| 摘要 |
In a roller blind (4) which, when fully or partly drawn down, has its vertical edge portions retained in slits (10), possibly in a lightproof way, said edge portions are provided with channels or closed grooves (11) threaded on guide pins (12) extending freely upwards from the lower end of the slits (10) till a slight distance from the roller (5) of the blind. Said guide pins (12) are located in a relatively wide portion of the slit (10) to prevent the blind (4) from being pulled laterally out of the slits (10). To allow smooth winding of the blind (4) on its roller (5) this latter may have a reduced thickness at its ends, thus accommodating the increased thickness of the blind (4) caused by the channels (11). |
