JP2013124482A - Unit type curtain wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent water leakage by capillarity between mating surfaces of end seal materials which are arranged both upper frame ends of unit type curtain walls which are arranged adjacently at upper and lower, and right and left positions respectively and abut against each other in contact while the curtain wall units are coupled together.SOLUTION: There is provided a unit type curtain wall 1 in which a first end seal material 8 is arranged on one side of an upper frame end of each curtain wall unit U, a second end seal material 9 is arranged on the other side of the upper frame end, the first end seal material 8 and the second end seal material 9 are made to abut against each other in contact while the curtain wall units U are coupled together. Cavity parts 8b, 9b which are open downward are provided to one or both of the mating surfaces of the first end seal material 8 and second end seal material 9, and rainwater entering the mating surfaces is dropped by the cavity parts 8b, 9b.

Description

  The present invention relates to a unit type curtain wall that prevents water leakage at a mating surface between end seal members installed at an upper frame end of each curtain wall unit, particularly in an interlocking unit type curtain wall.

  Currently, a unit connection structure called an interlocking method is known among the curtain wall methods that are the mainstream of building construction. In this interlocking system, when constructing a building wall surface by arranging the curtain wall units adjacent to each other in the vertical and horizontal directions, the upper and lower frames and / or the vertical frames of the curtain wall are fitted to each other to make the relative relationship between the units. The structure absorbs displacement.

  For example, in Patent Document 1 below, a curtain wall unit is a unit curtain wall that is arranged continuously in the vertical and horizontal directions, on either one of the opposing surfaces of the upper and lower curtain wall units adjacent to each other in the vertical direction. Ridges are formed continuously in the length direction on the other side of the ridge, and the curtain wall units adjacent to each other in the vertical direction are arranged so that the ridges and the groove are engaged with each other. A curtain wall is disclosed that maintains the tight contact state of the sealing material at the time of relative displacement while absorbing the displacement and ensures water tightness.

  In such an interlocking connection structure, it is important to provide a sealing material between the units to ensure airtightness and watertightness.

  Therefore, in Patent Document 2 below, as shown in FIG. 11 (FIG. 4 of the same document), the first is arranged in the horizontal direction along the joint portion between the curtain wall units 100, 200, 300, and 400 adjacent to each other in the vertical direction. 1 sealing material 305, a second sealing material 507 arranged in the vertical direction along the joint portion between the left and right curtain wall units, and attached to both ends of the upper frame of each curtain wall unit. The third sealant 700 that mediates the continuity between the end portions of the first sealant is attached to the unit in advance at the intersection between the curtain wall units adjacent to the left and right. A car that has a cross-sectional shape that allows fitting of a seal surface that closely contacts at an intersecting portion and an interlock-type convex connecting portion, and has an integrally formed structure of a metal reinforcing plate and a sealing material Cornwall has been disclosed.

Japanese Patent Laid-Open No. 7-3923 JP 2006-152560 A

  The end seal material 700 in Patent Document 2 has a role of closing these units on the upper surface of a joint between two units adjacent to each other on the left and right sides, and end seal materials are provided at both ends of the upper frame of each unit. When the units are connected and installed, the end seals 700 and 700 are brought into close contact with each other to ensure water tightness and air tightness at the unit intersection. The end seal material 700 is a substantially U-shaped solid seal material as an elastic material such as foamed silicone, foamed resin, or synthetic rubber, and is also called a “catch pan”.

  However, the mating surfaces of the pair of left and right end seal materials 700, 700 are in close contact with each other, but repeated watertight tests may cause rainwater to gradually enter due to capillary action and cause water leakage inside the room. It was found that there is.

  Therefore, the main problem of the present invention is that the unit type curtain wall arranged adjacently in the vertical and horizontal directions is arranged at both ends of the upper frame of each unit, and the end seal material is abutted in close contact with the connected state of the curtain wall unit. This is to prevent water leakage due to the capillary phenomenon that occurs on the mating surfaces.

