JPH049767Y2 - - Google Patents

Description

[Detailed explanation of the invention] A. Purpose of the invention [Industrial field of application] This invention relates to a drainage system for a curtain wall that forms the outer wall of a building. Intruding rainwater and condensed water are collected, guided to flow down smoothly and stably, and drained through ventilation and drainage holes provided in a continuous manner.

[Conventional technology]

In a curtain wall that is made up of mullions arranged perpendicularly to the exterior of a building and mullions placed horizontally between the mullions, the four circumferences of facing materials such as glass plates are fitted and supported. The space between the mullion and the mullion is seamlessly provided through ventilation and drainage holes to equalize the air pressure inside the space and the outside air pressure, and maintain airtightness to the indoor side. It is practical to provide a drainage device in which a catch pan is installed on the side wall of the mullion so that infiltrated rainwater and condensed water flowing down the side wall of the mullion are flowed down to the top and discharged to the outside through the ventilation and drainage hole. It is known as shown in Publication No. 59-34648.

According to the above drainage device, water flowing down the wall surface of the mullion wall material fitting groove can be drained to the outside for each mullion wall material mounting portion, and the water flowing down the wall surface of the mullion wall material fitting groove can be drained to the outside. It is possible to avoid the risk of indoor water leakage due to a large amount of sewage flowing when the entire length of the drainage channel is constructed as a drainage channel.

[Problem that the invention attempts to solve]

The conventional drainage system in which a catch pan is installed on the wall of the mullioned face material fitting groove described above has the following problem that water often leaks into the room when subjected to large external wind pressure. .

In other words, if the airtightness of a part of the attached panel material and the sealing material on the indoor side of the mullion, mullion, or rim that supports it decreases, the air leakage from the mullion through hole due to external wind pressure may occur. Air flows into the room through the vertical interior space, and this air flow blows free-falling water from the bottom of the cathook pan to the top surface, and if the air flow is strong, it blows away the water from the bottom of the cathide pan. Air is blown up from the outlet, scattering the water collected in the catch pan, and the inflowing air with water droplets enters the room, causing water leakage.

B. Structure of the invention [Means for solving the problem] The present invention smoothly captures water on the mullioned wall surface as described above and allows the water to flow down to the mullion by using a water absorbing and water guiding member made of a fiber aggregate. This stabilization solves the problem of the generation of scattered water droplets when air is introduced in the case of the conventional catch pan.

In other words, the present invention provides a curtain wall with a panel mounting structure in which mullions are arranged without grids.
A holding member fixed to the wall surface of the water absorbing water guiding member made of a fiber aggregate that contacts the entire width of the wall surface of the mulloidal material fitting groove at the upper part of the blind mounting end, while holding the lower end of the water absorbing water guiding member. A drainage device for a curtain wall, characterized in that a part of the water absorbing water guiding member is extended downwardly, separated from the mullion wall surface, and its lower end is suspended over a blind upper surface to form a water flow guide path. The main points are as follows.

Curtain wall mullions usually have a flange portion for locking the leading edge of the panel material at the front end of a continuous portion protruding from the main mounting portion, and a flange portion for locking the front edge of the paneling material, and a flange portion between this and the main mounting portion or a ridge that engages with the main mounting portion. A face material fitting groove is formed in the face material fitting groove, and the blind end is inserted and supported in the face material fitting groove to fit and fix the face material periphery.

The water-absorbing and water-conducting member made of the fiber aggregate of the present invention is made by accumulating natural, artificial, and inorganic fibers at an appropriate density to have water-absorbing properties and water-conducting properties to guide the absorbed water downward, and is usually in the shape of a cotton strip. , felt, non-woven mat, or coarse fabric such as gauze, which are loosely laminated and bonded into a desired shape, can be used.

It is necessary to provide this water absorption and water guiding member so as to make contact with the entire width of the mullion wall surface of the mullion face material fitting groove, and for this purpose, the holding member is installed so as to sandwich the lower edge of the water absorption and water guiding member. Adheres to the vertical wall surface.

Therefore, this holding member can be held in contact with the bottom and lower side surfaces of the water absorbing and water guiding member, and the other side of the water absorbing and water guiding member is in contact with the wall surface of the mullioned face material fitting groove.For example, the upper surface and one side are open. It may be in the shape of a box or gutter.

A part of the lower part of the water absorbing water guiding member passes through the opening of the holding member and extends downwardly so as to hang above the mullion, away from the mullion wall surface, and a water flow that guides the water absorbed inside to the mullion. Form a lower guideway. It is preferable that the lower support surface of the water absorbing and guiding member of the holding member has a downwardly sloped surface toward the opening that serves as the water flow downward guide path.

Further, the lower end of the water flow guide path extending from the water absorption and water guiding member may be in contact with the continuous upper surface or may be made to have a slight gap therebetween.

[Effect]

Since the curtain wall drainage device of the present invention has the above-mentioned configuration, the water flowing down into the mullion is absorbed by the water absorption and water guiding member, and is guided upwardly through the water flow guide path through the interior thereof. , is discharged to the outside through a closed ventilation and drainage hole.

