Glass support structure and method for fire-resistant building fixtures

Abstract

To offer support structure of a glass in a housing part workability and fire performance of which were improved.SOLUTION: The support structure of a glass consists of a lower frame 21, a first setting block SB1 which is mounted by a bottom of recess (a second top surface 213) formed from holding wood 3, 6, and comes into contact with a bottom end 13 of a glass plate 1 and supports the glass, and the second setting block SB2 which is protruded to the holding wood 3, 6 and placed in the bottom of the recess, and the second setting block SB2 is a low back than the first setting block SB1 and is usually estranged from the bottom end 13 of the glass plate 1.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a support structure and method for glass in fire-resistant fittings, and more particularly to a support structure and method for glass in fittings that can be used as fire-resistant equipment. [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 used as fire protection equipment. In such cases, in addition to the fire protection performance of the glass panes that form the window, the fire protection performance of the glass support is also important.

[0003] In metal fittings with glass, the peripheral portion of the glass is received and fixed in a recess formed by the frame and the batten, and the lower end of the glass is supported by a setting block placed on the bottom surface of the recess while being received in the recess formed by the lower frame and the batten. Generally, the setting block is made of rubber (selected from materials with excellent weather resistance, durability, and impact resistance). By placing the lower end of the glass on the upper surface of the setting block with multiple setting blocks placed at predetermined positions on the bottom surface of the recess, the position is fixed by the weight of the glass and friction without adhesive. When exposed to heat during a fire, the rubber setting block melts and deforms or disappears, which may cause the glass to sag. Furthermore, if the glass sags, a gap will be created between the frame and the glass at the upper part of the window, and the window will no longer function as a fire window.

[0004] To address this issue, as disclosed in Patent Document 1, it is conceivable to provide a movement prevention block as a blocking member for preventing the glass from moving when the setting block supporting the glass is lost during a fire, but since the upper surface of the movement prevention block is normally not in contact with the lower end of the glass, the movement prevention block, unlike a resin setting block, needs to be fixed in the recess so as not to move. However, when installing the glass on site, if the work of attaching the flange to the frame to form a recess, receiving and fixing the peripheral part of the glass in the recess, as well as the work of positioning and fixing the movement prevention block in the recess, which is a relatively narrow space, is required, the number of steps in the glass installation work on site increases, reducing work efficiency. [Patent Document 1] Patent Publication No. 2010-248836 DISCLOSURE OF THEINVENTION [Problem to be solved by the invention]

[0005] The present invention aims to provide a structure and method for supporting glass in building materials that has improved workability and fire resistance. [Means for solving the problem]

[0006] The technical means adopted in the present invention are: A first setting block is placed on a bottom surface of a recess formed by the lower frame and the ledge and abuts against a lower edge of the glass to support the glass; a second setting block protruding from the ledge and disposed on the bottom surface of the recess; The second setting block is shorter than the first setting block and is normally spaced apart from the lower edge of the glass. This is the support structure for glass in fire-resistant building materials. What is meant by "low height" is that the height position of the upper surface of the second setting block is lower than the height position of the upper surface of the first setting block. The lower surface of the second setting block may abut or be in contact with the bottom surface of the recess, or may be close to it but not in contact with it, but even if it abuts or is in contact with the bottom surface, it is not fixed to the bottom surface. Examples of fire-resistant fittings include, but are not limited to, fixed windows and doors with glass window sections.

[0007] In one embodiment, the second setting block has a higher melting point than the first setting block; When the glass moves downward in the event of a fire, the second setting block abuts against the lower edge of the glass to support the glass. In one embodiment, the first setting block is non-metallic (eg, rubber, plastic) and the second setting block is metallic (eg, steel).

