JPH10182193A - Soundproof glass - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve desired sound insulating performances by arranging hollow tubular bodies in a void layer of a double glazing. SOLUTION: This soundproof glass 1 is obtained by arranging hollow tubular bodies 7 so as to produce a phase difference between sound passing through an air part in a void layer 9 and sound passing through the hollow tubular bodies formed in the void layer 9 in the void layer 9 of the soundproof glass 1. Thereby, sound insulating performances in a low-frequency region (resonant transmitting frequency) which are defects of a double glazing are simply improved. The hollow tubular bodies 7 are made of a glass, etc., and the cross-sectional shape thereof is circular, square, etc. The hollow tubular bodies 7 are installed as follows: The hollow tubular bodies 7 are fastened onto the inner surface of one glass plate 2 of the soundproof glass 1 with an adhesive and the hollow tubular bodies 7 are made independent so that the inner surface of the glass plate 3 may be kept in a noncontact state with a spacer member 5. The plural number of hollow tubular bodies 7 are arranged with about 100-150mm mutual interval.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double-glazed glass having improved sound insulation performance, and more particularly to a soundproof glass having heat insulation useful in a building or a general house where external noise is remarkable.

[0002]

2. Description of the Related Art Conventionally, in a double-glazing system, not only two glass plates are arranged simply by placing spacers on the periphery of all sides to form a space layer, but also various types of voids are formed in the void layer of the double-glazing system. By devising the heat insulation function or /
In addition, a multi-layer glass for improving the sound insulation function has been proposed.

For example, Japanese Patent Application Laid-Open No. 51-146516 discloses a composite glass whose inside is evacuated, in which a lattice made of a synthetic resin such as polyethylene having suction cups at both ends is sandwiched between two glass plates. It is disclosed that a pressure is applied between both outer surfaces in a vacuum pot to form a number of vacuum chambers divided by a lattice between two pieces of glass.

Japanese Utility Model Publication No. Sho 63-37430 discloses a double-glazed glass with a lattice. A lattice is arranged between the inner peripheral surfaces of a spacer frame, and a glass plate is adhered to both surfaces of the lattice. It is disclosed that in the double-glazed glass, the grid to be provided is brought into contact with the corner block surface of the spacer frame and fixed by screws.

Japanese Patent Application Laid-Open No. 51-55313 discloses a light-transmitting panel and a method of manufacturing the same, and one or more spacer members for defining a space between at least one window glass. Wherein at least two panes are held at a distance, the panes exhibit at least two different masses per unit area, and are sealed from the atmosphere and transmit sound therein. A space between at least one glazing containing a gaseous medium, the speed of which is different from the speed of sound transmission in dry air at the same pressure and temperature, having sound absorbing and thermal properties Is disclosed.

Further, Japanese Patent Laying-Open No. 57-47750 describes a double-glazing system, in which a plurality of glass plates are held opposite to each other at a fixed interval to form an air space between the glass plates, and a plurality of glass plates are formed. At least one of the glass plates is composed of two or more multilayer glass plates, and a polymer material layer having a glass transition temperature of 20 ° C. or lower and a viscoelasticity at room temperature is interposed between the multilayer glass plates. It is disclosed that the air layer between the glass plates and the polymer material layer are combined to have sound insulation.

JP-A-59-64549 describes a heat insulating and sound insulating double glazing, which is the first preform of laminated glass.
And a second plate of simple glass or laminated glass, the second plate being parallel to the first plate and spaced by a gas layer, the two plates being Is a multi-layered glass which is airtightly assembled to each other by using members, each having a thickness of 3 to 8 mm in which the laminated glass of the first plate is joined by a resin layer having a thickness not exceeding 10 mm. The gas layer has a thickness of 6 to 30 mm,
The plate is a simple glass plate having a thickness of more than 8 mm, or a laminated glass subject to the same thickness conditions as the laminated glass of the first plate, and the resin of the laminated glass of the first plate However, a 9mm long, 3mm wide rod made of laminated glass consisting of two 4mm thick glass plates joined by a 2mm thick resin layer is a glass of the same length, same width and 4mm thick A double glazing that is selected to have a critical frequency no more than 35% different from the rods described above is disclosed.

