JP2018035547A - Fire protection refurbishment sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire protection refurbishment sash capable of efficiently blocking a gap between an existing frame body and a new frame body to swiftly and reliably prevent communication between the outdoor and the indoor at a fire.SOLUTION: The fire protection refurbishment sash includes: a new frame body which is fixed to an existing frame body installed in an opening of a building; and a thermal expansion material that blocks a gap between the existing frame body and the new frame body being inflated by the heat. The thermal expansion material is disposed between the existing frame body and the new frame body (being attached to the new frame body), adjacent to the end at the indoor side and the end at the outdoor side in a depth direction. In the end at the indoor side and/or the end at the outdoor side where the thermal expansion material is disposed, the new frame body and the existing frame body are positioned close to each other.SELECTED DRAWING: Figure 3

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.

  The present invention has been made in view of the above circumstances, and by devising a region that is filled with a thermal expansion refractory material that expands in the event of a fire, the existing frame body and the new frame body can be formed with a small number of thermal expansion refractory materials. An object of the present invention is to provide a fireproof remodeling sash that can efficiently close the space and can prevent communication between the inside and outside of the room quickly and reliably.

The invention according to claim 1 of the present application includes a new frame fixed to an existing frame installed in a building opening, and a heating expansion material that expands by heating. Near the indoor side end and near the outdoor side end of the indoor frame, close to the gap between the existing frame and the new frame, Alternatively, in the vicinity of the outdoor end, the new frame and the existing frame are close to each other, and the gap between the adjacent existing frame and the new frame can be closed at the initial stage of expansion of the heated expansion material. It is characterized by being.
Further, the invention according to claim 2 of the present application is a discard frame fixed to an existing frame installed in a building opening, a new frame fixed to an existing frame through a discard frame, A heat-expandable material that expands by heating, and the heat-expandable material closes the gap between the existing frame body and the new frame body in either the vicinity of the indoor side end in the prospective direction or the vicinity of the outdoor end. In either one of the vicinity of the indoor side end and the vicinity of the outdoor end, the heating expansion material is disposed and the gap between the discarded frame and the new frame is closed. In the vicinity of the indoor side edge and / or the vicinity of the outdoor side edge, the existing frame and the new frame or the new frame and the discard frame are close to each other, and the adjacent existing frame and new frame or new frame are close to each other. The gap between the discarded frames should be closed at the initial stage of expansion of the heated expansion material. Characterized in that it is a possible interval.
Further, the invention according to claim 3 of the present application is a discard frame fixed to an existing frame installed in a building opening, a new frame fixed to an existing frame through a discard frame, A thermal expansion material that expands by heating, and the thermal expansion material is disposed so as to close a gap between the discarded frame and the new frame body in the vicinity of the indoor side end and the outdoor side end in the prospective direction. In addition, in the vicinity of the indoor side end and / or in the vicinity of the outdoor side end where the heat-expandable material is disposed, the new frame and the discard frame are close to each other, and the gap between the adjacent new frame and the discard frame is The spacing is such that it can be closed in the initial stage of expansion of the heated expansion material.

  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 quickly.

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 renovation 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 renovation 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 both the longitudinal cross-sectional views 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 both the longitudinal cross-sectional views 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 forming 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 indoor side wall 11b and the outdoor side wall 11c of the existing upper frame 11 and the lower ends of the upper guide rails 11e and 11f from the inner peripheral side. The locking wall portion 21b and the outdoor locking wall portion 21c are inserted from below into the recess formed by the indoor side wall 11b and the outdoor side wall 11c of the existing upper frame 11, and the indoor side locking wall portion 21b and the outdoor side engagement The upper discard frame 21 is attached to the existing upper frame 11 by fixing the stop wall portion 21c, the indoor side wall 11b, and the outdoor side wall 11c with fixing means b, b such as screws.

