JP2020180447A - Opening/closing body for fire door - Google Patents

Abstract

To provide an opening/closing body for a fire door capable of securing fire prevention performance.SOLUTION: An opening/closing body 20 for a fire door, which is configured to constitute the fire door provided in the opening of a building, includes: an opening/closing main body 30; an outdoor side aspect face cover part 40a and an indoor side aspect face cover part 40b which are provided to cover an aspect surface of the opening/closing main body 30 and which are formed by laminating a combustible cover material 41 having combustibility and a fire resistant cover material 42 having refractoriness in the depth direction; and a peeling prevention part 70 which has fire resistance and which is configured to prevent at least the fire resistant cover material 42 of each of the outdoor side aspect face cover part 40a and the indoor side aspect face cover part 40b, when a fire breaks out around the fire door in the fully closed state thereof, from peeling from the opening/closing main body 30.SELECTED DRAWING: Figure 3

Description

The present invention relates to an opening / closing body for a fire door.

Conventionally, a technique has been proposed in which a door opening / closing body has fireproof performance for a wooden door provided at an opening of a building. In such a technique, the core material, the decorative plywood provided so as to cover the found surface of the core material, the fireproof sheet provided between the core material and the decorative plywood, and the fireproof sheet and the core material. A door provided with an opening / closing body having a non-combustible paper provided between the two (see, for example, Patent Document 1) is disclosed. Further, among the constituent elements (core material, decorative plywood, refractory sheet, non-combustible paper) constituting the opening / closing body, adjacent constituent elements are connected to each other by an adhesive.

JP-A-2017-44025

Here, in the above-mentioned conventional door, when a fire breaks out at a position near the door and at a position closer to the expected direction than the door, the heat of the fire tends to cause warpage of the opening / closing body in the expected direction. In particular, as the size of the opening / closing body increases, the warpage of the opening / closing body in the expected direction tends to increase. Therefore, for example, in the event of the fire, if the adhesive applied to the fire-resistant sheet or non-combustible paper is melted by the heat of the fire and the warp of the opening / closing body in the expected direction becomes relatively large, the fire-resistant sheet or non-combustible paper Was peeled off from the core material and the found surface of the core material was directly exposed to the flame of the fire, which could cause the core material to burn. Therefore, there was room for improvement from the viewpoint of ensuring fire prevention performance.

An object of the present invention is to solve the above-mentioned problems in the prior art, and to provide an opening / closing body for a fire door, which can secure fire prevention performance.

In order to solve the above-mentioned problems and achieve the object, the opening / closing body for the fire door according to claim 1 is an opening / closing body constituting the fire door provided at the opening of the building, and the opening / closing body and the opening / closing body. , A covering means provided so as to cover the finding surface of the opening / closing body body, wherein the flammable cover material having flammability and the fire resistant cover material having fire resistance are laminated in the prospective direction. And, it is a peeling prevention means having fire resistance, and when a fire breaks out around the fire door in a fully closed state where the opening is fully closed by the opening / closing body, at least the fire resistance of the covering means A peeling prevention means for preventing the cover material from peeling from the opening / closing body body is provided.

The opening / closing body for a fire door according to claim 2 is the opening / closing body for a fire door according to claim 1, and the peeling prevention means is such that at least the fire resistant cover material is outside in the expected direction. It is provided with a deformation suppressing means for suppressing the deformation toward the body and a fixing means for fixing the deformation suppressing means to the opening / closing body body.

The opening / closing body for a fireproof door according to claim 3 is the opening / closing body for a fireproof door according to claim 2, wherein the cover means is arranged so as to come into contact with a finding surface of the opening / closing body main body. A fire-resistant cover material, a first flammable cover material located outside the fire-resistant cover material, which functions as a decorative plate, the fire-resistant cover material, and the first flammable material. A second flammable cover material located between the sex cover material and the second flammable cover material that functions as a base material is laminated, and a part of the deformation suppressing means is the first. It is possible that the flammable cover material and the fire-resistant cover material are located between each other, and that another part of the deformation suppressing means is fixed to the prospective surface of the opening / closing body body by the fixing means. The deformation suppressing means was configured so as to be.

The opening / closing body for a fire door according to claim 4 is the opening / closing body for a fire door according to claim 3, wherein the deformation suppressing means is formed into a plate-like body having a substantially U-shaped cross section.

The opening / closing body for a fire door according to claim 5 is the opening / closing body for a fire door according to claim 4, and the cover means is provided so as to cover one of the finding surfaces of the opening / closing body main body. The first cover means provided and the second cover means provided so as to cover any one of the finding surfaces of the opening / closing body body are included, and at least the opening / closing body body and the opening / closing body body are provided by the deformation suppressing means. The deformation suppressing means was formed so that the fire-resistant cover material of the first cover means and the fire-resistant cover material of the second cover means were sandwiched between them.

The opening / closing body for a fire door according to claim 6 is the opening / closing body for a fire door according to any one of claims 1 to 5, wherein the fire door is formed on a wall portion of the building. It was provided in the opening, and the peeling prevention means was provided over substantially the entire upper prospective surface located on the upper side of the prospective surface of the opening / closing body.

According to the opening / closing body for a fire door according to claim 1, it is a covering means provided so as to cover the found surface of the opening / closing body body, and is a flammable cover material having flammability and fire resistance having fire resistance. A cover means that is laminated in the prospective direction with the property cover material and a peeling prevention means that has fire resistance. When a fire breaks out around the fire door in the fully closed state, at least the fire resistance of the cover means Since the cover material is provided with a peeling prevention means for preventing the cover material from peeling from the main body of the opening / closing body, the fire resistance of the covering means is increased due to a relatively large warp of the opening / closing body in the expected direction in the event of the above fire. Even if the cover material is easily peeled off from the main body of the opening / closing body, the peeling can be prevented by the peeling prevention means. Therefore, it is possible to prevent the opening / closing body from burning when the finding surface of the opening / closing body is directly exposed to the flame of the above fire, and the conventional technique (the found surface of the core material is made of decorative plywood, fireproof sheet, non-combustible). Compared to the technology of simply covering with paper), it is possible to secure the fire protection performance of the fire door.

According to the opening / closing body for the fire door according to the second aspect, the peeling prevention means is a deformation suppressing means for suppressing at least the fire resistant cover material from being deformed toward the outside in the expected direction. Since the deformation suppressing means is provided with a fixing means for fixing the deformation suppressing means to the main body of the opening / closing body, it is possible to prevent the fire-resistant cover material of the covering means from being deformed toward the outside in the expected direction by the deformation suppressing means. It becomes easy to prevent the fire-resistant cover material from peeling off from the main body of the opening / closing body in the event of a fire. Further, the deformation suppressing means can be fixed to the opening / closing body main body by the fixing means, and the deformation suppressing means can be reliably functioned without falling off from the opening / closing body main body.

According to the opening / closing body for the fireproof door according to claim 3, the covering means is located outside the fire-resistant cover material arranged so as to be in contact with the found surface of the opening / closing body body and the fire-resistant cover material. A first flammable cover material that functions as a decorative plate, and a second flammable cover material that is located between the fire-resistant cover material and the first flammable cover material. The second flammable cover material that functions as a base material is laminated, and a part of the deformation suppressing means is located between the first flammable cover material and the fire resistant cover material, and the deformation is suppressed. Since the deformation suppressing means is configured so that the other part of the means can be fixed to the prospective surface of the opening / closing body body by the fixing means, the fireproof door is viewed from the prospective direction side in the fully closed state. Since the deformation suppressing means becomes less noticeable, the design of the fireproof door can be maintained.

According to the opening / closing body for the fire door according to the fourth aspect, since the deformation suppressing means is formed into a plate-like body having a substantially U-shaped cross section, the deformation suppressing means has a simple structure but is deformed. While a part of the suppressing means is positioned between the first flammable cover material of the covering means and the fire resistant covering material, the other part of the deformation suppressing means is fixed to the prospective surface of the opening / closing body body by the fixing means. Therefore, the manufacturability of the deformation suppressing means can be improved.

According to the opening / closing body for a fire door according to claim 5, at least the opening / closing body main body, the fire-resistant cover material of the first cover means, and the fire-resistant cover material of the second cover means are sandwiched by the deformation suppressing means. Since the deformation suppressing means is formed so as to be obtained, the deformation of the fire-resistant cover material of the first cover means and the deformation of the fire-resistant cover material of the second cover means can be suppressed by using one deformation suppressing means. Therefore, the number of deformation suppressing means to be installed can be reduced, and the installation cost of the opening / closing body can be suppressed.

According to the opening / closing body for a fire door according to claim 6, the fire door is provided in the opening formed in the wall portion of the building, and the peeling prevention means is located on the upper side of the expected surface of the opening / closing body. Since it is provided over substantially the entire upper prospective surface, it is possible to effectively prevent the upper part of the fire-resistant cover material of the covering means from peeling off from the opening / closing body body in the event of the above fire, and the found surface of the opening / closing body body is the fire. Direct exposure to the flame makes it easier to avoid burning the main body of the opening / closing body.

