Support Structure of Glass in a Construction Tool

Abstract

To provide a glass support structure for a fitting with improved fire protection performance.SOLUTION: A groove section for receiving and supporting an end section of a glass plate 1 is made up of a portion of a frame body facing an end section of a first surface section 10 of the glass plate 1 (a second aspect face 2041 of a convex section 204 of an upper frame 20, a second aspect face 2141 of a convex section 214 of a lower frame 21, a first aspect face 2240 of a concave section 224 of a vertical frame 22, a first aspect face 2340 of a concave section 234 of a vertical frame 23) and a portion of a batten facing an end section of a second surface section 11 of the glass plate 1 (a first apparent surface 40 of a first member 4 of a batten 3 + an apparent side 50 of a second member 5, and a first apparent surface 60 of a batten 6), and thicknesses (t1 + t2, t4) of the battens are larger than a plate thickness (t3) of the frame body.SELECTED DRAWING: Figure 6

Description

Technical Field

[0001] The present invention relates to a glass support structure in fittings, and more particularly to a glass support structure in fittings that can be used as fire protection equipment.

Background Art

[0002] Windows that are fitted into a building body (such as a wall) and cannot be opened or closed are known as FIX windows or fixed windows. There are cases where such fixed windows are desired to be used as fire protection equipment. In this case, in addition to the fire resistance performance of the glass plate forming the window, the fire resistance performance at the glass support portion is important.

[0003] Patent Document 1 discloses a window frame structure that can fix a glass plate without allowing it to slip out even at high temperatures, has excellent design properties, and is easy to remove mounting screws. The inventors of the present invention aimed to improve the fire resistance performance of the glass support structure in fittings (fixed windows and doors) by focusing on the pressing edge that is a pressing member for the glass plate.

Patent Document 1

Disclosure of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a glass support structure in a fitting with improved fire resistance performance.

Means for Solving the Problems

[0005] The technical means adopted by the present invention is In a fitting in which a glass plate is supported via a pressing edge by a frame body in a surrounding shape, a groove portion is formed from a portion of the frame body facing the end of the first surface portion of the glass plate and a portion of the pressing edge facing the end of the second surface portion of the glass plate, and the end of the glass plate is received and supported therein. The thickness of the portion of the pressing edge is larger than the plate thickness of the portion of the frame body. It is a support structure for a glass plate in a building fixture. In one aspect, the building fixture is a flush window. In one aspect, the building fixture is a door body provided with a window portion, and the peripheral frame is formed inside the peripheral frame of the door body.

[0006] In one aspect, the frame and the pressing edge are made of steel (such as steel or stainless steel). In one aspect, the thickness of the pressing edge portion (plate thickness or thickness in the prospective direction) is approximately twice or more than twice the plate thickness of the frame portion. In one aspect, the thickness of the pressing edge portion is 3 mm or more. In one aspect, the thickness of the frame portion is 1.5 - 1.6 mm, but it may be more than that. In one aspect, the bottom surface of the groove portion is composed of a portion of the frame that extends in a direction perpendicular (prospective direction) to the portion of the frame. The pressing edge is attached to the upper frame, lower frame, and left and right vertical frames of the frame, and is attached over the entire circumference of the frame by the upper pressing edge, lower pressing edge, and left and right pressing edges.

[0007] In one aspect, the pressing edge portion is formed by stacking a plurality of steel plates. In one aspect, the pressing edge portion is composed of a first member having a first plate thickness and a second member having a second plate thickness larger than the first plate thickness. In one aspect, the first plate thickness is substantially the same as the plate thickness of the frame portion. In one aspect, the first plate thickness is 1.5 - 1.6 mm. In one aspect, the second plate thickness is 3 mm, but it may be more than that. In one aspect, the first member is formed in a U - shaped cross - section view from a first attachment surface, a second attachment surface, and a prospective surface. In one aspect, the second member has an L - shaped cross - section view from an attachment side and a prospective side. When the caulking edge is formed by combining two members, namely a first member and a second member, the overall cross-sectional shape of the caulking edge is square or U-shaped, and one finding surface becomes the portion of the caulking edge facing the end of the second surface portion of the glass plate. The combination of the thin first member and the thick second member is not limited to the combination of the first member with a U-shaped cross-section and the second member with an L-shaped cross-section in cross-sectional view. The first member may have an L-shaped cross-section in cross-sectional view, and the second member may be a plate-like body. In one aspect, the second member is located on the back surface of the first member, and the first member faces the end of the second surface portion of the glass plate. By forming the caulking edge by combining a thin first member and a thick second member with a U-shaped cross-section in cross-sectional view, positioning the first member with a U-shaped cross-section on the outside, and housing the second member inside, the appearance of the caulking edge is the same as that of the caulking edge formed by bending a conventional thin plate material (the R of the bent corner can be made smaller, resulting in a neater appearance), while the thickness of the portion of the caulking edge forming the groove can be increased. Note that the second member may be arranged to face the end of the second surface portion of the glass plate. In one aspect, the second member has an L-shaped cross-section in cross-sectional view from a finding side and a prospective side, the finding side is located on the back surface of the first member, The prospective side is fixed to the portion of the frame body that extends in a direction perpendicular to the portion of the frame body forming the groove in a state of abutting against the portion of the frame body that extends in a direction perpendicular to the portion of the frame body forming the groove, independently of the first member. With such an attachment configuration, the second member of the caulking edge can be fixed to the frame body in advance (before being carried into the site).

[0008] In one aspect, the portion of the caulking edge is formed from a single steel member. In one aspect, the caulking edge is formed in a U-shaped cross-section in cross-sectional view from a first finding surface, a second finding surface, and a prospective surface. In one aspect, the plate thickness of the caulking edge is 3 mm, but it may be greater than that. The pressing edge may be a square pipe or a square column (solid wood) made of a wall with a predetermined wall thickness (for example, 3 mm), and one of the finding surfaces becomes the part of the pressing edge.

