JP6594824B2 - Fireproof refurbished sash - Google Patents

Description

  The present invention relates to a fireproof / renovated sash for improving a fireproof property while renovating a joinery by installing a new frame without removing an existing frame of the joinery installed in a building opening.

Remodeling sashes for remodeling existing sashes installed in building openings are known. (Patent Document 1)
The refurbishment sash of this patent document 1 arranges a new frame body on the inner periphery of an existing frame body, and arranges a thermally expandable refractory material between the new frame body and the existing frame body. The thermally expandable refractory material that sometimes expands blocks the existing frame body and the new frame body to prevent indoor and outdoor communication.

JP2015-94171A

However, the refurbished sash of the above-mentioned Patent Document 1 simply arranges the heat-expandable refractory material between the existing frame body and the new frame body. It is not possible to fully fill the space between the new frame and the gap, and there is a gap, and it takes time for the heat-expandable refractory material to fill between the existing frame and the new frame. There was such a possibility.
In addition, when a new frame is attached to an existing frame via a discarded frame, the discarded frame may hinder the filling of the inflatable refractory material, and the gap between the existing frame and the new frame is There was a possibility that smoke and flame could invade between the existing frame and the discarded frame because it could not be spread sufficiently.

  The present invention has been made in view of the above circumstances, and can efficiently close a space between an existing frame and a new frame at the time of a fire, and the new frame is fixed through a discarded frame. Even if it exists, it aims at providing the fire-proof remodeling sash which can prevent communication indoors and outdoors quickly and reliably.

  The present invention is disposed in a gap between a discarded frame fixed to an existing frame, a new frame fixed to the existing frame via the discarded frame, and the existing frame. And a heating expansion material. The heating expansion material is disposed in the new frame body, and is disposed at a position facing the contact portion between the existing frame body and the disposal frame.

  ADVANTAGE OF THE INVENTION According to this invention, between the existing frame and a new frame can be blocked | closed efficiently, and indoor and outdoor communication can be prevented.

It is a longitudinal cross-sectional view of the fire prevention remodeling sash which concerns on embodiment of this invention. It is a cross-sectional view of the fireproof remodeling sash which concerns on embodiment of this invention. It is a figure for demonstrating the fire prevention function of the fire protection renovation sash which concerns on embodiment of this invention, (a) is a longitudinal cross-sectional view of the upper frame part at the time of normal, (b) is the upper frame part at the time of a fire FIG. It is a figure for demonstrating the fire prevention function of the fire protection renovation sash which concerns on embodiment of this invention, (a) is a longitudinal cross-sectional view of the lower frame part at the time of normal, (b) is the lower frame part at the time of a fire FIG. It is a figure for demonstrating the fire prevention function of the fire protection renovation sash based on embodiment of this invention, (a) is a cross-sectional view of the vertical frame part at the time of normal, (b) is the vertical frame part at the time of a fire FIG. It is a figure for demonstrating arrangement | positioning of the disposal frame and heating expansion | swelling material of a fire protection remodeling sash which concerns on embodiment of this invention, and shows the arrangement | positioning state of a disposal frame and heating expansion | swelling material when seeing a fire prevention remodeling sash from the indoor side. FIG. It is a figure for demonstrating arrangement | positioning of the throwing-out frame and heating expansion | swelling material of the fire protection renovation sash which concerns on embodiment of this invention, and is a longitudinal cross-sectional view of the state which excluded the newly installed frame. It is a figure for demonstrating arrangement | positioning of the throwing-out frame and heating expansion | swelling material of the fire protection renovation sash which concerns on embodiment of this invention, and is a cross-sectional view of the state which excluded the newly installed frame. It is a figure for demonstrating the fire prevention function of the fire protection renovation sash which concerns on embodiment of this invention, (a) is a longitudinal cross-sectional view of the upper frame part in which the discard frame in the normal time does not exist, (b) is a fire It is a longitudinal cross-sectional view of the upper frame part in which the discard frame of time does not exist. It is a figure for demonstrating the fire prevention function of the fire protection renovation sash which concerns on embodiment of this invention, (a) is a longitudinal cross-sectional view of the lower frame part in which the discard frame in the normal time does not exist, (b) is a fire It is a longitudinal cross-sectional view of the lower frame part in which the discard frame of time does not exist. It is a figure for demonstrating the fire prevention function of the fire protection renovation sash which concerns on embodiment of this invention, (a) is a cross-sectional view of the vertical frame part in which the discard frame in the normal time does not exist, (b) is a fire It is a cross-sectional view of a vertical frame portion where there is no discard frame. It is a figure for demonstrating the fire prevention function of the fire protection renovation sash which concerns on other embodiment of this invention, (a) is a cross-sectional view of the vertical frame part at the normal time, (b) is the vertical cross section at the time of a fire It is a cross-sectional view of a frame part. It is a figure for demonstrating the fireproof function of the fireproof renovation sash based on other embodiment of this invention, (a) is a cross-sectional view of the vertical frame part in which the discard frame does not exist at the normal time, (b) [FIG. 2] is a cross-sectional view of a vertical frame portion where there is no discarded frame at the time of fire. It is a figure for demonstrating the fireproof function of the fireproof renovation sash which concerns on other embodiment of this invention, (a) (b) is a cross-sectional view of the upper frame part at the time of normal. It is a figure for demonstrating the fireproof function of the fireproof renovation sash which concerns on other embodiment of this invention, (a) (b) is a cross-sectional view of the lower frame part at the time of normal.

