초록 ▼

An elongated frame retains a pair of drums, sheaves, pulleys or the like, at the ends of the frame, one of which is preferably power driven; the movable surface includes a plurality of step elements which have a flat top surface, preferably covered with a resilient surfacing, such as foam rubber, ca

An elongated frame retains a pair of drums, sheaves, pulleys or the like, at the ends of the frame, one of which is preferably power driven; the movable surface includes a plurality of step elements which have a flat top surface, preferably covered with a resilient surfacing, such as foam rubber, carpeting, or the like, to form an endless flexible belt which may be a composite of an endless belting to which slats are secured. The slat elements span the width of the apparatus and, in cross section, preferably have T-shape. A series of back-up support rollers with lateral guide flanges are located beneath the upper run of the movable support surface, with at least one elastic cushion support between the rollers and the slats, for example formed of an endless rubber V-belt in contact with the lateral flanges of the support rollers to accept lateral forces arising in use.

대표청구항 ▼

Movable surface apparatus for physical exercise and training comprising: an essentially rectangular support frame (2); two rotatable end roller means (10; 25) having parallel axes of rotation supported on said frame (2), located adjacent the narrow sides of the frame, at least one of the end roller

Movable surface apparatus for physical exercise and training comprising: an essentially rectangular support frame (2); two rotatable end roller means (10; 25) having parallel axes of rotation supported on said frame (2), located adjacent the narrow sides of the frame, at least one of the end roller means having a toothed or ribbed circumference; two endless toothed or ribbed connecting belt means (5, 5′) looped about said toothed or ribbed end roller means (10, 25) and located laterally spaced adjacent the lateral sides, and in alignment with said rollers; the end roller means having a diameter large with respect to the thickness of the toothed or ribbed connecting belt means, the ribs on the connecting belt means being in engagement with the gaps between the ribs or teeth on the surfaces of the end roller means and, in the course of travel about the end roller means, being aligned and oriented perpendicularly to the axes of rotation of said end roller means; a plurality of closely adjacent transversely positioned step elements (4, 4′, 114) secured to the toothed or ribbed connecting belt means, and forming with said connecting belt means an endless continuous movable, essentially even surface assembly looped about said rotatable end roller means to form an upper run and a lower run; a plurality of support rollers (12, 12′) located beneath the upper run with their axes of rotation parallel to each other and to the axes of rotation of the toothed or ribbed end roller means (10, 25), said plurality of support rollers being located in at least two lines adjacent the lateral sides of the frame and secured thereto, the axes of rotation of said support rollers being independent of the axes of rotation of the toothed or ribbed end roller means, said support rollers having a diameter which is small with respect to that of the toothed or ribbed end roller means, and at least one lateral end face of at least some of the support rollers in each line being formed with a radially projecting flange (112); and at least two resilient, endless belts (13) looped about the terminal support rollers (12a) of said lines of the plurality of support rollers (12, 12′, 12a) and located between said rollers and the underside (14) of the upper run of said support surface to support the step elements throughout their travel lengthwise of the frame, and hence of the apparatus, upon rotation of at least one of said end roller means and provide a yielding, resilient, independently movable cushion support between the step elements and the support rollers.