Curtain wall unit

Abstract

To easily improve the strength of a curtain wall unit against load while suppressing a decrease in the temperature of a vertical frame that holds a panel body between itself and a batten.SOLUTION: A curtain wall unit 2 includes a vertical frame 6 that holds a panel body 2A on the indoor side, a batten 20 that holds the panel body 2A on the outdoor side, an attachment 50 that is attached to the vertical frame 6 with insulating materials 80, 81 interposed between the vertical frame 6 and itself and has the batten 20 attached thereto, and a connecting part 70 that connects the attachment 50 to the vertical frame 6 and restricts movement of the attachment 50 in a direction away from the vertical frame 6.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a curtain wall unit that holds a panel body with a vertical frame and a batten. [Background technology]

[0002] In a curtain wall unit, a panel body is placed in an opening of a frame body, and a batten is attached to the vertical frame of the frame. The batten is placed on the outdoor side of the panel body, and the panel body is held between the vertical frame and the batten. In such a curtain wall unit, heat is transferred between the batten and the vertical frame, and depending on the outdoor air temperature, the temperature of the vertical frame may drop due to heat transfer with the batten. Therefore, a conventional curtain wall unit is known in which a first frame portion and a second frame portion are provided on the vertical frame, and a batten is attached to the second frame portion (see Patent Document 1).

[0003] In the conventional curtain wall unit described in Patent Document 1, a first frame holds the panel body on the indoor side of the panel body, and an insulating material is provided between the first and second frame parts. The insulating material inhibits heat transfer between the second and first frame parts, thereby suppressing a drop in the temperature of the first frame part. However, in conventional curtain wall units, in order to further cope with the load acting on the panel body, it is necessary to, for example, increase the number of bolts attaching the second frame part to the first frame part or increase the thickness of the second frame part. However, from the perspective of manufacturability of curtain wall units, it is desired to more easily improve the strength of curtain wall units against loads. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7358578 Summary of the Invention [Problem to be solved by the invention]

[0005] The present invention has been developed in consideration of the above-mentioned conventional problems, and its purpose is to easily improve the load-bearing strength of the curtain wall unit while suppressing a drop in the temperature of the vertical frame that holds the panel body between it and the batten. [Means for solving the problem]

[0006] The present invention provides a vertical frame that holds the panel body on the indoor side; A ledge that holds the panel body on the outdoor side; an attachment attached to the vertical frame with an insulating material interposed between the attachment and the vertical frame, and to which the batten is attached; a connecting part that connects the attachment to the vertical frame and restricts movement of the attachment in a direction away from the vertical frame; It is a curtain wall unit equipped with [Effects of the Invention]

[0007] According to the present invention, it is possible to easily improve the strength of the curtain wall unit against load while suppressing a decrease in the temperature of the vertical frame that holds the panel body between it and the batten. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a front view showing the curtain wall of this embodiment. [Figure 2] FIG. 2 is a vertical cross-sectional view showing the curtain wall of the present embodiment. [Figure 3] FIG. 2 is a cross-sectional view showing the curtain wall of the present embodiment. [Figure 4] FIG. 2 is a cross-sectional view showing the adjacent portions of two curtain wall units on the left and right sides of this embodiment. [Figure 5] FIG. 2 is a cross-sectional view showing the vertical frame side portions of curtain wall units adjacent to each other in the left-right direction in this embodiment. [Figure 6] This is a cross-sectional view showing the vertical frame, batten, bracket, attachment, and connecting parts of this embodiment in exploded form. DETAILED DESCRIPTION OF THE INVENTION

[0009] An embodiment of the curtain wall unit of the present invention will be described with reference to the drawings. The curtain wall unit of this embodiment is used for the curtain wall of a building and is installed on the exterior wall of the building. Multiple curtain wall units are combined with each other to form part of the curtain wall. The curtain wall units and curtain wall are installed on the exterior wall of the building, between the interior (indoor) and exterior (outdoor) of the building, to form the exterior wall of the building.

[0010] FIG. 1 is a front view showing the curtain wall 1 of this embodiment, showing the curtain wall 1 and curtain wall unit 2 installed in a building 10 as viewed from the outside of the room. FIG. 2 is a longitudinal cross-sectional view showing the curtain wall 1 of this embodiment, showing the curtain wall 1 and a part of the building 10 cut along line X1-X1 in FIG. 1. FIG. 3 is a transverse cross-sectional view showing the curtain wall 1 of this embodiment, showing the curtain wall 1 cut along line X2-X2 in FIG. 1.

[0011] As shown in the figure, the curtain wall 1 comprises a plurality of curtain wall units 2 installed side by side on a building 10. The curtain wall units 2 are panel units that make up the curtain wall 1, and are pre-assembled before installation on the building 10. The curtain wall 1 and the curtain wall units 2 are installed on the exterior wall 11 of the building 10, thereby forming the exterior wall 11 of the building 10. The curtain wall units 2 are installed side by side in the vertical direction R and the horizontal direction S, and are connected to each other with adjacent curtain wall units 2. The curtain wall 1 and the curtain wall units 2 are arranged on the outdoor side of the skeleton 12 of the building 10, and are attached to the skeleton 12 of the building 10.

[0012] When the curtain wall 1 and the curtain wall unit 2 installed in the building 10 are viewed from the front, the up-down direction is the up-down direction R, and the left-right direction is the left-right direction S. In FIG. 1, the up-down direction R is the vertical direction, and the left-right direction S is the horizontal direction. The indoor-outdoor direction T is the indoor-outdoor direction (indoor-outdoor direction) of the curtain wall 1 and the curtain wall unit 2 installed in the building 10. Furthermore, the indoor-outdoor direction T is the front-to-back direction (depth direction) and the thickness direction of the curtain wall 1 and the curtain wall unit 2 when viewed from the front of the curtain wall 1 and the curtain wall unit 2 installed in the building 10, and in FIG. 3 is the horizontal direction perpendicular to the left-to-right direction S. Thus, the directions related to the curtain wall 1 and the curtain wall unit 2 are specified as directions when they are installed in the building 10. Furthermore, the indoor side and the outdoor side of the curtain wall 1 and the curtain wall unit 2 refer to the indoor side and the outdoor side when they are installed in the building 10.

