JP2004108082A - Wooden fire door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wooden fire door which exerts sufficient fire protective performance even if the fire door has wires for an electric lock or the like installed therein. <P>SOLUTION: The wooden fire door 10 has a wooden core member 20 and the electric wires 14. According to the wooden fire door 10, a wiring void portion 15 for arranging the wires 14 for the electric lock, is formed in the core member 20, and the wires 14 are installed in the wiring void portion 15. Further a fire resistive foamed material 16 which is expandable at a predetermined temperature is set in the void portion 15 in a manner enclosing the wires 14. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wooden fire door using a paulownia material, an organic material, an inorganic material, or the like.
[0002]
[Prior art]
Conventionally, only the steel made as the specific fire prevention equipment 60 was accepted, so that the fire door is generally made of steel. Steel fire doors are sturdy, but have the drawbacks of being heavy, warping due to high heat, and having high radiant heat (5 to 8 times wood).
[0003]
Therefore, in 1990, the test methods for Class A fire doors and Class B fire doors were revised, and if certain conditions were met, even wooden doors were approved as the specified fire prevention equipment 60 or the specified fire prevention equipment 20. Wooden fire doors using paulownia wood have been developed as an opportunity.
[0004]
Then, a paulownia laminate laminated with a paulownia laminated material (see Patent Document 1), a paulownia laminated material and a thermosetting resin laminate laminated (see Patent Document 2), a paulownia material and noncombustible paper (See Patent Literature 3), a combination of paulownia wood and phenol foam (see Patent Literature 4), a combination of paulownia glued laminated wood with a refractory sheet (see Patent Literature 5), paulownia wood and volcano A combination with a functional glass fiber plate (see Patent Document 6) and the like have been developed. In addition, a structure that prevents the paulownia wood from warping (see Patent Document 7), a structure that facilitates escape from a disaster (see Patent Document 8), and the like have been developed.
[0005]
[Patent Document 1]
JP-A-7-208033 (Claims, FIG. 2)
[Patent Document 2]
JP-A-7-259445 (claims, FIG. 2)
[Patent Document 3]
JP-A-7-293127 (Claims, FIG. 1)
[Patent Document 4]
JP-A-7-324561 (Claims, FIG. 1)
[Patent Document 5]
JP 9-256746 A (Claims, FIG. 2)
[Patent Document 6]
Japanese Patent Application Laid-Open No. 2000-179245 (Claims, FIG. 2)
[Patent Document 7]
Japanese Patent Application Laid-Open No. 2000-31090 (Claims, FIG. 1)
[Patent Document 8]
JP 2001-17560 A (Claims, FIG. 1)
[0006]
[Problems to be solved by the invention]
By the way, in recent years, a key called an electric lock has been used, but when applied to a fire door, the arrangement of electric wiring becomes a problem. That is, in the case of a conventional metal fire door, since the inside is hollow, wiring can be freely arranged.However, in the case of a wooden fire door as described above, a hollow portion is required to install electric wiring. If it is provided, a portion having a low structural strength is formed, and there is also a problem in terms of fire prevention performance.
[0007]
In view of such circumstances, an object of the present invention is to provide a wooden fire door capable of exhibiting sufficient fire prevention performance even when an electric wiring such as an electric lock is installed.
[0008]
[Means for Solving the Problems]
According to a first aspect of the present invention for solving the above-mentioned problems, in a wooden fire door having a wooden core and an electric wiring, a wiring cavity for arranging the electric wiring in the core is formed, A wooden fire door wherein the electric wiring is installed in the wiring cavity and a fire-resistant foam material foamed at a predetermined temperature is installed so as to surround the electric wiring.
[0009]
A second aspect of the present invention is the wooden fire door according to the first aspect, wherein the electric wiring is a wiring of an electric lock.
[0010]
According to a third aspect of the present invention, in the first or second aspect, when the refractory foam material foams, the foamed foam member fills the wiring cavity, thereby preventing the wiring coating from burning. Wooden fire doors, characterized in that they are designed to be fired.
[0011]
A fourth aspect of the present invention is the wooden fire door according to any one of the first to third aspects, wherein the core material is mainly made of a paulownia material.
[0012]
A fifth aspect of the present invention is the wooden fire door according to any one of the first to fourth aspects, wherein the core material is a three-layer cloth-clad laminate of paulownia laminated wood.
[0013]
A sixth aspect of the present invention is the wooden fire door according to any one of the first to fifth aspects, wherein a decorative plywood is provided on a surface of the core material via a fire-resistant member. is there.
