Abstract: A foldable trampoline includes a tubular frame having a first section and a second section coupled to each other via a pair of frame hinges. The device further includes a flexible fabric stretched outwardly attached to the tubular frame to form a trampoline mat, wherein the tubular frame is configured to in an unfolded position or a folded position via the pair of frame hinges. When the tubular frame is in the unfolded position, the first section and the second section are laid out flat away from each other via the frame hinge to form a full-pie shape. When the tubular frame is in the folded position, the first section and the second section are folded towards to each other via the pair of frame hinges to form a half-pie shape, without having to remove the flexible fabric from the first section and second section.

Abstract: An exercise device includes a first tubular frame having a flexible fabric attached thereon, a second tubular frame having a rigid board mounted thereon, and at least three elongate support members disposed between and separate the first tubular frame and the second tubular frame. Each of the elongate members includes a first end fixedly mounted on the first tubular frame and a second end fixedly mounted on the second tubular frame, such that a first cross plane of the first tubular frame is substantially parallel to a second cross plane of the second tubular frame. When the second tubular frame is placed on a substantially flat surface, the exercise device can be used as a jumping exercise device. When the first tubular frame is placed on the substantially flat surface, the exercise device can be used as a stepping exercise device.

Abstract: An exercise device includes a first tubular frame having a flexible fabric attached thereon, a second tubular frame having a rigid board mounted thereon, and at least three elongate support members disposed between and separate the first tubular frame and the second tubular frame. Each of the elongate members includes a first end fixedly mounted on the first tubular frame and a second end fixedly mounted on the second tubular frame, such that a first cross plane of the first tubular frame is substantially parallel to a second cross plane of the second tubular frame. When the second tubular frame is placed on a substantially flat surface, the exercise device can be used as a jumping exercise device. When the first tubular frame is placed on the substantially flat surface, the exercise device can be used as a stepping exercise device.

Abstract: An exercise device includes a base frame having a first baseboard member, a second baseboard member, and a base pad disposed in between. The first baseboard member includes a first locking member disposed on a first headend of the first baseboard member, and the second baseboard member includes a second locking member disposed on a second headend of the second baseboard member. The exercise device further includes a pole frame having a top crossbar, a bottom crossbar, a first side pole, and a second side pole. The first lock member of the first baseboard member is inserted into a cross section of the first side pole and the second lock member of the second baseboard member is inserted into a cross section of the second side pole, such that the pole frame is interlocked with the base frame substantially perpendicularly.

Abstract: Embodiments of an exercise machine are disclosed. In one embodiment, an exercise machine includes a base supporting frame, a handlebar assembly, a seating assembly, and a stepper assembly. The base supporting frame having a front end and a rear end is adapted to be positioned on a support surface. The handlebar assembly is positioned at the front end of the base supporting frame and is adapted for the user to hold onto while the user is standing on the pedals. The seating assembly is positioned at the rear end of the base supporting frame and is adapted for a user of the exercise machine to sit on the seating assembly while the user's feet are placed on the pedals. The stepper assembly is positioned between the seating assembly and the handlebar assembly and includes a pair of first and second reciprocating pedals rotatably mounted on the stepper assembly.

Abstract: An exercise machine includes a main shaft having a bottom end and a top end along a longitudinal direction is described. A rotatable element may be provided at the bottom end of the main shaft. A torsion resilient assembly can include a fixed torsion structure, a pivotable structure and an elastic element. The pivotable structure can pivot to deform the elastic element to induce a resilient torque force. An engagement frame may be rotatably mounted to the pivotable structure. User force may cause the rolling of the main shaft to change an angular relationship between the engagement frame and the main shaft to cause the pivotable structure to induce a resilient torque force for user exercising.

Abstract: An exercise machine including a support frame having a handle structure affixed to a base structure is described. The handle structure can provide hand support for a user using the machine. The base structure can provide floor support for the machine. One or more resilient pedaling assemblies may be pivotably coupled with the base structure to guide the exercising movements of the user. Each resilient pedaling assembly may comprise an elastic element to provide torsion force, a foot pad for user foot resting and pivot assemblies rotatably engaged with the elastic element and the foot pad. Movement of the foot pad may cause deformation of the elastic element via the resilient pedaling assemblies. The deformation can induce the torsion force from the elastic element to provide reciprocal foot pedaling effects to the user.

