Fixing structure for mullion, curtain wall and fixing method for mullion

Abstract

To provide a fixing structure for a mullion, a curtain wall and a fixing method for a mullion that can improve on-site workability.SOLUTION: A fixing structure 2A for a mullion comprises a first mullion member 20 fixed to a building frame, a second mullion member 40 arranged on an outdoor side of the first mullion member 20, and a bracket 30 connecting the first mullion member 20 and the second mullion member 40. The bracket 30 has a fixed portion 31 fixed to the first mullion member 20 and a locking portion 33 that locks the second mullion member 40.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present disclosure relates to a mullion fixing structure, a curtain wall, and a method for fixing a mullion. [Background technology]

[0002] Curtain walls that are installed in openings of buildings have been known for some time. Patent Document 1 discloses a curtain wall mullion that includes steel mullions fixed to the building frame, aluminum alloy mullions that support glass, and brackets that connect these mullions together (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-371657 Summary of the Invention [Problem to be solved by the invention]

[0004] In the curtain wall mullions of Patent Document 1, the brackets are fixed to the steel mullions by welding on-site, which poses a problem of poor workability.

[0005] The present disclosure has been made in consideration of the above circumstances, and provides a post fixing structure, a curtain wall, and a post fixing method that can improve on-site workability. [Means for solving the problem]

[0006] A fixing structure for a upright according to one embodiment of the present disclosure comprises a first upright member fixed to a main body, a second upright member arranged on the outdoor side of the first upright member, and a bracket connecting the first upright member and the second upright member, the bracket having a fixing portion fixed to the first upright member and a locking portion locking the second upright member. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a front view of a curtain wall according to this embodiment. [Figure 2] FIG. 2 is a vertical cross-sectional view of the curtain wall according to the present embodiment. [Figure 3] FIG. 2 is a horizontal cross-sectional view of the post fixing structure according to the present embodiment. [Figure 4] 1 is a vertical cross-sectional view of one aspect of a mullion fixing structure according to this embodiment. FIG. [Figure 5] A vertical cross-sectional view of another aspect of the post fixing structure related to this embodiment. [Figure 6] FIG. 2 is an enlarged horizontal cross-sectional view of the post fixing structure according to the present embodiment. [Figure 7] FIG. 2 is an exploded perspective view of the fixing structure of the mullion according to the present embodiment. [Figure 8] FIG. [Figure 9] FIG. 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 FIG. 1, the curtain wall 100 includes a frame 1 and a glass panel 4.

[0011] The frame body 1 comprises uprights 12 and crossbeams 11. The uprights 12 extend in the vertical direction. Multiple uprights 12 are arranged spaced apart in the left-right direction. The crossbeams 11 extend in the left-right direction. The crossbeams 11 connect a pair of uprights 12, 12 arranged spaced apart in the vertical direction. The four-sided frame body 1 is formed by the pair of uprights 12, 12 arranged spaced apart in the horizontal direction and the pair of crossbeams 11, 11 arranged spaced apart in the vertical direction.

[0012] The glass panel 4 is disposed inside the frame body 1, which is formed in a four-sided frame shape. The glass panel 4 is formed in a plate shape. The plate surface of the glass panel 4 faces the indoor / outdoor direction. The glass panel 4 corresponds to the panel in the claims. The panel is not limited to the glass panel 4, and may be an acrylic panel or a panel made of a material other than glass.

[0013] As shown in Figure 2, the upright 12 is fixed to the main body by upright fixing structures 2A and 2B. The upright 12, which is long in the vertical direction, is fixed at the location indicated by A by the fixing structure 2A shown in Figure 4. It is fixed at the location indicated by B by the fixing structure 2B shown in Figure 5. One second upright member 40 is fixed to the first upright member 20 by three brackets 30. The lower end of the second upright member 40 is fixed to the first upright member 20 by the fixing structure 2A. The upper part and the middle part in the vertical direction of the second upright member 40 are fixed to the first upright member 20 by the fixing structure 2B.

