JP2000337035A - Glass panel fall prevention device - Google Patents

Abstract

(57) [Problem] To prevent the glass panels (1, 1) from falling off even if the adhesive force of the adhesive is lost, with a structure in which the glass panels (1, 1) are exposed over the entire surface to the outside. I do. SOLUTION: A protruding wall portion 7 provided on one coupling frame 6a.
Then, the holding bracket 8 is locked. The rear surface of the holding bracket 8 is opposed to the front surfaces of the protrusions 9 formed at the corners of the glass panels 1. When the adhesive force of the adhesive is lost, the holding bracket 8 is attached to the protrusions 9, 9.
And prevents the glass panels 1 and 1 from falling off.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in an apparatus for supporting and fixing a glass panel in a structure called SSG in which most of the outer wall surface of a building is covered with a glass panel.

[0002]

2. Description of the Related Art In order to improve the appearance of a building, a structure called SSG, which does not surround a glass panel covering an outer wall surface of the building with a frame material, is widely used. In the case of such a structure, a bonding frame is bonded and fixed to an edge of the rear surface of the glass panel, and the bonding frame is bonded to a metal frame, and the glass panel is displaced in a direction away from the frame. Is prevented from doing so. The bonding between the glass panel and the connection frame is performed using an adhesive having sufficient weather resistance and durability, but is different from mechanical connection using bolts or the like. It is necessary to provide a structure for preventing the glass panel from falling off even when the adhesive strength is lost. Conventionally, this structure has been configured by connecting a metal fitting, a part of which is engaged with an edge of the glass panel, to the frame.

[0003]

In the case of the conventional structure as described above, metal fittings for preventing the glass panel from falling off are conspicuous, and the appearance of the outer wall surface of the building is deteriorated, or the design of this outer wall surface is deteriorated. Caused the degree of freedom to be low. The device for preventing a glass panel from falling off according to the present invention was invented in view of such circumstances.

[0004]

According to the present invention, there is provided an apparatus for preventing a glass panel from falling out of a glass panel, the edge of which is bonded and fixed to the front surface of a frame through a bonding frame which is bonded and fixed to an edge of a rear surface. This is to prevent the glass panel from falling off even when the adhesive strength to the connection frame is lost. Such a fall prevention device for a glass panel of the present invention is as follows.
The connecting frame extends from the edge to the opposite side of the skeleton, and the front end portion is engaged with a protruding wall portion protruding forward from the front surface of the glass panel and a portion near the front end of the protruding wall portion. A holding bracket; and a projection formed on an edge of the glass panel. The rear surface of the holding bracket is opposed to the front surface of the protruding portion to prevent the glass panel from being displaced away from the frame.

[0005] Further, preferably, the protruding wall portion protrudes forward of a front surface of each of the glass panels through a portion between the glass panels horizontally adjacent to each other. or,
The holding bracket is formed by engaging a part of a notch formed at an upper end portion of the protruding wall portion with an opening at an upper end edge of the protruding wall portion, whereby the glass panel adjacent to the horizontal direction is formed. Between the edges. or,
A sealing material is filled between the edges of the glass panels adjacent in the horizontal direction. Further, the width of the holding bracket is equal to the width of the sealing material.

[0006]

According to the apparatus for preventing a glass panel from falling off according to the present invention constructed as described above, the holding bracket constituting a structure for preventing the glass panel from falling off should the adhesive force of the adhesive be lost. Can be made inconspicuous from outside. For this reason, the appearance of the building outer wall surface can be improved, or the degree of freedom in designing the outer wall surface can be improved.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an outer wall of a building in which a device for preventing a glass panel from falling off according to the present invention is incorporated. The outer walls are mostly glass panels 1, 1
The joints 2 between adjacent edges of the glass panels 1 and 1 are filled with sealing materials 3 and 3 (see FIGS. 2 and 3 described below). In any case, the periphery of each of the glass panels 1 and 1 is exposed to the outside side surface except for a part. In particular, the left and right side edges are exposed to the outdoor side surface over substantially the entire length in the vertical direction. In other words, the left and right side edges of the outdoor side surface of each of the glass panels 1 and 1 are not covered by a member such as a vertical frame. The falling-off prevention device of the present invention has a structure in which the peripheral portion is not supported by the frame material, and prevents the glass panels 1, 1 from falling off.

