JP4536296B2 - curtain wall - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a curtain wall of a building, and more particularly to a curtain wall that improves airtightness and watertightness of a rectangular frame of a curtain wall unit and a panel such as a glass plate fitted therein.
[0002]
[Prior art]
As is well known, a curtain wall is a non-strength wall that covers the outside of a building by arranging and fixing a number of panel-like curtain wall units adjacent to each other vertically and horizontally on the outside of the building housing. As a curtain wall unit, there are a curtain wall unit whose main surface is made of a glass plate and a curtain wall unit which is entirely composed of an opaque panel.
[0003]
The curtain wall unit usually has a quadrangular shape, and its outer peripheral frame has a pair of vertical frames on both sides, an upper horizontal frame that connects the upper ends of the vertical frames on both sides, and a lower frame that connects the lower ends of the vertical frames on both sides. It consists of a horizontal frame. Such an outer peripheral frame is a square frame, and this glass frame is used as a strength member, and a glass sash, a glass plate, an outer wall panel, and the like are attached thereto.
[0004]
Sealing means is provided at the joint between the outer peripheral frame and a panel such as a glass plate or an outer wall panel in order to obtain airtightness and watertightness. That is, the outer side of the panel is fitted into a panel fitting groove formed on the inner side of the square frame, and the inner contact portion of the panel fitting groove and the panel are provided between the inner and outer walls of the panel fitting groove and the panel peripheral part. A rectangular inner gasket for holding the panel so as to be interposed between the inner side edges of the panel and a sealing means such as a gasket interposed between the outer abutting portion of the panel fitting groove and the outer side edge of the panel. Each is provided to maintain airtightness and watertightness.
[0005]
[Problems to be solved by the invention]
By the way, a rectangular inner gasket for holding the panel is provided between the inner and outer walls of the panel fitting groove and the peripheral portion of the panel so as to be interposed between the inner contact portion of the panel fitting groove and the inner side of the panel. However, even if the inner gasket is attached so that it is pressed tightly against the four sides of the panel, the corners at the four corners are not sufficiently sealed compared to the straight part of the inner gasket, and air leakage occurs as a whole. There was a problem that the airtightness and watertightness of the water would deteriorate.
[0006]
The present invention has been made to solve the above-mentioned problems, and its purpose is to provide sufficient sealing at the four corners as well as the straight part of the inner gasket, and it is totally airtight and watertight. There is to obtain an excellent curtain wall.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, a curtain wall according to the present invention includes a pair of vertical frames on both sides, an upper horizontal frame that connects the upper ends of the vertical frames on both sides, and a lower horizontal that connects the lower ends of the vertical frames on both sides. A large number of curtain wall units having a square frame composed of a frame are arranged adjacent to each other in the vertical and horizontal directions, and a panel that partitions the inside and outside is fitted in a rectangular space surrounded by the square frame of each curtain wall unit, The outer side of the panel is fitted into a panel fitting groove formed on the inner side of the rectangular frame, and between the panel fitting groove and the panel peripheral part, an inner abutting part of the panel fitting groove and an inner surface side part of the panel A rectangular inner gasket for holding the panel is provided so as to be interposed between the two, and a sealing means is provided between the outer abutting portion of the panel fitting groove and the outer surface side portion of the panel. In the curtain wall of the building where the watertightness is maintained, each of the four corners of the rectangular inner gasket is provided with an angle-shaped elastic sealing material along the corners of the inner side of the panel and the rectangular inner side. It is provided in the state pinched between the gaskets.
[0008]
The angle-shaped elastic sealing material is suitably bonded to the surface of the inner gasket, and is typically formed of sponge rubber. The panel is typically a glass plate.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
FIG. 1 shows a building curtain wall CW in elevation. As is well known, the curtain wall CW is composed of a plurality of curtain wall units CU arranged vertically and horizontally adjacent to each other. Each curtain wall unit CU corresponds to a cross hatched portion. The single curtain wall unit CU is as shown in FIG. 2, and a pair of vertical frames 2 and 2 on both sides, an upper horizontal frame 3a connecting the upper ends of the vertical frames 2 and 2 on both sides, It has an outer peripheral frame composed of a lower horizontal frame 3b that connects the lower ends of the vertical frames 2 and 2. This outer peripheral frame is a rectangular frame.
