Fixture for renovation and fireproof structure for fixture

Abstract

To provide a fixture for renovation and a fireproof structure for the fixture capable of suppressing deformation of a newly installed frame.SOLUTION: A fixture for renovation is provided with an attachment member 20 fixed to an existing frame 90 provided in an opening of a building, and a newly installed frame 10 fixed to the attachment member 20. The newly installed frame 10 comprises a metal outdoor side frame part 12, a metal indoor side frame part 13, and a resin bridge member 14 connecting the outdoor side frame part 12 and the indoor side frame part 13. The outdoor side frame part 12 is connected to one of the attachment member 20 and the existing frame 90 and has an outdoor side fixation part 125 placed at the outer side of the bridge member 14, and the indoor side frame part 13 is connected to one of the attachment member 20 and the existing frame 90 and has an indoor side fixation part 133 placed at the inner side of the bridge member 14.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to retrofitted fittings and fire-resistant construction of fittings. [Background technology]

[0002] Conventionally, when renovating an opening in a building through renovation or the like, a construction method has been known in which a new fitting frame is installed so as to cover the inner periphery of the existing fitting frame. For example, the following Patent Document 1 proposes improving thermal insulation by installing a new fitting frame on the inner periphery of the existing fitting frame, the new fitting frame connecting the indoor and outdoor metal members by providing a resin bridge material between the indoor and outdoor metal members. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2023-56413 Summary of the Invention [Problem to be solved by the invention]

[0004] In the renovated fixtures disclosed in Patent Document 1, the indoor side of the newly installed fixture frame is fixed to the building's main body with screws, but there is a problem in that if the bridge material melts in the event of a fire, the newly installed fixture frame, such as the upper frame, may deform and fall.

[0005] The present disclosure has been made in consideration of the above circumstances, and provides a renovated building fixture and a fireproof structure for the building fixture that can suppress deformation of the newly installed frame in the event of a fire. [Means for solving the problem]

[0006] A renovated fixture according to one aspect of the present disclosure comprises an attachment material fixed to an existing frame installed in an opening in a building, and a new frame fixed to the attachment material, wherein the new frame has a metal outdoor frame portion, a metal indoor frame portion, and a resin bridge material connecting the outdoor frame portion and the indoor frame portion, wherein the outdoor frame portion has an outdoor fixing portion connected to either the attachment material or the existing frame and positioned on the outdoor side of the bridge material, and the indoor frame portion has an indoor fixing portion connected to either the attachment material or the existing frame and positioned on the indoor side of the bridge material. [Brief explanation of the drawings]

[0007] [Figure 1] This is a vertical cross-sectional view showing the existing fixtures before renovation. [Figure 2] This is a horizontal cross-sectional view showing the existing fixtures before renovation. [Figure 3] FIG. 1 is a vertical cross-sectional view showing the renovated fixtures. [Figure 4] This is a horizontal cross-sectional view showing renovated building materials. [Figure 5] FIG. 4 is an enlarged view of part V in FIG. 3. [Figure 6] FIG. 4 is an enlarged view of a portion VI in FIG. 3. [Figure 7] FIG. 10 is an enlarged view of a V portion of the second embodiment. [Figure 8] FIG. 11 is an enlarged view of a V portion of the third embodiment. [Figure 9] FIG. 10 is an enlarged view of a V portion of the fourth embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] (First embodiment) A first embodiment of the renovation fittings of the present disclosure will be described below with reference to Figures 1 to 6. The following embodiment shows one aspect of the present disclosure, does not limit the disclosure, and can be modified as desired within the scope of the technical concept of the present disclosure. In addition, in the following drawings, the scale of each structure is different from the actual structure to make each configuration easier to understand.

[0009] In the following embodiment, an example of renovating a fixture will be described by taking an example of renovating an existing sliding window into a new sliding window. As shown in Figures 1 and 2, the existing sliding window 9 is installed in an opening of a building. The existing sliding window 9 includes an existing frame 90 and an existing shoji screen 98. The existing sliding window 9 will be simply referred to as the sliding window 9.

[0010] In the following explanation, the direction connecting the outdoor side and the indoor side and running horizontally will be referred to as the indoor-outdoor direction. The direction perpendicular to the indoor-outdoor direction and running horizontally will be referred to as the left-right direction. The direction perpendicular to the indoor-outdoor direction and the left-right direction will be referred to as the up-down direction. The indoor-outdoor direction is indicated by arrow Y, with the outdoor side indicated by the +Y side and the indoor side indicated by the -Y side. The left-right direction is indicated by arrow X. The up-down direction is indicated by arrow Z.

[0011] The existing frame 90 has an existing upper frame 91, an existing lower frame 92, and a pair of existing vertical frames 93, 93 shown in FIG.

[0012] The existing upper frame 91, the existing lower frame 92, and the pair of existing vertical frames 93, 93 are made of metal components such as aluminum alloy. As shown in FIG. 1, the existing upper frame 91 is arranged along the upper edge of the building opening. The existing lower frame 92 is arranged along the lower edge of the building opening. The existing upper frame 91 and the existing lower frame 92 extend in the left-right direction. As shown in FIG. 2, the existing vertical frame 93 is arranged along the left-right edges of the building opening. The existing vertical frame 93 extends in the up-down direction. The upper end of the existing vertical frame 93 is connected to the left-right ends of the existing upper frame 91. The lower end of the existing vertical frame 93 is connected to the left-right ends of the existing lower frame 92. The existing upper frame 91, the existing lower frame 92, and the pair of existing vertical frames 93, 93 form a four-sided frame. The existing shoji screen 98 is arranged inside the existing frame 90, which is formed into a four-sided frame.