A fireproof 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 discard frame 2 fixed to the inner periphery of an existing frame 1 installed in a building opening, and through the discard frame 2. A new frame 3 is attached, and the renovated sash can be constructed with almost no processing on the existing frame 1.

(Existing frame)
The existing frame 1 refurbished by the fireproof renovation sash according to the present embodiment is formed by assembling the existing upper frame 11, the existing lower frame 12, the existing left vertical frame 13 and the existing right vertical frame 14 on four sides. In addition, the existing lower frame 12 is provided with upper guide rails 11e and 11f and lower guide rails 12e and 12f that guide the inner and outer shojis (not shown) to be freely drawn.

As shown in FIG. 1, the existing upper frame 11 of the existing frame 1 is connected to the existing upper frame main body 11a that forms the inner peripheral surface of the building opening, and the indoor side end and the outdoor side end of the existing upper frame main body 11a. Indoor side wall 11b and outdoor side wall 11c provided, jaw portion 11d extending from the indoor side surface of indoor side wall 11b to the indoor side, and upper guide rails 11e and 11f suspended from the inner peripheral surface of existing upper frame body 11a And.
The existing lower frame 12 of the existing frame 1 includes an existing lower frame main body 12a that forms the inner peripheral surface of the building opening, an indoor side wall 12b that stands from the indoor side end of the existing lower frame main body 12a, and an indoor side wall. And a jaw portion 12c extending from the upper end of 12b to the indoor side. Furthermore, the upper surface of the existing lower frame main body 12a is formed as a draining portion that is inclined downward toward the outdoor side, and the front wall portion 12d is suspended downward from the outdoor side 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 are provided for guiding the inner and outer shojis (not shown) to be freely drawn.

  As shown in FIG. 2, the existing left vertical frame 13 of the existing frame 1 is connected to the existing left vertical frame main body 13a that forms the inner peripheral surface of the building opening and the indoor side of the existing left vertical frame main body 13a. An indoor side wall 13b, a jaw portion 13c extending further indoors from the indoor side wall 13b, and an outdoor side wall 13d connected to the outdoor side of the existing left vertical frame main body 13a. 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.

