JP5356432B2 - Curtain wall and building using the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a curtain wall capable of ensuring water tightness while improving assembly workability, and a building structure using the same. <P>SOLUTION: A plurality of curtain wall units 10 each having a surface material 15 attached to a frame body consisting of horizontal frame members 11, 12 and vertical frame members 13, 14 are connected with each other, such that the units adjacent each other can be mutually inclined by a prescribed angle, to constitute a curtain wall 1. In the curtain wall 1, a downpipe portion (24) formed by mutual abutment of a first vertical seal member (21) and a second vertical seal member (22) between vertical frame members 13, 14 of the laterally adjacent curtain wall units 10 and a horizontal gutter portion (34) formed by mutual abutment of a first horizontal seal member (31) and a second horizontal seal member (32) between horizontal frame members 11, 12 of the vertically adjacent curtain wall units 10 communicate with each other to constitute a space, and the lower end part of the lowest curtain wall unit 10 with the surface material 15 facing downward forms an opening (K) for introducing air into the space. <P>COPYRIGHT: (C)2012,JPO&amp;INPIT

Description

  The present invention relates to a curtain wall and a building using the curtain wall.

  Conventionally, a curtain wall constituting an outer wall material of a building is formed by connecting a curtain wall unit in which a face material such as a concrete panel or a glass panel is attached to a rectangular frame body in the vertical and horizontal directions.

  As such a curtain wall, the curtain wall units adjacent to each other up and down, left and right, or up and down and left and right are connected to be inclined at a predetermined angle to form a curved shape in the up and down direction, the left and right direction, or the up and down left and right direction Things are known.

  In such a curtain wall, a horizontal flange is formed between the horizontal frame member of the frame constituting the curtain wall unit and the horizontal frame member of another curtain wall unit adjacent to the curtain wall unit in the vertical direction. . The horizontal flange portion is provided so that primary seal materials provided on the outdoor side of each horizontal frame member are in contact with each other, and the protruding strips straddle between the horizontal frame members on the indoor side of the primary seal material. Is formed. Further, a vertical hook is formed between the vertical frame member of the frame constituting the curtain wall unit and the vertical frame members of other curtain wall units adjacent to the curtain wall unit on the left and right. In the vertical flange portion, primary seal materials provided on the outdoor side of each vertical frame member are in contact with each other, and the fitting seal material straddles between the vertical frame members on the indoor side of the primary seal material. It is formed by being provided.

  In such a curtain wall, a space is formed by communication between the recumbent part and the reed part, and rainwater that has entered the interior using the space is guided downward and drained to the outside. Yes. Further, in such a curtain wall, a notch for introducing outside air is formed in a part of the primary sealing material, so that the space is made equal to the outside air (see, for example, Patent Document 1).

Japanese Patent No. 2899523

  By the way, in the curtain wall as described above, a notch is formed in a part of the primary seal material and the outside air is introduced, so that rainwater enters the recumbent or vertical reed part through this notch. It will be. Therefore, in the curtain wall, the protruding strips that form the horizontal flanges are disposed so as to straddle between the horizontal frame members, and the fitting sealing material that forms the vertical flanges is disposed so as to straddle between the vertical frame members. There was a need to do.

  However, disposing the protruding strips and the fitting sealing material so as to straddle between the horizontal frame members and between the vertical frame members makes the assembly work of the curtain wall complicated.

  An object of this invention is to provide the curtain wall which can ensure watertightness, improving a workability | assembly workability | assembly, and a building using the same in view of the said situation.

