JPH0425452Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a structure for attaching acoustic panels such as sound-absorbing panels and reflective panels to the walls of rooms, etc., and is easier to install and remove than conventional ones. It also has improved interior design.

[Prior art] Acoustic panels are attached to the walls of a room,
It is used to set the acoustic characteristics of a room to a desired state. Conventional acoustic panels have been attached directly to walls with adhesive. However,
With such devices, once attached to the wall, they cannot be easily removed, so the drawback is that the acoustic characteristics cannot be changed.

Therefore, as a device that solved this problem and made it possible to change the acoustic characteristics, there was a device described in Japanese Utility Model Publication No. 54-4334. As shown in FIG. 2, a reflective material 11 is attached to a sound absorbing material 10, its outer periphery is supported by a frame, and a hook 1 is attached to the upper part of the frame 12.
3 to form the acoustic panel 14, and the wall 15
The acoustic panel 14 was hung from the wall 15 by fixing a hook 16 to the hook 16 and hooking the hook 13 onto the hook 16. When the sound-absorbing material 10 side was turned out, sound-absorbing characteristics were obtained, and when the reflecting material 11 side was turned out, reflection characteristics were obtained.

[Problem that the invention attempts to solve]

The mounting structure for the acoustic panel 14 shown in FIG. 2 is unstable and has the drawbacks of poor appearance, since the acoustic panel 14 is simply suspended from hooks 16 attached to the wall 15.

This invention aims to solve the drawbacks of the conventional techniques and provide an acoustic panel mounting structure that can be easily and reliably attached to a wall surface and has excellent interior design.

[Means for solving problems]

This invention is a structure in which an acoustic panel is attached to a fixed frame member fixed in a frame shape on a mounting wall surface, and the acoustic panel has an outer circumferential shape that matches the inner circumferential shape of the fixed frame member. One of the outer surfaces of the acoustic panel is provided with an engagement recess, and the other side is provided with an engagement protrusion that is elastically biased outward and is prevented from coming off to engage with the engagement recess. , the distance from the surface of the fixed frame member to the center of the engagement recess or the engagement protrusion provided on the fixed frame member is determined by the distance from the surface of the acoustic panel to the center of the engagement protrusion provided on the acoustic panel. or the distance to the center of the engaging concave portion, and by pushing the acoustic panel against the fixed frame member from the front, the engaging convex portion is retreated against the elastic biasing force. The sound panel is configured to be brought into the engagement recess, and thereafter engaged and held in the fixed frame member in a state in which the acoustic panel is projected forward with respect to the fixed frame member by the elastic biasing force of the engagement protrusion. It is.

[Effect]

According to the solution of this invention, by pushing the acoustic panel against the fixed frame member from the front, the engaging convex portion is moved backward against the elastic biasing force to reach the engaging concave portion. The acoustic panel can be engaged and held by the fixed frame member by the elastic biasing force of the engagement convex portion. Therefore, the acoustic panel can be easily and reliably attached to the fixed frame member by the engagement between the engagement protrusion and the engagement recess. The distance from the surface of the fixed frame member to the center of the engagement recess or engagement protrusion provided on the fixed frame member is the distance from the surface of the acoustic panel to the center of the engagement protrusion or engagement recess provided on the acoustic panel. Since the spacing is smaller than the distance between the two sides, the acoustic panel can be held in engagement with the fixed frame member in a state where it protrudes forward. The acoustic panel can be easily removed by pulling it toward you. Moreover, since it is not necessary to make cuts or the like for inserting fingers into the fixed frame member in order to facilitate removal, the manufacturing process is simplified. In addition, since the fixed frame member acts like a picture frame for the acoustic panel, it has excellent interior design, and can be used as a single piece in the center of the wall instead of covering the entire wall as in the past. , it looks like a painting hung on the wall, making it an excellent interior decoration.

〔Example〕

An embodiment of this invention will be described below with reference to the accompanying drawings.

