TYRE BEAD STRUCTURE

WIPO Patent Application WO/2017/054415

A1

A tyre bead structure, comprising a bead steel wire ring (1), an outer portion of the bead steel wire ring being sequentially wrapped with a carcass ply (2) and bead steel wire cloth (3). The carcass ply (2) is wound around a bottom portion of the bead steel wire ring (1) from the inside of the bead steel wire ring (1) to the outside and then turns up to form a ply turn-up portion (4), an auxiliary steel wire ring (5) is arranged on the bead steel wire ring (1), and the ply turn-up portion (4) passes between the bead steel wire ring (1) and the auxiliary steel wire ring (5) and extends upwardly along the inside of the auxiliary steel wire ring (5). An upper portion of the auxiliary steel wire ring (5) is provided with bead filler (6). By applying a dual-steel wire ring structure and a special type of filler, and altering the carcass turn-up shape, the bead structure improves the tyre bead positional anti-deformation performance, eliminates damage to the tyre bead by carcass turn-up end point stress concentrations, and improves anti-carcass withdrawal performance.

WANG FENG (CN)
LIU LIANBO (CN)
LIU GUIXIA (CN)
JIANG YI (CN)
MA XIAOGANG (CN)
WEN XIAOWEI (CN)
JIA ZHEN (CN)

PCT/CN2016/075956

April 06, 2017

March 09, 2016

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SHANDONG LINGLONG TYRE CO LTD (CN)

B60C15/06; B60C15/00

CN205059092U	2016-03-02
CN202046161U	2011-11-23
CN203945919U	2014-11-19
CN203854427U	2014-10-01
CN101332746A	2008-12-31
CN203766415U	2014-08-13
EP1433624A2	2004-06-30
EP0949091A2	1999-10-13

JINAN SHUNYUAN PATENT AGENCY CO., LTD. (CN)

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