Curved Panel for Acoustical Shell, Method of Manufacturing the Same, and Acoustical Shell Using the Same
First Claim
1. A curved panel for an acoustical shell comprising an upper board, an inserted mid-layer and a lower board, wherein said upper board is a laminate comprising a layer of melamine pasteboard, 2˜
- 4 layers of MDF(s) and/or plywood(s) bonded, and said lower board is a laminate comprising 2˜
4 layers of plywood(s) and/or MDF(s), and a layer of melamine pasteboard bonded, which is characterized in that;
said upper board and said lower board are secured by curing to adhesively fix the curved shape in a wood winding machine by heating means; and
said inserted mid-layer is a plastic board attached with framing members for edging on four sides thereof.
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Accused Products
Abstract
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.
14 Citations
11 Claims
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1. A curved panel for an acoustical shell comprising an upper board, an inserted mid-layer and a lower board, wherein said upper board is a laminate comprising a layer of melamine pasteboard, 2˜
- 4 layers of MDF(s) and/or plywood(s) bonded, and said lower board is a laminate comprising 2˜
4 layers of plywood(s) and/or MDF(s), and a layer of melamine pasteboard bonded, which is characterized in that;said upper board and said lower board are secured by curing to adhesively fix the curved shape in a wood winding machine by heating means; and said inserted mid-layer is a plastic board attached with framing members for edging on four sides thereof. - View Dependent Claims (2, 3, 4, 8, 9, 10)
- 4 layers of MDF(s) and/or plywood(s) bonded, and said lower board is a laminate comprising 2˜
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5. A method of manufacturing a curved panel for an acoustical shell comprising the steps of:
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a) manufacturing a laminate by bonding a sheet of melamine pasteboard, 2˜
4 sheets of plywood and/or MDF;b) securing said laminate by curing to adhesively fix the curved shape in a wood winding machine by heating means; c) assembling the curved panel by adhesively interposing a plastic board attached with framing members between upper and lower boards, wherein said upper and lower boards are prepared for said curved panel; and d) integrating said assembled curved panel in a curved shape by pressing using a hydraulic press. - View Dependent Claims (6, 7)
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11. A curved panel for an acoustical shell comprising an upper board, an inserted mid-layer and a lower board, wherein said upper board is a laminate comprising a layer of melamine pasteboard, 2˜
- 4 layers of MDF and/or plywood bonded, and said lower board is a laminate comprising 2˜
4 layers of plywood and/or MDF, and a layer of melamine pasteboard bonded, which is characterized in that;said upper board and said lower board are secured by curing to adhesively fix the curved shape in a wood winding machine by heating means; and said inserted mid-layer is a honeycomb attached with framing members for edging on four sides thereof.
- 4 layers of MDF and/or plywood bonded, and said lower board is a laminate comprising 2˜
Specification