JP2009275458A - Acoustical panel - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an acoustical panel with excellent sound absorbency by infilling a sound absorbing material into a recess formed of a base plate and a frame material, uniformly stretching a breathable sheet thereon, and fixing it to the frame material. <P>SOLUTION: In this acoustical panel A, a frame material 2 is fixed to the periphery of the base plate 1; the sound absorbing material 3 is infilled into the recess which is formed of the base plate 1 and the frame material 2; and a peripheral edge 41 of the breathable sheet 4 for covering and closing a surface of the sound absorbing material 3 is fixed to the frame material 2. A recessed groove portion 5 is formed in the outer peripheral portion of the frame material 2; the peripheral edge 41 of the breathable sheet 4 is bent and housed in the recessed groove portion 5; and a stopper member 6 with an approximately U-shaped intrusive protrusion 61 is fitted and attached in a pinched state into the recessed groove portion 5 from thereon, so that the peripheral edge of the breathable sheet 4 can be fixed to the frame material 2. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a sound absorbing panel, and more particularly to a sound absorbing panel constructed in a building such as a general household, a hall, a hall, or a store.

  Conventionally, a sound absorbing panel is attached to a wall surface, a ceiling surface, or the like in order to enhance the acoustic effect of the building structure described above in a room. For example, when playing CDs and DVDs, more music lovers enjoy sound with a sense of presence by installing sound-absorbing panels on the walls and ceiling, preventing sound reflections and playing sound faithfully to the original sound. .

  On the other hand, with the increase in apartment houses such as condominiums in recent years, there have also been many troubles related to noise problems among residents. Therefore, in order to prevent noise from living or to prevent complaints from leaking the piano sound, Sound absorbing panels are also attached to indoor wall surfaces and ceiling surfaces.

  For example, Japanese Patent Application Laid-Open No. 9-203138 includes a first panel body in which a frame member is attached to the periphery of a substrate, and a second panel body in which a sound absorbing material is attached to the back surface of the surface material. A sound absorbing panel is disclosed in which the first panel body and the second panel body are mounted in an overlapping manner. That is, as shown in FIG. 1 of the above-mentioned patent document, the substrate is attached to the front surface of the pillar of the building with the frame material of the first panel body facing forward, and the sound absorbing material of the second panel body The attachment structure which attaches the periphery of the surface material of the 2nd panel body to the said frame material in the state which fitted between the said frame materials is shown.

Specifically, the perimeter of the perforated board, which is the surface material of the second panel, is fixed to the frame member provided on the periphery of the substrate of the first panel with bolts as shown in FIG. ing. In addition, it is described that a plywood having a large number of holes is used as the perforated board.
JP-A-9-203138

  On the other hand, in recent years, a sheet having air permeability made of woven fabric or the like is often used as the surface material. In this case, the technique described in Patent Document 1 relating to the sound-absorbing panel having a board-shaped surface material can be immediately applied. I can't say that. The present invention has been made in view of the above-mentioned background art, and its purpose is to fill a recess formed by a substrate and a frame material with a sound-absorbing material, and without sagging a sheet made of woven fabric or the like thereon. It is an object of the present invention to provide a sound-absorbing panel that can be uniformly stretched and fixed to a frame member and can be easily manufactured and has excellent sound-absorbing properties.

  In order to solve the above-mentioned problem, a sound absorbing panel according to the invention of claim 1 of the present application fixes a frame material around a substrate, fills a sound absorbing material in a recess formed by the substrate and the frame material, A sound-absorbing panel in which a breathable sheet covering and closing the surface of the sound-absorbing material is fixed to a frame member at its periphery, and a concave portion is formed on the outer periphery of the frame member. The peripheral edge is bent and stored in the concave solid portion, and a stopper member having a substantially U-shaped insertion convex portion is fitted and sandwiched between the concave solid portion and the peripheral edge of the breathable sheet is fixed to the frame member. It is characterized by.

