JP2000120199A - Curtain wall unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a curtain wall unit maintaining a beautiful wall surface over a long period by preventing rainwater falling on the wall surface from flowing collectively, and allowing almost no water to enter indoors. SOLUTION: The wall units of a curtain wall are arranged adjacent to one another, both horizontally and vertically. A draining frame 160 with a draining surface pointed downward toward the front of a wall surface is provided below the face plate 200 of each wall unit. Rainwater flowing down the wall surface is received by the draining surface, is deflected by the inclination of the draining surface, and made to drop from the front end of the draining surface separated from the surface of the face plate 200. Thus, since the draining frame 160 is provided for each face plate 200, each draining frame 160 treats little amount of rainwater. The rainwater is prevented from being collected in excess on a portion of the wall surface. The draining frames 160 projecting from the surfaces of the face plates 200 keep the face plates 200 from being soiled with falling water.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION
The present invention relates to a curtain wall unit constructed on a wall of a large building such as a building or an apartment house at a construction site.

[0002]

2. Description of the Related Art In a building constructed of a steel frame, the construction period is shortened by attaching a curtain wall assembled in a factory at a construction site. As this type of curtain wall, for example, as shown in FIG. 1A, a wall unit in which an aluminum frame having a plurality of face plates 2 is fixed to a steel frame 1 assembled in a frame shape is used. One wall unit has a size of about 2.5 m in width and about 4 m in height. After the wall unit is lifted by the crane 4 via the hanging member 3 provided on each wall unit and arranged at a predetermined location, the wall unit is stacked on the lower wall unit.
Positioning protrusions 5 are provided on the top surface of the wall unit, and the positioning protrusions 5 are fitted into holes (not shown) provided on the bottom surface of the upper wall unit, so that the positioning protrusions 5 are positioned with respect to the lower wall unit. The upper wall unit is set in a predetermined positional relationship. Next, the back side of the wall unit is attached to the floor structure 7 of the building using the mounting bracket 6.

[0003]

When rainwater falls on a wall constructed by a curtain wall, the rainwater flows down along the wall, but tends to gather at vertical joints and horizontal joints between the wall units. When a large amount of rainwater gathers, it becomes a torrent and flows down and scatters on the wall surface, causing inconvenience to residents, pedestrians, and the like. Various proposals have been made to prevent excessive collection of rainwater, but a sufficient drainage function has not yet been obtained. In addition, the excessively collected rainwater permeates into the inside of the wall and causes discoloration and corrosion in a curtain wall made of a metal member.

[0004]

SUMMARY OF THE INVENTION The present invention has been devised in order to solve such a problem. Each wall unit has a function of discharging rainwater, and rainwater is excessively collected at a specific location. It is an object of the present invention to provide a wall unit that maintains beautiful wall surfaces for a long period of time and adds an accent to the wall surfaces to improve the design. The curtain wall to which the present invention is directed is a wall unit obtained by integrating an aluminum frame with a steel frame, and forms a wall surface by arranging a plurality of wall units in a horizontal direction and a vertical direction.
The aluminum frame of each wall unit is specifically formed by connecting a right frame, a left frame, an upper frame, and a lower frame made of a hollow aluminum extruded shape into a rectangular frame shape, and extruding a plurality of hollow aluminum extrusions. It has a frame structure in which an intermediate frame made of a profile is extended to the left and right.

[0005] The face plate forming the outer surface of the aluminum frame has a peripheral edge fixed to the plane portions of the upper frame, the lower frame, and the intermediate frame, and extends vertically between the upper frame and the intermediate frame and between the intermediate frame and the lower frame. A plurality is provided. A gasket having an arc-shaped outer periphery and a hollow bulge is mounted on four sides of the frame structure. Upper frame,
A drain frame having a running water surface that is lowered toward the front is attached to the intermediate frame. A mounting flat extends vertically from the flush surface of the drain frame. The running surface of the drain frame is seated on the inclined upper surfaces of the upper frame and the intermediate frame. The mounting flat portion is fitted into a mounting space provided in the upper frame and the intermediate frame.

