Elastomeric spider coupling

Details Elastomeric spider coupling Elastomeric spider coupling

1981-10-29

1985-12-10

Levy, Stuart S.

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Torque transmitted via flexible element

Element positioned between intermeshing teeth on driving and...

464 87, F16D 364

Patent

active

045577030

ABSTRACT:
A coupling for joining a pair of shafts which are rotatably supported without a common axis in such a manner as to accommodate misalignment and provide torsional flexibility includes hubs on the ends of the two shafts, each of the hubs having axially extending cams with opposed surfaces that create openings for insertion of deformable members. A spider-like coupling element formed of a rubber-like material has a central base and legs which extend from the base into the openings to contact the opposed cam surfaces. The legs of the coupling element are circular or elliptical in cross section so that they contact the opposed cam surfaces essentially at lines when there is no load on the coupling and the legs deform in unconstrained compression to increase their area of contact with the opposed cam surfaces as the load increases, creating a nonlinearity in the relationship between the stiffness of the coupling and the applied torque.

REFERENCES:
patent: 2022626 (1935-11-01), Weis
patent: 2074941 (1937-03-01), Ricefield
patent: 2135634 (1938-11-01), Byron
patent: 2295003 (1942-09-01), Natkins
patent: 3638454 (1972-02-01), Croset
patent: 3837179 (1974-09-01), Barth

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