JP2011032851A - Mounting structure of laminated double-glazing for mounting on sash frame - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mounting structure of a laminated double-glazing for mounting on a sash frame which is used for fitting a thick laminated double-glazing into an existing thin sash frame with a narrow glass plate fitting groove. <P>SOLUTION: This mounting structure of a laminated double-glazing for mounting on a sash frame is used when a laminated double-glazing, in which a pair of plate glasses G, G' are disposed parallel to each other at an interval so as to have a hollow layer 1 and which uses a laminated glass plate on at least one side of the pair of plate glasses, is fitted to the glass plate fitting groove of the sash frame 2. The glass plate on the hollow layer side which forms the laminated glass plate is fitted to the glass plate fitting groove of the sash frame. The outer glass plate G2 which forms the laminated glass plate is smaller than the opening of the sash frame, and not fitted to the glass plate fitting groove of the sash frame. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a structure for attaching laminated glass to a sash frame when a laminated glass having at least one laminated glass is fitted into an existing sash having a narrow glass fitting groove. In particular, the present invention relates to a structure for attaching laminated glass to a sash frame using laminated glass for a pair of glass sheets constituting the glass.

  In recent years, in residential buildings, especially apartment buildings, near roads, along railway lines and airports, buildings, audio rooms, piano rooms, libraries, museums, etc., unacceptable sound, or transmission of music and conversation There is a growing interest in noise, which is a disturbing sound, and sound absorbing materials are embedded in floors, walls, ceilings, and the like of buildings, and soundproofing or soundproofing doors are also used for doors. In addition, even a window through which sound easily passes is required to have sound insulation performance as well as heat insulation performance. Therefore, the window has been required to attenuate sound, which is a longitudinal wave transmitted as a dense wave of a medium such as air.

  The multi-layer glass has a hollow layer in which a pair of plate glasses are spaced in parallel. In general, an aluminum spacer is attached to the peripheral edge of a pair of glass plates with a butyl rubber adhesive, and the pair of glass plates and the aluminum spacer are bonded and integrated with the butyl rubber adhesive. A U-shaped concave portion is filled with a sealing material made of polysulfide or silicone and sealed. Therefore, the double-glazed glass has a hermetically sealed hollow layer surrounded by plate glass and aluminum spacers, and is excellent in heat insulation performance.

  Laminated glass is heated and melted by sandwiching a transparent resin film such as polyvinyl butyral (hereinafter abbreviated as PVB) or ethylene-vinyl acetate copolymer (hereinafter abbreviated as EVA) between a pair of plate glasses. Bonded and integrated. For laminated glass, reflection at the interface between the plate glass and the resin intermediate layer, suppression of the coincidence effect by the resin intermediate layer made of a transparent resin film directly adhered to the plate glass, absorption attenuation due to viscous resistance of the resin intermediate layer of sound that is a dense wave And has excellent sound insulation performance compared to a single glass plate made of a single glass having the same thickness.

  In order to improve both the heat insulation performance and the sound insulation performance of the glass sash, it is preferable to employ a laminated double glazing having at least one laminated glass made of laminated glass for a pair of plate glasses forming the double glazing. Laminated double-glazed glass is made of laminated glass on one or both sides, and combines the sound insulation performance, crime prevention performance of laminated glass and the heat insulation performance of double-glazed glass.

  The aforementioned coincidence effect is a phenomenon in which transmission loss is reduced at a specific frequency in a plate-like material, in other words, sound insulation performance is reduced. Specifically, when sound is incident obliquely on the plate surface, there is a phase difference in the sound pressure depending on the position on the plate surface, so that inherent bending forced vibration occurs along the plate surface, and sound transmission is large at a certain frequency. This is a phenomenon in which the sound insulation performance decreases. In the case of flat glass, when acoustic waves, which are longitudinal elastic waves, are incident on the glass surface obliquely, rather than perpendicularly, a transverse vibration wave is generated on the glass surface due to the coincidence effect, and the sound insulation performance is reduced due to resonance, and the coincidence limit frequency The sound insulation performance is lowered in the above frequency range.

  The lowest frequency at which the phenomenon of coincidence occurs is called the coincidence limit frequency, and there is a correlation between the coincidence limit frequency and the thickness of the glass plate. It is known to be. In the sound insulation of the sash, the occurrence of this coincidence effect must be suppressed.

  In laminated double-glazed glass, if a single plate glass consisting of only glass and a laminated glass are used for a pair of flat glass plates, the coincidence of each glass plate can be changed by changing the thickness of the individual glass plates forming the laminated glass. By making the limit frequency different, it becomes easy to prevent the sound insulation performance from being lowered due to the coincidence effect.

  However, since the laminated multilayer glass is thick, there is a problem that it cannot be incorporated into a sash frame in which the glass fitting groove has a narrow groove width.

  In Patent Document 1, when a laminated glass having a total thickness exceeding the glass fitting groove is applied to an existing window frame, the laminated glass is attached to the window frame without using an attachment or processing the existing window frame. A laminated glass construction method capable of being constructed and a window structure in which the laminated glass is constructed are disclosed.

  In the invention described in Patent Document 1, at least one glass plate of laminated glass is formed smaller than the opening of the window frame, and the end of the remaining glass plate excluding the glass plate is the glass of the window frame. This is a laminated glass window structure that is fitted into a plate fitting groove, and a gap between the glass fitting groove and the laminated glass is sealed with a sealing material.