[0014] After explaining the fixing structure 2A, we will explain the fixing structure 2B. As shown in Figure 3, the fixing structure 2A for the upright includes a first upright member 20, a bracket 30, and a second upright member 40.

[0015] The first upright member 20 is a long member extending in the vertical direction. The length of the first upright member 20 is approximately the same as the length of the glass panel 4. The first upright member 20 is fixed to a frame such as a pillar or beam. The first upright member 20 is fixed to the frame with a fixing means such as a bolt. The first upright member 20 may be fixed to the frame directly or via a bracket or the like. The first upright member 20 is made of a metal material such as steel. The material from which the first upright member 20 is made can be set as appropriate. It is preferable that the strength of the material from which the first upright member 20 is made is stronger than the strength of the material from which the second upright member 40 is made.

[0016] As shown in Figs. 4 and 6, a liner 22 is disposed on the outdoor surface 20a of the first upright member 20 facing the outdoors. The liner 22 is formed in a plate shape. The plate surface of the liner 22 faces the indoor / outdoor direction. The liner 22 is formed from a metal material such as an aluminum alloy. The material for forming the liner 22 can be selected as appropriate.

[0017] 7, the liner 22 has mounting holes 22a that penetrate from indoors to outdoors. In the illustrated example, the mounting holes 22a are formed in two locations spaced apart in the vertical direction. The number and positions of the mounting holes 22a can be set as appropriate.

[0018] 6, the left-right length of the liner 22 is shorter than the left-right length of the outdoor surface 20a of the first upright member 20. The left-right length of the liner 22 is longer than the left-right length of the fixing portion 31 of the bracket 30, which will be described later. The left-right length of the liner 22 may be shorter than the left-right length of the fixing portion 31 of the bracket 30.

[0019] As shown in FIG. 4, the vertical length of the liner 22 is longer than the vertical length of a fixing portion 31 of a bracket 30, which will be described later.

[0020] The bracket 30 is disposed on the outdoor side of the first upright member 20 and on the outdoor side of the liner 22. The bracket 30 has a fixing portion 31 and a locking portion 33. The bracket 30 is made of a metal material such as an aluminum alloy. The material from which the bracket 30 is made can be selected as appropriate.

[0021] As shown in Fig. 7, the fixing part 31 is a substantially rectangular parallelepiped member. The fixing part 31 has mounting holes 31a formed therethrough in the indoor-outdoor direction. The mounting holes 31a are formed at positions corresponding to the mounting holes 22a of the liner 22. In the illustrated example, the mounting holes 31a are formed in two locations spaced apart in the vertical direction. The number and positions of the mounting holes 31a can be set as appropriate.

[0022] 4, bolts 24 are inserted from the outdoor side through mounting holes 31a of bracket 30 and mounting holes 22a of liner 22, and screwed to first upright member 20. Bracket 30 and liner 22 are fixed together by bolts 24. Liner 22 is disposed between first upright member 20 and surface 31b of fixing portion 31 of bracket 30 facing indoors.

[0023] As shown in FIG. 7, the locking portion 33 is formed integrally with the fixed portion 31 on the upper side thereof. The locking portion 33 has a support portion 34. The support portion 34 extends from the surface 31b of the fixed portion 31 toward the outdoor side. The support portion 34 is formed in a flat shape along a horizontal plane. The surface of the support portion 34 faces upward.

[0024] The locking portion 33 has a clamping portion 35. The clamping portion 35 extends upward from the outdoor end of the support portion 34. The clamping portion 35 is formed in a flat shape that extends along the up-down and left-right directions. The surface of the clamping portion 35 faces the indoor side.

[0025] 9, the upper end of the locking portion 33 has a first tapered portion 36. The first tapered portion 36 gradually slopes downward toward the indoor side. The lower end of the first tapered portion 36 is connected to the upper end of the clamping portion 35.

[0026] 8, both left and right ends of the upper end of the locking portion 33 have second tapered portions 37. The second tapered portions 37 are gradually inclined downward as they extend outward in the left-right direction.

