Abstract: Portable machine for doing stair climbing exercises which has a base movable between horizontal and upright positions, a wheel mounted on the base for rolling engagement with the floor when the base is in the upright position, a first step movable between an operative position beside the base and a storage position within the base, a second step surmounted on the base, and a post pivotally attached to the base for movement between a supporting position generally perpendicular to the base and a handle position generally parallel to the base.

Abstract: An exercise apparatus may include a frame. A crank system may be coupled to the frame. A brake/inertia device may be coupled to the crank system. A pivotal linkage pendulum system may be coupled to the crank system. The pivotal linkage pendulum system may include one or more link members. An upper pivot point of at least one of the link members may be coupled to the crank system. In some embodiments, the upper pivot point of the at least one of the link members may be coupled to the crank system through a movable member. The upper pivot point may move in a back and forth path of motion or in a closed path motion. A foot member may be coupled to one or more of the link members. The foot member may include a footpad.

Abstract: An folding exercising machine includes an upright with a bottom frame for positioning on a floor, two handlebars pivotally coupled to the upright at two sides, two pedal frames respectively pivoted to the bottom sides of the handlebars, each pedal frame having a bottom pin, a wheel module pivoted to the bottom frame of the upright and alternatively set between an operative position and a non-operative position, a lock screw provided at the bottom frame of the upright for locking the wheel module in the operative position, two first sockets respectively provided at two pedal cranks of a wheel of the wheel module for receiving the bottom pins of the pedal frames to hold the wheel module in the operative position, two second sockets provided at a transverse bar at the rear side of the wheel module for receiving the bottom pins of the pedal frames to hold the wheel module in the non-operative position, and a retaining member provided at the upright for locking the wheel module in the non-operative position.

Abstract: An exercise device includes a first treadle assembly supporting a first moving surface and a second treadle assembly supporting a second moving surface. The exercise device further includes an upper body exercise assembly operably associated with the exercise device. The first treadle assembly is pivotally coupled with the frame structure, and the second treadle assembly is pivotally coupled with the frame structure. In another form, an exercise device includes a frame structure, a first treadle assembly having a first endless belt in rotatable engagement with a first roller, a second treadle assembly having a second endless belt in rotatable engagement with a second roller, and a flywheel operably coupled with the first endless belt and the second endless belt.

Abstract: An elliptical exercise apparatus. The exercise apparatus generally includes a frame, a pair of cranks pivotally connected to the frame and configured to rotate about a common axis, first and second reciprocating members, first and second support members, and first and second foot engaging members. The first end portion of each of the first and second reciprocating members may be pivotally coupled to the frame. The first portion of each of the first and second support members may be pivotally coupled to the corresponding crank, and the second portion of each of the first and second support members may be pivotally coupled to the second end portion of the corresponding reciprocating member. Each foot engaging member is coupled to a corresponding support member and may generally move through a closed path. Handle members may be coupled to the support members and may generally move through a closed path.

Abstract: An folding exercising machine includes an upright with a bottom frame for positioning on a floor, two handlebars pivotally coupled to the upright at two sides, two pedal frames respectively pivoted to the bottom sides of the handlebars, each pedal frame having a bottom pin, a wheel module pivoted to the bottom frame of the upright and alternatively set between an operative position and a non-operative position, a lock screw provided at the bottom frame of the upright for locking the wheel module in the operative position, two first sockets respectively provided at two pedal cranks of a wheel of the wheel module for receiving the bottom pins of the pedal frames to hold the wheel module in the operative position, two second sockets provided at a transverse bar at the rear side of the wheel module for receiving the bottom pins of the pedal frames to hold the wheel module in the non-operative position, and a retaining member provided at the upright for locking the wheel module in the non-operative position.

Abstract: Various exercise machines have foot supporting linkages that move a person's feet through respective left and right paths of motion in respective planes that are skewed relative to one another.

Abstract: An exercise apparatus for exercising a user's body comprises an upper exercise assembly, a lower exercise assembly, and a pair of step assemblies. The upper exercise assembly enables exercising of the user's upper body through alternating extension and retraction of the user's arms. The upper exercise assembly comprises an upright member coupled with an overhead member having an impact member suspended therefrom. The lower exercise assembly comprises an upright member coupled with a base member. The upright member of the lower exercise assembly can be coupled with the upright member of the upper exercise assembly. The pair of step assemblies is pivotally coupled with the lower exercise assembly for exercising the user's lower body through an alternating stepping motion. The user can repeatedly strike the impact member while performing the alternating stepping motion to simultaneously exercise the user's upper and lower body.

