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US 5,294,140 AGranted
Self-propelled vehicle
OwnerIsaac Rinkewichinventor
Life of this patent
Estimating the term…
Abstract
A self-propelled vehicle includes a frame having a pair of foot treadles mounted in side-by-side relation and depressible with respect to the frame; an overrunning clutch for each of the foot treadles and having a drive member coupled to its respective foot treadle and a driven member coupled to the drive wheel; and a planetary gear assembly for each of the overrunning clutches for coupling the drive member to the respective foot treadle such as to multiply, by a factor of at least two, the displacement of the clutch driven member by its respective foot treadle.
Claims11
A self-propelled vehicle, comprising:
- a frame having a drive wheel at one end and another wheel at its opposite end;
- a pair of foot treadles mounted to the frame in side-by-side relation and depressible with respect to the frame;
- an overrunning clutch for each of said foot treadles and having a drive member coupled to its respective foot treadle and a driven member coupled to said drive wheel;
- and a planetary gear assembly between each of said foot treadles and said drive wheels, and effective to multiply, by a factor of at least two, the displacement of said drive wheel by its respective foot treadle;
- each of said planetary gear assemblies including:
- an internal gear fixed to the frame;
- a plurality of planetary gears meshing with said internal gear and coupled to the respective foot treadle so as to be displaced angularly by the depression of the foot treadle with respect to the frame;
- and a sun gear meshing with said planetary gears and coupled to said driven member of the respective overrunning clutch.
5 more elements
Dependencies are inferred from the claim text.