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US 9,662,529 B2Granted
Exercise apparatus with a user controlled, gravity operated shifting mechanism
OwnerBart Millerinventor
Life of this patent
Estimating the term…
Abstract
An exercise apparatus is provided where a user selectively changes the amount of effort required to operate the machine on demand without interrupting the workout. A manual shifting process allows the user to selectively change the amount of resistance with the gravity included positioning of a resistance weight on a lever arm.
Claims13
A gravity-assisted, selectively adjustable exercise apparatus, comprising:
- a lever arm having a proximal end and a distal end;
- a pivot point positioned between said proximal end and said distal end, said lever arm rotates a predetermined angle about said pivot point, wherein the elevation of said distal end is selectively altered;
- a resistance weight operably interconnected to said lever arm, wherein said resistance weight is movable between a first position and a second position along said lever arm when said resistant weight is in an unlocked state, and said resistance weight is immovable between said first position and said second position in a locked state, and wherein said resistance weight is movable away from said pivot point and toward said pivot point based on said predetermined angle and gravitational pull;
- and
- a trip mechanism operably interconnected to said resistance weight, wherein upon receiving an input from a user during an exercise, said trip mechanism causes said resistance weight to move between said first position and said second position to change the distance between said resistance weight and said pivot point.
2 more elements
An exercise apparatus with a user-operated resistance adjustment mechanism, comprising:
- a lever arm having a proximal end and a distal end;
- a pivot point positioned proximate to said proximal end, said lever arm rotatable about said pivot point;
- a traveling wheel rollable between a first position and a second position along said lever arm, wherein a force required to lift said distal end of said lever arm can be selectively changed by a user of said apparatus, wherein said traveling wheel is configured to roll away from said pivot point and toward said pivot point based on gravitational pull;
- a user-activated release assembly which selectively releases said traveling wheel to roll between said first position and said second position;
- and
- a trip mechanism operably interconnected to the release assembly, wherein said trip mechanism is activated based on an elevation of said distal end of said lever arm, and said trip mechanism causes said release assembly to selectively release said traveling wheel.
3 more elements
Dependencies are inferred from the claim text.