Patent ID: 8376913

Claim:
An exercising device comprising: a frame including base and front upper supports opposite to each other in an upright direction; left and right crank arms mounted on said frame and rotatable about a crank axis that extends in a direction transverse to said upright direction; left and right linking units, each including a swing link which has an upper segment that is pivotally mounted on said front upper support about a pivot axis parallel to the crank axis, and a swing link body that extends downward from said upper segment to terminate at a lower end, a crank link configured to couple a respective one of said left and right crank arms to said swing link body, wherein each crank link has a first end directly coupled to said respective one of said left and right crank arms and a second opposite end directly coupled to a respective one of said swing link bodies, and a pedal link having a front linkage end connected to said lower end, and a pedal link body which extends rearwardly from said front linkage end to terminate at a rear linkage end, wherein said swing link of each of said left and right linking units includes a handle which extends upwardly from said upper segment to terminate at a handgrip which is manually operable to alternately swing said swing links of said left and right linking units so as to drive rotational movement of said left and right crank arms through said crank links; left and right foot engaging pedals respectively mounted on said rear linkage ends of said left and right linking units such that, when a respective one of said left and right crank arms is driven to perform a rotational movement, a respective one of said left and right foot engaging pedals moves along an elliptical path; a sloping ramp member which is disposed on said base support and rearwardly of said left and right crank arms, and which has an inclined surface to guide said left and right foot engaging pedals during movement of said left and right foot engaging pedals along the elliptical path so as to simulate stair climbing, wherein the inclination of the sloping ramp member is adjustable by an electric drive unit; and left and right rollable anti-friction members, each mounted under a respective one of said left and right foot engaging pedals and rollably engaged with said inclined surface.