JP7267065B2 - fire door - Google Patents

Description

The present invention relates to fire doors.

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 is composed of a door body and a door frame. In general, the structure of the door body consists of a surface material, a rib and a central rib. Central ribs extending in the width direction are provided at equal intervals in the width direction. Furthermore, when providing heat insulation performance, it is conceivable to fill the inside of the door body with a heat insulating material or a fireproof material as a core material, but the surface material, ribs, and central ribs are made of metal (typically steel). Therefore, if the temperature on the fire side rises, there is a risk that the heat on the fire side will be transferred to the non-fire side by radiation, convection, and conduction through the door itself. As a result, the combustible material on the non-fire side that receives the heat may ignite, and the fire may spread. The fire door described in Patent Literature 1 uses a heat insulating material containing porous material and free water to ensure heat insulation in the event of a fire. With this approach, heat transfer from the fire side to the non-fire side relies on a specially constructed core (insulation).
JP 2016-166503

An object of the present invention is to suppress heat transfer from the heating surface side to the non-heating surface side through the door.

The technical means adopted by the present invention to solve such problems is
an aggregate including a quadrilateral frame;
a surface material fixed to the quadrilateral frame;
A refractory core material filled in the space surrounded by the surface material;
consists of
The refractory core material includes a main refractory core material provided in a portion surrounded by the four-circumferential frame,
An endothermic layer is provided on the facing surface of the main refractory core material,
A fire door.

In one aspect, the heat-absorbing layer is made of a heat-absorbing material that exhibits heat-absorbing effects when heated.
In one aspect, the heat-absorbing material is a heat-absorbing paint, and the heat-absorbing layer is formed by the applied heat-absorbing paint.
In one aspect, the endothermic material contains aluminum hydroxide.
In one aspect, the main refractory core material and the surface material are in contact via an endothermic layer.
In one aspect, the primary refractory core comprises refractory insulation.
In one aspect, the insulation is rock wool.

In one aspect, the main refractory core material is formed in multiple layers from two or more plate-shaped refractory materials, and the facing surfaces of the refractory materials are in contact or close to each other via an endothermic layer.
In one aspect, the plate-like refractory material is rock wool.
In one aspect, part or all of the facing surface of the primary refractory core is provided with an endothermic layer.

In one aspect, the main refractory core members are provided in a plurality of stages in the height direction of the door body, and the aggregates include intermediate horizontal frames provided between the plurality of main refractory core members.
By providing the middle horizontal frame, it is possible to prevent the main refractory core filled inside the door from falling off and creating a gap above the inside of the door. If there is a gap above the inside of the door, hot air may convect and cause a temperature rise on the non-fire side.
In one aspect, the aggregate includes a middle vertical frame provided on the door tip side of the door body, and the main fireproof core material is an upper frame, a lower frame, and a door trailing side vertical frame of the quadrilateral frame. , is provided at a portion surrounded by the middle vertical frame.
In one aspect, such a part is vertically partitioned by the middle horizontal frame, and the main refractory core members are provided in a plurality of stages in the height direction of the door body.

In one aspect, the refractory core includes an inner refractory core filled inside the aggregate, a heat absorption layer is provided between the inner refractory core and the inner surface of the aggregate, and the inner refractory The core material and the inner surface of the aggregate are in contact with each other through the heat absorbing layer.
In one aspect, a heat-absorbing layer is formed on the prospective surface of the main refractory core, and the prospective surface of the main refractory core is formed of the bone filled with the inner refractory core via the heat-absorbing layer. It is in contact with the prospective surface of the material.
In one aspect, the inner refractory core comprises a refractory insulating material.
In one aspect, the insulation is rock wool.

In one aspect, the refractory core includes an outer refractory core located between the face of the aggregate and the facing.
In one aspect, the outer refractory core is a calcium silicate board.
In one aspect, a lock is built in the door tip side portion of the fire door, and is located between the facing surface of the aggregate forming the door tip side vertical frame of the quadrilateral frame and the surface material. The outer refractory core member located on the door end side extends beyond the facing surface toward the center of the door body so as to be positioned between the installation position of the lock and the surface member.

In one aspect, between the outer refractory core members are positioned above and below the lock, and between the outer refractory core members on the door tip side are provided inner refractory core members.
In one aspect, the door end side internal refractory core material consists of a central first element (for example, rock wool) and a second element (calcium silicate plate) provided so as to sandwich the first element, The first element and the second element are in contact through a heat absorbing layer, and the second element is in contact with the outer refractory core.

In the fire door according to the present invention, by providing a heat-absorbing layer on the facing surface of the main fire-resistant core material provided in the area surrounded by the four-circumferential frame, the heat-absorbing reaction caused by the heat at the time of the fire causes the non-heating from the heating surface side. It is possible to suppress the heat from being transferred to the heating surface through the door.

In the fire door according to the present invention, furthermore, by providing an endothermic layer positioned on the contact surface of each element constituting the door body, the endothermic reaction due to the heat during the fire causes the heat from the heated surface side to the non-heated surface side. It is possible to suppress heat transfer through each element.

It is the front view which looked at the door apparatus from the outdoor side. FIG. 2 is a vertical cross-sectional view of the door device according to FIG. 1 taken along the line AA; FIG. 2 is a vertical cross-sectional view of the door device according to FIG. 1 taken along the line BB. FIG. 2 is a cross-sectional view of the door apparatus according to FIG. 1 taken along line CC; FIG. 5 is an enlarged view of the door tip side portion of FIG. 4; FIG. 2 is a cross-sectional view of the door device according to FIG. 1 taken along line DD; FIG. 10 is a diagram showing a block of aggregates filled with a second refractory core and a third refractory core; It is a figure which shows a 1st refractory core material. It is a figure which shows a 4th refractory core material. Fig. 2 is a model diagram showing the heat shielding effect of the heat absorbing layer in the first refractory core material having a multilayer structure. Only a model with an endothermic layer is shown.

[A] Overall configuration of the door device FIG. 1 is a front view of the door device according to the embodiment as viewed from the outside of the room. The door device includes a vertically rectangular door frame 1 and an opening formed by the door frame 1 It consists of a door body 2 for opening and closing the part. In this embodiment, the door 2 is a heat shield door or a fire door, and the door device is installed in an opening where fireproof performance is required.

The door frame 1 is formed in a vertical rectangular shape from an upper frame 10, a lower frame 11, a door leading side vertical frame 12 and a door trailing side vertical frame 13. - 特許庁An upper frame 10, a door tip side vertical frame 12, and a door trailing side vertical frame 13 are formed with grooves that open toward the opening side of the door body 2 over three sides, and the grooves are made of airtight rubber. An upper airtight member S1 (see FIG. 3), an end-side airtight member S2, and an end-side airtight member S3 (see FIG. 5) are provided, and the upper airtight member S1, end-side airtight member S2, and end-side airtight member are provided. S3 is a three-way door stop. When the opening is fully closed, the upper surface, the lower surface, the front end side projected surface, and the door rearward projected surface of the door body 2 in the closed posture are respectively an upper frame 10, a lower frame 11, a front vertical frame 12, and a door rearward side. The vertical frame 13 is closely opposed to the projected surface, and the peripheral portions of the three sides of the door body 2 (the door tip side portion, the door bottom side portion, and the upper side portion) are the upper airtight member S1, the door tip side airtight member S2, and the door bottom. It abuts on the side airtight member S3.

The door 2 according to the present embodiment includes a metal aggregate including a quadrilateral frame, a metal first surface material 20 and a second metal surface material 21 fixed to the quadrilateral frame, and a first surface and a refractory core material filled in the space surrounded by the material 20 and the second surface material 21 . The refractory core material according to the present embodiment includes a first refractory core material or a main refractory core material (blocks 8A to 8D made of rock wool RW1 to 3) occupying the largest volume in the inner space of the door 2, and a second refractory core. Material (rock wool RW4 to RW7, RW12, RW13 filled in the internal space of each aggregate), third refractory core material (arranged between each aggregate and the first surface material 20 and the second surface material 21 refractory core materials 7A to 7L), and a fourth refractory core material (blocks 14A to 14D consisting of rock wool RW8 to RW11 and refractory core materials 7E' and 7F').

The aggregates are an upper frame 3, a lower frame 4, a door tip side vertical frame 5, a door bottom side vertical frame 6, and one vertical frame provided on the door tip side of the door body 2. It consists of a frame, that is, a middle vertical frame 5', and three horizontal middle ribs, that is, a middle horizontal frame 4' provided in a space between the middle vertical frame 5' and the door bottom side vertical frame 6. As shown in FIG. Locks (a first lock 24, a second lock 25 and a third lock 26) are accommodated at a predetermined height in the space between the door front side vertical frame 5 and the middle vertical frame 5'.