[0027] As shown in FIG. 6, the second upright member 40 is disposed on the outdoor side of the first upright member 20. The second upright member 40 is a long member extending in the vertical direction. The length of the second upright member 40 is approximately the same as the length of the glass panel 4. The second upright member 40 is made of a metal material such as an aluminum alloy. The material for forming the second upright member 40 can be selected as appropriate.

[0028] The second upright member 40 has a connecting portion 41 , an indoor / outdoor plate portion 42 , and left and right plate portions 43 .

[0029] The connecting portion 41 has an indoor side plate portion 411, an outdoor side plate portion 412, and a pair of side plate portions 413, 413.

[0030] The indoor side plate portion 411 is formed in a plate shape. The plate surface of the indoor side plate portion 411 faces the indoor / outdoor direction. The indoor side plate portion 411 is arranged along the outdoor surface 20a of the first mullion member 20. The indoor side plate portion 411 is arranged so as to abut against the liner 22.

[0031] The outdoor side plate portion 412 is disposed on the outdoor side of the indoor side plate portion 411, facing the indoor side plate portion 411. The outdoor side plate portion 412 is formed in a plate shape. The plate surface of the outdoor side plate portion 412 faces the indoor / outdoor direction.

[0032] The pair of side plate portions 413, 413 respectively connect the left and right ends of the indoor side plate portion 411 and the left and right ends of the outdoor side plate portion 412. The side plate portions 413 are formed in a plate shape. The plate surfaces of the side plate portions 413 face in the left and right directions.

[0033] A rectangular tubular member is formed by the indoor side plate portion 411, the outdoor side plate portion 412, and the pair of side plate portions 413, 413. A hollow portion S1 extending in the vertical direction is formed inside the rectangular tubular member formed by the indoor side plate portion 411, the outdoor side plate portion 412, and the pair of side plate portions 413, 413.

[0034] The indoor / outdoor plate portion 42 extends to the outdoor side from the center in the left-right direction of the outdoor side plate portion 412. The indoor / outdoor plate portion 42 is formed in a plate shape. The plate surface of the indoor / outdoor plate portion 42 faces the left-right direction.

[0035] The left and right plate portions 43 extend to both sides in the left and right direction from the outdoor end of the indoor / outdoor plate portion 42. The left and right plate portions 43 are formed in a plate shape. The plate surface of the indoor / outdoor plate portion 42 faces the indoor / outdoor direction.

[0036] As shown in Figure 3, a glass mounting member 46 is fastened to the indoor / outdoor plate portion 42. The ends of the glass panel 4 are disposed between the glass mounting member 46 and the left and right plate portions 43 of the second upright member 40. A sealant 47 is provided between the glass panel 4 and the glass mounting member 46 and between the glass panel 4 and the left and right plate portions 43. The glass panel 4 is supported by the second upright member 40.

[0037] As shown in Fig. 7, the indoor side panel 411 has a locking hole 411a formed therethrough in the indoor-outdoor direction. The locking hole 411a is formed more inward than the left and right ends of the indoor side panel 411. The locking hole 411a is formed in a substantially rectangular shape when viewed from the indoor-outdoor direction. As shown in Fig. 4, the length L1 of the locking hole in the vertical direction is longer than the length L2 of the bracket 30 in the vertical direction.

[0038] An indoor-side portion 31c of the fixing portion 31 of the bracket 30 is disposed in the locking hole 411a. As shown in Fig. 6, the left-right length of the portion 31c of the bracket 30 is substantially the same as the left-right length of the locking hole 411a of the second upright member 40. As shown in Fig. 4, the portion 31d other than the portion 31c of the fixing portion 31 of the bracket 30 and the locking portion 33 are disposed in the hollow portion S1 of the second upright member 40.

[0039] The upper portion of the locking hole 411 a in the indoor side panel portion 411 of the second upright member 40 and the liner 22 are sandwiched between the outdoor surface 20 a of the first upright member 20 and the clamping portion 35 of the bracket 30 .

