Exercise devices – Involving user translation or physical simulation thereof – Treadmill for foot travel
Patent
1993-07-08
1994-06-14
Crow, Stephen R.
Exercise devices
Involving user translation or physical simulation thereof
Treadmill for foot travel
A63B 2202
Patent
active
053205898
ABSTRACT:
A treadmill which includes a generally rectangular frame defining a walking plane, said frame having laterally disposed parallel trending side rails (18); a drive roller, said drive roller having walls defining a hollow cylinder; a free roller (10), said free roller (10) having walls defining a hollow cylinder, the walls of said drive and said free rollers (10) each having an annular groove (38) in the outer walls (36) thereof, the groove (38) located closer to an end of said rollers (10) than the longitudinal center line of said frame; shaft (12) for mounting said rollers (10) between said rails (18) and in generally perpendicular relation; an endless belt (20) of flexible material having an outer walking surface and an inner surface, the inner surface having an inwardly projecting alignment ridge (44) mating with said grooves (38) of said rollers (10) to allow a substantially flush fit of said rollers (10) against said belt (20) and to prevent said endless belt (20) from wandering on said rollers (10).
REFERENCES:
patent: 152628 (1874-06-01), Greaves
patent: 3082858 (1963-03-01), King
patent: 3554541 (1971-01-01), Seaman
patent: 3980174 (1976-09-01), Conrad
patent: 4008801 (1977-02-01), Reilly et al.
Mann James A.
Singleton James M.
Crow Stephen R.
JAS Manufacturing Co., Inc.
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