JP2008180019A - Wooden fire door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wooden fire door which is free from aged deterioration even after long-term use and accordingly free from sharp deterioration of fire resistant property, and exerts improved fire resistant property itself compared with a conventional wooden fire door or a metallic fire door. <P>SOLUTION: The wooden fire door is formed of a rectangularly assembled frame, and a wooden fire door body mounted in the frame. The frame has a frame main body and a door stop cushion mounted inside the same. The frame main body has a longitudinal mounting recessed groove formed in a stile side-end face thereof, in which the door stop cushion having a thermo-expandable agent bonded thereto, is mounted. The door stop cushion has a door cushion base portion, the thermo-expandable agent, and a semi-circularly curved cushion piece which allows an end of the wooden fire door body to make intimate contact therewith. The wooden fire door body has a core formed of a plurality of pieces of paulownia glued laminated wood, and a face material formed of a flame retardant member. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to a wooden fire door used as a fire door of, for example, a general house, an apartment house, a hotel, or a public facility.

Conventionally, as a fire door, what was formed with metal was generally known.
However, although the metal fire door is strong, the weight of the door itself is extremely heavy, and the fire door itself warps due to high heat, and the fire prevention performance of the metal fire door has been questioned.
Furthermore, there was a problem that the radiant heat was increased to 5 to 8 times higher than that of a general wooden door.

  By the way, in recent years, the test method for Class A fire doors and Class B fire doors has been revised, and even if wooden fire doors meet certain fire prevention conditions, even wooden doors have been approved as specific fire protection equipment. Wooden fire doors using laminated timber have been proposed.

Here, as a wooden fire door, what has a wooden core material and the decorative plywood joined to both surfaces of this core material is generally known.
JP 2004-232449 A

However, such wooden fire doors have changed over time due to long-term use, and as a result, there has been a rapid decrease in fire performance, or there has been a problem with the fire performance itself.

Thus, the present invention was devised in order to solve the above-described conventional problems, and does not cause secular change even when used for many years, so that there is no sudden decrease in fire performance, and the fire performance itself is also conventional. An object of the present invention is to provide an improved wooden fire door as compared with wooden fire doors and metal fire doors.

The wooden fire door according to the present invention is:
A frame framed in a rectangular shape, and a wooden fire door attached in the frame,
The frame has a frame main body and a door-cushion cushion attached to the inside of the frame main body, and a mounting groove for a vertically long groove is formed on a side surface of the vertical frame of the frame main body to which the door-cushion cushion is attached. The mounting groove groove is attached with a door cushion to which a heating foaming agent is fixed,
The door-cushion includes a door-cushion base formed in a strip shape, a heating foam fixed to a groove provided in the base, and one end side to the other side of the door-cushion base. A cushion piece formed by being bent in a semicircular shape, and the end of the wooden fire door can be closely attached to the cushion piece,
The wooden fire door body has a core material composed of a plurality of paulownia laminated plates, and a surface material composed of a combustion delay member attached to both side surfaces of the core material.
It is characterized by
Or
The core material is composed of a laminated plate in which three paulownia laminated plates are laminated, and the surface material provided on both surfaces of the core material is constituted by a combustion delay member that is a magnesium silicate plate mixed with decorative glass fibers. Was
It is characterized by
Or
The cushion piece curved in a semicircle shape of the door cushion is closed when the fire door is closed, and the end portion of the wooden fire door body is in close contact with and extended, and the extension portion seals the gap between the fire door and the vertical frame.
It is characterized by
Or
The surface material is formed in a sheet form using a decorative glass fiber-mixed magnesium silicate, the adhesive is pre-applied to the back side of the surface material, and the coated surface is covered with a release paper,
The release paper surface is inside and rolled and stored as a separate part, and the separate part can be retrofitted to the existing door body surface.
It is characterized by
Or
The surface material is formed into a powder form using a decorative glass fiber-mixed magnesium silicate as a material, and the powder and the adhesive are sprayed on an existing door body surface to form a surface material.
It is characterized by this.

According to the wooden fire door according to the present invention, the secular change does not occur even after many years of use, and therefore the fire performance is not drastically lowered, and the fire performance itself is not limited to the conventional wooden fire door or metal fire door. There is an excellent effect that it is improved.