  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 prospective surface portion 23 a arranged on the inner peripheral side of the existing left vertical frame 13 and the indoor side of the prospective surface portion 23 a. And an indoor-side locking wall portion 23b and an outdoor-side locking wall portion 23c extending in the outer peripheral direction from the outdoor side, and formed as a long member having a length equal to or less than the vertical width of the building opening. Yes.
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 of the bent wall 31c of the new upper frame 31 is substantially flush with the indoor side surface of the indoor side wall 11b of the existing upper frame 11 in the prospective direction, and from the lower surface of the bent wall 31c to the indoor side end 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. 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 are opposed to each other with a narrow space therebetween, and the airtightness extends from the indoor side wall 32b of the newly installed lower frame 32 to the upper surface of the jaw 12c. Covered by tape 82.
Further, a jaw member 42 made of aluminum alloy is fixed to the opening of the building by a fixing means b such as a screw on the upper surface of the jaw 12c of the existing lower frame 12 so as to cover the airtight tape 82.

The new left vertical frame 33 constituting the new frame 3 is arranged on the inner peripheral side of the left left vertical discard frame 23, and as shown in FIG. 2, a new left vertical frame main body 33a forming the inner peripheral surface of the repair sash. An indoor side wall 33b extending in the inner circumferential direction from the indoor side of the new left vertical frame main body 33a, an indoor prospective wall 33c extending further indoors from the indoor side wall 33b, and a new left vertical frame main body 33a An outdoor side wall 33d extending in the inner peripheral direction from the outdoor end of the central wall 33e, and a central wall 33e extending 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 of the present invention includes a fireproof structure for preventing intrusion of smoke and flames 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.

(Fire-proof structure of the upper frame part where the discarded frame exists)
In the upper frame portion, as shown in FIG. 3A, the new upper frame 31 is attached to the existing upper frame 11 via the upper discard frame 21, and between the existing upper frame 11 and the new frame body 3. The gap formed is due to the upper discard frame 21 arranged on the inner peripheral surface of the existing upper frame 11, and in the region where the upper discard frame 21 exists, the upper gap s11 above the upper discard frame 21 and the lower gap s12 below the same. It is divided into and.
When the upper discard frame 21 is arranged, the upper surface of the prospective surface portion 21a of the upper discard frame 21 is in contact with the lower end of the indoor side wall 11b and the outdoor side wall 11c of the existing upper frame 11, so There is little risk that a gap communicating with the inside and outside of the room is formed in the upper gap s11 between the discard frame 21 and the upper gap s11. Therefore, the heat-expandable material is disposed so as to close the lower gap s12 between the upper discard frame 21 and the new upper frame 31, and the vicinity of the indoor side end of the lower gap s12 is the position of the new upper frame 31. The heating expansion material 51 is disposed on the upper surface of the bent wall 31c, and the vicinity of the outside edge of the room protrudes to the outside of the existing upper frame 11 (upper discarding frame 21) of the new upper frame body 31a of the new upper frame 31. A heating expansion material 52 is arranged on the upper surface of the part, and all of them are arranged over the entire length of the new upper frame 31.

The bent wall 31c of the new upper frame 31 on which the indoor-side heating expansion material 51 is disposed is opposed to the upper discard frame 21, and the bent wall 31c is formed at an upper position than the new upper frame main body 31a. Therefore, the upper surface of the bent wall 31c is close to the lower surface of the prospective surface portion 21a of the upper discarded frame 21, and the lower gap s12 is provided between the upper surface of the bent wall 31c of the newly installed upper frame 31 and the expected surface portion 21a of the upper discarded frame 21. A gap s13 is formed as a space narrower in the vertical direction than the other portions.
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 gap s14 that is narrow and wide on the indoor side is formed.

