JPS6130107B2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to projecting corners of external walls of buildings, decorative beams, bay windows,
This is a method for manufacturing a building base member for three-dimensional construction, which is applied to parts with three-dimensional unevenness such as small roofs.

Conventionally, when constructing three-dimensional uneven parts such as projecting corners, beams, and bay windows on the exterior wall of a building, first construct a three-dimensional frame using shaft materials on site, and then paste the lath base over it to cover it. A time-consuming construction method was used, in which a waterproof paper such as asphalt felt and a lath wire mesh were pasted on top, and then one coat of mortar was applied to the lath wire mesh, and this was used as a base for mortar finishing or spray finishing.

There was also a construction method that used a base material in which an inorganic layer was placed on a plate-shaped substrate through a waterproof layer, but even in this case, the framework was assembled three-dimensionally using shaft materials at the construction site. Although this method was more labor-saving than the former method, in which the base material was cut into small pieces and pasted together, it was still a labor-intensive construction method that required three-dimensional frameworks.

The present invention was achieved as a result of research to solve the above-mentioned problems, and consists of disposing a lightweight inorganic layer with a porous sheet on the surface of a plate-like or sheet-like substrate via a waterproof layer. This invention relates to a method for manufacturing a building base material, in which a perforated sheet is left and a V-shape or other shape is cut from the back side, and then the material is bent, molded, and bonded to obtain a predetermined shape. The aim is to eliminate the need for on-site frame construction as in the past, and to improve accuracy and
Good waterproofness provides an inexpensive manufacturing method for architectural base members.

That is, the present invention uses a base material in which a porous sheet is bonded or embedded in a lightweight inorganic layer, and a V-shaped or other shaped cut is made on the substrate side, leaving the porous sheet, and the opposing cut surfaces are brought into contact. This method uses a method of bending and forming a single base plate, and without cutting and separating it from a single base plate, it is wrapped as if the skin remains, and even complex-shaped objects such as boxes can be formed at once. Because it can be made, the precision and molding efficiency are extremely high, and there is no need for frame construction as in the past, so construction efficiency is good and material costs can be reduced, so it is advantageous in terms of cost.

In addition, when the waterproof layer is cut and separated, there is no exposure of the end surface of the board that occurs at the corner, and if the cut surface is protected with a small amount of waterproof binding material, the cut waterproof layer can easily recover its function. Therefore, it is also superior to conventional products in terms of waterproofness.

In addition, compared to the conventional case of using cut and separated sheets, there are no sealing joints on the surface, so there is no possibility of poor finishing due to water absorption from the sealing part or differences in physical properties. Because of this, the physical properties of the lightweight inorganic layer of the base material, such as water absorption and adhesion, are the same as those of the lightweight inorganic layer without the porous sheet, resulting in an extremely smooth mortar finish or spray finish. A surface is obtained.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to embodiments.

FIG. 1A shows a construction base material in which a lightweight inorganic layer 3 is disposed on a plate-shaped substrate 1 with a porous sheet 4 bonded to the surface layer through a waterproof layer 2.

As the plate-like base material 1, a wood substrate such as plywood, hardboard, particle board, or sheathing board, or an easily cut and processed inorganic laminate such as gypsum board or magnesium carbonate board is used.

As the waterproof layer 2, other materials that can form a waterproof layer, such as synthetic rubber or synthetic resin latex,
Alternatively, any material that can bond the lightweight inorganic layer 3 and the substrate 1 may be used.

The lightweight inorganic layer 3 disposed on the substrate 1 via the waterproof layer 2 is made of foamed synthetic resin particles such as polystyrene or polyurethane, organic lightweight aggregate such as cork particles, or pearlite, vermiculite, volcanic ash, or volcanic lapilli. Synthesized from inorganic binders such as cement and gypsum containing inorganic lightweight aggregates.

The porous sheet 4 adhered onto the lightweight inorganic layer 3 is made of metals such as iron, stainless steel, and aluminum; synthetic resins such as polyester, vinyl chloride, polyethylene, and polypropylene; inorganic fibers such as rock wool and glass wool; natural fibers such as cotton; A reticulated or non-woven sheet made of natural fibers such as

Figure 1A shows an example using a plate-shaped substrate, but instead of the plate-shaped substrate, synthetic resin sheets such as vinyl chloride, polyolefin, and polyester, metal sheets such as stainless steel, iron, and aluminum, or waterproof paper such as impregnated paper are used. Alternatively, a porous sheet may be embedded in the surface layer of the lightweight inorganic layer 3 as shown in FIG.

Further, if it is necessary to firmly bond the inorganic lightweight layer 3 onto the plate-like substrate 1, an adhesive layer can be interposed in addition to the waterproof layer.

FIG. 2 shows the substrate 1 of the base material for construction according to the present invention.
It is a diagram showing a state in which a cut 5 corresponding to the bending angle is made in an inverted Y shape, leaving the perforated sheet from the side.

In Figure 3, the opposite cuts made in Figure 2 are bent so that they meet, and the cut parts are fixed with a waterproof bonding material 6 such as synthetic resin adhesive or polymer cement. FIG. 3 is a diagram showing a state in which a letter-shaped base member is obtained.

Fig. 4 is a diagram showing the case where the L-shaped member obtained in Fig. 3 is constructed as a base material for the protruding corner;
Since a porous sheet is used as the connecting material for the character cut processing, even if mortar 7 is applied to the surface layer, the water absorption and adhesion of the lightweight inorganic layer are almost the same as when there is no porous sheet. There is no change and the function as a base material is not impaired.

FIG. 5 is a diagram showing the construction of a hollow decorative beam, and by using some reinforcing members 11 such as corner beams, it is possible to construct the structure with high strength even in the case of a complicated shape. Attachment can also be easily performed by using nails 10.

Architectural base materials manufactured as described above and suitable for three-dimensional areas do not necessarily share structural forces, such as projecting corners of external walls of buildings, decorative beams, bay windows, small roofs, etc. It can be applied to mortar and sprayed base material for three-dimensional parts that do not need to be coated, but it is light in weight and easy to handle when used as a base material for mortar structures such as fake trees, tool boxes, trash cans, and fences used outdoors. It is easy and suitable for mass production, and since the outside is covered with an inorganic material such as cement, it is possible to obtain an inexpensive mortar structure with extremely good durability.

[Brief explanation of the drawing]

The drawings are all cross-sectional views showing the structure of the building base material and examples of its use in the present invention. Fig. 1 shows the structure of the base material, Fig. 2 shows the V-shaped cut for bending, Fig. 3 shows the bent state, Fig. 4 shows the state where it is applied to the protruding corner, and Fig. 5 shows the state where it is cut into a V-shape for bending. It is sectional drawing which shows the state which constructed hollow decorative beams, respectively. In the figure, 1: substrate, 2: waterproof layer, 3: lightweight inorganic layer, 4: porous sheet, 5: notch, 6: binding material,
7: Cement mortar, 8: Column, 9: Structure, 1
0: nail, 11: reinforcing member.

Claims (1)

[Claims] 1 In a construction base material in which a lightweight inorganic layer containing lightweight aggregate is disposed on a sheet-like or plate-like substrate via a waterproof layer, and a porous sheet is further provided on top of the lightweight inorganic layer, the porous sheet is left behind and the desired layer is applied from the substrate side. A method for manufacturing a building base member for three-dimensional construction, which comprises forming a notch into a shape and then adhesively molding opposing notched surfaces.