Hereinafter, the present invention will be described based on embodiments shown in the drawings.
A wooden fire door 1 according to the present invention includes a frame 2 framed in a rectangular shape and a wooden fire door body 3 attached in the frame 2.
Here, the frame 2 includes a frame body 4 that is framed in a substantially rectangular shape, and a door stop portion 11 that is attached to the inside of the vertical frame 7 of the frame body 4.

Here, the frame body 4 is generally composed of an upper frame 6, both vertical frames 7 and 7, and a shoe 8. And as a material of the material which comprises the upper frame 6 and both the vertical frames 7 and 7, natural wood veneers, such as a false acacia material or a white oak material, are used.
Moreover, although the wooden thing may be used as the suspension 8, generally a cold rolled stainless steel plate, a general structural rolled steel material, a hot dip galvanized steel plate, etc. are used.
There is also a wooden fire door that does not have a shoe 8. Therefore, the frame body 4 in this case is constituted by the upper frame 6 and the vertical frames 7 and 7.

Next, FIG. 1 is a cross-sectional view showing a wooden fire door 1 according to an embodiment of the present invention. The wooden fire door 1 has a vertical frame 7 and a wooden fire door body 3 on the right side in FIG. It is connected with a hinge 9 so that it can be opened indoors.
The left vertical frame 7 is provided with a notch portion that is cut out in a substantially L shape so that the left end of the wooden fire door body 3 in the width direction can enter, and the notch portion forms a door stop 11. It will be formed. Here, as is understood from FIG. 2, the door stop portion 11 is formed with a groove extending in the longitudinal direction on the inner surface of the left vertical frame 7, and the door stopper forming member 5 fitted into the groove. To form an L-shaped door stopper 11.

Further, a door cushion 12 is attached to a portion of the door stopper 11 that comes into contact with the left end of the wooden fire door 3 in the width direction.
Here, the attachment and configuration of the door-cushion cushion 12 will be described. First, the door-cushion cushion 12 is attached in a concave shape extending in the vertical direction on the indoor side surface of the door-stop member 5 as understood from FIG. A groove is formed, and the door cushion 12 is fitted and attached to the groove.

Next, the structure of the door cushion 12 will be described. The door cushion 12 has a door cushion base portion 14 formed in a long strip shape.
The material of the door cushion base 14 is not limited at all, and may be a synthetic resin type.
And the groove part extended in a longitudinal direction is formed in the surface part of this elongate strip-like door stop cushion base 14, and the heating foaming agent 15 is attached to this groove.

  The heating foaming agent 15 is configured and manufactured at a ratio of 38% by mass such as graphite, 37% by mass such as aluminum hydroxide, and 25% by mass such as polybutene / butyl rubber, for example.

  Further, a cushion piece 16 formed in a semicircular shape is formed from one end side in the width direction of the door cushion base portion 14 toward the other end side, and the cushion piece 16 curved in the semicircular shape is formed. When the fire door is closed, an end portion of a wooden fire door body, which will be described later, is in close contact and extends, and the extension portion seals the gap between the fire door and the vertical frame.

Next, the wooden fire door 3 will be described.
Here, the wooden fire door 3 has a core 13 made of a plurality of paulownia laminated plates in this embodiment.
Here, the paulownia laminated material which comprises the core material 13 by this invention is very light, and since there are few cracks and deviations, it is known as a laminated material with favorable workability. Also, when the surface is polished, it becomes glossy and beautifully finished. In addition, although it is the best merit, it is a wood that is heat-insulating and does not burn easily, so it has recently been used for fireproof doors and other small items such as small items and furniture.

A major material 18 is attached to the outer peripheral end face of the core material 13. As the material of the major material 18, for example, a decorative glass fiber mixed magnesium silicate plate or the like is used. However, a surface material 17 composed of a combustion retarding member is attached to both side surfaces of the core material 13. Here, as the material of the surface material 17, for example, a decorative glass fiber mixed magnesium silicate plate having a thickness of about 1.15 mm is used.