In the right frame and the left frame, a front side space portion and a back side space portion which form a flat portion for fixing a face plate are connected at a side portion via a gap, and a projection which forms a mounting space for a rain barrier is provided. A projection formed on a side of the front space portion and forming a gasket mounting space has a cross-sectional shape formed on a side of the back space portion. The upper frame is integrated with the lower space that forms the flat part for fixing the face plate and the upper space that has the projections that form the gasket mounting space, and the inclined upper surface on which the flowing surface of the drain frame sits is lower. The mounting space formed on the upper side of the space portion and into which the mounting flat portion of the drain frame is fitted has a cross-sectional shape formed on the front surface of the upper space portion. The lower frame has a cross-sectional shape in which a lower space portion and an upper space portion forming a flat portion for fixing a face plate on the front surface are integrated, and a projection for mounting a gasket is formed on a lower surface of the upper space portion.

A wall surface is constructed by arranging a plurality of wall units in a horizontal direction and a vertical direction such that the gaskets are pressed and adhered to each other. Between the wall units adjacent in the horizontal direction, an equal pressure space is formed in which the front and rear surfaces of the right and left frames are partitioned by the surfaces of the front space portion and the back space portion. The rain barrier that separates the equal pressure space from the outside air has its head fitted into the mounting space of the right frame or the left frame, and its thin end faces the mounting space of the left frame or the right frame. The constant pressure space communicates with the outside air through the ventilation holes of the intermediate ventilation / waterproof cover attached to the side surfaces of the right frame and the left frame. Between the horizontally adjacent wall units, a drain / water blocking block is inserted and fixed between the drain frames mounted on the respective upper frames. The drainage / waterstop block is preferably provided with an elastic body that blocks horizontal running rainwater flowing horizontally on the drain frame and vertical running rainwater flowing vertically downward along the vertical joint. The constant pressure space communicates with the outside air even between the elastic bodies of the drainage / waterstop block.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An aluminum frame of a curtain wall according to the present invention comprises a right frame 110, a left frame 120 (FIG. 3), an upper frame 130 and a lower frame 140 made of extruded aluminum as shown in FIG. Are combined to form the frame structure 100. Since a plurality of face plates 200 are attached to the frame structure 100 to form a wall unit, an intermediate frame 15 for fixing the face plates 200 is provided.
0 is passed. The face plate 200 is a stainless steel, aluminum plate or the like having excellent corrosion resistance, and is usually 2.5 mx 1 m.
A plate material of about the size is used, and two or three intermediate frames 150 are inserted between the right frame 110 and the left frame 120 depending on the height of the curtain wall.
The right frame 110 and the left frame 120 have the same cross-sectional shape as shown in FIGS. The flat portions 111 and 121 are places where the face plate 200 is fixed, and the side portions 112 and 122 extend in the depth direction from the back surfaces of the flat portions 111 and 121, and
Rectangular front side space portions 113 and 123 are provided at the corners between the side portions 112 and 122 and the side portions 112 and 122.

On one side of the front side space portions 113 and 123, mounting projections 114 and 124 for mounting the rain barrier 310 (FIGS. 6 and 7) are provided. Mounting projection 114,
124 is at a position slightly retreated from the flat portions 111 and 121, and when the face plate 200 is attached to the flat portion,
0 to form a sealing material filling space g ₁ between the mounting projections 114 and 124. The side portions 112 and 122 extend to the rear side beyond the front side space portions 113 and 123 and extend to the rear side space portion 11.
Steel frame 430 on the side of 5,125 frames
(FIG. 7)
126 is provided inside. Front side space parts 113 and 123
Side portions 112 connecting the inner space portions 115 and 125
122 is slightly thicker to ensure strength. A gasket 32 is provided on one side of the rear side space portions 115 and 125.
0, and screw pockets 118 for connecting the upper frame 130 and the lower frame 140 to the inner surfaces of the rear space portions 115 and 125, respectively.
128 are provided.

An upper frame 130 and a lower frame 140 are provided at the upper end and the lower end of the right frame 110 and the left frame 120, respectively.
Are connected, and the number of intermediate frames 150 according to the height of the curtain wall is attached to the intermediate portion. The upper frame 130 is made of an extruded aluminum material having a sectional shape as shown in FIG. A flat portion 131 to which a face plate is attached is provided in a lower front part of the upper frame. A lower space portion 132 is provided on the back side of the flat portion 131, and an upper side of the lower space portion 132 is an inclined upper surface 133 slightly downward toward the front. Lower space 1
The forward angle of 32, groove as sealing material filling space g ₂ is formed between the face plate 200 attached to the flat portion 131 is formed. Above the lower space 132, an upper space 134 partitioned by ribs is provided. The locking projection 13 is provided above the front side of the upper space 134.
5 is provided, and the lower part of the front side is a lower space part 132.
Is slightly receded from the inclined upper surface 133 of FIG. This allows
Is mounting space g ₃ for mounting a draining frame 160 (FIG. 4) on the front of the upper space portion 135 is formed.

