Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1989-06-22
1991-01-08
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
D12145, B60C 1106, B60C 1112
Patent
active
049827740
ABSTRACT:
A pneumatic vehicle tire having a tread profile comprised of several axially adjacent, circumferentially extending profiled ribs separated from one another by circumferentially extending grooves and provided with fine slits that extend at an angle to the circumferential direction. Rune-shaped profiled rib segments are formed by stepped fine slits and are disposed such that: a profiled rib in the center of the tread, and profiled shoulder ribs, comprise first profiled rib segments having a first lug-shaped segment portion that extends beyond first side edges of these ribs that extend parallel to the circumferential direction, and also comprise second profiled rib segments having a second lug-shaped segment portion that extends beyond second side edges of these ribs that also extend parallel to the circumferential direction, with the first and second rib segments of a given rib being disposed adjacent one another, having essentially identical contours, and being turned by 180.degree. relative to one another; respective profiled ribs disposed between the central rib and the shoulder ribs comprise third profiled rib segments having a third lug-shaped segment portion, and also comprise a stepped fourth profiled rib segment, with the third and fourth rib segments of one of these ribs having essentially the same contour as, and being turned by 180.degree. relative to, the third and fourth rib segments of the other of these ribs; and all of the segment portions, which project laterally into respective circumferential grooves, are disposed across from correspondingly shaped recesses in adjacent profiled ribs.
REFERENCES:
patent: D228423 (1973-09-01), Blankenship
patent: D290243 (1987-06-01), Ghilardi
patent: 4705088 (1987-11-01), Ghilardi
patent: 4926919 (1990-05-01), Hopkins et al.
Ball Michael W.
Continental Aktiengesellschaft
Osele Mark A.
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