JPH07918B2 - Electromagnetic wave shield construction method - Google Patents

Description

The present invention relates to an electromagnetic wave shield construction method applied to an electromagnetically shielded room, a case that shields electromagnetic waves, and the like.

(Prior Art) In the electromagnetic wave shield construction method, the performance greatly depends on the structure of the connecting portion of the conductive material, i) whether the connecting portion of the conductive material is pressed firmly and firmly, or ii) welding or soldering is performed. , Iii) using conductive caulking or conductive tape, or iv) bending and shaping the connection part of the conductive material to form the path of the radio wave like a maze.

As a method of the above iv), the present inventors have proposed to Japanese Patent Application No. 63-265.
In No. 45, a metal foil is layered on a base sheet, and a shield sheet that is adhered to the base sheet except for the outer peripheral edge of the foil is laid over the interior surface, and the outer peripheral edge of the metal foil on the adjacent shield sheet The loose piece is folded and folded between the base sheet and the base sheet, and both side edges of the lower metal foil piece are inserted between the respective side edges of the adjacent shield sheets. While superimposing a wide upper metal foil piece on one piece, by embedding the folded portion of the metal foil of the adjacent shield sheet on both side edges of the upper metal foil piece, as a base sheet of each shield sheet We proposed an electromagnetic wave shield construction method that features continuous stitching.

(Problems to be solved by the invention) In the electromagnetic shielding method, since the metal foil and the metal foil and the base sheet are bound by the stapler binding device via the fastener, the number of continuous binding portions by the fastener is reduced. However, there was a problem in that the pressure bonding of the shield foil was not sufficient.

The present invention has been proposed in view of the problems of the prior art, the purpose of the construction is simple, quick and reliable, the labor saving of the electromagnetic shield panel assembly, The point is to provide an electromagnetic wave shield construction method that ensures conductivity.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the electromagnetic wave shield construction method according to the present invention is provided with a groove groove on the surface, and a peripheral overlap margin free piece exceeds the groove groove. The overlap margin free piece in the interior base material having the electromagnetic shield flakes attached so as to extend, and the peripheral overlap margin free piece in the electromagnetic shield flakes layered on the adjacent surface are polymerized, and then outside of the overlapped portion. A more elastic joint bar is fitted in the groove of the interior base material, and the overlapping margin free pieces around each adjacent electromagnetic shield thin piece are crimped to the inner peripheral wall of the groove.

According to a second aspect of the present invention, an intermediate member having a groove groove on the surface is disposed on the interior base surface, and the overlapped loose pieces around the interior base surface are adjacent to each other on both sides of the intermediate member. An electromagnetic shield thin piece is layered so as to extend beyond the groove groove of the member, the overlapping margin free pieces of each of the above peripheral parts are polymerized, and then an elastic joint bar of the intermediate member is attached from the outside of each free piece overlapping part. It is fitted in the groove groove, and the overlapping margin free pieces around each adjacent electromagnetic shield thin piece are pressure-bonded to the inner peripheral wall of the groove groove of the intermediate member.

In the invention of claim 3, a joint material is applied as the intermediate member.

According to the invention of claim 4, by winding and stopping the overlap margin free piece around the electromagnetic shield member of each interior base material,
The respective members are joined more closely.

As the electromagnetic shield member, a foil-like material such as a metal foil, a metal vapor deposition film, a metal fiber woven fabric, or a non-woven fabric (hereinafter referred to as an electromagnetic shield thin piece) is used.

(Operation) According to the present invention, as described above, the inner groove material is provided on the surface and the peripheral overlapping free piece is layered so as to extend beyond the concave groove. The overlap margin free piece of the electromagnetic shield thin piece and the peripheral overlap margin free piece in the electromagnetic shield thin piece layered on the adjacent surface are polymerized, and the elastic joint bar is placed in the groove groove from the outside of the combined portion. By inserting, the peripheral overlapping margin free pieces of the adjacent electromagnetic shield thin pieces are tightly overlapped and pressure-bonded to the groove groove with one touch.

As a result, a space extending from the front surface to the back surface of the recessed groove in the recessed groove portion is formed in a labyrinth shape, and the electromagnetic shield thin pieces are reliably connected without losing conductivity.

Further, in the present invention, the groove is provided on the surface of an intermediate member such as a joint material arranged on the interior base surface, and the overlapped margin of the electromagnetic shield thin layer layered on the interior base surface is overlapped. The joint bar is fitted into the groove of the intermediate member from the outside, and the loose strips of the overlapping portions are tightly overlapped and pressure-bonded to the groove of the groove with one touch.

(Examples) The present invention will be described below with reference to illustrated examples.

In FIGS. 1 to 3, (A) is an interior base material for precast concrete walls, floors, ceilings, etc., and one surface of which has a concave section with an arbitrary cross-section according to the size of the shield material considering the polymerized material. The groove (1) is provided so that the electromagnetic shield thin piece (2) has an inner base material such that the peripheral overlapping free piece (2a) of the thin piece (2) extends beyond the groove groove (1). Layered on the interior ground surface of the material (A).

On the other surface, an electromagnetic shield thin piece (3) is layered so that the overlap margin free piece (3a) around the thin piece extends beyond the concave groove (1).

Then, the overlapping margin free pieces (2a) and (3a) of the respective electromagnetic shield thin pieces (2) and (3) are polymerized (see FIG. 1), and the same two pieces (2
a) Wrap the overlapped portion of (3a) and stop it (see Fig. 2).
An elastic joint bar (4) made of hard rubber or the like is fitted into the groove in the direction of the arrow from the outside of the portion.

The joint bar (4) has the same diameter as the groove (1) or a slightly larger diameter.

