JP2024019816A - curtain wall unit - Google Patents

Abstract

The present invention suppresses dew condensation on the indoor side surface of the vertical frame by alleviating the drop in temperature of the vertical frame due to an overhanging part that extends outward from the panel body of a curtain wall unit. A curtain wall unit 2 includes a panel body 2A disposed in an opening 3A formed by a vertical frame 6. The vertical frame 6 has an overhang portion 6A that overhangs to a position on the outdoor side of the panel body 2A. The curtain wall unit 2 includes covers 30 and 40 that cover the exposed portion 6J exposed to the outside of the overhang portion 6A, and an insulating material 74 interposed between the overhang portion 6A and the covers 30 and 40. [Selection diagram] Figure 3

Description

The present invention relates to a curtain wall unit including a panel body arranged in an opening formed by a vertical frame.

An overhang may be provided on the vertical frame of the curtain wall unit. The overhanging portion of the vertical frame extends to a position on the outdoor side of the panel body, for example, in order to ensure the strength of the vertical frame or as a decorative material. Furthermore, conventionally, a curtain wall is known in which a seal receiving member is connected to the outdoor side of a mullion, which is a vertical frame, and a guide rail for guiding a gondola guide car is integrally formed on the outer surface of the seal receiving member. (See Patent Document 1).

In the conventional curtain wall described in Patent Document 1, the guide rail extends beyond the glass plate that is the panel body to a position on the outside of the room. However, in a vertical frame having such an overhang, a large number of parts come into contact with the outside air, and in winter, the temperature tends to drop due to the influence of the outside air. Further, when the cooled vertical frame comes into contact with warm indoor air, the air is cooled down to below the dew point temperature, and there is a possibility that dew condensation may occur on the indoor surface of the vertical frame. Particularly in cold regions with severe temperature conditions, it is important to take measures against condensation on the indoor surface of the vertical frame.

Special Publication No. 62-50635

The present invention has been made in view of the above-mentioned conventional problems, and its purpose is to alleviate the drop in temperature of the vertical frame due to the overhanging part that extends outside the panel body of the curtain wall unit. The purpose is to suppress the formation of dew condensation on the indoor surface.

The present invention is a curtain wall unit including a panel body disposed in an opening formed by a vertical frame,
The vertical frame has an overhang that extends to a position on the outdoor side of the panel body,
a cover that covers an exposed portion of the overhang portion that is exposed to the outside;
an insulating material interposed between the overhang and the cover;
It is a curtain wall unit with

According to the present invention, the decrease in temperature of the vertical frame due to the overhanging portion extending outward from the panel body of the curtain wall unit toward the outdoor side is alleviated, and the formation of dew condensation on the indoor side surface of the vertical frame is suppressed. be able to.

It is a front view showing a curtain wall of a 1st embodiment. FIG. 2 is a cross-sectional view showing the curtain wall of the first embodiment. FIG. 3 is a cross-sectional view of the curtain wall of the first embodiment, showing a part of FIG. 2 in an enlarged manner. FIG. 2 is an exploded cross-sectional view showing the vertical frame and cover of the curtain wall unit of the first embodiment. It is a cross-sectional view showing a curtain wall unit of a second embodiment. It is a cross-sectional view which disassembles and shows the vertical frame and cover of the curtain wall unit of 2nd Embodiment. It is a cross-sectional view showing a curtain wall unit of a third embodiment. It is a cross-sectional view which disassembles and shows the vertical frame and cover of the curtain wall unit of 3rd Embodiment. It is a cross-sectional view showing a curtain wall unit of a fourth embodiment. It is a cross-sectional view which disassembles and shows the vertical frame and cover of the curtain wall unit of 4th Embodiment.

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 a curtain wall of a building and is provided on the outer wall of the building. A plurality of curtain wall units are combined with each other to form part of a curtain wall. A curtain wall unit and a curtain wall are the outer walls of a building, and are installed between the indoors (indoors) and the outdoors (outdoors) of the building, and form the outer walls of the building.

(First embodiment)
FIG. 1 is a front view showing the curtain wall 1 of the first embodiment, and shows the curtain wall 1 and the curtain wall unit 2 installed on the outer wall 11 of a building 10 as seen from the outside of the room. FIG. 2 is a cross-sectional view showing the curtain wall 1 of the first embodiment.
As illustrated, the curtain wall 1 includes a plurality of curtain wall units 2 installed side by side on an outer wall 11 of a building 10. The curtain wall unit 2 is a panel unit that constitutes the curtain wall 1, and is assembled as a unit in advance before installation on the outer wall 11. The curtain wall 1 and the curtain wall unit 2 are arranged on the outdoor side of the frame of the building 10 and are attached to the frame to form a wall surface (outer wall surface) of the outer wall 11 of the building 10. The plurality of curtain wall units 2 are arranged side by side in the up-down direction and the left-right direction R, and are combined with each adjacent curtain wall unit 2.

Note that when the curtain wall 1 and curtain wall unit 2 installed in the building 10 are viewed from the front (see FIG. 1), the up-down direction is the up-down direction, and the left-right direction is the left-right direction R. In FIG. 1, the up-down direction is the vertical direction, and the left-right direction R is the horizontal direction. The indoor-outdoor direction S (see FIG. 2) is the indoor-outdoor direction (indoor-outdoor direction) in the curtain wall 1 and curtain wall unit 2 installed in the building 10. Further, the indoor/outdoor direction S is a front-rear direction when the curtain wall 1 and curtain wall unit 2 installed in the building 10 are viewed from the front, and in FIG. 1 is a horizontal direction orthogonal to the left-right direction R. In this way, the direction regarding the curtain wall 1 and the curtain wall unit 2 is specified based on the direction when installed in the building 10. Moreover, the indoor side and the outdoor side with respect to the curtain wall 1 and the curtain wall unit 2 are the indoor side and the outdoor side when installed in the building 10.

The curtain wall unit 2 includes two panel bodies 2A and a frame 3 surrounding the panel bodies 2A. The frames 3 of the plurality of curtain wall units 2 are combined with the frames 3 of adjacent curtain wall units 2, respectively. The frame 3 is a rectangular opening frame that forms an opening 3A, and is attached to the frame of the building 10. The panel body 2A is a rectangular glass panel body (for example, plate glass, double-glazed glass, or laminated glass), and is arranged in the opening 3A of the frame body 3.

The frame body 3 has four frames 4 to 6 (an upper frame 4, a lower frame 5, a pair of vertical frames 6) combined with each other and a blind 7, and the frames 4 to 6 form a rectangular opening 3A. is formed. The frames 4 to 6 of the frame body 3 are frame materials that constitute the frame body 3, and the frames 4 to 6 and the blinds 7 of the frame body 3 are made of metal (for example, made of aluminum alloy) formed by extrusion molding. It consists of a section.

The upper frame 4 and the lower frame 5 are upper and lower horizontal frames of the frame body 3, and extend along the left-right direction R (horizontal direction) at the upper and lower parts of the frame body 3. The pair of vertical frames 6 are side frames located on the left and right sides of the frame 3, and extend along the vertical direction (vertical direction) at the sides of the frame 3. The ends of the upper frame 4, the lower frame 5, and a pair of vertical frames 6 are connected to form frames 4 to 6. The blind 7 extends along the left-right direction R between the upper frame 4 and the lower frame 5, is connected to a pair of vertical frames 6, and vertically divides the opening 3A of the frame 3. The panel body 2A is fitted into the frame body 3 and held by the frame body 3.

FIG. 3 is a cross-sectional view of the curtain wall 1 of the first embodiment, showing a part of FIG. ing. Moreover, in FIG. 3, a part of the gondola 20 is schematically shown with a chain double-dashed line.
As illustrated, a plurality of curtain wall units 2 and frames 3 are installed side by side in the left-right direction R on the outer wall 11 of the building 10. In two curtain wall units 2 adjacent in the left-right direction R, the vertical frame 6 of one curtain wall unit 2 and the vertical frame 6 of the other curtain wall unit 2 face each other in the left-right direction R, and are adjacent to each other in the left and right directions. It is arranged as follows.

Vertical frames 6 of curtain wall units 2 adjacent in the left-right direction R are arranged at intervals in the left-right direction R. The vertical frame 6 is spaced apart in the left-right direction R from other vertical frames 6 adjacent in the left-right direction R (vertical frames 6 of other curtain wall units 2 installed side by side in the left-right direction R). In each of the curtain wall units 2, the panel body 2A is arranged in an opening 3A formed by the vertical frame 6 of the frame body 3, and is exposed to the outside. The panel body 2A is located on the opening 3A side of the vertical frame 6 and is held by the vertical frame 6.

