Shoe sole having heel cushioning device

Abstract

A shoe sole includes a resilient cushioning device engaged in the heel portion for cushioning heel portions of users, the resilient cushioning device includes two frame members cross to each other to form an X-shape structure as seen from side portion and each having an inclined structure and each having a front portion and a rear portion. Each of the frame members has a portion suspended in the shoe sole, to provide a resilience to cushion and support the heel portions of the users. One of the frame members includes one or more arms to support the other frame member. One or more resilient members may further be used to cushion the frame members.

1 . A shoe sole comprising: 
 a heel portion and a front portion, and    a resilient cushioning device engaged in said heel portion of said shoe sole for cushioning heel portions of users,    said resilient cushioning device including a first and a second frame members cross to each other to form an X-shape structure as seen from side portion of said resilient cushioning device, said first frame member and said second frame member each including an inclined structure having a front portion and a rear portion, said rear portion of said first frame member being located above said rear portion of said second frame member, and said front portion of said first frame member being located below said front portion of said second frame member, and    said rear portion of said first frame member and said front portion of said second frame member being suspended in said shoe sole, and including a resilience to cushion and support the heel portions of the users.    
     
     
         2 . The shoe sole as claimed in  claim 1 , wherein said front portion of said second frame member includes an opening formed therein, said front portion of said first frame member is extended through said opening of said second frame member.  
     
     
         3 . The shoe sole as claimed in  claim 2 , wherein said front portion of said second frame member includes two legs and a bar to form and define said opening thereof.  
     
     
         4 . The shoe sole as claimed in  claim 1 , wherein said second frame member includes at least one arm extended therefrom and engaged with said rear portion of said first frame member, to support said rear portion of said first frame member.  
     
     
         5 . The shoe sole as claimed in  claim 1 , wherein said at least one arm of said second frame member includes at least one projection extended therefrom, said rear portion of said first frame member includes at least one cavity formed therein to receive said at least one projection of said at least one arm of said second frame member.  
     
     
         6 . The shoe sole as claimed in  claim 1  further comprising a resilient member engaged between said rear portions of said first frame member and said second frame member, to cushion said rear portion of said first frame member.  
     
     
         7 . The shoe sole as claimed in  claim 1  further comprising a resilient member engaged between said front portions of said first frame member and said second frame member, to cushion said front portion of said second frame member.  
     
     
         8 . The shoe sole as claimed in  claim 7 , wherein said front portion of said first frame member includes a seat provided thereon to receive and support said resilient member.