JP7236903B2 - door device - Google Patents

Description

TECHNICAL FIELD The present invention relates to a door device having heat shielding performance.

In recent years, fire doors are required not only to have fireproof performance, but also to have heat shielding performance to prevent heat transfer from the fire side to the non-fire side, which is harmful during evacuation.

A fire door consists of a door body and a door frame. Due to the structure of opening and closing the door body, there must be a gap between the door body and the door frame when the door body is in the fully closed position. Therefore, in the event of a fire, the hot air on the fire side blows out to the non-fire side, leading to an increase in the temperature of the non-heated side. In addition, the dust (gap) may spread further due to the warp of the door due to the heat of the fire. Here, one of the factors leading to the temperature rise on the non-heated surface side is heating of the edge surface (typically the upper surface) of the door body. When the fore-end surface is heated by direct flame, it is considered that heat is received from the opposite frame side through dust (gap).

There are precedents for closing desired gaps in the event of a fire by using a thermally expandable fire-resistant material, so-called thermally foamed material, but this is intended to directly suppress the heating of the edge of the door (typically the upper surface). isn't it.
JP 2014-118714 JP 2015-92060

The purpose of the present invention is to suppress the temperature rise on the non-fire side due to heat from the door frame and hot air from dust (gap) by suppressing heating of the edge surface (typically the upper surface) of the door body. and

The technical means adopted by the present invention to solve such problems is
a quadrilateral frame;
a surface material fixed to the quadrilateral frame;
a door body comprising
A door device comprising a door frame,
The door body has a four-circumferential projection surface made up of the surface material portion,
The door frame has a four-circumferential projection surface facing the projection surface of the door body when the opening is fully closed,
A heat insulating material is provided on at least a part of the projected surface of the door body, and when the opening is fully closed, the heat insulating material faces at least a part of the projected surface of the door frame with a gap therebetween. do,
It is a door device.
In one aspect, at least part of the prospective surface of the door body is an upper surface, and a heat insulating material is provided on the upper surface,
at least a portion of the prospective surface of the door frame is a lower surface of the upper frame;
When the opening is fully closed, the heat insulating material and the lower surface of the upper frame of the door frame face each other with a gap therebetween.
a quadrilateral frame;
a surface material fixed to the quadrilateral frame;
a door body comprising
A door device comprising a door frame,
The door body has an upper surface made of the surface material, and a heat insulating material is provided on the upper surface. When the opening is fully closed, a gap exists between the heat insulating material and the lower surface of the upper frame of the door frame. opposite,
door device.
In one technical means of the present invention, the heat insulating material is provided on the upper surface of the door body. material may be provided. For example, the door body has an upper surface, a projected surface on the door tip side, a projected surface on the trailing end side, and a lower surface, which are made up of the surface material portion, and at least the upper surface is provided with a heat insulating material so that when the opening is fully closed, , the heat insulating material and the lower surface of the upper frame of the door frame face each other with a gap; A heat insulator may be provided.
Alternatively, in one aspect, at least part of the prospective surface of the door body is a door tip-side prospective surface, and the door tip-side prospective surface is provided with a heat insulating material,
at least a part of the projected surface of the door frame is the projected surface of the door leading side vertical frame;
When the opening is fully closed, the heat insulating material and the prospective surface of the door leading side vertical frame of the door frame are opposed to each other with a gap therebetween.

In one aspect, at least one of the heat insulating material and at least a portion of the prospective surface facing the heat insulating material is provided with a thermal expansion fire-resistant member, and when the opening is fully closed, the thermal expansion fire-resistant member is placed in the gap. Located in
In one aspect, a thermal expansion fireproof member is provided on at least one of the upper surface of the heat insulating material and the lower surface of the upper frame, and the thermal expansion fireproof member is positioned in the gap when the opening is fully closed.
In one aspect, a thermal expansion refractory member is provided on the upper surface of the heat insulating material, and a gap is formed between the thermal expansion refractory member and the lower surface of the upper frame.

In one aspect, the upper end portion of the viewing surface on the open side of the door body is a projecting piece formed from the surface material portion,
The upper frame is formed with a viewing surface on which the projecting pieces face each other with a gap when the opening is fully closed,
The thermal expansion refractory member is provided on the upper surface of the heat insulating material so as to face the lower surface of the upper frame and at least partially face the gap between the projecting piece and the viewing surface when the opening is fully closed. It is provided.
In one aspect, the open-side ends of the heat insulating material and the thermal expansion refractory member extend to reach the base ends of the projecting pieces.

In one aspect, the upper end portion of the both facing surfaces of the door body is a projecting piece formed from the surface material portion,
The heat insulating material is provided between the upper surface of the door body formed from the surface material portion and the two projecting pieces,
When the opening is fully closed, the thermal expansion fireproof member provided on the upper surface of the heat insulating material faces the lower surface of the upper frame.
In one aspect, the upper surface of the heat insulating material is positioned lower than the upper ends of the two projecting pieces, and the thermal expansion refractory member is positioned substantially at the same level as or lower than the upper ends of the two projecting pieces. It is in.

Another technical means adopted by the present invention is
a quadrilateral frame;
a surface material fixed to the quadrilateral frame;
a door body comprising
A door device comprising a door frame,
The door body has a four-circumferential projection surface made up of the surface material portion,
The door frame has a four-circumferential projection surface facing the projection surface of the door body when the opening is fully closed,
A heat insulating material is provided on at least a portion of the projected surface of the door frame, and the heat insulating material faces at least a portion of the projected surface of the door body with a gap when the opening is fully closed. do,
door device.
In one aspect, at least a portion of the prospective surface of the door frame is a lower surface of an upper frame, and the lower surface is provided with a heat insulating material;
At least part of the prospective surface of the door body is an upper surface,
When the opening is fully closed, the heat insulating material and the upper surface of the door face each other with a gap therebetween.
a quadrilateral frame;
a surface material fixed to the quadrilateral frame;
a door body comprising
A door device comprising a door frame,
The door has an upper surface made of the surface material,
A heat insulating material is provided on the lower surface of the upper frame of the door frame, and when the opening is fully closed, the heat insulating material and the upper surface face each other with a gap.
door device.
In one aspect, at least one of the heat insulating material and at least a portion of the prospective surface facing the heat insulating material is provided with a thermal expansion fire-resistant member, and when the opening is fully closed, the thermal expansion fire-resistant member is placed in the gap. Located in
In one aspect, at least one of the lower surface of the heat insulating material and the upper surface of the door body is provided with a thermal expansion fireproof member, and the thermal expansion fireproof member is positioned in the gap when the opening is fully closed.

In one technical means of the present invention, the heat insulating material is provided on the upper surface of the door body. material may be provided. When the opening is fully closed, the heat insulating material provided on the prospective surfaces of the door body (door tip side prospective surface, door bottom side prospective surface, lower surface) and the corresponding prospective surface of the door frame (door tip side vertical frame prospective surface) , the projected surface of the door bottom side vertical frame, and the upper surface of the lower frame) face each other with a gap therebetween. That is, the heat shielding structure for the upper portion of the door body of the door device may be adopted as the heat shielding structure for the door tip side portion, the door bottom side portion, and the lower portion of the door body.
In addition to the upper surface of the door body, when at least one of the door tip side prospective surface, the door bottom side prospective surface, and the lower surface is provided with a heat insulating material, at least one of the opposing heat insulating material and the door frame prospective surface is provided with A thermal expansion refractory member may be provided, and when the opening is fully closed, the thermal expansion refractory member may be positioned in the gap between the opposing heat insulating material and the facing surface of the door frame.

In one aspect, the door frame is hollow, and at least the upper frame is filled with a filler made of a material containing crystal water or free water.
Examples of such materials include gypsum, aluminum hydroxide, sodium silicate, alum, and mica.
In one aspect, the material is gypsum and the filler is a filler comprising gypsum.
In one aspect, the entire hollow portion of the door frame is filled with a filler containing gypsum.
The gypsum filled in the door frame contains water of crystallization, and the temperature rise of the door frame and surroundings can be suppressed by the absorption of heat accompanying the evaporation of the water of crystallization due to the heat of the fire.
In one aspect, the heat shield door includes a core material having heat insulation performance and fire resistance performance filled in a space surrounded by the surface material.

In the present invention, by providing a heat insulating material on at least a part of the expected surface of the door (for example, the upper surface), the heat received from at least a part of the expected surface (for example, the upper frame surface) due to the heat shielding effect of the heat insulating material. and the heat of high-temperature gas (flame or smoke) entering through the gap between the door body and the door frame (e.g., upper frame) is suppressed from being transferred to at least a part of the expected surface of the door body (e.g., the upper surface of the door body) .
By suppressing heating of the prospective surface (eg, upper end surface) of the door body in the event of a fire, thermal deformation of the end portion (eg, upper end portion) of the door body can be suppressed.
Furthermore, by providing a thermal expansion fireproof member positioned in the gap between the door frame (for example, the upper frame) and the door body, the gap is closed in the event of a fire, and flames and smoke (high temperature) pass through the gap from the fire side to the non-fire side. gas) is prevented from entering. Even if the door body is thermally deformed and the gap becomes large, the gap can be satisfactorily closed by the thermal expansion fireproof member.

It is the front view which looked at the door apparatus which concerns on this embodiment from the outdoor side. They are a front view, a top view, a side view, a side view, and a bottom view of the door body 2 as seen from the inside of the door. FIG. 3 is a partially enlarged view of FIG. 2; 1 is a cross-sectional view of a door device according to this embodiment; FIG. 1 is a longitudinal sectional view of a door device according to this embodiment; FIG. FIG. 4 is a vertical cross-sectional view of the upper portion of the door apparatus according to the present embodiment, showing a state in which the thermally expandable fireproof member is foamed and expanded by heating during a fire. It is a longitudinal cross-sectional view of the upper part of the door apparatus which concerns on other embodiment. FIG. 7 shows a state in which the thermal expansion refractory member has foamed and expanded due to heating during a fire. FIG. 10 is a vertical cross-sectional view of an upper portion of a door device according to still another embodiment; FIG. 9 shows a state in which the thermal expansion refractory member is foamed and expanded by heating during a fire. FIG. 10 is a vertical cross-sectional view of an upper portion of a door device according to still another embodiment; It is a longitudinal cross-sectional view of the upper portion of the door device according to the reference embodiment. FIG. 12 shows a state in which the thermally expansive fireproof member has foamed and expanded due to heating during a fire. It is a partial top view of the upper frame which concerns on this embodiment. It is a figure explaining the shape of the upper frame which concerns on this embodiment. FIG. 4 is a diagram for explaining the combination of the heat-receiving surface of the upper frame and the amount of gypsum filled inside, and the heat shielding effect of the upper frame.

FIG. 1 is a front view of the door device according to the embodiment as seen from the outside of the room. The door device includes a vertical rectangular door frame 1 and a door body 2 for opening and closing an opening formed by the door frame 1. As shown in FIG. consists of In this embodiment, the door frame 1 is a heat insulating door frame, the door body 2 is a heat insulating door, and the door device is used as a fire door. The door frame 1 is a four-peripheral frame formed in a vertical rectangular shape from an upper frame 10, a lower frame 11, a door front side vertical frame 12, and a door bottom side vertical frame 13. - 特許庁

[A] Configuration of Door Body The configuration of the door body will be described. 2 is a front view, a top view, a side view, a side view, and a bottom view of the door body 2 as seen from the inside of the room, and FIG. 3 is a partially enlarged view of FIG. is. FIG. 4 is a cross-sectional view of the door device (door body 2 is in the fully closed position), and FIG. 5 is a vertical cross-sectional view of the door device (door body 2 is in the fully closed position). The door 2 includes a metal (typically steel) surface material forming the outer surface of the door 2, a metal (typically steel) aggregate, and an internal space of the door 2. Filled core materials (peripheral refractory core materials 7A to 7H, refractory core materials 7I and 7J, main refractory core material C).

