Reciprocating bicycle drive

Details Reciprocating bicycle drive Reciprocating bicycle drive

1994-01-28

1995-05-30

Tyson, Karin L.

Land vehicles

Wheeled

Occupant propelled type

280260, 745942, B62M 104

Patent

active

054195721

ABSTRACT:
A bicycle drive mechanism which converts linear or elliptical reciprocating motion of the bicycle's pedals to rotary motion of the spindle and the wheels. The mechanism uses a simplified Cardan gear arrangement. There are two arms which rotate in opposite directions to each other. One of the arms is attached to the spindle and the other arm is rotatably connected to the first arm. The pedal is on the opposite end of the second arm from the first arm. The rotation of the two arms relative to each other is achieved through a planetary gear system. Thus the pedals define a linear or elliptical reciprocating path depending on the length of the second arm while imparting rotary motion to the spindle.

REFERENCES:
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patent: 3779099 (1973-12-01), Trammell, Jr.
patent: 3820820 (1974-06-01), Kutz
patent: 4019230 (1977-04-01), Pollard
patent: 4169609 (1979-10-01), Zampedro
patent: 4173154 (1979-11-01), Sawmiller et al.
patent: 4227712 (1980-10-01), Dick
patent: 4561668 (1985-12-01), Klopfenstein
patent: 4564206 (1986-01-01), Lenhardt
patent: 5156412 (1992-10-01), Meguerditchian
patent: 5236211 (1993-08-01), Meguerditchian
patent: 5261294 (1993-11-01), Ticer et al.

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