Fireproof fittings and method for installing thermal expansion fire-resistant members in fireproof fittings

Abstract

To improve workability of the installation of the thermal expansion fireproof material in the fire prevention housing part.SOLUTION: A board form part (extending region 520, side 631 of support member 52 with possibility of support member 63) is protruded to be located in the base of the recess to holding wood 3, 6 in a fire prevention housing part which a fringe part of glasswork 1 was inserted in the recess formed from frame body 2 and holding wood 3, 6, and thermal expansion fireproof material 9 is established to the board form part.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a fire-resistant fixture and a method for installing a thermally expandable fire-resistant member in the fire-resistant fixture. [Background technology]

[0002] Windows that are embedded in the building frame (walls, etc.) and cannot be opened or closed are known as fixed windows or fixed windows. There are cases where such fixed windows are desired to be used as fire protection equipment. In such cases, the fire resistance of the glass support parts is important in addition to the fire resistance of the glass panes that form the window.

[0003] In metal building fixtures with glass, the peripheral edge of the glass is received and fixed in a recess formed by a frame and a ledge, but in building fixtures that require fire resistance, a thermally expandable fire-resistant member is provided in the recess (Patent Document 1).

[0004] However, attaching a thermally expandable fire-resistant member to a recessed portion, which is a relatively small space, is time-consuming, and the time required for attaching the thermally expandable fire-resistant member can affect the overall efficiency of the glass installation work at the site. Furthermore, attaching the thermally expandable fire-resistant member is time-consuming not only in recessed portions that accommodate the peripheral edge of the glass, but also in other places where the thermally expandable fire-resistant member should be attached, such as in recessed positions. Furthermore, when thermally expandable fire-resistant members must be attached in multiple places, there is a risk that some thermally expandable fire-resistant members may be forgotten to be attached. [Patent Document 1] Patent Publication No. 2010-248836 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0005] The present invention aims to improve the workability of installing a thermally expandable fire-resistant member in a fire-resistant fixture. [Means for solving the problem]

[0006] The technical means adopted by the present invention are: In a fire-resistant fitting in which the peripheral portion of the glass is inserted into a recess formed by a frame body and a batten, The pressing edge has a plate-like portion protruding therefrom so as to be positioned on the bottom surface of the recess, The plate-shaped portion is provided with a thermal expansion fire-resistant member. It is a fire-resistant fixture. In one embodiment, the thermally expandable refractory member faces the space formed between the peripheral portion of the glass and the recess. The thermally expandable fire-resistant member is provided on a first surface of the plate-shaped portion, and the second surface of the plate-shaped portion may abut or contact the bottom surface of the recess, or may be close to it but not in contact with it. In one embodiment, the frame body comprises an upper frame and left and right vertical frames. Examples of fire-resistant fittings include, but are not limited to, fixed windows and doors with glass window sections.

[0007] Other technical means adopted by the present invention are: a first element having a surface facing a space intended to be closed by the thermally expandable fire-resistant member in the event of a fire; a second element provided adjacent to the first element; Including, A plate-shaped third element extending along the surface of the first element is protruded from the second element, the back surface of the third element is in contact with or close to the surface of the first element, and a thermally expandable fire-resistant member is provided on the surface of the third element, and the thermally expandable fire-resistant member faces the space. It is a fire-resistant fixture. In one embodiment, the second element is not located within the space.

[0008] Other technical means adopted by the present invention are: A flange having a plate-shaped portion protruding therefrom, the plate-shaped portion having a first surface on which a thermally expandable fire-resistant member is provided, The ledge is attached to the frame, and the ledge and the frame form a recess for receiving the peripheral portion of the glass. At the same time, the second surface of the plate-shaped portion is brought into contact with or close to the bottom surface of the recess, thereby placing the thermally expandable fire-resistant member so as to face the peripheral portion of the glass. A method for installing a thermally expandable fire-resistant member in a fire-resistant building fixture. [Effects of the Invention]

[0009] According to the present invention, in a fire-resistant fitting in which the peripheral portion of glass is inserted into a recess formed by a frame body and a batten, a plate-shaped portion is protruded from the batten so as to be positioned on the bottom surface of the recess, and a thermally expandable fire-resistant member is attached to this plate-shaped portion in advance.This allows the thermally expandable fire-resistant member to be installed at the same time as the batten is attached to the frame body, and even in cases where a thermally expandable fire-resistant member must be installed within the recess, the overall workability of the glass installation work can be improved. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a front view (viewed from a first side) of a fixed window according to the present embodiment. [Figure 2] 1 is a vertical cross-sectional view of a fixed window provided with a ledge according to a first embodiment. [Figure 3] In FIG. 2, the glass pane and the first part of the ridge have been removed and the second part of the ridge has been attached. [Figure 4] FIG. 10 is a vertical cross-sectional view of a fixed window with a ledge according to a second embodiment. [Figure 5] 1 is a cross-sectional view of a fixed window with a ledge according to a first embodiment. FIG. [Figure 6] In the left part of FIG. 5, the glass plate and the first part of the ridge are shown removed and the second part of the ridge is shown attached. [Figure 7] FIG. 10 is a diagram showing the left side portion of a cross-sectional view of a fixed window with a ledge according to a second embodiment. [Figure 8] 4 is a view showing a first member of the ledge attached to the lower frame in the ledge according to the first embodiment. FIG. [Figure 9] 10 is a view showing a second member of the ledge attached to the lower frame in the ledge according to the first embodiment. FIG. [Figure 10] FIG. 10 is a view showing the ledge attached to the lower frame in the ledge according to the second embodiment. [Figure 11] A figure showing a modified example of a ledge attached to the lower frame. [Figure 12] 10A and 10B are diagrams illustrating the operation of the setting block according to the present embodiment. [Figure 13] FIG. 2 is a diagram showing the first member of the batten attached to the upper frame and vertical frame in the batten according to the first embodiment. [Figure 14] FIG. 2 is a view showing the second member of the batten attached to the upper frame and vertical frame in the batten relating to the first embodiment. [Figure 15] A diagram showing the batten attached to the upper frame and vertical frame in the batten related to the second embodiment. [Figure 16] FIG. 10 is a front view of a door body provided with a glass window portion according to another embodiment. [Figure 17] FIG. 17 is a vertical cross-sectional view of FIG. 16, showing the support structure for the glass plate in the lower frame. [Figure 18] This is a cross-sectional view of the door end portion in Figure 16, showing the support structure for the glass plate in the vertical frame. [Figure 19] 10A and 10B are diagrams showing other modified examples of the ledge; [Figure 20] FIG. 1 is a diagram showing the mounting structure of a thermally expandable fire-resistant member in a building fixture. DETAILED DESCRIPTION OF THE INVENTION

[0011] [A] Overall structure of fixed windows An embodiment of the present invention will be described with reference to the drawings. This embodiment relates to a fixed window or a fixed window installed in a building skeleton (for example, a wall). As shown in FIG. 1, a fixed window comprises a glass plate 1 that constitutes the window glass and a frame 2 that supports the four edges of the glass plate 1, and is embedded in a wall W or the like so as to close an opening, thereby forming a window portion in the wall W. The fixed window according to this embodiment can be used as fire prevention equipment.