The first surface member 20 is formed by bending a thin steel plate. , a lower side 202, a first side 203 on the front side of the door, and a second side 204 on the side of the door bottom. 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 .

The second surface member 21 is formed by bending a thin steel plate. , a lower side 212, a first side 213 on the front side of the door, and a second side 214 on the side of the door bottom. 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 edge 201 of the first surface member 20 and the upper edge 211 of the second surface member 21 are fixed to the upper frame 3 (upper surface portion 32), and the upper edge 201 of the first surface member 20 and the upper edge 211 of the second surface member 21 are fixed. A lower side 202 of the first surface member 20 and a lower side 212 of the second surface member 21 are fixed to the lower frame 4 (lower surface portion 42). The lower surface of the door body 2 is formed from the lower edge 202 and the lower edge 212 of the second surface member 21, and the first side edge 203 of the first surface member 20 and the first side edge 213 of the second surface member 21 form the door. It is fixed to the front vertical frame 5 (projection surface portion 52), and the projection surface of the door 2 extends from the first side 203 of the first surface member 20 and the first side 213 of the second surface member 21. The second side edge 204 of the first surface material 20 and the second side edge 214 of the second surface material 21 are fixed to the door bottom-side vertical frame 6 (projection surface portion 62), and the first surface 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.

As shown in FIG. 1, the door body 2 is rotatably supported on the trailing edge side vertical frame 13 of the door frame 1 by a hinge 22 provided at the door trailing edge side portion. 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 23 (the handle on the interior facing surface is not shown) is provided. A first lock 24 is built in a portion of the door body 2 on the side of the door, positioned in the middle in the height direction. In addition, a second lock 25 is located above the edge of the door 2, and a third lock 26 is located below.

The first lock 24 has a predetermined thickness (projected dimension) and a predetermined width (projected dimension), and includes a square-shaped lock case 240 as viewed from the front, and a latch and a deadbolt incorporated in the lock case 240 . A strike of the first lock 24 is provided at a predetermined height of the projected surface 120 (see FIG. 4A) of the door leading side vertical frame 12 of the door frame 1 . The latch protrudes from the front end side surface 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 protrudes in conjunction with the turning operation of the handle 23. The door body 2 is opened by retracting the engaged latch into the forward facing surface of the door body 2 and unlocking the locked state. The deadbolt is activated by the rotation of an operation knob (not shown) provided on the interior facing surface of the door body 2 and the rotation of a key inserted into a keyhole 241 provided on the exterior facing surface. It is designed to take a locking posture and a releasing posture with respect to the bolt receiving hole.

The second lock 25 has a predetermined thickness (projected dimension) and a predetermined width (projected dimension), and includes a lock case 250 having a square shape when viewed from the front, and a latch incorporated in the lock case 250. The deadbolt is not prepared. The third lock 26 has a predetermined thickness (projected dimension) and a predetermined width (projected dimension), and includes a square-shaped lock case 260 when viewed from the front and a latch built into the lock case 260. The deadbolt is not prepared. In this embodiment, the lock case 240 of the first lock 24, the lock case 250 of the second lock 25, and the lock case 260 of the third lock 26 have the same thickness (estimated dimension) and width (notional dimension). there is A latch strike for the second lock 25 is provided at the upper portion of the projection surface of the door leading side vertical frame 12 of the door frame 1, and a latch strike for the third lock 26 is provided at the lower portion. The latches of the second lock 25 and the third lock 26 protrude from the front side facing surface of the door 2 by the biasing means and are engaged with the latch receiving holes of the strike to maintain the closed posture 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 23 and the operation of the first lock 24, the second lock 25, and the third lock 26 are linked. , the latch of the first lock 24, the latch of the second lock 25, and the latch of the third lock 26, which are in the locking posture (protrusion posture) with respect to the latch receiving hole, are moved toward the door edge side of the door body 2. When the door body 2 is in the closed position, the three latches in the projecting position are interlocked with the turning operation of the handle 23, and are moved in the retracting direction into the viewing plane. The door body 2 is opened by simultaneously retracting it into the front side facing surface of the door body 2 and unlocking the locked state.

More specifically, the first lock 24 and the second lock 25, and the first lock 24 and the third lock 26 are interlocked by rods (not shown) extending vertically in the door 2. In conjunction with the downward movement or upward movement of the rod, the latch, which is in the locking position, assumes the releasing position. Such so-called three-point latch locks are disclosed, for example, in Japanese Patent Application Laid-Open Nos. 2013-72179 and 2013-249644, and for specific interlocking configuration examples of rods and latches, see the descriptions of these documents. can do. In this embodiment, a total of three locks, that is, the first lock 24 with a deadbolt and latch, the second lock 25 with only a latch, and the third lock 26 are used. It may be a lock, or four or more locks may be employed.

Between the upper side 201 of the first surface member 20 and the upper side 211 of the second surface member 21, the lower side of the first surface member 20 202 and the bottom edge 212 of the second surface material 21 , between the first side edge 203 of the first surface material 20 and the first side edge 213 of the second surface material 21 , the second side of the first surface material 20 . A thermal expansion refractory member 16 (representatively shown in FIG. 4A) is provided so as to straddle between the side 204 and the second side 214 of the second surface material 21, and screws 17 (FIG. 4A ) is fixed to the upper surface portion 32 of the upper frame 3 together with the upper edges 201 and 211, is fixed to the lower surface portion 42 of the lower frame 4 together with the lower edges 202 and 212, and is fixed to the lower surface portion 42 of the lower frame 4 by means of a first side edge 203 on the side of the door. , 213 are fixed to the projected surface portion 52 of the door leading edge side vertical frame 5, and are fixed to the projected surface portion 62 of the door trailing side vertical frame 6 along with the second side edges 204 and 214 on the door trailing side. In the event of a fire, the thermal expansion fireproof member 16 foams and expands due to the heat generated by the fire, so that the upper surface of the door body 2, the front end side prospective surface, the door bottom side prospective surface, the upper frame 10 of the door frame 1, and the door. It closes the gap between the front side vertical frame 12 and the door trailing side vertical frame 13 and the prospective surfaces.

The door body 2 according to the present embodiment has a heat-insulating refractory core material in the internal space in order to suppress heat transfer from the heating surface side to the non-heating surface side through the surface material and aggregate. is filled. The refractory core material according to the present embodiment includes an upper frame 3, a lower frame 4, a middle lateral frame 4', and A first refractory core material (a block 8A made of rock wool RW1 to RW3) is located in a space surrounded by the middle vertical frame 5' and the door bottom side vertical frame 6, and is provided over almost the entire thickness of the door 2. 8D), and the first frame filled inside each aggregate (upper frame 3, lower frame 4, door front side vertical frame 5, door bottom side vertical frame 6, middle vertical frame 5', middle horizontal frame 4') 2 Refractory core material (rock wool RW4 to RW7, RW12, RW13) and each aggregate (upper frame 3, lower frame 4, door front side vertical frame 5, door bottom side vertical frame 6, middle vertical frame 5', middle a third refractory core material 7 (7A to 7L) provided between the facing surface of the horizontal frame 4') and the main surface portion 200 of the first surface member 20 and the main surface portion 210 of the second surface member 21; , located in the space between the door tip side vertical frame 5 and the middle vertical frame 5', between the third fireproof core material 7 (7E, 7F) and the first lock 24, second lock 25, and third lock 26; and a fourth refractory core member (7E', 7F', blocks 14A-14D consisting of RW8-RW11) positioned therebetween.

The first refractory cores are provided as blocks 8A, 8B, 8C and 8D assembled from rock wool RW1-RW3. Each aggregate (upper frame 3, lower frame 4, door bottom side vertical frame 6, middle vertical frame 5′, middle horizontal frame 4') and the third refractory core members 7 (except 7A-7L, 7E and 7F) are respectively assembled to prepare blocks 9A-9E. The fourth refractory core material is prepared as blocks 14A to 14D assembled from RW8 to RW11, 7E', and 7F', the front side vertical frame 5 filled with rock wool RW6, the third refractory core material (7E, 7F), the first lock 24, the second lock 25, and the third lock 26 are provided in the inner space of the door tip side portion (width corresponding to the lock) of the door body 2.

