Tire vulcanizer and tire vulcanizing method
US9028738B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2012 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | May 18, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/0675
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
In a tire vulcanizer having two sets of portions, each of which includes a lower mold, an upper mold, and a center mechanism provided with a bladder, a nitrogen gas heated in a first heating device is supplied to an interior of the bladder of the center mechanism which is placed on the upstream side in the circulating direction of the nitrogen gas. The nitrogen gas discharged from the interior of the bladder of the center mechanism is used for vulcanization and patterning and a temperature thereof is lowered. However, this nitrogen gas is heated again in a second heating device, so that the temperature is increased. Therefore, the nitrogen gas heated in the second heating device is supplied to an interior of the bladder of the center mechanism which is placed on the downstream side in the circulating direction of the nitrogen gas.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.