JP2003293659A - Windowpane mounting structure in sash frame for curtain wall - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the displacement of a windowpane after the earthquake, and to use glazing gaskets on both faces of the windowpane. <P>SOLUTION: The windowpane 3 is fixed by inserting the gaskets 5 respectively between each of outdoor-side and indoor-side flange parts of left and right pair of vertical frames 1 and upper and lower pair of lateral frames 2, and a windowpane face of a windowpane edge part, and an elastic member 8 is inserted into a clearance between a web part 11 of at least one of the left and right pair of vertical frames 1 and the windowpane edge part to press and return the displaced windowpane by elastic force. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass mounting structure for a sash frame for a curtain wall used for a building outer wall.

[0002]

2. Description of the Related Art A rectangular sash frame made of a light alloy is used for a curtain wall used for an outer wall of a building. The glass fitting part of the sash frame has two flanges parallel to the glass surface and a web at right angles to the glass surface, and a U-shaped glass groove is formed. Drive the sealing material into the gap in the direction to fix it,
And it is sealed. A conventional general glass mounting structure will be described with reference to the drawings.

FIG. 5 is a horizontal sectional view showing a part of the curtain wall. Reference numeral 1 is a vertical frame, 11 is a web portion of a U-shaped glass groove formed on the outer surface side, and 12 is a flange portion. However, in this example, for ease of glass fitting work and other reasons, the outside has a push-in type pushing edge 12a, and the inside has a screw-type auxiliary frame 12b. 3 is glass, 5 is a gasket (glazing gasket, hereinafter simply referred to as gasket), 6 is a backup material, and 7 is a sealing material.

The gasket 5 used on the indoor side is a molded product of soft rubber, and is fitted and attached to a ridge formed on a sash frame which is an extruded aluminum material. In this example, the glass is fixed by being attached to the glass side of the auxiliary frame 12b and being inserted between the glass surface of the glass edge portion. On the other hand, the backup material 6 used on the outdoor side is a hard plate or rod-shaped body, although the material is not specified, and the sealing material 7 is a paste-like filling material. After the backup material 6 is inserted in the gap between the sash frame and the glass, the sealing material 7 is filled in front of it. Sealing material 7 after filling
Cures and fixes the glass 3, and at the same time seals the gap between the sash frame and the glass.

If a gasket is used on the outdoor side as well as on the indoor side, the work of filling the sealing material 7 is not required, and there is an advantage that the curing and curing period of the sealing material 7 is not required and the durability is also excellent. However, when the building was horizontally displaced due to an earthquake, slippage occurred between the glass surface and the gasket, the glass moved horizontally with respect to the sash frame, and after the earthquake, the sash frame returned to the lower position. However, there is a problem that the glass is still broken and cannot be restored. FIG. 6 is a schematic view showing this situation, 2 is a horizontal frame, 4 is a glass 3
It is a hard rubber setting block that is placed underneath. (A) shows a normal state, and (b) shows a state where the glass 3 is displaced.

On the other hand, since the sealing material 7 has elasticity even after being hardened, the sealing material 7 is sheared while being adhered to both the glass surface and the sash frame, and its resistance force causes the glass to return to its original position. There is. For this reason, it has been a general glass attachment structure to date that a gasket having good workability is used on one side, but the sealing material 7 is used on the other side.

[0007]

DISCLOSURE OF THE INVENTION The present invention realizes a glass mounting structure which uses gaskets on both the inner and outer surfaces of glass and has a function of returning to the original even if horizontal displacement occurs in the event of an earthquake. The purpose is to do.

[0008]

According to the present invention, there is provided a sash frame for a curtain wall in which glass is fitted inside a rectangular sash frame composed of a pair of left and right vertical frames and a pair of upper and lower horizontal frames. In the mounting structure, a gasket is inserted between the pair of left and right vertical frames and the pair of upper and lower horizontal frames on the outdoor side and between the indoor side flange portion and the glass surface on the end side to fix the glass, and A glass mounting structure in a sash frame for a curtain wall, characterized in that an elastic member is inserted in a gap between at least one of the vertical frame web portion and the glass edge portion,
Desirably, the elastic member has breathability, and is a glass attachment structure in the sash frame for the curtain wall.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a horizontal cross-sectional view showing a part of the curtain wall of the embodiment, wherein the reference numerals are the same as those used so far, and 8 is an elastic member used in the present invention. That is, the gasket 5, between the glass surface of the glass 3 and the outdoor side and indoor side flanges of the pair of left and right vertical frames 1, 1,
5 is inserted to fix the glass 3, and an elastic member 8 is inserted into a gap (edge clearance) between the web portion and the glass edge portion of the pair of left and right vertical frames 1. It should be noted that the setting block 4 made of hard rubber is inserted into the gap between the web portion and the glass edge portion of the remaining one vertical frame 1 instead of the elastic member 8. This is because this embodiment has a large vertical length. Sash (for example, width 1600 mm x height 40
00mm), the setting block 4 is inserted on the side of the vertical frame that is different from the used state to carry it sideways.
If there is no such need, it is desirable to use the elastic members 8 on both sides.

