Treadle-type vehicle having a foldable front wheel shaft

Details Treadle-type vehicle having a foldable front wheel shaft Treadle-type vehicle having a foldable front wheel shaft

1993-01-21

1994-02-08

Focarino, Margaret A.

Land vehicles

Wheeled

Occupant propelled type

2802881, 280265, 280282, B62K 1500

Patent

active

052843556

ABSTRACT:
A human-powered vehicle includes a folding front axle with front wheels, at least one rear wheel, and rear castors. The vehicle may stand upright on the castors and the rear wheel in order to reduce the parking area. The vehicle driver reciprocates a manual lever to drive the rear wheel through a roller chain which runs from the lever to a tensioning means through a free-wheel hub on a rear wheel shaft. The driver's feet are used to steer by pushing against the front axle assembly. The front axle assembly has two half-axles and a central member to which they are hinged. The assembly is locked into a rigid configuration for running the vehicle, and when unlocked, the half-axles and the central member fold up into the shape of an "N" to reduce the axle length. The combination of standing upright and folded axle make the parked "footprint" very small.

REFERENCES:
patent: 4203612 (1980-05-01), Feikema
patent: 4431205 (1984-02-01), Speicher et al.
patent: 4925200 (1990-05-01), Jones
patent: 5145196 (1992-09-01), Langkamp

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