[0013] The curtain wall unit 2 comprises two upper and lower panel bodies 2A and a frame body 3 surrounding the panel bodies 2A. The panel body 2A is a rectangular glass panel (for example, plate glass, double glazing, or laminated glass) that is placed in an opening 3A of the frame body 3 and is held by the frame body 3. The panel body 2A is also a fixed panel that is fixed to the rectangular opening 3A of the frame body 3 to close the opening 3A of the frame body 3. The frame body 3 is a rectangular opening frame that forms the opening 3A, and is placed on the outdoor side of the skeleton 12 of the building 10 and attached to the skeleton 12 of the building 10. The frame bodies 3 of the multiple curtain wall units 2 are each connected to the frame bodies 3 of adjacent curtain wall units 2.

[0014] The frame body 3 has four frames 4 to 6 (an upper frame 4, a lower frame 5, and a pair of vertical frames 6) and a crossbeam 7 that are combined with each other, and the frames 4 to 6 and the crossbeam 7 form two openings 3A, one at the top and one at the bottom. The frames 4 to 6 and the crossbeam 7 of the frame body 3 are frame materials (frame components) that make up the frame body 3, and each is made of a metal (for example, aluminum alloy) shaped member formed by extrusion molding.

[0015] The upper and lower frames 4 and 5 are upper and lower horizontal frames located at the top and bottom of the frame body 3, extending horizontally (left-right direction S). The pair of vertical frames 6 are side frames located on the left and right sides of the frame body 3, extending vertically (up-down direction R). The crossbeam 7 is a horizontal frame (middle frame) located midway in the up-down direction R of the frame body 3, extending horizontally. The crossbeam 7 is located between the upper and lower frames 4 and 5 and connected to the pair of vertical frames 6. The ends of the upper frame 4, the lower frame 5, and the pair of vertical frames 6 are connected to each other, and both ends of the crossbeam 7 are connected to the pair of vertical frames 6, thereby framing the frames 4 to 6 and the crossbeam 7. The crossbeam 7 is installed across the pair of vertical frames 6 and divides the opening 3A of the frame body 3 into upper and lower sections. The panel body 2A is fitted into the frame body 3 and is held by the frames 4 to 6 and the crossbeam 7 of the frame body 3, thereby being fixed to the frame body 3.

[0016] FIG. 4 is a cross-sectional view showing adjacent portions of two curtain wall units 2 on the left and right sides of this embodiment, and shows an enlarged view of a part of FIG. As shown in the figure, a plurality of curtain wall units 2 and frames 3 are installed side by side in the left-right direction S on the exterior wall 11 of a building 10. The left and right curtain wall units 2 and frames 3 installed side by side in the left-right direction S are adjacent to each other in the left-right direction S. In the left and right curtain wall units 2 adjacent to each other in the left-right direction S, the vertical frame 6 of one curtain wall unit 2 and the vertical frame 6 of the other curtain wall unit 2 are arranged adjacent to each other on the left and right.

[0017] The vertical frames 6 of the left and right curtain wall units 2 are arranged at an interval in the left-right direction S, adjacent to each other in the left-right direction S, and facing each other in the left-right direction S. Furthermore, the vertical frames 6 are arranged spaced apart in the left-right direction S from other vertical frames 6 adjacent to them in the left-right direction S (vertical frames 6 of other curtain wall units 2 installed side by side in the left-right direction S). In each of the curtain wall units 2, the vertical frames 6 are located on the indoor side of the panel body 2A, and the panel body 2A is arranged on the outdoor side of the vertical frames 6.

[0018] The curtain wall unit 2 and the frame body 3 include a vertical frame 6 that holds the panel body 2A on the indoor side, a batten 20 that holds the panel body 2A on the outdoor side, an exterior material 30 that is provided on the outdoor side of the panel body 2A, a bracket 40 that supports the exterior material 30, an attachment 50 attached to the vertical frame 6, and a connecting part 70 that connects the attachment 50 to the vertical frame 6.

[0019] The batten 20 is a vertical batten extending in the vertical direction and is located on the outdoor side of the vertical frame 6. The panel body 2A (the vertical edge portion of the panel body 2A) is arranged between the vertical frame 6 and the batten 20 in the indoor-outdoor direction T, and is held between the vertical frame 6 and the batten 20. The attachment 50 is an attachment material (vertical frame attachment) attached to the vertical frame 6. The batten 20 is attached to and held by the attachment 50. The batten 20 and the attachment 50 extend in the longitudinal direction of the vertical frame 6, and are arranged alongside the vertical frame 6 over the entire longitudinal direction of the vertical frame 6. The longitudinal direction of the vertical frame 6 is the up-down direction R.

[0020] When the curtain wall units 2 are installed side by side on the building 10 (exterior wall 11), the curtain wall units 2 adjacent in the left-right direction S form joints M between the battens 20 and attachments 50 of each of the curtain wall units 2 adjacent in the left-right direction S. The joints M are gap spaces (joint spaces) located between the battens 20 and attachments 50 of the adjacent curtain wall units 2.

[0021] The battens 20 and attachments 50 of adjacent curtain wall units 2 form a joint M between them and face each other across the joint M in the left-right direction S. The joint M is a vertical joint extending in the longitudinal direction (up-down direction R) of the battens 20 and attachments 50, and is formed along the battens 20 and attachments 50. The joint M is closed at a location between adjacent attachments 50 at a position on the indoor side of the panel body 2A, and is open toward the outdoor side of the curtain wall unit 2 at a location between adjacent battens 20 at a position on the outdoor side of the panel body 2A.

[0022] The bracket 40, together with the batten 20, is attached to the attachment 50 and is held by the attachment 50. The bracket 40 is a support material and protrudes from the attachment 50 toward the outside of the room. Here, the bracket 40 is attached to the attachment 50 of only one of the curtain wall units 2 adjacent in the left-right direction S, and is arranged in the joint M. The bracket 40 also protrudes toward the outside of the room from the joint M, and is arranged up to the outside of the batten 20 and joint M adjacent in the left-right direction S. The brackets 40 are provided at multiple locations spaced apart in the longitudinal direction of the attachment 50, and protrude from the attachment 50 to a position further outside the room than the panel body 2A.