[0013] As shown in Figures 3 and 4, the newly installed sliding window 1 comprises a new frame 10, an attachment material 20, and a new shoji screen 4. The newly installed sliding window 1 will be simply referred to as a sliding window 1. The sliding window 1 corresponds to the renovated fixture in the claims.

[0014] The new frame 10 has a new upper frame 11, a new lower frame 16, and a pair of new vertical frames 31, 31. The attachment material 20 has a first upper attachment material 21, a second upper attachment material 22, a first lower attachment material 23, a second lower attachment material 24, a pair of first side attachment materials 33, 33, and a pair of second side attachment materials 34, 34.

[0015] As shown in FIG. 5, a configuration will be described in which a new upper frame 11 is fixed to an existing upper frame 91 via a first upper attachment member 21 and a second upper attachment member 22.

[0016] The existing upper frame 91 is provided over approximately the entire length in the left-right direction of the existing frame 90. The existing upper frame 91 has an upper plate portion 911, an outdoor plate portion 912, an indoor plate portion 913, and a hanging plate portion 914.

[0017] The upper plate portion 911 is formed in a flat plate shape. The plate surface of the upper plate portion 911 faces the vertical direction. The outdoor plate portion 912 extends upward from the outdoor-side end of the upper plate portion 911. The outdoor plate portion 912 is formed in a flat plate shape. The plate surface of the outdoor plate portion 912 faces the indoor-outdoor direction. The indoor plate portion 913 extends upward from the indoor-side end of the upper plate portion 911. The indoor plate portion 913 is formed in a flat plate shape. The plate surface of the indoor plate portion 913 faces the indoor-outdoor direction. The hanging plate portion 914 extends downward from a portion of the upper plate portion 911 that is closer to the indoor side than the center in the indoor-outdoor direction. The hanging plate portion 914 is formed in a flat plate shape. The plate surface of the hanging plate portion 914 faces the indoor-outdoor direction.

[0018] The newly installed upper frame 11 has an outdoor upper frame section 12, an indoor upper frame section 13, and an upper frame bridge material 14. The outdoor upper frame section 12 corresponds to the outdoor side frame section in the claims. The indoor upper frame section 13 corresponds to the indoor side frame section in the claims. The upper frame bridge material 14 corresponds to the bridge material in the claims.

[0019] The outdoor upper frame portion 12 is made of a metal member such as an aluminum alloy, and has an upper frame plate portion 121, a lower frame plate portion 122, an outer connecting portion 123, an inner connecting portion 124, and an outdoor fixing portion 125.

[0020] The upper frame plate portion 121 is formed in a flat plate shape. The plate surface of the upper frame plate portion 121 faces the vertical direction. The upper frame plate portion 121 is located at the top of the outdoor-side upper frame portion 12.

[0021] The lower frame plate portion 122 is disposed below the upper frame plate portion 121. The lower frame plate portion 122 is formed in a flat plate shape. The plate surface of the lower frame plate portion 122 faces in the vertical direction.

[0022] The outer connecting portion 123 connects the outdoor portion of the upper frame plate portion 121 to the outdoor portion of the lower frame plate portion 122. The inner connecting portion 124 connects the indoor portion of the upper frame plate portion 121 to the indoor portion of the lower frame plate portion 122. The inner connecting portion 124 is provided with a pair of locking walls 124a, 124a that protrude toward the indoor side. The pair of locking walls 124a, 124a are arranged spaced apart in the vertical direction.

[0023] The outdoor fixing part 125 extends upward from the indoor end of the upper frame plate part 121. The outdoor fixing part 125 is formed in a flat plate shape. The plate surface of the outdoor fixing part 125 faces the indoor / outdoor direction. The outdoor fixing part 125 is positioned on the outdoor side of the upper frame bridge material 14.

[0024] The indoor side upper frame portion 13 is located closer to the indoor side than the outdoor side upper frame portion 12. The indoor side upper frame portion 13 is made of a metal member such as an aluminum alloy. The indoor side upper frame portion 13 has a frame plate portion 131, an outer plate portion 132, and an indoor side fixing portion 133.

[0025] The frame plate portion 131 is formed in a flat plate shape. The plate surface of the frame plate portion 131 faces the vertical direction. The outer plate portion 132 extends in the vertical direction from the outdoor end of the frame plate portion 131. The outer plate portion 132 is formed in a flat plate shape. The plate surface of the outer plate portion 132 faces the indoor / outdoor direction. The outer plate portion 132 is provided with a pair of locking walls 134a, 134a that protrude toward the outdoor side. The pair of locking walls 134a, 134a are arranged spaced apart in the vertical direction.

[0026] The indoor side fixing portion 133 extends vertically from the indoor side end of the frame plate portion 131. The indoor side fixing portion 133 is formed in a flat plate shape. The plate surface of the indoor side fixing portion 133 faces the indoor / outdoor direction. The indoor side fixing portion 133 is positioned on the indoor side of the upper frame bridge material 14.

