JP7267906B2 - Fireproof retrofit window structure - Google Patents

Description

The present invention relates to a fire rated retrofit window structure.

In recent years, as disclosed in Patent Document 1, by providing a heated foam material that foams in the event of a fire, sashes such as double sliding windows, single sliding windows, double-hung windows, and casement windows that have received fireproof certification have been developed. For this reason, various sashes certified as fireproof have come to be used as sashes installed in the openings of newly built buildings and houses. In particular, educational facilities such as schools, medical and welfare facilities such as hospitals, and non-residential facilities such as commercial facilities such as stores use more types of windows than residential facilities such as condominiums. For this reason, various sashes that have been certified as fireproof are available as fireproof sashes for new construction. and to meet the demands of designers.

JP 2015-148056 A

On the other hand, not only in new buildings, but also in the case of refurbishing the sashes of old buildings and houses, there is a demand for refurbishment with fire-retardant sashes for various types of windows, as in the case of new construction.
SUMMARY OF THE INVENTION An object of the present invention is to provide a fireproof refurbished window structure that can be refurbished with various types of fireproof sashes in the same way as when renovating a new building.

The present invention is a fireproof refurbished window structure in which a new sash is arranged on the inner circumference of an existing frame, and the new frame of the new sash is installed between the existing frame and the new frame through a closing material. It is characterized by being fixed to the frame.

According to the fireproof retrofit window structure of the present invention, various kinds of fireproof sashes can be retrofitted.

BRIEF DESCRIPTION OF THE DRAWINGS It is a longitudinal cross-sectional view which shows the fireproof refurbishment window structure of 1st Embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS It is a cross-sectional view which shows the fireproof refurbishment window structure of 1st Embodiment. It is a perspective view which shows the existing lower frame of 1st Embodiment, and a new lower frame. It is a schematic diagram which shows the arrangement|positioning of the existing frame of 1st Embodiment, and a closing material. It is a cross-sectional view which shows the new shoji of 1st Embodiment. It is a longitudinal cross-sectional view which shows the existing lower frame of 2nd Embodiment of this invention, and a new lower frame. It is a schematic diagram which shows the modification of this invention. It is a schematic diagram which shows the modification of this invention. It is a schematic diagram which shows arrangement|positioning of the existing frame of the modification of this invention, and a closure material. It is a schematic diagram which shows arrangement|positioning of the existing frame of the modification of this invention, and a closure material.

[First embodiment]
A fireproof refurbished window structure according to a first embodiment of the present invention will be described below with reference to FIGS.
As shown in FIGS. 1 and 2, in the fireproof refurbished window structure of the first embodiment, a refurbished sash 1 is installed in an opening of a frame 2 made of concrete. Buildings having the skeleton 2 include residential condominiums and detached houses, educational facilities such as non-residential schools, public facilities such as government buildings, medical and welfare facilities such as hospitals, and commercial facilities such as stores.
The refurbished sash 1 comprises an existing frame 10 attached to a frame 2 and a new sash 4 installed on the inner peripheral side of the existing frame 10.例文帳に追加
The existing frame 10 is obtained by removing the existing shoji from the existing sash attached to the frame 2 and remaining on the frame 2 .
The new sash 4 is configured as a double sliding window by arranging the new shojis 5 and 6 in the new frame 20 so as to be able to slide.
1 and 2 are orthogonal to each other, the X-axis direction is the vertical direction of the remodeled sash 1, the Y-axis direction is the lateral direction of the remodeled sash 1, and the Z-axis direction is the remodeled sash 1. This is the prospective direction of the sash 1 . Further, in each cross-sectional view, hatching in cross sections of the new frame 20 of the new sash 4 and the new shojis 5 and 6 may be omitted in order to make the drawing easier to see.

The existing frame 10 is constructed by framing an existing upper frame 11, an existing lower frame 12, and left and right existing vertical frames 13, 14. As shown in FIG. The existing upper frame 11 , the existing lower frame 12 , and the existing left and right vertical frames 13 and 14 are each made of steel and fixed to the opening of the frame 2 via mortar 3 .
Note that the existing frame 10 of the present embodiment is a frame for FIX windows, but the type of the existing frame 10 is not limited to FIX windows, and may be sliding windows, double-hung windows, casement windows, etc., and is not particularly limited. .
In general, the mortar 3 is filled between the entire circumference of the outer peripheral surface of the existing frame 10 and the building frame 2. There are also cases where In the modified sash 1 of this embodiment, as shown in FIG. 3, the mortar 3 is filled over the entire outer peripheral surface of the existing frame 10 .
The existing frame 10 is made of steel and is fixed to the frame 2 with mortar 3 , so it can be regarded as a part of the frame 2 .

The new sash 4 is a double sliding window having a fireproof performance including a newly installed frame 20 and newly installed shojis 5 and 6. - 特許庁This new sash 4 is the same sash as a fireproof sash that can be incorporated into a new building after being certified for fireproof performance. For this reason, the new sash 4 of the present embodiment is a double sliding window, but a fixed window, a vertical sliding window, a casement window, an inwardly tilting window, an outwardly tilting window, a sliding window, a stepped window, a continuous window, etc. New sashes for various certified window types are available.

The newly-established frame 20 is composed of a newly-established upper frame 21, a newly-established lower frame 22, and left and right newly-established vertical frames 23, 24 as frameworks.
Between the existing frame 10 and the newly installed frame 20, a noncombustible closing member 40 made of a fire-resistant steel material or the like is provided. The blocking material 40 functions as a flame shielding material that secures flame shielding properties in the gap by blocking the passage of flame, and functions as a connecting member that fixes the new frame 20 to the existing frame 10 that is the frame 2. Also serves as
The closing members 40 include an upper closing member 41 that closes the gap between the existing upper frame 11 and the new upper frame 21, a lower closing member 42 that closes the gap between the existing lower frame 12 and the new lower frame 22, and left and right existing vertical frames. 13, 14 and vertical closing members 43, 44 closing the gap between the new vertical frames 23, 24.

