Structure of step exercising machine
OwnerMajor Changinventor
Life of this patent
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Abstract
A step exercising machine including a pivotable mounting rack turned around an axial tube on an arched bar of a base frame and a transverse retaining rod disposed on the arched bar, two transverse mounting shafts bilaterally disposed to the pivotable rack, two pedals respectively turned about two opposite ends of a first mounting shaft and supported on a respective hydraulic cylinder and respectively pushed against the retaining rod by a respective downward driving rod, wherein the pivotable rack is turned around the axial tube of the arched bar forwards and backwards alternatively when the pedals are alternatively moved up and down, causing the pedals to oscillate leftwards and rightwards alternatively.
Claims3
A step exercising machine comprising:
- a base frame, a pivotable mounting rack, a pair of pedals, two hydraulic cylinders and a handle bar;
- said base frame is composed of a transverse front member having an upright "U" shaped channel support at a middle portion thereof, a longitudinal arched bar having a rear end connected to a transverse rear member and an arched front flat portion connected to said upright "U" shaped channel support, an upright axial tube raised from a front portion of said arched bar and two opposite retaining rods laterally disposed on opposite sides of said arched bar forwardly adjacent to said upright axial tube near said upright "U" shaped channel support there at;
- said pivotable mounting rack made of a metal plate and composed of a "H" shaped upper rack and a "U" shaped lower rack, where said upper rack comprises a horizontal plate, two opposite vertical plates and a first transverse shaft disposed on a top over said horizontal plate with both ends extended out passing through respective vertical plates thereof, a center tube disposed downwardly from said base frame pivotably fitted therein, while said "U" shaped lower rack is placed in said mounting space under said arched bar and suspended from said "H" shaped upper rack which is crossed over said arched bar, and having a second transverse shaft disposed over a bottom plate of said "U" shaped lower rack thereof;
- said pair of pedals each having a lateral hollow barrel at a front end for mounting onto said first transverse shaft of said pivotable mounting rack, two connecting lugs with a respective through hole provided downwardly from a bottom surface of said pedals near a rear end thereof and a driving rod disposed downwardly under a front end of said pedals that is positioned at one side near said axial tube when in assembled condition;
- said two hydraulic cylinders each having a cylinder body with a coupling ring at one end for mounting onto said second transverse shaft of said pivotably mounting rack, a piston rod stretched out from said cylinder body's second end having an eyed end mounted to said connecting lugs of said pedal by a pivot pin;
- and
- said handlebar having a bar stand mounted on said upright "U" shaped channel of said base frame.
Dependencies are inferred from the claim text.