| 摘要 |
<p>The blind consists of a screen (13) of a supple material with one edge (131) fixed to a draw bar (14) and the opposite edge (132) attached to a truncated conical roller, being embedded in its molded or over-molded surface. The blind consists of a screen (13) of a supple material with one edge (131) fixed to a draw bar (14) and the opposite edge (132) attached to a truncated conical roller, being embedded in its molded or over-molded surface. The roller is made, for example, from a cylindrical metal tube (11) overmolded with a truncated conical layer (12) of a material having a hardness of about 70 Shore A, requiring a pressure of some 15 bars and/or a temperature of about 80 degrees that does not damage the supple screen. The mold has a slot in it to receive a portion of the screen, which is fastened to the roller with its edge forming an angle of about 90 degrees to a roller surface tangent.</p> |
