Non-tipping tricycle

Details Non-tipping tricycle Non-tipping tricycle

1995-08-25

1998-03-24

Johnson, Brian L.

Land vehicles

Wheeled

Occupant propelled type

280261, 280266, 2801122, 474135, 474 63, B62K 504

Patent

active

057304530

ABSTRACT:
A tricycle has two non-steerable rear wheels and a single steerable front wheel. One of the rear wheels is driven by a chain-sprocket drive system that includes a drive sprocket mounted on a front frame and a driven sprocket mounted on a rear frame. The front frame is tiltable, or swingable, from an upright position to a leaning position to minimize the potential for turnover of the tricycle during turning maneuvers or riding on rough terrain. Special idler sprockets are provided for the drive chain, to keep the chain in mesh with the drive sprocket when the front frame is in a leaning position.

REFERENCES:
patent: 3592487 (1971-07-01), Mansperger
patent: 3696681 (1972-10-01), Fetter et al.
patent: 3698502 (1972-10-01), Patin
patent: 4132435 (1979-01-01), Wilson
patent: 5240267 (1993-08-01), Owsen
patent: 5568935 (1996-10-01), Mason

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