In order to solve the above-mentioned problem, according to the first aspect of the present invention, there is provided a unit type curtain wall configured by arranging curtain wall units adjacent vertically and horizontally, at least above the curtain wall unit adjacent vertically. Convex ridges are formed continuously in the longitudinal direction of the member on either one of the surfaces facing the frame and the lower frame, and concave linking portions are formed continuously in the longitudinal direction of the member on the other side, and are adjacent to each other in the vertical direction. The projection connecting portion and the recess connecting portion of the curtain wall unit are connected in a state of being fitted to each other, and a first end seal material is disposed on one side of the upper frame end of each curtain wall unit. The second end seal material is disposed on the other side of the upper frame end, and the first end seal material and the second end seal material abut against each other in the connected state of the curtain wall unit. In the resulting unit type curtain wall,
A hollow portion that opens to the lower side is provided on one or both of the mating surfaces of the first end seal material and the second end seal material so that rainwater that has entered the mating surface falls in the cavity portion. A unit curtain wall is provided.

  In the first aspect of the present invention, the cavity opens downward with respect to one or both of the mating surfaces of the first end seal material and the second end seal material arranged at the upper frame end. A part was provided. Accordingly, the rainwater that has entered the mating surface at the cavity portion is prevented from leaking from the mating surface because the capillary phenomenon is interrupted and falls downward when reaching the cavity portion.

  According to a second aspect of the present invention, there is provided the unit curtain wall according to the first aspect, wherein the hollow portion is formed in an object arrangement on both the mating surfaces.

  In the invention according to the second aspect, the hollow portion is formed in a target arrangement on both the mating surfaces. As a result, a larger cavity can be formed, and the rainwater that has entered can be completely dropped.

  As a third aspect of the present invention, there is provided a unit curtain wall according to any one of the first and second aspects, wherein a plurality of the hollow portions are formed at intervals in an indoor / outdoor direction.

  In the third aspect of the present invention, a plurality of the hollow portions are formed at intervals in the indoor / outdoor direction. By forming a plurality of the hollow portions, it becomes possible to prevent water leakage more completely.

  As a 4th aspect of this invention which concerns on Claim 4, the water return part is integrally connected by the outdoor side of the said 1st end part sealing material and the 2nd end part sealing material. A unit curtain wall is provided.

  In the invention described in claim 4, a water return portion is integrally connected to the outdoor side of the first end seal material and the second end seal material. Conventionally, the water return part was separately provided separately. In this case, the number of parts was increased and the number of assembly steps in the factory was also increased. However, the water return part was integrated with the end seal material. By connecting them continuously, it is possible to reduce the number of parts and to reduce the mounting effort.

  As described above in detail, according to the present invention, in the unit type curtain wall arranged adjacent to each other in the vertical and horizontal directions, the end portions that are arranged at both ends of the upper frame of each unit and are brought into close contact with each other in the connected state of the curtain wall unit. It becomes possible to prevent water leakage due to a capillary phenomenon occurring on the mating surface of the sealing material.

The curtain wall 1 which concerns on this invention is shown, (A) is an external view, (B) is a longitudinal cross-sectional view. 2 is a front view of the curtain wall unit U. FIG. It is an enlarged vertical sectional view (III-III line arrow view of FIG. 1) which shows the connection part of curtain wall unit U and U. FIG. FIG. 4 is an enlarged cross-sectional view (a view taken along the line IV-IV in FIG. 1) showing a connecting portion between the curtain wall units U and U. 4 is an exploded perspective view of a main part showing a joining state of end seal materials 8 and 9 provided at both ends of the upper frame 3. FIG. It is a perspective view which shows the 1st edge part sealing material 8. FIG. The first end seal material 8 is shown, (A) is a side view, (B) is a sectional view taken along the line CC of (A), (C) is a left side view, and (D) is a plan view. It is a side view which shows the attachment state of the edge part sealing materials 8 and 9. FIG. It is a principal part disassembled perspective view which shows the modification (the 1) of the edge part sealing materials 8 and 9. FIG. It is a principal part exploded perspective view which shows the modification (the 2) of the edge part sealing materials 8 and 9. FIG. It is a principal part perspective view which shows the curtain wall structure based on the former (patent document 2).

