JPS6033214Y2 - curtain wall - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of a curtain wall of the type in which an upper frame and a lower frame are attached to mullions.

Conventionally, this type of curtain wall has had the disadvantage that traces of water flowing down the glass (or panel, etc.) surface remain in the form of spots and other stains, spoiling the aesthetic appearance of the glass surface.

Therefore, it is desired to have a watertight structure that can prevent water from entering from the outside, and to also be able to prevent the occurrence of such spots.

Therefore, an object of the present invention is to provide a curtain wall having a structure that equalizes the pressure inside the glass groove with the external pressure to prevent water from entering from the outside, and also prevents the occurrence of spots etc. due to water flowing down the glass surface. That's true.

In order to achieve the above object distantly, the curtain wall according to the present invention is characterized in that openings are provided at the lower side of the lower frame rim only at both ends of the lower frame rim that contact the mullions through end closing materials,
In addition, a notch hole is provided at an appropriate position on the upper side of the lower frame ridge that defines the lower glass groove and contacts the lower glass groove, and the lower glass groove that the lower frame ridge defines is formed between the opening, the notch hole, and the lower glass groove. It communicates with the outside through the hollow part of the frame rim.

Next, the present invention will be explained with reference to the drawings.

The figure shows one embodiment of the present invention, and this curtain wall has a mullion 1 and vertical glass grooves 2 on both sides thereof.
1, and upper frames 3 on both sides of the mullion 1, respectively. The upper frame ridge 4, the lower frame 5, and the lower frame ridge 6 are attached symmetrically.

The upper frame ridge 4 is attached to the outdoor side of the upper frame 3 to define an upper glass groove 19', and the lower frame ridge 6 is attached to the outdoor side of the lower frame 5 to define a lower glass groove 20.

In the figure, 7 is an external closing member that is attached to the outdoor groove of the mullion 1 and closes the gap between it and the outside of the lower frame 5, and 8 is the vertical glass groove 2.
1" is an airtight material that forms an indoor airtight wall, and 9 is an upper sealing material that is attached to the upper end of the mullioned rim 2, which closes the gap with the lower prospective surface of the upper frame 3, and is an upper sealing material. 17
It acts as a backup.

Please note that this is an estimate. refers to the thickness of the fittings, and therefore, the prospective surface here means the surface facing indoors and outdoors.

Reference numeral 10 denotes a lower sealing member attached to the lower end of the mullion rim 2, which closes the gap with the upper prospective surface of the lower frame 5 and acts as a backup for the lower sealing member 18.

In addition to these members, there is also an end sealing material 11 that is attached to the end of the lower frame 5 and has a watertight sealing material affixed to the surface in contact with the lower frame, and an end sealing material 11 that is attached to the end of the lower frame rim 6 and is attached to the end of the mullion 1. An end closing material 12 and an internal sealing material 13 are provided to close the gap with the external closing material 7. After the lower frame 5 is attached to the outdoor groove of the mullion 1, the internal sealing material 13 is installed between the mullion 1 and the outside. The groove formed by the closing material 7 and the end closing material 11 is closed.

The glass 14 of the curtain wall is placed in an upper glass groove 19, a lower glass groove 20 and a vertical glass groove 21, and is supported by a front glazing gasket 15 and a rear glazing gasket 16.

The upper sealing material 17 is provided in the space between the mullion 1, the lower prospective surface of the upper frame 3, the upper closing material 9, and the glass 14, and the lower sealing material 18 is provided on the mullion 1, the upper prospective surface of the lower frame 5, It is provided in the space between the lower closing material 10 and the glass 14.

Furthermore, in this curtain wall, as shown in FIG. 3, the lower frame ridge 6 attached to the mullion 1 via the end closing material 12 has wood cut portions 6a at both ends and an opening 6b at the lower side thereof.
The opening 6b is formed by the end closing member 12 and a draining portion 6a protruding from the end of the lower frame rim 6p.

