Land vehicles – Wheeled – Occupant propelled type
Patent
1992-10-14
1994-03-01
Hill, Mitchell J.
Land vehicles
Wheeled
Occupant propelled type
280253, 280301, B62M 104
Patent
active
052900541
ABSTRACT:
A linear drive recumbent cycle (10) having linearly reciprocating pedals (68a,b) located approximately above the front wheel (14) in order to achieve a short wheel base recumbent bicycle design with the crank (42) located low between the wheels and with the seat located near or behind the center of gravity of the bike. The top extremities of a pair of pedal sliders (32a,b) are journalled for independent pendulum-type oscillation in a pedal-slider bracket (28) which is connected to a frame (12) through a front tube (30). The linearly reciprocating pedals (68a,b) are attached to the lower extremity of the pedal-sliders (32a,b) and are rotateably linked to the crank (42) through a pair of curved links (34a,b) so as to transfer power from the pedals (68a,b) to the crank (42). The pedal-sliders are short and straight whereby saving weight. The axis of reciprocative movement of the pedal-sliders (32a,b) cross above the axis of the crank (42) giving it an inherent tendency to rotate forward whereby eliminating crank kick back or crank getting stuck during use.
REFERENCES:
patent: 2587790 (1952-03-01), Thalman
patent: 4878684 (1989-11-01), Lemle
SAE Technical Paper #840021, Evolution of Recumbent Bicycles and the Design of the Avatar Bluebell by D. G. Wilson, pp. 1 & 6. 1984.
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