[0011] a pair of projections projecting from the upper end corner portion of the upper space 136, 136 is bent in the direction of the upper approach each other, a space g ₄ during which wears the gasket 320. One of the projections 136 protrudes to the front, splash stop fins 330 space g ₅ (FIG. 6) is attached is formed between the locking protrusion 135. The projection 137 protruding from the bottom wall of the lower space portion is bent to the rear side,
It has a wall unit in a space f ₁ the head 411 of the bolt 410 which is used to secure the steel frame 430 (FIG. 5) is housed. Also, the lower space 1
32, an upper frame 130 is provided on the inner surface of the upper space 134.
A screw pocket 138 is formed for accommodating a screw 421 (FIG. 2) used when connecting to the right frame 110 and the left frame 120. The lower frame 140 is shown in FIG.
The lower space 142 extending vertically and the upper space 143 extending horizontally are formed on the back side of the flat surface 141 to which the face plate 200 is attached, made of an extruded aluminum material having a cross-sectional shape as shown in FIG. It has. Lower space part 14
The second rear side 144 serves as a plane on which the splash fin 330 abuts.

[0012] projections 145 projecting from the bottom of the upper space portion 143 forms a space g ₄ for mounting the gasket 320. Projection 146 protruding from the upper side of upper space portion 143
Is a space f ₁ for accommodating the head 411 of the fixing bolt 410.
Work as Screw pockets 148 are formed on the inner surfaces of the lower space 142 and the upper space 143. The intermediate frame 150 is made of an extruded aluminum material having a sectional shape as shown in FIG. 3E, and includes an upper flat portion 151 and a lower flat portion 152 to which upper and lower face plates 200 are attached. Upper flat portion 151, the upper space 153 and the lower space portion 154 on the back side of the lower flat portion 152 is adapted to integrally shape through the ribs, fixed to the rear side bolt housing space f ₁ Are formed. On the front side, the upper space 153 and the lower space 154 are separated. The upper side of the lower space part 154 facing the upper space part 153 is an inclined upper surface 155 slightly lowered forward. The front end portion of the inclined upper surface 155, the groove serving as a sealing material filling space g ₂ is formed. A groove is also formed at the rear end of the inclined upper surface 155, and works as a mounting space g ₃ for the drain frame 160 together with the groove on the upper space 153 side. Screw pockets 158 are also formed on the inner surfaces of the upper space 153 and the lower space 154.

The drain frame 160 is made of extruded aluminum and has a substantially L-shape as shown in FIG. The main surface of the drain frame 160 is a flowing water surface 161 that is opened at an angle slightly larger than a right angle with respect to the mounting flat portion 162. Mounting flat section 162
The angle α between the mounting surface 16
2 upper frame 130, when accommodated in the mounting space g ₃ of the intermediate frame 150, flowing water surface 161 is inclined upper surface 133,
155 is set in parallel. If the water-repellent waterproofing agent is coated on the back surface of the mounting flat portion 162, rainwater is prevented from entering between the upper frame 130, the intermediate frame 150, and the drain frame 160.
The coating of the water stopping agent is also effective in preventing electrolytic corrosion when different materials come into metal contact. A slightly thicker holding protrusion 165 is formed below the front end of the flowing water surface 161. The holding protrusion 165 reinforces the drainer frame 160, and also includes the face plate 200 and each of the frames 110-15.
0 is pressing the upper portion of the face plate 200 so that no gaps to cover the sealant filling space g ₂ like water seal between the. Since the flowing water surface 161 protrudes forward from the surface of the face plate 200, the flowing rainwater drops at a position away from the surface of the face plate 200.

Next, the assembly of the curtain wall using the frames 110 to 150 will be described. Prior to the assembling work, the right frame 110 and the left frame 120 are, as shown in FIG. 2 (b), flat surfaces 111, 1 at a length interval in consideration of the width of the face plate 200 used for the curtain wall.
21, the front side space portions 113 and 123 are cut out. The upper and lower openings of the rear space portions 115 and 125 are closed by packing 341. The lower openings of the front side space portions 113 and 123 are closed by the sealing material 344. Upper frame 13
0, the lower frame 140 is connected at both ends to the right frame 110 and the left frame 120,
The plane portions 131, 141, the lower space portions 132, 142, and the upper space portions 134, 143 are cut off, leaving 7 and 147 (FIG. 2a). The packing 342 is applied to the cut end surfaces of the flat portions 131, 141, the lower space portions 132, 142, and the upper space portions 134, 143, and the openings are closed.