[0027] The upper frame bridge material 14 is made of a resin material. The outdoor side portion of the upper frame bridge material 14 is engaged with a pair of locking walls 124a, 124a of the outdoor side upper frame portion 12. The indoor side portion of the upper frame bridge material 14 is engaged with a pair of locking walls 134a, 134a of the indoor side upper frame portion 13. The upper frame bridge material 14 connects the outdoor side upper frame portion 12 and the indoor side upper frame portion 13.

[0028] The first upper attachment material 21 is made of a metal member such as steel or aluminum alloy. The first upper attachment material 21 is provided over substantially the entire length of the new upper frame 11 in the left-right direction. The first upper attachment material 21 connects the outdoor side portion of the new upper frame 11 with the outdoor side portion of the existing upper frame 91. The first upper attachment material 21 has a first closing wall portion 211 and an upper bent attachment wall portion 212. The first closing wall portion 211 corresponds to the closing wall portion in the claims.

[0029] The first blocking wall 211 is formed in a flat plate shape. The plate surface of the first blocking wall 211 faces the indoor / outdoor direction. The lower part of the first blocking wall 211 is arranged overlapping the indoor side of the outdoor-side fixing part 125 of the outdoor-side upper frame 12. The screws 126 are inserted into the mounting holes of the outdoor-side fixing part 125 and screwed into the screw holes of the first blocking wall 211. The part of the first blocking wall 211 that is connected to the outdoor-side fixing part 125 is arranged on the outdoor side of the bridge member 14. The upper end of the first blocking wall 211 abuts against the upper plate part 911 of the existing upper frame 91. The first blocking wall 211 blocks the space between the outdoor-side fixing part 125 of the outdoor-side upper frame 12 and the upper plate part 911 of the existing upper frame 91 in the vertical direction. The first blocking wall 211 may be arranged on the outdoor side of the outdoor-side fixing part 125 of the outdoor-side upper frame 12.

[0030] The upper bending attachment wall portion 212 extends from the upper end portion of the first blocking wall portion 211 toward the indoor side. The upper bending attachment wall portion 212 is formed in a flat plate shape. The plate surface of the upper bending attachment wall portion 212 faces the vertical direction. The upper bending attachment wall portion 212 is arranged below the upper plate portion 911 of the existing upper frame 91. The screw 915 is inserted into the mounting hole of the upper bending attachment wall portion 212 and is screwed into the screw hole of the upper plate portion 911. The upper bending attachment wall portion 212 may extend from the upper end portion of the first blocking wall portion 211 toward the outdoor side.

[0031] The second upper attachment material 22 is made of a metal member such as steel or aluminum alloy. The second upper attachment material 22 is provided over substantially the entire length of the new upper frame 11 in the left-right direction. The second upper attachment material 22 connects the indoor side portion of the new upper frame 11 and the indoor side portion of the existing upper frame 91. The second upper attachment material 22 has a second blocking wall portion 221, a middle bent attachment wall portion 222, and a fixed attachment wall portion 223. The second blocking wall portion 221 corresponds to the blocking wall portion in the claims.

[0032] The second blocking wall portion 221 is formed in a flat plate shape. The plate surface of the second blocking wall portion 221 faces the indoor / outdoor direction. The second blocking wall portion 221 is arranged overlapping the indoor side of the indoor-side fixing portion 133 of the indoor-side upper frame portion 13. The screws 136 are inserted into the mounting holes of the second blocking wall portion 221 and screwed into the threaded holes of the indoor-side fixing portion 133. The portion of the second blocking wall portion 221 that connects to the indoor-side fixing portion 133 is arranged indoors relative to the bridge member 14. The upper end of the second blocking wall portion 221 abuts the lower end of the hanging plate portion 914 of the existing upper frame 91. The second blocking wall portion 221 blocks the space between the indoor-side fixing portion 133 of the indoor-side upper frame portion 13 and the hanging plate portion 914 of the existing upper frame 91 in the vertical direction. The second blocking wall portion 221 may be arranged overlapping the outdoor side of the indoor-side fixing portion 133.

[0033] The middle bent attachment wall portion 222 extends from the upper end portion of the second blocking wall portion 221 toward the indoor side. The middle bent attachment wall portion 222 is formed in a flat plate shape. The plate surface of the middle bent attachment wall portion 222 faces the vertical direction. The middle bent attachment wall portion 222 is arranged below the hanging plate portion 914 of the existing upper frame 91. If the hanging plate portion 914 of the existing upper frame 91 is arranged closer to the outdoor side than the second blocking wall portion 221, the middle bent attachment wall portion 222 may extend from the upper end portion of the second blocking wall portion 221 toward the outdoor side.

[0034] The fixed attachment wall portion 223 extends upward from the indoor-side end of the middle-folded attachment wall portion 222. The fixed attachment wall portion 223 is formed in a flat plate shape. The plate surface of the fixed attachment wall portion 223 faces the indoor / outdoor direction. The fixed attachment wall portion 223 is arranged on the indoor side of the hanging plate portion 914 of the existing upper frame 91. The screw 916 is inserted into the mounting hole of the fixed attachment wall portion 223 and screwed into the screw hole of the hanging plate portion 914 of the existing upper frame 91.