  In the window structure of laminated glass described in Patent Document 1, the gap between the glass fitting groove and the laminated glass is sealed by adhering with a sealant including the outer edge of the intermediate film, thereby improving long-term durability, watertightness Improvement of airtight performance, prevention of falling and dropping of laminated glass due to difficulty of cutting materials, improvement of safety and crime prevention such as prevention of scattering and intrusion, improvement of fire and fire resistance performance, membrane by sealing of interlayer film The effects of improving the stability and durability of the resin and improving the strength by adhesion of the sealant are exhibited.

JP 2004-324372 A

  An object of the present invention is to provide a structure for attaching a laminated multi-layer glass to a sash frame for fitting a thick laminated multi-layer glass into a sash frame having a narrow groove width of an existing glass fitting groove. . Specifically, a laminated multi-layer glass having a sound insulation property of more than 18 mm thick is attached to an existing sash frame having a fitting groove width of 18 mm or less, and a laminated sash for obtaining a glass sash having a sound insulation grade of T-3 or higher is obtained. It aims at providing the attachment structure to a sash frame.

  In order to incorporate the laminated multilayer glass into an existing sash, the thickness of the laminated multilayer glass must be 18 mm or less. However, in a laminated double glazed glass in which air is sealed in a hollow layer, in order to pass the sound insulation grade T-3 according to JIS A4706: 2000 “sash” when a glass sash is used, the laminated double glazed glass is not suitable. The configuration of plate glass / hollow layer (air-filled) / single plate glass required a thickness of 22 mm or more. In addition, in a laminated double glazing glass in which helium is sealed in a hollow layer, in order to pass the sound insulation grade T-4 according to JIS A4706: 2000 “sash” when a glass sash is used, the laminated double glazing must be a single piece. The configuration of plate glass / hollow layer (helium sealed) / single plate glass required a thickness of 22 mm or more.

  Another object of the present invention is to prevent a glass plate from being damaged when the glass sash is deformed due to an earthquake or the like, and to provide a glass sash having an excellent aesthetic appearance of a sash frame.

  In order to fit a thick laminated double-glazed glass into a sash frame with a narrow groove width of the existing glass fitting groove, only the glass plate on the hollow layer side of the laminated glass forming the laminated multilayer glass is fitted into the glass of the sash frame. The glass plate fitted into the groove and outside the laminated glass, in other words, the glass plate on the side opposite to the hollow layer is smaller than the opening of the sash frame, and may not be fitted into the glass fitting groove of the sash frame.

  That is, the present invention is a laminated structure in which a pair of plate glasses are spaced apart in parallel, end portions are sealed, a hollow layer is provided between the pair of plate glasses, and a laminated glass is used on at least one side of the pair of plate glasses. It is an attachment structure to the sash frame of the multilayer glass when the multilayer glass is fitted into the glass fitting groove of the sash frame, and the glass layer on the hollow layer side forming the laminated glass is fitted into the glass fitting groove of the sash frame, The outside of the at least one laminated glass, in other words, the glass plate opposite to the hollow layer is smaller than the opening of the sash frame and is not fitted in the glass fitting groove of the sash frame. It is the attachment structure to the sash frame of a layer glass.

  In order to improve sound insulation performance more, it is preferable to use laminated double glazing using laminated glass for both of a pair of plate glasses.

  That is, the present invention is the above-mentioned structure for attaching laminated glass to a sash frame, wherein laminated glass made of laminated glass is used for both of a pair of plate glasses.

  Specifically, in the present invention, a pair of plate glasses are spaced apart in parallel, end portions are sealed, a hollow layer is provided between the pair of plate glasses, and laminated glass is used for both the pair of plate glasses. It is an attachment structure to the sash frame of the multilayer glass when the multilayer glass is fitted into the glass fitting groove of the sash frame, and the glass layer on the hollow layer side forming the laminated glass is fitted into the glass fitting groove of the sash frame, The outside of the at least one laminated glass, in other words, the glass plate opposite to the hollow layer is smaller than the opening of the sash frame and is not fitted in the glass fitting groove of the sash frame. It is the attachment structure to the sash frame of a layer glass.

  Further, in the structure for attaching the laminated multilayer glass of the present invention to the sash frame, the outer side forming the laminated glass, in other words, the state where the glass plate end surface opposite to the hollow layer and the sash frame are in contact with no gap. When a force is applied to the glass sash due to an earthquake or the like, the outside of the laminated glass, in other words, the glass plate opposite to the hollow layer may be damaged from the end face. Therefore, the interval between the outer side of the laminated glass, in other words, the glass plate end surface opposite to the hollow layer and the sash frame is set to 3 mm or more and 25 mm or less. If it is less than 3 mm, when the glass sash is deformed by an earthquake or the like, the outer side forming the laminated glass, in other words, the glass plate end surface opposite to the hollow layer and the sash frame easily collide with each other. Moreover, it is not necessary to make it wider than 25 mm. Preferably, it is 15 mm or less.

  At this time, if an elastic body is sandwiched between the end face of the glass plate and the sash frame, it effectively acts as a cushioning material when the glass sash is deformed by an earthquake or the like.

  Furthermore, the present invention provides at least one outer side of the laminated glass, in other words, the distance between the glass plate end surface opposite to the hollow layer and the sash frame is 3 mm or more and 25 mm or less, and between the glass plate end surface and the sash frame. An elastic body is sandwiched between the laminated multi-layered glass and the sash frame.

  For the aesthetic appearance of the sash frame, it is sandwiched between the gap between the end face of the glass plate and the sash frame and at the outer periphery of at least one of the laminated glass, in other words, the entire periphery of the glass plate opposite to the hollow layer. It is preferable to provide an elastic blindfold.