(Discarded frame)
As shown in FIG. 1, the upper discard frame 21 disposed on the inner peripheral surface of the existing upper frame 11 includes the prospective surface portion 21 a disposed on the inner peripheral side of the existing upper frame 11, the indoor side and the outdoor side of the prospective surface portion 21 a. Is formed as a long member having a length equal to or less than the found width dimension in the left-right direction of the building opening. Yes.
Then, the upper surface of the prospective surface portion 21a of the upper discard 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. 21c is inserted from below into a 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 portion 21b, the outdoor side locking wall portion 21c, the indoor side wall 11b, and the outdoor side wall 11c. Are fixed by fixing means b, b such as screws, so that the upper discard frame 21 is attached to the existing upper frame 11.

  The lower discard frame 22 disposed on the inner peripheral side of the existing lower frame 12 includes a plurality of support members 221 supported by the lower guide rails 12e of the existing lower frame 12, and a horizontal width of the building opening or less. The mounting surface member 222 is formed on a plurality of support members 221 made of a long member having a length of 1 mm.

As shown in FIG. 2, the left vertical discard frame 23 arranged on the inner peripheral surface of the existing left vertical frame 13 is a chamber of the prospective surface portion 23a and the prospective surface portion 23a arranged on the inner peripheral side of the existing left vertical frame 13. It is composed of an indoor-side locking wall portion 23b and an outdoor-side locking wall portion 23c extending in the outer peripheral direction from the inside and the outdoor side, and is formed as a long member having a length equal to or less than the vertical width of the building opening. ing.
The left vertical discard frame 23 has the indoor side locking wall portion 23b and the outdoor side locking wall portion 23c arranged on the inner peripheral side of the prospective surface portion 23a, and 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, and the indoor side locking wall 23b and the outdoor side locking wall 23c are fixed to the indoor side wall 13b and the outdoor side wall 13d 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 the left and right, and description of the vertically discarded frame 24 on the right side is omitted.

(New frame)
The new upper frame 31 constituting the new frame 3 is arranged on the inner peripheral side of the upper discard frame 21, and as shown in FIG. 1, a new upper frame main body 31a that forms the inner peripheral surface of the repair sash, and the new upper frame An indoor side wall 31b that is connected to the indoor side end of the main body 31a and hangs down, a bent wall 31c that is formed by bending the upper end of the indoor side wall 31b to the indoor side, and an approximate center in the expected direction of the new upper frame main body 31a A central hanging wall 31d suspended downward from the position, and an outer guide rail 31e and a screen door rail 31f suspended downward from the outdoor side of the new upper frame body 31a. On the upper surface, there are protrusions 31g, 31h extending in the longitudinal direction of the new upper frame 31.
The new upper frame 31 is arranged with respect to the prospective surface portion 21 a of the upper discard frame 21 via the spacer 91, and the upper discard frame 31 is in a state where the protrusions 31 g and 31 h are in contact with the lower surface of the spacer 91. 21 is fastened together with a spacer 91 together with a fixing means b such as a screw.

The indoor side end surface of the bent wall 31c of the new upper frame 31 is disposed substantially flush with the indoor side surface of the indoor side wall 11b of the existing upper frame 11 in the expected direction, and from the lower surface of the bent wall 31c to the indoor side end surface and the existing upper frame. The indoor side wall 11b of the 11 indoor side walls is covered with an airtight tape 81.
Further, the outdoor side of the newly installed upper frame body 31a of the newly installed upper frame 31 protrudes to the outdoor side from the outdoor side surface of the outdoor side wall 11c of the existing upper frame 11, and the upper surface of the outdoor upper end of the newly installed upper frame body 31a 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 fireproof PVC, flame retardant silicon, chloroprene rubber, or the like is used. The fin-shaped member 71 includes a fixing portion 71a fixed to the new upper frame body 31a and a fin piece 71b protruding from the fixing portion 71a. The fin piece 71b comes into contact with the outdoor side surface of the existing upper frame 11 from the outside. Prevents intrusion of rainwater, etc.

