JP6652679B2 - Fire protection refurbished sash - Google Patents

Description

  The present invention relates to a fireproof refurbishment sash for improving a fireproof property while installing a new frame body without removing an existing frame body of a fitting installed at an opening of a building.

Refurbished sashes for retrofitting existing sashes installed in building openings are known. (Patent Document 1)
The refurbished sash of Patent Literature 1 disposes a new frame on the inner periphery of an existing frame, and arranges a heat-expandable refractory material between the new frame and the existing frame. The space between the existing frame and the new frame is closed by a thermally expandable refractory material that has expanded at times, thereby preventing communication between the interior and exterior.

JP-A-2015-94171

However, the refurbished sash of Patent Document 1 described above merely disposes the heat-expandable refractory material between the existing frame and the new frame. Gap between the existing frame and the new frame because the space between the existing frame and the new frame cannot be filled enough. There was such a possibility.
Also, when a new frame is attached to an existing frame via a discard frame, the discard frame may hinder the filling of the intumescent refractory material, and the gap between the existing frame and the new frame may be removed. There was a possibility that smoke and flame could intrude from the space between the existing frame and the abandoned frame because it could not be spread sufficiently.

  The present invention has been made in view of the above circumstances, and it is possible to efficiently close a gap between an existing frame and a new frame during a fire, and to fix the new frame via a waste frame. Even if there is, an object of the present invention is to provide a fire prevention refurbishment sash which can quickly and surely prevent communication between the indoor and the outside.

The present invention is arranged in a discard frame fixed to an existing frame, a new frame fixed to the existing frame via the discard frame, and a gap between the existing frame and the new frame. a heating expansion material, existing frame and discard frame has a contact portion to the indoor side, thermal expansion material, opposite the discarded frame on the interior side of the outer peripheral side prospective surface of the new frame arrangement It has been characterized by Rukoto.
Further, the present invention provides a disposal frame fixed to an existing frame, a new frame fixed to the existing frame via the disposal frame, and a gap between the existing frame and the new frame. The existing frame body and the waste frame have contact portions on the indoor side and the outdoor side, and the heat expandable material is disposed on the indoor side of the outer peripheral projection surface of the new frame body. , And is disposed on the outdoor side of the prospective surface on the outer peripheral side of the new frame body.

  ADVANTAGE OF THE INVENTION According to this invention, the space between the existing frame and the new frame can be efficiently closed, and communication between the indoor and the outside can be prevented.

It is a longitudinal section of a fire prevention refurbishment sash concerning an embodiment of the present invention. It is a cross-sectional view of the fire protection retrofit sash according to the embodiment of the present invention. It is a figure for explaining the fire protection function of the fire protection refurbishment sash concerning the embodiment of the present invention, (a) is a longitudinal section of the upper frame part at the time of normal, and (b) is the upper frame part at the time of fire FIG. It is a figure for explaining the fire prevention function of the fire prevention refurbishment sash concerning the embodiment of the present invention, (a) is a longitudinal section of the lower frame part at the time of normal, and (b) is the lower frame part at the time of fire FIG. It is a figure for explaining the fire protection function of the fire protection refurbishment sash concerning the embodiment of the present invention, (a) is a cross section of a vertical frame part at the time of normal, and (b) is a vertical frame part at the time of fire. FIG. It is a figure for explaining arrangement of a disposal frame of a fireproof renovation sash according to an embodiment of the present invention, and an arrangement of a heating expansion material. FIG. It is a figure for demonstrating arrangement | positioning of the disposal frame of the fire protection remodeling sash which concerns on embodiment of this invention, and a heating expansion material, and is a longitudinal cross-sectional view in the state which omitted the newly installed frame. It is a figure for demonstrating arrangement | positioning of the disposal frame of the fire protection renovation sash which concerns on embodiment of this invention, and a heating expansion material, and is a cross-sectional view in the state which omitted the newly-installed frame. It is a figure for explaining the fire prevention function of the fire prevention refurbishment sash concerning the embodiment of the present invention, (a) is a longitudinal section of the upper frame part which does not have a discarding frame in normal time, (b) is a fire It is a longitudinal cross-sectional view of the upper frame part where there is no discard frame at the time. It is a figure for demonstrating the fire protection function of the fire protection refurbishment sash which concerns on embodiment of this invention, (a) is a longitudinal cross-sectional view of the lower frame part which does not have a discarding frame in normal time, (b) is a fire. It is a longitudinal cross-sectional view of the lower frame part where there is no discarding frame at the time. It is a figure for explaining the fire prevention function of the fire prevention refurbishment sash concerning the embodiment of the present invention, (a) is a cross section of a vertical frame part where there is no discarding frame at the time of normal, (b) is a fire It is a cross-sectional view of the vertical frame part where there is no discarding frame at the time. It is a figure for explaining the fire prevention function of the fire prevention refurbishment sash concerning other embodiments of the present invention, (a) is a cross section of a vertical frame part at the time of normal, and (b) is a vertical section at the time of fire. It is a cross-sectional view of a frame part. It is a figure for explaining the fire protection function of the fire protection refurbishment sash concerning other embodiments of the present invention, and (a) is a cross section of a vertical frame part which does not have a discarding frame in normal time, and (b) FIG. 3 is a cross-sectional view of a vertical frame portion where no waste frame exists in the event of a fire. It is a figure for explaining the fire protection function of the fire protection refurbishment sash concerning other embodiments of the present invention, and (a) and (b) are both transverse cross sections of the upper frame part at the time of normal. It is a figure for explaining the fire prevention function of the fire prevention refurbishment sash concerning other embodiments of the present invention, and both (a) and (b) are transverse cross sections of a lower frame part at the time of normal.

