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US 6,779,415 B2Granted
Mechanical transmission
OwnerLaird B. Goginsinventor
Life of this patent
Estimating the term…
Abstract
A constant power mechanical transmission with seamless, ripple free, infinitely variable torque multiplying outputs comprises an input shaft and an output shaft. The input shaft is coupled to a pair of oscillating levers whereby rotation of the input shaft causes oscillation of the oscillating levers in opposite directions. The oscillating levers are linked to the output shaft with one-way clutches in order to cause rotation of the shaft upon movement of the oscillating levers. The rotational speed of the output shaft can be infinitely varied by changing the throw of the oscillating levers.
Claims64
A transmission, comprising:
- an input shaft;
- at least two cam followers;
- at least one camming device contoured to provide substantially constant linear speed to each of said at least two cam followers through each stroke of each of said at least two cam followers, in line contact with said at least two cam followers and coupled to said input shaft;
- at least two levers each coupled to at least one of said at least two cam followers in a manner that causes said at least two levers to pivot in an oscillating manner upon rotation of said input shaft, said at least two levers oscillating out of phase;
- at least two one-way clutches each coupled to one of said at least two levers where movement of said at least two levers causes corresponding rotational movement of at least one of said at least two one-way clutches;
- and
- an output shaft coupled to said at least two one-way clutches, said at least two one-way clutches capable of causing substantially ripple free rotation of said output shaft.
4 more elements
A transmission, comprising;
- an input shaft;
- at least one camming device coupled to said input shaft;
- at least two cam followers in line contact with said at least one camming device;
- at least two oscillating members, each pivotoble about an axis and each coupled to one of said at least two cam followers such that rotation of said input shaft causes out of phase oscillation of said at least two oscillating members;
- at least two clutching devices each coupled to at least one of said at least two oscillating members;
- and
- an output shaft coupled to said at least two clutching devices, said output shaft being driven by oscillation of said at least two oscillating members which in turn drive said at least two clutches to rotate said output shaft in a substantially ripple free manner.
4 more elements
A transmission, comprising:
- an input shaft;
- an output shaft;
- at least one oscillator contoured to provide select constant output speed of said output shaft driven by said input shaft;
- at least two oscillator followers moveable by said at least one oscillator;
- at least two levers, each coupled to one of said at least two oscillator followers for movement therewith and each pivotable about a fulcrum, said at least two levers oscillating out of phase;
- and
- at least two slide members, each coupled to one of said at least two levers for back movement of said at least two slide members along with the movement of said at least two levers, said at least two slide members driving said output shaft in a substantially ripple free manner;
- whereby translation of said at least two levers relative to said slide members varies a rate of rotation of said output shaft relative to said input shaft, said rate of rotation being constant for a given position of said at least two levers relative to said slide members.
5 more elements
A transmission, comprising:
- an input shaft;
- an output shaft;
- a concentric shaft slidably splined on said input shaft;
- a control slide fixedly coupled to said concentric shaft and being slidably guidable relative to said input shaft;
- at least one cam defining a cam surface, said cam surface being contoured to provide select constant output speed of said output shaft and fixedly secured relative to said concentric shaft;
- at least two cam followers in line contact with said at least one cam;
- at least two levers rotatably coupled to each of said at least two cam followers;
- at least one selectively locatable power take-off on each said at least two levers;
- and
- connection means for interconnecting said power take-off to said output shaft.
7 more elements
Dependencies are inferred from the claim text.