Device for protecting a groove in a tread
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United States of America Patent
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Sep 13, 2016
Grant Date -
Jun 13, 2013
app pub date -
Feb 22, 2011
filing date -
Feb 22, 2010
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tire for a heavy goods vehicle, having a tread having a tread surface provided in the new state with at least one groove delimited by opposing side walls, this groove opening onto the tread surface in a discontinuous manner by way of a plurality of portions that are open towards the exterior of the tread, these open portions having two ends that are extended under the tread surface by channels having inlets connected to the ends of the open portions, these inlets to the channels having a mean surface area S. This tread is such that each open portion on the tread surface is provided at each of its ends with a closure device for partially closing the cross section of the inlets to the channels when the tire is running and for leaving a passage unclosed.
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