JPH11350651A - Light-weight aerated concrete composite panel and its manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light-weight aerated concrete composite panel and its manufacturing method which secure the maintenance of a large-size decorated plate and prevents crack initiation caused by stress concentrating to a part of the light-weight aerated concrete board corresponding to a joint part in the circumference of the decorated plate by the negative pressure and wind pressure, by wholly and tightly sticking the large decorated plate to the light-weight aerated concrete board, even when there is warping in the large decorated plate or unevenness (level difference) in the light- weight aerated concrete board. SOLUTION: This composite panel A is so constituted that a hardening layer 4 and a stress releaving layer 5 are interposed between a large decorated plate 1 and ALC board 2 and locked by a lock metal 6. The ALC board 2 in a side attaching the large decorated plate 1 has an anchorage groove 7 formed in a prescribed position. The large decorated plate 1 has a latch hole 1a for latching latch claws 18, 19 of a lock metal 6 formed therein and the latch claws 18, 19 of the lock metal 6 are latched to the latch hole 1a of the large decorated plate 1 so that an anchor part 9 of the lock metal 6 is projected from the rear face of the large decorated plate 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lightweight cellular concrete (ALC) composite panel used for an exterior wall of a building and provided with a decorative panel on a surface thereof, and a method for producing the same.

[0002]

2. Description of the Related Art As an example of a conventional lightweight cellular concrete composite panel, as described in Japanese Patent Application Laid-Open No. 10-46675 (first known example), a fixed metal piece is fixed to a decorative plate so as to protrude. The protruding fixing portion is provided on the decorative plate mounting surface of the ALC plate, and the inside thereof is buried in an expanded fixing hole so that the ALC is
A board and a decorative board are integrated (composite), and a utility model registration No. 2540846 (Japanese Utility Model Laid-Open No. 4-62733) (second known example)
As described in the above, the anchor of the mounting hardware is fixed to the exterior plate so that it protrudes, and the projected anchor portion is buried in the embedding hole provided in the wall for mounting the exterior plate of the building frame, and the exterior panel is attached to the building frame. Are integrated (composite).

[0003]

However, in each of the above-mentioned known examples, the decorative plate and the exterior plate are warped,
When the ALC plate or the building frame has irregularities (steps), the ALC plate and the decorative plate or the building frame and the exterior plate cannot be completely adhered to each other, and a gap is formed between them. In particular, when the surface area of one decorative panel or exterior panel is 0.1 m ² or more and is large, the gap becomes remarkable, and the gap between the ALC panel and the decorative panel or between the building frame and the external panel is large. If there is, the reinforcement effect of the decorative panel and the exterior panel by sticking to the ALC board and the building frame cannot be obtained, and if the decorative panel or the exterior panel is a ceramic panel, etc., it will be damaged by external force etc. There is a problem that it is easy.

[0004] In particular, in the case of an ALC plate, since the surface has irregularities, a gap is easily generated between the ALC plate and the decorative plate, and AL
When an ALC composite panel in which a C plate and a decorative plate are integrated (composite) is mass-produced in a factory and transported to a construction site, a device for protecting the decorative plate is required.

For example, when the ALC composite panels manufactured in a factory are temporarily placed in a factory or a site, or when they are loaded on a truck and transported, a large number of ALC composite panels are stacked with a sleeper interposed therebetween. Since there is a possibility that the decorative panel in contact with the sleeper may be damaged due to the weight of the composite panel, a large number of sheets cannot be stacked, and there is a problem that a temporary storage space increases in a factory or a site, and transport efficiency decreases.

[0006] In addition, the sleepers are enlarged, and ALC
It is conceivable to distribute the load of the composite panel, but in this case, a large sleeper is required, which is uneconomical.

In the first known example, when the decorative board and the ALC board are directly fixed in a planar state with an adhesive, the ALC
It is known that the bending performance of the ALC composite panel is significantly lower than the bending performance of the ALC plate itself when a negative pressure acts on the composite panel.

