Winter tire tread siping pattern
US8863797B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 29, 2010 |
| Grant date | Oct 21, 2014 |
| Priority date | — |
| Expiry date | Jul 27, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S152/03
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A vehicle wheel tire includes a tire tread having a circumferential center tread region in which block elements are arranged in a symmetric pattern on opposite sides of a tire circumferential equatorial centerplane. Symmetrically disposed block elements on opposite sides of the centerplane have a plurality of spaced apart and laterally extending wavy sipes extending across the block element. Selective pairs of adjacent sipes are interconnected by one or more circumferentially oriented notches. The wavy sipes have regions of varying depth and include one or more recessed region(s) and one or more non-recessed region(s). A circumferentially disposed notch interconnecting a pair of adjacent wavy sipes at opposite notch ends intersects the wavy sipes at non-recessed sipe regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.