KR102551702B1 - Sandwich panel that curved surface construction is available - Google Patents

Abstract

The present invention relates to a sandwich panel for construction, and more specifically, to provide a sandwich panel for construction capable of being constructed on a flat surface as well as on a curved surface.
To this end,
a pair of rigid plates that have an assembly structure so that the panels can be continuously assembled, and are bent when a certain pressure is applied to a certain portion of the front surface; An elastic bending filler coupled to the rear surface of the pair of rigid plates by a predetermined adhesive and formed to bend the pair of rigid plates to be bent; In order to fix the shape of the above components, they are constantly arranged with elastic bending fillers in between,
The front surface on the back of a pair of rigid plates, the arch-shaped protrusion in the arch-shaped insertion groove of the elastic bending filler, are closely assembled and formed by adhesive at the same time, and are composed of a plurality of fixed fillers with a certain strength. Of course, a sandwich panel for construction capable of curved construction is provided. In addition, a sandwich panel that is easy to install is provided.

Description

Sandwich panel that curved surface construction is available}

Usually, sandwich panels for construction,

A pair of metal plates and a core layer are filled with insulating materials, which is also called a “sandwich panel”.

Specifically, it relates to a sandwich panel for construction that can be constructed on a flat surface as well as on a simple curved surface.

also

Interior sandwich panels for normal construction,

It relates to building interior materials, in particular, to building finishing materials in the form of gypsum boards with little elasticity.

Specifically, it relates to a built-in sandwich panel for construction that can be applied to a curved surface as well as a flat surface.

In the construction sandwich panel,

A typical sandwich panel is manufactured in a flat form at a manufacturing plant and installed in a form that is fixed against a section steel installed on site. In addition, in the case of curved construction, a flat panel manufactured at a manufacturing plant is applied and reprocessed at the site. build,

in other words

After dismantling one metal plate panel, removing all or part of the insulating material of the core layer, bending and forming the one metal plate using the bending property of the metal plate, and then using the insulating material or sealing material on the core layer. After filling, it is constructed by flashing by making a bent shape with the remaining metal plate.

In addition, a panel for constructing a curved surface (Public Patent Publication No. 10-2009-0038338), which can be made in the prior art, is also described in the form of completing a panel manufactured in a semi-finished state on the site as conceived from the above construction method.

In other words, there is an inconvenient problem in the form that additional construction must be performed on the site after some of the construction forms are processed.

also

In the interior sandwich panel for construction,

Gypsum board is commonly used as a building interior material, especially as a finishing material, despite its harmfulness due to various functional factors. Of course, natural gypsum can be used, but it is not yet commonly used.

That is, since the conventional finishing material in the form of a gypsum board having little elasticity has little elasticity in curved surface construction, it is difficult to construct a curved surface.

If curved surface construction is required, some functional factors can be abandoned and a different type of finishing material, that is, with elasticity, can be selected.

A form of completing a panel manufactured in a conventional semi-finished state on site,

Completed, that is, combined and formed so that the structure has a physical property that is bent to be bent.

An object of the present invention is to provide a sandwich panel for construction capable of curved construction.

In addition, the material of the built-in sandwich panel for construction is applied,

An object of the present invention is to provide a built-in sandwich panel for construction capable of curved construction.

In the construction sandwich panel,

a pair of rigid plates that have an assembly structure so that the panels can be continuously assembled, and are bent when a certain pressure is applied to a certain portion of the front surface;

an elastic bending filler coupled to a rear surface of the pair of rigid plates by a predetermined adhesive and formed so as to bend the pair of rigid plates;

In order to fix the shape of the above structures, they are regularly arranged with elastic bending fillers interposed therebetween,

The front side of the pair of rigid plates, the arch-shaped protrusion in the arch-shaped insertion groove of the elastic bending filler, are closely assembled and formed by adhesive at the same time, and are characterized in that they are composed of a plurality of fixed fillers having a certain strength. Sandwich panel for construction that can be constructed with curved surfaces.

A form of completing a panel manufactured in a conventional semi-finished state on site,

Completed, that is, combined and formed so that the structure has a physical property that is bent to be bent.

A sandwich panel for construction capable of curved surface construction is provided.

also

The material of the built-in sandwich panel for construction is applied,

Provided is a built-in sandwich panel for construction that can be constructed on a curved surface to which the material of the built-in sandwich panel for construction is applied.

