摘要 |
Novelty: A mechanism allowing the 134.2 deg. clockwise and anticlockwise rotation of all-shape slats of pergolas, blinds and shutters is disclosed. Constitution: The base (1), the cap (2), the gear (3), the gear-rack (4), the spindle (5), and the security snap-action means (6) adapted to the cap (2) enclosing the invented mechanism. Advantages: Compared to the previous state of art using an external difficult-to-install anti-aesthetic rotation lever/external rod, the invention offers an aesthetic mechanism which can be easily installed by non-specialized technicians (the invented mechanism is hidden in a profile); furthermore, the invented mechanism provides to closed pergolas, blinds and shutters absolute security against weather phenomena. |