[0012] A FIX window consists of a four-sided frame or frame 2 and a glass pane 1 fitted into the frame 2 using a ledge 3 (see Figures 2 and 5) or a ledge 6 (see Figures 4 and 7). The frame 2, ledge 3 (first member 4, second member 5), and ledge 6 are made of steel plate (for example, steel or stainless steel) bent into a predetermined shape.

[0013] The glass plate 1 of a fixed window is a rectangular plate of a predetermined thickness, and has a first surface 10 and a second surface 11 that form the visible surfaces of the fixed window, an upper edge 12, a lower edge 13, a right edge 14, and a left edge 15. The glass plate 1 is made of glass with a predetermined fire resistance, such as wired glass, heat-resistant tempered glass, or heat-resistant crystallized glass. The glass plate 1 may be single-layer or double-glazed.

[0014] [B] Fixed window frame The frame body 2 of the fixed window will now be described. The frame body 2 is formed into a four-sided frame shape consisting of an upper frame 20 extending horizontally in the lateral direction, a lower frame 21 extending horizontally in the lateral direction, and left and right vertical frames 22, 23 extending vertically in the height direction. The battens 3 (first member 4, second member 5) and battens 6 are elongated members that extend along the upper frame 20, lower frame 21, and left and right vertical frames 22, 23 of the frame body 2.

[0015] [B-1] Upper frame The upper frame 20 of the frame body 2 will now be described. As shown in Figures 2 to 4, the upper frame 20, which is a long member extending horizontally, comprises a first visible surface 200 on the first side, a second visible surface 201 on the second side, and a bottom surface portion connecting the bottom ends of the first visible surface 200 and the second visible surface 201. The bottom surface portion comprises a first bottom surface 202 on the first visible surface 200 side, a second bottom surface 203 on the second visible surface 201 side, and a convex portion 204 located between the first bottom surface 202 and the second bottom surface 203.

[0016] In this embodiment, the dimension of the second lower surface 203 in the front-to-rear direction (view direction) is greater than the dimension of the first lower surface 202 in the front-to-rear direction (view direction), and the protrusion 204 is located at a position biased toward the first side with respect to the center of the lower surface in the front-to-rear direction (view direction). The protrusion 204 is made up of a first visible surface 2040 on the first side, a second visible surface 2041 on the second side, and a lower surface 2042.

[0017] A glass retaining member, i.e., flange 3 or flange 6, is fixed to the second lower surface 203 of the upper frame 20, positioned on the second side of the protrusion 204. A groove (recess) formed between the protrusion 204 and flange 3 or flange 6 is adapted to receive the upper end portion (peripheral portion) of the glass plate 1.

[0018] [B-2] Bottom frame The following describes the lower frame 21 of the frame body 2. As shown in Figures 2 to 4, the lower frame 21, which is a long member extending horizontally, is made up of a first visible surface 210 on the first side, a second visible surface 211 on the second side, and an upper surface portion connecting the upper ends of the first visible surface 210 and the second visible surface 211. The upper surface portion is made up of a first upper surface 212 on the first visible surface 210 side, a second upper surface 213 on the second visible surface 211 side, and a convex portion 214 located between the first upper surface 212 and the second upper surface 213.

[0019] In this embodiment, the dimension of second upper surface 213 in the front-rear direction (view direction) is greater than the dimension of first upper surface 212 in the front-rear direction (view direction), and protrusion 214 is located at a position biased toward the first side with respect to the center of the top surface in the front-rear direction (view direction). Protrusion 214 is made up of a first visible surface 2140 on the first side, a second visible surface 2141 on the second side, and an upper surface 2142.

[0020] A glass retaining member, i.e., flange 3 or flange 6, is fixed to the second upper surface 213 of the lower frame 21, positioned on the second side of the protrusion 204. A groove (recess) formed between the protrusion 204 and flange 3 or flange 6 is adapted to receive the lower end portion (peripheral portion) of the glass plate 1. The lower edge 13 of the glass plate 1 is adapted to be placed on a plurality of setting blocks SB1 (two in this embodiment) placed on the bottom surface of the groove (the second upper surface 213 of the lower frame 21).

[0021] [B-3] Vertical frame The left and right vertical frames 22, 23 of the frame body 2 will now be described. As shown in Figures 5 and 7, one of the vertical frames 22, which is a long member extending vertically, comprises a first visible surface 220 on the first side, a second visible surface 221 on the second side, and a visible surface portion connecting the inner ends of the first visible surface 220 and the second visible surface 221. The visible surface portion comprises a first visible surface 222 on the first visible surface 220 side, a second visible surface 223 on the second visible surface 221 side, and a recess 224 (see Figure 5) located between the first visible surface 222 and the second visible surface 223.

[0022] In this embodiment, the projection dimension of second projection surface 223 is smaller than the projection dimension of first projection surface 222, and recess 224 is positioned biased toward the second side in the projection direction of the projection surface portion. Recess 224 is composed of first projection surface 2240 on the first side, second projection surface 2241 on the second side, and bottom surface 2242 extending in the projection direction.

[0023] A glass retaining member, i.e., a flange 3 or a flange 6, is fixed to the recess 224 of the vertical frame 22 adjacent to a second visible surface 2241 of the recess 224. A groove (recess) is formed in the recess 224 by the flange 3 or the flange 6 provided in the recess 224, and the side edge portion (peripheral portion) of the glass plate 1 is accommodated in the groove.

[0024] 5, the other vertical frame 23, which is a vertically extending elongated member, comprises a first visible surface 230 on the first side, a second visible surface 231 on the second side, and a visible surface portion connecting the inner ends of the first visible surface 230 and the second visible surface 231. The visible surface portion comprises a first visible surface 232 on the first visible surface 230 side, a second visible surface 233 on the second visible surface 231 side, and a recessed portion located between the first visible surface 232 and the second visible surface 233. The recessed portion comprises a first visible surface 2340 on the first side, a second visible surface 2341 on the second side, and a bottom surface 2342 extending in the visible direction.

[0025] In this embodiment, the projection dimension of the second projection surface 233 is smaller than the projection dimension of the first projection surface 232, and the recess is located at a position biased toward the second side in the projection direction of the projection surface portion.

[0026] A glass retaining member, i.e., a flange 3 or a flange 6, is fixed to the recess of the vertical frame 23 adjacent to the second visible surface 2341 of the recess. A groove (recess) is formed within the recess by the flange 3 or the flange 6 provided in the recess, and the side edge portion (peripheral portion) of the glass plate 1 is accommodated in the groove.