[0023] The exterior material 30 is a decorative material (here, a vertical fin) that is fixed to the brackets 40 and extends vertically. The exterior material 30 also protrudes from the brackets 40 toward the exterior side of the room, and is arranged on the exterior side of the curtain wall units 2 and battens 20 that are adjacent in the left-right direction S. The exterior material 30 is fixed to and supported by multiple brackets 40.

[0024] The bracket 40 has a base 41 that is attached to the attachment 50, and a fixing surface 42 to which the exterior material 30 is fixed. The base 41 is the indoor-side portion of the bracket 40 that includes the indoor-side end thereof, and the fixing surface 42 is the outdoor-side end of the bracket 40. The exterior material 30 abuts against the fixing surface 42 of the bracket 40 from the outdoor side, and is fixed to the outdoor side of the fixing surface 42.

[0025] Fig. 5 is a cross-sectional view showing the vertical frame 6 side portions of curtain wall units 2 adjacent in the left-right direction S in this embodiment. Fig. 6 is a cross-sectional view showing an exploded view of the vertical frame 6, batten 20, bracket 40, attachment 50, and connecting part 70 in this embodiment. In Figs. 5 and 6, the outdoor side portion of the bracket 40 and the exterior material 30 are omitted.

[0026] As shown in the figure, the vertical frame 6 and each of its parts 60-65, 68 are located on the indoor side of the panel body 2A, and the vertical frame 6 is arranged facing the indoor side from the panel body 2A. The attachment 50 is arranged on the joint M side of the vertical frame 6 and is attached to the vertical frame 6 at a position on the indoor side of the panel body 2A. The base 41 of the bracket 40 is arranged in the joint M between the attachments 50 of the curtain wall units 2 adjacent in the left-right direction S, and is in contact with one of the attachments 50 adjacent in the left-right direction S and is spaced apart in the left-right direction S from the other attachment 50.

[0027] The curtain wall unit 2 is equipped with insulating materials 80, 81 (first insulating material 80, second insulating material 81) provided between the vertical frame 6 and the attachment 50. The attachment 50 is attached to the vertical frame 6 at a position closer to the room than the panel body 2A, with the insulating materials 80, 81 interposed between it and the vertical frame 6, and protrudes from the vertical frame 6 toward the outside of the room. The vertical frame 6, the insulating materials 80, 81, and the attachment 50 overlap, and the insulating materials 80, 81 come into contact with the vertical frame 6 and the attachment 50. The insulating materials 80, 81 allow the vertical frame 6 and the attachment 50 to be spaced apart and not in contact with each other throughout, forming a gap between them.

[0028] The insulating materials 80, 81 are insulating materials (here, insulating rubber, which is an elastic body) that have a heat insulating function, and the entire attachment 50 is disposed apart from the vertical frame 6. The insulating materials 80, 81 are solid insulating materials (solid insulating materials) and are provided over the entire longitudinal direction of the vertical frame 6 or at multiple locations in the longitudinal direction of the vertical frame 6. Here, the two insulating materials 80, 81 are each provided over the entire longitudinal direction of the vertical frame 6 and are sandwiched between the vertical frame 6 and the attachment 50 at a position closer to the indoor side than the panel body 2A. The insulating materials 80, 81 are also provided at two different locations in the indoor-outdoor direction T in the location (gap) between the vertical frame 6 and the attachment 50.

[0029] The first insulating material 80 and the second insulating material 81 are provided spaced apart on the indoor and outdoor sides between the vertical frame 6 and the attachment 50. The first insulating material 80 is the indoor-side insulating material of the two insulating materials 80, 81, and is located closer to the indoor side than the second insulating material 81, sandwiched between the indoor-side end of the attachment 50 and the vertical frame 6. The second insulating material 81 is the outdoor-side insulating material of the two insulating materials 80, 81, and is located closer to the outdoor side than the first insulating material 80, and is sandwiched between the outdoor-side end of the vertical frame 6 and the attachment 50. The vertical frame 6 and the attachment 50 are disposed spaced apart between the first insulating material 80 and the second insulating material 81, forming a space 82 between them. The attachment 50 is attached to the vertical frame 6 via a first insulating material 80 and a second insulating material 81, and the first insulating material 80 and the second insulating material 81 seal the space 82 between the vertical frame 6 and the attachment 50.

[0030] A heat insulating material 83 is provided between the first insulating material 80 and the second insulating material 81 between the vertical frame 6 and the attachment 50. Here, the heat insulating material 83 is an air layer interposed between the vertical frame 6 and the attachment 50, and is contained in the space 82 between the vertical frame 6 and the attachment 50. The air layer is a gaseous insulating material that has a heat insulating function. The heat insulating material 83 is also a sealed air layer, and is sealed in the space 82 between the vertical frame 6 and the attachment 50 by the first insulating material 80 and the second insulating material 81.

[0031] The vertical frame 6 has an end wall portion 60 on the outdoor side, an indoor-side retaining portion 61 that retains the panel body 2A on the indoor side, a recessed portion 62 that connects to the end wall portion 60, an opposing wall portion 63 that faces the attachment 50, two rows of fitting walls 64, and a retaining groove portion 65 located on the outdoor side of the opposing wall portion 63. The end wall portion 60 is the outdoor-side end of the vertical frame 6, and the indoor-side retaining portion 61 is part of the end wall portion 60. The end wall portion 60 and the indoor-side retaining portion 61 are located at the outdoor-side end of the vertical frame 6 and are arranged along the viewing direction (left-right direction S) of the vertical frame 6. The indoor-side retaining portion 61 is located on the indoor side of the panel body 2A (the indoor side of the panel body 2A) and faces the panel body 2A in the indoor-outdoor direction T. A gasket 66 is sandwiched between the indoor-side retaining portion 61 and the panel body 2A.

