| 摘要 |
<p>This invention relates to folding blinds for windows and doors, comprising a number of horizontally articulated slats connected to each other by means of hinged joints which, when the blind is raised, enable the slats to automatically fold like an accordion inside a box. Each slat features a pin terminating with a wheel, which is engaged by the teeth of two cams whose rotation allows the raising and lowering of the blind.</p> |