The upper closing member 41 is screwed to the interior surface of the existing upper frame 11 and the interior surface of the new upper frame 21, as shown in FIG. Specifically, the upper closing member 41 includes an interior surface portion 411 screwed to the interior surface of the existing upper frame 11, a connecting surface portion 412 extending from the lower end of the interior surface portion 411 to the exterior side, and a chamber of the connecting surface portion 412. It has a fixed surface portion 413 extending downward from the outer edge and screwed to the interior surface of the new upper frame 21, and a lower surface portion 414 extending from the lower end of the fixed surface portion 413 toward the interior of the room. The upper closing member 41 is a long member extending along the longitudinal direction of the existing upper frame 11 and the new upper frame 21, that is, along the Y-axis direction.
Furthermore, a bracket 419 is provided to connect the outdoor upper end of the new upper frame 21 and the existing upper frame 11 . The bracket 419 is fixed to the outdoor upper end of the new upper frame 21 and the lower surface of the existing upper frame 11 with screws. The bracket 419 is an angle material made of steel, and is composed of a long material or a piece material. If the bracket 419 is made of a long member, it functions as a connecting member that connects the existing upper frame 11 and the newly installed upper frame 21 and as a flame shield that closes the gap between them, like the upper closing member 41 . On the other hand, if a plurality of brackets 419 are formed of piece material and provided along the longitudinal direction of the newly installed upper frame 21, they do not function as flame shields, but function as connecting members.
The newly installed upper frame 21 is fixed to the existing upper frame 11 and the mortar 3, that is, the frame 2 via the upper closing member 41 and the bracket 419 described above. Therefore, screws for fixing the upper closing member 41 and the bracket 419 to the existing upper frame 11 are screwed into the mortar 3 from the existing upper frame 11 . With this configuration, the outdoor side and the indoor side of the newly installed upper frame 21 can be connected to the existing upper frame 11 by the bracket 419 and the upper closing member 41, respectively. The frame 21 can be stably fixed.

1 and 3, the lower closing member 42 consists of a first lower closing member 420 which is a first closing member screwed to the new lower frame 22 and a second closing member 420 which is screwed to the existing lower frame 12. It is composed of two members, the second lower closing member 425 which is a material. The first lower closing member 420 and the second lower closing member 425 are long members extending along the longitudinal direction of the existing lower frame 12 and the new lower frame 22, that is, along the Y-axis direction.
As shown in FIG. 3, the first lower closing member 420 includes an interior surface portion 421 screwed to the interior surface of the new lower frame 22, an upper surface portion 422 extending from the upper end of the interior surface portion 421 toward the interior of the room, A connecting surface portion 423 extending from the lower end of the indoor surface portion 421 to the outdoor side and a fixing surface portion 424 extending downward from the edge of the connecting surface portion 423 on the outdoor side are provided.
The second lower closing member 425 is formed to have a substantially L-shaped cross section including a facing surface portion 426 and a projected surface portion 427 . The projected surface portion 427 is screwed to the upper surface of the existing lower frame 12 . The facing surface portion 426 extends upward from the outdoor side edge of the facing surface portion 427 . The fixed surface portion 424 of the first lower covering member 420 and the facing surface portion 426 of the second lower covering member 425 are connected and fixed by a plurality of screws provided along the Y-axis direction.

Furthermore, a bracket 429 that connects the interior surface portion 421 and the existing lower frame 12 is provided. The bracket 429 is a piece material configured by cutting a steel angle, and a plurality of brackets 429 are provided along the longitudinal direction of the interior surface portion 421 and the existing lower frame 12 . The bracket 429 is fixed to the interior surface portion 421 of the first lower closing member 420 and the upper surface of the existing lower frame 12 by screws. Thus, if the bracket 429 is provided, the outdoor side and the indoor side of the new lower frame 22 can be connected to the existing lower frame 12 by the lower closing member 42 and the bracket 429, respectively, so that the connection strength of the new lower frame 22 is improved. The newly installed lower frame 22 can be stably fixed. It should be noted that the bracket 429 may be configured by an elongated material. In this case, since the bracket 429 also functions as a flame shielding material in addition to the lower blocking member 42, the flame shielding performance can be improved.
The newly installed lower frame 22 is fixed to the existing lower frame 12 and the mortar 3, that is, the frame 2 via the lower closing member 42 and the bracket 429 described above. Therefore, the screws for fixing the lower closing member 42 and the bracket 429 to the existing lower frame 12 are screwed into the mortar 3 from the existing lower frame 12 . With this configuration, the outdoor side and the indoor side of the new lower frame 22 can be connected to the existing lower frame 12 by the lower closing member 42 and the bracket 429, respectively. The frame 22 can be stably fixed.

