Protective cover for electronic device

Abstract

A protective cover for an electronic device includes an upper shell, a lower shell, at least one elastic member, and a clasping member. The lower shell defines a cavity for receiving the upper shell, one open end of the cavity is a passage for the upper shell to be pulled out of or be pulled into the cavity, and the other connecting end is accommodated in the cavity. The at least one elastic member is connected between the closed end and one end of the upper shell applying a tensile force to the upper shell to pull the upper shell into the cavity of the lower shell. The clasping member is connected between the lower shell and the upper shell when the upper shell is pulled out of the cavity of the lower shell.

1 . A protective cover for an electronic device, comprising:
 an upper shell comprising a connecting end;   a lower shell defining a cavity for receiving the upper shell, the cavity comprising an open end and a closed end, wherein the open end is a passage for the upper shell to be pulled out of or be pulled into the cavity, and the connecting end is accommodated in the cavity;   at least one elastic member connected between the closed end of the cavity and the connecting end of the upper shell applying a tensile force to the upper shell to pull the upper shell into the cavity of the lower shell;   a clasping member comprising a fixing end attached to either a free end of either the upper shell or the lower shell, and a movable end capable of attaching to the other one free end of either the lower shell or the upper shell when the upper shell is pulled out of the cavity of the lower shell and forms a space with the lower shell to hold the electronic device therein.   
     
     
         2 . The protective cover as claimed in  claim 1 , wherein the shape of the cavity is corresponding to the shape of the upper shell. 
     
     
         3 . The protective cover as claimed in  claim 1 , wherein at least one protruding pin is formed at the closed end of the cavity for holding an end of each of the at least one elastic element. 
     
     
         4 . The protective cover as claimed in  claim 1 , wherein the clasping member is a buckle. 
     
     
         5 . The protective cover as claimed in  claim 1 , wherein the clasping member is a magnet. 
     
     
         6 . The protective cover as claimed in  claim 1 , wherein the at least one elastic element is coil springs. 
     
     
         7 . The protective cover as claimed in  claim 1 , wherein the at least one elastic element is elastic ropes.