[0035] As shown in Figure 6, a configuration will be described in which the new lower frame 16 is fixed to the existing lower frame 92 via a first lower attachment material 23 and a second lower attachment material 24.

[0036] The existing lower frame 92 is provided over substantially the entire length in the left-right direction of the existing frame 90. The existing lower frame 92 has a first lower plate portion 921, an intermediate plate portion 922, and a second lower plate portion 923.

[0037] The first lower plate portion 921 is formed in a flat plate shape. The plate surface of the first lower plate portion 921 faces the vertical direction. The intermediate plate portion 922 extends upward from the indoor side end of the first lower plate portion 921. The second lower plate portion 923 extends from the upper end of the intermediate plate portion 922 towards the indoor side. The second lower plate portion 923 is formed in a flat plate shape. The plate surface of the second lower plate portion 923 faces the vertical direction. The second lower plate portion 923 is located at the top of the existing lower frame 92.

[0038] The new sill 16 has an outdoor sill portion 17, an indoor sill portion 18, and a sill bridge material 19. The outdoor sill portion 17 corresponds to the outdoor sill portion in the claims. The indoor sill portion 18 corresponds to the indoor sill portion in the claims. The sill bridge material 19 corresponds to the bridge material in the claims.

[0039] The outdoor-side lower frame portion 17 is made of a metal member such as an aluminum alloy, and has an upper frame plate portion 171, a lower frame plate portion 172, an outer connecting portion 173, an inner connecting portion 174, an extending wall portion 176, and an outdoor-side fixing portion 175.

[0040] The upper frame plate portion 171 is formed in a flat plate shape. The plate surface of the upper frame plate portion 171 faces in the vertical direction.

[0041] The lower frame plate portion 172 is disposed below the upper frame plate portion 171. The lower frame plate portion 172 is formed in a flat plate shape. The plate surface of the lower frame plate portion 172 faces the vertical direction.

[0042] The outer connecting portion 173 connects the outdoor portion of the upper frame plate portion 171 to the outdoor portion of the lower frame plate portion 172. The inner connecting portion 174 connects the indoor portion of the upper frame plate portion 171 to the indoor portion of the lower frame plate portion 172.

[0043] The extending wall portion 176 extends upward from the connection portion between the upper frame plate portion 171 and the inner connecting portion 174. The extending wall portion 176 is provided with a pair of locking walls 176a, 176a that protrude toward the indoor side.

[0044] The outdoor fixing portion 175 extends downward from the indoor end of the lower frame plate portion 172. The outdoor fixing portion 175 is formed in a flat plate shape. The plate surface of the outdoor fixing portion 175 faces the indoor / outdoor direction. The outdoor fixing portion 175 is positioned on the outdoor side of the lower frame bridge material 19.

[0045] The indoor side lower frame portion 18 is located closer to the indoor side than the outdoor side lower frame portion 17. The indoor side lower frame portion 18 is made of a metal member such as an aluminum alloy. The indoor side lower frame portion 18 has a frame plate portion 181, an outer plate portion 182, and an indoor side fixing portion 183.

[0046] The frame plate portion 181 is formed in a stepped shape with the indoor portion positioned higher than the outdoor portion.

[0047] The outer plate portion 182 extends downward from the outdoor end of the frame plate portion 181. The outer plate portion 182 is formed in a flat plate shape. The plate surface of the outer plate portion 182 faces the indoor / outdoor direction. The outer plate portion 182 is provided with a pair of locking walls 182a, 182a that protrude toward the outdoor side.

[0048] The indoor side fixing portion 183 extends vertically from the indoor side end of the frame plate portion 181. The indoor side fixing portion 183 is formed in a flat plate shape. The plate surface of the indoor side fixing portion 183 faces the indoor / outdoor direction. The indoor side fixing portion 183 is positioned on the indoor side of the lower frame bridge material 19.

[0049] The lower frame bridge material 19 is made of a resin member. The outdoor side portion of the lower frame bridge material 19 is engaged with a pair of locking walls 176a, 176a of the outdoor side lower frame portion 17. The indoor side portion of the lower frame bridge material 19 is engaged with a pair of locking walls 182a, 182a of the indoor side lower frame portion 18. The lower frame bridge material 19 connects the outdoor side lower frame portion 17 and the indoor side lower frame portion 18.

[0050] The first lower attachment member 23 is made of a metal member such as steel or aluminum alloy. The first lower attachment member 23 is provided over substantially the entire length of the new lower frame 16 in the left-right direction. The first lower attachment member 23 has a first closing wall portion 231 and a third closing wall portion 232. The first closing wall portion 231 corresponds to the closing wall portion in the claims. The third closing wall portion 232 corresponds to the closing wall portion in the claims.

[0051] The first blocking wall portion 231 is formed in a flat plate shape. The plate surface of the first blocking wall portion 231 faces the vertical direction. The first blocking wall portion 231 is arranged overlapping the upper side of the first lower plate portion 921 of the existing lower frame 92. Screws 924 are inserted into mounting holes in the first blocking wall portion 231 and screwed into screw holes in the first lower plate portion 921. The outdoor side end of the first blocking wall portion 231 protrudes further toward the outdoor side than the first lower plate portion 921. The first blocking wall portion 231 blocks the space between the outdoor-side fixing portion 175 of the outdoor-side lower frame portion 17 and the first lower plate portion 921 of the existing lower frame 92.