  Furthermore, the present invention provides at least one outer side of the laminated glass, in other words, the gap between the glass plate end face and the sash frame and the blindfold of the elastic body sandwiched in the entire circumference of the glass plate opposite to the hollow layer. A structure for attaching the laminated double-glazed glass to the sash frame, characterized by comprising:

  In addition, the present invention is a laminated structure in which a pair of plate glasses are spaced apart in parallel, end portions are sealed, a hollow layer is provided between the pair of plate glasses, and a laminated glass is used on at least one side of the pair of plate glasses. A method of attaching a laminated glass to a sash frame of a laminated glass when the multilayer glass is fitted into the glass fitting groove of the sash frame, and the glass layer on the hollow layer side forming the laminated glass is fitted into the glass fitting groove of the sash frame, At least one outer side of the laminated glass, in other words, the glass plate on the opposite side of the hollow layer is made smaller than the opening of the sash frame, and is not fitted into the glass fitting groove of the sash frame. This is a method of attaching the glass to the sash frame.

  Furthermore, the present invention is a method for attaching the laminated multilayer glass to the sash frame, wherein laminated glass composed of laminated glass is used for both the pair of plate glasses.

  In other words, in the present invention, a pair of plate glasses are spaced in parallel, end portions are sealed, a hollow layer is provided between the pair of plate glasses, and laminated glass is used for both the pair of plate glasses. A method of attaching a laminated glass to a sash frame of a laminated glass when the multilayer glass is fitted into the glass fitting groove of the sash frame, and the glass layer on the hollow layer side forming the laminated glass is fitted into the glass fitting groove of the sash frame, At least one outside of the laminated glass, in other words, the glass plate on the opposite side of the hollow layer is made smaller than the opening of the sash frame, and is not fitted into the glass fitting groove of the sash frame. This is a method of attaching the glass to the sash frame.

  In order to obtain a glass sash that passes the sound insulation grade T-3 grade or higher in accordance with JIS A4706: 2000 by fitting laminated laminated glass into an existing sash frame having a fitting groove width of 18 mm or less. A structure for attaching a double-glazed glass to a sash frame is used.

  At this time, the thickness of the plate glass fitted in the fitting groove of the sash frame is preferably 4.7 mm or more for safety. In the present invention, the notation of plate glass includes laminated glass, and the notation of glass plate does not include laminated glass.

  When designing a glass sash to fit a sound insulation grade T-3 rating according to JIS A4706: 2000 by fitting a laminated glass with air enclosed in a hollow layer into a sash frame, the thickness of the laminated glass It is difficult to design so as to be 22 mm or less.

  A glass sash that passes sound insulation grade T-3 in accordance with JIS A4706: 2000 by fitting laminated multi-layer glass in which air is enclosed in a hollow layer into an existing sash having a fitting groove width of 18 mm or less. In order to obtain the above, the above-described structure for attaching the double-glazed glass to the sash frame is used.

  When designing a glass sash to pass a sound insulation rating T-4 rating according to JIS A4706: 2000 by fitting a glass sash using laminated glass with helium sealed in a hollow layer into a sash frame It is difficult to design the multilayer glass so that the thickness is 22 mm or less. In addition, compared with the case where air is enclosed in the hollow layer of the laminated multilayer glass, the sound insulation performance is improved but the heat insulation performance is lowered when helium is enclosed in the hollow layer.

  A laminated glass with helium sealed in a hollow layer is fitted into an existing sash whose fitting groove has a width of 18 mm or less to obtain a glass sash that passes the sound insulation grade T-4 according to JIS A4706: 2000. For the above, the structure for attaching the laminated multilayer glass to the sash frame is used.

  Furthermore, the present invention uses the above-mentioned structure for attaching laminated laminated glass to a sash frame, and attaches the laminated glass to a sash frame in which the width of the fitting groove is 18 mm or less, to JIS A4706: 2000 “sash”. It is a glass sash characterized by passing the sound insulation class T-3 or higher.

  Furthermore, the present invention uses the above-mentioned structure for attaching laminated laminated glass to a sash frame, and attaches laminated laminated glass in which air is enclosed in a hollow layer to a sash frame having a fitting groove width of 18 mm or less. The glass sash is characterized by passing the sound insulation class T-3 according to JIS A4706: 2000 “Sash”.

  Furthermore, the present invention uses the above-described structure for attaching laminated laminated glass to a sash frame, and attaches laminated laminated glass in which helium is enclosed in a hollow layer to a sash frame having a fitting groove width of 18 mm or less. The glass sash is characterized by passing the sound insulation grade T-4 according to JIS A4706: 2000 “Sash”.

  Moreover, in the glass sash in the present invention, the transparent resin intermediate layer of the laminated glass obtained by bonding and integrating the glass plate with the transparent resin intermediate film may be PVB or EVA alone, but in order to further improve the sound insulation performance, PVB with different monomer composition ratio and / or molecular weight was laminated as a transparent resin with different physical properties such as viscosity by changing the chemical composition, or polyvinyl acetal resin having a different chemical structure from PVB was laminated. By using a sound-insulating interlayer film in which PVB having different physical properties such as viscosity is laminated, a transparent sound-insulating interlayer film made of a triblock copolymer in which polystyrene and vinyl-polyisoprene are bonded and EVA are laminated. It is preferable to use a sound insulating interlayer.

