公开(公告)号：EP2910391A4

公开(公告)日：2016-06-08

申请号：EP13854098

申请日：2013-10-29

申请人： SUMITOMO RUBBER IND

发明人： UEDA KENJI

IPC分类号： B60C15/00 ,  B60C15/04 ,  B60C15/06

CPC分类号： B60C15/04 ,  B60C5/00 ,  B60C15/02 ,  B60C15/06 ,  B60C2001/005 ,  B60C2015/0614 ,  B60C2015/0617 ,  Y10T152/10828

公开(公告)号：EP3205489A4

公开(公告)日：2018-04-25

申请号：EP15858985

申请日：2015-11-04

申请人： SUMITOMO RUBBER IND

发明人： SAKAMOTO MASAYUKI ,  UEDA KENJI ,  SAGAWA TAKAMICHI

IPC分类号： B29D30/30 ,  B29D30/32 ,  B29D30/52 ,  B29D30/60 ,  B29D30/72 ,  B60C11/00 ,  B60C13/00 ,  B60C19/08

CPC分类号： B29D30/30 ,  B29D30/32 ,  B29D30/60 ,  B29D30/72 ,  B29D2030/526 ,  B60C11/00 ,  B60C19/08

摘要： A pneumatic tire manufacturing method is provided in which winding collapse is prevented, there is no possibility of adverse effects on the FV, a current-carrying layer can be formed easily, and down-stitching can be dispensed with or minimized in the manufacture of SOT-structure pneumatic tires having a base-pen structure in the tread. This pneumatic tire manufacturing method involves: a step in which a sidewall, an inner liner, and a ply are bonded on a first molding drum, beads are set, and the tread side part that will form the current-carrying layer is formed on the side wall, forming a first cover; a step in which a breaker and band are bonded on a second molding drum and the tread center part is formed on the band, shaping the tread ring; a step in which the first cover is inserted inside of the tread ring and inflated to bond to the tread ring with pressure; and a step in which the sidewall is bonded to the lateral surface of the first cover, and the tread side part and the tread center part are bonded together.