It is a figure which shows the fire door which concerns on embodiment of this invention, and is the front view which shows the fully closed state. It is a front view of the opening and closing body. FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 2 is a cross-sectional view taken along the line BB in FIG. It is a plan view of FIG. 2 (partially not shown). FIG. 2 is a cross-sectional view taken along the line CC of FIG. It is a figure which shows the state of the opening / closing body at the time of a fire, and is the figure which shows the region corresponding to FIG. It is a cross-sectional view which shows the state of the door end side part of an opening / closing body at the time of a fire, (a) is a figure which shows the state which the opening / closing body is not warped, and (b) is the state where the opening / closing body is warped. It is a figure which shows. It is a figure which shows the modification of the opening and closing body, and is the figure which shows the region corresponding to FIG. It is a figure which shows the modification of the opening and closing body, and is the figure which shows the region corresponding to FIG. It is a figure which shows the modification of the opening and closing body, and is the figure which shows the region corresponding to FIG. It is a figure which shows the modification of the opening and closing body, and is the figure which shows the region corresponding to FIG.

An embodiment of an opening / closing body for a fire door according to the present invention will be described in detail with reference to the accompanying drawings. First, the basic concept of the embodiment of [I] will be described, then the specific contents of the embodiment of [II] will be described, and finally, a modification to the embodiment of [III] will be described. However, the present invention is not limited to the embodiments.

[I] Basic concept of the embodiment First, the basic concept of the embodiment will be described. Embodiments typically relate to an opening / closing body constituting a fire door provided at an opening of a building.

Here, the specific structure and type of the "building" is arbitrary, but it is a concept including, for example, an apartment house such as an apartment or a condominium, an office building, a commercial facility, a public facility, and the like. Further, the "opening of a building" is an opening formed for installing an entrance / exit in a part of a building frame (for example, a wall, a ceiling, a floor, etc.). Further, the "fire door" means a door device having fire prevention performance, which is a structure for suppressing or limiting the entrance / exit or visibility of an opening of a building. In addition, the installation position and use of the fire door is arbitrary, but for example, the "entrance door" installed at the entrance, the "autonomous door" installed at the entrance or the entrance, and the "indoor door" installed inside the building. , Etc. are included. In addition, the opening and closing structure of the fire door is arbitrary, for example, a single-opening type hinged door, a single-opening type hinged door with a dive door (so-called door with a dive door), a double-open type hinged door (so-called parent-child type door), and a single-open type. It can be configured as a sliding door, a double door sliding door, or a sliding door with a sliding door. Further, the "open / closed state of the opening / closing body of the fire door" is a concept including, for example, a fully closed state, a fully open state, and a half open state. Of these, the "fully closed state" is a state in which the opening is fully closed by the opening / closing body, and in the embodiment, the position of the opening / closing body in the fully closed state is referred to as a "fully closed position". Further, the "fully open state" is a state in which the opening is fully opened by the opening / closing body, and in the embodiment, the position of the opening / closing body in the fully opened state (specifically, the position outside the room rather than the fully closed position). ) Is referred to as "fully open position". Further, the "half-open state" is a state in which the opening / closing body is located between the fully closed position and the fully opened position. Hereinafter, in the embodiment, the fire door is a one-sided hinged door arranged at a position facing the evacuation passage of a building such as a commercial facility, and a fire broke out in a room adjacent to the evacuation passage. A case where the door is a hinged door for suppressing the spread of the fire will be described.

[II] Specific contents of the embodiment Next, the specific contents of the embodiment will be described.

(Constitution)
First, the configuration of the fire door to which the opening / closing body for the fire door according to the embodiment is applied will be described. In the following description, the X direction in FIG. 1 is the left-right direction of the fire door (-X direction is the left direction of the fire door, the + X direction is the right direction of the fire door), and the Y direction in FIG. 3 is the front-back direction of the fire door (+ Y). The direction is the front direction of the fire door (outside the room), the -Y direction is the rear direction of the fire door (the direction inside the room), and the Z direction in FIG. 1 is the vertical direction of the fire door (+ Z direction). The upward direction of the fireproof door and the -Z direction are referred to as the downward direction of the fireproof door).

As shown in FIG. 1, the fire door 1 roughly includes a frame body 10, an opening / closing body 20, and a hinge portion 60. However, the description of the configuration of the fire door 1 unless otherwise specified will be omitted as it is the same as the conventional one. The mounting method (or connection method) between the various members constituting the fire door 1 to be described later is arbitrary, but for example, a mounting hole (for example, a rivet) formed in a member on the mounting side or a member on the mounting partner side. Attach the mounting member to the mounting partner member via holes, screw holes, screw holes, etc. with fixtures (eg, rivets, mounting screws, screws, etc.), welding, adhesive, double-sided tape, etc. The method (or connection) is adopted.

(Structure-frame)
The frame body 10 is installed on the peripheral edge of the opening 3 formed in the wall portion 2a of the skeleton 2, and as shown in FIG. 1, for example, a refractory material (for example, a steel material or a stainless steel material). A pair of left and right vertical frame members 11 and 12 and a pair of upper and lower horizontal frame members 13 and 14 formed of steel or the like are provided. These vertical frame members and horizontal frame members are fixed to the skeleton 2 respectively, and are formed so that the front shape becomes a substantially rectangular ring shape by being combined with each other. In the following, if necessary, of the pair of left and right vertical frame members 11 and 12, the vertical frame member 11 located on the door butt side of the opening 3 is referred to as the "door butt side vertical frame member 11", and the opening 3 The vertical frame material 12 located on the door end side of the door is referred to as a "door end side vertical frame material 12". Further, among the pair of upper and lower horizontal frame members 13 and 14, the horizontal frame member 13 located on the upper side of the opening 3 is referred to as "upper horizontal frame member 13", and the horizontal frame member located on the lower side of the opening 3 is referred to. 14 is referred to as "slip horizontal frame material 14".

Further, the door end side vertical frame member 12 is provided with a dead bolt receiver and a latch receiver (both are not shown). The dead bolt receiver is a dead bolt receiving means for receiving the dead bolt described later, which is provided on the opening / closing body 20 in the fully closed state, and is arranged at a position corresponding to the dead bolt described later. The latch receiver is a latch receiving means provided on the opening / closing body 20 for receiving the latch described later, and is arranged at a position corresponding to the latch. The details of the configuration of the frame body 10 will be described later.

(Structure-Opening and closing body)
The opening / closing body 20 is for opening / closing the opening 3. As shown in FIGS. 1 to 5, the opening / closing body 20 is provided in the frame body 10, and includes the opening / closing body body 30, the outdoor side finding surface cover portion 40a, the indoor side finding surface cover portion 40b, and the door. It includes a bottom side prospective surface cover portion 50a, a door end side prospective surface cover portion 50b, and a lower side prospective surface cover portion (not shown). In the following, among the finding surfaces of the opening / closing body 20 and the opening / closing body main body 30, the finding surface on the outdoor side of the room will be referred to as the "outdoor finding surface", and the finding surface on the indoor side of the room will be referred to. It is called "indoor side finding surface". Further, among the prospective surfaces of the opening / closing body 20 and the opening / closing body body 30, the prospective surface on the door tail side is referred to as the “door tail side prospective surface”, and the prospective surface on the door end side is referred to as the “door end side prospective surface”. The upper prospective surface is referred to as the "upper prospective surface" and the lower prospective surface is referred to as the "lower prospective surface".

(Structure-Opening / Closing Body-Opening / Closing Body)
Returning to FIG. 2, the opening / closing body body 30 is a basic structure of the opening / closing body 20, and includes the opening / closing body frame 31 and the core material 32 as shown in FIG.

(Structure-Opening / Closing Body-Opening / Closing Body-Opening / Closing Frame)
The opening / closing body frame 31 mainly bears the rigidity of the opening / closing body 20. The opening / closing body frame 31 is formed so that the front shape is a rectangular ring shape by combining a plurality of flammable stile materials (for example, a stile material made of laminated wood). Is composed of a pair of left and right vertical frame members 31a and 31b and a pair of upper and lower horizontal frame members 31c and 31d as shown in FIG. Of these, the pair of left and right vertical frame members 31a and 31b are formed so that their lengths in the longitudinal direction are substantially the same as each other, and are arranged so as to be substantially along the vertical direction. Further, the pair of upper and lower horizontal frame members 31c and 31d are formed so that their lengths in the longitudinal direction are substantially the same as each other, and are arranged so as to be substantially along the left and right directions. In the following, of the pair of left and right vertical stile members 31a and 31b, the vertical stile member 31a located on the door butt side is referred to as "door butt side vertical stile material 31a" and is located on the door end side, if necessary. The vertical stile material 31b to be used is referred to as a "door end side vertical stile material 31b". Further, of the pair of upper and lower horizontal frame members 31c and 31d, the horizontal frame member 31c located on the upper side is referred to as "upper horizontal frame member 31c", and the horizontal frame member 31d located on the lower side is referred to as "lower side frame member 31d". ".