[0052] The third blocking wall 232 extends upward from the outdoor-side end of the first blocking wall 231. The third blocking wall 232 is formed in a flat plate shape. The plate surface of the third blocking wall 232 faces the indoor / outdoor direction. The third blocking wall 232 is disposed on the indoor side of the outdoor-side fixing part 175 of the outdoor-side lower frame 17. Screws 177 are inserted through mounting holes in the water flashing material 178 and the outdoor-side fixing part 175, and are screwed into the screw holes in the third blocking wall 232. The lower end of the third blocking wall 232 protrudes downward beyond the outdoor-side fixing part 175. The third blocking wall 232 blocks the space between the outdoor-side fixing part 175 of the outdoor-side lower frame 17 and the first lower plate part 921 of the existing lower frame 92. The corner portion formed by the first blocking wall portion 231 and the third blocking wall portion 232 blocks the space between the outdoor side fixing portion 175 of the outdoor side lower frame portion 17 and the first lower plate portion 921 of the existing lower frame 92.

[0053] The second lower attachment member 24 is made of a metal member such as steel or aluminum alloy. The second lower attachment member 24 is provided over substantially the entire length of the new lower frame 16 in the left-right direction. The second lower attachment member 24 has a second closing wall portion 241 and a lower bent attachment wall portion 242. The second closing wall portion 241 corresponds to the closing wall portion in the claims.

[0054] The second blocking wall portion 241 is formed in a flat plate shape. The plate surface of the second blocking wall portion 241 faces the indoor / outdoor direction. The second blocking wall portion 241 is arranged overlapping the indoor side of the indoor-side fixing portion 183 of the indoor-side lower frame portion 18. The screws 184 are inserted into the mounting holes of the second blocking wall portion 241 and screwed into the screw holes of the indoor-side fixing portion 183. The lower end of the second blocking wall portion 241 abuts against the second lower plate portion 923 of the existing lower frame 92. The second blocking wall portion 241 blocks the space between the indoor-side fixing portion 183 of the indoor-side lower frame portion 18 and the second lower plate portion 923 of the existing lower frame 92 in the vertical direction.

[0055] The lower bent attachment wall portion 242 extends indoors from the lower end of the second blocking wall portion 241. The lower bent attachment wall portion 242 is formed in a flat plate shape. The plate surface of the lower bent attachment wall portion 242 faces the vertical direction. The lower bent attachment wall portion 242 is arranged above the second lower plate portion 923 of the existing lower frame 92. The screws 925 are inserted into the mounting holes of the lower bent attachment wall portion 242 and screwed into the screw holes of the second lower plate portion 923 of the existing lower frame 92. If the second lower plate portion 923 of the existing lower frame 92 is arranged outdoors relative to the indoor-side fixing portion 183, the lower bent attachment wall portion 242 may extend outdoors from the lower end of the second blocking wall portion 241.

[0056] As shown in Figure 4, the outdoor side of the new vertical frame 31 is fixed to the existing vertical frame 93 via a first side attachment member 33. The indoor side of the new vertical frame 31 is fixed to the existing vertical frame 93 via a second side attachment member 34. The new upper frame 11, the new lower frame 16, and the pair of new vertical frames 31, 31 form a four-sided frame. The new shoji screen 4 is placed inside the new frame 10, which is formed in a four-sided frame shape.

[0057] In a sliding window 1 configured in this manner, the outdoor portion of the existing upper frame 91 and the outdoor portion of the new upper frame 11 are connected via a first upper attachment material 21. The indoor portion of the existing upper frame 91 and the indoor portion of the new upper frame 11 are connected via a second upper attachment material 22. If the upper frame bridge material 14 of the new upper frame 11 melts during a fire, the first upper attachment material 21 and the second upper attachment material 22 will hold the new upper frame 11 in place, preventing the new upper frame 11 from falling or deforming.

[0058] In the event of a fire, if the upper frame bridge material 14 of the newly constructed upper frame 11 melts, the first upper attachment material 21 will hold the outdoor side of the newly constructed upper frame 11 and the second upper attachment material 22 will hold the indoor side of the newly constructed upper frame 11, thereby preventing the newly constructed upper frame 11 from falling or deforming.

[0059] The gap on the outdoor side between the existing upper frame 91 and the new upper frame 11 is blocked by the first blocking wall portion 211 of the first upper attachment material 21. The gap on the indoor side between the existing upper frame 91 and the new upper frame 11 is blocked by the second blocking wall portion 221 of the second upper attachment material 22. In the event of a fire, the first blocking wall portion 211 and the second blocking wall portion 221 can prevent flames from entering the indoor side.

[0060] (Second embodiment) A second embodiment of the remodeling fixture of the present disclosure will be described mainly with reference to Fig. 7. In this figure, the same elements as those in the above-described embodiment are designated by the same reference numerals, and their description will be omitted.

