Pneumatic tire with tie bars
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United States of America Patent
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Issued Date -
Mar 20, 2008
app pub date -
Sep 12, 2006
filing date -
Sep 12, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A tire tread (1) includes tie bars (13,14,15,16) in its secondary grooves (9,10,11,12). These tie bars (13,14,15,16) are rounded and taper off on their sides so that the contour of such a tie bar (13,14,15,16) in cross-section along a groove (9,10,11,12) constitutes a continuous curve without edges or straight lines. The profile of the tie bar (13) is essentially a circle segment with sides leveling off toward the bottom of the groove (12). This design allows a gradual change in block stiffness unlike conventional tie bars, which only provide a sudden drop-off in block stiffness.
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