[0008] Other technical means adopted in the present invention are: By attaching the ridge to the lower frame, a recess is formed between the bottom surface and the visible surface formed by the portion of the ridge and the visible surface formed by the portion of the ridge to receive the lower end portion of the glass; placing a first setting block on a bottom surface formed by the lower frame portion; A flange having a second setting block protruding from a predetermined position in the length direction is attached to the lower frame to form a recess for receiving the lower end portion of the glass, and at the same time, the second setting block is installed at a predetermined position on the bottom surface of the recess. the first setting block is taller than the second setting block, and a lower edge of the glass is placed on an upper surface of the first setting block for support; A method of supporting glass in a fire rated fitting, comprising: Further technical means adopted in the present invention are: A brace is prepared with setting blocks protruding from the brace at predetermined locations in the length direction. The ridge is attached to the lower frame, and the ridge and the lower frame form a recess for receiving the lower end of the glass, and at the same time, the setting block is installed at a predetermined position on the bottom surface of the recess. This is a method for installing setting blocks in fire-resistant building materials. In one embodiment, the setting block is a fire setting block. Effect of the Invention

[0009] The present invention relates to a glass support structure for fire-resistant building fixtures that includes a second setting block for fire prevention in addition to a first setting block that normally supports the lower end of the glass.By using a flange with the second setting block protruding from a predetermined location in the longitudinal direction, the second setting block can be installed simply by attaching the flange to the bottom frame, without the need to position and fix the second setting block.Even though two types of setting blocks are installed, the glass installation work is easy. [Brief description 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. [Diagram 2] FIG. 2 is a vertical cross-sectional view of a fixed window having a ledge in accordance with the first embodiment. [Diagram 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 installed. [Figure 4] FIG. 11 is a vertical cross-sectional view of a fixed window having a ledge in accordance with a second embodiment. [Diagram 5] FIG. 2 is a cross-sectional view of a fixed window with a ledge in accordance with the first embodiment. [Figure 6] In the left-hand portion of FIG. 5, the glass pane and the first part of the ridge have been removed and the second part of the ridge has been installed. [Figure 7] FIG. 11 is a diagram showing the left side portion of a cross-sectional view of a fixed window having a ledge according to a second embodiment. [Figure 8] 4 is a diagram showing a first member of the flange that is attached to the lower frame in the flange according to the first embodiment. FIG. [Figure 9] 6 is a view showing a second member of the flange that is attached to the lower frame in the flange according to the first embodiment. FIG. [Figure 10] 13 is a diagram showing the batten attached to the lower frame in the batten according to the second embodiment. FIG. [Figure 11] A diagram showing a modified example of a batten attached to the lower frame. [Figure 12] 5A to 5C are diagrams illustrating the operation of the setting block according to the embodiment. [Figure 13] 4 is a diagram showing the first component of the batten in the first embodiment, which is attached to the upper frame and vertical frame. FIG. [Figure 14] 6 is a diagram showing the second member of the batten in the first embodiment, which is attached to the upper frame and vertical frame. FIG. [Figure 15] A diagram showing the batten attached to the upper frame and vertical frame in the batten relating to the second embodiment. [Figure 16] FIG. 11 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 panel in the vertical frame. [Figure 19] FIG. 13 is a diagram showing another modified example of the ridge. [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 PREFERRED EMBODIMENTS

[0011] [A] Overall configuration of FIX window 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 formed in the wall W, forming a window portion in the wall W. The fixed window according to this embodiment can be used as a fire prevention facility.

[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 ridge 3 (see Figures 2 and 5) or a ridge 6 (see Figures 4 and 7). The frame 2, ridge 3 (first member 4, second member 5), and ridge 6 are made of a steel plate (e.g., steel or stainless steel) bent into a specified shape.

[0013] The glass plate 1 of the fixed window is a rectangular plate of a specified thickness, and has a first surface 10 and a second surface 11 which 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 specified fire resistance, such as wire glass, heat-resistant tempered glass, heat-resistant crystallized glass, etc. The glass plate 1 may be a single layer or a double layer glass.

[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 the battens 6 are long 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 be described. The upper frame 20, which is a long member extending horizontally, comprises a first sight surface 200 on the first side, a second sight surface 201 on the second side, and a bottom surface portion connecting the bottom ends of the first sight surface 200 and the second sight surface 201, as shown in Figures 2 to 4. The bottom surface portion comprises a first bottom surface 202 on the first sight surface 200 side, a second bottom surface 203 on the second sight surface 201 side, and a protrusion 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-rear direction (projection direction) is larger than the dimension of the first lower surface 202 in the front-rear direction (projection direction), and the protrusion 204 is located at a position biased toward the first side with respect to the center part in the front-rear direction (projection direction) of the lower surface part. The protrusion 204 is composed 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., the flange 3 or the flange 6, is fixed to the second lower surface 203 of the upper frame 20, located on the second side of the protruding portion 204. A groove (recess) formed between the protruding portion 204 and the flange 3 or the flange 6 is adapted to receive an upper end portion (peripheral portion) of the glass plate 1.