However, the surface material 17 is attached to both surfaces of the core material 13 in advance at a factory or the like, and the wooden fire door 3 is manufactured and shipped in that state. In order to affix the surface material 17 to the surface portion, the surface material 17 may be devised so that it can be sold alone.
For example, as shown in FIGS. 8 and 9, it is conceivable that the surface material 17 is wound into a roll to obtain a separate product, which is then sold as a product, or sold in a necessary amount. At this time, an adhesive is applied in advance to the back surface side of the surface material 17, and the coated surface is covered with a release paper 19.
And when using, the fireproof performance of the existing door body can be remarkably improved only by peeling off the release paper 19 and attaching it to the existing door body.

  In this way, the surface material 17 may be used by being attached to the surface of an existing door body alone to improve the fireproof performance of the existing door body.

That is, as described above, the surface material 17 is formed into a sheet shape using the decorative glass fiber mixed magnesium silicate as a material, and an adhesive is applied in advance to the back surface side of the surface material. It is coated and stored in a roll shape with the release paper 19 side facing inward. Then, it can be attached to the existing door body surface by retrofitting.
Further, the surface material 17 is formed into a powder form using a decorative glass fiber mixed magnesium silicate as a material, an adhesive is mixed into the powder to form a liquid material, and the liquid surface material material is applied to the existing door body surface. It is sprayed and solidified to form a sheet-like surface material 17.
Alternatively, the liquid adhesive may be sprayed on the existing door first, and then the powdered surface material may be sprayed thereon.

If such a surface material 17 is formed, the surface material for fire prevention can be smoothly formed even if the existing door body surface is formed as an uneven surface. Moreover, the thickness of the surface material 17 can be changed by changing the number of times of spraying or by making the number of times of spraying, whereby a variety of wooden fire doors with different fireproof performances can be formed.
In the above, the usage state of the wooden fire door by this invention is demonstrated.

First, in the present invention, by manufacturing the core material 13 of the wooden fire door 1 suitably used as a door having fire-proof performance of trapping fire and heat in the event of a fire, it is made of paulownia laminated material with low thermal conductivity. Higher heat insulation and fireproof performance.
That is, even if one side of the wooden fire door 1 according to the present invention is burned at a high heat of nearly 800 degrees, the non-heated side can be touched.
Therefore, there is an advantage that it is easy to evacuate and rescue even in the event of an emergency. Conventional metal doors are deformed by high heat, and it is very dangerous if the metal itself becomes hot.

  In addition, the wooden fire door 1 according to the present invention includes a door cushion 12 embedded with a core material 13 and a heating foaming agent 15, and a surface material 17 composed of a combustion delay member which is a magnesium silicate plate mixed with decorative glass fibers. In combination, the fire performance is demonstrated.

Conventional wooden cores are often made of wood boards such as MDF, but the weight is about 100kg. In addition, general steel fire-proof steel doors weigh about 70kg, and it is somewhat difficult for the general public as well as younger and older people to use it.

Thus, the wooden fire door 1 according to the present invention uses paulownia laminated wood for the core material 13, and the weight is light even if the surface material 17 is included, and it is easy to carry in and attach to the building frame. The load is light and the opening and closing during use is smooth.
Furthermore, the core 13 made of paulownia laminated material absorbs relatively low sounds, and the surface material 17 reflects high sounds. Therefore, the sound insulation performance is also at a high level.
Furthermore, the surface material 17 has a warmth, a texture, and a high-class feeling. Further, the surface material 17 can be freely selected, and a wide range of painting, engraving, design, etc. can be handled. In other words, a total interior that is harmonious with furniture and interior is possible.

In addition, it has heat resistance and heat insulation properties that exceed those of steel fire doors, is difficult to burn, does not generate smoke, and does not warp due to heat. That is, there is no warp due to flame heat, and the smoke and flame are shut out.
In addition, durability is improved in combination with a high-rigidity composite structure using paulownia laminated wood that has rigidity that is not easily distorted and hardly deteriorates.

Improves energy-saving effect and sound insulation of air conditioning, and is resistant to aging. Conversely, paulownia laminated wood does not deform due to moisture absorption or temperature change, and as the years pass, the material tightens and the strength increases.
Moreover, the antibacterial effect of paulownia does not rot, and it is durable and hygienic.
Furthermore, in consideration of the global environment, paulownia is used as a plantation material, giving consideration to precious forest resources and the global environment.