The vertical frame 6 has a projecting portion 6A extending toward the outdoor side, and the curtain wall unit 2 has two covers 30 and 40 (a first cover 30 and a second cover 30) that cover the projecting portion 6A of the vertical frame 6. cover 40). The projecting portion 6A is formed in a hollow shape and is arranged at a position on the outdoor side of the panel body 2A. The overhanging portions 6A of the vertical frames 6 of the curtain wall units 2 that are adjacent to each other in the left-right direction R are arranged adjacent to each other in the left-right direction at intervals in the left-right direction R at positions on the outdoor side of the panel body 2A. . The overhanging portion 6A of the vertical frame 6 is separated in the left-right direction R from the overhanging portion 6A of another vertical frame 6 adjacent in the left-right direction R, and is separated from the overhanging portion 6A of another vertical frame 6 in the left-right direction R. are placed facing each other.

The overhanging portion 6A of the vertical frame 6 forms a gap 8 with the overhanging portion 6A of another vertical frame 6 adjacent in the left-right direction R. The gap 8 is a space between the overhanging portions 6A of the vertical frames 6 adjacent to each other in the left-right direction R, and extends in the longitudinal direction (vertical direction) of the vertical frame 6 along the overhanging portions 6A of the vertical frame 6. The gaps 8 between the curtain wall units 2 arranged in the vertical direction are aligned in the indoor-outdoor direction S and the left-right direction R, and are arranged side by side in the vertical direction. In each of the vertical frames 6, the overhanging portion 6A is provided on the outdoor side including the end of the vertical frame 6 on the outdoor side, and extends along the indoor/outdoor direction S.

FIG. 4 is an exploded cross-sectional view showing the vertical frame 6 and covers 30, 40 of the curtain wall unit 2 of the first embodiment. The left vertical frame 6 and covers 30, 40 are shown.
As shown in FIGS. 3 and 4, the vertical frame 6 includes a vertical frame main body 50 located on the indoor side, an overhang member 60 located on the outdoor side, a watertight material 70 attached to the vertical frame main body 50, and an airtight material 70 attached to the vertical frame main body 50. It has a material 71. The vertical frame main body 50 is connected to other frames (upper frame 4, lower frame 5) of the frame body 3, forms an opening 3A of the frame body 3, and holds the panel body 2A. The overhanging member 60 is an attached member attached to the vertical frame main body 50 and is located on the outdoor side of the vertical frame main body 50. Moreover, the overhanging material 60 is attached to the vertical frame main body 50 and overhangs from the vertical frame main body 50 to the outdoor side.

The watertight material 70 and the airtight material 71 are elastically deformable tight materials and extend in the longitudinal direction (vertical direction) of the vertical frame 6 and the vertical frame body 50. The watertight material 70 is a rain barrier, and is an outdoor tight material (first tight material) located on the outdoor side of the airtight material 71, and is located on the indoor side of the overhanging portion 6A of the vertical frame 6. There is. The airtight material 71 is a wind barrier and is an indoor tight material (second tight material) located on the indoor side more than the watertight material 70, and is spaced apart from the watertight material 70 toward the indoor side.

The watertight material 70 and the airtight material 71 are spaced apart from each other in the indoor/outdoor direction S and are arranged in parallel with each other, with an interval therebetween to form an equal pressure space 72 between them. The equal pressure space 72 is a space that has an equal pressure with the atmospheric pressure (outside pressure) of the outside (outside air), and communicates with the outside. The outdoors is a space located on the outside of the curtain wall unit 2, and the outside air is outdoor air.

In the vertical frames 6 of the curtain wall units 2 that are adjacent to each other in the left-right direction R, the watertight materials 70 of the vertical frame bodies 50 of the left and right vertical frames 6 are arranged at positions facing each other and in contact with each other. Further, the airtight members 71 of the vertical frame main bodies 50 of the left and right vertical frames 6 are arranged at positions facing each other and abut against each other. The water-tight material 70 and the air-tight material 71 that are in contact with each other make the area between the vertical frame bodies 50 of the left and right vertical frames 6 water-tight, and an equal pressure space 72 is created between the vertical frame bodies 50 of the left and right vertical frames 6. It is formed. The equal pressure space 72 is formed by the watertight material 70, the airtight material 71, and the vertical frame body 50, and extends in the longitudinal direction of the vertical frame 6 and the vertical frame body 50.

In this way, the vertical frame main body 50 of the vertical frame 6 is watertight at a portion between the vertical frame main body 50 of another vertical frame 6 adjacent in the left-right direction R by the watertight material 70 and the airtight material 71. In this state, the vertical frame main body 50 of the vertical frame 6 forms an equal pressure space 72 between the vertical frame main bodies 50 of other vertical frames 6 adjacent in the left-right direction R, and the vertical frame main bodies 50 of the other vertical frames 6 It is arranged to face the main body 50 with an equal pressure space 72 in between. The equal pressure space 72 is located closer to the room than the gap 8 between the overhang portions 6A of the vertical frames 6 adjacent to each other in the left-right direction R and the left and right overhang portions 6A. The overhanging portion 6A of the vertical frame 6 and the gap 8 are located on the outside of the room with respect to the equal pressure space 72.

The vertical frame main body 50 includes a holding part 51 that holds the panel body 2A, an indoor side part 52 located on the indoor side of the holding part 51, and two rows of groove-shaped attached parts 53 and 54 (first attached parts). 53, a second attached part 54), and a protruding part 55 located on the outdoor side of the holding part 51. The holding portion 51 of the vertical frame body 50 is located between the indoor side portion 52 and the protruding portion 55, is formed in a groove shape, and accommodates the vertical edge portion 2B of the panel body 2A. The vertical edges 2B of the panel body 2A are located on the left and right sides of the panel body 2A, extend in the vertical direction (vertical direction), and are held by groove-shaped holding portions 51.

The indoor side part 52 of the vertical frame main body 50 is a hollow part (indoor hollow part) that includes the end of the vertical frame main body 50 on the indoor side, and protrudes to a position on the indoor side beyond the panel body 2A and the holding part 51. There is. The indoor side part 52 is connected to the holding part 51 on the indoor side of the panel body 2A, protrudes from the holding part 51 to the indoor side, and is arranged on the indoor side of the panel body 2A.

The first attached part 53 and the second attached part 54 of the vertical frame main body 50 are spaced apart from each other in the indoor/outdoor direction S and are parallel to each other, and extend in the longitudinal direction of the vertical frame 6 and the vertical frame main body 50. The first attached portion 53 is an outdoor attached portion that is located on the outdoor side of the vehicle compared to the second attached portion 54, and is located on the indoor side of the overhang portion 6A of the vertical frame 6. The second attached part 54 is an indoor attached part located on the indoor side of the vehicle compared to the first attached part 53, and is spaced apart from the first attached part 53 toward the indoor side. The watertight material 70 is attached to the first attached part 53, and the airtight material 71 is attached to the second attached part 54.

The protruding part 55 of the vertical frame body 50 is a hollow part (outdoor hollow part) that includes the end of the vertical frame body 50 on the outdoor side, and protrudes to a position on the outdoor side beyond the panel body 2A and the holding part 51. . The protruding part 55 is connected to the holding part 51 on the outdoor side of the holding part 51, protrudes from the holding part 51 to the outdoor side, and is arranged along the indoor-outdoor direction S. Furthermore, the protruding portion 55 has an engaged portion 55A with which the overhang 60 engages, and a fixed portion 55B to which the overhang 60 is fixed. The engaged portion 55A and the fixed portion 55B are provided at the outdoor end (tip portion) of the protrusion 55. The fixed portion 55B is located on the opening 3A side of the frame 3 (opposite the gap 8) with respect to the engaged portion 55A in the left-right direction R, and protrudes toward the opening 3A.

The overhanging material 60 is a decorative material of the curtain wall unit 2, and overhangs to a position on the outdoor side of the vertical frame body 50. Here, the overhanging material 60 is a vertical fin, and is located on the outdoor side of the protruding part 55 of the vertical frame main body 50, and extends to a position further to the outdoor side than the protruding part 55. The overhanging material 60 is attached to the protrusion 55 on the outdoor side of the protrusion 55, extends from the protrusion 55 to the outdoor side, and is arranged along the indoor/outdoor direction S.

The overhanging member 60 has an engaging portion 61 that engages with the protruding portion 55, a fixing portion 62 that is fixed to the protruding portion 55 with a fixture 80, and a recessed groove portion 63. The engaging portion 61 and the fixing portion 62 are provided at the end of the overhanging member 60 on the indoor side. The fixing portion 62 is located on the opening 3A side of the frame body 3 with respect to the engaging portion 61 in the left-right direction R, and protrudes toward the opening 3A side. The groove portion 63 is formed in the outdoor side portion of the overhanging material 60 including the outdoor end of the overhanging material 60, and opens toward the side opposite to the opening 3A (the side opposite to the opening) in the left-right direction R. has been done. The opposite side of the opening 3A is the gap 8 side.

