Abstract: A step exerciser including a main shaft supported on a rear transverse bar and a horizontally disposed front barrel, an axle mounted in the horizontally disposed front barrel, two oscillating bars turned about the axle at two opposite sides of the main shaft, two actuating bars having a respective front end respectively pivoted to the oscillating bars and a respective rear end, two front links and two rear links respectively pivoted together and pivotably coupled between the oscillating bars and the rear ends of the actuating bars, a driving wheel revolvably supported in a rear wheel slot in the main shaft, two cranks coupled between the driving wheel and the rear links, a fly wheel revolvably supported in a front wheel slot in the main shaft and coupled to the driving wheel by a transmission belt, two foot plates respectively supported on the actuating bars, and two handlebars respectively pivoted to the top onds of the oscillating bars.

Abstract: A stair exerciser having a plurality of revolvable steps supported by endless chain conveyors and a control device for speed control, which, by the weight and action of a user walking on the steps, enables the mechanism to run cyclical and continuous action thereby affording the user stair climbing like exercises.

Abstract: A multi-function pull bar for performing a variety of body exercises in chest-expanding and in developing strength in the arm, neck and legs, comprises a hollow main bar body having an extensible dual sleeve tube structure and an elastic cord pull device elastically stretchably located inside the main bar body and having the free ends of two pull cords leading out respectively from the two end housings of the main body. At each end of the main bar body is provided a housing, inside the housings are pulley assemblies for holding and guiding the two pull cords. The two pull cords of the cord pull device are connected at the free ends thereof respectively to a hook and between the two hooks is removably mounted a flexible grip belt or a rigid grip bar. On the main bar body may be attached a removably sleeve cover whereby it allows only the hook end of the pull cords to be exposed out.

Abstract: An improved exercise stepper has a base, a pair of treadle pedals pivotably connected by the front ends thereof to each side of the supporting portion at the front end of the base, a lever device longitudinally swingably mounted in the base and a pair of oil pressure cylinders extensibly and swingably located between the front portion of the base and the bottoms of the pair of treadle pedals. The pair of treadle pedals are provided in the interior thereof each with an extensible type flexible rope pulling device formed by the free end extending to the outside on the front part of the treadle pedal and the other part being supported by a set of pulley wheels.

Abstract: A novel exerciser which simulates the exercise obtained while climbing stairs includes a frame body, a fixed step, a handle member and a pair of shaft supporting stands. A chain sprocket assembly has parallel upper and lower drive shafts rotatably supported on the supporting stands, two pairs of sprockets mounted on the drive shafts, a pair of chains wound around the two pairs of chain wheels, and a plurality of equi-spaced movable steps connected to the chains. A speed reduction brake system makes use of the hydraulic resistance to apply a resistance force to reduce the speed of the chains. A control device regulates the resistance force being applied.