[0032] The recessed portion 62 of the vertical frame 6 is located on the indoor side of the end wall portion 60 (indoor-side holding portion 61), and is arranged along the projection direction (indoor-outdoor direction T) of the vertical frame 6 between the end wall portion 60 and the indoor-side end portion of the vertical frame 6. The facing wall portion 63 is an intermediate wall portion located in the middle of the vertical frame 6 in the indoor-outdoor direction T, and protrudes from the recessed portion 62 in the left-right direction S, and is arranged along the projection direction of the vertical frame 6. The facing wall portion 63 is located on the indoor side of the end wall portion 60, and is arranged spaced apart from the end wall portion 60 on the indoor side. The end wall portion 60 and the facing wall portion 63 face each other in the indoor-outdoor direction T, with the attachment 50 sandwiched between them. The facing wall portion 63 is located on the indoor side of the attachment 50, and is arranged facing the attachment 50 in the indoor-outdoor direction T.

[0033] The two rows of mating wall portions 64 of the vertical frame 6 are located on the indoor side of the attachment 50 and the opposing wall portion 63, are spaced apart in the indoor-outdoor direction T, and are arranged along the viewing direction of the vertical frame 6. Adjacent curtain wall units 2 in the left-right direction S have their two rows of mating wall portions 64 mated together to form an equal-pressure space 67 between their vertical frames 6. The equal-pressure space 67 is a space that is equal in pressure to the air pressure outside the room (outside air), and communicates with the outdoors. The equal-pressure space 67 is formed between the two rows of mating wall portions 64 of adjacent curtain wall units 2, and is located on the indoor side of the attachment 50, joint M, and opposing wall portion 63.

[0034] The attachment 50 and the insulating materials 80, 81 are located on the outdoor side of the equal-pressure space 67. The insulating materials 80, 81 are interposed between the portion of the vertical frame 6 that is outdoor side of the equal-pressure space 67 and the portion of the attachment 50 that is indoor side of the panel body 2A. The attachment 50 is attached to the indoor side of the panel body 2A, with the insulating materials 80, 81 interposed between the portion of the vertical frame 6 that is outdoor side of the equal-pressure space 67. The retaining groove portion 65 of the vertical frame 6 is provided at the corner where the projection portion 62 and the opposing wall portion 63 of the vertical frame 6 intersect, and is arranged facing the outdoor side. The retaining groove portion 65 is formed in a concave shape (groove shape) that is open toward the outdoor side and the attachment 50, and extends in the longitudinal direction of the vertical frame 6.

[0035] The first insulating material 80 is attached to the attachment 50 and is positioned inside the retaining groove 65 of the vertical frame 6. The first insulating material 80 fits into and is engaged with the retaining groove 65. The vertical frame 6 holds the first insulating material 80 by the retaining groove 65, and also holds the attachment 50 via the first insulating material 80. The first insulating material 80 is sandwiched between the retaining groove 65 of the vertical frame 6 and the attachment 50, and the second insulating material 81 is sandwiched between the end wall portion 60 of the vertical frame 6 and the attachment 50.

[0036] When a force directed indoors in the indoor-outdoor direction T acts on the panel body 2A, the indoor-side retaining portion 61 of the vertical frame 6 receives the load directed indoors from the panel body 2A via the gasket 66, and supports the panel body 2A. On the other hand, when a force directed outdoors in the indoor-outdoor direction T acts on the attachment 50 from the panel body 2A via the batten 20, the end wall portion 60, including the indoor-side retaining portion 61 of the vertical frame 6, receives the load directed outdoors from the attachment 50 via the second insulating material 81, and supports the attachment 50, the batten 20, and the panel body 2A.

[0037] Wind load is a load that the curtain wall unit 2 receives due to wind. When wind blows against the curtain wall unit 2, a wind load acts on the curtain wall unit 2. For example, when wind blows toward the panel body 2A, the wind load acts on the panel body 2A, and a load acts from the panel body 2A to the attachment 50 via the batten 20. When wind blows toward the exterior material 30, the wind load acts on the exterior material 30, and a load acts from the exterior material 30 to the attachment 50 via the bracket 40. In response to such loads, the vertical frame 6 receives the load from the attachment 50 via the first insulating material 80 through the retaining groove 65, and receives the load from the attachment 50 via the second insulating material 81 through the end wall 60. The vertical frame 6 receives the load via the retaining groove 65 and the end wall 60, and supports the attachment 50, the batten 20, the panel body 2A, the bracket 40, and the exterior material 30.

[0038] The attachment 50 has an indoor side portion 51 arranged on the joint M side of the vertical frame 6, and a protruding wall portion 52 connected to the indoor side portion 51. The indoor side portion 51 is the portion of the attachment 50 located on the indoor side, and the protruding wall portion 52 is the portion of the attachment 50 located on the outdoor side (outdoor side portion). The indoor side portion 51 is a hollow portion (indoor side hollow portion) formed in a hollow shape, and is arranged between the end wall portion 60 and the opposing wall portion 63 of the vertical frame 6. The protruding wall portion 52 is a wall portion located on the outdoor side of the indoor side portion 51, and is arranged along the indoor-outdoor direction T. The attachment 50 and the protruding wall portion 52 extend from a position on the indoor side of the end wall portion 60 of the vertical frame 6 to a position on the outdoor side, and are arranged on the joint M side of the panel body 2A.

[0039] The attachment 50 has an indoor-side wall portion 53, a protrusion 54, an outdoor-side wall portion 55, a fixed wall portion 56, and a locking portion 57 provided on the indoor-side portion 51, and also has a locking protrusion 58 provided on the protruding wall portion 52. The indoor-side wall portion 53 is a wall portion of the attachment 50 and the indoor-side portion 51 located on the indoor side, and is located on the outdoor side of the opposing wall portion 63 of the vertical frame 6. The indoor-side wall portion 53 is spaced outdoor from the opposing wall portion 63 and disposed opposite the opposing wall portion 63 in the indoor-outdoor direction T. The protrusion 54 protrudes indoors from the indoor-side wall portion 53 and the indoor-side portion 51 and disposed opposite the retaining groove portion 65 of the vertical frame 6 in the indoor-outdoor direction T. The protrusion 54 is located on the inside of the retaining groove portion 65 and spaced from the inner surface of the retaining groove portion 65.