At the place where the intermediate frame 150 is assembled, cuts 119 and 129 (not shown) corresponding to the shape of the intermediate frame 150 are made on the right frame 110 and the left frame 120 as shown in FIG. An opening end surface of the intermediate frame 150 is also provided with a packing 34 having a similar shape.
It is closed with 3. Upper frame 1 with packing 342
Both ends of 30 are brought into contact with the side surfaces of right frame 110 and left frame 120, and screws 421 pierced through screw holes (not shown) of upper frame 130 are screw pockets 118 and 128 of right frame 110 and left frame 120. Then, a screw 421 pierced into a screw hole (not shown) of the right frame 110 and the left frame 120 is screwed into a screw pocket 138 of the upper frame 130 so that the upper frame 130 is moved relative to the right frame 110 and the left frame 120. It is fixed. Similarly, the lower frame 140 is connected to the right frame 11
0, fixed to the left frame 120.

The intermediate frame 150 is closed by the packing 343 so that the opening end is closed.
0, fit into cuts 119 and 129 of left frame 120. Then, the right frame 110 and the left frame 120
Screws 421 pierced into screw holes (not shown) are screwed into screw pockets 158, 158,.
Is fixed. The upper frame 130 and the lower frame 1
40, the right frame 110 and the left frame 120 where the intrusion of rainwater or the like is concerned before the intermediate frame 150 is fixed.
It is preferable to apply a water-repellent coating 351 to the surface portions near the upper ends of the flat portions 111 and 121. After the frames 110 to 150 are connected, the draining frame 160 and the face plate 200 are attached from the front side.

As the face plate 200, a stainless steel plate, an aluminum plate, or the like having a thickness of about 1.5 to 3 mm, which is excellent in corrosion resistance, durability, design, and the like, is used. Depending on demand,
The face plate 200 may be subjected to various kinds of painting and coloring. The face plate 200 usually has a size of about 2.5 m × 1 m, depending on the specifications, and each frame 110 has an appropriate interval.
To 150 plane portions 111, 121, 131, 141, 1
51, 152 are fixed with stud bolts or the like. Face plate 2
00, the back of the face plate 200 and the upper frame 1
30, to fill the sealant 361 to fill the space g ₂ formed between the intermediate frame 150 (FIG. 5). The sealing material 362 is also filled in the sealing material filling space g ₁ (FIGS. 3A and 3B) formed between the right frame 110, the left frame 120, and the back surface of the face plate 200 (FIG. 7).

Next, when the mounting flat portion 162 of the drainer frame 160 is fitted into the mounting space g ₃ ,
The drain frame is positioned in a state where 1 is parallel to the inclined upper surfaces 133 and 155. The positioned drain frame 160 is fixed to each frame 110 to 150 with a screw 422.
(FIG. 2). Drained frame 16 fixed
The upper end of the face plate 200 is pressed by the zero pressing protrusion 165, and the upper part of the sealing material 361 and the like are covered. Therefore, the mounting state of the face plate 200 is stabilized, and
Water tightness is ensured. Further, since the seal member 361 is not exposed to direct sunlight, deterioration of the seal member 361 is also suppressed. Thus, the lower frame 140 of the upper wall unit and the upper frame 1 of the lower wall unit
30 and the upper space 15 of the intermediate frame 150
3 and the lower open space 154, the front open space f ₂
(FIG. 5) has a bottom surface constituted by the running water surface 161 of the draining frame 160. In addition, if the waterproofing agent is coated on the back surface of the mounting flat portion 163, rainwater or the like does not enter the gaps between the frames 110 to 150 and the mounting flat portion 162.