And when a fire breaks out, as shown in FIG.3 (b), the heating expansion | swelling material 51 arrange | positioned indoors is a space narrow in the up-down direction formed above the bending wall 31c by heating. It expands into a certain gap s13 and can reach the prospective surface portion 21a of the upper discard frame 21 in the initial stage of expansion, and the gap s13 between the upper discard frame 21 and the new upper frame 31 in the vicinity of the indoor side end in the prospective direction. Can be quickly occluded.
Here, the initial stage of expansion means that it is an early stage after the heated expandable material is heated and expanded, and for example, expands to a volume of about 1/3 or less of the volume when the heated expandable material is completely expanded. It means up to.
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 upper frame 11, the new upper frame 31, and the fin-shaped member 71. The gap s14 expands densely, and the gap between the upper discarded frame 21 and the new upper frame 31 near the outdoor end in the prospective direction can be quickly closed.
In addition, on the outdoor side, a bulging portion is formed on the new upper frame body 31a of the new upper frame 31 so as to protrude upward and close to the prospective surface portion 21a of the upper discard frame 21, and a heating expansion material is disposed on the upper surface of the raised portion. By doing so, you may comprise so that the clearance gap between the upper disposal frame 21 and the new installation upper frame 31 may be obstruct | occluded in the expansion | swelling initial stage of a heating expansion material.

  As described above, in the case where the discarded frame is disposed outside the room with respect to the existing frame body, as in the upper frame portion of the fireproof / remodeled sash of the present embodiment, the heating expansion material is the indoor side end in the prospective direction. It is arranged so as to close the gap between the discarded frame and the newly installed frame in the vicinity of the outer space and the gap between the discarded frame and the newly installed frame in the vicinity of the outdoor end, so that Communication can be prevented.

(Fire-proof structure of the lower frame part where the discarded frame exists)
In the lower frame portion, as shown in FIG. 4A, the lower frame 22 is disposed only on the indoor side portion of the existing lower frame 12, and the new lower frame 32 is supported by the lower frame 22. In the vicinity of the indoor side end portion, the heating expansion material 53 is disposed on the indoor side surface of the indoor side wall 32 b of the newly installed lower frame 32 that faces the discarded frame 22, and the newly installed lower frame 32 is disposed on the upper surface of the existing lower frame 12. In the vicinity of the outdoor end, a heating expansion material 54 is disposed on the indoor side surface of the front wall portion 32c of the new lower frame 32 that faces the front wall portion 12d of the existing lower frame 12, both of which extend to the entire length of the new lower frame 32. It is arranged over.

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 is opposed to the indoor side wall 32b of the new lower frame 32 and the lower disposal frame. The gap s21 formed by the 22 mounting surface members 222 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 s22 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 placement surface member 222 of the decommissioning frame 22 by heating and expands. In the initial stage, it can reach the mounting surface member 222 disposed on the indoor side of the indoor side wall 12b of the existing lower frame 12, and can fill the gap s21 which is a narrow space. Then, by forming the airtight tape 82 covering the gap s21 with a flame-retardant material, the heating expanded in the gap s21 formed by the indoor side wall 32b of the newly installed lower frame 32 and the indoor side wall 12b of the existing lower frame 12 The expansion material 53 can be prevented from being scattered and leaking to the indoor side, and the expansion material 53 is closely expanded into the space s21 on the indoor side of the space s2 between the existing lower frame 12 and the new lower frame 32, and is more reliably blocked. can do.
Further, the heating expansion material 54 arranged on the outdoor side expands toward the front wall portion 12d of the existing lower frame 12 by heating, reaches the front wall portion 12d of the existing lower frame 12 in the initial stage of expansion, and reaches the new lower frame 32. Since the gap s22, which is a narrow space formed by the front wall portion 32c and the front wall portion 12d of the existing lower frame 12, is filled, the outside of the gap s2 between the new lower frame 32 and the existing lower frame 12 can be quickly moved. It can be reliably occluded.