[0027] [C] Fixing structure of batten in FIX window (first embodiment) [C-1] Push-in edge according to the first embodiment (first member 4 + second member 5) A first embodiment of a ridge used to support a glass pane 1 of a fixed window will be described with reference to Figures 2, 3, 5, 6, 8, 9, 13, and 14. The ridge 3 according to the first embodiment is formed by combining a first member 4 and a second member 5. The first member 4 is an elongated member extending along the upper frame 20, lower frame 21, and left and right vertical frames 22, 23 of the frame body 2. The first member 4 has a U-shaped cross section formed by a first visible surface 40, a second visible surface 41, and a projected surface 42. The second member 5 is an elongated member extending along the upper frame 20, lower frame 21, and left and right vertical frames 22, 23 of the frame body 2. The second member 5 has an L-shaped cross section formed by a projected edge 50 and a projected edge 51. In this embodiment, when attaching the glass plate 1, the second member 5 is first fixed to the upper frame 20, lower frame 21, and left and right vertical frames 22, 23 of the frame body 2 (see FIGS. 3 and 6), and the first member 4 is then fixed to the upper frame 20, lower frame 21, and left and right vertical frames 22, 23 of the frame body 2 so as to cover the second member 5. The first member 4 and second member 5 according to this embodiment have the same length dimension.

[0028] In the flange 3 composed of the first member 4 and the second member 5, the visible edge 50 of the second member 5 abuts against the inner surface of the first visible surface 40 of the first member 4. The plate thickness of the first member 4 and the plate thickness of the steel plate forming the frame body 2 are, for example, 1.5 to 1.6 mm, and the second plate thickness of the steel plate forming the second member 5 of the flange 3 is, for example, 3 mm or more. In a fixed window employing the buckling edge 3 according to the first embodiment, a groove (recess) for receiving and supporting the edge of the glass plate 1 is formed by the frame portion facing the edge of the first surface 10 of the glass plate 1 (the second visible surface 2041 of the convex portion 204 of the upper frame 20, the second visible surface 2141 of the convex portion 214 of the lower frame 21, the first visible surface 2240 of the concave portion 224 of the vertical frame 22, and the first visible surface 2340 of the concave portion of the vertical frame 23), and the buckling edge portion facing the edge of the second surface 11 of the glass plate 1 (the first visible surface 40 of the first member 4 + the visible edge 50 of the second member 5). The thickness of the buckling edge portion (for example, 3 mm + 1.5 to 1.6 mm) is greater than 3 mm. By increasing the thickness (at least 3 mm or more) of the visible edge 50 that forms the buckling edge 3 portion, deformation of the groove due to heat during a fire is suppressed, and the fire resistance of the glass support structure in the building material is improved. The batten 3 in the first embodiment has such a fireproof structure, but please note that the configuration of the batten 3 attached to the lower frame 21 is different from the configuration of the batten 3 attached to the upper frame 20 and vertical frames 22, 23, as explained below.

[0029] [C-2] Border attached to the bottom frame 8, the first member 4 of the ridge 3 attached to the lower frame 21 has a U-shaped cross section, which is made up of a first visible surface 40, a second visible surface 41, and a visible surface 42. The first visible surface 40 and the second visible surface 41 of the first member 4 are at the same height, and two rectangular notches 400 are formed at a distance in the width direction at the bottom end or tip of the first visible surface 40 (the side farther from the visible surface 42).

[0030] As shown in Figure 9, the second member 5 of the flange 3 attached to the lower frame 21 has an L-shaped cross section consisting of a visible edge 50 and a visible edge 51. Two setting blocks SB2 are fixed (welded) to the base end of the visible edge 50 (the corner with the visible edge 51), and the setting blocks SB2 protrude in the visible direction from the base end of the visible edge 50. The underside of the visible edge 51 and the underside of the setting blocks SB2 are flush with each other. The cross-sectional dimensions of each setting block SB2 are approximately the same as the notch 400 of the first member 4 (the area of the notch 400 is slightly larger), and the distance between two setting blocks SB2 is approximately the same as the distance between the two notches 400.

[0031] In this embodiment, when the flange 3 attached to the lower frame 21 is assembled from the first member 4 and the second member 5, the two setting blocks SB2 fixed to the second member 5 protrude in the projection direction from two notches 400 at the lower end of the first visible surface 40 of the first member 4. The lower surface of the setting blocks SB2 is flush with the lower surface of the projection edge 51 and the lower ends of the first visible surface 40 (excluding the notches 400) and second visible surface 41 of the first member 4.

[0032] In the push-in edge 3 attached to the bottom frame 21, the second member 5 is fixed to the bottom frame 21 by a screw 17 extending through a hole 511 formed in the projected edge 51, with the surface of the projected edge 51 abutting against the bottom frame 21 of the frame body 2. A hole 510 is formed in the projected edge 51 for inserting a screw 16 that fixes the first member 4. The first member 4 is fixed to the bottom frame 21 of the frame body 2 by a screw 16 extending through a hole 420 formed in the projected surface 42, with the edge of the first projected surface 40 and the edge of the second projected surface 41 abutting against the bottom frame 21 of the frame body 2, and the head of the screw 16 fits into the hole 420 flush with the projected surface 42.

[0033] When the pressing edge 3 is fixed to the lower frame 21, the lower end of the first visible surface 40 (excluding the cutout 400) and the second visible surface 41 of the first member 4, and the lower surface of the visible edge 51 of the second member 5 abut against the second upper surface 213 of the lower frame 21, and the lower surface of the setting block SB2 is in contact with or close to the bottom surface of the groove portion (recess) (part of the second upper surface 213).

[0034] [C-3] Upper frame, vertical frame attached to the batten As shown in Figure 13, the first member 4 of the batten 3 attached to the upper frame 20 and the vertical frames 22, 23 has a U-shaped cross section, consisting of a first visible surface 40, a second visible surface 41, and a visible surface 42. In the first member 4, the height of the first visible surface 40 is slightly lower than the height of the second visible surface 41. In other words, the distance from the tip of the first visible surface 40 to the visible surface 42 is slightly shorter than the distance from the tip of the second visible surface 41 to the visible surface 42. In the first member 4, the difference in height between the first visible surface 40 and the second visible surface 41 is approximately the same as the plate thickness of the support member 52 fixed to the second member 5.

[0035] As shown in Figure 14, a plate-shaped support member 52 is fixed (welded) to the front edge 51 of the second member 5 of the batten 3, which is attached to the upper frame 20 and the vertical frames 22 and 23. The support member 52 is a long member that extends the entire length of the second member 5, and has an extension 520 that protrudes from the front edge 50. A thermally expandable fire-resistant member 9 is provided along the entire length of the extension 520 of the support member 52. When the batten 3 is assembled from the first member 4 and the second member 5, the support member 52 abuts against the tip of the first front surface 40 and extends in the front direction (perpendicular to the first front surface 40), and the extension 520 is provided with a thermally expandable fire-resistant member 9.

