Patent ID: 8734298

Claim:
An elliptical exercise machine for use on a floor, the elliptical exercise machine comprising: a base structure; a rotating member rotatably supported by a front portion of the base structure; a first track pivotally coupled to a rear portion of the base structure; a second track pivotally coupled to the rear portion of the base structure adjacent to the first track; a first arm having a first arm front portion pivotally coupled to the rotating member and a first arm rear portion movably supported by the first track; a second arm having a second arm front portion pivotally coupled to the rotating member and a second arm rear portion movably supported by the second track; a first foot support operably coupled to the first arm; a second foot support operably coupled to the second arm, wherein movement of the first and second foot supports drives the rotating member by means of the first and second arms as the first arm rear portion moves back and forth on the first track and the second arm rear portion moves back and forth on the second track; and a track adjustment system operably coupled to the first and second tracks, wherein the track adjustment system includes— a driver; and a lift member having a distal end portion configured to contact the floor and a proximal end portion operably coupled to the driver, wherein operation of the driver in a first direction moves the distal end portion of the lift member away from the first and second tracks and against the floor, thereby increasing the inclination of the first and second tracks relative to the floor, and wherein operation of the driver in a second direction opposite to the first direction moves the distal end portion of the lift member toward the first and second tracks, thereby reducing the inclination of the first and second tracks relative to the floor.