[0014]
According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the refractory member is at least one selected from a refractory paint layer, a refractory sheet, a volcanic glass fiber board, a phenol foam, and a noncombustible paper. A wooden fire door characterized by the following.
[0015]
An eighth aspect of the present invention is the wooden fire door according to any one of the first to seventh aspects, wherein a graphite-based foam material is provided near an end face of the door in a longitudinal direction thereof. It is in.
[0016]
The present invention, even if a wiring cavity for installing electric wiring such as an electric lock is formed in the core material of a wooden fire door, the electric wiring is covered with a fire-resistant foam that foams at a predetermined temperature, We found that if the fire-resistant foam was foamed in the event of a fire, the reduction in strength of the wiring cavity would be suppressed, and depending on the design, the strength would be rather improved, and the fire protection performance could be maintained at the same level as without wiring. And it is completed.
[0017]
According to the present invention, when a fire occurs, the fire-resistant foam material around the electric wiring in the wiring cavity foams and fills the wiring cavity, so that the fire prevention performance is reduced due to the formation of the wiring cavity. Can be prevented, and disconnection of electric wiring can be prevented.
[0018]
In the present invention, the electric wiring (simply referred to as wiring) is, for example, wiring of an electric lock, and refers to wiring for supplying electric power as well as wiring for supplying electric power. Therefore, the present invention includes a wooden fire door requiring only wiring for transmitting electric signals other than the electric lock.
[0019]
In addition, the structure of the electric lock as an example is not particularly limited, and there is no particular limitation as to what is provided at the door knob, what is provided at the upper or lower part of the door, but the hinge part of the wooden fire door from the electric lock. It is necessary to install wiring up to this point. Accordingly, the wiring cavity may be provided from the hinge mounting portion of the wooden fire door to the mounting position of the electric lock, and it goes without saying that the wiring hollow portion may be provided linearly or bent. The dimensions of the wiring cavity are not particularly limited as long as wiring can be installed. For example, a rectangular cavity having a side of about 0.5 cm to 2 cm or a circular cross section having a diameter of about 0.5 cm to 2 cm is provided. It is. The wiring cavity is preferably provided near the center in the thickness direction of the core material in order not to reduce the fire protection characteristics of the core material, but may be provided on any surface side. The method of forming the wiring cavity is not particularly limited, and may be formed by processing a core material. For example, when the core material has a three-layer structure as described below, Before forming, it may be formed in advance.
[0020]
Further, the refractory foamed material arranged so as to surround the wiring of the electric lock in the present invention foams at a predetermined temperature, for example, about 200 ° C. to 250 ° C., and can maintain the foamed state at such a temperature. Yes, for example, a silicone-based foam material and a silica-based foam material can be used. The refractory foam material may be provided, for example, by winding a sheet-like material around the wiring, or may be inserted into the wiring cavity by being rounded separately from the wiring or folded into a triangular or square cross section. However, it is only necessary that they are arranged so as to substantially surround the wiring. Of course, a paste-like material may be applied and provided around the wiring, may be provided in advance by being coated when manufacturing an electric lock, or may be further provided on the wall surface of the wiring cavity. It may be provided by coating. It is necessary to provide the refractory foam material such that the foamed member after foaming fills the wiring cavity, and conversely, the wiring cavity is formed to have dimensions such that the refractory foam material is filled with the foamed member. .
[0021]
Here, the core material is preferably not fundamentally limited as long as it is made of paulownia wood, but other woods may be used as the core material if there is no problem in terms of fire prevention characteristics. When the core material is a paulownia material, it is preferable to use a material having a quality that is unlikely to warp as the paulownia material. The core material may be any of a paulownia wood cut out of a natural paulownia or a paulownia laminated wood, and may be a single piece or a laminated material.
[0022]
In general, it is preferable to use a laminated material of paulownia laminated wood, and it is particularly preferable to use a laminated material having a three-layer structure in which the wood grain (fiber direction) is crossed so as to be substantially orthogonal.
[0023]
Moreover, since the paulownia wood is likely to be warped by heat, it is necessary to cover four sides in the plane direction, that is, the four sides of the door, with a reinforcing member made of wood that is harder and harder to warp than the paulownia wood. As the reinforcing member, artificial plywood, L.P. V. L and the like. In the present invention, such a reinforcing member is referred to as a core material.
[0024]
Except for using a core material provided with such a wiring cavity, the structure of the wooden fire door is not particularly limited, and may be any having a conventionally known fire prevention structure according to the required fire protection performance. .