  As described above, when the discarded frame is partially disposed on the indoor side or the outdoor side with respect to the existing frame body, as in the lower frame portion of the fireproof remodeling sash of the present embodiment, the heat expansion material is in the expected direction. The gap between the discarded frame and the new frame near the end on the side where the discarded frame is arranged, and the gap between the existing frame and the new frame near the end on the side where the discarded frame is not arranged. By arranging so as to block, communication between the inside and outside of the fireproof / remodeled sash can be prevented.

(Fire-proof structure of the vertical frame part where the discarded frame exists)
In the vertical frame portion, as shown in FIG. 5A, a left vertical discard frame 23 is disposed on the inner peripheral surface of the existing left vertical frame 13, and the new left vertical frame 33 includes the existing left vertical frame 13 and the left vertical frame. The gap formed between the existing left vertical frame 13 and the new left vertical frame 33 is arranged so as to be close to the discard frame 23, and the left vertical discard frame 23 in the region where the left vertical frame 23 exists. Are divided into an outer gap s31 on the outer circumference side and an inner gap s32 on the inner circumference side.
In the arrangement of the left vertical discard frame 23, unlike the arrangement of the upper discard frame 21, the outer peripheral surface of the prospective surface portion 23a is in contact with the inner peripheral edge of the indoor side wall 13b and the outdoor side wall 13d of the existing left vertical frame 13. Therefore, not only the inner gap s32 between the left vertical frame 23 and the new left vertical frame 33, but also the outer gap s31 between the existing left vertical frame 13 and the left vertical frame 23 is provided indoors and outdoors. There may be gaps in communication.
Therefore, in the vicinity of the indoor side end portion of the vertical frame portion, on the outer peripheral surface of the indoor prospective wall 33c of the new left vertical frame 33 so as to face the portion where the left vertical discard frame 23 and the existing left vertical frame 13 abut. The heating expansion material 55 is disposed over the entire length of the new left vertical frame 33, and the airtight tape 83 extends from the inner peripheral side surface of the indoor side prospective wall 33 c of the new left vertical frame 33 to the indoor side surface of the existing left vertical frame 13. Is provided.

In addition, in the vicinity of the outside edge of the room, a heating expansion material is provided on the outer peripheral surface of a portion protruding outside the existing left vertical frame 13 (left vertical discard frame 23) of the new left vertical frame main body 33a of the new left vertical frame 33. 56 is arranged over the entire length of the new left vertical frame 33.
The heating expansion material 56 disposed on the outdoor side of the new left vertical frame main body 33a is disposed in the vicinity of the fixing portion 73a of the fin-like member 73, and a fin piece 73b of the fin-like member 73 is disposed on the outer periphery of the heating expansion member 56. Is disposed at the outer peripheral position of the heat expansion material 56 by the new left vertical frame 33, the existing left vertical frame 13 and the fin-like member 73, thereby forming a space s 34 having a narrow outdoor side and a wide indoor side.

And when a fire breaks out, as shown in FIG.5 (b), the heating expansion material 55 arrange | positioned indoors is the chamber of the indoor side wall 13b of the existing left vertical frame 13, and the left vertical discard frame 23 by heating. It expands toward the contact portion with the inner locking wall portion 23b, reaches the existing left vertical frame 13 and the left vertical discard frame 23 in the initial stage of expansion, and in the vertical frame portion, the left vertical discard frame 23 and the new left vertical frame The gap between the existing left vertical frame 13 and the new left vertical frame 33, and the gap between the existing left vertical frame 13 and the left vertical discard frame 23, as well as the indoor side of the gap between the existing left vertical frame 13 and the left vertical frame 23. Can do.
At this time, by forming the airtight tape 83 provided from the inner peripheral side surface of the indoor-side prospective wall 33c of the new left vertical frame 33 to the indoor side surface of the existing left vertical frame 13 by using a flame-retardant material, the expanded heating The expansion material 55 can be prevented from scattering to the indoor side, and the indoor side of the vertical frame portion is densely filled to further prevent indoor and outdoor communication in both the outer gap s31 and the inner gap s32. Can do.