The engaging portion 61 of the overhanging member 60 engages with the engaged portion 55A of the protruding portion 55. In this state, the fixing portion 62 of the overhanging member 60 is placed in contact with the fixed portion 55B of the protruding portion 55 from the outdoor side, and overlaps the fixed portion 55B. The fixture 80 is a bolt and a nut, and fixes the fixing portion 62 of the overhanging member 60 to the fixed portion 55B of the protruding portion 55. As a result, the overhanging material 60 (in this case, the end on the indoor side) is attached to the end on the outdoor side of the protrusion 55 and projects from the end on the outdoor side of the protrusion 55 toward the outdoor side.

The projecting portion 6A of the vertical frame 6, the projecting portion 55 of the vertical frame main body 50, the projecting material 60, and the gap 8 are located on the outdoor side of the panel body 2A and the holding portion 51 of the vertical frame main body 50. . The projecting portion 6A includes a projecting portion 55 and a projecting member 60, and projects beyond the panel body 2A and the holding portion 51 to a position on the outdoor side. The projecting portion 6A is connected to the holding portion 51 on the outdoor side of the holding portion 51, extends from the holding portion 51 to the outdoor side, and is arranged along the indoor/outdoor direction S.

The overhanging portion 6A of the vertical frame 6 is arranged to face the overhanging portion 6A of another vertical frame 6 adjacent in the left-right direction R with a gap 8 in between. Moreover, the protruding part 55 of the protruding part 6A forms a gap 8 between the protruding part 55 of the protruding part 6A of the other vertical frame 6, and the protruding part 55 of the protruding part 6A of the other vertical frame 6 and are arranged opposite to each other with a gap 8 in between. The overhang material 60 of the overhang part 6A forms a gap 8 between the overhang material 60 of the overhang part 6A of the other vertical frame 6, and the overhang material 60 of the overhang part 6A of the other vertical frame 6 60 and are arranged opposite to each other with a gap 8 in between.

The projecting portion 6A of the vertical frame 6 has an outdoor end portion 6B, left and right side portions 6C, 6D (first side portion 6C, second side portion 6D), and five receiving portions for receiving the covers 30, 40. 6E to 6I (first receiving part 6E, second receiving part 6F, third receiving part 6G, fourth receiving part 6H, fifth receiving part 6I). The end surface portion 6B of the overhanging portion 6A is a portion that becomes the end surface (tip surface) on the outdoor side of the overhanging member 60 and the overhanging portion 6A, and is arranged toward the outdoor side. Further, the end surface portion 6B is a wall portion on the outdoor side of the groove portion 63 and a finding portion (end face portion) on the outdoor side of the overhanging member 60 and the overhanging portion 6A, and is a finding direction of the vertical frame 6 (horizontal direction R ) are located along the

The left and right side surfaces 6C and 6D of the overhang portion 6A are the portions that become the right and left side surfaces of the overhang portion 55, the overhang member 60, and the overhang portion 6A when the overhang portion 6A is viewed from the outdoor side. , are located on one side and the other side of the overhanging portion 6A in the left-right direction R, and are arranged toward the left and right sides of the overhanging portion 6A. Moreover, the side parts 6C and 6D are the left and right prospective parts (first prospective part, second prospective part) of the overhanging part 6A, and are arranged along the prospective direction of the vertical frame 6 (indoor/outdoor direction S). There is. The side parts 6C and 6D are respectively composed of the side parts 6C and 6D of the protruding part 55 and the side parts 6C and 6D of the overhanging material 60, which are continuous in the indoor/outdoor direction S, and are connected to the end face part 6B of the overhanging part 6A and the vertical frame main body. It is located between the holding parts 51 of 50.

The first side surface portion 6C is located on the opening 3A side of the frame 3 in the left-right direction R of the overhang 6A, and the second side surface portion 6D is located on the opposite side of the opening 3A in the left-right direction R of the overhang 6A. (on the gap 8 side). The fixed portion 55B of the protruding portion 55 and the fixing portion 62 of the overhanging member 60 are provided on the first side surface portion 6C, and are located at an intermediate portion of the first side surface portion 6C in the indoor/outdoor direction S. The groove portion 63 of the overhanging material 60 is provided in the second side surface portion 6D, and is provided on the indoor side of the end surface portion 6B and the outdoor side of the second side surface portion 6D including the end portion on the outdoor side of the second side surface portion 6D. formed into parts. The gap 8 is formed between the second side portions 6D of the overhang portions 6A of the vertical frames 6 adjacent in the left-right direction R.

The receiving portions 6E to 6I of the projecting portion 6A are attached portions to which the covers 30 and 40 are attached. The first receiving portion 6E, the second receiving portion 6F, and the third receiving portion 6G are provided on the first side surface portion 6C. Further, the fourth receiving portion 6H is provided on the end surface portion 6B and the second side surface portion 6D, and the fifth receiving portion 6I is provided on the second side surface portion 6D.

The first receiving portion 6E is located at the end of the protruding portion 55, the protruding portion 6A, and the first side surface portion 6C on the indoor side. The second receiving portion 6F is located at the end of the protruding portion 55 on the outdoor side, and is also located at an intermediate portion in the indoor/outdoor direction S between the projecting portion 6A and the first side surface portion 6C. The third receiving portion 6G is located at the outdoor end of the overhanging member 60, the overhanging portion 6A, and the first side surface portion 6C. The fourth receiving portion 6H is located at the end of the overhang 60, the overhang 6A, and the second side surface portion 6D on the outdoor side, and is also located at the end of the end surface portion 6B on the gap 8 side. . The fifth receiving portion 6I is located at an intermediate portion in the indoor/outdoor direction S of the overhanging member 60, the overhanging portion 6A, and the second side surface portion 6D. The fourth receiving portion 6H and the fifth receiving portion 6I are located on one side and the other side of the groove portion 63 in the indoor/outdoor direction R.

The vertical frame 6 has a watertight material 73 attached to the second side surface portion 6D of the overhang portion 6A of the vertical frame 6. The watertight material 73 is attached to the groove portion 63 of the overhang material 60 of the second side surface portion 6D and the portion adjacent to the indoor side of the fifth receiving portion 6I, and is attached to the longitudinal frame 6 and the overhang portion 6A in the longitudinal direction (vertical direction). ). Further, the watertight material 73 is spaced away from the end surface portion 6B toward the indoor side, and protrudes toward the gap 8 from the second side surface portion 6D at a position adjacent to the indoor side of the groove portion 63. In the gap 8, the watertight material 73 of the vertical frame 6 is arranged to overlap in the indoor/outdoor direction S with the watertight material 73 of another vertical frame 6 adjacent in the left-right direction R. The overlapping watertight materials 73 stop water from flowing between the projecting portions 6A (second side portions 6D) of the vertical frames 6A adjacent to each other in the left-right direction R.

The gap 8 is partitioned in the indoor-outdoor direction S by the watertight material 73 of the vertical frame 6 adjacent in the left-right direction R. The gap 8 is partitioned by a watertight material 73 into an indoor space 8A and an outdoor space 8B. The indoor space 8A is a space located on the indoor side of the watertight material 73 in the gap 8, and is formed by a portion of the second side surface portion 6D that is located on the indoor side of the watertight material 73. The outdoor space 8B is a space located on the outdoor side of the watertight material 73 in the gap 8, and is formed on the side of the groove portion 63, which is a portion of the second side surface portion 6D that is located on the outdoor side of the watertight material 73. The watertight material 73 is located between the indoor space 8A and the outdoor space 8B of the gap 8. When the overhanging portions 6A of the vertical frames 6 adjacent in the left-right direction R are viewed from the outdoor side, the watertight material 73 allows the indoor space 8A of the gap 8 and the portion of the second side surface portion 6D that is closer to the indoor side than the watertight material 73. , and a portion of the overhang portion 6A facing the indoor space 8A is shielded. The outdoor space 8B of the gap 8 is open toward the outdoor side of the vertical frame 6.

The covers 30 and 40 cover the exposed portion 6J of the overhang portion 6A of the vertical frame 6 on the outdoor side of the panel body 2A, thereby shielding the exposed portion 6J. The exposed portion 6J is a portion of the overhang portion 6A that is exposed to the outside of the overhang portion 6A. In addition, in a state where the overhanging portions 6A of the vertical frames 6 of the left and right curtain wall units 2 are adjacent to each other in the left-right direction R, the outside of the overhanging portion 6A is the portion that is external to the adjacent left and right overhanging portions 6A. The exposed portion 6J is a portion exposed to the outside of the adjacent left and right overhang portions 6A. Without the covers 30 and 40, the exposed portion 6J is exposed on the outdoor side of the curtain wall unit 2 and exposed to the outside air.

