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US 4,961,570 AGranted
Exercising mechanism for simulating climbing a ladder
OwnerChester Changinventor
Life of this patent
Estimating the term…
Abstract
An exerciser includes a frame body, a wheel pivotally provided on one end of the frame body, a driving mechanism including a rocker arm pivoted on each side of the frame body, and a transmission mechanism being coupled between the wheel and the driving mechanism. The wheel is actuated to rotate by an up and down movement of a free end of each rocker arm.
Claims2
An exercising mechanism comprising generally a frame body having a handle provided on a top end thereof;
- a resistance wheel rotatably provided on said frame body;
- a driving mechanism including a pair of rocker arms pivoted on each side of said frame body, a crank having two crank arms being pivotally provided on said frame body, a driving gear fixed onto a crank shaft of said crank, coupling rod being pivotally connected between a free end of each said crank arm and each said rocker arm so that said driving gear is actuated to rotate by an up and down movement of a free end of each said rocker arm;
- a transmission mechanism being coupled between wheel and said driving mechanism;
- said transmission mechanism including a driven gear rotatably provided on said frame body for engagement with said driving gear of said driving mechanism, an intermediate gear being fixed to and coaxial with said driven gear, a pinion fixed onto an axle of said wheel, and a coupling element being coupled between said pinion and said intermediate gear;
- so that a user of said exercising mechanism may step on said free ends of said rocker arms so as to simulate climbing up a ladder.
2 more elements
An exercising mechanism comprising generally a frame body having a handle provided on a top end thereof;
- a resistance wheel rotatably provided on said frame body;
- a driving mechanism including a pair of rocker arms pivoted on each side of said frame body, a crank having two crank arms being pivotally provided on said frame body, a driving gear fixed onto a crank shaft of said crank, a coupling rod being pivotally connected between a free end of each said crank arm and each said rocker arm so that said driving gear is actuated to rotate by an up and down movement of a free end of each said rocker arm;
- a transmission mechanism being coupled between said wheel and said driving mechanism;
- a foot pedal with a stop rod laterally provided therein being pivotally provided on a free end of each said rocker arm where a pair of stop plates are provided;
- said stop rod of said pedal being provided between said stop plates so that a rotation of said stop rod is limited by said stop plates;
- and so that a user may step on said foot pedals so as to simulate climbing up a ladder.
3 more elements
Dependencies are inferred from the claim text.