Abstract: The present disclosure is directed to recumbent exercise machines and associated systems and methods. In one embodiment, for example, a recumbent exercise apparatus can include a seat, two linear guide tracks forward of the seat, and two pedal assemblies movably coupled to corresponding linear guide tracks positioned forward of the seat. The pedal assemblies can be configured to move back and forth along the linear guide tracks. The recumbent exercise apparatus can further include linear actuators operably coupled to each of the linear guide tracks and configured to move the linear guide tracks up and down in a vertical direction. The pedal assemblies can be configured to move in elliptical patterns when the pedal assemblies move back and forth along the linear guide tracks and the linear actuators move the linear guide tracks up and down.

Abstract: A stationary exercise apparatus includes a frame, a driving wheel assembly, two treading units, and a flywheel assembly. The flywheel assembly has a driven wheel. The driven wheel and the driving wheel assembly are positioned coaxially and pivotally. The treading units are arranged in a four-link manner and can actuate the driving wheel assembly. The driving wheel assembly drives the driven wheel to rotate at an inertial operating speed higher than the rotation speed of the driving wheel assembly. After being actuated, the stationary exercise apparatus operates continuously because of inertial rotation of the driven wheel. During their operation, pedals of the treading units keep lying on the same horizontal plane to thereby enable the user to tread smoothly and lower the prevalence of sports injuries.

Abstract: The present disclosure is directed to recumbent exercise machines and associated systems and methods. In one embodiment, for example, a recumbent exercise apparatus can include a seat, two linear guide tracks forward of the seat, and two pedal assemblies movably coupled to corresponding linear guide tracks positioned forward of the seat. The pedal assemblies can be configured to move back and forth along the linear guide tracks. The recumbent exercise apparatus can further include linear actuators operably coupled to each of the linear guide tracks and configured to move the linear guide tracks up and down in a vertical direction. The pedal assemblies can be configured to move in elliptical patterns when the pedal assemblies move back and forth along the linear guide tracks and the linear actuators move the linear guide tracks up and down.

Abstract: A fitness equipment bracket adjustment structure includes an adjustable sliding bracket including a base member defining therein a sliding groove, a sliding member coupled to and movable in and out of the sliding groove of the base member and a positioning member fixedly fastened to a sidewall of the base member and kept in communication with the sliding groove, and a locking device set including an anti-skid block mounted between the sliding member and the positioning member and defining a stop portion detachably abutted against the sliding member of the adjustable sliding bracket, a connection member inserted through a through hole of the anti-skid block, a coupling member fixedly connected to the connection member and threaded with its one end into the positioning member and a handle coupled to the other end of the coupling member and rotatable relative to the coupling member.

Abstract: An exercise machine includes a base, an axle rotationally supported on the base and two cranks connected to the axle. The cranks are rotational synchronously with the axle. A drive wheel unit includes an active wheel provided on the axle so that the active wheel is rotational synchronously with the cranks. A passive wheel unit includes a load wheel supported on the axle so that the load wheel is rotational relative to the axle and a passive connected to the load wheel so that the passive wheel is rotational synchronously with the load wheel. A step-up device includes a shaft rotationally supported on the base and small and large wheels connected to the shaft so that they are rotational synchronously. The small wheel is connected to the active wheel so that they are rotational together. The large wheel is connected to the passive wheel so that they are rotational together.

Abstract: A fitness equipment bracket adjustment structure includes an adjustable sliding bracket including a base member defining therein a sliding groove, a sliding member coupled to and movable in and out of the sliding groove of the base member and a positioning member fixedly fastened to a sidewall of the base member and kept in communication with the sliding groove, and a locking device set including an anti-skid block mounted between the sliding member and the positioning member and defining a stop portion detachably abutted against the sliding member of the adjustable sliding bracket, a connection member inserted through a through hole of the anti-skid block, a coupling member fixedly connected to the connection member and threaded with its one end into the positioning member and a handle coupled to the other end of the coupling member and rotatable relative to the coupling member.

Abstract: A flywheel assembly for exercise devices includes a flywheel. A first disc and a second disc sequentially received in the flywheel and securely attached to each other. A control plate is rotatably sandwiched between the first disc and the second disc. Multiple magnetic devices are respectively and radially connected to the control plate. A shaft centrally extends through the first disc, the second disc and the flywheel, and laterally mounted onto the second disc, wherein the flywheel is rotatable relative to the first disc, the control plate with the magnetic devices and the second disc. A drive device is laterally mounted onto the second disc for driving the control plate and adjusting the damping to the flywheel when the control plate is rotated relative to the first disc and the second disc due to the operation from the drive device.