[0061] In the first embodiment, the attachment material connecting the new upper frame 11 to the existing upper frame 91 has two members, a first upper attachment member 21 and a second upper attachment member 22. As shown in Figure 7, in this embodiment, the attachment material connecting the new upper frame 11 to the existing upper frame 91A has one member, an upper attachment member 21A.

[0062] The existing upper frame 91A is provided over substantially the entire length in the left-right direction of the existing frame 90. The existing upper frame 91A has an upper plate portion 917, an outdoor plate portion 918, and an indoor plate portion 919.

[0063] The upper plate portion 917 is formed in a flat plate shape. The plate surface of the upper plate portion 911 faces the vertical direction. The outdoor plate portion 918 extends downward from the outdoor end portion of the upper plate portion 911. The outdoor plate portion 918 is formed in a flat plate shape. The plate surface of the outdoor plate portion 918 faces the indoor / outdoor direction. The indoor plate portion 919 extends upward from the indoor end portion of the upper plate portion 911. The indoor plate portion 919 is formed in a flat plate shape. The plate surface of the indoor plate portion 919 faces the indoor / outdoor direction.

[0064] The upper attachment material 21A is made of a metal member such as steel or aluminum alloy. The upper attachment material 21A is provided over substantially the entire length of the new upper frame 11 in the left-right direction. The upper attachment material 21A has a first closing wall portion 211, a second closing wall portion 221A, and a connecting wall portion 224. The first closing wall portion 211 and the second closing wall portion 221A correspond to the closing wall portions in the claims.

[0065] The first blocking wall portion 211 is disposed overlapping the indoor side of the outdoor plate portion 918 of the existing upper frame 91A. Screws 126 are inserted into mounting holes in the outdoor fixing portion 125 and screwed into threaded holes in the first blocking wall portion 211. The upper end portion of the first blocking wall portion 211 abuts against the upper plate portion 917 of the existing upper frame 91. The first blocking wall portion 211 blocks the space between the outdoor fixing portion 125 of the outdoor upper frame portion 12 and the upper plate portion 917 of the existing upper frame 91 in the vertical direction.

[0066] The second blocking wall portion 221A is formed in a flat plate shape. The plate surface of the second blocking wall portion 221A faces the indoor / outdoor direction. The second blocking wall portion 221A is arranged opposite the indoor side of the first blocking wall portion 211. The second blocking wall portion 221A is arranged overlapping the indoor side of the indoor side fixing portion 133 of the indoor side upper frame portion 13. The screws 136 are inserted into the mounting holes of the second blocking wall portion 221A and screwed into the screw holes of the indoor side fixing portion 133. The portion of the second blocking wall portion 221A that is connected to the indoor side fixing portion 133 is arranged indoors relative to the bridge material 14. The upper end of the second blocking wall portion 221 reaches the height of the upper plate portion 917 of the existing upper frame 91.

[0067] The connecting wall portion 224 connects the upper end portion of the first closing wall portion 211 and the upper end portion of the second closing wall portion 221A. The connecting wall portion 224 is formed in a flat plate shape. The plate surface of the connecting wall portion 224 faces the vertical direction. The connecting wall portion 224 is arranged below the upper plate portion 917 of the existing upper frame 91A. The screw 915 is inserted into the mounting hole of the connecting wall portion 224 and screwed into the screw hole of the upper plate portion 917.

[0068] In the sliding window 1 configured in this manner, the outdoor portion of the existing upper frame 91A and the outdoor portion of the new upper frame 11 are connected via the first blocking wall portion 211 of the upper attachment material 21A. The indoor portion of the existing upper frame 91A and the indoor portion of the new upper frame 11 are connected via the second blocking wall portion 221A of the upper attachment material 21A. If the upper frame bridge material 14 of the new upper frame 11 melts during a fire, the first blocking wall portion 211 and the second blocking wall portion 221A will hold the new upper frame 11 in place, preventing the new upper frame 11 from falling or deforming.

[0069] In the event of a fire, if the upper frame bridge material 14 of the newly constructed upper frame 11 melts, the first blocking wall portion 211 will hold the outdoor side of the newly constructed upper frame 11 and the second blocking wall portion 221A will hold the indoor side of the newly constructed upper frame 11, thereby preventing the newly constructed upper frame 11 from falling or deforming.

[0070] The gap on the outdoor side between the existing upper frame 91A and the new upper frame 11 is blocked by the first blocking wall portion 211 of the upper attachment material 21A. The gap on the indoor side between the existing upper frame 91A and the new upper frame 11 is blocked by the second blocking wall portion 221A of the upper attachment material 21A. In the event of a fire, the first blocking wall portion 211 and the second blocking wall portion 221A can prevent flames from entering the indoor side.

[0071] (Third embodiment) A third embodiment of the remodeled fittings and fireproof structure for fittings of the present disclosure will be described mainly with reference to Fig. 8. In this figure, the same elements as those in the above-described embodiments are given the same reference numerals, and their description will be omitted.

[0072] As shown in Figure 8, in this embodiment, the outdoor portion of the new upper frame 11 and the outdoor portion of the existing upper frame 91 are directly fixed together with screws 126. The indoor portion of the new upper frame 11 and the indoor portion of the existing upper frame 91 are connected via upper attachment material 22B. The fireproof structure 100 includes an existing frame 90 and a sliding window 1.