[0018] [B-2] Bottom frame The lower frame 21 of the frame body 2 will be described. The lower frame 21, which is a long member extending horizontally, comprises 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, as shown in Figures 2 to 4. The upper surface portion comprises 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 protrusion 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 (projection direction) is greater than the dimension of first upper surface 212 in the front-rear direction (projection direction), and protrusion 214 is located at a position biased toward the first side with respect to the central part in the front-rear direction (projection direction) of the upper surface portion. 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., the ridge 3 or the ridge 6, is fixed to the second upper surface 213 of the lower frame 21, located on the second side of the protrusion 204. A groove (recess) formed between the protrusion 204 and the ridge 3 or the ridge 6 is adapted to receive a 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 be described. As shown in Fig. 5 and Fig. 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, and 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 Fig. 5) located between the first visible surface 222 and the second visible surface 223.

[0022] In this embodiment, the prospective dimension of the second prospective surface 223 is smaller than the prospective dimension of the first prospective surface 222, and the recess 224 is located at a position biased toward the second side in the prospective direction of the prospective surface portion. The recess 224 is composed of a first prospective surface 2240 on the first side, a second prospective surface 2241 on the second side, and a bottom surface 2242 extending in the prospective direction.

[0023] A glass retaining member, i.e., the flange 3 or the 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 end portion (peripheral portion) of the glass plate 1 is received in the groove.

[0024] 5, the other vertical frame 23, which is a vertically extending elongated member, is composed of 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, and the visible surface portion is composed of 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 is composed of 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 prospective dimension of the second prospective surface 233 is smaller than the prospective dimension of the first prospective surface 232, and the recess is located at a position biased toward the second side in the prospective direction of the prospective surface portion.

[0026] A glass retaining member, i.e., the ridge 3 or the ridge 6, is fixed to the recess of the vertical frame 23 adjacent to a second visible surface 2341 of the recess. A groove (recess) is formed in the recess by the ridge 3 or the ridge 6 provided in the recess, and the side end portion (peripheral portion) of the glass plate 1 is received 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 batten used to support a glass plate 1 of a fixed window will be described with reference to Figs. 2, 3, 5, 6, 8, 9, 13, and 14. The batten 3 according to the first embodiment is formed by combining a first member 4 and a second member 5. The first member 4 is a long member extending along the upper frame 20, the lower frame 21, and the left and right vertical frames 22 and 23 of the frame body 2. The first member 4 has a U-shaped cross section from the first visible surface 40, the second visible surface 41, and the expected surface 42. The second member 5 is a long member extending along the upper frame 20, the lower frame 21, and the left and right vertical frames 22 and 23 of the frame body 2. The second member 5 has an L-shaped cross section from the expected edge 50 and the expected 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 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 the second member 5 according to this embodiment have the same length dimension.

[0028] In the edge 3 composed of a first member 4 and a 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 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 edge 3 is, for example, 3 mm or more. In a FIX window employing the ridge 3 according to the first embodiment, a groove (recess) for receiving and supporting the end of the glass plate 1 is formed by a portion of the frame facing 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 a portion of the ridge facing the end 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 ridge 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 forming the ridge 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 it should be noted 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 the vertical frames 22, 23, as described below.

[0029] [C-2] Edge that can be attached to the bottom frame 8, the first member 4 of the pressing edge 3 attached to the bottom frame 21 has a U-shape in 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 an interval 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 Fig. 9, the second member 5 of the pressing edge 3 attached to the lower frame 21 has an L-shaped cross section formed by a visible edge 50 and a visible edge 51, and two setting blocks SB2 are fixed (welded) to the base end side 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 side of the visible edge 50. The bottom surface of the visible edge 51 and the bottom surface of the setting block 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 the two setting blocks SB2 is approximately the same as the distance between the two notches 400.

