Parasol or umbrella fixed to eccentric post

摘要

The cover (1) of the parasol is on a frame formed of ribs (7) that are articulated on a central upper nut (5). This is on a hollow tube (6) fixed to an eccentric post by a pole (14). Counter-ribs (9) are articulated on a lower central nut (8). The lower nut has a vertical rod (10) whose diameter is less than the diameter of the tube and penetrates into the tube. The nut is suspended from a cord (11) which passes through the tube and posts and is rolled on a drum by turning a handle (12) on the eccentric post.