By thus fitting the joint bar (4) into the groove (1) in the interior base material (A), the electromagnetic shield thin pieces (2) (3) layered on the interior base material (A). The overlapped portions of the overlapping margin free pieces (2a) and (3a) around each of the above are crimped to the inner wall surface of the groove (1), so that there is no gap and conduction is obtained. (See FIG. 3) FIGS. 4 to 6 show another embodiment of the present invention (C).
Is an interior base material in which the electromagnetic shield thin pieces are layered on the surface so that the overlapping margin free pieces (5a) and (6a) extend beyond the overlapped portion, and the grooved groove is formed on the surface of the interior member surface. (1) is provided, the joint material (E) that constitutes the intermediate member is provided, and the overlapping strip free pieces (5a) and (6a) are polymerized in the groove groove (1), and As shown in FIG. 4, the overlapping strip free pieces (5a) and (6a) were wound and fastened, and then the joint rod (4) was attached to the joint material (E) as in the above-mentioned embodiment.
By fitting the above-mentioned overlapping margin free pieces (5a) and (6a) on the inner wall surface of the groove groove (1) by fitting into the groove groove (1), the conduction without gaps is obtained. (Refer to FIG. 6) (Effect of the Invention) According to the present invention, as described above, a groove groove is provided on the surface of the interior member, and the overlapping piece free piece is formed on the surface of the interior member so as to extend beyond the groove groove. Attaching an electromagnetic shield thin piece, superimposing a peripheral overlapping free piece in the electromagnetic shield thin piece layered on the surface of an adjacent interior member, and fitting an elastic joint bar from the outside into the groove groove of the interior base material Thus, the overlapped loose pieces of the electromagnetic shield thin piece are pressure-bonded to the inner peripheral wall of the groove in a state of being superposed and pressure-contacted, and thus both the overlapped loose pieces are pressure-contacted and joined to each other to obtain a gapless conduction.

Further, according to the present invention, the overlapping margin free pieces of the electromagnetic shield thin pieces of both the interior base materials can be joined by a one-touch operation of simply fitting an elastic joint bar in the groove provided in the interior base material. , It is possible to clear the assembly error of the joint width due to the attachment of the electromagnetic shield material.

Further, according to the present invention, the construction is performed easily and surely, special skill workers such as soldering work are not required, and the construction period can be shortened and the construction cost can be reduced.

Further, since the joint bar forms a parting edge, the finishing material can be easily attached.

Furthermore, according to the present invention, since the airtightness of the electromagnetic shield thin piece joining portion of the interior base material is maintained, the present invention can be applied to a clean room.

According to a second aspect of the present invention, the electromagnetic shield thin piece is provided with an intermediate member having a groove groove on an interior base surface layered so that a peripheral overlap free piece protrudes to the outside of the groove groove. By fitting an elastic joint bar into the groove of the intermediate member from the outside of the overlapped portion of the thin piece, the electromagnetic shield thin piece can be pressure-contacted and joined with one touch, and conduction without gaps can be obtained. To do so.

The invention of claim 3 can simplify the structure by utilizing a joint material interposed between the adjacent interior base materials as the intermediate member.

According to a fourth aspect of the present invention, the overlapping margin free piece of the joint portion of the electromagnetic shield thin piece is wound and locked to tightly join the both shield members.

According to a fifth aspect of the present invention, a metal foil, a metal vapor deposition film, a metal fiber woven fabric or a non-woven fabric is used as the electromagnetic shield thin piece, and the electromagnetic wave shield construction method is performed with a simple and low-cost material.

[Brief description of drawings]

1 to 3 are cross-sectional plan views showing the steps of one embodiment of the electromagnetic wave shield construction method according to the present invention, and FIGS. 4 to 6 are cross-sectional plan views showing the steps of another embodiment of the present invention. is there. (A) (C) …… Interior base material, (E) …… Joint material,
(1) ...... Recessed groove, (2) (3) (5) (6) ...... Electromagnetic shield thin piece, (2a) (3a) (5a) (6a) ...... Overlap margin free piece, (4) ... … Elastic joint bars.

Claims (5)

[Claims] 1. An internal base material having a grooved groove formed on the surface thereof, and an electromagnetic shield thin piece being layered so that the peripheral overlapped free piece extends beyond the grooved groove. , Superimposing the overlapping margin free piece in the electromagnetic shield thin piece layered on the adjacent surface, and then inserting an elastic joint bar from the outside of the overlapping part into the groove groove of the interior base material, and adjoining each other. An electromagnetic wave shield construction method characterized in that the overlapping margin free pieces around each of the electromagnetic shield thin pieces are pressure-bonded to the inner peripheral wall of the groove. 2. An intermediate member having a groove on its surface is arranged on an interior ground surface, and a peripheral overlap free piece is formed on the interior ground surface adjacent to both sides of the intermediate member. The electromagnetic shield thin pieces are layered so as to extend beyond the groove of the groove, the overlapping margin free pieces are superposed on each of the surroundings, and then the elastic joint bar is attached to the concave of the intermediate member from the outside of each free piece superposition section. The electromagnetic wave shield construction method according to claim 1, which is fitted in the groove and presses the overlapping margin free piece around each adjacent electromagnetic shield thin piece to the inner peripheral wall of the groove groove of the intermediate member. 3. The intermediate member is composed of a joint material interposed between overlapping portions of adjacent electromagnetic shield thin pieces.
The electromagnetic wave shield construction method described. 4. The electromagnetic wave shield construction method according to claim 1, wherein the overlap margin free pieces around each of the adjacent electromagnetic shield thin pieces are prevented from being wound. 5. The electromagnetic wave shield construction method according to claim 1, wherein the electromagnetic shield thin piece is made of a foil-shaped electromagnetic shield material such as a metal foil, a metal vapor deposition film, a metal fiber woven fabric or a non-woven fabric.