JPH10121860A - Fireproof door - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fireproof door which is excellent in fireproof performance and design and capable of giving impression of high quality by fixing a face side member and a back side member of the prescribed thickness consisting of the ceramic inorganic material with tightening pieces or the heat resistant adhesive. SOLUTION: A door face side member 1 and a door back side member 2 of >=6mm in thickness consisting of the ceramic inorganic material are fixed with tightening pieces 3 or the heat resistant adhesive to form a door face plate, and its periphery is covered with a metallic frame 4. The incombustible material including the inorganic hydration-hardening composition, the inorganic filler, and the inorganic fiber is used as the ceramic inorganic material. When uneven parts are provided on the surface of the face side member 1 and the back side member 2 as necessary, and the decoration such as painting, printing and transcription is executed on the surface, the product value can be improved. A fireproof door which is excellent in fireproof performance and design and capable of giving the impression of high quality can be provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof door used for an entrance of an apartment house or an indoor door of a high-rise building.

[0002]

2. Description of the Related Art Conventionally, fireproof doors generally use a steel plate as a main material of a face material, or use wood that has been subjected to a flame retardant treatment. The former is inexpensive but not satisfactory in terms of design. The latter is good in design, but it has to be very expensive because of the complicated structure and material cost.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to solve these problems and to provide a fireproof door which has a simple structure and excellent fire protection performance and is also excellent in design.

[0004]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention solves this problem by fixing a front surface material and a rear surface material having a thickness of 6 mm or more made of a ceramic inorganic material with a tie or a heat-resistant adhesive. Provided is a fire door characterized by forming a face material. The ceramic-based inorganic material is a non-combustible material comprising an inorganic hydration hardening component, an inorganic filler, and an inorganic fiber.
Alternatively, there is provided a fire door characterized by being provided with a picture decoration.

[0005]

Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 shows a sectional structure of an embodiment of a fire door according to the present invention. The front surface material 1 and the back surface material 2 made of the ceramics-based inorganic material are fixed by the binding metal 3 to form a door surface material. The surroundings of the door surface material are covered with a metal frame material 4 so that the ends of the two surface materials are not visible, which is good in design. A space 5 may be provided between the surface material and the back material as shown in the figure, or a heat insulating material such as rock wool may be put in this space. When a thick face material is used, no space need be provided. Further, for security considerations, it is also possible to sandwich a steel plate between the front and back materials or a frame made by welding steel materials.

[0006] Ceramic inorganic materials include inorganic hydration hardening components such as Portland cement and gypsum; inorganic fillers such as calcium silicate, aluminum hydroxide and calcium carbonate; and inorganic fibers such as asbestos, glass fiber and rock wool. And a non-combustible material containing at least As these materials, known materials composed of the above-mentioned combinations such as an asbestos calcium silicate plate, a gypsum slag cement plate, and an asbestos cement plate can be used. In addition to the above-mentioned raw materials, organic fiber materials such as pulp, synthetic fiber and wood wool, lightweight aggregates such as shirasu balloons and glass beads, and extenders such as wood chips can also be added.

[0007] The method of manufacturing these inorganic materials is as follows.
There is no particular limitation, and various known methods are used. That is, a papermaking method, an extrusion method, a casting method, and the like. As a method of fixing the front surface member and the back surface member, an adhesive can be used in addition to the above-described metal fastener.
In this case, the adhesive needs to be a thermosetting type or an inorganic type having heat resistance.

The surface value of the surface material and the back material may be provided with irregularities as necessary, and the surface may be decorated with painting, printing, transfer, etc., thereby increasing the commercial value. The surface irregularities can be formed by a flat press or a roll press in the process of manufacturing the face material, or may be formed by performing a mechanical cutting process later. The decoration of the surface is performed by applying processes such as sealer treatment, surface grinding, base coating, and finish coating. If the surface is printed or transferred after the undercoating, and finally the transparent coating is applied as a surface protective layer, the design can be further enhanced.

The decoration of the surface may be performed at the end after processing into the shape of the door, or may be performed in advance at the stage where the front and back surface materials are in the form of a cut plate, and finally assembled into the shape of the door. When performing processing such as printing or transfer, the latter method is usually employed.

The thickness of the ceramic inorganic material used for the surface material and the back material can be as small as 4 mm depending on the material simply from the viewpoint of fire protection performance. It is preferably at least 6 mm, and more preferably at least 10 mm, in view of the depth of the design, the relationship between the design and the sound when the door is hit with a hand.

[0011]

【Example】

<Example 1> After a 4 mm deep groove was cut on the surface of a 12 mm thick asbestos calcium silicate plate, a urethane resin sealer was applied to secure the surface strength, and then an acrylic urethane resin base coating was applied. . Next, a transfer foil having wood grain printed thereon was pressed against the surface to transfer the wood grain pattern, and then an acrylic urethane resin-based transparent paint was applied to form a surface protective layer. A door was prepared using the decorative board thus obtained as a front surface material and a back surface material. First, a surface material and a back surface material were applied to a core material made by welding a 15 mm steel square pipe, and fixed with an epoxy resin-based heat-resistant adhesive. A steel plate for reinforcement was previously welded to the core material where the hinges and knobs of the door were attached. The space of the core material was filled with rock wool. A door panel was completed by attaching a stainless steel rim to the outer periphery of the obtained panel. The door thus obtained had a fire protection performance as a class A fire door. Also, since the surface is grooved and wood grained, it gives the impression that it is a wooden door.

<Example 2> A transfer pattern of a sandstone pattern was applied to the surface of a 24 mm thick gypsum slag cement plate having a smooth uneven pattern with a depth of 1 mm on the surface in the same manner as in Example 1. The back surfaces of the two plates were bonded to each other with an inorganic heat-resistant adhesive to form one panel, and a door was formed using the panel as a surface material. The door obtained in this way had a fire protection performance as a class A fire protection door and gave an impression as if it were a door made of one rock.

[0013]

The door of the present invention is basically nonflammable and excellent in fire prevention performance since the main material is inorganic. Also, since the surface is provided with irregularities, it has a three-dimensional effect and is excellent in design. In addition, the use of a material of a certain thickness or more as the face material makes the door itself heavy and does not make a cheap squeal when hit with hands, giving a high-quality impression. If a steel plate is used inside the door,
There is no need for security. Conversely, when it is desirable to be able to easily kick off in an emergency, this can be achieved by not using a core material.

[Brief description of the drawings]

FIG. 1 is an explanatory view showing a cross-sectional structure of an embodiment of a fire door of the present invention.

FIG. 2 is an explanatory view showing a surface structure of a surface material of one embodiment of a fire door of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Door surface material 2 ... Door back surface material 3 ... Tightening bracket 4 ... Frame material 5 ... Space

Claims (3)

[Claims] 1. A fire door comprising: a front surface material having a thickness of 6 mm or more and a back surface material made of a ceramic inorganic material fixed by a binding metal or a heat-resistant adhesive to form a door surface material. . 2. The fire door according to claim 1, wherein the ceramic-based inorganic material is a non-combustible material comprising an inorganic hydration hardening component, an inorganic filler, and inorganic fibers. 3. The fire door according to claim 1, wherein the door surface material is provided with irregularities and / or picture decorations.