As shown in FIG. 1, the new lower frame 32 constituting the new frame 3 is formed in a stepped 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. New lower frame main body 32a to be formed, indoor side wall 32b connected to the indoor side end of new lower frame main body 32a, front wall portion 32c suspended from the outdoor side of new lower frame main body 32a, and new lower frame main body An inner rail 32d and an outer rail 32e projecting upward from the upper surface of 32a, a screen door lower rail 32f projecting from the outdoor side surface of the front wall portion 32c, and an outer side from the upper step portion of the newly installed lower frame main body 32a formed in a step shape. And an airtight material holding wall 32g protruding toward the surface.
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 with the lower guide rail 12f cut out of the outdoor side. At the same time, the indoor side is supported by the upper surface of the bottom-removed frame 22, and is arranged and installed at the inner periphery (upper) position of the existing lower frame 12. The indoor side wall 32b of the newly installed lower frame 32 and the indoor side wall 12b of the existing lower frame 12 face each other with a space therebetween, and an airtight tape extends from the indoor side wall 32b of the newly installed lower frame 32 to the upper surface of the jaw 12c. 82 is provided.
Further, a synthetic resin jaw member 42 is fastened together with the jaw 12c together with the jaw 12c to the building opening on the upper surface of the jaw 12c of the existing lower frame 12 so as to cover the airtight tape 82. Yes.

The new left vertical frame 33 constituting the new frame 3 is arranged 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 that forms the inner peripheral surface of the repair sash, The indoor side wall 33b extending in the inner circumferential direction from the indoor side of the new left vertical frame main body 33a, the indoor side prospective wall 33c extending further indoors from the indoor side wall 33b, and the new left vertical frame main body 33a An outdoor side wall 33d that extends in the inner peripheral direction from the outdoor side end, and a central wall 33e that extends in the inner peripheral direction from a substantially central position in the prospective direction of the inner peripheral surface of the new left vertical frame main body 33a. In addition, on the outer peripheral surface of the new left vertical frame main body 33a, a plurality of protrusions 33f and 33g extending in the longitudinal direction of the new left vertical frame 33 are provided.
The new left vertical frame 33 is arranged with respect to the prospective 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. Then, it is fixed to the left vertical discard frame 23 together with the spacer 93 by fastening means b such as screws.

The indoor side end surface of the indoor side prospective 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 in the prospective direction, and the room extends from the inner peripheral surface of the indoor side prospective wall 33c. The inner end surface and the indoor side surface of the indoor side wall 13 b 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 protrudes to the outdoor side from the outdoor side surface of the outdoor side wall 13d of the existing left vertical frame 13, and the outdoor outer end of the new left vertical frame main body 33a. A fin-like member 73 made of a flame retardant material is attached to the outer peripheral surface of the part. The fin-shaped member 73 includes a fixing portion 73a fixed to the newly provided left vertical frame 33 and a fin piece 73b protruding from the fixing portion 73a. The fin piece 73b is in contact with the outdoor side surface of the existing left vertical frame 13 so as to be external. Prevents intrusion of rainwater, etc.
Note that the configuration of the left and right newly installed vertical frames 33 and 34 is basically not different between the left and right, and the description of the newly installed right vertical frame 34 is omitted.

(Fireproof structure)
The fireproof remodeling sash according to the present embodiment having the above-described configuration includes a fireproof structure for preventing intrusion of smoke and flame from the gap between the existing frame body 1 and the new frame body 3 in the event of a fire.
Below, the fire-proof structure of the fire-proof renovation sash which concerns on this embodiment is demonstrated with reference to FIG.

In the gap s1 formed between the existing upper frame 11 and the new upper frame 31, as shown in FIG. 3 (a), near both ends in the prospective direction, that is, near the indoor side end and near the outdoor end. A heating expansion material that expands by heating is disposed.
In the vicinity of the indoor side end portion in the gap s1, the heating expansion material 51 is disposed on the upper surface of the bent wall 31c of the newly installed upper frame 31, and the newly installed upper frame body 31a of the newly installed upper frame 31 is provided in the vicinity of the outer end portion of the same room. The heating expansion material 52 is disposed on the upper surface of the portion protruding to the outdoor side from the upper frame 11, and all of them are disposed over the entire length of the new upper frame 31.

