Bicycle pedal that moves in a rectilinear path

Details Bicycle pedal that moves in a rectilinear path Bicycle pedal that moves in a rectilinear path

1995-10-03

1997-11-25

Johnson, Victor E.

Land vehicles

Wheeled

Occupant propelled type

280257, 280252, 474160, B62M 100

Patent

active

056903456

ABSTRACT:
A rectilinear drive assembly for a bicycle. The drive assembly includes a pair of tracks that each have a pair of opposing side portions joined by a pair of opposing radial end portions which together define a rectilinear path. The drive assembly also has a pair of pedals that are coupled to the track by a pair of wheel assemblies. The wheel assemblies follow the outline of the tracks so that the pedals move in a rectilinear path. The linear movement of the pedal provides a more efficient transfer of power from the rider's legs to the drive assembly. Each wheel assembly has a pair of inner wheels that roll along an inner surface of the track and a pair of outer wheels that roll along an outer surface of the track. The outer wheels are separated by a distance greater than the separation of the inner wheels to compensate for the different radiuses of the inner and outer surfaces at the radial end portions of the track. The wheel assemblies are connected to chains which rotate a number of sprockets. The sprockets are coupled to the rear wheel of the bicycle. The rectilinear path of the track provides an automatic return path for the rider during each pedal cycle.

REFERENCES:
patent: 3820820 (1974-06-01), Kutz
patent: 4169609 (1979-10-01), Zampedro
patent: 4281845 (1981-08-01), Brown
patent: 5104137 (1992-04-01), Kilts
patent: 5156412 (1992-10-01), Meguerditchian
patent: 5540111 (1996-07-01), Barnett et al.

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