  To achieve the above object, a curtain wall according to claim 1 of the present invention is a frame formed of a pair of upper and lower horizontal frame members, and a pair of left and right vertical frame members that connect ends of the horizontal frame members. A curtain wall configured by connecting a plurality of curtain wall units each having a face material attached to the body, vertically or horizontally or vertically and horizontally so that adjacent units are inclined at a predetermined angle. Between one vertical frame member and one vertical frame member of another curtain wall unit adjacent to the left and right of the curtain wall unit, the first vertical seal members provided on the outdoor side of the respective vertical frame members The second vertical seal member provided on the indoor side of the vertical frame member is in contact with the first vertical seal member. Between each vertical frame member, one horizontal frame member of the curtain wall unit, and one horizontal frame member of the other curtain wall unit adjacent to the curtain wall unit in the vertical direction. The first horizontal seal members provided on the horizontal frame and the horizontal flange formed when the second horizontal seal members provided on the indoor side of the horizontal frame member come into contact with each other communicate with each other. Thus, a space is formed, and the lower end of the lowermost curtain wall unit with the face material facing downward forms an opening for introducing outside air into the space.

  According to this, between one vertical frame member of the curtain wall unit and one vertical frame member of another curtain wall unit adjacent to the left and right of the curtain wall unit, on the outdoor side of each vertical frame member. A first vertical seal member provided, and a vertical saddle portion formed by the second vertical seal members provided on the indoor side of the vertical frame member in contact with the first vertical seal member; and a curtain A first horizontal frame provided on the outdoor side of each horizontal frame member between one horizontal frame member of the wall unit and one horizontal frame member of another curtain wall unit vertically adjacent to the curtain wall unit. The seal members communicate with each other, and the horizontal flange formed by the contact between the second horizontal seal members provided on the indoor side of the first horizontal seal member of the horizontal frame member. Since the lower end of the lowermost curtain wall unit that constitutes a space and the face material faces downward forms an opening for introducing outside air into the space, a cutout is made in the primary sealing material as in the prior art. Compared with the case of forming, the infiltration of rainwater can be reduced, and the watertightness is excellent. In addition, the vertical flange portion is formed by the first vertical seal members and the second vertical seal members coming into contact with each other, and the horizontal flange portion is formed by the first horizontal seal members and the second horizontal seal members. Since it is formed by abutting, it is not necessary to dispose a member so as to straddle between vertical frame members or between horizontal frame members as in the prior art, and the curtain wall can be assembled easily. Can do.

  The curtain wall according to a second aspect of the present invention is the curtain wall according to the first aspect described above, wherein the first lateral seal members are elastic so that the outdoor end portions of the first horizontal seal members protrude outward from the horizontal frame member. The first vertical seal members are in contact with each other while being deformed, and the first vertical seal members are in contact with each other while being elastically deformed such that the outer end portions of the first vertical seal members protrude outward from the vertical frame member.

  According to this, the first vertical seal members are in contact with each other while being elastically deformed so that the outdoor end portions of the first vertical seal members protrude outward from the vertical frame member, and the first horizontal seal members are in contact with each other of the outdoor end portions. Since it contacts while elastically deforming so that it protrudes to the outdoor side rather than a horizontal frame member, rain water can hardly pass between these and can improve watertightness.

  The curtain wall according to claim 3 of the present invention is the above-described curtain wall unit according to claim 1 or 2, wherein one of the vertical frame members of the curtain wall unit with the face material facing upward is a vertical collar portion formed by itself. It is provided with a gutter member that is arranged so as to extend along the extending direction of the vertical gutter part and allows rainwater that has entered the gutter part to pass downward.

  According to this, since the eaves member disposed on one vertical frame member of the curtain wall unit with the face material facing upward allows rainwater that has entered the vertical eaves portion to pass downward, the second vertical seal member Infiltration water can be reduced, and watertightness can be further improved.

  Moreover, the building which concerns on Claim 4 of this invention uses the curtain wall as described in any one of Claims 1-3 mentioned above, It is characterized by the above-mentioned.

  According to this, it is possible to provide a curtain wall that can reduce the intrusion of rainwater and can be easily assembled.

  According to the present invention, there is an effect that water tightness can be secured while improving assembling workability.