[0040] The curtain wall unit 2 is equipped with a watertight material 84 attached between the vertical frame 6 and the attachment 50. The watertight material 84 is an elastically deformable watertight material that is located on the indoor side of the joint M and the outdoor side of the equal-pressure space 67, and extends in the longitudinal direction of the vertical frame 6 and the attachment 50. The watertight material 84 is attached by being sandwiched between the opposing wall portion 63 of the vertical frame 6 and the indoor side portion 51 (indoor side wall portion 53) of the attachment 50, and protrudes from the vertical frame 6 and the attachment 50 toward the joint M side.

[0041] When the curtain wall units 2 are installed side by side in the left-right direction S, the watertight materials 84 of curtain wall units 2 adjacent in the left-right direction S are arranged in opposing positions in the left-right direction S at a position on the outdoor side of the equal-pressure space 67 and abut against each other. The watertight materials 84 also seal the areas between the attachments 50 of the curtain wall units 2 adjacent in the left-right direction S, and seal the indoor-side areas of the joints M. The watertight materials 84 seal the joints M at a position on the indoor side of the panel body 2A, thereby making it waterproof. The joints M are partitioned and closed by the watertight materials 84 at the positions between the attachments 50.

[0042] The indoor side wall portion 53 and the outdoor side wall portion 55 of the attachment 50 are respectively arranged along the left-right direction S, spaced apart from each other in the indoor-outdoor direction T, and facing each other in the indoor-outdoor direction T. The outdoor side wall portion 55 is a wall portion located on the outdoor side of the indoor side portion 51, and is located on the outdoor side of the indoor side wall portion 53 and on the indoor side of the end wall portion 60 of the vertical frame 6. The outdoor side wall portion 55 is spaced apart from the end wall portion 60 toward the indoor side, and is arranged opposite the end wall portion 60 in the indoor-outdoor direction T.

[0043] The first insulating material 80 is attached to the indoor side part 51 (here, the protrusion part 54) of the attachment 50, and is sandwiched between the indoor side part 51 and the retaining groove part 65 of the vertical frame 6. The second insulating material 81 is sandwiched between the indoor side part 51 (here, the outdoor side wall part 55) of the attachment 50 and the end wall part 60 of the vertical frame 6, and between the protruding wall part 52 of the attachment 50 and the end wall part 60 of the vertical frame 6. A space 82 is formed between the recessed part 62 of the vertical frame 6 and the indoor side part 51 of the attachment 50, and a heat insulating material 83 is provided therein.

[0044] The bracket 40 is engaged with two locking portions 57 of the attachment 50 and fixed to the fixed wall portion 56 of the attachment 50. The fixed wall portion 56 is a wall portion located between the indoor-side wall portion 53 and the outdoor-side wall portion 55 of the indoor-side portion 51 and is arranged along the indoor-outdoor direction T. The locking portion 57 is a hook portion bent toward the outdoor side and is located on the joint M side of the fixed wall portion 56. The two locking portions 57 are spaced apart from each other in the indoor-outdoor direction T, and the fixed wall portion 56 is located between the two locking portions 57. The protruding wall portion 52 of the attachment 50 protrudes toward the outdoor side from the indoor-side portion 51 and the outdoor-side wall portion 55 and is arranged on a side of the panel body 2A in the left-right direction S. The locking projection 58 is formed on the protruding wall portion 52 and is located indoors relative to the panel body 2A, protruding toward the indoor side.

[0045] The ridge 20 has an outdoor holding portion 21 that holds the panel body 2A on the outdoor side, an attachment piece 22 that protrudes indoors from the outdoor holding portion 21, and an interlocking piece 23 provided on the attachment piece 22. The outdoor holding portion 21 is located on the outdoor side of the panel body 2A (the outdoor surface of the panel body 2A), faces the panel body 2A in the indoor-outdoor direction T, and is arranged along the viewing direction of the vertical frame 6. A gasket 24 is sandwiched between the outdoor holding portion 21 and the panel body 2A. The panel body 2A is arranged between the indoor-indoor holding portion 61 of the vertical frame 6 and the outdoor holding portion 21 of the ridge 20 in the indoor-outdoor direction T, and is held between the indoor-indoor holding portion 61 of the vertical frame 6 and the outdoor holding portion 21 of the ridge 20.

[0046] The mounting piece 22 of the ledge 20 is located on the side of the joint M, which is to the side of the protruding wall portion 52 of the attachment 50, and is arranged along the indoor-outdoor direction T. The interlocking piece 23 is a hook portion that bends toward the outside of the room, and is provided at the indoor-side end of the mounting piece 22. The interlocking piece 23 is hooked onto the interlocking protrusion 58 of the attachment 50 from the inside of the room, and is interlocked with the interlocking protrusion 58. The mounting piece 22 and the ledge 20 are attached to the protruding wall portion 52 and the attachment 50 by the interlocking piece 23 engaging with the interlocking protrusion 58.

[0047] The bracket 40 has two latched portions 43 provided on the base 41. The two latched portions 43 are hook portions that bend toward the inside of the room and are spaced apart from each other in the indoor-outdoor direction T. The latched portions 43 are hooked onto latching portions 57 of the attachment 50 from the outside of the room, and the latched portions 43 and the bracket 40 are latched to the latching portions 57. In this state, the bracket 40 is fixed to the attachment 50 at the base 41 by a fastener 8. The fastener 8 consists of a bolt 8A and a back plate 8B.

[0048] The fixed wall portion 56 of the attachment 50 is located between the base 41 of the bracket 40 and the back plate 8B. A bolt 8A is inserted from the joint M side of the base 41 through a through-hole formed in each of the base 41 and the fixed wall portion 56, and is screwed into a screw hole formed in the back plate 8B, thereby attaching the attachment to the back plate 8B. The base 41 and bracket 40 are fixed to the fixed wall portion 56 and attachment 50 by the fastener 8, and are attached to the indoor side portion 51 and attachment 50 by the engagement of the locked portion 43 with the locking portion 57 and the fixing of the base 41 to the fixed wall portion 56.