[0040] An upper edge 411b of the locking hole 411a of the second upright member 40 abuts on and is supported by the support portion 34 of the bracket 30.

[0041] The indoor side panel portion 411 of the second upright member 40 is locked to a locking portion 33 having a support portion 34 and a clamping portion 35. The first upright member 20 and the second upright member 40 are connected by a bracket 30.

[0042] Portion 31d and engagement portion 33 of fixing portion 31 of bracket 30 are hidden in hollow portion S1 of second upright member 40 and cannot be seen from the outside. Portion 31c of fixing portion 31 of bracket 30 is hidden by indoor side panel portion 411 of second upright member 40 and cannot be seen from the outside. All parts of bracket 30 are hidden by second upright member 40 and cannot be seen from the outside.

[0043] The fixing structure 2B will be described only in terms of the differences from the fixing structure 2A, and the same parts as those in the fixing structure 2A will be given the same reference numerals and will not be described again.

[0044] As shown in FIG. 5, in the fixing structure 2B, the upper edge 411b of the locking hole 411a of the second upright member 40 is supported without contacting the support portion 34 of the bracket 30. The upper edge 411b of the locking hole 411a of the second upright member 40 is positioned above the support portion 34 of the bracket 30 with a small gap. In the fixing structure 2B, the upper portion of the locking hole 411a in the indoor side panel portion 411 of the second upright member 40 is sandwiched between the outdoor surface 20a of the first upright member 20 and the clamping portion 35 of the bracket 30, thereby restricting the movement of the second upright member 40 in the indoor / outdoor direction. In the fixing structure 2B, the portion 31c of the bracket 30 is positioned in the locking hole 411a of the second upright member 40, thereby restricting the movement of the second upright member 40 in the left-right direction.

[0045] We will explain how to fix the post. The first upright member 20 is fixed to a frame such as a pillar or beam using fixing means. The liner 22 is placed on the outdoor surface 20a of the first upright member 20. The bracket 30 is placed on the outdoor side of the liner 22. The bolt 24 is inserted from the outdoor side through the mounting hole 31a of the bracket 30 and the mounting hole 22a of the liner 22 and screwed to the first upright member 20. The bracket 30 and liner 22 are fixed at once by the bolt 24.

[0046] The second upright member 40 is moved horizontally from the outdoor side toward the indoor side so that the bracket 30 passes through the locking hole 411a of the second upright member 40. When the indoor side panel portion 411 of the second upright member 40 hits the liner 22, the second upright member 40 is moved downward.

[0047] The upper portion of the locking hole 411a in the indoor side panel portion 411 of the second upright member 40 is sandwiched between the liner 22 and the clamping portion 35 of the bracket 30. At the lower end of the second upright member 40, the upper edge portion 411b of the locking hole 411a of the second upright member 40 abuts against and is supported by the support portion 34 of the bracket 30, thereby restricting downward movement of the second upright member 40.

[0048] In the curtain wall 100, the fixing portion 31 of the bracket 30 is fixed to the first upright member 20 fixed to the main body. By locking the second upright member 40 to the locking portion 33 of the bracket 30, the first upright member 20 and the second upright member 40 are connected, improving the ease of construction for fixing the uprights 12.

[0049] The indoor side panel portion 411 of the second upright member 40 is locked to the locking portion 33 of the bracket 30. Since the second upright member 40 can be locked at a position on the first upright member 20 side, the bracket 30 can be made smaller in the indoor / outdoor direction.

[0050] An upper edge 411b of a locking hole 411a formed in the indoor side panel 411 of the second upright member 40 is supported by the support portion 34 of the bracket 30. This makes it possible to restrict downward movement of the second upright member 40.

[0051] The vertical length L1 of the locking hole 411a of the second upright member 40 is longer than the vertical length L2 of the bracket 30. The second upright member 40 is moved horizontally indoors, the bracket 30 is inserted into the locking hole 411a, and then the second upright member 40 is moved downward. The second upright member 40 can be easily locked to the bracket 30.