Next, the heating foaming agent of the present invention will be described. The heating foaming agent according to the present invention comprises a heating foaming type foaming material containing graphite, and the material itself expands in volume in response to heat of a predetermined temperature or more ( Thermal expansion) and a member having heat resistance, while having a characteristic of being easily scattered.
That is, the graphite-containing foam material becomes a member having excellent heat resistance when foamed. However, at the same time, since it is a material that easily scatters, the heat resistance performance is significantly reduced when it is scattered.

  For example, in a door in which a graphite-containing foam material layer is formed on both sides of the core material 13 and a decorative board is joined to the graphite-containing foam material layer, the graphite-containing foam material layer is scattered in the event of a fire. It cannot be raised.

For this reason, in the present invention, the heating foaming agent 15 is embedded in the door cushion 12 attached to the door stopper 11 of the vertical frame 7, and the heating foaming agent 15 is heated and foamed in the event of a fire to form the wooden door 3 and The gap with the door stop 11 was filled. Such use is a large usage method for improving the fire prevention performance using the heating foaming agent 15. Moreover, the heating foaming agent 15 is covered with the cushion piece 16 when the door body is sealed, which can greatly prevent misery.
Thus, the volume of the heating foaming agent 15 is expanded about 8 to 10 times, and excellent fireproof performance is obtained.

It is a cross-sectional view of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS It is structure explanatory drawing (the 1) explaining the structure of the door stop part of this invention. It is the structure explanatory drawing (the 2) explaining the structure of the door stop part of this invention. It is a structure explanatory view explaining the composition of the door stop cushion of the present invention. It is a longitudinal cross-sectional view of this invention. It is a front view of the present invention. It is a rear view of the present invention. It is explanatory drawing (the 1) of the state which rolled the surface material. It is explanatory drawing (the 1) of the state which rolled the surface material. It is a composition explanatory view explaining the composition of a wooden door. It is composition explanatory drawing explaining the structure of the conventional door body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Wooden fire door 2 Frame 3 Wooden fire door body 4 Frame main body 5 Door contact member 6 Upper frame 7 Vertical frame 8 Hook 9 Hinge 11 Door stop
12 Cushion 13 per door 13 Core material 14 Cushion base 15 per door Heating foam 16 Cushion piece 17 Surface material 18 Major material 19 Release paper

Claims (5)

A frame framed in a rectangular shape, and a wooden fire door attached in the frame,
The frame has a frame main body and a door-cushion cushion attached to the inside of the frame main body, and a mounting groove for a vertically long groove is formed on a side surface of the vertical frame of the frame main body to which the door-cushion cushion is attached. The mounting groove groove is attached with a door cushion to which a heating foaming agent is fixed,
The door-cushion includes a door-cushion base formed in a strip shape, a heating foam fixed to a groove provided in the base, and one end side to the other side of the door-cushion base. A cushion piece formed by being bent in a semicircular shape, and the end of the wooden fire door can be closely attached to the cushion piece,
The wooden fire door body has a core material composed of a plurality of paulownia laminated plates, and a surface material composed of a combustion delay member attached to both side surfaces of the core material.
A wooden fire door characterized by that.
The core material is composed of a laminated plate in which three paulownia laminated plates are laminated, and the surface material provided on both surfaces of the core material is constituted by a combustion delay member that is a magnesium silicate plate mixed with decorative glass fibers. Was
The wooden fire door as claimed in claim 1.
The cushion piece curved in a semicircle shape of the door cushion is closed when the fire door is closed, and the end of the wooden fire door body is closely attached and stretched, and the stretch portion seals the gap between the fire door and the vertical frame.
The wooden fire door according to claim 1 or 2, characterized in that:
The surface material is formed in a sheet form using a decorative glass fiber-mixed magnesium silicate, the adhesive is pre-applied to the back side of the surface material, and the coated surface is covered with a release paper,
The release paper surface is inside and rolled and stored as a separate part, and the separate part can be retrofitted to the existing door body surface.
A wooden fire door characterized by that.
The surface material is formed into a powder form using a decorative glass fiber-mixed magnesium silicate as a material, and the powder and the adhesive are sprayed on an existing door body surface to form a surface material.
A wooden fire door characterized by that.

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