[0008] This is because a large decorative plate having a high rigidity such as a ceramic plate and a surface area of 0.1 m ² or more is directly applied to a material having a low rigidity (elastic coefficient) such as an ALC plate. When a negative pressure is applied to the ALC composite panel and the ALC composite panel tries to bend, the portion where the decorative plate and the ALC plate are in contact with each other is fixed in a planar shape, whereas the rigidity is increased. Since the joints between the decorative panels have low rigidity, the displacement (stress) concentrates on the joints between the decorative panels, and the ALC composite panel is formed at the joint between the decorative panels with a load smaller than the bending performance of the original ALC panel. There is a risk of cracking.

In order to avoid this, it is conceivable to arrange reinforcement reinforcing bars provided inside the ALC plate more than usual, but this is uneconomical.

[0010] In the ALC composite panel in which a plurality of large decorative panels are laminated on the ALC panel, when the decorative panel is directly adhered to the surface of the ALC panel with a hard material such as mortar, the decorative panel and the decorative panel due to a temperature change. There is a possibility that a crack may be formed in a portion of the ALC plate corresponding to the joint around the decorative plate due to a difference in expansion and contraction of the ALC plate.

The present invention has been made to solve the above problems, and
The purpose is to make the large decorative veneer and the lightweight cellular concrete plate fully adhere to each other even if the large decorative panel is warped or the lightweight cellular concrete plate has unevenness (step). In addition to ensuring the preservation of the board, the difference in expansion and contraction between the large decorative board and the lightweight cellular concrete board due to temperature changes causes cracks in the lightweight cellular concrete board corresponding to the joints around the decorative board, and the makeup due to negative pressure or wind pressure An object of the present invention is to provide a lightweight cellular concrete composite panel capable of preventing stress from being concentrated on a portion of a lightweight cellular concrete plate corresponding to a joint portion around a plate and causing a crack, and a method of manufacturing the same.

[0012]

According to the present invention, there is provided a lightweight cellular concrete composite panel comprising a lightweight cellular concrete board and a plurality of large decorative panels laminated on the lightweight cellular concrete panel. The lightweight cellular concrete board and the decorative board are stacked so as to be relatively movable in the plane direction via the unevenness adjustment layer.

According to the above construction, the large decorative panel is warped or the lightweight cellular concrete panel is uneven (stepped) due to the unevenness adjusting layer interposed between the lightweight cellular concrete panel and the large decorative panel. Even in such a case, it is possible to secure the maintenance of the large decorative panel by closely contacting the large decorative panel and the lightweight cellular concrete panel and reinforcing the large decorative panel with the lightweight cellular concrete panel.

Further, since the lightweight cellular concrete board and the large decorative panel are laminated so as to be relatively movable in the plane direction by the unevenness adjusting layer, the lightweight cellular concrete board and the large decorative panel can be subjected to expansion and contraction differences due to temperature changes. Thus, the lightweight cellular concrete board and the large decorative board are relatively moved in the plane direction, so that no crack is formed in a portion of the lightweight cellular concrete board corresponding to the joint portion around the decorative board, and the lightweight cellular concrete board and the large decorative panel are subjected to the negative pressure or wind pressure. Stress is not concentrated on the portion of the lightweight cellular concrete plate corresponding to the joint around the decorative plate, and no crack is formed.

[0015] Further, the uneven land adjustment layer has a hardened layer formed by hardening a hardening material and a stress relieving layer, and the lightening cellular concrete board and the decorative board are relatively faced by the stress relieving layer. If the large decorative veneer is warped due to the hardened layer, or if the lightweight cellular concrete plate has irregularities (steps), the large decorative veneer and the lightweight cellular concrete plate can be entirely covered. The large decorative veneer is reinforced by the lightweight cellular concrete plate and closely adheres to the large decorative veneer, and the maintenance of the large decorative veneer can be secured. Because it can move, there is no crack in the part of the lightweight foam concrete board corresponding to the joint around the decorative board due to the difference in expansion and contraction of the large decorative board and lightweight cellular concrete board due to temperature change, Stress at the site of the lightweight cellular concrete panel that corresponds to the joint portion around the decorative plate is never entering cracks concentrated by pressure or wind pressure.

