Resilient tires and wheels – Tires – resilient – Anti-skid devices
Patent
1991-09-04
1993-10-26
Ball, Michael W.
Resilient tires and wheels
Tires, resilient
Anti-skid devices
B60C 1111
Patent
active
052562212
ABSTRACT:
A pneumatic vehicle tire of a radial belt construction has a tire tread comprising first trapezoidal tread elements that are arranged in circumferential rows and slanted transverse rows whereby the circumferential rows and the slanted transverse rows are separated from one another by circumferential grooves and slanted transverse grooves. The first trapezoidal tread elements form pairs that are enclosed by adjacent ones of the circumferential grooves and adjacent ones of the slanted transverse grooves. The first trapezoidal tread elements of such a pair are arranged adjacent to one another within one of the slanted transverse rows in a mirror-symmetrical manner relative to one another and are staggered relative to one another in a circumferential direction of the tire. The tread elements of such a pair are separated by a short circumferential groove at a bottom of which a circumferential cross-piece is provided that connects the tread elements of the pair. The slanted transverse rows have a respective transverse center line that is disposed at an angle of from 60.degree. to 80.degree. relative to a circumferential center line of the tire, whereby the slanted transverse edges of the first trapezoidal tread elements are essentially parallel to the transverse center line. Second trapezoidal tread elements are arranged in axially outwardly disposed circumferential rows and form pairs in the circumferential direction of the tire. One of the second trapezoidal tread elements of such a pair has a greater contact surface than the other. The second trapezoidal tread elements of such a pair are arranged in a staggered manner relative to one another in an axial direction of the tire and are separated from one another by a transverse groove. At a bottom of the transverse groove a transverse cross-piece is provided that connects the tread elements.
REFERENCES:
patent: D266920 (1982-11-01), Candiliotis
patent: D287841 (1987-01-01), Ono
patent: D304706 (1989-11-01), Nakatani
patent: D312995 (1990-12-01), Tagashira
patent: D320966 (1991-10-01), Miller et al.
patent: 4481991 (1984-11-01), Pieper
Ball Michael W.
Krawczyk Nancy T.
Uniroyal Engelbert Reifen GmbH
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