Continuously variable compound lever human powered transmission
OwnerMichael Owen Davisinventor
Life of this patent
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Abstract
A human powered transmission for self propelled vehicles having oscillating power input levers displacing a pivoted power input member. The power input member pivotally journaled to a power output lever, the power output lever bearing on a fulcrum roller. The fulcrum rollers having a mechanism for adjusting the fulcrum roller along a predetermined length of the power output lever. Power output lever having a power output pivot, the power output pivot is connected to a flexible member for transferring tensile force to a unidirectional torque converter.
Claims16
A human powered transmission mechanism having a structural framework, a left and a right power input lever, said power input levers each having a means of receiving oscillatory displacement, each said power input lever being fastened to a power input shaft each said power input shaft being journaled to said structural framework, to each said power input shaft a power input member is fastened, to each said power input member a power output lever is pivotally fastened, each said power output lever bearing upon a fulcrum roller, the transmission having a means of adjusting the fulcrum rollers position along a predetermined length of each said power output lever, each said power output lever having a power output pivot at the end that is substantially opposite the end of the pivotal connection to said power input member.
A human powered transmission mechanism having a structural framework, a left and a right power input lever, each said power input lever having a means of receiving oscillatory displacement, each said power input lever being connected to a power input shaft upon which said power input levers oscillate, each said power input shaft being journaled to said structural framework, to each said power input shaft a power input member is secured there by communicating oscillatory displacement to each said power input member, each said power input member having a secondary pivot to which a power output lever is connected there by communicating oscillatory displacement to each said power output lever, each said power output lever is disposed against a fulcrum roller upon which each said power output lever oscillates in a rocking motion, the transmission having a means of adjusting the fulcrum rollers position anywhere along a predetermined length of each said power output lever there by varying the leverage of both said power input levers, each said power output lever having at the ends away from said secondary pivot a connection to a means of conveying oscillatory tensile force from the transmission.
Dependencies are inferred from the claim text.