60 in Figure 1,
A longitudinal cross-sectional view of a building sandwich panel in which structures are assembled and bonded in a representative embodiment.
Figure 2 is an example of a sandwich panel for construction in which rigid plates (10 and 20 in Fig. 1) are made of metal plates, and a cross-sectional view and a front view of a core layer filler formed by assembling and combining an elastic bending filler 140 and a fixed filler 130. do.
Figure 3 is an example of a built-in sandwich panel for construction, a front view of a fixed filling material 30 and an elastic bending filling material 40 assembled and coupled, and a separated cross-sectional view of the components in the longitudinal direction.

A representative embodiment will be described in detail with reference to the drawings.

1, 50 is a longitudinal cross-sectional view of the elastic bending filler 40 and the fixed filler 30, which are assembled and bonded by an adhesive in a representative embodiment,

1, 60 is a longitudinal cross-sectional view of a building sandwich panel in which structures are assembled and coupled in a representative embodiment,
Reference numeral 70 in FIG. 1 is a longitudinal cross-sectional view of a sandwich panel for construction formed by bending.

For reference, in the detailed description, the front and rear surfaces of all components are referred to as the front surface (15 in FIG. 1) and the opposite surface to the rear surface.

In a pair of rigid plates 10 and 20 that are bent when a certain pressure is applied to a certain portion of the front surface,

As long as the condition of “bends when a certain pressure is applied” is satisfied, it can be formed from a non-metallic plate as well as a metal plate of a conventional sandwich panel for construction.
For reference, the technical characteristics of the constant pressure above are explained in the overall action function below.

The metal plate may also include a thin plate material such as tin.

In the assembly structure of “so that panels can be assembled continuously”,

Any assembly structure such as a normal roof or wall may be used. That is, it has a structure that is assembled with a male and female structure on one panel, has a structure that is assembled through a frame for assembly with a panel, has a structure that is horizontally arranged and flashed, or has a structure that is assembled with metal panels. It can be.

In addition, of course, it can be formed as an assembly structure such as a conventional interior material for building, a finishing material, or the like.

also

Of course, a typical architectural design may be applied to the surfaces of the rigid plates 10 and 20 .

That is, it may be formed in a form that includes other materials such as a painting or design or shape of paint or a deck panel.

In the elastic bending filler 40,

Both front surfaces of the elastic bending filler 40 formed in combination with the rear surfaces of the pair of rigid plates 10 and 20,

When the panel is bent, it becomes a bending area, and the front height (a in FIG. 1) can be adjusted, and the length extension of the height (a in FIG. 1) becomes an extension of the bending area.

If only the condition that it must have elasticity and be able to absorb the deformation of structures when formed by bending is met,

Of course, it can be applied among materials used as lightweight building materials as well as conventional low-density fillers of sandwich panels.

Specifically, urethane sponge, low compression styrofoam, silicone, etc. may be applied.

In addition, when the structures are coupled and formed by an adhesive, selection is possible if the conditions of the above applicable materials are satisfied by the adhesive.

In the fixed filler 30,

The front surface of the pair of rigid plates 10 and 20, the arch-shaped protrusion 31 is tightly assembled to the arch-shaped insertion groove 41 of the elastic bending filling material 40, and is formed by adhesive at the same time. .

The fixed filler 30 may be any shape such as a square, a rectangle, a circle, or a ring.

The ring shape, that is, the hollow shape may be filled with fillers of other materials than the fixed filler 30.

Also, the size and number can be adjusted.

The structure, that is, the pair of rigid plates 10 and 20 and the shape of the elastic bending filler 40 is fixed by the fixed filler 30. That is, it can be said that the shape of the panel is maintained.

Since the front surface of the elastic bending filler 40 becomes a bending part and a bending direction at the same time, it has a form in which the horizontal direction or vertical direction or the vertical and horizontal directions intersect, and within the above form, a plurality of fixed fillers 30 can be placed.

A protrusion 31 is formed on the side of the fixed filler 30 in contact with the elastic bending filler 40,

The degree of curvature of the arch of the protrusion 31 may be adjusted.
This is because the above degree of bending affects the shape of the surface of the rigid plates 10 and 20 according to the degree of bending during bending of the sandwich panel.

In the plurality of fixed fillers 30 having a certain strength,

The condition of the applicable material is that it is formed of a rigid material capable of supporting structures and absorbing expansion and contraction of the pair of rigid plates 10 and 20 in a use environment.

Of course, it can be applied to rigid materials among materials used as lightweight construction materials as well as high-density fillers of conventional sandwich panels.