[A-1] Surface material of door body As shown in FIGS. 1 to 5, the surface material of the door body 2 according to the present embodiment includes a first surface material 20 and a second surface material which are formed by bending into a predetermined shape. 21. The first surface member 20 is formed by bending a thin steel plate. , a lower side 202 , a first side 203 and a second side 204 . In the following description, the main surface portion 200 of the first surface member 20 that constitutes the door 2 as one component of the door 2 is referred to as a first viewing surface 200 .

In this embodiment, the upper end portion of the main surface portion (first viewing surface) 200 of the first surface member 20 is an upper projecting piece 22 formed by folding and crushing the portion of the first surface member 20 . Further, the leading edge side portion of the main surface portion (first facing surface) 200 of the first surface member 20 is a leading edge side projecting piece 23 formed by folding and crushing the portion of the first surface member 20 . As will be described later, when the door body 2 is in the fully closed position, the upper projecting piece 22 and the door leading edge side projecting piece 23 are located on the outdoor side of the gaps between the upper surface of the door body 2 and the upper frame 10 of the door frame 1, respectively. , and cover the outdoor part of the gap between the door tip side projection surface and the door tip side vertical frame 12 of the door frame 1. - 特許庁

The second surface member 21 is formed by bending a thin steel plate. , a lower side 212 , a first side 213 and a second side 214 . In the following description, the main surface portion 210 of the second surface member 21 that constitutes the door 2 as one component of the door 2 is referred to as a second viewing surface 210 .

The upper surface of the door 2 is formed from the upper edge 201 of the first surface member 20 and the upper edge 211 of the second surface member 21 , and the lower edge 202 of the first surface member 20 and the lower edge 212 of the second surface member 21 form the door 2 . The bottom surface of the door body 2 is formed from the first side edge 203 of the first surface member 20 and the first side edge 213 of the second surface member 21, and the front side projection surface of the door 2 is formed. The second side edge 204 of the material 20 and the second side edge 214 of the second surface material 21 form a projected surface of the door body 2 on the door bottom side.

In this embodiment, the upper end portion of the main surface portion (first viewing surface) 200 of the first surface member 20 forms an upper projecting piece 22 that extends upward beyond the upper surface. That is, an upper projecting piece 22 is formed on the outdoor side portion of the upper surface of the door 2 . In this embodiment, a heat insulating material 8 and a thermal expansion fireproof member 9 are further provided on the upper surface of the door 2 . Specific configurations of the heat insulating material 8 and the thermal expansion fireproof member 9 will be described later. A door tip side portion of a main surface portion (first viewing surface) 200 of the first surface member 20 forms a door tip side protruding piece 23 extending toward the door tip side beyond the door tip side prospective surface. That is, a door tip-side projecting piece 23 is formed on the outdoor part of the door tip-side projection surface of the door body 2 .

[A-2] Aggregate of the door body The aggregate of the door body 2 according to the present embodiment is composed of the upper frame 3, the lower frame 4, the door front side vertical frame 5, and the door bottom side vertical frame 6, which form the ribs. and a central vertical frame 5' as a central frame. In addition, the ribs are optional elements, and if the predetermined strength of the door body 2 can be ensured by selecting the material of the main refractory core material, etc., the ribs may not be provided.

The upper frame 3 of the door 2 is an elongated member that extends horizontally in the width direction of the door 2, and is U-shaped in cross section from a first viewing surface portion 30, a second viewing surface portion 31, and an upper surface portion 32. formed in the shape of The lower frame 4 of the door 2 is an elongated member that extends horizontally in the width direction of the door 2, and is composed of a first viewing surface portion 40, a second viewing surface portion 41, and a lower surface portion 42. formed in the shape of The door tip side vertical frame 5 of the door 2 is a long member extending perpendicularly to the height direction of the door 2, and is composed of a first viewing surface portion 50, a second viewing surface portion 51, and a viewing surface portion 52. It is formed in a U shape in cross section. The door leading side vertical frame 5 is partially notched to receive locks (first, second and third locks to be described later). Door trailing side vertical frame 6 of door 2 is a long member extending perpendicularly to the height direction of door 2, and is composed of first viewing surface portion 60, second viewing surface portion 61, and viewing surface portion 62. It is formed in a U shape in cross section.

Fire-resistant and heat-insulating fillers (for example, gypsum and rock wool) are placed in the recesses of the four-circumferential frames (upper frame 3, lower frame 4, vertical frame 5 on door side, vertical frame 6 on door bottom side). may be provided. For example, by pouring gypsum into the recesses of the four-circumferential frame and solidifying it, it is possible to improve the strength of each frame (strength frame). Due to the heat absorption effect associated with this, it is possible to suppress the temperature rise of the quadrilateral frame and the periphery of the frame.

In the present embodiment, the estimated dimensions of the four-circumferential frames forming the ribs, that is, the estimated dimensions of the upper frame 3, the lower frame 4, the door tip side vertical frame 5, and the door bottom side vertical frame 6 are It has a dimension smaller than the estimated dimension (thickness), and between the first surface material 20 and the quadrilateral frame, and between the second surface material 21 and the quadrilateral frame, peripheral refractory core materials 7A to 7H is provided. By sandwiching the peripheral refractory core materials 7A to 7H between the metal first surface material 20 and the second surface material 21 and the metal four-circumference frame, the door body 2 can be separated from one side of the door body 2 to the other side. It suppresses heat transfer to the viewing surface.

The middle vertical frame 5' of the door 2 is a long member extending perpendicularly to the height direction of the door 2, and includes a first viewing surface portion 50', a second viewing surface portion 51', and a viewing surface portion 52'. It is formed to have a U-shape in cross section. In this embodiment, the projected dimension of the middle vertical frame 5' forming the middle rib is smaller than the projected dimension (thickness) of the door body 2, and the first surface member 20 and the middle vertical frame 5' Refractory core members 7I and 7J are provided between the second surface member 21 and the middle vertical frame 5'. By sandwiching the refractory core members 7I and 7J between the metal first surface member 20 and the second surface member 21 and the metal middle vertical frame 5', the door body 2 can be opened from one side to the other side. It suppresses heat transfer to the viewing surface. A fire-resistant and heat-insulating filler (for example, gypsum or rock wool) may be filled in the concave portion of the middle vertical frame 5'.

[A-3] Peripheral Refractory Core Peripheral refractory cores 7A to 7H are provided between the first surface member 20 and the second surface member 21 of the door 2 and the four-circumferential frame. In this embodiment, the peripheral refractory core material is a refractory core material 7A provided between the first surface material 20 and the upper frame 3, and a refractory core material 7B provided between the second surface material 21 and the upper frame 3. , the fireproof core material 7C provided between the first surface material 20 and the lower frame 4, the fireproof core material 7D provided between the second surface material 21 and the lower frame 4, the first surface material 20 and the door end side Fireproof core material 7E provided between vertical frame 5, fireproof core material 7F provided between second surface material 21 and front side vertical frame 5, first surface material 20 and door bottom side vertical frame 6 A fireproof core material 7G provided between them and a fireproof core material 7H provided between the second surface material 21 and the door tail side vertical frame 6 are included. By sandwiching the refractory core members 7A to 7H between the metal first surface member 20, the second surface member 21, and the four-circumferential metal frame, the door body 2 can be viewed from one side to the other. It suppresses heat transfer to the attached surface. The peripheral refractory core materials 7A to 7H (the same applies to the refractory core materials 7I and 7J) are formed of, for example, a calcium silicate plate, but a plate formed of another material having heat insulation (heat shielding) and fire resistance. Body may be adopted.

[A-4] Configuration of the edge of the door [A-4-1] Configuration of the upper portion of the door As shown in FIG. A refractory core member 7A is provided between the upper portion of the attachment surface 200 and the first viewing surface portion 30 of the upper frame 3, and the upper portion of the second viewing surface 210 of the second surface member 21 and the upper portion. A refractory core material 7B is provided between the frame 3 and the second viewing surface portion 31 thereof. By sandwiching the refractory core materials 7A and 7B between the first surface material 20 and the upper frame 3 and between the second surface material 21 and the upper frame 3, respectively, the first surface material 20, the second surface material 21 and the upper frame 3 , and prevents direct heat transfer from the first surface member 20 to the upper frame 3 or from the second surface member 21 to the upper frame 3 .

The upper side 201 of the first surface member 20 and the upper surface of the refractory core 7A are in contact, and the upper side 211 of the second surface member 21 and the upper surface of the refractory core 7B are in contact. The height positions of the upper surface of the refractory core material 7A and the upper surface of the refractory core material 7B are positioned slightly above the outer surface of the upper surface portion 32 of the upper frame 3. A thermal expansion fireproof member 320 is provided between the upper edge 211 of the surface material 21 and the upper surface portion 32 of the upper frame 3, and the upper edge 201 of the first surface material 20 and the upper edge 211 of the second surface material 21 and the upper frame. The upper surface part 32 of 3 does not contact directly. The upper surface of the refractory core material 7A, the upper surface of the refractory core material 7B, and the outer surface of the upper surface portion 32 of the upper frame 3 may be flush with each other, and a thermal expansion refractory member may be provided over these surfaces.

The upper edge 201 of the first surface member 20 is fixed to the upper surface portion 32 of the upper frame 3 by screws 29 . The screws 29 pass through the thermally expansible refractory member 320, and if filled with gypsum, the shanks of the screws 29 are screwed into the gypsum. The upper edge 211 of the second surface member 21 is fixed to the upper surface portion 32 of the upper frame 3 by screws 29 . The screws 29 pass through the thermally expansible refractory member 320, and if filled with gypsum, the shanks of the screws 29 are screwed into the gypsum. The edge of the upper side 201 of the first surface member 20 and the edge of the upper side 211 of the second surface member 21 are separated from each other, and the portion of the thermal expansion fireproof member 320 is exposed.

As shown in FIGS. 2, 3, and 5, a long plate-shaped heat insulating material 8 is provided on the upper surface of the door 2 across the width of the door 2. As shown in FIGS. The material forming the heat insulating material 8 is not limited as long as it has predetermined fire resistance and heat insulating properties. , fiber reinforced cement board, other insulating refractory core materials, or combinations thereof, and may also include other refractory or insulating materials. The heat insulating material 8 is provided on the upper side (outside) of the upper sides 201 and 211 forming the upper surface of the door 2 . In the present embodiment, the longitudinal ends 80 and 81 of the heat insulating material 8 do not reach the longitudinal ends of the upper surface (front end side projected surface and door rear end projected surface of the door 2) (Fig. 2, See Figure 3). One end 82 of the heat insulating material 8 in the widthwise direction is in contact with the lower end portion of the inner surface of the upper projecting piece 22, and the other end 83 is the indoor side end in the widthwise direction of the door 2 (door The second viewing surface 210) of the body 2 is not reached. That is, in this embodiment, the heat insulating material 8 is positioned on the upper side 201 positioned directly above the refractory core 7A, and the heat insulating material 8 is positioned on the upper side 211 positioned directly above the refractory core 7B. not located. In addition, the heat insulating material 8 may extend over the upper side 211 located directly above the refractory core material 7B.