Since the bent wall 31c on which the heating expansion material 51 on the indoor side is disposed is formed at an upper position compared to the newly installed upper frame main body 31a, the upper surface of the bent wall 31c is on the lower surface of the prospective surface portion 21a of the upper discard frame 21. The gap formed close to the bent wall 31c is formed as a space that is narrower in the vertical direction than the other part of the gap s1.
In addition, the heating expansion material 52 disposed on the upper surface of the part protruding to the outdoor side of the new upper frame body 31a is disposed in the vicinity of the fixing portion 71a of the fin-like member 71 fixed to the new upper frame 31, and is heated. Since the fin piece 71 b of the fin-like member 71 is disposed above the inflatable material 52, the outdoor side is located above the heat-expandable material 52 by the new upper frame 31, the existing upper frame 11, and the fin-like member 71. A narrow space s11 on the indoor side is formed.

When a fire occurs, as shown in FIG. 3 (b), the heating expansion material 51 arranged on the indoor side is directed to a relatively vertically narrow space formed above the bent wall 31c by heating. It expands and can immediately reach the prospective surface portion 21a of the upper discard frame 21, and can be filled and closed quickly in the room inside the gap s1 between the existing upper frame 11 and the new upper frame 31.
Moreover, although the heating expansion material 52 arrange | positioned on the outdoor side expands toward the fin-shaped member 71 arrange | positioned upwards by heating, the heating expansion material 52 expands the fin-shaped member 71 which consists of a flame-retardant material. Since the shape can be maintained without being burned out and the heated expansion material 52 can be prevented from scattering, the heating expansion material 52 is formed by the existing frame body 11, the new frame body 31, and the fin-shaped member 71. It is possible to reliably close the outdoor side of the gap s1 formed between the existing upper frame 11 and the newly installed upper frame 31 by inflating closely into the space s11.

In the gap s2 formed between the existing lower frame 12 and the new lower frame 32, as shown in FIG. 4A, in the vicinity of both ends in the prospective direction, that is, in the vicinity of the indoor side end portion and the outdoor side end portion. A heating expansion material that expands by heating is disposed.
In the vicinity of the indoor side end portion in the gap s2, the heating expansion material 53 is arranged on the indoor side surface of the indoor side wall 32b of the new lower frame 32, and in the vicinity of the outdoor side end portion, the interior of the front wall portion 32c of the new lower frame 32 A heat expansion material 54 is disposed on the side surface, and all of them are disposed over the entire length of the newly installed lower frame 32.

The indoor side wall 32b on which the indoor heating expansion material 53 is disposed is opposed to the placement surface member 222 of the lower disposal frame 22 and the indoor side wall 12b of the existing lower frame 12, and A gap formed by 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 prospective direction.
Further, the front wall portion 32c of the newly installed lower frame 32 on which the outdoor heating expansion material 54 is disposed is opposed to the front wall portion 12d of the existing lower frame 12 so as to face the front wall of the newly installed lower frame 32. A gap formed by the portion 32c and the front wall portion 12d of the existing lower frame 12 is formed as a narrow space in the prospective direction.

When a fire occurs, as shown in FIG. 4B, 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 can be reached. The gap formed between the indoor side wall 32b of the newly installed 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 existing lower frame 12 does not leak into the indoor side. And the newly installed lower frame 32 can be inflated densely into the indoor side of the gap s2, and can be quickly and reliably closed.
Further, the heating expansion material 54 disposed 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. Therefore, the outdoor side of the gap s2 between the newly installed lower frame 32 and the existing lower frame 12 can be quickly and surely closed.

