JPH041917U

JPH041917U -

Info

Publication number: JPH041917U
Application number: JP4213790U
Authority: JP
Priority date: 1990-04-20
Filing date: 1990-04-20
Publication date: 1992-01-09

Description

[Brief explanation of the drawing]

第１図はこの考案に係る室内音響調節用パネル
部材の一実施例を示す音響反射板の全閉状態の概
略的正面図、第２図は第１図−線における断
面図、第３図イ，ロはこの考案に係る室内音響調
節用パネル部材の使用状態を示す説明図、第４図
は同じく音響反射板の全開状態の概略的正面図、
第５図は第４図−線における断面図、第６図
は同じく音響反射板の全閉、全開及び半開状態吸
音率の周波数特性を示す説明図、第７図は同じく
音響反射板の全閉状態と全開状態との吸音率の差
の周波数特性を示す説明図、である。１……パネル本体、２……フレーム枠、３……
吸音素材、４……音響反射板。 Fig. 1 is a schematic front view of an acoustic reflector in a fully closed state showing an embodiment of the room acoustic adjustment panel member according to this invention, Fig. 2 is a sectional view taken along the line shown in Fig. 1, and Fig. 3 , B is an explanatory diagram showing the state of use of the room acoustic adjustment panel member according to this invention, and FIG. 4 is a schematic front view of the acoustic reflector in the fully open state.
Figure 5 is a cross-sectional view along the line shown in Figure 4, Figure 6 is an explanatory diagram showing the frequency characteristics of the sound absorption coefficient of the acoustic reflector in the fully closed, fully open, and half-open states, and Figure 7 is the same as the fully closed acoustic reflector. FIG. 2 is an explanatory diagram showing the frequency characteristics of the difference in sound absorption coefficient between the fully open state and the fully open state. 1...Panel body, 2...Frame frame, 3...
Sound absorbing material, 4...Acoustic reflecting plate.

Claims

[Scope of utility model registration request]

A panel member for controlling room acoustics, characterized in that a sound absorbing material is provided in the frame of a panel body, and a plurality of acoustic reflecting plates are provided in front of the sound absorbing material in a louver shape so that they can be opened and closed.