发明名称 METODO PER LA REALIZZAZIONE DI UNA TESTA ANULARE DI BATTISTRADA SENZA GIUNZIONE.
摘要 A method of producing a spliceless annular tread cap (2), whereby a portion (23) of an extruded tube (21) of green elastomeric material is fed inside an annular body (8), the inner annular surface (17) of which presents a diameter approximately equal to but no smaller than the outside diameter of the tubular portion (23), and negatively reproduces the pattern of the finished tread cap (2); the tubular portion (23) being expanded and calendered against the inner surface (17) of the annular body (8) by means of a roller (34) moved into a position coplanar with and eccentric in relation to the annular body (8). <IMAGE>
申请公布号 ITTO910823(A1) 申请公布日期 1993.05.01
申请号 IT1991TO00823 申请日期 1991.10.31
申请人 FIRESTONE INTERNATIONAL DEVELOPMENT S.P.A. 发明人 SIEGENTHALER KARL J.
分类号 B29C43/36;B29C69/00;B29D30/52;B29K21/00;B60C11/00 主分类号 B29C43/36
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