Abstract: A hip-abduction stepper exercise apparatus primarily comprises a base and two pedal assemblies settled abreast on the base. Each of the pedal assemblies includes a pedal, a vertical movement module, an expanding movement module, and a recovery module. The pedal is settled on the vertical movement module while the expanding movement module is settled on the base so that the two pedals can depart from or come close to each other with respect to a level position. The vertical movement module is connected to the expanding movement module so that the two pedals can vertically move in a direction non-perpendicular to the ground. The recovery module is connected to the vertical movement module and the base and provides an external force for returning the vertical movement module and the expanding movement module to initial positions thereof.

Abstract: A stationary exercise device with flexible support elements may include a frame with a base portion. A crank system with crank arms is coupled to and supported by the frame. Right and left pivotal linkage assemblies may each have an arcuate motion member and a foot support member. The arcuate motion member may be coupled to the frame. The foot support member may be coupled to the arcuate motion member. The arcuate motion member may be oriented in a generally vertical position and the foot support member may be oriented a generally horizontal position. Flexible element coupling systems couple the right and left foot support members to the crank system.

Abstract: An exercise apparatus includes a frame configured to rest on a floor surface; left and right rocker links pivotally mounted on the frame; left and right reciprocating links having forward ends rotatably coupled to respective rocker links, and rearward ends constrained to move in reciprocal fashion relative to the frame; left and right cranks rotatably mounted on the frame; left and right drive links having forward ends rotatably coupled to respective cranks, and rearward ends rotatably coupled to intermediate portions of respective reciprocating members; and left and right foot links having forward ends rotatably coupled to respective rocker links, and rearward, foot supporting ends supported by respective drive links for both rotational and translational movement relative thereto. The resulting linkage assemblies constrain the foot supporting ends to move through elliptical paths, and the paths may be altered by adjusting various components of the linkage assemblies relative to one another and/or the frame.

Abstract: The present invention relates to a recumbent exercise apparatus that provides elliptical foot exercise with arm exercise. More particularly, the present invention relates to an exercise machine having separately supported pedals for the feet and arm exercise coordinated with the motion of the feet. The pedals articulate to provide lower leg exercise with the heel and toe remaining in contact with the pedal while the pedals move along an adjustable inclined elliptical pedal curve. Arm exercise is adjustable to accommodate different size operators. A separate foot contact is provided to overcome a startup toggle condition.

Abstract: A stepper including one short post extending downwardly from a toe end of each of two pedals and a sleeve being provided on a tail end of each short post. Both pedals being respectively mounted to a front lateral lever located on a bottom of a base. Both ends of the lever are capped. Both pedals alternatively swinging up and down with the lever as the axis allowing a wider swing angle for both pedals to effectively reduce the height of the base subject to force.

Abstract: A dual idler structure of an elliptical trainer can tighten a transmission belt, without easily causing the belt to be slipped upon rotating clockwise or counterclockwise. By operating an upper and a lower stopping bolt to abut an upper and a lower idler set, resilience to the idler sets by the transmission belt upon rotating clockwise or counterclockwise is prevented, such that the belt is prohibited from being easily slipped.

Abstract: An elliptical exercising device includes a rotating unit mounted on a support frame, and two link rods connected to the rotating unit such that intermediate segments of the link rods are moved reciprocatively in an elliptical path. A foot support is tiltably mounted on the intermediate segment. A suspending rail is moved with the foot support to be subjected to a gradually varying urging force resulting from movement of the intermediate segment and to be continuously urged to angularly move. A rail engaging rider slidably contacts the suspending rail to be urged by the urging force to angularly move upwards or downwards. An urging force counteracting mechanism is mounted pivotally on the support frame, and is coupled with the rail engaging rider so as to impart a force to counteract an x-axis force component of the urging force to thereby keep the suspending rail in a horizontal position.

Abstract: An exercise device includes a swing arm, a foot link and a connection link. A portion of the connection link is configured to be disconnected from the foot link.

