Treading apparatus

Abstract

A treading apparatus, comprising a base frame, a rear support, an oil cylinder base, carrying communicating left and right oil cylinders, left and right treadles, an oil buffer, and a throttle valve. The left and right treadles are hingedly connected with the rear support. During use, the left and right treadles are alternately pushed down, performing a treading movement. Left and right connecting rods are attached to the left and right treadles, having far ends on which rolls are set which drive guided rods to enter the left and right oil cylinders. Left and right treading plates are mounted on the left and right treadles. The oil buffer communicates with the left and right oil cylinders, having a volume regulator which regulates volume of oil stored in the oil buffer. The throttle valve regulates flow of oil between the left and right oil cylinders.

1 . A treading apparatus, comprising: 
 a base frame;    a rear support, mounted on a rear side of said base frame;    an oil cylinder base in front of said rear support, carrying communicating left and right oil cylinders;    left and right guided rods, entering said left and right oil cylinders, respectively;    left and right treadles, hingedly connected with said rear support;    left and right connecting rods, attached to said left and right treadles, respectively, having far ends;    left and right rolls, set on said far ends of said left and right connecting rods, respectively;    left and right treading plates, mounted on said left and right treadles, respectively; and    an oil buffer, placed between and communicating with said left and right oil cylinders, having a volume regulator which regulates volume of oil stored in said oil buffer.    
     
     
         2 . A treading apparatus according to  claim 1 , wherein said volume regulator further comprises: 
 a vessel, communicating with said left and right oil cylinders; and    an adjusting screw, vertically entering said vessel.    
     
     
         3 . A treading apparatus, comprising: 
 a base frame;    a rear support, mounted on a rear side of said base frame;    an oil cylinder base in front of said rear support, carrying communicating left and right oil cylinders;    left and right guided rods, entering said left and right oil cylinders, respectively;    left and right treadles, hingedly connected with said rear support;    left and right connecting rods, attached to said left and right treadles, respectively, having far ends;    left and right rolls, set on said far ends of said left and right connecting rods, respectively;    left and right treading plates, mounted on said left and right treadles, respectively;    a throttle valve, placed between and communicating with said left and right oil cylinders, regulating flow of oil between said left and right oil cylinders.    
     
     
         4 . A treading apparatus according to  claim 3 , wherein said throttle valve further comprises: 
 a tubelet, communicating with said left and right oil cylinders; and    a throttle screw, entering said tubelet, thus regulating flow of oil between said left and right oil cylinders.