[0036] The second member 5 of the batten 3 attached to the upper frame 20 and the vertical frames 22, 23 is fixed to the upper frame 20 and the left and right vertical frames 22, 23 of the frame body 2 by screws 17 extending through holes 510 formed in the expected edge 51 and the support member 52, with the plate-shaped support member 52 fixed to the expected edge 51 abutting against the upper frame 20 and the left and right vertical frames 22, 23 of the frame body 2. The expected edge 51 and the support member 52 of the second member 5 have holes 511 formed therein for inserting screws 16 that secure the first member 4. The first member 4 is fixed to the upper frame 20 and the left and right vertical frames 22, 23 of the frame body 2 by screws 16 extending through holes 420 formed in the visible surface 42, with the edge of the second visible surface 41 abutting against the upper frame 20 and the left and right vertical frames 22, 23 of the frame body 2 and the edge of the first visible surface 40 abutting against or close to the support member 52, and the head of the screw 16 fits flush with the visible surface 42 in the hole 420.

[0037] When the clamping edge 3 is fixed to the upper frame 20 or the vertical frames 22, 23, the edge of the second visible surface 41 of the first member 4 and the support member 52 fixed to the second member 5 abut against the second lower surface 203, bottom surface 2242, and bottom surface 2342 of the upper frame 20 and the vertical frames 22, 23, and the back surface of the extension portion 520 of the support member 52 extending in the visible direction from the gap between the tip of the first visible surface 40 of the first member 4 and the second lower surface 203, bottom surface 2242, and bottom surface 2342 is in contact with or close to the bottom surface of the groove portion (recess) (the part of the second lower surface 203, the part of the bottom surface 2242, and the part of the bottom surface 2342), and a thermally expandable fire-resistant member 9 is provided on the surface of the extension portion 120.

[0038] [C-4] Fixing the upper end of the glass plate to the recess formed by the upper frame and the edge As shown in Figure 2, the ridge 3 provided on the upper frame 20 is fixed to the second lower surface 203 so that the first visible surface 40 of the first member 4 faces, at a distance, the second visible surface 2041 of the protrusion 204 of the upper frame 20, and the visible edge 50 of the second member 5 fixed to the second lower surface 203 abuts against the back or inner surface of the first visible surface 40 via the visible edge 51. The lower surface 2042 of the protrusion 204 of the upper frame 20 and the visible surface 42 of the first member 4 of the ridge 3 are flush with each other. The upper end portion of the glass plate 1 is received in a groove (recess) between the first visible surface 40 of the first member 4 of the ridge 3 and the second visible surface 2041 of the protrusion 204. With the upper end portion of the glass plate 1 received in the groove portion, the gap between the upper end portion of the first surface portion 10 of the glass plate 1 and the second visible surface 2041 of the convex portion 204, and the gap between the upper end portion of the second surface portion 11 of the glass plate 1 and the first visible surface 40 of the first member 4 of the pressing edge 3 are filled with backup material 7 and sealing material 8.

[0039] An extension 520 of a support member 52 fixed to the second member 5 of the flange 3 is positioned in contact with or close to the bottom surface of the groove (the portion of the second lower surface 203) so as to cover the bottom surface, and a thermally expandable fire-resistant member 9 is provided on the extension 520 over its entire length (the length along the width direction of the glass plate 1). When the upper end portion of the glass plate 1 is received in the groove, the upper edge 12 of the glass plate 1 faces but is spaced from the bottom surface of the groove, i.e., the thermally expandable fire-resistant member 9 provided on the extension 520 of the support member 52 fixed to the second member 5. The thermally expandable fire-resistant member 9 foams due to heat during a fire, closing the gap between the upper end portion of the glass plate 1 and the groove.

[0040] [C-5] Fixing the lower end of the glass plate to the recess formed by the lower frame and the edge As shown in Fig. 2, the flange 3 provided on the lower frame 21 is fixed to the second upper surface 213 so that the first visible surface 40 of the first member 4 faces, at a distance, the second visible surface 2141 of the protrusion 214 of the lower frame 21, and the visible edge 50 of the second member 5 fixed to the second upper surface 213 abuts against the back or inner surface of the first visible surface 40 via a visible edge 51. The upper surface 2142 of the protrusion 214 of the lower frame 21 and the visible surface 42 of the first member 4 of the flange 3 are flush with each other. The lower end portion of the glass plate 1 is received in a groove (recess) between the first visible surface 40 of the first member 4 of the flange 3 and the second visible surface 2141 of the protrusion 214. With the lower end portion of the glass plate 1 received in the groove portion, the gap between the lower end portion of the first surface portion 10 of the glass plate 1 and the second visible surface 2141 of the convex portion 214, and the gap between the lower end portion of the second surface portion 11 of the glass plate 1 and the first visible surface 40 of the first member 4 of the pressing edge 3 are filled with backup material 7 and sealing material 8.

[0041] With the lower end portion of the glass sheet 1 received in the groove, the lower edge 13 of the glass sheet 1 is supported on the upper surface of a setting block SB1 placed on the bottom surface of the groove (formed by the second upper surface 213). In one embodiment, the setting block SB1 is a rubber block. A steel setting block SB2 fixed to the second member 5 is in contact with or close to the bottom surface of the groove. In the embodiment shown, the setting block SB2 is located adjacent to the setting block SB1. The setting block SB2 is shorter than the setting block SB1. More specifically, the upper surface of the setting block SB2 is located lower than the upper surface of the setting block SB1, and the upper surface of the setting block SB2 is spaced below the lower edge 13 of the glass sheet 1 (see the upper view of Figure 12). When the heat of a fire causes the rubber setting block SB1 to melt and deform (the deformed state is shown as SB1' in the conceptual diagram at the bottom of Figure 12) or disappear, the glass plate 1 drops downward, but at this time the lower edge 13 of the glass plate 1 is supported by the upper surface of the steel setting block SB2 (see the bottom of Figure 12).

[0042] The lower edge 13 of the glass plate 1 and the bottom surface of the groove (formed from the second upper surface 213) are spaced apart except for the portions that abut against the setting blocks SB1 and SB2, and a thermally expandable fire-resistant member 9 is provided on the bottom surface of the groove (formed from the second upper surface 213), so that the thermally expandable fire-resistant member 9 foams due to the heat in the event of a fire, thereby sealing the gap between the lower end portion of the glass plate 1 and the groove.

[0043] [C-6] Fixing the side edge of the glass plate to the recess formed by the vertical frame and the batten As shown in Figure 5, the ridge 3 provided on the vertical frame 22 is fixed to the bottom surface 2242 of the recess 224 of the vertical frame 22 so that the first visible surface 40 of the first member 4 faces the first visible surface 2240 of the recess 224 of the vertical frame 22 at a distance, and the visible edge 50 of the second member 5 fixed to the bottom surface 2242 of the recess 224 abuts against the back or inner surface of the first visible surface 40 via a visible edge 51. The first visible surface 222 and the second visible surface 223 of the vertical frame 22 are substantially flush with the visible surface 42 of the first member 4 of the ridge 3. One side edge of the glass plate 1 is received in a groove (recess) between the first visible surface 40 of the first member 4 of the ridge 3 and the first visible surface 2240 of the recess 224. With one side edge of the glass plate 1 received in the groove, the gap between the side edge of the first surface 10 of the glass plate 1 and the first visible surface 2240 of the recess 224, and the gap between the side edge of the second surface 11 of the glass plate 1 and the first visible surface 40 of the first member 4 of the pressing edge 3 are filled with backup material and sealing material.