[0011]
In the illustrated embodiment, the curtain wall unit CU includes an upper single glass portion 4a and a lower double glass portion 4b. However, the configuration of the curtain wall unit is not limited to this. The inside of the outer peripheral frame can be constituted by a suitable panel, or only a part thereof can be constituted by a glass plate portion.
[0012]
In FIG. 3, which is a longitudinal sectional view, the range of each curtain wall unit is indicated by CU, the single glass portion 4a corresponds to the height of the concrete floor 5 and the ceiling 6, and the double glass portion 4b is resident. Each curtain wall unit CU is attached to the building frame so as to correspond to the height of the opening of the space.
[0013]
FIG. 4 is a cross-sectional plan view showing a cross section taken along line 4A-4A in FIG. 3 on the right half and a cross section taken along line 4B-4B in the left half. In FIG. 4, the range of each curtain wall unit is the range of CU. On the both sides of the curtain wall unit CU, the above-described vertical frames 2 and 2 are provided in the vertical (vertical) direction. And the attachment metal fitting 10 is attached inside the curtain wall of each vertical frame 2 with respect to the inside and outside directions, and each vertical frame 2 is attached to the edge of the concrete floor 5 of the building frame via this attachment metal fitting 10. ing. In addition, since the vertical frame 2 shown on the left side of FIG. 4 is shown in a cross section lower than the concrete floor 5, the mounting bracket 10 is not shown. The right side of FIG. 4 is a height corresponding to the single glass portion 4a, and the single glass portion 4a is mounted between the left and right vertical frames 2 and 2. A fireproof board 11 is mounted between the left and right vertical frames 2 and 2 inside the single glass portion 4a. The lower double glass portion 4b is also mounted between the left and right vertical frames 2 and 2.
[0014]
FIG. 5 is an enlarged view of the vertical frame 2 shown on the right side of FIG. As shown in FIG. 5, the vertical frames 2 of the two curtain wall units CU adjacent to the left and right are arranged facing each other in the left-right direction. The main body of each vertical frame 2 is made of, for example, an aluminum mold 13, and the mold 13 has a first vertical groove 14 a, a second vertical groove 14 b, and a third A vertical groove 14 c is formed along the longitudinal direction of the vertical frame 2. The first vertical groove 14a is located on the outermost side with respect to the inner and outer directions of the curtain wall, the second vertical groove 14b is located on the innermost side with respect to the inner and outer directions of the curtain wall, and the third vertical groove 14c is the first vertical groove. 14a and the second vertical groove 14b. These three longitudinal grooves are formed by projecting longitudinal partition walls 15, 16, 17, 18 in parallel from the bottom plate portion of the mold 13.
[0015]
The first vertical groove 14a is used to mount a rain barrier gasket 21 that closes the gap 20 between the pair of vertical frames 2 and 2 facing each other. The second vertical groove 14b is used to mount a wind barrier gasket 22 that closes the gap 20 between the pair of vertical frames 2 and 2 facing each other. The rain barrier gasket 21 prevents rainwater from entering the gap 20 and the wind barrier gasket 22 prevents outdoor air from entering the gap 20 due to wind or the like. The third vertical groove 14c forms an isolation space 25 between the pair of vertical frames 2 and 2 facing each other. The isolation space 25 provides a space in which rainwater enters the inside through the rain barrier gasket 21 and flows down without reaching the wind barrier gasket 22.