[0025]
For example, a paulownia laminate and a thermosetting resin laminate are laminated (see Patent Document 2), a paulownia material and non-combustible paper are combined (see Patent Document 3), and a paulownia material and phenol foam are combined. (See Patent Document 4), a combination of a paulownia laminated wood with a refractory sheet (see Patent Document 5), a combination of a paulownia wood and a volcanic glass fiber plate (see Patent Document 6), and the like can be used. However, a structure using only a paulownia laminated plate obtained by laminating a paulownia laminated material may be used (see Patent Literature 1), and a structure for preventing the paulownia wood from warping (Patent Literature 7) may be applied.
[0026]
Further, a fireproof structure is not conventionally used, but a fireproof paint may be used. Here, the fireproof paint is also called fireproof paint, and is not particularly limited as long as it forms a coating film on wood to make it nonflammable and flame retardant, but a type that is expanded or foamed to form a carbonized layer is used. It is also preferable that the temperature rise of the core material after forming the carbonized layer is suppressed within 500 ° C., preferably within 450 ° C. Such refractory paints are, for example, HCA TR, HCA ML, etc., from Flame Guard Japan, JERICO FP, etc., from Japan Institute of Environmental Studies, and SK Tycacoat, etc., from SK Chemicals, Inc. It is marketed as FRP by an industrial company.
[0027]
Such a fire-resistant paint has never been used for a wooden fire door, but it is possible to provide a simple and high-performance wooden fire door using a conventionally known fire-resistant plate or fire-resistant sheet. However, even if the fire-resistant paint is applied to the core material as it is, the core material will be peeled off. For example, it is not possible to pass the 60-minute fire resistance test of the specific fire prevention equipment, but in this case, the core material is provided with a predetermined falling prevention structure. By providing such a structure, desired fire prevention performance can be obtained.
[0028]
Here, examples of the falling prevention structure include a falling prevention groove provided on the surface of the core material. The falling-off prevention grooves are grooves provided on the surface of the core material, for example, in a lattice shape. There is no particular limitation on the falling-off preventing groove as long as the fire-resistant paint is embedded when the fire-resistant paint is applied to the surface of the core material and can be prevented from peeling off in the event of a fire. For example, the cross section is a groove having a V shape, a semicircle, a rectangle, or the like, and the width and the depth are about 1 to 5 mm, preferably about 2 to 4 mm. The pitch of the grooves is 2 to 50 cm, preferably 5 to 30 cm.
[0029]
Another example of the falling-off prevention structure includes a fire-resistant net provided on the surface of the core material. The refractory net is, for example, formed by forming refractory fibers such as glass fiber and ceramic fiber in a mesh shape. When such a fire-resistant net is fixed to the surface of the core material, the surface of the core material becomes uneven, and the fire-resistant paint layer hardly peels off. The refractory net may be fixed to the surface of the core material with a stopper such as a tucker needle.
[0030]
Also, as another example of the fall-prevention structure, after providing a fire-resistant paint layer on the surface of the core material, the fall-prevention plywood is beaten to the core material with a fastener such as a nail or a tucker needle to form the core material and the fall-prevention plywood. For holding the refractory paint layer. In this case, it is preferable to use an adhesive and fix the core material with a nail or a tucker. By doing so, the refractory paint layer is held by the plywood for preventing falling off, and does not easily fall off.
[0031]
It is preferable to provide a decorative plywood on the outermost surface of the wooden fire door of the present invention. The material used for the decorative plywood is not particularly limited as long as it is formed of natural wood, and of course, a laminated material, a laminated material, or the like formed using natural wood may be used. The decorative plywood may be bonded to the surface of the fire-resistant paint layer or the surface of the plywood for preventing falling off via a fire-resistant adhesive or the like.
[0032]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described based on embodiments.
[0033]
(Embodiment 1)
FIG. 1 is a front view of a wooden fire door according to one embodiment of the present invention, and FIG. 2 is a schematic perspective view of the wooden fire door according to one embodiment of the present invention. FIGS. 3A and 3B are cross-sectional views of a wooden fire door according to an embodiment of the present invention. FIG. 3A is a vertical cross-sectional view, and FIG.
