JP2001280031A - Electromagnetic shield structure of window portion - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the electromagnetic shield performance of a window by preventing the leakage of the electromagnetic wave from a sash frame conducted to an electromagnetic wave shielding layer of a window member to a skeleton of a building. SOLUTION: The sash frame 6 is fixed to the skeleton 2 in an electrically insulated state by connecting a reinforcing frame 8 forming an outer peripheral portion of the sash frame 6 conducted to the electromagnetic wave shielding layer 3 of an electromagnetic shield glass 4 to an insulation anchor 11 with an end thereof embedded in the skeleton 2 in an electrically insulated state via an L-shaped angle 12 which is a connection member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electromagnetic shielding structure of a window for reducing electromagnetic waves that enter a building and leak from the room.

[0002]

2. Description of the Related Art In recent years, with the spread of communication systems, information transmission within a company has been carried out using a wireless LAN system or a business P
The use of a communication device such as an HS has been increasing. Therefore, electromagnetic waves (radio waves) from a communication device outside or inside the building enter the room where the communication device is placed, or another room outside or inside the building from the indoor communication device. There is a problem that the electromagnetic wave leaks to the communication device and the communication device malfunctions due to the influence of the intruding electromagnetic wave. Therefore, attempts have been made to form a wall, ceiling, window, or the like using an electromagnetic wave shielding material such as a conductive sheet material to shield the electromagnetic waves, and to make a space or room in a building an electromagnetic wave shielding space. For example, as an electromagnetic shielding structure of a window, an electromagnetic shielding layer in which a metallic mesh constituting an electromagnetic shielding layer is buried between two pieces of glass, or a highly transparent metal is formed on the surface by coating or sputtering. 5. An electromagnetic shield glass 5 having a surface coated with an electromagnetic wave shielding layer 50, as shown in FIG.
1 is a conductive sash frame 5 made of metal such as stainless steel.
For example, the electromagnetic shield glass 51 and the sash frame 52 are electrically connected to each other by using a sealing material 53 such as a conductive rubber or the like, and the electromagnetic shield of the window including the window and the periphery of the window is secured. Like that. That is, by electrically connecting the electromagnetic wave shielding layer 50 of the electromagnetic shielding glass 51 and the conductive sash frame 52 via the sealing material 53, the electromagnetic wave shielding layer 50, the sealing material 53, An electromagnetic shielding surface without a gap can be formed by the sash frame 52, preventing leakage and intrusion of electromagnetic waves, and ensuring electromagnetic shielding and lighting at the window and around the window. As shown in detail in FIG. 6, the sash frame 52 includes a glass mounting frame 54 for fixing the outer peripheral portion of the electromagnetic shield glass 51, a square pipe-shaped support frame 55 for fixing the glass mounting frame 54, A window formed in the frame 60 is constituted by a reinforcing frame 56 provided on the outer peripheral side of the support frame 55 and a table portion 57 formed of a horizontal plate provided so as to protrude inside the room of the support frame 55. One end of each of the ceiling opening 60 a and the bottom surface 60 b of the opening 61 is fixed to a metal anchor bolt 70 embedded in the frame 60. Normally, the sash frame 52 secures the reinforcing frame 56 and the anchor bolt 70 by welding or screwing with a bolt and nut (not shown) using a connecting member such as an L-shaped angle 71. .

[0003]

The above-mentioned skeleton 6
When the reference numeral 0 indicates a reinforced concrete structure, the anchor bolt 70 and the reinforcing bars (not shown) such as vertical bars and horizontal bars buried in the skeleton 60 are often in contact with each other. Therefore, the sash frame 52 and the skeleton 60 are electrically connected, and a part of the electromagnetic wave transmitted from the electromagnetic wave shielding layer 50 of the electromagnetic shield glass 50 to the sash frame 52 leaks to the skeleton 60 via the anchor bolt 70. This leaked electromagnetic wave is
The electromagnetic wave propagates through the inside of the building and is radiated again from a conductor such as an iron member at various places in the building as an electromagnetic wave and may leak to the outside. Conversely, when an electromagnetic wave from the outside becomes a current from the conductor and is transmitted directly to the sash frame 52 via the anchor bolt 70, the electric balance of the entire electromagnetic shield is broken, and the electromagnetic shielding performance may be impaired. was there.

SUMMARY OF THE INVENTION The present invention has been made in view of the conventional problems, and prevents electromagnetic waves from leaking from a sash frame, which is in a conductive state to an electromagnetic wave shielding layer of a window member, to a building body, thereby preventing electromagnetic waves in a window portion. The purpose is to ensure shielding.