Abstract: A stepping exerciser includes a spindle rotatably supported on a base, a pair of foot supports rotatably supported on the base and arranged to be moved up and down and stepped by a user and pivotally coupled to the spindle in order to drive and rotate the spindle, a pair of handles rotatably supported on the base and arranged to be rotated or swung by the user and connected to the spindle to selectively drive and rotate the spindle. The spindle may thus be continuously driven by the foot supports and the handles alternatively. A follower may be secured on the spindle to increase a moment of inertia of the spindle, and a wheel may be coupled to the follower to apply a retarding force to the follower and the spindle.

Abstract: A stationary exercise apparatus with adjustable members for varying the stride path and the exercise intensity of a user. The stationary exercise apparatus has a frame. The frame has side portions positioned at left and right sides. The rearward of the frame and the side portions define a space for a user to get on the stationary exercise apparatus via the space. The stationary exercise apparatus further comprises top members which are movably coupled to the side portions of the frame for the user to grip thereon to safely get on the stationary exercise apparatus.

Abstract: The present invention relates to a recumbent exercise apparatus that provides elliptical foot exercise with arm exercise. More particularly, the present invention relates to an exercise machine having separately supported pedals for the feet and arm exercise coordinated with the motion of the feet. The pedals articulate to provide lower leg exercise with the heel and toe remaining in contact with the pedal while the pedals move along an inclined elliptical pedal curve. Arm exercise is adjustable to accommodate different size operators. A step through region free of linkage is provided for easy ingress and egress.

Abstract: An exercise apparatus includes a frame configured to rest on a floor surface; left and right rocker links pivotally mounted on the frame; left and right reciprocating links having forward ends rotatably coupled to respective rocker links, and rearward ends constrained to move in reciprocal fashion relative to the frame; left and right cranks rotatably mounted on the frame; left and right drive links having forward ends rotatably coupled to respective cranks, and rearward ends rotatably coupled to respective left and right foot links. The foot links have forward ends rotatably coupled to respective rocker links. Intermediate portions of the reciprocating links support rearward portions of respective drive links for both rotational and translational movement relative thereto. The resulting linkage assemblies constrain rearward ends of the foot links to move through elliptical paths, and the paths may be altered by adjusting various components of the linkage assemblies relative to one another and/or the frame.

Abstract: An exercise apparatus has a linkage assembly which links rotation of an adjustable length crank to generally elliptical movement of a force receiving member. The linkage assembly includes a first link having a rearward end which is rotatably connected to the crank, and a forward end which is rotatably connected to a lower end of a suspended link. An upper portion of the suspended link is rotatably connected to the exercise apparatus frame.

Abstract: A pace-adjusting mechanism of an elliptical cross trainer having an electric adjusting motor installed at the bottom of a flywheel transmission unit for driving a telescopic tube in displacement. Meanwhile, a w-shaped driven connecting rod and two L-shaped connecting elements are employed to adjust the vertical position of two treadle planks, thereby achieving different exercise paces.

Abstract: The present invention relates to a standup exercise apparatus that simulates walking, jogging and climbing with arm exercise. More particularly, the present invention relates to an exercise machine having separately supported pedals for the feet and arm exercise coordinated with the motion of the feet. Elliptical cross trainers guide the feet along a generally elliptical shaped curve to simulate the motions of jogging and climbing. Existing elliptical cross trainers often use excessive pedal articulation which can overwork the ankle to achieve a longer stride. The present invention is an improved elliptical exercise machine capable of extended exercise with less pedal articulation that is more ankle friendly. One end of a foot support member has a pedal following elliptical motion while the other end is guided by an orbital link to drive an alternator and flywheel. The resulting pedal motion is foot friendly. Stride length can be adjusted.

Abstract: The present invention relates to an adjustable drive mechanism that converts a force supplied from an operator or other means along an adjustable curve path into rotary motion. More particularly, the present invention relates to an adjustable drive mechanism configured for an operator driven or motor driven exercise apparatus such as a stationary bicycle, recumbent stationary bicycle, cross trainer or other devices such as a bicycle. The present invention relates to the kinematic motion control of pedals which follow more complex curves that can be changed with the adjustable drive. More particularly, an adjustable drive mechanism based upon a pair of crank linkages and belt assembly can be incorporated into several exercise apparatus to drive a load resistance.