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. And expands so as to cover the contact area between the left vertical frame 33, the left vertical frame 23 and the existing left vertical frame 13 near the outdoor end in the prospective direction. Not only the outdoor side of the inner gap 32 between the discarded frame 23 and the new left vertical frame 33 but also the outdoor side of the outer gap s32 between the existing left vertical frame 13 and the left vertical discarded frame 23 can be closed.
Note that, on the outdoor side, the new left vertical frame 33 is opposed to a contact portion between the outdoor outer wall 13c of the existing left vertical frame 13 of the new left vertical frame body 33a and the outdoor locking wall 23c of the left vertical discard frame 23. By disposing the heating expansion material at the place, the gap between the left vertical discarding frame 23 and the new left vertical frame 33 at the initial stage of expansion of the heating expansion material, the existing left vertical frame 13 and the new left vertical frame 33 also on the outdoor side. The gap between the left vertical frame 13 and the left vertical frame 23 may be closed.

  As described above, as in the case of the vertical frame portion of the fireproof / refurbished sash of the present embodiment, the discarded frame is arranged indoors and outdoors with respect to the existing frame body, and there is sufficient space between the existing frame body and the discarded frame. When the air expansion material cannot be kept airtight, the heat expansion material is disposed in the new frame body in the vicinity of the indoor side end portion and the outdoor side end portion in the prospective direction. By arranging so as to expand toward the abutting portion, the gap between the newly installed frame body, the discard frame and the existing frame body can be closed, and communication between the inside and outside of the fireproof / remodeled sash is prevented. be able to.

(The part where there is no throwing frame)
As shown in the above embodiment, the existing frame 1, the discarded frame 2, the new frame 3, and the fireproof remodeling sash for installing the new frame 3 on the existing frame 1 via the discarded frame 2, An effective fireproof structure can be provided by providing a heating expansion material that efficiently expands and fills the gap generated between the two.
In the fireproof refurbished sash according to the present embodiment, since the discard frame is not arranged over the entire length in the left-right direction and the vertical direction of the joinery, there are four corners where there is no discard frame. In the four corners where there is no frame, a further fire protection structure is provided. 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.
In view of this, in the area where the discard frame 2 of the fireproof / renovated sash of the present embodiment is not disposed, in addition to the above-described heating expansion materials 51 to 56, the heating expansion materials 61 to 68 are disposed on both sides in the length direction of the disposal frame 2. Thus, intrusion of flame and smoke in the region is suppressed.

(Fireproof structure of the upper frame part where there is no discarded frame)
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 frame portion of the upper frame 21 does not exist, the gap s1 formed between the existing upper frame 11 and the new upper frame 31 has the above-described chamber. A fireproof structure is formed by the inner heating expansion 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 11b of the existing upper frame 11.

When a fire occurs, as shown in FIG. 9B, the heating expansion material 61 on the indoor side and the heating expansion materials 61 and 62 disposed on the outdoor side surface of the indoor side wall 11b of the existing upper frame 11 Is expanded and integrated, so that the space formed on the indoor side of the upper guide rail 11e of the existing upper frame 11 is sufficiently filled with the heating expansion materials 51, 61, 62, and the existing upper frame 11 and the newly installed upper frame 11 The indoor side of the gap s5 formed between the frame 31 and the frame 31 can be closed.
Further, as described above, the heat-expandable material 52 disposed on the outdoor side is closely expanded into the gap s14 formed by the existing upper frame 11, the new upper frame 31, and the fin-like member 71, and the existing upper frame 11 is thus expanded. And the outdoor side of the gap s1 formed between the upper frame 31 and the newly installed upper frame 31 can be closed.
In addition, in the said embodiment, although the heat expansion materials 61 and 62 are arrange | positioned at the indoor side wall 11b of the existing upper frame 11, you may arrange | position at the indoor side surface of the outdoor side wall 11c of the existing upper frame 11. FIG.

