Chain driven, continuously infinite variable speed transmission system
OwnerFrank Fragnitoinventor
Life of this patent
Estimating the term…
Abstract
A chain driven and receiving, continuously infinite variable speed transmission system comprising a pair of cones positioned in the same plane with the smaller diameter of each cone in proximity with the larger diameter of the other and encircled by a continuous flexible chain having pins extending therefrom for engagement and disengagement with spiral gears on the cones positioned in grooves parallel to the longitudinal axes of the cones. Either of the cones may be driven and the chain transmits the power to the other cone at a speed determined by the position of the chain relative to the cones. The system employs a planetary gear system for zero and reverse rotation of the variable speed output from the driven cone.
Claims8
A chain driven and receiving, continuously infinite variable speed transmission system comprising frame means, input driving means rotatably mounted within said frame means, a planetary gear system incorporating means for zero and reverse rotation of said input driving means within said frame means and coupled to said input driving means, a first hollow cone coupled to said input driving means for rotation within said frame means, a second hollow cone having means for rotation within said frame means, longitudinal axes of said cones being parallel and lying in the same plane and positioned to operate with the end of the peripheral surface having the largest circumference of each cone proximate to the end of the peripheral surface having the smallest circumference of the other cone, a plurality of chain receiving means or each cone having means for movement along the longitudinal axes of each cone, a continuous flexible chain fabricated of individual links having protrusions extending out of said links for engaging said chain receiving means encompassing said cones for driving said cones or being driven by said cones, said chain receiving means for engaging said continuous flexible chain comprising a pair of threaded freely rotating spiral gears having threads for engaging said protrusions extending out of said links of said flexible chain, means for positioning said chain and chain receiving means anywhere between the opposite ends of said cones, and variable speed output means coupled to said input driving means and said second cone through said planetary gear system.
A chain driven continuously variable speed transmission system comprising frame means, input driving means for rotation within said frame means, a first conical gear coupled to said input driving means, a second conical gear having its longitudinal axis parallel to the longitudinal axis of said first conical gear and lying in the same plane as that of said first conical gear with the end of the second conical gear having the largest diameter positioned in relative proximity to the end of said first conical gear having the smallest diameter, and the end of said second conical gear having the smallest diameter positioned proximate to the end of the first conical gear having the largest diameter, a continuous flexible chain having pins extending therefrom and encircling said first and second gears and being driven by said first conical gear to drive said second conical gear, a plurality of flexible chain receiving means comprising spiral gears within said first and second conical gears engaged by said pins extending from said flexible chain and an output shaft coupled to said second conical gear for transmitting power to a load.
Dependencies are inferred from the claim text.