[0005]

According to a first aspect of the present invention, there is provided an electromagnetic shielding structure for a window section, wherein a sash frame for holding an outer peripheral side of a window member having an electromagnetic wave shielding function is provided via an insulating member. The sash frame and the frame are fixed to the frame of the building to insulate the frame.

According to a second aspect of the present invention, in the electromagnetic shielding structure for a window, the sash frame is fixed to an insulating anchor bolt having one end buried in a building body directly or via a connecting member. Things.

According to a third aspect of the present invention, there is provided an electromagnetic shielding structure for a window, wherein the sash frame is attached to an anchor bolt having one end embedded in a building body through an insulating connecting member. .

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIGS. 1A and 1B are schematic diagrams schematically showing a window according to an embodiment of the present invention.
(A) is a front view, (b) is a figure which shows the opening part of the skeleton provided in order to install a window member. FIG. 2 is a longitudinal sectional view showing the electromagnetic shield structure of the window. In each of the drawings, reference numeral 1 denotes a rectangular window opening formed in a frame 2 having a constant thickness for the purpose of lighting or the like, and includes a top surface 2a and a bottom surface 2a.
b, left and right side surfaces 2c. In this example, the window opening 1 is closed by an electromagnetic shield glass 4 having an electromagnetic wave shielding layer 3 made of a highly transparent metal film adhered to the indoor side surface. The outer periphery of the electromagnetic shield glass 4 fits into a groove 5a provided on the inner periphery of a glass mounting frame 5 mounted along the inner periphery of the top surface 2a, the bottom surface 2b, and the left and right side surfaces 2c of the frame 2. Then, it is fixed by a sealing material 5b made of conductive rubber or the like filled in the glass mounting frame 5. Thus, the electromagnetic wave shielding layer 3 of the electromagnetic shielding glass 4 and the glass mounting frame 5 are electrically connected via the sealing material 5b. Reference numeral 6 denotes a sash frame which is positioned slightly indoors in the width direction of the frame 2 and is attached along the top surface 2a, the bottom surface 2b, and the left and right side surfaces 2c of the frame 2 by an insulating anchor 11 described later. The mounting frame 5
The sash frame 6 is fixed inside a rectangular pipe-shaped support frame 7 constituting the sash frame 6. Since the sash frame 6 is made of a conductive material such as stainless steel or steel formed in a frame shape, as a result, the electromagnetic shield glass 4 and the sash frame 6 are electrically connected via the glass mounting frame 5. Connected. A reinforcing frame 8 is provided on the outer peripheral side of the support frame 7, and a table 9 projecting from the support frame 7 to the indoor side is attached to the indoor side of the support frame 7. A draining frame 10 is provided below the reinforcing frame 8 provided on the bottom surface side of the glass mounting frame 5 below the sash frame 6 so as to be inclined outward. 11 is a top surface 2a, a bottom surface 2b of the frame 2,
Predetermined locations on left and right side surfaces 2c, ie, sash frame 6
The other end having a threaded portion is buried in a state in which it is electrically insulated from the frame 2 so that the head is located near the outer peripheral side of the reinforcing frame 8 when the window is attached to the window opening 1. 12 anchor bolts (hereinafter referred to as insulating anchors)
Is an L for connecting the sash frame 6 and the insulating anchor 11.
13-shaped angle, the drain frame 10 is the insulation anchor 1
Reference numeral 14 denotes a fixing member for fixing to the first member, 14 denotes an exterior member constituting an outer wall portion of the window, and 15 denotes a waterproof caulking material filled between the sash frame 6 and the exterior member 14.

FIG. 3 is a view showing a state in which an insulating anchor 11 is attached to a top surface 2a provided in the window opening 1 of the frame 2, and the other surface of the window opening 1 (bottom surface 2b, left, The same applies to the right side surface 2c). First, a hole 2K having a predetermined depth is formed at a predetermined position on the top surface 2a, and a resin insulating member 2Q having a female screw or an engagement means formed on an inner peripheral surface is inserted into the hole 2K. And fix with adhesive. After that, the screw portion 11q of the metal anchor bolt 11F is inserted into the screw portion of the insulating member 2Q to obtain the insulating anchor 11. To fix the sash frame 6 to the frame 2,
As shown in FIG. 3, the horizontal piece 12 m of the L-shaped angle 12, which is a connecting member, is brought into contact with the horizontal piece 8 m of the reinforcing frame 8 that forms the outer peripheral portion of the sash frame 6. The vertical piece 12 of the angle 12 is attached to the head 11n.
n are brought into contact with each other and screwed using bolts 16 and nuts 17, respectively. The head 11 of the insulating anchor 11
Since n is formed in the shape of a prism, the sash frame 6 is
Can be fixed securely. Thereby, the sash frame 6 and the frame 2
And is electrically insulated. The fixing member 13 for fixing the drain frame 10 to the insulating anchor 11 is also provided by the insulating anchor 1.
Since the sash frame 6 and the skeleton 2 are fixed to the skeleton 2 via 1, the sash frame 6 and the skeleton 2 can be reliably insulated. The joining between the insulating anchor 11 and the angle 12 may be performed by welding. As described above, in the present embodiment, the sash frame 6 and the frame 2 are electrically insulated by fixing the sash frame 6 to the frame 2 via the insulating anchor 11.
In addition to preventing leakage of electromagnetic waves from the sash frame 6 to the sash frame 6, leakage of electromagnetic waves from the sash frame 6 can be prevented, and the electromagnetic shielding properties of the window can be sufficiently ensured. In addition, by employing a window having the above-described electromagnetic shield structure, a shield room having high electromagnetic shielding performance can be provided.

