JPH0424073Y2 - - Google Patents

Description

[Detailed description of the invention] (Field of industrial application) The present invention relates to a double-glazed soundproof window in which a sound-absorbing material is provided around the window frame, and also relates to a double-glazed soundproof window that prevents heat transfer between the inner and outer frames. It is something.

(Conventional technology and problems) Recently, urban noise has become more and more intense, the demand for quieter indoor spaces has increased, and as modern glass-walled buildings facing the street have become more common, double walls for noise isolation have been developed. Many different ideas for glass soundproof windows have been announced.

An example of conventional double-glazed soundproof windows is
No. 57-17384 has Figure 1, that is, Figure 5 of the specification of the present application, and the problems with the invention are as follows.

A Regarding the combination of two members made of different materials The window frame 1 described in the above prior art is composed of an inner member 2 made of synthetic resin that is attached to the indoor side, and an outer member 3 that is an extruded shape made of light metal that is attached to the outdoor side. A connecting portion 12 is provided on the outer circumference of the outer member 2 on the outdoor side, and a connecting portion 13 that fits with the connecting portion 12 of the inner member 2 is provided on the indoor side of the outer member 3, and the connecting portion 12 of the inner member 2 and the outer member 3 are provided. A structure is shown in which an integral window frame 1 is constructed by fitting and fixing the connecting portions 13 of the 2 and 3, and the inner and outer members 2 and 3 are further tightened with screws. It is also complicated and difficult to manufacture and assemble.

The biggest reason for the complexity of the structure is the clumsy method of joining two members made of different materials. Although they are connected by fitting, this alone is not sufficient and a screw-fastening structure is used, which is complicated and uneconomical in that two means are required for almost the same purpose.

B Regarding the glass fixing method In this prior art, the inner and outer protrusions 4 and 5 are protruded from the fitting portions of the inner and outer members 2 and 3 on the inner circumferential side, and the tight material T and Glass plates G and G' are brought into close contact via T', glass holders 9 and 9' are attached to the inner and outer members 2 and 3 on the outside of both glass plates G and G', and gaskets P and 9' are attached to the glass holders 9 and 9'. P′ is inserted, and the method of fixing the glass is troublesome.

That is, it is not efficient to attach the glass holder to each glass from the inside of the window frame in the vertical and horizontal directions.

C Regarding soundproofing In this prior art, the inner and outer protrusions 4 and 5 are provided protruding from the fitting part of the inner and outer members 2 and 3 of the window frame 1 on the inner circumferential side, and the lid that is engaged with the inner and outer protrusions 4 and 5 is provided. A storage section 7 for a desiccant 8 is provided by the plate 6, and a glass plate G,
The air sealed between G′ is extracted outside from a suitable location on the window frame to create a near-vacuum condition, but although it is said to be soundproof, the soundproofing effect is insufficient.

In order to effectively absorb sound through double glazing, it is necessary to reduce reverberations in the space surrounded by double glazing, but to do so, it is necessary to prevent sound reflection from the inner surface of the frame. No measures have been taken.

Furthermore, in order to effectively achieve the soundproofing provided by double glazing, it is necessary to make the thickness of the two glasses different so that they do not resonate, but there is no consideration given to this.

D. Expansion of double-glazed soundproof windows The use of double-glazed windows has recently expanded to include configuring the entire large wall surface in this way, rather than a set-up window that only covers a limited space. The technology does not give any consideration to continuous windows vertically or horizontally.

(Means for solving the problem) In view of the above, the present invention uses a frame made of a single material of light alloy, has a simple structure and can be easily expanded, and has a light metal frame with an approximately I-shaped cross section. , or cross-section abbreviation I
A protrusion is provided in the vicinity of the web extension part of the front and back flange parts of the light metal frame, which is made by fitting and connecting a part of the web with a material that has heat insulation properties and rigidity as a structural material. A glass whose edge is covered with a gasket having a substantially U-shaped cross section is attached to the corner formed by the protrusion and the flange edge, and both the protrusion and the U-shaped gasket are held together by a single piece of presser through the gasket. The glass is fixed by pressing with a plate and fixing the holding plate to the protrusion with screws, etc., while the I-shaped or U-shaped recess is filled with a sound absorbing material and its surface is covered with a perforated plate. This is a summary of double glazed soundproof windows.

(About the effects) The effects of the present invention will be described below in comparison with each of the problems of the prior art.

A. Regarding the connection of two members made of different materials The structure of the prior art is too complicated, whereas the present invention is based on members with a simple I-shaped structure, and has an extremely simple structure and is economical. It has become a thing. As for heat insulation, when manufacturing the I-shaped member, a heat-insulating member is fitted into the web and connected, and after the connection, the structure is simple so that it can be handled as a single I-shaped structural member.

B. About the glass fixing method When fixing the glass, the structure is such that the glass can be stably placed at the corner of the approximately I-shaped cross section, which is made up of the protrusion at the top of the flange and the flange edge. The structure is such that the holding plate is screwed in from the front of the glass, making it easy to work with.

