Land vehicles – Wheeled – Occupant propelled type
Patent
1997-06-09
1999-11-23
Oberleitner, Robert J.
Land vehicles
Wheeled
Occupant propelled type
280251, 74 892, B62M 100
Patent
active
059886625
ABSTRACT:
This invention relates to an improved lever driven bicycle including a shifting mechanism for controlling a drive ratio between the oscillating lever and the drive wheel. The drive lever arrangement may be located about the front or rear wheels of the bicycle and, when about the rear wheel, may include a sole lever or dual levers. The drive lever arrangement includes a drive lever, a force applicator, a shifting mechanism, and a force converter which together transform the oscillating displacement of the lever to a rotation of the drive wheel. The shifting mechanism includes a slide block located about the lever which engages with the drive lever upon downward motion of the drive lever and controllably slides along the drive lever upon upward motion of the drive lever. The position of the slide block corresponds to a drive ratio between the drive lever and the drive wheel.
REFERENCES:
patent: 3039790 (1962-06-01), Trott
patent: 3759543 (1973-09-01), Clark
patent: 3834733 (1974-09-01), Harris
patent: 3913945 (1975-10-01), Clark
patent: 3954282 (1976-05-01), Hege
patent: 3984129 (1976-10-01), Hege
patent: 4053173 (1977-10-01), Chase, Sr.
patent: 4300784 (1981-11-01), Efros
patent: 4421334 (1983-12-01), Efros
patent: 4445701 (1984-05-01), Stroud
patent: 4533152 (1985-08-01), Clark
patent: 4549874 (1985-10-01), Wen
patent: 4574649 (1986-03-01), Seol
patent: 4666174 (1987-05-01), Efros
patent: 5335927 (1994-08-01), Islas
patent: 5716069 (1998-02-01), Bezerra et al.
patent: 5785337 (1998-07-01), Ming
"Toying With Ideas Leads to Hit Products", Design News, pp. 19-20, Dec. 18, 1995.
Lipka Pamela J.
Oberleitner Robert J.
Volunteers for Medical Engineering
LandOfFree
Lever driven bicycle does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Lever driven bicycle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lever driven bicycle will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1212908