JPH07919B2 - Variable acoustic partition structure for halls - Google Patents

Description

The present invention relates to a variable acoustic partition structure for halls.

(Prior Art) In a theater, a hall, etc. (hereinafter referred to as a hall),
In addition to its original purpose of use, various events are often held. Therefore, in a conventional hall, an acoustic variable device is fixedly or detachably attached to the wall surface in the hall so that the acoustic effect in the hall can be changed according to a performance or an event.

(Problems to be Solved by the Invention) However, in a conventional acoustic variable device, a part of a wall is provided with an acoustic control plate having one surface having a sound reflecting function and the other surface having a sound absorbing function. , As the structure is such that one surface or the other surface is exposed, as necessary.
There is a problem that the degree of sound, that is, the reverberation time can be changed only in two steps, and the reverberation time may not be appropriate depending on the performance.

Therefore, an object of the present invention is to provide an acoustic variable partition structure for a hall, which can change the reverberation time in the hall almost continuously.

(Means for Solving the Problem) The acoustic variable partition structure for a hall according to the present invention includes an acoustic variable partition that is formed of an acoustic control member and divides the passenger seat portion of the hall in the front-rear direction. It is characterized in that it can be moved continuously in the front-back direction.

The acoustic control member is formed of an acoustic reflecting member or a sound absorbing member. Further, it is desirable that the vertical width of the acoustically variable partition be adjustable.

(Operation and Effect of the Invention) In the acoustic variable partition structure for a hall of the present invention, since the acoustic variable partition can be installed at an appropriate position in the front-rear direction of the passenger seat portion of the hall, a hall related to sound, that is, reverberation. The inner space volume can be set continuously variable, so that the optimum sound effect, that is, reverberation time, can be set for a performance performed in a hall, for example, a play, pops, classical music, opera, or the like.

(Example) Hereinafter, an acoustic variable partition structure for a hall according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a front-rear cross-sectional view of a hall incorporating an acoustically variable partition structure according to an embodiment of the present invention. In this figure, reference numeral 1 indicates the interior of the hall.

This hall room 1 has a stage part 2 which is the front part.
And a passenger seat portion 3 which is a rear portion thereof.
The stage portion 2 is provided with a stage 4, and the audience seat portion 3 is provided with consecutive audience seats behind the stage 4.

At least on the side of the upper part of the passenger seat portion 3, for example, as shown in FIG.
A plurality of guide rails 5 extending in the front-back direction are provided. The number of rails 5 is selected according to the size of the width inside the hall. An acoustic variable partition 10 is provided on the rail 5 so as to be movable along the rail 5.

The acoustic variable partition 10 is provided on each rail 5 and is a moving body arranged in a row in the lateral direction of the hall room 1.
Equipped with 11. Although not shown in detail, each moving body 11 can move along the rail 5 and can be moved to the rail 5 by a driving mechanism 12 including a motor, a gear and the like incorporated therein. It is designed to be moved along. The moving body 11 is provided with bearings (not shown), and a winding shaft for winding and unwinding a flexible and long acoustic control member 13 such as cloth on these bearings. 14 is rotatably supported at both ends thereof. The winding shaft 14 is rotationally driven by a motor 15 via a gear train (not shown) or the like. The acoustic control member 13 may be a sound absorbing material such as the above cloth, or an acoustic reflecting material made of an appropriate material.

A control device 16 including a microcomputer or the like is connected to the plurality of drive mechanisms 12 and the motor 15. This control device 16 is provided in the storage unit 17 of the hall of the acoustic variable partition 10 which realizes an optimal acoustic effect, that is, a reverberation time, which is optimally performed in plays, pops, classical music, opera, etc. Data about the position in the front-rear direction and the width in the vertical direction is stored. Further, an operation panel 19 having a plurality of operation keys 18 for instructing each of the above performances is connected to the control device 16.

Next, the operation of the variable acoustic partition 10 according to the embodiment of the present invention having the above configuration will be described.

For this operation, first, the operation keys on the operation panel 19
Select 18 to operate, and instruct the performance at that time. In this way, when the program is instructed, the control device 16 reads data from the storage unit 17 regarding the longitudinal position and the vertical width of the hall of the acoustic variable partition 10 corresponding to the program. Then, the plurality of drive mechanisms 12 and the motor 15 are operated according to this data, and the moving body 11 is moved along the rail 5 (at this time, the plurality of drive mechanisms 12 are operated in synchronization, The movable body 11 is moved while being aligned in the width direction of the hole), and by rotating the winding width 14, the acoustic variable partition 10 is moved.
The longitudinal position and the vertical width of the hall are set to predetermined values, thus realizing the optimum acoustic effect, that is, the reverberation time, for the performance of plays, pops, classical music, opera and the like.

In the above description of the operation, the reverberation time is controlled by adjusting both the front-rear direction position and the vertical width of the acoustic variable partition 10, but only the front-rear direction position is controlled. It may be adjusted to control the reverberation time. Further, in the above-described embodiment, the acoustic variable member is configured as a type in which a flexible and long material such as cloth is wound and rewound, but it is shown in FIGS. 3 (a) and 3 (b). As described above, the bellows-shaped member can be moved or changed between the folding position and the unfolding position, and the overlapping position and the unfolding position can be changed as shown in FIGS. 4 (a) and 4 (b). It may be in the form of a screen that can be moved or changed between.

As described above, according to the acoustic variable partition structure of the present invention, the reverberation time can be continuously changed, and thereby the optimum reverberation time can be set for each performance.

[Brief description of drawings]

FIG. 1 is a front-rear cross-sectional view of a hole incorporating an acoustically variable partition structure according to an embodiment of the present invention, FIG. 2 is a perspective view of the acoustically variable partition structure, and FIGS. 3 (a) and 3 (b) are FIGS. 4A and 4B show modified examples of the acoustic control member in the acoustic variable partition structure in a folded position and an expanded position, and FIGS. 4A and 4B show other modified examples of the acoustic control member in the acoustic variable partition structure. It is the figure which showed with the overlapping position and the development position. 1 …… Hall room 5 …… Indoor rail 10 …… Sound variable partition 11 …… Mobile unit 12 …… Driving mechanism 13 …… Sound control member 14 …… Rolling shaft 15 …… Motor

Claims (4)

[Claims] 1. An acoustic control member is provided with an acoustically variable partition which divides a passenger seat portion of the hall in the longitudinal direction, and the acoustically variable partition is continuously movable in the longitudinal direction of the hall. A variable acoustic partition structure for the hall. 2. The acoustic variable partition structure for a hall according to claim 1, wherein the acoustic control member is an acoustic reflection member. 3. The acoustic variable partition structure for a hall according to claim 1, wherein the acoustic control member is a sound absorbing member. 4. The variable acoustic partition has an adjustable width in the vertical direction.
The acoustic variable partition structure for a hall according to any one of items 1 to 3.