Curtain wall

Abstract

To provide a curtain wall which can be mounted by inserting a gasket between a frame material and a panel.SOLUTION: A curtain wall is provided with a panel 4B, a frame member 25 for supporting the panel 4B, and a gasket 6 arranged between an end part of the panel 4B and the frame member 25, wherein the frame member 25 has a locking groove 341 which opens toward the outdoor side and locks the gasket 6, and the locking groove 341 is located on the indoor side of a surface 4b of the panel 4B facing the outdoor side.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to curtain walls. [Background technology]

[0002] Conventionally, glass panels of curtain walls are supported by frame materials such as mullions and mullions. A gasket attached to the frame is provided in the gap between the frame and the glass panel. Patent Document 1 listed below discloses a configuration in which a gasket is attached to the frame and the edge of the glass panel is fitted into a water gap formed in the gasket. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 5-171724 Summary of the Invention [Problem to be solved by the invention]

[0004] In Patent Document 1, when the glass panel is erected by fitting the edge of the glass panel into the gasket attached to the frame material, the soft gasket made of resin or the like is deformed by the heavy glass panel, which causes a problem of poor workability.

[0005] The present disclosure has been made in consideration of the above circumstances, and provides a curtain wall that can be attached by inserting a gasket between a frame material and a panel. [Means for solving the problem]

[0006] A curtain wall according to one embodiment of the present disclosure comprises a panel, a frame material supporting the panel, and a gasket arranged between the end of the panel and the frame material, the frame material having an engagement groove that opens toward the outside and into which the gasket is engaged. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a front view of a curtain wall according to this embodiment. [Figure 2] This is a cross section taken along line II-II in Figure 1. [Figure 3] FIG. 3 is an enlarged view of part III in FIG. 2. [Figure 4] FIG. 3 is an enlarged view of part IV in FIG. 2. [Figure 5] This is a cross section taken along line VV in Figure 1. [Figure 6] FIG. 10 is a vertical cross-sectional view of a curtain wall according to a modified example of this embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0008] The curtain wall according to the present embodiment will be described below with reference to the drawings. The following embodiment shows one aspect of the present disclosure, does not limit the present disclosure, and can be modified as desired within the scope of the technical concept of the present disclosure. In the following drawings, the scale of each structure is different from the actual structure to make each configuration easier to understand.

[0009] In the following explanation, the direction connecting the outdoor side and the indoor side and running horizontally will be referred to as the indoor-outdoor direction. The direction perpendicular to the indoor-outdoor direction and running horizontally will be referred to as the left-right direction. The direction perpendicular to the indoor-outdoor direction and the left-right direction will be referred to as the up-down direction. The indoor-outdoor direction is indicated by arrow Y, with the outdoor side indicated by the +Y side in Figure 2 etc. and the indoor side indicated by the -Y side in Figure 2 etc. The left-right direction is indicated by arrow X. The up-down direction is indicated by arrow Z.

[0010] As shown in Figure 1, the curtain wall 100 is composed of a plurality of curtain wall units 101 arranged adjacent to each other in the left-right and up-down directions and connected to each other. The curtain wall unit 101 includes a frame 1, two glass panels 4A and 4B, an attachment 5 shown in Figure 2, and a gasket 6. The curtain wall 100 is made using the SSG construction method.

[0011] The frame body 1 comprises a pair of vertical frames 21, 21, an upper crossbeam 22 that serves as the upper frame, an intermediate crossbeam 24 located midway in the vertical direction, and a lower crossbeam 25 that serves as the lower frame. The frame body 1 supports the glass panels 4A, 4B. The vertical frame 21 extends in the vertical direction. The pair of vertical frames 21, 21 are spaced apart in the left-right direction. The upper crossbeam 22, the intermediate crossbeam 24, and the lower crossbeam 25 extend in the left-right direction. The upper crossbeam 22 connects the upper ends of the pair of vertical frames 21, 21. The intermediate crossbeam 24 connects the pair of vertical frames 21, 21 midway in the vertical direction. The lower crossbeam 25 connects the lower ends of the pair of vertical frames 21, 21. The vertical frames 21, the upper crossbeam 22, the intermediate crossbeam 24, and the lower crossbeam 25 correspond to frame materials in the claims.

