JPH08199716A - Drainage structure of unit curtain wall - Google Patents

Abstract

PURPOSE: To drain rainwater which has penetrated in the space with a certain constant pressure at the mutual joints of units, at every unit and prevent damage like breakage of a seal, resulting from flowing down of rainwater to the lowermost position in the hollow part of the vertical frame as it was, to appropriately drain the rainwater. CONSTITUTION: Rainwater which has penetrated in the space with a certain constant pressure between units is received by a catch pan 15 placed on the upper frame and dropped on the hollow part of a vertical frame through a drain hole 6. The rainwater flowing down to the hollow part is catched by a water receive member 16 at the lower end of the vertical frame and discharged to the outside through a closing material 17 of a joint thereunder.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a unit type curtain wall assembled by a fitting method, and more particularly to a drainage structure for draining rainwater entering an isobaric space at a joint between adjacent units to the outside. Regarding the improvement of.

[0002]

2. Description of the Related Art Conventionally, this type of unit curtain wall
At the factory, all materials such as glass, fireproof board, and brackets for mounting the unit are manufactured as a unit, so they are brought into the site as a unit, and the upper and lower sides of each unit are fitted continuously. It is constructed by a dry construction method in which it is fitted by a combined method (inter-locking method), and a drainage structure is also constructed in the process. Therefore, there are advantages such as high factoryization rate and short construction period.

FIG. 9 shows an example of a unit curtain wall. Each unit 1 is assembled by a fitting method in the vertical and horizontal directions, and the left and right units 1 are connected by a joint connecting member for holding a level. To be done. For sealing the joint between the units, as shown in FIG. 10, a plurality of flanges projecting above the upper frame 2 of the unit and corresponding flanges projecting below the lower frame 3 of the unit above it. A first packing 4 and a second packing 5 are provided therebetween, and a water draining hole 6 is formed in the upper frame 2, and a space between the first and second packings 4 and 5 through the water draining hole 6. 7 is an isobaric space.

Further, regarding the vertical frames 8 of the adjacent unit 1, as shown in FIG. 11, the first packing 9 for draining water and the first packing 9 for draining are provided between the corresponding ones of the plurality of flanges protruding from the vertical frames 8. The second packing 10 for preventing air leakage was provided on the indoor side. The space 11 between the packings 9 and 10 communicates with the constant pressure space 7 between the upper frame 2 and the lower frame 3 to form a constant pressure space. Also, the upper frame 2 for draining
There is a draining flange 12 on the outer side of the and one vertical frame 8
A drainage flange 13 was provided on the.

Rainwater is prevented from entering by the first packings 4 and 9 for draining water and the flanges 12 and 13 for draining water.
The rainwater that has invaded 1 and has entered the vertical frame 8 through the drain hole 6
In the space between them, that is, in the hollow portion 14, the hollow portion 14
It becomes a gutter and descends all the way down to the bottom, but the conventional drainage structure has the following problems.

[0006]

As described above, in the conventional drainage structure, the rainwater that has entered the isobaric spaces 7, 11 is made to flow into the hollow portion 14 between the vertical frames 8 and is discharged to the outside at the lowermost portion. Therefore, there is a problem that the amount of water increases as it goes downward, and thus the burden on the bottom seal is large, causing defects such as seal breakage, and the risk of water leakage. It was

An object of the present invention is to eliminate the above-mentioned problems of the prior art. Therefore, a unit capable of appropriately draining invading rainwater without placing a heavy burden on the bottom seal. The purpose is to provide a drainage structure for a curtain wall.

[0008]

In order to achieve the above object of the present invention, the drainage structure of a unit cart wall according to the present invention is a unit type cart wall assembled by a fitting method. , The rainwater that has entered the isobaric space at the joint between adjacent units is received by the catch pan placed on the upper frame, and from the water drain hole formed on the upper frame to the outdoor side of the isobaric space of the vertical frame In a drainage structure designed to drop into an existing hollow part, a water receiving member adapted to receive the water dropped in the hollow part of the vertical frame of the unit and flow it to the outside is a vertical frame of the unit. A joint closing member, which is installed at the lower end of the unit and receives the water flowing out to the outside from the water receiving member and flows it to the outside, is installed on the upper frame of the unit below the unit.

In a preferred mode of the present invention, the water receiving members are installed in a fitted state at respective lower ends of the vertical frames to be joined to each other, and the pair of water receiving members are arranged so as to substantially contact each other. It is characterized by being.