Although not particularly shown, gaskets are used on the inner and outer surfaces of the glass for the upper and lower horizontal frames as well. Figure 2
FIG. 3 is a horizontal sectional view schematically showing the glass mounting structure of the present invention. (A) shows a normal state, (b) shows a state in which the glass 3 is displaced in the direction of the arrow. The elastic member 8 on the displaced side is compressed, but when the external force due to the earthquake disappears, the glass 3 is pushed back by the elastic force and returns to the normal state of (a).

FIG. 3 is a schematic view of this as seen from the front of the glass. (A) shows a normal state, (b) shows the case where the glass 3 is displaced relative to the sash frame. There are a total of four elastic members 8 arranged on both sides of the glass 3 in upper and lower two stages.
In (b), the upper left and lower right are compressed. Eventually, these will be restored to restore the normal state of (a).

FIG. 4 is a perspective view illustrating various shapes of the elastic member 8. 8a is a rectangular parallelepiped, 8b is a hollow oval cross-section,
8c is a hollow cylinder, and 8d is a round bar. The length of the elastic member 8 may be the entire length of the vertical frame 1, but short members may be arranged at appropriate intervals. The material is preferably soft rubber, soft rubber foam, foaming resin, metal spring, or the like. In particular, when adopting an isobaric construction method in which a space that is isobaric to the outside air is formed inside the sash to improve the watertight performance, if this elastic member 8 is made to have air permeability, air will be permeable through the elastic member 8. Is convenient because it will be distributed.

The glass is not limited to the single plate glass as illustrated in the drawings, but may be a multi-layer glass. The same applies when a board or the like is used instead of glass.

[0014]

According to the present invention, even if a gasket is used for both the inner and outer surfaces of the glass, a glass mounting structure having a function of returning to the original even if horizontal displacement occurs during an earthquake is realized. The glass attachment work is highly efficient, and the durability of the seal portion is also improved, which is an excellent effect.

[Brief description of drawings]

FIG. 1 is a horizontal sectional view showing a part of a curtain wall according to an embodiment of the present invention.

FIG. 2 is a horizontal sectional view schematically showing the glass mounting structure of the present invention.

FIG. 3 is a front view schematically showing the operation of the present invention.

FIG. 4 is a perspective view illustrating various shapes of an elastic member according to the present invention.

FIG. 5 is a horizontal cross-sectional view showing a part of a conventional curtain wall.

FIG. 6 is a schematic diagram illustrating a problem in the conventional technique.

[Explanation of symbols]

1 vertical frame 2 horizontal frames 3 glass 4 setting blocks 5 gasket 6 backup materials 7 Sealant 8 elastic members 11 Web part 12 Flange 12a pushing edge 12b auxiliary frame

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Teruyuki Takeda             1-1 1-1 Yamate, Funabashi City, Chiba Prefecture             Inside the Iron Co., Ltd. F-term (reference) 2E016 AA05 BA00 BA06 CA01 CB01                       CC01

Claims (2)

[Claims] 1. A glass in a sash frame for a curtain wall, in which a glass (3) is fitted inside a rectangular sash frame composed of a pair of left and right vertical frames (1) and a pair of upper and lower horizontal frames (2). In the mounting structure of (1), a gasket (5) is inserted between the pair of left and right vertical frames (1) and the pair of upper and lower horizontal frames (2) on the outdoor side and between the indoor side flange portion and the end side glass surface. The glass (3) is fixed, and the elastic member (8) is inserted into the gap between the glass edge part and the web part (11) of at least one of the left and right vertical frames (1). Glass mounting structure for sash frame for curtain wall. 2. The glass mounting structure for a sash frame for a curtain wall according to claim 1, wherein the elastic member (8) has air permeability.