[0052] The indoor side panel portion 411 of the second upright member 40 is sandwiched between the clamping portion 35 of the bracket 30 and the outdoor surface 20a of the first upright member 20. Movement of the second upright member 40 in the indoor / outdoor direction is restricted.

[0053] The first tapered portion 36 at the upper end of the locking portion 33 of the bracket 30 gradually slopes downward toward the indoor side. When the second upright member 40 is moved downward to lock onto the bracket 30, the surface facing the outdoors of the upper part of the locking hole 411a in the indoor side panel portion 411 of the second upright member 40 is prevented from hitting the bracket 30.

[0054] The second tapered portion 37 at the upper end of the racket locking portion 33 gradually slopes downward as it moves outward in the left-right direction. When the second upright member 40 is moved downward to lock onto the bracket 30, the portion above the locking hole 411a in the indoor side panel portion 411 of the second upright member 40 and on the left-right end side is prevented from hitting the bracket 30.

[0055] The bracket 30 is disposed inside the hollow portion S1 of the second upright member 40. Since the bracket 30 is not visible from the outside, the appearance can be improved.

[0056] The liner 22 disposed between the first upright member 20 and the bracket 30 can absorb deformation such as warping of the first upright member 20 and the bracket 30 themselves.

[0057] In at least one bracket 30, the upper edge 411b of the locking hole 411a of the second upright member 40 needs to be supported by the support portion 34 of the bracket 30. The load of the second upright member 40 should be supported at an appropriate location depending on the design of the curtain wall 100 and the main body, etc.

[0058] 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.

[0059] In the embodiment described above, the indoor side panel portion 411 of the second upright member 40 is locked to the locking portion 33 of the bracket 30, but this is not limited to this. Portions other than the indoor side panel portion 411, such as the outdoor side panel portion 412 and the side panel portion 413 of the second upright member 40, may also be locked to the locking portion 33 of the bracket 30.

[0060] The upper end of the locking portion 33 of the bracket 30 has the first tapered portion 36 and the second tapered portion 37, but is not limited to this. The upper end of the locking portion 33 of the bracket 30 does not necessarily have to have the first tapered portion 36 and the second tapered portion 37.

[0061] Although the liner 22 is disposed between the first upright member 20 and the bracket 30, the present invention is not limited to this. The liner 22 does not necessarily have to be disposed.

[0062] The lower end of the second upright member 40 is fixed to the first upright member 20 by the fixing structure 2A, but this is not limited to this. The location where the second upright member 40 is fixed by the fixing structure 2A can be set appropriately to the middle in the vertical direction of the second upright member 40, the upper end, or the like.

[0063] The present disclosure includes the following aspects.

[0064] (1) A fixing structure for a support comprising a first support member fixed to a main body, a second support member arranged on the outdoor side of the first support member, and a bracket connecting the first support member and the second support member, the bracket having a fixing portion fixed to the first support member and a locking portion locking the second support member.

[0065] (2) The second upright member has an indoor side panel portion arranged along the outdoor surface of the first upright member, and the indoor side panel portion is engaged with the engaging portion, in a fixing structure of the upright described in (1).

[0066] (3) A fixing structure of the upright described in (2) above, in which a locking hole penetrating from the indoor side panel to the outside is formed, and the locking portion has a support portion supporting the upper edge portion of the locking hole.

[0067] (4) A fixing structure for a post as described in (3) above, wherein the vertical length of the locking hole is longer than the vertical length of the bracket.

[0068] (5) A fixing structure for a post described in (3) or (4), wherein the engaging portion has a clamping portion that clamps the indoor side panel portion between the outdoor surface of the first post member.

[0069] (6) A fixing structure for a post described in any one of (1) to (5), in which the upper end of the engaging portion has a first tapered portion that gradually slopes downward as it approaches the indoor side.

[0070] (7) A fixing structure for a post described in any one of (1) to (6), in which the upper end of the engaging portion has a second tapered portion that gradually slopes downward as it moves outward in the left-right direction.

