Vehicle suspension member designed to divert crack propagation
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United States of America Patent
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Apr 20, 1993
Issued Date -
N/A
app pub date -
May 11, 1992
filing date -
Mar 11, 1991
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A vehicle suspension member such as a spring leaf or plate (50) is provided with at least one discontinuity therein that extends generally parallel to a longitudinal axis ('L/A') extending therealong between opposite ends thereof and is effective to divert crack propagation in a direction generally parallel thereto. The the discontinuity(s) are provided by methods that include compressing an elongate member (10,12) having enclosed voids (12,16) extending along its central region in one embodiment or by compressing an elongate member (26) having a plurality of enclosed voids (28) extending along its length in another embodiment or by compressing an elongate member (41) having opposite sides (43,43') that, in cross-section, have a concave shape, in yet another embodiments.
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