A heat-expandable fire-resistant member 9 is provided on the upper surface of the heat insulating material 8 to expand and expand when heated in the event of a fire. In this embodiment, the thermal expansion fireproof member 9 is provided over the entire upper surface of the heat insulating material 8 . In this embodiment, a plurality of fixing pieces 90 are placed on the upper surface of the door 2 (upper side 201 , upper side 211) and the fixing piece 90 with the heat insulating material 8 and the thermal expansion fire resistant member 9 interposed therebetween, the screw 29' is screwed into the fixing piece 90, so that the shaft portion of the screw 29' attaches to the thermal expansion fire resistant member 9. , the heat insulating material 8 , the upper edge 201 of the first surface member 20 to the upper edge 211 of the second surface member 21 , and fixed to the upper surface portion 32 of the upper frame 3 . If filled with gypsum, the shank of the screw 29' is screwed into the gypsum. In this embodiment, the thermal expansion fireproof member 320 is employed as a spacer for preventing direct contact between the upper side 201 and upper side 211, which are metal members, and the upper surface portion 32. In this embodiment, however, the upper surface of the door 2 The thermal expansion fireproof member 320 partially exposed to the outside is covered with the heat insulating material 8, and the thermal expansion fireproof member 9 is provided on the upper surface of the heat insulating material 8, so instead of the thermal expansion fireproof member 320, the fireproof A spacer made of a material having a lower thermal conductivity than metal may be provided. The upper projecting piece 22 of the door 2 also functions as a blind for the heat insulating material 8 and the thermal expansion fireproof member 9 provided on the upper surface of the door 2 .

[A-4-2] Construction of the Lower End of the Door As shown in FIG. A refractory core member 7C is provided between the first viewing surface portion 40 and between the portion below the second viewing surface 210 of the second surface member 21 and the second viewing surface portion 41 of the lower frame 4. A refractory core material 7D is provided at the position. By sandwiching the refractory core materials 7C and 7D between the first surface material 20 and the lower frame 4 and between the second surface material 21 and the lower frame 4, the first surface material 20, the second surface material 21 and the lower frame 4 , and prevents direct heat transfer from the first surface member 20 to the lower frame 4 or from the second surface member 21 to the lower frame 4 .

The lower side 202 of the first surface member 20 and the lower surface of the refractory core 7C are in contact, and the lower side 212 of the second surface member 21 and the lower surface of the refractory core 7D are in contact. The height positions of the lower surface of the refractory core material 7C and the lower surface of the refractory core material 7D are positioned slightly below the outer surface of the lower surface portion 42 of the lower frame 4. A thermal expansion fireproof member 420 is provided between the lower side 212 of the surface material 21 and the lower surface portion 42 of the lower frame 4, and the lower side 202 of the first surface material 20 and the lower side 212 of the second surface material 21 and the lower frame 4 are not in direct contact with each other. The lower surface of the refractory core material 7C, the lower surface of the refractory core material 7D, and the outer surface of the lower surface portion 42 of the lower frame 4 may be flush with each other, and a thermal expansion refractory member may be provided over these surfaces. The lower side 202 of the first surface member 20 is fixed to the lower surface portion 42 of the lower frame 4 by screws 29 . The screws 29 pass through the thermally expansible refractory member 420, and if filled with gypsum, the shanks of the screws 29 are screwed into the gypsum. A lower side 212 of the second surface member 21 is fixed to the lower surface portion 42 of the lower frame 4 by screws 29 . The screws 29 pass through the thermally expansible refractory member 420, and if filled with gypsum, the shanks of the screws 29 are screwed into the gypsum. The edge of the lower side 202 of the first surface member 20 and the edge of the lower side 212 of the second surface member 21 are separated from each other, and the portion of the thermal expansion fireproof member 420 is exposed.

[A-4-3] Construction of Door Tip Side End of Door Body As shown in FIG. A refractory core material 7E is provided between the portion and the outer surface of the first viewing surface portion 50 of the door tip side vertical frame 5, and the door tip side portion of the second viewing surface 210 of the second surface member 21 is provided. and the outer surface of the second facing surface portion 51 of the vertical frame 5 on the side of the door, a refractory core material 7F is provided. By sandwiching the refractory core materials 7E and 7F between the first surface material 20 and the door tip side vertical frame 5 and between the second surface material 21 and the door tip side vertical frame 5, respectively, the first surface material 20 and the second surface material Direct contact between 21 and the door leading edge side vertical frame 5 is regulated, and heat is directly transmitted from the first surface member 20 to the door leading edge side vertical frame 5 or from the second surface material 21 to the door leading edge side vertical frame 5. prevent you from doing so.

The first side 203 of the first surface member 20 and the projected surface of the refractory core 7E are in contact, and the first side 213 of the second surface member 21 and the projected surface of the refractory core 7F are in contact. The projected surface of the refractory core material 7E and the projected surface of the refractory core material 7F are located slightly closer to the door end than the outer surface of the projected surface portion 52 of the door end-side vertical frame 5, and the first surface material 20 is located. A thermal expansion fireproof member 520 is provided between the first side 203 and the first side 213 of the second surface material 21 and the projection surface portion 52 of the door leading side vertical frame 5 . The first side edge 203 and the first side edge 213 of the second surface material 21 and the projection surface portion 52 of the door leading edge side vertical frame 5 are designed not to come into direct contact with each other. The projected surface of the refractory core material 7E, the projected surface of the refractory core material 7F, and the outer surface of the projected surface portion 52 of the door-end vertical frame 5 may be flush with each other, and a thermal expansion fireproof member may be provided over these surfaces. .

A first side edge 203 of the first surface member 20 is fixed to the projected surface portion 52 of the door leading side vertical frame 5 with a screw 29 . The screws 29 pass through the thermal expansion refractory member 520, and when filled with gypsum, the shanks of the screws 29 are screwed into the gypsum. The first side edge 213 of the second surface member 21 is fixed to the projected surface portion 52 of the door-end vertical frame 5 with a screw 29 . The screws 29 pass through the thermal expansion refractory member 520, and if filled with gypsum, the shafts of the screws 29 are screwed into the gypsum. The edge of the first side 203 of the first surface member 20 and the edge of the first side 213 of the second surface member 21 are separated from each other, and the portion of the thermal expansion fireproof member 520 is exposed.

[A-4-4] Construction of Door Bottom Side End of Door Body As shown in FIG. A fireproof core material 7G is provided between the portion and the first facing surface portion 60 of the door trailing side vertical frame 6, and the door trailing side portion of the second facing surface 210 of the second surface member 21 and the door. A refractory core material 7H is provided between the rear side vertical frame 6 and the second facing surface portion 61. - 特許庁The first surface material 20 and the second surface material are sandwiched between the first surface material 20 and the door tail side vertical frame 6, and between the second surface material 21 and the door tail side vertical frame 6, respectively. Direct contact between 21 and door trailing side vertical frame 6 is restricted, and heat is directly transmitted from first surface member 20 to door trailing side vertical frame 6 or from second surface member 21 to door trailing side vertical frame 6. prevent you from doing so.

The second side 204 of the first surface member 20 and the projected surface of the refractory core 7G are in contact, and the second side 214 of the second surface member 21 and the projected surface of the refractory core 7H are in contact. The projected surface of the refractory core material 7G and the projected surface of the refractory core material 7H are positioned slightly closer to the door trailing edge than the outer surface of the projected surface portion 62 of the door trailing-side vertical frame 6. A thermal expansion refractory member 620 is provided between the second side 204 and the second side 214 of the second surface material 21 and the projected surface portion 62 of the door trailing side vertical frame 6 . The second side edge 204 and the second side edge 214 of the second surface member 21 and the projected surface portion 62 of the door tail side vertical frame 6 are designed not to come into direct contact with each other. The projected surface of the refractory core material 7H, the projected surface of the refractory core material 7G, and the external surface of the projected surface portion 62 of the door bottom-side vertical frame 6 may be flush with each other, and a thermal expansion fireproof member may be provided over these surfaces. .

The second side edge 204 of the first surface member 20 is fixed to the projected surface portion 62 of the door bottom-side vertical frame 6 with screws 29 . The screws 29 pass through the thermally expandable refractory member 620, and if filled with gypsum, the shanks of the screws 29 are screwed into the gypsum. The second side edge 214 of the second surface member 21 is fixed to the projected surface portion 62 of the door bottom-side vertical frame 6 with screws 29 . The screws 29 pass through the thermally expandable refractory member 620, and if filled with gypsum, the shanks of the screws 29 are screwed into the gypsum. The edge of the second side 204 of the first surface member 20 and the edge of the second side 214 of the second surface member 21 are separated from each other, and the portion of the thermal expansion fireproof member 620 is exposed.

[A-5] Main refractory core material of the door body The heat-insulating refractory core materials filled in the inner space of the door body 2 according to the present embodiment are peripheral refractory core materials 7A to 7H and refractory core materials 7I and 7J. , and a main refractory core C occupying the major volume of the interior space. As described above, the refractory core members 7A to 7J are composed of aggregates (upper frame 3, lower frame 4, door front side vertical frame 5, door bottom side vertical frame 6, middle vertical frame 5′) and first surface member 20. , and the second surface member 21 .

The main refractory core material C is provided in the inner space surrounded by the first surface material 20 and the second surface material 21 of the door body 2. They are provided so as to occupy all or part of the space except for the rear vertical frame 6), the middle vertical frame 5', the fireproof core members 7A to 7J, and the lock.

The main refractory core C is typically divided into multiple parts and formed from a combination of multiple parts. Also, the primary refractory core C may be formed from a single material or from a combination of different materials. The material forming the main refractory core C is not limited, and examples include calcium silicate board, rock wool, glass wool, lightweight cellular concrete panel (ACL panel), gypsum board, fiber reinforced cement board, and other heat insulating refractory cores. It can be formed from one or more combinations of materials and may also include other fire resistant or thermally insulating materials.

[A-5] Locking Device for Door Body As shown in FIG. 1, the door body 2 is rotatably supported on the door tail side vertical frame 13 of the door frame 1 by means of a hinge 25 provided at the door tail side portion. ing. On the door tip side portion of the outdoor facing surface (first facing surface 200 of the first surface member 20) and the indoor facing surface (second facing surface 210 of the second surface member 21) of the door 2 A handle 26 is provided. A first lock is built in a portion of the door body 2 on the side of the door, positioned in the middle in the height direction. Further, a second lock is located at the upper part of the door head side part of the door body 2, and a third lock is located at the lower part.

The first lock has a lock case (only the front plate 28A is shown in FIG. 2), a latch 280 and a deadbolt 281 built into the lock case. A first lock latch 280 and a strike of a deadbolt 281 are provided at a predetermined height on the first prospective surface 122 of the door leading side vertical frame 12 of the door frame 1 . The latch 280 protrudes from the front end side face of the door 2 by the biasing means and engages with the latch receiving hole of the strike to maintain the closed posture of the door 2 and interlocks with the turning operation of the handle 26. The door 2 is opened by retracting the protruding latch 280 into the front side facing surface of the door 2 to unlock the locked state. The deadbolt 281 is operated by turning the operation knob 27B provided on the interior-side viewing surface of the door 2 and turning the key inserted into the keyhole 27A provided on the outdoor-side viewing surface. It is designed to take a locking posture and a releasing posture with respect to.