C. About soundproofing The cavity surrounded by the I-shaped flange and web is filled with sound-absorbing material on both sides or one side and then covered with a perforated plate, which prevents echoes inside the double-glazed glass and is extremely effective in soundproofing. are doing.
Attached Figure 4 shows the experimental results on this point. The dotted line in Figure 4 shows the noise attenuation, or transmission loss, of a double-glazed soundproof window without sound-absorbing material, and the solid line in the same figure shows the perforated panel with sound-absorbing material filled inside the frame on all four sides. The figure shows the transmission loss when covered with Comparing these two curves, we found that by filling the recessed part inside the frame with sound-absorbing material and covering it with a perforated plate, it was possible to reduce the noise frequency range that is particularly common.
It can be seen that the transmission loss increases significantly at around 1000Hz, that is, the soundproofing effect increases. It goes without saying that the effect of the sound-absorbing material is exerted to some extent even when some of the frames are filled with the sound-absorbing material, not all four frames.

To make the glass thickness different between the front and back sides, you need to change the thickness of the U-shaped gasket between the front and back sides, or if there is a slight difference in the glass thickness, it can be handled with a difference in the degree of compression. It is possible to prevent noise from propagating inside due to the resonance of the glass.
Changing the thickness of the glass can also be applied when the required strength is different between the front and back sides.

D. Expansion of double-glazed soundproof windows The structure allows both glasses of a continuous window on the left and right sides of the roughly I-shaped flange to be fixed at the same time with one holding plate, making it easy to create a continuous window. In addition, the structure is such that sound absorbing material can be filled into the recesses on both sides of the I-shaped member, and structural considerations have been made so that it can be easily continued without losing the soundproofing effect.

In addition to the above effects, the heat insulating material provided on the web also has the effect of preventing sound from propagating through the frame.

(Example) In FIG. 1, a frame 101 made of a light metal such as aluminum and having an approximately I-shaped cross section has a web 104 extending over both front and back flanges 102 and 103.
For example, a hook-shaped protrusion 105 is provided near the extension of the front and back flanges 102 and 103.
A glass 111 whose edge 110 is covered with a gasket 109 having a substantially U-shaped cross section and having a protrusion 108 on the inner side of the corner 107 formed by the protruding portion 105 and the flange edge 106 is attached to the left and right in a direction perpendicular to the web 104. Then, both the protruding portion 105 and the U-shaped gasket 109 are connected to each other via a gasket 112.
A cover 11 is fitted onto the holding plate 113 to secure the glass by tightening the holding plate 113 with screws 114, etc., while the cover 11 fits tightly to the holding plate 113 in order to hide the screws and maintain the aesthetic appearance.
It is covered with 7.

Further, the web 104 of the frame having the I-shaped cross section is filled with a sound absorbing material 115, and its surface is covered with a perforated plate 115.
It is covered by 16.

The protrusion 105 is not limited to a hook shape, but may also be a square shape.

The double-glazed soundproof window constructed in this way can be freely and easily expanded in the vertical and horizontal directions by manufacturing and extending frames of the same shape.

Also, as shown in Figure 2, the web 1
04 are formed in advance to face each other, and a rigid material 118 having heat insulating properties is fitted between the meshing parts 119 and 119' to complete the connecting member 1.
By providing 18', the strength of the frame is hardly affected and heat transfer between the glasses on both sides can be prevented. This double-glazed soundproof window is installed at the end 120 of the building.
When used for
Glass is not inserted into the corner 107' of the frame body located at 0, but a support member 121 is filled instead, and a cover 122 is attached and sealed instead of the perforated plate and sound absorbing material.

As mentioned above, the structure of the present invention is much simpler than the prior art, and the method of fixing the glass is also easy.As for soundproofing, the area around the double-glazed window is filled with soundproofing material that suppresses the internal echoes. It is an idea that has excellent performance, as it absorbs sound well, has excellent sound insulation properties, can be easily expanded, and is effective in insulating the space between the inside and outside glass panels.

[Brief explanation of the drawing]

1 to 3 are partial vertical cross-sectional views of different embodiments of the present invention, FIG. 4 is a graph showing the effects of the present invention, and FIG. 5 is a vertical cross-sectional view of a conventional example. 101...Frame material, 102...Front side flange, 1
03... Back side flange, 104... Web, 1
05... Protrusion, 106... Flange edge, 10
7,107'...Corner, 108...Protrusion, 109
... Gasket, 110 ... Edge, 111 ... Glass, 112 ... Gasket, 113 ... Holding plate, 114 ... Screw, 115 ... Sound absorbing material, 116
...Perforated plate, 117...Cover, 118...Rigid material, 118'...Connection part, 119, 119'...
Engagement part, 120... End part, 121... Support member,
122...Cover.

Claims (1)

[Claims for Utility Model Registration] 1. A light metal frame with an approximately I-shaped cross section, or a part of the web with an approximately I-shaped cross section that is fitted and connected with a material that has heat insulation properties and has rigidity as a structural material. A protruding part is provided near the web extension part of both the front and back flanges of a light metal frame, and a glass whose edge is wrapped with a gasket having a substantially U-shaped cross section is provided at the corner formed by the protruding part and the flange edge on both the front and back sides. The protruding part and the U-shaped gasket part are both held down by a single holding plate through the gasket, and the holding plate is fixed to the protruding part with screws or the like to fix the glass. A double-glazed soundproof window whose recesses are filled with sound-absorbing material and whose surface is covered with a perforated plate. 2. The double-glazed soundproof window described in Paragraph 1 of the application for utility model registration, which is made by filling the recesses inside the frame on all four sides of the window with sound-absorbing material and covering the surface with a perforated plate.