JPH04221166A - Floor panel - Google Patents

Abstract

PURPOSE:To secure strength for the horizontal load which acts in a supporting leg installation hole and prevent the deformation of a floor panel by using a supporting leg holder having a flange part which is in close contact with the reverse surface plate of a floor panel and forming a bead part for reinforcement on the periphery of the supporting leg installation hole at least on the obverse surface plate, and increasing rigidity. CONSTITUTION:As for a floor panel 1 on which a supporting leg 6 is installed integrally, a supporting leg holder 7 having flange parts 26 and 27 which are in contact in sealed form with a reverse surface plate is inserted into a supporting leg installation hole which is formed in penetration on the obverse and reverse surface plates 2 and 3 of the floor panel 1. A plurality of bead parts 30 are formed in the radial direction, continuously from the supporting leg installation hole on the obverse or reverse surface plate or on both the surface plates.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel that is laid on a reference floor surface to form a double floor structure and is integrally provided with support legs.

0002

[Prior Art] In a conventional floor panel, through-holes are formed in a flat front plate and a back plate, and support legs are attached to these holes through support leg receiving members. (Refer to Utility Model Publication No. 140133/1983).

0003

[Problems to be Solved by the Invention] However, in conventional floor panels, since the area around the hole in the surface plate of the floor panel is flat, horizontal loads due to support legs due to earthquakes etc. are applied to this hole. If this occurs, the surrounding area may buckle, deform the hole, and cause the support leg to wobble. In addition, to prevent the hole from deforming,
Although it is necessary to increase the thickness of the surface plate or to provide a reinforcing member, these methods pose problems of increased cost, increased weight, and increased man-hours.

The present invention has been made in view of the above-mentioned problems of the conventional technology, and its object is to provide a floor panel with a flange portion that is in close contact with the back plate of the floor panel. Using a support leg holder, a reinforcing bead is formed at least around the support leg attachment hole of the surface plate to improve rigidity, thereby ensuring strength against horizontal loads acting on the support leg attachment hole. It is.

[0005]

[Means for Solving the Problems] Accordingly, the floor panel of the present invention is a floor panel in which support legs are integrally attached via a support leg holder, in which a front plate and a back plate of the floor panel are penetrated. A support leg holder provided with a flange portion that comes into close contact with the back plate is fitted into the formed support leg mounting hole, and the front plate or the back plate,
Alternatively, a structural feature is that a plurality of reinforcing bead portions are continuously formed radially from both support leg attachment holes.

[0006]

[Function] According to the floor panel configured as described above, the support leg is integrally attached to the floor panel via the support leg holder having a flange portion that makes intimate contact with the back plate of the floor panel. A plurality of reinforcing beads are formed continuously radially from the support leg mounting holes on the front panel, back panel, or both of the support leg mounting holes, so that the support legs can be protected against earthquakes, etc. When a horizontal load acts on the support leg holder, the load acts on the support leg mounting holes on the front and back plates through the support leg holders, but on the back plate, there is a wide contact between the bottom and the support legs. On the other hand, in the surface plate, the area around the support leg attachment hole, whose rigidity is increased by the reinforcing bead portion, resists the load and prevents deformation of the floor panel.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

The floor panel 1 is made by integrally joining a front plate 2 and a back plate 3 made of steel plates, and an inorganic filler 4 is sealed in a hollow space formed by the front plate 2 and the back plate 3. It is configured as follows.

The surface plate 2 has a substantially square shape as a whole, and supports legs 6 are provided slightly inwardly of each corner portion 5.
A support leg mounting hole 8 is provided into which the support leg holder 7 to which the support leg holder 7 is screwed is inserted. Around the support leg mounting hole 8, buckling occurs in the surface plate 2 against the load acting in the horizontal direction on the surface plate 2 due to the tilting of the support leg 6 caused by an earthquake, etc., and the support leg mounting hole 8 In order to prevent deformation of the periphery of the supporting leg mounting hole 8, a plurality of reinforcing bead portions 10 are provided that continuously extend radially from the supporting leg mounting hole 8. The reinforcing bead portion 10 has a cross section formed as a concave groove projecting toward the lower surface side. Further, around the support leg attachment hole 8, a reinforcing rib 9 is provided which is formed into a substantially circular shape in plan view and has a concave cross section. Furthermore, reinforcing ribs 13 having a cross-sectional shape similar to the reinforcing rib 9 are provided along the wiring ports 12 provided at predetermined locations on the peripheral edge portion 11 in a substantially channel-like shape in plan view.

