RU2250318C1 - Raised floor panel - Google Patents

Abstract

FIELD: building, particularly raised floors for offices equipped with computers.

SUBSTANCE: panel includes bearing plate of timber-based material enclosed with metal shell from all plate sides. Shell is formed as two boxes, namely upper and lower ones. Each box has rectangular part defining upper and lower panel sides, and side edges folded along rectangular part perimeter. Folded side edges extend over half of end panel side height. Area of rectangular part of upper box exceeds that of lover part by (4-5)δ value, where δ is thickness of upper box. Folded side edges of upper and lower boxes are equal in height. End parts of adjacent side edges of each end plate side are pressed together in overlapped manner.

EFFECT: improved antistatic properties of raised floor, increased reliability of panel connection.

7 cl, 2 dwg

Description

The invention relates to the field of construction, in particular to the designs of raised floor panels with antistatic properties and intended for office rooms equipped with computers.

A raised floor panel is known, including a first metal element in the form of a box with a flat rectangular part having edges bent around its perimeter, and a second metal element similar to the first in shape. The first box is placed in the second, with the formation of a space filled with a reinforcing element, while the lateral edges of each edge of the panel mechanically interact with each other (FR 2683242, class E 04 F 15/024, 1993).

A disadvantage of the known solution is the high metal consumption of the panel due to the presence of two layers of metal on its side faces.

The closest analogue to the claimed invention is a raised floor panel comprising a wood material panel enclosed on all sides in a metal shell consisting of lower and upper ducts having a rectangular part, forming the upper and lower horizontal edges of the panel and the side edges bent around the perimeter of the rectangular part covering the end faces of the plate. In this case, the bent lateral edges of the upper duct cover half the height

end faces of the plate, and the other half is closed by the bent edges of the lower duct. Thus, the ends of the lateral edges of the upper and lower ducts are located opposite each other (DE 3843589, class E 04 F 15/024, 1990).

Due to the tolerances that exist when cutting metal sheets, it is extremely difficult to joint adjacent edges on the end faces of a known panel without gaps.

The technical task of the present invention is to increase the reliability of the connection of metal parts of the raised floor panel, increasing its tightness, without the use of additional fasteners.

This problem is solved due to the fact that in the raised floor panel, which includes a carrier plate made of wood material, enclosed on all sides in a metal shell, which is preliminarily given the form of two boxes - upper and lower, each of which has a rectangular part, forming respectively the upper and lower horizontal panel edges and lateral edges bent around the perimeter of the rectangular part, covering half the end face of the plate in height, the area of the rectangular part of the upper duct exceeds the square the lower part of the lower duct by an amount equal to 4-5 δ, where δ is the thickness of the upper duct, and the bent side edges of the upper and lower ducts are equal in height, while the end parts of adjacent lateral edges on each end face of the plate are overlapped.

The end faces of the panel of wood material are beveled inside the panel at an angle equal to 5-8 ° mainly 6 °.

The lateral edges of the boxes are made at an angle coinciding with the angle of inclination of the end faces of the plate in contact with them.

As a plate use wood chipboard.

The metal shell of the panel can be made of galvanized steel with a thickness of 0.4-1.0 mm, mainly 0.4-0.5 mm. Chipboard has a variable density in height, while layers with a high density of more than 800 kg / cm ³ and a tensile strength in the range of 0.785-1.177 MPa are located in the contact zone with the rectangular parts of the boxes.

The thickness of the panel is from 10 to 40 mm, mainly 38 mm, and the size in terms of 600 × 600 mm.

The invention is illustrated by drawings, which depict:

figure 1 - installation of raised floor panels on adjustable supports;

figure 2 is a section of a panel.

The raised floor panel, designed to be installed on adjustable supports above the base of the floor, consists of a particleboard 1, surrounded by a metal shell on all sides, which is previously shaped into two boxes 2 and 3, with open parts facing each other and located above and below the plate .

As a metal shell use galvanized steel with a thickness of 0.4-1 mm, mainly 0.4-0.5 mm

The particle board has a variable density in height, i.e. includes at least two horizontal layers of high density over 800 kg / cm ³ and tensile strength in the range of 0.785-1.177 MPa. These layers are located in the zones of the plate, bordering the inner surface of the metal shell.

In the case of using flooring panels for floors that accept heavy loads, for example, for floors for equipment or in storage rooms, the number of reinforcing

layers can be increased, i.e. in addition to the aforementioned surface layers of high density, there may be one or more intermediate layers arranged alternately with layers of lower density.

The end faces of the chipboard, which essentially form the end walls of the panel, are beveled to the base inside the panel at an angle of 5-8 °, preferably 6 °, with the possibility of contact of adjacent panels in their upper part. The inclined end walls of the panels provide their installation on the plates of adjustable racks having protruding upward ribs to fix the position of the floor panels.

The lower 2 and upper 3 boxes are made of a metal sheet by folding up the side edges located along the perimeter of the rectangular part of the sheet between the cut corners.

The area of the rectangular part of the upper box exceeds the area of the rectangular part of the lower box by an amount equal to 4-5 δ, where δ is the thickness of the upper box. The bent edges of both boxes are equal in height and the height of each of them is half the height of the end face of the plate.

The thickness is from 10 to 40 mm, mainly 38 mm, and the size in terms of 600 × 600 mm.

The manufacture of the panel is as follows.

Polymer glue, for example, vinyl glue, is applied to the surface of the chipboard, and placed in the lower box. Then the upper box is installed on the bottom and with the help of a roller press bend the corners of the upper box and overlap the lateral edges of the lower box.

The technical result of the invention is to increase the amount of compensation for inaccuracies in the manufacture of metal boxes, increasing the rigidity of the end faces of the panel and increasing

the bearing capacity of the plate, which allows to increase its dimensions in plan to 600 × 600 mm, install adjustable supports at a greater distance from each other, and therefore significantly reduce the cost of the floor.

Claims (7)

1. Raised floor panel, including a base plate made of wood material, enclosed on all sides in a metal shell, which is preliminarily given the form of two boxes - upper and lower, each of which has a rectangular part, forming respectively the upper and lower horizontal edges of the panel and bent around the perimeter the rectangular part of the side edges covering the height of half of the end face of the plate, characterized in that the area of the rectangular part of the upper duct exceeds the area of the rectangular part of the lower Orobie an amount equal 4-5δ, where δ - thickness of the upper duct, and bent upper and lower boxes are equal side edges in height, the end portions of adjacent side edges of each end plate faces are pressed overlap. 2. The panel according to claim 1, characterized in that the end faces of the panel of wood material are beveled inside the panel at an angle of 5-8 °, preferably 6 °. 3. The panel according to claim 2, characterized in that the side edges of the boxes are made at an angle coinciding with the angle of inclination of the end faces of the plate in contact with them. 4. The panel according to claim 1, characterized in that the chipboard is a wood chipboard. 5. The panel according to claim 1, characterized in that the metal shell is made of galvanized steel with a thickness of 0.4-1.0 mm, mainly 0.4-0.5 mm 6. The panel according to claim 4, characterized in that the particle board has a variable density in height, while layers with a high density of more than 800 kg / cm ³ and a tensile strength in the range of 0.785-1.177 MPa are located in the contact zone with the rectangular parts boxes. 7. The panel according to claim 1, characterized in that its thickness is 10-40 mm, mainly 38 mm, and the plan size is 600 × 600 mm.

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