[0073] The existing frame fixing portion 914B of the existing upper frame 91 extends downward from a portion of the upper plate portion 911 that is closer to the outdoor side than the center in the indoor / outdoor direction. The existing frame fixing portion 914B is formed in a flat plate shape. The plate surface of the existing frame fixing portion 914B faces the indoor / outdoor direction.

[0074] The outdoor fixing part 125 of the outdoor upper frame part 12 of the new upper frame 11 is positioned so as to overlap the outdoor side of the existing frame fixing part 914B of the existing upper frame 91. Screws 126 are inserted into mounting holes in the outdoor fixing part 125 and screwed into screw holes in the existing frame fixing part 914B. The part of the existing frame fixing part 914B that is connected to the outdoor fixing part 125 is positioned on the outdoor side of the bridge material 14.

[0075] The upper attachment member 22B is made of a metal member such as steel or aluminum alloy. The upper attachment member 22B is provided over substantially the entire length of the new upper frame 11 in the left-right direction. The upper attachment member 22B has a second closing wall portion 221A and an upper bent attachment wall portion 212B. The second closing wall portion 221A corresponds to the closing wall portion in the claims.

[0076] The upper bending attachment wall portion 212B extends from the upper end of the second blocking wall portion 221A toward the outdoors. The upper bending attachment wall portion 212B is formed in a flat plate shape. The plate surface of the upper bending attachment wall portion 212B faces the vertical direction. The upper bending attachment wall portion 212B is arranged below the upper plate portion 911 of the existing upper frame 91. A screw 915 is inserted into the mounting hole of the upper bending attachment wall portion 212B and screwed into the screw hole of the upper plate portion 911.

[0077] In the sliding window 1 and fireproof structure 100 for fittings configured in this manner, the outdoor portion of the existing upper frame 91 and the outdoor portion of the new upper frame 11 are directly fixed together with screws 126. The indoor portion of the existing upper frame 91 and the indoor portion of the new upper frame 11 are connected via upper attachment material 22B. If the upper frame bridge material 14 of the new upper frame 11 melts during a fire, the existing frame 90 and upper attachment material 22B will hold the new upper frame 11 in place, preventing the new upper frame 11 from falling or deforming.

[0078] In the event of a fire, if the upper frame bridge material 14 of the newly constructed upper frame 11 melts, the existing frame fixing portion 914B will hold the outdoor side of the newly constructed upper frame 11 and the second blocking wall portion 221A will hold the indoor side of the newly constructed upper frame 11, thereby preventing the newly constructed upper frame 11 from falling or deforming.

[0079] The second blocking wall portion 221A of the upper attachment material 22B blocks the indoor gap between the existing upper frame 91 and the new upper frame 11. In the event of a fire, the existing frame fixing portion 914B of the existing upper frame 91, the outdoor fixing portion 125 of the new upper frame 11, and the second blocking wall portion 221A can prevent flames from entering the indoor side.

[0080] (Fourth embodiment) A second embodiment of the remodeled fittings and fireproof structure for fittings of the present disclosure will be described mainly with reference to Fig. 9. In this figure, the same elements as those in the above-described embodiment are given the same reference numerals, and their description will be omitted.

[0081] As shown in Figure 9, in this embodiment, the indoor portion of the new upper frame 11 and the indoor portion of the existing upper frame 91 are directly fixed together with screws 916. The outdoor portion of the new upper frame 11 and the outdoor portion of the existing upper frame 91 are connected together via a first upper attachment material 21. The fireproof structure 100C includes an existing frame 90 and a sliding window 1.

[0082] The existing frame fixing portion 914C of the existing upper frame 91 extends downward from a portion of the upper plate portion 911 that is closer to the indoor side than the center in the indoor / outdoor direction. The existing frame fixing portion 914C is formed in a flat plate shape. The plate surface of the existing frame fixing portion 914C faces the indoor / outdoor direction.

[0083] The indoor-side fixing portion 133 of the new upper frame 11 is positioned so as to overlap the outdoor side of the existing frame fixing portion 914C of the existing upper frame 91. The screws 916 are inserted into the mounting holes of the existing frame fixing portion 914C and screwed into the screw holes of the indoor-side fixing portion 133. The portion of the existing frame fixing portion 914C that is connected to the indoor-side fixing portion 133 is positioned indoors relative to the bridge material 14.

[0084] The screw 126 is inserted into the mounting hole of the outdoor fixing part 125 and screwed into the screw hole of the first closing wall part 211 of the first upper attachment member 21. The part of the first closing wall part 211 that is connected to the outdoor fixing part 125 is located closer to the outdoor side than the bridge member 14. The first blocking wall portion 211 closes the space between the outdoor-side fixing portion 125 of the outdoor-side upper frame portion 12 and the upper plate portion 911 of the existing upper frame 91 in the vertical direction. The screw 915 is inserted into the mounting hole of the upper bent attachment wall portion 212 of the first upper attachment member 21 and is screwed into the screw hole of the upper plate portion 911.

[0085] In the sliding window 1 and fireproof structure 100C for fittings configured in this manner, the outdoor portion of the existing upper frame 91 and the outdoor portion of the new upper frame 11 are connected via the first upper attachment material 21. The indoor portion of the existing upper frame 91 and the indoor portion of the new upper frame 11 are directly fixed with screws 916. If the upper frame bridge material 14 of the new upper frame 11 melts during a fire, the first upper attachment material 21 and the existing frame 90 will hold the new upper frame 11 in place, preventing the new upper frame 11 from falling or deforming.

