JPH0913639A - Floor panel for free access floor - Google Patents

Abstract

PURPOSE: To prevent a person from being injured when he touches the lower edge where the circumferential end surface and reverse surface of a panel body mutually cross by forming an inclined surface extending from the circumferential end part of the panel body to an outer circumferential rib formed around four sides of the reverse surface of the panel body to surround it. CONSTITUTION: A panel body 1 is molded into a flat square form by die casting, and an outer circumferential rib 2 is integrally formed around four sides of the reverse surface. The rib 2 is arranged on the side slightly inner from the circumferential end part 1a of the body 1, and an inclined surface 4 is formed extending from the circumferential end part 1a to the rib 2. The lower edge 1a' where the circumferential end part 1a and reverse surface of the body 1 mutually cross never has an acute angle even when the circumferential part 1a is cut by a cutter, return burr is hardly adhered to the lower edge, and the danger of being injured is eliminated even if the lower edge is touched.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor panel for a free access floor, and more particularly to a floor panel for a free access floor formed by die casting.

[0002]

[Technical background] When this kind of floor panel is formed by die casting, traces of the sprue and overflow parts removed at the peripheral edge of the panel body remain in a non-uniform height, so the panel body It is necessary to cut the peripheral edge with a cutter to prepare the peripheral edge. Also, when a surface material such as tile is pasted on the surface of the panel body,
The peripheral edge of the panel body is cut by a cutter together with the surface material so that the peripheral edge of the panel body and the peripheral edge of the surface material are perfectly aligned.

[0003]

[Prior Art] However, in this kind of conventional floor panel,
As shown in FIG. 3, when the peripheral end 1a of the panel body 1 is cut with a cutter, the peripheral end surface and the back surface 1 of the panel body 1 are cut.
A burr called a return burr easily occurs and adheres to the lower end edge 1a ′ where the b intersects with the b, and the burr b is packed at the time of packaging or panel laying.
As a result, there were problems such as being injured and burrs b falling off when laying the panel and soiling the floor. Further, since the lower end edge 1a 'where the peripheral end surface of the panel body 1 and the back surface 1b intersect is machined into a sharp-edged cutting edge, the part may be injured when laying the panel. .

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the related art, and even if the peripheral end of the panel body is cut by a cutter, a return burr hardly adheres to the panel and It is intended to provide a floor panel for a free access floor, which is not injured even if it touches the lower end edge where the peripheral end surface and the back surface of the main body intersect.

[0005]

A floor panel for a free access floor of the present invention which achieves the above object is a floor panel for a free access floor which is formed by die casting and comprises a peripheral end portion of a panel body and It is characterized in that an inclined surface is formed over the outer peripheral ribs which are formed on the four circumferences of the back surface of the panel body.

[0006]

An embodiment of the present invention will be described below with reference to the drawings. The panel body 1 is formed by die casting into a flat square shape having a side length of, for example, 45 cm.
The outer peripheral ribs 2 are formed in the same body over the four circumferences of the back surface, and the reinforcing ribs 3 are formed in the same body on the entire inner surface surrounded by the outer peripheral ribs 2. Incidentally, reference numeral 5 in the figure denotes a surface material such as a tile.

The outer peripheral rib 2 is formed at a height of, for example, 3 cm from the back surface of the panel body 1, and is slightly inside the peripheral end portion (face) 1a of the panel body 1, specifically, the panel body 1
Even after the peripheral end portion 1a is cut by a cutter and the peripheral end surface is adjusted, the peripheral end portion 1a is arranged so as not to reach the outer peripheral surface of the outer peripheral rib 2, for example, about 1 cm inside.

On the outer periphery of the outer peripheral rib 2, an inclined surface 4 is formed so as to extend over the peripheral end portion 1a of the panel body 1 and the outer peripheral rib 2. That is, the inclined surface 4 is formed in the same body from the lower end edge 1a 'where the peripheral end surface and the back surface of the panel body 1 intersect to almost the middle of the outer peripheral rib 2.

The inclined surface 4 is formed so as to surround four edges of the panel body 1 similarly to the outer peripheral rib 2, but has a gradient of θ = 45 ° -60 ° with respect to the peripheral end portion (surface) 1a of the panel body 1. It is preferable to form as described above. The reason is that if the inclination of θ is 45 ° or less, the machining allowance for cutting the peripheral end portion 1a of the panel body 1 becomes difficult, but if the inclination of θ is 60 ° or more, the circumference of the panel body 1 is small. This is because the lower edge 1a 'where the end face and the back face intersect becomes close to an acute angle as in the conventional case.

[0010]

As described above, the floor panel for a free access floor of the present invention has an inclined surface formed between the peripheral edge portion of the panel body and the outer peripheral rib, so that the peripheral edge portion of the panel body is cut by a cutter. Even if the lower end edge where the peripheral end face and the back face of the panel body intersect is not an acute angle, as a result,
The return burr is less likely to adhere to the lower end edge, and the risk of injury even if the lower end edge is touched is eliminated.

[Brief description of the drawings]

FIG. 1 is a side view showing an example of implementing the present invention.

FIG. 2 is a rear view of FIG.

FIG. 3 is a side view showing a conventional example.

[Explanation of symbols]

1 ... Panel main body 1a ... Peripheral end (surface) 1a '... Bottom edge 2 ... Outer peripheral rib 3 ... Reinforcing rib 4 ... Inclined surface 5 ... Surface material

Claims (1)

[Claims] 1. A floor panel for a free access floor, which is formed by die casting, wherein an inclined surface is formed between a peripheral end portion of the panel body and outer peripheral ribs which are formed around four rear sides of the panel body. A floor panel for free access floors.