JP4530303B1 - Metal laminated panels - Google Patents

Abstract

The present invention provides a metal laminated panel having impact resistance against a flying object with a sharp impact surface, and further has a crime prevention property in which a hole having a size that allows a person to pass through cannot be formed in a short time. I will provide a.
A surface material of a metal plate and a predetermined strength of the same shape as the surface material selected from the group consisting of polycarbonate foam, rigid urethane foam, phenol resin foam and polystyrene foam placed on the surface material. And a cloth having a predetermined mass inserted between the surface material and the foamed plate material, and the surface material, the cloth and the foamed plate material are opposed to each other at their opposite edge portions. The configuration is fixed.
[Selection] Figure 1

Description

  The present invention relates to a laminated panel using a metal plate as a surface material, and more particularly to a metal laminated panel having impact resistance and crime prevention.

Damage caused by typhoons and tornadoes causes not only primary disasters such as the buildings themselves collapsing due to strong winds and gusts, but also roofing materials such as tiles and fragments of buildings collide with other structures, causing secondary disasters. Sometimes. In order to prevent or mitigate secondary disasters caused by such strong winds and gusts, it is important to protect the buildings against flying objects. As one means for that, the exterior materials and the fittings facing the outside must be protected against flying objects. It is conceivable to use a panel with impact resistance.
On the other hand, when a panel is used as an exterior material or joinery, there is a problem in crime prevention if a hole can be easily drilled with a drill or the like.

Examples of the panel excellent in impact resistance include those disclosed in Patent Document 1 and Patent Document 2.
The panel disclosed in Patent Document 1 relates to the name of the invention “high impact strength elastic mixed fiber metal laminate”, and “the first (2) and second (2) layers are located between the first and second outer surface layers. If there are dissipative elements (1) located between the first (4) and second (4) outer face layers (2), the first and second layers, at least two externally active loads that are randomly directed When added to the side and the polymer matrix between (2) and (4), the dissipative element dissipates energy and simultaneously redirects the load towards the longitudinal axis (tensile) of the first and second layers " The panel disclosed in Patent Document 2 relates to the name of the invention “core material for truck cargo compartment panel”, “the core material of the truck cargo compartment panel having light weight and sufficient impact resistance, and the core material. `` Providing used truck cargo compartment panel and truck cargo compartment door '', and as a means for solving the problem, the core material of the truck cargo compartment panel is a hollow frustum-like shape with a thermoplastic resin sheet opening on the bottom side. The structure includes at least one set of base materials that are heat-sealed in a state in which the protrusion tips of the hollow protrusion sheet with the protrusions regularly protruding are in contact with each other.

Moreover, as a panel excellent in crime prevention, there exists a thing disclosed by patent document 3, for example.
This patent document 3 is a patent application filed by the applicant of the present application and relates to the name “flex panel” of the invention. The object is to provide a “flexible resin-made flex panel”. As the structure, the one side surface material made of resin and the other side surface material are fixed to each other across the upper horizontal frame material and the resin lower horizontal frame material, and a heat insulating material and a metal net are provided in the inside. Yes. And, "This is preferable for crime prevention because the metal mesh cannot be cut with a blade in a short time, and a hole having a size that allows people to pass through cannot be formed in a short time."

Special table 2007-517687 JP 2009-61973 A JP 2000-337044 A

By the way, about the panel disclosed by patent document 1 or patent document 2, the impact resistance performance is verified by dropping a steel ball from a predetermined height on a horizontally placed panel. In other words, for these panels, the impact resistance against a flying object having a spherical surface with a predetermined diameter has been confirmed, but the flying object is not necessarily a spherical surface or a flat surface, but has a sharp point. In many cases, impact resistance in such cases has not been confirmed.
In addition, the panel disclosed in Patent Document 3 also has a paragraph number [0029], “According to the invention according to claim 1, when an impact force is applied by an external force, the panel is deformed to absorb and reduce the impact force. As described in “A flex panel that restores its original shape when it stops working”, the impact resistance against flying objects with a sharp impact surface has not been confirmed.

  Thus, the present invention provides a laminated panel that has impact resistance against a flying object with a sharp impact surface, uses a metal plate as a surface material, and has a hole that is large enough for a person to pass through in a short time. An object of the present invention is to provide a metal laminated panel having crime prevention that cannot be formed.