An embodiment of such an apparatus for preventing a glass panel from falling will be described with reference to FIGS. Each of the glass panels 1 and 1 is connected and fixed to the front surface of a skeleton 4 which is a steel frame serving as a strength member of a curtain wall forming the outer wall surface of the building via an adhesive 5 and connection frames 6a and 6b. The glass panel falling-off preventing device of the present invention can prevent the glass panels 1, 1 supported and fixed to the frame 4 from falling off even if the adhesive force of the adhesive 5 to the coupling frames 6a, 6b is lost. It is for preventing that. Such a device for preventing a glass panel from falling off includes a holding bracket 8 which is locked to a portion of the protruding wall portion 7 provided on the coupling frame 6a near the front end, by using the glass panel 1,
1 is formed by opposing the front surfaces of the protruding portions 9 formed at the upper and lower ends of the right and left edges.

[0009] In order to have such a configuration, the protruding wall portion 7 is
Through the joints 2 between the horizontally adjacent glass panels 1, 1, they project forward (outdoor side) from front surfaces (outdoor side surfaces) of the respective glass panels 1, 1. At the upper end of such a protruding wall 7, a locking notch 10 is formed which opens at the upper edge of the protruding wall 7. The retaining bracket 8 is partially spanned by the locking notch 10 so as to bridge between the edges of the glass panels 1 and 1 adjacent in the horizontal direction. The interval between the edges of the glass panels 1 and 1 adjacent in the horizontal direction (the width of the joint 2) is narrow at the portion corresponding to each of the projections 9 and 9 and wide at other portions. However, even in the portions corresponding to these protruding portions 9, a gap through which the protruding wall portion 7 can pass exists between the edges of the horizontally adjacent glass panels 1. ing.

At the upper end of the protruding wall 7, as shown in FIG. 6, a notch 1 having a slightly narrower upper end opening.
0 is formed in a state of opening at the upper end edge of the protruding wall portion 7. On the other hand, the holding bracket 8 is formed by cutting an extruded material made of an aluminum alloy into a predetermined size and performing trimming to remove a part thereof. This extruded material has a pair of ridges 12, 12 formed in the center of one side of the flat plate portion 11, and the distance D12 between the ridges 12, ₁₂ is
Equal to or slightly larger than the thickness dimension T ₇ of the portion except for the thick portion 13 of the tip of the protruding wall portion 7, and smaller than the thickness T ₁₃ of the thick portion 13 (T _13> D ₁₂ ≧ T ₇ ). At the center of such an extruded material, the two ridges 1
The upper half and the lower end of the portion sandwiched between 2 and 12 are removed by trimming to form an upper half cutout 14 and a lower cutout 15, respectively. The length (height) L ₁₆ of the connecting portion 16 remaining between the notches 14, 15 is the depth of the wide portion 17, excluding the upper end, which is deeper in the locking notch 10. Length (height) L ₁₇
Or slightly smaller (L ₁₆ ≦ L ₁₇ ).

The width W ₁₀ of the locking notch 10 is such that not only the holding bracket 8 can be locked freely but also the projections 9, 9 formed at the four corners of the glass panels 1, 1. The size is set so as to prevent interference between the leading edge and the side surface of the protruding wall portion 7. That is, regardless of the mounting error of the connecting frame 6a having the protruding wall portion 7 with respect to the glass panel 1, or the positional shift between the glass panel 1 and the connecting frame 6a due to an earthquake or the like, each of the above-mentioned protruding portions 9, 9 is formed. The leading edge does not hit the protruding wall 7. As described above, the locking notch 1 is formed at the upper end of the protruding wall 7 from the side for preventing interference between the side surface of the protruding wall 7 and each of the protruding portions 9.
It is preferable to form notches not only at 0 but also at the lower end of the protruding wall 7.

In any case, the lower half of the holding bracket 8 as described above is locked in the locking notch 10,
The front faces of four protruding portions 9, 9 formed at the corners of four glass panels 1, 1 adjacent vertically and horizontally are suppressed by the holding bracket 8. That is, the connecting portion 16 formed in the lower portion of the center portion in the width direction of the holding bracket 8
Is locked at the front end (lower left end in FIG. 6) of the wide portion 17 having a wider width excluding the upper end at the back of the locking notch 10. In this state, the four projecting portions 9 are located on the rear surface side of the holding bracket 8. Further, a gap between the front surface of each of the projecting portions 9 and the rear surface of the flat plate portion 11 constituting the holding bracket 8 is closed by a sealing material 18. Further, another sealing material 3 is filled between the edges of the glass panels 1 and 1 which are horizontally adjacent to each other. The other sealing material 3 can be visually observed from outside, but the part of the holding bracket 8 is covered with the holding bracket 8. Therefore, the width of the holding bracket 8 is made equal to the width of the another sealing material 3 so that the installation portion of the holding bracket 8 is provided with continuity so as not to be visually unnatural. More preferably, the color tone of the another sealing material 3 and the color tone of the holding bracket 8 are the same or similar.

