the free access floor of the present invention, a plurality of rows of support legs 1 are provided on a floor surface P.
An elongated floor plate 2 is disposed between the support legs 1 arranged in a straight line and in a plurality of rows.
It is assumed to have been built.

In the free access floor according to the present invention, a bent concave portion 12 may be provided at a central portion of the long floor plate 2 in the longitudinal direction.

Further, in the free access floor according to the present invention, a central portion in the longitudinal direction of the long floor plate 2 is entirely depressed to form a wiring tray portion 13, and a cross section is provided at the longitudinal center of the wiring tray portion 13. May be provided with a separator 15 having a substantially inverted T-shape.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a free access floor according to the present invention will be described in detail with reference to the drawings shown as an embodiment.

In the free access floor according to the present invention, the support legs 1 are arranged in a plurality of rows on the floor surface P in a straight line.
An elongated floor plate 2 is provided between each of the support legs 1 arranged in a plurality of rows. In this case, in order to arrange the support legs 1 in a plurality of rows and a straight line on the floor surface P, the long floor plate 2 itself serves as a ruler. Alternatively, it may be performed only in one lateral direction.

The support leg 1 has a height adjusting screw 4 erected on a base plate 3, a receiving nut 5 is screwed into the height adjusting screw 4, and a receiving table 6 is placed on the receiving nut 5. . That is, the receiving base 6 has two receiving grooves 7, 7 formed on the upper part thereof at right angles in the vertical and horizontal directions.
A receiving hole 8 is formed in a lower portion. The receiving nut 5 is inserted into the receiving hole 8, and a small projection 9 formed on a flange portion 5 a of the receiving nut 5 is formed at a lower end of the receiving hole 8. It is mounted on the receiving nut 5 by being fitted and positioned in one of a plurality of small depressions 10 (see FIG. 4) formed along the inner peripheral groove 8a.
The support leg 1 can adjust the height of the receiving base 6 by screwing a receiving nut 5 screwed into the height adjusting screw 4.

The elongated floor plate 2 is composed of two types. One is provided with bent portions 11 at both ends in the longitudinal direction and the other is provided with a bent concave portion 12 at the center in the longitudinal direction. I have. The bent portion 11 may be simply bent downward at right angles as shown in FIG. 5 or may be bent several times downward or inwardly at right angles as shown in FIG. Can be. The other long floor plate 2 has bent portions 11 at both ends in the longitudinal direction as shown in FIGS. 5 and 6, and the central portion in the longitudinal direction is entirely depressed. The wiring tray 13 is used. The central portion in the longitudinal direction is the wiring tray 13
In the long floor plate 2 described above, the wiring tray 13
Is provided. Further, in the long floor plate 2, a separator 15 having a substantially inverted T-shaped cross section is disposed at the center of the wiring tray portion 13 in the longitudinal direction. The elongate floor plate 2 is inserted into the elongate or lateral receiving grooves 7 of the receiving base 6 of the supporting legs 1 between the supporting legs 1 arranged in a plurality of rows. Floor plate 2
By inserting each of the bent parts 11, 11 of
An elongated floor plate 2 is provided on these support legs 1. The two types of long floor plates 2 can be alternately or alternately arranged between the support legs 1 arranged in a plurality of rows.

The receiving base 6 of the supporting leg 1 for supporting the elongated floor plate 2 laid by the wall is not provided with the receiving groove 7 as shown in FIG. The floor plate 2 may be supported.

The free access floor of the present invention is completed by laying a tile carpet (not shown) or the like on the upper surface of the laid long floor plate 2.

[0017]

The free access floor according to the present invention is constructed as described above, so that it is only necessary to perform the allocation and the inking on the floor surface P in one direction, so that the construction efficiency is good and the construction period is short. It does not mean that construction costs are expensive. In addition, since the strong electric wires and the weak electric wires can be separately distributed and wired to the wiring tray portions 13 separated by the separator 15 of the long floor plate 2, a cross-connection accident between the strong electric wires and the weak electric wires occurs. Not at all.

In the free access floor according to the present invention, since both ends of the long floor plate 2 are supported by the support legs 1, the four corners of the floor plate 22 are respectively supported by the support legs 21 as in the prior art. As a result, the contact portion does not rise or become uneven, and the workability is excellent. Moreover,
The long floor plate 2 can be cut at the construction site and its length can be freely changed, so that the construction becomes easy.
Therefore, when the long floor plates 2 having the changed lengths are combined, the inefficient floor plate layout by the conventional combination of the square floor plates 22 can be performed very efficiently. Can be.

Further, in the free access floor according to the present invention, the strength against the load applied to the elongated floor plate 2 is enhanced by the bent concave portion 12 provided at the longitudinal center of the elongated floor plate 2. Also, the walking feeling does not deteriorate.

[Brief description of the drawings]

FIG. 1 is a plan view of a free access floor according to the present invention.

FIG. 2 is a sectional view taken along line AA in FIG.

FIG. 3 is an exploded perspective view of a support leg of the free access floor according to the present invention.

FIG. 4 is a bottom view of a support base of the support leg shown in FIG. 3;

FIG. 5 is a sectional view of a main part showing one embodiment of the free access floor of the present invention.

FIG. 6 is a sectional view of a main part showing another embodiment of the free access floor of the present invention.

FIG. 7 is a perspective view showing another embodiment of the support leg of the free access floor of the present invention.

FIG. 8 is an explanatory diagram of a conventional free access floor.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Support leg 2 Elongated floor plate 12 Bent recess 13 Wiring tray part 15 Separator

Claims (3)

[Claims] A plurality of rows of support legs (1) are provided on a floor (P).
A free access floor, wherein a long floor plate (2) is erected between each of the support legs (1) arranged in a straight line and in a plurality of rows. 2. The free access floor according to claim 1, wherein a bent recess is provided in a central portion of the long floor plate in a longitudinal direction. 3. A wiring tray portion (13) having a central portion in the longitudinal direction of the elongated floor plate (2) entirely recessed, and a cross section substantially at the center in the longitudinal direction of the wiring tray portion (13). 2. The free access floor according to claim 1, wherein an inverted T-shaped separator is provided.