JP2771384B2 - Raised access floor panel - 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 used as a floor structure in a computer room or the like.

[0002]

2. Description of the Related Art Conventionally, this type of panel for a free access floor has a small number of ribs arranged on the back surface of the panel, and a type having a wide pitch is mainly used when installing an apparatus.
It was necessary to consider dispersion load.

[0003]

In the above-mentioned prior art panel for a free access floor, the number of ribs arranged on the back surface of the panel is small, and the pitch between the ribs is wide, so that a concentrated load is applied between the ribs. In addition, there have been drawbacks such as distortion of the panel main body, a step between the panels, and breakage of the panel.

[0004] It is an object of the present invention to provide a new raised floor panel which can withstand a concentrated load in order to overcome the drawbacks of the conventional raised floor panel.

[0005]

In order to achieve the above object, a panel for a free access floor according to the present invention is a panel for a free access floor having a floor unit, a large rib, a middle rib, and a small rib. And the floor unit is
It is a square fixed unit for constructing a free access floor by combining and arranging two or more, and the large ribs are formed on the back surface of the floor unit in four sides along the outer peripheral edge so as to form a large area. The middle ribs are vertically and horizontally arranged in parallel in a large area surrounded by the large ribs, and are formed so as to form a grid-shaped square middle area, and the small ribs are In the square middle area surrounded by the lattice-shaped middle ribs, and in the rectangular small area of the periphery surrounded by the large ribs and the middle ribs, the protrusion is formed at a rising height of about half the height of the middle ribs, The middle area and the small area are divided into squares, and the large ribs and the adjacent middle ribs are narrowly spaced and substantially form the outer edge ribs of the floor unit.
And the large ribs and the middle ribs forming the outer edge ribs
Compartments formed at each of the four corners of the knit are holes for inserting support legs.
In the insertion hole, there is a slide for preventing the support leg from being displaced.
The topper is protruded.

[0006]

[0007]

[0008]

The large rib and the middle rib adjacent thereto form substantially the outer edge rib of the floor unit, and there is no bending when the four corners are supported by the supporting legs. Since the space between the middle ribs and the small ribs forming the region and the small region is narrow, the structure withstands a concentrated load and does not bend or deform.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. 1 is a rear view showing an embodiment of a panel for a free access floor according to the present invention, FIG. 2 is a sectional view taken along line AA of FIG. 1, and FIG. 3 is a sectional view taken along line BB of FIG. is there.

In the figure, a panel for a free access floor according to the present invention comprises a floor unit 1, large ribs 2, middle ribs 3, and small ribs 4.

The floor unit 1 is of a square, fixed shape having a thick structure, and a plurality of units are arranged vertically and horizontally, and each unit is supported on a supporting leg to construct a free access floor.

The large ribs 2 are formed so as to protrude from the four sides on the outer periphery of the back surface of the floor unit 1 in the form of a girder, and form large square areas. The large ribs 2 on each side are located at the center in the length direction. Deformation is prevented as a thick structure toward.

The middle ribs 3 are formed in a large area surrounded by the large ribs 2 in the shape of a girder and project in a grid pattern in parallel in the vertical and horizontal directions. Is formed. The middle rib 3 is almost the same height as the large rib 2, and the middle rib 3 adjacent to the large rib 2 is provided very close to the large rib 2, and both form substantially the outer edge rib. doing. The section surrounded by the large rib 2 and the vertical and horizontal middle ribs 3 forms a rectangular small area, and the sections at each of the four corners are holes 5 for supporting leg insertion.

The small ribs 4 further divide the middle area surrounded by the grid-shaped middle ribs 3 in the vertical and horizontal directions, and further divide the rectangular section of the outer small area into two to form a square. . The rising height of the small ribs 4 is half the rising height of the large ribs 2 and the middle ribs 3.

In the present invention, the size of the square medium region is set to twice the size of the rectangular small region. The small region is a groove formed between the large rib functioning as the outer edge rib and the middle rib. The groove width is narrow, and therefore, the vertical and horizontal middle ribs forming the middle region are densely arranged.

The four corners of the rear surface of the floor unit are square sections defined by large ribs and vertical and horizontal middle ribs.
This section is the insertion hole 5 of the support leg 7, and in the hole 5,
A stopper 5a for preventing displacement of the support leg 7 is provided in a protruding manner. On the other hand, on the surface of the floor unit 1, an antistatic material 6 is provided.

The floor unit 1, the large rib 2, the middle rib 3, the small rib 4, and the stopper 5 are formed as an aluminum die-cast product.

In the present invention, the square middle area A1 provided in the center of the floor unit 1 in a lattice pattern is limited to a size within twice the rectangular small area A2. Increases the number of square small areas A1 per unit area. That is, the number of ribs increases, the pitch between the ribs decreases, the resistance to the load applied to the center of the floor unit increases, and no bending or deformation occurs.

[0019]

As described above, according to the present invention, the peripheral portion is reinforced, and the four corners surrounded by the large ribs and the middle ribs are reinforced without deformation or bending due to the concentrated load or impact applied to the panel. While forming a square support leg insertion hole in the section,
Since a stopper for preventing displacement is protrudingly provided in this section to fix the support legs, there is no gap between the panels, and an antistatic material is provided on the surface of the floor unit to prevent trouble due to static electricity. Has the effect of preventing

[Brief description of the drawings]

FIG. 1 is a rear view showing an embodiment of the present invention.

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

FIG. 3 is a sectional view taken along line BB of FIG. 1;

[Description of Signs] 1 Floor unit 2 Large rib 3 Medium rib 4 Small rib 5 Insertion hole 5a Stopper for preventing misalignment 7 Support leg 6 Electrostatic antistatic material

────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shoji Shirai 5-29-11, Shiba, Minato-ku, Tokyo Inside NEC Construction Corporation (72) Inventor Masahiko Harashina 3-3-1, Shimbashi, Minato-ku, Tokyo No. Modern City Development Co., Ltd. (56) References JP-A-1-111956 (JP, A) JP-A-2-197661 (JP, A) Jikai Sho-63-14729 (JP, U) (58) Survey Field (Int.Cl. ⁶ , DB name) E04F 15/024 601 E04F 15/024 602 E04F 15/18

Claims (1)

(57) [Claims] 1. A free access floor panel having a floor unit, a large rib, a middle rib, and a small rib, wherein the floor unit is a square having a combination of two or more to form a free access floor. A large-sized rib is formed on the back surface of the floor unit in a cross-shaped manner along the outer periphery on four sides to form a large area, and the middle rib is surrounded by the large rib. The large ribs are arranged vertically and horizontally in parallel, and are formed so as to protrude by forming a grid-shaped square middle area.The small ribs are formed in the square middle area surrounded by the grid-shaped middle rib. A protruding height of about half the height of the middle rib is formed in a rectangular small area around the periphery surrounded by the large rib and the middle rib to partition the middle area and the small area into a square. The distance between the rib and the adjacent middle rib is Ku, substantially all SANYO forming the outer ribs of the floor unit, the floor unit by the middle and large ribs forming the outer rib ribs
The sections formed at each of the four corners of the support
In the insertion hole, there is a stopper for preventing the support leg from shifting.
Panels for raised floors, characterized in that the panels are protruded .