The second lock has a lock case (only the front plate 28B is shown in FIG. 2) and a latch 280 built into the lock case and has no deadbolt. The third lock has a lock case (only the front plate 28C is shown in FIG. 2) and a latch 280 built into the lock case and has no deadbolt. The strike of the latch 280 of the second lock is provided at the upper portion of the first projection surface 122 of the vertical frame 12 of the door frame 1, and the strike of the latch 280 of the third lock is provided at the lower portion. . The latches 280 of the second and third locks protrude from the forward facing surface of the door 2 by means of biasing means and engage with the latch receiving holes of the strike to maintain the closed position of the door 2 . In this embodiment, when the opening is in the fully closed position, the door 2 is latched to the front side vertical frame 12 of the door frame 1 with latches at three positions in the height direction, thereby preventing the door 2 from being damaged by heat during a fire. To prevent warping as much as possible and prevent formation of a gap disadvantageous in terms of fire prevention or smoke prevention and heat shielding between a door body 2 and a door frame 1.例文帳に追加

The rotation of the handle 26 and the operation of the first, second, and third latches 280 are interlocked, and in the closed state of the door 2, the horizontal handle 26 is rotated downward. As a result, the latches 280 of the first lock, the second lock, and the third lock, which are in the locking posture (protruding posture) with respect to the latch receiving hole, move in the direction of retracting into the forward facing surface of the door body 2. Therefore, when the door body 2 is in the closed position, the three latches 280 in the protruded position interlock with the turning operation of the handle 26 and move to the front side facing surface of the door body 2. The door body 2 is opened by simultaneously retreating inside and unlocking the locked state. More specifically, the first lock and the second lock, and the first lock and the third lock are interlocked by a rod (not shown) extending vertically in the door body 2. In conjunction with the downward movement or upward movement, the latch 280 in the locking posture becomes the releasing posture. Such a so-called three-point latch lock is disclosed, for example, in Japanese Patent Application Laid-Open Nos. 2013-72179 and 2013-249644, and for specific interlocking configuration examples of the rod and latch 280, see the descriptions of these documents. You can refer to it. In this embodiment, a total of three locks are used: the first lock having the deadbolt 281 and the latch 280, the second lock having only the latch 280, and the third lock. may

[B] Door frame In general, conventional door frames are made of steel, and since they are members that are continuous from one side to the other side in the prospective direction, the heat received on the fire side is transmitted through the door frame. It is transmitted to the non-fire side as it is. Therefore, even if a door body with heat shielding performance is employed, there is a risk that heat will be transferred from the fire side to the non-fire side through the door frame. In this embodiment, by pouring gypsum into the door frame and solidifying it, the inner surface of the door frame 1 and the gypsum P are strongly adhered or fixed and integrated, and the gypsum P filled in the door frame 1 By suppressing the temperature rise of the door frame 1 due to the heat-insulating and heat-absorbing properties of the fire door, heat conduction from the fire side to the non-fire side through the door frame 1 is prevented as much as possible. In this specification, fillers containing gypsum as a main material are collectively referred to as gypsum P. The gypsum P may contain materials other than gypsum, and for example, the gypsum disclosed in JP-A-2017-110403 can be used. Furthermore, in this embodiment, the surface portion of the door frame 1 is a non-exposed portion that is not exposed to the outside. Improves heat shielding effect.

[B-1] Upper Frame The upper frame 10 is a long member extending in the width direction of the opening. As shown in FIG. It has an attached portion 101, a first lower surface 102 on the outdoor side, and a second lower surface 103 on the indoor side.

In this embodiment, the first viewing portion 100 refers to the entire viewing portion located on the outdoor side, and includes a main viewing surface 1000, an upper viewing surface 1002, a lower viewing surface 1005, and a main viewing surface. It consists of an upper intermediate horizontal surface 1001 extending between the upper edge of surface 1000 and the lower edge of upper viewing surface 1002 and a lower intermediate horizontal surface 1004 extending between the lower edge of main viewing surface 1000 and the upper edge of lower viewing surface 1005 .

An outdoor upper piece 1003 is formed by bending the upper end of the upper viewing surface 1002 of the first viewing portion 100 . The first lower surface 102 on the outdoor side extends horizontally from the lower end of the lower viewing surface 1005 of the first viewing portion 100 toward the indoor side.

In this embodiment, the second viewing portion 101 refers to the entire viewing portion located on the indoor side, and includes a main viewing surface 1010, an upper viewing surface 1012, and an upper end and upper viewing surface of the main viewing surface 1010. and an intermediate horizontal surface 1011 extending between the lower ends of the surface 1012 .

A room-side upper piece 1013 is formed by bending the upper end of the upper viewing surface 1012 of the second viewing portion 101 . The indoor-side second lower surface 103 extends horizontally from the lower end of the main viewing surface 1010 of the second viewing portion 101 toward the outdoor side.

The second lower surface 103 on the indoor side extends horizontally at a position lower than the first lower surface 102 on the outdoor side. A recess is formed that opens to the The recess is formed by an indoor portion of the first lower surface 102, an outdoor portion of the second lower surface 103, and an intermediate face 104 forming the bottom surface of the recess.

The recess extends in the width direction of the opening, the lower half is provided with an airtight material (door stopper rubber) S1 across the width of the opening, and the upper half is provided with a U-shaped support member 107' in cross section. It is provided across the width direction of the opening, and the support member is provided with a thermal expansion fireproof member 107 across the width direction of the opening (see FIG. 15).

The internal space of the upper frame 10 is filled with gypsum P, and the gypsum P adheres to the inner surface of the upper frame 10 . The gypsum P filled inside the upper frame 10 contains water of crystallization, and the temperature rise of the upper frame 10 and its surroundings is suppressed by the absorption of heat accompanying the evaporation of the water of crystallization due to the heat of the fire.

The shape of the upper frame 10 according to this embodiment will be further described with reference to FIG. 15 .
Height dimension of the main viewing surface 1010 of the second viewing portion 101: a,
Height dimension of the upper viewing surface 1012 of the second viewing portion 101: b,
Estimated dimension of intermediate horizontal plane 1011 of second finding portion 101: c,
Expected dimension of the second lower surface 103: d,
Height dimension of the main viewing surface 1000 of the first viewing portion 100: e,
Height dimension of the upper viewing surface 1002 of the first viewing portion 100: f,
Height dimension of lower viewing surface 1005 of first viewing portion 100: g,
Estimated dimension of the upper intermediate horizontal plane 1001 of the first finding portion 100: h,
Assuming that the expected dimension of the lower intermediate horizontal plane 1004 of the first finding section 100 is i,
The dimension between the main viewing surface 1000 of the first viewing portion 100 and the main viewing surface 1010 of the second viewing portion 101 W=h+j+c,
Height dimension H1 of the second finding portion 101=a+b,
The height dimension of the first finding portion 100 is H2=e+f+g=H1-k.
In this embodiment, although not limited,
H1/W≈0.7,
H2/W≈0.5,
, and is taller than a general upper frame, and the volume of the internal space of the upper frame 10 is relatively large.

The indoor-side edge of the outdoor-side upper piece 1003 and the outdoor-side edge of the indoor-side upper piece 1013 face each other with a gap therebetween, and an opening is formed between the outdoor-side upper piece 1003 and the indoor-side upper piece 1013 . formed. The outdoor-side upper piece 1003 and the indoor-side upper piece 1013 are connected by a plurality of long connecting members 105 at intervals in the opening width direction. In this embodiment, the connecting member 105 is embedded in the gypsum P except for the upper surface. Since the upper portion of the upper frame 10 does not have an upper surface and has an opening shape, the upper surface of the gypsum P does not contact the inner surface of the upper frame 10, but faces the opening. A covering member 106 is provided so as to cover substantially the entire area. By providing the covering member 106, the water of crystallization contained in the gypsum P, which suppresses the temperature rise of the upper frame 10, is retained within the frame.

As shown in FIG. 14 , the cover member 106 has short edges at its ends in the longitudinal direction fixed to the connecting member 105 , and long edges extending in the longitudinal direction correspond to the indoor-side edge of the outdoor-side upper piece 1003 . It is separated from the outdoor-side edge of the indoor-side upper piece 1013 and is not in contact with it. In this embodiment, the cover member 106 is an aluminum tape or sheet, which can withstand the heat of a fire for a predetermined period of time. Other materials may be used as long as they can retard or suppress the evaporation of moisture from the upper portion of the .

The walls according to this embodiment are formed from fireproof boards 14 and 15 . The lower surface of the inner fireproof board 15 is in contact with the outdoor upper piece 1003 and the indoor upper piece 1013 of the upper frame 10, and the lower part of the inner facing surface of the outer fireproof board 14 faces upward. The surface 1002 is in contact with the upper viewing surface 1012 , and the lower surface is in contact with the upper intermediate horizontal surface 1001 and the intermediate horizontal surface 1011 . The outer viewing surface of the outer fireproof board 14 is substantially flush with the main viewing surface 1000 and the main viewing surface 1010 (including a slight level difference that the consumer recognizes as being flush when viewed). It has become.

In the first viewing portion 100, the main viewing surface 1000 is an exposed surface exposed to the outside, and the upper viewing surface 1002 and the upper intermediate horizontal surface 1001 are covered with the fireproof boards 14 and 15 and are not exposed to the outside. It has become. In the second viewing portion 101, the main viewing surface 1010 is an exposed surface exposed to the outside, and the upper viewing surface 1012 and the intermediate horizontal surface 1011 are covered with the fireproof boards 14 and 15 and are not exposed to the outside. It's becoming

The surface area of the upper frame 10 is the length of each side of the upper frame 10 when viewed in cross section. can be specified using In this embodiment, the area of the second finding portion 101 can be represented by a+b+c, and the area of the exposed surface can be represented by a. In the second finding portion 101, a/a+b+c≈0.27. That is, about 30% of the area of the second finding portion 101 is the exposed surface. The height of the exposed surface with respect to the total height of the second finding portion 101 is a/a+b≈0.31.

Similarly, the area of the first opening portion 100 can be represented by e + g + f + h + i. The area can be represented by e+i, and in the first finder 100, e+i/e+g+f+h+i≈0.45. In other words, a portion less than half the area of the first finding portion 100 is the exposed surface. Also, the height of the exposed surface with respect to the total height of the first finding portion 100 is e/e+g+f≈0.45.

In this embodiment, the height H2 of the first cover portion 100 and the height dimension of the second cover portion 101 with respect to the overall expected size of the upper frame 10 are larger than those of the conventional low-height upper frame. By increasing H1, the volume of the gypsum P filled in the internal space is increased, and furthermore, the surface portions of the first fitting portion 100 and the second fitting portion 101 (upper fitting surface 1002, upper intermediate horizontal surface 1001, the upper side surface 1012, and the intermediate horizontal surface 1011) are non-exposed portions that are not exposed to the outside, thereby reducing the heat receiving area in the event of a fire, thereby increasing the volume ratio of the gypsum P to the heat receiving area. The heat performance and heat absorption performance are improved, and the temperature rise of the upper frame 10 is further suppressed.

