Method for manufacturing an optimized layer of self-sealing product
US12427738B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 24, 2021 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Feb 13, 2042 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/0694
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The manufacturing method makes it possible to manufacture a tire (10) comprising: a tread (14), an airtight internal layer (18), and at least one layer of a self-sealing product (80) extending circumferentially radially on the inside of part of the airtight internal layer (18). During the method, a strip or a bead (200) of a self-sealing product is wound through multiple circumferential turns (Nai, Nbj) radially on the inside of the airtight layer (18) of the tire, which does not have the layer of self-sealing product (80) yet, and at least partially in line with the tread (18). The winding step is carried out according to a law for winding the strip or the bead (200) in circumferential turns. During the winding step, at least one parameter of the winding law making it possible to axially vary the thickness of the layer of self-sealing product (80) is varied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.