[0016]
The rain barrier gasket 21 is composed of a pair of left and right gaskets. In FIG. 5 and FIG. 6 which is an enlarged view of a part thereof, the rain barrier gasket 21 attached to the left first vertical groove 14a is vertically fitted in the inlet portion of the first vertical groove 14a. A long U-shaped cross-sectional tip 27 extends in the vertical direction so as to cross the gap 20. The tip 27 is made of a relatively hard elastic material. 5 and 6, the rain barrier gasket 21 attached to the first vertical groove 14a on the right side has a longitudinally long base end portion 26 that is fixedly fitted to the inlet portion of the vertical groove 14a. One plate-like distal end portion 28 extends in the longitudinal direction from the base end portion 26 so as to cross the gap 20. The plate-like tip portion 28 is also formed of a relatively hard elastic material. The plate-like tip 28 protrudes into the U-shaped groove-like tip 27. A gap 29 is formed between the plate-like tip portion 28 and the U-shaped cross-sectional groove-like tip portion 27. Since both side walls of the U-shaped cross-section groove-shaped front end portion 27 and the plate-shaped front end portion 28 are in a zigzag shape, even if there is a gap 29 between them, the rainwater that has entered from the outside has a complicated shape. In practice it is prevented from entering. Therefore, the rain barrier gasket 21 is sealed against rainwater from the outside.
[0017]
The window barrier gasket 22 is constituted by a pair of equal gaskets. Each gasket 22 is fixed by inserting a longitudinally long base end portion 30 into one of the second longitudinal grooves 14b and 14b, and is integrated with the base end portion 30 in the longitudinal direction. A flat cross-section tubular body 31 is provided. The flat cross-section tubular body 31 is made of a deformable elastic material, and each flat cross-section tubular body 31 is configured to abut against the flat cross-section tubular body 31 of the other gasket 22 with a repulsive force. In this way, the flat cross-section tubular bodies 31 come into contact with each other, so that a sealing action against wind is obtained.
[0018]
A vertical frame extension 2B and a vertical frame extension 2C extending inward in the curtain wall inside / outside direction are integrally formed on the outside of the vertical frame 2 described above in the curtain wall inside / outside direction. In this embodiment, the extension portion 2B is composed of a longitudinal flat plate portion extending outward from the tip of the partition wall 15. On the other hand, the extended portion 2C is constituted by a longitudinal plate portion having an L-shaped cross section extending inward from the base portion of the partition wall 18. The outer extension portion 2B fixes the single glass portion 4a through gaskets 33 and 34 on the inner side. On the other hand, the inner extension 2C serves to fix the vertical frame 2 to the floor 5 of the building frame via the mounting bracket 10. In addition, the edge part of the said fireproof board 11 is fixed to the said mold material 13 with the steel metal fittings 35 and 36, for example.
[0019]
The mounting bracket 10 is fixed by through bolts 42 to a fixing base (not shown) fixed along the edge of the floor 5. The mounting bracket 10 has a hole (not shown) that is long in the vertical direction through which the bolt 42 is inserted. The vertical position of the mounting bracket 10 is rotated by rotating the vertical position adjusting bolt 46 that is screwed in the vertical direction from the mounting bracket 10 into a protrusion 45 that protrudes upward from the fixing base and is brought into contact with the upper surface of the fixing base. Thus, the vertical frame 2, that is, the vertical position of the curtain wall unit CU can be finely adjusted. When the bolt 42 is tightened after adjusting the vertical position, the vertical position of the vertical frame 2, that is, the curtain wall unit CU is fixed.
[0020]
The details of the vertical frame 2 on one side of the curtain wall unit CU have been described above. However, the configuration of the vertical frame 2 on the other side is the same, and the description thereof is omitted. Note that the outer extension 2B of the vertical frame 2 on the left side of the curtain wall unit CU shown in FIG. 4 plays a role of attaching the end of the double glass portion 4b provided in the lower part of the curtain wall unit CU.
[0021]
As shown in FIG. 5, the extended portion 2B of the pair of vertical frames 2 facing the left and right of each curtain wall unit CU is the outermost portion in the curtain wall inner and outer direction, and is formed by the outer gasket 33 and the inner gasket 34. The side of the single glass plate 4a is pressed and fixed. The outer gasket 33 and the inner gasket 34 are sealed to suppress the movement of the glass plate 4a in the inner and outer directions and to obtain an airtight and watertight state. The holding of the glass plate by the outer gasket 33 and the inner gasket 34 is the same in the case of the double glass plate 4b in the left half of FIG. 4 and basically has the same configuration.