  Furthermore, the present invention is the above glass sash, which is used for laminated multi-layer glass, in which the transparent resin intermediate layer of laminated glass in which a glass plate is bonded and integrated with a transparent resin intermediate film is combined with PVB, EVA or sound insulation. It is a glass sash characterized by using a conductive intermediate film.

  To the laminated glass sash frame for fitting the laminated glass having a large thickness into the sash frame having a narrow groove width of the existing glass fitting groove by the mounting structure of the laminated glass sash frame of the present invention. A mounting structure was provided.

  Specifically, a laminated multi-layer glass having a sound insulation property of more than 18 mm thick is attached to an existing sash frame having a fitting groove width of 18 mm or less, and a laminated sash for obtaining a glass sash having a sound insulation grade of T-3 or higher is obtained. A mounting structure for a sash frame was provided.

  Moreover, when a glass sash deform | transformed by an earthquake etc., while suppressing that a glass plate was damaged, the sash frame excellent in the aesthetics of the sash frame was provided.

  FIG. 1 is an enlarged cross-sectional view of a main part of an example of a structure for attaching a laminated multi-layer glass of the present invention to a sash frame. This is an example in which a laminated glass is used for one side G ′ of a pair of plate glasses G and G ′ forming a laminated multilayer glass.

  As shown in FIG. 1, a laminated double-glazed glass in which a pair of plate glasses G and G ′ are spaced in parallel and a hollow layer 1 is provided between the pair of plate glasses G and G ′ is used as a glass of a sash frame 2. When fitting into the fitting groove, laminated glass is used for a pair of glass sheets G and G ′ on one side of the laminated glass sheet G ′, and the glass sheet G1 on the hollow layer 1 side forming the laminated glass is a sash frame 2. The glass plate G2 that is fitted into the glass fitting groove and forms the laminated glass, in other words, the glass plate G2 on the opposite side of the hollow layer is smaller than the opening of the sash frame 2, and is not fitted into the glass fitting groove of the sash frame 2. .

  FIG. 2 is an enlarged cross-sectional view of a main part of an example of a structure for attaching the laminated multi-layer glass of the present invention to a sash frame. This is an example in which laminated glass is used for both of a pair of plate glasses G and G ′ forming laminated laminated glass.

  As shown in FIG. 2, a pair of glass sheets G and G ′ are spaced in parallel, and a laminated multi-layer glass in which a hollow layer 1 is provided between the pair of glass sheets G and G ′ is fitted into a sash frame 2. When fitting into the groove, laminated glass is used for both of the pair of glass sheets G and G ′ forming the laminated glass, and the glass glass grooves G1 and G3 on the hollow layer side forming the laminated glass are the glass fitting grooves of the sash frame 2. The glass plates G2 and G4 on the outer side forming the laminated glass, in other words, on the opposite side of the hollow layer are smaller than the opening of the sash frame 2, and are not fitted in the glass fitting grooves of the sash frame 2.

  FIG. 3 is an enlarged cross-sectional view of the main part of an example of a structure for attaching the laminated double-glazed glass of the present invention to a sash frame. It is an example of the attachment structure to the sash frame of the laminated | multilayer glass of this invention different from FIG. 2 at the time of using a laminated glass for both of a pair of plate glass G and G 'which make a laminated multilayer glass.

  As shown in FIG. 3, a pair of plate glasses G and G ′ are spaced in parallel to have a hollow layer 1, and when the laminated multilayer glass is fitted into the glass fitting groove of the sash frame 2, the laminated multilayer glass is formed. Laminated glass is used for both of the pair of glass sheets G and G ′, and the glass sheet G1 on one hollow layer side forming the laminated glass is fitted into the glass fitting groove of the sash frame 2 to form the laminated glass, in other words, For example, the glass plate G2 on the opposite side to the hollow layer is smaller than the opening of the sash frame 2 and is not fitted in the glass fitting groove of the sash frame 2.

  Laminated glass has reflection due to the interface between the glass plate and the resin intermediate layer, suppression of the coincidence effect by the resin intermediate layer made of a transparent resin film directly bonded to the glass plate, and the viscous resistance of the resin intermediate layer of sound that is a dense wave There is absorption attenuation, and it is excellent in sound insulation performance compared with a single plate glass of the same thickness made of a single glass plate. In the glass sash having the sash frame mounting structure of the laminated multi-layer glass of the present invention, in order to enhance the excellent sound insulation performance, as shown in FIG. 2 and FIG. 3, the laminated glass is used for both the pair of glass sheets G and G ′. It is preferable to employ a laminated multilayer glass using

  FIG. 4 is a front view of the laminated multilayer glass used in the present invention.

  As shown in FIG. 4, the glass plate G2 on the outer side forming the laminated glass, in other words, the side opposite to the hollow layer is smaller than the glass plate G1 on the hollow layer side forming the laminated glass. In this manner, the glass plate G2 on the outer side forming the laminated glass, in other words, the glass plate G2 on the side opposite to the hollow layer is made smaller than the opening of the sash frame 2 (not shown), and the glass plate G1 on the hollow layer side forming the laminated glass is formed. Fit into the glass fitting groove of the sash frame 2. The distance between the end face of the glass plate G1 and the end face of the glass plate G2 at this time is referred to as a margin.

