Flexible coupling
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United States of America Patent
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Dec 31, 2002
Grant Date -
N/A
app pub date -
Apr 2, 2001
filing date -
Oct 2, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A flexible annular coupling made of composite material and an even number of relatively thicker fixing portions (10) spaced apart circumferentially around the coupling for connection to two rotary members to be coupled by the coupling and a flexible leaf (11) extending lengthwise between each two adjacent fixing portions. Each leaf includes a relatively thinner central part (11a) and a transition portion (13) of gradually increasing thickness between the ends of the central part and the thicker fixing portions. The coupling is constructed such that the central part (11a) of at least each circumferentially alternate leaf will always be displaced axially in the same predetermined direction (A) transverse to its length when the leaf is caused to buckle by compressive force(s) acting between the fixing portions at the ends of the leaf. The displacement may be obtained by curving the central part, by suitably shaping the transitional portions or by making the central part of two layers of different stiffness.
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