A fireproof retrofit sash according to an embodiment of the present invention will be described with reference to the drawings.
(Overall configuration)
As shown in FIGS. 1 and 2, the fireproof refurbishment sash according to the embodiment of the present invention has a disposal frame 2 fixed to the inner periphery of an existing frame 1 installed at the opening of a building. The new frame 3 is attached, and the remodeling sash can be constructed with almost no processing on the existing frame 1.

(Existing frame)
The existing frame 1 that is renovated by the fire protection remodeling sash according to the present embodiment includes an existing upper frame 11, an existing lower frame 12, an existing left vertical frame 13, and an existing right vertical frame 14, which are formed around the circumference of the existing upper frame 11. In addition, the existing lower frame 12 is provided with upper guide rails 11e and 11f and lower guide rails 12e and 12f which guide the inner and outer sashes (not shown) in a free manner.

As shown in FIG. 1, the existing upper frame 11 of the existing frame 1 is connected to an existing upper frame main body 11a forming an inner peripheral surface of a building opening, and an indoor side end and an outdoor side end of the existing upper frame main body 11a. The indoor side wall 11b and the outdoor side wall 11c to be provided, the jaw 11d extending from the indoor side surface of the indoor side wall 11b to the indoor side, and the upper guide rails 11e and 11f hanging from the inner peripheral surface of the existing upper frame body 11a. And
Further, the existing lower frame 12 of the existing frame body 1 includes an existing lower frame main body 12a forming an inner peripheral surface of a building opening, an indoor side wall 12b standing upright from an indoor side end of the existing lower frame main body 12a, and an indoor side wall. And a jaw 12c extending from the upper end of 12b to the indoor side. Further, the upper surface of the existing lower frame main body 12a is formed as a drain portion inclined downward toward the outside of the room, and a front wall portion 12d extends downward from the outdoor end of the existing lower frame main body 12a. On the inner peripheral surface (upper surface) of the existing lower frame main body 12a, lower guide rails 12e and 12f for guiding an inner sash and an outer sash (not shown) so as to be able to pull freely are provided.

  As shown in FIG. 2, the existing left vertical frame 13 of the existing frame 1 is connected to an existing left vertical frame main body 13a forming an inner peripheral surface of the opening of the building and the indoor side of the existing left vertical frame main body 13a. An indoor side wall 13b, a jaw 13c extending further from the indoor side wall 13b to the indoor side, and an outdoor side wall 13d connected to the outdoor side of the existing left vertical frame body 13a are provided. Note that the configuration of the existing right vertical frame 14 is the same as the configuration of the existing left vertical frame 13, and a description thereof will be omitted.

(Abandoned frame)
As shown in FIG. 1, the dump frame 21 disposed on the inner peripheral surface of the existing upper frame 11 includes a prospective surface portion 21 a disposed on the inner peripheral side of the existing upper frame 11, and the indoor side and the outdoor side of the prospective surface portion 21 a. An indoor-side locking wall 21b and an outdoor-side locking wall 21c extending outwardly (upward) from the outside are formed as a long member having a length equal to or less than a lateral width of a building opening. I have.
Then, the upper surface of the prospective surface portion 21a of the upper disposal frame 21 is brought into contact with the lower ends of the upper guide rails 11e and 11f of the existing upper frame 11 from the inner peripheral side, and the indoor-side locking wall portion 21b and the outdoor-side locking wall portion are provided. 21c is inserted from below into the recess formed by the indoor side wall 11b and the outdoor side wall 11c of the existing upper frame 11, and the indoor side locking wall 21b, the outdoor side locking wall 21c, the indoor side wall 11b, and the outdoor side wall 11c are inserted. Are fixed by fixing means b, b such as screws, so that the upper disposal frame 21 is attached to the existing upper frame 11.

