JPS6317794Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an improvement of a floating floor type floor board device that is applied to a room that requires space under the floor.

Conventionally, floating floor board systems have been used in rooms where equipment such as electronic computers, telephone exchanges, and control equipment are installed, so that the numerous wiring cables that connect the equipment do not interfere with the work of administrators. It is housed in the space under the floor.

In addition, the above-mentioned floating floor type floor board device is provided with screw-type height adjustment members at the four corners of the square floor board, so that the construction height position of the square floor board can be freely adjusted. things are used.

Therefore, the floorboards used in the above-mentioned floating floorboard devices must have sufficient strength to withstand the weight of the equipment, be made of a uniform material that is unaffected by changes in temperature and humidity, and have heat retention properties that enable air conditioning in the room. Inorganic molded boards such as calcium silicate boards and asbestos cement boards are often used because stable walking and workability that reduces worker fatigue is required. teeth,
If the board is made thicker to increase its load-bearing capacity,
It has the drawbacks of increased weight and significantly poor workability.

This invention was made in order to solve the above problems, and when using the inorganic molded plate, it is possible to increase the load resistance without making the plate thicker, and it also has excellent workability and structure. The object of the present invention is to provide a height-adjustable floor board device that is simple and easy to manufacture.

Hereinafter, this invention will be explained in detail based on the drawings showing one example of its implementation.

In the drawings, reference numeral 1 denotes a square inorganic molded substrate forming a floor board, and this substrate consists of a plurality of asbestos cement calcium silicate plates 1a, 1a formed into a sheet shape by a papermaking process, the fiber directions of which are perpendicular to each other. It is formed by positioning the sheets in the same direction as shown in FIG.

A thin metal plate 2 made of steel and made to have almost the same dimensions as the floor board 1 is bonded to the entire back side of the floor board 1 with an adhesive, and this composite board made of the board 1 and the thin metal plate 2 has the following features: Circular holes 3 are drilled at each of its four corners, and from the back side of each hole 3, the entire screw tube 4a, which is approximately equivalent to the length of the hole 3 that constitutes the metal flanged nut 4, is inserted into each hole 3. The flange plate 4b is press-fitted and overlapped on the surface of the thin metal plate 2, and its peripheral edge 4c is joined to the thin metal plate 2 by welding.

The screw cylinder 4a of the metal flanged nut 4 has a screw shaft column 5 having a screwdriver insertion groove 5a on the upper end surface.
is screwed in, so that the screw shaft column 5 can be rotated through the hole 3 that opens on the upper side of the floor board 1. 6 is a rubber anti-slip seat attached to the lower end of the screw shaft column.

The floor board device configured as described above has a third
As shown in the figure, four screw shaft posts 5 are erected on the subfloor surface G of the room, and the screw shaft posts 5 are rotated from above the floor board to align the heights of the floor boards and install them. According to this configuration, the load bearing capacity of the floor board can be significantly enhanced.

That is, the thin metal plate 2 is entirely superimposed on the back surface of the floor board 1, and the entire screw cylinder 4a of the flanged nut 4, which is approximately the length of the hole 3, is fitted into a hole drilled through both of them. In a configuration in which the flange plate 4b of the flanged nut is brought into contact with the thin metal plate 2 and joined by welding, the four corners of the floor board are bent due to the deflection that occurs in the floor board due to the centrally concentrated load on the floor board. Flange plate 4 of nut 4 with flange
The welded joint between the flange plate 4b and the thin metal plate 2 effectively prevents the floor board from floating away from the base plate 4b, and this acts to suppress the deflection of the central part of the floor board, so the support by the thin metal plate 2 is effective. Combined with this effect, the load bearing capacity of the floor board can be significantly improved. Therefore, the thickness of the floor board can be reduced and the weight can be reduced.

As described above, according to this invention, a thin metal plate is entirely bonded to the back surface of a floor substrate made of an inorganic molded plate, and a composite plate consisting of the floor substrate and the thin metal plate has adhesives attached at multiple points. A hole is provided in a penetrating shape, and the entire screw cylinder approximately corresponding to the length of the hole of the flanged nut is inserted into each hole, and the flanged plate of the flanged nut is brought into contact with the thin metal plate and welded. Since it is bonded to the thin metal plate, the load bearing capacity of the floor board can be strengthened and the weight can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a side view of a floor board device showing an embodiment of this invention, Fig. 2 is a plan view, Fig. 3 is an enlarged sectional view of the main part, and Fig. 4 is an exploded view of the main part. be. 1...Floor board, 2...Thin metal plate, 3...
Hole, 4... Nut with flange, 4a... Spiral cylinder approximately corresponding to the length of hole 3, 4b... Flange plate, 5... Screw shaft column, 6... Anti-slip seat.

Claims (1)

[Scope of utility model registration request] A thin metal plate is adhered to the entire back surface of a floor substrate made of an inorganic molded plate, and the composite plate made of the floor substrate and the thin metal plate has holes penetrating through it at multiple locations, and each hole has a flange. The entire screw barrel approximately corresponding to the length of the hole of the flanged nut is fitted, and the flange plate of the flanged nut is brought into contact with the thin metal plate and is joined to the thin metal plate by welding. floor board equipment.