[B-2] Lower Frame The lower frame 11 is a member extending in the width direction of the opening, and as shown in FIG. It has a character shape. The lower frame 11 is a railing, most of which is embedded in the floor surface FL, and the upper surface 112 is positioned slightly above the floor surface FL and extends horizontally. The lower frame 11 is filled with gypsum P. The gypsum P filled in the inside of the lower frame 11 contains water of crystallization, and the temperature rise of the lower frame 11 and the surroundings is suppressed by the heat absorption accompanying the evaporation of the water of crystallization due to the heat of the fire. Note that there may be a case where the lower frame 11 is not filled with gypsum.

[B-3] Door leading side vertical frame Door leading side vertical frame 12 is a long member extending in the height direction of the opening. As shown in FIG. It has a viewing portion 120, a second viewing portion 121 located on the indoor side, a first viewing surface 122 on the outdoor side, and a second viewing surface 123 on the indoor side.

In this embodiment, the first viewing portion 120 refers to the entire viewing portion located on the outside of the vehicle, and includes a main viewing surface 1200 and a main viewing surface 1200 located outside the main viewing surface 1200 (away from the opening). an inner viewing surface 1205 located inside (closer to the opening) than the main viewing surface 1200, the outer edge of the main viewing surface 1200 and the inner side of the outer viewing surface 1202. It consists of a first intermediate viewing surface 1201 extending between the ends and a second intermediate viewing surface 1204 extending between the inner edge of the main viewing surface 1200 and the outer edge of the inner viewing surface 1205 .

The outer edge of the outer viewing surface 1202 is bent to form a first outer viewing piece 1203 on the outdoor side. The first viewing surface 122 on the outdoor side extends in the viewing direction from the inner end of the inner viewing surface 1205 toward the interior side.

In this embodiment, the second viewing portion 121 refers to the entire viewing portion located on the indoor side, and is positioned on the main viewing surface 1210 and on the outside of the main viewing surface 1210 (away from the opening). and an intermediate viewing surface 1211 extending between the outer edge of the primary viewing surface 1210 and the inner edge of the outer viewing surface 1212 .

The outer edge of the outer viewing surface 1212 is bent to form a second outer viewing piece 1213 on the interior side. The indoor-side second viewing surface 123 extends in the viewing direction from the inner end of the main viewing surface 1210 toward the outdoor side.

The indoor-side second prospective surface 123 is located inside the outdoor-side first prospective surface 122 and extends in the prospective direction, and the indoor-side portion of the first prospective surface 122 and the outdoor-side portion of the second prospective surface 123 A recess opening to the outdoor side is formed between the parts. The recess is formed of an indoor portion of the first projection surface 122, an outdoor portion of the second projection surface 123, and an intermediate projection surface 124 forming the bottom surface of the recess.

The concave portion extends in the height direction of the door leading edge side vertical frame 12, the outer half portion is provided with an airtight material (door stop rubber) S2 over the height direction, and the inner half portion has a cross-sectional contact. A letter-shaped support member is provided over the height direction, and the support member is provided with a thermal expansion fire-resistant member 127 over the height direction.

Gypsum P is filled inside the door leading side vertical frame 12 . The gypsum P adheres to the inner surface of the door leading side vertical frame 12 . The gypsum P filled inside the door-end vertical frame 12 contains water of crystallization, and the temperature rise of the door-end vertical frame 12 and the surroundings is suppressed by the absorption of heat accompanying the evaporation of the water of crystallization due to the heat of the fire. Suppress.

The cross-sectional shape of the door leading side vertical frame 12 according to this embodiment is similar to the cross-sectional shape of the upper frame 10, and in the description of FIG.
"The height dimension of the main viewing surface 1010 of the second viewing portion 101: a" is changed to "The viewing dimension of the main viewing surface 1210 of the second viewing surface 121: a",
"The height dimension of the upper viewing surface 1012 of the second viewing section 101: b" is changed to "The viewing dimension of the outer viewing surface 1212 of the second viewing section 121: b",
"Estimated dimension of the intermediate horizontal plane 1011 of the second viewing section 101: c" is changed to "Estimated dimension of the intermediate viewing section 1211 of the second viewing section 121: c",
"Estimated dimension of the second lower surface 103: d" is changed to "Estimated dimension of the second estimated surface 123",
"The height dimension of the main viewing surface 1000 of the first viewing section 100: e" is changed to "The viewing dimension of the main viewing surface 1200 of the first viewing section 120: e",
"The height dimension of the upper viewing surface 1002 of the first viewing section 100: f" is changed to "The viewing dimension of the outer viewing surface 1202 of the first viewing section 120: f",
"The height dimension of the lower viewing surface 1005 of the first viewing section 100: g" is changed to "The viewing dimension of the inner viewing surface 1205 of the first viewing section 120: g",
"Estimated dimension of the upper intermediate horizontal plane 1001 of the first search section 100: h" is changed to "Estimated dimension of the first intermediate projected surface 1201 of the first search section 120: h",
"Estimated dimension of the lower intermediate horizontal plane 1004 of the first tab 100: i" is changed to "Estimated dimension of the second intermediate projected plane 1204 of the first tab 120",
can be read as
The dimension between the main viewing surface 1200 of the first viewing portion 120 and the main viewing surface 1210 of the second viewing portion 121 W=h+j+c,
The apparent dimension H1 of the second finding portion 121=a+b,
The nominal size of the first finding portion 120 is H2=e+f+g=H1−k.
In this embodiment, although not limited,
H1/W≈0.7,
H2/W≈0.5,
, and is wider than a general door-end-side vertical frame, and the volume of the internal space of the door-end-side vertical frame 12 is relatively large.

The indoor side edge of the first outdoor side prospective piece 1203 and the outdoor side edge of the indoor side second outdoor prospective piece 1213 are opposed to each other with a gap therebetween. An opening is formed between the outer projection pieces 1213 . They are connected by a plurality of long connecting members 125 spaced apart in the width direction of the opening. In this embodiment, the connecting member 125 is embedded in the gypsum P except for the outer surface. The outer prospective surface of the gypsum P does not contact the inner surface of the door tip side vertical frame 12 and faces the opening, and a covering member 126 is provided so as to cover substantially the entire upper surface of the gypsum P. For the configuration of the cover member 126, the description of the cover member 106 can be used.

The walls according to this embodiment are formed from fireproof boards 14 and 15 . The side surfaces of the inner fireproof board 15 are in contact with the first outer projection piece 1203 and the second outer projection piece 1213 of the door leading side vertical frame 12, and the inner facing surface of the outer fireproof board 14 is on the outside. It is in contact with the viewing surface 1202 and the outer viewing surface 1212 , and its side surfaces are in contact with the first intermediate viewing surface 1201 and the intermediate viewing surface 1211 . The outer viewing surface of the outer fireproof board 14 is substantially flush with the main viewing surface 1200 and the main viewing surface 1210 (including a slight level difference that the consumer recognizes as being flush when viewed). It has become.

In the first viewing portion 120, the main viewing surface 1200 is an exposed surface exposed to the outside, and the outer viewing surface 1202 and the first intermediate viewing surface 1201 are covered with the fireproof boards 14 and 15 and are not exposed to the outside. It has an exposed surface. In the second viewing portion 121, the main viewing surface 1210 is an exposed surface exposed to the outside, and the outer viewing surface 1212 and the intermediate viewing surface 1211 are covered with the fireproof boards 14 and 15 and are not exposed to the outside. It has become.

In the present embodiment, compared to the conventional vertical door frame, the projected dimensions of the first fitting portion 120 and the second fitting portion 121 relative to the overall projected dimensions of the door leading edge side vertical frame 12 are increased. By increasing the attachment dimension, the volume of the gypsum P filled in the internal space is increased, and furthermore, the surface portions of the first attachment portion 120 and the second attachment portion 121 (the outer attachment surface 1202, the first By making the intermediate prospective surface 1201, the outer facing surface 1212, and the intermediate prospective surface 1211) into non-exposed portions that are not exposed to the outside, the heat receiving area is reduced, thereby increasing the volume ratio of the gypsum P to the heat receiving area. The heat shielding performance and heat absorption performance are improved, and the temperature rise of the door tip side vertical frame 12 is further suppressed.

[B-4] Door Bottom Side Vertical Frame Door bottom side vertical frame 13 is a long member extending in the height direction of the opening, and as shown in FIG. It has a viewing portion 130, a second viewing portion 131 located on the indoor side, a first viewing surface 132 on the outdoor side, and a second viewing surface 133 on the indoor side.

In this embodiment, the first viewing portion 130 refers to the entire viewing portion located on the outdoor side, and includes a main viewing surface 1300 and an outer side located outside the main viewing surface 1300 (the side away from the opening). It consists of a viewing surface 1302 and an intermediate viewing surface 1301 extending between the outer edge of the primary viewing surface 1300 and the inner edge of the outer viewing surface 1302 .

The outer edge of the outer viewing surface 1302 is bent to form a first outer viewing piece 1303 on the outdoor side. The first viewing surface 132 on the outdoor side extends in the viewing direction from the inner end of the main viewing surface 1300 toward the interior.

In this embodiment, the second viewing portion 131 refers to the entire viewing portion located on the indoor side, and includes a main viewing surface 1310 and an outer side located outside the main viewing surface 1310 (away from the opening). It consists of a viewing surface 1312 and an intermediate viewing surface 1311 extending between the outer edge of the primary viewing surface 1310 and the inner edge of the outer viewing surface 1312 .

The outer edge of the outer viewing surface 1312 is bent to form a second outer viewing piece 1313 on the interior side. The indoor-side second viewing surface 133 extends in the viewing direction from the inner end of the main viewing surface 1310 toward the outdoor side.

The indoor-side second prospective surface 133 is located inside the outdoor-side first prospective surface 132 and extends in the prospective direction, and the indoor-side portion of the first prospective surface 132 and the outdoor-side portion of the second prospective surface 133 A recess opening to the outdoor side is formed between the parts. The recess is formed of an indoor portion of the first projection surface 132, an outdoor portion of the second projection surface 133, and an intermediate projection surface 134 forming the bottom surface of the recess.

The concave portion extends in the height direction of the door bottom side vertical frame 13, the outer half portion is provided with an airtight material (door stopper rubber) S3 over the height direction, and the inner half portion has a cross-sectional core. A letter-shaped support member is provided over the height direction, and the support member is provided with a thermal expansion fireproof member 137 over the height direction.

Gypsum P is filled inside the door tail side vertical frame 13 . The gypsum P adheres to the inner surface of the door tail side vertical frame 13 . The gypsum P filled inside the door trailing side vertical frame 13 contains water of crystallization, and the temperature rise of the door trailing side vertical frame 13 and the surroundings is suppressed by heat absorption accompanying the evaporation of the water of crystallization due to the heat of the fire. Suppress.

The indoor side edge of the first outdoor side prospective piece 1303 and the outdoor side edge of the indoor side second outdoor prospective piece 1313 are opposed to each other with a gap therebetween. An opening is formed between the outer projection pieces 1313 . They are connected by a plurality of long connecting members 135 spaced apart in the width direction of the opening. In this embodiment, the connecting member 135 is embedded in the gypsum P except for the outer surface. The outer prospective surface of the gypsum P faces the opening without contacting the inner surface of the door tail side vertical frame 13, and a covering member 136 is provided so as to cover substantially the entire upper surface of the gypsum P. The description of the covering member 106 can be used for the configuration of the covering member 136 .