[0031] In this embodiment, in the flange 3 attached to the bottom frame 21, when the flange 3 is assembled from the first member 4 and the second member 5, the two setting blocks SB2 fixed to the second member 5 are configured to 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 end of the first visible surface 40 (excluding the notches 400) and the second visible surface 41 of the first member 4.

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

[0033] When the pressing edge 3 is fixed to the lower frame 21, the first visible surface 40 (excluding the cutout 400) and the lower end of the second visible surface 41 of the first member 4, and the lower surface of the projected 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 can be attached to the batten As shown in Fig. 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 Fig. 14, a plate-shaped support member 52 is fixed (welded) to the front edge 51 of the second member 5 of the batten 3 attached to the upper frame 20 and the vertical frames 22 and 23. The support member 52 is a long member extending over the entire length of the second member 5, and has an extension portion 520 that protrudes from the front edge 50. A thermal expansion fire-resistant member 9 is provided over the entire length of the extension portion 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 thermal expansion fire-resistant member 9 is provided on the extension portion 520.

[0036] The second member 5 of the pressing edge 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 the screws 16 that fix 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 projection surface 42, with the edge of the second projection 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 projection surface 40 abutting or close to the support member 52, and the head of the screw 16 fits flush into the hole 420 with the projection surface 42.

[0037] When the pressing 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 Fig. 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 the second visible surface 2041 of the protruding portion 204 of the upper frame 20 at a distance, and the visible edge 50 of the second member 5 fixed to the second lower surface 203 via the visible edge 51 abuts against the back or inner surface of the first visible surface 40. The lower surface 2042 of the protruding portion 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 protruding portion 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 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 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 located in contact with or close to the bottom surface of the groove (part of the second lower surface 203) so as to cover the bottom surface, and a thermal expansion fireproof member 9 is provided over the entire length (length along the width direction of the glass plate 1) of the extension 520. 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 the bottom surface of the groove, i.e., the thermal expansion fireproof member 9 provided on the extension 520 of the support member 52 fixed to the second member 5, at a distance. The thermal expansion fireproof member 9 foams due to heat during a fire and closes 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 pressing edge 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 the second visible surface 2141 of the protruding portion 214 of the lower frame 21 at a distance, and the visible edge 50 of the second member 5 fixed to the second upper surface 213 via the visible edge 51 abuts against the back or inner surface of the first visible surface 40. The upper surface 2142 of the protruding portion 214 of the lower frame 21 and the visible surface 42 of the first member 4 of the pressing edge 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 pressing edge 3 and the second visible surface 2141 of the protruding portion 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 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 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 the setting block SB1 placed on the bottom surface of the groove (formed from 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, and 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 diagram of FIG. 12). If 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 in the lower part of Figure 12) or disappear, the glass plate 1 will drop. At this time, the lower edge 13 of the glass plate 1 will be supported by the upper surface of the steel setting block SB2 (see the lower part 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 separated from each other except for the portions abutting 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). The thermally expandable fire-resistant member 9 foams due to the heat during 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 edge As shown in FIG. 5, the batten 3 provided on the vertical frame 22 is fixed to the bottom surface 2242 of the recess 224 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 via the visible edge 51 abuts on the back or inner surface of the first visible surface 40. The first visible surface 222 and the second visible surface 223 of the vertical frame 22 and the visible surface 42 of the first member 4 of the batten 3 are approximately flush with each other. One side 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 batten 3 and the first visible surface 2240 of the recess 224. With one side end portion of the glass plate 1 received in the groove portion, the gap between the side end portion 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 end portion 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] The extension 520 of the support member 52 fixed to the second member 5 of the pressing edge 3 is located in contact with or close to the bottom surface of the groove (formed from the bottom surface 2242 of the recess 224) so ​​as to cover the bottom surface, and the thermal expansion fireproof member 9 is provided over the entire length (length along the height direction of the glass plate 1) of the extension 520. When one side end portion of the glass plate 1 is received in the groove, the right edge 14 of the glass plate 1 faces the bottom surface of the groove, i.e., the thermal expansion fireproof member 9 provided on the extension 520 of the support member 52 fixed to the second member 5, at a distance. The thermal expansion fireproof member 9 foams due to heat during a fire and closes the gap between the side end portion 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 via the visible edge 51 abuts against the back or inner surface of the first visible surface 40. The first visible surface 232 and the second visible surface 233 of the vertical frame 23 and the visible surface 42 of the first member 4 of the ridge 3 are approximately flush with each other. The other side end portion of the glass plate 1 is received in the 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 end portion of the glass plate 1 received in the groove portion, the gap between the side end 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 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.

