JP2002317518A - Glass curtain wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a glass curtain wall, in which an extensive view and a design can be improved and the cost of which can be reduced. SOLUTION: In the glass curtain wall 1, glass mullions 10 are arranged along vertical joints for curtain wall units 30 disposed to the left and the right, and the frames 35 of the curtain wall units 30 and the glass mullions 10 are connected and constituted by brackets 20. The curtain wall units 30 are configured by incorporating glass panels 40 into the frames 35 formed by framing upper frames 31, lower frames 32 and left-right vertical frames 33 in four peripheries. Since the mullions are composed of the glass mullions 10, the field of view is not interrupted by the mullions, and the view is improved. Since the units 30 in which the glass panels 40 are held by the frames 35 are used, the glass panels 40 need not be thickened, and cost can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a glass curtain wall forming an outer wall of a building.

[0002]

2. Description of the Related Art In buildings and the like in recent years, various designs have been used for the outer wall surfaces of curtain walls. For example, a glass curtain wall is often used as an outer wall of an atrium space arranged on a lower floor of a large building. As a method of supporting the glass curtain wall, a method of supporting a glass panel by a cubic attached to a building frame is generally used. At this time, the glass curtain wall was usually made of aluminum or steel.

[0003] By the way, the purpose of using a glass curtain wall is to improve the design and to improve the visibility inside and outside the room to enhance the viewability. For this reason, it is desired that the orientation that affects the design and viewability of the glass curtain wall be as small as possible. Is required.

[0004]

However, when the span (distance) between the partitions is increased, the load applied to each partition also increases. For this reason, it is necessary to increase the expected size of the cubic to increase the support strength, and accordingly, the view in the oblique direction with respect to the wall surface of the curtain wall is obstructed by the metal cubic and is reduced, and There was a problem that the design property also deteriorated.

In a glass curtain wall, usually, through holes are formed at four corners of a glass panel, and four through holes of four glass panels adjacent to each other are bolted to a fixing member mounted vertically. A fixed DPG (dot point glazing) method is adopted.
For this reason, when the width dimension of the glass panel is increased, the load applied to the through-hole portion is also increased, and the strength of the glass panel must be increased by increasing the thickness dimension of the glass, which increases the cost. There were also problems.

An object of the present invention is to improve a view and a design,
Another object of the present invention is to provide a glass curtain wall capable of reducing costs.

[0007]

A glass curtain wall according to the present invention is constructed by incorporating a glass panel into a frame formed by forming an upper frame, a lower frame, and left and right vertical frames into a four-frame structure. A plurality of curtain wall units arranged side by side to form a wall surface of a building, glass mullion arranged along vertical joints of curtain wall units arranged left and right, a frame and a glass mullion of the curtain wall unit And a bracket for connecting the two.

Here, as the glass panel, not only a general transparent float glass panel but also various glass panels such as a heat ray reflective glass panel, a tempered glass panel, and a ceramic printed glass can be used. Various glass panels can be used as the glass mullion, but tempered glass is preferable, and tempered laminated glass is particularly preferable.

In the present invention, since the cubic is made of glass mullion, the sight is not obstructed by the cubic and the view can be improved. In particular, even when the prospective dimensions of the cubic are increased in order to increase the span of the cubic, a sufficient view can be obtained by configuring the cubic with a transparent glass panel. In addition, since the cubic is made of glass as well as the wall composed of the glass panel, the uniformity of the entire curtain wall is enhanced, and the design can be improved. Furthermore, since the glass curtain wall unit in which the glass panel is held by a rectangular frame is used as the panel constituting the wall surface, even when the width dimension is increased, the strength can be secured by the frame and the thickness of the glass panel can be secured. Since it is not necessary to make the size large, costs can be reduced.

Here, the bracket has a concave portion for holding the edge of the glass mullion, and a protective sheet made of rubber, synthetic resin, or the like is disposed on an inner surface of the concave portion in contact with the glass mullion. A through hole is formed near the edge of the glass mullion, and a protective sleeve made of rubber, synthetic resin, or the like is inserted into the through hole,
It is preferable that the bracket and the glass mullion are joined by screwing a bolt member and a nut member inserted into the protective sleeve in the through hole of the glass mullion from the groove of the bracket.