[0049] The connecting part 70 is a restricting part that restricts movement of the attachment 50 and is located on the indoor side of the panel body 2A and the outdoor side of the end wall portion 60 of the vertical frame 6, and is disposed between the panel body 2A and the end wall portion 60 of the vertical frame 6. The connecting part 70 connects the attachment 50 to the vertical frame 6 and restricts movement of the attachment 50 in a direction away from the vertical frame 6. Here, with respect to the attachment 50, the direction away from the vertical frame 6 is the direction in which the attachment 50 moves away from the vertical frame 6 in the left-right direction S, that is, to the side in the left-right direction S. When a load acts on the attachment 50, the connecting part 70 restricts movement of the attachment 50 in the left-right direction S relative to the vertical frame 6, preventing the attachment 50 from moving away from the vertical frame 6. The attachment 50 is held to the vertical frame 6 via the connecting part 70, and is maintained in an attached position relative to the vertical frame 6 by the connecting part 70.

[0050] The attachment 50 is connected to the vertical frame 6 by a plurality of connecting parts 70 provided at intervals along the longitudinal direction of the vertical frame 6, and movement is restricted by the plurality of connecting parts 70. The connecting parts 70 are provided at a plurality of locations at intervals along the longitudinal direction of the vertical frame 6, and are each fixed to the vertical frame 6 to restrain the attachment 50. As a result, the plurality of connecting parts 70 each restrict movement of the attachment 50 in a direction away from the vertical frame 6 (left-right direction S) relative to the vertical frame 6. The attachment 50 is stably supported by the vertical frame 6 via the connecting parts 70.

[0051] The vertical frame 6 has a receiving portion 68 that receives the connecting component 70. The receiving portion 68 is a protrusion (receiving protrusion) that protrudes toward the connecting component 70, and is located between the end wall portion 60 of the vertical frame 6 and the panel body 2A in the indoor-outdoor direction T. The receiving portion 68 is located on the outdoor side of the end wall portion 60 and on the indoor side of the panel body 2A, and protrudes from the end wall portion 60 toward the outdoor side. The receiving portion 68 is a restricting portion that restricts movement of the connecting component 70 in the left-right direction S, and restricts movement of the attachment 50 in a direction away from the vertical frame 6 via the connecting component 70.

[0052] The attachment 50 has a connecting portion 59 that is connected to the vertical frame 6 via a connecting part 70. The connecting portion 59 is a protrusion (connecting protrusion) that protrudes toward the connecting part 70, is provided at a middle portion of the attachment 50 in the indoor-outdoor direction T, and is located indoors relative to the panel body 2A. The connecting portion 59 is located outdoor relative to the end wall portion 60 and the receiving portion 68 of the vertical frame 6, and is formed on the protruding wall portion 52 of the attachment 50, protruding toward the outdoor side. The connecting portion 59 is located to the side (joint M side) of the receiving portion 68 in the left-right direction S, and the receiving portion 68 and the connecting portion 59 are arranged spaced apart in the left-right direction S. The connecting portion 59 is a held portion that is held by the connecting part 70, and the connecting portion 59 and the attachment 50 are connected to the receiving portion 68 of the vertical frame 6 via the connecting part 70.

[0053] The connecting part 70 has a fixing part 71 fixed to the vertical frame 6, two support parts 72 that support the fixing part 71, an attachment part 73 that is attached to the receiving part 68 of the vertical frame 6, and a restraining part 74 that restrains the connecting part 59 of the attachment 50. The fixing part 71 is located on the outdoor side of the end wall part 60 of the vertical frame 6 with a gap between it and the end wall part 60. The two support parts 72 are protrusions (support protrusions) located on the indoor side of the fixing part 71, and are spaced apart in the left-right direction S, each protruding from the fixing part 71 toward the indoor side. Of the two support parts 72, one support part 72 abuts against the end wall part 60 of the vertical frame 6 from the outdoor side.

[0054] The fixing portion 71 of the connecting component 70 is located between the mounting portion 73 and the restraining portion 74 in the left-right direction S. The mounting portion 73 and the restraining portion 74 are spaced apart in the left-right direction S, with the fixing portion 71 sandwiched between them. The mounting portion 73 is a first engagement portion that engages with the receiving portion 68 of the vertical frame 6, and the restraining portion 74 is a second engagement portion that engages with the connecting portion 59 of the attachment 50. In the indoor-outdoor direction T, the mounting portion 73 is located on the outdoor side of the end wall portion 60 of the vertical frame 6 and on the indoor side of the panel body 2A, and is disposed between the end wall portion 60 and the panel body 2A. The restraining portion 74 is located indoors relative to the panel body 2A and outdoor side relative to the end wall portion 60 of the vertical frame 6, and is located to the side of the mounting portion 73 in the left-right direction S.

[0055] The mounting portion 73 and the restraining portion 74 of the connecting part 70 are each formed in a concave shape (groove shape), are arranged facing the interior side of the room, and are open toward the interior side. The mounting portion 73 is a groove portion (mounting groove portion) that is open toward the receiving portion 68 of the vertical frame 6. The receiving portion 68 is arranged inside the mounting portion 73 and fits into the mounting portion 73. As a result, the mounting portion 73 engages with the receiving portion 68 and is mounted to the receiving portion 68 from the exterior side of the room. The mounting portion 73 accommodates the receiving portion 68, and is hooked onto the receiving portion 68 in the left-right direction S, and is held by the receiving portion 68.

[0056] The restraining portion 74 of the connecting part 70 is a groove (restraining groove) that opens toward the connecting part 59 of the attachment 50. The connecting part 59 is disposed inside the restraining portion 74 and fits into the restraining portion 74. As a result, the restraining portion 74 engages with the connecting part 59 and is attached to the connecting part 59 from the outside of the room, restraining the connecting part 59. The connecting part 59 is housed in the restraining portion 74 and is caught by and held by the restraining portion 74 in the left-right direction S. The connecting part 70 restrains the connecting part 59 and the attachment 50 using the restraining portion 74, restricting movement of the connecting part 59 and the attachment 50 in a direction away from the vertical frame 6. Furthermore, the connecting part 70 connects the connecting part 59 and the attachment 50 to the receiving portion 68 and the vertical frame 6 via the restraining portion 74 and the attachment mounting portion 73.

