Reifen, Reifenform und Verfahren zur Herstellung

• Main Authors: CZARNECKI, JOHN P., N.W., UNIONTOWN, OHIO 44685, US, BARTLEY, DONALD RAY, CUYAHOGA FALLS, OHIO 44221, US, AHMAD, SHAMIM, N. CANTON, OHIO 44720, US
• Format: Patent
• Language: German
• Published: 06.03.1997
• Edition: 6
• Subjects: AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; DEVICES OR ARRANGEMENTS RELATED TO TYRES; INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; PERFORMING OPERATIONS; PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; TRANSPORTING; TYRE CHANGING OR REPAIRING; TYRE INFLATION; VEHICLE TYRES; VEHICLES IN GENERAL; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

In a tire mold (22) having a pair of mold parts separable about cooperating surfaces (62,64) of the respective mold parts which define a parting line region, each of the mold parts includes a surface defining at least a portion of a cavity for shaping a tire. The tire mold further includes a plurality of pockets (108,122) for defining a respective plurality of circumferentially arranged tread elements in the tire. The improvement comprises a vacuum source in fluid communication with the cavity of the tire mold for evacuating fluid from the cavity in the tire mold through a space (66) located between the surfaces of the mold parts which define the parting line region. A vent fluidly connects a pair of adjacent pockets. A passage associated with one of the mold parts provided fluid communication between the vacuum source and one of the pair of adjacent pockets connected by the vent.