Umbrella structure

Abstract

An umbrella has a first resilient member provided between one inner rib and one outer support and a second resilient member received in the second linkage and secured to the secondary panel via a strip so that the operation of the secondary panel is limited.

What is claimed is:  
     
         1 . An umbrella structure comprising: 
 a shaft conjugated with a head;    a runner movably mounted on the shaft;    multiple inner ribs each having a support pivotally connected between the runner and the inner rib;    multiple first linkages each pivotally connected to one of the supports via a first pin;    multiple second linkages each pivotally connected to one of the first linkages via a second pin;    outer supports each pivotally connected to one of the second linkages via a third pin;    a first resilient member provided between one inner rib and one outer support;    a limiting plate is mounted on each of the second linkages;    multiple second resilient members each securely engaged with a corresponding one of the second linkages;    a main panel applied to cover the inner ribs, the first resilient members and outer supports and having an opening;    a secondary panel, wherein an inner face close to a center of the secondary panel is fixed to the inner ribs and an outer peripheral edge of the secondary panel is fixed to the second resilient member, the secondary panel has an area larger than that of the opening so that the secondary panel is able to cover the opening of the main panel.    
     
     
         2 . The umbrella as claimed in  claim 1 , wherein the peripheral edge of the opening is fixed to the outer supports.  
     
     
         3 . The umbrella as claimed in  claim 1 , wherein an ear is formed on the second resilient member to securely engage with one distal end of a strip and the other distal end of the strip is fixed to the peripheral edge of the secondary panel between two adjacent outer supports to limit operation of the second panel.  
     
     
         4 . The umbrella as claimed in  claim 1 , wherein the second resilient member has a slit and a hook formed on a peripheral edge of the slit, wherein the second linkage has a limiting plate received in the slit and is retained by the hook which engages a peripheral edge of the limiting edge to secure engagement between the second linkage and the second resilient member.