[0044] An extension 520 of a support member 52 fixed to the second member 5 of the flange 3 is positioned in contact with or close to the bottom surface of the groove (formed by the bottom surface 2242 of the recess 224) so as to cover the bottom surface, and a thermally expandable fire-resistant member 9 is provided on the extension 520 over its entire length (the length along the height direction of the glass plate 1). When one side edge of the glass plate 1 is received in the groove, the right edge 14 of the glass plate 1 faces but is spaced from the bottom surface of the groove, i.e., the thermally expandable fire-resistant member 9 provided on the extension 520 of the support member 52 fixed to the second member 5. The thermally expandable fire-resistant member 9 foams due to heat during a fire, closing the gap between the side edge of the glass plate 1 and the groove.

[0045] As shown in Fig. 5, the ridge 3 provided on the vertical frame 23 is fixed to the bottom surface 2342 of the recess so that the first visible surface 40 of the first member 4 faces the first visible surface 2340 of the recess of the vertical frame 23 at a distance, and the visible edge 50 of the second member 5 fixed to the bottom surface 2342 of the recess abuts against the back or inner surface of the first visible surface 40 via a visible edge 51. The first visible surface 232 and the second visible surface 233 of the vertical frame 23 are substantially flush with the visible surface 42 of the first member 4 of the ridge 3. The other side edge of the glass plate 1 is received in a groove (recess) between the first visible surface 40 of the first member 4 of the ridge 3 and the first visible surface 2340 of the recess. With the other side edge portion of the glass plate 1 received in the groove portion, the gap between the side edge portion of the first surface portion 10 of the glass plate 1 and the first visible surface 2340 of the recess, and the gap between the side edge portion of the second surface portion 11 of the glass plate 1 and the first visible surface 40 of the first member 4 of the pressing edge 3 are filled with backup material 7 and sealing material 8.

[0046] An extension 520 of a support member 52 fixed to the second member 5 of the flange 3 is positioned in contact with or close to the bottom surface of the groove (formed from the bottom surface 2342 of the recess) so as to cover the bottom surface, and a thermally expandable fire-resistant member 9 is provided on the extension 520 over its entire length (the length along the height direction of the glass plate 1). When one side edge of the glass plate 1 is received in the groove, the left edge 15 of the glass plate 1 faces but is spaced from the bottom surface of the groove, i.e., the thermally expandable fire-resistant member 9 provided on the extension 520 of the support member 52 fixed to the second member 5. The thermally expandable fire-resistant member 9 foams due to heat during a fire, closing the gap between the side edge of the glass plate 1 and the groove.

[0047] [C-7] Edge fixing structure The following describes the mounting structure or fixing structure of the batten 3. In the second lower surface 203 of the upper frame 20, the second upper surface 213 of the lower frame 21, the bottom surface 2242 of the recess 224 of the vertical frame 22, and the bottom surface 2342 of the recess of the vertical frame 22, insertion holes for the screws 16 and 17 are formed in areas adjacent to the areas forming the bottom surfaces of the grooves. A backup plate 18 (in one embodiment, a long member extending in the length direction of the upper frame 20, the lower frame 21, and the vertical frames 22, 23) is fixed (welded) to the backsides of the second lower surface 203, the second upper surface 213, the bottom surface 2242, and the bottom surface 2342, at least positioned outside these insertion holes, and the backup plate 18 is formed with female screws to which the screws 16 and the screws 17 are fixed, corresponding to these insertion holes, and the screws 16 to which the screws 17 are fixed are fixed to the backup plate 18, respectively. Note that the screws 16 may also be fixed to the second member 5.

[0048] [D] Fixing structure of batten in FIX window (second embodiment) [D-1] Second embodiment of ridge (ridge 6) A second embodiment of a batten 6 used to support a glass pane 1 of a fixed window will be described with reference to Figures 4, 7, 10, and 15. The batten 6 according to the second embodiment is a long member extending along the upper frame 20, the lower frame 21, and the left and right vertical frames 22, 23. The batten 6 has a U-shaped cross section from a first visible surface 60, a second visible surface 61, and a visible surface 62. The batten 6 is fixed to the upper frame 20, the lower frame 21, and the left and right vertical frames 22, 23 of the frame body 2 by screws 16 extending through holes 620 formed in the visible surface 62, with the edges of the first visible surface 60 and the second visible surface 61 abutting against the upper frame 20, the lower frame 21, and the left and right vertical frames 22, 23 of the frame body 2. The heads of the screws 16 fit flush with the holes.

[0049] The thickness of the steel plate forming the flange 6 is greater than the thickness of the steel plate forming the frame 2. The thickness of the steel plate forming the frame 2 is, for example, 1.5 to 1.6 mm, and the thickness of the steel plate forming the flange 6 is, for example, 3 mm. In a fixed window that employs the buckle 6 according to the second embodiment, a groove (recess) that receives and supports the end of the glass plate 1 is formed by the part of the frame that faces the end of the first surface 10 of the glass plate 1 (the second visible surface 2041 of the convex portion 204 of the upper frame 20, the second visible surface 2141 of the convex portion 214 of the lower frame 21, the first visible surface 2240 of the recess 224 of the vertical frame 22, and the first visible surface 2340 of the recess of the vertical frame 23) and the part of the buckle 6 that faces the end of the second surface 11 of the glass plate 1 (the first visible surface 60). The thickness of the buckle portion is 3 mm or more (for example, 3 mm). By increasing the thickness of the buckle 6, deformation of the groove due to heat during a fire is suppressed, improving the fire resistance of the glass support structure in the building material. The batten 6 in the second embodiment has such a fireproof structure, but please note that the configuration of the batten 6 attached to the lower frame 21 is different from the configuration of the batten 6 attached to the upper frame 20 and vertical frames 22, 23, as explained below.

[0050] [D-2] Edge attached to the bottom frame As shown in Figure 10, the ledge 6 attached to the lower frame 21 has a U-shaped cross section, consisting of a first visible surface 60, a second visible surface 61, and a visible surface 62. Two setting blocks SB2 are fixed (welded) to the leading end or bottom end (the side farther from the visible surface 62) of the first visible surface 60, spaced apart in the longitudinal direction of the ledge 6 (the direction along the width of the glass plate 1) (only one of the setting blocks SB2 is shown in Figure 10). The setting block SB2 protrudes from the bottom end of the first visible surface 60 in the visible direction (perpendicular to the first visible surface 60). The bottom surface of the setting block SB2 is flush with the leading end (bottom end) of the first visible surface 60.