[0022]
FIG. 9 is an enlarged view of a part of FIG. 3 which is a longitudinal sectional view. In FIG. 9, CU indicates the range in the vertical direction of each curtain wall unit. As described above, the curtain wall unit CU includes the single glass portion 4a and the double glass portion 4b on the upper side and the lower side, respectively. A seamless material 60 is provided between the single glass portion 4a and the double glass portion 4b. Each curtain wall unit CU includes the lower horizontal frame 3b and the upper horizontal frame 3a already described. As the upper horizontal frame 3a, the upper horizontal frame 3a adjacent to the lower side of the curtain wall unit CU is shown in FIG. The lower horizontal frame 3b of the upper curtain wall unit CU and the upper horizontal frame 3a of the lower curtain wall unit CU face each other in the vertical direction. A gap 61 is left between the lower horizontal frame 3b and the upper horizontal frame 3a in the same manner as between the adjacent vertical frames 2 and 2.
[0023]
FIG. 10 is an enlarged view of the main part of FIG. In FIG. 10, the lower horizontal frame 3b is configured in substantially the same manner as the vertical frame 2 already described. The main body of the lower horizontal frame 3b is made of, for example, an aluminum mold, and the first horizontal groove 71a, the second horizontal groove 71b, and the third horizontal groove 71c opened to the lower side are formed in the lower horizontal frame 3b. It is formed along the longitudinal direction. The first lateral groove 71a is located on the outermost side with respect to the inside / outside direction of the curtain wall, the second lateral groove 71b is located on the innermost side with respect to the inside / outside direction of the curtain wall, and the third lateral groove 71c is connected to the first lateral groove 71a and the second lateral groove 71a. Between the horizontal grooves 71b. These three lateral grooves are formed by extending the lateral partition walls 72, 73, 74, 75 in parallel from the bottom plate portion of the mold material.
[0024]
The first horizontal groove 71a is used to mount a rain barrier gasket 77 that closes the gap 61 between the lower horizontal frame 3b and the upper horizontal frame 3a facing each other up and down. The second horizontal groove 71b is used to mount a wind barrier gasket 80 that closes the gap 61 between the lower horizontal frame 3b and the upper horizontal frame 3a facing each other up and down. The rain barrier gasket 77 prevents rainwater from entering the gap 61 from the inside, and the wind barrier gasket 80 prevents air from entering the gap 61 from the inside. These rain barrier gasket 77 and window barrier gasket 80 have the same configuration as that of the rain barrier gasket 21 and window barrier gasket 22 described in the case of the vertical frame.
[0025]
The third horizontal groove 71c forms an isolation space 81 between the lower horizontal frame 3b and the upper horizontal frame 3a facing each other vertically. The isolation space 81 provides a space in which rainwater enters the inside through the rain barrier gasket 77 and flows down without reaching the wind barrier gasket 80.
[0026]
The rain barrier gasket 77 has a laterally long base portion 78 fitted into the inlet portion of the first lateral groove 71a of the lower lateral frame 3b, and a sealing piece 79 that extends laterally from the base portion 78 across the gap 61. Is extended. The sealing piece 79 overlaps the outer surface of the lateral rib 84 integrally protruded from the middle of the upper horizontal frame 3a of the lower curtain wall unit CU upward as shown in the figure. Provides a sealing action against rainwater.
[0027]
Further, the wind barrier gasket 80 is formed of a tubular body having a horizontally flat cross section protruding from the base end portion 86 with a base end portion 86 which is long in the horizontal direction inserted and fixed in the second lateral groove 71b. A tip end 88 is provided. Further, a similar wind barrier gasket 90 fitted in the upper horizontal frame 3a under the same has the same configuration as the wind barrier gasket 80, and a tip portion that comes into contact with the tip portion 88 of the wind barrier gasket 80 in a pressure contact state. have. The pair of opposed wind barrier gaskets 80 and 90 have basically the same configuration as the wind barrier gaskets 21 and 22 described above except that they are installed in the lateral direction. Therefore, in the same manner, a reliable sealing action against wind can be obtained without always applying a strong pressure contact force.