[0009] In one aspect, the prospective part of the frame body consists of a first prospective surface, a second prospective surface, and a recess formed between the first prospective surface and the second prospective surface. A pressing edge having a finding surface and a prospective surface is provided in the recess. The groove portion is formed from one of the finding surfaces of the recess and the finding surface of the pressing edge. The prospective surface of the pressing edge, the first prospective surface and the second prospective surface of the frame body are substantially flush. In one aspect, as illustrated in the embodiments described below, the prospective part of the frame body is the prospective part of a vertical frame. In addition, the prospective part of the frame body may be either the prospective part of the upper frame (lower surface part) or the prospective part of the lower frame (upper surface part). In this case, the prospective surfaces of three sides of the four-sided frame body and the prospective surface of the pressing edge are substantially flush.

Advantages of the Invention

[0010] The present invention forms one wall of the groove portion for receiving and supporting the end portion of the glass plate from the pressing edge portion and the other wall from the frame body portion, and makes the thickness of the pressing edge portion larger than the plate thickness of the frame body portion. By simply increasing the thickness of the pressing edge (the frame body can use the conventional one), deformation of the groove portion due to heat during a fire can be suppressed, and the fire resistance performance of the glass support structure in a fitting window (for example, a flush window) can be improved.

Brief Description of the Drawings

[0011]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Figure 16

Figure 17

Embodiments for Carrying Out the Invention

[0012] Embodiments of the present invention will be described with reference to the drawings. This embodiment relates to a flush window or FIX window provided in a building structure (for example, a wall). As shown in FIG. 1, the FIX window includes a glass plate 1 that constitutes window glass, and a frame body 2 that supports the four end portions of the glass plate 1. The FIX window is embedded so as to close an opening formed in a wall body W or the like, and a window portion is formed in the wall body W. The FIX window according to this embodiment can be used as a fire protection facility.

[0013] The FIX window is composed of a surrounding frame or frame body 2 and a glass plate 1 fitted into the frame body 2 using a pressing edge 3 (see FIGS. 2, 3, etc.) or a pressing edge 6 (see FIGS. 11, 12, etc.). The frame body 2, the pressing edge 3 (the first member 4, the second member 5), and the pressing edge 6 are made of a steel plate (for example, steel or stainless steel) bent into a predetermined shape.

[0014] The glass plate 1 of the FIX window is a rectangular plate body with a predetermined thickness, and includes a first surface portion 10 and a second surface portion 11 that are the finding surfaces of the FIX window, an upper edge 12, a lower edge 13, a left edge 14, and a right edge 15. The glass plate 1 is formed of glass having a predetermined fire protection performance, for example, wired glass, heat-resistant tempered glass, heat-resistant crystallized glass, or the like.

[0015] The frame body 2 of the FIX window will be described. The frame body 2 is formed in a four-sided frame shape from an upper frame 20 that extends horizontally in the horizontal direction, a lower frame 21 that extends horizontally in the horizontal direction, and left and right vertical frames 22, 23 that extend vertically in the height direction. The pressing edge 3 (the first member 4, the second member 5) and the pressing edge 6 are long members that extend along the upper frame 20, the lower frame 21, and the left and right vertical frames 22, 23 of the frame body 2.

[0016] The upper frame 20 of the frame body 2 will be described. The upper frame 20, which is a long member that extends horizontally, as shown in FIGS. 2 and 10, includes a first finding surface 200 on the first side, a second finding surface 201 on the second side, and a lower surface portion that connects between the lower ends of the first finding surface 200 and the second finding surface 201. The lower surface portion includes a first lower surface 202 on the first finding surface 200 side, a second lower surface 203 on the second finding surface 201 side, and a convex portion 204 located between the first lower surface 202 and the second lower surface 203.

[0017] In this embodiment, the dimension of the second lower surface 203 in the front-rear direction (prospective direction) is larger than the dimension of the first lower surface 202 in the front-rear direction (prospective direction), and the convex portion 204 is located at a position biased toward the first side with respect to the central portion of the lower surface portion in the front-rear direction (prospective direction). The convex portion 204 is composed of a first contact surface 2040 on the first side, a second contact surface 2041 on the second side, and a lower surface 2042.

[0018] On the second lower surface 203 of the upper frame 20, a glass pressing member, that is, a pressing edge 3, is fixed at a position located on the second side of the convex portion 204. The upper end portion of the glass plate 1 is received in a groove portion formed between the convex portion 204 and the pressing edge 3.

[0019] The lower frame 21 of the frame body 2 will be described. The lower frame 21, which is a long member extending horizontally, is composed of a first contact surface 210 on the first side, a second contact surface 211 on the second side, and an upper surface portion connecting between the upper ends of the first contact surface 210 and the second contact surface 211 as shown in FIGS. 2, 4, 11, and 13. The upper surface portion is composed of a first upper surface 212 on the first contact surface 210 side, a second upper surface 213 on the second contact surface 211 side, and a convex portion 214 located between the first upper surface 212 and the second upper surface 213.

[0020] In this embodiment, the dimension of the second upper surface 213 in the front-rear direction (prospective direction) is larger than the dimension of the first upper surface 212 in the front-rear direction (prospective direction), and the convex portion 214 is located at a position biased toward the first side with respect to the central portion of the upper surface portion in the front-rear direction (prospective direction). The convex portion 214 is composed of a first contact surface 2140 on the first side, a second contact surface 2141 on the second side, and an upper surface 2142.

[0021] On the second upper surface 213 of the lower frame 21, a glass pressing member, that is, a pressing edge 3, is fixed at a position located on the second side of the convex portion 204. The lower end portion of the glass plate 1 is received in a groove portion formed between the convex portion 204 and the pressing edge 3.

[0022] The left and right vertical frames 22 and 23 of the frame body 2 will be described. One vertical frame 22, which is a long member extending vertically, as shown in FIGS. 3, 6, 12, and 14, includes a first finding surface 220 on the first side, a second finding surface 221 on the second side, and a prospective surface connecting the inner ends between the first finding surface 220 and the second finding surface 221. The prospective surface consists of a first prospective surface 222 on the first finding surface 220 side, a second prospective surface 223 on the second finding surface 221 side, and a recess 224 located between the first prospective surface 222 and the second prospective surface 223.