The curtain wall unit 2 includes five insulating materials 74 interposed between the overhanging portion 6A of the vertical frame 6 (here, the exposed portion 6J of the overhanging portion 6A) and the covers 30 and 40. The covers 30 and 40 are attached to the overhang 6A with an insulating material 74 interposed between them and the overhang 6A at a position on the outdoor side of the panel body 2A. The insulating material 74 is provided between the overhang 6A and the covers 30, 40, and contacts the overhang 6A and the covers 30, 40.

The insulating material 74 is an elastically deformable heat insulating material (here, an elastic insulating rubber) having a heat insulating function, and separates the entire covers 30 and 40 from the overhanging portion 6A and the exposed portion 6J of the vertical frame 6. and place it. The insulating material 74 is a solid insulating material (solid heat insulating material), and is provided over the entire longitudinal direction (vertical direction) of the overhanging portion 6A or at multiple locations in the longitudinal direction of the overhanging portion 6A. Here, the insulating material 74 is provided over the entire longitudinal direction of the overhang 6A and is sandwiched between the overhang 6A and the covers 30 and 40. Further, the insulating material 74 is provided at a plurality of locations between the overhang portion 6A and the covers 30 and 40. The covers 30 and 40 are arranged with a gap between the overhanging part 6A and the exposed part 6J without contacting the overhanging part 6A and the exposed part 6J throughout the cover 30 and 40 due to the insulating material 74.

The covers 30 and 40 are located on the outdoor side of the panel body 2A, and cover the entire exposed portion 6J of the overhang portion 6A outside the overhang portion 6A of the vertical frame 6. Here, the exposed portion 6J is the groove portion 63, which is a portion of the end surface portion 6B, the first side surface portion 6C, and the second side surface portion 6D on the outdoor side of the watertight material 73, and the receiving portions 6E to 6I. 6E to 6I are provided in the exposed portion 6J. The end surface portion 6B, the first side surface portion 6C, and the first to fourth receiving portions 6E to 6H, which are the exposed portions 6J, are covered by the first cover 30. The first cover 30 is disposed on the opening 3A side and the outdoor side of the frame 3 with respect to the overhang 6A, and covers the exposed portion 6J from the opening 3A side and the outdoor side. Further, the end surface portion 6B, which is the exposed portion 6J, the groove portion 63, and the fourth and fifth receiving portions 6H and 6I are covered by the second cover 40. The second cover 40 is arranged on the gap 8 side with respect to the projecting portion 6A, and covers the exposed portion 6J from the gap 8 side.

The first cover 30 includes two plate-shaped cover parts 31 and 32 (a first cover part 31 and a second cover part 32), a gap closing material 33 attached to the first cover part 31, and a vertical frame 6. It has four mounting parts 34 to 37 (a first mounting part 34, a second mounting part 35, a third mounting part 36, and a fourth mounting part 37) that are mounted on the overhanging part 6A. The first cover portion 31 is located on the opening 3A side of the frame 3 with respect to the first side surface portion 6C, which is the exposed portion 6J, and is arranged along the indoor/outdoor direction S, and is spaced apart from the first side surface portion 6C. In this state, the first side surface portion 6C is covered from the opening 3A side. Further, the first cover part 31 is spaced apart from the holding part 51 of the vertical frame main body 50 toward the outdoor side, and is arranged with a gap between the first cover part 31 and the holding part 51 of the vertical frame main body 50. The gap closing material 33 protrudes from the first cover part 31 toward the indoor side, is disposed in the gap between the first cover part 31 and the holding part 51 of the vertical frame main body 50, and contacts the holding part 51 of the vertical frame main body 50. In contact with each other, the gap between the first cover part 31 and the holding part 51 of the vertical frame main body 50 is closed. In this state, the gap closing material 33 covers the first side surface portion 6C from the opening 3A side together with the first cover portion 31 while being separated from the first side surface portion 6C.

The second cover part 32 is connected to the outdoor end of the first cover part 31 and protrudes from the outdoor end of the first cover part 31 toward the gap 8 (outdoor space 8B). The second cover portion 32 is located on the outdoor side with respect to the end surface portion 6B, which is the exposed portion 6J, and is arranged along the left-right direction R, and is spaced apart from the end surface portion 6B so that the end surface portion 6B is cover.

The first mounting part 34 is located at the end of the first cover part 31 and the first cover 30 on the indoor side. The second mounting portion 35 is located at an intermediate portion of the first cover portion 31 and the first cover 30 in the indoor/outdoor direction S. The third mounting part 36 and the fourth mounting part 37 are located at the end of the first cover 30 on the outdoor side. Further, the third mounting part 36 is located at the middle part of the second cover part 32 in the left-right direction R, and the fourth mounting part 37 is located at the tip of the second cover part 32 on the gap 8 side.

The insulating material 74 is provided between the first mounting section 34 and the first receiving section 6E, between the second mounting section 35 and the second receiving section 6F, between the third mounting section 36 and the third receiving section 6G, and between the third mounting section 36 and the third receiving section 6G. The four mounting portions 37 and the fourth receiving portions 6H are provided respectively. The mounting parts 34 to 37 and the first cover 30 are received by the receiving parts 6E to 6H with an insulating material 74 interposed between them and the receiving parts 6E to 6H of the overhanging part 6A. It is attached to the exposed portion 6J (end surface portion 6B, first side surface portion 6C) of the protruding portion 6A. In this state, the first cover 30 is fixed to the exposed portion 6J of the projecting portion 6A (the first side surface portion 6C of the projecting portion 55) by a fixing member 81 that is a screw. The fixture 81 fixes the first mounting portion 34 of the first cover 30 to the exposed portion 6J.

The second cover 40 has a cover portion 41 and two attachment portions 42 and 43 (an outdoor attachment portion 42 and an indoor attachment portion 43) that are attached to the overhang portion 6A of the vertical frame 6. The cover portion 41 is a groove formed in a groove shape of the second cover 40, and is located on the gap 8 (outdoor side space 8B) side with respect to the groove 63 of the second side surface portion 6D, which is the exposed portion 6J. It is arranged within the groove portion 63. Further, the cover portion 41 covers the groove portion 63 from the gap 8 side while being spaced apart from the groove portion 63. The cover portion 41 is located on the indoor side with respect to the end surface portion 6B, which is the exposed portion 6J, and covers the end surface portion 6B from the indoor side while being separated from the end surface portion 6B.

The outdoor side attachment part 42 is located at the end of the cover part 41 on the outdoor side, and the indoor side attachment part 43 is located at the end of the cover part 41 on the indoor side. The insulating material 74 is provided between the outdoor mounting part 42 and the fourth receiving part 6H, and between the indoor mounting part 43 and the fifth receiving part 6I. The mounting parts 42, 43 and the second cover 40 are received by the receiving parts 6H, 6I with an insulating material 74 interposed between the receiving parts 6H, 6I of the overhanging part 6A, and the receiving parts 6H, 6I and the tension It is attached to the exposed portion 6J (end surface portion 6B, groove portion 63 of the second side surface portion 6D) of the protruding portion 6A. In this state, the second cover 40 is fixed to the exposed portion 6J (groove portion 63) of the overhang portion 6A using a fixing member 82 that is a screw. The fixture 82 fixes the cover portion 41 of the second cover 40 to the exposed portion 6J.

The covers 30 and 40 have groove-shaped guide rails 90 that guide the gondola 20. The guide rail 90 is formed on the covers 30, 40 located on one side in the left-right direction R of the overhanging portion 6A of the vertical frame 6, and constitutes a part of the covers 30, 40. Here, one side in the left-right direction R is the gap 8 side, and the guide rail 90 is integrally formed with the second cover 40. The second cover 40 is located on the gap 8 side of the overhang 6A, and covers the exposed portion 6J on the gap 8 side of the overhang 6A. The guide rail 90 is a groove-shaped cover portion 41 of the second cover 40, and is open toward the gap 8 side in the left-right direction R. The second cover 40 and the guide rail 90 are located on the outdoor side of the panel body 2A and extend in the longitudinal direction of the overhang 6A. The guide rails 90 of the curtain wall units 2 arranged in the vertical direction are aligned in the indoor/outdoor direction S and the left/right direction R, and are arranged side by side in the vertical direction.