  As said board | substrate, what consists of wood materials, such as a plywood, a medium density fiber (MDF), and a particle board, can be mention | raise | lifted, As a frame material arrange | positioned around a board | substrate, for example, a square with a width of 30-40 mm Etc. Examples of the sound absorbing material include natural fibers such as cotton and wool, synthetic fibers such as polyester, felt-like sound absorbers made of rock wool, glass wool, and foam-like sound absorbers such as urethane foam and polyethylene foam.

  As the breathable sheet, if it is a breathable sheet having a ventilation portion such as paper, cotton, non-woven fabric, wool, vinyl chloride resin, polyester, rayon, acrylic, inorganic fabric, woven fabric, etc., weave, knitted or porous, Any material can be selected.

The sound absorbing panel according to the second aspect of the present invention has a substantially U-shaped insertion convex portion and a connection piece that is connected to the insertion convex portion and engages with the rear surface side of the frame member. The invention according to claim 3 of the present application is characterized in that, in the invention according to claim 2, the stopper member has elasticity between the substantially U-shaped fitting convex part and the connecting piece engaged with the back side of the frame member. It is characterized in that it is formed integrally from a synthetic resin. As the synthetic resin, thermoplastic resins such as polypropylene, polyvinyl chloride resin, polyethylene terephthalate resin, polystyrene resin, polyethylene resin, phenol resin, urethane resin, ABS resin, and polycarbonate resin are used.

  The invention described in claim 4 of the present application is characterized in that, in the invention described in claim 1 above, the insertion corner portion of the substantially U-shaped insertion convex portion of the stopper member is chamfered so as to become an inclined surface. Yes.

  The invention described in claim 5 of the present application is characterized in that, in the invention described in claim 1, the corner of the fitting entrance of the concave portion formed on the outer peripheral portion of the frame member is chamfered.

  In the sound absorbing panel according to the first aspect of the present invention, the sound absorbing material is filled in a recess formed by the substrate and the frame material provided around the substrate, and the surface of the sound absorbing material has the peripheral edge as the frame material. The sound absorbing panel is covered with a fixed air-permeable sheet, and allows sound to be efficiently absorbed by the sound-absorbing material, through which sound is passed through a ventilation portion such as a weave, a stitch, or a hole provided in the air-permeable sheet.

  Further, a concave member is formed on the outer peripheral portion of the frame member, a peripheral member of the breathable sheet is bent and stored in the concave solid portion, and a stopper member having a substantially U-shaped insertion convex portion thereon is provided above. The peripheral edge of the breathable sheet can be easily sandwiched simply by fitting into the concave solid part. As a result, compared to the conventional case where an operator pulls the periphery of the air permeable sheet and fixes it with a tucker or stapler, the air permeable sheet is not distorted or waved and stuck evenly. It can be stretched and fixed to the frame material.

  In the sound-absorbing panel according to the second aspect of the present invention, in particular, the stopper member has a substantially U-shaped fitting convex portion and a connecting piece that is connected to the fitting convex portion and engages with the back side of the frame member. By doing so, the connecting piece is attached to the lower part of the frame material constituting the concave part and is extended in the length direction of the frame material, so that the end of the peripheral edge of the breathable sheet is clamped. In addition, the breathable sheet can be more securely fixed to the frame member in cooperation with the fitting convex portion.

  In the sound-absorbing panel according to the third aspect of the present invention, in particular, the stopper member is formed by integrally combining the substantially U-shaped fitting convex portion and the connecting piece engaged with the back side of the frame material from a synthetic resin having elasticity. Therefore, when the breathable sheet is replaced, etc., the stopper member including the insertion convex portion is elastically inserted into the concave solid portion. It can be removed from the unit and fitted with a new breathable sheet. In this way, the sound absorbing panel can be easily maintained.

  In the sound-absorbing panel according to the invention described in claim 4 of the present application, since the fitting corner of the substantially U-shaped fitting convex portion of the stopper member is chamfered so as to be an inclined surface, it is smoothly performed without facing each other. The stop member can be elastically inserted into the concave part.