  The lower disposal frame 22 arranged on the inner peripheral side of the existing lower frame 12 has a plurality of support members 221 supported by the lower guide rails 12e of the existing lower frame 12 and a width not more than the width of the building opening in the left-right direction. And a mounting surface member 222 formed of a long member having a length of

As shown in FIG. 2, the left vertical discard frame 23 disposed on the inner peripheral surface of the existing left vertical frame 13 includes a prospective surface portion 23a disposed on the inner peripheral side of the existing left vertical frame 13 and a chamber of the prospective surface portion 23a. An indoor locking wall 23b and an outdoor locking wall 23c extending inward and outward from the inside and the outside are formed as a long member having a length equal to or less than the vertical width of the building opening. ing.
The left vertical discarding frame 23 is configured such that the prospective surface portion 23a is disposed on the inner peripheral side, and the indoor-side locking wall portion 23b and the outdoor-side locking wall portion 23c are provided on the indoor side wall 13b and the outdoor side wall of the existing left vertical frame 13. 13d is inserted from the inner peripheral side into the recess formed by 13d, and the indoor side locking wall 23b and the outdoor side locking wall 23c and the indoor side wall 13b and the outdoor side wall 13d are fixed by fixing means b and b such as screws. By doing so, it is attached to the existing left vertical frame 13.
Note that the configuration of the vertically discarded frame is basically not different between left and right, and the description of the rightly discarded frame 24 is omitted.

(New frame)
A new upper frame 31 constituting the new frame body 3 is disposed on the inner peripheral side of the dump frame 21, and as shown in FIG. 1, a new upper frame main body 31a forming an inner peripheral surface of the repair sash, and a new upper frame. An indoor side wall 31b which is continuously provided and hangs down from the indoor side end of the main body 31a, a bent wall 31c formed by bending the upper end of the indoor side wall 31b toward the indoor side, and approximately the center of the new upper frame main body 31a in the expected direction. A central hanging wall 31d vertically extending downward from the position, an outer guide rail 31e and a screen door rail 31f vertically extending downward from the outdoor side of the new upper frame main body 31a. The upper surface has a plurality of ridges 31g and 31h extending in the longitudinal direction of the new upper frame 31.
The new upper frame 31 is disposed on the expected surface portion 21 a of the upper disposal frame 21 via the spacer 91, and the upper upper frame 31 is disposed in a state where the ridges 31 g and 31 h are in contact with the lower surface of the spacer 91. 21 are fixed together with the spacer 91 by fixing means b such as screws.

The indoor-side end surface of the bent wall 31c of the new upper frame 31 is arranged substantially flush with the indoor side surface of the indoor side wall 11b of the existing upper frame 11 from the lower surface of the bent wall 31c to the indoor-side end surface and the existing upper frame. The airtight tape 81 covers the indoor side surface of the indoor side wall 11b.
Further, the outdoor side of the new upper frame main body 31a of the new upper frame 31 projects more toward the outdoor side than the outdoor side surface of the outdoor wall 11c of the existing upper frame 11, and the outdoor upper end of the new upper frame main body 31a has A fin-like member 71 made of a flame-retardant material is attached. As the flame-retardant material used for the fin-like member, for example, composite fire-resistant PVC, flame-retardant silicon, chloroprene rubber, or the like is used. The fin-like member 71 is composed of a fixing portion 71a fixed to the new upper frame main body 31a and a fin piece 71b protruding from the fixing portion 71a. To prevent rainwater from entering.