In addition, when the structures are coupled and formed by an adhesive, selection is possible if the conditions of the above applicable materials are satisfied by the adhesive.

Specifically, high-density paper, wood, synthetic wood, plastic, etc. may be applied.

For certain adhesives,

All adhesive conditions used in the present invention, that is, certain adhesives,

In the case of adhesion between the same materials due to the adhesiveness of the structural material itself and in the case of absorbing contraction and expansion in the use environment, an adhesive without elasticity may be used.

However, other than the above, it is preferable to use a sealing adhesive having elasticity so as to absorb contraction and expansion of structures.

Of course, a conventional adhesive may be applied as long as it satisfies the above conditions among materials used as building materials.

In addition, when molding, even if the material itself, that is, the fixed filler 30 and the elastic bending filler 40, have adhesiveness, it can be replaced with an adhesive without a separate adhesive if the above conditions are met.

As a specific scope of application,

A pair of rigid plates (10, 20) rear side, a plurality of fixed fillers (30) and elastic bending filler (40) both front sides, the insertion groove 41 of the elastic bending filler (40) and a plurality of fixed fillers (30) It becomes the protrusion part 31.

In addition, reinforcing rigid plates (110 and 120 in FIG. 3) and surface materials (150 and 160 in FIG. 3) are included.

2 is an example of a construction sandwich panel in which rigid plates (10 and 20 in Fig. 1) are made of metal plates, and a core layer formed by assembling and combining an elastic bending filler (140 in Fig. 2) and a fixed filler (130 in Fig. 2). It is a cross-sectional view and a front view of the assembly of the filler.

A pair of rigid plates 10 and 20 may be formed of metal plates and

In the above metal plate,

A structure having an assembly structure so that the metal plate and the metal plate are continuously assembled may be formed in a male and female structure,

A corrugated shape may be formed in the longitudinal direction (132 in FIG. 2) to reinforce the strength of the metal plate portion coupled to the exposed portion of the front surface of the fixed filler 130 (131 in FIG. 2),

A plurality of bending guide grooves may be formed in the bending direction of the elastic bending filler 140 so that the bent portion of the rear portion of the metal plate coupled with the elastic bending filler 140 is constantly bent,

In a plurality of fixed fillers 130 that are regularly disposed with the elastic bendable filler 140 interposed therebetween, both sides of the longitudinal direction may be disposed as the fixed filler 130 while being disposed in the longitudinal direction.

The above male and female structures and wavy shapes are typical structures,

The plurality of bending guide grooves,
It is intended to make the thin part preferentially and uniformly bent with a difference in thickness, and can be formed even in the case of thick paper of a non-metallic plate,

It is formed entirely on the rear part of the metal plate coupled to the elastic bending filler 140.

Regarding the depth of the groove, it is preferable that the depth is formed as shallow as possible under the condition that an angle should not be formed and bent in the longitudinal direction of the groove during use environment, that is, during construction.

This is because the depth of the groove affects the strength of the rigid plates 10 and 20 .

3 is

An example of a built-in sandwich panel for construction in which a rigid plate and a fixed filler 30 are made of non-metallic materials for interior use, and a front view of the fixed filler 30 and the elastic bending filler 40 assembled and bonded by an adhesive, as well as a built-in sandwich panel for construction. It is a separate cross-sectional view of one example of the panel in the longitudinal direction. The foregoing for interior use is a finishing material partition or the like.

It differs from the representative embodiment in that the rigid plates (10 and 20 in Fig. 1) are composed of the reinforcing rigid plates (110 and 120 in Fig. 3) and the surface material (150 and 160 in Fig. 3).

In addition, the fixed filler 30 has only a difference in that non-metallic materials for interior use are applied.

The arrangement of a certain fixed filling material 30, which is constantly arranged with the elastic bending filling material 40 in between,

The front surface of the elastic bending filler 40 is formed in a mesh structure, and the rim of the fixed filler 30 may be formed in a square shape,

In a pair of rigid plates that are bent when a certain pressure is applied to a certain portion of the front side,

rigid plate,

A pair of surface materials 150 and 160 capable of being bent and a pair of reinforcing rigid plates that are bonded to the rear surface of the surface materials 150 and 160 and are broken along the curved surfaces of the surface materials 150 and 160 when a certain pressure is applied to break and bend. It can be done with (110,120).

In a certain fixed filler 30,

It goes without saying that rigid materials among materials for interior materials and finishing materials can be applied in combination.