Abstract: An torsion pivot device including an elastic element having an axis in a longitudinal direction is described. Two or more pivot structures may be engaged with separate portions of the elastic element along the axis to allow the pivot structures to exert torque force to the separate portions of the elastic element. An axial guide mechanism may be defined through the elastic element substantially along the axis. The pivot structures may be rotatably coupled with the elastic element via the axial guide mechanism to allow the pivot structures to pivot or rotate relative to each other around the axis. The elastic element may be deformed by the torque force via the pivoting or rotation of the pivot structures. Twisting tension may be induced by the deformed elastic element to counter the torque force.

Abstract: An exercise machine including a support frame, one or more arched frames and a grip frame detachably coupled together in a circular sequence is described. A locking control mechanism can allow detaching or attaching one end of the grip frame from the arched frames to configure the machine in an operating configuration or a collapsed configuration. The arched frames in an operating configuration are arranged substantially parallel to each other to allow a user positioned in between the arched frames to perform exercise movements. When one end of the grip frame is detached from the arched frame, the arched frames, the grip frame and the support frames may be folded (or foldable) into a collapsed configuration with the arched frames substantially stacked together covering each other. The arched frames, the support frame and the grip frame can remain coupled in sequence in the collapsed configuration.

Abstract: An exercise machine including a rocker frame movably coupled with a roller assembly via a torsion resistance mechanism is described. The rocker frame may include at least one arcuate rail to provide floor support for a rocking motion of the rocker frame. One or more pedal control structures may be pivotally coupled with the rocker frame near each distal end of the arcuate rail to drive the rocking motion. The roller assembly may be configured to make a rolling motion when the rocker frame rocks. A torque force can be generated via the torsion resistance mechanism as a result of changes in relative positions between the rocker frame rocking and the roller assembly rolling. The force driving the rocking motion can be countered by the torque force to support exercising movements of a user exerting the force.

Abstract: An exercise machine including a rocker frame movably coupled with a roller assembly via a torsion resistance mechanism is described. The rocker frame may include at least one arcuate rail to provide floor support for a rocking motion of the rocker frame. One or more pedal control structures may be pivotally coupled with the rocker frame near each distal end of the arcuate rail to drive the rocking motion. The roller assembly may be configured to make a rolling motion when the rocker frame rocks. A torque force can be generated via the torsion resistance mechanism as a result of changes in relative positions between the rocker frame rocking and the roller assembly rolling. The force driving the rocking motion can be countered by the torque force to support exercising movements of a user exerting the force.

Abstract: An exerciser with collapsible components for easy storage and operation is described. The exerciser can include a track with two distal ends, two handle bars may be affixed to the track via the handle coupling assemblies, a plurality of leg members affixed to the track via leg coupling assemblies defined on a bottom side of the track, and slide assembly slidably coupled to the track and movable along the track. A handle bar affixed at a handle storage position via the handle coupling assembly may be substantially hidden under the track. Each leg member affixed at a leg storage position may extend towards the distal ends under the track to reduce the required storage space. Each handle bar affixed at the handle storage position may be fittingly inserted in between a pair the leg members affixed at the leg storage position to reduce the required storage space.

Abstract: An exercise machine applicable for strengthening a user's abdominal muscles is described. The exercise machine can include a base frame, a backrest assembly and a seat assembly. The base frame can have side members and a crossbar member to provide floor support. The backrest assembly may be rotablely coupled with the base frame to swivel with simultaneous rotational movements around two or more axes of rotations. The backrest assembly can include two or more pairs of pivot joints. Each pair of pivot joints may define one of the axes of rotation. Handle bars may be mounted substantially transverse to the axes of rotation. The seat assembly may be affixed to the base frame to allow a user sitting on a seat pad of the seat assembly to cause the swiveling of the backrest assembly via hand pushes on the handle bars.