The walls according to this embodiment are formed from fireproof boards 14 and 15 . The side surfaces of the inner fireproof board 15 are in contact with the first outer projection piece 1303 and the second outer projection piece 1313 of the door tail side vertical frame 13, and the inner facing surface of the outer fireproof board 14 faces outward. The attached surface 1302 is in contact with the outer viewing surface 1312 , and the side surfaces are in contact with the intermediate projection surface 1301 and the intermediate projection surface 1311 . The outer viewing surface of the outer fireproof board 14 is substantially flush with the main viewing surface 1300 and the main viewing surface 1310 (including a slight level difference that the consumer recognizes as being flush when viewed). It has become.

In the first viewing portion 130, the main viewing surface 1300 is an exposed surface exposed to the outside, and the outer viewing surface 1302 and the intermediate viewing surface 1301 are covered with the fireproof boards 14 and 15 and are not exposed to the outside. It has become. In the second viewing portion 131, the main viewing surface 1310 is an exposed surface exposed to the outside, and the outer viewing surface 1312 and the intermediate viewing surface 1311 are covered with the fireproof boards 14 and 15 and are not exposed to the outside. It has become.

In this embodiment, compared to the conventional door trailing side vertical frame, the expected size of the door trailing side vertical frame 13 as a whole is larger than the expected size of the first finding portion 130 and the second finding portion 131. By increasing the attachment dimension, the volume of the gypsum P filled in the internal space is increased, and furthermore, the surface portions of the first attachment portion 130 and the second attachment portion 131 (outer attachment surface 1302, intermediate attachment surface 1302, By making the surface 1301, the outer side surface 1312, and the intermediate surface 1311) as non-exposed portions that are not exposed to the outside, the heat receiving area is reduced, thereby increasing the volume ratio of the gypsum P to the heat receiving area and heat insulation. The performance and heat absorption performance are improved, and the temperature rise of the door tail side vertical frame 13 is further suppressed.

[C] Heat shielding structure of the door device [C-1] Heat shielding structure of the upper part of the door As shown in FIG. The material 8 and the thermal expansion fireproof member 9 are opposed to the first lower surface 102 of the upper frame 10 with the first gap G1 therebetween, and the upper projecting piece 22 projecting from the outdoor part of the upper surface of the door 2 is The lower viewing surface 1005 of the first viewing portion 100 of the upper frame 10 is opposed to the lower viewing surface 1005 with a second gap G2 therebetween. The first gap G1 is a gap extending horizontally when viewed from the side, and the second gap G2 is a gap extending vertically when viewed from the side. An L-shaped gap is formed, and this gap extends over the entire width of the door 2 .

The upper end of the upper protruding piece 22 of the door 2 faces the lower middle horizontal surface 1004 of the first viewing portion 100 of the upper frame 10 with a space therebetween. The outdoor side portions of the heat insulating material 8 and the thermal expansion fireproof member 9 provided on the upper surface of the door 2 extend to the outdoor side beyond the lower viewing surface 1005 of the first viewing portion 100 of the upper frame 10, That is, it is positioned below the second gap G2.

The upper portion of the second viewing surface 210 of the door 2 is in pressure contact with the airtight material S1, and the thermal expansion fireproof member 107 positioned adjacent to the upper side of the airtight material S1 is positioned on the interior side of the first gap G1. facing each other.

When the door 2 is in the fully closed position, the main viewing surface 1000 is exposed to the outside in the outdoor part of the door 2, and the upper viewing surface 1002 and the upper intermediate horizontal surface 1001 are not exposed to the outside. It has a non-exposed surface. The first lower surface 102 of the upper frame 10 is a non-exposed surface because the upper surface of the door 2 faces closely from below. The lower viewing surface 1005 of the first viewing portion 100 of the upper frame 10 is a non-exposed surface as the upper projecting piece 22 provided on the outdoor side portion of the upper surface of the door 2 faces. Although the upper end of the upper projecting piece 22 is close to the lower intermediate horizontal surface 1004 of the first cover portion 100 of the upper frame 10, the lower intermediate horizontal surface 1004 is an exposed surface. When the opening is fully closed, the upper surface of the door 2 closely faces the first lower surface 102, and the lower viewing surface 1005 is covered with the upper projecting piece 22 of the door 2. Therefore, the heat receiving surface ( The area of the exposed surface) can be represented by e+i. At the outdoor side portion of the upper frame 10, e+i/e+g+f+h+i≈0.45. In other words, a portion less than half the area of the outdoor side portion of the upper frame 10 serves as a heat receiving surface. In addition, although the lower intermediate horizontal surface 1004 of the first cover portion 100 of the upper frame 10 is not completely hidden, the upper projecting piece 22 is positioned below, so when a fire breaks out on the outdoor side, the fire can be prevented. Therefore, the main viewing surface 1000 occupies the main part of the heat receiving surface in the outdoor side portion of the door 2 .

When the door 2 is in the fully closed position, the main viewing surface 1010 and the second lower surface 103 are exposed to the outside, and the upper viewing surface 1012 and the intermediate horizontal surface 1011 are exposed to the outside. It is a non-exposed surface that is not exposed to the outside. At the room-side portion of the door 2, the main viewing surface 1010 and the second lower surface 103 serve as heat receiving surfaces. When the opening is fully closed, the area of the heat receiving surface (exposed surface) on the indoor side can be represented by a+d. At the room-side portion of the upper frame 10, a+d/a+b+c+d≈0.53. That is, about half of the area of the room-side portion of the upper frame 10 serves as a heat receiving surface.

When a fire breaks out on the outdoor side, the main viewing surface 1000 becomes a limited heat receiving surface and is heated. The temperature rise of the upper frame 10 and its surroundings is suppressed by endothermic heat absorption accompanying the evaporation of the water of crystallization due to the heat of time. In addition, the heat acting on the upper end surface of the door 2 from the heated first lower surface 102 of the upper frame 10 and the hot air entering through the second gap G2 and the first gap G1 cause the upper end surface of the door 2 to be heated. Since the acting heat is received by the heat insulating material 8 provided on the upper surface of the door 2 , the heat transmitted from the upper end surface of the door 2 to the door 2 is shielded by the heat insulating material 8 .

In this embodiment, the upper projecting piece 22 is formed on the outdoor side portion of the upper surface of the door 2, so that the gap between the upper surface of the door 2 and the first lower surface 102 of the upper frame 10 is formed on the outdoor side. A gap (first gap G1 + second gap G2) having an L shape in vertical cross section is formed with a recess (second gap G2), and the flame generated on the outdoor side directly enters the first gap G1. is suppressed as much as possible.

When a fire breaks out inside the room, the main viewing surface 1010 and the second lower surface 103 are heated as limited heat receiving surfaces, but the gypsum P filled inside the upper frame 10 absorbs water of crystallization. The temperature rise of the upper frame 10 and its surroundings is suppressed by the absorption of heat accompanying the evaporation of the water of crystallization due to the heat of the fire. Further, the heat that acts on the upper end surface of the door 2 from the heated second lower surface 103 of the upper frame 10 is received by the heat insulating material 8 provided on the upper surface of the door 2. The heat transmitted to 2 is shielded by heat insulating material 8 .

FIG. 6 shows a case where a fire occurs in the state of FIG. The second gap G2 is closed, and at the same time, the thermal expansion fireproof member 107 foams and expands to close the space located on the indoor side of the first gap G1. It is prevented from going around inside the room through the gap (first gap G1+second gap G2) in the upper part of the body 2. - 特許庁

[C-2] Heat shielding structure for the lower part of the door body As shown in FIG. facing each other. When the door body 2 is in the fully closed position, most of the lower frame 11 is positioned within the floor surface FL, and the lower surface of the door body 2 is positioned above the upper surface 112, and the lower frame 11 receives heat. There are few faces. The edge of the lower side 202 of the first surface member 20 and the edge of the lower side 212 of the second surface member 21 are separated from each other, and the portion of the thermal expansion fireproof member 420 is exposed. In the event of a fire, the thermal expansion fireproof member 420 is foamed and expanded by heating to close the gap between the lower surface of the door 2 and the upper surface 112 of the lower frame 11 across the width of the opening.

[C-3] Heat Insulation Structure for Door Tip Side Portion of Door Body As shown in FIG. The first prospective surface 122 of the door body 2 faces the first prospective surface 122 with a gap, and the door tip-side projecting piece 23 protruding from the outdoor part of the door tip-side prospective surface of the door body 2 is viewed from the inside of the door tip-side vertical frame 12. The attached surfaces 1205 are opposed to each other with a gap therebetween. there is The tip of the door leading edge side projecting piece 23 of the door body 2 faces the second intermediate projection surface 1204 of the door leading edge side vertical frame 12 with a space therebetween.

The door tip side portion of the second viewing surface 210 of the door body 2 is in pressure contact with the airtight material S2, and the thermal expansion fireproof member 127 positioned adjacent to the inner side of the airtight material S2 is positioned at the second end of the door body 2. It is spaced apart and opposed to the door tip side portion of the viewing surface 210 . The airtight material S<b>2 seals the interior side of the gap between the front side projection surface of the door 2 and the first front projection surface 122 of the door front side vertical frame 12 .

When the door 2 is in the fully closed position, the main viewing surface 1200 is an exposed surface exposed to the outside, and the outer viewing surface 1202 and the first intermediate viewing surface 1201 are exposed to the outside. It is a non-exposed surface that is not exposed. The first projected surface 122 of the door leading edge side vertical frame 12 is a non-exposed surface because the door leading edge side projected surface of the door body 2 faces closely. The inner facing surface 1205 of the door front side vertical frame 12 is a non-exposed surface because the door front side projecting piece 23 positioned on the outdoor side of the door body 2 faces. Although the second intermediate projected surface 1204 of the first cover portion 120 of the door leading edge side vertical frame 12 is not completely hidden, the door leading edge side projecting piece 23 is positioned on the side of the door leading edge side projecting piece 23, so a fire may break out on the outdoor side. When a fire occurs, it is difficult to directly receive the heat of the fire. Therefore, in the outdoor side portion of the door 2, the main viewing surface 1200 serves as a heat receiving surface.

When the door 2 is in the fully closed position, the main viewing surface 1210 and the second viewing surface 123 are exposed to the outside, and the outer viewing surface 1212 and the intermediate viewing surface are exposed to the outside in the interior side portion of the door 2. A non-exposed surface 1211 is not exposed to the outside. At the room-side portion of the door 2, the main viewing surface 1210 and the second viewing surface 123 serve as heat receiving surfaces.

When a fire breaks out on the outdoor side, the main viewing surface 1200 becomes a limited heat-receiving surface and is heated. is heated as a limited heat-receiving surface, but the gypsum P filled inside the door-end vertical frame 12 contains water of crystallization, and the water of crystallization evaporates due to the heat of the fire. Heat absorption suppresses the temperature rise of the door tip side vertical frame 12 and the surroundings.