As a result of intensive research, the present inventor said that the impact resistance against flying objects with a sharp impact surface is increased by superposing a predetermined resin foam plate on a metal plate such as an aluminum plate or a steel plate. Obtained knowledge. The present invention is based on this finding.
That is, in order to solve the above-mentioned problem, a metal laminated panel according to claim 1 of the present application includes a surface material of a metal plate, and a polycarbonate foam, a rigid urethane foam, a phenol resin foam, and a polystyrene foam placed on the surface material. The surface material selected from the group consisting of foam plate material having the same shape, and the surface material and the foamed plate material are fixed to each other only at the opposite edges, the surface material and the foamed plate material It is characterized in that the interlayer displacement is not constrained without being in close contact .
The metal laminate panel according to the claims 2, in a metal laminate panel according to claim 1, wherein the strength of the foam sheet material compressive strength 18N / cm ² or more, flexural strength of 45N / cm ² or more It is characterized by that.
And the metal laminated panel which concerns on this-application Claim 3 is a metal laminated panel of Claim 1 or Claim 2, Comprising: The said foamed board material is a polycarbonate foam, It is characterized by the above-mentioned.
Furthermore, a metal laminate panel according to claim 4 of the present application is the metal laminate panel according to any one of claims 1 to 3, wherein the surface material is an aluminum plate or a steel plate.
Note that “aluminum” includes alloys containing aluminum as a main component, and “steel” includes iron itself.
Moreover, the metal laminated panel according to claim 5 of the present application is the metal laminated panel according to claim 4, wherein the surface material of the aluminum plate has a thickness of 0.8 mm or more, and the surface material of the steel plate is thick. Is 0.6 mm or more.
And the metal laminated panel which concerns on this-application Claim 6 is a metal laminated panel in any one of Claim 1 thru | or 5, Comprising: Between this surface material and the said foam board material, this surface material and this It is characterized in that a cloth that does not restrain the displacement between layers relative to the foamed plate material is inserted.
Furthermore, the metal laminated panel which concerns on Claim 7 of this application is a metal laminated panel of Claim 6, Comprising: The mass of the said cloth is 200 g / m < ² > or more, It is characterized by the above-mentioned.
A metal laminate panel according to claim 8 of the present application is the metal laminate panel according to any one of claims 1 to 7, wherein the metal laminate panel is provided with a back material made of the same metal plate as the surface material. It is characterized by that.
And the metal laminated panel which concerns on this-application Claim 9 is a metal laminated panel in any one of Claim 1 thru | or 8, Comprising: The said surface material, the said foamed board material, and the said back surface material, or the said surface material In addition, a metal frame of the same metal as the surface material is attached to an edge portion where the cloth, the foamed plate material, and the back surface material are fixed to each other, and the foamed plate material, or the foamed plate material and the cloth are The surface material and the back material are sandwiched by a metal frame, and are fixed to the foamed plate material or the foamed plate material and the cloth material via the metal frame.

By the above solution, the present invention has the following effects.
(1) In the present invention, a surface material of a metal plate and a foamed plate material selected from the group consisting of polycarbonate foam, rigid urethane foam, phenolic resin foam and polystyrene foam are laminated. The opposing edge portions are only fixed to each other, and the mutual interlayer displacement is free and unconstrained. For this reason, even if a projectile with a sharp impact surface collides with the surface material, the impact is not directly transmitted to the foamed plate material, and the projectile does not penetrate the foamed plate material.
In particular, the foamed plate material is a polycarbonate foam having a compressive strength of 18 N / cm ² or more and a bending strength of 25 N / cm ² or more, and the surface material is an aluminum plate having a thickness of 0.8 mm or more, or a thickness of 0.6 mm. In the case of the above steel plate, the impact resistance against flying objects is further increased.
Further, since the surface material and the foamed plate material are not bonded, for example, when the surface material is damaged, only the surface material can be removed and replaced.
(2) Since the weather resistance is excellent when the surface material is an aluminum plate, maintenance is easy, and when it is a steel plate, it is excellent in paintability. By applying plating having weather resistance to the two, both become excellent panels as exterior materials.
(3) When a cloth is inserted between the surface material and the foamed plate material, the inter-layer displacement between the surface material and the foamed plate material is free and unconstrained. When trying to open, cloth gets entangled with the blade of the drill and it is not easy to make a hole in the panel. In particular, when the cloth is a cloth having a mass of 200 g / m ² or more, the entanglement effect is further increased, and the difficulty of drilling is increased.
(4) When the foamed plate material, or the foamed plate material and the cloth are sandwiched by the metal frame, and the front surface material and the back surface material are fixed to the foamed plate material or the foamed plate material and the cloth material via the metal frame. Since the foam plate material, the front surface material, and the back surface material can take a predetermined clearance, the swelling of the central portion of the foam plate material by sandwiching does not appear directly as the swelling of the surface material and the back surface material. . In addition, by using a metal laminated panel with a backside material in a vertical or horizontal direction via a metal frame, it is used as a component of an overdoor that is attached to an opening of a building such as a warehouse, garage, or factory. Or it can use for the exterior material, outer wall, etc. of a building.
When the shape of the metal laminated panel is rectangular, the frame member may be attached to the upper and lower sides or the left and right sides facing each other, or may be attached to all four sides of the panel.