In the above-described embodiment, the insulating anchor 11 is used. However, as shown in FIG.
Even if the letter-shaped angle 12 is made of an insulator such as a resin, the reinforcing frame 8 and the metal anchor bolt 11F are insulated, so that the sash frame 6 and the frame 2 can be electrically insulated. . The same effect can be obtained even if the bolt 16 and the nut 17 are made of an insulator. Alternatively, an insulating cap may be placed on the metal anchor bolt 11F,
The sash frame 6 may be attached to the metal anchor bolt 11F via an insulating connecting member other than the angle 12. Further, in the above example, the skeleton 2 made of reinforced concrete has been described, but the present invention is also applicable to a case where the skeleton 2 is made of steel. In the case of a steel structure, the sash frame 6 is connected to an ALC plate or a curtain wall.

[0011]

As described above, according to the first aspect of the present invention, the sash frame for holding the outer peripheral side of the window member having the electromagnetic wave shielding function is provided with the frame of the building via the insulating member. The sash frame and the frame are insulated from each other, so that it is possible to eliminate leakage of electromagnetic waves from the sash frame to the frame of the building while securing lighting, and from the frame to the sash frame. Current can be prevented, and the electromagnetic shielding properties of the window can be sufficiently ensured. In addition, by employing a window having the above-described electromagnetic shield structure, a shield room having high electromagnetic shielding performance can be provided.

According to the second aspect of the present invention, the sash frame is fixed to an insulating anchor bolt having one end embedded in a building body directly or via a connecting member. The sash frame and the frame can be reliably insulated, and leakage of electromagnetic waves from the sash frame to the frame of the building can be prevented.

According to the third aspect of the present invention, the sash frame is attached to the anchor bolt having one end embedded in the frame of the building via the insulating connecting member.
The sash frame and the frame can be reliably insulated with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a schematic view showing an outline of a window according to the present embodiment.

FIG. 2 is a view showing an electromagnetic shield structure of a window according to the present embodiment.

FIG. 3 is a view showing an insulating anchor according to the first embodiment.

FIG. 4 is a diagram showing an electromagnetic shield structure of another window according to the present invention.

FIG. 5 is a diagram showing a mounting structure of an electromagnetic shield glass.

FIG. 6 is a view showing a conventional electromagnetic shielding structure of a window.

[Explanation of symbols]

1 window opening, 2 frame, 2a top, 2b bottom,
2c side surface, 3 electromagnetic wave shielding layer, 4 electromagnetic shielding glass, 5 glass mounting frame, 5a groove portion of glass mounting frame, 5b sealing material, 6 sash frame, 7 support frame,
8 Reinforcement frame, 9 sets, 10 drain frames, 11 insulation anchors, 12 angles, 13 fixing members, 14 exterior members, 15 caulking materials, 16 bolts, 17 nuts.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Takehiko Kato 2-1, Tsukudo-cho, Shinjuku-ku, Tokyo Kumagaya Gumi Tokyo Head Office F-term (reference) 2E039 AC01 5E321 AA03 AA46 BB44 CC11 CC22 GG05 GH01 GH07

Claims (3)

[Claims] 1. An electromagnetic shield structure for a window, wherein a sash frame for holding an outer peripheral side of a window member having an electromagnetic wave shielding function is fixed to a building body via an insulating member. 2. The window part according to claim 1, wherein the sash frame is fixed to an insulating anchor bolt, one end of which is embedded in the frame of the building, directly or via a connecting member. Electromagnetic shield structure. 3. The electromagnetic shield structure for a window according to claim 1, wherein the sash frame is attached to an anchor bolt embedded at one end of the building via an insulating connecting member. .