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

<Specific example of curtain wall>
As shown in FIGS. 1 and 2, the curtain wall 1 according to the present invention includes left and right vertical frames 5 and 6 inside a frame body 2 including an upper frame 3, a lower frame 4, and left and right vertical frames 5 and 6. A curtain wall unit U (hereinafter simply referred to as “unit”), which is provided with a mesh 7 in the middle in the height direction so as to be connected and glass G or the like is fitted in each opening frame, is the floor F end of the building frame. It is a unit type curtain wall that is arranged adjacent to the wall surface of the building in the vertical and horizontal directions by support brackets 30, 30.

  The curtain wall 1 has concave connecting portions S1 and S2 formed continuously on the upper surface of the upper frame 3 in the longitudinal direction of the member, and convex connecting portions K1 and K2 are formed on the lower surface of the lower frame 4 in the longitudinal direction of the member. Interlocking system that is formed continuously along the direction and is connected in a state in which the concave strip connecting portions S1, S2 and the convex strip connecting portions K1, K2 are fitted to each other between the units U, U adjacent vertically Is adopted. In the curtain wall 1, the left and right vertical frames 5 and 6 are also continuously formed on the prospective surface of one right vertical frame 5 along the longitudinal direction of the member, and the other side On the prospective surface of the left vertical frame 6, a concave connecting portion S <b> 3 is continuously formed along the longitudinal direction of the member, and the convex connecting portion K <b> 3 and the concave connecting portion S <b> 3 are fitted to each other between the units U adjacent to the left and right. An interlocking system is used that is connected in a combined state.

  This will be described in more detail below.

  As shown in FIG. 3, the upper frame 3 constituting the unit U is provided with a groove mold part 3 b so as to form a glass fitting groove M <b> 1 opening downward on the outdoor side of the upper frame plate 3 a, A first protrusion 3c is provided that extends in an L shape upward from the indoor upper end corner of the groove portion 3b. In the middle of the upper frame plate 3a, a second protruding strip 3d extending upward is provided, and a third protruding strip 3d extending upward from the indoor side end is provided, The first ridge piece 3c and the second ridge piece 3d constitute a first groove connection portion S1, and the second ridge piece 3d and the third protrusion piece 3e constitute a second groove connection portion S2. Has been.

  The upper end of the second protrusion 3d is provided with a seal mounting portion 3f toward the outdoor side, and a seal mounting piece 3g extending in an inverted L shape from the upper end toward the indoor side. Yes. A first sealing material 10 serving as a rain barrier is mounted on the seal mounting portion 3f, and a second sealing material 11 serving as a spacer is mounted on the seal mounting piece 3g. A seal mounting piece 3h facing the outdoor side is provided at the tip of the third protruding strip 3e, and a third seal material 12 serving as a wind barrier is mounted on the seal mounting piece 3h. In the glass fitting groove M1, the upper end portion of the glass G is sandwiched between the first gasket 13 mounted on the outdoor side of the groove and the second gasket 14 mounted on the indoor side.

  Next, as shown in FIG. 3, the lower frame 4 has an L-shaped cross section on the outdoor side of the main body 4A in which the first hollow portion 4a and the second hollow portion 4b are connected in the indoor / outdoor direction. A glass fitting groove M2 that opens upward is provided by the extending piece 4c that extends. An inverted U-shaped groove 4e that opens to the lower surface is formed at the boundary between the first hollow portion 4a and the extending piece 4c, and the first hollow portion 4a and the second hollow portion 4b An inverted U-shaped groove 4d that opens to the lower surface side is also formed at the boundary portion. As a result, the first ridge connection portion K1 is configured by the lower portion of the first hollow portion 4a, and the ridge connection portion K2 is configured by the lower portion of the second hollow portion 4b.

  Further, in the glass fitting groove M2 portion, a setting block 14 is installed, and a glass G is placed on the setting block 14, and a first gasket 13 mounted on the outdoor side of the groove and a first gasket mounted on the indoor side of the groove. The glass G is sandwiched between the three gaskets 15 and the sealing material 16 applied to the upper surface thereof. A decorative cover material 25 is attached to the outdoor side surface of the lower frame 4.