An example in which an acoustic panel is attached to the wall of a room by applying this idea is shown in a schematic cross-sectional view in FIG. In FIG. 3, fixed frame members 22 are attached to the wall surface 20 of the room 11 in two stages, upper and lower. Each of these fixed frame members 22 has an acoustic panel 26
is removably fitted. A decorative surface rod 30 is attached to the lower part of the wall surface 20 via a height adjusting member 28 from the floor surface 27. Also, wall surface 2
At the corner where 0 and the ceiling surface 32 touch, there is a wall surface 20
Decorative surface bars 34 and 36 are respectively attached to the ceiling surface 30, and a side ceiling 38 is supported by these decorative surface bars 34 and 36. The inside of the side ceiling 38 is filled with a sound absorbing material 40 such as glass wool. An acoustic panel 42 is fixed to the ceiling surface 32.

FIG. 4 shows the wall surface 20 in FIG. 3 viewed from inside the room 11. Each fixed frame member 22 is constructed of a frame-like rectangular frame made of metal such as aluminum, wood, synthetic resin, etc., and is spread over the entire wall surface 20. An acoustic panel 26 having an outer circumferential shape matching the inner circumferential shape of each fixed frame member 22 is removably fitted into each fixed frame member 22 by an elastic engagement portion 44 described later.

The mounting structure of the acoustic panel 26 to the fixed frame member 22 is shown in FIG. A plaster board 46 is attached to the entire wall surface 20 with adhesive or the like for sound insulation. A base material 48 such as plywood, which serves as a fixing member for the fixed frame member 22 and the decorative surface bar 34, is disposed on the surface of the plaster board 46. This base material 48 is configured in a rectangular frame shape to match the shape of the fixed frame member 22, and is attached to the surface of the plaster board 46 by being separately fixed to a bone member behind the plaster board 46 with bolts or the like.

A rod-shaped member 50 for supporting the side ceiling 38 is attached to the base member 48 with screws 52. Eye nuts 54 are embedded in the rod-shaped member 50 at predetermined intervals, and the decorative-surface rod 34 is attached to the rod-shaped member 50 by tapping holes 34a formed on the back surface of the decorative-surface rod 34 into the protruding portions 54a. . In this way, the side ceiling 38 is supported by the bar member 50, the decorative surface bar 34, and the member 56 fixed to the top of the bar member 50. Fixed frame member 22 is fixed to base material 48 by screws 58.

The acoustic panel 26 consists of a frame 60 assembled into a rectangular shape according to the inner peripheral shape of the fixed frame member 22, the inside of which is filled with a sound absorbing material 62 such as glass wool, and one side with a reflective material such as asbestos silica board or plywood. A material 64 is attached, a nonwoven fabric 66 is attached to the other side, and a decorative jersey cloth 68 is placed on both sides. If it is attached to the wall surface 20 with the nonwoven fabric 66 side facing up, the acoustic characteristics of the room 11 will be sound absorbing,
If the reflective material 64 side is facing up, it becomes reflective. The nonwoven fabric 66 has the function of holding the sound absorbing material 62 and the sound absorbing material 62 inside through the jersey cloth 68 from the outside.
(Since glass wool is yellow, it can be seen through the jersey cloth 68). Therefore, the nonwoven fabric 66 has the same color as the jersey cloth 68.

The elastic engagement portion 44 serves to removably attach the acoustic panel 26 to the fixed frame member 22.
an engagement recess 70 configured on the fixed frame member 22 side;
The engagement convex portion 72 is formed on the side of the acoustic panel 26, and as shown in FIG. (two locations on each side).

The engagement recess 70 is formed by forming a groove on the entire inner circumference of the fixed frame member 22, or by forming a hole only in the portion where the engagement protrusion 72 engages.