[0057] The curtain wall unit 2 includes a fixture 9 for attaching the attachment 50 to the vertical frame 6. The fixture 9 includes a bolt 9A and a back plate 9B. The connecting part 70 is a washer part that serves as a washer for the bolt 9A, and the fixing part 71 of the connecting part 70 is a washer part that receives the head of the bolt 9A. The back plate 9B is located on the indoor side of the outdoor wall part 55 of the attachment 50. The end wall part 60, the second insulating material 81, and the outdoor wall part 55 of the vertical frame 6 are disposed between the connecting part 70 (fixing part 71) and the back plate 9B in the indoor-outdoor direction T. The bolt 9A is inserted from the outdoor side of the connecting part 70 through insertion holes formed in the fixing part 71, the end wall part 60, the second insulating material 81, and the outdoor wall part 55, and is attached to the back plate 9B by screwing into a screw hole formed in the back plate 9B.

[0058] The outdoor wall portion 55 and the attachment 50 are attached to the end wall portion 60 and the vertical frame 6 by the mounting fixture 9, with a second insulating material 81 interposed between them. The fixing portion 71 and the connecting part 70 are attached to the end wall portion 60 and the vertical frame 6 by the mounting fixture 9, and are fixed to the end wall portion 60 and the vertical frame 6. In this way, the mounting fixture 9 attaches the attachment 50 to the vertical frame 6 with the connecting part 70 fixed to the vertical frame 6. The attachment 50 is attached to the vertical frame 6 by the mounting fixture 9 and the connecting part 70. The end wall portion 60 of the vertical frame 6 is located between the outdoor wall portion 55 of the attachment 50 and the connecting part 70, and receives a load from the outdoor wall portion 55 via the second insulating material 81 in the outdoor direction, and also receives a load from the connecting part 70 in the indoor direction.

[0059] The attachment 50 is attached to the vertical frame 6 by a plurality of mounting fixtures 9 that are provided at intervals along the longitudinal direction of the vertical frame 6. The mounting fixtures 9 are provided at a plurality of locations that are spaced apart along the longitudinal direction of the vertical frame 6, and a connecting part 70 is provided only at each of the locations of the plurality of mounting fixtures 9 in the longitudinal direction of the vertical frame 6. The plurality of mounting fixtures 9 attach one attachment 50 to the vertical frame 6, and fix different connecting parts 70 to the vertical frame 6. At each location of the plurality of mounting fixtures 9, the connecting part 70 is fixed to the vertical frame 6 by a common mounting fixture 9, and the attachment 50 is attached to the vertical frame 6.

[0060] In the curtain wall unit 2 described above, the insulating materials 80, 81 interposed between the attachment 50 and the vertical frame 6 inhibit heat transfer between the attachment 50 and the vertical frame 6, thereby preventing the vertical frame 6 from being cooled by heat transfer with the attachment 50. This prevents a drop in the temperature of the vertical frame 6 when the outdoor temperature is lower than the indoor temperature. It also prevents condensation from forming on the surfaces of the vertical frames 6 that are positioned facing indoors, such as in winter.

[0061] By using the connecting parts 70 to restrict movement of the attachment 50 in a direction away from the vertical frame 6 in response to a load acting on the attachment 50, it is possible to easily improve the rigidity and strength of the attachment 50 and the curtain wall unit 2 against the load. In addition, it is possible to prevent an increase in the labor required to assemble the curtain wall unit 2 and ensure the manufacturability of the curtain wall unit 2.

[0062] The attachment 50 is attached to the vertical frame 6 by the mounting fixture 9, and the connecting part 70 is fixed to the vertical frame 6, so that the movement of the attachment 50 can be stably restricted by the connecting part 70. Furthermore, the attachment 50 can be restrained to the vertical frame 6 via the connecting part 70, which has an attachment part 73 and a restraining part 74, so that the movement of the attachment 50 in the direction away from the vertical frame 6 can be stably restricted.

[0063] In a connecting part that extends over the entire longitudinal direction of the vertical frame 6, heat is transferred between the attachment 50 and the vertical frame 6 via the connecting part along the entire longitudinal direction of the vertical frame 6. In contrast, by connecting the attachment 50 to the vertical frame 6 with multiple connecting parts 70 spaced apart in the longitudinal direction of the vertical frame 6, heat is transferred between the attachment 50 and the vertical frame 6 via the connecting parts 70 only at multiple locations spaced apart in the longitudinal direction of the vertical frame 6. Therefore, the connecting parts 70 restrict movement of the attachment 50 in a direction away from the vertical frame 6 at multiple locations in the longitudinal direction of the vertical frame 6, while suppressing heat transfer between the attachment 50 and the vertical frame 6 via the connecting parts 70.

[0064] The exterior material 30 is exposed to the outside air and cooled further outdoors than the panel body 2A. By attaching the bracket 40 supporting the exterior material 30 to the attachment 50, the cooling of the vertical frame 6 can be suppressed by heat transfer between the bracket 40 and the exterior material 30 via the attachment 50. The exterior material 30 is also subjected to wind loads further outdoors than the panel body 2A. Therefore, the wind load acting on the exterior material 30 tends to increase, and the load acting on the attachment 50 from the exterior material 30 via the bracket 40 also increases. In response to this, the connecting component 70 restricts the movement of the attachment 50, preventing the attachment 50 and the bracket 40 from moving in a direction away from the vertical frame 6. This suppresses a decrease in the temperature of the vertical frame 6 of the curtain wall unit 2 on which the exterior material 30 is installed, while improving the strength of the curtain wall unit 2, including the exterior material 30, against loads.

[0065] The insulating materials 80, 81 may be provided over the entire longitudinal direction of the vertical frame 6, or may be provided at multiple locations in the longitudinal direction of the vertical frame 6. When the insulating materials 80, 81 are provided at multiple locations in the longitudinal direction of the vertical frame 6, the attachment 50 is attached to the vertical frame 6 with the mounting fixture 9 at the location where the second insulating material 81 is located. The insulating materials 80, 81 may also be provided at multiple locations in different positions in the indoor / outdoor direction T in the location (gap) between the vertical frame 6 and the attachment 50, or may be provided over the entire area between the vertical frame 6 and the attachment 50 or at one location.