[0086] In the event of a fire, if the upper frame bridge material 14 of the newly constructed upper frame 11 melts, the first blocking wall portion 211 will hold the outdoor side of the newly constructed upper frame 11 and the existing frame fixing portion 914C will hold the indoor side of the newly constructed upper frame 11, thereby preventing the newly constructed upper frame 11 from falling or deforming.

[0087] The outdoor gap between the existing upper frame 91 and the new upper frame 11 is blocked by the first blocking wall portion 211 of the first upper attachment material 21. In the event of a fire, the first blocking wall portion 211, the existing frame fixing portion 914C of the existing upper frame 91, and the indoor fixing portion 133 of the new upper frame 11 can prevent flames from entering the indoor side.

[0088] While preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, it goes without saying that the present disclosure is not limited to these examples. The shapes and combinations of the components shown in the above examples are merely examples, and various modifications can be made based on design requirements, etc., without departing from the spirit of the present disclosure.

[0089] In the above embodiment, an example of renovating a fixture has been described in which an existing sliding window is renovated into a new sliding window, but this is not limited to this. The present invention can also be applied to other fixtures such as sliding doors, double sliding doors, hinged doors, vertical sliding windows, and fixed windows.

[0090] In the embodiment described above, the corner formed by the first blocking wall portion 231 and the third blocking wall portion 232 of the first lower attachment member 23 blocks the gap between the outdoor-side fixing portion 175 of the outdoor-side lower frame portion 17 and the first lower plate portion 921 of the existing lower frame 92, but this is not limited to this. When the first lower plate portion 921 of the existing lower frame 92 is at a height within the vertical range of the outdoor-side fixing portion 175 of the outdoor-side lower frame portion 17 and the outdoor end of the first lower plate portion 921 is positioned indoors relative to the outdoor-side fixing portion 175, only the first blocking wall portion 231 of the first lower attachment member 23 functions as a blocking wall portion that blocks the gap between the outdoor-side fixing portion 175 and the first lower plate portion 921. When the first lower plate portion 921 of the existing lower frame 92 is positioned below the outdoor-side fixing portion 175 of the outdoor-side lower frame portion 17, and the outdoor end of the first lower plate portion 921 is positioned outdoors relative to the outdoor-side fixing portion 175, only the third blocking wall portion 232 of the first lower attachment material 23 functions as a blocking wall that blocks the space between the outdoor-side fixing portion 175 and the first lower plate portion 921. Depending on the positional relationship between the existing frame 90 and the new frame 10 in the indoor / outdoor directions and the up-down direction, it is sufficient that at least a portion of the attachment material 20 functions as a blocking portion that blocks the space between the existing frame 90 and the new frame 10. [Explanation of symbols]

[0091] 1 Horizontal sliding window (renovated fixture), 10 New frame, 12 Outdoor upper frame part (Outdoor frame part), 13 Indoor upper frame part (Indoor frame part), 14 Upper frame bridge material (Bridge material), 17 Outdoor lower frame part (Outdoor frame part), 18 Indoor lower frame part (Indoor frame part), 19 Lower frame bridge material (Bridge material), 20 Attachment material, 90 Existing frame, 100, 100C Fireproof structure, 125, 175 Outdoor fixing part, 133, 183 Indoor fixing part, 211, 231 First blocking wall part (Blocking wall part), 221, 221A, 241 Second blocking wall part (Blocking wall part), 232 Third blocking wall part (Blocking wall part), 914B, 914C Existing frame fixing part

Claims

1. An attachment material that is fixed to an existing frame installed in an opening in a building; A new frame fixed to the attachment material, The new framework is as follows: A metal outdoor side frame, A metal indoor frame, a resin bridge member that connects the outdoor-side frame portion and the indoor-side frame portion, the outdoor-side frame portion has an outdoor-side fixing portion that is connected to either the attachment material or the existing frame and is disposed on the outdoor side of the bridge material, The indoor frame portion is connected to either the attachment material or the existing frame, and has an indoor fixing portion positioned inside the building relative to the bridge material.

2. the outdoor-side fixing portion is connected to a portion of either the attachment material or the existing frame that is positioned outdoors relative to the bridge material, The renovation fitting according to claim 1, wherein the indoor side fixing portion is connected to a portion of either the attachment material or the existing frame that is positioned indoors relative to the bridge material.

3. The attachment material is 3. A renovation fitting according to claim 1 or 2, further comprising a blocking wall portion fixed to one of the outdoor fixing portion and the indoor fixing portion, blocking the space between the existing frame and the new frame.

4. The attachment material is The renovation fitting according to claim 3, further comprising another blocking wall portion fixed to the other of the outdoor side fixing portion and the indoor side fixing portion, which blocks the space between the existing frame and the new frame.

5. An existing frame installed at the opening of the building, The remodeling fixture according to claim 3, The existing frame has an existing frame fixing portion extending toward the new frame, The other of the outdoor fixing part and the indoor fixing part is a fireproof structure of the building material fixed to the existing frame fixing part.

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