The rain barrier 3 made of soft rubber, soft synthetic resin, or the like is used to waterproof each part of the wall unit on which the face plate 200 and the drain frame 160 are mounted.
10, the gasket 320 and the splash fin 330 are attached. As shown in FIG. 6A, the rain barrier 310 includes legs 312 extending from the head 311. The head 311 is hollow so as to be easily elastically deformed. The leg portion 312 becomes a thin portion 313 whose thickness is reduced in the middle. Protrusions 314 and 314 for retaining are formed on the head 311. The head 311 is shown in FIG.
The right frame 11 of one wall unit as shown in FIG.
The mounting space g ₆ defined by the mounting protrusions 114 of FIG.
a). The tip of the thin portion 313 is inserted into the rain barrier mounting space g ₆ (FIG. 3B) of the left frame 120 of the other adjacent wall unit. Of course, fitted to the head 311 in the mounting space g ₆ of the left frame 120, may be fitted a thin portion 313 in the mounting space g ₆ of the right frame 110.

Since the thin portion 313 is rich in flexibility, it is easily elastically deformed by wind pressure or the like, and a gap is formed between the thin portion 313 and the mounting projection 124 to allow invasion of outside air. As a result, the front side space portion 11 of the right frame 110 and the left frame 120
A portion surrounded by 3,123 and the back space portions 115, 125 becomes an equal pressure space V having the same pressure as the atmosphere. However, since the thin portion 313 has an elastic restoring force that tends to approach the mounting protrusion 124 side, the gap between the thin portion 313 and the mounting protrusion 124 does not become large enough to allow rainwater to enter. Since the constant pressure space V is provided between the front side space portions 113 and 123 and the back side space portions 115 and 125, a volume necessary for obtaining a sufficient equal pressure effect is secured, and furthermore, the wall unit has The thickness can be reduced. In this regard, in the curtain wall employing the conventional method, in order to secure the volume of the equal pressure space V, the wall unit itself has to be thickened, and as a result, the weight is increased and it is applied to the body of the building. The load tends to increase. Outside air enters the constant pressure space V from a gap between the mounting protrusion 124 and the rain barrier 310, but also enters through a hole 173 (FIG. 8) provided in the intermediate ventilation / waterproof cover 170 (FIG. 2B). .

As shown in FIG. 8, the intermediate ventilation / waterproof cover 170 is a metal piece having an L-shaped cross section.
10, a contact surface 171 applied to the back surface of the front space portions 113 and 123 of the left frame 120. The bent portion 172 bent at a right angle from the contact surface 171 is
It is pressed against 2. A ventilation hole 173 is formed substantially at the center of the bent portion 172 in the vertical direction, and screw holes 174 and 174 are formed above and below the ventilation hole 173. Vent 1
Since the 73 is provided substantially at the center in the vertical direction of the bent portion 172, rainwater does not enter the equal pressure space V from the ventilation hole 173. At the place where the intermediate frame 150 is attached, the intermediate ventilation / waterproof cover 170 is placed on the right frame 1 from the side.
10. Insert the screw 42 between the front side space parts 113 and 123 and the back side space parts 115 and 125 of the left frame 120,
1, the intermediate ventilation / waterproof cover 170 is attached to the right frame 11
0, fixed to the left frame 120. When the intermediate ventilation / waterproof cover 170 is fixed, the equal pressure space V between the wall units communicates with the outside air via the ventilation holes 173. Therefore, the constant pressure space V does not enter a reduced pressure state that promotes the intrusion of rainwater or the like, and the intrusion of rainwater or the like is reliably prevented in combination with the operation of the rain barrier 310.

As shown in FIG. 6 (b), the gasket 320 has a hollow bulging portion 321 and is a quadrangular frame-shaped member constituted by each side corresponding to the outer peripheral edge of the aluminum frame. It is. The bulging portion 321 has a substantially arc-shaped outer peripheral surface 3.
22 and a head 323 on the mounting side. Head 3
On 23, projections 324 and 324 for retaining are formed. The gasket 320, the right frame 110, left frame 120, the upper frame 130, the head 323 is inserted into the gasket installation space g ₄ provided on the lower frame 140. Thereby, the four sides of the aluminum frame are bordered by the gasket 320 as shown in FIG.

The splash fin 330 is mounted on the upper frame 1
6 has a length substantially equal to the width of the head 30 and has legs 332 extending from the head 331 as shown in FIG. Head 331 has a hollow shape so as to be easily inserted into the mounting space g ₅ of the upper frame 130. A flange 333 is provided between the head 331 and the leg 332.
The flange portion 333 is seated on the front surface of the locking projection 135,
The posture of the attached splash fin 330 is stabilized. When the wall units are vertically stacked, the ends of the legs 332 abut against the lower frame 140 of the aluminum frame of the upper wall unit from the rear side (FIG. 5), and the gap between the upper wall unit and the lower wall unit is formed. Close up.

