Patent ID: 6173806
Filing Date: 2001-01-16
Classification: E01F,E04B,G10K

Abstract:
A muffling panel of lightweight construction, having high muffling and sound-absorbing properties in a relatively low frequency band area, which comprises,(a) two opposing diaphragms;(b) a frame body for affixing these diaphragms; and(c) a mechanical type opposite phase vibration transmitting mechanism for linking these diaphragms so they communicate with one another,wherein said vibration transmitting mechanism is constituted so as to transmit a vibration of a diaphragm of the one side, which vibrates upon receiving a sound, to a diaphragm of the other side by mechanically changing same to an opposite (reverse) phase vibration to cause the diaphragm of the other side to displace inward or outward, and vibrate simultaneously with the diaphragm of the one side in accordance with original sound vibration energy.