JPH0425451Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Industrial application field] This invention relates to an acoustic panel that creates an ideal acoustic space in a room, and makes it easier to adjust the acoustic characteristics compared to conventional panels. .

[Conventional technology]

The acoustic panel is attached to the wall of the 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 was turned out, reflection characteristics were obtained.

Another acoustic panel whose acoustic characteristics can be changed is the one described in the specification of Japanese Utility Model Application No. 60-33204, which is shown in an exploded view in FIG.

The acoustic panel 30 in FIG.
A plywood board 34 is attached to one side of the board, and the periphery thereof is supported by a frame 36 to form an acoustic panel section 38. This acoustic panel portion 38 is entirely covered with a decorative cloth 40 made into a cylindrical shape using elastic jersey cloth or the like. Acoustic panel section 38
An upper cross fixing member 46 is fitted into the upper part of the ornamental cloth 40 to fix the upper part of the decorative cloth 40. Also,
A lower cross fixing member 5 is attached to the lower part of the acoustic panel 38.
2 is fitted to fix the lower part of the decorative cloth 52. upper and lower cross fixing members 46,
Convex portions 50 and 56 are formed on 52 and are adapted to be removably fitted into a mounting sash attached to a wall of a room. If you place it on the wall with the glass wool 32 side facing up, it will have sound absorption properties, and the plywood 3
If it is placed on a wall with the 4th side facing up, it will have reflective properties.

[Problem that the invention attempts to solve]

The conventional acoustic panels shown in FIGS. 2 and 3 had the disadvantage that the entire acoustic panel had to be turned over to change its acoustic characteristics, which was time-consuming. Furthermore, since the entire acoustic panel is turned over, the acoustic characteristics change greatly at once, making it impossible to finely adjust the acoustic characteristics.

This invention aims to solve the drawbacks of the conventional techniques and provide an acoustic panel whose acoustic characteristics can be easily and subtly changed.

[Means for solving problems]

This idea consists of a sound-absorbing panel, a plurality of hinged doors arranged vertically and horizontally in front of the sound-absorbing panel, each of which can be rotated, and whose opening degree is adjusted depending on the angle of rotation, and these multiple hinged doors. is divided into a plurality of groups at least in the vertical direction, and interlocking means for interlocking and rotating these swing doors for each group are integrally assembled by a frame, and a room is provided on each upper and lower side of the frame. An engaging portion is formed that engages with a sash provided on the wall surface.

[Effect]

According to the solution of this invention, the acoustic characteristics can be easily and subtly changed by changing the opening degree of the hinged door. Additionally, since the opening degree of the hinged doors can be adjusted for each group, acoustic characteristics can be set even more delicately. In particular, in this invention, since groups are formed that are divided at least vertically, it is possible to finely adjust the acoustic characteristics in the vertical direction with a single acoustic panel, and Compared to having to arrange multiple acoustic panels vertically to achieve the same effect with panels, construction is much easier and the finished product is also much better. In addition, since it is an integrally assembled acoustic panel, and engaging parts that engage with the sashes on the wall of the room are formed on each of the upper and lower sides of the frame,
Construction etc. are also easy. Furthermore, since it is a split door, it does not take up a large amount of front space even when opened, and can be made compact.

〔Example〕 An embodiment of this invention is shown in FIG.

The acoustic panel 60 shown in FIG. 1 has a sound absorbing plate 64 made of glass wool or the like fixed to the back side of a rectangular frame 62. There are three rods 6 on the frame 62.
8 are mounted horizontally and separated by 4
A plurality of hinged doors 66 are attached to each shelf so as to be openable and closable. This acoustic panel 60 is constructed as an integral assembly, and is attached to the wall of a room by fitting the protruding strips 70 (engaging parts) formed on each of the upper and lower sides of the frame 62 into a sash attached to the wall of the room. It will be done.

FIG. 4 shows a side sectional view of the acoustic panel 60 shown in FIG. 1, FIG. 5 shows an enlarged view of its lower part, and FIG. 6 shows a plan sectional view. As can be seen from these figures, the sound-absorbing board 64 is constructed by horizontally attaching three bars 74 to a rectangular outer frame 72, and fitting sound-absorbing material 76 such as glass wool into the four spaces separated by these bars. It is constructed integrally, and its front and back surfaces are covered with cloths 78 and 80 such as Saran, and the panels are fitted into the back surface of the acoustic panel frame 62.

