Device for narrowing the breadth of a sheet spring material in an apparatus for manufacturing a taper leaf spring
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United States of America Patent
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Sep 22, 1981
Grant Date -
N/A
app pub date -
May 30, 1979
filing date -
May 30, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for narrowing the breadth of a sheet spring material in an apparatus for manufacturing a taper leaf spring by which the sheet spring is previously subjected to breadth narrowing operation with edge rollers before taper rolling. A shape for narrowing the breadth of a sheet spring material is calculated so that a product after rolling may be within the tolerance. Then, a shape of template thus obtained is detected by a pair of detecting rollers to regulate the interval between the work rollers automatically before taper rolling.
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