JP2867098B2 - Unit curtain wall seal structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit curtain wall sealing structure for sealing an intersection of adjacent upper, lower, left and right curtain wall units.

[0002]

2. Description of the Related Art A so-called interlock curtain formed by fitting an upper frame and a lower frame, and a left vertical frame and a right vertical frame of each curtain wall unit (hereinafter referred to as "unit") vertically and horizontally adjacent to each other. On the wall,
Each curtain wall unit is supported by the building frame via a fastener, and the outer end of each unit is formed with unevenness, and the units are joined to each other so as to fit each other with the unevenness. In addition, a fixed-shaped sealing material is attached to the concave and convex portions so that water tightness between adjacent units can be maintained. In this case, in the intersection where the squares of the four units gather, the ends of the sealing materials of the adjacent left and right units are in abutting state, and there is a problem that it is difficult to obtain good watertightness. Therefore, in general, when all units on the same floor have been assembled, the intersection is filled with a wet-type sealing material (sealing material), and construction is performed to continuously connect the water sealing line between the adjacent left and right units. After that, the unit for the floor directly above is assembled.

[0003]

In general curtain wall construction, the construction work for assembling the curtain wall and the sealing work for filling the sealing material (sealing work) are performed by different workers. On construction,
Treated as separate construction. For this reason, in the construction of the curtain wall as described above, the main construction for one floor and the sealing construction (sealing construction) for one floor are performed alternately, and the construction is managed so as to be performed alternately. For this reason, in actual construction, the builder of the main construction and the builder of the sealing construction (sealing construction) are alternately replaced, and the construction of the outer wall proceeds. Therefore, if the process management is disrupted, there is a problem that even if one work is possible with materials and personnel, the work of the next stage cannot be started unless the other work is completed. Had become.

Further, the sealing method using a wet seal requires cleaning of an adherend surface prior to filling of the wet seal and curing after filling, and thus has a problem that it takes a long working time.

[0005] The present invention has been made in view of such problems, and a seal work for a knit curtain wall in which a seal work in a curtain wall work can be performed as an integral part of the main work and a work time for the seal work can be reduced. Its purpose is to provide a structure.

[0006]

Means for Solving the Problems] In order to continuously seal water line of the left and right of the curtain wall units adjacent to each person
And a dry seal component mounted in a state that spanned between upper ends of the left and right of the curtain wall units, dry seal
Press the parts against the upper ends of the left and right curtain wall units.
And a seal holder .

[0007] In this case, the seal retainer is attached to the left and right curtain doors.
It is preferable to fix it to one of the
No. Furthermore, in these cases, the outdoor side of the dry seal parts
To prevent rainwater from blowing into dry-sealed parts.
Further comprising a rain baffle, wherein the rain baffle is provided on the left and right curtains.
Desirably fixed to one of the wall units
New

[0008]

[Function] By forming the sealing material for connecting the water sealing lines of the left and right curtain wall units with dry sealing parts, the dry sealing parts can be attached at any time when any one of the curtain wall units is assembled. it can. Dry seal parts do not fall under the category of sealing work and can be constructed as a part of a curtain wall. Further, the dry seal parts are merely attached so as to bridge between the upper ends of the left and right curtain wall units, and there is no need to specifically clean or cure the construction part. In addition, dry seal parts can be replaced with left and right curtain walls.
A seal holder is provided at the upper end of the unit.
Of the dry-type seal parts by curtain holder
Firmly against the top of the unit to improve watertightness.
Can be

On the other hand, in addition to the dry seal component, a rain shield plate for preventing rainwater from being blown into the dry seal component is further provided to prevent rainwater from directly hitting the dry seal component.
Can be stopped, and one of the seal holder and the rain shield or
Both of the left and right curtain wall units
Fixed to each curtain wall unit.
Dry seal parts and seal pressing against thermal expansion and seismic motion
The air and rain shields can escape to the left and right
Therefore, it is necessary to maintain watertightness against such environmental changes.
Can be.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a curtain wall to which a seal structure according to an embodiment of the present invention is applied will be described with reference to the accompanying drawings. This curtain wall constitutes the wall surface of the part facing the outdoors such as a stairwell of a building,
FIG. 1 is an interior view as seen from the indoor side of a curtain wall. As shown in the figure, this curtain wall is provided with a curtain wall unit (hereinafter, referred to as a “unit”) 3 from a room side to a vertical aggregate 1 attached to a building frame at equal intervals through a fastener 2. Attached so that it passes between the aggregates 1 and 1, it is comprised. Each unit 3 is formed in a horizontally long rectangle, and is arranged in a grid.
Also, at the boundary between the curtain wall and the frame,
An end unit 4 formed in a vertically long rectangle is provided.