If the protective sheet is disposed on the inner surface of the bracket that is in contact with the glass mullion, the metal bracket and the glass mullion can be prevented from directly contacting each other, and the bracket can be prevented from being damaged. Further, since the bolt member and the nut member that join the glass mullion and the bracket are inserted into the protection sleeve disposed in the through hole of the glass mullion, the bolt member and the nut member come into direct contact with the glass mullion. This can also prevent the glass mullion from being damaged.

Each frame of the glass curtain wall has a frame body and a ridge member which is detachably attached to the outside of the frame body and holds the glass panel between the frame body and the glass panel. It is preferable that a liner material is disposed between the peripheral end surface of each and each frame.

Since the glass panel is configured so as to be sandwiched between the frame body and the edge material, there is no need to arrange the glass panel in the frame by the "kendon method", and the glass panel is arranged on the frame body side. After that, the glass panel can be incorporated by attaching the ridge member to the frame body. For this reason, unlike the case where the glass panel is attached by the swift method, it is not necessary to form each frame of the frame with the finding dimensions including the part swallowing the glass panel, and the finding dimension of the frame can be reduced accordingly. As a result, the area where the frame (edge material) is exposed on the outer wall surface can be reduced,
The edge material is hardly conspicuous, the glass panel can be made to have an enhanced appearance, and the design can be further improved.

Furthermore, if there is no space in the frame to swallow the glass panel, the building shakes due to an earthquake or the like,
When the glass panel moves with respect to the frame, there is no space to allow the movement, so the glass panel may come into contact with the frame.However, a liner is interposed between the frame and the edge of the glass panel. Therefore, it is possible to prevent the glass panel from abutting on the frame and being damaged.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 5 show an embodiment in which the present invention is applied to a glass curtain wall 1 for an outer wall of an atrium of a building. The glass curtain wall 1 includes a glass mullion (orient) 10 spanned between a floor and a ceiling of a building, a bracket 20 fixed to the glass mullion 10, and a curtain wall unit suspended and supported by the bracket 20. 30 are provided.

A plurality of glass mullions 10 are arranged at predetermined intervals in the left-right direction along the outer wall surface. In the present embodiment, they are arranged at intervals of about 2700 mm. Also,
The glass mullion 10 has a height of 3100 in this embodiment.
It is made of tempered laminated glass obtained by laminating two pieces of tempered glass 10A having a thickness of 300 mm, a depth (expected size) of 300 mm, and a thickness of 15 mm.

In the glass mullion 10, at a position where the bracket 20 is joined, that is, at a height position corresponding to the horizontal joint between the curtain wall units 30, as shown in FIG. Through hole 1
1 is formed. A protective sleeve 12 made of a material, such as rubber, which is softer than the glass mullion 10 and does not hurt even when it comes into contact with the glass mullion 10 is fitted into the through hole 11.

As shown in FIG. 5, the bracket 20 has a pair of fixing pieces 21A for holding the edges of the glass mullion 10.
, And a pair of joint pieces 22 projecting from the groove 21 to the left and right sides and joined to the curtain wall unit 30.

A protective sheet 23 made of rubber or the like is adhered to the inner peripheral surface of the concave groove portion 21 of the bracket 20, that is, a portion that comes into contact with the glass mullion 10, and the metal bracket 20 is directly attached to the glass. Marion 10
This protects them from contact and damage.

The bracket 20 has a tapered hole 21B formed in the fixing piece 21A of the concave groove portion 21, a protection sheet 23, a bolt member 15 and a nut screwed through the protection sleeve 12 in the through hole 11. It is fixed to the glass mullion 10 by a member 16.

On the outside of the glass mullion 10, a plurality of curtain wall units 30 arranged vertically and horizontally as walls constituting the outer wall surface of the building are arranged. The glass mullion 10 is arranged at a position corresponding to the vertical joint between the curtain wall units 30 arranged on the left and right.

The curtain wall unit 30 includes the upper frame 3
1, a lower frame 32, a left and right vertical frame 33, and a frame 35 formed by the frame, and a glass panel 40 incorporated inside the frame 35. The size of the curtain wall unit 30 may be appropriately set in the implementation, but in the present embodiment, the width dimension is 2700.
mm and height are 1300 mm and 900 mm, and the depth is about 140 mm. In addition, the glass panel 40
Is made of 10 mm thick transparent float glass.

