Method and plant for building tyres
US11230075B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2020 |
| Grant date | Jan 25, 2022 |
| Priority date | — |
| Expiry date | Jun 27, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/2657
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A carcass sleeve is situated in a radially external position with respect to a toroidal forming drum, arranged in a first radially contracted operative condition. The carcass sleeve is shaped according to a toroidal configuration while the forming drum is positioned inside the carcass sleeve. During shaping of the carcass sleeve, the forming drum is radially expanded up to a second radially expanded operative condition. Upon completed shaping, the carcass sleeve is coupled to the forming drum in the second operative condition. The forming drum, coupled to the shaped carcass sleeve, is arranged in proximity to at least one device for building at least one belt layer at a radially external position relative to the shaped carcass sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.