Land vehicles – Wheeled – Occupant propelled type
Patent
1998-02-18
2000-06-27
Boehler, Anne Marie
Land vehicles
Wheeled
Occupant propelled type
188 17, 280252, 280254, 280282, 280 87041, B62M 104
Patent
active
06079724&
ABSTRACT:
A tricycle includes a base plate, and two pedals and a brake pedal arranged near the rear end of the base plate. The pedals are each connected to a rack rod. The base plate has two lugs at both sides, and a rotary shaft is pivotally mounted at the lugs. The rotary shaft includes a friction roller in the middle and two ratchet wheels near both ends thereof. Compression springs are disposed between the base plate and the three pedals. By pressing the two pedals, the ratchet wheels on the rotary shaft will rotate to cause two large wheels mounted at both ends of the rotary shaft to move forward. The ratchet rods are reset by the springs to get ready for the next action. The brake pedal includes a brake lever at a lower end thereof. When the brake lever displaces downwardly, the friction roller will be pressed to stop rotation of the rotary shaft. A wheel mounting frame is disposed near a front end of the base plate for mounting a small wheel. A retractable lever is disposed on the base plate and connected to the wheel mounting frame. The retractable lever is provided with a steering frame-shaped handle. When the pedals are continuously pressed, the large wheels will be brought to move forward.
REFERENCES:
patent: 325338 (1885-09-01), Hall
patent: 1014279 (1912-01-01), Auger
patent: 1072284 (1913-09-01), Widera
patent: 1127035 (1915-02-01), Linam
patent: 1362407 (1920-12-01), Foans
patent: 1391165 (1921-09-01), Best
patent: 1449643 (1923-03-01), Wenderhold
patent: 3164391 (1965-01-01), O'Neal
patent: 4582342 (1986-04-01), Lew et al.
patent: 5848660 (1998-12-01), McGreen
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