JPS61290140A - Movable diffuser/sound absorbing body apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a movable diffuser and sound absorber device for acoustically important rooms such as music practice rooms and listening rooms.

(Prior art) In the case of relatively small acoustically important rooms such as music practice rooms and listening rooms, the room shape is rectangular and the surface is finished flat for design and other reasons. This may cause problems such as flutter echo (a phenomenon in which sound is reflected back and forth between walls) or a decrease in diffusivity.

In order to solve such acoustic problems, conventionally, rooms have been given a diffuser shape or sound-absorbing surfaces have been installed.

(Problem to be solved by the invention) However, when there are small changes in the usage of the room, such as a change in purpose, presence or absence of furniture, change in furniture arrangement, change in the positional relationship between the sound source and the sound receiving point, etc. cannot be accommodated acoustically.

(Means for Solving the Problems) The present invention was proposed to solve these problems, and includes a diffuser and a sound absorber in a guide member disposed on the wall or ceiling of the room. This invention relates to a movable diffuser and sound absorber device, characterized in that the movable diffuser and sound absorber are mounted so as to be movable and fixed at any location.

(Function) As described above, in the present invention, a guide member is disposed on the wall or ceiling of the room, and the diffuser and the sound absorber are movably fixed to the guide member at any desired location. Since the diffuser and the sound absorber are mounted on the guide member, the diffuser and the sound absorber are moved along the guide member to a location that is optimal for the acoustic characteristics such as diffusivity and reverberation time in the room, and then fixed at that location.

(Effects of the Invention) As described above, according to the present invention, the diffuser and the sound absorber can be moved and fixed at required locations along the guide members disposed on the wall and ceiling surfaces of the room, In addition, the number and arrangement method of the diffuser and sound absorber are arbitrary. Therefore, by appropriately selecting the position, number, and arrangement method of the diffuser and sound absorber, the most desirable acoustic characteristics can be obtained through room acoustic measurements and trial listening. It is possible to adjust to Further, the diffuser,
By changing the shape and sound absorption characteristics of the sound absorber,
Fine adjustments can be made.

(Example) The present invention will be described below with reference to embodiments shown in the drawings.

Guide members (1) are arranged vertically and horizontally on the wall (W) or ceiling of the room, and are composed of members with a groove-shaped cross section that opens toward the inside of the room.

(2) is a diffuser, (2a) is a sound absorber, and rods (3) appear and retract from the opening (1a) of the guide member from the back of the four corners.
) is protruded and a locking plate (
4) and a sliding plate (5) that slides on the bottom surface of the guide member (1).
), and the ammunition (6) is interposed between the
Both flanges (1b) face each other across the opening (1a) in the guide member (1) so that the locking plate (4)
The diffuser (2) and the sound absorber (2a) are each fixed to the guide member (1) by crimping the guide member (1).

Figures 6 to 11 show various shapes of the diffuser (2), and Figure 12 shows the sound absorber (2a), the inside of which is filled with a porous sound absorber (7) such as glass wool. The surface is made of a perforated plate (8) or has slits (9), and by changing the aperture ratio, the frequency characteristics of the sound absorption coefficient can be varied, such as for low-frequency absorption, high-frequency absorption, etc. It is intended to provide

Since the illustrated embodiment is configured as described above, the locking plate (4) in the diffuser (2) and the sound absorber (2a)
, the sliding plate (5) and the bullet (6) are inserted into the inner cavity of the guide member (1) from the end thereof as shown by arrow B in FIG. (2a) are respectively mounted on the guide member (1).

When moving the diffuser (2) and the sound absorber (2a), press them as shown by arrow A in FIG. 2 to move the locking plate (4) to the guide member (1). When inserted into the inner cavity, the sliding plate (5) is slid along the bottom of the guide member (1) to a desired position, and when the pressing force is released at that position, it is locked by the urging force of the bullet (6). The plate (4) is the guide member (1
), the diffuser (2) and the sound absorber (2a) are fixed to the guide member (1) by crimping between the opposing flanges with the opening (1a) in between.

In this way, the number of diffusers (2
), the sound absorber (2a) is fixed at an arbitrary position.

According to the illustrated embodiment, the diffuser (2) and the sound absorber (2a) are moved to the required locations along the guide members (1) disposed on the walls and ceiling of the room. The number and arrangement method of the diffuser (2) and sound absorber (2a) can be fixed, and the number and arrangement method of the diffuser (2) and sound absorber (2a) can be appropriately selected. ,
It is possible to adjust to the most desirable acoustic characteristics through room acoustic measurements and trial listening. Further, by changing the sound absorption characteristics of the diffuser (2) and the sound absorber (2a), fine adjustment becomes possible.

Although the present invention has been described above with reference to embodiments, it goes without saying that the present invention is not limited to such embodiments, and that various design changes can be made without departing from the spirit of the present invention. .

[Brief explanation of drawings]

Fig. 1 is a front view showing an embodiment of the movable diffuser and sound absorber device according to the present invention, Fig. 2 is a vertical cross-sectional view of the mounting portion of the diffuser and sound absorber to the guide member, and Fig. 3 is the diffuser. FIG. 4 is a front view of the guide member, and FIG. 5 is a partial front view of FIG.
- Figure V, Figure 6a, 6b, Figure 7a, 7b, Figure 8a, 8
Figure b, Figure 9a9b, Figure 103, 10b, and Figure 11.
Figures 12a and 11b are a plan view and a side view showing each embodiment of the diffuser, and Figures 12a and 12b are a partial longitudinal sectional side view and a plan view, respectively, of the sound absorber. (1)...Guide member, (2)...Diffuser, (2a)
・・・Patent attorney representing sound absorbing body: 2 people including Kaimoto Important Cultural Properties Figure 6a Figure 7a Figure 8α

Claims (1)

[Claims] On the guide member installed on the wall or ceiling of the room,
A movable diffuser/sound absorber device, characterized in that the diffuser/sound absorber is mounted so as to be movable and fixable at any location.