(Fire prevention structure of the lower frame part where there is no discard frame)
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.
Therefore, as shown in FIG. 10A, the gap s2 formed between the existing lower frame 12 and the new lower frame 32 is in the above-described chamber in a region where the lower frame portion of the lower frame 22 does not exist. A fireproof structure is formed by the inner heating expansion material 53 and 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 12 b of the existing lower frame 12.

When a fire occurs, as shown in FIG. 10B, the heating expansion material 53 disposed on the indoor side of the indoor side wall 32 b of the new lower frame 32 adjacent to the indoor side wall 12 b of the existing lower frame 12. Reaches the indoor side wall 12b of the existing lower frame 12 in the early stage of expansion, expands tightly in the gap s21, which is a narrow space between the existing lower frame 12 and the new lower frame 32, and further the interior of the existing lower frame 12 By expanding and integrating the heating expansion materials 63 and 64 arranged on the outdoor side surface of the side wall 12b, it is possible to prevent the heating expansion material 53 expanded in the gap s21 from dropping downward, and the existing lower frame It is possible to quickly close the indoor side of the gap s <b> 2 formed between 12 and the newly installed lower frame 32.
In addition, the heating expansion material 54 disposed on the indoor side of the front wall portion 32c of the new lower frame 32 adjacent to the outdoor side surface of the front wall portion 12d of the existing lower frame 12 is a front wall portion of the existing lower frame 12 in the initial stage of expansion. 12d and is closely expanded in the gap s22, which is a narrow space between the new lower frame 32 and the existing lower frame 12, so that the outside of the gap s2 between the new lower frame 32 and the existing lower frame 12 can be quickly moved outside. It can be reliably occluded.
In this way, for the lower frame part of the fire protection repair sash, in the case where no discard frame is interposed, the new lower frame is arranged close to the existing lower frame in the vicinity of the indoor side end portion and the outdoor side end portion. A space between the lower frame and the existing lower frame is formed in a narrow gap, and a heating expansion material is disposed so as to block the indoor side portion and the outdoor side portion formed in the narrow gap, so It is possible to quickly respond to a fire on the other side, and it is possible to prevent communication between the inside and outside of the room with a small amount of heat expansion material.

(Fire prevention structure of the left vertical frame part where there is no discard frame)
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 frame 23 are disposed on the outdoor side surface of the indoor side wall 13 b of the existing left vertical frame 13. The frame 23 is provided from the upper and lower end positions of the frame 23 to both ends of the existing left vertical frame 13.
Therefore, as shown in FIG. 11A, in the region where the left vertical discard frame 23 of the vertical frame portion does not exist, the gap s3 formed between the existing left vertical frame 13 and the new left vertical frame 33 is A fireproof structure is formed by the above-described indoor-side heating expansion material 55 and the outdoor-side heating expansion material 56, and the heating expansion materials 65 and 66 disposed on the outdoor-side surface of the indoor side wall 13b of the existing left vertical frame 13. .

When a fire occurs, as shown in FIG. 11B, the indoor heating expansion material 55 expands toward the outer periphery and is arranged on the outdoor side surface of the indoor side wall 13b of the existing left vertical frame 13. The heated expansion members 65 and 66 are expanded toward the outdoor side, and both are integrated, thereby closing the indoor side of the gap s3 formed between the existing left vertical frame 13 and the new left vertical frame 33. can do.
In addition, as described above, the heating expansion material 56 disposed on the outdoor side is closely expanded into the space s34 formed by the existing left vertical frame 13, the new left vertical frame 33, and the fin-like member 73, and the existing left vertical frame 13 The outdoor side of the gap s3 formed between the vertical frame 13 and the new left vertical frame 33 can be closed.
In addition, in the said embodiment, although the heat expansion materials 65 and 66 are arrange | positioned at the indoor side wall 13b of the existing left vertical frame 13, you may arrange | position at the indoor side surface of the outdoor side wall 13d of the existing left vertical frame 13. Moreover, you may arrange | position to the existing left vertical frame main body 13a.

