| 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. |