(Structure-Opening / Closing Body-Opening / Closing Body-Core Material)
The core material 32 is filled inside the opening / closing body body 30. The core material 32 is made of, for example, a known core material (for example, rock wool, calcium silicate material) or the like, and as shown in FIG. 2, the opening / closing body frame 31 and the outdoor side finding surface cover. The space surrounded by the portion 40a and the indoor side finding surface cover portion 40b is filled.

(Structure-Opening / Closing Body-Outdoor Side Found Surface Cover, Indoor Side Found Surface Cover)
Returning to FIG. 1, the outdoor side finding surface cover portion 40a is the first cover means (covering means) for covering the outdoor side finding surface of the opening / closing body body 30, and the indoor side finding surface cover portion 40b is It is a second cover means (cover means) for covering the indoor side finding surface of the opening / closing body body 30. As shown in FIGS. 1 to 3, the outdoor side finding surface cover portion 40a is arranged so as to cover the outdoor side finding surface (in the embodiment, substantially the entire outdoor side finding surface) of the opening / closing body body 30. The indoor side finding surface cover portion 40b is arranged so as to cover the indoor side finding surface (in the embodiment, substantially the entire indoor side finding surface) of the opening / closing body body 30. The outdoor side finding surface cover portion 40a and the indoor side finding surface cover portion 40b are fixed to the opening / closing body body 30.

Further, the specific configuration of the outdoor side finding surface cover portion 40a and the indoor side finding surface cover portion 40b is arbitrary, but in the embodiment, the flammable cover material 41 and the fire resistant cover material 42 are expected. Each is configured so as to be laminated in the direction (specifically, the front-back direction). Specifically, as shown in FIG. 3, each of the outdoor side finding surface cover portion 40a and the indoor side finding surface cover portion 40b is arranged so as to be in contact with the finding surface of the opening / closing body body 30. The flammable cover material 42 and the flammable cover material 41a located outside the fireproof cover material 42 and functioning as a decorative plate (hereinafter referred to as "first flammable cover material 41a"). ) And the flammable cover material 41b located between the fire-resistant cover material 42 and the first flammable cover material 41a, which functions as a base material (hereinafter, "second flammable"). It is configured to be laminated with a cover material 41b). In this case, the method of connecting the fire-resistant cover material 42, the first flammable cover material 41a, and the second flammable cover material 41b is arbitrary, but in the embodiment, the adjacent cover materials are adhered to each other. The fireproof cover material 42 and the opening / closing body body 30 are connected to each other by an adhesive.

Here, the "fire-resistant cover material 42" is a cover material having fire resistance, and is a concept including, for example, a volcanic vitreous material, a fire-resistant plate formed of calcium silicate, or the like. Then, it will be described as a refractory plate made of a volcanic vitreous material. Further, the "flammable cover material 41" is a cover material having flammability, and is a concept including, for example, a wooden or resin plate material, but in the embodiment, the "first flammable cover material 41a" is used. Will be described as a wooden decorative board, and "second flammable cover material 41b" will be described as a wooden base plywood.

(Structure-Opening / Closing Body-Door Side Expected Surface Cover, Door End Side Expected Surface Cover, Lower Expected Surface Cover)
The door tail side prospective surface cover portion 50a is for covering the door tail side prospective surface of the opening / closing body body 30, and the door end side prospective surface cover portion 50b covers the door front side prospective surface of the opening / closing body main body 30. The lower side prospective surface cover portion is for covering the lower side prospective surface of the opening / closing body body 30. As shown in FIG. 5, the door tail side prospective surface cover portion 50a is arranged so as to cover the door tail side prospective surface (in the embodiment, substantially the entire door tail side prospective surface) of the opening / closing body body 30. The front side prospective surface cover portion 50b is arranged so as to cover the door end side prospective surface (in the embodiment, substantially the entire door end side prospective surface) of the opening / closing body body 30, and the lower prospective surface cover portion opens and closes. It is arranged so as to cover the lower prospective surface of the body body 30 (in the embodiment, substantially the entire lower prospective surface). The door tail side prospective surface cover portion 50a, the door end side prospective surface cover portion 50b, and the lower side prospective surface cover portion are the opening / closing body body 30, the outdoor side finding surface cover portion 40a, or the indoor side finding surface. It is fixed to the cover portion 40b with an adhesive or the like.

Further, the specific configurations of the door tail side prospective surface cover portion 50a, the door end side prospective surface cover portion 50b, and the lower side prospective surface cover portion are arbitrary, but in the embodiment, the door tail side prospective surface cover portion is provided. The portion 50a and the door end side prospective surface cover portion 50b are configured by using a flammable cover material (for example, a wooden decorative plate or the like). Regarding the lower prospective surface cover, an airtight material (for example, airtight rubber, etc.) and a heat-expanding refractory member provided on the outdoor side or indoor side of the room (for example, fiblock (registered)) are provided. It is configured using (trademark) etc.). However, the present invention is not limited to this, and for example, a cover material having fire resistance (for example, a fire resistant plate made of a volcanic vitreous material) may be used.

(Structure-Opening and closing body-Other configurations)
Returning to FIG. 2, other configurations of the opening / closing body 20 are arbitrary, but in the embodiment, as shown in FIG. 2, the handle portion 21, the latch (not shown), the locking device 22, and the door closer 23 are further added. I have.

Of these, the handle portion 21 is for performing an opening / closing operation of the opening / closing body 20, for example, is configured by using a known handle or the like, and is provided on the door end side portion of the opening / closing body 20 as shown in FIG. Has been done.

Further, the latch is for maintaining the opening / closing body 20 at the fully closed position. For example, the latch is configured by using a known latch and is provided on the door end side portion of the opening / closing body 20.

Further, the locking device 22 is for locking the opening / closing body 20, and is configured by using, for example, a known locking device provided with a dead bolt (not shown), and as shown in FIG. 2, the door of the opening / closing body 20 It is provided on the front side.

Further, the door closer 23 is for automatically closing the opening / closing body 20 at a safe speed when it is in the fully opened state or the half-opened state, and the rotating state of the opening / closing body 20 rotates beyond the fully opened position. It is for regulating what you do. The door closer 23 is configured by using, for example, a known door closer provided with a main body portion 23a and an arm portion 23b, and is provided in an upper portion of the opening / closing body 20. Specifically, as shown in FIGS. 2, 4, and 5, the main body 23a of the door closer 23 is provided inside the opening / closing body 30, and the arm portion 23b of the door closer 23 is the opening / closing body main body. It is provided in the accommodation space portion 24 formed by cutting out a part of the 30 and the indoor side finding surface cover portion 40b. The cutout portion of the opening / closing body body 30 and the indoor side finding surface cover portion 40b is a cover portion for covering the portion and has fire resistance (for example, a known fire resistance). A board or the like) may be provided.

(Structure-Hinge part)
Returning to FIG. 1, the hinge portion 60 is for pivotally supporting the opening / closing body 20 with respect to the door tail side vertical frame member 11. The hinge portion 60 is configured by using, for example, a known hinge member (for example, a flag hinge or the like), and as shown in FIG. 1, the end portion of the opening / closing body 20 on the door tail side (the right end in FIG. 1). In the part), a plurality of pieces are arranged side by side in the vertical direction at intervals from each other, and are attached to the opening / closing body 20 and the door tail side vertical frame member 11 by a fixture or the like.

(Structure-Details of the composition of the vertical frame material on the door tail side and the vertical frame material on the door end side)
Returning to FIG. 1, next, the details of the configuration of the door tail side vertical frame member 11 and the door end side vertical frame member 12 of the frame body 10 will be described. However, the door tail side vertical frame material 11 and the door end side vertical frame material 12 can be manufactured in any shape, method, and material, unless otherwise specified. In the embodiment, as shown in FIGS. 1 and 8, each of the door tail side vertical frame material 11 and the door end side vertical frame material 12 has a vertical frame material main body 11a, a vertical frame material side fixing material 11b, and a vertical frame material 12. It is provided with an airtight portion 11c on the frame material side.

The vertical frame material main body 11a is a basic structure of the door tail side vertical frame material 11 (or the door end side vertical frame material 12). The vertical frame material main body 11a is a hollow body formed so that the cross-sectional shape along the XY plane is substantially U-shaped open toward the outside in the left-right direction, and is above and below the opening 3. It is formed over almost the entire length of the direction. Further, as shown in FIG. 8, the vertical frame material main body 11a is provided with a vertical frame material side recess 11d and a vertical frame material side airtight recess 11e. Of these, the vertical frame material side recess 11d is for avoiding interference between the vertical frame material main body 11a and the opening / closing body 20 while accommodating the opening / closing body 20 (a recess having a so-called interlocking structure), and is vertically It is formed by denting a portion of the frame material main body 11a corresponding to the opening / closing body 20 toward the outside in the left-right direction. Further, the vertical frame material side airtight recess 11e is for accommodating a part of the vertical frame material side airtight portion 11c, and the portion of the vertical frame material side recess 11d on the indoor side of the room (in FIG. 8, rear). It is formed by denting the side part) toward the indoor side of the room.