The vertical blocking members 43 and 44 are screwed to the interior surfaces of the existing vertical frames 13 and 14 and the interior surfaces of the new vertical frames 23 and 24, as shown in FIG. Specifically, the vertical blocking members 43 and 44 extend from the inner peripheral side edges of the interior surfaces 431 and 441 screwed to the interior surfaces of the existing vertical frames 13 and 14 and the interior surfaces 431 and 441 toward the exterior of the room. projection surface portions 432, 442, and fittings extending from the outdoor side edges of the projection surface portions 432, 442 along the interior surfaces of the new vertical frames 23, 24 and screwed to the interior surfaces of the new vertical frames 23, 24 It is formed with surface portions 433 and 443 and inner peripheral surface portions 434 and 444 extending from the inner peripheral side edges of the facing surface portions 433 and 443 toward the interior of the room. The vertical blocking members 43 and 44 are long members extending along the longitudinal direction of the existing vertical frames 13 and 14 and the new vertical frames 23 and 24, that is, along the X-axis direction.
Further, the outer peripheral portions of the new vertical frames 23 and 24 and the existing vertical frames 13 and 14 are directly fixed with screws. Therefore, the outdoor side and the indoor side of the newly installed vertical frames 23, 24 are directly fixed to the existing vertical frames 13, 14 and the mortar 3, that is, to the frame 2 via the above-described vertical blocking members 43, 44. there is With this configuration, the outdoor side and the indoor side of the newly installed vertical frames 23, 24 can be connected to the existing vertical frames 13, 14 directly and by the vertical blocking members 43, 44, respectively. The strength can be improved, and the existing vertical frames 13 and 14 can be stably fixed.

The upper closing member 41, the lower closing member 42, and the vertical closing members 43 and 44 are made of steel such as incombustible steel. are placed along. Between the upper closing member 41 and the lower closing member 42 and the vertical closing members 43 and 44, and between the vertical closing members 43 and 44 and the existing vertical frames 13 and 14, there is no need to improve workability and prevent fires. The gaps S1 and S2 are set in consideration of thermal elongation and the like.
For example, if a gap of about 1 mm is provided as the gaps S1 and S2, the closing members 41 to 44 can be easily arranged and workability can be improved. In addition, when each of the closing members 41 to 44 thermally expands due to heat during a fire, if the gaps S1 and S2 are set with dimensions that take into consideration the thermal expansion, in addition to improving workability, each closing member 41 expands during thermal expansion. ∼44 can be prevented from being subjected to a large stress. Note that the dimension in consideration of thermal elongation may be set based on the linear expansion coefficient based on the material of each of the closing members 41 to 44 and the length dimension. do it.
In the closing member 40 of this embodiment, left and right vertical closing members 43 and 44 are arranged between an upper and lower closing member 41 and a lower closing member 42 . For this reason, between the upper surfaces of the left and right vertical blocking members 43 and 44 and the lower surface of the upper blocking member 41, and between the lower surfaces of the vertical blocking members 43 and 44 and the upper surface of the lower blocking member 42, thermal elongation A gap S1 is provided for absorbing the That is, the gap S1 is set according to the dimension of thermal expansion of the left and right vertical blocking members 43 and 44 due to heat during fire. Note that the gap S1 is not limited to being formed on both the upper and lower surfaces of the vertical blocking members 43 and 44, and only one of them, for example, between the upper surfaces of the vertical blocking members 43 and 44 and the upper blocking member 41. A gap S1 may be formed in .
In the present invention, the blocking member 40 is sufficient as long as it can block flames from passing between the existing frame 10 and the new frame 20 in the event of a fire. Therefore, when the closing member 40 is arranged so as to be continuous on all four sides, it means that the upper closing member 41, the lower closing member 42, and the vertical closing members 43 and 44, which are thermally stretched, are in contact with each other and are continuously arranged on all four sides at least in the event of a fire. , and includes those arranged so that the gap S1 for thermal expansion is formed in a normal time when no fire occurs. In addition, when the closing member 40 is continuously arranged on all four sides so as to close the gap between the existing frame 10 and the newly installed frame 20 in the event of a fire, it is not only the case where the closing members 41 to 44 come into contact with each other, but also the flame blocking performance. Including cases where slight gaps that do not affect are left.
Furthermore, since the upper closing member 41 and the lower closing member 42 also thermally expand, a gap S2 is also formed between the left and right end faces of the upper closing member 41 and the lower closing member 42 and the existing vertical frames 13 and 14. . The gap S2 is set according to the dimension of thermal expansion of the upper closing member 41 and the lower closing member 42 due to heat during fire. This gap S2 may also be formed only on one of the left and right end faces of the upper closing member 41 and the lower closing member 42 .
Also, only one of the gaps S1 and S2 may be provided, or both of the gaps S1 and S2 may be eliminated. For example, when the plugging material 40 has a short longitudinal dimension and thus is less affected by thermal elongation, or when the plugging material 40 is made of a material that is difficult to thermally expand, the upper plugging material 41 and the lower plugging material 42 , the vertical closing members 43 and 44 may be brought into contact in advance, or the left and right end surfaces of the upper closing member 41 and the lower closing member 42 may be brought into contact with the existing vertical frames 13 and 14 in advance.

A cover material 50 is attached to the indoor side of the new frame 20 to hide the closing material 40 . The cover member 50 includes an upper cover member 51 , a lower cover member 52 and vertical cover members 53 and 54 .
Further, on the indoor side of the existing frame 10, a decorative material 60 is provided to cover the opening surface to which the existing frame 10 was attached. The decorative material 60 includes an upper decorative material 61 , a lower decorative material 62 , and vertical decorative materials 63 and 64 .

The upper cover member 51 includes a projected surface portion 511 screwed to the lower surface portion 414 of the upper closing member 41, a facing surface portion 512 extending upward from the projected surface portion 511, and a top end of the facing surface portion 512 folded back toward the outside of the room. and a receiving surface portion 513 . The receiving surface portion 513 is provided to support the backup material 55 and the sealing material 56 that are filled in the gap with the upper decorative material 61 .

Since the lower cover member 52 and the vertical cover members 53 and 54 are parts having the same or similar shape as the upper cover member 51, description thereof will be omitted.
The lower cover member 52 is screwed to the upper surface portion 422 of the lower closing member 42 . The vertical cover members 53 and 54 are screwed to the inner peripheral surface portions 434 and 444 of the vertical closing members 43 and 44, respectively.
A backup material 55 and a sealing material 56 are also filled between the lower cover member 52 , vertical cover members 53 and 54 and the lower decorative member 62 and vertical decorative members 63 and 64 .