The hinged door 66 is composed of a long and narrow board (made of plywood or other reflective material) in the shape of a short fence, and as shown in FIG.
Multiple pieces are lined up on each shelf in between. The hinged door 66 has pins 82 at the upper and lower ends of the left and right ends of the frame 6.
2 or a lever 68 so as to be rotatable. Further, the upper end of the left and right ends is a single interlocking member 84.
are rotatably fixed by a pin 86 and connected to each other. Therefore, when one hinged door 66 is manually rotated to the left or right, all the hinged doors 66 on that stage are always rotated to the same angle. And the hinged door 6
6 is completely closed as shown by A in FIG. 6, the entire surface of the sound absorbing plate 64 is covered by the hinged door 66, and the acoustic characteristics become the characteristics of the hinged door 66, that is, the reflection characteristics. In addition, as shown in B, the hinged door 6
When 6 is opened, the reflection characteristics change to sound absorption characteristics, and as shown by C, the sound absorption characteristics are the most when fully opened. The opening degree of the four-stage hinged door 66 can be adjusted for each stage, and the area used by the sound-absorbing plate 64 can be varied from 0 to nearly 100%, allowing subtle changes in acoustic characteristics.

FIG. 7 shows a listening room constructed using the acoustic panel 60 shown in FIG. 1.

The exterior of the listening room shown in FIG. 7 is composed of a floor section 160, a wall section 162, and a ceiling section 164. The wall portion 162 and the ceiling portion 164 have an anti-vibration structure.

A ceiling panel 166 having a sound absorbing or reflecting effect is attached to the ceiling portion 164. The ceiling section 164 has embedded lighting 168 and a sound absorbing microphone 17.
0 etc. is installed.

The side ceiling 172 is filled with glass wool 171. Furthermore, a noise-reducing ventilation fan 174, an opening adjustment material 173, etc. are provided on the side ceiling 172, and speaker opening/closing units 176 are provided at the four corners of the room.

The acoustic panel 60 shown in FIG. 1 is attached to the wall portion 162 with its upper portion supported by the upper mounting sash 110 and its lower portion supported by the lower mounting sash 102 via the height adjustment member 100.

The wall section 162 includes a soundproof door 178 and a control section (electroacoustic control, lighting control, ventilation fan control, heating and cooling control).
180, an amplifier built-in unit 192, a soundproof window unit 194, a corner member 196, an opening adjustment panel 198, etc. are installed.

According to the configuration shown in FIG. 7, desired acoustic characteristics can be obtained by adjusting the opening degree of the hinged door 66 for each stage of each acoustic panel 60.

[Example of change]

In the embodiment described above, the hinged doors 66 are arranged horizontally in an upright position and rotated around a vertical axis. It is also possible to do so. (In other words, 90°
knock down. ) [Effects of the invention] As explained above, according to this invention, there is a sound-absorbing panel, a plurality of swinging doors rotatably arranged in front of the sound-absorbing panel, and a plurality of swinging doors that can be combined as a whole or in several groups. Since the interlocking means that rotates in conjunction with each other are integrally assembled, the acoustic characteristics can be easily and subtly changed by changing the opening degree of the hinged door. Additionally, since the opening degree of the hinged doors can be adjusted for each group, acoustic characteristics can be set even more delicately. In particular, in this invention, since groups are formed that are divided at least vertically, it is possible to finely adjust the acoustic characteristics in the vertical direction with a single acoustic panel, and Compared to having to arrange multiple acoustic panels vertically to achieve the same effect with panels, construction is much easier and the finished product is also much better. Further, since the acoustic panel is an integrally assembled acoustic panel and engaging portions that engage with the sashes on the wall of the room are formed on each of the upper and lower sides of the frame, construction is easy. Furthermore, since it is a split door, it does not take up a large amount of front space even when opened, and can be made compact.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of this invention. FIG. 2 is a side sectional view showing an example of a conventional acoustic panel. FIG. 3 is an exploded perspective view showing another example of a conventional acoustic panel. FIG. 4 is a side sectional view of the acoustic panel of FIG. 1. FIG. 5 is an enlarged view of the structure at the bottom of FIG. 4. FIG. 6 is a plan sectional view of the acoustic panel of FIG. 1. 7 is a perspective view showing a listening room using the acoustic panel of FIG. 1; FIG. 60... Acoustic panel, 62... Frame, 64...
Sound absorbing plate, 66...Holding door, 70...Convex strip portion (engaging portion).

Claims (1)

[Scope of Claim for Utility Model Registration] A sound-absorbing panel; a plurality of hinged doors arranged vertically and horizontally in front of the sound-absorbing panel, each of which is rotatable, and whose opening degree is adjusted according to the rotation angle; These plurality of swinging doors are divided into a plurality of groups at least in the vertical direction, and interlocking means for interlocking and rotating the swinging doors for each group are integrally assembled by a frame, and each of the upper and lower sides of the frame An acoustic panel that has an engaging part formed on the side that engages with a sash installed on the wall of the room.