Machine element or mechanism – Mechanical movements – Grip units and features
Patent
1983-03-29
1985-05-07
Staab, Lawrence J.
Machine element or mechanism
Mechanical movements
Grip units and features
74190, F16H 1500, F16H 1516
Patent
active
045150281
ABSTRACT:
A multi-speed drive has input and output shafts aligned on a first axis and connected to one another by a cone drive which has a plurality of conical surfaces sloped at various angles to form a "composite" cone. The composite cone is connected to the input shaft by a crank and rotates about a second axis which is oblique to, but intersects, the first axis at a point of intersection which is also a point of coincidence of the apexes of the conical surfaces. The composite cone rolls on one of a plurality of annular, conical surfaces, each of which is aligned with one of the conical surfaces on the cone. In accordance with the illustrated embodiment, all of the annular surfaces are free to rotate with respect to the composite cone, with the exception of the single annular surface that the composite cone rolls upon. This surface may be selected by stopping its rotation with a braking device, such as a pin or a prony brake. In the alternative, the conical annular surfaces may be slid axially in and out of engagement with their respective annular surfaces on the composite cone to select the desired output speed. A constant velocity joint connects the composite cone to the output shaft so as to transmit the rotation of the composite cone to the output shaft.
By selecting a single angle (.gamma.) between the first and second axis, and by selecting appropriate angles (.alpha.) for the conical surfaces, various output speeds and torques may be applied to the output shaft for a single input speed according to the ratio (R) wherein: ##EQU1## The aforedescribed multi-speed drive provides positive speed reductions and negative speed reductions. In addition, it provides "overdrive", direct drive, "park " and neutral modes of operation.
REFERENCES:
patent: 20461 (1858-06-01), Wilson
patent: 37165 (1862-12-01), Gary
patent: 738814 (1903-09-01), Kellogg
patent: 840202 (1907-01-01), Davis
patent: 2168956 (1939-08-01), Kohl
patent: 2842001 (1958-07-01), Hunting
patent: 3388607 (1968-06-01), Stober et al.
patent: 3640154 (1972-02-01), Massie
patent: 4466303 (1984-08-01), Stober
"10 Universal Shaft Couplings", pp. 326-327, Mechanisms, Linkages and Mechanical Controls, Fedenco Strasser, 1965.
Francis John H.
Vanderlinden Roy E.
Bednarek Michael David
Frederick Manufacturing Company
Staab Lawrence J.
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