Land vehicles – Wheeled – Occupant propelled type
Patent
1989-06-22
1990-10-30
Hill, Mitchell J.
Land vehicles
Wheeled
Occupant propelled type
280 87051, 296 29, 296177, B62K 506
Patent
active
049663810
ABSTRACT:
A tricycle including a generally horizontal perimeter frame supported above the ground by a pair of rear wheels and a steerable front wheel. The perimeter frame is continuous along one side and front and back while having an opening in the opposite side just ahead of the rear wheel serving as a pass-thru for ease of entry and egress with regard to a seat positioned generally between the rear wheels. An openable gate may be provided which fits into the opening and renders this side of the frame continuous. The device is propelled by foot rotation of a forwardly positioned foot crank which is held for rotation along a generally horizontal axis between the sides of the frame. A chain gear is connected at one end of the foot crank which driveably engages an endless chain positioned in elongated fashion along one side of the frame. The chain then driveably engages a second chain gear connected to one rear wheel. The coasting feature is accomplished in the preferred embodiment by a one-way free wheel hub disposed between the foot crank chain gear and the foot crank end whereby the chain is always in motion whenever the rear wheels are rotating, although the free-wheel hub may also be connected to one rear wheel instead.
REFERENCES:
patent: 279356 (1883-06-01), Denton
patent: 1674272 (1928-06-01), Zander
patent: 1738858 (1929-12-01), White
patent: 2654416 (1953-10-01), Maniscalco
patent: 3592487 (1971-07-01), Mansperger
patent: 4768536 (1988-09-01), Hawkins
Hill Mitchell J.
Prescott Charles J.
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