20080230310 | Curved Panel for Acoustical Shell, Method of Manufacturing the Same, and Acoustical Shell Using the Same - The present invention provides an acoustical shell for stage sets which is light and easily handled, which has no deformation of a curved surface for a long-period installation, in which a surface to reflect sound is broad and it is possible to prevent a resonance phenomenon due to a cavity, thereby providing an excellent efficiency of reflecting the sound, without eliminating even any small sound. A method of manufacturing the acoustical shell according to the present invention comprises making a laminate board by bonding a melamine pasteboard and 2 to 4 sheets of plywood or MDF using adhesives, securing the laminate board into a wood winding machine made in a curved surface shape and applying a high frequency heat-treatment such that a bending is fixed to form a curved shape, making a upper board and a lower board using the curved board, adhesively inserting a plastic board attached framing members for edging between the upper and lower boards to be pressed for integrating, thereby manufacturing a curved panel. Then, the upper and lower ends and the right and left side ends of the curved panel are overlaid with aluminum profiles, thereby completing the acoustical shell. | 09-25-2008 |