Tire vulcanization mold and pneumatic tire
US10960622B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 27, 2017 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Apr 29, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C2011/013
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Provided is a tire vulcanization mold which includes a sector mold configured to mold a tread portion; and a pair of upper and lower side plates positioned on an inner diameter side of the sector mold and configured to mold side wall portions, the sector mold and the pair of upper and lower side plates being configured to engage with each other by fitting engagement by way of fitting portions which opposedly face each other in a radial direction. At least either one of the sector mold and the side plate has: a recessed portion extending from each fitting surface in a tire radial direction and indented outward in a tire width direction; and a saw cut groove having a groove shape extending in a tire radial direction along at least one of an edge portion and a corner portion of the recessed portion and communicating with the fitting surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.