As shown in FIG. 1, the newly-installed lower frame 32 constituting the newly-installed frame body 3 is formed in a step-like shape with a lower outdoor side and a higher indoor side, and is disposed above the existing lower frame 12 so as to cover the inner peripheral surface of the repair sash. A new lower frame main body 32a to be formed, an indoor side wall 32b connected to the indoor side end of the new lower frame main body 32a, a front wall portion 32c hanging down from the outdoor side of the new lower frame main body 32a, and a new lower frame main body An inner rail 32d and an outer rail 32e protruding above the upper surface of the front wall portion 32a, a screen lower rail 32f protruding from the outdoor side surface of the front wall portion 32c, and an outdoor side from an upper step portion of the newly formed lower frame main body 32a formed in a step shape. And an airtight material holding wall 32g protruding toward the rear end.
When the new lower frame 32 is constructed, the lower guide rail 12f of the existing lower frame 12 is cut off, and the new lower frame 32 is placed on the upper surface of the existing lower frame 12 from which the lower guide rail 12f is cut off on the outdoor side. At the same time, the indoor side is supported on the upper surface of the lower disposal frame 22, so that it is arranged at the inner periphery (upper) position of the existing lower frame 12 and constructed. The inner side wall 32b of the newly installed lower frame 32 and the inner side wall 12b of the existing lower frame 12 face each other at an interval, and hermetic tape extends from the inner side wall 32b of the new lower frame 32 to the upper surface of the jaw 12c. 82 are provided.
Further, a synthetic resin jaw member 42 is fixedly fastened together with the jaw 12c to the building opening by fixing means b such as a screw on the upper surface of the jaw 12c of the existing lower frame 12 so as to cover the airtight tape 82. I have.

A new left vertical frame 33 constituting the new frame body 3 is disposed on the inner peripheral side of the left vertical discard frame 23, and as shown in FIG. 2, a new left vertical frame main body 33a forming an inner peripheral surface of the repair sash. An indoor side wall 33b extending inward from the indoor side of the new left vertical frame main body 33a, an indoor side expected wall 33c extending further indoors from the indoor side wall 33b, and a new left vertical frame main body 33a. An outdoor wall 33d extending inward from the outdoor end, and a central wall 33e extending inward from a substantially central position of the inner peripheral surface of the new left vertical frame main body 33a in the expected direction. The outer peripheral surface of the new left vertical frame body 33a has a plurality of ridges 33f and 33g extending in the longitudinal direction of the new left vertical frame 33.
The new left vertical frame 33 is disposed on the expected surface portion 23 a of the left vertical discard frame 23 via the spacer 93, and the protrusions 33 f and 33 g are in contact with the inner peripheral surface of the spacer 93. And is fixed together with the spacer 93 to the left vertical discarding frame 23 by fixing means b such as screws.

The indoor-side end face of the indoor-side prospect wall 33c of the new left vertical frame 33 is arranged substantially flush with the indoor side surface of the indoor side wall 13b of the existing left vertical frame 13 from the inner peripheral surface of the indoor-side prospect wall 33c. The inner end face and the indoor side surface of the indoor side wall 13b of the existing left vertical frame 13 are covered with an airtight tape 83.
Further, the outdoor side of the new left vertical frame main body 33a of the new left vertical frame 33 projects outside the outdoor surface of the outdoor wall 13d of the existing left vertical frame 13, and the outdoor end of the new left vertical frame main body 33a. A fin-shaped member 73 made of a flame-retardant material is attached to the outer peripheral surface. The fin-shaped member 73 is composed of a fixing portion 73a fixed to the new left vertical frame 33 and a fin piece 73b protruding from the fixing portion 73a. To prevent rainwater from entering
Note that the configurations of the left and right new vertical frames 33 and 34 are not basically different between the left and right, and the description of the new right vertical frame 34 is omitted.

(Fire protection structure)
The fire protection refurbished sash according to the present embodiment having the above-described configuration includes a fire protection structure for preventing invasion of smoke or flame from a gap between the existing frame 1 and the new frame 3 at the time of fire.
Hereinafter, the fire protection structure of the fire protection refurbished sash according to the present embodiment will be described with reference to FIGS.

As shown in FIG. 3A, the gap s1 formed between the existing upper frame 11 and the new upper frame 31 is located near both ends in the expected direction, that is, near the indoor end and the outdoor end. , A heating expansion material that expands by heating is disposed.
The heating expansion member 51 is arranged on the upper surface of the bent wall 31c of the new upper frame 31 near the indoor end of the gap s1, and the existing upper frame main body 31a of the new upper frame 31 near the outer end of the new room. The heating expansion material 52 is disposed on the upper surface of a portion protruding to the outside of the room from the upper frame 11, and is disposed over the entire length of the newly provided upper frame 31.