If the rigid plate is made of a metal plate, it is possible to use high-compression styrofoam, but if it is made of a non-metal plate,

Since the reinforcing rigid plates 110 and 120 are materials that break under a certain pressure, it is preferable that they are formed of a rigid material without elasticity, which also means the above constant.

It is possible to select and apply rigid materials among materials such as boards and composite panels used as general interior materials, especially finishing materials.

In a pair of rigid plates,

Materials such as interior materials and finishing materials are used in combination to form a rigid plate that has the physical properties of a metal plate, that is, a bending property.

If the rigid plate composed of the reinforcing rigid plate (110, 120) and the surface material (150, 160) meets the condition of “bending when a certain pressure is applied”, it can be used as a general interior material, especially gypsum board, yellow clay board, fabric board, It may be formed of any material such as a composite panel.

Depending on the purpose of the built-in sandwich panel, the thickness can be adjusted from the thickness of a typical metal sheet sandwich panel to the thickness of a typical gypsum board.

From an understanding point of view,

A representative embodiment of an example of a built-in sandwich panel in which the rigid plate is made of non-metal.

Ordinary gypsum for manufacturing gypsum board can be used as a material for the reinforcing rigid plates 110 and 120 and paper can be used as a material for the surface materials 150 and 160.

Gypsum for gypsum board production may be applied to the rigid plates, that is, the reinforcing rigid plates 110 and 120, and the surface materials 150 and 160 may be made of paper.

In the case where gypsum for producing gypsum board becomes the reinforcing rigid plate 110 or 120 and paper is formed as the surface material 150 or 160,

The fixing filler 30 may be applied with gypsum for manufacturing gypsum board, and the elastic bending filler may be applied with silicone or the like.

For your reference, the paper should not be torn as the plaster is bent and broken.

In other words, paper should be selectively applied with reference to the thickness and strength of gypsum.

Of course, materials such as ordinary loess, unglazed pottery base, and the like can be applied instead of the gypsum for manufacturing gypsum board by processing.

In addition, it goes without saying that ordinary paper can be applied instead of ordinary fabrics having a high flexural modulus.

In the pair of reinforcing rigid plates 110 and 120,

A plurality of serrated protruding pieces (145, 115 in FIG. 3) may be formed by engaging with each other on both front surfaces of the elastic bend filler 40 and rear surfaces of the pair of reinforcing rigid plates 110 and 120 so as to be uniformly damaged.

It is formed by protruding from both front surfaces of the elastic bending filler 40 and the rear surface of the pair of reinforcing rigid plates 110 and 120, and has a difference in thickness so that the thin part is preferentially and uniformly broken, and several protruding pieces may be formed. . Overall, it is serrated.

It may be formed below the horizontal surface of both front surfaces of the elastic bending filler 40, but it is preferable to protrude above the horizontal surface.

also

When bent, in order to prevent the breakaway pair of reinforcing rigid plates 110 and 120 being bent smoothly and at the same time,

A mesh network may be further included and formed in the center of the front surface and thickness of the pair of reinforcing rigid plates 110 and 120 .

The material of the mesh net may be fabric, plastic, etc., and the mesh net may be integrally embossed on paper of the surface materials 150 and 160 .

The material of the mesh network is preferably selected so that the reinforcing rigid plates 110 and 120 are not damaged due to contraction and expansion in the use environment.

Regarding the structure of the mesh network, it goes without saying that a conventional mesh network structure can be applied.

As for the overall working function.

A pair of rigid plates 10 and 20 having physical properties that are bent

Consisting of fixed fillers 30 of the core layer that are regularly arranged with the elastic bending fillers 40 of the core layer interposed therebetween and support the structures, which are formed so that the pair of rigid plates can be bent,

Complete bending of the surface cannot be achieved only with the arch-shaped protrusion 31 of the fixed filler 30,

Smooth bending of the surfaces of the pair of rigid plates 10 and 20 by the elastic body constituting the insertion groove 41 of the elastic bending filler 40 surrounding the arch-shaped protrusion 31 of the fixed filler 30 this can be done

On a certain portion of the front surface of one of the pair of rigid plates 10 and 20,

When a constant pressure is applied,

In the height region of the front part of the opposite core layer elastic bending filler 40 (Fig. 1 a), by constant pressure and elastic force,

The rigid plate 20 on one side reduces the thickness (c in Fig. 1) and the height (a in Fig. 1) of the core layer, and at the same time is bent while drawing an arch toward the thickness, and at the same time, the rigid plate 10 on the side applying pressure also has a thickness It is bent in the same direction from the outside (b in Fig. 1).