  As described above, even in the region where the discard frame of the vertical frame portion of the fire protection sash according to the present embodiment is not interposed, the indoor side portion and the outdoor side portion of the gap between the existing frame body and the new frame body are closed. The heating expansion material is disposed in the room, so that it is possible to quickly respond to a fire on either side of the room, and it is possible to prevent communication between the outside and the room with a small amount of heat expansion material.

(Other embodiment 1)
Another embodiment of the present invention will be described with reference to FIGS.
For example, as shown in FIG. 12 (a), in the case of a fire-resistant refurbished sash having existing vertical frames 13 and 14 that are wide in the prospective direction, the indoor left-side prospect of the new left vertical frame 33 adjacent to the existing vertical frame 13 The indoor-side heating expansion material 55 provided on the outer peripheral surface of the wall 33c is opposed to the inner peripheral surface of the left vertical discard frame 23, and left left discarded from the inner peripheral side surface of the indoor-side prospective wall 33c of the new left vertical frame 33. By providing the airtight tape 83 over the outer peripheral surface of the frame 23 and the indoor side surface of the existing left vertical frame 13, an indoor fire prevention structure can be formed.
When a fire breaks out, as shown in FIG. 12B, the indoor left side heating expansion material 55 expands toward the outer periphery, so that the left vertical discard frame 23 and the new left vertical frame 33 are compared. By filling the narrow gap s33, the indoor gap s32 on the indoor side in the vertical frame portion can be closed, and the indoor and outdoor communication can be prevented quickly.

Moreover, in the area | region of the both ends where the left vertical discard frame 23 does not exist, in addition to the indoor thermal expansion material 55, as shown in FIG. Heat expansion materials 65 and 66 are disposed on the outdoor side surface of the indoor side wall 13b.
When a fire occurs, as shown in FIG. 13B, the heating expansion material 55 provided on the outer peripheral surface of the indoor side prospective wall 33c of the new left vertical frame 33 expands toward the outer peripheral side. The heating expansion members 65 and 66 provided on the outdoor side surface of the indoor side wall 13b of the existing left vertical frame 13 expand toward the outdoor side, and the two are integrated, so that the new left vertical frame 33 and the existing left vertical frame are integrated. The indoor side of the gap s3 between the frames 13 can be closed.

An airtight tape 83 provided between the new left vertical frame 33 and the existing left vertical frame 13 is provided with a flame-retardant material in the region where the left vertical discard frame 23 is present and in the region where the left vertical frame 23 is not present. As a result, the air-tight tape 83 suppresses the scattering of the heat-expandable material to the indoor side, so that the indoor side of the gap s3 in the vertical frame portion can be filled more densely.
The outdoor fire prevention structure is the same as that of the previous embodiment, and therefore the description thereof is omitted here.