[0023] In the present 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 consists of a first finding surface 2240 on the first side, a second finding surface 2241 on the second side, and a bottom surface 2242 extending in the prospective direction.

[0024] A glass pressing member, that is, a pressing edge 3, is fixed to the recess 224 of the vertical frame 22 adjacent to the second finding surface 2241 of the recess 224. A groove portion is formed in the recess 224 by the pressing edge 3 provided in the recess 224, and the side end portion of the glass plate 1 is received in the groove portion.

[0025] The other vertical frame 23, which is a long member extending vertically, as shown in FIGS. 3 and 12, includes a first finding surface 230 on the first side, a second finding surface 231 on the second side, and a prospective surface connecting the inner ends between the first finding surface 230 and the second finding surface 231. The prospective surface consists of a first prospective surface 232 on the first finding surface 230 side, a second prospective surface 233 on the second finding surface 231 side, and a recess 234 located between the first prospective surface 232 and the second prospective surface 233.

[0026] In the present 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 234 is located at a position biased toward the second side in the prospective direction of the prospective surface portion. The recess 234 consists of a first finding surface 2340 on the first side, a second finding surface 2341 on the second side, and a bottom surface 2342 extending in the prospective direction.

[0027] In the recess 234 of the vertical frame 23, a glass pressing member, that is, the pressing edge 3, is fixed adjacent to the second finding surface 2341 of the recess 234. A groove portion is formed in the recess 234 by the pressing edge 3 provided in the recess 234, and the side end portion of the glass plate 1 is received in the groove portion.

[0028] The first embodiment of the pressing edge used for supporting the glass plate 1 of the FIX window will be described. The pressing edge 3 according to the first embodiment is formed from a first member 4 and a second member 5 which are elongated members extending along the upper frame 20, the lower frame 21, and the left and right vertical frames 22, 23 of the frame body 2. In this embodiment, the second member 5 of the pressing edge 3 is carried into the site in a state of being fixed to the upper frame 20, the lower frame 21, and the left and right vertical frames 22, 23 of the frame body 2 at the factory (see FIG. 9), and the first member 4 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 so as to cover the second member 5 when the glass plate 1 is attached.

[0029] The first member 4 of the pressing edge 3 has a U-shaped cross section from a first finding surface 40, a second finding surface 41, and a prospective surface 42, and 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 420 formed in the prospective surface 42 with the edges of the first finding surface 40 and the second finding surface 41 in contact with the upper frame 20, the lower frame 21, and the left and right vertical frames 22, 23 of the frame body 2, and the heads of the screws 16 are flush with the holes 420.

[0030] The second member 5 of the pressing edge 3 has an L-shaped cross section from a finding side 50 and a prospective side 51, and 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 17 extending through holes 510 formed in the prospective side 51 with the surface portion of the prospective side 51 in contact with the upper frame 20, the lower frame 21, and the left and right vertical frames 22, 23 of the frame body 2. A hole 511 for inserting the screw 16 for fixing the first member 4 is formed in the prospective side 51. The first member 4 and the second member 5 of the pressing edge 3 may be fixed by welding or screws at a plurality of locations in the length direction of the first member 4 and the second member 5 with the first finding surface 40 of the first member 4 in contact with the finding side 50 of the second member 5, and may be in close contact.

[0031] In the edge pressing portion 3 composed of the first member 4 and the second member 5, the finding side 50 of the second member 5 is in contact with the inner surface of the first finding surface 40 of the first member 4. The first plate thickness t1 (FIG. 8) of the steel plate forming the first member 4 of the edge pressing portion 3 is substantially the same as the plate thickness t3 (FIGS. 4 and 6) of the steel plate forming the frame body 2, and the second plate thickness t2 (FIG. 8) of the steel plate forming the second member 5 of the edge pressing portion 3 is larger than t1. The first plate thickness t1 of the first member 4 and the plate thickness t3 of the steel plate forming the frame body 2 are, for example, 1.5 to 1.6 mm, and the second plate thickness t2 of the steel plate forming the second member 5 of the edge pressing portion 3 is, for example, 3 mm. In one aspect, it is sufficient that the total t1 + t2 of the first plate thickness t1 of the first finding surface 40 of the first member 4 and the second plate thickness t2 of the finding side 50 of the second member 5 is at least 3 mm.

[0032] As shown in FIG. 2, the edge pressing portion 3 provided on the upper frame 20 is fixed to the second lower surface 203 such that the first finding surface 40 of the first member 4 faces the second finding surface 2041 of the convex portion 204 of the upper frame 20 with a gap therebetween, and the finding side 50 of the second member 5 fixed to the second lower surface 203 via the prospective side 51 abuts against the back surface or inner surface of the first finding surface 40. The upper end portion of the glass plate 1 is received in the groove portion between the first finding surface 40 of the first member 4 of the edge pressing portion 3 and the second finding surface 2041 of the convex portion 204.

[0033] With the upper end portion of the glass plate 1 received in the groove portion, the upper end edge 12 of the glass plate 1 and the bottom surface of the groove portion (formed from the second lower surface 203) are separated from each other, and the backup material 7 and the sealing material 8 are filled in the gap between the upper end portion of the first surface portion 10 of the glass plate 1 and the second finding surface 2041 of the convex portion 204 and in the gap between the upper end portion of the second surface portion 11 of the glass plate 1 and the first finding surface 40 of the edge pressing portion 3. A heat-expanded refractory member 9 is provided on the bottom surface of the groove portion, and the heat-expanded refractory member 9 foams due to the heat during a fire to close the gap between the upper end portion of the glass plate 1 and the groove portion. The lower surface 2042 of the convex portion 204 of the upper frame 20 and the prospective surface 42 of the first member 4 of the edge pressing portion 3 are flush.

[0034] As shown in FIGS. 2 and 4, the edge pressing member 3 provided on the lower frame 21 is fixed to the second upper surface 213 such that the first finding surface 40 of the first member 4 is spaced apart and opposed to the second finding surface 2141 of the convex portion 214 of the lower frame 21. The finding edge 50 of the second member 5 fixed to the second upper surface 213 via the prospective side 51 abuts against the back surface or inner surface of the first finding surface 40. The lower end portion of the glass plate 1 is received in the groove portion between the first finding surface 40 of the first member 4 of the edge pressing member 3 and the second finding surface 2141 of the convex portion 214.

