| 摘要 |
<p>The present invention relates to a dual sound-absorbing system and, more specifically, to a dual sound-absorbing system installed on a dual sandwich structure composed of upper and lower panels having an excellent joining force to vary the height of the upper panel according to a volume of an interior material. The present invention is characterized by including a first folding unit formed by bending the edge of the lower panel formed lengthwise at a constant width into a U shape to form a bent portion and cramping the end of the bent portion at 180 degrees while overlapping a bent portion of another adjoining lower panel to integrate the bent portions; a fixating member fixating the upper panel while a fixating clip attached on the lateral surface of the bent portion is protruding from the interior material arranged on the top of the lower panel; and a second folding unit by bending the edge of the upper panel covering the interior material into a U shape to form a bent portion and cramping the end of the bent portion while overlapping a bent portion of adjoining another upper panel and the fixating clip is fitted into the bent portions of the lateral surface of the upper panel to integrate the bent portions.</p> |