The vertical frame material side fixing material 11b is for fixing the vertical frame material main body 11a to the skeleton 2 and reinforcing the vertical frame material main body 11a. The vertical frame material side fixing material 11b is formed of a plate-like body, and specifically, as shown in FIG. 8, the length of the vertical frame material side fixing material 11b in the front-rear direction is the vertical frame material. The length in the front-rear direction at the U-shaped open end of the main body 11a is substantially the same (or longer), and the vertical length of the vertical frame material side fixing material 11b is the length of the vertical frame material main body 11a. It is formed so as to be shorter than the length in the vertical direction. Further, the vertical frame material side fixing material 11b is provided at a predetermined interval on the U-shaped open end side of the vertical frame material main body 11a (in FIG. 8, the outer end side in the left-right direction of the vertical frame material main body 11a). A plurality of them are arranged side by side in the vertical direction with a space between the two, and are fixed to the vertical frame material main body 11a by welding or the like.

The vertical frame material side airtight portion 11c is an airtight means for enhancing the airtightness between the door tail side vertical frame material 11 (or the door end side vertical frame material 12) and the opening / closing body 20. The vertical frame material side airtight portion 11c is configured by using, for example, a known long airtight material (for example, airtight rubber or the like) (the same applies to other airtight portions), as shown in FIG. As shown, the vertical frame material side airtight recess 11e is buried over substantially the entire length of the vertical frame material main body 11a in the vertical direction.

(Structure-Details of the configuration of the upper horizontal frame material)
Returning to FIG. 1, next, the details of the configuration of the upper horizontal frame member 13 of the frame body 10 will be described. However, the upper horizontal frame member 13 can be manufactured in any shape, method, and material, unless otherwise specified. In the embodiment, as shown in FIG. 1, the upper horizontal frame member 13 includes an upper horizontal frame member main body 13a, an upper fixing member (not shown), and an upper airtight portion (not shown).

The upper horizontal frame member main body 13a is a basic structure of the upper horizontal frame member 13. The upper horizontal frame member main body 13a has a hollow shape formed so that the cross-sectional shape along the YZ plane is substantially U-shaped open toward the outside (specifically, the upper side) in the vertical direction. It is a body and is formed over substantially the entire length of the opening 3 in the left-right direction. Further, the upper horizontal frame material main body 13a is provided with an upper recess and an upper airtight recess (both are not shown). The upper recess is for avoiding interference between the upper horizontal frame member 13 and the opening / closing body 20 while accommodating the opening / closing body 20 (a recess having a so-called interlocking structure), and opens / closes in the upper horizontal frame member main body 13a. It is formed by denting the portion corresponding to the body 20 toward the outside (specifically, the upper side) in the vertical direction. Further, the upper airtight recess is for accommodating a part of the upper airtight portion, and the portion of the upper recess on the indoor side (specifically, the rear side) of the room is directed toward the indoor side of the room. It is formed by denting.

The upper fixing material is for fixing the upper horizontal frame material main body 13a to the skeleton 2 and reinforcing the upper horizontal frame material main body 13a. The upper fixing material is formed of a plate-like body, and specifically, the length of the upper fixing material in the front-rear direction is the front-rear direction at the U-shaped open end portion of the upper horizontal frame material main body 13a. It is formed so that it is substantially the same as (or longer than) the length, and the length of the upper fixing member in the left-right direction is shorter than the length of the upper horizontal frame member main body 13a in the left-right direction. Further, the upper fixing material has a predetermined interval on the U-shaped open end side of the upper horizontal frame material main body 13a (specifically, the outer end side in the vertical direction of the upper horizontal frame material main body 13a). A plurality of them are arranged side by side along the left-right direction, and are fixed to the upper horizontal frame member main body 13a by welding or the like.

The upper airtight portion is an airtight means for increasing the airtightness between the upper horizontal frame member 13 and the opening / closing body 20, and is embedded in the upper airtight recess over substantially the entire length of the upper horizontal frame member main body 13a in the left-right direction. There is.

(Structure-Details of frame structure-Scraping horizontal frame material)
Next, the details of the configuration of the slippery horizontal frame member 14 of the frame body 10 will be described. However, the slipping horizontal frame material 14 can be manufactured in any shape, method, and material, unless otherwise specified. In the embodiment, as shown in FIG. 1, the slippery horizontal frame member 14 is embedded in the floor portion 2b of the room, and includes a lower horizontal frame member main body 14a and a lower fixing member (not shown). There is.

The lower horizontal frame member main body 14a is a basic structure of the slippery horizontal frame member 14. The lower horizontal frame member main body 14a is formed so that the cross-sectional shape along the YZ plane is substantially U-shaped open toward the outside (specifically, the lower side) in the vertical direction. It is a hollow body and is formed over substantially the entire length of the opening 3 in the left-right direction. Further, the lower horizontal frame member main body 14a is provided so that the upper end portion of the lower horizontal frame member main body 14a and a portion in the vicinity thereof protrude upward from the floor portion 2b.

The lower fixing material is for fixing the lower horizontal frame material main body 14a to the skeleton 2 and reinforcing the lower horizontal frame material main body 14a, and is abbreviated as the upper fixing material of the upper horizontal frame material 13. It is configured in the same way.

(Composition-Fire protection structure)
Next, the fireproof structure of the opening / closing body 20 will be described. The opening / closing body 20 is provided with a fireproof structure for enhancing fireproof performance, and the fireproof structure includes a first fireproof structure and a second fireproof structure. Hereinafter, the first fireproof structure and the second fireproof structure will be sequentially described.

(Structure-Fireproof structure-First fireproof structure)
First, the first fire protection structure will be described. The first fire prevention structure is for preventing the found surface of the opening / closing body body 30 of the opening / closing body 20 from being directly exposed to the flame of the fire when a fire breaks out in the vicinity of the fire door 1 in the fully closed state. It has a fireproof structure and is provided with a peeling prevention portion 70 as shown in FIGS. 3 to 5.

(Structure-Fireproof structure-First fireproof structure-Peeling prevention part)
Returning to FIG. 3, the peeling prevention unit 70 may be used to cover various types of finding surface covers (specifically, the outdoor side finding surface cover 40a and the indoor side finding surface cover 40b) when the fire occurs. Of these, at least the fire-resistant cover material 42 is a peeling prevention means for preventing the opening / closing body body 30 from peeling. As shown in FIGS. 3 to 5, the peeling prevention portion 70 is provided on the upper prospective surface of the opening / closing body body 30, and includes a deformation suppressing portion 80 and a fixing portion 90.

(Structure-Fireproof structure-First fireproof structure-Peeling prevention part-Deformation suppression part)
Returning to FIG. 3, the deformation suppressing portion 80 is a deformation suppressing means for suppressing at least the fire-resistant cover material 42 from being deformed toward the outside in the prospective direction among various found surface cover portions, and has fire resistance. (Specifically, steel material, etc.) is used.

The specific configuration of the deformation suppressing portion 80 is arbitrary, but in the embodiment, a part of the deformation suppressing portion 80 is between the first flammable cover material 41a and the fire resistant cover material 42. It is located and is configured so that the other part of the deformation suppressing portion 80 can be fixed to the prospective surface of the opening / closing body body 30 by the fixing portion 90.

Specifically, first, the deformation suppressing portion 80 is formed in a steel plate-like body having a substantially U-shaped cross section, and more specifically, as shown in FIG. 3, the prospective surface side. The prospective surface side piece 81 located in, the outdoor side piece 82 protruding downward from the outdoor end of the room in the prospective surface side piece 81, and the room in the prospective surface side piece 81. It is provided with a piece 83 on the indoor side that projects downward from the end on the indoor side. In the embodiment, as shown in FIGS. 4 and 5, the opening / closing body body 30 (or the indoor side finding surface cover portion 40b) of each of the prospective surface side piece 81 and the indoor side piece 83. The part corresponding to the notch part of) shall be notched.

Further, the deformation suppressing portion 80 is provided with at least the opening / closing body body 30, the fire-resistant cover material 42 of the outdoor side finding surface cover portion 40a, and the fire resistance of the indoor side finding surface cover portion 40b by the deformation suppressing portion 80. It is formed so as to be sandwiched between the cover material 42 and the cover material 42. More specifically, as shown in FIG. 3, the prospective surface side piece 81 is in contact with the upper surface of the opening / closing body body 30, and the outdoor side piece 82 is the first flammable cover of the outdoor side finding surface cover portion 40a. It is located between the material 41a and the fire-resistant cover material 42, and the indoor side piece 83 is between the first flammable cover material 41a and the fire-resistant cover material 42 of the indoor side finding surface cover portion 40b. The deformation suppressing portion 80 is arranged so as to be located. In the embodiment, as shown in FIG. 3, the upper end portion and the vicinity portion of each of the second flammable cover material 41b of the outdoor side finding surface cover portion 40a and the indoor side finding surface cover portion 40b are cut. By forming a space by lacking, the outdoor side piece 82 is positioned between the first flammable cover material 41a and the fire resistant cover material 42 of the outdoor side finding surface cover portion 40a, and the indoor side piece 82 is formed. 83 is positioned between the first flammable cover material 41a and the fireproof cover material 42 of the indoor side finding surface cover portion 40b.