  In the connected state of the upper frame 3 and the lower frame 4, as shown in the figure, the first ridge connecting portion K1 of the lower frame 4 is fitted to the first concave connecting portion S1 of the upper frame 3. The second ridge connecting portion K2 of the lower frame 4 is fitted into the second ridge connecting portion S2 of the upper frame 3. In this fitted state, the first sealing material 10 provided on the second protruding piece 3d of the upper frame 3 is in close contact with the indoor side surface of the first protruding link connecting portion K1 of the lower frame 4, and the second protruding The second sealing material 11 provided on the strip 3d is in close contact with the outdoor side surface of the second convex connecting portion K2 of the lower frame 4, and further, the third sealing member 3e provided on the third protruding strip 3e of the upper frame 3. The sealing material 12 is in close contact with the indoor side surface of the second ridge connecting portion K2.

  On the other hand, as shown in FIG. 4, the right vertical frame 5 is provided with an extension piece 5b on the outdoor side of the vertical frame plate 5a, to which a pressing edge 17 is attached, and to a glass fitting groove M3 that opens to the side. Is formed. The extending piece 5b is provided with a protruding piece 5c extending to the other left vertical frame 6 side. A first protruding piece 5d extending toward the other left vertical frame 6 is provided in the middle of the vertical frame plate 5a, and a second protruding piece 5e extending similarly toward the left vertical frame 6 is provided at the indoor side end. It has been. The first projecting piece 5d and the second projecting piece 5e constitute a ridge connecting portion K3. In the glass fitting groove M3, the glass G is sandwiched between the first gasket 13 mounted on the outside of the groove, the third gasket 15 mounted on the indoor side of the groove, and the sealing material 16 applied on the upper surface thereof. Has been.

  As shown in FIG. 4, the left vertical frame 6 is provided with an extension piece 6b on the outdoor side of the vertical frame plate 6a, to which a pressing edge 18 is attached, and to a glass fitting groove M4 that opens to the side. Is formed. In the middle of the vertical frame plate 6a, there is provided a first protruding piece 6d extending toward one right vertical frame 5, and a second protruding piece 6e extending also toward the right vertical frame 5 is provided at the indoor side end. It has been. A seal material mounting portion is provided at the front ends of the first projecting piece 6d and the second projecting piece 6e so as to face each other, and a fourth seal material 19 serving as a rain barrier is mounted on the first projecting piece 6d. The second projecting piece 6e is provided with a fifth seal material 20 serving as a wind barrier. The first projecting piece 6d and the second projecting piece 6e constitute a concave connecting portion S3. In the glass fitting groove M4, the glass G is sandwiched between the first gasket 13 mounted on the outer side of the groove, the third gasket 15 mounted on the indoor side of the groove, and the sealing material 16 applied on the upper surface thereof. Has been.

In the connected state of the right vertical frame 5 and the left vertical frame 6, as shown in the figure, the convex strip connecting portion K 3 of the right vertical frame 5 is fitted to the concave strip connecting portion S 3 of the left vertical frame 6. Yes. In this fitted state, the fourth sealing material 19 provided on the first protruding piece 6d of the left vertical frame 6 is in close contact with the outdoor side surface of the first protruding piece 5d of the right vertical frame 5, and the left vertical frame 6 The fifth sealing material 20 provided on the second protruding strip 6e is in close contact with the indoor side surface of the second protruding piece 5e of the right vertical frame 5.
<Upper frame end sealant 8, 9>
As shown in FIG. 5, in the curtain wall 1, the first end seal material 8 is disposed on one side of the upper frame end of each unit U, and the second end on the other side of the upper frame end. An end seal material 9 is disposed, and the first end seal material 8 and the second end seal material 9 are abutted in close contact with each other when the units U and U are connected.

  As shown in FIGS. 6 and 7, the first end seal material 8 has a substantially predetermined thickness dimension, a concave portion 8 d on the upper surface side, and a substantially U-shape in a side view. It is a sealing member, and is formed of an elastic material such as foamed silicone, foamed resin, or synthetic rubber. Of these materials, foamed silicone is preferred because permanent set hardly remains when compressed.