Since the bent wall 31c on which the indoor heat-expanding material 51 is disposed is formed at a position higher than the new upper frame main body 31a, the upper surface of the bent wall 31c is located below the expected surface portion 21a of the dump frame 21. The gap formed close to and above the bent wall 31c is formed as a space that is narrower in the vertical direction than other portions of the gap s1.
In addition, the heat-expanding material 52 disposed on the upper surface of the portion of the new upper frame main body 31a protruding to the outside of the room is disposed at a position near the fixing portion 71a of the fin-shaped member 71 fixed to the new upper frame 31, and The fin pieces 71b of the fin-shaped member 71 are arranged above the expanding member 52, so that the outside of the room is positioned above the heated expanding member 52 by the new upper frame 31, the existing upper frame 11, and the fin-shaped member 71. A space s11 that is narrow and wide on the indoor side is formed.

When a fire occurs, as shown in FIG. 3 (b), the heat-expanding material 51 disposed on the indoor side moves toward a relatively narrow space formed above the bent wall 31c by heating. It expands and can reach | attain the prospective surface part 21a of the upper disposal frame 21 immediately, and it can be rapidly filled with the space | interval inside the space s1 of the existing upper frame 11 and the new upper frame 31, and can be closed.
In addition, the heat-expanding material 52 arranged on the outdoor side expands toward the fin-like member 71 arranged above by heating, but the fin-like member 71 made of a flame-retardant material expands the heat-expanding material 52. Since the shape can be maintained without burning out and the heat-expanding material 52 can be prevented from being scattered, the heat-expanding material 52 is formed by the existing frame body 11, the new frame body 31, and the fin-like members 71. It expands densely in the space s11, and the outdoor side of the gap s1 formed between the existing upper frame 11 and the new upper frame 31 can be reliably closed.

As shown in FIG. 4A, the gap s2 formed between the existing lower frame 12 and the new lower frame 32 is near both ends in the expected direction, that is, near the indoor end and the outdoor end. , A heating expansion material that expands by heating is disposed.
In the vicinity of the indoor side end of the gap s2, the heating expansion material 53 is disposed on the indoor side surface of the indoor side wall 32b of the new lower frame 32, and in the vicinity of the indoor outside end of the front wall 32c of the new lower frame 32. The heating expansion material 54 is disposed on the side surface, and is disposed over the entire length of the newly provided lower frame 32.

The indoor side wall 32b on which the indoor-side heat-expanding material 53 is disposed is opposed to the mounting surface member 222 of the lower disposal frame 22 and the indoor side wall 12b of the existing lower frame 12, and is opposed to the new lower frame 32. The gap formed between the indoor side wall 32b and the indoor side wall 12b of the existing lower frame 12 is formed as a narrow space in the expected direction.
The front wall portion 32c of the newly installed lower frame 32 on which the outdoor-side heating expansion material 54 is arranged is opposed to the front wall portion 12d of the existing lower frame 12 in a state of being close to the front wall portion 12d. The gap formed between the portion 32c and the front wall portion 12d of the existing lower frame 12 is formed as a narrow space in the expected direction.

When a fire occurs, as shown in FIG. 4 (b), the heating expansion material 53 arranged on the indoor side expands toward the indoor side wall 12b of the existing lower frame 12 by heating, and immediately the existing lower frame. 12 indoor side walls 12b. The gap formed between the indoor side wall 32b of the new lower frame 32 and the indoor side wall 12b of the existing lower frame 12 is hermetically sealed by the airtight tape 82, so that the gap does not leak to the indoor side. And the newly installed lower frame 32 is densely inflated toward the indoor side of the gap s2 and can be quickly and reliably closed.
Further, the heating expansion material 54 arranged on the outdoor side expands toward the front wall portion 12d of the existing lower frame 12 by heating, and immediately the front wall portion 32c of the new lower frame 32 and the front wall portion of the existing lower frame 12 are heated. 12d, the space outside the space s2 between the new lower frame 32 and the existing lower frame 12 can be quickly and reliably closed.

As shown in FIG. 5A, the gap s3 formed between the existing left vertical frame 13 and the new left vertical frame 33 is near both ends in the expected direction, that is, near the indoor end and the outdoor end. A heating expansion material that expands by heating is disposed in the vicinity.
In the vicinity of the indoor side end of the gap s3, the heating expansion material 55 is disposed on the outer peripheral surface of the indoor-side prospective wall 33c of the new left vertical frame 33, and in the vicinity of the indoor outside end, the new left vertical frame 33 is newly formed. A heating expansion material 56 is arranged on the outer peripheral surface of a portion of the vertical frame main body 33 a projecting outside from the existing left vertical frame 13, and is arranged over the entire length of the new left vertical frame 33.

