发明名称 |
METHOD FOR CONTROLLING DEPOSITION OF A LAYER OF SEALING POLYMERIC MATERIAL ON A FORMING DRUM AND PROCESS FOR PRODUCING SELF-SEALING TYRES FOR VEHICLE WHEELS |
摘要 |
In a process for producing self-sealing tires for vehicle wheels, a continuous sealing assembly, including a self-supporting thermoplastic film and a layer of polymeric sealing material, is wound from a reel holder on which is stocked, separated by a protective film associated with the layer of polymeric sealing material, cut to size and then wound around a forming drum. Winding the sealing assembly cut to size includes: feeding the sealing assembly cut to size onto a chute from top to bottom up to the forming drum; depositing a leading end of the sealing assembly cut to size on a radially outer surface of the forming drum; locking the leading end on the forming drum by means of a locking bar; setting the forming drum in rotation with the locking bar dragging the sealing assembly cut to size and winding it on the forming drum up to overlapping; and sealing a trailing end of the sealing assembly cut to size on the leading end. |
申请公布号 |
EP2790909(A1) |
申请公布日期 |
2014.10.22 |
申请号 |
EP20120799300 |
申请日期 |
2012.10.30 |
申请人 |
PIRELLI TYRE S.P.A. |
发明人 |
D'ORIA, FRANCESCO;SABBATANI, ENRICO |
分类号 |
B29D30/30;B29D30/06;B29D30/26;B29K67/00;B29K77/00;B29K101/00;B29K105/00 |
主分类号 |
B29D30/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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