Method of treading tires
US3964949A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 1974 |
| Grant date | Jun 22, 1976 |
| Priority date | — |
| Expiry date | Aug 30, 1994 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/523
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A method of treading or re-treading tires involves compression of the wearing surface of the tread. A tread strip, which may be an annular band, is compressed in a direction parallel to its longitudinal axis and is bonded to a tire carcass, while being maintained under compression. This may be done by compressing a tread band into an undersized mould; apparatus for assisting this is also described. Alternatively, the tread strip may be of finite length, for example to form a lug, in which case the strip is formed with a radius of curvature less that of the surface to which it is to be applied, so that the convex (wearing) surface of the strip is compressed upon application to the carcass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.