Reference numeral 12a denotes a drainage portion provided on the outdoor side of the end closing material 12, which contacts the expected outdoor side surface of the mullion 1 and closes the lower frame rim 6.
Together with the draining portion 6a protruding from the end of the opening 6b, it serves to prevent ice from flowing into the opening 6b.

The lower frame ridge 6 is a hollow member, and the lower glass groove 20 communicates with the outside via the opening 6b, the hollow part of the lower frame ridge 6, and a notch hole 6d described below.

A Tee joint part is provided in the hollow part of the lower frame rim 6 along the longitudinal direction as necessary, and a notch hole 6c is formed at an appropriate position in the joint part, and further, the lower frame rim 6 in contact with the lower glass groove 20 is provided with a notch hole 6c at an appropriate position in the joint part. A notch hole 6d is provided in the upper part of the hollow part.

The notch hole 6d is preferably located at a position offset from the notch hole 6c in the longitudinal direction of the lower frame rim 6.

Since the curtain wall according to the present invention is constructed as described above, when external pressure such as wind pressure is applied to the outdoor side, the external pressure is taken in from the openings 6b at both ends of the lower frame rim 6.
External pressure is introduced into the lower glass groove 20 through the notch holes 6c and 6d, and further into the vertical glass groove 21 communicating with the groove and the upper glass groove 19 communicating therewith.

Therefore, the inside of each glass groove 19, 20, 21 is entirely equal to the external pressure, and water intrusion from the outside due to the pressure difference between the outside of the room and the inside of the glass groove is prevented.

Water that has entered due to other factors falls into the lower glass groove 20 due to the action of gravity, and the water accumulated there passes through the notch holes 6d and 6c provided in the lower frame rim 6 and the opening 6b at the end to the outside. The water discharged from the opening 6b flows down along the outdoor facing surface of the mullion 1 adjacent to the opening 6b.

Therefore, according to the present invention, the pressure inside each glass groove is always equal to the external pressure, which can appropriately prevent water from entering from the outside, and most of the water drained from the openings at both ends of the lower frame rim. Since the water flows down the outdoor facing surface of the mullion, only a small amount of water flows down the glass surface, so there is no staining such as spots on the glass surface, which will not spoil the aesthetic appearance of the glass surface. Prevented.

Moreover, since such openings are located at the ends of the lower frame ribs, they are not visible from the interior side, which is preferable from a design standpoint.

[Brief explanation of the drawing]

The figures show an embodiment of the curtain wall according to the present invention, in which Fig. 1 is a cross-sectional view thereof, Fig. 2 is a longitudinal sectional view thereof, and Fig. 3 is a lower frame rim provided on this curtain wall. It is a perspective view of an end. In the figure, 1 is a mullion, 3 is an upper frame, 5 is a lower frame, 6 is a lower frame rim,
6b is an opening, 12 is an end closing material, 20 is a lower glass groove,
Reference numeral 6c indicates a notch hole in the joint portion within the lower frame rim, and 6d indicates a notch hole in the upper side of the hollow portion of the lower frame rim.

Claims (2)

[Scope of utility model registration request] (1) In a curtain wall in which an upper frame and a lower frame are attached to a mullion, and a lower frame rim made of a hollow body is attached to the outdoor side of the lower frame and defines a lower glass groove, the ends are closed. Openings are provided in the lower side of the lower frame rim only at both ends of the lower frame rim that contact the mullion through materials, and cut holes are provided at appropriate positions on the upper side of the lower frame rim that contacts the lower glass groove. A curtain wall characterized in that the lower glass groove is connected to the outside through the notch hole, the hollow part of the lower frame rim, and the opening. (2) Utility Model Registration Scope of the Claims In the curtain wall according to claim 1, a joint portion is provided in the hollow portion of the lower frame ridge, and the joint portion has a notch hole at a position offset from the notch hole. Installed curtain wall.