JP6948071B2 - Sound absorbing louver and sound absorbing structure using it - Google Patents

Description

The present invention relates to a sound absorbing louver and a sound absorbing structure using the louver, and more specifically, a louver used for the purpose of blindfolding, shading, ventilation, etc. in windows, stairs, etc., or for improving the design of ceilings and walls. The present invention relates to a sound absorbing louver that not only looks good but also has excellent sound absorbing performance and a sound absorbing structure using the louver.

Multiple louvers are arranged in parallel or in a grid pattern for the purpose of blindfolding, shading, ventilation, etc. in windows and stairs of public facilities, schools, hospitals, libraries, etc., or for improving the design of ceilings and walls. It is to be installed. The louver is generally constructed by fixing a louver material, which is a long aluminum material having a rectangular cross section, to a stringer or a back wall at appropriate intervals via various mounting members (Japanese Patent Laid-Open No. 2013-238064). No., Japanese Patent Application Laid-Open No. 2003-314017, Utility Model Registration No. 3171186, etc.).

Japanese Unexamined Patent Publication No. 2013-238064 Japanese Unexamined Patent Publication No. 2003-314017 Utility Model Registration No. 3171186 Gazette

As described above, the louver material is generally a long aluminum material having a rectangular cross section, and is fixed to a stringer or a back wall at appropriate intervals via various mounting members, and is blindfolded, shaded, ventilated, or. , It is installed to improve the design of the ceiling and walls, and it is nothing more than that.

Therefore, the present invention provides the louver with a sound absorbing function in addition to the original functions of blindfolding, shading, ventilation, and improving design, and in particular, an office building hall, a concert hall, a public facility, a school, a hospital, a library, etc. It is an object of the present invention to provide a sound absorbing louver suitable for use in a ceiling or a wall surface of a building where quietness is required, and a sound absorbing structure using the louver.

The invention according to claim 1 for solving the above-mentioned problems is that a substrate obtained by laminating a resin film on a thin metal plate and providing pinholes from the resin film to the metal plate over the entire surface thereof. It consists of a louver component that is bent into a shape and a fixing member that is placed inside it.
The fixing member is composed of a base member having a U-shaped cross section and being fixed to a wall surface or a top surface, and a fitting member having a U-shaped cross section and being fitted and fixed to the base member. The louver component is fitted to the fitting member in a state where the inner space is filled with a sound absorbing material, and an opening leading to the inner space is formed on the top surface of the fitting member to fit the louver. It is a sound absorbing louver characterized in that the inside of the compound member is a back air layer.

In one embodiment, locking portions that engage with each other are formed on the inner surface of the fitting member and the outer surface of the base member .

The invention according to claim 3 for solving the above problems is composed of a sound absorbing plate in which a resin film is laminated on a thin metal plate and pinholes extending from the resin film to the metal plate are provided over the entire surface. The sound absorbing structure is formed by installing the sound absorbing louver according to claim 1 or 2 on the wall surface material or the top surface material.

The sound absorbing louver according to the present invention and the sound absorbing structure using the louver have the above-mentioned configuration, and have sound absorbing functions in addition to the original functions of blindfolding, shading, ventilation, and improving design. It has an effect suitable for use on the ceiling and walls of buildings that require quietness, such as halls, concert halls, public facilities, schools, hospitals, and libraries.

It is a perspective view which shows the structure of the 1st Embodiment of the sound absorption louver which concerns on this invention (it is upside down or sideways in the actual use. The same applies hereinafter). It is a perspective view which shows the structure and use state of the 1st Embodiment of the sound absorption louver which concerns on this invention. It is a perspective view which shows the structure and use state of the 2nd Embodiment of the sound absorption louver which concerns on this invention. It is a vertical cross-sectional view which shows the structure and use state of the 2nd Embodiment of the sound absorption louver which concerns on this invention. It is a perspective view which shows the structure and use state of the 3rd Embodiment of the sound absorption louver which concerns on this invention. It is a vertical cross-sectional view which shows the structure and use state of the 3rd Embodiment of the sound absorption louver which concerns on this invention. It is a perspective view which shows the structure and use state of the 4th Embodiment of the sound absorption louver which concerns on this invention. It is a perspective view which shows the use state to the wall surface of the sound absorption louver which concerns on this invention.