In the gap s3 formed between the existing left vertical frame 13 and the new left vertical frame 33, as shown in FIG. 5A, in the vicinity of both ends in the prospective direction, that is, in the vicinity of the indoor side end portion and the outdoor side end portion. A heating expansion material that expands by heating is disposed in the vicinity.
In the vicinity of the indoor side end portion in 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 outdoor side end portion of the new left vertical frame 33 The thermal expansion material 56 is disposed on the outer peripheral surface of the portion of the vertical frame main body 33 a that protrudes to the outdoor side of the existing left vertical frame 13, and all of them are disposed over the entire length of the new left vertical frame 33.

The indoor side prospective wall 33c on which the indoor heating expansion material 55 is disposed is opposed to a contact portion between the indoor side wall 13b of the existing left vertical frame 13 and the indoor side locking wall portion 23b of the left vertical discard frame 23. Yes.
Further, the heating expansion material 56 disposed on the outdoor side of the new left vertical frame main body 33 a is disposed in the vicinity of the fixing portion 73 a of the fin-like member 73, and the fin of the fin-like member 73 is disposed on the outer periphery of the heating expansion member 56. By arranging the piece 73b, a space s31 having a narrow outdoor side and a wide indoor side is formed at the outer peripheral position of the heating expansion material 56 by the new left vertical frame 33, the existing left vertical frame 13 and the fin-like member 73. .

In the event of a fire, as shown in FIG. 5 (b), the heating expansion material 55 arranged on the indoor side causes the indoor side wall 13b of the existing left vertical frame 13 and the left vertical discard frame 23 to be connected to the indoor side by heating. Swells toward the contact portion with the stop wall portion 23b, and smoke from 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 a flame can be prevented quickly, 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 heating expansion material 56 disposed on the outdoor side expands toward the fin-shaped member 73 disposed on the outer periphery by heating, but the heating expansion material 56 expands in the fin-shaped member 73 made of a flame-retardant material. Since the shape can be maintained without being burned out and the heating expansion material 56 can be prevented from scattering, the heating expansion material 56 is formed by the existing left vertical frame 13, the new left vertical frame 33, and the fin-shaped member 73. It is possible to reliably close the outdoor side of the gap s3 formed between the existing left vertical frame 13 and the new left vertical frame 33.

As described above, the fireproof refurbishment sash according to the present embodiment includes the heating expansion material that is efficiently filled between the existing frame body 1 and the new frame body 3, and has an effective fireproof structure. ing.
And in the fireproof refurbishment sash which concerns on this embodiment, the further fireproof structure is provided in the four corners where a discard frame does not exist. This will be described with reference to FIGS.

In the fireproof refurbishment sash according to the present embodiment, the upper discard frame 21, the lower discard frame 22, and the left and right vertical discard frames 23, 24 are not arranged over the entire length in the horizontal direction and the vertical direction of the joinery. As shown in FIG. 6, there is a region where the discard frame 2 is not arranged at the corner.
Therefore, the fireproof remodeling sash of the present embodiment suppresses intrusion of flame and smoke in the region by disposing the heating expansion materials 61 to 68 on both sides of the discarded frame 2 in addition to the heating expansion materials 51 to 56 described above. is doing.

As shown in FIGS. 7 and 8, the heating expansion members 61 and 62 disposed on the left and right sides of the upper discard 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.
Therefore, as shown in FIG. 9A, in the region where the upper discard frame 21 does not exist, the above-described indoor-side heating expansion is provided in the gap s5 formed between the existing upper frame 11 and the new upper frame 31. A fire prevention structure is formed by the material 51, the outdoor heating expansion material 52, and the heating expansion materials 61 and 62 disposed on the outdoor side surface of the indoor side wall 11 b of the existing upper frame 11.