[0034]
As shown in FIGS. 1 to 3, the wooden fire door 10 of the present embodiment has a core material including a paulownia laminated plate 24 in which a plurality of paulownia members 21 to 23 are laminated and reinforcing members 25 provided on four sides thereof. 20, a fireproof paint layer 30 provided on the surface of the core material 20, and a decorative plywood 40 bonded to the surface of the fireproof paint layer 30. The wooden fire door 10 has a structure attached with three hinges 11, and includes an electric lock 13 near a door knob 12. A wiring cavity 15 in which the wiring 14 of the electric lock 13 is provided is provided from the electric lock 13 to the top hinge 11.
[0035]
Here, the paulownia laminate 24 sandwiches the paulownia member 23, which is a direction orthogonal to the grain direction of the paulownia members 21, 22, between the paulownia members 21, 22 whose grain direction (fiber direction) matches the longitudinal direction. This is a three-layer structure in which the layers are stacked. The paulownia members 21 to 23 constituting the paulownia laminated board 24 may be formed in a predetermined size, respectively, or may be formed by joining a plurality of short dimensions. . The paulownia laminated board 24 formed by cross-stretching the paulownia members 21 to 23 so that the grain directions of the paulownia members 21 to 23 are substantially orthogonal to each other can effectively prevent warpage.
[0036]
Further, reinforcing members 25 made of wood harder than paulownia material, in this embodiment, synthetic plywood are provided on the upper, lower, left and right end surfaces of the paulownia laminated board 24. As described above, since the core member 20 is formed by surrounding the four sides of the paulownia laminated plate 24 with the reinforcing member 25, warpage can be more reliably prevented. The thickness of the reinforcing member 25 (dimension in the surface direction of the door) varies depending on the fire protection performance of the wooden fire door, but a thickness of about 150 mm is required to satisfy the 60-minute fire test.
[0037]
The core material 20 is provided with the wiring cavity 15 described above. The wiring push cavity 15 is a hole having a square cross section of about 1 cm on a side, and is provided substantially linearly from the electric lock 13 to the end face of the portion where the hinge 11 is attached in the present embodiment.
[0038]
Further, a refractory foam material 16 is provided around the wiring 14 installed in the wiring cavity 15. In the present embodiment, as the refractory foam material 16, a silicone-based foam material FS3003ZERP manufactured by Tsuneka Chemical Industry Co., Ltd. was used. This refractory foam material 16 is a sheet-like foam material as shown in FIG. Thus, in the wiring cavity 15, the refractory foam 16 is provided so as to surround the wiring 14.
[0039]
The refractory foam material 16 foams at approximately 210 ° C., and when the refractory foam material 16 foams from the state before foaming shown in FIG. 5A, as shown in FIG. The wiring cavity 15 is completely filled and sealed. Thereby, the burning of the coating of the wiring 14 is prevented, the strength of the core material 20 is secured, and the fire prevention performance is maintained.
[0040]
On the other hand, in the present embodiment, on the surface of the core member 20, that is, on the surfaces of the paulownia members 21, 22 and the reinforcing member 25, drop-off prevention grooves 51 extending in the vertical and horizontal directions, respectively, are provided in a grid at predetermined intervals. I have. Here, since the above-mentioned fire-resistant paint layer 30 is provided so as to be embedded in the fall-off prevention groove 51, peeling-off is prevented. In the present embodiment, these drop-prevention grooves 51 are rectangular having a cross section of 4 mm in width and 2 mm in depth, and are provided at a pitch of about 50 cm.
[0041]
Here, the fire-resistant paint layer 30 was formed to a thickness of about 1 to 2 mm using, for example, a fire-resistant paint manufactured by Seiwa Chemical Industry Co., Ltd., manufactured by SK Kaken Corporation.
[0042]
Further, a foam material 35 is provided on the surface of the reinforcing member 25 on the door end surface side so as to be embedded in the longitudinal direction, and a large surface is provided on the door end surface of the reinforcing member 25 so as to cover the foam material 35. A decorative material 45 which is a material or a side material is provided.
[0043]
Here, as the foaming material 35, for example, a graphite-based foaming material that expands about 10 times in the thickness direction at about 230 ° C. may be used, whereby the gap with the frontage can be completely closed, and smoke The flow can be prevented and the spread of fire can be prevented. In this embodiment, the foam material 35 is provided on four sides of the fire door, but may be provided on at least three end faces. Further, the cosmetic material 45 can be omitted as necessary depending on the location.
[0044]
The decorative plywood 40 is bonded to the surface of the fire-resistant paint layer 30. In the present embodiment, a decorative plywood having a thickness of 4 mm was used. Note that an adhesive layer 37 formed by applying a fire-resistant adhesive or the like is provided between the fire-resistant paint layer 30 and the decorative plywood 40.