[0035] With the lower end portion of the glass plate 1 received in the groove portion, the lower end edge 13 of the glass plate 1 and the bottom surface of the groove portion (formed from the second upper surface 213) are separated except for the portion that abuts against the setting block 13' (see FIG. 4). The gap between the lower end portion of the first surface portion 10 of the glass plate 1 and the second finding 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 finding surface 40 of the first member 4 of the edge pressing member 3 are filled with a backup material 7 and a sealing material 8. A heat expansion refractory member 9 is provided on the bottom surface of the groove portion. When heated during a fire, the heat expansion refractory member 9 foams to close the gap between the lower end portion of the glass plate 1 and the groove portion. The upper surface 2142 of the convex portion 214 of the lower frame 21 and the prospective surface 42 of the first member 4 of the edge pressing member 3 are flush.

[0036] As shown in FIGS. 4 and 5, on the second upper surface 213 of the lower frame 21, insertion holes 2130 (FIG. 4) for the screw 16 and insertion holes 2131 (FIG. 5) for the screw 17 are respectively formed at positions adjacent to the portion forming the bottom surface of the groove portion. On the back surface of the second upper surface 213, at least a backup plate 18 (in one aspect, a long member extending in the length direction of the lower frame 21) is fixed (welded) below the insertion holes 2130 and 2131. Female screws 180 (FIG. 4) to which the screw 16 is fixed and female screws 181 (FIG. 5) to which the screw 17 is fixed are formed on the backup plate 18 corresponding to the insertion holes 2130 and 2131. The screw 16 for fixing the first member 4 and the screw 17 for fixing the second member 5 are respectively fixed to the backup plate 18.

[0037] The backup plate 18 is fixed (welded) to the second upper surface 213 of the lower frame 21 at the factory. Insertion holes 2130 and 2131 are formed at predetermined positions on the second upper surface 213, and screw holes, that is, female screws 180 and 181, are formed on the backup plate 18 corresponding to the insertion holes 2130 and 2131. In this embodiment, the second member 5 of the pressing edge 3 is fixed to the second upper surface 213 of the lower frame 21 and the backup plate 18 by screws 17 at the factory. Note that, with respect to the backup plate 18 fixed to the second upper surface 213, female screws may be formed on the second upper surface 213 and the backup plate 18 simultaneously. In this case, screw holes instead of insertion holes are formed on the second upper surface 213. Although the fixing structure of the pressing edge 3 in the lower frame 21 has been described, these descriptions can be applied to the fixing structure of the pressing edge 3 in the upper frame 20 by replacing the second upper surface 213 with the second upper surface 203.

[0038] As shown in FIGS. 3 and 6, the pressing edge 3 provided on the vertical frame 22 is fixed to the bottom surface 2242 of the recess 224 such that the first finding surface 40 of the first member 4 is spaced apart and opposed to the first finding surface 2240 of the recess 224 of the vertical frame 22. The finding edge 50 of the second member 5 fixed to the bottom surface 2242 of the recess 224 via the expected edge 51 abuts against the back surface or the inner surface of the first finding surface 40. One side end portion of the glass plate 1 is received in the groove portion between the first finding surface 40 of the first member 4 of the pressing edge 3 and the first finding surface 2240 of the recess 224.

[0039] With one side end portion of the glass plate 1 received in the groove portion, the side edge 14 of the glass plate 1 and the bottom surface of the groove portion (formed from the bottom surface 2242 of the recess 224) are spaced apart. The gap between the side end portion of the first surface portion 10 of the glass plate 1 and the first finding surface 2240 of the recess 224, and the gap between the side end portion of the second surface portion 11 of the glass plate 1 and the first finding surface 40 of the first member 4 of the pressing edge 3 are filled with a backup material 7 and a sealing material 8. A heat expansion refractory member 9 is provided on the bottom surface of the groove portion. When heated by a fire, the heat expansion refractory member 9 foams to close the gap between the side end portion of the glass plate 1 and the groove portion. The first expected surface 222 and the second expected surface 223 of the vertical frame 22 and the expected surface 42 of the first member 4 of the pressing edge 3 are substantially flush.

[0040] As shown in FIGS. 6 and 7, at the bottom surface 2242 of the recess 224 of the vertical frame 22, screw insertion holes 2243 for the screw 16 and screw insertion holes 2244 for the screw 17 are formed at positions adjacent to the portion forming the bottom surface of the groove portion. On the back surface of the bottom surface 2242, at least a backup plate 18 (in one aspect, a long member extending in the longitudinal direction of the vertical frame 22) is fixed (welded) outside the insertion holes 2243 and 2244. In the backup plate 18, female screws 180 (FIG. 6) to which the screw 16 is fixed and female screws 181 (FIG. 7) to which the screw 17 is fixed are formed corresponding to the insertion holes 2243 and 2244. The screw 16 for fixing the first member 4 and the screw 17 for fixing the second member 5 are respectively fixed to the backup plate 18.

[0041] The backup plate 18 is fixed (welded) to the bottom surface 2242 of the recess 224 of the vertical frame 22 at the factory. Insertion holes 2243 and 2244 are formed at predetermined positions on the bottom surface 2242, and screw holes, that is, female screws 180 and 181, are formed in the backup plate 18 corresponding to the insertion holes 2243 and 2244. In this embodiment, the second member 5 of the pressing edge 3 is fixed to the bottom surface 2242 of the vertical frame 22 and the backup plate 18 by the screw 17 at the factory. Note that, with respect to the backup plate 18 fixed to the bottom surface 2242, female screws may be formed simultaneously on the bottom surface 2242 and the backup plate 18. In this case, screw holes instead of insertion holes are formed in the bottom surface 2242. Although the fixing structure of the pressing edge 3 in the vertical frame 22 has been described, these descriptions can be applied to the fixing structure of the pressing edge 3 in the vertical frame 23 by replacing the bottom surface 2242 with the bottom surface 2342.