[0028]
The lower horizontal frame 3b described above is integrally formed with a lower frame extension portion 70B extending outward in the curtain wall inner and outer directions and a lower frame extension portion 70C extending inward in the curtain wall inner and outer directions. In this embodiment, the extended portion 70B is made of a grooved material that extends outward from the tip of the partition wall 72. The groove-type extension portion 70B supports the single glass portion 4b through a receiving material 94 and a glass liner 95 inside the groove 93. Reference numerals 96 and 97 denote glass pressing gaskets. On the other hand, the inner extension portion 70 </ b> C is constituted by a lateral plate portion whose longitudinal section extending inward from the base portion of the partition wall 75 has an L shape.
[0029]
The upper horizontal frame 3a can also have a configuration having three horizontal grooves based on the same principle as the lower horizontal frame 3b described above. However, in the embodiment shown in FIGS. The lower horizontal frame 3b has a slightly different configuration. As shown in FIG. 10, in the upper horizontal frame 3a, instead of forming the three horizontal grooves 71a, 71b, 71c as in the lower horizontal frame 3b, one upward horizontal groove 98 corresponding to the horizontal grooves 71a, 71c and the horizontal groove 71b Only one upward transverse groove 99 corresponding to is formed. The reason why it is only necessary to provide only one lateral groove 98 corresponding to the two lateral grooves 71a and 71c of the lower lateral frame 3b is that the one corresponding to the rain barrier gasket 77 fitted into the lateral groove 71a on the lower lateral frame 3b is the upper side. It is not used in the horizontal frame 3a, but instead has an integral rib 84 raised. That is, since it is not necessary to fit the rain barrier gasket into the upper horizontal frame 3a, the rain barrier gasket fitting lateral groove and the isolation space forming lateral groove are combined into one. The base portion 100 of the wind barrier gasket 90 is fitted in the horizontal groove 99 of the upper horizontal frame 3a. The horizontal groove 98 of the upper horizontal frame 3a functions as a soot for flowing rain water or the like that has passed through the rain barrier gasket 77 and entered the inside.
[0030]
As described above, the outer gasket 33 and the inner gasket 34 related to the vertical frame 2 are in contact with the sides of the glass plates 4a and 4b to maintain an airtight and watertight state. The same applies to the horizontal frames 3a and 3b of the horizontal frame 3a, 3b, and the horizontal outer gasket 96 and the inner gasket 97 are in contact with the upper and lower sides of the single glass plate 4a and the double glass plate 4b to hold them, and are airtight and watertight. Maintain state.
[0031]
The configuration related to the outer gasket and the inner gasket, particularly the inner gasket, which abuts against the side of the glass plate and holds the side is the feature of the present invention, and the details thereof will be described below. As is well known, the longitudinal and lateral outer gaskets 33 and 96 and the longitudinal and lateral inner gaskets 34 and 97 are integrated in a rectangular frame shape.
[0032]
FIG. 6 shows details of a gasket that performs pressing and sealing around the double glass plate 4b. As shown in FIG. 6, the vertical frame 2 and the horizontal frames 3a and 3b (the upper horizontal frame 3a is not shown in the figure) are connected to form a rectangular frame, and along the inner side of the rectangular frame, A vertical panel fitting groove 51a and a horizontal panel fitting groove 51b for fitting the periphery of the plate are formed. Therefore, both the panel fitting grooves 51a and 51b form a square panel fitting groove as a whole. The vertical panel fitting grooves 51a on both the left and right sides of the rectangular frame have a vertical outer contact portion 52a that protrudes inward toward the inside of the groove, and a vertical inner contact that protrudes outward toward the inside of the groove. A contact portion 53a is formed. Further, the panel fitting grooves 51b above and below the rectangular frame have a laterally outer abutting portion 52b projecting inward toward the inside of the groove and a laterally inner abutting portion projecting outward toward the inside of the groove. 53b is formed.
