Ventilated umbrella, has open covering surface between upper and lower caps, providing multiple ventilation openings

摘要

When the frame (10) of the umbrella is completely opened, a tie ring (32) is displaced downwards automatically due to the pulling force of cords (40), so that a pressing spring (33) in placed in a tensioned position. The upper edge part (211) of the lower cap (21) is spread in the direction of the shaft (11) under the fulling force of the cords. The covering surface (22) is open between the upper and lower caps (20,21), providing multiple ventilation openings.