FIG. 1 is an explanatory diagram showing a curtain wall (curtain wall according to the present embodiment) applied to a building according to an embodiment of the present invention. FIG. 2 is an enlarged cross sectional view showing the joint portion of the curtain wall where the curtain wall units are connected to each other, and showing the longitudinal joint portion in an enlarged manner. FIG. 3 is an enlarged vertical cross-sectional view showing a joint portion of a curtain wall in which curtain wall units are connected to each other, and showing a horizontal joint portion. 4 is a longitudinal sectional view showing a lower end portion of the curtain wall shown in FIG.

  Exemplary embodiments of a curtain wall and a building using the curtain wall according to the present invention will be described below in detail with reference to the accompanying drawings.

  FIG. 1 is an explanatory diagram showing a curtain wall (curtain wall according to the present embodiment) applied to a building according to an embodiment of the present invention.

  The building illustrated here is, for example, a building, a tower, or the like, and at least part of the outer wall is formed with a curved portion that curves along the vertical direction and curves along the left-right direction. The curtain wall 1 forming such a curved portion is configured by connecting the curtain wall units 10 adjacent to each other vertically and horizontally so as to be inclined at a predetermined angle.

  The curtain wall unit 10 includes a rectangular frame formed of an upper frame member 11 and a lower frame member 12, and a pair of left and right vertical frame members 13 and 14 that connect the ends of the upper frame member 11 and the lower frame member 12. The frame body is formed by attaching a face material 15 such as a concrete panel or a glass panel. Here, the upper frame member 11 and the lower frame member 12 are a pair of upper and lower horizontal frame members.

  In addition, the curtain wall 1 which is this Embodiment is curving along the up-down direction by connecting the four curtain wall units 10 so that it may rank up and down. In the uppermost curtain wall unit 10 and the second highest curtain wall unit 10, the face material 15 faces upward. In the lowermost curtain wall unit 10 and the second lowest curtain wall unit 10, The material 15 is facing downward.

  Further, the curtain wall 1 is bolted to a bracket (not shown) in which the horizontal frame members (the upper frame member 11 and the lower frame member 12) constituting each curtain wall unit 10 are attached to the housing of the building. It is attached to the housing side.

  2 and 3 are enlarged views of the joint portions of the curtain wall where the curtain wall units are connected to each other. FIG. 2 is an enlarged cross-sectional view of the vertical joint portion, and FIG. 3 is a horizontal joint portion. It is a longitudinal cross-sectional view which expands and shows a part.

  In FIG. 2, the vertical joint portion between the vertical frame members 13 and 14 of the second curtain wall unit 10 from the uppermost position where the face material 15 faces upward is shown, but each curtain constituting the curtain wall 1 is shown. The wall unit 10 has the same structure, and the structure of the vertical joint between the vertical frame members 13 and 14 of the other curtain wall units 10 is the same as that shown in FIG. . Further, in FIG. 3, a horizontal joint portion between the horizontal frame members 11 and 12 of the second curtain wall unit 10 from the uppermost position where the face material 15 faces upward and the curtain wall unit 10 adjacent to the lower side is shown. However, each curtain wall unit 10 constituting the curtain wall 1 has the same structure, and the structure of the horizontal joint portion between the horizontal frame members 11 and 12 of the other curtain wall unit 10 is the same as that shown in FIG. Since it is the same, the description is omitted. That is, the inclination angle of the curtain wall unit 10 varies depending on the arrangement position, but the relative inclination angle between the curtain wall units 10 adjacent to the left and right and the relative inclination angle between the curtain wall units 10 adjacent to the upper and lower sides are arbitrary. It is constant.

  As shown in FIG. 2, a first vertical seal member 21, a second vertical seal member 22, and a third vertical seal member 23 are provided at the right end of one vertical frame member 13 of the curtain wall unit 10. The first vertical seal member 21 is made of an elastic material such as ethylene propylene rubber, for example, and is attached to the outdoor side end of the vertical frame member 13. The 2nd vertical seal member 22 is comprised from the elastic material similarly to the 1st vertical seal member 21, and has comprised substantially L shape, when it sees from an upper direction. The second vertical seal member 22 is attached to a portion on the indoor side of the first vertical seal member 21. The third vertical seal member 23 is made of an elastic material in the same manner as the first vertical seal member 21 and the second vertical seal member 22, and is attached to a portion on the indoor side of the second vertical seal member 22.

