Pneumatic tire and mold for vulcanization-molding same
US11358418B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 4, 2019 |
| Grant date | Jun 14, 2022 |
| Priority date | — |
| Expiry date | Apr 1, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C2019/008
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A pneumatic tire has a turned-up carcass ply and a non-turnup carcass ply. The turned-up carcass ply is turned up around bead cores in respective bead portions from the inside to outside of the tire so as to form a pair of turned up portions extending radially outwardly on the axially outsides of the respective bead cores, and a main portion extending between the turned up portions. The non-turnup carcass ply extends between the bead portions and terminates to have edges positioned on the axially outsides of the respective turned up portions. The bead portions are each provided on its outer surface with vent lines protruding therefrom and extending continuously in the tire circumferential direction. The vent lines include a radially outer vent line formed radially outside the edges of the non-turnup carcass ply, and a radially inner vent line formed radially inside the edges of the non-turnup carcass ply.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.