As shown in FIGS. 2 and 3, each of the frames 31 to 33 has a frame body 36 disposed on the indoor side of the glass panel 40.
And a ridge member 37 detachably attached to the frame body 36. In each of the frames 31 and 32, the frame main body 36 has a hollow portion 36 as shown in FIG.
A, a ledge connecting portion 36B and an indoor extruded piece 36C having the same cross-sectional shape provided with an indoor side protruding piece 36C.
The frame main body 36 of the vertical frame 33 has the same cross-sectional shape as the frame main bodies 36 of the upper frame 31 and the lower frame 32 except that the indoor side projecting piece 36C is not formed.

Similarly, the edge material 37 is also a glass holding piece 37.
A, formed of an extruded aluminum member having the same cross-sectional shape provided with a connecting portion 37B. Glass holding piece 3 of this edge material 37
The apparent size of 7A (the width of the outdoor exposed portion) is 20 mm. The gap between two adjacent curtain wall units 30 is 10 mm. Therefore, in the vertical joint and the horizontal joint of each curtain wall unit 30,
The found dimension (for example, the dimension W1 in FIG. 3) from the edge to the edge of the ridge member 37 exposed outside is 50 mm (20 mm × 2 +
10 mm) and the width of the glass panel 40 (about 270).
0mm) and height dimensions (about 1300mm and 900mm), it is very slim and inconspicuous.

Here, the longitudinal end surfaces of the frames 31 to 33 are cut so as to form a 45-degree inclined surface, and these inclined surfaces are abutted with each other and formed into an L-shape in the hollow portion 36A. Each of the frames 31 to 33 is assembled in a rectangular frame shape by inserting the corner block and bolting it.

On the outer peripheral surface of each frame body 36, a rain barrier seal 38 made of synthetic rubber such as EPDM (ethylene propylene diene methylene) or SR sponge is provided.
A wind barrier seal 39 is attached continuously over the entire circumference of the frame 35. Therefore, when the curtain wall units 30 are arranged vertically and horizontally, the rain barrier seals 38 and the wind barrier seals 39 are in close contact with each other, and the rain barrier and the wind barrier are doubled in the indoor and outdoor directions. It is configured to form a seal.

As shown in FIG. 4, a hole 36D is formed in the frame body 36 of the lower frame 32 through a hollow portion 36A to communicate between the outside and the inside of the rain barrier seal 38. . Thereby, the space between the rain barrier seal 38 and the wind barrier seal 39 is made equal in pressure to the space outside the room, and the blowing of rainwater due to a pressure difference is prevented.

A backup material 41 is locked and fixed to the outdoor surface of the frame body 36.
The glass panel 40 is arranged so as to abut the glass panel 40. Further, a plurality of thin liner-shaped liners 43 are arranged at predetermined intervals between the frame body 36 and the outer peripheral surface of the glass panel 40, and the glass panel 40 is positioned in the direction of the outer wall surface (vertical direction and horizontal direction). ) Have been kept from moving.

An edge member 37 is detachably engaged with the frame body 36. A glazing gasket 44 is fitted between the inner surface of the ridge member 37 and the outdoor surface of the glass panel 40 to improve the waterproof performance of the gap between the ridge member 37 and the glass panel 40, and to improve the waterproof performance. Unless the jing gasket 44 is removed and the ridge member 37 is slid to the indoor side, the ridge member 37 is configured not to come off the frame body 36. The backup material 41
The portion surrounded by the frame body 36 and the glass panel 40 is filled with a sealing material 45 to further improve the waterproof performance.

As shown in FIGS. 2 and 4, joint pieces 46 and 47 made of extruded aluminum are fixed to the upper frame 31 and the lower frame 32 of the curtain wall unit 30, respectively. By fitting the joint pieces 46 and 47 to each curtain wall unit 30, the lower frame 32 is regulated so as not to move in the indoor and outdoor directions with respect to the upper frame 31.

Each of the curtain wall units 30 configured as described above has its upper frame 31 suspended and supported by being bolted to the bracket 20. That is, as shown in FIGS.
It is arranged between the indoor side projecting pieces 36C of the upper frame 31 and the lower frame 32, and is fixed by screwing the bolt 25 to the fixing block 24 inserted into the upper frame 31.