  As shown in FIGS. 1-3, in the attachment structure to the sash frame 2 of the laminated | multilayer glass of this invention, the outer side smaller than the opening part of the sash frame 2 which makes a laminated glass, in other words, the glass on the opposite side to a hollow layer The distance between the end face of the plate and the sash frame 2 is preferably 3 mm or more and 25 mm or less, and the elastic body 3 is preferably sandwiched between the end face of the glass plate and the sash frame. By doing so, when the glass sash is deformed due to an earthquake or the like, the glass plate is prevented from being damaged, and the elastic body 3 effectively acts as a cushioning material. Examples of the elastic body 3 include silicon rubber, urethane rubber, chloropyrene rubber, ethylene-propylene-diene rubber (hereinafter abbreviated as EPDM) and the like.

  In the attachment structure of the laminated double-glazed glass of the present invention to the sash frame 2, for the aesthetic appearance of the sash frame 2, the outside is smaller than the opening of the sash frame 2 forming the laminated glass, in other words, the opposite side to the hollow layer. It is preferable to provide the concealed part 4 of the elastic body 3 sandwiched between the gap between the end face of the glass plate and the sash frame 2 and the gap on the entire circumference of the peripheral edge of the glass plate. The blindfold 4 may be provided on the sash frame 2 itself, or on the outer side smaller than the opening forming the laminated glass, in other words, on the entire circumference of the peripheral edge of the glass plate opposite to the hollow layer, An aluminum plate or the like may be attached using a double-sided tape. A resin plate having the same color as that of the sash frame 2 is preferably used because of easy attachment and excellent aesthetics.

  In addition, as shown in FIGS. 1 to 3, when the multi-layer glass is fitted to the sash frame 2, an elastic body that softly absorbs impact inside the sash frame 2, for example, a setting block made of chloropyrene rubber or EPDM It is preferable to arrange 5 and put a double-glazed glass in accordance with this. In order to absorb more shock when opening and closing the glass sash, the setting block 5 may be placed at a position that is 1/4 of the distance from the corner of each side of the laminated multilayer glass. preferable.

  A backup material 6 is preferably sandwiched between the glass sheets G and G ′ and the sash frame 2. As the backup material 6, it is recommended to use chloropyrene rubber or foamed polyethylene.

  In addition, as shown in FIGS. 1-3, generally the edge part of a laminated multilayer glass is the product made from aluminum which filled the desiccant 7 such as a zeolite or a silica gel in the peripheral part of a pair of plate glass G and G '. The spacer 8 is stuck and sandwiched with a butyl rubber adhesive 9, and the pair of plate glasses G and G ′ and the aluminum spacer 8 are bonded and integrated with the butyl rubber adhesive 9, and from the pair of plate glasses G and G ′ and the aluminum spacer 8. The U-shaped concave portion 10 is filled with a sealing material made of polysulfide or silicone and sealed.

  By using the structure for attaching the laminated multilayer glass of the present invention to the sash frame 2, the laminated multilayer glass in which air is sealed in the hollow layer 1 is attached to the existing sash frame 2 in which the width of the fitting groove is 18 mm or less. It became possible to obtain a glass sash that passed the sound insulation class T-3 according to JIS A4706: 2000 “Sash”. In addition, a laminated double-glazed glass in which helium is sealed in the hollow layer 1 is attached to an existing sash frame 2 having a fitting groove width of 18 mm or less to achieve a sound insulation rating T-4 according to JIS A4706: 2000 “sash”. It became possible to obtain a passing glass sash.

  Glass sashes have a frame made and adjusted in advance on flat glass including laminated glass, laminated glass, laminated laminated glass, etc., and are attached to doors such as fixed windows, movable windows, and open / close doors. A material that can be handled as a single component.

  Moreover, the standard of the sound insulation performance of a sash is described in JIS A4706: 2000 "sash". That is, in JIS A4706: 2000 “sash”, the sound insulation of the sash is divided into sound insulation grades T-1, T-2, T-3, and T-4. Sound is transmitted from one side of the sash, and the sound transmission loss of the sash is measured at each frequency defined in the JIS standard by measuring the reflection of sound by the sash and the decrease in sound pressure level due to absorption attenuation on the opposite side. In accordance with the -1 grade line, the T-2 grade line, the T-3 grade line, and the T-4 grade line, the sashes that meet the conditions described in the above JIS, that is, passed the sound insulation grade T-1 grade, respectively. , T-2 grade, T-3 grade, T-4 grade.

  FIG. 5 shows a graph of a sound insulation rating line described in JIS A4706: 2000 “Sash”.

In JIS A4706: 2000 “Sash”, when it conforms to either of the following a) or b), it is a grade represented by the grade line shown in FIG.
a) The sound transmission loss at 16 points of 125 Hz to 4000 Hz is all higher than the corresponding sound insulation grade line. In addition, when the total of the values below the corresponding sound insulation grade line in each frequency band is 3 dB or less, the sound insulation grade is assumed.
b) In all frequency bands, the sound transmission loss is converted by the formula (1), and the converted value (six points) exceeds the corresponding sound insulation grade line.

  However, 125 Hz is converted to 160 Hz, and 4000 Hz is converted to 3150 Hz. The converted value is rounded to an integer, and if the sum of values below the corresponding sound insulation grade line in each frequency band of the converted value is 3 dB or less, the sound insulation grade is assumed.

As shown in FIG. 5, in the sound insulation grade line due to the sound transmission loss, the sound insulation performance of 500 Hz or more, the sound insulation grade T-3 grade is 35 dB or more, and the sound insulation grade T-4 grade is 40 dB or more. To pass the sound insulation grades T-3 and T-4. The sound transmission loss needs to be substantially higher than the aforementioned grading line. The decibel (dB) is a unit of the sound pressure level, and the sound pressure level is a dimensionless amount representing the pressure variation logarithmically from the atmospheric pressure due to the sound and is expressed in decibel (dB). The pressure fluctuation fluctuates 3.2 times at a sound pressure level of 10 dB. The sound pressure level is defined as 20 times the common logarithm of the ratio between the sound pressure P (unit: Pa) of a certain sound and the reference sound pressure P0 (2 × 10 ⁻⁵ Pa) which is the minimum human audible sound, It is expressed in dB.

