Abstract: A pedal lifting mechanism for use in an elliptical trainer includes a base, a lift bracket pivotally connected with the base for supporting pedals of the elliptical trainer thereon, and an inclination adjusting device mounted in front of the lift bracket. When a driver of the inclination adjusting device is actuated, a driving rod of the inclination adjusting device is changed in its length by the driver, such that a frame of the inclination adjusting device, which is pivotally connected between the driving rod and the lift bracket, is driven by the driving rod to move the lift bracket upwards and downwards relative to the base. Thus, the inclination angle of each of two pedals of the elliptical trainer is adjusted to change the paths of the pedals of the elliptical trainer.

Abstract: A collapsible mechanism for a treadmill is composed of a support frame, a stand, and an operational console. The stand includes a frame body, a first positioning assembly, and a second positioning assembly. The frame body has a bottom side pivotably attached to the support frame in such a way that the frame body is collapsible relative to the frame. The first and second positioning assemblies are connected with the frame body and the support frame separately. Each of the first and second positioning assemblies includes a first (second) fastener and a first (second) sheet member. The first and second fasteners are inserted through the first and second sheet members separately. Each of the first and second sheet members includes two first specific positions. The operational console is pivotably attached to a top side of the frame body and collapsible relative to the stand.

Abstract: A collapsible treadmill is composed of a chassis having two support members in no contact with the ground; a main frame having an endless belt rotatable along a closed path; a folding device having a lifting frame, the lifting frame having two first lateral frames spaced from each other and two second lateral frames spaced from each other, the lifting frame having a rear end pivotably attached to the main frame and two active pivoting members formed at a front end thereof and contacting against the support members; two linking-up members having front ends connected with the active pivoting members and rear ends connected with the chassis; and two limiters mounted to the chassis and defining a limited space with the support members for limiting the space within which the active pivot members can act.

Abstract: A treadmill includes a tread platform having two longitudinal frame bars, a swing unit pivotally mounted at the bottom side of the tread platform, and two inclination angle adjustment blocks. Each inclination angle adjustment block has a core shaft defining an axis line, and a plurality of bearing faces connected to one another and respectively disposed in parallel to the axis line and adapted for selectively supporting the tread platform on the ground. Each bearing face defines with the axis line a respective different vertical distance. The core shafts of the inclination angle adjustment blocks are pivotally coupled to the swing unit to support the inclination angle adjustment blocks at an outer side relative to the longitudinal frame bars of the tread platform. Thus, the treadmill allows manual multi-angle adjustment of the angle of inclination of the tread platform.

Abstract: A dual-purpose exercise equipment includes a spin bike, a bicycle after removal of a rear wheel thereof, and a linking device arranged at one side of an axle of a flywheel of the spin bike and coupled with the bicycle. Thus, an individual user can selectively ride the spin bike or bicycle of the dual-purpose exercise equipment. Alternatively, two users can ride the spin bike and the bicycle respectively at the same time, enjoying riding a tandem bicycle.

Abstract: A pedal correction mechanism used in an elliptical trainer is disclosed to include a pedal link having a coupling portion at the inner side thereof, and a pedal bracket carrying a pedal and having a shaft pivotally inserted into the coupling portion of the pedal link for allowing the pedal bracket to be biased leftwards and rightwards on the axis of the shaft relative to the pedal link to eliminate cumulative tolerances among component parts, preventing derailment and reducing noises.

Abstract: A fixing device for an extension tube of an exercise includes an outer tube and an inner tube received in the outer tube, wherein the extension tube extends through the inner tube. A quick release device laterally mounted to an outer periphery of the outer tube. The quick release device extends through the outer tube and the inner tube to quickly fixing/releasing the extension tube when adjusting the stretching distance of the extension tube.

Abstract: A fixing device for an extension tube of an exercise includes an outer tube and an inner tube received in the outer tube, wherein the extension tube extends through the inner tube. A quick release device laterally mounted to an outer periphery of the outer tube. The quick release device extends through the outer tube and the inner tube to quickly fixing/releasing the extension tube when adjusting the stretching distance of the extension tube.

Abstract: A dumbbell includes a handle, a weight unit and two caps for retaining the weight unit within the handle. The weight unit includes weights and springs alternately arranged within the handle. Each of the caps is located against a related one of the springs so that the weights do not hit the handle axially.

Abstract: An elliptical exercise machine includes a frame pivotally attached to a base, a pivotal coupling device pivotally coupling the base and the frame together, a retractable device having an outer tube pivotally coupled to the base, and an inner shaft slidably engaged in the outer tube and pivotally coupled to the pivotal coupling device for allowing the inner shaft to be moved into the outer tube or to be moved out of the outer tube when the frame is pivoted to the base, and a latching device for latching the inner shaft to the outer tube at any selected position and for allowing the elliptical exercise machine to be easily adjusted to different moving strokes and to be easily operated by the user.

Abstract: An elliptical exercise machine includes a frame pivotally attached to a base, a pivotal coupling device pivotally coupling the base and the frame together, a retractable device having an outer tube pivotally coupled to the base, and an inner shaft slidably engaged in the outer tube and pivotally coupled to the pivotal coupling device for allowing the inner shaft to be moved into the outer tube or to be moved out of the outer tube when the frame is pivoted to the base, and a latching device for latching the inner shaft to the outer tube at any selected position and for allowing the elliptical exercise machine to be easily adjusted to different moving strokes and to be easily operated by the user.