Tire mold and tire with internal grooves in shoulder area
US8075294B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 14, 2009 |
| Grant date | Dec 13, 2011 |
| Priority date | — |
| Expiry date | Aug 12, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2030/00
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tire mold is described that includes a plurality of tread molding segments having an inner surface for molding the tire tread. The mold further includes a plurality of sidewall plates having an inner surface for molding the tire sidewall. The tread mold segments together with the sidewalls cooperate to form a tire molding cavity. The sidewall plate further comprises a slot that extends from the outer surface of the tread segment to the inner mold surface, and has a piston having a head slidably received in the slot. A pin is positioned between the piston head and an end of the slot. The mold further includes actuating means for actuating the piston in the slot when the mold is closed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.