[0033]
The two outer contact portions 52a and 52b are connected to each other to form an integral square outer contact portion, and the inner contact portions 53a and 53b are also connected to each other to form an integral square inner contact portion. Configure. A vertical outer gasket 33 and a lateral outer gasket 96 are fitted inside the rectangular outer abutting portions 52a and 52b by fitting, and the vertical inner gaskets are respectively attached to the outer sides of the rectangular inner abutting portions 53a and 53b. 34 and a laterally inner gasket 97 are fitted by fitting. The longitudinal outer gasket 33 and the lateral outer gasket 96 are connected together to form a square outer gasket, and the longitudinal inner gasket 34 and the lateral inner gasket 97 are also connected together to form a square inner gasket. To do.
[0034]
And it inserts and hold | maintains so that the peripheral part of the said glass plate 4b may be pinched | interposed between these square outer gaskets and square inner gaskets. The outer surface of the peripheral portion of the glass plate 4b comes into contact with the rectangular outer gaskets 33 and 96 to form a seal portion. Further, the inner surface of the peripheral portion of the glass plate 4b is brought into contact with the rectangular inner gaskets 34 and 97 to form a seal portion.
[0035]
As described at the beginning, in the prior art, even when a panel, that is, a rectangular inner gasket for holding a glass plate, is mounted so as to be pressed tightly against the four sides of the glass plate, it has four corners compared to the straight portion of the inner gasket. There is a problem in that the corner portion is not sufficiently sealed, air leakage occurs, and the overall airtightness and watertightness deteriorate. According to the present invention, the following configuration is adopted in order to solve such a problem and to perform sufficient sealing at the four corners as well as the straight part of the inner gasket.
[0036]
That is, as shown in FIG. 6, each of the four corners of the rectangular inner gaskets 34, 97 has an angle-shaped elastic sealing material 55 along the corners, and the side of the inner surface of the glass plate 4 b and the rectangular inner gasket 34. , 97 are provided in a state of being sandwiched between them. The angle-shaped elastic sealing material 55 is composed of belt-like arms 55a and 55b that are perpendicular to each other, and the cross section thereof is typically rectangular. The elastic sealing material 55 is preferably made of sponge rubber, but other elastic materials can also be used.
[0037]
The inner gasket 34 (97) is configured to have a cross-sectional shape as shown in FIG. In the state of FIG. 7, the inner gasket 34 (97) has a groove that fits into the protrusion 56 of the inner contact portion 53a on the side that engages with the inner contact portion 53a (53b), and faces the glass plate 4b. For example, three protrusions 57a, 57b, and 57c are integrally provided on the side to be operated. The protrusion 57a protrudes the longest. Further, the protrusions 57a and 57c protrude with components in directions away from each other. When the inner gasket 34 (97) is in pressure contact with the glass plate 4b, the three protrusions 57a, 57b, 57c are pressed against the glass plate 4b and deformed.
[0038]
As shown in FIGS. 7 and 8, the elastic sealing material 55 is formed on the outer side of the inner gaskets 34, 97 along the planar edges without the protrusions 57a, 57b, 57c. It is joined by adhesion or the like so as not to protrude. Then, when the inner gasket 34 (97) is pressed against the glass plate 4b, the elastic sealing material 55 is formed between the inner surface of the glass plate 4b and the inner gasket 34 (97) along with the compressive deformation of the protrusions 57a, 57b, 57c. It is pinched between the outer surfaces and is in close contact with both to ensure a seal at the corner. As shown in FIG. 8, it is preferable that the inner gaskets 34 and 97 are not directly joined but joined via another angle-shaped elastic member 58 provided only for the corner portion. In this case, the elastic sealing material 55 is joined to the region of the angle-shaped elastic member 58.
[0039]
In addition, although it demonstrated above as what seals with respect to the glass plate attached inside a curtain wall unit, arbitrary panels other than a glass plate may be attached inside a curtain wall unit. Therefore, including a glass plate, they are named generically as a panel.