  On the other hand, the first vertical seal member 21 and the second vertical seal are also applied to the left end of one vertical frame member 14 of the other curtain wall unit 10 adjacent to the left and right of the curtain wall unit 10 in the same manner as the vertical frame member 13. A member 22 and a third vertical seal member 23 are provided.

  Between the curtain wall units 10 adjacent to each other on the left and right, the first vertical seal members 21, the second vertical seal members 22, and the third vertical seal members 23 are elastically deformed between the vertical frame members 13 and 14. While touching. In this way, the first vertical seal members 21 are in contact with each other to form a primary rain barrier, and the second vertical seal members 22 are in contact with each other to form a secondary rain barrier, and the third vertical seal members 23 are in contact with each other. In contact with each other, and in particular, the first vertical seal members 21 come into contact with each other while elastically deforming so that the outer end portions of each of the first vertical seal members 21 protrude outward from the vertical frame members 13 and 14. ing.

  And the vertical collar part 24 is formed between the vertical frame members 13 and 14 because the 1st vertical seal members 21 and the 2nd vertical seal members 22 contact | abut. In addition, a vertically long space 25 is formed between the vertical frame members 13 and 14 so that the second vertical seal members 22 and the third vertical seal member 23 are in contact with each other so as to be parallel to the vertical flange portion 24. Is done.

  The vertical rod portion 24 formed in this way communicates with the vertical rod portion 24 formed in the upper region and the lower region thereof, thereby forming a single passage extending from the upper end to the lower end of the curtain wall 1. It will be. Further, the vertically long space 25 extending so as to be parallel to the vertical flange portion 24 also extends from the upper end to the lower end of the curtain wall 1 by communicating with the vertically long space 25 formed in its upper region and lower region. A single passage is formed.

  Then, as shown in FIG. 2, the vertical frame member 14 of the curtain wall unit (the uppermost curtain wall unit 10 and the second highest curtain wall unit 10) with the face material 15 facing upward is formed by itself. An eaves member 26 extending along the extending direction is disposed on the vertical eaves portion 24. The eaves member 26 is formed by bending a steel plate and allows rainwater that has entered the vertical eaves portion 24 to pass downward through a groove 26a formed so as to cover the secondary rain barrier. It is.

  As shown in FIG. 3, a first horizontal seal member 31, a second horizontal seal member 32, and a third horizontal seal member 33 are provided at the lower end of the lower frame member 12 (one horizontal frame member) of the curtain wall unit 10. It is provided. The first horizontal seal member 31 is made of, for example, an elastic material such as ethylene propylene rubber, and is attached to the outdoor end portion of the lower frame member 12. The 2nd horizontal seal member 32 is comprised from the elastic material similarly to the 1st horizontal seal member 31, and has comprised substantially L shape, when it sees from the left-right direction. The second horizontal seal member 32 is attached to a portion on the indoor side of the first horizontal seal member 31. The third horizontal seal member 33 is made of an elastic material in the same manner as the first horizontal seal member 31 and the second horizontal seal member 32, and is attached to a portion on the indoor side of the second horizontal seal member 32.

  On the other hand, similarly to the lower frame member 12, the first horizontal seal member 31 is also provided at the upper end portion of the upper frame member 11 (one horizontal frame member) of the curtain wall unit 10 adjacent to the curtain wall unit 10 in the vertical direction. A second horizontal seal member 32 and a third horizontal seal member 33 are provided.

  Between the curtain wall units 10 adjacent to each other in the vertical direction, between the lower frame member 12 and the upper frame member 11, the first horizontal seal members 31, the second horizontal seal members 32, and the third horizontal seal member. 33 are in contact with each other while being elastically deformed. In this way, the first horizontal seal members 31 are in contact with each other to form a primary rain barrier, and the second horizontal seal members 32 are in contact with each other to form a secondary rain barrier, and the third horizontal seal members 33 are in contact with each other. Are in contact with each other to form a wind barrier. In particular, the first lateral seal members 31 protrude outward from the upper frame member 11 and the lower frame member 12 whose outer end portions are lateral frame members. It abuts while elastically deforming.