In this embodiment, by forming the door-end-side protruding piece 23 at the door-end-side portion of the door body 2 , the gap between the door-end-side projected surface of the door body 2 and the first projected surface 122 of the door-end-side vertical frame 12 is A gap is formed on the outdoor side of the gap, and the flame generated on the outdoor side passes through the gap between the door tip side projection surface of the door body 2 and the first projection surface 122 of the door tip side vertical frame 12. as much as possible to prevent direct intrusion into

The edge of the first side 203 of the first surface member 20 and the edge of the first side 213 of the second surface member 21 are separated from each other, and the portion of the thermal expansion fireproof member 520 is exposed. The thermal expansion fireproof member 520 foams and expands due to the heat of the fire, so that the gap between the front side projection surface of the door 2 and the first projection surface 122 of the door front side vertical frame 12 is expanded in the opening height direction. At the same time, the thermal expansion fireproof member 127 is foamed and expanded by the heat of the fire, so that the door tip side portion of the indoor side facing surface of the door body 2 and the intermediate facing surface 124 of the door tip side vertical frame 12 are formed. By blocking the gap in the opening height direction, the flame of a fire generated on the outdoor side of the door body 2 is prevented from passing through the gap on the door tip side portion of the door body 2 and going around to the indoor side.

[C-4] Heat Insulation Structure for Door Bottom Side Portion of Door Body As shown in FIG. is opposed to the first prospective surface 132 of the with a gap therebetween. A portion of the door bottom side of the second viewing surface 210 of the door body 2 is in pressure contact with the airtight material S3. It is spaced and opposed to the door bottom side portion of the viewing surface 210 . The airtight material S3 seals the interior side of the gap between the door trailing side projection surface of the door 2 and the door trailing edge side projection surface 132 of the door trailing edge side vertical frame 13 .

When the door body 2 is in the fully closed posture, the main viewing surface 1300 is an exposed surface exposed to the outside, and the outer viewing surface 1302 and the intermediate viewing surface 1301 are not exposed to the outside in the outdoor part of the door body 2. It has a non-exposed surface. The first projected surface 132 of the door bottom side vertical frame 13 is a non-exposed surface because the door bottom side projected surface of the door 2 faces closely. Therefore, at the outdoor side portion of the door 2, the main viewing surface 1300 serves as a heat receiving surface.

When the door 2 is in the fully closed position, the main viewing surface 1310 and the second viewing surface 133 are exposed to the outside, and the outer viewing surface 1312 and the intermediate viewing surface are exposed to the outside. A non-exposed surface 1311 is not exposed to the outside. At the indoor-side portion of the door 2, the main viewing surface 1310 and the second viewing surface 133 serve as heat receiving surfaces.

When a fire breaks out on the outdoor side, the main viewing surface 1300 becomes a limited heat-receiving surface and is heated. However, the gypsum P filled inside the door tail side vertical frame 13 contains water of crystallization, and the water of crystallization evaporates due to the heat of the fire. The endothermic side vertical frame 13 and the surrounding temperature rise is suppressed by heat absorption.

The edge of the second side 204 of the first surface member 20 and the edge of the second side 214 of the second surface member 21 are separated from each other, and the portion of the thermal expansion fireproof member 620 is exposed. The thermal expansion fireproof member 620 foams and expands due to the heat of the fire, so that the gap between the door bottom side projected surface of the door 2 and the first projected surface 132 of the door bottom side vertical frame 13 extends in the opening height direction. At the same time, the thermal expansion refractory member 137 is foamed and expanded by the heat of the fire, so that the door tip side portion of the indoor side facing surface of the door body 2 and the intermediate facing surface 134 of the door trailing side vertical frame 13. By closing the gap in the height direction of the opening, the flame of a fire generated on the outdoor side of the door body 2 is prevented from going around inside the room through the gap of the door bottom side portion of the door body 2. - 特許庁

[D] Another form of the heat shield structure for the upper part of the door [D-1] Second embodiment Referring to Figs. 7 and 8, the second embodiment of the heat shield structure for the upper part of the door. explain. The configuration of the upper frame 10 is the same as that of the above-described first embodiment, and the above description can be used. The upper surface of the door 2 is formed by an upper edge 201 of the first surface member 20 and an upper edge 211 of the second surface member 21, and an upper projecting piece 22 is formed on the outdoor side portion of the upper surface.

The difference from the first embodiment is that in the first embodiment, the heat insulating material 8 and the thermal expansion fireproof member 9 are provided on the upper surface of the door 2, whereas in the second embodiment, the upper frame 10 1, the lower surface 102 is provided with the heat insulating material 8 and the thermal expansion fireproof member 9 .

As shown in FIG. 7, when the door body 2 is in the fully closed position, the heat insulating material 8 and the thermally expandable fireproof member 9 provided on the first lower surface 102 of the upper frame 10 are placed in the first gap G1 on the upper surface of the door body 2. The upper projecting piece 22 projecting from the outdoor part of the upper surface of the door 2 forms the second gap G2 on the lower viewing surface 1005 of the first viewing portion 100 of the upper frame 10. They are separated and face each other. The first gap G1 is a gap extending horizontally when viewed from the side, and the second gap G2 is a gap extending vertically when viewed from the side. An L-shaped gap is formed, and this gap extends over the entire width of the door 2 .

When a fire breaks out on the outdoor side, the main viewing surface 1000 becomes a limited heat-receiving surface and is heated. The gypsum P filled in the inside of the upper frame 10 contains water of crystallization, and the water of crystallization evaporates due to the heat of the fire, and the upper frame is heated by endothermic heat absorption accompanying the evaporation of the water of crystallization. 10 and the surrounding temperature rise is suppressed. In addition, the heat that acts on the upper end surface of the door 2 from the heated first lower surface 102 of the upper frame 10 is received by the heat insulating material 8 provided on the first lower surface 102 of the upper frame 10 . The heat transmitted to the upper end surface of 2 is shielded by heat insulating material 8 .

As in the first embodiment, the gap between the upper surface of the door 2 and the first lower surface 102 of the upper frame 10 is L-shaped in vertical cross-section with a gap (second gap G2) formed on the outdoor side. A gap (first gap G1+second gap G2) is formed to suppress direct entry of the flame generated on the outdoor side into the first gap G1 as much as possible.

FIG. 8 shows a case where a fire occurs in the state of FIG. 2 The lower part of the gap G2 is closed, and at the same time, the thermally expandable fireproof member 107 foams and expands to close the space located on the indoor side of the first gap G1. Flame is prevented from entering the room through the gap (first gap G1+second gap G2) in the upper part of the door 2.例文帳に追加

[D-2] Third Embodiment A third embodiment of the heat shield structure for the upper portion of the door will be described with reference to FIGS. 9 and 10. FIG. In the third embodiment, the upper end portion of the main surface portion (first viewing surface) 200 of the first surface member 20 forms a first upper projecting piece 22' extending upward beyond the upper surface. The upper end portion of the main surface portion (second viewing surface) 210 of the two-surface material 21 forms a second upper projecting piece 22' extending upward beyond the upper surface. That is, a first upper projecting piece 22' is formed on the outdoor side portion of the upper surface (upper side 201, upper side 211) of the door 2, and a second upper projecting piece 22' is formed on the indoor side portion. , the upper surface of the door body is concave.

A heat insulating material 8' is formed in a concave portion formed by a first upper projecting piece 22 and a second upper projecting piece 22', which are opposed rising portions, and the upper surface (upper side 201, upper side 211) of the door body 2, which is a bottom portion. A thermal expansion fireproof member 9 is provided on the upper surface of the heat insulating material 8'. The upper ends of the first upper projecting piece 22 and the second upper projecting piece 22 ′ are located slightly above the upper surface of the thermal expansion fireproof member 9 . The material forming the heat insulating material 8' is not limited as long as it has predetermined fire resistance and heat insulating properties. It may be formed from one or more combinations of board, fiber reinforced cement board, other insulating refractory core materials, and may also include other refractory or insulating materials.

The first viewing portion 100 of the upper frame 10 according to the third embodiment includes a main viewing surface 1000, an upper viewing surface 1002, and an upper side extending between the upper end of the main viewing surface 1000 and the lower end of the upper viewing surface 1002. The first lower surface 102 extends horizontally from the lower end of the main viewing surface 1000 toward the interior of the room. When the door body 2 is in the fully closed position, the upper end of the door body 2 (the upper end of the first upper projecting piece 22, the upper end of the second upper projecting piece 22', the upper surface of the thermal expansion fireproof member 9) 1 lower surface 102 with a gap therebetween. A thermal expansion fireproof member 107 faces the interior side of the gap.

When a fire breaks out on the outdoor side, the main viewing surface 1000 becomes a limited heat receiving surface and is heated. The temperature rise of the upper frame 10 and its surroundings is suppressed by endothermic heat absorption accompanying the evaporation of the water of crystallization due to the heat of time. In addition, the heat acting on the upper end surface of the door 2 from the heated first lower surface 102 of the upper frame 10 and the gap between the first lower surface 102 of the upper frame 10 and the upper end surface of the door 2 The heat acting on the upper end surface of the door 2 due to the intruding hot air is received by the heat insulating material 8 provided on the upper surface of the door 2. is insulated by

When a fire breaks out inside the room, the main viewing surface 1010 and the second lower surface 103 are heated as limited heat receiving surfaces, but the gypsum P filled inside the upper frame 10 absorbs water of crystallization. The temperature rise of the upper frame 10 and its surroundings is suppressed by the absorption of heat accompanying the evaporation of the water of crystallization due to the heat of the fire. Further, the heat that acts on the upper end surface of the door 2 from the heated second lower surface 103 of the upper frame 10 is received by the heat insulating material 8 provided on the upper surface of the door 2. The heat transmitted to 2 is shielded by heat insulating material 8 .

FIG. 10 shows a case where a fire occurs in the state of FIG. The gap between the lower surface 102 and the upper end surface of the door body 2 is closed, and at the same time, the thermally expandable fireproof member 107 foams and expands to close the space located on the interior side of the gap, thereby closing the room of the door body 2. It is possible to prevent the flames of a fire caused outside from going around the room through the gap.

[D-3] Fourth Embodiment A fourth embodiment of the heat shield structure for the upper portion of the door will be described with reference to FIG. The structure of the upper portion of the door 2 and the structure of the upper frame 10 are the same as those of the first embodiment, and the descriptions thereof can be used.

The difference from the first embodiment is that, in the first embodiment, the upper viewing surface 1002 of the first viewing portion 100 of the upper frame 10, the upper intermediate horizontal surface 1001, the upper viewing surface 1012 of the second viewing portion 101, While the intermediate horizontal plane 1011 is covered by the walls made up of the fireproof boards 14 and 15 and serves as an unexposed portion, in the fourth embodiment, the upper side of the first side portion 100 of the upper frame 10 is covered. The surface 1002, the upper intermediate horizontal surface 1001, the upper viewing surface 1012 of the second viewing portion 101, and the intermediate horizontal surface 1011 are housed in the ceiling 16 to form non-exposed portions. The description of the first embodiment can be used for the operation of the fourth embodiment of the heat shield structure for the upper portion of the door in the event of a fire.

[D-4] Reference Form A reference form of the heat shield structure for the upper portion of the door will be described with reference to FIGS. 12 and 13. FIG. The configuration of the upper frame 10 is the same as that of the above-described first embodiment, and the above description can be used. The upper surface of the door 2 is formed by an upper edge 201 of the first surface member 20 and an upper edge 211 of the second surface member 21, and an upper projecting piece 22 is formed on the outdoor side portion of the upper surface.

The difference from the first embodiment is that the heat insulating material 8 and the thermal expansion fire resistant member 9 are provided on the upper surface of the door body 2 in the first embodiment, whereas the reference embodiment has the heat insulating material 8 and the thermal expansion fire resistant material. The point is that it does not have any members.

