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US 5,350,001 AGranted
Tire having a tread surface with fine cut-outs at the tire tread surface
AssigneeSemperit Reifen Aktiengesellschaft
InventorsOtto Beckmann, Helmut Loidl, Ernst Petraschek
Life of this patent
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Abstract
The lamella fine cut-outs provided in profile elements of the tread surface of a tire, have three-dimensionally structured wall regions. Such wall regions restrict relative movements of the mutually facing wall regions in lateral as well as in radial direction. In such manner there are improved the travel characteristics as well as the wear characteristics like break-outs and irregular wear of such lamella tires.
Claims24
A tire comprising:
- a tread surface defining a circumferential direction and having a predetermined profile formed by profile elements;
- said profile elements extending in said circumferential direction;
- said profile elements including lamella fine cut-outs
- said lamella fine cut-outs defining wall regions deviating from a planar shape;
- said wall regions including at least partially three-dimensionally structured wall regions which are associated to each other and comprise protruding and receding edges and surfaces;
- said edges of said three-dimensionally structured wall regions define a network of said edges;
- and
- said network of edges further comprising respective pluralities of at least three of said edges, each of said at least three edges branching from a common area in a respective different direction.
5 more elements
A tire comprising:
- a tread surface defining a circumferential direction and having a predetermined profile formed by profile elements;
- said profile elements extending in said circumferential direction;
- said profile elements including lamella fine cut-outs, said lamella fine cut-outs have a predetermined depth;
- said lamella fine cut-outs defining wall regions deviating from a planar shape;
- and
- said wall regions including at least partially three-dimensionally structured wall regions which are associated to each other and comprise a network of intersecting edges and intersecting surfaces with at least three of said intersecting surfaces extending in different directions from a common point, said common point from which each of said at least three surfaces extend in a respective different direction is positioned intermediate said depth for at least a plurality of said respective pluralities.
3 more elements
Dependencies are inferred from the claim text.