[0042] As shown in FIG. 3, the pressing edge 3 provided on the vertical frame 23 is fixed to the bottom surface 2342 of the recess 234 such that the first finding surface 40 of the first member 4 faces the first finding surface 2340 of the recess 234 of the vertical frame 23 with a gap therebetween. The finding edge 50 of the second member 5 fixed to the bottom surface 2342 of the recess 234 via the prospective side 51 abuts against the back surface or the inner surface of the first finding surface 40. The other side end portion of the glass plate 1 is received in the groove portion between the first finding surface 40 of the first member 4 of the pressing edge 3 and the first finding surface 2340 of the recess 234.

[0043] With the other side end portion of the glass plate 1 received in the groove portion, the side edge 15 of the glass plate 1 and the bottom surface of the groove portion (formed from the bottom surface 2342 of the recess 234) are spaced apart. The gap between the side end portion of the first surface portion 10 of the glass plate 1 and the first finding surface 2340 of the recess 234, and the gap between the side end portion of the second surface portion 11 of the glass plate 1 and the first finding surface 40 of the first member 4 of the pressing edge 3 are filled with a backup material 7 and a sealing material 8. A heat expansion refractory member 9 is provided on the bottom surface of the groove portion. When heated by a fire, the heat expansion refractory member 9 foams to close the gap between the side end portion of the glass plate 1 and the groove portion. The first prospective surface 232 and the second prospective surface 233 of the vertical frame 23 and the prospective surface 42 of the first member 4 of the pressing edge 3 are substantially flush.

[0044] In the FIX window employing the pressing edge 3 according to the first embodiment, the portion of the frame body facing the end of the first surface portion 10 of the glass plate 1 (the second finding surface 2041 of the convex portion 204 of the upper frame 20, the second finding surface 2141 of the convex portion 214 of the lower frame 21, the first finding surface 2240 of the concave portion 224 of the vertical frame 22, the first finding surface 2340 of the concave portion 234 of the vertical frame 23), and the portion of the pressing edge facing the end of the second surface portion 11 of the glass plate 1 (the first finding surface 40 of the first member 4 + the finding edge 50 of the second member 5), a groove portion is formed in which the end of the glass plate 1 is received and supported. The thickness of the portion of the pressing edge (for example, 3 mm + 1.5 to 1.6 mm) is larger than the plate thickness of the portion of the frame body (for example, 1.5 to 1.6 mm). In this embodiment, in the left and right vertical frames 22 and 23, the prospective surface of the pressing edge 3 (the prospective surface 42 of the first member 4) is made to coincide with the prospective surfaces of the vertical frames 22 and 33 (the first prospective surfaces 222 and 232, the second prospective surfaces 223 and 233), but it may be arranged in the same way as the upper frame 20 and the lower frame 21.

[0045] While referring to FIG. 10, a modified example of the pressing edge 3 according to the first embodiment will be described. The pressing edge 3 shown in FIG. 10(A) includes a steel first member 4 having a U-shaped cross section in terms of cross-sectional view from the first finding surface 40, the second finding surface 41, and the prospective surface 42, and a steel plate-like second member 5' that is abutted and fixed (welded, screwed, etc.) to the inner surface of the first finding surface 40 of the first member 4. The first finding surface 40 of the first member 4 and the second member 5' form one wall of the groove portion for receiving the glass plate 1. The plate thickness of the second member 5' (for example, 3 mm) is larger than the plate thickness of the first member 4 and the plate thickness of the frame body (not shown) (for example, 1.5 to 1.6 mm).

[0046] The pressing edge 3 shown in Fig. 10(B) consists of a steel first member 4 having a U-shaped cross-section when viewed from the first finding surface 40, the second finding surface 41, and the prospective surface 42, and a steel second member 5'' having an L-shaped cross-section when viewed from the finding surface 50' and the prospective surface 51'. The finding surface 50' of the second member 5'' is in contact with and fixed (by welding, screwing, etc.) to the inner surface of the first finding surface 40 of the first member 4, and the prospective surface 51' of the second member 5'' is in contact with and fixed (by welding, screwing, etc.) to the inner surface of the prospective surface 42 of the first member 4 (either the finding surface 50' or the prospective surface 51' may be fixed). The first finding surface 40 of the first member 4 and the finding surface 50' of the second member 5'' form one wall of the groove for receiving the glass plate 1. The plate thickness of the second member 5'' (for example, 3 mm) is larger than the plate thickness of the first member 4 and the plate thickness of a frame body (not shown) (for example, 1.5 - 1.6 mm).

[0047] The pressing edge 3 shown in Fig. 10(C) consists of a steel first member 4' having an L-shaped cross-section when viewed from the finding surface 41' and the prospective surface 42', and a steel second member 5'' having an L-shaped cross-section when viewed from the finding surface 50' and the prospective surface 51'. The prospective surface 51' of the second member 5'' is in contact with and fixed (by welding, screwing, etc.) to the inner surface of the prospective surface 42' of the first member 4', and the finding surface 50' of the second member 5'' forms one wall of the groove for receiving the glass plate 1. The plate thickness of the second member 5'' (for example, 3 mm) is larger than the plate thickness of the first member 4' and the plate thickness of a frame body (not shown) (for example, 1.5 - 1.6 mm).

[0048] The pressing edge 3 shown in Fig. 10(D) consists of a steel first member 4' having an L-shaped cross-section when viewed from the finding surface 41' and the prospective surface 42', and a steel second member 5'' having an L-shaped cross-section when viewed from the finding surface 50' and the prospective surface 51'. The prospective surface 51' of the second member 5'' faces the prospective surface 42' of the first member 4', and its edge is in contact with and fixed (by welding, etc.) to the inner surface of the finding surface 41' of the first member 4', and the finding surface 50' of the second member 5'' forms one wall of the groove for receiving the glass plate 1. The plate thickness of the second member 5'' (for example, 3 mm) is larger than the plate thickness of the first member 4' and the plate thickness of a frame body (not shown) (for example, 1.5 - 1.6 mm).

