| 摘要 |
The present invention relates to a lamination structure for attenuating noise and vibration through floors which includes a main panel having a plurality of ball accommodating grooves; soft balls receiving and attenuating vibratory energy transferred from the outside while being inserted into the ball accommodating grooves of the main panel, and having a physical feature different from that of the main panel; and a base panel touching a bottom surface of the main panel from a lower portion of the main panel, and supporting the soft balls toward the inner portions of the ball accommodating grooves. The present invention configured as above includes a plurality of soft balls inserted in predetermined patterns inside the main panel formed with synthetic rubber, thereby absorbing or attenuating vibration of almost all frequencies coming down from the main panel. Also, the thickness of a portion in which the soft balls are located is thicker than the thickness of other portions in the main panel, thereby inducing most loads from an upper portion to be transferred through the soft balls in order to maximize a function of the main panel, and improving an effect of blocking noise and vibration as the soft balls encounter more oscillating waves. A non-woven fabric layer containing air is disposed, thereby inducing wave energy passing through the main panel to generate destructive interference while passing the non-woven fabric layer for more certain effect on blocking noises through floors. |