An external parting member 70 is attached to the outdoor surface of the newly installed upper frame 21 . A draining material 71 is screwed to the outdoor surface of the new lower frame 22 . Seal receiving plates 72 are attached to both left and right ends of the draining member 71 .
A sealing material 76 is filled between the external parting material 70 , the draining material 71 , and the outer wall material 7 provided on the outdoor side of the frame 2 .
That is, as shown in FIG. 1 , a backup material 75 and a sealing material 76 are filled between the outer parting material 70 attached to the newly installed upper frame 21 and the outer wall material 7 . A backup material 75 and a sealing material 76 are also filled between the lower end of the draining material 71 and the frame 2 .
As shown in FIG. 2 , backup materials 75 and sealing materials 76 are also filled between the newly installed vertical frames 23 and 24 and the side surfaces of the exterior wall material 7 . The backup material 75 and the sealing material 76 filled between the newly installed vertical frames 23 and 24 and the side surface of the external wall material 7 are also continuous between the seal receiving plate 72 of the draining material 71 and the side surface of the external wall material 7. is filled.

As shown in FIG. 1, a joint portion between the new frame 20 and the external parting material 70 is also filled with a backup material 77 and a sealing material 78 . Specifically, as shown in FIG. 1, the joint portion between the external parting member 70 and the new upper frame 21 is formed as a groove surrounded by the external parting member 70 and the new upper frame 21, and the backup material is inserted into the groove. 77 and sealing material 78 are filled.
A joint portion between the draining material 71 and the new lower frame 22 is also formed as a groove surrounded by the draining material 71 and the new lower frame 22, and the groove is filled with a backup material 77 and a sealing material 78.

The newly installed shojis 5 and 6 are shojis for sliding windows. In addition, the new sash 4 including the new frame 20 and the new shoji 5 and 6 is a double sliding window with fireproof performance, and has a configuration necessary for obtaining fireproof certification, for example, a heat foaming that expands in the event of a fire and shields the flame. Materials are provided as appropriate.
FIG. 5 is a cross-sectional view showing an example of newly installed shoji 5, 6 used for renovation. The new shoji screens 5 and 6 shown in FIG. 5 are composed of an upper frame and a lower frame (not shown), a door frame 81, and a meeting frame 82 in a rectangular frame shape, and a wire glass 83 and a low glass frame 83 are placed in the frame. - E glass 84 is incorporated.
A reinforcing member 85 made of steel is arranged over the entire length of each meeting frame 82, and a heating foam member 86 is adhered to the reinforcing member 85 over the entire length. A heated foam material 86 facing the outer peripheral surface of the Low-E glass 84 is adhered to the meeting frame 82 of the newly installed shoji 6 on the room side. The heating foam material 86 is also adhered to the door frame 81, respectively. Although not shown, the heating foam material is also adhered to the upper frame and the lower frame.
Further, a low-temperature foaming type heating foam material 87 that foams at a lower temperature than the heating foam material 86 is adhered to the opposing surfaces of the stiles 82 . Although not shown, a low-temperature foaming type heating foam material is adhered to the surface of the lower frame and the surface of the lower frame facing the rail of the lower frame.
These heated foam materials 86 and 87 are foamed in the event of a fire, and can block the gap between the new shoji screens 5 and 6 and the new frame 20, the gap between the meeting frames 82, and the like, and block the flame.

[Renovation work]
Next, an example of remodeling work for the new sash 4 of this embodiment will be described.
The new sash 4 is manufactured at a sash manufacturing factory. At this time, if it is possible to deliver the sash assembled to the remodeling site, such as a sash with a small size, the sash is assembled at the manufacturing plant and delivered to the remodeling site. On the other hand, if the sash is large in size and cannot be delivered to the refurbishment site in a sash-assembled state, parts are attached at the manufacturing factory, and the sash is assembled at the construction site. The work of attaching the glass to the newly installed shojis 5 and 6 is separately performed at the renovation site.

At a renovation site where an existing sash is installed, remove the existing shoji.
Next, the upper closing member 41, the lower closing member 42, the vertical closing members 43 and 44, and the bracket 419 are fixed to the existing frame 10 and the mortar 3 by screwing.
The lower closing member 42 is formed by screwing the second lower closing member 425 to the existing lower frame 12 and the mortar 3 and then screwing the first lower closing member 420 to the second lower closing member 425 . Further, the second lower closing member 425 is screwed to the existing lower frame 12 and the mortar 3, the second lower closing member 425 is screwed to the new lower frame 22, and the new frame 20 is erected within the existing frame 10. When attached, the first lower plugging member 420 and the second lower plugging member 425 may be connected by screwing.
Then, the new frame 20 is erected within the existing frame 10.例文帳に追加At this time, the new frame 20 may be positioned and temporarily fixed. Also, the bracket 429 is screwed to the existing lower frame 12 before or after the new frame 20 is erected inside the existing frame 10 .
Next, the closing member 40 and the new frame 20 are fixed by screwing. Specifically, the interior side of the newly installed upper frame 21 is screwed into the newly installed upper frame 21 from the fixing surface portion 413 of the upper closing member 41 . Further, the outdoor side of the new upper frame 21 is screwed from the new upper frame 21 to the bracket 419 .
The indoor side of the new lower frame 22 is screwed to the new lower frame 22 via the bracket 429 and the indoor surface portion 421 of the lower closing member 42 . On the outdoor side of the new lower frame 22, if the first lower closing member 420 is screwed to the second lower closing member 425 in advance, screw the screw from the new lower frame 22 to the fixed surface portion 424 of the first lower closing member 420. screw together. Further, when the first lower closing member 420 is screwed in advance to the new lower frame 22, the fixing surface portion 424 of the lower closing member 42 is brought into contact with the facing surface portion 426 of the second lower closing member 425, and the fixing surface portion 424 is fixed. A screw is screwed into the viewing surface portion 426 .
By screwing the closing member 40 and the new frame 20 together, the new frame 20 is fixed to the existing frame 10, that is, the frame 2, via the closing member 40, which serves both as a connecting member and a flame shielding material.