[0046] The extension 520 of the support member 52 fixed to the second member 5 of the pressing edge 3 is located 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 the thermal expansion fireproof member 9 is provided over the entire length (length along the height direction of the glass plate 1) of the extension 520. When one side end portion of the glass plate 1 is received in the groove, the left edge 15 of the glass plate 1 faces the bottom surface of the groove, i.e., the thermal expansion fireproof member 9 provided on the extension 520 of the support member 52 fixed to the second member 5, at a distance. The thermal expansion fireproof member 9 foams due to heat during a fire and closes the gap between the side end portion of the glass plate 1 and the groove.

[0047] [C-7] Fixing structure of the ridge The mounting structure or fixing structure of the ridge 3 will be described. 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 the 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, 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 located outside these insertion holes, and the backup plate 18 is formed with a female screw to which the screw 16 is fixed and a female screw to which the screw 17 is fixed, corresponding to these insertion holes, and the screw 16 that fixes the first member 4 and the screw 17 that fixes the second member 5 are each fixed to the backup plate 18. Note that the screw 16 may be fixed to the second member 5.

[0048] [D] Fixing structure of batten in FIX window (second embodiment) [D-1] Push-in edge (pushing edge 6) according to the second embodiment A second embodiment of the batten used to support the glass plate 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 and 23, and the batten 6 has a U-shape in cross section from the first visible surface 60, the second visible surface 61, and the projected surface 62. The batten 6 is fixed to the upper frame 20, the lower frame 21, and the left and right vertical frames 22 and 23 of the frame body 2 by the screw 16 extending through the hole 620 formed in the projected surface 62 with the edge of the first visible surface 60 and the edge of the second visible surface 61 abutting against the upper frame 20, the lower frame 21, and the left and right vertical frames 22 and 23 of the frame body 2, and the head of the screw 16 is fitted flush with the hole.

[0049] The thickness of the steel plate forming the edge 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 edge 6 is, for example, 3 mm. In a FIX window that employs the ridge 6 of the second embodiment, a groove (recess) in which the end of the glass plate 1 is received and supported is formed by the part of the frame facing 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 ridge 6 facing the end of the second surface 11 of the glass plate 1 (the first visible surface 60), and the thickness of the ridge portion is 3 mm or more (for example, 3 mm). By increasing the thickness of the ridge 6, 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 6 in the second embodiment has such a fireproof structure, but it should be noted 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 the vertical frames 22, 23, as described below.

[0050] [D-2] Edge to be attached to the bottom frame As shown in Fig. 10, the ridge 6 attached to the lower frame 21 has a U-shaped cross section with a first visible surface 60, a second visible surface 61, and a visible surface 62, and two setting blocks SB2 are fixed (welded) to the tip side or the lower end side (the side farther from the visible surface 62) of the first visible surface 60 at an interval in the length direction (direction along the width direction of the glass plate 1) of the ridge 6 (only one of the setting blocks SB2 is shown in Fig. 10). The setting block SB2 protrudes from the lower end of the first visible surface 60 in the visible direction (direction perpendicular to the first visible surface 60). The lower surface of the setting block SB2 is flush with the tip (lower 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 from a first visible surface 60, a second visible surface 61, and a visible surface 62, and 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 from a visible edge 630 and a visible edge 631, and 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 tip (lower end) of the first visible surface 60. A thermal expansion fireproof member 9 is provided on the upper surface (front surface) of the visible edge 631 of the support member 63 along the length direction (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 convex portion 204 of the upper frame 20 at a distance, and the lower surface 2042 of the convex portion 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 convex portion 204. With the upper end portion of the glass plate 1 received in the groove, the gap between the upper end 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 of the second surface portion 11 of the glass plate 1 and the first visible surface 60 of the ridge 6 are filled with a backup material 7 and a sealing material 8.