[0012] The glass panel 4A is arranged inside a frame body formed into a four-sided frame shape by a pair of vertical frames 21, 21, an upper transom 22, and a middle transom 24. The glass panel 4B is arranged inside a frame body formed into a four-sided frame shape by a pair of vertical frames 21, 21, a middle transom 24, and a lower transom 25. As an example, a curtain wall unit 101 having two glass panels 4A, 4B inside a frame body 1 is shown, but the number of glass panels in the curtain wall unit 101 is not limited to the illustrated example. As shown in FIG. 2, the glass panels 4A, 4B are triple-glazed. The glass panels 4A, 4B may be single-glazed or double-glazed. Instead of glass panels, panels made of materials other than glass may be used. The glass panels 4A, 4B correspond to panels in the claims.

[0013] As shown in FIG. 2, the lower transom 25 has a first plate portion 31, a second plate portion 32, an exterior side plate portion 33, and a support plate portion .

[0014] The first plate portion 31 is located indoors. The first plate portion 31 is formed in a plate shape. The plate surface of the first plate portion 31 faces the vertical direction. The second plate portion 32 is arranged below the first plate portion 31 with a gap therebetween. The second plate portion 32 is formed in a plate shape. The plate surface of the second plate portion 32 faces the vertical direction. The second plate portion 32 is formed with an outside air introduction hole 32h that penetrates in the vertical direction. A plurality of outside air introduction holes 32h are formed at intervals in the left-right direction of the lower transom 25.

[0015] The outdoor side plate 33 connects the vicinity of the outdoor end 311 of the first plate 31 and the outdoor end of the second plate 32. The outdoor side plate 33 is formed in a plate shape. The plate surface of the outdoor side plate 33 faces the indoor / outdoor direction. The outdoor side plate 33 is formed with outside air introduction holes 33h that penetrate in the indoor / outdoor direction. A plurality of outside air introduction holes 33h are formed at intervals in the left-right direction of the lower transom 25. The end 311 of the first plate 31 protrudes outdoors beyond the outdoor side plate 33.

[0016] The outdoor side plate 33 is provided with an airtight material support wall 331. The airtight material support wall 331 extends from the middle in the vertical direction of the outdoor side plate 33 to the outdoor side. The airtight material support wall 331 is provided over approximately the entire length of the lower transverse interlock 25 in the horizontal direction.

[0017] The outdoor side plate 33 is provided with a locking piece 333. The locking piece 333 is located below the airtight material support wall 331. The locking piece 333 is provided over substantially the entire length of the lower transverse interlining 25 in the left-right direction. The locking piece 333 has an outdoor-side extending wall portion 334 and an upward wall portion 335. The outdoor-side extending wall portion 334 extends from the outdoor side plate 33 to the outdoor side. The upward wall portion 335 extends upward from the tip of the outdoor-side extending wall portion 334.

[0018] The support plate portion 34 extends to the outdoor side from the connection portion between the second plate portion 32 and the outdoor-side plate portion 33. The support plate portion 34 is formed in a plate shape. The plate surface of the support plate portion 34 faces the vertical direction. A setting block 39 is arranged on the upper side of the support plate portion 34. The setting block 39 is a block-shaped member. The setting block 39 is made of, for example, EPDM (ethylene propylene rubber). The setting blocks 39 are arranged at two locations spaced apart in the left-right direction of the lower transom 25. The lower end surface 4d of the glass panel 4B is arranged above the setting block 39. The glass panel 4B is supported by the support plate portion 34 via the setting block 39. The material and number of the setting blocks 39 can be set as appropriate.

[0019] A gasket 6 is provided on the support plate portion 34. The gasket 6 is disposed between the lower end surface 4d of the glass panel 4B and the support plate portion 34. The support plate portion 34 supports the lower end surface 4d of the glass panel 4B via the gasket 6.

