Treadmill

Abstract

A treadmill including two supporting mechanisms respectively disposed under two pedals. Each supporting mechanism includes a rock arm one end of which is pivotally connected with the bottom of each pedal. The other end of the rock arm via a pivot shaft is pivotally connected with one end of a supporting arm. The other end of the supporting arm is connected with a frame body of the treadmill.

1 . A treadmill comprising: a frame body; two pedals side by side pivotally mounted on the frame body, each pedal being looped with an endless belt; and a pivoting linking mechanism disposed on an inner side of a front beam of the frame body for alternatively mutually driving the pedals, a dampening cylinder being disposed between each pedal and the frame body, the dampening cylinder being connected with a supporting mechanism, whereby when the pedals are mutually drivingly moved in reverse directions, the dampening cylinders serve to buffer movement thereof, said treadmill being characterized in that the supporting mechanism is mounted under each pedal and includes a linkage arm one end of which is pivotally connected with a bottom of each pedal, the other end of the linkage arm via a pivot shaft being pivotally connected with one end of a supporting arm, the other end of the supporting arm being connected with the frame body.  
     
     
         2 . The treadmill as claimed in  claim 1 , wherein each linkage arm includes two corresponding side slats pivotally connected with each other via a pivot shaft, each supporting arm including two corresponding side slats pivotally connected with each other via a pivot shaft, each linkage arm and a corresponding supporting arm being pivotally connected with each other via a pivot shaft to contain an angle and form a V-shaped structure.  
     
     
         3 . The treadmill as claimed in  claim 1 , wherein the supporting mechanism is drivingly connected with the pivoting linking mechanism, the pivoting linking mechanism including a pulley and a pull cord wound over the pulley, two ends of the pull cord being respectively connected to the pivot shafts pivotally connecting the linkage arms with the supporting arms, whereby the two pedals are mutually drivingly movable.  
     
     
         4 . The treadmill as claimed in  claim 1 , wherein a connecting beam is connected between two lengthwise beams of the frame body, the supporting arm via a pivot plate being pivotally connected with the connecting beam.  
     
     
         5 . The treadmill as claimed in  claim 1 , wherein the supporting mechanism is drivingly connected with the pivoting linking mechanism, the pivoting linking mechanism including a linking bracket and two operating bars pivotally connected with the linking bracket, the operating bars being also pivotally connected with the pivot shafts pivotally connecting the linkage arms with the supporting arms, whereby the two pedals are mutually drivingly movable.