Method for adjusting the traveling path of a tread-training device

Abstract

A method for adjusting the traveling path of a tread-training device is disclosed. The tread-training device has a seat which is connected with a curved handle, and another end thereof is installed with a left crank and a right crank. Ends of the left crank and the right crank are pivotally connected to a left treading rod and a right treading rod; and another ends of the treading rods are pivotally to ends portions of a left driving rod and a right treading rod. The axial rod moves along a cambered path so that the orientations of the driving rods are altered or the highest points and lowest points of the pivotal points of the treading rods are altered so that tracks of moving path of the treading rods are altered. Therefore, the tread-training device is adjusted so that the user moves as along an upward path, a flat path and a downward path.

What is claimed is  
     
         1 . A method for adjusting the traveling path of a tread-training device; 
 the tread-training device having a seat; one end of the seat of the tread-training device being connected with a curved handle, and another end thereof is installed with a left crank and a right crank which are coaxially arranged; ends of the left crank and the right crank are pivotally connected to a left treading rod and a right treading rod; and another ends of the left treading rod and right treading rod being pivotally to end portions of a left driving rod and a right treading rod which are capable of swinging forwards and rearwards freely; characterized in that: 
 the axial rod moves along a cambered path so that the orientations of the left driving rod and right driving rod are altered or a highest point and a lowest point of a pivotal point of the left treading rod and the left driving rod and a highest point and a lowest point of a pivotal point of the right treading rod and the right driving rod are altered so that tracks of moving path of the treading rods are altered; therefore, the tread-training device is adjusted so that the user moves as along an upward path, a flat path and a downward path  
   
     
     
         2 . The method for adjusting the traveling path of a tread-training device as claim in  claim 1 , wherein a vertical line from a center of an axis of a round arc formed by the path is used as a reference line of zero degree, then the axial rod is adjusted to and positioned in a positive or a negative angles with respect to the vertical line.  
     
     
         3 . The method for adjusting the traveling path of a tread-training device as claim in  claim 2 , wherein pivotal sections of upper ends of the left driving rod and right driving rod and the axial rod are further connected with a movable link, thereby, the axial rod moves forwards and rearwards, and thus the treading rods move continuously along a round path.  
     
     
         4 . The method for adjusting the traveling path of a tread-training device as claim in  claim 3 , wherein one end of the movable link is pivotally installed at a predetermined position of the seat, said predetermined position is utilized as a fulcrum for swinging forwards and rearwards.  
     
     
         5 . The method for adjusting the traveling path of a tread-training device as claim in  claim 3 , further comprising an angle-adjusting device for displacing and positioning the movable link.  
     
     
         6 . The method for adjusting the traveling path of a tread-training device as claim in  claim 5 , wherein the angle-adjusting device has a sleeve with one end being pivotally connected to the seat; the sleeve has an adjusting rod; one end of the adjusting rod protrudes out of the sleeve; the protruding end is moveably and pivotally connected with a front driving arm and a rear driving arm; another end of the front driving arm is pivotally connected to a predetermined position of the supporting rod, and another end of the rear driving arm is pivotally and movably to the axial rod of the movable link; 
 wherein when moving the adjusting rod, the orientations of the font driving arm and rear driving arm are altered so that a pivotal point of the left treading rod and the left driving rod and a highest point and a pivotal point of the right treading rod and the right driving rod are altered and thus tracks of moving path of the treading rods are altered; therefore, the tread-training device is adjusted so that the user moves as along an upward paths a flat path and a downward path.    
     
     
         7 . The method for adjusting the traveling path of a tread-training device as claim in  claim 1 , wherein when moving the adjusting rod, a highest point and a lowest point of a pivotal point of the left treading rod and the left driving rod and a highest point and a lowest point of a pivotal point of the right treading rod and the right driving rod are altered and thus tracks of moving path of the treading rods are altered; therefore, the tread-training device is adjusted so that the user moves as along an upward path, a flat path and a downward path.  
     
     
         8 . The method for adjusting the traveling path of a tread-training device as claim in  claim 5 , wherein the angle-adjusting device is between the supporting rod and the movable link.  
     
     
         9 . The method for adjusting the traveling path of a tread-training device as claim in  claim 5 , wherein a predetermined position of the sleeve is installed with a penetrating hole; a positioning pin is inserted into the penetrating hole; an adjusting rod is inserted into the sleeve; a bank of oblong holes are formed on the middle section of the adjusting rod; two lateral sides of the oblong holes are formed with cambered grooves for buckling the positioning pin; one end of the adjusting rod protrudes out of the sleeve; two side of each oblong hole are formed with cambered grooves for being buckled by the positioning pin.  
     
     
         10 . A method for adjusting the traveling path of a tread-training device; 
 the tread-training device having a seat; one end of the seat is connected with a supporting rod of a curved handle; and another end thereof is installed with a left crank and a right crank which are coaxially arranged; ends of the left crank and the right crank are pivotally connected to a left treading rod and a right treading rod; characterized in that: 
 the supporting rod has a positioning frame having a cambered hole; a lower end of the cambered hole has a plurality of grooves which are spaced arranged for positioning the axial rod of the left driving rod and right driving rod; two end of the axial rod are pivotally connected with a left driving rod and a right driving rod; thereby, when the user treads upon pedals of the left treading rod and right treading rod, a flexible and harmonic elliptical track is generated; adjusting the axial rod connecting the left driving rod and right driving rod to different groove at a bottom end of the cambered hole, the angle relation of the line from the highest point to the lowest point of pivotal point of the left treading rod and the left driving rod and the angle relation of the line from the highest point to the lowest point of pivotal point of the right treading rod and the right driving rod are altered; therefore, the slope of the elliptic path is altered, and the tread-training device is adjusted so that the user moves as along an upward path, a flat path and a downward path.  
   
     
     
         11 . A method for adjusting the traveling path of a tread-training device; 
 the tread-training device having a seat; one end of the seat of the tread-training device being connected with a supporting rod of a curved handle, and another end thereof being installed with a left crank and a right crank which being coaxially arranged; ends of the left crank and the right crank being pivotally connected to a left treading rod and a right treading rod; a movable link being pivotally installed at the seat near the supporting rod; a bottom end of the movable link being pivotally installed to the seat; the two sides of the upper end thereof being installed a left driving rod and a right driving rod, respectively; one end of the left treading rod being pivotally connected to one end of the left driving rod, and one end of the right treading rod being pivotally connected to one end of the right driving rod; an upper side of the left treading rod having a pedal and the upper side of the right treading rod having another pedal for being treaded by the user; thereby, an elliptical moving path being generated; characterized in that: 
 a lifting motor is pivotally installed at a predetermined section of the seat and the movable link; the lift motor has a motor for driving a screw rod; thereby, a screw cover engaged to the screw rod is s telescopically; one end of the lift motor is firmly secured to the seat; when the motor is actuated, the screw cover will displace forwards and rearwards. The top of the screw cover is pivotally installed to the movable link. Therefore, movable link will shift in orientation. Therefore, then the angle relation between the highest point and the lowest point of a pivotal point of the left treading rod and the left driving rod and the angle relation between the highest point and the lowest point of a pivotal point of the right treading rod and the right driving rod are altered; therefore, a slope of the elliptic path is changeable, and thus the tread-training device is adjusted so that the user moves as along an upward path, a flat path and a downward path.