According to the glass panel falling-off preventing device constructed as described above, the adhesive force of the adhesives 5, 5 connecting the glass panels 1, 1 and the connecting frames 6a, 6b is large. Even in the case of one loss, the glass panels 1, 1 can be prevented from falling off. That is, each of these glass panels 1, 1
The protrusions 9 are provided at the four corners, respectively. The outer surfaces of the protrusions 9 and 9 are prevented from being displaced to the outdoor side by engagement with the protrusion wall 7. , Facing the inner surface of the holding bracket 8. Therefore, even when the adhesive strength of the adhesives 5, 5 is lost, the glass panels 1, 1 are not displaced to the outside and fall off. Therefore, it is possible to prevent the glass panel 1 supported by the adhesive 5 from falling before the repair of the adhesive 5 having lost the adhesive force is finished. In addition, in the case of the structure shown in the drawing, the holding bracket 8 can be made inconspicuous from the outside, so that the appearance of the outer wall surface of the building can be improved, or the degree of freedom in designing the outer wall surface can be improved. Can be.

The structure and operation of the device for preventing the glass panel from falling, which is the gist of the present invention, is as described above. Next, although not directly related to the present invention, the present invention is carried out simultaneously with the present invention.
The glass panel supporting and fixing device shown in the drawings and the supporting structure of the upper and lower edges of the glass panels 1 and 1 will be described.

First, an example of a structure for widely exposing each of the glass panels 1 and 1 to the outdoor side surface will be described with reference to FIGS.
This will be described with reference to FIG. In this structure, the edge of each of the glass panels 1 and 1 is supported and fixed to the front surface (outdoor side surface) of the frame 4. Note that, as described above, the skeleton 4 is a steel frame serving as a strength member of a curtain wall forming the outer wall surface of the building.

In the case of the illustrated glass panel supporting and fixing apparatus, a stud 19 is fixed to the front surface of the frame 4 by welding so as to protrude from the front surface. At least four such studs 19 are provided for each glass panel. However, the studs 19 arranged between the edges of the horizontally adjacent glass panels 1 are 1
The book supports both glass panels 1 and 1. Therefore, the number of studs fixed to the frame 4 of one curtain wall is not necessarily four times the number of glass panels supported by the curtain wall. Such a stud 19
Are screwed with plate-shaped locking pieces 20, respectively. As shown in FIG. 13, the locking piece 20 includes a disk-shaped main part 21 and a convex part 22 provided at the center of one side of the main part 21. A screw hole 23 for screwing the stud 19 is provided so as to penetrate a central portion of the distal end surface of the convex portion 22 and a central portion of the other surface of the main portion 21.

Further, in the rear surface (indoor side surface) of each of the above-mentioned glass panels 1, 1, the pair of connecting frames 6a, 6b are provided with the adhesives 5, 5, such as structural silicon, on both right and left edges. It is bonded and fixed. Each of these connection frames 6a, 6b
It is formed by extruding an aluminum alloy, and has locking grooves 24, 24 each having an open end on the glass panel 1, 1. Then, in order to provide a design accent between the horizontally adjacent glass panels 1 and 1 and to constitute the above-described glass panel falling-off prevention device of the present invention, one of the glass panels 1 (right side in FIG. 10) is provided. Connection frame 6a
, The protruding wall portion 7 is formed. This protruding wall 7
Is continuous from the main body portion of the coupling frame 6a in an L-shaped cross section, and from the joint 2 portion between the edges of the horizontally adjacent glass panels 1, 1, each of the glass panels 1, 1 It protrudes outside from the front. The sealing material 3, 3 is filled between the left and right side surfaces of the protruding wall portion 7 and the edges of the glass panels 1, 1 to make the edges of the glass panels 1, 1 watertight. I am trying to keep it.

The glass panels 1, 1 in which the above-described connecting frames 6a, 6b are adhered and fixed to the right and left edges of the rear surface, respectively.
In order to support the frame 4 on the frame 4,
As shown in FIGS. 10 to 12, each of the locking pieces 2 is positioned at two positions vertically separated from each other in each of the locking grooves 24, 24 in FIG.
0 is engaged. That is, when one glass panel 1 is viewed, two upper and lower positions of the locking groove 24 of the one coupling frame 6a and two upper and lower positions of the locking groove 24 of the other coupling frame 9b, The horizontal ends of the locking pieces 20 are engaged without play. In this state, the glass panel 1 is prevented from being displaced away from the frame 4. That is, the distance between the locking pieces 20 and the frame 4 does not change unless the locking pieces 20 rotate, and the locking pieces 20 and the coupling frames 6a and 6b are engaged without play. Then, each of the locking pieces 2
0 does not rotate carelessly. Therefore, the distance between each of the glass panels 1 and the skeleton 4 is constant in a state where each of the locking pieces 20 and the locking groove 24 are engaged. still,
A cutout 25 is formed in a part of the coupling frame 6a where the tip of the stud 19 is opposed to prevent interference between the coupling frame 6a and the stud 19.