[0020] An attachment 5 is provided on the lower transom 25. The attachment 5 is a member for attaching the glass panel 4B to the lower transom 25. The glass panel 4B is attached to the attachment 5. The attachment 5 is engaged with the lower transom 25.

[0021] The attachment 5 has a glass mounting plate portion 51 and a locking piece portion 52. The glass mounting plate portion 51 is formed in a plate shape. The plate surface of the glass mounting plate portion 51 faces the indoor / outdoor direction. The glass mounting plate portion 51 is arranged on the indoor side of the glass panel 4B with a gap therebetween. The glass mounting plate portion 51 is arranged on the outdoor side of the outdoor-side plate portion 33 of the lower transom 25 with a gap therebetween.

[0022] A structural sealant 56 and a spacer 57 are arranged in a line from bottom to top between the glass panel 4B and the glass mounting plate 51. The structural sealant 56 and the spacer 57 contact the glass panel 4B and the glass mounting plate 51 of the attachment 5. The wind pressure acting on the glass panel 4B is supported by the adhesive force of the structural sealant 56 to the glass panel 4B.

[0023] A protrusion 511 that protrudes toward the outside is provided on the glass mounting plate 51. A spacer 57 is engaged with the protrusion 511.

[0024] An airtight material 58 is sandwiched in the space surrounded by the glass mounting plate 51, the end 311 of the first plate 31 of the lower transom 25, the outdoor side plate 33, and the airtight material support wall 331. The airtight material 58 attached to the attachment 5 abuts against the outdoor side plate 33 of the lower transom 25, thereby closing any gap that may form between the attachment 5 and the outdoor side plate 33.

[0025] The locking piece 52 extends from the vertical middle of the glass mounting plate 51 toward the indoor side. The locking piece 52 is arranged below the airtight material support wall 331. The locking piece 52 has an indoor-side extending wall portion 521 and a downward wall portion 522. The indoor-side extending wall portion 521 extends from the glass mounting plate 51 toward the indoor side. The downward wall portion 522 extends downward from the tip of the indoor-side extending wall portion 521. The downward wall portion 522 is arranged on the indoor side of the upward wall portion 335 of the locking piece 333 of the lower transom 25. The locking piece 52 is locked to the locking piece 333 of the lower transom 25.

[0026] Between the attachment 5 and the lower transom 25, a space S11 is formed, surrounded by the glass mounting plate portion 51 of the attachment 5, the indoor extension wall portion 521, the outdoor side plate portion 33 of the lower transom 25, and the airtight material support wall portion 331.

[0027] An outside air introduction hole 33h formed in the outdoor side plate portion 33 of the lower transom 25 connects the space portion S11 of the attachment 5 to the hollow portion S32 formed between the first plate portion 31 and the second plate portion 32 of the lower transom 25.

[0028] An outside air inlet hole 32h formed in the second plate portion 32 of the lower transom 25 connects the hollow portion S32 of the lower transom 25 to the outside air. The outside air inlet holes 32h and 33h connect the space portion S11 of the attachment 5 to the outside air. The space portion S11 and the hollow portion S32 are equal-pressure spaces designed so that the pressure difference with the outside pressure is 50 Pa or less. This can prevent water from entering the room through the gap between the attachment 5 and the lower transom 25.

[0029] As shown in FIG. 3, a locking groove 341 that opens toward the outdoors is formed in the support plate portion 34 of the lower transom 25. The locking groove 341 is formed on the upper surface 34u side of the support plate portion 34. The locking groove 341 is formed so as to be recessed toward the indoor side. The locking groove 341 reaches from the upper surface 34u of the support plate portion 34 to the middle of the support plate portion 34 in the vertical direction. The locking groove 341 is formed so as to be recessed toward the indoor side from the end surface 35b of the lower transom 25 that is located closest to the outdoors. The locking groove 341 is located closer to the indoor side than the surface 4b of the glass panel 4B that faces the outdoors.