Hereinafter, various embodiments for carrying out the present invention will be described with reference to the accompanying drawings. In the sound absorbing louver A according to the first embodiment shown in FIGS. 1 and 2, a thin metal plate 3 is covered with a resin film 2, and pinholes 4, 4a communicating with each other from the resin film 2 to the metal plate 3 Is formed by bending a substrate 1 which is transparent over the entire surface into a U shape. Needless to say, it is preferable that the substrate 1 has obtained the non-combustible certification (the applicant of the present application has already obtained the non-combustible certification).

The resin film 2, which is the surface layer, in other words, is exposed to the public, is printed with a wood grain pattern or any other pattern or color pattern expression. As the resin film 2, for example, a vinyl chloride resin film having a thickness of 0.17 mm or less that can be printed by gravure is used. The resin film 2 is bonded to the metal plate 3 via an adhesive layer such as an acrylic resin adhesive. As the metal plate 3, for example, a thin aluminum alloy plate having a thickness of about 0.6 mm, that is, a thin aluminum alloy plate having a thickness of 0.6 ± 0.2 mm is used.

Pinholes 4 and 4a communicating with each other are transparently formed in the resin film 2 and the metal plate 3 over the entire surface thereof. The pinholes 4 and 4a may be transparently provided before the resin film 2 and the metal plate 3 are joined to each other, and the pinholes 4 and the pinholes 4a may be joined together, but after the joining, the pinholes 4 and 4a may be joined together. The method of perforating the resin film 2 to the metal plate 3 is preferable because it is more efficient and finishes cleanly.

The pinholes 4 and 4a are inconspicuous sizes, that is, micropores having a diameter of about 1 mm, and are drilled at regular intervals (for example, 4 mm) or at random. When the pore diameter is at this level, when it is arranged on the ceiling surface, it is almost invisible regardless of the pattern or color pattern expression applied to the resin film 2 on the surface.

The sound absorbing louver A is fixed to the wall surface material (or top surface material) 31 via a fixing flange 8 formed by bending the lower end thereof outward (see FIG. 2A). When the fixing flange 8 is screwed, it is preferable to cover the substrate 1 in a strip shape in order to hide the screws. Alternatively, the sound absorbing louver A may be fixed first, and the wall surface material (or top surface material) 31 may be installed later. In one embodiment, the sound absorbing louver A is filled with the sound absorbing material 6 (see FIG. 2 (B)). As the sound absorbing material 6, a sound absorbing / insulating material such as glass wool can be used. Although not shown, the openings on both sides of the sound absorbing louver A are appropriately closed with a closing plate.

In order to further enhance the sound absorbing effect, the wall surface material (or top surface material) 31 is the same as the substrate 1 constituting the sound absorbing louver A, that is, a resin film 2 printed with an arbitrary pattern or color pattern and a thin metal plate. A sound absorbing plate having a structure in which pin holes 4 and 4a communicating with each other from the resin film 2 to the metal plate 3 are transparently formed over the entire surface may be provided with a sound absorbing function. In that case, a sound absorbing material 32 having an appropriate thickness similar to that of the sound absorbing material 6 is arranged on the back surface of the metal plate 3.

In the case of the sound absorbing louver A according to the first embodiment, the noise in the room is absorbed into the sound absorbing louver A through the pinholes 4 and 4a. When the sound absorbing louver A is filled with the sound absorbing material 6 and the wall surface material (or top surface material) 31 fixing the sound absorbing louver A is provided with the sound absorbing function, the sound absorbing effect is enhanced.