Abstract: The present invention relates to a recumbent exercise apparatus that provides elliptical foot exercise with arm exercise. More particularly, the present invention relates to an exercise machine having separately supported pedals for the feet and arm exercise coordinated with the motion of the feet. The pedals articulate to provide lower leg exercise with the heel and toe remaining in contact with the pedal while the pedals move along an adjustable inclined elliptical pedal curve. Arm exercise is adjustable to accommodate different size operators. A separate foot contact is provided to overcome a startup toggle condition.

Abstract: An operator selectable mechanism for adjusting a moveable handle for use with an exercise apparatus is described. The handle can be selectively lowered or the upper portion of the handle can be moved laterally with respect to the apparatus in order to vary the motion of the upper portion of the handle.

Abstract: A stationary exerciser includes two handles pivotally coupled to an upright support of a base and each having an upwardly extended hand grip and an outwardly extended arm, two foot supports each having a rear portion moveable in a reciprocating action relative to the base and a front portion coupled to the arms of the handles with coupling devices, and two links pivotally coupled between the lower portions of the handles and the foot supports for maintaining the arms and the handles and the foot supports in position and for allowing the arms and the foot supports to be moved in a curved moving stroke relative to the base and for allowing the moving stroke of the foot supports to be adjusted.

Abstract: Provided is a novel physical therapy system and device that can be manually operated by a post-operative patient without the need of professional on site assistance, wherein the degree of movement of the limb or joint of interest is measured and recorded so as to provide a record of the progress of the prescribed post-operative therapy for immediate feedback to the patient as well as for long term data recordation for the therapist or physician.

Abstract: A step-extending device is adapted for use in association with a walker to ascend or descend a stairway. The step-extending device may employ a first base and a second base, each of which is adapted to receive legs of a walker upon respective upper surfaces. The device may be used in connection with a frame that connects the first and second bases to each other. A cross member connects first and second bases. A frame includes one or more upright members with handles adapted for grasping and moving the step-extending device from one stair to another stair during use. The height of each of the first and second support bases is adjusted to approximate the height of stairs upon a stairway, so that stairs of essentially any height may be accommodated.

Abstract: A set of generally rectangular flat plates for aquatic exercise that create drag when moved through a body of water. Each flat plate is provided with an arcuate finger slot for receiving the user's four fingers and an aperture for receiving their thumb. The finger slot and thumb aperture are strategically located such that when the plate is gripped, the center of the palm of the user's hand lays over the center of the flat plate on one side and the fingers and thumb are folded over to engage the opposite side and the user's forearm lays parallel to and over the longitudinal center line of the flat plate. Drag produced by moving the flat plate through the water is transferred to the center of the flat plate and the center of that force passes through the center of the palm of the hand.

Abstract: An exercise device includes two cranks rotatably coupled to an upright support of a base, two handles pivotally coupled to the upright support, and two foot supports each having a front portion pivotally coupled to the pivot rod of the cranks with a link and each having a rear portion pivotally coupled to the rear portion of the base, and the lower portions of the handles are pivotally coupled to the foot supports to allow the moving stroke of the foot supports to be controlled by the handles. The handles may be pivotally coupled together with a coupling device. A foot pedal may be pivotally supported on each of the foot supports and pivotally coupled to the handles.

Abstract: Exercise apparatus has a pair of handles pivotally mounted on a frame and guiding respective user arm motions along swing paths obliquely approaching the sagittal plane of the user.

Abstract: A rotatable handgrip for a cardiovascular exercise machine allowing a user to rotate the handgrip relative exercise aims of the machine about an axis which intersects the handle and is generally in line with their forearm.

Abstract: The present invention is an exercise device, primarily for aerobic exercise. The invention is a hybrid between a toy called a pogo stick, a stair stepper, a trampoline and a ski simulator. The present invention combines the exercise a user receives from an exercise machine with the enjoyment a user receives from a toy. The user stands on pedals and grasps a handle, then either steps up and down against elastic resistance, or bounces up and down. The user may also swing from side to side or scissor his legs. Additionally, a pivot allows a combination of motions, such as scissoring while bouncing up and down. The amount of resistance may be controlled by adding or modifying elastic components.