Further, as shown in FIG. 5, the deformation suppressing portion 80 is provided over substantially the entire upper prospective surface of the opening / closing body 20 (however, in the embodiment, the accommodation space of the upper prospective surface of the opening / closing body 20). The part corresponding to the part 24 is excluded). In this case, the specific shape and size of the deformation suppressing portion 80 are arbitrary, but in the embodiment, they are set as follows.

That is, the shapes of the prospective surface side piece 81, the outdoor side piece 82, and the indoor side piece 83 are set to be substantially rectangular, respectively. Further, the length of the prospective surface side piece 81 in the left-right direction is set to be substantially the same as the length of the opening / closing body body 30 in the left-right direction, and the length of the prospective surface side piece 81 in the front-rear direction is opened / closed. The length is set to be slightly longer than the length of the body body 30 in the front-rear direction, and the thickness of the prospective surface side piece 81 is substantially the same as the thickness of the outdoor side piece 82 (or the indoor side piece 83). Each is set. Further, the lengths of the outdoor side piece 82 and the indoor side piece 83 in the left-right direction are set to be substantially the same as the horizontal lengths of the opening / closing body body 30, respectively, and the outdoor side piece 82 and the indoor side piece 83 are set respectively. The length in the vertical direction of the opening / closing body 30 is shorter than the length in the vertical direction of the opening / closing body body 30 (for example, a length substantially the same as or slightly shorter than the length in the front-rear direction of the opening / closing body body 30). It is set. Further, the thickness of the outdoor side piece 82 and the indoor side piece 83 may be set to a thickness capable of suppressing the deformation of the refractory cover material 42 toward the outside in the expected direction. Desirably, as an example, each may be set based on the experimental results and the like. With such a configuration, the upper portion of the opening / closing body 20 can be reinforced, and the warp of the opening / closing body 20 in the expected direction can be effectively suppressed.

Due to the deformation suppressing portion 80, in the event of the fire, the temperature of the fire-resistant cover material 42 of each of the outdoor side finding surface cover portion 40a and the indoor side finding surface cover portion 40b is high due to the heat of the fire. It is possible to effectively prevent the upper portion, which tends to become a fire, from being deformed toward the outside in the expected direction. Further, in the fully closed state, the deformation suppressing portion 80 becomes less noticeable when viewed from the expected direction side of the fire door 1, so that the design of the fire door 1 can be maintained. Further, although the deformation suppressing portion 80 has a simple structure, a part of the deformation suppressing portion 80 is combined with the first flammable cover material 41a of the outdoor side finding surface cover portion 40a (or the indoor side finding surface cover portion 40b). While being positioned between the fire-resistant cover material 42, the other part of the deformation suppressing portion 80 can be fixed to the prospective surface of the opening / closing body body 30 by the fixing portion 90, thereby improving the manufacturability of the deformation suppressing portion 80. Can be done. Further, the deformation of the fire-resistant cover material 42 of the outdoor side finding surface cover portion 40a and the deformation of the fire-resistant cover material 42 of the indoor side finding surface cover portion 40b can be suppressed by using one deformation suppressing portion 80. Therefore, the number of deformation suppressing portions 80 to be installed can be reduced, and the installation cost of the opening / closing body 20 can be suppressed.

(Structure-Fireproof structure-First fireproof structure-Peeling prevention part-Fixed part)
Returning to FIG. 3, the fixing portion 90 is a fixing means for fixing the deformation suppressing portion 80 to the opening / closing body main body 30. The fixing portion 90 is configured by using, for example, a known fixing tool having fire resistance (for example, steel screws and screws), and as shown in FIG. 3, on the upper prospective surface of the opening / closing body 20. It is provided.

Further, the method of installing the fixing portion 90 is arbitrary, but in the embodiment, a plurality of fixed portions 90 are arranged at intervals along the front-rear direction, and a plurality of fixed portions 90 are arranged at intervals along the left-right direction. It is fixed by inserting it into the prospective surface side piece 81 of the deformation suppressing portion 80 and the opening / closing body main body 30. Here, the number of fixed portions 90 to be installed is arbitrary, but it is desirable to set the number of the deformation suppressing portions 80 so that they can be maintained in a fixed state with respect to the opening / closing body body 30 during normal times and the above-mentioned fire. As an example, it may be set based on the experimental results and the like. By such an installation, the deformation suppressing portion 80 can be firmly fixed to the opening / closing body main body 30, and the installability of the peeling prevention portion 70 can be improved. Further, since the fixed portion 90 becomes less noticeable when viewed from the expected direction side of the fire door 1, the design of the fire door 1 can be maintained.

Due to the first feature as described above, in the event of the above fire, the opening / closing body 20 warps in the expected direction becomes relatively large, so that the outdoor side finding surface cover portion 40a (or the indoor side finding surface cover portion 40b) becomes relatively large. ), Even if the fire-resistant cover material 42 is easily peeled off from the opening / closing body body 30, the peeling prevention portion 70 can prevent the peeling. Therefore, it is possible to prevent the opening / closing body 30 from burning when the found surface of the opening / closing body 30 is directly exposed to the flame of the fire, and the conventional technique (the found surface of the core material is a decorative plywood or a fireproof sheet). It is possible to secure the fireproof performance of the fire door 1 as compared with the technique of simply covering with non-combustible paper. Further, the deformation suppressing portion 80 can prevent the fire-resistant cover material 42 of the outdoor side finding surface cover portion 40a (or the indoor side finding surface cover portion 40b) from being deformed toward the outside in the expected direction, and in the event of the fire. It becomes easy to prevent the fire-resistant cover material 42 from peeling off from the opening / closing body body 30. Further, the deformation suppressing portion 80 can be fixed to the opening / closing body main body 30 by the fixing portion 90, and the deformation suppressing portion 80 can be reliably functioned without falling off from the opening / closing body main body 30. Further, since the peeling prevention portion 70 is provided over substantially the entire upper prospective surface of the opening / closing body 20, the fire resistant cover material of the outdoor side finding surface cover portion 40a (or the indoor side finding surface cover portion 40b) in the event of the fire. It is possible to effectively prevent the upper portion of the opening / closing body 30 from peeling off from the opening / closing body body 30, and the opening / closing body body 30 is burned when the found surface of the opening / closing body body 30 is directly exposed to the flame of the fire. It becomes easier to avoid.

(Structure-Fire protection structure-Second fire protection structure)
Next, the second fire protection structure will be described. The second fire prevention structure is a fire prevention structure for enhancing the fire prevention performance on the prospective surface side of the opening / closing body 20 in the event of the above fire, and includes a second fire prevention structure on the door end side and a second fire prevention structure on the door end side. ing. In the embodiment, the configurations of the second fire protection structure on the door end side and the second fire protection structure on the door end side are substantially the same, so that only the configuration of the second fire protection structure on the door end side will be described below. I will do it. As shown in FIG. 6, the door end side second fireproof structure includes a prospective surface side fireproof cover material 100 and a thermal expansion fireproof member 110.

(Structure-Fireproof structure-Second fireproof structure-Expected surface side fireproof cover material)
The prospective surface side fireproof cover material 100 is a cover material for covering the door end side prospective surface of the opening / closing body body 30, and is a cover material having fire resistance. The prospective surface side fire-resistant cover material 100 is constructed by using, for example, a known cover material having fire resistance (for example, a fire-resistant plate formed of a volcanic vitreous material), and is as shown in FIG. In addition, between the opening / closing body main body 30 (specifically, the door end side vertical frame member 31b or the like) and the door end side prospective surface cover portion 50b, the door end side prospective surface of the opening / closing body 30 (in the embodiment). , It is arranged so as to cover substantially the entire door-end side prospective surface), and is fixed to the opening / closing body body 30 or the door-end side prospective surface cover portion 50b with an adhesive or the like.

(Structure-Fireproof structure-Second fireproof structure-Thermal expansion fireproof member)
In the thermal expansion refractory member 110, when the fire occurs, the thermal expansion refractory member 110 expands due to the heat of the fire, so that the gap 4 between the door end side vertical frame member 12 and the opening / closing body 20 (hereinafter, hereinafter, It is a member for closing the "door end side gap 4"). As the thermal expansion refractory member 110, for example, a known thermal expansion refractory member 110 (for example, fiblock or the like) that foams when heated at a predetermined temperature (specifically, a temperature of 150 ° C. to 250 ° C.) is used. It is configured, and a plurality of them are attached to the opening / closing body 20. Specifically, as shown in FIG. 6, a plurality of door-end side prospective surface cover portions 50b and the prospective surface-side fireproof cover material 100 are arranged side by side in the front-rear direction, and are arranged side by side in the front-rear direction. It is connected to the prospective surface cover portion 50b or the prospective surface side fireproof cover material 100 with double-sided tape, an adhesive, screws, or the like.