The engaging protrusions 72 are attached to the upper, lower, left, and right surfaces of the outer surface of the acoustic panel 26, respectively. The structure of the engaging protrusion 72 is shown in FIG. 5 when viewed from the front side of the acoustic panel 26. This engagement convex portion 72 is
It includes a mounting plate 74 and a cylindrical portion 76 fixed to the lower surface of the mounting plate 74. The spring 7 is attached to the cylindrical portion 76.
8 and a steel ball 80 are housed therein, and the steel ball 80 is urged upward by a spring 78. A retaining hole 82 is formed in the center of the mounting plate 84 , and the upwardly biased steel ball 80 is locked in the retaining hole 82 so that the upper part of the steel ball 80 is slightly above the mounting plate 74 . held in a prominent position. Holes 84 and 86 are formed in the mounting plate 74.

On the other hand, on the outer surface of the frame 60 of the acoustic panel 26, a groove 92 and screw holes 94, 96 are formed for accommodating the engagement projection 72. Therefore,
Pass the screws 88 and 90 through the holes 84 and 86 into the screw hole 9.
4 and 96, the engaging protrusion 72 is embedded in the outer surface of the acoustic panel 26 with the steel ball 80 slightly protruding.

Therefore, when the acoustic panel 26 is attached, when the acoustic panel 26 is pushed from the front against the fixed frame member 22, the steel balls 80 of the engagement convex portion 72 move back against the elastic urging force of the spring 78. The acoustic panel 26 is fitted into the fixed frame member 22 and thereafter held by the elastic biasing force of the spring 78. In addition, when the acoustic panel 26 is fitted into the fixed frame member 22, the acoustic panel 26 protrudes slightly forward of the fixed frame member 22, so it is difficult to hook your finger on this protruding part and pull it out. Once stretched, the acoustic panel 26 can be easily removed.

As described above, according to the mounting structure of the acoustic panel 26 shown in FIG. 1, the acoustic panel 26 can be easily attached to and detached from the fixed frame member 22, so that the acoustic characteristics of the room 11 can be easily changed.

In addition, in the mounting structure shown in FIG. 1, the acoustic panel 26
Since a space 98 is formed behind the speaker, there is an effect that the bass absorption effect is particularly improved.

FIG. 6 is an enlarged view of the corner portion where the floor surface 27 and wall surface 20 shown in FIG. 3 are in contact. A base material 48 is fixed to the wall surface 20 via a plaster board 46. The fixed frame member 22 and the rod-shaped member 100 are attached to the base member 48 with screws (not shown). The rod-shaped member 100 has an onime nut 10.
2 are embedded at predetermined intervals, and the protruding portions 1
Hole 30 formed on the back side of the decorative surface bar 30 at 02a
By tapping a, the decorative surface rod 30 is attached to the rod-shaped member 100.

A metal fitting 104 having an L-shaped cross section is attached to the floor surface 27, and the height adjusting member 28 is supported between this metal fitting 104 and the surface bar 30.

Next, FIG. 7 shows an overall view of the room 11 constructed using the acoustic panels 26 described above.

An acoustic panel 42 having a sound absorbing or reflecting effect is fixed to the ceiling surface 32. An embedded lighting 110, a sound absorbing microphone 112, etc. are installed on the ceiling surface 32.

The side ceiling 38 is filled with a sound absorbing material 40 such as glass wool. Further, a noise-reducing ventilation fan 114 and the like are provided on the side ceiling 38, and speaker opening/closing units 116 are provided at the four corners of the room.

A fixed frame member 22 is attached to the wall surface 20, and acoustic panels 26 are each detachably attached. Desired acoustic characteristics can be obtained by arranging one with the sound absorbing side facing up and the other with the reflecting side facing up.

The wall surface 20 includes a soundproof door 118, a control section (electroacoustic control, lighting control,
Ventilation fan control, heating and cooling control) 12
0, a built-in amplifier unit 122, a soundproof window unit 124, etc. are installed.

[Example of change]

In the above embodiment, a case was shown in which the acoustic panels were spread over the entire wall surface, but since the fixed frame member in this invention acts like a picture frame with respect to the acoustic panels, for example, only one piece is required as shown in FIG. Even if you attach it to the wall alone, it will look like a painting hung on the wall, so it can also serve as an interior decoration.