Since the above-mentioned glass panel supporting and fixing device is constructed as described above, each of the glass panels 1 and 2 has a simple structure.
1 is supported on a frame 4 and each of these glass panels 1,
The distance between 1 and the frame 4 can be shortened. In addition, by rotating the locking pieces 20, the surface direction of the glass panel 1 can be adjusted. That is, as described above, by rotating the locking pieces 20 with respect to the studs 19, the distance between the locking pieces 20 and the frame 4 can be adjusted. And the glass panel 1 whose surface direction should be adjusted
By adjusting the distance between the four locking pieces 20 for supporting the frame 4 and the frame 4, the surface direction of the glass panel 1 can be adjusted. The adjustment of the plane direction is necessary to prevent the scenery reflected on the outer wall surface of the building from being discontinuous between the adjacent glass panels 1 and 1.

Further, in the illustrated example, the length of each of the studs 19 is increased by devising the shape of each of the locking pieces 20, or the thickness of each of the coupling frames 6a and 6b ( The size of the glass panel 1 in the surface direction can be adjusted over a wide range without increasing the size (in the indoor and outdoor directions). That is, since the thickness of the central portion of each of the locking pieces 20 is made larger than the thickness of the peripheral portion, the length of each of the studs 19 is increased, or
It is possible to adjust the surface direction of the glass panel 1 in a wide range without increasing the thickness of the glass panels a and 6b. For example,
In order to increase the distance between the glass panel 1 and the frame 4, as shown in FIG. 14A, the convex portion 22 formed at the center of each locking piece 20 is directed toward the frame 4. On the other hand, in order to shorten the distance between the glass panel 1 and the skeleton 4, as shown in FIG. And turn to the other side. Therefore, the notch 25 is formed in such a size that the interference with the projection 22 can be prevented.

Next, the support structure for the upper and lower edges of the glass panels 1 and 1 will be described with reference to FIGS. FIGS. 2 to 4 used in the description of the above-described drop prevention device show the structure of the portion A in FIG. In the portion A, a glass liner 26 constituted by a simple synthetic resin or a combination of a metal and an elastomer such as rubber is sandwiched between the edges of the vertically adjacent glass panels 1 and 1. The two glass panels 1 are connected to each other.
Therefore, in the part A, not only the left and right edges but also the upper and lower edges of each of the glass panels are exposed to the outside without being covered by the frame material. On the other hand, the portion B in FIG. 1 is configured as shown in FIGS.

In the portion B, a lower frame 27 made of an extruded aluminum alloy material is fixed to the lower edge of the upper glass panel 1 by engaging with a locking projection wall 28 and bonding with an adhesive 5a. are doing. A horizontal plate portion 29 formed on the indoor side surface of the lower frame 27 so as to protrude toward the indoor side.
Are cut off at the end in the horizontal direction to prevent interference between the horizontal plate portion 29 and the frame 4. Further, a support bracket 30 as shown in FIG. 19 is fixed to the front surface of the frame 4, and the end of the lower frames 27, 27 fixed to the lower end edges of the adjacent glass panels 1, 1 by the support bracket 30. We support the department.

Such a support bracket 30 is provided with a support plate 3 which can be engaged with an engagement groove 31 opened on the lower surface of the lower frame 27.
The rear ends of a pair of leg pieces 33, 33 are welded and fixed to the rear surface of the body 2. The base end of each of the leg pieces 33, 33 is attached to the skeleton body with the support plate 32 positioned horizontally. 4 is fixed by welding to the front surface. In order to engage the support plate 32 of such a support bracket 30 with the engagement groove 31 of each of the lower frames 27, the end portions of the inner side walls 34, 34 of the engagement groove 31 are provided with the respective leg pieces 32, A notch 35 is formed so as to be able to pass through. Accordingly, the weight of each of the glass panels 1, 1 is
It is supported by the frame 4 via the lower frames 27, 27 and the support bracket 30.