The indoor-side estimated wall 33c in which the indoor-side heat-expanding material 55 is arranged opposes a contact portion between the indoor side wall 13b of the existing left vertical frame 13 and the indoor-side locking wall 23b of the left vertical discarded frame 23. I have.
Further, the heating expansion member 56 arranged outside the new left vertical frame main body 33a is disposed at a position near the fixing portion 73a of the fin-like member 73, and the fin of the fin-like member 73 Due to the arrangement of the piece 73b, a space s31 in which the outdoor side is narrow and the indoor side is wide is formed by the new left vertical frame 33, the existing left vertical frame 13, and the fin-shaped member 73 at the outer peripheral position of the heating expansion material 56. .

When a fire occurs, as shown in FIG. 5 (b), the heating and expanding member 55 disposed on the indoor side is heated by the heating so that the indoor side wall 13b of the existing left vertical frame 13 and the indoor side wall of the left vertical discard frame 23 are heated. The smoke expands toward the contact portion with the stop wall portion 23b, and smoke not only between the existing left vertical frame 13 and the new left vertical frame 33 but also between the existing left vertical frame 13 and the left vertical discard frame 23. And the intrusion of flame can be quickly prevented, and the indoor side of the gap s3 between the existing left vertical frame 13 and the new left vertical frame 33 can be more reliably closed.
Further, the heat-expanding material 56 arranged on the outdoor side expands toward the fin-like members 73 arranged on the outer periphery by heating, but the fin-like members 73 made of a flame-retardant material expand the heat-expanding material 56. Since the shape can be maintained without burning out, and the heat-expanding material 56 can be prevented from scattering, the heat-expanding material 56 is formed by the existing left vertical frame 13, the new left vertical frame 33, and the fin-shaped member 73. The space s <b> 3 is densely expanded into the space s <b> 31, and the outdoor side of the gap s <b> 3 formed between the existing left vertical frame 13 and the new left vertical frame 33 can be reliably closed.

As described above, the fire protection refurbished sash according to the present embodiment has a heat expansion material that is efficiently filled between the existing frame 1 and the new frame 3, and has an effective fire protection structure. ing.
Further, the fire protection retrofit sash according to the present embodiment is provided with a further fire protection structure at the four corners where there is no disposal frame. This will be described below with reference to FIGS.

In the fireproof refurbishment sash according to the present embodiment, the upper disposal frame 21, the lower disposal frame 22, and the left and right vertical disposal frames 23, 24 are not arranged over the entire length of the fitting in the left-right direction and the up-down direction. As shown in FIG. 6, there is an area where the discard frame 2 is not arranged at the corner.
Therefore, the fireproof refurbished sash of this embodiment suppresses the invasion of flames and smoke in the area by disposing the heat-expanding materials 61 to 68 on both sides of the disposal frame 2 in addition to the heat-expanding materials 51 to 56 described above. are doing.

As shown in FIGS. 7 and 8, the heat-expanding members 61 and 62 disposed on the left and right sides of the upper disposal frame 21 are disposed on the outdoor side surface of the indoor side wall 11 b of the existing upper frame 11. It is provided from both ends to both ends of the existing upper frame 11.
For this reason, as shown in FIG. 9A, in a region where the upper frame 21 does not exist, the gap s5 formed between the existing upper frame 11 and the new upper frame 31 has the above-described indoor thermal expansion. A fire prevention structure is formed by the material 51, the heating expansion material 52 on the outdoor side, and the heating expansion materials 61 and 62 arranged on the outdoor surface of the indoor side wall 11b of the existing upper frame 11.

When a fire occurs, as shown in FIG. 9 (b), the heat-expanding material 51 on the indoor side and the heat-expanding materials 61 and 62 arranged on the outdoor side of the indoor side wall 11b of the existing upper frame 11 expand. The heat expansion members 51, 61, 62 sufficiently fill the gap formed on the indoor side of the upper guide rail 11e of the existing upper frame 11, and the existing upper frame 11 and the new upper frame 31 are integrated. Can be closed on the indoor side of the gap s5 formed therebetween.
Further, as described above, the heat-expanding material 52 arranged on the outdoor side expands densely in the space s11 formed by the existing frame body 11, the new frame body 31, and the fin-like member 71, and the existing upper frame 11 And the new upper frame 31 can reliably close the outdoor side of the gap s5 that is formed.

