Friction gear transmission systems or components – Plural gearing in series – Flexible belt in drive train
Patent
1992-12-03
1993-12-07
Braun, Leslie A.
Friction gear transmission systems or components
Plural gearing in series
Flexible belt in drive train
476 5, 476 16, 476 35, F16H 1508
Patent
active
052679195
ABSTRACT:
An infinitely variable-speed mechanic drive apparatus is capable of providing a positive non-slip drive and includes a support; a driving shaft mounted rotatably on the support; a driven gear mounted axially and rotatably on the driving shaft; an intermediate transmission member disposed in a transverse direction to and mounted rotatably on the driving shaft. The intermediate transmission member includes an intermediate shaft, a driving wheel mounted rotatably on and shiftable in an axial direction of the intermediate shaft, the driving wheel being in frictional contact with the support, a biasing member biasing the driving wheel towards the axis of the driving shaft, and a driven transmission shaft rotatable around an axis parallel to the longitudinal direction of the intermediate shaft. The driven transmission shaft has a worm member which meshes with the driven gear, and a first drive member transmitting the rotating force of the driving wheel to the driven transmission shaft. A linkage member has an end fixedly mounted on the driving shaft and a free end which engages the biasing member in such a manner that the intermediate transmission member will rotate with the driving shaft while the biasing member is urged by the shifting movement of the driving wheel in the axial direction as a result of centrifugal force.
REFERENCES:
patent: 423864 (1890-03-01), Farmer, Jr.
Braun Leslie A.
Trousdell William O.
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