Thus, in each curtain wall unit 30, the upper frame 31 is suspended and supported by being connected to the glass mullion 10 via the bracket 20, and the lower frame 32
Is attached to the upper frame 31 below the joint piece 46,
The glass curtain wall 1 is configured so as not to move in the indoor and outdoor directions by being locked via the 47.

An inner wall panel 50 is arranged on the indoor side of the curtain wall unit 30, as shown in FIGS. The inner wall panel 50 is configured by incorporating a glass panel (transparent float glass) 52 into a frame 51 joined in a square frame shape, and is configured to be capable of being opened and closed by sliding in a direction along a wall surface. If the inner wall panel 50 is closed, a double sash (the curtain wall unit 30 and the inner wall panel 50) is provided on the outer wall portion inside and outside the room, so that the heat insulating performance can be improved, and the efficiency of indoor heating and cooling can be improved. Can be improved.

The curtain wall 1 of this embodiment is constructed by a unit construction method. That is, the curtain wall unit 30 is manufactured in advance in a factory or the like and transported to the site. And the glass mullion 10
Is fixed, the bracket 20 is fixed to the glass mullion 10, the upper frame 31 of the curtain wall unit 30 is fixed to the bracket 20 with bolts 25, and the joint pieces 46 and 47 are fitted and fixed. Thus, the glass curtain wall 1 is completed.

According to the present embodiment, the following effects can be obtained. (1) Since glass mullion 10 is used as a cubicle,
As in the case of using a metal cubicle, the view is not obstructed by the cubicle, and the view can be improved.
For this reason, since the view does not decrease even if the expected size of the glass mullion 10 is increased, the span between the cubicles can be increased to reduce the number of cubicles, and the view in which the transparent glass panel 40 is emphasized. The curtain wall 1 excellent in the property and the design can be constituted. Furthermore, like the wall surface constituted by the glass panel 40, since the cubic is also made of glass, the sense of unity of the entire curtain wall 1 is increased,
The design can be further improved.

(2) Since the glass curtain wall unit 30 in which the glass panel 40 is held by the frame 35 is used as the panel constituting the wall surface, even if the width of the unit 30 is increased, the strength is secured by the frame 35. Since the thickness of the glass panel 40 does not need to be so large, the cost can be reduced. In addition, since the width dimension of the unit 30 can be increased, the arrangement interval of the glass mullion 10 can be increased, and the number of the glass mullion 10 can be reduced, so that the glass mullion 10 can be made inconspicuous and the design can be further improved.

(3) Further, since the glass mullion 10 is arranged in the vertical joint between the glass curtain wall units 30, the glass mullion 10 is less noticeable from the outdoor side, and the design can be further improved. it can.

(4) Glass curtain wall unit 30
Is configured to hold the glass panel 40 by the edge material 37, and the liner 43 is disposed between the frame 35 and the glass panel 40, so that the space in which the glass panel 40 moves can be eliminated. For this reason,
Since the found width of the ridge member 37 can be reduced, and the portion where the ridge member 37 is exposed to the outside can be made thinner and slim, the glass panel 40 can be formed with an enhanced appearance with enhanced design.

(5) Since the glass panel 40 is supported by sandwiching the glass panel 40 from the inside and outside of the room with the frame body 36 and the edge material 37, a through hole is formed in the glass panel 40 as in the conventional DPG method. There is no need to form. For this reason, the processing of the glass panel 40 becomes unnecessary, and the cost can be reduced. In addition, a wall made of a material that cannot form a through hole can be used, and the limitation of the material that can be used as the wall is reduced. Walls can be supported.

(6) Since the protection sheet 23 is stuck to the groove 21 of the bracket 20 and the bolt member 15 and the nut member 16 are inserted into the protection sleeve 12 and screwed together, the bracket 20, the bolt member 15, the nut Member 16
Can be prevented from directly contacting the glass mullion 10,
The glass mullion 10 can be prevented from being damaged. (7) Since the frame body 36 and the ridge member 37 of the frame 35 are formed of extruded aluminum members having substantially the same cross-sectional shape, the number of parts can be reduced, the cost can be reduced, and the appearance of the wall surface can be shared. The design can be improved.

