Tire mold, production method for tire, and tire
US11884034B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 2021 |
| Grant date | Jan 30, 2024 |
| Priority date | — |
| Expiry date | Feb 4, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/0616
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a tread-forming surface of a mold, a contour of a land surface-forming portion located between two projections among at least three land surface-forming portions can be represented by a single circular arc that is convex outward. In a case where, of the two projections, one projection is a wide projection and the other projection is a narrow projection, when a surface that has a contour represented by at least one circular arc and that is tangent to the at least three land surface-forming portions is defined as a reference surface of the tread-forming surface, a drop distance from the reference surface to an end on the wide projection side of the land surface-forming portion can be longer than a drop distance from the reference surface to an end on the narrow projection side of the land surface-forming portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.