The sound absorbing louver B according to the second embodiment shown in FIGS. 3 and 4 is a combination of a louver component 10 having the same configuration as the sound absorbing louver A and a fixing member for fixing the louver to the ceiling surface or the wall surface. It is a thing. As the fixing member, a base member 11a having a U-shaped cross section is used, and the louver component 10 is placed on the base member 11a, and the side surface thereof is screwed, screwed, bonded, etc. It is fixed by fixing means. In that case, the sound absorbing material 6 may be filled in the louver constituent material 10 (see FIG. 4B). When the width of the louver component 10 is changed, the width of the base member 11a is also changed at the same time. The louver component 10 in the second embodiment is not provided with the fixing flange 8.

In the construction of the sound absorbing louver B of the second embodiment, first, the base member 11a is fixed to the wall surface material (or top surface material) 31 by screwing or the like. Next, the louver component 10 is put on the base member 11a, and the side surface of the louver component 10 is fixed to the side surface of the base member 11a by fixing means such as screwing, screwing, and bonding.

The wall surface plate (or top surface material) 31 on which the sound absorbing louver B according to the second embodiment is installed is a sound absorbing plate having the same configuration as the substrate 1, and a sound absorbing material 32 having an appropriate thickness is arranged on the back surface of the metal plate 3. It is the same as in the case of the first embodiment.

The sound absorbing louver C according to the third embodiment shown in FIGS. 5 and 6 fixes the louver component 10 and the louver component 10 to the ceiling surface or the wall surface in the same manner as the sound absorbing louver B according to the second embodiment. It is a combination of fixing members for the purpose. In this case, the fixing member has a base member 11 having a U-shaped cross section and a U-shaped cross section having a height higher than that of the base member 11, and is fitted and fixed to the base member 11. It is composed of a combination member 12.

The louver component 10 in this case is formed in a U-shape even higher than the fitting member 12. As a result, when the fitting member 12 is covered, a space portion for filling the sound absorbing material 6 is formed between the inner top surface 7 of the louver constituent member 10 and the top surface 13 of the fitting member 12. .. The size of this space can be increased or decreased by changing the height and width of the louver constituent member 10. When the width of the louver component 10 is changed, the widths of the base member 11 and the fitting member 12 are also changed at the same time.

Then, preferably, an opening 14 having an appropriate shape and size is formed on the top surface 13 of the fitting member 12, and a large number of small openings are provided, so that the inside of the fitting member 12 is covered with a back air layer (preferably. Back sound absorbing layer) 15. The size of the back air layer 15 can also be increased or decreased by changing the height and width of the fitting member 12. The louver component 10 in the third embodiment is also not provided with the fixing flange 8.

The fitting member 12 is fitted and fixed to the base member 11 so as to accommodate the base member 11 inside. Usually, a locking portion 18 corresponding to a locking portion 17 formed on the outer surface of the base member 11 is formed on the inner surface of the fitting member 12, and when the base member 11 is fitted, the locking portion 17, 18 are locked to each other. The illustrated locking members 17 and 18 are wedge-shaped claws, and as the base member 11 is fitted, the slopes of the locking members 17 and 18 slide into contact with each other, and the locked members are locked after passing the slopes (see FIG. 6). Further, the fitting member 12 is securely fixed to the base member 11 by screwing a screw 19 from the fitting member 12 into the base member 11.

When constructing the sound absorbing louver C of the third embodiment, first, the base member 11 is fixed to the wall surface material (or top surface material) 31 by screwing or the like (see the leftmost one in FIG. 5). Next, the fitting member 12 is placed on the base member 11 and then pushed in to be locked to the base member 11 via the locking members 17 and 18 and further fixed with screws 19 or the like (2 from the left in FIG. 5). See the second one). Then, the louver component 10 is put on the fitting member 12 and fixed to the fitting member 12 by using screws 20 fixing, riveting, or an adhesive or double-sided tape. Before fitting the fitting member 12 to the base member 11, the fitting member 12 and the louver component 10 may be integrated in advance.