As shown in FIGS. 7 and 8, the heating expansion materials 63 and 64 disposed on the left and right sides of the lower disposal frame 22 are disposed on the outdoor side surface of the indoor side wall 12 b of the existing lower frame 12. It is provided from both ends of the mounting surface member 222 to both ends of the existing lower frame 12.
Therefore, as shown in FIG. 10A, in the area where the lower frame 22 does not exist, the gap s6 formed between the existing lower frame 12 and the new lower frame 32 has the above-described indoor thermal expansion. A fire prevention structure is formed by the material 53, the heating expansion material 54 on the outdoor side, and the heating expansion materials 63 and 64 arranged on the outdoor surface of the indoor side wall 12b of the existing lower frame 12.

When a fire occurs, as shown in FIG. 10B, the heating expansion material 53 on the indoor side and the heating expansion materials 63 and 64 disposed on the outdoor side surface of the indoor side wall 12b of the existing lower frame 12 expand. In this manner, the gap formed on the indoor side of the lower guide rail 12e of the existing lower frame 12 is sufficiently filled with the heat expansion materials 53, 63, 64, and the existing lower frame 12 and the new lower frame 32 are integrated. Can be closed on the indoor side of the gap s6 formed between the gap s6.
Further, as described above, the heat-expanding member 54 arranged on the outdoor side expands densely in the gap formed between the front wall portion 32c of the new lower frame 32 and the front wall portion 12d of the existing lower frame 12, The outdoor side of the gap s6 between the new lower frame 32 and the existing lower frame 12 can be quickly and reliably closed.

As shown in FIGS. 7 and 8, the heat-expanding members 65 and 66 disposed on both the upper and lower sides of the left vertical discard frame 2 are disposed on the outdoor side surface of the indoor side wall 13b of the left existing vertical frame 13, and are discarded left vertically. It is provided from the upper and lower end positions of the frame 23 to both ends of the existing vertical frame 13.
Therefore, as shown in FIG. 11A, in the region where the left vertical discard frame 23 does not exist, the gap s7 formed between the left existing vertical frame 13 and the left new vertical frame 33 includes the indoor side described above. The heat-expanding material 55 and the outdoor-side heat-expanding material 56 and the heat-expanding materials 65 and 66 disposed on the outdoor-side surface of the indoor side wall 13b of the left vertical frame 13 form a fire prevention structure.

When a fire occurs, as shown in FIG. 11B, the heating expansion material 55 on the indoor side and the heating expansion materials 65 and 66 disposed on the outdoor side surface of the indoor side wall 13b of the left existing vertical frame 13 include: By expanding and integrating, the indoor side of the gap s7 formed between the left existing vertical frame 13 and the left new vertical frame 33 can be filled and closed.
Further, as described above, the heating expansion material 56 arranged on the outdoor side expands densely in the space s31 formed by the existing left vertical frame 13, the new left vertical frame 33, and the fin-like member 73, and The outdoor side of the gap s7 formed between the vertical frame 13 and the new left vertical frame 33 can be reliably closed.

  As described above, in the fireproof refurbishment sash of the present embodiment, the heat-expanding material is disposed on the outdoor side surface of the indoor side wall of the existing frame 1 in the area near both ends of the newly-installed frame where no waste frame is disposed. Therefore, it expands integrally with the heat-expanding material arranged on the indoor side of the new frame 3 and is sufficiently filled with the heat-expanding material even if there is a large gap between the existing frame and the new frame. The gap between the existing frame and the new frame can be reliably closed.

Note that the present invention is not limited to the configuration of the fire protection refurbished sash according to the above embodiment, and the fire protection structure can be changed according to the condition of the existing frame.
For example, as shown in FIG. 12, in the case of a fire protection refurbished sash having existing vertical frames 13 and 14 that are wide in the prospective direction, the indoor side provided on the outer peripheral surface of the indoor prospective wall 33 c of the new left vertical frame 33. The heat-expanding material 55 of the above-mentioned type is opposed to the inner peripheral surface of the left vertical discard frame 23, and abuts against the inner peripheral surface of the left vertical discard frame 23 by expansion, whereby a fire prevention structure on the indoor side can be formed.
As shown in FIG. 13, in the regions at both ends where the vertical discard frame 23 does not exist, in addition to the indoor heat-expanding material 55, the heat-expandable material 65 is provided on the outdoor side surface of the indoor side wall 13 b of the existing left vertical frame 13. , 66 are arranged, and a heating expansion material 55 provided on the outer peripheral surface of the indoor-side expected wall 33c of the new left vertical frame 33 and a heating expansion material 65, 66 provided on the outdoor side surface of the indoor side wall 13b of the existing left vertical frame 13 are provided. Can be integrated by expansion, and the space on the indoor side can be filled to close the gap between the existing frame and the new frame.