  As for the said 1st edge part sealing material 8, the surface of one side is made into the smooth surface 8A, and the surface of the other side is the insertion groove formation surface 8B of the upper frame edge part. A groove 8a is formed on the insertion groove forming surface 8B so as to substantially match the cross-sectional shape of the upper frame 3, and is fitted to the end of the upper frame 3 as shown in FIGS. Can be installed. Moreover, the water return part 7C provided with the drooping wall 8c is integrally formed in the outdoor side end part. In addition, the seal mounting piece 3h is cut out at the tip of the third protruding piece 3e of the upper frame 3, and only the plate portion is inserted into the groove portion 8a. A garter splice 21 is installed at the end of the upper frame 3 for reinforcement.

  As shown in FIG. 8, the convex connecting portion K <b> 2 of the lower frame 4 is fitted into the concave portion 8 d on the upper surface side of the first end seal material 8. Further, as shown in FIG. 5, a presser plate 26 is installed on the upper surface side of the water return portion 7 </ b> C so that lifting is prevented by fixing with screws, and the first end seal material 8 is fixed. It has become.

  Since the second end seal material 9 is a member that forms a line object with the first end seal material 8 just as the axis and the smooth surface 8A as an axis, description thereof is omitted.

  In the present invention, on one side or both of the mating surfaces of the first end seal material 8 and the second end seal material 9, there are provided cavity portions 8b, 9b that open downward, the cavity portion 8b, In 9b, rainwater that has entered the mating surface is dropped downward. In the first embodiment shown in FIG. 5, cavities 8b and 9b that are inclined in the outdoor direction in the target arrangement, in the middle of the indoor and outdoor directions of the first end seal material 8 and the second end seal material 9. It is said. Accordingly, the rainwater that gradually enters the inside of the mating surface of the first end seal material 8 and the second end seal material 9 by the capillary phenomenon has a capillary phenomenon when it reaches the hollow portions 8b and 9b. It can be dissipated and dropped downward, and water leakage to the indoor side can be completely prevented.

  As shown in FIG. 9, the hollow portions 8b and 9b may be formed in a rectangular shape without being inclined, or as shown in FIG. 10, a plurality of hollow portions are spaced in the indoor / outdoor direction. 8b and 8e (9b and 9e) may be formed. A plurality of the hollow portions 8b and 8e (9b and 9e) are formed, and leakage of the rainwater that has entered at the mating surfaces of the end seal members 8 and 9 is completely blocked, thereby preventing water leakage at the mating surfaces. become able to. The hollow portion may be formed only on one side of the first end seal material 8 and the second end seal material 9.

  DESCRIPTION OF SYMBOLS 1 ... Curtain wall, 2 ... Frame body, 3 ... Upper frame, 4 ... Lower frame, 5 ... Right vertical frame, 6 ... Left vertical frame, 7 ... Seamless, 8 ... 1st edge part sealing material, 8b * 8e ... Cavity part, 8C ... Water return part, 9 ... Second end seal material, 9b and 9e ... Cavity part, S1 ... First concave connection part, S2 ... Second concave connection part, S3 ... Third concave connection part, K1 ... 1st protruding item | line connection part, K2 ... 2nd protruding item | line connection part, K3 ... 3rd protruding item | line connection part, U ... Curtain wall unit, G ... Glass

Claims (4)

A unit-type curtain wall configured by arranging curtain wall units vertically and horizontally adjacent to each other, and at least one of the surfaces of the curtain wall units adjacent to each other in the vertical direction facing the upper and lower frames. Convex ridges are formed continuously in the direction, and on the other side, concave linking parts are formed continuously in the longitudinal direction of the member. The first end seal material is disposed on one side of the upper frame end of each curtain wall unit, and the second end seal material is disposed on the other side of the upper frame end. In the unit type curtain wall that is disposed and the first end sealing material and the second end sealing material are butted against each other in a connected state of the curtain wall unit,
A hollow portion that opens to the lower side is provided on one or both of the mating surfaces of the first end seal material and the second end seal material so that rainwater that has entered the mating surface falls in the cavity portion. A unit-type curtain wall characterized by   The unit curtain wall according to claim 1, wherein the hollow portion is formed in a target arrangement on both the mating surfaces.   The unit type curtain wall according to claim 1, wherein a plurality of the hollow portions are formed at intervals in the indoor / outdoor direction.   The unit type curtain wall in any one of Claims 1-3 by which the water return part is integrally provided in the outdoor side of the said 1st end part sealing material and the 2nd end part sealing material.

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