The wall surface plate (or top surface material) 31 on which the sound absorbing louver C according to the third embodiment is installed is a sound absorbing plate having the same configuration as the substrate 1, and a sound absorbing material 32 having an appropriate thickness is arranged on the back surface of the metal plate 3. It is the same as in the case of the first and second embodiments.

Also in the case of this sound absorbing louver C, the noise in the room is absorbed by the sound absorbing material 6 in the louver material 1 through the pinholes 4 and 4a. Further, when the inside of the fitting member 12 is the back air layer 15, sound absorption in a wide frequency band up to the low frequency range becomes possible, and the sound absorption coefficient is further improved. Furthermore, when the wall surface material (or top surface material) 31 for fixing the sound absorbing louver C is provided with a sound absorbing function, the sound absorbing effect is further enhanced.

The sound absorbing louver D according to the fourth embodiment shown in FIG. 7 has a pair of fixing members including a base member 11 and a fitting member 12 in the third embodiment, and a substrate 1 having the above configuration in the shape of the fixing member. It is composed of a louver component 22 having a width corresponding to the distance between the pair of fixing members, and the louver component 22 is installed so as to straddle the pair of fixing members. Similar to the sound absorbing louver A, the louver component 22 may be provided with a fixing flange 8, or may be fixed to the fitting member 12 by a method as in the third embodiment. Further, when the fixing flange 8 is provided, it is preferable to conceal it in the same manner as in the case of the first embodiment. More preferably, the space between the pair of fixing members is filled with the sound absorbing material 6.

Although not shown, as a modification of this fourth embodiment, a configuration in which the pair of fixing members is composed of the base member 11a can be considered. That is, the configuration of the second embodiment is used.

Also in the case of this sound absorbing louver D, the noise in the room is absorbed by the sound absorbing material 6 in the louver constituent member 22 through the pinholes 4 and 4a. Further, when the wall surface material (or top surface material) 31 for fixing the louver component 22 is provided with a sound absorbing function, the sound absorbing effect is further enhanced, as in the case of each of the above embodiments.

The sound absorbing louver according to the present invention has the above-mentioned configuration and has a sound absorbing function in addition to the original functions of blindfolding, shading, ventilation, and improving design. It is suitable for use on the ceilings and walls of buildings that require quietness such as facilities, schools, hospitals, and libraries, and its industrial potential is great.

A, B, C, D Sound absorbing louver 1 Substrate 2 Resin film 3 Metal plate 4, 4a Pinhole 6 Sound absorbing material 7 Inner top surface 8 Fixing flange 10 Louver component 11, 11a Base member 12 Fitting member 13 Top surface 14 Opening 15 Back air layer
17,18 Locking member 19,20 Screw 22 Louver component 31 Wall material (top material)
32 Sound absorbing material

Claims (3)

A louver component made by laminating a resin film on a thin metal plate and having pinholes extending from the resin film to the metal plate over the entire surface is bent in a U shape and inside the louver constituent material. Consists of fixed members to be deployed
The fixing member is composed of a base member having a U-shaped cross section and being fixed to a wall surface or a top surface, and a fitting member having a U-shaped cross section and being fitted and fixed to the base member. The louver component is fitted to the fitting member in a state where the inner space is filled with a sound absorbing material, and an opening leading to the inner space is formed on the top surface of the fitting member to fit the louver. A sound absorbing louver characterized in that the inside of the compound member is a back air layer. The sound absorbing louver according to claim 1, wherein locking portions that lock each other are formed on the inner surface of the fitting member and the outer surface of the base member. The first or second aspect of the present invention is a wall surface material or a top surface material composed of a sound absorbing plate in which a resin film is laminated on a thin metal plate and pin holes that escape from the resin film to the metal plate are provided over the entire surface. Sound absorption structure made by installing the sound absorption louver.

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