| 摘要 |
<p>An acoustic enclosure (10) has interconnected sound reducing sheets forming a substantially rectangular structure which is configured to house a computer printer or other noise generating article. A rigid thermoplastic hinged sheet (22) having a uniform non-pinched bend (52) is provided as a window for the enclosure. Method and apparatus for producing such bends comprise use of sequentially initiated heating of the bottom (wide band continuous band heating to softening point) and then top of the sheet (narrow band focussed heating to a narrow bend) to make the sheet so bendable, The bent sheet serves a supplemental panel extension to afford view zones of the enclosure. The various (side type, rear type) panels, with and without such sheet extensions, are also usable in the non-enclosing uses, including use as walls or room-dividers. Electrical wiring and fixtures and panel surface mounted heaters can be accommodated by the allowable constructions of the panels. The thin outer stratum can be replaced by an adhesive.</p> |
