Three-dimensional sipes for treads
US7143799B2 · kind B2 · utility
21Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2003 |
| Grant date | Dec 5, 2006 |
| Priority date | — |
| Expiry date | Mar 23, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S152/03
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Both a mold blade for forming sipes and the sipe so formed in a tire tread element have three dimensional portions. In the formed sipe, the three dimensional portion creates a constant interlocking of the opposing sipe faces. The blade and the sipe have at least one row of alternating polygonal shaped recesses and protrusions. The recesses and protrusions terminate in a vertex; the vertex has a planar, or two-dimensional, configuration that is parallel to either-the blade centerline or the sipe centerline.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.