[0049] The pressing edge 3 shown in Fig. 10(E) is composed of a finding surface 41´, a first steel member 4´ having an L-shaped cross-section view from the prospective surface 42´, and a plate-shaped second steel member 5´ that forms one wall of the groove for receiving the glass plate 1. The edge of the second member 5´ is in contact with and fixed (such as welded) to the inner surface of the prospective surface 42´ of the first member 4´. The plate thickness of the second member 5´ (for example, 3 mm) is larger than the plate thickness of the first member 4 and the plate thickness of the frame body (not shown) (for example, 1.5 - 1.6 mm).

[0050] The pressing edge 3 shown in Fig. 10(F) is composed of a finding surface 41´, a first prospective surface 42´, a second prospective surface 43´, and a first steel member 4´´ having a U-shaped cross-section view from these surfaces, and a plate-shaped second steel member 5´ located between the tips of the first prospective surface 42´ and the second prospective surface 43´ of the first member 4´´. One edge of the second member 5´ is in contact with and fixed (such as welded) to the inner surface of the first prospective surface 42´ of the first member 4´, and the other edge is in contact with and fixed (such as welded) to the inner surface of the second prospective surface 43´ of the first member 4´. The second member 5´ is configured to form one wall of the groove for receiving the glass plate 1. The plate thickness of the second member 5´ (for example, 3 mm) is larger than the plate thickness of the first member 4´´ and the plate thickness of the frame body (not shown) (for example, 1.5 - 1.6 mm).

[0051] Referring to FIGS. 11 to 14, a second embodiment of the pressing edge used to support the glass plate 1 of the FIX window will be described. The pressing edge 6 according to the second embodiment is an elongated member extending along the upper frame 20, the lower frame 21, and the left and right vertical frames 22, 23. The pressing edge 6 has a U-shaped cross section when viewed in cross section from the first finding surface 60, the second finding surface 61, and the prospective surface 62. The plate thickness t4 (FIGS. 13 and 14) of the steel plate forming the pressing edge 6 is larger than the plate thickness t3 (FIGS. 13 and 14) of the steel plate forming the frame body 2. The plate thickness t3 of the steel plate forming the frame body 2 is, for example, 1.5 to 1.6 mm, and the plate thickness t4 of the steel plate forming the pressing edge 6 is, for example, 3 mm. The pressing edge 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 formed in the prospective surface 62 with the edges of the first finding surface 60 and the second finding surface 61 in contact with the upper frame 20, the lower frame 21, and the left and right vertical frames 22, 23 of the frame body 2, and the heads of the screws 16 are flush with the holes.

[0052] As shown in FIG. 11, the pressing edge 6 provided on the upper frame 20 is fixed to the second lower surface 203 such that the first finding surface 60 faces the second finding surface 2041 of the convex portion 204 of the upper frame 20 with a gap therebetween, and the upper end portion of the glass plate 1 is received in the groove portion between the first finding surface 60 of the pressing edge 6 and the second finding surface 2041 of the convex portion 204.

[0053] With the upper end portion of the glass plate 1 received in the groove portion, the upper end edge 12 of the glass plate 1 is spaced apart from the bottom surface of the groove portion (formed from the second lower surface 203), and the gap between the upper end portion of the first surface portion 10 of the glass plate 1 and the second finding 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 finding surface 60 of the pressing edge 6 are filled with a backup material 7 and a sealing material 8. A heat-expanded refractory member 9 is provided on the bottom surface of the groove portion, and the heat-expanded refractory member 9 foams due to heat during a fire to close the gap between the upper end portion of the glass plate 1 and the groove portion. The lower surface 2042 of the convex portion 204 of the upper frame 20 and the prospective surface 62 of the pressing edge 6 are flush.

[0054] As shown in FIGS. 11 and 13, the edge pressing member 6 provided on the lower frame 21 is fixed to the second upper surface 213 such that the first finding surface 60 of the edge pressing member 6 faces the second finding surface 2141 of the convex portion 214 of the lower frame 21 with a gap therebetween, and the lower end portion of the glass plate 1 is received in the groove portion between the first finding surface 60 of the edge pressing member 6 and the second finding surface 2141 of the convex portion 214.

[0055] With the lower end portion of the glass plate 1 received in the groove portion, the lower end edge 13 of the glass plate 1 and the bottom surface of the groove portion (formed from the second upper surface 213) are separated except for the portion in contact with the setting block 13' (see FIG. 13). In the gaps between the lower end portion of the first surface portion 10 of the glass plate 1 and the second finding surface 2141 of the convex portion 214, and between the lower end portion of the second surface portion 11 of the glass plate 1 and the first finding surface 60 of the edge pressing member 6, backup materials 7 and sealing materials 8 are filled. On the bottom surface of the groove portion, a thermal expansion refractory member 9 is provided, and when heated in a fire, the thermal expansion refractory member 9 foams to close the gap between the lower end portion of the glass plate 1 and the groove portion. The upper surface 2142 of the convex portion 214 of the lower frame 21 and the prospective surface 62 of the edge pressing member 6 are flush.

[0056] As shown in FIG. 13, on the second upper surface 213 of the lower frame 21, screw insertion holes 2130 are formed in the portion adjacent to the portion forming the bottom surface of the groove portion. On the back surface of the second upper surface 213, at least a backup plate 18 (in one aspect, a long member extending in the length direction of the lower frame 21) is fixed (welded) below the screw insertion holes 2130. Female screws 180 are formed on the backup plate 18 corresponding to the screws 16, and the screws 16 for fixing the edge pressing member 6 are fixed to the backup plate 18. Although the fixing structure of the edge pressing member 6 in the lower frame 21 has been described, these descriptions can be applied to the fixing structure of the edge pressing member 6 in the upper frame 20 by replacing the second upper surface 213 with the second upper surface 203.

[0057] As shown in FIGS. 12 and 14, the edge pressing member 6 provided on the vertical frame 22 is fixed to the bottom surface 2242 of the recess 224 such that the first finding surface 60 is spaced apart from and faces the first finding surface 2240 of the recess 224 of the vertical frame 22. One side end portion of the glass plate 1 is received in the groove portion between the first finding surface 60 of the edge pressing member 6 and the first finding surface 2240 of the recess 224.

