Spring assemblies
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United States of America Patent
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May 22, 1990
Grant Date -
N/A
app pub date -
Dec 2, 1988
filing date -
May 9, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Assembly comprising a spring in the form of a zig-zag strip of fibre reinforced plastics material with limbs (10-16) connected by reflex portions (17,22), wherein end limbs (10,16) of the spring are mounted at an attitude they would adopt when loaded if they were pin-jointed so as to be free to move as the spring is loaded so that over-stressing of the reflex portions (18,21) of the spring is thereby avoided when the spring is loaded. In modifications of the invention, a spring end limb (39) may be progressively engaged by a surface (42) of a mounting to be supported at a range of attitudes corresponding to a range of spring loads; or a spring mounting may be associated with pivotable members so that end limbs of the spring move arcuately therewith and change their relative attitude as if they were pin-jointed.
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