In the fire door according to the present embodiment, as will be described in detail below, heat absorption layers a1 to By providing a6, it is possible to suppress heat transfer from the heating surface side to the non-heating surface side through the door body due to an endothermic reaction due to heat during a fire. Furthermore, by providing the endothermic layers a7 to a16 positioned on the contact surface of each element constituting the core material of the door body, each element moves from the heated surface side to the non-heated surface side by an endothermic reaction due to heat during a fire. Suppresses heat transfer through

[B] Aggregate Filled with Second Fireproof Core Material The aggregate of the door body 2 according to this embodiment consists of an upper frame 3, a lower frame 4, a vertical frame 5 on the door front side, and a vertical frame 6 on the door bottom side. It consists of a four-circumference rib, a vertical rib located on the door tip side of the door 2, that is, a middle vertical frame 5', and a horizontal rib, that is, a middle horizontal frame 4'. Each aggregate or frame 3 to 6, 5', 4' is a long member made of metal (typically made of steel) and having a U-shaped cross section. RW4 to RW7, RW12 and RW13 are filled. Rock wool RW4 to RW7, RW12, and RW13 constitute the second refractory core material. Hereinafter, the configuration of the aggregate filled with the second refractory core material will be described in detail mainly with reference to FIG.

The upper frame 3 of the door 2 is formed in a U-shape in cross section by a first viewing surface portion 30, a second viewing surface portion 31, and an upper surface portion 32. As shown in FIG. Rock wool RW4 as a filling material is filled in the recess formed by the first viewing surface portion 30, the second viewing surface portion 31, and the upper surface portion 32. As shown in FIG. Heat-absorbing paint is applied to the surface of the rock wool RW4 except for the lower surface, and heat-absorbing layers a11, a12, and a13 are formed between the inner surface of the upper frame 3 and the rock wool RW4. and the rock wool RW4 are in contact with each other through the heat absorbing layers a11, a12 and a13.

The lower frame 4 of the door 2 is formed in a U-shape in cross section from a first viewing surface portion 40, a second viewing surface portion 41, and a lower surface portion . Rock wool RW5 as a filling material is filled in the recess formed by the first viewing surface portion 40, the second viewing surface portion 41, and the lower surface portion . Heat-absorbing paint is applied to the surface of the rock wool RW4 except for the upper surface, and heat-absorbing layers a11, a12, and a13 are formed between the inner surface of the lower frame 4 and the rock wool RW5. and the rock wool RW5 are in contact with each other through the heat absorbing layers a11, a12 and a13.

The door tip side vertical frame 5 of the door 2 is formed in a U shape in cross section by a first viewing surface portion 50 , a second viewing surface portion 51 and a viewing surface portion 52 . Rock wool RW6 as a filling material is filled in the recess formed by the first viewing surface portion 50, the second viewing surface portion 51, and the viewing surface portion 52. As shown in FIG. Heat-absorbing paint is applied to the surface of the rock wool RW 6 except for the door trailing side surface, and heat-absorbing layers a11, a12, and a13 (Fig. 6) are formed, and the inner surface of the door leading side vertical frame 5 and the rock wool RW 6 are in contact with each other through the heat absorbing layers a11, a12 and a13. Predetermined portions in the height direction of the first viewing surface portion 50 and the second viewing surface portion 51 of the door leading edge side vertical frame 5 are notched to receive the lock cases 240, 250 and 260, corresponding to locks. Rock wool RW6 is not filled in the internal space. In this embodiment, the upper and lower ends of the projection surface portion 52 of the front side vertical frame 5 extend beyond the upper and lower ends of the first viewing surface portion 50 and the second viewing surface portion 51, respectively. Protruding pieces (not shown) are formed, which are positioned on the door tip side end face of the upper frame 3 and the door tip side end face of the lower frame 4, respectively, and extend to the door tip side end face of the rock wool RW4 and the rock wool RW5. It is closely opposed to or is in contact with the end surface on the door tip side.

The door tail side vertical frame 6 of the door 2 is formed in a U-shape in cross section by a first viewing surface portion 60, a second viewing surface portion 61, and a viewing surface portion 62. As shown in FIG. Rock wool RW7 as a filler is filled in the recess formed by the first viewing surface portion 60, the second viewing surface portion 61, and the viewing surface portion 62. As shown in FIG. Heat-absorbing paint is applied to the surface of the rock wool RW 7 except for the front end surface, and heat-absorbing layers a11, a12, and a13 are formed between the inner surface of the door bottom-side vertical frame 6 and the rock wool RW 7. The inner surface of the door trailing side vertical frame 6 and the rock wool RW7 are in contact with each other through the heat absorption layers a11, a12 and a13. In this embodiment, the upper and lower ends of the projection surface portion 62 of the door tail-side vertical frame 6 extend beyond the upper and lower ends of the first viewing surface portion 60 and the second viewing surface portion 61, respectively. Protruding pieces (not shown) are formed, which are positioned on the door tail side end face of the upper frame 3 and the door tail side end face of the lower frame 4, respectively, and extend to the door tail side end face of the rock wool RW4 and the rock wool RW5. It is closely opposed to or is in contact with the end face on the side of the door trailing edge.

The middle vertical frame 5' is formed in a U-shape in cross section from a first viewing surface portion 50', a second viewing surface portion 51', and a viewing surface portion 52'. Rock wool RW12 as a filling material is filled in the recess formed by the first viewing surface portion 50', the second viewing surface portion 51' and the viewing surface portion 52'. Heat-absorbing paint is applied to the surface of the rock wool RW 12 except for the door trailing surface, and heat-absorbing layers a11, a12, and a13 are formed between the inner surface of the middle vertical frame 5' and the rock wool RW 12. The inner surface of the middle longitudinal frame 5' and the rock wool RW12 are in contact with each other through the heat absorption layers a11, a12, and a13.

The middle-horizontal frame 4' is formed in a U-shape in cross section from a first viewing surface portion 40', a second viewing surface portion 41', and a lower surface portion 42'. Rock wool RW13 as a filling material is filled in the recess formed by the first viewing surface portion 40', the second viewing surface portion 41', and the lower surface portion 42'. Heat-absorbing paint is applied to the surface of the rock wool RW 13 except for the upper surface, and heat-absorbing layers a11, a12, and a13 are applied between the inner surface of the middle horizontal frame 4' and the rock wool RW 13. The inner surface of the horizontal frame 4' and the rock wool RW13 are in contact with each other through the heat absorption layers a11, a12, and a13.

The heat-absorbing material (heat-absorbing paint in this embodiment) forming the heat-absorbing layers a11, a12, and a13 is a substance that absorbs heat when heated, and is, for example, a paint containing aluminum hydroxide as a heat-absorbing substance. Such an endothermic substance is disclosed, for example, in JP-A-2014-88277. Heating during a fire causes the heat absorbing layers a11, a12, and a13 to undergo endothermic reaction by being exposed to high temperatures during fire, and the heat absorbing effect accompanying the endothermic reaction causes the aggregate of the door body 2 (frames 3 to 6, 5′, 4 ') and their peripheral temperature rise can be suppressed.

By filling the internal space of the aggregates (frames 3 to 6, 5', 4') of the door 2 with the second refractory core material (rock wool RW4 to RW7, RW12, RW13), the aggregates (frames 3 to 6, 5', 4') suppresses the transfer of heat due to convection from one viewing surface to the other viewing surface. In this embodiment, rock wool RW4 to RW7, RW12, and RW13, which are refractory heat insulating materials, are disclosed as the second refractory core material, but the material of the second refractory core material is not limited to rock wool. For example, glass wool, gypsum, or the like may be used.

[C] Third refractory core material In this embodiment, the estimated dimensions of the four-circumferential frame forming the ribs, that is, the upper frame 3, the lower frame 4, the door front side vertical frame 5, and the door bottom side vertical frame 6 The estimated dimension is smaller than the estimated dimension (thickness) of the door 2, and between the first surface material 20 and the four-circumferential frame, between the second surface material 21 and the four-circumferential frame , plate-shaped third refractory core members 7A to 7H are provided. By sandwiching the third refractory core members 7A to 7H between the metal first surface member 20 and the second surface member 21 and the metal four-circumferential frame, the door body 2 can be opened from one side to the other side. suppresses heat transfer to the viewing surface of

The projected dimensions of the middle vertical frame 5' and the middle horizontal frame 4' forming the backbone are smaller than the projected dimensions (thickness) of the door body 2. Plate-shaped third refractory core members 7I to 7L are provided between the middle and horizontal frames 4' and between the second surface member 21 and the middle and horizontal frames 5' and 4'. By sandwiching the third refractory core members 7I to 7L between the metal first surface member 20 and the second surface member 21 and the middle vertical frame 5' and the middle horizontal frame 4', one side of the door body 2 can be seen. It suppresses heat transfer from one attached surface to the other attached surface.

In this embodiment, the third refractory core 7 is formed from a calcium silicate plate (typically treated with a primer), but the material of the third refractory core 7 is not limited, and the heat shielding property is Other non-combustible materials provided may be employed. Examples of such nonflammable fireproof materials include gypsum boards and fiber-reinforced cement boards. The second refractory core material 7 according to this embodiment will be described in detail below.

