Walker apparatus with left and right foot belts

A walker apparatus, comprising:

• a base attachable to a functional support frame, said base having front left and right sides, a pair of spaced front brackets disposed adjacent to said front left and right sides, a first shaft extending from said front left side to said front right side, said first shaft having two ends fixed respectively at said front brackets, rear left and right sides, a pair of spaced rear brackets disposed adjacent to said rear left and right sides, and a second shaft extending from said rear left side to said rear right side, second shaft having two ends fixed respectively at said rear brackets;
• a pair of front rollers mounted rotatably on said first shaft and disposed respectively on said front left and right sides, said first shaft having a central portion provided with a spacer to separate said front rollers and two opposite end portions provided with a pair of retainers to limit lateral movement of said front rollers;
• a pair of rear rollers mounted rotatably on said second shaft and disposed respectively on said rear left and right sides, said second shaft having a central portion provided with a spacer to separate said rear rollers and two opposite end portions provided with a pair of retainers to limit lateral movement of said rear rollers;
• endless left and right foot belts, each of which engage a respective one of said front rollers and a respective one of said rear rollers;
• support means, disposed between said pair of front rollers and said pair of rear rollers, for providing a supporting surface for said left and right foot belts;
• whereby, moving weight moving separately on said left and right foot belts between said pair of front rollers and said pair of rear rollers will cause said left and right foot belts to move and said front and rear rollers to rotate, said support means comprising an elongate substrate plate having left and right sides, a flat slippery top surface and two slippery arcuate ends, said elongate substrate plate being secured to said base by angles connected to the left and right sides of said substrate plate;
• and
• means associated with said foot belts to provide slippery contact with said slippery top surface of said substrate plate.