| 摘要 |
A muffling wall of a new-type lightweight construction having a function of effectively isolating sounds in low and medium sound range and high muffling characteristics in a relatively low frequency band area, and comprising at least two facing diaphragms, a frame body for fixing of the diaphragms, and a mechanical type opposite phase vibration transmitting mechanism for connection of the diaphragms. The vibration transmitting mechanism mechanically converts vibration of one of the diaphgrams, which receives sounds to vibrate, into opposite phase vibrations to transmit the same to the other of the diaphragms such that vibrational energy of the original sound causes the other of the diaphragms to displace inward or outward and vibrate simultaneously with one of the diaphragms. <IMAGE> |