[0053] A projected edge 631 of a support member 63 fixed to the flange 6 is located in contact with or close to a 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, at a distance, 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 and closes 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 As shown in Fig. 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 protruding portion 214 of the lower frame 21 at a distance, and the upper surface 2142 of the protruding portion 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 protruding portion 214. With the lower end portion of the glass plate 1 received in the groove, the gap between the lower end of the first surface 10 of the glass plate 1 and the second visible surface 2141 of the protruding portion 214, and 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 are filled with the backup material 7 and the sealing material 8.

[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 the setting block SB1 placed on the bottom surface of the groove (formed from 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, and 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 diagram of FIG. 12). If 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 will drop. At this time, the lower edge 13 of the glass plate 1 will be supported by 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 separated from each other except for the portions abutting the setting blocks SB1 and SB2, and a thermally expandable fire-resistant member 9 is provided on the bottom surface of the groove portion. The thermally expandable fire-resistant member 9 expands due to the heat in the event of a fire, thereby closing 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 As shown in Fig. 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, and the first visible surface 222 and the second visible surface 223 of the vertical frame 22 and the visible surface 62 of the ridge 6 are substantially flush with each other, and one side 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 first visible surface 2240 of the recess. With one side end portion of the glass plate 1 received in the groove, the gap between the side end of the first surface 10 of the glass plate 1 and the first visible surface 2240 of the recess, and the gap between the side end of the second surface 11 of the glass plate 1 and the first visible surface 60 of the ridge 6 are filled with a backup material 7 and a sealing material 8.

[0058] The bottom surface of the groove (formed from the bottom surface 2242 of the recess) is in contact with or close to the projected edge 631 of the support member 63 fixed to the ridge 6 so as to cover the bottom surface, and the thermal expansion fireproof member 9 is provided on the projected edge 631 over the entire length (length along the height direction of the glass plate 1). When one side end portion of the glass plate 1 is received in the groove, the right edge 14 of the glass plate 1 faces the bottom surface of the groove, i.e., the thermal expansion fireproof member 9 provided on the projected edge 631 of the support member 63 fixed to the ridge 6, at a distance. The thermal expansion fireproof member 9 foams due to heat during a fire, and closes the gap between the side end portion of the glass plate 1 and the groove. The above description of the configuration of the ridge 6 provided on the vertical frame 23 can be used for the configuration of the ridge 6 provided on the vertical frame 22.

[0059] [D-7] Fixing structure of the ridge The mounting structure or fixing structure of the flange 6 will be described. Insertion holes for the 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 of the vertical frame 22 at the portions adjacent to the portions forming the bottom surface of the groove. A backup plate 18 (in one embodiment, a long member extending in the length direction of the lower frame 21) is fixed (welded) to at least the back surfaces of the second lower surface 203, the second upper surface 213, and the bottom surface 2242, positioned outside the insertion holes. A female screw is formed in the backup plate 18 corresponding to the screw 16, and the screw 16 that fixes the flange 6 is 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, a flange having a thickness of 3 mm or more at the portion pressing the glass plate 1 has been disclosed, but other aspects of such flanges are shown as examples in Figures 11 and 19.

[0061] As shown in Fig. 11, when forming a ridge by combining two members, there are various shapes of the members and combination modes. For example, a first member 4 having a U-shape in cross section may be combined with a plate-shaped second member 5', a first member 4 having a U-shape in cross section may be combined with a second member 5 having an L-shape in cross section, or a first member 4 having a U-shape in cross section may be combined with a second member 5'' having a U-shape in cross section. A first member 4' having an L-shape in cross section may be combined with a plate-shaped second member 5', a first member 4' having an L-shape in cross section may be combined with a second member 5 having an L-shape in cross section, or a first member 4' having an L-shape in cross section may be combined with a second member 5'' having a U-shape in cross section. It will be understood by those skilled in the art that various variations can be adopted for the posture and orientation of the first members 4, 4' and the second members 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 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 ridge formed from a single member is not limited to a U-shape in cross section. For example, as shown in Fig. 11, it may be a pike-shaped ridge 6' or a block-shaped ridge 6'' having 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 a batten for attachment to the upper frame 20 and vertical frames 22, 23.

