Stretching device for an apex filler strip for tire beads and apex handling system comprising the stretching device
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United States of America Patent
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May 12, 2020
Grant Date -
Aug 17, 2017
app pub date -
Jul 24, 2015
filing date -
Aug 8, 2014
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Provided is a stretching device for stretching an apex filler strip prior to application to a bead for a tire. The stretching device includes a stretching roller and a plurality of guide rollers for guiding the apex filler strip in a loop around the stretching roller. The plurality of guide rollers is arranged for receiving the apex filler strip in an entry orientation and for discharging the apex filler strip in an exit orientation. The plurality of guide rollers is arranged for guiding the one side of the apex filler strip in the entry orientation and the exit orientation under angles different from the support angle (H) with respect to rotation axis (R) of the stretching roller such that the apex filler strip is twisted over a twisting angle of at least forty-five degrees.
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