  And the horizontal collar part 34 is formed between the lower frame member 12 and the upper frame member 11 because the 1st horizontal seal member 31 and the 2nd horizontal seal member 32 contact | abut. Further, a horizontally long shape extending in parallel with the lateral flange 34 when the second lateral seal members 32 and the third lateral seal members 33 abut each other between the lower frame member 12 and the upper frame member 11. Although the space 35 is formed, the horizontally long space 35 communicates with the lateral flange portion 34 through a through hole (not shown) formed in the lower frame member 12.

  Such a recumbent part 34 communicates with the vertical reed part 24 at both left and right ends thereof, and communicates with the other reed part 34 when the other recumbent part 34 is formed in its left and right regions, In addition, the horizontally long space 35 communicates with the vertically long space 25 at both left and right ends thereof, and communicates with other horizontally long spaces 35 when left and right regions are formed. Moreover, since the horizontally long space 35 and the horizontal flange 34 communicate with each other through the through hole as shown by the arrow in FIG. 3, the vertical flange 24, the horizontal flange 34, the vertical space 25 and the horizontally long space 35 are in communication. , Forming a common space.

  An upper end frame (not shown) is arranged facing the upper frame member 11 of the uppermost curtain wall unit 10. The upper end frame is provided with a first upper end seal member and a second upper end seal member. The second upper end seal member is provided at a location on the indoor side of the first upper end seal member.

  Between the upper frame member 11 and the upper end frame of the uppermost curtain wall unit 10, the first horizontal seal member 31 abuts against the outdoor end of the upper end frame while being elastically deformed, and the second horizontal seal member 32 is in contact with the first upper end seal member while being elastically deformed, and the third lateral seal member 33 is in contact with the second upper end seal member while being elastically deformed.

  Thus, the primary rain barrier is formed by the first horizontal seal member 31 coming into contact with the outdoor end of the upper end frame, and the second rain seal 32 is brought into contact with the first upper end seal member. A barrier is formed, and the third horizontal seal member 33 is in contact with the second upper end seal member to form a window barrier.

  The first horizontal seal member 31 is in contact with the outdoor end of the upper end frame, and the second horizontal seal member 32 is in contact with the first upper end seal member, so that the upper end is between the upper frame member 11 and the upper end frame. A recumbent part is formed. Further, between the upper frame member 11 and the upper end frame, the second horizontal seal member 32 comes into contact with the first upper end seal member, and the third horizontal seal member 33 comes into contact with the second upper end seal member, thereby An upper end horizontally long space extending so as to be parallel to the lateral flange portion is formed.

  Such an upper end horizontal flange communicates with the vertical flange 24 at its left and right ends, and the upper end horizontal space also communicates with the vertical space 25 at its left and right ends.

  FIG. 4 is a longitudinal sectional view showing a lower end portion of the curtain wall 1 shown in FIG. As shown in FIG. 4, a lower end frame 50 is disposed so as to face the lower frame member 12 of the lowermost curtain wall unit 10. The lower end frame 50 is provided with a lower end seal member 51.

  Between the lower frame member 12 and the lower end frame 50 of the lowermost curtain wall unit 10, the second horizontal seal member 32 abuts against the upper end portion of the lower end frame 50 while being elastically deformed, and the third horizontal seal member 33 is in contact with the lower end seal member 51 while being elastically deformed. Thus, the rain barrier is formed by the second horizontal seal member 32 coming into contact with the upper end portion of the lower end frame 50, and the window barrier is formed by the third horizontal seal member 33 coming into contact with the lower end seal member 51. . In addition, a long gap extends along the extending direction of the lower frame member 12 by providing a gap between the first horizontal seal member 31 of the lower frame member 12 and the outdoor end portion of the lower end frame 50. A shaped opening K is formed.

