Process for assembling a green tire
US5248357A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 25, 1991 |
| Grant date | Sep 28, 1993 |
| Priority date | — |
| Expiry date | Jul 25, 2011 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D30/245
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A green tire building process wherein a cylindrical belt (B) comprising a tread (A) and a breaker (3) are applied around a toroidally shaped tire carcass (1) on a tire carcass building drum (13) to assemble a green tire. The breaker cushions (6) are fit to the inner circumferential surfaces of the opposite edge portions of the breaker (3) prior to applying the belt (B) around the tire carcass (1). The breaker cushions are fit to the breaker by first winding the cushions around axial end portions of a belt forming drum in a manner such that the diameter of the radially inner peripheral surfaces of the breaker cushions decrease in diameter towards the axially outer extremities of the drum and the radially outer surfaces of the cushions are generally flat. Then the breaker and tread are wound onto the breaker cushions to form the belt which is later removed from the belt forming drum before being applied onto the tire carcass.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.