The third refractory core members 7A to 7L are provided between the first surface member 20 and the second surface member 21 of the door body 2 and the facing surfaces of the respective aggregates (frames 3 to 6, 5', 4'). located and provided. In this embodiment, the third refractory core 7 includes a refractory core 7A provided between the first surface member 20 and the upper frame 3, and a refractory core provided between the second surface member 21 and the upper frame 3. material 7B, fireproof core material 7C provided between first surface material 20 and lower frame 4, fireproof core material 7D provided between second surface material 21 and lower frame 4, first surface material 20 and door Fireproof core material 7E provided between front side 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 7H provided between the second surface material 21 and the door tail side vertical frame 6, and between the first surface material 20 and the middle vertical frame 5' Fireproof core material 7I provided, fireproof core material 7J provided between the second surface material 21 and the middle vertical frame 5', and fireproof core material 7K provided between the first surface material 20 and the middle horizontal frame 4' , a refractory core material 7L provided between the second surface material 21 and the middle horizontal frame 4'.

The third refractory core members 7A to 7L have a first viewing surface and a second viewing surface extending in the width direction or height direction of the door 2, and four peripheral end surfaces, that is, the upper surface, the lower surface, and the length direction. It is an elongated plate having one end face and one longitudinal end face. In this embodiment, the refractory core materials 7A, 7B, 7C, and 7D have cross-sectional shapes with the same shape and dimensions, and the refractory core materials 7G, 7H, 7I, and 7J have cross-sectional shapes with the same shape and dimensions. The refractory core members 7K and 7L have the same cross-sectional shape and dimensions. The refractory core materials 7E and 7F have the same shape and the same dimensions, and the projected dimensions (thickness) are slightly smaller than those of the refractory core materials 7A, 7B, 7C, 7D, 7G, 7H, 7I, 7J, 7K and 7L. It has become. The refractory core members 7A to 7L sandwich each aggregate (upper frame 3, lower frame 4, door front side vertical frame 5, door bottom side vertical frame 6, middle vertical frame 5', middle horizontal frame 4'). The first viewing surface contacts the first viewing surface 200 of the door 2, and the second viewing surface contacts the viewing surfaces of the respective aggregates. More specific description will be given below.

The height dimension and width dimension (width dimension) of the fireproof core members 7A and 7B are the same as the height dimension and width dimension of the upper frame 3. , the second viewing surface contacts the first viewing surface portion 30 of the upper frame 3, and the first viewing surface of the refractory core 7B contacts the second viewing surface of the door 2. It contacts the surface 210 and the second viewing surface contacts the second viewing surface portion 31 of the upper frame 3 .

The height dimension and width dimension (width dimension) of the fireproof core members 7C and 7D are the same as the height dimension and width dimension of the lower frame 4. , the second viewing surface contacts the first viewing surface portion 40 of the lower frame 4, and the first viewing surface of the refractory core 7D contacts the second viewing surface of the door 2. It contacts the surface 210 and the second viewing surface contacts the second viewing surface portion 41 of the lower frame 4 .

The height dimensions of the fireproof core materials 7E and 7F are the same as the height dimensions of the door-end vertical frame 5, but the height dimensions of the fireproof core materials 7E and 7F are the same as the height dimensions of the door-end vertical frame 5. bigger than The first facing surface of the refractory core material 7E contacts the first facing surface 200 of the door 2, the second facing surface contacts the first facing surface portion 50 of the door leading side vertical frame 5, and the fireproof core The first viewing surface of the member 7F is in contact with the second viewing surface 210 of the door 2, and the second viewing surface is in contact with the second viewing surface portion 51 of the door leading side vertical frame 5. As shown in FIG.

The dimensions and height of the refractory core members 7G and 7H are the same as the dimensions and height of the vertical frame 6 on the door trailing edge side. The first viewing surface 200 contacts, the second viewing surface contacts the first viewing surface portion 60 of the door tail-side vertical frame 6, and the first viewing surface of the refractory core 7H contacts the second viewing surface of the door body 2. It is in contact with the attached surface 210 and the second attached surface is in contact with the second attached surface portion 61 of the door tail side vertical frame 6 .

The dimensions and height of the fireproof core members 7I and 7J are the same as the dimensions and height of the middle vertical frame 5', and the first face of the fireproof core 7I is the first face of the door 2. The first viewing surface 200 contacts, the second viewing surface contacts the first viewing surface portion 50' of the middle vertical frame 5', and the first viewing surface of the refractory core 7J contacts the second viewing surface of the door body 2. It is in contact with the attached surface 210, and the second attached surface is in contact with the second attached surface portion 51' of the middle longitudinal frame 5'.

The height dimension and width dimension of the fireproof core members 7K and 7L are the same as the height dimension and width dimension of the middle horizontal frame 4′, The first viewing surface 200 contacts, the second viewing surface contacts the first viewing surface portion 40' of the middle horizontal frame 4', and the first viewing surface of the refractory core 7L contacts the second viewing surface of the door body 2. It is in contact with the attachment surface 210, and the second attachment surface is in contact with the second attachment surface portion 41' of the middle lateral frame 4'.

[D] Block composed of aggregate filled with second refractory core material and third refractory core material In this embodiment, the upper block 9A is formed from the upper frame 3 and the refractory core materials 7A and 7B, and the lower frame 4 is formed. and refractory core members 7C and 7D form a lower block 9B, door trailing side vertical frame 6 and refractory core members 7G and 7H form a door trailing block 9C, middle vertical frame 5' and refractory core members A middle vertical block 9D on the door end side is formed from 7I and 7J, and a plurality of middle and horizontal blocks 9E are formed from the middle horizontal frame 4' and the refractory core members 7K and 7L. By forming such blocks 9A to 9E, the assembly efficiency of the door 2 can be improved. In this specification, the term “block” means a mass obtained by integrating a plurality of elements prior to assembly of the door body 2 . The aggregate filled with the second refractory core and the third refractory core are united by an adhesive means (eg, double-sided adhesive tape or adhesive) to form a block. As shown in FIG. 6, blocks 9A-9E are elongate rectangular parallelepipeds having viewing surfaces 90,91, viewing surfaces 92,93, and longitudinal end surfaces 94,95.

The upper surface of the refractory core material 7A, the upper surface of the refractory core material 7B, and the upper surface portion 32 of the upper frame 3 form the upper surface (projection surface 92) of the block 9A. The lower surface of the refractory core 7A, the lower surface of the refractory core 7B, the lower end of the first viewing surface portion 30 of the upper frame 3, the lower end of the second viewing surface portion 31 of the upper frame 3, and the lock filled in the upper frame 3. The lower surface of the block 9A (the prospective surface 93) is formed from the lower surface of the wool RW4. Door tip side end surface of fireproof core material 7A, door tip side end surface of fireproof core material 7B, door in length direction of upper frame 3 (first viewing surface portion 30, second viewing surface portion 31, and upper surface portion 32) A front side projection surface (longitudinal end surface 94) of the block 9A is formed from the front end surface, and the front end surface of the rock wool RW4 filled in the upper frame 3 is the projection side surface of the block 9A. is located in the vicinity of Door bottom side end surface of fireproof core material 7A, door bottom side end surface of fireproof core material 7B, door in length direction of upper frame 3 (first viewing surface portion 30, second viewing surface portion 31, and upper surface portion 32) The trailing edge side projection surface (longitudinal end face 95) of the block 9A is formed from the trailing edge side end surface, and the trailing edge side edge surface of the rock wool RW4 filled in the upper frame 3 is the trailing edge side projection surface of the block 9A. is located in the vicinity of In addition, when the upper ends of the door tip-side vertical frame 5 and the door trailing-side vertical frame 6 are not provided with upper extending pieces, the door tip-side end face and the door trailing-side end face of the rock wool RW 4 are respectively positioned at the door tip of the block 9A. The side prospective surface (longitudinal end face 94) and the door tail side prospective face (longitudinal end face 95) may coincide with each other (FIG. 6).

