Machine element or mechanism – Mechanical movements – Grip units and features
Patent
1985-05-16
1987-12-22
Braun, Leslie
Machine element or mechanism
Mechanical movements
Grip units and features
74200, F16H 1500
Patent
active
047139765
ABSTRACT:
A differential mechanism can be driven by either or both of two inputs to provide an output rotational speed that is variable and can exceed, be equal to, can be less than, and can even be opposite to the input rotational speed. The differential uses a self-centering spherical element made of a structural thermoplastic material and which engages a pair of friction rings, one connected with an input assembly and one connected with an output assembly. A loading arrangement resiliently biases the spherical element into frictional engagement with the friction rings in a manner which is independent of the orientation of the spherical element with respect to the friction rings. Control of the rotational position of the spherical element is effected by an axially actuatable rod or a centrally disposed linkage so that the output rotational speed can be controlled. Powered control of the position of the spherical element can be provided.
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patent: 4448087 (1984-05-01), Barzel
Braun Leslie
Heinrichs Vern
Novais David
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