In another preferred form of the present invention, each water receiving member is provided with a groove that descends toward the outside in the center, and both sides of the groove are inclined surfaces that descend toward the groove. Is characterized by.

According to still another preferred embodiment of the present invention, a protrusion protruding downward is provided along the inner surface of the lower surface of the water receiving member in order to prevent water from entering the unit joint. .

In another preferred form of the present invention, a toy is provided on the indoor side of the catch pan in contact with the catch pan, and the toy prevents water from entering the indoor side. It is characterized by that.

In still another preferred embodiment of the present invention, a plurality of grooves extending laterally from one end to the other end are formed at the top of the outer side wall of the catch pan.

[0014]

In the drainage structure of the unit curtain wall according to the present invention, the rainwater that has entered the isobaric space at the joint between the units is received by the catch pan of the upper frame, and from there, passes through the water drain hole to form the vertical frame. The water flowing down to the hollow portion is received by the water receiving member at the lower end of the vertical frame and flows to the outside there, and passes through the joint closing member provided under the outside to the outside. Spill to. Therefore, the invading water is discharged to the outside for each unit.

If water receiving members are provided at the respective lower ends of the vertical frames that are joined to each other and the water receiving members are configured to substantially contact each other, the water receiving member will undergo a large interlayer displacement during an earthquake or the like. Since the members collide with each other and the respective units are displaced by the same amount, there is no variation in the joints and the loads applied to the respective units become equal.

If a groove that descends toward the outside is provided in the center of the water receiving member and both sides of the groove are inclined surfaces that descend toward the groove, the water receiving member will pass through the hollow portion. The water received at is collected in the groove, and is appropriately discharged to the outside through the joint closing material from the groove.

Further, if a projecting piece that projects downward is provided along the inner surface of the lower surface of the water receiving member, the spray that enters from the gap between the water receiving member and the joint closing member hits the projecting piece. Prevents splashes from entering joints and backflow of water from drain holes.

When the toy is installed on the catch pan in contact with the catch pan, the seal part as a wind barrier on the indoor side of the catch pan is reinforced, and the seal part is filled with water. Prevent it from being transmitted.

Furthermore, if a plurality of grooves extending laterally from end to end are formed at the top of the side wall on the outside of the catch pan, the water adhering to the top is made to flow in the horizontal direction, and the water is admitted to the inside of the room. Prevent it from flowing.

[0020]

Embodiments of the present invention will now be described with reference to the drawings. A unit curtain wall to which the drainage structure according to the present invention is applied also has a proper number of units 1 vertically and horizontally arranged as shown in FIG. 9 and assembled by the fitting method as described above. 1 to 3 show a preferred embodiment of the present invention, in which an upper frame 2 and a lower frame 3 are used as in the conventional case.
A first packing 4 and a second packing 5 are provided between them, an isobar space 7 is provided between the packings, and a drain hole 6 is formed in the upper frame 2.

Further, as shown in FIG. 2, the first packing 9 and the second packing 1 are also provided between the vertical frames 8 which are joined to each other.
0 is provided, and the space 11 between them communicates with the constant pressure space 7, and further communicates with the water drain hole 6 through the constant pressure space 7. The outer side of the constant pressure space 11 between the vertical frames 8 is a hollow portion 14, and rainwater that has entered the constant pressure space 7 is received by the catch pan 15, passed through the water drain hole 6, and dropped into the hollow portion 14. It has become.

The feature of the drainage structure of the unit curtain wall according to the present invention is that, as shown in FIGS. 1 and 2, the vertical frame 8 of the unit 1 includes the catch pan 15 mounted on the upper frame 2. Lower end of the vertical frame 8, more specifically, a water receiving member 16 provided at the lower end of the hollow portion 14 of the vertical frame 8, and a joint closing member 17 provided under the water receiving member 16 and adjacent thereto.
That is, the water that has flowed down into the hollow portion 14 between the vertical frames 8 is discharged to the outside for each unit by these members.

The water receiving member 16 is preferably made of resin, is installed so as to be fitted in the hollow portion 14 of the vertical frame 8, and is fixed by a mounting screw. The water receiving member 16 plays a role of receiving the water dropped from the catch pan 15 through the water draining hole 6 and into the hollow portion 14 and flowing it to the outside, so that the upper surface of the water receiving member 16 becomes lower on the outside. It is inclined.

