JP2558751Y2 - Fire door - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial applications] Fire protection doors with enhanced fire protection used in general houses, condominiums, hotels, etc.

[0002]

[Prior art and its problems] General houses, condominiums,
In a hotel or the like, it is required that a fire hardly occurs and that if a fire occurs, it is difficult to spread the fire to another room or the like. In the event of a fire, the effects of various conditions must be considered, but it is important to prevent the spread of smoke from openings, especially from doorways, in order to prevent the spread of fire. For this reason, metal fire doors have been used.

[0003] However, the metal material expands and deforms due to heat, and the subsequent opening and closing is hindered, which hinders fire extinguishing and rescue operations. Furthermore, the appearance is flat and the design is low. The coldness of the metal material at the time of touching the finger and the metal impact sound can be disturbing or even noise.

On the other hand, wooden doors are used because of their beautiful appearance (wood grain, wood color, processing), warmth, low impact sound, and high-grade feel. The fire resistance of the door is increased by increasing the thickness of the door itself. Be improved. However, the structure for closing the gap between the door, the door frame, and the door stop member is also an important element from the viewpoint of fire protection.

[0005]

[PROBLEMS TO BE SOLVED BY THE INVENTION] In the event of a fire, the gap between the door, the door frame, and the door stop member is closed to prevent the spread of fire.

[0006]

[Technical Means] In a fire door in which a frame material f is stuck on the front and back and a large material 4 is stuck on the front and back sides, a large U-shaped material 4 in which a storage groove 5 is formed on the inner surface is provided.
A fireproof door in which a heat-expanding material 6 is inserted into the storage groove 5 while being adhered to the major material 4 so as to be flush with the upper and lower surfaces or the front and rear surfaces of the door.

[0007]

In the event of a fire, the heat-expanding material 6 expands due to the heat and presses the large material 4 against the door frame 1 and the door stop member 7 to close the gap between the door body 2 and the door frame 1.

[0008]

FIG. 1 shows an embodiment. Reference numeral 1 in FIG. 1 denotes a door frame, which is assembled inside a building opening. A door body 2 is hung and attached to the inside of the door frame 1 by a hinge 3 so as to be freely opened and closed. The door body 2 is framed, and the face material f is stuck on the front and back, and the U-shaped large material 4 in which the storage groove 5 is formed on the inner surface of the side opening is formed by the large material 4.
The upper and lower surfaces are stuck so as to be flush with the front and back surfaces of the door. The heat-expanding material 6 is housed in the housing groove 5.

The heat-expanding material 6 is adhered to the door opening or the large material 4. The storage groove 5 on the back surface of the large material 4 is provided continuously in the length direction thereof, but may be provided at an arbitrary interval and divided.

The storage grooves 5 may be provided in a row in the width direction as shown in FIG. 3A or in a plurality of rows as shown in FIG. 3B.
The major material 4 is attached to the side opening of the door body 2 using an adhesive. Or it is fixed using nails, wood screws, and tucker nails. Further, an adhesive may be used in combination with nails, wood screws, and tucker nails.

As the adhesive, it is preferable to select and use a thermoplastic adhesive or an adhesive having no heat resistance. nail,
It is preferable to use wood screws and tucker nails that are not heat-resistant, such as those made of plastic or aluminum. When heated to several hundred degrees, the adhesive strength and sticking strength decrease due to softening, melting, and decomposition. Those that do not drip are preferred.

The heat-expanding material 6 is foamed by heating and causes volume expansion, and at the same time, a material having flame retardancy itself, for example, impregnating cloth, nonwoven fabric, paper string, etc. with water glass, A sheet, string, or plate mixed with a fibrous material (glass fiber, carbon fiber, and the like) is used, but the material is not limited thereto. The heat-expanding material 6 is also attached to the upper and lower openings of the door body 2 as necessary.

The door body 2 and the door frame 1 configured as described above have the heat-expanding material 6 incorporated into the back surface of the large material 4 of the door body 2 and are softened when the large material 4 is heated to several hundred degrees. It is attached using adhesives, nails, wood screws, and tucker needles that reduce or eliminate the adhesive force and sticking force due to melting, melting, decomposition, etc. Causes foaming and volume expansion. At the same time, the large material 4 is pressed against the door frame 1 and the door stop member 7,
The gaps between the door body 2, the door frame 1, and the door stop member 7 are closed to improve airtightness. Therefore, outflow of flame and smoke from the gap between the door body 2, the door frame 1, and the door stop member 7 is prevented, and the fire prevention performance is improved.

FIG. 3A shows a type in which a large member 4 is cut and fitted into the door frame 1, and FIG. 3B shows a case where the storage grooves 5 are two rows.

[0015]

[Effects of the Invention] [a] Since the heat-expanding material 6 is stored in the large material 4 stuck so as to be flush with the front and rear surfaces of the door, the heat-expanding material 6 foams due to heat at the time of fire. Cause volume expansion. At the same time, the large member 4 is pressed against the door frame 1 and the door stop member 7 to close the gap between the door body 2 and the door frame 1 and the door stop member 7 to prevent outflow of flame and smoke.

{Circle over (b)} The design is good because the heat-expandable material 6 is provided invisible by the large material 4.

[Brief description of the drawings]

FIG. 1 is a front view of a fire door according to the present invention;

FIG. 2 is a sectional view of a part of a door stop member 7,

FIG. 3a is a sectional view of a main part when a major material 4 is cut and fitted;

FIG. 3B is a cross-sectional view of the large material 4 when the storage grooves 5 are arranged in two rows.

FIG. 4 is a sectional view of a major material 4,

[Explanation of symbols]

1: door frame, 2: door body, 3: hinge, 4: major material,
5: storage groove, 6: heat expansion material, 7: door stop member, f: face material.

Claims (3)

(57) [Scope of request for utility model registration] 1. A large U-shaped material in which a storage groove 5 is formed on an inner surface of a fire door in which a frame material f is stuck on the front and back and a large material 4 is stuck on a side opening. A fire door comprising: a heat-expanding material (6); and a heat-expanding material (6) inserted into the storage groove (5) so that the upper and lower surfaces of the large material (4) are flush with the front and back surfaces of the door. 2. The fire door according to claim 1, wherein the major member is adhered using a thermoplastic adhesive or an adhesive having no heat resistance. 3. The fire door according to claim 1, wherein the major member is fixed with a heat-meltable tucker nail.