The gondola 20 includes a gondola main body (not shown) on which a person rides, a plurality of (two in FIG. 3) guide rollers 21 guided by a guide rail 90 of the second cover 40, and a gondola main body that connects the guide rollers 21 to the gondola main body. It has a rod-shaped connecting member 22 that connects to. The gondola main body moves in the vertical direction on the outdoor side of the curtain wall 1 and curtain wall unit 2. The connecting member 22 extends from the gondola main body toward the projecting portion 6A of the vertical frame 6. The guide roller 21 is rotatably provided at the tip of the connecting member 22 , is arranged inside the guide rail 90 , and is guided by the guide rail 90 . The guide roller 21 and the gondola 20 are guided by the guide rail 90 in the longitudinal direction of the guide rail 90 and the vertical frame 6, and move in the longitudinal direction of the vertical frame 6.

The second cover 40 and the guide rail 90 are located on the side of the gap 8 (outdoor side space 8B) in the outdoor side portion of the overhang portion 6A, and are exposed on the side of the gap 8 in the outdoor side portion of the overhang portion 6A. 6J (groove portion 63, end surface portion 6B). The second cover 40 and guide rail 90 of the curtain wall unit 2 adjacent in the left-right direction R are respectively provided on the gap 8 side of the overhanging portion 6A of the vertical frame 6, and are placed on the left and right side with the outdoor space 8B of the gap 8 in between. Adjacent in direction R. The second cover 40 and the guide rail 90 that are adjacent to each other in the left-right direction R form an outdoor space 8B with a gap 8 between them, face each other in the left-right direction R, and are spaced apart in the left-right direction R from side to side. are located adjacent to each other. The connecting member 22 extends from the gondola main body to the outdoor space 8B of the gap 8, and the connecting member 22 and the guide roller 21 are arranged in the outdoor space 8B of the gap 8. The guide rollers 21 are arranged inside the guide rails 90 adjacent to each other in the left-right direction R in the outdoor space 8B of the gap 8, and are guided by the guide rails 90.

In the curtain wall unit 2 described above, the covers 30 and 40 prevent the exposed portion 6J of the overhanging portion 6A of the vertical frame 6 from being exposed to the outside air, and the outside air cools the overhanging portion 6A and the vertical frame 6. It is possible to prevent this from happening. Further, when the temperature of the covers 30, 40 decreases due to outside air, the insulating material 74 inhibits heat transfer between the overhanging portion 6A and the covers 30, 40, thereby reducing the heat transfer to the covers 30, 40. This can prevent the overhanging portion 6A and the vertical frame 6 from being cooled. The watertight material 73 of the vertical frame 6 adjacent to each other in the left-right direction R can also prevent the projecting portion 6A and the vertical frame 6 from being cooled by the outside air. Therefore, the decrease in the temperature of the vertical frame 6 due to the overhang portion 6A can be alleviated, and it is possible to suppress the occurrence of dew condensation on the indoor side surface of the vertical frame 6 that is disposed facing indoors.

By covering the entire exposed portion 6J of the overhanging portion 6A with the covers 30, 40, the outside air is prevented from coming into direct contact with the overhanging portion 6A, and the drop in temperature of the overhanging portion 6A and the vertical frame 6 is alleviated. be able to. In addition, the covers 30 and 40 prevent the exposed portion 6J of the overhang portion 6A, which is made of the projection portion 55 of the vertical frame main body 50 and the overhang material 60 attached to the projection portion 55, from being exposed to the outside air. A decrease in temperature of the portion 6A and the vertical frame 6 can be suppressed.

In order to guide the gondola 20, the guide rail 90 needs to be provided at a location exposed to the outside on the outdoor side of the curtain wall unit 2, and is exposed to the outside air. On the other hand, by providing the guide rail 90 on the second cover 40, the overhang 6A is prevented from being exposed to the outside air, and the overhang 6A and the vertical frame 6 are prevented from being cooled by the outside air. be able to. However, the guide rail 90 may be formed on the first cover 30 located on the opening 3A side of the frame 3 in the left-right direction R of the overhang 6A. In this case, the guide rail 90 may be formed at any position in the indoor/outdoor direction R of the first cover 30 (for example, an outdoor side portion, an indoor side portion, or an intermediate portion in the indoor/outdoor direction R). can. In this way, no matter which side of the overhanging portion 6A in the left-right direction R the guide rail 90 is provided with, it is possible to suppress the formation of dew condensation on the indoor side surface of the vertical frame 6.

Note that, depending on the aspect of the exposed portion 6J of the overhang portion 6A, the exposed portion 6J may be covered with only one cover, or may be covered with a plurality of covers. Further, the overhanging material 60 is not limited to a decorative material, and may be another overhanging material that overhangs the outdoor side. If there is no need to guide the gondola, the guide rail 90 does not need to be formed on the covers 30, 40.

The vertical frame 6 may be covered with a cover (indoor side cover) on the indoor side of the panel body 2A. In this case, the indoor cover is attached to the vertical frame 6 with an insulating material interposed between the vertical frame 6 and the indoor cover. Further, the present invention is not limited to the curtain wall unit 2 having a fixed panel body 2A, but can be applied to various curtain wall units (for example, a curtain wall unit having an openable/closable or movable panel body). be able to.

Next, a curtain wall unit 2 according to another embodiment will be described. In each of the following embodiments, descriptions of the same items as in the first embodiment will be omitted, and items that are different from the first embodiment will be mainly described. Furthermore, regarding each of the following embodiments, the same names as those of the first embodiment are used for the structures corresponding to the structures of the first embodiment.

(Second embodiment)
FIG. 5 is a cross-sectional view showing the curtain wall unit 2 of the second embodiment, and similarly to FIG. 3, it shows the vertical frame 6 side of two curtain wall units 2 adjacent in the left-right direction R. . FIG. 6 is an exploded cross-sectional view showing the vertical frame 6 and covers 30, 40 of the curtain wall unit 2 of the second embodiment, and similarly to FIG. 4, the left and right vertical frames 6 and the cover shown in FIG. The left vertical frame 6 and the covers 30 and 40 are shown.

As shown in the figure, in the curtain wall unit 2 of the second embodiment, the vertical frame 6 has a vertical frame main body 50 that forms the opening 3A, and the vertical frame main body 50 is located at a position on the outdoor side of the panel body 2A. It has a protruding portion 55 that protrudes up to the point. However, the vertical frame 6 does not have the overhang material 60, and the overhang part 6A of the vertical frame 6 is the protrusion part 55 of the vertical frame main body 50. In this way, the overhanging portion 6A does not include the overhanging material 60 and consists only of the protruding portion 55 of the vertical frame body 50.

The protruding portion 55 of the vertical frame main body 50 does not have an engaged portion 55A and a fixed portion 55B, but has a concave groove portion 56. The groove 56 of the protrusion 55 is configured similarly to the groove 63 of the overhanging material 60 of the first embodiment, and is formed in the outdoor side portion of the protrusion 55 including the outdoor end of the protrusion 55. , is open toward the gap 8 side in the left-right direction R.

The end surface portion 6B of the protruding portion 6A is a portion that becomes the end surface (tip surface) on the outdoor side of the protrusion portion 55, and is a finding portion (end surface portion) on the outdoor side of the protrusion portion 55. The left and right side portions 6C and 6D of the overhang portion 6A are side portions 6C and 6D of the protrusion portion 55, respectively. The groove portion 56 of the protruding portion 55 is provided in the second side surface portion 6D, and covers the outdoor side portion of the second side surface portion 6D including the indoor side of the end surface portion 6B and the outdoor side end of the second side surface portion 6D. is formed.

The projecting portion 6A of the vertical frame 6 has four receiving portions 6E to 6H (a first receiving portion 6E, a second receiving portion 6F, a third receiving portion 6G, and a fourth receiving portion 6H). The first receiving portion 6E and the second receiving portion 6F are provided on the first side surface portion 6C. Further, the first receiving portion 6E is located at the indoor end of the protruding portion 55, the overhanging portion 6A, and the first side surface portion 6C, and the second receiving portion 6F is located at the end of the protruding portion 55, the overhanging portion 6A, and the first side surface portion 6C. , and located at the outdoor end of the first side surface portion 6C. The third receiving portion 6G is provided on the end surface portion 6B and the second side surface portion 6D, and is located at the end of the protruding portion 55, the overhang portion 6A, and the second side surface portion 6D on the outdoor side. It is located at the end on the gap 8 side of 6B. The fourth receiving portion 6H is provided on the second side surface portion 6D and is located at an intermediate portion of the protrusion portion 55, the overhang portion 6A, and the second side surface portion 6D in the indoor/outdoor direction S. The third receiving portion 6G and the fourth receiving portion 6H are located on one side and the other side of the groove portion 56 in the indoor/outdoor direction R.