[0051] [D-3] Upper frame, vertical frame attached to the batten As shown in FIG. 15 , the batten 6 attached to the upper frame 20 and the vertical frames 22 and 23 has a U-shaped cross section, consisting of a first visible surface 60, a second visible surface 61, and a visible surface 62. A support member 63 having an L-shaped cross section is fixed (welded) to the first visible surface 60. The support member 63 is a long member having the same length as the batten 6. The support member 63 has an L-shaped cross section, consisting of a visible edge 630 and a visible edge 631. The visible edge 630 is fixed (welded) to the outer surface of the first visible surface 60 of the batten 6. The visible edge 631 protrudes in the visible direction, and the lower surface (rear surface) of the visible edge 631 is flush with the leading edge (lower end) of the first visible surface 60. A thermally expandable fire-resistant member 9 is provided on the upper surface (front surface) of the visible edge 631 of the support member 63 along the length (direction along the width direction of the glass plate 1).

[0052] [D-4] Fixing the upper end of the glass plate to the recess formed by the upper frame and the edge As shown in Fig. 4, the ridge 6 provided on the upper frame 20 is fixed to the second lower surface 203 so that the first visible surface 60 faces the second visible surface 2041 of the protrusion 204 of the upper frame 20 at a distance, the lower surface 2042 of the protrusion 204 of the upper frame 20 and the visible surface 62 of the ridge 6 are flush with each other, and the upper end portion of the glass plate 1 is received in a groove (recess) between the first visible surface 60 of the ridge 6 and the second visible surface 2041 of the protrusion 204 with the upper frame 20 in a state where the upper end portion of the glass plate 1 is received in the groove. With the upper end portion of the glass plate 1 received in the groove, a backup material 7 and a sealing material 8 are filled in the gap between the upper end of the first surface 10 of the glass plate 1 and the second visible surface 2041 of the protrusion 204, and in the gap between the upper end of the second surface 11 of the glass plate 1 and the first visible surface 60 of the ridge 6.

[0053] A projected edge 631 of a support member 63 fixed to the flange 6 is positioned in contact with or close to the bottom surface of the groove (formed from the second lower surface 203) so as to cover the bottom surface, and a thermally expandable fire-resistant member 9 is provided along the entire length (the length along the width direction of the glass plate 1) of the projected edge 631. When the upper end portion of the glass plate 1 is received in the groove, the upper edge 12 of the glass plate 1 faces but is spaced apart from the bottom surface of the groove, i.e., the thermally expandable fire-resistant member 9 provided on the projected edge 631 of the support member 63 fixed to the flange 6. The thermally expandable fire-resistant member 9 foams due to heat during a fire, closing the gap between the upper end portion of the glass plate 1 and the groove.

[0054] [D-5] Fixing the lower end of the glass plate to the recess formed by the lower frame and the edge 4, the ridge 6 provided on the lower frame 21 is fixed to the second upper surface 213 so that the first visible surface 60 faces the second visible surface 2141 of the protrusion 214 of the lower frame 21 at a distance, and the upper surface 2142 of the protrusion 214 of the lower frame 21 and the visible surface 62 of the ridge 6 are flush with each other, and the lower end portion of the glass plate 1 is received in a groove (recess) between the first visible surface 60 of the ridge 6 and the second visible surface 2141 of the protrusion 214. With the lower end portion of the glass plate 1 received in the groove, a backup material 7 and a sealing material 8 are filled in the gap between the lower end of the first surface 10 of the glass plate 1 and the second visible surface 2141 of the protrusion 214, and in the gap between the lower end of the second surface 11 of the glass plate 1 and the first visible surface 60 of the ridge 6.

[0055] With the lower end portion of the glass sheet 1 received in the groove, the lower edge 13 of the glass sheet 1 is supported on the upper surface of a setting block SB1 placed on the bottom surface of the groove (formed by the second upper surface 213). In one embodiment, the setting block SB1 is a rubber block. A steel setting block SB2 fixed to the second member 5 is in contact with or close to the bottom surface of the groove. In the embodiment shown, the setting block SB2 is located adjacent to the setting block SB1. The setting block SB2 is shorter than the setting block SB1. More specifically, the upper surface of the setting block SB2 is located lower than the upper surface of the setting block SB1, and the upper surface of the setting block SB2 is spaced below the lower edge 13 of the glass sheet 1 (see the upper view of Figure 12). When the heat of a fire causes the rubber setting block SB1 to melt and deform (the deformed state is shown as SB1' in the lower diagram of Figure 12) or disappear, the glass plate 1 drops downward, and at this time the lower edge 13 of the glass plate 1 is supported on the upper surface of the steel setting block SB2 (see the conceptual diagram in the lower diagram of Figure 12).

[0056] When the lower end portion of the glass plate 1 is received in the groove portion, the lower edge 13 of the glass plate 1 and the bottom surface of the groove portion (formed from the second upper surface 213) are spaced apart except for the portions that abut against the setting blocks SB1 and SB2, and a thermally expandable fire-resistant member 9 is provided on the bottom surface of the groove portion, so that the thermally expandable fire-resistant member 9 expands due to the heat in the event of a fire, thereby sealing the gap between the lower end portion of the glass plate 1 and the groove portion.

[0057] [D-6] Fixing the side edge of the glass plate to the recess formed by the vertical frame and the edge 7, the ridge 6 provided on the vertical frame 22 is fixed to the bottom surface 2242 of the recess so that the first visible surface 60 faces the first visible surface 2240 of the recess of the vertical frame 22 at a distance. The first and second visible surfaces 222 and 223 of the vertical frame 22 are substantially flush with the visible surface 62 of the ridge 6, and one side edge of the glass plate 1 is received in a groove (recess) between the first visible surface 60 of the ridge 6 and the first visible surface 2240 of the recess. With one side edge of the glass plate 1 received in the groove, a backup material 7 and a sealing material 8 are filled in the gap between the side edge of the first surface 10 of the glass plate 1 and the first visible surface 2240 of the recess, and in the gap between the side edge of the second surface 11 of the glass plate 1 and the first visible surface 60 of the ridge 6.

[0058] The projected edge 631 of the support member 63 fixed to the ridge 6 is positioned in contact with or close to the bottom surface of the groove (formed by the bottom surface 2242 of the recess) so as to cover the bottom surface, and a thermally expandable fire-resistant member 9 is provided along the entire length (length along the height direction of the glass plate 1) of the projected edge 631. When one side edge of the glass plate 1 is received in the groove, the right edge 14 of the glass plate 1 faces, but is spaced from, the thermally expandable fire-resistant member 9 provided on the bottom surface of the groove, i.e., the projected edge 631 of the support member 63 fixed to the ridge 6. The thermally expandable fire-resistant member 9 foams due to heat during a fire, closing the gap between the side edge of the glass plate 1 and the groove. The above description of the configuration of the ridge 6 provided on the vertical frame 22 can be applied to the configuration of the ridge 6 provided on the vertical frame 23.