The shape of the elastic bending filling material 40 is fixed and deformed into a bent form.

Assuming that the constant pressure is filled with the elastic bending filler 40 in the pair of rigid plates 10 and 20 and the entire core layer,

When pressure is applied, it becomes a bending pressure, and if it is as strong as a normal metal plate, it is possible to tighten the ball nut after placing the panel on a section or wall and bending it with a person's hand during construction at the site. However, in special cases, the device It is also possible to fasten the ball nut after bending by using.

The interior sandwich panel in which the rigid plates are composed of the surface materials 150 and 160 and the reinforcing rigid plates 110 and 120 is the same, but has the following differences.

When a certain pressure is applied to the reinforcing rigid plates 110 and 120,

It is relocated in a broken state by being constantly bent along the curved surfaces of the surface members 150 and 160.

It can be said that the method of use is constructed in the usual way.

In the case where the rigid plates 10 and 20 are metal plates,

Planar construction is performed in the usual way.

For curved surface construction, jointing can be done after bringing the panels together to the bent shape steel and pushing them with your hands so that they are bent.

In addition, if the strength of the panel is so strong that it cannot be pushed and bent by hand, it is possible to use a conventional metal plate bending machine to bend it and then assemble it to the shape steel.

In the case where the rigid plate is made of the non-metal plate (110, 120, 150, 160),

In particular, in interior materials and finishing materials,

Planar construction is performed in the usual way.

In the curved surface construction, after painting an adhesive on the inner wall of a building having a curved shape, such as plywood, it can be bonded while fixing the shape by pushing it by hand.

In addition, after fixing the shape by pushing the panel by hand on the inner wall of a building having a curved shape, it may be fixed with a piece or the like.

As for the manufacturing method.

Manufacturing is done by conventional methods, but of course, various manufacturing methods are presented by classifying them into metals and non-metals below.

For reference, it is appropriate to interpret the molding mold applied below as a molding mold that is judged to be the most suitable among molding molds by conventional metal or non-metal molding methods, rather than one type of molding mold.

In the case where the rigid plates 10 and 20 are made of metal plates,

1. After preparing the elastic bending filler 40 and the fixed filler 30 of the core layer separately, assembling the structures and bonding them together with an adhesive - the filler of the assembled and bonded core layer, or Again, a method of bonding and forming a pair of rigid plates 10 and 20 prepared for molding with an adhesive.

Of course, the adhesive is included in the adhesive even if it can be a material of the elastic bending filler 40 and the fixed filler 30, especially in the case of a urethane adhesive.

2. After separately preparing the elastic bending filler 40 or fixing filler 30 of the core layer - Temporarily fixing the above separately prepared filler in the molding frame, then the other one in the empty space in the molding frame After completing the filler of the core layer by injecting or spraying the filler material of - a method of bonding and forming the completed filler with a pair of rigid plates (10, 20) and an adhesive.

In the case where the rigid plate is made of a non-metallic plate,

1. After separately molding the elastic bending filler 40 and the fixing filler 30 of the core layer, assembling and bonding with an adhesive at the same time - A pair of auxiliary rigid plates 110 and 120 prepared for separately molded and assembled as described above A method of bonding the filler of the bonded core layer with an adhesive.

In addition, the bond formation between the reinforcing rigid plates 110 and 120 and the surface materials 150 and 160 is formed by the adhesive component of the reinforcing rigid plates 110 and 120 during molding or by bonding after forming the reinforcing rigid plates 110 and 120 by adhesives. can form

2. After separately molding the elastic bending filler 40 or the fixed filler 30 of the core layer - After temporarily fixing the above separately molded filler in the molding frame, the other one in the empty space in the molding frame After completing the filler of the core layer by injecting or spraying the filler material - a method of combining the completed filler with a pair of auxiliary rigid plates 110 and 120 separately molded and prepared with an adhesive.

Or after completing the filler of the core layer - After completing the reinforcing rigid plate 110 on one side by injecting or spraying the material of the reinforcing rigid plates 110 and 120 on one side of the completed filler structure using a molding frame - the completed The auxiliary rigid plate 120 on the other side may be completed by injecting or spraying the material of the reinforcing rigid plates 110 and 120 on the other side of the filler structure.

The reinforcing rigid plates 110 and 120 and the surface materials 150 and 160 may be coupled in the same manner as in 1 above.