Preferably, the water receiving member 16 is, as shown in FIG. 3, a groove 16 that descends toward the outside at the center of the upper surface.
The part 1 in which a is formed and which is stepped down at the outer end thereof
6b is provided. Further, both sides of the groove 16a are inclined surfaces that descend toward the groove, and the water that has flowed down onto the water receiving member 16 enters the groove 16a and the groove 16a
Along the outer side, and flows down from the end portion 16b to the joint closing member 17 therebelow.

Further, a pair of water receiving members 16 are provided in the hollow portion 14.
Is preferably provided at the lower end of each of the vertical frames 8 in which water receiving members 16 are attached and joined to the respective lower ends of the vertical frames 8 joined together as shown in FIG. The members 16 are disposed in close contact with each other, that is, in a state of being in contact with or almost in contact with each other, and when the interlayer displacement occurs, the water receiving members 16 abut against each other and are displaced together. To be done. Such a configuration has an advantage of eliminating joint variations.

As shown in FIG. 1, the joint closing member 17 is placed on the outer side of the upper frame 2 and is provided immediately below the outer side of the water receiving member 16, and the water receiving member 16 on the upper side of the joint closing member 17 extends to the outer side. It is configured to receive the discharged water and discharge it to the outside. This joint closing material 17 is also usually made as a resin molded product. As clearly shown in FIG. 3, the joint closing member 17 is provided with a projecting piece 17a projecting upward at the top, and the projecting piece blocks the gap between the vertical frames 8 of the upper and lower units. In addition to the above, drainage flanges 12 and 13 are provided as in the conventional case.

Therefore, in the drainage structure of this unit curtain wall, the rainwater is prevented from entering by the draining flanges 12 and 13 and the packings 4 and 9, but the drain hole 6 and the packings 4 and 9 are not provided. Isobaric space 7, through the gap
Rainwater entering 11 is received by the catch pan 15 of the upper frame 2, and the water collected in the catch pan 15 flows down through the drain hole 6 and into the hollow portion 14 of the vertical frame 8. Hollow part 14
The water that has flowed down to is received by the water receiving member 16, flows from there to the outside, flows down to the joint closing member 17 provided therebelow, and is discharged to the outside through it.

Preferably, as shown in FIGS. 1 and 4, a projecting piece 18 is integrally provided so as to project downward along the inner surface of the lower surface of the water receiving member 16. Providing such a projection piece 18 has an advantage of preventing splashes from entering the drain hole 6 and splashes into the unit joint. As shown in FIG. 4, a projection 19 is provided on the side surface of the water receiving member 16 on the indoor side, and the projection 19 is inserted into the vertical joint between the vertical frames 8 and serves to adjust the vertical joint width.

More preferably, as shown in FIGS. 5 and 6, a toy 20 is provided on the indoor side of the catch pan 15 provided on the upper frame 2 in contact with the catch pan 15.
The toy 20 is made of an airtight and relatively flexible material such as a sponge material, and as shown in FIG. 6, the width dimension of the equal pressure space 11 between the vertical frames 8, that is, the width dimension equal to the found dimension. Therefore, the width of the isobaric space 11 is full.

Further, as shown in FIGS. 6 and 7, the toy 20
Preferably, a suitable number of longitudinally extending grooves 21 are formed in the groove to facilitate compression by such grooves 21 and to guide and facilitate the descent of water.

In another preferred embodiment, as shown in FIGS. 1, 2 and 8, a plurality of laterally longitudinally extending tops of the outer side walls of the catch pan 15, ie, extending from end to end. Groove 22 is formed. As shown in FIG. 1, this groove 22 abuts on the lower end surface of the vertical frame 8 above it, so that the presence of the groove 22 reduces the resistance during interlayer displacement and easily follows the displacement due to thermal strain. To enable. In addition, the water attached to the groove 22 is caused to flow in the lateral direction to prevent the water from flowing to the indoor side.

More preferably, as shown in FIGS. 1 and 2, a packing 23 having an annular cross section is provided on the inner side of the second packing 5 located between the upper frame 2 and the lower frame 3, and the vertical frame. 8
Between the first packing 9 and the second packing 10 in between, packings 24 and 25 having an annular cross-section that abut against each other are also provided to complete the sealing. Further, since these packings 23, 24, 25 are flexible, they follow relative displacement between units and have excellent sealing property.

[0033]

As described above, according to the present invention, in the unit curtain wall, the rainwater that has entered the isobaric space of the unit joining portion is received by the catch pan of the upper frame and is passed through the drain hole. The water that has flowed down to the hollow part of the vertical frame is received by the water receiving member of each unit, and is discharged to the outside through the joint closing member. Is discharged to the
It does not run down to the bottom of the section. Therefore, the lowest seal is not overloaded and there is no risk of water leakage. Further, water does not stay in the joint portion of the unit, and the water tightness is improved.