Next, finishing work on the outdoor side of the new frame 20 and finishing work on the indoor side are performed. In the finishing work on the outdoor side, first, an external parting member 70 and a draining member 71 are attached to the new frame 20 from the outdoor side with screws. Then, a backup material 75 and a sealing material 76 are filled between the outer parting material 70 and the draining material 71 and the outer wall material 7 and the frame 2 . Also, a backup material 77 and a sealing material 78 are filled between the external parting material 70 , the draining material 71 , and the new frame 20 . As a result, the outdoor side of the refurbished sash 1 is sealed, and the outdoor side finishing work is completed.
In the finishing work on the indoor side, the indoor-side cover material 50 covering the closing material 40 is screwed to the upper closing material 41, the lower closing material 42, and the vertical closing materials 43 and 44. As shown in FIG. Then, a backup material 55 and a sealing material 56 are filled between the cover material 50 and the decorative material 60 to carry out sealing work, and finishing work on the interior side is completed.
After that, the newly installed shojis 5 and 6 are incorporated into the newly installed frame 20 to complete the renovation work.

[Action and effect of the first embodiment]
According to the modified fireproof window structure of the first embodiment, the new frame 20 of the new sash 4 is fixed to the frame 2 via the closing material 40 . Since the closing member 40 is made of steel or the like and has fire resistance, the newly installed sash 4 having fire resistance can be directly fixed to the frame 2 via the fire resistance to constitute the refurbished sash 1 having fire resistance. For this reason, if new sashes 4 of various types of windows individually certified for fireproofing for newly built buildings and houses are connected to the building frame 2 using a covering material 40, the modified sashes 1 of various types of windows can be installed. Can be made fireproof. Therefore, according to the first embodiment, when the existing sashes are remodeled, they can be remodeled into various types of fireproof sashes as in the case of new construction.
In addition, since the closing member 40 also serves as a flame-shielding material that closes the gap between the existing frame 10 and the new frame 20 and as a connecting member that connects the new frame 20 to the frame 2, the flame-shielding material and the connecting member are separated. The number of parts can be reduced, the structure of the refurbished window for fire protection can be simplified, and the cost can be reduced as compared with the case where the window is provided in the window.
Furthermore, since the new frame 20 is fixed to the building frame 2 using the sealing material 40, there is no need to configure the new frame 20 according to the type and shape of the existing frame 10, and the new sash 4 for new construction can be used as it is. be able to.
Furthermore, since the new frame 20 is not configured to match the existing frame 10, there may be a gap between the existing frame 10 and the new frame 20. is provided, the fireproof performance of the gap between the existing frame 10 and the new frame 20 can also be ensured.
Therefore, the refurbished sash 1 having fireproof performance can be easily configured, and the new sash 4 of the refurbished sash 1 can use a sash certified for fire prevention for new construction, so compared to the case of using a sash dedicated to refurbishment. , a modified sash 1 for various types of windows can be constructed at low cost.

The upper closing member 41, the lower closing member 42, and the vertical closing members 43 and 44, which constitute the closing member 40, are arranged with a gap S1 in consideration of construction workability and thermal elongation in the event of a fire. can be improved, and when the upper closing member 41, the lower closing member 42 and the vertical closing members 43 and 44 thermally expand due to the heat of the fire, the gap between the upper closing member 41, the lower closing member 42 and the vertical closing members 43 and 44 It is possible to configure the closing member 40 that is continuous around the four circumferences by eliminating the gap between. As a result, the flame can be reliably blocked, and the fireproof performance of the refurbished sash 1 can be improved.

Since the closing member 40 is fixed to the newly installed frame 20 and the building frame 2 with screws, the welding work at the remodeling site can be eliminated and the remodeling workability can be improved.
In addition, since the lower closing member 42 is composed of two members, the first lower closing member 420 and the second lower closing member 425, the first lower covering member 42 can be configured according to the structure and shape of the new lower frame 22 and the existing lower frame 12. The closing member 420 and the second lower closing member 425 can be appropriately selected and combined, and the new lower frame 22 and the existing lower frame 12 can be easily and reliably connected via the lower closing member 42 .

[Second embodiment]
A modified sash 1B of the second embodiment will be described with reference to FIG.
The refurbished sash 1B differs from the above-described embodiment in that the existing frame 10B is an aluminum sash and that the shape of the closing member 40B, for example, the shape of the lower closing member 42B, differs from the above-described embodiment in accordance with the existing aluminum frame 10B. differ from Although FIG. 6 shows the existing lower frame 12B and the new lower frame 22, other existing upper frames and existing vertical frames (not shown) are also made of aluminum. The mortar 3 may be filled over the entire circumference of the existing frame 10B, or there may be a portion where the mortar 3 is not filled.

The existing frame 10B made of aluminum is an existing frame for a double sliding window, as shown in FIG. Therefore, the existing lower frame 12B includes an outdoor side rail 101 and an indoor side rail 102 . This existing frame 10B is attached to anchor plates 28 embedded in the frame 2 . That is, in the ready-made sash before renovation, the existing frame 10B is fixed to the frame 2 via the anchor plate 28 .
Then, the lower closing member 42B for fixing the new frame 20 (the new lower frame 22 in FIG. 6) is inserted and fixed into the pilot hole formed from the existing frame 10B (the existing lower frame 12B in FIG. 6) to the frame 2. It is fixed to the skeleton 2 by a fisher plug 30C, which is a skeleton connecting member.