  Thus, the second horizontal seal member 32 abuts on the upper end of the lower end frame 50, so that a lower end lateral flange 54 having the opening K is formed between the lower frame member 12 and the lower end frame 50 on the outdoor side. Is done. Further, between the lower frame member 12 and the lower end frame 50, the second horizontal seal member 32 contacts the upper end portion of the lower end frame 50, and the third horizontal seal member 33 contacts the lower end seal member 51. A lower end horizontally long space 55 extending so as to be parallel to the lower end lateral flange portion 54 is formed. The lower end horizontal flange portion 54 communicates with the vertical flange portion 24 at both left and right ends, and the lower end horizontal space 55 also communicates with the vertical space 25 at both left and right ends.

  In the curtain wall 1 according to the present embodiment, a vertical flange portion 24 formed between the vertical frame members 13 and 14 of the curtain wall unit 10 and a horizontal flange portion 34 formed between the horizontal frame members 11 and 12 are provided. By communicating, a common space is formed, and the lower end horizontal flange portion 54 communicates with the vertical flange portion 24, so that outside air can be introduced into the space through the elongated opening K. Isobaric. That is, the lower end of the lowermost curtain wall unit 10 with the face material 15 facing downward forms an opening K for introducing outside air into the space.

  The first vertical seal member 21 forming the primary rain barrier is in contact with the first horizontal seal member 31 and the first horizontal seal member 31 is in contact with each other at the outdoor end portions of the vertical frame members 13 and 14, respectively. Although it protrudes to the outdoor side rather than the frame member, one seal member (for example, the first vertical seal member 21) is welded to the other seal member (for example, the first horizontal seal member 31) at a place where these intersect. I have to.

  In the curtain wall 1 according to the present embodiment having the above-described configuration, even if rainwater passes through the primary rain barrier and enters the interior, the rainwater is allowed to pass through the recumbent part 34 and the vertical reed part 24. It can be made to flow into the lower end horizontal part 54 and discharged to the outside from the opening K of the lower end horizontal part 54.

  As described above, in the curtain wall 1 according to the embodiment of the present invention, one vertical frame member 13 (14) of the curtain wall unit 10 and other curtain walls adjacent to the curtain wall unit 10 on the left and right sides. Between the one vertical frame member 14 (13) of the unit 10, the first vertical seal members 21 provided on the outdoor side of the respective vertical frame members 13, 14 and the vertical frame members 13, 14 A vertical flange portion 24 formed by the contact between the second vertical seal members 22 provided on the indoor side of the first vertical seal member 21, and one horizontal frame member 11 (12) of the curtain wall unit 10; The horizontal frame members 11, 11 between the horizontal frame members 12 (11) of the other curtain wall unit 10 adjacent to the curtain wall unit 10 in the vertical direction. The first horizontal seal members 31 provided on the outer side of the second horizontal seal member 31 and the second horizontal seal members 32 provided on the indoor side of the horizontal frame member with respect to the first horizontal seal member 31 are in contact with each other. A space is formed by communicating with the recumbent portion 34, and the lower end of the lowermost curtain wall unit 10 with the face material 15 facing downward forms an opening K for introducing outside air into the space. . According to such a structure, compared with the case where a notch is formed in the primary sealing material as in the prior art, the intrusion of rainwater can be reduced and the watertightness is excellent. Moreover, the vertical flange portion 24 is formed by the first vertical seal members 21 and the second vertical seal members 22 coming into contact with each other, and the horizontal flange portion 34 is formed between the first horizontal seal members 31 and the second. Since the horizontal seal member 32 is formed by contacting each other, there is no need to dispose a member so as to straddle between the vertical frame members 13 and 14 or between the horizontal frame members 11 and 12 as in the prior art. Assembling work of the curtain wall 1 can be facilitated. Accordingly, it is possible to ensure water tightness while improving assembly workability.