Abstract: A stationary exercise apparatus includes a frame, a driving wheel assembly, two treading units, and a flywheel assembly. The flywheel assembly has a driven wheel. The driven wheel and the driving wheel assembly are positioned coaxially and pivotally. The treading units are arranged in a four-link manner and can actuate the driving wheel assembly. The driving wheel assembly drives the driven wheel to rotate at an inertial operating speed higher than the rotation speed of the driving wheel assembly. After being actuated, the stationary exercise apparatus operates continuously because of inertial rotation of the driven wheel. During their operation, pedals of the treading units keep lying on the same horizontal plane to thereby enable the user to tread smoothly and lower the prevalence of sports injuries.

Abstract: A flywheel assembly for exercise devices includes a flywheel. A first disc and a second disc sequentially received in the flywheel and securely attached to each other. A control plate is rotatably sandwiched between the first disc and the second disc. Multiple magnetic devices are respectively and radially connected to the control plate. A shaft centrally extends through the first disc, the second disc and the flywheel, and laterally mounted onto the second disc, wherein the flywheel is rotatable relative to the first disc, the control plate with the magnetic devices and the second disc. A drive device is laterally mounted onto the second disc for driving the control plate and adjusting the damping to the flywheel when the control plate is rotated relative to the first disc and the second disc due to the operation from the drive device.

Abstract: An exercise machine includes a base, an axle rotationally supported on the base and two cranks connected to the axle. The cranks are rotational synchronously with the axle. A drive wheel unit includes an active wheel provided on the axle so that the active wheel is rotational synchronously with the cranks. A passive wheel unit includes a load wheel supported on the axle so that the load wheel is rotational relative to the axle and a passive connected to the load wheel so that the passive wheel is rotational synchronously with the load wheel. A step-up device includes a shaft rotationally supported on the base and small and large wheels connected to the shaft so that they are rotational synchronously. The small wheel is connected to the active wheel so that they are rotational together. The large wheel is connected to the passive wheel so that they are rotational together.

Abstract: An exercise machine includes a base, an axle rotationally supported on the base and two cranks connected to the axle. The cranks are rotational synchronously with the axle. A drive wheel unit includes an active wheel provided on the axle so that the active wheel is rotational synchronously with the cranks. A passive wheel unit includes a load wheel supported on the axle so that the load wheel is rotational relative to the axle and a passive connected to the load wheel so that the passive wheel is rotational synchronously with the load wheel. A step-up device includes a shaft rotationally supported on the base and small and large wheels connected to the shaft so that they are rotational synchronously. The small wheel is connected to the active wheel so that they are rotational together. The large wheel is connected to the passive wheel so that they are rotational together.

Abstract: An exercise machine includes a base, an axle rotationally supported on the base and two cranks connected to the axle. The cranks are rotational synchronously with the axle. A drive wheel unit includes an active wheel provided on the axle so that the active wheel is rotational synchronously with the cranks. A passive wheel unit includes a load wheel supported on the axle so that the load wheel is rotational relative to the axle and a passive connected to the load wheel so that the passive wheel is rotational synchronously with the load wheel. A step-up device includes a shaft rotationally supported on the base and small and large wheels connected to the shaft so that they are rotational synchronously. The small wheel is connected to the active wheel so that they are rotational together. The large wheel is connected to the passive wheel so that they are rotational together.

Abstract: An angle adjustable pedal assembly for elliptical exercisers includes a pedal frame and a pedal which is pivotably connected to two sides on an end of the pedal frame. Each side wall has a hole with three notches defined in an inside of the hole and the pedal has two connection plates each of which has a reset slot and a set slot which communicates with the reset slot. A pin extends through one of the reset slot and the set slot, and is engaged with one of the three notches in the side walls so that the pedal can be set at different angle relative to the pedal frame by engaging with one of the three notches in the side walls.

Abstract: An angle adjustable pedal assembly for elliptical exercisers includes a pedal frame and a pedal which is pivotably connected to two sides on an end of the pedal frame. Each side wall has a hole with three notches defined in an inside of the hole and the pedal has two connection plates each of which has a reset slot and a set slot which communicates with the reset slot. A pin extends through one of the reset slot and the set slot, and is engaged with one of the three notches in the side walls so that the pedal can be set at different angle relative to the pedal frame by engaging with one of the three notches in the side walls.