The lower closing member 42B is composed of two members, a first lower closing member 420B screwed to the new lower frame 22 and a second lower closing member 425B screwed to the existing lower frame 12B. The first lower closing member 420B and the second lower closing member 425B are long members extending along the longitudinal direction of the existing lower frame 12 and the new lower frame 22, that is, along the Y-axis direction.
As with the first lower closing member 420 of the first embodiment, the first lower covering member 420B includes an interior surface portion 421 screwed to the interior surface of the new lower frame 22 and extending from the upper end of the interior surface portion 421 toward the interior of the room. A protruded upper surface portion 422 , a connecting surface portion 423 extending from the lower end of the indoor surface portion 421 to the outside of the room, and an edge of the connecting surface portion 423 extending from the outside of the room and fixed to the new lower frame 22 or the second lower closing member 425 . and a fixing surface portion 424 to which the fixing surface 424 is attached.
However, since the fixed surface portion 424 is connected to the new lower frame 22 and the second lower closing member 425 at different positions in the projection direction, the first fixed surface portion 424A screwed to the newly installed lower frame 22 and the second fixed surface portion 424A 2. The second fixing surface portion 424B screwed to the facing surface portion 426 of the lower closing member 425, and the connecting piece portion 424C connecting the first fixing surface portion 424A and the second fixing surface portion 424B, are formed in a substantially Z shape. ing.

The second lower covering member 425B has a facing surface portion 426 and a projection surface portion 427, and is formed to have a substantially L-shaped cross section, like the second lower covering member 425 of the first embodiment. The second lower closing member 425B is arranged between the outdoor side rail 101 and the indoor side rail 102 of the existing upper frame or the existing lower frame 12B.
The projected surface portion 427 is fixed to the skeleton 2 by a fisher plug 30C, which is a skeleton connecting member. The viewing surface portion 426 is screwed to the second fixed surface portion 424B. Although not shown, the upper closing member and the vertical covering member also have a shape corresponding to the existing aluminum frame 10B.

The refurbishment work of the refurbished sash 1B is the same as in the first embodiment, except that the closing member 40B is fixed to the skeleton 2 with a skeleton connecting member such as a fisher plug 30C, so the explanation is omitted. Incidentally, in the modified sash 1B, hole-in anchors or concrete screws may be used instead of the fisher plugs 30C.

[Action and effect of the second embodiment]
According to the refurbished sash 1B of the second embodiment, the same effects as those of the above embodiment are obtained. That is, the closing material 40B (lower closing material 42B) is attached to the new frame 20, and the closing material 40B (lower closing material 42B) is fixed to the frame 2 via the fisher plug 30C. The closing member 40B serves both as a flame shielding material that closes the gap between the existing frame 10B and the new frame 20, and as a connection member that connects the new frame 20 to the skeleton 2 via the fisher plug 30C, which is a skeleton connection member. Compared to the case where the flame shield and the connecting member are provided separately, the number of parts can be reduced, the structure of the modified fireproof window can be simplified, and the cost can be reduced.
In addition, since the second lower covering material 425B is arranged between the outdoor side rail 101 and the indoor side rail 102, when the second lower covering material 425B is fixed to the frame 2 with the fisher plug 30C, the second lower covering material Rotation of 425B can be restricted and prevented by the outdoor side rail 101 and the indoor side rail 102. - 特許庁Therefore, the work of fixing the second lower covering member 425B with the fisher plug 30C can be facilitated, and the remodeling workability can be improved.

[Modification]
The present invention is not limited to the configurations described in each of the above embodiments, and modifications within the scope of achieving the object of the present invention are included in the present invention.
For example, in the first embodiment, the sealing material 40 is screwed to the existing frame 10 and the mortar 3, but since the existing steel frame 10 can be regarded as a skeleton, the sealing material 40 can be welded to the existing frame 10. May be fixed.
In addition, in the second embodiment, the closing member 40B was fixed to the skeleton 2 by a skeleton connecting member such as a fisher plug 30C, but as shown in FIGS. The plate 31 may be fixed, and the closing member 40C may be fixed to this plate 31 with screws or by welding. That is, the frame connection member with the plate 31 may be penetrated through the existing frame 10 and fixed to the frame 2, and the closing member 40 may be fixed to the plate 31 of the frame connection member by screws or welding.

In the present invention, the frame to which the new frame 20 is fixed via the closing materials 40 and 40B is not limited to concrete or mortar, and may be an ALC panel, steel frame, or the like, as long as it is a noncombustible material that can be used as the frame. . Therefore, in FIGS. 7 and 8, the skeleton 2C is schematically shown in order to show that the type of the skeleton 2C including the existing frame is not limited.