The upper surface of the refractory core 7C, the upper surface of the refractory core 7D, the upper end of the first facing surface portion 40 of the lower frame 4, the upper end of the second facing surface portion 41 of the lower frame 4, and the lock filled in the lower frame 4. The upper surface of the block 9B (the projected surface 93) is formed from the upper surface of the wool RW5. A lower surface (projection surface 92) of the block 9B is formed from the lower surface of the refractory core 7C, the lower surface of the refractory core 7D, and the lower surface portion 42 of the lower frame 4. Door tip side end surface of the fireproof core material 7C, door tip side end surface of the fireproof core material 7D, door in the length direction of the lower frame 4 (the first viewing surface portion 40, the second viewing surface portion 41, and the lower surface portion 42) A front side projection surface (longitudinal end surface 94) of the block 9B is formed from the front end surface, and the front end surface of the rock wool RW5 filled in the lower frame 4 is the front projection side surface of the block 9B. is located in the vicinity of Door bottom side end surface of fireproof core material 7C, door bottom side end surface of fireproof core material 7D, door in length direction of lower frame 4 (first viewing surface portion 40, second viewing surface portion 41, and lower surface portion 42) The trailing edge side projection surface (longitudinal end face 95) of the block 9B is formed from the trailing edge side end surface, and the trailing edge side edge surface of the rock wool RW5 filled in the lower frame 4 is the trailing edge side projection surface of the block 9B. is located in the vicinity of In the case where the lower ends of the door tip-side vertical frame 5 and the door trailing-side vertical frame 6 are not provided with the lower extending pieces, the door tip-side end surface and the door trailing-side end surface of the rock wool RW 5 are respectively attached to the door of the block 9B. The front side projection surface (longitudinal end surface 94) and the door trailing edge side projection surface (longitudinal end surface 95) may coincide with each other (FIG. 6).

The door tip side end face of the fireproof core material 7G, the door tip side end face of the fireproof core material 7H, the door tip side end of the first facing surface portion 60 of the door tail side vertical frame 6, and the door tail side vertical frame 6 second face A door tip side projection surface (projection surface 93) of the block 9C is formed from the door tip side end of the attached surface portion 61 and the door tip side end surface of the rock wool RW7 filled in the door tail side vertical frame 6. As shown in FIG. The trailing edge side end face of the refractory core member 7G, the trailing edge side end face of the fireproof core member 7H, and the trailing face portion 62 of the trailing door trailing frame 6 form the trailing face (foreign face 92) of the block 9C. The upper surface of the refractory core material 7G, the upper surface of the refractory core material 7H, the upper end in the height direction of the door tail side vertical frame 6 (the first viewing surface portion 60, the second viewing surface portion 61, and the viewing surface portion 62), and the lock. The upper end surface of the block 9C (longitudinal end surface 94) is formed from the upper end surface of the wool RW7. The lower surface of the refractory core material 7G, the lower surface of the refractory core material 7H, the lower ends in the height direction of the door tail side vertical frame 6 (the first viewing surface portion 60, the second viewing surface portion 61, and the viewing surface portion 62), and the lock The lower end surface of the block 9C (longitudinal end surface 95) is formed from the lower end surface of the wool RW7.

The trailing end face of the fireproof core material 7I, the trailing end face of the fireproof core material 7J, the trailing end of the first facing surface portion 50' of the middle vertical frame 5', and the second facing of the middle vertical frame 5' The trailing edge side end of the surface portion 51' and the trailing edge side end face of the rock wool RW12 filled in the middle longitudinal frame 5' form a door trailing side projection surface (projection surface 93) of the block 9D. A door tip side projection surface (projection surface 92) of the block 9D is formed from the door tip side end surface of the fireproof core material 7I, the door tip side end surface of the fireproof core material 7J, and the projection surface portion 52' of the middle vertical frame 5'. The upper surface of the refractory core material 7I, the upper surface of the refractory core material 7J, and the upper end in the height direction of the middle vertical frame 5' (the first viewing surface portion 50', the second viewing surface portion 51', and the viewing surface portion 52'). , the upper end surface of the block 9D (longitudinal end surface 94) is formed from the upper end surface of the rock wool RW12. With the lower surface of the refractory core material 7I, the lower surface of the refractory core material 7J, and the lower end in the height direction of the middle longitudinal frame 5' (the first viewing surface portion 50', the second viewing surface portion 51', and the viewing surface portion 52') , the lower end surface of the block 9D (longitudinal end surface 95) is formed from the lower end surface of the rock wool RW12. A heat-absorbing layer a16 is formed on the front end side surface of the block 9D (see FIGS. 4 and 5). The heat-absorbing layer a16 is formed by applying a heat-absorbing paint to the front end side surface of the block 9D.

The upper surface of the refractory core 7K, the upper surface of the refractory core 7L, the upper end of the first facing surface portion 40' of the central horizontal frame 4', the upper end of the second facing surface portion 41' of the central horizontal frame 4', and the central horizontal The upper surface of the block 9E (projection surface 93) is formed from the upper surface of the rock wool RW13 filled in the frame 4'. A lower surface (projection surface 92) of the block 9E is formed from the lower surface of the refractory core 7K, the lower surface of the refractory core 7L, and the lower surface portion 42' of the middle lateral frame 4'. Door tip side end surface of the fireproof core material 7K, door tip side end surface of the fireproof core material 7L, middle horizontal frame 4' (first facing surface portion 40', second facing surface portion 41', and lower surface portion 42') A door tip side prospective surface (longitudinal end face 94) of the block 9E is formed from the door tip side end face in the length direction and the door tip side end face of the rock wool RW13. The end face of the fireproof core material 7K on the side of the door tail, the end face of the fireproof core material 7L on the side of the door tail, and the middle horizontal frame 4' (the first facing surface portion 40', the second facing surface portion 41', and the lower surface portion 42'). A trailing surface (longitudinal end surface 95) of the block 9E is formed from the trailing edge side edge surface in the longitudinal direction and the trailing edge side edge surface of the rock wool RW13.

Prior to assembly of the door body 2, the door tip side vertical frame 5 and the fireproof core members 7E and 7F are not fixed in advance. In the door tip side vertical frame 5 filled with rock wool RW6, the door tail side end of the first facing surface portion 50 of the door tip side vertical frame 5 and the second facing surface portion 51 of the door tip side vertical frame 5 A door bottom side projection surface is formed from the door trailing edge and the rock wool RW 6 filled in the door tip side vertical frame 5 . and the upper end surface of the rock wool RW6. A lower end surface is formed from the lower end surface. In addition, the block may be formed by previously fixing only one of the refractory core members 7E and 7F (for example, the refractory core member 7E) to the door-end vertical frame 5 and the refractory core member 7E.

[E] First refractory core material The first refractory core material is prepared as blocks 8A to 8D formed by assembling rock wool RW1 to RW3. In FIG. 7, the blocks 8A to 8D are collectively indicated by "8". The space surrounded by the first surface member 20 and the second surface member 21 of the door 2, the upper frame 3, the lower frame 4, the middle vertical frame 5', and the door bottom side vertical frame 6 is different in the space. It is partitioned into four spaces by three middle lateral frames 4' extending horizontally in height, and each partitioned space is filled with blocks 8A, 8B, 8C, and 8D. In this embodiment, the blocks 8A to 8C have the same shape and dimensions, and the block 8D is a low-profile block that differs from the blocks 8A to 8C only in height dimension. Note that the blocks 8A to 8D may be formed from uniform blocks.

The configuration of the first refractory core will be described with reference to FIG. The block 8 has a multi-layer structure in which three plate-like rock wools RW1, RW2, and RW3 are overlapped with each other. That is, the block 8 according to the present embodiment has a multi-layer structure including a first layer made of rock wool RW1, a second layer made of rock wool RW2, and a third layer made of rock wool RW3.

As shown in FIG. 7, the blocks 8A to 8C are provided with six surfaces: a first viewing surface 80, a second viewing surface 81, an upper surface 82, a lower surface 83, a side surface 84 on the front side of the door, and a side surface 85 on the rear side of the door. It is a rectangular parallelepiped, and six outer surfaces are coated with heat absorbing paint, and heat absorbing layers a1, a2, a7 to a10 are formed. In this embodiment, each of the rock wools RW1, RW2, and RW3 is coated with an endothermic paint on six sides, and a block 8 is formed by stacking the rock wool RW1, RW2, and RW3 coated with an endothermic paint on the entire surface. The facing surfaces of rock wool RW1 and rock wool RW2, and the facing surfaces of rock wool RW2 and rock wool RW3, overlap with heat absorbing layers a3 and a4 and heat absorbing layers a5 and a6, respectively.

Specifically, a heat absorbing layer a1 is formed on the first viewing surface 80 of the block 8, and a heat absorbing layer a2 is formed on the second viewing surface 81, and rock wool RW1 and rock wool RW2 are formed. Heat absorbing layers a3 and a4 are formed at the boundary, heat absorbing layers a5 and a6 are formed at the boundary between the rock wool RW2 and the rock wool RW3, heat absorbing layer a7 is formed on the upper surface 82, and the lower surface An endothermic layer a8 is formed on the door 83, an endothermic layer a9 is formed on the side surface 84 on the door tip side, and an endothermic layer a10 is formed on the side surface 85 on the door bottom side.