The head 4 of the anchoring bolt 410 fixation bolt housing space f ₁ provided on the rear side of the frame 110 to 150
11, and the leg portion 412 is projected to the rear side (FIGS. 5 and 7). The legs 412 projecting from the fixed bolt housing space f _1, inserted into the bolt hole of the steel frame 430 assembled to the frame type (FIGS. 5, 7) (not shown), fastening the nut 413. Thus, factory assembly of the wall unit is completed. The assembled wall unit is transported to a building site and attached to a building vehicle via a conventional mounting bracket 6 (FIG. 1). When mounting the wall units, the vertically adjacent wall units are stacked as shown in FIG. The gaskets 320, 320 located between the upper wall unit and the lower wall unit are crushed by the weight of the upper wall unit and closely adhere to each other, thereby closing the gap between the horizontal joints. In addition, the splash fins 33
Since the 0 is in contact with the lower frame 140 from the back, splashes splashed by the rainwater on the drain frame 160 and the like are prevented from entering the inside of the wall from the gap between the upper and lower wall units.

As shown in FIG. 7, left and right gaskets 320, 32 are provided between horizontally adjacent wall units.
0 are crimped on each other to close gaps in vertical joints between horizontally adjacent units. In front of the gaskets 320, an equal pressure space V having a sufficient volume and communicating with the outside air is provided. Further, the equal-pressure space V is partitioned by a rain barrier 310 that allows intrusion of outside air but prevents intrusion of rainwater. A drain / water stop block 180 is attached to a location where the corners of the four wall units gather (FIG. 10). The drain / water blocking block 180 is a component formed by bending a stainless steel plate into a predetermined shape by sheet metal processing, and includes an inclined surface 181 that is seated on the water flowing surface 161 of the drain frame 160 in a state of being in close contact as shown in FIG. A vertical surface 182 rises from the rear end of the inclined surface 181, and a horizontal groove 183 into which the locking protrusion 135 of the upper frame 130 is fitted from the rear side is formed in the middle of the vertical surface 182. The front end of the inclined surface 181 is turned downward to form a fitting portion 184 into which the front end of the flush surface 161 of the draining frame 160 fits. It is preferable to coat an appropriate water-stopping agent on the lower surface of the inclined surface 181 and the rear surface of the vertical surface 182 in contact with the flowing water surface 161 and the mounting flat portion 162 of the drain frame 160 in order to prevent intrusion of water. The water stopping agent is a drain / water stopping block 180 made of stainless steel plate and a drain frame 16 made of aluminum.
It is also effective in preventing electrolytic corrosion due to metal contact with 0.

A soft elastic body 185 such as foamed resin or foamed rubber having high compressibility is adhered to the corner formed by the inclined surface 181 and the vertical surface 182. Soft elastic body 185
Acts as a dam that blocks vertical joints between horizontally adjacent wall units from the space above the drain frame 160 attached to each wall unit. The constant-pressure space V communicates with the outside air even between the soft elastic bodies 185 and 185. The soft elastic body 185 has a screw hole 1 for screw insertion.
86 are provided. The screw 424 inserted into the screw hole 186 penetrates a hole (not shown) of the draining frame 160, and is inserted into one of the screw pockets 118 and 128 (FIGS. 3a and b) of the right frame 110 and the left frame 120. Screwed. As a result, the drain / water blocking block 180 is attached to the location where the four wall units come together, and the gap displacement between adjacent wall units is absorbed in the event of an earthquake or the like. The screw hole 186 is pressed against the lower frame 140 of the aluminum frame of the upper wall unit stacked thereon (FIG. 5).
Therefore, it is not opened to the outside air.