The watertight material 73 is attached to the groove portion 56 of the protruding portion 55 of the second side surface portion 6D and the portion adjacent to the indoor side of the fourth receiving portion 6H, and extends in the longitudinal direction (vertical direction) of the vertical frame 6 and the protruding portion 55. Extends. Further, the watertight material 73 protrudes toward the gap 8 from the second side surface portion 6D at a position adjacent to the indoor side of the groove portion 56. The outdoor space 8B of the gap 8 is formed on the side of the groove portion 56, which is a portion on the outdoor side of the second side surface portion 6D relative to the watertight material 73.

The curtain wall unit 2 includes four insulating materials 74. The exposed portions 6J of the overhang portion 6A are the end surface portion 6B, the first side surface portion 6C, the groove portion 56 which is a portion of the second side surface portion 6D on the outdoor side of the watertight material 73, and the receiving portions 6E to 6H. The end surface portion 6B, the first side surface portion 6C, and the first to third receiving portions 6E to 6G, which are the exposed portions 6J, are covered by the first cover 30. Further, the end surface portion 6B, which is the exposed portion 6J, the groove portion 56, and the third and fourth receiving portions 6G and 6H are covered by the second cover 40.

The first cover 30 has three mounting parts 34 to 36 (a first mounting part 34, a second mounting part 35, and a third mounting part 36). The first mounting part 34 is located at the end of the first cover part 31 and the first cover 30 on the indoor side. The second mounting part 35 and the third mounting part 36 are located at the end of the first cover 30 on the outdoor side. Further, the second mounting portion 35 is located at an intermediate portion of the second cover portion 32 in the left-right direction R, and the third mounting portion 36 is located at the tip of the second cover portion 32 on the gap 8 side.

The insulating material 74 is provided between the first mounting part 34 and the first receiving part 6E, between the second mounting part 35 and the second receiving part 6F, and between the third mounting part 36 and the third receiving part 6G. established in The mounting portions 34 to 36 and the first cover 30 are received by the receiving portions 6E to 6G with an insulating material 74 interposed between the receiving portions 6E to 6G of the projecting portion 6A, and the receiving portions 6E to 6G and the It is attached to the exposed portion 6J (end surface portion 6B, first side surface portion 6C) of the protruding portion 6A.

The cover portion 41 of the second cover 40 is located on the gap 8 (outdoor side space 8B) side with respect to the groove portion 56 of the second side surface portion 6D, which is the exposed portion 6J, and is disposed within the groove portion 56. In the separated state, the groove portion 56 is covered from the gap 8 side. The insulating material 74 is provided between the outdoor mounting part 42 of the second cover 40 and the third receiving part 6G, and between the indoor mounting part 43 of the second cover 40 and the fourth receiving part 6H. The mounting parts 42, 43 and the second cover 40 are received by the receiving parts 6G, 6H with an insulating material 74 interposed between the receiving parts 6G, 6H of the overhanging part 6A, and the receiving parts 6G, 6H and the tension It is attached to the exposed portion 6J (end surface portion 6B, groove portion 56 of the second side surface portion 6D) of the protruding portion 6A. In this state, the second cover 40 is fixed to the exposed portion 6J (groove portion 56) of the overhang portion 6A by the fixture 82. The second cover 40 and the guide rail 90 cover the groove portion 56.

In the curtain wall unit 2 of the second embodiment, the exposed portion 6J of the overhang portion 6A, which is the protrusion portion 55 of the vertical frame main body 50, is prevented from being exposed to the outside air, and the temperature of the overhang portion 6A and the vertical frame 6 is reduced. The decrease can be suppressed.

(Third embodiment)
FIG. 7 is a cross-sectional view showing the curtain wall unit 2 of the third embodiment, and similarly to FIG. 5, it shows the vertical frame 6 side of two curtain wall units 2 adjacent in the left-right direction R. . FIG. 8 is an exploded cross-sectional view showing the vertical frame 6 and covers 30, 40 of the curtain wall unit 2 of the third embodiment, and similarly to FIG. 6, the left and right vertical frames 6 and the cover shown in FIG. The left vertical frame 6 and the covers 30 and 40 are shown.

As shown in the figure, in the curtain wall unit 2 of the third embodiment, the vertical frame 6 has a vertical frame main body 50 that forms the opening 3A, and the vertical frame main body 50 is located at a position on the outdoor side of the panel body 2A. It has a protruding portion 55 that protrudes up to the point. However, the vertical frame 6 does not have the overhang material 60, and the overhang part 6A of the vertical frame 6 is the protrusion part 55 of the vertical frame main body 50. In this way, the overhanging portion 6A does not include the overhanging material 60 and consists only of the protruding portion 55 of the vertical frame body 50.

The protruding portion 55 of the vertical frame main body 50 does not have an engaged portion 55A and a fixed portion 55B, but has a protruding piece 57. The protruding piece 57 is provided at the end of the protruding portion 55 on the outdoor side, and protrudes toward the opening 3A side of the frame 3 in the left-right direction R. The end surface portion 6B of the projecting portion 6A is a portion that becomes the end surface (tip surface) on the outdoor side of the protrusion portion 55, and is a finding portion (end surface portion) on the outdoor side of the protrusion portion 55 including the protrusion piece 57. The left and right side portions 6C and 6D of the overhang portion 6A are side portions 6C and 6D of the protrusion portion 55, respectively. The projecting piece 57 is located at the end of the first side surface portion 6C on the outdoor side.

The projecting portion 6A of the vertical frame 6 has three receiving portions 6E to 6G (a first receiving portion 6E, a second receiving portion 6F, and a third receiving portion 6G). The first receiving portion 6E and the second receiving portion 6F are provided on the first side surface portion 6C and are located at the end portions of the protruding portion 55, the overhanging portion 6A, and the first side surface portion 6C on the indoor side. . The third receiving portion 6G is a protrusion piece 57, which is provided on the end surface portion 6B, and is located at the end portion of the protrusion portion 55, the overhang portion 6A, and the first side surface portion 6C on the outdoor side. 6B on the opening 3A side.

The curtain wall unit 2 includes four insulating materials 74. The exposed portions 6J of the projecting portion 6A are the end surface portion 6B, the first side surface portion 6C, and the receiving portions 6E to 6G. The end surface portion 6B, the first side surface portion 6C, and the receiving portions 6E to 6G, which are the exposed portions 6J, are covered by the first cover 30. The first cover 30 is arranged on the opening 3A side of the frame 3 with respect to the overhang 6A, and covers the exposed portion 6J from the opening 3A side. Further, the end surface portion 6B, which is the exposed portion 6J, and the third receiving portion 6G are covered by the second cover 40. The second cover 40 is arranged on the outdoor side with respect to the projecting portion 6A, and covers the exposed portion 6J from the outdoor side.

The first cover 30 does not have the second cover part 32, but has a concave groove part 38 formed in the first cover part 31. The groove portion 38 is formed in the outdoor side portions of the first cover 30 and the first cover portion 31, and is open toward the opening 3A side of the frame body 3 in the left-right direction R. The first cover portion 31 covers the first side surface portion 6C, is located on the indoor side with respect to the end surface portion 6B (protrusion piece 57) which is the exposed portion 6J, and is provided with the end surface by the outdoor wall portion of the groove portion 38. The end face part 6B is covered from the indoor side while being separated from the part 6B. The first cover 30 has three mounting parts 34 to 36 (a first mounting part 34, a second mounting part 35, and a third mounting part 36). The first mounting part 34 and the second mounting part 35 are located at the ends of the first cover part 31 and the first cover 30 on the indoor side. The third attachment part 36 is located at the end of the first cover 30 on the outdoor side.

The insulating material 74 is provided between the first mounting part 34 and the first receiving part 6E, between the second mounting part 35 and the second receiving part 6F, and between the third mounting part 36 and the third receiving part 6G. established in The insulating material 74 between the first mounting part 34 and the first receiving part 6E is fixed to the exposed part 6J of the projecting part 6A (the first side surface part 6C of the projecting part 55) by a fixing device 83 which is a screw. . The mounting portions 34 to 36 and the first cover 30 are received by the receiving portions 6E to 6G with an insulating material 74 interposed between the receiving portions 6E to 6G of the projecting portion 6A, and the receiving portions 6E to 6G and the It is attached to the exposed portion 6J (end surface portion 6B, first side surface portion 6C) of the protruding portion 6A. In this state, the second mounting portion 35 of the first cover 30 is fixed to the exposed portion 6J (first side surface portion 6C of the protruding portion 55) by the fixture 81.