The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the horizontally long glass curtain wall unit 30 is used, but a vertically long one or a substantially square one may be used. In the above-described embodiment, the curtain wall unit 30 in which the liner 43 is disposed is used.
3 are not arranged, and the end face of the glass panel 40 and the frames 31 to 33
To provide a gap between the glass panels 40
May be configured not to collide with the frames 31 to 33.

The glass mullion 10 is not limited to one using the tempered laminated glass as in the above embodiment,
It is also possible to use one made of a piece of tempered glass. In short, the glass mullion 10 only needs to be made of glass that can obtain necessary strength as a cubic. However, the use of tempered laminated glass has an advantage that the cost and strength are well balanced.

The joining structure between the glass mullion 10 and the bracket 20 is not limited to the above embodiment. For example, the bracket 20 may be joined with an adhesive or the like without forming the through hole 11 in the glass mullion 10, or the glass mullion 1
The bracket 10 may be fitted by providing a recess or the like at the edge of the zero. In short, any structure can be used as long as the bracket 20 can be fixed to the glass mullion 10.

In addition, the shape of the bracket 20, the joint structure between the bracket 20 and the curtain wall unit 30,
The joint structure between the curtain wall units 30 and the like may be appropriately set in implementation. In short, the glass curtain wall 1 includes a curtain wall unit 30,
What is necessary is just to be provided with the glass mullion 10 and the bracket 20, and the structure of each element should just be set suitably.

[0045]

According to the glass curtain wall of the present invention, the view and the design can be improved, and the cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a curtain wall according to an embodiment of the present invention.

FIG. 2 is a longitudinal sectional view showing the curtain wall of the embodiment.

FIG. 3 is a cross-sectional view showing the curtain wall of the embodiment.

FIG. 4 is an enlarged vertical sectional view showing a horizontal joint portion of the curtain wall of the embodiment.

FIG. 5 is an exploded perspective view showing the bracket and the glass mullion of the embodiment.

[Explanation of symbols]

1: glass curtain wall, 10: glass mullion,
10A: Tempered glass, 11: Through hole, 12: Protective sleeve, 15: Bolt member, 16: Nut member, 20: Bracket, 21: Groove, 21A: Fixing piece, 21B: Hole,
22: joining piece, 23: protective sheet, 24: fixing block, 25: bolt, 30: curtain wall unit,
31 ... upper frame, 32 ... lower frame, 33 ... vertical frame, 35 ... frame, 36 ... frame body, 36A ... hollow part, 36C ... indoor projecting piece, 36D ... hole, 37 ... edge material, 37A ... glass holding piece 38, rain barrier seal, 39, wind barrier seal, 40, glass panel, 41, backup material, 43, liner, 44, glazing gasket,
45 ... sealing material, 46, 47 ... joint pieces,
50: inner wall panel, 51: frame.

 ────────────────────────────────────────────────── ─── Continued on the front page (72) Inventor Hideyuki Tajima 3-22-15 Tsudanuma, Narashino-shi, Chiba F-term (reference) 2E002 NA04 NB02 NC03 PA01 QB07 QC03 SA01 SA02 UA01 UA02 UB01 UB04 UB05 UB15 UB16 XA08 XA09

Claims (3)

[Claims] 1. A frame formed by incorporating an upper frame, a lower frame, and left and right vertical frames into a four-frame structure and incorporating glass panels therein, and arranged side by side vertically and horizontally to form a wall surface of the building. A plurality of curtain wall units, a glass mullion arranged along vertical joints of the curtain wall units arranged on the left and right, and a bracket configured to connect a frame of the curtain wall unit and a glass mullion. curtain wall. 2. The bracket includes a concave groove for holding an edge of the glass mullion, and a protection sheet is disposed on an inner surface of the concave groove in contact with the glass mullion. A through hole is formed,
A protective sleeve is inserted into the through hole, and the bracket and the glass mullion are joined by screwing a bolt member and a nut member inserted into the protective sleeve in the through hole of the glass mullion from the groove of the bracket. The glass curtain wall according to claim 1, wherein the glass curtain wall is formed. 3. Each frame of the glass curtain wall,
A frame body and a ridge member that is detachably attached to the outside of the frame body and sandwiches the glass panel between the frame body, and a liner material is provided between the peripheral end surface of the glass panel and each frame. The glass curtain wall according to claim 1 or 2, wherein the glass curtain wall is arranged.