As shown in FIG. 2 and FIG.
Is configured by incorporating a glass 6 as a panel body into a unit frame 5 having a rectangular frame. Unit frame 5
Are the left and right vertical frames 7,7, the upper frame 8 and the lower frame 9, and the horizontal rail 1 between the left and right vertical frames 7,7 between the upper frame 8 and the lower frame 9.
It is framed with 0. On the other hand, the glass 6
In the frame surrounded by the upper half of the vertical frames 7, 7 and the upper frame 8 and the horizontal rail 10, the lower half of the vertical frames 7, 7 and the lower frame 9, and the horizontal rail 10 And in the frame surrounded by. In this case, the unit frame 5 has a structure in which the indoor side is substantially flush with the glass 6 and the outdoor side protrudes from the glass 6 in the expected direction.

The unit 3 configured as described above
Is a bracket 11 in which the left and right vertical frames 7 are disposed on the outdoor side.
And a bracket 11 is fastened to the fastener 2 by a fixing bolt 12. That is, aggregate 1
The fastener 2 is fixed to the indoor side of the fastener 2, and the bracket 11 is fixed to the indoor side of the fastener 2.
The unit 3 is fixed to the indoor side of. Fastener 2
Is composed of a primary fastener 14 and a secondary fastener 15 connected to each other by a connection bolt 13. The primary fastener 14 is bolted to the aggregate 1, and the bracket 11 is bolted to the secondary fastener 15.

The fixing bolt 12 of the bracket 11 is inserted into the fool hole 15 a of the secondary fastener 15, and is adjusted by an adjusting bolt 16 provided on the upper part of the bracket 11.
Within the opening range of the fool hole 15a, the installation position of the unit 3 can be moved and adjusted vertically. Similarly, the connection bolt 13 of the fastener 2 is also inserted through the fool hole 14 a of the primary fastener 14.
Within the opening range a, the installation position of the unit 3 can be moved and adjusted in the front-rear and left-right directions.

As shown in FIG. 3, the vertical frame 7 has cross sections different from each other so that the vertical frames 7, 7 of adjacent units on the left and right are joined (fitted) with unevenness. In the vertical frame 7 on the left side when viewed from the outdoor side,
A vertical hollow portion 31 in which a nut 12a for the fixing bolt 12 of the bracket 11 and a backing plate 12b are accommodated, and a first fitting groove portion 3 in which a part of an adjacent unit 3 is slidably fitted.
2. A constant-pressure groove 33 and a second fitting groove 34 which form the constant-pressure space 17 described later are formed.
A horizontal swallow groove 35 into which the glass 6 is inserted is formed back to back.

On the other hand, the right vertical frame 7 has a vertical hollow portion 36 and a first protruding portion which is slidably fitted in the first fitting groove 32 of the adjacent unit 3 in the expected direction from the outdoor side. 37, a constant pressure groove 38 and a second protruding side 39 are formed.
A side swallowing groove 40 into which the glass 6 is inserted is formed back to back with the protruding edge 39. A rain seal 41 is attached to the first protruding portion 37 in advance, and the second protruding portion 3 is attached.
9, an air seal 42 is attached in advance and slidably comes into contact with the first fitting groove 32 and the second fitting groove 34 of the adjacent unit 3, respectively, so that the equal pressure space 17 is formed in the two equal pressure grooves 33, 38. In addition to maintaining the airtightness with respect to the indoor side and the watertightness with respect to the outdoor side, the fitting of the joints between the vertical frames 7 and the rainfall are improved.
Further, an outside air introduction hole 43 is formed in the lower wall surface of each of the equal pressure grooves 33 and 38, and the outside air is introduced into the equal pressure space 17 to make the pressure equal to that of the outside air. Is dropped downward.

As shown in FIG. 2, upper frame 8 and lower frame 9
Has a cross-sectional shape in which the lower frame 9 of the unit 3 located immediately above and the upper frame 8 of the unit 3 located immediately below are fitted with unevenness. A rain gutter section 51 for draining rainwater, a first protruding side section 52 slidably fitted to a part of the unit 3 immediately above, and a constant pressure space 18 described later Equal pressure groove 53 and second protruding edge 5
4 is formed, and the glass 6 is
The upper swallowing groove 55 into which is inserted.