It is a perspective view of the overdoor which uses a metal lamination panel. It is a schematic perspective view of a metal laminated panel. It is a longitudinal cross-sectional view of a metal laminated panel. It is the photograph of the flying objects a and b used for the impact resistance confirmation test. It is a photograph of the surface of the test body A which penetrated the surface material by the flying object a after an impact resistance confirmation test. It is the photograph of the back surface of the test body B which penetrated the panel by the flying object a after an impact resistance confirmation test. It is a photograph of the depression trace of the surface material of the test body A by the flying object b after an impact resistance confirmation test. It is the photograph of the surface of the test body B which penetrated the surface material by the flying object b after an impact resistance confirmation test. It is the photograph of the test body C after the drilling difficulty confirmation test with a drill.

  An embodiment of a metal laminate panel according to the present invention will be described with reference to FIGS. 1 to 3, reference numeral 1 denotes an overdoor using the metal laminated panel according to the embodiment, reference numeral 10 denotes a metal laminated panel according to the embodiment, reference numeral 11 denotes a surface material, reference numeral 13 denotes a back surface material, and reference numeral 15. Is a foam plate material, 17 is cloth, 19a is a metal frame upper frame, 19b is a metal frame lower frame, 21 is a side frame, 23 is a connecting frame, 25 is an end hinge, 27 Is a guide rail.

[Configuration and operation of embodiment]
The metal laminate panel 10 includes, in order from the front surface side, a front surface material 11, a cloth 17, a foamed plate material 15, a back surface material 13, and an upper frame 19a and a lower frame 19b attached to the upper and lower sides of these flat plate-shaped components. , And a pair of side frames 21 and 21 attached to the left and right sides, and a connecting frame 23 spanned between intermediate portions of the upper frame 19a and the lower frame 19b. The over door 1 is configured to be stacked in the vertical direction by fitting the upper frame 19a and the lower frame 19b of each of the plurality of metal laminated panels 10, 10,. And the fitting part of the lower frame 19b is bendable.

  Both the front material 11 and the back material 13 are aluminum plates, and an aluminum plate having a thickness of 0.8 mm is used for the front material 11 and an aluminum plate having a thickness of 0.6 mm is used for the back material 13. . The upper frame 19a, the lower frame 19b, the pair of side frames 21, 21 and the connecting frame 23 are all made of extruded aluminum.

  The cross section of the upper frame 19a has a substantially H shape, and the foamed plate material 15 and the cloth 17 are sandwiched by a U-shaped sandwiched portion located in the lower portion of the H shape and opened downward, and the side surface of the H shape. The surface material 11 is fitted by a fitting piece whose lower part extending along (surface side: left side in FIG. 3) is opened. Further, from the H-shaped side surface of the upper frame 19a on the side opposite to the fitting piece (the back side: the right side in FIG. 3), a flat plate-like rib is extended in the horizontal direction, and the horizontal direction of the upper frame 19a is extended. It plays a role of increasing bending rigidity. The upper U-shaped portion of the upper frame 19a located at the upper portion of the H shape is opened and fitted into the lower portion of the lower frame 19b having a substantially H shape, which will be described later. It has become.

  The cross section of the lower frame 19b has a substantially H shape, and the foamed plate material 15 and the cloth 17 are sandwiched by a U-shaped sandwiching portion located at the top of the H shape. The surface material 11 is fitted by a fitting piece having an open upper portion extending along the left side in FIG. And the U-shaped part located in the lower part of the H shape of the lower frame 19b is inserted into the U-shaped part located in the upper part of the H shape of the upper frame 19a as described above. It is like that.

  The upper and lower sides of the surface material 11 are fixed by being fitted by the fitting pieces of the upper frame 19a and the lower frame 19b, but the upper and lower sides of the back material 13 are the side surfaces (the back side) of the upper frame 19a and the lower frame 19b. : Right side in FIG. And the left and right sides of the laminated material composed of the surface material 11, the cloth 17, the foamed plate material 15 and the back surface material 13 are sandwiched by a pair of side frames 21 and 21 having a U-shaped cross section, and an upper frame 19a and a lower frame A connecting frame 23 having a U-shaped cross section is bridged over an intermediate portion on the back side of 19b.