  In the sound-absorbing panel according to the invention described in claim 5 of the present invention, since the corners of the recesses formed in the outer peripheral portion of the frame member are chamfered, the stop member can be smoothly stopped without facing each other. Can be elastically inserted into the concave part.

  Hereinafter, embodiments of a sound absorbing panel according to the present invention will be described in detail with reference to the drawings. FIG. 1 is an exploded explanatory view showing the schematic configuration of the sound absorbing panel A in an exploded manner. As shown in FIG. 1, the sound absorbing panel A includes a substrate 1, a frame material 2 fixed around the substrate 1, a sound absorbing material 3 filled in a recess formed by the substrate 1 and the frame material 2, and the above. The breathable sheet 4 covers and covers the surface of the sound-absorbing material 3, and the breathable sheet 4 has a vent 42 such as a weave, a stitch, or a pore as shown in FIG.

  Here, the breathable sheet 4 made of a breathable material, such as cloth or woven fabric, is freely bendable, and its peripheral edge 41 is bent and suspended on the outer peripheral surface of the frame member 2. On the other hand, a concave portion 5 is formed on the outer peripheral portion of the frame member 2, and the peripheral edge 41 of the breathable sheet 4 is deformed according to the shape of the concave solid portion 5, along the longitudinal direction of the frame member 5. It is stored in the concave part 5. The peripheral edge 41 accommodated in the concave part 5 is sandwiched and fixed to the concave part 5 by the stopper member 6 having the fitting convex part 61.

  FIG. 2 is a cross-sectional view showing a sound-absorbing panel A according to the present invention in which the peripheral edge 41 housed in the concave portion 5 is fixed by the stopper member 6, and also shows a detailed view of the main part surrounded by a circle. As shown in FIG. 2, the stopper member 6 is made of a synthetic resin having elasticity such as polypropylene, and has a substantially U-shaped fitting convex portion 61. The fitting convex portion 61 is a concave solid portion. 5, and the peripheral edge 41 of the breathable sheet 4 accommodated in the concave portion 5 is elastically clamped and fixed.

  The breathable sheet 4 with the peripheral edge 41 uniformly stretched and fixed to the left and right frame members 5 and the front and rear frame members 5 by the stopper member 6 is stretched so as to cover and cover the surface of the sound absorbing material 3 without sagging. The sound from the outside enters from the ventilation portion 42 of the breathable sheet 4 and is absorbed by the sound absorbing material 3, and thus the sound absorbing panel A exhibits its function effectively.

  On the other hand, since the stopper member 6 including the insertion convex portion 61 is integrally formed from an elastic resin, the stopper member 6 is elastically inserted into the concave solid portion 5 and is elastic when the breathable sheet 4 is replaced. By releasing the fitting, the stop member 6 can be detached from the frame member 2 detachably, and the sound absorbing panel A can be easily maintained.

  FIG. 3 is an explanatory view showing a method of stretching the breathable sheet 4 on the concave solid portion 5 provided on the outer peripheral portion of the frame member 2 in the sound absorbing panel A according to the present invention. In the form shown in FIG. 3, as shown in FIG. 3A, the fitting corner portion 611 of the U-shaped fitting convex portion 61 of the stopper member 6 is chamfered to be an inclined surface and the concave portion 5. The corner 51 of the insertion opening is also chamfered.

  First, the peripheral edge 41 of the air-permeable sheet 4 depending on the outer peripheral surface of the frame member 2 is pushed into the concave part 5 by the fitting convex part 61 of the stopper member 6. At this time, since the fitting corner portion 611 of the fitting convex portion 61 is chamfered to be an inclined surface, and the corner portion 51 of the fitting entrance of the concave solid portion 5 is chamfered, as shown in FIG. It is possible to smoothly insert the insertion convex portion 61 into the concave portion 5 without abutting against the concave portion 5. Thus, as shown in (C), the peripheral edge 41 of the breathable sheet 4 is clamped and fixed. Thus, the breathable sheet 4 covering and closing the surface of the sound absorbing material 3 has the peripheral edge 41 attached to the frame member 2. The sound absorbing panel A can be formed by being fixed.