Japanese Utility Model Laid-Open No. 4-84592 discloses a decorative sheet glass, in which a coating layer having heat insulating properties is formed on each of two opposing surfaces of the sheet glass and a width that can be accommodated in an air layer. It is disclosed that a honeycomb structure having the following structure is formed, and the honeycomb structure is provided in the air layer.

Japanese Unexamined Patent Publication (Kokai) No. 6-167983 discloses an acoustic insulating box, which includes at least one flat cavity composed of two substantially parallel panels whose peripheral edges are assembled by an insertion frame. Wherein the cavity is filled with gas and / or air and has a waveguide communicating with the cavity through one or more specific orifices, the shape, cross-section and location of the orifice A box is disclosed that, together with the waveguide cross-section, is determined not to tune to the acoustic and mechanical waves generated in the cavity and panel when the box is placed in the incident acoustic area, respectively.

[0010]

Problems to be solved by the invention
In the composite glass in which the inside is evacuated as described in JP-B-516,
Even if the cross-sectional area of the lattice bone is made extremely small as compared with the area of the vacuum chamber, and the transmission of sound and heat can be reduced, the desired sound insulation performance is hardly achieved.

[0011] In the double-glazed glass with a lattice described in Japanese Utility Model Publication No. 63-37430, even if the lattice and the spacer frame are firmly integrated, the desired sound insulation performance is not improved. It is almost impossible.

In the light-transmitting panel described in JP-A-51-55313 and the method of manufacturing the same, in at least one of the formed spatial layers, the sound transmission speed is the same in dry air at the same pressure and temperature. It is necessary to include a gaseous medium having a different sound transmission speed, and the mere reduced pressure of the dry air cannot sufficiently exhibit the sound absorbing characteristics. Moreover, the gaseous medium is a unique specific substance, the encapsulation operation is complicated, and it is not preferable in terms of cost and environment in case of leakage.

In the double glazing described in JP-A-57-47750, an air layer between glass plates and a polymer material layer having a glass transition temperature of 20 ° C. or less and a viscoelasticity at room temperature at room temperature are interposed. It is a multi-layer glass combined with glass and requires a laminated glass having a unique polymer material layer.There is no drop in transmission loss due to the resonance transmission phenomenon, and the average transmission loss is lower than that of conventional ones. However, the configuration is not always simple.

The heat insulating and sound insulating double glazing described in JP-A-59-64549 is made of laminated glass consisting of two glass plates having a thickness of 2 mm joined by a resin layer having a thickness of 2 mm. At least a laminated glass using a laminated glass resin such that a rod having a length of 9 mm and a width of 3 mm has a critical frequency not more than 35% different from a rod of glass having the same length, the same width and a thickness of 4 mm. It must be one of the configurations. A double glazing having no laminated glass using such a resin is not one of the components, and does not sufficiently exhibit its sound insulating performance.

Further, in the decorative plate glass described in Japanese Utility Model Laid-Open No. 4-84592, a coating layer on the glass surface and a honeycomb structure having a width which can be accommodated in the air layer are integrated, and a desired sufficient Sound insulation performance cannot be reached at all.

The acoustic insulation box described in Japanese Patent Application Laid-Open No. 6-167983 has a waveguide communicating with a cavity via one or more orifices at specific positions.
To produce a box whose cross-section and position, along with the cross-section of the waveguide, are determined so that they do not tune to the acoustic and mechanical waves generated in the cavity and panel when the box is placed in the incident acoustic area, respectively. The detuning between mechanical waves is performed in acoustic mode and mechanical mode.
For example, it is necessary to calculate the coefficient of energy coupling with the computer by a computer, and a simple box cannot sufficiently insulate sound.

As described above, a double-glazed glass which does not have the desired sound insulation performance sufficiently, a glass containing a peculiar gaseous medium, a glass using special laminated glass, or a glass provided with a specific box In any case, it was a double-glazed glass which was hard to say a simple structure.

[0018]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has a desired sound insulation performance and the like by disposing a hollow tubular body in a void layer of a multi-layer glass. Is a double-glazed glass obtained.

