HELICAL COMPRESSION SPRING
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United States of America Patent
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-
N/A
Issued Date -
Oct 4, 2007
app pub date -
Mar 29, 2007
filing date -
Mar 30, 2006
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A helical compression spring (3) with two end turns (7) and a transition area adjoining each end turn (7) as an axle spring for wheel suspensions of motor vehicles, for example, for wheel suspensions with a wheel-guiding MacPherson strut unit (5) which has a helical compression spring (3) and a shock absorber (4), and which is connected, on the one hand, to the body (1), and on the other hand, to the wheel (2), and with a suspension arm (6). The helical compression spring (3) has its vibration strength and the service life greatly increased by the end turns (7) and/or transition regions being machined by worked hardening by rolling and/or by work hardening by hammering.
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