(Other embodiment 2)
Further, in the fire prevention structure of the upper frame portion, as shown in FIG. 14A, 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 heat expansion material 51 may be disposed by providing a pocket portion 31 i for disposing the heat 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, in the fire prevention structure of the lower frame portion, as shown in FIG. 15A, 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 existing lower frame 12. The newly installed lower frame 32 may be disposed on the lower outside surface of the newly installed lower frame main body 32a.
And the new installation frame 3 constructed | assembled by the fireproof renovation sash of this invention is not limited to what is equipped with a step-like lower frame, For example, as shown in FIG.15 (b), an outer rail of an outdoor side 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 fireproof refurbishment sash according to the present embodiment, between the existing frame body and the new frame body, or between the discarded frame and the new frame in the vicinity of the indoor side end and the outdoor side end in the prospective direction. Since the heating expansion material is arranged between the body and the heating expansion material arranged on the indoor side and the heating expansion material arranged on the outdoor side, both the outer portions in the prospective direction (the indoor side end and the outdoor side end) Therefore, when a fire breaks out, any heating expansion material can be heated and expanded at the initial stage of the fire for any fire inside or outside the room. As a result, it is possible to close the gap between the existing frame and the new frame early in the fire, and to prevent leakage of harmful gases caused by heating the resin spacers, etc. placed in the gap. To prevent ignition and fire spread Can.
In addition, by arranging any of the heating expansion materials in the new frame, it is possible to expand the heating expansion material at an early stage by the heat transmitted to the new frame that is relatively in contact with the flame.
Further, in the vicinity of the indoor side end portion and / or the outdoor side end portion where the heating expansion body of the new frame body is arranged, the existing frame body and the new frame body or the discarded frame and the new frame body are brought close to each other, The gap between the frame body and the new frame body, or the gap between the discarded frame and the new frame body is formed as a relatively narrow space, and the gap can be closed at the initial stage of expansion of the heated expansion material. In addition, the amount of the heating expansion material for filling the gap is small, and the filling can be efficiently performed.

  In addition, the structure for arrange | positioning a heating expansion material between a new frame and an existing frame, or a new frame and a discard frame is not limited to the structure of the said embodiment, For example, a discard frame Even in the region where the thermal expansion material exists, the heat expansion material may be disposed between the existing frame body and the new frame body in the vicinity of the indoor side end portion and the outdoor side end portion, and in the embodiment, the lower frame portion The fire prevention structure adopted in the above may be adopted for the upper frame and the vertical frame. That is, it is only necessary that the heat expansion material is disposed between the new frame body and the existing frame body or between the new frame body and the discard frame in the vicinity of the indoor side end portion and the outdoor side end portion in the prospective direction.

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 main 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 (3)

A new frame fixed to an existing frame installed in a building opening, and a heating expansion material that expands by heating,
The heating expansion material is arranged so as to close the gap between the existing frame body and the new frame body in the vicinity of the indoor side end portion and the outdoor side end portion in the prospective direction, and the heating expansion material is arranged. In the vicinity of the indoor side end and / or the outdoor side end, the new frame and the existing frame are close to each other,
A fireproof refurbished sash characterized in that the gap between the adjacent existing frame and the new frame is an interval that can be closed in the initial stage of expansion of the heated expansion material. A discard frame fixed to the existing frame installed in the building opening, a new frame fixed to the existing frame via the discard frame, and a heating expansion material that expands by heating,
The heating expansion material is disposed so as to close the gap between the existing frame body and the new frame body in either the vicinity of the indoor side end portion or the outdoor side end portion in the prospective direction, It is arranged so as to close the gap between the discarded frame and the new frame on the other side in the vicinity of the outdoor side end, and near the indoor side end where the heating expansion material is arranged and / or the outdoor side end. In the vicinity of the part, the existing frame and the new frame or the new frame and the discarded frame are close to each other,
A fireproof remodeling sash characterized in that the gap between the adjacent existing frame body and the new frame body or the new frame body and the discarded frame is an interval that can be closed in the initial stage of expansion of the heated expansion material. A discard frame fixed to the existing frame installed in the building opening, a new frame fixed to the existing frame via the discard frame, and a heating expansion material that expands by heating,
The heating expansion material is arranged so as to close the gap between the discarded frame and the new frame body in the vicinity of the indoor side end and the outdoor side end in the prospective direction, and the indoor side where the heating expansion material is arranged. In the vicinity of the end portion and / or the vicinity of the outdoor end portion, the new frame body and the discarded frame are close to each other,
A fireproof refurbished sash characterized in that the gap between the adjacent new frame and the discarded frame is a space that can be closed in the initial stage of expansion of the heated expansion material.

Images