Tire vulcanization mold
US8740596B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2011 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Jan 25, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/0617
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tire vulcanization mold includes an elongated exhaust groove open to a tire molding surface, a plate-like blade inserted in the exhaust groove leaving a small gap between the blade and groove defining surfaces, and an exhaust hole connecting the exhaust groove and mold exterior. The exhaust groove has a length reduced partway in a mold depth direction, and includes upper and shorter lower groove portions positioned on mold surface and back surface sides, respectively, of the mold. The upper groove portion thickness is greater than the blade thickness, and the lower groove portion thickness is less than or equal to the blade thickness. The blade includes a communicating portion connecting the upper and lower groove portions, and abuts against portions of the mold defining a bottom surface of the upper groove portion and edge surfaces of both sides in a thickness direction of the lower groove portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.