Portable stretching device receivable as a case

Abstract

An exercise device for conducting push and pull type exercises includes a non-track slippery member for being moved toward and away from a stationery member. A spring biasing member may bias the slipper member toward the stationery member, and may couple the members together when the members are superposed together to form a compact case structure. The spring biasing member preferably includes an endless loop structure received in grooves of the members. The stationery member has one or more anti-slip pads, and the slippery member has a slippery layer.

I claim:  
     
         1 . An exercise device for conducting push and pull type exercises, said exercise device comprising: 
 a non-track stationery member for being disposed and supported on a supporting ground, and for supporting user,    a non-track slippery member for slipping on the supporting ground, and for being moved toward and away from said stationery member, and    a spring biasing member coupled between said stationery member and said slippery member for biasing said slipper member toward said stationery member,    said stationery member and said slippery member being superposable together to form a case structure, and said spring biasing member being coupled between said stationery member and said slippery member for carrying said stationery member and said slippery member when said stationery member and said slippery member are superposed together.    
     
     
         2 . The exercise device according to  claim 1 , wherein said stationery member and said slippery member each includes a groove formed therein for receiving said spring biasing member.  
     
     
         3 . The exercise device according to  claim 1 , wherein said spring biasing member includes an endless loop structure received in said grooves of said stationery member and said slippery member.  
     
     
         4 . The exercise device according to  claim 3 , wherein said grooves of said stationery member and said slippery member each includes a semi-circular shape for receiving said spring biasing member.  
     
     
         5 . The exercise device according to  claim 3 , wherein said grooves of said stationery member and said slippery member each includes a semi-elliptical shape for receiving said spring biasing member.  
     
     
         6 . The exercise device according to  claim 1 , wherein said spring biasing member includes two ends secured together to form said endless loop structure thereof.  
     
     
         7 . The exercise device according to  claim 2 , wherein said stationery member and said slippery member each includes two half elements secured together and having said grooves formed therein for receiving said spring biasing member.  
     
     
         8 . The exercise device according to  claim 1 , wherein said stationery member includes a first surface having at least one anti-slip pad disposed thereon for engaging with the supporting ground.  
     
     
         9 . The exercise device according to  claim 1 , wherein said slippery member includes a first surface having a slipper layer disposed thereon for slipperily engaging with the supporting ground.  
     
     
         10 . The exercise device according to  claim 9 , wherein said slippery member includes a cushioning sheet disposed between said slipper member and said slipper layer.  
     
     
         11 . The exercise device according to  claim 9 , wherein said stationery member includes a first surface having at least one anti-slip pad disposed thereon for engaging with the supporting ground.  
     
     
         12 . The exercise device according to  claim 11 , wherein said stationery member includes a peripheral portion having said at least one anti-slip pad disposed thereon for defining a space within said at least one anti-slip pad, and for receiving said slippery layer of said slippery member therein.  
     
     
         13 . The exercise device according to  claim 1 , wherein said stationery member and said slippery member each includes a securing member attached thereto and engageable with each other, for openably securing said stationery member and said slippery member together.