Land vehicles – Wheeled – Occupant propelled type
Patent
1993-08-09
1995-07-25
Focarino, Margaret A.
Land vehicles
Wheeled
Occupant propelled type
280260, 745942, B62M 904
Patent
active
054355834
ABSTRACT:
A clutch operated, bi-directional bicycle gear box assembly for forward and rearward peddling to still move the bicycle forward, comprised of: a gear box housing, the housing attached to the bicycle frame; a pair of foot pedals; a pair of crank arms; a bottom bracket spindle; a sprocket; a sprocket drive gear; a clutch subassembly, the subassembly consisting of a pair of clutch disks attached to a spacer, each clutch disk having a pair of pins; a reversing drive gear; a transfer gear, and; a shifting lever. The housing provides attachment of the components. The crank arms, attached to each pedal and to the bottom bracket spindle, transfer the pedaling motion to the bottom bracket spindle. Once the gear is in the first position, the rider can pedal forward (clockwise) in order to induce forward motion in the bicycle. With the shifting lever in the first position, the shifting lever moves the clutch subassembly into a first position, causing the pins of the first clutch disk to slide into channels in the sprocket drive gear. When the shifting lever is in the second position, the shifting lever moves the clutch subassembly to the second position, moving the second clutch disk moves into position and the connecting pins sliding into the channels of the reversing drive gear. The motion of the reversing drive gear is transferred to the sprocket by means of the transfer drive gear which is in geared connection between the reversing and the sprocket drive gears.
REFERENCES:
patent: 504168 (1893-08-01), Morris
patent: 587787 (1897-08-01), Buckler
patent: 603326 (1898-05-01), Feingold
Focarino Margaret A.
Hurley Kevin
Williams Ronald C.
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