基本信息:
- 专利标题： 用于工地类型的重型车辆的轮胎的胎圈
- 专利标题（英）：Bead of a tyre for a heavy vehicle of construction plant type
- 申请号：CN201280027750.7 申请日：2012-06-06
- 公开(公告)号：CN103582575A 公开(公告)日：2014-02-12
- 发明人： L·邦迪
- 申请人： 米其林集团总公司 , 米其林研究和技术股份有限公司
- 申请人地址： 法国克莱蒙-费朗
- 专利权人： 米其林集团总公司,米其林研究和技术股份有限公司
- 当前专利权人： 米其林集团总公司
- 当前专利权人地址： 法国克莱蒙-费朗
- 代理机构： 北京戈程知识产权代理有限公司
- 代理人： 程伟; 王锦阳
- 优先权： 1154926 2011.06.07 FR
- 国际申请： PCT/EP2012/060646 2012.06.06
- 国际公布： WO2012/168270 FR 2012.12.13
- 进入国家日期： 2013-12-05
- 主分类号： B60C15/00
- IPC分类号： B60C15/00 ; B60C15/06
The invention relates to improvements to the endurance of the beads of a radial tyre for a heavy vehicle of construction plant type, by reducing the cracking that starts at the end of the turned-back portion and spreads through the coating, edging and filling polymer materials. According to the invention, a transition element (25), made of a transition polymer material, is at least partially in contact, over its axially exterior face, with the edging polymer material (22) and, over its axially interior face, with a filling polymer material (23b), the radially exterior (E25) and radially interior (I25); ends of the transition element are respectively radially on the outside and radially on the inside of the end of the turned-back portion and the elastic modulus at 10% elongation of the transition polymer material is somewhere between the respective moduli at 10% elongation of the edging polymer material and of the filling polymer material with which the transition element is in contact.
公开/授权文献:
- CN103582575B 用于工地类型的重型车辆的轮胎的胎圈 公开/授权日：2016-04-20
IPC结构图谱:
| B | 作业；运输 |
| --B60 | 一般车辆 |
| ----B60C | 车用轮胎（制造、修理入B29）；轮胎充气；轮胎的更换；一般充气弹性体与气门的连接；与轮胎有关的装置或布置 |
| ------B60C15/00 | 胎沿，例如帘布层翻卷或搭接 |