Abstract: An exercise apparatus includes a force receiving member movable relative to a frame. A roller is rotatably mounted on a first crank and supports a rearward portion of the force receiving member. A link is rotatably interconnected between a second crank and an intermediate portion of the force receiving member. The cranks, the roller, and the link cooperate with the force receiving member to move the latter in a desired path.

Abstract: An exercise apparatus alters the elevation of a person based on the person's level of exertion. The exercise itself may involve motion and/or isometric exercise performed by the person's arms and/or legs. The elevating process may be directly linked to the exercise motion and/or controlled electronically.

Abstract: An exercise apparatus links rotation of a crank to generally elliptical motion of a foot supporting member. In particular, both a foot supporting linkage and a drawbar linkage are movably connected between a rocker link and the crank in such a manner that the foot supporting member is constrained to move through an elliptical path of motion. The configuration of the elliptical path may be selectively altered by adjusting the drawbar linkage relative to the rocker link.

Abstract: An exercise apparatus links rotational motion and/or reciprocal pivoting motion to elliptical travel of a force receiving member. In one embodiment, a first link is pivotally mounted on a frame; a crank is rotatably mounted on the frame; a second link is rotatably connected to the crank; the force receiving member is rotatably interconnected between the first link and the second link; and a connector is rotatably interconnected between the first link and the second link. In another embodiment, the first link is pivotally mounted on a post which in turn, is pivotally mounted on a frame.

Abstract: An exercise apparatus has a linkage assembly which is movably mounted on a frame and links rotation of left and right crank to elliptical movement of left and right foot supporting members. The linkage assembly includes left and right connector links having three discrete connection points. A first connection point on each connector link is rotatably connected to a respective crank. A second connection point on each connector link is constrained to move through a predetermined path relative to the frame. A third connection point on each connector link is connected to a first portion of a respective foot supporting link. A second portion of each foot supporting link is constrained to move through a predetermined path relative to the frame. The path of the foot supporting links may be altered by adjusting a first frame member relative to a second member.

Abstract: An exercise apparatus links rotation of a crank to generally elliptical motion of a foot supporting member. A foot supporting linkage is movably connected between a rocker and a crank in such a manner that the foot supporting member moves through a range of motion greater in length than the distance between the points of connection to the crank.

Abstract: An exercise apparatus includes a force receiving member movable relative to a frame. A roller is rotatably mounted on a first crank and supports a rearward portion of the force receiving member. A link is rotatably interconnected between a second crank and an intermediate portion of the force receiving member. The cranks, the roller, and the link cooperate with the force receiving member to move the latter in a desired path.

Abstract: An exercise apparatus has a linkage assembly which links rotation of a crank to generally elliptical movement of a foot supporting member. The linkage assembly includes a first link having a first end rotatably connected to a first rocker link, an intermediate portion rotatably connected to the crank, and a second end rotatably connected to a rearward end of the foot supporting member. An opposite, forward end of the foot supporting member is rotatably connected to a second rocker link. An upper distal portion of the second rocker link is sized and configured for grasping by a person standing on the foot supporting member.

Abstract: An exercise apparatus has a crank and a degree of freedom disposed between a force receiving member and a frame. The resulting linkage allows the force receiving member to move through a generally elliptical path of motion.

Abstract: An exercise apparatus has a frame designed to rest upon a floor surface. Left and right cranks are rotatably mounted on the frame, and left and right rocker links are pivotally mounted on the frame. Left and right foot links have forward ends rotatably connected to respective rocker links, intermediate portions movably connected to respective cranks, and rearward ends sized and configured to support a person's feet. On the preferred embodiment, left and right rigid drawbars are selectively imposed between respective cranks and respective rocker links to convert exercise motion from a stepping type motion to a striding type motion.

Abstract: An exercise apparatus has arm driven members and leg driven members which are movably mounted on a frame. The arm driven members are pivotal relative to the frame, and the leg driven members are movable through various paths relative to the frame. The arm driven members and the leg driven members may be connected to one another and/or the frame to provide facilitate different modes of exercise activity. Also, the leg driven members may be constrained to move through several different fixed paths.

Abstract: An exercise apparatus links rotation of a crank to generally elliptical motion of a foot supporting member. A foot supporting linkage is movably connected between a rocker and a crank in such a manner that the foot supporting member moves through a range of motion greater in length than the distance between the points of connection to the crank.

Abstract: An exercise apparatus has left and right user supporting assemblies which support a person in an upright position relative to an underlying floor surface. The user supporting assemblies are interconnected between the frame and respective left and right cranks in such a manner that rotation of the cranks is linked to movement of respective foot supports and handles through generally vertical paths of motion.

Abstract: An exercise apparatus includes a linkage assembly interconnected between a frame and a crank rotatably mounted on the frame. The linkage assembly includes a rail that is supported by the crank and the frame, and a foot skate that moves up and down together with the rail and back and forth relative to the rail.

Abstract: An exercise apparatus has a linkage assembly which links rotation of a crank to generally elliptical movement of a force receiving member. The linkage assembly includes a flexible rocker link interconnected between the force receiving member and the frame.

Abstract: A multiple rigid bar mechanism serving as an exercise machine which may be characterized as providing a motion path along a closed curve. In the simplest embodiment, the mechanism comprises a motion bar rotatably connected to a flywheel and a trunnion element. The flywheel is rotatably secured to the machine frame about a flywheel base joint, and is eccentrically connected to the motion bar at a flywheel motion bar first joint. Upon input force from the machine operator at a motion bar force input region, the motion bar will be caused to pivot about a motion bar trunnion region thus effecting the motion bar first joint to translate at an eccentric radius about the flywheel or crank rotational axis. The mechanism may be used to exercise the operators upper and/or lower body, and may be described as having a reciprocating type of resistive motion with inertial characteristics of a flywheel.

Abstract: An exercise apparatus links rotation of a crank to generally elliptical motion of a foot supporting member. In particular, both a foot supporting linkage and a drawbar linkage are movably connected between a rocker link and the crank in such a manner that the foot supporting member is constrained to move through an elliptical path of motion. The configuration of the elliptical path may be selectively altered by adjusting the drawbar linkage relative to the rocker link.

Abstract: A semi-recumbent cycling apparatus constrains left and right foot supports to move through substantially elliptical paths of motion relative to a frame, while supporting a person's back in an inclined position relative to an underlying floor surface. The paths of the foot supports have major axes which extend generally perpendicular to the floor surface.

Abstract: An exercise apparatus alters the elevation of a person based on the person's level of exertion. The exercise itself may involve motion and/or isometric exercise performed by the person's arms and/or legs. The elevating process may be directly linked to the exercise motion and/or controlled electronically.

Abstract: An exercise apparatus includes a crank rotatably mounted on a frame, and an axially extending support connected to the crank at a radially displaced location. Both a force receiving member and a discrete support member are linked to the axially extending support in such a manner that rotation of the crank relative to the frame is linked to movement of the force receiving member in a generally elliptical path relative to the frame.