The first viewing surface 80 of the block 8 is in contact with the first viewing surface (main surface portion 200 of the first surface member 20) of the door 2 via the heat absorbing layer a1, and the second viewing surface 80 of the block 8 is in contact. The surface 81 is in contact with the second facing surface of the door 2 (main surface portion 210 of the second surface member 21) via the heat absorption layer a2. Inside the block 8, endothermic layers a3 and a4 and endothermic layers a5 and a6 are formed at intervals in the direction of projection of the door 2 (thickness direction).

FIG. 9 shows a model diagram showing the heat shielding effect of the endothermic layer in the first refractory core material having a multilayer structure. The left figure shows a model in which a heat absorbing layer is provided at the boundary of each layer, and the right figure shows a model in which a heat absorbing layer is provided only on the surface of the first refractory core material. It is a conceptual diagram of a temperature gradient with the non-fire side on the right side. In the left figure, heat absorption layers a1 and a2 are formed on the outer surface of the multilayer structure, and furthermore, the first layer (RW1) and the second layer (RW2), the second layer (RW2) and the third layer (RW3) are adjacent via endothermic layers a3 and a4 and endothermic layers a5 and a6, respectively. In the right figure, heat absorption layers a1' and a2' are formed on the outer surface of the multilayer structure, and the first layer (RW1'), the second layer (RW2') and the second layer (RW2') are formed. The third layers (RW3') are in direct contact with each other. 1st layer (RW1), 2nd layer (RW2), 3rd layer (RW3) of the model on the left, 1st layer (RW1'), 2nd layer (RW2'), 3rd layer of the model on the right (RW3') has the same thickness, and the temperature drop gradient in each layer (RW1, RW2, RW3, RW1', RW2', RW3') is independent of the position of the layer (fire side or non-fire side). are substantially the same. The heat absorbing layers a1 to a6 have the same thickness, a1+a3+a4=a1' and a2+a5+a6=a2'. Here, the heat-absorbing material forming the heat-absorbing layer exhibits an endothermic reaction at, for example, 200°C or higher. Gradients are relatively small. On the other hand, in the model on the left, each layer (especially the intermediate layers a3 to a6) can increase the temperature drop gradient due to the heat absorption effect of the heat absorption layers. It is believed that the heat transfer rate can be delayed.

The block 8A constituting the first fireproof core material includes the first surface material 20 and the second surface material 21 of the door body 2, the upper frame 3, the middle vertical frame 5', the door bottom side vertical frame 6, and the middle horizontal The space surrounded by the frame 4' is filled. The first viewing surface 80 of the block 8A is in contact with the first viewing surface (main surface portion 200 of the first surface member 20) of the door 2 via the heat absorption layer a1, and the second viewing surface 80 of the block 8A is in contact with the first viewing surface 80 of the block 8A. The surface 81 is in contact with the second facing surface of the door 2 (main surface portion 210 of the second surface member 21) via the heat absorption layer a2. Between the first facing surface (heat absorbing layer a1) and the second facing surface (heat absorbing layer a2) of block 8A, rock wool RW1 as a fireproof heat insulating material, heat absorbing layers a3 and a4, and rock wool RW2 are provided. , endothermic layers a5 and a6, and rock wool RW3 are formed in multiple layers to provide a heat shielding effect between the first viewing surface 200 and the second viewing surface 210 of the door 2. As shown in FIG.

The upper surface of the block 8A is in contact with the lower surface of the block 9A through the heat absorbing layer a7, the lower surface of the block 8A is in contact with the upper surface of the block 9E through the heat absorbing layer a8, and the end surface of the block 8A on the side of the door is The end surface of the block 9D on the door bottom side is in contact with the end surface of the block 9D through the heat absorption layer a9, and the end surface of the block 8A on the door bottom side is in contact with the end surface of the block 9C on the door end side through the heat absorption layer a10.

The blocks 8B and 8C constituting the first refractory core material include the first surface material 20 and the second surface material 21 of the door body 2, the middle vertical frame 5', the door bottom side vertical frame 6, and two middle horizontal The space surrounded by the frame 4' is filled. The first facing surface 80 of the blocks 8B and 8C is in contact with the first facing surface of the door 2 (main surface portion 200 of the first surface member 20) through the heat absorbing layer a1. The second viewing surface 81 is in contact with the second viewing surface of the door 2 (main surface portion 210 of the second surface member 21) via the heat absorption layer a2. Rock wool RW1 as a fireproof heat insulating material, heat absorbing layers a3 and a4, rock Wool RW2, heat absorbing layers a5 and a6, and rock wool RW3 are provided to provide a heat shielding effect between the first viewing surface 200 and the second viewing surface 210 of the door 2.

The upper surfaces of blocks 8B and 8C are in contact with the lower surface of block 9E through an endothermic layer a7, the lower surfaces of blocks 8B and 8C are in contact with the upper surface of block 9E through an endothermic layer a8, and blocks 8B and 8C are in contact with each other. are in contact with the door trailing side projection surface of block 9D via heat absorption layer a9, and the door trailing end faces of blocks 8B and 8C are in contact with the door trailing edge side projection surface of block 9C via heat absorption layer a10. are in contact with each other.

The block 8D constituting the first fireproof core material includes the first surface material 20 and the second surface material 21 of the door body 2, the middle vertical frame 5', the door bottom side vertical frame 6, the middle horizontal frame 4', The space surrounded by the lower frame 4 is filled. The first viewing surface 80 of the block 8D is in contact with the first viewing surface (main surface portion 200 of the first surface member 20) of the door 2 via the heat absorption layer a1, and the second viewing surface 80 of the block 8D is in contact with the first viewing surface 80 of the block 8D. The surface 81 is in contact with the second facing surface of the door 2 (main surface portion 210 of the second surface member 21) via the heat absorption layer a2. Between the first facing surface (heat absorbing layer a1) and the second facing surface (heat absorbing layer a2) of block 8D, rock wool RW1 as a fireproof heat insulating material, heat absorbing layers a3 and a4, and rock wool RW2 are provided. , heat-absorbing layers a5 and a6, and rock wool RW3 are provided, and a heat shielding effect between the first viewing surface 200 and the second viewing surface 210 of the door 2 is exhibited.

The upper surface of the block 8D is in contact with the lower surface of the block 9E through the heat absorbing layer a7, the lower surface of the block 8D is in contact with the upper surface of the block 9B through the heat absorbing layer a8, and the door tip side end surface of the block 8D is The end surface of the block 8D on the door bottom side is in contact with the end surface of the block 9C via the endothermic layer a10.

[F] Fourth Refractory Core The fourth refractory core is provided as blocks 14A-14D assembled from RW8-RW11, 7E' and 7F'. In FIG. 8, the blocks 14A to 14D are collectively indicated by "14". As shown in FIG. 8, the fourth refractory core material (blocks 14A to 14D) includes a first viewing surface 140, a second viewing surface 141, an upper surface 142, a lower surface 143, a door tip side end surface 144, and a door bottom side end surface. 145 is a plate-like block. In this embodiment, the refractory cores 7E' and 7F' are calcium silicate plates, but the refractory cores 7E' and 7F' may be made of, for example, rock wool having a heat absorbing layer on the outer surface.

The fourth refractory core is composed of rock wool RW8 to RW11, which are plate-shaped bodies in the center in the thickness direction, and refractory cores 7E' and 7F' provided so as to sandwich the plate-shaped body. A heat absorbing layer a14 is formed between the first viewing surface of the body and the viewing surface of the refractory core material 7E', and the second viewing surface of the plate-like body and the viewing surface of the refractory core material 7F'. An endothermic layer a15 is formed therebetween.

The fourth refractory core (blocks 14A to 14D) has a first viewing surface 140 that abuts the inner viewing surface of the refractory core 7E and a second viewing surface 141 that contacts the inner viewing surface of the refractory core 7F. The door tip side end face 144 abuts on the door tail side prospective face of the door tip side vertical frame 5 filled with rock wool RW6, and the door tail side end face 145 is the door of the refractory core materials 7E and 7F. It is flush with the bottom side end face, and abuts on the front end side prospective face of the block 9D via the heat absorbing layer a16.

The projected dimensions (width) and projected dimensions (thickness) of the fourth refractory core members (blocks 14A to 14D) are substantially the same as the projected dimensions and projected dimensions of the storage spaces of the lock cases 240, 250, and 260. , blocks 14A to 14D are positioned above and below the lock cases 240, 250, 260 in the inner space of the door tip side portion (width corresponding to the lock) of the door 2. As shown in FIG. In addition, the estimated dimensions of the fourth refractory core material (blocks 14A to 14D) are the estimated dimensions of the door tip side vertical frame 5 (in this embodiment, the estimated dimensions of the other frames 3, 4, 6, 4', 5' slightly larger than ). More specific description will be given below.