The specific shape and size of the thermal expansion refractory member 110 are arbitrary, but in the embodiment, the door end side gap 4 is set so as to be able to be closed in the fully closed state. Specifically, the shape of the thermal expansion refractory member 110 is set to be rectangular. However, the present invention is not limited to this, and for example, a polygonal shape other than a rectangular shape (for example, a triangular shape), a circular shape, or an elliptical shape may be used. Further, as shown in FIG. 6, the length of the thermal expansion fireproof member 110 in the front-rear direction is set to be shorter than the length of the opening / closing body body 30 in the front-rear direction. The length in the direction is set to be substantially the same as (or shorter than) the length in the vertical direction of the opening / closing body body 30. Further, the thickness of the thermal expansion refractory member 110 is set to be thinner than the thickness of the prospective surface side refractory cover material 100. However, the thickness is not limited to this, and the thickness may be set to be thicker than the thickness of the fireproof cover material 100 on the prospective surface side.

Due to such a second feature (specifically, a feature of the door end side second fire prevention structure), the door end side gap 4 can be closed by the thermal expansion refractory member 110 expanded by the heat of the fire at the time of the fire. Compared with the case where the thermal expansion refractory member 110 is not provided, it is possible to prevent the fire from spreading from one side to the other side of the fire door 1 through the door end side gap 4. Further, in the fully closed state, when a fire breaks out outside the room rather than the fire door 1, the opening / closing body 20 warps in the expected direction, so that the door end side prospective surface of the opening / closing body 20 becomes a door. Even if it is located outside the room from the front vertical frame material 12, the door end side surface of the opening / closing body 30 is directly exposed to the flame of the fire by the prospective surface side fire resistant cover material 100, so that the opening / closing body main body It is possible to avoid burning 30. Therefore, since the function of the opening / closing body body 30 can be maintained, the state in which the door end side gap 4 is closed by the thermal expansion refractory member 110 can be maintained (note that the effect of the door tail side second fire prevention structure is substantially the same. To do).

(Action of fire door)
The operation of the fire door 1 configured in this way will be described. The action of the fire door 1 is roughly divided into the action when a fire breaks out outside the room and the action when a fire breaks out inside the room, but since these actions are almost the same. In the following, only the action when a fire breaks out outside the room will be described.

That is, when a fire breaks out outside the room in the fully closed state, as shown in FIG. 7, the heat of the fire causes the fire resistance of the outdoor side finding surface cover portion 40a (or the indoor side finding surface cover portion 40b). As the adhesive adhering to the sex cover material 42 melts, a part of the door end side prospective surface and a part of the door end side prospective surface of the opening / closing body 20 are more than the door end side vertical frame material 12 in the room. The opening / closing body 20 is warped in the expected direction so as to be located on the outside. In this case, if the fire-resistant cover material 42 of the outdoor side finding surface cover portion 40a (or the indoor side finding surface cover portion 40b) tries to be deformed toward the outside in the prospective direction, the peeling prevention portion 70 (specifically) Since the deformation is suppressed by the deformation suppressing unit 80), it is possible to prevent the fire-resistant cover material 42 from peeling off from the opening / closing body body 30. As a result, the function of the fire-resistant cover material 42 of the outdoor side finding surface cover portion 40a (or the indoor side finding surface cover portion 40b) is maintained, so that the finding surface of the opening / closing body body 30 becomes the flame of the fire. It is possible to prevent the opening / closing body body 30 from burning due to direct exposure.

Further, even if the opening / closing body 20 shown in FIG. 8A does not warp in the expected direction at the time of the fire, or even if the warp shown in FIG. 8B occurs, the door The tail side prospective surface cover portion 50a and the door end side prospective surface cover portion 50b are detached from the opening / closing body body 30 as the adhesive melts due to the heat of the fire, and the door end side gap 4 and the door tail side vertical frame material 11 Since the thermal expansion fireproof member 110 provided in the gap between the opening / closing body 20 and the opening / closing body 20 (hereinafter referred to as “door tail side gap”) expands due to the heat of the fire, the door tip side gap 4 and the door tail side gap 4 Is blocked by the expanded thermal expansion fireproof member 110, so that the fire spreads from one side to the other side of the fire door 1 through the door end side gap 4 or the door tail side gap. Can be suppressed. Further, when the warp shown in FIG. 8B occurs, a part of the door end side prospective surface and a part of the door end side prospective surface of the opening / closing body 20 are separated from the door end side vertical frame member 12. Is also located on the outdoor side of the room, but since each of the door end side prospective surface and the door tail side prospective surface of the opening / closing body body 30 is covered with the prospective surface side fireproof cover material 100, these door ends It is avoided that each of the side prospect surface and the door tail side prospect surface is directly exposed to the flame of the fire. Therefore, since the function of the opening / closing body body 30 is maintained, it is possible to maintain a state in which the door end side gap 4 and the door tail side gap are closed by the thermal expansion refractory member 110.

(Effect of embodiment)
As described above, according to the embodiment, the cover means provided so as to cover the found surface of the opening / closing body body 30, the flammable cover material 41 having flammability and the fire resistant cover material 42 having fire resistance. A cover means laminated in the expected direction and a fire-resistant peeling prevention portion 70, which is at least a fire-resistant cover among the cover means when a fire breaks out around the fire-proof door 1 in the fully closed state. Since the material 42 is provided with a peeling prevention portion 70 for preventing the material 42 from peeling from the opening / closing body body 30, the covering means is such that the opening / closing body 20 is relatively warped in the expected direction in the event of the fire. Even if the fire-resistant cover material 42 is easily peeled off from the opening / closing body body 30, the peeling prevention portion 70 can prevent the peeling. Therefore, it is possible to prevent the opening / closing body 30 from burning when the found surface of the opening / closing body 30 is directly exposed to the flame of the fire, and the conventional technique (the found surface of the core material is a decorative plywood or a fireproof sheet). It is possible to secure the fireproof performance of the fire door 1 as compared with the technique of simply covering with non-combustible paper.

Further, the peeling prevention portion 70 attaches a deformation suppressing portion 80 and a deformation suppressing portion 80 to the opening / closing body body 30 for suppressing at least the fire resistant cover material 42 from being deformed toward the outside in the expected direction among the covering means. Since the fixing portion 90 for fixing is provided, the deformation suppressing portion 80 can prevent the fire-resistant cover material 42 of the cover means from being deformed toward the outside in the expected direction, and the fire-resistant cover can be prevented from being deformed toward the outside in the expected direction. It becomes easy to prevent the material 42 from peeling off from the opening / closing body body 30. Further, the deformation suppressing portion 80 can be fixed to the opening / closing body main body 30 by the fixing portion 90, and the deformation suppressing portion 80 can be reliably functioned without falling off from the opening / closing body main body 30.

Further, the cover means is a fire-resistant cover material 42 arranged so as to come into contact with the finding surface of the opening / closing body body 30, and a first flammable cover material 41a located outside the fire-resistant cover material 42. A second flammable cover material 41b located between the first flammable cover material 41a that functions as a decorative plate and the fire-resistant cover material 42 and the first flammable cover material 41a, and functions as a base material. A part of the deformation suppressing portion 80 is located between the first combustible covering material 41a and the fire resistant covering material 42, and the deformation suppressing portion 80 is formed by laminating the second flammable cover material 41b. Since the deformation suppressing portion 80 is configured so that the other part can be fixed to the prospective surface of the opening / closing body body 30 by the fixing portion 90, the fireproof door 1 is expected to be in the fully closed state. Since the deformation suppressing portion 80 becomes less noticeable when viewed from the direction side, the design of the fireproof door 1 can be maintained.

Further, since the deformation suppressing portion 80 is formed in a plate-like body having a substantially U-shaped cross section, the deformation suppressing portion 80 has a simple structure, but a part of the deformation suppressing portion 80 is covered by the first means. While being positioned between the flammable cover material 41a and the fire resistant cover material 42, the other part of the deformation suppressing portion 80 can be fixed to the prospective surface of the opening / closing body body 30 by the fixing portion 90, and the deformation suppressing portion 80 can be fixed. Manufacturability can be improved.

Further, at least the opening / closing body body 30, the fire-resistant cover material 42 of the outdoor side finding surface cover portion 40a, and the fire-resistant cover material 42 of the indoor side finding surface cover portion 40b are sandwiched by the deformation suppressing portion 80. Since the deformation suppressing portion 80 is formed in the above, the deformation suppressing portion 80 is used to deform the fire-resistant cover material 42 of the outdoor side finding surface cover portion 40a and the fire resistance of the indoor side finding surface cover portion 40b. Deformation of the cover material 42 can be suppressed. Therefore, the number of deformation suppressing portions 80 to be installed can be reduced, and the installation cost of the opening / closing body 20 can be suppressed.

Further, the fire door 1 is provided in the opening 3 formed in the wall portion 2a of the building, and the peeling prevention portion 70 is provided over substantially the entire upper prospective surface located on the upper side of the prospective surface of the opening / closing body 20. Therefore, it is possible to effectively prevent the upper portion of the fire-resistant cover material 42 of the cover means from peeling off from the opening / closing body body 30 in the event of the fire, and the found surface of the opening / closing body body 30 is directly exposed to the flame of the fire. This makes it easier to prevent the opening / closing body body 30 from burning.

