发明名称 |
PROCESS AND APPARATUS FOR MANUFACTURING TYRES |
摘要 |
A plurality of strip-like elements is applied onto a forming drum externally having a substantially cylindrical laying surface. The strip-like elements are disposed in mutually approached relationship to form at least one first annular reinforcing layer on the forming drum itself set to a first work diameter at which each of the applied strip-like elements on the laying surface subtends an arc of a circumference of a width as large as a submultiple integer of the overall circumferential extension of the laying surface itself. Adjustment devices operating on the forming drum subsequently carry out expansion of the latter to a second work diameter larger than the first work diameter, while maintaining its laying surface substantially cylindrical. |
申请公布号 |
US2016067935(A1) |
申请公布日期 |
2016.03.10 |
申请号 |
US201514940906 |
申请日期 |
2015.11.13 |
申请人 |
Pirelli Tyre S.p.A. |
发明人 |
MARCHINI Maurizio;Amurri Cesare;Mancini Gianni;Lo Presti Gaetano |
分类号 |
B29D30/20;B29D30/70;B29D30/24 |
主分类号 |
B29D30/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
Milano IT |