  Moreover, although the transparent resin intermediate layer 11 of the laminated multilayer glass used in the structure for attaching the laminated multilayer glass of the present invention to the sash frame 2 may be only PVB or EVA, it further enhances the sound insulation performance. Therefore, as a transparent resin having a different chemical composition and different physical properties such as viscosity, PVB having a different monomer composition ratio and / or molecular weight is laminated, or a polyvinyl acetal resin having a different chemical structure from PVB. A transparent sound insulating intermediate film made of a triblock copolymer in which polystyrene and vinyl-polyisoprene are combined and EVA are used. It is preferable to use a sound insulating interlayer made by laminating layers. In addition, functional fine particles such as silver fine particles may be dispersed in the intermediate film for heat ray reflection.

  When used for the above-mentioned sound insulating interlayer instead of one PVB, the sound transmission loss in the frequency range of 1000 Hz to 4000 Hz is increased by about 5 dB compared to the laminated glass using only PVB, and the sound insulating performance Will improve.

  This is because the pair of glass plates constituting the laminated glass is irregularly vibrated individually by the viscous and flexible transparent resin intermediate layer 11, and the sound insulating intermediate film in which transparent resins having different viscosities are laminated. This is because the transparent resin intermediate layer 11 itself absorbs vibration energy of sound.

  Examples of the plate glass and the glass plate used in the present invention include Low-E glass having a heat ray reflective metal thin film formed on the surface thereof by means such as sputtering, and the like, glass with metal wire, glass with mesh, colored glass, tempered glass, and the like. It is done.

(Production of glass sash)
Using the structure for attaching the laminated double-glazed glass of the present invention to a sash frame, a glass sash in which air was sealed in a hollow layer or two types of glass sash in which helium was sealed in a hollow layer was produced, and the sound insulation performance was measured. The present invention is not limited to the following examples.

  Specifically, a glass sash having a structure for attaching the laminated multilayer glass to the sash frame shown in FIG. 3 was produced.

  First, glass plates G4 and G3 of FL3 (nominal thickness 3 mm, measured thickness value 2.7 mm) and glass plate G1 of FL6 (nominal thickness 6 mm, measured thickness value 5.7 mm) were prepared. The size of the glass plates G4, G3, G1 is 1480 mm × 1230 mm.

  Next, a glass plate G2 of FL4 (nominal thickness 4 mm, measured thickness 3.7 mm) was prepared. The size of the glass plate G2 is 1440 mm × 1190 mm, and when fitted into a sash frame as a laminated multilayer glass, as shown in FIG. 4, from the opening of the sash frame surrounding the edge of the laminated multilayer glass I tried to make it smaller.

  A sound insulating interlayer film having a thickness of 30 mil (0.76 mm) is sandwiched between glass plates G4 and G3 having a size of FL3 and a size of 1480 mm × 1230. It was. The end portion of the resin intermediate layer 11 made of the sound insulating interlayer is coated with a thin silicone sealant so as to prevent the sound insulating interlayer from absorbing or deteriorating.

  As the sound insulating interlayer, a sound insulating interlayer manufactured by Sekisui Chemical Co., Ltd. (trade name, S-REC Acoustic Film) was used. The sound insulating intermediate film is a sound insulating intermediate film 1 formed by laminating a transparent resin, using a sound insulating transparent resin layer as a core layer, PVB as an outer layer, and sandwiching a sound insulating transparent resin layer with PVB. It has a sandwich structure and is manufactured by three-layer extrusion. When the sound insulating interlayer is a laminated glass resin intermediate layer 11, the sound transmission loss in the frequency range of 1000 Hz to 4000 Hz is lower than that of the laminated glass G using only ordinary PVB for the resin intermediate layer 11. It is assumed that the sound insulation performance is further improved by increasing by about 5 dB.

  Next, between the glass plate G1 of FL6 (actual measurement value of 5.7 mm) and size, 1480 mm × 1230 mm, and the glass plate G2 of FL4 (actual measurement value of thickness 3.7 mm) and size of 1440 mm × 1190 mm, A 30 mil (0.76 mm) EVA was sandwiched and welded while being heated and pressurized using a heating roller to obtain a plate glass G ′ which was a laminated glass. At this time, as shown in FIG. 4, the gap between the end face of the glass plate G1 and the end face of the glass plate G2, that is, the cutting margin was adjusted to be 20 mm evenly over the entire circumference. In order to prevent moisture absorption or alteration of the sound insulating interlayer, the end portion of the resin intermediate layer 11 made of EVA was thinly coated with a silicone sealant.

  As shown in FIG. 3, the end portion of the laminated multilayer glass is filled with zeolite as a desiccant 7 at the periphery of a pair of glass sheets G and G ′, and an aluminum spacer 8 is adhered with a butyl rubber adhesive 9. Then, the pair of glass sheets G and G ′ and the aluminum spacer 8 are bonded and integrated with the butyl rubber adhesive 9, and the U-shaped recess 10 composed of the pair of glass sheets G and G ′ and the aluminum spacer 8 is silicone. The sealing material which consists of was filled and sealed. In this manner, a glass sash was produced by attaching the multi-layer glass to the sash frame 2.

