Tire vulcanization mold and manufacturing method for tire
US11931979B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2020 |
| Grant date | Mar 19, 2024 |
| Priority date | — |
| Expiry date | Jul 1, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/0663
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tire vulcanization mold in which a surface roughness in the groove molding portion of the tread molding surface is made smaller than a surface roughness in the land portion molding portion, in which a surface roughness in the groove molding portion is minimized to 0.12 μm or less in a range including at least a main groove molding portion, and in which a surface roughness in the land portion molding portion is made to be 3.2 μm or more, is used to manufacture a tire, and when cleaning the tread molding surface, the tread molding surface is irradiated with a laser beam to remove contaminant adhered to the tread molding surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.