Bicycle with folding frame

Details Bicycle with folding frame Bicycle with folding frame

1991-03-28

1993-02-16

Focarino, Margaret A.

Land vehicles

Wheeled

Occupant propelled type

280287, B62K 1500

Patent

active

051864827

ABSTRACT:
Bicycle with folding frame having a frame defining a lower longitudinal member which rotatably supports a rear wheel and a pedal crank shaft. A saddle upright and a handlebar upright are hinged to the lower longitudinal member, are substantially parallel to one another and are joined by an upper cross-member which is substantially parallel to the lower longitudinal member and is hinged to the uprights to provide an articulated-parallelogram coupling. A steering sleeve is articulated to the handlebar upright, supports a front wheel, and is associated with a handlebar. A locking bar for retaining the frame in operating position is furthermore provided and is arranged diagonally to the articulated parallelogram.

REFERENCES:
patent: 3990717 (1976-11-01), Best
patent: 4443023 (1984-04-01), Ishibashi
patent: 4460191 (1984-07-01), Ishibashi et al.
patent: 4844494 (1989-07-01), Blanchard
patent: 4895386 (1990-01-01), Hellestam et al.

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