Further, when the lightweight cellular concrete board and the decorative board are connected to each other by a fastener so as to be relatively movable in the plane direction, the large decorative board can be lightened even with the unevenness adjusting layer interposed therebetween. It can be securely attached to the cellular concrete board, and the metal fittings can secure relative movement performance in the surface direction between the large decorative board and the lightweight cellular concrete board.

Further, the method of manufacturing a lightweight cellular concrete composite panel according to the present invention is a method of producing a lightweight cellular concrete composite panel in which a plurality of large decorative panels are laminated on a lightweight cellular concrete panel. Arrange the unevenness adjustment layer on the surface, arrange a plurality of decorative boards so as to form joints at the top of the unevenness adjustment layer,
At this time, the lightweight cellular concrete board and the decorative board are laminated so that the lightweight cellular concrete board and the decorative board can be relatively moved in the plane direction. Features.

According to the above configuration, it is possible to easily manufacture a lightweight cellular concrete composite panel having adhesion performance and relative movement performance in the surface direction between the lightweight cellular concrete board and the large decorative panel.

In the above method for manufacturing a lightweight cellular concrete composite panel, it is preferable that the lightweight cellular concrete board and the decorative board are connected to each other by a fastener so as to be relatively movable in a plane direction.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, one embodiment of a lightweight cellular concrete composite panel and a method of manufacturing the same according to the present invention will be specifically described. FIG. 1 is a perspective view showing a configuration of a lightweight cellular concrete composite panel according to the present invention. FIG. 2 (a) is a schematic view showing a configuration of an unevenness adjusting layer of the lightweight cellular concrete composite panel according to the present invention. ) Is a schematic view showing the configuration of another unevenness adjusting layer of the lightweight cellular concrete composite panel according to the present invention, and FIG. 3 is a large decorative panel connected to the lightweight cellular concrete plate by a fastener with the unevenness adjusting layer interposed. FIG. 4 is a perspective view showing a configuration of a fixing groove formed in a lightweight cellular concrete plate, FIG. 5 is a perspective view showing a configuration of a fastener, and FIG. 6 illustrates an operation of the fastener. FIG.

In FIGS. 1 and 2A and 2B, the lightweight cellular concrete (ALC) composite panel A has a light-weight cellular concrete (ALC) plate 2 having a surface area of 0.1 m ² or more. A plurality of large decorative panels 1 composed of tiles, large ceramic plates, stone materials, artificial building materials, etc. are laminated in close contact with each other via a non-adjustment layer 3, and the non-adjustment layer 3
The LC board 2 and the large decorative board 1 are configured to be relatively movable in the plane direction.

The unevenness adjusting layer 3 includes a hardened layer 4 formed by hardening a hardening material and exhibiting an adhesion function, and a large decorative board 1.
And an inelastic stress relieving layer 5 capable of relatively moving the ALC plate 2 in the plane direction with the ALC plate 2.
The hardened layer 4, the stress relieving layer 5, and the large decorative board 1 are stacked and arranged in this order on the C board 2, and in FIG.
The stress relaxation layer 5, the hardened layer 4, and the large decorative board 1 are laminated and arranged on the board 2 in this order.

Incidentally, a plurality of hardened layers 4 and stress relaxation layers 5 may be provided alternately between the ALC plate 2 and the large decorative plate 1.

As a material for forming the cured layer 4, a curable material such as an adhesive or mortar can be used.

On the other hand, as the inelastic stress relieving layer 5, sheets such as vinyl sheets, Teflon sheets, papers and nonwoven fabrics, and materials having lubricity such as wax, asphalt, oil and the like can be applied.

The stress relieving layer 5 is made of a layer of a material having lubricity, so that the large decorative board 1 and the ALC board 2 can relatively move in the plane direction.

The hardened layer 4 and the stress relieving layer 5 may be continuously arranged over the entire surface of the ALC plate 2, but are continuously formed, for example, in a narrow line or grid having a distance of 15 cm or less. Instead, a formed one may be used.

As a member having both functions of the hardened layer 4 and the stress relieving layer 5, there is a deformable material such as a high-viscosity paste in which small particles such as sand are mixed with an adhesive material. .