On the other hand, in the lower frame 9, a horizontal hollow portion 56 for maintaining rigidity and a first protruding portion 52 of the unit 3 immediately below are fitted slidably in the expected direction from the outdoor side. Groove 5
7 and a constant pressure groove 58 are formed, and a lower swallowing groove 59 into which the glass 6 is inserted is formed back to back with the constant pressure groove 58. At the lower end of the horizontal hollow portion 56, a groove-shaped drainage portion 60 is formed.
The front edge of the rain gutter 51 of the upper frame 8 is loosely inserted to prevent rainwater from entering the rain gutter 51. On the other hand, a rain seal 61 is attached to the first protruding portion 52 of the upper frame 8 in advance,
An air seal 62 is attached to the second protruding portion 54 in advance, and the air seal 62 is slidably contacted with the fitting groove portion 57 of the upper frame 8 and the indoor-side finding surface. (Water-sealing engagement part) 18 which, while maintaining airtightness with respect to the indoor side and water-tightness with respect to the outdoor side, has a good fit of the joint between the upper frame 8 and the lower frame 9 and a good rain action. I have to.

A drain hole 63 is formed in the lower wall surface of the front end of the equal-pressure groove 53 of the upper frame 8 so that rainwater that has entered the equal-pressure space 18 from the rain seal 61 under bad conditions can be appropriately drained by a rain gutter. It can be guided into the part 51. Further, the bottom of the rain gutter portion 51 is formed to be one step lower than the lower portion of the equal pressure space 18 so that the rainwater that has entered the rain gutter portion 51 does not flow back to the equal pressure space 18. Is formed with a drain hole 64 that opens to the outside. Thus, the draining part 60, the rain gutter part 51, the equal pressure space 18, the drain hole 6
3, 64, a rain seal 61 and an air seal 62 are provided to prevent rainwater from entering in a double or triple manner, thereby ensuring the rain.

The horizontal rail 10 has both ends fixed to the vertical frames 7, 7 and is provided at an intermediate portion between the upper frame 8 and the lower frame 9 (see FIG. 1). As shown in FIG. The cross section of the glass 6
And a lower swallowing groove 72 and an upper swallowing groove 73 into which the upper and lower glasses 6 and 6 are fitted respectively. The indoor finding surface is made of glass. 6 is almost flush with the found surface.

Reference numeral 81 in FIGS. 2 and 3 denotes a setting block for supporting the glass 6 in the swallowing grooves 35, 59, 72, and reference numerals 82 and 83 denote a space between the glass 6 and the unit frame 5. Reference numeral 84 denotes a backing material for the window sealing material 82, and reference numeral 85 denotes a silicon seal for sealing a joint between the units 3 and 3.

Next, referring to FIGS. 2, 4 and 5,
The raining process of the reunion unit where the corners of the upper and lower units and the left and right units 3 and 3 gather will be described. In this intersection, the rain seal 61 and the air seal 62 are discontinuous (FIG. 7).
reference). Therefore, a short water-sealing joint 21 and a rain shield 22 which are dry-type sealing parts are provided so as to extend over both units 3 and 3 in this portion.

The water sealing joint 21 is made of a sealing material such as silicone foam rubber, and is pressed and fixed in the equal pressure groove 53 by a joint retainer (seal retainer) 23.
The water sealing joint 21 is, as shown in FIGS.
A joint body 21a having a cross-sectional shape that matches the cross-sectional shape of the equal-pressure groove 53 of the upper frame 8 that forms the constant-pressure space 18, and a protrusion 21b formed outside the intermediate room of the joint body.
The left and right halves of the joint body 21a are in close contact with the equal pressure grooves 53, 53 of the left and right units 3, 3, respectively, and the protrusion 21b is the first protruding edge of the adjacent unit. The portions 52 and 52 are in close contact with each other. Thereby, each equal pressure groove 5
3 and 53, the water seal joint 21 and the rain seal 61 and the air seal 62 of each of the left and right units 3 and 3.
However, the watertightness of this portion is ensured continuously in a sealing manner.

As shown in FIG. 2, the joint retainer 23 is composed of a front plate 23a and a rear plate 23b having substantially the same length as the water sealing joint 21.
1 is sealed with a rear plate 23b at a water sealing joint 21.
Each half of the indoor side of the is held down. The rear plate 23b is, as shown in FIG.
While holding a, it is screwed to one of the adjacent units 3 and is slidable with respect to the other unit 3. Thus, the water sealing joint 21 and the joint retainer 23 can escape from the thermal expansion and the seismic motion of the left and right units 3 and 3.