When a fire occurs, as shown in FIG. 9 (b), the heating expansion material 61 and 62 arranged on the outdoor side of the indoor side wall 11b of the existing upper frame 11 and the heating expansion material 51 on the indoor side are expanded. As a result, the gaps formed on the indoor side of the upper guide rail 11e of the existing upper frame 11 are sufficiently filled with the heating expansion materials 51, 61, 62, so that the existing upper frame 11 and the new upper frame 31 are filled. The indoor side of the gap s5 formed between the two can be closed.
Moreover, the heating expansion material 52 arrange | positioned on the outdoor side expand | swells densely in the space s11 formed by the existing frame 11, the new frame 31, and the fin-like member 71 as mentioned above, and the existing upper frame 11 It is possible to reliably close the outdoor side of the gap s5 formed between the upper frame 31 and the newly installed upper frame 31.

As shown in FIGS. 7 and 8, the heating expansion members 63, 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 end portions of the mounting surface member 222 to both end portions of the existing lower frame 12.
For this reason, as shown in FIG. 10A, in the region where the lower discarded frame 22 does not exist, the above-described indoor heating expansion is provided in the gap s6 formed between the existing lower frame 12 and the new lower frame 32. A fire prevention structure is formed by the material 53, the outdoor heating expansion material 54, 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.

When a fire occurs, as shown in FIG. 10 (b), the heating expansion material 63, 64 disposed on the outdoor side of the indoor side wall 12b of the existing lower frame 12 and the heating expansion material 53 on the indoor side expands. As a result, the gaps formed on the indoor side of the lower guide rail 12e of the existing lower frame 12 are sufficiently filled with the heating expansion materials 53, 63, and 64, so that the existing lower frame 12 and the new lower frame 32 are filled. The indoor side of the gap s6 formed between the two can be closed.
Further, as described above, the heat expansion material 54 arranged on the outdoor side expands densely in the gap formed by 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 newly installed lower frame 32 and the existing lower frame 12 can be closed quickly and reliably.

As shown in FIGS. 7 and 8, the heating expansion members 65 and 66 disposed on the upper and lower sides of the left vertical discard frame 2 are disposed on the outdoor side surface of the indoor side wall 13 b of the left existing vertical frame 13, and left left vertical discard. The frame 23 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 frame 23 does not exist, the gap s7 formed between the left existing vertical frame 13 and the left new vertical frame 33 is in the above-described indoor side. The fire expansion structure is formed by the heat expansion material 55, the outdoor heat expansion material 56, and the heat expansion materials 65 and 66 disposed on the outdoor surface of the indoor side wall 13 b of the left existing vertical frame 13.

When a fire occurs, as shown in FIG. 11 (b), the heating expansion material 65, 66 disposed on the outdoor side of the indoor side wall 13b of the indoor wall 13b of the left existing vertical frame 13 as shown in FIG. By inflating and integrating, the interior 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 disposed on the outdoor side expands densely into the space s31 formed by the existing left vertical frame 13, the new left vertical frame 33, and the fin-shaped member 73, and the existing left vertical frame 13 The outdoor side of the gap s7 formed between the vertical frame 13 and the new left vertical frame 33 can be reliably closed.

  Thus, in the fireproof refurbishment sash of the present embodiment, the heating expansion material is arranged on the outdoor side surface of the indoor side wall of the existing frame body 1 in the region in the vicinity of both end portions of the new frame body where the discard frame is not arranged. Therefore, even if there is a large gap between the existing frame body and the new frame body, the heat expansion material is sufficiently filled with the heat expansion material which is integrated with the heat expansion material disposed on the indoor side of the new frame body 3. It is possible to close the gap between the existing frame and the new frame.

