发明名称 Method of manufacturing a pneumatic tire
摘要 <p>A method of manufacturing a pneumatic tire comprises making a raw tire (1) and vulcanizing the raw tire. The raw tire (1) comprises a toroidal main body (20) and a tread ring (21). The tread ring (21) comprises a tread reinforcing belt (15) and a raw tread rubber (14) disposed on the radially outside of the tread reinforcing belt. The making of the tread ring (21) comprises: using a forming drum (D) which is provided with a pair of lateral cylindrical surfaces (DS) and a central cylindrical surface (40S) therebetween to define a depression (40) having a depth and a width; winding the tread reinforcing belt (15) on a central cylindrical surface (40S) so that the edges of the tread reinforcing belt are placed in edge zones (40E) of the depression (40); and forming the tread rubber (14) by winding at least one rubber tape (30) on a winding face (S) which is formed by said lateral cylindrical surfaces (DS) and the outer circumferential surface (15S) of the tread reinforcing belt (15) wound within the width of the depression, wherein in said edge zones, the depth of the depression is substantially the same as the thickness of the tread reinforcing belt. </p>
申请公布号 EP1621328(A3) 申请公布日期 2007.03.07
申请号 EP20050015456 申请日期 2005.07.15
申请人 SUMITOMO RUBBER INDUSTRIES, LTD. 发明人 MIKI, YOUJIROU
分类号 B29D30/60;B29D30/70 主分类号 B29D30/60
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