Land vehicles – Wheeled – Occupant propelled type
Patent
1983-10-11
1986-01-14
Peters, Jr., Joseph F.
Land vehicles
Wheeled
Occupant propelled type
280253, B62M 100
Patent
active
045642060
ABSTRACT:
A pedal drive for a bicycle having a driven wheel rotatably mounted to a frame, including a first sprocket rotatably mounted to the frame; a second sprocket rotatably mounted to the frame below the first sprocket and in planar alignment with it at a location spaced apart from the first sprocket; an endless chain extending about and interconnecting the first and second sprockets; a third sprocket rotatably mounted to the frame for rotary movement in response to the rotary movement of the first and second sprockets; an endless chain extending about and interconnecting the third sprocket and a sprocket attached to the driven wheel; left and right upper crank arms attached to the first sprocket and extending in generally opposite directions from each other; left and right lower crank arms attached to the second sprocket and extending in opposite directions from each other; a left pedal arm carrying a left pedal and pivotally connected to the left upper crank arm; a right pedal arm carrying a right pedal and pivotally connected to the right upper crank arm; a left link pivotally connected to the left pedal arm and pivotally connected to the left lower crank arm; and a right link pivotally connected to the right pedal arm and pivotally connected to the right lower crank arm. The upper and lower left-side crank arms are rotationally displaced from each other by at least 60 degrees, as are the upper and lower right-side crank arms, with the lower crank arms rotationally leading the upper crank arms. The left and right links have a length exceeding the left and right lower crank arms, and the left and right pedal arms exceed the left and right upper crank arms.
REFERENCES:
patent: 3132877 (1964-05-01), Pontin
patent: 3779099 (1973-12-01), Trammell, Jr.
patent: 3820820 (1974-06-01), Kutz
McGiehan Donn
Peters Jr. Joseph F.
LandOfFree
Pedal drive does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pedal drive, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pedal drive will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-427621