Rope Pulling Exercise Apparatus with Variable Resistance

Abstract

A rope pulling exercise apparatus with variable resistance has a main supporting frame, a rotary cylinder assembly pivotally mounted on the main supporting frame, a rotary wheel pivotally mounted on the main supporting frame, a driving device and a resistance generating device. The rotary cylinder assembly has a pull-rope wrapped around a rotary cylinder. The driving device has a driving wheel coaxially mounted on the rotary cylinder, a driven wheel coaxially mounted on the rotary wheel, aligning with the driving wheel and being smaller than the driving wheel in radius, and a transmission belt mounted around the driving wheel and the driven wheel. The resistance generating device selectively resists rotation of the rotary wheel. The rope pulling exercise apparatus provides a user one more option on choosing fitness equipments, and increases the user's desire on exercising.

What is claimed is: 
     
         1 . A rope pulling exercise apparatus comprising
 a main supporting frame having a mounting bracket;   a rotary cylinder assembly having
 a rotary cylinder pivotally mounted on the mounting bracket of the main supporting frame; and 
 a pull-rope wrapped around the rotary cylinder; 
   a rotary wheel pivotally mounted on the mounting bracket of the main supporting frame and having a peripheral surface;   a driving device disposed between the rotary cylinder and the rotary wheel and having
 a driving wheel coaxially mounted on an end surface of the rotary cylinder; 
 a driven wheel coaxially mounted on an end surface of the rotary cylinder, aligning with the driving wheel and being smaller than the driving wheel in radius; and 
 a transmission belt mounted around the driving wheel and the driven wheel; and 
   a resistance generating device disposed adjacent to the peripheral surface of the rotary wheel and selectively resisting rotation of the rotary wheel.   
     
     
         2 . The rope pulling exercise apparatus as claimed in  claim 1 , wherein the resistance generating device has
 a band having an inner surface corresponding to the peripheral surface of the rotary wheel; and   a magnetic portion mounted on the inner surface of the band.   
     
     
         3 . The rope pulling exercise apparatus as claimed in  claim 1 , wherein the resistance generating device has a band having an inner surface abutting the peripheral surface of the rotary wheel. 
     
     
         4 . The rope pulling exercise apparatus as claimed in  claim 2 , wherein
 the mounting bracket of the main supporting frame has a mounting portion;   the band of the resistance generating device has
 a fastening end securely attached to the mounting bracket of the main supporting frame; and 
 a free end corresponding to and being movable relative to the mounting portion of the mounting bracket of the main supporting frame. 
   
     
     
         5 . The rope pulling exercise apparatus as claimed in  claim 3 , wherein
 the mounting bracket of the main supporting frame has a mounting portion;   the band of the resistance generating device has
 a fastening end securely attached to the mounting bracket of the main supporting frame; and 
   a free end corresponding to and being movable relative to the mounting portion of the mounting bracket of the main supporting frame.   
     
     
         6 . The rope pulling exercise apparatus as claimed in  claim 4 , wherein the resistance generating device further has an adjusting member rotatably mounted through the free end of the band and the mounting portion of the mounting bracket of the main supporting frame. 
     
     
         7 . The rope pulling exercise apparatus as claimed in  claim 5 , wherein the resistance generating device further has an adjusting member rotatably mounted through the free end of the band and the mounting portion of the mounting bracket of the main supporting frame. 
     
     
         8 . The rope pulling exercise apparatus as claimed in  claim 6 , wherein the resistance generating device further has a resilient assembly having
 a slider slidably mounted on the adjusting member; and   a resilient element having two ends each respectively connected to the free end of the band and the slider.   
     
     
         9 . The rope pulling exercise apparatus as claimed in  claim 7 , wherein the resistance generating device further has a resilient assembly having
 a slider slidably mounted on the adjusting member; and   a resilient element having two ends each respectively connected to the free end of the band and the slider.   
     
     
         10 . The rope pulling exercise apparatus as claimed in  claim 6 , wherein the adjusting member has a bolt mounted through the free end of the band and the mounting portion of the mounting bracket of the main supporting frame. 
     
     
         11 . The rope pulling exercise apparatus as claimed in  claim 7 , wherein the adjusting member has a bolt mounted through the free end of the band and the mounting portion of the mounting bracket of the main supporting frame. 
     
     
         12 . The rope pulling exercise apparatus as claimed in  claim 8 , wherein
 the adjusting member has a bolt mounted through the mounting portion of the mounting bracket of the main supporting frame; and   the slider of the resilient assembly of the resistance generating device is mounted on the bolt of the adjusting member.   
     
     
         13 . The rope pulling exercise apparatus as claimed in  claim 9 , wherein
 the adjusting member has a bolt mounted through the mounting portion of the mounting bracket of the main supporting frame; and   the slider of the resilient assembly of the resistance generating device is mounted on the bolt of the adjusting member.   
     
     
         14 . The rope pulling exercise apparatus as claimed in  claim 1 , wherein
 the main supporting frame has
 a bottom support; and 
 an upright support mounted on the bottom support; 
   the mounting bracket of the main supporting frame is mounted on a top of the upright support.   
     
     
         15 . The rope pulling exercise apparatus as claimed in  claim 1 , wherein
 the rope pulling exercise apparatus further has a guide wheel assembly mounted by the rotary cylinder; and   the pull-rope of the rotary cylinder assembly slidably abuts the guide wheel assembly.