The curtain wall attached as described above reliably prevents rainwater from entering the inside of the wall surface and maintains a beautiful wall surface for a long period of time. That is, the rainwater hitting the wall surface collides with the face plate 200 and flows down, as well as vertical joints between horizontally adjacent wall units, and horizontal joints between vertically adjacent wall units and between the upper and lower face plates 200. Some things get into the space. As shown in FIG. 12, the rainwater R ₃ that has fallen between the lower joint 154 and the upper joint 153 of the horizontal joint between the upper and lower wall units and between the lower space 154 and the upper space 153 of the intermediate frame 150 is a drainage frame located below each face plate 200. The water is received at 160, and most of the light is deflected by the flowing water surface 161, and is discharged to the front of the wall surface along the flowing water surface 161 (R ₃ ). At this time, drainer frame 1
60 is provided below each face plate 200, the amount of water to be treated in each drain frame 160 is reduced by each face plate 200.
Can be reduced to a small amount per sheet. As a result, the flow of rainwater along the transverse seam direction, which is the cause of the local excessive collection of rainwater, is significantly reduced. In addition, since the tip of the flush surface 161 of the drain frame 160 provided below each face plate 200 slightly protrudes from the wall surface, the face plate 200 located below
Rainwater is dropped at a position distant from the surface of the surface plate 200, and dripping water stains on the face plate 200 are suppressed. In addition, the projecting end of the flowing water surface 161 gives an accent to the constructed wall surface, and also improves the design of the wall surface.

Even if a large amount of rainwater R ₃ falls, since the horizontal running of the rainwater R ₃ flowing horizontally on the flowing surface 161 of the drain frame 160 is regulated by the soft elastic body 185, the rainwater R ₃ Rain barrier 3 along the vertical joint
10 does not flow into the outer surface. Moreover, the equal pressure space V is
The space between the ventilation hole 173 of the intermediate ventilation / waterproof cover 170 and the soft elastic bodies 185 and 185 of the drain / waterproof block 180 communicates with the atmosphere. Therefore, the constant pressure space V is not depressurized and does not suck the surrounding rainwater. On the other hand, most of the rainwater that enters the vertical joints is blocked by the rain barrier 310,
The water does not enter the constant pressure space V and flows down as outflow water R along the outer surface of the rain barrier 310. Here, the equal pressure space V
Has a sufficient volume and is in communication with the outside air, so that there is no decompression state that promotes intrusion of rainwater. Therefore, almost no rainwater enters the equal pressure space V against the rain barrier 310.

[0029] even when rainwater entering the equal pressure space V if, rainwater R ₁ which has entered flows down the inside between same pressure V (Fig. 1
2) Drainage provided for each unit at the top and bottom
The soft elastic body 18 which is an outside air opening of the water blocking block 180
5,185. The effluent R ₂ in which the effluent R and the intruding water R ₁ have joined is a soft elastic body 1
Since 85 acts as a dam, it flows along the inclined surface 181 of the drain / water blocking block 180 without spreading in the horizontal direction, and is discharged away from the wall surface. The amount of the effluent R ₂ is determined by the wall unit 1 because the drain / water stop block 180 is provided for each stage of the wall unit.
It becomes the quantity per sheet. In other words, rainwater R and R ₁ flows down along the vertical joints is not a large amount, such as overflows in the horizontal direction. Even if the amount becomes large, it is blocked by the soft elastic body 185 of the drain / water blocking block 180 and does not flow out toward the adjacent drain frame 160.

[0030]

As described above, in a building using a curtain wall according to the present invention, rainwater flowing down along the wall surface is deflected by the drain frame 160 disposed below each face plate. Is discharged to the front of the wall. For this reason, a large amount of rainwater gathers on a part of the wall surface, and the water does not flow down the wall due to torrent. In addition, since excessive collection of rainwater is avoided, rainwater that penetrates into the inside of the wall is also suppressed, the occurrence of corrosion due to the permeated water is suppressed, and a beautiful wall is maintained for a long period of time. In addition, the draining frames 16 attached to the respective vertical face plates 200
0 gives an accent to the wall surface and improves the design of the wall surface.

[Brief description of the drawings]

FIG. 1 is an explanatory view of an operation for constructing a wall surface using a conventional curtain wall.

FIG. 2 is a view showing assembly of a frame constituting a curtain wall according to the present invention (a) and installation of various packings (b).

FIG. 3 is a sectional view of a right frame (a), a left frame (b), an upper frame (c), a lower frame (d), and an intermediate frame (e) used in a curtain wall according to the present invention.

FIG. 4 is a perspective view of a drain frame mounted on the upper frame and the intermediate frame.

FIG. 5 is a side sectional view in which wall units are vertically stacked.

FIG. 6 is a sectional view of a rain barrier (a), a gasket (b), and a splash fin (c).

FIG. 7 is a plan sectional view in which wall units are horizontally butted.

FIG. 8 is a perspective view of an intermediate ventilation / waterproof cover having a ventilation hole for communicating the constant pressure space with the outside air.