[0040]
【The invention's effect】
As described above, according to the first aspect of the present invention, the angle-shaped elastic sealing material along each corner of each of the four corners of the rectangular inner gasket of the curtain wall unit is attached to the sides of the panel inner surface. By providing it in a state of being sandwiched between the inner gasket and the inner gasket, sufficient sealing can be performed at the corners of the four corners as well as the straight part of the inner gasket, and overall airtightness and watertightness are excellent. A curtain wall can be obtained.
[0041]
Further, as described in claim 2, by joining the angle-shaped elastic sealing material to the surface of the inner gasket, the inner gasket can be easily constructed as a member integral with the angle-shaped elastic sealing material.
[0042]
In the invention of claim 3, by forming the angle-shaped elastic sealing material from sponge rubber, the angle-shaped elastic sealing material is well adapted to the panel surface, and an excellent seal can be obtained.
[0043]
Moreover, according to the invention of Claim 4, the sealing by the inner side gasket of a glass plate is performed suitably.
[Brief description of the drawings]
FIG. 1 is an elevation view showing a curtain wall.
FIG. 2 is an elevation view of a curtain wall unit constituting the curtain wall.
FIG. 3 is a longitudinal sectional view showing a relationship between a curtain wall and a building frame.
4 is a cross-sectional view showing a cross section taken along line 4A-4A in FIG. 3 on the right half and a cross section taken along line 4B-4B in the left half.
FIG. 5 is an enlarged view of the right half part of FIG. 4;
FIG. 6 is a perspective view showing a part of the present invention for pressing and sealing a glass plate with a rectangular gasket.
7 is a cross-sectional view showing a free state of the glass plate pressing and sealing device using the rectangular gasket shown in FIG. 6;
FIG. 8 is an enlarged front view of a corner portion of a rectangular gasket.
9 is an enlarged vertical sectional view of a part of FIG.
10 is a partially enlarged view of FIG. 9;
[Explanation of symbols]
CW Curtain wall CU Curtain wall unit 2 Vertical frame 3a Upper horizontal frame 3b Lower horizontal frame
4a, 4b Glass plate 5 Floor 13 Mold material 21 Rain barrier gasket 22 Wind barrier gasket 25 Isolation space 33, 96 Square outer gasket 34, 97 Square inner gasket 51a, 51b Panel fitting groove 52a, 52b Panel fitting groove outer contact portion 53a 53b Inside contact portion 55 of panel fitting groove Angle elastic seal material 71a First lateral groove 71b Second lateral groove 71c Third lateral groove 77 Rain barrier gasket 80, 90 Wind barrier gasket 81 Isolation space

Claims (4)

A large number of curtain walls having a rectangular frame composed of a pair of vertical frames on both sides, an upper horizontal frame that connects the upper ends of the vertical frames on both sides, and a lower horizontal frame that connects the lower ends of the vertical frames on both sides Units are arranged adjacent to each other vertically and horizontally, and a panel that divides the inside and outside is fitted into a rectangular space surrounded by the rectangular frame of each curtain wall unit, and the outer side of the panel is formed on the inner side of the rectangular frame. A rectangular inner side for holding the panel so as to be interposed between the inner contact part of the panel insertion groove and the inner side of the panel between the panel insertion groove and the panel peripheral part. In the curtain wall of the building, the gasket is also provided with sealing means interposed between the outer abutting portion of the panel fitting groove and the outer surface side portion of the panel, respectively, so that airtightness and watertightness are maintained. Stomach,
Each of the four corners of the rectangular inner gasket is provided with an angle-shaped elastic sealing material along the corner in a state of being sandwiched between the side of the panel inner surface and the rectangular inner gasket. Curtain wall characterized by that. The curtain wall according to claim 1, wherein the angle-shaped elastic sealing material is bonded to a surface of the inner gasket. The curtain wall according to claim 1 or 2, wherein the angle-shaped elastic sealing material is made of sponge rubber. 4. The curtain wall according to claim 1, wherein the panel is a glass plate.

Images