10,20; a pair of rigid plates 30; fixed filler
40; Elastic bending filler 110,120; A pair of reinforcing rigid plates
150,160; a pair of surface materials 31; arched protrusion
41; arched insertion grooves 115,145; overhang

Claims (7)

In the construction sandwich panel,
A pair of rigid plates (10 and 20 in Fig. 1) (150 and 160 in Fig. 3) ( 110 and 120 in FIG. 3);
The pair of rigid plates (10, 20 in Fig. 1) (150, 160 in Fig. 3) (110, 120 in Fig. 3) are bonded to the rear surface by a certain adhesive, and the pair of rigid plates (10, 20 in Fig. 1) ) (150, 160 in FIG. 3) (110, 120 in FIG. 3) formed to be bent to be bent elastic bending filler (140 in FIG. 2) (40 in FIG. 3);
above
A pair of rigid plates (10, 20 in Fig. 1) (150, 160 in Fig. 3) (110, 120 in Fig. 3)
The elastic bending filler (140 in Fig. 2) (40 in Fig. 3) is constantly arranged so that the shape of the elastic bending filler (140 in Fig. 2) (40 in Fig. 3) can be fixed,
A pair of rigid plates (10, 20 in Fig. 1) (150, 160 in Fig. 3) (110, 120 in Fig. 3) on the back side, an elastic bending filler (140 in Fig. 2) (40 in Fig. 3) arched insertion groove The arch-shaped protrusion is assembled in close contact and formed by bonding at the same time with an adhesive, and it is possible to construct a curved surface, which is characterized by being composed of a plurality of fixed fillers (130 in Fig. 2) (30 in Fig. 3) having a certain strength. Sandwich panels for construction. According to claim 1,
A pair of rigid plates (10 and 20 in Fig. 1) are formed of metal plates,
In the above metal plate,
The structure having an assembly structure so that the metal plate and the metal plate are continuously assembled is a male and female structure,
A corrugated shape is formed in the longitudinal direction (132 in FIG. 2) in order to reinforce the strength of the metal plate portion formed in combination with the exposed portion (131 in FIG. 2) of the front surface of the fixed filler (130 in FIG. 2),
A plurality of bending guide grooves are formed in the bending direction of the elastic bending filler (140 in FIG. 2) so that the bent portion of the rear portion of the metal plate formed in conjunction with the elastic bending filler (140 in FIG. 2) is uniformly bent,
In a plurality of fixed fillers (130 in Fig. 2) that are constantly disposed with the elastic bending filler (140 in Fig. 2) interposed therebetween,
A construction sandwich panel capable of curved construction, characterized in that it is arranged in the longitudinal direction and at the same time, fixed fillers (130 in Fig. 2) are arranged on both sides in the longitudinal direction. According to claim 1,
When a certain pressure is applied to a certain part of the front, a pair of rigid plates that are bent
A pair of surface materials (150 and 160 in FIG. 3) capable of being bent and formed coupled to the rear surface of the surface materials (150 and 160) and damaged along the curved surface of the surface materials (150 and 160) when a certain pressure is applied A pair of reinforcing stiffness that breaks to be bent It consists of a plate (110, 120 in Fig. 3),
In the elastic bending filler,
The front surface of the elastic bending filler (40 in FIG. 3) is formed as a mesh network structure as a whole,
In a fixed filling material (30 in Fig. 3) that is constantly disposed with an elastic bending filling material interposed therebetween,
Built-in sandwich panel for construction capable of curved construction, characterized in that the border of the fixed filler (30 in Fig. 3) is formed in a square shape. According to claim 3,
In a pair of reinforcing rigid plates (110 and 120 in Fig. 3),
It is possible to construct a curved surface, characterized in that a plurality of sawtooth protruding pieces (145, 115 in FIG. 3) are formed by interlocking with each other on both front surfaces of the elastic bending filler 40 and the rear surface of the pair of reinforcing rigid plates 110 and 120 so as to be uniformly damaged. Built-in sandwich panels for construction. According to claim 4,
When bent, in order to smoothly bend the broken pair of reinforcing rigid plates (110 and 120 in Fig. 3) and to prevent separation,
A built-in sandwich panel for construction capable of curved construction, characterized in that the mesh network is further included in the center of the front and the thickness of the pair of reinforcing rigid plates (110, 120). According to claim 5,
A fixed filler (30) and reinforcing rigid plate (110, 120 in Fig. 3) are formed of gypsum for gypsum board production, and the surface material (150, 160 in Fig. 3) is formed of paper. panel. in paragraph 1
Sandwich panel for construction capable of curved surface construction, characterized in that the fixed filler is made in the form of a disk

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