[0058] With one side end portion of the glass plate 1 received in the groove portion, the side edge 14 of the glass plate 1 is spaced apart from the bottom surface of the groove portion (formed from the bottom surface 2242 of the recess 224). The gap between the side end portion of the surface portion 10 of the glass plate 1 and the first finding surface 2240 of the recess 224, and the gap between the side end portion of the second surface portion 11 of the glass plate 1 and the first finding surface 60 of the edge pressing member 6 are filled with a backup material 7 and a sealing material 8. A heat expansion refractory member 9 is provided on the bottom surface of the groove portion. When heated in a fire, the heat expansion refractory member 9 foams to close the gap between the side end portion of the glass plate 1 and the groove portion. The first prospective surface 222 and the second prospective surface 223 of the vertical frame 22 and the prospective surface 62 of the edge pressing member 6 are substantially flush.

[0059] As shown in FIG. 14, at the bottom surface 2242 of the recess 224 of the vertical frame 22, a screw insertion hole 2243 is formed in a portion adjacent to the portion forming the bottom surface of the groove portion. On the back surface of the bottom surface 2242, at least a backup plate 18 (in one aspect, a long member extending in the longitudinal direction of the vertical frame 22) is fixed (welded) outside the screw insertion hole 2243. A female screw 180 is formed in the backup plate 18 corresponding to the screw 16. The screw 16 for fixing the edge pressing member 6 is fixed to the backup plate 18. Although the fixing structure of the edge pressing member 6 in the vertical frame 22 has been described, these descriptions can be applied to the fixing structure of the edge pressing member 6 in the vertical frame 23 by replacing the bottom surface 2242 with the bottom surface 2342.

[0060] As shown in FIG. 12, the edge pressing member 3 provided on the vertical frame 23 is fixed to the bottom surface 2342 of the recess 234 such that the first finding surface 60 faces away from and is spaced from the first finding surface 2340 of the recess 234 of the vertical frame 23. The other side end portion of the glass plate 1 is received in the groove portion between the first finding surface 60 of the edge pressing member 6 and the first finding surface 2340 of the recess 234.

[0061] With the other side end portion of the glass plate 1 received in the groove portion, the side edge 15 of the glass plate 1 is spaced from the bottom surface of the groove portion (formed from the bottom surface 2342 of the recess 234). The gap between the side end portion of the first surface portion 10 of the glass plate 1 and the first finding surface 2340 of the recess 234, and the gap between the side end portion of the second surface portion 11 of the glass plate 1 and the first finding surface 60 of the edge pressing member 6 are filled with a backup material 7 and a sealing material 8. A heat expansion refractory member 9 is provided on the bottom surface of the groove portion. When heated during a fire, the heat expansion refractory member 9 foams to close the gap between the side end portion of the glass plate 1 and the groove portion. The first prospective surface 232 and the second prospective surface 233 of the vertical frame 23 and the prospective surface 62 of the edge pressing member 6 are substantially flush.

[0062] In the FIX window employing the edge pressing member 6 according to the second embodiment, a groove portion is formed from the portion of the frame body facing the end portion of the first surface portion 10 of the glass plate 1 (the second finding surface 2041 of the convex portion 204 of the upper frame 20, the second finding surface 2141 of the convex portion 214 of the lower frame 21, the first finding surface 2240 of the recess 224 of the vertical frame 22, the first finding surface 2340 of the recess 234 of the vertical frame 23) and the portion of the edge pressing member 6 facing the end portion of the second surface portion 11 of the glass plate 1 (the first finding surface 60), and the glass plate 1 is received and supported at the end portion. The thickness of the portion of the edge pressing member (for example, 3 mm) is greater than the plate thickness of the portion of the frame body (for example, 1.5 - 1.6 mm). In this embodiment, for the left and right vertical frames 22 and 23, the prospective surface 62 of the edge pressing member 6 is made to coincide with the prospective surfaces (the first prospective surfaces 222 and 232, the second prospective surfaces 223 and 233) of the vertical frames 22 and 23, but it may be arranged in the same way as the upper frame 20 and the lower frame 21.

[0063] While referring to Fig. 15, a modified example of the edge pressing member 6 according to the second embodiment will be described. The edge pressing member 6' shown in Fig. 15(A) is made of a steel square pipe-shaped member having a sectional view shape formed by a first finding surface 60', a second finding surface 61', a first expected surface 62', and a second expected surface 63'. The first finding surface 60' is configured to form one wall of a groove for receiving the glass plate 1. The plate thickness of the edge pressing member 6' (for example, 3 mm) is larger than the plate thickness of a frame body (for example, 1.5 - 1.6 mm) not shown in the figure.

[0064] The edge pressing member 6'' shown in Fig. 15(B) is made of a solid steel square column-shaped member having a sectional view shape formed by a first finding surface 60'', a second finding surface 61'', a first expected surface 62'', and a second expected surface 63''. The first finding surface 60'' is configured to form one wall of a groove for receiving the glass plate 1. The thickness in the expected direction of the edge pressing member 6'' (the distance between the first finding surface 60'' and the second finding surface 61'') is larger than the plate thickness of a frame body (for example, 1.5 - 1.6 mm) not shown in the figure.

[0065] In Figs. 1 - 9 and Figs. 11 - 14, the support structure of the glass plate 1 in the fitted and killed window as a fitting is shown. While referring to Figs. 16 and 17, the support structure of the glass plate 1 in the door as a fitting will be described. As shown in Fig. 16, the door body 19 includes a vertically rectangular door frame composed of an upper frame 190, a lower frame 191, a leading edge side vertical frame 192, and a trailing edge side vertical frame 193. A four-sided frame body (composed of an upper frame 20', a lower frame 21', and left and right vertical frames 22', 23') provided along the inner side of the door frame is formed. The glass plate 1 is supported by the edge pressing member 3 (the first member 4, the second member 5) in the frame portion. Regarding the support structure of the glass plate 1 shown in Fig. 16, while referring to Fig. 17, the support structure of the glass plate 1 in the vertical frame 22' will be described as a representative.

