Land vehicles – Wheeled – Occupant propelled type
Patent
1975-10-10
1976-12-14
Wood, Jr., M. H.
Land vehicles
Wheeled
Occupant propelled type
280239, B62D 6112
Patent
active
039971856
ABSTRACT:
A standard bicycle frame is modified by rigidly and permanently securing two generally parallel integral tubular members extending from the head tube of the frame past the seat support tube and then past the axis of the rear wheel and beyond the same rearwardly to a point which will touch the ground when the center of gravity of a rider's body, riding on the rear wheel only, moves backward and approaches dead center over the axis of the rear wheel. These two tubular members are attached to the head tube and one to each side of the seat support tube in a rigid and permanent manner, and are detachably secured one at each end of the opposite ends of the rear wheel axial shaft. Another improvement consists of the head tube extending down to a crosswise crown at the lower end of the head tube, and two generally parallel additional integral tubular members forming a fork extending downwardly and forwardly from the crown, one on each side of the front wheel position, said fork tubular members having through openings to receive the ends of the front wheel axial shaft, and these two generally parallel additional integral members extending forwardly substantially horizontally beyond said shaft-receiving opening to a point beyond that occupied by the front end of a front wheel, and there having structure for attaching a bumper.
REFERENCES:
patent: 853115 (1907-05-01), Reuss
patent: 2558880 (1951-07-01), Sartain
patent: 3023027 (1962-02-01), Franciscus
patent: 3096100 (1963-07-01), Clarke et al.
patent: 3284096 (1966-11-01), Hansen et al.
patent: 3653679 (1972-04-01), Howard
Rubenstein Jack D.
Wood, Jr. M. H.
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