As shown in FIG. 12, when the door 2 is in the fully closed posture, the first lower surface 102 of the upper frame 10 faces the upper surface of the door 2 with a first gap G1'. 2 is opposed to the lower viewing surface 1005 of the first viewing portion 100 of the upper frame 10 with a second gap G2' therebetween. The first gap G1' is a gap extending horizontally when viewed from the side, and the second gap G2' is a gap extending vertically when viewed from the side. , and this gap extends over the entire width of the door 2 .

In this embodiment, the upper projecting piece 22 is formed on the outdoor side portion of the upper surface of the door body 2, so that the gap between the upper surface of the door body 2 and the first lower surface 102 of the upper frame 10 is closed to the outdoor side. A gap (first gap G1′+second gap G2′) having an L shape in longitudinal cross-section is formed with a portion (second gap G2′) formed therein. as much as possible to prevent direct intrusion into

FIG. 13 shows a case where a fire occurs in the state of FIG. The edge of the upper side 201 of the first surface member 20 and the edge of the upper side 211 of the second surface member 21 are separated from each other, and the portion of the thermal expansion fireproof member 320 is exposed. The thermal expansion fireproof member 320 foams and expands due to the heat of the fire, closing the first gap G1′ in the opening width direction. The space located inside is blocked, and the flame of the fire that occurs on the outdoor side of the door body 2 passes through the gap (first gap G1' + second gap G2') in the upper part of the door body 2 and wraps around to the indoor side. is prevented.

[E] Application of heat insulating material to the front end side prospective surface, the door bottom side prospective surface, and the lower surface of the door body (the first facing surface 200 located on the open side, the second facing surface The viewing surface 210) and the viewing surface (upper surface, lower surface, door tip side viewing surface, door bottom side viewing surface) are formed from the first surface material 20 and the second surface material 21, which is one technical means of the present invention. In this case, the heat insulating material 8 is provided on the upper surface of the door body 2 . Here, in addition to the upper surface of the door body 2, at least one surface of the front end side projection surface, the door rear end projection surface, and the bottom surface may be provided with a heat insulating material. When the opening is fully closed, the heat insulating material provided on the prospective surfaces of the door body (door tip side prospective surface, door bottom side prospective surface, lower surface) and the corresponding prospective surface of the door frame 1 (door front vertical frame 12 second 1 projection surface 122, the first projection surface 132 of the door bottom side vertical frame 13, and the upper surface 112 of the lower frame 11) face each other with a gap therebetween. By providing a heat insulating material on the lower surface and side surfaces of the door body 2, a heat insulating effect is exhibited against heat acting on the prospective surface and the lower surface of the door body 2 from the side and lower sides of the door body 2 in the event of a fire.

In addition to the upper surface of the door body 2, when the heat insulating material is provided on at least one surface of the door tip side prospective surface, the door bottom side prospective surface, and the lower surface, further, the opposing heat insulating material and the prospective surface of the door frame 1 are provided. At least one of the openings may be provided with a thermal expansion fire-resistant member, and when the opening is fully closed, the thermal expansion fire-resistant member may be positioned in the gap between the opposing heat insulating material and the projected surface of the door frame.

For example, when a heat insulating material and a heat-expansion fireproof member are formed on the forward facing surface of the door body 2, the door forward side portion of the first facing surface 200 on the open side of the door body 2 is formed of the first surface material A door leading edge side projecting piece 23 is formed from a portion 20, and the door leading edge side projecting piece 23 has a gap in the door leading edge side vertical frame 12 of the door frame 1 when the opening is fully closed. Opposing inner viewing surfaces 1205 are formed so that the thermal expansion refractory member faces the first viewing surface 122 of the leading edge side vertical frame 12 and at least partially faces the leading edge side when the opening is fully closed. It is provided on the heat insulating material so as to face the gap between the projecting piece 23 and the inner viewing surface 1205 . Alternatively, the door tail side portion of the first viewing surface 200 on the open side of the door 2 is a projecting piece formed from the portion of the first surface material 20, and the door tail side vertical frame 13 of the door frame 1 is formed. is formed with a viewing surface on which the projecting pieces face each other with a gap when the opening is fully closed. The insulating material is provided so as to face the first projection surface 132 and at least partially face the gap between the projecting piece and the viewing surface. Alternatively, a similar configuration to the lower frame 11 may be adopted.

As described above, in the third embodiment, the upper end portions of both facing surfaces 200 and 210 of the door 2 are protrusions formed from surface materials (first surface material 20 and second surface material 21). (first upper projecting piece 22, second upper projecting piece 22'), the upper surface of door body 2 formed from surface material portions (upper side 201, upper edge 211) and two projecting pieces (first upper A heat insulating material 8' is provided between the projecting piece 22 and the second upper projecting piece 22'). It faces the lower surface (first lower surface 102) of the . The above configuration of the upper portion of the door 2 according to the third embodiment may be applied to one or more of the door tip side portion, the door tail side portion, and the lower portion of the door body 2 .

Specifically, the door tip side portions of both facing surfaces 200 and 210 of the door 2 are projecting pieces formed from surface materials (first surface material 20 and second surface material 21). , a heat insulating material is provided between the projected surface of the door body 2 formed from the surface material portion (first side 203, first side 213) and the two projecting pieces, When the opening is fully closed, the thermal expansion fireproof member provided on the heat insulating material faces the first projection surface 122 of the door leading side vertical frame 12 of the door frame 1 . Alternatively, the door trailing side portions of both facing surfaces 200 and 210 of the door body 2 are projecting pieces formed from surface materials (first surface material 20 and second surface material 21). The heat insulating material is provided between the door trailing side surface of the door body 2 formed from the material portion (second side 204, second side 214) and the two projecting pieces. When the door is fully closed, the thermal expansion fireproof member provided on the heat insulating material faces the first projection surface 132 of the door tail side vertical frame 12 of the door frame 1 . Alternatively, the lower end portions of both facing surfaces 200 and 210 of the door 2 are projecting pieces formed from surface materials (first surface material 20 and second surface material 21). The heat insulating material is provided between the lower surface of the door body 2 formed from the portions (lower side 202, lower side 212) and the two protrusions, and is provided on the lower surface of the heat insulating material when the opening is fully closed. A thermal expansion refractory member faces the upper surface 112 of the lower frame.

[F] Combination of the relationship between the heat receiving surface of the upper frame and the amount of gypsum filled inside With reference to FIG. The heat shielding effect of the frame 10 will be described. Assume that a fire breaks out inside the room when the opening is fully closed. The relationship between the area of the heat-receiving surface of the upper frame 10 and the volume of the gypsum P is considered using a sectional view of the upper frame 10 as a model. The relationship between the area of the heat-receiving surface of the upper frame 10 and the volume of the gypsum P can be defined by the relationship between the total line length L of the heat-receiving surface and the cross-sectional area A inside the upper frame. It is considered that the smaller the L/A, the greater the heat shielding effect.

In the model shown in (A), when the cross-sectional area of the upper frame 10 is A1 and the total length L of the heat receiving surface is a1+a2+a3+a4, L/A1≈0.036. In this model, the amount of gypsum P that can suppress the temperature rise of the upper frame 10 is insufficient for the heat receiving area.

In the model shown in (B), when the cross-sectional area of the upper frame 10 is A2 and the total line length L of the heat receiving surface is a1+a2+a3+a4', L/A2≈0.026. In this model, the amount of gypsum P is increased by increasing the height of the upper frame 10, but the increased height of the upper frame 10 also increases the heat receiving area.

In the model shown in (C), when the cross-sectional area of the upper frame 10 is A3 and the total line length L of the heat receiving surface is a1+a3+a2, L/A3≈0.016. In this model, the amount of gypsum P is increased by increasing the height of the upper frame 10, while the heat receiving area is increased by extending a part a4'' of the upper frame 10 upward within the wall. The amount of gypsum P is increased without causing In this way, while the height dimension of the upper frame 10 is increased, the increase in the height dimension of the cover portion of the upper frame 10 accompanying the increase in the height of the upper frame 10 can be prevented by By extending it in the ceiling), the opening part is partially hidden and a limited heat receiving area is obtained.

1 Door frame 10 Upper frame 102 First lower surface 1005 on the outdoor side 2 Lower side viewing surface 2 Door body 20 First surface material 200 First viewing surface 201 Upper side of the first surface material (upper surface of the door body)
21 Second surface material 210 Second viewing surface 211 Upper side of second surface material (upper surface of door body)
22 upper projecting piece, first upper projecting piece 22' second upper projecting piece 3 upper frame 4 lower frame 5 door tip side vertical frame 6 door trailing side vertical frame 8 heat insulating material 8' heat insulating material 9 thermal expansion fireproof member 9' foaming Expanded thermal expansion fireproof member G1 First gap G2 Second gap P Gypsum

Claims (5)

a quadrilateral frame;
a surface material fixed to the quadrilateral frame;
a door body comprising
A door device comprising a door frame,
The door body has a four-circumferential projection surface made up of the surface material portion,
The door frame has a four-circumferential projection surface facing the projection surface of the door body when the opening is fully closed,
The prospective surface of the door includes an upper surface, the upper surface is provided with a refractory heat insulating material, the prospective surface of the door frame includes the lower surface of the upper frame, and when the opening is fully closed, the A heat insulating material faces the lower surface of the upper frame of the door frame with a first gap therebetween,
A thermal expansion refractory member is provided on the upper surface of the heat insulating material, and when the opening is fully closed, the thermal expansion refractory member is positioned in the first gap and faces the lower surface of the upper frame.
door device. The upper end portion of the viewing surface on the opening side of the door body is a projecting piece formed from the surface material portion,
The upper frame is formed with a viewing surface on which the projecting pieces face each other with a second gap when the opening is fully closed,
When the opening is fully closed, the thermal expansion fireproof member faces the lower surface of the upper frame and at least partially faces the second gap between the projecting piece and the viewing surface. located on the top of the
A door system according to claim 1. a quadrilateral frame;
a surface material fixed to the quadrilateral frame;
a door body comprising
A door device comprising a door frame,
The door body has a four-circumferential projection surface made up of the surface material portion,
The door frame has a four-circumferential projection surface facing the projection surface of the door body when the opening is fully closed,
The prospective surface of the door includes an upper surface, the upper surface is provided with a refractory heat insulating material, the prospective surface of the door frame includes the lower surface of the upper frame, and when the opening is fully closed, the A heat insulating material faces the lower surface of the upper frame of the door frame with a gap therebetween,
A thermal expansion refractory member is provided on the upper surface of the heat insulating material, and when the opening is fully closed, the thermal expansion refractory member is positioned in the gap,
The upper end portion of the both facing surfaces of the door body is a projecting piece formed from the surface material portion,
The heat insulating material is provided between the upper surface of the door body formed from the surface material portion and the two projecting pieces,
When the opening is fully closed, the thermal expansion fireproof member provided on the upper surface of the heat insulating material faces the lower surface of the upper frame,
door device. The insulating material comprises at least one refractory material consisting of calcium silicate board, rock wool, glass wool, lightweight cellular concrete panel (ACL panel), gypsum board, fiber reinforced cement board.
The door device according to any one of claims 1-3. The door frame is hollow, and at least the upper frame is filled with a filler made of a material containing crystal water or free water.
The door device according to any one of claims 1-4 .

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