[0064] Fig. 19 shows a further modified example of the ridge. In Fig. 19, the side to which the ridge 6A is attached is the first side. The ridge 6A is made of a plate of a predetermined thickness (for example, 3 mm). In the upper figure, the lower frame 21A is made of a first visible surface 210 on the first side, a second visible surface 211 on the second side, a first upper surface 212' on the first side, and a convex portion on the second side, and the convex portion is made of a visible surface 213' facing the first side, an upper portion of the second visible surface 211, and an upper surface 214'. The pressing edge 6A consists of a first part (lower part) fixed to the first visible surface 210 of the bottom frame 21A, and a second part (upper part) rising vertically above the first upper surface 212' of the bottom frame 21A, and a groove (recess) for receiving the lower end portion of the glass plate 1 is formed from the second part of the pressing edge 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 comprises a first sight surface 210 on the first side, a second sight surface 211 on the second side, a first top surface 215 on the first side, a second top surface 216 on the second side located at a higher position than the first top surface 215, an intermediate top surface 217 located between the first top surface 215 and the second top surface 216 and located at a higher position than the first top surface 215 and lower than the second top surface 216, a first upper sight surface 218 connecting the first top surface 215 and the intermediate top surface 217, and a second upper sight surface 219 connecting the intermediate top surface 217 and the second top surface 216. The flange 6A is composed 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 sheet 1 is formed from 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 sheet 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 FIG.

[0066] The batten fixing structure shown in Fig. 19 is a simple structure that only requires the installation of a plate-shaped batten 6A, and provides a neat appearance. The batten 6A can also be easily installed. In Fig. 19, the batten 6A is attached to the lower frame 21A, but 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 provided 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, a thermally expandable fire-resistant member is provided facing a gap formed between a plurality of elements, and the thermally expandable fire-resistant member is foamed by heat during a fire to close the gap. Here, depending on the shape of the elements and the positional relationship between the elements, it may be difficult to directly attach the thermally expandable fire-resistant member to a desired surface. With reference to FIG. 20, a mounting structure and an installation method for a thermally expandable fire-resistant member that can improve the mounting workability of the thermally expandable fire-resistant member will be described. The mounting structure for a thermally expandable fire-resistant member shown in FIG. 20 includes a first element α having a surface portion 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 (for example, adjacent to) the first element α and has a surface portion β1 adjacent to the space S, but is not located within the space S. The fixed portion on which the second element β is provided is not limited, and may be a part of the first element α or another element different from the first element α.

[0068] A plate-like third element γ extending along the surface α1 of the first element α is protruded from the second element β, 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 fireproof member 9 is provided on the front surface of the third element γ facing the space S. Note that, although Fig. 20 shows a cross-sectional view, the surface α1 of the first element α, the third element γ, and the thermally expandable fireproof member 9 extend in a predetermined direction.

[0069] In the mounting structure of the thermal expansion fireproof member, the 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 where it extends so as to be close to or in contact with the surface portion α1 when the second element β is provided adjacent to the first element α), and the thermal expansion fireproof 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 fireproof member 9 provided thereon is fixed adjacent to the first element α, the third element γ with the thermal expansion fireproof member 9 provided on its surface is simultaneously arranged so as to overlap the surface portion α1, so that the thermal expansion fireproof member 9 faces the space S. In other words, by providing the second element β with the third element γ, rather than providing the thermal expansion fireproof member directly on the surface portion α1 of the first element α, the thermal expansion fireproof member 9 provided on the surface of the third element γ positioned to cover (at least partially) the surface portion α1 faces the space S.