  The breathable sheet 4 clamped and fixed to the concave portion 5 by the stopper member 6 is fixed by using adhesive or a nail such as a staple or a finish nail as necessary. FIG. 3D shows an example in which the peripheral edge 41 is fixed to the frame member 2 using staples 7.

  FIG. 4 is a cross-sectional view showing an improved example of the above-described embodiment. As shown in FIG. 4, in the improved example, the stop member 6 has an insertion convex portion 61 that fits into the concave real portion 5 and a connecting piece 62 that is connected to the fitting convex portion 61. The frame member 2 is engaged with the back surface side and extends in the length direction of the frame member 2. In this way, the connecting piece 62 is attached to the lower part of the frame member 2 constituting the concave part 5, and the end part 411 of the peripheral edge 41 of the breathable sheet 4 is sandwiched between the fitting convex part 61 and the fitting part 61. Together, the breathable sheet 4 can be stretched more reliably.

  In the embodiment described above, an example in which the fitting corner 611 above the U-shaped fitting convex portion 61 of the stopper member 6 and the corner 51 above the fitting inlet of the concave portion 5 are chamfered. As described above, any one of them may be rounded so that the corners do not collide with each other.

  Further, depending on the situation at the construction site, the fitting corner 611 below the U-shaped fitting convex portion 61 of the stopper member 6 and the corner 51 below the fitting entrance of the concave solid portion 5 may be chamfered. As described above, the present invention can be modified in design, and belongs to the technical scope of the present invention without departing from the scope of the claims.

FIG. 3 is an exploded explanatory view showing a schematic configuration of a sound absorbing panel according to the present invention in an exploded manner. The cross-sectional view which shows both the sound-absorbing panel which concerns on this invention, and the detail of the principal part. (A), (B), (C), (D) In the sound-absorbing panel according to the present invention, an explanatory view showing a method of stretching a breathable sheet on a concave part provided on an outer peripheral part of a frame member. The cross-sectional view which shows the example of improvement of embodiment of the sound absorption panel concerning this invention.

Explanation of symbols

A Sound-absorbing panel 1 according to the present invention Substrate 2 Frame material 3 Sound-absorbing material 4 Breathable sheet 41 Peripheral 411 End portion 42 Vent portion 5 Concave portion 51 Corner portion 6 Stopping member 61 Insertion convex portion 611 Insertion corner portion 62 Connecting piece 7 Staple

Claims (5)

  A frame material is fixed around the substrate, a sound absorbing material is filled in a recess formed by the substrate and the frame material, and a breathable sheet covering and closing the surface of the sound absorbing material is fixed to the frame material at its periphery. The sound absorbing panel is formed with a concave solid portion on the outer peripheral portion of the frame member, and the peripheral edge of the breathable sheet is bent and stored in the concave solid portion, and a substantially U-shaped fitting convex is formed thereon. A sound-absorbing panel formed by fitting and sandwiching a stopper member having a portion to the concave solid portion and fixing the periphery of the breathable sheet to a frame member.   The sound absorbing panel according to claim 1, wherein the stopper member has a substantially U-shaped insertion convex portion and a connecting piece connected to the insertion convex portion and engaged with the back side of the frame member.   The sound absorbing panel according to claim 2, wherein the stopper member is formed by integrally forming the substantially U-shaped fitting convex portion and the connecting piece engaged with the back side of the frame member from a synthetic resin having elasticity. .   The sound-absorbing panel according to claim 1, wherein the insertion corner portion of the substantially U-shaped insertion convex portion of the stopper member is chamfered so as to be an inclined surface.   The sound-absorbing panel according to claim 1, wherein a corner portion of an insertion opening of a concave portion formed on an outer peripheral portion of the frame member is chamfered.

Images