When a deformable material such as the above-mentioned high-viscosity paste is used as the unevenness adjusting layer 3, FIG.
In (b), the hardened layer 4 and the stress relaxation layer 5 are composed of one layer.

Next, referring to FIGS. 3 to 6, a structure in which the large decorative plate 1 is connected to the ALC plate 2 by the fastener 6 so as to be movable in the plane direction with the non-adjustment layer 3 interposed therebetween. Will be described in detail.

As shown in FIG. 3 and FIG.
The fixing groove 7 is provided at a predetermined position on the ALC plate 2 on which the
Are formed. The large decorative board 1 is formed with a hook hole 1a on which the hooks 18 and 19 of the metal fitting 6 are hooked. 1
The anchor portion 9 of the metal fitting 6 is projected from the back surface of the large decorative board 1 by being hooked on a.

The fixing groove 7 of the large decorative board 1 provided on the ALC plate 2 is formed by a groove having a bottom 7a wider than the opening 7b and having an overhang shape with an enlarged inside.

The fixing groove 7 is manufactured by arranging a mold material such as styrofoam corresponding to the shape of the fixing groove 7 on the mold side at the time of manufacturing the ALC plate 2, and then easily forming the styrofoam by removing the styrofoam. It is possible.

Next, the structure of the fastener 6 will be described in detail with reference to FIG. The fastener 6 includes an anchor portion 9 buried in the fixing groove 7 of the ALC plate 2 and a hardened layer 4 provided continuously with the anchor portion 9 and arranged on the surfaces of the large decorative plate 1 and the ALC plate 2. And a gripping part 10 arranged between them. In this embodiment, the metal fastener 6 is formed by bending a metal thin plate made of stainless spring steel having a thickness of 0.9 mm.

The anchor portion 9 includes a pair of anchor plates 11,
It is composed of 12, a connecting plate 13 and a stopper 14. The pair of anchor plates 11 and 12 are arranged at a predetermined interval in a state substantially orthogonal to the surface of the ALC plate 2, and are located on the opposite side of the respective gripping portions 10 of the anchor plates 11 and 12. Ends 11a, 12
a are connected by a connecting plate 13.

The stopper 14 has a pair of anchor plates 11,
The stopper 12 is fixed so that these intervals do not extend beyond a predetermined distance. The stopper tongue 14a, the through hole 14b, and the sloped retaining tongue 14c.
It is composed of

That is, one of the pair of anchor plates 11, 12 is provided with a stopper tongue piece 14a formed by punching the anchor plate 11 into a square and bending it toward the other anchor plate 12. ing. The other anchor plate 12 has an elongated through hole 14b, into which the tip portion 14d of the stopper tongue piece 14a is inserted.

Further, the tip portion 14d is attached to the tip portion 14d.
Is provided with a sloping retaining tongue piece 14c formed by punching out and bending. Small tongue piece 14c is through hole 14b
This is provided so as to be engaged with the side edge 14e of the pair, so that the distance between the pair of anchor plates 11, 12 does not extend beyond a predetermined distance.

Here, the predetermined interval between the pair of anchor plates 11 and 12 is set such that the hooking claws 18 and 19 of the grip portion 10 described later are attached to the large decorative plate 1 under the condition that the elastic repulsive force of the anchor plates 11 and 12 is also applied. The interval is such that it can be hooked in the hook hole 1a. In addition, ventilation holes are provided on the connection plate 13 side of the anchor plates 11 and 12 rather than the respective stoppers 14 so that mortar can be easily received.
15 are provided.

On the other hand, the holding portion 10 of the metal fitting 6 is constituted by a pair of holding plates 16 and 17 and hooks 18 and 19 provided respectively on the holding plates 16 and 17. The pair of grip plates 16 and 17 are the pair of anchor plates 1
It is formed so as to be bent at substantially right angles to the anchor plates 11 and 12 from the respective end portions 11b and 12b of the anchors 1 and 12, and to extend in directions away from each other.

That is, the pair of gripping plates 16 and 17 are the ALC plate 2
Are provided substantially in parallel with the surface of. Further, hooks 18 and 19 are provided at the tips 16a and 17a of the pair of gripping plates 16 and 17 so as to be hooked in the hook holes 1a of the large decorative board 1.

