Structure of stepper

Abstract

The stepper with improved structure has a base, two pedals and the resistance device. The front ends of these two pedals are pivoted respectively on the protruding prop at the front of the base, which becomes the movable ends for the two pedals that provides the twisting motion in up and down directions, and forms a force of resistance when stepping provided by the resistance device. The bottom of the protruding prop is mounted on the base pivotally, which puts the prop in a revolvable position; a triangular guide mounted on the base, and its two oblique planes sets correspondingly and relatively to the movable ends of the two pedals, and on the bottoms of the movable ends of the pedals are the sliding part that are mounted pivotally on the oblique planes of the triangular guides. When the pedals are stepped down, they generate the motion that twists left and right downward diagonally as well.

1 . A structure of a stepper comprising: 
 a base, two pedals and the resistance device; front ends of said two pedals being pivoted respectively on a protruding prop at a front of the base, which becomes the movable ends for the two pedals that provides the twisting motion in up and down directions, and forms a force of resistance when stepping provided by the resistance device; a bottom of the protruding prop being mounted on the base pivotally, which puts the prop in a revolvable position; and    a triangular guide mounted on the base, and two oblique planes being set correspondingly and relatively to the movable ends of the two pedals, and on the bottoms of the movable ends of the pedals are the sliding part that are mounted pivotally on the oblique planes of the triangular guides;    wherein twisting motion is generated that moves downward diagonally following the oblique planes when the pedals are stepped down.    
     
     
         2 . The stepper defined in  claim 1 , wherein said sliding part mounted on the pedals is comprised of a block that protrudes downward.  
     
     
         3 . The stepper defined in  claim 1 , wherein said sliding part placed on the two pedals is comprised of an arch plate.  
     
     
         4 . The stepper defined in  claim 1 , wherein said resistance device comprises a C plate and a knob, forming an extended base at a bottom of the protruding prop in front of the base, and binding the C plate to the outside of base, said knob being placed on an outside by the front of the base, and a screw being inserted in the screw hole by an ear of an opening of the C plate so as to adjust the tightness of the C plate as well as the resistant coefficient when stepping on the pedals.