The cover portion 41 of the second cover 40 is formed in a hollow shape. The cover portion 41 is located on the outdoor side with respect to the end surface portion 6B, which is the exposed portion 6J, and covers the end surface portion 6B from the outdoor side while being separated from the end surface portion 6B. The second cover 40 does not have the outdoor mounting part 42 and the indoor mounting part 43, but has a mounting part 44 (opposing mounting part) facing the end surface part 6B. The insulating material 74 is provided between the mounting portion 44 of the second cover 40 and the third receiving portion 6G. The mounting part 44 and the second cover 40 are received by the third receiving part 6G with an insulating material 74 interposed between the third receiving part 6G of the projecting part 6A, and the third receiving part 6G and the projecting part It is attached to the exposed portion 6J (end surface portion 6B) of 6A. In this state, the second cover 40 is fixed to the exposed portion 6J (the protruding piece 57 which is the end surface portion 6B) of the projecting portion 6A by the fixture 82.

The watertight material 73 is attached between the end surface portion 6B and the second cover 40 at a location on the gap 8 side of the overhang portion 6A and the second cover 40, and extends in the longitudinal direction of the vertical frame 6 and the projection portion 55. Extends. Further, the watertight material 73 protrudes from the second cover 40 toward the gap 8 at a position on the outdoor side of the end surface portion 6B, and is disposed on the outdoor side of the gap 8. The watertight materials 73 that overlap each other shut off water in the area between the second covers 40 that are adjacent to each other in the left-right direction R. When the overhanging portions 6A of the vertical frames 6 adjacent in the left-right direction R are viewed from the outdoor side, the watertight material 73 of the vertical frames 6 adjacent in the left-right direction R forms the gap 8, the second side surface portion 6D, and the overhang. A portion of the portion 6A facing the gap 8 is shielded.

The guide rail 90 is formed on the first cover 30 located on one side in the left-right direction R of the overhanging portion 6A of the vertical frame 6 (here, on the opening 3A side of the frame 3). constitute a part. The first cover 30 is located on the opening 3A side of the overhang 6A and covers the exposed portion 6J on the opening 3A side of the overhang 6A. The guide rail 90 is the groove portion 38 of the first cover 30, and is open toward the opening 3A side in the left-right direction R. The groove portion 38 and the guide rail 90 of the first cover 30 are located on the opening 3A side of the outdoor side portion of the overhang portion 6A, and the exposed portion 6J on the opening 3A side of the outdoor side portion of the overhang portion 6A. (The end surface portion 6B and the first side surface portion 6C) are covered. The connecting member 22 extends from the gondola body to the first cover 30. The guide roller 21 is located at the opening 3A with respect to the guide rail 90 and is arranged inside the guide rail 90.

In the curtain wall unit 2 of the third embodiment, the exposed portion 6J of the overhang portion 6A, which is the protrusion portion 55 of the vertical frame main body 50, is prevented from being exposed to the outside air, and the temperature of the overhang portion 6A and the vertical frame 6 is reduced. The decrease can be suppressed.

(Fourth embodiment)
FIG. 9 is a cross-sectional view showing the curtain wall unit 2 of the fourth embodiment, and similarly to FIG. 7, it shows the vertical frame 6 side of two curtain wall units 2 adjacent in the left-right direction R. . FIG. 10 is an exploded cross-sectional view showing the vertical frame 6 and covers 30, 40 of the curtain wall unit 2 of the fourth embodiment, and similarly to FIG. 8, the left and right vertical frames 6 and the cover shown in FIG. The left vertical frame 6 and the covers 30 and 40 are shown.

As illustrated, in the curtain wall unit 2 of the fourth embodiment, the vertical frame 6 includes a vertical frame main body 50 forming the opening 3A, and a vertical frame main body 50 that is attached to the vertical frame main body 50 and extends from the vertical frame main body 50 toward the outdoor side. It has a projecting member 60. However, the vertical frame main body 50 does not have the protruding part 55, and the overhanging part 6A of the vertical frame 6 is an overhanging material 60. In this way, the projecting portion 6A does not include the projecting portion 55 of the vertical frame main body 50, and is made of only the projecting material 60.

The holding portion 51 of the vertical frame main body 50 has a detachable ridge 51A, and the ridge 51A holds the vertical edge 2B of the panel body 2A from the outdoor side. Further, the vertical frame main body 50 has an outdoor finding portion 58 and an engaged portion 58A with which the overhanging member 60 engages. The overhanging member 60 is located on the outdoor side of the finding section 58 and extends to a position on the outdoor side beyond the finding section 58. The finding part 58 is located on the gap 8 side of the holding part 51, and the engaged part 58A is provided on the outdoor side of the finding part 58. The engaging portion 61 of the overhanging member 60 engages with the engaged portion 58A of the finding portion 58. In this state, the fixture 80 fixes the overhanging material 60 to the finding portion 58. As a result, the overhanging material 60 (in this case, the end on the indoor side) is attached to the finding part 58, which is the end on the outdoor side of the vertical frame main body 50, on the outdoor side of the finding part 58. Extends to the outside of the room.

The overhanging member 60 does not have the fixed part 62 and the groove part 63, but has a protruding piece 64. The protruding piece 64 is provided at the end of the overhanging member 60 on the outdoor side, and protrudes toward the opening 3A side of the frame body 3 in the left-right direction R. The end surface portion 6B of the overhang portion 6A is an end surface portion on the outdoor side of the overhang member 60 including the projecting piece 64. The left and right side portions 6C and 6D of the overhang portion 6A are side portions 6C and 6D of the overhang member 60, respectively. The protruding piece 64 is provided on the end surface portion 6B and is located at the end portion on the outdoor side of the first side surface portion 6C.

The projecting portion 6A of the vertical frame 6 has three receiving portions 6E to 6G (a first receiving portion 6E, a second receiving portion 6F, and a third receiving portion 6G). The first receiving portion 6E and the second receiving portion 6F are provided on the first side surface portion 6C. Further, the first receiving portion 6E is located at the end of the overhang 60, the overhang 6A, and the first side surface portion 6C on the indoor side, and the second receiving portion 6F is located at the end of the overhang 60, the overhang 6A, and the first side surface portion 6C. It is located at an intermediate portion in the indoor/outdoor direction S between the portion 6A and the first side surface portion 6C. The third receiving portion 6G is a projecting piece 64, which is provided on the end surface portion 6B, and is located at the outdoor end of the overhang member 60, the overhang portion 6A, and the first side surface portion 6C. It is located on the opening 3A side of the portion 6B.

The curtain wall unit 2 includes four insulating materials 74. The exposed portions 6J of the projecting portion 6A are the end surface portion 6B, the first side surface portion 6C, and the receiving portions 6E to 6G. The end surface portion 6B, the first side surface portion 6C, and the receiving portions 6E to 6G, which are the exposed portions 6J, are covered by the first cover 30. The first cover 30 is arranged on the opening 3A side of the frame 3 with respect to the overhang 6A, and covers the exposed portion 6J from the opening 3A side. Further, the end surface portion 6B, which is the exposed portion 6J, and the third receiving portion 6G are covered by the second cover 40. The second cover 40 is arranged on the outdoor side with respect to the projecting portion 6A, and covers the exposed portion 6J from the outdoor side.

The first cover 30 does not have the second cover part 32, but has a concave groove part 38 formed in the first cover part 31. The groove portion 38 is formed in the indoor side portions of the first cover 30 and the first cover portion 31, and is open toward the opening 3A side of the frame body 3 in the left-right direction R. The first cover portion 31 covers the first side surface portion 6C, is located on the indoor side with respect to the end surface portion 6B (projection piece 64) which is the exposed portion 6J, and is spaced apart from the end surface portion 6B. Cover 6B from the indoor side. The first cover 30 has three mounting parts 34 to 36 (a first mounting part 34, a second mounting part 35, and a third mounting part 36). The first mounting part 34 is located at the end of the first cover part 31 and the first cover 30 on the indoor side. The second mounting part 35 is connected to the groove part 38 and is located on the outdoor side of the groove part 38, and is also located in the middle part of the first cover part 31 and the first cover 30 in the indoor-outdoor direction R. The third attachment part 36 is located at the end of the first cover 30 on the outdoor side.

The insulating material 74 is provided between the first mounting part 34 and the first receiving part 6E, between the second mounting part 35 and the second receiving part 6F, and between the third mounting part 36 and the third receiving part 6G. established in The insulating material 74 between the first mounting part 34 and the first receiving part 6E is fixed to the exposed part 6J of the overhang part 6A (the first side surface part 6C of the overhang material 60) with a fixing device 83 which is a screw. Ru. The mounting portions 34 to 36 and the first cover 30 are received by the receiving portions 6E to 6G with an insulating material 74 interposed between the receiving portions 6E to 6G of the projecting portion 6A, and the receiving portions 6E to 6G and the It is attached to the exposed portion 6J (end surface portion 6B, first side surface portion 6C) of the protruding portion 6A. In this state, the first cover 30 is fixed to the exposed portion 6J of the overhang portion 6A (the first side surface portion 6C of the overhang member 60) by the fixture 81. The fixture 81 fixes the second mounting portion 35 of the first cover 30 to the exposed portion 6J.