Further, in the above embodiment, the engaging convex portion was provided on the acoustic panel side and the engaging concave portion was provided on the fixed frame member side, but conversely, the engaging convex portion was provided on the acoustic panel side and the fixed frame member side was provided with the engaging convex portion. It is also possible to provide an engaging protrusion on the member side.

Furthermore, although the engaging convex portion 72 in the above embodiment uses a ball-shaped steel ball 80, instead of the steel ball 80, a chevron-shaped one 80' shown in FIG.
Various shapes can be used, such as the semi-cylindrical shape 80'' shown in the figure.

[Effect of idea]

As explained above, according to this invention, an engaging recess is provided on either the inner surface of the fixed frame member or the outer surface of the acoustic panel, and the other is elastically biased outward and has a retainer. Since the acoustic panel is provided with an engaging protrusion that engages with the engaging recess, the acoustic panel can be easily attached to and detached from the fixed frame member, and can be reliably attached without rattling, and the acoustic characteristics can be easily changed. be. In addition, the engagement structure can be a simple structure consisting of an engagement recess and an engagement protrusion. The distance from the surface of the fixed frame member to the center of the engagement recess or engagement protrusion provided on the fixed frame member is the distance from the surface of the acoustic panel to the center of the engagement protrusion or engagement recess provided on the acoustic panel. Since the spacing is smaller than the distance between the two sides, the acoustic panel can be held in engagement with the fixed frame member in a state where it protrudes forward. The acoustic panel can be easily removed by pulling it toward you. Moreover, since it is not necessary to make cuts or the like for inserting fingers into the fixed frame member in order to facilitate removal, the manufacturing process is simplified. In addition, since the fixed frame member acts like a picture frame for the acoustic panel, it has excellent interior design, and it can be used as a single piece in the center of the wall instead of covering the entire wall as in the past. It gives the impression that it is hung on the wall, making it an excellent interior decoration.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an embodiment of this invention, and is a sectional view showing details of the wall surface portion of FIG. 3. Second
The figure is a sectional view showing a conventional acoustic panel mounting structure. FIG. 3 is a sectional view showing a schematic structure of a wall of a room to which this invention is applied. FIG. 4 is a diagram showing the wall surface of FIG. 3 viewed from the front.
FIG. 5 is an exploded sectional view showing the structure of the engaging protrusion 72. FIG. 6 is a sectional view showing details of the lower part of the wall surface in FIG. 3. FIG. 7 is a perspective view showing an example of a room to which this invention is applied. FIG. 8 is a diagram showing an example in which the acoustic panel 26 is used alone. FIGS. 9 and 10 are perspective views showing other embodiments of the engaging protrusion, respectively. 11... Room, 20... Wall surface, 22... Fixed frame member, 26... Acoustic panel, 70... Engaging recess,
72...Engagement convex portion.

Claims (1)

[Claims for Utility Model Registration] A structure in which an acoustic panel having an outer circumferential shape that matches the inner circumferential shape of the fixed frame member is attached to a fixed frame member fixed in a frame shape on a mounting wall surface, the fixed frame member an engaging recess provided on either the inner surface of the acoustic panel or the outer surface of the acoustic panel, and an engaging protrusion that is elastically biased outwardly on the other side and is prevented from coming off to engage with the engaging recess. the distance from the surface of the fixed frame member to the center of the engaging recess or the engaging protrusion provided on the fixed frame member from the surface of the acoustic panel provided on the acoustic panel; The engagement protrusion is formed to be smaller than the distance to the center of the engagement concave part, and the engagement protrusion is pushed against the elastic biasing force by pushing the acoustic panel against the fixed frame member from the front. The acoustic panel is moved backward to reach the engagement recess, and is thereafter engaged and held in the fixed frame member in a state in which the acoustic panel is projected forward with respect to the fixed frame member by the elastic biasing force of the engagement protrusion. Acoustic panel mounting structure.