Bicycle drive system

Details Bicycle drive system Bicycle drive system

1976-02-25

1977-12-13

Peters, Jr., Joseph F.

Motor vehicles

Power

Electric

180 33C, 200 6189, 280214, 310 14, 318135, B60K 100

Patent

active

040624218

ABSTRACT:
A power drive system to augment pedalling of a bicycle including a reversible magnetically balanced electromagnetic field positioned in proximity to one wheel of the bicycle, at least one permanent magnet mounted on the wheel to pass through the electromagnetic field when the wheels are rotated by conventional pedalling, and a reversing switch responsive to the position of the permanent magnet to alternate the polarity of the electromagnetic field thereby alternately attracting the permanent magnet into the electromagnetic field and thereafter repelling the permanent magnet outwardly from the electromagnetic field. A reed type switch is positioned to respond to the movement of the permanent magnet to reverse the polarity of the electromagnetic field. A proximity switch is triggered by conventional pedalling to turn off the power when pedalling ceases. Thus, the power drive system assists in the pedalling but does not provide power when the cyclist is coasting.

REFERENCES:
patent: 552312 (1895-12-01), Battey
patent: 2179418 (1939-11-01), McDonald
patent: 2794929 (1957-06-01), Adamski
patent: 3441819 (1969-04-01), Palmero
patent: 3533484 (1970-10-01), Wood
patent: 3548965 (1970-12-01), Pierro
patent: 3555380 (1971-01-01), Hings
patent: 3884317 (1975-05-01), Kinzel
patent: 3939932 (1976-02-01), Rosen

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