The closing member 40 is not limited to the configuration shown in FIG. For example, the upper and lower ends of the vertical blocking members 43 and 44 are brought into contact with the existing upper frame 11 and the existing lower frame 12 with a gap therebetween, and the upper blocking member 41 and the lower blocking member 42 are arranged between the vertical blocking members 43 and 44. may be placed.
Moreover, the closing member 40 may be configured so as to be continuous around at least four circumferences in the event of fire. Therefore, the present invention is not limited to four steel materials, ie, the upper closing member 41, the lower closing member 42, and the vertical closing members 43 and 44, as in each of the above-described embodiments.
For example, as shown in FIG. 9, four steel materials of an upper closing member 41D, a lower closing member 42D, vertical closing members 43D and 44D, and longitudinal sides of the upper closing member 41D, lower closing member 42D, vertical closing members 43D and 44D The closing member 40</b>D may be provided with a noncombustible material 45 such as mortar, rock wool, or aluminum tape that is filled in the gap between the direction end faces and the existing frame 10 . In addition, since the upper end surfaces of the vertical blocking members 43D and 44D are set lower than the lower surface of the upper blocking member 41D and the lower end surfaces of the vertical blocking members 43D and 44D are higher than the upper surface of the lower blocking member 42D, fire Even if the upper closing member 41D, the lower closing member 42D, and the vertical closing members 43D and 44D thermally expand, the respective steel materials do not interfere with each other.
Further, as shown in FIG. 10, the upper closing member 41E and the lower closing member 42E are composed of a plurality of (three pieces in FIG. 10) steel materials, and the gaps between the steel materials are filled with the noncombustible material 46 to form the closing member 40E. may be used. In FIG. 10, the vertical closing members 43E and 44E are composed of a single steel material like the closing member 40D. It may be composed of a noncombustible material that is
The incombustible materials 45 and 46 are compressed when the steel material thermally expands, and can absorb the thermal expansion of the steel material. For this reason, even before the fire, the closing members 40D and 40E can have the steel materials and the noncombustible materials 45 and 46 arranged without gaps so as to form a continuous four-circumference. In addition, since the incombustible materials 45 and 46 are mortar, rock wool, or aluminum tape, they do not burn off in the event of a fire. And the gap between the new frames 20 can be reliably shielded from flames.
Since the closing members 40</b>D and 40</b>E also serve as connecting members, it is sufficient that they have a dimension capable of securing strength capable of supporting the newly installed sash 4 .

The closing material is not limited to completely covering the gap between the existing frame 10 and the newly installed frame 20, and may not cover a part of the gap as long as it can ensure the flame-shielding property. In short, it is sufficient that the sealing material can ensure the flameproof performance between the existing frame 10 and the newly installed frame 20, ensure the fireproof performance required for fireproof certification, and also function as a connecting member.

In each of the above-described embodiments, the lower closing members 42 and 42B are composed of two members, the first lower closing members 420 and 420B and the second lower closing members 425 and 425B, but they may be composed of one member. , may be composed of three or more members. For example, the bracket 429 may have the same long dimension as the first lower covering member 420, and the lower covering member 42 may be composed of three parts, the first lower covering member 420, the second lower covering member 425, and the bracket 429. . In this case, the space between the existing frame 10 and the new frame 20 can be doubly blocked, and the flame shielding property can be improved.

In each of the above-described embodiments, the modified sash 1 in which one new sash 4 is arranged in the existing frame 10 has been described. A window may be configured.

[Summary of Invention]
The fireproof refurbished window structure of the present invention is a fireproof refurbished window structure in which a new sash is arranged on the inner periphery of an existing frame, and the new frame of the new sash is installed between the existing frame and the new frame. It is characterized in that it is fixed to the frame via a closing material.
According to the present invention, since the new frame of the newly installed sash is fixed to the building frame via the sealing material, the newly installed sashes of various window types that have received fire prevention certification can be fixed to the building frame using the sealing material. , Refurbished sashes for various types of windows can be made fireproof, and when refurbishing an existing sash, it can be refurbished into various types of fireproof sashes in the same manner as when a new building is built.
In addition, since the blocking material is also used as a flame-shielding material that seals the space between the existing frame and the new frame and as a connecting member that connects the new frame to the frame, compared to the case where the flame-shielding material and the connecting member are separately provided, The number of parts can be reduced, the structure of the modified fireproof window can be simplified, and the cost can be reduced.

In the modified fireproof window structure of the present invention, the existing frame may be made of steel, and the closing member may be fixed to the existing frame.
According to the present invention, since the existing steel frame can be regarded as a frame having fire resistance, the new frame can be easily fixed to the frame by fixing the closing material to the existing frame.

In the fireproof refurbished window structure of the present invention, a skeleton connection member passing through the existing frame may be fixed to the skeleton, and the closing member may be fixed to the skeleton by the skeleton connection member.
According to the present invention, the closing material is attached to the new frame of the new sash, the frame connecting member that penetrates the existing frame is fixed to the frame, and the closing member is fixed to the frame by the frame connecting member, thereby closing the new sash. , can be fixed to the skeleton via the skeleton connecting member. Therefore, even if the existing frame itself cannot be regarded as a skeleton, such as an existing aluminum frame, the new frame can be easily fixed to the skeleton via the covering material and the skeleton connecting member.

In the fireproof refurbished window structure of the present invention, a skeleton connection member passing through the existing frame may be fixed to the skeleton, and the closing member may be fixed to the skeleton connection member.
According to the present invention, the closing material is attached to the new frame of the new sash, the frame connection member that penetrates the existing frame is fixed to the frame, and the closing member is fixed to the frame connection member, thereby closing the new sash and the frame. It can be fixed to the frame via a connecting member. Therefore, even if the existing frame itself cannot be regarded as a skeleton, such as an existing aluminum frame, the new frame can be easily fixed to the skeleton via the covering material and the skeleton connecting member.

In the fireproof refurbished window structure of the present invention, the closing member includes a first closing member fixed to the new frame, and a second closing member connected to the first closing member and fixed to the frame side. may be
According to the present invention, the closing member is composed of two members, the first closing member and the second closing member. can be appropriately selected and combined, and the new frame and the existing frame can be easily and reliably connected via the sealing material.