That is, according to the present invention, the sound passing through the air portion in the gap layer and the sound passing through the hollow tubular body provided in the gap layer have a phase difference in the gap layer of the double-glazed glass. The sound-insulating glass, in which the hollow tubular body is arranged, and the hollow tubular body on the inner surface of at least one of the two glass plates in the gap layer of the multi-layer glass so as to produce The hollow tubular body is attached so as to be independent of the inner surface of the other glass plate and the spacer so as to be in non-contact with the other glass plate, and the hollow tubular bodies are arranged at intervals from each other. Soundproof glass, also, the above-mentioned soundproof glass, wherein the hollow tubular body is made of glass or plastics,
The soundproof glass described above, wherein the cross-sectional outer peripheral shape of the hollow tubular body is a circle, a square, a rectangle, a triangle, or a polygon, and the interval is 100 to 150 mm.
The soundproof glass described above is provided.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, the soundproof glass of the present invention was produced as follows. As a glass plate,
Commercially available inorganic or transparent glass or opaque glass such as PC glass, such as float glass, and is not particularly limited to colorless or colored, and its type, color tone, shape, etc., and further as flat or bent glass. Needless to say, sheet glass, various strengthened glass, strengthened glass, netted glass, single-pane glass, double-glazed glass, laminated glass, etc., of which various functional films such as a heat-insulating film and a light-shielding film are coated on the surface, may be mentioned. The size of the glass plate is not particularly limited, and the thickness of the glass plate is about 2 mm to about 12 mm, preferably about 3 mm to about 10 mm.

The hollow tubular body is made of glass or plastics, and its cross-sectional outer peripheral shape is circular, square, rectangular, triangular or polygonal. The hollow tubular body may be a transparent body, a transparent body having an adjusted refractive index, an opaque body, a colored body having a decorative or light-shielding property, or a functional body having various functions. .

Further, in the case of a double glazing having a length and an outer diameter, for example, a gap layer of about 12 mm, which is independent so as not to be in contact with the inner surface and the spacer member of the other glass plate which is not adhered. A glass hollow tubular body having an outer diameter of about 10 mm (inner diameter of about 8 mm) or an outer diameter of about 9 mm (inner diameter of about 7 mm) is preferred. Above all, what is necessary for the hollow tubular body is that the sound passing through the void layer of the double glazing, which is soundproof glass, and the sound passing through the hollow tubular body can improve the resonance transmission band frequency (low frequency range). The material, shape and size, especially the length, which cause the phase difference (shift),
Installation interval and fixing method.

FIG. 1 is a front view showing an example of the soundproof glass of the present invention with a part of the soundproof glass omitted, and a hollow tubular body portion (A-A in FIG. 1) around the soundproof glass.
2 is a partially enlarged side sectional view of FIG.

That is, since the soundproof glass 1 has the spacer member 5 for appropriately storing the desiccant 10, the soundproof glass 1 has a length independent of the spacer member 5 in a non-contact state and is independent of the spacer member 5. A hollow tubular body 7 having a diameter such that it is independent of and in contact with the inner surface 12 of the other glass plate 3 in the gap layer 9 is spaced apart from each other by a predetermined distance and has a length slightly shorter than the distance between the upper and lower spacer members. A glass plate 2 in which a plurality of pieces are adhered in a short shape to the inner surface 13 of the glass plate 2 via an adhesive layer 8 and fixedly arranged is produced.

Next, the two glass plates, the glass plate 2 and the glass plate 3 having the surface on which the hollow tubular body 7 is disposed as an inner surface, are opposed to each other in a fixed space, and are adhered to the inner peripheral portions of the entire periphery of the two glass plates. The space is maintained by fixing the spacer member 5 through the layer 4, and a seal is formed at a portion formed by the outer surface of the spacer member 5 and the inner surfaces of the two glass plates 2 and 3. Agent 6
Is sealed by sealing the gap layer 9
Is formed as a double-glazed glass. In addition, as shown in FIG. 2, in order to fix the hollow tubular body 7 more strongly, the glass plate 3
The auxiliary member 11 may be appropriately arranged between the inner surface of the hollow member and the hollow tubular body 7.

The arrangement of the hollow tubular body may be a short one having a length slightly shorter than the distance between the upper and lower spacer members, or a perforated lattice, or the like. The shape or arrangement may be taken into account, or one or both of the two glass plates may be arranged in parallel or cross without contact. When the arrangement of the hollow tubular bodies is spaced apart from each other to form a short length slightly shorter than the spacing between the upper and lower spacer members, the spacing is about 100 mm or more because of the improvement in sound insulation performance and the reduction in the sense of incongruity in transparency. It is about 150mm.

