Patent ID: 6692410
Filing Date: 2004-02-17
Classification: A63B

Abstract:
A compact step simulator with double inertial wheels comprising:a rack having a front cylinder stand, a vertical post having bent lower portion projected upward from a middle of said front cylinder stand, a tilt plate having a front end connected to a lower inner periphery of said vertical post and a rear end connected to a middle of a rear cylinder stand, a pair of U-shaped pivots spacedly projected upward from top of said rear cylinder stand, a pair of rollers rotatably engaged in top of said U-shaped pivots through a pair of adjusting plate respectively and secured by bolts and nuts, said adjusting plates each having a plurality of screw holes spacedly formed in rear side a hub transversely disposed to a junction of said vertical post and said tilt plate, an axis disposed into said hub, a pair of bearings respectively wrapped on two ends of said axis inside said hub, a positioning plate projected upward from a top of said tilt plate abutting said hub, a handle, a speed governor and an indicator respectively disposed to upper portion of said vertical post; a pair of inertial wheels each having a central bore respectively and coaxially secured to two ends of said axis by nuts and washers and an eccentric arbor projected outward from an outer surface abutting their rims thereof and positioned symmetrical to each other; a pair of pedal seats each having an axial hole in front end movably engaged with said eccentric arbors respectively and secured by screws and washers, a rear end longitudinally sliding about on top of said rollers of said U-shaped pivots, and a pair of pedals respectively secured to a top of said pedal seats abutting the front end thereof; an H-shaped arcuate resistance plate having a pair of ears on a middle portion thereof facing said vertical post, said ears rotatably connected to a U-shaped connecting plate other end of said connecting plate connected to a positioning plate located on a top of said tilt plate by a screws, a friction surface on inner side of said H-shaped arcuate resistance plate and contacting to a rim of said inertial wheels for frictionally slow down the rotation of said inertial wheels; a wire connecting said H-shaped arcuate resistance plate with said speed governor on said vertical post through said positioning plate; a pair of fixing screws insertible into a through hole in a rear side of each of said U-shaped pivots and screwed to one of the screw holes of said adjusting plates, said fixing screws each having a swivel knob at outer end; whereby the height of said adjusting plates is adjustable.