  The laminated double-glazed glass has a structure of glass plate G4 / resin intermediate layer 11 / glass plate G3 / hollow layer 1 / glass plate G1 / resin intermediate layer 11 / glass plate G2, FL3 (actual thickness measurement value 2.7 mm) / Sound insulating interlayer (thickness 0.76 mm) / FL3 (thickness measurement 2.7 mm) / hollow layer 1 (thickness 6 mm) / FL6 (thickness measurement 5.7 mm) / EVA (thickness 0.76 mm) / The configuration is FL4 (actual thickness measurement value 3.7 mm) and total thickness 22.32 mm. Two types of glass sashes were produced by using the laminated double-glazed glass having the structure described above, which is a laminated double-glazed glass in which air is sealed in the hollow layer 1 and a laminated double-glazed glass in which helium is sealed in the hollow layer 1.

  Next, when the setting block 5 made of EPDM is attached to the sash frame 2 so as to be a 1/4 position from the end of each side of the multilayer glass, the laminated multilayer glass is attached to the sash frame 2 The back-up material 6 made of polyethylene foam is arranged in the gap between the glass plate G1 and the sash frame 2 around the entire periphery of the sash frame 2 that contacts the glass plate G1 side. Next, an L-shaped metal fitting (not shown) is inserted into the corner portion of the sash frame 2 cut at 45 degrees and screwed to the sash frame 2 while fitting the ends of the laminated multilayer glass except the glass plate G2 into the sash frame 2. A glass sash was used. Thereafter, a backup material 6 made of polyethylene foam was sandwiched between the sash frame 2 and the glass plate G4. Next, an elastic material 3 made of urethane rubber is inserted into the gap between the end surface of the glass plate G2 and the sash frame 2, and the rectangular bar material of hard vinyl chloride having the same color as the sash frame 2 is hidden so that the elastic material 3 is hidden. As shown in FIG. 2, the double-sided adhesive tape was attached to the entire periphery of the outer edge of the glass plate G2.

  As shown in FIG. 3, a pair of plate glasses G and G ′ are spaced in parallel to have a hollow layer 1, and when the laminated multilayer glass is fitted into the glass fitting groove of the sash frame 2, the laminated multilayer glass is formed. Laminated glass is used for both of the pair of glass sheets G and G ′, and the glass sheet G1 on one hollow layer side forming the laminated glass is fitted into the glass fitting groove of the sash frame 2 to form the laminated glass, in other words, For example, the glass plate G2 on the opposite side to the hollow layer is smaller than the opening of the sash frame 2 and is not fitted in the glass fitting groove of the sash frame 2.

  The part to be fitted into the sash frame 2 of the laminated multilayer glass is glass plate G4 / resin intermediate layer 11 / glass plate G3 / hollow layer 1 / glass plate G1, FL3 (actual measured value of thickness 2.7 mm) / sound insulation. The total thickness is 17.86 mm in the configuration of an intermediate film (thickness 0.76 mm) / FL3 (actual thickness measurement value 2.7 mm) / hollow layer 1 (thickness 6 mm) / FL6 (actual thickness measurement value 5.7 mm). In addition, it is preferable to use the plate glass G and G 'whose measured value of thickness is 4.7 mm or more for the thickness of plate glass G and G' fitted to the fitting groove | channel of a sash frame for safety | security. The plate glasses G and G ′ include laminated glass.

  Moreover, the fitting allowance is 15 mm with respect to the allowance of 20 mm for the laminated multilayer glass, and the interval between the sash frame 2 and the end face of the glass plate G2 is 5 mm.

The abbreviation FL means a float glass plate continuously produced by melting and developing a glass plate raw material on a tin bath. The numerical value after the abbreviation is the nominal thickness, and the unit is mm. Nominal thickness is JIS R
3202: 1996 “Float plate glass and polished plate glass” results in the tolerances shown in Table 1.

(Sound insulation performance test)
In order to evaluate the sound insulation performance of the laminated multilayer glass, sound transmission loss was measured according to JIS A4706: 2000 “Sash”.

    Specifically, in accordance with JIS A4706: 2000 “Sash”, a sound insulation test according to JIS A 1416: 2000 “Measurement method of air sound insulation performance of building members in a laboratory” is performed, and the method described in JIS A 1416: 2000 The sound transmission loss was measured at. It is assumed that the sound transmission loss measurement values are the judgment criteria described in the above-mentioned JIS A4706: 2000 “Sash”, and “a) the sound transmission loss at 16 points of 125 Hz to 4000 Hz all exceed the corresponding sound insulation grade line. In addition, if the sum of the values below the corresponding sound insulation grade line in each frequency band is 3 dB or less, the sound insulation grade is assumed. ”“ B) In all frequency bands, the sound transmission loss is converted by the formula (1). , The converted value (six points) exceeds the corresponding sound insulation grade line. ”On the other hand, if the sound insulation grade T-3 grade meets any of the criteria a) and b), the sound insulation grade T- Pass the 3rd grade.

  Table 2 shows the actual measured values of sound transmission loss at each frequency of the laminated multilayer glass sash in which air is sealed in the hollow layer.

  FIG. 6 is a graph of a sound insulation performance curve of laminated double glazing in which air is sealed in a hollow layer.

  As shown in the measured value of sound transmission loss in Table 2 and the graph of the sound insulation performance curve in FIG. 6, the laminated double glazed glass satisfies both the criteria a) and b) for the sound insulation grade T-3. When the glass sash was used, it passed the sound insulation class T-3 according to JIS A4706: 2000 “Sash”.

