Economic abdomen stretching exerciser

Abstract

Disclosed is an economic abdomen stretching exerciser, which includes two upright foot members arranged in parallel on the floor, a pivot shaft horizontally pivotally coupled between the upright foot members and spaced above the floor at a distance, a swinging backboard with two handlebars affixed to the pivot shaft for turning with the backboard relative to the foot members and for supporting the user sitting on the floor, and return springs for returning the pivot shaft and the backboard after the pivot shaft having been biased.

1 . An economic abdomen stretching exerciser comprising: 
 a support, said support comprising two upright foot members arranged in parallel on the floor;    a pivot shaft horizontally pivotally coupled between said upright foot members and spaced above the floor at a distance; and    a swinging backboard affixed to said pivot shaft for turning with said backboard relative to said foot members and for supporting the user sitting on the floor, said swinging backboard having two handlebars bilaterally disposed near a bottom side thereof.    
   
   
       2 . The economic abdomen stretching exerciser as claimed in  claim 1 , further comprising return spring means coupled between said foot members and two distal ends of said pivot shaft for returning said pivot shaft and said backboard after said pivot shaft having been biased.