Further, in the fire protection structure of the upper frame portion, as shown in FIG. 14 (a), a pocket portion 31i for disposing the heating and expanding material 51 may be provided on the upper surface of the bent wall 31c of the new upper frame 31. As shown in (b), the heat-expanding material 51 may be arranged by providing a pocket portion 31i for disposing the heat-expanding material 51 on the indoor upper surface of the new upper frame main body 31a of the new upper frame 31. The provision of the pocket portion 31i can prevent the heat-expandable material 51 from falling off.
Further, as shown in FIG. 15A, in the fire protection structure of the lower frame portion, the heating expansion material 54 on the outdoor side is not provided on the indoor side surface of the front wall portion 32 c of the new lower frame 32, but the new lower frame 32 is provided. May be arranged on the outdoor lower surface of the newly provided lower frame main body 32a.
Furthermore, the new frame 3 constructed by the fireproof refurbishment sash of the present invention is not limited to a frame having a stepped lower frame, and for example, as shown in FIG. May be configured as a refurbished sash whose height is higher than the height of the inner rail on the indoor side.
In such a case, it is preferable to use the disposable frame 22 which is wide on the upper surface of the inner and outer rails in the expected direction.

  As described above, in the arson refurbishment sash of the present embodiment, when a fire occurs, the heat-expanding material disposed on the newly-installed frame is not only between the existing frame and the newly-installed frame, but also on the existing frame. Covering the contact area between the material and the discarding frame, it can quickly prevent smoke and flame from entering between the existing frame, the vertical discarding frame, and the new frame, and reduce the gap between the existing frame and the new frame. The closure can be performed more reliably.

1: Existing frame body 11: Existing upper frame 11a: Existing upper frame body 11b: Indoor side wall 11c: Outdoor side wall 11d: Jaw portion 11e: Upper guide rail 11f: Upper guide rail 12: Existing lower frame 12a: Existing lower frame body 12b : Interior wall 12c: Jaw 12d: Front wall 12e: Lower guide rail 12f: Lower guide rail 13: Existing left vertical frame 13a: Existing left vertical frame main body 13b: Indoor side wall 13c: Jaw 13d: Outside wall 14: Existing Right vertical frame 14b: Indoor side wall 2: Discard frame 21: Top discard frame 21a: Expected surface portion 21b: Indoor side locking wall portion 21c: Outdoor side locking wall portion 22: Lower discard frame 221: Support member 222: Mounting surface Member 23: Left vertical discard frame 23a: Probable surface portion 23b: Indoor side locking wall portion 23c: Outdoor side locking wall portion 24: Vertical discarding frame 3: Newly constructed frame body 31: Newly constructed upper frame 31a: Newly constructed upper frame body 31b: Inner wall 31c: Bent wall 31d: Central hanging wall 31e: Outer guide rail 31f: Screen door rail 31g: Ridge 31h: Ridge 31i: Pocket 32: New lower frame 32a: New lower frame main body 32b: Indoor side wall 32c : Front wall 32d: Inner rail 32e: Outer rail 32f: Lower rail 32g: Airtight material holding wall 33: New left vertical frame 33a: New left vertical frame main body 33b: Indoor side wall 33c: Indoor side expected wall 33d: Outdoor side wall 33e: Central wall 33f: Ridge 33g: Ridge 34: New vertical frame 42: Jaw members 51 to 56: Heat-expanding materials 61 to 66: Heat-expanding materials 71, 73: Fin-like members 81 to 83: Airtight tape 91, 93: Spacer

Claims (2)

A discarding frame fixed to the existing frame, a new frame fixed to the existing frame via the discarding frame, and a heat-expanding material arranged in a gap between the existing frame and the new frame. With
The existing frame and the discard frame have an abutting part on the indoor side,
Thermal expansion material, fireproof renovation sash, characterized in that that are disposed to face the discarded frame on the interior side of the outer peripheral side prospective surface of the new frame. A discarding frame fixed to the existing frame, a new frame fixed to the existing frame via the discarding frame, and a heat-expanding material arranged in a gap between the existing frame and the new frame. With
The existing frame and the disposal frame have contact portions on the indoor side and the outdoor side,
The heat-expanding material is arranged on the indoor side of the outer peripheral projection surface of the new frame opposite to the disposal frame, and is arranged on the outer periphery of the outer projection surface of the new frame.
A fire protection refurbished sash characterized by the following.

Images