Abstract: An exercise device includes two cranks rotatably coupled to an upright support of a base, two handles pivotally coupled to the upright support, and two foot supports each having a front portion pivotally coupled to the pivot rod or an extended arm of the cranks with a link and each having a rear portion pivotally coupled to the rear portion of the base, and the lower portions of the handles are pivotally coupled to the foot supports to allow the moving stroke of the foot supports to be controlled by the handles. The handles may be pivotally coupled to the cranks with levers. A foot pedal may be pivotally supported on each of the foot supports and pivotally coupled to the handles.

Abstract: An improved skating machine, wherein the improvement involves the incorporation of flexible components including (1) identical first and second pedal connector flexible bars rotatably connected at one respective one to a respective first and second longitudinal pedal bar and rotatably connected at their respective opposite end to a crank axle; (2) a resilient tension means connected at one end to the crank axle and connected at its opposite end to a post which is attached to a portion of a central longitudinal base frame; and (3) at least one transverse interconnecting elastic means transversely interconnecting the first and second longitudinal pedal bars. The flexible components have sufficient elasticity to prevent the machine from locking when the crank and the pedal connector bars are aligned with each other when the pedals are at their extreme left or right position.

Abstract: A Back Twister comprises: a horizontal supporting platform 1 with attached bearing structure 6, an elliptical stepper with two footholds 3 attached to the horizontal supporting platform 1 a hand rotary member with two hand grips 7 attached to the bearing structure 6, a kinematic transmission 8 connecting the elliptical stepper and hand rotary member such that they are rotatable in synchronisation with a 1:1 gear ratio and the user having steady position may perform an elliptical motion with feet and circular motion with hands while keeping his/her torso suspended freely above the bearing structure whereby the only support for the users body are the footholds and hand grips, which provides good exercising for muscles and joints of the spinal column, The distance between the elliptical stepper and hand rotary member is adjustable, to suit different sized users.

Abstract: A stationary exercise device with adjustable members for varying the stride path and the exercise intensity of a user. The stationary device having a stationary frame and a movable frame that moves relative to the stationary frame to vary the exercise intensity of a user.

Abstract: An arm mechanism for an elliptical exerciser comprises a linkage having a first end pivotally mounted to a frame of the elliptical exerciser, and a second end receiving a reciprocating movement from a foot pedal of the elliptical exerciser. An arm member has a handling portion to be handled by a user of the elliptical exerciser, and a coupling portion to be coupled to the first end of the linkage. A coupling mechanism releasably couples the linkage to the arm member such that the linkage and the arm member rotate jointly about the frame upon the linkage receiving the reciprocating movement from the foot pedal in a coupled position of the coupling mechanism, and for decoupling the arm member from the linkage in a decoupled position of the coupling mechanism to prevent rotation of the arm member while the linkage rotates.

Abstract: A mechanism for an elliptical exerciser comprises a crank rotatably connected to a frame so as to have a free end rotatable in a circular path. A restriction member is rotatably connected to the frame. A transmission member is connected to the restriction member, and a central portion thereof is rotatably connected to the crank, whereby the central portion of the transmission member moves along said circular path while the first end of the transmission member is constrained by the restriction member to move along a reciprocating arcuate path, such that a free end of the transmission member moves along an elliptical path.

Abstract: The present invention provides a bidirectional linkage single damping mechanism suitable for a leg exerciser. The invention includes a circular drive element, which shifts circularly to define a first section and a second section in opposite motion directions. A brake swinging arm, provided with a coupling end and a swinging end. The coupling end is connected with a treading rotation axis; and the swinging end is connected with either section. The two sections drive separately two drive pulleys. A bidirectional drive pulley assembly has two rotary pulleys and two drive pulleys connected by a unidirectional bearing. The bidirectional drive pulley assembly then drives a damping wheel assembly. With this invention, it is possible to provide a damping mechanism that can be connected with the leg exercisers for an improved resistance.

Abstract: An elliptical exercise machine and methods for using the machine where the horizontal length of the stride of the ellipse can be adjusted by the user without the user having to alter the vertical dimension of the ellipse by an equivalent amount. The machine provides for alteration due to the interaction of two arms via a coupler where distance from a rotational axis to the coupler may be adjusted The machine may allow for this adjustment to occur during the performance of an exercise routine.

