Frame structure of an umbrella having two layers of cover

Abstract

The invention relates to a frame structure of an umbrella having two layers of cover, which includes a main rib and a branch rib, wherein the main rib is provided with a connector for connecting with the branch rib and an upward slot, an elastic rib having an inner loop to be received in the slot and penetrated by a lateral pin on the connector that the elastic rib is elastic contact with the main rib. The elastic rib and the main rib are provided for connecting with the upper cover and the bottom cover while the frame structure will be firm and strong to resist wind and prevent from being broken.

1 . A frame structure of an umbrella having two layers of cover including a main rib and a branch rib, wherein the main rib is provided with a connector having a pair of downward ears to connect with one end of the branch rib and an upward slot, an elastic rib having an inner loop to be received in the slot and penetrated by a lateral pin on the connector that the elastic rib is elastic contact with the main rib.  
   
   
       2 . The frame structure of an umbrella having two layers as claimed in  claim 1 , wherein a ring is provided on the main rib near to the connector to keep the elastic rib a small distance from the main rib.  
   
   
       3 . The frame structure of an umbrella having two layers as claimed in  claim 1 , wherein the umbrella can be a straight umbrella or a collapsible umbrella.  
   
   
       4 . A frame structure of an umbrella having two layers of cover including a main rib and a branch rib, wherein the main rib is provided with a connector having a pair of downward ears to connect with one end of the branch rib and an upward slot, an elastic rib having an inner slider with two side rods to be received in the slot with two curve grooves.  
   
   
       5 . A frame structure of an umbrella having two layers of cover including a main rib and a branch, rib, wherein the main rib is provided with a connector having a pair of downward ears to connect with one end of the branch rib and an upward slot, an elastic rib having an inner folded end to be received in the slot and positioned by a lateral pin of the connector.