[0030] The locking groove 341 has a first extending wall portion 35 and a second extending wall portion 36. The first extending wall portion 35 and the second extending wall portion 36 extend from the locking groove 341 toward the outdoor side. The first extending wall portion 35 and the second extending wall portion 36 are arranged opposite each other in the vertical direction. An outdoor-side end face 36b of the second extending wall portion 36 is arranged set back toward the indoor side from the outdoor-side end face 35b of the first extending wall portion 35. A downward-protruding protrusion 36a is provided on the outdoor-side end face of the second extending wall portion 36.

[0031] A downwardly recessed restriction groove 346 is formed in the upper surface 34u of the support plate portion 34. The restriction groove 346 corresponds to the restriction portion in the claims. The restriction groove 346 does not reach the lower surface 34d of the support plate portion 34. The restriction groove 346 is located closer to the indoor side than the locking groove 341.

[0032] The gasket 6 has a base 61 and fins 64, 65. The base 61 is disposed along the upper side of the second extending wall 36 from the outdoor side of the end face 36b of the second extending wall 36. The lower surface 61d of the base 61 abuts against the upper surface 35u of the first extending wall 35. The lower surface 61d of the base 61 is recessed upward and has multiple grooves 61a formed therein. The presence of the grooves 61a prevents the gasket 6 from shifting in the indoor / outdoor direction relative to the lower interlining 25.

[0033] The base 61 is provided with an interlocking portion 62. The interlocking portion 62 extends from the base 61 toward the indoor side. The interlocking portion 62 is disposed in an interlocking groove 341 of the support plate portion 34. An interlocking projection 62a that protrudes upward is provided at the tip of the interlocking portion 62. The interlocking projection 62a is disposed on the indoor side of the projection 36a that is interlocked in the interlocking groove 341, and is interlocked with the projection 36a. The gasket 6 is prevented from slipping out of the interlocking groove 341 or moving upward.

[0034] A protruding piece 63 is provided on the base 61. The protruding piece 63 extends from the base 61 toward the indoor side. A downwardly protruding engagement projection 63a is provided at the tip of the protruding piece 63. The engagement projection 63a fits into and is engaged with a restricting groove 346 of the support plate portion 34. The engagement projection 63a is engaged with the restricting groove 346, thereby restricting movement of the gasket 6 toward the outdoor side.

[0035] Fin portions 64, 65 are provided to rise upward from the outdoor-facing portion of base portion 61. Fin portion 64 is arranged on the outdoor side of fin portion 65 with a gap therebetween. The tip of fin portion 64 is arranged along surface 4b of glass panel 4B. The tip of fin portion 65 bends along lower end surface 4d of glass panel 4B and abuts against lower end surface 4d.

[0036] When attaching the gasket 6 to the lower transom 25, the gasket 6 is inserted into the gap between the lower end surface 4d of the glass panel 4B and the support plate 34 from the outdoor side toward the indoor side. The interlocking portion 62 is inserted into the interlocking groove 341, and the interlocking projection 62a is interlocked with the projection 36a. As the gasket 6 is moved indoors, the protruding piece 63 slides along the upper surface 34u of the support plate 34, and the protruding piece 63 elastically deforms, bending upward. When the protruding piece 63 reaches the restricting groove 346, the protruding piece 63 returns to its original state and is inserted into the restricting groove 346, and the interlocking projection 63a is interlocked with the restricting groove 346. The fin portion 65 is inserted into the gap between the lower end surface 4d of the glass panel 4B and the support plate 34, and the tip of the fin portion 65 elastically deforms, bending toward the outdoor side, and the tip of the fin portion 65 abuts the lower end surface 4d of the glass panel 4B. The fin portion 64 abuts against the surface 4b of the glass panel 4B.

[0037] 2, in the upper transom 22, the same components as those in the lower transom 25 are designated by the same reference numerals and will not be described further. The support plate 34 extends from the second plate 32 toward the outdoors.

[0038] As shown in Figure 4, the gasket 6 engaged in the engagement groove 341 of the upper transom 22 has a configuration obtained by inverting the gasket 6 engaged in the engagement groove 341 of the lower transom 25, and the same components are given the same reference numerals and will not be described again. The engaged projection 63a of the protruding piece 63 is engaged with the restricting wall portion 37 extending downward from the support plate portion 34. The second extending wall portion 36 extends from the restricting wall portion 37 toward the exterior. The tip of the first extending wall portion 35 abuts against the upper end surface 4u of the glass panel 4A. The restricting wall portion 37 corresponds to the restricting portion in the claims.