The rain shield 22 is made of a metal plate such as an aluminum plate having a sectional shape conforming to the indoor wall surface of the rain gutter portion 51 of the upper frame 8, and is screwed to one of the adjacent units 3. . This prevents rainwater from directly hitting the water sealing joint 21, thereby preventing rainwater from entering from between the water sealing joint 21 and the equal pressure groove 53 due to surface tension.

As described above, the water sealing joint 21 and the rain shield 22 make it possible for the adjacent units 3 and 3 in the intersection to perform well in the rain. Therefore, as shown in FIG. 5, in the intersection of the adjacent upper, lower, left and right units 3, 3, 3, 3, for example, under uniform conditions, the equal pressure space of the vertical frames 7, 7 of the upper units 3, 3 is formed. 17, rainwater infiltrates into 17 and water sealing joint 2 of lower units 3 and 3
Even if it flows down above the rainwater, the rain water
1 is guided from the drainage hole 63 to the rain gutter 51 through the equal pressure grooves 18 of the lower units 3 and 3.

In this case, the water-sealing joint 21, the joint retainer 23 and the rain-prevention plate 22 are attached as needed when any one of the units 3 is assembled, and this attachment work is performed as part of the work for assembling the curtain wall. Done. Therefore, the assembling work of the curtain wall can be performed without conflicting with other works. Moreover, unlike the wet seal filling work, the installation work of the water sealing joint 21 and the like does not require preparation or curing before and after the installation, and can be performed in a short time and easily. Therefore, there is no restriction on other construction work in the process management, and the work time (construction period) can be reduced, so that the workability of the curtain wall can be improved.

Further, since the joint retainer 23 and the rain shield 22 are fixed to one of the left and right units 3 and 3, respectively, the water sealing joint 21 and the joint retainer 21 are protected against thermal expansion and seismic motion of each unit 3. 23 and the rain shield 22 can be made to escape to the left and right, and the watertightness is not impaired even with such environmental changes.

In this embodiment, the water sealing joint is pressed and fixed to the equal pressure groove of the unit by a single joint retainer. However, the protrusion is eliminated and the left and right units are fixed to the left and right units by a pair of joint retainers. You may comprise so that each may be fixed and the intermediate part of a water sealing joint may expand and contract. Alternatively, the water sealing joint itself may be formed to be thick, fitted in the equal pressure groove, and directly fixed thereto without the joint presser.

[0029]

As described above, according to the unit curtain wall sealing structure of the present invention, the sealing material provided so as to make the water sealing line continuous between the left and right curtain wall units is constituted by a dry-type sealing part. Therefore, the installation work (construction) of the sealing material can be performed in a short time and easily as an integral part of the main work of the curtain wall, and there is an effect that the workability can be improved.

[Brief description of the drawings]

FIG. 1 is an inside view of a unit curtain wall to which a seal structure according to an embodiment of the present invention is applied, as viewed from an indoor side.

FIG. 2 is a longitudinal sectional view of a unit curtain wall to which the seal structure according to the embodiment is applied.

FIG. 3 is a cross-sectional view of a unit curtain wall to which the seal structure according to the embodiment is applied.

FIG. 4 is an enlarged vertical sectional view around a sealing material according to the embodiment.

FIG. 5 is an enlarged plan view around a sealing material of the embodiment.

FIG. 6 is a perspective view of a water sealing joint that forms a sealing material.

FIG. 7 is a perspective view showing a state in which adjacent left and right curtain wall units are accommodated.

FIG. 8 is a perspective view showing a state in which adjacent upper and lower and left and right curtain wall units are accommodated.

[Explanation of symbols]

 3 Unit (Curtain Wall Unit) 8 Upper Frame 21 Water Seal Joint 22 Rain Plate 23 Joint Holder 53 Equal Pressure Groove

Claims (3)

(57) [Claims] 1. A dry seal component attached between upper ends of left and right curtain wall units so as to continue water sealing lines of adjacent left and right curtain wall units, and the dry seal component. Said
Seats that press against the upper ends of the left and right curtain wall units
Seal structure of the unit curtain wall, characterized in that a Le presser. 2. The seal holding device according to claim 1 , wherein
The unit curtain wall sealing structure according to claim 1, wherein the unit curtain wall is fixed to one of the wall units. 3. The method according to claim 1, wherein the dry sealing part is located on an outdoor side.
To prevent rainwater from being blown into the dry seal parts
Further comprising a guard plate, wherein the rain shield plate is provided with the left and right curtains.
Characterized by being fixed to one of the wall units
The unit curtain wall according to claim 1 or 2,
Seal structure.