The cover portion 41 of the second cover 40 is formed in a hollow shape. The cover portion 41 is located on the outdoor side with respect to the end surface portion 6B, which is the exposed portion 6J, and covers the end surface portion 6B from the outdoor side while being separated from the end surface portion 6B. The second cover 40 does not have the outdoor mounting part 42 and the indoor mounting part 43, but has a mounting part 44 (opposing mounting part) facing the end surface part 6B. The insulating material 74 is provided between the mounting portion 44 of the second cover 40 and the third receiving portion 6G. The mounting part 44 and the second cover 40 are received by the third receiving part 6G with an insulating material 74 interposed between the third receiving part 6G of the projecting part 6A, and the third receiving part 6G and the projecting part It is attached to the exposed portion 6J (end surface portion 6B) of 6A. In this state, the second cover 40 is fixed to the exposed portion 6J (the protruding piece 64 which is the end surface portion 6B) of the projecting portion 6A by the fixing member 82.

The watertight material 73 is attached between the end surface portion 6B and the second cover 40 at a location on the gap 8 side of the overhang portion 6A and the second cover 40, and extends in the longitudinal direction of the vertical frame 6 and the projection portion 55. Extends. Further, the watertight material 73 protrudes from the second cover 40 toward the gap 8 at a position on the outdoor side of the end surface portion 6B, and is disposed on the outdoor side of the gap 8. The watertight materials 73 that overlap each other shut off water in the area between the second covers 40 that are adjacent to each other in the left-right direction R. When the overhanging portions 6A of the vertical frames 6 adjacent in the left-right direction R are viewed from the outdoor side, the watertight material 73 of the vertical frames 6 adjacent in the left-right direction R forms the gap 8, the second side surface portion 6D, and the overhang. A portion of the portion 6A facing the gap 8 is shielded.

The guide rail 90 is formed on the first cover 30 located on one side in the left-right direction R of the overhanging portion 6A of the vertical frame 6 (here, on the opening 3A side of the frame 3). constitute a part. The first cover 30 is located on the opening 3A side of the overhang 6A and covers the exposed portion 6J on the opening 3A side of the overhang 6A. The guide rail 90 is the groove portion 38 of the first cover 30, and is open toward the opening 3A side in the left-right direction R. The groove portion 38 and the guide rail 90 of the first cover 30 are located on the opening 3A side of the indoor side portion of the overhang portion 6A, and the exposed portion 6J on the opening 3A side of the indoor side portion of the overhang portion 6A. (first side surface portion 6C). The connecting member 22 extends from the gondola body to the first cover 30. The guide roller 21 is located at the opening 3A with respect to the guide rail 90 and is arranged inside the guide rail 90.

In the curtain wall unit 2 of the fourth embodiment, the exposed portion 6J of the overhang portion 6A, which is the overhang material 60 attached to the vertical frame main body 50, is prevented from being exposed to the outside air, and the overhang portion 6A and the vertical frame 6J are prevented from being exposed to the outside air. The decrease in temperature can be suppressed.

As mentioned above, the curtain wall unit is
A curtain wall unit comprising a panel body disposed in an opening formed by a vertical frame,
The vertical frame has an overhang that extends to a position on the outdoor side of the panel body,
a cover that covers an exposed portion of the overhang portion that is exposed to the outside;
an insulating material interposed between the overhang and the cover;
It is a curtain wall unit with
Therefore, it is possible to reduce the decrease in temperature of the vertical frame due to the overhanging portion extending outward from the panel body of the curtain wall unit toward the outside, and to suppress the formation of dew condensation on the surface of the vertical frame on the indoor side.

The cover has a guide rail for guiding the gondola.
Therefore, it is possible to prevent the overhang from being exposed to the outside air and to reduce the cooling of the overhang and the vertical frame due to the outside air.

The guide rail is formed on the cover located on one side of the projecting portion in the left-right direction.
Therefore, no matter where the guide rail is provided on either side of the overhang in the left-right direction, it is possible to suppress dew condensation from forming on the indoor side surface of the vertical frame.

The vertical frame has a vertical frame main body forming the opening, and an overhang attached to the vertical frame main body,
The vertical frame body has a protrusion that protrudes to a position on the outdoor side of the panel body,
The overhanging material is attached to the protrusion and extends from the protrusion to an outdoor side,
The projecting portion includes the projecting portion and the projecting material.
Therefore, the cover prevents the exposed portion of the overhang made of the protrusion of the vertical frame main body and the overhang material attached to the protrusion from being exposed to the outside air, thereby reducing the temperature of the overhang and the vertical frame. Can be suppressed.

The vertical frame has a vertical frame body that forms the opening,
The vertical frame body has a protrusion that protrudes to a position on the outdoor side of the panel body,
The projecting portion is the protruding portion.
Therefore, the exposed portion of the overhang, which is a protrusion of the vertical frame main body, is prevented from being exposed to the outside air, and a decrease in temperature of the overhang and the vertical frame can be suppressed.

The vertical frame has a vertical frame main body that forms the opening, and an overhang that is attached to the vertical frame main body and extends from the vertical frame main body to the outdoor side,
The overhang portion is the overhang material.
Therefore, the exposed portion of the overhang, which is an overhang material attached to the vertical frame main body, is prevented from being exposed to the outside air, and a decrease in temperature of the overhang and the vertical frame can be suppressed.

DESCRIPTION OF SYMBOLS 1... Curtain wall, 2... Curtain wall unit, 2A... Panel body, 2B... Vertical edge, 3... Frame body, 3A... Opening, 4... Top frame , 5... Lower frame, 6... Vertical frame, 6A... Overhang portion, 6B... End surface portion, 6C... First side surface portion, 6D... Second side surface portion, 6E. ...first receiving part, 6F...second receiving part, 6G...third receiving part, 6H...fourth receiving part, 6I...fifth receiving part, 6J...exposed part, 7... No eyes, 8... Gap, 8A... Indoor space, 8B... Outdoor space, 10... Building, 11... Outer wall, 20... Gondola, 21... - Guide roller, 22... Connecting member, 30... First cover, 31... First covering part, 32... Second covering part, 33... Gap closing material, 34... Third 1 mounting part, 35... 2nd mounting part, 36... 3rd mounting part, 37... 4th mounting part, 38... groove part, 40... 2nd cover, 41... cover Part, 42... Outdoor mounting part, 43... Indoor mounting part, 44... Mounting part, 50... Vertical frame main body, 51... Holding part, 51A... Ribbed edge, 52... ...Indoor side part, 53...First attached part, 54...Second attached part, 55...Protrusion part, 55A...Engaged part, 55B...Fixed part, 56...Groove part, 57...Protruding piece, 58...Finding part, 58A...Engaged part, 60...Overhanging material, 61...Engaging part, 62...Fixing Part, 63...Groove portion, 64...Protruding piece, 70...Watertight material, 71...Airtight material, 72...Espobaric space, 73...Watertight material, 74...Insulating material , 80... Fixture, 81... Fixture, 82... Fixture, 83... Fixture, 90... Guide rail, R... Left and right direction, S... Indoor/outdoor direction .

Claims (6)

A curtain wall unit comprising a panel body disposed in an opening formed by a vertical frame,
The vertical frame has an overhang that extends to a position on the outdoor side of the panel body,
a cover that covers an exposed portion of the overhang portion that is exposed to the outside;
an insulating material interposed between the overhang and the cover;
Curtain wall unit with. The curtain wall unit according to claim 1,
The cover is a curtain wall unit having a guide rail for guiding the gondola. The curtain wall unit according to claim 2,
The guide rail is a curtain wall unit formed on the cover located on one side in the left-right direction of the overhang. The curtain wall unit according to any one of claims 1 to 3,
The vertical frame has a vertical frame main body forming the opening, and an overhang attached to the vertical frame main body,
The vertical frame body has a protrusion that protrudes to a position on the outdoor side of the panel body,
The overhanging material is attached to the protrusion and extends from the protrusion to an outdoor side,
The projecting portion is a curtain wall unit including the projecting portion and the projecting material. The curtain wall unit according to any one of claims 1 to 3,
The vertical frame has a vertical frame body that forms the opening,
The vertical frame body has a protrusion that protrudes to a position on the outdoor side of the panel body,
The projecting portion is a curtain wall unit that is the projecting portion. The curtain wall unit according to any one of claims 1 to 3,
The vertical frame has a vertical frame main body that forms the opening, and an overhang that is attached to the vertical frame main body and extends from the vertical frame main body to the outdoor side,
The overhang portion is a curtain wall unit that is the overhang material.

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