[III] Modifications to Embodiments The embodiments of the present invention have been described above, but the specific configurations and means of the present invention are within the scope of the technical idea of each invention described in the claims. , Can be arbitrarily modified and improved. Hereinafter, such a modification will be described.

(About the problem to be solved and the effect of the invention)
First, the problem to be solved by the invention and the effect of the invention are not limited to the above-mentioned contents, and the present invention solves a problem not described above or an effect not described above. It can also be played, and it may solve only some of the tasks described or play only some of the effects described.

(About shape, numerical value, structure, time series)
With respect to the components illustrated in the embodiments and drawings, the shapes, numerical values, or the interrelationships of the structures or time series of the plurality of components shall be arbitrarily modified and improved within the scope of the technical idea of the present invention. Can be done.

(About the opening and closing body)
In the above embodiment, it has been described that the opening / closing body 20 includes the locking device 22 and the door closer 23, but the present invention is not limited to this, and for example, the locking device 22 or the door closer 23 may be omitted. Here, when the door closer 23 is omitted, the accommodation space portion 24 can be omitted, and the notch portion of the indoor side piece 83 can also be omitted.

Further, in the above embodiment, it has been described that the door closer 23 is provided inside the opening / closing body body 30, but the present invention is not limited to this, and for example, outside the opening / closing body body 30, the upper end portion of the opening / closing body body 30 is provided. It may be provided so as to come into contact with. In this case, the accommodation space portion 24 can be omitted, and the notch portion of the indoor side piece 83 can also be omitted.

(About the opening and closing body)
In the above embodiment, it has been described that the opening / closing body body 30 includes the core material 32, but the present invention is not limited to this, and for example, the core material 32 may be omitted.

Further, in the above embodiment, it has been described that the opening / closing frame 31 of the opening / closing body 30 is configured by using a plurality of flammable frame materials, but the present invention is not limited to this, and for example, it has fire resistance. It may be constructed by using a plurality of frame materials.

(About the outdoor side finding surface cover part and the indoor side finding surface cover part)
In the above embodiment, it has been explained that the number of flammable cover materials 41 installed in the outdoor side finding surface cover portion 40a (or the indoor side finding surface cover portion 40b) is two, but the number is not limited to this, for example. It may be one or three or more. Further, in the above embodiment, it has been explained that the number of the fireproof cover material 42 installed in the outdoor side finding surface cover portion 40a (or the indoor side finding surface cover portion 40b) is one, but the present invention is not limited to this. For example, there may be two or more.

Further, in the above embodiment, it has been described that each of the outdoor side finding surface cover portion 40a and the indoor side finding surface cover portion 40b includes the fire resistant cover material 42 and the flammable cover material 41. Not limited to. For example, either the outdoor side finding surface cover portion 40a or the indoor side finding surface cover portion 40b includes a fire resistant cover material 42 and a flammable cover material 41, and the outdoor side finding surface cover portion 40a or the indoor side is provided. Either one or the other of the finding surface cover portion 40b may include only the flammable cover material 41. In this case, the peeling prevention portion 70 is configured to prevent either the outdoor side finding surface cover portion 40a or the indoor side finding surface cover portion 40b from peeling from the opening / closing body body 30.

Further, in the above embodiment, each of the outdoor side finding surface cover portion 40a and the indoor side finding surface cover portion 40b is a fire resistant cover material 42, a first flammable cover material 41a, and a second flammable cover material. It has been explained that it has 41b, but it is not limited to this. For example, as shown in FIG. 9, the first fire-resistant cover material 42a arranged so as to abut the found surface of the opening / closing body body 30 and the second fire-resistant cover material 42a located outside the first fire-resistant cover material 42a. A flammable cover material 41 located between the flammable cover material 42b, the first fire-resistant cover material 42a, and the second fire-resistant cover material 42b, and the flammable cover material 41 that functions as a base material. It may be configured to be laminated. In this case, the deformation suppressing portion 80 may be formed so as to sandwich the opening / closing body main body 30, the entire outdoor side finding surface cover portion 40a, and the entire indoor side finding surface cover portion 40b.

(About fire protection structure)
In the above embodiment, it has been described that the fireproof structure includes the second fireproof structure, but the present invention is not limited to this, and for example, the second fireproof structure may be omitted.

(About the first fire protection structure)
In the above embodiment, it has been explained that the peeling prevention portion 70 is provided on the upper side prospective surface of the opening / closing body 20, but the present invention is not limited to this, for example, the lower side prospective surface and the door end side prospective surface of the opening / closing body 20. , Or it may be provided on the door tail side prospective surface, or it may be provided on all of these prospective surfaces.

Further, in the above embodiment, it has been described that the peeling prevention portion 70 is provided over substantially the entire upper prospective surface of the opening / closing body 20, but the present invention is not limited to this, and for example, it is provided only on a part of the upper prospective surface. May be done.

Further, in the above embodiment, it has been described that the peeling prevention portion 70 includes the deformation suppressing portion 80 and the fixing portion 90, but the present invention is not limited to this. For example, the deformation suppressing portion 80 firmly sandwiches the opening / closing body body 30, the fire-resistant cover material 42 of the outdoor side finding surface cover portion 40a, and the fire-resistant cover material 42 of the indoor side finding surface cover portion 40b. In that case, the fixing portion 90 may be omitted. Further, as shown in FIG. 10, the fixing portion 90 is inserted into the outdoor side finding surface cover portion 40a (or the indoor side finding surface cover portion 40b) and the opening / closing body body 30 from the prospective direction side of the opening / closing body 20. If the fire-resistant cover material 42 of the outdoor side finding surface cover portion 40a (or the indoor side finding surface cover portion 40b) can be prevented from peeling off, the deformation suppressing portion 80 may be omitted. In this case, the refractory cover material 42 may be provided on the upper prospective surface of the opening / closing body body 30.

(About the deformation suppression part)
In the above embodiment, it has been described that the deformation suppressing portion 80 is formed in a steel plate-like body having a substantially U-shaped cross section, but the present invention is not limited to this. For example, as shown in FIG. 11, the fire-resistant cover material 42 of the outdoor side finding surface cover portion 40a or the indoor side finding surface cover portion 40b is formed by being formed into a plate-like body having an L-shaped cross section. The peeling of any one of the fire resistant cover materials 42 may be prevented.

(About fixed part)
In the above embodiment, it has been described that the fixing portion 90 is provided so as to be inserted into the prospective surface side piece 81 of the deformation suppressing portion 80 and the opening / closing body main body 30, but the present invention is not limited to this and is shown in FIG. As described above, the deformation suppressing portion 80 may be provided so as to be inserted into the outdoor side piece 82 (or the indoor side piece 83) and the opening / closing body body 30.

Further, in the above-described embodiment, it has been described that a plurality of fixing portions 90 are arranged at intervals along the front-rear direction and a plurality of fixed portions 90 are arranged at intervals along the left-right direction. Not limited to this. For example, only one may be arranged along the front-rear direction, or only one may be arranged along the left-right direction.

(About the second fire protection structure)
In the above embodiment, it has been described that the second fire prevention structure includes the second fire prevention structure on the door end side and the second fire prevention structure on the door tail side, but the present invention is not limited to this, and the second fire prevention structure on the door end side or the door Either one of the second fire protection structures on the buttock side may be omitted.

Further, in the above embodiment, it has been described that the door end side second fireproof structure (or the door end side second fireproof structure) includes the prospective surface side fireproof cover material 100 and the thermal expansion fireproof member 110. Not limited to this, for example, either one of the prospective surface side fireproof cover material 100 or the thermal expansion fireproof member 110 may be omitted.

(Additional note)
The opening / closing body for the fire door of Appendix 1 is an opening / closing body constituting the fire door provided at the opening of the building, and is a cover provided so as to cover the opening / closing body main body and the found surface of the opening / closing body main body. Means, which are a cover means in which a flammable cover material having flammability and a fire-resistant cover material having fire resistance are laminated in a prospective direction, and a peeling prevention means having fire resistance, which are provided by the opening / closing body. When a fire breaks out in the vicinity of the fire door in a fully closed state with the opening fully closed, peeling to prevent at least the fire resistant cover material from peeling from the opening / closing body main body among the covering means. Provided with preventive measures.

The opening / closing body for the fire door described in Appendix 2 is the opening / closing body for the fire door described in Appendix 1. In the peeling prevention means, at least the fire resistant cover material of the cover means is deformed toward the outside in the expected direction. It is provided with a deformation suppressing means for suppressing the deformation and a fixing means for fixing the deformation suppressing means to the opening / closing body body.