The block 14A includes an upper frame 3, a door tip-side vertical frame 5, a middle vertical frame 5', fireproof core members 7E, 7F, It is provided in a space surrounded by the upper surface of the second lock 25 . The upper surface of the block 14A is flush with the upper surfaces of the refractory cores 7E and 7F and is in contact with the upper surfaces of the refractory cores 7E and 7F and the lower surface of the block 9A. The first viewing surface 140 of the block 14A is in contact with the viewing surface of the refractory core 7E, and the second viewing surface 141 of the block 14A is in contact with the refractory core 7F. , and the door tip side projection surface 144 of the block 14A is in contact with the door bottom side projection surface of the door tip side vertical frame 5 filled with rock wool RW6. The bottom side projection surface 145 abuts on the front side projection surface of the block 9D through the heat absorption layer a16 together with the door rear side end surfaces of the fireproof core members 7E and 7F.

The block 14B includes a door tip-side vertical frame 5, a middle vertical frame 5′, fireproof core members 7E and 7F, and a second lock 25 in the interior space of the door tip-side portion (width corresponding to the lock) of the door body 2. is provided in a space surrounded by the lower surface of the and the upper surface of the first lock 24 . The upper surface of the block 14B abuts the lower surface of the second lock case 250, the lower surface of the block 14B abuts the upper surface of the first lock case 240, and the first facing surface 140 of the block 14B is a refractory core. The second viewing surface 141 of the block 14B is in contact with the viewing surface of the refractory core 7F, and the door leading side viewing surface 144 of the block 14B is made of rock wool. The door bottom side projection surface of the door tip side vertical frame 5 filled with RW6 is in contact with the door bottom side projection surface 145 of the block 14B, together with the door bottom side end surfaces of the refractory core members 7E and 7F, and the heat absorption layer a16. It abuts on the front end side prospective surface of the block 9D via.

The block 14C includes a door tip-side vertical frame 5, a middle vertical frame 5', fireproof core members 7E and 7F, and a first lock 24 in the interior space of the door tip-side portion (width corresponding to the lock) of the door body 2. and the upper surface of the third lock 26 . The upper surface of the block 14C contacts the lower surface of the first lock case 240, the lower surface of the block 14C contacts the upper surface of the third lock case 260, and the first facing surface 140 of the block 14C is in contact with the refractory core. The second viewing surface 141 of the block 14C is in contact with the viewing surface of the refractory core 7F, and the door leading side viewing surface 144 of the block 14C is made of rock wool. The door bottom side projection surface of the door tip side vertical frame 5 filled with RW6 is in contact with the door bottom side projection surface 145 of the block 14C, together with the door bottom side end surfaces of the refractory core members 7E and 7F, and the heat absorption layer a16. It abuts on the front end side prospective surface of the block 9D via.

The block 14D includes the lower frame 4, the door tip side vertical frame 5, the middle vertical frame 5' fireproof core members 7E and 7F, the second 3 It is provided in a space surrounded by the lower surface of the lock 26 . The upper surface of the block 14D is in contact with the lower surface of the third lock case 260, and the lower surface of the block 14D is flush with the lower surfaces of the refractory core members 7E and 7F. 9B, the first facing surface 140 of the block 14D contacts the facing surface of the refractory core 7E, and the second facing surface 141 of the block 14D contacts the facing surface of the refractory core 7F. The door end side projection surface 144 of the block 14D is in contact with the door bottom side projection surface of the door end side vertical frame 5 filled with rock wool RW6, and is in contact with the door bottom surface of the block 14D. The side prospective surface 145, together with the end surfaces of the refractory core members 7E and 7F on the side of the door trailing edge, contacts the prospective surface of the block 9D via the heat absorption layer a16.

[G] Method for manufacturing the door A method for manufacturing the door 2 will be described. First surface material 20, second surface material 21, blocks 8A to 8D, blocks 9A to 9E, blocks 14A to 14D, door front side vertical frame 5, fireproof core materials 7E, 7F, first lock 24, second lock 25 , a third lock 26 and a rod (not shown).

Blocks 8A to 8D are prepared by laminating together plate-shaped rock wool RW1 to RW3, the outer surfaces of which are coated with heat-absorbing paint. In blocks 8A to 8D, heat absorption layers a1 to a10 are formed on the outer surfaces and boundary surfaces of plate-shaped rock wool RW1 to RW3.

Rock wool RW4 in which heat-absorbing paint is applied to three surfaces in the internal space of the upper frame 3, lower frame 4, door tip side vertical frame 5, door bottom side vertical frame 6, middle vertical frame 5', and middle horizontal frame 4'. By filling RW7, RW12, and RW13, an upper frame 3, a lower frame 4, a door leading side vertical frame 5, a door trailing side vertical frame 6, a middle A vertical frame 5' and a middle horizontal frame 4' are prepared. Between the inner surfaces of the upper frame 3, lower frame 4, door tip side vertical frame 5, door bottom side vertical frame 6, middle vertical frame 5', middle horizontal frame 4' and RW4 to RW7, RW12, RW13, there is a heat absorption layer a11 ~a13 are formed.

Prior to assembling the door body 2, the thermal expansion fireproof member 16 is attached to the outer surface of the upper surface portion 32 of the upper frame 3, the outer surface of the lower surface portion 42 of the lower frame 4, the outer surface of the projection surface portion 52 of the door leading side vertical frame 5, and the door. It is attached to the outer surface of the prospective surface portion 62 of the buttocks-side vertical frame 6. - 特許庁The thermally expandable fireproof member 16 is a tape-shaped elongated member having a predetermined width and an adhesive layer.

Upper frame 3, lower frame 4, door bottom side vertical frame 6, middle vertical frame 5′, middle horizontal frame 4′ filled with rock wool RW4, RW5, RW7, RW12, RW13, fireproof core materials 7A, 7B, Blocks 9A to 9E are formed by bonding refractory core materials 7C and 7D, refractory core materials 7G and 7H, refractory core materials 7I and 7J, and refractory core materials 7K and 7L.

(1) Place the main surface portion 200 of the first surface member 20 on a flat surface such as a floor surface. At this time, the back surface of the main surface portion 200 of the first surface member 20 faces upward, and the upper side 201, the lower side 202, the first side 203, and the second side 204 stand up vertically.

(2) Place the blocks 9A, 9B, 9C, and the refractory core 7E around the back surface of the main surface portion 200 of the first surface member 20 in a quadrilateral manner.

(3) Place the blocks 9D and 9E on predetermined portions of the back surface of the main surface portion 200 of the first surface member 20 .

(4) Place the block 8A in the area surrounded by the blocks 9A, 9C, 9D and 9E on the back surface of the main surface portion 200 of the first surface member 20, and place the upper and lower blocks 9E, 9C and 9D. Place the block 8B in the area surrounded by , place the block 8C in the area surrounded by the upper and lower blocks 9E, 9C, and 9D, and place the block 8C in the area surrounded by the blocks 9E, 9C, 9D, and 9B. A block 8D is placed on the area where the

(5) Place the door-end vertical frame 5 on the refractory core material 7E. A first lock 24, a second lock 25, and a third lock 26 are provided at predetermined positions of the door front side vertical frame 5, a block 14A is provided between the block 9A and the second lock 25, and the first lock 24 and the second lock are provided. A block 14B is provided between 25, a block 14C is provided between the first lock 24 and the third lock 26, and a block 14D is provided between the third lock and the block 9B. Set rods in blocks 14B and 14C.

(6) Place the refractory core material 7F on the door tip side vertical frame 5 and the blocks 14A to 14D of the door tip side portion of the door body.

(7) With the thermal expansion fireproof member 16 sandwiched between the upper side 201 of the first surface member 20 and the upper surface portion 32 of the upper frame 3 , the upper side 201 is fixed to the upper surface portion 32 using the screws 17 . The lower side 202 of the first surface member 20 and the lower surface 42 of the lower frame 4 are fixed to the lower surface 42 with the screws 17 while the thermal expansion fireproof member 16 is sandwiched between them. With the thermal expansion fireproof member 16 sandwiched between the first side edge 203 of the first surface member 20 and the projection surface part 52 of the door-end vertical frame 5 , the screws 17 are used to attach the first side edge 203 to the projection surface part 52 . fixed. With the thermal expansion fireproof member 16 sandwiched between the second side 204 of the first surface member 20 and the projected surface 62 of the door bottom-side vertical frame 6 , the screws 17 are used to attach the second side 204 to the projected surface 62 . fixed. This screw fixing may be performed at the time when the block 9A, the block 9B, the block 9C, and the door-end vertical frame 5 are installed on all four sides.

(8) Cover with the second surface material 21 . The back surface of the main surface portion 210 of the second surface member 21 is in contact with the facing surfaces of the blocks 9A, 9B, 9C, 9D, 9E, 8A to 8D, and the refractory core 7F. , the inner surfaces of the first side 213 and the second side 214 are in contact with or close to the projected surfaces of the blocks 9A, 9B and 9C and the end surface of the refractory core 7F on the side of the door.

