JPH0557759B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a radio wave absorbing panel for a building.

(Prior art) Figure 3 shows a conventional radio wave absorbing panel of this type, in which a ferrite tile b is placed on a concrete frame a.
A decorative tile c was layered on top of the same tile b using an adhesive. d in the same figure is a reinforcing reinforcing bar.

Fig. 4 shows another example of a conventional radio wave absorbing panel, in which a ferrite tile f is sandwiched between the legs of a finished tile e, which has a pair of leg pieces drilled from the surface plate, and the finished tile is attached to a concrete frame. It was anchored through the leg piece. In the figure, g is a radio wave reflecting mesh.

(Problem to be solved by the invention) However, the former uses adhesive, and in the event of a fire, the adhesion effect of this adhesive decreases, and the decorative tiles for surface finishing are separated and fall onto others, resulting in people being injured. There is a risk of damaging the

In the latter case, the surface material can be fixed to the concrete structure by physical force without using an adhesive, but the thickness becomes thicker than the shape of the surface material, and the radio wave absorption performance deteriorates.

The present invention was proposed in view of the problems of the prior art, and its purpose is to:
The object of the present invention is to provide a radio wave absorbing panel which can make the thickness of the surface material as thin as possible without fear of peeling and has excellent radio wave absorption performance.

(Means for Solving the Problems) In order to achieve the above object, the radio wave absorbing panel according to the present invention includes an exterior tile with a convex cross section and horizontal protrusions having through holes protruding from the rear of both sides. and an exterior tile with a square-shaped cross section with locking recesses cut out at the rear of both sides. a radio wave absorbing ferrite tile is placed on the back of the convex exterior tile, a metal radio wave reflecting plate is superimposed on the back of the ferrite tile, and the reflecting plate is fixed to the concrete frame; The reflective plate and the ferrite tile are bound to the convex exterior tile via a rope inserted through a through hole of a horizontal protrusion in the convex exterior tile.

(Function) In the present invention, an exterior tile with a convex cross section and an exterior tile with a square shape are layered on the front surface of a concrete frame so that their horizontal protrusions and locking recesses engage with each other. constituting an exterior material, arranging a radio wave absorbing ferrite tile on the back side of the convex exterior tile, layering a metal radio wave reflecting plate on the back side of the tile, and fixing the reflecting plate on the concrete frame; Using a through hole provided in a horizontal protrusion protruding from the rear of both sides of the convex exterior tile, the ferrite tile and metal radio wave reflecting plate are inserted through the through hole and protruded through the rope. By binding the ferrite tiles to the exterior tiles of the mold, the ferrite tiles and exterior tiles are securely attached to the concrete frame via the metal radio wave reflecting plate, preventing the exterior tiles and ferrite tiles from peeling off, and preventing the walls of the exterior tiles from falling off. The thickness can be reduced to the limit of its mechanical performance, and the radio wave absorption effect can be improved.

(Example) The present invention will be described below with reference to the illustrated embodiments.

A has horizontal protrusions 1 drilled from the rear of both sides,
In addition, the exterior tile has a convex cross section with a through hole 2 drilled in the protrusion 1, and B has a locking recess 3 at the rear of both sides.
The exterior tile B has a square cross section with a cutout, and both the exterior tiles A and B are attached to the concrete frame C such that the protrusion 1 and the locking recess 3 of each adjacent tile are engaged with each other. layered on the front of the Note that the back surface of the exterior tile B is formed into a rough surface in order to achieve close contact with the same body C.

A ferrite tile D as a radio wave absorbing material is layered on the back surface of the convex exterior tile A, and a metal radio wave reflecting plate E made of aluminum or iron plate is attached to the back surface of the ferrite tile D. Anchor hardware 4 is provided protruding from the back surface of the radio wave reflecting plate E and is fixed to the frame C.

A rope 5 made of carbon fiber or aramid fiber with low conductivity is inserted through the through hole 2 provided in the horizontal protrusion 1 of the convex exterior tile A, and the ferrite tile D and A metal radio wave reflecting plate E is integrally bound to the exterior tile A.

Since the illustrated embodiment is configured as described above, radio waves are absorbed by the ferrite tiles D, and radio wave reflection interference is prevented.

The ferrite tile D is tied together with the metal radio wave reflecting plate E to the exterior tile A via a rope 5 inserted through the horizontal protrusion 1 of the ferrite tile D.
Furthermore, since the radio wave reflecting plate E is fixed to the concrete body C through the anchor metal fittings 4, the exterior tiles A and the ferrite tiles D are firmly attached to the concrete body C, and there is no fear of them peeling off. .

As a result, the exterior tile can be made thinner to the limit of its mechanical performance, improving its radio wave absorption performance.

(Effects of the Invention) In the radio wave absorbing panel according to the present invention, both the exterior tiles having convex and square cross sections are engaged with each other by the horizontal protrusions and the locking recesses provided at the rear of each side. The concrete is layered on the front surface of the concrete body to form the exterior part, and using the through holes provided in the horizontal protrusion of the convex exterior tile, the convex exterior tiles are connected by ropes inserted into the holes. An exterior material is created by bundling a type exterior tile with a radio wave absorbing ferrite tile placed on the back of the tile, and a metal radio wave reflecting plate layered on the back of the tile and fixed to the frame. , the radio wave absorbing layer, and the radio wave reflecting layer are integrated into the concrete frame, and the exterior tile can be made thin enough to have mechanical performance, and as a result, the radio wave absorption performance can be improved.

Further, according to the present invention, materials such as dry tiles, tile tiles, stone, ceramics, etc. can be used as the exterior material.

[Brief explanation of drawings]

FIG. 1 is a cross-sectional plan view showing one embodiment of the radio wave absorbing panel according to the present invention, FIG. 2 is a partially cutaway perspective view, and FIGS. It is a perspective view showing a part of the absorption panel cut away. A... Convex exterior panel, B... Concave exterior panel, 1... Horizontal protrusion, 2... Through hole, 3... Locking recess, 4... Anchor hardware, 5... Rope.

Claims (1)

[Claims] 1. An exterior tile with a convex cross section and horizontal projections with through holes protruding from the rear of both sides, and an exterior tile with a square cross section with locking recesses cut out at the rear of both sides. layered on the front surface of the concrete frame so that the horizontal protrusions and locking recesses of both adjacent tiles engage with each other, and a radio wave absorbing ferrite tile is arranged on the back surface of the convex exterior tile,
A metal radio wave reflecting plate is layered on the back of the ferrite tile, and the reflecting plate is fixed to the concrete frame, and the radio wave reflecting plate is layered on the back side of the ferrite tile. A radio wave absorbing panel characterized in that the reflective plate and the ferrite tile are bundled together on an exterior tile.