The opening / closing body for the fireproof door of Appendix 3 is the opening / closing body for the fireproof door described in Appendix 2, and the cover means is the fireproof cover material arranged so as to be in contact with the found surface of the opening / closing body. The first flammable cover material, which is a first flammable cover material located outside the fire-resistant cover material and functions as a decorative plate, the fire-resistant cover material, and the first flammable cover material. A second flammable cover material located between the two, which is formed by laminating a second flammable cover material that functions as a base material, and a part of the deformation suppressing means is the first flammable cover material. It is located between the fire-resistant cover material and the fire-resistant cover material, and the other part of the deformation suppressing means can be fixed to the prospective surface of the opening / closing body body by the fixing means. The deformation suppressing means was configured.

The opening / closing body for the fire door described in Appendix 4 is the opening / closing body for the fire door described in Appendix 3, wherein the deformation suppressing means is formed into a plate-like body having a substantially U-shaped cross section.

The opening / closing body for the fire door of Appendix 5 is the opening / closing body for the fire door described in Appendix 4, and the cover means is provided so as to cover one of the found surfaces of the opening / closing body. The cover means and the second cover means provided so as to cover any one of the finding surfaces of the opening / closing body body are included, and at least the opening / closing body body and the first cover means are provided by the deformation suppressing means. The deformation suppressing means was formed so that the fire-resistant cover material of the above and the fire-resistant cover material of the second cover means were sandwiched.

The opening / closing body for the fire door of Appendix 6 is the opening / closing body for the fire door according to any one of the items 1 to 5, wherein the fire door is provided in the opening formed in the wall portion of the building. , The peeling prevention means is provided over substantially the entire upper prospective surface located on the upper side of the prospective surface of the opening / closing body.

(Effect of appendix)
According to the opening / closing body for fire doors described in Appendix 1, it is a covering means provided so as to cover the found surface of the opening / closing body body, and is a flammable cover material having flammability and fire resistance having fire resistance. A cover means that is laminated in the prospective direction with the cover material, and a fire-resistant peeling prevention means. When a fire breaks out around the fire door in the fully closed state, at least the fire-resistant cover of the cover means Since it is provided with a peeling prevention means for preventing the material from peeling from the main body of the opening / closing body, the fire-resistant cover of the covering means is provided with a relatively large warp of the opening / closing body in the expected direction in the event of the above fire. Even if the material is easily peeled off from the main body of the opening / closing body, the peeling can be prevented by the peeling prevention means. Therefore, it is possible to prevent the opening / closing body from burning when the finding surface of the opening / closing body is directly exposed to the flame of the above-mentioned fire. Compared to the technology of simply covering with paper), it is possible to secure the fire protection performance of the fire door.

According to the opening / closing body for the fire door described in Appendix 2, the peeling prevention means is a deformation suppressing means for suppressing at least the fire-resistant cover material from being deformed toward the outside in the expected direction. Since the deformation suppressing means is provided with a fixing means for fixing the deformation suppressing means to the main body of the opening / closing body, it is possible to prevent the fire-resistant cover material of the covering means from being deformed toward the outside in the expected direction by the deformation suppressing means. Occasionally, it becomes easier to prevent the fire-resistant cover material from peeling off from the main body of the opening / closing body. Further, the deformation suppressing means can be fixed to the opening / closing body main body by the fixing means, and the deformation suppressing means can be reliably functioned without falling off from the opening / closing body main body.

According to the opening / closing body for the fireproof door described in Appendix 3, the covering means is located outside the fire-resistant cover material arranged so as to be in contact with the found surface of the opening / closing body body and the fire-resistant cover material. A first flammable cover material, which is a first flammable cover material that functions as a decorative plate, and a second flammable cover material that is located between the fire-resistant cover material and the first flammable cover material. , A second flammable cover material that functions as a base material is laminated, and a part of the deformation suppressing means is located between the first flammable cover material and the fire resistant cover material, and the deformation suppressing means. Since the deformation suppressing means is configured so that the other part can be fixed to the prospective surface of the opening / closing body body by the fixing means, it is viewed from the prospective direction side of the fireproof door in the fully closed state. As a result, the deformation suppressing means becomes less noticeable, so that the design of the fireproof door can be maintained.

According to the opening / closing body for the fire door described in Appendix 4, the deformation suppressing means is formed into a plate-like body having a substantially U-shaped cross section, so that the deformation suppressing means has a simple structure but is deformed. While a part of the means is positioned between the first flammable cover material of the cover means and the fire resistant cover material, the other part of the deformation suppressing means can be fixed to the prospective surface of the opening / closing body body by the fixing means. , The manufacturability of the deformation suppressing means can be improved.

According to the opening / closing body for the fire door described in Appendix 5, at least the opening / closing body main body, the fire-resistant cover material of the first cover means, and the fire-resistant cover material of the second cover means are sandwiched by the deformation suppressing means. As described above, since the deformation suppressing means is formed, the deformation of the fire-resistant cover material of the first cover means and the deformation of the fire-resistant cover material of the second cover means can be suppressed by using one deformation suppressing means. Therefore, the number of deformation suppressing means to be installed can be reduced, and the installation cost of the opening / closing body can be suppressed.

According to the opening / closing body for the fire door described in Appendix 6, the fire door is provided in the opening formed in the wall of the building, and the peeling prevention means is provided on the upper side of the prospective surface of the opening / closing body. Since it is provided over substantially the entire prospective surface, it is possible to effectively prevent the upper portion of the fire-resistant cover material of the covering means from peeling off from the opening / closing body body in the event of the above fire, and the found surface of the opening / closing body body is the flame of the fire. It becomes easier to avoid burning the opening / closing body body by being directly exposed to.

1 Fire door 2 Frame 2a Wall 2b Floor 3 Opening 4 Door tip side gap 10 Frame body 11 Door tail side vertical frame material 11a Vertical frame material body 11b Vertical frame material side fixing material 11c Vertical frame material side airtight part 11d Vertical Frame material side recess 11e Vertical frame material side airtight recess 12 Door tip side vertical frame material 13 Upper horizontal frame material 13a Upper horizontal frame material body 14 Scraping horizontal frame material 14a Lower horizontal frame material body 20 Opening and closing body 21 Handle part 22 Locking Equipment 23 Door closer 23a Main body 23b Arm 24 Storage space 30 Opening and closing body 31 Opening and closing frame 31a Door tail side vertical frame material 31b Door end side vertical frame material 31c Upper horizontal frame material 31d Lower horizontal frame material 32 Core material 40a Outdoor side found surface cover part 40b Indoor side found surface cover part 41 Combustible cover material 41a 1st flammable cover material 41b 2nd flammable cover material 42 Fire resistant cover material 42a 1st fire resistant cover material 42b 2nd fire resistant Sex Cover material 50a Door tail side prospective surface cover part 50b Door front side prospective surface cover part 60 Hing part 70 Peeling prevention part 80 Deformation suppression part 81 Expected surface side piece 82 Outdoor side piece 83 Indoor side side piece 90 Fixed part 100 Expected surface side fire resistant cover material 110 Thermal expansion fire resistant member

Claims (6)

An opening and closing body that constitutes a fire door installed at the opening of a building.
Opening and closing body and
A cover means provided so as to cover the finding surface of the opening / closing body body, wherein the flammable cover material having flammability and the fireproof cover material having fire resistance are laminated in the prospective direction. ,
It is a peeling prevention means having fire resistance, and when a fire breaks out in the vicinity of the fire door in a fully closed state in which the opening is fully closed by the opening / closing body, at least the fire resistant cover material among the cover means. A peeling prevention means for preventing the opening and closing body from peeling off
An opening and closing body for fire doors. The peeling prevention means is
Of the cover means, at least the deformation suppressing means for suppressing the deformation of the fireproof cover material toward the outside in the expected direction, and
A fixing means for fixing the deformation suppressing means to the opening / closing body main body is provided.
The opening / closing body for a fire door according to claim 1. The covering means
The fire-resistant cover material arranged so as to come into contact with the finding surface of the opening / closing body body,
A first flammable cover material located outside the fire-resistant cover material, which functions as a decorative board, and a first flammable cover material.
A second flammable cover material located between the fire-resistant cover material and the first flammable cover material, which is a second flammable cover material functioning as a base material, is laminated.
A part of the deformation suppressing means is located between the first flammable cover material and the fire resistant cover material, and another part of the deformation suppressing means is relative to the prospective surface of the opening / closing body. The deformation suppressing means is configured so that it can be fixed by the fixing means.
The opening / closing body for a fire door according to claim 2. The deformation suppressing means is formed in a plate-like body having a substantially U-shaped cross section.
The opening / closing body for a fire door according to claim 3. The covering means
A first cover means provided so as to cover one of the finding surfaces of the opening / closing body body, and
Including a second cover means provided so as to cover any one of the found surfaces of the opening / closing body body.
The deformation suppressing means is formed so that at least the opening / closing body, the fire-resistant cover material of the first cover means, and the fire-resistant cover material of the second cover means are sandwiched by the deformation suppressing means. did,
The opening / closing body for a fire door according to claim 4. The fire door is provided in the opening formed in the wall of the building.
The peeling prevention means is provided over substantially the entire upper prospective surface located on the upper side of the prospective surface of the opening / closing body.
The opening / closing body for a fire door according to any one of claims 1 to 5.

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