[0070] 1 to 7 show the support structure of the glass sheet 1 in a fixed window as a fixture, but with reference to Figs. 16 to 18, the support structure of the glass sheet 1 in a door as a fixture will be described. As shown in Fig. 16, the door body 19 has a vertical rectangular door frame consisting of an upper frame 190, a lower frame 191, a vertical frame on the door front side 192, and a vertical frame on the door rear side 193, and a four-sided frame body (consisting 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 sheet 1 is supported on the frame part via a batten 3 (first member 4, second member 5). In the illustrated embodiment, the members forming the door frame and the members forming the four-sided frame body are the same, and the frame body is formed from the door frame part. In Figs. 17 and 18, the batten 3 according to the first embodiment is adopted, but it will be understood by those skilled in the art that the batten 6 according to the second embodiment may also be adopted.

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

[0072] FIG. 18 shows the support structure of 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 frame 192, respectively, and a recess is formed between the two protrusions 220', 221'. A flange 3 is attached to the second half of the recess adjacent to the protrusion 221' on the second side, and a groove (recess) that receives the side end portion of the glass plate 1 is formed between the protrusion 220' on the first side and the flange 3. From the flange 3, the extension 520 of the support member 52 is positioned so as to abut or be close to the bottom surface 222' of the groove and overlap the bottom surface 222', and the thermal expansion fireproof member 9 provided on 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 descriptions in "[C-3] Battens attached to the upper frame and vertical frame" and "[C-6] Fixing the side end portion of the glass sheet to the recess formed by the vertical frame and battens" can be used. Although the support structure of the glass sheet 1 in the vertical frame 22' has been explained, the support structure of the glass sheet 1 in the upper frame 20' and vertical frame 23' is substantially the same as the support structure of the glass sheet 1 in the vertical frame 22', and the descriptions in "[C-3] Battens attached to the upper frame and vertical frame", "[C-4] Fixing the upper end portion of the glass sheet to the recess formed by the upper frame and battens", and "[C-6] Fixing the side end portion of the glass sheet to the recess formed by the vertical frame and battens" can be used. [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 portion (part of the frame forming the groove portion) 21 Bottom frame 213 Second upper surface (frame part, bottom surface of groove part) 2141 Second visible surface of the convex portion (part of the frame forming the groove portion) 22 Vertical Frame 2240 First visible surface of the recess (part of the frame forming 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 forming 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 surface (edge ​​part) 400 notch 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 surface (edge ​​part) 61 2nd page 62 Prospect 63 Support member 631 Prospect side (plate-shaped part) 9. Thermal expansion fire-resistant materials SB1 Setting Block (First Setting Block) SB2 Setting Block (Second Setting Block) α 1st element β 2nd element γ 3rd element

Claims

1. a first setting block that is placed on a bottom surface of a recess formed by the lower frame and the ledge and that abuts against a lower edge of the glass to support the glass; a second setting block protruding from the ledge and disposed on the bottom surface of the recess; The second setting block is shorter than the first setting block and is normally spaced apart from the lower edge of the glass. Glass support structure in fire-resistant building fixtures.

2. The second setting block has a higher melting point than the first setting block, When the glass moves downward in the event of a fire, the second setting block abuts against the lower edge of the glass to support the glass. A support structure for glass in the fire-retardant building material according to claim 1.

3. By attaching the ridge to the lower frame, a recess is formed between the bottom surface and the visible surface formed by the portion of the ridge and the visible surface formed by the portion of the ridge to receive the lower end portion of the glass; placing a first setting block on a bottom surface formed by the portion of the lower frame; A flange having a second setting block protruding from a predetermined position in the length direction is attached to the lower frame to form a recess for receiving the lower end portion of the glass, and at the same time, the second setting block is installed at a predetermined position on the bottom surface of the recess. the first setting block is taller than the second setting block, and a lower edge of the glass is placed on an upper surface of the first setting block for support; A method of supporting glass in fire-resistant fittings, comprising:

4. A brace is prepared with setting blocks protruding from the brace at predetermined locations in the length direction. The ridge is attached to the lower frame, and the ridge and the lower frame form a recess for receiving the lower end of the glass, and at the same time, the setting block is installed at a predetermined position on the bottom surface of the recess. How to install setting blocks in fire-resistant building fixtures.

Images