Land vehicles – Wheeled – Occupant propelled type
Patent
1988-06-15
1989-08-01
Rice, Kenneth R.
Land vehicles
Wheeled
Occupant propelled type
100208, 280287, B62M 110
Patent
active
048528986
ABSTRACT:
An improvement in a pedal-operated polycycle including a hydraulic cylinder in fluid and pressure integral communication with piston means depending from such pedals. Further included is a hydraulic line in substantial co-alignment with the mainframe of the polycycle, an input of the hydraulic line being in communication with the hydraulic cylinder. Further provided is a rear wheel drive secured in rotational relationship with both an output of the hydraulic line and a tangent surface of the rear wheel of the polycycle. Upon reciprocation of a hydraulic piston, hydraulic amplification of the pressure of the pedaling action is transmitted through the hydraulic line to the rear wheel drive means thereby applying a rotational force to the tangent surface of the rear wheel causing the resultant rotation of the wheel and a consequential translational movement of the polycycle. The structural elements of the polycycle are provided with several pivot points and collapse areas such that the entire polycycle may be foldably collapsed into a volume the size of the trunk of an automobile.
REFERENCES:
patent: 732908 (1903-07-01), Thomson
patent: 2793876 (1957-05-01), Allwes
patent: 2919758 (1960-03-01), Newton
patent: 3094187 (1963-06-01), Horwitz
patent: 3580349 (1971-08-01), Brennan
patent: 3635301 (1972-11-01), Tuson
patent: 3807762 (1974-04-01), Ogisu
patent: 4078816 (1978-03-01), Smith
patent: 4462606 (1984-07-01), Hon
Donoghue Teresa
Vilches Jose I.
Rice Kenneth R.
Silverman M. K.
Teresa Donoghue
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