Tire for motor vehicle wheels having a tread producing a low rolling noise
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United States of America Patent
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-
Nov 6, 2001
Issued Date -
N/A
app pub date -
Jan 20, 1999
filing date -
May 31, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A tread for motor-vehicle tires has a raised pattern formed of a plurality of shaped blocks 7 distributed in circumferential rows 3, 4, 5, 6 disposed in parallel and in side by side relation. The number of the shaped blocks 7 arranged in each row gradually increases while moving from the equatorial plane X--X to the axial outer side edges 1a of the tread 1. Thus a gradual increase in the longitudinal stiffness of the shaped blocks 7 is achieved on passing from the side edges 1a of the tread 1 to the equatorial plane X--X, which brings about a reduction in the mobility of said blocks on the road contact patch and lower rolling noise.
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