| 摘要 |
<p>An open-ended opaque sleeve (10) is frictionally mounted on a conventional sun visor (12). The sleeve is manufactured, preferably by extrusion, as a tubular structure of polypropylene material with an elongated cross-section conforming to the geometry of a conventional sun visor. The sleeve is about as long as the sun visor for which it is intended and is sufficiently large to sheathe it. The sleeve is mounted simply by sliding it over the sun visor as a removable attachment. The inward curvature of the sleeve's sides that results from the manufacturing process provides a resilient frictional engagement of the sleeve with the sun visor which permits its extension and retraction along the visor's longitudinal direction as needed for adjustable use. The material used for the sleeve can be selected in various grades of opacity. In addition, this extendible attachment can be used to carry advertisements and other commercial insignia.</p> |