  According to the curtain wall 1, the first horizontal seal members 31 are pressed against each other while elastically deforming so that the outer end portions of the first horizontal seal members 31 protrude outward from the horizontal frame members (the upper frame member 11 and the lower frame member 12). A primary rain barrier is formed in contact with each other, and the first vertical seal members 21 are in contact with each other while elastically deforming so that the outer end portions of the first vertical seal members 21 protrude outward from the vertical frame members 13 and 14. Since the barrier is formed, rainwater can hardly pass through the rain barrier, and the water tightness can be improved.

  Further, according to the curtain wall 1, the groove portion formed so that the eaves member 26 disposed on one vertical frame member 14 of the curtain wall unit 10 with the face material 15 facing upward covers the secondary rain barrier. Since rainwater that has entered the vertical hook portion 24 is passed downward through 26a, intrusion water to the secondary rain barrier can be reduced, and further improvement in water tightness can be achieved.

  The preferred embodiment of the present invention has been described above, but the present invention is not limited to this, and various modifications can be made.

  In the above-described embodiment, the curtain wall 1 configured by connecting the adjacent curtain wall units 10 vertically and horizontally so as to be inclined by a predetermined angle has been described. However, in the present invention, the adjacent curtain wall units are arranged. It may be a curtain wall configured by connecting up and down so that is inclined at a predetermined angle. That is, the curtain wall unit may be a curtain wall unit including a curtain wall unit with a face material facing upward and a curtain wall unit with a face material facing downward.

  As described above, the curtain wall according to the present invention is useful for constituting the outer wall material of a building.

1 Curtain Wall 10 Curtain Wall Unit 11 Upper Frame Member (Horizontal Frame Member)
12 Lower frame member (horizontal frame member)
DESCRIPTION OF SYMBOLS 13 Vertical frame member 14 Vertical frame member 15 Face material 21 1st vertical seal member 22 2nd vertical seal member 23 3rd vertical seal member 24 Vertical collar part 25 Vertically long space 26 Gutter member 26a Groove part 31 1st horizontal seal member 32 2nd Horizontal seal member 33 Third horizontal seal member 34 Horizontal flange 35 Horizontally long space K Opening

Claims (4)

A plurality of curtain wall units each formed by attaching a face material to a frame formed of a pair of upper and lower horizontal frame members and a pair of left and right vertical frame members that connect ends of the horizontal frame members are connected to each other. In the curtain wall constructed by connecting up and down or left and right, or up and down and left and right so that the
A first frame provided on the outdoor side of each vertical frame member between one vertical frame member of the curtain wall unit and one vertical frame member of another curtain wall unit adjacent to the left and right of the curtain wall unit. Vertical seal members formed as a result of the vertical seal members abutting each other, and the second vertical seal members provided on the indoor side of the vertical frame member from the first vertical seal member;
A first frame provided on the outdoor side of each horizontal frame member between one horizontal frame member of the curtain wall unit and one horizontal frame member of another curtain wall unit vertically adjacent to the curtain wall unit. A space is formed by communication between the horizontal seal members and a horizontal flange portion formed by contact between the second horizontal seal members provided on the indoor side of the first horizontal seal member of the horizontal frame member. The curtain wall is characterized in that an opening for introducing outside air into the space is formed at the lower end of the lowermost curtain wall unit with the face material facing downward.   The first vertical seal members are in contact with each other while elastically deforming so that the outdoor end portions of the first vertical seal members protrude outward from the vertical frame member, and the first horizontal seal members are in contact with each other of the outdoor end portions. The curtain wall according to claim 1, wherein the curtain wall abuts while being elastically deformed so as to protrude outward from the lateral frame member.   One vertical frame member of the curtain wall unit with the face material facing upward is arranged so as to extend along the extending direction of the vertical hook portion in the vertical hook portion formed by itself, and on the vertical hook portion The curtain wall according to claim 1, further comprising a gutter member that allows the rainwater that has entered to pass downward.   A building using the curtain wall according to any one of claims 1 to 3.

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