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US 6,659,146 B2Granted
Motor vehicle tire with a tread profile for a superior grip on snow and ice
AssigneeContinental Aktiengesellschaft
InventorsHelge Dörrie, Franz Diensthuber
Life of this patent
Estimating the term…
Abstract
In a motor vehicle tire (1) for driving conditions as they occur during the winter months, parallel incisions are provided with staggers that are placed such that a smaller distance between adjacent incisions arises in the central region of the pad than in the marginal region of the pad.
Claims10
Motor vehicle tire with a tread profile for a superior grip on snow and ice
- wherein a plurality of incisions (E1, E2, E3) that essentially extend parallel to one another are arranged within profile positives, each incision comprising main sections (EH),
- wherein the distance (a) between the main sections (EH) of adjacent incisions (E) of the same profile positive is constant or deviates by no more than 20%,
- wherein the average distance (am) between two adjacent incisions (E) lies between 3 mm and 7 mm,
- wherein each of the incisions (E) contain at least one staggered section (EV) joined to the main sections (EH) so as to define a stair shape when viewed from the top, the staggered section (EV) being almost perpendicular to the main sections (EH), and
- wherein the length (lEV) of the staggered section (EV) amounts to no more than half the length (lEH) of each main section (EH) of the incision (E), wherein
- the staggered sections (EV) are offset relative to one another in adjacent incisions (E1, E2) of the same profile positive,
- such that a rubber web (G) is respectively situated between said staggered sections (EV), wherein the length of the rubber web transverse to the length of the two adjacent main sections (EH1, EH2) of the adjacent incisions only lies between 30% and 70% of the distance (a) between the main sections (EH1, EH2) of the adjacent incisions at a location spaced from the rubber web.
4 more elements
Dependencies are inferred from the claim text.