The adhesive layer for attaching the hollow tubular body is a double-sided adhesive tape (having a thickness of about 0.1 mm) which is excellent in weather resistance and durability.
Is preferable, but an adhesive or the like that exhibits an adhesive force having weather resistance and durability similar to the double-sided adhesive tape may be used.

The performance of the double glazing, except for the sound insulation performance, may be any level which is generally available on the market, such as a spacer made of aluminum, duralumin or resin, a double-sided tape made of butyl rubber, or the like. And those commonly used such as polysulfide-based and silicon-based sealants. Furthermore, in addition to the above-mentioned two glass plates, double-layered glass with three glass plates, a hollow tubular body is indispensable, and various functional members such as a vibration damping material other than the hollow tubular body can be appropriately adopted. .

As described above, in the gap layer of the double-glazed glass, the sound passing through the air portion in the gap layer and the sound passing through the hollow tubular body provided in the gap layer have a phase difference. By arranging the hollow tubular body so as to generate, the phase difference (deviation) between the sound passing through the air layer portion and the sound passing through the hollow tubular body portion in the void layer (air layer) of the double-glazed glass is appropriately adjusted. In short, it is possible to easily improve the sound insulation performance in a low frequency band (resonance transmission band frequency), which is a drawback of the double-glazed glass. Further, the hollow tubular body can exhibit decorativeness and crime prevention properties, and furthermore, functional enhancement by various functional films such as a heat insulating film, light scattering by combining template glass and glass tissue, ultraviolet and infrared absorption. It can have a light-shielding property, a heat-insulating property, and the like by using glass or colored glass.

[0030]

The present invention will be described below in detail with reference to examples. However, the present invention is not limited to such an embodiment.

Example 1 A flow having a size of about 1040 mm × 1040 mm, a thickness of about 3 mm and a thickness of about 6 mm
Two glass plates (hereinafter referred to as Fl3 glass plate and Fl6 glass plate, respectively) and a glass tube having an outer diameter of about 10 mmφ (inner diameter of about 8 mmφ) and a length of about 990 mm as a hollow tubular body. Was prepared.

Then, as shown in FIGS. 1 and 2 above, the centering is performed in the vertical direction so as to be independent of the spacer member in a non-contacting state (the remaining upper and lower portions are the same at about 25 mm each). The distance between the centers (pitch) was set to about 125 mm, and seven of them were made into a short length at equal intervals, and the glass tube was filled with about 0.1 mm thick double-sided adhesive tape (3M).
6 was attached to the surface of the glass plate.

Subsequently, a glass plate of F16 with the glass tube was
The glass tube of Fl3 is fixed between the inner surface of the glass plate of Fl3 and the glass tube so that the glass plate is attached to the inner surface of the glass plate, and the glass tube is attached to the inner surface of the glass plate of Fl3. Urethane sheet to prevent contact (5
Approximately 12mm with auxiliary members (mm x 5mm x 2mm thick)
And a spacer member appropriately storing a desiccant is fixed to the inner peripheral portion of the entire periphery of both glass plates via an adhesive layer made of a double-sided adhesive tape made of butyl rubber. The space is maintained, and a polysulfide-based sealing agent (thiocol) is embedded and sealed in a portion consisting of the outer surface of the spacer member and the remaining portion of the inner peripheral portion of the entire peripheral area of the two glass plates. Thereby, a double-glazed glass (F13 + A12 + F16) having a sealed void layer was obtained.

The obtained double glazing (Fl3 + A12 + Fl6) is
According to JIS A 1416 "Method of measuring sound transmission loss in laboratory", sound transmission loss (dB) at a frequency between 100 Hz and 6300 Hz was measured, and the sound insulation performance was evaluated. In addition,
The sound source was on the Fl6 side.

As a result, as shown in FIG. 3, when there is no hollow tubular glass tube, when there is a hollow tubular glass tube, there is no drop between 160 Hz and 400 Hz. A glass tube that is a hollow tubular body, such as a sound insulation class (JIS sound insulation class: sound insulation measurement results are determined and displayed based on the sound insulation class curve defined in JIS A 1416), compared to TS-25 for TS-30 By using, it was possible to obtain a soundproof glass in which the sound insulation performance was improved by one rank.