The grip portion 10 holds the large decorative plate 1 by holding the space between the pair of anchor plates 11 and 12 so as not to extend beyond a predetermined distance by the small tongue piece 14c of the anchor portion 9. It is kept in the state.

The fixing member 6 is fixed to the surface of the ALC plate 2 by embedding the anchor portion 9 in the fixing material 8 filled in the fixing groove 7 of the ALC plate 2.

As shown in FIG. 6, the hooks 18,
19 is bent at a bending angle α that approaches each other toward the tip. On the other hand, the hanging hole 1a of the large decorative board 1
Are formed at an inclination angle β such that they approach each other toward the bottom.

The hooks 18 and 19 are inserted into the hook holes 1a of the large decorative board 1, but the bending angle α of the hooks 18 and 19 is
Is more acute than the inclination angle β (α <β),
When the hooks 18 and 19 are inserted into the hook holes 1a, only the tips of the hooks 18 and 19 act so as to be hooked at the deepest positions of the hook holes 1a.

According to the above configuration, when a tensile stress (for example, a wind pressure load in the negative pressure direction) P acts on the fastener 6, the point of application is the deepest position of the hook hole 1 a. The cross section subjected to the shearing force is ensured by the maximum cross-sectional area from the deepest position of the hanging hole 1a to the back surface of the large decorative panel 1, and the large decorative panel 1 has the maximum shear strength against the tensile load.

Since only the tips of the hooks 18 and 19 are hooked at the deepest position of the hook 1a, a gap 20 is formed between the hooks 18 and 19 near the opening of the hook 1a. When a force against the elastic force of the fastener 6 acts, the ALC plate 2 and the large decorative plate 1 can relatively move in the plane direction. This displacement is absorbed by the gap 20, so that a large load is not applied to the large decorative panel 1.

Since the hook hole 1a is larger than the hooks 18 and 19, when a large force acts on the large decorative plate 1 in the direction parallel to the groove of the hook hole 1a, the large decorative plate 1 and the large decorative plate 1 The hook 1a and the hooks 18, 19 slide in the same direction with the plate 1 so as to be relatively movable in the plane direction.

The metal fittings 6 are buried in the four corners of the large decorative board 1, and the number and positions of the metal fittings 6 are appropriately set according to the size and weight of the large decorative board 1. In addition, the fastener 6
Can be formed of a material other than metal, such as reinforced plastic, if the strength is sufficient.

Hereinafter, a method of mounting the large decorative panel 1 having the above structure will be described. First, the hooks 18 and 19 of the metal fitting 6 are hooked into the hanging holes 1 a of the large decorative board 1, and the metal fitting 6 is attached to the large decorative board 1. In this state, the anchor portion 9 of the fastener 6 projects from the large decorative plate 1.

On the other hand, the fixing material 8 is filled in the fixing groove 7 formed at a predetermined position on the surface of the ALC plate 2 as described above.
The fixing material 8 is made of a material having fluidity at first, such as mortar, epoxy resin, urethane resin, adhesive, etc., which hardens later and exhibits strength.

Then, a hardened layer 4 is formed over the entire surface on the front side of the ALC plate 2 by coating or the like, and the stress is further reduced on the entire surface of the hardened layer 4 or on a predetermined portion on the surface of the hardened layer 4. The layer 5 is fixed by adhesion with the cured layer 4.

The plurality of large decorative plates 1 are formed into joints so that the anchor portions 9 of the metal fittings 6 protruding from the large decorative plate 1 are inserted into the fixing grooves 7 so that the ALC plate 2 is formed.
Attach to

In the portion where the anchor portion 9 is inserted into the fixing groove 7, an appropriate cut is formed in the stress relieving layer 5, and since the cut is small, the stress relieving function of the stress relieving layer 5 can be exhibited without any trouble. It is possible to do.

At this time, since there is play between the anchor portion 9 and the fixing groove 7, the work can be performed while adjusting the level and the position of the large decorative board 1. Then, the hardening layer 4 and the fixing material 8 are cured and hardened for a predetermined time, and the mounting operation is completed.

