Pneumatic tires

Details Pneumatic tires Pneumatic tires

1995-09-29

1998-02-03

Maki, Steven D.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152209D, B60C11500

Patent

active

057140219

ABSTRACT:
A pneumatic tire having improved steering stability and drainage property comprises a tread divided into two tread parts at a center of a tread pattern, and a plurality of main grooves arranged in each of these tread parts, each of which main grooves being comprised of a steep slope segment, a bending segment and a gentle slope segment. The main grooves comprises a group of first main grooves and a group of second main grooves, in which the steep slope segment and gentle slope segment of the second main groove are substantially in parallel with those of the first main groove. Further, a zone of a land portion sandwiched between the steep slope segments of these main grooves is fairly narrow in a land width as measured in a direction perpendicular to the first main groove as compared with a zone of the land portion sandwiched between the gentle slope segments of the main grooves, and a surface height of the zone of the land portion sandwiched between the steep slope segments is gradually decreased toward the pattern center.

REFERENCES:
patent: D360864 (1995-08-01), Munster et al.
patent: 5131443 (1992-07-01), Kuhr et al.
patent: 5234042 (1993-08-01), Kuhr et al.
patent: 5375639 (1994-12-01), Suzuki et al.
patent: 5421391 (1995-06-01), Himuro
patent: 5423364 (1995-06-01), Himuro
patent: 5609699 (1997-03-01), Himuro

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