The foam plate 15 is made of polycarbonate foam having a thickness of 40 mm, and the strength of the polycarbonate catalog (JSP Co., Ltd. “Mira Polyca Foam (registered trademark)”) has a compressive strength of 20 N / cm ^2. As described above, the bending strength is 50 N / cm ² or more. The cloth 17 is made of a nonwoven felt having a mass of 220 g / m ² . And the edge of the upper-lower side of the foam board 15 is enclosed so that the cloth 17 may wrap, and it is clamped by the clamping part of the upper frame 19a and the lower frame 19b.

  In the overdoor 1, a plurality of metal laminated panels 10 having a width of 350 mm are used, and as described above, the plurality of metal laminated panels 10 are fitted to each other via the upper frame 19a and the lower frame 19b. However, they are connected by a pair of left and right end hinges 25 and can be moved up and down along the left and right guide rails 27 to be in a closed state and an open state.

  With such a configuration of the metal laminated panel 10, even if a flying object with a sharp impact surface collides with the surface material 11, the flying object does not penetrate the metal laminated panel 1 and tries to open a hole with a drill. However, the cloth 17 is entangled with the drill blade, and it becomes difficult to make a hole in the metal laminated panel 1. The impact resistance and the difficulty of drilling will be described in a demonstration test described later.

  Further, by sandwiching both end edges in the longitudinal direction of the laminated surface material 11, cloth 17, foamed plate material 15 and back surface material 13 with aluminum extruded shape members, for example, the outside faces other than the overdoor 1 It can be used in many ways as joinery and exterior materials.

  Further, since the upper and lower sides of the surface material 11 are fitted by fitting pieces of the upper frame 19a and the lower frame 19b, the upper and lower sides of the back material 13 are screwed to the side surfaces of the upper frame 19a and the lower frame 19b. It can be removed relatively easily. Further, since the cloth 17 and the foamed plate material 15 are also sandwiched between the upper frame 19a and the lower frame 19b, they can be removed relatively easily. Therefore, even if the structural members of the metal laminated panel 10 are damaged by flying objects or drilling, only the damaged members can be easily replaced, so that the maintenance of the metal laminated panel 10 is easy and economical. It is.

  In addition, in the Example, although the surface material 11 and the back surface material 13 are both aluminum plates, it is needless to say that it may be a steel plate. In this case, the upper frame 19a, the lower frame 19b, the pair of side frames 21, 21 and the connecting frame 23 are also preferably made of steel.

[Impact resistance confirmation test]
Next, an impact resistance confirmation test for the metal laminated panel will be described.
The test method for the impact resistance of exterior materials against flying objects is stipulated in the United States but not in Japan. In addition, the flying objects used for testing the impact resistance performance of exterior materials in the United States are 2x4 lumber, and the building materials and construction methods are different in the United States and Japan. It is not appropriate.

  Therefore, the applicant of the present application decided to verify the impact resistance by allowing a pointed iron bar and a flat iron bar to drop freely from a height of 2500 mm on a metal laminated panel installed horizontally.

Configuration of Specimen (Panel) (1) Specimen A: Metal laminated panel according to the present invention Surface material: Aluminum plate having a thickness of 0.8 mm Foamed plate material: Polycarbonate foam having a thickness of 40 mm Back surface material: having a thickness of 0.6 mm Aluminum plate (2) Specimen B: Panel to be compared A front panel and a back panel are colored steel sheets having a thickness of 0.5 mm, and hard urethane is injected into the middle part thereof to foam the 52 mm thick door panel. The foamed hard urethane is in close contact with the surface material and the back material.

Shape of the fallen object (1) The fallen object a (see FIG. 4A) has a pointed tip with a hexagonal cross-section iron bar having a mass of 4.8 kg.
(2) The falling object b (see FIG. 4B) is a 32 mmφ (nominal diameter) × 8.0 kg iron bar and has a flat tip.

Place the squares in parallel on the floor, and horizontally span the test body A and the test body B so that the tips of the fallen object a and the fallen object b collide with the test body A and the test body B. It was dropped freely by 500 mm.
(1) The result of colliding the falling object a with the specimen A and the specimen B is
For specimen A, falling object a penetrated the surface material, but did not penetrate the back surface material (see FIG. 5).
On the other hand, for the specimen B, the fallen object a penetrated the panel (see FIG. 6).
(2) The result of colliding the falling object b with the specimen A and the specimen B is
For the test specimen A, the fallen object a did not penetrate into the panel, although it left a depression mark on the surface material (see FIG. 7).
On the other hand, for the specimen B, the fallen object a penetrated the surface color steel plate and penetrated into the panel (see FIG. 8).