FIG. 9 is a diagram illustrating the installation of a rain barrier, a gasket, and a splash fin.

FIG. 10 is a diagram illustrating mounting of a drainage / waterstop block.

FIG. 11 is a perspective view of a drainage / waterstop block.

FIG. 12 is a diagram for explaining a flowing state of rainwater that has poured down;

[Explanation of symbols]

100: Frame structure 110: Right frame
120: Left frame 111, 121: Flat part 112, 122: Side part 113, 123: Front space part 114, 12
4: Mounting protrusion 115, 125: Back side space
116, 126: Grooves for mounting fixing bolts 11
7, 127: mounting projection 118, 128: screw pocket 119, 129: cut 130: upper frame 140: lower frame 1
31, 141: Planar portions 132, 142: Lower space portions 133, 143: Inclined upper surfaces 134, 143: Upper space portions 135, 145: Locking projections 136, 146: Projections for mounting gaskets 137, 147: Mounting bolts Projection 13 for
8,148: Screw pocket 150: Middle frame 151: Upper flat part
152: lower flat portion 153: upper space portion 154: lower space portion 1
55: Inclined upper surface 160: Draining frame 161: Running water surface 1
62: Mounting flat part 163: Upper end 164: Lower end 170: Intermediate ventilation / waterproof cover 171: Contact surface
172: bent portion 173: vent hole 174: screw hole 180: drain / water blocking block 181: inclined surface
182: vertical surface 183: groove portion 184: fitting portion 185: soft elastic body 186: screw hole 200: face plate 310: rain barrier 311: head 312:
Leg portion 313: Thin portion 314: Retaining projection 320: Gasket 321: Swelling portion 322: Arc-shaped outer peripheral surface 323: Head portion 32
4: retaining projection 330: splash fin 331: head 3
32: leg 333: flange 341-3
44: Packing 351: Water-repellent coating
361, 362: Seal material 410: Fixing bolt 411: Head 412:
Leg 413: Nuts 421-424 screws
430: Steel frames g _1, g _2: sealant filling space g _3: mounting space of draining Frame g _4: mounting the gasket space g _5: splash stop fin mounting space g _6: rain barrier mounting space f _1: sticking bolt housing space f _2: the front open space V: between same pressure R: rain barrier rainwater (longitudinal Ri rainwater) R ₁ flowing down the outer surface: rainwater R ₂ has entered between same pressure: rainwater and merging R _3: sideways Rainwater that falls between the ground and the upper and lower spaces of the intermediate frame (lateral running rainwater)

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akira Takahashi 1-1-12 Minato, Chuo-ku, Tokyo Nisshin Sogo Construction Materials Co., Ltd. (72) Inventor Tsuguharu Kitagawa 1-1-12 Minato, Chuo-ku, Tokyo (72) Inventor Hiroshi Kawagishi 1-25-1, Nishishinjuku, Shinjuku-ku, Tokyo Taisei Corporation F-term (reference) 2E001 DA02 DA03 FA04 GA01 GA07 GA53 GA56 GA65 HB01 HB03 HB04 HD01 HD11 HE01 HE02 KA01 LA00 LA09 MA02 MA06 2E002 NA04 NB03 NC01 PA01 QA04 QB01 QC07 UA01 UA02 UA03 UB01 UB02 UB04 UB05 UB08 UB16 VA00 WA01 XA08 XA14

Claims (2)

[Claims] 1. An extruded 4 piece made of hollow aluminum extruded material
A frame structure in which a plurality of hollow aluminum extruded profiled intermediate frames are extended to the left and right in a rectangular frame shape, and a peripheral plate is fixed to a plane portion of the frame structure, and a plurality of face plates are provided in the vertical direction, A drain frame mounted on the frame structure above the upper face plate and between the upper and lower face plates;
A gasket attached to the side and having a hollow bulge with a circular arc on the outer periphery is provided.The drain frame has a flowing water surface inclined downward toward the front of the wall surface and a mounting flat portion extending vertically. In addition, an inclined upper surface on which the flush surface of the drain frame is seated is formed in the upper frame and the intermediate frame of the frame structure, and a mounting space into which the mounting flat portion of the drain frame is fitted is formed in the front surface of the upper frame and the intermediate frame. Curtain wall unit. 2. The curtain wall unit according to claim 1, wherein a tip portion of the drain frame protrudes forward from a surface of the face plate.