Cross training exercise device
AssigneePrecor Incorporated
InventorDavid Dyer
Life of this patent
Estimating the term…
Abstract
An exercise device includes a frame, a pair of foot supports, and at least one four-bar linkage assembly coupled to the frame. The at least one linkage assembly is coupled to at least one of the foot supports. The four-bar linkage assembly directs the foot support in a generally elliptical motion while in use. The generally elliptical motion defines a major dimension extending at an angle from horizontal that is within the range of about thirty degrees (30°) to about seventy-five degrees (75°) and the major dimension having a length that is within the range of about ten inches to about eighteen inches.
Claims27
An exercise device comprising:
- a frame;
- a pair of foot supports;
- at least one four-bar linkage assembly coupled to the frame;
- at least one linkage assembly coupled to at least one of the foot supports, the four-bar linkage assembly directing the foot support in a generally elliptical motion while in use, the generally elliptical motion defining a major dimension that extends at an angle from horizontal that is within the range of about thirty degrees (30°) to about seventy-five degrees (75°) and the major dimension having a length that is within the range of about 10 inches to about 18 inches.
An exercise device comprising:
- a main frame;
- a main crank arm coupled to the frame;
- a secondary crank arm;
- a connecting link pivotally connected to a foot supporting portion at a first pivotal connection, the connecting link further pivotally connecting the main crank arm and the secondary crank arm at second and third pivotal connections, respectively;
- an end of the secondary crank arm opposite the second pivotal connection establishing a ground point connection to the main frame;
- and
- a lift arm connected to the ground point of the secondary crank arm, the lift arm being further connected to a lift actuator such that as the lift actuator is enabled, the location of the ground point of the secondary crank arm changes.
An exercise device comprising:
- a main frame;
- a main crank arm pivotally coupled to the frame;
- a secondary link;
- and
- a foot link pivotally coupled to the main crank arm, the secondary link, and to a foot pad, the foot pad travels in a generally elliptical motion while in use;
- a positioning link pivotally coupled to the frame and to the secondary link, and operatively coupled to an actuator, the positioning link positionable between a plurality of fixed positions, each fixed position altering the general elliptical motion of the foot pad.
Dependencies are inferred from the claim text.