Example 2 The same double-layer glass (Fl5 +) as in Example 1 was used, except that the Fl3 glass plate and the Fl6 glass plate were each replaced by a glass plate (Fl5) having a thickness of about 5 mm. A12 + Fl5)
I got

The obtained double glazing (F15 + A12 + F15) was
Measurement and evaluation were performed in the same manner as in Example 1. As a result, as shown in FIG. 4, when there is no hollow tubular body, when there is a hollow tubular body, the sound insulation performance is generally improved, and the sound insulation grade is intermediate between TS-25 and TS-30. Soundproof glass of grade TS-30 was obtained.

Example 3 In the same manner as in Example 1 except that the Fl3 glass plate and the Fl6 glass plate were each replaced by a glass plate (Fl3) having a thickness of about 3 mm, the same multilayer glass (Fl3 + A12 + Fl3)
I got

The obtained double glazing (Fl3 + A12 + Fl3) was
Measurement and evaluation were performed in the same manner as in Example 1. As a result, as shown in FIG. 5, it was possible to obtain a soundproof glass having a largely improved sound insulation performance over the entire case where there is a hollow tubular body compared to the case where there is no hollow tubular body.

Example 4 In Example 1, the length of the glass tube which was a hollow tubular body was reduced to about
A similar double-glazed glass (Fl3 + A12 + Fl6) was obtained in the same manner as in Example 1 except that the diameter was changed from 990 mm to about 500 mm.

The obtained double glazing (Fl3 + A12 + Fl6) was
Measurement and evaluation were performed in the same manner as in Example 1. As a result, the soundproof glass was as shown in FIG. 6 and there was no difference in sound insulation performance depending on the length of the hollow tubular body.

Example 5 The procedure of Example 1 was repeated, except that the glass plate of F16 was replaced with a laminated glass (Fl3 + Fl3) having a thickness of about 3 mm, and a glass tube was adhered to the inner surface of the laminated glass plate. To obtain the same double-glazed glass [laminated glass (Fl3 + Fl3) + A12 + Fl3].

The obtained double glazing [laminated glass (Fl3 +
Fl3) + A12 + Fl3] was measured and evaluated in the same manner as in Example 1. The sound source was on the laminated glass (Fl3 + Fl3) side. As a result, as shown in FIG. 7, there is almost no difference in the sound insulation performance between the case where there is no hollow tubular body and the case where there is a hollow tubular body, but the sound insulation performance is improved between 250 Hz and 630 Hz. The glass was obtained.

Example 6 In the same double-layer glass (Fl3 + A12 + Fl6) as in Example 1, the sound source was changed to the Fl6 side and the Fl3 side, and measurement and evaluation were performed in the same manner as in Example 1.

As a result, as shown in FIG. 8, it is possible to obtain a soundproof glass whose sound insulation performance is improved between 400 Hz and 6300 Hz in the case where there is no hollow tubular body, whereas in the case where there is a hollow tubular body. Was.

Example 7 The same double-layer glass (Fl3 + A12 +) as in Example 1 was used, except that the length of the glass tube as a hollow tubular body was changed from about 990 mm to about 500 mm. Fl6)
The measurement and evaluation were performed in the same manner as in Example 1 except that the sound source was changed to the Fl6 side and the Fl3 side.

As a result, as shown in FIG. 9, the sound insulation performance was better when the sound source was on the Fl3 side than on the Fl3 side. Example 8 In Example 1, the length of the glass tube which was a hollow tubular body was changed from about 990 mm to about 500 mm, and the position where the glass tube was attached was FL16.
In the same manner as in Example 1 except that the inner side of the glass plate was changed to the inner side of Fl3,
3 + A12 + Fl6), and the measurement and evaluation were performed in the same manner as in Example 1 except that the sound source was changed to the Fl6 side and the Fl3 side.

As a result, the result was as shown in FIG. 10, and the sound insulation performance with almost no difference was shown. Example 9 In Example 1, the gap layer was formed from about 12 mm (A12) to about 22 mm.
mm (A22) and the same multi-layer glass (Fl3 + A22 + Fl6) as in Example 1 except that the tube diameter of the hollow tubular glass tube was changed from about 10 mm to about 20 mm. With the gap layer changed to about 22 mm (A22), the hollow tubular body was not measured, and the tube diameters of the hollow tubular body were about 10 mm and about 20 mm.