[0071] (8) A fixing structure for a support described in any one of (1) to (7), wherein the second support member has a hollow portion extending in the vertical direction, and the bracket is positioned inside the hollow portion.

[0072] (9) A fixing structure for a support as described in any one of (1) to (8), comprising a liner arranged between the first support member and the bracket.

[0073] (10) A fixing structure for a support as described in (3) above, which includes a plurality of brackets, and the support portion of at least one of the plurality of brackets supports the upper edge portion of the locking hole, and the support portion of other brackets of the plurality of brackets does not support the upper edge portion of the locking hole.

[0074] (11) A curtain wall comprising a support structure for a support member according to any one of (1) to (10) and a panel supported by the second support member.

[0075] (12) A method for fixing a support, which includes fixing a first support member to a main body, fixing the fixing portion of a bracket to the first support member, engaging a second support member to the engaging portion of the bracket, and installing the second support member on the outdoor side of the first support member.

[0076] (13) A method for fixing a support as described in (12) above, in which the upper edge of a locking hole formed in the indoor side panel portion of the second support member arranged along the outdoor surface of the first support member is supported by a support portion of the locking portion. [Explanation of symbols]

[0077] 2A, 2B fixing structure, 12 upright, 20 first upright member, 22 liner, 30 bracket, 31 fixing portion, 33 locking portion, 34 support portion, 35 clamping portion, 36 first tapered portion, 37 second tapered portion, 40 second upright member, 100 curtain wall, 411 indoor side panel portion, 411a locking hole, S1 hollow portion

Claims

1. a first upright member fixed to the frame; a second upright member disposed on the outdoor side of the first upright member; a bracket connecting the first upright member and the second upright member, The bracket is a fixing portion fixed to the first upright member; and a locking portion for locking the second upright member.

2. the second upright member has an indoor side panel portion disposed along the outdoor surface of the first upright member, The structure for fixing a mullion as claimed in claim 1 , wherein the indoor side panel portion is engaged with the engaging portion.

3. The indoor side panel portion is formed with a locking hole penetrating in the indoor / outdoor direction, The structure for fixing a post according to claim 2 , wherein the locking portion has a support portion for supporting an upper edge of the locking hole.

4. The structure for fixing a post according to claim 3, wherein the length of the locking hole in the vertical direction is longer than the length of the bracket in the vertical direction.

5. The locking portion is 5. A fixing structure for a post according to claim 3 or 4, further comprising a clamping portion for clamping the indoor side panel portion between the outdoor surface of the first post member and the clamping portion.

6. 3. The mullion fixing structure according to claim 1, wherein the upper end of the engaging portion has a first tapered portion that gradually slopes downward toward the indoor side.

7. 3. The structure for fixing a mullions according to claim 1, wherein the upper end of the engaging portion has a second tapered portion that gradually slopes downward as it extends outward in the left-right direction.

8. The second upright member has a hollow portion extending in the vertical direction, The mullion fixing structure according to claim 1 or 2, wherein the bracket is disposed inside the hollow portion.

9. The structure for fixing a support as claimed in claim 1 or 2, further comprising a liner disposed between the first support member and the bracket.

10. A plurality of the brackets are provided, the support portion of at least one of the brackets supports an upper edge portion of the locking hole; The structure for fixing a post according to claim 3 , wherein the support portions of the other brackets among the plurality of brackets do not support the upper edge portions of the locking holes.

11. The mullion fixing structure according to claim 1 or 2; A curtain wall comprising: a panel supported by the second upright member.

12. The first upright member is fixed to the main body; a fixing portion of the bracket is fixed to the first upright member; A method for fixing a post, in which a second post member is engaged with the engaging portion of the bracket, and the second post member is installed on the outdoor side of the first post member.

13. A method for fixing a support as described in claim 12, in which the upper edge of a locking hole formed in the indoor side panel portion of the second support member arranged along the outdoor surface of the first support member is supported by the support portion of the locking portion.

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