Flexible dual-rate coupling

Details Flexible dual-rate coupling Flexible dual-rate coupling

1993-12-06

1996-11-12

Stodola, Daniel P.

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

Torque transmitted via flexible element

Nonmetallic element

464160, F16D 376

Patent

active

055734626

ABSTRACT:
A flexible dual-rate coupling (20) including an outer member (22), and inner member (24), and a free-floating intermediate member (26). First and second elastomers (28) and (44) provide the dual-rate spring rate characteristics for the coupling (20). First elastomer section (28) is disposed between pocket (50) formed in outer member (22) and outer surface (52) of intermediate member (26) and provides a first spring rate. Second elastomer (44) is disposed between intermediate member (26) and inner member (24) and provides a second spring rate. At a low load, one of the elastomer sections (28) or (44) is delimited (snubbed) to provide dual-rate features for the flexible coupling (20). Both the sections (28) and (44) are preferably pure shear sections which are bonded in the same bonding operation.

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