(9) With the thermal expansion fireproof member 16 sandwiched between the upper edge 211 of the second surface member 21 and the upper surface portion 32 of the upper frame 3 , the upper edge 211 is fixed to the upper surface portion 32 using the screws 17 . The lower side 212 is fixed to the lower surface portion 42 using the screws 17 while the thermal expansion fireproof member 16 is sandwiched between the lower side 212 of the second surface member 21 and the lower surface portion 42 of the lower frame 4 . With the thermal expansion fireproof member 16 sandwiched between the first side edge 213 of the second surface member 21 and the projection surface part 52 of the door-end vertical frame 5 , the screw 17 is used to attach the first side edge 213 to the projection surface part 52 . fixed. With the thermal expansion fireproof member 16 sandwiched between the second side 214 of the second surface member 21 and the projected surface 62 of the door tail-side vertical frame 6 , the screws 17 are used to attach the second side 214 to the projected surface 62 . fixed.

Thus, the door body 2 includes a first surface member 20, a second surface member 21, blocks 8A to 8D, blocks 9A to 9E, blocks 14A to 14D, a door-end vertical frame 5, fireproof cores 7E and 7F, The lock is manufactured by assembling a lock consisting of a first lock 24, a second lock 25, a third lock 26 and a rod (not shown). Those skilled in the art will appreciate that the order of the steps in the parts may be reversed. Further, it will be understood by those skilled in the art that, in each step, the surfaces with which the respective elements abut may be appropriately adhered with an adhesive or the like. In this embodiment, by preparing blocks 8A to 8D, blocks 9A to 9E, and blocks 14A to 14D, work efficiency during assembly is improved. The door body 2 may be manufactured.

[H] Fireproof Structure of Door Device In the door body 2 thus assembled, the inner surface of the first facing surface 200 is provided with the fireproof core members 7A, 7C, 7G, 7I and 7K of the blocks 9A to 9E. The heat absorption layer a1 of the blocks 8A to 8D is in contact with the surface, and the inner surface of the second facing surface 210 is the facing surface of the refractory core materials 7B, 7D, 7H, 7J, and 7L of the blocks 9A to 9E. The heat absorbing layers a2 of 8A to 8D are in contact with each other. As described above, the blocks 8A to 8D have a multi-layered structure of rock wool RW1 to RW3, and the heat absorbing layers a3, a4 and the heat absorbing layers a5, a6 are formed at the boundaries of each layer. In addition, as described below, by forming a heat absorbing layer on the contact surface of each element to lower the heat transfer efficiency between the elements, heat is transferred from the heating surface side to the non-heating surface side through the door body. suppress

The upper end surface of the door end vertical frame 5, the upper end surfaces of the refractory core members 7E and 7F, the upper surface of the block 14A, and the upper surface of the block 9D are in contact with the door tip side portion of the lower surface of the upper block 9A. The upper surface of the block 9C is in contact with the lower surface on the side of the door trailing edge, and the upper surface of the block 8A is in contact with the lower surface of the block 9A via the heat absorbing layer a7. The internal space of the upper frame 3 that forms the block 9A is filled with rock wool RW4 via heat absorbing layers a11 to a13.

The lower end surface of the door end vertical frame 5, the lower end surfaces of the refractory core members 7E and 7F, the lower surface of the block 14D, and the lower surface of the block 9D are in contact with the door tip side portion of the upper surface of the lower block 9B. The lower surface of the block 9C is in contact with the door tail side portion of the upper surface of the block 9B, and the lower surface of the block 8D is in contact with the upper surface of the block 9B via the heat absorbing layer a8. The inner space of the lower frame 4 forming the block 9B is filled with rock wool RW5 via the heat absorption layers a11 to a13.

The projected surface of the block 9C on the trailing edge side is in contact with the projected surface of the door trailing side of the blocks 8A to 8D via the heat absorbing layer a10, and the end surface of the block 9E on the trailing side is in contact with the projected surface of the block 9C. there is The internal space of the upper frame 3 that forms the block 9C is filled with rock wool RW7 via heat absorbing layers a11 to a13. The internal space of the middle lateral frame 4' forming the block 9E is filled with rock wool RW13 via heat absorbing layers a11 to a13.

The door bottom side projection surface of the block 9D is in contact with the door tip side projection surfaces of the blocks 8A to 8D via the heat absorption layer a9, and the door tip end surface of the block 9E is in contact with the door bottom projection surface. The door tail side prospective surfaces of the blocks 14A to 14D and the door tail side end surfaces of the refractory core members 7E and 7F are in contact with the door tip side prospective surface of the block 9D via the heat absorbing layer a16. The internal space of the middle vertical frame 5' forming the block 9D is filled with rock wool RW12 via heat absorbing layers a11 to a13.

The door trailing side projection surface of the door tip side vertical frame 5 filled with rock wool RW6 is in contact with the door tip side projection faces of the blocks 14A to 14D, and the door tip side vertical frame 5 has a first viewing surface portion 50. The refractory core material 7E is in contact with the second viewing surface portion 51, and the refractory core material 7F is in contact with the second viewing surface portion 51. As shown in FIG.

In this embodiment, the first surface material 20, the second surface material 21, the blocks 8A to 8D, the blocks 9A to 9E, the blocks 14A to 14D, the door front side vertical frame 5, the fireproof core material, which are the constituent elements of the door 2 In 7E and 7F, the door body 2 is constructed by appropriately abutting or contacting the elements, but there are cases where they may be close to each other to the extent that the heat insulation performance of the door body 2 is not affected. is understood by those skilled in the art, in which case "abutment", "contact" can be replaced with "proximity".

Further, when a fire occurs when the door body 2 is in a fully closed position, the thermally expandable fireproof members 16 provided on the four circumferential surfaces of the door body 2 foam and expand, causing the upper surface of the door body 2, To prevent indoor and outdoor flames by closing a gap between a door tip side prospective surface, a door bottom side prospective surface and the prospective surfaces of an upper frame 10 of a door frame 1, a door tip vertical frame 12 and a door trailing vertical frame 13. and smoke flow.

1 door frame 2 door body 20 first surface member 200 main surface portion, first viewing surface 21 second surface member 210 main surface portion, second viewing surface 24 first lock 25 second lock 26 third lock 3 upper frame 4 Lower frame 5 Door end side vertical frame 6 Door bottom side vertical frame 4' Middle horizontal frame 5' Middle vertical frame 7A-7L Third fireproof core material (outside fireproof core material)
7E', 7F' refractory core material (outer refractory core material on door end side, fourth refractory core material)
8 (8A-8D) block (first refractory core), main refractory core 9A-9E block 14A-14D block (fourth refractory core)
RW1 to RW3 Rock wool (first refractory core), main refractory core, plate-shaped refractory RW4 to RW7, RW12, RW13 rock wool (inner refractory core, second refractory core)
RW8 to RW11 Rock wool (4th refractory core material)
a1 to a15 endothermic layer

Claims (5)

an aggregate comprising a quadrilateral frame;
a surface material fixed to the quadrilateral frame;
A refractory core material filled in the space surrounded by the surface material;
consists of
The refractory core material includes a main refractory core material provided in a portion surrounded by the four-circumferential frame,
The main refractory core material is a block formed in multiple layers by overlapping two or more plate-shaped refractory materials with their facing surfaces facing each other. Formed from the facing surface and the facing surface of the refractory material,
An endothermic layer is formed on six surfaces consisting of two facing surfaces and four facing surfaces of each refractory material,
The facing surface and the facing surface of the main refractory core are provided with the heat absorption layer, and the interior of the main refractory core is a multi-layered structure comprising heat absorption layers formed on the facing surfaces of the adjacent refractory materials. An endothermic layer is formed,
fire door. The main refractory core members are provided in a plurality of stages in the height direction of the door body, and the aggregate includes a middle horizontal frame provided between the plurality of main refractory core members.
The fire door of Claim 1. The aggregate includes a middle vertical frame provided on the door tip side of the door body, and the main fireproof core material is the upper frame, the lower frame, the door trailing side vertical frame, and the middle vertical frame of the quadrilateral frame. is located in the area surrounded by
A fire door according to claim 2 . The refractory core includes an inner refractory core filled inside the aggregate, a heat absorption layer is provided between the inner refractory core and the inner surface of the aggregate, and the inner refractory core and the bone The inner surface of the material is in contact through the heat absorbing layer,
The fire door according to any one of claims 1-3 . the refractory core includes an outer refractory core positioned between the face of the aggregate and the facing;
The fire door according to any one of claims 1-4 .

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