[0059] [D-7] Fixing structure of the batten The mounting structure or fixing structure of the flange 6 will now be described. Insertion holes for screws 16 are formed in the second lower surface 203 of the upper frame 20, the second upper surface 213 of the lower frame 21, and the bottom surface 2242 of the recess in the vertical frame 22, in areas adjacent to the areas forming the bottom surfaces of the grooves. A backup plate 18 (in one embodiment, a long member extending in the length direction of the lower frame 21) is fixed (welded) to the back surfaces of the second lower surface 203, the second upper surface 213, and the bottom surface 2242, at least at a position outside the insertion holes. The backup plate 18 has female threads formed in correspondence with the screws 16, and the screws 16 that fix the flange 6 are fixed to the backup plate 18.

[0060] [E] Modified ridge Based on the flange 3 of the first embodiment and the flange 6 of the second embodiment, flanges having a thickness of 3 mm or more at the portion that presses the glass plate 1 have been disclosed, but other aspects of such flanges are exemplified in Figures 11 and 19.

[0061] As shown in FIG. 11 , when two components are combined to form a ridge, various shapes of the components and combination patterns are possible. For example, a first component 4 having a U-shape in cross section may be combined with a plate-like second component 5′, a first component 4 having a U-shape in cross section with a second component 5 having an L-shape in cross section, or a first component 4 having a U-shape in cross section with a second component 5″ having a U-shape in cross section. A first component 4′ having an L-shape in cross section may be combined with a plate-like second component 5′, a first component 4′ having an L-shape in cross section with a second component 5 having an L-shape in cross section, or a first component 4′ having an L-shape in cross section with a second component 5″ having a U-shape in cross section. Those skilled in the art will understand that various variations are possible regarding the posture and orientation of the first components 4, 4′ and the second components 5, 5′, 5″ when combined. The setting block SB2 is fixed to a facing surface that forms one wall of the groove that receives the glass plate 1, but it will be understood by those skilled in the art that it may also be fixed to the second member 5, 5', 5'' or the first member 4 depending on the manner of combination.

[0062] The configuration of the ledge formed from a single member is not limited to a U-shaped cross section. As shown in Figure 11, it may be, for example, a pike-shaped ledge 6' or a block-shaped ledge 6'' with a square cross section. The setting block SB2 is fixed to a facing surface that forms one wall of the groove that receives the glass plate 1.

[0063] Figure 11 shows a batten (equipped with a setting block SB2) attached to the lower frame 21, but it will be understood by those skilled in the art that by replacing the setting block SB2 with support members 52, 63 equipped with thermally expandable fire-resistant members, it is possible to construct battens attached to the upper frame 20 and vertical frames 22, 23.

[0064] Figure 19 shows another modified example of a flange. In Figure 19, the side to which flange 6A is attached is referred to as the first side. flange 6A is made of a plate of a predetermined thickness (e.g., 3 mm). In the upper figure, lower frame 21A consists of first facing surface 210 on the first side, second facing surface 211 on the second side, first upper surface 212' on the first side, and a convex portion on the second side, and the convex portion consists of facing surface 213' facing the first side, an upper portion of second facing surface 211, and upper surface 214'. The flange 6A consists of a first part (lower part) fixed to the first visible surface 210 of the lower frame 21A, and a second part (upper part) rising vertically above the first upper surface 212' of the lower frame 21A, and a groove (recess) that receives the lower end portion of the glass plate 1 is formed from the second part of the flange 6A, the visible surface 213', and the first upper surface 212', and the lower edge 13 of the glass plate 1 is supported on a setting block SB1 placed on the first upper surface 212'.

[0065] In the lower figure, the lower frame 21B has a first visible surface 210 on the first side, a second visible surface 211 on the second side, a first upper surface 215 on the first side, a second upper surface 216 on the second side that is positioned higher than the first upper surface 215, an intermediate upper surface 217 that is positioned between the first upper surface 215 and the second upper surface 216 and is positioned higher than the first upper surface 215 and lower than the second upper surface 216, a first upper visible surface 218 that connects the first upper surface 215 and the intermediate upper surface 217, and a second upper visible surface 219 that connects the intermediate upper surface 217 and the second upper surface 216. The flange 6A consists of a first portion (lower portion) fixed to the first upper visible surface 218 of the lower frame 21B and a second portion (upper portion) rising vertically above the middle upper surface of the lower frame 21B, and a groove (recess) for receiving the lower end portion of the glass plate 1 is formed in the second portion of the flange 6A, the second upper visible surface 219, and the middle upper surface 217, and the lower edge 13 of the glass plate 1 is supported on a setting block SB1 placed on the middle upper surface 217. It will be understood by those skilled in the art that a setting block SB2 can be attached to the flange 6A in the upper and lower views of Figure 19.

[0066] The batten fixing structure shown in Figure 19 is a simple configuration that only requires the attachment of a plate-shaped batten 6A, resulting in a clean appearance. The batten 6A is also easy to install. While Figure 19 describes the batten 6A being attached to the lower frame 21A, those skilled in the art will understand that a similar batten installation structure can also be applied to the upper frame and vertical frame, and that a support member equipped with a thermally expandable fire-resistant member can be attached to the batten 6A.

[0067] [F] Mounting structure and installation method for thermal expansion fire-resistant components in building fixtures In fire-resistant fittings, thermally expandable fire-resistant members are provided facing gaps formed between multiple elements, and the heat generated during a fire causes the thermally expandable fire-resistant members to foam and seal the gaps. However, depending on the shape of the elements and the relative positions of the elements, it may be difficult to directly attach the thermally expandable fire-resistant members to the desired surfaces. Referring to FIG. 20 , a mounting structure and installation method for thermally expandable fire-resistant members that can improve the ease of installation of the thermally expandable fire-resistant members will be described. The mounting structure for thermally expandable fire-resistant members shown in FIG. 20 includes a first element α having a surface α1 facing a space S intended to be blocked by the thermally expandable fire-resistant member during a fire, and a second element β that is provided near (e.g., adjacent to) the first element α and has a surface β1 adjacent to the space S, but is not located within the space S. The fixed portion to which the second element β is attached is not limited and may be a portion of the first element α or another element different from the first element α.

[0068] A plate-shaped third element γ extending along the surface α1 of the first element α is protruded from the second element β, and the back surface of the third element γ is in contact with or close to the surface α1 of the first element α, and a thermally expandable refractory member 9 is provided on the surface of the third element γ facing the space S. Note that although Figure 20 shows a cross-sectional view, the surface α1 of the first element α, the third element γ, and the thermally expandable refractory member 9 extend in a predetermined direction.

[0069] In this thermal expansion fire-resistant member mounting structure, a third element γ is fixed to the second element β in advance (the third element γ is fixed to the second element β at a position that will extend so as to be close to or abut the surface α1 when the second element β is placed adjacent to the first element α), and a thermal expansion fire-resistant member 9 is provided on the surface of the third element γ. By mounting the second element β, to which the third element γ with the thermal expansion fire-resistant member 9 fixed, adjacent to the first element α, the third element γ with the thermal expansion fire-resistant member 9 on its surface is simultaneously positioned so as to overlap the surface α1, and the thermal expansion fire-resistant member 9 faces the space S. In other words, rather than directly mounting a thermal expansion fire-resistant member on the surface α1 of the first element α, the second element β with the third element γ is provided, so that the thermal expansion fire-resistant member 9 on the surface of the third element γ, which is positioned to cover (at least partially) the surface α1, faces the space S.