In addition, this invention is not limited to the structure of the fire prevention renovation sash which concerns on the said embodiment, A fire prevention structure can be changed according to the condition of the existing frame, etc.
For example, as shown in FIG. 12, in the case of a fire-resistant remodeling 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 33c of the new left vertical frame 33 The heating expansion material 55 faces 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, thereby forming an indoor fire prevention structure.
And in the area | region of the both ends where the vertical discard frame 23 does not exist, in addition to the indoor thermal expansion material 55, as shown in FIG. 13, the thermal expansion material 65 is provided on the outdoor side surface of the indoor side wall 13b of the existing left vertical frame 13. , 66 are arranged, and the heating expansion material 55 provided on the outer peripheral surface of the indoor prospective wall 33c of the new left vertical frame 33 and the heating expansion materials 65 and 66 provided on the outdoor side surface of the indoor side wall 13b of the existing left vertical frame 13; Can be integrated by expansion to fill the indoor space and close the gap between the existing frame and the new frame.

Furthermore, in the fire prevention structure of the upper frame portion, as shown in FIG. 14 (a), a pocket portion 31i for disposing the heating expansion 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 heating expansion material 51 may be arranged by providing a pocket portion 31 i for arranging the heating expansion material 51 on the indoor upper surface of the new upper frame body 31 a of the new upper frame 31. By providing the pocket portion 31i, the heat expansion material 51 can be prevented from falling off.
Further, as shown in FIG. 15A, in the fire prevention structure of the lower frame portion, the outdoor expansion material 54 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. You may arrange | position to the outdoor lower surface of the newly installed lower frame main body 32a.
Further, the new frame 3 constructed by the fireproof / refurbished sash of the present invention is not limited to the one provided with the step-like lower frame. For example, as shown in FIG. It may be configured as a remodeled sash having a height higher than that of the inner rail on the indoor side. In such a case, it is preferable to use the discarded frame 22 having a wide width in the prospective direction disposed on the upper surface of the inner and outer rails.

  As described above, in the arson remodeling sash of the present embodiment, when a fire occurs, the heat expansion material disposed in the new frame is not only between the existing frame material and the new frame material but also the existing frame. Covering the contact area between the material and the discarded frame, it is possible to quickly prevent the intrusion of smoke and flame from between the existing frame, the vertical discarded frame and the new frame, and the gap between the existing frame and the new frame is reduced. It can be blocked more reliably.

1: Existing frame 11: Existing upper frame 11a: Existing upper frame body 11b: Indoor side wall 11c: Outdoor wall 11d: Jaw 11e: Upper guide rail 11f: Upper guide rail 12: Existing lower frame 12a: Existing lower frame body 12b : Indoor side wall 12c: Jaw part 12d: Front wall part 12e: Lower guide rail 12f: Lower guide rail 13: Existing left vertical frame 13a: Existing left vertical frame body 13b: Indoor side wall 13c: Jaw part 13d: Outdoor wall 14: Existing Right vertical frame 14b: indoor side wall 2: discard frame 21: upper discard frame 21a: prospective surface portion 21b: indoor side locking wall portion 21c: outdoor locking wall portion 22: bottom discard frame 221: support member 222: mounting surface Member 23: Left vertical throwing frame 23a: Expected surface portion 23b: Indoor side locking wall 23c: Outdoor locking wall 24: Vertical throwing frame 3: New frame 31: New upper frame 31a: New upper frame body 31b: Inner side 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 portion 32d: Inner rail 32e: Outer rail 32f: Screen door lower rail 32g: Airtight material retaining wall 33: New left vertical frame 33a: New left vertical frame body 33b: Indoor side wall 33c: Indoor side expected wall 33d: Outdoor wall 33e: central wall 33f: ridge 33g: ridge 34: new vertical frame 42: jaw members 51-56: heating expansion materials 61-66: heating expansion materials 71, 73: fin-shaped members 81-83: airtight tape 91, 93: Spacer

Claims (1)

A discarded frame fixed to the existing frame, a new frame fixed to the existing frame via the discarded frame, and a heating expansion material disposed in a gap between the existing frame and the new frame With
The fire-resistant refurbished sash is characterized in that the heat-expandable material is disposed in the new frame, and is disposed at a position facing the contact portion between the existing frame and the discarded frame.