[0066] The insulating material 83 between the vertical frame 6 and the attachment 50 is not limited to an air layer, but may be other insulating materials (for example, solid insulating materials with insulating function, insulating materials). The exterior material 30 is not limited to a decorative material, but may be other exterior materials (for example, gondola guide rails). The exterior material 30 may be fixed to the bracket 40, or the exterior material 30 and the bracket 40 may be formed integrally.

[0067] The present invention can be applied to a curtain wall unit 2 that does not include exterior materials 30 and brackets 40. In this case, the battens 20 are attached to attachments 50. Furthermore, the present invention is not limited to curtain wall units 2 that include fixed panel bodies 2A, but can be applied to various curtain wall units (for example, curtain wall units that include openable or movable panel bodies).

[0068] As described above, the present embodiment discloses the curtain wall unit described in the following items (1) to (5).

[0069] (1) A vertical frame that holds the panel body on the indoor side; A ledge that holds the panel body on the outdoor side; an attachment attached to the vertical frame with an insulating material interposed between the attachment and the vertical frame, and to which the batten is attached; a connecting part that connects the attachment to the vertical frame and restricts movement of the attachment in a direction away from the vertical frame; A curtain wall unit equipped with The curtain wall unit described in (1) can easily improve the load-bearing strength of the curtain wall unit while suppressing a drop in the temperature of the vertical frame that holds the panel body between it and the batten.

[0070] (2) In the curtain wall unit described in (1), A curtain wall unit comprising a fixture for attaching the attachment to the vertical frame while the connecting part is fixed to the vertical frame. In the curtain wall unit described in (2), the connecting parts are fixed to the vertical frames by the fixtures that attach the attachments to the vertical frames, and the movement of the attachments can be stably restricted by the connecting parts.

[0071] (3) In the curtain wall unit described in (1) or (2), The attachment is a curtain wall unit connected to the vertical frame by a plurality of connecting parts spaced apart from each other in the longitudinal direction of the vertical frame. In the curtain wall unit described in (3), the connecting parts restrict the movement of the attachment away from the vertical frame at multiple points along the longitudinal direction of the vertical frame, while suppressing the transfer of heat between the attachment and the vertical frame via the connecting parts.

[0072] (4) In the curtain wall unit described in any of (1) to (3), The vertical frame has a receiving portion that receives the connecting component, The attachment has a connecting portion that is connected to the vertical frame via the connecting part, The connecting component is a curtain wall unit having an attachment portion that engages with the receiving portion and is attached, and a restraining portion that engages with the connecting portion and restrains the connecting portion. In the curtain wall unit described in (4), the attachment can be restrained to the vertical frame via the connecting parts, and movement of the attachment away from the vertical frame can be stably restricted.

[0073] (5) In the curtain wall unit described in any of (1) to (4), An exterior material provided on the outdoor side of the panel body; a bracket attached to the attachment and supporting the exterior material; A curtain wall unit equipped with In the curtain wall unit described in (5), the temperature drop of the vertical frame of the curtain wall unit in which the exterior material is installed on the outdoor side of the panel body can be suppressed, while the strength against load of the curtain wall unit including the exterior material can be improved. [Explanation of symbols]

[0074] 1···Curtain wall, 2···Curtain wall unit, 2A···Panel body, 3···Frame body, 3A···Opening, 4···Top frame, 5···Bottom frame, 6···Vertical frame, 7···Medium, 8···Fixing device, 8A···Bolt, 8B···Backing board, 9···Mounting device, 9A···Bolt, 9B···Backing board, 10···Building, 11 ···Exterior wall, 12···Frame, 20···Bridge, 21···Outdoor holding portion, 22···Mounting piece, 23···Latching piece, 24···Gasket, 30···Exterior material, 40···Bracket, 41···Base, 42···Fixing surface portion, 43···Latching portion, 50···Attachment, 51···Indoor portion, 52···Protruding wall portion, 53... Indoor wall portion, 54... Protrusion portion, 55... Outdoor wall portion, 56... Fixed wall portion, 57... Locking portion, 58... Locking projection, 59... Connecting portion, 60... End wall portion, 61... Indoor retaining portion, 62... Projection portion, 63... Opposing wall portion, 64... Fitting wall portion, 65... Retaining groove portion, 66... ​​Gasket, 67... ··Equal pressure space, 68···Receiving part, 70···Connecting part, 71···Fixing part, 72···Support part, 73···Mounting part, 74···Restraining part, 80···First insulating material, 81···Second insulating material, 82···Space, 83···Insulating material, 84···Watertight material, M···Joint, R···Up and down direction, S···Left and right direction, T···Indoor and outdoor direction.

Claims

1. a vertical frame that holds the panel body on the indoor side; A ledge that holds the panel body on the outdoor side; an attachment attached to the vertical frame with an insulating material interposed between the attachment and the vertical frame, and to which the batten is attached; a connecting part that connects the attachment to the vertical frame and restricts movement of the attachment in a direction away from the vertical frame; A curtain wall unit equipped with

2. 2. The curtain wall unit according to claim 1, A curtain wall unit comprising a fixture for attaching the attachment to the vertical frame while the connecting part is fixed to the vertical frame.

3. The curtain wall unit according to claim 1 or 2, The attachment is a curtain wall unit connected to the vertical frame by a plurality of connecting parts spaced apart from each other in the longitudinal direction of the vertical frame.

4. The curtain wall unit according to claim 1 or 2, The vertical frame has a receiving portion that receives the connecting component, The attachment has a connecting portion that is connected to the vertical frame via the connecting part, The connecting component is a curtain wall unit having an attachment portion that engages with the receiving portion and is attached, and a restraining portion that engages with the connecting portion and restrains the connecting portion.

5. The curtain wall unit according to claim 1 or 2, An exterior material provided on the outdoor side of the panel body; a bracket attached to the attachment and supporting the exterior material; A curtain wall unit equipped with

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