[0070] While FIGS. 1 to 7 show the support structure for a glass pane 1 in a fixed window, FIGS. 16 to 18 will be used to explain the support structure for a glass pane 1 in a door. As shown in FIG. 16, a door body 19 includes a vertical rectangular door frame consisting of an upper frame 190, a lower frame 191, a leading edge vertical frame 192, and a trailing edge vertical frame 193. A four-sided frame (composed of an upper frame 20′, a lower frame 21′, and left and right vertical frames 22′, 23′) is formed along the inside of the door frame, and the glass pane 1 is supported by a shim 3 (first member 4, second member 5). In the illustrated embodiment, the door frame and the four-sided frame are formed using the same components, and the frame is formed from the door frame. While FIGS. 17 and 18 show the shim 3 according to the first embodiment, it will be understood by those skilled in the art that the shim 6 according to the second embodiment may also be used.

[0071] FIG. 17 shows the support structure for the glass plate 1 in the lower frame 21'. The lower frame 21' includes a protrusion formed on the upper end surface 1910 of the lower frame 191, closer to the first side. A flange 3 is attached to the upper end surface 1910 of the lower frame 191, spaced apart from the protrusion, and a groove (recess) is formed between the protrusion and the flange 3 to receive the lower end of the glass plate 1. Two rubber setting blocks SB1 are placed on the bottom of the groove, spaced apart in the width direction of the glass plate 1, and the lower edge 13 of the glass plate 1 is supported by the setting blocks SB1. Two steel setting blocks SB2 are fixed to the flange 3, spaced apart in the width direction of the glass plate 1, and the setting blocks SB2 are positioned adjacent to the setting blocks SB1 and in contact with or close to the bottom of the groove. Setting block SB2 is shorter than setting block SB1, and under normal circumstances (when the glass plate 1 is supported by setting block SB1), there is a gap between setting block SB2 and the lower edge 13 of the glass plate 1. For details about the ledge 3 (first member 4 and second member 5) attached to the lower frame 21', the descriptions in "[C-2] ledge attached to the lower frame" and "[C-5] Fixing the lower end of the glass plate to the recess formed by the lower frame and ledge" can be used.

[0072] FIG. 18 shows the support structure for the glass plate in the vertical frame 22′. The vertical frame 22′ includes two protrusions 220′, 221′ formed on the first and second sides of the projection of the vertical stile 192, respectively, with a recess formed between the two protrusions 220′, 221′. A flange 3 is attached to the second half of this recess, adjacent to the protrusion 221′ on the second side. A groove (recess) that receives the side edge of the glass plate 1 is formed between the protrusion 220′ on the first side and the flange 3. An extension 520 of the support member 52 extends from the flange 3 and abuts or is adjacent to the bottom surface 222′ of the groove, overlapping the bottom surface 222′. The thermally expandable fire-resistant member 9 attached to the extension 520 faces the right edge 14 of the glass plate 1. For details of the battens 3 (first member 4 and second member 5) attached to the vertical frame 22', the following descriptions may be used: "[C-3] Battens attached to the upper frame and vertical frame" and "[C-6] Fixing the side edges of the glass sheet to the recess formed by the vertical frame and battens." The support structure for the glass sheet 1 in the vertical frame 22' has been described above, but the support structure for the glass sheet 1 in the upper frame 20' and vertical frame 23' is substantially the same as the support structure for the glass sheet 1 in the vertical frame 22', and the following descriptions may be used: "[C-3] Battens attached to the upper frame and vertical frame," "[C-4] Fixing the upper edges of the glass sheet to the recess formed by the upper frame and battens," and "[C-6] Fixing the side edges of the glass sheet to the recess formed by the vertical frame and battens." [Explanation of symbols]

[0073] 1. Glass plate (glass) 12 Upper edge (periphery) 13 Lower edge (periphery) 14 Right edge (periphery) 15 Left edge (periphery) 2 frame 20 Upper Frame 203 Second bottom surface (frame part, bottom surface of groove part) 2041 Second visible surface of the convex part (part of the frame that forms the groove part) 21 Bottom frame 213 Second upper surface (frame part, bottom surface of groove part) 2141 Second visible surface of the convex part (part of the frame that forms the groove part) 22 Vertical Frame 2240 First visible surface of the recess (part of the frame that forms the groove, one visible surface) 2242 Bottom surface of recess (frame part, bottom surface of groove part) 23 Vertical Frame 2340 First visible surface of the recess (part of the frame that forms the groove, one visible surface) 2342 Bottom surface of recess (frame part, bottom surface of groove part) 3. Edge 4 First member of batten 40 First facing surface (edge part) 400 notches 41 2nd page 42 Prospect 5 Second member of batten 50. Edge (edge part) 51 Prospect 52 Support member 520 Extension part (plate-shaped part) 6. Edge 60 First facing surface (edge part) 61 2nd page 62 Prospect 63 Support member 631 Prospective edge (plate-shaped part) 9. Thermal expansion fire-resistant materials SB1 Setting Block (First Setting Block) SB2 Setting Block (Second Setting Block) α first element β 2nd element γ third element

Claims

1. In a fire-resistant fitting in which the peripheral portion of the glass is inserted into a recess formed by a frame body and a batten, The pressing edge has a plate-like portion protruding therefrom so as to be positioned on the bottom surface of the recess, The plate-shaped portion includes a first surface away from the bottom surface and a second surface facing the bottom surface, a heat-expanding fire-resistant member is provided only on the first surface of the plate-shaped portion so as to face the periphery of the glass, and the second surface of the plate-shaped portion is in contact with the bottom surface; Fireproof fittings.

2. The pressing edge comprises a first member having a U-shaped cross section from a first visible surface on the side closer to the recess, a second visible surface on the side farther from the recess, and a visible surface; a second member including an L-shaped section in cross section having a visible side and a visible side, and a plate-shaped support member fixed to the visible side, the support member having an extension portion that protrudes beyond the first visible surface; When the visible edge of the second member is in contact with the inner surface of the first visible surface of the first member, the extension portion forms the plate-like portion. The fire-resistant fixture according to claim 1.

3. In the first member, the distance from the projected surface to the tip of the first projected surface is slightly shorter than the distance from the tip of the second projected surface to the projected surface, and when the pressing edge is assembled from the first member and the second member, the tip of the first projected surface abuts against the support member. The fire-resistant fixture according to claim 2.

4. a ledge having a protruding plate-like portion, the ledge having a thermal expansion fire-resistant member provided only on a first surface of the ledge; The flaps are attached to the frame, and a recess for receiving the peripheral portion of the glass is formed by the flaps and the frame, and at the same time, the second surface of the plate-shaped portion is abutted against the bottom surface of the recess, thereby placing the thermally expandable fire-resistant member so as to face the peripheral portion of the glass. A method for installing thermally expansive fire-resistant members in fire-resistant building fixtures.

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