As another manufacturing method, first, the stress relaxation layer 5 is fixed to the entire surface on the back side of the large decorative board 1 or at a predetermined portion by bonding or the like, and is formed at a predetermined position on the ALC board 2. The fixing groove 8 is filled with the fixing material 8 and the hardened layer 4 is formed over the entire surface of the ALC plate 2 by coating or the like, and then the anchor portion 9 of the fastening 6 protruding from the large decorative plate 1 is fixed. A plurality of large decorative boards 1 may be attached to the ALC board 2 so as to form joints so as to be inserted into the grooves 7.

As described above, the order of lamination of the stress relieving layer 5 and the hardened layer 4 may be reversed, or a structure in which a plurality of stress relieving layers 5 and the hardened layer 4 are stacked on a predetermined layer. It may be.

The fixing material 8 is composed of the anchor 9 and the ALC plate 2.
However, since the cured fixing material 8 becomes a trapezoidal solid in the fixing groove 7, the fixing groove 7 in which the opening 7b is narrowed is formed.
Mechanically meshes with the adhesive, and exhibits excellent attachment strength due to the shape effect in addition to the adhesive force of the fixing material 8 itself.

Further, the connecting plate 13 of the anchor portion 9 has a width wider than the interval between the anchor plates 11 and 12, and
When the fixing material 8 is hardened because it protrudes outward from the portion 12, the portion of the connecting plate 13 protruding from the anchor plates 11 and 12 serves as a locking portion, and exhibits an effect of preventing the anchor portion 9 from coming off from the fixing material 8. I do.

The adhesive for bonding the hardened layer 4 and the large decorative plate 1 to the stress relieving layer 5 or the adhesive between the ALC plate 2 and the stress relieving layer 5 can be any of various types such as cement and organic. Inexpensive adhesives can be selected, and the same material as the fixing material 8 may be used. In addition, large decorative board 1
When the bonding strength between the large decorative board 1 and the ALC board 2 is not so required, for example, when the weight is light, the use of the adhesive may be omitted.

As described above, in the present embodiment, since the bottom 7a of the fixing groove 7 has an overhanging shape that is wider than the opening 7b, even when the large decorative plate 1 is mounted on the soft ALC plate 2, a predetermined amount can be obtained. And the two can be securely adhered and laminated.

The large-sized decorative board 1 can be mass-produced by integrating the stress-relaxing layer 5, the hardened layer 4, and the ALC board 2 in advance in a factory. Since the ALC plate 2 has good workability, the overhang-shaped fixing groove 7 as described above can be easily formed even by using a cutting tool.

Further, since the fixing groove 7 has a play with respect to the anchor portion 9 of the metal fitting 6 to be inserted therein, when the large decorative board 1 is mounted, the large decorative sheet can be easily formed before the fixing material 8 is hardened. Horizontal adjustment and position adjustment of the board 1 can be performed, and mounting accuracy of the large decorative board 1 can be improved.

Further, since the large decorative panel 1 and the ALC panel 2 are not directly mechanically mounted with bolts, nuts, screws, etc., and all the mounting operations are performed on the front side of the ALC composite panel A, work efficiency is improved. Excellent. Also, the large decorative board 1 is A
Since the lamination is made in close contact with the LC board 2, there is also an effect that there is no need to adjust the entrance and exit of the large decorative board 1.

Further, since the whole protruding portion of the anchor portion 9 is accommodated in the fixing groove 7, the large decorative plate 1 and the ALC plate 2 come into close contact with each other via the stress relaxation layer 5 and the hardened layer 4. When the ALC composite panel A is used for an outer wall or the like, the thickness of the wall surface can be reduced, and there is also an effect that a wide effective area of the building can be secured.

Further, since the entire large decorative board 1 is fixed in close contact with the ALC board 2 with the stress relaxation layer 5 and the hardened layer 4 interposed therebetween with an adhesive or the like, when an external force is applied to the large decorative board 1 Even then, it will not break easily. Therefore, the ALC composite panel A to which the large decorative panel 1 is attached
Can be stacked flat, the efficiency of stacking at the factory is good, and a large number of sheets can be stacked, so the transportation cost can be reduced, and furthermore, no space is required when placing temporarily at the construction site It has the effect of.