On the other hand, the glass panels 1 and 1
An upper frame 36 made of an extruded material of an aluminum alloy is fixedly connected to the upper end edge of the upper frame by engaging with a locking hanging wall 37 and bonding with an adhesive 5b. Then, the engaging protrusion 38 formed on the upper surface of the upper frame 36 is inserted into the engaging groove 31 of the lower frame 27, and the upper edge of each of the glass panels 1, 1 on which the upper frame 36 is fixed is fixed. , And prevents displacement to the outdoor side. In addition, the end of the engaging projection 38 is cut off,
Interference between the engaging projection 38 and the support plate 32 is prevented.

[0025]

The glass panel falling-off prevention device of the present invention is constructed and operates as described above. Therefore, the practical use of a building in which most of the outer wall surface is covered with the glass panel is described.
This can be achieved while ensuring safety.

[Brief description of the drawings]

FIG. 1 is a front view of an outer wall surface of a building to which a device for preventing a glass panel from being dropped according to the present invention is assembled as viewed from the outdoor side.

FIG. 2 is an enlarged view of a portion A in FIG.

FIG. 3 is a sectional view taken along a line II in FIG. 2;

FIG. 4 is a cross-sectional view taken along a roll of FIG. 3;

FIG. 5 is a perspective view of a corner of a glass panel.

FIG. 6 is a perspective view of an upper end portion of a coupling frame having a protruding wall portion.

FIG. 7 is a perspective view showing the holding bracket viewed from an outdoor side.

FIG. 8 is a front view of the same.

FIG. 9 is a sectional view taken along the line C-C of FIG. 8;

FIG. 10 is an enlarged cross-sectional view of FIG. 1;

11 is a partial front view as viewed from below in FIG. 10;

FIG. 12 is a cross-sectional view of the hoe of FIG. 10;

FIG. 13 is a perspective view of a locking piece.

FIG. 14 is a partial cross-sectional view showing two examples of the use state of the locking pieces.

FIG. 15 is an enlarged view of a portion B in FIG. 1;

FIG. 16 is a sectional view taken along the line F-F in FIG. 15;

FIG. 17 is a sectional view of the tote shown in FIG. 16;

FIG. 18 is a sectional view of the same teak.

FIG. 19 is a perspective view showing the bearing bracket as viewed from the indoor side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Glass panel 2 Joint 3 Sealing material 4 Building material 5, 5a, 5b Adhesive 6a, 6b Combined body 7 Projecting wall part 8 Suppression bracket 9 Projecting part 10 Locking notch 11 Flat plate part 12 Protrusion 13 Thick part 14 Upper half Side cutout part 15 Lower half side cutout part 16 Connecting part 17 Wide part 18 Seal material 19 Stud 20 Locking piece 21 Main part 22 Convex part 23 Screw hole 24 Locking groove 25 Notch 26 Glass liner 27 Lower frame 28 Stop projection wall 29 Horizontal plate portion 30 Support bracket 31 Engagement groove 32 Support plate 33 Leg piece 34 Inner side wall 35 Notch 36 Upper frame 37 Engagement hanging wall 38 Engagement projection

Continued on the front page (72) Inventor Hidenori Miyake 135 Nakamaruko, Nakahara-ku, Kawasaki-shi, Kanagawa F-term in Fujisashi Co., Ltd. (reference) 2E016 AA05 BA07 BA08 CA01 CB01 CC04 DA07 DB02 DC01 DC05 DD01 DE04 2E035 AA01 BA01 CB03 DA07 DB03 DB04 DC01

Claims (2)

[Claims] 1. A glass panel whose edge is fixedly connected to a front surface of a frame through a connecting frame bonded and fixed to an edge of a rear surface of the frame, even if the adhesive force to the connecting frame is lost. A device for preventing falling off of a glass panel for preventing the glass panel from falling off, wherein the projecting wall extends from the edge of the coupling frame to the opposite side to the skeleton, and has a tip end projecting forward from a front surface of the glass panel. Part, a holding bracket locked to a portion of the protruding wall portion near the front end, and a protruding portion formed at the edge of the glass panel. The rear surface of the holding bracket is opposed to the front surface of the protruding portion. An apparatus for preventing a glass panel from falling off, which prevents the glass panel from being displaced away from the frame. 2. The projecting wall portion projects forward from the front surface of each of the glass panels through a portion between the horizontally adjacent glass panels, and the holding bracket is provided at the upper end of the projecting wall portion. By engaging a part of the notch formed so as to be open at the upper end edge of the protruding wall portion, it extends between the edges of the glass panels adjacent in the horizontal direction. The glass panel according to claim 1, wherein a sealing material is filled between the edges of the glass panels adjacent in the horizontal direction, and the width of the holding bracket is equal to the width of the sealing material. Prevention device.