Abstract: The variable stride exercise device utilizes various configurations of linkage assemblies, cam members, and other components, connected with a frame to allow a user to dynamically vary the user's stride path during exercise. The exercise device allows for a foot engagement member travel path that adapts to the change in stride length rather than forcing the user into a fixed size path. A user's exertion level may have several components impacting the stride length provided by the machine, such as leg power, torso power, and (in versions of the exercise apparatus with arm supports or exercise components) arm power. The exercise device may include a lockout device that selectively eliminates the variable stride features of the exercise device and allows the user to exercise in a stepping motion.

Abstract: A hip-abduction stepper exercise apparatus primarily comprises a base and two pedal assemblies settled abreast on the base. Each of the pedal assemblies includes a pedal, a vertical movement module, an expanding movement module, and a recovery module. The pedal is settled on the vertical movement module while the expanding movement module is settled on the base so that the two pedals can depart from or come close to each other with respect to a level position. The vertical movement module is connected to the expanding movement module so that the two pedals can vertically move in a direction non-perpendicular to the ground. The recovery module is connected to the vertical movement module and the base and provides an external force for returning the vertical movement module and the expanding movement module to initial positions thereof.

Abstract: An exercise apparatus includes left and right rigid connector links having first portions rotatably connected to respective cranks, second portions constrained to move in reciprocating fashion, and third portions configured to support a person's feet. The resulting assembly links rotation of the cranks to movement of the foot supports through generally elliptical paths. The connection points may be moved relative to one another and/or a supporting frame to adjust the size, shape, and/or orientation of the paths.

Abstract: The present invention provides for a variable stride exercise device having a variable size close curved striding path during use. The exercise device described and depicted herein utilizes various configurations of linkage assemblies, cam members, and other components, connected with a frame to allow a user to dynamically vary his stride path during exercise. An exercise device conforming to aspects of the present invention provides a foot path that adapts to the change in stride length rather than forcing the user into a fixed size path. A user's exertion level may have several components impacting the stride length provided by the machine, such as leg power, torso power, and (in embodiments with arm supports or exercise components) arm power. Other embodiments of the exercise device include a lockout device that selectively eliminates the variable stride features of the exercise device and allows the user to exercise in a stepping motion.

Abstract: An elliptic motion exercise machine includes a frame, on which a reciprocating motion mechanism, a circular motion mechanism and two linking members are provided. Two parallelogram linkage mechanisms are movably mounted on the frame and connected to the linking members. Two foot panels are fixed on the parallelogram linkage mechanisms respectively. The parallelogram linkage mechanisms keep the foot panels in fixed slops in the entire motion, such that when an user stands feet on the foot panels and exerts the foot panels, toes of user's feet moves in a speed that is substantially identical to that of use's heels.

Abstract: A foldable elliptical fitness machine comprises a first frame, a second frame supported by the first frame, and an enabling assembly for enabling the second frame to rotate with respect to the first frame, the first frame securely supported on a floor and the second frame installed an elliptical structure, and the second frame is pivotally coupled to the first frame by a pivoting device, such that the second frame can be rotated with respect to the first frame, wherein the elliptical structure comprises a rotating member having two eccentric pivotal points, and two pedal arms. A central penetrating axle of the rotating member is pivotally coupled onto the second frame, and each eccentric pivotal point is pivotally coupled to the first end of the pedal arm, and each pedal arm includes a footrest for a user to step. If the first end of the pedal arm rotates with the crank, the footrest will move in an elliptic path.

Abstract: An elliptical exercise machine with adjustable ramp is provided and comprises a frame, first and second reciprocating foot supports, each foot support having a foot placement pad, first and second swing arms being pivotally connected to an upright support structure, first and second link arms being connected to a respective swing arm and a second end of each link arm being interconnected to a second end of a respective reciprocating foot support, a drive assembly positioned on the upright support structure, wherein a first end of each reciprocating foot support is movably linked to the drive assembly, and a ramp assembly adjustably linked to the frame by an adjustment mechanism coupled to the frame and the ramp assembly, the adjustment mechanism being configured to adjust the position of the ramp assembly and to thereby adjust stride movements of the respective foot placement pads.

Abstract: An exercise apparatus links rotation of left and right cranks to elliptical movement of left and right foot supporting members. The foot supporting members include left and right foot platforms that travel through space defined between the left and right cranks. Rollers on the cranks allow the foot supporting members to translate relative to the cranks, and amplified drawbar/rocket link arrangements determine the extent of the translation.