According to the above-described structure, the large decorative panel 1 is warped or the ALC panel 2 is uneven (stepped) by interposing the unevenness adjusting layer 3 between the ALC panel 2 and the large decorative panel 1. Even in the case of (1), the large decorative panel 1 and the ALC panel 2 are fully adhered to each other and the large decorative panel 1 is reinforced by the ALC panel 2, so that the maintenance of the large decorative panel 1 can be ensured.

Also, the ALC board 2 and the large decorative board 1 are laminated by the non-adjustment layer 3 so as to be relatively movable in the plane direction.
The ALC board 2 and the large decorative board 1 relatively move in the plane direction in accordance with the difference in expansion and contraction of the ALC board 2 so that no crack is formed in the portion of the ALC board 2 corresponding to the joint around the large decorative board 1. In addition, stress is not concentrated on the portion of the ALC plate 2 corresponding to the joint around the large decorative plate 1 due to negative pressure or wind pressure, so that cracks are not formed.

The unevenness adjusting layer 3 has a hardened layer 4 formed by hardening a hardening material and a stress relieving layer 5, and the ALC board 2 and the large decorative board 1 are relatively moved by the stress relieving layer 5. When the large decorative board 1 is warped by the hardened layer 4 or the ALC board 2 is uneven (stepped), the large decorative board 1 and the ALC board 2 can be moved in the plane direction. And the large decorative panel 1 is reinforced by the ALC panel 2 so that the maintenance of the large decorative panel 1 can be secured, and the ALC panel 2 and the large decorative panel 1 are relatively opposed by the stress relaxation layer 5. The surface of the ALC plate 2 corresponding to the joint around the large decorative plate 1 is not cracked due to a difference in expansion and contraction of the large decorative plate 1 and the ALC plate 2 due to a temperature change. Corresponding to the joints around the large decorative panel 1 by wind pressure or wind pressure Never cracking stress is concentrated at the site of the plate 2.

When the ALC board 2 and the large decorative board 1 are connected to each other by the fasteners 6 so as to be relatively movable in the surface direction, the large decorative board 1 can be provided even with the uneven adjustment layer 3 interposed therebetween.
Can be securely attached to the ALC plate 2, and the metal fittings 6 can secure relative movement performance in the plane direction between the large decorative plate 1 and the ALC plate 2.

[0071]

As described above, the present invention has the above-described structure and operation, so that even when the large decorative panel is warped or the lightweight cellular concrete board has irregularities (steps), the large decorative panel can be reduced in weight. It is possible to secure the maintenance of a large decorative board by making full contact with the cellular concrete board.

Accordingly, for example, when a lightweight cellular concrete composite panel manufactured in a factory is temporarily placed in a factory or a site, or when it is loaded on a truck and transported, a large decorative panel is broken even if many pieces are stacked. There is no danger, and temporary storage space at factories and sites can be reduced to achieve effective use of space,
It can also improve transportation efficiency.

Further, the lightweight cellular concrete board and the large decorative board are laminated so as to be relatively movable in the plane direction by the unevenness adjusting layer. Cracks are formed in the portion of the lightweight cellular concrete plate corresponding to the joints around the plate, and stress is concentrated on the portion of the lightweight cellular concrete plate corresponding to the joints around the decorative plate due to negative pressure or wind pressure, causing cracks. Can be prevented.

As a result, there is no need to increase the number of reinforcing steel bars arranged inside the lightweight cellular concrete plate on the assumption that a negative pressure or wind pressure acts on the lightweight cellular concrete composite panel, which is economical.

When the lightweight cellular concrete board and the decorative board are connected to each other by a fastener so as to be relatively movable in the surface direction, the large decorative board can be lightened even with the unevenness adjusting layer interposed therebetween. It can be securely attached to the cellular concrete board, and the metal fittings can secure relative movement performance in the surface direction between the large decorative board and the lightweight cellular concrete board.