As described above, in the impact resistance confirmation test, the fallen object a penetrated the surface material of the approximately 42 mm thick metal laminated panel according to the present invention, but did not penetrate the back surface material, but the 52 mm thick door panel. Penetrated. In addition, the fallen object b did not penetrate into the panel although it left a depression mark on the surface material of the metal laminated panel having a thickness of approximately 42 mm according to the present invention, but the colored steel plate on the surface of the door panel having a thickness of 52 mm was used. It penetrated into the panel.
Therefore, it was confirmed that the impact resistance performance of the metal laminated panel according to the present invention was higher than that of the conventional metal panel. The impact resistance performance is considered to be largely related to the thickness of the foam plate material. When the impact resistance performance is not required so much, the thickness of the foam plate material is made thinner than 40 mm and further impact resistance performance is required. In this case, the thickness of the foamed plate material can be appropriately dealt with by making it thicker than 40 mm.

[Drilling hole confirmation test]
There is no provision in Japan for the test method of the difficulty in drilling a panel, and therefore, the metal laminated panel according to the present invention was actually drilled with an electric drill for metal.

Structure of test body (panel) C: Test body A for impact resistance confirmation test (surface material: aluminum plate with a thickness of 0.8 mm, foam plate material: polycarbonate foam with a thickness of 40 mm, back surface material: thickness 0. A non-woven felt having a mass of 220 g / m ² was interposed between the surface material (6 mm aluminum plate) and the foamed plate material.

Details of drilling test From the surface material of the test body C, drilling was attempted with a metal electric drill with a cutting edge of 10 mmφ. Fig. 9 is a photograph after the drilling test. As shown by the arrow a, the surface material was able to be perforated relatively easily, but when the blade touches the cloth, the cloth entangled almost instantaneously. This makes it difficult to hold the power drill with both hands. An arrow b indicates a state in which the edge of the electric drill is applied to the cloth and rotated in order to check the entanglement of the cloth. In FIG. 9, although the photograph is not clear, the cloth is entangled several times at the blade edge.

  As described above, in the drilling difficulty confirmation test, it was possible to confirm the difficulty of drilling with the electric drill. For this reason, since it is difficult to form a hole of a size that allows a person to pass through the metal laminated panel according to the present invention in a short time, it can be said that the crime prevention performance is also excellent. In addition, since the impact due to the falling object is transmitted to the foamed plate material through the cloth due to the insertion of the cloth, it is considered that the impact force dispersion effect of the cloth also contributes to the improvement of the impact resistance performance.

DESCRIPTION OF SYMBOLS 10 Metal laminated panel which concerns on Example 11 Surface material 13 Back surface material 15 Foam board material 17 Cloth 19a Upper frame (metal frame)
19b Lower frame (metal frame)

Claims (9)

A surface material of a metal plate;
A foamed plate material having the same shape as the surface material selected from the group consisting of polycarbonate foam, rigid urethane foam, phenolic resin foam and polystyrene foam placed on the surface material,
The surface laminate and the foamed plate material are fixed to each other only at their opposite edge portions, and the surface material and the foamed plate material are not in close contact with each other, and the interlayer displacement is not restricted . The strength of the foam sheet material compressive strength 18N / cm ² or more, flexural strength of 45N / cm ² or more, a metal laminate panel according to claim 1, characterized in that.   The metal laminate panel according to claim 1 or 2, wherein the foamed plate material is polycarbonate foam.   The said surface material is an aluminum plate or a steel plate, The metal laminated panel in any one of Claim 1 thru | or 3 characterized by the above-mentioned.   The metal laminate panel according to claim 4, wherein the surface material of the aluminum plate has a thickness of 0.8 mm or more, and the surface material of the steel plate has a thickness of 0.6 mm or more. The cloth which the interlayer displacement with respect to this surface material and this foam board material is not constrained is inserted between the surface material and the foam board material , either of Claim 1 thru / or 5 characterized by things. Metal laminated panel as described. The metal laminate panel according to claim 6, wherein the cloth has a mass of 200 g / m ² or more.   The metal laminate panel according to any one of claims 1 to 7, wherein the metal laminate panel includes a back material made of the same metal plate as the surface material. A metal frame of the same metal as the surface material is attached to the edge portion where the surface material, the foamed plate material and the back surface material or the surface material, the cloth, the foamed plate material and the back surface material are fixed to each other. Worn,
The foamed plate material, or the foamed plate material and the cloth are sandwiched by the metal frame,
The metal laminate panel according to claim 8, wherein the front surface material and the back surface material are fixed to the foamed plate material or the foamed plate material and the cloth material via the metal frame.

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