  In this way, by using the structure and method for attaching the laminated multi-layer glass of the present invention to the sash frame, air is sealed in the hollow layer, and when the glass sash is used, the sound insulation grade T-3 is passed. It was confirmed that the laminated glass can be attached to a sash frame in which the width of the fitting groove is 18 mm or less.

  Table 3 shows actual measurement values of sound transmission loss at each frequency of the laminated multilayer glass sash in which helium is sealed in the hollow layer.

  FIG. 7 is a graph of a sound insulation performance curve of laminated double glazing in which helium is sealed in a hollow layer.

  As shown in the measured value of sound transmission loss in Table 3 and the sound insulation performance curve in FIG. 7, the laminated double-glazed glass in which helium is sealed in the hollow layer has the above-mentioned criteria a) and b for the sound insulation grade T-3. ), And passed a sound insulation grade T-4 according to JIS A4706: 2000 “sash”.

  In this way, by using the structure and method for attaching the laminated multilayer glass of the present invention to the sash frame, helium is enclosed in the hollow layer, and when the glass sash is used, the sound insulation grade T-4 grade is passed. It was confirmed that the laminated glass can be attached to a sash frame in which the width of the fitting groove is 18 mm or less.

It is an expanded sectional view of the principal part of an example of the attachment structure to the sash frame of the laminated | multilayer glass of this invention. It is an expanded sectional view of the principal part of an example of the attachment structure to the sash frame of the laminated | multilayer glass of this invention. It is an expanded sectional view of the principal part of an example of the attachment structure to the sash frame of the laminated | multilayer glass of this invention. It is a front view of the laminated multilayer glass used for this invention. It is a graph of the sound insulation grade line described in JIS A4706: 2000 "sash". It is a graph of the sound insulation performance curve of the laminated multilayer glass which enclosed air in the hollow layer. It is a graph of the sound insulation performance curve of the laminated multilayer glass which sealed helium in the hollow layer.

G, G 'Plate glass G1, G2, G3, G4 Glass plate 1 Hollow layer 2 Sash frame 3 Elastic body 4 Blindfold 5 Setting block 6 Backup material 7 Desiccant 8 Aluminum spacer 9 Butyl rubber adhesive 10 Recess 11 Transparent resin middle layer

Claims (10)

A pair of plate glasses are spaced in parallel, end portions are sealed, a hollow layer is provided between the pair of plate glasses, and at least one side of the pair of plate glasses is laminated glass using a laminated glass sash frame The mounting structure of the laminated double-glazed glass to the sash frame when fitted in the glass fitting groove of
The glass plate on the hollow layer side that forms the laminated glass is fitted into the glass fitting groove of the sash frame,
At least one outer glass plate forming the laminated glass is smaller than the opening of the sash frame, and is not fitted in the glass fitting groove of the sash frame, and the structure for attaching laminated laminated glass to the sash frame . The structure for attaching laminated glass to a sash frame according to claim 1, wherein laminated glass made of laminated glass is used for both of the pair of plate glasses. The gap between at least one outer glass plate end face forming the laminated glass and the sash frame is 3 mm or more and 25 mm or less, and an elastic body is sandwiched between the glass plate end face and the sash frame. A structure for attaching the laminated multi-layer glass according to claim 1 or 2 to a sash frame. 4. An at least one outer glass plate peripheral edge forming a laminated glass is provided with a gap between the glass plate end face and the sash frame and an elastic blindfold sandwiched between the gaps. The attachment structure to the sash frame of the laminated | multilayer glass of any one of these. A laminated multi-layer glass plate comprising a pair of plate glasses spaced in parallel and sealed at an end, and provided with a hollow layer between the pair of plate glasses, and using a laminated glass plate on at least one side of the pair of plate glasses. A method of attaching the laminated multi-layer glass to the sash frame when fitted in the glass fitting groove of the sash frame,
Insert the glass plate on the hollow layer side that forms the laminated glass into the glass fitting groove of the sash frame,
A method for attaching laminated multi-layer glass to a sash frame, wherein at least one outer glass plate forming the laminated glass is smaller than an opening of the sash frame and is not fitted into a glass fitting groove of the sash frame. The method for attaching laminated glass to a sash frame according to claim 5, wherein laminated glass made of laminated glass is used for both of the pair of glass sheets. A multi-layer glass is attached to a sash frame having a fitting groove width of 18 mm or less using the structure for attaching a laminated multi-layer glass to a sash frame according to any one of claims 1 to 4. A glass sash characterized by passing a sound insulation class T-3 or higher according to A4706: 2000. A laminated structure in which air is enclosed in a hollow layer in a sash frame in which the width of the fitting groove is 18 mm or less, using the structure for attaching a laminated multi-layer glass to a sash frame according to any one of claims 1 to 4. A glass sash comprising a double-layer glass and passing a sound insulation class T-3 according to JIS A4706: 2000. A laminated structure in which helium is enclosed in a hollow frame using a sash frame in which the width of the fitting groove is 18 mm or less, using the structure for attaching the laminated multilayer glass to the sash frame according to any one of claims 1 to 4. A glass sash comprising a double-layer glass and passing a sound insulation class T-4 according to JIS A4706: 2000. The glass sash according to any one of claims 7 to 9, wherein the glass sash is used for laminated multi-layer glass, and a transparent resin intermediate film of laminated glass in which a glass plate is bonded and integrated with a transparent resin intermediate film. And a glass sash characterized by using a sound insulating interlayer.

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