In the fireproof refurbished window structure of the present invention, the closing material is composed of an upper closing material, a lower closing material, and left and right vertical closing materials, and the upper closing material, the lower closing material, and the left and right vertical closing materials are continuous four times. preferably.
According to the present invention, the closing member is composed of the upper closing member, the lower closing member, and the left and right vertical closing members, and since these are arranged continuously around the four circumferences, the gap between the new frame and the existing frame is continuously arranged around the four circumferences. It can be blocked and fire performance can be improved.

In the fireproof refurbished window structure of the present invention, the new sash comprises the new frame, the new shoji placed on the inner peripheral side of the new frame, and foams in the event of a fire to block the space between the new frame and the new shoji. It is preferable to have a heating foam material.
According to the present invention, a new sash having fireproof performance can be provided at a low cost because fireproof performance is ensured by providing the heated foam material.

1 Remodeled sash, 1B Remodeled sash, 2 Frame, 2C Frame, 3 Mortar, 4 New sash, 5 New shoji, 6 New shoji, 7 External wall material, 10 Existing frame, 10B Existing Frame 11 Existing upper frame 12 Existing lower frame 12B Existing lower frame 13 Existing vertical frame 14 Existing vertical frame 20 Newly installed frame 21 Newly installed upper frame 22 Newly installed lower frame 23 24 New vertical frame 28 Anchor plate 30C Fisher plug 30D Hole-in anchor 31 Plate 40 Closing material 40B Closing material 40C Closing material 40D Closing material , 40E... Closing material, 41... Upper closing material, 41D... Upper closing material, 41E... Upper closing material, 42... Lower closing material, 42B... Lower closing material, 42D... Lower closing material, 42E... Lower closing material, 43... Vertical blocking material 43D Vertical blocking material 43E Vertical blocking material 44 Vertical blocking material 44D Vertical blocking material 44E Vertical blocking material 45 Incombustible material 46 Noncombustible material 50 Cover material 51 Upper cover material 52 Lower cover material 53 Vertical cover material 54 Vertical cover material 55 Backup material 56 Sealing material 60 Decorative material 61 Upper decorative material 62 Lower decorative material 63... Vertical decorative material, 64... Vertical decorative material, 70... External parting material, 71... Draining material, 72... Seal receiving plate, 75... Backup material, 76... Seal material, 77... Backup material, 78... Seal material, 81 ... door frame, 82... meeting frame, 83... wire glass, 84... low-E glass, 85... reinforcing material, 86... heating foam material, 87... heating foam material, 101... outdoor rail, 102... room Inner rail 411 Interior surface portion 412 Connection surface portion 413 Fixed surface portion 414 Lower surface portion 419 Bracket 420 First lower closing member 420B First lower closing member 421 Indoor surface portion 422 Upper surface part 423... Connecting surface part 424... Fixing surface part 424A... First fixing surface part 424B... Second fixing surface part 424C... Connecting piece part 425... Second lower closing member 425B... Second lower closing member 426 ... facing surface portion 427 ... projected surface portion 429 ... bracket 431 ... indoor surface portion 432 ... projected surface portion 433 ... projected surface portion 434 ... inner peripheral surface portion 441 ... indoor surface portion 442 ... projected surface portion 443 ... projected surface portion 444 .

Claims (9)

A fireproof refurbished window structure in which a new sash is arranged on the inner circumference of the existing frame,
The new frame of the new sash is fixed to the skeleton via a sealing material installed between the existing frame and the new frame ,
The closing member includes an upper closing member, a lower closing member, and left and right vertical closing members,
A refurbished window structure for fire protection, wherein gaps are formed between the left and right end surfaces of the upper closing member and the lower closing member and the inner peripheral surfaces of the left and right existing vertical frames of the existing frame. A fireproof refurbished window structure in which a new sash is arranged on the inner circumference of the existing frame,
The new frame of the new sash is fixed to the skeleton via a sealing material installed between the existing frame and the new frame,
The closing member includes an upper closing member, a lower closing member, and left and right vertical closing members,
A refurbished window structure for fire protection, wherein a gap is formed between upper and lower end surfaces of the left and right vertical blocking members and inner peripheral surfaces of the existing upper frame and the existing lower frame of the existing frame. A fireproof refurbished window structure in which a new sash is arranged on the inner circumference of the existing frame,
The new frame of the new sash is fixed to the skeleton via a sealing material installed between the existing frame and the new frame,
The closing member comprises an upper closing member, a lower closing member, left and right vertical closing members, and an incombustible material filled between the longitudinal end face of each closing member and the existing frame. Fireproof retrofit window structure characterized. In the fireproof retrofit window structure according to any one of claims 1 to 3 ,
The existing frame is made of steel,
The fireproof refurbished window structure, wherein the closing member is fixed to the existing frame. In the fireproof retrofit window structure according to any one of claims 1 to 3 ,
Fixing a skeleton connection member penetrating the existing frame to the skeleton,
The fireproof refurbished window structure, wherein the closing member is fixed to the frame by the frame connection member. In the fireproof retrofit window structure according to any one of claims 1 to 3 ,
Fixing a skeleton connection member penetrating the existing frame to the skeleton,
The fireproof refurbished window structure, wherein the closing member is fixed to the frame connection member. In the fireproof retrofit window structure according to any one of claims 1 to 6 ,
The closing material is
a first closing member fixed to the new frame;
a second closing member connected to the first closing member and fixed to the frame side;
A fire-retardant retrofit window structure comprising: In the fireproof refurbished window structure according to claim 1 or claim 2 ,
The fireproof refurbished window structure, wherein the upper closing member, the lower closing member, and the left and right vertical covering members are continuous on all four sides. The fireproof retrofitted window structure according to any one of claims 1 to 8 ,
The new sash includes the new frame, a new shoji placed on the inner circumference side of the new frame, and a heating foam material that foams in the event of a fire to close the space between the new frame and the new shoji. and fireproof retrofitted window structure.

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