Further, according to the method for producing a lightweight cellular concrete composite panel according to the present invention, a lightweight cellular foam having an adhesion performance and a relative movement performance in a plane direction between a lightweight cellular concrete board and a large decorative panel is provided. Concrete composite panels can be easily manufactured.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a configuration of a lightweight cellular concrete composite panel according to the present invention.

FIG. 2A is a schematic view showing a configuration of an unevenness adjusting layer of the lightweight cellular concrete composite panel according to the present invention, and FIG. 2B is a diagram of another unevenness adjusting layer of the lightweight cellular concrete composite panel according to the present invention. It is a schematic diagram which shows a structure.

FIG. 3 is a cross-sectional explanatory view showing a configuration in which a large decorative panel is connected to a lightweight cellular concrete panel by a fastener with a non-adjustment layer interposed therebetween.

FIG. 4 is a perspective view showing a configuration of a fixing groove formed in a lightweight cellular concrete plate.

FIG. 5 is a perspective view showing a configuration of a fastener.

FIG. 6 is a view for explaining the operation of the fastener.

[Explanation of symbols]

 A: ALC composite panel 1 ... Large decorative board 1a ... Hanging hole 2 ... ALC board 3 ... Unevenness adjustment layer 4 ... Hardened layer 5 ... Stress relaxation layer 6 ... Fitting metal 7 ... Fixing groove 7a ... Bottom 7b ... Opening 8 ... Fixing material 9 ... Anchor part 10 ... Grip part 11,12 ... Anchor plate 11a, 12a, 11b, 12b ... End part 13 ... Connecting plate 14 ... Stopper 14a ... Stopper tongue piece 14b ... Through hole 14c ... Small tongue piece 14d ... Tip part 14e ... Side edge 15 ... Breathing hole 16,17 ... Grip plate 16a, 17a ... Tip part 18,19 ... Hook claw 20 ... Void

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masaharu Sasaki 2-9-1-1 Tobita-Ki, Chofu-shi, Tokyo Kashima Construction Co., Ltd. (72) Inventor Minoru Nakayama 2-9-1-1, Tobita-Kiyita, Chofu-shi, Tokyo Kashima Construction Co., Ltd.Technical Research Institute (72) Inventor Hiroaki Nakagawa 2-9-1-1, Tobita-Shi, Chofu-shi, Tokyo Kashima Construction Co., Ltd.Technical Research Laboratory (72) Inventor Shunzo Kanazaki 1-3-15 Awaza, Nishi-ku, Osaka-shi, Osaka No.Kashima Construction Co., Ltd.Kansai Branch

Claims (5)

[Claims] 1. A lightweight cellular concrete composite panel in which a plurality of large decorative panels are laminated on a lightweight cellular concrete panel, wherein the lightweight cellular concrete panel and the decorative panel are relatively in a plane direction via an uneven adjustment layer. Lightweight cellular concrete composite panel, characterized in that it is movably laminated to the panel. 2. The non-adjustment layer has a hardened layer formed by hardening a hardening material and a stress relieving layer, and the lightening cellular concrete board and the decorative board are relatively faced by the stress relieving layer. 2. The lightweight cellular concrete composite panel according to claim 1, wherein the panel is configured to be movable in a direction. 3. The lightweight cellular concrete according to claim 1, wherein the lightweight cellular concrete board and the decorative panel are connected by a fastener so as to be relatively movable in a plane direction. Composite panel. 4. A method for manufacturing a lightweight cellular concrete composite panel in which a plurality of large decorative panels are laminated on a lightweight cellular concrete board, wherein an irregularity adjusting layer is disposed on a surface of the lightweight cellular concrete board, and the irregularity adjustment is performed. A plurality of decorative boards are arranged so as to form joints at the upper part of the layer, and the lightweight foam concrete board and the decorative board are arranged such that the lightweight foam is relatively movable in the surface direction. A method for producing a lightweight cellular concrete composite panel, comprising: laminating a concrete plate, the irregularity adjusting layer, and the decorative plate. 5. The method for manufacturing a lightweight cellular concrete composite panel according to claim 4, wherein the lightweight cellular concrete panel and the decorative panel are connected to each other by a fastener so as to be relatively movable in a plane direction. .