The back plate 3 has a planar shape substantially corresponding to the front plate 2, and has an inclined wall 15 extending downwardly formed inside the outer edge 14, and is surrounded by the lower end of the inclined wall 15. A bottom portion 16 is formed. A support leg holder 7 is provided inside each corner portion 5, and is coaxial with the support leg mounting hole 8 of the front plate 2 when the front plate 2 and the back plate 3 are integrated.
A support leg mounting hole 17 is formed into which the support leg is inserted.

In the floor panel 1, a front plate 2 and a back plate 3 are put together, and the outer edge 18 of the front plate 2 is bent in a crimp shape at the peripheral edge 11 so as to surround the outer edge 14 of the back plate 3. At the same time, this joint portion is subjected to a stub or caulking process, and the front plate 2 and back plate 3 are joined at a predetermined location in the in-plane central portion to improve the integrity. An inorganic filler 4 made of mortar is sealed in a hollow portion formed by the front plate 2 and the back plate 3. Further, in each corner portion 5, a quadrant-shaped step portion 19 and a notch portion 20 are formed, and a locking groove 21 is formed on the back side. In addition, in the figure, 22
1 shows a blocking plate that is removably attached to a wiring port 12 provided in a floor panel 1.

The support leg holder 7 is fitted into a through support leg attachment hole 23 formed by coaxially aligning the support leg attachment hole 8 of the front plate 2 and the support leg attachment hole 17 of the back plate 3. A fitting member 24 made of resin and a screw member 25 press-fitted into the fitting member 24 are integrated. The fitting member 24 has a tapered upper part, and the top plate 2
The flange portion 26 is formed at the lower part of the support leg mounting hole 8, and the back plate is It has the function of ensuring a wide contact area with the bottom part 16 of the back plate 3 and dispersing the load from the back plate 3. In addition, screw member 2
5 is formed with a flange portion 27 corresponding to the flange portion 26 of the fitting member 24. The support leg 6 has a threaded portion 28 formed on its outer circumferential surface that is screwed into a threaded member 25 of the support leg holder 7, and a groove 29 provided at the upper part exposed above the floor panel 1 is inserted with a screwdriver. The height can be adjusted in the vertical direction by engaging and rotating the handles.

FIG. 4 shows a second embodiment in which a structure similar to that of the reinforcing bead portion 10 of the above-mentioned front plate 2 is applied to the back plate 3, that is, the support leg attachment of the back plate 3 is The floor panel 1 is shown in which a reinforcing bead portion 30 is provided around the hole 17 to further improve the strength against the horizontal load applied by the support legs 6.

[0014]

As explained above, according to the floor panel of the present invention, the support legs are fitted into the support leg attachment holes of the front plate and the back plate of the floor panel, so that the flange portions of the support legs are fitted into the floor panel. The support leg holder is screwed onto the support leg holder that is in close contact with the back plate, and is continuous from the support leg attachment hole around the support leg attachment hole in the front plate or the back plate of the floor panel, or both. A plurality of reinforcing bead portions are formed radially. Therefore, even if the support legs are tilted due to an earthquake and a horizontal load is applied to the support leg mounting holes of the front and back plates through the support leg holders, the back plate will receive the load over a wide contact area. On the other hand, in the surface plate, the periphery of the support leg attachment hole is reinforced by the reinforcing bead, which has the effect of preventing deformation of the floor panel and improving earthquake resistance.

[Brief explanation of the drawing]

FIG. 1 is a plan view of a floor panel of the present invention.

FIG. 2 shows details of the fitted state of the support legs,
FIG. 2 is a sectional view taken along line A-A in FIG. 1;

FIG. 3 is a perspective view showing the vicinity of the support leg.

FIG. 4 is a perspective view showing a second embodiment of the present invention in which a reinforcing bead portion is formed around the support leg attachment hole of the back plate.

[Explanation of symbols]

1 Floor panel 2　Surface plate 3 Back plate 6 Support legs 7 Support leg holder 8 Support leg mounting holes on the surface plate 10　Reinforcement bead part of surface plate 17 Support leg mounting hole on back plate 23 Support leg mounting hole 26 Flange part of fitting member 27 Flange part of screw member 30 Reinforcement bead part of back plate

Claims (1)

[Claims] 1. In a floor panel to which support legs are integrally attached via a support leg holder, a support leg mounting hole that is formed penetratingly through a front plate and a back plate of the floor panel is in close contact with the back plate. A support leg holder equipped with a flange that comes into contact with the support leg holder is fitted, and a plurality of reinforcing beads are formed continuously radially from the support leg mounting holes on the front plate, the back plate, or both. A floor panel featuring