JP3099618U - Elevating reverberation time adjustment system - Google Patents

Abstract

In a conventional reverberation time adjusting mechanism, a wall surface or a ceiling surface of a seat is directly used for adjusting a reverberation time. Therefore, a design in a seat is restricted, and a mechanism is complicated, and it is difficult to significantly adjust a reverberation time. .
A sound absorbing curtain is hung on a pipe that moves up and down along the guide rail, and the sound absorbing curtain is folded and extended by a motor. Also, a plurality of sound absorbing curtains are provided, each of which can be independently folded and stretched, and can be stopped at any position. A metal louvered finishing surface is provided at the bottom of the sound absorbing curtain so that the sound absorbing curtain is not directly visible from the audience.
[Selection diagram] Fig. 1

Description

The present invention relates to a mechanism for adjusting the reverberation time of a multipurpose hall.

Conventionally, the adjustment of reverberation time in a multipurpose hall has been performed by adjusting a sound absorbing area by rotating or sliding a part of a wall surface or a ceiling surface of a guest seat.

In the conventional reverberation time adjustment mechanism, the wall surface and ceiling surface of the seat were used directly for the adjustment of the reverberation time, so the design in the seat was restricted, and the mechanism was complicated, and it was difficult to largely adjust the reverberation time.

Means for solving the invention

A guide rail is installed on the ceiling surface in the hall, a sound absorbing curtain is hung on a pipe that moves up and down along the guide rail, and the sound absorbing curtain is folded or extended by a motor. Also, a plurality of sound absorbing curtains are provided, each of which can be independently folded and stretched, and can be stopped at any position. At the lower part of the sound-absorbing curtain, a finished surface made of a metal louver is provided.

The effect of the invention

Since the large-area sound-absorbing surface can be finely varied by a simple mechanism, it is possible to set the reverberation time corresponding to a wide range of purposes from classical concerts to jazz concerts and conferences.

In the absence of a reverberation time adjustment system, an acoustically desirable shape (such as a diffusely reflecting ceiling surface made of a polycylinder) is created, and a reverberation adjustment system is installed on the ceiling surface.

This was held at the Miharu Hall, Mahora Hall.

It is sectional drawing of a reverberation time adjustment system. It is a relation diagram of a sound absorbing curtain and a louver. It is a folding stroke figure of a sound absorbing curtain.

Explanation of reference numerals

DESCRIPTION OF REFERENCE NUMERALS 1 sound absorbing curtain in an extended state 2 sound absorbing curtain in a folded state 3 guide rail 4 curtain opening / closing motor 5 weight 6 metal louver 7 maintenance stairs 8 side pulley 9 reflective ceiling surface 10 original pulley

Claims (3)

An elevating reverberation time adjustment system, in which a guide rail is installed on the ceiling in the hall, a sound absorbing curtain is hung on a pipe that moves up and down along the guide rail, and the sound absorbing curtain can be easily folded and extended by a motor. A vertically adjustable reverberation time adjustment, characterized in that a large sound absorption area can be varied without destroying the design in the passenger seat by providing a metal louver finishing surface below the sound absorbing curtain according to claim 1. system. A plurality of sound-absorbing curtains according to claim 1 are installed, each of which can be independently folded and unfolded, and can be stopped at any position to allow fine adjustment of reverberation time. Elevating reverberation time adjustment system.

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