[0039] As shown in Figure 5, in the vertical frame 21, the support plate portion 34 is arranged along the indoor-outdoor direction, and the same components as those in the lower transverse transverse 25 are given the same reference numerals and will not be described again. The locked portion 62 of the gasket 6 is locked in the locking groove 341 of the support plate portion 34. The tip of the fin portion 65 of the gasket 6 abuts against the left-right end surface 4s of the glass panels 4B, 4A.

[0040] Locking grooves 341 are formed in the upper and lower parts of the intermediate transverse thread 24. Gaskets 6 are inserted into the locking grooves 341. The intermediate transverse thread 24 supports the lower end surface 4d of the glass panel 4A via the gasket 6 arranged on the upper part. The intermediate transverse thread 24 supports the upper end surface 4u of the glass panel 4B via the gasket 6 arranged on the lower part.

[0041] Gaskets 6 of the same shape are attached to the vertical frame 21, the upper transom 22, the intermediate transom 24 and the lower transom 25.

[0042] In the curtain wall 100 configured in this manner, the gasket 6 can be attached by inserting it from the outdoor side toward the indoor side into the locking grooves 341 formed in the vertical frame 21, the upper transom 22, the intermediate transom 24, and the lower transom 25.

[0043] The locking grooves 341 formed in the vertical frame 21, the upper transom 22, the middle transom 24, and the lower transom 25 are located on the indoor side of the surfaces 4b of the glass panels 4A and 4B. This prevents the gaskets 6 attached to the locking grooves 341 from protruding outdoors beyond the glass panels 4A and 4B.

[0044] The fins 65 on the gasket 6 abut against the end faces 4d, 4u, 4s of the glass panels 4A, 4B, ensuring airtightness between the vertical frame 21, upper transom 22, intermediate transom 24, and lower transom 25 and the glass panels 4A, 4B. The fins 65 on the gasket 6 can absorb any installation errors between the vertical frame 21, upper transom 22, intermediate transom 24, and lower transom 25 and the glass panels 4A, 4B.

[0045] Since the gasket 6 can be attached by inserting it into the gaps between the vertical frame 21, the upper transom 22, the intermediate transom 24 and the lower transom 25 and the glass panels 4A, 4B, the gasket 6 can be attached after the glass panels 4A, 4B are erected.

[0046] The gaskets 6 attached to the vertical frame 21, the upper transom 22, the intermediate transom 24 and the lower transom 25 have the same shape, so that the components can be standardized.

[0047] Since no attachment is required for attaching the gasket 6, the structure can be simple and the workability of attaching the gasket 6 is good.

[0048] (Variation) The curtain wall according to the modified example will be described mainly with reference to Fig. 6. In the modified example described below, the configurations corresponding to the embodiment shown above may be assigned the same reference numerals and the description thereof may be omitted.

[0049] As shown in FIG. 6, in this modification, an attachment groove 38 recessed upward is formed on the lower surface of the support plate portion 34 of the lower transverse interlock 25.

[0050] The gasket 6A has a base 61, fin portions 64, 65, a covering portion 66, and an extending portion 67. The covering portion 66 extends downward from the base 61. The covering portion 66 covers the outdoor side of the end surface 35b of the first extending wall portion 35 of the support plate portion 34 and is arranged along the underside of the support plate portion 34. The covering portion 66 is provided with a locking protrusion 66a that is locked into the mounting groove 38. The extending portion 67 extends downward from the indoor side end of the covering portion 66. The extending portion 67 is arranged along the underside of the support plate portion 34.

[0051] The gasket 6A attached to the upper transom 22 has a configuration obtained by turning upside down the gasket 6A attached to the lower transom 25, and the same components are given the same reference numerals and descriptions thereof will be omitted. The extension portion 67 of the gasket 6A attached to the upper transom 22 is located on the indoor side of the extension portion 67 of the gasket 6A attached to the lower transom 25. The extension portion 67 of the gasket 6A attached to the lower transom 25 may also be located on the indoor side of the extension portion 67 of the gasket 6A attached to the upper transom 22.