The water guided by this water absorbing water guiding member is
A stable flow is formed within the fiber aggregate,
Even strong air currents hitting its outer surface do not cause water splashing.

〔Example〕

Embodiments of the present invention will be described below with reference to the drawings.

Figure 1 is a perspective view of the main parts of the joint between the mullions and the blinds, Figure 2 is a sectional view taken along the line in Figure 4 showing the front exterior of the building's curtain wall, and Figure 3 is along the line in Figure 2. It is an arrow sectional view.

In Fig. 4, 1 is a mullion arranged perpendicularly and parallel to the outer surface of the building frame, 10 is a mullion placed horizontally between the mullions 1, and C is a fitting protrusion to which a facing material 15 such as a glass plate is fixed. , T is an opening/closing window section in which a window unit whose panel member 15 is rotatably supported by a stile or frame is fixed, and the relationship between both window sections with respect to the mullion 1 is as shown in the cross section of FIG. Base seal 5 of base 4 of mullion 1
The area between the mounting edge and the front edge flange 2 of the mullion becomes a face material fitting groove, and in the opening/closing window part T, the window unit frame part, and in the closing window part C, the blank 10 supporting the face material 15 and the face material The ridges 16 supporting the side edges of the ridges 15 are respectively fitted and held through appropriate packings.

Then, the inner wall surface 3 of the face material fitting groove of the above-mentioned mullion 1
A space communicating in the vertical direction of the mullion 1 is formed between the window frame body fitted and held in the groove, the blind 10, the panel 15, and the ridge 16, and each space is The air pressure inside the space is maintained equal to the outside air pressure through ventilation and drainage holes 12 provided on the front side of the open space 10.

The arrangement structure of the water absorption and water guiding member 21, which is the main part of the present invention, is as shown in FIGS. 1 to 3.
A water absorbing and water guiding member 21 made of a polyester fiber cotton band is placed in contact with the entire horizontal width of the inner wall surface 3 of the face material fitting groove of the mullion 1 slightly above the mounting end of the gutter. A holding member 22 having a shape is fixed to the inner wall surface 3 of the mullion 1.

A part of the water absorption and water guiding member 21 is extended downward through an opening provided in the gutter-shaped holding member 21, and is separated from the inner wall surface 3 of the mullion 1 so that its lower end is at the end of the open end 10. A water flow guide path 23 is formed by hanging down so as to contact or be close to the upper surface of the inner side plate support edge 11 of the edge plate 13 .

With the above configuration, water that enters the face material fitting groove of the mullion 1 or flows down the mullion inner wall surface 3 due to dew condensation is smoothly absorbed by the water absorption and water guide member 21 and stably flows into the water flow guide path 23. Induced, Mume10
The water flows down onto the support edge 11 of the face material, and is discharged to the outside through the ventilation and drainage holes 12 on the front surface thereof.

The above-mentioned drainage device is installed in the mullions and the blind joint of the curtain wall, and may not be installed in the opening/closing window section depending on the conditions of the window unit, but it may not be installed in the closing window section at the bottom of the opening/closing window section. By providing a drainage device at the blind mounting position, the drainage effect described above can be achieved, and the overall drainage condition can be improved.

FIG. 5 is a perspective view of another embodiment in which a felt-like fiber aggregate 21' is held as a water absorption and water guiding member by a holding member 22' made of a plate spring with a stepped part. A part of the lower part of the felt-like fiber aggregate 21' extends diagonally downward from the opening, and the lower part hangs down to form the water flow guide path 23'.
In this case, it is possible to mount a water absorption and water guiding member suitable for a case where the mullion face material fitting groove space is narrow.

C. Effect of the invention As explained above, according to the invention, when the airtightness of the curtain wall decreases, the condition of water flowing from the mullions to the mullions is affected by the air flow flowing into the mullions. This system allows stable drainage without water leakage, avoids water leakage accidents caused by flying water droplets, and improves the watertightness of the curtain wall.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a perspective view of the main part, FIG. 2 is a sectional view taken along the line shown in FIG. 4, and FIG.
3 is a sectional view taken along the arrow in FIG. 2, FIG. 4 is a front view of the external appearance of a building curtain wall, and FIG. 5 is a perspective view of a main part of a water absorption and water guide member mounting structure in another embodiment. 1... mullion, 2... front end flange, 3... mullion inner wall surface, 4... base, 5... base packing, 10
...No opening, 11... Face material support edge, 12... Ventilation and drainage hole, 15... Face material, 16... Ribbed edge, 21... Water absorption and water guide member, 22... Holding member, 23... Water flow guide Road.

Claims (1)

[Scope of utility model registration request] In a curtain wall having a panel mounting structure in which a grid is provided between mullions, a water-absorbing and water-conducting member made of a fiber aggregate that contacts the entire width of the wall surface of the mullion panel fitting groove at the upper part of the panel-free mounting end is provided. The lower edge of the water-absorbing and water-conducting member is supported by a holding member fixed to the wall surface so as to sandwich it, and a part of the water-absorbing and water-conducting member is extended downward, separated from the mullion wall surface, and its lower end is closed. A drainage device for a curtain wall, characterized in that it hangs down from the upper surface and serves as a guideway for water flow downward.