[0045]
As described above, in the wooden fire door 10 of the present embodiment, the wiring cavity 15 is provided, and the wiring 14 of the electric lock 13 is covered with the fire-resistant foam 16 and provided in the wiring cavity 15, so that a fire occurs. In some cases, the wiring cavity 15 is filled with the foam member 17 of the fire-resistant foam material 16, and the strength and the fire resistance performance of the core material 20 are secured. Further, since the fire-resistant paint layer 30 is provided on both surfaces of the core material 20 so as to be embedded in the fall-off prevention grooves 51 provided on the surface of the core material 20, the fire-resistant paint layer 30 is exposed to fire or fire when a fire occurs. Since heat is trapped to prevent the core 20 from being heated to a predetermined temperature or higher, excellent fire prevention performance is exhibited.
[0046]
FIG. 6A is a cross-sectional view of a main part of a wooden fire door according to another embodiment. In this embodiment, a sheet-like refractory foam material 16 folded into a square shape is inserted into the wiring cavity 15 together with the wiring, and the refractory foam material 16 is installed so as to surround the wiring 14. Of course, after the wiring 14 is inserted, the fire-resistant foam 16 may be installed, or after the fire-resistant foam 16 is inserted, the wiring 14 may be installed. Note that, even in such a structure, when a fire occurs, the refractory foam material 16 foams and the foam member 17 fills the gap between the wiring 14 and the wiring cavity 15 as in the above-described embodiment.
[0047]
In the above-described embodiment, the structure using the fire-resistant paint is described as an example, but the structure of the wooden fire door is not limited to this. Also, it goes without saying that the structure, type, installation method, and the like of the wiring cavity and the refractory foam material can be freely set without changing the gist of the present invention.
[0048]
【The invention's effect】
As described above, according to the present invention, there is an effect that an electric lock or the like can be adopted without deteriorating the fire protection performance of a wooden fire door.
[Brief description of the drawings]
FIG. 1 is a front view of a wooden fire door according to an embodiment of the present invention.
FIG. 2 is a schematic perspective view of a wooden fire door according to Embodiment 1 of the present invention.
FIG. 3 is a cross-sectional view of the wooden fire door according to Embodiment 1 of the present invention, where (a) is a longitudinal sectional view and (b) is a transverse sectional view.
FIG. 4 is a schematic perspective view showing wiring of an electric lock installed on a wooden fire door according to an embodiment of the present invention.
FIGS. 5A and 5B are cross-sectional views of a wiring cavity of a wooden fire door according to an embodiment of the present invention, wherein FIG. 5A is a non-foamed state and FIG.
6A and 6B are cross-sectional views of a wiring cavity of a wooden fire door according to another embodiment of the present invention, wherein FIG. 6A is a non-foamed state and FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Wooden fire door 11 Hinge 12 Door knob 13 Electric lock 14 Wiring 15 Wiring cavity 16 Fire resistant foam material 17 Foam member 20 Core material 21, 22, 23 Paulownia member 24 Paulownia laminated board 25 Reinforcement member 30 Fireproof paint layer 35 Foam material 37 adhesive layer 40 decorative plywood 45 decorative material 51 fall-off prevention groove

Claims (8)

In a wooden fire door having a wooden core and having an electric wiring, a wiring cavity for arranging the electric wiring in the core is formed, and the electric wiring is installed in the wiring cavity. A wooden fire door, wherein a fire-resistant foam that foams at a predetermined temperature is installed so as to surround the electric wiring. The wooden fire door according to claim 1, wherein the electric wiring is a wiring of an electric lock. 3. The method according to claim 1, wherein when the refractory foam material foams, the wiring cavity is filled with the foamed foam member, thereby preventing the wiring coating from burning. And wooden fire doors. The wooden fire door according to any one of claims 1 to 3, wherein the core material is mainly a paulownia material. The wooden fire door according to any one of claims 1 to 4, wherein the core is a three-ply cloth-laminated laminate of paulownia laminated wood. The wooden fire door according to any one of claims 1 to 5, wherein a decorative plywood is provided on a surface of the core material via a fire-resistant member. The wooden fire door according to any one of claims 1 to 6, wherein the fire-resistant member is at least one selected from a fire-resistant paint layer, a fire-resistant sheet, a volcanic glass fiber board, a phenol foam, and a non-combustible paper. . The wooden fire door according to any one of claims 1 to 7, wherein a graphite-based foam material is provided in the vicinity of an end surface of the door along a longitudinal direction thereof.

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