[0052] In the curtain wall 100 configured in this manner, the gasket 6 can be attached by inserting it from the outdoor side toward the indoor side into the locking grooves 341 formed in the vertical frame 21, the upper transom 22, the intermediate transom 24, and the lower transom 25.

[0053] The end faces 35b of the support plate portions 34 of the vertical frame 21, upper transom 22, intermediate transom 24, and lower transom 25 are hidden by the covering portion 66 of the gasket 6. This prevents the vertical frame 21, upper transom 22, intermediate transom 24, and lower transom 25 from being exposed to the outdoors, improving the appearance.

[0054] While preferred embodiments of the present disclosure have been described above with reference to the accompanying drawings, it goes without saying that the present disclosure is not limited to these examples. The shapes and combinations of the components shown in the above examples are merely examples, and various modifications can be made based on design requirements, etc., without departing from the spirit of the present disclosure.

[0055] In the embodiment described above, the locking grooves 341 are located on the indoor side of the surfaces 4b of the glass panels 4A and 4B, but this is not limiting. The locking grooves 341 may also be located on the outdoor side of the surfaces 4b of the glass panels 4A and 4B.

[0056] In the embodiment described above, the gasket 6 has the protruding piece 63, but this is not limited to this. The gasket 6 may not have the protruding piece 63, and the locked portion 62 itself may restrict movement in the indoor / outdoor direction.

[0057] In the above embodiment, the gasket 6 has the fin portions 64, 65, but is not limited to this. The base portion 61 of the gasket 6 itself may abut against the end surfaces of the glass panels 4A, 4B.

[0058] The present disclosure includes the following aspects.

[0059] (1) A curtain wall comprising a panel, a frame material supporting the panel, and a gasket placed between the end of the panel and the frame material, the frame material opening toward the exterior and having a locking groove in which the gasket is locked.

[0060] (2) A curtain wall according to (1) above, wherein the locking groove is located on the indoor side of the surface of the panel facing the outdoors.

[0061] (3) A curtain wall according to (1) or (2), wherein the frame material has a restricting portion that restricts the movement of the gasket toward the outside.

[0062] (4) A curtain wall described in any one of (1) to (3), wherein the gasket has a base provided with an engaging portion that engages with the engaging groove, and a fin portion that rises from the base toward the end face of the panel, and the tip of the fin portion abuts against the end face of the panel.

[0063] (5) A curtain wall according to any one of (1) to (4), wherein the gasket has a covering portion that covers the surface of the frame material facing the outdoors. [Explanation of symbols]

[0064] 4A, 4B Glass panel (panel), 6, 6A Gasket, 21 Vertical frame (frame material), 22 Upper mullion (frame material), 24 Intermediate mullion (frame material), 25 Lower mullion (frame material), 37 Restricting wall portion (restricting portion), 61 Base, 62 Retaining portion, 63 Protruding piece, 64, 65 Fin portion, 66 Covering portion, 100 Curtain wall, 341 Retaining groove, 346 Restricting groove (restricting portion)

Claims

1. The panel and A frame material supporting the panel; a gasket disposed between the end of the panel and the frame material; The frame material is a curtain wall that opens toward the outside and has a locking groove in which the gasket is locked.

2. The curtain wall according to claim 1, wherein the locking groove is located on the indoor side of the surface of the panel facing the outdoor side.

3. The curtain wall according to claim 1 or 2, wherein the frame material has a restricting portion that restricts movement of the gasket toward the exterior.

4. The gasket is a base portion provided with a locked portion that is locked in the locking groove; a fin portion rising from the base portion toward the end surface of the panel, 3. The curtain wall according to claim 1, wherein the tip of the fin portion abuts against the end surface of the panel.

5. The gasket is The curtain wall according to claim 1 or 2, further comprising a covering portion that covers the surface of the frame material facing the outside.

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