As a result, as shown in FIG. 11, when the diameter of the glass tube which is a hollow tubular body is changed to about 20 mm,
It showed the best sound insulation performance. Example 10 In Example 1, a glass layer (Fl4) having a thickness of about 4 mm was used between Fl3 and F16 glass sheets to form a gap layer of about 6 mm (A).
6) and double-layered glass of about 12 mm (A12), and a vibration damping material (acrylic resin plate 5 mm thick + neoprene rubber 2 mm thick, large on the outer surface of Fl3 and Fl6 glass plates along the position of the hollow tubular body. (Width 30 mm × length 1000 mm) in the same manner as in Example 1 except that a double insulating glass with vibration damping material (Fl3 + A6 + Fl4 + A12 + Fl6) was obtained.

The obtained double-glazing unit with vibration damping material (Fl
3 + A6 + F14 + A12 + F16) was measured and evaluated in the same manner as in Example 1. The sound source was on the Fl6 side. As a result, as shown in Fig. 12, the sound insulation performance of the hollow tubular body + vibration damping material is better than that of the case without damping material, and the sound insulation performance of TS-35 is significantly improved. The obtained soundproof glass was obtained.

[0051]

As described above, according to the present invention,
By using a soundproof glass in which a hollow tubular body is adhered to the inner surface of one of the glass plates of the double-glazed glass, the sound insulation performance can be improved. In addition to the use of the hollow tubular body, sound insulation is achieved by using a vibration damping material in combination. A useful soundproof glass can be provided simply and efficiently, for example, a TS-35 grade can be cleared by the grade.

[Brief description of the drawings]

FIG. 1 is a front view showing the soundproof glass of the present invention with a part thereof omitted.

FIG. 2 is a partially enlarged side sectional view of a hollow tubular body (taken along AA in FIG. 1) in a peripheral region of the soundproof glass of the present invention.

FIG. 3 is a diagram showing the sound insulation performance of Example 1 of the soundproof glass of the present invention.

FIG. 4 is a view showing the sound insulation performance of the soundproof glass of the present invention in Example 2.

FIG. 5 is a diagram showing the sound insulation performance of a soundproof glass according to a third embodiment of the present invention.

FIG. 6 is a diagram showing the sound insulation performance of the soundproof glass of the present invention in Example 4.

FIG. 7 is a view showing the sound insulation performance of the soundproof glass of the present invention in Example 5.

FIG. 8 is a diagram showing the sound insulation performance of a soundproof glass according to a sixth embodiment of the present invention.

FIG. 9 is a view showing the sound insulation performance of the soundproof glass of the present invention in Example 7.

FIG. 10 is a diagram illustrating the sound insulation performance of the soundproof glass of the present invention in Example 8.

FIG. 11 is a diagram illustrating the sound insulation performance of a soundproof glass according to a ninth embodiment of the present invention.

FIG. 12 is a diagram illustrating the sound insulation performance of a soundproof glass according to a tenth embodiment of the present invention.

[Description of Signs] 1 Soundproof glass 2 Glass plate 3 Glass plate 4 Adhesive layer 5 Spacer member 6 Sealing agent 7 Hollow tubular body 8 Adhesive layer 9 Void layer 10 Drying agent 11 Auxiliary member 12 Inner surface 13 Inner surface 14 Peripheral Area

Claims (5)

[Claims] 1. A method for producing a phase difference between a sound passing through an air portion in a gap layer and a sound passing through a hollow tubular body provided in the gap layer in a gap layer of a double-glazed glass. A soundproof glass comprising a hollow tubular body. 2. A hollow tubular body is stuck to an inner surface of at least one of two glass plates in a gap layer of the double-glazed glass, and the hollow tubular body is bonded to an inner surface of the other glass plate. 2. The soundproof glass according to claim 1, wherein said spacer is made independent of said spacer so that said hollow tubular body is spaced apart from each other. 3. The soundproof glass according to claim 1, wherein the hollow tubular body is made of glass or plastics. 4. The soundproof glass according to claim 1, wherein the outer peripheral shape of the hollow tubular body is circular, square, rectangular, triangular or polygonal. 5. The soundproof glass according to claim 1, wherein the distance is 100 to 150 mm.