Further, if water receiving members are provided at the lower ends of the vertical frames joined to each other so as to contact each other,
When the interlayer displacement occurs, the water receiving members collide with each other and the displacement amount of each unit becomes equal, so that there is no joint variation and the load applied to each unit becomes uniform.

If a groove descending toward the outside is formed at the center of the upper surface of the water receiving member and the water dropped on the upper surface is formed so as to flow into the groove, the water received by the water receiving member is formed. Are collected in the groove and properly discharged to the outside through the joint closing material.

Further, if a protrusion protruding downward along the inner surface of the lower surface of the water receiving member is provided, it is possible to prevent the water splash entering through the gap between the water receiving member and the joint closing member from entering the unit joint. Also, prevent water from entering the water drain hole.

If a toy is provided on the catch pan, water can be prevented from entering the seal portion as a wind barrier and the watertightness can be improved.

If a plurality of laterally extending grooves are formed on the top of the outer side wall of the catch pan provided on the upper frame, the water adhering to the top will be prevented from entering the indoor side, and the watertightness will be improved. Contribute to the improvement of.

[Brief description of drawings]

FIG. 1 is a cross-sectional view taken along the line AA in FIG. 9 and is a vertical cross-sectional view illustrating a drainage structure of a unit curtain wall according to the present invention.

FIG. 2 is a cross-sectional view taken along the line BB in FIG. 9, illustrating a drainage structure of the unit curtain wall according to the present invention.

FIG. 3 is a perspective view showing main members of the drainage structure of the unit curtain wall according to the present invention.

FIG. 4 is a perspective view showing a modified example of a water receiving member which is a main member of the drainage structure according to the present invention.

FIG. 5 is a longitudinal sectional view of a part of a unit curtain wall showing a preferred embodiment of the present invention.

6 is a cross-sectional view showing the embodiment of FIG.

FIG. 7 is a perspective view showing main members in the embodiment of FIG.

FIG. 8 is a perspective view showing a modified example of a catch pan which is a main member of the drainage structure according to the present invention.

FIG. 9 is a front view showing an example of a unit curtain wall to which the present invention is related.

FIG. 10 is a vertical cross-sectional view showing a conventional unit curtain wall.

FIG. 11 is a transverse cross-sectional view showing a conventional unit curtain wall.

[Explanation of symbols]

 1 Unit 2 Upper Frame 3 Lower Frame 6 Drainage Hole 7 Isobaric Space 8 Vertical Frame 11 Isobaric Space 14 Hollow Part 15 Catch Pan 16 Water Receiving Member 17 Joint Closing Material 18 Projection Piece 20 Toy 22 Groove of Catch Pan

Claims (6)

[Claims] 1. A unit-type cart wall that is assembled by a fitting method, wherein rainwater that has entered an isobaric space at a joint between adjacent units is caught by an upper frame. In a drainage structure that is designed to drop from the water drain hole formed in the receiving and upper frame to the hollow part outside the isobaric space of the vertical frame, it fell to the hollow part of the vertical frame of the unit. A water receiving member that receives water and flows to the outside is installed at the lower end of the vertical frame of the unit,
And a joint blocking member for receiving the water flowing out to the outside from the water receiving member and flowing it to the outside, is installed on the upper frame of the unit below the unit. . 2. The water receiving member is installed in a fitted state at respective lower ends of vertical frames joined to each other, and the pair of water receiving members are arranged so as to substantially contact each other. The drainage structure for a unit curtain wall according to claim 1. 3. The water receiving member is characterized in that a groove that descends toward the outside is provided at the center of the upper surface, and both sides of the groove are inclined surfaces that descend toward the groove. Item 1. The drainage structure of the unit curtain wall according to item 1. 4. The unit cover according to claim 1, further comprising a protrusion protruding downward along the inner surface of the lower surface of the water receiving member in order to prevent water from entering the unit joint. Tenwall drainage structure. 5. A toy is provided on the indoor side of the catch pan in contact with the catch pan, and the toy prevents water from entering the indoor side. The drainage structure of the unit curtain wall described in 1. 6. The unit cover according to claim 1, wherein a plurality of grooves extending laterally from one end to the other end are formed at the top of the side wall on the outer side of the catch pan.
Tenwall drainage structure.