[0066] In this embodiment, a vertical frame 22' for attaching a glass plate 1 is integrally formed at an inner portion of a vertical frame 192 on the door tip side of the door body 19. The vertical frame 192 on the door tip side of the door body 19 includes a first finding surface 1920 on the first side and a second finding surface 1921 on the second side, and a prospective surface portion connecting between the inner ends of the first finding surface 1920 and the second finding surface 1921 includes a first prospective surface 222' on the first finding surface 1920 side, a second prospective surface 223' on the second finding surface 1921 side, and a recess 224' located between the first prospective surface 222' and the second prospective surface 223'. The recess 224' includes a first finding surface 2240' on the first side, a second finding surface 2241' on the second side, and a bottom surface 2242' extending in the prospective direction.

[0067] A glass pressing member, that is, a pressing edge 3, is fixed to the recess 224' of the vertical frame 22' adjacent to the second finding surface 2241' of the recess 224'. A groove portion is formed in the recess 224' by the pressing edge 3 provided in the recess 224', and the side end portion of the glass plate 1 is adapted to be received in the groove portion. One side end portion of the glass plate 1 is received in a groove portion between the first finding surface 40 of the first member 4 of the pressing edge 3 and the first finding surface 2240' of the recess 224'. The prospective surface 42 of the first member 4 of the pressing edge 3, the first prospective surface 222', and the second prospective surface 223' are substantially flush. Regarding the details of the configuration and mounting structure of the pressing edge 3 (the first member 4, the second member 5), the above-mentioned description (description related to the flush-mounted window) can be incorporated by reference. Further, the glass plate 1 may be supported using a pressing edge 6 instead of the pressing edge 3 (the first member 4, the second member 5), and regarding the details of the configuration and mounting structure of the pressing edge 6, the above-mentioned description (description related to the flush-mounted window) can be incorporated by reference. Although the support structure of the glass plate 1 in the vertical frame 22' has been described, regarding the support structure of the glass plate 1 in the upper frame 20', the lower frame 21', and the vertical frame 23', the description of the support structure of the glass plate 1 in the vertical frame 22' and the above-mentioned description (description related to the flush-mounted window) can be incorporated by reference.

Explanation of Reference Numerals

[0068] 1 Glass plate 10 First surface portion 11 Second surface portion 2 Frame body 20 Upper frame 203 Second lower surface (frame part, bottom surface of groove part) 2041 Second finding surface of convex part (frame part forming groove part) 21 Lower frame 213 Second upper surface (frame part, bottom surface of groove part) 2141 Second finding surface of convex part (frame part forming groove part) 22 Vertical frame 222, 222´ First prospective surface 223, 223´ Second prospective surface 224, 224´ Concave part 2240, 2240´ First finding surface of concave part (frame part forming groove part, one finding surface) 2242, 2242´ Bottom surface of concave part (frame part, bottom surface of groove part) 23 Vertical frame 232 First prospective surface 233 Second prospective surface 234 Concave part 2340 First finding surface of concave part (frame part forming groove part, one finding surface) 2342 Bottom surface of concave part (frame part, bottom surface of groove part) 3 Pressing edge 4 First member of pressing edge 40 First finding surface (pressing edge part) 41 Second finding surface 42 Prospective surface 5 Second member of pressing edge 50 Finding side (pressing edge part) 51 Prospective side 6 Pressing edge 60 First finding surface (pressing edge part) 61 Second finding surface 62 Prospective surface t1 First plate thickness t2 Second plate thickness t1 + t2 Thickness of pressing edge part t3 Plate thickness of frame (plate thickness of frame part) t4 Plate thickness of pressing edge (thickness of pressing edge part)

Claims

In a fitting in which a glass plate is supported via a pressing edge formed by bending a steel plate on a four-sided frame body formed by bending a steel plate, a groove portion is formed from a portion of the frame body facing an end portion of the first surface portion of the glass plate and a portion of the pressing edge facing an end portion of the second surface portion of the glass plate, and the end portion of the glass plate is received and supported therein. The pressing edge includes a U-shaped portion composed of a first finding portion, a second finding portion, and a projecting portion. The portion of the pressing edge is the first finding portion. The thickness of the first finding portion of the pressing edge is larger than the plate thickness of the portion of the frame body. A support structure of a glass plate in a fitting. The thickness of the first finding portion of the pressing edge is 3 mm or more. A support structure of a glass plate in the fitting according to claim 1.

3. The first finding portion of the pressing edge is formed by stacking a plurality of steel plates. A support structure of glass in the fitting according to any one of claims 1 and 2.

4. The pressing edge includes a first member composed of a first finding side, a second finding side, and a projecting side, and a second member having an L-shaped cross section composed of a finding side and a projecting side and located within the first member. The first finding portion of the pressing edge is formed by overlapping the first finding side of the first member and the finding side of the second member. The second finding portion of the pressing edge is composed of the second finding side of the first member, and the projecting portion of the pressing edge is composed of the projecting side of the first member. The plate thickness of the steel plate forming the second member is larger than the plate thickness of the steel plates forming the frame body and the first member. A support structure of a glass plate in the fitting according to claim 3. The plate thickness of the steel plates forming the first member and the frame body is 1.5 to 1.6 mm, and the sum of the plate thickness of the steel plate forming the first member and the plate thickness of the steel plate forming the second member is larger than 3 mm. A support structure of a glass plate in the fitting according to claim 4.

6. The projecting portion of the frame body is composed of a first projecting surface, a second projecting surface, and a recess formed between the first projecting surface and the second projecting surface. The recess is composed of a first finding surface, a second finding surface, and a bottom surface extending in the projecting direction. The pressing edge is provided in the recess in a state where the second finding side of the pressing edge is in contact with the second finding surface of the recess and the projecting side of the second member is in contact with the bottom surface of the recess. The portion of the frame body facing the end portion of the first surface portion of the glass plate is the first finding surface of the recess. The prospective edge of the caulking edge, the first prospective surface and the second prospective surface of the frame body are substantially flush. The support structure of the glass plate in the fitting according to any one of claims 4 and 5.

7. The first member is fixed to the prospective portion of the frame body with a first screw, The second member is fixed to the prospective portion of the frame body independently of the first member with a second screw. The support structure of the glass in the fitting according to any one of claims 4 to 6.

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